CN216773129U

CN216773129U - Vacuum switch with automatic circuit breaker

Info

Publication number: CN216773129U
Application number: CN202123262714.4U
Authority: CN
Inventors: 汪童志; 何奕明; 陆良平
Original assignee: Fujian Ceepower Co ltd
Current assignee: Fujian Ceepower Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-17
Anticipated expiration: 2031-12-23

Abstract

The utility model 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 supporting plates are equidistantly arranged at the upper end of one side of the side plate close to the bottom plate, a plurality of guide shafts are fixedly connected between the two supporting plates, two electrode plates are also arranged between the two supporting plates and are connected to the guide shafts in a sliding manner, return springs are fixedly connected between the electrode plates and the supporting plates, a reinforcing rod is arranged above the bottom plate, a plurality of insulating rods are equidistantly and vertically connected to the reinforcing rod, a driving push rod motor is rotatably connected to the central position of one side of the reinforcing rod through a U-shaped supporting piece, and the other end of the driving push rod motor is also rotatably connected to the side plate through the U-shaped supporting 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 utility model improves the connection stability 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 utility model relates to the technical field of switches, in particular to a vacuum switch with an automatic circuit breaker.

Background

The negative pressure 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, leakage voltage protection, password protection, one-key error zero clearing, various pressure switching and the like, can be used for measuring various vacuum degrees, and can be matched with various vacuum pumps for use.

A 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 will automatically cut off the circuit and send a signal to ensure the normal operation of the system. When the pressure in the system is higher or lower than the safe pressure, the pressure sensor in the controller acts immediately to make the contact in the controller switched on or off, 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 immediately reset, so that the contact in the controller is switched on or off, and the equipment works normally.

In a power distribution network, a switch device with a control or protection function is an important device which is inevitably applied to a circuit and plays a role in closing and opening the circuit, a traditional circuit switch is opened and closed mostly through manual switching, and electrodes are not firmly connected, so that poor contact and electric arcs are easily generated, and production accidents are easily caused. To this end, we propose a vacuum switch with an automatic circuit breaker.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vacuum switch with an automatic circuit breaker, aiming at the defects that the conventional circuit switch is opened and closed by hand, the connection between electrodes is unstable, poor contact and electric arc are easily generated, and production accidents are easily caused.

The technical scheme of the utility model is realized as follows:

a vacuum switch with an automatic circuit breaker comprises a bottom plate, wherein a side plate is vertically connected to one side of the top of the bottom plate, a plurality of pairs of supporting plates are arranged at the upper end of one side, close to the bottom plate, of the side plate at equal intervals, each pair of supporting plates are vertically connected with the side edge of the side plate, a plurality of guide shafts are fixedly connected between the two supporting plates, two electrode plates are further arranged between the two supporting plates, fastening bolts are connected to the tops of the electrode plates, the electrode plates are connected onto the guide shafts in a sliding mode, the electrode plates and the supporting plates are arranged in parallel, return springs are fixedly connected between the electrode plates and the supporting plates, and the return springs are sleeved on all the guide shafts;

a reinforcing rod is arranged above the bottom plate, a plurality of insulating rods are vertically connected to the reinforcing rod at equal intervals, the insulating rods correspond to the positions of each pair of supporting plates respectively, a driving push rod motor is rotatably connected to the center of one side of each reinforcing rod, and the other end of the driving push rod motor is rotatably connected to the side plate;

the top of the insulating rod is fixedly connected with a block electrode, the block electrode can be clamped between two electrode plates located at corresponding positions, the bottom of the insulating rod is fixedly connected with an insulating rotating seat, and the insulating rotating seat is rotatably connected to the top of the bottom plate.

Preferably, two the equal fixedly connected with arc limit of one end that the curb plate was kept away from to the electrode plate, two the tip on arc limit all outwards bends.

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

Preferably, the top of two backup pads 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 board, side protection board and curb plate fixed connection, just the backup pad is located between two side protection boards.

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, a transparent glass is hermetically connected in the observation window.

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

Preferably, the driving push rod motor is rotated at a central position of one side of the reinforcing rod through a U-shaped supporting member, and the other end of the driving push rod motor is also rotatably connected to the side plate through the U-shaped supporting member.

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 circuit breaker, the vacuum switch has the following beneficial effects:

1. when the electrode box is used, the reinforcing rod is pushed to move by driving the 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, automation is realized, and the problem that the electrode box is opened and closed manually in the prior art is solved.

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

3. The sealing cover provided by the utility model can seal one side of the side plate and the bottom plate, so that the device is protected, and meanwhile, the observation window arranged on the sealing cover is sealed, so that the staff can conveniently observe the inside of the sealing cover, and the staff can conveniently overhaul the circuit.

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 the connection among the arc-shaped edge, the guide shaft and the support plate of the vacuum switch with the automatic circuit breaker according to the present invention.

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

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

Fig. 5 is a schematic structural view of the connection between the sealing cover and the driving push rod motor of the vacuum switch with the automatic circuit breaker according to the present invention.

