Folding structure of getting-up device

Abstract

The utility model relates to a folding structure of a getting-up device, which comprises a lower frame pipe and a getting-up frame, the getting-up frame is rotatably hinged on the lower frame pipe, a folding structure is hinged between the lower frame pipe and the resistance end of the getting-up frame, and the folding structure comprises an outer pipe sleeve and an inner rod. A tightening torsional spring elastically and tightly wound outside the inner rod and a control piece movably arranged outside the inner rod are arranged in the outer pipe sleeve, one end of the tightening torsional spring is fixedly connected with the outer pipe sleeve, the other end of the tightening torsional spring is connected to the control piece, a brake structure is arranged on the getting-up frame, and the tightening torsional spring is twisted through rotation of the control piece. The inner rod is loosened or wound by the tightening torsion spring; according to the folding structure on the getting-up device, the tightening torsional spring is used for winding the inner rod tightly to lock the angle of the getting-up frame, when the getting-up frame is used, the brake structure drives the control piece to twist the tightening torsional spring, the spring diameter of the tightening torsional spring is enlarged to loosen the inner rod, and therefore the getting-up frame can swing freely, and the folding structure is high in reliability, simple and easy to operate and convenient to use. And the locking effect is stable.

Description

Technical Field

[0001] The utility model relates to the field of erectors, in particular to a folding structure of an erector. Background Art

[0002] With the development of society and the progress of science and technology, the medical field has been paid more and more attention, and the research in the field of medical equipment has become more in-depth. In the current medical environment, there are quite a few users who have difficulty taking care of themselves and daily mobility due to lower limb inconvenience. Such users usually need the help of a nurse or a transfer cart to move the patient. However, when the patient needs to go to the toilet or other places, the nurse still needs to help or pick up the patient and lead the patient to the toilet. This process is inconvenient. Therefore, you can only choose a transfer cart with a stand according to your needs before purchasing it. However, the currently used shifting carts are shown in the Chinese patent document, application number: CN202310642540.9. The applicant can only design a lifter that can be installed on the shifting cart later according to the prior art. The method is to disassemble the original handle and install the lifter on the sleeve originally connected to the handle. However, after the lifter lifts the patient, the nurse responsible for operating the lifter still needs to walk forward to assist the patient. At this time, a structure is needed that can arbitrarily lock the angle of the lifter after the nurse releases the lifter to improve the structure of the lifter. Summary of the invention

[0003] The utility model aims to provide a folding structure of a standing device which has a simple and reasonable structure, is easy to install and has a stable structure.

[0004] The folding structure of the lifting device includes a lower frame tube and a lifting frame, the middle part of the lifting frame is rotatably hinged on the lower frame tube, and a folding structure is hinged between the lower frame tube and the resistance end of the lifting frame, the folding structure includes an outer tube sleeve and an inner rod slidably connected in the outer tube sleeve, the outer tube sleeve is provided with a compression torsion spring elastically wound around the outside of the inner rod and a control plate movably arranged outside the inner rod, one end of the compression torsion spring is fixedly connected to the outer tube sleeve, the other end of the compression torsion spring is connected to the control plate, and the lifting frame or the folding structure is provided with a brake structure for pulling the control plate to rotate around the inner rod, the control plate is rotated to twist the compression torsion spring, so that the compression torsion spring loosens or tightens the inner rod.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the folding structure also includes a plug sleeve and a torsion spring sleeve fixedly arranged in the outer tube sleeve, the compression torsion spring and the control plate are placed in the torsion spring sleeve, the plug sleeve is placed at one end of the torsion spring sleeve and is provided with a bayonet for fixing one end of the compression torsion spring.

[0007] As a further solution, the inner wall surface of the plug sleeve is provided with an annular limiting step surface, the end of the compression torsion spring is abutted against the limiting step surface, and the limiting step surface is composed of an inclined end surface of one part and a flat end surface of another part.

[0008] As a further solution, a circle of positioning grooves is provided on the outer wall surface of the plug sleeve, and the outer sleeve is provided with positioning ribs stamped inwardly corresponding to the positioning grooves. The plug sleeve protrudes into the positioning grooves through the positioning ribs and is axially fixed in the outer sleeve.

