A valve structure applied to a snow slush machine

Abstract

The utility model relates to a snow slush machine technical field, concretely is a valve structure for snow slush machine, through setting up air pressure switch valve, valve is under normal condition, the deformation part of elastic switch spare closes the air hole, to break the intercommunication of air hole and feed inlet, can effectively prevent the liquid through the feed inlet overflow situation to occur in the stirring process of snow slush machine, avoid the waste of raw material and the pollution of snow slush machine external structure, when needing to output liquid, the discharge port opens, and the external air pressure is greater than the snow slush machine internal air pressure, under the action of air pressure, the deformation part occurs elastic deformation, makes the air hole intercommunication with feed inlet, and the external air enters the snow slush machine inside, and the air pressure of snow slush machine inside and outside is balanced to the liquid can more smoothly flow out, greatly improves the liquid output efficiency and user use experience, strengthens the practicality and reliability of snow slush machine.

Description

Technical Field

[0001] This utility model relates to the field of slush machine technology, specifically a valve structure applied to slush machines. Background Technology

[0002] As people's living standards continue to improve, slush machines, which can produce smooth and refreshing slush drinks, are increasingly widely used in homes, restaurants, and various leisure venues. People can easily transform various fruits and beverage ingredients into delicious slush with the help of slush machines, satisfying different consumers' demands for unique cold drinks and adding much fun and convenience to daily life.

[0003] During the mixing process of existing slush machines, liquid tends to accumulate towards the discharge port. Due to the lack of effective measures to prevent overflow, liquid easily spills out of the inlet, resulting in not only a waste of raw materials but also contamination of the external structure of the slush machine, increasing cleaning costs and workload. Furthermore, the imbalance between the internal and external air pressures during liquid output causes the liquid to flow out unevenly, affecting the output efficiency and user experience, and reducing the overall practicality of the slush machine.

[0004] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0005] To address the above problems, this utility model proposes a valve structure for use in slush machines, and the technical solution adopted is as follows:

[0006] A valve structure for a slush machine includes a pneumatic switch valve. The pneumatic switch valve includes a valve body housing disposed above the feed inlet, a support plate located inside the valve body housing, and an elastic switch element mounted on the support plate. The support plate has a vent hole communicating with the feed inlet. The elastic switch element includes a deformable portion located on the side of the support plate near the feed inlet. Under normal conditions, the deformable portion closes the vent hole to block the communication between the vent hole and the feed inlet. When a negative pressure is formed at the feed inlet, the deformable portion undergoes elastic deformation to allow the vent hole to communicate with the feed inlet.

[0007] Furthermore, the pneumatic switch valve includes a valve body cover disposed above the valve body housing, the valve body cover having an air inlet hole, the air inlet hole communicating with the outside through the air inlet hole.

[0008] Furthermore, the elastic switch includes a limiting part located on the side of the support plate away from the deformable part and used to restrict the elastic switch from moving in the vertical direction, the limiting part being frustum-shaped.

[0009] Furthermore, the ventilation holes are provided in multiples, and several ventilation holes are arranged at circumferential intervals along the central axis of the elastic switch.

[0010] Furthermore, the deformable part is coaxially arranged with the support plate.

[0011] Furthermore, a support and limiting mechanism is provided between the valve body cover and the valve body housing, and the valve body cover is detachably connected to the valve body housing through the support and limiting mechanism.

[0012] Furthermore, the support limiting mechanism includes a support end face located on the side of the valve body cover away from the air inlet and a support rib located on the inner wall of the valve body housing. The support rib abuts against the support end face so that the valve body housing restricts the axial installation position of the valve body cover.

[0013] Furthermore, the support limiting mechanism includes a limiting groove located on the side of the valve body cover away from the air inlet and a limiting rib located on the inner sidewall of the valve body housing. The limiting rib is inserted into the limiting groove so that the valve body housing restricts the radial installation position of the valve body cover.

