Side deflation pressure release device

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a side deflation pressure release device which comprises a main shell and a deflation mechanism. After an operator installs equipment on a used platform through a connecting piece, the cavity continues to be used for guiding out the pressure in the platform through the air leakage mechanism in the overhauling process, too large pressure can be discharged through the air leakage opening in the main shell, meanwhile, warning action is generated to attract maintenance personnel to conduct overhauling, and the device has good practicability and economical efficiency and is suitable for popularization and application. And popularization and use of equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a side-venting pressure release device. Background Art

[0002] The pressure relief device, referred to as GCRD, is mainly used for pressure release, fault monitoring and indication when the oil tank of distribution transformers, capacitors, reactors and other equipment is overpressured. In actual use, the change of pressure in the oil tank is used to judge the internal use environment with high accuracy.

[0003] Due to the operational requirements of the pressure vessel, direct contact with construction personnel must be avoided during the exhaust process. In the existing construction operation environment, the operation is basically carried out at high altitude, and the pressure in the tank cannot be monitored in real time. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model aims to provide a side-venting pressure release device that monitors the pressure in the oil tank in real time;

[0005] The technical solution adopted by the utility model is: a side-release pressure release device, comprising

[0006] A main shell, wherein a main cavity is provided in the middle of the main shell, a main connecting block is provided at one end of the main shell, the main connecting block passes into the main cavity and is fixedly connected to the flared end of the main shell, a ventilation cavity is provided below the main connecting block, a movable buckle bowl is provided in the ventilation cavity, a movable buckle groove is provided in the middle of the movable buckle bowl, the movable buckle groove is buckled into and slidably connected to the main connecting block, a second ventilation cavity is provided in the middle of the main connecting block, the second ventilation cavity passes through the ventilation cavity and the inner cavity of the movable buckle groove, and an exhaust piece is provided in the middle of the main connecting block.

[0007] In one embodiment, a plurality of air leakage ports are provided at the connection between the main connection block and the main shell.

[0008] In one embodiment, a deflation mechanism is provided in the middle of the main connecting block, and the deflation mechanism includes a trapezoidal annular groove, and the trapezoidal annular groove is provided on one side of the main connecting block close to the main cavity. A sealing gasket is provided in the trapezoidal annular groove, and one end of the sealing gasket is fitted in the inner cavity of the movable buckle groove. A warning piece is also provided on the main connecting block.

[0009] In one embodiment, the warning member includes a fixed column, which is arranged on the side of the movable buckle bowl away from the second air permeable cavity, and an annular buckle groove is provided in the middle of the fixed column. One side of the fixed column passes through and is slidably connected to the main shell in the main cavity.

[0010] In one embodiment, the main shell is also provided with a plurality of limit members, the limit members include a connecting nut, a plurality of fixed cavities are provided on the circumferential side of the top end of the main shell, the fixed cavities pass through the main shell to the center of the circumference, the connecting nut is passed into and rotatably connected to the fixed cavity, a support slider is provided on one side of the connecting nut, the support slider is passed into and slidably connected to the fixed cavity, one end of the support slider is fitted into the fixed column, and a fixing spring is provided between the support slider and the connecting nut.

[0011] In one embodiment, the exhaust member includes a pulling block, a conical cavity is provided on the peripheral side of the main connecting block, the conical mouth end of the conical cavity passes through the second air permeable cavity, a fixed slider is provided at the end of the conical cavity away from the second air permeable cavity, the fixed slider is fixedly connected to the main connecting block, the pulling block passes through and is slidably connected to the fixed slider and is placed in the conical cavity, a sealing ring is provided at the end of the pulling block close to the second air permeable cavity, the sealing ring fits the gap between the pulling block and the conical mouth of the conical cavity, and a thrust spring penetrated by the pulling block is provided between the end of the pulling block close to the second air permeable cavity and the fixed slider.

[0012] In one embodiment, the deflation mechanism also includes a movable part, which includes a main connecting rod, one end of the main connecting rod is fixedly connected to the center of the movable buckle bowl, and the other end of the main connecting rod passes through the second air permeable cavity and the ventilation cavity. A pressure rod block is provided at the end of the main connecting rod away from the movable buckle bowl, and the pressure rod block is arranged in the ventilation cavity. A reset spring penetrated by the main connecting rod is provided between the pressure rod block and the main connecting block, and both ends of the reset spring are fixedly connected to the pressure rod block and the main connecting block.

[0013] In one embodiment, a fixing nut is provided on a side of the main connection block away from the main cavity, and the fixing nut is used to connect equipment.

