An observable solid insulation cabinet

Abstract

The present invention discloses an observable solid insulation cabinet, comprising a cabinet, a sealed pole assembly arranged in the cabinet, and an operating assembly penetrating the cabinet for connecting or disconnecting the sealed pole assembly; the cabinet is provided with an inspection window for observing the operating assembly; one end of the sealed pole assembly is provided with an inlet and outlet bushing for connecting an external circuit, and the other end of the sealed pole assembly is provided with a conductive joint for connecting the operating assembly, and the inlet and outlet bushings extend out of the end of the cabinet away from the ground; the operating assembly comprises a driving assembly arranged at the end of the cabinet away from the ground, a transparent insulating tube sealingly connecting the driving assembly and the conductive joint, and a piston head slidably arranged in the transparent insulating tube, and the driving assembly is used to drive the piston head to slide along the inner hole wall of the transparent insulating tube to connect or disconnect the conductive joint. The matching state of the piston head and the conductive joint can be directly observed by naked eyes through the transparent insulating tube, thereby avoiding the problem of operator's misoperation.

Description

Technical Field

[0001] The invention relates to the field of electric power equipment, and in particular to an observable solid insulation cabinet. Background Art

[0002] In the current operation of the isolating switch of the solid insulated ring network cabinet, when the operator is opening and closing the switch, the mechanical rotation of the operating mechanism drives the analog indicator to complete the opening and closing; the existing operating mechanism has many parts, complex structure, and high manufacturing cost, which leads to an increase in the cost of the solid insulated ring network cabinet; at the same time, the operating mechanism is used to open and close the switch, and the closing and opening state of the isolating switch cannot be directly observed with the naked eye. In actual work, the analog indicator will lose the function of analog indication due to the failure of the isolating switch operating mechanism, resulting in the isolating switch pointer not being consistent with the actual situation after the operation, for example, the indicator shows that the switch is in the opening state, but in fact the switch is in the closing state; for another example, the isolating moving contact and the isolating static contact of the switch are not completely separated or the separation distance is not large enough, and the operator cannot directly observe the opening and closing state of the switch, which is easy to think that the switch has been operated in place, resulting in the situation of live operation of the incoming and outgoing cables, which brings serious harm to the lives of the operating and maintenance personnel. Therefore, an observable solid insulated cabinet is urgently needed. Summary of the invention

[0003] The main purpose of the present invention is to provide an observable solid insulation cabinet to solve the problem that the closing and opening states of the isolating switch cannot be directly observed in the existing solid insulation ring network cabinet, thereby causing erroneous operation.

[0004] To achieve the above-mentioned purpose, the observable solid insulation cabinet proposed in the present invention comprises a cabinet body, a sealed pole assembly arranged in the cabinet body, and an operating assembly that penetrates into the cabinet body from outside the cabinet body for connecting or disconnecting the sealed pole assembly; the cabinet body is provided with an inspection window for the operating assembly to pass through so as to observe the operating assembly; one end of the sealed pole assembly is provided with an inlet and outlet bushing for connecting to an external circuit, and the other end of the sealed pole assembly is provided with a conductive connector for connecting to the operating assembly, and the inlet and outlet bushings extend out of the end of the cabinet away from the ground; the operating assembly comprises a driving assembly arranged at the end of the cabinet away from the ground, a transparent insulating tube that seals and connects the driving assembly and the conductive connector, and a piston head slidably arranged in the transparent insulating tube, and the driving assembly is used to drive the piston head to slide along the inner hole wall of the transparent insulating tube to connect or disconnect the conductive connector.

[0005] Preferably, the cabinet includes a cabinet body, a horizontal support plate arranged in the cabinet body, and a mounting platform arranged parallel to the ground on the outside of the cabinet body; the horizontal support plate is used to install the sealed pole assembly, and the mounting platform is used to install the drive assembly.

[0006] Preferably, the sealed pole assembly comprises a sealed pole box, a vacuum arc extinguishing chamber and a vacuum isolating switch, the sealed pole box forms a sealed inner cavity, a first inlet and outlet bushing connected to the sealed inner cavity is provided at the end of the sealed pole box facing away from the ground, a second inlet and outlet bushing connected to the sealed inner cavity is provided at the end of the sealed pole box close to the ground, and a first conductive joint and a second conductive joint are arranged in parallel and spaced apart on the side of the sealed pole box facing the operating component; the vacuum arc extinguishing chamber is arranged in the sealed inner cavity, the static contact of the vacuum arc extinguishing chamber is connected to the first inlet and outlet bushing, the moving contact of the vacuum arc extinguishing chamber is connected to the first conductive joint, the static end of the vacuum isolating switch is connected to the second inlet and outlet bushing, the moving end of the vacuum isolating switch is connected to the second conductive joint, and the moving end of the vacuum isolating switch is connected to the moving contact of the vacuum arc extinguishing chamber.

