Pin shaft with high mounting stability

Abstract

The invention relates to the technical field of pin shafts, in particular to a pin shaft with high mounting stability, which comprises a pin shaft body, a guide-in groove is formed in the surface of the pin shaft body, a limiting strip is inserted into the guide-in groove, a traction block is integrally formed on the surface of the limiting strip, an assembling block is fixed on the surface of the traction block, and the assembling block is inserted into one end of the pin shaft body. Positioning inserting blocks are inserted into the two sides of one end of the pin shaft body, and one ends of the positioning inserting blocks are inserted into the surfaces of the assembling blocks. The pin shaft with the high mounting stability has the beneficial effects that the pin shaft is firmly locked in the mounting process by introducing the structures of the limiting strips and the splicing blocks. After the limiting strip is inserted into the guide-in groove, the pin shaft is effectively prevented from loosening and falling off through cooperation of the splicing block and the splicing groove and locking of the positioning insertion block and the positioning groove, and the installation stability is improved.

Description

Technical Field

[0001] The invention relates to the field of pin shafts, in particular to a pin shaft with high installation stability. Background Art

[0002] In the field of mechanical assembly, pins are a common connector widely used in various equipment and structures for connection, fixing or transmitting force. However, traditional pins often have the problem of insufficient stability during installation, especially when they need to withstand large loads or vibration environments. Pins are prone to loosening or even falling off, causing equipment or structure failures, affecting production efficiency and safety.

[0003] In order to improve the installation stability of the pin shaft, the prior art generally adopts methods such as adding a locking device, using special materials or improving the installation process, etc. However, these methods often have disadvantages such as complex operation, high cost or limited application range, and are difficult to meet the needs under various complex working conditions.

[0004] Therefore, the present invention proposes a pin shaft with high installation stability, aiming to improve the installation stability of the pin shaft through ingenious structural design while maintaining the simplicity of operation and reasonable cost. Summary of the invention

[0005] The object of the present invention is to provide a pin shaft with high installation stability to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pin shaft with high installation stability, comprising a pin shaft body, a guide groove is provided on the surface of the pin shaft body, a limit strip is inserted inside the guide groove, a traction block is integrally formed on the surface of the limit strip, an assembling block is fixed on the surface of the traction block, the assembling block is inserted into one end of the pin shaft body, positioning blocks are inserted on both sides of one end of the pin shaft body, and one end of the positioning block is inserted into the surface of the assembling block.

[0007] Preferably, the introduction groove is a "U"-shaped groove, the limit bar is a cylindrical structure, the rod length of the limit bar is greater than the rod diameter of the pin shaft body, the traction block is a square block, and the rod length of the traction block is less than the depth of the introduction groove.

[0008] Preferably, two parallel side walls of the introduction groove are provided with sliding grooves, the sliding grooves are "convex" shaped grooves, and the interior of the sliding grooves is slidably connected with a sliding bar, the sliding bar is "convex" shaped, and the sliding bar is fixed on the surface of the traction block.

[0009] Preferably, a rubber clamp is fixed on the surface of the slide bar, the rubber clamp is an arc-shaped strip, the long side length of the rubber clamp is equal to the long side length of the slide groove, and the rubber clamp is clamped between the slide bar and the slide groove to generate elastic deformation.

[0010] Preferably, one end of the pin shaft body is provided with an assembly groove, which is communicated with the guiding groove. The assembly block is inserted into the assembly groove, and the assembly groove and the guiding groove form a "cross" shaped groove.

[0011] Preferably, side grooves are provided on both sides of one end of the pin shaft body. An installation groove is provided on the surface of the side groove, and a through hole is provided on the surface of the installation groove. The through hole communicates the assembly groove and the side groove. The positioning plug block penetrates through the through hole and is inserted into the positioning groove, and the positioning groove is provided on the surface of the assembly block.

[0012] Preferably, the notch size of the through hole is smaller than the notch size of the installation groove. The plate length of the positioning plug block is greater than the depth of the through hole. One end of the positioning plug block extending into the positioning groove is provided with an inclined surface, and the inclined surface faces away from the limiting strip.

