Prefabricated skid-mounted transformer substation

Abstract

The utility model relates to the technical field of power equipment, in particular to a preassembled skid-mounted transformer substation, which is provided with a base component, a cabinet body component, a cabinet top component and four fixing components with the same structure, the bottom surface of the cabinet body component is fixedly mounted on the top surface of the base component, and the top surface of the cabinet body component is fixedly connected with the bottom surface of the cabinet top component. Each fixing assembly is provided with two planes perpendicular to each other, the four fixing assemblies are fixed to the four corners of the cabinet body component respectively, the two planes of each fixing assembly coincide with the two sides of the corresponding corners of the cabinet body component respectively, and the top end of each fixing assembly is fixedly connected with the cabinet top component. The bottom ends of the cabinet body component are fixedly connected with one corner of the base component, so that the four corners of the cabinet body component are fixedly connected with the four corners of the base component through the four fixing assemblies correspondingly, longitudinal displacement and transverse displacement of the cabinet body component on the base component are limited, and the cabinet body component is prevented from shaking on the base component; and the stability of the preassembled skid-mounted transformer substation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, in particular to a prefabricated skid-mounted substation. Background Art

[0002] A substation refers to a place in the power system that transforms voltage and current, receives electric energy and distributes electric energy. It is mainly used to increase the voltage of the electric energy generated by a power plant so that it can be transmitted to a distance; and to reduce the voltage of high-voltage electricity near users according to the needs of users. A prefabricated substation is to improve the construction speed of the substation. The end substation of the distribution network is prefabricated and assembled in a factory, including a transformer, a controller of high-voltage switchgear, low-voltage switchgear and control equipment, internal wiring (cables, busbars, etc.), metering, compensation, lightning arresters, etc. It is a complete set of substation equipment composed of them, and has the characteristics of small volume, less land occupation, light weight, etc., and is widely used in residential areas and urban residential gathering areas.

[0003] However, the existing prefabricated substations are not easy to be stably installed during use, and are extremely vulnerable to impact and damage. At the same time, during the use of the substation, the environment inside the substation cannot be well dust-proofed and dried and dehumidified. Therefore, during the use of the substation, the internal power components are extremely vulnerable to the influence of dust or moisture, thus greatly reducing the service efficiency and service life of the prefabricated substation.

[0004] To solve the above technical problems, the technical solution announced in the Chinese utility model patent with the patent application number CN202222806514.9 is that the prefabricated substation includes a substation main body, an installation base, a substation cover plate, and a drying and dehumidifying machine. The substation main body is slidably connected to the installation base. The substation cover plate is fixedly inserted at the upper end of the substation main body. The drying and dehumidifying machine is fixedly installed on the side wall of the substation main body. There are clamping blocks arranged on the inner wall of the drying and dehumidifying machine, and the clamping blocks are fixedly connected to the inner wall of the drying and dehumidifying machine. A dehumidifying plate and a drying plate are also arranged in the drying and dehumidifying machine. The dehumidifying plate and the drying plate are clamped and fixed in the drying and dehumidifying machine through the clamping blocks. A circulation fan is arranged at the pipe orifice in the drying and dehumidifying machine, and the circulation fan is fixedly installed at the pipe orifice in the drying and dehumidifying machine, so that the prefabricated substation can have good dust-proof and moisture-proof performance during use. At the same time, it can also carry out air circulation and dry and dehumidify the air through the drying and dehumidifying machine, thereby effectively improving the protection of the prefabricated substation and extending the service life of the prefabricated substation. A T-shaped installation block is arranged at the lower end of the substation main body, and the T-shaped installation block is fixedly connected to the lower end of the substation main body. A fixing hole is opened on the T-shaped installation block. A T-shaped installation groove is arranged on the installation base, and fixing holes are opened on the side wall of the installation base and the inner wall of the T-shaped installation groove. The shape and specification of the T-shaped installation block are adapted to the T-shaped installation groove. The substation main body is slidably connected to the installation base through the cooperation of the T-shaped installation block and the T-shaped installation groove. A fastening bolt is also arranged on the installation base, and the shape and specification of the fastening bolt are adapted to the fixing hole. The fastening bolt is inserted into the fixing holes on the installation base and the T-shaped installation block to connect and fix the substation main body, so that the prefabricated substation can be conveniently installed and fixed during use, and the stability of the connection and installation of the prefabricated substation can be effectively improved.

