Glassware cleaning machine with adjustable floor height

Abstract

The invention relates to the technical field of glassware cleaning equipment, in particular to a glassware cleaning machine capable of adjusting the layer height. Comprising a cleaning cavity, a cleaning frame arranged in the cleaning cavity, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are arranged outside the cleaning cavity, a longitudinally-arranged telescopic pipe sleeve is arranged in an inner cavity of the cleaning cavity and communicates with the water inlet pipe through a transverse pipe, and the upper end of the telescopic pipe sleeve is slidably sleeved with an inner pipe capable of axially sliding; a thermosensitive sealing device is arranged between the inner pipe and the telescopic pipe sleeve; the cleaning frame comprises a fixed guide rail fixedly installed on the inner wall of the cleaning cavity and a lifting guide rail installed on the lifting device. The fixed guide rail and the lifting guide rail each comprise two linear sliding rails which are symmetrically arranged. The fixed guide rail is provided with a fixed position tray connector communicated with the telescopic pipe sleeve, the lifting guide rail is fixedly connected with the inner pipe, and the lifting guide rail is provided with a lifting position tray connector communicated with the inner pipe. The structure is reasonable, use is flexible and convenient, and the height gap can be adjusted to adapt to glassware with different heights.

Description

Technical Field

[0001] The invention relates to the technical field of glassware washing equipment, in particular to a glassware washing machine with adjustable layer height. Background Art

[0002] Glassware needs to be cleaned and dried on its inner and outer walls before each use. Because glassware is fragile and afraid of bumps, most existing dishwashing machines use a tray with a dish holder to put multiple dishes into the washing machine and use a combination of spraying and spraying to clean the inner and outer walls of the glassware, and then use hot air to dry them after washing. This dishwashing machine must not only have spray pipes arranged above and around the tray for spraying detergent to clean the outer surface of the dish, but also have nozzles arranged on the dish holder for spraying detergent to clean the inner side of the dish. Usually, a water channel is arranged in the dish tray, and the nozzle on the dish holder is connected to the water channel in the dish tray. Since the dish tray must be detachable, it is convenient to take out the tray to load the glassware and then put it back into the washing machine. Therefore, the water channel in the dish tray can only be connected to the main water pipe of the washing machine using a detachable quick-connect interface. Another Chinese patent of mine, 2021210539409, discloses "A fully automatic utensil washing machine", with the publication number CN215143095U, including a washing chamber, a washing rack is arranged inside the washing chamber, the washing rack is connected to the circulation pipeline below, a circulation pump is connected to the circulation pipeline, and several spray pipes are vertically connected above the washing rack, and the spray pipes are connected to the inside of the washing chamber through the circulation pipeline, and the inside of the washing chamber is connected to an air heating pipe and a vacuum pump, and the vacuum pump is connected to the washing chamber through a vacuum pump electric ball valve, and a drying fan is connected to one side of the washing chamber, and the drying fan is connected to the inside of the washing chamber through a fan electric ball valve, and an exhaust electric ball valve is connected above the washing chamber. After the utensil washing procedure is completed, the utensil can be dried immediately to realize the integrated operation of washing and drying the utensil, so as to achieve the effect of accurate cleaning and quick drying. However, the positions of the circulation pipeline and the washing rack of this washing machine are relatively fixed, and the gap between the washing racks cannot be adjusted. In this case, there can only be a fixed height of the layer height in the same washing chamber, which cannot meet the cleaning of glassware of different heights. In actual work, the heights of various glassware vary greatly. After the total height of the cleaning chamber is determined, a cleaning chamber with many layers and small inter-layer spacing can only be used to clean small test tubes and beakers, and cannot clean test tubes and beakers with larger heights; conversely, a cleaning chamber with few layers and large inter-layer spacing will waste layer height space when cleaning shorter glassware, thereby reducing utilization efficiency. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a glassware washing machine with adjustable layer height, which has reasonable structure, is flexible and convenient to use, and can adjust the layer height gap to meet the needs of washing glassware of different heights.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] The glassware washing machine with adjustable layer height described in the present invention comprises a washing chamber, a washing rack arranged inside the washing chamber, a water inlet pipe and a water outlet pipe arranged outside the washing chamber, the inner chamber of the washing chamber is provided with a longitudinally arranged telescopic pipe sleeve, the telescopic pipe sleeve is connected with the water inlet pipe through a transverse pipe, the upper end sliding sleeve of the telescopic pipe sleeve is provided with an axially slidable inner pipe, and a heat-sensitive sealing device is provided between the inner pipe and the telescopic pipe sleeve; the washing rack comprises a fixed guide rail fixedly installed on the inner wall of the washing chamber and a lifting guide rail installed on the lifting device, the fixed guide rail and the lifting guide rail both comprise two symmetrically arranged linear slide rails; the fixed guide rail is provided with a fixed position tray interface connected with the telescopic pipe sleeve, the lifting guide rail is fixedly connected with the inner pipe and a lifting position tray interface connected with the inner pipe is provided on the lifting guide rail.

