Saddle with backrest capable of being adjusted in multiple directions

Abstract

A saddle with a backrest capable of being adjusted in multiple directions comprises a supporting frame, the bottom of the supporting frame is connected with a cushion through an installation base, the two sides of the lower portion of the installation base are connected with an upper adjusting base and a lower adjusting base, the upper adjusting base and the lower adjusting base define an adjusting hole, and the supporting frame is installed in the adjusting hole in a sliding mode; locking holes are formed in the upper adjusting seat and the lower adjusting seat in a penetrating mode, and a locking screw is inserted into the two locking holes in a penetrating mode to lock the relative position between the cushion and the supporting frame. And a backrest is movably connected to the upper part of the support frame. The multi-direction and multi-degree-of-freedom adjustable seat has the advantages that the seat cushion and the backrest can be adjusted in multiple directions and multiple degrees of freedom, a user can adjust the seat cushion and the backrest in multiple directions according to requirements, personalized comfortable support is provided, adaptability is high, and riding safety is improved. Meanwhile, adjusting operation is convenient and fast, the adjusting difficulty is low, a user can quickly and easily complete the adjusting operation, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, specifically a car seat with a multi-directional adjustable backrest. Background Technology

[0002] With the continuous advancement of urbanization, personal transportation tools such as electric vehicles and bicycles have become the main means of daily travel. The seat is the part that people come into direct contact with when using electric vehicles, and its comfort directly affects the rider's intuitive experience. Traditional bicycle seats have a relatively simple structure, providing only basic support without a backrest. For long-distance riders or people with special needs such as lower back discomfort, the lack of effective lumbar and back support can easily lead to riding fatigue, affecting both comfort and safety.

[0003] To address this shortcoming, some bicycle seats are designed with a backrest structure. However, the backrest is often fixed to the main body of the seat or secured with simple bolts. The height of the backrest cannot be adjusted, making it unsuitable for riders of different heights and body types. This results in discomfort caused by the backrest being too high or too low, and the seat cannot provide effective support. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a bicycle seat with a backrest that is simple in structure, low in manufacturing cost, has multi-directional adjustment function, is easy to adjust, improves the convenience of use, enhances the comfort of the seat, and is highly adaptable.

[0005] The purpose of this utility model is achieved in the following way: a multi-directional adjustable backrest car seat, comprising a support frame, a seat cushion connected to the bottom of the support frame via a mounting seat, an upper adjustment seat and a lower adjustment seat connected to the lower two sides of the mounting seat, the upper and lower adjustment seats forming an adjustment hole, the support frame being slidably installed in the adjustment hole; a locking hole is provided through the upper and lower adjustment seats, a locking screw is inserted into the two locking holes to lock the relative position between the seat cushion and the support frame; a backrest is movably connected to the top of the support frame.

[0006] The upper adjustment seat extends and bends to form a slot on one side, and correspondingly, the lower adjustment seat extends and bends to form an insert plate on one side. The insert plate is inserted into the slot and clamps the support frame in the adjustment hole.

[0007] An upper locking plate extends from the other side of the upper adjusting seat, and a lower locking plate extends from the other side of the lower adjusting seat. The locking hole passes through the upper locking plate and the lower locking plate.

[0008] Guide cylinders are connected to both sides below the mounting base, and the guide cylinders are distributed correspondingly to the adjustment holes; the support frame passes through the adjustment holes and is connected to the guide cylinders in sequence.

[0009] The mounting base has several connecting grooves, and the bottom of the cushion has several connecting holes. The locking screw passes through the connecting grooves and connects with the connecting holes to connect the mounting base and the cushion into one piece; the connecting grooves are waist-shaped grooves.

[0010] The support frame is arranged in an L-shape, with an open lower end.

[0011] The backrest is equipped with a lock seat and a cover plate covering the outside of the lock seat. The lock seat and the cover plate form a lock hole, and the support frame is inserted into the lock hole from above.

[0012] A locking rod is installed on the outside of the cover plate. The locking rod passes through the cover plate and the lock seat in sequence and connects to the backrest to lock the relative position of the backrest on the support frame.

[0013] An anti-slip pad is fitted inside the keyhole.

[0014] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0015] 2. The seat and backrest are adjustable in multiple directions and with multiple degrees of freedom. Users can make fine adjustments according to their needs, providing personalized comfort support, strong adaptability, and improving riding safety.

[0016] 3. The adjustment operation is convenient and easy, allowing users to quickly and easily complete the adjustment operation, thus improving the convenience of use.