[0005] However, there are the following technical problems in the above existing technology: In the above prefabricated substation, the substation main body and the installation base are connected through the T-shaped installation block at the bottom of the substation main body and the T-shaped installation groove on the installation base, and then the T-shaped installation block and the T-shaped installation groove are fixed through the fastening bolt, so as to fixedly connect the substation main body and the installation base. However, the fastening bolt can only limit the displacement of the substation main body along the length direction of the T-shaped installation groove. When wear occurs between the T-shaped installation block and the T-shaped installation groove, resulting in the displacement of the substation main body along the width direction of the T-shaped installation groove, the fastening bolt cannot limit the T-shaped installation block, thus causing the substation main body to shake and affecting the stability of the prefabricated substation. Utility Model Content

[0006] In view of this, it is necessary to provide a prefabricated skid-mounted substation that can longitudinally and laterally limit the cabinet components, thereby preventing the cabinet components from shaking on the base components and ensuring the stability of the prefabricated skid-mounted substation.

[0007] The utility model provides a prefabricated skid-mounted substation, which includes a base component, a cabinet component, a cabinet top component and four fixing components with the same structure. The bottom surface of the cabinet component is fixedly installed on the top surface of the base component, and the top surface is fixedly connected to the bottom surface of the cabinet top component. Each fixing component has two mutually perpendicular planes. The four fixing components are respectively fixed at the four corners of the cabinet component, and the two planes of each fixing component respectively coincide with the two sides of the corresponding corner of the cabinet component. The top end of each fixing component is fixedly connected to the cabinet top component, and the bottom end is fixedly connected to a corner of the base component, so as to longitudinally and laterally limit the cabinet component through each fixing component.

[0008] Preferably, the base component includes a base body. A plurality of first forklift slots are opened on the bottom surface of the base body for forklifting the base body. A first reinforcing member is provided in each first forklift slot and is closely attached to the slot body for enhancing the strength of the base body. A first slot is opened on the top surface of the base body for fixedly connecting with the bottom surface of the cabinet body. N first fixing holes are opened on both sides of each corner of the base body for fixedly connecting with the bottom end of the fixing component, where N≥1.

[0009] Preferably, the base component further includes a first lifting assembly. The first lifting assembly includes at least M first lifting holes and M first lifting bolts evenly opened on both sides of the base body. Threads are opened in each first lifting hole, and each first lifting bolt is threadedly connected to a first lifting hole, where M≥4.

[0010] Preferably, the cabinet component includes a cabinet body. A plurality of second forklift slots are opened on the bottom surface of the cabinet body for forklifting the cabinet body. A second reinforcing member is provided in each second forklift slot and is closely attached to the slot body for enhancing the strength of the cabinet body. A first protrusion is opened on the bottom surface of the cabinet body for fixedly connecting with the first slot. A second protrusion is opened on the top surface of the cabinet body for fixedly connecting with the cabinet top body. A plurality of third reinforcing members are further provided on the top surface of the cabinet body for enhancing the strength of the cabinet body.

[0011] Preferably, the cabinet component further includes a second lifting assembly. The second lifting assembly includes at least M second lifting holes and M second lifting bolts evenly opened on both sides of the cabinet body. Threads are opened in each second lifting hole, and each second lifting bolt is threadedly connected to a second lifting hole.

[0012] Preferably, at least one cabinet door is provided on each side of the cabinet body for inspection, repair and maintenance of the interior of the cabinet.

[0013] Preferably, the cabinet top member includes a cabinet top body. A second slot is formed in the bottom surface of the cabinet top body for fixedly connecting with a second protrusion. First fixing grooves are formed at the four corners of the cabinet top body for fixedly connecting with the top ends of the fixing components.

[0014] Preferably, the cabinet top member further includes a third hoisting component. The third hoisting component includes at least M third hoisting holes and M third hoisting bolts evenly formed on both sides of the cabinet top body. Threads are formed in each third hoisting hole, and each third hoisting bolt is threadedly connected with a third hoisting hole.

