A push-pull execution device and automatic garbage storage cabinet

Abstract

The present invention belongs to the technical field of actuators, and specifically relates to a push-pull actuator and an automatic garbage collection cabinet. The push-pull actuator includes a first rack, a second rack, a first elastic connector, a second elastic connector, a spur gear, and a driving device; the spur gear fixed axis can be rotatably arranged, the first rack and the second rack are parallel and slidably arranged on both sides of the spur gear, and the first rack and the second rack are respectively meshed with the spur gear; the first elastic connector is fixed at one end of the first rack, and the second elastic connector is fixed at one end of the second rack; the driving device can output a driving force to make the first rack and the second rack perform linear motion in opposite directions. The present invention further provides an automatic garbage collection cabinet. The push-pull actuator provided by the present invention has a simple and reasonable structure, has a very large tolerance and adaptability, and can drive a pair of moving parts to selectively open. The automatic garbage collection cabinet provided by the present invention is convenient and safe to use.

Description

Technical Field

[0001] The invention belongs to the technical field of actuators, and in particular relates to a push-pull actuator and an automatic garbage storage cabinet. Background Art

[0002] There are some paired devices that need to be selectively opened in production and life. For example, a classified trash can is embedded in the kitchen counter so that kitchen waste and other garbage can be separated and disposed of at will. In order to make the disposal of garbage easier and more convenient, an actuator that can drive the trash can body or door to open and close can be added, and even image recognition and artificial intelligence modules can be introduced to realize garbage type recognition and automatically open the corresponding trash can. However, the existing actuators are often complex in structure to perform selective opening actions, either requiring two sets of power units and two sets of transmission mechanisms, or requiring one set of power units, two sets of transmission mechanisms and at least one set of clutch mechanisms. In addition, conventional transmission mechanisms, such as connecting rod assemblies, have more parts and more active nodes, and the structure is more complex and the degree of freedom of movement is low. Complex structures often mean increased costs and decreased reliability, and lower degrees of freedom of movement often mean insufficient adaptability and tolerance. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a push-pull execution device and an automatic garbage storage cabinet.

[0004] The push-pull actuator provided by the present invention includes a first rack, a second rack, a first elastic connector, a second elastic connector, a spur gear, and a driving device; the fixed axis of the spur gear can be rotatably set, for example, the spur gear is set in a fixed position through a bearing; the first rack and the second rack are parallel and slidably set on both sides of the spur gear, for example, the first rack and the second rack are slidably set in a pair of slide grooves located on both sides of the spur gear, and the first rack and the second rack are respectively engaged with the spur gear; the first elastic connector is fixed at one end of the first rack, the second elastic connector is fixed at one end of the second rack, and the first elastic connector and the second elastic connector are located at the same end of the first rack and the second rack in the same direction; the driving device can output a driving force to act on the first rack, the second rack or the spur gear, so that the first rack and the second rack make linear motion in opposite directions.

[0005] The push-pull actuator provided by the present invention can drive a device with two moving parts, and is particularly suitable for driving a pair of moving parts that need to selectively perform opening or closing actions. The push-pull actuator can realize the function of two-choice driving with a very simple structure, and has great tolerance and strong adaptability. Specifically, the present invention only requires one power unit and two transmission mechanisms to achieve the corresponding functions; in addition, the driving end of the present invention that outputs power is an elastic connecting part. Since it is a non-rigid part, the driving end can undergo adaptive deformations such as expansion, contraction, bending, and torsion while outputting thrust or pulling force, so that it can be directly fixedly connected to the driven object, greatly simplifying the connection structure.

[0006] Furthermore, the driving device may take various forms. Two driving devices are provided below as examples, but are not limited to these two driving forms.

[0007] First, the driving device includes a motor, such as a reduction motor integrated with a reduction gearbox. The motor is fixedly arranged, and the output shaft of the motor is dynamically connected to the spur gear, thereby driving the spur gear to rotate.

[0008] Secondly, the driving device includes a motor, a crank fixed on the motor output shaft, and a connecting sleeve fixed on the first rack; the connecting sleeve is provided with a long slot that is substantially perpendicular to the first rack; the crank is provided with a boss that deviates from the motor output shaft; the boss is embedded in the slot. When the motor drives the crank to rotate, the boss on the crank slides in the slot and pushes the first rack to move linearly. An important advantage of this driving device is that the rack will approach its limit position in a gradually decelerating manner, making the operation smoother.

