Electric push rod device and water supply tank assembly with same

Abstract

The utility model discloses an electric push rod device and a water supply tank assembly with the same. The electric push rod device comprises a motor, a mounting frame, a top cylinder and a reciprocating screw rod, the motor is used for driving the reciprocating screw to unidirectionally rotate; the reciprocating screw rod is provided with two thread grooves which are the same in thread pitch and opposite in rotation direction, and the two ends of the two thread grooves are connected through a transition curve. And an embedding structure matched with the threaded groove is arranged on the inner wall of the top cylinder, so that the top cylinder can reciprocate in the axial direction of the reciprocating screw rod in the rotating process of the reciprocating screw rod so as to be circularly switched between an extension state and a contraction state. The top cylinder is driven by the reciprocating lead screw to stretch out and draw back in a reciprocating mode, and therefore the water supply tank can be conveniently pushed out of the installation groove piece through the electric push rod device.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen electrical appliances, in particular to an electric push rod device and a water tank assembly having the device. Background Art

[0002] Steamers and ovens are common kitchen appliances that use high-temperature steam to cook food. They can quickly steam dishes, rice, soup, and other dishes, while also providing precise temperature control, nutrient retention, lipid and salt reduction, and preservation of food's original flavor and umami. The water supply tank assembly is a crucial component of these devices, providing the water they need to operate. Existing water supply tank assemblies typically consist of a mounting trough and a water supply tank that slides and retracts within the trough. These assemblies are often manually pulled out by the operator, lacking an automatic ejector mechanism, resulting in a poor user experience. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, the present invention provides an electric push rod device with a simple and reasonable structure. The unidirectional rotation of the reciprocating screw driven by the motor can realize the cyclic reciprocating extension and contraction of the top cylinder, thereby facilitating the pushing of the water tank out of the installation groove. A water tank assembly is also provided, which has all the advantages of the above-mentioned electric push rod and can greatly improve user experience.

[0004] To achieve the above object, the utility model provides an electric push rod device, comprising a motor, a mounting frame, a top cylinder mounted on the mounting frame in a directionally sliding manner, and a reciprocating screw inserted in the top cylinder;

[0005] Wherein, the motor is mounted on the mounting frame and is used to drive the reciprocating screw to rotate in one direction;

[0006] The reciprocating screw is provided with two thread grooves with the same pitch and opposite rotation directions, and the two ends of the two thread grooves are connected by a transition curve;

[0007] The inner wall of the top cylinder is provided with an interlocking structure that cooperates with the thread groove, so that the top cylinder can reciprocate along the axial direction of the reciprocating screw during the rotation of the reciprocating screw to cyclically switch between the extended state and the contracted state.

[0008] It is further configured to include: a control panel and a micro switch;

[0009] The micro switch is mounted on the mounting bracket and is configured to be touched to generate a shutdown signal when the top cylinder is retracted to a contracted state;

[0010] The control board is connected to the motor and the micro switch by signals. The control board is used to control the motor to start by receiving an external start signal and to control the motor to stop by receiving a stop signal from the micro switch.

[0011] It is further configured as follows: the interlocking structure includes at least one mating piece rotatably connected to the inner wall of the top cylinder, the mating piece includes an arcuate surface embedded in the thread groove, and the arcuate surface can adapt and move along the thread groove by rotating when the reciprocating screw rotates.

[0012] It is further configured as follows: a guide protrusion structure is provided on at least one side of the top cylinder in the radial direction; the mounting frame structure is provided with a sliding cavity for the top cylinder to be embedded and slid; a guide groove matching the guide protrusion is constructed in the sliding cavity.

[0013] The present utility model also provides a water supply tank assembly, including a mounting groove, a water supply tank, and an electric push rod device. The water supply tank can be pulled out and slidably installed in the mounting groove. The electric push rod device is installed on the rear side of the mounting groove and the top tube of the electric push rod device can extend into the mounting groove during the extension process to push the water supply tank out.

[0014] It is further configured that: the bottom structure of the water supply tank corresponding to the rear end thereof is provided with a sliding opening connected to the rear wall, and a rack structure is provided on one side wall of the sliding opening;

[0015] A rotary damper is correspondingly mounted on the bottom wall of the mounting groove. The rotary damper comprises a gear which can extend into the sliding opening and mesh with the rack structure.

[0016] It is further configured that: the rack structure has a movable tooth segment at its rear end portion, and the movable tooth segment can move outward to separate from the rack structure when under pressure.

