Tunnel type multi-section spraying cleaning equipment

By introducing adjustment and reciprocating components into the tunnel-type multi-segment spray cleaning equipment, combined with the protrusions on the conveyor belt, multi-directional spraying and stabilization of the bottle are achieved, solving the problems of incomplete cleaning of dead corners and bottle tipping in the existing technology, and improving the cleaning effect and the automation level of the equipment.

CN224143112UActive Publication Date: 2026-04-21HEZE WEIFUTE PACKAGING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEZE WEIFUTE PACKAGING MASCH CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing tunnel-type multi-segment spray cleaning equipment cannot cover dead areas such as bottle neck threads and bottle bottom grooves during spraying, and the conveying device lacks bottle fixing measures, resulting in poor cleaning effect or bottle tipping and damage.

Method used

The device employs an adjustment component and a reciprocating component. The alternating meshing of the half-face bevel gear and the double-headed bevel gear drives the gear ring to rotate in both directions, enabling the device to perform oscillating spraying and up-and-down moving spraying. The protrusions on the conveyor belt stabilize the bottle body, ensuring effective cleaning of the bottle body from multiple directions.

Benefits of technology

It achieves comprehensive cleaning of the bottle, avoids incomplete cleaning of dead corners, stabilizes the bottle to prevent tipping, and improves the cleaning effect and the automation level of the equipment.

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Abstract

The utility model relates to the technical field of bottle washing, and discloses tunnel type multi-section spraying cleaning equipment which comprises a conveying device, the conveying device comprises a conveying belt and a mounting frame, a supporting frame is fixedly arranged on the top face of the mounting frame of the conveying device, and an adjusting assembly is movably arranged in the supporting frame. The adjusting assembly comprises a water storage box, a moving frame, a crank, a supporting ring, an annular pipe and a rotating ring, the reciprocating assembly is movably arranged between the moving frame and the supporting ring and comprises a gear, a gear ring, a half-face bevel gear and a double-head bevel gear, the gear is fixedly arranged on the top face of the double-head bevel gear, and the half-face bevel gear and the double-head bevel gear are rotationally arranged on the moving frame; the gear ring is rotationally arranged in the supporting ring, the adjusting assembly drives the device to conduct swing spraying, the reciprocating assembly enables the device to conduct vertical moving spraying while conducting swing spraying, bottle bodies are sprayed from multiple directions at the same time, and the situation that dead angle areas are not cleaned in place is avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of bottle washing technology, specifically, it relates to a tunnel-type multi-stage spray cleaning device. Background Technology

[0002] The tunnel-type multi-segment spray cleaning equipment is an automated cleaning device that continuously feeds bottles into the cleaning tunnel via a conveyor belt. The tunnel is equipped with multiple high-pressure nozzles that spray and clean the materials from multiple directions, including top, bottom, left, and right.

[0003] The prior art discloses a tunnel chain mesh type high-efficiency bottle warmer (CN214693245U), which includes a main body. A geared motor is fixedly connected to the top of the main body. A water storage tank is fixedly connected to one side of the main body located on the top of the geared motor. A side door is fixedly connected to one side of the water storage tank. A heat-resistant rubber plate is fixedly connected to the inner cavity of the water storage tank. A circulation pipe is fixedly connected to the top of the water storage tank. The spray pipe can be completely removed for cleaning by loosening the fixing bolts. It is very convenient to install and disassemble, and it is easy to open it for observation, cleaning and maintenance at any time. When the bottles on the inlet and outlet conveyor belt are blocked, the main body automatically stops discharging bottles to prevent the equipment from overloading. The amount of steam added is changed to control the water temperature. It has the effects of simple operation and high degree of automation.

[0004] Research revealed that existing technologies use spray pipes to directly spray the bottle, employing only a single direction of spraying. This fails to cover hard-to-reach areas such as the bottle neck threads and bottom grooves, resulting in stain residue. Furthermore, the conveying device lacks proper securing measures when transporting the bottle to the spray pipe, causing the bottle to easily tilt and tip over under high-pressure spraying, leading to damage or affecting the cleaning effect.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A tunnel-type multi-stage spray cleaning device, including

[0008] The conveying device includes a conveyor belt and a mounting frame, wherein a support frame is fixedly mounted on the top surface of the mounting frame.

[0009] An adjustment assembly is movably disposed within a support frame. The adjustment assembly includes a water storage box, a movable frame, a crank, a support ring, an annular tube, and a rotating ring. The water storage box is movably disposed inside the support frame. The movable frame is slidably disposed within the support frame. The crank is rotatably disposed within the support frame. Two support rings are provided, and the two support rings are symmetrically fixed on the movable frame. The bottom of the water storage box is arranged in a circular array with multiple annular tubes and rotating rings. The annular tubes are fixedly disposed on the outer ring of the rotating ring.

[0010] A reciprocating assembly is movably disposed between a movable frame and a support ring. The reciprocating assembly includes a gear, a gear ring, a half-face bevel gear, and a double-ended bevel gear. The gear is fixedly disposed on the top surface of the double-ended bevel gear. The half-face bevel gear and the double-ended bevel gear are rotatably disposed on the movable frame. The gear ring is rotatably disposed within the support ring.

[0011] In a preferred embodiment of this utility model, a control device and a conveyor motor are fixedly installed on one side of the conveying device. The output end of the conveyor motor is connected to the output shaft of the conveyor belt. The control device is electrically connected to the conveyor motor. Multiple protrusions are arranged in an array on the conveyor belt. A door is hinged to one side of the support frame via a hinge.

[0012] In a preferred embodiment of the present invention, a guide rail is fixedly provided on each of the two inner sides of the mounting bracket, and a movable plate is slidably provided between the two guide rails. The bottom surface of the movable plate is provided with a groove, and the groove is provided with a corresponding protrusion.

[0013] In a preferred embodiment of this utility model, a high-pressure infusion pump and a low-pressure infusion pump are fixedly installed on the top surface of the support frame. The control device is electrically connected to the high-pressure infusion pump and the low-pressure infusion pump. An infusion tube is fixedly installed at the inlet end of the high-pressure infusion pump and the low-pressure infusion pump, and a telescopic tube is fixedly installed at the outlet end of the high-pressure infusion pump and the low-pressure infusion pump, respectively.

[0014] In a preferred embodiment of this utility model, a rotating motor is fixedly installed on the side of the support frame away from the door. The output end of the rotating motor passes through the support frame and is connected to one end of the crank. The control device is electrically connected to the rotating motor. A sliding groove is provided on the side of the movable frame near the wall of the support frame. The crank slides into the sliding groove. The movable frame has a C-shaped structure. A baffle is hinged to each end of the movable frame via a hinge.

[0015] In a preferred embodiment of this utility model, a drive motor is fixedly installed at each end of the movable frame. The control device is electrically connected to the two drive motors. The output end of the drive motor is connected to one side of the half-face bevel gear. The double-headed bevel gear is composed of two oppositely arranged bevel gears forming an H-shaped structure. The half-face bevel gear meshes with the double-headed bevel gear for transmission. The gear meshes with the gear ring for transmission.

[0016] In a preferred embodiment of this utility model, a plurality of mounting rings are arranged in a circumferential array on the support ring, and a T-shaped annular groove is formed between the support ring and the mounting ring. The toothed ring is rotatably disposed in the annular groove, and a plurality of pivot shafts are arranged in annular array on the top surface of the toothed ring. The rotating ring is rotatably disposed on the mounting ring, and a spiral groove is formed inside the rotating ring. The spiral groove engages with the support frame. A nozzle and a folded tube are fixedly disposed on the annular tube. The annular tube communicates with the water storage box through the folded tube, and the water storage box communicates with the telescopic tube.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting up adjustment components and reciprocating components, the reciprocating components utilize the alternating meshing of half-face bevel gears and double-headed bevel gears to drive the gears and gear rings to reciprocate in both forward and reverse directions. This, in turn, uses the gear rings to drive the rotating ring and the annular tube to rotate in both directions, thereby enabling the device to perform oscillating spraying. The rotating crank reciprocates to push the moving frame up and down, allowing the device to spray while oscillating and spraying, simultaneously spraying the bottle from multiple directions, thus avoiding incomplete cleaning of dead corner areas.

