Tramcar covering part walking board guardrail structure

Abstract

The utility model relates to the technical field of mining equipment, in particular to a tramcar covering part walking board guardrail structure which comprises a handrail rod, the two ends of the handrail rod are connected with a connecting sleeve in a sleeved mode, the handrail rod penetrates through the connecting sleeve, one end of the connecting sleeve is connected with a bent plate in a sleeved mode, and the bent plate is connected with the handrail rod in a sleeved mode. The other end of the bending plate is connected to the end of the handrail in a sleeving mode, the top end of the connecting sleeve is fixedly connected with the handrail in a welded mode, the bottom end of the connecting sleeve is fixedly connected with one end of the bending plate in a welded mode, and the other end of the bending plate is fixedly connected with the bottom end of the connecting sleeve in a welded mode. And meanwhile, a bending plate is additionally arranged, and the number of welding points of the handrail rod is further increased to three through the bending plate, so that stress borne by the handrail rod is dispersed, the stress limit of a single connecting point is enhanced, the connecting strength of the welding points is improved, and the handrail rod is not prone to being broken.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to a walkway guardrail structure for a mining car cover. Background Technology

[0002] Mining trucks and other engineering machinery are used in rugged mountainous terrain. Since mining trucks are much larger than regular cars, drivers need to climb into the cab. To facilitate this, walkways and guardrails are designed on the truck body for drivers to hold onto and stabilize themselves. Existing walkway guardrails are similar to ordinary guardrails, fixed to the truck body by welding. However, due to the rugged terrain and frequent, severe vibrations generated by the mining trucks, the welded connection between the guardrail and the walkway experiences significant stress and is prone to breakage, affecting user safety. Therefore, a more robust connection structure for the mining truck walkway guardrail is needed to ensure a stable connection. Utility Model Content

[0003] The purpose of this utility model is to provide a mine car cover walkway guardrail structure to solve the problems mentioned in the background art.

[0004] A mine car cover walkway guardrail structure includes a handrail with connecting sleeves sleeved at both ends. The handrail passes through the connecting sleeves, and a bent plate is sleeved at one end of each connecting sleeve. The other end of the bent plate is sleeved at the bottom end of the handrail. The top end of the connecting sleeve is fixedly connected to the handrail by welding, and the bottom end of the connecting sleeve is fixedly connected to the bent plate sleeved on it by welding. The other end of the bent plate is fixedly connected to the bottom end of the connecting sleeve by welding.

[0005] Preferably, the top surface of the connecting sleeve is an inclined surface, and the bottom surface is a flat surface.

[0006] Furthermore, the bending plate is Π-shaped, and the bending plate includes two side plates and a middle plate connected to the two side plates. The two side plates of the bending plate are provided with fitting holes, and the middle plate of the bending plate is provided with several fixing holes.

[0007] Furthermore, the middle plates of the two bent plates are perpendicular to each other, and the side plates of the two bent plates are parallel to each other.

[0008] Preferably, a connecting rod is fixedly connected to the handrail, and the two ends of the connecting rod are fixedly connected to the two ends of the handrail.

[0009] Furthermore, it also includes a reinforcing column, which is fixedly connected to the connecting rod and the handrail. A connecting plate is fixedly connected to the bottom end of the reinforcing column. Several reinforcing ribs are provided between the connecting plate and the reinforcing column. A locking hole is provided on the connecting plate. The connecting plate is fixedly connected to the walkway by bolts.

[0010] Furthermore, several fixing plates are fixedly connected to the side of the reinforcing column by bolts, and the handrail and connecting rod are both clamped and fixed to the reinforcing column by the fixing plates.

[0011] Furthermore, a rearview mirror rod is also fixedly connected to the reinforcing column via a fixing plate.

[0012] Compared with the prior art, the advantages of this utility model are as follows: Based on the original guardrail structure, this utility model adds connecting sleeves at the connection points of both ends of the handrail. The use of connecting sleeves increases the damage resistance of the thin handrail. The top surface of the connecting sleeve is beveled, and the top surface of the connecting sleeve is welded to the handrail. The beveled structure effectively disperses the stress generated by welding, enhances the connection strength between the connecting sleeve and the handrail, and prevents breakage at the weld point. The ends of the handrail are fixedly welded to both ends of the connecting sleeve. The very end of the pole is also fixedly connected to the bending plate by welding, with a total of three welding points. This disperses the welding points, thereby enhancing the connection strength of each individual connection point. The connecting sleeve is placed over the handrail to enhance its bending resistance and aid stability. The handrail is connected to the walkway through the bending plate, which is then fixed to the walkway with bolts. Multiple bolts can be used simultaneously to ensure connection strength. The bending plates at both ends of the two handrails are set perpendicularly to ensure the perpendicularity of the two parallel ends of the handrail.