[0017] 4. The adjustment structure is equipped with a locking mechanism to further enhance the clamping force on the support frame, making the sliding of the support frame within the adjustment hole and locking hole more stable. Attached Figure Description

[0018] Figure 1 This is a rendering of the final assembly of this utility model.

[0019] Figure 2 This is a schematic diagram of the bottom structure of the vehicle seat in this utility model.

[0020] Figure 3 This is an exploded view of the backrest and support frame in this utility model.

[0021] Figure 4 This is a schematic diagram of the cover plate in this utility model.

[0022] Figure 5 This is an exploded view of the seat cushion and support frame in this utility model.

[0023] Figure 6 This is an exploded view of the structure of the seat cushion and mounting base in this utility model.

[0024] Figure 7 This is a schematic diagram of the upper and lower adjusting seats in this utility model.

[0025] Figure 8 This is an exploded view of the upper and lower adjusting seats in this utility model. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. A multi-directional adjustable car seat includes a support frame 1. A seat cushion 2 is connected to the bottom of the support frame 1 via a mounting base 4. An upper adjustment base 5 and a lower adjustment base 6 are connected to the lower sides of the mounting base 4. The upper adjustment base 5 and the lower adjustment base 6 together form an adjustment hole 7. The support frame 1 is slidably installed in the adjustment hole 7. A locking hole 8 is provided through the upper adjustment base 5 and the lower adjustment base 6. A locking screw 9 is inserted into the two locking holes 8 to lock the relative position between the seat cushion 2 and the support frame 1. A backrest 3 is movably connected to the top of the support frame 1.

[0027] In this bicycle seat, the seat cushion is connected to the bottom of the support frame via a mounting bracket. Below the mounting bracket are upper and lower adjustment brackets. The support frame is inserted into the adjustment hole formed by the upper and lower adjustment brackets. It should be noted that the support frame can slide back and forth within this adjustment hole, thereby adjusting the relative position of the seat cushion on the support frame, and thus achieving fore-and-aft adjustment of the seat cushion. Once the support frame is adjusted to the appropriate position, locking screws are inserted into the locking holes of the upper and lower adjustment brackets respectively. The locking holes clamp and lock the support frame, thus locking the relative position between the seat cushion and the support frame, ensuring a stable, reliable, and secure connection. This simple structure employing a sliding fit and screw locking mechanism offers a mature and reliable adjustment method, is easy and simple to operate, and allows for quick fore-and-aft adjustment of the seat.

[0028] Furthermore, a backrest is movably connected above the support frame. The backrest is also movable, meaning that the user can adjust the height of the backrest, achieving multi-directional adjustability of the seat. This multi-directional and flexible adjustment of the seat can better adapt to users of different heights, body types, or riding habits, providing diverse and comfortable support and enhancing the user experience.

[0029] The upper adjustment seat 5 extends and bends on one side to form a slot 51. Correspondingly, the lower adjustment seat 6 extends and bends on one side to form an insert plate 61. The insert plate 61 is inserted into the slot 51 and clamps the support frame 1 in the adjustment hole 7.

[0030] like Figure 7-8As shown: The upper adjusting seat is provided with a slot, and the corresponding slot is connected and assembled. The lower adjusting seat is provided with an insert plate. The insert plate is inserted into the slot to initially fix the adjusting hole formed by the upper and lower adjusting seats. When the support frame is inserted into the adjusting hole and slides, the cooperation between the insert plate and the slot helps to prevent misalignment or opening between the upper and lower adjusting seats, thereby clamping the support frame more effectively and evenly, improving the guiding accuracy and clamping stability of the adjusting hole for the support frame, enhancing the connection stability between the two, and preventing the adjusting hole from easily deforming or shaking during the clamping of the support frame.

[0031] An upper locking plate 52 extends from the other side of the upper adjusting seat 5, and a lower locking plate 62 extends from the other side of the lower adjusting seat 6. The locking hole 8 is provided through the upper locking plate 52 and the lower locking plate 62.

[0032] like Figure 7-8 As shown: An upper locking plate is provided on the upper adjusting seat, and a lower locking plate is provided on the lower adjusting seat. The aforementioned locking holes pass through both the upper and lower locking plates, respectively. A locking screw is inserted between the two locking plates, thus connecting the upper and lower adjusting seats. Compared to the traditional method of directly creating locking holes in the adjusting seat body, the separately provided locking plates make the connection more stable and robust, providing a more solid bearing surface for the locking screw. When the locking screw is tightened, the tightening force is mainly transmitted to the two adjusting seats through the two locking plates, thereby locking the support frame. The locking plates make the tightening force more concentrated and stable, effectively preventing possible deformation of the adjusting seat body due to the tightening operation, thus ensuring the reliability and durability of the locking connection and protecting the main structure of the adjusting seat. In this design, the specially provided locking plates help improve the precise alignment of the locking holes, increase connection accuracy, and facilitate user control of the tightening operation.

