Nail gun

Abstract

The utility model discloses a nail gun, and belongs to the technical field of power tools. The nail gun comprises a gun body, a firing pin, a torsional spring and a lifting mechanism, the firing pin is movably arranged in the gun body, the torsional spring is located in the gun body, one end of the torsional spring is directly or indirectly connected with the firing pin, and the torsional spring is used for driving the firing pin to stretch out; the lifting mechanism can be connected with the firing pin and used for lifting the firing pin so that the torsional spring can store energy. According to the scheme, the torsional spring is adopted as a driving part to drive the firing pin to move towards the muzzle of the gun body to achieve the nail striking effect, the structure is simple, the torsional spring is low in cost and convenient to disassemble, assemble and replace, the use cost of the nail gun is reduced, and due to the fact that the torsional spring has the vibration absorbing and striking effects, the service life of the nail gun is prolonged. And in the process of driving the firing pin to move, the effects of buffering impact and reducing vibration can be achieved, the problem of vibration is avoided, and therefore the use experience feeling of the nail gun can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of power tools, and particularly relates to a nail gun. Background Art

[0002] A nail gun is a common power tool and is widely used in fields such as construction, furniture manufacturing, and automobile manufacturing.

[0003] Existing nail guns mainly use two methods to eject fasteners such as nails. Among them, one method is to use a cylinder or a gas spring as a driving member to drive a firing pin to eject fasteners such as nails, and the other is to use the elastic force of a compression spring to drive the firing pin to eject fasteners such as nails. However, due to the high cost of the cylinder or gas spring and the difficulty in replacement or maintenance, the use cost of the nail gun increases; for the method of using a compression spring as the driving member, there is a problem of tremor during the deformation process of the compression spring, which in turn causes the nail gun to vibrate, resulting in a poor user experience of the nail gun.

[0004] Therefore, existing nail guns have defects of high use cost or poor user experience. Utility Model Content

[0005] The purpose of the embodiments of this application is to provide a nail gun, which can solve the problems of high use cost or poor user experience of nail guns in related technologies.

[0006] The embodiments of this application provide a nail gun, including:

[0007] A gun body;

[0008] A firing pin movably arranged in the gun body;

[0009] A torsion spring located in the gun body, one end of the torsion spring is directly or indirectly connected to the firing pin and is used to drive the firing pin to extend;

[0010] A lifting mechanism that can be connected to the firing pin and is used to lift the firing pin to store energy in the torsion spring.

[0011] In the embodiments of this application, a torsion spring is used as the driving member to drive the firing pin to move towards the muzzle of the gun body, that is, the torsion spring is used to drive the firing pin to extend to achieve the effect of hitting the nail. In this way, the structure is simple, and the cost of the torsion spring is low, which is convenient for disassembly, replacement, and thus helps to reduce the use cost of the nail gun. Moreover, since the torsion spring has the effect of absorbing vibration and impact, it can play a role in buffering shock and reducing vibration during the process of driving the firing pin to move, and there will be no problem of tremor, thereby improving the user experience of the nail gun. Description of the Drawings

[0012] Figure 1One of the front views of the nail gun disclosed in the embodiments of the present application (part of the gun body is hidden);

[0013] Figure 2 Isometric view of the nail gun disclosed in the embodiments of the present application (part of the gun body, lifting mechanism, and drive motor are hidden);

[0014] Figure 3 Another front view of the nail gun disclosed in the embodiments of the present application (state diagrams when the sliding member is in two positions);

[0015] Figure 4 Connection relationship diagram of the torsion spring and the firing pin disclosed in the embodiments of the present application;

[0016] Figure 5 One of the isometric views of the torsion spring disclosed in the embodiments of the present application;

[0017] Figure 6 Another isometric view of the torsion spring disclosed in the embodiments of the present application;

[0018] Figure 7 Rear view of the nail gun disclosed in the embodiments of the present application;

[0019] Figure 8 Is Figure 7 Cross-sectional view taken along the A-A direction in ;

[0020] Figure 9 One of the connection relationship diagrams of the guide rail cavity and the limiting member disclosed in the embodiments of the present application;

