Explosion-proof angle valve convenient to quickly return
By incorporating a valve core and spring structure within the explosion-proof valve body, the problem of slow return speed caused by the need for multiple valve rotations in existing explosion-proof valves is solved, achieving rapid return and efficient operation.
Patent Information
- Application Number
- CN202520189200.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing explosion-proof valves require multiple rotations during the flow diversion process, resulting in a slow return speed and affecting work efficiency.
A valve core is installed inside the valve body, and first and second springs are provided on the inner side of the valve core. Through the design of the limiting plate and connecting rod, the spring potential energy is used to achieve rapid reset and improve the return speed.
This enables the explosion-proof valve to return to its original position quickly, improving the valve body's working efficiency.
Smart Images

Figure CN223662582U_ABST
Abstract
Description
Technical Field
[0001] This utility model is an explosion-proof angle valve that facilitates quick return to its original position, belonging to the field of explosion-proof angle valves. Background Technology
[0002] Explosion-proof valves are used in dust removal systems containing flammable gases or substances. They can serve as pressure relief devices for explosive pipelines or equipment. The diaphragm of the explosion-proof valve is usually calculated based on the operating pressure of the dust removal system and the content of flammable substances, and then the material, thickness, and scratches are selected. It is crucial not to affect the normal operation of the system due to improper selection. Explosion-proof valves generally come in two forms: horizontal explosion-proof valves and vertical explosion-proof valves. Both types of explosion-proof valves use an explosion-proof diaphragm covered structure. Vertical explosion-proof valves are installed on the cylinder, while horizontal explosion-proof valves are installed on the top.
[0003] Chinese patent discloses a novel explosion-proof and leak-proof valve (publication number: CN 210859826 U), comprising a valve body, a valve seat fixedly installed inside the valve body, a movable cavity opened inside the valve body, a valve stem movably installed inside the movable cavity, a fixed seat fixedly installed on the top of the valve stem, a rotating handle fixedly connected to the right side of the fixed seat, and spring cavities opened on both the left and right sides inside the valve stem, with a first spring fixedly installed inside the spring cavity.
[0004] During the process of guiding the flow through the valve body, the user needs to rotate the valve multiple times to open the flow through the valve body. The return speed is slow, which in turn affects the working efficiency of the valve body. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an explosion-proof angle valve that allows for quick return to its original position. This solves the problem that in existing technologies, users need to rotate the valve multiple times during the flow guiding process to open the valve body, resulting in a slow return speed that affects the valve's working efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof angle valve for easy and rapid return, comprising a valve body, an inlet, an outlet, a valve core, and a valve. The valve body has an inlet at its lower end and an outlet at its left end. The valve core is located in the middle of the inner side of the valve body, and the top of the valve core is fixed to the valve. The valve core includes a blocking plate, a connector, and a main body. The top of the blocking plate is fixed to the connector as a single unit, the top of the connector is vertically fixed to the main body, the outer side of the blocking plate is movably fitted to the valve body, and the top of the main body is fixed to the valve.
[0007] Furthermore, the connecting component includes a limiting shell, a fixing plate, a first spring, a second spring, a limiting plate, a limiting sleeve, and a connecting rod. The lower inner end of the limiting shell is fixed to the fixing plate. The top of the fixing plate is vertically fixed to the first spring. The top inner end of the limiting shell is fixed to the second spring. The lower end of the second spring is fixed to the limiting plate. A limiting sleeve is provided at the middle of the top of the limiting plate, and the inner side of the limiting sleeve is connected to the connecting rod. The bottom of the limiting shell is fixed to the blocking plate. The top of the connecting rod is fixed to the main body.
[0008] Furthermore, there are two of each of the first and second springs, and the first and second springs are symmetrically distributed along the transverse central axis of the limiting plate.
[0009] Furthermore, the spring potential energy of the first spring is greater than that of the second spring.
[0010] Furthermore, the outer surface of the blocking plate is coated with a corrosion-resistant coating.
[0011] Advantages: This utility model provides an explosion-proof angle valve that facilitates rapid return to its original position. By providing a valve core inside the valve body, and a first spring and a second spring inside the valve core, the limiting plate can be easily driven to achieve a reset and lifting effect, thereby achieving rapid reset and improving the working efficiency of the valve body. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a partial structural schematic diagram of the valve core of this utility model in a front cross-sectional view;
[0015] Figure 3 This is a partial structural schematic diagram of the connector of this utility model from the main view.
[0016] In the diagram: Valve body-1, Inlet-2, Outlet-3, Valve core-4, Valve-5, Blocking plate-41, Connector-42, Main body-43, Limiting shell-421, Fixing plate-422, First spring-423, Second spring-424, Limiting plate-425, Limiting sleeve-426, Connecting rod-427. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] Please see Figure 1 This utility model provides an explosion-proof angle valve that facilitates quick return to its original position through improvements. It includes a valve body 1, an inlet 2, an outlet 3, a valve core 4, and a valve 5. The inlet 2 is provided at the lower end of the valve body 1, and the outlet 3 is provided at the left end of the valve body 1. The valve core 4 is provided in the middle of the inner side of the valve body 1, and the top of the valve core 4 is fixed to the valve 5. The valve 5 is designed to facilitate better operation by the user.
