Folding device for small saddle of electric bicycle

Abstract

The utility model relates to a folding device for a small saddle of an electric bicycle, which comprises a seat cushion and a seat cushion support detachably and fixedly connected with the seat cushion, and the seat cushion support is mounted on a rear seat of the electric bicycle. The seat cushion comprises a seat cushion body, a movable connecting mechanism and two seat cushion folding plates, the two seat cushion folding plates are rotationally connected to the two sides of the seat cushion body through the movable connecting mechanism respectively, and switching of the seat cushion between a fixed state of unfolding for storage and a fixed state of folding for sitting is achieved. According to the foldable saddle, the seat cushion can be rapidly switched between the unfolded object placing state and the folded person sitting state, the problem that a traditional saddle is single in function is solved, and meanwhile the space utilization rate and the convenience of carrying objects are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle technical field especially is involved in a kind of folding device of electric bicycle small saddle. BACKGROUND

[0002] At present, electric bicycle has become one of important tools for people's daily travel with its advantages of convenience, efficiency, environmental protection and the like. In the scenes of urban commuting, short-distance shopping and the like, the figure of electric bicycle can be seen everywhere. However, the saddle has obvious limitations in functional design.

[0003] In daily use, cyclists often need to carry small items, such as daily necessities, express packages, shopping bags and the like. Since the traditional electric bicycle lacks a dedicated storage space, users often can only place the items on the basket or rear rack. However, the basket has limited capacity and is open to design, which easily leads to the falling of items; the rear rack has strong load-bearing capacity, but it is not convenient to take and place items, especially for small items, the fixing effect is poor. Some users even have to ride with the items in hand, which not only affects the control stability, but also has safety hazards.

[0004] In addition, the structural design of the existing saddle also has optimization space. For single-riding scenes, the overall size of the traditional saddle is large, which cannot be flexibly adjusted when not carrying people, causing space waste.

[0005] Although there are some foldable saddle designs on the market, their functions are still limited to simple adjustment of the angle of the seat cushion, which does not fundamentally solve the problems of single function of the saddle and unreasonable space utilization, cannot realize the function conversion of the seat cushion and the storage rack, lacks safe and reliable locking structure, and is difficult to meet the diversified use requirements of users. SUMMARY

[0006] In view of the deficiencies of the prior art, the utility model aims to provide a folding device of electric bicycle small saddle, which realizes the quick switching of the seat cushion between the unfolded storage state and the folded sitting state, solves the problem of single function of the traditional saddle, and significantly improves the space utilization and the convenience of carrying items.

[0007] The above utility model of the utility model is realized by the following technical solutions:

[0008] The utility model provides a folding device of electric bicycle small saddle, including seat pad and with detachable fixed connection of seat pad support, seat pad support installs on electric bicycle rear seat, seat pad includes seat pad body, movable connecting mechanism and two seat pad folding plates, two seat pad folding plates are rotatably connected on the both sides of seat pad body through movable connecting mechanism respectively, realize the switching of seat pad between the fixed state of unfolding and the fixed state of folding.

[0009] Through the above technical scheme, the function diversification of electric bicycle saddle is realized, the quick conversion between the function of the storage rack and the seat pad is realized, and the space utilization and the use convenience are improved.

[0010] As a further technical scheme of the utility model: the seat pad support includes an integrally formed top plate and a vertical plate, the top plate is embedded into the bottom of the seat pad body and fixedly connected thereto, and the vertical plate is detachably fixedly connected to the tail end of the electric bicycle rear seat.

[0011] Through the above technical scheme, the integrally formed top plate and vertical plate make the seat pad support structure more stable, can effectively bear the weight of the seat pad and the user, the top plate is embedded into the bottom of the seat pad body and fixedly connected, thereby enhancing the stability and reliability of the connection between the seat pad and the seat pad support, and the vertical plate is detachably fixedly connected to the tail end of the electric bicycle rear seat, facilitating the installation and disassembly of the seat pad support, and also facilitating the maintenance and repair of the electric bicycle rear seat.

