High-heat-resistance hot water valve for food machinery

Abstract

The invention provides a high-heat-resistance hot water valve for food machinery, which relates to the field of food machinery and comprises a valve mounting frame, an electric control actuator, a lubrication driving box body, a valve stop plunger, an operation protection cover, an operation protection mechanism and a lubrication driving mechanism, the electric control actuator is fixedly connected to the upper end of the valve mounting frame; the valve stopping plunger is connected to the lower end of the interior of the electric control actuator in a sliding mode. The valve connecting pipe is fixedly connected to the lower end of the valve mounting frame; the operation protection covers are slidably connected to the left side and the right side of the upper end of the valve mounting frame correspondingly. The lubricating liquid storage box is fixedly connected to the front end of the interior of the lubricating driving box body. The operation protection mechanism is arranged below the valve mounting frame; the lubrication driving mechanism is arranged in the lubrication driving box body, uniform smearing of lubricating liquid is guaranteed, the service life of the whole valve is prolonged, and the problem that it is difficult to guarantee that lubricating oil is evenly smeared on all parts of a plunger through a traditional lubrication mode is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of food machinery, and particularly relates to a hot water valve for food machinery with high heat resistance. Background Art

[0002] During the operation of food machinery, high-temperature hot water is often required for operations such as cleaning, disinfection, and heating. For example, in a beverage filling production line, high-temperature hot water is needed to sterilize the filling containers and pipelines; in food steaming equipment, high-temperature hot water is the direct heating medium. This requires the valves used to have good heat resistance to ensure stable and reliable operation in high-temperature environments. The core of existing heat-resistant hot water electric control valves is a combination of high-temperature resistant materials + multi-stage sealing + enhanced heat dissipation. In the field of food machinery, 316L stainless steel valve bodies, cemented carbide valve cores, and graphite or metal seals are mainstream, combined with ball valve or piston-type structures and electric drives, which can meet the long-term stable control of hot water at 180 - 450°C.

[0003] The existing publication number is: CN115839431B. The present invention provides a control valve for controlling the output of food additives, which relates to the field of valves and includes a control member. The control member is installed at the bottom of the main body. Each group of support plates is arranged in a shape of an eight. An inner end of each group of support plates is provided with a connection head. The inner end of the connection head is a circular tubular structure. Three circular holes arranged in a ring are provided on the outer side of each connection head, and a spring is installed inside the circular holes. When in use, the control member is conveniently installed. The connection head is embedded inside the outer groove, and then the fixing member is tightened, so that the control member and the connection head are fixed. When water passes through the main body or the main body vibrates after opening and closing, the main body pushes the rubber support plate through the bottom member, and the support plate uses its own elasticity to buffer, improving the buffering effect and enabling the main body to be installed and used more stably, solving the problem that the existing control valve generates vibration during electric control opening and closing or when water passes through and lacks an auxiliary buffering structure.

[0004] However, most existing electric control valves adopt regular manual lubrication. Manual lubrication is limited by the time and frequency of personnel operation, and it is easy to forget to lubricate. It is difficult for traditional lubrication methods to ensure that the lubricating oil is evenly applied to all parts of the plunger. There may be too much lubricating oil in some parts, causing waste and possible pollution to the surrounding environment; while there is insufficient lubricating oil in other parts, affecting the service life of the valve. Summary of the Invention

[0005] In view of this, the present invention provides a hot water valve for high heat-resistant food machinery, which realizes the protection of the connection position, avoids the collision of the connection part of the valve connecting pipe by external sundries, ensures the stability of the valve installation, realizes the protection of the electric control actuator by the opposite movement of the operation protection cover, avoids the accidental touch of the electric control actuator by external personnel during operation, ensures the stable operation of the electric control actuator, realizes the automatic lubrication effect of the valve stop plunger, avoids manual application of lubricating fluid, reduces the labor intensity of workers, ensures the uniform application of lubricating fluid, and prolongs the service life of the entire valve.