[0006] Through this solution, the cleaning rack of the glassware washing machine can adjust the layer height gap to meet the cleaning needs of glassware of different heights.

[0007] Preferably, the heat-sensitive sealing device includes a spring seat, a spring fixedly connected to the spring seat, and a sealing ring fixedly connected to the spring. The spring seat is an annular structure whose inner diameter matches the outer diameter of the inner tube. The outer circumference of the spring seat is fixedly connected to the inner wall of the telescopic tube sleeve. The spring is a helical spring wire or spring sheet made of heat-sensitive material that is stretched when heated. A closed opening that matches the outer contour of the sealing ring is provided at the tube mouth of the telescopic tube sleeve, corresponding to the position of the sealing ring.

[0008] Through this solution, the high temperature of the cleaning machine during operation can cause the heat-sensitive sealing device to expand, thereby closing the gap between the inner tube and the telescopic tube sleeve, so that the high-temperature detergent in the telescopic tube sleeve is transported to the lifting guide rail through the inner tube.

[0009] Preferably, the heat-sensitive sealing device includes a base, a sealing ring, and a connecting rod arranged between the base and the sealing ring. The base is a hollow annular structure fixedly connected to the inner wall of the telescopic tube sleeve, the inner ring diameter of the base is adapted to the outer diameter of the inner tube, an annular heat-sensitive balloon is installed in the inner cavity of the base, and the inner cavity of the heat-sensitive balloon is filled with heat-sensitive material. The heat-sensitive balloon is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is connected to the sealing ring through a clamping ring. A closed opening adapted to the outer contour shape of the sealing ring is provided at the tube mouth of the telescopic tube sleeve, corresponding to the position of the sealing ring.

[0010] Through this solution, the high temperature of the cleaning machine during operation can cause the heat-sensitive sealing device to expand, thereby closing the gap between the inner tube and the telescopic tube sleeve, so that the high-temperature detergent in the telescopic tube sleeve is transported to the lifting guide rail through the inner tube.

[0011] Preferably, the sealing ring is an annular structure with a wedge-shaped cross section, and the closed opening is a reduced diameter pipe opening with a wedge-shaped cross section.

[0012] Through this solution, the sealing ring and the closed port cooperate to achieve a good sealing effect.

[0013] Preferably, the sealing ring is an annular structure sleeved on the inner tube, the upper end face of the sealing ring is an annular curved surface with an arc-shaped cross section, the closed opening is an annular reduced diameter pipe opening, and the inner annular surface of the closed opening is an annular curved surface with an arc-shaped cross section.

[0014] Through this solution, the sealing ring and the closed port cooperate to achieve a good sealing effect.

[0015] Preferably, the cross-section of the base is a U-shaped groove structure, the thermosensitive balloon is installed at the bottom of the U-shaped groove structure, the upper end of the thermosensitive balloon is fixedly connected to an annular piston plate that matches the opening of the U-shaped groove structure, the inner and outer ring surfaces of the annular piston plate are respectively slidably matched with the inner wall of the U-shaped groove structure through sealing rings, and the lower end of the connecting rod is fixedly connected to the annular piston plate.

[0016] Through this solution, the sealing ring is evenly stressed, runs smoothly, and is not easy to get stuck.