[0012] As a further technical scheme of the utility model: the movable connecting mechanism includes a hinge, two sets of buckle connecting parts and a connecting support part, the two seat pad folding plates are rotatably connected to the both sides of the seat pad body through the hinge respectively, the buckle connecting parts are arranged at the bottom of the seat pad for locking the two seat pad folding plates at the bottom of the seat pad body after folding, and the connecting support part is arranged at the bottom of the seat pad for locking the two seat pad folding plates on the same horizontal plane on the both sides of the seat pad body after unfolding.

[0013] Through the above technical scheme, the hinge realizes the flexible rotation of the seat pad folding plate, ensures that the seat pad can be smoothly switched between the unfolded state and the folded state, the two sets of buckle connecting parts lock the two seat pad folding plates respectively in the folded state, prevent accidental unfolding, and ensure the stability and safety of the saddle structure in the sitting state, and the connecting support part locks the seat pad folding plate in the unfolded state, so that the seat pad folding plate and the seat pad body are kept on the same horizontal plane, providing a stable and flat platform for storage, and enhancing the reliability of the storage function.

[0014] As a further technical scheme of the utility model: the hinge includes two telescopic lock rods, two first lock hole groups and two second lock hole groups; two first lock hole groups are respectively arranged on the bottom surface two end side walls of seat cushion body, and each first lock hole group includes three lock holes arranged uniformly and at intervals; two second lock hole groups are respectively arranged on the bottom surface two end side walls of two seat cushion folding plates, and the second lock hole group includes two lock holes arranged uniformly and at intervals; the three lock holes of first lock hole group and the two lock holes of second lock hole group are distributed in horizontal plane staggeredly, and the telescopic lock rod can be arranged in first lock hole group and second lock hole group along horizontal direction.

[0015] Through the above technical scheme, multiple lock hole groups cooperate with telescopic lock rods, and the staggered distribution of lock hole axes constructs a stable space cross locking structure, which enhances the stability of the connection between seat cushion body and seat cushion folding plate, and enables the seat cushion folding plate to rotate relative to the seat cushion body around the axis of the hinge, so that the seat cushion can be switched between the two states of unfolding storage and folding sitting.

[0016] As a further technical scheme of the utility model: each group of buckle connecting parts includes a boss and an elastic lug, the boss is fixedly connected to the bottom of the seat cushion body, a groove matched with the boss is arranged in the bottom of the seat cushion folding plate, the elastic lug is fixed to the inner wall of the groove, and a clamping groove matched with the elastic lug is arranged on one side of the boss.

[0017] A button is arranged on the top surface of each seat cushion folding plate, the button is connected to the elastic lug, the elastic lug and the clamping groove are clamped and connected through the button, and the locking and unlocking of the two seat cushion folding plates and the seat cushion body are realized.

[0018] Through the above technical scheme, simple and reliable locking and unlocking operations between the seat cushion folding plate and the seat cushion body are realized; in the folded sitting state, the seat cushion folding plate is locked at the bottom of the seat cushion body, the precise fitting of the boss and the groove is matched with the elastic clamping structure, the seat cushion folding plate is prevented from shaking, and the safety and comfort of riding are ensured; when unfolding storage is needed, the seat cushion folding plate can be unlocked conveniently and quickly, the elastic lug can be driven to leave the clamping groove only by pressing the button on the top surface of the seat cushion, the unlocking is completed, and the convenience of user operation and the efficiency of seat cushion state switching are improved.

[0019] As a further technical scheme of the utility model: the connecting support part includes four support rods, one end of each support rod is hingedly connected through a hinge boss fixedly arranged at the bottom of the seat cushion folding plate, and a hook is integrally formed at the other end of the support rod; the bottom of the seat cushion folding plate and the corresponding position of the seat cushion body are both provided with a hook and loop fastener matched with the hook.

[0020] Through the technical scheme, the four supporting rods are matched with the hooks and the clasps in the unfolded article placing state, and stable support is provided for the seat cushion folding plate, so that the seat cushion folding plate and the seat cushion body form a flat article placing surface, and safe article placing is ensured.