[0014] In one embodiment, the outer periphery of the fixing column is painted with a warning color.

[0015] The beneficial effects of the utility model are as follows: the utility model is a side-venting pressure release device for real-time monitoring of the pressure in the oil tank, and the specific implementation is as follows:

[0016] The operator fixes the equipment to the use platform through the fixing nut, and several connecting washers can be added in the process to seal and prevent air leakage; in the subsequent maintenance process, the pulling block is pulled outward to expand so that the sealing ring is separated from the tapered groove of the conical cavity, and the gas flows into the second air-permeable cavity through the vent cavity and then continues to flow to the conical cavity until it is discharged from the gap between the fixed slider and the pulling block to complete the pressure relief, and then the thrust of the thrust spring on the pulling block is used to decompress the sealing ring to the tapered groove of the conical cavity for sealing;

[0017] Due to the timeliness of internal pressure changes, when the pressure exceeds a certain range, the warning function is triggered: the gas pushes the pressure rod block upward through the ventilation cavity and flows into the second ventilation cavity, and then continues to flow into the movable buckle groove. The main connecting rod pushes the movable buckle bowl to expand the gap of the movable buckle groove, moving the movable buckle bowl away from the main connecting block, and then continues to push the fixed column upward until the annular buckle groove slides to the side of the supporting slider. The supporting slider is pushed into the annular buckle groove by the thrust of the fixed spring, and then the movable buckle bowl is completely separated from the main connecting block, and the gas also flows into the main cavity and flows out from the vent. The warning color on the surface of the fixed column also assists the inspection personnel in patrol.

[0018] The device has a simple structure, monitors the pressure in the oil tank in real time, has good practicality and economy, and is beneficial to the operation and use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is the second three-dimensional structural schematic diagram of the utility model;

[0022] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0023] Figure 4 It is the second cross-sectional three-dimensional structural schematic diagram of the utility model;

[0024] Figure 5 It is the third cross-sectional three-dimensional structural schematic diagram of the utility model.

[0025] Description of the drawings: 1. Main shell; 12. Main connecting block; 121. Trapezoidal annular groove; 122. Sealing gasket; 13. Air vent; 14. Main cavity; 15. Fixed cavity; 2. Air venting mechanism; 212. Conical cavity; 214. Second breathable cavity; 22. Pulling block; 221. Sealing ring; 23. Fixed slider; 24. Thrust spring; 3. Connecting piece; 303. Ventilation cavity; 33. Fixed nut; 41. Fixed column; 411. Annular buckle groove; 43. Movable buckle bowl; 431. Movable buckle groove; 44. Connecting nut; 45. Support slider; 46. Fixed spring; 47. Main connecting rod; 48. Pressure rod block; 49. Reset spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0028] Combine the following Figure 1-5 The specific implementation of the utility model is described, a side deflation pressure release device, comprising:

[0029] Reference Figure 1 , 2 , as shown, the main shell 1 is a cup-shaped structure, a main cavity 14 is provided in the middle of the main shell 1, two sets of limiters are also provided at the top of the main shell 1, a main connecting block 12 is provided at one end of the main shell 1 away from the limiter, the main connecting block 12 is a raised disc-shaped structure, the main connecting block 12 passes into the main cavity 14 and is fixedly connected to the expanded end of the main shell 1, and a plurality of air vents 13 are provided at the connection between the main connecting block 12 and the main shell 1; a vent cavity 303 is provided below the main connecting block 12, and a movable buckle bowl 43 is provided in the vent cavity 303, and the movable buckle A movable buckle groove 431 is provided in the middle of the bowl 43, and the movable buckle groove 431 is buckled into and slidably connected to the main connection block 12. The movable buckle groove 431 is buckled into and slidably connected to the protrusion of the main connection block 12. A fixed column 41 is provided on the side of the movable buckle bowl 43 away from the main connection block 12. An annular buckle groove 411 is provided in the middle of the fixed column 41. The side of the fixed column 41 close to the limiter penetrates and is slidably connected to the center of the main shell 1. The outer periphery of the fixed column 41 is painted with a warning color. Specifically, the warning color is used to highlight the fixed column 41, and can be replaced by the commonly used red color;

[0030] Advantageously, the limiting member includes a connecting nut 44, and a plurality of fixed cavities 15 are provided on the circumferential side of the top end of the main shell 1. The fixed cavity 15 passes through the main shell 1 to the center of the circumference. The connecting nut 44 is passed into and rotatably connected to the fixed cavity 15. A supporting slider 45 is provided on the side of the connecting nut 44 close to the fixed column 41. The supporting slider 45 is passed into and slidably connected to the fixed cavity 15. One end of the supporting slider 45 is attached to the fixed column 41, and a fixing spring 46 is provided between the supporting slider 45 and the connecting nut 44.

