Pressure relief valve
By designing a pressure relief valve, which includes the pressure -loving mechanism and pressure regulation, the problem that the existing pressure cooker's pressure removal valve cannot be adjusted, and the flexibility of the pressure cooker works under different pressures to avoid damage to the equipment.
Patent Information
- Application Number
- CN202421013142.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing pressure cooker pressure relief valve cannot adjust the pressure, which causes the pressure cooker to be unable to adapt to different pressure needs when handling different foods, which can easily cause damage.
A pressure removal valve including the pressure leakage mechanism and the regulation of the pressure regulation is designed. The pressure leakage mechanism uses the structure between the valve cap and the valve body to remove the pressure to remove the pressure to the pressure warehouse. The cooperation of elastic pieces can regulate different work pressure.
The flexibility of the pressure cooker under different pressures, and avoiding the damage caused by the unable to regulate the pressure of the pressure cooker, providing multiple work pressure options.
Smart Images
Figure CN222416206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure relief of pressure cookers, in particular to a pressure relief valve. Background Art
[0002] As cooking appliances, pressure cookers and electric pressure cookers require internal pressure to be increased during operation, and pressure relief is required during operation. For different foods, pressure cookers need to work at different pressures. Currently, the pressure relief valves for pressure cookers on the market can only provide one working pressure and cannot adjust the pressure relief pressure of the pressure cooker, causing damage to the pressure cooker. Utility Model Content
[0003] The purpose of the utility model is to provide a pressure relief valve, which can solve at least one of the above technical problems. The technical solution of the utility model is as follows:
[0004] A pressure relief valve comprises: a cover carrier and an inner cover, wherein a pressure relief chamber is provided on the cover carrier, a mounting hole is provided on the inner cover, a valve cover is mounted on the mounting hole, a valve body is sealingly provided on the valve cover, a pressure limiting elastic member is provided on the valve cover, a pressure relief mechanism is provided between the valve cover and the valve body, and a pressure regulating part is provided on the valve body.
[0005] Furthermore, the pressure relief mechanism includes a first placement cavity arranged on the valve cover, a first valve core is arranged in the first placement cavity, the valve cover is in a bolt shape, the pressure-limiting elastic member is arranged in the first placement cavity, a first air outlet hole that can be connected to the first placement cavity is arranged under the valve cover, and a first exhaust hole is arranged on the valve body.
[0006] Furthermore, the pressure relief mechanism includes a plurality of second placement cavities spaced apart on the valve cover, each of the second placement cavities is provided with a second valve core, each of the pressure-limiting elastic members is provided in the second placement cavity, and a second exhaust hole is provided on the valve body.
[0007] Furthermore, the pressure relief mechanism includes a third placement cavity arranged on the valve cover, a third valve core is arranged in the third placement cavity, a placement groove is arranged on the third valve core, the pressure-limiting elastic member is arranged in the placement groove, a plurality of third air outlet holes are penetrated on the valve cover, and a third exhaust hole is arranged on the valve body.
[0008] Furthermore, the pressure regulating part includes a plurality of grooves arranged on the valve body, the grooves are staggered and connected to each other, a pressure regulating rod is movably inserted on the valve body, a baffle is fixed at the lower end of the pressure regulating rod, and an insertion shaft is fixed on both sides of the baffle, the insertion shaft is arranged in the groove, and the pressure-limiting elastic member is arranged between the baffle and the first placement cavity.
[0009] Furthermore, the pressure regulating part includes a first pressure regulating cover fixed below the valve cover, and a first through hole that can communicate with the second placement cavity is penetrated through the first pressure regulating cover.
[0010] Furthermore, the pressure regulating part includes a second screw rod movably inserted on the valve cover, a second nut is threadedly provided at the upper end of the second screw rod, a second pressure regulating cover is fixed at the lower end of the second screw rod below the valve cover, a second through hole that can be connected to the third air outlet is provided on the second pressure regulating cover, a threaded hole is transversely provided on the second pressure regulating cover, a top column is threadedly provided in the threaded hole, a steel ball is provided in the threaded hole, a spring is connected between the steel ball and the top column, and a slot is provided below the valve cover.
