Intelligent rowing machine

Abstract

The invention discloses an intelligent rowing machine which comprises a resistance system and a foot pad and further comprises an emergency rescue system, a protective cushion assembly, a personnel fixing mechanism, a moving assembly and an oxygen supply system, the end face of one side of the resistance system is fixedly connected with the emergency rescue system, and the emergency rescue system supports and accommodates personnel; the upper side end face of the emergency rescue system is slidably connected with a protective cushion assembly, the bottom end face of the protective cushion assembly is connected with a driving mechanism, the driving mechanism drives the protective cushion assembly to move, and a pair of opposite end faces of the emergency rescue system are fixedly connected with personnel fixing mechanisms. When the fitness personnel suddenly suffer from diseases and coma in the fitness process, the emergency rescue system is started, the rescue bed is automatically generated for the patient to lie flat, and people around can operate the rescue bed to be separated from the resistance system and control the rescue bed to quickly move to a medical point to rescue the patient.

Description

Technical Field

[0001] The invention belongs to the technical field of rowing machines, and in particular relates to an intelligent rowing machine. Background Art

[0002] The rowing machine is a full-body aerobic exercise machine with a variety of functions and benefits. The use of the rowing machine also requires attention to some details. The correct posture and movement can avoid discomfort such as back pain. For example, the pulling action of the arms can effectively exercise the biceps and triceps, the back muscles play a key role in the rowing action, and the leg muscles also work together during the rowing process. By adjusting the resistance level, the rowing machine is suitable for different people, including the elderly and beginners, and everyone can benefit from it.

[0003] However, when fitness personnel are operating and using rowing machines in the gym or at home, if they suddenly become ill or unconscious during the fitness process, they need timely assistance, and in order to avoid serious damage to the patient, the patient cannot be moved at will. However, the rescue bed and rescue personnel cannot arrive quickly, which can easily delay the best rescue time and cause irreparable damage to the fitness personnel.

[0004] When a rescuer was exercising, he suddenly fell unconscious. However, when using a boat changing machine, his feet would be tied to the pedals. The feet of the fitness worker were always tied up, which would hinder blood circulation and cause hypoxia and ischemia of the feet. In severe cases, it would cause local tissue necrosis, which is very dangerous.

[0005] Therefore, in view of the above technical problems, it is necessary to provide an intelligent rowing machine.

[0006] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0007] The object of the present invention is to provide an intelligent rowing machine which can solve the problems raised by the background technology.

[0008] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0009] An intelligent rowing machine includes a resistance system and foot pads, and also includes an emergency rescue system, a protective seat cushion assembly, a personnel fixing mechanism, a moving assembly and an oxygen supply system. One side end face of the resistance system is fixedly connected to the emergency rescue system, and the emergency rescue system supports and accommodates personnel. The upper side end face of the emergency rescue system is slidably connected to the protective seat cushion assembly, and the bottom end face of the protective seat cushion assembly is connected to a driving mechanism, and the driving mechanism drives the protective seat cushion assembly to move. A pair of opposite end faces of the emergency rescue system are fixedly connected to the personnel fixing mechanism, and the moving assembly can be raised and lowered and fixedly connected to the bottom end face of the emergency rescue system; the oxygen supply system includes an oxygen tank, and the oxygen tank is connected to the emergency rescue system to supply oxygen.

[0010] In one or more embodiments of the present invention, the automatic foot pad tensioning system includes an automatic tensioning airbag, and an automatic inflation component is disposed in the automatic tensioning airbag.

[0011] In one or more embodiments of the present invention, one side end surface of the resistance system is fixedly connected to a first barless cylinder, the first barless cylinder includes a first slider, one side end surface of the first slider is fixedly connected to a base, and the top end surface of the base is fixedly connected to a foot pad.

[0012] In one or more embodiments of the present invention, the emergency rescue system includes a rowing rail, a first automatic telescopic plate, a pair of second automatic telescopic plates, and a pair of third automatic telescopic plates. The rowing rail is fixedly connected to one end face of the resistance system; a pair of opposite end faces of the rowing rail are fixedly connected to the first automatic telescopic plate, and the outer end face of the first automatic telescopic plate is fixedly connected to an outer protective plate; the outer protective plate is rotatably connected to the second automatic telescopic plate through an automatic rotation mechanism; a pair of third automatic telescopic plates are respectively fixedly connected to the opposite end faces of the pair of second automatic telescopic plates.

[0013] In one or more embodiments of the present invention, the first oxygen supply pipe and the second oxygen supply pipe are both connected to the second automatic telescopic plate, a plurality of first air holes are provided on one end surface of the second automatic telescopic plate, the first oxygen supply pipe is connected to the first nozzle, and the first nozzle is fixedly connected to the first air hole.

[0014] In one or more embodiments of the present invention, the personnel fixing mechanism includes a second automatic telescopic rod and a slide rail, a pair of the second automatic telescopic plates are provided with a slide rail, a second barless cylinder is connected in the groove wall of the slide rail, the second barless cylinder includes a second slider, and the second slider is fixedly connected to the second automatic telescopic rod.

[0015] In one or more embodiments of the present invention, the protective seat cushion assembly includes a protective seat cushion, and a protective airbag is connected to the protective seat cushion.

[0016] In one or more embodiments of the present invention, a plurality of second air holes are formed on the protective seat cushion, a second nozzle is fixedly connected to the second air holes, and the second nozzle is connected to a second oxygen supply pipe.

[0017] In one or more embodiments of the present invention, a limiting hole is opened on one end surface of the resistance system, an electromagnet assembly is fixedly connected in the limiting hole, and a metal fixing block is fixedly connected to one end surface of the rowing guide rail, and the metal fixing block is magnetically connected to the electromagnet assembly.

[0018] In one or more embodiments of the present invention, the bottom end surface of the first automatic telescopic plate is fixedly connected to a moving component, the moving component includes a first automatic telescopic rod and a universal wheel, the bottom end surface of the first automatic telescopic plate is fixedly connected to a plurality of first automatic telescopic rods, and the bottom end surface of the first automatic telescopic rod is fixedly connected to the universal wheel.

[0019] Compared with the prior art, the intelligent rowing machine of the present invention has the following benefits:

[0020] 1) When a fitness person suddenly becomes ill or faints during fitness, the emergency rescue system is activated and a rescue bed is automatically generated for the patient to lie flat. The surrounding personnel can operate the rescue bed to separate from the resistance system and control the rescue bed to move quickly to the medical point to rescue the patient;

[0021] 2) When the fitness person falls unconscious, the automatic foot pad tensioning system starts automatically to loosen the fitness person's feet, making it easier for the fitness person to relieve foot discomfort.

[0022] 3) When fitness personnel have difficulty breathing, oxygen can be supplied through the oxygen supply system to help rescue personnel restore normal breathing in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of an intelligent rowing machine in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of a first use state of an intelligent rowing machine in one embodiment of the present invention;

[0026] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0027] Figure 4 This is a schematic diagram of a second use state of an intelligent rowing machine in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of a third use state of an intelligent rowing machine in one embodiment of the present invention;

[0029] Figure 6 Schematic diagram of a fourth usage state of an intelligent rowing machine in one embodiment of the present invention.

[0030] Description of main reference numerals:

[0031] 1-resistance system, 101-limiting hole, 2-automatic foot pad tensioning system, 201-foot pad, 202-automatic tensioning airbag, 203-first barless cylinder, 204-base, 205-slide rail, 206-first slider, 3-protective seat cushion assembly, 301-protective seat cushion, 302-protective airbag, 4-moving assembly, 401-first automatic telescopic rod, 402-universal wheel, 5-oxygen supply system, 6-driving mechanism, 7-emergency rescue system, 701-outer protective plate, 7011-first automatic telescopic plate, 702-second automatic telescopic plate, 703-automatic rotation mechanism, 704-third automatic telescopic plate, 705-metal fixing block, 706-rowing guide rail, 8-personnel fixing mechanism, 801-second automatic telescopic rod, 802-slide rail. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] like Figure 1-Figure 6 As shown, an intelligent rowing machine in one embodiment of the present invention includes a resistance system 1 and a foot pad 201. The resistance system 1 is used to exercise the rowing posture, and the foot is fixed by the foot pad 201.