[0014] Furthermore, the supporting rib includes a first supporting rib and a second supporting rib symmetrically arranged with respect to the first supporting rib, and the limiting rib includes a first limiting rib and a second limiting rib symmetrically arranged with respect to the first limiting rib.

[0015] Furthermore, the cross-section of the limiting groove is in the shape of an inverted "Y".

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention features a pneumatic switch valve. Under normal conditions, the deformable part of the elastic switch element closes the vent, preventing the vent from connecting to the feed inlet. This effectively prevents liquid from overflowing through the feed inlet during the slush machine's mixing process, avoiding waste of raw materials and contamination of the machine's external structure. When liquid needs to be discharged, the discharge port opens. The external air pressure is greater than the internal air pressure of the slush machine. Under this pressure, the deformable part elastically deforms, connecting the vent to the feed inlet. External air enters the slush machine, balancing the internal and external air pressures, allowing the liquid to flow out more smoothly. This significantly improves the liquid discharge efficiency and user experience, enhancing the practicality and reliability of the slush machine.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the slush machine of this utility model;

[0020] Figure 2 This is the second structural schematic diagram of the slush machine of this utility model;

[0021] Figure 3 for Figure 2 Cross-sectional view along line CC;

[0022] Figure 4 for Figure 3 An enlarged view of section B marked thereon;

[0023] Figure 5 This is an exploded view of the slush machine of this utility model;

[0024] Figure 6 This is a schematic diagram of the valve body housing of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the elastic switch element of this utility model;

[0026] Figure 8 This is a schematic diagram of the valve body cover of this utility model. Detailed Implementation

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1 to 8 The valve structure shown is applied to a slush machine and includes a pneumatic switch valve 1. The pneumatic switch valve 1 includes a valve body housing 2 disposed above the feed inlet, a support plate 3 located inside the valve body housing 2, and an elastic switch element 4 mounted on the support plate 3. The support plate 3 is provided with a vent hole 31 communicating with the feed inlet. The elastic switch element 4 includes a deformation part 41 located on the side of the support plate 3 near the feed inlet. Under normal conditions, the deformation part 41 closes the vent hole 31 to block the communication between the vent hole 31 and the feed inlet. When a negative pressure is formed at the feed inlet, the deformation part 41 undergoes elastic deformation to allow the vent hole 31 to communicate with the feed inlet.

[0029] This invention features a pneumatic switch valve. Under normal conditions, the deformable part of the elastic switch element closes the vent, preventing the vent from connecting to the feed inlet. This effectively prevents liquid from overflowing through the feed inlet during the slush machine's mixing process, avoiding waste of raw materials and contamination of the machine's external structure. When liquid needs to be discharged, the discharge port opens. The external air pressure is greater than the internal air pressure of the slush machine. Under this pressure, the deformable part elastically deforms, connecting the vent to the feed inlet. External air enters the slush machine, balancing the internal and external air pressures, allowing the liquid to flow out more smoothly. This significantly improves the liquid discharge efficiency and user experience, enhancing the practicality and reliability of the slush machine.

[0030] Specifically, the feed inlet is connected to the mixing chamber inside the slush machine. During the mixing process, the internal air pressure and the external air pressure in the mixing chamber are kept consistent. At this time, the deformation part 41 does not undergo elastic deformation. Under normal conditions, the deformation part 41 closes the vent 31 so that the liquid cannot overflow through the vent 31. When the mixing is finished, the user outputs the liquid through the discharge port. When the discharge port is opened, the liquid in the mixing chamber flows outward, which relatively increases the internal volume of the mixing chamber. Since the mixing chamber is a relatively closed cavity with a fixed amount of air inside, the outflow of liquid reduces the total amount of matter inside the cavity, resulting in a decrease in the internal air pressure. At this time, the external air pressure is greater than the internal air pressure. Under the action of the air pressure difference, the deformation part 41 undergoes elastic deformation. The outer edge of the deformation part 41 moves towards the feed inlet, thereby opening the vent 31. Air can enter the mixing chamber through the vent 31 and the feed inlet in sequence, achieving the effect of balancing the internal air pressure of the mixing chamber.

