Locomotive backrest chair

Abstract

A locomotive backrest chair comprises a backrest chair body, a chair locking piece and an angle adjusting piece which is connected with the backrest chair body and the chair locking piece and used for adjusting the angle of the backrest. The back-rest chair main body consists of a back-rest chair framework and a supporting cushion coated on the back-rest chair framework, and the back-rest chair framework comprises a chair back bracket formed by metal pipe fittings, a chair framework base and two parallel hinges for connecting the chair back bracket and the chair framework base; wherein the chair locking piece comprises a locking beam, a chair locking piece and a beam locking piece and is used for fixing the backrest chair on the locomotive. The angle adjusting piece comprises a rotating shaft fixing piece, a rotating shaft, a supporting rod and a rod locking piece and is used for adjusting and locking the angle of the chair back.

Description

Technical Field

[0001] The present invention relates to the technical field of motorcycles and electric vehicles, in particular to a motorcycle backrest chair used for electric vehicles or motorcycles. Background Art

[0002] Electric vehicles or motorcycles are common means of transportation for residents, and have also become important tools for intra-city logistics or takeout in modern life. At present, the number of intra-city logistics and takeout riders has reached tens of millions. The riders are very hard-working, and even work more than 12 hours a day. It can be said that they regard their cars as their homes. Therefore, I invented a motorcycle backrest chair (patent number 2024305656806), which can be quickly connected to the rear seat bracket of electric vehicles and motorcycles, so that riders can use it as a backrest chair while riding, lie down temporarily to rest while waiting for orders, or put it on the ground to rest. In this invention, the angle of the chair back is adjusted only by the angle adjustment joint, but there is a problem that when the chair back is adjusted to a large angle (i.e., lying down), the angle adjustment joint is subjected to too much force and is easily damaged. In this invention, the force is transferred to the locking beam through the angle adjustment member, which is more secure. Summary of the Invention

[0003] To address the aforementioned issues currently faced by riders in both work and rest, the present invention provides a motorcycle reclining chair that can be quickly and easily installed and removed from a motorcycle. By conveniently adjusting the backrest angle, the rider can obtain varying degrees of rest. To achieve these objectives, a motorcycle reclining chair is provided, comprising a reclining chair body, a chair locking member, and an angle adjustment member connecting the two for adjusting the backrest angle.

[0004] Furthermore, the backrest chair body is composed of a backrest chair frame and a support pad covering it. The backrest chair frame includes a chair back support composed of a C-shaped pipe, which is connected to two parallel hinges in its extension direction, and the other end of the hinge is connected to the chair frame base.

[0005] Furthermore, the chair locking member includes a locking beam, a chair locking member and a locking beam member, wherein the locking beam is a long metal profile, which is fixed across the rear frame of the locomotive by the locking beam member and is used in conjunction with the chair locking member to lock the chair frame base.

[0006] Furthermore, the angle adjustment member includes a rotating shaft fixing member, a rotating shaft, a supporting rod and a rod locking member. The rotating shaft fixing member is connected to the chair back bracket, which is connected to the supporting rod through the rotating shaft. The supporting rod is locked by the rod locking member connected to the end face of the locking beam, and the rod locking member positions and locks the supporting rod through the notch, hole or pit on the supporting rod.

[0007] Preferably, the support rod in the angle adjustment member is in the shape of a thin plate, on which L-shaped notches are arranged at substantially equal intervals, and the rod locking member matched therewith is a stepped screw fixed to the end face of the locking beam.

[0008] Preferably, the supporting rod in the angle adjustment member is a polygonal long rod, on which holes or pits are arranged at basically equal intervals. The rod locking member cooperating therewith includes a locking turntable rotatably connected to the end face of the locking beam, and a knob plunger fixed on the locking turntable, and the pin on the knob plunger cooperates with the hole or pit on the supporting rod.

[0009] Preferably, the angle adjustment members are symmetrically arranged at both ends of the motorcycle backrest seat, and the two are connected by a rod connecting member.

[0010] Preferably, the shaft fixing member is in the shape of a pipe hoop, and its locking screw also serves as the shaft.

[0011] Preferably, the chair lock comprises a latch type, a cover type or an axis fixed seat type lock.

[0012] Preferably, the locking beam comprises a pipe clamp, a U-shaped sheet metal, or a clamping plate to lock the locking beam to the motorcycle's rear tail frame. Furthermore, the chair back support is formed of a C-shaped pipe, and the chair frame base has multiple sleeves along its extension direction. The multiple sleeves can be locked in position by marbles or locking caps.

