Rivet gun and gun head structure suitable for same

Abstract

The utility model discloses a gun head structure suitable for a riveting gun and the riveting gun. The gun head structure suitable for the riveting gun comprises a claw piece assembly, an elastic piece and a telescopic pipe. The claw piece assembly comprises a rubber pipe and claw pieces, the claw pieces are arranged at the front end of the rubber pipe, the telescopic pipe is arranged at the rear end of the rubber pipe, the elastic piece is connected with the telescopic pipe, and when the gun head does not work, the elastic piece is in a compressed state; according to the scheme, the elastic piece and the telescopic pipe are additionally arranged, elastic force is applied to the rubber pipe and the claw pieces, and the claw pieces are limited on the inner inclined faces of the claw sleeves, so that the claw pieces have more holding force during nail grasping, and the problem that the nail grasping force of the claw pieces is insufficient due to the fact that the rubber pipe deforms due to use can be solved.

Description

Technical Field

[0001] The utility model relates to the field of riveting tools, in particular to a gun head structure suitable for a rivet gun and a rivet gun. Background Art

[0002] The rubber tube claw structure commonly used in riveting tools is usually shorter than the length of the space in which the rubber tube claw is installed in order to easily insert the rivet tail. In this way, the claw is in a naturally expanded state. However, since the rubber tube is easily deformed and shortened after use, the claw has insufficient holding force on the nail tail, resulting in a shortened service life of the rubber tube and a problem of not holding the nail firmly. Therefore, it is urgently needed to provide a gun head structure suitable for a rivet gun and a rivet gun to solve the above problems. Summary of the Invention

[0003] To achieve the above-mentioned purpose, the inventor provides a gun head structure suitable for a rivet gun, comprising: a claw assembly, an elastic member and a telescopic tube;

[0004] The claw assembly includes a rubber tube and a claw. The claw is arranged at the front end of the rubber tube, and the telescopic tube is arranged at the rear end of the rubber tube. The elastic member is connected to the telescopic tube. When the gun head is not working, the elastic member is in a compressed state.

[0005] As a preferred structure of the present invention, the telescopic tube includes an upper top sleeve and a lower top sleeve, the front end of the upper top sleeve is connected to the rear end of the rubber tube, the rear end of the upper top sleeve is sleeved with the front end of the lower top sleeve, and the elastic member is sleeved on the telescopic tube composed of the upper top sleeve and the lower top sleeve.

[0006] As a preferred structure of the present invention, a first step is provided on the circumference of the front end of the upper top sleeve, and a second step is provided on the circumference of the rear end of the lower top sleeve. The elastic member is a spring, and one end of the spring is connected to the first step and the other end is connected to the second step.

[0007] As a preferred structure of the present invention, the front end inner diameter of the lower top sleeve is greater than or equal to the rear end outer diameter of the upper top sleeve, and the rear end of the upper top sleeve is inserted into the front end of the lower top sleeve.

[0008] As a preferred structure of the present invention, the rubber tube and the claw piece are integrally bonded or plug-in connected.

[0009] To achieve the above-mentioned purpose, the inventors also provide a rivet gun, comprising: a transmission mechanism, a rivet pulling mechanism and a claw sleeve, and also comprising a gun head structure suitable for a rivet gun as described in any one of the above-mentioned invention contents, wherein the transmission mechanism is transmission-connected to the rivet pulling mechanism, the claw sleeve is fixedly arranged at the front end of the rivet pulling mechanism, the gun head structure is arranged in the claw sleeve, and the claw piece assembly is arranged at the front end of the claw sleeve.

[0010] As a preferred structure of the present invention, the rivet mechanism includes a screw assembly and a connecting sleeve. The screw assembly is fixedly connected to the rear end of the claw sleeve through the connecting sleeve, and the rear end end of the lower top sleeve is in contact with the front end end of the connecting sleeve.

