Upper arm power assisting structure for hot-line work

Abstract

The invention discloses an upper arm power assisting structure for hot-line work, and relates to the technical field of electrical equipment, the upper arm power assisting structure comprises an arm support used for supporting an arm and an arm shell, the arm shell is of a cavity structure, a nitrogen cylinder is arranged in a cavity of the arm shell, a piston rod at the front end of the nitrogen cylinder is connected with a steel wire rope, and the other end of the steel wire rope penetrates through the bottom of a pulley; the pulley is fixed to the end, away from the nitrogen cylinder, of the arm shell, one end of the arm shell is rotationally connected with an arm adjusting block, and the steel wire rope penetrates out of the pulley to be fixed to the joint of the arm shell and the arm connecting block. One end of the arm adjusting plate is fixedly connected with the arm support, the other end of the arm adjusting plate is slidably connected with the side wall of the arm shell, and an adjusting button capable of adjusting the length of the arm adjusting plate is arranged on the arm shell. A traditional compression spring is replaced with the gas spring nitrogen cylinder, nonlinear elastic force is provided, the dynamic requirement of human upper limb movement can be better met, and the power assisting effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and in particular to an upper arm assisting structure for live working. Background Art

[0002] Existing exoskeleton support equipment is divided into two types: passive and active; active exoskeletons often require devices such as motors with battery energy sources, and the equipment is too heavy. For live working workers who need to work at high altitudes on utility poles, wearing an active exoskeleton will bring an extra burden; existing passive exoskeleton support equipment usually selects a compression spring at the energy storage structure. The elastic coefficient range of the compression spring has a large limitation, and the elastic force it provides has a linear relationship with the compression amount. In actual operation, its ability to match human movement is not as good as that of a gas spring. In addition, the compression spring is more likely to generate friction with other components in the assisting structure, resulting in a non-smooth and stuck phenomenon during actual operation. Summary of the Invention

[0003] Aiming at the above deficiencies, the present invention provides an upper arm assisting structure for live working. Using a gas spring to replace the traditional compression spring can provide non-linear elastic force, can better match the dynamic requirements of human upper limb movement, and improve the assisting effect. The specific technical solutions are as follows:

[0004] An upper arm assisting structure for live working, comprising:

[0005] An armrest for supporting the arm,

[0006] An arm housing, the arm housing has a cavity structure, a nitrogen cylinder is arranged in the cavity of the arm housing, a wire rope is connected to the piston rod at the front end of the nitrogen cylinder, the other end of the wire rope passes through the bottom of a pulley, the pulley is fixed at one end of the arm housing far from the nitrogen cylinder, and one end of the arm housing is rotatably connected to an arm adjusting block. The wire rope passes through the pulley and is fixed at the connection between the arm housing and the arm connecting block;

[0007] An arm adjusting plate, one end of the arm adjusting plate is fixedly connected to the armrest, and the other end is slidably connected to the side wall of the arm housing, and an adjusting button for adjusting the length of the arm adjusting plate is arranged on the arm housing.

[0008] Preferably, an adjusting slide rail is arranged on the arm adjusting plate, and a plurality of limiting grooves are arranged at intervals above the adjusting slide rail. The limiting grooves are perpendicular to and communicate with the adjusting slide rail, and the adjusting button can slide up and down between the adjusting slide rail and the limiting grooves.

[0009] Preferably, the adjusting button includes an adjusting vertical rod, an elastic member is arranged at the bottom of the adjusting vertical rod, and an adjusting cross rod is fixed on the adjusting vertical rod. The adjusting cross rod is clamped in the limiting groove.

[0010] Preferably, sliding grooves are provided on the upper and lower sides of the side of the arm housing, and both sides of the arm adjusting plate are slidably connected to the sliding grooves.

[0011] Preferably, a connection port is provided at one end of the steel wire rope away from the nitrogen cylinder, which is convenient for fixing the steel wire rope on the pin column where the arm adjusting block is rotatably connected to the arm housing.

[0012] Preferably, one end of the steel wire rope is connected to the front end of the nitrogen cylinder through a connecting ring.