[0021] Figure 10 Isometric view of the guide rail cavity disclosed in the embodiments of the present application;

[0022] Figure 11 Isometric view of the limiting member disclosed in the embodiments of the present application;

[0023] Figure 12 Top view of the limiting member disclosed in the embodiments of the present application;

[0024] Figure 13 Is Figure 12 Cross-sectional view taken along the B-B direction in ;

[0025] Figure 14 Connection relationship of the guide rail cavity and the limiting member disclosed in the embodiments of the present application Figure Two ;

[0026] Figure 15 Is Figure 14 Cross-sectional view taken along the C-C direction in ;

[0027] Figure 16 Bottom view of the limiting member disclosed in the embodiments of the present application;

[0028] Figure 17 is Figure 16 A cross-sectional view in the D-D direction;

[0029] Figure 18 is the front view of the connecting seat disclosed in the embodiment of the present application;

[0030] Figure 19 is the connection relationship diagram of the drive motor, lifting mechanism, locking member and unlocking drive assembly disclosed in the embodiment of the present application.

[0031] Explanation of reference numerals:

[0032] 100 - gun body; 200 - firing pin; 300 - torsion spring; 310 - torsion spring body; 320 - first torsion arm;

[0033] 330 - second torsion arm; 340 - connecting seat; 341 - first relief groove; 342 - second relief groove;

[0034] 350 - rolling element; 360 - arc-shaped convex portion; 370 - fixed seat; 400 - fixed shaft; 500 - guide rail cavity;

[0035] 510 - strip hole; 520 - limiting connection portion; 521 - connection hole; 600 - sliding member; 610 - sliding portion;

[0036] 611 - chute; 620 - firing pin connection portion; 621 - connection groove; 630 - wear-resistant sleeve; 640 - fixing pin;

[0037] 650 - connection pin; 700 - drive motor; 800 - lifting mechanism; 810 - rotating member; 820 - lifting pin;

[0038] 830 - transmission; 840 - first bearing; 850 - second bearing; 860 - second transmission gear;

[0039] 900 - fixed bracket; 910 - fixed sleeve; 920 - bracket; 1000 - limiting member; 1010 - first part;

[0040] 1011 - first through hole; 1020 - second part; 1021 - second through hole; 1030 - third part;

[0041] 1031 - third through hole; 1100 - locking member; 1200 - elastic drive member; 1300 - unlocking drive assembly;

[0042] 1310 - cam member; 1320 - first transmission gear. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0044] The terms "first", "second", "third", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", "third", etc. are usually of the same type, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the associated objects before and after are in an "or" relationship.

[0045] Next, in conjunction with the accompanying drawings, the nail gun provided in the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0046] Reference Figures 1 - 19 , a nail gun provided in an embodiment of the present application may include a gun body 100, a firing pin 200, a torsion spring 300, and a lifting mechanism 800.

[0047] Among them, the firing pin 200 is movably disposed in the gun body 100, the torsion spring 300 is located in the gun body 100, one end of the torsion spring 300 is directly or indirectly connected to the firing pin 200, and is used to drive the firing pin 200 to extend out to achieve the purpose of driving a nail.

[0048] Specifically, the torsion spring body 310 of the torsion spring 300 is rotatably connected to the gun body 100, the first torsion arm 320 of the torsion spring 300 can be connected to the firing pin 200, the second torsion arm 330 of the torsion spring 300 can be connected to the gun body 100, and the torsion spring 300 can be used to drive the firing pin 200 to move toward the muzzle of the gun body 100.

[0049] And the lifting mechanism 800 can be connected to the firing pin 200 and is used to lift the firing pin 200 to store energy in the torsion spring 300 to ensure that the torsion spring 300 can drive the firing pin 200 to extend out.

[0050] The torsion spring 300 is used as a driving member to drive the firing pin 200 to move towards the muzzle of the gun body 100, that is, the torsion spring 300 is used to drive the firing pin 200 to extend, so as to achieve the effect of driving the nail. In this way, the structure is simple, and the cost of the torsion spring 300 is relatively low, which is convenient for disassembly and replacement. Furthermore, it is beneficial to reduce the use cost of the nail gun. Moreover, since the torsion spring 300 has the effect of absorbing vibration and impact, it can play a role in buffering shock and reducing vibration during the process of driving the firing pin 200 to move, and the problem of tremor will not occur, thereby improving the use experience of the nail gun.

