CN116344259A - Vacuum switch with automatic circuit breaker - Google Patents

Abstract

The invention provides a vacuum switch with an automatic circuit breaker, which comprises a bottom plate, wherein one side of the top of the bottom plate is vertically connected with a side plate, a plurality of pairs of support plates are equidistantly arranged at the upper end of one side of the side plate, which is close to the bottom plate, a plurality of guide shafts are fixedly connected between the two support plates, two electrode plates are also arranged between the two support plates and are in sliding connection with the guide shafts, return springs are fixedly connected between the electrode plates and the support plates, a reinforcing rod is arranged above the bottom plate, a plurality of insulating rods are equidistantly and vertically connected on the reinforcing rod, a driving push rod motor is rotationally connected at the central position of one side of the reinforcing rod through a U-shaped support piece, and the other end of the driving push rod motor is rotationally connected on the side plate through the U-shaped support piece; the top of the insulating rod is fixedly connected with a block electrode, and the bottom of the insulating rod is fixedly connected with an insulating rotating seat. The invention improves the stability of connection between the block electrode and the electrode plate, and ensures the use safety of the device.

Description

Vacuum switch with automatic circuit breaker

Technical Field

The invention relates to the technical field of switches, in particular to a vacuum switch with an automatic circuit breaker.

Background

The negative pressure switch is also called a vacuum switch, is an intelligent instrument integrating negative pressure measurement, display and control, and has the characteristics of simple operation, convenient installation, high precision, strong function and the like. The pressure switch has the functions of reverse control, time delay control, pressure leakage protection, password protection, one-key error zero clearing, multiple pressure switching and the like, can be used for measuring various vacuum degrees, and can be matched with various vacuum pumps for use.

The vacuum switch is a pressure protection automatic controller for a vacuum system. When the vacuum pressure in the system is greater than the set point, the controller automatically cuts off the circuit and sends out a signal to ensure the normal operation of the system. When the pressure in the system is higher or lower than the safety pressure, the pressure sensor in the controller acts immediately to switch on or off the contact in the controller, and the equipment stops working at the moment; when the pressure in the system returns to the safe pressure range of the equipment, the pressure sensor in the controller is reset immediately, so that the contact in the controller is switched on or off, and the equipment works normally.

In a power distribution network, a switching device with a control or protection function is an important device which is necessarily applied to a circuit, and has the functions of closing and opening the circuit, the traditional circuit switch is opened and closed by manual operation, the connection between electrodes is unstable, poor contact and arc are easily caused, and production accidents are easily caused. To this end we propose a vacuum switch with an automatic circuit breaker.

Disclosure of Invention

Aiming at the defects that the existing traditional circuit switch is opened and closed by manual operation, the connection between electrodes is unstable and is easy to cause poor contact and arc, and production accidents are easy to occur, the invention provides a vacuum switch with an automatic circuit breaker.

The technical scheme of the invention is realized as follows:

the vacuum switch with the automatic circuit breaker comprises a bottom plate, wherein one side of the top of the bottom plate is vertically connected with a side plate, a plurality of pairs of support plates are equidistantly arranged at the upper end of one side of the side plate, which is close to the bottom plate, each pair of support plates is vertically connected with the side edge of the side plate, a plurality of guide shafts are fixedly connected between the two support plates, two electrode plates are also arranged between the two support plates, the top of each electrode plate is connected with a fastening bolt, the electrode plates are slidably connected on the guide shafts, the electrode plates and the support plates are arranged in parallel, return springs are fixedly connected between the electrode plates and the support plates, and the return springs are sleeved on all the guide shafts;

the upper part of the bottom plate is provided with a reinforcing rod, a plurality of insulating rods are vertically connected to the reinforcing rod at equal intervals, the insulating rods respectively correspond to the positions of each pair of supporting plates, a driving push rod motor is rotationally connected to the central position of one side of the reinforcing rod, and the other end of the driving push rod motor is rotationally connected to the side plate;

the top of insulator spindle all fixedly connected with massive electrode, massive electrode can block between two electrode plates that are located corresponding position department, the bottom of insulator spindle all fixedly connected with insulation rotates the seat, insulation rotates the seat rotation and connects at the top of bottom plate.