[0013] Preferably, the limiting grooves are arranged at equal intervals.

[0014] Preferably, the supporting arm is in an arc structure, and a strip-shaped hole is provided in the middle of the supporting arm.

[0015] Preferably, the elastic member includes a spring and an elastic column. The upper end of the elastic column is sleeved on the bottom of the adjusting vertical rod, the bottom of the elastic column is fixedly connected to the arm housing, and the spring is fixed between the elastic column and the adjusting vertical rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, the air spring nitrogen cylinder is used to replace the traditional compression spring to provide non-linear elastic force, which can better match the dynamic requirements of the upper limb movement of the human body and improve the assisting effect.

[0018] 2. In the present invention, through the design of the arm adjusting button and the adjusting slide rail, the flexible adjustment of the length of the arm support is realized, which can adapt to the upper limb lengths of different users and improve the wearing comfort and applicability.

[0019] 3. In the present invention, a lightweight design is adopted, and a hollow design with a strip-shaped hole is provided at the arm support to avoid the extra burden brought by the weight of the exoskeleton equipment itself to the wearer.

[0020] 4. In the present invention, the mutual cooperation of the air spring nitrogen cylinder with components such as the steel wire rope and the pulley reduces the friction during operation, ensures the smooth operation of the exoskeleton during the operation process, and avoids the jamming phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 It is the front view of the present invention;

[0023] Figure 2 Top view of the present invention

[0024] Figure 3 Stereogram of the present invention (arm connection block not shown)

[0025] Figure 4 Another angle stereogram of the present invention (arm connection block not shown)

[0026] Figure 5 Schematic diagram of the internal structure of the present invention

[0027] Figure 6 Schematic diagram of the connection structure between the arm adjusting plate and the arm housing of the present invention

[0028] Figure 7 Schematic diagram of the adjusting button structure

[0029] 1 - armrest, 2 - arm housing, 3 - nitrogen cylinder, 4 - steel wire rope, 5 - pulley, 6 - piston rod, 7 - arm adjusting block, 8 - arm adjusting plate, 9 - adjusting button, 10 - adjusting slide rail, 11 - limiting groove, 12 - adjusting vertical rod, 13 - adjusting cross rod, 14 - spring, 15 - elastic column, 16 - chute, 17 - slider, 18 - connection port, 19 - connection ring, 20 - strip hole Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 cannot be understood as a limitation of the present invention

[0032] In the description of the present invention, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If the terms "first", "second", "third", etc. are described, they are only for descriptive purposes and for distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Embodiment 1

[0035] Please refer to Figure 1-7 , an upper arm assisting structure for live working, comprising: an arm rest 1 for supporting the arm,

[0036] an arm housing 2, the arm housing 2 has a cavity structure, a nitrogen cylinder 3 is arranged in the cavity of the arm housing 2, a steel wire rope 4 is connected to the piston rod 6 at the front end of the nitrogen cylinder 3, the other end of the steel wire rope 4 passes through the bottom of a pulley 5, and the pulley 5 is fixed at one end of the arm housing 2 away from the nitrogen cylinder 3. One end of the arm housing 2 is rotatably connected to an arm adjusting block 7, and the steel wire rope 4 passes out of the pulley 5 and is fixed at the connection between the arm housing 2 and the arm connection block;

[0037] an arm adjusting plate 8, one end of the arm adjusting plate 8 is fixedly connected to the arm rest 1, and the other end is slidably connected to the side wall of the arm housing 2, and an adjusting button 9 capable of adjusting the length of the arm adjusting plate 8 is arranged on the arm housing 2.