[0051] In an alternative embodiment of the present application, a guide rail cavity 500 may be provided on the gun body 100. The axis of the guide rail cavity 500 is parallel to the moving direction of the firing pin 200. A sliding member 600 may be provided on the first torsion arm 320. The firing pin 200 may be connected to the sliding member 600, and the sliding member 600 is slidably disposed in the guide rail cavity 500. In this way, the sliding fit between the guide rail cavity 500 and the sliding member 600 can guide the movement of the firing pin 200, and it can prevent the firing pin 200 from being deflected due to the rotational action of the first torsion arm 320 and thus unable to strike the fixing nail.

[0052] In other embodiments, the guide rail cavity 500 may not be provided on the gun body 100, the sliding member 600 may not be provided on the first torsion arm 320, and the first torsion arm 320 may be directly connected to the firing pin 200.

[0053] Optionally, in order to facilitate the connection between the first torsion arm 320 and the sliding member 600, a strip-shaped hole 510 may be provided on the cavity wall of the guide rail cavity 500 to facilitate the first torsion arm 320 to extend into the guide rail cavity 500 to be connected to the sliding member 600. Here, the length direction of the strip-shaped hole 510 is consistent with the moving direction of the firing pin 200, and the length of the strip-shaped hole 510 may be the same as the length of the guide rail cavity 500.

[0054] In an alternative embodiment, a rolling member 350 may be provided at one end of the first torsion arm 320 away from the torsion spring body 310. A chute 611 may be provided on the sliding member 600. The rolling member 350 may be disposed in the chute 611, and the rolling member 350 can slide relative to the chute 611 in a direction perpendicular to the moving direction of the firing pin 200. In this way, when the first torsion arm 320 rotates, the relative sliding between the rolling member 350 and the chute 611 can convert the rotation of the first torsion arm 320 into a linear motion of the sliding member 600 to ensure that the firing pin 200 can move linearly. Moreover, the relative sliding between the rolling member 350 and the chute 611 is beneficial to reducing the friction force between the first torsion arm 320 and the chute 611, so as to reduce the mutual wear between the first torsion arm 320 and the sliding member 600, and further beneficial to improving the service life of the first torsion arm 320 and the sliding member 600.

[0055] Of course, a rolling member 350 may not be provided at the end of the first torsion arm 320 away from the torsion spring body 310. Specifically, the end of the first torsion arm 320 away from the torsion spring body 310 may directly extend into the chute 611 and be slidable relative to the chute 611.

[0056] In an alternative embodiment, a connection seat 340 may be provided at the end of the first torsion arm 320 away from the torsion spring body 310, and the rolling member 350 may be provided at the end of the connection seat 340 away from the first torsion arm 320. And, as Figure 18 shown, a first avoidance groove 341 and a second avoidance groove 342 may be provided on the connection seat 340. The first avoidance groove 341 may be provided on the side wall of the connection seat 340 close to the firing pin 200 so that the first avoidance groove 341 can avoid the groove wall of the chute 611 close to the firing pin 200, and the second avoidance groove 342 may be provided on the side wall of the connection seat 340 away from the firing pin 200 so that the second avoidance groove 342 can avoid the groove wall of the chute 611 away from the firing pin 200. In this way, during the movement of the firing pin 200, the connection seat 340 will not hinder the rotation of the first torsion arm 320, and there will be no mutual wear between the connection seat 340 and the sliding member 600.

[0057] In other embodiments, the first avoidance groove 341 and the second avoidance groove 342 may not be provided on the connection seat 340.