[0031] Furthermore, the flexible switch element 4 is integrally molded, which eliminates any splicing or connecting parts, resulting in a more stable overall structure that can withstand frequent deformation and long-term operation, making it less prone to damage or loosening and effectively extending its service life. Secondly, due to its integral molding, there are no gaps or micro-gaps between the various parts of the flexible switch element 4, forming a continuous sealing surface that effectively prevents liquid or gas leakage from the connection points, ensuring a good sealing effect. Finally, when subjected to air pressure, the integrally molded flexible switch element 4 can quickly and uniformly undergo elastic deformation, rapidly responding to changes in air pressure and promptly opening or closing the vent 31, improving the valve's working efficiency and sensitivity.

[0032] Optionally, in some embodiments, the resilient switch 4 is made of food-grade rubber, which has high elasticity, good flexibility and wear resistance; secondly, the rubber has a low elastic modulus, which allows it to undergo large deformation under small external forces and has excellent resilience.

[0033] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the elastic switch 4 is made of food-grade silicone. Silicone has excellent elasticity and can quickly undergo elastic deformation under different air pressure conditions. After deformation, it can quickly return to its original shape, ensuring that the opening and closing of the vent is sensitive. Secondly, silicone also has good high and low temperature resistance, which can adapt to the working requirements of the slush machine under different ambient temperatures.

[0034] like Figures 1 to 8 The pneumatic switch valve 1 shown includes a valve body cover 5 disposed above the valve body housing 2. The valve body cover 5 is provided with an air inlet 51, and the vent 31 communicates with the outside through the air inlet 51.

[0035] Furthermore, the air inlet 51 allows the vent 31 to be directly connected to the outside atmosphere. When the outlet is opened, outside air can quickly enter the valve body through the air inlet 51, promptly replenishing the negative pressure formed inside the slush machine due to the liquid outflow, so that the internal and external air pressures can be quickly balanced, ensuring that the liquid flows out smoothly.

[0036] Furthermore, the valve body cover 5 provides an additional protective barrier for the resilient switch 4, preventing external impurities from entering the valve body housing 2, avoiding contamination or damage to the resilient switch 4, and effectively extending the service life of the resilient switch 4.

[0037] Furthermore, the air inlet 51 is located on the valve body cover 5, so that the external air has a clear path when entering the valve body, the airflow is smoother, the airflow turbulence is reduced, the impact of the airflow on the elastic switch 4 is reduced, and the stability of valve operation is improved.

[0038] Furthermore, there are multiple air inlets 51, which are spaced apart on the surface of the valve body cover 5. Multiple air inlets 51 can significantly increase the channel area for external air to enter the valve body, allowing air to flow in quickly and smoothly, replenishing the negative pressure inside the slush machine caused by liquid outflow, and improving the speed and efficiency of air pressure balance. Secondly, the spaced arrangement of multiple air inlets 51 allows external air to enter the valve body evenly from different directions, which helps to reduce air pressure fluctuations and make the air pressure inside the valve body more stable, thereby improving the reliability and stability of valve operation.

[0039] like Figures 1 to 8 The elastic switch 4 shown includes a limiting part 42 located on the side of the support plate 3 away from the deformable part 41 and used to limit the movement of the elastic switch 4 in the vertical direction. The limiting part 42 is arranged in the shape of a frustum.

[0040] Furthermore, the frustum-shaped limiting part 42 can effectively restrict the movement of the elastic switch 4 in the vertical direction. During the operation of the slush machine, changes in air pressure will cause the deformation part 41 to undergo elastic deformation and displacement. If there is no effective limiting measure, the elastic switch 4 may move excessively in the vertical direction, resulting in inaccurate control of the opening and closing of the vent 31, or even causing the elastic switch 4 to detach from the support plate 3, affecting the normal operation of the air pressure switch valve.

[0041] Furthermore, the frustum-shaped structure can evenly distribute the force to the surroundings when subjected to pressure. When air pressure acts on the elastic switch 4, the pressure on the limiting part 42 will be distributed to the support plate 3 along the inclined surface of the frustum, avoiding local stress concentration. This helps to reduce the risk of damage to the elastic switch 4 and the support plate 3 due to uneven force, and further improves the stability and reliability of the structure.

[0042] Furthermore, the frustum-shaped limiting part 42 has a relatively large contact area with components such as the support plate 3, and the contact method is relatively smooth. During the deformation process of the elastic switch 4, it helps to reduce the friction and wear between the limiting part 42 and the support plate 3. Compared with the limiting structure with sharp or irregular shapes, the frustum-shaped limiting part 42 can bear the friction force more evenly, reducing the damage and aging speed of components caused by friction, thereby extending the service life of the elastic switch 4.

[0043] like Figures 1 to 8 The ventilation holes 31 shown are provided in multiple ways, and several ventilation holes 31 are arranged at intervals along the central axis of the elastic switch 4.

[0044] Furthermore, the simultaneous intake of air through multiple vents 31 increases the ventilation area, allowing external air to enter the slush machine more quickly, thus balancing the pressure difference between the inside and outside of the slush machine and improving discharge efficiency.

[0045] Furthermore, during the use of the slush machine, dust, impurities in the air, and fine particles in the slush may cause the vent 31 to become clogged. The setting of multiple vents 31 helps to reduce the risk of the entire air pressure regulation function being affected by the blockage of a single vent 31. Even if some vents 31 are blocked, other vents 31 can still allow air to enter normally, ensuring the basic function of the air pressure regulation system and improving the reliability and durability of the equipment.

[0046] Furthermore, multiple vent holes 31 are evenly distributed around the elastic switch 4, which makes the force on the elastic switch 4 more balanced, helps to reduce local stress concentration caused by air pressure, makes the elastic switch 4 more stable during operation, and extends the service life of the elastic switch 4 and the entire pneumatic switch valve.

[0047] like Figures 1 to 8 The deformable part 41 shown is coaxially arranged with the support plate 3;

[0048] Furthermore, the coaxial arrangement ensures that the deformation part 41 is subjected to uniform force when subjected to air pressure. When the air pressure inside the slush machine changes, since the deformation part 41 is coaxial with the support plate 3, the air pressure will be applied evenly to each part of the deformation part 41, so that the deformation part 41 can perform elastic deformation as required.

[0049] Furthermore, the coaxial arrangement avoids unnecessary shaking or tilting of the deformation part 41 due to eccentric force. During the operation of the slush machine, if the deformation part 41 is not coaxial with the support plate 3, the air pressure may cause the deformation part 41 to generate lateral force, resulting in friction or collision between the deformation part 41 and surrounding components. This not only affects the accuracy of air pressure regulation but may also damage related components.

[0050] Furthermore, the coaxial arrangement makes the deformable part 41 and the support plate 3 more compact in structure, which helps to save space.

[0051] like Figures 1 to 8 A support and limiting mechanism is provided between the valve body cover 5 and the valve body housing 2 shown, and the valve body cover 5 is detachably connected to the valve body housing 2 through the support and limiting mechanism;

[0052] Furthermore, the supporting limiting mechanism provides a clear positioning and installation method for the connection between the valve body cover 5 and the valve body housing 2, making the assembly process simpler and faster. During the production stage, users can quickly and accurately install the two together, which helps to improve production efficiency. During the use of the equipment, if it is necessary to inspect or replace the internal parts, or clean the inside of the valve body, the detachable design allows users to easily remove the valve body cover 5 without complicated operations and tools, which helps to reduce the difficulty and time cost of maintenance.

[0053] Furthermore, the support and limiting mechanism can effectively limit the relative displacement between the valve body cover 5 and the valve body housing 2, ensuring that the two remain tightly connected during the operation of the slush machine. This is beneficial to enhancing the reliability of the connection and helps to ensure the structural and operational stability of the pneumatic switch valve.

[0054] Optionally, in some embodiments, the supporting limiting mechanism includes a buckle located on the valve body cover 5 and a slot located on the valve body housing 2. The buckle has a certain elastic protrusion structure, which has good elasticity and strength. During installation, the user aligns the valve body cover 5 with the valve body housing 2 and presses it down. The buckle will undergo elastic deformation under pressure and smoothly engage in the slot. When the buckle is fully engaged in the slot, it will return to its original shape, achieving a tight connection. During disassembly, only a certain external force needs to be applied to deform the buckle again and remove it from the slot.

[0055] Optionally, in some embodiments, the support limiting mechanism includes a first thread located on the valve body cover 5 and a second thread located on the valve body housing 2. The first thread and the second thread are threadedly connected so that the valve body cover 5 and the valve body housing 2 are detachably connected. Further, the support limiting mechanism also includes an annular boss located at the end of the first thread and a limiting step located at the end of the second thread. When the valve body cover 5 and the valve body housing 2 are threadedly connected, the annular boss and the limiting step abut against each other, thereby limiting the installation position of the valve body cover 5 in the valve body housing 2.

[0056] like Figures 1 to 8The support limiting mechanism shown includes a support end face 61 located on the side of the valve body cover 5 away from the air inlet 51, and a support rib 62 located on the inner wall of the valve body housing 2. The support rib 62 abuts against the support end face 61 so that the valve body housing 2 restricts the axial installation position of the valve body cover 5.

[0057] Furthermore, the cooperation between the support end face 61 and the support rib 62 can provide a precise axial installation position for the valve body cover 5 within the valve body housing 2. During installation, the user only needs to place the valve body cover 5 into the valve body housing 2. When the support end face 61 abuts against the support rib 62, it indicates that the valve body cover 5 has reached the correct axial installation position.

[0058] Furthermore, a stable installation position can reduce the relative movement and friction between the valve body cover 5 and the valve body housing 2. When the support end face 61 abuts against the support rib 62, the displacement of the valve body cover 5 in the axial direction is restricted, which helps to avoid unnecessary friction and collision between the valve body cover 5 and the inner wall of the valve body housing 2, and helps to reduce the wear of the components.

[0059] Furthermore, the support end face 61 is integrally formed on one side of the valve body cover 5, and the support rib 62 is integrally formed on the inner side wall of the valve body shell 2. The integral forming setting helps to save the number of parts and improves assembly efficiency.

[0060] like Figures 1 to 8 The support limiting mechanism shown includes a limiting groove 63 located on the side of the valve body cover 5 away from the air inlet 51, and a limiting rib 64 located on the inner side wall of the valve body housing 2. The limiting rib 64 is inserted into the limiting groove 63 so that the valve body housing 2 restricts the radial installation position of the valve body cover 5.

[0061] Furthermore, the insertion and engagement of the limiting groove 63 and the limiting rib 64 provides precise radial positioning of the valve body cover 5 within the valve body housing 2. During installation, the user only needs to align the limiting rib 64 with the limiting groove 63 and insert it to ensure that the valve body cover 5 is accurately installed in the predetermined radial position, which helps to avoid component interference problems caused by radial position deviation during installation.

[0062] Furthermore, the limiting rib 64 and the limiting groove 63 play a guiding role during installation. When the valve body cover 5 approaches the valve body housing 2, the limiting rib 64 can guide the valve body cover 5 to correctly enter the installation position, making the installation process smoother.

[0063] like Figures 1 to 8The support rib 62 shown includes a first support rib 621 and a second support rib 622 symmetrically arranged with respect to the first support rib 621. The limiting rib 64 includes a first limiting rib 641 and a second limiting rib 642 symmetrically arranged with respect to the first limiting rib 641.

[0064] Furthermore, the symmetrically arranged support ribs 62 and limiting ribs 64 enable the valve body cover 5 to be subjected to more uniform force during installation and operation. In the axial direction, the first support rib 621 and the second support rib 622 symmetrically abut against the support end face 61, distributing the axial force borne by the valve body cover 5 evenly to both sides. In the radial direction, the first limiting rib 641 and the second limiting rib 642 symmetrically cooperate with the limiting groove 63, uniformly restricting the radial displacement of the valve body cover 5. When vibration or radial impact force is generated during equipment operation, the symmetrical limiting ribs 64 can jointly resist these external forces, keeping the valve body cover 5 balanced in the radial direction and reducing component damage caused by excessive local force.

[0065] Furthermore, the symmetrical structure helps to improve the stability of the entire support and limiting mechanism. Due to the symmetrical distribution of the ribs on both sides, they work together to form a stable support and limiting system, enabling the pneumatic switch valve to maintain good performance in complex working environments and reducing the probability of failure caused by structural instability.

[0066] Furthermore, both the support rib 62 and the limiting rib 64 have rectangular cross-sections, with the limiting rib 64 having a larger cross-section than the support rib 62. The different cross-sectional dimensions of the support rib 62 and the limiting rib 64 reflect their functional differences. The support rib 62 is mainly responsible for axial support, and its smaller cross-section is sufficient to meet the axial support requirements while also avoiding occupying too much volume in a limited space. On the other hand, the limiting rib 64 mainly undertakes the task of radial limiting, and its larger cross-section is to better realize the radial constraint function. This design makes the support and limiting functions more clearly defined, and each rib can fully play its specific role, improving the overall performance of the pneumatic switch valve.

[0067] like Figures 1 to 8 The cross-section of the limiting groove 63 shown is inverted "Y" shape;

[0068] Furthermore, the inverted "Y"-shaped limiting groove 63 has a self-guiding characteristic during installation. When the limiting rib 64 is inserted into the limiting groove 63, the opening part of the inverted "Y" can play a guiding role, making it easier for the limiting rib 64 to be aligned and enter the limiting groove 63.

[0069] Furthermore, the inverted "Y" shaped structure can limit the limiting rib 64 from multiple angles. After the limiting rib 64 is inserted, it fits tightly with the two side walls of the inverted "Y", providing more comprehensive constraint in the radial direction. The multi-angle limiting method can effectively prevent the valve body cover 5 from shaking or rotating in the radial direction, so that the valve body cover 5 maintains a stable installation position in the valve body housing 2.

[0070] Furthermore, when the limiting rib 64 is subjected to radial force from the valve body cover 5, the inverted "Y"-shaped limiting groove 63 can evenly distribute these forces to multiple directions. Compared with a single plane or a simple-shaped limiting groove, the inverted "Y" structure can distribute and transmit the force through the side walls and bottom, avoiding stress concentration at a certain point or in a certain area. This helps to reduce the local stress of the limiting groove 63 and the limiting rib 64, reducing the risk of component damage and fatigue failure caused by stress concentration, and extending the service life of the components.

[0071] The implementation method of Example 1 is as follows:

[0072] A valve structure for a slush machine includes a pneumatic switch valve 1. The pneumatic switch valve 1 includes a valve body housing 2 disposed above the feed inlet, a support plate 3 located inside the valve body housing 2, and an elastic switch element 4 mounted on the support plate 3. The support plate 3 is provided with a vent hole 31 communicating with the feed inlet. The elastic switch element 4 includes a deformation part 41 located on the side of the support plate 3 near the feed inlet. Under normal conditions, the deformation part 41 closes the vent hole 31 to block the communication between the vent hole 31 and the feed inlet. When a negative pressure is formed at the feed inlet, the deformation part 41 undergoes elastic deformation to allow the vent hole 31 to communicate with the feed inlet.

