Adjustable manual pressure release valve
By designing an adjustable manual pressure relief valve, the problem of large noise and complex operation of a single exhaust hole of the oxygen chamber emergency valve is solved, and safe pressure relief and noise reduction can be operated inside and outside the chamber. It has a simple structure and convenient operation.
Patent Information
- Application Number
- CN202422304863.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-21
AI Technical Summary
The existing oxygen chamber emergency valve is a single exhaust hole to relieve pressure, which produces large noise, has complex structure and can only operate in the chamber, which has safety hazards and cumbersome operation problems.
An adjustable manual pressure relief valve is designed with a two-way operation function. The opening and closing of multiple exhaust holes is controlled by rotatable first and second knobs both inside and outside the cabin. The exhaust holes are built-in sound silencer to reduce noise and are fixed to the cabin by sealing rings and locking rings.
It can realize emergency operation and pressure relief in and out of the cabin, reducing the risk in emergency situations, and effectively reducing noise through silence cotton, with a simple structure and convenient operation.
Smart Images
Figure CN223063195U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of safety valves and relates to an adjustable manual pressure relief valve. Background Art
[0002] The oxygen chamber is a sealed cavity and an emergency valve needs to be installed for pressure relief. However, the existing oxygen chamber emergency valve structure uses a single exhaust hole for pressure relief, which is prone to making a "hissing" noise, the structure is too complex, and it can only be operated inside the chamber to exhaust and relieve pressure. Moreover, the operation is too cumbersome. Personnel outside the chamber cannot operate to assist in forcing the safety valve inside the chamber to relieve pressure, making it difficult to achieve timely, effective and safe emergency relief in case of an emergency, and there are certain usage risks. Summary of the Utility Model
[0003] The utility model provides an adjustable manual pressure relief valve, aiming to solve the problems that the existing pressure relief valve uses a single exhaust hole for pressure relief, which will generate relatively large noise, there are certain safety hazard risks in the single pressure relief operation inside the chamber, the structure of the pressure relief valve is too complex, and the pressure relief operation is too cumbersome.
[0004] To achieve the above object, the utility model provides an adjustable manual pressure relief valve, which includes a pipe body valve seat, a locking ring, a pipe body valve core and a second knob. One end of the pipe body valve seat is provided with a first stop ring, one side of the first stop ring is provided with a sealing ring, the other end of the pipe body valve seat is provided with a movable locking ring, the pipe body valve seat is movably sleeved with a pipe body valve core, one end of the pipe body valve core is integrally connected with a first knob, the other end of the pipe body valve core is detachably provided with a second knob, and a number of first exhaust holes and second exhaust holes are respectively and correspondingly arranged at both ends of the pipe body valve core in a communicating manner, and both the first exhaust holes and the second exhaust holes are located outside both ends of the pipe body valve seat, and sound-absorbing cotton is arranged in both the first exhaust holes and the second exhaust holes.
[0005] Preferably, a raised ring is arranged in the middle of the pipe body valve core, a first external thread is arranged on the raised ring, a first internal thread is continuously arranged on the inner wall of the pipe body valve seat, and the first external thread is screwed with the first internal thread so that the pipe body valve core can rotate and stretch relative to the pipe body valve seat.
[0006] Preferably, a number of first rotation clamping surfaces are arranged on the side end surface of the first stop ring, and a number of second rotation clamping surfaces are arranged on the side end surface of the locking ring.
[0007] Preferably, a second external thread is arranged on the outer side of one end of the pipe body valve seat, a second internal thread is arranged on the inner side wall of the locking ring, and the second external thread is screwed with the second internal thread so that the pipe body valve seat and the locking ring are threadedly and firmly connected.
[0008] Preferably, a first threaded hole is provided at the other end of the pipe body valve core, and a plurality of second threaded holes are provided at one end of the second knob. A set screw is provided for connecting the second threaded hole and the first threaded hole, so that the pipe body valve core is tightly connected to the second knob.
[0009] Preferably, a plurality of first clamping surfaces are provided on the side end surface of the first knob, and first anti-slip stripes are provided between every two adjacent first clamping surfaces.
[0010] Preferably, a plurality of second clamping surfaces are provided on the side end surface of the second knob, and second anti-slip stripes are provided between every two adjacent second clamping surfaces.
[0011] The beneficial effects of the present utility model compared with the prior art:
[0012] The present utility model provides an adjustable manual pressure relief valve, which is fixed on the cabin board through a sealing ring, a pipe body valve seat and a locking ring. The pipe body valve core is inserted into the pipe body valve seat and tightly connected to the second knob. When relieving pressure in an emergency, rotate the second knob in the cabin to make the second exhaust hole conduct and discharge air outwards, and also rotate the first knob outside the cabin to make the first exhaust hole conduct and discharge air outwards. It has a two-way rotation operation inside and outside the cabin, greatly reducing the emergency risk. A plurality of first exhaust holes and second exhaust holes are internally provided with sound-absorbing cotton, which can effectively reduce the noise generated during the pressure relief process. Moreover, the pressure relief valve has a simple structure and very convenient manual pressure relief operation.