[0058] Optionally, an arc-shaped convex portion 360 may further be provided at the end of the connection seat 340 away from the first torsion arm 320. The arc-shaped convex portion 360 may be located on the side of the rolling member 350 away from the firing pin 200, and the arc-shaped convex portion 360 may contact the groove wall of the chute 611. In this way, during the retraction of the firing pin 200, the arc-shaped convex portion 360 may contact the groove wall of the chute 611 away from the firing pin 200 and push the sliding member 600 to move in a direction away from the muzzle. And by the contact between the arc-shaped convex portion 360 and the groove wall of the chute 611, the contact area between the connection seat 340 and the groove wall of the chute 611 can be reduced, and thus the friction between the connection seat 340 and the groove wall of the chute 611 can be reduced.

[0059] In other ways, the arc-shaped convex portion 360 may not be provided at the end of the connection seat 340 away from the first torsion arm 320.

[0060] Of course, a roller may further be provided at the end of the connection seat 340 away from the first torsion arm 320. The roller may be located on the side of the rolling member 350 away from the firing pin 200, and the roller may contact the groove wall of the chute 611. In this way, the friction between the connection seat 340 and the chute 611 can be further reduced.

[0061] Further optionally, a wear-resistant sleeve 630 may be provided in the chute 611. The wear-resistant sleeve 630 may be connected to the groove wall of the chute 611. The rolling member 350 may be located within the wear-resistant sleeve 630, and the rolling member 350 may slide relative to the wear-resistant sleeve 630 in a direction perpendicular to the moving direction of the firing pin 200. In this way, the wear between the chute 611 and the rolling member 350 can be reduced, so as to improve the service life of the sliding member 600 and the rolling member 350, and the size of the chute 611 can be prevented from becoming larger and larger.

[0062] Of course, the wear-resistant sleeve 630 may not be provided in the chute 611.

[0063] In this embodiment, the wear-resistant sleeve 630 may be connected to the groove wall of the chute 611 through a fixing pin 640. Specifically, a first fixing hole is provided on the sliding member 600, a second fixing hole is provided on the wear-resistant sleeve 630, the second fixing hole is opposite to the first fixing hole, and the fixing pin 640 can pass through the first fixing hole and be connected to the second fixing hole.

[0064] Here, a notch may be provided on the wear-resistant sleeve 630 to reduce the weight of the wear-resistant sleeve 630. The wear-resistant sleeve 630 may be made of stainless steel.

[0065] In an alternative embodiment of the present application, a limiting member 1000 may be provided in the gun body 100. The limiting member 1000 may be located between the guide rail cavity 500 and the muzzle. The limiting member 1000 may be provided with a through hole, and the through hole may be coaxially communicated with the guide rail cavity 500. The firing pin 200 may pass through the through hole, and the limiting member 1000 and the sliding member 600 are in limiting cooperation in the direction from the guide rail cavity 500 to the muzzle. In this way, the limiting member 1000 can limit the maximum extended length of the firing pin 200.

[0066] In other embodiments, the limiting member 1000 may not be provided in the gun body 100.

[0067] In an alternative embodiment, the limiting member 1000 may include a first portion 1010 and a second portion 1020. The first portion 1010 is connected to the second portion 1020. The first portion 1010 may be provided with a first through hole 1011, the second portion 1020 may be provided with a second through hole 1021, and the through hole includes the first through hole 1011 and the second through hole 1021, that is, the firing pin 200 can pass through the first through hole 1011 and the second through hole 1021.

[0068] In the direction from the guide rail cavity 500 to the muzzle, the cross-sectional area of the first through hole 1011 may gradually increase, and the cross-sectional area of the second through hole 1021 is greater than or equal to the maximum cross-sectional area of the first through hole 1011.

[0069] The slider 600 may include a sliding portion 610 and a firing pin connecting portion 620. The firing pin connecting portion 620 may be connected to the sliding portion 610, and the firing pin connecting portion 620 may be connected to the firing pin 200. The sliding portion 610 may be slidably connected to the guide rail cavity 500. The firing pin connecting portion 620 may pass through the first through hole 1011, and the sliding portion 610 may be in limit cooperation with the first part 1010 in the direction from the guide rail cavity 500 to the muzzle.

