Valve element
By pushing the sealing ring to expand radially through axial extrusion force and combining it with fastener connection, the problems of high material consumption and poor sealing of faucet valve core are solved, and the structure is simplified and the sealing is improved.
Patent Information
- Application Number
- CN202423238481.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing faucet valve core consumes a lot of materials during installation, has a complex structure, is easily affected in sealing, and has a cumbersome welding process.
Axial extrusion force is used to push the first sealing ring and the second sealing ring to expand radially, and a tight seal with the inner wall of the faucet is achieved by tightening the pressure cover, and the housing and the valve cover are connected by the first fastener and the second fastener to provide an extrusion space.
The faucet structure is simplified, material costs are reduced, sealing is improved, the sealing adaptability range is expanded, scratches are avoided, and it is ensured that the sealing ring fits tightly with the inner wall of the faucet.
Smart Images
Figure CN223459987U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of bathroom accessories, specifically relates to a valve core. BACKGROUND
[0002] In order to be well adapted with the valve core, the bottom of the valve core installation position of the existing faucet often needs to reserve thick material for punching to establish the water channel, which leads to more material consumption of the faucet itself, and the overall weight is larger, leading to that the machining complexity, material cost and the like cannot be optimized, in view of the problem, some manufacturers adopt thin-walled pipe material as the main body of the faucet, cooperate with the baffle welded in the thin-walled pipe material, and weld the water pipe and the like structure on the baffle to realize the adaptation with the valve core, but still cannot avoid more welding processes, and for the measuring type valve core, the sealing ring is always in contact with the inner wall of the faucet during valve core installation, and the sealing ring is easily scratched by burrs and the like sharp structure to affect the sealing property. SUMMARY
[0003] Based on the above problems, the utility model aims at providing a valve core which can effectively simplify the structure of the faucet, reduce the material cost of the faucet, and effectively ensure the sealing property after installation.
[0004] In view of the above problems, the following technical scheme is provided: a valve core, comprising a shell, a valve cavity is arranged on the upper end of the shell, a water inlet is arranged at the bottom of the shell and communicated with the bottom of the valve cavity, a water outlet is arranged on the side wall of the shell and communicated with the valve cavity, a dynamic sheet, a static sheet and a control mechanism are arranged in the valve cavity, a valve cover is further arranged on the upper end of the shell and adapted with the valve cavity, a sliding gap can be formed in the axial direction of the shell, the control mechanism passes out from the valve cover, a first compression groove is formed between the valve cover and the upper end face of the shell, and a first sealing ring is arranged in the first compression groove; a second sealing ring is arranged at the lower end of the shell, the water outlet is located between the first sealing ring and the second sealing ring, when the shell is installed in the faucet, the valve cover is subjected to the axial thrust when the gland is tightened, the first sealing ring and the second sealing ring are extruded in the axial direction of the shell, and the first sealing ring and the second sealing ring are expanded in the radial direction of the shell to realize the close sealing with the inner wall of the faucet.
[0005] The utility model is further provided with the first fastener connected between the shell and the valve cover, the first fastener comprises a first fastener groove and a first fastener hook matched with the first fastener groove, and the first fastener groove and the first fastener hook are a plurality of groups and are arranged at intervals in the circumferential direction of the shell.
[0006] The utility model further sets up, first buckle groove is located in the valve cavity inner wall along the casing axial direction direction, first buckle groove is equipped with first anti -drop rim near casing upper end face position department, the valve cover lower end surface is equipped with with the first plug -in part of valve cavity, first hook is located on the first plug -in part, first hook is located in first buckle groove along the casing axial direction direction slide while with first anti -drop rim abutment anti -drop, or first buckle groove is located in the valve cover outer edge along the valve cover axial direction direction, first buckle groove is equipped with first anti -drop rim near casing upper end face position department, the casing upper end surface is equipped with with the first plug -in part of valve cover, first hook is located on the first plug -in part, first hook is located in first buckle groove along the casing axial direction direction slide while with first anti -drop rim abutment anti -drop.