[0013] Preferably, a pull ring is fixed to the other end of the positioning plug block. The pull ring is in the shape of a "C" shaped strip. An elastic band is inserted into the pull ring, and both ends of the elastic band are fixed to the surface of the installation groove, and both ends of the elastic band are respectively distributed on both sides of the through hole.

[0014] Preferably, a picking groove is provided on both the top surface and the bottom surface of the assembly block. The picking groove is in the shape of a "U" shaped groove.

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

[0016] The pin shaft with high installation stability proposed by the present invention realizes the firm locking of the pin shaft during the installation process by introducing the structures of the limiting strip and the assembly block. After the limiting strip is inserted into the guiding groove, through the cooperation of the assembly block and the assembly groove, and the locking of the positioning plug block and the positioning groove, the loosening and falling off of the pin shaft are effectively prevented, and the installation stability is improved.

[0017] The installation and disassembly processes are simple and fast. The limiting strip and the assembly block can be easily pushed into the corresponding grooves through the traction block, and during disassembly, it is only necessary to tension the positioning plug block through the pull ring, without the need to use additional tools or complex operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a front view of the structure of the present invention;

[0020] Figure 3 is Figure 2 a sectional view of the structure at A-A in

[0021] Figure 4 is Figure 3 a schematic enlarged view of the structure at A in

[0022] Figure 5 is a sectional view of the structure at B-B in 2;

[0023] Figure 6 It is a schematic diagram of the connection structure between the limit strip and the traction block of the present invention;

[0024] Figure 7 This is a schematic diagram of the pin body structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the positioning plug structure of the present invention.

[0026] In the figure: pin body 1, introduction groove 2, limit strip 3, traction block 4, slide bar 5, slide groove 6, assembly groove 7, assembly block 8, side groove 9, installation groove 10, through-hole 11, positioning plug block 12, inclined surface 13, positioning groove 14, elastic band 15, pull ring 16, rubber clamp strip 17, and pick-up groove 18. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 8 The present invention provides a technical solution: a pin shaft with high installation stability, comprising a pin shaft body 1, a guide groove 2 is provided on the surface of the pin shaft body 1, a limit strip 3 is inserted inside the guide groove 2, a traction block 4 is integrally formed on the surface of the limit strip 3, the guide groove 2 is a "U"-shaped groove, the limit strip 3 is a cylindrical structure, the rod length of the limit strip 3 is greater than the rod diameter of the pin shaft body 1, the traction block 4 is a square block, and the rod length of the traction block 4 is less than the depth of the guide groove 2; two parallel side walls of the guide groove 2 are provided with a slide groove 6, the slide groove 6 is a "convex"-shaped groove, and a slide bar 5 is slidably connected inside the slide groove 6, the slide bar 5 is a "convex"-shaped bar, and the slide bar 5 is fixed on the surface of the traction block 4; a rubber clamp 17 is fixed on the surface of the slide bar 5, the rubber clamp 17 is an arc-shaped bar, the long side length of the rubber clamp 17 is equal to the long side length of the slide groove 6, and the rubber clamp 17 is clamped between the slide bar 5 and the slide groove 6 to produce elastic deformation.

[0029] When in use, when the pin shaft body 1 is installed on the workpiece, all the structures inside the guiding groove 2 need to be withdrawn. After the shaft body of the pin shaft body 1 penetrates the hole on the surface of the workpiece, the traction block 4 is inserted into the guiding groove 2 until the limiting strip 3 abuts against the arc surface at one end of the guiding groove 2. In order to ensure that the parts of both ends of the limiting strip 3 extending out of the guiding groove 2 are of equal length, a sliding strip 5 and a sliding groove 6 are provided between the guiding groove 2 and the traction block 4. That is, when the traction block 4 is pushed into the guiding groove 2, the sliding strip 5 slides along the sliding groove 6, and the rubber clamping strip 17 clamps between the sliding strip 5 and the sliding groove 6 to increase friction and prevent the traction block 4 from sliding randomly in the guiding groove 2.

