Protective fence for crane

Abstract

The utility model relates to the technical field of cranes, in particular to a crane protective fence which comprises a bottom plate, a first inserting rod is fixed at the bottom end of the bottom plate, a supporting column is fixed at the top end of the bottom plate, a first inserting groove is formed in the middle of the supporting column, and a first connecting hole is formed in the side face of the top end of the first inserting groove. The fence has the advantages that the height of the fence can be conveniently adjusted, and the two fences can be quickly spliced and combined through the clamping holes, the clamping columns and the connecting plates; the bottom end of the fence can be stably placed on the ground through the first inserting rods and the second inserting rods, shaking and sliding are reduced, meanwhile, after the fence is used, the mounting plates and the mounting rods can be turned over, the rolling wheels are turned over by 180 degrees and then land, and therefore the fence can be conveniently pushed, pulled and moved.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to a crane protective fence. Background Technology

[0002] Crane safety barriers are primarily used for safety protection around cranes.

[0003] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also known as an overhead crane, gantry crane, or hoist. During operation, cranes need to be equipped with protective railings. These railings are mainly used in residential areas, highways, commercial areas, public places, and other places to protect personal safety and equipment.

[0004] Therefore, a crane protective fence is proposed.

[0005] For example, the prior art Chinese patent publication number "CN221343669U" provides a crane protective fence, which includes two vertical bars attached to the frame of the power distribution control panel, and a scissor-type telescopic guardrail between the two vertical bars, with the two vertical bars hinged to the two vertical bars on both sides of the telescopic guardrail.

[0006] This device uses two vertical bars attached to the frame of the power distribution control panel to make the telescopic railing close to the frame, preventing it from being knocked over. This achieves physical isolation of the electrical components on the power distribution control panel frame, reducing electrical safety hazards. In addition, the telescopic railing is scissor-shaped and hollow, which can surround the power distribution control panel frame while reducing the impact on the heat dissipation of the power distribution control panel frame.

[0007] Existing crane safety barriers have a relatively fixed height, making it inconvenient to adjust the height flexibly according to the conditions of the crane's operating site. They are also inconvenient to combine and splice two barriers together. In addition, when the barriers are placed on the ground around the crane, they tend to sway and slip, resulting in instability. Furthermore, the barriers are quite heavy after use, making them inconvenient to push, pull, or move. Utility Model Content

[0008] The purpose of this utility model is to solve the shortcomings of existing technologies, such as the fixed height of the fence, which makes it inconvenient to flexibly adjust the height of the fence according to the conditions of the crane usage site, and also makes it inconvenient to combine and splice two fences together. Therefore, a crane protective fence is proposed.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] Design a crane safety fence, including a base plate, a first plug-in rod fixed to the bottom end of the base plate, a support column fixed to the top end of the base plate, a first plug-in groove in the middle of the support column, a first connecting hole on the side of the top end of the first plug-in groove, an adjusting rod threaded into the inside of the first plug-in groove, a first bolt inserted into the inside of the first connecting hole, the inner end of the first bolt abutting against the surface of the adjusting rod, a fixing plate fixed to the top end of the adjusting rod, snap-fit ​​holes at both ends of the fixing plate, snap-fit ​​posts inserted into the snap-fit ​​holes, connecting plates fixed to the top ends of the two snap-fit ​​posts, balance bars fixed to both ends of the base plate, mounting grooves inside the balance bars, mounting rods slidingly passing through the mounting grooves, and mounting plates fixed to both ends of the mounting rods.

[0011] Furthermore, a second connecting hole is provided at the top of each end of the mounting groove, and a second bolt is inserted into the internal thread of the second connecting hole, with the bottom end of the second bolt abutting against the surface of the mounting rod.

[0012] Furthermore, guide holes are provided at the four corners of the surface of the mounting plate, and guide rods slide through the inside of the guide holes. Nuts are connected to the surface of the guide rods at the upper and lower ends of the guide holes. A pad is fixed to the bottom end of the guide rod, and baffles are fixed to both sides of the bottom end of the pad. Rollers are rotatably installed between the two baffles.

[0013] Furthermore, a second insertion groove is opened in the middle of the guide rod, and a second insertion rod is inserted into the internal thread of the second insertion groove. A limit plate is fixed to the top surface of the second insertion rod.

[0014] Furthermore, the base plate is a rectangular structure and is horizontally arranged; the bottom end of the first plug-in rod is a pointed structure; the support column and the adjusting rod are both vertically arranged; the first plug-in groove is a threaded groove structure; the adjusting rod is a threaded rod structure; the fixing plate is a rectangular plate structure and is horizontally arranged; and the connecting plate is a rectangular structure and is horizontally arranged.

