Limiting structure of self-plugging rivet and hand riveter

Abstract

The utility model provides a limiting structure of a self-plugging rivet and a hand riveter, the limiting structure is applied to the hand riveter, the hand riveter is provided with a rivet outlet channel, and the limiting structure comprises a plurality of rivet blocking plates, a plurality of rivet blocking plates and a plurality of rivet blocking plates, the springs are connected to the nail blocking plates in a one-to-one correspondence mode, and the springs are arranged along the rotating paths of the nail blocking plates; the nail blocking plate rotates in the direction away from the nail outlet channel under the action of external force, at least part of the nail outlet channel is opened, and the spring deforms and has the trend of moving in the direction close to the nail outlet channel, so that when the external force disappears, the nail blocking plate can move in the direction close to the nail outlet channel. And the nail stopping plate partially seals the nail outlet channel by virtue of the elastic force of the spring. The limiting structure solves the technical problems that a traditional limiting structure is large in installation space and uneven in stress.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet guns, in particular to a limiting structure of a blind rivet and a rivet gun. Background Art

[0002] like Figure 1 As shown, the blind rivet 1 includes a shank 100, and a tube body 101 and a nut 102 which are sleeved outside the shank 100 and connected to each other. The tube body of the blind rivet is used to be inserted into the rivet hole of the connecting piece, and the rivet rod is clamped and continuously pulled by a rivet gun. When the rivet gun carries the broken shank, the fastening and riveting of the connecting piece is completed.

[0003] However, since the blind rivet needs to be pushed out from the inside of the rivet gun, and the tube body and the rivet cap need to be retained outside the rivet gun when the rivet rod is clamped; a tension spring or a compression spring is required in this process, that is, the tension spring or the compression spring is used to release or clamp the rivet rod along the up and down movement; however, the use of the above-mentioned springs has the disadvantages of large installation space and uneven force. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a limiting structure for blind rivets and a rivet gun to solve the technical problems of large installation space and uneven force of the traditional limiting structure in the related technology.

[0005] The utility model provides a limiting structure of a blind rivet, which is applied to a rivet gun. The rivet gun has a rivet outlet channel. The limiting structure includes:

[0006] A plurality of nail blocking plates are rotatably disposed on the nail outlet channel;

[0007] A plurality of springs, connected to the plurality of nail blocking plates in a one-to-one correspondence, and the springs are arranged along the rotation path of the nail blocking plates;

[0008] Wherein, the nail blocking plate rotates in the direction away from the nail output channel under the action of external force to at least partially open the nail output channel, and causes the spring to deform and have a movement tendency in the direction close to the nail output channel, so that when the external force disappears, the nail blocking plate partially closes the nail output channel by relying on the elastic force of the spring.

[0009] Furthermore, the spring is an arc-shaped structure.

[0010] Furthermore, the nail-exiting channel is provided with a plurality of arc-shaped grooves, and each of the arc-shaped grooves is arranged along the rotation path of each of the nail-blocking plates for accommodating the corresponding spring.

[0011] Furthermore, a plurality of the nail blocking plates are arranged along the circumference of the nail outlet channel, and gaps communicating with the nail outlet channel are formed therebetween.

[0012] Furthermore, the two ends of the gap are defined as the front end and the rear end respectively, and the nail blocking plate is provided with a guiding slope inclined outward from the front end to the rear end, so that the width of the front end gradually increases under the action of external force, and the width of the front end gradually decreases when the external force disappears.

[0013] Furthermore, one end of the nail blocking plate close to the rear end is rotatably arranged on the nail outlet channel via a rotating shaft.

[0014] Furthermore, the nail blocking plate is provided with a lug for mounting the rotating shaft.

[0015] Furthermore, a straight line segment is provided at one end of the nail blocking plate close to the front end, and after the external force disappears, the straight line segment is flush with the end surface of the nail outlet channel.

[0016] Furthermore, the nail blocking plate is provided with a protrusion for extending into the spring.