[0007] The utility model further sets up, the casing lower end is equipped with the outer extension cylinder, second sealing ring is covered on the outer extension cylinder, one side of second sealing ring is abutted with casing lower end end surface, and the other side is abutted with the stop piece in the faucet.
[0008] The utility model further sets up, the outer extension cylinder cylinder wall is equipped with the circumferential positioning groove, the stop piece is equipped with with the positioning convex of circumferential positioning groove adaptation.
[0009] The utility model further sets up, the casing lower end is equipped with the rear cover that can form the sliding clearance along the casing axial direction, the second compression groove is formed between the rear cover and casing lower end end surface, and second sealing ring is located in the second compression groove, the rear cover is connected with casing through the second fastener, and the second fastener includes second buckle groove and with its second hook adaptation, second buckle groove and second hook are a plurality of groups and are arranged along the casing circumferential direction interval, the one end of rear cover is equipped with the outer extension cylinder away from casing, the outer extension cylinder cylinder wall is equipped with the circumferential positioning groove, and the circumferential positioning groove is used for with the positioning convex of stop piece in the faucet adaptation.
[0010] The utility model further sets up, the casing lower end is equipped with rear cavity, second buckle groove is located in the rear cavity inner wall along the casing axial direction direction, second buckle groove is equipped with second anti -drop rim near casing lower end end surface position department, the front end surface of rear cover is equipped with with the second plug -in part of rear cavity, second hook is located on the second plug -in part, second hook is located in second buckle groove along the casing axial direction direction slide while with second anti -drop rim abutment anti -drop.
[0011] The utility model further sets up, the water inlet passes out from the rear cover.
[0012] The utility model further sets up, the water inlet is equipped with the screw hole in.
[0013] The utility model further sets up, the water inlet includes first water inlet and second water inlet.
[0014] The utility model further sets up, the middle section of casing between first sealing ring and second sealing ring is equipped with the reduced diameter section, the water outlet is located on the reduced diameter section.
[0015] The utility model discloses the beneficial effect has: the axial extrusion of pressure cover compression time is used to push the radial expansion of first sealing ring, second sealing ring, has guaranteed that the valve core is installed and does not have the unnecessary scratch with the inner wall of tap, can after the radial expansion of first sealing ring, second sealing ring of screwing pressure cover again and the inner wall of tap is mutually stopped and realizes the sealing, and simultaneously because the radial expansion of first sealing ring, second sealing ring is controlled through the axial screwing of pressure cover amount, so the sealing adaptation range of first sealing ring, second sealing ring is bigger, that is, the redundant ability of the size of the inner wall of tap will be greatly promoted, can effectively simplify the structure of tap, reduce the material cost of tap, and effectively guarantee the sealing property after installation simultaneously, the rubber water seal is equipped between static sheet and valve cavity bottom, so can carry out automatic compensation adjustment to the displacement of valve cover, guarantees the contact sealing property between static sheet and dynamic sheet. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the three-dimensional structure schematic view of the utility model embodiment 1.
[0017] Figure 2 It is the full cut three-dimensional structure schematic view of the utility model embodiment 1.
[0018] Figure 3 It is the radial expansion full cut three-dimensional structure schematic view of first sealing ring and second sealing ring when the pressure cover extrusion under the installation state of the utility model embodiment 1.
[0019] Figure 4 It is the explosion three-dimensional structure schematic view of the utility model embodiment 1.
[0020] Figure 5 It is the explosion full cut three-dimensional structure schematic view of the utility model embodiment 1.
[0021] Figure 6 It is the three-dimensional structure schematic view of the utility model embodiment 2.
[0022] Figure 7 It is the full cut three-dimensional structure schematic view of the utility model embodiment 2.
[0023] Figure 8 It is the radial expansion full cut three-dimensional structure schematic view of first sealing ring and second sealing ring when the pressure cover extrusion under the installation state of the utility model embodiment 2.