[0017] It is further configured as follows: a concave cavity is provided on the side of the sliding port having a rack structure corresponding to the bottom of the water supply tank, the concave cavity is connected to the sliding port through a connecting port, a deflecting member is rotatably provided in the concave cavity, and a torsion spring is provided so that the deflecting member always deflects toward the sliding port, the movable tooth segment is provided on a side wall of the deflecting member facing the sliding port and the movable tooth segment can pass through the connecting port and engage at the end of the rack structure under the action of the torsion spring.

[0018] It is further configured as follows: the water supply tank is provided with a positioning notch extending forward corresponding to its rear wall, and a positioning piece matching the positioning notch is fixedly connected to the rear wall of the mounting slot.

[0019] It is further configured that: a magnetic attraction component for attraction is provided between the facing end surfaces of the positioning piece and the positioning notch.

[0020] Compared with the prior art, the utility model has a simple and reasonable structure. The cyclic reciprocating extension and retraction of the top cylinder can be achieved by driving the reciprocating screw rod to rotate unidirectionally through a motor, and the motor can be controlled to stop by cooperating with a micro switch, so that the top cylinder can be extended and retracted once to push out the water tank; at the same time, the mounting groove and the water tank are matched through a rotary damper and a sliding structure with a rack, so that the insertion and ejection process of the water tank can be smoother; furthermore, the rack has a movable tooth segment corresponding to its rear end, so that the gear of the rotary damper can slide in and out more smoothly, effectively reducing abnormal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural diagram of a water tank assembly of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the installation slot;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the water tank (bottom);

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the electric push rod device;

[0025] Figure 5 It is a schematic diagram of the axial cross-sectional structure of the electric push rod device;

[0026] Figure 6 It is a schematic diagram of the separation structure of the electric push rod device;

[0027] Figure 7 It is a signal connection diagram of the internal components of the electric push rod device.

[0028] The following reference numerals are marked on the accompanying drawings:

[0029] 100. Mounting groove; 110. Rotary damper; 111. Gear; 120. Positioning member; 130. Pass; 200. Water tank; 210. Slide; 211. Rack; 220. Positioning groove; 230. Concave cavity; 240. Deflection member; 241. Movable tooth segment; 250. Torsion spring; 300. Electric push rod device; 310. Control panel; 320. Motor; 321. Driving wheel; 330. Micro switch; 340. Mounting frame; 341. Sliding cavity; 350. Top cylinder; 351. Fitting member; 352. Guide protrusion; 360. Reciprocating screw; 361. Threaded groove; 362. Driven wheel. DETAILED DESCRIPTION

[0030] A specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0031] The utility model provides a water tank component such as Figure 1 As shown, it is mainly arranged on an electric steamer or a steam oven to supply water required for work, and includes a mounting groove 100, a water supply tank 200 and an electric push rod device 300; wherein the mounting groove 100 is fixedly arranged on the electric steamer or the steam oven, the water supply tank 200 can be pulled and slidably installed in the mounting groove 100, and the electric push rod device 300 is installed on the rear side of the mounting groove 100 and the electric push rod device 300 can extend into the mounting groove 100 after receiving a start command to push the water supply tank 200 out of the mounting groove 100.

[0032] In this embodiment, if Figure 2 and Figure 3 As shown, the bottom structure of the water supply tank 200 corresponding to its rear end is provided with a sliding port 210 that is in communication with the rear wall, and a rack 211 structure is provided on one side wall of the sliding port 210; a rotary damper 110 is fixedly installed at the rear end of the bottom wall of the mounting groove 100, and the rotary damper 110 has a gear 111 that can extend into the sliding port 210 and mesh with the rack 211 structure; that is, when the water supply tank 200 is installed, the rotary damper 110 The gear 111 is directly opposite to the slide 210 of the water tank 200. In this way, when the water tank 200 is pushed into the installation groove 100, the gear 111 of the rotary damper 110 can be stuck in the slide 210 of the water tank 200 and engage with the rack 211. In this way, the cooperation between the rotary damper 110 and the slide 210 can make the operation of installing the water tank 200 into the installation groove 100 or pushing the water tank 200 out of the installation groove 100 smoother.

