Sulfur hexafluoride load switch mounting structure

Abstract

The utility model relates to the field of electrical equipment, and particularly discloses a sulfur hexafluoride load switch mounting structure. The load switch mounting structure comprises a cabinet body, a mounting plate fixedly mounted in the cabinet body and a switch shell mounted on the inner side of the mounting plate, the switch shell comprises an upper shell and a lower shell, the mounting plate is provided with a mounting groove for mounting the lower shell, and the upper shell is fixedly mounted on the upper side of the lower shell. Limiting pieces used for limiting the lower shell are installed at the two ends of the installation plate, a positioning piece used for fixing the lower shell is installed at the other end of the installation plate, and a driving piece used for driving a main shaft on the inner side of the lower shell is fixedly installed on one side of the cabinet body. According to the invention, through the limiting member and the positioning member, rapid limiting and limiting releasing operation of the lower housing can be realized, so that an operator can mount and dismount the load switch more conveniently, and tedious operation of tightening or loosening bolts one by one can be avoided, thereby improving the mounting and dismounting efficiency of the load switch.

Description

Technical Field

[0001] This application relates to the field of electrical equipment, and in particular to a sulfur hexafluoride load switch mounting structure. Background Technology

[0002] A sulfur hexafluoride (SF6) load switch is a device that utilizes the insulating and arc-extinguishing properties of sulfur hexafluoride (SF6) gas to open and close circuits. It is suitable for use in industrial and mining enterprises, high-rise buildings, residential communities, and other locations to control and protect power lines and distribution transformers. The installation structure of the SF6 load switch is a crucial component in its design and application, encompassing the switch's fixing method, installation location, connection method, and compatibility with surrounding equipment.

[0003] In existing technologies, the housing of a sulfur hexafluoride load switch is usually fixed to a mounting plate in an electrical cabinet using multiple bolts. While this ensures that the switch will not loosen during operation, each bolt needs to be tightened or loosened individually during installation and disassembly, which reduces the installation efficiency of the switch. Furthermore, frequent bolt operations may cause problems such as bolt loosening and thread damage, affecting the reliability of the switch. Utility Model Content

[0004] To reduce the installation steps of load switches and improve their reliability, this application provides a sulfur hexafluoride load switch installation structure.

[0005] The sulfur hexafluoride load switch mounting structure provided in this application adopts the following technical solution:

[0006] A sulfur hexafluoride load switch mounting structure includes a cabinet, a mounting plate fixedly installed inside the cabinet, and a switch housing installed inside the mounting plate. The switch housing includes an upper housing and a lower housing. The mounting plate has a mounting groove for mounting the lower housing. The upper housing is fixedly installed on the upper side of the lower housing. Limiting members for restricting the lower housing are installed at both ends of the mounting plate. A positioning member for fixing the lower housing is installed at the other end of the mounting plate. A driving member for driving the main shaft inside the lower housing is fixedly installed on one side of the cabinet.

[0007] By adopting the above technical solution, and by setting a split structure of upper and lower housings, and using components such as mounting grooves, limiting parts, positioning parts, and driving parts for fixing and driving, the traditional bolt fixing method is changed. This structure not only ensures that the switch is stable and does not loosen during operation, but also avoids the tedious operation of tightening or loosening bolts one by one during installation and disassembly, thereby improving the installation efficiency of the switch, reducing problems such as bolt loosening and thread damage that may be caused by frequent bolt operations, and enhancing the reliability of the switch.

[0008] Optionally, the limiting component includes an insert plate, multiple electric push rods, and a limiting plate. The inner wall of the mounting plate is provided with a limiting groove for the sliding of the limiting plate. The limiting groove communicates with the side wall of the mounting groove. One side of the insert plate is fixedly connected to one side of the limiting plate. Both sides of the lower housing are provided with slots for inserting the insert plate. The multiple electric push rods are fixedly installed on the inner wall of the limiting groove, and one end of the piston rod is fixedly connected to one side of the limiting plate.

[0009] By adopting the above technical solution, the lower housing can be effectively restricted and fixed during installation through the limiting component; the insertion plate into the slot of the lower housing can prevent the lower housing from shifting horizontally in the mounting slot, ensuring its positional accuracy; the electric push rod can conveniently control the insertion and removal of the insertion plate, realizing quick limiting and releasing operations on the lower housing, further improving the efficiency of installation and disassembly.

