CN220249015U - Multi-way valve core sealing gasket - Google Patents
Multi-way valve core sealing gasket Download PDFInfo
- Publication number
- CN220249015U CN220249015U CN202321811143.1U CN202321811143U CN220249015U CN 220249015 U CN220249015 U CN 220249015U CN 202321811143 U CN202321811143 U CN 202321811143U CN 220249015 U CN220249015 U CN 220249015U
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- gasket body
- metal framework
- valve
- way valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
Valve core sealing gasket of multi-way valve. Relates to the technical field of control valves. Comprising the following steps: the sealing gasket body is annular, and a central hole I is formed in the middle of the sealing gasket body; the sealing gasket body is provided with a plurality of first valve ports, and the bottom of the sealing gasket body is provided with double-rib grooves distributed along the outer shape structure of the sealing gasket body; PTFE membrane, fix and set up on the upper surface of the said seal cushion body; the metal framework is fixedly arranged in the sealing gasket body, and a center hole II is formed in the middle of the metal framework; the metal framework is provided with a plurality of valve ports II. The sealing gasket has the advantages that the sealing surfaces are in good contact, and meanwhile, the sealing gasket body is provided with the double-rib grooves, so that better sealing performance is ensured.
Description
Technical Field
The utility model relates to the technical field of control valves, in particular to an improvement of a sealing gasket structure of a valve core of a multi-way valve.
Background
The multi-way valve mainly comprises a valve body shell, a valve core and a sealing gasket. The multi-way valve realizes the switching of internal cooling water channels under different modes through the relative rotation of the valve core and the valve body shell. The multi-way valve core is arranged in the cavity of the valve body, the valve core rotates relative to the valve body, and the sealing performance among different channels and in the switching process has obvious influence on the heat exchange efficiency, so that in order to ensure the normal running state and the leakage rate in the channel switching process, higher requirements are put on the performance of the sealing gasket. At present, products on the market adopt schemes such as ceramic valve sheet direct hard contact sealing and rubber sealing gasket sealing, and the ceramic sheet has the advantages of difficult deformation, high temperature resistance, wear resistance and the like, but the ceramic sheet has high requirements on water quality, if impurities enter, water dripping is easily caused, meanwhile, the internal leakage rate cannot be very low, and the ceramic sheet is difficult to process, heavy in weight and high in cost. The rubber gasket has good sealing performance, but has the defects of larger rotation torque, poor durability and the like.
Disclosure of Invention
Aiming at the problems, the utility model provides the multi-way valve core sealing gasket which has good sealing performance, reduces rotation torque and prolongs service life.
The technical scheme of the utility model is as follows:
a multiway valve cartridge gasket seal comprising:
the sealing gasket body is annular, and a central hole I is formed in the middle of the sealing gasket body; the sealing gasket body is provided with a plurality of first valve ports, and the bottom of the sealing gasket body is provided with double-rib grooves distributed along the outer shape structure of the sealing gasket body;
PTFE membrane, fix and set up on the upper surface of the said seal cushion body;
the metal framework is fixedly arranged in the sealing gasket body, and a center hole II is formed in the middle of the metal framework; the metal framework is provided with a plurality of valve ports II.
Specifically, the PTFE membrane has an arc-shaped structure.
Specifically, a plurality of semicircular column type bulges arranged at intervals are arranged on the inner side wall of the first central hole.
Specifically, the metal framework is a stainless steel framework.
Specifically, the sealing gasket body is an ethylene propylene diene monomer rubber body.
The utility model has the beneficial effects that:
sealing performance: the whole metal framework that is provided with of sealed pad can guarantee the rigidity of product under various pressure operating mode, makes sealed face contact well, and sealed pad body sets up double-rib recess simultaneously, has guaranteed better leakproofness.
Rotational torque: the metal framework is integrally arranged, the rigidity of a product can be guaranteed, the contact area and the relative stability of positive pressure are guaranteed, so that the rotation torque is controlled in a reasonable interval under different temperature and pressure working conditions, meanwhile, the contact position of the PTFE side of the sealing gasket and the valve core is designed into an arc-shaped structure, the contact area can be remarkably reduced, and the torque is reduced.
Service life is as follows: the metal framework is adopted to ensure the overall rigidity, meanwhile, PTFE with good wear resistance is adopted to contact with the valve core, and an arc-shaped structure is designed to reduce friction force, so that the service life of the product is greatly prolonged.