[0013] To more clearly elaborate the structural features and functions of the present utility model, the following will combine the drawings with specific embodiments to detail the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0015] Figure 2 is Figure 1 the front view structural schematic diagram of
[0016] Figure 3 is Figure 1 the sectional view structural schematic diagram of
[0017] Figure 4 is Figure 1 the exploded view structural schematic diagram of
[0018] Reference numerals:
[0019] 1. Body valve seat; 2. Locking ring; 3. Body valve core; 4. Second knob; 5. First stop ring; 6. First knob; 7. First exhaust hole; 8. Second exhaust hole; 9. Raised ring; 10. First clamping surface; 12. Second clamping surface; 13. Second external thread; 14. Second internal thread; 15. First threaded hole; 16. Second threaded hole; 17. First clamping surface; 18. First friction-increasing stripe; 19. Second clamping surface; 20. Second friction-increasing stripe; 21. Sealing ring. Detailed implementation manner
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.
[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0022] To achieve the above object, an embodiment of the present utility model provides an adjustable manual pressure relief valve. Refer to Figure 1-4 As shown, it includes a body valve seat 1, a locking ring 2, a body valve core 3, and a second knob 4. One end of the body valve seat 1 is provided with a first stop ring 5, one side of the first stop ring 5 is provided with a sealing ring 21, the other end of the body valve seat 1 is provided with a movable locking ring 2, the body valve seat 1 is movably sleeved with a body valve core 3, one end of the body valve core 3 is integrally connected with a first knob 6, the other end of the body valve core 3 is detachably provided with a second knob 4, several first exhaust holes 7 and second exhaust holes 8 are correspondingly arranged at both ends of the body valve core 3 in a communicating manner, and both the first exhaust holes 7 and the second exhaust holes 8 are located outside both ends of the body valve seat 1, and sound-absorbing cotton is provided in both the first exhaust holes 7 and the second exhaust holes 8.
[0023] In this embodiment, by opening a hole in the hatch or bulkhead, a sealing ring 21 is sleeved onto the pipe valve seat 1, and the pipe valve seat 1 is installed in the hatch or bulkhead. After being tightly connected to one end of the pipe valve seat 1 by the movable locking ring 2, it is airtightly fixed on the hatch or bulkhead. Then, the pipe valve core 3 is inserted into the pipe valve seat 1, and after the second knob 4 is tightly connected to the pipe valve core 3, a pressure relief valve is formed. This pressure relief valve has a two-way operable exhaust and pressure relief function. That is to say, the personnel inside the cabin can operate the pressure relief emergently, and the personnel outside the cabin can also operate the pressure relief emergently, greatly reducing the emergency risk. Moreover, the noise generated by the pressure relief of the traditional single exhaust hole is too large, and the multiple first exhaust holes 7 and second exhaust holes 8 provided with sound-absorbing cotton inside can effectively reduce the noise generated during the pressure relief process and avoid the impact on and experience of the personnel inside the cabin during the pressure relief process.
[0024] Furthermore, a raised ring 9 is provided in the middle of the pipe valve core 3. The raised ring 9 is provided with a first external thread, and the inner wall of the pipe valve seat 1 is continuously provided with a first internal thread. The first external thread and the first internal thread are screwed together so that the pipe valve core 3 can rotate and expand relative to the pipe valve seat 1. In this way, whether inside or outside the cabin, the first knob 6 or the second knob 4 of the pipe valve core 3 can be twisted to rotate the entire pipe valve core 3, driving the first exhaust hole 7 or the second exhaust hole 8 to form an open or closed state relative to the bulkhead, thereby realizing the pressure relief inside the oxygen cabin.
[0025] Furthermore, a number of first rotating clamping surfaces 10 are provided on the side end surface of the first stop ring 5, and a number of second rotating clamping surfaces 12 are provided on the side end surface of the locking ring 2, which is convenient for installation, tightening and disassembly with a movable wrench.
[0026] Furthermore, a second external thread 13 is provided on the outer side of one end of the pipe valve seat 1, and a second internal thread 14 is provided on the inner side wall of the locking ring 2. The second external thread 13 and the second internal thread 14 are screwed together so that the pipe valve seat 1 and the locking ring 2 are threadedly and tightly connected, which is convenient for the installation and tightening of the locking ring 2.
[0027] Furthermore, a first threaded hole 15 is provided at the other end of the pipe valve core 3, and a number of second threaded holes 16 are provided at one end of the second knob 4. A set screw is provided for connecting the second threaded hole 16 and the first threaded hole 15 so that the pipe valve core 3 and the second knob 4 are tightly connected. It is convenient for the second knob 4 to be detachably installed on the pipe valve core 3 and for the operation of inserting the pipe valve core 3 into the pipe valve seat 1. Among them, the set screw is a small-sized screw.
[0028] Further, a plurality of first clamping surfaces 17 are provided on the side end surface of the first knob 6, and a plurality of second clamping surfaces 19 are provided on the side end surface of the second knob 4, which facilitates installation, tightening and disassembly with a movable wrench. First anti-slip stripes 18 are provided between every two adjacent first clamping surfaces 17, and second anti-slip stripes 20 are provided between every two adjacent second clamping surfaces 19, which facilitates manual knob operation.
