Pressure relief protection structure of switch cabinet

Abstract

The utility model provides a pressure relief protection structure of a switch cabinet, belongs to the technical field of switch cabinets, and aims to solve the problems that in order to ensure normal operation of pressure relief equipment, regular inspection needs to be carried out on the air tightness and other aspects of the connection position of a pressure relief device, the air leakage detection process is relatively tedious, and regular detection wastes manpower, time and labor. Comprising a switch cabinet; the pressure relief mechanism is mounted at the top of the switch cabinet; the blocking detection mechanism is mounted at the bottom of the pressure relief mechanism; the control mechanism is installed on the surface of the pressure relief mechanism and connected with the blocking detection mechanism. According to the pressure relief device, the rubber inflation sealing ring can be remotely controlled to be inflated and expanded through the control mechanism, the connecting position is sealed, the interior of the outer fixing column is in a sealed state, sealing performance detection of the connecting position can be conveniently completed, and the safety protection effect of the pressure relief device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to switch cabinet technical field, more specifically, especially, it is related to a switch cabinet pressure relief protection structure. BACKGROUND

[0002] Switch cabinet is a kind of electrical equipment, switch cabinet is indispensable as the component part in power system, switch cabinet in the operation process, it can occur once loop short-circuit fault because of short circuit, insulation aging or human error, produce tens of thousands of ampere short-circuit current, instantaneous high-temperature high-pressure gas is formed, easy to cause switch cabinet burst, damage adjacent equipment, even hurt personal safety, therefore, switch cabinet needs to connect special pressure relief device to carry out automatic pressure relief, to ensure that pressure relief equipment is normally operated, the airtightness of pressure relief device connecting place and other aspects need to be checked periodically, leakage detection process is more cumbersome, and, regularly detects, waste manpower, time and effort. UTILITARY MODEL CONTENTS

[0003] To solve the above technical problems, the utility model provides a switch cabinet pressure relief protection structure to solve the problem that the airtightness of pressure relief device connecting place and other aspects need to be checked periodically to ensure that pressure relief equipment is normally operated in the above background art, leakage detection process is more cumbersome, and, regularly detects, waste manpower, time and effort.

[0004] The utility model discloses a switch cabinet pressure relief protection structure, which is achieved by the following specific technical means:

[0005] A switch cabinet pressure relief protection structure, comprising: a switch cabinet, a pressure relief mechanism, a blocking detection mechanism and a control mechanism, the switch cabinet is in the form of a cuboid, the pressure relief mechanism is installed on the top of the switch cabinet, the blocking detection mechanism is installed on the bottom of the pressure relief mechanism, and the control mechanism is installed on the surface of the pressure relief mechanism and connected with the blocking detection mechanism, the blocking detection mechanism comprises a bottom ring and a gas conveying frame, the bottom ring is in the form of a circular ring, and one end of the gas conveying frame is inserted into the bottom ring.

[0006] In at least some embodiments, the switch cabinet comprises a cabinet body and a connecting pipe, and the connecting pipe is installed on the top of the cabinet body.

[0007] In at least some embodiments, the pressure relief mechanism comprises a pressure relief assembly and an outer fixed column, the bottom of the pressure relief assembly is connected with the connecting pipe, the top inner side of the outer fixed column is fixedly connected with the pressure relief assembly, and the bottom of the outer fixed column is fixedly connected with the bottom ring.

[0008] In at least some embodiments, the sealing detection mechanism further comprises a rubber inflatable sealing ring, a lifting blocking ring, a connecting slide rod and an alarm trigger lever device; the rubber inflatable sealing ring is installed on the top of the bottom ring and connected with the gas conveying frame; the rubber inflatable sealing ring can be inflated to assist in sealing the bottom of the outer fixed column; the lifting blocking ring is provided with a sealing rubber ring on the surface and is slidingly installed in the outer fixed column; the connecting slide rod is provided with a spring on the surface and is slidingly inserted into the outer fixed column and fixedly connected with the rubber inflatable sealing ring; the spring can elastically support the lifting blocking ring; and the alarm trigger lever device is fixedly installed in the outer fixed column.

