Pressure balance valve structure

Abstract

The utility model is suitable for the technical field of pressure balance valves, and provides a pressure balance valve structure which comprises an installation shell, installation plates are fixedly connected to the two sides of the end of the installation shell, a plurality of installation holes are formed in the surfaces of the two installation plates, and a first cavity, a second cavity and a third cavity are formed in the installation shell. A first through groove is formed in the end of the mounting shell and communicates with the first cavity, a second through groove is formed between the second cavity and the third cavity in a communicating mode, a first communicating pipe is arranged on one side of the bottom of the mounting shell in a penetrating mode and communicates with the first cavity, and a second communicating pipe is arranged on the other side of the bottom of the mounting shell and communicates with the second cavity. And a second communicating pipe is arranged on the other side of the bottom of the mounting shell in a penetrating manner. By arranging the valve element structure, air pressure between the container and the outside can be balanced, so that the air pressure in the container can be automatically adjusted when being too high or too low, the balance pressure of the device can be adjusted, and the application range of the device can be widened.

Description

Technical Field

[0001] The utility model belongs to a pressure balancing valve, in particular to a pressure balancing valve structure. Background Art

[0002] The pressure balancing valve is an energy-saving product that uses the pressure changes of the medium itself to control itself and keep the pressure difference of the medium flowing through the controlled system unchanged. The refrigerator air pressure balancing valve is a valve with special functions, which is mainly used to balance the air pressure between the inside and outside of the refrigerator.

[0003] The Chinese patent publication number is CN218913868U, which discloses a refrigerator air pressure balancing valve, including a balancing valve body, a connecting pipe is threadedly connected to the upper right part of the balancing valve body; a valve seat is threadedly connected to the lower part of the balancing valve body; an air vent is opened above the inside of the valve seat; a movable column is inserted into the air vent; a limiting ring is threadedly connected to one end of the movable column, and a blocking cover is welded to the other end; an adjustable support frame structure is supported on the upper end of the blocking cover.

[0004] However, the above patent has the following shortcomings:

[0005] The above patent adjusts the setting of the supporting frame structure so that when the air pressure inside the refrigerator is as low as a specified level, the external pressure can push the blocking cover and the compression spring to balance the pressure, and then when the balancing valve body is installed in different ways, the blocking cover can seal the air vent in the normal state. However, the above patent does not have a corresponding structure to discharge the air in the refrigerator when the air pressure inside the refrigerator is too high, so as to keep the air pressure in the refrigerator balanced, thereby reducing the scope of application of the device. Utility Model Content

[0006] The utility model provides a pressure balancing valve structure, aiming to solve the problem that the above patent mentioned in the background technology has no corresponding structure to discharge the air in the refrigerator when the air pressure inside the refrigerator is too high, so as to keep the air pressure in the refrigerator balanced, thereby reducing the application scope of the device.

[0007] The utility model is implemented as follows: a pressure balancing valve structure comprises a mounting shell, mounting plates are fixedly connected to both sides of the mounting shell end, a plurality of mounting holes are provided on the surfaces of the two mounting plates, a first chamber, a second chamber and a third chamber are arranged in the mounting shell, a first through groove is provided at the end of the mounting shell, the first through groove is connected to the first chamber, a second through groove is provided to connect the second chamber and the third chamber, a first connecting pipe is penetrated on one side of the bottom of the mounting shell, the first connecting pipe is connected to the first chamber, a second connecting pipe is penetrated on the other side of the bottom of the mounting shell, the second connecting pipe is connected to the third chamber, a third connecting pipe is penetrated on the top of the mounting shell, the third connecting pipe is connected to the second chamber, and a valve core mechanism for balancing air pressure is provided inside the mounting shell.

[0008] Preferably, the valve core mechanism includes a sealing structure for sealing the first through groove and the second through groove respectively, and an adjusting structure for adjusting the sealing pressure of the sealing structure.

