Installation positioning tool
By designing an installation and positioning tool including rectangular base, guide rail, screw, handle, slider, lifting mechanism and limiting mechanism, the problem of cumbersome position confirmation during the installation of large-volume electrical box is solved, and the rapidity of the electrical box is achieved Positioning and height adjustment improves installation efficiency and tool versatility.
Patent Information
- Application Number
- CN202420513800.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-16
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-16
AI Technical Summary
When installing a large-volume electrical box, it is necessary to confirm that the position of the threaded holes under the electrical box are aligned with the threaded holes of the installation base many times, which leads to cumbersome and time-consuming installation process, affecting installation efficiency.
An installation and positioning tool is designed, including a rectangular base, guide rail, screw, handle, slider, lifting mechanism and limiting mechanism. Through the coordinated work of these components, rapid positioning and height adjustment of the electrical box is achieved.
Through this tool, the electrical box can be quickly positioned in the center above the rectangular base, simplifying the installation process, saving installation time, improving the installation efficiency of the electrical box, and improving the versatility and applicability of the rectangular base.
Smart Images

Figure CN222471433U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of installation and positioning tools for electrical boxes in transformer substations, and more specifically, particularly relates to an installation and positioning tool. Background Art
[0002] During the installation of the electrical box in the substation, the electrical box needs to be bolted to a preset mounting base. There are four sets of threaded holes on the top of the mounting base. After aligning the four sets of threaded holes at the bottom of the electrical box with the four sets of threaded holes above the mounting base, the electrical box is fixed to the top of the mounting base with bolts in turn.
[0003] The existing application number is: CN202021099756.3. The utility model discloses an installation and positioning tool for an electrical equipment mounting bracket, and relates to the technical field of electrical equipment. It includes a processing table, the front and back of the processing table are fixedly provided with a driving motor, the output shaft of the driving motor is fixedly provided with a screw, a nut seat is movably provided on the screw, the top of the nut seat is fixedly provided with a clamping plate through a connecting rod, and a support frame is fixedly provided on the top of the processing table, and a slide groove is provided on one side of the support frame. The installation and positioning tool for the electrical equipment mounting bracket is provided with a driving motor, a screw and a clamping plate. When the mounting bracket needs to be installed and positioned, the driving motor is used in conjunction with the nut seat and the clamping plate to drive the screw to rotate, and then drive the nut seat to move on the surface of the screw, so as to facilitate the adjustment of the position between the two nut seats, and then facilitate the adjustment of the position between the two clamping plates, so as to facilitate the clamping of mounting brackets of different specifications.
[0004] Based on the above, when installing the electrical box in the substation, the positions of the four groups of threaded holes below the electrical box need to be aligned with the four groups of threaded holes on the mounting base to complete the installation of the electrical box. When the electrical box is large, when installing the electrical box, the installation worker needs to walk around the electrical box and confirm the positions of the threaded holes below the electrical box multiple times to completely align the four groups of threaded holes below the electrical box with the four groups of threaded holes on the mounting base, which makes the installation process more cumbersome and time-consuming, affecting the installation efficiency of the electrical box. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides an installation positioning tool to solve the existing problem that when installing a large-volume electrical box, the installation worker needs to walk around the electrical box and confirm the position of the threaded holes below the electrical box multiple times in order to completely align the four groups of threaded holes below the electrical box and the four groups of threaded holes on the mounting base, which makes the installation process more cumbersome and time-consuming, and affects the installation efficiency of the electrical box.
