Magnetic type anti-blocking safety valve

Abstract

The utility model belongs to the technical field of safety valves, and particularly relates to a magnetic type anti-blocking safety valve which comprises a valve seat, a threaded portion is formed at the bottom of the valve seat, and a through air inlet hole is formed in the valve seat. The valve body is arranged on the valve seat, and an exhaust channel is formed in the valve body; the steel ball is arranged in the exhaust channel in the valve body; the magnet is arranged on the air inlet hole in the valve seat; wherein the air inlet can be communicated with the exhaust channel, and the steel ball blocks the joint of the exhaust channel and the air inlet under the magnetic force of the magnet.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety valves, and in particular relates to a magnetic suction type anti-blocking safety valve. Background Art

[0002] A pressure cooker is also called a pressure cooker or a pressure cooker. It is a kind of kitchen cooker. The pressure cooker uses the physical phenomenon that the boiling point of liquid increases under high pressure, so that water can reach a higher temperature without boiling, so as to speed up the efficiency of stewing food; it can be used to heat the food to above 100°C, and a pressure limiting valve and a safety valve need to be set on the pressure cooker. The function of the pressure limiting valve (pressure limiting device) is that when the pressure in the pot reaches the working pressure during the cooking process, the pressure limiting valve exhausts through the exhaust hole to keep the pressure in the pot within a certain range to achieve the purpose of cooking; the function of the safety valve is that during the cooking process, the pressure in the pot is too high due to the blockage of the exhaust pipe of the pressure limiting valve, and the exhaust is discharged through the safety valve to ensure the safety of the pressure cooker.

[0003] However, the traditional safety valve uses a spring to reset the valve core. When the spring is used for a long time or is blocked by foreign matter, the valve core cannot close the exhaust hole well. Utility Model Content

[0004] The utility model aims to solve the above-mentioned technical problems and provide an anti-blocking safety valve which has a simple structure and adopts magnetic suction to reset.

[0005] In view of this, the utility model provides a magnetic anti-blocking safety valve, comprising:

[0006] A valve seat, wherein a threaded portion is formed at the bottom of the valve seat, and an air inlet hole is formed therethrough;

[0007] A valve body, the valve body is arranged on the valve seat, and an exhaust passage is formed on the valve body;

[0008] Steel balls, which are arranged at the connection between the air inlet and the exhaust passage;

[0009] A magnet is disposed on the air inlet hole in the valve seat;

[0010] The air inlet hole can be connected to the exhaust channel, and the steel ball blocks the connection between the air inlet hole and the exhaust channel under the magnetic force of the magnet.

[0011] In the above technical solution, further, it also includes:

[0012] An anti-blocking nut connected to a threaded portion at the bottom of the valve seat;

[0013] The end of the valve anti-blocking nut away from the bottom of the valve seat is a closed end, and a plurality of exhaust grooves are arranged on the closed end, and the exhaust grooves are communicated with the air inlet hole.

[0014] In the above technical solution, further, it also includes:

[0015] The first sealing ring is arranged between the anti-blocking nut and the valve seat.

[0016] In the above technical solution, further, the valve seat is stepped, including a first step portion and a second step portion whose diameters decrease from top to bottom, and the threaded portion is formed on the second step portion;

[0017] The air inlet holes include the following which are connected in sequence and have increasing diameters:

[0018] The placement portion penetrates from the end surface of the second step portion at the bottom of the valve seat;

[0019] A connecting portion, the connecting portion penetrates from an end surface of a first stepped portion at an upper portion of the valve body;

[0020] The valve body is arranged on the connecting part, and the magnet is arranged on the placing part.

[0021] In the above technical solution, further, the magnet is annular, coaxially arranged with the placement portion and the middle portion is connected with the connecting portion.

[0022] In the above technical solution, further, the valve body is stepped, including a third step portion and a fourth step portion whose diameters decrease from top to bottom, and the fourth step portion is threadedly connected to the connecting portion;

[0023] The exhaust passage includes:

[0024] A receiving portion, the receiving portion penetrates from an end surface of a fourth step portion at a lower portion of the valve body;

[0025] Exhaust parts, a plurality of exhaust parts are evenly distributed on the side wall of the third step part on the upper part of the valve body according to the circumference and penetrate into the third step part to communicate with the receiving part;

[0026] The receiving portion is communicated with the bottom of the connecting portion.

[0027] In the above technical solution, further, the lower side of the connecting portion is in a cone shape with a smaller lower portion and a larger upper portion, and the steel ball is in sealing contact with the lower side of the connecting portion under normal conditions.

