Reed type protective pressing plate

Abstract

The utility model relates to the technical field of protection circuits, in particular to a reed type protection pressing plate. Comprising a base, a first screw rod, a second screw rod, an insulating nut, a switching mechanism, a connecting mechanism, a first clamping assembly and a second clamping assembly, the base is in a U shape, a first through hole penetrating up and down is formed in the left portion of the base, the first screw rod is in threaded connection with the interior of the first through hole, and the base is made of insulating materials. The first clamping assembly and the second clamping assembly are used for fixing an external wire and preventing the external wire from falling off, when the reed type protection pressing plate needs to be switched on, the switching mechanism is shifted downwards, so that the switching mechanism is connected with the connecting mechanism, a loop formed among the first screw rod, the switching mechanism, the connecting mechanism, the static contact and the second screw rod is switched on, and the reed type protection pressing plate is switched on. When the reed type protection pressing plate needs to be disconnected, the switching mechanism is pulled upwards, the switching mechanism and the connecting mechanism are not connected any more, the loop is disconnected, and the problem that an existing protection pressing plate is tedious in connection and disconnection operation can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection circuits and is a reed type protection pressure plate. Background Art

[0002] In the protection circuit of medium and high voltage power distribution equipment, protection connecting pieces, also known as protection pressure plates, are often used to realize the activation and deactivation of protection functions. In the existing protection pressure plate operation process, it is usually necessary to complete the task of connecting and disconnecting the circuit by rotating the loosening nut. This operation method is not only cumbersome, but also during the operation, the staff face a high risk of electric shock. Especially in high voltage environments, safety accidents may occur if the operation is not careful. In addition, due to the limitation of human factors, it is easy for the staff to fail to tighten the nut, causing the nut to gradually loosen over time, and then causing the protection pressure plate to slip, which is not only easy to affect the normal operation of the protection circuit, but also may cause circuit failure, posing a threat to the safety of equipment and personnel. Summary of the invention

[0003] The utility model provides a spring-type protection pressure plate, which overcomes the shortcomings of the prior art and can effectively solve the problem of complicated connection and disconnection operations of the prior protection pressure plate.

[0004] The technical solution of the utility model is achieved through the following measures: a spring leaf type protection pressure plate, including a base, a first screw, a second screw, an insulating nut, a switch mechanism, a connecting mechanism, a first clamping assembly and a second clamping assembly, the base is in a U-shape, a first through hole is opened on the left side of the base, a first screw is screwed in the first through hole, the upper end of the first screw passes through the upper end of the first through hole and is screwed with an insulating nut, the lower end of the first screw passes through the lower end of the first through hole and is screwed with a first clamping assembly for clamping an external wire, A switch mechanism that can be moved up and down is provided on the outside of the first screw rod corresponding to the position between the insulating nut and the base, a static contact is fixedly installed on the upper end of the right part of the base, and a connecting mechanism for connecting with the switch mechanism is fixedly installed on the upper end of the static contact. A second through hole that passes through the upper and lower parts is opened on the right part of the base corresponding to the position of the static contact, a second screw rod is screwed in the second through hole, the upper end of the second screw rod is connected to the lower end of the static contact, the lower end of the second screw rod passes through the lower end of the second through hole and is screwed with a second clamping assembly, and the second clamping assembly has the same structure as the first clamping assembly.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] The above-mentioned switch mechanism may include a first reed, a second reed, an insulating handle and a moving contact. The first reed is mounted on the outside of the first screw at a position corresponding to the position between the insulating nut and the base. A through groove running through the upper and lower parts is opened in the middle of the first reed. The second reed is arranged in the through groove. The second reed is in an arc shape with an opening upward. The left end of the second reed is fixedly connected to the left end of the through groove, the right end of the second reed is fixedly connected to the right end of the through groove, the right end of the first reed is fixedly connected to the insulating handle, and the moving contact is fixedly installed on the lower end of the first reed at a position corresponding to the position between the through groove and the insulating handle.

