Electrical equipment tool trolley

Abstract

The invention provides an electrical equipment tool trolley which comprises a horizontal frame and a vertical frame, brake universal wheels are arranged at the bottom of the horizontal frame, and the vertical frame is vertically arranged at the top of one end of the horizontal frame; the supporting device is in sliding connection with the vertical frame, and the supporting device is used for bearing electrical equipment; the bottom end of the telescopic device is connected with the horizontal frame, and the top end of the telescopic device is connected with the bottom of the supporting device; the gradienter is arranged on the supporting device, and the gradienter is used for detecting the levelness of the supporting device. According to the electrical equipment tool trolley, the height of the supporting device is adjusted through the telescopic device, the gradienter is used for detecting the levelness of the supporting device, the requirement for the installation occasion of electrical equipment with the high levelness requirement is met, and the installation precision is improved; and the hydraulic operation is simple, labor-saving and high in efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment tooling, and in particular to an electrical equipment tooling trolley. Background Art

[0002] Electrical equipment is a general term for generators, transformers, power lines, circuit breakers and other equipment in the power system.

[0003] The installation of electrical equipment is an important and indispensable part of the construction project. The quality of its installation largely determines the safety of the power supply system. Since there are many challenges and problems in the actual installation process, such as the installation equipment has certain requirements for height and levelness, the installers are required to use efficient and convenient installation tools to ensure the efficiency, standardization and safety of the installation work, thereby ensuring the safety and stability of the electrical equipment used in the substation.

[0004] The electrical equipment tooling trolley in the prior art usually includes a body, a telescopic cylinder and a motor. The trolley body is lifted by the telescopic cylinder, and the operator can stand on the trolley body to perform high-altitude operations.

[0005] However, the electrical equipment tooling trolley in the prior art cannot monitor the horizontality and cannot meet the installation accuracy for special working conditions, which affects the efficiency and safety of the equipment installation operation. Summary of the invention

[0006] The present invention provides an electrical equipment tooling trolley, which is used to solve the defect that the prior art cannot meet the installation accuracy, realize levelness monitoring, and improve the installation accuracy.

[0007] The present invention provides an electrical equipment tooling trolley for installing electrical equipment, comprising: The vehicle body comprises a horizontal frame and a vertical frame, wherein a brake universal wheel is arranged at the bottom of the horizontal frame, and the vertical frame is vertically arranged at the top of one end of the horizontal frame; A supporting device, slidably connected to the vertical frame, the supporting device being used to carry electrical equipment; A telescopic device, the bottom end of which is connected to the horizontal frame, and the top end of which is connected to the bottom of the supporting device; A level is arranged on the supporting device, and the level is used to detect the horizontality of the supporting device.

[0008] According to an electrical equipment tooling trolley provided by the present invention, the supporting device comprises: A transition plate is slidably connected to the vertical frame, and the bottom side of the transition plate is connected to the telescopic device; A slide bar, disposed on the top of the transition plate, and the slide bar is perpendicular to the vertical frame; A slider, slidably connected to the slide rod; A bearing plate is connected to the slider and is used to bear electrical equipment.

[0009] According to an electrical equipment tooling trolley provided by the present invention, the telescopic device comprises: A vertical hydraulic cylinder is disposed between the horizontal frame and the transition plate; The power mechanism and the pressure relief valve are both connected to the vertical hydraulic cylinder, and the power mechanism is used to provide power when the vertical hydraulic cylinder is lifted, and the pressure relief valve is used to release pressure when the vertical hydraulic cylinder is lowered.

[0010] According to an electrical equipment tooling trolley provided by the present invention, the telescopic device also includes a telescopic rod, the vertical hydraulic cylinder is arranged on one side of the top of the horizontal frame, and the first end of the telescopic rod is connected to the bottom side of the transition plate away from the vertical hydraulic cylinder, and the second end of the telescopic rod is connected to the top side of the horizontal frame close to the vertical hydraulic cylinder.

[0011] According to an electrical equipment tooling trolley provided by the present invention, the telescopic device also includes a support seat, the support seat is arranged on the horizontal frame, and the support seat is hinged to the telescopic rod; and the support seat and the telescopic rod are arranged in pairs.

[0012] According to an electrical equipment tooling trolley provided by the present invention, the power mechanism comprises: A foot pedal connected to the extrusion column; A hollow column, containing hydraulic oil and connected to the vertical hydraulic cylinder; A spring is arranged in the hollow column, and the top end of the spring is connected to the extrusion column.