[0006] The present invention provides a hot water valve for high heat-resistant food machinery, which specifically includes a valve mounting frame, a protective limit chute, an electric control actuator, a lubrication drive box body, a valve stop plunger, a valve connecting pipe, an operation protection cover, a lubricating fluid storage box, an operation protection mechanism and a lubrication drive mechanism; the protective limit chute is opened at the front end inside the valve mounting frame; the electric control actuator is fixedly connected to the upper end of the valve mounting frame; the lubrication drive box body is fixedly connected to the lower end of the valve mounting frame; the valve stop plunger is slidably connected to the lower end inside the electric control actuator; the valve connecting pipe is fixedly connected to the lower end of the valve mounting frame, and bolt structures are arranged at both the left and right ends of the valve connecting pipe; two groups of operation protection covers are provided, and the two groups of operation protection covers are respectively slidably connected to the left and right sides at the upper end of the valve mounting frame, and the two groups of operation protection covers are respectively arranged on the left and right sides of the electric control actuator; the lubricating fluid storage box is fixedly connected to the front end inside the lubrication drive box body; the operation protection mechanism is arranged below the valve mounting frame; the lubrication drive mechanism is arranged inside the lubrication drive box body.

[0007] Further, the operation protection mechanism includes: connecting protection parts; two groups of connecting protection parts are provided, and both groups of connecting protection parts are cylindrical structures, and the two groups of connecting protection parts are respectively slidably connected to the left and right outer circumferences of the valve connecting pipe.

[0008] Further, the operation protection mechanism further includes: connecting limit sliders, protective drive magnetic blocks and protective drive parts; two groups of connecting limit sliders are provided, and the two groups of connecting limit sliders are respectively fixedly connected to the front ends of the operation protection covers, and the two groups of connecting limit sliders are respectively slidably connected to the inside of the protective limit chute; the protective drive magnetic block is fixedly connected to the right end of the right group of connecting limit sliders; the protective drive part is an electromagnet structure, the protective drive part is connected in series with the circuit of the electric control actuator, and the protective drive part and the protective drive magnetic block have mutually repulsive magnetic poles.

[0009] Further, the operation protection mechanism further includes: a protection guide wheel, a protection drive rope, and a protection return spring; the protection guide wheel is rotatably connected to the lower right side of the valve mounting frame; the protection drive rope is wound around the outer periphery of the protection guide wheel, and both ends of the protection drive rope are fixedly connected to the connection limit slider; the protection return spring is fixedly connected to the left end of the left set of connection limit sliders, and the left end of the protection return spring is fixedly connected to the valve mounting frame.

[0010] Further, the lubrication drive mechanism includes: a lubrication limit guide rail, a lubrication drive slider, a lubrication member, and a lubrication connection pipe; the lubrication limit guide rail is a circular guide rail structure, the lubrication limit guide rail is fixedly connected to the inside of the lubrication drive box body, and the lubrication limit guide rail is arranged on the outer periphery of the valve stop plunger; two sets of lubrication drive sliders are provided, and both sets of lubrication drive sliders are slidably connected to the upper end inside the lubrication limit guide rail; the lubrication member is fixedly connected to the upper end of the lubrication drive slider, and a sponge structure is arranged inside the lubrication member; the lubrication connection pipe is fixedly connected to the front end of the lubrication member, and the front end of the lubrication connection pipe is communicated with the inside of the lubricating fluid storage tank.

[0011] Further, the lubrication drive mechanism further includes: a coating drive shaft, a coating drive member, and a coating drive convex block; the coating drive shaft is a cylindrical structure with an inclined groove formed inside, and the coating drive shaft is rotatably connected to the inside of the lubrication drive box body; the coating drive member is fixedly connected to the outer peripheral front end of the valve stop plunger, and the lower end of the coating drive member is arranged inside the coating drive shaft; the coating drive convex block is fixedly connected to the lower end of the outer periphery of the coating drive member, and the coating drive convex block is slidably connected to the inclined groove inside the coating drive shaft.