[0024] Figure 9 It is the explosion three-dimensional structure schematic view of the utility model embodiment 2.
[0025] Figure 10It is the exploded full-section three-dimensional structure schematic view of the utility model embodiment 2.
[0026] Figure 11 It is the three-dimensional structure schematic view of the utility model embodiment 3.
[0027] Figure 12 It is the full-section three-dimensional structure schematic view of the utility model embodiment 3.
[0028] Figure 13 It is the full-section three-dimensional structure schematic view of the first sealing ring and the second sealing ring radial expansion when the gland extrusion under the installation state of the utility model embodiment 3.
[0029] Figure 14 It is the exploded three-dimensional structure schematic view of the utility model embodiment 3.
[0030] Figure 15 It is the exploded full-section three-dimensional structure schematic view of the utility model embodiment 3.
[0031] The meaning of the reference numeral in the drawing: 10 - shell; 11 - valve cavity; 12 - water inlet; 121 - silk mouth; 13 - water outlet; 131 - reduced section; 14 - first compression groove; 15 - first buckle groove; 151 - first anti-off edge; 16 - outer extension cylinder; 161 - circumferential positioning groove; 17 - second compression groove; 18 - second buckle groove; 181 - second anti-off edge; 19 - rear cavity; 20 - valve cover; 21 - first buckle hook; 22 - first plug-in part; 30 - first sealing ring; 40 - second sealing ring; 50 - stop piece; 51 - positioning protrusion; 60 - rear cover; 61 - second buckle hook; 62 - second plug-in part. DETAILED DESCRIPTION
[0032] The specific implementation of the utility model is described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.
[0033] Embodiment 1
[0034] Reference Figures 1 to 15 For example Figures 1 to 5The valve core shown includes a shell 10, the upper end of which is provided with a valve cavity 11, the bottom of which is provided with a water inlet 12 communicating with the bottom of the valve cavity 11, and the side wall of which is provided with a water outlet 13 communicating with the valve cavity 11, and the valve cavity 11 is provided with a moving piece (not shown in the prior art figure), a static piece (not shown in the prior art figure) and a control mechanism (not shown in the prior art figure), and the upper end of the shell 10 is further provided with a valve cover 20 which is adapted to the valve cavity 11 and can form a sliding gap in the axial direction of the shell 10, and the control mechanism (not shown in the prior art figure) passes out from the valve cover 20, and the valve cover 20 and the upper end face of the shell 10 form a first compression groove 14, and the first compression groove 14 is provided with a first sealing ring 30; the lower end of the shell 10 is provided with a second sealing ring 40, and the water outlet 13 is located between the first sealing ring 30 and the second sealing ring 40, and when the shell 10 is installed into a faucet (not shown in the prior art figure), the valve cover 20 is subjected to the axial thrust when the gland (not shown in the prior art figure) is tightened, which causes the first sealing ring 30 and the second sealing ring 40 on both sides to be extruded in the axial direction of the shell 10, so as to expand in the radial direction of the shell 10 to achieve close sealing with the inner wall of the faucet (not shown in the prior art figure).
[0035] In the above structure, the traditional valve core is fixed by the gland during installation, so the axial extrusion force of the gland (not shown in the prior art figure) when it is pressed is used to push the radial expansion of the first sealing ring 30 and the second sealing ring 40, which ensures that the valve core will not be unnecessarily scratched with the inner wall of the faucet (not shown in the prior art figure) during installation, and after the gland (not shown in the prior art figure) is tightened, the radial expansion of the first sealing ring 30 and the second sealing ring 40 can also be achieved to seal against the inner wall of the faucet (not shown in the prior art figure); at the same time, since the radial expansion amount of the first sealing ring 30 and the second sealing ring 40 is controlled by the axial tightening amount of the gland (not shown in the prior art figure), the sealing adaptability of the first sealing ring 30 and the second sealing ring 40 is larger, that is, the redundancy of the size of the inner wall of the faucet (not shown in the prior art figure) can be greatly improved.
