Connecting mechanism for electrically-driven wheelchair head, wheelchair head and wheelchair

Abstract

The utility model belongs to the technical field of wheelchairs, and particularly relates to a connecting mechanism for a wheelchair electric drive headstock, the headstock and a wheelchair. The locking clamping blocks are arranged on the two sides of the telescopic piece and movably connected with the telescopic piece; the connector is arranged below the clamping piece; the connector is suitable for being connected with the clamping piece in a clamped mode so that the clamping piece can be detached conveniently. According to the connecting mechanism for the electrically-driven wheelchair head, the wheelchair head and the wheelchair, the distance between the two locking clamping blocks is adjusted when the telescopic piece stretches out and draws back so as to adapt to wheelchair supporting frames with different distances, the distance between the two locking clamping blocks can be adjusted when the telescopic piece stretches out and draws back so as to adapt to the wheelchair supporting frames with different distances, and therefore the effect of high adaptability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheelchairs, and particularly relates to a connecting mechanism for an electrically driven front end of a wheelchair, a front end and a wheelchair. Background Art

[0002] Manual wheelchairs are mostly used by patients, disabled people, and the elderly. They are typically pushed by caregivers or moved by the user themselves using the handwheels, making them particularly inconvenient for long-distance travel. Consequently, a rideable wheelchair has emerged on the market. This wheelchair consists of a head and a wheelchair, which are detachably connected via a connecting mechanism, giving the manual wheelchair the electric ride function.

[0003] The connecting mechanism in the existing technology is usually fixed on the support frame of the wheelchair. Since the connecting mechanism is formed by integral welding, its installation spacing is only suitable for a small number of wheelchair support frames and cannot be adapted to the support frames of most wheelchairs on the market. Attachments need to be installed separately, resulting in the design of the connection mechanism between the vehicle head and the wheelchair being too complicated and bulky overall.

[0004] Therefore, in order to solve the above problems, it is necessary to design a connecting mechanism for a wheelchair electric drive head, a head and a wheelchair. Utility Model Content

[0005] The purpose of the utility model is to provide a connecting mechanism for an electrically driven wheelchair head, a head and a wheelchair, so as to solve the technical problem of low adaptability of the existing connecting mechanism to the wheelchair.

[0006] In order to solve the above technical problems, the present invention provides a connecting mechanism for an electrically driven wheelchair head, comprising:

[0007] A telescopic member and a clamping member sleeved on the middle part of the telescopic member;

[0008] Locking clamps are provided on both sides of the telescopic member and are movably connected to the telescopic member;

[0009] The connector is arranged below the card connector; wherein

[0010] The connector is adapted to be engaged with the card connector to facilitate disassembly of the card connector; and

[0011] The telescopic member is suitable for adjusting the distance between the two locking clamps during telescoping to adapt to wheelchair support frames with different distances.

[0012] Furthermore, the telescopic member includes: an open sleeve, support rods arranged on both sides of the open sleeve, and a first opening locking member clamped at both ends of the open sleeve; wherein

[0013] The two support rods are slidably connected to the inner wall of the open sleeve; and

[0014] The first opening locking member is adapted to press the opening sleeve when locking, so that the opening sleeve is in close contact with the support rod.

[0015] Furthermore, an inner tooth portion is provided on the inner wall of the open sleeve;

[0016] The surface of the support rod is provided with an external tooth portion;

[0017] The inner tooth portion meshes with the outer tooth portion.

[0018] Furthermore, the other ends of the two support rods are provided with flat portions;

[0019] The locking clamp includes: an inner clamp connected to the flat portion, an outer clamp in contact with the inner clamp, a first hammer nut rotatably connected to the inner clamp, a second hammer nut rotatably connected to the outer clamp, and at least one screw;

[0020] At least one first through portion is formed on the inner clamping block;

[0021] At least one second through portion is formed on the outer clamping block;

[0022] The first hammer nut passes through the first through portion transversely;

[0023] The second hammer nut passes through the second through portion transversely;

[0024] The screw is suitable for passing through the second hammer nut in the second through portion and then engaging with the first hammer nut in the first through portion, so that the outer clamping block and the inner clamping block clamp the support frame steel pipe.