[0021] As a further technical scheme of the utility model, four supporting rod grooves are formed in the bottom of the seat cushion body, and are used for accommodating the supporting rods and the hinge bosses at the bottom of the seat cushion folding plate.

[0022] Through the technical scheme, in the folded sitting state, the supporting rods and the hinge bosses can be accommodated in the supporting rod grooves in the bottom of the seat cushion body, no extra space is occupied, and compactness and aesthetics of the overall structure of the seat cushion are ensured.

[0023] As a further technical scheme of the utility model, the top surface of the seat cushion is provided with anti-skid lines.

[0024] Through the technical scheme, the anti-skid lines on the surface of the seat cushion significantly improve the safety of the saddle when a person sits on the saddle and when articles are placed, effectively prevent the rider from slipping and articles from sliding, reduce the risk of accidents, and provide users with a more reliable use experience.

[0025] As a further technical scheme of the utility model, the protective fence is rotatably connected to the edges of the two seat cushion folding plates, and the protective fence can be folded and accommodated in the accommodation grooves at the edges of the two seat cushion folding plates.

[0026] Through the technical scheme, the protective fence is rotatably connected to the seat cushion folding plate, the quick conversion of the protective fence between the accommodation state and the protection state is realized, the compactness of the saddle when folded is not affected, effective side protection is provided when the saddle is unfolded and articles are placed, and the safety and reliability of the saddle article placing function are further improved.

[0027] In summary, the utility model has at least one of the following beneficial technical effects:

[0028] 1. The utility model discloses a folding device of a small saddle of an electric bicycle, which realizes the quick switching of the electric bicycle saddle between the unfolded article placing state and the folded sitting state through the movable connecting mechanism of the seat cushion body and the two seat cushion folding plates, solves the problem of single function of the traditional seat cushion, improves the space utilization rate and the use flexibility of the user, and has the advantages of the following.

[0029] 2. The utility model discloses a folding device of a small saddle of an electric bicycle, which realizes the stable locking of the seat cushion in the unfolded and folded states through the hinge, the buckle connecting part and the connecting support part in the movable connecting mechanism and the matched lock rod, the lock hole, the supporting rod and other components, guarantees the safety and reliability of the saddle in different use scenarios, and facilitates the operation and the switching of the seat cushion state.

[0030] 3. This utility model discloses a folding device for a small saddle of an electric bicycle. Through the anti-slip texture on the seat surface and the design of the guardrail, it can prevent the rider from slipping when sitting and prevent items from sliding and falling when placed on it, thus comprehensively improving the user's riding safety and user experience. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram illustrating the connection between the folding saddle and the rear seat of an electric bicycle in Example 1.

[0032] Figure 2 This is an exploded schematic diagram of Example 1.

[0033] Figure 3 This is a three-dimensional structural diagram of the folded saddle of the electric bicycle in Example 1.

[0034] Figure 4 This is a three-dimensional structural diagram of the electric bicycle saddle in a semi-folded state, as shown in Example 1.

[0035] Figure 5 This is a three-dimensional structural diagram of the fully unfolded saddle of the electric bicycle in Example 1.

[0036] Figure 6 This is a front view of the folded saddle of the electric bicycle in Embodiment 1.

[0037] Figure 7 This is a front view of the electric bicycle saddle in a semi-folded state according to Embodiment 1.

[0038] Figure 8 This is a front view of the electric bicycle saddle in the fully extended state according to Embodiment 1.

[0039] Figure 9 This is a three-dimensional structural diagram of the electric bicycle saddle in the fully extended state according to Embodiment 2.

[0040] Figure label:

[0041] 1. Seat cushion; 11. Seat cushion body; 12. Seat cushion folding plate; 121. Button; 123. Groove; 124. Storage slot; 13. Movable connecting mechanism; 131. Hinge; 131a. Telescopic locking rod; 131b. First locking hole group; 131c. Second locking hole group; 132. Buckle connection part; 132a. Boss; 132b. Elastic protrusion; 132c. Slot; 133. Connecting support part; 133a. Support rod; 133b. Hinge boss; 133c. Hook; 133d. Hook; 133e. Support rod groove; 2. Seat cushion bracket; 21. Top plate; 22. Upright plate; 3. Electric bicycle rear seat; 4. Guardrail. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative work based on the embodiments in the present application shall fall within the protection scope of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Embodiment one:

