A self-positioning pin shaft

Abstract

The application relates to the technical field of pin shafts, in particular to a self-positioning pin shaft which comprises a pin shaft body, a blocking plug is inserted on the surface of the pin shaft body, a positioning assembly is arranged between the blocking plug and the pin shaft body, the blocking plug is limited by the positioning assembly after penetrating through the pin shaft body, and a lubricating mechanism is arranged on the surface of the pin shaft body. The self-positioning pin shaft inserts the high-strength blocking plug into the opening of the pin shaft body, the positioning assembly is used for limiting the blocking plug, the blocking plug is prevented from falling off, the lubricating mechanism is embedded and installed on the surface of the pin shaft body, the lubricating oil of the lubricating mechanism falls on the surface of the pin shaft, the surface of the pin shaft is lubricated, and the abrasion of the pin shaft is reduced.

Description

Technical Field

[0001] This invention relates to the field of pins, specifically a self-positioning pin. Background Technology

[0002] A pin is a standardized fastener that can be used for static fixed connection or for relative movement with the connected parts. It is mainly used at the hinge joint of two parts to form a hinge connection.

[0003] In the prior art, the pin is usually locked with a cotter pin, which is reliable and easy to disassemble.

[0004] However, the cotter pin of the pin shaft has low strength and is prone to bending and falling off. In addition, the surface of the pin shaft is prone to wear after long-term use, which causes the gap between the pin shaft and the pin hole on the workpiece surface to gradually increase, resulting in the problem of bumping. Summary of the Invention

[0005] The purpose of this invention is to provide a self-positioning pin to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-positioning pin, comprising a pin body, a blocking plug inserted into the surface of the pin body, a positioning component disposed between the blocking plug and the pin body, the blocking plug being limited by the positioning component after penetrating the pin body, and a lubrication mechanism disposed on the surface of the pin body.

[0007] Preferably, the blocking plug includes a side groove, a through hole, a stop strip, and a rubber ring. The side groove is formed on the surface of the pin body, and there are two sets of side grooves. The two sets of side grooves are symmetrically distributed about the pin body. The through hole is formed on the surface of the side groove and passes through the two sets of side grooves.

[0008] Preferably, the stop bar is movably inserted into the through hole, and a rubber ring is sleeved and fixed on the surface of the stop bar. There are two rubber rings, and the distance between the two rubber rings is equal to the distance between the two side grooves. After the stop bar is inserted into the through hole, the two sets of rubber rings are respectively located at the junction of the two side grooves and the through hole, thereby limiting the position of the stop bar.

[0009] Preferably, the positioning component includes a through hole, a positioning slot, a mounting port, and a positioning handle. The through hole is formed on the surface of the stop bar, the positioning slot is formed on the surface of the through hole, the mounting port is formed on the surface of the pin body, and the mounting port communicates with the through hole. One end of the positioning handle passes through the mounting port and the through hole and is inserted into the positioning slot. An elastic support is provided between the other end of the positioning handle and the pin body.

[0010] Preferably, the elastic support includes a slot, an elastic traction band, a screw, a connecting handle, and a tensioning plate. The slot is a cross-shaped groove and is located at the other end of the positioning handle. The elastic traction band has a cross-shaped plate structure. The middle part of the elastic traction band is fixed to the surface of the slot by a screw, and the four ends of the elastic traction band are respectively fixed to the surface of the pin body by screws.

[0011] Preferably, the connecting handle is fixed to the other end of the positioning insert, and one end of the connecting handle is fixed to the surface of the tensioning sheet.

[0012] Preferably, the lubrication mechanism includes an oil collection box, an oil-absorbing cotton block, a sealing plate, an oil inlet, an oil seepage hole, an oil-absorbing cotton sheet, and a rubber block. The oil collection box has a square frame structure, and the oil collection box and the side groove correspond one-to-one. The oil collection box is fixed inside the side groove, and the oil-absorbing cotton block is fixed in the oil collection box. There are two oil-absorbing cotton blocks, and a gap is reserved between the two oil-absorbing cotton blocks.

[0013] Preferably, the sealing strip is fixed to the surface of the oil collection box, the sealing strip blocks the groove of the oil collection box, the oil filling port is opened on the surface of the sealing strip, and the rubber block is fixed in the oil filling port.

