Integrated two-way transposition liquid separation valve element

Abstract

The utility model discloses an integrated two-way transposition liquid separation valve element which comprises a shell, a push rod and a piston. First and second liquid outlets are formed in the side wall of the shell, and a liquid inlet is formed in the bottom of the shell; a first guide plate is arranged in an inner cavity of the shell, a first guide port is formed in the lower end face of the first guide plate, a first guide channel connected with the first guide port is arranged in the first guide plate, and the other end of the channel is connected with a first liquid outlet; a second guide plate is arranged below the first guide plate and spaced from the inner wall of the shell, a second guide port is formed in the upper end face, a second guide channel connected with the second guide port is arranged in the shell, and the other end of the channel is connected with a second liquid outlet; the push rod axially penetrates through the first flow guide plate, and the lower end of the push rod is connected with the piston which shifts between the first flow guide opening and the second flow guide opening and is used for blocking the two flow guide openings; through the integrated combination design of the shell, the push rod, the piston and the double flow guide plates, rapid and reliable switching of liquid flow is achieved, complexity and manufacturing cost of a pipeline system are reduced, and meanwhile maintenance difficulty is lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid distribution valve, specifically to integrated bidirectional transposition liquid distribution valve core. BACKGROUND

[0002] In the hydraulic pipeline system, the double branch switching of liquid flow is a crucial and common technical requirement. Traditionally, in order to realize this double branch switching function, a switching device composed of multiple valves, pipeline connectors and other complex structures is usually used. However, this traditional method has many shortcomings in practical application.

[0003] Firstly, the traditional double branch switching device has a complex structure, requiring a large number of valves and pipeline connectors, which not only increases the manufacturing cost of the system, but also makes the installation and maintenance of the system cumbersome and time-consuming. Secondly, the coordinated control of multiple valves reduces the reliability of the system, and the matching precision and response speed between valves directly affect the accuracy and stability of switching. Once a valve fails, the entire switching device may not work properly. In addition, in the frequent switching process of the traditional switching device, due to the large frequency and amplitude of mechanical movement, the parts are severely worn, resulting in a shortened service life of the system. SUMMARY

[0004] The utility model aims at the problems existing in the prior art, and provides an integrated bidirectional transposition liquid distribution valve core, which realizes rapid and reliable switching of liquid flow through the integrated combination design of the shell, push rod, piston and double guide plates, reduces the complexity and manufacturing cost of the pipeline system, and reduces the maintenance difficulty.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of:

[0006] The utility model provides an integrated bidirectional commutation distribution valve core, including casing, push rod and piston, the side wall of casing is equipped with first liquid outlet and second liquid outlet, and the bottom end surface of casing is equipped with liquid inlet, the inner chamber of casing is equipped with first flow guide plate and is separated up and down, the lower end surface of first flow guide plate is equipped with first flow guide mouth, and the inside of first flow guide plate is equipped with first flow guide channel with first flow guide mouth is connected, and the other end of first flow guide channel is connected first liquid outlet, the inner chamber of casing is equipped with second flow guide plate below first flow guide plate, and the interval flow channel between second flow guide plate and the inner wall of casing has, the upper end surface of second flow guide plate is equipped with second flow guide mouth, and the inside of second flow guide plate is equipped with second flow guide channel with second flow guide mouth is connected, and the other end of second flow guide channel is connected second liquid outlet, push rod is along the axial through first flow guide plate, and from first flow guide mouth, the lower end of push rod is connected piston, and piston is commuted between first flow guide mouth and second flow guide mouth for blocking first flow guide mouth and second flow guide mouth respectively.

[0007] Further, the distribution valve core includes a self-locking button switch arranged on the upper end of the casing, the upper end of the push rod is connected to a stem, and the stem is connected to the self-locking button switch; the outer side of the stem is provided with a wing plate, and the wing plate and the first flow guide plate are provided with a first return spring; when the self-locking button switch is pressed for the first time, the piston is pushed to the second flow guide mouth, and the self-locking button switch is limited by the clamping block of the inner wall of the casing; when the self-locking button switch is pressed again, the self-locking button switch is decoupled from the clamping block of the inner wall of the casing, and the piston is retracted to the first flow guide mouth under the action of the first return spring.

