Adjustable waist rest for vehicle

Abstract

The utility model discloses an adjustable waist rest for a vehicle, and belongs to the field of motor vehicle equipment. The device mainly comprises a shell cover plate, a shell bottom plate is fixedly connected to the bottom of the shell cover plate, a first-stage telescopic frame is slidably arranged in the shell cover plate and the shell bottom plate, a support angle locking assembly is arranged on the inner side of the rear portion of the shell cover plate, a second rotating hole is fixedly formed in the rear portion of the shell cover plate, and supporting legs are rotationally connected to the two sides of the rear portion of the shell cover plate. Baffles are rotationally connected to the outer sides of the supporting legs, a mounting notch is fixedly formed in the bottom of the bottom plate of the shell, and a first-stage telescopic locking assembly is fixedly mounted in the mounting notch. By designing the limiting assembly, when the tooth column makes contact with the limiting clamping teeth, the second-stage telescopic rod is locked in the first-stage telescopic frame body, and when a user presses the first cap downwards, the extending distance of the second-stage telescopic rod in the first-stage telescopic frame body can be adjusted at will. The waist support is mainly used for supporting the waist of a driver.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of motor vehicle equipment, specifically, especially relates to a adjustable waist rest for vehicle. BACKGROUND

[0002] At present, the backrests of motorcycles and electric vehicles on the market are mostly fixed backrests, which are installed at the tail of the motorcycle cushion, not only can provide waist support for the rear seat passengers, but also can prevent the passengers from falling and ensure the safety of riding, but the backrest of the rear seat cannot provide waist support for the driver, and the driver's waist is easy to fatigue during riding, and the comfort is low.

[0003] The Chinese patent with the authorized announcement number "CN216761991U" discloses a portable motorcycle waist rest, which comprises a sponge backrest, a fixed seat, a rear cargo rack body and a backrest support body, the rear cargo rack body is installed on one side of the backrest support body, in use, the backrest support body is provided with an extension adjusting piece and a screw in the middle, so that the backrest support body has the advantage of being telescopic, and the use height is convenient to adjust, at the same time, the rear cargo rack body and the backrest support body are fixed by bolts and do not rotate, so as to ensure the stability of the rear cargo rack body and make it firm and noiseless in use.

[0004] In the later use process, the device still has the following problems: 1, the sponge backrest lacks a locking mechanism on the fixed seat, when the user leans back with great force, the sponge backrest is easy to slide randomly, which affects the user's use experience; 2, the motorcycle seat is long, when the rear seat is not occupied, the backrest cannot be stretched forward to provide a leaning effect for the rider. Utility model content

[0005] The utility model solves the technical problems that the prior art has shortcomings, provides a adjustable waist rest for vehicle, through the design of the limiting assembly, under the pushing of the compression spring three, the tooth column is in contact with the limiting tooth, the locking of the extension distance of the two-stage extension rod in the one-stage extension frame body is realized, when the user presses down the cap one with force, the extension distance of the two-stage extension rod in the one-stage extension frame body can be adjusted arbitrarily.

[0006] The adjustable waist support for vehicle comprises a shell cover plate, a shell bottom plate fixedly connected to the bottom of the shell cover plate, a first telescopic frame body slidably arranged in the shell cover plate and the shell bottom plate, a limiting groove fixedly arranged on the inner wall of the top of the shell cover plate, a support angle locking assembly arranged on the inner side of the rear of the shell cover plate, a rotating hole two fixedly arranged on one side of the support angle locking assembly, a mounting hole one fixedly arranged on the front of the rotating hole two, a positioning groove fixedly arranged on the front of the rotating hole two, a supporting leg rotatably connected to the both sides of the rear of the shell cover plate, a screw hole one fixedly arranged on the bottom of the supporting leg, a rotating hole one fixedly arranged on the top of the supporting leg, a lock hole one fixedly arranged on one side of the rotating hole one, a baffle rotatably connected to the outer side of the supporting leg, a positioning protrusion fixedly connected to the front of the baffle, the positioning protrusion and the positioning groove being engaged, a rotating hole three fixedly arranged on the rear of the baffle, the rotating hole three, the rotating hole two and the rotating hole one being rotatably connected to the bolt, a plurality of bearings one rotatably connected to the inner side wall of the shell bottom plate, a mounting slot fixedly arranged on the bottom of the shell bottom plate, and a first telescopic locking assembly fixedly installed in the mounting slot.

