Safety fixing device for mounting crawling ladder on expressway sound barrier

Abstract

The utility model discloses an expressway sound barrier installation ladder stand safety fixing device which comprises a ladder stand body, guide grooves are symmetrically formed in the two sides of the back face of the ladder stand body, installation connectors are installed in the guide grooves and can be adjusted up and down in the guide grooves, the rear ends of the two installation connectors are rotationally connected with hooks, and the hooks are connected with the ladder stand body. The hook is of a U-shaped structure, a hanging bracket is installed on the top of the hook, and the hanging bracket is detachably connected with the hook. The installation connectors are connected to the two sides of the back face of the crawling ladder body in a sliding mode and connected with the hooks, the hooks are rotationally connected with the installation connectors, the inclination angle of the crawling ladder body can be conveniently adjusted, meanwhile, the installation connectors can drive the hooks to be adjusted vertically, the height of the hooks can be conveniently adjusted according to the height of a sound barrier, and the hooks of the crawling ladder body can be flexibly adjusted and used; the hook can be conveniently hung on the top of the sound barrier support, and enough stability of the ladder stand body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to a safety fixing device for installing a ladder in a highway sound barrier. Background Art

[0002] When installing highway sound barriers, it is often necessary to use ladders to climb up to facilitate the installation and fixation of high-place sound insulation panels. In order to ensure that the ladder is sufficiently stable during the climbing process, auxiliary fixing structures are often used to fix the ladder.

[0003] For example, patent number CN201821829086.9 discloses an assembled ladder fixing device, which includes a rotating base and a ladder. The rotating base is fixedly installed on the same side of the top and bottom of the ladder, a fixed support is fixedly installed on the upper part of the ladder, and an adjustable support is fixedly installed on the lower part of the ladder. The rotating base includes a universal splint, a base splint, bolts, a base base, and an anti-slip pad. The universal splint is fixedly connected to the base splint by bolts, the base splint is rotatably connected to the base base by bolts, and the anti-slip pad is bonded to the base base. This ladder fixing device is easy to operate, low in cost, and highly applicable, and it greatly facilitates assembled hoisting installation in complex environments.

[0004] The above patent provides a ladder fixing device. Although this ladder fixing device can stably fix the ladder in a specified position, it is not convenient to disassemble and assemble. The ladder needs to be moved continuously when installing the highway sound barrier. Therefore, the existing ladder fixing device is not suitable for ladders for installing sound barriers. Utility Model Content

[0005] The purpose of the utility model is to provide a safety fixing device for ladders installed on highway sound barriers, aiming to improve the problem that the existing ladder fixing device can fix the ladder but is inconvenient to disassemble and assemble, and is not suitable for ladders for installing sound barriers.

[0006] The utility model is achieved in this way:

[0007] A safety fixing device for installing a ladder for a highway sound barrier includes a ladder body, guide grooves are symmetrically provided on both sides of the back of the ladder body, mounting joints are installed inside the guide grooves, the mounting joints can be adjusted up and down inside the guide grooves, the rear ends of the two mounting joints are rotatably connected to hooks, the hooks are U-shaped, and a hanger is installed on the top of the hooks, and the hanger and the hooks are detachably connected.

[0008] Preferably, a plurality of pedals are provided on the inner side of the ladder body from top to bottom, and the top end of the guide groove is open but the bottom end is not open, so as to be used for installing and disassembling the joint from the top end of the guide groove.

[0009] Preferably, a clamping rod is provided on the side of the mounting joint facing the guide groove, the clamping rod is engaged with the inner side of the guide groove, and a positioning plate is provided at the position where the mounting joint is attached to the side of the ladder, a positioning knob is provided on the outer side of the positioning plate, an adapter is provided on the back of the mounting joint, and an adapter hole is provided in the middle of the adapter.

[0010] Preferably, two pairs of ear plates are symmetrically provided on both sides of the front end surface of the hook, and a pin hole is provided in the middle of the ear plates. Each pair of ear plates is engaged with the corresponding adapter and connected to the adapter through a pin; a strip hole is laterally provided on the top of the hook.

[0011] Preferably, studs are provided at the front ends of both sides of the bottom surface of the hanger, the studs are arranged through the strip holes, and one end of the stud passing through the strip holes is provided with a pressure cap, and the pressure cap is pressed tightly on the hook.

