Anti-pinch structure of rivet gun

Abstract

The utility model discloses an anti-pinch structure of a rivet gun, and relates to the technical field of rivet guns. An anti-pinch structure of a rivet gun comprises a gun body, an air cylinder is arranged on the gun body, the air cylinder is connected with an air supply pipe, the air supply pipe is connected with an air source, the air cylinder is further provided with a rivet feeding mechanism, and the air source is used for supplying air to the air cylinder through the air supply pipe so that the rivet feeding mechanism can be close to or away from the gun body. The rivet feeding mechanism is configured to loosen the rivet when approaching the gun body and clamp the rivet when being far away from the gun body; a pressure reducing valve is arranged on the air supply pipe and used for adjusting the air supply pressure of the air source to the air cylinder. The damage of the nail feeding mechanism to a user is reduced as much as possible.

Description

Technical Field

[0001] The present application relates to the field of rivet guns, and in particular to an anti-pinch finger structure of a rivet gun. Background Art

[0002] A rivet gun, also known as a rivet gun, is a tool used for fastening connections. It is mainly used for riveting metal plates such as aluminum, iron, and stainless steel. There are many types of rivet guns. According to the power type, rivet guns can be divided into several types, such as pneumatic, electric, and manual. Among them, pneumatic and electric rivet guns are the most widely used.

[0003] A rivet gun is currently disclosed, which includes a gun body, a driving member is provided on the gun body, and a nail feeding mechanism is provided on the driving member. The driving member can drive the nail feeding mechanism to move back and forth, and the nail feeding mechanism can loosen or clamp the rivet when it moves.

[0004] With respect to the above-mentioned related technologies, the inventors believe that there are the following defects: if the user accidentally extends his hand between the nail feeding mechanism and the gun body, the hand may be clamped between the nail feeding mechanism and the gun body when the nail feeding mechanism moves, which may cause great personal injury to the user. Utility Model Content

[0005] In order to minimize the damage caused to the user by the nail feeding mechanism, the present application provides a finger pinching prevention structure of a nail pulling gun.

[0006] The anti-pinch finger structure of a rivet gun provided in the present application adopts the following technical solution:

[0007] A finger-pinching prevention structure for a rivet gun comprises a gun body, wherein a cylinder is provided on the gun body, wherein the cylinder is connected to an air supply pipe, wherein the air supply pipe is connected to an air source, and wherein a nail-feeding mechanism is also provided on the cylinder. The air source is used to supply air to the cylinder through the air supply pipe so that the nail-feeding mechanism is moved close to or away from the gun body, and wherein the nail-feeding mechanism is configured to loosen the rivet when it is close to the gun body and to clamp the rivet when it is away from the gun body; and wherein a pressure reducing valve is provided on the air supply pipe, wherein the pressure reducing valve is used to adjust the air supply pressure of the air source to the cylinder.

[0008] By adopting the above technical solution, the air source can supply air to the cylinder through the air supply pipe so that the nail feeding mechanism can be moved close to or away from the gun body for riveting; by controlling the opening of the pressure reducing valve itself to reduce the air supply to the cylinder, the movement speed of the output end of the cylinder is slowed down, and only a small resistance needs to be applied to the output end of the cylinder to stop the output end of the cylinder. The above design can minimize the damage caused to the user by the nail feeding mechanism.

[0009] In a specific possible implementation scheme, the nail feeding mechanism includes a connecting block, the connecting block is arranged on the output end of the cylinder, the connecting block is rotatably provided with a first clamping clamp and a second clamping clamp, and the first clamping clamp and the second clamping clamp are both provided with a torsion spring connected to the connecting block; the nail feeding mechanism also includes a support block arranged on the gun body;

[0010] When the cylinder drives the first clamp and the second clamp to approach the gun body, the support block causes the first clamp and the second clamp to rotate, and the first clamp and the second clamp loosen the rivet; when the cylinder drives the first clamp and the second clamp away from the gun body, the first clamp and the second clamp are reset and clamp the rivet under the action of the torsion spring.

[0011] By adopting the above technical solution, the cylinder can drive the connecting block to approach or move away from the gun body; under normal conditions, the rivet is placed between the first clamping clamp and the second clamping clamp, and the first clamping clamp and the second clamping clamp clamp the rivet; when the connecting block approaches the gun body, the support block causes the first clamping clamp and the second clamping clamp to rotate, and the first clamping clamp and the second clamping clamp release the rivet to complete the nail feeding; when the connecting block moves away from the gun body, the first clamping clamp and the second clamping clamp reset under the action of the torsion spring.

[0012] In a specific possible implementation manner, the support block includes a main body portion and a cone portion, the main body portion is arranged on the gun body, and the cone portion is arranged at one end of the main body portion close to the first clamping forceps.