[0009] As a further solution, the control plate includes a control sleeve and a rocker arm radially connected to the control sleeve, the control sleeve is rotatably sleeved outside the inner rod, the rocker arm is connected to the brake structure, a torsion spring push surface is provided on the control sleeve, and the other end of the compression torsion spring is circumferentially abutted against the torsion spring push surface.

[0010] As a further solution, a limited slit is provided on the torsion spring sleeve, the rocker arm swings between the limited slits, the outer tube sleeve is provided with a sleeve opening corresponding to the limited slit, the rocker arm passes through the limited slit and the sleeve opening and extends out of the outer tube sleeve, and an opening cover is sleeved on the rocker arm, and the opening cover slides over and covers the sleeve opening.

[0011] As a further solution, two spaced-apart plug sleeves are fixedly connected inside the outer tube sleeve, the torsion spring sleeve is arranged between the two plug sleeves, the control plate is placed in the middle part of the torsion spring sleeve, and a compression torsion spring is arranged between the left and right sides of the control plate and the two plug sleeves.

[0012] As a further solution, the brake structure includes a brake handle, a brake cable sleeve and a fixed arm, one end of the brake cable sleeve is fixedly connected to the brake handle, and the other end is abutted against or connected to the fixed arm; a brake cable is inserted into the brake cable sleeve, one end of the brake cable is transmission-connected to the brake handle, and the other end passes through the fixed arm and is connected to the rocker arm; a return spring is provided between the fixed arm and the rocker arm, and the return spring is sleeved on the brake cable.

[0013] As a further solution, the raising frame includes a raising support frame used as a resistance arm, the front end of the raising support frame is rotatably hinged with the lower frame tube, the rear end side of the raising support frame is connected to a handle frame, the brake handle is connected to the handle frame, and the front end of the raising support frame is flipped and connected to an armpit frame used as a power arm on both sides.

[0014] As a further solution, an upper folding ear is connected to the bottom of the rear end side of the lifting support frame, the outer end of the outer tube sleeve is rotatably hinged on the upper folding ear, the bottom of the lower frame tube is connected to a lower folding support ear, the outer end of the inner rod is adjustably connected to an adjustment seat, and the adjustment seat is rotatably hinged on the lower folding support ear.

[0015] The beneficial effects of the utility model are as follows:

[0016] The folding structure of the stenter of the utility model utilizes a compression torsion spring to tighten an inner rod to lock the angle of the stenter; when the stenter is in use, the brake structure drives the control plate to twist the compression torsion spring, so that the spring diameter of the compression torsion spring is expanded to loosen the inner rod, and the inner rod moves telescopically relative to the outer sleeve, so that the stenter can swing freely; the structure has high reliability and good durability, simple and easy operation, and stable locking effect; even if the folding structure is subjected to excessive force, the compression torsion spring can still exert sufficient friction when the inner rod moves, and can also play a damping role, buffering the rate at which the stenter falls into place, thereby avoiding injury to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the decomposition structure of the folding structure in the utility model.

[0019] Figure 3 It is a schematic diagram of the matching structure of the plug sleeve, the compression torsion spring and the control plate in the utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the control piece in the utility model.

[0021] Figure 5 It is a schematic diagram of the plug sleeve structure in the utility model.

[0022] Figure 6 It is a schematic diagram of the cooperation between the compression torsion spring and the limiting step surface in the utility model.

[0023] Figure 7 It is a schematic diagram of the connection structure between the brake structure and the control plate in the utility model.

[0024] Figure 8 It is a schematic diagram of the structure of the standing frame in the utility model. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1 to 8As shown, the folding structure of the lifting device includes a lower frame tube 1 and a lifting frame 2, the middle part of the lifting frame 2 is rotatably hinged on the lower frame tube 1, and a folding structure 3 is hinged between the lower frame tube 1 and the resistance end of the lifting frame 2, the folding structure 3 includes an outer tube sleeve 4 and an inner rod 5 slidably connected in the outer tube sleeve 4, the outer tube sleeve 4 is provided with a compression torsion spring 6 elastically wound around the inner rod 5 and a control plate 7 movably arranged outside the inner rod 5, one end of the compression torsion spring 6 is fixedly connected to the outer tube sleeve 4, the other end of the compression torsion spring 6 is connected to the control plate 7, and the lifting frame 2 or the folding structure 3 is provided with a brake structure for pulling the control plate 7 to rotate around the inner rod 5, the control plate 7 is rotated to twist the compression torsion spring 6, so that the compression torsion spring 6 loosens or tightens the inner rod 5.

