Integrated high-load rear seat frame

Abstract

The utility model relates to the technical field of high-load rear seat frames, solves the technical problem of insufficient supporting strength, and particularly relates to an integrated high-load rear seat frame which comprises a sleeve seat serving as a supporting foundation, and a buffer supporting mechanism used for improving the supporting strength of a rear seat is arranged on the sleeve seat. A cushion extending mechanism used for increasing the supporting area of the rear seat is arranged on the buffering supporting mechanism, the buffering supporting mechanism comprises a front supporting plate arranged on one side of the sleeve seat, and a rear supporting plate is arranged on one side of the front supporting plate. Due to the arrangement of the buffering and supporting mechanism, the supporting strength of the rear seat can be improved, the pressure of the rear seat can be changed from a vertical state to an inclined state, and therefore when the rear seat encounters the strength which cannot be supported, the stress disc is bent and deformed, the situation that rear wheels of a bicycle deform is avoided, and the safety of the bicycle is improved. Therefore, the running of the bicycle is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high load rear seat frame technical field especially relates to a kind of integrated high load rear seat frame. BACKGROUND

[0002] Bicycle rear seat, usually refers to the component installed in the rear end of bicycle frame, for carrying passengers or goods. This design makes bicycle not only a kind of personal transport, but also can meet the needs of multiple travel or carrying goods to some extent. But one of the existing rear seat frame, in use, its support is directly fixed on the outside of rear wheel axle by two steel bars to realize support, this design makes the support intensity of rear seat limited, when carrying heavy objects, it will make the wheel bend. SUMMARY

[0003] In view of the deficiencies of prior art, the utility model provides a kind of integrated high load rear seat frame, solve the technical problem of insufficient support intensity, to prevent the purpose that the rear wheel appears bending.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a kind of integrated high load rear seat frame, including the sleeve seat as the support base, the sleeve seat is provided with the buffer support mechanism for improving the support intensity of rear seat, the buffer support mechanism is provided with the cushion extension mechanism for increasing the support area of rear seat;

[0005] The buffer support mechanism includes front support plate arranged on one side of the sleeve seat, rear support plate is arranged on one side of the front support plate, two buffer inclined slide rails are connected between the front support plate and the rear support plate, guide slide rods are fixedly connected to the inner side of the buffer inclined slide rails, link sliding frames are slidably connected to the outer side of the guide slide rods, buffer springs are connected between the link sliding frames and the inner walls of the buffer inclined slide rails, push rods are slidably connected to the front support plate, one end of the push rod is connected to the link sliding frame, a force disc is fixedly connected to the other end of the push rod, a butt joint rotary lever seat is fixedly connected to the end of the front support plate close to the sleeve seat, and a support fork is rotatably connected to one end of the butt joint rotary lever seat.

[0006] Preferably, the bottom end of the support fork is connected to the wheel shaft of the external wheel, and the top end of the support fork is fixedly connected to one side of the sleeve seat.

[0007] Preferably, the cushion extension mechanism includes a seat frame arranged at the top end of the front support plate and the rear support plate, two symmetrical hidden grooves are formed in the end of the seat frame away from the sleeve seat, and extension guide rods are fixedly connected to the inner side of the hidden grooves.

[0008] Preferably, stable sliding blocks are sleeved on the outer side of the extension guide rods, and the ends of the two stable sliding blocks away from the sleeve seat are connected to an extension seat frame through a support.

[0009] Preferably, the seat frame bottom end is provided with a stable sliding groove on both sides, an extension support sliding rod is slidably connected to the inner side of the stable sliding groove, limit clamping blocks are slidably connected to the top end and the bottom end of the extension support sliding rod close to the inner wall of the stable sliding groove, and a caliper spring is connected between the limit clamping block and the extension support sliding rod.

[0010] Preferably, the stable sliding groove is provided with a limit clamping groove close to the top end and the bottom end of the inner side of the extension seat frame.

[0011] By the above technical scheme, the integrated high-load rear seat frame has at least the following beneficial effects:

[0012] 1. The setting of the buffer support mechanism can improve the support strength of the rear seat, can change the pressure of the rear seat from a vertical state to an inclined state, so that the force disc is bent and deformed when the rear seat encounters an un-supportable force, thereby avoiding the deformation of the rear wheel of the bicycle, and the operation of the bicycle is not affected.