[0010] Optionally, a first spring is sleeved on the outer side of the electric push rod, and the first spring is fixedly connected between the limiting plate and the inner wall of the limiting groove.

[0011] By adopting the above technical solution, when the electric push rod pushes the limiting plate and the insert plate to move, the first spring can buffer the impact force to a certain extent, protect the various components of the limiting part from damage, and improve the reliability and service life of the limiting part.

[0012] Optionally, the positioning element includes two insert rods and two second springs. One end of the mounting plate is provided with two sliding grooves for the two insert rods to slide, and the sliding grooves communicate with the side wall of the mounting groove. One side of the lower housing is provided with two first insertion holes for inserting one end of the insert rod. One end of the insert rod is fixedly connected to a fixing plate that is slidably connected to the inner wall of the sliding groove. The two second springs are respectively sleeved on the outside of the insert rods and are respectively fixedly connected between the fixing plate and the inner wall of the sliding groove.

[0013] By adopting the above technical solution, the stability of the lower housing on the mounting plate can be further enhanced; the insertion rod into the first insertion hole of the lower housing can restrict the movement of the lower housing from the side, and together with the limiting component, make the position of the lower housing in the mounting groove more secure. The second spring can provide buffering and reset functions for the insertion rod, ensuring that the insertion rod can be smoothly inserted into and pulled out of the first insertion hole, increasing the reliability and service life of the positioning component.

[0014] Optionally, an adjusting rod is fixedly connected to the upper end of the two fixing plates, and the mounting plate has a positioning groove for the lower end of the adjusting rod to slide, and one end of the positioning groove is connected to the sliding groove.

[0015] By adopting the above technical solution, the fixing plate and the insertion rod can be moved within the groove by moving the adjusting rod, thereby realizing the insertion and removal of the insertion rod. This allows operators to adjust the positioning components more conveniently, further improving the efficiency of installation and disassembly, and also making the operation of the entire installation structure more user-friendly.

[0016] Optionally, a positioning block is fixedly connected to the middle of the adjusting rod, a positioning pin is provided through the positioning block, and two positioning holes are provided on the upper side of the mounting plate for the lower end of the positioning pin to be inserted.

[0017] By adopting the above technical solution, the positioning block and positioning pin provide a fixing and positioning function for the position of the adjusting rod. When the adjusting rod moves to the appropriate position, the adjusting rod can be fixed in that position by inserting the positioning pin into the positioning hole on the mounting plate to prevent it from moving accidentally. This ensures that the positioning component remains stable during operation, further improving the reliability of the switch installation. It also facilitates the operator to quickly position and fix the adjusting rod during installation and disassembly.

[0018] Optionally, the lower housing has two second insertion holes on the side opposite to the first insertion hole, and the inner wall of the second insertion hole is connected to a positioning rod that is fixedly connected to the inner wall of the mounting groove.

[0019] By adopting the above technical solution, the positioning rod is inserted into the second socket, which can fix the lower housing from another direction, further enhancing the stability of the lower housing in the mounting groove and preventing it from shaking or shifting during operation. This multi-directional fixing method makes the installation of the lower housing more secure and reliable, and improves the stability of the entire switch installation structure.

[0020] Optionally, the mounting plate is provided with a fixing bracket on its lower side, which is fixedly connected to the inner wall of the cabinet. The fixing bracket is fixedly installed with a plurality of fuses connected to the stationary contacts on the lower side of the lower housing.

[0021] By adopting the above technical solution, the mounting bracket and fuse provide connection and protection functions for the lower stationary contact of the lower housing; the mounting bracket fixes the fuse to the inner wall of the cabinet, so that the fuse can be stably connected to the stationary contact of the lower housing. This not only ensures the normal electrical connection of the switch, but also allows the fuse to cut off the circuit in time when an abnormality occurs, protecting the switch and the entire electrical system from damage and improving the safety and reliability of the switch.

[0022] In summary, this application has the following beneficial effects:

[0023] 1. This application enables quick limiting and releasing of the lower housing through limiting and positioning components, allowing operators to install and disassemble the load switch more conveniently, avoiding the tedious operation of tightening or loosening bolts one by one, thereby improving the installation and disassembly efficiency of the load switch.

