Standing assisting chair and safety belt

Abstract

The utility model discloses a standing assistance chair and a safety belt, which comprise a control system, a movable base table and an inverted U-shaped support frame fixedly arranged at the rear part of the base table, a plurality of first telescopic rods are rotatably arranged on two vertical rods of the inverted U-shaped support frame, and two adjacent first telescopic rods are rotatably connected through a second telescopic rod. One end of a third telescopic rod is rotatably arranged on the front portion of the base table, the other end of the third telescopic rod is rotatably connected with a first telescopic rod arranged on the lowermost portion of the vertical rod, one end of a connecting rod is fixedly connected to the lower portion of a telescopic rod suction cup with magnetic force, and the other end of the connecting rod is movably connected into an inductor. The inductor is rotatably connected to the top of the first telescopic rod. The standing assisting device is simple in structure, flexible and convenient to use and low in cost, can assist in standing and move freely for workers needing to keep standing for a long time, and effectively reduces adverse effects on all parts of the body due to long-time standing.

Description

Technical Field

[0001] The utility model belongs to the field of human standing auxiliary equipment, in particular to a standing auxiliary chair and a safety belt used in conjunction with the standing auxiliary chair. Background Art

[0002] In some industries and types of work, workers need to stand for a long time, such as operators on production lines and surgeons. Standing for a long time will have a series of adverse effects on physical health. First of all, it will increase the pressure on the soles of the feet, such as easily leading to plantar fasciitis and muscle strain, and in severe cases, varicose veins in the lower limbs, joint injuries, and lower limb edema. In addition, long-term standing will cause tension in the waist and back muscles, which will lead to long-term increase in the force on the lumbar spine, resulting in lumbar disc herniation, low back pain, numbness of the lower limbs, and limited mobility. At present, most of the equipment on the market that provides auxiliary assistance for standing is basically used for patient rehabilitation training or for the elderly with mobility difficulties. There is a lack of products such as power-assisted standing chairs that can provide support for long-term standing work without affecting activities. Summary of the invention

[0003] In view of the above problems, the utility model proposes a standing assisting chair and a safety belt. Through the utility model, workers who need to stand for a long time are provided with a standing assisting device that allows free movement and effectively reduces the adverse effects of standing for a long time on various parts of the body.

[0004] The utility model is implemented as follows: a standing power-assisted chair, comprising a control system, a movable base, an inverted U-shaped support frame fixedly arranged at the rear of the base, one end of a plurality of first telescopic rods rotatably connected to two vertical rods of the inverted U-shaped support frame, two adjacent first telescopic rods are rotatably connected via a second telescopic rod, one end of a third telescopic rod is rotatably arranged at the front of the base, and the other end is rotatably connected to the adjacent first telescopic rod, the other end of the first telescopic rod is rotatably connected to an inductor, one end of the connecting rod is fixedly connected to the bottom of a telescopic rod suction cup made of an electro-permanent magnetic material, and the other end is movably connected in the inductor, the inductor is electrically connected to the control system, three power switches are arranged on the base, and four steering wheels with locking and unlocking functions are arranged below.

[0005] Furthermore, the sensor includes a rectangular box body, the inner wall of the box body is symmetrically provided with grooves, and a plurality of annular wire grooves for placing wires A are evenly provided around the inner wall of the box body, and the copper contacts of the wires A are arranged in the wire grooves in the grooves, and the connecting rod passes through the top of the box body and the upper spring and is fixedly connected to the upper surface of the movable plate that can move up and down in the box, one end of the lower spring is fixedly connected to the lower surface of the movable plate, and the other end is fixedly connected to the bottom of the box body; the shape of the movable plate matches the shape of the internal space of the box body, including a large rectangular plate in the middle and two small rectangular plates matching the grooves, and three pairs of wires B are arranged at the contact ends of the small rectangular plates and the grooves, and the three pairs of wires B respectively match the copper contacts at different positions, and the sensor, the telescopic rod suction cup and the control system are electrically connected.