[0007] The above-mentioned connecting mechanism may include a third spring and a fourth spring. An installation groove is provided at the upper end of the static contact. A third spring with a semicircular opening facing forward is fixedly installed on the front side of the installation groove. A fourth spring with a semicircular opening facing backward is fixedly installed on the rear side of the installation groove. The middle parts of the third spring and the fourth spring are against each other.

[0008] The above-mentioned first clamping assembly may include a first nut, a second nut and a gasket. The first nut and the second nut are screwed sequentially on the lower part of the first screw from top to bottom, and at least two gaskets are mounted on the outer side of the first screw corresponding to the position between the first nut and the second nut.

[0009] A limiting groove with a rectangular cross section may be provided at the upper end of the base corresponding to the position of the insulating nut, and the cross section of the left portion of the first spring piece is a rectangle matching the limiting groove.

[0010] The utility model has a reasonable and compact structure and is easy to use. Its base is made of insulating material, and an insulating nut is arranged to clamp the switch mechanism between the insulating nut and the base. When needed, the switch mechanism can be taken out by removing the insulating nut, which is convenient for replacing the switch mechanism. When in use, the first clamping assembly and the second clamping assembly are used to fix the external wires to prevent them from falling. When it is necessary to connect the reed type protection pressure plate, the switch mechanism is toggled downward so that the switch mechanism is connected to the connecting mechanism, and the circuit formed between the first screw, the switch mechanism, the connecting mechanism, the static contact and the second screw is conductive. When it is necessary to disconnect the reed type protection pressure plate, the switch mechanism is toggled upward so that the switch mechanism is no longer connected to the connecting mechanism, and the circuit is disconnected. By toggling the switch mechanism up and down, the connection and disconnection operations of the reed type protection pressure plate can be conveniently realized, which can effectively solve the problem of complicated connection and disconnection operations of the existing protection pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 This is a schematic diagram of the main structure of the first embodiment.

[0012] Attached Figure 2 This is a schematic diagram of the main structure of the switch mechanism after closing in Example 1.

[0013] Attached Figure 3 It is a left-side structural schematic diagram of the first embodiment.

[0014] Attached Figure 4 It is a schematic diagram of the right side structure of the clamping assembly after the switch mechanism in the first embodiment is closed.

[0015] The codes in the accompanying drawings are: 1 is a base, 2 is a first screw, 3 is a second screw, 4 is an insulating nut, 5 is a first spring, 6 is a second spring, 7 is an insulating handle, 8 is a moving contact, 9 is a mounting groove, 10 is a third spring, 11 is a fourth spring, 12 is a static contact, 13 is a first nut, 14 is a second nut, 15 is a gasket, 16 is a limit groove, and 17 is a through groove. DETAILED DESCRIPTION

[0016] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0017] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0018] The present invention is further described below in conjunction with the embodiments and drawings:

[0019] Embodiment 1, as attached Figure 1 , 2 , 3, and 4, the spring leaf type protection pressure plate includes a base 1, a first screw 2, a second screw 3, an insulating nut 4, a switch mechanism, a connecting mechanism, a first clamping assembly and a second clamping assembly. The base 1 is in a U-shape, and a first through hole extending from top to bottom is opened on the left side of the base 1. The first screw 2 is screwed in the first through hole, and the upper end of the first screw 2 passes through the upper end of the first through hole and is screwed with the insulating nut 4. The lower end of the first screw 2 passes through the lower end of the first through hole and is screwed with the first clamping assembly for clamping the external wire. The insulating nut 4 and the base 1 are connected to each other. A switch mechanism that can be moved up and down is provided on the outside of the first screw rod 2 at the intermediate position, a static contact 12 is fixedly installed on the upper end of the right part of the base 1, and a connecting mechanism for connecting with the switch mechanism is fixedly installed on the upper end of the static contact 12. A second through hole that runs through the upper and lower parts is opened on the right part of the base 1 corresponding to the position of the static contact 12, and a second screw rod 3 is screwed in the second through hole. The upper end of the second screw rod 3 is connected to the lower end of the static contact 12, and the lower end of the second screw 3 passes through the lower end of the second through hole and is screwed with a second clamping assembly, and the second clamping assembly has the same structure as the first clamping assembly.