[0025] Furthermore, the clamping member includes: two triangular members sleeved on the open sleeve and at least two clamping posts for connecting the two triangular members;

[0026] The connector comprises: a housing provided with at least two placement portions, a lock hook hinged to the inner wall of the housing, a fixing post disposed in the housing, a spring connected to the fixing post and the lock hook, a limit pin disposed in the housing, a front pull rod hinged to the inner wall of the housing, a rear pull rod hinged to the front pull rod and the lock hook, and a guide post disposed in the housing; wherein

[0027] The clamping column is suitable for being placed in any placement portion before squeezing the lock hook member to stretch the spring; and

[0028] The spring is suitable for rebounding when not stretched, so as to drive the lock hook to reset, so as to limit the position of the clamping column in any placement part.

[0029] Furthermore, one end of the housing is connected to a crossbeam;

[0030] The outer side of the crossbeam is provided with a second opening locking piece;

[0031] The crossbeam is adapted to slide within the second opening locking member; and

[0032] The second opening locking piece is adapted to be in close contact with the crossbeam when locked, so as to fix the crossbeam.

[0033] On the other hand, the present invention also provides a vehicle head, comprising:

[0034] The main bracket and the connecting mechanism for the electric drive head of the wheelchair; wherein

[0035] The main bracket is provided with a guide rail portion and a plurality of threaded holes arranged at equal distances;

[0036] A sliding member is slidably connected to the guide rail portion; wherein

[0037] The sliding member is movably connected to the second opening locking member;

[0038] The sliding member is bolted to the main bracket; and

[0039] The bolts are adapted to penetrate the sliding member and then engage with the threaded holes, so as to fix the sliding member on the threaded holes at different positions.

[0040] Furthermore, a battery pack is provided on the main bracket;

[0041] The upper portion of the main bracket is rotatably connected to a folding handlebar;

[0042] The folding handlebar is provided with a wire-controlled switch;

[0043] The traction wire of the wire-controlled switch is suitable for passing through the main bracket, the crossbeam, the guide column and then connected to the front pull rod; and

[0044] The wire-controlled switch is suitable for causing the traction wire to pull the front pull rod to rotate a certain angle when it is turned on, so as to cancel the limit of the clamping column in any placement part by pulling the lock hook part through the rear pull rod.

[0045] Furthermore, the lower portion of the main support is rotatably connected to a wheel frame;

[0046] The wheel frame is provided with a wheel hub;

[0047] A tire is provided on the wheel hub;

[0048] The wheel frame is connected to the folding handlebar; and

[0049] The wheel frame is adapted to rotate along with the rotation of the folding handlebar;

[0050] The main bracket is bolted with a connecting seat;

[0051] The connecting seat is provided with a connecting sleeve;

[0052] A tension spring is provided between the connecting sleeve and the main bracket;

[0053] The inner wall of the connecting sleeve is slidably connected to an auxiliary wheel support frame;

[0054] Auxiliary wheels are provided on both sides of the auxiliary wheel support frame;

[0055] The bolts are adapted to penetrate the connection base and engage with the threaded holes to fix the connection base to the threaded holes at different positions;

[0056] The connecting sleeve is provided with a through hole;

[0057] The auxiliary wheel support frame is provided with at least two bolt holes;

[0058] The through hole is arranged concentrically with any bolt hole.

[0059] In a third aspect, the present invention further provides a wheelchair, comprising:

[0060] The wheelchair body, the connecting mechanism for the wheelchair electric drive head and the head; wherein

[0061] The wheelchair body comprises: a steel pipe support frame; and

[0062] The inner clamping block and the outer clamping block are suitable for being clamped on the steel pipe support frame.

[0063] The beneficial effects of the utility model are:

[0064] (1) The present invention adjusts the spacing between the two locking clamps by extending and retracting the telescopic member to fix the locking clamps on the wheelchair, and simultaneously engages the clamping member with the connector to facilitate removal of the clamping member. Through the above steps, the invention achieves the effects of high adaptability and easy disassembly and storage.

[0065] (2) The utility model provides a first hammer nut, a second hammer nut and a screw, and the inner clamping block is rotatably connected to the first hammer nut, and the outer clamping block is rotatably connected to the second hammer nut, so as to increase the opening and closing angle of the inner clamping block and the outer clamping block to adapt to support frame steel pipes of different diameters.