[0012] Preferably, plug-in grooves are symmetrically provided on both sides of the bottom surface of the ladder body, and top screws are provided on the side surfaces of the ladder body aligned with the plug-in grooves, and a support joint is installed inside the plug-in groove, and the top screw rests on the support joint.

[0013] Preferably, the support joint is in a U-shaped structure, and a rubber sleeve is provided on the bottom of the support joint. Both end surfaces of the support joint are provided with plug connectors, and the plug connectors are inserted into the plug slots.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The back of the ladder body of this utility model is slidably connected to mounting joints on both sides, and the mounting joints are connected to hooks. The hooks are rotatably connected to the mounting joints, which facilitates the adjustment of the inclination angle of the ladder body. At the same time, the mounting joints can drive the hooks to adjust up and down, which is convenient for adjusting the height of the hooks according to the height of the sound barrier. The hooks of the ladder body can be flexibly adjusted and used, making it easy to hang the hooks on the top of the sound barrier bracket, ensuring sufficient stability of the ladder body. And when disassembling, you only need to lift the ladder body to separate the hooks from the bracket. The operation is simple and convenient, and the ladder can be flexibly moved.

[0016] 2. A support joint is installed at the bottom of the ladder body of the present invention, which can increase the friction between the ladder and the bottom surface, ensuring that the bottom of the ladder is sufficiently stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0018] Figure 2 This is a schematic structural diagram of the ladder body of the utility model;

[0019] Figure 3It is a structural diagram of the installation joint of the utility model;

[0020] Figure 4 It is a structural diagram of the hook of the utility model;

[0021] Figure 5 It is a structural diagram of the utility model hanger;

[0022] Figure 6 It is a structural schematic diagram of the support joint of the utility model.

[0023] In the figure: 1. Ladder body; 11. Tread; 12. Guide groove; 13. Connecting groove; 14. Top screw; 2. Mounting joint; 21. Clamping rod; 22. Positioning plate; 23. Positioning knob; 24. Adapter; 25. Adapter hole; 3. Hook; 31. Ear plate; 32. Pin hole; 33. Strip hole; 4. Hanger; 41. Stud; 42. Pressure cap; 5. Support joint; 51. Rubber sleeve; 52. Connector. DETAILED DESCRIPTION

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figure 1 and Figure 2 As shown, a safety fixing device for installing a ladder for a highway sound barrier includes a ladder body 1. The ladder body 1 is convenient for workers to climb. Guide grooves 12 are symmetrically provided on both sides of the back of the ladder body 1. Installation joints 2 are installed inside the guide grooves 12. The guide grooves 12 are convenient for guiding the installation joints 2, and the installation joints 2 are convenient for adjusting up and down in the guide grooves 12. The installation joints 2 can be adjusted up and down in the guide grooves 12. The rear ends of the two installation joints 2 are rotatably connected with hooks 3. The hooks 3 are U-shaped. This structure makes it convenient to adjust the hooks 3 to a suitable height according to usage requirements, so that the hooks 3 can be conveniently hung on the top of the sound barrier bracket. A hanger 4 is installed on the top of the hook 3. The hanger 4 is detachably connected to the hook 3. The hanger 4 is convenient for placing tools commonly used by workers, making it convenient to take and use the tools.

[0028] like Figure 2 As shown, the inner side of the ladder body 1 is provided with a plurality of pedals 11 from top to bottom, and the pedals 11 are convenient for the staff to step on the pedals 11 and facilitate the staff to climb. The guide groove 12 is open at the top and not open at the bottom, and is used to install the joint 2 and disassemble it from the top of the guide groove 12.

[0029] like Figure 3 As shown, the mounting joint 2 is provided with a latching rod 21 on the side facing the guide slot 12. Lever 21 engages with the inside of the guide slot 12, facilitating the vertical movement and use of the mounting joint 2 along the guide slot 12. Furthermore, a positioning plate 22 is provided where the mounting joint 2 contacts the side of the ladder. A positioning knob 23 is provided on the outside of the positioning plate 22. These positioning knobs 23 are used to secure the position of the mounting joint 2. An adapter 24 is provided on the back of the mounting joint 2, with an adapter hole 25 located in the middle. The combination of adapter 24 and adapter hole 25 facilitates the rotational connection between the mounting joint 2 and the hook 3.