[0009] Furthermore, the inner surface of the slide groove and the outer surface of the protrusion are both smooth surfaces, and the inner surface of the slide groove and the outer surface of the protrusion are coated with lubricating liquid or grease.

[0010] Furthermore, the first elastic connecting member and the second elastic connecting member are preferably both coil springs.

[0011] Based on the above-mentioned push-pull actuator, the present invention also provides an automatic garbage storage cabinet, including a cabinet body and a first storage box and a second storage box embedded in the cabinet body, and also including the above-mentioned push-pull actuator; a accommodating chamber is formed inside the cabinet body, and a cabinet panel is provided on the front of the cabinet body, and an opening matching the first storage box and the second storage box is provided on the cabinet panel; the first storage box includes a first box panel and a first box body fixed to the rear side of the first box panel; the first box body has an opening at the top; the lower edge of the first box panel is hinged to the cabinet body; similarly, the second storage box includes a second box panel and a second box body fixed to the rear side of the second box panel; the second box body has an opening at the top; the lower edge of the second box panel is hinged to the cabinet body; the push-pull actuator is installed in the cabinet body, the first elastic connecting member is connected to the first storage box, and the second elastic connecting member is connected to the second storage box.

[0012] When the first storage box needs to be selectively opened, the first rack is pushed out by the driving device, and the first storage box is pushed open through the transition of the elastic connector. At the same time, the second rack moves in the opposite direction, the second elastic connector is stretched, and the second storage box is still in a closed state. Similarly, the second storage box can also be selectively opened. Since the elastic connector has a deformable characteristic, the end of the elastic connector can be directly fixed to the storage box, for example, welded to the box panel, without the need for a complex connecting rod connection structure to adapt to the movement law of the hinged opening of the storage box.

[0013] Furthermore, the relative positional relationship between the push-pull actuator and the storage box is preferably in the following two ways.

[0014] Mode 1: When the first storage box and the second storage box are both in a closed state, the first elastic connector and the second elastic connector are both in a free state without being stretched or compressed.

[0015] Method 2: When the first storage box and the second storage box are both in a closed state, the first elastic connector and the second elastic connector are both in a slightly stretched state. The advantage of this method is that when the storage box is in a closed state, it can still be subjected to the tension from the elastic member, so that the storage box is closed more tightly, thereby improving the sealing performance and preventing the smell in the storage box from being emitted outward.

[0016] To further improve the sealing performance, a first elastic sealing pad is provided at the position where the inner side of the first box panel is pressed against the cabinet panel, and a second elastic sealing pad is provided at the position where the inner side of the second box panel is pressed against the cabinet panel.

[0017] Beneficial effects: Compared with the prior art, the push-pull actuator provided by the present invention has a simple and reasonable structure, a very large tolerance and adaptability, and can drive a pair of moving parts to selectively open. The automatic garbage storage cabinet provided by the present invention has a simple overall structure, and its pair of storage boxes can be selectively opened and closed, and the opening and closing processes are flexible processes, which are not easy to hit or pinch the user; in addition, the automatic garbage storage cabinet also has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 and 2 This is a schematic diagram of the structure of the push-pull actuator of Example 1.

[0019] Figure 3 , 4 5 is a schematic diagram of the structure of the push-pull actuator of Example 2.

[0020] Figure 6 for Figure 4 A partial enlarged view of .

[0021] Figure 7 It is a stereoscopic schematic diagram of embodiments 3 and 4.

[0022] Figure 8 Schematic diagram of the storage box structure in Examples 3 and 4.

[0023] Fig. 9 This is a schematic diagram of the internal structure of Example 3.

[0024] Fig.10 , 11 Schematic diagram of the internal structure of Example 4. DETAILED DESCRIPTION

[0025] The present invention is further illustrated by the following examples, which are intended to more clearly illustrate the technical solution of the present invention and should not be construed as a limitation.

[0026] Example 1

[0027] A push-pull actuator, such as Figure 1 and 2As shown, it includes a first rack 11, a second rack 12, a first elastic connector 13, a second elastic connector 14, a spur gear 15, and a driving device 16; the spur gear 15 is rotatably arranged on a fixed axis; the first rack 11 and the second rack 12 are slidably arranged on both sides of the spur gear 15 in parallel, and each is engaged with the spur gear 15; the first elastic connector 13 is fixed at one end of the first rack 11, the second elastic connector 14 is fixed at one end of the second rack 12, and the first elastic connector 13 and the second elastic connector 14 are located at the ends of the first rack 11 and the second rack 12 in the same direction; the driving device 16 is a motor, and the output shaft of the motor is connected to the spur gear 15 for power, thereby driving the spur gear 15 to rotate, so that the first rack 11 and the second rack 12 make linear motion in opposite directions.

