Shifting vehicle with getting-up assisting function

Abstract

The utility model relates to a shifting vehicle with a getting-up assisting function, which comprises a main vehicle frame, a seat component is arranged on the main vehicle frame, a plurality of rollers are mounted at the bottom of the main vehicle frame, a getting-up device is connected onto the main vehicle frame and comprises a lower frame tube and a getting-up support frame serving as a resisting arm, and the lower frame tube and the getting-up support frame are connected with the main vehicle frame. The lower frame pipe is installed on the upper portion of the main frame through a connecting assembly, the front end of the rising supporting frame is rotationally hinged to the lower frame pipe, a folding structure is rotationally hinged between the resistance end of the rising supporting frame and the lower frame pipe, and the rear end side of the rising supporting frame is connected with a handle frame. The left side and the right side of the front end of the getting-up supporting frame are connected with armpit frames serving as power arms, and the two armpit frames are arranged above the seat assembly. The getting-up device on the shifting trolley is clamped below the armpits of a patient through the two symmetrical armpit frames, an accompanying person can lift up the patient with small force according to the lever principle, the pressure of the accompanying person is relieved, and the operation mode is simple.

Description

Technical Field

[0001] The utility model relates to the field of lifting devices, in particular to a shifting vehicle with a lifting auxiliary function. 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 a considerable number of users who have difficulty in taking care of themselves and daily movement due to the inconvenience of their lower limbs. Such users usually need the help of a caregiver, or use a shifting cart to drive the patient to move. However, when the patient needs to go to the toilet or other places, the caregiver still needs to help or pick up the patient and lead the patient to the toilet. This process is relatively inconvenient. Therefore, before purchasing the shifting cart, you can only choose a shifting cart with a lifting structure according to your needs. However, the shifting cart currently in use is shown in a shifting cart in Chinese patent document, application number: CN202310642540.9. The applicant can only design a lifting device that can be installed on the shifting cart later based on the prior art to solve the above-mentioned prior art problems for consumers to choose to use. Summary of the invention

[0003] The utility model aims to provide a shifting vehicle with a standing-up assisting function which has a simple and reasonable structure, is easy to install and has a stable structure.

[0004] A shifting vehicle with a lifting assistance function comprises a main frame, wherein a seat assembly for carrying a user is arranged on the main frame, a plurality of rollers for driving the main frame to move are installed at the bottom of the main frame, a lifting device is connected to the main frame, and the lifting device comprises a lower frame tube and a lifting support frame used as a resistance arm, the lower frame tube is installed to the upper part of the main frame through a connecting assembly, the front end of the lifting support frame is rotatably hinged to the lower frame tube, and a folding structure is rotatably hinged between the resistance end of the lifting support frame and the lower frame tube, the rear end side of the lifting support frame is connected to a handle frame, and the left and right sides of the front end of the lifting support frame are connected to armpit frames used as power arms, and the two armpit frames are arranged above the seat assembly.

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

[0006] As a more specific solution, the connecting assembly includes two connecting parts and two connecting seats, the two connecting seats are fixed on the main frame, the two connecting parts are arranged on both sides of the lower frame tube, the connecting parts are connected with adjusting parts that slide with the lower frame tube, the adjusting parts are provided with one or more locking holes along the movement direction, and the lower frame tube is correspondingly provided with positioning parts that cooperate with the locking holes, and the positioning parts cooperate with the locking holes to adjust the distance between the two connecting parts so as to cooperate with the connecting seats.

[0007] As a further solution, the folding structure includes an outer tube sleeve and an inner rod slidably connected to the outer tube sleeve, the outer tube sleeve is provided with a compression torsion spring elastically wrapped 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 lifter or folding structure is provided with a brake structure for pulling the control plate to rotate around the inner rod, and the control plate is rotated to twist the compression torsion spring, so that the compression torsion spring loosens or tightens the inner rod.

[0008] As a further solution, the adjusting member is provided with a single elongated locking hole, and the locking hole is extended along the movement direction of the adjusting member; the positioning member includes a connecting hole and a fastening unit, and the connecting hole is provided on the lower rack tube corresponding to the locking hole, and the fastening unit passes through the locking hole and the connecting hole, so that the connecting member is assembled and connected with the lower rack tube.

