Limiting type movable cart for bridge and culvert distribution box

Abstract

The utility model discloses a limit type mobile cart for a bridge and culvert distribution box, the cart comprises a frame main body, a winding support and a limit assembly, and the limit assembly comprises a piston piece fixed in a mounting layer and exposed out of the frame main body; the driving piece and the limiting plate are connected with the piston piece; when the distribution box is loaded, the driving piece forces the piston piece to act and pushes the limiting plate to lock the distribution box. Compared with the prior art, the limiting type movable cart for the bridge and culvert distribution box has the advantages that the winding support is arranged on the cart frame body, cables of the distribution box can be wound on the winding support and cannot be scattered and stacked on the ground to be ground, the integrity of the cables is guaranteed, the cables cannot be damaged, and the service life of the cables is prolonged. And the condition that the worker is stumbled by the cable does not occur, and the power utilization safety is improved. And the limiting assembly is arranged on the frame main body, so that the distribution box can be limited and fixed, the trolley cannot turn over in the moving process, and the electricity utilization safety is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution box carriers, and in particular to a position-limiting mobile cart for a bridge and culvert distribution box. Background Art

[0002] In bridge and culvert projects, temporary power supply is not strictly implemented in accordance with the three-level power distribution system of the "Technical Specifications for Temporary Power Supply Safety at Construction Sites" (JGJ46-2005). It is common to use the secondary distribution box to directly connect to electrical appliances; when there are many electrical appliances, multiple electrical appliances will be connected to one circuit breaker; the third-level distribution box is far away from the second-level distribution box, exceeding the safe distance of 30m. This unsafe behavior increases the safety risk of power supply to varying degrees.

[0003] Traditional distribution boxes are temporarily piled on the ground for use, resulting in a messy use environment and further increasing the risk of power safety. Therefore, there is an urgent need for a movable temporary power platform to solve the power safety problem and keep the distribution box stable after installation. Utility Model Content

[0004] The purpose of the utility model is to provide a limited mobile trolley for a bridge culvert distribution box based on the above-mentioned deficiencies of the prior art. The trolley can effectively improve the installation stability of the distribution box by adopting a limiting component. The cable of the distribution box can be wound on a winding bracket without being crushed, thereby further improving the safety of electricity use.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A limited movable trolley for a bridge and culvert distribution box, wherein the trolley comprises:

[0007] A vehicle frame body, wherein the vehicle frame body has a mounting layer;

[0008] A wire winding bracket fixed on the frame body;

[0009] A limiting assembly movably connected to the frame body and partially located in the mounting layer, used to lock the distribution box loaded on the frame body; the limiting assembly includes:

[0010] A piston member fixed in the mounting layer and exposed from the frame body;

[0011] A driving member and a limiting plate connected to the piston member;

[0012] When the distribution box is loaded, the driving member forces the piston member to move and pushes the limiting plate to lock the distribution box.

[0013] Optionally, the piston member includes a piston chamber and an active piston rod and a passive piston rod movably disposed in the piston chamber, and the active piston rod and the passive piston rod can control each other to extend or retract.

[0014] Optionally, the active piston rod and the passive piston rod are connected to the same side of the piston chamber, and the passive piston rod is located above the active piston rod.

[0015] Optionally, the active piston rod is connected to the driving member with inclined surfaces therebetween, and when the driving member is affected by the gravity of the distribution box, the driving member controls the active piston rod to contract and extends the passive piston rod.

[0016] Optionally, the passive piston rod is connected to the limit plate, and the limit plate has a friction block for increasing friction with the distribution box. When the passive piston rod is extended, the limit plate approaches the distribution box so that the friction block contacts the distribution box; the limit plate also has a through hole for the active piston rod to pass through.

[0017] Optionally, a first spring is connected between the bottom of the driving member and the mounting layer, and a second spring is arranged between the limiting plate and the piston member.

