Buckle type pressure release valve

Abstract

The utility model belongs to the technical field of pressure release valves, and particularly relates to a buckle type pressure release valve, which comprises a valve seat, a pressure release valve core, a pressure release valve core and a pressure release valve core, the valve body is arranged on the upper portion of the valve seat, and a pressure relief channel communicated with the exhaust hole is formed in the valve body; the valve core is arranged in the exhaust hole of the valve seat; the spring is arranged in the pressure relief channel of the valve body; the spring extends into the exhaust hole from the pressure relief channel and abuts against the valve element so that the valve element can abut against the exhaust hole, and the exhaust hole is blocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure relief valves, and in particular relates to a buckle type pressure relief valve. Background Art

[0002] A pressure cooker, also known as a pressure cooker, is a type of kitchen cooker. A pressure cooker uses the physical phenomenon that the boiling point of a liquid under a higher pressure is increased, allowing water to reach a higher temperature without boiling, thereby speeding up the efficiency of stewing food.

[0003] For the sake of safety in use, a safety valve and a pressure relief valve are usually provided on the lid of the pressure cooker. The safety valve is installed on the exhaust pipe of the lid and is used to push up the safety valve when the pressure in the pot is too high, thereby venting the air and giving an early warning. The pressure relief valve is used as a backup insurance when the safety valve fails. The fusible link originally used for pressure relief insurance is usually made of aluminum alloy material with a low melting point. After the safety valve fails, the pressure continues to increase and the temperature rises accordingly, which will cause the fusible link to melt, allowing the gas in the pot to be discharged from the fusible link, reducing the pressure in the pot, preventing explosion and improving safety.

[0004] Nowadays, most pressure cookers have switched to a spring and ball structure. When the pressure increases, the ball is pushed open to release air. A silicone valve body is used, and a spring and ball structure is used to improve the convenience and safety of using the pressure relief valve. However, the ball is in direct contact with the silicone valve body for sealing. The silicone valve body is located at the air outlet and is prone to deformation and aging, which can easily lead to a decrease in air tightness and poor stability. In addition, the existing pressure relief valve uses a threaded connection, which affects the convenience of assembly and subsequent maintenance. Utility Model Content

[0005] The utility model aims to provide a buckle-type pressure relief valve which is simple in structure and easy to maintain in view of the above-mentioned technical problems.

[0006] In view of this, the utility model provides a buckle type pressure relief valve, comprising:

[0007] A valve seat having a coaxially arranged exhaust hole;

[0008] The valve body is arranged on the upper part of the valve seat and has a pressure relief passage in the valve body which is connected with the exhaust hole;

[0009] A valve core, the valve core is arranged in the exhaust hole of the valve seat;

[0010] A spring, wherein the spring is arranged in a pressure relief passage of the valve body;

[0011] The spring extends from the pressure relief channel into the exhaust hole and abuts against the valve core to press the valve core against the exhaust hole and block the exhaust hole.

[0012] In the above technical solution, further, the valve body is snap-connected to the upper part of the exhaust hole of the valve seat.

[0013] In the above technical solution, further, it also includes:

[0014] The first sealing ring is arranged on one end of the valve core which abuts against the exhaust hole.

[0015] In the present technical solution, the provision of the first sealing ring can ensure the sealing effect of the valve core blocking the exhaust hole.

[0016] In the above technical solution, further, it also includes:

[0017] A locking nut is threadedly connected to the outside of the lower portion of the valve seat.

[0018] In the above technical solution, further, it also includes:

[0019] The second sealing ring is arranged between the locking nut and the valve seat.

[0020] In the above technical solution, further, the pressure relief channel includes:

[0021] An upper air channel, the upper air channel extending from the lower end of the valve body into the valve body;

[0022] A pressure relief hole extending inward from the side wall of the valve body and communicating with the middle and upper part of the upper air hole;

[0023] One end of the spring abuts against the bottom of the upper air channel, and the other end extends out of the upper air channel and abuts against the valve core.

