Load switch with high sealing performance

Abstract

The utility model discloses a load switch with high sealing performance, which comprises a device outer shell and an inner shell, sealing side plates are fixedly arranged on the two side walls of the device outer shell, a layer of side plate insulation pad covers the inner wall of each sealing side plate, a lower sealing cover is arranged at the bottom of the device outer shell, and an upper sealing cover is arranged at the bottom of the inner shell. A sealing rubber ring is nested on the outer edge of the top of the lower sealing cover, an upper sealing cover is installed on the top of the device outer shell, a connecting rod in a linkage box enables a positioning shaft and an L-shaped linkage shaft to move upwards, a contact is pushed to move upwards, and the contact of the load switch is connected with a circuit again. After the contact is completely connected with the circuit, the linkage rod in the linkage box further pushes the push rod sealing sleeve, the linkage shaft continues to move upwards, the lower cover plate of the load switch moves downwards, the load switch is turned on, the upper sealing cover of the load switch seals the top of the load switch, water and moisture are prevented from entering the load switch from the top, and the safety of the load switch is improved. And the sealing performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to a load switch with high sealing performance. Background Art

[0002] The load switch proposed by the Chinese utility model patent (application number: CN201320267520.X) solves the problem that the existing load switch adopts mechanical retention when storing energy potential, which makes the product structure complex and the potential energy retention unreliable. It includes an operating mechanism, the operating mechanism includes a mounting frame, a static iron core and a moving iron core, the moving iron core and the mounting frame are slidably matched, a multi-turn coil is arranged in the mounting frame, the coil is wound on the outer wall of the static iron core and the moving iron core, a push rod is sleeved in the static iron core, one end of the push rod is fixedly connected to the moving iron core, and the other end of the push rod extends out of the mounting frame and is linked to the transmission mechanism. The operating mechanism is composed of the moving iron core, the static iron core and the multi-turn coil, so that the operating mechanism can not only realize the original opening and closing functions, but also can maintain the potential energy stored in the opening spring by the operating mechanism, which can effectively maintain the potential energy of the opening spring and reduce the production cost.

[0003] However, there are some shortcomings in the use of existing load switches that need to be improved. When the existing load switches work in a humid environment, the equipment may become damp, thereby causing electric shock accidents and causing serious damage to personnel and equipment. The existing load switches have poor sealing properties and cannot be waterproof or moisture-proof, which may cause water and moisture to enter the interior, thereby causing equipment short circuits, affecting the normal operation of the equipment, and resulting in a high equipment failure rate. Therefore, we have made improvements to this and proposed a load switch with high sealing properties. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a load switch with high sealing performance, comprising an outer shell and an inner shell, wherein sealing side panels are fixedly installed on both side walls of the outer shell, and a layer of side panel insulating pads is covered on the inner wall of each sealing side panel, a lower sealing cover is arranged at the bottom of the outer shell, a sealing rubber ring is nested on the outer edge of the top of the lower sealing cover, and an upper sealing cover is installed on the top of the outer shell, a waterproof and moisture-proof sealing panel is arranged between the lower sealing cover and the upper sealing cover, a linkage box is placed at the lower right corner of the inner shell, a base is arranged on the left side of the linkage box, a positioning shaft is arranged below the base, a connecting rod is linked to the upper shaft, and a push rod sealing sleeve is arranged above the connecting rod.

[0005] With the above structure, a protective structure is provided for the load switch through the device housing to prevent the external environment from affecting the internal components. The sealed side panel ensures that the internal components of the load switch will not be invaded by external moisture and humidity during use. The side panel insulation pad is located between the sealed side panel and the load switch, which plays an insulating and sealing role to ensure electrical safety. The lower sealing cover is located at the bottom of the load switch to prevent moisture and humidity from entering from the bottom. The sealing rubber ring is installed at the joint of the load switch to ensure a tight connection between the components and prevent moisture and humidity from penetrating. The upper sealing cover is located on the top of the load switch to prevent moisture and humidity from entering from the top. The waterproof and moisture-proof sealing panel is installed above the load switch, and together with the upper sealing cover, it forms a sealed space to prevent moisture and humidity from entering.

