Valve with valve element easy to replace

Abstract

The utility model belongs to the technical field of valves, and relates to a valve with a valve core easy to replace, which comprises a cylindrical shell and an integrated valve core axially arranged in the cylindrical shell, an annular mounting plate is arranged on the inner wall of the cylindrical shell, one axial end of the integrated valve core is rotatably arranged on the annular mounting plate, and the other axial end of the integrated valve core is rotatably arranged on the annular mounting plate. A switch valve block capable of rotating independent of the integrated valve element is arranged in the integrated valve element, and a positioning protrusion abutting against the side wall of the switch valve block in the circumferential direction is further arranged on the inner wall of the cylindrical shell. The valve element is integrally designed, the whole valve element can be taken out from the valve shell at a time, assembling of small accessories is not needed, replacement of the valve element is particularly facilitated when the valve is overhauled, and the process is simple and easy to operate. Due to the fact that main water channels are designed in the valve element in a sealing mode, the sealing problem between the valve bodies does not need to be paid attention to too much when the valve element is installed, only the valve element needs to be placed in according to the structure in the cylindrical shell, and the problem of water leakage caused by misoperation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a valve with an easy-to-replace valve core. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow of fluids in a fluid system. It enables or stops the flow of media within piping and equipment, and can control its flow. Valves are control components in pipeline fluid delivery systems, used to change the cross-section of the passage and the direction of the medium's flow. They have functions such as diverting, shutting off, throttling, checking, diverting, or providing overflow and pressure relief.

[0003] Patent CN215806512U discloses a water diversion valve core with switch-controlled water flow regulation. The valve core comprises a core housing, a base, a fixed ceramic valve core, a movable ceramic valve core, a water diversion outer seat, a water diversion inner seat, a switch reversing valve core, a valve stem, a pressure spring, and a drive assembly. The fixed ceramic valve core is mounted on the base, while the movable ceramic valve core is mounted on the fixed ceramic valve core. The inner seat is sealed within the water diversion outer seat's water guide cavity. The valve stem is sealed to the valve stem channel. The water diversion outer seat is mounted on the movable ceramic valve core. The switch reversing valve core cooperates with the water mixing switch valve core seat and the lower portion of the reversing cavity. The drive assembly is connected to the water diversion outer seat and extends through the core housing's shaft sleeve. The lower end of the core housing is fixed to the base. The water diversion outer seat's water guide cavity and the core housing form a water outlet cavity, which corresponds to the wall outlet hole. Due to this structure, the switch valve core cooperates with the water mixing switch valve core seat and the reversing cavity to achieve water path conversion. The movable ceramic valve core rotates to adjust the water flow.

[0004] In the above scheme, due to this structure, the on-off valve core cooperates with the water mixing on-off valve core seat and the reversing chamber to realize water path switching, and the dynamic ceramic valve core rotates to adjust the water volume. However, the valve core is assembled from a variety of parts, and if the valve core encounters problems, both inspection and subsequent repair and replacement are very cumbersome. Utility Model Content

[0005] The purpose of the utility model is to provide a valve with an easy-to-replace valve core that can solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A valve with easy valve core replacement includes a cylindrical shell and an integrated valve core axially arranged in the cylindrical shell, an annular mounting plate is provided on the inner wall of the cylindrical shell, one axial end of the integrated valve core is rotatably provided on the annular mounting plate, a switch valve block that can rotate independently of the integrated valve core is provided in the integrated valve core, and a positioning protrusion that circumferentially abuts against the side wall of the switch valve block is also provided on the inner wall of the cylindrical shell.

[0008] In the valve with easy-to-replace valve core, the integrated valve core includes an upper valve disc and a lower valve disc connected to each other, the switch valve block is rotatably arranged between the upper valve disc and the lower valve disc through a sliding sealing structure, and the lower valve disc is rotatably arranged on the annular mounting plate.

[0009] In the valve with easy valve core replacement, the sliding sealing structure includes two mutually embedded annular protrusions and annular grooves, the annular protrusions and the annular grooves are in sliding contact with each other and are provided with a sealing layer.

[0010] In the valve with easy-to-replace valve core, a positioning protrusion concentrically arranged with the lower valve disc is provided around the inner ring of the annular mounting plate, and the positioning protrusion is in mating contact with the end of the lower valve disc away from the switch valve block.

[0011] In the valve with easy-to-replace valve core, an arcuate slot is axially provided on the switch valve block, and a connecting rod connecting the upper valve disc and the lower valve disc passes through the arcuate slot and slides along the arcuate slot.

