Exhaust pressure relief safety valve convenient to adjust

Abstract

The utility model relates to the technical field of exhaust pressure relief safety valves, in particular to an exhaust pressure relief safety valve convenient to adjust. According to the technical scheme, the safety valve comprises a main pipeline and a safety valve body, a connecting pipe is fixedly inserted into the top of the main pipeline, external threads are formed in the outer wall of the connecting pipe, internal threads are formed in the inner ring of the bottom of the safety valve body and matched with the external threads on the outer wall of the connecting pipe, and the safety valve body is in threaded connection with the main pipeline through the connecting pipe. An exhaust pipe is fixedly inserted into the outer wall of the safety valve body, an electromagnetic valve is fixedly connected to the end, away from the safety valve body, of the exhaust pipe, a first movable plate and a second movable plate are movably arranged in the safety valve body in a sleeved mode, a spring is jointly and fixedly connected between the first movable plate and the second movable plate, and a control assembly is fixedly installed at the top of the second movable plate. The safety valve body is used for controlling opening and closing of the electromagnetic valve, and an adjusting assembly is fixedly installed in the safety valve body. According to the safety valve, parts in the safety valve body can be cleaned or checked and maintained conveniently, and air leakage and pressure discharge can be controlled conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pressure relief safety valves, in particular to an exhaust pressure relief safety valve which is easy to adjust. Background Art

[0002] Safety valves are special valves whose opening and closing parts are normally closed under the action of external forces. When the pressure of the medium in the equipment or pipeline exceeds the specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or equipment from exceeding the specified value. Safety valves belong to automatic valves and are mainly used in boilers, pressure vessels and pipelines to control the pressure not to exceed the specified value, which plays an important protective role in personal safety and equipment operation. Safety valves must undergo pressure tests before they can be used. Air pressure valves are a type of safety valve. When the pressure in the equipment or pipeline exceeds the set pressure of the pressure relief valve, the pressure relief valve automatically opens to ensure that the pressure of the medium in the equipment and pipeline is below the set pressure, protecting the equipment and pipelines and preventing accidents.

[0003] In the prior art, the announcement number is: CN211649189U discloses an exhaust pressure relief safety valve that is easy to adjust, including a safety valve body, the safety valve body includes a support cylinder, one end of the support cylinder is fixedly connected to a fixing block, and the end of the fixing block away from the support cylinder is fixedly connected to a connecting bolt rod; the other end of the support cylinder is provided with a telescopic control device, and one end of the telescopic control device is connected to the support cylinder through a matching connection; an air guide pipe is provided under the support cylinder, the top of the air guide pipe passes through the bottom of the support cylinder, the air guide pipe is connected to the support cylinder, and a control metering device is provided in the air guide pipe; a sealing adjustment device is provided in the inner cavity of the support cylinder, and the sealing adjustment device is fixedly connected to the telescopic control device; the utility model is easy to adjust, can flexibly control the amount of air leakage, and can also seal the air guide pipe as needed.

[0004] Although the above-mentioned exhaust pressure relief safety valve can achieve the effect of controlling exhaust pressure relief through settings such as motors and movable plates, it still has the following shortcomings in actual applications: the parts inside the valve body are complexly arranged, and it is difficult to clean or inspect and repair the inside after connecting to external equipment. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and to provide an exhaust pressure relief safety valve which is easy to adjust.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: an exhaust pressure relief safety valve which is easy to adjust, comprising a main pipeline and a safety valve body, a connecting pipe is fixedly inserted at the top of the main pipeline, an outer wall of the connecting pipe is provided with an external thread, an inner circle at the bottom of the safety valve body is provided with an internal thread, and the internal thread matches the external thread on the outer wall of the connecting pipe, the safety valve body is threadedly connected to the main pipeline through the connecting pipe, an exhaust pipe is fixedly inserted at the outer wall of the safety valve body, an end of the exhaust pipe away from the safety valve body is fixedly connected with an electromagnetic valve, an internal movable sleeve of the safety valve body is provided with an movable plate 1 and an movable plate 2, a spring is fixedly connected between the movable plate 1 and the movable plate 2, a control component is fixedly installed on the top of the movable plate 2 for controlling the opening and closing of the electromagnetic valve, and an adjusting component is fixedly installed inside the safety valve body for controlling the distance between the movable plate 1 and the movable plate 2 and the main pipeline.

[0007] Preferably, the control assembly includes a contact switch fixedly mounted on the top of the movable plate 2, the contact switch is electrically connected to the solenoid valve, a button is fixedly mounted on the bottom of the contact switch, and the button passes through the movable plate 2 and extends to the bottom of the movable plate 2.

[0008] Preferably, a top block is fixedly mounted on the top of the movable plate 1, and the top block is located directly below the button.