[0024] 2. This application can restrict the lower housing from different directions to ensure that its position in the mounting groove is more secure and to prevent shaking or displacement during operation. The first spring and the second spring can provide buffering and reset functions during the movement of the limiting member and the positioning member, respectively, to protect each component from damage and extend the service life of the structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the load switch installation structure according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the mounting plate and switch housing according to an embodiment of this application;

[0027] Figure 3 yes Figure 2 Cross-sectional view along line AA;

[0028] Figure 4 yes Figure 3 Enlarged view of region B in the middle;

[0029] Figure 5 This is a schematic diagram of the mounting plate and adjusting rod according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Cabinet; 2. Mounting plate; 21. Mounting groove; 22. Limiting groove; 23. Slide groove; 24. Positioning groove; 25. Positioning hole; 3. Switch housing; 31. Upper housing; 32. Lower housing; 33. Slot; 34. First insertion hole; 35. Second insertion hole; 4. Positioning rod; 5. Limiting component; 51. Insert plate; 52. Electric push rod; 53. Limiting plate; 54. First spring; 6. Positioning component; 61. Insert rod; 611. Fixing plate; 62. Second spring; 7. Adjusting rod; 71. Positioning block; 72. Positioning pin; 8. Driving component; 9. Fixing bracket; 10. Fuse. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a sulfur hexafluoride load switch mounting structure.

[0033] Reference Figure 1The load switch mounting structure includes a cabinet 1. Inside the cabinet 1, a mounting plate 2 is fixedly installed for mounting the switch housing 3. The mounting plate 2 secures the switch housing 3 inside the cabinet. The switch housing 3 consists of an upper housing 31 and a lower housing 32, both made of epoxy resin. Epoxy resin provides excellent insulation, high mechanical strength, good corrosion resistance, and waterproof and moisture-proof properties, and is also lightweight. A drive component 8 is fixedly installed on one side of the upper end of the cabinet 1 to drive the rotation of the main shaft inside the housing. The drive component 8 improves the ease of opening and closing the switch. A mounting bracket 9 is fixedly installed at the lower end of the cabinet 1. A fuse 10 is fixedly installed at one end of the mounting bracket 9. The fuse 10 cuts off the circuit promptly in case of abnormality, protecting the switch and the entire electrical system from damage and improving switch safety.

[0034] Reference Figure 2 , Figure 3 The mounting plate 2 has a mounting groove 21 for the lower housing 32 to be inserted. The upper edge of the upper housing 31 fits against the inner wall of the mounting groove 21 to ensure the flatness of the upper housing 31 during installation and prevent tilting or misalignment of the switch housing 3 during installation. Both ends of the mounting plate 2 have limiting grooves 22 that communicate with the side walls of the mounting groove 21. Two limiting members 5 are fixedly installed inside the limiting grooves 22 to restrict the two ends of the upper housing 31. The other end of the mounting plate 2 has two sliding grooves 23 that communicate with the mounting groove 21. Positioning members 6 for fixing the upper housing 31 are slidably installed inside the sliding grooves 23. The two limiting members 5 and the positioning members 6 can restrict the upper housing 31 in multiple directions, ensuring the stability of the connection between the upper housing 31 and the mounting plate 2 and preventing the switch housing 3 from shaking or misaligning when the switch is operated.

[0035] Reference Figure 3 , Figure 4The limiting component 5 includes an insert plate 51, a limiting plate 53, and multiple electric push rods 52. The electric push rods 52 are fixedly installed between the limiting plate 53 and the inner wall of the limiting groove 22. The piston rod of the electric push rod 52 is used to push the limiting plate 53 to slide within the inner wall of the limiting groove 22. The insert plate 51 is fixedly connected to one side of the limiting plate 53, and slots 33 for inserting the insert plate 51 are provided on both sides of the upper housing 31. The connection between the insert plate 51 and the inner wall of the slot 33 ensures the stability of the connection between the upper housing 31 and the inner wall of the mounting groove 21, preventing misalignment of the upper housing 31. Multiple first springs 54 are fixedly connected between the limiting plate 53 and the inner wall of the limiting groove 22. The multiple first springs 54 are respectively sleeved on the outer side of the multiple electric push rods 52 to protect the various components of the limiting component 5 from damage, improving the reliability and service life of the limiting component 5. In this application, the number of electric actuators 52 is set to three. In other embodiments, the number of electric actuators 52 may also be two, four, five, or more.