[0012] Further, the lubrication drive mechanism further includes: a first drive gear and a second drive gear; the first drive gear is coaxially and fixedly connected to the lower end of the coating drive shaft; the second drive gear is rotatably connected to the inside of the lubrication drive box body, and the second drive gear meshes with the first drive gear.

[0013] Further, the lubrication drive mechanism further includes: a lubrication guide rod, a lubrication drive member, a lubrication drive convex block, and a lubrication connecting rod; the lubrication guide rod is fixedly connected to the inside of the lubrication drive box body; the lubrication drive member is slidably connected to the outside of the lubrication guide rod, and a rectangular groove structure is formed at the middle position of the lubrication drive member; the lubrication drive convex block is fixedly connected to the upper end centrifugal position of the second drive gear, and the lubrication drive convex block is arranged inside the rectangular groove of the lubrication drive member; the lubrication connecting rod is slidably connected to the inside of the lubrication drive member at the rear end, and the rear end of the lubrication connecting rod is fixedly connected to the front set of lubrication drive sliders.

[0014] Beneficial effects Through the setting of the operation protection mechanism of the present invention, the valve connecting pipe is connected to the hot water pipe through bolts. After the connection is completed, the connection protection parts are moved to both sides. The connection protection parts achieve the protection of the connection position, avoiding the collision of the connection part of the valve connecting pipe by external sundries, ensuring the stability of the valve installation. At the same time, when the electric control actuator is in the working state, at this time, the circuit of the electric control actuator is connected. The connection of the circuit of the electric control actuator connects the circuit of the protection driving part. The connection of the circuit of the protection driving part generates magnetism. At this time, the protection driving part repels the protection driving magnet block to the left. The protection driving magnet block moves to the left and drives a set of connection limit sliders on the right to move to the left. A set of connection limit sliders on the right move to the left and pull the protection transmission rope. The protection transmission rope is pulled and guided by the protection guide pulley. At this time, the two sets of connection limit sliders move towards each other. The connection limit sliders moving towards each other drive the operation protection cover to move towards each other. The operation protection cover moving towards each other achieves the protection of the electric control actuator, avoiding the accidental touch of the electric control actuator by external personnel during operation, and ensuring the stable operation of the electric control actuator.

[0015] Through the setting of the lubrication driving mechanism of the present invention, the valve stop plunger moves downward and drives the coating driving part to move downward. The coating driving part moving downward drives the coating driving convex block to move downward. The coating driving convex block moving downward is limited by the inclined groove of the coating driving shaft. At this time, the coating driving shaft is driven to rotate. The coating driving shaft rotating drives the first driving gear to rotate. The first driving gear rotating drives the second driving gear to rotate. The second driving gear rotating drives the lubrication driving convex block to rotate. The lubrication driving convex block rotating drives the lubrication driving part to move left and right. The lubrication driving part moving left and right drives the lubrication connecting rod to move left and right. The lubrication connecting rod moving left and right is limited by the lubrication limit guide rail. At this time, the lubrication driving slider is driven to move along the lubrication limit guide rail. The lubrication driving slider moving drives the lubricating part to move. The lubricating part moving achieves the coating of the lubricating liquid on the surface of the valve stop plunger. The lubricating liquid consumed by the lubricating part is replenished through the lubricating liquid storage tank, achieving the automatic lubrication effect of the valve stop plunger, avoiding manual coating of the lubricating liquid, reducing the labor intensity of workers, ensuring the uniform coating of the lubricating liquid, and extending the service life of the entire valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0017] The following drawings in the description only relate to some embodiments of the present invention and do not limit the present invention.

[0018] In the drawings: Figure 1 is the overall structural schematic diagram of the embodiment of the present invention.

[0019] Figure 2It is a schematic structural diagram of the connection protection part according to an embodiment of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the protection driving part according to an embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the second driving gear according to an embodiment of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the protection guide wheel according to an embodiment of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the coating driving part according to an embodiment of the present invention.

[0024] Figure 7 It is a schematic structural diagram of the lubricating part according to an embodiment of the present invention.