[0046] Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 , the utility model discloses a folding device of electric bicycle small saddle, including seat pad 1 and with the detachable fixed connection of seat pad 1 seat pad support 2, seat pad support 2 is installed on electric bicycle rear seat 3, seat pad 1 including seat pad body 11, movable connection mechanism 13 and two seat pad folding plate 12, two seat pad folding plate 12 is respectively through movable connection mechanism 13 rotationally connected in the both sides of seat pad body 11, realizes the switching between the fixed state of seat pad 1 in unfolding and placing and the fixed state of folding person.

[0047] The top of the seat cushion body 11 and the two seat cushion folding plates 12 is made of soft and elastic material, such as leather, fabric or silicone, to ensure comfort and air permeability. The bottom of the seat cushion body 11 and the seat cushion folding plate 12 is made of high-strength material, such as plastic, metal or high-strength composite material, to ensure the structural stability of the seat cushion 1 and facilitate reliable fixation and installation with the seat cushion support 2 and other connecting components.

[0048] The top plate 21 and the vertical plate 22 of the seat cushion support 2 can be made of aluminum alloy material and integrally formed by precision casting process, which has good strength and corrosion resistance. In addition, rubber cushions can be provided at the connecting parts of the seat cushion support 2, the seat cushion body 11 and the electric bicycle rear seat 3 to reduce the transmission of vibration during riding.

[0049] Reference Figure 2 The seat cushion support 2 includes an integrally formed top plate 21 and a vertical plate 22. The top plate 21 is embedded in the bottom of the seat cushion body 11 and fixedly connected thereto. The vertical plate 22 is detachably connected to the tail end of the electric bicycle rear seat 3. The fixed connection between the top plate 21 and the seat cushion body 11 can be achieved by bolt connection, buckle connection, adhesive connection, etc. For example, elastic steel sheet hooks are provided on the edge of the top plate 21, and corresponding card slots are provided on the bottom of the seat cushion body 11. During installation, the top plate 21 is aligned with the bottom of the seat cushion body 11, and the hooks are inserted into the card slots by pressing, and the elastic clamping force between the hooks and the card slots is used to achieve fixation.

[0050] Reference Figure 4 and Figure 5 The movable connection mechanism 13 includes a hinge 131, two sets of buckle connection parts 132 and a connection support part 133. The two seat cushion folding plates 12 are respectively rotatably connected to the two sides of the seat cushion body 11 through the hinge 131. The buckle connection part 132 is provided at the bottom of the seat cushion 1 to lock the two seat cushion folding plates 12 after folding at the bottom of the seat cushion body 11. The connection support part 133 is provided at the bottom of the seat cushion 1 to lock the two seat cushion folding plates 12 at the same horizontal plane on the two sides of the seat cushion body 11 after unfolding.

[0051] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5The hinge 131 comprises two telescopic locking rods 131a, two first locking hole groups 131b and two second locking hole groups 131c. The two first locking hole groups 131b are respectively arranged on the bottom side walls of the two ends of the seat cushion body 11, and each first locking hole group 131b comprises three locking holes arranged uniformly at intervals. The two second locking hole groups 131c are respectively arranged on the bottom side walls of the two ends of the two seat cushion folding plates 12, and each second locking hole group 131c comprises two locking holes arranged uniformly at intervals. The three locking holes of each first locking hole group 131b and the two locking holes of each second locking hole group 131c are distributed in a staggered manner in the horizontal plane, and the telescopic locking rod 131a can be arranged in the first locking hole group 131b and the second locking hole group 131c in the horizontal direction, so as to form a spatially staggered locking structure, which greatly enhances the stability of the seat cushion 1 in different states.

[0052] The two telescopic locking rods 131a are generally made of stainless steel, which can withstand the tension and pressure during the folding of the seat cushion 1, and can ensure that the telescopic locking rod 131a is not easily deformed or rusted during long-term use, and can ensure the reliability and stability of the telescopic function. The first locking hole group 131b and the second locking hole group 131c can be made of aluminum alloy, which has the characteristics of light weight, high strength and corrosion resistance.