[0070] In this way, the sliding portion 610 and the first part 1010 are in limit cooperation in the muzzle direction of the guide rail cavity 500, which can enhance the impact resistance of the nail gun. And during the retraction process of the firing pin 200, the firing pin connecting portion 620 is not likely to touch the inner wall of the limiting member 1000, which is conducive to improving the service life of the limiting member 1000.

[0071] In other embodiments, along the direction from the guide rail cavity 500 to the muzzle, the cross-sectional areas of the first through hole 1011 and the second through hole 1021 are the same.

[0072] Optionally, the firing pin 200 is connected to the firing pin connecting portion 620 through a connecting pin 650. Specifically, a connecting groove 621 may be provided on the firing pin connecting portion 620. The firing pin 200 is inserted into the connecting groove 621, and a through hole penetrating the firing pin connecting portion 620 is provided on the firing pin connecting portion 620. The axis of the through hole is perpendicular to the moving direction of the firing pin 200. An installation hole opposite to the through hole is provided on the firing pin 200. The connecting pin 650 can pass through the through hole and the installation hole to connect the firing pin connecting portion 620 and the firing pin 200.

[0073] In an alternative embodiment, a limiting connecting portion 520 may be provided at one end of the guide rail cavity 500 close to the muzzle. The limiting connecting portion 520 may be provided with a connecting hole 521, and the connecting hole 521 may communicate with the inner cavity of the guide rail cavity 500. The limiting member 1000 may further include a third part 1030. The third part 1030 may be provided with a third through hole 1031. The through hole may include the third through hole 1031. The third part 1030 may be located on the side of the first part 1010 close to the guide rail cavity 500.

[0074] Along the direction from the guide rail cavity 500 to the muzzle, the cross-sectional area of the connecting hole 521 gradually increases. Along the direction from the guide rail cavity 500 to the muzzle, the cross-sectional area of the third part 1030 gradually increases. And the third part 1030 is located in the connecting hole 521, and the outer shell of the third part 1030 may be in contact with the hole wall of the connecting hole 521. In this way, the connection area between the limiting member 1000 and the guide rail cavity 500 can be increased, and the connection stability between the limiting member 1000 and the guide rail cavity 500 can be improved.

[0075] Here, the cross-section may be perpendicular to the moving direction of the firing pin 200.

[0076] Of course, the end of the guide rail cavity 500 close to the muzzle may not be provided with the limiting connection part 520, and the limiting member 1000 may not include the third part 1030. Specifically, the end of the guide rail cavity 500 close to the muzzle directly abuts against the end of the first part 1010 away from the second part 1020.

[0077] In an alternative embodiment of the present application, a fixed shaft 400 may be provided in the gun body 100, and the nail gun may include at least two torsion springs 300. The torsion spring bodies 310 of the torsion springs 300 may all be sleeved on the fixed shaft 400, and the first torsion arms 320 of the torsion springs 300 may all be connected to the firing pin 200. In this way, the driving force of the nail gun can be improved, and thus the nail driving effect can be improved.

[0078] The nail gun may further include a fixed seat 370. The fixed seat 370 may be connected to the gun body 100, and the second torsion arms 330 of the torsion springs 300 may all be connected to the fixed seat 370. In this way, the second torsion arms 330 of the torsion springs 300 can be connected into one body through the fixed seat 370, which can not only simplify the connection structure between the second torsion arms 330 of the torsion springs 300 and the gun body 100, but also make the acting forces of the second torsion arms 330 of the torsion springs 300 concentrated.

[0079] In other embodiments, the nail gun may include only one torsion spring 300.

[0080] In this embodiment, the nail gun may include two torsion springs 300. The first torsion arms 320 of the two torsion springs 300 are located between the second torsion arms 330 of the two torsion springs 300, and the second torsion arms 330 of the two torsion springs 300 are both connected to the fixed seat 370. In this way, it is beneficial to make the sliding member 600 stress balanced.

[0081] In an alternative embodiment, the nail gun may further include a driving motor 700. The driving motor 700 may be connected to the lifting mechanism 800 to drive the lifting mechanism 800 to rotate, so as to drive the firing pin 200 to move away from the muzzle, realizing the lifting of the firing pin 200.