[0013] In a specific possible implementation manner, the first clamping forceps comprises a first clamp body rotatably arranged on a connecting block, and a roller is rotatably arranged on one end of the first clamp body close to the cone portion.

[0014] By adopting the above technical solution, as the connecting block drives the first clamping pliers to move, the roller will roll on the cone portion, and at this time the first clamping pliers will rotate.

[0015] In a specific possible implementation manner, a cover plate is provided on the gun body, a movement area is formed between the nail feeding mechanism and the gun body, and the cover plate is located above the movement area.

[0016] By adopting the above technical solution, the cover plate can make it difficult for the user's hand to reach between the nail feeding mechanism and the gun body, thereby preventing the nail feeding mechanism from causing harm to the user.

[0017] In a specific feasible implementation scheme, a mounting groove is opened on the connecting block, and the mounting groove includes a step portion on the inner wall. At least two nuts are threadedly connected to the cylinder output end, wherein the two nuts are respectively located on both sides of the step portion in the movement direction of the cylinder output end, and each of the nuts is against the step portion.

[0018] By adopting the above technical solution, the two nuts can be removed, and the connecting block can be separated from the cylinder.

[0019] In a specific possible implementation scheme, the nail feeding mechanism is also connected to a nail feeding tube, and the nail feeding tube is used to feed rivets to the nail feeding mechanism.

[0020] In a specific implementation scheme, a through mounting hole is provided on the gun body, a guide tube is provided on the inner wall of the mounting hole, a guide rod is provided on the nail feeding mechanism, the guide rod is inserted into the guide tube and the outer wall of the guide rod is in contact with the inner wall of the guide tube.

[0021] By adopting the above technical solution, the movement of the cylinder output end can be guided.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The air source can supply air to the cylinder through the air supply pipe so that the nail feeding mechanism can be moved close to or away from the gun body for riveting. By controlling the opening of the pressure reducing valve itself to reduce the air supply to the cylinder, the movement speed of the cylinder output end is slowed down. Only a small resistance needs to be applied to the cylinder output end to stop the cylinder output end. The above design can minimize the damage caused by the nail feeding mechanism to the user.

[0024] 2. The cylinder can drive the connection block to move closer to or farther from the gun body; in normal condition, the rivet is placed between the first clamp and the second clamp, and the first clamp and the second clamp clamp clamp the rivet; when the connection block approaches the gun body, the support block causes the first clamp and the second clamp to rotate, and the first clamp and the second clamp clamp release the rivet to complete the rivet feeding; when the connection block moves away from the gun body, the first clamp and the second clamp clamp reset under the action of the torsion spring;

[0025] 3. The cover plate can make it difficult for the user's hand to reach between the nail feeding mechanism and the gun body, thereby preventing the nail feeding mechanism from causing harm to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an anti-pinch finger structure of a rivet gun according to an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram used to illustrate a pressure reducing valve.

[0028] Figure 3 It is a structural schematic diagram for reflecting the nail feeding mechanism.

[0029] Figure 4 It is a schematic diagram for illustrating the structure of a scroll wheel.

[0030] Figure 5 yes Figure 1Enlarged view of part A.

[0031] Explanation of the reference numerals: 1. gun body; 11. mounting hole; 12. guide tube; 13. guide rod; 14. cover plate; 15. movement area; 2. cylinder; 3. nail feeding mechanism; 31. connecting block; 311. mounting groove; 312. step portion; 32. first clamping pliers; 321. first clamp body; 322. roller; 323. lower jaw; 33. second clamping pliers; 331. second clamp body; 332. rolling wheel; 333. upper jaw; 34. support block; 341. main body; 342. cone; 35. nail feeding tube; 4. nut; 5. air supply pipe; 51. pressure reducing valve; 6. air source. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application embodiment discloses a finger pinching prevention structure of a rivet gun. It is used to prevent fingers from being pinched when pulling rivets. Figure 1 and Figure 2 A finger-pinching prevention structure of a rivet gun includes a gun body 1, a cylinder 2 is provided on the gun body 1, the cylinder 2 is connected to an air supply pipe 5, the air supply pipe 5 is connected to an air source 6, a nail-feeding mechanism 3 is also provided on the cylinder 2, the air source 6 is used to supply air to the cylinder 2 through the air supply pipe 5 so that the nail-feeding mechanism 3 is close to or away from the gun body 1, and the nail-feeding mechanism 3 is configured to clamp the rivet under normal conditions, release the rivet when approaching the gun body 1, and restore to normal state and clamp the rivet again when away from the gun body 1.

[0034] By controlling the air source 6, the air cylinder 2 can be driven to work, thereby driving the nail feeding mechanism 3 to approach or move away from the gun body 1 to complete the riveting.