[0053] In addition, the inner walls of the locking holes of the first locking hole group 131b and the second locking hole group 131c can be specially treated, such as electroplating and anodic oxidation, in order to improve their wear resistance and strength, increase the hardness and smoothness of the locking hole surface, reduce the friction between the inner wall of the locking hole and the telescopic locking rod 131a, and prolong the service life.

[0054] The telescopic locking rod 131a is internally provided with a spiral spring, one end of the spring is fixed in the telescopic locking rod 131a, and the other end is connected with the head of the telescopic locking rod 131a. When the telescopic locking rod 131a is inserted into the locking hole, the spring is compressed to store energy; when it is pulled out, the spring releases energy to help the telescopic locking rod 131a to pop out, making the operation more labor-saving. The head of the telescopic locking rod 131a is designed in a semispherical shape, which is convenient for quick and accurate alignment and insertion into the locking hole.

[0055] Reference Figure 4 and Figure 5Each set of buckle connection 132 includes a boss 132a and an elastic lug 132b, the boss 132a is fixedly connected to the bottom of the seat cushion body 11, the bottom of the seat cushion folding plate 12 is provided with a groove 123 matched with the boss 132a, the elastic lug 132b is fixed to the inner wall of the groove 123, and one side of the boss 132a is provided with a clamping groove 132c matched with the elastic lug 132b; the top surface of each seat cushion folding plate 12 is provided with a button 121, the button 121 is connected with the elastic lug 132b, the elastic lug 132b and the clamping groove 132c are clamped and connected through the button 121, and the locking and unlocking of the two seat cushion folding plates 12 and the seat cushion body 11 are realized.

[0056] The elastic lug 132b can be made of rubber material, has good oil resistance, wear resistance and high elasticity, and can maintain stable working performance in various environments. Further, a thin layer of stainless steel sheet can be vulcanized on the surface of the elastic lug 132b to enhance the wear resistance. The clamping groove 132c is made of stainless steel stamping and the edge is passivated to prevent the elastic lug 132b from being damaged during clamping and disengaging.

[0057] The button 121 and the elastic lug 132b are connected through a thin connecting rod, the surface of the connecting rod is polished to reduce the movement friction. A rubber sealing sleeve can also be installed at the connection between the button 121 and the elastic lug 132b to prevent dust, water vapor and other impurities from entering and affecting the normal operation of the mechanism.

[0058] Reference Figure 4 and Figure 5 The bottom surface of the seat cushion folding plate 12 is provided with a connecting support 133, the connecting support 133 includes four support rods 133a, one end of each support rod is hingedly connected through a hinged boss 133b fixedly arranged on the bottom of the seat cushion folding plate; the other end of the support rod 133a is integrally provided with a hook 133c; the bottom of the seat cushion folding plate 12 and the corresponding position of the seat cushion body 11 are provided with a hook 133c adapted to the hook 133c; the bottom of the seat cushion body 11 is provided with four support rod grooves 133e for accommodating the four support rods 133a and the four hinged bosses 133b on the bottom of the seat cushion folding plate 12.

[0059] The support rod 133a can be made of light weight and high strength material, such as aluminum alloy material or high strength plastic material, and the surface of the support rod 133a can also be anodized to enhance corrosion resistance; the hinged boss 133b is made of a material with high strength, wear resistance and corrosion resistance, such as stainless steel or copper alloy; the hook 133d is made of a material with high strength, certain toughness and good wear resistance and corrosion resistance, such as carbon steel or nylon.

[0060] Reference Figure 2 and 6When the seat cushion 1 is in the folded state, the four support rods 133a of the connecting support part 133 and the four hinged bosses 133b at the bottom of the seat cushion folding plate 12 can be accommodated in the four support rod grooves 133e at the bottom of the seat cushion folding plate 12, the seat cushion body 11 and the seat cushion folding plate 12 can be completely fitted, without occupying extra space, reducing the collision and wear between parts, and not affecting the normal use of the seat cushion 1.

