Cam ejector rod driving valve element structure

Abstract

The utility model discloses a cam ejector rod driving valve core structure, which comprises a valve core main body, a cam ejector rod and a cam ejector rod, the driving rods are in one-to-one correspondence with the limiting holes; the driving rotating shaft comprises a driving end and an abutting end, the abutting end is provided with a protruding block, and a transition face is arranged between the protruding block and the abutting end; a reset member; the driving part is in driving connection with the driving end, one end of the driving rod abuts against the abutting end, and when the rotating shaft is driven to rotate, the end of the driving rod axially moves along the corresponding limiting hole under the action of abutting force of the protruding block and is used for closing or communicating the liquid channel opposite to the driving rod; only one driving rod abuts against the protruding block at the same time, the driving rod abutting against the protruding block is communicated with the liquid channel corresponding to the driving rod, complex installation of the motor and related circuit assemblies of the motor is avoided, occupied space is remarkably reduced, the mechanical structure is simplified, operation can be easily carried out, and cost is reduced. And the maintenance cost and the operation difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a valve core structure driven by a cam push rod. Background Art

[0002] In the modern beverage preparation and food processing industries, the compactness, efficiency, and ease of maintenance of equipment have become important indicators for measuring equipment performance. Among them, as the core component for controlling the flow of fluids (including but not limited to water, fruit juice, etc.), the design optimization of the valve core structure is directly related to the rationality of the overall layout of the equipment, the convenience of operation, and the improvement of space utilization.

[0003] Traditional valve core designs are mainly divided into two categories: the motor-driven valve plate rotation structure and the screw-driven valve core linear movement structure. The motor-driven valve plate rotation structure (as shown in CN203378497U) performs well in some applications with its precise flow control and flow direction adjustment capabilities. However, the space occupation problem brought by its rotation mechanism cannot be ignored. Especially in scenarios where the valve core needs to be integrated with other functional components such as mixing blades in the same space, the motor-driven rotating valve plate design is often limited by the need for a large installation space, which not only restricts the miniaturization development trend of the equipment but also affects the multi-functional integration ability of the equipment, making it difficult to meet the dual requirements of the market for equipment compactness and multi-functionality. The screw-driven valve core linear movement structure (as described in CN215687160 and CN219888755U) realizes the opening and closing of the valve core through linear movement, which reduces the space occupation to a certain extent compared with the rotation structure. However, this design also faces challenges. The direct drive mode of the screw means that the movement distance of the valve core strictly corresponds to the stroke of the screw. To achieve multi-channel control, the screw often needs to be designed with a long movement stroke, which not only increases the design complexity but also may cause the valve control system to be fixedly installed only on the side of the mixing cup, restricting the design flexibility and possibly having an adverse impact on the overall aesthetics and operation convenience of the equipment.

[0004] In summary, while the existing valve core designs meet the basic functional requirements, they also expose problems such as large space occupation, complex design, and inconvenient maintenance. Summary of the Utility Model

[0005] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a valve core structure driven by a cam push rod, which reduces the structural complexity and solves the problems of quick disassembly and overlong stroke.

[0006] The technical solution adopted by the utility model to solve its problems is:

[0007] A cam push-rod driven valve core structure for controlling the closing or connection of a liquid passage, comprising: a valve core body, on which at least two limit holes are provided; at least two drive rods, which correspond to the limit holes one by one; a drive rotating shaft, which includes a drive end and an abutting end, a convex block is provided on the abutting end, and a transition surface is provided between the convex block and the abutting end; a reset member for providing a force for the drive rod to abut against the abutting end; a drive member, which is drivingly connected to the drive end, one end of the drive rod abuts against the abutting end, when the drive rotating shaft rotates, one end of the drive rod is subjected to the abutting force of the convex block and moves axially along its corresponding limit hole for closing or connecting the liquid passage opposite to the drive rod; wherein, at the same time, only one of the drive rods abuts against the convex block, and the drive rod abutting against the convex block connects its corresponding liquid passage.