[0025] Figure 8 It is a schematic structural diagram of the coating driving shaft according to an embodiment of the present invention.

[0026] List of reference numerals 1. Valve mounting bracket; 101. Connection protection part; 102. Connection limit slider; 103. Protection driving magnet; 104. Protection driving part; 105. Protection guide wheel; 106. Protection transmission rope; 107. Protection return spring; 2. Protection limit chute; 3. Electric control actuator; 4. Lubrication driving box; 5. Valve stop plunger; 6. Valve connection pipe; 7. Operation protection cover; 8. Lubricating liquid storage tank; 801. Lubrication limit guide rail; 802. Lubrication driving slider; 803. Lubricating part; 804. Lubrication connection pipe; 805. Coating driving shaft; 806. Coating driving part; 807. Coating driving convex block; 808. First driving gear; 809. Second driving gear; 810. Lubrication guide rod; 811. Lubrication driving part; 812. Lubrication driving convex block; 813. Lubrication connecting rod. Detailed implementation manners

[0027] Embodiment 1: Please refer to Figures 1 to 6 as shown: The present invention provides a hot water valve for high heat-resistant food machinery, including a valve mounting bracket 1, a protective limit chute 2, an electric control actuator 3, a lubrication drive box 4, a valve stop plunger 5, a valve connecting pipe 6, an operation protection cover 7, a lubricating fluid storage tank 8 and an operation protection mechanism; the protective limit chute 2 is opened at the front end inside the valve mounting bracket 1; the electric control actuator 3 is fixedly connected to the upper end of the valve mounting bracket 1; the lubrication drive box 4 is fixedly connected to the lower end of the valve mounting bracket 1; the valve stop plunger 5 is slidably connected to the lower end inside the electric control actuator 3; the valve connecting pipe 6 is fixedly connected to the lower end of the valve mounting bracket 1, and bolt structures are arranged at both the left and right ends of the valve connecting pipe 6; two groups of operation protection covers 7 are provided, and the two groups of operation protection covers 7 are respectively slidably connected to the left and right sides of the upper end of the valve mounting bracket 1, and the two groups of operation protection covers 7 are respectively arranged on the left and right sides of the electric control actuator 3; the lubricating fluid storage tank 8 is fixedly connected to the front end inside the lubrication drive box 4; the operation protection mechanism is arranged below the valve mounting bracket 1.

[0028] Among them, the operation protection mechanism includes: a connection protection part 101, a connection limit slider 102, a protection drive magnet 103, a protection drive part 104, a protection guide wheel 105, a protection drive rope 106 and a protection return spring 107; two groups of connection protection parts 101 are provided, and the two groups of connection protection parts 101 are both cylindrical structures, and the two groups of connection protection parts 101 are respectively slidably connected to the left and right sides of the outer periphery of the valve connecting pipe 6; two groups of connection limit sliders 102 are provided, and the two groups of connection limit sliders 102 are respectively fixedly connected to the front ends of the operation protection covers 7, and the two groups of connection limit sliders 102 are respectively slidably connected to the inside of the protective limit chute 2; the protection drive magnet 103 is fixedly connected to the right end of the right group of connection limit sliders 102; the protection drive part 104 is an electromagnet structure, the protection drive part 104 is connected in series with the circuit of the electric control actuator 3, and the protection drive part 104 and the protection drive magnet 103 have repulsive magnetic poles; the protection guide wheel 105 is rotatably connected to the lower right side of the valve mounting bracket 1; the protection drive rope 106 is wound around the outer periphery of the protection guide wheel 105, and both ends of the protection drive rope 106 are respectively fixedly connected to the connection limit sliders 102; the protection return spring 107 is fixedly connected to the left end of the left group of connection limit sliders 102, and the left end of the protection return spring 107 is fixedly connected to the valve mounting bracket 1.

