Trolley type dish washing machine
The gap between the dishwasher cabinet and the trolley is solved by using a latch mechanism and modular design, achieving a tight connection and independent operation, which improves cleaning efficiency and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-17
AI Technical Summary
Existing commercial dishwashers have gaps between the cabinet and the trolley, which causes water and detergent to leak, making them inconvenient to use and difficult to maintain due to their lack of flexibility.
A locking mechanism was designed, which ensures a tight fit between the cabinet and the trolley through the cooperation of wedges and supports. Combined with the control of electric cylinders and electromagnets, the locking mechanism can be reliably locked. The modular design allows the cleaning unit and the trolley to operate independently.
It effectively prevents water and cleaning agent leakage, improves equipment flexibility and cleaning efficiency, and facilitates maintenance and parts replacement.
Smart Images

Figure CN223994863U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dishwasher technology, specifically relating to a trolley-type dishwasher. Background Technology
[0002] Currently, for places with fixed tableware (such as barbecue restaurants, fast food restaurants, school and government canteens), due to the large number of people, the tableware is generally washed in batches using dishwashers. The commonly used commercial dishwashers are mainly top-loading type and trolley type.
[0003] For example, Chinese patent number CN216797594U provides a new type of dishwasher, which includes a dishwasher cabinet and a mobile trolley. The mobile trolley pushes the tableware into the cabinet for cleaning and disinfection. However, the dishwasher cabinet uses high-pressure, high-temperature hot water to clean the tableware, and there is a gap between the cabinet and the mobile trolley, which is prone to water leakage from the joint, causing inconvenience in use. Utility Model Content
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A trolley-type dishwasher includes a washing main unit and a trolley. The washing main unit includes a cabinet, a main control room, and a washing chamber. The washing chamber is used to accommodate a movable trolley. The cabinet is provided with a latching mechanism, which is connected to the trolley by a latching engagement. The latching mechanism is electrically connected to the main control room.
[0006] According to a further preferred embodiment of the above technical solution, the latch mechanism includes a support and a wedge, the wedge is movably connected to the support, the support is fixed on the cabinet, the trolley is provided with a slot, and the wedge is inserted into the slot for a mating connection.
[0007] Preferably, the support is provided with a through hole, the wedge is provided with a shaft, the shaft is slidably connected to the inner wall of the through hole, the support is provided with an electric cylinder, and the free end of the electric cylinder is connected to the shaft coupling.
[0008] Preferably, the support is provided with a V-groove, the wedge is provided with a V-shaped platform, the V-groove and the V-shaped platform are slidably connected, the support is provided with a spring, the other end of the spring is fixedly connected to the wedge, and is used to drive the wedge to slide away from the support, the support is provided with an electromagnet, the movable end of the electromagnet is connected to the wedge, and the electromagnet is electrically connected to the main control room.
[0009] Preferably, the trolley includes a frame and casters, and the frame includes at least one bowl basket.
[0010] Preferably, the frame is provided with a sealing ring, which is fitted and connected to the cabinet.
[0011] Preferably, the main control room is equipped with a microprocessor, which is connected to the electric cylinder and electromagnet of the latch mechanism via a circuit, and is used to control the extension, retraction and locking of the latch mechanism.
[0012] Preferably, the cleaning chamber is equipped with a spray device, which is connected to the water source of the cleaning host through a pipe, and the nozzles of the spray device are distributed in the upper and lower parts of the cleaning chamber.
[0013] Preferably, the bottom of the cabinet is provided with a drain outlet, which is connected to the bottom of the cleaning chamber through a drain pipe. The drain pipe is provided with a drain valve, which is electrically connected to the main control room.
[0014] Preferably, the trolley frame is provided with a handle, which is located on the top of the frame to facilitate the operator to push the trolley.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. The device of this utility model is equipped with a pin mechanism to connect and fix the cabinet and the trolley, prevent the trolley from moving, avoid gaps between the cabinet and the trolley, and prevent water and cleaning agents from leaking from the gaps.
[0017] 2. This utility model's trolley-type dishwasher separates the washing unit from the trolley, allowing both to operate independently. This modular design not only improves the equipment's flexibility but also facilitates maintenance and component replacement, thereby significantly enhancing cleaning efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the device structure of this utility model;
[0019] Figure 2 This is a side view of the device of this utility model.