[0009] As a further solution, one of the two connecting members is fixedly connected to one end of the lower rack tube, and the other is connected to an adjusting member and is slidably connected to the other end of the lower rack tube through the adjusting member.

[0010] As a further solution, a flip structure is provided between the two armpit frames and the standing support frame, and the two armpit frames are rotatably connected to the standing support frame via the flip structure.

[0011] As a further 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.

[0012] 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.

[0013] 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.

[0014] 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.

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

[0016] 1. The utility model is a transfer cart with a lifting assisting function. The lifting device on this transfer cart is clamped under the patient's armpits by two symmetrical armpit frames. The lever principle is used to enable the caregiver to lift the patient with less force, thereby reducing the pressure on the caregiver. The operation method is simple.

[0017] 2. The utility model provides a shifting cart with a lifting assistance function. This connection structure allows the distance between the two connecting parts to be adjusted at will through an adjusting piece, so that the lifting device can be added to the original shifting cart for use at a later stage. The structure has high safety and stability, and is easy and quick to install and disassemble. The adjustment operation is simpler and faster, and it can adapt to the use of shifting carts of different widths, thereby improving versatility.

[0018] 3. The utility model provides a shift cart with a lifting assistance function. The folding structure on this lifter utilizes a compression torsion spring to tighten the inner rod to lock the angle of the lifter. When the lifter 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 lifter 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 lifter lands, thereby avoiding patient injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of Example 1 of the present utility model.

[0020] Figure 2 It is a schematic diagram of the exploded structure of the lifting device and the main frame in the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the lifting device in the utility model.

[0022] Figure 4 It is a schematic diagram of the exploded structure of the connecting piece with the adjusting piece in the utility model.

[0023] Figure 5 This is a schematic diagram of the structure in which the connecting piece is fixed to the lower frame pipe in the utility model.

[0024] Figure 6 It is a schematic diagram of the decomposition structure of the folding structure in the utility model.

[0025] Figure 7 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.

[0026] Figure 8 It is a schematic diagram of the structure of the control piece in the utility model.

[0027] Fig. 9 This is a schematic diagram of the plug sleeve structure in the utility model.

[0028] Fig.10 It is a schematic diagram of the cooperation between the compression torsion spring and the limiting step surface in the utility model.

[0029] Fig.11 It is a schematic diagram of the decomposition of the standing device in the utility model.

[0030] Fig.12 It is a schematic diagram of the decomposed structure of the flip structure in the utility model.

[0031] Fig.13 It is a schematic diagram of the connection structure between the brake structure and the control plate in the utility model.

[0032] Fig.14 It is a schematic diagram of the connection structure between the folding structure and the erecting device in the utility model.

[0033] Fig.15 It is a schematic diagram of the exploded structure of the seat assembly in the present utility model.

[0034] Fig.16 This is a structural schematic diagram of Example 2 of the present utility model. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Embodiment 1:

[0036] like Figures 1 to 15As shown, the shifting vehicle with a lifting assist function comprises a main frame 1, on which a seat assembly 2 for carrying a user is arranged, a plurality of rollers 3 for driving the main frame 1 to move are installed at the bottom of the main frame 1, a lifting device 4 is connected to the main frame 1, the lifting device 4 comprises a lower frame tube 5 and a lifting support frame 6 used as a resistance arm, the lower frame tube 5 is installed to the upper part of the main frame 1 through a connecting assembly 7, the front end of the lifting support frame 6 is rotatably hinged to the lower frame tube 5, and a folding structure 8 is rotatably hinged between the resistance end of the lifting support frame 6 and the lower frame tube 5, the rear end side of the lifting support frame 6 is connected to a handle frame 9, the left and right sides of the front end of the lifting support frame 6 are connected to armpit frames 10 used as power arms, and the two armpit frames 10 are arranged above the seat assembly 2.

[0037] The utility model provides a lifting device 4 with a lifting assisting function, which is clamped under the patient's armpits by two symmetrical armpit frames 10. The lever principle is used to enable a caregiver to lift the patient with less force, thereby reducing the pressure on the caregiver and the operation method is simple.