[0028] In this embodiment, the first elastic connecting member 13 and the second elastic connecting member 14 are both coil springs.

[0029] Example 2

[0030] A push-pull actuator, such as Figures 3 to 6 As shown, it includes a first rack 11, a second rack 12, a first elastic connector 13, a second elastic connector 14, a spur gear 15, and a driving device 16; the spur gear 15 is rotatably arranged on a fixed axis; the first rack 11 and the second rack 12 are slidably arranged on both sides of the spur gear 15 in parallel, and each is meshed with the spur gear 15; the first elastic connector 13 is fixed at one end of the first rack 11, the second elastic connector 14 is fixed at one end of the second rack 12, and the first elastic connector 13 and the second elastic connector 14 are located at the ends of the first rack 11 and the second rack 12 in the same direction; the driving device 16 includes a motor, and also includes a crank 161 fixed on the output shaft of the motor and a connecting sleeve 162 fixed on the first rack 11; a long strip-shaped slide groove 1621 is provided on the connecting sleeve 162 and is substantially perpendicular to the first rack 11; a convex column 1611 deviating from the output shaft of the motor is provided on the crank 161; the convex column 1611 is embedded in the slide groove 1621.

[0031] In this embodiment, the inner surface of the slide groove 1621 and the outer surface of the protruding column 1611 are both smooth surfaces, and the inner surface of the slide groove 1621 and the outer surface of the protruding column 1611 are both coated with lubricating liquid or grease.

[0032] In this embodiment, the first elastic connecting member 13 and the second elastic connecting member 14 are both coil springs.

[0033] Example 3

[0034] An automatic garbage collection cabinet, such as Figure 7 , 8, 9, comprising a cabinet 2 and a first storage box 3 and a second storage box 4 embedded in the cabinet 2, and also comprising the push-pull execution device provided in Example 1, such as Figure 1 , 2 shown.

[0035] A accommodating chamber is formed inside the cabinet 2, and a cabinet panel 21 is provided on the front side of the cabinet 2, and an opening matching the first storage box 3 and the second storage box 4 is provided on the cabinet panel 21; the first storage box 3 includes a first box panel 31 and a first box body 32 fixed to the rear side of the first box panel 31; the first box body 32 has an opening at the top; the lower edge of the first box panel 31 is hinged to the cabinet 2; the second storage box 4 includes a second box panel 41 and a second box body 42 fixed to the rear side of the second box panel 41; the second box body 42 has an opening at the top; the lower edge of the second box panel 41 is hinged to the cabinet 2; the push-pull actuator is installed in the cabinet 2, the first elastic connector 13 is connected to the first storage box 3, and the second elastic connector 14 is connected to the second storage box 4.

[0036] In this embodiment, when the first storage box 3 and the second storage box 4 are both in the closed state, the first elastic connector 13 and the second elastic connector 14 are both in a free state without being stretched or compressed.

[0037] Example 4

[0038] An automatic garbage collection cabinet, such as Figure 7 , 8 , 10, 11, including a cabinet 2 and a first storage box 3 and a second storage box 4 embedded in the cabinet 2, and also including the push-pull execution device provided in Example 2, such as Figures 3 to 6 shown.

[0039] A accommodating chamber is formed inside the cabinet 2, and a cabinet panel 21 is provided on the front side of the cabinet 2, and an opening matching the first storage box 3 and the second storage box 4 is provided on the cabinet panel 21; the first storage box 3 includes a first box panel 31 and a first box body 32 fixed to the rear side of the first box panel 31; the first box body 32 has an opening at the top; the lower edge of the first box panel 31 is hinged to the cabinet 2; the second storage box 4 includes a second box panel 41 and a second box body 42 fixed to the rear side of the second box panel 41; the second box body 42 has an opening at the top; the lower edge of the second box panel 41 is hinged to the cabinet 2; the push-pull actuator is installed in the cabinet 2, the first elastic connector 13 is connected to the first storage box 3, and the second elastic connector 14 is connected to the second storage box 4.