[0082] The lifting mechanism 800 may include a rotating member 810 and a lifting pin 820. The rotating member 810 may be connected to the driving motor 700, the lifting pin 820 may be disposed on the rotating member 810, and driving the rotating member 810 to rotate by the driving motor 700 can drive the lifting pin 820 to rotate. A plurality of teeth may be provided on the edge of the firing pin 200. The plurality of teeth may be distributed along the moving direction of the firing pin 200, and the lifting pin 820 may be connected to any one of the teeth. When the driving motor 700 drives the rotating member 810 to rotate, the lifting pin 820 is connected to any one of the teeth. As the rotating member 810 rotates, the lifting pin 820 can drive the firing pin 200 to move away from the muzzle, and then the sliding member 600 compresses the first torsion arm 320, causing the torsion spring 300 to store energy.

[0083] Optionally, the lifting mechanism 800 may include a plurality of lifting pins 820, and the plurality of lifting pins 820 may be sequentially connected to a plurality of teeth, which is conducive to improving the lifting efficiency. Moreover, the plurality of lifting pins 820 may all be located on the same side of the first plane of the rotating member 810, and the first plane coincides with the axis of the rotating member 810. In this way, when driving the firing pin 200 to extend to push out the fixing nail, the driving motor 700 can drive the rotating member 810 to rotate, so that the plurality of lifting pins 820 are all away from the firing pin 200, and the lifting pins 820 will not hinder the movement of the firing pin 200, thereby ensuring that the firing pin 200 can extend normally.

[0084] Here, the lifting mechanism 800 may include two lifting pins 820, or three or more lifting pins 820.

[0085] Of course, the lifting mechanism 800 may only include one lifting pin 820. Alternatively, the lifting mechanism 800 includes a plurality of lifting pins 820, and the plurality of lifting pins 820 are evenly distributed along the circumferential direction of the rotating member 810.

[0086] In this embodiment, the lifting mechanism 800 may further include a drive shaft, the drive shaft is connected to the output shaft of the driving motor 700, and the rotating member 810 is connected to the drive shaft.

[0087] Optionally, the lifting mechanism 800 may further include a transmission 830. A motor base is provided on the driving motor 700. The transmission 830 may be provided above the motor base and connected to the motor base by screws. Moreover, a motor gear is provided on the output shaft of the driving motor 700. The motor gear may be located within the motor base, and the motor gear is connected to the transmission 830. The drive shaft is connected to the output end of the transmission 830. In addition, a first bearing 840 and a second bearing 850 are provided between the rotating member 810 and the transmission 830. The first bearing 840 and the second bearing 850 are respectively used for rotatably connecting the gun body 100 and the drive shaft. Here, in order to prevent the first bearing 840 and the second bearing 850 from axially moving, a shaft retaining ring is further provided on the drive shaft, and the shaft retaining ring may be located on the side of the second bearing 850 away from the driving motor 700. In order to prevent the rotating member 810 from contacting the second bearing 850 and wearing, a blocking member is provided between the rotating member 810 and the second bearing 850. The blocking member is sleeved on the drive shaft, and the blocking member may be located above the shaft retaining ring.

[0088] In an optional embodiment, the nail gun may further include a locking member 1100 and an elastic driving member 1200, wherein the locking member 1100 is rotatably disposed on the gun body 100, and when the locking member 1100 is in the working position, the locking member 1100 is connected to the firing pin 200 to limit the firing pin 200 from moving toward the muzzle of the nail gun, so that the firing pin 200 cannot eject the fixed nail; when the locking member 1100 is in the non-working position, the locking member 1100 is separated from the firing pin 200, so that the firing pin 200 can move toward the muzzle, so that when the fixed nail needs to be ejected, the locking member 1100 will not hinder the firing pin 200, so that the nail gun can work normally. The elastic driving member 1200 may be disposed on the gun body 100, and the elastic driving member 1200 may be connected to the locking member 1100, and is used to drive the locking member 1100 to rotate to the working position.