[0030] like Figure 4 As shown, two pairs of ear plates 31 are symmetrically provided on both sides of the front end surface of the hook 3, and a pin hole 32 is provided in the middle of the ear plate 31. Each pair of ear plates 31 is engaged with the corresponding adapter 24 and is connected to the adapter 24 through a pin; a strip hole 33 is horizontally provided on the top of the hook 3, and the strip hole 33 is used to install the hanger 4 to facilitate the use of the hanger 4.

[0031] like Figure 5 As shown, studs 41 are provided at the front ends of both sides of the bottom surface of the hanger 4, and the studs 41 are set through the strip holes 33, and a pressure cap 42 is provided at one end of the stud 41 passing through the strip holes 33, and the pressure cap 42 is pressed tightly on the hook 3; this structure ensures that the hanger 4 is stably connected to the hook 3, ensuring the stable use of the hanger 4.

[0032] Working principle: When in use, adjust the height of the installation joint 2 and the hook 3 on the ladder according to the installation height of the highway sound barrier, so that the height of the hook 3 can meet the use requirements, and then tighten the positioning knob 23 and fix the position of the hook 3. After that, the staff can hang the hook 3 on the top of the ladder body 1 on the top of the sound barrier bracket, and then put the bottom of the ladder on the ground to climb up the ladder to work. Compared with the existing technology, the ladder body 1 of the present application is slidably connected to the two sides of the back of the ladder body 1, and the installation joint 2 is connected to the hook 3. The hook 3 is rotatably connected to the installation joint 2, which is convenient for the ladder body 1 to adjust the inclination angle. At the same time, the installation joint 2 can drive the hook 3 to adjust up and down, which is convenient for adjusting the height of the hook 3 according to the height of the sound barrier, so that the hook 3 of the ladder body 1 can be flexibly adjusted and used, and the hook 3 is convenient for hanging on the top of the sound barrier bracket, ensuring that the ladder body 1 is sufficiently stable. And when disassembling, you only need to lift the ladder body 1 to separate the hook 3 from the bracket. The operation is simple and convenient, and it is convenient for the ladder to be flexibly transferred.

[0033] Example 2

[0034] like Figure 1 and Figure 2 As shown, a safety fixing device for installing a ladder for a highway sound barrier includes a ladder body 1. The ladder body 1 is convenient for workers to climb. Guide grooves 12 are symmetrically provided on both sides of the back of the ladder body 1. Installation joints 2 are installed inside the guide grooves 12. The guide grooves 12 are convenient for guiding the installation joints 2, and the installation joints 2 are convenient for adjusting up and down in the guide grooves 12. The installation joints 2 can be adjusted up and down in the guide grooves 12. The rear ends of the two installation joints 2 are rotatably connected with hooks 3. The hooks 3 are U-shaped. This structure makes it convenient to adjust the hooks 3 to a suitable height according to usage requirements, so that the hooks 3 can be conveniently hung on the top of the sound barrier bracket. A hanger 4 is installed on the top of the hook 3. The hanger 4 is detachably connected to the hook 3. The hanger 4 is convenient for placing tools commonly used by workers, making it convenient to take and use the tools.

[0035] like Figure 2 As shown, the inner side of the ladder body 1 is provided with a plurality of pedals 11 from top to bottom, and the pedals 11 are convenient for the staff to step on the pedals 11 and facilitate the staff to climb. The guide groove 12 is open at the top and not open at the bottom, and is used to install the joint 2 and disassemble it from the top of the guide groove 12.

[0036] like Figure 3 As shown, the mounting joint 2 is provided with a latching rod 21 on the side facing the guide slot 12. Lever 21 engages with the inside of the guide slot 12, facilitating the vertical movement and use of the mounting joint 2 along the guide slot 12. Furthermore, a positioning plate 22 is provided where the mounting joint 2 contacts the side of the ladder. A positioning knob 23 is provided on the outside of the positioning plate 22. These positioning knobs 23 are used to secure the position of the mounting joint 2. An adapter 24 is provided on the back of the mounting joint 2, with an adapter hole 25 located in the middle. The combination of adapter 24 and adapter hole 25 facilitates the rotational connection between the mounting joint 2 and the hook 3.

[0037] like Figure 4 As shown, two pairs of ear plates 31 are symmetrically provided on both sides of the front end surface of the hook 3, and a pin hole 32 is provided in the middle of the ear plate 31. Each pair of ear plates 31 is engaged with the corresponding adapter 24 and is connected to the adapter 24 through a pin; a strip hole 33 is horizontally provided on the top of the hook 3, and the strip hole 33 is used to install the hanger 4 to facilitate the use of the hanger 4.