[0027] The folding structure 3 on this lifting device utilizes the compression torsion spring 6 to tighten the inner rod 5, and locks the angle of the lifting frame 2 by friction. When the lifting frame 2 is in use, the brake structure drives the control plate 7 to twist one end of the compression torsion spring 6, so that the spring diameter of the compression torsion spring 6 is expanded, and the contact area between the compression torsion spring 6 and the inner rod 5 is reduced, and the friction is reduced, thereby loosening the inner rod, and the inner rod 5 telescopically moves relative to the outer sleeve 4, so that the lifting frame 2 can swing freely, and the angle of the lifting frame can be adjusted to help the patient stand up. This structure has high reliability, good durability, and simple and easy operation.

[0028] The folding structure 3 also includes a plug sleeve 8 and a torsion spring sleeve 9 fixedly arranged in the outer tube sleeve 4, the compression torsion spring 6 and the control plate 7 are placed in the torsion spring sleeve 9, the plug sleeve 8 is placed at one end of the torsion spring sleeve 9, and is provided with a bayonet 81 for fixing one end of the compression torsion spring 6; the torsion spring sleeve 9 can protect the compression torsion spring 6 and prevent the torsion spring sleeve 9 from excessive deformation, the plug sleeve 8 can limit the end of the compression torsion spring 6 and realize the fixed connection of one end of the compression torsion spring 6, and the compression torsion spring 6 will not rotate synchronously when the other end is twisted.

[0029] The inner wall surface of the plug sleeve 8 is provided with an annular limiting step surface 82, and the end of the compression torsion spring 6 is supported on the limiting step surface 82, and the limiting step surface 82 is composed of a part of an inclined end surface 821 and another part of a flat end surface 822;

[0030] When the compression torsion spring 6 is twisted, in addition to the expansion of the spring diameter, the axial length of the compression torsion spring 6 is also increased. An inclined end surface 821 is provided on the limiting step surface 82. On the one hand, it can support the end of the compression torsion spring 6 under normal conditions so that its two ends are respectively located on the plug sleeve 8 and the control plate 7. When it is twisted and deformed, it also has axial movement space until it is abutted against the flat end surface 822.

[0031] A circle of positioning grooves 83 are provided on the outer wall surface of the plug sleeve 8, and a positioning convex rib 41 is provided on the outer sleeve 4 corresponding to the positioning grooves 83. The plug sleeve 8 protrudes into the positioning grooves 83 through the positioning convex rib 41 and is axially fixed in the outer sleeve 4; the outer sleeve 4 is mainly made of metal material. After the plug sleeve 8 and the compression torsion spring 6 are assembled, the plug sleeve 8 is positioned by the stamped positioning convex rib 41, thereby fixing the entire structure.

[0032] The control plate 7 includes a control sleeve 71 and a rocker arm 72 radially connected to the control sleeve 71. The control sleeve 71 is rotatably sleeved outside the inner rod 5. The rocker arm 72 is connected to the brake structure. A torsion spring push surface 711 is provided on the control sleeve 71. The other end of the compression torsion spring 6 is circumferentially abutted against the torsion spring push surface 711. The control sleeve 71 can be sleeved on the inner rod 5. When the control sleeve 71 is driven by the rocker arm 72, the control sleeve 71 can be rotated, thereby utilizing the torsion spring push surface 711 to push the other end of the compression torsion spring 6 circumferentially, so that the compression torsion spring 6 is twisted.

[0033] The torsion spring sleeve 9 is provided with a limiting slit 91, and the rocker arm 72 swings between the limiting slit 91. The outer tube sleeve 4 is provided with a sleeve opening 42 corresponding to the limiting slit 91. The rocker arm 72 passes through the limiting slit 91 and the sleeve opening 42 and extends out of the outer tube sleeve 4. An opening cover 10 is sleeved on the rocker arm 72, and the opening cover 10 slides and covers the sleeve opening 42. The limiting slit 91 can limit the circumferential swing amplitude of the rocker arm 72 and control the range of expansion of the spring diameter of the compression torsion spring 6, and the opening cover 10 can always cover the sleeve opening 42 and the limiting slit 91 when the rocker arm 72 swings to prevent foreign matter or liquid from entering the outer tube.