[0018] Optionally, there are two limit assemblies, which are symmetrically arranged on the frame body, and the distribution box is located between the two limit assemblies.

[0019] Optionally, the number of the limiting components is three, and they are arranged in a triangular shape on the frame body, and the distribution box is located between the three limiting components.

[0020] Optionally, the cart further includes a handle for pushing.

[0021] Optionally, rollers are installed on the bottom of the cart.

[0022] The advantages of the utility model are:

[0023] The limited movable cart for the distribution box of the bridge culvert of the utility model has a winding bracket arranged on the main body of the frame, and the cables of the distribution box can be wound on the winding bracket, so that they will not be scattered and piled on the ground and crushed, thereby ensuring the integrity of the cables, preventing the cables from being damaged, and preventing workers from being tripped by the cables, thereby improving the safety of electricity use. In addition, a limit assembly is arranged on the main body of the frame, which can limit and fix the distribution box, so that the cart will not overturn during movement, further improving the safety of electricity use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a position-limited mobile cart for a bridge and culvert distribution box of the utility model;

[0025] Figure 2 It is a top view of the limited movable cart of the bridge and culvert distribution box of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the limit assembly of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the limiting plate of the utility model. DETAILED DESCRIPTION

[0028] The marks in the figure are: 1. frame body, 2. winding bracket, 3. distribution box, 4. limit assembly, 11. installation layer, 12. first frame layer, 13. second frame layer, 14. push handle, 15. roller, 41. piston member, 42. driving member, 43. limit plate, 411. piston chamber, 412. active piston rod, 413. passive piston rod, 414. second spring, 421. first spring, 431. friction block, 432. through hole.

[0029] Example: See Figure 1 , Figure 2 and Figure 3 As shown, a limiting mobile cart for a bridge culvert distribution box in one embodiment is shown, wherein the cart includes a frame body 1, the frame body 1 has a mounting layer 11; a winding bracket 2 fixed on the frame body 1; a limiting component 4 movably connected to the frame body 1 and partially located in the mounting layer 11, for locking the distribution box 3 loaded on the frame body 1; the limiting component 4 includes: a piston member 41 fixed in the mounting layer 11 and exposed to the frame body 1; a driving member 42 and a limiting plate 43 connected to the piston member 41; when the distribution box 3 is loaded, the driving member 42 forces the piston member 41 to move and pushes the limiting plate 43 to lock the distribution box 3.

[0030] In this embodiment, Figure 3 As shown, the piston member 41 includes a piston chamber 411 and an active piston rod 412 and a passive piston rod 413 movably disposed in the piston chamber 411 . The active piston rod 412 and the passive piston rod 413 can control each other to extend or retract.

[0031] In this embodiment, the active piston rod 412 and the passive piston rod 413 are connected to the same side of the piston chamber 411 , and the passive piston rod 413 is located above the active piston rod 412 .

[0032] In this embodiment, the active piston rod 412 is connected to the driving member 42 and the two are in inclined contact. When the driving member 42 is affected by the gravity of the distribution box 3, the driving member 42 controls the active piston rod 412 to contract and the passive piston rod 413 to extend.

[0033] In this embodiment, the passive piston rod 413 is connected to the limit plate 43, and the limit plate 43 has a friction block 431 for increasing the friction with the distribution box 3. When the passive piston rod 413 is extended, the limit plate 43 approaches the distribution box 3 so that the friction block 431 contacts the distribution box 3; the limit plate 43 also has a through hole 432 (such as Figure 4 as shown).

[0034] In this embodiment, continue to refer to Figure 3 As shown, a first spring 421 is connected between the bottom of the driving member 42 and the mounting layer 11 , and a second spring 414 is arranged between the limiting plate 43 and the piston member 41 .

[0035] In this embodiment, Figure 2 As shown, there are two limit assemblies 4, which are symmetrically arranged on the frame body 1, and the distribution box 3 is located between the two limit assemblies 4; there are three limit assemblies 4, which are arranged in a triangular shape on the frame body 1, and the distribution box 3 is located between the three limit assemblies 4.

