A low-voltage switch device with leakage protection

Abstract

The present invention relates to the technical field of low-voltage switches, and in particular to a low-voltage switch device that prevents leakage of electricity, comprising a switch body, wherein the upper surface of the switch body is provided with two wiring ports, and two annular blocks are arranged above the switch body, and the bottom of each annular block is fixedly connected to two support rods, and each support rod is fixedly connected to the switch body; each annular block is provided with a plurality of sealed cavities, and each sealed cavity is provided with a sliding assembly, and the sliding assembly includes a sealing strip that is slidably installed inside the sealed cavity, and the cross-section of the sealing strip is T-shaped, and the sealing strip passes through one end of the annular block and is fixedly connected to a splint. Under the joint clamping action of multiple splints, the present invention can effectively prevent the loosening of wires, has a good fixing and fastening effect on the wires, and can thus prevent leakage of electricity, which is beneficial to the use of low-voltage switches.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage switches, and in particular to a low-voltage switch device capable of preventing electric leakage. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to low-voltage switches is also constantly improving. Low-voltage electric switches are a kind of power protection device, which can be divided into three categories: automotive low-voltage protection switches, pressure-controlled low-voltage switches and power equipment low-voltage switch electrical appliances. The low-voltage switch device will automatically turn off the power supply when the voltage is lower than a certain value, thereby achieving the purpose of protecting electrical equipment.

[0003] Currently, when installing a low-voltage switch, one end of the wire is inserted into the wiring port and the wire is fastened with a fastening screw. Since the screw is prone to loosening, the wire connection becomes loose, which in turn causes leakage, which is not conducive to the use of the low-voltage switch. Summary of the Invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. At present, when installing a low-voltage switch, one end of the wire is inserted into the wiring port and the wire is fastened with a fastening screw. Since the screw is easy to loosen, the wire connection becomes loose, which in turn causes leakage, which is not conducive to the use of the low-voltage switch. A low-voltage switch device with leakage protection is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A low-voltage switch device for preventing leakage, comprising a switch body, wherein the upper surface of the switch body is provided with two wiring ports, and two annular blocks are provided above the switch body, and the bottom of each annular block is fixedly connected to two support rods, and each support rod is fixedly connected to the switch body;

[0007] Each of the annular blocks is provided with a plurality of sealing cavities, each of which is provided with a sliding assembly, the sliding assembly comprising a sealing strip slidably mounted inside the sealing cavity, the cross section of the sealing strip being T-shaped, and one end of the sealing strip passing through the annular block being fixedly connected to a clamping plate;

[0008] Two groups of inflatable components are provided on the upper surface of the switch body, each group of inflatable components includes multiple airbags, multiple fixing plates are fixedly connected to the upper surface of the switch body, and the multiple airbags are respectively fixedly connected to the multiple fixing plates. Each airbag is connected to the corresponding sealed cavity through a hose. Two annular grooves are provided on the switch body, and multiple sliding rods are slidably connected in each of the annular grooves. The multiple sliding rods are connected through an annular plate, and the bottom of each annular plate is fixedly connected to multiple extrusion plates.

[0009] Preferably, each sealing strip is sleeved with a first spring, one end of the first spring is fixedly connected to the sealing strip, and the other end of the first spring is fixedly connected to the inner wall of the sealing cavity.

[0010] Preferably, each of the annular plates is fixedly connected to a handle, and an insertion rod with an L-shaped cross section is slidably connected to the handle, and a plurality of slots for connecting the insertion rod are provided on the upper surface of the switch body.

[0011] Preferably, each of the insertion rods is sleeved with a second spring, one end of the second spring is fixedly connected to the insertion rod, and the other end of the second spring is fixedly connected to the handle.

[0012] Preferably, each of the handles is rotatably connected to a rotating block, the cross-section of the rotating block is cross-shaped, a torsion spring is sleeved on the rotating block, one end of the torsion spring is fixedly connected to the rotating block, and the other end of the torsion spring is fixedly connected to the handle.

[0013] Preferably, a mounting block is fixedly connected to the back of the switch body, an opening is formed on the mounting block, and two symmetrically arranged clamping blocks are slidably mounted in the opening.