[0024] In the above technical solution, further, the exhaust hole includes:

[0025] An air inlet passage, the air inlet passage extending from the lower end of the valve seat into the valve seat;

[0026] A fixed hole extending from the upper end of the valve seat into the valve seat and communicating with the air inlet hole;

[0027] A receiving hole is formed between the air inlet hole and the fixed hole, and the receiving hole is in the form of a cone;

[0028] A placement groove portion, the placement groove portion is formed at the connection between the receiving portion and the air inlet channel;

[0029] The first sealing ring is driven by the valve core to abut against the placement groove of the exhaust hole.

[0030] In the above technical solution, further, the valve core includes:

[0031] A lower air intake receiving portion, the cross section of which is a regular polygon and a chamfered portion is formed at the bottom;

[0032] A sealing receiving portion, wherein the cross-sectional diameter of the sealing receiving portion is larger than that of the lower air inlet receiving portion;

[0033] An upper support portion, wherein the cross-sectional diameter of the upper support portion is smaller than the sealing receiving portion;

[0034] The lower air intake receiving part is normally located in the air intake channel, the first sealing ring is sleeved on the lower air intake receiving part and abuts against one end of the sealing receiving part; one end of the spring is sleeved on the upper supporting part and abuts against the other end of the sealing receiving part.

[0035] The beneficial effects of the utility model are:

[0036] 1. The exhaust hole is blocked by the cooperation of the valve core and the spring, thereby achieving a good seal inside the pot;

[0037] 2. The valve body is connected by a snap-fit ​​connection, which can ensure the stability of the connection between the valve body and the valve seat and facilitate the assembly and subsequent maintenance of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model;

[0039] Figure 2 It is a cross-sectional schematic diagram of the installation of the utility model;

[0040] The markings in the figure are: 1-valve seat, 2-valve body, 3-valve core, 3a-lower air inlet receiving part, 3b-sealing receiving part, 3c-upper supporting part, 4-spring, 5-first sealing ring, 6-locking nut, 7-upper air channel, 8-pressure relief channel, 9-air inlet channel, 10-fixing channel, 11-receiving channel, 12-situation groove, 16-second sealing ring, 17-pot cover. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] Embodiment 1:

[0043] This embodiment provides a buckle-type pressure relief valve, including:

[0044] A valve seat 1, wherein the valve seat 1 is provided with a coaxially arranged exhaust hole;

[0045] The valve body 2 is arranged on the upper part of the valve seat 1, and the valve body 2 has a pressure relief passage communicating with the exhaust hole;

[0046] A valve core 3, wherein the valve core 3 is arranged in the exhaust hole of the valve seat 1;

[0047] Spring 4, spring 4 is arranged in the pressure relief channel of valve body 2;

[0048] The spring 4 extends from the pressure relief passage into the exhaust hole and abuts against the valve core 3 to press the valve core 3 against the exhaust hole and block the exhaust hole.

[0049] In the present technical solution, the valve body 2 and the valve seat 1 are both made of metal or high-strength plastic alloy, and the valve core 3 is made of metal material; the exhaust hole is blocked by the cooperation of the valve core 3 and the spring 4, thereby achieving a good seal inside the pot. When the pressure inside the pot reaches a certain level, the high pressure will lift the valve core 3 and connect the exhaust hole with the pressure relief channel, thereby achieving a good pressure relief work.

[0050] Embodiment 2:

[0051] This embodiment provides a snap-on pressure relief valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] In the above technical solution, further, the valve body 2 is snap-connected to the upper part of the exhaust hole of the valve seat 1 .

[0053] In the present technical solution, the valve body 2 is connected by a snap-fit ​​connection, thereby ensuring the stability of the connection between the valve body 2 and the valve seat 1 and facilitating the assembly and subsequent maintenance of the valve body 2 .