[0034] An intelligent rowing machine also includes an emergency rescue system 7, a protective cushion assembly 3, a personnel fixing mechanism 8, a moving assembly 4 and an oxygen supply system 5. One end surface of the resistance system 1 is fixedly connected to the emergency rescue system 7. When a fitness person suddenly falls ill and is in a coma, the emergency rescue system 7 supports and accommodates the person to prevent the person from directly contacting the ground and causing greater harm.

[0035] The upper end face of the emergency rescue system 7 is slidably connected to the protective cushion assembly 3, and the bottom end face of the protective cushion assembly 3 is connected to the driving mechanism 6. The driving mechanism 6 drives the protective cushion assembly 3 to move, so that the fitness personnel can exercise on the protective cushion assembly 3. When the person is in a coma, the driving mechanism 6 can control the protective cushion assembly 3 to move to the person's head for protection to prevent the person's head from being injured.

[0036] A pair of opposite end faces of the emergency rescue system 7 are fixedly connected to the personnel fixing mechanism 8. When the emergency rescue system 7 is operated to transport personnel to the emergency site to meet up with the emergency personnel, the personnel are fixed by the personnel fixing mechanism 8 to prevent the personnel from shaking during the illness and causing conditions that are not conducive to the condition of the disease.

[0037] The mobile component 4 can be raised and lowered and fixedly connected to the bottom end surface of the emergency rescue system 7. The movement of the emergency rescue system 7 is controlled by the mobile component 4, so that the fast-moving personnel can be mixed with the first aid personnel.

[0038] The oxygen supply system 5 includes an oxygen tank, which is connected to the emergency rescue system 7 to supply oxygen. When the fitness person has difficulty breathing, the oxygen supply system 5 can be started to supply oxygen, so that the person can breathe oxygen quickly and alleviate the condition.

[0039] Furthermore, the automatic foot pad tensioning system 2 includes an automatic tensioning airbag 202, in which an automatic inflation component is arranged, and a start button is arranged on the bottom end face of the automatic tensioning airbag 202, and the start button is connected to the automatic inflation component, and the automatic inflation component starts to output air, and controls the automatic tensioning airbag 202 to expand to wrap the feet of the fitness person and fix them, which is easy to operate. At the same time, when the fitness person falls unconscious, the automatic foot pad tensioning system automatically starts to loosen the feet of the fitness person, so as to help the fitness person relieve foot discomfort.

[0040] One side end face of the resistance system 1 is fixedly connected to a first barless cylinder 203, and the first barless cylinder 203 includes a first slider 206. One side end face of the first slider 206 is fixedly connected to a base 204. The first slider 206 drives the base 204 to move up and down, and the top end face of the base 204 is fixedly connected to the foot pad 201. The movement of the first slider 206 controls the lifting and lowering of the automatic tensioning airbag 202. When the fitness person falls into a coma, the first slider 206 drives the base 204 and the foot pad 201 to rise and fall to a suitable position for the fitness person's feet when the unconscious person lies flat on the upper side end face of the emergency rescue system 7, and then stops, and starts to release the automatic tensioning airbag 202 to lightly wrap the fitness person's feet.

[0041] When a fitness person suddenly falls into a coma, a distance sensor and a visual sensor are provided on one side end face of the resistance system 1. The distance sensor detects that the person is currently at an end face closer to the emergency rescue system 7, and the visual sensor finds that the person is in a coma state, thereby starting the automatic foot pad tensioning system 2 to transport the fitness person's feet upward to a suitable position, so that the fitness person can lie flat on the top end face of the emergency rescue system 7, and his feet and legs are always in a comfortable state, which is convenient for his recovery.

