Handcart transfer trolley for front lower chamber of switchgear

Abstract

The utility model discloses a switchgear front lower chamber handcart transfer trolley, which relates to the technical field of switchgear handcart transfer, and comprises a frame, a supporting plate, rollers and a height adjusting mechanism, the height adjusting mechanism comprises an adjusting screw rod and an adjusting disc, the frame is positioned below the supporting plate, the rollers are arranged on the frame, and the adjusting screw rod is positioned below the supporting plate. The adjusting screw rod is connected with the side, facing the frame, of the supporting plate, the adjusting disc is rotatably installed on the frame, a threaded hole is formed in the adjusting disc, and the adjusting screw rod is in threaded fit with the threaded hole. According to the technical scheme of the utility model, the adjusting disc and the adjusting screw rod are adopted, so that the supporting plate can be adjusted to the height matched with the front lower chamber handcart, the problem of height mismatching is solved, and the supporting plate can adapt to project sites with different foundation heights; the flexibility and applicability of the handcart transfer trolley for the front lower chamber of the switchgear in various environments are improved, and the transfer process is more efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear handcart transfer technical field, especially switchgear front lower chamber handcart transfer car. BACKGROUND

[0002] The structure of KYN28A-12 metal armored movable switchgear is divided into cabinet body and movable component (referred to as handcart) two parts, the weight of handcart is nearly 200kg, usually placed in the handcart chamber of cabinet body, located in the middle position of cabinet body, the height from ground is nearly 1m.In the equipment maintenance, the handcart needs to be removed from the cabinet, and the handcart is pushed into the cabinet after the maintenance is completed, so the special transfer car is prepared in the field.The transfer car plays an important role in the process of moving handcart in the field, not only needs to guide the handcart to smoothly enter and exit from the cabinet body and move in the power distribution room in the narrow space, but also needs to ensure that the structure of transfer car can support nearly 200kg handcart and ensure the safety of handcart in the moving process.

[0003] With the rapid development of electric power industry, the differentiated demand of users for switchgear is increasing, in order to meet the needs of users, increase the space utilization of switchgear and improve the maintenance efficiency of switchgear, the double handcart switch cabinet scheme is generated, that is, the handcart is configured in switch handcart chamber and front lower chamber.The height of front lower chamber handcart from ground in the cabinet body is less than 0.1m, and the operating height of conventional KYN28A-12 transfer car from ground is nearly 1m, which cannot realize the movement of front lower chamber handcart, resulting in the difficulty of switchgear maintenance. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a switchgear front lower chamber handcart transfer car, which aims to solve the problem of how to move the front lower chamber handcart.

[0005] In order to achieve the above purpose, the utility model provides a switchgear front lower chamber handcart transfer car, which comprises a frame, a supporting plate, a roller and a height adjusting mechanism, the height adjusting mechanism comprises an adjusting screw and an adjusting disc, the frame is located below the supporting plate, the roller is arranged on the frame, the adjusting screw is connected with the side of the supporting plate facing the frame, the adjusting disc is rotatably installed on the frame, the adjusting disc is provided with a threaded hole, the adjusting screw is screwed with the threaded hole, the adjusting disc can drive the supporting plate to move along the up-down direction relative to the frame through the adjusting screw, and the supporting plate is used for carrying the front lower chamber handcart.

[0006] In an embodiment, the frame is a ring-shaped frame, the number of the height adjusting mechanisms is at least two, and the at least two height adjusting mechanisms are divided into a first adjusting mechanism and a second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are arranged in a first direction and are spaced apart from each other on the ring-shaped frame.

[0007] In an embodiment, the height adjusting mechanism further comprises a guide sleeve, the guide sleeve is connected to a side of the ring-shaped frame away from the supporting plate, the ring-shaped frame is provided with a through hole, and the guide sleeve is provided with a guide hole, and the guide hole and the threaded hole are in communication with the through hole.

[0008] In an embodiment, the number of the first adjusting mechanisms is at least two, the at least two first adjusting mechanisms are arranged in a second direction and are spaced apart from each other on the ring-shaped frame, and the first direction and the second direction are perpendicular to each other.

[0009] and / or,

[0010] The number of the second adjusting mechanisms is at least two, the at least two second adjusting mechanisms are arranged in a second direction and are spaced apart from each other on the ring-shaped frame, and the first direction and the second direction are perpendicular to each other.

