Elastic sheet type pneumatic elastic pin

Abstract

The utility model discloses an elastic piece type pneumatic elastic pin and relates to the field of elastic pins, the elastic piece type pneumatic elastic pin comprises a pin body, mounting blocks are fixedly mounted on the outer walls of the two sides of the pin body, connecting blocks are fixedly mounted on the two mounting blocks, and a first cavity and a second cavity are formed in the pin body; the same piston rod is slidably mounted in the first cavity and the second cavity, and a piston head is fixedly mounted at one end of the top of the piston rod. An external pneumatic system is connected with the piston seat and drives the piston seat to move, the piston seat moves and drives the piston rod and the piston head to move along with the piston seat, and therefore the pin sleeve can move and be expanded, the pin sleeve can achieve the diameter expanding and diameter reducing effects, and the service life of the pin sleeve is prolonged. Therefore, compared with an existing elastic pin, the elastic piece type pneumatic elastic pin can be connected with an external pneumatic system for use, use convenience and working efficiency are improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present application relates to the field of elastic pins, and in particular to a shrapnel-type pneumatic elastic pin. Background Art

[0002] An elastic pin, also known as a spring pin, is a headless hollow cylindrical body with an axial slot and chamfered ends. It is mainly used for positioning, connecting and fixing parts. The elastic pin needs to have good elasticity and shear resistance, and its outer diameter is usually slightly larger than the assembly hole diameter.

[0003] Although existing elastic pins also have the functions of positioning, connecting and fixing, they often cannot be connected and used in conjunction with external pneumatic systems, resulting in low flexibility and convenience. Furthermore, manual operation and positioning and installation are required during use, which reduces work efficiency and increases labor intensity. Utility Model Content

[0004] In order to improve work efficiency and reduce manual labor intensity, the present application provides a shrapnel-type pneumatic elastic pin.

[0005] The shrapnel-type pneumatic elastic pin provided in the present application adopts the following technical solution: the shrapnel-type pneumatic elastic pin includes a pin body, and mounting blocks are fixedly installed on the outer walls of both sides of the pin body, and connecting blocks are fixedly installed on the two mounting blocks. A first cavity and a second cavity are respectively provided in the pin body, and the same piston rod is slidably installed in the first cavity and the second cavity. A piston head is fixedly installed on the top end of the piston rod, and a piston seat is fixedly installed on the bottom end of the piston rod. The top of the pin body and the bottom of the piston head are both provided with the same pin sleeve.

[0006] By adopting the above technical solution, the piston seat is connected through an external pneumatic system, and the piston seat is driven to move. The movement of the piston seat will drive the piston rod and the piston head to move as well, so that the pin sleeve can move and expand, and the pin sleeve can play the role of widening and shrinking the diameter. Therefore, compared with the existing elastic pin, the shrapnel type pneumatic elastic pin of this device can be connected to an external pneumatic system for use, thereby improving convenience and work efficiency during use and reducing manual labor intensity.

[0007] Preferably, a notch is provided on one side of the piston rod.

[0008] By adopting the above technical solution, the gap is provided to assist in installing the driver.

[0009] Preferably, a tapered opening is provided inside the pin sleeve.

[0010] By adopting the above technical solution and setting the cone mouth, movement is facilitated.

[0011] Preferably, the pin sleeve is provided with an opening.

[0012] By adopting the above technical solution, the opening is provided to facilitate installation.

[0013] Preferably, a mounting groove is provided on the piston seat, a mounting piece is provided in the mounting groove, and the mounting piece is fixedly connected to the piston rod.

[0014] By adopting the above technical solution and providing the installation groove, it can play a role in assisting installation.

[0015] Preferably, a rectangular groove is provided in the second cavity, and two telescopic rods are symmetrically fixedly installed in the rectangular groove, and a telescopic spring is provided on the two telescopic rods. The same sliding plate is fixedly installed at one end of the two telescopic rods, and a first semicircular block is fixedly installed on the outer wall of one side of the sliding plate, and a second semicircular block is fixedly installed on the outer wall of one side of the piston seat, and the first semicircular block and the second semicircular block are in contact with each other.