[0007] Preferably, the support angle locking assembly comprises a lifting plate, a locking rod rotatably connected to the lifting plate, the locking rod being slidably connected to the mounting hole one, a compression spring one fixedly connected to the locking rod, and the other end of the compression spring one being fixedly connected to the mounting hole one.

[0008] Preferably, the first telescopic locking assembly comprises a fixed pressing strip fixedly connected to the shell bottom plate, a sliding rod fixedly connected to the fixed pressing strip, an adjusting sliding block slidably connected to the sliding rod, a finger block fixedly connected to the bottom of the adjusting sliding block, a plurality of spring top beads one fixedly installed on the top of the adjusting sliding block, a compression spring two fixedly connected to one side of the adjusting sliding block, and the other end of the compression spring two being fixedly connected to the fixed pressing strip.

[0009] Preferably, the first telescopic frame body comprises a sliding rail one fixedly connected to the outer wall of the first telescopic frame body, the sliding rail one being rollingly connected to the bearing one, a limiting protrusion fixedly connected to the top rear end of the first telescopic frame body, the limiting protrusion being slidably connected to the limiting groove, a mounting hole two fixedly arranged on the top front end of the first telescopic frame body, a limiting assembly arranged in the mounting hole two, an adjusting clamping groove one fixedly arranged on the bottom of the first telescopic frame body, the adjusting clamping groove one comprising a fixed ball groove and a sliding groove, the sliding groove being located on one side of the fixed ball groove, a bearing two rotatably connected to the inner side wall of the first telescopic frame body, and a second telescopic rod slidably arranged in the first telescopic frame body.

[0010] Preferably, the limiting assembly comprises a compression cap one slidably connected to the mounting hole two, a compression spring three fixedly connected to the bottom of the compression cap one, the other end of the compression spring three being fixedly connected to the mounting hole two, a connecting column fixedly connected to the bottom of the compression cap one, a tooth column fixedly connected to the bottom of the connecting column, and a clamping sheet fixedly connected to the bottom of the tooth column.

[0011] Preferably, the two sides of the secondary telescopic rod are fixedly connected with slide rails two, the slide rails two are rollingly connected with bearings two, a hole is formed in the front end of the middle part of the secondary telescopic rod and is fixedly connected with a connecting block through bolts, a limiting clamping tooth is fixedly arranged at the rear of the hole, a damping shaft is fixedly installed on the inner wall of the front part of the connecting block, spring top beads two are arranged on one side of the damping shaft, and a backrest adjusting mechanism is rotatably arranged at the front part of the connecting block.

[0012] Preferably, an axle slot is formed in the outer wall of the upper part of the backrest adjusting mechanism and is fixedly connected with the damping shaft, a plurality of positioning ball grooves are fixedly formed in one side of the axle slot and are matched with the spring top beads two, the backrest adjusting mechanism is fixedly connected with slide rails three at the bottom, the slide rails three are slidingly connected with a backrest assembly at the bottom, horizontal grooves and vertical grooves are formed in the backrest adjusting mechanism, a top rod is slidingly connected in the horizontal groove, a top column is fixedly connected to the middle part of the top rod, a pressing cap two is fixedly connected to one end of the top rod, a sliding lock column is slidingly connected in the vertical groove, a compression spring four is fixedly connected to the top part of the sliding lock column, the other end of the compression spring four is fixedly connected with the inner wall of the vertical groove, an inclined slot is fixedly formed in the middle part of the sliding lock column and is matched with the top column, when the inclined slot is extruded by the top column, the sliding lock column is retracted upwards in the vertical groove, and a straight slot is fixedly formed in the inclined slot.