[0011] In an embodiment, the switch equipment front lower chamber handcart transfer trolley further comprises a positioning mechanism, the supporting plate comprises a plate body, a first folded edge and a second folded edge, the first folded edge and the second folded edge are respectively connected to two sides of the plate body arranged in a second direction and are both arranged in a direction towards the frame, the first folded edge is provided with a first mounting hole, and the second folded edge is provided with a second mounting hole, the positioning mechanism comprises a connecting rod, a handle, a hook and an elastic limiting piece, one end of the connecting rod is connected to the handle through the first mounting hole, the other end of the connecting rod is connected to the hook through the second mounting hole, the connecting rod is rotatably mounted on the plate body, two ends of the elastic limiting piece are respectively connected to the plate body and the connecting rod, the hook has an engaging position and a movable position, the hook can reciprocate between the engaging position and the movable position, the hook is located in the engaging position and can be engaged with the cabinet, the hook is located in the movable position and can be separated from the cabinet, and the elastic limiting piece can drive the hook to move from the movable position to the engaging position through the connecting rod.

[0012] In an embodiment, the supporting plate further comprises a limiting rod, the limiting rod is connected to the plate body, the connecting rod is provided with a through hole through which the limiting rod passes, and the limiting rod is rotatably connected to a hole wall of the through hole.

[0013] In an embodiment, the elastic limiting piece comprises a spring.

[0014] In an embodiment, the switchgear front lower chamber trolley further comprises a first positioning guide rod and a second positioning guide rod, the first positioning guide rod and the second positioning guide rod are both connected to a side of the first folded edge away from the second folded edge, the first positioning guide rod and the second positioning guide rod are spaced apart along a first direction, the first direction and the second direction are perpendicular, the first positioning guide rod is used for inserting a first positioning hole on the cabinet body, and the second positioning guide rod is used for inserting a second positioning hole on the cabinet body.

[0015] In an embodiment, the switchgear front lower chamber trolley further comprises a first limiting column and a second limiting column, the first limiting column and the second limiting column are both arranged on a side of the plate body away from the frame, and the first limiting column and the second limiting column are located at an end of the plate body close to the handle, the first limiting column and the second limiting column are spaced apart along a first direction, and the first direction and the second direction are perpendicular.

[0016] In an embodiment, the switchgear front lower chamber trolley further comprises a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are respectively connected to two sides of the supporting plate arranged opposite along a first direction, and the first limiting plate and the second limiting plate are both arranged extending away from the frame.

[0017] In the embodiment of the utility model, switchgear front lower chamber handcart transfer trolley is used to move in or move out from the power distribution room with narrow space to the cabinet of KYN28A-12 metal armored switchgear, simple structure, safety, lightness and applicability, can adjust the height of transfer trolley according to the scene, the supporting plate is the platform of bearing front lower chamber handcart, the frame is the basic structure of switchgear front lower chamber handcart transfer trolley, is located below the supporting plate, can bear the weight of supporting plate and front lower chamber handcart, the roller is arranged on the frame, convenient for the movement of switchgear front lower chamber handcart transfer trolley, height adjusting mechanism includes adjusting screw rod and adjusting disc, is used to adjust the height of supporting plate, adjusting screw rod can adopt cast iron material to increase the strength, adjusting screw rod and supporting plate rivet, when needing to adjust the height of supporting plate to match the front lower chamber handcart in the cabinet body on different foundation height, operating personnel can rotate adjusting disc, make adjusting screw rod move up and down in the threaded hole by the rotation of adjusting disc, then drive supporting plate to move up and down, in this way make supporting plate can be adjusted to the appropriate height as required, match the project scene of different foundation height, make the height of supporting plate can be flush with the guide rail of front lower chamber handcart in the cabinet body, convenient for front lower chamber handcart to move to the supporting plate, thereby make front lower chamber handcart can move in the power distribution room flexibly. The embodiment of the utility model adopts adjusting disc and adjusting screw rod, make supporting plate can be adjusted to the height matching with front lower chamber handcart, solve the problem of height mismatch, also make supporting plate can adapt to the project scene of different foundation height, improve the flexibility and applicability of switchgear front lower chamber handcart transfer trolley under various environments, by simple rotation of adjusting disc, operating personnel can easily adjust the height of supporting plate, need not complex operation or additional tool, make the transfer process more efficient, switchgear front lower chamber handcart transfer trolley can quickly adapt to different working scene, reduce the downtime caused by waiting for adjusting equipment, improve work efficiency, and the thread cooperation of adjusting screw rod and adjusting disc provides stable connection, ensure the stability of supporting plate during adjustment process, reduce the risk of equipment damage caused by improper height adjustment;By adopting the frame, the structural strength of switchgear front lower chamber handcart transfer trolley is improved, thereby improving the safety of supporting plate and front lower chamber handcart docking, protecting the safety of operating personnel and equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings from the structure shown in these drawings without creating labor.

[0019] Figure 1 It is the structural schematic drawing of the embodiment of the utility model switchgear front lower chamber handcart transfer trolley.

