Portable adjusting handle and wheel type moving device using same

Abstract

The utility model discloses a portable adjusting handle and a wheel type moving device using the same. The portable adjusting handle comprises a first shell and a second shell which are connected with each other, the first shell and the second shell are both recessed inwards; the gear and the spring are arranged in an inner cavity formed after the first shell and the second shell are combined; the gear is arranged close to the first shell, and the spring is arranged between the gear and the second shell; a first annular tooth groove matched with the gear is formed in the inner side wall of the first shell. A second annular tooth groove matched with the gear is formed in the inner side wall of the second shell. According to the portable adjusting handle, by arranging the gear and the first annular tooth groove and the second annular tooth groove which are matched with the gear, multi-angle adjustment between the first handle and the second handle is achieved, the gear is clamped in the first annular tooth groove and the second annular tooth groove, and the handle can bear higher acting force in the application process; the handle can be adjusted to incline and exert downward pressure to avoid forward inclination, and the use safety of the handle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustment components, in particular to a portable adjustment handle and a wheeled mobile device using the handle. Background Art

[0002] Wheelchairs, baby carriages, wheeled transport vehicles and other wheeled mobile devices are usually equipped with handles to facilitate users to push them. However, the existing handles are usually rotated to a folded position when not in use, and then rotated to a horizontal position when in use. That is, the handle can only be rotated to the above two specific angles, and the handle cannot be rotated to tilt the handle to one side of the vehicle body. When the handle is horizontal, a horizontal force acts on the handle and pushes the wheeled mobile device to move. However, when the wheeled mobile device is on a downhill section or the load on the wheeled mobile device tilts forward, since the handle cannot tilt toward one side of the vehicle body, the horizontal force applied by the handle is insufficient to balance the force, which can easily cause the wheeled mobile device to tilt forward and cause personal injury. Therefore, the handle in the prior art method has the problem of insufficient safety of use due to the insufficient flexibility of the rotation angle. Utility Model Content

[0003] The embodiment of the utility model provides a portable adjustable handle and a wheeled mobile device using the handle, aiming to solve the problem of insufficient safety of use caused by insufficient flexibility of the rotation angle of the handle in the prior art method.

[0004] In a first aspect, an embodiment of the utility model provides a portable adjustment handle, comprising a first shell and a second shell connected to each other;

[0005] The first shell and the second shell are both recessed inwards; the gear and the spring are arranged in an internal cavity formed by the combination of the first shell and the second shell; the gear is arranged adjacent to the first shell, and the spring is arranged between the gear and the second shell;

[0006] The inner side wall of the first housing is provided with a first annular tooth groove adapted to the gear; the inner side wall of the second housing is provided with a second annular tooth groove adapted to the gear;

[0007] The pressing block passes through a pressing through hole provided in the middle of the first housing and abuts against a side surface of the gear;

[0008] The first handle is fixedly connected to the side of the first shell; the second handle is fixedly connected to the side of the second shell, and the first shell is rotated relative to the second shell to adjust the angle between the first handle and the second handle; the rotation angle of the first handle relative to the second handle is 0-315°.

[0009] The portable adjustment handle is characterized in that a shell through hole is provided at the central axis of the second shell, a gear through hole is provided in the center of the gear, and a screw hole is provided at the central axis of the first shell. Bolts penetrate the shell through hole and the gear through hole in sequence and are screwed into the screw holes to tightly connect the first shell and the second shell.

[0010] The portable adjustment handle, wherein a convex tooth is provided between the first annular tooth groove and the outer side wall of the first shell, and a groove is provided between the second annular tooth groove and the outer side wall of the second shell; when the first shell and the second shell are combined and connected, the convex tooth is embedded in the groove so that the central axis of the first shell coincides with the central axis of the second shell.

[0011] The portable adjustment handle, wherein the outer edge line of the top end of the convex tooth is set as an arc surface.

[0012] The portable adjustment handle, wherein a boss is provided in the middle of the first shell, and the boss is formed by a depression in the center of the first shell toward one side of the internal cavity; the screw hole is provided in the center of the boss;

[0013] Two pressing through holes are arranged on both sides of the screw hole, and the two pressing blocks respectively pass through one pressing through hole, and the pressing connecting plates are respectively fixedly connected to one end of each pressing block away from the gear.