[0006] As a preferred technical solution of the utility model, a hinge axis is bolted to the left side of the front frame of the device outer shell, and the hinge axis is interconnected with the side plate of the waterproof and moisture-proof sealing panel.

[0007] By adopting the above structure, the upper and lower covers of the load switch are connected through the hinge shaft to realize the opening and closing of the waterproof and moisture-proof sealing panel.

[0008] As a preferred technical solution of the utility model, a transparent glass is arranged on the front plate of the waterproof and moisture-proof sealing panel, and the surface of the transparent glass is covered with a protective film for protecting the transparent glass.

[0009] With the above structure, a transparent glass is arranged on the front plate of the waterproof and moisture-proof sealing panel, and the transparent glass is located on the upper part of the load switch, so as to facilitate observation of the contact state inside the load switch.

[0010] As a preferred technical solution of the present utility model, an inner shell is arranged inside the outer shell of the device, and the inner shell is in an inverted "L" shape.

[0011] As a preferred technical solution of the utility model, insulators are installed above the horizontal plate of the outer shell, and the insulators are distributed in a linear array, and a contact is connected to the top of each insulator.

[0012] The above structure is installed on the contact of the load switch through the insulator, which plays an insulating and supporting role to ensure electrical safety. The contact is the core part of the load switch and is used to connect and disconnect the circuit.

[0013] As a preferred technical solution of the utility model, a support bracket is installed on the top plate of the linkage box, an arc extinguishing plate is connected to the top frame of the support bracket, and the arc extinguishing plate is inclined at an angle of forty-five degrees.

[0014] The above structure is adopted, and the arc extinguishing plate is installed under the contact of the load switch to extinguish the arc when the contact is disconnected.

[0015] As a preferred technical solution of the utility model, the upper rotating shaft of the connecting rod top rod is connected with an L-shaped linkage shaft, and a linkage rod is movably connected between the L-shaped linkage shaft and the linkage box.

[0016] With the above structure, the L-shaped linkage shaft and the contact are connected through the linkage rod to realize the opening and closing of the contact.

[0017] As a preferred technical solution of the utility model, the push rod sealing sleeve is connected to the side wall of the linkage box, a load switch push rod is slidably connected inside the push rod sealing sleeve, a switch push rod is installed on the load switch push rod top rod, and the switch push rod corresponds to the insulator.

[0018] The beneficial effect of the utility model is that the outer shell of the device provides a protective structure for the load switch to prevent the external environment from affecting the internal components. The sealed side panel ensures that the internal components of the load switch will not be invaded by external moisture and humidity during use. The side panel insulation pad is located between the sealed side panel and the load switch, which plays an insulating and sealing role to ensure electrical safety. The lower sealing cover is located at the bottom of the load switch to prevent moisture and humidity from entering from the bottom. The sealing rubber ring is installed at the joint of the load switch to ensure a tight connection between the components and prevent moisture and humidity from penetrating. The upper sealing cover is located on the top of the load switch to prevent moisture and humidity from entering from the top. The waterproof and moisture-proof sealing panel is installed above the load switch, and together with the upper sealing cover, it forms a sealed space to prevent moisture and humidity from entering, effectively improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional structural diagram of the load switch of the utility model;

[0020] Figure 2 This is a structural diagram of the waterproof and moisture-proof sealing panel of the utility model;

[0021] Figure 3 This is the internal main view of the load switch of the utility model;

[0022] Figure 4 This is a structural diagram of the sealing side plate of the utility model. DETAILED DESCRIPTION

[0023] The implementation of the load switch with high sealing performance of the utility model is as follows: Figure 1-Figure 4As shown: it includes an outer shell 1 and an inner shell 10 of the device. Sealing side panels 2 are fixedly installed on both side walls of the outer shell 1 of the device. A layer of side panel insulating pads 3 is covered on the inner wall of each sealing side panel 2. A lower sealing cover 4 is arranged at the bottom of the outer shell 1 of the device. A sealing rubber ring 5 is nested on the outer edge of the top of the lower sealing cover 4. An upper sealing cover 6 is installed on the top of the outer shell 1 of the device. A waterproof and moisture-proof sealing panel 7 is arranged between the lower sealing cover 4 and the upper sealing cover 6. A linkage box 13 is placed at the lower right corner of the inner shell 10. A base 16 is arranged on the left side of the linkage box 13. A positioning shaft 17 is arranged below the base 16. A connecting rod 18 is linked to the upper shaft body. A push rod sealing sleeve 21 is arranged above the connecting rod 18.

