An anti-pinch device for intelligent garbage bin cover

Abstract

The present invention relates to the field of intelligent garbage bins, and specifically discloses an anti-pinch device for the cover of an intelligent garbage bin, comprising an outer garbage box, an inner box bracket, and a cover plate. The upper surface of the inner box bracket is provided with a slide groove, a bottom plate is installed inside the slide groove, a push rod sleeve is installed on the inner side of the pin shaft base, spring seats are installed on both sides of the push rod sleeve located on the inner side of the pin shaft base, and a switch conductive sheet is installed below the spring seat. When a foreign object blocks the cover plate, when the push rod sleeve swings in the pin shaft base, it will control the squeezing and rebounding of the spring seat, and the push rod sleeve will squeeze the spring seat, and the spring seat rotates with the bottom plate through a rotating shaft by pressing the switch conductive sheet, disconnecting the electrical path between the switch conductive sheet and the circuit board, and the telescopic push rod stops moving, realizing the effect of stopping the cover closing. After the central control receives the circuit-breaking signal, the electric telescopic rod is controlled to stop shrinking, thereby achieving the purpose of anti-pinch.

Description

Technical Field

[0001] The invention relates to the field of intelligent garbage bins, in particular to a hand pinching prevention device for an intelligent garbage bin cover. Background Art

[0002] The operating environment of trash cans is relatively special and the environmental pollution is serious. Smart trash cans usually have certain sensors installed inside. The dumping of garbage may have a relatively serious impact on the sensors, resulting in large data transmission errors of related sensors. The equipment cannot independently detect foreign objects between the lid and the main frame of the trash can, and traditional trash cans do not have anti-pinch finger settings, which can easily lead to accidents. If the lid suddenly closes when a person's hand is here, it will hurt the hand. At the same time, if other foreign objects are left between the lid and the main frame of the trash can, when the lid falls, due to the control mode of the electric telescopic rod, the electric device will be overloaded, causing the equipment to burn out and related equipment to generate a large amount of heat, which will have a certain probability of causing a fire accident. Summary of the invention

[0003] In view of the existing problems, the present invention provides a hand-pinch prevention device for an intelligent trash bin cover, and the device components can be used together to effectively solve the problems raised in the background technology.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] The utility model discloses an anti-pinch device for the cover of an intelligent garbage bin, comprising an outer garbage box body, an inner box bracket and a cover plate, wherein the upper surface of the inner box bracket is provided with a slide groove, the interior of the slide groove is provided with a bottom plate, the upper end of the bottom plate is provided with a pin shaft base, the inner side of the pin shaft base is provided with a push rod sleeve, an electric telescopic push rod is connected between the push rod sleeve and the cover plate, spring seats are provided on both sides of the push rod sleeve located on the inner side of the pin shaft base, circuit boards are provided on both sides of the spring seat, a switch conductive sheet is provided below the spring seat, a rotating shaft is provided between the switch conductive sheet and the pin shaft base, a top column is provided on the lower surface of the cover plate, a top column through hole is provided on the upper surface of the outer garbage box body just below the top column, a buffer air bag is provided inside the outer garbage box body below the top column through hole, and diversion air bags are provided on both side sections of the buffer air bag.

[0006] As a further solution of the present invention: a push rod swing groove is provided on the outer side of the electric telescopic push rod, which is located on the upper surface of the garbage outer box body, and an ear plate is connected between the electric telescopic push rod and the cover plate.

[0007] As a further solution of the present invention: a limit switch is installed on the outer side wall of the push rod sleeve, and a magnetic ring is installed on the lower end of the electric telescopic push rod located inside the push rod sleeve.

[0008] As a further solution of the present invention: an identification frame is installed on the upper surface of the garbage outer box, and the identification frame is used for controlling the operation of the circuit using biometric identification technology or radio frequency identification technology.

[0009] As a further solution of the present invention: the buffer airbag is connected to the diverter airbag, and the elastic modulus of the diverter airbag is greater than the elastic modulus of the buffer airbag.

[0010] As a further solution of the present invention: the switch conductive sheet is rotatably connected to the pin shaft base via the rotating shaft, and the push rod sleeve is rotatably connected to the pin shaft base.

[0011] As a further solution of the present invention: the electric telescopic push rod is rotatably connected to the ear plate, and the push rod swing groove is a waist-shaped through-hole structure.