[0006] The purpose and effect of the installation positioning tool of the utility model are achieved by the following specific technical means:
[0007] An installation and positioning tool comprises a rectangular base, a first guide rail, a first screw rod, a first turning handle, a first sliding block, a lifting base, a lifting side plate, a rack, a waterproof housing, a limiting mechanism and a lifting mechanism;
[0008] There are two groups of the first guide rails, and the two groups of the first guide rails are fixedly connected above the rectangular base;
[0009] The first screw is rotatably connected to the top of the rectangular base, and a thread is arranged on the outer periphery of the first screw, and the directions of the threads at two ends of the first screw are opposite;
[0010] The first handle is fixedly connected to the outer periphery of one end of the first screw rod;
[0011] There are four groups of first sliding blocks, and the four groups of first sliding blocks slide above the two groups of first guide rails respectively, and the four groups of first sliding blocks and the two groups of first guide rails play a guiding role;
[0012] There are two groups of lifting bases, and the two groups of lifting bases are respectively fixedly connected above the rectangular base;
[0013] There are two groups of lifting side panels, and the two groups of lifting side panels slide inside the two groups of lifting bases respectively;
[0014] There are two groups of racks, which are fixedly connected to the inside of the two groups of lifting side plates respectively;
[0015] The waterproof housing is fixedly connected to the side of a set of lifting bases;
[0016] The limiting mechanism is arranged above the rectangular base;
[0017] The lifting mechanism is arranged above the rectangular base.
[0018] Further, the lifting mechanism includes a third screw rod and a first transmission gear;
[0019] The third screw is rotatably connected inside the two sets of lifting bases;
[0020] There are two groups of the first transmission gears, which are respectively fixedly connected to the outer peripheries of the two ends of the third screw rod, and are respectively meshed with the two groups of racks.
[0021] Furthermore, the lifting mechanism also includes a second transmission gear and a transmission shaft;
[0022] The second transmission gear is fixedly connected to the outer periphery of one end of the third screw rod;
[0023] The transmission shaft is rotatably connected inside the waterproof housing.
[0024] Furthermore, the lifting mechanism also includes a third transmission gear, a ratchet and a pawl;
[0025] The third transmission gear is fixedly connected to the outer periphery of the transmission shaft, and the third transmission gear is meshed with the second transmission gear;
[0026] The ratchet is fixedly connected to the outer periphery of one end of the transmission shaft;
[0027] The pawl is hinged inside the waterproof housing, and the pawl is meshed with the ratchet wheel, so that the pawl and the ratchet wheel enable the third transmission gear to have a unidirectional rotation characteristic.
[0028] Furthermore, the lifting mechanism also includes an adjustable handle and a lifting plate;
[0029] The adjustable handle is fixedly connected to the outer periphery of the other end of the transmission shaft;
[0030] The lifting plate is fixedly connected above the two groups of lifting side plates.
[0031] Furthermore, the limiting mechanism includes a first sliding frame and a second guide rail;
[0032] There are two groups of the first sliding frames, the two groups of first sliding frames are respectively threadedly connected to the outer periphery of the first screw rod, the two groups of first sliding frames and the first screw rod respectively form a screw structure, and the two groups of first sliding frames are respectively fixedly connected to the top of the four groups of first sliding blocks;
[0033] There are two groups of the second guide rails, and the two groups of second guide rails are respectively fixedly connected above the two groups of first sliding frames.
[0034] Furthermore, the limiting mechanism also includes a second screw rod and a second sliding block;
[0035] There are two groups of second screw rods, which are rotatably connected to the top of the two groups of first sliding frames respectively. The outer circumferences of the two groups of second screw rods are provided with threads, and the threads at both ends of the two groups of second screw rods are in opposite directions.
[0036] There are four groups of the second sliding blocks, and the four groups of second sliding blocks slide above the two groups of second guide rails respectively. The four groups of second sliding blocks and the two groups of second guide rails play a guiding role.
[0037] Furthermore, the limiting mechanism also includes a first sliding frame, a second turning handle and a limiting angle frame;
[0038] There are four groups of the second sliding frames, which are respectively threadedly connected to the outer peripheries of the two groups of second screw rods, and are respectively fixedly connected to the tops of the four groups of second sliding blocks. The four groups of second sliding frames respectively form a screw structure with the two groups of second screw rods, and a group of threaded holes are provided inside the four groups of second sliding frames;
[0039] There are two sets of second handlebars, and the two sets of second handlebars are respectively fixedly connected to the outer periphery of one end of the two sets of second screw rods;
[0040] There are four groups of the limiting angle brackets, and the four groups of limiting angle brackets are respectively fixedly connected above the four groups of first sliding brackets.
