Skin disinfection and sterilization instrument

Abstract

The invention discloses a skin disinfection and sterilization instrument, which relates to the technical field of skin disinfection and sterilization, and comprises a machine body and a disinfection and sterilization mechanism, wherein a conversion mechanism is arranged below the disinfection and sterilization mechanism, and a driving mechanism is arranged on the left side of the machine body. The invention has the advantages that: through the arranged disinfection and sterilization mechanism, when it is necessary to locally disinfect and sterilize the skin, the skin is first cleaned by hand soap, and then the hand soap is rinsed by water from a faucet, and then the skin is disinfected by disinfectant, and then the disinfectant is cleaned by water from the faucet, and the cleaned waste liquid flows into a wastewater collection box, and finally is discharged after being treated in a wastewater treatment tank to meet the discharge standard, and after the disinfection is completed, the skin is dried by a dryer, and finally is disinfected by an ultraviolet disinfector, and the combination of multiple disinfection and sterilization methods significantly enhances the effect of skin disinfection and sterilization.

Description

Technical Field

[0001] The invention relates to the technical field of skin disinfection and sterilization, in particular to a skin disinfection and sterilization instrument. Background Art

[0002] Skin disinfection and sterilization equipment can effectively kill harmful bacteria on the surface of the skin, reduce the risk of infection caused by the invasion of bacteria, viruses and other microorganisms, especially in medical places, beauty salons and other environments, help remove pathogens on the skin, keep the skin relatively clean, and reduce various skin problems caused by bacterial growth;

[0003] In the prior art, multiple operations are often required to disinfect and sterilize the skin. There is a certain distance between the related equipment, and the user needs to use them in different places. It is not integrated enough and inconvenient to use. At the same time, during this period, the skin is easily contaminated with bacteria again, resulting in poor disinfection and sterilization effect. For this reason, we propose a skin disinfection and sterilization instrument. Summary of the invention

[0004] The purpose of the present invention is to provide a skin disinfection and sterilization instrument.

[0005] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a skin disinfection and sterilization instrument, comprising a body and a disinfection and sterilization mechanism, a conversion mechanism is arranged below the disinfection and sterilization mechanism, and a driving mechanism is arranged on the left side of the body.

[0006] The disinfection and sterilization mechanism includes a protective pad, a disinfection pool, a dryer and an ultraviolet disinfector are fixedly installed on the upper surface of the protective pad, the disinfection pool is fixedly connected to a wastewater collection box through a water tank, the wastewater collection box is fixedly connected to a wastewater treatment tank through a connecting conduit, hand soap and disinfectant are fixedly installed on the upper surface of the disinfection pool, the conversion mechanism includes a rotating disk and a mounting frame, a rotating part is fixedly installed on the bottom of the rotating disk, a fixed gear block is fixedly installed on the outer wall of the rotating disk, the rotating disk is provided with a limiting hole through a limiting part, the mounting frame is movably connected to a limiting spring through a telescopic groove, and the limiting spring is movably connected to a connecting part through a limiting rod.

[0007] As a further solution of the present invention: an operating table is fixedly installed on the upper surface of the body, a rotating groove is provided on the surface of the operating table near the edge, a water pipe is fixedly installed in the middle of the body and the operating table, and a first button and a second button are respectively provided on the front side of the body near the two sides.

[0008] As a further solution of the present invention: the bottom of the protective pad is fixedly mounted on the upper surface of the rotating disk, and the disinfection pool, dryer and ultraviolet disinfector are respectively located on the front, right and back of the protective pad.

[0009] As a further solution of the present invention: the water trough is opened on the surface of the disinfection pool near the right side, the wastewater collection box is fixedly installed inside the water trough, a faucet is arranged above the water trough, and the faucet is fixedly installed at the water outlet end of the water pipe.