[0013] 2. The setting of the cushion extension mechanism can extend the length and support area of the rear seat, can cope with different lifting objects, so that the objects that can be adapted by the rear seat are more extensive, and the practicality of the rear seat is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0015] In the drawings:

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a force disc installation structure schematic view of the utility model;

[0018] Figure 3 It is a push sliding rod installation structure schematic view of the utility model;

[0019] Figure 4 It is an A place enlarged structure schematic view of the utility model Figure 3 ;

[0020] Figure 5 It is an extension seat frame installation structure schematic view of the utility model;

[0021] Figure 6 It is an A place enlarged structure schematic view of the utility model Figure 5Amplification structure schematic view at B of figure 1

[0022] Figure 7 Figure 1 is a schematic view of the extension guide rod mounting structure of the utility model.

[0023] Figure 1: 1, sleeve seat;

[0024] 2, buffer support mechanism; 201, front support plate; 202, rear support plate; 203, buffer inclined slide rail; 204, guide slide rod; 205, buffer spring; 206, link sliding frame; 207, push slide rod; 208, force disc; 209, butt joint rotary lever seat; 210, support fork frame;

[0025] 3, cushion extension mechanism; 301, seat frame; 302, hidden groove; 303, extension guide rod; 304, stable sliding block; 305, extension seat frame; 306, stable sliding groove; 307, extension support slide rod; 308, caliper spring; 309, limit block; 310, limit slot. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] One of the existing rear seat frames, when in use, is directly supported by two steel bars fixed outside the rear wheel shaft to achieve support. This design limits the support of the rear seat, and when carrying heavy objects, the wheels will bend. Please refer to Figures 1-7 The utility model provides a kind of integrated high load rear seat frame for the embodiment, solve the technical problem of insufficient support, the device includes as support base's sleeve seat 1, sleeve seat 1 is provided with the buffer support mechanism 2 for improving the support of rear seat, buffer support mechanism 2 is provided with the cushion extension mechanism 3 for increasing the support area of rear seat. The support object is supported by cushion extension mechanism 3, and the pressure caused by the supported object on the rear seat is relieved by buffer support mechanism 2.

[0029] In order to improve the support force of the back seat, the buffer support mechanism 2 comprises a front support plate 201 arranged on one side of the seat 1, a rear support plate 202 arranged on one side of the front support plate 201, two buffer inclined slide rails 203 connected between the front support plate 201 and the rear support plate 202, a guide slide rod 204 fixedly connected to the inner side of the buffer inclined slide rail 203, a connecting sliding frame 206 slidably connected to the outer side of the guide slide rod 204 through a sliding block, a buffer spring 205 connected between the connecting sliding frame 206 and the inner wall of the buffer inclined slide rail 203, a pushing slide rod 207 slidably connected to the front support plate 201, one end of the pushing slide rod 207 connected to the connecting sliding frame 206, the other end of the pushing slide rod 207 fixedly connected to a force receiving disc 208, the front support plate 201 fixedly connected to a butt joint rotary rod seat 209 at one end close to the seat 1, the butt joint rotary rod seat 209 rotatably connected to a support fork 210 at one end, the support fork 210 connected to the wheel shaft of an external wheel at the bottom end, and the support fork 210 fixedly connected to one side of the seat 1 at the top end.

[0030] After the supporting object sits on the cushion extension mechanism 3, the pressure is transmitted to the front support plate 201 and the rear support plate 202, at which time the butt joint rotary rod seat 209 rotates relative to the support fork 210, and the force receiving disc 208 pushes the pushing slide rod 207 connected thereto to slide during rotation, and the pushing slide rod 207 pushes the connecting sliding frame 206 connected thereto to move, and the connecting sliding frame 206 slides inside the buffer inclined slide rail 203, and the guide slide rod 204 inside the buffer inclined slide rail 203 and the buffer spring 205 outside the guide slide rod 204 can provide buffering and guiding for the sliding of the connecting sliding frame 206, so that when the back seat encounters a force that cannot be supported, the force receiving disc 208 will bend relative to the pushing slide rod 207, thereby bending the entire cushion extension mechanism 3, causing the riding object to slide off, so as not to affect the rear wheel of the bicycle, and allowing the bicycle to run after the back seat is damaged.

