A new type of steel plate pin

Abstract

This utility model relates to the field of automotive parts technology and discloses a novel steel plate pin, including a cylindrical sleeve. A moving mechanism is provided at the lower end of the outer wall of the cylindrical sleeve for fine-tuning. A connecting plate two is slidably connected to the bottom of the cylindrical sleeve. Multiple buffer mechanisms are provided on the left and right sides of the bottom of the connecting plate two for buffering. Multiple slide rail mechanisms are provided on the front and rear sides of the top of the connecting plate two. Multiple support mechanisms are provided near the middle of the front and rear sides of the top of the connecting plate two. In this utility model, when the position of the cylindrical sleeve needs to be adjusted, the buckle is first lifted upwards. Then, the buckle will drive the limiting rod one upwards, causing the sliding ring one to move along the track, thus achieving the function of fine-tuning the position of the cylindrical sleeve according to actual usage.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a novel steel plate pin. Background Technology

[0002] Steel plates are flat steel products made by pouring and cooling molten steel and then pressing them together. They are a general term for flat steel products, and their specifications are expressed by thickness, width, and length. Based on material, they can be divided into carbon steel plates, alloy steel plates, and stainless steel plates. Based on production process, they are divided into hot-rolled steel plates and cold-rolled steel plates. Hot-rolled steel plates have lower strength but better plasticity, while cold-rolled steel plates have higher precision and better surface quality. Steel plates are widely used in construction, machinery manufacturing, automobiles, shipbuilding, and aerospace. In construction, they are used for steel structure construction and bridge building. In machinery manufacturing, they can be used to make parts and equipment shells. In the automotive industry, they are used for body manufacturing and chassis structures. Their characteristics include high strength, good ductility and toughness, and the ability to withstand large loads and deformations. Furthermore, their performance can be further improved through heat treatment and surface coating processes, such as rust prevention and wear resistance, to meet the needs of different applications.

[0003] A leaf pin is a cylindrical part used for connecting, positioning, or transmitting loads. Commonly found in mechanical structures, vehicle suspension systems, and construction machinery, it is typically a solid or hollow cylinder, with one end possibly featuring a chamfer, thread, and cotter pin hole for easy installation and fixation. However, without a stable connection method, the leaf pin can break, affecting its performance. With technological advancements, leaf pin connection mechanisms mainly consist of the leaf pin body, the connected parts, and auxiliary fixing components. The core principle is that the cylindrical structure of the leaf pin passes through the pin hole of the connected part, forming a hinge point to achieve relative rotation or fixed connection between components. In vehicle leaf springs, the leaf pin passes through the center hole of each leaf spring, and both ends are fixed with cotter pins and bolts, allowing the leaf spring to swing around the pin axis when under force, simultaneously transmitting vertical loads and some lateral forces. However, this connection mechanism cannot make fine adjustments in the horizontal direction, resulting in insufficient fixation and potential detachment, thus affecting its performance. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a new type of steel plate pin, which aims to improve the problem that the existing connecting mechanism cannot make fine adjustments in the horizontal direction, resulting in insufficient fixation, subsequent detachment, and affecting the use effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel steel plate pin, comprising a cylindrical sleeve, wherein a moving mechanism is provided at the lower end of the outer wall of the cylindrical sleeve for fine adjustment, a connecting plate two is slidably connected to the bottom of the cylindrical sleeve, and multiple buffering mechanisms are provided on the left and right sides of the bottom of the connecting plate two for buffering, multiple slide rail mechanisms are provided on the front and rear sides of the top of the connecting plate two, multiple support mechanisms are provided on the front and rear sides of the top of the connecting plate two near the middle, multiple threaded mechanisms are provided on the front and rear sides of the top of the cylindrical sleeve, a connecting mechanism is provided on the top of the cylindrical sleeve near the middle, and a fixing mechanism is provided on the inner wall of the cylindrical sleeve;

[0006] The moving mechanism includes a sliding ring, the inner wall of which is fixedly connected to the lower end of the outer wall of the cylindrical sleeve. A fixed sleeve is fixedly connected to the front side of the sliding ring, and a buckle is slidably connected to the inner wall of the fixed sleeve. A fixed plate is fixedly connected to the front side of the fixed sleeve, and an elastic component is provided on the top of the fixed plate.

