A quick-connect locking pin

Abstract

The present invention relates to the technical field of pin shafts, and specifically to a quick-connection locking pin shaft, comprising a pin shaft body, a through hole being provided on the surface of the pin shaft body, both ends of the through hole being plugged with assembly blocks, and a limit clamping piece is provided between the two sets of assembly blocks and the pin shaft body; the beneficial effect is: the quick-connection locking pin shaft proposed by the present invention can achieve quick installation and disassembly through the cooperation of the splicing block bar and the elastic clamping piece. The user only needs to insert the splicing block bar into the through hole and push it until the elastic clamping piece engages to complete the installation. Similarly, when disassembling, the splicing block bar can be removed from the through hole with a simple operation, without the need to use complex tools or cumbersome steps.

Description

Technical Field

[0001] The invention relates to the field of pin shafts, in particular to a fast-connection and locking pin shaft. Background Art

[0002] In the field of mechanical connection and assembly, pins are a common connection element and are widely used in various equipment and structures to achieve fixation and connection between components. Traditional pin connection methods often require complex assembly steps and special tools, which not only increases installation costs but also reduces work efficiency. In addition, traditional pin connection methods also have certain shortcomings in stability and reliability. Especially under heavy loads or vibration environments, the pins are prone to loosening or falling off, resulting in connection failure.

[0003] In order to solve the above problems, some improved pins have appeared on the market, but most of these pins still require specific installation tools, and the installation process is cumbersome. At the same time, these pins are also insufficient in anti-falling and anti-rotation design, and it is difficult to meet the requirements of high reliability and stability.

[0004] Therefore, it is necessary to develop a new type of quick-connect locking pin to solve the problems of traditional pin connection in installation, stability and reliability. Summary of the invention

[0005] The object of the present invention is to provide a quick-connect locking pin to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a quick-connect locking pin, comprising a pin body, a surface of the pin body being provided with a through hole, both ends of the through hole being plugged with assembly stops, and limit clamps being provided between the two sets of assembly stops and the pin body.

[0007] Preferably, the assembly card comprises two splicing baffles, the sum of the heights of the two splicing baffles is greater than the depth of the perforated hole, and an elastic card is provided at the connection of the two splicing baffles for connecting the two splicing baffles.

[0008] Preferably, the elastic card includes a card slot, an insert block and a rubber sleeve. The card slot is opened at one end of a splicing baffle bar, and the card slot is a spherical slot. One end of the insert block is fixed to one end of another splicing baffle bar, and the other end of the insert block is inserted into the card slot. The rubber sleeve is fixed to the other end of the insert block.

[0009] Preferably, the rubber sleeve is in a spherical structure, and the outer diameter of the rubber sleeve is larger than the notch diameter of the slot.

[0010] Preferably, a rubber gasket is fixed to one end where the two splicing baffles are connected. The rubber gasket is in the form of a circular ring, and the inner ring diameter of the rubber gasket is larger than the outer diameter of the rubber sleeve.

[0011] Preferably, the limit clamp includes a traction handle, a reserved groove, a ring and a rubber ring. The traction handle is an "L"-shaped rod. One end of the traction handle is fixed to the surface of the splicing baffle bar, and the other end of the traction handle is inserted into the reserved groove. The reserved groove is opened on the surface of the pin shaft body, the ring is sleeved and fixed on the other end of the traction handle, and the rubber ring is fixed in the notch of the reserved groove.

[0012] Preferably, the inner ring diameter of the rubber ring is smaller than the outer ring diameter of the collar, and after the two splicing baffles are spliced, the rubber ring abuts against one side of the collar.

[0013] Preferably, a rubber plug ring is sleeved and fixed on the rod body of the spliced ​​baffle bar, the rubber plug ring is a trapezoidal ring plate, and the outer diameter of one end of the rubber plug ring is larger than the aperture of the perforation.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The fast connection and locking pin shaft proposed in the present invention realizes quick installation and removal through the cooperation of the splicing baffle and the elastic clamp. The user only needs to insert the splicing baffle into the perforation and push it until the elastic clamp is engaged to complete the installation. Similarly, when removing, the splicing baffle can be removed from the perforation with simple operations, without the need to use complex tools or cumbersome steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a top view of the structure of the present invention;

[0018] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0021] Figure 6 It is a schematic diagram of the connection structure of the spliced ​​baffle bar and the traction handle of the present invention;

[0022] Figure 7 This is a schematic diagram of the connection structure of the splicing baffle and the insert block of the present invention;

[0023] Figure 8It is a schematic diagram of the pin body structure of the present invention.