[0038] like Figure 5 As shown, studs 41 are provided at the front ends of both sides of the bottom surface of the hanger 4, and the studs 41 are set through the strip holes 33, and a pressure cap 42 is provided at one end of the stud 41 passing through the strip holes 33, and the pressure cap 42 is pressed tightly on the hook 3; this structure ensures that the hanger 4 is stably connected to the hook 3, ensuring the stable use of the hanger 4.

[0039] like Figure 1 and Figure 2 As shown, plug-in grooves 13 are symmetrically provided on both sides of the bottom surface of the ladder body 1, and a top screw 14 is provided on the side of the ladder body 1 aligned with the plug-in groove 13. A support joint 5 is installed inside the plug-in groove 13, and the top screw 14 is against the support joint 5; this structure facilitates the selective disassembly and assembly of the support joint 5 according to usage requirements, and facilitates the flexible use of the support joint 5; at the same time, the support joint 5 is against the bottom surface to increase the friction between the support joint 5 and the ground, thereby ensuring that the bottom of the ladder body 1 is sufficiently stable.

[0040] like Figure 6 As shown, the support joint 5 has a U-shaped structure, and a rubber sleeve 51 is provided at the bottom of the support joint 5 to increase the friction between the support joint 5 and the ground. Plug connectors 52 are provided on both ends of the support joint 5, which are inserted into the plug slots 13 to facilitate the connection between the support joint 5 and the ladder body 1.

[0041] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A ladder safety fixing device for installing a highway sound barrier, comprising a ladder body (1), characterized in that: Guide grooves (12) are symmetrically provided on both sides of the back of the ladder body (1), and mounting joints (2) are installed inside the guide grooves (12). The mounting joints (2) can be adjusted up and down inside the guide grooves (12). The rear ends of the two mounting joints (2) are rotatably connected to hooks (3), and the hooks (3) are U-shaped. A hanger (4) is installed on the top of the hook (3), and the hanger (4) and the hook (3) are detachably connected.

2. A highway sound barrier installation ladder safety fixing device according to claim 1, characterized in that: The inner side of the ladder body (1) is provided with a plurality of pedals (11) from top to bottom, and the guide groove (12) is open at the top and closed at the bottom, and is used for installing the joint (2) and disassembling it from the top of the guide groove (12).

3. A highway sound barrier installation ladder safety fixing device according to claim 1, characterized in that: A clamping rod (21) is provided on one side of the mounting joint (2) facing the guide groove (12), and the clamping rod (21) is clamped in the inner side of the guide groove (12). A positioning plate (22) is provided at a position where the mounting joint (2) is in contact with the side of the ladder, and a positioning knob (23) is provided on the outer side of the positioning plate (22). An adapter (24) is provided on the back side of the mounting joint (2), and an adapter hole (25) is provided in the middle of the adapter (24).

4. A highway sound barrier installation ladder safety fixing device according to claim 3, characterized in that: Two pairs of ear plates (31) are symmetrically provided on both sides of the front end surface of the hook (3), and a pin hole (32) is provided in the middle of the ear plates (31). Each pair of ear plates (31) is engaged with the corresponding adapter (24) and connected to the adapter (24) through a pin; a strip hole (33) is transversely provided on the top of the hook (3).

5. A highway sound barrier installation ladder safety fixing device according to claim 4, characterized in that: The front ends of both sides of the bottom surface of the hanger (4) are provided with studs (41), which are arranged through the strip holes (33), and one end of the studs (41) passing through the strip holes (33) is provided with a pressing cap (42), which is pressed tightly on the hook (3).

6. A highway sound barrier installation ladder safety fixing device according to any one of claims 1 to 5, characterized in that: Plug-in grooves (13) are symmetrically provided on both sides of the bottom surface of the ladder body (1), and top screws (14) are provided on the sides of the ladder body (1) aligned with the plug-in grooves (13). A support joint (5) is installed inside the plug-in groove (13), and the top screw (14) abuts against the support joint (5).

7. A highway sound barrier installation ladder safety fixing device according to claim 6, characterized in that: The support joint (5) is of U-shaped structure, and a rubber sleeve (51) is provided on the bottom of the support joint (5). Both end surfaces of the support joint (5) are provided with plug joints (52), and the plug joints (52) are inserted into the plug slot (13).

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