[0038] In the above solution, the arm housing 2 is provided with a contour that matches the pulley 5. When the staff wears the upper limb bone assistance structure normally and operates, the upper arm is placed at the position of the armrest 1. At this time, the steel wire rope 4 is in a free moving state. When the load on the worker's upper arm increases, the load is transferred to the gas spring nitrogen cylinder 3 through the arm. At this time, the overall structure of the upper arm is subjected to a downward force, and the position of the front end of the steel wire rope 4 changes, pushing the piston rod 6 of the gas spring nitrogen cylinder 3 to compress the cylinder. If the load on the worker's upper arm is less than or equal to the energy storage of the gas spring nitrogen cylinder 3, support can be provided at this time, and the arm and the shoulder remain at a certain angle unchanged; the compression activity between the cylinder and the piston can dynamically change the energy storage according to the real-time load of the upper arm, providing buffering and braking for the upper limb activities of the worker. Press the arm adjustment button 9, and at this time, the armrest 1 can be freely slid to a suitable length position. When the adjustment button 9 is released, the arm adjustment plate 8 can be clamped on the arm housing 2 to fix the selected length at this time.

[0039] As a further embodiment, an adjustment slide rail 10 is provided on the arm adjustment plate 8, and a number of limit slots 11 are provided at intervals above the adjustment slide rail 10. The limit slots 11 are perpendicular to and communicate with the adjustment slide rail 10. The adjustment button 9 can slide up and down between the adjustment slide rail 10 and the limit slots 11. It can be understood that the adjustment button 9 can slide freely on the adjustment slide rail 10. When the armrest 1 is adjusted to a suitable arm length, the adjustment button 9 is clamped into the corresponding limit slots 11 at different positions to complete the fixation of the armrest 1, which is convenient to operate.

[0040] As a further embodiment, the adjustment button 9 includes an adjustment vertical rod 12, an elastic member is provided at the bottom of the adjustment vertical rod 12, and a Tianjie cross bar 13 is fixed on the adjustment vertical rod 12. The Tianjie cross bar 13 is clamped in the limit slot 11. It can be understood that under the action of the elastic member, after pressing the adjustment vertical rod 12, the arm adjustment plate 8 can be freely adjusted in length by sliding. After adjusting to a suitable length, the adjustment button 9 is released. Under the action of the elastic member, the Tianjie cross bar 13 is inserted into the corresponding limit slot 11 to limit and fix the arm adjustment plate 8, thereby fixing the arm adjustment plate 8 and selecting the most suitable length, which is helpful for the assistance of the upper limb bones.

[0041] As a further embodiment, sliding grooves 16 are provided on the upper and lower sides of the side of the arm housing 2, and both sides of the arm adjustment plate 8 are slidably connected to the sliding grooves 16. It can be understood that sliding blocks 17 matching the sliding grooves 16 are provided on both sides of the arm adjustment plate 8, and the sliding blocks 17 on both sides can freely slide on the sliding grooves 16 on both sides, which is helpful for adjusting the length of the armrest 1 on the arm adjustment plate 8.

[0042] As a further embodiment, a connection port 18 is provided at one end of the wire rope 4 away from the nitrogen cylinder 3, facilitating the fixation of the wire rope 4 on the pin where the arm adjusting block 7 is rotatably connected to the arm housing 2. It can be understood that providing one connection port 18 on the wire rope 4 makes it more convenient to fix the wire rope 4.

[0043] As a further embodiment, one end of the wire rope 4 is connected to the front end of the nitrogen cylinder 3 through a connection loop 19. It can be understood that by connecting to the perforation of the piston rod 6 of the nitrogen cylinder 3 through the connection loop 19, the wire rope 4 can be better connected to the piston rod 6 and press the piston rod 6, playing a better auxiliary role.

[0044] As a further embodiment, the limiting grooves 11 are arranged at equal intervals. It can be understood that the limiting grooves 11 arranged at equal intervals can adjust the length of the armrest 1 more evenly.

[0045] As a further embodiment, the supporting arm has an arc-shaped structure, and a strip-shaped hole 20 is provided in the middle of the supporting arm. It can be understood that in addition to the ventilation function of the strip-shaped hole 20, it also avoids the additional burden brought by the weight of the exoskeleton equipment itself to the wearer.

[0046] As a further embodiment, the elastic member includes a spring 14 and an elastic column 15. The upper end of the elastic column 15 is sleeved on the bottom of the adjusting vertical rod 12, the bottom of the elastic column 15 is fixedly connected to the arm housing 2, and the spring 14 is fixed between the elastic column 15 and the adjusting vertical rod 12.