[0013] According to an electrical equipment tooling trolley provided by the present invention, a plurality of limiting holes and limiting columns are arranged on the bearing plate, the limiting columns are arranged in a one-to-one correspondence with the limiting holes, and the limiting columns are used to limit the electrical equipment.

[0014] According to an electrical equipment tooling trolley provided by the present invention, there are two sliding rods, and the supporting device also includes four bases. The two ends of each sliding rod are respectively connected to one of the bases, and each of the bases is provided with a horizontal adjustment mechanism.

[0015] According to an electrical equipment tooling trolley provided by the present invention, the horizontal adjustment mechanism includes a screw rod rotatably disposed on the base.

[0016] According to an electrical equipment tooling trolley provided by the present invention, the supporting device further includes a base, and the vertical hydraulic cylinder is arranged on the top of the base.

[0017] The electrical equipment tooling trolley provided by the present invention includes a horizontal frame and a vertical frame through a vehicle body. The bottom of the horizontal frame is provided with a brake universal wheel, and the vertical frame is vertically arranged on the top of one end of the horizontal frame; the supporting device is slidably connected to the vertical frame, the bottom end of the telescopic device is connected to the horizontal frame, and the top end is connected to the bottom of the supporting device, and the telescopic device adjusts the height of the supporting device; the spirit level is arranged on the supporting device, and the spirit level is used to detect the horizontality of the supporting device. The spirit level can detect the horizontality, meet the installation occasions of electrical equipment with high requirements for horizontality, and improve the installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the electrical equipment tooling trolley provided by the present invention.

[0020] Figure 2 It is a combined structural diagram of a load-bearing plate and electrical equipment in an electrical equipment tooling trolley provided by the present invention.

[0021] Reference numerals: 100. Electrical equipment; 1. Horizontal frame; 2. Vertical frame; 3. Brake universal wheel; 4. Telescopic device; 5. Level; 6. Transition plate; 7. Slide bar; 8. Slider; 9. Load-bearing plate; 10. Limit hole; 11. Limit column; 12. Base; 13. Horizontal adjustment mechanism; 41. Vertical hydraulic cylinder; 42. Power mechanism; 43. Pressure relief valve; 44. Telescopic rod; 45. Support seat; 46. Base; 421. Foot pedal; 422. Extrusion column; 423. Hollow column; 424. Spring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] Combine the following Figure 1-Figure 2 The present invention describes an electrical equipment tooling trolley for installing electrical equipment 100 , which includes a vehicle body, a supporting device, a telescopic device 4 and a level 5 .

[0025] like Figure 1 As shown, the vehicle body includes a horizontal frame 1 and a vertical frame 2. The bottom of the horizontal frame 1 is provided with a brake universal wheel 3, so that the trolley can be flexibly moved in different working environments, and when it needs to be installed in a fixed position, the brake function can ensure that the trolley will not slide, thereby enhancing the safety of work. The vertical frame 2 is vertically arranged at the top of one end of the horizontal frame 1; it provides a stable vertical support point for the subsequent support device and telescopic device, which not only ensures the stability of the support device, but also facilitates the adjustment of the height of the support device to meet the installation requirements of different electrical equipment 100.

[0026] The supporting device is slidably connected to the vertical frame 2, and the supporting device is used to carry the electrical device 100 to ensure the stability of the electrical device 100 during the installation process.

[0027] The bottom end of the telescopic device 4 is connected to the horizontal frame 1, and the top end is connected to the bottom of the support device. Through the telescopic function of the telescopic device, the overall height of the support device and the electrical equipment can be easily adjusted, making the installation process more flexible and convenient. In addition, the advantage of this setting is that the installation operation space requirement is small, the tooling does not occupy additional space other than the vehicle body, and it has high stability and simple operation.

[0028] The level meter 5 is arranged on the supporting device, and is used to detect the horizontality of the supporting device. During the installation process, the staff can adjust the position of the supporting device or the electrical equipment in real time by observing the indication of the level meter 5 until the ideal horizontal state is reached, which greatly improves the accuracy and efficiency of the installation of the electrical equipment and reduces the subsequent problems caused by the uneven installation.

[0029] Therefore, the electrical equipment tooling trolley provided by the present invention has a horizontal frame 1 welded with thickened channel steel, the height control of the supporting device is achieved through a telescopic device, and the brake universal wheels support the entire vehicle body, so that the installation trolley can move freely on the horizontal ground, so as to facilitate pushing the electrical equipment to be installed to the installation position.

[0030] like Figure 1 As shown, in a feasible embodiment of the present invention, the supporting device includes a transition plate 6, a sliding rod 7, a sliding block 8 and a bearing plate 9.

