A valve core structure with axial water inlet and lateral water outlet

Abstract

The application provides a valve core structure with axial water inlet and lateral water outlet, which comprises a press switch and a valve core, the valve core comprises a valve core main body cylinder, an axial front end of the valve core main body cylinder is provided with a water inlet, a front side wall of the valve core main body cylinder is provided with a water outlet, a sealing rod capable of moving axially forward and backward is arranged on a central axis in the valve core main body cylinder, the sealing rod is connected with the press switch, and the press switch controls the movement of the sealing rod. The application can be applied to a valve with axial water inlet and lateral water outlet, such as an angle valve, and light opening press feeling and greater flow are provided. In addition, the valve core structure is simple and convenient to assemble.

Description

TECHNICAL FIELD

[0001] The present application relates to a press type valve core structure, and in particular to a valve core that can be used in an angle valve. BACKGROUND

[0002] The press type valve core structure is usually connected to the end of the pressing rod of a press switch, the press switch is provided with a button, the button is connected to the pressing rod, and the movement control structure in the press switch can provide two stop positions in the axial direction of the pressing rod, so that the valve core also has two stop positions, which correspond to the open and closed states of the valve.

[0003] The angle valve uses axial water inlet and lateral water outlet. When the press type valve core is applied to the angle valve, it needs to resist the resistance of the front water pressure during the pressing operation from the closed state to the open state, which is laborious at the beginning and affects the experience of operation. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a valve core structure with axial water inlet and lateral water outlet, which has small opening and closing resistance and improves the experience of operation. To this end, the present application adopts the following technical solutions:

[0005] A valve core structure with axial water inlet and lateral water outlet, comprising a press switch and a valve core, the valve core comprising a valve core main body cylinder, the axial front end of the valve core main body cylinder being provided with a water inlet, the front side wall of the valve core main body cylinder being provided with a water outlet, a sealing rod capable of moving axially forward and backward being arranged on the central axis in the valve core main body cylinder, the sealing rod being connected to the press switch, and the press switch controlling the movement of the sealing rod; characterized in that a fixed sealing seat is arranged in the valve core main body cylinder, the fixed sealing seat is provided with a water blocking isolation front part, the fixed sealing seat is provided with a water outlet cavity behind the water blocking isolation front part, the side wall of the water outlet cavity is provided with a water outlet hole communicating with the water outlet, a rear water cavity is arranged behind the fixed sealing seat in the valve core main body cylinder, the fixed sealing seat is provided with a water passage, the inlet of the water passage is arranged in the water blocking isolation front part, and the water passage communicates with the rear water cavity.

[0006] The front end of the sealing rod is connected to a valve element to control the forward and backward movement of the valve element, the valve element is provided with a water blocking part and a second water passage communicating the water outlet cavity and the rear water cavity; the valve element cooperates with the water outlet cavity in the fixed sealing seat to close and open the water outlet hole, so that the valve core structure is in the closed state and the open state respectively, in the closed state, the valve element and the wall of the water outlet cavity form a sealing connection to close the water outlet hole, and in the open state, the valve element can move backward, and the valve element and the wall of the water outlet cavity also form a gap for water flow.

[0007] On the basis of the above technical scheme of the present application, the present application can further adopt the following technical scheme, or use the following technical schemes in combination.

[0008] The valve piece is in a barrel-shaped structure, the bottom of which is the water blocking part, and the mouth of which faces forward, the valve piece being provided with a cavity from the mouth to the bottom, the center of the bottom of the valve piece being connected with the sealing rod, and the eccentric position of the bottom being provided with the second water passing groove, the upper and lower parts of the outer wall of the valve piece being provided with sealing rings respectively to be able to be sealingly connected with the water outlet cavity walls on the front and rear sides of the water outlet hole.

[0009] The water outlet cavity in the fixed sealing seat is overall in an inverted conical shape, the valve piece being sealingly connected with the inclined wall of the inverted conical shape of the water outlet cavity, and a gap for water flow being formed between the valve piece and the water outlet cavity wall when the valve piece moves backward to exit the sealing connection.