[0012] As a further solution of the present invention: the limit switch can generate a magnetic field to be magnetically connected to the magnetic ring.

[0013] As a further solution of the present invention: the top column through-hole is connected with the garbage outer box body, and the bottom plate is slidably connected with the push rod swing groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The cushioning airbag and the diverter airbag are integrated into one piece, and the gas filled inside the two can be used for cushioning and shock absorption, which can slow down the closing process of the cover to a certain extent, thereby reducing the damage of the cover to human hands in unexpected situations.

[0016] 2. The elastic modulus of the diverter airbag is set greater than that of the buffer airbag. Under normal circumstances, the buffer airbag is filled with more gas than the diverter airbag. When the buffer airbag is compressed, the internal gas will move to the inside of the diverter airbag, thereby completing the buffering effect during the falling process of the cover plate. At the same time, it can facilitate the resetting of the buffer airbag after the pressure of the top column is disconnected.

[0017] 3. When foreign objects block the cover plate, when the push rod sleeve swings in the pin shaft base, it will control the squeezing and rebound of the spring seat. When the cover is closed, the push rod sleeve squeezes the spring seat, and the spring seat rotates with the bottom plate through the rotating shaft by pressing the switch conductive sheet. The electrical path between the switch conductive sheet and the circuit board is disconnected, so that the telescopic push rod stops moving inside the push rod sleeve, and the cover is stopped. After the central control receives the circuit breaker signal, it controls the electric telescopic rod to stop shrinking, so as to achieve the purpose of preventing fingers from being pinched.

[0018] 4. The limit switch can generate a magnetic field and magnetically connect with the magnetic ring. Once the magnetic ring moves to the position of the limit switch, the limit switch will adsorb the magnetic ring to the inner wall of the push rod sleeve, causing the electric telescopic push rod to stop working and prevent the cover from continuing to open upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a finger pinching prevention device for a smart trash can cover;

[0020] Figure 2 It is a structural schematic diagram of an anti-pinch mechanism in an anti-pinch device for a smart trash bin cover;

[0021] Figure 3 A cross-sectional view of the outer garbage box body in a hand-pinch prevention device of an intelligent garbage bin cover;

[0022] Figure 4 The figure is a schematic diagram of the installation of a bottom plate in a finger-pinch prevention device of an intelligent trash can cover;

[0023] Figure 5 It is a structural schematic diagram of a push rod sleeve in a finger pinch prevention device of an intelligent trash can cover;

[0024] Figure 6 It is a structural schematic diagram of a push rod sleeve and an anti-pinch mechanism in an anti-pinch device for a smart trash can cover;

[0025] Figure 7 The present invention is a schematic diagram of the partial cross-sectional structure of the outer garbage box body in an anti-pinch device of an intelligent garbage bin cover.

[0026] In the figure: 1. Garbage outer box; 2. Cover plate; 3. Ear plate; 4. Electric telescopic push rod; 5. Identification frame; 6. Bottom plate; 7. Circuit board; 8. Spring seat; 9. Pin base; 10. Push rod sleeve; 11. Push rod swing slot; 12. Switch conductive sheet; 13. Inner box bracket; 14. Top column; 15. Top column perforation; 101. Slide slot; 102. Buffer airbag; 103. Diverter airbag; 401. Magnetic ring; 1001. Limit switch; 1201. Rotating shaft. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific inventions.