Preferably, two the electrode plates are kept away from the equal fixedly connected with arc limit of one end of curb plate, two the tip on arc limit is all outwards crooked.

Preferably, the top equidistance fixedly connected with U type frame of bottom plate, insulating rotation seat is rotated through the pivot and is connected in the U type frame of corresponding position department.

Preferably, top of two backup pad is equipped with the roof, the one end fixed connection of roof is on the curb plate, the bottom symmetry of roof is equipped with the side protection shield, side protection shield and curb plate fixed connection, just the backup pad is located between two side protection shields.

Preferably, one side of the side plate and the top of the bottom plate are connected with sealing covers, and the side edges of the sealing covers parallel to the side plate are provided with observation windows.

Preferably, transparent glass is connected in a sealing manner in the observation window.

Preferably, the side plate and the bottom plate are arranged in an L shape.

Preferably, the driving push rod motor rotates at the center position of one side of the reinforcing rod through the U-shaped supporting piece, and the other end of the driving push rod motor is also connected to the side plate through the U-shaped supporting piece in a rotating mode.

Preferably, the insulating rod is a plastic rod.

Preferably, the reinforcing rod is made of stainless steel or aluminum alloy.

Compared with the existing vacuum switch with an automatic breaker, the invention has the following beneficial effects:

1. when the invention is used, the reinforcing rod is driven to move by the driving push rod motor, so that the insulating rod is driven to rotate, the block-shaped electrode at the top of the insulating rod can be rapidly moved into the two electrode plates, the automation is realized, and the problem that the prior art is mainly used for switching and closing manually is solved.

2. According to the invention, the clamping force between the two electrode plates can be improved under the elastic force of the reset spring, so that the block electrode positioned between the two electrode plates can be stably clamped, and the stable connection of the block electrode between the two electrode plates is realized, and the circuit is kept in a stable path.

3. According to the invention, through the arranged sealing cover, one side of the side plate and one side of the bottom plate can be sealed, the device is protected, and meanwhile, the observation window arranged on the sealing cover is sealed, so that the observation of the inside of the sealing cover by workers is facilitated, and the maintenance of the circuits by workers is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a vacuum switch with an automatic circuit breaker according to the present invention.

Fig. 2 is a schematic structural view of connection among an arc-shaped edge, a guide shaft and a support plate of a vacuum switch with an automatic circuit breaker.

Fig. 3 is a schematic structural view of connection among a block electrode, an insulating rod and an insulating rotating base of a vacuum switch with an automatic circuit breaker according to the present invention.

Fig. 4 is a schematic structural view of connection between a side protection plate and a top plate of a vacuum switch with an automatic circuit breaker according to the present invention.

Fig. 5 is a schematic diagram of a connection between a driving push rod motor and a sealing cover of a vacuum switch with an automatic circuit breaker.

In the figure: the device comprises a side plate 1, an arc-shaped edge 2, a block electrode 3, an insulating rod 4, an insulating rotating seat 5, a U-shaped frame 6, a rotating shaft 7, a reinforcing rod 8, a driving push rod motor 9, a bottom plate 10, a side protection plate 11, a top plate 12, a support plate 13, a fastening bolt 14, a return spring 15, a guide shaft 16, an electrode plate 17, a U-shaped support 18, a sealing cover 19 and an observation window 20.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples and are not intended to limit the scope of protection of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in the embodiments may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the description of specific embodiments only and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that there may be three relationships, e.g., a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In this application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this application is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of the "examination guideline," the expressions "greater than", "less than", "exceeding", and the like are understood to exclude the present number in this application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of groups", "a plurality of" and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as terms of orientation or positional relationship based on the specific embodiments or figures, and are merely for convenience of description of the specific embodiments of the present application or ease of understanding of the reader, and do not indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation, and therefore are not to be construed as limiting of the embodiments of the present application.

Unless specifically stated or limited otherwise, in the description of the embodiments of the present application, the terms "mounted," "connected," "affixed," "disposed," and the like are to be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to the specific circumstances.

The negative pressure switch is also called a vacuum switch, is an intelligent instrument integrating negative pressure measurement, display and control, and has the characteristics of simple operation, convenient installation, high precision, strong function and the like. The pressure switch has the functions of reverse control, time delay control, pressure leakage protection, password protection, one-key error zero clearing, multiple pressure switching and the like, can be used for measuring various vacuum degrees, and can be matched with various vacuum pumps for use.