[0024] In the figure: the pin body 1, the through hole 2, the splicing stop bar 3, the card slot 4, the plug block 5, the rubber sleeve 6, the rubber gasket 7, the traction handle 8, the reserved groove 9, the collar 10, the rubber ring 11, and the rubber plug ring 12. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 8 The present invention provides a technical solution: a pin shaft for quick connection and locking, comprising a pin shaft body 1, a through hole 2 is provided on the surface of the pin shaft body 1, and both ends of the through hole 2 are plugged with assembly stoppers, the assembly card comprises two splicing stoppers 3, the sum of the heights of the two splicing stoppers 3 is greater than the hole depth of the through hole 2, and an elastic card is provided at the connection of the two splicing stoppers 3, which is used to connect the two splicing stoppers 3. The elastic card comprises a card slot 4, an insert block 5 and a rubber sleeve 6, the card slot 4 is provided at one end of one splicing stopper 3, the card slot 4 is a spherical slot, one end of the insert block 5 is fixed at one end of the other splicing stopper 3, the other end of the insert block 5 is inserted into the card slot 4, and the rubber sleeve 6 is sleeved and fixed at the other end of the insert block 5. The rubber sleeve 6 is a spherical structure, and the outer diameter of the rubber sleeve 6 is greater than the notch diameter of the card slot 4. A rubber gasket 7 is fixed at one end of the two splicing stoppers 3, and the rubber gasket 7 is a circular ring sheet, and the inner ring diameter of the rubber gasket 7 is greater than the outer diameter of the rubber sleeve 6.

[0027] When in use, after the pin shaft body 1 passes through the hole reserved on the surface of the workpiece, the two splicing baffles 3 are respectively inserted at the two ends of the through hole 2, and the two splicing baffles 3 are pushed until the plug block 5 and the rubber sleeve 6 are inserted into the slot 4. At this time, the two rubber gaskets 7 between the two splicing baffles 3 are in contact, and when there is no external force to tension the two splicing baffles 3, the rubber sleeve 6 is tightly stuck in the slot 4, thereby realizing the anti-falling effect of the two splicing baffles 3 after being inserted into the through hole 2; in this way, the splicing baffle 3 is quickly installed after the pin shaft body 1 passes through the workpiece, preventing the pin shaft body 1 from falling off from the workpiece, and avoiding the splicing baffle 3 from falling off from the pin shaft body 1, and this operation can be completed barehanded.

[0028] Limiting clamps are provided between the two groups of splicing blockers and the pin shaft body 1. The limiting clamps include a traction handle 8, a reserved groove 9, a collar 10 and a rubber ring 11. The traction handle 8 is an "L"-shaped rod. One end of the traction handle 8 is fixed to the surface of the splicing block bar 3, and the other end of the traction handle 8 is inserted in the reserved groove 9. The reserved groove 9 is provided on the surface of the pin shaft body 1. The collar 10 is sleeved and fixed on the other end of the traction handle 8, and the rubber ring 11 is fixed in the notch of the reserved groove 9; the inner ring diameter of the rubber ring 11 is smaller than the outer ring diameter of the collar 10. After the two splicing block bars 3 are spliced, the rubber ring 11 is against one side of the collar 10; a rubber plug ring 12 is sleeved and fixed on the rod body of the splicing block bar 3. The rubber plug ring 12 is a trapezoidal ring plate, and the outer diameter of one end of the rubber plug ring 12 is larger than the aperture of the through hole 2. The reason for adding the traction handle 8 is that after the splicing baffle 3 is inserted into the through hole 2, the other end of the traction handle 8 is inserted into the reserved groove 9, so as to realize the anti-rotation limit of the splicing baffle 3, and the traction handle 8 serves as a handle when pulling the splicing baffle 3 out of the through hole 2; when the other end of the traction handle 8 is installed with the ring 10, after the other end of the traction handle 8 is inserted into the reserved groove 9, the ring 10 is blocked by the rubber ring 11, so that when there is no external force to tension the traction handle 8, the traction handle 8 will not fall off from the reserved groove 9. In this way, after the other end of the traction handle 8 is inserted into the reserved groove 9, the firmness of the two splicing baffles 3 after splicing is increased, that is, the connection stability of the splicing baffle 3 and the pin shaft body 1 is further improved, and the pin shaft body 1 is prevented from falling off from the workpiece. In this way, the traction handle 8 has multiple uses.

[0029] The detailed process of quick connection locking pin is as follows:

[0030] First, make sure that the workpiece to be connected has a hole reserved for the pin body 1 to pass through. Check whether the pin body 1 and the perforation 2 on its surface are intact, and check whether the two splicing bars 3, elastic clips (including the slot 4, the insert 5, the rubber sleeve 6) and the rubber gasket 7 are complete and functioning properly. Confirm whether the limit clip components such as the traction handle 8, the reserved slot 9, the collar 10 and the rubber ring 11 are complete.