[0015] Preferably, each fixing component includes a fixing piece, two first fixing plates with the same structure and two second fixing plates with the same structure. The cross section of the fixing piece is in an "L" shape and is fixed on a corner of the cabinet body with the inner side of the "L" shape facing the cabinet body. The top end of the fixing piece is clamped with a first fixing groove. Second fixing grooves are formed at the bottom ends of each surface of the fixing piece, and N second fixing holes are evenly formed in each second fixing groove. N fixing bolts are evenly arranged on each first fixing plate, and N third fixing holes are evenly formed on each second fixing plate. A fixing nut is rotatably arranged on each third fixing hole. Each first fixing plate is installed in a second fixing groove with the thread facing inwards, and each second fixing plate is installed on the inner side of the base body with the fixing nut facing inwards. And each third fixing hole is arranged opposite to a first fixing hole. Each fixing bolt sequentially passes through the second fixing hole, the first fixing hole and the third fixing hole and is threadedly connected with a fixing nut to fixedly connect the bottom end of each fixing piece with the base body.

[0016] In the above-mentioned prefabricated skid-mounted substation, a base member, a cabinet member, a cabinet top member and four fixing components with the same structure are provided. The bottom surface of the cabinet member is fixedly installed on the top surface of the base member, and the top surface is fixedly connected with the bottom surface of the cabinet top member. Each fixing component has two mutually perpendicular planes. The four fixing components are respectively fixed at the four corners of the cabinet member. And the two planes of each fixing component respectively coincide with the two sides of the corresponding corner of the cabinet member. The top end of each fixing component is fixedly connected with the cabinet top member, and the bottom end is fixedly connected with a corner of the base member. In this way, the four corners of the cabinet member are respectively fixedly connected with the four corners of the base member through the four fixing components, so as to limit the longitudinal displacement and lateral displacement of the cabinet member on the base member, prevent the cabinet member from shaking on the base member, and ensure the stability of the prefabricated skid-mounted substation. Description of the Drawings

[0017] Figure 1 is an oblique overhead view of the prefabricated skid-mounted substation of the present application.

[0018] Figure 2 is an oblique overhead view of the base member of the present application.

[0019] Figure 3 is an oblique overhead view of the first lifting assembly of the present application.

[0020] Figure 4 is an oblique overhead view of the cabinet member of the present application.

[0021] Figure 5 is an oblique upward view of the cabinet member of the present application.

[0022] Figure 6 is an oblique overhead view of the cabinet top member of the present application.

[0023] Figure 7 is an oblique upward view of the cabinet top member of the present application.

[0024] Figure 8 is an oblique overhead view of the fixing assembly of the present application.

[0025] In the figure: prefabricated skid-mounted substation 10, base member 20, base body 21, first forklift slot 211, first slot 212, first fixing hole 213, first lifting assembly 22, first lifting hole 221, first lifting bolt 222, cabinet member 30, cabinet body 31, first protrusion 311, second protrusion 312, second forklift slot 313, third reinforcement member 314, cabinet door 315, second lifting assembly 32, cabinet top member 40, cabinet top body 41, second slot 411, first fixing slot 412, third lifting assembly 42, fixing assembly 50, fixing member 51, second fixing slot 511, second fixing hole 512, first fixing plate 52, fixing bolt 521, second fixing plate 53, fixing nut 531. Detailed implementation manners

[0026] The technical solutions and technical effects of the embodiments of the present invention will be further elaborated in detail below in conjunction with the drawings of the present invention.

[0027] Please refer to Figure 1, the present utility model provides a prefabricated skid-mounted substation 10, which includes a base member 20, a cabinet member 30, a cabinet top member 40 and four identical fixing components 50. The bottom surface of the cabinet member 30 is fixedly installed on the top surface of the base member 20, and the top surface is fixedly connected to the bottom surface of the cabinet top member 40. Each fixing component 50 has two mutually perpendicular planes. The four fixing components 50 are respectively fixed at the four corners of the cabinet member 30, and the two planes of each fixing component 50 respectively coincide with the two sides of the corresponding corner of the cabinet member 30. The top end of each fixing component 50 is fixedly connected to the cabinet top member 40, and the bottom end is fixedly connected to a corner of the base member 20, so as to longitudinally limit and laterally limit the cabinet member 30 through each fixing component 50. In this way, the four corners of the cabinet member 30 are respectively fixedly connected to the four corners of the base member 20 through the four fixing components 50, thereby limiting the longitudinal displacement and lateral displacement of the cabinet member 30 on the base member 20, preventing the cabinet member 30 from shaking on the base member 20, and ensuring the stability of the prefabricated skid-mounted substation 10.