[0010] As a further solution of the present invention: one end of the connecting conduit is fixedly installed at the water outlet of the wastewater collection box, and the other end of the connecting conduit is fixedly connected to the water inlet of the wastewater treatment tank, and the wastewater treatment tank is fixedly installed on the side of the interior of the disinfection pool away from the water tank.

[0011] As a further solution of the present invention: the rotating member is rotatably connected to the rotating groove, a pipe hole is penetrated in the middle of the surface of the rotating disk, the size of the pipe hole is adapted to the water pipe, the limiting member is fixedly mounted on the outer wall of the rotating disk, and the limiting hole penetrates the surface of the limiting member.

[0012] As a further solution of the present invention: the bottom of the mounting frame is fixedly installed on the upper surface of the operating table near the left corner, the front of the mounting frame is provided with a sliding groove, the telescopic groove is opened inside the mounting frame, the bottom of the limit spring is fixedly installed inside the telescopic groove, the bottom of the limit rod is fixedly installed on the upper end of the limit spring, the size of the limit rod is adapted to the limit hole, the connecting piece is fixedly installed on the outer wall of the limit rod near the bottom position, and the connecting piece is slidably connected to the outer wall of the sliding groove.

[0013] As a further solution of the present invention: the driving mechanism includes a controller, the controller is fixedly mounted on the left outer wall of the body, the controller is electrically connected to the body, a servo motor is fixedly mounted on the side of the controller, a rotating shaft is fixedly mounted on the rotating shaft of the servo motor, a driving gear is fixedly mounted on the upper outer wall of the rotating shaft, and the driving gear is meshed with a fixed gear block.

[0014] As a further solution of the present invention: an electric telescopic rod is fixedly installed on the front of the controller, a docking piece is fixedly installed on the upper end of the electric telescopic rod, the inner side of the docking piece is fixedly connected to the connecting piece, the first button is used to control the switch of the servo motor, and the second button is used to control the switch of the electric telescopic rod.

[0015] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention provides a disinfection and sterilization mechanism. When local disinfection and sterilization of the skin is required, the skin is first cleaned with hand sanitizer, and then the hand sanitizer is rinsed with water from a tap, and then the skin is disinfected with a disinfectant, and then the disinfectant is cleaned with water from a tap. The waste liquid after cleaning flows into a wastewater collection box, and finally is discharged after being treated in a wastewater treatment tank to meet the discharge standard. After the disinfection is completed, the skin is dried with a dryer, and finally disinfected with an ultraviolet disinfector. The combination of multiple disinfection and sterilization methods significantly enhances the effect of skin disinfection and sterilization;

[0017] 2. The present invention can change the angle of the rotating disk by rotating the rotating member in the rotating groove through the conversion mechanism, and then switch the angle of the disinfection and sterilization mechanism to perform different sterilization operations. The limit rod can be extended and retracted by the extension and retraction of the limit spring, and then the limit rod can be inserted into different limit holes. The rotating disk is fixed after rotating at different angles, thereby improving the flexibility of the disinfection and sterilization mechanism;

[0018] 3. The present invention provides a driving mechanism that can drive the driving gear on the upper end of the rotating shaft to rotate through the rotation of the servo motor, so that the fixed gear block rotates, thereby driving the rotating disk to rotate, and the connecting piece is driven to move up and down through the extension and retraction of the electric telescopic rod, thereby realizing the up and down movement of the connecting piece, so that the limit rod can automatically complete the extension and retraction, and the auxiliary conversion mechanism is rotated and fixed, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure in an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of a part of an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall structure of a part of an embodiment of the present invention;

[0022] Figure 4 A bottom view of a portion of the structure of the conversion mechanism in an embodiment of the present invention;

[0023] Figure 5 It is a partial structural exploded diagram of the conversion mechanism in the embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the three-dimensional structure of the disinfection and sterilization mechanism in an embodiment of the present invention;

[0025] Figure 7 It is a partial structural exploded diagram of the disinfection and sterilization mechanism in the embodiment of the present invention;

[0026] Figure 8Schematic diagram of the three-dimensional structure of the driving mechanism in an embodiment of the present invention.