[0024] A hinge shaft 8 is bolted to the left side of the front frame of the device outer shell 1, and the hinge shaft 8 is connected to the side plate of the waterproof and moisture-proof sealing panel 7. A transparent glass 9 is arranged on the front plate of the waterproof and moisture-proof sealing panel 7, and the surface of the transparent glass 9 is covered with a protective film for protecting the transparent glass 9. An inner shell 10 is arranged inside the device outer shell 1, and the inner shell 10 is in the shape of an inverted "L". Insulators 11 are installed above the horizontal plate of the outer shell 1, and the insulators 11 are distributed in a linear array, and a contact 12 is connected to the top of each insulator 11. A support bracket 14 is installed on the top plate of the linkage box 13, and an arc extinguishing plate 15 is connected to the top frame of the support bracket 14, and the arc extinguishing plate 15 is inclined at a forty-five degree angle. The upper shaft of the top rod of the connecting rod 18 is connected to an L-shaped linkage shaft 19, and a linkage rod 20 is movably connected between the L-shaped linkage shaft 19 and the linkage box 13. The push rod sealing sleeve 21 is connected to the side wall of the linkage box 13 , and a load switch push rod 22 is slidably connected inside the push rod sealing sleeve 21 . A switch push rod 23 is installed on the top rod of the load switch push rod 22 , and the switch push rod 23 corresponds to the insulator 11 .

[0025] Embodiment 2, a load switch with high sealing performance, the outer shell 1 of the device provides a protective structure for the load switch to prevent the external environment from affecting the internal components. The sealing side plate 2 ensures that the internal components of the load switch will not be invaded by external moisture and humidity during use. The side plate insulating pad 3 is located between the sealing side plate 2 and the load switch, which plays an insulating and sealing role to ensure electrical safety. The lower sealing cover 4 is located at the bottom of the load switch to prevent moisture and humidity from entering from the bottom. The sealing rubber ring 5 is installed at the joint of the load switch to ensure a tight connection between the components and prevent moisture and humidity from penetrating. The upper sealing cover 6 is located at the top of the load switch to prevent moisture and humidity from entering from the top. The waterproof and moisture-proof sealing panel 7 is installed above the load switch, and together with the upper sealing cover 6, a sealed space is formed to prevent moisture and humidity from entering. The hinge shaft 8 connects the upper and lower cover plates of the load switch to realize the opening and closing of the cover plate. The transparent glass 9 is located at the upper part of the load switch, which is convenient for observing the state of the contacts 12 inside the load switch. The inner shell 10 is located inside the load switch to protect the internal components from the influence of the external environment. The insulator 11 is installed on the contact 12 of the load switch, which plays an insulating and supporting role to ensure electrical safety. The contact 12 is used to connect and disconnect the circuit. The linkage box 13 is installed at the bottom of the load switch to control the opening and closing of the load switch. The support bracket 14 is installed on the linkage box 13 to support the weight of the linkage box 13. The arc extinguishing plate 15 is installed below the contact 12 of the load switch to extinguish the arc when the contact 12 is disconnected. The base 16 is fixed to the bottom of the load switch to play a supporting and fixing role. The positioning shaft 17 is installed on the base 16 to fix the position of the load switch. The linkage rod 20 connects the L-shaped linkage shaft 19 and the contact 12 to realize the opening and closing of the contact 12. The push rod sealing sleeve 21 is installed on the linkage rod 20 to prevent moisture and moisture from entering from the gap between the linkage rod 20 and the inner housing 10. The load switch push rod 22 is installed on the linkage rod 20 to push the contact 12 to realize the connection and disconnection of the circuit. The switch top rod 23 is installed on the top of the load switch to fix the position of the load switch.