[0066] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0067] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0069] Figure 1 It is an exploded view of a preferred embodiment of the connecting mechanism of the present utility model;

[0070] Figure 2 It is an exploded view of a preferred embodiment of the telescopic member of the present utility model;

[0071] Figure 3 It is an exploded view of a preferred embodiment of the locking clamp of the present utility model;

[0072] Figure 4 It is a three-dimensional diagram of a preferred embodiment of the connector of the present utility model;

[0073] Figure 5 It is a three-dimensional diagram of the preferred embodiment of the vehicle head of the utility model. Figure 1 ;

[0074] Figure 6 It is a three-dimensional diagram of the preferred embodiment of the vehicle head of the utility model. Figure 2 ;

[0075] Figure 7 It is a three-dimensional diagram of a preferred embodiment of the wheelchair of the present invention.

[0076] In the picture:

[0077] Telescopic member 1, open sleeve 101, inner tooth portion 1011, support rod 102, outer tooth portion 1021, flat portion 1022, first opening locking member 103

[0078] Snap-on part 2, triangular part 201, snap-on column 202;

[0079] Locking clamp 3, inner clamp 301, first through portion 3011, outer clamp 302, second through portion 3021, first hammer nut 303, second hammer nut 304, screw 305;

[0080] Connector 4, housing 401, placement portion 4011, lock hook 402, fixing column 403, spring 404, limit pin 405, front pull rod 406, rear pull rod 407, guide column 408;

[0081] Crossbeam 5, second opening locking member 6;

[0082] Main bracket 7, guide rail portion 701, threaded hole 702;

[0083] Sliding member 8, battery pack 9, folding handlebar 10, wire-controlled switch 11, wheel frame 12, wheel hub 13, tire 14, connecting seat 15, connecting sleeve 16, through hole 1601, tension spring 17, auxiliary wheel support frame 18, bolt hole 1801, auxiliary wheel 19;

[0084] Wheelchair body 20, steel pipe support frame 2001. DETAILED DESCRIPTION

[0085] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention. Example 1

[0086] like Figures 1 to 4 As shown, this embodiment provides a connection mechanism for an electrically driven wheelchair head, comprising:

[0087] A telescopic member 1 and a clamping member 2 sleeved on the middle of the telescopic member 1; locking clamps 3 arranged on both sides of the telescopic member 1, which are movably connected to the telescopic member 1; a connector 4, arranged below the clamping member 2; wherein the connector 4 is suitable for clamping with the clamping member 2 to facilitate the disassembly of the clamping member 2; and the telescopic member 1 is suitable for adjusting the spacing between the two locking clamps 3 during telescoping to adapt to wheelchair support frames with different spacings; wherein the telescopic member 1 adopts bidirectional telescoping as the most preferred.

[0088] In this embodiment, the telescopic member 1 is extended and retracted to adjust the distance between the two locking clamps 3 so as to fix the locking clamps 3 on the wheelchair, and the clamping member 2 is clamped to the connector 4 to facilitate the removal of the clamping member 2. Through the above steps, the effect of high adaptability and easy disassembly and storage is achieved.

[0089] The telescopic member 1 includes: an open sleeve 101, support rods 102 arranged on both sides of the open sleeve 101 and a first open locking member 103 clamped at both ends of the open sleeve 101; wherein the two support rods 102 are slidingly connected to the inner wall of the open sleeve 101; and the first open locking member 103 is suitable for squeezing the open sleeve 101 when locking so that the open sleeve 101 is in close contact with the support rods 102; by providing the open sleeve 101, it is possible to curl it so that it is in close contact with the support rods 102 when curled; by providing the first open locking member 103, the effect of locking the open sleeve 101 is achieved.

[0090] An inner tooth portion 1011 is provided on the inner wall of the open sleeve 101; an outer tooth portion 1021 is provided on the surface of the support rod 102; wherein the inner tooth portion 1011 is meshed with the outer tooth portion 1021; by providing the inner tooth portion 1011 and the outer tooth portion 1021, the effect of preventing the support rod 102 from rotating in the open sleeve 101 is achieved.