[0020] Figure 3 This is a cross-sectional view of the device of this utility model.
[0021] Figure 4 This is a cross-sectional view of the device BB of this utility model;
[0022] Figure 5 This is a schematic diagram of the isometric three-dimensional structure of the device of this utility model in the southwest direction;
[0023] Figure 6 This is a schematic diagram of the southeast equiaxed three-dimensional structure of the device of this utility model;
[0024] Figure 7 This is a schematic diagram of the bottom structure of the device of this utility model;
[0025] Figure 8This is a schematic diagram of the pin mechanism in Embodiment 1 of this utility model;
[0026] Figure 9 This is a schematic diagram of the pin mechanism in Embodiment 2 of this utility model;
[0027] Figure 10 This is a schematic diagram of the spray device structure of the present invention;
[0028] Figure 11 This is a front view structural diagram of the spray device of this utility model;
[0029] Figure 12 This is a CC cross-sectional view of the spray device of this utility model.
[0030] In the diagram: 1. Cleaning main unit, 2. Trolley, 21. Slot, 22. Frame, 23. Casters, 24. Sealing ring, 25. Handle, 3. Cabinet, 31. Drain outlet, 32. Drain valve, 4. Main control room, 5. Cleaning chamber, 51. Spray device, 52. Nozzle, 6. Pin mechanism, 61. Support, 62. Wedge, 63. Through hole, 64. Shaft, 65. Electric cylinder, 66. V-groove, 67. V-shaped platform, 68. Spring, 69. Electromagnet, 70. Handle. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0032] Example 1
[0033] like Figures 1 to 8As shown, this utility model provides an embodiment of a trolley-type dishwasher, including a washing main unit 1 and a trolley 2. The washing main unit 1 includes a cabinet 3, a main control chamber 4, and a washing chamber 5. The main control chamber 4 is equipped with a microprocessor, which is connected to the electric cylinder 65 and electromagnet 69 of the latch mechanism 6 via a circuit, for controlling the extension, retraction, and locking of the latch mechanism 6. The main control chamber 4 also includes a water tank, a detergent tank, and a high-temperature fan. The washing water and detergent from the water tank are piped to the washing chamber 5 for washing the tableware. The washing chamber 5 is equipped with a rotatable washing arm with several nozzles for spraying and cleaning the tableware from all directions and angles. The washing chamber 5 is used to accommodate the movable trolley 2, which includes a frame 22 and casters 23. The trolley 2 can be freely pushed by the casters 23, and the tableware does not need to be removed after washing; it can be pushed to the storage area. The frame 22 includes at least one dish rack for placing the tableware to be washed. The cabinet 3 is equipped with a latching mechanism 6, which is plugged into and connected to the trolley 2. The latching mechanism 6 is also electrically connected to the main control room 4. In existing technologies, the dishwasher trolley and cabinet do not fit tightly, allowing hot water and detergent to leak out through gaps, causing inconvenience. This invention features a latching mechanism that securely connects the cabinet and trolley, preventing movement and avoiding gaps between them. The latching mechanism and the slot on the trolley maintain an interference fit, ensuring a tight connection between the cabinet and the trolley support.
[0034] The latching mechanism 6 includes a support 61 and a wedge 62. The wedge 62 is movably connected to the support 61, and the support 61 is fixed to the cabinet 3. The trolley 2 is provided with a slot 21, and the wedge 62 is inserted into the slot 21 for connection. In this embodiment of the present invention, the support 61 is fixed to the inner wall of the cabinet 3. Specifically, there are no fewer than four supports 61, which are respectively arranged on both sides of the cabinet arm and are used to insert and fix the upper and lower ends of the trolley 2.
[0035] The support 61 is provided with a through hole 63, and the wedge 62 is provided with a shaft 64. The shaft 64 is slidably connected to the inner wall of the through hole 63. The support 61 is provided with an electric cylinder 65. The free end of the electric cylinder 65 is connected to the shaft 64 via a coupling to push the wedge 62 to slide. The electric cylinder 65 is electrically connected to the controller in the main control room 4. During use, when washing dishes, the electric cylinder 65 pushes the wedge 62 into the slot 21 to prevent the trolley 2 from sliding out of the cabinet 3. After the dishes are washed, a one-minute delay is set, and the electric cylinder 65 actuates, the wedge 62 automatically opens, and the washed dishes are pushed to the storage area. Specifically, the microcontroller in the main control room 4 is connected to a timer. The timer provides a countdown time, which can be freely set. The trolley 2 can only be pushed out after the countdown is completed to prevent the hot gas or water from the freshly washed dishes from scalding the staff. This utility model of a trolley-type dishwasher separates the washing unit and the trolley, allowing the washing unit and the trolley to operate independently. This modular design not only improves the flexibility of the equipment but also facilitates maintenance and component replacement, thereby significantly improving cleaning efficiency.