[0013] A reinforcing column is also fixedly connected to the walkway. The reinforcing column is firmly fixed to the walkway with bolts. The bottom end of the reinforcing column is equipped with multiple reinforcing ribs to ensure that the reinforcing column can be stably connected to the walkway without causing large swaying. The handrail is fixedly connected to the reinforcing column to prevent the handrail from swaying when it is far from the connection point, and to prevent the swaying from affecting the connection strength of the connection point. The handrail is also equipped with a connecting rod, which is also fixedly connected to the reinforcing column. The stability of the handrail is further increased by fixing it in multiple places, preventing the handrail from swaying due to vibration, preventing the welding point from cracking due to swaying, and ensuring the stability and safety of the handrail. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of one embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the bending plate in one embodiment of the present utility model.

[0016] In the diagram: 1. Handrail; 2. Connecting rod; 3. Connecting sleeve; 4. Bending plate; 41. Middle plate; 42. Side plate; 5. Reinforcing column; 51. Connecting plate; 52. Reinforcing rib; 53. Fixing plate; 54. Rearview mirror rod. Detailed Implementation

[0017] The following will describe specific embodiments and appendices. Figure 1 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0018] A mine car cover walkway guardrail structure includes a handrail 1, which is Π-shaped. A connecting sleeve 3 is fitted onto both ends of the handrail 1, with the ends of the handrail 1 completely passing through the connecting sleeve 3. The connecting sleeve 3 is then fixedly connected to the handrail 1 by welding. The top and bottom ends of the connecting sleeve 3 are connected to the handrail 1 by welding. The addition of the connecting sleeve 3 enhances the deformation resistance of the handrail 1. The top surface of the connecting sleeve 3 is inclined, and the bottom surface is flat. The inclined top surface disperses the stress concentration generated by welding, reducing the possibility of breakage at the welded connection and strengthening the connection between the connecting sleeve 3 and the handrail 1.

[0019] A bent plate 4 is fitted onto the bottom end of the connecting sleeve 3. The bent plate 4 is Π-shaped and includes two side plates 42 and a middle plate 41 connected to the two side plates 42. The middle plate 41 is perpendicular to the side plates 42. The two side plates 42 of the bent plate 4 have fitting holes of different sizes. The bent plate 4 can be fitted onto the handrail 1 through the fitting holes. After fitting, the lower side plate 42 is fitted onto the bottom end of the handrail 1, and the fitting hole on the lower side plate 42 has a smaller diameter. The upper side plate 42 is fitted onto the lower end of the connecting sleeve 3, and the fitting hole on the upper side plate 42 has a larger diameter. Based on this, the lower side plate 42 needs to be welded to the handrail 1, and the upper side plate 42 needs to be welded to the connecting sleeve 3 to further increase the connection stability. Multiple welding fixation points are used to distribute the connection stress points, thus increasing the deformation resistance of individual connection points and preventing cracking. Six fixing holes are opened on the middle plate 41 for fixing bolts to pass through. Fixing bolts can fix the bending plate 4 to the mine car walkway for easy disassembly during maintenance. At the same time, the bolt connection can select the number of bolts, and the connection strength is high and not easy to be damaged.

[0020] The two bent plates 4 are fitted onto the handrail 1 in the same posture. Both are fitted onto the handrail 1 with the middle plate 41 vertical and the two side plates 42 horizontal. However, the two middle plates 41 of the two bent plates 4 are arranged perpendicular to each other. The perpendicular arrangement of the two bent plates 4 can ensure the verticality of the handrail 1 fixed by the two bent plates 4 together, prevent it from being out of alignment, and affect subsequent installation and aesthetics.