[0040] In this embodiment, when the first storage box 3 and the second storage box 4 are both in the closed state, the first elastic connector 13 and the second elastic connector 14 are both in the stretched state.

[0041] In this embodiment, a first elastic sealing pad 33 is provided at the inner side of the first box panel 31 where it is pressed against the cabinet panel 21 ; a second elastic sealing pad 43 is provided at the inner side of the second box panel 41 where it is pressed against the cabinet panel 21 .

[0042] Obviously, the above embodiments are exemplary and are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments, other embodiments that can be obtained by ordinary technicians in this field without creative work should also fall within the scope of protection of the present invention.

Claims

1. An automatic garbage storage cabinet, Features: It comprises a cabinet body (2), a first storage box (3) and a second storage box (4) embedded in the cabinet body (2), and also comprises a push-pull execution device; The push-pull actuator comprises a first rack (11), a second rack (12), a spur gear (15), and a driving device (16); the spur gear (15) is rotatably arranged on a fixed axis; the first rack (11) and the second rack (12) are slidably arranged in parallel in a slide groove located on both sides of the spur gear (15), and each is meshed with the spur gear (15); the driving device (16) can output a driving force to act on the first rack (11), the second rack (12) or the spur gear (15), so that the first rack (11) and the second rack (12) perform linear motion in opposite directions; and further comprises a first elastic connecting member (13) and a second elastic connecting member (14); the first elastic connecting member (13) is fixed to one end of the first rack (11), the second elastic connecting member (14) is fixed to one end of the second rack (12), and the first elastic connecting member (13) and the second elastic connecting member (14) are located at the same end of the first rack (11) and the second rack (12); The cabinet (2) forms a storage chamber inside, the cabinet (2) is provided with a cabinet panel (21) on the front side, and the cabinet panel (21) is provided with openings matching the first storage box (3) and the second storage box (4); the first storage box (3) comprises a first box panel (31) and a first box body (32) fixed to the rear side of the first box panel (31); the first box body (32) is open at the top; the lower edge of the first box panel (31) is hinged to the cabinet (2); the second storage box (4) comprises a second box panel (41) and a second box body (42) fixed to the rear side of the second box panel (41); the second box body (42) is open at the top; the lower edge of the second box panel (41) is hinged to the cabinet (2); the push-pull actuator is installed in the cabinet (2), the first elastic connecting member (13) is connected to the first storage box (3), and the second elastic connecting member (14) is connected to the second storage box (4); When the first storage box (3) and the second storage box (4) are both in a closed state, the first elastic connecting member (13) and the second elastic connecting member (14) are both in a stretched state, or are both in a free state with neither stretching nor compression; When it is necessary to selectively open the first storage box (3), the driving device (16) causes the first rack to push out (11), and the first storage box (3) is pushed open via the first elastic connecting member (13). At the same time, the second rack (12) moves in the opposite direction, the second elastic connecting member (14) is stretched, and the second storage box (4) remains in a closed state. Similarly, the second storage box (4) can be selectively opened.

2. The automatic garbage storage cabinet according to claim 1, Features: The driving device (16) comprises a motor, the output shaft of which is power-connected to the spur gear (15), thereby driving the spur gear (15) to rotate.

3. The automatic garbage storage cabinet according to claim 1, Features: The driving device (16) comprises a motor, a crank (161) fixed on the motor output shaft, and a connecting sleeve (162) fixed on the first rack (11); the connecting sleeve (162) is provided with a long strip-shaped slide groove (1621) which is substantially perpendicular to the first rack (11); the crank (161) is provided with a convex column (1611) which deviates from the motor output shaft; and the convex column (1611) is embedded in the slide groove (1621).

4. The automatic garbage storage cabinet according to claim 3, Features: The inner surface of the slide groove (1621) and the outer surface of the boss (1611) are both smooth surfaces, and the inner surface of the slide groove (1621) and the outer surface of the boss (1611) are both coated with lubricating liquid or grease.

5. The automatic garbage storage cabinet according to claim 1, Features: The first elastic connecting member (13) and the second elastic connecting member (14) are both coil springs.

6. The automatic garbage storage cabinet according to claim 1, Features: A first elastic sealing pad (33) is also provided at a location where the first box panel (31) is pressed against the cabinet panel (21); and a second elastic sealing pad (43) is also provided at a location where the second box panel (41) is pressed against the cabinet panel (21).

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