[0011] In summary, the beneficial effects of the present invention compared with the prior art are as follows:
[0012] The utility model provides a pressure relief valve, which, when in use, relieves the pressure of a pressure cooker to outside a pressure relief chamber through a pressure relief mechanism provided between a valve cover and a valve body, and simultaneously adjusts different working pressures through a pressure regulating part. Compared with the prior art, the utility model can provide multiple working pressures and adjust the pressure relief pressure of the pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a half-section schematic diagram of the first embodiment of the utility model.
[0014] Figure 2 It is a half-section schematic diagram of the second embodiment of the utility model.
[0015] Figure 3 This is one of the half-section schematic diagrams of the third embodiment of the present utility model.
[0016] Figure 4 This is the second half-section schematic diagram of the third embodiment of the utility model.
[0017] Figure 5 This is a schematic diagram of the first embodiment of the utility model.
[0018] Figure 6 This is a schematic diagram of an exploded view of the second embodiment of the present utility model.
[0019] Figure 7 This is a schematic diagram of the third embodiment of the present utility model.
[0020] Explanation of reference numerals: 1. cover carrier; 2. inner cover; 3. pressure relief chamber; 4. mounting hole; 5. valve cover; 6. valve body; 7. pressure limiting elastic member; 100. pressure relief mechanism; 200. pressure regulating part; 101. first placement cavity; 102. first valve core; 103. first air outlet; 104. first exhaust hole; 105. second placement cavity; 106. second valve core; 108. second exhaust hole; 109. third placement cavity; 110. third Valve core; 111, placement groove; 112, third air outlet; 113, third air outlet; 201, slot; 202, pressure regulating rod; 203, baffle; 204, plug shaft; 207, first pressure regulating cover; 208, first through hole; 209, second screw rod; 210, second nut; 211, second pressure regulating cover; 212, second through hole; 213, threaded hole; 214, top column; 215, steel ball; 216, spring; 217, slot. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods:
[0022] like Figures 1 to 7 A pressure relief valve is shown, characterized in that it includes: a cover carrier 1 and an inner cover 2, a pressure relief chamber 3 is provided on the cover carrier 1, a mounting hole 4 is provided on the inner cover 2, a valve cover 5 is installed on the mounting hole 4, a valve body 6 is sealed on the valve cover 5, a pressure limiting elastic member 7 is provided on the valve cover 5, a pressure relief mechanism 100 is provided between the valve cover 5 and the valve body 6, and a pressure regulating part 200 is provided on the valve body 6.
[0023] A pressure relief valve of the above structure, when in use, releases the pressure of the pressure cooker to the outside of the pressure relief chamber 3 through the pressure relief mechanism 100 provided between the valve cover and the valve body, and at the same time adjusts different working pressures through the pressure regulating part 200. Compared with the prior art, it can provide multiple working pressures and adjust the pressure relief pressure of the pressure cooker.
[0024] like Figure 1 and 5 As shown, in some embodiments of the utility model, the pressure relief mechanism 100 includes a first placement cavity 101 arranged on the valve cover 5, a first valve core 102 is arranged in the first placement cavity 101, the valve cover 5 is in a bolt shape, the pressure-limiting elastic member 7 is arranged in the first placement cavity 101, and a first air outlet 103 that can communicate with the first placement cavity 101 is provided below the valve cover 5, and a first exhaust hole 104 is provided on the valve body 6.
[0025] It should be noted that the pressure regulating part 200 includes a plurality of slots 201 arranged on the valve body 6, and the slots 201 are staggered and connected to each other. A pressure regulating rod 202 is movably inserted on the valve body 6, and a baffle 203 is fixed at the lower end of the pressure regulating rod 202. Insert shafts 204 are fixed on both sides of the baffle 203, and the insert shafts 204 are arranged in the slots 201. The pressure-limiting elastic member 7 is arranged between the baffle 203 and the first placement cavity 101.