[0020] Figure 2 Another view structure schematic view of one embodiment of the utility model switchgear front lower chamber handcart transfer trolley;

[0021] Figure 3 Still another view structure schematic view of one embodiment of the utility model switchgear front lower chamber handcart transfer trolley;

[0022] Figure 4 Still another view structure schematic view of one embodiment of the utility model switchgear front lower chamber handcart transfer trolley;

[0023] Figure 5 For Figure 4 A-A section view schematic diagram.

[0024] Explanation of the attached drawings:

[0025] 100, switchgear front lower chamber handcart transfer trolley;1, frame;11, ring frame;111, first support frame;112, second support frame;113, first connecting frame;114, second connecting frame;115, through hole;2, supporting plate;21, plate body;22, first folding edge;221, first mounting hole;23, second folding edge;231, second mounting hole;24, limiting rod;3, roller;4, height adjusting mechanism;41, first adjusting mechanism;411, adjusting screw;412, adjusting disc;4121, threaded hole;413, guide sleeve;4131, guide hole;42, second adjusting mechanism;5, positioning mechanism;51, connecting rod;52, handle;53, hook;54, elastic limiting piece;6, first positioning guide rod;7, second positioning guide rod;8, first limiting column;9, second limiting column;110, first limiting plate;120, second limiting plate.

[0026] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. Specific implementation

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back), the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture, if the specific posture changes, then the directionality indication also changes accordingly.

[0029] In addition, if the embodiments of the utility model have the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, "and / or" or "and / or" appears in the whole text, which means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0030] The structure of KYN28A-12 metal armored movable switchgear is divided into cabinet body and movable part (referred to as handcart), the weight of handcart is nearly 200kg, usually placed in the handcart room of cabinet body, located in the middle position of cabinet body, the height from ground is nearly 1m. The handcart needs to be moved out of the cabinet on site during equipment maintenance, and the handcart is pushed into the cabinet after maintenance is completed, so a special transfer trolley is prepared on site. The transfer trolley plays an important role in the process of moving the handcart on site, not only needs to guide the handcart to smoothly enter and exit from the cabinet body in the narrow space of the distribution room and move in the distribution room, but also needs to ensure that the structure of the transfer trolley can support nearly 200kg of handcart, and ensure the safety of the handcart during movement.

[0031] With the rapid development of the electric power industry, the differentiated demand of users for switchgear is increasing, in order to meet the needs of users, increase the space utilization of switchgear, improve the maintenance efficiency of switchgear, the double-handcart switch cabinet scheme is generated, that is, the handcart is configured in the switch handcart room and the front lower room. The height of the front lower room handcart from the ground in the cabinet body is less than 0.1m, and the operating height of the conventional middle KYN28A-12 transfer trolley is nearly 1m from the ground, which cannot realize the movement of the front lower room handcart, resulting in difficult maintenance of switchgear.

[0032] Through careful research of the applicant, it is found that in addition to the fact that the height of the conventional middle-mounted KYN28A-12 transfer trolley is too high to match the height of the front lower room handcart, the fixed height of the conventional middle-mounted KYN28A-12 transfer trolley also limits the applicability thereof in different project sites, so that the handcart cannot be flexibly moved in the distribution room, and the conventional transfer trolley lacks a positioning and limiting device, which can easily cause the transfer trolley to be mispositioned or the handcart to slide out of the transfer trolley when the handcart is moved out, thereby endangering the safety of the operator and equipment.

[0033] The main purpose of the utility model is to provide a switchgear front lower room handcart transfer trolley to solve the problem of how to move the front lower room handcart.

[0034] Please refer to Figures 1 to 5 In an embodiment of the utility model, the switchgear front lower room handcart transfer trolley 100 comprises a frame 1, a supporting plate 2, a roller 3 and a height adjusting mechanism 4, the height adjusting mechanism 4 comprises an adjusting screw rod 411 and an adjusting disc 412, the frame 1 is located below the supporting plate 2, the roller 3 is arranged on the frame 1, the adjusting screw rod 411 is connected to one side of the supporting plate 2 facing the frame 1, the adjusting disc 412 is rotatably installed on the frame 1, the adjusting disc 412 is provided with a threaded hole 4121, the adjusting screw rod 411 is threadedly matched with the threaded hole 4121, the adjusting disc 412 can drive the supporting plate 2 to move along the up-down direction relative to the frame 1 through the adjusting screw rod 411, and the supporting plate 2 is used for bearing the front lower room handcart.