[0008] By adopting the above scheme, the cam push-rod driven valve core structure realizes the opening and closing of the valve core by the direct action of the drive rod and the convex block. This design avoids the complex installation of the motor and its related circuit components, thus significantly reducing the space occupation. At the same time, due to the more compact direct action between the drive rod and the convex block, the whole valve core structure is more suitable for integration into miniaturized and multifunctional devices; the cam push-rod driven valve core structure rotates the drive rotating shaft and uses the circular motion of the convex block to drive each drive rod to move axially along its corresponding limit hole. This design not only simplifies the mechanical structure, but also realizes the independent control of multiple drive rods through the ingenious design of the convex block, without the need for a long linear stroke like screw drive. Therefore, it can effectively control multiple channels without increasing the design complexity; from the perspective of maintenance and replacement, the design of the cam push-rod driven valve core structure is relatively simple, and the connection and disassembly between components are more convenient. Especially the action relationship between the drive rod and the convex block is clear. Once the valve core needs to be maintained or replaced, it can be easily operated, reducing the maintenance cost and operation difficulty.

[0009] Further, the valve core body includes: a valve core housing, an accommodation groove is formed inside the valve core housing, the limit holes are located in the accommodation groove, and at least two diversion channels are further provided on the valve core housing, and the diversion channels are adjacent to each limit hole; a valve core cover body, which is snap-connected to the valve core housing to cover the accommodation groove, and through holes corresponding to the limit holes one by one are provided on the valve core cover body, and the drive member passes through the through holes and the limit holes at the same time.

[0010] By adopting the above scheme, the accommodation groove formed inside the valve core housing provides a necessary space for the interaction between the drive rod and the convex block. The limit holes are located in the accommodation groove, ensuring the stability and accuracy of the drive rod during axial movement.

[0011] Furthermore, at least a part of the diversion channel extends outward from the spool housing to form a connector, and an O-ring is assembled on the outer wall of the connector.

[0012] By adopting the above scheme, the connector formed by the outward extension of the diversion channel from the spool housing provides an interface for the flow of liquid between the spool structure and an external pipeline or container, significantly improving the sealing performance between the spool structure and the external pipeline or container.

[0013] Furthermore, diversion ribs are provided on the outer side of the spool body. The diversion ribs are located between every two of the limiting holes and are used to enclose an independent flow space between each limiting hole and each diversion channel.

[0014] By adopting the above scheme, the presence of the diversion ribs effectively isolates the fluid channels between different limiting holes and diversion channels, ensuring that the liquid flow in each channel is independent and does not interfere with each other, significantly improving the accuracy and flexibility of fluid control and solving the problem of possible fluid cross-flow or interference in traditional designs.

[0015] Furthermore, a sliding part for sliding along the abutting end is provided at one end of the driving rod, and a sealing plug for closing the liquid channel is assembled at the other end.

[0016] By adopting the above scheme, it is ensured that the driving rod can move smoothly and accurately along a predetermined path when pushed by the bump, avoiding shaking or deviation, thereby ensuring the accuracy of fluid control.

[0017] Furthermore, a chamfer is provided at the edge of the sliding part for sliding along the transition surface.

[0018] By adopting the above scheme, the driving force required for the rotation of the driving shaft can be reduced, and the service life of the driving rod and the slide rail can be effectively extended, reducing performance degradation or failures caused by wear.

[0019] Furthermore, the sealing plug includes: a sealing ring; a sealing ring limiting member having an assembly hole. An annular inner groove is provided on the outer side of the sealing ring limiting member. The sealing ring is installed in the annular inner groove, and at least a part of the sealing ring protrudes from the annular inner groove; the sealing ring limiting member is detachably connected to the other end of the driving rod.

[0020] By adopting the above solution, the seal ring limiting member has an assembly hole for installing the seal ring. The annular inner groove provided on its outer side provides a stable installation position for the seal ring, preventing the seal ring from shifting or falling off during use; the design of the annular inner groove enables the seal ring to protrude at least partially outside the groove after installation. In this way, when the sealing plug is pushed into the liquid passage opening, the protruding part of the seal ring can contact the inner wall of the passage opening more fully, forming a tighter seal; the seal ring limiting member and the other end of the driving rod are detachably connected, such as by threaded connection, snap connection, etc. This design facilitates the maintenance and replacement of the sealing plug.

[0021] Further, an external thread is provided at the other end of the driving rod, and an internal thread is provided in the assembly hole. The other end of the driving rod is threadedly connected to the assembly hole.

[0022] By adopting the above solution, the maintenance and replacement of the sealing plug become easier and faster. Users can check and replace the seal ring at any time according to needs, thereby extending the service life of the valve core structure and reducing the maintenance cost.

[0023] Further, a filter enclosure is provided on one side of the end of the seal ring limiting member facing the driving rod.

[0024] By adopting the above solution, the main function of the filter enclosure is to block impurities in the fluid from flowing out of the liquid passage.