[0036] In this embodiment, the shell 10 and the valve cover 20 are connected by a first fastener, and the first fastener includes a first fastener groove 15 and a first fastener hook 21 adapted thereto; the first fastener groove 15 and the first fastener hook 21 are arranged in several groups along the circumferential direction of the shell 10.
[0037] In the above structure, the first fastener groove 15 is located on the shell 10, and the first fastener hook 21 is located on the valve cover 20.
[0038] In the embodiment, the first buckle groove 15 is located on the inner wall of the valve cavity 11 along the axial direction of the shell 10, and the first buckle groove 15 is provided with a first anti-falling edge 151 near the upper end face of the shell 10; the lower end face of the valve cover 20 is provided with a first plug-in part 22 matched with the valve cavity 11, the first buckle hook 21 is located on the first plug-in part 22, and the first buckle hook 21 slides along the axial direction of the shell 10 while abutting against the first anti-falling edge 151 to prevent falling.
[0039] In the above structure, the first buckle groove 15 and the first buckle hook 21 can provide an axial movement space between the shell 10 and the valve cover 20, and create an extrusion space for the first sealing ring 30.
[0040] In the embodiment, the lower end of the shell 10 is provided with an extension cylinder 16, the second sealing ring 40 is sleeved on the extension cylinder 16, one side of the second sealing ring 40 abuts against the lower end face of the shell 10, and the other side abuts against the stop piece 50 in the faucet (not shown in the prior art figure).
[0041] In the above structure, the faucet (not shown in the prior art figure) can directly cut a thin-walled pipe material, and the stop piece 50 is welded to the inner wall of the faucet (not shown in the prior art figure) to provide an extrusion basis for the second sealing ring 40.
[0042] In the embodiment, the circumferential positioning groove 161 is formed on the cylinder wall of the extension cylinder 16, and the stop piece 50 is provided with a positioning protrusion 51 matched with the circumferential positioning groove 161.
[0043] In the above structure, the circumferential direction of the shell 10 relative to the faucet (not shown in the prior art figure) is determined.
[0044] In the embodiment, the water inlet 12 is provided with a thread 121.
[0045] In the above structure, the shell 10 is injection molded, the thread 121 is integrally injection molded with the shell 10 or is installed in the form of a metal insert; the valve cover 20 and the rear cover 60 are injection molded parts.
[0046] In the embodiment, the water inlet 12 includes a first water inlet and a second water inlet.
[0047] In the above structure, the first water inlet and the second water inlet are used to connect cold and hot water pipes.
[0048] In the embodiment, the middle section of the shell 10 between the first sealing ring 30 and the second sealing ring 40 is provided with a reduced diameter section 131, and the water outlet 13 is located on the reduced diameter section 131.
[0049] In the above structure, the reduced diameter section 131 can establish sufficient water outlet section between the inner wall of the faucet (not shown in the prior art figure) and the outer wall of the shell 10, and the water outlet nozzle (not shown in the prior art figure) located on the faucet (not shown in the prior art figure) can be connected thereto.
[0050] Embodiment 2
[0051] Reference Figures 1 to 15 As Figures 6 to 10 shown in a valve core, comprising a shell 10, the upper end of the shell 10 is provided with a valve cavity 11, the bottom of the shell 10 is provided with a water inlet 12 which is communicated with the bottom of the valve cavity 11, the side wall of the shell 10 is provided with a water outlet 13 which is communicated with the valve cavity 11, the valve cavity 11 is provided with a moving piece (not shown in the prior art figure), a static piece (not shown in the prior art figure) and a control mechanism (not shown in the prior art figure), the upper end of the shell 10 is further provided with a valve cover 20 which is adapted to the valve cavity 11 and can form a sliding gap in the axial direction of the shell 10, the control mechanism (not shown in the prior art figure) passes out from the valve cover 20, the first compression groove 14 is formed between the valve cover 20 and the upper end face of the shell 10, and the first compression groove 14 is provided with a first sealing ring 30; the lower end of the shell 10 is provided with a second sealing ring 40, the water outlet 13 is located between the first sealing ring 30 and the second sealing ring 40, when the shell 10 is installed into the faucet (not shown in the prior art figure), the valve cover 20 is subjected to the axial thrust when the gland (not shown in the prior art figure) is tightened, which causes the extrusion of the first sealing ring 30 and the second sealing ring 40 in the axial direction of the shell 10 and the expansion of the first sealing ring 30 and the second sealing ring 40 in the radial direction of the shell 10 to realize the close sealing with the inner wall of the faucet (not shown in the prior art figure).