[0007] Preferably, the sealed pole box further comprises an experimental terminal arranged at the top of the sealed pole box and spaced apart in parallel with the vacuum isolating switch, the experimental terminal being connected to the moving end of the vacuum isolating switch, and a test connector of the experimental terminal extending out of the top of the sealed pole box.

[0008] Preferably, the driving assembly comprises a cylinder, a positive and negative pressure pump and an air nozzle which are connected in sequence, the interior of the cylinder is filled with an inert gas, and the positive and negative pressure pump is used for the air nozzle to inhale or discharge the inert gas in the cylinder.

[0009] Preferably, the transparent insulating tube includes a first tube body and a second tube body coaxially connected to one end of the first tube body, the inner hole diameter of the second tube body is larger than the inner hole diameter of the first tube body, so as to form a limiting step at the connection position to limit the movement of the piston head; the first tube body is used to seal and connect the gas nozzle, and the second tube body is used to seal and sleeve the fixed end of the conductive joint so that the telescopic end of the conductive joint is sleeved in the second tube body.

[0010] Preferably, the piston head includes a piston column coaxially sleeved on the second tube body, a first elastic head arranged at one end of the piston column, and a second elastic head arranged at the other end of the piston column; the outer wall of the piston column is in close contact with the inner hole wall of the second tube body to form a sealed chamber connected to the positive and negative pressure pumps.

[0011] Preferably, the driving assembly further comprises a pressure gauge connected to the transparent insulating tube, and the pressure gauge is arranged between the driving assembly and the piston head.

[0012] Preferably, the operating assembly further comprises a spotlight arranged at an end of the cabinet facing away from the ground.

[0013] Preferably, a fluorescent light emitter is embedded in the piston head.

[0014] In the technical solution of the present invention, the operating assembly uses the driving assembly to drive the piston head to slide along the inner hole wall of the transparent insulating tube to connect or disconnect the conductive joint. The matching state of the piston head and the conductive joint can be directly observed by naked eyes through the transparent insulating tube, so as to directly observe the closing and opening states of the disconnector, thereby avoiding the problem of operator's misoperation. At the same time, compared with the existing operating mechanism, the operating assembly has a simple structure and strong practicality, which can greatly reduce the cost of the solid insulation cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Front view of .

[0018] Figure 3 for Figure 2 AA section view in.

[0019] Figure 4 It is a transverse cross-sectional view of the piston head installed in the transparent insulating tube.

[0020] Figure 5 It is a structural schematic diagram of the sealed pole assembly installed on the horizontal support plate.

[0021] Description of Figure Numbers:

[0022]

[0023]

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The invention provides an observable solid insulation cabinet.

[0031] Combination Figures 1 to 5As shown, the observable solid insulation cabinet disclosed in this embodiment includes a cabinet 1, a sealed pole assembly 2 arranged in the cabinet 1, and an operating assembly 3 that penetrates into the cabinet 1 from outside the cabinet 1 for connecting or disconnecting the sealed pole assembly 2; the cabinet 1 is provided with an inspection window 100 for the operating assembly 3 to pass through for observing the operating assembly 3; one end of the sealed pole assembly 2 is provided with an inlet and outlet bushing 4 for connecting to an external circuit, and the other end of the sealed pole assembly 2 is provided with a conductive connector 5 for connecting the operating assembly 3, and the inlet and outlet bushing 4 extends out of the end of the cabinet 1 away from the ground; the operating assembly 3 includes a driving assembly 31 arranged at the end of the cabinet 1 away from the ground, a transparent insulating tube 32 that seals and connects the driving assembly 31 and the conductive connector 5, and a piston head 33 slidably arranged in the transparent insulating tube 32, and the driving assembly 31 is used to drive the piston head 33 to slide along the inner hole wall of the transparent insulating tube 32 to connect or disconnect the conductive connector 5.

[0032] In the technical solution of the present invention, the operating component 3 uses the driving component 31 to drive the piston head 33 to slide along the inner hole wall of the transparent insulating tube 32 to connect or disconnect the conductive connector 5. The matching state of the piston head 33 and the conductive connector 5 can be directly observed by naked eyes through the transparent insulating tube 32, so as to directly observe the closing and opening states of the disconnector, thereby avoiding the problem of operator's misoperation. At the same time, compared with the existing operating mechanism, the operating component 3 has a simple structure and strong practicality, which can greatly reduce the cost of the solid insulation cabinet.