[0035] In the embodiment of the utility model, the switchgear front lower room handcart transfer trolley 100 is used for moving the front lower room handcart in or out of the cabinet of the KYN28A-12 metal armored removal type switchgear from the narrow distribution room, has the advantages of simple structure, safety, lightness and applicability, can flexibly adjust the height of the supporting plate 2 according to the site condition, the supporting plate 2 is a platform for bearing the front lower room handcart, the frame 1 is the basic structure of the switchgear front lower room handcart transfer trolley 100 and is located below the supporting plate 2 and can bear the weight of the supporting plate 2 and the front lower room handcart, the roller 3 is arranged on the frame 1 and facilitates the movement of the switchgear front lower room handcart transfer trolley 100, the height adjusting mechanism 4 comprises the adjusting screw rod 411 and the adjusting disc 412 and is used for adjusting the height of the supporting plate 2, the adjusting screw rod 411 can be made of cast iron to increase the strength, the adjusting screw rod 411 is riveted with the supporting plate 2, when it is necessary to adjust the height of the supporting plate 2 to match the front lower room handcart in the cabinet on different foundation levels, the operator can rotate the adjusting disc 412, the adjusting screw rod 411 moves up and down in the threaded hole 4121 through the rotation of the adjusting disc 412, and then drives the supporting plate 2 to move up and down, so that the supporting plate 2 can be adjusted to the appropriate height as required to match the project site on different foundation levels, the height of the supporting plate 2 can be flush with the guide rail of the front lower room handcart in the cabinet, and the front lower room handcart can be moved onto the supporting plate 2, so that the front lower room handcart can be flexibly moved in the distribution room.

[0036] The technical scheme of the utility model discloses through adopting adjusting disc 412 and adjusting screw rod 411, so that the supporting plate 2 can be adjusted to the height matched with the front lower chamber handcart, the problem of height mismatch is solved, and the supporting plate 2 can also adapt to the project site of different foundation heights, the flexibility and applicability of the switch equipment front lower chamber handcart transfer trolley 100 under various environments are improved, through simple rotation of the adjusting disc 412, the height of the supporting plate 2 can be easily adjusted by the operator, without complicated operation or additional tools, so that the transfer process is more efficient, the switch equipment front lower chamber handcart transfer trolley 100 can quickly adapt to different working scenes, the downtime caused by waiting for adjusting equipment is reduced, the work efficiency is improved, and the stable connection provided by the thread cooperation of the adjusting screw rod 411 and the adjusting disc 412 ensures the stability of the supporting plate 2 during the adjusting process, and the risk of equipment damage caused by improper height adjustment is reduced; through adoption of the frame 1, the structural strength of the switch equipment front lower chamber handcart transfer trolley 100 is improved, so that the safety of the butt joint of the supporting plate 2 and the front lower chamber handcart is improved, and the safety of the operator and the equipment is protected.

[0037] In the embodiment, the adjusting disc 412 abuts against one side of the frame 1 facing the supporting plate 2, so that the adjusting disc 412 can rotate relative to the frame 1, and the structure is simple, convenient to install and easy to maintain.

[0038] According to the embodiment of the utility model, the frame 1 is provided with a clamping groove, the adjusting disc 412 is located in the clamping groove, and the adjusting disc 412 is rotationally connected with the groove wall of the clamping groove, so that the adjusting disc 412 can rotate relative to the frame 1, and the structure is stable, convenient to disassemble and assemble.

[0039] Please refer to 3 and Figure 4In an embodiment, the frame 1 is a ring-shaped frame 11, the number of height adjustment mechanisms 4 is at least two, the at least two height adjustment mechanisms 4 are divided into a first adjustment mechanism 41 and a second adjustment mechanism 42, and the first adjustment mechanism 41 and the second adjustment mechanism 42 are arranged in a first direction on the ring-shaped frame 11; specifically, the ring-shaped frame 11 provides a larger support area and stability, can provide higher structural strength, helps to maintain the balance of the switchgear front lower chamber trolley transfer vehicle 100, improves the safety of the docking of the supporting plate 2 and the front lower chamber trolley, protects the safety of the operator and the equipment, the first direction is the left-right direction, the first adjustment mechanism 41 and the second adjustment mechanism 42 are arranged in the left-right direction on the ring-shaped frame 11, which helps to realize uniform distribution of force, reduces local stress concentration, can ensure that the supporting plate 2 remains balanced during height adjustment, avoids instability or tilting caused by unilateral adjustment, and the first adjustment mechanism 41 and the second adjustment mechanism 42 provide more adjustment options, which can be operated independently or cooperatively as needed to achieve different height and angle requirements, so that the switchgear front lower chamber trolley transfer vehicle 100 can better adapt to changes in different terrains and foundation heights, improving applicability and operational convenience.