[0006] Furthermore, the first telescopic rod, the second telescopic rod, and the third telescopic rod have the same structure, and all include an outer rod, an inner rod, and a fixer, one end of the fixer is fixedly connected to the outer side of the outer rod near one end of the inner rod, and a suction cup made of an electro-permanent magnetic material is provided on the surface of the fixer facing the inner rod, the suction cup is in contact and connected with the magnetic metal wire wrapped around the inner rod, and the fixer is electrically connected to the control system.

[0007] Furthermore, eight first telescopic rods are provided, which are symmetrically arranged on the two vertical rods of the support frame, one at the upper part of each vertical rod is used to support the head, two in the middle part are used to support the waist and back, and one in the lower part is used to support the buttocks.

[0008] Furthermore, the suction cup is made of electro-permanent magnetic material, including a large downward-pressing suction cup and a small upward-pull suction cup for supporting the buttocks. The length ratio of the upper spring and the lower spring of the large suction cup is 2:3, and the length ratio of the upper spring and the lower spring of the small suction cup is 3:2.

[0009] Furthermore, the rotatable connection is a ball joint connection.

[0010] Furthermore, the control system, rechargeable battery, and charging port are arranged in the base.

[0011] A safety belt, based on any one of the above-mentioned standing power-assisting chairs, the safety belt is used in conjunction with the standing power-assisting chair, the safety belt comprises a No. 1 head safety belt for fixing the head and a No. 2 safety belt for fixing the body, the No. 2 safety belt is wearable, and is connected into two "well" shapes by two transverse belts for binding the upper body and two longitudinal belts, the ends of the longitudinal belts are fixed on the leggings, the sizes of the transverse belts, longitudinal belts and leggings are adjustable, the No. 1 safety belt and the No. 2 safety belt are provided with a magnetic metal sheet matching the telescopic rod suction cup, a light that can emit light that penetrates clothes is provided near the magnetic metal sheet, and the safety belt can be buckled and opened, and the thickness and length can be adjusted.

[0012] Furthermore, two magnetic metal sheets are arranged on one side of the back of the annular belt head of the No. 1 safety belt, two magnetic metal sheets are arranged on one side of the back of one of the two transverse belts, a light that can penetrate clothing is arranged on one side of the magnetic metal sheet, and a battery compartment for powering the light is arranged between the two magnetic metal sheets;

[0013] The longitudinal belt is provided with the magnetic metal sheet at the hip position, and the light that can penetrate clothes is arranged on one side of the magnetic metal sheet.

[0014] Furthermore, the No. 1 safety belt is in the shape of a hat composed of multiple straps connected vertically and horizontally, including an annular belt wrapped around the upper part of the head, a cross-strap fixedly connected to the annular belt and worn on the top of the head, two fixed straps located on both sides of the ears fixedly connected to the annular belt, and a chin strap wrapped around the two ends of the lower jaw and connected to two ear straps respectively. The annular belt, ear straps and chin strap can all be adjusted in length.

[0015] The beneficial effects of the utility model are as follows: the utility model is ingenious in conception, simple in structure, flexible and convenient to use, and low in cost. The multiple retractable and rotatable support rods with suction cups arranged on the support frame of the utility model form a support system for the human body from the head to the buttocks; the sensors, the fixers and the control system form the control and adjustment system of the utility model, and combined with the use of the safety belt, it provides a kind of assisted standing and free movement for workers who need to stand for a long time, effectively reducing the adverse effects of standing for a long time on various parts of the body.

[0016] The present invention is further explained in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the sensor and the suction cup of the utility model;

[0019] Figure 3 This is a schematic diagram of the small suction cup and sensor structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the large suction cup and the sensor of the utility model;

[0021] Figure 5 It is a schematic diagram of the internal shape structure and wire wiring of the box body of the utility model sensor;

[0022] Figure 6 This is a schematic diagram of the structure of the movable plate and the wiring of the electric wires of the utility model;

[0023] Figure 7 This is a schematic diagram of the telescopic rod structure of the utility model

[0024] Figure 8 It is a schematic diagram of the structure of the fixer of the utility model;

[0025] Fig. 9 This is a schematic diagram of the ball joint structure of the utility model;

[0026] Fig.10 This is a schematic diagram of the base structure of the utility model;

[0027] Fig.11 This is a schematic diagram of the front structure of the safety belt of the utility model;

[0028] Fig.12 It is a schematic diagram of the back structure of the safety belt of the utility model;

[0029] Fig.13 It is a schematic diagram of the use state of the utility model.

