A spring positioning pin

Abstract

The present invention discloses a spring locating pin, which relates to the technical field of locating pins and includes a spring locating pin body, wherein the spring locating pin body includes a lap plate 1, and lap plate 2 is fixedly connected to the outer surfaces of both sides of the lap plate 1, and the two lap plates 2 are arranged with the center line of the lap plate 1 as the symmetry axis. The inner movably sleeve of the lap plate 2 on the right side is provided with a spring pull-out compressor, and the spring pull-out compressor includes a pull ring. The inner movably installed spring side clamping blocks of the lap plate 2 include clamping blocks. The present invention utilizes three recessed grooves on the outer surface of one side of the arc-shaped clamping strip to clamp onto the surface of the spring, utilizes anti-slip grooves to increase the friction between the spring and the spring, pulls the pull strip to clamp the hook onto the surface of the spring to limit its position, and pulls the pull ring to pull the connecting rod outward to compress the spring.

Description

Technical Field

[0001] The present invention relates to the technical field of locating pins, and in particular to a spring locating pin. Background Art

[0002] The existing thermal power plant support and hanger system has a large number of spring supports and hangers, and the system's cold load is complex. The locating pins need to be removed before the system is put into operation, and the springs inside the locating pins will be subjected to great pressure. When removing the locating pins, there are factors such as the large number of locating pins, heavy tasks, and uneven force on the springs. The load pressure of the springs will be relatively large, and the elastic force will gradually decrease. The springs inside the spring locating pins need to be replaced many times. Traditional removal methods include using crowbars to pry, pipe wrenches to twist, and flame cutting, but they are all difficult to operate, take a long time to remove, and have many safety issues. In addition, there is the defect of incomplete removal. Sometimes, for the convenience of maintenance, the locating pins need to be reused. Traditional removal methods are highly destructive to the locating pins, and the recovery rate and utilization rate of the locating pins are low.

[0003] The cam is threaded with a thread on the middle portion of the rotating screw, and the bottom portion of the rotating screw is rotatably connected to an arc support leg. The nuts at both ends of the main bracket are respectively threadedly connected to the middle portion of the tightening screw. The middle portion of the main bracket is provided with a bolt hole, and the pin tightening clip is a rectangular block. A barb is provided on one side of the bottom of the pin tightening clip. The bolt holes are provided on the upper and middle portions of the pin tightening clip perpendicular to the side with the barb. The utility model utilizes the pin tightening clip to clamp the spring locating pin, and then lifts the main bracket by tightening the screw to completely remove the locating pin. The removal operation is simple, greatly saves manpower, reduces labor intensity, and improves the recovery rate of the locating pin.

[0004] The existing technology has the following problems:

[0005] 1. When removing the locating pins, there are many factors, the task is heavy, and the spring force is uneven. The load pressure of the spring will be relatively large, and the elastic force will gradually decrease. The spring inside the spring locating pin needs to be replaced many times;

[0006] 2. When replacing the spring inside the latch, you need to manually press both ends of the spring to snap it into the interior of the spring pin. When squeezing, the spring may splash out due to the bending force of the spring. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems in the prior art that when removing the locating pins, there are many problems, the task is heavy, the spring is subjected to uneven force, the load pressure of the spring is relatively large, the elastic force will gradually decrease, and the spring inside the spring locating pin needs to be replaced multiple times. A spring locating pin is proposed.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a spring locating pin, comprising a spring locating pin body, the spring locating pin body comprising a lap plate 1, and a lap plate 2 is fixedly connected to the outer surfaces of both sides of the lap plate 1, and the two lap plates 2 are arranged with the center line of the lap plate 1 as the axis of symmetry, and the internal movably sleeved spring pull-out compressor of the lap plate 2 on the right side includes a pull ring, and the internal movably installed spring side clamping block of the lap plate 2, and the spring side clamping block includes a clamping block, and the inner bottom outer surface of the lap plate 2 on the left side is fixedly installed with an impact buffer, and the impact buffer includes a sleeve.