[0033] Guide cylinders 10 are connected to both sides below the mounting base 4, and the guide cylinders 10 are distributed correspondingly to the adjustment holes 7; the support frame 1 passes through the adjustment holes 7 and is connected to the guide cylinders 10 in sequence.

[0034] like Figure 5 As shown: Guide cylinders corresponding to the adjustment holes are installed below the mounting base. The support frame passes through the adjustment holes and connects to the guide cylinders. During its sliding path, the support frame is guided and supported at least two axially spaced positions, forming multi-point guidance. This significantly enhances the stability of the support frame in both sliding and locking states, effectively preventing swaying, tilting, or jamming, and promoting smoother, more stable sliding. In this design, the combined support of the guide cylinders and the adjustment base disperses the force acting on the support frame, improving the load-bearing capacity of the mounting base.

[0035] The mounting base 4 is provided with several connecting grooves 41, and the bottom of the cushion 2 is provided with several connecting holes 21. The locking screw 9 passes through the connecting grooves 41 and connects with the connecting holes 21 to connect the mounting base 4 and the cushion 2 into one piece; the connecting grooves 41 are waist-shaped grooves.

[0036] like Figure 6 As shown: The mounting base has a connecting groove, and the seat cushion has connecting holes. Locking screws are passed through the connecting groove and connecting holes to connect the mounting base and seat cushion together. The connecting groove is a waist-shaped design, allowing the seat cushion to move slightly or horizontally relative to the mounting base within a certain range. This allows for minor adjustments to the seat cushion before final tightening, better adapting to individual user needs and compensating for tolerances during installation or manufacturing. This makes seat cushion installation more convenient, reduces installation difficulty, and makes aligning the holes on the mounting base and seat cushion easier.

[0037] The support frame 1 is arranged in an L-shape, with its lower end open.

[0038] like Figure 1-4 As shown, the support frame is L-shaped with an open lower end. The lower end of the support frame connects to the mounting base, and the open design facilitates the insertion and connection of the support frame with the adjustment seat and guide cylinder. The L-shaped structure effectively combines vertical support and adjustment with horizontal load-bearing and connection, resulting in high space utilization.

[0039] The backrest 3 is equipped with a lock seat 11 and a cover plate 12 covering the outside of the lock seat 11. The lock seat 11 and the cover plate 12 form a lock hole 13, and the support frame 1 is inserted into the lock hole 13 from above.

[0040] like Figure 3 As shown: A lock seat and cover plate are installed on the back of the seat. The lock seat and cover plate together form a lock hole, into which the upper end of the support frame is inserted and movably connected. The internal shape of the lock hole matches the shape of the upper end of the support frame, which not only guides the insertion of the support frame but also initially fixes the position of the seat back on the support frame to a certain extent, clarifying the connection method between the seat back and the support frame. Furthermore, the design of the lock seat and cover plate can conceal part of the connection structure, improving the aesthetics of the seat.

[0041] A locking rod 14 is installed on the outside of the cover plate 12. The locking rod 14 passes through the cover plate 12 and the lock seat 11 in sequence and is connected to the backrest 3 to lock the relative position of the backrest 3 on the support frame 1.

[0042] like Figure 3As shown: After the initial fixation between the backrest and the support frame, a locking rod is used to sequentially pass through the cover plate and lock seat, connecting to the backrest. During the tightening of the locking screw, the locking force acts sequentially on the cover plate, lock seat, and finally on the backrest, achieving adjustable and lockable height for the backrest. The connection is stable, reliable, and secure, meeting diverse user needs for backrest height. The backrest can be locked simply by tightening the external locking rod, facilitating user adjustment and providing sufficient clamping force to ensure stability of the backrest on the support frame.

[0043] An anti-slip pad 15 is fitted inside the lock hole 13.

[0044] like Figure 4 As shown: An anti-slip pad is added inside the keyhole. This pad increases friction, significantly increasing the friction between the support frame and the inner wall of the keyhole when the support frame is inserted, effectively preventing slippage and enhancing the locking effect. Even when the locking force of the locking rod is not very high, the anti-slip pad effectively prevents the backrest from accidentally sliding or rotating on the support frame due to force or vibration. Furthermore, the anti-slip pad reduces direct wear between the support frame and the inner wall of the keyhole, protecting the contact surfaces and extending their service life.