[0011] Different from the existing technology, the beneficial effects achieved by the above technical scheme are as follows: the gun head structure and the rivet gun add elastic parts and telescopic tubes, so that the telescopic tube can be in an outward extended state under the action of the elastic parts, thereby applying elastic force to the rubber tube and the claw piece, limiting the claw piece to the inner inclined surface of the claw sleeve. Under the action of the elastic force, the rubber tube and the claw piece have stronger holding force when grabbing nails, and can compensate for the deformation of the rubber tube due to use, resulting in insufficient nail grabbing force of the claw piece; in addition, when the gun head structure and the rivet gun are in use, the nail insertion force is controlled by the elastic part, which can effectively improve the service life of the gun head structure and the rivet gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the gun head structure described in the specific implementation method.

[0013] Figure 2 It is an exploded view of the gun head structure described in the specific implementation method.

[0014] Figure 3 It is a cross-sectional view of the gun tip structure according to a specific embodiment.

[0015] Figure 4 It is a schematic diagram of the local structure of the rivet gun described in the specific implementation method.

[0016] Figure 5 It is a cross-sectional view of the local structure described in the specific implementation method.

[0017] Description of reference numerals:

[0018] 101. Rubber tube; 102. Claw; 103. Elastic member; 104. Telescopic tube; 1041. Upper top sleeve; 1042. Lower top sleeve; 1043. First step; 1044. Second step; 201. Transmission mechanism; 202. Riveting mechanism; 2021. Screw assembly; 2022. Connecting sleeve; 203. Claw sleeve. DETAILED DESCRIPTION

[0019] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0020] like Figure 1 、 Figure 2 and Figure 3As shown, this embodiment provides a gun head structure suitable for a rivet gun, comprising: a claw assembly, an elastic member 103, and a telescopic tube 104. In this embodiment, the claw assembly includes a rubber tube 101 and a claw 102. The claw 102 is located at the front end of the rubber tube, and the telescopic tube 104 is located at the rear end of the rubber tube 101. The elastic member 103 is connected to the telescopic tube 104. When the gun head is not in use, the elastic member 103 is in a compressed state. In this embodiment, the elastic member 103 is used to provide elastic force to the telescopic tube 104. When the gun head is assembled, the elastic member 103 is in a compressed state, which can cause the telescopic tube 104 to extend outward, thereby providing elastic force to the rubber tube 101 and the claw 102, restraining the claw 102 on the front inclined surface of the inner wall of the claw sleeve 203, an accessory component of the rivet gun. This allows the claw 102 to have a stronger grip when grasping the nail, and can also compensate for the problem of insufficient claw gripping force caused by deformation of the rubber tube during use.

[0021] like Figure 2 and Figure 3 As shown, in this embodiment, the telescopic tube 104 includes an upper top sleeve 1041 and a lower top sleeve 1042. The front end of the upper top sleeve 1041 is connected to the rear end of the rubber tube 101, and the rear end of the upper top sleeve 1041 is sleeved and connected to the front end of the lower top sleeve 1042. The elastic member 103 is sleeved on the telescopic tube 104 composed of the upper top sleeve 1041 and the lower top sleeve 1042. Of course, in different embodiments, the telescopic tube 104 can also adopt other telescopic structural components, such as a telescopic bellows, a hose, a sleeve, etc.

[0022] In order to facilitate the installation of the spring, in the above embodiment, a first step 1043 is provided on the circumferential side of the front end portion of the upper top sleeve 1041, and a second step 1044 is provided on the circumferential side of the rear end portion of the lower top sleeve 1042. The elastic member 103 is a spring, one end of the spring is in contact with the first step 1043, and the other end is in contact with the second step 1044.

[0023] In the above embodiment, the front end inner diameter of the lower top sleeve 1042 is greater than or equal to the rear end outer diameter of the upper top sleeve 1041, and the rear end of the upper top sleeve 1041 is inserted into the front end of the lower top sleeve 1042; in this way, during the riveting process, the tail pin after the nail is broken will not be blocked by the front end section of the lower top sleeve, and can smoothly enter the nail collection box at the tail end of the rivet gun.

[0024] In the above embodiment, the rubber tube 101 and the claw piece 102 are integrally bonded or plug-in connected.