[0038] The connecting assembly 7 includes two connecting members 71 and two connecting seats 72. The two connecting seats 72 are fixed on the main frame 1. The two connecting members 71 are arranged on both sides of the lower frame tube 5. The connecting member 71 is connected with an adjusting member 73 that slidably cooperates with the lower frame tube 5. The adjusting member 73 is provided with one or more locking holes 731 along the movement direction. The lower frame tube 5 is correspondingly provided with a positioning member 74 that cooperates with the locking hole 731. The positioning member 74 cooperates with the locking hole 731 to adjust the distance between the two connecting members 71 for corresponding cooperation with the connecting seat 72.

[0039] This connection structure allows the distance between the two connection members 71 to be adjusted arbitrarily through the adjustment member 73, so that the lifting device 4 can be added to the original shifting vehicle for use at a later stage. The structure has high safety and stability, and is easy and quick to install and disassemble. The adjustment operation method is simpler and faster, and it can adapt to the use of shifting vehicles of different widths, thereby improving versatility.

[0040] The folding structure 8 includes an outer tube sleeve 81 and an inner rod 82 slidably connected to the outer tube sleeve 81. The outer tube sleeve 81 is provided with a compression torsion spring 83 elastically wound around the inner rod 82 and a control plate 84 movably arranged outside the inner rod 82. One end of the compression torsion spring 83 is fixedly connected to the outer tube sleeve 81, and the other end of the compression torsion spring 83 is connected to the control plate 84. In addition, a brake structure for pulling the control plate 84 to rotate around the inner rod 82 is provided on the lifting device 4 or the folding structure 8. The compression torsion spring 83 is twisted by rotating the control plate 84 to loosen or tighten the inner rod 82.

[0041] The folding structure 8 on this type of lifter 4 utilizes a compression torsion spring 83 to tighten the inner rod 82, and locks the angle of the lifter 4 by friction. When the lifter 4 is in use, the brake structure drives the control plate 84 to twist one end of the compression torsion spring 83, so that the spring diameter of the compression torsion spring 83 is expanded, and the contact area between the compression torsion spring 83 and the inner rod 82 is reduced, and the friction is reduced, thereby loosening the inner rod 82, and the inner rod 82 telescopically moves relative to the outer sleeve, so that the lifter 4 can swing freely, and the angle of the lifter 4 can be adjusted to help the patient stand up. This structure has high reliability, good durability, and is simple and easy to operate.

[0042] The folding structure 8 further comprises a plug sleeve 85 and a torsion spring sleeve 86 fixedly arranged in the outer tube sleeve 81, the compression torsion spring 83 and the control sheet 84 are placed in the torsion spring sleeve 86, the plug sleeve 85 is placed at one end of the torsion spring sleeve 86, and is provided with a bayonet 851 for fixing one end of the compression torsion spring 83;

[0043] The torsion spring sleeve 86 can protect the compression torsion spring 83 and prevent the torsion spring sleeve 86 from excessive deformation. The plug sleeve 85 can limit the end of the compression torsion spring 83 and realize a fixed connection of one end of the compression torsion spring 83. When the other end is twisted, the compression torsion spring 83 will not rotate synchronously.

[0044] The adjusting member 73 is provided with a single long locking hole 731, and the locking hole 731 is extended along the movement direction of the adjusting member 73; the positioning member 74 includes a connecting hole 741 and a fastening unit 742, and the connecting hole 741 is provided on the lower rack tube 5 and corresponds to the locking hole 731. The fastening unit 742 passes through the locking hole 731 and the connecting hole 741, so that the connecting member 71 is assembled and connected with the lower rack tube 5.

[0045] The adjusting member 73 includes two symmetrically arranged adjusting plates 732, which are clamped on the end of the lower rack tube 5 front and back or up and down, and the locking hole 731 is opened on the adjusting plate 732; the width of the adjusting plate 732 is similar to the width of the lower rack tube 5. By clamping the lower rack tube 5 with the two adjusting plates 732, front and back or up and down limiting can be achieved, which facilitates the matching connection between the locking hole 731 and the positioning member 74.

[0046] When adjusting the width of the two connecting members 71, loosen the fastening unit 742 such as screws or bolts to allow the adjustment plate 732 to slide left and right under the limiting action of the locking hole 731 and the fastening unit 742. After adjusting to the required distance, tighten the fastening unit 742 again to lock the distance between the two connecting members 71.

