Vacuum logic valve
By adding a spring and a multi-layer sealing ring structure to the logic valve, the problems of slow valve core response and poor sealing performance are solved, resulting in faster response and higher sealing performance, and extending the service life of the logic valve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2026-04-07
AI Technical Summary
Existing logic valves have slow valve core response speeds and internal component gaps, resulting in poor sealing and affecting service life.
A spring and multi-layer sealing ring structure are added to the logic valve, including a valve core, a second sealing ring and a spring. The valve body is connected by an internal threaded connector to enhance the sealing performance, and the connection sealing performance is improved by connecting gaskets and a third sealing ring.
This improves the response speed and sealing performance of the valve core, extending the service life of the logic valve.
Smart Images
Figure CN224093856U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to logic valve technical field, concretely is a vacuum logic valve. BACKGROUND
[0002] The logic valve is inserted in the plug-in valve body, and the flow direction, pressure and flow of the main oil circuit are controlled through the opening, closing action and opening amount of the logic valve. The logic valve is mostly used in high-pressure, large-flow or super-large flow hydraulic systems, and is actually applicable to machinery such as large-scale machine tools, bending machines, die-casting machines, plastic injection molding machines, copper rolling machines and various heavy industrial machinery, vehicles and ships.
[0003] However, the logic valve in the prior art has slow response speed of the valve core and gaps between internal parts of the logic valve in the use process, so that the sealing performance is poor, and the service life of the logic valve is affected. SUMMARY
[0004] The utility model discloses a vacuum logic valve, to solve the logic valve in prior art mentioned in above background art in the use process, there is slow response speed of the valve core, and there is gap between internal parts of the logic valve, leading to poor sealing performance, thereby affecting the service life of the logic valve.
[0005] To achieve the above object, the utility model provides the following technical scheme: a vacuum logic valve, including the valve body, the inside of valve body is seted up with connecting chamber, be provided with valve core subassembly in connecting chamber, be seted up with internal thread in connecting chamber, and be connected with the connecting head through internal thread, be seted up with the connecting position at the connecting chamber mouth, be provided with the first sealing ring between valve body and connecting head, and the first sealing ring is inwall of the connecting position and is pasted, valve core subassembly includes valve core, second sealing ring and spring, valve core is in the activity in connecting chamber, valve core left end face is in the activity with connecting chamber, valve core right end surface is seted up with second sealing ring, spring one end and valve core right end surface are opposite and touch, spring other end and connecting head inside are opposite and touch, valve core right end surface is seted up with the connecting groove, be seted up with second sealing ring in connecting groove.
[0006] Preferably, the valve body is fixedly connected with a connecting barrel at one end away from the connecting head, an external thread is formed on the surface of the connecting barrel, and a sealing assembly is arranged on the surface of the connecting barrel behind the external thread.
[0007] Preferably, the sealing assembly comprises a connecting gasket and a third sealing ring, the connecting gasket is arranged on the outer wall of the connecting barrel, and the third sealing ring is fixedly connected to the outer wall of the connecting gasket.
[0008] Preferably, the connecting gasket and the third sealing ring are designed in an integral molding structure. Advantages
[0009] Compared with the prior art, the utility model has the advantages that:
[0010] According to the structural design of the utility model, the spring is additionally arranged in the connecting cavity, so that the valve core can respond faster in the use process, the sealing ring is additionally arranged, the gap between the parts is reduced, the sealing property is increased, and the service life of the product is improved. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 It is the whole structure schematic view of the utility model;
[0012] Fig. 2 It is the explosion structure schematic view of the utility model;
[0013] Fig. 3 It is the valve body structure schematic view of the utility model.
[0014] The corresponding relationship between the annotations of the drawings and the component names in the drawings is as follows:
[0015] 1. valve body;2. connecting head;3. connecting barrel;4. connecting cavity;5. sealing assembly;6. valve core assembly;
[0016] 7. first sealing ring;31. external thread;41. internal thread;42. connecting position;51. connecting gasket;
[0017] 52. third sealing ring;61. valve core;62. second sealing ring;63. spring;64. connecting groove. DETAILED DESCRIPTION
[0018] The technical solutions of the utility model will be described clearly and completely in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0019] In the description of the utility model, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal" and the like are the directions or position relations shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and are not indicative or suggestive of the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore are not understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.