[0042] Among them, the visual sensor has preset photos of various types of people in coma and sudden illness, so as to judge the state of the people in time and take corresponding measures.

[0043] like Figure 2-Figure 4 As shown, the emergency rescue system 7 includes a rowing rail 706 , a first automatic telescopic plate 7011 , a pair of second automatic telescopic plates 702 and a pair of third automatic telescopic plates 704 .

[0044] The rowing rail 706 is fixedly connected to one side end surface of the resistance system 1, and a protective cushion assembly 3 is slidably connected to the rowing rail 706. The fitness person slides on the rowing rail 706 through the protective cushion assembly 3 to exercise.

[0045] Furthermore, a limit hole 101 is provided on one end face of the resistance system 1, and an electromagnet assembly is fixedly connected in the limit hole 101. A metal fixing block 705 is fixedly connected to one end face of the rowing guide rail 706. The metal fixing block 705 is magnetically connected to the electromagnet assembly, so that when the rowing guide rail 706 needs to be transported separately, the magnetic connection between the metal fixing block 705 and the electromagnet assembly can be disconnected to control the movement of the rowing guide rail 706.

[0046] A pair of opposite end surfaces of the rowing guide rail 706 are fixedly connected to the first automatic telescopic plate 7011, and the outer end surface of the first automatic telescopic plate 7011 is fixedly connected to the outer protective plate 701. The first automatic telescopic plate 7011 is telescoped on a pair of opposite end surfaces of the rowing guide rail 706 to expand it into an ambulance bed board that is convenient for accommodating fitness personnel. The fitness personnel lie on the ambulance bed board composed of the rowing guide rail 706 and the first automatic telescopic plate 7011, which is convenient for their transportation and first aid measures.

[0047] The outer protection plate 701 is connected to the second automatic retractable plate 702 by rotating through the automatic rotating mechanism 703. When the fitness person exercises, refer to Figure 1 As shown, the second automatic retractable plate 702 is attached to the outer end surface of the outer protective plate 701. When the fitness person becomes unconscious, the automatic rotation mechanism 703 controls the second automatic retractable plate 702 to rotate until the second automatic retractable plate 702 and the outer protective plate 701 are in a 90° vertical state.

[0048] Preferably, the second automatic retractable plate 702 includes a first gear and a second gear, the first gear is fixedly connected to one side end face of the second automatic retractable plate 702, the second gear is fixedly connected to one side end face of the outer protective plate 701, the first gear and the second gear are meshed, and the second gear is connected to the motor through a rotating shaft, and the rotation of the first gear and the second gear is controlled by the motor, thereby controlling the up and down movement of the second automatic retractable plate 702.

[0049] A pair of third automatically retractable plates 704 are fixedly connected to the opposite end surfaces of a pair of second automatically retractable plates 702. The pair of third automatically retractable plates 704 can be extended and retracted. The pair of third automatically retractable plates 704 can be extended and fit together to form a closed space for the upper part of the fitness person lying on the rowing rail 706 to protect them and prevent the external environment from causing harm to the fitness person when the emergency rescue system 7 moves.

[0050] The second automatic telescopic plate 702 and the first automatic telescopic plate 7011 are both connected to the first oxygen supply pipe and the second oxygen supply pipe. A plurality of first air holes are arranged on one side end face of the second automatic telescopic plate 702. The first oxygen supply pipe is connected to the first nozzle. The first nozzle is fixedly connected to the first air hole. The first oxygen supply pipe and the second oxygen supply are connected to the oxygen tank in the oxygen supply system 5 to supply oxygen to the first nozzle. When the fitness person suffers from hypoxia, the oxygen supply system 5 can be controlled to start and transport oxygen.

