Spring loaded safety valve

Abstract

The utility model relates to safety valve technical field discloses a spring type safety valve, including valve body, valve cover, valve port and processing structure, the upper side of valve body is detachable connection valve cover through bolt, the bottom of valve body inside is equipped with valve port, the upper side of valve port is equipped with processing structure, processing structure is equipped in the inboard of valve body, processing structure includes baffle, first sealing washer and fixed cylinder, the upper side of valve body inside is equipped with baffle, the outer wall of baffle is connected with the inner wall of valve body, the middle position of baffle is equipped with first sealing washer, the inside of first sealing washer is equipped with fixed cylinder, the below of fixed cylinder is installed with bottom plate, the below of bottom plate is installed with sealing plug, the upper side of fixed cylinder outer wall is installed with connecting plate, the utility model reduces the corrosion risk, prolongs the device life in the pressure relief process, and the contact path of medium and first spring is blocked.

Description

Technical Field

[0001] This utility model relates to the field of safety valve technology, specifically a spring-loaded safety valve. Background Technology

[0002] A spring-loaded safety valve relies on the elastic pressure of a spring to lock the valve's diaphragm or plunger. When the pressure in the pressure vessel becomes abnormal, the resulting high pressure will overcome the spring pressure of the safety valve, thus opening the locking device and creating a pressure relief channel to release the high pressure.

[0003] A search revealed Chinese Patent Publication No. CN218063411U, published on December 16, 2022, which discloses a spring-loaded safety valve. The document describes a valve consisting of a main valve body, a mounting base, and a pressure relief base. A pressure relief mechanism is installed on the pressure relief base. An annular groove is provided on the mounting base, and a convex ring is provided on the lower end face of the pressure relief base. The convex ring is rotatably disposed within the annular groove. During the pressure relief process, the medium comes into full contact with some parts, increasing the risk of corrosion and reducing the lifespan of the device. In view of this, this case was developed to address the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a spring-loaded safety valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spring-loaded safety valve, comprising a valve body, a valve cover, a valve port, and a processing structure. The valve cover is detachably connected to the top of the valve body via bolts. A valve port is provided at the bottom of the valve body. A processing structure is provided above the valve port. The processing structure is located on the inner side of the valve body.

[0006] The processing structure includes a partition, a first sealing gasket, and a fixed cylinder. A partition is located on the upper part of the valve body, and the outer wall of the partition is connected to the inner wall of the valve body. A first sealing gasket is located in the middle of the partition, and a fixed cylinder is located inside the first sealing gasket. A base plate is installed below the fixed cylinder, and a sealing plug is installed below the base plate. A connecting plate is installed on the upper part of the outer wall of the fixed cylinder, and the lower part of the connecting plate is connected to the upper part of the partition via a second spring. A first spring is installed inside the fixed cylinder, and the lower part of the first spring is connected to the inner wall of the fixed cylinder. A fixed rod is installed above the first spring, and the upper part of the fixed rod passes through a second sealing gasket and a third sealing gasket, connecting to the lower part of the connecting rod. The second sealing gasket is located at the top of the fixed cylinder, and the third sealing gasket is located inside the valve cover. The connecting rod is located inside a groove, and the groove is located inside the valve cover. Connecting blocks are installed on both sides of the connecting rod, and the connecting blocks are located inside an adjusting groove, which is located inside the valve cover.

[0007] Preferably, the valve body and the valve port are integrated, and the interior of the valve body is fixedly connected to the outer wall of the partition.

[0008] Preferably, the partition and the first sealing gasket are tightly fitted together, and the fixed cylinder and the first sealing gasket are correspondingly fitted together.

[0009] Preferably, the fixed cylinder and the base plate are fixedly connected, and the base plate and the sealing plug are tightly fitted together.

[0010] Preferably, the sealing plug and the valve port are correspondingly arranged, and the fixed cylinder and the connecting plate are fixedly connected.

[0011] Preferably, the second springs are fixedly connected to the upper part of the partition and the lower part of the connecting plate, and the first springs are fixedly connected to the inside of the fixed cylinder and the lower part of the fixed rod.

[0012] Preferably, the fixing rod and the fixing cylinder are slidably connected, and the fixing rod and the connecting rod are perpendicular to each other.

[0013] Preferably, the connecting rod and the connecting block are fixedly connected, and the connecting block and the adjusting groove are slidably connected.

[0014] Preferably, the adjusting groove is spirally arranged, and the adjusting groove and the valve cover are integrally formed.