[0009] A further improvement of the technical solution of the present invention is that: a semicircular groove is provided on the top outer surface of the lap plate one, an inward recessed groove one is provided on the inner outer surface of the semicircular groove on the right side, a snap-fit fixing block is detachably installed on the inner outer surface of the inward recessed groove one, a handheld fixing block is fixedly connected to the bottom outer surface of the lap plate one, and an arc-shaped spring lap strip is fixedly connected to the inner side of the lap plate two on the right side and at the edge of the semicircular groove.

[0010] A further improvement of the technical solution of the present invention is that: a pulling rod is fixedly connected to the left outer surface of the pull ring, and the outer surface of the pulling rod is movably overlapped on the inner surface of the second overlapping plate on the right side; a overlapping pulling plate is fixedly connected to the other end of the pulling rod and the overlapping pulling plate is located in the middle position on the inner side of the two overlapping plates; limiting grooves are provided on the outer surfaces of both sides of the overlapping pulling plate and the inner surface of the limiting grooves is movably overlapped on the outer surface of one side of the arc-shaped spring overlapping strip.

[0011] A further improvement of the technical solution of the present invention is that: an arc-shaped clip strip is fixedly connected to the top outer surface of the overlapping pull plate, and an inward-recessed groove three is provided on the inner outer surface of the arc-shaped clip strip, and an anti-slip pattern is fixedly connected to the inner outer surface of the inward-recessed groove three, and an empty groove is provided inside the overlapping pull plate and the arc-shaped clip strip, and a pull strip is movably overlapped on the inner surface of the empty groove, and a hook is fixedly connected to the side surface of the pull strip at the top.

[0012] A further improvement of the technical solution of the present invention is that: a second recessed groove is provided on the front side of the clamping block and located at the top edge position, a hollow trapezoidal elastic strip is fixedly connected to the inner outer surface of the second recessed groove, a C-shaped clamping ring is fixedly connected to the outer surface of one side of the hollow trapezoidal elastic strip, a wear-resistant soft strip is fixedly connected to the inner outer surface of the C-shaped clamping ring, and an extrusion limiting soft strip is fixedly connected to the outer surface of the C-shaped clamping ring and located at the upper and lower edge positions.

[0013] A further improvement of the technical solution of the present invention is that: small hole grooves are opened on the outer surfaces of both sides of the clamping block, and semicircular extrusion soft strips are fixedly connected to the two side surfaces of the clamping block and at the edge positions of the small hole grooves, and the semicircular extrusion soft strips and the small hole grooves are respectively clamped on the inner surface of the sunken groove one.

[0014] A further improvement of the technical solution of the present invention is that: a fixed disc is movably installed on the left inner surface of the shell, an elastic strip is fixedly connected to the outer surface of one side of the fixed disc, a lap plate three is fixedly connected to the inner side of the shell and located in the middle position, a telescopic column is movably connected to the outer surface of the lap plate three, and one end of the telescopic column is fixedly connected to one end of the elastic strip on the left side.

[0015] A further improvement of the technical solution of the present invention is that: an impact soft plate is fixedly connected to the other end of the telescopic column, and a fixing strip is fixedly connected to the left outer surface of the lap plate three and at the edge positions on both sides, and one side surface of the fixing strip is arranged on the inner surface of the shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the side surface of the spring side clamping block is fixed with the clamping fixing block, and the two ends of the spring are respectively clamped on the inner surface of the spring side clamping block and the arc-shaped clamping strip. The spring is compressed by pulling the spring puller and compressor, and the semicircular grooves on the outer surfaces of the two lap plates are used to overlap the spring in the appropriate position. The spring on the surface of the spring side clamping block and the arc-shaped clamping strip is clamped with one end to the appropriate buckle. The spring puller and compressor is released and the spring is automatically collapsed by the elasticity of the spring, and the spring is clamped to the position where the guide needs to be clamped.