[0014] The portable adjustment handle, wherein the pressing block is crescent-shaped; the arc surfaces formed on both sides of the crescent-shaped pressing block are bent toward the screw hole;

[0015] The two pressing blocks are centrally symmetrically arranged with the screw hole as the center.

[0016] The portable adjustment handle, wherein the depth of the first annular tooth groove is less than the thickness of the gear; the depth of the second annular tooth groove is not less than the thickness of the gear; and a reinforcing rib is provided between the boss and the protruding portion of the first annular tooth groove.

[0017] The portable adjustment handle, wherein a spring fixing protrusion is provided at the center of the second shell, the shell through hole is provided at the center of the spring fixing protrusion, and the spring is sleeved on the periphery of the spring fixing protrusion.

[0018] The portable adjustment handle, wherein the gear comprises a gear ring disposed on the outside and an annular fixing groove disposed on the inside of the gear ring;

[0019] The cross section of the annular fixing groove is L-shaped; the end of the spring is embedded in the annular fixing groove; the gear through hole is arranged in the center of the annular fixing groove;

[0020] A connecting rib is provided between the outer side wall of the annular fixing groove and the inner side wall of the gear ring.

[0021] In a second aspect, an embodiment of the utility model provides a wheeled mobile device, wherein the wheeled mobile device comprises two portable adjustment handles, a mobile device body and a pulley as described in the above embodiment;

[0022] The first handle of one of the portable adjustable handles is fixedly connected to the first handle or the second handle of another portable adjustable handle via a connecting rod;

[0023] The second handle in one of the portable adjustable handles that is not connected to the connecting rod, and the second handle or the first handle in another of the portable adjustable handles that is not connected to the connecting rod are both fixedly connected to the mobile device body, and the pulley is assembled at the bottom of the mobile device body.

[0024] Through the above scheme, it can be known that the utility model provides a portable adjustment handle and a wheeled mobile device using the handle, the portable adjustment handle includes a first shell and a second shell connected to each other; the first shell and the second shell are both recessed inward; the gear and the spring are arranged in the internal cavity formed by the combination of the first shell and the second shell; the gear is arranged adjacent to the first shell, and the spring is arranged between the gear and the second shell; the inner side wall of the first shell is provided with a first annular tooth groove adapted to the gear; the inner side wall of the second shell is provided with a second annular tooth groove adapted to the gear. The above portable adjustment handle is provided with gears and the first annular tooth groove and the second annular tooth groove adapted to the gear to achieve multi-angle adjustment between the first handle and the second handle, and the gears are respectively engaged with the first annular tooth groove and the second annular tooth groove, so that the handle can withstand a higher force during use, and the handle can be adjusted to tilt and apply downward pressure to avoid forward tilting, thereby improving the safety of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 An exploded structural diagram of a portable adjustment handle provided in an embodiment of the utility model;

[0027] Figure 2 A partial structural diagram of a portable adjustment handle provided in an embodiment of the utility model;

[0028] Figure 3 Another partial structural diagram of the portable adjustable handle provided by the embodiment of the utility model;

[0029] Figure 4 A partial exploded structural diagram of a portable adjustment handle provided in an embodiment of the utility model;

[0030] Figure 5 An assembly structure diagram of a portable adjustment handle provided by an embodiment of the utility model;

[0031] Figure 6 A schematic diagram of the forces acting on a portable adjustment handle provided in an embodiment of the utility model.