[0029] Specific usage method and function of this embodiment: When installing the entire valve, first connect the valve connecting pipe 6 to the hot water pipe through bolts. After the connection is completed, move the connection protection member 101 to both sides. The connection protection member 101 realizes the protection of the connection position, avoids the connection of the valve connecting pipe 6 being knocked by external sundries, ensures the stable installation of the valve. At the same time, when the electric control actuator 3 is in the working state, the circuit of the electric control actuator 3 is connected at this time. The connection of the circuit of the electric control actuator 3 connects the circuit of the protection driving member 104. The connection of the circuit of the protection driving member 104 generates magnetism. At this time, the protection driving member 104 repels the protection driving magnet 103 to the left. The protection driving magnet 103 moves to the left and drives the right set of connection limit sliders 102 to move to the left. The right set of connection limit sliders 102 moves to the left and pulls the protection transmission rope 106. The protection transmission rope 106 is pulled and guided by the protection guide pulley 105. At this time, the two sets of connection limit sliders 102 move towards each other. The connection limit sliders 102 moving towards each other drive the operation protection cover 7 to move towards each other. The operation protection cover 7 moving towards each other realizes the protection of the electric control actuator 3, avoids the electric control actuator 3 being accidentally touched by external personnel during operation, and ensures the stable operation of the electric control actuator 3. When the electric control actuator 3 is powered off, the circuit of the protection driving member 104 is disconnected and the magnetism disappears. Under the action of the protection return spring 107, the two operation protection covers 7 are reset.

[0030] Embodiment Two: As Figures 1 to 8 shown: The present invention provides a hot water valve for high heat-resistant food machinery. On the basis of Embodiment One, it further includes a lubrication driving mechanism, and the lubrication driving mechanism is arranged inside the lubrication driving box body 4.

[0031] Among them, the lubrication driving mechanism includes: a lubrication limiting guide rail 801, a lubrication driving slider 802, a lubrication member 803, a lubrication connecting pipe 804, an application driving shaft 805, an application driving member 806, an application driving convex block 807, a first driving gear 808, a second driving gear 809, a lubrication guiding rod 810, a lubrication driving member 811, a lubrication driving convex block 812, and a lubrication connecting rod 813; the lubrication limiting guide rail 801 is an annular guide rail structure, the lubrication limiting guide rail 801 is fixedly connected inside the lubrication driving box body 4, and the lubrication limiting guide rail 801 is arranged on the outer periphery of the valve stop plunger 5; two groups of lubrication driving sliders 802 are provided, and both groups of lubrication driving sliders 802 are slidably connected to the upper end inside the lubrication limiting guide rail 801; the lubrication member 803 is fixedly connected to the upper end of the lubrication driving slider 802, and a sponge structure is arranged inside the lubrication member 803; the lubrication connecting pipe 804 is fixedly connected to the front end of the lubrication member 803, and the front end of the lubrication connecting pipe 804 is internally communicated with the lubricating fluid storage tank 8; the application driving shaft 805 is a cylindrical structure with an inclined groove opened inside, and the application driving shaft 805 is rotatably connected inside the lubrication driving box body 4; the application driving member 806 is fixedly connected to the outer periphery front end of the valve stop plunger 5, and the lower end of the application driving member 806 is arranged inside the application driving shaft 805; the application driving convex block 807 is fixedly connected to the outer periphery lower end of the application driving member 806, and the application driving convex block 807 is slidably connected inside the inclined groove of the application driving shaft 805; the first driving gear 808 is coaxially and fixedly connected to the lower end of the application driving shaft 805; the second driving gear 809 is rotatably connected inside the lubrication driving box body 4, and the second driving gear 809 meshes with the first driving gear 808; the lubrication guiding rod 810 is fixedly connected inside the lubrication driving box body 4; the lubrication driving member 811 is slidably connected to the outside of the lubrication guiding rod 810, and a rectangular groove structure is opened at the middle position of the lubrication driving member 811; the lubrication driving convex block 812 is fixedly connected to the upper end centrifugal position of the second driving gear 809, and the lubrication driving convex block 812 is arranged inside the rectangular groove of the lubrication driving member 811; the lubrication connecting rod 813 is slidably connected to the inner rear end of the lubrication driving member 811, and the rear end of the lubrication connecting rod 813 is fixedly connected to the front group of lubrication driving sliders 802.