[0034] In the present embodiment, it is preferred that two spaced-apart plug sleeves 8 are fixedly connected inside the outer tube sleeve 4, the torsion spring sleeve 9 is arranged between the two plug sleeves 8, the control sheet 7 is placed in the middle of the torsion spring sleeve 9, and a compression torsion spring 6 is respectively arranged between the left and right sides of the control sheet 7 and the two plug sleeves 8; the two compression torsion springs 6 can increase the friction force on the inner rod 5, thereby improving the locking effect of the folding structure.

[0035] The brake structure includes a brake handle 11, a brake cable sleeve 12 and a fixed arm 13. One end of the brake cable sleeve 12 is fixedly connected to the brake handle 11, and the other end is abutted or connected to the fixed arm 13. A brake cable 14 is arranged inside the brake cable sleeve 12. One end of the brake cable 14 is transmission-connected to the brake handle 11, and the other end passes through the fixed arm 13 and is connected to the rocker arm 72. A return spring 15 is arranged between the fixed arm 13 and the rocker arm 72, and the return spring 15 is sleeved on the brake cable 14.

[0036] Under normal circumstances, the return spring 15 stretches the fixed arm 13 and the rocker arm 72 apart, and the control sleeve 71 is reset, so that the compression torsion spring 6 tightens the inner rod 5 and locks the angle of the lifting frame 2. When adjusting the lifting frame 2, the caregiver holds the brake handle 11 and pulls the brake cable 14 backward relative to the brake cable sleeve 12, so that the rocker arm 72 swings toward the fixed arm 13, and the control sleeve 71 rotates to twist the compression torsion spring 6, thereby loosening the inner rod 5.

[0037] The raising frame 2 includes a raising support frame 21 used as a resistance arm, the front end of the raising support frame 21 is rotatably hinged with the lower frame tube 1, the rear end side of the raising support frame 21 is connected with a handle frame 22, the brake handle 11 is connected to the handle frame 22, and the left and right sides of the front end of the raising support frame 21 are both flipped and connected with an armpit frame 23 used as a power arm; the two armpit frames 23 are in an arc-shaped structure bent inward, and are clamped under the patient's armpits by two symmetrical armpit frames 23. Through the seesaw principle, the accompanying personnel can help the patient up with less force, thereby reducing the pressure on the accompanying personnel, and the operation method is simple.

[0038] An upper folding ear 16 is connected to the bottom of the rear end side of the lifting support frame 21, the outer end of the outer pipe sleeve 4 is rotatably hinged on the upper folding ear 16, the bottom of the lower frame tube 1 is connected to a lower folding support ear 17, the outer end of the inner rod 5 is adjustably connected to an adjustment seat 18, and the adjustment seat 18 is rotatably hinged on the lower folding support ear 17; the structure is simple, and the assembly is convenient and quick, so that there is space for the two ends of the folding structure to rotate.

[0039] The adjustment seat 18 is in a "U"-shaped structure, and a through hole is provided at the bottom for the outer end of the inner rod 5 to pass through. The outer end of the inner rod 5 is a threaded section, and nuts placed before and after the through hole are screwed into the threaded section. The length of the folding structure can be fine-tuned by turning the nut.

[0040] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A folding structure of a lifting device, comprising a lower frame tube (1) and a lifting frame (2), wherein the middle portion of the lifting frame (2) is rotatably hinged on the lower frame tube (1), and a folding structure (3) is hinged between the lower frame tube (1) and the resistance end of the lifting frame (2), characterized in that The folding structure (3) comprises an outer tube sleeve (4) and an inner rod (5) slidably connected to the outer tube sleeve (4); a compression torsion spring (6) elastically wound around the outer rod (5) and a control plate (7) movably arranged outside the inner rod (5) are arranged inside the outer tube sleeve (4); one end of the compression torsion spring (6) is fixedly connected to the outer tube sleeve (4); the other end of the compression torsion spring (6) is connected to the control plate (7); and a brake structure for pulling the control plate (7) to rotate around the inner rod (5) is provided on the standing frame (2) or the folding structure (3); the compression torsion spring (6) is twisted by rotating the control plate (7) to loosen or tighten the inner rod (5).