[0052] In the above structure, the traditional valve core is fixed by the gland during installation, therefore, the axial extrusion force of the gland (not shown in the prior art figure) during compression is used to push the radial expansion of the first sealing ring 30 and the second sealing ring 40, which ensures that the valve core will not be scratched with the inner wall of the faucet (not shown in the prior art figure) during installation, and after the gland (not shown in the prior art figure) is tightened, the radial expansion of the first sealing ring 30 and the second sealing ring 40 can be in contact with the inner wall of the faucet (not shown in the prior art figure) to realize the sealing; at the same time, since the radial expansion amount of the first sealing ring 30 and the second sealing ring 40 is controlled by the axial tightening amount of the gland (not shown in the prior art figure), the sealing adaptability of the first sealing ring 30 and the second sealing ring 40 is larger, that is, the redundancy of the size of the inner wall of the faucet (not shown in the prior art figure) can be greatly improved.
[0053] In the embodiment, the shell 10 and the valve cover 20 are connected by a first fastener, the first fastener comprising a first fastener slot 15 and a first fastener hook 21 matched therewith; the first fastener slot 15 and the first fastener hook 21 are arranged in several groups along the circumferential direction of the shell 10.
[0054] In the above structure, when the first fastener slot 15 is located on the shell 10, the first fastener hook 21 is located on the valve cover 20; when the first fastener slot 15 is located on the valve cover 20, the first fastener hook 21 is located on the shell 10.
[0055] In the embodiment, the first fastener slot 15 is arranged on the inner wall of the valve cavity 11 along the axial direction of the shell 10, and the first fastener slot 15 is provided with a first anti-falling edge 151 near the upper end face of the shell 10; the lower end face of the valve cover 20 is provided with a first plug-in part 22 matched with the valve cavity 11, the first fastener hook 21 is located on the first plug-in part 22, and the first fastener hook 21 slides along the axial direction of the shell 10 while abutting against the first anti-falling edge 151 to prevent falling.
[0056] In the above structure, the first fastener slot 15 and the first fastener hook 21 can provide axial movement space between the shell 10 and the valve cover 20, and create extrusion space for the first sealing ring 30.
[0057] In the embodiment, the lower end of the shell 10 is provided with a rear cover 60 which can form a sliding gap along the axial direction of the shell 10, a second compression groove 17 is formed between the rear cover 60 and the lower end face of the shell 10, and the second sealing ring 40 is located in the second compression groove 17; the rear cover 60 and the shell 10 are connected by a second fastener, the second fastener comprising a second fastener slot 18 and a second fastener hook 61 matched therewith; the second fastener slot 18 and the second fastener hook 61 are arranged in several groups along the circumferential direction of the shell 10; the end of the rear cover 60 away from the shell 10 is provided with an extension cylinder 16, a circumferential positioning groove 161 is arranged on the cylinder wall of the extension cylinder 16, and the circumferential positioning groove 161 is matched with the positioning protrusion 51 of the inner stopper 50 (refer to the figure in the prior art) of the faucet (not shown in the figure in the prior art). Figures 1-5
[0058] In the above structure, when the second fastener slot 18 is located on the shell 10, the second fastener hook 61 is located on the rear cover 60; when the second fastener slot 18 is located on the rear cover 60, the second fastener hook 61 is located on the shell 10.