[0091] The other ends of the two support rods 102 are provided with a flat portion 1022; the locking clamp 3 includes: an inner clamp 301 connected to the flat portion 1022, an outer clamp 302 in contact with the inner clamp 301, a first hammer nut 303 rotatably connected to the inner clamp 301, a second hammer nut 304 rotatably connected to the outer clamp 302, and at least one screw 305; wherein the inner clamp 301 is provided with at least one first through portion 3011; the outer clamp 302 is provided with at least one second through portion 3021; the first hammer nut 303 horizontally passes through the first through portion 3011; the second hammer nut 304 horizontally passes through the second through portion 3021; The screw 305 is suitable for passing through the second hammer nut 304 in the second through portion 3021 and then engaging with the first hammer nut 303 in the first through portion 3011, so that the outer clamping block 302 and the inner clamping block 301 can clamp the support frame steel pipe; by providing the flat portion 1022, the effect of facilitating the connection between the inner clamping block 301 and the support rod 102 is achieved; by providing the first hammer nut 303, the second hammer nut 304 and the screw 305, and the inner clamping block 301 is rotatably connected to the first hammer nut 303, and the outer clamping block 302 is rotatably connected to the second hammer nut 304, the opening and closing angle of the inner clamping block 301 and the outer clamping block 302 is increased to adapt to support frame steel pipes of different diameters.

[0092] The clamping member 2 includes: two triangular members 201 sleeved on the open sleeve 101 and at least two clamping posts 202 for connecting the two triangular members 201; the connector 4 includes: a shell 401 with at least two placement portions 4011, a lock hook 402 hinged to the inner wall of the shell 401, a fixing post 403 arranged in the shell 401, a spring 404 connected to the fixing post 403 and the lock hook 402, a limit pin 405 arranged in the shell 401, a spring 405 hinged to the inner wall of the shell 401, and a spring 406 connected to the fixing post 406 and the lock hook 406. A front pull rod 406 connected to the front pull rod 406, a rear pull rod 407 hinged to the front pull rod 406 and the lock hook 402, and a guide column 408 arranged in the shell 401; wherein the clamping column 202 is suitable for being placed in any placement part 4011 to squeeze the lock hook 402 and stretch the spring 404; and the spring 404 is suitable for rebounding when not stretched, so as to drive the lock hook 402 to reset, so as to limit the clamping column 202 in any placement part 4011; wherein the limit pin 405 is suitable for limiting the lock hook 402.

[0093] One end of the shell 401 is connected to the beam 5; the outer side of the beam 5 is provided with a second opening locking piece 6; wherein the beam 5 is suitable for sliding in the second opening locking piece 6; and the second opening locking piece 6 is suitable for being tightly attached to the beam 5 when locked to fix the beam 5; by setting the second opening locking piece 6, the effect of adjusting the position of the beam 5 is achieved. Example 2

[0094] like Figures 1 to 6 As shown, this embodiment further provides a vehicle head, comprising:

[0095] A connecting mechanism between the main bracket 7 and the electric drive head of the wheelchair; wherein the main bracket 7 is provided with a guide rail portion 701 and a plurality of equidistantly arranged threaded holes 702; a sliding member 8 is slidably connected to the guide rail portion 701; wherein the sliding member 8 is movably connected to the second opening locking member 6; the sliding member 8 is bolted to the main bracket 7; and the bolt is suitable for passing through the sliding member 8 and engaging with the threaded hole 702 to fix the sliding member 8 on the threaded holes 702 at different positions.

[0096] The main bracket 7 is provided with a battery pack 9; the upper part of the main bracket 7 is rotatably connected to a folding handlebar 10; the folding handlebar 10 is provided with a wire-controlled switch 11; wherein the traction line of the wire-controlled switch 11 is suitable for passing through the main bracket 7, the crossbeam 5, the guide column 408 and then connected to the front pull rod 406; and the wire-controlled switch 11 is suitable for causing the traction line to pull the front pull rod 406 to rotate a certain angle when turned on, so as to pull the lock hook 402 through the rear pull rod 407 to cancel the limit of the clamping column 202 in any placement part 4011; wherein the battery pack 9 is provided, the effect of powering the hub motor is achieved.