[0040] In the present embodiment, the ring-shaped frame 11 is a square frame 1, the square frame 1 includes a first support frame 111, a second support frame 112, a first connecting frame 113, and a second connecting frame 114, the first support frame 111 and the second support frame 112 are arranged in a left-right direction, the first support frame 111 and the second support frame 112 are connected to the first connecting frame 113, the first support frame 111 and the second support frame 112 are connected to the second connecting frame 114, the first connecting frame 113 and the second connecting frame 114 are arranged in a front-back direction, the first adjustment mechanism 41 is arranged on the first support frame 111, the second adjustment mechanism 42 is arranged on the second support frame 112, and the number of rollers 3 is at least four, at least two of which are arranged in the front-back direction on the first support frame 111, and the remaining at least two rollers 3 are arranged in the front-back direction on the second support frame 112, thereby realizing the movement of the switchgear front lower chamber trolley transfer vehicle 100, and in order to improve the structural strength of the switchgear front lower chamber trolley transfer vehicle 100, the first support frame 111, the second support frame 112, the first connecting frame 113, and the second connecting frame 114 can all be made of channel steel. In other embodiments, the ring-shaped frame 11 can also be a circular frame 1, and the present embodiment does not limit the specific form of the ring-shaped frame 11.

[0041] In the embodiment, the rollers 3 can adopt directional wheels made of rubber material, and the number of the directional wheels is four, two of which are arranged at intervals on the side of the first support frame 111 away from the second support frame 112, and the remaining two are arranged at intervals on the side of the second support frame 112 away from the first support frame 111. By arranging four directional wheels, the stable support and movement of the switchgear front lower chamber handcart transfer trolley 100 are realized, and the directional wheels have high stability, strong carrying capacity and good durability, so that the switchgear front lower chamber handcart transfer trolley 100 can easily move the front lower chamber handcart to the designated position along the fixed route while stably carrying the front lower chamber handcart weighing nearly 200 kg. In addition, the four directional wheels are arranged on the left and right sides of the annular frame 11 instead of the bottom of the annular frame 11, so that the adjustment height of the supporting plate 2 can meet the adjustment requirement that the height of the front lower chamber handcart in the cabinet body from the ground is less than 0.1 m.

[0042] Please refer to Figure 5 In an embodiment, the height adjustment mechanism 4 further comprises a guide sleeve 413 connected to the side of the annular frame 11 away from the supporting plate 2. The annular frame 11 is provided with a through hole 115, and the guide sleeve 413 is provided with a guide hole 4131. The guide hole 4131 and the threaded hole 4121 are in communication with the through hole 115. Specifically, the guide sleeve 413 is riveted to the side of the annular frame 11 away from the supporting plate 2, so that the adjustment screw 411 can pass through the threaded hole 4121, the through hole 115 and the guide hole 4131 in sequence, providing accurate guidance for the adjustment screw 411. This ensures that the adjustment screw 411 can move along the predetermined path during adjustment, making the adjustment screw 411 more stable during adjustment, reducing the risk caused by deviation or inclination, and making the operation more smooth, thereby improving the adjustment efficiency.

[0043] Please refer to Figure 3 and Figure 4In an embodiment, the number of the first adjusting mechanisms 41 is at least two, and the at least two first adjusting mechanisms 41 are arranged along a second direction on the annular frame 11, the first direction and the second direction being perpendicular; and / or, the number of the second adjusting mechanisms 42 is at least two, and the at least two second adjusting mechanisms 42 are arranged along the second direction on the annular frame 11, the first direction and the second direction being perpendicular; specifically, in the present embodiment, the second direction is the front-rear direction, and the number of the first adjusting mechanisms 41 and the number of the second adjusting mechanisms 42 are both two, the two first adjusting mechanisms 41 are arranged on the first support frame 111 along the front-rear direction, and the two second adjusting mechanisms 42 are arranged on the second support frame 112 along the front-rear direction, so as to provide more uniform support for the tray 2, enhance the stability and balance of the whole switch device front lower chamber handcart transfer trolley 100, and the two first adjusting mechanisms 41 and the two second adjusting mechanisms 42 also help to more evenly distribute the load, reduce the pressure on a single adjusting point, improve the carrying capacity and durability of the switch device front lower chamber handcart transfer trolley 100, and allow height adjustment at different support points, providing more adjustment options to adapt to different foundation heights and front lower chamber handcart heights.