[0026] The working principle of the utility model is as follows: when the operator needs to disconnect the power supply, he first presses the operating button of the load switch. The operating button triggers the movement of the connecting rod 18 in the linkage box 13, and the connecting rod 18 is connected to the positioning shaft 17 and the L-shaped linkage shaft 19, and the L-shaped linkage shaft 19 is connected to the contact 12, thereby pushing the contact 12 to move downward, so that the contact 12 of the load switch is disconnected from the circuit. When the contact 12 is completely disconnected from the circuit, the arc extinguishing plate 15 in the linkage box 13 will extinguish the arc to prevent the arc from damaging the contact 12 and surrounding components. The linkage rod 20 in the linkage box 13 will further push the push rod sealing sleeve 21, and the push rod sealing sleeve 21 is connected to the push rod, and the push rod is connected to the linkage shaft, so that the linkage shaft continues to move downward, so that the upper cover plate of the load switch moves upward, and the load switch is closed. Finally, the lower sealing cover 4 of the load switch will close the bottom of the load switch to prevent water and moisture from entering from the bottom. When the power supply needs to be reconnected, the operator only needs to press the operating button of the load switch again. At this time, the connecting rod 18 in the linkage box 13 will move the positioning shaft 17 and the L-shaped linkage shaft 19 upward, pushing the contact 12 upward, so that the contact 12 of the load switch is reconnected with the circuit. When the contact 12 is fully connected with the circuit, the linkage rod 20 in the linkage box 13 will further push the push rod sealing sleeve 21, so that the linkage shaft continues to move upward, so that the lower cover of the load switch moves downward, and the load switch is opened. Finally, the upper sealing cover 6 of the load switch will close the top of the load switch to prevent water and moisture from entering from the top.

[0027] The above embodiments are only preferred specific embodiments of the present invention, which are load switches with high sealing performance. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A load switch with high sealing performance, comprising an outer shell and an inner shell, characterized in that: Sealing side panels are fixedly installed on both side walls of the device outer shell, and a layer of side panel insulating pads are covered on the inner walls of the sealing side panels. A lower sealing cover is arranged at the bottom of the device outer shell, and a sealing rubber ring is nested on the outer edge of the top of the lower sealing cover, and an upper sealing cover is installed on the top of the device outer shell, and a waterproof and moisture-proof sealing panel is arranged between the lower sealing cover and the upper sealing cover. A linkage box is placed at the lower right corner of the inner shell, a base is arranged on the left side of the linkage box, a positioning shaft is arranged below the base, a connecting rod is linked above the positioning shaft, a push rod sealing sleeve is arranged above the connecting rod, the push rod sealing sleeve is connected to the side walls of the linkage box, and a load switch push rod is slidably connected inside the push rod sealing sleeve.

2. A load switch with high sealing performance according to claim 1, characterized in that: A hinge shaft is bolted to the left side of the front frame of the device outer shell, and the hinge shaft is connected to the side plate of the waterproof and moisture-proof sealing panel.

3. A load switch with high sealing performance according to claim 1, characterized in that: The front plate of the waterproof and moisture-proof sealing panel is provided with transparent glass.

4. A load switch with high sealing performance according to claim 1, characterized in that: An inner shell is arranged inside the outer shell of the device, and the inner shell is in an inverted "L" shape.

5. The load switch with high sealing performance according to claim 1, characterized in that: Insulators are installed above the horizontal plate of the outer shell, and the insulators are distributed in a linear array. Contacts are connected to the tops of the insulators.

6. A load switch with high sealing performance according to claim 1, characterized in that: A support bracket is installed on the top plate of the linkage box, and an arc extinguishing plate is connected to the top frame of the support bracket. The arc extinguishing plate is inclined at a forty-five degree angle.

7. A load switch with high sealing performance according to claim 1, characterized in that: The upper rotating shaft of the connecting rod top rod is connected with an L-shaped linkage shaft, and a linkage rod is movably connected between the L-shaped linkage shaft and the linkage box.

8. The load switch with high sealing performance according to claim 1, characterized in that: A switch top rod is installed on the load switch push rod top rod, and the switch top rod corresponds to the insulator.

Images