[0014] Preferably, a rectangular rod is slidably connected to the mounting block, a sliding groove is provided on the inner wall of one side of the mounting block, two rectangular blocks are slidably connected in the sliding groove, the two rectangular blocks are fixedly connected to the two card blocks respectively, and each of the rectangular blocks is hinged with a hinged rod, and the hinged rod is hinged to the rectangular rod.

[0015] Preferably, a cavity is provided in the rectangular rod, a moving block is slidably connected inside the cavity, a limiting opening with a right-angled triangle cross-section is provided on the moving block, a limiting rod is slidably connected to the rectangular rod, one end of the limiting rod is fitted with the inclined surface of the limiting opening, and two circular grooves are provided on the inner wall of one side of the mounting block.

[0016] Preferably, a third spring is sleeved on the limiting rod, one end of the third spring is fixedly connected to the limiting rod, and the other end of the third spring is fixedly connected to the rectangular rod.

[0017] Preferably, a pull rod with a T-shaped cross section is fixedly connected to one side surface of the moving block, and the pull rod is slidably connected to the rectangular rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Hold the handle and the rotating block and rotate them together. When the multiple extrusion plates rotate, they will squeeze each airbag respectively. After the airbag is squeezed, the gas inside it will enter the corresponding sealed cavity through the hose. The sealing strip slides inside the sealed cavity, and each splint moves toward the middle of the annular block until each splint is tightly attached to the side surfaces of the wire. The surface of each splint in contact with the wire is made of rubber. Under the joint clamping action of multiple splints, the wire can be effectively prevented from loosening, and the fixing and fastening effect of the wire is better, thereby preventing leakage and facilitating the use of low-voltage switches.

[0020] 2. Pull the pull rod to move it toward the direction close to the rectangular rod until the surface of the moving block is in close contact with the inner wall of one side of the cavity. At this time, under the elastic force of the third spring, one end of the limit rod will be separated from the circular groove. Then pull the rectangular rod to make it slide relative to the mounting block, and the angle between the two hinged rods will increase. The distance between the two rectangular blocks and the card block will also increase. After the two card blocks move, they will be separated from the installation position, thereby realizing the disassembly of the switch body. The installation and disassembly efficiency of the switch body is high, the operation saves time and effort, and is conducive to the use of the switch body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front structural schematic diagram of a leakage-proof low-voltage switchgear proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the back structure of a low-voltage switchgear for preventing leakage proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the top view of a low-voltage switchgear for preventing leakage proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the side internal structure of the mounting block of the present invention;

[0025] Figure 5 It is a schematic diagram of the partial structure of the handle and the rotating block in the present invention from a top view;

[0026] Figure 6 Schematic diagram of the side structure of the annular plate and the annular block in the present invention;

[0027] Figure 7 Schematic diagram of the partial internal structure of the mounting block and rectangular rod in the present invention from a top view;

[0028] Figure 8 This is a schematic diagram of the internal structure of the annular block in the present invention from a top view.

[0029] In the figure: 1 switch body, 2 annular block, 3 airbag, 4 annular plate, 5 fixed plate, 6 plug rod, 7 mounting block, 8 pull rod, 9 rectangular rod, 10 card block, 11 clamping plate, 12 wiring port, 13 handle, 14 hinged rod, 15 rectangular block, 16 slide groove, 17 sealing cavity, 18 limit opening, 19 first spring, 20 rotating block, 21 extrusion plate, 22 slide rod, 23 sealing strip, 24 moving block, 25 limit rod, 26 circular groove, 27 third spring, 28 hose, 29 second spring, 30 support rod, 31 torsion spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figures 1-8 A low-voltage switch device for preventing leakage of electricity includes a switch body 1, the upper surface of the switch body 1 is provided with two wiring ports 12, two annular blocks 2 are arranged above the switch body 1, the bottom of each annular block 2 is fixedly connected to two support rods 30, each support rod 30 is fixedly connected to the switch body 1, and each annular block 2 is provided with a plurality of sealed cavities 17, each sealed cavity 17 is provided with a sliding assembly, the sliding assembly includes a sealing strip 23 slidably installed inside the sealed cavity 17, the cross section of the sealing strip 23 is T-shaped, and the sealing strip 23 passes through one end of the annular block 2 and is fixedly connected to a clamping plate 11.