[0054] Embodiment 3:

[0055] This embodiment provides a snap-on pressure relief valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] Also includes:

[0057] The first sealing ring 5 is arranged on one end of the valve core 3 which is against the exhaust hole.

[0058] In the present technical solution, the provision of the first sealing ring 5 can ensure the sealing effect of the valve core 3 blocking the exhaust hole.

[0059] In the above technical solution, further, it also includes:

[0060] The locking nut 6 is threadedly connected to the outer side of the lower part of the valve seat 1.

[0061] In the present technical solution, during installation, the valve body 2 is inserted from the upper end of the pot cover 17 of the pressure cooker, and the locking nut 6 is threadedly connected to the bottom of the valve seat 1 from the lower end of the pot cover 17, so that the pressure relief valve is installed on the pot cover 17, thereby facilitating the installation of the pressure relief valve.

[0062] Embodiment 4:

[0063] This embodiment provides a buckle-type pressure relief valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features. It also includes:

[0064] The second sealing ring 16 is arranged between the locking nut 6 and the valve seat 1 .

[0065] In the present technical solution, after the pressure relief valve is installed, the second sealing ring 16 abuts between the valve seat 1 and the pot cover 17 , thereby ensuring the sealing effect of the connection between the valve seat 1 and the pot cover 17 .

[0066] Embodiment 5:

[0067] This embodiment provides a snap-on pressure relief valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] The pressure relief channels include:

[0069] An upper air channel 7, the upper air channel 7 extends from the lower end of the valve body 2 into the valve body 2;

[0070] A pressure relief hole 8, which extends inward from the side wall of the valve body 2 and communicates with the middle and upper part of the upper air hole 7;

[0071] One end of the spring 4 abuts against the bottom of the upper air channel 7 , and the other end extends out of the upper air channel 7 and abuts against the valve core 3 .

[0072] In the present technical solution, the upper air channel 7 is used to connect with the exhaust hole, so as to facilitate the entry of high-pressure gas, and the setting of the pressure relief channel 8 can facilitate the discharge of pressure; and the spring 4 resting against the bottom of the upper air channel 7 can ensure the stability of the placement of the spring 4 and reduce the displacement of the spring 4.

[0073] Embodiment 7:

[0074] This embodiment provides a snap-on pressure relief valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0075] The exhaust holes include:

[0076] An air inlet passage 9, the air inlet passage 9 extends from the lower end of the valve seat 1 into the valve seat 1;

[0077] A fixed hole 10, which extends from the upper end of the valve seat 1 into the valve seat 1 and communicates with the air inlet hole 9;

[0078] A receiving hole 11, which is formed between the air inlet hole 9 and the fixed hole 10, and has a conical surface;

[0079] A placement groove 12, which is formed at the connection between the receiving portion and the air inlet channel 9;

[0080] The first sealing ring 5 is driven by the valve core 3 to abut against the placement groove 12 of the exhaust hole.

[0081] In the present technical solution, the air inlet channel 9 can ensure that the exhaust hole is connected to the inside of the pot, and the fixing channel 10 is used to place and fix the valve body 2, and the conical receiving channel 11 can play a good guiding role when the valve core 3 is displaced, thereby ensuring that the valve core 3 can smoothly block the air inlet channel 9; and the placement groove 12 is used to seal contact with the first sealing ring 5, thereby ensuring the sealing effect of the first sealing ring 5 in contact between the valve body 2 and the valve core 3.

[0082] Embodiment 8:

[0083] This embodiment provides a buckle-type pressure relief valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The valve core 3 includes:

[0084] A lower air intake receiving portion 3a, the cross section of which is a regular polygon and a chamfered portion is formed at the bottom;

[0085] A sealing receiving portion 3b, wherein the cross-sectional diameter of the sealing receiving portion 3b is larger than that of the lower air intake receiving portion 3a;

[0086] An upper supporting portion 3c, wherein the cross-sectional diameter of the upper supporting portion 3c is smaller than that of the sealing receiving portion 3b;

[0087] The lower air intake receiving portion 3a is normally located in the air intake passage 9, the first sealing ring 5 is sleeved on the lower air intake receiving portion 3a and abuts against one end of the sealing receiving portion 3b; one end of the spring 4 is sleeved on the upper supporting portion 3c and abuts against the other end of the sealing receiving portion 3b.