[0035] Reference Figure 2 A pressure reducing valve 51 is provided on the air supply pipe 5 , and the pressure reducing valve 51 is used to adjust the air supply pressure of the air source 6 to the cylinder 2 .

[0036] By controlling the opening of the pressure reducing valve 51 itself to reduce the air supply to the cylinder 2, the movement speed of the output end of the cylinder 2 is slowed down. At this time, only a small resistance needs to be applied to the output end of the cylinder 2 to stop the output end of the cylinder 2. In other words, the slower moving nail feeding mechanism 3 is not easy to pinch the hand, which minimizes the damage caused by the nail feeding mechanism 3 to the user.

[0037] Reference Figure 1 In order to make it difficult for the user's hand to reach between the connecting block 31 and the gun body 1, thereby preventing the connecting block 31 from pinching the hand. A cover plate 14 is provided on the gun body 1, and a movement area 15 is formed between the connecting block 31 and the gun body 1, and the cover plate 14 is located above the movement area 15.

[0038] Reference Figure 2 and Figure 3The nail feeding mechanism 3 includes a connecting block 31, which is arranged on the output end of the cylinder 2. A first clamping clamp 32 and a second clamping clamp 33 are rotatably provided on the connecting block 31. The first clamping clamp 32 and the second clamping clamp 33 are both provided with a torsion spring connected to the connecting block 31; the nail feeding mechanism 3 also includes a support block 34 provided on the gun body 1. When the cylinder 2 drives the first clamping clamp 32 and the second clamping clamp 33 to approach the gun body 1, the support block 34 causes the first clamping clamp 32 and the second clamping clamp 33 to rotate, and the first clamping clamp 32 and the second clamping clamp 33 loosen the rivet; when the cylinder 2 drives the first clamping clamp 32 and the second clamping clamp 33 away from the gun body 1, the first clamping clamp 32 and the second clamping clamp 33 are reset under the action of the torsion spring.

[0039] Reference Figure 3 and Figure 4 Specifically, the first clamping pliers 32 includes a first clamp body 321 rotatably arranged on the connecting block 31, a roller 322 is rotatably provided on one end of the first clamp body 321 close to the support block 34, and a lower jaw 323 is provided on the other end of the first clamp body 321; the second clamping pliers 33 include a second clamp body 331 rotatably arranged on the connecting block 31, a rolling wheel 332 is rotatably provided on one end of the second clamp body 331 close to the support block 34, and an upper jaw 333 is provided on the other end of the second clamp body 331; the first clamp body 321 and the second clamp body 331 are cross-arranged, and when the first clamp body 321 and the second clamp body 331 rotate in opposite directions, the lower jaw 323 and the upper jaw 333 close to clamp the rivet or separate to loosen the rivet.

[0040] Reference Figure 3 and Figure 4 The support block 34 includes a main body 341 and a cone 342. The main body 341 is arranged on the gun body 1, and the cone 342 is arranged at the left end of the main body 341. The upper jaw 333 is also connected to a nail feeding tube 35, which extends between the upper jaw 333 and the lower jaw 323 and is used to feed rivets between the upper jaw 333 and the lower jaw 323.

[0041] First, the nail feeding tube 35 feeds the rivet between the upper jaw 333 and the lower jaw 323, and then the cylinder 2 is driven to drive the connecting block 31 to move to the right, and the roller 322 and the rolling wheel 332 contact the cone 342 and roll on the outer wall of the cone 342, and under the action of the torsion spring, the roller 322 and the rolling wheel 332 will keep in contact with the cone 342, as the roller 322 and the rolling wheel 332 roll to the right, the lower jaw 323 and the upper jaw 333 separate so that the rivet can be fed out, and the nail feeding is completed, and then the cylinder 2 is driven to drive the connecting block 31 to move to the left, and the lower jaw 323 and the upper jaw 333 close and reset.

[0042] Reference Figure 4In order to guide the moving parts of the connecting block 31, a through mounting hole 11 is also opened on the gun body 1, and a guide tube 12 is provided on the inner wall of the mounting hole 11. The setting direction of the guide tube 12 is in the same direction as the movement direction of the output end of the cylinder 2. A guide rod 13 is provided on the connecting block 31, and the guide rod 13 is inserted into the guide tube 12 and the outer wall of the guide rod 13 is in contact with the inner wall of the guide tube 12.

[0043] Reference Figure 5 A mounting groove 311 is formed at the upper end of the connecting block 31, and the mounting groove 311 includes a step portion 312 on the inner wall. Two nuts 4 are threadedly connected to the output end of the cylinder 2, and the two nuts 4 are respectively located on the left and right sides of the step portion 312 in the movement direction of the output end of the cylinder 2, and each nut 4 is against the step portion 312.