[0020] The base 1 is made of insulating material, and an insulating nut 4 is provided to clamp the switch mechanism between the insulating nut 4 and the base 1. When needed, the switch mechanism can be removed by removing the insulating nut 4, which is convenient for replacing the switch mechanism. When in use, the first clamping assembly and the second clamping assembly are used to fix the external wires to prevent them from falling. When it is necessary to connect the reed type protection pressure plate, the switch mechanism is toggled downward so that the switch mechanism is connected to the connecting mechanism, and the circuit formed between the first screw 2, the switch mechanism, the connecting mechanism, the static contact 12 and the second screw 3 is conductive. When it is necessary to disconnect the reed type protection pressure plate, the switch mechanism is toggled upward, the switch mechanism is no longer connected to the connecting mechanism, and the circuit is disconnected. By toggling the switch mechanism up and down, the connection and disconnection operations of the reed type protection pressure plate can be conveniently realized, which can effectively solve the problem of cumbersome connection and disconnection operations of the existing protection pressure plate.

[0021] The above-mentioned spring-type protection pressure plate can be further optimized and / or improved according to actual needs:

[0022] Embodiment 2, as attached Figure 1 , 2 As shown in Figures 3 and 4, this embodiment is a further optimization of the above embodiment. The switch mechanism includes a first reed 5, a second reed 6, an insulating handle 7 and a moving contact 8. The first reed 5 is sleeved on the outer side of the first screw rod 2 corresponding to the position between the insulating nut 4 and the base 1. A through groove 17 penetrating from top to bottom is opened in the middle of the first reed 5. The through groove 17 is provided with a second reed 6. The second reed 6 is in an arc shape with an opening upward. The left end of the second reed 6 is fixedly connected to the left end of the through groove 17, and the right end of the second reed 6 is fixedly connected to the right end of the through groove 17. The right end of the first reed 5 is fixedly connected to the insulating handle 7, and the moving contact 8 is fixedly installed on the lower end of the first reed 5 corresponding to the position between the through groove 17 and the insulating handle 7.

[0023] In this embodiment, an insulating handle 7 is provided to facilitate the staff to move the first reed 5. The moving contact 8 is provided at the lower right end of the first reed 5, so that the first reed 5 can be connected to the connecting mechanism to form a circuit. Specifically, the first reed 5 is moved downward until the moving contact 8 is connected to the connecting mechanism and the circuit is turned on. At this time, the elastic forces of the first reed 5 and the second reed 6 are balanced with each other, so that the first reed 5 and the second reed 6 remain in the current state; when the circuit needs to be disconnected, the first reed 5 is moved upward until the middle part of the first reed 5 is recessed, and the elastic forces of the first reed 5 and the second reed 6 are balanced with each other again, the first reed 5 remains in the current state, the moving contact 8 is no longer connected to the connecting mechanism, and the circuit is disconnected.

[0024] Embodiment 3, as attached Figure 3As shown, this embodiment is a further optimization of the above embodiment, a limiting groove 16 with a rectangular cross section is provided at the upper end of the base 1 corresponding to the position of the insulating nut 4, and the left cross section of the first spring piece 5 is a rectangle matching the limiting groove 16. The limiting groove 16 is used to limit the position and direction of the first spring piece 5, so as to facilitate the alignment of the moving contact 8 with the static contact 12.

[0025] Embodiment 4, as attached Figure 1 , 2 4, this embodiment is a further optimization of the above embodiment, the connection mechanism includes a third spring 10 and a fourth spring 11, the upper end of the static contact 12 is provided with a mounting groove 9, the front side of the mounting groove 9 is fixedly installed with the third spring 10 with a semicircular opening facing forward, the rear side of the mounting groove 9 is fixedly installed with the fourth spring 11 with a semicircular opening facing backward, and the middle of the third spring 10 and the fourth spring 11 are against each other. When the moving contact 8 is inserted into the mounting groove 9, the moving contact 8 compresses the third spring 10 and the fourth spring 11 at the same time, so that the third spring 10 and the fourth spring 11 generate a force opposite to the opening direction thereof, which resists the moving contact 8 and prevents the moving contact 8 from shifting.