[0051] The personnel fixing mechanism 8 includes a second automatic telescopic rod 801 and a slide rail 802. The slide rail 802 is set on a pair of second automatic telescopic plates 702. A second barless cylinder is connected to the groove wall of the slide rail 802. The second barless cylinder includes a second slider. The second slider is fixedly connected to the second automatic telescopic rod 801, and the second automatic telescopic rod 801 is driven to move up and down by the second slider. A second distance sensor is set on one side end face of the second automatic telescopic plate 702. When the person lies on the rowing guide rail 706, the second slider can be controlled to drive the second automatic telescopic rod 801 to move up and down so that the second automatic telescopic rod 801 can abut against the upper side end face of the person. The pair of second automatic telescopic rods 801 are started and extended until the pair of second automatic telescopic rods 801 fit each other, and then they begin to be fixed to prevent the person's body from shaking during the disease process, which may be unfavorable to the condition.

[0052] The protective cushion assembly 3 includes a protective cushion 301, to which a protective airbag 302 is fixedly connected. The protective airbag 302 can protect the waist of the fitness person, making it convenient for the fitness person to exercise. At the same time, when the person becomes unconscious, the driving mechanism 6 is started to control the protective cushion assembly 3 to move until the person's head lies on the protective cushion 301, and the protective airbag 302 protects the person's head.

[0053] The protective cushion 301 is provided with a plurality of second ventilation holes, and a second nozzle is fixedly connected to the second ventilation holes, and the second nozzle is connected to a second oxygen supply pipe. When a person has difficulty breathing and needs oxygen, the oxygen supply system 5 can be started to supply oxygen through the second nozzle, so as to facilitate better breathing of the person and alleviate the condition.

[0054] The bottom end surface of the first automatic telescopic plate 7011 is fixedly connected to the moving component 4, so that the movement of the emergency rescue system 7 is controlled by the moving component 4. When there is a need to meet with rescue personnel, the emergency rescue system 7 can be moved by the moving component 4.

[0055] The mobile component 4 includes a first automatic telescopic rod 401 and a universal wheel 402. The bottom end surface of the first automatic telescopic plate 7011 is fixedly connected to multiple first automatic telescopic rods 401. The bottom end surface of the first automatic telescopic rod 401 is fixedly connected to the universal wheel 402. When the emergency rescue system 7 needs to be moved, the first automatic telescopic rod 401 can be started to descend and rise to a position convenient for moving the emergency rescue system 7, so as to quickly transport personnel for first aid and save every second before the condition is alleviated.

[0056] When using, Figure 1 As shown, a fitness person can sit on the protective seat 301 and perform sliding fitness on the rowing rail 706 .

[0057] like Figure 2As shown, when the fitness person is in a coma, the automatic rotation mechanism 703 starts to control the second automatic telescopic plate 702 to move upward to a vertical state with the outer protective plate 701 to protect the unconscious person. At the same time, the first automatic telescopic plate 7011 is started and extends outward to a space where the unconscious person can lie flat. At this time, the unconscious person lies flat on the rescue bed board formed by the emergency rescue system 7, and the people nearby can check and rescue the unconscious person, so that the unconscious person can be rescued in a safe environment.

[0058] like Figure 4 As shown, when the unconscious person on the rowing rail 706 needs to be reunited with the emergency personnel, the person is fixed by raising and lowering the second automatic telescopic rod 801 to prevent the person's body from shaking during the disease process, which may be detrimental to the condition.

[0059] like Figure 5 As shown, when the unconscious person needs to be moved outward, a pair of third automatic retractable plates 704 can be activated to retract until the pair of third automatic retractable plates 704 fit together, so as to protect the unconscious person above the rowing rail 706 from being impacted by the external environment, and when the unconscious person has difficulty breathing, the oxygen supply system 5 is activated to output oxygen through the first nozzle and the second nozzle, so as to help the unconscious person to alleviate the current predicament in time.

[0060] like Figure 6 When the unconscious person needs to be transferred, the rowing guide rail 706 can be pulled outward until the metal fixing block 705 leaves the electromagnet assembly in the limiting hole 101, so that the emergency rescue system 7 can be moved outward.