[0044] The nut 4 can be removed so that the connecting block 31 together with the first clamping jaw 32 and the second clamping jaw 33 can be removed for maintenance.

[0045] The implementation principle of the anti-pinch finger structure of a rivet gun in the embodiment of the present application is:

[0046] First, the nail feeding tube 35 feeds the rivet between the upper jaw 333 and the lower jaw 323, and then the cylinder 2 is driven to drive the connecting block 31 to move to the right, and the roller 322 and the rolling wheel 332 contact the cone 342 and roll on the outer wall of the cone 342. As the roller 322 and the rolling wheel 332 roll to the right, the lower jaw 323 and the upper jaw 333 are separated so that the rivet can be fed out, and the nail feeding is completed. Then, the cylinder 2 is driven to drive the connecting block 31 to move to the left, and the lower jaw 323 and the upper jaw 333 are retracted and reset.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A finger-pinching prevention structure for a rivet gun, characterized in that: The invention comprises a gun body (1), wherein a cylinder (2) is provided on the gun body (1), wherein the cylinder (2) is connected to an air supply pipe (5), wherein the air supply pipe (5) is connected to an air source (6), wherein a nail feeding mechanism (3) is also provided on the cylinder (2), wherein the air source (6) is used to supply air to the cylinder (2) through the air supply pipe (5) so that the nail feeding mechanism (3) is moved close to or away from the gun body (1), wherein the nail feeding mechanism (3) is configured to release the rivet when it is close to the gun body (1) and to clamp the rivet when it is away from the gun body (1); and wherein a pressure reducing valve (51) is provided on the air supply pipe (5), wherein the pressure reducing valve (51) is used to adjust the air supply pressure of the air source (6) to the cylinder (2).

2. The finger-pinching prevention structure of a rivet gun according to claim 1, characterized in that: The nail feeding mechanism (3) comprises a connecting block (31), the connecting block (31) is arranged on the output end of the cylinder (2), a first clamping clamp (32) and a second clamping clamp (33) are rotatably arranged on the connecting block (31), and the first clamping clamp (32) and the second clamping clamp (33) are both provided with a torsion spring connected to the connecting block (31); the nail feeding mechanism (3) also comprises a supporting block (34) arranged on the gun body (1); When the cylinder (2) drives the first clamp (32) and the second clamp (33) to approach the gun body (1), the support block (34) causes the first clamp (32) and the second clamp (33) to rotate, and the first clamp (32) and the second clamp (33) loosen the rivet; when the cylinder (2) drives the first clamp (32) and the second clamp (33) to move away from the gun body (1), the first clamp (32) and the second clamp (33) are reset under the action of the torsion spring and clamp the rivet.

3. The finger-pinching prevention structure of a rivet gun according to claim 2, characterized in that: The support block (34) comprises a main body (341) and a cone (342); the main body (341) is arranged on the gun body (1); and the cone (342) is arranged at one end of the main body (341) close to the first clamp (32).

4. The finger pinching prevention structure of a rivet gun according to claim 3 is characterized in that: The first clamping pliers (32) comprises a first clamp body (321) rotatably arranged on the connecting block (31), and a roller (322) is rotatably arranged on one end of the first clamp body (321) close to the cone portion (342).

5. The finger pinching prevention structure of a rivet gun according to claim 2, characterized in that: A cover plate (14) is provided on the gun body (1), a movement area (15) is formed between the nail feeding mechanism (3) and the gun body (1), and the cover plate (14) is located above the movement area (15).

6. The finger pinching prevention structure of a rivet gun according to claim 2, characterized in that: The connection block (31) is provided with a mounting groove (311), the mounting groove (311) comprising a step portion (312) on the inner wall, and at least two nuts (4) are threadedly connected to the output end of the cylinder (2), wherein the two nuts (4) are respectively located on both sides of the step portion (312) in the direction of movement of the output end of the cylinder (2), and each nut (4) abuts against the step portion (312).

7. The finger pinching prevention structure of a rivet gun according to claim 1, characterized in that: The nail feeding mechanism (3) is also connected to a nail feeding tube (35), and the nail feeding tube (35) is used to feed rivets to the nail feeding mechanism (3).

8. The finger pinching prevention structure of a rivet gun according to claim 1, characterized in that: The gun body (1) is also provided with a through mounting hole (11), the inner wall of the mounting hole (11) is provided with a guide tube (12), the nail feeding mechanism (3) is provided with a guide rod (13), the guide rod (13) is inserted into the guide tube (12), and the outer wall of the guide rod (13) is in contact with the inner wall of the guide tube (12).

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