[0028] The beneficial effects of the utility model are:

[0029] 1. The magnetic suction method can prevent the safety valve from failing due to spring damage or obstruction by foreign matter;

[0030] 2. The first sealing ring provided can ensure the overall sealing effect of the safety valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the utility model;

[0032] Figure 2 It is a cross-sectional schematic diagram of the installation of the utility model;

[0033] The markings in the figure are: 1-valve seat, 2-valve body, 3-steel ball, 4-magnet, 5-anti-blocking nut, 6-first sealing ring, 9-receiving part, 10-exhaust part, 11-pot cover, 12-exhaust groove. DETAILED DESCRIPTION

[0034] 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.

[0035] Embodiment 1:

[0036] This embodiment provides a magnetic anti-blocking safety valve, including:

[0037] A valve seat 1, a threaded portion is formed at the bottom of the valve seat 1, and a penetrating air inlet hole is formed on the valve seat 1;

[0038] A valve body 2, the valve body 2 is arranged on the valve seat 1, and an exhaust passage is formed on the valve body 2;

[0039] Steel ball 3, which is arranged at the connection between the air inlet hole and the exhaust passage;

[0040] A magnet 4, wherein the magnet 4 is arranged on the air inlet hole in the valve seat 1;

[0041] The air inlet hole can be connected to the exhaust channel, and the steel ball 3 blocks the connection between the air inlet hole and the exhaust channel under the magnetic force of the magnet 4.

[0042] In the present technical solution, the suction force of the magnet 4 on the steel ball 3 is used to block the connection between the exhaust passage and the intake passage, thereby avoiding the safety valve failure due to damage to the spring or obstruction by foreign matter; and the spring is eliminated by magnetic attraction, thereby increasing the space in the intake hole and reducing the probability of blockage.

[0043] Embodiment 2:

[0044] This embodiment provides a magnetic anti-blocking safety valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] Also includes:

[0046] An anti-blocking nut 5, which is connected to a threaded portion at the bottom of the valve seat 1;

[0047] The end of the valve anti-blocking nut 5 away from the bottom of the valve seat 1 is a closed end, and a plurality of exhaust grooves 12 are arranged on the closed end, and the exhaust grooves 12 are communicated with the air inlet hole.

[0048] In the present technical solution, the anti-blocking nut 5 is provided to facilitate the installation of the valve seat 1 on the pot cover 11 and is convenient to disassemble, thereby reducing the difficulty of maintaining the safety valve in the later stage. The exhaust is carried out through the exhaust groove 12, thereby reducing the probability of the safety valve being blocked.

[0049] Embodiment 3:

[0050] This embodiment provides a magnetic anti-blocking safety valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] Also includes:

[0052] The first sealing ring 6 is arranged between the anti-blocking nut 5 and the valve seat 1 .

[0053] In the present technical solution, when the safety valve is installed, the valve seat 1 is inserted from the upper end of the pot cover 11, the anti-blocking nut 5 is connected to the valve seat 1 from the lower end of the pot cover 11, and the sealing ring is pressed between the valve seat 1 and the pot cover 11, thereby improving the connection strength between the valve seat 1 and the pot cover 11.

[0054] Embodiment 4:

[0055] This embodiment provides a magnetic anti-blocking safety valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] The valve seat 1 is stepped, including a first step portion and a second step portion whose diameters decrease from top to bottom, and the threaded portion is formed on the second step portion;

[0057] The air inlet holes include the following which are connected in sequence and have increasing diameters:

[0058] The placement portion 7 is inserted into the valve seat 1 from the end surface of the second step portion at the bottom thereof;

[0059] A connecting portion 8, the connecting portion 8 penetrates from the end surface of the first stepped portion on the upper portion of the valve body 2 and is connected to the placement portion 7;

[0060] The valve body 2 can be snap-fitted onto the connecting portion 8 , and the magnet 4 is disposed on the mounting portion 7 .

[0061] In this technical solution, the placement portion 7 is used to connect with the exhaust groove 12, and the exhaust groove 12 is connected to the inside of the pot, so that the air inlet can be connected to the inside of the pot, and the placement portion 7 is also used to place the magnet 4, and the connecting portion 8 provides installation space for the valve body 2.

[0062] Embodiment 5:

[0063] This embodiment provides a magnetic anti-blocking safety valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0064] The magnet 4 is annular, coaxially arranged with the placement portion 7 and the middle portion is connected with the exhaust slot 12 .