[0073] This invention features a pneumatic switch valve. Under normal conditions, the deformable part of the elastic switch element closes the vent, preventing the vent from connecting to the feed inlet. This effectively prevents liquid from overflowing through the feed inlet during the slush machine's mixing process, avoiding waste of raw materials and contamination of the machine's external structure. When liquid needs to be discharged, the discharge port opens. The external air pressure is greater than the internal air pressure of the slush machine. Under this pressure, the deformable part elastically deforms, connecting the vent to the feed inlet. External air enters the slush machine, balancing the internal and external air pressures, allowing the liquid to flow out more smoothly. This significantly improves the liquid discharge efficiency and user experience, enhancing the practicality and reliability of the slush machine.

[0074] The implementation method of Example 2 is as follows:

[0075] Based on Example 1, Example 2 also has the following implementation method: The pneumatic switch valve 1 includes a valve body cover 5 disposed above the valve body housing 2. The valve body cover 5 is provided with an air inlet 51, and the vent 31 communicates with the outside through the air inlet 51.

[0076] The implementation method of Example 3 is as follows:

[0077] Based on Embodiment 1, Embodiment 3 also has the following implementation method: The elastic switch 4 includes a limiting part 42 located on the side of the support plate 3 away from the deformation part 41 and used to limit the movement of the elastic switch 4 in the vertical direction. The limiting part 42 is arranged in a frustum shape.

[0078] The implementation method of Example 4 is as follows:

[0079] Based on Example 1, Example 4 also has the following implementation method: multiple vent holes 31 are provided, and several vent holes 31 are arranged at intervals along the central axis of the elastic switch 4.

[0080] The implementation method of Example 5 is as follows:

[0081] Based on Example 1, Example 5 also has the following implementation method: the deformable part 41 is coaxially arranged with the support plate 3.

[0082] The implementation method of Example 6 is as follows:

[0083] Based on Example 2, Example 6 also has the following implementation method: a support limiting mechanism is provided between the valve body cover 5 and the valve body shell 2, and the valve body cover 5 is detachably connected to the valve body shell 2 through the support limiting mechanism.

[0084] The implementation method of Example 7 is as follows:

[0085] Based on Example 6, Example 7 also has the following implementation method: The support limiting mechanism includes a support end face 61 located on the side of the valve body cover 5 away from the air inlet 51, and a support rib 62 located on the inner side wall of the valve body housing 2. The support rib 62 abuts against the support end face 61 so that the valve body housing 2 restricts the axial installation position of the valve body cover 5.

[0086] The implementation method of Example 8 is as follows:

[0087] Based on Example 7, Example 8 also has the following implementation method: The support limiting mechanism includes a limiting groove 63 located on the side of the valve body cover 5 away from the air inlet 51, and a limiting rib 64 located on the inner side wall of the valve body housing 2. The limiting rib 64 and the limiting groove 63 are inserted and cooperated to restrict the radial installation position of the valve body cover 5 by the valve body housing 2.

[0088] The implementation method of Example 9 is as follows:

[0089] Based on Example 8, Example 9 further includes the following implementation: the support rib 62 includes a first support rib 621 and a second support rib 622 symmetrically arranged with respect to the first support rib 621, and the limiting rib 64 includes a first limiting rib 641 and a second limiting rib 642 symmetrically arranged with respect to the first limiting rib 641.

[0090] The implementation method of Example 10 is as follows:

[0091] Based on Example 8, Example 10 also has the following implementation method: the cross-section of the limiting groove 63 is in the shape of an inverted "Y".

[0092] The implementation method of Example 11 is as follows:

[0093] Based on Example 6, Example 11 further includes the following implementation method: The supporting and limiting mechanism includes a buckle located on the valve body cover 5 and a slot located on the valve body housing 2. The buckle has a certain elastic protrusion structure, which has good elasticity and strength. During installation, the user aligns the valve body cover 5 with the valve body housing 2 and presses it down. The buckle will undergo elastic deformation under pressure and smoothly enter the slot. When the buckle is fully inserted into the slot, it will return to its original shape, achieving a tight connection. During disassembly, only a certain external force needs to be applied to deform the buckle again and remove it from the slot.