[0015] Furthermore, the balance bar is a rectangular bar structure and is horizontally arranged; the mounting groove is a cylindrical groove structure and is horizontally arranged; the mounting plate is a rectangular plate structure and is horizontally arranged; and the second connecting hole is a threaded hole structure and is vertically arranged.

[0016] Furthermore, the guide rod is a threaded rod structure and is vertically arranged, the pad is a rectangular plate structure and is horizontally arranged, and the roller is horizontally arranged.

[0017] Furthermore, the second insertion slot is a threaded groove structure and is vertically arranged; the second insertion rod is a threaded rod structure and is vertically arranged, and is threadedly connected to the second insertion slot; its top end is a pointed structure; and the limiting plate is a circular plate structure, is horizontally arranged, and is close to the top end of the second insertion rod.

[0018] The crane protective fence proposed in this utility model has the following advantages:

[0019] 1. This utility model has a support column installed at the top of the base plate, and an adjustable rod is telescopically installed at the top of the support column through the first insertion slot, so that the tightness of the fence can be adjusted to different heights, thereby adapting to the needs of the crane use site, facilitating the adjustment of the fence height, and enabling quick splicing and combination between two fences through the snap-fit ​​holes, snap-fit ​​columns and connecting plates.

[0020] 2. This utility model has a first plug-in rod fixed at the bottom end of the base plate, balance rods fixed at both ends of the base plate, and a mounting plate that can be flipped up via the mounting rod. Rollers are set at the bottom end of the mounting plate via guide rods and pads, and a second plug-in rod is set at the top end of the mounting plate via a second plug-in slot. In this way, the bottom end of the fence can be stably placed on the ground by the first and second plug-in rods, reducing shaking and slippage. At the same time, after the fence is used, the mounting plate and mounting rods can be flipped up, and the rollers can be flipped 180 degrees to touch the ground, which makes it easy to push and pull the fence. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This utility model Figure 1 A schematic diagram of the base plate connecting to the support column;

[0023] Figure 3 This utility model Figure 1 A schematic diagram of the guide rod and pad;

[0024] Figure 4 This utility model Figure 1 A schematic diagram of the mounting rod and mounting plate;

[0025] Figure 5 This utility model Figure 1 A schematic diagram of the balance bar section;

[0026] Figure 6 This utility model Figure 1 A schematic diagram of the second connector rod.

[0027] In the diagram: 1. Base plate; 2. First insertion rod; 3. Support column; 4. Mounting plate; 5. Pad; 6. Guide rod; 7. Balance bar; 8. First bolt; 9. Adjusting rod; 10. Snap-fit ​​hole; 11. Snap-fit ​​column; 12. Connecting plate; 13. Fixing plate; 14. First connecting hole; 15. First insertion slot; 16. Roller; 17. Baffle; 18. Nut; 19. Second insertion slot; 20. Mounting rod; 21. Guide hole; 22. Mounting slot; 23. Second connecting hole; 24. Second insertion rod; 25. Limiting plate; 26. Second bolt. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The diagram shows a crane safety fence, comprising a base plate 1, a first insertion rod 2 fixed to the bottom end of the base plate 1, a support column 3 fixed to the top end of the base plate 1, a first insertion groove 15 in the middle of the support column 3, a first connecting hole 14 on the side of the top end of the first insertion groove 15, an adjusting rod 9 threaded into the inside of the first insertion groove 15, a first bolt 8 inserted into the inside of the first connecting hole 14, the inner end of the first bolt 8 abutting against the surface of the adjusting rod 9, a fixing plate 13 fixed to the top end of the adjusting rod 9, snap-fit ​​holes 10 at both ends of the fixing plate 13, snap-fit ​​posts 11 inserted into the inside of the snap-fit ​​holes 10, a connecting plate 12 fixed to the top end of the two snap-fit ​​posts 11, a balance rod 7 fixed to both ends of the base plate 1, an installation groove 22 inside the balance rod 7, an installation rod 20 slidingly passing through the installation groove 22, and an installation plate 4 fixed to both ends of the installation rod 20.

[0031] A support column 3 is installed at the top of the base plate 1, and an adjustment rod 9 is telescopically installed at the top of the support column 3 through the first insertion slot 15. This allows for the adjustment of the tightness of the fence to different heights, thus adapting to the needs of the crane's operating site and facilitating the adjustment of the fence's height. The two fences can be quickly spliced ​​together through the snap-fit ​​hole 10, snap-fit ​​column 11, and connecting plate 12.