[0032] Specific usage method and function of this embodiment: When the valve stop plunger 5 moves downward, the downward movement of the valve stop plunger 5 drives the application driving member 806 to move downward. The downward movement of the application driving member 806 drives the application driving projection 807 to move downward. Under the limit of the inclined groove of the application driving shaft 805, the application driving shaft 805 is driven to rotate at this time. The rotation of the application driving shaft 805 drives the first driving gear 808 to rotate. The rotation of the first driving gear 808 drives the second driving gear 809 to rotate. The rotation of the second driving gear 809 drives the lubrication driving projection 812 to rotate. The rotation of the lubrication driving projection 812 drives the lubrication driving member 811 to move left and right. The left and right movement of the lubrication driving member 811 drives the lubrication connecting rod 813 to move left and right. Under the limit of the lubrication limit guide rail 801, the lubrication driving slider 802 is driven to move along the lubrication limit guide rail 801 at this time. The movement of the lubrication driving slider 802 drives the lubricating member 803 to move. The movement of the lubricating member 803 realizes the application of the lubricating liquid on the surface of the valve stop plunger 5. The lubricating liquid consumed by the lubricating member 803 is replenished through the lubricating liquid storage tank 8, realizing the automatic lubrication effect on the valve stop plunger 5, avoiding manual application of the lubricating liquid, reducing the labor intensity of workers, ensuring uniform application of the lubricating liquid, and extending the service life of the entire valve.

[0033] In this article, the following points need to be noted: 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0034] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0035] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A hot water valve for a high heat-resistant food machinery, characterized in that: The invention comprises a valve mounting frame (1), a protective limit slide groove (2), an electric control actuator (3), a lubrication drive box (4), a valve stop plunger (5), a valve connecting pipe (6), an operation protection cover (7), a lubricating liquid storage box (8), an operation protection mechanism and a lubrication drive mechanism; the protective limit slide groove (2) is arranged at the inner front end of the valve mounting frame (1); the electric control actuator (3) is fixedly connected to the upper end of the valve mounting frame (1); the lubrication drive box (4) is fixedly connected to the lower end of the valve mounting frame (1); the valve stop plunger (5) is slidably connected to the inner lower end of the electric control actuator (3); The valve connecting pipe (6) is fixedly connected to the lower end of the valve mounting frame (1), and bolt structures are arranged at both left and right ends of the valve connecting pipe (6); two groups of operation protection covers (7) are arranged in total, and the two groups of operation protection covers (7) are respectively slidably connected to the left and right sides of the upper end of the valve mounting frame (1), and the two groups of operation protection covers (7) are respectively arranged on the left and right sides of the electric control actuator (3); the lubricating liquid storage box (8) is fixedly connected to the internal front end of the lubricating drive box (4); the operation protection mechanism is arranged below the valve mounting frame (1); and the lubricating drive mechanism is arranged inside the lubricating drive box (4).

2. A hot water valve for a high heat-resistant food machine as claimed in claim 1, characterized in that: The operation protection mechanism comprises: a connection protection member (101); two groups of the connection protection members (101) are provided, both groups of the connection protection members (101) are cylindrical structures, and the two groups of the connection protection members (101) are respectively slidably connected to the left and right sides of the outer circumference of the valve connection pipe (6).

3. A hot water valve for a high heat-resistant food machine as claimed in claim 2, characterized in that: The operation protection mechanism further comprises: a connecting limit slider (102), a protective drive magnetic block (103) and a protective drive member (104); the connecting limit slider (102) is provided in two groups, the two groups of connecting limit sliders (102) are respectively fixedly connected to the front end of the operation protection cover (7), and the two groups of connecting limit sliders (102) are respectively slidably connected to the inside of the protective limit slide groove (2); the protective drive magnetic block (103) is fixedly connected to the right end of the right group of connecting limit sliders (102); the protective drive member (104) is an electromagnet structure, the protective drive member (104) is connected in series with the circuit of the electric control actuator (3), and the magnetic poles of the protective drive member (104) and the protective drive magnetic block (103) repel each other.

