A seal for a multi-port valve and a multi-port valve

Abstract

The utility model discloses a kind of sealing element and multi-way valve for multi-way valve, the sealing element includes sealing inner ring and sealing outer ring, sealing outer ring is arranged at the outer periphery of sealing inner ring, there is interval between the sealing inner ring and sealing outer ring and is connected by multiple convex ribs, the thickness of sealing inner ring is less than the thickness of sealing outer ring;Including multi-way valve body, the sealing groove for placing sealing element is set up in the top of the multi-way valve body;Compared with the sealing inner ring in prior art sealing element, sealing outer ring thickness is consistent, and the utility model compared with prior art only reduces the thickness of sealing inner ring;When multi-way valve is used, due to the different compression amount of sealing inner ring and sealing outer ring, still can guarantee the sealing of flow channel mouth;While reducing the reaction force generated by sealing inner ring to multi-way valve body, reduce the deformation degree of valve body bottom, improve inner leakage sealing effect, also reduce water valve opening torque, improve actuator life, reduce actuator cost.

Description

Technical Field

[0001] This utility model relates to the field of sealing components, specifically to a sealing component for a multi-way valve and a multi-way valve. Background Technology

[0002] Existing multi-way valves have a seal on top, and the seal has a uniform thickness. However, during the use of the multi-way valve, the reaction force generated by the inner ring of the seal on the bottom of the valve body due to sealing can easily cause the valve body to deform, thereby affecting the sealing effect. To address this, we propose a new type of seal for multi-way valves. Utility Model Content

[0003] The purpose of this invention is to provide a sealing element and a multi-way valve for use in multi-way valves, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides a sealing element for a multi-way valve, offering the following technical solution:

[0005] The sealing element includes an inner sealing ring and an outer sealing ring. The outer sealing ring is disposed on the outer periphery of the inner sealing ring. There is a gap between the inner sealing ring and the outer sealing ring, and they are connected by multiple ribs. The thickness of the inner sealing ring is less than the thickness of the outer sealing ring.

[0006] Preferably, the inner sealing ring includes a first sealing ring and a second sealing ring arranged coaxially, the second sealing ring being disposed on the outer periphery of the first sealing ring, and multiple ribs being provided between the first sealing ring and the second sealing ring.

[0007] Preferably, multiple limiting blocks are evenly provided on both the inner and outer sides of the sealing outer ring.

[0008] Preferably, the seal is made of rubber.

[0009] This utility model discloses a multi-way valve, which provides the following technical solution: including the above-mentioned sealing element;

[0010] Preferably, it includes a multi-way valve body, the top of which has a sealing groove for placing a seal.

[0011] Preferably, the outer sealing ring is interference-fitted with the sealing groove, and the inner sealing ring is clearance-fitted with the sealing groove.

[0012] Preferably, the thickness of the inner sealing ring is greater than the depth of the sealing groove.

[0013] Preferably, a plurality of positioning seats are evenly distributed around the outer periphery of the multi-way valve body, and the plurality of positioning seats are used for fixing with external connecting parts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Compared to existing technologies where the inner and outer sealing rings of the sealing element have the same thickness, this invention only reduces the thickness of the inner sealing ring. When used in a multi-way valve, the different compression amounts of the inner and outer sealing rings still ensure the sealing of the flow passage. At the same time, it reduces the reaction force generated by the inner sealing ring on the multi-way valve body, reduces the degree of deformation at the bottom of the valve body, improves the internal leakage sealing effect, and also reduces the valve opening torque, extends the actuator life, and reduces the actuator cost.