[0017] Preferably, the lifting device includes two groups of scissor-type lifting mechanisms symmetrically arranged in the cleaning chamber, the two groups of scissor-type lifting mechanisms are respectively arranged at the bottom of the two linear slide rails of the lifting guide rail, the scissor-type lifting mechanism includes a horizontally arranged upper slide rail and a lower slide rail and a cross arm arranged between the upper slide rail and the lower slide rail, the cross arm includes a hinged first support arm and a second support arm, the upper end of the first support arm is hinged on the upper slide rail, and the lower end is fixedly connected to the pulley connecting rod, the end of the pulley connecting rod is slidably installed in the lower slide rail through a pulley, and the lower end of the second support arm is hinged The first support arm is connected to the lower slide rail and the upper end is slidably installed in the upper slide rail through a pulley. The hinge shafts of the lower slide rails in the two groups of scissor lifts are coaxially arranged and fixedly connected together to form a transverse hinged rod. The lower ends of the first support arms in the two groups of scissor lifts are fixedly connected to the same pulley connecting rod. The middle position of the pulley connecting rod is provided with an internal threaded hole perpendicular to the axis of the pulley connecting rod. A screw rod is installed in the internal threaded hole through threaded cooperation. One end of the screw rod is rotatably connected to the transverse hinged rod, and the other end is provided with a driving tool interface. The driving tool interface is used to connect a manual tool or an electric tool that drives the screw rod to rotate.

[0018] Through this solution, the lifting device can drive the lifting guide rail to move longitudinally and adjust the floor height gap.

[0019] Preferably, the inner wall of the cleaning chamber is provided with a longitudinal slide rail perpendicular to the horizontal direction, and the outer wall of the upper slide rail is fixedly connected with a lifting slider slidably installed in the longitudinal slide rail.

[0020] Through this solution, the upper slide rail and the lifting guide rail move longitudinally more smoothly.

[0021] Due to the adoption of the above structure, the cleaning machine has a reasonable structure, is flexible and convenient to use, and can adjust the layer height gap to meet the cleaning needs of glassware of different heights. There is no need to change the tray structure and the existing cleaning tray can be directly used. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure of part A.

[0024] Figure 3 It is a schematic structural diagram of a heat-sensitive sealing device in an embodiment.

[0025] Figure 4 It is a schematic diagram of the structure of the sealing ring and the closing port in another embodiment.

[0026] Figure 5 Schematic diagram of the structure of a heat-sensitive sealing device in another embodiment.

[0027] Figure 6 It is a schematic diagram of the front structure of the lifting device.

[0028] Figure 7 It is a side structural diagram of the lifting device. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom", "top", "inner" and "outer" refer to directions away from the geometric center of a specific component, respectively.

[0030] The glassware washing machine with adjustable layer height of the present invention comprises a washing chamber 1, a washing rack arranged inside the washing chamber 1, a water inlet pipe 2 and a drain pipe 3 arranged outside the washing chamber 1, the water inlet pipe 2 transports the heated detergent into the washing chamber 1, sprays it out through the spray pipe inside the washing chamber 1 and the internal washing pipe 91 of the washing rack, washes the inner and outer walls of the glassware on the washing rack, and the waste water after washing is discharged through the drain pipe 3. For convenient use, a movable tray 9 is installed on the washing rack through a slide rail, and a pipeline connected to the internal washing pipe 91 of the washing rack is arranged on the movable tray 9, and a movable quick joint is arranged at the entrance of the pipeline; when the movable tray 9 is installed in place, the movable quick joint on the movable tray 9 is docked with the fixed quick joint of the washing rack, so that the waterway on the washing rack is connected with the waterway of the movable tray 9, and the detergent in the water inlet pipe 2 is transported to the washing chamber 1, and then sprays out from the internal washing pipe 91 of the washing rack through the washing rack and the movable tray 9. The structure and working principle of the above-mentioned washing rack and movable tray 9 are prior art, which will not be described in detail here.

[0031] like Figure 1 As shown, the inner cavity of the cleaning chamber 1 described in this embodiment is provided with a longitudinally arranged telescopic tube sleeve 4. In order not to hinder the movement of the movable tray 9, the telescopic tube sleeve 4 is installed in a groove 12 on a side wall of the cleaning chamber 1, and a slide rail supporting the sliding of the movable tray 9 is installed on the side wall of the cleaning chamber 1. The telescopic tube sleeve 4 will not hinder the movement of the movable tray 9.