[0044] Please refer to Figure 1 , Figure 3 and Figure 4In an embodiment, the switch equipment front lower chamber handcart transfer trolley 100 further comprises a positioning mechanism 5, the tray 2 comprises a tray body 21, a first folded edge 22 and a second folded edge 23, the first folded edge 22 and the second folded edge 23 are respectively connected to two sides of the tray body 21 opposite in the second direction, and the first folded edge 22 and the second folded edge 23 are both bent towards the frame 1, the first folded edge 22 is provided with a first mounting hole 221, and the second folded edge 23 is provided with a second mounting hole 231, the positioning mechanism 5 comprises a connecting rod 51, a handle 52, a hook 53 and an elastic limiting piece 54, one end of the connecting rod 51 is connected to the handle 52 through the first mounting hole 221, the other end of the connecting rod 51 is connected to the hook 53 through the second mounting hole 231, the connecting rod 51 is rotatably installed on the tray body 21, two ends of the elastic limiting piece 54 are respectively connected to the tray body 21 and the connecting rod 51, the hook 53 has a clamping position (not shown in the figure) and a movable position (not shown in the figure), the hook 53 can reciprocate between the clamping position and the movable position, the hook 53 is located at the clamping position, the hook 53 can be clamped and matched with the cabinet, the hook 53 is located at the movable position, and the hook 53 can be separated from the cabinet; the elastic limiting piece 54 can drive the hook 53 to move from the movable position to the clamping position through the connecting rod 51; specifically, the first folded edge 22 and the second folded edge 23 are respectively connected to two sides of the tray body 21 opposite in the front-rear direction, the positioning mechanism 5 is used to realize accurate positioning and fixing of the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet, so as to ensure the accuracy of operation, thereby avoiding the problem that the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet are misaligned, which endangers the safety of the operator and the equipment, ensuring the safety of the operator and the front lower chamber handcart, the operator can easily control the connecting rod 51 through the handle 52, and then control the movement of the hook 53, so as to realize quick fixing of the switch equipment front lower chamber handcart transfer trolley 100, the clamping and matching of the hook 53 with the cabinet provides additional safety, preventing the front lower chamber handcart from accidentally falling off the tray 2 during the transfer process, the hook 53 can move from the movable position to the clamping position through the elastic limiting piece 54, improving the flexibility and durability of operation, and facilitating the fixing and separation of the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet.When the front lower chamber handcart in the KYN28A-12 cabinet needs to be moved out on site, first, the switch equipment front lower chamber handcart transfer trolley 100 is moved to the cabinet, the height adjusting mechanism 4 is adjusted to the level of the cabinet, the initial position of the hook 53 is the clamping position, the handle 52 is first pushed, the handle 52 drives the hook 53 to move from the clamping position to the sliding position through the connecting rod 51, the switch equipment front lower chamber handcart transfer trolley 100 is continuously pushed to enable the hook 53 in the sliding position to extend into the limiting hole reserved on the cabinet, then the handle 52 is released, the elastic limiting piece 54 drives the hook 53 to move from the sliding position to the clamping position through the connecting rod 51, so that the hook 53 can be clamped with the hole wall of the limiting hole reserved on the cabinet, thereby realizing accurate positioning and fixing of the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet, after the front lower chamber handcart is pulled out from the cabinet and transferred to the supporting plate 2, the handle 52 is again pushed, the handle 52 drives the hook 53 to move from the clamping position to the sliding position through the connecting rod 51, the switch equipment front lower chamber handcart transfer trolley 100 is pulled away from the cabinet to enable the hook 53 in the sliding position to move away from the limiting hole reserved on the cabinet, when the hook 53 completely leaves the limiting hole, the handle 52 is released again, at this time, the operation of moving the front lower chamber handcart out of the cabinet can be completed, finally, the front lower chamber can be moved to the designated position through the roller 3.

[0045] In the embodiment, the first folding edge 22, the second folding edge 23 and the plate body 21 can be formed by bending a 2mm cold-rolled steel plate through a bending machine.

[0046] Please refer to Figure 3 and Figure 4 In an embodiment, the supporting plate 2 further comprises a limiting rod 24, the limiting rod 24 is connected with the plate body 21, the connecting rod 51 is provided with a through hole (not shown in the figure) for the limiting rod 24 to pass through, and the limiting rod 24 is rotationally connected with the hole wall of the through hole; specifically, the limiting rod 24 can freely rotate in the through hole, flexible limiting and positioning are provided, the connecting rod 51 can be prevented from sliding or moving during the transfer process, the safety of the operation is improved, the direct friction between the connecting rod 51 and the limiting rod 24 is reduced, the service life of the components is prolonged, and the checking and maintenance are made easier, and the maintenance cost is reduced.

[0047] According to an embodiment of the utility model, the supporting plate 2 further comprises a limiting rod 24, the limiting rod 24 is connected with the plate body 21, and the connecting rod 51 is hinged with the limiting rod 24, so that the connecting rod 51 can freely rotate relative to the limiting rod 24, flexible limiting and positioning are provided, and the connecting rod 51 can be prevented from sliding or moving during the transfer process, thereby improving the safety of the operation.