[0029] In an embodiment of the installation operation, the pipe body valve seat 1 sleeved with the sealing ring 21 is inserted into the oxygen chamber wall installation hole pre-opened, and is threadedly fastened to one end of the pipe body valve seat 1 through the locking ring 2 to form an airtight connection; then the pipe body valve core 3 is inserted into the pipe body valve seat 1, and the first external thread and the first internal thread are screwed and engaged with each other. After the entire pipe body valve core 3 is screwed into the pipe body valve seat 1, the second knob 4 is sleeved on one end outside the oxygen chamber wall, and the second knob 4 is fastened by means of screw connection with the set screw. In this way, the first exhaust hole 7 is located inside the oxygen chamber wall for air intake, and the second exhaust hole 8 is located outside the oxygen chamber wall for exhaust. When using the oxygen chamber equipment, the first knob 6 abuts against the pipe body valve seat 1 to make the first exhaust hole 7 form a closed state inside the oxygen chamber wall. During pressure relief, the first knob 6 is manually rotated to make the first exhaust hole 7 form an open state with the inside of the oxygen chamber wall, and the pressure is relieved outward through the first exhaust hole 7 and the second exhaust hole 8 of the pipe body valve core 3, realizing the pressure relief of the oxygen chamber.
[0030] In summary, the present utility model provides an adjustable manual pressure relief valve, which is fixed on the cabin board through the sealing ring 21, the pipe body valve seat 1 and the locking ring 2. The pipe body valve core 3 is inserted into the pipe body valve seat 1 and is tightly connected with the second knob 4. During emergency pressure relief, the second knob 4 is rotated inside the cabin to make the second exhaust hole 8 form a conduction to discharge air outward, and the first knob 6 is also rotated outside the cabin to make the first exhaust hole 7 form a conduction to discharge air outward. It has a two-way rotation operation inside and outside the cabin, greatly reducing the emergency risk. A plurality of first exhaust holes 7 and second exhaust holes 8 are internally provided with sound-absorbing cotton, which can effectively reduce the noise generated during the pressure relief process. Moreover, the structure of this pressure relief valve is simple, and the manual pressure relief operation is very convenient.
[0031] The above describes the technical principle of the present utility model in combination with specific embodiments, which is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. Those skilled in the art can easily think of other specific embodiments of the present utility model without creative labor, and all of them will fall within the protection scope of the present utility model.
Claims
1. An adjustable manual pressure relief valve, characterized in that, It includes a pipe body valve seat, a locking ring, a pipe body valve core and a second knob. One end of the pipe body valve seat is provided with a first stop ring, one side of the first stop ring is provided with a sealing ring, the other end of the pipe body valve seat is provided with a movable locking ring, the pipe body valve seat is movably sleeved with a pipe body valve core, one end of the pipe body valve core is integrally connected with a first knob, the other end of the pipe body valve core is detachably provided with a second knob, both ends of the pipe body valve core are communicated and respectively provided with a plurality of first exhaust holes and second exhaust holes correspondingly, and both the first exhaust holes and the second exhaust holes are located outside both ends of the pipe body valve seat, and sound-absorbing cotton is arranged in both the first exhaust holes and the second exhaust holes.
2. The adjustable manual pressure relief valve according to claim 1, wherein A raised ring is arranged in the middle of the pipe body valve core, a first external thread is arranged on the raised ring, a first internal thread is continuously arranged on the inner wall of the pipe body valve seat, and the first external thread is screwed with the first internal thread so that the pipe body valve core can rotate and stretch relative to the pipe body valve seat.
3. The adjustable manual pressure relief valve according to claim 1, wherein, A plurality of first rotating clamping surfaces are arranged on the side end face of the first stop ring, and a plurality of second rotating clamping surfaces are arranged on the side end face of the locking ring.
4. The adjustable manual pressure relief valve according to claim 1, wherein A second external thread is arranged on the outer side of one end of the pipe body valve seat, a second internal thread is arranged on the inner side wall of the locking ring, and the second external thread is screwed with the second internal thread so that the pipe body valve seat and the locking ring are threadedly and firmly connected.
5. The adjustable manual pressure relief valve according to claim 1, characterized in that, A first threaded hole is arranged at the other end of the pipe body valve core, a plurality of second threaded holes are arranged at one end of the second knob, and a set screw is arranged to connect the second threaded holes and the first threaded hole so that the pipe body valve core and the second knob are firmly connected.
6. The adjustable manual pressure relief valve according to claim 1, wherein A plurality of first clamping surfaces are arranged on the side end face of the first knob, and first friction-increasing stripes are arranged between every two adjacent first clamping surfaces.
7. The adjustable manual pressure relief valve according to claim 1, wherein A plurality of second clamping surfaces are arranged on the side end face of the second knob, and second friction-increasing stripes are arranged between every two adjacent second clamping surfaces.