[0032] The base plate 1 is a rectangular structure and is horizontally arranged. The bottom end of the first insertion rod 2 is a pointed structure. The support column 3 and the adjusting rod 9 are both vertically arranged. The first insertion groove 15 is a threaded groove structure. The adjusting rod 9 is a threaded rod structure. The fixing plate 13 is a rectangular plate structure and is horizontally arranged. The connecting plate 12 is a rectangular structure and is horizontally arranged.

[0033] Example 2

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The diagram shows a crane safety fence, comprising a base plate 1, a first insertion rod 2 fixed to the bottom end of the base plate 1, a support column 3 fixed to the top end of the base plate 1, a first insertion groove 15 in the middle of the support column 3, a first connecting hole 14 on the side of the top end of the first insertion groove 15, an adjusting rod 9 threaded into the inside of the first insertion groove 15, a first bolt 8 inserted into the inside of the first connecting hole 14, the inner end of the first bolt 8 abutting against the surface of the adjusting rod 9, a fixing plate 13 fixed to the top end of the adjusting rod 9, snap-fit ​​holes 10 at both ends of the fixing plate 13, snap-fit ​​posts 11 inserted into the inside of the snap-fit ​​holes 10, a connecting plate 12 fixed to the top end of the two snap-fit ​​posts 11, a balance rod 7 fixed to both ends of the base plate 1, an installation groove 22 inside the balance rod 7, an installation rod 20 slidingly passing through the installation groove 22, and an installation plate 4 fixed to both ends of the installation rod 20.

[0035] A support column 3 is installed at the top of the base plate 1, and an adjustment rod 9 is telescopically installed at the top of the support column 3 through the first insertion slot 15. This allows for the adjustment of the tightness of the fence to different heights, thus adapting to the needs of the crane's operating site and facilitating the adjustment of the fence's height. The two fences can be quickly spliced ​​together through the snap-fit ​​hole 10, snap-fit ​​column 11, and connecting plate 12.

[0036] The top ends of both ends of the mounting groove 22 are provided with second connecting holes 23, and second bolts 26 are inserted into the internal threads of the second connecting holes 23. The bottom ends of the second bolts 26 abut against the surface of the mounting rod 20.

[0037] The mounting plate 4 has guide holes 21 at its four corners. A guide rod 6 slides through the guide holes 21. Nuts 18 are connected to the surface of the guide rod 6 at the upper and lower ends of the guide holes 21. A pad 5 is fixed to the bottom end of the guide rod 6. Baffles 17 are fixed to both sides of the bottom end of the pad 5. A roller 16 is rotatably installed between the two baffles 17.

[0038] The guide rod 6 has a second insertion groove 19 in the middle, and a second insertion rod 24 is inserted into the internal thread of the second insertion groove 19. A limit plate 25 is fixed to the top surface of the second insertion rod 24.

[0039] A first connecting rod 2 is fixed at the bottom of the base plate 1, and balance rods 7 are fixed at both ends of the base plate 1. The mounting plate 4 can be flipped up and set by the mounting rod 20. Rollers 16 are set at the bottom of the mounting plate 4 by the guide rod 6 and the pad 5, and a second connecting rod 24 is set at the top of the mounting plate 4 by the second connecting groove 19. In this way, the bottom of the fence can be stably placed on the ground by the first connecting rod 2 and the second connecting rod 24, reducing shaking and slippage. At the same time, after the fence is used, the mounting plate 4 and the mounting rod 20 can be flipped up and the rollers 16 can be flipped 180 degrees to touch the ground, so as to facilitate pushing and pulling the fence.

[0040] The balance bar 7 is a rectangular bar structure and is horizontally arranged; the mounting groove 22 is a cylindrical groove structure and is horizontally arranged; the mounting plate 4 is a rectangular plate structure and is horizontally arranged; and the second connecting hole 23 is a threaded hole structure and is vertically arranged.

[0041] The guide rod 6 is a threaded rod structure and is vertically arranged; the pad 5 is a rectangular plate structure and is horizontally arranged; and the roller 16 is horizontally arranged.

[0042] The second insertion slot 19 is a threaded groove structure and is vertically arranged. The second insertion rod 24 is a threaded rod structure and is vertically arranged, and is threadedly connected to the second insertion slot 19. Its top end is a pointed structure. The limiting plate 25 is a circular plate structure, is horizontally arranged, and is close to the top end of the second insertion rod 24.

[0043] Working method: A support column 3 is installed at the top of the base plate 1, and an adjustment rod 9 is telescopically installed at the top of the support column 3 through the first insertion slot 15, so that the tightness of the fence can be adjusted to different heights to adapt to the needs of the crane use site, and the height of the fence can be easily adjusted. The two fences can be quickly spliced ​​and combined through the snap-fit ​​hole 10, snap-fit ​​column 11 and connecting plate 12.