The vacuum switch is a pressure protection automatic controller for a vacuum system. When the vacuum pressure in the system is greater than the set point, the controller automatically cuts off the circuit and sends out a signal to ensure the normal operation of the system. When the pressure in the system is higher or lower than the safety pressure, the pressure sensor in the controller acts immediately to switch on or off the contact in the controller, and the equipment stops working at the moment; when the pressure in the system returns to the safe pressure range of the equipment, the pressure sensor in the controller is reset immediately, so that the contact in the controller is switched on or off, and the equipment works normally.

In a power distribution network, a switching device with a control or protection function is an important device which is necessarily applied to a circuit, and has the functions of closing and opening the circuit, the traditional circuit switch is opened and closed by manual operation, the connection between electrodes is unstable, poor contact and arc are easily caused, and production accidents are easily caused. To this end we propose a vacuum switch with an automatic circuit breaker.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a vacuum switch with automatic circuit breaker, includes bottom plate 10, as shown in fig. 1, and top one side of bottom plate 10 is connected with curb plate 1 perpendicularly, is L shape setting between curb plate 1 and the bottom plate 10, scribbles anti-corrosion coating on the outer wall of curb plate 1 and bottom plate 10, not only can play the effect of protection to the surface of curb plate 1 and bottom plate 10, can improve the protection ability of curb plate 1 and bottom plate 10 to its internal mechanism simultaneously.

And the side board 1 is close to one side upper end equidistance of bottom plate 10 and is equipped with a plurality of pairs of backup pads 13, and every pair of backup pad 13 all is connected perpendicularly with the side of curb plate 1, a plurality of guiding axles 16 of fixed connection between two backup pads 13, still be equipped with two electrode plates 17 between two backup pads 13, the top of electrode plate 17 all is connected with fastening bolt 14, but connecting wire on the fastening bolt 14, when the wire is installed, rotate fastening bolt 14 upwards, and twine the wire on fastening bolt 14's outer wall, rotate fastening bolt 14 after the winding is accomplished, make fastening bolt 14 can press down the wire of winding on its outer wall, and then can be with the stable connection of wire on electrode plate 17.

As shown in fig. 2, the electrode plates 17 are slidably connected to the guide shafts 16, the electrode plates 17 and the support plates 13 are arranged in parallel, the electrode plates 17 and the support plates 13 are fixedly connected with the return springs 15, the return springs 15 are sleeved on all the guide shafts 16, anti-corrosion coatings are coated on the outer walls of the return springs 15, the return springs 15 can be prevented from being corroded by humid environments, the return springs 15 are further protected, the service lives of the return springs 15 are prolonged, meanwhile, the service lives of the whole device are prolonged, when the two electrode plates 17 are stressed, the two electrode plates move towards the support plates 13, the movable electrode plates 17 squeeze the return springs 15, and when the stress is finished, the two electrode plates 17 can be driven to recover to the initial positions under the elastic force of the return springs 15.

As shown in fig. 3, the reinforcing rod 8 is arranged above the bottom plate 10, a plurality of insulating rods 4 are vertically connected to the reinforcing rod 8 at equal intervals, the plurality of insulating rods 4 respectively correspond to each pair of supporting plates 13, the reinforcing rod 8 is connected to the central positions of the plurality of insulating rods 4, a whole can be formed between the plurality of insulating rods 4, when the plurality of insulating rods 4 are pushed, simultaneous movement of the plurality of insulating rods 4 can be performed, convenience is brought to adjustment, the central position of one side of the reinforcing rod 8 is rotationally connected with the driving push rod motor 9 through the U-shaped supporting piece 18, the other end of the driving push rod motor 9 is rotationally connected to the side plate 1 through the U-shaped supporting piece 18, when the driving push rod motor 9 performs telescopic movement, the reinforcing rod 8 can be pushed to perform reciprocating movement, and when the reinforcing rod motor moves, two ends of the driving push rod motor 9 respectively rotate in the U-shaped supporting pieces 18 at two ends, normal operation of adjustment is guaranteed, the driving push rod motor 9 is connected with the PLC through a wire, and the PLC is connected with the overload protector through the wire.