[0032] Figure numerals: 10, first shell; 20, second shell; 30, gear; 4, spring; 11, first annular tooth groove; 21, second annular tooth groove; 51, pressing block; 12, pressing through hole; 101, first handle; 201, second handle; 22, shell through hole; 31, gear through hole; 13, screw hole; 6, bolt; 14, convex tooth; 24, groove; 15, boss; 50, pressing connecting plate; 16, reinforcing rib; 25, spring fixing protrusion; 32, gear ring; 33, annular fixing groove; 34, connecting rib; 7, connecting rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In order to solve the problem that the rotation angle of the handle in the prior art is not flexible enough, the embodiment of the utility model provides a portable adjustable handle. Figure 1The portable adjustment handle comprises a first shell 10 and a second shell 20 connected to each other; the first shell 10 and the second shell 20 are both recessed inwardly; a gear 30 and a spring 4 are arranged in an internal cavity formed by the combination of the first shell 10 and the second shell 20; the gear 30 is arranged adjacent to the first shell 10, and the spring 4 is arranged between the gear 30 and the second shell 20; the inner side wall of the first shell 10 is provided with a first annular tooth groove 11 adapted to the gear 30; the inner side wall of the second shell 20 is provided with a second annular tooth groove 21 adapted to the gear 30; the pressing block 51 passes through the pressing through hole 12 arranged in the middle of the first shell 10 and abuts against one side of the gear 30; the first handle 101 is fixedly connected to the side of the first shell 10; the second handle The hand 201 is fixedly connected to the side of the second shell 20, and the first shell 10 is rotated relative to the second shell 20 to adjust the angle between the first handle 101 and the second handle 201; the rotation angle of the first handle 101 relative to the second handle 201 is 0-315°, and when the first handle 101 is rotated to the maximum angle relative to the second handle 201, the outer wall connecting the first handle 101 and the second shell 20 abuts against the outer wall connecting the second handle 201 and the first shell 10, thereby locking the rotation angle; when the user applies force when rotating to the maximum angle, it can ensure that the above-mentioned portable adjustment handle can withstand the force applied by the user and ensure that the first handle 101 will not continue to rotate to a larger angle relative to the second handle 201.

[0035] Specifically, the first shell 10 and the second shell 20 may be arranged to be recessed inwardly, so that a concave cavity is formed in the first shell 10 and the second shell 20, and the concave cavity of the first shell 10 is opposite to the concave cavity of the second shell 20. When the first shell 10 and the second shell 20 are combined and connected, an internal cavity is formed inside, and the gear 30 and the spring 4 are both arranged in the internal cavity, and the gear 30 is arranged adjacent to the first shell 10, and the spring 4 is arranged between the gear 30 and the second shell 20. The specific arrangement position is as follows: Figure 1 As shown. The spring 4 provides elastic force and pushes the gear 30 to engage in the first annular tooth groove 11 and the second annular tooth groove 21 at the same time, so that the first shell and the second shell are engaged and fixed through the gear 30, that is, the rotation angle of the first shell relative to the second shell is locked. At this time, the pushing force applied to the first handle 101 (or the second handle 201) can be directly transmitted to the second handle 201, so as to achieve the pushing of the wheeled sports device. Among them, the end of the first annular tooth groove 11 is flush with the end face of the first shell 10 facing the first shell 10, and the end of the second annular tooth groove 21 is flush with the end face of the second shell 20 facing the first shell 10.

[0036] like Figure 5 As shown, the first handle 101 is fixedly connected to the side of the first shell 10, and the second handle 201 is fixedly connected to the side of the second shell 20, that is, the connection between the first handle 101 and the first shell 10 deviates from the center of the circle of the first shell 10, and the connection between the second handle 201 and the second shell 20 can also be set to deviate from the center of the circle of the second shell 20. This setting structure can make the first handle 101 and the second handle 201 completely overlap during rotation, that is, the angle of rotation of the first handle 101 relative to the second handle 201 is 0. When the second handle 201 is fixed and the first handle 101 is rotated and adjusted, the maximum angle of rotation of the first handle 101 relative to the second handle 201 can reach 315°.

[0037] When it is necessary to adjust the rotation angle of the first shell relative to the second shell, the pressing block 51 can be pushed by external force, and the pressing block 51 pushes the gear 30 inward (the gear 30 moves toward the second shell). At this time, the spring 4 is compressed by the external force, and the gear 30 is out of contact with the first annular tooth groove 11. At this time, an external force can be applied to the first handle 101 to push the first shell to rotate relative to the second shell. When the first shell is rotated to a suitable angle, the external force applied to the pressing block 51 can be removed, and the spring 4 relies on its own elastic force to push the gear 30 to move toward the first shell, so that the gear 30 is re-engaged in the first annular tooth groove 11, that is, the first shell and the second shell are again engaged and fixed, that is, the rotation angle of the first shell relative to the second shell is re-locked. Since the gear 30 can be rotated to multiple angles and simultaneously engaged in the first annular tooth groove 11 and the second annular tooth groove 21 (as long as the rotation position of the gear 30 can make the protruding teeth correspondingly engage in the first annular tooth groove 11 and the second annular tooth groove 21), it is possible to achieve multi-angle adjustment between the first handle 101 and the second handle 201. For example, if the angle between two adjacent protruding teeth in the gear 30 is 15°, then one gear 30 can be provided with 24 protruding teeth, and the protruding teeth need to be rotated 15° to the position of the adjacent protruding teeth. Each rotation of 15° can make the first shell and the second shell again engage and fix through the gear 30, thereby achieving multi-angle adjustment.