[0036] like Figures 10-12 As shown, the washing chamber 5 is equipped with a spray device 51, which is connected to the water source of the washing host 1 via a pipe. The nozzles 52 of the spray device 51 are distributed in the upper and lower parts of the washing chamber 5. Specifically, the spray device 51 is divided into several groups, which are arranged above the dish rack. When the spray device 51 rotates, the sprayed washing water sprays and cleans the tableware. In this embodiment of the utility model, the spray device 51 consists of several rotatable spray arms. Specifically, a flange is provided at the end of the spray water pipe, and a sealing groove is provided on the flange. A sealing O-ring is provided in the sealing groove. A rotatable sleeve is fitted on the flange, and a spray arm is provided on the sleeve. Several nozzles 52 are provided on the spray arm. The outlet direction of the nozzles 52 is at a certain angle to the surface of the spray arm. The spray arm rotates by utilizing the recoil force of the water. Specifically, the flange can also be replaced with a water ring bearing to reduce the rotational resistance between the spray arm and the water pipe. To enable rapid rotation of the spray arm, a rotary drive mechanism can be added to the spray arm, such as a motor driving gear transmission or a motor driving a belt.
[0037] The bottom of the cabinet 3 is provided with a drain outlet 31, which is connected to the bottom of the cleaning chamber 5 through a drain pipe. The drain pipe is provided with a drain valve 32, which is electrically connected to the main control room 4.
[0038] The trolley 2 has a handle 25 on its frame 22, which is located above the frame 22 to facilitate the operator to push the trolley 2.
[0039] Example 2
[0040] like Figures 1 to 7and Figure 9 As shown, this utility model provides another embodiment of a trolley-type dishwasher. The difference between this embodiment and the first embodiment is that they have different latching mechanisms. This embodiment includes a cleaning host 1 and a trolley 2. The cleaning host 1 includes a cabinet 3, a main control room 4 and a cleaning chamber 5. The cleaning chamber 5 is used to accommodate the movable trolley 2. The cabinet 3 is provided with a latching mechanism 6. The latching mechanism 6 is connected to the trolley 2 by a latching engagement. The latching mechanism 6 is electrically connected to the main control room 4.
[0041] The latching mechanism 6 includes a support 61 and a wedge 62. The wedge 62 is movably connected to the support 61. The support 61 is fixed on the cabinet 3. The trolley 2 is provided with a slot 21. The wedge 62 is inserted into the slot 21 for connection.
[0042] The support 61 is provided with a V-groove 66, and the wedge 62 is provided with a V-shaped platform 67. The V-groove 66 and the V-shaped platform 67 are slidably connected. The wedge 62 is provided with a handle 70, which extends to the outside of the cabinet 3. The support 61 is provided with a spring 68, the other end of which is fixedly connected to the wedge 62 to drive the wedge 62 to slide away from the support 61. The support 61 is provided with an electromagnet 69, the movable end of which is in contact with the wedge 62. The electromagnet 69 is electrically connected to the main control room 4. In this embodiment of the present invention, the trolley 2 is provided with a vertical groove, which corresponds to the position of the handle 70 on the wedge 62. When the device in this embodiment is in use, the trolley 2 is pushed into the cleaning chamber, and the wedge 62 moves downward under the action of the spring 68 to lock the trolley 2 and the cabinet 3. The electromagnet 69 is connected to the top of the wedge 62 to restrict the free movement of the wedge 62. After cleaning is completed, after a certain period of time, the electromagnet 69 opens, the wedge 62 can move up and down, and the trolley 2 can be pulled out from the cleaning chamber.
[0043] The trolley 2 includes a frame 22 and casters 23, and the frame 22 includes at least one bowl basket.
[0044] A sealing ring 24 is provided on the frame 22, and the sealing ring 24 is fitted and connected to the cabinet 3.