Drawings
Figure 1 is a schematic perspective view of the present utility model,
figure 2 is a schematic view of the explosive structure of the present utility model,
figure 3 is a schematic view of the bottom structure of the present utility model,
FIG. 4 is a schematic cross-sectional view of the present utility model in use;
in the figure, 100 is a sealing gasket body, 110 is a central hole I, 120 is a valve port I, 130 is a double-rib groove, 140 is a semicircular column-shaped bulge,
200 is a PTFE film and is preferably a film,
300 is a metal framework, 310 is a center hole II, 320 is a valve port II,
400 is a valve seat and 500 is a valve spool.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model is shown in fig. 1-4;
a multiway valve cartridge gasket seal comprising:
the sealing gasket body 100 is annular, the middle part of the sealing gasket body is provided with a first central hole 110, and the first central hole 110 is matched with the valve seat 400; the sealing gasket body 100 is provided with a plurality of valve ports 120, and the bottom of the sealing gasket body 100 is provided with a double-rib groove 130 distributed along the outline structure of the sealing gasket body 100; the double-rib groove 130 facilitates the assembly of the gasket with the valve seat 400 on the one hand and ensures a better tightness on the other hand.
A PTFE film 200 fixedly provided on the upper surface of the gasket body 100;
the metal framework 300 is fixedly arranged in the sealing gasket body 100 through a vulcanization molding process, and a center hole II 310 is formed in the middle of the metal framework; the metal framework 300 is provided with a plurality of second valve ports 320.
Further defined, the PTFE membrane 200 has an arcuate configuration, which reduces contact area and reduces rotational torque.
Further, a plurality of semi-cylindrical protrusions 140 are disposed on the inner side wall of the first central hole 110 at intervals, so as to ensure the relative fixation of the sealing gasket and the valve seat 400.
Further defined, the metal skeleton 300 is a stainless steel skeleton.
Further defined, the gasket body 100 is an ethylene propylene diene monomer body.
The contact surface with the valve core 500 adopts PTFE (polytetrafluoroethylene) or PVDF (polyvinylidene fluoride) material, and the contact main body with the valve body adopts EPDM (ethylene propylene diene monomer) material; the internal supporting framework of the EPDM main body adopts SUS304 stainless steel material. The primary function of EPDM is to provide pressure to seal the PTFE with the valve cartridge 500 while maintaining its own tightness; the performance of EPDM compounds requires higher requirements:
low temperature: TR30 is less than or equal to-45 ℃,
low temperature brittleness: no crack is generated at the temperature of minus 55 ℃,
low temperature pressure change (-40 ℃ for 24 h) is less than or equal to-45%,
high temperature: the hardness change is less than or equal to 10HA,
compression set is less than or equal to 25 percent,
EPDM rubber unit elasticity q (kg/cm) 2 ): compression of 6.5%, q is more than or equal to 5kg/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the Compression 15%, q=12±2kg/cm 2 。
For the purposes of this disclosure, the following points are also described:
(1) The drawings of the embodiments disclosed in the present application relate only to the structures related to the embodiments disclosed in the present application, and other structures can refer to common designs;
(2) The embodiments disclosed herein and features of the embodiments may be combined with each other to arrive at new embodiments without conflict;
the above is only a specific embodiment disclosed in the present application, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a multiway valve case gasket, its characterized in that includes:
the sealing gasket body is annular, and a central hole I is formed in the middle of the sealing gasket body; the sealing gasket body is provided with a plurality of first valve ports, and the bottom of the sealing gasket body is provided with double-rib grooves distributed along the outer shape structure of the sealing gasket body;
PTFE membrane, fix and set up on the upper surface of the said seal cushion body;
the metal framework is fixedly arranged in the sealing gasket body, and a center hole II is formed in the middle of the metal framework; the metal framework is provided with a plurality of valve ports II.
2. The multi-way valve cartridge gasket of claim 1 wherein said PTFE membrane is arcuate in configuration.
3. The multi-way valve cartridge sealing gasket of claim 1, wherein a plurality of semi-cylindrical protrusions are arranged on the inner side wall of the first central hole at intervals.
4. The multiway valve spool sealing gasket of claim 1, wherein the metal skeleton is a stainless steel skeleton.
5. The multi-way valve cartridge gasket of claim 1 wherein said gasket body is an ethylene propylene diene monomer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321811143.1U CN220249015U (en) | 2023-07-11 | 2023-07-11 | Multi-way valve core sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321811143.1U CN220249015U (en) | 2023-07-11 | 2023-07-11 | Multi-way valve core sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220249015U true CN220249015U (en) | 2023-12-26 |
Family
ID=89231462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321811143.1U Active CN220249015U (en) | 2023-07-11 | 2023-07-11 | Multi-way valve core sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220249015U (en) |
-
2023
- 2023-07-11 CN CN202321811143.1U patent/CN220249015U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |