A fastening tool for use in confined spaces

Abstract

The invention discloses a fastening tool for narrow space, comprising a nail tube, a nail tube sleeve, a firing pin, a firing pin seat, a return spring, a control rod and a connecting piece, wherein the nail tube is fixed to the front end of the nail tube sleeve, and the firing pin seat is movably arranged at the rear end of the nail tube sleeve through the connecting piece; the firing pin is fixed to the firing pin seat, and the return spring sleeve is arranged on the firing pin; the control rod is fixed to the connecting piece and is perpendicular to the nail tube sleeve, and the control rod can control the firing pin seat to move in the nail tube sleeve through the connecting piece. The invention can realize effective fastening of nails in narrow space, and solves the technical problem that the existing nail shooter cannot be used in narrow space.

Description

Technical Field

[0001] The invention relates to the technical field of fastening, in particular to a fastening tool used in a narrow space. Background Art

[0002] The nail gun is an advanced modern fastening technology that can use nail bullets as power to effectively drive nails into the building. Compared with traditional methods such as pre-embedded fixing, hole pouring, bolt connection, welding, etc., it has many advantages. For example, it has its own power source and gets rid of the burden of wires and air ducts; it is convenient for on-site and high-altitude operations, fast operation, short construction period, and can greatly reduce the labor intensity of workers; it is reliable and safe, and can even solve some construction problems that were difficult to solve in the past.

[0003] The document with publication number CN108058139A discloses a new type of nail shooter, which includes a tubular shell, a frame assembly in the middle of the shell, a hammer drive assembly at one end of the shell, and a nail ejection assembly at the other end of the shell. The hammer drive assembly can drive the frame assembly to move, and after the frame assembly moves, the nail can be stably ejected from the nail ejection assembly. The nail shooter has the advantage of high stability. However, in fact, there are many construction sites with relatively narrow spaces such as grooves, and the groove width of such construction sites is less than 300mm. However, this type of nail shooter is a straight cylindrical structure, and its own length is more than 300mm, and the firing principle is to fire perpendicular to the base. When it is necessary to fasten the nails to the groove wall in a narrow space, it cannot be achieved using this type of nail shooter. Summary of the invention

[0004] The purpose of the present invention is to overcome the above problems existing in the prior art and provide a fastening tool for narrow spaces. The present invention can achieve effective fastening of nails in narrow spaces and solves the technical problem that existing nail shooters cannot be used in narrow spaces.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A fastening tool for narrow spaces, characterized in that it includes a nail tube, a nail tube sleeve, a firing pin, a firing pin seat, a return spring, a control rod and a connecting piece, wherein the nail tube is fixed to the front end of the nail tube sleeve, and the firing pin seat is movably arranged at the rear end of the nail tube sleeve through the connecting piece; the firing pin is fixed on the firing pin seat, and the return spring sleeve is arranged on the firing pin; the control rod is fixed on the connecting piece and is perpendicular to the nail tube sleeve, and the control rod can control the movement of the firing pin seat in the nail tube sleeve through the connecting piece.

[0007] The nail tube sleeve is provided with an initial firing position and a firing detonation position, and the control rod can control the firing pin seat to move between the initial firing position and the firing detonation position through a connecting piece.

[0008] The nail tube sleeve is provided with symmetrical limiting holes, and the connecting piece is movably arranged on the nail tube sleeve through the limiting holes.

[0009] The limiting hole includes a front arc-shaped end and a rear arc-shaped end. When the connecting piece is located at the rear arc-shaped end, the firing pin seat is located at the initial firing position; when the connecting piece is located at the front arc-shaped end, the firing pin seat is located at the firing and detonating position.

[0010] The connecting piece includes a fixing pin and a sleeve joint, the sleeve joint is movably sleeved on the nail tube sleeve, the control rod is vertically fixed on the sleeve joint, and the fixing pin passes through the sleeve joint and the firing pin seat through a limiting hole.

[0011] The fixing pin includes a rod body and a cap body. After the rod body passes through the sleeve joint and the firing pin seat through the limiting hole, the cap body is fixed to the two ends of the rod body.

[0012] The control rod is a hollow tube welded and fixed on the sleeve joint.

[0013] The nail tube is provided with a silencer sleeve fixedly connected to the nail tube sleeve, and the nail tube is fixed to the front end of the nail tube sleeve through the silencer sleeve.