2. The folding structure of the lifting device according to claim 1 is characterized in that The folding structure (3) further comprises a plug sleeve (8) and a torsion spring sleeve (9) fixedly arranged in the outer tube sleeve (4); the compression torsion spring (6) and the control sheet (7) are arranged in the torsion spring sleeve (9); the plug sleeve (8) is arranged at one end of the torsion spring sleeve (9) and is provided with a bayonet (81) for fixing one end of the compression torsion spring (6).

3. The folding structure of the lifting device according to claim 2 is characterized in that The inner wall surface of the plug sleeve (8) is provided with an annular limiting step surface (82), and the end of the compression torsion spring (6) is abutted against the limiting step surface (82), and the limiting step surface (82) is composed of a part of an inclined end surface (821) and another part of a flat end surface (822).

4. The folding structure of the lifting device according to claim 2 is characterized in that The outer wall surface of the plug sleeve (8) is provided with a circle of positioning grooves (83); the outer sleeve (4) is provided with positioning convex ribs (41) formed inwardly by stamping corresponding to the positioning grooves (83); the plug sleeve (8) protrudes into the positioning grooves (83) through the positioning convex ribs (41) and is axially fixed in the outer sleeve (4).

5. The folding structure of the lifting device according to claim 2 is characterized in that The control plate (7) comprises a control sleeve (71) and a rocker arm (72) radially connected to the control sleeve (71); the control sleeve (71) is rotatably sleeved outside the inner rod (5); the rocker arm (72) is connected to the brake structure; a torsion spring push surface (711) is provided on the control sleeve (71); and the other end of the compression torsion spring (6) is circumferentially abutted against the torsion spring push surface (711).

6. The folding structure of the lifting device according to claim 5 is characterized in that The torsion spring sleeve (9) is provided with a limit slit (91), the rocker arm (72) swings between the limit slits (91), the outer tube sleeve (4) is provided with a sleeve opening (42) corresponding to the limit slit (91), the rocker arm (72) passes through the limit slit (91) and the sleeve opening (42) and extends out of the outer tube sleeve (4), and an opening cover (10) is sleeved on the rocker arm (72), and the opening cover (10) slides over and covers the sleeve opening (42).

7. The folding structure of the lifting device according to any one of claims 2 to 6, characterized in that The outer tube sleeve (4) is fixedly connected to two spaced-apart plug sleeves (8), the torsion spring sleeve (9) is arranged between the two plug sleeves (8), the control sheet (7) is placed in the middle of the torsion spring sleeve (9), and a compression torsion spring (6) is arranged between the left and right sides of the control sheet (7) and the two plug sleeves (8).

8. The folding structure of the lifting device according to claim 1 is characterized in that The brake structure comprises a brake handle (11), a brake wire sleeve (12) and a fixed arm (13); one end of the brake wire sleeve (12) is fixedly connected to the brake handle (11), and the other end is abutted against or connected to the fixed arm (13); a brake cable (14) is arranged inside the brake wire sleeve (12); one end of the brake cable (14) is transmission-connected to the brake handle (11), and the other end passes through the fixed arm (13) and is connected to the rocker arm (72); a return spring (15) is arranged between the fixed arm (13) and the rocker arm (72), and the return spring (15) is sleeved on the brake cable (14).

9. The folding structure of the lifting device according to claim 8 is characterized in that The raising frame (2) comprises a raising support frame (21) used as a resistance arm, the front end of the raising support frame (21) is rotatably hinged to the lower frame tube (1), the rear end side of the raising support frame (21) is connected to a handle frame (22), the brake handle (11) is connected to the handle frame (22), and the front end of the raising support frame (21) is turned and connected to an armpit frame (23) used as a power arm on both the left and right sides.

10. The folding structure of the lifting device according to claim 9 is characterized in that The bottom of the rear end side of the lifting support frame (21) is connected to an upper folding ear (16), the outer end of the outer tube sleeve (4) is rotatably hinged on the upper folding ear (16), the bottom of the lower frame tube (1) is connected to a lower folding support ear (17), the outer end of the inner rod (5) is adjustably connected to an adjustment seat (18), and the adjustment seat (18) is rotatably hinged on the lower folding support ear (17).

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