[0028] like Figure 1-7 As shown, in this embodiment, combined with Figures 1 to 7The present embodiment describes a kind of anti-pinch finger device of intelligent trash bin cover, comprises outer box body 1, bracket 13, cover plate 2, the upper surface of bracket 13 is provided with slide groove 101, the inside of slide groove 101 is provided with bottom plate 6, bottom plate 6 can slide and move to a certain position inside slide groove 101, the upper end of bottom plate 6 is provided with pin shaft base 9, the inner side of pin shaft base 9 is provided with push rod sleeve 10, electric telescopic push rod 4 is connected between push rod sleeve 10 and cover plate 2, the outer side of electric telescopic push rod 4 is provided with top column through hole 15 on the upper surface of outer box body 1, when bottom plate 6 moves, electric telescopic push rod 4 can rotate to a certain angle inside top column through hole 15, so as to realize The cover 2 is operated at a certain angle of opening and closing. Spring seats 8 are installed on both sides of the push rod sleeve 10, which are located inside the pin base 9. A switch conductive sheet 12 is installed below the spring seat 8. A rotating shaft 1201 is installed between the switch conductive sheet 12 and the pin base 9. Circuit boards 7 are arranged on both sides of the spring seat 8. When the push rod sleeve 10 swings in the pin base 9, the squeezing and rebounding of the spring seat 8 are controlled. When the cover is closed, the push rod sleeve 10 squeezes the spring seat 8. The spring seat 8 rotates with the bottom plate 6 through the rotating shaft 1201 by pressing the switch conductive sheet 12. The electrical path between the switch conductive sheet 12 and the circuit board 7 is disconnected, so that the electric telescopic push rod 4 stops inside the push rod sleeve 10. The cover 2 is moved to stop closing the cover, so as to prevent the cover 2 from pinching people's hands. A top column 14 is installed on the lower surface of the cover 2. A top column through-hole 15 is provided on the upper surface of the outer box body 1 just below the top column 14. A buffer airbag 102 is provided inside the outer box body 1 below the top column through-hole 15. Diverter airbags 103 are installed on both side sections of the buffer airbag 102. The buffer airbag 102 is through-connected with the diverter airbag 103. The elastic modulus of the diverter airbag 103 is greater than that of the buffer airbag 102. When the top column 14 on the lower surface of the cover 2 passes through the top column through-hole 15, the buffer airbag 102 is squeezed. The insides of the buffer airbag 102 and the diverter airbag 103 are filled with gas. The interior of the diverter airbag 103 can also be filled with liquid, such as an aqueous solution or alcohol. When pressure is applied from above, the media filled in the buffer airbag 102 and the diverter airbag 103 can flow back and forth with each other. Since the elastic modulus of the diverter airbag 103 is greater than that of the buffer airbag 102, under normal circumstances, the buffer airbag 102 is filled with more gas than the diverter airbag 103. When the buffer airbag 102 is compressed, the internal gas will move to the inside of the diverter airbag 103, thereby completing the buffering effect during the falling process of the cover plate 2. At the same time, after the cover plate 2 is opened, the gas compressed into the inside of the diverter airbag 103 will flow back to the buffer airbag 102, which is convenient for further buffering.

[0029] like Figure 1 ,2 As shown in Figure 5, in this embodiment, an identification frame 5 is installed on the upper surface of the outer box body 1, and the identification frame 5 is used for the operation of the biometric identification technology or radio frequency identification technology control circuit. The outer side of the electric telescopic push rod 4 is located on the upper surface of the outer box body 1 and a push rod swing groove 11 is opened. The push rod swing groove 11 is a waist-shaped through-hole structure. When the push rod sleeve 10 swings in the pin shaft base 9 to open and close the cover plate 2, the electric telescopic push rod 4 can achieve a certain degree of swing inside the push rod swing groove 11, which is convenient for the normal opening and closing of the cover plate 2. An ear plate 3 is connected between 4 and the cover plate 2, a limit switch 1001 is installed on the outer wall of the push rod sleeve 10, the lower end of the electric telescopic push rod 4 is located inside the push rod sleeve 10 and a magnetic ring 401 is installed, the limit switch 1001 can generate a magnetic field and magnetically connect with the magnetic ring 401, once the magnetic ring 401 moves to the position of the limit switch 1001, the limit switch 1001 will adsorb the magnetic ring 401 to the inner wall of the push rod sleeve 10, so that the electric telescopic push rod 4 stops working, and the cover plate 2 is prevented from continuing to open upward.