[0021] During the operation of the mine car, vibrations cause the top of the handrail 1 to swing relative to the connection point (bottom). This swinging severely affects the connection strength of the weld, and over time, it can lead to weld breakage. Therefore, a reinforcing column 5 is fixedly installed on the walkway. The reinforcing column 5 is a square tube structure, and a connecting plate 51 is fixedly connected to the bottom of the reinforcing column. The connecting plate 51 is a steel plate structure, and reinforcing ribs 52 are provided between the connecting plate 51 and the four sides of the reinforcing column 5 to enhance the connection strength between the connecting plate 51 and the reinforcing column 5. A lock is provided on the connecting plate 51. The connecting plate 51 can be fixed to the walkway by bolts through the fixed hole, so that the reinforcing column 5 is fixed to the walkway in the vertical direction. The fixing plate 53 is fixed to the side of the reinforcing column 5 by bolts. The fixing plate 53 is the prior art. The four corners of the fixing plate 53 are fixed to the reinforcing column 5 by screws. The middle of the fixing plate 53 is provided with an arc-shaped bulge, which can fix the handrail 1 clamp in the bulge. Thus, the upper end of the handrail 1 can be fixed to the reinforcing column 5 by using the fixing plate 53, which can prevent the swaying of the handrail 1 from affecting the connection strength of its welding point.

[0022] A connecting rod 2 is fixedly connected to the handrail 1. The two ends of the connecting rod 2 are fixedly connected to the two end rods of the Ώ-shaped connecting rod 2. The connecting rod 2 is also fixedly connected to the reinforcing column 5 using a fixing plate 53, which further increases the connection points of the handrail 1. Increasing the connection points can disperse the force on the handrail 1, enhance the force limit of a single connection point of the handrail 1, and thus enhance the stable connection of the handrail 1 and prevent its welding points from breaking.

[0023] A rearview mirror rod 54 is also fixedly connected to the upper part of the reinforcing column 5 by a fixing piece 53. The other end of the rearview mirror rod 54 is used to fix the mine car rearview mirror. The handrail 1 is set on the side of the mine car to serve as a handrail. Only by setting the rearview mirror on the side can the driver obtain a better rear view when observing the rearview mirror.

[0024] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0025] In this utility model, "upper", "lower", "left", "right", "front" and "back" are relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.

[0026] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A walkway guardrail structure for a mine car cover, characterized in that, The device includes a handrail with connecting sleeves fitted at both ends. The handrail passes through the connecting sleeves. A bent plate is fitted at one end of the connecting sleeve, and the other end of the bent plate is fitted at the bottom end of the handrail. The top end of the connecting sleeve is fixedly connected to the handrail by welding, and the bottom end of the connecting sleeve is fixedly connected to the bent plate fitted on the handrail by welding. The other end of the bent plate is fixedly connected to the bottom end of the connecting sleeve by welding.

2. The mine car cover walkway guardrail structure according to claim 1, characterized in that, The top surface of the connecting sleeve is inclined, and the bottom surface is flat.

3. The mine car cover walkway guardrail structure according to claim 2, characterized in that, The bending plate is Π-shaped, and includes two side plates and a middle plate connected to the two side plates. The two side plates of the bending plate are provided with fitting holes, and the middle plate of the bending plate is provided with several fixing holes.

4. The mine car cover walkway guardrail structure according to claim 3, characterized in that, The middle plates of the two bent plates are perpendicular to each other, and the side plates of the two bent plates are parallel to each other.

5. The mine car cover walkway guardrail structure according to claim 1, characterized in that, A connecting rod is fixedly connected to the handrail, and the two ends of the connecting rod are fixedly connected to the two ends of the handrail.

6. The mine car cover walkway guardrail structure according to claim 5, characterized in that, It also includes a reinforcing column, which is fixedly connected to the connecting rod and the handrail. A connecting plate is fixedly connected to the bottom end of the reinforcing column. Several reinforcing ribs are provided between the connecting plate and the reinforcing column. A locking hole is provided on the connecting plate. The connecting plate is fixedly connected to the walkway by bolts.

7. The mine car cover walkway guardrail structure according to claim 6, characterized in that, The side of the reinforcing column is fixedly connected with several fixing plates by bolts, and the handrail and connecting rod are both clamped and fixed to the reinforcing column by the fixing plates.

8. The mine car cover walkway guardrail structure according to claim 7, characterized in that, A rearview mirror rod is also fixedly connected to the reinforcing column via a fixing plate.

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