[0031] Reference Figure 3 As shown, advantageously, a trapezoidal annular groove 121 is provided on one side of the main connecting block 12 close to the movable buckle bowl 43, a sealing gasket 122 is provided in the trapezoidal annular groove 121, and one end of the sealing gasket 122 away from the trapezoidal annular groove 121 fits into the inner cavity of the movable buckle groove 431.

[0032] In practice, since the platform used usually contains grease-like liquid inside, during the process of exhaust and pressure reduction, tiny oil droplets are often driven into the gap between the movable buckle groove 431 and the main connecting block 12, forming adhesion, which affects the accuracy of pressure judgment for the next use. By setting a sealing ring 221, a gap is left between the two to avoid contact and adhesion between them.

[0033] Reference Figure 5 As shown, a second air permeable cavity 214 is provided in the middle of the main connecting block 12, and the second air permeable cavity 214 passes through the ventilation cavity 303 and the inner cavity of the movable buckle groove 431. An exhaust member is provided on the main connecting block 12, and the exhaust member includes a pulling block 22. A conical cavity 212 is provided on the peripheral side of the main connecting block 12, and the conical end of the conical cavity 212 passes through the second air permeable cavity 214. A fixed slider 23 is provided at one end of the conical cavity 212 away from the second air permeable cavity 214. The fixed slider 23 is fixedly connected to the main connecting block 12, and the pulling block 22 passes through and is slidably connected to the fixed slider 23 and is placed in the conical cavity 212. A sealing ring 221 is provided at one end of the pulling block 22 close to the second air permeable cavity 214, and the sealing ring 221 fits the conical mouth gap between the pulling block 22 and the conical cavity 212. A thrust spring 24 penetrated by the pulling block 22 is provided between one end of the pulling block 22 close to the second air permeable cavity 214 and the fixed slider 23.

[0034] In practice, the gas pushes the pressure rod block 48 to move upward through the ventilation cavity 303 and flows into the second ventilation cavity 214, and then continues to flow into the main cavity 14. The main connecting rod 47 pushes the movable buckle bowl 43 to expand the gap of the movable buckle groove 431, moving the movable buckle bowl 43 away from the main connecting block 12, and then continues to push the fixed column 41 to move upward until the annular buckle groove 411 slides to the side of the supporting slider 45. The supporting slider 45 is pushed into the annular buckle groove 411 by the thrust of the fixing spring 46, and then the movable buckle bowl 43 is completely separated from the main connecting block 12, and the gas also flows into the main cavity 14 and flows out from the vent 13.

[0035] Reference Figure 4As shown, advantageously, the deflation mechanism 2 also includes a movable part, which includes a main connecting rod 47, one end of which is fixedly connected to the center of the movable buckle bowl 43, and the other end of the main connecting rod 47 passes through the second air permeable cavity 214 and the ventilation cavity 303. A pressure rod block 48 is provided at one end of the main connecting rod 47 away from the movable buckle bowl 43, and the pressure rod block 48 is arranged in the ventilation cavity 303. A reset spring 49 penetrated by the main connecting rod 47 is provided between the pressure rod block 48 and the main connecting block 12, and both ends of the reset spring 49 are fixedly connected to the pressure rod block 48 and the main connecting block 12.

[0036] Advantageously, a fixing nut 33 is provided on one side of the main connection block 12 away from the main cavity 14 , and the fixing nut 33 is used to connect equipment. The specific implementation method may be determined according to the situation.

[0037] Working principle of this utility model:

[0038] The operator fixes the device to the use platform through the fixing nut 33, and several connecting washers 32 can be added in the process to seal and prevent air leakage; in the subsequent maintenance process, the pulling block 22 is pulled outward to expand, so that the sealing ring 221 is separated from the tapered groove of the tapered cavity 212, and the gas flows into the second air-permeable cavity 214 through the vent cavity 303 and then continues to flow to the tapered cavity 212 until it is discharged from the gap between the fixed slider 23 and the pulling block 22, completing the pressure relief, and then the thrust of the thrust spring 24 on the pulling block 22 is used to decompress the sealing ring 221 to the tapered groove of the tapered cavity 212 for sealing;