[0009] Preferably, the sealing structure comprises a fixed cylinder, the fixed cylinder is arranged between the second chamber and the third chamber, the fixed cylinder is arranged to pass through the middle of the mounting shell, the fixed cylinder is fixedly connected to the mounting shell, one end of the fixed cylinder passes through the first through groove, and the other end of the fixed cylinder passes through the second through groove;

[0010] A first butt ring is provided on one side of the outer circumference of the fixed cylinder, and a second butt ring is provided on the other side of the outer circumference of the fixed cylinder. A first sealing ring is provided on one side of the first butt ring. The first sealing ring is slidably sleeved on the outer circumference of the fixed cylinder. The first sealing ring corresponds to the first through groove. A first extrusion spring is provided between the first sealing ring and the first butt ring. The first extrusion spring is sleeved on the outer circumference of the fixed cylinder. One end of the first extrusion spring is butted against the first sealing ring, and the other end of the first extrusion spring is butted against the first butt ring.

[0011] A second sealing ring is provided on one side of the second butt ring, the second sealing ring is slidably sleeved on the outer circumference of the fixed tube, the second sealing ring corresponds to the second through groove, a second extrusion spring is provided between the second sealing ring and the second butt ring, the second extrusion spring is sleeved on the outer circumference of the fixed tube, one end of the second extrusion spring is against the second sealing ring, and the other end of the second extrusion spring is against the second butt ring;

[0012] The ends of the first connecting pipe and the second connecting pipe should be arranged inside the container. When the gas pressure inside the container is too high, the gas inside the container will enter the third chamber through the second connecting pipe. At the same time, the gas will push open the second sealing ring and enter the second chamber through the second through groove. Finally, the gas will be discharged through the third connecting pipe, so that the excess gas inside the container can be discharged.

[0013] When the external air pressure is greater than the air pressure in the container and the difference is too large, the external gas will push open the second sealing ring and enter the first chamber through the second through groove. Then the gas in the first chamber will enter the interior of the container through the first connecting pipe. The above method can balance the air pressure of the container and the outside.

[0014] Preferably, the adjustment structure comprises a through slot and a rotating rod, the through slot is formed on the outer circumference of the fixed cylinder, and the number of the through slots is set to two;

[0015] The rotating rod is arranged through the end of the fixed cylinder, one end of the rotating rod is rotatably connected to the inner wall of the fixed cylinder, and the other end of the rotating rod is fixedly connected to a knob, and two threaded sections are arranged on the outer circumference of the rotating rod, and the two threaded sections rotate in opposite directions, and the outer circumference of one of the threaded sections is threadedly connected to a first driving sleeve, and both sides of the first driving sleeve are fixedly connected to first connecting members, and the two first connecting members are arranged through the through-groove, and the ends of the two first connecting members are fixedly connected to the inner wall of the first collar;

[0016] The outer circumference of the other threaded section is threadedly connected to a second driving sleeve, and the second driving sleeve is fixedly connected to second connecting pieces on both sides, and the two second connecting pieces are both penetrated through the through groove, and the ends of the two second connecting pieces are fixedly connected to the inner wall of the second anvil ring;

[0017] A sealing member is provided through the middle of the rotating rod, and the outer periphery of the sealing member is fixedly connected to the fixing tube;

[0018] The rotating rod and the two threaded sections can be rotated by the knob, thereby respectively driving the first drive sleeve and the second drive sleeve to move synchronously. The first drive sleeve and the second drive sleeve can be moved synchronously relative to or away from each other by controlling the rotation direction of the knob.

[0019] In the above manner, the first driving sleeve can adjust the position of the first push ring through the first connecting piece, thereby adjusting the compression degree of the first push ring on the first extruder spring, so as to adjust the pressure required for the gas to push open the first sealing ring. At the same time, the second driving sleeve can adjust the position of the second push ring through the second connecting piece, thereby adjusting the compression degree of the second push ring on the second extruder spring, so as to adjust the pressure required for the gas to push open the second sealing ring.

[0020] Therefore, the balance pressure of the device can be adjusted by rotating the knob, which is helpful to improve the application range of the device.

[0021] Preferably, a first sealing ring is fixedly connected to the surface of the first sealing ring, the first sealing ring corresponds to the first through groove, and a second sealing ring is fixedly connected to the surface of the second sealing ring, the second sealing ring corresponds to the second sealing groove;

[0022] The sealing performance between the first sealing ring and the first through groove can be improved by providing the first sealing ring, and the sealing performance between the second sealing ring and the second through groove can be improved by providing the second sealing ring.