[0032] Two groups of inflatable components are provided on the upper surface of the switch body 1, each group of inflatable components includes multiple airbags 3, and multiple fixing plates 5 are fixedly connected to the upper surface of the switch body 1. The multiple airbags 3 are respectively fixedly connected to the multiple fixing plates 5. Each airbag 3 is connected to the corresponding sealed cavity 17 through a hose 28. Two annular grooves are provided on the switch body 1, and multiple sliding rods 22 are slidably connected in each annular groove. The multiple sliding rods 22 are connected through an annular plate 4, and the bottom of each annular plate 4 is fixedly connected to multiple extrusion plates 21. Each sealing strip 23 is sleeved with a first spring 19, one end of the first spring 19 is fixedly connected to the sealing strip 23, and the other end of the first spring 19 is fixedly connected to the inner wall of the sealed cavity 17. After the gas enters the sealed cavity 17, it will push the sealing strip 23 to slide inside the sealed cavity 17, and the first spring 19 will be deformed.

[0033] Each annular plate 4 is fixedly connected to a handle 13, and a plunger 6 with an L-shaped cross section is slidably connected to the handle 13. A plurality of slots for connecting the plunger 6 are provided on the upper surface of the switch body 1. A second spring 29 is sleeved on each plunger 6, one end of the second spring 29 is fixedly connected to the plunger 6, and the other end of the second spring 29 is fixedly connected to the handle 13. Each handle 13 is rotatably connected to a rotating block 20, and the cross section of the rotating block 20 is cross-shaped. A torsion spring 31 is sleeved on the rotating block 20, and one end of the torsion spring 31 is fixedly connected to the rotating block 20. The other end of the rotating spring 31 is fixedly connected to the handle 13, and one end of the rotating block 20 is pressed to rotate the rotating block 20 downward away from one end of the insertion rod 6. At the same time, the rotating block 20 rotates relative to the handle 13, and the torsion spring 31 is deformed. During the process of the rotating block 20 rotating upward close to one end of the insertion rod 6, it will gradually fit with the surface of the L-shaped insertion rod 6. As the rotating block 20 continues to rotate, one end of the rotating block 20 will rotate against the surface of the insertion rod 6, thereby causing the insertion rod 6 to move vertically upward, and the second spring 29 will be deformed. After the insertion rod 6 moves, its lower end will be disengaged from the slot.

[0034] A mounting block 7 is fixedly connected to the back of the switch body 1. The mounting block 7 is provided with an opening, and two symmetrically arranged card blocks 10 are slidably installed in the opening. A rectangular rod 9 is slidably connected to the mounting block 7, and a slide groove 16 is provided on the inner wall of one side of the mounting block 7. Two rectangular blocks 15 are slidably connected in the slide groove 16. The two rectangular blocks 15 are respectively fixedly connected to the two card blocks 10. A hinged rod 14 is hinged on each rectangular block 15, and the hinged rod 14 is hinged to the rectangular rod 9. A cavity is provided in the rectangular rod 9, and a moving block 24 is slidably connected inside the cavity. A limit opening 18 with a right-angled triangle cross section is provided on the moving block 24. A limit rod 25 is slidably connected to the rectangular rod 9, and one end of the limit rod 25 fits into the inclined surface of the limit opening 18.