[0026] When a pressure relief valve using the above structure is in operation, the first valve core 102 has a first air outlet 103 on the valve cover 5 that is sealed with each other. The sealing cooperation can be a conical surface, a spherical surface, a flat surface, or a raised annular surface that is sealed on the first air outlet 103. When the first valve core 102 is pressed against the first exhaust hole 103 by the pressure-limiting elastic member 7 (which can be a metal spring, a disc-shaped spring sheet, or other non-metallic elastic bodies such as silicone), steam can be prevented from being discharged from the first air outlet 103 on the valve cover 5. When the pressure of the steam is too high, the steam presses the first valve core 102 upwards, causing the pressure-limiting elastic member 7 to Component 7 is deformed upward, and steam is discharged to the first exhaust hole 104 through the first exhaust hole 103. When adjusting the pressure, the user rotates the pressure regulating rod 202, so that the pressure regulating rod 202 drives the baffle 203 to rotate, and the baffle 203 rotates the plug shaft 204 to the connection point of the slot 201. At this time, the user presses the pressure regulating rod 202 downward to move the baffle 203 down to another slot 201, and then the user rotates the pressure regulating rod 202 to insert the plug shaft 204 into the other slot 201, so that the pressure limiting elastic component provides different pressures to the valve core, and sets different working pressures for the pressure cooker.
[0027] like Figure 2 and 6 As shown, in some embodiments of the utility model, the pressure relief mechanism 100 includes a plurality of second placement cavities 105 arranged at intervals on the valve cover 5, a second valve core 106 is provided in each of the second placement cavities 105, each of the pressure-limiting elastic members 7 is arranged in the second placement cavity 105, and a second exhaust hole 108 is provided on the valve body 6.
[0028] It should be noted that the pressure regulating part 200 includes a first pressure regulating cover 207 fixed below the valve cover 5 , and a first through hole 208 communicating with the second exhaust hole 108 is penetrated through the first pressure regulating cover 207 .
[0029] When a pressure relief valve using the above structure is in operation, during use, multiple pressure-limiting elastic parts 7 are provided in the multiple second placement cavities 105 on the valve cover 5. When the steam is depressurized, the pressure generated drives the second valve core 106 to move upward, causing each of the pressure-limiting elastic parts 7 to deform, and the steam is discharged to the second exhaust hole 108 through the first through hole 208.
[0030] like Figure 3 , 4 As shown in FIG. 7 , in some embodiments of the utility model, the pressure relief mechanism 100 includes a third placement cavity 109 arranged on the valve cover 5, a third valve core 110 is arranged in the third placement cavity 109, a placement groove 111 is arranged on the third valve core 110, the pressure-limiting elastic member 7 is arranged in the placement groove 111, a plurality of third air outlet holes 112 are penetrated on the valve cover 5, and a third exhaust hole 113 is arranged on the valve body 6.
[0031] It should be noted that the pressure regulating part 200 includes a second screw 209 movably inserted on the valve cover 5, a second nut 210 is threadedly provided on the upper end of the second screw 209, a second pressure regulating cover 211 is fixed to the lower end of the second screw 209 below the valve cover 5, a first through hole 212 that can be connected to the third air outlet 112 is provided on the second pressure regulating cover 211, a threaded hole 213 is transversely provided on the second pressure regulating cover 211, a top column 214 is threadedly provided in the threaded hole 213, a steel ball 215 is provided in the threaded hole 213, a spring 216 is connected between the steel ball 215 and the top column 214, and a slot 217 is provided below the valve cover 5.