[0028] Please refer to Figure 2 , further, the base member 20 includes a base body 21. A plurality of first forklift slots 211 are opened on the bottom surface of the base body 21 for forklifting the base body 21. A first reinforcing member closely attached to the slot body is provided in each first forklift slot 211 for enhancing the strength of the base body 21; a first slot 212 is opened on the top surface of the base body 21 for fixedly connecting with the bottom surface of the cabinet body 31; N first fixing holes 213 are opened on both sides of each corner of the base body 21 for fixedly connecting with the bottom end of the fixing component 50; where N≥1.

[0029] Please refer to Figure 3 , further, the base member 20 further includes a first lifting assembly 22. The first lifting assembly 22 includes at least M first lifting holes 221 uniformly opened on both sides of the base body 21 and M first lifting bolts 222. Threads are opened in each first lifting hole 221, and each first lifting bolt 222 is threadedly connected to a first lifting hole 221; where M≥4; in this way, when lifting the base body 21, pulling forces can be applied simultaneously from four positions, thereby ensuring the stability of the base body 21 during the lifting process.

[0030] Please refer to Figures 4 to 5, Further, the cabinet body member 30 includes a cabinet body 31. A plurality of second fork slots 313 are formed in the bottom surface of the cabinet body 31 for fork-lifting the cabinet body 31. A second reinforcing member is provided close to the slot body in each second fork slot 313 to enhance the strength of the cabinet body 31; a first protrusion 311 is formed in a circle on the bottom surface of the cabinet body 31 for fixedly connecting with the first slot 212, so as to fixedly connect the cabinet body 31 and the base body 21 in a clamping manner; a second protrusion 312 is formed in a circle on the top surface of the cabinet body 31 for fixedly connecting with the cabinet top body 41; a plurality of third reinforcing members 314 are further provided on the top surface of the cabinet body 31 to enhance the strength of the cabinet body 31.

[0031] Further, the cabinet body member 30 further includes a second lifting assembly 32. The second lifting assembly 32 includes at least M second lifting holes and M second lifting bolts evenly formed on both sides of the cabinet body 31. Threads are formed in each second lifting hole, and each second lifting bolt is threadedly connected with a second lifting hole.

[0032] In this embodiment, since the height of the cabinet body 31 is relatively high, in order to facilitate the lifting of the cabinet body 31, at least two second lifting holes can be evenly provided at the upper and lower ends on both sides of the cabinet body 31, and second lifting bolts are provided in each second lifting hole. Thus, when lifting the cabinet body 31, the second lifting bolts at the upper and lower ends of the cabinet body 31 can be respectively connected with a crane through steel wires, so as to be able to apply tensile forces to the cabinet body 31 simultaneously from four directions on the top surface and four directions on the bottom surface of the cabinet body 31 to ensure the stability of the cabinet body 31 during the lifting process.

[0033] In this embodiment, a cabinet door 315 is provided on each side of the cabinet body 31 to facilitate the inspection, repair and maintenance work of each electrical component inside the cabinet by the operator.

[0034] In this embodiment, the first reinforcing member, the second reinforcing member and the third reinforcing member 314 are all channel steels to ensure the normal use of the first fork slot 211 and the second fork slot 313 while strengthening the base body 21 and the cabinet body 31.

[0035] Please refer to Figure 6 , Further, the cabinet top member 40 includes a cabinet top body 41. A second slot 411 is formed in the bottom surface of the cabinet top body 41 for fixedly connecting with the second protrusion 312, so as to fixedly connect the cabinet top body 41 and the cabinet body 31 in a clamping manner; first fixing slots 412 are formed at the four corners of the cabinet top body 41 for fixedly connecting with the top end of the fixing assembly 50, so as to fixedly connect the top end of the fixing assembly 50 and the cabinet top body 41 in a clamping manner.

[0036] Further, the top cabinet member 40 further includes a third lifting assembly 42. The third lifting assembly 42 includes at least M third lifting holes evenly opened on both sides of the top cabinet body 41 and M third lifting bolts. Each third lifting hole is internally threaded, and each third lifting bolt is threadedly connected to a third lifting hole.