[0027] In the figure: 1, machine body; 2, operating table; 3, rotating groove; 4, water pipe; 5, first button; 6, second button; 7, conversion mechanism; 701, rotating disk; 702, fixed gear block; 703, rotating member; 704, pipe hole; 705, limit member; 706, limit hole; 707, mounting frame; 708, sliding groove; 709, telescopic groove; 710, limit spring; 711, limit rod; 712, connecting member; 8, disinfection and sterilization mechanism; 8 01. Protective pad; 802. Disinfection pool; 803. Faucet; 804. Dryer; 805. Ultraviolet disinfector; 806. Sink; 807. Wastewater collection box; 808. Connecting duct; 809. Wastewater treatment tank; 810. Hand sanitizer; 811. Disinfectant; 9. Driving mechanism; 901. Controller; 902. Servo motor; 903. Rotating shaft; 904. Driving gear; 905. Electric telescopic rod; 906. Docking piece. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0029] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Please refer to the attached Figure 1 -Attached Figure 8 The present invention discloses a skin disinfection and sterilization instrument, comprising a body 1 and a disinfection and sterilization mechanism 8, a conversion mechanism 7 is arranged below the disinfection and sterilization mechanism 8, a driving mechanism 9 is arranged on the left side of the body 1, the disinfection and sterilization mechanism 8 comprises a protective pad 801, a disinfection pool 802, a drying machine 804 and an ultraviolet disinfection instrument 805 are fixedly installed on the upper surface of the protective pad 801, the disinfection pool 802 is fixedly connected to a wastewater collection box 807 through a water tank 806, and the wastewater collection box 807 is fixedly connected to a wastewater treatment tank 807 through a connecting conduit 808. 09. Hand soap 810 and disinfectant 811 are fixedly installed on the upper surface of the disinfection pool 802. The conversion mechanism 7 includes a rotating disk 701 and a mounting frame 707. A rotating member 703 is fixedly installed on the bottom of the rotating disk 701. A fixed tooth block 702 is fixedly installed on the outer wall of the rotating disk 701. The rotating disk 701 is provided with a limiting hole 706 through a limiting member 705. The mounting frame 707 is movably connected to a limiting spring 710 through a telescopic slot 709. The limiting spring 710 is movably connected to a connecting member 712 through a limiting rod 711.

[0031] In one embodiment of the present invention: an operating table 2 is fixedly installed on the upper surface of the body 1, a rotating groove 3 is provided on the surface of the operating table 2 near the edge, a water pipe 4 is fixedly installed in the middle of the body 1 and the operating table 2, and a first button 5 and a second button 6 are respectively provided on the front of the body 1 near the two sides.

[0032] In one embodiment of the present invention: the bottom of the protective mat 801 is fixedly mounted on the upper surface of the rotating disk 701, and the disinfection pool 802, the dryer 804 and the ultraviolet disinfector 805 are respectively located on the front, right and back of the protective mat 801.

[0033] In one embodiment of the present invention: a water tank 806 is opened on the surface of the disinfection pool 802 near the right side, and a wastewater collection box 807 is fixedly installed inside the water tank 806. A faucet 803 is arranged above the water tank 806, and the faucet 803 is fixedly installed at the water outlet end of the water pipe 4.

[0034] In one embodiment of the present invention: one end of the connecting conduit 808 is fixedly installed at the water outlet of the wastewater collection box 807, and the other end of the connecting conduit 808 is fixedly connected to the water inlet of the wastewater treatment tank 809, and the wastewater treatment tank 809 is fixedly installed inside the disinfection pool 802 on the side away from the water tank 806.