[0036] Reference Figure 3 , Figure 4 The positioning component 6 includes two insertion rods 61 and two second springs 62. The two insertion rods 61 are respectively inserted through the inner walls of the two sliding grooves 23. One end of each insertion rod 61 is fixedly connected to a fixing plate 611. The fixing plate 611 is used to prevent the insertion rod 61 from disengaging from the sliding groove 23 during sliding, ensuring the stability of the insertion rod 61. The two second springs 62 are respectively sleeved on the outer side of the two insertion rods 61, and their two ends are fixedly connected to one side of the fixing plate 611 and one side of the inner wall of the sliding groove 23, respectively. The second springs 62 are used to pull the fixing plate 611 so that one end of the insertion rod 61 can stably extend out of the sliding groove 23. Two first insertion holes 34 are opened on one side of the upper housing 31 for inserting one end of the insertion rod 61. The connection between the insertion rod 61 and the inner wall of the first insertion hole 34 is used to lock the upper housing 31. The upper housing 31 has two second insertion holes 35 at the end opposite to the first insertion hole 34. The inner walls of the two second insertion holes 35 are fitted with positioning rods 4 that are fixedly connected to one side of the mounting groove 21. The positioning rods 4 are used to prevent the end of the upper housing 31 opposite to the positioning member 6 from tilting or misaligning.

[0037] Reference Figure 4 , Figure 5Two positioning grooves 24, each communicating with a slide groove 23, are provided on one side of the mounting plate 2. Adjusting rods 7 are slidably connected to the inner walls of the two positioning grooves 24. The lower ends of the adjusting rods 7 are fixedly connected to the upper sides of two fixing pieces 611. Pushing the upper end of the adjusting rods 7 causes the fixing pieces 611 and the insertion rod 61 to slide along the inner wall of the slide groove 23. A positioning block 71 is fixedly connected to the middle of the upper end of the adjusting rod 7, and a positioning pin 72 passes through the middle of the positioning block 71 to ensure the stability of the positioning pin 72. A positioning hole 25 is provided at the upper end of the mounting plate 2 for the lower end of the positioning pin 72 to be inserted. When the adjusting rod 7 is pushed to cause the insertion rod 61 to slide along the slide groove 23 until one end of the insertion rod 61 is inserted into the first insertion hole 34, the positioning pin 72 is inserted into the positioning hole 25 and into the inner wall of one of the positioning holes 25, thus locking the positioning component 6. When the adjusting rod 7 is pushed, the insertion rod 61 slides in the slide groove 23 until one end of the insertion rod 61 disengages from the first insertion hole 34 and retracts into the slide groove 23, the positioning pin 72 is inserted into the positioning hole 25 and then into the inner wall of another positioning hole 25, thus locking the positioning part 6 again and preventing it from affecting the installation of the upper housing 31.

[0038] The implementation principle of the sulfur hexafluoride load switch installation structure in this application embodiment is as follows: When installing the switch housing 3, firstly, open the cabinet door of the cabinet 1 and place the switch housing 3 in the mounting groove 21 of the mounting plate 2 until the edge of the upper housing 31 is connected to the inner wall of the mounting groove 21; secondly, push the switch housing 3 until the two second insertion holes 35 on one side of the upper housing 31 are inserted into the outside of the positioning rod 4, and then press down the other end of the switch housing 3 until the edge of the upper housing 31 is completely in contact with the inner wall of the mounting groove 21; thirdly, pull out the positioning pin 72, push the adjusting rod 7, and with the help of the contraction force of the second spring 62, drive the fixing plate 611 and the insertion rod 61 in the sliding groove 23. The wall slides until one end of the insertion rod 61 is inserted into the first insertion hole 34. At this time, the positioning pin 72 is inserted into the hole of the positioning hole 25 and into the inner wall of the other positioning hole 25 to complete the locking of the positioning rod 4. In the fourth step, multiple electric push rods 52 are activated at the same time to push the limiting plate 53 to slide on the inner wall of the limiting groove 22 until the two insertion plates 51 are respectively inserted into the inner walls of the two slots 33 to complete the locking of the upper housing 31. In the fifth step, the driving component 8 is fixedly connected to the end of the main shaft protruding from the lower housing 32 to facilitate the rotation of the main shaft. In the final step, multiple fuses 10 on the fixing bracket 9 are respectively connected to the stationary contact at the lower end of the lower housing 32 to complete the installation of the switch housing 3.