[0032] The telescopic tube sleeve 4 is connected with the water inlet pipe 2 through the transverse tube 5. The transverse tube 5 penetrates the inside and outside of the cleaning chamber 1 to connect the telescopic tube sleeve 4 with the water inlet pipe 2. The upper end sliding sleeve of the telescopic tube sleeve 4 is provided with an axially slidable inner tube 41. The inner tube 41 can slide in the telescopic tube sleeve 4 to change the height of the inner tube 41. A heat-sensitive sealing device 6 is provided between the inner tube 41 and the telescopic tube sleeve 4. The heat-sensitive sealing device 6 will expand after being heated to seal the gap between the inner tube 41 and the telescopic tube sleeve 4 to prevent water leakage at the joint between the inner tube 41 and the telescopic tube sleeve 4.

[0033] The cleaning rack includes a fixed guide rail 7 fixedly installed on the inner wall of the cleaning chamber 1 and a lifting guide rail 71 installed on the lifting device. The position and height of the fixed guide rail 7 are fixed, and it is usually set at the bottom or top of the cleaning chamber 1. The lifting guide rail 71 can be lifted and lowered to a certain extent under the drive of the lifting device. Changing the height of the lifting guide rail 71 changes the gap between the lifting guide rail 71 and the fixed guide rail 7 to adapt to glassware of different heights.

[0034] The fixed guide rail 7 and the lifting guide rail 71 both include two symmetrically arranged linear guide rails; the fixed guide rail 7 is provided with a fixed position tray interface connected to the telescopic tube sleeve 4, and the lifting guide rail 71 is fixedly connected to the inner tube 41 and provided with a lifting position tray interface connected to the inner tube 41. In actual use, it is sufficient to set a fixed position tray interface or a lifting position tray interface on one of the linear guide rails in a set of fixed guide rails 7 and lifting guide rails 71. The fixed position tray interface and the lifting position tray interface have the same structure, and are both quick connectors for connecting the utensil tray in the existing glassware washing machine, and their structure and working principle will not be described in detail here.

[0035] like Figure 2 , Figure 3 As shown, the heat-sensitive sealing device 6 includes a spring seat 61, a spring 62 fixedly connected to the spring seat 61, and a sealing ring 63 fixedly connected to the spring 62. The spring seat 61 is an annular structure whose inner diameter is adapted to the outer diameter of the inner tube 41. The outer circumference of the spring seat 61 is fixedly connected to the inner wall of the telescopic tube sleeve 4. The spring 62 is a helical spring wire or spring sheet made of a heat-sensitive material that is elongated by heat. In this embodiment, a helical spring wire is used. A closed opening 42 adapted to the outer contour of the sealing ring 63 is provided at the tube opening of the telescopic tube sleeve 4, corresponding to the position of the sealing ring 63. The sealing ring 63 is an annular structure with a wedge-shaped cross section, and the closed opening 42 is a reduced diameter tube opening with a wedge-shaped cross section. When not heated, the length of the spring 62 is relatively short, the sealing ring 63 retracts to a deeper position in the telescopic tube sleeve 4 and is separated from the closed opening 42, and the inner tube 41 can slide in the telescopic tube sleeve 4 without hindrance; during the cleaning process, the heated detergent passes through the telescopic tube sleeve 4 and the inner tube 41, the spring 62 is heated and elongated, and the sealing ring 63 is pushed outward, and the sealing ring 63 moving upward is squeezed by the closed opening 42 and blocked in the gap between the inner tube 41 and the telescopic tube sleeve 4, which can avoid water leakage at the joint between the inner tube 41 and the telescopic tube sleeve 4, and ensure that the spray mechanism maintains a certain pressure.

[0036] As another embodiment of the present invention, Figure 5As shown, the thermosensitive sealing device 6 includes a base 64, a sealing ring 63, and a connecting rod 66 arranged between the base 64 and the sealing ring 63. The base 64 is a hollow annular structure fixedly connected to the inner wall of the telescopic tube sleeve 4. The inner ring diameter of the base 64 is adapted to the outer diameter of the inner tube 41. An annular thermosensitive balloon 67 is installed in the inner cavity of the base 64. The inner cavity of the thermosensitive balloon 67 is filled with a thermosensitive material. The thermosensitive material can be selected from paraffin and other materials with a solid-liquid phase transition temperature close to room temperature. At room temperature, the thermosensitive material is solid and has a small volume. After being heated, the thermosensitive material becomes liquid and expands in volume, causing the thermosensitive balloon 67 to expand. The thermosensitive balloon 67 is fixedly connected to one end of the connecting rod 66, and the other end of the connecting rod 66 is connected to the sealing ring 63 through a clamping ring. When the thermosensitive balloon 67 expands, it pushes the sealing ring 63 to move through the connecting rod 66; a closed opening 42 adapted to the outer contour shape of the sealing ring 63 is provided at the pipe opening of the telescopic tube sleeve 4, corresponding to the position of the sealing ring 63.