[0019] 2. By setting protrusions on the conveyor belt, the protrusions push the moving plate to move. The moving plate uses locking blocks to lock the bottle mouth and stabilize the bottle body. When the device sprays the bottle body, it can stabilize the bottle body and prevent it from tilting, thereby assisting the device in spraying and cleaning.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side sectional view of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the internal structure of this utility model;

[0026] Figure 5 This is a disassembled schematic diagram of the internal structure of this utility model;

[0027] Figure 6 This utility model Figure 5 Enlarged diagram of point A in the middle.

[0028] In the diagram: 10. Conveying device; 11. Control device; 12. Conveying motor; 13. Guide rail; 14. Protrusion; 15. Moving plate; 16. Box door; 17. Support frame; 18. Infusion tube; 19. Rotating motor; 20. High-pressure infusion pump; 21. Low-pressure infusion pump; 22. Telescopic tube; 23. Water storage box; 24. Baffle; 25. Moving frame; 26. Slide; 27. Crank; 28. Gear; 29. ​​Drive motor; 30. Support ring; 31. Folding tube; 32. Ring tube; 33. Rotating ring; 34. Nozzle; 35. Mounting ring; 36. Gear ring; 37. Dial shaft; 38. Half-face bevel gear; 39. Double-headed bevel gear. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0030] A tunnel-type multi-segment spray cleaning device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, including

[0031] The conveying device 10 includes a conveyor belt and a mounting frame. A support frame 17 is fixedly installed on the top surface of the mounting frame of the conveying device 10.

[0032] An adjustment assembly is movably disposed within the support frame 17. The adjustment assembly includes a water storage box 23, a movable frame 25, a crank 27, a support ring 30, an annular tube 32, and a rotating ring 33. The water storage box 23 is movably disposed inside the support frame 17, the movable frame 25 is slidably disposed within the support frame 17, the crank 27 is rotatably disposed within the support frame 17, and two support rings 30 are provided, which are symmetrically fixed on the movable frame 25. The bottom of the water storage box 23 is provided with a ring array of multiple annular tubes 32 and rotating rings 33, and the annular tubes 32 are fixedly disposed on the outer ring of the rotating ring 33.

[0033] The reciprocating assembly is movably disposed between the movable frame 25 and the support ring 30. The reciprocating assembly includes a gear 28, a gear ring 36, a half-face bevel gear 38, and a double-headed bevel gear 39. The gear 28 is fixedly disposed on the top surface of the double-headed bevel gear 39. The half-face bevel gear 38 and the double-headed bevel gear 39 are rotatably disposed on the movable frame 25, and the gear ring 36 is rotatably disposed within the support ring 30.

[0034] Specifically, this device controls the conveying device 10 and the spraying operation through the control device 11. The main feature is that the conveying device 10 conveys the bottles to be cleaned. By setting up the adjustment component and the reciprocating component, the reciprocating component uses the alternating meshing of the half-face bevel gear 38 and the double-headed bevel gear 39 to drive the gear 28 and the gear ring 36 to reciprocate in both directions. In turn, the gear ring 36 drives the rotating ring 33 and the annular tube 32 to rotate in both directions, thereby causing the device to perform oscillating spraying. The rotating crank 27 reciprocates to push the moving frame 25 up and down, so that the device can perform up and down spraying while oscillating spraying, spraying the bottle body from multiple directions at the same time, avoiding the incomplete cleaning of dead corner areas.