[0025] Further, a second limiting member is provided in the receiving groove in the valve core housing, and the second limiting member is provided with at least two guiding holes.

[0026] By adopting the above solution, the second limiting member is installed in the receiving groove of the valve core housing. Its main function is to limit the position of the driving rod of the valve core during movement and prevent it from exceeding the predetermined movement range.

[0027] In summary, a cam push rod driven valve core structure provided by the present utility model has the following technical effects:

[0028] 1. By directly acting on the valve core through the driving rod and the convex block to realize the opening and closing of the valve core, the complex installation of the motor and its related circuit components is avoided, thereby significantly reducing the space occupation. This compact design makes the entire valve core structure more suitable for integration into miniaturized and multifunctional devices, meeting the requirements of the modern beverage preparation and food processing industries for the compactness of equipment;

[0029] 2. The cam pushrod drive mechanism rotates to drive the rotating shaft, and uses the circular motion of the cam to drive each drive rod to move axially along its corresponding limiting hole. This design simplifies the mechanical structure and reduces the design complexity. At the same time, the ingenious design of the cam realizes the independent control of multiple drive rods, eliminating the need for a long linear stroke as in the screw drive, thereby improving the design flexibility and efficiency;

[0030] 3. This structure can achieve effective control of multiple channels without increasing design complexity. Each drive rod corresponds to a liquid channel, and the circular motion of the cam contacts each drive rod in turn, thereby realizing the closing or connection of different liquid channels. This design improves the fluid control accuracy and flexibility of the device;

[0031] 4. The design of the cam pushrod driving the valve core structure is relatively simple, and the connection and disassembly between components are relatively convenient. Especially, the action relationship between the drive rod and the cam is clear. Once maintenance or valve core replacement is required, the operation can be carried out relatively easily, reducing the maintenance cost and operation difficulty. This easy maintainability helps to improve the reliability and service life of the device;

[0032] 5. Due to the advantages of this structure in terms of space occupation, design simplification, multi-channel control, and easy maintainability, the overall performance of the device adopting this structure is improved. The characteristics of miniaturization, multi-functionality, and efficient maintenance of the device contribute to improving production efficiency, reducing production costs, and meeting the dual market demands for device compactness and multi-functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the embodiment of the present utility model assembled in a wall breaker;

[0034] Figure 2 is a schematic cross-sectional structural diagram of the valve core of the embodiment of the present utility model inside the wall breaker;

[0035] Figure 3 is a schematic three-dimensional structural diagram of the embodiment of the present utility model;

[0036] Figure 4 is an exploded structural diagram of the embodiment of the present utility model;

[0037] Figure 5 is an exploded structural diagram of the embodiment of the present utility model;

[0038] Figure 6 is a schematic structural diagram of the drive rotating shaft of the embodiment of the present utility model.

[0039] Among them, the meanings of the reference numerals are as follows: 1, wall-breaking machine; 11, liquid channel; 2, valve core body; 21, valve core housing; 211, receiving groove; 212, limiting hole; 213, diversion channel; 214, connector; 215, O-ring; 22, valve core cover body; 221, perforation; 23, shunt rib; 24, valve core sleeve; 3, driving rotating shaft; 31, abutting end; 311, convex block; 32, driving end; 321, assembly groove; 33, transition surface; 4, driving rod; 41, sliding part; 42, sealing plug; 421, sealing ring; 422, sealing ring limiting part; 423, assembly hole; 424, annular inner groove; 425, filtering enclosure; 43, annular groove; 5, driving part; 6, reset part; 7, second limiting part; 71, guiding hole. Detailed implementation manners