[0038] In a more specific embodiment, Figures 1 to 3 As shown, a shell through hole 22 is provided at the central axis of the second shell 20, a gear through hole 31 is provided in the center of the gear 30, and a screw hole 13 is provided at the central axis of the first shell 10. The bolt 6 passes through the shell through hole 22 and the gear through hole 31 in sequence and is screwed into the screw hole 13, so that the first shell 10 is tightly connected with the second shell 20.

[0039] Specifically, a housing through hole 22 may be provided at the central axis of the second housing 20, a gear through hole 31 may be provided at the center of the gear 30, and a screw hole 13 may be provided at the central axis of the first housing 10. A bolt 6 may be passed through the housing through hole 22 and the gear through hole 31 in sequence, and the end of the bolt 6 may be screwed into the screw hole 13. The first housing 10 and the second housing 20 may be tightly connected by rotating the bolt 6. The outer diameter of the first housing 10 is the same as the outer diameter of the second housing 20. The specific setting position of the bolt 6 is as follows: Figure 5 shown.

[0040] Further, such as Figure 1 and Figure 3 As shown, a convex tooth 14 is provided between the first annular tooth groove 11 and the outer side wall of the first shell 10, and a groove 24 is provided between the second annular tooth groove 21 and the outer side wall of the second shell 20; when the first shell 10 and the second shell 20 are assembled and connected, the convex tooth 14 is embedded in the groove 24 so that the central axis of the first shell 10 coincides with the central axis of the second shell 20. Specifically, the outer edge line of the top of the convex tooth 14 is set as an arc surface.

[0041] A radial connecting rod may be arranged between the outer side wall of the first annular tooth groove 11 and the outer side wall of the first shell 10, and the radial connecting rod is used to increase the stability of the connection between the first annular tooth groove 11 and the first shell 10, and the end of the radial connecting rod is flush with the end surface of the first shell 10 facing the second shell 20. Further, a convex tooth 14 may be arranged between the first annular tooth groove 11 and the outer side wall of the first shell 10, and the convex tooth 14 extends from the first shell 10 and extends toward one side of the second shell 20, and the convex tooth 14 may be arranged between two adjacent radial connecting rods. A groove 24 is arranged between the second annular tooth groove 21 and the outer side wall of the second shell 20, and the groove 24 is an annular groove surrounding the outer side of the second annular tooth groove 21. The convex tooth 14 can be embedded in the groove 24, so that the central axis of the first shell 10 is aligned with the central axis of the second shell 20, so as to increase the stability of the first shell 10 when rotating relative to the second shell 20, and avoid misalignment during the rotation process.

[0042] Furthermore, in order to improve the smoothness of the rotation of the first housing 10 relative to the second housing 20, the outer edge line of the top of the protruding tooth 14 can be set to a circular arc surface. The specific setting structure is as follows: Figure 2 As shown, the arc surface can prevent the protruding teeth 14 from getting stuck in the grooves 24 and becoming unable to rotate when the first housing 10 rotates relative to the second housing 20 .

[0043] In a more specific embodiment, Figure 2 and Figure 4As shown, a boss 15 is provided in the middle of the first shell 10, and the boss 15 is formed by the center of the first shell 10 being recessed toward one side of the internal cavity; the screw hole 13 is provided at the center of the boss 15; two pressing through holes 12 are provided on both sides of the screw hole 13, and the two pressing blocks 51 respectively penetrate one of the pressing through holes 12, and the pressing connecting plate 50 is respectively fixedly connected to one end of each pressing block 51 away from the gear 30. Among them, the pressing block 51 is crescent-shaped; the arc surfaces formed on both sides of the crescent-shaped pressing block 51 are bent toward the screw hole 13; the two pressing blocks 51 are centrally symmetrically arranged with the screw hole 13 as the center of the circle.