[0030] In the figure:

[0031] 1 base platform; 2 inverted U-shaped support frames, 21 vertical rods;

[0032] 3 first telescopic rod, 4 second telescopic rod, 5 third telescopic rod, 61 outer rod, 62 inner rod, 63 magnetic metal wire, 64 fixer, 65 fixer suction cup; 7 telescopic rod suction cup, 71 large suction cup, 711 cushion, 72 small suction cup;

[0033] 8-ball joint;

[0034] 9 sensor, 91 box body, 911 groove, 912 wire groove, 92 connecting rod, 93 movable plate, 931 large rectangular plate, 932 small rectangular plate, 94 large suction cup upper spring, 95 large suction cup lower spring, 96 wire A, 961 copper contact, 97 wire B;

[0035] 10 control system, 100 steering wheel, 101 switch No. ①, 102 switch No. ②, 103 switch No. ③, 104 charging port; 11 rechargeable battery;

[0036] 12 seat belt, 121 No. 1 seat belt, 1211 ring belt, 1212 cross belt, 1213 ear strap, 1214 chin strap;

[0037] 122 No. 2 safety belt, 1221 transverse belt, 1222 longitudinal belt, 1223 leggings;

[0038] 13 magnetic metal sheet, 14 light, 15 battery compartment. DETAILED DESCRIPTION

[0039] Embodiment 1:

[0040] This embodiment is a standing power-assisted chair. Figures 1 to 7 and Fig.10 As shown, it includes a control system 10, a movable base 1, and an inverted U-shaped support frame 2 fixedly arranged at the rear of the base 1, characterized in that one end of a plurality of first telescopic rods 3 is rotatably connected to the two vertical rods 21 of the inverted U-shaped support frame 2, two adjacent first telescopic rods 3 are rotatably connected through a second telescopic rod 4, one end of a third telescopic rod 5 is rotatably arranged at the front of the base 1, and the other end is rotatably connected to the adjacent first telescopic rod 3, the other end of the first telescopic rod 3 is rotatably connected to a sensor 9, one end of a connecting rod 92 is fixedly connected to the bottom of a telescopic rod suction cup 7 made of an electro-permanent magnetic material, and the other end is movably connected in the sensor 9, and the sensor 9 is electrically connected to the control system 10. The platform base 1 is provided with three power switches, among which switch ① 101 is the main power switch; switch ② 102 is used to control the telescopic rod suction cup 7, when switch ② 102 is turned on, all the telescopic rod suction cups 7 are instantly magnetized, and when switch ② is turned off, all the telescopic rod suction cups 7 are instantly demagnetized; switch ③ 103 is the walking switch, when switch ③ is turned on, the steering wheel is unlocked, the fixer suction cups on the two first telescopic rods at the waist are magnetized, and the fixer suction cups on other telescopic rods are demagnetized, and the staff can pull the entire standing power-assisted chair for short distances by the two telescopic rods at the waist, and when switch ③ is turned off, the steering wheel is locked, the fixer suction cups on all telescopic rods are demagnetized, and the entire standing power-assisted chair becomes immovable.

[0041] The sensor 9 includes a rectangular box body 91, the inner wall of the box body 91 is symmetrically provided with grooves 911, and a plurality of annular wire grooves 912 for placing wires A 96 are evenly provided around the inner wall of the box body 91, and the copper contact 961 of the wire A 96 is arranged in the groove 911. The connecting rod 92 passes through the top of the box body 91 and the upper spring 94 and is fixedly connected to the upper surface of the movable plate 93 in the box that can move up and down, and one end of the lower spring 95 is fixedly connected to the lower surface of the movable plate 93, and the other end is fixedly connected to the bottom of the box body 91; the shape of the movable plate 93 matches the shape of the internal space of the box body 91, including a large rectangular plate 931 in the middle and two small rectangular plates 932 matching the groove 911, and the contact end of the small rectangular plate 932 with the groove 911 is provided with three pairs of wires B 97, and the three pairs of wires B 97 are respectively matched with the copper contacts 961 at different positions, and the sensor 9, the telescopic rod sucker 7 and the control system 10 are electrically connected.

[0042] like Figure 1 , Figure 6 , Figure 7 , Fig.10 As shown, the first telescopic rod 3, the second telescopic rod 4, and the third telescopic rod 5 have the same structure, and all include an outer rod 61, an inner rod 62, and a fixer 64, one end of the fixer 64 is fixedly connected to the outer side of the outer rod 61 close to one end of the inner rod 62, and a fixer suction cup 65 is provided on the surface of the fixer 64 facing the inner rod 62, and the fixer suction cup 65 is in contact with and connected to the magnetic metal wire 63 wrapped around the outer side of the inner rod 62, and the fixer 64 is electrically connected to the control system 10.

[0043] like Figure 1 , Fig.10 As shown, eight first telescopic rods 3 are provided, which are symmetrically arranged on the two vertical rods 21 of the support frame 2, and the upper part of each vertical rod 21 is used to support the head, the two middle parts are used to support the back and waist, and one is used to support the buttocks.

[0044] like Figure 1 , Figure 3 , Figure 4As shown, according to the characteristics of the body parts, the telescopic rod suction cup 7 includes a large suction cup 71 for supporting the buttocks and a small suction cup 72 for supporting other parts. The working principle and main structure of the large suction cup 71 and the small suction cup 72 are the same. The length ratio of the upper spring 94 and the lower spring 95 of the large suction cup 71 is 2:3, and the length ratio of the upper spring 94 and the lower spring 95 of the small suction cup 72 is 3:2. The large suction cup 71 adds a circle of cushions 711 with a certain hardness around the small suction cup 72, which increases the contact area with the buttocks, which is convenient for supporting the buttocks and improves the comfort. The rotatable connection is connected by a ball joint 8, which can realize 360° flexible rotation.

[0045] The control system 10 and the rechargeable battery 11 are arranged in the base 1. A charging port 104 is arranged on one side of the base 1 for charging the rechargeable battery 11. Four steering wheels 100 are arranged at the bottom, and the steering wheels 100 can control locking and unlocking.

[0046] Embodiment 2:

[0047] A safety belt, based on the first embodiment, is used in conjunction with the standing power-assisting chair, such as Figures 8 to 10 The safety belt includes a No. 1 head safety belt 121 for fixing the head and a No. 2 safety belt 122 for fixing the body. The No. 2 safety belt 122 is wearable, and is connected into two "well" shapes by two transverse belts 1221 for binding the upper body and two longitudinal belts 1222. The ends of the longitudinal belts 1222 are fixed on the leggings 1223. The sizes of the transverse belts 1221, the longitudinal belts 1222 and the leggings 1223 are adjustable. The No. 1 safety belt 121 and the No. 2 safety belt 122 are provided with a magnetic metal sheet 13 that matches the telescopic rod suction cup 7. A light 14 that can emit light that penetrates clothes is provided near the magnetic metal sheet 13. The safety belt can be buckled and opened, and the thickness and length can be adjusted.

[0048] The annular belt 1211 of the No. 1 safety belt 121 is provided with two magnetic metal sheets 13 on one side behind the head, one of the two transverse belts 1221 is provided with two magnetic metal sheets 13 on one side of the back, the light 14 is provided on one side of the magnetic metal sheet 13, and the battery compartment 15 for powering the light 14 is provided between the two magnetic metal sheets 13;

[0049] The longitudinal belt 1222 is provided with the magnetic metal sheet 13 at the hip position, and the light 14 is provided on one side of the magnetic metal sheet 13 .