[0023] Compared with the prior art, the utility model has the following beneficial effects: a pressure balancing valve structure of the utility model:

[0024] By setting up a valve core structure, the air pressure of the container and the outside world can be balanced, so that the air pressure in the container can be automatically adjusted when it is too high or too low, and the balance pressure of the device can be adjusted by rotating the knob, which is beneficial to improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a cross-sectional view of the utility model;

[0027] Figure 3 It is a cross-sectional view of the installation shell of the utility model;

[0028] Figure 4 It is a cross-sectional view of the valve core structure of the utility model.

[0029] In the figure:

[0030] 1. Mounting shell; 11. Mounting plate; 12. Mounting hole; 13. First chamber; 14. Second chamber; 15. Third chamber; 16. First through groove; 17. Second through groove; 18. First connecting pipe; 19. Second connecting pipe; 110. Third connecting pipe;

[0031] 2. Valve core mechanism;

[0032] 21. Sealing structure; 211. Fixed cylinder; 212. First retaining ring; 213. Second retaining ring; 214. First sealing ring; 215. First extrusion spring; 216. Second sealing ring; 217. Second extrusion spring;

[0033] 22. Adjustment structure; 221. Through slot; 222. Rotation rod; 223. Knob; 224. Threaded section; 225. First drive sleeve; 226. First connecting member; 227. Second drive sleeve; 228. Second connecting member; 229. Sealing member;

[0034] 3. First sealing ring; 31. Second sealing ring. DETAILED DESCRIPTION

[0035] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0036] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0037] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] See also Figure 1-4 The utility model provides a technical solution: a pressure balancing valve structure, including a mounting shell 1, mounting plates 11 are fixedly connected to both sides of the mounting shell 1, and multiple mounting holes 12 are provided on the surfaces of the two mounting plates 11. A first chamber 13, a second chamber 14 and a third chamber 15 are arranged in the mounting shell 1. A first through groove 16 is provided at the end of the mounting shell 1, and the first through groove 16 is connected to the first chamber 13. A second through groove 17 is provided to communicate between the second chamber 14 and the third chamber 15. A first connecting pipe 18 is penetrated through one side of the bottom of the mounting shell 1, and the first connecting pipe 18 is connected to the first chamber 13. A second connecting pipe 19 is penetrated through the other side of the bottom of the mounting shell 1, and the second connecting pipe 19 is connected to the third chamber 15. A third connecting pipe 110 is penetrated through the top of the mounting shell 1, and the third connecting pipe 110 is connected to the second chamber 14. A valve core mechanism 2 for balancing air pressure is provided inside the mounting shell 1.

[0041] Furthermore, the valve core mechanism 2 includes a sealing structure 21 for sealing the first through groove 16 and the second through groove 17 respectively, and an adjusting structure 22 for adjusting the sealing pressure of the sealing structure 21 .

[0042] Further, the sealing structure 21 includes a fixed tube 211, which is arranged between the second chamber 14 and the third chamber 15, and passes through the middle of the mounting shell 1. The fixed tube 211 is fixedly connected to the mounting shell 1, and one end of the fixed tube 211 passes through the first through groove 16, and the other end of the fixed tube 211 passes through the second through groove 17;

[0043] A first butt ring 212 is provided on one side of the outer circumference of the fixed cylinder 211, and a second butt ring 213 is provided on the other side of the outer circumference of the fixed cylinder 211. A first sealing ring 214 is provided on one side of the first butt ring 212. The first sealing ring 214 is slidably sleeved on the outer circumference of the fixed cylinder 211. The first sealing ring 214 corresponds to the first through groove 16. A first extrusion spring 215 is provided between the first sealing ring 214 and the first butt ring 212. The first extrusion spring 215 is sleeved on the outer circumference of the fixed cylinder 211. One end of the first extrusion spring 215 is against the first sealing ring 214, and the other end of the first extrusion spring 215 is against the first butt ring 212.

[0044] A second sealing ring 216 is provided on one side of the second resisting ring 213. The second sealing ring 216 is slidably sleeved on the outer periphery of the fixed tube 211. The second sealing ring 216 corresponds to the second through groove 17. A second extrusion spring 217 is provided between the second sealing ring 216 and the second resisting ring 213. The second extrusion spring 217 is sleeved on the outer periphery of the fixed tube 211. One end of the second extrusion spring 217 is against the second sealing ring 216, and the other end of the second extrusion spring 217 is against the second resisting ring 213.

