Safety valve structure
Through the threaded connection and rotating movable inner and outer cylinder components structure, the disassembly and assembly process of the safety valve return spring is simplified, and the problem of inconvenient maintenance of the return spring in the prior art is solved, ensuring stable spring performance.
Patent Information
- Application Number
- CN202422141513.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-31
AI Technical Summary
The removal and maintenance or replacement of the return spring of the existing safety valve is complicated to remove or replace, resulting in inconvenient maintenance.
The valve cover design is adopted with a threaded joint, combining the rotating and moving inner cylinder and outer cylinder structure. The inner cylinder and outer cylinder are cooperated with the outer cylinder through slide grooves and sliders to achieve simple disassembly and assembly of the return spring.
The maintenance and replacement process of the return spring is simplified, keeping the compression and rebound paths of the spring perpendicular, avoiding performance degradation caused by uneven spring stress.
Smart Images
Figure CN223090084U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety valves, and particularly relates to a safety valve structure. Background Technique
[0002] A safety valve is an automatic valve. Its main function is to automatically discharge the medium to the outside of the system when the medium pressure in the equipment or pipeline exceeds the specified value, so as to prevent the medium pressure in the pipeline or equipment from exceeding the safety limit. It is used for emergency pressure relief and pipeline equipment protection, and is widely used in boilers, pressure vessels and pipelines, playing an important role in protecting personal safety and equipment operation.
[0003] The reset spring for pressure relief of the safety valve will become fatigued after long-term use, affecting the reset and compression effects, and requires regular maintenance or replacement. The existing reset spring for pressure relief activities of the safety valve is installed in the valve cover at one end of the valve body. The valve cover is generally integrally arranged and fixed to the valve body by means of screw installation. The disassembly and assembly operations are cumbersome, making it inconvenient to maintain or replace the reset spring, which is very inconvenient. Content of the Utility Model
[0004] Based on the above description, the utility model provides a safety valve structure to solve the problem of inconvenient disassembly for maintenance and replacement of the reset spring for internal pressure relief of the existing safety valve.
[0005] The technical solution of the utility model to solve the above technical problems is as follows: A safety valve structure includes a valve body and a valve cover installed at the center of one end of the valve body. A valve cap is installed at one end of the valve cover. An inner cylinder member that rotates and moves is installed inside the valve cap. An outer cylinder member sleeved with the inner cylinder member is installed at one end of the valve body. A plurality of chutes arranged at equal intervals in a ring shape are formed on the surface of the outer cylinder member. Sliders that are slidably connected in the chutes and are staggered with the outer cylinder member are arranged on the surface of the inner cylinder member. A reset spring is installed between the inner cylinder member and the outer cylinder member.
[0006] Based on the above technical solution, the utility model can be further improved as follows.
[0007] Further, a threaded groove is formed at one end of the outer side of the valve cover away from the valve body. The valve cap is threadedly connected in the threaded groove, and one end of the inner wall of the valve cap fits with one end of the inner wall of the valve cover away from the valve body.
[0008] Further, the outer cylinder member includes a lower spring seat and an outer sleeve. The lower spring seat is installed at the center of one end of the valve body and fits with the inner side of the valve cover. The outer sleeve is arranged at the center of one end of the lower spring seat away from the valve body.
[0009] Further, the sliding groove is opened at one end of the outer sleeve away from the valve body, and the sliding grooves are annularly and equidistantly distributed with the center of the outer sleeve as the center point.
[0010] Further, the inner cylinder member includes an upper spring seat and an inner sleeve. The upper spring seat is installed at the center of the inner wall of the valve cover away from the valve body end, and the inner sleeve is arranged at the center of the upper spring seat close to the valve body end and is inserted inside the outer sleeve.
[0011] Further, the sliders are arranged on the outer side of the inner sleeve and are annularly and equidistantly distributed with the center of the inner sleeve as the center point. The size of the sliders is the same as that of the sliding grooves.
[0012] Further, the return spring is installed between the lower spring seat and the upper spring seat, and the return spring is inserted outside the outer sleeve and the slider.