[0014] The advantages of adopting the present invention are:

[0015] 1. Compared with the prior art, the present invention is equivalent to canceling the structure of the rear end part of the nail tube sleeve, which not only makes the structure simpler, but also effectively reduces the length of the nail shooter. Since the control rod is perpendicular to the nail tube sleeve, and the control rod can control the movement of the firing pin seat in the nail tube sleeve through the connecting piece, it is equivalent to improving the existing straight-cylindrical structure of the nail shooter into a vertical structure. Specifically, the present invention can control the overall length of the tool to less than 160 mm, so it is particularly suitable for construction in narrower places, and effectively solves the technical problem that the existing nail shooter cannot be used in narrow spaces. At the same time, the present invention also has the advantages of easy operation, time saving and labor saving.

[0016] 2. The present invention defines the positions of the connecting piece and the control rod on the nail tube sleeve through the firing initial position and the firing detonation position, thereby ensuring the effectiveness of the firing detonation.

[0017] 3. The present invention makes the limiting of the connecting piece and the control rod simpler and more effective by symmetrically arranging the limiting holes on the nail tube sleeve.

[0018] 4. The present invention mainly adopts fixing pins and sleeve joints as connecting parts, which have the advantages of simple structure, convenient disassembly and assembly, and good connection effect.

[0019] 5. The present invention uses a hollow tube as a control rod, which is beneficial to reducing the overall weight of the tool and saving manufacturing costs, while being easier to control.

[0020] 6. The present invention can reduce the noise during construction through the silencer sleeve and avoid noise pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the present invention before firing and detonation in a narrow groove;

[0024] Figure 4 It is a schematic diagram of the structure of the present invention when it is fired and detonated in a narrow groove;

[0025] Figure numerals: 1. nail tube, 2. nail tube sleeve, 3. firing pin, 4. firing pin seat, 5. return spring, 6. control rod, 7. firing initial position, 8. firing detonation position, 9. limiting hole, 10. front arc end, 11. fixing pin, 12. sleeve joint, 13. silencer sleeve, 14. integrated nail, 15. firing shaft, 16. firing rack. DETAILED DESCRIPTION

[0026] Example 1

[0027] The present invention provides a fastening tool for use in narrow spaces. The fastening tool is mainly used in conjunction with an integrated nail 14 that integrates a nail and a nail bullet. The nail is driven into a substrate and fixed by firing and detonating the nail bullet. Figure 1 , 2 As shown, it includes a nail tube 1, a nail tube sleeve 2, a firing pin 3, a firing pin seat 4, a return spring 5, a silencer sleeve 13, a control rod 6 and a connecting piece. The nail tube sleeve 2 includes a front end ( Figure 1 The left end of the Figure 1 The right end of the nail tube 1 is fixed to the front end of the nail tube sleeve 2, and the firing pin seat 4 is movably arranged at the rear end of the nail tube sleeve 2 through a connecting piece. The silencer sleeve 13 is sleeved on the nail tube 1 and fixedly connected to the front end of the nail tube sleeve 2, and the nail tube 1 is fixed to the front end of the nail tube sleeve 2 through the silencer sleeve 13. Among them, the structure in which the nail tube 1 is fixed to the front end of the nail tube sleeve 2 through the silencer sleeve 13 is an existing conventional connection structure. The firing pin 3 is fixed to the firing pin seat 4 through a pin shaft, and the return spring 5 is sleeved on the firing pin 3, and the return spring 5 is located between the nail tube 1 and the firing pin seat 4. The control rod 6 is fixed on the connecting piece and is perpendicular to the nail tube sleeve 2. The control rod 6 can control the movement of the firing pin seat 4 in the nail tube sleeve 2 through the connecting piece to realize the firing and detonation of the integrated nail 14.

[0028] The nail tube sleeve 2 is provided with an initial firing position 7 and a firing and detonating position 8, and the control rod 6 can control the firing pin seat 4 to move between the initial firing position 7 and the firing and detonating position 8 through the connecting piece. When the firing pin seat 4 is located at the initial firing position 7, there is a certain distance between the firing pin 3 and the nail bullet, and the entire fastening tool is in a state of waiting for firing and detonation. When the firing pin seat 4 is located at the firing and detonating position 8, the tip of the firing pin 3 hits and detonates the nail bullet, and the nail is fired into the matrix. The structure of the connecting piece is not limited, as long as it can effectively control the firing pin seat 4 to move between the initial firing position 7 and the firing and detonating position 8 under the drive of the control rod 6.