[0059] In the embodiment, the lower end of the shell 10 is provided with a rear cavity 19, the second clamping groove 18 is arranged on the inner wall of the rear cavity 19 along the axial direction of the shell 10, and the second clamping groove 18 is provided with a second anti-falling edge 181 near the position of the lower end face of the shell 10; the front end face of the rear cover 60 is provided with a second plug-in part 62 matched with the rear cavity 19, the second clamping hook 61 is arranged on the second plug-in part 62, and the second clamping hook 61 is arranged in the second clamping groove 18 and slides along the axial direction of the shell 10 while abutting against the second anti-falling edge 181 to prevent falling.
[0060] In the above structure, the second clamping groove 18 and the second clamping hook 61 can provide an axial movement space between the shell 10 and the rear cover 60, and create a pressing space for the second sealing ring 40.
[0061] In the embodiment, the water inlet 12 penetrates out of the rear cover 60.
[0062] In the above structure, the connecting pipe is convenient to connect.
[0063] In the embodiment, the water inlet 12 is provided with a screw thread 121.
[0064] In the above structure, the shell 10 is injection molded, the screw thread 121 is integrally injection molded with the shell 10 or is installed in the form of a metal insert; the valve cover 20 and the rear cover 60 are injection molded parts.
[0065] In the embodiment, the water inlet 12 includes a first water inlet and a second water inlet.
[0066] In the above structure, the first water inlet and the second water inlet are used to connect cold and hot water pipes.
[0067] In the embodiment, the middle section of the shell 10 between the first sealing ring 30 and the second sealing ring 40 is provided with a reduced diameter section 131, and the water outlet 13 is arranged on the reduced diameter section 131.
[0068] In the above structure, the reduced diameter section 131 can establish a sufficient water outlet cross section between the inner wall of the faucet (not shown in the prior art figure) and the outer wall of the shell 10, and the water outlet nozzle (not shown in the prior art figure) located on the faucet (not shown in the prior art figure) can be connected thereto.
[0069] Embodiment 3
[0070] Reference Figures 1 to 15 As Figures 11 to 15The valve core shown includes a shell 10, the upper end of which is provided with a valve cavity 11, the bottom of which is provided with a water inlet 12 communicating with the bottom of the valve cavity 11, and the side wall of which is provided with a water outlet 13 communicating with the valve cavity 11, and the valve cavity 11 is provided with a moving piece (not shown in the prior art figure), a static piece (not shown in the prior art figure) and a control mechanism (not shown in the prior art figure), and the upper end of the shell 10 is further provided with a valve cover 20 which is adapted to the shell 10 and can form a sliding gap in the axial direction of the shell 10, and the control mechanism (not shown in the prior art figure) passes out from the valve cover 20, and a first compression groove 14 is formed between the valve cover 20 and the upper end face of the shell 10, and a first sealing ring 30 is arranged in the first compression groove 14; the lower end of the shell 10 is provided with a second sealing ring 40, and the water outlet 13 is located between the first sealing ring 30 and the second sealing ring 40, and when the shell 10 is installed into a faucet (not shown in the prior art figure), the valve cover 20 is subjected to the axial thrust when the gland (not shown in the prior art figure) is tightened, which causes the first sealing ring 30 and the second sealing ring 40 on both sides to be extruded in the axial direction of the shell 10 and to expand in the radial direction of the shell 10 to achieve close sealing with the inner wall of the faucet (not shown in the prior art figure).