As shown in fig. 3, the top of the insulating rod 4 is fixedly connected with a block electrode 3, one side of the block electrode 3 is fixedly connected with a wire, a bolt can be connected to the block electrode 3, when the wire is installed, the bolt is rotated, the wire is wound on the outer wall of the bolt, after the wire is wound, the bolt is rotated, the rotating bolt can press the wire wound on the outer wall of the bolt, and then the wire can be connected to the block electrode 3.

The block electrode 3 can be clamped between two electrode plates 17 positioned at corresponding positions, the bottom of the insulating rod 4 is fixedly connected with the insulating rotating seat 5, the insulating rotating seat 5 is rotationally connected to the top of the bottom plate 10, the driving push rod motor 9 pushes the reinforcing rod 8 to move, the moving reinforcing rod 8 drives the bottom of the insulating rod 4 to rotate at the top of the bottom plate 10, and the insulating rotating seat 5 at the bottom of the insulating rod 4 rotates in the U-shaped frame 6 during rotation, so that connection between the block electrode 3 at the top of the insulating rod 4 and the two electrode plates 17 can be controlled, and further communication of a circuit is realized.

Further, as shown in fig. 1 and fig. 2, the end that two electrode plates 17 kept away from curb plate 1 is all fixedly connected with arc limit 2, the tip on two arc limit 2 is all outwards crooked, and structure as an organic whole between arc limit 2 and the electrode plate 17, the stability of being connected between electrode plate 17 and the arc limit 2 has been improved, the tip that two electrode plates 17 were made to two arc limit 2 that the bending set up is the opening form, when the one end of bulk electrode 3 moved to two arc limit 2 one end departments, bulk electrode 3 can be held by two arc limit 2, bulk electrode 3 can promote the inner wall on arc limit 2 for bulk electrode 3 can be quick remove to between two electrode plates 17, and then the quick connection of bulk electrode 3 between two electrode plates 17 has been made things convenient for.

Further, as shown in fig. 1 and 3, the U-shaped frames 6 are fixedly connected to the top of the bottom plate 10 at equal intervals, the insulating rotary seat 5 is rotatably connected in the U-shaped frames 6 at the corresponding positions through the rotary shaft 7, and when the insulating rod 4 rotates, the insulating rotary seat 5 can be driven to rotate in the U-shaped frames 6 through the connection of the U-shaped frames 6, so that the insulating rotary seat 5 is guaranteed to stably rotate at the top of the bottom plate 10.

Further, as shown in fig. 1 and 4, a top plate 12 is disposed above two support plates 13, one end of the top plate 12 is fixedly connected to the side plate 1, side protection plates 11 are symmetrically disposed at the bottom of the top plate 12, the side protection plates 11 are fixedly connected to the side plate 1, the support plates 13 are located between the two side protection plates 11, the disposed side protection plates 11 and the top plate 12 can separate the electrode plates 17 at adjacent positions, so that the two electrode plates 17 at adjacent positions are in insulating filling, the side protection plates 11 and the top plate 12 can protect the two support plates 13 below the side protection plates, and meanwhile, the safety of the whole device is improved.

Further, as shown in fig. 1, one side of the side plate 1 and the top of the bottom plate 10 are connected with a sealing cover 19, the sealing cover 19 can be installed and connected with the side plate 1 and the bottom plate 10 through bolts, and an anti-corrosion coating is arranged on the surface of the sealing cover 19, so that corrosion can be generated on the surface of the sealing cover 19, the service life of the whole sealing cover 19 can be prolonged, meanwhile, the protection capability is improved, an observation window 20 is arranged on the side edge of the sealing cover 19 parallel to the side plate 1, and the arranged observation window 20 is convenient for a worker to overhaul a circuit.

Further, as shown in fig. 1, the transparent glass is hermetically connected in the observation window 20, and the provided transparent glass not only can play a sealing role on one side of the sealing cover 19, but also facilitates the observation of the inside of the sealing cover 19 by a worker, and facilitates the maintenance of the device by the worker.