[0040] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all of the examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0041] For the convenience of understanding the embodiments of the present invention, the following will take specific embodiments as examples and make further explanatory descriptions in conjunction with the drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0044] The embodiments of the present invention are referred to Figures 1-6As shown, a cam push rod driven valve core structure is disclosed, which is used for a soymilk machine or a wall breaker 1 and can control the closing or connection of at least two liquid channels 11. Specifically, the cam push rod driven valve core structure includes a valve core body 2, at least two drive rods 4, a drive rotating shaft 3, a reset member 6 and a drive member 5. At least two limit holes 212 are provided on the valve core body 2, and the drive rods 4 correspond to the limit holes 212 one by one. The drive rotating shaft 3 includes a drive end 32 and an abutting end 31. A convex block 311 is provided on the abutting end 31, and a transition surface 33 is provided between the convex block 311 and the abutting end 31. The reset member 6 is used to provide a force for the drive rod 4 to abut against the abutting end 31. The drive member 5 is drivingly connected to the drive end 32. One end of the drive rod 4 abuts against the abutting end 31. When the drive rotating shaft 3 rotates, one end of the drive rod 4 is subjected to the abutting force of the convex block 311 and moves axially along its corresponding limit hole 212 to close or connect the liquid channel 11 opposite to the drive rod 4. It should be noted that at any one time, only one drive rod 4 abuts against the convex block 311, and the drive rod 4 abutting against the convex block 311 connects its corresponding liquid channel 11. In this Embodiment 1, two drive rods 4, limit holes 212 and liquid channels 11 are provided. Under the action of the reset member 6, the abutting end 31 of the drive rotating shaft 3 always abuts against one end of the drive rod 4, where the convex block 311 abuts against one drive rod 4, and the other drive rod 4 abuts against the opposite side of the convex block 311 in the abutting end 31. With this setting, the opening and closing of the valve core are realized by the direct action of the drive rod 4 and the convex block 311. This design avoids the complex installation of the motor and its related circuit components, thus significantly reducing the space occupation. At the same time, due to the more compact direct action between the drive rod 4 and the convex block 311, the entire valve core structure is more suitable for integration into miniaturized and multifunctional devices; the cam push rod driven valve core structure drives the drive rotating shaft 3 to rotate, and uses the circular motion of the convex block 311 to drive each drive rod 4 to move axially along its corresponding limit hole 212. This design not only simplifies the mechanical structure, but also realizes the independent control of multiple drive rods 4 through the ingenious design of the convex block 311, without the need for a long linear stroke like screw drive. Therefore, it can realize the effective control of multiple channels without increasing the design complexity; from the perspective of maintenance and replacement, the design of the cam push rod driven valve core structure is relatively simple, and the connection and disassembly between components are more convenient. Especially the action relationship between the drive rod 4 and the convex block 311 is clear. Once the valve core needs to be maintained or replaced, the operation can be carried out relatively easily, reducing the maintenance cost and operation difficulty.

[0045] In a specific embodiment, the valve core body 2 includes a valve core housing 21 and a valve core cover 22. An accommodation groove 211 is formed inside the valve core housing 21, and the limiting hole 212 is located in the accommodation groove 211. At least two diversion channels 213 are provided on the valve core housing 21, and the diversion channels 213 are adjacent to each of the limiting holes 212. The valve core cover 22 is snap-connected to the valve core housing 21 to cover the accommodation groove 211. The valve core cover 22 is provided with through holes 221 corresponding to the limiting holes 212 one by one. The driving member 5 passes through the through holes 221 and the limiting holes 212 at the same time. The accommodation groove 211 formed inside the valve core housing 21 provides a necessary space for the interaction between the driving rod 4 and the convex block 311. The limiting hole 212 is located in the accommodation groove 211, ensuring the stability and accuracy of the driving rod 4 during axial movement. In this Embodiment 1, a valve core sleeve 24 is further provided on the side of the valve core housing 21 away from the valve core cover 22. The valve core sleeve 24 can be used to abut against other side walls inside the wall breaker 1 to form a liquid channel 11, achieving a liquid-sealed flow effect. Optionally, at least a part of the diversion channel 213 extends outward from the valve core housing 21 to form a connection head 214. An O-ring 215 is assembled on the outer wall of the connection head 214. The connection head 214 formed by the extension of the diversion channel 213 outward from the valve core housing 21 provides an interface for the flow of liquid between the valve core structure and an external pipeline or container, significantly improving the sealing performance between the valve core structure and the external pipeline or container.

[0046] In this Embodiment 1, a flow dividing rib 23 is provided on the outer side of the valve core body 2. The flow dividing rib 23 is located between every two of the limiting holes 212 and is used to enclose an independent flow space between each limiting hole 212 and each diversion channel 213. The presence of the flow dividing rib 23 effectively isolates the fluid channels between different limiting holes 212 and diversion channels 213, ensuring that the liquid flow in each channel is independent and does not interfere with each other, significantly improving the accuracy and flexibility of fluid control and solving the problem of fluid cross-flow or interference that may exist in traditional designs.