[0018] 2. In the present invention, the three indented grooves on the outer surface of one side of the arc-shaped clip strip are used to clip onto the spring surface, and the anti-slip grooves are used to increase the friction between the spring and the clip strip. The pull strip is pulled to clip the hook onto the spring surface to limit its position. The pull ring is pulled to pull the pull rod outward to compress the spring.

[0019] 3. In the present invention, when the pull ring is released, the compressed spring will generate a large reverse pushing force, which will quickly push the overlapping pulling plate inward, and will collide with the surface of the impact soft plate. After the collision, the impact soft plate will squeeze the telescopic column, and the elastic strip on the inner surface of the shell will be used to elastically buffer the squeezing of the telescopic column.

[0020] 4. In the present invention, the spring is clamped to the surface of the clamping block and is clamped with the C-shaped clamping ring on the inner surface of the second inner groove. When overlapping, the wear-resistant soft strip is used to increase the friction between the spring and the spring. When extruding, the extrusion limit soft strip is used to protect the surface of the spring. When extruding, the hollow trapezoidal elastic soft strip is used to elastically buffer the extrusion of the C-shaped clamping ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of a three-dimensional bottom structure of a lap plate according to the present invention;

[0024] Figure 3 This is a schematic diagram of a three-dimensional top view of the structure of a lap plate of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the spring pull-compressor of the present invention;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the spring side clamping block of the present invention;

[0027] Figure 6 It is a schematic diagram of a three-dimensional cross-sectional structure of the impact buffer of the present invention.

[0028] Legend:

[0029] 1. Spring locating pin body;

[0030] 2. Lap plate 1; 21. Lap plate 2; 22. Semicircular groove; 23. Indented groove 1; 24. Snap-fit fixing block; 25. Hand-held fixing block; 26. Arc spring lap strip;

[0031] 3. Spring side clamping block; 31. Clamping block; 32. Small hole groove; 33. Semicircular extrusion soft strip; 34. Second indented groove; 35. Hollow trapezoidal elastic soft strip; 36. C-shaped clamping ring; 37. Extrusion limit soft strip; 38. Wear-resistant soft strip;

[0032] 4. Impact buffer; 41. Housing; 42. Lap plate 3; 43. Fixing bar; 44. Fixing disc; 45. Elastic strip; 46. Telescopic column; 47. Impact soft plate;

[0033] 5. Spring pull-out compressor; 51. Pull ring; 52. Pull rod; 53. Overlap pull plate; 54. Limiting groove; 55. Arc-shaped snap-in strip; 56. Indented groove three; 57. Anti-slip groove; 58. Pull strip; 59. Hook. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] like Figure 1-6As shown, the present invention provides a spring locating pin, including a spring locating pin body 1, the spring locating pin body 1 includes a lap plate 2, and a lap plate 2 21 is fixedly connected to the outer surfaces of both sides of the lap plate 2. The two lap plates 21 are arranged with the center line of the lap plate 2 as the symmetry axis. The inside of the right lap plate 2 21 is movably sleeved with a spring pull-out compressor 5, and the spring pull-out compressor 5 includes a pull ring 51. The inside of the lap plate 2 21 is movably installed with a spring side clamping block 3, and the spring side clamping block 3 includes a clamping block 31. The inner bottom outer surface of the left lap plate 2 21 is fixedly installed with an impact buffer 4, and the impact buffer 4 includes a sleeve 41.

[0038] Furthermore, the side surface of the spring side clamping block 3 is fixed by cooperating with the clamping fixing block 24, and the two ends of the spring are respectively clamped on the inner surface of the spring side clamping block 3 and the arc-shaped clamping strip 55, and the spring pulling and compressor 5 is pulled to compress the spring. The semicircular groove 22 on the outer surface of the lap plate 21 is used to overlap to the appropriate position, and one end of the spring on the surface of the spring side clamping block 3 and the arc-shaped clamping strip 55 is clamped to the appropriate buckle. The spring pulling and compressor 5 is released and the elasticity of the spring is used to collapse it by itself, and the spring is clamped to the position where the guide needs to be clamped.