[0015] Preferably, the middle positions of the valve port, the base plate, the first spring, the fixing rod, and the connecting rod are on the same horizontal line.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] By setting up a partition, a first sealing gasket and a fixed cylinder, the fixed cylinder is first tightly connected to the bottom sealing plug through the bottom plate, and the preload of the first spring acts directly on the sealing plug, so that it presses tightly against the valve port, forming the main sealing surface that blocks the flow of the medium;

[0018] When the user operates the device, they hold the connecting rod and rotate it. The connecting rod drives the connecting blocks on both sides to rotate in a circle along the spiral adjustment groove. Because the adjustment groove has a spiral structure, the connecting blocks spiral upward along the groove during rotation, causing the connecting rod to move vertically upward within the groove. When the connecting rod moves upward, it pushes the fixed rod to slide upward within the fixed cylinder, causing the first spring to extend. The extension of the first spring causes the fixed cylinder and the bottom plate to move upward synchronously, ultimately allowing the sealing plug to precisely disengage from the valve port. The medium then passes through the valve port to complete the pressure relief. During the pressure relief process, the first sealing gasket tightly fills the gap between the partition and the fixed cylinder, and the fixed cylinder wraps around the first spring, blocking the contact path between the medium and the first spring, reducing the risk of corrosion, and extending the life of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a frontal cross-sectional view of the present invention.

[0022] Figure 3 This is a partial frontal cross-sectional view of the processing structure of this utility model;

[0023] Figure 4 This is a front cross-sectional view of the processing structure used in this utility model;

[0024] Figure 5 This is a partial top view cross-sectional diagram of the processing structure of this utility model.

[0025] In the diagram: 1. Valve body; 2. Valve cover; 3. Valve port; 4. Machining structure; 401. Partition plate; 402. First sealing gasket; 403. Fixing cylinder; 404. Base plate; 405. Sealing plug; 406. First spring; 407. Fixing rod; 408. Second sealing gasket; 409. Third sealing gasket; 410. Connecting rod; 411. Groove; 412. Connecting block; 413. Adjusting groove; 414. Connecting plate; 415. Second spring. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Please see Figure 1-5 This utility model provides a spring-loaded safety valve technical solution: a spring-loaded safety valve, including a valve body 1, a valve cover 2, a valve port 3 and a processing structure 4. The valve cover 2 is detachably connected to the top of the valve body 1 by bolts. The valve port 3 is provided at the bottom inside the valve body 1. The processing structure 4 is provided above the valve port 3 and is located on the inner side of the valve body 1.

[0030] The processing structure 4 includes a partition 401, a first sealing gasket 402, and a fixing cylinder 403. The partition 401 is located at the top inside the valve body 1, and its outer wall is connected to the inner wall of the valve body 1. The first sealing gasket 402 is located in the middle of the partition 401, and the fixing cylinder 403 is located inside the first sealing gasket 402. A base plate 404 is installed below the fixing cylinder 403, and a sealing plug 405 is installed below the base plate 404. A connecting plate 414 is installed on the top of the outer wall of the fixing cylinder 403, and its lower part is connected to the top of the partition 401 via a second spring 415. A first spring is installed inside the fixing cylinder 403. 406. The lower part of the first spring 406 is connected to the inner wall of the fixed cylinder 403. A fixed rod 407 is installed above the first spring 406. The upper part of the fixed rod 407 passes through the second sealing gasket 408 and the third sealing gasket 409 and is connected to the lower part of the connecting rod 410. The second sealing gasket 408 is located at the top of the fixed cylinder 403. The third sealing gasket 409 is located inside the valve cover 2. The connecting rod 410 is located inside the groove 411. The groove 411 is located inside the valve cover 2. Connecting blocks 412 are installed on both sides of the connecting rod 410. The connecting blocks 412 are located inside the adjusting groove 413. The adjusting groove 413 is located inside the valve cover 2.

[0031] The valve body 1 and the valve port 3 are integrated, and the interior of the valve body 1 is fixedly connected to the outer wall of the partition 401.

[0032] The partition 401 and the first sealing gasket 402 are tightly fitted together, and the fixed cylinder 403 and the first sealing gasket 402 are correspondingly fitted together.

[0033] The fixed cylinder 403 is fixedly connected to the base plate 404, and the base plate 404 and the sealing plug 405 are tightly fitted together.

[0034] The sealing plug 405 is correspondingly set with the valve port 3, and the fixed cylinder 403 is fixedly connected with the connecting plate 414.

[0035] The second springs 415 are fixedly connected to the upper part of the partition plate 401 and the lower part of the connecting plate 414, and the first springs 406 are fixedly connected to the inside of the fixed cylinder 403 and the lower part of the fixed rod 407.

[0036] The fixed rod 407 and the fixed cylinder 403 are slidably connected, and the fixed rod 407 and the connecting rod 410 are perpendicular to each other.

[0037] The connecting rod 410 and the connecting block 412 are fixedly connected, while the connecting block 412 and the adjusting groove 413 are slidably connected.

[0038] The adjusting groove 413 is spirally arranged, and the adjusting groove 413 and the valve cover 2 are integrated.

[0039] The middle positions of valve port 3, base plate 404, first spring 406, fixing rod 407 and connecting rod 410 are on the same horizontal line.