[0045] In summary: A mounting base is installed inside the seat to connect the seat cushion and support frame. The support frame can slide back and forth within the adjustment holes formed by the upper and lower adjustment seats of the mounting base, allowing for fore-and-aft adjustment of the seat cushion. Furthermore, the upper and lower adjustment seats are connected via a insert plate and slot, which, in conjunction with a locking plate on the other side, enhances the clamping effect of the adjustment holes on the support frame, improving the stability and locking reliability of the support frame. Even further, a guide cylinder provides additional guidance and support for the support frame, further improving its stability.

[0046] The upper end of the support frame inserts into the lock hole formed by the lock seat and cover plate on the backrest. This insertion method allows the backrest to move relative to the support frame, and the height of the backrest can be adjusted. Once the backrest is adjusted, the locking rod clamps and locks the lock seat and cover plate, thus locking the backrest in the appropriate position on the support frame. The connection is stable, reliable, and secure. An anti-slip pad inside the lock hole increases friction between the support frame and the lock hole, effectively preventing slippage of the support frame and further enhancing the reliability of the lock.

[0047] Both the seat and backrest can be adjusted in different directions, providing multi-directional adjustment. The adjustment structure is simple, eliminating the complex tools or cumbersome steps of traditional technology, allowing users to quickly and easily complete the adjustment, thus improving ease of use. Users can perform fine-tuned multi-directional adjustments according to their individual needs, effectively relieving fatigue from long rides, improving riding comfort, and enhancing riding safety, therefore, it can be widely promoted and used.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A car seat with a multi-directional adjustable backrest, characterized in that: It includes a support frame (1), the bottom of which is connected to a cushion (2) via a mounting base (4). An upper adjustment base (5) and a lower adjustment base (6) are connected to the lower sides of the mounting base (4). The upper adjustment base (5) and the lower adjustment base (6) together form an adjustment hole (7). The support frame (1) is slidably installed in the adjustment hole (7). A locking hole (8) is provided through the upper adjustment base (5) and the lower adjustment base (6). A locking screw (9) is inserted into the two locking holes (8) to lock the relative position between the cushion (2) and the support frame (1). A backrest (3) is movably connected to the top of the support frame (1).

2. The multi-directional adjustable backrest of the car seat according to claim 1, characterized in that: The upper adjustment seat (5) extends and bends on one side to form a slot (51), and correspondingly, the lower adjustment seat (6) extends and bends on one side to form a insert plate (61). The insert plate (61) is inserted into the slot (51) and clamps the support frame (1) in the adjustment hole (7).

3. A multi-directional adjustable backrest car seat according to claim 2, characterized in that: An upper locking plate (52) extends from the other side of the upper adjusting seat (5), and a lower locking plate (62) extends from the other side of the lower adjusting seat (6). The locking hole (8) is provided through the upper locking plate (52) and the lower locking plate (62).

4. A multi-directional adjustable backrest car seat according to claim 1, characterized in that: Guide cylinders (10) are connected to both sides below the mounting base (4), and the guide cylinders (10) are distributed correspondingly to the adjustment holes (7); the support frame (1) passes through the adjustment holes (7) and is connected to the guide cylinders (10).

5. A multi-directional adjustable backrest car seat according to claim 1, characterized in that: The mounting base (4) has several connecting grooves (41) through it, and the bottom of the cushion (2) has several connecting holes (21). The locking screw (9) passes through the connecting groove (41) and connects to the connecting hole (21) to connect the mounting base (4) and the cushion (2) into one piece; the connecting groove (41) is a waist-shaped groove.

6. A multi-directionally adjustable car seat with a backrest according to claim 1, characterized in that: The support frame (1) is arranged in an L-shape with an open lower end.

7. A multi-directionally adjustable car seat with a backrest according to claim 1, characterized in that: The backrest (3) is equipped with a lock seat (11) and a cover plate (12) covering the outside of the lock seat (11). The lock seat (11) and the cover plate (12) form a lock hole (13). The support frame (1) is inserted into the lock hole (13) from above.

8. A multi-directionally adjustable car seat with a backrest according to claim 7, characterized in that: A locking rod (14) is installed on the outside of the cover plate (12). The locking rod (14) passes through the cover plate (12) and the lock seat (11) in sequence and is connected to the backrest (3) to lock the relative position of the backrest (3) on the support frame (1).

9. A multi-directionally adjustable car seat with a backrest according to claim 7, characterized in that: An anti-slip pad (15) is fitted inside the lock hole (13).

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