[0029] like Figure 3 , 4 As shown, in actual use, this embodiment needs to be equipped with additional support members to cooperate with the firing. The support members specifically include a bracket, a firing shaft 15 and a firing frame 16. The specific shape of the bracket is not limited, and it is best to be able to adapt to the narrow groove. The firing shaft 15 is movably arranged on the bracket through a bearing. The firing frame 16 can be a Z-shaped structure, the middle of which is fixed on the firing shaft 15, one end of which is located outside the groove as the operator's pressing force end; the other end is located in the groove, which is used to cooperate with the control rod 6 to transmit the force and realize the firing and detonation of the integrated nail 14. The specific implementation principle is as follows:

[0030] 1. First, place the integrated nail 14 into the nail tube 1 of the fastening tool, then place the fastening tool into the narrow groove, and make the nail tube 1 perpendicular to the groove wall.

[0031] 2. Place the support member into the narrow groove and locate the support member at a suitable position at the rear end of the nail tube sleeve 2, while making the lower end of the firing frame 16 contact the lower middle part of the control rod 6.

[0032] 3. Using the lever principle, press down the upper end of the firing frame 16. The lower end of the firing frame 16 is forced to drive the control rod 6 to move toward the front end of the nail tube sleeve 2. Correspondingly, the control rod 6 drives the firing pin seat 4 and the firing pin 3 to quickly move from the firing initial position 7 to the firing detonation position 8 through the connecting piece. When the firing pin 3 moves to the firing detonation position 8, the tip of the firing pin 3 hits and detonates the nail bullet, and the nail is fired into the matrix, thereby realizing the rapid tightening of the nail in a narrow space.

[0033] Example 2

[0034] On the basis of Example 1, this embodiment further defines the specific structure of the connecting member and the connection structure with the nail tube sleeve 2, as follows:

[0035] like Figure 1 , 2As shown, the nail tube sleeve 2 is provided with a symmetrical limiting hole 9, the limiting hole 9 has a certain length, and includes a front arc-shaped end 10 and a rear arc-shaped end (not shown in the figure due to obstruction); the connecting piece is movably arranged on the nail tube sleeve 2 through the limiting hole 9. When the connecting piece is located at the rear arc-shaped end, the firing pin seat 4 is located at the initial firing position 7; when the connecting piece is located at the front arc-shaped end 10, the firing pin seat 4 is located at the firing and detonating position 8. Specifically, the length of the limiting hole 9 matches the movement stroke of the firing pin seat 4 to drive the firing pin 3 to impact and detonate the nail bullet, that is, before the nail bullet is fired and detonated, the connecting piece is located at the rear arc-shaped end of the limiting hole 9. When the nail bullet is fired and detonated, the connecting piece is located at the front arc-shaped end 10 of the limiting hole 9.

[0036] Furthermore, in order to ensure the standardization and conformity of the fastening tool, it is preferred that the firing pin seat 4 is located inside the nail tube sleeve 2 , and the end surface of the firing pin seat 4 is flush with the end surface of the nail tube sleeve 2 .

[0037] The connecting piece includes a fixing pin 11 and a sleeve joint 12. The sleeve joint 12 is movably sleeved on the nail tube sleeve 2. The control rod 6 is vertically fixed on the sleeve joint 12 by welding. The fixing pin 11 passes through the sleeve joint 12 and the firing pin seat 4 through the limiting hole 9. In order to facilitate the connection between the control rod 6 and the nail tube sleeve 2 and the firing pin seat 4, the fixing pin 11 is mainly formed by a rod body and two cap bodies. One of the cap bodies can be integrally formed on the rod body first, and the other cap body is used for post-fixation. When installing, firstly, the end of the rod body is passed through the sleeve joint 12 and the firing pin seat 4 through the limiting hole 9, and then the other cap body is fixed to the end of the rod body.

[0038] like Figure 3 , 4 As shown, the implementation principle of this embodiment is as follows:

[0039] 1. First, place the integrated nail 14 into the nail tube 1 of the fastening tool, then place the fastening tool into the narrow groove, and make the nail tube 1 perpendicular to the groove wall.

[0040] 2. Place the support member into the narrow groove and locate the support member at a suitable position at the rear end of the nail tube sleeve 2, while making the lower end of the firing frame 16 contact the lower middle part of the control rod 6.

[0041] 3. By utilizing the lever principle, the upper end of the firing frame 16 is pressed downward, and the lower end of the firing frame 16 is subjected to force to drive the control rod 6 to move toward the front end of the nail tube sleeve 2. Accordingly, the control rod 6 drives the firing pin seat 4 and the firing pin 3 to quickly move from the firing initial position 7 to the firing detonation position 8 through the sleeve joint 12 and the fixing pin 11. When the firing pin 3 moves to the firing detonation position 8, the tip of the firing pin 3 strikes and detonates the nail bullet, and the nail is fired into the matrix, thereby realizing the rapid tightening of the nail in a narrow space.