[0009] In at least some embodiments, the control mechanism comprises a support rod, a threaded rotating rod, a lifting push plate, a motor box, a gas cylinder and a pressing rod; the support rod is in an L-shaped structure with a sliding groove in the inside; the support rod is fixedly connected with the pressure relief assembly; the threaded rotating rod is rotatably inserted into the T-shaped sliding groove of the support rod; the lifting push plate is slidingly inserted into the sliding groove of the support rod and threadedly connected with the threaded rotating rod; the threaded rotating rod can control the lifting push plate to slide up and down; the motor box is provided with a motor; the motor in the motor box is connected with the threaded rotating rod; the gas cylinder is fixedly connected with the support rod at the top and connected with the gas conveying frame at the bottom; the pressing rod is fixedly connected with the lifting push plate at the top and slidingly inserted into the gas cylinder at the bottom; the pressing rod and the gas cylinder can assist the rubber inflatable sealing ring in inflation.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The utility model discloses the inside setting has sealing detection mechanism and control mechanism, can be remote through control mechanism control motor box in -motor start after the pressure relief protector runs for a period of time, and the motor fills the gas in the rubber inflatable sealing ring inside in the gas cylinder, and the rubber inflatable sealing ring inflation expands and seals the connecting place, and the sealed state is formed in the outer fixed column inside, if the connecting place appears the air leakage problem, then the lifting blocking ring in the outer fixed column inside will correspondingly slide and trigger the alarm, and the sealing detection of connecting place is automatically completed, improves the safety protection effect of pressure relief device. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the main body shaft side view structure schematic diagram of the utility model.

[0013] Figure 2 It is the main body shaft side view structure schematic diagram of the utility model Figure 1 .

[0014] Figure 3 It is the pressure relief mechanism sectional structure schematic diagram of the utility model.

[0015] Figure 4 It is the sealing detection mechanism sectional structure schematic diagram of the utility model.

[0016] Figure 5 is a control mechanism sectional view structure schematic diagram of the utility model.

[0017] In the figure, the corresponding relationship of component name and drawing number is:

[0018] 1, switch cabinet;101, cabinet body;102, connecting pipe;2, pressure relief mechanism;201, pressure relief assembly;202, outer fixed column;3, blocking detection mechanism;301, bottom ring;302, gas delivery frame;303, rubber inflatable sealing ring;304, lifting blocking ring;305, connecting slide rod;306, alarm trigger lever device;4, control mechanism;401, brace;402, threaded rotating rod;403, lifting push plate;404, motor box;405, air cylinder;406, pressing rod. DETAILED DESCRIPTION

[0019] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.

[0020] Example one:

[0021] As shown in the accompanying Figure 1 to the accompanying Figure 5 :

[0022] The utility model provides a kind of switch cabinet pressure relief protection structure, comprising: switch cabinet 1, pressure relief mechanism 2, blocking detection mechanism 3 and control mechanism 4;Switch cabinet 1 is overall rectangular structure;Pressure relief mechanism 2 is installed in switch cabinet 1 top;Blocking detection mechanism 3 is installed in pressure relief mechanism 2 bottom;Control mechanism 4 is installed in pressure relief mechanism 2 surface and is connected with blocking detection mechanism 3;Blocking detection mechanism 3 includes: bottom ring 301 and gas delivery frame 302;Bottom ring 301 is annular structure;Gas delivery frame 302 one end is inserted to the inside of bottom ring 301.

[0023] As shown in the accompanying Figure 2 , switch cabinet 1 includes: cabinet body 101 and connecting pipe 102;Connecting pipe 102 is installed in cabinet body 101 top.

[0024] As shown in the accompanying Figure 3 , pressure relief mechanism 2 includes: pressure relief assembly 201 and outer fixed column 202;Pressure relief assembly 201 bottom is connected with connecting pipe 102;Outer fixed column 202 top inner side is fixedly connected with pressure relief assembly 201, and outer fixed column 202 bottom is fixedly connected with bottom ring 301.

[0025] As shown in the accompanying Figure 4As shown, the sealing detection mechanism 3 also includes: a rubber inflatable sealing ring 303, a lifting baffle ring 304, a connecting slide rod 305, and an alarm trigger lever 306; the rubber inflatable sealing ring 303 is installed on the top of the bottom ring 301 and is fixedly connected to the air supply frame 302. The rubber inflatable sealing ring 303 can play a role in assisting in sealing the bottom of the outer fixed column 202 when inflated; the lifting baffle ring 304 is provided with a sealing rubber ring on its surface and is slidably installed inside the outer fixed column 202; the connecting slide rod 305 is provided with a spring on its surface and is slidably inserted into the bottom of the outer fixed column 202 and fixedly connected to the rubber inflatable sealing ring 303. The spring can play a role in elastically supporting the lifting baffle ring 304; the alarm trigger lever 306 is fixedly installed inside the outer fixed column 202.