[0044] A first connecting rod 2 is fixed at the bottom of the base plate 1, and balance rods 7 are fixed at both ends of the base plate 1. The mounting plate 4 can be flipped up and set by the mounting rod 20. Rollers 16 are set at the bottom of the mounting plate 4 by the guide rod 6 and the pad 5, and a second connecting rod 24 is set at the top of the mounting plate 4 by the second connecting groove 19. In this way, the bottom of the fence can be stably placed on the ground by the first connecting rod 2 and the second connecting rod 24, reducing shaking and slippage. At the same time, after the fence is used, the mounting plate 4 and the mounting rod 20 can be flipped up and the rollers 16 can be flipped 180 degrees to touch the ground, so as to facilitate pushing and pulling the fence.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crane guard comprising a base plate (1), characterised in that: The bottom end of the bottom plate (1) is fixedly connected with a first inserting rod (2), the top end of the bottom plate (1) is fixedly connected with a supporting column (3), the middle of the supporting column (3) is provided with a first inserting slot (15), the top end side of the first inserting slot (15) is provided with a first connecting hole (14), the inside of the first inserting slot (15) is screwed with an adjusting rod (9), the inside of the first connecting hole (14) is inserted with a first bolt (8), the inner end of the first bolt (8) abuts against the surface of the adjusting rod (9), the top end of the adjusting rod (9) is fixedly connected with a fixed plate (13), both ends of the fixed plate (13) are provided with clamping holes (10), the inside of the clamping holes (10) is inserted with clamping columns (11), the top end of the two clamping columns (11) is fixedly connected with a connecting plate (12), both ends of the bottom plate (1) are fixedly connected with a balance rod (7), the inside of the balance rod (7) is provided with a mounting slot (22), the inside of the mounting slot (22) is slidably connected with a mounting rod (20), both ends of the mounting rod (20) are fixedly connected with a mounting plate (4).

2. A protective barrier for a crane as claimed in claim 1, characterised in that: The top end of both ends of the mounting slot (22) is provided with a second connecting hole (23), the inside of the second connecting hole (23) is screwed with a second bolt (26), the bottom end of the second bolt (26) abuts against the surface of the mounting rod (20).

3. A protective barrier for a crane as claimed in claim 1, characterised in that: The surface of the mounting plate (4) is provided with guide holes (21) at four corners, the inside of the guide holes (21) is slidably connected with guide rods (6), the surface of the guide rods (6) and the positions of both ends of the guide holes (21) are connected with nuts (18), the bottom end of the guide rods (6) is fixedly connected with a backing plate (5), both sides of the bottom end of the backing plate (5) are fixedly connected with baffle plates (17), a roller (16) is rotatably mounted between the two baffle plates (17).

4. A protective barrier for a crane as claimed in claim 3, characterised in that: The middle of the guide rod (6) is provided with a second inserting slot (19), the inside of the second inserting slot (19) is screwed with a second inserting rod (24), the surface top end of the second inserting rod (24) is fixedly connected with a limiting plate (25).

5. A protective barrier for a crane as claimed in claim 1, characterised in that: The bottom plate (1) is of rectangular structure and is horizontally arranged, the bottom end of the first inserting rod (2) is of pointed end structure, the supporting column (3) and the adjusting rod (9) are both vertically arranged, the first inserting slot (15) is of threaded slot structure, the adjusting rod (9) is of threaded rod structure, the fixed plate (13) is of rectangular plate structure and is horizontally arranged, and the connecting plate (12) is of rectangular structure and is horizontally arranged.

6. A protective barrier for a crane as claimed in claim 2, characterised in that: The balance rod (7) is of rectangular rod structure and is horizontally arranged, the mounting slot (22) is of cylindrical slot structure and is horizontally arranged, the mounting plate (4) is of rectangular plate structure and is horizontally arranged, and the second connecting hole (23) is of threaded hole structure and is vertically arranged.

7. A protective barrier for a crane as claimed in claim 3, characterised in that: The guide rod (6) is of threaded rod structure and is vertically arranged, the backing plate (5) is of rectangular plate structure and is horizontally arranged, and the roller (16) is horizontally arranged.

8. A protective barrier for a crane as claimed in claim 4, characterised in that: The second plug-in slot (19) is a threaded slot structure, vertically arranged, the second plug-in rod (24) is a threaded rod structure, vertically arranged, and is in threaded fit connection with the second plug-in slot (19), the top end is a pointed end structure, the limiting plate (25) is a circular plate structure, horizontally arranged, and close to the top end of the second plug-in rod (24).

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