[0041] Compared with the prior art, the utility model has the following beneficial effects:
[0042] The utility model arranges the pawl and the ratchet so that the third transmission gear can rotate unidirectionally, thereby ensuring the stability of the electrical box when it is placed above the lifting platform. When it is necessary to lower the electrical box, the pawl is pulled, and the electrical box will lower under its own weight. When the electrical box drops to a suitable position, the pulling of the pawl is stopped. At this time, the meshing of the pawl and the ratchet will limit the rotation of the third transmission gear, so that the position of the electrical box above the lifting platform is kept stable, thereby maintaining the height of the electrical box above the lifting platform.
[0043] The utility model is provided with a lifting mechanism. When the electrical box needs to be installed, when the adjustable handle is rotated, the transmission shaft, the third transmission gear, the second transmission gear, the third screw rod, two groups of first transmission gears, two groups of racks, two groups of lifting side plates and the lifting flat plate are used to make the electrical box rise and fall, so that the height of the electrical box during installation can be adjusted conveniently, making the installation of the electrical box more convenient.
[0044] The utility model is provided with a limit mechanism, and when the electrical box is placed above the lifting platform, the first handle is rotated through the transmission cooperation of the first screw rod, two groups of first sliding frames, two groups of second handle rods, two groups of second screw rods and four groups of second sliding frames, so that the four groups of limit angle frames are respectively close to the four sides of the electrical box, so that the position of the electrical box is positioned at the center above the rectangular base, and the electrical box is lowered by the lifting platform, so that the four sides of the electrical box fall respectively above the four groups of second sliding frames, and finally the electrical box and the four groups of second sliding frames are fixed together by bolts, so that the operation of quickly installing the electrical box is realized, and the operation of repeatedly adjusting the position of the large-volume electrical box is avoided when installing the large-volume electrical box, which simplifies the installation process and saves installation time. Moreover, through the position adjustment of the four groups of first sliding frames, electrical boxes of other sizes can also be quickly installed, thereby improving the versatility and applicability of the rectangular base.
[0045] The utility model has the advantages of conveniently adjusting the height of the electrical box during installation, which is more convenient for the installation of the electrical box, simplifies the installation process, saves installation time, improves the installation efficiency of the electrical box, improves the versatility and applicability of the rectangular base, and facilitates the rapid installation of electrical boxes of multiple sizes. BRIEF DESCRIPTION OF THE DRAWINGS
[0046] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0047] Figure 2 It is a schematic diagram of the rectangular base structure of the utility model.
[0048] Figure 3 It is a structural schematic diagram of the lifting mechanism of the utility model.
[0049] Figure 4 It is a schematic diagram of the lifting base structure of the utility model.
[0050] Figure 5 It is a schematic diagram of the structure of the limiting mechanism of the utility model.
[0051] Figure 6 It is a schematic diagram of the first sliding frame structure of the utility model.
[0052] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0053] 1. Rectangular base; 2. First guide rail; 3. First screw rod; 4. First handlebar; 5. First slider; 6. First sliding frame; 7. Second guide rail; 8. Second screw rod; 9. Second slider; 10. Second sliding frame; 11. Second handlebar; 12. Limit angle frame; 13. Lifting base; 14. Lifting side plate; 15. Lifting plate; 16. Rack; 17. Third screw rod; 18. First transmission gear; 19. Second transmission gear; 20. Third transmission gear; 21. Ratchet; 22. Paw; 23. Transmission shaft; 24. Adjustable handlebar; 25. Waterproof shell. DETAILED DESCRIPTION
[0054] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0055] Embodiment 1:
[0056] As attached Figure 1 To Attachment Figure 4 As shown:
[0057] The utility model provides an installation positioning tool, comprising a rectangular base 1, a first guide rail 2, a first screw rod 3, a first turning handle 4, a first slider 5, a lifting base 13, a lifting side plate 14, a rack 16, a waterproof shell 25 and a lifting mechanism;
[0058] There are two groups of first guide rails 2, and the two groups of first guide rails 2 are fixedly connected above the rectangular base 1;
[0059] The first screw rod 3 is rotatably connected to the top of the rectangular base 1, and the outer periphery of the first screw rod 3 is provided with threads;
[0060] The first turning handle 4 is fixedly connected to the outer periphery of one end of the first screw rod 3;
[0061] There are four groups of first slide blocks 5, and the four groups of first slide blocks 5 slide above the two groups of first guide rails 2 respectively. The four groups of first slide blocks 5 and the two groups of first guide rails 2 play a guiding role;
[0062] There are two sets of lifting bases 13, and the two sets of lifting bases 13 are respectively fixedly connected above the rectangular base 1;
[0063] There are two sets of lifting side panels 14, and the two sets of lifting side panels 14 slide inside the two sets of lifting bases 13 respectively;
[0064] There are two groups of racks 16, and the two groups of racks 16 are fixedly connected to the inside of the two groups of lifting side plates 14 respectively;
[0065] The waterproof housing 25 is fixedly connected to the side of a set of lifting bases 13;
[0066] The lifting mechanism is arranged above the rectangular base 1 .