[0026] like Figure 5 As shown, the control mechanism 4 includes: a support rod 401, a threaded rotating rod 402, a lifting push plate 403, a motor housing 404, an air cylinder 405, and a pressing rod 406; the support rod 401 is an L-shaped structure with an internal groove, and its surface is fixedly connected to the pressure relief assembly 201; the top of the threaded rotating rod 402 is rotatably inserted into the T-shaped groove of the support rod 401; one side of the lifting push plate 403 is slidably inserted into the groove of the support rod 401 and threadedly connected to the threaded rotating rod 402. Rotation controls the lifting push plate 403 to move up and down; a motor is installed inside the motor box 404, and the motor inside the motor box 404 is connected to the threaded rotating rod 402; the top of the air cylinder 405 is fixedly connected to the support rod 401, and the bottom of the air cylinder 405 is fixedly connected to the air supply frame 302; the top of the pressing rod 406 is fixedly connected to the lifting push plate 403, and the bottom of the pressing rod 406 is slidably inserted into the air cylinder 405. The pressing rod 406 and the air cylinder 405 can assist in inflating the rubber inflatable sealing ring 303.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In this invention, the pressure relief component 201 is connected to the connecting pipe 102. The connection between the connecting pipe 102 and the pressure relief component 201 is located inside the outer fixed column 202. After the pressure relief component 201 has been running for a period of time, the motor inside the control motor box 404 is started. The motor controls the threaded rotating rod 402. During the rotation of the threaded rotating rod 402, the thread on the surface of the threaded rotating rod 402 controls the sliding of the lifting push plate 403 and drives the pressing rod 406 to press down. The pressing rod 406 pushes the gas inside the air cylinder 405 through the air delivery frame 302 and into the air supply system. Inside the rubber inflatable sealing ring 303, the rubber inflatable sealing ring 303 is inflated and expands. The rubber inflatable sealing ring 303 is located at the bottom of the outer fixed column 202. The rubber inflatable sealing ring 303 expands and fills and seals the connection. The outer fixed column 202 is in a sealed state. If the connection leaks air, the internal gas increases, the lifting stop ring 304 is squeezed and slides downward. The connecting slide rod 305 spring contracts, the lifting stop ring 304 slides upward and contacts the alarm trigger rod 306, completing the detection and alarm.

[0029] The following points should be noted in this article:

[0030] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0031] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A pressure relief protection structure for a switchgear, comprising: The switch cabinet (1), pressure relief mechanism (2), sealing detection mechanism (3), and control mechanism (4) are provided. The switch cabinet (1) is a rectangular parallelepiped structure. The pressure relief mechanism (2) is installed on the top of the switch cabinet (1). The sealing detection mechanism (3) is installed at the bottom of the pressure relief mechanism (2). The control mechanism (4) is installed on the surface of the pressure relief mechanism (2) and connected to the sealing detection mechanism (3). The sealing detection mechanism (3) includes a bottom ring (301) and an air supply frame (302). The bottom ring (301) is a circular ring structure. One end of the air supply frame (302) is inserted into the bottom ring (301).

2. The switchgear pressure relief protection structure according to claim 1, characterized in that: The switch cabinet (1) includes: a cabinet body (101) and a connecting pipe (102); the connecting pipe (102) is installed on the top of the cabinet body (101).

3. The switchgear pressure relief protection structure according to claim 2, characterized in that: The pressure relief mechanism (2) includes: a pressure relief component (201) and an outer fixed column (202); the bottom of the pressure relief component (201) is connected to the connecting pipe (102); the top inner side of the outer fixed column (202) is fixedly connected to the pressure relief component (201), and the bottom of the outer fixed column (202) is fixedly connected to the bottom ring (301).

4. The switchgear pressure relief protection structure according to claim 3, characterized in that: The sealing detection mechanism (3) further includes: a rubber inflatable sealing ring (303), a lifting ring (304), a connecting slide rod (305), and an alarm trigger rod (306); the rubber inflatable sealing ring (303) is installed on the top of the bottom ring (301) and is fixedly connected to the air supply frame (302); the lifting ring (304) is provided with a sealing rubber ring on its surface and is slidably installed inside the outer fixed column (202); the connecting slide rod (305) is provided with a spring on its surface and is slidably inserted into the outer fixed column (202) at its bottom and is fixedly connected to the rubber inflatable sealing ring (303); the alarm trigger rod (306) is fixedly installed inside the outer fixed column (202).

5. The switchgear pressure relief protection structure according to claim 3, characterized in that: The control mechanism (4) includes: a support rod (401), a threaded rotating rod (402), a lifting push plate (403), a motor box (404), an air cylinder (405), and a pressing rod (406); the surface of the support rod (401) is fixedly connected to the pressure relief assembly (201); the top of the threaded rotating rod (402) is rotatably inserted into the T-shaped groove of the support rod (401); one side of the lifting push plate (403) is slidably inserted into the groove of the support rod (401) and connected to the threaded rotating rod (402). The threaded rotating rod (402) is threaded; a motor is installed inside the motor box (404), and the motor inside the motor box (404) is connected to the threaded rotating rod (402); the top of the air cylinder (405) is fixedly connected to the support rod (401), and the bottom of the air cylinder (405) is fixedly connected to the air delivery frame (302); the top of the pressing rod (406) is fixedly connected to the lifting push plate (403), and the bottom of the pressing rod (406) is slidably inserted into the air cylinder (405).

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