[0035] In one embodiment of the present invention: the rotating member 703 is rotatably connected to the rotating groove 3, a tube hole 704 is penetrated in the middle of the surface of the rotating disk 701, the size of the tube hole 704 is adapted to the water pipe 4, the limiting member 705 is fixedly installed on the outer wall of the rotating disk 701, and the limiting hole 706 penetrates the surface of the limiting member 705.

[0036] In one embodiment of the present invention: the bottom of the mounting frame 707 is fixedly installed on the upper surface of the operating table 2 near the left corner, a sliding groove 708 is opened on the front of the mounting frame 707, and a telescopic groove 709 is opened inside the mounting frame 707. The bottom of the limit spring 710 is fixedly installed inside the telescopic groove 709, and the bottom of the limit rod 711 is fixedly installed on the upper end of the limit spring 710. The size of the limit rod 711 is adapted to the limit hole 706. The connecting member 712 is fixedly installed on the outer wall of the limit rod 711 near the bottom position, and the connecting member 712 is slidably connected to the outer wall of the sliding groove 708.

[0037] In one embodiment of the present invention: the driving mechanism 9 includes a controller 901, the controller 901 is fixedly mounted on the left outer wall of the body 1, the controller 901 is electrically connected to the body 1, a servo motor 902 is fixedly mounted on the side of the controller 901, a rotating shaft 903 is fixedly mounted on the rotating shaft of the servo motor 902, a driving gear 904 is fixedly mounted on the outer wall of the upper end of the rotating shaft 903, and the driving gear 904 is meshed with the fixed gear block 702.

[0038] In one embodiment of the present invention: an electric telescopic rod 905 is fixedly installed on the front of the controller 901, a docking piece 906 is fixedly installed on the upper end of the electric telescopic rod 905, the inner side of the docking piece 906 is fixedly connected to the connecting piece 712, the first button 5 is used to control the switch of the servo motor 902, and the second button 6 is used to control the switch of the electric telescopic rod 905.

[0039] Example 1, please refer to the attached Figure 1 -Attached Figure 5 A rotating member 703 compatible with the rotating groove 3 is fixedly installed on the lower surface of the rotating disk 701 near the edge position, ensuring that the rotating disk 701 can slide smoothly. A pipe hole 704 runs through the middle position of the surface of the rotating disk 701, which can facilitate the passage of the water pipe 4. The mounting frame 707 is fixedly installed on the front side of the operating table 2 near the left side. The connecting member 712 can slide smoothly in the sliding groove 708 and will not separate from the sliding groove 708. The connecting member 712 is installed on the outer wall of the limiting rod 711 near the bottom position, ensuring that the limiting rod 711 can be freely retracted in the telescopic groove 709. The limiting rod 711 is located directly below the limiting hole 706, ensuring that the limiting rod 711 can be accurately docked with the limiting hole 706.

[0040] Example 2, please refer to the attached Figure 1 -Attached Figure 7 The disinfection pool 802, dryer 804 and ultraviolet disinfection device 805 are respectively located on the front, right and back of the protective pad 801. When the rotating disk 701 rotates, each time the rotating disk 701 switches ninety degrees, it corresponds to one of the disinfection pool 802, dryer 804 and ultraviolet disinfection device 805. The user only needs to stand still in front to complete all the disinfection and sterilization steps. The water containing hand sanitizer 810 and disinfectant 811 can be collected by the wastewater collection box 807 and then enter the wastewater treatment tank 809 for treatment. It will be discharged after the treatment meets the emission standards, which will not affect the environment.

[0041] Example 3, please refer to the attached Figure 1 -Attached Figure 8The servo motor 902 is connected to the body 1 through the controller 901, and the body 1 is electrically controlled to the first button 5, so that the first button 5 can directly control the switch of the servo motor 902, and the electric telescopic rod 905 is connected to the body 1 through the controller 901, and the body 1 is electrically connected to the second button 6, so that the second button 6 can directly control the extension and retraction of the electric telescopic rod 905, so that the user can control the direction conversion of the disinfection and sterilization instrument with just his feet and perform different disinfection and sterilization operations.

[0042] Specifically, when local disinfection and sterilization of the skin is required, the skin is first cleaned with hand sanitizer 810, and then the hand sanitizer 810 is rinsed with water from faucet 803, and then the skin is disinfected with disinfectant 811, and then the disinfectant 811 is cleaned with water from faucet 803, and the waste liquid after cleaning flows into the wastewater collection box 807, and finally is discharged after being treated in the wastewater treatment tank 809 to meet the emission standards. After the disinfection is completed, the skin is dried by the dryer 804, and finally disinfected by the ultraviolet disinfector 805. The combination of multiple disinfection and sterilization methods significantly enhances the effect of skin disinfection and sterilization.

[0043] Specifically, the angle of the rotating disk 701 can be changed by the rotation of the rotating member 703 in the rotating groove 3, and then the angle of the disinfection and sterilization mechanism 8 can be switched to perform different sterilization operations. The limit rod 711 can be extended and retracted through the extension and retraction of the limit spring 710, and then the limit rod 711 can be inserted into different limit holes 706. The rotating disk 701 is fixed after it rotates to different angles, thereby improving the flexibility of the disinfection and sterilization mechanism 8.

[0044] Specifically, the servo motor 902 rotates to drive the driving gear 904 at the upper end of the rotating shaft 903 to rotate, so that the fixed gear block 702 rotates, thereby driving the rotating disk 701 to rotate, and the electric telescopic rod 905 is extended and retracted to drive the docking member 906 to move up and down, thereby realizing the up and down movement of the connecting member 712, so that the limit rod 711 can automatically complete the extension and retraction, and the auxiliary conversion mechanism 7 is rotated and fixed, thereby improving efficiency.

[0045] Working principle:

[0046] First, the user stands in front of the operating table 2, first cleans the skin with hand sanitizer 810, then rinses the hand sanitizer 810 with water from the faucet 803, then disinfects the skin with disinfectant 811, and then rinses the disinfectant 811 with water from the faucet 803. The waste liquid after cleaning flows into the wastewater collection box 807, and is discharged after being treated in the wastewater treatment tank 809 to meet the discharge standard. After the disinfection is completed, the user first controls the second button 6 with his foot to shrink the electric telescopic rod 905, driving the limit rod 711 on the connecting member 712 to slide down along the telescopic groove 709. The user then controls the first button 5 with his foot to start the servo motor 902, and the fixed gear block 702 is driven to rotate by the rotation of the active gear 904, thereby realizing the rotation of the rotating disk 701, and stops after rotating ninety degrees, and controls the second button 6 to extend the electric telescopic rod 905, driving the limiting rod 711 to be inserted into the corresponding limiting hole 706, so that the skin can be dried by the dryer 804, and then the above operation is repeated to rotate the rotating disk 701 ninety degrees again, and disinfect it by the ultraviolet disinfector 805. At this point, the entire workflow ends.

[0047] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0049] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field.

[0050] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0051] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations are made to these embodiments without departing from the principle and spirit of the present invention, and they still fall within the protection scope of the present invention.