[0013] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:
[0014] 1. In the present utility model, the valve cover is threadedly connected to the outside of the valve housing, and the inner cylinder member installed on the inner side of the valve cover is sleeved with the outer cylinder member. The valve cover is disassembled and assembled by threaded connection. During the process of rotating and disassembling the valve cover, one end of the inner cylinder member can be detached from the valve housing together with the valve cover because it is rotatably connected, and is separated from the outer cylinder member, exposing the return spring alone, so as to facilitate the maintenance and replacement of the return spring, simplify the operation process of maintaining and replacing the return spring, and facilitate the staff to perform regular treatment.
[0015] 2. In the present utility model, the sliders arranged on the outer side of the inner cylinder member are matched with the sliding grooves arranged on the outer side of the outer cylinder member. The sliders and the sliding grooves are completely fitted. The outer cylinder member and the inner cylinder member that are sleeved with each other have the same caliber size. When the return spring is installed between the lower spring seat and the upper spring seat, it fits with the outer sides of the outer cylinder member and the inner cylinder member, maintaining the perpendicularity of the compression and rebound paths, and avoiding the situation that the return spring is affected by uneven force and bends, thus affecting its performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic cross-sectional structure diagram of a safety valve structure provided by an embodiment of the present utility model;
[0017] Figure 2 It is an exploded structure diagram of the outer cylinder member and the inner cylinder member in an embodiment of the present utility model;
[0018] Figure 3 It is a schematic structure diagram of the connection relationship between the outer cylinder member and the inner cylinder member in an embodiment of the present utility model;
[0019] In the drawings, the list of components represented by each reference numeral is as follows:
[0020] 1. Valve body; 2. Valve cover; 21. Threaded groove; 3. Valve cap; 4. Outer cylinder part; 41. Lower spring seat; 42. Outer sleeve; 43. Slide groove; 5. Inner cylinder part; 51. Upper spring seat; 52. Inner sleeve; 53. Slide block; 6. Return spring. Detailed implementation manner
[0021] To facilitate the understanding of this application, the following will describe this application more comprehensively with reference to the relevant attached drawings. Embodiments of this application are shown in the attached drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0023] Please refer to Figures 1-3 , a safety valve structure of the present utility model includes a valve body 1 and a valve cover 2 installed at the center of one end of the valve body 1. A valve cap 3 is installed at one end of the valve cover 2. An inner cylinder part 5 that rotates and moves is installed inside the valve cap 3. An outer cylinder part 4 sleeved with the inner cylinder part 5 is installed at one end of the valve body 1. Slide grooves 43 arranged at equal intervals in a ring shape are formed on the surface of the outer cylinder part 4. Slide blocks 53 that are slidably connected in the slide grooves 43 and staggered with the outer cylinder part 4 are arranged on the surface of the inner cylinder part 5. A return spring 6 is installed between the inner cylinder part 5 and the outer cylinder part 4.
[0024] Please refer to Figure 2 , a threaded groove 21 is formed at one end of the outer side of the valve cover 2 away from the valve body 1. The valve cap 3 is threadedly connected in the threaded groove 21. One end of the inner wall of the valve cap 3 is attached to one end of the inner wall of the valve cover 2 away from the valve body 1. The valve cap 3 is installed on the outer side of the valve cover 2 by means of threaded connection, and the disassembly and assembly operations are simple. Anti-slip patterns are provided on the outer side of the valve cap 3.
[0025] Please refer to Figure 1 , the outer cylinder part 4 includes a lower spring seat 41 and an outer sleeve 42. The lower spring seat 41 is installed at the center of one end of the valve body 1 and is attached to the inner side of the valve cover 2. The outer sleeve 42 is arranged at the center of one end of the lower spring seat 41 away from the valve body 1. The slide groove 43 is formed at one end of the outer sleeve 42 away from the valve body 1. The slide grooves 43 are distributed at equal intervals in a ring shape with the center of the outer sleeve 42 as the center point.