[0008] Further, the stem is provided with a second return spring, the upper end of the second return spring extends out of the stem and is connected to a steel ball, and the stem abuts against the self-locking button switch through the steel ball.

[0009] Further, the upper side of the first flow guide plate is provided with a sealing plate, the sealing plate is in sealing contact with the inner wall of the casing; the push rod passes through the sealing plate and is in movable sealing cooperation with the sealing plate.

[0010] Further, the piston has a ring structure, the lower end of the push rod is provided with a ring-shaped limiting groove, and the piston is sleeved in the limiting groove; the piston is provided with an inclined surface for contacting the second flow guide mouth.

[0011] Further, the liquid inlet is provided with a filter screen.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. Through the integrated design of the shell, push rod, piston and double guide plate, the fluid flow can be switched quickly and reliably, reducing the complexity of the pipeline system and manufacturing cost, while also reducing the difficulty of maintenance;

[0014] 2. The push rod drives the piston to move axially, and the piston is precisely switched between the first guide port and the second guide port, which meets the requirements of high-frequency switching, while ensuring complete isolation of the liquid flow path and improving the stability of the pipeline system.

[0015] 3. The integrated mechanical self-locking function of the self-locking push button switch further simplifies the operation process. The setting of the first and second reset springs ensures stable self-locking and accurate reset of the push rod and piston during operation, thus improving reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the liquid distribution valve core in one embodiment of this application;

[0018] Figure 2 This is a top view of the liquid distribution valve core in one embodiment of this application;

[0019] Figure 3 For this application Figure 2 Schematic diagram of the AA section structure;

[0020] Figure 4 For this application Figure 2 Schematic diagram of the BB section structure;

[0021] In the diagram: 1. Housing; 2. Push rod; 3. Piston; 4. First outlet; 5. Second outlet; 6. Inlet; 7. First guide plate; 7a. First guide port; 7b. First guide channel; 8. Second guide plate; 8a. Second guide port; 8b. Second guide channel; 9. Self-locking push-button switch; 10. Tube column; 11. Wing plate; 12. First return spring; 13. Second return spring; 14. Steel ball; 15. Seal plate; 16. Filter screen. Detailed Implementation

[0022] The technical solutions of the utility model will be clearly and completely described below in combination with the drawings in the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] In the description of the utility model, it should be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings or the orientation or position relation commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of the utility model, it should also be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] In the hydraulic pipeline system, the double shunt switching of liquid flow is a crucial and common technical requirement. Traditionally, in order to realize this double shunt switching function, a switching device composed of a plurality of valves, pipeline connectors and the like complex structure is usually adopted. However, this traditional way exposes many shortcomings in practical application.

[0027] Firstly, the traditional double shunt switching device has a complex structure, requiring a large number of valves and pipeline connectors, which not only increases the manufacturing cost of the system, but also makes the installation and maintenance of the system cumbersome and time-consuming. Secondly, the coordinated control of multiple valves reduces the reliability of the system, and the matching precision and response speed between valves directly affect the accuracy and stability of switching. Once a valve fails, the entire switching device may not work properly. In addition, during frequent switching, the frequency and amplitude of mechanical movement are large, causing severe wear of components and shortening the service life of the system.

[0028] Embodiments of the present application aim to solve the above technical problems, as shown in Figures 1 to 4 A kind of integrated bidirectional transposition distribution valve core is provided, including shell 1, push rod 2 and piston 3;The side wall of shell 1 is provided with first liquid outlet 4 and second liquid outlet 5, and the bottom end face of shell 1 is provided with liquid inlet 6;The inner cavity of shell 1 is provided with first flow guide plate 7 separating it up and down, and the lower end face of first flow guide plate 7 is provided with first flow guide port 7a, and the inside of first flow guide plate 7 is provided with first flow guide channel 7b connected with first flow guide port 7a, and the other end of first flow guide channel 7b is connected with first liquid outlet 4;The inner cavity of shell 1 is provided with second flow guide plate 8 below first flow guide plate 7, and there is a spacing flow channel between second flow guide plate 8 and the inner wall of shell 1;The upper end face of second flow guide plate 8 is provided with second flow guide port 8a, and the inside of second flow guide plate 8 is provided with second flow guide channel 8b connected with second flow guide port 8a, and the other end of second flow guide channel 8b is connected with second liquid outlet 5;Push rod 2 penetrates first flow guide plate 7 along the axial direction and extends from first flow guide port 7a, and the lower end of push rod 2 is connected with piston 3, and piston 3 transposes between first flow guide port 7a and second flow guide port 8a, for blocking first flow guide port 7a and second flow guide port 8a respectively.