[0013] Preferably, when the chair back support is a multi-tube support, the support pad is split, including a bottom fixed support pad and an upper movable support pad, the bottom fixed support pad is fixed to the tube at the lower part of the chair back support, the upper part of the upper movable support pad is fixedly connected to the upper part of the chair back support, and the side is movably connected to the tube around the upper part via an elastic band or a band with a lock. In summary, the present invention has the following beneficial effects: 1. The present invention is easy to adjust to a comfortable angle and is very practical. 2. The present invention is easy to use and quick to install and disassemble; 3. The present invention has a simple structure, low cost, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] FIG1 is a perspective view of a first example of a motorcycle reclining chair according to the present invention;

[0016] FIG2 is a second perspective view of a first example of a motorcycle reclining chair according to the present invention;

[0017] FIG3 is a perspective view of a chair locking member according to Example 1 of the present invention;

[0018] FIG4 is a perspective view of a second example of a motorcycle reclining chair according to the present invention;

[0019] 5 is a partial cross-sectional view of a rod locking member of Example 2 of the present invention;

[0020] 6 is a perspective view of a chair locking member according to Example 2 of the present invention;

[0021] 7 is a perspective view of a second chair locking member of the present invention installed on a locomotive;

[0022] FIG8 is a perspective view of another chair locking member of the present invention;

[0023] FIG9 is a perspective view of another chair locking member of the present invention;

[0024] FIG. 10 is a perspective view of yet another chair locking member according to the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] A first embodiment of a motorcycle backrest chair, as shown in FIG1 , comprises a backrest frame and a support pad 14 covering the backrest. The backrest frame comprises a backrest bracket 11 formed of a C-shaped tube, a frame base 13, and a hinge 12 connecting the two, wherein the connection method utilizes a pin 15. The hinge 12 comprises an upper hinge 121 connected to the backrest bracket 11, a lower hinge 123 connected to the frame base 13, and a hinge shaft 122 connecting the two. The backrest bracket 11 comprises an upper slide 111 formed of a C-shaped metal tube, a lower sleeve-mounted slide 112 that fits therewith, and a ball 113 that secures the relative position of the two. The lower slide 112 is connected to the upper hinge 121. The frame base 13 comprises a rear slide 131 formed of a C-shaped metal tube, a front sleeve-mounted slide 132 that fits therewith, and a ball 133 that secures the relative position of the two. The front slide 132 is connected to the lower hinge 123. The marble is a common sleeve positioning part, including a marble head that can pass through the sleeve hole and a spring or torsion spring connected to the rear end of the marble head. The chair back support 11 and the chair frame base 13 are generally C-shaped. It is preferred to adopt the sleeve method of this example in the extension direction, because the position between the sleeves (slide rods) can be adjusted, and the backrest chair can be adjusted to a comfortable position. The chair frame base 13 of the backrest chair frame is locked by the chair locking part 2, and the chair locking part 2 is connected to the rear tail frame 800 of the locomotive, thereby fixing the entire backrest chair frame. As shown in Figure 3, the chair locking part 2 includes a locking beam 21, a chair locking part 22 and a locking beam part 23. The locking beam 21 includes a long metal profile 211 and end faces 212 at both ends. The rear end of the rear slide rod 131 can be inserted into the groove inside the profile 211, and the chair locking part 22 adopts a latch type locking. The latch-type locking chair lock component 22 includes a handle 221 and a latch 222. The latch 222 passes through the holes on the locking beam 21 and the rear slide 131, thereby locking the locomotive backrest seat to the locking beam 21. The two locking beam components 23 (similar to pipe clamps) below the locking beam 21 are clamped on the pipes 801 on both sides of the locomotive rear tail frame 800, thereby locking the locking beam 21 across the locomotive rear tail frame. As shown in Figure 1, the angle adjustment components 3 are symmetrically arranged on both sides of the backrest seat and connected in the middle by a rod connecting component 7 to facilitate the simultaneous adjustment of the two angle adjustment components 3. The angle adjustment component 3 includes a rotating shaft fixing component 31, a rotating shaft 32, a support rod 33 and a rod locking component 34. The rotating shaft fixing component 31, which is similar to a "pipe clamp", is clamped on the sliding rod 112 below the chair back bracket 11, and the locking bolt for locking the rotating shaft fixing component 31 also serves as the rotating shaft 32 of the support rod 33. The support rod 33 is a thin, bent plate (for added strength). Multiple L-shaped notches 331 are evenly distributed on one side of the support rod 33. These notches engage the rod locking members 34, locking the support rod 33 in place. The rod locking members 34 are stepped screws installed on the end faces of the locking beam 2. The vertical end faces facilitate the installation of the stepped screws and rod locking members. The L-shaped notches in the support rod 33 prevent the support rod 33 from slipping out of the rod locking members 34.As shown in Figure 2, since the upper and lower slide bars 111 and 112 can slide together, the support pad 14 is preferably a split type, comprising an upper movable support pad 141 and a lower fixed support pad 142. The lower fixed support pad 142 is fixedly secured to the lower slide bar 112, while the upper movable support pad 141 comprises a seat fabric 1411, an upper strap 1413 connected thereto, and side straps 1412. The upper strap 1413 is fixedly secured to the upper portion of the upper slide bar 111, while the side straps 1412 are elastic straps or have locking buckles attached to their rear ends to facilitate adjustment when the upper slide bar is movable.