[0071] In the above structure, the traditional valve core is fixed by the gland during installation, so the axial extrusion force of the gland (not shown in the prior art figure) when it is pressed tightly is used to push the radial expansion of the first sealing ring 30 and the second sealing ring 40, which ensures that the valve core will not be unnecessarily scratched with the inner wall of the faucet (not shown in the prior art figure) during installation, and after the gland (not shown in the prior art figure) is tightened, the radial expansion of the first sealing ring 30 and the second sealing ring 40 can also be achieved to seal against the inner wall of the faucet (not shown in the prior art figure); at the same time, since the radial expansion amount of the first sealing ring 30 and the second sealing ring 40 is controlled by the axial tightening amount of the gland (not shown in the prior art figure), the sealing adaptability of the first sealing ring 30 and the second sealing ring 40 is greater, that is, the redundancy of the size of the inner wall of the faucet (not shown in the prior art figure) can be greatly improved.
[0072] In this embodiment, the shell 10 and the valve cover 20 are connected by a first fastener, and the first fastener includes a first fastener groove 15 and a first fastener hook 21 which is adapted thereto; the first fastener groove 15 and the first fastener hook 21 are arranged in several groups along the circumferential direction of the shell 10.
[0073] In the above structure, the first fastener groove 15 is located on the valve cover 20, and the first fastener hook 21 is located on the shell 10.
[0074] In the embodiment, the first buckle groove 15 is provided on the outer edge of the valve cover 20 along the axial direction of the valve cover 20, the first buckle groove 15 is provided with a first anti-falling edge 151 near the upper end surface of the shell 10, the upper end surface of the shell 10 is provided with a first plug-in part 22 matched with the valve cover 20, the first buckle hook 21 is located on the first plug-in part 22, and the first buckle hook 21 is located in the first buckle groove 15 and slides along the axial direction of the shell 10 while abutting against the first anti-falling edge 151 to prevent falling.
[0075] In the above structure, the first buckle groove 15 and the first buckle hook 21 can provide an axial movement space between the shell 10 and the valve cover 20 and create a pressing space for the first sealing ring 30.
[0076] In the embodiment, the lower end of the shell 10 is provided with an extension cylinder 16, the second sealing ring 40 is sleeved on the extension cylinder 16, one side of the second sealing ring 40 abuts against the lower end surface of the shell 10, and the other side abuts against a stop piece 50 in a faucet (not shown in the prior art drawing).
[0077] In the above structure, the faucet (not shown in the prior art drawing) can be directly cut from a thin-walled pipe material, and the stop piece 50 is welded to the inner wall of the faucet (not shown in the prior art drawing) to provide a pressing basis for the second sealing ring 40.
[0078] In the embodiment, the circumferential positioning groove 161 is provided on the cylinder wall of the extension cylinder 16, and the stop piece 50 is provided with a positioning protrusion 51 matched with the circumferential positioning groove 161.
[0079] In the above structure, the circumferential direction of the shell 10 relative to the faucet (not shown in the prior art drawing) is determined.
[0080] In the embodiment, the water inlet 12 is provided with a thread 121.
[0081] In the above structure, the shell 10 is injection molded, the thread 121 is integrally injection molded with the shell 10 or is installed in the form of a metal insert, and the valve cover 20 and the rear cover 60 are injection molded parts.
[0082] In the embodiment, the water inlet 12 includes a first water inlet and a second water inlet.
[0083] In the above structure, the first water inlet and the second water inlet are used to connect cold and hot water pipes.
[0084] In the embodiment, the middle section of the shell 10 between the first sealing ring 30 and the second sealing ring 40 is provided with a reduced diameter section 131, and the water outlet 13 is located on the reduced diameter section 131.
[0085] In the structure, the reduced diameter section 131 can establish sufficient water outlet section between the inner wall of the faucet (not shown in the prior art figure) and the outer wall of the shell 10, and the water outlet nozzle (not shown in the prior art figure) located on the faucet (not shown in the prior art figure) can be connected therewith.
[0086] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, without departing from the technical principles of the present application, can make a number of improvements and variations, the above assumptions of these improvements and variations should also be considered as the protection scope of the present application.