[0033] In the above scheme, preferably, the rack 211 structure has a movable tooth segment 241 corresponding to its rear end (end), and the movable tooth segment 241 can move outward under pressure to separate from the rack 211 structure, so that the gear 111 can slide into or out of the sliding port 210, effectively reducing noise; Specifically, the bottom of the water tank 200 is provided with a cavity 230 on one side of the rack 211 corresponding to the sliding port 210, and the cavity 230 is in contact with the sliding port 210. 10 are connected through a connecting port, and a deflecting member 240 is rotatably provided in the concave cavity 230, as well as a torsion spring 250 that enables the deflecting member 240 to always have a movement tendency to deflect toward one side of the sliding port 210 (inward), and a movable tooth segment 241 is correspondingly provided on a side wall of the deflecting member 240 facing the sliding port 210. Under the action of the torsion spring 250, the movable tooth segment 241 on the deflecting member 240 can pass through the connecting port and engage with the end of the rack 211 structure.

[0034] In this embodiment, if Figure 2 and Figure 3As shown, the water tank 200 is provided with a positioning slot 220 extending forward corresponding to its rear wall, and a positioning member 120 that cooperates with the positioning slot 220 is fixedly connected to the rear wall of the installation slot 100, so that the installation stability of the water tank 200 can be effectively improved through the cooperation between the positioning slot 220 and the positioning member 120; preferably, a magnetic attraction component for attraction is provided between the end faces facing each other of the positioning slot 220 and the positioning member 120, that is, a magnet is provided on the front end face of the positioning member 120, and a magnet or iron sheet that attracts the magnet is provided on the front inner wall of the positioning slot 220; the positioning member 120 is preferably spring-loaded, and the spring-loaded collision can help the water tank 200 to slide out.

[0035] In this embodiment, if Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, the electric push rod device 300 includes a control panel 310, a motor 320, a micro switch 330, a mounting frame 340, a top cylinder 350 and a reciprocating screw 360; wherein, the front end of the mounting frame 340 is fixedly mounted on the rear wall of the mounting groove 100, and the fixed cylinder is mounted on the mounting frame 340 for longitudinal directional sliding. Specifically, the top cylinder 350 is provided with a guide protrusion 352 corresponding to at least one side of its radial direction, and the mounting frame 340 is provided with a sliding cavity 341 for the fixed cylinder to be integrally embedded and slid. 1 is provided with a guide groove that cooperates with the guide protrusion 352 for sliding. In this way, the sliding cavity 341 can ensure the longitudinal sliding of the top cylinder 350 and prevent rotation. The rear wall of the mounting groove 100 is correspondingly provided with a through hole 130 for the top cylinder 350 to extend into. The reciprocating screw 360 is inserted into the top cylinder 350. The reciprocating screw 360 is provided with two thread grooves 361 with the same pitch and opposite rotation direction, and the two ends of the two thread grooves 361 are connected by a transition curve. The top cylinder 350 is provided with a thread groove The interlocking structure 361 cooperates with each other, so that the top cylinder 350 can reciprocate along the axial direction of the reciprocating screw 360 during the rotation of the reciprocating screw 360 to cyclically switch between the extended state and the contracted state; the motor 320 is fixedly mounted on the lower wall of the rear end of the mounting bracket 340 to drive the reciprocating screw 360 to rotate in one direction. Specifically: the mounting bracket 340 is provided with a transmission box structure corresponding to its rear end structure, the output shaft of the motor 320 extends into the transmission box and is provided with a driving wheel 321, and the rear end of the reciprocating screw 360 It extends into the transmission box and is fitted with a driven wheel 362 that meshes with the driving wheel 321; the micro switch 330 is fixedly mounted on the mounting bracket 340 and the micro switch 330 is constructed so that it can be touched to generate a shutdown signal when the top cylinder 350 retracts to a contracted state; the control board 310 is signal-connected to the motor 320 and the micro switch 330, and the control board 310 is used to control the start of the motor 320 by receiving an external start signal and to control the shutdown of the motor 320 by receiving a shutdown signal from the micro switch 330.

[0036] In this embodiment, the interlocking structure on the top cylinder 350 includes at least one mating part 351 rotatably connected to the inner wall, and the mating part 351 includes an arcuate portion embedded in the thread groove 361 and adapted to the outer wall of the reciprocating screw 360. When the reciprocating screw 360 rotates, the arcuate portion can adapt through a fixed-point rotation and move along the thread groove 361 to realize the axial reciprocating motion of the top cylinder 350 extending the reciprocating screw 360.