[0039] Example 2

[0040] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a pulling rod 52 is fixedly connected to the left outer surface of the pull ring 51, and the outer surface of the pulling rod 52 is movably overlapped on the inner surface of the right overlapping plate 21, and the other end of the pulling rod 52 is fixedly connected to the overlapping pulling plate 53, and the overlapping pulling plate 53 is located in the middle position of the inner side of the two overlapping plates 21, and limiting grooves 54 are provided on the outer surfaces of both sides of the overlapping pulling plate 53, and the inner surface of the limiting groove 54 is movably overlapped on the outer surface of one side of the arc-shaped spring overlapping strip 26, and an arc-shaped clipping strip 55 is fixedly connected to the top outer surface of the overlapping pulling plate 53, and an inner outer surface of the arc-shaped clipping strip 55 is provided with an indented groove three 56, and the inner surface of the indented groove three 56 An anti-slip groove 57 is fixedly connected to the outer surface of the side, and an empty groove is opened inside the overlapping pulling plate 53 and the arc-shaped clamping strip 55. A pulling strip 58 is movably overlapped on the inner surface of the empty groove, and a hook 59 is fixedly connected to the side surface of the top pulling strip 58. The indented groove three 56 on the outer surface of one side of the arc-shaped clamping strip 55 is used to clamp it to the spring surface, and the limiting grooves 54 on the two side surfaces of the overlapping pulling plate 53 are matched with the side of the arc spring overlapping strip 26 to limit the position of the overlapping pulling plate 53. The anti-slip groove 57 is used to increase the friction between the spring and the pull bar 58. The hook 59 is clamped to the spring surface to limit its position, and the pull ring 51 is pulled to pull the pulling rod 52 outward to compress the spring.

[0041] Example 3

[0042] like Figure 1-6 As shown, on the basis of embodiment 1, the present invention provides a technical solution: preferably, a fixed disc 44 is movably mounted on the left inner surface of the casing 41, an elastic strip 45 is fixedly connected to the outer surface of one side of the fixed disc 44, a lap plate 3 42 is fixedly connected to the inner side of the casing 41 and located in the middle position, a telescopic column 46 is movably sleeved on the outer surface of the lap plate 3 42, one end of the left side of the telescopic column 46 is fixedly connected to one end of the elastic strip 45, and the other end of the telescopic column 46 is fixedly connected to an impact soft plate 47, and the lap plate 3 The left outer surface of 42 is fixedly connected to a fixing strip 43 on both side edges, and one side surface of the fixing strip 43 is arranged on the inner surface of the sleeve 41. When the pull ring 51 is loosened, the compressed spring will generate a large reverse pushing force, which will push the overlapping pulling plate 53 inward quickly, and will fit and collide with the surface of the impact soft plate 47. After the collision, the impact soft plate 47 will squeeze the telescopic column 46, and the elastic strip 45 on the inner surface of the sleeve 41 will be used to elastically buffer the squeezing of the telescopic column 46.