[0088] In the present technical solution, the lower air intake receiving portion 3a is used to cooperate with the air intake channel 9, and is in the shape of a regular polygon and has a chamfered portion at the bottom to facilitate the high-pressure gas to enter the air intake channel 9. The sealing receiving portion 3b is used to cooperate with the first sealing ring 5 in a sealing manner, thereby playing a good role in limiting the first sealing ring 5, and the upper support portion 3c is set to better abut against one end of the spring 4.

[0089] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A snap-on pressure relief valve, characterized in that: include: A valve seat (1), wherein the valve seat (1) is provided with a coaxially arranged exhaust hole; A valve body (2), wherein the valve body (2) is arranged on the upper part of the valve seat (1), and the valve body (2) is provided with a pressure relief channel connected to the exhaust hole; A valve core (3), wherein the valve core (3) is arranged in the exhaust hole of the valve seat (1); A spring (4), wherein the spring (4) is arranged in the pressure relief channel of the valve body (2); The spring (4) extends from the pressure relief channel into the exhaust hole and abuts against the valve core (3) to press the valve core (3) against the exhaust hole; The valve body (2) is snap-connected to the upper part of the exhaust hole of the valve seat (1).

2. A snap-on pressure relief valve according to claim 1, characterized in that: Also includes: A first sealing ring (5), wherein the first sealing ring (5) is arranged on one end of the valve core (3) that is against the exhaust hole.

3. A snap-on pressure relief valve according to claim 1, characterized in that: Also includes: A locking nut (6) is threadedly connected to the outer side of the lower part of the valve seat (1).

4. A snap-on pressure relief valve according to claim 3, characterized in that: Also includes: A second sealing ring (16), wherein the second sealing ring (16) is arranged between the locking nut (6) and the valve seat (1).

5. The buckle-type pressure relief valve according to claim 1, characterized in that: The pressure relief channel comprises: an upper air passage (7), wherein the upper air passage (7) extends from the lower end of the valve body (2) into the valve body (2); A pressure relief channel (8), the pressure relief channel (8) extending inward from the side wall of the valve body (2) and communicating with the middle and upper part of the upper air channel (7); One end of the spring (4) abuts against the bottom of the upper air channel (7), and the other end extends out of the upper air channel (7) and abuts against the valve core (3).

6. A snap-on pressure relief valve according to claim 2, characterized in that: The exhaust hole comprises: An air inlet passage (9), wherein the air inlet passage (9) extends from the lower end of the valve seat (1) into the valve seat (1); A fixed hole (10), wherein the fixed hole (10) extends from the upper end of the valve seat (1) into the valve seat (1) and is in communication with the air inlet hole (9); A receiving hole (11), wherein the receiving hole (11) is formed between the air inlet hole (9) and the fixed hole (10), and the receiving hole (11) is in the form of a cone; A placement groove (12) is formed at the connection between the receiving portion and the air inlet passage (9).

7. A snap-on pressure relief valve according to claim 6, characterized in that: The valve core (3) comprises: A lower air intake receiving portion (3a), wherein the cross section of the lower air intake receiving portion (3a) is a regular polygon and a chamfered portion is formed at the bottom; A sealing receiving portion (3b), wherein the cross-sectional diameter of the sealing receiving portion (3b) is larger than that of the lower air intake receiving portion (3a); An upper supporting portion (3c), wherein the cross-sectional diameter of the upper supporting portion (3c) is smaller than that of the sealing receiving portion (3b).

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