[0047] One of the two connecting members 71 is fixedly connected to one end of the lower frame pipe 5 (such as Figure 5As shown), the other end is connected with an adjusting member 73 and is slidably connected to the other end of the lower frame tube 5 through the adjusting member 73; since the widths of shifting vehicles of different specifications are not much different, only the connecting member 71 at one end is required to be adjustable.

[0048] The connecting member 71 includes a pivot sleeve 711 and a connecting pivot 712. The pivot sleeve 711 is fixedly connected to the lower frame tube 5 or the adjusting member 73. The upper portion of the connecting pivot 712 is connected to the pivot sleeve 711, and the lower portion of the connecting pivot 712 extends out of the pivot sleeve 711.

[0049] The connecting seat 72 includes a sleeve, which is integrally welded to the main frame 1. The lower part of the connecting pivot 712 is inserted into the sleeve, and a threaded hole can also be opened at the bottom of the connecting pivot 712. The connecting member 71 is fixedly connected to the sleeve by connecting bolts in the threaded hole.

[0050] The upper portion of the connecting pivot 712 is provided with a head 713 adapted to the inner diameter of the pivot sleeve 711 , the pivot sleeve 711 is sleeved outside the head 713 , and a supporting ring 714 extending below the head 713 for supporting the pivot sleeve 711 .

[0051] A flip structure 11 is provided between the two armpit frames 10 and the standing support frame 6 , and the two armpit frames 10 are rotatably connected to the standing support frame 6 via the flip structure 11 .

[0052] The flip structure 11 includes a fixed shaft sleeve 111, a rotating shaft sleeve 112 and a connecting shaft 113. The pair of fixed shaft sleeves 111 are fixed at the front end of the lifting support frame 6 in an "eight" structure, and the pair of rotating shaft sleeves 112 are fixed at the rear ends of the two armpit frames 10 in an "eight" structure. The fixed shaft sleeve 111 and the rotating shaft sleeve 112 are respectively sleeved on the lower part and the upper part of the connecting shaft 113;

[0053] The armpit frames 10 are rotated in the above manner, which can realize a folding function on the one hand, and on the other hand, the two armpit frames 10 can swing back and forth in an "eight" shape and stop after touching the human body, so that the two armpit frames 10 can adapt to patients with different body widths, thereby improving the practicality of the two armpit frames 10.

[0054] The inner wall surface of the plug sleeve 85 is provided with an annular limiting step surface 852, and the end of the compression torsion spring 83 is abutted against the limiting step surface 852, and the limiting step surface 852 is composed of a part of an inclined end surface 852a and another part of a flat end surface 852b;

[0055] When the compression torsion spring 83 is twisted, in addition to the expansion of the spring diameter, the axial length of the compression torsion spring 83 is also increased. An inclined end surface 852a is provided on the limiting step surface 852. On the one hand, it can support the end of the compression torsion spring 83 under normal conditions so that its two ends are respectively located on the plug sleeve 85 and the control plate 84. When it is twisted and deformed, it also has axial movement space until it is abutted against the flat end surface 852b.

[0056] A circle of positioning grooves 853 are provided on the outer wall surface of the plug sleeve 85, and a positioning convex rib 811 is provided on the outer sleeve 81 corresponding to the positioning grooves 853. The plug sleeve 85 protrudes into the positioning grooves 853 through the positioning convex rib 811 and is axially fixed in the outer sleeve 81; the outer sleeve 81 is mainly made of metal material. After the plug sleeve 85 and the compression torsion spring 83 are assembled, the plug sleeve 85 is positioned by the stamped positioning convex rib 811, thereby fixing the entire structure.

[0057] The control plate 84 includes a control sleeve 841 and a rocker arm 842 radially connected to the control sleeve 841. The control sleeve 841 is rotatably sleeved outside the inner rod 82. The rocker arm 842 is connected to the brake structure. A torsion spring push surface 843 is provided on the control sleeve 841. The other end of the compression torsion spring 83 is circumferentially abutted against the torsion spring push surface 843. The control sleeve 841 can be sleeved on the inner rod 82. When the control sleeve 841 is driven by the rocker arm 842, the control sleeve 841 can be rotated, thereby utilizing the torsion spring push surface 843 to push the other end of the compression torsion spring 83 circumferentially, so that the compression torsion spring 83 is twisted.