[0029] The bidirectional transposition distribution valve core of the above embodiments drives push rod 2 to displace axially, and drives piston 3 to transpose between first flow guide port 7a and second flow guide port 8a. When piston 3 blocks second flow guide port 8a, liquid flows from liquid inlet 6, passes through the spacing flow channel between second flow guide plate 8 and the inner wall of shell 1, enters the space between first flow guide plate 7 and second flow guide plate 8. Since second flow guide port 8a is blocked, liquid can only enter first flow guide channel 7b through first flow guide port 7a, and finally flow out from first liquid outlet 4, realizing first liquid flow shunt. Conversely, when piston 3 blocks first flow guide port 7a, liquid flows through second flow guide port 8a into second flow guide channel 8b, and flows out from second liquid outlet 5, realizing second liquid flow shunt.

[0030] Through the combined design of shell 1, push rod 2, piston 3 and double flow guide plates, rapid and reliable switching of liquid flow is realized, and integrated design reduces the complexity and manufacturing cost of the pipeline system, while reducing the difficulty of maintenance;

[0031] The precise repositioning of piston 3 between the first guide port 7a and the second guide port 8a ensures complete isolation of the fluid flow path, avoids reliability issues caused by multi-valve coordinated control, and improves the stability of the pipeline system.

[0032] The axial displacement design of the push rod and piston makes the switching process more efficient, meets the needs of high-frequency switching, and significantly improves the dynamic performance of the pipeline system.

[0033] Furthermore, by reducing the frequency and amplitude of mechanical movement, wear on components is reduced, further extending the service life of the piping system.

[0034] In some embodiments, the liquid separator valve core includes a self-locking push button switch 9 located at the upper end of the housing 1, the upper end of the push rod 2 is connected to the tubing column 10, and the tubing column 10 is connected to the self-locking push button switch 9; the outer side of the tubing column 10 is provided with a wing plate 11, and a first return spring 12 is provided between the wing plate 11 and the first guide plate 7.

[0035] When the self-locking button switch 9 is pressed for the first time, the piston 3 is pushed to the second guide port 8a, and the self-locking button switch 9 is engaged with the locking block on the inner wall of the housing 1 for a limited position; when the self-locking button switch 9 is pressed again, the self-locking button switch 9 is disengaged from the locking block on the inner wall of the housing 1, and the piston 3 retracts to the first guide port 7a under the action of the first reset spring 12.

[0036] The self-locking push-button switch 9 can utilize existing technology. For example, it can employ a valve core switch structure disclosed in patents CN109630746A and CN219493225U. The self-locking push-button switch 9 integrates a mechanical self-locking function, maintaining its operating state without continuous force and achieving a two-stage pressing function. The first press advances and locks the push rod 2, while a second press unlocks and retracts it, simplifying the operation process.

[0037] In some embodiments, a second return spring 13 is provided inside the tube column 10. The upper end of the second return spring 13 extends out of the tube column 10 and is connected to a steel ball 14. The tube column 10 abuts against the self-locking push button switch 9 through the steel ball 14.

[0038] The second return spring 13 is connected between the tube column 10 and the steel ball 14, and is mainly used to reset the self-locking push button switch 9. When the self-locking push button switch 9 is pressed and released for the first time, the second return spring 13 will partially rebound, pushing the self-locking push button switch 9 to press against the locking block on the inner wall of the housing 1, forming a stable mechanical interlock. By making the elastic force of the second return spring 13 greater than that of the first return spring 12, the first return spring 12 is kept in a compressed state, ensuring the sealing pressure, and thus ensuring that the piston 3 can stably seal the second guide port 8a.

[0039] In some embodiments, a baffle plate 15 is provided on the upper side of the first guide plate 7, and the baffle plate 15 is in sealed contact with the inner wall of the housing 1; the push rod 2 passes through the baffle plate 15 and is in a movable sealed cooperation with the baffle plate 15.