[0032] When a pressure relief valve with the above structure is in operation, a second pressure regulating cover 211 is arranged under the valve cover 5, and a second through hole 212 is arranged on the second pressure regulating cover 211. When using the pressure cooker, the user can choose to connect the second through hole 212 with the required third air outlet 112 according to the required working pressure, and the remaining third air outlet 112 will be blocked by the second pressure regulating cover 211 and cannot be exhausted. The second pressure regulating cover 211 is fixed to the valve cover 5 by the second nut 210. The second pressure regulating cover 211 is provided with a threaded part in the horizontal direction. Hole 213, a steel ball 215 is installed in the threaded hole 213, and the steel ball 215 is supported by a spring 216. The user twists the top column 214 to adjust the pressure of the spring 216 on the steel ball 215. A groove 217 is provided under the valve cover 5, and the spring 216 presses the steel ball 215 into the groove 217. In this way, when the second pressure regulating cover 211 is rotated, the steel ball 215 can sink into the groove 217 provided under the valve cover 5, thereby realizing the positioning of the second pressure regulating cover 211 to prevent the second pressure regulating cover 211 from shifting and causing inaccurate pressure limiting.
[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A pressure relief valve, characterized in that: include: A cover carrier (1) and an inner cover (2), wherein a pressure relief chamber (3) is provided on the cover carrier (1), a mounting hole (4) is provided on the inner cover (2), a valve cover (5) is mounted on the mounting hole (4), a valve body (6) is provided on the valve cover (5) in a sealing manner, a pressure-limiting elastic member (7) is provided on the valve cover (5), a pressure relief mechanism (100) is provided between the valve cover (5) and the valve body (6), and a pressure regulating portion (200) is provided on the valve body (6).
2. A pressure relief valve according to claim 1, characterized in that The pressure relief mechanism (100) comprises a first placement cavity (101) arranged on a valve cover (5), a first valve core (102) being arranged in the first placement cavity (101), the valve cover (5) being in the shape of a bolt, the pressure-limiting elastic member (7) being arranged in the first placement cavity (101), a first air outlet (103) being communicable with the first placement cavity (101) being arranged below the valve cover (5), and a first air exhaust hole (104) being arranged on the valve body (6).
3. A pressure relief valve according to claim 1, characterized in that The pressure relief mechanism (100) comprises a plurality of second placement cavities (105) arranged at intervals on the valve cover (5), a second valve core (106) being arranged in each of the second placement cavities (105), each of the pressure-limiting elastic members (7) being arranged in the second placement cavity (105), and a second exhaust hole (108) being arranged on the valve body (6).
4. A pressure relief valve according to claim 1, characterized in that The pressure relief mechanism (100) comprises a third placement cavity (109) arranged on the valve cover (5), a third valve core (110) arranged in the third placement cavity (109), a placement groove (111) provided on the third valve core (110), the pressure-limiting elastic member (7) arranged in the placement groove (111), a plurality of third air outlet holes (112) penetrating the valve cover (5), and a third air exhaust hole (113) provided on the valve body (6).
5. A pressure relief valve according to claim 2, characterized in that The pressure regulating portion (200) comprises a plurality of slots (201) arranged on the valve body (6), wherein the slots (201) are arranged staggered and connected to each other, a pressure regulating rod (202) is movably inserted into the valve body (6), a baffle (203) is fixedly provided at the lower end of the pressure regulating rod (202), an insert shaft (204) is fixedly provided on both sides of the baffle (203), and the insert shaft (204) is arranged in the slot (201), and the pressure limiting elastic member (7) is arranged between the baffle (203) and the first placement cavity (101).
6. A pressure relief valve according to claim 3, characterized in that The pressure regulating portion (200) comprises a first pressure regulating cover (207) fixed below the valve cover (5), and a first through hole (208) that can communicate with the second placement cavity (105) is penetrated through the first pressure regulating cover (207).
7. A pressure relief valve according to claim 4, characterized in that The pressure regulating part (200) comprises a second screw rod (209) movably plugged into the valve cover (5), a second nut (210) is threadedly provided at the upper end of the second screw rod (209), a second pressure regulating cover (211) is fixed at the lower end of the second screw rod (209) below the valve cover (5), a second through hole (212) which can communicate with the third air outlet (112) is provided on the second pressure regulating cover (211), a threaded hole (213) is transversely provided on the second pressure regulating cover (211), a top column (214) is threadedly provided in the threaded hole (213), a steel ball (215) is provided in the threaded hole (213), a spring (216) is connected between the steel ball (215) and the top column (214), and a clamping groove (217) is provided below the valve cover (5).