[0044] A boss 15 may be provided in the middle of the first shell 10, and a position corresponding to the boss 15 on the outer side of the first shell 10 forms an outer side cavity, and the ends of the two pressing blocks 51 can be fixedly connected by pressing the connecting plate 50, and the pressing connecting plate 50 can be accommodated in the formed outer side cavity. The specific structure is as follows: Figure 4 By setting a press connection block to fix the two press blocks 51, the stability of the gear 30 when being pushed by the press block 51 can be improved. Each press block 51 pushes one side of the gear 30, so that the forces on both sides of the gear 30 are balanced, thereby improving the application effect of pushing the gear 30 to move by the two press blocks 51.

[0045] Furthermore, in order to make the pressing block 51 match the shape of the gear 30, the pressing block 51 can be set to be crescent-shaped, and two pressing blocks 51 can be set to be centrally symmetrical with the screw hole 13 as the center; when the pressing block 51 abuts against the side of the gear 30, the contact area between the crescent-shaped pressing block 51 and the side of the gear 30 can be increased, and the force on the gear 30 can be further balanced, thereby improving the smoothness of pushing the gear 30 to move by the pressing block 51; the user can press the pressing block 51 with a smaller force to push the gear 30 to move, thereby improving the convenience of the user operating the handle to adjust the angle.

[0046] In a more specific embodiment, Figure 1 and Figure 3 As shown, the depth of the first annular tooth groove 11 is less than the thickness of the gear 30 ; the depth of the second annular tooth groove 21 is not less than the thickness of the gear 30 ; and a reinforcing rib 16 is provided between the boss 15 and the protruding portion of the first annular tooth groove 11 .

[0047] Further, the depth of the first annular tooth groove 11 can be set to be less than the thickness of the gear 30, and the depth of the second annular tooth groove 21 can be set to be not less than the thickness of the gear 30; the depth of the first annular tooth groove 11 here refers to the height of the first annular tooth groove 11 above the top surface of the boss 15. When there is no external force, the spring 4 pushes the gear 30 through its own elastic force and abuts against the bottom surface of the first housing 10. Since the depth of the first annular tooth groove 11 is less than the gear 30, the gear 30 abuts against the bottom surface of the first housing 10, and the gear 30 will still be partially exposed relative to the first annular tooth groove 11 (there is still a part of the upper end of the gear 30 that is not engaged in the first annular tooth groove 11), and the exposed part of the gear 30 will inevitably be engaged in the second annular tooth groove 21, thereby achieving the engagement and fixing of the first housing 10 and the second housing 20 through the gear 30. When the gear 30 is pushed toward the second shell 20 by external force, since the depth of the second annular tooth groove 21 is not less than the thickness of the gear 30, the gear 30 will inevitably be able to fully engage in the second annular tooth groove 21, and there is no exposed part of the upper end of the gear 30 relative to the second annular tooth groove 21, that is, the gear 30 is completely disengaged from the first annular tooth groove 11, that is, it can smoothly push the first shell 10 to rotate relative to the second shell 20.

[0048] Furthermore, in order to improve the tightness of the connection between the first annular tooth groove 11 and the boss 15, a reinforcing rib 16 may be provided between the boss 15 and the protruding portion of the first annular tooth groove 11. The specific configuration structure of the reinforcing rib 16 is as follows: Figure 2 The height of the reinforcing rib 16 is not higher than the height of the boss 15.

[0049] In a more specific embodiment, Figure 1 and Figure 3 As shown, a spring fixing protrusion 25 is provided at the center of the second housing 20, the housing through hole 22 is provided at the center of the spring fixing protrusion 25, and the spring 4 is sleeved on the periphery of the spring fixing protrusion 25. Specifically, the gear 30 includes a gear ring 32 provided at the outside and an annular fixing groove 33 provided at the inside of the gear ring 32; the cross section of the annular fixing groove 33 is L-shaped; the end of the spring 4 is embedded in the annular fixing groove 33; the gear through hole 31 is provided at the center of the annular fixing groove 33; a connecting rib 34 is provided between the outer wall of the annular fixing groove 33 and the inner wall of the gear ring 32.