[0016] By adopting the above technical solution, when the piston seat moves, the second semicircular block will also be driven to move. The movement of the second semicircular block will push the first semicircular block to move inward, and compress the telescopic rod and the telescopic spring, thereby limiting and fixing the movement trajectory of the piston seat, and avoiding the piston seat from offsetting during installation or movement.

[0017] Preferably, two T-shaped slots are symmetrically provided on the rectangular slot, and T-shaped blocks are slidably installed in the two T-shaped slots, and the two T-shaped blocks are fixedly installed on both sides of the sliding plate respectively.

[0018] By adopting the above technical solution, the T-slot and T-block are provided to assist in installation.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The present application adopts the cooperation of the pin sleeve, etc., to connect with the piston seat through an external pneumatic system, and drive the piston seat to move. The movement of the piston seat will drive the piston rod and the piston head to move as well, so that the pin sleeve can move and expand, and the pin sleeve can play the role of widening and shrinking the diameter. Therefore, compared with the existing elastic pin, the shrapnel-type pneumatic elastic pin of this device can be connected to the external pneumatic system for use, thereby improving the convenience and work efficiency during use and reducing the labor intensity of manual labor.

[0021] 2. This application adopts the cooperation of the first semicircular block, etc. When the piston seat moves, it will drive the second semicircular block to move as well. The movement of the second semicircular block will push the first semicircular block to move inward, and compress the telescopic rod and the telescopic spring, thereby limiting and fixing the movement trajectory of the piston seat to avoid the piston seat from offsetting during installation or movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the shrapnel-type pneumatic elastic pin according to an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram mainly showing the internal structure of the pneumatic elastic pin according to an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of a partially expanded structure of a pin sleeve according to an embodiment of the present application;

[0025] Figure 4 This is a schematic diagram mainly showing the limiting structure of the embodiment of the present application.

[0026] Figure numerals: 1, pin body; 2, mounting block; 3, connecting block; 4, first cavity; 5, second cavity; 6, piston seat; 7, piston rod; 8, piston head; 9, pin sleeve; 10, notch; 11, mounting groove; 12, mounting plate; 13, opening; 14, tapered mouth; 15, rectangular groove; 16, telescopic rod; 17, telescopic spring; 18, sliding plate; 19, first semicircular block; 20, second semicircular block; 21, T-slot; 22, T-block. DETAILED DESCRIPTION

[0027] The following is combined with Figures 1-4 This application is described in further detail.

[0028] The embodiments of the present application disclose a spring-type pneumatic elastic pin.

[0029] Reference Figure 1-3 The shrapnel-type pneumatic elastic pin includes a pin body 1, two mounting blocks 2 fixedly mounted on the outer walls on both sides of the pin body 1, two connecting blocks 3 fixedly mounted on the two mounting blocks 2, a first cavity 4 and a second cavity 5 arranged in the pin body 1, a same piston rod 7 slidably mounted in the first cavity 4 and the second cavity 5, a positioning mechanism arranged in the second cavity 5, a piston head 8 fixedly mounted on one end of the top of the piston rod 7, a piston seat 6 fixedly mounted on one end of the bottom of the piston rod 7, and a pin sleeve 9 is provided on the top of the pin body 1 and below the piston head 8, a notch 10 opened on one side of the piston rod 7, a tapered opening 14 opened inside the pin sleeve 9, and an opening 13 opened on the pin sleeve 9.

[0030] When in use, it is connected to the piston seat 6 through an external pneumatic system, and drives the piston seat 6 to move. The movement of the piston seat 6 will drive the piston rod 7 and the piston head 8 to move as well, so that the pin sleeve 9 can move and expand, and the pin sleeve 9 can play the role of widening and shrinking the diameter. Therefore, compared with the existing elastic pin, the shrapnel type pneumatic elastic pin of this device can be connected to an external pneumatic system for use, thereby improving convenience and work efficiency during use and reducing manual labor intensity.