[0010] The inside of the valve core main cylinder is provided with an isolation structure behind the fixed sealing seat, the isolation structure being provided with a rear sealing element mounting seat with a forward opening, the bottom of the rear sealing element mounting seat being provided with a central hole for the sealing rod to pass through, the rear sealing element mounting seat being provided with a clamping structure, the rear sealing element being fixedly pressed in the bottom of the rear sealing element mounting seat by the cooperation of the clamping element and the clamping structure, and the rear sealing element being in sliding sealing cooperation with the sealing rod.

[0011] A spring seat is formed behind the isolation structure, a return support spring of the press switch being arranged on the spring seat to support the sliding shaft of the switch by supporting the sealing rod.

[0012] The water inlet adopts a separate water inlet element, the water inlet element being clamped with the valve core main cylinder and tightly pressing the fixed sealing seat backward, a first sealing ring being arranged between the rear end of the water inlet element and the fixed sealing seat to seal the water inlet element, the fixed sealing seat and the valve core main cylinder, a second sealing ring being arranged at the rear of the fixed sealing seat to seal the fixed sealing seat and the valve core main cylinder, and the water outlet being located between the first sealing ring and the second sealing ring.

[0013] The mounting seat of the press switch is threadedly connected with the rear end of the valve core main cylinder, and the clamping seat of the rear part of the sealing rod is clamped and connected with the front end of the sliding shaft of the press switch, the sliding shaft and the sealing rod being clamped and connected together when assembled by pressing the sliding shaft.

[0014] Due to the technical scheme of the present application, the present application can be applied to angle valves and other valves with axial water inlet and lateral water outlet, and can provide a lighter opening press feeling and a larger flow rate, and the valve core structure of the present application is simple and convenient to assemble. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 3 is a sectional view of the valve core structure of the present application in a closed state of the valve.

[0016] Figure 2 Figure 4 is a sectional view of the valve core structure of the present application in an open state of the valve.

[0017] Figure 3 Figure 5 is an exploded view of the valve core structure of the present application.

[0018] Figure 4 Figure 6 is a schematic view of the fixed sealing seat in the valve core structure of the present application.

[0019] Figure 5 Figure 7 is a sectional view of the fixed sealing seat in the valve core structure of the present application. DETAILED DESCRIPTION

[0020] With reference to the drawings, in the present embodiment, the valve core structure of the present application is a valve core structure for a corner valve, which comprises a press switch and a valve core, the valve core comprising a valve core body cylinder 1, which is provided with a central hole for mounting a valve core assembly. The axial front end of the valve core body cylinder 1 is provided with an inlet 2 in the direction of the front part shown in the figure, and the front side wall of the valve core body cylinder 1 is provided with an outlet 11. In the valve core body cylinder 1, a sealing rod 3 capable of moving axially forward and backward is arranged on the central axis of the valve core body cylinder 1. The sealing rod 3 is connected to the press switch, so that the press switch can control the movement of the sealing rod 3.

[0021] The valve core body cylinder 1 is provided with a fixed sealing seat 4, which can be a plastic part. The fixed sealing seat 4 is provided with a water-blocking isolation front part 42, which can be the front end wall of the fixed sealing seat 4, to change the direction of the water flow so that it can flow from the water passage groove 44 described below to the rear water cavity 12 behind the fixed sealing seat 4. The fixed sealing seat 4 is provided with a water outlet cavity 43 open to the rear behind the water-blocking isolation front part 42, which is provided with a plurality of side wall water outlet holes 431 in communication with the plurality of outlet ports 11 of the valve core body cylinder 1. The rear water cavity 12 is arranged behind the fixed sealing seat 4 in the valve core body cylinder 1. The fixed sealing seat 4 is provided with a water passage groove 44, the inlet of which is arranged at the water-blocking isolation front part 42, and the water passage groove 44 connects the rear water cavity 12. The fixed sealing seat 4 and the valve core body cylinder 1 are sealed by the sealing rings 71 and 72 arranged on the front and rear sides of the outlet ports 11.