Claims

1. A skin disinfection and sterilization apparatus, comprising a body (1) and a disinfection and sterilization mechanism (8), characterized in that: A conversion mechanism (7) is provided below the disinfection and sterilization mechanism (8), and a driving mechanism (9) is provided on the left side of the machine body (1); The disinfection and sterilization mechanism (8) comprises a protective pad (801), a disinfection pool (802), a drying machine (804) and an ultraviolet disinfection device (805) are fixedly installed on the upper surface of the protective pad (801), the disinfection pool (802) is fixedly connected to a wastewater collection box (807) via a water tank (806), the wastewater collection box (807) is fixedly connected to a wastewater treatment tank (809) via a connecting conduit (808), and hand soap (810) and disinfectant (811) are fixedly installed on the upper surface of the disinfection pool (802); The conversion mechanism (7) comprises a rotating disk (701) and a mounting frame (707); a rotating member (703) is fixedly mounted on the bottom of the rotating disk (701); a fixed tooth block (702) is fixedly mounted on the outer wall of the rotating disk (701); a limiting hole (706) is provided on the rotating disk (701) via a limiting member (705); the mounting frame (707) is movably connected to a limiting spring (710) via a telescopic slot (709); and the limiting spring (710) is movably connected to a connecting member (712) via a limiting rod (711); An operating table (2) is fixedly mounted on the upper surface of the machine body (1); a rotating groove (3) is provided on the surface of the operating table (2) near the edge; a water pipe (4) is fixedly mounted in the middle of the machine body (1) and the operating table (2); and a first button (5) and a second button (6) are respectively provided on the front of the machine body (1) near the two sides; The driving mechanism (9) comprises a controller (901), the controller (901) being fixedly mounted on the left outer wall of the machine body (1), the controller (901) being electrically connected to the machine body (1), a servo motor (902) being fixedly mounted on the side of the controller (901), a rotating shaft (903) being fixedly mounted on the rotating shaft of the servo motor (902), a driving gear (904) being fixedly mounted on the outer wall of the upper end of the rotating shaft (903), and the driving gear (904) being meshed with a fixed gear block (702); An electric telescopic rod (905) is fixedly mounted on the front of the controller (901); a docking piece (906) is fixedly mounted on the upper end of the electric telescopic rod (905); the inner side surface of the docking piece (906) is fixedly connected to the connecting piece (712); the first button (5) is used to control the switch of the servo motor (902); and the second button (6) is used to control the switch of the electric telescopic rod (905).

2. A skin disinfection and sterilization instrument according to claim 1, characterized in that: The bottom of the protective pad (801) is fixedly mounted on the upper surface of the rotating disk (701), and the disinfection pool (802), the drying machine (804) and the ultraviolet disinfection device (805) are respectively located on the front, right and back of the protective pad (801).

3. A skin disinfection and sterilization instrument according to claim 2, characterized in that: The water trough (806) is provided on the surface of the disinfection pool (802) near the right side, and the wastewater collection box (807) is fixedly installed inside the water trough (806). A faucet (803) is provided above the water trough (806), and the faucet (803) is fixedly installed at the water outlet end of the water pipe (4).

4. A skin disinfection and sterilization instrument according to claim 3, characterized in that: One end of the connecting conduit (808) is fixedly mounted at the water outlet of the wastewater collection box (807), and the other end of the connecting conduit (808) is fixedly connected to the water inlet of the wastewater treatment tank (809). The wastewater treatment tank (809) is fixedly mounted on a side of the disinfection pool (802) away from the water tank (806).

5. A skin disinfection and sterilization instrument according to claim 1, characterized in that: The rotating member (703) is rotatably connected to the rotating groove (3); a tube hole (704) is penetrated at the middle position of the surface of the rotating disk (701); the size of the tube hole (704) is adapted to the water pipe (4); the limiting member (705) is fixedly mounted on the outer wall of the rotating disk (701); and the limiting hole (706) penetrates the surface of the limiting member (705).

6. A skin disinfection and sterilization instrument according to claim 5, characterized in that: The bottom of the mounting frame (707) is fixedly mounted on the upper surface of the operating table (2) near the left corner, the front of the mounting frame (707) is provided with a sliding groove (708), the telescopic groove (709) is provided inside the mounting frame (707), the bottom of the limit spring (710) is fixedly mounted inside the telescopic groove (709), the bottom of the limit rod (711) is fixedly mounted on the upper end of the limit spring (710), the size of the limit rod (711) is adapted to the limit hole (706), the connecting member (712) is fixedly mounted on the outer wall of the limit rod (711) near the bottom position, and the connecting member (712) is slidably connected to the outer wall of the sliding groove (708).

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