[0047] In some embodiments, one end of the driving rod 4 is provided with a sliding portion 41 for sliding along the abutting end 31, and the other end is assembled with a sealing plug 42 for closing the liquid channel 11, ensuring that the driving rod 4 can move smoothly and accurately along a predetermined path when pushed by the convex block 311, avoiding shaking or deviation, and thus ensuring the accuracy of fluid control. Preferably, a chamfer is provided at the edge of the sliding portion 41 for sliding along the transition surface 33, which can reduce the driving force required for the rotation of the driving shaft 3, effectively extend the service life of the driving rod 4 and the slide rail, and reduce the performance degradation or failure caused by wear.

[0048] In some embodiments, the driving rotating shaft 3 is generally assembled and connected to the motor. Therefore, a driving connection structure needs to be provided for the two. Specifically, a concave assembly groove 321 is provided on the driving rotating shaft 3, and a flat position is provided in the assembly groove 321. The flat position plays a role in positioning and fixing, facilitating the driving effect after the motor is connected.

[0049] In order to improve the sealing performance between the driving rod 4 and the liquid passage 11 in the closed state, a sealing plug 42 for closing the liquid passage 11 is assembled at the other end of the driving rod 4. The sealing plug 42 includes a sealing ring 421 and a sealing ring limiting member 422. The sealing ring limiting member 422 has an assembly hole 423. An annular inner groove 424 is provided on the outer side of the sealing ring limiting member 422. The sealing ring 421 is installed in the annular inner groove 424, and at least part of the sealing ring 421 protrudes from the annular inner groove 424. The sealing ring limiting member 422 is detachably connected to the other end of the driving rod 4. The sealing plug 42 can achieve closed sealing with the liquid passage 11, improving the sealing performance in the closed state. In this embodiment, an external thread is provided at the other end of the driving rod 4, and an internal thread is provided in the assembly hole 423. The other end of the driving rod 4 is threadedly connected to the assembly hole 423. With this setting, the structure between the driving rod 4 and the assembly hole 423 is simple, has high reliability, and is convenient for disassembly and assembly, which is more conducive to replacing accessories. In Embodiment 1 of this example, an external thread is provided at the other end of the driving rod 4, and an internal thread is provided in the assembly hole 423. The other end of the driving rod 4 is threadedly connected to the assembly hole 423, making the maintenance and replacement of the sealing plug 42 easier and faster. Users can check and replace the sealing ring 421 at any time according to needs, thereby extending the service life of the valve core structure and reducing the maintenance cost.

[0050] In some embodiments, in order to prevent impurities in the fluid from flowing out of the liquid passage 11, optionally, a filter retaining wall 425 is provided on one side of the sealing ring limiting member 422 facing the driving rod 4. This greatly reduces the occurrence of problems such as blockage of the liquid flow path.

[0051] In some embodiments, in order to further improve the movement stability of the driving rod 4, a second limiting member 7 is provided in the receiving groove 211 inside the valve core housing 21. The second limiting member 7 is provided with at least two guiding holes 71. The second limiting member 7 is installed in the receiving groove 211 of the valve core housing 21 to limit the position of the driving rod 4 of the valve core during movement and prevent it from exceeding the predetermined movement range.

[0052] In summary, a cam push rod driven valve core structure provided by the present utility model has the following technical effects:

[0053] 1. By directly using the driving rod 4 to act on the bump 311 to open and close the valve core, the complex installation of the motor and its related circuit components is avoided, thus significantly reducing the space occupation. This compact design makes the entire valve core structure more suitable for integration into miniaturized and multifunctional devices, meeting the requirements of the modern beverage preparation and food processing industries for equipment compactness;

[0054] 2. The cam push rod driving mechanism rotates the driving rotating shaft 3, and uses the circular motion of the bump 311 to drive each driving rod 4 to perform axial movement along its corresponding limiting hole 212. This design simplifies the mechanical structure and reduces the design complexity. At the same time, the ingenious design of the bump 311 realizes the independent control of multiple driving rods 4, without the need for a long linear stroke like screw driving, thus improving the flexibility and efficiency of the design;

[0055] 3. This structure can achieve effective control of multiple channels without increasing the design complexity. Each driving rod 4 corresponds to a liquid channel 11. By the circular motion of the bump 311 contacting each driving rod 4 in turn, the closing or connection of different liquid channels 11 is realized. This design improves the fluid control accuracy and flexibility of the equipment;

[0056] 4. The design of the cam push rod driven valve core structure is relatively simple, and the connection and disassembly between components are relatively convenient. Especially the action relationship between the driving rod 4 and the bump 311 is clear. Once maintenance or replacement of the valve core is required, it can be easily operated, reducing the maintenance cost and operation difficulty. This easy maintainability helps to improve the reliability and service life of the equipment;

[0057] 5. Due to the advantages of this structure in terms of space occupation, design simplification, multi-channel control, and easy maintainability, the overall performance of the equipment adopting this structure is improved. The characteristics of equipment miniaturization, multifunctionality, and high-efficiency maintenance help to improve production efficiency, reduce production costs, and meet the dual requirements of the market for equipment compactness and multifunctionality.