[0014] Preferably, the oil seepage holes are formed on the surface of the sealing sheet, and there are two sets of oil seepage holes. The two sets of oil seepage holes are symmetrically distributed about the oil injection port, and the oil-absorbing cotton sheet is fixed in the oil seepage holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The self-positioning pin proposed in this invention inserts a high-strength blocking insert into the cotter pin opening of the pin body, and uses a positioning component to limit the blocking insert to prevent it from falling off. In addition, a lubrication mechanism is embedded in the surface of the pin body, and the lubricating oil extended from the lubrication mechanism drips onto the surface of the pin to achieve surface lubrication and reduce pin wear. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the baffle installation structure of the present invention;

[0019] Figure 3 This is a half-sectional schematic diagram of the end structure of the pin body of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the stop bar and the positioning handle of the present invention;

[0021] Figure 5 This is a schematic diagram of the positioning handle structure of the present invention;

[0022] Figure 6 This is a schematic diagram of a half-section of the oil collection box structure of the present invention.

[0023] In the diagram: 1. Pin body; 2. Side groove; 3. Through hole; 4. Stop bar; 5. Rubber ring; 6. Through hole; 7. Positioning slot; 8. Mounting port; 9. Positioning insert; 10. Slot; 11. Elastic traction belt; 12. Screw; 13. Connecting handle; 14. Tensioning plate; 15. Oil collection box; 16. Oil-absorbing cotton block; 17. Sealing plate; 18. Oil injection port; 19. Oil seepage hole; 20. Oil-absorbing cotton sheet; 21. Rubber block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please see Figures 1-2 This invention provides a technical solution: a self-positioning pin, including a pin body 1, a blocking insert inserted into the surface of the pin body 1, a positioning component between the blocking insert and the pin body 1, the blocking insert being limited by the positioning component after penetrating the pin body 1, and a lubrication mechanism provided on the surface of the pin body 1; after the high-strength blocking insert is inserted into the cotter pin of the pin body 1, the positioning component limits the blocking insert to prevent it from falling off, and the lubrication mechanism is embedded in the surface of the pin body 1, the lubricating oil extending from the lubrication mechanism drips onto the surface of the pin, thereby lubricating the pin surface and reducing pin wear.

[0027] Example 2

[0028] See attached document Figure 3 and Figure 4 , Figure 5Based on Embodiment 1, in order to limit the position of the stop bar 4 after installation, the blocking insert includes a side groove 2, a through hole 3, a stop bar 4, and a rubber ring 5. The side groove 2 is formed on the surface of the pin body 1, and there are two sets of side grooves 2, which are symmetrically distributed about the pin body 1. The through hole 3 is formed on the surface of the side groove 2 and passes through the two sets of side grooves 2. The stop bar 4 is movably inserted into the through hole 3. The rubber ring 5 is sleeved and fixed on the surface of the stop bar 4. There are two rubber rings 5, and the distance between the two rubber rings 5 ​​is equal to the distance between the two side grooves 2. After the stop bar 4 is inserted into the through hole 3, the two sets of rubber rings 5 ​​are respectively located at the junction of the two side grooves 2 and the through hole 3, thereby limiting the position of the stop bar 4. The positioning component includes a through hole 6, a positioning slot 7, an installation port 8, and a positioning handle 9. 6 is opened on the surface of the stop bar 4, the positioning slot 7 is opened on the surface of the through hole 3, the mounting port 8 is opened on the surface of the pin body 1, the mounting port 8 and the through hole 3 are connected, one end of the positioning handle 9 passes through the mounting port 8 and the through hole 6 and is inserted into the positioning slot 7, and the other end of the positioning handle 9 is provided with an elastic support between it and the pin body 1; the elastic support includes a slot 10, an elastic traction band 11, a screw 12, a connecting handle 13 and a tensioning plate 14, the slot 10 is a "+" shaped slot, the slot 10 is opened at the other end of the positioning handle 9, the elastic traction band 11 is a "+" shaped plate structure, the middle part of the elastic traction band 11 is fixed to the surface of the slot 10 by a screw 12, and the four ends of the elastic traction band 11 are respectively fixed to the surface of the pin body 1 by screws 12.

[0029] Example 3

[0030] See attached document Figure 6 Based on Embodiment 2, the lubrication mechanism includes an oil collection box 15, an oil-absorbing cotton block 16, a sealing plate 17, an oil inlet 18, an oil seepage hole 19, an oil-absorbing cotton sheet 20, and a rubber block 21. The oil collection box 15 has a square frame structure, and the oil collection box 15 corresponds one-to-one with the side groove 2. The oil collection box 15 is fixed inside the side groove 2. The oil-absorbing cotton block 16 is fixed in the oil collection box 15. There are two oil-absorbing cotton blocks 16, and a gap is reserved between the two oil-absorbing cotton blocks 16. The sealing plate 17 is fixed on the surface of the oil collection box 15 and seals the groove of the oil collection box 15. The oil inlet 18 is opened on the surface of the sealing plate 17, and the rubber block 21 is fixed in the oil inlet 18. The oil seepage hole 19 is opened on the surface of the sealing plate 17. There are two sets of oil seepage holes 19, and the two sets of oil seepage holes 19 are symmetrically distributed about the oil inlet 18. The oil-absorbing cotton sheet 20 is fixed in the oil seepage hole 19.