[0030] The working principle of the present invention is as follows: when in use, the identification frame 5 is used to identify the garbage through biometric identification technology or radio frequency identification technology to complete the data transmission of the opening and closing actions. When the garbage is normally dumped into the interior, the identification frame 5 can normally control the electric telescopic push rod 4 to close the cover 2. When a foreign object blocks the cover 2 from falling, the electric telescopic push rod 4 will continue to retract into the interior of the push rod sleeve 10. When it retracts to a certain position limit, the push rod sleeve 10 will swing in the opposite direction close to the spring seat 8 to produce extrusion. The spring seat 8 rotates with the bottom plate 6 through the rotating shaft 1201 by pressing the switch conductive sheet 12. Disconnecting the electrical path between the switch conductive sheet 12 and the circuit board 7 stops the electric telescopic push rod 4 from moving inside the push rod sleeve 10, thereby achieving stop. The function of the closing cover is to prevent the electric telescopic push rod 4 from being overloaded, which may cause the equipment to burn out and the related equipment to generate a large amount of heat, causing a fire accident. When the top column 14 on the lower surface of the cover plate 2 passes through the top column perforation 15, the buffer airbag 102 will be squeezed. The inside of the buffer airbag 102 and the diverter airbag 103 are both filled with gas. Since the elastic modulus of the diverter airbag 103 is greater than the elastic modulus of the buffer airbag 102, under normal circumstances, the gas filled in the buffer airbag 102 is more than that in the diverter airbag 103. When the buffer airbag 102 is compressed, the internal gas will move to the inside of the diverter airbag 103, thereby completing the buffering effect during the falling process of the cover plate 2. At the same time, after the cover plate 2 is opened, the gas compressed into the inside of the diverter airbag 103 will flow back into the buffer airbag 102, which is convenient for another buffering effect.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-pinch device for a smart trash can lid, comprising an outer box body (1) with an open top, a bracket (13) arranged inside the outer box body (1), and a cover plate (2) arranged at the upper end of the outer box body (1), characterized in that: The upper surface of the bracket (13) is provided with a slide groove (101), a bottom plate (6) is installed inside the slide groove (101), a pin shaft base (9) is installed on the upper end of the bottom plate (6), a push rod sleeve (10) is installed on the inner side of the pin shaft base (9), an electric telescopic push rod (4) is connected between the push rod sleeve (10) and the cover plate (2), spring seats (8) are installed on both sides of the push rod sleeve (10) and located on the inner side of the pin shaft base (9), circuit boards (7) are arranged on both sides of the spring seat (8), a switch conductive sheet (12) is installed below the spring seat (8), and a rotating shaft (1201) is installed between the switch conductive sheet (12) and the pin shaft base (9); A top column (14) is installed on the lower surface of the cover plate (2); a top column through hole (15) is opened on the upper surface of the outer box body (1) directly below the top column through hole (14); a buffer air bag (102) is arranged inside the outer box body (1) below the top column through hole (15); and diverter air bags (103) are installed on both side sections of the buffer air bag (102); A limit switch (1001) is installed on the outer wall of the push rod sleeve (10), and a magnetic ring (401) is installed on the lower end of the electric telescopic push rod (4) located inside the push rod sleeve (10).

2. The anti-pinch device for the intelligent trash can cover according to claim 1, characterized in that: A push rod swing groove (11) is provided on the outer side of the electric telescopic push rod (4) and located on the upper surface of the outer box body (1), and an ear plate (3) is connected between the electric telescopic push rod (4) and the cover plate (2).

3. The anti-pinch device for the intelligent trash can cover according to claim 1, characterized in that: An identification frame (5) is installed on the upper surface of the outer box (1), and the identification frame (5) is used for controlling the operation of a circuit using biometric identification technology or radio frequency identification technology.

4. The anti-pinch device for the intelligent trash can cover according to claim 1, characterized in that: The switch conductive sheet (12) is rotatably connected to the pin shaft base (9) via the rotating shaft (1201), and the push rod sleeve (10) is rotatably connected to the pin shaft base (9).

5. The anti-pinch device for the intelligent trash can cover according to claim 2, characterized in that: The buffer airbag (102) is connected to the diverter airbag (103) through-connection, and the elastic modulus of the diverter airbag (103) is greater than the elastic modulus of the buffer airbag (102).

6. The anti-pinch device for the cover of an intelligent trash can according to claim 2, characterized in that: The electric telescopic push rod (4) is rotatably connected to the ear plate (3), and the push rod swing groove (11) is a waist-shaped through-hole structure.

7. The anti-pinch device for the intelligent trash can cover according to claim 1, characterized in that: The limit switch (1001) can generate a magnetic field to be magnetically connected to the magnetic ring (401).

8. The anti-pinch device for the cover of an intelligent trash can according to claim 2, characterized in that: The top column through hole (15) is connected to the outer box body (1), and the bottom plate (6) is slidably connected to the push rod swing groove (11).

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