[0061] Reference Figure 5 When the seat cushion 1 is used as a shelf, the hinged bosses 133b at one end of the support rods 133a of the connecting support part 133 are still at the bottom of the seat cushion folding plate 12, but the hooks 133c at the other end of the support rods 133a are hung on the hooks 133d at the bottom of the seat cushion body 11. At this time, the connecting support part 133 can provide stable and reliable support for the seat cushion folding plate 12, ensuring that the seat cushion folding plate 12 and the seat cushion body 11 together form a flat and stable shelf surface to meet the user's needs for placing objects.

[0062] In addition, to prevent the four support rods 133a from accidentally rotating during use, a limiting buckle is provided at the hinged boss 133b. When the connecting support part 133 is rotated to the horizontal support position, the limiting buckle automatically engages, firmly locking the connecting support part 133 in the current position, effectively preventing displacement due to vibration or uneven force.

[0063] The upper surface of the seat cushion 1 is provided with anti-slip patterns, which can effectively prevent the rider from slipping during riding and the objects from sliding when placed. The anti-slip patterns are designed in a wave shape, and the height of the wave crest and the depth of the wave trough are optimized through ergonomics and mechanics, which can provide sufficient friction and will not affect the comfort of the seat cushion. The anti-slip patterns are evenly spaced, and there are drainage grooves to facilitate the drainage of rainwater or other liquids, maintaining the anti-slip effect.

[0064] Reference Figure 5 and Figure 8 The installation steps of the seat cushion 1 in the unfolded shelf state are as follows:

[0065] First, install the seat cushion support 2, fix the vertical plate 22 of the seat cushion support 2 to the tail end of the electric bicycle rear seat 3 by bolts; embed the top plate 21 into the clamping groove at the bottom of the seat cushion body 11, and complete the clamping and fixed connection;

[0066] Then, unlock the folding seat cushion 1, pull the telescopic locking rod 131a horizontally and outward, so that the seat cushion body 11 and the seat cushion folding plate 12 are in a rotatable and movable state; at the same time, press the two buttons 121 on the top surface of the seat cushion folding plate 12, and drive the elastic lugs 132b to retract into the grooves 123 through the connecting rods;

[0067] Next, unfold the seat cushion folding plate 12, turn the two seat cushion folding plates 12 upward by 180°, until they are in the same horizontal plane as the seat cushion body 11;

[0068] Next, the unfolded state of the seat cushion 1 is locked, the telescopic lock rod 131a is pushed to move inward, and the telescopic lock rod 131a sequentially passes through the lock holes of the first lock hole group 131b and the second lock hole group 131c, and the connecting support part 133 is installed. First, the hook 133c of the support rod 133a is released from the hook 133d at the bottom of the seat cushion folding plate 12, and then each support rod 133a is rotated around the hinge boss 133b away from the bottom of the seat cushion folding plate 12 until it is rotated to the bottom of the seat cushion body 11, and the hook 133c of the support rod 133a is aligned and buckled with the hook 133d at the bottom of the seat cushion body 11. At this time, the connecting support part 133 can provide stable and reliable support for the seat cushion folding plate 12, ensuring that the seat cushion folding plate 12 and the seat cushion body 11 together form a flat and stable horizontal storage surface to meet the user's needs for placing objects.

[0069] Reference Figure 3 and Figure 6 , the installation steps of the seat cushion 1 in the folded sitting state:

[0070] First, install the seat cushion support 2, fix the vertical plate 22 of the seat cushion support 2 to the tail end of the electric bicycle rear seat 3 by bolts, and embed the top plate 21 into the clamping groove at the bottom of the seat cushion body 11 to complete the clamping and fixed connection;

[0071] Then, store the connecting support part 133. First, release the buckling connection between the hook 133c of each support rod 133a and the hook 133d at the bottom of the seat cushion body 11, rotate each support rod 133a around the rotating hinge boss 133b until it is rotated to the bottom of the two seat cushion folding plates 12, and accurately buckle the hook 133c of each support rod 133a into the hook 133d at the bottom of the two seat cushion folding plates 12;