[0031] In actual use, firstly, lubricating oil is drawn out with a syringe, then the syringe is inserted through the rubber block 21 and injected into the oil collection box 15. The oil-absorbing cotton block 16 is saturated with lubricant. After the needle is pulled out, the pin body 1 is passed through the pin hole on the surface of the workpiece. Then, with one hand, the tensioning plate 14 is pulled to tension the positioning handle 9. The positioning handle 9 supports the deformation of the elastic traction belt 11. With the other hand, the stop bar 4 is inserted into the through hole 3 until the two sets of rubber rings 5 ​​are symmetrically distributed about the through hole 3. At this time, the tensioning plate 14 is released, and the elastic traction belt 11 rebounds and pulls the positioning handle 9 through the installation port 8 and the through hole 6 and then into the positioning slot 7, thereby limiting the stop bar 4. The lubricating oil inside the oil collection box 15 is saturated with the oil-absorbing cotton block 20 and seeps out onto the surface of the pin body 1, reducing the wear on the surface of the pin body 1.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-positioning pin, comprising a pin body (1), characterized in that: A blocking insert is inserted into the surface of the pin body (1). A positioning component is provided between the blocking insert and the pin body (1). The blocking insert passes through the pin body (1) and is limited by the positioning component. A lubrication mechanism is provided on the surface of the pin body (1). The blocking insert includes a side groove (2), a through hole (3), a stop bar (4), and a rubber ring (5). The side groove (2) is opened on the surface of the pin body (1). There are two sets of side grooves (2). The two sets of side grooves (2) are symmetrically distributed about the pin body (1). The through hole (3) is opened on the surface of the side groove (2) and passes through the two sets of side grooves (2). The positioning component includes a through hole (6), a positioning slot (7), an installation port (8), and a positioning handle (9). The through hole (6) is opened on the surface of the stop bar (4). The positioning slot (7) is opened on the surface of the through hole (3). An mounting opening (8) is opened on the surface of the pin body (1). The mounting opening (8) and the through hole (3) are connected. One end of the positioning handle (9) passes through the mounting opening (8) and the through hole (6) and is inserted into the positioning slot (7). An elastic support is provided between the other end of the positioning handle (9) and the pin body (1). The elastic support includes a slot (10), an elastic traction band (11), a screw (12), a connecting handle (13), and a tensioning plate (14). The slot (10) is a cross-shaped slot. The slot (10) is opened at the other end of the positioning handle (9). The elastic traction band (11) is a cross-shaped plate structure. The middle part of the elastic traction band (11) is fixed to the surface of the slot (10) by a screw (12). The four ends of the elastic traction band (11) are fixed to the surface of the pin body (1) by screws (12).

2. The self-positioning pin according to claim 1, characterized in that: The stop bar (4) is movably inserted into the through hole (3). The rubber ring (5) is sleeved and fixed on the surface of the stop bar (4). There are two rubber rings (5). The distance between the two rubber rings (5) is equal to the distance between the two side grooves (2). After the stop bar (4) is inserted into the through hole (3), the two sets of rubber rings (5) are respectively located at the junction of the two side grooves (2) and the through hole (3), thereby limiting the stop bar (4).

3. A self-positioning pin according to claim 1, characterized in that: The connecting handle (13) is fixed to the other end of the positioning insert (9), and one end of the connecting handle (13) is fixed to the surface of the tensioning plate (14).

4. A self-positioning pin according to claim 1, characterized in that: The lubrication mechanism includes an oil collection box (15), an oil-absorbing cotton block (16), a sealing plate (17), an oil inlet (18), an oil seepage hole (19), an oil-absorbing cotton sheet (20), and a rubber block (21). The oil collection box (15) has a square frame structure. The oil collection box (15) and the side groove (2) correspond one-to-one. The oil collection box (15) is fixed inside the side groove (2). The oil-absorbing cotton block (16) is fixed in the oil collection box (15). There are two oil-absorbing cotton blocks (16), and a gap is reserved between the two oil-absorbing cotton blocks (16).

5. A self-positioning pin according to claim 4, characterized in that: The sealing strip (17) is fixed on the surface of the oil collection box (15), the sealing strip (17) seals the groove of the oil collection box (15), the oil filling port (18) is opened on the surface of the sealing strip (17), and the rubber block (21) is fixed in the oil filling port (18).

6. A self-positioning pin according to claim 5, characterized in that: The oil seepage holes (19) are opened on the surface of the sealing sheet (17). There are two sets of oil seepage holes (19), which are symmetrically distributed about the oil injection port (18). The oil-absorbing cotton sheet (20) is fixed in the oil seepage holes (19).

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