[0012] In the valve with easy valve core replacement, a side wall of the lower valve disc is provided with an avoidance structure, so that the lower valve disc can pass axially between the positioning protrusions.

[0013] In the valve with easy-to-replace valve core, the upper valve disc includes a disc body and a control shaft arranged at the center of the disc body. The side wall of the disc body is clearance-matched with the inner wall of the cylindrical shell. At least a portion of the disc body axially rests on the positioning protrusion, and the control shaft extends out of the cylindrical shell from the side away from the lower valve disc.

[0014] In the valve with easy-to-replace valve core, a removable end cover is provided at one end of the cylindrical shell close to the upper valve disc. The end cover is axially abutted against the upper valve disc through an annular sliding sealing structure, and the control shaft passes through the end cover from the inner ring of the sliding sealing structure.

[0015] In the valve with easy-to-replace valve core, a water inlet cavity is provided in the upper valve disc, the water inlet cavity is radially connected to the water inlet on the side of the cylindrical shell, and the water inlet cavity is connected to the water outlet at the end of the cylindrical shell through the valve core channel.

[0016] In the valve with easy-to-replace valve core, the valve core channel includes axially corresponding movable channels opened in the upper valve disc and the lower valve disc and a fixed channel opened in the switch valve block. The movable channel and the fixed channel are connected when the valve is open.

[0017] The advantages of the utility model are:

[0018] The valve core is a one-piece design, allowing it to be removed from the valve housing in one piece, eliminating the need for assembly of smaller components. This makes valve core replacement during valve maintenance particularly easy and simple. Because the main water passages are sealed within the valve core, there's no need to worry about sealing between the valve body and the valve body during installation. Simply insert the valve core according to the internal structure of the cylindrical housing, eliminating leaks caused by improper operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0021] Figure 3 This is a schematic diagram of the integrated valve core structure of the utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the switch valve block of the utility model.

[0023] In the figure, there are a cylindrical shell 1, an annular mounting plate 11, a positioning protrusion 12, an end cover 13, an integrated valve core 2, a switch valve block 21, an upper valve disc 22, a lower valve disc 23, an arc-shaped slide groove 24, an annular protrusion 31, an annular groove 32, and a sealing layer 33. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the utility model and the accompanying drawings to further describe the technical solution of the utility model, but the utility model is not limited to these embodiments.

[0025] like Figures 1-4 As shown, a valve with easy valve core replacement includes a cylindrical shell 1 and an integrated valve core 2 axially arranged in the cylindrical shell 1, an annular mounting plate 11 is provided on the inner wall of the cylindrical shell 1, one axial end of the integrated valve core 2 is rotatably set on the annular mounting plate 11, a switch valve block 21 that can rotate independently of the integrated valve core 2 is provided in the integrated valve core 2, and a positioning protrusion 12 that abuts circumferentially against the side wall of the switch valve block 21 is also provided on the inner wall of the cylindrical shell 1.

[0026] That is, the integrated valve core 2 is directly inserted into the cylindrical shell 1 axially along the positioning protrusion 12, and the end of the integrated valve core 2 is positioned against the annular mounting plate 11, so that the switch valve block 21 in the integrated valve core 2 can just fit and contact with the positioning protrusion 12. When the integrated valve core 2 rotates, the switch valve block 21 is blocked by the positioning protrusion 12, causing the relative angle between the switch valve block 21 and the integrated valve core 2 to change, so that the hole in the valve core forms a water flow path.

[0027] In this embodiment, the integrated valve core 2 includes an upper valve disc 22 and a lower valve disc 23 connected to each other. The switch valve block 21 is rotatably arranged between the upper valve disc 22 and the lower valve disc 23 through a sliding sealing structure, and the lower valve disc 23 is rotatably arranged on the annular mounting plate 11.

[0028] There is a space between the connected upper valve disc 22 and the lower valve disc 23 for setting up the switch valve block 21, and the switch valve block 21 is clamped between the two using an annular sliding sealing structure, which not only plays a sealing role in isolating the inside and outside of the valve core, but also can serve as a track for the switch valve block 21 to rotate concentrically relative to the upper valve disc 22 and the lower valve disc 23, so that when the integrated valve core 1 rotates to the open state, the internal holes can align with each other to form a passage.

[0029] In this embodiment, the sliding sealing structure includes an annular protrusion 31 and an annular groove 32 that are embedded in each other. The annular protrusion 31 and the annular groove 32 are in sliding contact with each other and a sealing layer 33 is provided therebetween.