[0039] Due to the timeliness of internal pressure changes, when the pressure exceeds a certain range, the warning function is triggered: the gas pushes the pressure rod block 48 to move upward through the ventilation cavity 303 and flows into the second ventilation cavity 214, and then continues to flow into the movable buckle groove 431. The main connecting rod 47 pushes the movable buckle bowl 43 to expand the gap of the movable buckle groove 431, and moves the movable buckle bowl 43 away from the main connecting block 12, and then continues to push the fixed column 41 to move upward until the annular buckle groove 411 slides to the side of the supporting slider 45. The supporting slider 45 is pushed into the annular buckle groove 411 by the thrust of the fixed spring 46, and then the movable buckle bowl 43 is completely separated from the main connecting block 12, and the gas also flows into the main cavity 14 and flows out from the vent 13. The warning color on the surface of the fixed column 41 also assists the inspection personnel in patrolling.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A side-release pressure release device, characterized in that: include A main shell (1), wherein a main cavity (14) is provided in the middle of the main shell (1), a main connecting block (12) is provided at one end of the main shell (1), a ventilation cavity (303) is provided below the main connecting block (12), a movable buckle bowl (43) is provided in the ventilation cavity (303), a movable buckle groove (431) is provided in the middle of the movable buckle bowl (43), a second ventilation cavity (214) is provided in the middle of the main connecting block (12), and the second ventilation cavity (214) is provided in the middle of the main connecting block (12). The two air permeable cavities (214) penetrate the air vent cavity (303) and the inner cavity of the movable buckle groove (431); a conical cavity (212) is provided on the peripheral side of the main connecting block (12); the conical mouth end of the conical cavity (212) penetrates the second air permeable cavity (214); a pulling block (22) is provided in the conical cavity (212); and a sealing ring (221) is provided at one end of the pulling block (22) close to the second air permeable cavity (214).

2. The side-release pressure release device according to claim 1, characterized in that: A plurality of air leakage ports (13) are provided at the connection between the main connection block (12) and the main housing (1).

3. The side-release pressure release device according to claim 1, characterized in that: A degassing mechanism (2) is provided in the middle of the main connection block (12), the degassing mechanism (2) comprising a trapezoidal annular groove (121), the trapezoidal annular groove (121) being provided on one side of the main connection block (12), a sealing gasket (122) being provided in the trapezoidal annular groove (121), one end of the sealing gasket (122) being fitted in the inner cavity of the movable buckle groove (431), and a warning piece is also provided on the main connection block (12).

4. The side-release pressure release device according to claim 3, characterized in that: The warning member comprises a fixed column (41), the fixed column (41) being arranged on one side of the movable buckle bowl (43), an annular buckle groove (411) being arranged in the middle of the fixed column (41), and one side of the fixed column (41) passing through and being slidably connected to the main shell (1) in the main cavity (14).

5. The side-release pressure release device according to claim 4, characterized in that: The main shell (1) is also provided with a plurality of limiting members, the limiting members including connecting nuts (44); a plurality of fixed cavities (15) are provided on the circumferential side of the top end of the main shell (1); the fixed cavities (15) pass through the main shell (1) to the center of the circumference; the connecting nut (44) is inserted into and rotatably connected to the fixed cavities (15); a supporting slider (45) is provided on one side of the connecting nut (44); the supporting slider (45) is inserted into and slidably connected to the fixed cavity (15); one end of the supporting slider (45) is in contact with the fixing column (41); a fixing spring (46) is provided between the supporting slider (45) and the connecting nut (44).

6. The side-release pressure release device according to claim 1, characterized in that: A fixed slider (23) is provided at one end of the conical cavity (212) away from the second air-permeable cavity (214); the pulling block (22) penetrates and is slidably connected to the fixed slider (23); and a thrust spring (24) penetrated by the pulling block (22) is provided between one end of the pulling block (22) and the fixed slider (23).

7. The side-release pressure release device according to claim 3, characterized in that: The deflation mechanism (2) also includes a movable part, which includes a main connecting rod (47), one end of which is fixedly connected to the movable buckle bowl (43), and the other end of which passes through the second air permeable cavity (214) and the ventilation cavity (303). A pressure rod block (48) is provided at one end of the main connecting rod (47) away from the movable buckle bowl (43), and the pressure rod block (48) is arranged in the ventilation cavity (303). A return spring (49) penetrated by the main connecting rod (47) is provided between the pressure rod block (48) and the main connecting block (12).

8. The side-release pressure release device according to claim 1, characterized in that: A fixing nut (33) is provided on a side of the main connection block (12) away from the main cavity (14).

9. The side-release pressure release device according to claim 4, characterized in that: The outer periphery of the fixing column (41) is painted with a warning color.

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