[0026] Please refer to Figure 3, the inner cylinder member 5 includes an upper spring seat 51 and an inner sleeve 52. The upper spring seat 51 is installed at the center of the inner wall of the valve cover 3 away from one end of the valve body 1. The upper spring seat 51 is rotatably connected to the valve cover 2. When the valve cover 3 rotates and is removed from the outside of the thread groove 21, due to its rotatable connection with the valve cover 3, the outer inner sleeve 52 and the slider 53 will not be affected by the rotation of the valve cover 3, and will remain inserted into the outer sleeve 42 and the chute 43, and move vertically along the chute 43 during the removal of the valve cover 3, so that the inner sleeve 52 and the outer sleeve 42 can be disassembled and separated in cooperation with the threaded connection of the valve cover 3. The inner sleeve 52 is arranged at the center of the upper spring seat 51 close to one end of the valve body 1 and is inserted into the inside of the outer sleeve 42. The slider 53 is arranged on the outside of the inner sleeve 52 and is distributed annularly and equidistantly with the center of the inner sleeve 52 as the center point. The size of the slider 53 is the same as that of the chute 43, and the slider 53 fits perfectly with the chute 43. Under the connection of the slider 53 and the chute 43, the diameters of the outer cylinder member 4 and the inner cylinder member 5 are the same. When the return spring 6 is installed between the lower spring seat 41 and the upper spring seat 51, it can fit with the outside of the outer cylinder member 4 and the inner cylinder member 5, keep the compression and rebound paths vertical, and prevent the return spring 6 from being unevenly stressed and causing the return spring 6 to bend and affect its performance.
[0027] Please refer to Figure 1 , the return spring 6 is installed between the lower spring seat 41 and the upper spring seat 51. The return spring 6 is inserted into the outside of the outer sleeve 42 and the slider 53. The return spring 6 is inserted and installed, and the disassembly and assembly operations are simple.
[0028] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / include" or "has" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A safety valve structure, comprising a valve body (1) and a valve cover (2) installed at the center of one end of the valve body (1), characterized in that: One end of the valve cover (2) is provided with a valve cap (3). An internally rotatable inner cylinder member (5) is installed inside the valve cap (3). One end of the valve body (1) is provided with an outer cylinder member (4) sleeved with the inner cylinder member (5). The surface of the outer cylinder member (4) is provided with sliding grooves (43) arranged at equal intervals in a ring shape. The surface of the inner cylinder member (5) is provided with sliders (53) slidably connected in the sliding grooves (43) and staggered with the outer cylinder member (4). A return spring (6) is installed between the inner cylinder member (5) and the outer cylinder member (4).
2. The safety valve structure according to claim 1, characterized in that: A threaded groove (21) is provided at one end of the outer side of the valve cover (2) away from the valve body (1). The valve cap (3) is threadedly connected in the threaded groove (21). One end of the inner wall of the valve cap (3) is in contact with one end of the inner wall of the valve cover (2) away from the valve body (1).
3. The safety valve structure according to claim 1, characterized in that: The outer cylinder member (4) includes a lower spring seat (41) and an outer sleeve (42). The lower spring seat (41) is installed at the center of one end of the valve body (1) and is in contact with the inner side of the valve cover (2). The outer sleeve (42) is arranged at the center of one end of the lower spring seat (41) away from the valve body (1).
4. The safety valve structure according to claim 3, wherein: The sliding groove (43) is provided at one end of the outer sleeve (42) away from the valve body (1). The sliding grooves (43) are distributed at equal intervals in a ring shape with the center of the outer sleeve (42) as the center point.
5. The safety valve structure according to claim 3, wherein: The inner cylinder member (5) includes an upper spring seat (51) and an inner sleeve (52). The upper spring seat (51) is installed at the center of one end of the inner wall of the valve cap (3) away from the valve body (1). The inner sleeve (52) is arranged at the center of one end of the upper spring seat (51) close to the valve body (1) and is inserted into the inner side of the outer sleeve (42).
6. The safety valve structure according to claim 5, wherein: The sliders (53) are arranged on the outer side of the inner sleeve (52) and are distributed at equal intervals in a ring shape with the center of the inner sleeve (52) as the center point. The size of the sliders (53) is the same as that of the sliding grooves (43).
7. The safety valve structure according to claim 5, wherein: The return spring (6) is installed between the lower spring seat (41) and the upper spring seat (51). The return spring (6) is inserted outside the outer sleeve (42) and the sliders (53).