[0030] Between the switch valve block 21 and the upper valve disc 22, an annular protrusion 31 is arranged at the lower end of the upper valve disc 22, and cooperates with the annular groove 32 opened at the upper end of the switch valve block 21. Between the switch valve block 21 and the lower valve disc 23, an annular protrusion 31 is arranged at the lower end of the switch valve block 21, and cooperates with the annular groove 32 opened at the upper end of the lower valve disc 23. The water channel is sealed by utilizing a fitting surface with multiple bends and a sealing layer 33.

[0031] In this embodiment, a positioning protrusion 12 is provided around the inner ring of the annular mounting plate 11 and is concentric with the lower valve disc 23 . The positioning protrusion 12 is in contact with the end of the lower valve disc 23 away from the switch valve block 21 .

[0032] The positioning protrusion 12 cooperates with the lower end surface of the lower valve disc 23 to improve the stability of the valve core during rotation, and an inclined surface is added to the positioning protrusion 12 to increase the accuracy of the integrated valve core 1 when inserted into the cylindrical shell 2.

[0033] In this embodiment, an arcuate slot 24 is axially provided on the switch valve block 21 , and a connecting rod connecting the upper valve disc 22 and the lower valve disc 23 passes through the arcuate slot 24 and slides along the arcuate slot 24 .

[0034] The arcuate slot 24, centered around the switch valve block 21, serves as a guide for the integrated valve core 1 as it rotates relative to the switch valve block 21. Together with the sliding seal, it restricts the relative movement of the two. When the connecting rod reaches one of the endpoints of the arcuate slot 24, the integrated valve core 1 opens. At this point, as the connecting rod slides toward the other end, it gradually reduces the flow rate in the channel until it is completely closed.

[0035] In this embodiment, a relief structure is provided on the side wall of the lower valve disc 23 , so that the lower valve disc 23 can pass axially between the positioning protrusions 12 .

[0036] Due to the presence of positioning protrusions 12 in the cylindrical shell 1, if the lower valve disc 23 has the same diameter as the inner wall, it will be blocked by the positioning protrusions 12 when the valve core is inserted. Therefore, the lower valve disc 23 is cut off according to the position of the positioning protrusions 12 on the inner wall, so that the lower valve disc 23 can pass between the positioning protrusions 12.

[0037] In this embodiment, the upper valve disc 22 includes a disc body and a control shaft arranged at the center of the disc body. The side wall of the disc body is clearance-matched with the inner wall of the cylindrical shell 1. At least a portion of the disc body axially rests on the positioning protrusion 12, and the control shaft extends out of the cylindrical shell 1 from the side away from the lower valve disc 23.

[0038] The side wall of the disk body and the inner wall of the cylindrical shell 1 need to have a certain degree of fit, so that a temporary water storage area is formed in the area above the disk body inside the cylindrical shell 1. When liquid enters the water inlet on the side of the cylindrical shell 1, it will first continue to flow in it, and then flow out along the valve core channel after the valve core is opened.

[0039] After the integrated valve core 1 is installed in place, a portion of the disc body will also rest against the upper end of the positioning protrusion 12, and together with the inner wall of the cylindrical shell 1, it will stabilize the rotation of the valve core, and use the positioning protrusion 12 to share the axial pressure on the annular mounting plate 11.

[0040] In this embodiment, a removable end cover 13 is provided at one end of the cylindrical shell 1 close to the upper valve disc 22. The end cover 13 is axially abutted against the upper valve disc 22 through an annular sliding sealing structure, and the control shaft passes through the end cover 13 from the inner ring of the sliding sealing structure.

[0041] The end cover 13 is connected to the cylindrical shell 1 through threads. During the process of tightening the threads, axial pressure is applied to the integrated valve core 1, so that the contact between the lower valve disc 23 and the annular mounting plate 11 and the upper valve disc 22 and the positioning protrusion 12 is more stable and the sealing effect is more reliable.

[0042] The control shaft of the upper valve disc 22 needs to extend out of the cylindrical shell 1, so the control shaft is separated from the water storage area inside the cylindrical shell 1 by a sliding sealing structure so that the control shaft can extend from the inner ring of the sliding sealing structure.

[0043] In this embodiment, a water inlet cavity is provided in the upper valve disc 22 , which is radially connected to the water inlet on the side of the cylindrical shell 1 , and is connected to the water outlet at the end of the cylindrical shell 1 through the valve core channel.