Claims
1. A valve core, comprising a housing, a valve cavity provided at the upper end of the housing, a water inlet provided at the bottom of the housing and communicating with the bottom of the valve cavity, a water outlet provided on the side wall of the housing and communicating with the valve cavity, a moving plate, a stationary plate, and a control mechanism provided within the valve cavity, characterized in that: The upper end of the shell is further provided with a valve cover which is adapted to the shell and forms a sliding gap in the axial direction of the shell, the control mechanism passes through the valve cover, a first compression groove is formed between the valve cover and the upper end face of the shell, and a first sealing ring is arranged in the first compression groove; the lower end of the shell is provided with a second sealing ring, and the water outlet is located between the first sealing ring and the second sealing ring; when the shell is installed in the faucet, the valve cover is subjected to the axial thrust when the gland is tightened, so that the first sealing ring and the second sealing ring on both sides are extruded in the axial direction of the shell, and the first sealing ring and the second sealing ring are expanded in the radial direction of the shell to realize the close sealing with the inner wall of the faucet.
2. A valve core according to claim 1, characterised in that: The shell and the valve cover are connected through a first fastener, the first fastener includes a first fastener groove and a first fastener hook matched with the first fastener groove, and a plurality of groups of the first fastener groove and the first fastener hook are arranged along the circumferential direction of the shell.
3. A valve core according to claim 2, characterised in that: The first fastener groove is arranged on the inner wall of the valve cavity in the axial direction of the shell, and a first anti-falling edge is arranged at the position close to the upper end face of the shell; a first insertion part matched with the valve cavity is arranged on the lower end face of the valve cover, and the first fastener hook is arranged on the first insertion part; the first fastener hook slides in the first fastener groove in the axial direction of the shell while abutting against the first anti-falling edge to prevent falling; or the first fastener groove is arranged on the outer edge of the valve cover and is arranged in the axial direction of the valve cover, a first anti-falling edge is arranged at the position close to the upper end face of the shell; a first insertion part matched with the valve cover is arranged on the upper end face of the shell, and the first fastener hook is arranged on the first insertion part; the first fastener hook slides in the first fastener groove in the axial direction of the shell while abutting against the first anti-falling edge to prevent falling.
4. A valve core according to claim 3, characterised in that: The lower end of the shell is provided with an extension cylinder, the second sealing ring is sleeved on the extension cylinder, one side of the second sealing ring abuts against the lower end face of the shell, and the other side abuts against the stopper in the faucet.
5. A valve core according to claim 4, characterised in that: A circumferential positioning groove is arranged on the cylinder wall of the extension cylinder, and the stopper is provided with a positioning protrusion matched with the circumferential positioning groove.
6. A valve core according to claim 3, characterised in that: The lower end of the shell is provided with a rear cover which can form a sliding gap in the axial direction of the shell, a second compression groove is formed between the rear cover and the lower end face of the shell, and the second sealing ring is arranged in the second compression groove; the rear cover and the shell are connected through a second fastener, the second fastener includes a second fastener groove and a second fastener hook matched with the second fastener groove, and a plurality of groups of the second fastener groove and the second fastener hook are arranged along the circumferential direction of the shell.
7. A valve core according to claim 6, characterised in that: The lower end of the shell is provided with a rear cavity, the second fastener groove is arranged on the inner wall of the rear cavity in the axial direction of the shell, and a second anti-falling edge is arranged at the position close to the lower end face of the shell; a second insertion part matched with the rear cavity is arranged on the front end face of the rear cover, and the second fastener hook is arranged on the second insertion part; the second fastener hook slides in the second fastener groove in the axial direction of the shell while abutting against the second anti-falling edge to prevent falling.
8. A valve core according to claim 1, characterised in that: A screw thread is arranged in the water inlet.
9. A valve core according to claim 1, characterised in that: The water inlet includes a first water inlet and a second water inlet.
10. A valve core according to any one of claims 1 to 9, characterised in that: A reduced diameter section is arranged in the middle section of the shell between the first sealing ring and the second sealing ring, and the water outlet is arranged on the reduced diameter section.