[0037] Please refer to Figure 1 、 Figure 4 、 Figure 5 and Figure 8 Further, each fixing assembly 50 includes a fixing member 51, two first fixing plates 52 with the same structure, and two second fixing plates 53 with the same structure. The cross-section of the fixing member 51 is in an "L" shape and is fixed at a corner of the cabinet body 31 with the inner side of the "L" shape facing the cabinet body 31. The top end of the fixing member 51 is snap-connected to a first fixing groove 412. A second fixing groove 511 is opened at the bottom end of each surface of the fixing member 51. N second fixing holes 512 are evenly opened in each second fixing groove 511. N fixing bolts 521 are evenly provided on each first fixing plate 52. N third fixing holes are evenly opened on each second fixing plate 53. A fixing nut 531 is rotatably provided on each third fixing hole. Each first fixing plate 52 is installed in a second fixing groove 511 with the thread facing inwards. Each second fixing plate 53 is installed on the inner side of the base body 21 with the fixing nut 531 facing inwards, so as to facilitate the operator to rotate the fixing nut 531. And each third fixing hole is arranged opposite to a first fixing hole 213. Each fixing bolt 521 sequentially passes through the second fixing hole 512, the first fixing hole 213, and the third fixing hole, and is threadedly connected to a fixing nut 531 to fixedly connect the bottom end of each fixing member 51 to the base body 21, thereby fixedly connecting the bottom end of the fixing member 51 to the base body 21.

[0038] In the present utility model, first, the bottom end of the cabinet body 31 is fixedly connected to the top end of the base body 21 by the engagement of the first slot 212 and the first protrusion 311, and then the connection between the cabinet body 31 and the base body 21 is strengthened by the fixing assembly 50. This connection method can effectively solve the problem of loosening at the connection between the cabinet body 31 and the base body 21 caused by the wear of the first slot 212 and the first protrusion 311, thereby making the connection between the cabinet body 31 and the base body 21 more firm and stable.

[0039] The installation of the prefabricated skid-mounted substation 10 has the following steps:

[0040] 1. Install the base member 20

[0041] There are the following two methods for installing the base member 20

[0042] 1.1 Insert a forklift into the first forklift slot 211, lift the base body 21 by the forklift and place it at the designated location to complete the installation of the base component 20;

[0043] 1.2 First, rotate each first lifting bolt 222 out of each first lifting hole 221 by a certain amount, then fixedly connect the steel wire rope to each first lifting bolt 222. After lifting the base body 21 to the designated location by a crane, untie the steel wire rope, and finally reset each first lifting bolt 222 to complete the installation of the base component 20;

[0044] 2. Install the cabinet component 30

[0045] There are the following two methods for installing the cabinet component 30

[0046] 2.1 First, insert a forklift into the second forklift slot 313, then lift the cabinet body 31 by the forklift and place it on the base body 21, and ensure that the first protrusion 311 is aligned with the first groove. Then, move the forklift out of the second slot 411 so that the first protrusion 311 is engaged with the first groove to complete the installation of the cabinet component 30;

[0047] 2.2 First, rotate each second lifting bolt out of each second lifting hole by a certain amount, then respectively connect the steel wire rope to each second lifting bolt. Lift the cabinet body 31 to the base body 21 by a crane, and then slowly lower the cabinet body 31. During this process, make the first protrusion 311 aligned with the first groove. After the first protrusion 311 is engaged with the first groove, untie the steel wire rope, and finally reset each second lifting bolt to complete the installation of the cabinet component 30.

[0048] 3. Install the fixing component 50

[0049] Align each fixing bolt 521 on each first fixing plate 52 with the second fixing hole 512, then insert each first fixing plate 52 into each second fixing groove 511. After aligning the third fixing hole on each second fixing plate 53 with each fixing bolt 521, install each second fixing plate 53 onto each fixing bolt 521 from the inside of the base body 21. Finally, rotate each fixing nut 531 so that the second fixing plate 53 clamps the first fixing plate 52 to complete the installation of the fixing component 50.

[0050] 4. Install the cabinet top component 40

[0051] First, turn out a part of each third lifting bolt from each third lifting hole, then fixedly connect the steel wire rope with each third lifting bolt. After hoisting the cabinet top body 41 above the cabinet body 31 by a crane, adjust the position of the cabinet top body 41 so that the second protrusion 312 faces the second groove, and the top ends of each first fixing groove 412 face each fixing member 51. Then slowly lower the cabinet top component 40. After the second protrusion 312 is clamped with the second groove and the top ends of each first fixing groove 412 are clamped with each fixing member 51, untie the steel wire rope. Finally, reset each third lifting bolt to complete the installation of the cabinet top component 40.