[0019] Please see Figure 2 This utility model provides an explosion-proof angle valve that facilitates quick return to its original position through improvements. The valve core 4 includes a blocking plate 41, a connector 42, and a main body 43. The top of the blocking plate 41 is fixed to the connector 42 as a whole. The outer side of the blocking plate 41 is coated with a corrosion-resistant coating. The top of the connector 42 is vertically fixed to the main body 43. The outer side of the blocking plate 41 is movably fitted to the valve body 1. The top of the main body 43 is fixed to the valve 5. The blocking plate 41 facilitates a good sealing effect.
[0020] Please see Figure 3 This utility model provides an improved explosion-proof angle valve that facilitates rapid return to its original position. The connecting component 42 includes a limiting shell 421, a fixing plate 422, a first spring 423, a second spring 424, a limiting plate 425, a limiting sleeve 426, and a connecting rod 427. The lower inner end of the limiting shell 421 is fixed to the fixing plate 422 as a whole. The top of the fixing plate 422 is vertically fixed to the first spring 423. The spring potential energy of the first spring 423 is greater than that of the second spring 424. The first spring 423 and the second spring 424 are respectively provided with There are two springs, and the first spring 423 and the second spring 424 are symmetrically distributed along the transverse central axis of the limiting plate 425. The top inner side of the limiting shell 421 is fixed to the second spring 424. The lower end of the second spring 424 is fixed to the limiting plate 425. A limiting sleeve 426 is provided at the middle of the top of the limiting plate 425, and the inner side of the limiting sleeve 426 is connected to the connecting rod 427. The bottom of the limiting shell 421 is fixed to the blocking plate 41. The top of the connecting rod 427 is fixed to the main body 43. The arrangement of the two springs can achieve a better reset effect.
[0021] The work process is as follows:
[0022] First, the staff can connect and fix the external water inlet pipe and water outlet pipe to the liquid inlet 2 and liquid outlet 3 respectively. Then, the staff can turn the valve 5 to make the valve core 4 rise, and the blocking plate 41 releases the sealing effect of the liquid inlet 2, so that the water flows out from the liquid outlet 2.
[0023] Second, during the rotation of the connecting rod 427 in the limiting sleeve 426, the second spring 424 can limit and retract the limiting plate 425, thereby causing the connecting rod 427 to quickly return to its upward position. When the limiting plate 425 touches the first spring 423, the spring potential energy generated by the first spring 423 can reset and raise the limiting plate 425.
[0024] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An explosion-proof angle valve that facilitates rapid return to its original position, characterized in that: It includes a valve body (1), an inlet (2), an outlet (3), a valve core (4), and a valve (5). The valve body (1) has an inlet (2) at its lower end and an outlet (3) at its left end. The valve core (4) is located in the middle of the inner side of the valve body (1), and the top of the valve core (4) is fixed to the valve (5). The valve core (4) includes a blocking plate (41), a connector (42) and a body (43). The top of the blocking plate (41) is fixed to the connector (42) as a whole. The top of the connector (42) is vertically fixed to the body (43). The outer side of the blocking plate (41) is movably fitted to the valve body (1). The top of the body (43) is fixed to the valve (5).
2. The explosion-proof angle valve for easy and rapid return as described in claim 1, characterized in that: The connector (42) includes a limiting shell (421), a fixing plate (422), a first spring (423), a second spring (424), a limiting plate (425), a limiting sleeve (426), and a connecting rod (427). The lower inner end of the limiting shell (421) is fixed to the fixing plate (422). The top of the fixing plate (422) is vertically fixed to the first spring (423). The top inner end of the limiting shell (421) is fixed to the second spring (424). The lower end of the second spring (424) is fixed to the limiting plate (425). The middle of the top end of the limiting plate (425) is provided with a limiting sleeve (426), and the inner side of the limiting sleeve (426) is connected to the connecting rod (427). The bottom of the limiting shell (421) is fixed to the blocking plate (41). The top of the connecting rod (427) is fixed to the main body (43).
3. The explosion-proof angle valve for easy and rapid return as described in claim 2, characterized in that: Two of the first spring (423) and the second spring (424) are provided, and the first spring (423) and the second spring (424) are symmetrically distributed along the transverse central axis of the limiting plate (425).
4. The explosion-proof angle valve for easy and rapid return as described in claim 2, characterized in that: The spring potential energy of the first spring (423) is greater than that of the second spring (424).
5. The explosion-proof angle valve for easy and rapid return as described in claim 1, characterized in that: The outer surface of the blocking plate (41) is coated with a corrosion-resistant coating.
Citation Information
Patent Citations
Novel explosion-proof leakage-proof valve
CN210859826U