[0048] Please refer to Figure 3 andFigure 4 In an embodiment, the elastic limiting piece 54 comprises a spring; specifically, the two ends of the spring are connected with the plate body 21 and the connecting rod 51 respectively, the spring utilizes its elasticity to limit the movement range of the supporting plate 2 and the connecting rod 51, ensures that the hook 53 can be driven to move from the sliding position to the clamping position through the connecting rod 51, can effectively prevent the connecting rod 51 and the hook 53 from accidentally sliding or moving during operation, ensures the safety of operation, can reduce mechanical wear and damage, prolongs the service life of the equipment, and the spring has a simple structure, is convenient to install and maintain, and can reduce the complexity of use and maintenance. In other embodiments, the elastic limiting piece 54 can also be made of other elastic materials, and the present embodiment does not limit this.

[0049] Please refer to Figure 1 In an embodiment, the switch equipment front lower chamber handcart transfer trolley 100 further comprises a first positioning guide rod 6 and a second positioning guide rod 7, the first positioning guide rod 6 and the second positioning guide rod 7 are both connected with the side of the first folded edge 22 away from the second folded edge 23, the first positioning guide rod 6 and the second positioning guide rod 7 are spaced apart along the first direction, the first direction is perpendicular to the second direction, the first positioning guide rod 6 is used for being inserted into the first positioning hole on the cabinet body, and the second positioning guide rod 7 is used for being inserted into the second positioning hole on the cabinet body; specifically, the first positioning guide rod 6 and the second positioning guide rod 7 can be riveted with the side of the first folded edge 22 away from the second folded edge 23, the first positioning guide rod 6 and the second positioning guide rod 7 are inserted into the first positioning hole and the second positioning hole on the cabinet body respectively, the positioning accuracy of the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet body during the transfer process is improved, the problem that the front lower chamber handcart accidentally falls off during the transfer process due to the misalignment of the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet body, thereby endangering the safety of the operator and the equipment, is effectively avoided, the safety of operation is improved, and during the transfer process, the operator can quickly insert the first positioning guide rod 6 and the second positioning guide rod 7 into the corresponding first positioning hole and second positioning hole, the positioning process of the switch equipment front lower chamber handcart transfer trolley 100 and the cabinet body is simplified, and the transfer efficiency is improved.

[0050] Please refer to Figure 1In an embodiment, the switchgear front lower chamber handcart transfer trolley 100 further comprises a first limiting column 8 and a second limiting column 9, both of which are arranged on the side of the plate body 21 away from the frame 1, and are located at the end of the plate body 21 close to the handle 52, and are arranged in a first direction, and the first direction is perpendicular to the second direction; specifically, the first limiting column 8 and the second limiting column 9 are arranged in a left-right direction, and are bolted to the plate body 21, and the front lower chamber handcart self-hook 53 moves into the plate body 21 in the direction of the handle 52, and the first limiting column 8 and the second limiting column 9 are located at the end of the plate body 21 close to the handle 52, which can limit the movement range of the front lower chamber handcart on the plate body 21, prevent the front lower chamber handcart from sliding or moving out of the plate body 21 during the transfer process, ensure that the front lower chamber handcart can safely stay on the plate body 21, protect the safety of the operator and the equipment, improve the safety and stability of the operation, and the design of the first limiting column 8 and the second limiting column 9 makes it easier to check and maintain, which helps to discover and solve potential problems in time.

[0051] Please refer to Figure 1 and Figure 5 In an embodiment, the switchgear front lower chamber handcart transfer trolley 100 further comprises a first limiting plate 110 and a second limiting plate 120, both of which are connected to the two sides of the supporting plate 2 arranged in a first direction, and both of which extend away from the frame 1; specifically, the first limiting plate 110 and the second limiting plate 120 are arranged on the left and right sides of the supporting plate 2, so that the first limiting plate 110 and the second limiting plate 120 can limit the movement range of the front lower chamber handcart in the left-right direction relative to the supporting plate 2, and the front lower chamber handcart is located between the first limiting plate 110 and the second limiting plate 120, which can prevent the front lower chamber handcart from sliding or moving out of the supporting plate 2 from the left or right side due to misoperation during the transfer process, thereby enhancing the stability and safety of the front lower chamber handcart during the transfer process, protecting the safety of the operator and the equipment, and the design of the first limiting plate 110 and the second limiting plate 120 makes it easier to check and maintain, which helps to discover and solve potential problems in time.