[0035] Two circular grooves 26 are provided on the inner wall of one side of the mounting block 7, a third spring 27 is sleeved on the limit rod 25, one end of the third spring 27 is fixedly connected to the limit rod 25, and the other end of the third spring 27 is fixedly connected to the rectangular rod 9. A pull rod 8 with a T-shaped cross section is fixedly connected to the surface of one side of the moving block 24. The pull rod 8 and the rectangular rod 9 are slidably connected. When the pull rod 8 is pulled to move toward the direction close to the rectangular rod 9, the moving block 24 will slide inside the cavity, and the limit opening 18 will slide relative to the limit rod 25 during the movement until the moving block 24 is moved. The surface of the movable block 24 is in close contact with the inner wall of one side of the cavity. At this time, under the elastic force of the third spring 27, the limit rod 25 will shrink to the inside of the cavity, and the end face of the limit rod 25 will always be in contact with the inclined surface of the limit opening 18. One end of the limit rod 25 will be disengaged from the circular groove 26, and then the rectangular rod 9 will be pulled to slide relative to the mounting block 7. The inclination angles of the two hinged rods 14 will change at the same time, and the angle between the two hinged rods 14 will increase. The two rectangular blocks 15 will slide along the slide groove 16, and the distance between the two card blocks 10 will increase at the same time.

[0036] In the present invention, after inserting one end of the wire (not shown) into the corresponding wiring port 12, press one end of the rotating block 20 to rotate the rotating block 20 downward away from the end of the insertion rod 6. At the same time, the rotating block 20 rotates relative to the handle 13, and the torsion spring 31 is deformed. During the process of the rotating block 20 rotating upward close to the end of the insertion rod 6, it will gradually fit the surface of the L-shaped insertion rod 6. As the rotating block 20 continues to rotate, one end of the rotating block 20 will rotate against the surface of the insertion rod 6, thereby causing the insertion rod 6 to move vertically upward. The second spring 29 is deformed, and after the insertion rod 6 moves, its lower end will disengage from the slot. Then, hold the handle 13 and the rotating block 20 so that the handle 13 and the rotating block 20 rotate together, and the annular plate 4 will rotate together with the handle 13. Since the upper ends of the sliding rods 22 are fixedly connected to the lower surface of the annular plate 4, the multiple sliding rods 22 will slide along the annular groove. During the rotation of the multiple extrusion plates 21, each airbag 3 will be squeezed respectively.

[0037] Only one side surface of each airbag 3 is fixedly connected to the fixing plate 5, and one end of each hose 28 is fixedly connected to the airbag 3, and the other end is fixedly connected to the annular block 2, and is communicated with the corresponding sealing cavity 17. After the airbag 3 is squeezed, the gas inside it will enter the corresponding sealing cavity 17 through the hose 28. Since the sealing performance of each sealing strip 23 is good when connected to the inner wall of the sealing cavity 17, after the gas enters the sealing cavity 17, it will push the sealing strip 23 to slide inside the sealing cavity 17, and the first spring 19 will be deformed. During the process of multiple splints 11 moving together with the corresponding sealing strip 23, each splint 11 is deformed. It will move toward the middle of the annular block 2 until each clamping plate 11 is in close contact with the side surfaces of the wires. Then, the external force applied to the rotating block 20 and the handle 13 is removed. Under the elastic force of the torsion spring 31 and the second spring 29, the insertion rod 6 and the rotating block 20 will be reset, that is, the lower end of the insertion rod 6 will be engaged with the corresponding slot. The surface of each clamping plate 11 in contact with the wires is made of rubber. Under the joint clamping action of multiple clamping plates 11, the wires can be effectively prevented from loosening, and the fixing and tightening effect of the wires is better, thereby preventing leakage, which is beneficial to the use of low-voltage switches.