[0050] The No. 1 safety belt 121 is in the shape of a hat composed of multiple straps connected vertically and horizontally, including an annular belt 1211 wrapped around the upper part of the head, a cross belt 1212 fixedly connected to the annular belt 1211 and worn on the top of the head, two fixed belts 1213 fixedly connected to the annular belt 1211 and located on both sides of the ears, and a chin strap 1214 wrapped around the two ends of the lower jaw and connected to the two ear straps 1213 respectively. The annular belt 1211, the ear straps 1213 and the chin strap 1214 can all be adjusted in length.

[0051] The working principle of the utility model is as follows: a plurality of open wires A 96 are arranged in the wire groove 912 surrounding the inner wall of the box body 91, and copper contacts 961 are arranged at both ends of each wire A 96, and the copper contacts 961 are arranged in the groove 911 on one side, and three pairs (six) of wires B 97 are arranged at the end of the small rectangular plate 932 on the side of the movable plate 93 close to the copper contacts 961, and the wires B97 are connected to the sucker 7 upward along the connecting rod 92. When the suction cup 7 has a pressure change, the connecting rod 92 drives the movable plate 93 to move up and down, and the wires B 97 contact the copper contacts 961 at different positions, and the circuit is closed and connected at different positions. After being connected, according to the system program setting, the control system 10 issues different instructions to magnetize or demagnetize the fixer sucker 65, so as to realize the locking or unlocking function of the telescopic rod.

[0052] For large suction cup 71:

[0053] The large suction cup 71 has an upward supporting effect on the buttocks. When in use, the assistant turns on the switch 102, the control system 10 emits an instantaneous current, the large suction cup 71 is magnetized, and the assistant puts the large suction cup 71 and the magnetic metal sheet 13 on the hip safety belt close together. An unclosed wire A 96 is set in the wire groove 912 inside the large suction cup 71. The two ends of the wire A 96 are copper contacts 961. When the buttocks sit on the large suction cup 71, the sensor 9 is pressed, the movable plate 93 moves downward, and the wire B 97 set at the end of the small rectangular plate 932 touches the copper contact 961. According to the setting and use of the control system, the control system issues different instructions and provides different processing solutions.

[0054] Generally, the staff slowly sits on the large suction cup 71 and applies pressure to the sensor 9, so that the movable plate 93 moves downward, and the wire B 97 set at the end of the small rectangular plate 932 touches the copper contact 961 in the middle area (except the bottom and the top). The control system is set that when a copper contact in the middle area stays for more than 3 seconds, the circuit is closed and connected. The control system 10 receives the information and sends it to the first telescopic rod 3 connected to the sensor and the second telescopic rod 4 and the third telescopic rod 5 on the fixing suction cup 65, so that the corresponding fixing suction cup 65 is magnetized, thereby locking the corresponding telescopic rod (the first telescopic rod 3 related to the large suction cup 71 and the second telescopic rod 4 and the third telescopic rod 5 connected to the large suction cup 71 can ensure that the position of the large suction cup 71 is fixed after being locked at the same time). If the staff is in a hurry to sit down, they will quickly press the movable plate 93 to the bottom of the box body 91, and the wire B 97 will touch the copper contact 961 at the bottom. The control system is set that when the wire B 97 touches the copper contact 961 at the bottom, it does not need to stay for more than 3 seconds, and the circuit is instantly closed and connected. The control system 10 receives the information and sends it to the first telescopic rod 3 connected to the sensor and the second telescopic rod 4 and the third telescopic rod 5 on the fixing sucker 65, so that the corresponding fixing sucker 65 is magnetized, thereby locking the corresponding telescopic rod. When the staff needs to adjust the position, they lift their buttocks, driving the movable plate 93 to move up to the top and touch the copper contact 961 on the top. The control system is set. When the wire B 97 touches the copper contact 961 on the top, it does not need to stay for more than 3 seconds. The circuit is instantly closed and connected. The control system 10 receives the information and sends it to the first telescopic rod 3 connected to the sensor and the second telescopic rod 4 and the third telescopic rod 5 connected to the first telescopic rod 3. The fixer sucker 65 demagnetizes the corresponding fixer sucker 65, thereby unlocking the corresponding telescopic rod (the first telescopic rod 3 and the second telescopic rod 4 and the third telescopic rod 5 connected to the first telescopic rod 3 are unlocked at the same time to ensure that the position of the large sucker 71 can be moved). It should be noted that the wire B97 at one end of the small rectangular plate 932 is set in three pairs, one inner pair, one outermost pair and one middle pair. The three pairs of wires match and correspond to the copper contacts 961 of the wires arranged in the wire slots 912 in the top, bottom and middle areas of the box body 91.