[0031] The transition plate 6 is slidably connected to the vertical frame 2, and the bottom side of the transition plate 6 is connected to the telescopic device 4. The transition plate 6 serves as a bridge connecting the vertical frame 2 and the telescopic device 4, and is also a fixing base for the slide bar 7. The transition plate 6 can slide on the vertical frame 2 to adjust the position of the entire support device in the vertical direction. The bottom side of the transition plate 6 is connected to the telescopic device 4, so that the telescopic action of the telescopic device can be directly transmitted to the support device, thereby changing the overall height of the support device and the electrical equipment.

[0032] The slide bar 7 is arranged on the top of the transition plate 6, and the slide bar 7 is slidably connected with the vertical frame 2. The vertical slider 8 is slidably connected with the slide bar 7, so that the horizontal position of the bearing plate 9 and the electrical equipment 100 can be easily changed to meet different installation requirements.

[0033] The bearing plate 9 is connected to the slider 8, and the bearing plate 9 is used to carry the electrical device 100. The bearing plate 9 needs to have sufficient strength and rigidity to ensure that it will not be deformed or damaged when carrying the electrical device. At the same time, the surface of the bearing plate 9 should be flat and smooth to facilitate the placement and fixation of the electrical device 100.

[0034] In the above embodiments, the transition plate 6, the slide bar 7, the slide block 8 and the bearing plate 9 cooperate with each other to achieve flexible support and precise adjustment of the electrical device 100 in the vertical and horizontal directions.

[0035] In a feasible embodiment of the present invention, the telescopic device 4 includes a vertical hydraulic cylinder 41, a power mechanism 42 and a pressure relief valve 43, and the vertical hydraulic cylinder 41 is arranged between the horizontal frame 1 and the transition plate 6. Through the injection and discharge of hydraulic oil, the vertical hydraulic cylinder 41 can generate linear motion, thereby pushing or moving the transition plate 6 to move up and down relative to the horizontal frame.

[0036] The power mechanism 42 and the pressure relief valve 43 are both connected to the vertical hydraulic cylinder 41, and the power mechanism 42 is used to provide power for the vertical hydraulic cylinder 41 to be lifted. The power mechanism 42 may include components such as a hydraulic pump to drive the hydraulic oil into the vertical hydraulic cylinder 41, so that its piston rises, thereby driving the transition plate 6 to rise. The pressure relief valve 43 is used to release pressure when the vertical hydraulic cylinder 41 is lowered. When the transition plate 6 needs to be lowered, the pressure relief valve 43 will open, allowing the hydraulic oil to flow back from the vertical hydraulic cylinder 41 to the hydraulic system, thereby reducing the pressure in the vertical hydraulic cylinder 41 and allowing the piston to descend smoothly.

[0037] In the above embodiment, the telescopic device 4 realizes precise control of the transition plate 6 in the vertical direction through the coordinated work of the vertical hydraulic cylinder 41, the power mechanism 42 and the pressure relief valve 43.

[0038] In a feasible embodiment of the present invention, the telescopic device 4 also includes a telescopic rod 44, the vertical hydraulic cylinder 41 is arranged on one side of the top of the horizontal frame 1, and the first end of the telescopic rod 44 is connected to the bottom side of the transition plate 6 away from the vertical hydraulic cylinder 41, and the second end of the telescopic rod 44 is connected to the top side of the horizontal frame 1 close to the vertical hydraulic cylinder 41. The telescopic rod 44 can provide additional support and guidance when the vertical hydraulic cylinder 41 is working. As an auxiliary support structure, the telescopic rod 44 can share part of the force generated by the vertical hydraulic cylinder 41 during the lifting process, thereby enhancing the stability of the entire telescopic device. This helps to prevent lateral deviation or distortion caused by the hydraulic cylinder acting alone. The existence of the telescopic rod 44 also ensures that the transition plate 6 can maintain relative parallelism with the horizontal frame 1 during the lifting process. When the vertical hydraulic cylinder 41 is working, the telescopic rod 44 can guide the transition plate 6 to rise or fall smoothly, reducing the shaking or vibration caused by the uneven operation of the hydraulic cylinder.

[0039] In a feasible embodiment of the present invention, the telescopic device 4 further includes a support seat 45, which is disposed on the horizontal frame 1 and is hinged to the telescopic rod 44. The telescopic rod 44 can be firmly connected between the horizontal frame 1 and the transition plate 6, thereby effectively transmitting and dispersing the force. The support seat 45 not only provides stable support for the telescopic rod 44, but also allows the telescopic rod 44 to have a certain degree of rotational freedom during the lifting process through its hinged design with the telescopic rod 44. This design helps to reduce stress concentration caused by uneven force and improve the durability and reliability of the telescopic device.