[0058] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present utility model.

Claims

1. A cam push rod driven valve core structure for controlling the closing or connection of a liquid channel (11), characterized in that: include: A valve core body (2), wherein at least two limiting holes (212) are provided on the valve core body (2); At least two driving rods (4), the driving rods (4) corresponding to the limiting holes (212) one by one; A driving shaft (3), the driving shaft (3) comprising a driving end (32) and an abutting end (31), the abutting end (31) being provided with a convex block (311), and a transition surface (33) being provided between the convex block (311) and the abutting end (31); a reset member (6), the reset member (6) being used to provide a force for the driving rod (4) to abut against the abutting end (31); A driving member (5), wherein the driving member (5) is drivingly connected to the driving end (32), one end of the driving rod (4) abuts against the abutting end (31), and when the driving shaft (3) rotates, one end of the driving rod (4) is subjected to the abutting force of the protrusion (311) and moves axially along the corresponding limiting hole (212), so as to close or connect the liquid channel (11) opposite to the driving rod (4); There is only one driving rod (4) in contact with the protrusion (311) at the same time, and the driving rod (4) in contact with the protrusion (311) is connected to the liquid channel (11) corresponding to it.

2. A cam follower driving valve core structure according to claim 1, characterized in that: The valve core body (2) comprises: A valve core housing (21), wherein a receiving groove (211) is formed in the valve core housing (21), the limiting hole (212) is located in the receiving groove (211), and at least two guide channels (213) are also provided on the valve core housing (21), and the guide channel (213) is adjacent to each of the limiting holes (212); A valve core cover body (22), the valve core cover body (22) is snap-fitted with the valve core housing (21) to cover the accommodating groove (211), the valve core cover body (22) is provided with through holes (221) corresponding to the limiting holes (212) one by one, and the driving member (5) is simultaneously penetrated in the through holes (221) and the limiting holes (212).

3. A cam follower driving valve core structure according to claim 2, characterized in that: The flow guide channel (213) at least partially extends outside the valve core housing (21) to form a connecting head (214), and an O-ring (215) is mounted on the outer wall of the connecting head (214).

4. A cam follower driving valve core structure according to claim 2, characterized in that: A flow dividing rib (23) is arranged on the outside of the valve core body (2), and the flow dividing rib (23) is located between every two of the limiting holes (212) and is used to enclose an independent flow space between each limiting hole (212) and each guide channel (213).

5. The cam follower driving valve core structure according to claim 1, characterized in that: One end of the driving rod (4) is provided with a sliding portion (41) for sliding along the abutting end (31), and the other end is equipped with a sealing plug (42) for closing the liquid channel (11).

6. A cam follower driving valve core structure according to claim 5, characterized in that: The edge of the sliding portion (41) is provided with a chamfer so as to slide along the transition surface (33).

7. The cam follower driving valve core structure according to claim 5, characterized in that: The sealing plug (42) comprises: Sealing ring (421); A sealing ring stopper (422), the sealing ring stopper (422) having an assembly hole (423), an annular inner groove (424) being arranged on the outer side of the sealing ring stopper (422), the sealing ring (421) being installed in the annular inner groove (424), and at least a portion of the sealing ring (421) protruding from the annular inner groove (424); The sealing ring stopper (422) is detachably connected to the other end of the driving rod (4).

8. The cam follower driving valve core structure according to claim 7, characterized in that: The other end of the driving rod (4) is provided with an external thread, the assembly hole (423) has an internal thread, and the other end of the driving rod (4) is threadedly connected to the assembly hole (423).

9. The cam follower driving valve core structure according to claim 7, characterized in that: A filtering enclosure (425) is provided on one side of the sealing ring stopper (422) facing one end of the driving rod (4).

10. The cam follower driving valve core structure according to claim 2, characterized in that: A second position-limiting member (7) is arranged in the accommodating groove (211) in the valve core housing (21), and the second position-limiting member (7) is provided with at least two guide holes (71).

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