In the figure: the device comprises a side plate 1, an arc-shaped edge 2, a block-shaped 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 supporting plate 13, a fastening bolt 14, a return spring 15, a guide shaft 16, an electrode plate 17, a U-shaped supporting piece 18, a sealing cover 19 and an observation window 20.

Detailed Description

In order to explain in detail possible application scenarios, technical principles, practical embodiments, and the like of the present application, the following detailed description is given with reference to the accompanying drawings in conjunction with the listed embodiments. The embodiments described herein are only used for clearly illustrating the technical solutions of the present application, and therefore are only used as examples, and the scope of the present application is not limited thereby.

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

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, indicating that three relationships may exist, for example, a and/or B, indicating that: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. 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 belongs according to specific situations.

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, voltage leakage protection, password protection, one-key error zero clearing, various pressure switching and the like, can be used for measuring various vacuum degrees, and can be matched with various vacuum pumps for use.

A 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 will automatically cut off the circuit and send a signal to ensure the normal operation of the system. When the pressure in the system is higher or lower than the safety pressure, a pressure sensor in the controller acts immediately to enable a contact in the controller to be connected or disconnected, and at the moment, the equipment stops working; when the pressure in the system returns to the safe pressure range of the equipment, the pressure sensor in the controller is immediately reset, so that the contact in the controller is switched on or off, and the equipment works normally.

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 figure 1, 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 the anticorrosion 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 protective capacities of curb plate 1 and bottom plate 10 to its internal mechanism simultaneously.

And curb plate 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 with the side of curb plate 1 perpendicularly, 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, can connect the wire on fastening bolt 14, the wire is when installing, fastening bolt 14 upwards rotates, and twine the wire on fastening bolt 14's outer wall, twine and rotate fastening bolt 14 after accomplishing, 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 plate 17 is connected to the guide shaft 16 in a sliding manner, the electrode plate 17 and the support plate 13 are arranged in parallel, the reset spring 15 is fixedly connected between the electrode plate 17 and the support plate 13, the reset spring 15 is sleeved on all the guide shafts 16, an anti-corrosion coating is coated on the outer wall of the reset spring 15, the reset spring 15 can be prevented from being corroded by a humid environment, the reset spring 15 is protected, the service life of the reset spring 15 is prolonged, the service life of the whole device is prolonged, when the two electrode plates 17 are under pressure, the two electrode plates 17 move towards the support plate 13, the moving electrode plates 17 extrude the reset spring 15, when the stress is finished, under the elastic action of the reset spring 15, the two electrode plates 17 can be driven to recover to the initial position.

As shown in fig. 3, a reinforcing rod 8 is arranged above a 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 support plates 13, the reinforcing rod 8 is connected to the central positions of the plurality of insulating rods 4, so that a whole body can be formed among the plurality of insulating rods 4, when the plurality of insulating rods 4 are pushed, the insulating rods can move simultaneously, and further adjustment is facilitated, the central position of one side of the reinforcing rod 8 is rotatably connected with a driving push rod motor 9 through a U-shaped support member 18, the other end of the driving push rod motor 9 is also rotatably connected to a side plate 1 through the U-shaped support member 18, when the driving push rod motor 9 is moved in a telescopic manner, the reinforcing rod 8 can be pushed to move in a reciprocating manner, and when the driving push rod motor 9 is moved, both ends of the driving push rod motor 9 rotate in the U-shaped support members 18 at both ends respectively, and then guaranteed the normal clear of regulation, drive push rod motor 9 is connected with PLC through the wire, and PLC passes through the wire and connects with overload protection ware.

As shown in fig. 3, the equal fixedly connected with bulk electrode 3 in top of insulator spindle 4, the equal fixedly connected with wire in one side of bulk electrode 3, but connecting bolt on bulk electrode 3 when installing the wire, rotates the bolt, with the wire winding on the outer wall of bolt, after the wire winding is accomplished, rotates the bolt again, pivoted bolt can press the wire of winding on its outer wall, and then can connect the wire on bulk electrode 3.

Blocky electrode 3 can block between two plate electrodes 17 that are located corresponding position department, the insulating rotation seat 5 of the equal fixedly connected with in bottom of insulator spindle 4, insulating rotation seat 5 rotates the top of connecting at bottom plate 10, drive push rod motor 9 promotes stiffener 8 and removes, the stiffener 8 that removes drives the bottom of insulator spindle 4 and rotates at the top of bottom plate 10, the insulating rotation seat 5 of insulator spindle 4 bottom rotates in U type frame 6 promptly when rotating, and then connect between blocky electrode 3 at steerable insulator spindle 4 top and two plate electrodes 17, and then realize the intercommunication of circuit.