[0007] As a further description of the above technical solution: the buffer mechanism includes a fixed ring, the top of which is slidably connected to the bottom of the connecting plate II, and a plurality of limiting rods II are fixedly connected to the bottom of the fixed ring. A retaining ring is fixedly connected to the lower middle end of the outer wall of the limiting rod II, and a spring II is fixedly connected to the top of the retaining ring. The top of the spring II is fixedly connected to the bottom of the fixed ring, and a sliding component is provided at the bottom of the plurality of limiting rods II.

[0008] As a further description of the above technical solution: the elastic component includes a limiting rod, the top of the limiting rod is fixedly connected to the top of the buckle, the bottom of the limiting rod is slidably connected to the top of the fixing plate, and a spring is slidably connected to the outer wall of the limiting rod, the bottom of the spring being fixedly connected to the top of the fixing plate.

[0009] As a further description of the above technical solution: the sliding assembly includes a second sliding ring, the top of the second sliding ring is fixedly connected to the bottom of the second spring, the bottom of the second sliding ring is slidably connected to the top of the retaining ring, and the inner wall of the second sliding ring is provided with a plurality of circular holes, the inner wall of the circular holes being slidably connected to the outer wall of the limiting rod.

[0010] As a further description of the above technical solution: the slide rail mechanism includes multiple tracks, the bottom of each track is fixedly connected to the front and rear sides of the top of the connecting plate two, and the inner wall of each track is provided with an elongated groove, the inner wall of the elongated groove being slidably connected to the outer wall of the sliding ring one.

[0011] As a further description of the above technical solution: the support mechanism includes a support column, the bottom of which is fixedly connected to the top of the connecting plate two, and a support ring is fixedly connected to the upper middle part of the outer wall of the support column.

[0012] As a further description of the above technical solution: the threaded mechanism includes a threaded cap, the inner wall of the threaded cap is fixedly connected to the top of the outer wall of the support column, and the outer wall of the threaded cap is threaded with an external thread.

[0013] As a further description of the above technical solution: the connecting mechanism includes a connecting plate 1, the bottom of the connecting plate 1 is fixedly connected to the top of the cylindrical sleeve, and the top of the connecting plate 1 is provided with multiple circular holes 2.

[0014] As a further description of the above technical solution: the fixing mechanism includes a bolt, the outer wall of the bolt is slidably connected to the inner wall of the cylindrical sleeve, and a nut is threadedly connected to the lower end of the outer wall of the bolt.

[0015] As a further description of the above technical solution: a plurality of baffles are fixedly connected to the top of the second connecting plate near the middle, and the front and rear sides of the baffles are fixedly connected to the inner side of the track, and the baffles are used for blocking.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, firstly, the nut is unscrewed, at which point the nut will separate from the bolt. Then, the bolt is removed. When it is necessary to adjust the position of the cylindrical sleeve, firstly, the buckle is lifted upwards. Then, the buckle will drive the limiting rod to move upwards. At this time, the limiting rod will drive the spring to stretch, preventing the buckle from leaving the fixed sleeve. Then, the cylindrical sleeve is moved left and right, so that the sliding ring moves along the track, thus realizing the function of fine-tuning the position of the cylindrical sleeve according to the actual use.

[0018] 2. In this utility model, when the nut is turned upward along the bolt, the nut will squeeze the sliding ring two. At this time, the sliding ring two will move upward along the outer wall of the limiting rod two. At this time, the limiting rod two will squeeze the spring two, achieving the buffering effect, thus realizing the buffering of the steel plate and preventing it from being squeezed excessively. Attached Figure Description

[0019] Figure 1 This is a front perspective view of a novel steel plate pin proposed in this utility model;

[0020] Figure 2 This is a partial structural breakdown diagram of a bolt for a novel steel plate pin proposed in this utility model;

[0021] Figure 3This is a partial structural breakdown diagram of the fixing ring of a novel steel plate pin proposed in this utility model;

[0022] Figure 4 This is a partial structural exploded view of a connecting plate for a novel steel plate pin proposed in this utility model;

[0023] Figure 5 This is a partial structural breakdown diagram of a novel steel plate pin buckle proposed in this utility model.