[0089] The nail gun may further include an unlocking drive assembly 1300 , which may be disposed on the gun body 100 and used to drive the locking member 1100 to rotate to a non-working position so that the locking member 1100 is separated from the firing pin 200 , at which time the locking member 1100 no longer restricts the firing pin 200 .

[0090] Optionally, the unlocking drive assembly 1300 may include a cam member 1310 and an unlocking drive member. The cam member 1310 may be rotatably disposed on the gun body 100. The unlocking drive member may be connected to the cam member 1310, and the unlocking drive member may be used to drive the cam member 1310 to rotate. When the firing pin 200 moves toward the muzzle, the unlocking drive member may drive the cam member 1310 to rotate to push the locking member 1100 to rotate to a non-working position.

[0091] The unlocking drive member may include a first transmission gear 1320, and the driving motor 700 is connected to a second transmission gear 860. Here, the second transmission gear 860 may be connected to the driving shaft, and the first transmission gear 1320 may mesh with the second transmission gear 860 to achieve a transmission connection between the unlocking drive member and the driving motor 700.

[0092] In an optional embodiment, a fixed bracket 900 is also provided in the gun body 100, and the fixed bracket 900 includes a fixed sleeve 910 and a bracket 920, and the bracket 920 is connected to the fixed sleeve 910 as an integrated structure, and the bracket 920 is located on the side of the fixed sleeve 910 away from the guide rail cavity 500, the limit member 1000 is located in the fixed sleeve 910 and abuts against the fixed bracket 900, and the fixed seat 370 abuts against the side of the fixed sleeve 910 close to the guide rail cavity 500.

[0093] Here, the unlocking drive assembly 1300 and the locking member 1100 described above may be located within the bracket 920, and the first transmission gear 1320 is rotatably disposed on the bracket 920, the locking member 1100 is rotatably disposed on the bracket 920, and the elastic drive member 1200 may be connected to the bracket 920. In this way, the bracket 920 can provide an installation space for the locking member 1100 and the unlocking drive assembly 1300.

[0094] In this embodiment, an external thread may be provided on the outer wall of the guide rail cavity 500, and the external thread is disposed close to the limiting member 1000. The fixing sleeve 910 may be sleeved on a part of the outer side of the guide rail cavity 500 and threadedly connected to the guide rail cavity 500. Moreover, a convex portion that abuts against the inner wall of the fixing sleeve 910 is provided on the outer wall of the limiting member 1000, so that the limiting member 1000 and the fixing sleeve 910 are circumferentially relatively fixed. In this way, the connection stability between the limiting member 1000 and the guide rail cavity 500 can be further improved.

[0095] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A nail gun, characterized in that: include: Gun body (100); A firing pin (200) is movably disposed in the gun body (100); a torsion spring (300) located in the gun body (100), one end of the torsion spring (300) being directly or indirectly connected to the firing pin (200) and used to drive the firing pin (200) to extend; A lifting mechanism (800) can be connected to the striker (200) and is used to lift the striker (200) so as to allow the torsion spring (300) to store energy.

2. The nail gun according to claim 1, characterized in that: The torsion spring body (310) of the torsion spring (300) is rotatably connected to the gun body (100), the first torsion arm (320) of the torsion spring (300) is connected to the firing pin (200), and the second torsion arm (330) of the torsion spring (300) is connected to the gun body (100), and the torsion spring (300) is used to drive the firing pin (200) to move toward the muzzle of the gun body (100).

3. The nail gun according to claim 2, characterized in that: The gun body (100) is provided with a guide rail cavity (500), the axis of which is parallel to the moving direction of the striker (200), the first torsion arm (320) is provided with a sliding member (600), the striker (200) is connected to the sliding member (600), and the sliding member (600) is slidably arranged in the guide rail cavity (500).

4. The nail gun according to claim 3, characterized in that: A rolling member (350) is provided at one end of the first torsion arm (320) away from the torsion spring body (310), a sliding groove (611) is provided on the sliding member (600), the rolling member (350) is arranged in the sliding groove (611), and the rolling member (350) can slide relative to the sliding groove (611) in a direction perpendicular to the moving direction of the striker (200).