[0031] Insert the pin body 1 from one end of the workpiece into the reserved hole until it completely passes through the workpiece to the other end. Align the two splicing baffles 3 with the two ends of the perforation 2 and prepare for insertion. Push the two splicing baffles 3 into the perforation 2 simultaneously or sequentially to ensure that they can smoothly enter and approach the depth of the perforation. During the pushing process, the plug 5 and the rubber sleeve 6 on it will gradually enter the slot 4. Since the spherical structure of the rubber sleeve 6 is larger than the notch diameter of the slot 4, when the plug 5 completely enters the slot 4, the rubber sleeve 6 will be tightly stuck in the slot due to its elasticity, forming a preliminary lock. Continue pushing until the rubber gaskets 7 on the two splicing baffles 3 contact each other, which further enhances the stability of the connection.

[0032] Fix one end of the traction handle 8 on the surface of the splicing bar 3, and prepare to insert the other end into the reserved groove 9. Insert the other end of the traction handle 8 into the reserved groove 9 until the collar 10 contacts the rubber ring 11. The inner ring diameter of the rubber ring 11 is smaller than the outer ring diameter of the collar 10, so the collar 10 will be blocked by the rubber ring 11 to prevent the traction handle 8 from falling off from the reserved groove 9. After confirming that the traction handle 8 is installed in place, gently shake the combination of the pin body 1 and the splicing bar 3 to ensure that there is no sign of looseness or falling off.

[0033] A fixed rubber plug ring 12 is sleeved on the rod body of the splicing baffle 3, and the outer diameter of one end of the rubber plug ring 12 is ensured to be larger than the aperture of the through hole 2, so as to further increase the stability and sealing of the connection. A comprehensive inspection is performed on the installation of the pin body 1, the splicing baffle 3, and the limit clamps to ensure that all parts are correctly installed and firmly connected.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-connect locking pin, comprising a pin body (1), a surface of the pin body (1) being provided with a through hole (2), characterized in that: Both ends of the through hole (2) are plugged with assembly stoppers, and limiting clamps are provided between the two sets of assembly stoppers and the pin shaft body (1).

2. A quick-connect locking pin according to claim 1, characterized in that: The assembly clamp comprises two splicing baffles (3), the sum of the heights of the two splicing baffles (3) being greater than the depth of the perforation (2), and an elastic clamp is provided at the connection of the two splicing baffles (3) for connecting the two splicing baffles (3).

3. A quick-connect locking pin according to claim 2, characterized in that: The elastic clamp comprises a clamping groove (4), an inserting block (5) and a rubber sleeve (6); the clamping groove (4) is provided at one end of a splicing baffle (3); the clamping groove (4) is a spherical groove; one end of the inserting block (5) is fixed to one end of another splicing baffle (3); the other end of the inserting block (5) is inserted into the clamping groove (4); and the rubber sleeve (6) is sleeved and fixed to the other end of the inserting block (5).

4. A quick-connect locking pin according to claim 3, characterized in that: The rubber sleeve (6) is in a spherical structure, and the outer diameter of the rubber sleeve (6) is larger than the notch diameter of the clamping slot (4).

5. A quick-connect locking pin according to claim 3, characterized in that: A rubber gasket (7) is fixed to one end of the two splicing baffles (3) where they are connected. The rubber gasket (7) is in the form of a circular ring, and the inner ring diameter of the rubber gasket (7) is greater than the outer diameter of the rubber sleeve (6).

6. A quick-connect locking pin according to claim 2, characterized in that: The limit clamp comprises a traction handle (8), a reserved groove (9), a collar (10) and a rubber ring (11); the traction handle (8) is an "L"-shaped rod; one end of the traction handle (8) is fixed on the surface of the splicing block bar (3); the other end of the traction handle (8) is inserted into the reserved groove (9); the reserved groove (9) is provided on the surface of the pin shaft body (1); the collar (10) is sleeved and fixed on the other end of the traction handle (8); and the rubber ring (11) is fixed in the notch of the reserved groove (9).

7. A quick-connect locking pin according to claim 6, characterized in that: The inner ring diameter of the rubber ring (11) is smaller than the outer ring diameter of the sleeve ring (10); after the two splicing baffles (3) are spliced, the rubber ring (11) abuts against one side of the sleeve ring (10).

8. A quick-connect locking pin according to claim 2, characterized in that: A rubber plug ring (12) is sleeved and fixed on the rod body of the spliced ​​baffle (3); the rubber plug ring (12) is in the form of a trapezoidal ring plate; and the outer diameter of one end of the rubber plug ring (12) is larger than the aperture of the through hole (2).

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