[0031] Reference Figure 2-4 The positioning mechanism includes a mounting groove 11 provided on the piston seat 6, a mounting piece 12 arranged in the mounting groove 11, and the mounting piece 12 is fixedly connected to the piston rod 7, two rectangular grooves 15 provided in the second cavity 5, two telescopic rods 16 symmetrically fixedly installed in the rectangular groove 15, two telescopic springs 17 sleeved on the two telescopic rods 16, the same sliding plate 18 fixedly installed at one end of the two telescopic rods 16, a first semicircular block 19 fixedly installed on the outer wall of one side of the sliding plate 18, a second semicircular block 20 fixedly installed on the outer wall of one side of the piston seat 6, and the first semicircular block 19 and the second semicircular block 20 are in contact, two T-slots 21 provided on the rectangular groove 15, two T-blocks 22 slidably installed in the two T-slots 21, and the two T-blocks 22 are respectively fixedly installed on both sides of the sliding plate 18.

[0032] During use, when the piston seat 6 moves, the second semicircular block 20 will also move. The second semicircular block 20 moves and pushes the first semicircular block 19 to move inward, and compresses the telescopic rod 16 and the telescopic spring 17, thereby limiting and fixing the movement trajectory of the piston seat 6 to avoid the piston seat 6 from offsetting during installation or movement.

[0033] The implementation principle of the shrapnel-type pneumatic elastic pin of the embodiment of the present application is as follows: when in use, it is connected to the piston seat 6 through an external pneumatic system, and the piston seat 6 is driven to move. The movement of the piston seat 6 will also drive the piston rod 7 and the piston head 8 to move, thereby causing the pin sleeve 9 to move and expand, and the pin sleeve 9 can thus play the role of widening and shrinking the diameter. Therefore, compared with the existing elastic pin, the shrapnel-type pneumatic elastic pin of this device can be connected to an external pneumatic system for use, thereby improving the convenience and work efficiency during use and reducing the labor intensity of manual labor;

[0034] When the piston seat 6 moves, the second semicircular block 20 will also move. The movement of the second semicircular block 20 will push the first semicircular block 19 to move inward, and compress the telescopic rod 16 and the telescopic spring 17, thereby limiting and fixing the movement trajectory of the piston seat 6 to avoid the piston seat 6 from offsetting during installation or movement.

[0035] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A shrapnel-type pneumatic elastic pin, comprising a pin body (1), characterized in that: The outer walls of both sides of the pin body (1) are fixedly mounted with mounting blocks (2), and the two mounting blocks (2) are fixedly mounted with connecting blocks (3). The pin body (1) is provided with a first cavity (4) and a second cavity (5), respectively. The same piston rod (7) is slidably mounted in the first cavity (4) and the second cavity (5). The top end of the piston rod (7) is fixedly mounted with a piston head (8), and the bottom end of the piston rod (7) is fixedly mounted with a piston seat (6). The top of the pin body (1) and the bottom of the piston head (8) are both provided with a same pin sleeve (9).

2. The shrapnel-type pneumatic elastic pin according to claim 1, characterized in that: A notch (10) is provided on one side of the piston rod (7).

3. The shrapnel-type pneumatic elastic pin according to claim 2, characterized in that: A tapered opening (14) is provided inside the pin sleeve (9).

4. The shrapnel-type pneumatic elastic pin according to claim 3, characterized in that: The pin sleeve (9) is provided with an opening (13).

5. The shrapnel-type pneumatic elastic pin according to claim 1, characterized in that: The piston seat (6) is provided with a mounting groove (11), a mounting piece (12) is provided in the mounting groove (11), and the mounting piece (12) is fixedly connected to the piston rod (7).

6. The shrapnel-type pneumatic elastic pin according to claim 1, characterized in that: A rectangular groove (15) is provided in each of the second cavities (5), and two telescopic rods (16) are symmetrically fixedly installed in the rectangular groove (15). A telescopic spring (17) is sleeved on each of the two telescopic rods (16). A same sliding plate (18) is fixedly installed at one end of each of the two telescopic rods (16). A first semicircular block (19) is fixedly installed on an outer wall of one side of the sliding plate (18), and a second semicircular block (20) is fixedly installed on an outer wall of one side of the piston seat (6), and the first semicircular block (19) and the second semicircular block (20) are in contact with each other.

7. The shrapnel-type pneumatic elastic pin according to claim 6, characterized in that: Two T-shaped slots (21) are symmetrically provided on the rectangular slot (15), and T-shaped blocks (22) are slidably installed in the two T-shaped slots (21). The two T-shaped blocks (22) are fixedly installed on both sides of the sliding plate (18).

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