[0052] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated skid-mounted substation, characterized in that: It includes a base component, a cabinet component, a cabinet top component and four fixed components with the same structure. The bottom surface of the cabinet component is fixedly installed on the top surface of the base component, and the top surface is fixedly connected to the bottom surface of the cabinet top component. Each fixed component is provided with two mutually perpendicular planes. The four fixed components are respectively fixed to the four corners of the cabinet component, and the two planes of each fixed component coincide with the two sides of the corresponding cabinet component corner, respectively. The top end of each fixed component is fixedly connected to the cabinet top component, and the bottom end is fixedly connected to a corner of the base component, so that the cabinet component can be longitudinally and laterally limited by each fixed component.

2. The prefabricated skid-mounted substation according to claim 1, characterized in that: The base component includes a base body, and a plurality of first fork grooves are opened on the bottom surface of the base body for forking the base body, and each first fork groove is provided with a first reinforcement member close to the groove body for enhancing the strength of the base body; a circle of first slots are opened on the top surface of the base body for fixed connection with the bottom surface of the cabinet body; N first fixing holes are opened on both sides of each corner of the base body for fixed connection with the bottom end of the fixing component; wherein N≥1.

3. The prefabricated skid-mounted substation according to claim 2, characterized in that: The base structure also includes a first hanging assembly, which includes at least M first hanging holes and M first hanging bolts evenly opened on both sides of the base body, each first hanging hole has a thread, and each first hanging bolt is threadedly connected to a first hanging hole; wherein M≥4.

4. The prefabricated skid-mounted substation according to claim 2, characterized in that: The cabinet component includes a cabinet body, and a plurality of second fork grooves are formed on the bottom surface of the cabinet body for fork-transporting the cabinet body. A second reinforcing piece tightly attached to the groove body is provided in each second fork groove for enhancing the strength of the cabinet body; a circle of first protrusions is formed on the bottom surface of the cabinet body for fixed connection with the first slot; a circle of second protrusions is formed on the top surface of the cabinet body for fixed connection with the cabinet top body; a plurality of third reinforcing pieces are also provided on the top surface of the cabinet body for enhancing the strength of the cabinet body.

5. The prefabricated skid-mounted substation according to claim 4, characterized in that: The cabinet component also includes a second hanging assembly, which includes at least M second hanging holes and M second hanging bolts evenly opened on both sides of the cabinet body, each second hanging hole has a thread, and each second hanging bolt is threadedly connected to a second hanging hole.

6. The prefabricated skid-mounted substation according to claim 4, characterized in that: Each side of the cabinet body is provided with at least one cabinet door for inspecting and maintaining the interior of the cabinet.

7. The prefabricated skid-mounted substation according to claim 4, characterized in that: The cabinet top component includes a cabinet top body, a second slot is formed on the bottom surface of the cabinet top body for fixed connection with the second protrusion; first fixing slots are formed at the four corners of the cabinet top body for fixed connection with the top end of the fixing component.

8. The prefabricated skid-mounted substation according to claim 7, characterized in that: The cabinet top structure also includes a third hanging assembly, which includes at least M third hanging holes and M third hanging bolts evenly opened on both sides of the cabinet top body, each third hanging hole has a thread, and each third hanging bolt is threadedly connected to a third hanging hole.

9. The prefabricated skid-mounted substation according to claim 7, characterized in that: Each fixing assembly includes a fixing member, two first fixing plates with the same structure and two second fixing plates with the same structure. The cross-sections of the fixing members are all "L"-shaped, and are fixed to a corner of the cabinet body with the inner side of the "L" shape facing the cabinet body. The top of the fixing member is clamped with a first fixing groove, and the bottom end of each surface of the fixing member is provided with a second fixing groove, and each second fixing groove is evenly provided with N second fixing holes, each first fixing plate is evenly provided with N fixing bolts, and each second fixing plate is evenly provided with N third fixing holes, and each third fixing hole is rotatably provided with a fixing nut, each first fixing plate is installed in a second fixing groove with the thread facing inward, and each second fixing plate is installed on the inner side of the base body with the fixing nut facing inward, and each third fixing hole is arranged opposite to a first fixing hole, and each fixing bolt passes through the second fixing hole, the first fixing hole and the third fixing hole in sequence, and is threadedly connected with a fixing nut to fix the bottom end of each fixing member to the base body.

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