[0050] Furthermore, a spring fixing protrusion 25 may be provided in the center of the second housing 20. The specific configuration structure is as follows: Figure 3As shown, the outer diameter of the spring fixing protrusion 25 is larger than the inner diameter of the housing through hole 22, and the housing through hole 22 is provided at the center of the spring fixing protrusion 25. The end of the spring 4 facing the second housing 20 can be sleeved on the periphery of the spring fixing protrusion 25 to fix the end of the spring 4, thereby improving the stability of the spring 4 during use and preventing the spring 4 from being offset in the internal cavity.

[0051] like Figure 1 As shown, the gear 30 may also be provided to be composed of a gear ring 32 provided on the outside and an annular fixing groove 33 provided on the inside of the gear ring 32, the cross section of the annular fixing groove 33 is L-shaped, a gear through hole 31 is formed in the center of the annular fixing groove 33 having an L-shaped cross section, and the formed gear through hole 31 is located in the center of the annular fixing groove 33. One end of the spring 4 facing the gear 30 is embedded in the annular fixing groove 33 for fixing, thereby further improving the stability of the spring 4 during use, and preventing the spring 4 from being displaced relative to the gear 30 when the gear 30 is pushed to move.

[0052] In order to improve the stability of the connection between the annular fixing groove 33 and the gear ring 32 and increase the overall mechanical strength of the gear 30, a connecting rib 34 may be provided between the outer wall of the annular fixing groove 33 and the inner wall of the gear ring 32. The specific structure is as follows: Figure 1 The connection rib 34 can greatly increase the mechanical strength of the gear 30 as a whole, and prevent the gear 30 from being damaged during repeated movement, thereby improving the reliability of the gear 30 and thereby improving the reliability of the handle as a whole.

[0053] The present application also discloses a wheeled mobile device, such as Figure 5 As shown, the wheeled mobile device includes two portable adjustable handles, a mobile device body and a pulley as described in the above embodiments; the first handle 101 of one of the portable adjustable handles is fixedly connected to the first handle 101 or the second handle 201 of the other portable adjustable handle through a connecting rod 7; the second handle 201 of one of the portable adjustable handles that is not connected to the connecting rod 7, and the second handle 201 or the first handle 101 of the other portable adjustable handle that is not connected to the connecting rod 7 are fixedly connected to the mobile device body, and the pulley is mounted on the bottom of the mobile device body. The mobile device body can be a wheelchair seat, a stroller body, a wheeled transport vehicle body, etc., and the mobile device body moves by means of a pulley arranged at its bottom.

[0054] In a specific application process, the first handles 101 of the two portable adjustable handles can be connected through the connecting rod 7; further, in order to increase the stability of the rotation adjustment of the connecting rod, the first handle 101 of one portable adjustable handle can be connected to the second handle 102 of the other portable adjustable handle through the connecting rod 7. Figure 5 shown.

[0055] At this time, by adjusting the angle, the connecting rod 7 and the handle connected to the connecting rod 7 can be tilted toward one side of the wheeled mobile device. At this time, the force on the connecting rod 7 is as follows: Figure 6 As shown; the thrust applied by the user to the connecting rod 7 is F, then F can be decomposed to obtain the horizontal thrust Fx and the vertical thrust Fy, Fx can push the wheeled mobile device forward, Fy can apply downward pressure to the wheeled mobile device to prevent the wheeled mobile device from tilting forward, thereby improving the safety of use.

[0056] The utility model provides a portable adjustment handle and a wheeled mobile device using the handle, wherein the portable adjustment handle includes a first shell and a second shell connected to each other; the first shell and the second shell are both recessed inwardly; a gear and a spring are arranged in an internal cavity formed by combining the first shell and the second shell; the gear is arranged adjacent to the first shell, and the spring is arranged between the gear and the second shell; the inner side wall of the first shell is provided with a first annular tooth groove adapted to the gear; the inner side wall of the second shell is provided with a second annular tooth groove adapted to the gear. The portable adjustment handle is provided with gears and first annular tooth grooves and second annular tooth grooves adapted to the gears to achieve multi-angle adjustment between the first handle and the second handle, and the gears are respectively engaged with the first annular tooth grooves and the second annular tooth grooves, so that the handle can withstand a higher force during use, and the handle can be adjusted to tilt and apply downward pressure to avoid forward tilting, thereby improving the safety of the handle.