[0065] In the present technical solution, the annular magnet 4 can ensure good suction without blocking the placement portion 7, thereby ensuring the passage of gas.

[0066] Embodiment 6:

[0067] This embodiment provides a magnetic anti-blocking safety valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] The valve body 2 is stepped, including a third step portion and a fourth step portion whose diameters decrease from top to bottom, and the fourth step portion is threadedly connected to the connecting portion 8, and the end surface of the third step portion is spherical;

[0069] The exhaust passage includes:

[0070] A receiving portion 9, the receiving portion 9 penetrates from the end surface of the fourth step portion at the lower portion of the valve body 2 and extends into the third step portion;

[0071] The exhaust portion 10, a plurality of exhaust portions 10 are evenly distributed on the side wall of the third step portion on the upper part of the valve body 2 according to the circumference and penetrate into the third step portion to communicate with the receiving portion 9;

[0072] The receiving portion 9 is communicated with the bottom of the connecting portion 8 .

[0073] In the present technical solution, when the high-pressure gas reaches the entrance of the connecting portion 8, it will squeeze the steel ball 3 and lift up the steel ball 3, and then enter the receiving portion 9. After entering the receiving portion 9, the gas is discharged through the exhaust portion 10, thereby ensuring that the safety valve as a whole can achieve good pressure relief and ensure the safety of using the pot.

[0074] Embodiment 7:

[0075] This embodiment provides a magnetic anti-blocking safety valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0076] The lower side of the connecting portion 8 is in a conical shape with a smaller bottom and a larger top. Under normal conditions, the steel ball 3 is in sealing contact with the lower side of the connecting portion 8 .

[0077] In the present technical solution, the conical connection part 8 can make it easier for the steel ball 3 to contact and seal, thereby improving the sealing effect. The conical connection part 8 exerts a greater pressure on the steel ball 3 when the pressure in the pot is constant, thereby achieving a better safety protection effect. Under the action of the high-pressure gas, the connection part of the steel ball 3 enters the receiving part 9, thereby providing space for the steel ball to move upward, and the arrangement of the steel ball 3 does not block all the exhaust parts 10 when the pressure is released, thereby further ensuring the safety of the safety valve.

[0078] 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 magnetic anti-blocking safety valve, characterized in that: include: A valve seat (1), wherein a threaded portion is formed at the bottom of the valve seat (1), and a penetrating air inlet hole is formed on the valve seat (1); A valve body (2), wherein the valve body (2) is arranged on the valve seat (1), and an exhaust passage is formed on the valve body (2); A steel ball (3), wherein the steel ball (3) is located at the connection between the air inlet and the exhaust passage; A magnet (4), wherein the magnet (4) is arranged in the valve seat (1); The air inlet hole can be connected to the exhaust channel, and the steel ball (3) blocks the connection between the air inlet hole and the exhaust channel under the magnetic force of the magnet (4).

2. A magnetic anti-blocking safety valve according to claim 1, characterized in that: Also includes: An anti-blocking nut (5) is connected to the threaded portion at the bottom of the valve seat (1).

3. A magnetic anti-blocking safety valve according to claim 2, characterized in that: Also includes: A first sealing ring (6), wherein the first sealing ring (6) is arranged between the anti-blocking nut (5) and the valve seat (1).

4. A magnetic anti-blocking safety valve according to claim 2, characterized in that: The air inlet holes include the following which are connected in sequence and have increasing diameters: A placement portion (7), wherein the placement portion (7) penetrates from the bottom of the valve seat (1); A connecting portion (8), wherein the connecting portion (8) penetrates from the end surface of the first step portion at the upper portion of the valve body (2); The valve body (2) is arranged on the connecting portion (8), and the magnet (4) is arranged on the placing portion (7).

5. A magnetic anti-blocking safety valve according to claim 4, characterized in that: The magnet (4) is ring-shaped.

6. A magnetic anti-blocking safety valve according to claim 5, characterized in that: The exhaust passage comprises: A receiving portion (9), wherein the receiving portion (9) penetrates from the lower portion of the valve body (2); An exhaust portion (10), wherein a plurality of the exhaust portions (10) are evenly distributed on the side wall of the upper portion of the valve body (2) along a circumference and penetrate into and communicate with the receiving portion (9); The receiving portion (9) is communicated with the connecting portion (8).

7. A magnetic anti-blocking safety valve according to claim 6, characterized in that: The lower side of the connecting portion (8) is in a conical shape with a smaller bottom and a larger top. Under normal conditions, the steel ball (3) is in sealing contact with the lower side of the connecting portion (8).

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