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A buttstock structure is used in a toy gun, for collaborating with a gun body. The gun body includes an extension member connected to the gun body. The extension member is formed with a plurality of retaining troughs. The buttstock structure includes a buttstock body and an adjusting trigger. The bu

A buttstock structure is used in a toy gun, for collaborating with a gun body. The gun body includes an extension member connected to the gun body. The extension member is formed with a plurality of retaining troughs. The buttstock structure includes a buttstock body and an adjusting trigger. The buttstock body includes a chamber accommodating the extension portion, a latch selectively engaged with a respective one of the retaining troughs, and a latch recess accommodating the latch. A retaining pin is inserted in the latch and protrudingly disposed on a side wall of the latch recess. An adjusting trigger is movably connected with the buttstock body. The adjusting trigger includes a handle and a linking member connected to the handle. Two inclined slots for containing the retaining pin are formed at one end of the linking member.

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1. A buttstock structure for a toy gun, for collaborating with a gun body, the gun body comprising an extension member connected to the gun body, the extension member being formed with a plurality of retaining troughs, the buttstock structure comprising: a latch including a hollow cylindrical body,

1. A buttstock structure for a toy gun, for collaborating with a gun body, the gun body comprising an extension member connected to the gun body, the extension member being formed with a plurality of retaining troughs, the buttstock structure comprising: a latch including a hollow cylindrical body, and a pillar protruding from one end of the hollow cylindrical body and selectively engaged with a respective one of the retaining troughs;a buttstock body including a chamber accommodating the extension portion, and a latch recess accommodating the latch;a retaining pin inserted in the latch and protrudingly disposed on a side wall of the latch recess;a fastener inserted in the latch for limiting the latch from movement;a resilient element disposed inside the hollow cylindrical body with two ends directly contacting with the retaining pin and the fastener, respectively, for restoring the latch to an original position; andan adjusting trigger movably connected with the buttstock body, the adjusting trigger including a handle and a linking member connected to the handle, two inclined slots for containing the retaining pin being formed at one end of the linking member, wherein when the adjusting trigger moves away from the latch along an extending direction of the extension member, the two inclined slots make the retaining pin move down to further drive the pillar of the latch to be removed from the retaining trough, and thereby the buttstock body is moved with respect to the extension portion. 2. The buttstock structure of claim 1, wherein the latch further includes a first latch hole for insertion of the retaining pin, a first fastener hole for insertion of the fastener, and an opening at an opposite end of the hollow cylindrical body for receiving the resilient element to be disposed inside the hollow cylindrical body. 3. The buttstock structure of claim 2, wherein the buttstock body is formed with a second latch hole and a second fastener hole communicating with the latch recess, the second latch hole and the first latch hole are disposed correspondingly, the second fastener hole and the first fastener hole are disposed correspondingly, the first fastener hole which is a slot hole is longer than the first latch hole which is a round hole, the resilient element is disposed between the retaining pin and the fastener, and the second fastener hole which is another round hole is shorter than the second latch hole which is another slot hole. 4. The buttstock structure of claim 1, wherein the adjusting trigger includes a flat plate connected to the handle and two side plates respectively connected to two sides of the flat plate, the two inclined slots are respectively formed on the two side plates, and the flat plate is formed with a through hole and a slide slot communicating with the through hole. 5. The buttstock structure of claim 4, further comprising a stopper pin inserted in the buttstock body, a limiting hole disposed corresponding to the stopper pin being formed on an upper edge of each of the side plates, wherein the movement of the adjusting trigger is limited by the movement of the stopper pin on the limiting hole. 6. The buttstock structure of claim 4, further comprising a fixed pillar integrally formed with the buttstock body, the through hole of the adjusting trigger enclosing the fixed pillar, thereby making the flat plate movable with respect to the fixed pillar by means of the slide slot. 7. The buttstock structure of claim 1, further comprising a buttstock cover disposed at one side of the buttstock body, the buttstock body including two apertures and at least one pivot hole, the buttstock cover including two press portions and at least one pivot being rotatable with respect to the at least one pivot hole, the two press portions being movably connected to the two apertures. 8. The buttstock structure of claim 7, wherein an accommodating space is formed between the buttstock body and the buttstock cover. 9. The buttstock structure of claim 1, wherein a plurality of first engagement slots and a plurality of second engagement slots respectively disposed corresponding thereto are formed at two sides of the buttstock body. 10. The buttstock structure of claim 9, further comprising a first carrier including a plurality of first blocks and a second carrier including a plurality of second blocks, the first carrier being engaged with each of the first engagement slots by means of each of the first blocks, the second carrier being engaged with the second engagement slots by means of each of the second blocks. 11. The buttstock structure of claim 10, wherein each of the first engagement slots and each of the second engagement slots are disposed in a staggered pattern, a portion of the first engagement slot forms a first engagement hole and a first engagement trench communicating with and extending along the extending direction from the first engagement hole, and a portion of the second engagement slot forms a second engagement hole and a second engagement trench communicating with and extending along the extending direction from the second engagement hole. 12. The buttstock structure of claim 11, wherein a portion of the first block includes a first neck portion and a first head portion connected to the first neck portion, a portion of the second block includes a second neck portion and a second head portion connected to the second neck portion, and for engaging the first carrier and the second carrier with the buttstock body, the first head portion is disposed corresponding to the first engagement hole, and the second head portion is disposed corresponding to the second engagement hole, then sliding the first carrier and the second carrier along the extending direction so that the first neck portion is engaged with the first engagement trench, and the second neck portion is engaged with the second engagement trench. 13. The buttstock structure of claim 10, wherein the first carrier encloses a first casing, and the second carrier encloses a second casing. 14. The buttstock structure of claim 13, wherein a first gap is formed on one end of the first casing, a second gap is formed on the second casing, and the buttstock body is formed with a first recess corresponding to the first gap and is formed with a second recess corresponding to the second gap. 15. The buttstock structure of claim 10, wherein the first carrier and the second carrier have an arc-shaped cross-section.