[0035] like Figure 4 As shown, a control device 11 and a conveyor motor 12 are fixedly installed on one side of the conveyor device 10. The output end of the conveyor motor 12 is connected to the output shaft of the conveyor belt. The control device 11 is electrically connected to the conveyor motor 12. Multiple protrusions 14 are arranged in an array on the conveyor belt. A door 16 is hinged to one side of the support frame 17 via a hinge.

[0036] like Figure 1 and Figure 2 As shown, a guide rail 13 is fixedly installed on each of the two sides inside the mounting bracket. A movable plate 15 is slidably installed between the two guide rails 13. The bottom surface of the movable plate 15 has a groove, which corresponds to the protrusion 14.

[0037] The working principle is as follows: A corresponding bottle mouth diameter is bolted to the center of the top surface of the moving plate 15. During use, the bottle is inverted so that the bottle mouth engages with the locking block, thus stabilizing the bottle. Furthermore, multiple moving plates 15 are slidably arranged between the two guide rails 13, which can support multiple bottle sizes for simultaneous cleaning. The top surface of the protrusion 14 is spherical, and the groove is an arc-shaped groove with a cross-section resembling a bend. The guide rails 13 are located on both sides above the conveyor belt. The groove of the moving plate 15 does not completely engage with the protrusion 14. When the control device 11 drives the conveyor motor 12 to start, the conveyor motor 12 drives the conveyor belt through the output shaft of the conveyor belt. At this time, the conveyor belt pushes the groove through the protrusion 14, thereby pushing the moving plate 15 and the bottle engaged above it to move. When the conveyor belt transmits the moving plate 15 to both ends of the mounting frame through the protrusion 14, the protrusion 14 rotates away from the moving plate 15 due to the cooperation of the arc surface inside the groove. At this time, the moving plate 15 is pushed back to the conveying port of the bottle by the operator, and the above operation is repeated.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, a high-pressure infusion pump 20 and a low-pressure infusion pump 21 are fixedly installed on the top surface of the support frame 17. The control device 11 is electrically connected to the high-pressure infusion pump 20 and the low-pressure infusion pump 21. An infusion tube 18 is fixedly installed at the inlet end of the high-pressure infusion pump 20 and the low-pressure infusion pump 21, and a telescopic tube 22 is fixedly installed at the outlet end of the high-pressure infusion pump 20 and the low-pressure infusion pump 21, respectively.

[0039] The working principle is as follows: When the spraying operation is carried out, the control device 11 drives the high-pressure infusion pump 20 and the low-pressure infusion pump 21 to be used simultaneously. The high-pressure infusion pump 20 and the low-pressure infusion pump 21 are respectively connected to the cleaning water source through the corresponding infusion pipe 18. The high-pressure infusion pump 20 and the low-pressure infusion pump 21 are respectively connected to different water storage boxes 23 through the corresponding telescopic pipe 22. The high-pressure infusion pump 20 and the low-pressure infusion pump 21 respectively deliver water to the corresponding water storage box 23 through the connected telescopic pipe 22. At this time, the two water storage boxes 23 respectively form high-pressure and low-pressure spraying areas.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a rotating motor 19 is fixedly installed on the side of the support frame 17 away from the door 16. The output end of the rotating motor 19 passes through the support frame 17 and is connected to one end of the crank 27. The control device 11 is electrically connected to the rotating motor 19. A sliding groove 26 is provided on the side of the moving frame 25 near the wall of the support frame 17. The crank 27 slides in the sliding groove 26. The moving frame 25 has a C-shaped structure. A baffle 24 is hinged to each end of the moving frame 25 by a hinge.

[0041] Specifically, a sliding column is installed on the side of the crank 27 near the slide groove 26. The sliding column is located at the end of the crank 27 away from the center. When the control device 11 drives the rotating motor 19 to start, the rotating motor 19 drives the crank 27 to rotate. The rotating crank 27 pushes the moving frame 25 to rise and fall through the sliding cooperation between the sliding column and the slide groove 26. The two ends of the moving frame 25 are protected by the internal reciprocating components through the baffle 24. When the moving frame 25 rises and falls, it pulls the telescopic tube 22 to deform. The deformed telescopic tube 22 cooperates to transport the water source to the water storage box 23.