[0037] As a further improvement of the present invention, the cross section of the base 64 is a U-shaped groove structure, and the thermosensitive balloon 67 is installed at the bottom of the U-shaped groove structure, so that when the thermosensitive balloon 67 expands, its inner and outer annular surfaces are restricted by the side walls of the U-shaped groove structure and can only expand toward the notch of the U-shaped groove, and the upper end of the thermosensitive balloon 67 is fixedly connected with an annular piston sheet 68 matching the opening of the U-shaped groove structure, and the inner and outer annular surfaces of the annular piston sheet 68 are respectively slidably matched with the inner wall of the U-shaped groove structure through a sealing ring, and the lower end of the connecting rod 66 is fixedly connected to the annular piston sheet 68. The annular piston sheet 68 is an annular sheet structure whose inner and outer annular surfaces respectively adapt to the inner walls of both sides of the U-shaped groove structure, and is installed in the base 64 of the U-shaped groove structure, which can stabilize the connecting rod 66, so that the thermosensitive balloon 67 can stably move along the axial direction when pushing the connecting rod 66 to move.

[0038] There are two types of matching structures between the sealing ring 63 and the sealing opening 42, one of which is as follows: Figure 2 As shown, the sealing ring 63 is an annular structure with a wedge-shaped cross section, and the closed port 42 is a reduced diameter pipe port with a wedge-shaped cross section. Figure 4 As shown, the sealing ring 63 is an annular structure sleeved on the inner tube 41, the upper end face of the sealing ring 63 is an annular curved surface with a circular arc cross section, the closed port 42 is an annular reduced diameter pipe port, and the inner annular surface of the closed port 42 is an annular curved surface with a circular arc cross section.

[0039] like Figure 6 , Figure 7As shown, the lifting device includes two sets of scissor-type lifting mechanisms symmetrically arranged in the cleaning chamber 1, and the two sets of scissor-type lifting mechanisms are respectively arranged at the bottom of the two linear slide rails of the lifting guide rail 71. The scissor-type lifting mechanism includes a horizontally arranged upper slide rail 81 and a lower slide rail 82 and a cross arm arranged between the upper slide rail 81 and the lower slide rail 82. The upper slide rail 81 is fixedly connected to the bottom of the lifting guide rail 71, and the cross arm includes a hinged first support arm 83 and a second support arm 84. Figure 7 As shown, the upper end of the first support arm 83 is hinged on the upper slide rail 81, and the lower end is fixedly connected to the pulley link 89. The end of the pulley link 89 is slidably installed in the lower slide rail 82 through a pulley. The lower end of the second support arm 84 is hinged on the lower slide rail 82, and the upper end is slidably installed in the upper slide rail 82 through a pulley. The hinge axes of the lower slide rails 82 in the two groups of scissor-type lifts are coaxially arranged and fixedly connected together to form a transverse hinged rod. The lower ends of the first support arms 83 in the two groups of scissor-type lifts are fixedly connected to the same pulley link 89. The pulley link 89 and the transverse hinged rod form a stable rectangular frame structure through a group of lower slide rails 82 located on both sides thereof, and as the pulley link 89 can slide on the lower slide rail 82 and change the distance between it and the transverse hinged rod, when the pulley link 89 moves toward the transverse hinged rod, the lifting guide rail 71 is pushed up through the first support arm 83, the second support arm 84 and the upper slide rail 81, and vice versa, the lifting guide rail 71 is lowered. The middle position of the pulley connecting rod has an internal threaded hole perpendicular to the axis of the pulley connecting rod, and a screw 85 is installed in the internal threaded hole through threaded matching. One end of the screw 85 is rotatably connected to the transverse hinge rod, and the other end is provided with a driving tool interface 86, which is used to connect a manual tool or an electric tool that drives the screw 85 to rotate. The driving tool interface 86 can be an internal hexagonal hole for connecting a hexagonal wrench, or a hexagonal prism for connecting an adjustable wrench. When in use, the distance between the pulley connecting rod 89 and the transverse hinge rod can be changed by rotating the screw 85 with a hexagonal wrench or an adjustable wrench, thereby adjusting the height of the lifting guide rail 71.