[0022] The front end of the sealing rod 3 is connected with the valve 5 to control the forward and backward movement of the valve 5, the valve 5 is provided with a water blocking part 51 and a second water passing groove 52 connecting the water outlet cavity 43 and the rear water cavity 12, in the closed state of the valve core structure, the water outlet cavity 43 and the rear water cavity 12 are connected by the second water passing groove 52; the valve 5 cooperates with the water outlet cavity 43 in the fixed sealing seat to be able to close and open the water outlet hole 431, so that the valve core structure is in the closed state and the open state respectively, in the closed state, the valve 5 and the water outlet cavity wall form a sealing connection, the water outlet hole 431 is closed, in the open state, the valve 5 can move backward, the valve 5 and the water outlet cavity wall also form a gap 45 for water flow, not only easy to open, but also large flow. The structure of the application can make the sealing rod 3 thinner, only meet its own strength, can greatly reduce the friction resistance when opening and closing, so that the pressing operation is more easy.

[0023] In the fixed sealing seat 4, a plurality of water passing grooves 44 can be distributed, and a plurality of second water passing grooves 52 can also be provided on the valve 5, so as to further increase the flow and make the stress on the valve 5 more uniform.

[0024] The overall shape of the water outlet cavity 43 in the fixed sealing seat 4 is inverted conical, the valve 5 is sealingly connected with the inverted conical inclined wall 432 of the water outlet cavity 43, such inverted conical inclined wall can play a water guiding role, and make the switch more sensitive and easy, the valve 5 is out of sealing connection at the moment of moving backward, and the gap 45 for water flow between the valve 5 and the water outlet cavity wall 432 is formed.

[0025] The valve 5 is preferably barrel-shaped structure, the bottom thereof serves as the water blocking part 51, the mouth part 53 thereof faces forward, the valve 5 is provided with a cavity 54 in the mouth part 53 to the bottom, the bottom center of the valve 5 is connected with the sealing rod 3, the eccentric position of the bottom is provided with the second water passing groove 52, the upper and lower parts of the outer wall of the valve 5 are respectively provided with sealing rings 55, 56 to be able to sealingly connect with the water outlet cavity wall on the front and rear sides of the water outlet hole.

[0026] The valve core body cylinder 1 is provided with an isolation structure 13 behind the fixed sealing seat 4, the isolation structure 13 is provided with a rear sealing element mounting seat 14 which is open forward, the bottom of the rear sealing element mounting seat 14 is provided with a center hole 15 for the sealing rod 3 to pass through; the rear sealing element mounting seat 14 is provided with a clamping structure, which can be a protrusion 16 on the inner wall of the rear sealing element mounting seat 14. The rear sealing element 61 is tightly fixed on the bottom of the rear sealing element mounting seat 14 by the cooperation of the plastic clamping element 62 and the protrusion 16, and the rear sealing element 61 is in sliding sealing cooperation with the sealing rod 3. This installation structure is very convenient for the installation of the internal sealing element 61 of the valve core, and can make the internal structure of the valve core be inserted and installed layer by layer, and the installation means is simple and convenient, which will be further described in the subsequent paragraphs.

[0027] The reset support spring 102 of the push switch can be arranged by using the back surface shape of the isolation structure 13 (provided with the rear sealing element mounting seat 14), a spring seat 140 is formed by using the back surface shape, the reset support spring 102 is arranged on the spring seat 140, and supports the sliding shaft 101 of the switch by supporting the sealing rod 3, and can also enlarge the diameter of the spring ring.

[0028] The water inlet 2 adopts a separate water inlet element which is clamped with the valve core body cylinder, the water inlet element is provided with a clamping jaw 21 which is inserted axially backward, the clamping jaw 21 is elastically clamped into the clamping hole 17 on the wall of the valve core body cylinder 1 to realize the clamping, and tightly pushes the fixed sealing seat 4 which is placed behind the water inlet element backward, the fixed sealing seat 4 has been placed into the valve core body cylinder 1 before; a first sealing ring 71 is arranged between the rear end of the water inlet element and the fixed sealing seat 4 to seal the water inlet element, the fixed sealing seat 4 and the valve core body cylinder 1; a second sealing ring 72 is arranged at the rear of the fixed sealing seat 4 to seal the fixed sealing seat 4 and the valve core body cylinder 1, and the water outlet 11 is located between the first sealing ring 71 and the second sealing ring 72. When the water inlet element is pressed in, the sealing cover 5 is also tightly installed while tightly pushing the fixed sealing seat 4.