[0042] like Figure 5 and Figure 6As shown, a drive motor 29 is fixedly installed at each end of the movable frame 25. The control device 11 is electrically connected to the two drive motors 29. The output end of the drive motor 29 is connected to one side of the half-face bevel gear 38. The double-headed bevel gear 39 is composed of two oppositely arranged bevel gears forming an H-shaped structure. The half-face bevel gear 38 and the double-headed bevel gear 39 mesh and transmit power. The gear 28 meshes and transmits power with the gear ring 36.

[0043] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a plurality of mounting rings 35 are arranged in a circular array on the support ring 30. A T-shaped annular groove is opened between the support ring 30 and the mounting ring 35. A toothed ring 36 is rotatably arranged in the annular groove. A plurality of pivot shafts 37 are arranged in a circular array on the top surface of the toothed ring 36. A rotating ring 33 is rotatably arranged on the mounting ring 35. A spiral groove is opened in the rotating ring 33, which corresponds to the meshing of the support frame 17. A nozzle 34 and a folded pipe 31 are fixedly arranged on the annular pipe 32. The annular pipe 32 is connected to the water storage box 23 through the folded pipe 31. The water storage box 23 is connected to the telescopic pipe 22.

[0044] Specifically, the two ends of the movable frame 25 are box structures. The cross-section of the annular groove inside the support ring 30 is an inverted T-shape, and the annular groove communicates with the box parts at both ends of the movable frame 25. The gear 28 rotates through the movable frame 25 and rotates on part of the annular groove. The gear ring 26 drives the dial shaft 37 to rotate in the annular groove. When the control device 11 drives the drive motors 29 at both ends to start, the two half-face bevel gears 38 connected to the drive motors 29 begin to rotate. Since only half of the teeth of the half-face bevel gears 38 are opened, the half-face bevel gears 38 simultaneously mesh with the two bevel gears on the double-headed bevel gear 39. In this way, when the upper and lower ends of the half-face bevel gears 38 mesh with the upper and lower ends of the double-headed bevel gear 39 respectively, the direction of the meshing transmission between the gear 28 and the gear ring 36 is different. In this case, the gear ring 36 drives the pivot shaft 37 to switch back and forth in two directions. The shape of the pivot shaft 37 corresponds to the spiral groove inside the rotating ring 33. The spiral groove inside the rotating ring 33 is a trapezoidal spiral. When the pivot shaft 37 is driven by the gear ring 36, the pivot shaft 37 slides and engages in the spiral groove. The pivot shaft 37 drives the rotating ring 33 and the annular tube 32 to rotate through the spiral shape of the spiral groove. At this time, the rotating annular tube 32 pulls the folded tube 31 to deform. At this time, the folded tube 31 cooperates with the rotation of the annular tube 32. Synchronously, since the gear ring 36 and the pivot shaft 37 rotate back and forth in opposite directions, the pivot shaft 37 drives the rotating ring 33 and the annular tube 32 to rotate back and forth. At this time, the nozzle 34 forms an oscillating spray under the back and forth rotation of the annular tube 32 and the rotating ring 33.

[0045] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A tunnel-type multi-stage spray cleaning apparatus, characterized by, include A conveying device (10) includes a conveyor belt and a mounting frame. A support frame (17) is fixedly installed on the top surface of the mounting frame of the conveying device (10). An adjustment assembly is movably disposed within a support frame (17). The adjustment assembly includes a water storage box (23), a movable frame (25), a crank (27), a support ring (30), an annular tube (32), and a rotating ring (33). The water storage box (23) is movably disposed inside the support frame (17). The movable frame (25) is slidably disposed within the support frame (17). The crank (27) is rotatably disposed within the support frame (17). Two support rings (30) are provided, and the two support rings (30) are symmetrically fixed on the movable frame (25). The bottom of the water storage box (23) is provided with a ring array of multiple annular tubes (32) and rotating rings (33). The annular tubes (32) are fixedly disposed on the outer ring of the rotating rings (33). A reciprocating assembly is movably disposed between a movable frame (25) and a support ring (30). The reciprocating assembly includes a gear (28), a gear ring (36), a half-face bevel gear (38), and a double-headed bevel gear (39). The gear (28) is fixedly disposed on the top surface of the double-headed bevel gear (39). The half-face bevel gear (38) and the double-headed bevel gear (39) are rotatably disposed on the movable frame (25). The gear ring (36) is rotatably disposed within the support ring (30).