[0055] The length of the upper spring 94 in the sensor 9 of the large suction cup 71 is smaller than that of the lower spring 95, and the ratio of the upper spring 94 to the lower spring 95 is 2:3.

[0056] For small suction cup 72:

[0057] The working principle of the small suction cup 72 is basically the same as that of the large suction cup 71. The small suction cup 72 acts on the head and waist and back, and has the effect of pulling the head and waist upward and backward, thereby reducing the fatigue caused by bowing the head and bending the waist for a long time.

[0058] The length of the upper spring 94 in the sensor 9 of the small suction cup 72 is greater than the lower spring 95, and the ratio of the upper spring 94 to the lower spring 95 is 3:2. When the staff lowers their heads and bends, the sensor 9 is pulled, the movable plate 93 moves upward, and the wire B 97 set at the end of the small rectangular plate 932 touches the copper contact 961 in the middle area (except the bottom and the top). The control system is set that when a copper contact in the middle area stays for more than 3 seconds, the circuit is closed and connected. The control system 10 receives the information and sends it to the first telescopic rod 3 connected to the sensor and the fixer sucker 65 on the second telescopic rod 4 rotatably connected to the first telescopic rod 3, so that the corresponding fixer sucker 65 is magnetized, thereby locking the corresponding telescopic rod (the first telescopic rod 3 and the second telescopic rod 4 rotatably connected to it are locked at the same time to ensure that the position of the small suction cup 72 is fixed). When the staff member leans forward quickly, the movable plate 93 moves quickly to the top of the box body 91, and the wire B 97 touches the copper contact 961 on the top. The control system is set that when the wire B97 touches the copper contact 961 on the top, it does not need to stay for more than 3 seconds, and the line is instantly closed and connected. The control system 10 receives the information and sends it to the first telescopic rod 3 connected to the sensor and the fixer suction cup 65 on the second telescopic rod 4 rotatably connected to the first telescopic rod 3, so that the corresponding fixer suction cup 65 is magnetized, thereby locking the corresponding telescopic rod. When the staff needs to adjust the position of the head, back, and waist, they lean back the corresponding body parts, the movable plate 93 moves to the bottom, and the wire B 97 touches the copper contact 961 at the bottom. The control system is set, and when the wire B 97 touches the copper contact 961 at the bottom, it does not need to stay for more than 3 seconds, and the line is instantly closed and connected. The control system 10 receives the information and sends it to the first telescopic rod 3 connected to the sensor and the fixer sucker 65 on the second telescopic rod 4 rotatably connected to the first telescopic rod 3, so that the corresponding fixer sucker 65 is demagnetized, thereby unlocking the corresponding telescopic rod (after the first telescopic rod 3 and the second telescopic rod 4 rotatably connected thereto are unlocked at the same time, the position of the small sucker 72 can be guaranteed to be movable).

[0059] The method of using the utility model is:

[0060] 1) The staff should wear safety belts in accordance with regulations and stand in front of the standing power chair;

[0061] 2) The assistant turns on the main power switch, i.e. switch ①;

[0062] 3) The assistant turns on power supply No. ②, and the control system 10 transmits instantaneous current information to each telescopic rod suction cup, and each telescopic rod suction cup 7 is magnetized. Under the guidance of the light 14, the assistant puts each telescopic rod suction cup 7 against the magnetic metal sheet 13 on the safety belt one by one, so that each telescopic rod suction cup 7 is tightly attracted to the corresponding magnetic metal sheet 13.