[0009] Preferably, the regulating assembly comprises a partition fixedly sleeved on the inner wall of the safety valve body, a cylinder is fixedly mounted on the top of the partition, and a telescopic shaft of the cylinder passes through the partition and is fixedly connected to the top of the movable plate 2.

[0010] Preferably, two sliding grooves are provided on the inner wall of the safety valve body, and two sliding blocks are fixedly connected to the peripheries of the movable plate 1 and the movable plate 2, and the sliding blocks are slidably connected to the sliding grooves.

[0011] Preferably, a sealing rubber ring is provided on the inner wall fixing sleeve of the safety valve body, and the bottom of the sealing rubber ring abuts against the top of the connecting pipe.

[0012] The beneficial effects of the utility model are as follows: when using the device, first install the thread of the safety valve body on the connecting pipe until the sealing rubber ring is completely in contact with the connecting pipe, start the cylinder to control the movable plate 2 to move up and down inside the safety valve body, adjust it to a suitable position, and the movable plate 2 drives the movable plate 1 to move up and down through the spring, thereby controlling the rising distance of the movable plate 1. When the pressure value is large, the gas pushes the movable plate 1 to rise, and after the top block fixedly installed on the top of the movable plate 1 touches the button, the contact switch will open the solenoid valve to discharge the gas. When it is necessary to clean or inspect and repair the parts inside the safety valve body, it is only necessary to rotate and remove the safety valve body from the connecting pipe. Through these arrangements, the device is not only convenient for cleaning or inspecting and repairing the parts inside the safety valve body, but also convenient for controlling the air release and pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the overall structure of an embodiment of an exhaust pressure relief safety valve that is easy to adjust in the utility model;

[0014] Figure 2 It is a front cutaway schematic diagram of the overall structure of an embodiment of an exhaust pressure relief safety valve that is easy to adjust in the utility model;

[0015] Figure 3 The utility model is an embodiment of an exhaust pressure relief safety valve which is easy to adjust. Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0016] Figure numerals: 1. main pipeline; 2. safety valve body; 3. connecting pipe; 4. sealing rubber ring; 5. exhaust pipe; 6. solenoid valve; 7. movable plate one; 8. movable plate two; 9. spring; 10. contact switch; 11. button; 12. top block; 13. partition; 14. cylinder; 15. slide groove; 16. slider. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0018] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0020] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0021] Embodiment 1

[0022] like Figure 1-3 As shown, the utility model proposes an exhaust pressure relief safety valve which is easy to adjust, comprising a main pipeline 1 and a safety valve body 2, a connecting pipe 3 is fixedly inserted on the top of the main pipeline 1, an outer wall of the connecting pipe 3 is provided with an external thread, an inner circle of the bottom of the safety valve body 2 is provided with an internal thread, and the internal thread matches the external thread on the outer wall of the connecting pipe 3, the safety valve body 2 is threadedly connected to the main pipeline 1 through the connecting pipe 3, an exhaust pipe 5 is fixedly inserted on the outer wall of the safety valve body 2, an end of the exhaust pipe 5 away from the safety valve body 2 is fixedly connected with a solenoid valve 6, an internal movable sleeve of the safety valve body 2 is provided with a movable plate 1 7 and a movable plate 2 8, a spring 9 is fixedly connected between the movable plate 1 7 and the movable plate 2 8, a control component is fixedly installed on the top of the movable plate 2 8 for controlling the opening and closing of the solenoid valve 6, and an adjusting component is fixedly installed inside the safety valve body 2 for controlling the distance between the movable plate 1 7 and the movable plate 2 8 and the main pipeline 1.

[0023] In this embodiment: the control component includes a contact switch 10 fixedly mounted on the top of the movable plate 2 8, the contact switch 10 is electrically connected to the solenoid valve 6, a button 11 is fixedly mounted on the bottom of the contact switch 10, and the button 11 passes through the movable plate 2 8 and extends to the bottom of the movable plate 2 8. Through this arrangement, when the button 11 is touched, the solenoid valve 6 can be opened through the contact switch 10; a top block 12 is fixedly mounted on the top of the movable plate 1 7, and the top block 12 is located directly below the button 11. Through this arrangement, when the movable plate 1 7 rises, The top block 12 is driven to rise, and the top block 12 will touch the button 11; the adjustment component includes a partition 13 fixedly mounted on the inner wall of the safety valve body 2, and a cylinder 14 is fixedly installed on the top of the partition 13. The telescopic shaft of the cylinder 14 passes through the partition 13 and is fixedly connected to the top of the movable plate 2 8. Through this arrangement, the starting cylinder 14 can drive the movable plate 2 8 to move up and down inside the safety valve body 2. The movable plate 2 8 drives the movable plate 1 7 to move up and down through the spring 9, thereby controlling the distance between the movable plate 1 7 and the main pipeline 1, and then controlling the pressure trigger value.