[0039] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sulfur hexafluoride load switch mounting structure, comprising a cabinet (1), a mounting plate (2) fixedly installed inside the cabinet (1), and a switch housing (3) installed inside the mounting plate (2), characterized in that: The switch housing (3) includes an upper housing (31) and a lower housing (32). The mounting plate (2) has a mounting groove (21) for mounting the lower housing (32). The upper housing (31) is fixedly mounted on the upper side of the lower housing (32). Both ends of the mounting plate (2) are equipped with limiting members (5) for limiting the lower housing (32). The other end of the mounting plate (2) is equipped with a positioning member (6) for fixing the lower housing (32). A driving member (8) for driving the inner spindle of the lower housing (32) is fixedly mounted on one side of the cabinet (1).

2. The sulfur hexafluoride load switch mounting structure according to claim 1, characterized in that: The limiting component (5) includes a insert plate (51), multiple electric push rods (52) and a limiting plate (53). The inner wall of the mounting plate (2) is provided with a limiting groove (22) for sliding of the limiting plate (53). The limiting groove (22) is connected to the side wall of the mounting groove (21). One side of the insert plate (51) is fixedly connected to one side of the limiting plate (53). Both sides of the lower housing (32) are provided with slots (33) for inserting the insert plate (51). Multiple electric push rods (52) are fixedly installed on the inner wall of the limiting groove (22) and one end of the piston rod is fixedly connected to one side of the limiting plate (53).

3. The sulfur hexafluoride load switch installation structure according to claim 2, characterized in that: The electric push rod (52) is fitted with a first spring (54) on its outer side, and the first spring (54) is fixedly connected between the limiting plate (53) and the inner wall of the limiting groove (22).

4. The sulfur hexafluoride load switch mounting structure according to claim 1, characterized in that: The positioning component (6) includes two insert rods (61) and two second springs (62). One end of the mounting plate (2) is provided with two sliding grooves (23) for the two insert rods (61) to slide, and the sliding grooves (23) are connected to the side wall of the mounting groove (21). One side of the lower housing (32) is provided with two first insertion holes (34) for the insertion of one end of the insert rod (61). One end of the insert rod (61) is fixedly connected to a fixing piece (611) that is slidably connected to the inner wall of the sliding groove (23). The two second springs (62) are respectively sleeved on the outside of the insert rod (61) and are respectively fixedly connected between the fixing piece (611) and the inner wall of the sliding groove (23).

5. The sulfur hexafluoride load switch mounting structure according to claim 4, characterized in that: The upper ends of the two fixing plates (611) are fixedly connected to the adjusting rod (7), and the mounting plate (2) is provided with a positioning groove (24) for the lower end of the adjusting rod (7) to slide, and the positioning groove (24) is connected to one end of the sliding groove (23).

6. The sulfur hexafluoride load switch mounting structure according to claim 5, characterized in that: The middle part of the adjusting rod (7) is fixedly connected to the positioning block (71), the positioning block (71) is provided with a positioning pin (72), and the upper side of the mounting plate (2) has two positioning holes (25) for the lower end of the positioning pin (72) to be inserted.

7. The sulfur hexafluoride load switch mounting structure according to claim 4, characterized in that: The lower housing (32) has two second insertion holes (35) on the side opposite to the first insertion hole (34). The inner wall of the second insertion hole (35) is connected to a positioning rod (4) that is fixedly connected to the inner wall of the mounting groove (21).

8. The sulfur hexafluoride load switch mounting structure according to claim 1, characterized in that: The mounting plate (2) is provided with a fixing bracket (9) fixedly connected to the inner wall of the cabinet (1) on the lower side. The fixing bracket (9) is fixedly installed with a plurality of fuses (10) connected to the static contacts on the lower side of the lower shell (32).

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