[0063] 4) After adjusting the position of the head, back, waist and hips, the staff squats slightly and remains motionless for more than 3 seconds. The control system 10 sends an instantaneous current signal to the fixing suction cups 65 on each telescopic rod, so that each fixing suction cup 65 is magnetized and each telescopic rod is locked;

[0064] 5) When the staff needs to adjust the hip position, the hip is lifted, the movable plate 93 moves up to the top, and the wire B 97 touches the top copper contact 961. The control system is set so that when the wire B 97 touches the top copper contact 961, it does not need to stay for more than 3 seconds, and the line is instantly closed and connected. The control system receives the information and sends it to the first telescopic rod connected to the sensor and the second and third telescopic rods rotatably connected to the first telescopic rod, so that the corresponding fixer sucker is demagnetized, thereby unlocking the corresponding telescopic rod (the first telescopic rod and the second and third telescopic rods rotatably connected to the first telescopic rod are unlocked at the same time to ensure that the position of the large sucker can be moved). When the staff needs to adjust the position of the head, back, and waist, the corresponding body part leans back, the movable plate moves to the bottom, and the wire B 97 touches the copper contact 961 at the bottom. The control system is set, and when the wire B 97 touches the copper contact 961 at the bottom, it does not need to stay for more than 3 seconds, and the line is instantly closed and connected. The control system receives the information and sends it to the first telescopic rod connected to the sensor and the fixer sucker on the second telescopic rod rotatably connected to the first telescopic rod, so that the corresponding fixer sucker is demagnetized, thereby unlocking the corresponding telescopic rod (after the first telescopic rod and the second telescopic rod rotatably connected to it are unlocked at the same time, the position of the small sucker can be guaranteed to be movable);

[0065] 6) Since the utility model is movable, the assistant turns on switch ③, the steering wheel is unlocked, the two first telescopic rods at the waist are locked, and the other telescopic rods are unlocked, and the staff can pull the entire standing power-assisted chair for a short distance by the two telescopic rods at the waist; the assistant turns off switch ③, the steering wheel is locked, all telescopic rods are unlocked, and the entire standing power-assisted chair becomes immovable;

[0066] 7) When the work is finished or the worker needs to separate from the telescopic rod suction cup (including the large suction cup and the small suction cup), the assistant turns off switch ②, and the control system sends instantaneous current information to each telescopic rod suction cup, and each telescopic rod suction cup is demagnetized, and the magnetic metal sheet on the worker's safety belt is completely separated from the telescopic rod suction cup.

[0067] 8) After finishing the work, the worker takes off the safety belt; the assistant turns off switch ① and charges the rechargeable battery for next use.

[0068] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A standing power-assist chair, comprising a control system, a movable base (1), and an inverted U-shaped support frame (2) fixedly arranged at the rear of the base (1), characterized in that: One end of a plurality of first telescopic rods (3) is rotatably connected to two vertical rods (21) of the inverted U-shaped support frame (2); two adjacent first telescopic rods (3) are rotatably connected via a second telescopic rod (4); one end of a third telescopic rod (5) is rotatably arranged at the front of the base platform (1); the other end is rotatably connected to the adjacent first telescopic rod (3); the other end of the first telescopic rod (3) is rotatably connected to a sensor (9); one end of a connecting rod (92) is fixedly connected to the bottom of a telescopic rod suction cup (7) having magnetic force; the other end is movably connected to the inside of the sensor (9); the sensor (9) is electrically connected to a control system (10); three power switches are arranged on the base platform (1); and four steering wheels (100) having locking and unlocking functions are arranged below.

2. The standing power-assist chair according to claim 1, characterized in that: The sensor (9) comprises a rectangular box body (91), the inner wall of the box body (91) is symmetrically provided with grooves (911), a plurality of annular wire grooves (912) for accommodating wires A (96) are evenly provided around the inner wall of the box body (91), the copper contact (961) of the wire A (96) is arranged in the wire groove (912) in the groove (911), the connecting rod (92) passes through the top of the box body (91) and the upper spring (94) and is fixedly connected to the upper surface of a movable plate (93) in the box that can move up and down, and one end of the lower spring (95) is fixedly connected to the movable plate (93). The lower surface of the plate (93) is fixedly connected to the bottom of the box body (91) at the other end; the shape of the movable plate (93) matches the shape of the internal space of the box body (91), including a large rectangular plate (931) in the middle and two small rectangular plates (932) matching the groove (911); three pairs of wires B (97) are provided at the contact ends of the small rectangular plates (932) and the groove (911); the three pairs of wires B (97) are respectively matched with the copper contacts (961) at different positions; the sensor (9), the telescopic rod suction cup (7) and the control system (10) are electrically connected.