[0024] Legend:

[0025] 1. Cylindrical sleeve; 2. Moving mechanism; 201. Sliding ring one; 202. Fixed sleeve; 203. Buckle; 204. Fixed plate; 205. Elastic component; 2051. Spring one; 2052. Limiting rod one; 3. Buffer mechanism; 301. Fixed ring; 302. Limiting rod two; 303. Retaining ring; 304. Spring two; 305. Sliding component; 3051. Sliding ring two; 3052. Circular hole one; 4. Slide rail mechanism; 401. Rail; 402. Long groove; 5. Support mechanism; 501. Support column; 502. Support ring; 6. Thread mechanism; 601. Threaded cap; 602. External thread; 7. Connecting mechanism; 701. Connecting plate one; 702. Circular hole two; 8. Fixing mechanism; 801. Bolt; 802. Nut; 9. Baffle; 10. Connecting plate two. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5The present invention provides an embodiment of a novel steel plate pin, comprising a cylindrical sleeve 1, a moving mechanism 2 provided at the lower end of the outer wall of the cylindrical sleeve 1 for fine adjustment, a connecting plate 2 10 slidably connected to the bottom of the cylindrical sleeve 1 for more stable connection, multiple buffering mechanisms 3 provided on the left and right sides of the bottom of the connecting plate 2 10 for buffering, multiple slide rail mechanisms 4 provided on the front and rear sides of the top of the connecting plate 2 10, multiple support mechanisms 5 provided on the front and rear sides of the top of the connecting plate 2 10 near the middle, multiple threaded mechanisms 6 provided on the front and rear sides of the top of the cylindrical sleeve 1, a connecting mechanism 7 provided on the top of the cylindrical sleeve 1 near the middle, and a fixing mechanism 8 provided on the inner wall of the cylindrical sleeve 1 for fixing.

[0028] The moving mechanism 2 includes a sliding ring 201. The inner wall of the sliding ring 201 is fixedly connected to the lower end of the outer wall of the cylindrical sleeve 1. A fixed sleeve 202 is fixedly connected to the front side of the sliding ring 201. A buckle 203 is slidably connected to the inner wall of the fixed sleeve 202. A fixed plate 204 is fixedly connected to the front side of the fixed sleeve 202, making the overall fixation more stable. An elastic component 205 is provided on the top of the fixed plate 204. The elastic component 205 includes a limiting rod 2052 for convenient limiting. The top of the limiting rod 2052 is fixedly connected to the top of the buckle 203. The bottom of the limiting rod 2052 is slidably connected to the top of the fixed plate 204. A spring 2051 is slidably connected to the outer wall of the limiting rod 2052. The bottom of the spring 2051 is fixedly connected to the top of the fixed plate 204, providing elastic support for the whole.

[0029] Specifically, the device includes a cylindrical sleeve 1, with a moving mechanism 2 installed at the lower end of its outer wall. The main function of this moving mechanism 2 is to perform fine-tuning operations to ensure the accuracy and stability of the entire device. The bottom of the cylindrical sleeve 1 is connected to a connecting plate 2 10 via a sliding connection, allowing the connecting plate 2 10 to move flexibly at the bottom of the cylindrical sleeve 1. Multiple buffer mechanisms 3 are evenly distributed on the left and right sides of the bottom of the connecting plate 2 10. The main function of these buffer mechanisms 3 is to provide effective buffering during device operation to reduce impact. To prevent impact and vibration, multiple slide rail mechanisms 4 are provided on the front and rear sides of the top of the connecting plate 2 10. These slide rail mechanisms 4 ensure the stability and smoothness of the connecting plate 2 10 during movement. Multiple support mechanisms 5 are also provided near the center of the front and rear sides of the top of the connecting plate 2 10, providing support for the entire device. Multiple threaded mechanisms 6 are installed on the front and rear sides of the top of the cylindrical sleeve 1. These threaded mechanisms 6 are used for adjusting and fixing related components. A connecting mechanism 7 is provided near the center of the top of the cylindrical sleeve 1. For connection with other components, the inner wall of the cylindrical sleeve 1 is also provided with a fixing mechanism 8 to ensure the stability of the internal components. The moving mechanism 2 includes a sliding ring 201, the inner wall of which is fixedly connected to the lower end of the outer wall of the cylindrical sleeve 1. A fixing sleeve 202 is fixedly connected to the front side of the sliding ring 201. The inner wall of the fixing sleeve 202 is slidably connected to the buckle 203. A fixing plate 204 is fixedly connected to the front side of the fixing sleeve 202. An elastic component is provided on the top of the fixing plate 204. 205. The specific structure of the elastic component 205 includes a limiting rod 2052. The top of the limiting rod 2052 is fixedly connected to the top of the buckle 203, while the bottom of the limiting rod 2052 is slidably connected to the top of the fixing plate 204. The outer wall of the limiting rod 2052 is slidably connected to the spring 2051. The bottom of the spring 2051 is tightly connected to the top of the fixing plate 204, thereby forming a complete elastic component 205, ensuring the stability and reliability of the moving mechanism 2 during the fine adjustment process.