[0030] A fitting block 8 is fixed on the surface of the traction block 4. The fitting block 8 is inserted into one end of the pin shaft body 1. Positioning inserts 12 are inserted on both sides of one end of the pin shaft body 1. One end of the positioning insert 12 is inserted into the surface of the fitting block 8; a fitting groove 7 is formed at one end of the pin shaft body 1. The fitting groove 7 communicates with the guiding groove 2. The fitting block 8 is inserted into the fitting groove 7. The fitting groove 7 and the guiding groove 2 form a "cross" groove; side grooves 9 are formed on both sides of one end of the pin shaft body 1. An installation groove 10 is formed on the surface of the side groove 9. A through hole 11 is formed on the surface of the installation groove 10. The through hole 11 communicates the fitting groove 7 and the side groove 9. The positioning insert 12 penetrates through the through hole 11 and is inserted into the positioning groove 14. The positioning groove 14 is formed on the surface of the fitting block 8; the notch size of the through hole 11 is smaller than the notch size of the installation groove 10. The plate length of the positioning insert 12 is greater than the depth of the through hole 11. An inclined surface 13 is provided at one end of the positioning insert 12 extending into the positioning groove 14. The inclined surface 13 faces away from the limiting strip 3; a pull ring 16 is fixed at the other end of the positioning insert 12. The pull ring 16 is in the shape of a "C"-shaped strip. An elastic band 15 is inserted into the inside of the pull ring 16. Both ends of the elastic band 15 are fixed on the surface of the installation groove 10, and both ends of the elastic band 15 are respectively distributed on both sides of the through hole 11; a picking groove 18 is formed on both the top surface and the bottom surface of the fitting block 8. The picking groove 18 is in the shape of a "U"-shaped groove.

[0031] When in use, during the process of pushing the traction block 4 toward the introduction groove 2, after the assembling block 8 is pushed into the assembling groove 7, as the assembling block 8 continues to be pushed, the assembling block 8 pushes the positioning blocks 12 on both sides along the inclined surface 13 to slide along the corresponding through-holes 11, at which time the positioning blocks 12 pull the corresponding elastic bands 15 to produce deformation, until the limiting strip 3 abuts against the arc surface at the end of the introduction groove 2, at which time the assembling block 8 is completely inserted into the assembling groove 7, and at this time the positioning groove 14 corresponds to the positioning block 12, and the elastic band 15 rebounds to drive the positioning block 12 to move back. One end of the positioning block 12 is inserted into the positioning groove 14 to prevent the assembling block 8 from falling off the assembling groove 7, thereby achieving a firm installation of the limit strip 3, and the problem of the surface limit strip 3 falling off causing the pin shaft body 1 to fall off the workpiece; when the pin shaft body 1 needs to be disassembled, two fingers are respectively hooked on the two pull rings 16, and the corresponding positioning block 12 is pulled out of the corresponding positioning groove 14. At this time, there is no limit between the assembling block 8 and the assembling groove 7, so the assembling block 8 is pulled out of the assembling groove 7, and the limit strip 3 is pulled out of the introduction groove 2 by the traction block 4.