2. A tunnel-type multi-stage spray cleaning apparatus according to claim 1, characterized in that, A control device (11) and a conveyor motor (12) are fixedly installed on one side of the conveyor device (10). The output end of the conveyor motor (12) is connected to the output shaft of the conveyor belt. The control device (11) is electrically connected to the conveyor motor (12). Multiple protrusions (14) are arranged in an array on the conveyor belt. A door (16) is hinged to one side of the support frame (17) via a hinge.

3. A tunnel-type multi-stage spray cleaning apparatus according to claim 2, wherein A guide rail (13) is fixedly installed on each of the two sides of the mounting bracket. A movable plate (15) is slidably installed between the two guide rails (13). The bottom surface of the movable plate (15) is provided with a groove, and the groove is provided with a corresponding protrusion (14).

4. The tunnel-type multi-stage spray cleaning apparatus according to claim 2, wherein A high-pressure infusion pump (20) and a low-pressure infusion pump (21) are fixedly installed on the top surface of the support frame (17). The control device (11) is electrically connected to the high-pressure infusion pump (20) and the low-pressure infusion pump (21). An infusion tube (18) is fixedly installed at the inlet end of the high-pressure infusion pump (20) and the low-pressure infusion pump (21). A telescopic tube (22) is fixedly installed at the outlet end of the high-pressure infusion pump (20) and the low-pressure infusion pump (21).

5. A tunnel-type multi-stage spray cleaning apparatus according to claim 4, wherein A rotating motor (19) is fixedly installed on the side of the support frame (17) away from the door (16). The output end of the rotating motor (19) passes through the support frame (17) and is connected to one end of the crank (27). The control device (11) is electrically connected to the rotating motor (19). A sliding groove (26) is provided on the side of the moving frame (25) near the wall of the support frame (17). The crank (27) slides in the sliding groove (26). The moving frame (25) has a C-shaped structure. A baffle (24) is hinged to each end of the moving frame (25) by a hinge.

6. The tunnel-type multi-segment spray cleaning equipment according to claim 5, characterized in that, A drive motor (29) is fixedly installed at each end of the moving frame (25). The control device (11) is electrically connected to the two drive motors (29). The output end of the drive motor (29) is connected to one side of the half-face bevel gear (38). The double-headed bevel gear (39) is composed of two bevel gears arranged opposite each other to form an H-shaped structure. The half-face bevel gear (38) meshes with the double-headed bevel gear (39) for transmission. The gear (28) meshes with the gear ring (36) for transmission.

7. A tunnel-type multi-stage spray cleaning apparatus according to claim 6, wherein The support ring (30) is provided with a plurality of mounting rings (35) arranged in a circular array. A T-shaped groove is provided between the support ring (30) and the mounting ring (35). The toothed ring (36) is rotatably disposed in the groove. The top surface of the toothed ring (36) is provided with a plurality of pivot shafts (37) arranged in a circular array. The rotating ring (33) is rotatably disposed on the mounting ring (35). A spiral groove is provided in the rotating ring (33). The spiral groove meshes with the support frame (17). A nozzle (34) and a folding tube (31) are fixedly disposed on the annular tube (32). The annular tube (32) is connected to the water storage box (23) through the folding tube (31). The water storage box (23) is connected to the telescopic tube (22).

Citation Information

Patent Citations

  • Tunnel chain net type efficient bottle warming machine

    CN214693245U