[0067] Wherein, the lifting mechanism includes a third screw rod 17 and a first transmission gear 18;
[0068] The third screw rod 17 is rotatably connected to the inside of the two sets of lifting bases 13;
[0069] There are two groups of first transmission gears 18 . The two groups of first transmission gears 18 are respectively fixedly connected to the outer peripheries of two ends of the third screw rod 17 , and the two groups of first transmission gears 18 are respectively meshed with the two groups of racks 16 .
[0070] The lifting mechanism further includes a second transmission gear 19 and a transmission shaft 23;
[0071] The second transmission gear 19 is fixedly connected to the outer periphery of one end of the third screw rod 17;
[0072] The transmission shaft 23 is rotatably connected inside the waterproof housing 25 .
[0073] The lifting mechanism further includes a third transmission gear 20, a ratchet 21 and a pawl 22;
[0074] The third transmission gear 20 is fixedly connected to the outer periphery of the transmission shaft 23, and the third transmission gear 20 is meshed with the second transmission gear 19;
[0075] The ratchet 21 is fixedly connected to the outer periphery of one end of the transmission shaft 23;
[0076] The pawl 22 is hinged inside the waterproof housing 25 , and the pawl 22 is meshed with the ratchet 21 , so that the pawl 22 and the ratchet 21 enable the third transmission gear 20 to have a unidirectional rotation characteristic.
[0077] The lifting mechanism further includes an adjustable handle 24 and a lifting plate 15;
[0078] The adjustable handle 24 is fixedly connected to the outer periphery of the other end of the transmission shaft 23;
[0079] The lifting plate 15 is fixedly connected above the two sets of lifting side plates 14 .
[0080] The specific usage and function of the first embodiment are as follows:
[0081] In use, when the electrical box needs to be installed, the electrical box is placed above the lifting plate 15, and the adjustable handle 24 is turned. The adjustable handle 24 rotates through the transmission shaft 23 to drive the third transmission gear 20 to rotate, and the third transmission gear 20 rotates to drive the second transmission gear 19 to rotate, and the second transmission gear 19 rotates to drive the third screw 17 to rotate, and the third screw 17 rotates to drive the two sets of first transmission gears 18 to rotate, and the two sets of first transmission gears 18 rotate through the two sets of racks 16 to enable the lifting plate 15 above the two sets of lifting side plates 14 to achieve the operation of rising and falling, and the lifting plate 15 can make the electrical box produce when rising and falling. The third transmission gear 20 can be raised and lowered, and the pawl 22 and the ratchet 21 can make the third transmission gear 20 rotate unidirectionally, ensuring the stability of the electrical box when it is placed on the lifting platform 15. When the electrical box needs to be lowered, the pawl 22 can be pulled. At this time, the electrical box will drop under the action of gravity. When the electrical box drops to a suitable position, stop pulling the pawl 22. At this time, the engagement of the pawl 22 and the ratchet 21 can limit the rotation of the third transmission gear 20, so that the electrical box above the lifting platform 15 can maintain a stable position, which is convenient for adjusting the height of the electrical box during installation, more convenient for the installation of the electrical box, and improves the installation efficiency of the electrical box.