[0032] Pass the pin body 1 through the hole on the workpiece; insert the traction block and the limit strip: align the traction block 4 (with the limit strip 3) with the introduction groove 2 and push it in until the limit strip 3 rests on the arc surface at one end of the introduction groove 2. During the pushing process of the traction block 4, the slide bar 5 slides in the slide groove 6 to ensure the smooth movement of the traction block 4, and at the same time the rubber clamp strip 17 increases the friction to prevent slipping. The traction block 4 continues to advance, and the assembly block 8 on its surface enters the assembly groove 7 (which is connected to the introduction groove 2 to form a "cross" groove). The assembly block 8 pushes the positioning blocks 12 on both sides along the inclined surface 13, and the positioning blocks 12 slide through the through opening 11 (connecting the assembly groove 7 and the side groove 9), and the elastic band 15 is stretched to produce deformation. When the limit strip 3 is completely against the end of the introduction groove 2, the assembly block 8 is completely inserted into the assembly groove 7, and the positioning groove 14 corresponds to the positioning block 12. At this time, the elastic band 15 rebounds, driving the positioning block 12 to insert into the positioning groove 14, locking the assembly block 8 to prevent it from falling off. When disassembly is required, hook the pull ring 16 (fixed at the other end of the positioning block 12) with your fingers, and pull the positioning block 12 to pull it out of the positioning groove 14. After the positioning block 12 is pulled out, the assembly block 8 loses its limit position with the assembly groove 7, and the assembly block 8 can be pulled out of the assembly groove 7. Subsequently, the limit bar 3 is pulled out of the introduction groove 2 by the traction block 4. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pin with high installation stability, comprising a pin body (1), characterized in that: The surface of the pin shaft body (1) is provided with an inlet groove (2). A limit strip (3) is inserted into the interior of the inlet groove (2). A traction block (4) is integrally formed on the surface of the limit strip (3). A fitting block (8) is fixed on the surface of the traction block (4). The fitting block (8) is inserted into one end of the pin shaft body (1). Positioning blocks (12) are inserted into both sides of one end of the pin shaft body (1). One end of the positioning block (12) is inserted into the surface of the fitting block (8).

2. A pin shaft with high installation stability according to claim 1, characterized in that: The inlet groove (2) is a "U"-shaped groove. The limit strip (3) is of a cylindrical structure. The rod length of the limit strip (3) is greater than the rod diameter of the pin shaft body (1). The traction block (4) is a square block. The rod length of the traction block (4) is less than the depth of the inlet groove (2).

3. A pin shaft with high installation stability according to claim 1, characterized in that: Sliding grooves (6) are opened on both side walls of the inlet groove (2) that are parallelly distributed. The sliding groove (6) is a "convex"-shaped groove. A sliding strip (5) is slidably connected to the interior of the sliding groove (6). The sliding strip (5) is a "convex"-shaped strip. The sliding strip (5) is fixed on the surface of the traction block (4).

4. A pin shaft with high installation stability according to claim 3, characterized in that: A rubber clamping strip (17) is fixed on the surface of the sliding strip (5). The rubber clamping strip (17) is an arc-shaped strip. The length of the long side of the rubber clamping strip (17) is equal to the length of the long side of the sliding groove (6). The rubber clamping strip (17) is clamped between the sliding strip (5) and the sliding groove (6) to generate elastic deformation.

5. The pin shaft with high installation stability according to claim 1, characterized in that: A fitting groove (7) is opened at one end of the pin shaft body (1). The fitting groove (7) communicates with the inlet groove (2). The fitting block (8) is inserted into the fitting groove (7). The fitting groove (7) and the inlet groove (2) form a "cross"-shaped groove.

6. A pin shaft with high installation stability according to claim 5, characterized in that: Edge grooves (9) are opened on both sides of one end of the pin shaft body (1). An installation groove (10) is opened on the surface of the edge groove (9). A through hole (11) is opened on the surface of the installation groove (10). The through hole (11) communicates the fitting groove (7) and the edge groove (9). The positioning block (12) passes through the through hole (11) and is then inserted into a positioning groove (14). The positioning groove (14) is opened on the surface of the fitting block (8).

7. A pin shaft with high installation stability according to claim 6, characterized in that: The notch size of the through hole (11) is smaller than the notch size of the installation groove (10). The plate length of the positioning block (12) is greater than the depth of the through hole (11). One end of the positioning block (12) extending into the positioning groove (14) is provided with an inclined surface (13). The inclined surface (13) faces away from the limit strip (3).

8. The pin shaft with high installation stability according to claim 7, characterized in that: A pull ring (16) is fixed to the other end of the positioning block (12). The pull ring (16) is a "C"-shaped strip. An elastic band (15) is inserted into the interior of the pull ring (16). Both ends of the elastic band (15) are fixed to the surface of the installation groove (10). And both ends of the elastic band (15) are respectively distributed on both sides of the through hole (11).

9. The pin shaft with high installation stability according to claim 1, characterized in that: Digging grooves (18) are opened on both the top surface and the bottom surface of the fitting block (8). The digging groove (18) is a "U"-shaped groove.

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