[0072] Reference Figure 4 and Figure 7 Next, fold the two seat cushion folding plates 12, horizontally pull the telescopic lock rod 131a so that the two seat cushion folding plates 12 can be flipped down to the bottom of the seat cushion body 11, and confirm that the support rod 133a and the hinge boss 133b at the bottom of the seat cushion body 11 can be completely stored in the support rod groove 133e, and press the button 121 to drive the elastic lug 132b to retract into the groove 123 through the connecting rod, so that the seat cushion body 11 and the two seat cushion folding plates 12 are completely attached;

[0073] Finally, release the button 121, the elastic lug 132b is clamped in the clamping groove 132c, thereby locking and fixing the seat cushion body 11 and the two seat cushion folding plates 12, and pushing the telescopic lock rod 131a to pass through the lock holes of the first lock hole group 131b and the second lock hole group 131c and lock the telescopic lock rod 131a.

[0074] Embodiment two:

[0075] Reference Figure 9 Unlike embodiment one, the utility model discloses a folding device of small saddle of electric bicycle still includes guardrail 4, and other technical features are same with embodiment one.

[0076] Two seat cushion folding plates 12 edge end set up two guardrails 4, and two guardrails 4 are respectively connected with two seat cushion folding plates 12 rotationally, and guardrail 4 can be folded and is respectively stored in the storage groove 124 at the edge of two seat cushion folding plates 12.

[0077] The rotation connection structure of guardrail 4 can adopt the mode of hinge to connect the edge of seat cushion folding plate 12, and the folding mode of guardrail 4 can adopt the mode of segmented folding, and guardrail 4 is of segmented structure, is connected through flexible connecting piece or small hinge between each section, for example, guardrail 4 can be divided into two sections, and is connected through a small plastic hinge in the middle. When folding is needed, two sections of guardrail 4 can be relatively rotated and attached together, which greatly reduces the space occupied by guardrail 4 when being stored.

[0078] Among them, guardrail 4 needs to use light weight, high strength and good flexibility material, such as high polymer material with light, easy processing, low cost and corrosion resistance, such as plastic material, or high strength, light weight and corrosion resistant metal alloy material, such as aluminum alloy, the height of guardrail 4 is designed to be 10-15 cm according to the size of common articles, which can effectively block the falling of articles and will not cause inconvenience to users placing articles. The size of storage groove 124 is slightly larger than that of guardrail 4, and rubber buffer pad can be provided in the groove of storage groove 124 to reduce vibration noise when guardrail 4 is stored.

[0079] In addition, the surface of guardrail 4 is treated by plastic spraying, and the plastic spraying layer not only can provide good decoration effect, but also can enhance the rust prevention and corrosion resistance of guardrail 4.

[0080] In the unfolded article placing state of seat cushion 1, after other components are installed, finally, guardrail 4 is taken out from the storage groove 124 at the edge of seat cushion folding plate 12, and after guardrail 4 is unfolded, it is turned to the vertical position with seat cushion folding plate 12, and is fixed through the buckle arranged at the edge of seat cushion folding plate 12, to ensure that it will not shake or fold accidentally during use.

[0081] In the folded state of seat cushion 1, guardrail 4 can be completely stored in storage groove 124, so that the overall structure of seat cushion is compact, and in the folded sitting state, the protrusion of guardrail 4 will not affect the riding experience, and it is also beneficial to vehicle parking and improves space utilization.

[0082] The embodiments of the present embodiment are the preferred embodiments of the present utility model, not limited to the protection scope of the present utility model, so: all equivalent changes made according to the structure, shape and principle of the present utility model should be covered in the protection scope of the present utility model.

Claims

1. A folding device for a small saddle of an electric bicycle, characterized in that, The utility model relates to an electric bicycle rear seat folding seat, including seat cushion (1) and with seat cushion (1) detachable fixed connection seat cushion support (2), seat cushion support (2) is installed on electric bicycle rear seat (3); The seat cushion (1) includes a seat cushion body (11), a movable connection mechanism (13), and two seat cushion folding plates (12), the two seat cushion folding plates (12) are rotatably connected to the two sides of the seat cushion body (11) through the movable connection mechanism (13) respectively, realizing the switching between the unfolded storage fixed state and the folded sitting fixed state of the seat cushion (1).