5. The nail gun according to claim 4, characterized in that: A connecting seat (340) is provided at one end of the first torsion arm (320) away from the torsion spring body (310); the rolling element (350) is provided at one end of the connecting seat (340) away from the first torsion arm (320); a first avoidance groove (341) and a second avoidance groove (342) are provided on the connecting seat (340); the first avoidance groove (341) is provided on a side wall of the connecting seat (340) close to the striker (200); and the second avoidance groove (342) is provided on a side wall of the connecting seat (340) away from the striker (200); And / or, a wear-resistant sleeve (630) is arranged in the slide groove (611), the wear-resistant sleeve (630) is connected to the groove wall of the slide groove (611), the rolling element (350) is located in the wear-resistant sleeve (630), and the rolling element (350) can slide relative to the wear-resistant sleeve (630) in a direction perpendicular to the moving direction of the striker (200).

6. The nail gun according to claim 5, characterized in that: An arc-shaped protrusion (360) is also provided at one end of the connecting seat (340) away from the first torsion arm (320), the arc-shaped protrusion (360) is located on a side of the rolling element (350) away from the striker (200), and the arc-shaped protrusion (360) can contact the groove wall of the sliding groove (611).

7. The nail gun according to claim 3, characterized in that: A limit member (1000) is provided in the gun body (100), the limit member (1000) is located between the guide rail cavity (500) and the muzzle, the limit member (1000) is provided with a through hole, the through hole is coaxially connected to the guide rail cavity (500), the firing pin (200) passes through the through hole, and the limit member (1000) cooperates with the sliding member (600) in a limit position in a direction from the guide rail cavity (500) to the muzzle.

8. The nail gun according to claim 7, characterized in that: The limiting member (1000) comprises a first part (1010) and a second part (1020) connected to the first part (1010); the first part (1010) is provided with a first through hole (1011); the second part (1020) is provided with a second through hole (1021); the through holes include the first through hole (1011) and the second through hole (1021); along the direction from the guide rail cavity (500) to the muzzle, the cross-sectional area of ​​the first through hole (1011) gradually increases, and the cross-sectional area of ​​the second through hole (1021) is greater than or equal to the maximum cross-sectional area of ​​the first through hole (1011); The sliding member (600) includes a sliding portion (610) and a firing pin connecting portion (620) connected to the sliding portion (610), the firing pin connecting portion (620) is connected to the firing pin (200), the sliding portion (610) is slidably connected to the guide rail cavity (500), the firing pin connecting portion (620) can pass through the first through hole (1011), and the sliding portion (610) and the first portion (1010) are matched in an upper limit position in the direction from the guide rail cavity (500) to the muzzle.

9. The nail gun according to claim 8, characterized in that: A limit connection part (520) is provided at one end of the guide rail cavity (500) close to the muzzle, and the limit connection part (520) is provided with a connection hole (521), and the connection hole (521) is communicated with the inner cavity of the guide rail cavity (500), and the cross-sectional area of ​​the connection hole (521) gradually increases along the direction from the guide rail cavity (500) to the muzzle, and the cross-sectional area is perpendicular to the moving direction of the firing pin (200); The limiting member (1000) further comprises a third part (1030), the third part (1030) being provided with a third through hole (1031), the through hole further comprising the third through hole (1031), the third part (1030) being located on a side of the first part (1010) close to the guide rail cavity (500), and the cross-sectional area of ​​the third part (1030) gradually increases along the direction from the guide rail cavity (500) to the muzzle, and the third part (1030) being located in the connecting hole (521), and the outer wall of the third part (1030) being in contact with the hole wall of the connecting hole (521).

10. The nail gun according to claim 1, characterized in that: A fixed shaft (400) is arranged in the gun body (100), and the nail gun comprises at least two torsion springs (300), a torsion spring body (310) of each torsion spring (300) is sleeved on the fixed shaft (400), and a first torsion arm (320) of each torsion spring (300) is connected to the firing pin (200); The nail gun further comprises a fixing seat (370), wherein the fixing seat (370) is connected to the gun body (100), and the second torsion arm (330) of each torsion spring (300) is connected to the fixing seat (370).

Images