[0097] The lower part of the main bracket 7 is rotatably connected to the wheel frame 12; a wheel hub 13 is provided on the wheel frame 12; a tire 14 is mounted on the wheel hub 13; the wheel frame 12 is connected to the folding handlebar 10; and the wheel frame 12 is adapted to rotate along with the folding handlebar 10 when the folding handlebar 10 rotates; a connecting seat 15 is bolted to the main bracket 7; a connecting sleeve 16 is provided on the connecting seat 15; a tension spring 17 is provided between the connecting sleeve 16 and the main bracket 7; an auxiliary wheel support frame 18 is slidably connected to the inner wall of the connecting sleeve 16; auxiliary wheels 19 are provided on both sides of the auxiliary wheel support frame 18; the bolt is adapted to penetrate the connecting seat 15 and engage with the threaded hole 702 , so as to fix the connecting seat 15 on the threaded holes 702 at different positions; the connecting sleeve 16 is provided with a through hole 1601; the auxiliary wheel support frame 18 is provided with at least two bolt holes 1801; wherein the through hole 1601 is concentrically arranged with any bolt hole 1801; by providing the tension spring 17, the wheel frame 12 is limited to prevent the wheel frame 12 from rotating; wherein by providing the connecting seat 15 on the threaded holes 702 at different heights, the height of the auxiliary wheel 19 from the ground is adjusted; wherein the through hole 1601 is concentrically arranged with any bolt hole 1801, thereby achieving the effect of adjusting the height of the auxiliary wheel 113 from the ground. Example 3

[0098] like Figures 1 to 7 As shown, this embodiment also provides a wheelchair, comprising:

[0099] The wheelchair body 20, the connecting mechanism for the electric drive front of the wheelchair and the front; wherein the wheelchair body 20 includes: a steel pipe support frame 2001; and the inner clamping block 301 and the outer clamping block 302 are suitable for being clamped on the steel pipe support frame 2001.

[0100] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0101] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0102] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0103] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A connecting mechanism for an electrically driven wheelchair head, characterized in that: include: A telescopic member (1) and a clamping member (2) sleeved on the middle portion of the telescopic member (1); Locking clamps (3) are provided on both sides of the telescopic member (1) and are movably connected to the telescopic member (1); The connector (4) is arranged below the card connector (2); wherein The connector (4) is suitable for being engaged with the clamping member (2) to facilitate disassembly of the clamping member (2); and The telescopic member (1) is suitable for adjusting the distance between the two locking clamps (3) during telescoping to adapt to wheelchair support frames with different distances.

2. The connecting mechanism for the electrically driven front end of a wheelchair according to claim 1, wherein: The telescopic member (1) comprises: an open sleeve (101), support rods (102) arranged on both sides of the open sleeve (101), and a first opening locking member (103) clamped at both ends of the open sleeve (101); wherein The two support rods (102) are slidably connected to the inner wall of the open sleeve (101); and The first opening locking member (103) is suitable for squeezing the opening sleeve (101) when locking, so that the opening sleeve (101) is in close contact with the support rod (102).

3. The connecting mechanism for the electrically driven wheelchair head as claimed in claim 2, characterized in that: An inner tooth portion (1011) is provided on the inner wall of the open sleeve (101); The surface of the support rod (102) is provided with an external tooth portion (1021); wherein The inner tooth portion (1011) meshes with the outer tooth portion (1021).

4. The connecting mechanism for the electrically driven front end of a wheelchair according to claim 3, wherein: The other ends of the two support rods (102) are provided with flat portions (1022); The locking clamp (3) comprises: an inner clamp (301) connected to the flat portion (1022), an outer clamp (302) in contact with the inner clamp (301), a first hammer nut (303) rotatably connected to the inner clamp (301), a second hammer nut (304) rotatably connected to the outer clamp (302), and at least one screw (305); wherein At least one first through portion (3011) is formed on the inner clamping block (301); At least one second through portion (3021) is formed on the outer clamping block (302); The first hammer nut (303) passes through the first through portion (3011) transversely; The second hammer nut (304) transversely passes through the second through portion (3021); The screw (305) is adapted to pass through the second hammer nut (304) in the second through portion (3021) and then engage with the first hammer nut (303) in the first through portion (3011), so that the outer clamping block (302) and the inner clamping block (301) clamp the support frame steel pipe.