2. The folding device for a small saddle of an electric bicycle according to claim 1, characterized in that, The seat cushion support (2) includes an integrally formed top plate (21) and a vertical plate (22), the top plate (21) is embedded into the bottom of the seat cushion body (11) and fixedly connected thereto, and the vertical plate (22) is detachably fixedly connected to the tail end of the electric bicycle rear seat (3).

3. The folding device for a small saddle of an electric bicycle according to claim 1, characterized in that, The movable connection mechanism (13) includes a hinge (131), two groups of buckle connection parts (132), and a connection support part (133); The two seat cushion folding plates (12) are rotatably connected to the two sides of the seat cushion body (11) through the hinge (131) respectively. The buckle connection part (132) is arranged at the bottom of the seat cushion (1) for locking the two seat cushion folding plates (12) at the bottom of the seat cushion body (11) after being folded. The connection support part (133) is arranged at the bottom of the seat cushion (1) for locking the two seat cushion folding plates (12) at the same horizontal plane on the two sides of the seat cushion body (11) after being unfolded.

4. The folding device for a small saddle of an electric bicycle according to claim 3, characterized in that, The hinge (131) includes two telescopic lock rods (131a), two first lock hole groups (131b), and two second lock hole groups (131c). The two first lock hole groups (131b) are respectively arranged on the end side walls of the bottom surface of the seat cushion body (11), and each first lock hole group (131b) includes three lock holes arranged uniformly and at intervals. The two second lock hole groups (131c) are respectively arranged on the end side walls of the bottom surfaces of the two seat cushion folding plates (12), and each second lock hole group (131c) includes two lock holes arranged uniformly and at intervals. The three lock holes of the first lock hole group (131b) and the two lock holes of the second lock hole group (131c) are distributed in a staggered manner in the horizontal plane, and the telescopic lock rod (131a) can pass through the first lock hole group (131b) and the second lock hole group (131c) in the horizontal direction.

5. The folding device for a small saddle of an electric bicycle according to claim 3, characterized in that, Each group of buckle connection parts (132) includes a boss (132a) and an elastic lug (132b), the boss (132a) is fixedly connected to the bottom of the seat cushion body (11), a groove (123) matched with the boss (132a) is arranged in the bottom of the seat cushion folding plate (12), the elastic lug (132b) is fixed to the inner wall of the groove (123), and a clamping groove (132c) matched with the elastic lug (132b) is arranged on one side of the boss (132a). The top surface of each of the seat cushion folding plates (12) is provided with a button (121) connected with the elastic lugs (132b), the button (121) controls the clamping connection of the elastic lugs (132b) and the clamping grooves (132c), and the locking and unlocking of the two seat cushion folding plates (12) and the seat cushion body (11) are realized.

6. The folding device for a small saddle of an electric bicycle according to claim 3, characterized in that, The connecting support part (133) comprises four support rods (133a), one end of each of the support rods (133a) is hingedly connected through a hinged boss (133b) fixedly arranged at the bottom of the seat cushion folding plate (12), The other end of the support rod (133a) is integrally provided with a hook (133c); The bottom of the seat cushion folding plate (12) and the seat cushion body (11) are provided with a hook (133c) adapted to the hook (133c) at the corresponding position.

7. A folding device for a small saddle of an electric bicycle according to claim 6, characterized in that, The bottom of the seat cushion body (11) is provided with four support rod grooves (133e) for accommodating the support rods (133a) and the hinged bosses (133b) at the bottom of the seat cushion folding plate (12).

8. The folding device for a small saddle of an electric bicycle according to claim 1, characterized in that, The top surface of the seat cushion (1) is provided with anti-skid lines.

9. The folding device for a small saddle of an electric bicycle according to claim 1, characterized in that, Further comprising two guardrails (4) rotatably connected at the edges of the two seat cushion folding plates (12), the two guardrails (4) can be folded and accommodated in the accommodation grooves (124) at the edges of the two seat cushion folding plates (12) respectively.

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