[0045] Furthermore, the adjustment structure 22 includes a through slot 221 and a rotating rod 222. The through slot 221 is formed on the outer periphery of the fixing tube 211. The number of the through slots 221 is set to two.

[0046] The rotating rod 222 is arranged through the end of the fixed cylinder 211, one end of the rotating rod 222 is rotatably connected to the inner wall of the fixed cylinder 211, and the other end of the rotating rod 222 is fixedly connected to the knob 223. Two threaded sections 224 are arranged on the outer periphery of the rotating rod 222, and the two threaded sections 224 rotate in opposite directions. The outer periphery of one of the threaded sections 224 is threadedly connected to a first driving sleeve 225, and both sides of the first driving sleeve 225 are fixedly connected to first connecting members 226. The two first connecting members 226 are arranged through the through-groove 221, and the ends of the two first connecting members 226 are fixedly connected to the inner wall of the first anvil 212.

[0047] The outer periphery of the other threaded section 224 is threadedly connected with a second driving sleeve 227, and both sides of the second driving sleeve 227 are fixedly connected with second connecting pieces 228, and the two second connecting pieces 228 are both arranged through the through groove 221, and the ends of the two second connecting pieces 228 are fixedly connected to the inner wall of the second anvil 213;

[0048] A sealing member 229 is provided through the middle of the rotating rod 222 , and the outer periphery of the sealing member 229 is fixedly connected to the fixing tube 211 .

[0049] Furthermore, a first sealing ring 3 is fixedly connected to the surface of the first sealing ring 214 , and the first sealing ring 3 corresponds to the first through groove 16 . A second sealing ring 31 is fixedly connected to the surface of the second sealing ring 216 , and the second sealing ring 31 corresponds to the second sealing groove.

[0050] The working principle and use process of this utility model:

[0051] The rotating rod 222 and the two threaded sections 224 can be rotated by the knob 223, thereby respectively driving the first driving sleeve 225 and the second driving sleeve 227 to move synchronously. The first driving sleeve 225 and the second driving sleeve 227 can be moved synchronously relative to or away from each other by controlling the rotation direction of the knob 223.

[0052] In the above manner, the first driving sleeve 225 can adjust the position of the first push ring 212 through the first connecting piece 226, thereby adjusting the compression degree of the first push ring 212 on the first extruder spring, so as to adjust the pressure required for the gas to push open the first sealing ring 214. At the same time, the second driving sleeve 227 can adjust the position of the second push ring 213 through the second connecting piece 228, thereby adjusting the compression degree of the second push ring 213 on the second extruder spring, so as to adjust the pressure required for the gas to push open the second sealing ring 216.

[0053] The ends of the first connecting pipe 18 and the second connecting pipe 19 should be arranged inside the container. When the gas pressure inside the container is too high, the gas inside the container will enter the third chamber 15 through the second connecting pipe 19. At the same time, the gas will push open the second sealing ring 216 and enter the second chamber 14 through the second through groove 17. Finally, the gas will be discharged through the third connecting pipe 110, so that the excess gas inside the container can be discharged.

[0054] When the external air pressure is greater than the air pressure in the container and the difference is too large, the external gas will push open the second sealing ring 216 and enter the first chamber 13 through the second through groove 17. Then the gas in the first chamber 13 will enter the interior of the container through the first connecting pipe 18. The above method can balance the air pressure of the container and the outside.

Claims

1. A pressure balancing valve structure, comprising a mounting shell (1), characterized in that: The mounting shell (1) has mounting plates (11) fixedly connected to both ends thereof, and the surfaces of the two mounting plates (11) are provided with a plurality of mounting holes (12). The mounting shell (1) is provided with a first chamber (13), a second chamber (14) and a third chamber (15). The mounting shell (1) has a first through groove (16) at the end thereof, the first through groove (16) being connected to the first chamber (13), a second through groove (17) being connected between the second chamber (14) and the third chamber (15), and the mounting shell (1) is provided with a plurality of mounting holes (12). 1) A first connecting tube (18) is provided through one side of the bottom, the first connecting tube (18) is connected to the first chamber (13), a second connecting tube (19) is provided through the other side of the bottom of the installation shell (1), the second connecting tube (19) is connected to the third chamber (15), a third connecting tube (110) is provided through the top of the installation shell (1), the third connecting tube (110) is connected to the second chamber (14), and a valve core mechanism (2) for balancing air pressure is provided inside the installation shell (1).