[0044] Multiple water inlet holes are opened on the side wall of the upper valve disc 22, so that the liquid in the water storage area can enter the water inlet cavity in the valve core. Since the water inlet hole needs to be opened too large to ensure the torsional strength of the valve core, a water inlet cavity is set in the valve core so that the liquid can enter the valve core in advance to ensure the flow rate of the liquid.

[0045] In this embodiment, the valve core channel includes axially corresponding movable channels opened in the upper valve disc 22 and the lower valve disc 23 and a fixed channel opened in the switch valve block 21. The movable channel and the fixed channel are connected when the valve is open.

[0046] The valve core channel is composed of an upper valve disc 22, a lower valve disc 23 and an axially opened hole in the switch valve block 21. The holes of the fixedly connected upper valve disc 22 and the lower valve disc 23 completely correspond to each other up and down, and the holes of the switch valve block 21 are aligned with other holes only when the integrated valve core 1 is rotated to the open state, thereby achieving the maximum flow rate of the liquid.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A valve with an easily replaceable valve core, comprising a cylindrical housing (1) and an integral valve core (2) axially arranged in the cylindrical housing (1), characterized in that: An annular mounting plate (11) is provided on the inner wall of the cylindrical housing (1), one axial end of the integrated valve core (2) is rotatably provided on the annular mounting plate (11), a switch valve block (21) that can rotate independently of the integrated valve core (2) is provided in the integrated valve core (2), and a positioning protrusion (12) that abuts against the side wall of the switch valve block (21) in the circumferential direction is also provided on the inner wall of the cylindrical housing (1).

2. The valve with easily replaceable valve core according to claim 1, characterized in that: The integrated valve core (2) comprises an upper valve disc (22) and a lower valve disc (23) connected to each other; the switch valve block (21) is rotatably arranged between the upper valve disc (22) and the lower valve disc (23) via a sliding sealing structure; and the lower valve disc (23) is rotatably arranged on the annular mounting plate (11).

3. The valve with easily replaceable valve core according to claim 2, characterized in that: The sliding sealing structure comprises two mutually embedded annular protrusions (31) and annular grooves (32), wherein the annular protrusions (31) and the annular grooves (32) are in sliding contact with each other and a sealing layer (33) is provided.

4. The valve with easily replaceable valve core according to claim 2, characterized in that: A positioning protrusion (12) is provided around the inner ring of the annular mounting plate (11) and is arranged concentrically with the lower valve disc (23). The positioning protrusion (12) is in contact with an end of the lower valve disc (23) away from the switch valve block (21).

5. The valve with easily replaceable valve core according to claim 2, characterized in that: An arc-shaped sliding groove (24) is axially provided on the switch valve block (21), and a connecting rod connecting the upper valve disc (22) and the lower valve disc (23) passes through the arc-shaped sliding groove (24) and slides along the arc-shaped sliding groove (24).

6. The valve with easily replaceable valve core according to claim 2, characterized in that: An avoidance structure is provided on the side wall of the lower valve disc (23), so that the lower valve disc (23) can pass axially between the positioning protrusions (12).

7. The valve with easily replaceable valve core according to claim 2, characterized in that: The upper valve disc (22) includes a disc body and a control shaft arranged at the center of the disc body. The side wall of the disc body is in clearance fit with the inner wall of the cylindrical shell (1). At least a portion of the disc body axially abuts against the positioning protrusion (12). The control shaft extends out of the cylindrical shell (1) from the side away from the lower valve disc (23).

8. The valve with easily replaceable valve core according to claim 7, characterized in that: A detachable end cover (13) is provided at one end of the cylindrical shell (1) close to the upper valve disc (22). The end cover (13) is axially abutted against the upper valve disc (22) via an annular sliding sealing structure, and the control shaft passes through the end cover (13) from the inner ring of the sliding sealing structure.

9. The valve with easily replaceable valve core according to claim 7, characterized in that: A water inlet cavity is provided in the upper valve disc (22), the water inlet cavity being radially connected to the water inlet on the side of the cylindrical shell (1), and the water inlet cavity being connected to the water outlet at the end of the cylindrical shell (1) through a valve core channel.

10. The valve with easily replaceable valve core according to claim 9, characterized in that: The valve core channel comprises axially corresponding movable channels provided in the upper valve disc (22) and the lower valve disc (23), and a fixed channel provided in the switch valve block (21); the movable channel and the fixed channel are connected when the valve is in an open state.

Images