4. A hot water valve for a high heat-resistant food machine as claimed in claim 3, characterized in that: The operation protection mechanism further comprises: a protection guide wheel (105), a protection transmission rope (106) and a protection reset spring (107); the protection guide wheel (105) is rotatably connected to the right side of the lower end of the valve mounting frame (1); the protection transmission rope (106) is wound around the outer circumference of the protection guide wheel (105), and the two ends of the protection transmission rope (106) are respectively fixedly connected to the connection limit slider (102); the protection reset spring (107) is fixedly connected to the left end of a group of connection limit sliders (102) on the left side, and the left end of the protection reset spring (107) is fixedly connected to the valve mounting frame (1).

5. A hot water valve for a high heat-resistant food machine as claimed in claim 1, characterized in that: The lubrication drive mechanism comprises: a lubrication limit guide rail (801), a lubrication drive slider (802), a lubrication member (803) and a lubrication connection pipe (804); the lubrication limit guide rail (801) is a circular guide rail structure, the lubrication limit guide rail (801) is fixedly connected to the inside of the lubrication drive box (4), and the lubrication limit guide rail (801) is arranged on the outer periphery of the valve stop plunger (5); the lubrication drive slider (802) is provided in two groups, and the two groups of lubrication drive sliders (802) are both slidably connected to the inner upper end of the lubrication limit guide rail (801); the lubrication member (803) is fixedly connected to the upper end of the lubrication drive slider (802), and a sponge structure is arranged on the inner side of the lubrication member (803); the lubrication connection pipe (804) is fixedly connected to the front end of the lubrication member (803), and the front end of the lubrication connection pipe (804) is connected to the inside of the lubricating liquid storage box (8).

6. A hot water valve for a high heat-resistant food machine as claimed in claim 5, characterized in that: The lubrication drive mechanism further comprises: a coating drive shaft (805), a coating drive member (806) and a coating drive protrusion (807); the coating drive shaft (805) is a cylindrical structure with an inclined groove formed inside, and the coating drive shaft (805) is rotatably connected to the inside of the lubrication drive housing (4); the coating drive member (806) is fixedly connected to the front end of the outer periphery of the valve stop plunger (5), and the lower end of the coating drive member (806) is arranged inside the coating drive shaft (805); the coating drive protrusion (807) is fixedly connected to the lower end of the outer periphery of the coating drive member (806), and the coating drive protrusion (807) is slidably connected to the inside of the inclined groove of the coating drive shaft (805).

7. A hot water valve for a high heat-resistant food machine as claimed in claim 6, characterized in that: The lubrication drive mechanism further comprises: a first drive gear (808) and a second drive gear (809); the first drive gear (808) is coaxially fixedly connected to the lower end of the coating drive shaft (805); the second drive gear (809) is rotatably connected to the inside of the lubrication drive housing (4), and the second drive gear (809) is meshed with the first drive gear (808).

8. A hot water valve for a high heat-resistant food machine as claimed in claim 7, characterized in that: The lubrication drive mechanism further comprises: a lubrication guide rod (810), a lubrication drive member (811), a lubrication drive protrusion (812) and a lubrication connecting rod (813); the lubrication guide rod (810) is fixedly connected to the inside of the lubrication drive housing (4); the lubrication drive member (811) is slidably connected to the outside of the lubrication guide rod (810), and a rectangular groove structure is provided in the middle of the lubrication drive member (811); the lubrication drive protrusion (812) is fixedly connected to the upper centrifugal part of the second drive gear (809), and the lubrication drive protrusion (812) is arranged in the rectangular groove of the lubrication drive member (811); the lubrication connecting rod (813) is slidably connected to the inner rear end of the lubrication drive member (811), and the rear end of the lubrication connecting rod (813) is fixedly connected to a group of lubrication drive sliders (802) in front.

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