2. A pressure balancing valve structure as claimed in claim 1, characterized in that: The valve core mechanism (2) comprises a sealing structure (21) for sealing the first through groove (16) and the second through groove (17) respectively, and an adjusting structure (22) for adjusting the sealing pressure of the sealing structure (21).

3. A pressure balancing valve structure as claimed in claim 2, characterized in that: The sealing structure (21) comprises a fixed tube (211), the fixed tube (211) being arranged between the second chamber (14) and the third chamber (15), the fixed tube (211) penetrating the middle of the mounting shell (1), the fixed tube (211) being fixedly connected to the mounting shell (1), one end of the fixed tube (211) penetrating the first through groove (16), and the other end of the fixed tube (211) penetrating the second through groove (17); A first butt ring (212) is provided on one side of the outer circumference of the fixed cylinder (211), and a second butt ring (213) is provided on the other side of the outer circumference of the fixed cylinder (211). A first sealing ring (214) is provided on one side of the first butt ring (212). The first sealing ring (214) is slidably sleeved on the outer circumference of the fixed cylinder (211). The first sealing ring (214) corresponds to the first through groove (16). A first extrusion spring (215) is provided between the first sealing ring (214) and the first butt ring (212). The first extrusion spring (215) is sleeved on the outer circumference of the fixed cylinder (211). One end of the first extrusion spring (215) is butted against the first sealing ring (214), and the other end of the first extrusion spring (215) is butted against the first butt ring (212). A second sealing ring (216) is provided on one side of the second resisting ring (213). The second sealing ring (216) is slidably sleeved on the outer periphery of the fixed tube (211). The second sealing ring (216) corresponds to the second through groove (17). A second extrusion spring (217) is provided between the second sealing ring (216) and the second resisting ring (213). The second extrusion spring (217) is sleeved on the outer periphery of the fixed tube (211). One end of the second extrusion spring (217) is against the second sealing ring (216), and the other end of the second extrusion spring (217) is against the second resisting ring (213).

4. A pressure balancing valve structure as claimed in claim 3, characterized in that: The adjustment structure (22) comprises a through slot (221) and a rotating rod (222); the through slot (221) is formed on the outer circumference of the fixed cylinder (211); and the number of the through slots (221) is set to two; The rotating rod (222) is arranged to pass through the end of the fixed cylinder (211), one end of the rotating rod (222) is rotatably connected to the inner wall of the fixed cylinder (211), and the other end of the rotating rod (222) is fixedly connected to a knob (223). Two threaded sections (224) are arranged on the outer periphery of the rotating rod (222), and the two threaded sections (224) rotate in opposite directions. The outer periphery of one of the threaded sections (224) is threadedly connected to a first driving sleeve (225), and both sides of the first driving sleeve (225) are fixedly connected to first connecting members (226), and the two first connecting members (226) are arranged to pass through the through groove (221), and the ends of the two first connecting members (226) are fixedly connected to the inner wall of the first retaining ring (212); The outer circumference of the other threaded section (224) is threadedly connected to a second drive sleeve (227), and both sides of the second drive sleeve (227) are fixedly connected to second connecting pieces (228), and the two second connecting pieces (228) are both arranged to penetrate the through-groove (221), and the ends of the two second connecting pieces (228) are fixedly connected to the inner wall of the second retaining ring (213); A sealing member (229) is provided through the middle of the rotating rod (222), and the outer periphery of the sealing member (229) is fixedly connected to the fixing cylinder (211).

5. A pressure balancing valve structure as claimed in claim 3, characterized in that: A first sealing ring (3) is fixedly connected to the surface of the first sealing ring (214), and the first sealing ring (3) corresponds to the first through groove (16); a second sealing ring (31) is fixedly connected to the surface of the second sealing ring (216), and the second sealing ring (31) corresponds to the second sealing groove.

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