[0043] Example 4

[0044] like Figure 1-6As shown, on the basis of embodiment 1, the present invention provides a technical solution: preferably, a semicircular groove 22 is provided on the top outer surface of the lap plate 1, an inward groove 23 is provided on the inner outer surface of the right semicircular groove 22, a snap-fit fixing block 24 is detachably installed on the inner outer surface of the inward groove 1 23, a handheld fixing block 25 is fixedly connected to the bottom outer surface of the lap plate 1, an arc-shaped spring lap strip 26 is fixedly connected to the inner side of the right lap plate 21 and at the edge of the semicircular groove 22, and the snap-fit fixing block 24 is detachably installed on the inner outer surface of the inward groove 1 23. The front of the block 31 is provided with an indented groove 24 on the top edge, and a hollow trapezoidal elastic strip 35 is fixedly connected to the inner outer surface of the indented groove 24, and a C-shaped clamping ring 36 is fixedly connected to the outer surface of one side of the hollow trapezoidal elastic strip 35. A wear-resistant soft strip 38 is fixedly connected to the inner outer surface of the C-shaped clamping ring 36, and an extrusion limit soft strip 37 is fixedly connected to the outer surface of the C-shaped clamping ring 36 at the upper and lower edge positions. Small hole grooves 32 are provided on the outer surfaces of both sides of the clamping block 31. The two side surfaces of the connecting block 31 are fixedly connected with semicircular extrusion soft strips 33 on the edge of the small hole groove 32. The semicircular extrusion soft strips 33 and the small hole groove 32 are respectively clamped on the inner surface of the sunken groove 23. The connecting block 31 is clamped to the inside of the sunken groove 23, and the small hole grooves 32 on the outer surfaces of the two sides of the connecting block 31 are matched with the connecting block on the inner surface of the sunken groove 23. When docking, the semicircular extrusion soft strips 33 are used to increase the friction between the sunken groove 23 and the sunken groove 23. When clamping, the back side of the clamping block 31 is clamped and fixed with the clamping fixing block 24, the spring is clamped to the surface of the clamping block 31, and is clamped with the C-shaped clamping ring 36 on the inner surface of the recessed groove 2 34. When overlapping, the wear-resistant soft strip 38 is used to increase the friction between the spring and the spring. When squeezing, the extrusion limiting soft strip 37 is used to protect the surface of the spring. When squeezing, the hollow trapezoidal elastic soft strip 35 is used to elastically buffer the extrusion of the C-shaped clamping ring 36.

[0045] The working principle of the spring locating pin is described in detail below.

[0046] like Figure 1-6As shown, the clamping block 31 is clamped into the inside of the sunken groove 1 23, and the small hole grooves 32 on the outer surfaces of the clamping block 31 on both sides are matched with the clamping block on the inner surface of the sunken groove 1 23. When docking, the semicircular extrusion soft strip 33 is matched to increase the friction between the inner groove 1 23. When clamping, the clamping fixing block 24 is matched to clamp and fix the back of the clamping block 31. The spring is clamped on the surface of the clamping block 31, and the C on the inner surface of the sunken groove 2 34 is matched. The C-shaped clamping ring 36 is clamped to it. When overlapping, the wear-resistant soft strip 38 is used to increase the friction between the spring and the spring. When squeezing, the extrusion limit soft strip 37 is used to protect the surface of the spring. When squeezing, the hollow trapezoidal elastic soft strip 35 is used to elastically buffer the extrusion of the C-shaped clamping ring 36. The indented groove 35 on the outer surface of one side of the arc-shaped clamping strip 55 is used to clamp to the spring surface, and the limiting grooves 54 on the surfaces of both sides of the overlapping pulling plate 53 are used to overlap the arc spring. The side of the connecting strip 26 is docked to limit the position of the overlapping pull plate 53, and the anti-slip groove 57 is used to increase the friction between the spring and the pull bar 58. The hook 59 is clamped to the surface of the spring to limit its position. The pull ring 51 is pulled to pull the connecting rod 52 outward to compress the spring. When the pull ring 51 is released, the compressed spring will generate a large reverse pushing force, which will quickly push the overlapping pull plate 53 inward and contact the surface of the impact soft plate 47. The impact is combined, and the impact soft plate 47 will squeeze the telescopic column 46 after the impact. The elastic strip 45 on the inner surface of the shell 41 is used to elastically buffer the squeezing of the telescopic column 46. The semicircular groove 22 on the outer surface of the lap plate 21 is used to overlap to the appropriate position, and the spring side clamping block 3 and the spring on the surface of the arc-shaped clamping strip 55 are clamped to the appropriate buckle at one end. The spring pull-out compressor 5 is released and the spring is automatically collapsed by the elasticity of the spring, and the spring is clamped to the position where the guide needs to be clamped.