Further say, as shown in fig. 1 and fig. 2, two plate electrodes 17 keep away from the equal fixedly connected with arc limit 2 of one end of curb plate 1, the tip on two arc limits 2 all outwards bends, and structure as an organic whole between arc limit 2 and the plate electrode 17, the stability of connecting between plate electrode 17 and the arc limit 2 has been improved, two arc limits 2 of crooked setting make the tip of two plate electrodes 17 be the opening form, when the one end of bulk electrode 3 removed to 2 one ends in two arc limits, bulk electrode 3 can be by 2 centre grippings in two arc limits, bulk electrode 3 can promote the inner wall on arc limit 2, make bulk electrode 3 can be quick remove to between two plate electrodes 17, and then made things convenient for the quick connection of bulk electrode 3 between two plate electrodes 17.

Further, as shown in fig. 1 and 3, the top of the bottom plate 10 is fixedly connected with a U-shaped frame 6 at equal intervals, the insulating rotating base 5 is connected in the U-shaped frame 6 at the corresponding position through a rotating shaft 7, and the insulating rod 4 can drive the insulating rotating base 5 to rotate inside the U-shaped frame 6 when rotating through the connection of the U-shaped frame 6, so as to ensure that the insulating rotating base 5 rotates stably at the top of the bottom plate 10.

Further, as shown in fig. 1 and 4, a top plate 12 is disposed above the two supporting plates 13, one end of the top plate 12 is fixedly connected to the side plate 1, side protecting plates 11 are symmetrically disposed at the bottom of the top plate 12, the side protecting plates 11 are fixedly connected to the side plate 1, the supporting plate 13 is located between the two side protecting plates 11, the disposed side protecting 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 insulation loading, the side protecting plates 11 and the top plate 12 can protect the two supporting plates 13 located below the side protecting plates 11 and the top plate 12, and the safety of the whole use of the 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, an anti-corrosion coating is arranged on the surface of the sealing cover 19, the surface of the sealing cover 19 can be placed to be corroded, 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 facilitates a worker to overhaul a circuit.

Furthermore, as shown in fig. 1, the observation window 20 is internally and hermetically connected with transparent glass, and the transparent glass can seal one side of the sealing cover 19, and simultaneously facilitates observation of the inside of the sealing cover 19 by a worker, thereby facilitating overhaul of the device by the worker.

Specifically, when the utility model is used, the reinforcing rod 8 is pushed to move by driving the push rod motor 9, so that the insulating rod 4 can be driven to rotate, the rotating insulating rod 4 can drive the block-shaped electrode 3 at the top of the insulating rod to move into the two electrode plates 17, the two electrode plates 17 can stably clamp the block-shaped electrode 3 under the elastic action of the return spring 15, the stable connection of the block-shaped electrode 3 between the two electrode plates 17 is ensured, so that the circuit is switched on, when the push rod motor 9 is driven to move in the opposite direction, the insulating rod 4 can be driven to rotate towards the initial position, so that the block-shaped electrode 3 can be driven to move out of the two electrode plates 17, and the circuit is switched off.

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 above embodiments have been described in the text and drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical solutions which are generated by replacing or modifying the equivalent structure or the equivalent flow according to the contents described in the text and the drawings of the present application, and which are directly or indirectly implemented in other related technical fields, are included in the scope of protection of the present application.

Claims

1. A vacuum switch with an automatic circuit breaker comprises a bottom plate and is characterized in that a side plate is vertically connected to one side of the top of the bottom plate, a plurality of pairs of supporting plates are equidistantly arranged at the upper end of one side, close to the bottom plate, of the side plate, each pair of supporting plates are vertically connected with the side edge of the side plate, a plurality of guide shafts are fixedly connected between the two supporting plates, two electrode plates are further arranged between the two supporting plates, fastening bolts are connected to the tops of the electrode plates, the electrode plates are connected onto the guide shafts in a sliding mode, the electrode plates and the supporting plates are arranged in parallel, return springs are fixedly connected between the electrode plates and the supporting plates, and the return springs are sleeved on all the guide shafts;

a reinforcing rod is arranged above the bottom plate, a plurality of insulating rods are vertically connected with 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 rotatably connected to the center of one side of the reinforcing rod, and the other end of the driving push rod motor is rotatably connected to the side plate;

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

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

4. The vacuum switch with the automatic circuit breaker as claimed in claim 1, wherein a top plate is provided above two of said supporting plates, one end of said top plate is fixedly connected to a side plate, a side protecting plate is symmetrically provided at the bottom of said top plate, said side protecting plate is fixedly connected to the side plate, and said supporting plate is located between the two side protecting plates.

5. The vacuum switch with the automatic circuit breaker according to claim 1, wherein a sealing cover is connected to one side of the side plate and the top of the bottom plate, and the sealing cover is provided with an observation window on a side parallel to the side plate.

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

7. The vacuum switch with automatic circuit breaker according to claim 1, wherein said side plate and said bottom plate are disposed in an L-shape.

8. The vacuum switch with the automatic circuit breaker according to claim 1, wherein the driving push rod motor is rotated at a side center position of the reinforcing bar by a 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, characterized in that said reinforcing bar is made of stainless steel or aluminum alloy.