5. The connecting mechanism for the electrically driven wheelchair head as claimed in claim 4, characterized in that: The clamping member (2) comprises: two triangular members (201) sleeved on the open sleeve (101) and at least two clamping posts (202) for connecting the two triangular members (201); The connector (4) comprises: a housing (401) provided with at least two placement portions (4011), a locking hook (402) hinged to the inner wall of the housing (401), a fixing column (403) arranged in the housing (401), a spring (404) connected to the fixing column (403) and the locking hook (402), a limiting pin (405) arranged in the housing (401), a front pull rod (406) hinged to the inner wall of the housing (401), a rear pull rod (407) hinged to the front pull rod (406) and the locking hook (402), and a guide column (408) arranged in the housing (401); wherein The clamping column (202) is suitable for being placed in any placement portion (4011) to squeeze the locking hook (402) and stretch the spring (404); and The spring (404) is adapted to rebound when not stretched, so as to drive the lock hook (402) to reset, thereby limiting the position of the clamping column (202) in any placement portion (4011).

6. The connecting mechanism for the electrically driven front end of a wheelchair according to claim 5, characterized in that: One end of the housing (401) is connected to a crossbeam (5); A second opening locking member (6) is sleeved on the outer side of the crossbeam (5); wherein The crossbeam (5) is adapted to slide within the second opening locking member (6); and The second opening locking member (6) is adapted to be in close contact with the crossbeam (5) when locked, so as to fix the crossbeam (5).

7. A vehicle head, characterized in that: include: A main bracket (7) and a connecting mechanism for an electrically driven wheelchair head as claimed in any one of claims 1 to 6; wherein The main bracket (7) is provided with a guide rail portion (701) and a plurality of threaded holes (702) arranged at equal intervals; The sliding member (8) is slidably connected to the guide rail portion (701); wherein The sliding member (8) is movably connected to the second opening locking member (6); The sliding member (8) is bolted to the main bracket (7); and The bolt is suitable for penetrating the sliding member (8) and then engaging with the threaded hole (702) to fix the sliding member (8) on the threaded holes (702) at different positions.

8. The vehicle head according to claim 7, wherein: A battery pack (9) is provided on the main bracket (7); The upper portion of the main bracket (7) is rotatably connected to a folding handlebar (10); The folding handlebar (10) is provided with a wire-controlled switch (11); wherein The traction line of the wire-controlled switch (11) is suitable for passing through the main bracket (7), the crossbeam (5), the guide column (408) and then connected to the front pull rod (406); and The wire-controlled switch (11) is adapted to cause the traction wire to pull the front pull rod (406) to rotate to a certain angle when turned on, so as to pull the lock hook (402) through the rear pull rod (407) to cancel the position restriction of the clamping column (202) in any placement portion (4011).

9. The vehicle head according to claim 7, wherein: A wheel frame (12) rotatably connected to the lower portion of the main support (7); The wheel frame (12) is provided with a wheel hub (13); The wheel hub (13) is provided with a tire (14); The wheel frame (12) is connected to the folding handlebar (10); and The wheel frame (12) is adapted to rotate along with the folding handlebar (10) when the handlebar (10) rotates; The main bracket (7) is bolted with a connecting seat (15); The connecting seat (15) is provided with a connecting sleeve (16); A tension spring (17) is provided between the connecting sleeve (16) and the main bracket (7); The inner wall of the connecting sleeve (16) is slidably connected to an auxiliary wheel support frame (18); Auxiliary wheels (19) are provided on both sides of the auxiliary wheel support frame (18); The bolt is adapted to penetrate the connecting seat (15) and engage with the threaded hole (702) to fix the connecting seat (15) to the threaded holes (702) at different positions; The connecting sleeve (16) is provided with a through hole (1601); The auxiliary wheel support frame (18) is provided with at least two bolt holes (1801); wherein The through hole (1601) is arranged concentrically with any bolt hole (1801).

10. A wheelchair, characterized in that: include: A wheelchair body (20), a connecting mechanism for an electrically driven wheelchair head as claimed in any one of claims 1 to 6, and a head as claimed in any one of claims 7 to 9; in The wheelchair body (20) comprises: a steel pipe support frame (2001); as well as The inner clamping block (301) and the outer clamping block (302) are suitable for being clamped on the steel pipe support frame (2001).

Images