[0047] It can be understood that the mutual cooperation among the elastic column 15, the adjusting vertical rod 12 and the spring 14 can quickly reset the adjusting vertical rod 12 and insert the Tianjie cross bar 13 into the limiting groove 11, facilitating the limiting and fixing of the arm adjusting plate 8.

[0048] By using the gas spring nitrogen cylinder 3 as an energy storage device, the present invention solves the problems of poor linear elasticity and poor matching of the traditional compression spring 14, can dynamically adjust the assistance according to the real-time load of upper limb movement, and provides a more natural auxiliary force. The length-adjustable structure adapts to the needs of different users and improves the wearing comfort. In addition, the low-friction design of the gas spring nitrogen cylinder 3, the pulley 5 and the wire rope 4 ensures the smooth operation of the exoskeleton and avoids the jamming phenomenon easily generated by the traditional compression spring 14. The overall design is lightweight, reducing the wearing burden, especially suitable for use by workers engaged in live working at high altitudes, effectively reducing the risk of muscle fatigue and injury.

[0049] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. An upper arm assisting structure for live working, characterized in that, Comprising: An armrest (1) for supporting the arm, An arm housing (2), the arm housing (2) having a cavity structure. Inside the cavity of the arm housing (2), a nitrogen cylinder (3) is provided. The piston rod (6) at the front end of the nitrogen cylinder (3) is connected to a steel wire rope (4). The other end of the steel wire rope (4) passes through the bottom of a pulley (5). The pulley (5) is fixed to one end of the arm housing (2) away from the nitrogen cylinder (3). One end of the arm housing (2) is rotatably connected to an arm adjustment block (7). The steel wire rope (4) passes out of the pulley (5) and is fixed at the connection between the arm housing (2) and the arm connection block; An arm adjustment plate (8), one end of the arm adjustment plate (8) is fixedly connected to the armrest (1), and the other end is slidably connected to the side wall of the arm housing (2). And an adjustment button (9) capable of adjusting the length of the arm adjustment plate (8) is provided on the arm housing (2).

2. The upper arm assisting structure for live working according to claim 1, wherein An adjustment slide rail (10) is provided on the arm adjustment plate (8). Above the adjustment slide rail (10), a number of limiting slots (11) are provided at intervals. The limiting slots (11) are perpendicular to and communicate with the adjustment slide rail (10). The adjustment button (9) can slide up and down between the adjustment slide rail (10) and the limiting slots (11).

3. The upper arm assisting structure for live working according to claim 2, wherein, The adjustment button (9) includes an adjustment vertical rod (12). An elastic member is provided at the bottom of the adjustment vertical rod (12). A Tianjie cross bar (13) is fixed on the adjustment vertical rod (12). The Tianjie cross bar (13) is clamped in the limiting slot (11).

4. The upper arm assisting structure for live working according to claim 1, characterized in that, Chute grooves (16) are provided on the upper and lower sides of the side of the arm housing (2). The two sides of the arm adjustment plate (8) are slidably connected to the chute grooves (16).

5. The upper arm assisting structure for live working according to claim 1, characterized in that, A connection port (18) is provided at the end of the steel wire rope (4) away from the nitrogen cylinder (3), facilitating the fixing of the steel wire rope (4) on the pin where the arm adjustment block (7) is rotatably connected to the arm housing (2).

6. The upper arm assisting structure for live working according to claim 1, characterized in that, One end of the steel wire rope (4) is connected to the front end of the nitrogen cylinder (3) through a connection loop (19).

7. The upper arm assisting structure for live working according to claim 3, characterized in that, The limiting slots (11) are arranged at equal intervals.

8. The upper arm boosting structure for live working according to claim 1, wherein, The armrest is in an arc structure, and a strip-shaped hole (20) is provided in the middle of the armrest.

9. The upper arm assisting structure for live working according to claim 3, wherein, The elastic member includes a spring (14) and an elastic column (15). The upper end of the elastic column (15) is sleeved on the bottom of the adjustment vertical rod (12). The bottom of the elastic column (15) is fixedly connected to the arm housing (2). The spring (14) is fixed between the elastic column (15) and the adjustment vertical rod (12).

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