[0040] Working principle:

[0041] First, the fixed cylinder 403 is tightly connected to the bottom sealing plug 405 through the base plate 404. The preload of the first spring 406 acts directly on the sealing plug 405, causing it to press tightly against the valve port 3, forming the main sealing surface that blocks the flow of the medium.

[0042] When the user operates the device, they hold the connecting rod 410 and rotate it. The connecting rod 410 drives the connecting blocks 412 on both sides to rotate circumferentially along the spiral adjustment groove 413. Because the adjustment groove 413 has a spiral structure, when rotating, the connecting blocks 412 spirally rise along the groove, causing the connecting rod 410 to move vertically upward in the groove 411. When the connecting rod 410 moves upward, it pushes the fixed rod 407 to slide upward in the fixed cylinder 403, causing the first spring 406 to extend. The extension of the first spring 406 causes the fixed cylinder 403 and the bottom plate 404 to move upward synchronously, ultimately causing the sealing plug 405 to precisely disengage from the valve port 3. The medium is then depressurized through the valve port 3. During the depressurization process, the first sealing gasket 402 tightly fills the gap between the partition plate 401 and the fixed cylinder 403, and the fixed cylinder 403 wraps around the first spring 406, blocking the contact path between the medium and the first spring 406, reducing the risk of corrosion, and extending the life of the device.

[0043] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring-loaded safety valve, comprising a valve body (1), a valve cover (2), a valve port (3), and a machining structure (4), characterized in that: The valve cover (2) is detachably connected to the top of the valve body (1) by bolts. The bottom of the valve body (1) is provided with a valve port (3). A processing structure (4) is provided above the valve port (3). The processing structure (4) is located on the inner side of the valve body (1). The processing structure (4) includes a partition (401), a first sealing gasket (402), and a fixed cylinder (403). The partition (401) is provided above the interior of the valve body (1). The outer wall of the partition (401) is connected to the inner wall of the valve body (1). The first sealing gasket (402) is provided in the middle of the partition (401). The fixed cylinder (403) is provided inside the first sealing gasket (402). A base plate (404) is installed below the fixed cylinder (403). A sealing plug (405) is installed below the base plate (404). A connecting plate (414) is installed above the outer wall of the fixed cylinder (403). The lower part of the connecting plate (414) is connected to the upper part of the partition (401) through a second spring (415). The first spring (403) is installed inside the fixed cylinder (403). 406), the lower part of the first spring (406) is connected to the inner wall of the fixed cylinder (403), the upper part of the first spring (406) is equipped with a fixed rod (407), the upper part of the fixed rod (407) passes through the second sealing gasket (408), the third sealing gasket (409) and is connected to the lower part of the connecting rod (410), the second sealing gasket (408) is located at the top of the fixed cylinder (403), the third sealing gasket (409) is located on the inner side of the valve cover (2), the connecting rod (410) is located on the inner side of the groove (411), the groove (411) is located on the inner side of the valve cover (2), the connecting rod (410) is equipped with connecting blocks (412) on both sides, the connecting blocks (412) are located on the inner side of the adjusting groove (413), the adjusting groove (413) is located on the inner side of the valve cover (2).

2. A spring-loaded safety valve according to claim 1, characterized in that: The valve body (1) and the valve port (3) are integrated, and the interior of the valve body (1) is fixedly connected to the outer wall of the partition (401).

3. A spring-loaded safety valve according to claim 2, characterized in that: The partition (401) and the first sealing gasket (402) are tightly fitted together, and the fixing cylinder (403) and the first sealing gasket (402) are correspondingly fitted together.

4. A spring-loaded safety valve according to claim 3, characterized in that: The fixed cylinder (403) is fixedly connected to the base plate (404), and the base plate (404) and the sealing plug (405) are tightly fitted together.

5. A spring-loaded safety valve according to claim 4, characterized in that: The sealing plug (405) and the valve port (3) are correspondingly arranged, and the fixed cylinder (403) and the connecting plate (414) are fixedly connected.

6. A spring-loaded safety valve according to claim 5, characterized in that: The second spring (415) is fixedly connected to the top of the partition plate (401) and the bottom of the connecting plate (414), and the first spring (406) is fixedly connected to the inside of the fixed cylinder (403) and the bottom of the fixed rod (407).

7. A spring-loaded safety valve according to claim 6, characterized in that: The fixed rod (407) and the fixed cylinder (403) are slidably connected, and the fixed rod (407) and the connecting rod (410) are perpendicular to each other.

8. A spring-loaded safety valve according to claim 7, characterized in that: The connecting rod (410) and the connecting block (412) are fixedly connected, and the connecting block (412) and the adjusting groove (413) are slidably connected.

9. A spring-loaded safety valve according to claim 8, characterized in that: The adjustment groove (413) is spirally arranged, and the adjustment groove (413) and the valve cover (2) are integrated.

10. A spring-loaded safety valve according to claim 9, characterized in that: The middle positions of the valve port (3), the base plate (404), the first spring (406), the fixing rod (407), and the connecting rod (410) are on the same horizontal line.

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