[0082] Embodiment 2:
[0083] Based on the first embodiment, Figures 1 to 6 As shown, it also includes a limiting mechanism, which is arranged above the rectangular base 1;
[0084] Wherein, the limiting mechanism includes a first sliding frame 6 and a second guide rail 7;
[0085] There are two groups of first sliding frames 6, which are respectively threadedly connected to the outer periphery of the first screw rod 3, and the two groups of first sliding frames 6 respectively form a screw structure with the first screw rod 3, and the two groups of first sliding frames 6 are respectively fixedly connected above the four groups of first sliding blocks 5;
[0086] There are two groups of second guide rails 7 , and the two groups of second guide rails 7 are fixedly connected above the two groups of first sliding frames 6 , respectively.
[0087] The limiting mechanism further includes a second screw rod 8 and a second slider 9;
[0088] There are two groups of second screw rods 8, and the two groups of second screw rods 8 are rotatably connected to the top of the two groups of first sliding frames 6 respectively;
[0089] There are four groups of second sliding blocks 9, and the four groups of second sliding blocks 9 slide above the two groups of second guide rails 7 respectively. The four groups of second sliding blocks 9 and the two groups of second guide rails 7 play a guiding role.
[0090] The limiting mechanism further includes a second sliding frame 10, a second turning handle 11 and a limiting angle frame 12;
[0091] There are four groups of second sliding frames 10, which are respectively threadedly connected to the outer peripheries of the two groups of second screw rods 8, and are respectively fixedly connected to the tops of the four groups of second sliding blocks 9. The four groups of second sliding frames 10 respectively form a screw structure with the two groups of second screw rods 8, and a group of threaded holes are provided inside the four groups of second sliding frames 10;
[0092] There are two sets of second turning handles 11, and the two sets of second turning handles 11 are respectively fixedly connected to the outer periphery of one end of the two sets of second screw rods 8;
[0093] There are four groups of limiting angle brackets 12 , and the four groups of limiting angle brackets 12 are fixedly connected above the four groups of second sliding brackets 10 , respectively.
[0094] The specific usage and function of the second embodiment are as follows:
[0095] When in use, when the electrical box is placed on the lifting platform 15, twist the first handle 4, the rotation of the first handle 4 drives the first screw 3 to rotate, the rotation of the first screw 3 causes the two groups of first sliding frames 6 to move inward synchronously, when the four groups of limiting angle frames 12 are respectively close to the two sides of the electrical box, stop twisting the first handle 4, at this time twist the two groups of second handles 11 respectively, the two groups of second handles 11 rotate to drive the two groups of second screws 8 to rotate, the two groups of second screws 8 rotate to cause the four groups of second sliding frames 10 to move inward synchronously, when the four groups of limiting angle frames 12 are respectively close to the other two sides of the electrical box, stop twisting the two groups of second handles 11, at this time the position of the electrical box has been positioned at the center above the rectangular base 1, and the two groups of first sliding frames 6 and the four groups of second sliding frames 10 all move inward synchronously, The position of the threaded holes will also be completely aligned with the threaded holes inside the four groups of second sliding frames 10, and then the electrical box is lowered by the lifting plate 15 so that the four sides of the electrical box fall respectively on the four groups of second sliding frames 10, and finally the electrical box is fixed to the four groups of second sliding frames 10 by bolts, thereby realizing the operation of quickly installing the electrical box and avoiding the need to adjust the position of the large-volume electrical box multiple times when installing a large-volume electrical box, simplifying the installation process, saving installation time, and improving the installation efficiency of the electrical box. In addition, when it is necessary to replace electrical boxes of other sizes in the future, electrical boxes of other sizes can be quickly installed by adjusting the position of the four groups of second sliding frames 10, thereby improving the versatility and applicability of the rectangular base 1 and facilitating the rapid installation of electrical boxes of multiple sizes.
Claims
1. An installation and positioning tool, comprising a rectangular base (1), a first guide rail (2), a first screw rod (3), a first handle (4), a first slider (5), a lifting base (13), a lifting side plate (14), a rack (16), a waterproof shell (25), a limit mechanism and a lifting mechanism; the first guide rail (2) has two groups, and the two groups of first guide rails (2) are fixedly installed above the rectangular base (1); the first screw rod (3) is rotatably installed above the rectangular base (1); the characteristics are: The first turning handle (4) is fixedly mounted on the outer periphery of one end of the first screw rod (3); there are four groups of the first sliding blocks (5), and the four groups of the first sliding blocks (5) slide respectively on the two groups of first guide rails (2); there are two groups of the lifting bases (13), and the two groups of lifting bases (13) are respectively fixedly connected on the top of the rectangular base (1); the limiting mechanism is arranged on the top of the rectangular base (1); the lifting mechanism is arranged on the top of the rectangular base (1); there are two groups of the lifting side panels (14), and the two groups of lifting side panels (14) slide respectively inside the two groups of lifting bases (13); there are two groups of the racks (16), and the two groups of racks (16) are respectively fixedly mounted inside the two groups of lifting side panels (14); the waterproof shell (25) is fixedly mounted on the side of one group of lifting bases (13).