[0040] The support base 45 and the telescopic rod 44 are arranged in pairs. This further enhances the stability and load-bearing capacity of the telescopic device. The support base 45 and the telescopic rod 44 arranged in pairs can more effectively disperse the weight of the transition plate 6 and the electrical equipment, avoiding structural damage caused by excessive force on a single point.

[0041] See again Figure 1As shown, in a feasible embodiment of the present invention, the power mechanism 42 includes a foot pedal 421, a hollow column 423 and a spring 424. The foot pedal 421 is the main interface for the user to interact with the power mechanism. The user applies force by stepping on the foot pedal 421, thereby starting the workflow of the entire power mechanism. The foot pedal 421 is connected to the extrusion column 422. The extrusion column 422 serves as an intermediary for force transmission and converts the force on the foot pedal 421 into an extrusion effect on the hydraulic oil in the hollow column 423. The hollow column 423 is provided with hydraulic oil and is connected to the vertical hydraulic cylinder 41, so that the hollow column 423 becomes a channel for the transmission of hydraulic oil, and the pressure generated by the power mechanism is transmitted to the vertical hydraulic cylinder 41. The spring 424 is arranged in the hollow column 423, and the top of the spring 424 is connected to the extrusion column 422. The setting of spring 424 can not only serve as a buffer element to absorb the impact force generated when the user steps on it, thereby improving the durability and comfort of the power mechanism, but also, when the user releases the pedal 421, the spring 424 can release the stored energy and push the extrusion column 422 to return to its original position, thereby preparing for the next step.

[0042] like Figure 2 As shown, in a feasible embodiment of the present invention, a plurality of limiting holes 10 and limiting posts 11 are provided on the bearing plate 9, and the limiting posts 11 are provided in a one-to-one correspondence with the limiting holes 10, and the limiting posts 11 are used to limit the electrical device 100. The limiting holes 10 are key components on the bearing plate 9 for cooperating with the limiting posts 11. They provide a fixed position and an insertion channel for the limiting posts 11, thereby realizing the limiting function of the electrical device. The limiting posts 11 are components provided in a one-to-one correspondence with the limiting holes 10. They are inserted into the limiting holes 10 and contact with the corresponding parts of the electrical device 100 to realize the limiting and fixing of the electrical device.

[0043] See again Figure 1 As shown, in a feasible embodiment of the present invention, there are two slide bars 7, and the support device also includes four bases 12, and the two ends of each slide bar 7 are respectively connected to a base 12, and the two slide bars 7 can be arranged in parallel to enhance the stability and load-bearing capacity of the overall structure. A horizontal adjustment mechanism 13 is provided on each base 12. The height or horizontal position of the base 12 is adjusted according to actual needs to ensure that the support device can be stably placed on the ground and adapt to different terrains or installation environments. The horizontal adjustment mechanism 13 may include a spiral lifting device.

[0044] More specifically, the horizontal adjustment mechanism 13 includes a screw rod, which is rotatably set on the base 12. When the supporting plate 9 is not horizontal, the height of the base 12 can be fine-tuned by rotating the screw rod. Since the base 12 is connected to the slide rod 7, the slider 8 is slidably set on the slide rod 7, and the supporting plate 9 is connected to the slider 8, the height of the base 12 can be fine-tuned to achieve fine-tuning of the supporting plate 9.

[0045] In a feasible embodiment of the present invention, the telescopic device further comprises a base 46, and the vertical hydraulic cylinder is arranged on the top of the base 46. The base 46 is a key supporting structure of the telescopic device, which is responsible for bearing the weight of the vertical hydraulic cylinder 41 and all the connecting parts above it. Through its sturdy design, the base 46 can ensure the stability and safety of the entire telescopic device during the lifting process.

[0046] The use process of the electrical equipment tooling trolley provided by the present invention is as follows: (1) Push the trolley to the location where the equipment needs to be installed through the vertical frame 2, and step on the pressure relief valve 43 to lower the support device to the lowest position.

[0047] (2) Place the installation device on the load-bearing plate 9, secure the device firmly through the limit holes 10, push the trolley to the installation position, and step on the pedal 421 to raise the device to the installation height.

[0048] (3) Observe whether the level meter 5 is in a horizontal position. If it deviates from the horizontal center position, it is necessary to rotate the horizontal adjustment mechanism 13 to correct the horizontality.