[0040] By setting a sealing plate 15 and forming a movable sealing fit with the push rod 2, fluid leakage can be prevented during the movement of the push rod 2, thereby ensuring the reliability and stability of the liquid separator valve core.

[0041] In some embodiments, the piston 3 has an annular structure, the lower end of the push rod 2 is provided with an annular limiting groove, the piston 3 is provided in the limiting groove, and the piston 3 is provided with a sloping surface for contacting the second guide port 8a.

[0042] The lower end of the push rod 2 is provided with an annular limiting groove, which restricts the axial movement of the piston 3 and ensures that the piston 3 can move stably under the drive of the push rod 2. In addition, the piston 3 is provided with a ramp surface for contacting the second guide port 8a. When the piston 3 moves downward, the ramp surface can gradually contact and tightly fit with the second guide port 8a, resulting in a tighter contact and improved sealing effect.

[0043] In some embodiments, the liquid inlet 6 is provided with a filter screen 16. By providing the filter screen 16, impurities and particulate matter in the liquid can be filtered out, protecting the internal components of the valve core from damage.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated bidirectional switching liquid dispensing valve core, characterized in that, It includes a housing (1), a push rod (2), and a piston (3); The side wall of the housing (1) is provided with a first liquid outlet (4) and a second liquid outlet (5), and the bottom end face of the housing (1) is provided with a liquid inlet (6); The inner cavity of the shell (1) is provided with a first guide plate (7) that separates it vertically. The lower end face of the first guide plate (7) is provided with a first guide port (7a). The interior of the first guide plate (7) is provided with a first guide channel (7b) connected to the first guide port (7a). The other end of the first guide channel (7b) is connected to the first liquid outlet (4). The inner cavity of the shell (1) is provided with a second guide plate (8) located below the first guide plate (7), and there is a spacer channel between the second guide plate (8) and the inner wall of the shell (1); the upper end face of the second guide plate (8) is provided with a second guide port (8a), and the interior of the second guide plate (8) is provided with a second guide channel (8b) connected to the second guide port (8a), and the other end of the second guide channel (8b) is connected to the second liquid outlet (5); The push rod (2) passes through the first guide plate (7) axially and extends out from the first guide port (7a). The lower end of the push rod (2) is connected to the piston (3). The piston (3) is switched between the first guide port (7a) and the second guide port (8a) to block the first guide port (7a) and the second guide port (8a) respectively.

2. The integrated bidirectional switching liquid distribution valve core according to claim 1, characterized in that, Includes a self-locking push button switch (9) located at the upper end of the housing (1), the upper end of the push rod (2) is connected to the column (10), the column (10) is connected to the self-locking push button switch (9); the outer side of the column (10) is provided with a wing plate (11), and a first return spring (12) is provided between the wing plate (11) and the first guide plate (7); When the self-locking button switch (9) is pressed for the first time, the piston (3) is pushed to the second guide port (8a), and the self-locking button switch (9) is engaged with the locking block on the inner wall of the housing (1) for a limited position; when the self-locking button switch (9) is pressed again, the self-locking button switch (9) is disengaged from the locking block on the inner wall of the housing (1), and the piston (3) retracts to the first guide port (7a) under the force of the first reset spring (12).

3. The integrated bidirectional switching liquid distribution valve core according to claim 2, characterized in that, The tube column (10) is provided with a second return spring (13), the upper end of the second return spring (13) extends out of the tube column (10) and is connected to a steel ball (14), and the tube column (10) abuts against the self-locking push button switch (9) through the steel ball (14).

4. The integrated bidirectional switching liquid distribution valve core according to claim 1, characterized in that, The upper side of the first guide plate (7) is provided with a sealing plate (15), which is in sealed contact with the inner wall of the housing (1); the push rod (2) passes through the sealing plate (15) and is in movable sealing cooperation with the sealing plate (15).

5. The integrated bidirectional switching liquid distribution valve core according to claim 1, characterized in that, The piston (3) has an annular structure, and the lower end of the push rod (2) is provided with an annular limiting groove. The piston (3) is sleeved in the limiting groove. The piston (3) is provided with a sloping surface for contacting the second guide port (8a).

6. The integrated bidirectional switching liquid distribution valve core according to claim 1, characterized in that, The liquid inlet (6) is equipped with a filter screen (16).

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