[0058] The torsion spring sleeve 86 is provided with a limiting slit 861, and the rocker arm 842 swings between the limiting slit 861. The outer tube sleeve 81 is provided with a sleeve opening 812 corresponding to the limiting slit 861. The rocker arm 842 passes through the limiting slit 861 and the sleeve opening 812 and extends out of the outer tube sleeve 81, and an opening cover 87 is sleeved on the rocker arm 842, and the opening cover 87 slides and covers the sleeve opening 812; the limiting slit 861 can limit the circumferential swing amplitude of the rocker arm 842 and control the range of expansion of the spring diameter of the compression torsion spring 83, and the opening cover 87 can always cover the sleeve opening 812 and the limiting slit 861 when the rocker arm 842 swings, so as to prevent foreign matter or liquid from entering the outer tube.

[0059] In the present embodiment, it is preferred that two spaced-apart plug sleeves 85 are fixedly connected inside the outer tube sleeve 81, the torsion spring sleeve 86 is arranged between the two plug sleeves 85, the control sheet 84 is placed in the middle of the torsion spring sleeve 86, and a compression torsion spring 83 is respectively arranged between the left and right sides of the control sheet 84 and the two plug sleeves 85; the two compression torsion springs 83 can increase the friction force on the inner rod 82, thereby improving the locking effect of the folding structure 8.

[0060] The brake structure includes a brake handle 121, a brake cable sleeve 122 and a fixed arm 123, one end of the brake cable sleeve 122 is fixedly connected to the brake handle 121, and the other end is abutted against or connected to the fixed arm 123; a brake cable 124 is inserted into the brake cable sleeve 122, one end of the brake cable 124 is transmission-connected to the brake handle 121, and the other end passes through the fixed arm 123 and is connected to the rocker arm 842, a return spring 125 is provided between the fixed arm 123 and the rocker arm 842, and the return spring 125 is sleeved on the brake cable 124.

[0061] Under normal conditions, the return spring 125 stretches the fixed arm 123 and the rocker arm 842 apart, and the control sleeve 841 is reset, so that the compression torsion spring 83 tightens the inner rod 82 and locks the angle of the lifter 4. When adjusting the lifter 4, the attendant holds the brake handle 121 and pulls the brake cable 124 backward relative to the brake cable sleeve 122, so that the rocker arm 842 swings toward the fixed arm 123, and the control sleeve 841 rotates to twist the compression torsion spring 83, thereby loosening the inner rod 82.

[0062] The front end side of the raising support frame 6 is connected to a pillow 13 made of elastic material or soft material. The pillow 13 is arranged between the two armpit frames 10, and the pillow 13 is provided with a contact arc surface 131 that fits the shape of the human body; when the patient is raised by the two armpit frames 10, the pillow 13 allows the patient's body to lean on, thereby improving comfort.

[0063] The two armpit frames 10 are in an arc-shaped structure bent inwardly, and a removable elastic sleeve 14 is provided on the armpit frame 10. The elastic sleeve 14 is made of foam material, silicone material, or plastic material. The elastic sleeve 14 is relatively thick. When the patient is lifted from the armpit, the elastic sleeve 14 can relieve pressure and improve the comfort of the lifting device.

[0064] like Fig.14 As shown, the bottom of the rear end side of the rising support frame 6 is connected to an upper folding ear 601, the outer end of the outer tube sleeve 81 is rotatably hinged on the upper folding ear 601, the bottom of the lower frame tube 5 is connected to a lower folding support ear 501, and the outer end of the inner rod 82 is adjustably connected to an adjustment seat 88, and the adjustment seat 88 is rotatably hinged on the lower folding support ear 501; the structure is simple and the assembly is convenient and quick, so that both ends of the folding structure 8 have space for rotation.