[0061] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent rowing machine, comprising a resistance system and a foot pad, characterized in that: Also includes; An emergency rescue system, one end surface of the resistance system is fixedly connected to the emergency rescue system, and the emergency rescue system supports and accommodates personnel; A protective cushion assembly, wherein the upper end surface of the emergency rescue system is slidably connected to the protective cushion assembly, and the bottom end surface of the protective cushion assembly is connected to a driving mechanism, and the driving mechanism drives the protective cushion assembly to move; A personnel fixing mechanism, a pair of opposite end surfaces of the emergency rescue system are fixedly connected to the personnel fixing mechanism; A mobile component that can be raised and lowered and fixedly connected to the bottom end surface of the emergency rescue system; The oxygen supply system comprises an oxygen tank, and the oxygen tank is connected to the emergency rescue system to supply oxygen.

2. The intelligent rowing machine according to claim 1, characterized in that: The automatic foot pad tensioning system comprises an automatic tensioning airbag, and an automatic inflation component is arranged in the automatic tensioning airbag.

3. The intelligent rowing machine according to claim 1, characterized in that: One side end surface of the resistance system is fixedly connected to a first barless cylinder, the first barless cylinder includes a first slider, one side end surface of the first slider is fixedly connected to a base, and the top end surface of the base is fixedly connected to a foot pad.

4. The intelligent rowing machine according to claim 1, characterized in that: The emergency rescue system includes: A rowing rail, fixedly connected to one end surface of the resistance system; A first automatic telescopic plate, a pair of opposite end surfaces of the rowing guide rail are fixedly connected to the first automatic telescopic plate, and an outer end surface of the first automatic telescopic plate is fixedly connected to an outer protective plate; A pair of second automatic telescopic plates, wherein the outer protective plate is rotatably connected to the second automatic telescopic plates via an automatic rotation mechanism; A pair of third automatic telescopic plates are respectively fixedly connected to opposite end surfaces of a pair of second automatic telescopic plates.

5. The intelligent rowing machine according to claim 1, characterized in that: The second automatic telescopic plate and the first automatic telescopic plate are both connected to the first oxygen supply pipe and the second oxygen supply pipe, one side end surface of the second automatic telescopic plate is provided with a plurality of first air holes, the first oxygen supply pipe is connected to the first nozzle, and the first nozzle is fixedly connected to the first air hole.

6. The intelligent rowing machine according to claim 1, characterized in that: The personnel fixing mechanism includes a second automatic telescopic rod and a slide rail, a pair of the second automatic telescopic plates are each provided with a slide rail, a second barless cylinder is connected in the groove wall of the slide rail, the second barless cylinder includes a second slider, and the second slider is fixedly connected to the second automatic telescopic rod.

7. The intelligent rowing machine according to claim 1, characterized in that: The protective seat cushion assembly comprises a protective seat cushion, and a protective airbag is connected to the protective seat cushion.

8. The intelligent rowing machine according to claim 1, characterized in that: The protective seat cushion is provided with a plurality of second air holes, a second nozzle is fixedly connected in the second air holes, and the second nozzle is connected to a second oxygen supply pipe.

9. The intelligent rowing machine according to claim 1, characterized in that: A limiting hole is provided on one end surface of the resistance system, an electromagnet assembly is fixedly connected in the limiting hole, a metal fixing block is fixedly connected on one end surface of the rowing guide rail, and the metal fixing block is magnetically connected to the electromagnet assembly.

10. The intelligent rowing machine according to claim 1, characterized in that: The bottom end surface of the first automatic telescopic plate is fixedly connected to a moving component, and the moving component includes a first automatic telescopic rod and a universal wheel. The bottom end surface of the first automatic telescopic plate is fixedly connected to multiple first automatic telescopic rods, and the bottom end surface of the first automatic telescopic rod is fixedly connected to the universal wheel.

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