[0016] Secondly, by reducing the thickness of the inner sealing ring, the amount of rubber used is reduced, resulting in lower costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sealing component structure in this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the multi-way valve in this utility model;

[0019] Figure 3 This is a schematic diagram of the multi-way valve body structure in this utility model;

[0020] Figure 4 for Figure 2 A planar view;

[0021] In the figure: 1. Seal; 2. Multi-way valve body; 12. Inner sealing ring; 13. Outer sealing ring; 14. Limiting block; 15. Rib; 121. First sealing ring; 122. Second sealing ring; 21. Sealing groove; 22. Positioning shaft; 23. Positioning seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution for a sealing element for a multi-way valve: the sealing element 1 includes a sealing inner ring 12 and a sealing outer ring 13 arranged coaxially. The sealing outer ring 13 is disposed on the outer periphery of the sealing inner ring 12. There is a gap between the sealing inner ring 12 and the sealing outer ring 13 and they are connected by multiple radially distributed ribs 15. The thickness of the sealing inner ring 12 is less than the thickness of the sealing outer ring 13, and the sealing inner ring 12, the sealing outer ring 13, and the ribs 15 form multiple independent flow channels.

[0024] The sealing inner ring 12, sealing outer ring 13, and rib 15 work together to form multiple independent flow channels. When liquid is injected into the flow channels, the sealing outer ring prevents liquid from leaking outward. The sealing inner ring 12 and rib 15 seal between the internal flow channels, ensuring independent flow at the flow channels and preventing leakage between adjacent flow channels, thus ensuring the sealing effect of the multi-way valve.

[0025] Secondly, when using a multi-way valve, the force exerted by the outer sealing ring on the valve body can be supported by the bottom side wall of the valve body to prevent deformation; however, the inner sealing ring acts directly on the middle of the multi-way valve body, which is suspended at the bottom without support, making it more prone to deformation due to elasticity. In this invention, the thickness of the outer sealing ring in the existing sealing element is not changed, only the thickness of the inner sealing ring is reduced. When the multi-way valve is in use, the compression amounts of the inner and outer sealing rings are different, which ensures the sealing of the flow channel, reduces the elasticity generated on the multi-way valve body, reduces the degree of deformation at the bottom of the valve body, and improves the sealing effect; it also reduces the valve opening torque, extends the actuator life, and reduces the actuator cost; at the same time, by reducing the thickness of the inner sealing ring, the amount of rubber material used is reduced, resulting in lower costs.

[0026] In a further embodiment, the inner sealing ring 12 includes a first sealing ring 121 and a second sealing ring 122 coaxially arranged. The second sealing ring 122 is spaced apart on the outer periphery of the first sealing ring 121. Multiple ribs 15 are arranged radially between the first sealing ring 121 and the second sealing ring 122. The ribs 15 divide the area between the first sealing ring 121 and the second sealing ring 122 into multiple independent liquid channels.

[0027] This means that by dividing the liquid into multiple independent liquid channels, the liquid can flow simultaneously through multiple different flow ports, thus achieving the purpose of a multi-way valve.

[0028] In a further embodiment, a plurality of limiting blocks 14 are evenly arranged on the inner and outer sidewalls of the sealing outer ring 13. The limiting blocks 14 are made of rubber. That is, the limiting blocks 14 are used to stably limit the sealing outer ring 13 on the multi-way valve body 2 and keep it in a vertical state. That is, when the multi-way valve body 2 is fixed to the external connecting parts, it is avoided that the sealing outer ring 13 will tilt on the multi-way valve body 2 due to compression, thus affecting the sealing effect.

[0029] In a further embodiment, the sealing element 1 is made of rubber so that when the multi-way water valve is connected to the outside, the sealing element 1 is deformed by compression, and the liquid channel sidewall is better supported when the liquid flows, preventing the liquid from leaking outward.

[0030] This utility model discloses a multi-way valve, which includes the aforementioned sealing element and a multi-way valve body 2. The top of the multi-way valve body 2 has a sealing groove 21 for placing the sealing element 1; that is, the sealing element 2 is limited to a certain position so as to seal the liquid passage.

[0031] In a further embodiment, the sealing groove 21 includes a sealing outer groove corresponding to the sealing outer ring 13, and the sealing outer ring 13 is interference-fitted into the sealing outer groove by limiting blocks 14 provided on both sides; the sealing groove 21 also includes a sealing inner groove corresponding to the sealing inner ring 12, and the sealing inner ring 12 and the sealing inner groove are clearance-fitted.