[0033] Preferably, the cabinet 1 includes a cabinet body 11, a horizontal support plate 12 arranged in the cabinet body 11, and an installation platform 13 arranged parallel to the ground on the outside of the cabinet body 11; the horizontal support plate 12 is used to install the sealed pole assembly 2, and the installation platform 13 is used to install the drive assembly 3.

[0034] Specifically, a vertical support plate 14 is disposed between the horizontal support plate 12 and the bottom of the cabinet body 11 , and the horizontal support plate 12 and the vertical support plate 14 are both detachably connected to the cabinet body 11 via fasteners.

[0035] Furthermore, the installation platform 13 is fixedly mounted on a side of the cabinet body 11 facing the operator, and the inspection window 100 is disposed between the installation platform 13 and the top surface of the cabinet body 1 .

[0036] Preferably, the sealed pole assembly 2 includes a sealed pole box 21, a vacuum interrupter 22 and a vacuum isolating switch 23, the sealed pole box 21 forms a sealed inner cavity 200, the sealed pole box 21 is provided with a first inlet and outlet bushing 211 connected to the sealed inner cavity 200 at one end away from the ground, the sealed pole box 21 is provided with a second inlet and outlet bushing 212 connected to the sealed inner cavity 200 at one end close to the ground, and the sealed pole box 21 is provided with a first conductive wire in parallel and spaced apart on one side facing the operating component 3. The vacuum interrupter 22 is arranged in the sealed inner cavity 200, the static contact of the vacuum interrupter 22 is connected to the first incoming and outgoing line bushing 211, the moving contact of the vacuum interrupter 22 is connected to the first conductive joint 213, the static end of the vacuum isolating switch 23 is connected to the second incoming and outgoing line bushing 212, the moving end of the vacuum isolating switch 23 is connected to the second conductive joint 214, and the moving end of the vacuum isolating switch 23 is connected to the moving contact of the vacuum interrupter 22.

[0037] Specifically, the sealed pole assembly 2 has three groups that are arranged in parallel and at intervals.

[0038] Preferably, the sealed pole box 21 also includes an experimental terminal 24 arranged on the top of the sealed pole box 21 and spaced apart from and parallel to the vacuum isolating switch 23, the experimental terminal 24 is connected to the moving end of the vacuum isolating switch 23, and the test connector of the experimental terminal 24 extends out of the top of the sealed pole box 21.

[0039] Specifically, the operating components 3 have two groups, which are respectively connected to the first conductive connector 213 and the second conductive connector 214 .

[0040] Preferably, the driving group 31 includes a cylinder 311 , a positive and negative pressure pump 312 and an air nozzle 313 connected in sequence, the cylinder 311 is filled with inert gas, and the positive and negative pressure pump 312 is used for the air nozzle 313 to inhale or discharge the inert gas in the cylinder 313 .

[0041] Specifically, the inert gas can prevent the piston head 33 from contacting the conductive joint 5 and causing sparks.

[0042] Preferably, the transparent insulating tube 32 includes a first tube body 321 and a second tube body 322 coaxially connected to one end of the first tube body 321, the inner hole diameter of the second tube body 322 is larger than the inner hole diameter of the first tube body 321, so as to form a limiting step at the connection position to limit the movement of the piston head 33; the first tube body 321 is used to seal and connect the gas nozzle 313, and the second tube body 322 is used to seal and sleeve the fixed end of the conductive connector 5 so that the telescopic end of the conductive connector 5 is sleeved in the second tube body 322.

[0043] Specifically, the piston head 33 approaches and presses the conductive joint 5 to complete the closing of the switch, and the piston head 33 moves away from the conductive joint 5 to complete the opening of the switch.

[0044] Preferably, the piston head 33 includes a piston column 331 coaxially sleeved on the second tube body 322, a first elastic head 332 arranged at one end of the piston column 331, and a second elastic head 333 arranged at the other end of the piston column 31; the outer wall of the piston column 331 is in close contact with the inner hole wall of the second tube body 322 to form a sealed chamber 300 connected to the positive and negative pressure pumps 312.

[0045] Specifically, the inner hole wall of the transparent insulating tube 32 is coated with insulating lubricating liquid so that the piston rod 331 can slide along the second tube body 322 .

[0046] Preferably, the driving assembly 31 further includes a pressure gauge 314 connected to the transparent insulating tube 32 , and the pressure gauge 314 is disposed between the driving assembly 31 and the piston head 33 .

[0047] Specifically, the pressure gauge 314 is connected to the sealed chamber 300 to monitor the pressure in the sealed chamber 300 in real time.

[0048] Preferably, the operating assembly 3 further comprises a spotlight 34 arranged at an end of the cabinet 1 facing away from the ground.