[0017] The utility model also provides a rivet gun, comprising a shell and the above-mentioned limiting structure of the blind rivet, wherein the shell is formed with the nail-out channel and a nail-out nozzle connected to the nail-out channel.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The external force acting on the nail blocking plate is the thrust applied to the blind rivet, which can be linked to the nail blocking plate to rotate in the direction away from the nail output channel, thereby opening the nail output channel, so that the blind rivet can pass through the nail output channel without hindrance and the tube body and nail cap of the blind rivet are placed outside the nail output channel; at the same time, the nail blocking plate can compress the corresponding spring, so that it has a movement tendency in the direction close to the nail output channel, so that the nail blocking plate can be reset after the above-mentioned thrust disappears, so as to partially close the nail output channel, so that the channel can only allow the rod body to pass through, and limit the tube body and the nail cap;

[0020] 2. The rotation setting of the nail blocking plate can form a rotation path, and the spring is arranged along the rotation path, so that under the action of the spring, the force on the nail blocking plate is more uniform and the structure is more stable; at the same time, compared with the traditional tension spring and / or compression spring that moves in the up and down direction, the spring arranged along the rotation path of the nail blocking plate has a smaller installation space, so as to be more suitable for the installation requirements of a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a blind rivet in the prior art;

[0022] Figure 2 It is a structural schematic diagram of a limiting structure in an embodiment of the utility model;

[0023] Description of Figure Numbers:

[0024] 1. Blind rivet; 100. Nail rod; 101. Tube; 102. Nail cap; 2. Shell; 201. Nail outlet channel; 3. Nail blocking plate; 301. Guide slope; 302. Straight line segment; 4. Spring; 5. Gap; 6. Rotating shaft.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In the embodiment of the present utility model, Figure 2 As shown, the limiting structure of the blind rivet includes a plurality of nail blocking plates 3 and a plurality of springs 4; the plurality of nail blocking plates 3 are rotatably arranged on the nail output channel 201; the plurality of springs 4 are connected to the plurality of nail blocking plates 3 one by one, and the springs 4 are arranged along the rotation path of the nail blocking plates 3; wherein, the nail blocking plates 3 are rotated in a direction away from the nail output channel 201 under the action of an external force to at least partially open the nail output channel 201, and the springs 4 are deformed to have a movement tendency in a direction close to the nail output channel 201, so that when the external force disappears, the nail blocking plates 3 partially close the nail output channel 201 by relying on the elastic force of the springs 4.

[0028] Specifically, in an embodiment of the utility model, the limiting structure is applied to a rivet gun, which has a nail output channel 201 for the blind rivet to pass through; specifically, the blind rivet is pushed to move toward the exit direction of the nail output channel 201 under the action of an external force, and the tube body and the nail cap of the blind rivet are placed outside the nail output channel 201, and the nail rod of the blind rivet is retained in the nail output channel 201; the nail rod is broken by utilizing the pulling force acting on the nail rod, and in this process the tube body can be riveted to the rivet hole of the connecting piece.

[0029] In the embodiment of the utility model, a plurality of nail blocking plates 3 (such as Figure 2As shown, the present embodiment takes two nail blocking plates 3 as an example), the nail blocking plates 3 can rotate forwards and reverses in the nail output channel 201, thereby partially closing or at least partially opening the nail output channel 201 (the direction of rotation of the nail blocking plates 3 and the closed or open state of the nail output channel 201 depend on the actual installation position of the nail blocking plates 3, and are not limited here); in the natural state, the nail blocking plates 3 partially close the nail output channel 201; when the tube body and the nail cap of the blind rivet continue to provide a thrust to the nail blocking plates 3, the nail blocking plates 3 can continue to rotate in the corresponding direction and gradually open the nail output channel 201, so that the tube body and the nail cap of the blind rivet can be pushed out of the nail output channel 201 without hindrance.

[0030] In the embodiment of the utility model, each nail blocking plate 3 is connected to a spring 4, and the spring 4 is arranged along the rotation path of the nail blocking plate 3. On the one hand, the spring 4 can be compressed when the nail blocking plate 3 rotates, so that the spring 4 has a tendency to move in the direction of the nail outlet channel 201, which is convenient for resetting the nail blocking plate 3 after the tube body and the nail cap are extended, so that the nail blocking plate 3 abuts against the nail cap to play a limiting role; on the other hand, changing the installation position of the spring 4 not only makes the force more uniform and the structure more stable, but also saves more installation space compared to other elastic parts with linear motion.