[0036] In this embodiment, Figure 1 As shown, the cart further comprises a handle portion 14 for pushing, and rollers 15 are installed at the bottom of the cart.

[0037] The characteristics and functions of the present invention can be further understood through the following description.

[0038] This embodiment is mainly to solve the problem in the prior art that the distribution boxes are temporarily built when in use, resulting in cables being piled up everywhere, causing construction safety and inconvenience in moving the distribution boxes.

[0039] Therefore, the limiting assembly 4 is integrated and installed on the limiting movable trolley of the bridge culvert distribution box of this embodiment for installing, positioning and locking the distribution box 3. The trolley mainly includes a frame body 1, a winding bracket 2 fixed in the frame body 1, and a limiting assembly 4 movably installed in the frame body 1, as well as a handle 14 for pushing the trolley and a roller 15 for rolling movement.

[0040] Among them, the frame body 1 includes a first frame layer 12 and a second frame layer 13, and an installation layer 11 arranged at the bottom of the first frame layer 12. Part of the limiting assembly 4 is installed in the installation layer 11. When the cable (not shown) of the distribution box 3 is in process, a part of the cable can be wound on the winding bracket 2, and the remaining part can be placed on the second frame layer 13.

[0041] like Figure 3As shown, the active driving part of the limit assembly 4 is installed in the installation layer 11, and the passive driving part is exposed from the first frame layer 12. The limit assembly 4 includes a piston member 41, a driving member 42 connected to the piston member 41, and a limit plate 43 connected to the piston member 41. The limit plate 43 has a friction block 431 for contacting with the distribution box 3 and fixing and locking the distribution box 3. When working, the driving member 42 drives the piston member 41 to work and push the limit plate 43 to move toward the distribution box 3 and finally contact and firmly lock with the distribution box 3.

[0042] like Figure 2 As shown, the number of the limiting components 4 can be two, which are symmetrically arranged on the frame body 1. When working, the distribution box 3 is placed between the two limiting components 4. In other embodiments, the number of the limiting components 4 can be three, which are distributed in a triangular shape on the frame body 1. When working, the distribution box 3 is placed between the three limiting components 4.

[0043] Combination Figure 1 , Figure 2 and Figure 3 As shown, the working principle of the limited movable cart of the bridge culvert distribution box of this embodiment is as follows:

[0044] Align the distribution box 3 and place it between two or three limit assemblies 4 and gradually lower it. The bottom of the distribution box 3 contacts the driving member 42. When the distribution box 3 is completely lowered, the distribution box 3 presses the driving member 42 downward to compress the first spring 421. The active piston rod 412 in contact with the inclined surface of the driving member 42 shrinks toward the piston chamber 411. The air inside the piston chamber 411 moves toward the passive piston rod 413 and drives the passive piston rod 413 to extend. The second spring 414 is stretched and loaded with elastic force. When the passive piston rod 413 extends, it drives the limit plate 43 to move toward the distribution box 3, and finally makes the friction block 431 of the limit plate 43 firmly contact and lock the distribution box 3. When removing the distribution box 3, you only need to lift the distribution box 3 upward, and the driving member 42 will bounce upward and return to its original position due to the elasticity of the first spring 421. The second spring 414 contracts and drives the limiting plate 43 to move away from the distribution box 3 and return to its original position, while causing the passive piston rod 413 to contract, while the active piston rod 412 extends and contacts the driving member 42 at an inclined surface again.