[0045] The main control room 4 is equipped with a microprocessor 41, which is connected to the electric cylinder 65 and electromagnet 69 of the latch mechanism 6 via a circuit, and is used to control the extension, retraction and locking of the latch mechanism 6.
[0046] The cleaning chamber 5 is equipped with a spray device 51, which is connected to the water source of the cleaning host 1 through a pipe. The nozzles 52 of the spray device 51 are distributed on the top and sides of the cleaning chamber 5.
[0047] The bottom of the cabinet 3 is provided with a drain outlet 31, which is connected to the bottom of the cleaning chamber 5 through a drain pipe. The drain pipe is provided with a drain valve 32, which is electrically connected to the main control room 4.
[0048] Of course, the above embodiments are not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A trolley type dishwasher, comprising a washing main machine (1) and a trolley (2), characterized in that: the washing main machine (1) comprises a cabinet (3), a main control chamber (4) and a washing chamber (5), the washing chamber (5) is used for accommodating the movable trolley (2), the cabinet (3) is provided with a latch mechanism (6), the latch mechanism (6) is connected with the trolley (2) in plug-in fit, and the latch mechanism (6) is electrically connected with the main control chamber (4).
2. The trolley type dishwasher according to claim 1, characterized in that: the latch mechanism (6) comprises a support (61) and a wedge block (62), the wedge block (62) is movably connected with the support (61), the support (61) is fixed on the cabinet (3), the trolley (2) is provided with a slot (21), and the wedge block (62) is connected with the slot (21) in plug-in fit.
3. The trolley type dishwasher according to claim 2, characterized in that: the support (61) is provided with a through hole (63), the wedge block (62) is provided with a shaft (64), the shaft (64) is slidably connected with the inner wall of the through hole (63), the support (61) is provided with an electric cylinder (65), the free end of the electric cylinder (65) is connected with the shaft (64) through a shaft coupling, and the electric cylinder (65) is electrically connected with the main control chamber (4).
4. The trolley type dishwasher according to claim 2, characterized in that: the support (61) is provided with a V-shaped groove (66), the wedge block (62) is provided with a V-shaped table (67), the V-shaped groove (66) and the V-shaped table (67) are slidably connected in fit, the wedge block (62) is provided with a handle (70), the handle (70) extends to the outside of the cabinet (3), the support (61) is provided with a spring (68), the other end of the spring (68) is fixedly connected with the wedge block (62), and the spring (68) is used for driving the wedge block (62) to slide away from the support (61), the support (61) is provided with an electromagnet (69), the movable end of the electromagnet (69) is abuttingly connected with the wedge block (62), and the electromagnet (69) is electrically connected with the main control chamber (4).
5. The trolley type dishwasher according to claim 1, characterized in that: the trolley (2) comprises a frame (22) and universal wheels (23), and the frame (22) comprises at least one bowl basket.
6. The trolley type dishwasher according to claim 5, characterized in that: the frame (22) is provided with a sealing ring (24), and the sealing ring (24) is attached to the cabinet (3).
7. The trolley type dishwasher according to claim 1, characterized in that: the main control chamber (4) is provided with a microprocessor (41), the microprocessor (41) is connected with the electric cylinder (65) and the electromagnet (69) of the latch mechanism (6) through an electric circuit, and is used for controlling the extension and locking of the latch mechanism (6).
8. The trolley type dishwasher according to claim 1, characterized in that: The cleaning chamber (5) is internally provided with a spraying device (51), the spraying device (51) is connected with the water source of the cleaning main machine (1) through a pipeline, and the nozzles (52) of the spraying device (51) are distributed on the upper and lower parts of the cleaning chamber (5).
9. The trolley type dish washing machine according to claim 1, characterized in that: The bottom of the cabinet (3) is provided with a drain port (31), the drain port (31) is connected with the bottom of the cleaning chamber (5) through a drain pipeline, a drain valve (32) is arranged on the drain pipeline, and the drain valve (32) is electrically connected with the main control chamber (4).
10. The trolley type dish washing machine according to claim 5, characterized in that: The trolley (2) is provided with a handle (25) on the frame (22), the handle (25) is located above the frame (22), and the trolley (2) is convenient for an operator to push.
Citation Information
Patent Citations
Novel dish washing machine
CN216797594U