[0031] Embodiment 2

[0032] On the basis of embodiment 1, embodiment 1 solves the technical problem of insufficient support force, but there is still a problem of narrow support surface. In combination with Figures 1-7 As shown in the specific implementation process is as follows: in order to make the support area of the back seat more extensive. The cushion extension mechanism 3 comprises a seat frame 301 arranged at the top end of the front support plate 201 and the rear support plate 202, two symmetrical hidden grooves 302 are formed at one end of the seat frame 301 away from the seat 1, an extension guide rod 303 is fixedly connected to the inner side of the hidden groove 302, a stable sliding block 304 is sleeved on the outer side of the extension guide rod 303, and the two stable sliding blocks 304 are connected by a support to form an extension seat 305 away from the seat 1.

[0033] In order to limit the adjustment of the back seat, the stable sliding groove 306 is arranged at the bottom end of the seat frame 301, and the extension support slide rod 307 is slidably connected to the inner side of the stable sliding groove 306, the limit block 309 is slidably connected to the top end and the bottom end of the extension support slide rod 307 close to the inner wall of the stable sliding groove 306, the clamping spring 308 is connected between the limit block 309 and the extension support slide rod 307, and the limit slot 310 that is embedded with the limit block 309 is arranged at the top end and the bottom end of the stable sliding groove 306 close to the inner side of the extension seat frame 305.

[0034] After the cushion extension mechanism 3 encounters a heavy object, the operator can adjust the support area of the entire back seat by pulling the extension seat frame 305, at which time the extension seat frame 305 drives the extension support slide rod 307 and the stable sliding block 304 connected thereto to slide, during which the limit block 309 at the top end and the bottom end of the extension support slide rod 307 is clamped in the limit slot 310 arranged at the top end and the bottom end of the stable sliding groove 306 during the pulling of the extension seat frame 305, thereby limiting the extension seat frame 305, and during which the stable sliding block 304 slides in the hidden groove 302 arranged at the top end of the seat frame 301, which can compensate for the excessive gap caused by the pulling of the extension seat frame 305.

[0035] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An integrated high load backrest comprising a seat shell (1) as a support base, characterized in that: The seat (1) is provided with a buffer support mechanism (2) for improving the support force of the back seat, and the buffer support mechanism (2) is provided with a cushion extension mechanism (3) for increasing the support area of the back seat. The buffer support mechanism (2) comprises a front support plate (201) arranged on one side of the seat (1), a rear support plate (202) arranged on one side of the front support plate (201), two buffer inclined slide rails (203) connected between the front support plate (201) and the rear support plate (202), a guide slide rod (204) fixedly connected to the inner side of the buffer inclined slide rail (203), a connecting sliding frame (206) slidingly connected to the outer side of the guide slide rod (204) through a sliding block, a buffer spring (205) connected between the connecting sliding frame (206) and the inner wall of the buffer inclined slide rail (203), a pushing slide rod (207) slidingly connected to the front support plate (201), one end of the pushing slide rod (207) connected to the connecting sliding frame (206), and the other end of the pushing slide rod (207) fixedly connected to a stress disc (208).

2. An integrated high load backrest according to claim 1, characterized in that: The support fork (210) is connected to the wheel shaft of an external wheel at the bottom end, and is fixedly connected to one side of the seat (1) at the top end.

3. An integrated high load backrest according to claim 1, characterized in that: The cushion extension mechanism (3) comprises a seat frame (301) arranged at the top end of the front support plate (201) and the rear support plate (202), two symmetrical hidden grooves (302) opened at the end of the seat frame (301) away from the seat (1), and an extension guide rod (303) fixedly connected to the inner side of the hidden groove (302).

4. An integrated high load backrest according to claim 3, characterized in that: A stable sliding block (304) is sleeved on the outer side of the extension guide rod (303), and two stable sliding blocks (304) are connected to an extension seat frame (305) through a support at the end away from the seat (1).

5. An integrated high load backrest according to claim 1, characterized in that: Stable sliding grooves (306) are opened at the bottom end of the seat frame (301) on both sides, and an extension support slide rod (307) is slidingly connected to the inner side of the stable sliding groove (306).

6. An integrated high load backrest according to claim 5, characterized in that: Limiting grooves (310) matching the limiting clamping blocks (309) are opened at the inner side of the extension seat frame (305) at the top end and the bottom end.

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