[0024] Embodiment 2

[0025] like Figure 1-3As shown, the utility model proposes an exhaust pressure relief safety valve which is easy to adjust. Compared with the first embodiment, two slide grooves 15 are provided on the inner wall of the safety valve body 2, and two sliders 16 are fixedly connected to the periphery of the movable plate 1 7 and the movable plate 2 8, and the sliders 16 are slidably connected to the slide grooves 15. Through this arrangement, it is convenient for the movable plate 1 7 and the movable plate 2 8 to slide up and down inside the safety valve body 2, making it more stable when sliding; a sealing rubber ring 4 is fixedly sleeved on the inner wall of the safety valve body 2, and the bottom of the sealing rubber ring 4 abuts against the top of the connecting pipe 3. Through this arrangement, the connection between the safety valve body 2 and the connecting pipe 3 is made more closed, avoiding the generation of gaps when the safety valve body 2 and the connecting pipe 3 are connected.

[0026] Working principle: When using this device, first install the thread of the safety valve body 2 on the connecting pipe 3 until the sealing rubber ring 4 is completely in contact with the connecting pipe 3, start the cylinder 14 to control the movable plate 2 8 to move up and down inside the safety valve body 2, and adjust it to a suitable position. The movable plate 2 8 drives the movable plate 1 7 to move up and down through the spring 9, thereby controlling the rising distance of the movable plate 1 7. When the pressure value is large, the gas pushes the movable plate 1 7 to rise. After the top block 12 fixed on the top of the movable plate 1 7 touches the button 11, the contact switch 10 will open the solenoid valve 6 to discharge the gas. When it is necessary to clean or inspect and repair the parts inside the safety valve body 2, just rotate and remove the safety valve body 2 from the connecting pipe 3.

[0027] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. An easily adjustable exhaust pressure relief safety valve, comprising a main pipeline (1) and a safety valve body (2), characterized in that: A connecting pipe (3) is fixedly inserted at the top of the main pipeline (1), and an external thread is provided on the outer wall of the connecting pipe (3). An internal thread is provided on the inner ring of the bottom of the safety valve body (2), and the internal thread matches the external thread on the outer wall of the connecting pipe (3). The safety valve body (2) is threadedly connected to the main pipeline (1) through the connecting pipe (3). An exhaust pipe (5) is fixedly inserted at the outer wall of the safety valve body (2), and an end of the exhaust pipe (5) away from the safety valve body (2) is fixedly connected to a solenoid valve (6). An internal movable sleeve of the safety valve body (2) is provided with a movable plate 1 (7) and a movable plate 2 (8), and a spring (9) is fixedly connected between the movable plate 1 (7) and the movable plate 2 (8). A control component is fixedly installed on the top of the movable plate 2 (8) for controlling the opening and closing of the solenoid valve (6). An adjusting component is fixedly installed inside the safety valve body (2) for controlling the distance between the movable plate 1 (7) and the movable plate 2 (8) and the main pipeline (1).

2. The exhaust pressure relief safety valve that is easy to adjust according to claim 1 is characterized in that: The control assembly comprises a contact switch (10) fixedly mounted on the top of the second movable plate (8), the contact switch (10) being electrically connected to the solenoid valve (6), a button (11) being fixedly mounted on the bottom of the contact switch (10), and the button (11) passing through the second movable plate (8) and extending to the bottom of the second movable plate (8).

3. The exhaust pressure relief safety valve that is easy to adjust according to claim 2 is characterized in that: A top block (12) is fixedly mounted on the top of the movable plate 1 (7), and the top block (12) is located directly below the button (11).

4. The exhaust pressure relief safety valve that is easy to adjust according to claim 1 is characterized in that: The regulating assembly comprises a partition (13) fixedly sleeved on the inner wall of the safety valve body (2), a cylinder (14) fixedly mounted on the top of the partition (13), and a telescopic shaft of the cylinder (14) passing through the partition (13) and fixedly connected to the top of the second movable plate (8).

5. The easily adjustable exhaust pressure relief safety valve according to claim 1, characterized in that: Two slide grooves (15) are provided on the inner wall of the safety valve body (2), and two sliding blocks (16) are fixedly connected to the periphery of the movable plate 1 (7) and the movable plate 2 (8), and the sliding blocks (16) are slidably connected to the slide grooves (15).

6. The easily adjustable exhaust pressure relief safety valve according to claim 1, characterized in that: The inner wall of the safety valve body (2) is fixedly sleeved with a sealing rubber ring (4), and the bottom of the sealing rubber ring (4) abuts against the top of the connecting pipe (3).

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