[0065] In addition, if Figure 2 and Fig.15As shown, the main frame 1 includes a fixed support rod 101 and a lifting support rod 102 arranged on the left and right, the left and right fixed support rods 101 are fixedly connected by a lower beam tube 103, the bottoms of the left and right fixed support rods 101 are folded and connected with rear legs 104, the rear legs 104 are placed under the seat assembly 2, the front ends of the left and right fixed support rods 101 are respectively connected with a roller 3, and the rear ends of the left and right rear legs 104 are respectively connected with a roller 3;

[0066] The lifting support rod 102 is slidably sleeved on the fixed support rod 101, the seat assembly 2 and the riser 4 are assembled and connected to the lifting support rod 102, a lifting hydraulic pump body 105 is fixed on the lower beam tube 103, and the output end of the lifting hydraulic pump body 105 is connected to a lifting frame 106, and the lifting frame 106 is fixedly connected to the upper part of the lifting support rod 102 to drive the lifting support rod 102 up and down by hydraulic pressure.

[0067] The seat assembly 2 includes left and right seat frames 201, which are rotatably connected to left and right lifting support rods 102 respectively. The left and right seat frames 201 are both connected to seat plates 202, and a defecation opening 203 is formed between the two seat plates 202. A defecation bucket 204 placed below the defecation opening is detachably connected to the main frame 1.

[0068] The remaining structures of the main frame 1 and the seat assembly 2 belong to the prior art, and specific reference may be made to the prior art, as shown in the quick disassembly and assembly structure of a shifting vehicle in Patent No.: CN202121707980.0, which will not be elaborated in detail here. Embodiment 2:

[0069] In the second embodiment, Fig.16 As shown, the adjusting member 73 includes an adjusting tube 733, and the adjusting tube 733 is linearly slidably inserted into the lower frame tube 5 through the tube mouth of the lower frame tube 5, and the locking hole 731 is provided on the adjusting tube 733; the lower frame tube 5 and the adjusting tube 733 are in a square tube structure, and after the adjusting tube 733 is inserted into the lower frame tube 5, the adjusting tube 733 can be prevented from rotating, and the adjustment process is simple and convenient.

[0070] In this embodiment, the fastening unit 742 includes a screw 7421, a knob 7422 and a nut 7423. The knob 7422 is fixed to one end of the screw 7421 to drive the screw 7421 to rotate forward and reversely. The screw 7421 passes through the locking hole 731 and the connecting hole 741. The nut 7423 is placed on the back side of the lower rack tube 5 and is threadedly connected to the other end of the screw 7421.

[0071] The connecting member 71 includes a fixed vertical tube 715 and a sling base claw 716. The fixed vertical tube 715 is fixedly connected to the lower frame tube 5 or to the adjusting member 73. The sling base claw 716 is an inverted U-shaped structure and is fixedly connected to the bottom of the fixed vertical tube 715. A fixing hole 717 is provided on the sling base claw 716. Since the connection position of the connecting member 71 on the shifting vehicle belongs to the handle tube position, in this embodiment, the connecting member 71 is composed of the fixed vertical tube 715 and the sling base claw 716. After the sling base claw 716 is forked on the handle tube, the fixing unit is used to pass through the fixing hole 717 at the opening position to fix the lifting device.

[0072] 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 transfer vehicle with a standing assistance function, comprising a main frame (1), wherein a seat assembly (2) for carrying a user is arranged on the main frame (1), and a plurality of rollers (3) for driving the main frame (1) to move are installed at the bottom of the main frame (1), characterized in that The main frame (1) is connected to a lifting device (4), the lifting device (4) comprises a lower frame tube (5) and a lifting support frame (6) used as a resistance arm, the lower frame tube (5) is installed on the upper part of the main frame (1) through a connecting assembly (7), the front end of the lifting support frame (6) is rotatably hinged with the lower frame tube (5), and a folding structure (8) is rotatably hinged between the resistance end of the lifting support frame (6) and the lower frame tube (5), the rear end side of the lifting support frame (6) is connected to a handle frame (9), and the left and right sides of the front end of the lifting support frame (6) are connected to armpit frames (10) used as power arms, and the two armpit frames (10) are arranged above the seat assembly (2).

2. The transfer vehicle with standing assistance function according to claim 1, characterized in that: The connecting assembly (7) comprises two connecting members (71) and two connecting seats (72), wherein the two connecting seats (72) are fixed on the main frame (1), and the two connecting members (71) are arranged on both sides of the lower frame tube (5) on the left and right sides, and the connecting member (71) is connected to an adjusting member (73) that slidably cooperates with the lower frame tube (5), and the adjusting member (73) is provided with one or more locking holes (731) along the moving direction, and the lower frame tube (5) is correspondingly provided with a positioning member (74) that cooperates with the locking hole (731), and the positioning member (74) cooperates with the locking hole (731) to adjust the distance between the two connecting members (71) so as to cooperate with the connecting seats (72).