[0031] The utility model uses the nail blocking plate 3 in conjunction with the spring 4, so that the nail blocking plate 3 can be rotated under the thrust of the blind rivet, thereby gradually opening the nail outlet channel 201, so that the tube body and the nail cap of the blind rivet can extend out of the nail outlet channel 201, and the nail blocking plate 3 is reset under the action of the spring 4, so that the nail blocking plate 3 abuts against the nail cap, and then the tube body and the nail cap are limited outside the nail outlet channel 201, and a width is retained that only allows the nail rod to pass through; furthermore, changing the installation method of the spring 4 so that it is arranged along the rotation path of the nail blocking plate 3 can make the structure more evenly stressed, more stable, and reduce the installation space of the spring 4, so that it is suitable for narrower installation space requirements and reduces the installation width.

[0032] like Figure 2 As shown, in one embodiment, the spring 4 is an arc-shaped structure. Specifically, in order to make the installation of the spring 4 adapt to the rotation path of the nail blocking plate 3, the present embodiment defines the spring 4 as an arc-shaped structure, the center of which coincides with the rotation point of the nail blocking plate 3, so that after matching with the nail blocking plate 3, the force of the present structure is more uniform.

[0033] Furthermore, in one embodiment, the nail-exiting channel 201 is provided with a plurality of arc-shaped grooves, each of which is provided along the rotation path of each of the nail-blocking plates 3, for accommodating the corresponding spring 4. Specifically, in order to enable the spring 4 to be compressed and reset along a preset path, the present embodiment provides an arc-shaped groove for accommodating the spring 4 on the inner wall of the nail-exiting channel 201, so as to specify the movement direction and path of the spring 4; of course, the arc-shaped groove may be provided with a notch for avoiding the corresponding nail-blocking plate 3; at the same time, when the nail-blocking plate 3 abuts against the end of the notch, the nail-blocking plate 3 at this time rotates to the maximum angle, allowing the tube body and the nail cap to pass through unimpeded; on the contrary, when the spring 4 is in a natural state, the nail-blocking plate 3 partially closes the nail-exiting channel 201 and only allows the nail rod to pass through.

[0034] like Figure 2 As shown, in one embodiment, a plurality of the nail blocking plates 3 are arranged along the circumference of the nail output channel 201, and a gap 5 is formed therebetween that is connected to the nail output channel 201. Specifically, in order to make the nail cap extending out of the nail output channel 201 bear force evenly and to prevent the nail blocking plates 3 from accidentally rotating, in this embodiment, a plurality of nail blocking plates 3 are arranged in a circular array along the circumference of the nail output channel 201 to balance the force on the nail cap; in this embodiment, since two nail blocking plates 3 are provided, the two nail blocking plates 3 are arranged in a mirror image in the vertical direction. In other embodiments, the number of the nail blocking plates 3 may be changed, which will not be described in detail here.

[0035] like Figure 2 As shown, in one embodiment, the two ends of the gap 5 are defined as the front end and the rear end, respectively, and the nail blocking plate 3 is provided with a guide slope 301 that tilts outward from the front end to the rear end, so that the width of the front end gradually increases under the action of an external force, and the width of the front end gradually decreases when the external force disappears. Specifically, in order to facilitate the blind rivet to quickly push the nail blocking plate 3 to rotate, this embodiment is provided with a guide slope 301 on the nail blocking plate 3, and the guide slope 301 tilts outward from front to back, so that the nail blocking plate 3 can quickly avoid the tube body and the nail cap while rotating, and limit the return movement of the nail cap when the spring 4 is reset. It can be understood that the width of the gap 5 formed at the front ends of the above two nail blocking plates 3 gradually decreases after the external force disappears, and only a width that allows the rod body to pass is formed.

[0036] like Figure 2 As shown, in one embodiment, the end of the nail blocking plate 3 close to the rear end is rotatably arranged in the nail-exiting channel 201 via a rotating shaft 6. Specifically, in order to enable the nail blocking plate 3 to rotate forward and reverse in the nail-exiting channel 201, this embodiment is provided with a rotating shaft 6 on the nail blocking plate 3, so that the nail blocking plate 3 can rotate around the axis of the rotating shaft 6 to realize the opening or partial closing of the nail-exiting channel 201; preferably, the nail blocking plate 3 is provided with a lug for mounting the rotating shaft 6.