[0025] like Figure 4 and Figure 5As shown, this embodiment further provides a rivet gun, comprising: a transmission mechanism 201, a rivet pulling mechanism 202 and a claw sleeve 203, and also comprising a gun head structure suitable for a rivet gun according to any one of the above embodiments. In this embodiment, the transmission mechanism is connected to the rivet pulling mechanism, and the transmission mechanism can be a gear or a reduction gear unit. The rivet pulling mechanism 202 includes a screw assembly 2021, and the screw nut of the screw assembly 2021 is connected to the transmission mechanism to drive the screw to reciprocate and perform the riveting operation. In this embodiment, the claw sleeve is fixed at the front end of the rivet pulling mechanism, the gun head structure is arranged in the claw sleeve, and the claw piece assembly is arranged at the front end of the claw sleeve. The screw assembly drives the claw sleeve to reciprocate, and the claw sleeve realizes the closing, opening, and movement of the claw piece through the inclined surface, thereby realizing the riveting operation.

[0026] In this embodiment, the rivet mechanism 202 includes a screw assembly 2021 and a connecting sleeve 2022. The screw assembly 2021 is fixedly connected to the rear end of the claw sleeve 203 via the connecting sleeve 2022. The rear end of the lower top sleeve 1042 is in contact with the front end of the connecting sleeve 2022. During the implementation of this embodiment, the ends of the telescopic tube are pressed between the connecting sleeve and the rubber tube. Then, under the elastic force of the elastic member, they are in an outwardly extended state, thereby pressing the claws against the inner inclined surface of the claw sleeve. This makes the claws more clamping when grasping the nail and can compensate for the problem of insufficient claw gripping force caused by deformation of the rubber tube during use. In addition, when the rivet gun is in use, its nail insertion force is controlled by the elastic member, which can effectively increase the service life of the rivet gun.

[0027] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, based on the innovative concept of the present invention, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the contents of the present invention specification and drawings, and direct or indirect application of the above technical solutions to other related technical fields, are all included in the scope of patent protection of the present invention.

Claims

1. A gun head structure suitable for a rivet gun, characterized in that: include: Claw assembly, elastic member and telescopic tube; The claw assembly includes a rubber tube and a claw. The claw is arranged at the front end of the rubber tube, and the telescopic tube is arranged at the rear end of the rubber tube. The elastic member is connected to the telescopic tube. When the gun head is not working, the elastic member is in a compressed state.

2. The gun head structure suitable for a rivet gun according to claim 1, characterized in that: The telescopic tube includes an upper top sleeve and a lower top sleeve, the front end of the upper top sleeve is connected to the rear end of the rubber tube, the rear end of the upper top sleeve is sleeved and connected to the front end of the lower top sleeve, and the elastic member is sleeved on the telescopic tube composed of the upper top sleeve and the lower top sleeve.

3. The gun head structure suitable for a rivet gun according to claim 2, characterized in that: A first step is provided around the front end of the upper top sleeve, and a second step is provided around the rear end of the lower top sleeve. The elastic member is a spring, one end of the spring is in contact with the first step, and the other end is in contact with the second step.

4. The gun head structure suitable for a rivet gun according to claim 2, characterized in that: The inner diameter of the front end of the lower top sleeve is greater than or equal to the outer diameter of the rear end of the upper top sleeve, and the rear end of the upper top sleeve is inserted into the front end of the lower top sleeve.

5. The gun head structure suitable for a rivet gun according to any one of claims 1 to 4, characterized in that: The rubber tube and the claw piece are connected in an integral bonding or plug-in manner.

6. A rivet gun, characterized in that: include: The transmission mechanism, the riveting mechanism and the claw sleeve are characterized in that: it also includes a gun head structure suitable for a rivet gun as described in any one of claims 1 to 5 above, the transmission mechanism is transmission-connected to the riveting mechanism, the claw sleeve is fixed at the front end of the riveting mechanism, the gun head structure is arranged in the claw sleeve, and the claw piece assembly is arranged at the front end of the claw sleeve.

7. The rivet gun according to claim 6, characterized in that: The riveting mechanism includes a screw assembly and a connecting sleeve. The screw assembly is fixedly connected to the rear end of the claw sleeve through the connecting sleeve. The rear end of the lower top sleeve is in contact with the front end of the connecting sleeve.

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