3. The transfer vehicle with standing assistance function according to claim 1, characterized in that: The folding structure (8) comprises an outer tube sleeve (81) and an inner rod (82) slidably connected to the outer tube sleeve (81); a compression torsion spring (83) elastically wound around the outer rod (82) and a control plate (84) movably arranged outside the inner rod (82) are arranged inside the outer tube sleeve (81); one end of the compression torsion spring (83) is fixedly connected to the outer tube sleeve (81); the other end of the compression torsion spring (83) is connected to the control plate (84); and a brake structure for pulling the control plate (84) to rotate around the inner rod (82) is provided on the lifting device (4) or the folding structure (8); the compression torsion spring (83) is twisted by rotating the control plate (84) so ​​that the compression torsion spring (83) loosens or winds the inner rod (82).

4. The transfer vehicle with standing assistance function according to claim 2, characterized in that: The adjusting member (73) is provided with a single long strip-shaped locking hole (731), and the locking hole (731) is extended along the movement direction of the adjusting member (73); the positioning member (74) comprises a connecting hole (741) and a fastening unit (742), and the connecting hole (741) is provided on the lower frame tube (5) and is arranged corresponding to the locking hole (731), and the fastening unit (742) passes through the locking hole (731) and the connecting hole (741), so that the connecting member (71) and the lower frame tube (5) are assembled and connected.

5. The transfer vehicle with standing assistance function according to claim 2 is characterized in that : One of the two connecting members (71) is fixedly connected to one end of the lower frame tube (5), and the other is connected to an adjusting member (73) and is slidably connected to the other end of the lower frame tube (5) through the adjusting member (73).

6. The transfer vehicle with standing assistance function according to claim 1, characterized in that: A flip structure (11) is provided between the two armpit frames (10) and the standing support frame (6), and the two armpit frames (10) are rotatably connected to the standing support frame (6) via the flip structure (11).

7. The transfer vehicle with standing assistance function according to claim 3, characterized in that: The folding structure (8) further comprises a plug sleeve (85) and a torsion spring sleeve (86) fixedly arranged in the outer tube sleeve (81); the compression torsion spring (83) and the control sheet (84) are arranged in the torsion spring sleeve (86); the plug sleeve (85) is arranged at one end of the torsion spring sleeve (86) and is provided with a bayonet (851) for fixing one end of the compression torsion spring (83).

8. The transfer vehicle with standing assistance function according to claim 7, characterized in that: The control plate (84) comprises a control sleeve (841) and a rocker arm (842) radially connected to the control sleeve (841); the control sleeve (841) is rotatably sleeved outside the inner rod (82); the rocker arm (842) is connected to the brake structure; a torsion spring push surface (843) is provided on the control sleeve (841); the other end of the compression torsion spring (83) is circumferentially abutted against the torsion spring push surface (843).

9. The transfer vehicle with standing assistance function according to claim 8, characterized in that: The torsion spring sleeve (86) is provided with a limit slit (861), the rocker arm (842) swings between the limit slit (861), the outer tube sleeve (81) is provided with a sleeve opening (812) corresponding to the limit slit (861), the rocker arm (842) passes through the limit slit (861) and the sleeve opening (812) and extends out of the outer tube sleeve (81), and an opening cover (87) is sleeved on the rocker arm (842), and the opening cover (87) slidably covers the sleeve opening (812).

10. The transfer vehicle with standing assistance function according to claim 8, characterized in that: The brake structure comprises a brake handle (121), a brake wire sleeve (122) and a fixed arm (123); one end of the brake wire sleeve (122) is fixedly connected to the brake handle (121), and the other end is abutted against or connected to the fixed arm (123); a brake cable (124) is arranged inside the brake wire sleeve (122); one end of the brake cable (124) is transmission-connected to the brake handle (121), and the other end passes through the fixed arm (123) and is connected to the rocker arm (842); a return spring (125) is arranged between the fixed arm (123) and the rocker arm (842), and the return spring (125) is sleeved on the brake cable (124).

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