[0027] A second embodiment of a motorcycle backrest chair, as shown in FIG4 , the main body of the motorcycle backrest chair includes: a backrest chair frame and a support pad 14 covering the backrest, wherein the backrest chair frame includes a chair back support 11, a chair frame base 13 and a hinge 12 connecting the two, and the connection method adopts a pin 15. The chair frame base 13 is locked by the chair locking member 2, and the locking method is the same as that of the first embodiment. The chair frame base 13 includes a rear slide bar 131, a front slide bar 132 (the pipe mouth is provided with a thread), and the two are locked by tightening the locking cover 134. The angle adjustment member 3 in this embodiment includes a rotating shaft fixing member 31, a rotating shaft 32, a support rod 35 and a rod locking member 36. The support rod 35 here is in the shape of a square rod, on which a plurality of holes 351 are evenly distributed.

[0028] As shown in Figures 5 and 6, the rod locking member 36 includes a locking turntable 361 that is rotatably connected to the locking beam 21 of the chair locking member 2 at both ends. The locking turntable 361 is fixed to the shaft with a retaining ring 363. A knob plunger 362 is connected to the locking turntable 361, and the support rod 35 passes through the square hole of the locking turntable 361 and can slide in the square hole. When in the appropriate position, the pin on the knob plunger 362 can be inserted into the hole 351 on the support rod 35. The knob plunger 362 can be adjusted up and down by pulling the handle on the top of the knob plunger 362, thereby locking or releasing the support rod 35. The knob plunger is a standard part on the market. Its outer shell is threaded for easy installation, and it has an internal spring for easy reset. It has a latch for locking and an easy-to-operate handle. It is generally used to lock the position.

[0029] As shown in Figures 6 and 7, the chair locking member 2 includes a locking beam 21, a chair locking member 22, and a locking beam member 23. The chair locking member 22 is the same as in Example 1, and the locking beam member 23 is here made of a U-shaped sheet metal 231 and a bolt assembly 232. The U-shaped sheet metal 231 is clamped to the crossbeam 802 of the rear tail frame 800 of the locomotive, thereby fixing the locking beam 21.

[0030] FIG8 is a perspective view of another chair locking member according to the present invention. The locking beam member 23 in this example is similar to that in Example 1 and is secured to the side tube 801 of the locomotive's rear tail frame 800 via a locking beam member 23 similar to a "pipe clamp." The difference is that the chair locking member 22 in this example utilizes a pressure-type locking mechanism. The locking chair member 22 includes a pin 223, a pressure cap 224, a locking handle 225, a sliding shaft 226, and a locking beam slot 227. The chair frame base 13 of the reclining chair comprises two tube rear slides 131. The rear slides 131 are pressed against the arcuate groove of the locking beam 21 by the pressure cap 224. The pressure cap 224 is rotatably connected to the locking beam 21 via the pin 223. The locking handle 225 slides in the locking beam slot 227 via the sliding shaft 226. The front end of the locking handle 225 is an eccentric cam structure, which in turn locks the pressure cap 224. Here, the two rear slide bars 131 of the chair frame base 13 and the chair locking member 2 constitute a fixed support and force-bearing structure of the backrest frame, that is, the chair frame base 13 can be completely two tubes or sleeves.

[0031] Figure 9 is a three-dimensional diagram of another chair locking component of the present invention. The chair locking component 22 in this example adopts another pressure-cover type locking rear slide bar 131. The chair locking component 22 includes a pressure cover 227 and a tightening screw 228. The rear end of the pressure cover 227 has a cone and adopts a petal structure. When the tightening screw 228 is tightened, the petals will be squeezed by the conical holes on the locking beam 21, thereby tightening the rear slide bar 131 (and then locking the backrest chair frame), which is similar to the principle of locking the drill bit of a drilling machine.