[0042] Example 3

[0043] On the basis of Example 1 or Example 2, the present embodiment improves the structure of the control rod 6. In order to reduce the weight of the control rod 6 and to improve the convenience and accuracy of operation, the present embodiment configures the control rod 6 as a hollow tube, which may be circular, square or other shapes, and is preferably fixed to the sleeve joint 12 by welding.

[0044] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fastening tool for use in a narrow space, the fastening tool uses a firing pin to detonate a nail bullet to directly fire a nail, the nail bullet and the nail are both located at the front end of the fastening tool, characterized in that: The invention comprises a nail tube (1), a nail tube sleeve (2), a firing pin (3), a firing pin seat (4), a return spring (5), a control rod (6) and a connecting piece, wherein the nail tube (1) is fixed to the front end of the nail tube sleeve (2), the firing pin seat (4) is movably arranged at the rear end of the nail tube sleeve (2) through the connecting piece, the firing pin seat 4 is located in the nail tube sleeve 2, and the end surface of the firing pin seat 4 is flush with the end surface of the nail tube sleeve 2; the firing pin (3) is fixed on the firing pin seat (4), and the return spring (5) is sleeved on the firing pin (3); the control rod (6) is fixed on the connecting piece and is perpendicular to the nail tube sleeve (2), and the control rod (6) can control the firing pin seat (4) to move in the nail tube sleeve (2) through the connecting piece, so as to realize the firing and detonation of the integrated nail 14; The nail tube sleeve (2) is provided with an initial firing position (7) and a firing and detonating position (8), and the control rod (6) can control the firing pin seat (4) to move between the initial firing position (7) and the firing and detonating position (8) through a connecting piece; when the firing pin seat (4) is located at the initial firing position (7), there is a certain distance between the firing pin (3) and the nail bullet, and the entire fastening tool is in a state of waiting for firing and detonation; when the firing pin seat (4) is located at the firing and detonating position (8), the tip of the firing pin (3) strikes and detonates the nail bullet; The nail tube sleeve (2) is provided with symmetrical limiting holes (9), and the connecting piece is movably arranged on the nail tube sleeve (2) through the limiting holes (9); The limiting hole (9) comprises a front arc-shaped end (10) and a rear arc-shaped end. When the connecting member is located at the rear arc-shaped end, the firing pin seat (4) is located at the firing initial position (7); when the connecting member is located at the front arc-shaped end (10), the firing pin seat (4) is located at the firing detonation position (8). The connecting member comprises a fixing pin (11) and a sleeve joint (12), the sleeve joint (12) is movably sleeved on the nail tube sleeve (2), the control rod (6) is vertically fixed on the sleeve joint (12), and the fixing pin (11) passes through the sleeve joint (12) and the firing pin seat (4) through the limiting hole (9); The fastening tool needs to be provided with a supporting member for cooperating with firing, the supporting member comprising a bracket, a firing shaft (15) and a firing frame (16), the firing shaft (15) being movably arranged on the bracket through a bearing, the firing frame (16) being a Z-shaped structure, the middle of which is fixed on the firing shaft (15), one end of the firing frame (16) being located outside the groove as a pressing force end for an operator, and the other end being located inside the groove for cooperating with a control rod (6) to transmit a force; when firing, the upper end of the firing frame (16) is pressed downward by utilizing the principle of a lever, the lower end of the firing frame (16) is subjected to a force to drive the control rod (6) to move toward the front end of the nail tube sleeve 2, the control rod (6) drives the firing pin seat (4) and the firing pin (3) to move rapidly from the firing initial position (7) to the firing detonation position (8) through the connecting member, and when the firing pin (3) moves to the firing detonation position (8), the tip of the firing pin (3) strikes and detonates the nail bullet.

2. A fastening tool for use in a narrow space according to claim 1, characterized in that: The fixing pin (11) comprises a rod body and a cap body. After the rod body passes through the limiting hole (9) and penetrates the sleeve joint (12) and the firing pin seat (4), the cap body is fixed to both ends of the rod body.

3. A fastening tool for use in a narrow space according to claim 1, characterized in that: The control rod (6) is a hollow tube that is welded and fixed on the sleeve joint (12).

4. A fastening tool for use in a narrow space according to claim 1, characterized in that: The nail tube (1) is provided with a silencer sleeve (13) fixedly connected to the nail tube sleeve (2); the nail tube (1) is fixed to the front end of the nail tube sleeve (2) via the silencer sleeve (13).

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