[0029] The outer wall of the valve core body cylinder 1 is provided with a sealing ring mounting groove 18 behind the water outlet 11, the end of the water inlet element is also provided with a sealing ring mounting groove 22, the outer diameter of the valve core body cylinder 1 matches the inner diameter of the angle valve shell and is provided with an external thread 19, so that it can be inserted into the angle valve shell and be tightly connected and sealed.

[0030] The switch assembly of the push switch comprises a sliding shaft 101 with a certain length, and a motion control mechanism which provides two rest positions for the transmission shaft 101 in the direction of being pressed, corresponding to the closed state and the open state of the valve respectively. The motion control mechanism will be described further below.

[0031] The mounting seat 103 of the push switch is threadedly connected with the rear end of the valve core main body cylinder 1, the front end of the sliding shaft 101 of the push switch is clampedly connected with the clamping seat 31 at the rear part of the sealing rod 3, a clamping foot is arranged at the front end of the sliding shaft 101, the clamping seat 31 is arranged at the rear end of the sealing rod 3, a clamping hole 32 is arranged on the clamping seat 31, and when assembled, the sliding shaft 101 and the sealing rod 3 can be clampedly connected together by pressing the sliding shaft 101. The front part of the clamping seat can also be used as an action part of the supporting spring 102.

[0032] The motion control mechanism will be described further below. Part of the structure of the motion control mechanism is arranged on the sliding shaft 101, and the other part of the structure is connected with the mounting seat 103. The mounting seat 103 is provided with a central hole for the sliding shaft 101 to pass through. The structure of the motion control mechanism on the mounting seat 103 can be a stop hook 105 which is fixed together with the mounting seat 103 by a ring spring 104, and the structure on the sliding shaft 101 can be two stop positions arranged on the surface of the pressing rod 101, which are a rear stop position and a front stop position respectively, and a first one-way sliding groove of the hook part of the stop hook which enables the transmission shaft 101 to move from the rear stop position to the front stop position in cooperation with the hook part of the stop hook, and a second one-way sliding groove which enables the sliding shaft 101 to move from the front stop position to the rear stop position in cooperation with the hook part of the stop hook. The first one-way sliding groove comprises a first sliding path segment which starts from the rear stop position and goes backward, and a second sliding path segment which is connected with the first sliding path segment and leads to the front stop position. The second one-way sliding groove comprises a third sliding path segment which starts from the front stop position, and a fourth sliding path segment which is connected with the third sliding path segment and goes forward, and the fourth sliding path segment is connected to the rear stop position or connected to the first sliding path.

[0033] To realize the one-way relative motion of the sliding groove and the hook part of the stop hook, the groove wall design or the groove bottom design can be used. In this embodiment, the groove bottom design is used to realize the one-way relative motion, which makes the switch action more reliable and has a longer service life. The scheme is that the first sliding path segment and the second sliding path segment are connected in a stepped manner, and at the connection position, the groove bottom surface of the second sliding path segment is lower than the groove bottom surface of the first sliding path segment; the third sliding path segment and the fourth sliding path segment are connected in a stepped manner, and at the connection position, the groove bottom surface of the fourth sliding path segment is lower than the groove bottom surface of the third sliding path segment; the second sliding path segment has a downward step near the lower stop position to connect with the third sliding path segment; the fourth sliding path segment and the first sliding path segment are connected in a stepped manner, and at the connection position, the groove bottom surface of the first sliding path segment is lower than the groove bottom surface of the fourth sliding path segment.

[0034] Note that the motion control mechanism is not the part to be improved by the present application, which is a prior art. The above description is only one example, and is not a limitation on the scope of the motion control mechanism of the present application. For example, a structure similar to that commonly used in a push-type ball-point pen can also be used, which can also provide two rest positions in the forward and rearward directions of the transmission shaft 101.

[0035] In the description of the present application, it should be understood that the terms "one end", "the other end", "outer side", "inner side", "horizontal", "end", "length", "outer end", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only used for the purpose of simplicity in description, and are not indicative or implied of relative importance.

[0036] The above description is only a specific embodiment of the present application, but the structural features of the present application are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present application are covered by the protection scope of the present application.