[0037] In this embodiment, specifically: guide protrusions 352 are provided on both lateral sides of the rear end of the top tube 350, and the micro switch 330 is installed at the rear end of the mounting bracket 340, so that the guide protrusions 352 of the top tube 350 can touch the micro switch 330 when retracted to the storage state, so that the micro switch 330 generates a shutdown signal.

[0038] Compared with the prior art, the utility model has a simple and reasonable structure. The cyclic reciprocating extension and retraction of the top cylinder can be achieved by driving the reciprocating screw rod to rotate unidirectionally through a motor, and the motor can be controlled to stop by cooperating with a micro switch, so that the top cylinder can be extended and retracted once to push out the water tank; at the same time, the mounting groove and the water tank are matched through a rotary damper and a sliding structure with a rack, so that the insertion and ejection process of the water tank can be smoother; furthermore, the rack has a movable tooth segment corresponding to its rear end, so that the gear of the rotary damper can slide in and out more smoothly, effectively reducing abnormal noise.

[0039] The above disclosure is only an embodiment of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An electric push rod device, characterized in that: It includes a motor, a mounting frame, a top cylinder which is mounted on the mounting frame in a directionally sliding manner, and a reciprocating screw rod which is inserted into the top cylinder; Wherein, the motor is mounted on the mounting frame and is used to drive the reciprocating screw to rotate in one direction; The reciprocating screw is provided with two thread grooves with the same pitch and opposite rotation directions, and the two ends of the two thread grooves are connected by a transition curve; The inner wall of the top cylinder is provided with an interlocking structure that cooperates with the thread groove, so that the top cylinder can reciprocate along the axial direction of the reciprocating screw during the rotation of the reciprocating screw to cyclically switch between the extended state and the contracted state.

2. The electric push rod device according to claim 1, characterized in that: Also includes control board and micro switches; The micro switch is mounted on the mounting bracket and is configured to be touched to generate a shutdown signal when the top cylinder is retracted to a contracted state; The control board is connected to the motor and the micro switch by signals. The control board is used to control the motor to start by receiving an external start signal and to control the motor to stop by receiving a stop signal from the micro switch.

3. The electric push rod device according to claim 1, characterized in that: The interlocking structure includes at least one mating piece rotatably connected to the inner wall of the top cylinder, and the mating piece includes an arcuate portion embedded in the thread groove. When the reciprocating screw rotates, the arcuate portion can adapt and move along the thread groove by rotating.

4. The electric push rod device according to claim 1, characterized in that: At least one side of the top cylinder in the radial direction is provided with a guide protrusion structure, and the mounting frame structure is provided with a sliding cavity for the top cylinder to be embedded and slid, and a guide groove matching the guide protrusion is constructed in the sliding cavity.

5. A water tank assembly, characterized in that: It includes a mounting groove, a water supply tank, and the electric push rod device described in any one of claims 1 to 4 above, wherein the water supply tank can be pulled out and slidably installed in the mounting groove, the electric push rod device is installed on the rear side of the mounting groove and the top tube of the electric push rod device can extend into the mounting groove during the extension process to push the water supply tank out.

6. A water tank assembly according to claim 5, characterized in that: The bottom structure of the water supply tank corresponding to the rear end thereof is provided with a sliding opening communicating with the rear wall, and a rack structure is provided on one side wall of the sliding opening; A rotary damper is correspondingly mounted on the bottom wall of the mounting groove. The rotary damper comprises a gear which can extend into the sliding opening and mesh with the rack structure.

7. A water tank assembly according to claim 6, characterized in that: The rack structure has a movable tooth segment at its rear end portion. The movable tooth segment can move outwards to separate from the rack structure when under pressure.

8. A water tank assembly according to claim 7, characterized in that: A concave cavity is provided on the side of the rack structure corresponding to the sliding port at the bottom of the water supply tank, and the concave cavity is connected to the sliding port through a connecting port. A deflection member is provided in the concave cavity so as to be deflected, and a torsion spring is provided so that the deflection member always deflects toward the sliding port. The movable tooth segment is provided on a side wall of the deflection member facing the sliding port, and the movable tooth segment can pass through the connecting port and engage with the end of the rack structure under the action of the torsion spring.

9. The water tank assembly according to claim 5, characterized in that: The water supply tank is provided with a positioning notch extending forward corresponding to its rear wall, and a positioning piece matching the positioning notch is fixedly connected to the rear wall of the mounting slot.

10. A water tank assembly according to claim 9, characterized in that: A magnetic attraction component for attraction is provided between the facing end surfaces of the positioning piece and the positioning notch.

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