[0045] In this embodiment, a double-layer trolley is made, and a brake device is installed on the wheel. A secondary distribution box and multiple tertiary distribution boxes are fixed on the upper layer of the trolley frame to ensure the effective implementation of "one machine, one switch, one box, and one leak" and meet the safety distance between the secondary distribution box and the tertiary distribution box; the cable and the grounding wire are placed on the lower layer of the frame to ensure that the cable is not crushed. The frame of corresponding length can be made according to the actual number of electrical appliances. A more suitable trolley is improved according to the usage. The previous temporary power use is changed from chaotic to the current temporary power use is standardized, which improves the standardization level. The three-level power distribution system and "one machine, one switch, one box, and one leak" can be implemented more effectively. The structure is simple, easy to use, convenient to transfer, and has a long service life. The improved trolley has increased width, shortened length, and effectively reduced the occupied space; the four small wheels are improved into two large wheels, which is more convenient to walk and also reduces the cost. In other embodiments, the frame body 1 can be made of galvanized square tubes, which are suitable in price, light in weight, convenient and durable. Other accessories can be vacuum rubber wheels, which are reasonably priced, wear-resistant, non-slip and easy to replace.

[0046] In summary, the limited movable cart for the bridge culvert distribution box of the utility model is provided with a winding bracket on the main body of the frame, and the cables of the distribution box can be wound on the winding bracket, so that they will not be scattered and piled on the ground and crushed, thereby ensuring the integrity of the cables, preventing cable damage, and preventing workers from tripping over the cables, thereby improving the safety of electricity use. In addition, a limit assembly is provided on the main body of the frame, which can limit and fix the distribution box, so that the cart will not overturn during movement, further improving the safety of electricity use.

[0047] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A limited movable cart for a bridge culvert distribution box, characterized in that: The cart comprises: A vehicle frame body, wherein the vehicle frame body has a mounting layer; A wire winding bracket fixed on the frame body; A limiting assembly movably connected to the frame body and partially located in the mounting layer, used to lock the distribution box loaded on the frame body; the limiting assembly includes: A piston member fixed in the mounting layer and exposed from the frame body; A driving member and a limiting plate connected to the piston member; When the distribution box is loaded, the driving member forces the piston member to move and pushes the limiting plate to lock the distribution box.

2. The position-limited mobile cart for the bridge and culvert distribution box according to claim 1 is characterized in that: The piston member comprises a piston chamber, and an active piston rod and a passive piston rod movably arranged in the piston chamber. The active piston rod and the passive piston rod can be mutually controlled to extend or retract.

3. The position-limited mobile cart for the bridge and culvert distribution box according to claim 2 is characterized in that: The active piston rod and the passive piston rod are connected on the same side of the piston chamber, and the passive piston rod is located above the active piston rod.

4. The position-limited mobile cart for the bridge and culvert distribution box according to claim 3 is characterized in that: The active piston rod is connected to the driving member with inclined surfaces therebetween. When the driving member is affected by the gravity of the distribution box, the driving member controls the active piston rod to contract and extends the passive piston rod.

5. The position-limited mobile cart for the bridge and culvert distribution box according to claim 4 is characterized in that: The passive piston rod is connected to the limit plate, and the limit plate has a friction block for increasing friction with the distribution box. When the passive piston rod is extended, the limit plate approaches the distribution box to make the friction block contact with the distribution box; the limit plate also has a through hole for the active piston rod to pass through.

6. The position-limited mobile cart for the bridge and culvert distribution box according to claim 5, characterized in that: A first spring is connected between the bottom of the driving member and the mounting layer, and a second spring is arranged between the limiting plate and the piston member.

7. The position-limited mobile cart for the bridge and culvert distribution box according to claim 1, characterized in that: The number of the limiting components is two, and they are symmetrically arranged on the frame body, and the distribution box is located between the two limiting components.

8. The position-limited mobile cart for the bridge and culvert distribution box according to claim 1, characterized in that: The number of the limiting components is three, and they are arranged in a triangle shape on the frame body, and the distribution box is located between the three limiting components.

9. The position-limited mobile cart for the bridge and culvert distribution box according to claim 1, characterized in that: The cart also includes a handle portion for pushing.

10. The position-limited mobile cart for the bridge and culvert distribution box according to claim 1, characterized in that: Rollers are installed at the bottom of the cart.

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