[0037] like Figure 2 As shown, in one embodiment, a straight line segment 302 is provided at one end of the nail blocking plate 3 close to the front end, and after the external force disappears, the straight line segment 302 is flush with the end surface of the nail output channel 201. Specifically, in order to block the nail cap from the nail output channel 201, this embodiment provides a straight line segment 302 on the nail blocking plate 3, and the straight line segment 302 is provided in the up-down direction to abut against the nail cap to limit the nail cap from moving back.

[0038] like Figure 2 As shown, in one embodiment, the nail blocking plate 3 is provided with a protrusion for extending into the spring 4. Specifically, in order to make the nail blocking plate 3 compress the spring 4 during the rotation process, and the spring 4 pushes the nail blocking plate 3 to reset when resetting, this embodiment provides a protrusion on the nail blocking plate 3, and the protrusion can extend into the spring 4, so as to improve the connection tightness between the two, and at the same time can also reduce the installation space of the two.

[0039] This embodiment also provides a rivet gun, including a housing 2 and the above-mentioned limiting structure of the blind rivet, wherein the housing 2 is formed with the above-mentioned nail outlet channel 201 and a nail outlet mouth connected to the above-mentioned nail outlet channel 201. The specific structure of the limiting structure refers to the above-mentioned embodiment, and since this rivet gun adopts all the technical solutions of the above-mentioned embodiment, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be described one by one here.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A limiting structure of a blind rivet, applied to a rivet gun, wherein the rivet gun has a rivet outlet channel, characterized in that: The limiting structure comprises: A plurality of nail blocking plates are rotatably disposed on the nail outlet channel; A plurality of springs, connected to the plurality of nail blocking plates in a one-to-one correspondence, and the springs are arranged along the rotation path of the nail blocking plates; Wherein, the nail blocking plate rotates in the direction away from the nail output channel under the action of external force to at least partially open the nail output channel, and causes the spring to deform and have a movement tendency in the direction close to the nail output channel, so that when the external force disappears, the nail blocking plate partially closes the nail output channel by relying on the elastic force of the spring.

2. The limiting structure of the blind rivet according to claim 1, characterized in that: The spring is an arc-shaped structure.

3. The limiting structure of the blind rivet according to claim 2, characterized in that: The nail-exiting channel is provided with a plurality of arc-shaped grooves, each of which is arranged along the rotation path of each of the nail-blocking plates for accommodating the corresponding spring.

4. The limiting structure of the blind rivet according to any one of claims 1 to 3, characterized in that: A plurality of nail blocking plates are arranged along the circumference of the nail outlet channel, and gaps communicating with the nail outlet channel are formed therebetween.

5. The limiting structure of the blind rivet according to claim 4, characterized in that: The two ends of the gap are defined as the front end and the rear end respectively, and the nail blocking plate is provided with a guiding inclined surface inclined outward from the front end to the rear end so that the width of the front end gradually increases under the action of external force, and the width of the front end gradually decreases when the external force disappears.

6. The limiting structure of the blind rivet according to claim 5, characterized in that: One end of the nail blocking plate close to the rear end is rotatably arranged on the nail outlet channel through a rotating shaft.

7. The limiting structure of the blind rivet according to claim 6, characterized in that: The nail blocking plate is provided with a lug for mounting the rotating shaft.

8. The limiting structure of the blind rivet according to claim 6, characterized in that: A straight line segment is provided at one end of the nail blocking plate close to the front end, and after the external force disappears, the straight line segment is flush with the end surface of the nail outlet channel.

9. The limiting structure of the blind rivet according to claim 1, characterized in that: The nail blocking plate is provided with a protrusion for extending into the spring.

10. A rivet gun, characterized in that: It comprises a shell and a limiting structure as claimed in any one of claims 1 to 9, wherein the shell is formed with the nail-out channel and a nail-out mouth connected to the nail-out channel.

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