[0040] In addition, in order to make the lifting guide rail 71 vertically lift smoothly, Figure 6 , Figure 7 As shown, the inner wall of the cleaning chamber 1 is provided with a longitudinal slide rail 11 perpendicular to the horizontal direction, and the outer wall of the upper slide rail 81 is fixedly connected with a lifting slider 88 slidably installed in the longitudinal slide rail 11. Of course, in order not to hinder the movement of the movable tray 9, the longitudinal slide rail 11 is installed on the outer side of the lifting guide rail 71 and in the groove located on the inner wall of the cleaning chamber 1.

[0041] When in use, when the cleaning mode is not turned on, the heat-sensitive sealing device 6 is not heated. According to the glassware to be cleaned, the screw 85 is rotated to change the height of the lifting guide rail 71 so that the distance between the lifting guide rail 71 and the fixed guide rail 7 is adapted to the height of the glassware to be cleaned. For example, when the glassware to be cleaned is of a normal height, the lifting guide rail 71 can be placed in the middle position so that the distance between the lifting guide rail 71 and the fixed guide rail 7 below and the top plate of the cleaning chamber 1 above is equal, so that a movable tray 9 for holding normal height glassware can be installed on each of the lifting guide rail 71 and the fixed guide rail 7; when the height of the glassware to be cleaned exceeds the normal height, the height of the lower layer or the upper layer of the cleaning chamber can be increased by raising or lowering the lifting guide rail 71 to meet the cleaning requirements of ultra-high glassware. After the cleaning mode is turned on, the hot detergent enters the telescopic tube sleeve 4 through the water inlet pipe 2 and the horizontal pipe 5. The thermal sealing device 6 expands due to the heat and seals the gap between the telescopic tube sleeve 4 and the inner tube 41. On the one hand, the detergent enters the fixed position tray interface on the fixed guide rail 7 through the telescopic tube sleeve 4, and is transported to the movable tray 9 installed on the fixed guide rail 7 through the fixed position tray interface to clean the inner wall of the glassware on the movable tray 9; on the other hand, the detergent enters the lifting position tray interface on the lifting guide rail 71 through the inner tube 41, and is transported to the movable tray installed on the lifting guide rail 71 through the lifting position tray interface to clean the inner wall of the glassware on the movable tray. After the cleaning work is completed, the temperature of the thermal sealing device 6 returns to normal temperature, and the sealing ring 63 is reset.

[0042] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A glassware washing machine with adjustable height, comprising a washing chamber (1), a washing rack arranged inside the washing chamber (1), and a water inlet pipe (2) and a drain pipe (3) arranged outside the washing chamber (1), characterized in that: The inner cavity of the cleaning chamber (1) is provided with a telescopic tube sleeve (4) arranged longitudinally, the telescopic tube sleeve (4) is connected to the water inlet pipe (2) through a transverse tube (5), the upper end sliding sleeve of the telescopic tube sleeve (4) is provided with an inner tube (41) which can slide axially, and a heat-sensitive sealing device (6) is provided between the inner tube (41) and the telescopic tube sleeve (4); the cleaning rack comprises a fixed guide rail (7) fixedly mounted on the inner wall of the cleaning chamber (1) and a lifting guide rail (71) mounted on the lifting device, the fixed guide rail (7) and the lifting guide rail (71) both comprising two symmetrically arranged linear slide rails; the fixed guide rail (7) is provided with a fixed position tray interface connected to the telescopic tube sleeve (4), the lifting guide rail (71) is fixedly connected to the inner tube (41), and the lifting guide rail (71) is provided with a lifting position tray interface connected to the inner tube (41).

2. The glassware washing machine with adjustable layer height according to claim 1, characterized in that: The heat-sensitive sealing device (6) comprises a spring seat (61), a spring (62) fixedly connected to the spring seat (61), and a sealing ring (63) fixedly connected to the spring (62); the spring seat (61) is an annular structure whose inner diameter matches the outer diameter of the inner tube (41); the outer circumference of the spring seat (61) is fixedly connected to the inner wall of the telescopic tube sleeve (4); the spring (62) is a helical spring wire or spring sheet made of a heat-sensitive material that stretches when heated; and a closed opening (42) matching the outer contour of the sealing ring (63) is provided at the tube opening of the telescopic tube sleeve (4) at a position corresponding to the sealing ring (63).