[0026] Embodiment 5, as attached Figure 1 , 2 As shown in Figures 3 and 4, this embodiment is a further optimization of the above embodiment. The first clamping assembly includes a first nut 13, a second nut 14 and a gasket 15. The first nut 13 and the second nut 14 are screwed sequentially on the lower part of the first screw rod 2 from top to bottom. At least two gaskets 15 are sleeved on the outer side of the first screw rod 2 corresponding to the position between the first nut 13 and the second nut 14. When in use, the external wire is wound between the two gaskets 15 and clamped by the first nut 13 and the second nut 14, which can effectively prevent the wire from falling.

[0027] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A spring type protective pressure plate, characterized in that The invention comprises a base, a first screw, a second screw, an insulating nut, a switch mechanism, a connecting mechanism, a first clamping assembly and a second clamping assembly. The base is in a U-shape, and a first through hole which runs through from top to bottom is provided on the left part of the base. A first screw is screwed in the first through hole, an upper end of the first screw passes through an upper end of the first through hole and is screwed with an insulating nut, a lower end of the first screw passes through a lower end of the first through hole and is screwed with a first clamping assembly for clamping an external wire, a switch mechanism which can be moved up and down is provided on the outer side of the first screw corresponding to a position between the insulating nut and the base, a static contact is fixedly installed on an upper end of the right part of the base, a connecting mechanism for connecting with the switch mechanism is fixedly installed on an upper end of the static contact, a second through hole which runs through from top to bottom is provided on the right part of the base corresponding to the position of the static contact, a second screw is screwed in the second through hole, an upper end of the second screw is connected to a lower end of the static contact, a lower end of the second screw passes through a lower end of the second through hole and is screwed with a second clamping assembly, and the second clamping assembly has the same structure as the first clamping assembly.

2. The spring-type protection pressure plate according to claim 1, characterized in that The switch mechanism includes a first reed, a second reed, an insulating handle and a moving contact. The first reed is sleeved on the outside of the first screw at a position corresponding to the position between the insulating nut and the base. A through groove running through from top to bottom is opened in the middle of the first reed, and a second reed is arranged in the through groove. The second reed is in an arc shape with an opening upward. The left end of the second reed is fixedly connected to the left end of the through groove, and the right end of the second reed is fixedly connected to the right end of the through groove. The right end of the first reed is fixedly connected to the insulating handle, and the moving contact is fixedly installed on the lower end of the first reed corresponding to the position between the through groove and the insulating handle.

3. The reed type protection pressure plate according to claim 2, characterized in that A limiting groove with a rectangular cross section is provided at the upper end of the base corresponding to the position of the insulating nut, and the cross section of the left part of the first spring piece is a rectangle matching the limiting groove.

4. The reed type protection pressure plate according to claim 1, 2 or 3, characterized in that The connecting mechanism includes a third spring and a fourth spring. A mounting groove is provided at the upper end of the static contact. A third spring with a semicircular opening facing forward is fixedly installed on the front side of the mounting groove. A fourth spring with a semicircular opening facing backward is fixedly installed on the rear side of the mounting groove. The middle parts of the third spring and the fourth spring are against each other.

5. The reed type protection pressure plate according to claim 1, 2 or 3, characterized in that The first clamping assembly includes a first nut, a second nut and a gasket. The first screw rod has the first nut and the second nut screwed together in sequence from top to bottom. At least two gaskets are mounted on the outside of the first screw rod at a position between the first nut and the second nut.

6. The reed type protection pressure plate according to claim 4, characterized in that The first clamping assembly includes a first nut, a second nut and a gasket. The first screw rod has the first nut and the second nut screwed together in sequence from top to bottom. At least two gaskets are mounted on the outside of the first screw rod at a position between the first nut and the second nut.

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