Specifically, when the invention is used, the reinforcing rod 8 is pushed to move by the driving push rod motor 9, so that the insulating rod 4 can be driven to rotate, the rotating insulating rod 4 can drive the block electrode 3 at the top of the insulating rod to move into the two electrode plates 17, the block electrode 3 can be stably clamped by the two electrode plates 17 under the elastic force of the reset spring 15, the stable connection of the block electrode 3 between the two electrode plates 17 is ensured, the circuit access is realized, and when the push rod motor 9 is driven to move towards the opposite direction, the insulating rod 4 can be driven to rotate towards the initial position, so that the block electrode 3 can be driven to move out of the two electrode plates 17, and the circuit disconnection is realized.

Preferably, the insulating rod is a plastic rod.

Preferably, the reinforcing rod is made of stainless steel or aluminum alloy.

Finally, it should be noted that, although the foregoing embodiments have been described in the text and the accompanying drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical schemes generated by replacing or modifying equivalent structures or equivalent flows based on the essential idea of the application and by utilizing the contents recorded in the text and the drawings of the application, and the technical schemes of the embodiments are directly or indirectly implemented in other related technical fields, and the like, are included in the patent protection scope of the application.

Claims (10)

1. The vacuum switch with the automatic circuit breaker comprises a bottom plate and is characterized in that one side of the top of the bottom plate is vertically connected with a side plate, a plurality of pairs of support plates are equidistantly arranged at the upper end of one side of the side plate, which is close to the bottom plate, each pair of support plates is vertically connected with the side edge of the side plate, a plurality of guide shafts are fixedly connected between the two support plates, two electrode plates are also arranged between the two support plates, the top of each electrode plate is connected with a fastening bolt, the electrode plates are slidably connected on the guide shafts, the electrode plates and the support plates are arranged in parallel, return springs are fixedly connected between the electrode plates and the support plates, and the return springs are sleeved on all the guide shafts;

the upper part of the bottom plate is provided with a reinforcing rod, a plurality of insulating rods are vertically connected to the reinforcing rod at equal intervals, the insulating rods respectively correspond to the positions of each pair of supporting plates, a driving push rod motor is rotationally connected to the central position of one side of the reinforcing rod, and the other end of the driving push rod motor is rotationally connected to the side plate;

the top of insulator spindle all fixedly connected with massive electrode, massive electrode can block between two electrode plates that are located corresponding position department, the bottom of insulator spindle all fixedly connected with insulation rotates the seat, insulation rotates the seat rotation and connects at the top of bottom plate.

2. The vacuum switch with automatic circuit breaker according to claim 1, wherein the ends of the two electrode plates far away from the side plates are fixedly connected with arc-shaped edges, and the ends of the two arc-shaped edges are bent outwards.

3. The vacuum switch with automatic circuit breaker according to claim 1, wherein the top of the bottom plate is fixedly connected with a U-shaped frame at equal intervals, and the insulating rotating seat is rotatably connected in the U-shaped frame at a corresponding position through a rotating shaft.

4. The vacuum switch with automatic circuit breaker according to claim 1, wherein a top plate is arranged above two supporting plates, one end of the top plate is fixedly connected to the side plate, side protection plates are symmetrically arranged at the bottom of the top plate, the side protection plates are fixedly connected with the side plate, and the supporting plate is located between the two side protection plates.

5. The vacuum switch with automatic circuit breaker according to claim 1, wherein one side of the side plate and the top of the bottom plate are connected with sealing covers, and the side edges of the parallel side plates of the sealing covers are provided with observation windows.

6. The vacuum switch with automatic circuit breaker according to claim 5, wherein transparent glass is hermetically connected in the observation window.

7. The vacuum interrupter as defined in claim 1, wherein said side plates and bottom plate are disposed in an L-shape.

8. The vacuum switch with automatic circuit breaker according to claim 1, wherein the driving push rod motor is rotated at a center position of one side of the reinforcing rod by the U-shaped support member, and the other end of the driving push rod motor is also rotatably connected to the side plate by the U-shaped support member.

9. The vacuum switch with automatic circuit breaker according to claim 1, characterized in that said insulating rod is a plastic rod.

10. The vacuum switch with automatic circuit breaker according to claim 1, wherein the reinforcing rod is made of stainless steel or aluminum alloy.

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