[0020] AsFigs. 1-3 It is a kind of vacuum logic valve structure schematic diagram of a preferred embodiment of the utility model, in the embodiment, a kind of vacuum logic valve, including valve body 1, be equipped with connecting cavity 4 in valve body 1 inside, by being equipped with valve core assembly 6 in connecting cavity 4, realize the control function of logic valve work, be equipped with internal thread 41 in connecting cavity 4, and connecting head 2 is threadedly connected by internal thread 41, and the purpose of its setting is to connect effect, connecting position 42 is opened at the cavity mouth of connecting cavity 4, first sealing ring 7 is arranged between valve body 1 and connecting head 2, and first sealing ring 7 is attached with the inner wall of connecting position 42, the structure design, to increase the sealing property of connection between valve body 1 and connecting head 2, prevent the occurrence of leakage phenomenon.
[0021] In the embodiment, the valve core assembly 6 includes a valve core 61, a second sealing ring 62 and a spring 63, the valve core 61 is movably arranged in the connecting cavity 4, and the left end surface of the valve core 61 is movably contacted with the connecting cavity 4, the second sealing ring 62 is sleeved on the right end surface of the valve core 61, and one end of the spring 63 is abutted with the right end surface of the valve core 61, and the other end of the spring 63 is abutted with the inside of the connecting head 2, through the arrangement of the spring 63, the valve core 61 can respond faster in the use process.
[0022] In the embodiment, the right end surface of the valve core 61 is provided with a connecting groove 64, and the second sealing ring 62 is sleeved in the connecting groove 64, so as to increase the sealing effect when the valve core 61 is movably contacted.
[0023] In the embodiment, the valve body 1 is fixedly connected with a connecting barrel 3 away from one end of the connecting head 2, the outer thread 31 is formed on the surface of the connecting barrel 3, the valve body 1 is connected with the connected member through the connecting barrel 3, and the sealing assembly 5 is sleeved on the surface of the connecting barrel 3 behind the outer thread 31, so as to increase the sealing property of the connection between the valve body 1 and the connected member.
[0024] In the embodiment, the sealing assembly 5 includes a connecting gasket 51 and a third sealing ring 52, the connecting gasket 51 is sleeved on the outer wall of the connecting barrel 3, and the third sealing ring 52 is fixedly connected to the outer wall of the connecting gasket 51, so as to reduce the connection gap and increase the sealing effect.
[0025] In the embodiment, the connecting gasket 51 and the third sealing ring 52 are designed in an integral molding structure, so as to improve the sealing property, reduce the production cost and prolong the service life.
[0026] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the utility model specific implementation is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted by the utility model.
Claims
1. A vacuum logic valve, comprising a valve body (1), characterized in that: The valve body (1) has a connecting cavity (4) inside, and a valve core assembly (6) is provided inside the connecting cavity (4). An internal thread (41) is provided inside the connecting cavity (4), and a connector (2) is threaded through the internal thread (41). A connection position (42) is provided at the opening of the connecting cavity (4). A first sealing ring (7) is provided between the valve body (1) and the connector (2), and the first sealing ring (7) is in contact with the inner wall of the connection position (42). The valve core assembly (6) includes a valve core (61), a second valve core assembly (6), and a third valve core assembly (6). A sealing ring (62) and a spring (63) are provided. The valve core (61) moves within the connecting cavity (4). The left end face of the valve core (61) is in contact with the connecting cavity (4). The right end surface of the valve core (61) is fitted with a second sealing ring (62). One end of the spring (63) abuts against the right end surface of the valve core (61), and the other end of the spring (63) abuts against the inside of the connector (2). A connecting groove (64) is provided on the right end surface of the valve core (61), and the second sealing ring (62) is fitted inside the connecting groove (64).
2. The vacuum logic valve according to claim 1, characterized in that: The valve body (1) is fixedly connected to a connecting cylinder (3) at the end away from the connector (2). The surface of the connecting cylinder (3) is provided with an external thread (31). A sealing component (5) is fitted behind the external thread (31) on the surface of the connecting cylinder (3).
3. The vacuum logic valve according to claim 2, characterized in that: The sealing assembly (5) includes a connecting gasket (51) and a third sealing ring (52). The connecting gasket (51) is sleeved on the outer wall of the connecting cylinder (3), and the third sealing ring (52) is fixedly connected to the outer wall of the connecting gasket (51).
4. A vacuum logic valve according to claim 3, characterized in that: The connecting gasket (51) and the third sealing ring (52) adopt an integral molding structure design.