Claims

1. An axial water inlet and lateral water outlet valve core structure, comprising a press switch and a valve core, the valve core comprising a valve core main body cylinder, an axial front end port of the valve core main body cylinder being provided with a water inlet, a front side wall of the valve core main body cylinder being provided with a water outlet, an axially forward and backward movable sealing rod being arranged in the valve core main body cylinder on a central axis, the sealing rod being connected with the press switch, and the press switch controlling the movement of the sealing rod; characterized in that The fixed sealing seat is arranged in the valve core body cylinder, and a water blocking and isolating front part is arranged in the fixed sealing seat; a water outlet cavity which is open to the rear is arranged behind the water blocking and isolating front part; a water outlet hole which is communicated with the water outlet is arranged in the side wall of the water outlet cavity; a rear water cavity is arranged behind the fixed sealing seat in the valve core body cylinder; a water passing groove is arranged in the fixed sealing seat, and the inlet of the water passing groove is arranged in the water blocking and isolating front part; the water passing groove is communicated with the rear water cavity. The front end of the sealing rod is connected with the valve piece to control the forward and backward movement of the valve piece; the valve piece is provided with a water blocking part and a second water passing groove which is communicated with the water outlet cavity and the rear water cavity; the valve piece is matched with the water outlet cavity in the fixed sealing seat to close and open the water outlet hole, so that the valve core structure is in a closed state and an open state respectively; in the closed state, the valve piece is in sealing connection with the wall of the water outlet cavity to close the water outlet hole; in the open state, the valve piece can move to the rear, and a gap for water flow is formed between the valve piece and the wall of the water outlet cavity.

2. The spool structure of claim 1, wherein The valve piece is in a barrel-shaped structure, the bottom of the valve piece is used as the water blocking part, and the mouth part of the valve piece faces the front; a cavity is arranged in the valve piece from the mouth part to the bottom; the center of the bottom of the valve piece is connected with the sealing rod; the second water passing groove is arranged at the eccentric position of the bottom; the upper part and the lower part of the outer side wall of the valve piece are respectively provided with sealing rings to be in sealing connection with the wall of the water outlet cavity on the front side and the rear side of the water outlet hole.

3. The spool structure of claim 1 wherein The water outlet cavity in the fixed sealing seat is in an overall inverted conical shape; the valve piece is in sealing connection with the inclined wall of the inverted conical shape of the water outlet cavity; when the valve piece moves to the rear to exit the sealing connection, a gap for water flow is formed between the valve piece and the wall of the water outlet cavity.

4. The spool structure of claim 1 wherein A separation structure is arranged behind the fixed sealing seat in the valve core body cylinder; the separation structure is provided with a rear sealing element mounting seat which is open to the front; the bottom of the rear sealing element mounting seat is provided with a center hole for the sealing rod to pass through; the rear sealing element mounting seat is provided with a clamping structure; the rear sealing element is fixedly arranged on the bottom of the rear sealing element mounting seat by being clamped and matched with the clamping structure; the rear sealing element is in sliding sealing connection with the sealing rod.

5. The spool structure of claim 4 wherein A spring seat is formed behind the separation structure; the return support spring of the press switch is arranged on the spring seat to support the sliding shaft of the switch by supporting the sealing rod.

6. The spool structure of claim 1 wherein A separate water inlet element is arranged in the water inlet; the water inlet element is clamped with the valve core body cylinder and tightly presses the fixed sealing seat to the rear; a first sealing ring is arranged between the rear end of the water inlet element and the fixed sealing seat to seal the water inlet element, the fixed sealing seat and the valve core body cylinder; a second sealing ring is arranged at the rear of the fixed sealing seat to seal the fixed sealing seat and the valve core body cylinder; and the water outlet is located between the first sealing ring and the second sealing ring.

7. The spool structure of claim 1 wherein The mounting seat of the press switch is threadedly connected with the rear end of the valve core body cylinder; the clamping seat of the rear part of the sealing rod is clamped and connected with the front end of the sliding shaft of the press switch; when assembled, the sliding shaft is pressed down, and the sliding shaft and the sealing rod are clamped and connected together.

8. The spool structure of claim 1 wherein The valve core structure is the valve core structure of an angle valve.

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