[0032] Figure 10 is a perspective view of yet another chair locking device according to the present invention. In this example, the chair locking device 22 utilizes an axle fixing seat to lock the backrest frame. The locking beam 21 is screwed to the locomotive rear frame 800 by the locking beam member 23 (clamping plate). The locking rod locking member 36 is screwed to the locking beam 21 via a rod locking member fixing member. The locking beam 21 is bolted to the chair locking device 22 (axle fixing seat). The chair locking device 22 (axle fixing seat is a mature component) can be locked to the rear slide bar 131 via its set screws, thereby locking the backrest frame.

[0033] Obviously, the embodiments described above are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments that can be derived by persons of ordinary skill in the art without inventive effort are possible. For example, the pipe fittings in the examples can be pipes of various shapes, including square and rectangular pipes; the chair lock components in the examples illustrate several configurations, but other similar configurations are not excluded. The technical features of the embodiments described above can be combined in any manner. To simplify the description, non-critical connection methods are not described in detail, and not all possible combinations of the technical features in the embodiments are described. However, as long as these combinations of technical features do not conflict, they should be considered to be within the scope of this specification. In addition, any reference numerals in the claims should not be construed as limiting the claims. The verb "comprise" and its variations do not exclude the presence of elements or steps other than those stated in the claims. The indefinite article "a" or "an" before an element or step does not exclude the presence of multiple such elements or steps. It should be noted that the embodiments described above are merely illustrative and not limiting of the present invention. Based on the embodiments of the present invention, all other embodiments that can be derived by persons of ordinary skill in the art without inventive effort are within the scope of protection of the present invention. It is understood that modifications and variations may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and variations are considered to be within the scope of the present invention and the appended claims. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A motorcycle backrest chair, characterized in that: It includes a backrest chair body and a chair locking part, as well as an angle adjustment part connecting the two for adjusting the chair back angle: The backrest chair body is composed of a backrest chair frame and a support cushion covering the backrest chair frame, wherein the backrest chair frame includes a chair back support composed of a C-shaped pipe, which is connected to two parallel hinges in its extension direction, and the other end of the hinge is connected to the chair frame base; The chair locking member includes a locking beam, a chair locking member and a locking beam member. The locking beam is a long metal profile, which is fixed to the rear tail frame of the motorcycle across by the locking beam member and is used in conjunction with the chair locking member to lock the chair frame base. The angle adjustment member includes a rotating shaft fixing member, a rotating shaft, a supporting rod and a rod locking member. The rotating shaft fixing member is connected to the chair back bracket. A rotating shaft is fixed on the rotating shaft fixing member, and a supporting rod is connected to the rotating shaft. The supporting rod is locked by the rod locking member connected to the two ends of the locking beam. The rod locking member positions and locks the supporting rod through the notch, hole or pit on the supporting rod.

2. The motorcycle backrest chair according to claim 1, characterized in that: The angle adjustment member, wherein the support rod is in the shape of a thin plate, is provided with L-shaped notches arranged at basically equal intervals, and the rod locking member matched therewith is a stepped screw fixed to the end face of the locking beam.

3. The motorcycle backrest chair according to claim 1, characterized in that: The angle adjustment member, wherein the support rod is a polygonal long rod, on which holes or pits are arranged at basically equal intervals, and the rod locking member cooperating therewith includes a locking turntable rotatably connected to the end face of the locking beam, and a knob plunger fixed on the locking turntable, and the pin on the knob plunger can be inserted into the hole or pit on the support rod.

4. The motorcycle backrest chair according to claim 1, characterized in that: The angle adjustment parts are symmetrically arranged at both ends of the motorcycle backrest seat, and the two are connected by a rod connecting part.

5. The motorcycle backrest chair according to claim 1, characterized in that: The rotating shaft fixing member is in the shape of a pipe hoop, and its locking screw also serves as the rotating shaft.

6. The motorcycle backrest chair according to claim 1, characterized in that: The chair lock includes a latch type, a cover type or an axis fixed seat type lock.

7. The motorcycle backrest chair according to claim 1, characterized in that: The locking beam member includes a pipe clamp, a U-shaped sheet metal, or a splint.

8. The motorcycle backrest chair according to claim 1, characterized in that: The chair back support and chair frame base formed by the C-shaped pipe are multiple sleeves in their extension direction, and the multiple sleeves can be locked in position between the sleeves by marbles or locking covers.

9. The motorcycle backrest chair according to claim 1, characterized in that: When the chair back support is a multiple-sleeve support, the support pad is split, including a bottom fixed support pad and an upper movable support pad. The bottom fixed support pad is fixed to the sleeve at the lower part of the chair back support, and the upper part of the upper movable support pad is fixedly connected to the upper part of the chair back support, and the side is movably connected by an elastic band or a band with a lock around the upper sleeve.

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