[0032] The sealing outer ring 13 is vertically limited within the sealing outer groove by the limiting block 14, preventing it from tipping over due to external pressure and affecting the sealing effect. At the same time, the sealing inner ring 12 is fitted with the sealing inner groove through a gap, so that even if the sealing inner ring 12 is installed on the multi-way valve body 2 and the multi-way valve is not connected to the external connector, the sealing inner ring 12 does not compress the multi-way valve body 2, reducing the possibility of deformation of the multi-way valve body and providing a sealing effect.

[0033] In a further embodiment, the thickness of the outer sealing ring 13 is greater than the thickness of the outer sealing groove, and the thickness of the inner sealing ring 12 is greater than the thickness of the inner sealing groove. This ensures that when connected to the external connector of the multi-way valve body 2, the sealing element 1 is in a compressed state because it is higher than the sealing groove 21, causing the sealing element 1 to undergo elastic deformation to achieve a sealing effect. At the same time, because the thickness of the inner sealing ring 12 is less than that of the outer sealing ring 13, when the external connector compresses it, the deformation of the inner sealing ring 12 is less than that of the outer sealing ring 13, further avoiding the deformation of the bottom of the valve body due to excessive reaction force of the inner sealing ring 12, which would affect the internal leakage seal.

[0034] In a further embodiment, a plurality of positioning seats 23 are evenly distributed on the outer periphery of the multi-way valve body 2. The plurality of positioning seats 23 are used to connect and fix with external connecting parts. The positioning seats 23 are provided with threads and also include a screw rod, which can be threadedly connected to the positioning seats through the external connecting parts via the screw rod.

[0035] That is, the external connecting parts are fixed to the positioning seat by the screw to achieve a fixed connection of the multi-way valve.

[0036] In a further embodiment, the multi-way valve body 2 is provided with a positioning shaft 22 adapted to the first sealing ring 121, and the positioning shaft 22 passes through the first sealing ring 121 to position it.

[0037] That is, the positioning shaft 22 passes through the first sealing ring 121 to position the sealing element, thereby ensuring the stability of the sealing element 1 on the multi-way valve body 2 and preventing it from shifting, which would affect the sealing effect.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seal for a multi-way valve, the seal (1) comprising an inner sealing ring (12) and an outer sealing ring (13), characterized in that, The sealing outer ring (13) is disposed on the outer periphery of the sealing inner ring (12). There is a gap between the sealing inner ring (12) and the sealing outer ring (13) and they are connected by multiple ribs (15). The thickness of the sealing inner ring (12) is less than the thickness of the sealing outer ring (13).

2. A sealing element for a multi-way valve according to claim 1, characterized in that: The inner sealing ring (12) includes a first sealing ring (121) and a second sealing ring (122) arranged coaxially. The second sealing ring (122) is spaced apart on the outer periphery of the first sealing ring (121), and multiple ribs (15) are provided between the first sealing ring (121) and the second sealing ring (122).

3. A sealing element for a multi-way valve according to claim 1, characterized in that: The sealing outer ring (13) has multiple limiting blocks (14) evenly distributed on both its inner and outer sides.

4. A sealing element for a multi-way valve according to claim 1, characterized in that: The sealing element (1) is made of rubber.

5. A multi-way valve, characterized in that: Includes the seal as described in any one of claims 1-4.

6. The multi-way valve according to claim 5, characterized in that: It includes a multi-way valve body (2), and a sealing groove (21) for placing a seal (1) is provided on the top of the multi-way valve body (2).

7. The multi-way valve according to claim 6, characterized in that: The outer sealing ring (13) is interference-fitted with the sealing groove (21), and the inner sealing ring (12) is clearance-fitted with the sealing groove (21).

8. The multi-way valve according to claim 6, characterized in that: The thickness of the inner sealing ring (12) is greater than the depth of the sealing groove (21).

9. The multi-way valve according to claim 6, characterized in that: The multi-way valve body (2) has multiple positioning seats (23) evenly distributed on its outer periphery, and the multiple positioning seats (23) are used to fix it to the external connecting parts.

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