[0052] The above-mentioned is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A switchgear front lower chamber trolley transfer car, characterized by, The switch equipment front lower chamber handcart transfer trolley comprises a frame, a supporting plate, rollers and a height adjusting mechanism, the height adjusting mechanism comprises an adjusting screw rod and an adjusting disc, the frame is located below the supporting plate, the rollers are arranged on the frame, the adjusting screw rod is connected to one side of the supporting plate facing the frame, the adjusting disc is rotatably arranged on the frame, the adjusting disc is provided with a threaded hole, the adjusting screw rod is in threaded connection with the threaded hole, the adjusting disc can drive the supporting plate to move along the up-down direction relative to the frame through the adjusting screw rod, and the supporting plate is used for carrying the front lower chamber handcart.

2. The switchgear front lower compartment trolley transporter of claim 1, wherein, The frame is a ring-shaped frame, the number of the height adjusting mechanisms is at least two, the at least two height adjusting mechanisms are divided into a first adjusting mechanism and a second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are arranged at intervals along a first direction on the ring-shaped frame.

3. The switchgear front lower compartment trolley transport vehicle according to claim 2, characterized in that, The height adjusting mechanism further comprises a guide sleeve, the guide sleeve is connected to one side of the ring-shaped frame away from the supporting plate, the ring-shaped frame is provided with a through hole, and the guide sleeve is provided with a guide hole, the guide hole and the threaded hole are in communication with the through hole.

4. The switchgear front lower compartment trolley transport vehicle according to claim 3, characterized in that, The number of the first adjusting mechanisms is at least two, the at least two first adjusting mechanisms are arranged at intervals along a second direction on the ring-shaped frame, and the first direction and the second direction are perpendicular to each other. And / or, The number of the second adjusting mechanisms is at least two, the at least two second adjusting mechanisms are arranged at intervals along a second direction on the ring-shaped frame, and the first direction and the second direction are perpendicular to each other.

5. The switchgear front lower compartment trolley transporter of any one of claims 1 to 4, characterized in that The switch equipment front lower chamber handcart transfer trolley further comprises a positioning mechanism, the supporting plate comprises a plate body, a first folded edge and a second folded edge, the first folded edge and the second folded edge are respectively connected to two sides of the plate body opposite to each other along a second direction, and the first folded edge and the second folded edge are both arranged in a folded manner towards the frame, the first folded edge is provided with a first mounting hole, the second folded edge is provided with a second mounting hole, the positioning mechanism comprises a connecting rod, a handle, a hook and an elastic limiting piece, one end of the connecting rod is connected to the handle through the first mounting hole, the other end of the connecting rod is connected to the hook through the second mounting hole, the connecting rod is rotatably arranged on the plate body, two ends of the elastic limiting piece are respectively connected to the plate body and the connecting rod, the hook has a clamping position and a movable position, the hook can reciprocate between the clamping position and the movable position, the hook is located in the clamping position and can be clamped with a cabinet, the hook is located in the movable position and can be separated from the cabinet, and the elastic limiting piece can drive the hook to move from the movable position to the clamping position through the connecting rod.

6. The switchgear front lower compartment trolley transport vehicle according to claim 5, characterized in that The supporting plate further comprises a limiting rod, the limiting rod is connected to the plate body, the connecting rod is provided with a through hole through which the limiting rod passes, and the limiting rod is rotatably connected to the hole wall of the through hole.

7. The switchgear front lower compartment trolley transport vehicle according to claim 5, characterized in that, The elastic limiting piece comprises a spring.

8. The switchgear front lower compartment trolley transport vehicle according to claim 5, characterized in that, The switch equipment front lower chamber handcart transfer trolley further comprises a first positioning guide rod and a second positioning guide rod, the first positioning guide rod and the second positioning guide rod are connected with the side of the first folded edge away from the second folded edge, the first positioning guide rod and the second positioning guide rod are spaced apart along a first direction, the first direction and the second direction are perpendicular, the first positioning guide rod is used for inserting a first positioning hole on the cabinet body, and the second positioning guide rod is used for inserting a second positioning hole on the cabinet body.

9. The switchgear front lower compartment trolley transport vehicle of claim 5, wherein, The switch equipment front lower chamber handcart transfer trolley further comprises a first limiting column and a second limiting column, the first limiting column and the second limiting column are arranged on the side of the plate body away from the frame, and the first limiting column and the second limiting column are located at the end of the plate body close to the handle, the first limiting column and the second limiting column are spaced apart along a first direction, and the first direction and the second direction are perpendicular.

10. The switchgear front lower compartment trolley transport cart of any one of claims 1 to 4, wherein, The switch equipment front lower chamber handcart transfer trolley further comprises a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are connected with the two sides of the supporting plate opposite in the first direction respectively, and the first limiting plate and the second limiting plate are both extended and arranged in the direction away from the frame.

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