2. An installation and positioning tool as claimed in claim 1, characterized in that: The lifting mechanism comprises a third screw rod (17) and a first transmission gear (18); the third screw rod (17) is rotatably mounted inside the two sets of lifting bases (13); there are two sets of the first transmission gear (18), the two sets of the first transmission gear (18) are respectively fixedly mounted on the outer periphery of both ends of the third screw rod (17), and the two sets of the first transmission gear (18) are respectively meshed with the two sets of racks (16).
3. An installation and positioning tool as claimed in claim 2, characterized in that: The lifting mechanism further comprises a second transmission gear (19) and a transmission shaft (23); the second transmission gear (19) is fixedly mounted on the outer periphery of one end of the third screw rod (17); and the transmission shaft (23) is rotatably mounted inside the waterproof housing (25).
4. A mounting and positioning tool as claimed in claim 2, characterized in that: The lifting mechanism further comprises a third transmission gear (20), a ratchet (21) and a ratchet pawl (22); the third transmission gear (20) is fixedly mounted on the outer periphery of the transmission shaft (23), and the third transmission gear (20) is meshed with the second transmission gear (19); the ratchet (21) is fixedly mounted on the outer periphery of one end of the transmission shaft (23); the ratchet pawl (22) is hinged inside the waterproof housing (25), and the ratchet pawl (22) is meshed with the ratchet (21).
5. The installation and positioning tool according to claim 2, characterized in that: The lifting mechanism further comprises an adjustable handle (24) and a lifting plate (15); the adjustable handle (24) is fixedly connected to the outer periphery of the other end of the transmission shaft (23); and the lifting plate (15) is fixedly connected above the two sets of lifting side plates (14).
6. The installation and positioning tool according to claim 1, characterized in that: The limiting mechanism comprises a first sliding frame (6) and a second guide rail (7); there are two groups of the first sliding frames (6), the two groups of the first sliding frames (6) are respectively threadedly mounted on the outer periphery of the first screw rod (3), and the two groups of the first sliding frames (6) are respectively fixedly mounted above the four groups of first sliding blocks (5); there are two groups of the second guide rail (7), and the two groups of the second guide rail (7) are respectively fixedly connected above the two groups of the first sliding frames (6).
7. An installation and positioning tool as claimed in claim 6, characterized in that: The limiting mechanism further comprises a second screw rod (8) and a second sliding block (9); there are two groups of the second screw rod (8), and the two groups of the second screw rod (8) are rotatably mounted above the two groups of first sliding frames (6); there are four groups of the second sliding blocks (9), and the four groups of the second sliding blocks (9) are slidably mounted above the two groups of second guide rails (7).
8. An installation and positioning tool as claimed in claim 6, characterized in that: The limiting mechanism further comprises a second sliding frame (10), a second turning handle (11) and a limiting angle frame (12); there are four groups of the second sliding frames (10), the four groups of the second sliding frames (10) are respectively threadedly mounted on the outer peripheries of the two groups of second screw rods (8), the four groups of the second sliding frames (10) are respectively fixedly mounted above the four groups of second sliding blocks (9), and a group of threaded holes are arranged inside the four groups of the second sliding frames (10); there are two groups of the second turning handle (11), the two groups of the second turning handle (11) are respectively fixedly mounted on the outer peripheries of one ends of the two groups of second screw rods (8); there are four groups of the limiting angle frames (12), the four groups of the limiting angle frames (12) are respectively fixedly mounted above the four groups of the second sliding frames (10).
Citation Information
Patent Citations
Installation positioning tool of electrical equipment installation support
CN212763014U