[0049] (4) When the height and level are adjusted to meet the installation requirements, push and slide the support plate 9 to the installation position, remove the limit column 11 in the limit hole 10, place the installation device at the installation position, and then slide the support plate 9 back to the initial position.

[0050] (5) Step on the pressure relief valve 43 to lower the carrying plate 9 to a certain height.

[0051] If you are disassembling electrical equipment, the procedure is reversed.

[0052] The electrical equipment tooling trolley provided by the present invention solves the difficulty and risk of slipping during the installation of electrical equipment, and reduces the workload of safety inspections by supervisors during the equipment installation process. In addition, through the arrangement of the telescopic device 4 and the horizontal adjustment mechanism 13, the height and horizontality can be adjusted, the labor intensity is reduced, and the difficulty of installing electrical equipment on the construction site is greatly solved.

[0053] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrical equipment tooling trolley for installing electrical equipment (100), characterized in that: include: The vehicle body comprises a horizontal frame (1) and a vertical frame (2), wherein a brake universal wheel (3) is arranged at the bottom of the horizontal frame (1), and the vertical frame (2) is vertically arranged at the top of one end of the horizontal frame (1); A supporting device, slidably connected to the vertical frame (2), the supporting device being used to carry electrical equipment; A telescopic device (4), the bottom end of which is connected to the horizontal frame (1), and the top end of which is connected to the bottom of the supporting device; A level (5) is arranged on the supporting device, and the level (5) is used to detect the horizontality of the supporting device.

2. The electrical equipment tooling trolley according to claim 1, characterized in that: The supporting device comprises: A transition plate (6) is slidably connected to the vertical frame (2), and the bottom side of the transition plate (6) is connected to the telescopic device (4); A sliding rod (7) is arranged on the top of the transition plate (6), and the sliding rod (7) is perpendicular to the vertical frame (2); A sliding block (8) slidably connected to the sliding rod (7); A bearing plate (9) is connected to the slider (8), and the bearing plate (9) is used to bear the electrical device (100).

3. The electrical equipment tooling trolley according to claim 2, characterized in that: The telescopic device (4) comprises: A vertical hydraulic cylinder (41) is arranged between the horizontal frame (1) and the transition plate (6); The power mechanism (42) and the pressure relief valve (43) are both in communication with the vertical hydraulic cylinder (41), and the power mechanism (42) is used to provide power when the vertical hydraulic cylinder (41) is lifted, and the pressure relief valve (43) is used to relieve pressure when the vertical hydraulic cylinder (41) is lowered.

4. The electrical equipment tooling trolley according to claim 3, characterized in that: The telescopic device (4) further comprises a telescopic rod (44), the vertical hydraulic cylinder (41) being arranged on one side of the top of the horizontal frame (1), and a first end of the telescopic rod (44) being connected to a bottom side of the transition plate (6) away from the vertical hydraulic cylinder (41), and a second end of the telescopic rod (44) being connected to a top side of the horizontal frame (1) close to the vertical hydraulic cylinder (41).

5. The electrical equipment tooling trolley according to claim 4, characterized in that: The telescopic device (4) further comprises a support seat (45), wherein the support seat (45) is arranged on the horizontal frame (1), and the support seat (45) is hingedly connected to the telescopic rod (44); and the support seat (45) and the telescopic rod (44) are arranged in pairs.

6. The electrical equipment tooling trolley according to claim 3, characterized in that: The power mechanism (42) comprises: A foot pedal (421) connected to an extrusion column (422); A hollow column (423) containing hydraulic oil and connected to the vertical hydraulic cylinder (41); The spring (424) is disposed in the hollow column (423), and the top end of the spring (424) is connected to the extrusion column (422).

7. The electrical equipment tooling trolley according to claim 2, characterized in that: A plurality of limiting holes (10) and limiting columns (11) are provided on the bearing plate (9); the limiting columns (11) are provided in a one-to-one correspondence with the limiting holes (10), and the limiting columns (11) are used to limit the electrical equipment (100).

8. The electrical equipment tooling trolley according to claim 2, characterized in that: There are two sliding rods (7), and the supporting device further comprises four bases (12), and both ends of each sliding rod (7) are respectively connected to one of the bases (12), and each of the bases (12) is provided with a horizontal adjustment mechanism (13).

9. The electrical equipment tooling trolley according to claim 8, characterized in that: The horizontal adjustment mechanism (13) comprises a screw rod, which is rotatably arranged on the base (12).

10. The electrical equipment tooling trolley according to claim 3, characterized in that: The telescopic device also includes a base (46), and the vertical hydraulic cylinder is arranged on the top of the base (46).

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