[0038] When the switch body 1 needs to be disassembled, the pull rod 8 is first pulled to move it in the direction close to the rectangular rod 9. The moving block 24 will slide inside the cavity. During the movement of the limit opening 18, it will slide relative to the limit rod 25 until the surface of the moving block 24 is in close contact with the inner wall of one side of the cavity. At this time, under the elastic force of the third spring 27, the limit rod 25 will shrink to the inside of the cavity, and one end of the limit rod 25 will disengage from the circular groove 26. Then the rectangular rod 9 is pulled to slide relative to the mounting block 7. The inclination angles of the two hinged rods 14 change at the same time, and the angle between the two hinged rods 14 becomes larger. The distance between the two rectangular blocks 15 and the block 10 increases at the same time. After the two blocks 10 move, they will disengage from the mounting position, thereby realizing the disassembly of the switch body 1. The installation and disassembly efficiency of the switch body 1 is high, the operation is time-saving and labor-saving, and it is beneficial to the use of the switch body 1.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A low-voltage switch device for preventing leakage, comprising a switch body (1), characterized in that: The upper surface of the switch body (1) is provided with two wiring ports (12), and two annular blocks (2) are provided above the switch body (1). The bottom of each annular block (2) is fixedly connected to two support rods (30), and each support rod (30) is fixedly connected to the switch body (1); Each of the annular blocks (2) is provided with a plurality of sealing cavities (17), each of the sealing cavities (17) is provided with a sliding assembly, the sliding assembly comprising a sealing strip (23) slidably mounted inside the sealing cavity (17), the cross section of the sealing strip (23) being T-shaped, and one end of the sealing strip (23) passing through the annular block (2) being fixedly connected to a clamping plate (11); Two groups of inflatable components are provided on the upper surface of the switch body (1), each group of inflatable components includes a plurality of airbags (3), a plurality of fixing plates (5) are fixedly connected to the upper surface of the switch body (1), the plurality of airbags (3) are fixedly connected to the plurality of fixing plates (5), each of the airbags (3) is connected to the corresponding sealed cavity (17) via a hose (28), two annular grooves are provided on the switch body (1), a plurality of slide rods (22) are slidably connected in each of the annular grooves, the plurality of slide rods (22) are connected via an annular plate (4), and a plurality of extrusion plates (21) are fixedly connected to the bottom of each annular plate (4); A handle (13) is fixedly connected to each of the annular plates (4), and an insertion rod (6) having an L-shaped cross section is slidably connected to the handle (13), and a plurality of slots for connecting the insertion rod (6) are provided on the upper surface of the switch body (1); Each handle (13) is rotatably connected to a rotating block (20), the cross section of the rotating block (20) is cross-shaped, a torsion spring (31) is sleeved on the rotating block (20), one end of the torsion spring (31) is fixedly connected to the rotating block (20), and the other end of the torsion spring (31) is fixedly connected to the handle (13); The back of the switch body (1) is fixedly connected to a mounting block (7), the mounting block (7) is provided with an opening, and two symmetrically arranged clamping blocks (10) are slidably mounted in the opening; A rectangular rod (9) is slidably connected to the mounting block (7), a sliding groove (16) is provided on an inner wall of one side of the mounting block (7), two rectangular blocks (15) are slidably connected in the sliding groove (16), the two rectangular blocks (15) are fixedly connected to the two clamping blocks (10) respectively, and each of the rectangular blocks (15) is hinged with a hinge rod (14), and the hinge rod (14) is hinged to the rectangular rod (9).

2. The anti-leakage low-voltage switchgear according to claim 1, characterized in that: A first spring (19) is sleeved on each sealing strip (23), one end of the first spring (19) is fixedly connected to the sealing strip (23), and the other end of the first spring (19) is fixedly connected to the inner wall of the sealing cavity (17).

3. The anti-leakage low-voltage switchgear according to claim 1, characterized in that: A second spring (29) is sleeved on each of the insertion rods (6), one end of the second spring (29) is fixedly connected to the insertion rod (6), and the other end of the second spring (29) is fixedly connected to the handle (13).

4. The anti-leakage low-voltage switchgear according to claim 1, characterized in that: A cavity is provided in each of the rectangular rods (9), and a moving block (24) is slidably connected to the inside of the cavity. A limiting opening (18) having a right-angled triangle cross section is provided on the moving block (24). A limiting rod (25) is slidably connected to the rectangular rod (9), and one end of the limiting rod (25) is fitted with an inclined surface of the limiting opening (18). Two circular grooves (26) are provided on the inner wall of one side of the mounting block (7).

5. The anti-leakage low-voltage switchgear according to claim 4, characterized in that: A third spring (27) is sleeved on the limiting rod (25), one end of the third spring (27) is fixedly connected to the limiting rod (25), and the other end of the third spring (27) is fixedly connected to the rectangular rod (9).

6. The low-voltage switchgear for preventing leakage according to claim 4, characterized in that: A pull rod (8) having a T-shaped cross section is fixedly connected to one side surface of the moving block (24), and the pull rod (8) is slidably connected to the rectangular rod (9).

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