[0030] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3The buffer mechanism 3 includes a fixed ring 301, the top of which is slidably connected to the bottom of the connecting plate 10. Multiple limiting rods 302 are fixedly connected to the bottom of the fixed ring 301, serving as limiting elements. A retaining ring 303 is fixedly connected to the lower middle end of the outer wall of the limiting rod 302. A spring 304 is fixedly connected to the top of the retaining ring 303, providing elastic support for the whole structure. The top of the spring 304 is fixedly connected to the bottom of the fixed ring 301. A sliding assembly 305 is provided at the bottom of each of the multiple limiting rods 302. The sliding assembly 305 includes a sliding ring 3051, the top of which is fixedly connected to the bottom of the spring 304, and the bottom of which is slidably connected to the top of the retaining ring 303. Multiple circular holes 3052 are provided on the inner wall of the sliding ring 3051, and the inner wall of the circular holes 3052 is slidably connected to the outer wall of the limiting rod 302, making the overall connection more stable.

[0031] Specifically, the buffer mechanism 3 includes a fixed ring 301, the top of which is slidably connected to the bottom of the connecting plate 10 to ensure relative movement between them. Multiple limiting rods 302 are fixedly connected to the bottom of the fixed ring 301. These limiting rods 302 provide important support and limiting functions. A retaining ring 303 is fixedly connected to the lower part of the outer wall of each limiting rod 302. The main function of the retaining ring 303 is to provide support and buffering. A spring 304 is fixedly connected to the top of the retaining ring 303, and the top of the spring 304 is fixedly connected to the bottom of the fixed ring 301, forming an elastic buffering mechanism. The bottom of the multiple limiting rods 302... Each part is equipped with a sliding component 305, which is mainly composed of a second sliding ring 3051. The top of the second sliding ring 3051 is fixedly connected to the bottom of the second spring 304 to ensure that the spring force can be effectively transmitted. The bottom of the second sliding ring 3051 is connected to the top of the retaining ring 303 by a sliding connection, so that the second sliding ring 3051 can slide freely on the retaining ring 303. The inner wall of the second sliding ring 3051 is provided with multiple circular holes 3052. The inner wall of these circular holes 3052 is connected to the outer wall of the second limiting rod 302 by a sliding connection, ensuring that the second limiting rod 302 can move flexibly in the holes, thereby realizing the smooth operation of the entire buffer mechanism 3.

[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4The slide rail mechanism 4 includes multiple tracks 401, the bottom of which is fixedly connected to the top front and rear sides of the connecting plate 2 10. The inner wall of the track 401 is provided with a long groove 402, and the inner wall of the long groove 402 is slidably connected to the outer wall of the sliding ring 1 201. The support mechanism 5 includes a support column 501, the bottom of which is fixedly connected to the top of the connecting plate 2 10. The upper middle part of the outer wall of the support column 501 is fixedly connected to the support ring 502 for easy support. The thread mechanism 6 includes a thread cap 601, the inner wall of which is fixedly connected to the top of the outer wall of the support column 501. The outer wall of the thread cap 601 is threaded with an external thread 602.