3. The standing power-assisting chair according to claim 1, characterized in that: The first telescopic rod (3), the second telescopic rod (4), and the third telescopic rod (5) have the same structure, and all comprise an outer rod (61), an inner rod (62), and a fixer (64); one end of the fixer (64) is fixedly connected to the outer side of the outer rod (61) close to one end of the inner rod (62); a fixer suction cup (65) made of an electro-permanent magnetic material is provided on a surface of the fixer (64) facing the inner rod (62); the fixer suction cup (65) is in contact with and connected to a magnetic metal wire (63) wrapped around the inner rod (62); and the fixer (64) is electrically connected to the control system (10).

4. The standing power-assisting chair according to claim 1, characterized in that: Eight first telescopic rods (3) are provided, and are symmetrically arranged on the two vertical rods (21) of the support frame (2), one at the top of each vertical rod (21) for supporting the head, two in the middle for supporting the back and waist, and one at the bottom for supporting the buttocks.

5. The standing power-assisting chair according to claim 2, characterized in that: The telescopic rod suction cup (7) is made of an electro-permanent magnetic material, and comprises a large suction cup (71) for supporting the buttocks in a downward pressing manner and a small suction cup (72) in an upward pulling manner; the length ratio of the upper spring (94) and the lower spring (95) of the large suction cup (71) is 2:3, and the length ratio of the upper spring (94) and the lower spring (95) of the small suction cup (72) is 3:

2.

6. The standing power-assisting chair according to any one of claims 1 to 4, characterized in that: The rotatable connection is achieved by using a ball joint (8).

7. The standing power-assist chair according to claim 1, characterized in that: The control system (10) and the rechargeable battery (11) are arranged in the base platform (1).

8. A safety belt, based on the standing power-assisting chair according to any one of claims 1 to 7, characterized in that: The safety belt comprises a No. 1 head safety belt (121) for fixing the head and a No. 2 safety belt (122) for fixing the body. The No. 2 safety belt (122) is wearable and is composed of two transverse belts (1221) for binding the upper body and two longitudinal belts (1222) connected to form two "well" shapes. The ends of the longitudinal belts (1222) are fixed to the leggings (1223). The sizes of the transverse belts (1221), the longitudinal belts (1222) and the leggings (1223) are adjustable. The No. 1 safety belt (121) and the No. 2 safety belt (122) are provided with a magnetic metal sheet (13) matching the telescopic rod suction cup (7). A lamp (14) capable of emitting light that can penetrate clothing is provided near the magnetic metal sheet (13). The safety belt can be buckled and opened, and the thickness and length can be adjusted.

9. The safety belt according to claim 8, characterized in that: The annular belt (1211) of the No. 1 safety belt (121) is provided with two magnetic metal sheets (13) on one side behind the head, one of the two transverse belts (1221) is provided with two magnetic metal sheets (13) on one side of the back, the light (14) is provided on one side of the magnetic metal sheet (13), and a battery compartment (15) for supplying power to the light (14) is provided between the two magnetic metal sheets (13); the longitudinal belt (1222) is provided with the magnetic metal sheet (13) at the hip position, and the light (14) is provided on one side of the magnetic metal sheet (13).

10. The safety belt according to claim 8, characterized in that: The No. 1 safety belt (121) is in the shape of a hat composed of a plurality of belts connected vertically and horizontally, including an annular belt (1211) surrounding the upper part of the head, a cross belt (1212) fixedly connected to the annular belt (1211) and worn on the top of the head, two fixed belts (1213) fixedly connected to the annular belt (1211) and located on both sides of the ears, and a chin belt (1214) surrounding the two ends of the chin and respectively connected to the two ear belts (1213), wherein the annular belt (1211), the ear belts (1213) and the chin belt (1214) are all adjustable in length.

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