[0057] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A portable adjustable handle, characterized in that: It includes a first shell and a second shell connected to each other; The first shell and the second shell are both recessed inwards; the gear and the spring are arranged in an internal cavity formed by the combination of the first shell and the second shell; the gear is arranged adjacent to the first shell, and the spring is arranged between the gear and the second shell; The inner side wall of the first housing is provided with a first annular tooth groove adapted to the gear; the inner side wall of the second housing is provided with a second annular tooth groove adapted to the gear; The pressing block passes through a pressing through hole provided in the middle of the first housing and abuts against a side surface of the gear; The first handle is fixedly connected to the side of the first shell; the second handle is fixedly connected to the side of the second shell, and the first shell is rotated relative to the second shell to adjust the angle between the first handle and the second handle; the rotation angle of the first handle relative to the second handle is 0-315°.

2. The portable adjustment handle according to claim 1, characterized in that: A shell through hole is provided at the central axis of the second shell, a gear through hole is provided in the center of the gear, and a screw hole is provided at the central axis of the first shell. Bolts pass through the shell through hole and the gear through hole in sequence and are screwed into the screw holes to tightly connect the first shell and the second shell.

3. The portable adjustment handle according to claim 1 or 2, characterized in that: A convex tooth is provided between the first annular tooth groove and the outer side wall of the first shell, and a groove is provided between the second annular tooth groove and the outer side wall of the second shell; when the first shell and the second shell are combined and connected, the convex tooth is embedded in the groove so that the central axis of the first shell coincides with the central axis of the second shell.

4. The portable adjustment handle according to claim 3, characterized in that: The outer edge line of the top end of the convex tooth is set as an arc surface.

5. The portable adjustment handle according to claim 2, characterized in that: A boss is provided in the middle of the first shell, and the boss is formed by a depression in the center of the first shell toward one side of the internal cavity; the screw hole is provided in the center of the boss; Two pressing through holes are arranged on both sides of the screw hole, and the two pressing blocks respectively pass through one pressing through hole, and the pressing connecting plates are respectively fixedly connected to one end of each pressing block away from the gear.

6. The portable adjustment handle according to claim 5, characterized in that: The pressing block is crescent-shaped; the arc surfaces formed on both sides of the crescent-shaped pressing block are bent toward the screw hole; The two pressing blocks are centrally symmetrically arranged with the screw hole as the center.

7. The portable adjustment handle according to claim 5, characterized in that: The depth of the first annular tooth groove is less than the thickness of the gear; the depth of the second annular tooth groove is not less than the thickness of the gear; and a reinforcing rib is provided between the boss and the protruding portion of the first annular tooth groove.

8. The portable adjustment handle according to claim 2, characterized in that: A spring fixing protrusion is arranged at the center of the second shell, the shell through hole is arranged at the center of the spring fixing protrusion, and the spring is sleeved on the periphery of the spring fixing protrusion.

9. The portable adjustment handle according to claim 8, characterized in that: The gear comprises a gear ring arranged on the outside and an annular fixing groove arranged on the inside of the gear ring; The cross section of the annular fixing groove is L-shaped; the end of the spring is embedded in the annular fixing groove; the gear through hole is arranged in the center of the annular fixing groove; A connecting rib is provided between the outer side wall of the annular fixing groove and the inner side wall of the gear ring.

10. A wheeled mobile device, characterized in that: The wheeled mobile device comprises two portable adjustment handles as described in any one of claims 1 to 9, a mobile device body and a pulley; The first handle of one of the portable adjustable handles is fixedly connected to the first handle or the second handle of another portable adjustable handle via a connecting rod; The second handle in one of the portable adjustable handles that is not connected to the connecting rod, and the second handle or the first handle in another of the portable adjustable handles that is not connected to the connecting rod are both fixedly connected to the mobile device body, and the pulley is assembled at the bottom of the mobile device body.

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