[0033] Specifically, the slide rail mechanism 4 consists of multiple tracks 401. The bottom of each track 401 is fixedly connected to the front and rear sides of the top of the connecting plate 2 10 to ensure its stability. Each track 401 has an elongated groove 402 on its inner wall. The inner wall of the groove 402 is slidably connected to the outer wall of the sliding ring 201, allowing the sliding ring 201 to move smoothly within the track 401. The support mechanism 5 mainly consists of a support column 501. The bottom of the support column 501 is fixedly connected to the top of the connecting plate 2 10 to provide stable support. A support ring 502 is fixedly connected to the upper part of the outer wall of the support column 501 to further enhance the stability of the structure. The threaded mechanism 6 includes a threaded cap 601. The inner wall of the threaded cap 601 is fixedly connected to the top of the outer wall of the support column 501 to ensure its positional accuracy. The outer wall of the threaded cap 601 is connected to an external thread 602 by a threaded connection to facilitate adjustment and fixing operations.

[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The connecting mechanism 7 includes a connecting plate 701, the bottom of which is fixedly connected to the top of the cylindrical sleeve 1. The top of the connecting plate 701 is provided with multiple circular holes 702. The fixing mechanism 8 includes a bolt 801, the outer wall of which is slidably connected to the inner wall of the cylindrical sleeve 1. The lower end of the outer wall of the bolt 801 is threaded with a nut 802. The top of the connecting plate 10 is fixedly connected to multiple baffles 9 near the middle, which can block the view. The front and rear sides of the baffles 9 are fixedly connected to the inner side of the track 401. The baffles 9 are used for blocking.

[0035] Specifically, the connecting mechanism 7 includes a connecting plate 701. The bottom of the connecting plate 701 is reliably fixed to the top of the cylindrical sleeve 1 to ensure the stability of the connection between the two. Multiple circular holes 702 are evenly provided in the top area of ​​the connecting plate 701. The fixing mechanism 8 is mainly composed of bolts 801. The outer wall of the bolt 801 is slidably connected to the inner wall of the cylindrical sleeve 1, allowing the bolt 801 to move flexibly within the sleeve. The lower end of the outer wall of the bolt 801 is connected to the nut 802 through a threaded structure, which facilitates the adjustment and fixing of the position of the bolt 801. Multiple baffles 9 are fixedly connected near the middle of the top of the connecting plate 10. These baffles 9 are set to enhance the stability and functionality of the overall structure. The front and rear sides of the baffles 9 are fixedly connected to the inner side of the track 401 to ensure that the baffles 9 can function stably within the track 401. The main purpose of the baffles 9 is to block and prevent other parts from shifting or colliding during movement, thereby ensuring the normal operation and safety performance of the entire device.

[0036] Working principle: First, unscrew nut 802. At this time, nut 802 will be separated from bolt 801. Then remove bolt 801. When it is necessary to adjust the position of cylindrical sleeve 1, first lift buckle 203 upward. Then buckle 203 will drive limit rod 2052 to move upward. At this time, limit rod 2052 will drive spring 2051 to stretch, so that buckle 203 is separated from fixed sleeve 202. Then move cylindrical sleeve 1 left and right, so that sliding ring 201 moves along track 401. When it moves to the appropriate position, release buckle 203, so that buckle 203 is locked onto connecting plate 10 again. Then place the steel plate to be connected at the bottom of connecting plate 10, and then reinstall bolt 801. At the same time, place buffer mechanism 3 at the bottom of connecting plate 10, so that the position of cylindrical sleeve 1 can be finely adjusted according to the actual use.