[0049] Specifically, the spotlight 34 is electrically connected to an external power source to illuminate the operating component 3 at night to observe the closing and opening states of the disconnector.

[0050] Preferably, a fluorescent light emitter 334 is embedded in the piston head 33 .

[0051] Specifically, the fluorescent light emitter 334 is used to provide emergency lighting in case of a power outage of the external power supply.

[0052] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the concept of the present utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An observable solid insulation cabinet, characterized in that: It comprises a cabinet, a sealed pole assembly arranged in the cabinet, and an operating assembly inserted into the cabinet from outside the cabinet for connecting or disconnecting the sealed pole assembly; the cabinet is provided with an inspection window for the operating assembly to pass through for observing the operating assembly; one end of the sealed pole assembly is provided with an inlet and outlet bushing for connecting to an external circuit, and the other end of the sealed pole assembly is provided with a conductive joint for connecting to the operating assembly, and the inlet and outlet bushings extend out of the end of the cabinet away from the ground; the operating assembly comprises a driving assembly arranged at the end of the cabinet away from the ground, a transparent insulating tube sealingly connecting the driving assembly and the conductive joint, and a piston head slidably arranged in the transparent insulating tube, and the driving assembly is used to drive the piston head to slide along the inner hole wall of the transparent insulating tube to connect or disconnect the conductive joint; The cabinet includes a cabinet body, a horizontal support plate arranged in the cabinet body, and a mounting platform arranged parallel to the ground outside the cabinet body; the horizontal support plate is used to install the sealed pole assembly, and the mounting platform is used to install the drive assembly; The driving assembly comprises a cylinder, a positive and negative pressure pump and a gas nozzle which are connected in sequence, the cylinder is filled with inert gas, and the positive and negative pressure pump is used for the gas nozzle to inhale or discharge the inert gas in the cylinder; The transparent insulating tube comprises a first tube body and a second tube body coaxially connected to one end of the first tube body, wherein the inner hole diameter of the second tube body is larger than the inner hole diameter of the first tube body, so as to form a limiting step at the connection position to limit the movement of the piston head; the first tube body is used for sealingly connecting the gas nozzle, and the second tube body is used for sealingly inserting the fixed end of the conductive joint, so that the telescopic end of the conductive joint is sleeved in the second tube body; The piston head comprises a piston column coaxially sleeved on the second tube body, a first elastic head arranged at one end of the piston column, and a second elastic head arranged at the other end of the piston column; the outer wall of the piston column is in close contact with the inner hole wall of the second tube body to form a sealed chamber connected to the positive and negative pressure pumps; The driving assembly further comprises a pressure gauge connected to the transparent insulating tube, and the pressure gauge is arranged between the driving assembly and the piston head; The operating assembly further comprises a spotlight disposed at an end of the cabinet away from the ground; The piston head is embedded with a fluorescent light emitter; A vertical support plate is provided between the horizontal support plate and the bottom of the cabinet body, and the horizontal support plate and the vertical support plate are both detachably connected to the cabinet body via fasteners; The installation platform is fixedly arranged on a side of the cabinet body facing the operator, and the inspection window is arranged between the installation platform and the top surface of the cabinet body.

2. The observable solid insulation cabinet according to claim 1, characterized in that The sealed pole assembly includes a sealed pole box, a vacuum arc extinguishing chamber and a vacuum isolating switch, wherein the sealed pole box is formed with a sealed inner cavity, a first inlet and outlet bushing connected to the sealed inner cavity is provided at one end of the sealed pole box facing away from the ground, a second inlet and outlet bushing connected to the sealed inner cavity is provided at one end of the sealed pole box close to the ground, and a first conductive joint and a second conductive joint are arranged in parallel and at intervals on one side of the sealed pole box facing the operating component; the vacuum arc extinguishing chamber is arranged in the sealed inner cavity, a static contact of the vacuum arc extinguishing chamber is connected to the first inlet and outlet bushing, a moving contact of the vacuum arc extinguishing chamber is connected to the first conductive joint, a static end of the vacuum isolating switch is connected to the second inlet and outlet bushing, a moving end of the vacuum isolating switch is connected to the second conductive joint, and a moving end of the vacuum isolating switch is connected to the moving contact of the vacuum arc extinguishing chamber.

3. The observable solid insulation cabinet according to claim 2, characterized in that: The sealed pole box also includes an experimental terminal arranged on the top of the sealed pole box and spaced apart from and parallel to the vacuum isolating switch, the experimental terminal is connected to the moving end of the vacuum isolating switch, and a test connector of the experimental terminal extends out of the top of the sealed pole box.

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