[0094] The implementation method of Example Twelve is as follows:

[0095] Based on Example 6, Example 12 further includes the following implementation: The support and limiting mechanism includes a first thread located on the valve body cover 5 and a second thread located on the valve body housing 2. The first thread and the second thread are threadedly connected so that the valve body cover 5 and the valve body housing 2 can be detachably connected. Furthermore, the support and limiting mechanism also includes an annular boss located at the end of the first thread and a limiting step located at the end of the second thread. When the valve body cover 5 and the valve body housing 2 are threadedly connected, the annular boss and the limiting step abut against each other, thereby limiting the installation position of the valve body cover 5 within the valve body housing 2.

[0096] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A valve structure for use in a slush machine, comprising a pneumatic switching valve (1), characterized in that: The pneumatic switch valve (1) includes a valve body housing (2) disposed above the feed inlet, a support plate (3) located inside the valve body housing (2), and an elastic switch element (4) mounted on the support plate (3). The support plate (3) is provided with a vent hole (31) communicating with the feed inlet. The elastic switch element (4) includes a deformation part (41) located on the side of the support plate (3) near the feed inlet. Under normal conditions, the deformation part (41) closes the vent hole (31) to block the vent hole (31) from communicating with the feed inlet. When a negative pressure is formed at the feed inlet, the deformation part (41) undergoes elastic deformation to allow the vent hole (31) to communicate with the feed inlet.

2. The valve structure applied to a slush machine according to claim 1, characterized in that: The pneumatic switch valve (1) includes a valve body cover (5) disposed above the valve body housing (2), and the valve body cover (5) is provided with an air inlet (51), and the vent (31) communicates with the outside through the air inlet (51).

3. The valve structure applied to a slush machine according to claim 1, characterized in that: The elastic switch (4) includes a limiting part (42) located on the side of the support plate (3) away from the deformable part (41) and used to limit the movement of the elastic switch (4) in the vertical direction. The limiting part (42) is arranged in the shape of a frustum.

4. The valve structure applied to a slush machine according to claim 1, characterized in that: The ventilation holes (31) are provided in multiple ways, and several ventilation holes (31) are arranged at intervals along the central axis of the elastic switch (4).

5. The valve structure applied to a slush machine according to claim 1, characterized in that: The deformable part (41) is coaxially arranged with the support plate (3).

6. A valve structure for use in a slush machine according to claim 2, characterized in that: A support limiting mechanism is provided between the valve body cover (5) and the valve body housing (2), and the valve body cover (5) is detachably connected to the valve body housing (2) through the support limiting mechanism.

7. A valve structure for use in a slush machine according to claim 6, characterized in that: The support limiting mechanism includes a support end face (61) located on the side of the valve body cover (5) away from the air inlet (51) and a support rib (62) located on the inner side wall of the valve body housing (2). The support rib (62) abuts against the support end face (61) so that the valve body housing (2) restricts the axial installation position of the valve body cover (5).

8. A valve structure for use in a slush machine according to claim 7, characterized in that: The support limiting mechanism includes a limiting groove (63) located on the side of the valve body cover (5) away from the air inlet (51) and a limiting rib (64) located on the inner side wall of the valve body housing (2). The limiting rib (64) is inserted into the limiting groove (63) so that the valve body housing (2) restricts the radial installation position of the valve body cover (5).

9. A valve structure for use in a slush machine according to claim 8, characterized in that: The support rib (62) includes a first support rib (621) and a second support rib (622) symmetrically arranged with respect to the first support rib (621). The limiting rib (64) includes a first limiting rib (641) and a second limiting rib (642) symmetrically arranged with respect to the first limiting rib (641).

10. A valve structure for use in a slush machine according to claim 8, characterized in that: The cross-section of the limiting groove (63) is inverted "Y" shape.

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