[0037] When nut 802 is turned upward along bolt 801, nut 802 will squeeze sliding ring 3051. At this time, sliding ring 3051 will move upward along the outer wall of limit rod 302. Limit rod 302 will squeeze spring 304, causing it to deform and achieve a buffering effect. At the same time, fixed ring 301 will squeeze steel plate upward, thus achieving the function of buffering steel plate and preventing excessive compression.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of steel plate pin comprising a cylindrical sleeve (1), characterized in that: The lower end of the outer wall of the cylindrical sleeve (1) is provided with a moving mechanism (2), which is used for fine adjustment. The bottom of the cylindrical sleeve (1) is slidably connected to a connecting plate two (10). Multiple buffer mechanisms (3) are provided on the left and right sides of the bottom of the connecting plate two (10), which are used for buffering. Multiple slide rail mechanisms (4) are provided on the front and back sides of the top of the connecting plate two (10). Multiple support mechanisms (5) are provided on the front and back sides of the top of the connecting plate two (10) near the middle. Multiple threaded mechanisms (6) are provided on the front and back sides of the top of the cylindrical sleeve (1). A connecting mechanism (7) is provided on the top of the cylindrical sleeve (1) near the middle. A fixing mechanism (8) is provided on the inner wall of the cylindrical sleeve (1). The moving mechanism (2) includes a sliding ring (201), the inner wall of which is fixedly connected to the lower end of the outer wall of the cylindrical sleeve (1), a fixed sleeve (202) is fixedly connected to the front side of the sliding ring (201), a buckle (203) is slidably connected to the inner wall of the fixed sleeve (202), a fixed plate (204) is fixedly connected to the front side of the fixed sleeve (202), and an elastic component (205) is provided on the top of the fixed plate (204).

2. The novel steel plate pin according to claim 1, characterized in that: The buffer mechanism (3) includes a fixed ring (301), the top of which is slidably connected to the bottom of the connecting plate (10). Multiple limiting rods (302) are fixedly connected to the bottom of the fixed ring (301). A retaining ring (303) is fixedly connected to the lower end of the outer wall of the limiting rod (302). A spring (304) is fixedly connected to the top of the retaining ring (303). The top of the spring (304) is fixedly connected to the bottom of the fixed ring (301). A sliding component (305) is provided at the bottom of each of the multiple limiting rods (302).

3. The novel steel plate pin according to claim 1, characterized in that: The elastic component (205) includes a limiting rod (2052), the top of which is fixedly connected to the top of the buckle (203), the bottom of which is slidably connected to the top of the fixing plate (204), and a spring (2051) slidably connected to the outer wall of the limiting rod (2052), the bottom of which is fixedly connected to the top of the fixing plate (204).

4. A novel steel plate pin according to claim 2, characterized in that: The sliding assembly (305) includes a second sliding ring (3051), the top of which is fixedly connected to the bottom of a second spring (304), the bottom of which is slidably connected to the top of a retaining ring (303), and the inner wall of the second sliding ring (3051) is provided with a plurality of circular holes (3052), the inner wall of which is slidably connected to the outer wall of a limiting rod (302).

5. A novel steel plate pin according to claim 1, characterized in that: The slide rail mechanism (4) includes multiple tracks (401), the bottom of each track (401) is fixedly connected to the front and rear sides of the top of the connecting plate (10), and the inner wall of the track (401) is provided with a long groove (402), and the inner wall of the long groove (402) is slidably connected to the outer wall of the sliding ring (201).

6. A novel steel plate pin according to claim 1, characterized in that: The support mechanism (5) includes a support column (501), the bottom of which is fixedly connected to the top of the connecting plate (10), and a support ring (502) is fixedly connected to the upper part of the outer wall of the support column (501).

7. A novel steel plate pin according to claim 1, characterized in that: The threaded mechanism (6) includes a threaded cap (601), the inner wall of which is fixedly connected to the top of the outer wall of the support column (501), and the outer wall of the threaded cap (601) is threaded with an external thread (602).

8. A novel steel plate pin according to claim 1, characterized in that: The connecting mechanism (7) includes a connecting plate (701), the bottom of which is fixedly connected to the top of the cylindrical sleeve (1), and the top of the connecting plate (701) is provided with a plurality of circular holes (702).

9. A novel steel plate pin according to claim 1, characterized in that: The fixing mechanism (8) includes a bolt (801), the outer wall of the bolt (801) is slidably connected to the inner wall of the cylindrical sleeve (1), and a nut (802) is threadedly connected to the lower end of the outer wall of the bolt (801).

10. A novel steel plate pin according to claim 1, characterized in that: Multiple baffles (9) are fixedly connected to the top of the connecting plate 2 (10) near the middle. The front and rear sides of the baffles (9) are fixedly connected to the inner side of the track (401). The baffles (9) are used for blocking.

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