Claims

1. A spring locating pin, comprising a spring locating pin body (1), characterized in that: The spring positioning pin body (1) includes a lap plate (2), and a lap plate (2) is fixedly connected to the outer surfaces of both sides of the lap plate (2). The two lap plates (21) are arranged with the center line of the lap plate (2) as the symmetry axis. The spring pull-out compressor (5) is movably sleeved inside the lap plate (2) on the right side, and the spring pull-out compressor (5) includes a pull ring (51). The spring side clamping block (3) is movably installed inside the lap plate (21), and the spring side clamping block (3) includes a clamping block (31). An impact buffer (4) is fixedly installed on the outer surface of the inner bottom of the lap plate (2) on the left side, and the impact buffer (4) includes a sleeve (41). A second indented groove (34) is provided on the front side of the clamping block (31) and at the top edge position, a hollow trapezoidal elastic strip (35) is fixedly connected to the inner outer surface of the second indented groove (34), a C-shaped clamping ring (36) is fixedly connected to the outer surface of one side of the hollow trapezoidal elastic strip (35), a wear-resistant strip (38) is fixedly connected to the inner outer surface of the C-shaped clamping ring (36), and an extrusion limiting strip (37) is fixedly connected to the outer surface of the C-shaped clamping ring (36) and at the upper and lower edge positions. A fixed disc (44) is movably mounted on the left inner surface of the housing (41), an elastic strip (45) is fixedly connected to the outer surface of one side of the fixed disc (44), a lap plate three (42) is fixedly connected to the inner side of the housing (41) and at a middle position, a telescopic column (46) is movably sleeved on the outer surface of the lap plate three (42), and one end of the left side of the telescopic column (46) is fixedly connected to one end of the elastic strip (45); The other end of the telescopic column (46) is fixedly connected to a soft impact plate (47), and the left outer surface of the lap plate three (42) and the edges on both sides are fixedly connected to a fixing strip (43), and one side surface of the fixing strip (43) is arranged on the inner surface of the housing (41).

2. The spring positioning pin according to claim 1, characterized in that: A semicircular groove (22) is provided on the top outer surface of the lap plate 1 (2), an inward recessed groove 1 (23) is provided on the inner outer surface of the semicircular groove (22) on the right side, a snap-fit fixing block (24) is detachably mounted on the inner outer surface of the inward recessed groove 1 (23), a hand-held fixing block (25) is fixedly connected to the bottom outer surface of the lap plate 1 (2), and an arc-shaped spring lap strip (26) is fixedly connected to the inner side of the lap plate 2 (21) on the right side and at the edge of the semicircular groove (22).

3. The spring positioning pin according to claim 1, characterized in that: A pull rod (52) is fixedly connected to the left outer surface of the pull ring (51), and the outer surface of the pull rod (52) is movably overlapped on the inner surface of the second overlap plate (21) on the right side. A lap pull plate (53) is fixedly connected to the other end of the pull rod (52), and the lap pull plate (53) is located at the inner middle position of the two overlap plates (21). Limiting grooves (54) are provided on the outer surfaces of both sides of the lap pull plate (53), and the inner surface of the limiting groove (54) is movably overlapped on the outer surface of one side of the arc spring overlap strip (26).

4. The spring positioning pin according to claim 3, characterized in that: An arc-shaped snap-fit strip (55) is fixedly connected to the top outer surface of the overlapping pull plate (53), and an inward-recessed groove three (56) is provided on the inner outer surface of the arc-shaped snap-fit strip (55). An anti-slip groove (57) is fixedly connected to the inner outer surface of the inward-recessed groove three (56). An empty groove is provided inside the overlapping pull plate (53) and the arc-shaped snap-fit strip (55), and a pull strip (58) is movably overlapped on the inner surface of the empty groove. A hook (59) is fixedly connected to the side surface of the pull strip (58) at the top.

5. The spring positioning pin according to claim 1, characterized in that: Small hole grooves (32) are provided on the outer surfaces of both sides of the clamping block (31), and semicircular extrusion soft strips (33) are fixedly connected to the two side surfaces of the clamping block (31) and at the edge positions of the small hole grooves (32), and the semicircular extrusion soft strips (33) and the small hole grooves (32) are respectively clamped to the inner side surfaces of the sunken groove 1 (23).

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