3. The glassware washing machine with adjustable layer height according to claim 1, characterized in that: The heat-sensitive sealing device (6) comprises a base (64), a sealing ring (63), and a connecting rod (66) arranged between the base (64) and the sealing ring (63); the base (64) is a hollow annular structure fixedly connected to the inner wall of the telescopic tube sleeve (4); the inner ring diameter of the base (64) is adapted to the outer diameter of the inner tube (41); an annular heat-sensitive balloon (67) is installed in the inner cavity of the base (64); the inner cavity of the heat-sensitive balloon (67) is filled with heat-sensitive material; the heat-sensitive balloon (67) is fixedly connected to one end of the connecting rod (66); the other end of the connecting rod (66) is connected to the sealing ring (63) through a clamp; a closed opening (42) adapted to the outer contour shape of the sealing ring (63) is arranged at the tube opening of the telescopic tube sleeve (4) and at a position corresponding to the sealing ring (63).

4. The glassware washing machine with adjustable layer height according to claim 2 or 3, characterized in that: The sealing ring (63) is an annular structure with a wedge-shaped cross section, and the closed opening (42) is a reduced diameter pipe opening with a wedge-shaped cross section.

5. The glassware washing machine with adjustable layer height according to claim 2 or 3, characterized in that: The sealing ring (63) is an annular structure sleeved on the inner tube (41), the upper end surface of the sealing ring (63) is an annular curved surface with a circular arc cross section, the closed opening (42) is an annular reduced diameter pipe opening, and the inner annular surface of the closed opening (42) is an annular curved surface with a circular arc cross section.

6. The glassware washing machine with adjustable layer height according to claim 3, characterized in that: The cross-section of the base (64) is a U-shaped groove structure, the thermosensitive balloon (67) is installed at the bottom of the U-shaped groove structure, the upper end of the thermosensitive balloon (67) is fixedly connected to an annular piston plate (68) matching the opening of the U-shaped groove structure, the inner and outer ring surfaces of the annular piston plate (68) are respectively slidably matched with the inner wall of the U-shaped groove structure through a sealing ring, and the lower end of the connecting rod (66) is fixedly connected to the annular piston plate (68).

7. The glassware washing machine with adjustable layer height according to claim 1, 2 or 3, characterized in that: The lifting device comprises two groups of scissor-type lifting mechanisms which are symmetrically arranged in the cleaning chamber (1). The two groups of scissor-type lifting mechanisms are respectively arranged at the bottom of two linear slide rails of the lifting guide rail (71). The scissor-type lifting mechanism comprises a horizontally arranged upper slide rail (81) and a lower slide rail (82) and a cross arm arranged between the upper slide rail (81) and the lower slide rail (82). The cross arm comprises a hinged first support arm (83) and a second support arm (84). The upper end of the first support arm (83) is hinged on the upper slide rail (81) and the lower end is fixedly connected to the pulley connecting rod (89). The end of the pulley connecting rod (89) is slidably installed in the lower slide rail (82) through a pulley. The second support arm (84) ) is hinged on the lower rail (82) at the lower end, and the upper end is installed in the upper rail (82) through a pulley sliding. The hinge axes of the lower rails (82) in the two sets of scissor lifts are coaxially arranged and fixedly connected together to form a transverse hinged rod. The lower ends of the first support arms (83) in the two sets of scissor lifts are fixedly connected to the same pulley connecting rod (89). The middle position of the pulley connecting rod has an internal threaded hole perpendicular to the axis of the pulley connecting rod. A screw rod (85) is installed in the internal threaded hole through threaded matching. One end of the screw rod (85) is rotatably connected to the transverse hinged rod, and the other end is provided with a driving tool interface (86). The driving tool interface (86) is used to connect a manual tool or an electric tool that drives the screw rod (85) to rotate.

8. The glassware washing machine with adjustable layer height according to claim 7, characterized in that: The inner wall of the cleaning chamber (1) is provided with a longitudinal slide rail (11) perpendicular to the horizontal direction, and the outer wall of the upper slide rail (81) is fixedly connected with a lifting slider (88) slidably mounted in the longitudinal slide rail (11).

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