[0013] Preferably, the backrest assembly comprises a back cushion, the top part of the back cushion is fixedly connected with a mounting plate, a sliding frame is fixedly formed in the top part of the mounting plate and is slidingly connected with the slide rails three, adjusting clamping grooves two are fixedly formed in the sliding frame and are matched with the sliding lock column, when the sliding lock column is clamped into the adjusting clamping grooves two, the position of the backrest assembly relative to the backrest adjusting assembly is locked, and the top part of the mounting plate is fixedly connected with a pressing plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. By designing the limiting assembly, under the pushing of the compression spring three, the limiting assembly extends upwards, at this time, the tooth column is in contact with the limiting clamping tooth, the locking of the extension distance of the secondary telescopic rod in the primary telescopic frame body is realized, when the user presses the cap one downwards, the connecting column is matched with the limiting clamping tooth, and the extension distance of the secondary telescopic rod in the primary telescopic frame body can be adjusted at will.

[0016] 2. By designing the support angle locking assembly, the cover plate is pulled upwards, the angle of the shell cover plate and the shell bottom plate can be adjusted, so that the single driver motorcycle or the double-riding motorcycle can be adapted, after the angle is adjusted, the cover plate is lowered, the angle of the shell cover plate and the shell bottom plate can be locked, and the use experience is not affected.

[0017] 3. By setting a first telescopic locking assembly, under the push of the second compression spring, the spring top bead one is clamped into the fixed ball groove, and the locking of the first telescopic frame body and the shell bottom plate is completed, in the locked state, when the user is squeezed back to the waist rest due to external unexpected factors, the top bead in the spring top bead one overcomes the spring push force and retracts, thereby directly separating from the contact with the fixed ball groove and moving back, leaving a collapse space for the impact of the external environment, protecting the safety of the user; the user pushes the finger block inward, so that the spring top bead one is separated from the fixed ball groove and enters the sliding groove, at this time, the first telescopic frame body restores the sliding inside the shell bottom plate and the shell cover plate, and the extension distance of the first telescopic frame body is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a bottom structure schematic view of the utility model;

[0020] Figure 3 It is a structure schematic view of the utility model in the expanded state;

[0021] Figure 4 It is a structure schematic view of the support leg, the decorative cover plate and the support angle locking assembly;

[0022] Figure 5 It is an explosion structure schematic view of the support angle locking assembly;

[0023] Figure 6 It is a partial structure explosion drawing of the shell cover plate;

[0024] Figure 7 It is an explosion structure schematic view of the shell cover plate, the first telescopic frame body and the connecting block;

[0025] Figure 8 It is a bottom structure schematic view of the shell bottom plate, the decorative cover plate and the first telescopic frame body;

[0026] Figure 9 It is an internal structure schematic view of the shell bottom plate;

[0027] Figure 10 It is a structure schematic view of the first telescopic locking assembly;

[0028] Figure 11 It is an internal structure schematic view of the shell cover plate;

[0029] Figure 12 It is a structure schematic view of the first telescopic frame body and the second telescopic rod;

[0030] Figure 13 It is an internal structure schematic view of the first telescopic frame body and the second telescopic rod;

[0031] Figure 14 Figure 1 is a structural diagram of a limiting component;

[0032] Figure 15 Figure 2 is a structural diagram of a two-stage telescopic rod;

[0033] Figure 16 Figure 3 is a structural exploded diagram of a backrest component and a backrest adjusting mechanism;

[0034] Figure 17 Figure 4 is a structural diagram of a pressing plate and a mounting plate;

[0035] Figure 18 Figure 5 is a structural diagram of a bottom of the backrest adjusting mechanism;

[0036] Figure 19 Figure 6 is a structural diagram of an internal structure of the backrest adjusting mechanism;

[0037] Figure 20 Figure 7 is a structural diagram of a top rod and a sliding lock column.

[0038] In the figure, 1, leg; 101, screw hole one; 102, rotating hole one; 103, lock hole one; 2, shell cover plate; 201, rotating hole two; 202, mounting hole one; 203, baffle; 203A, rotating hole three; 203B, positioning protrusion; 204, positioning groove; 205, screw hole two; 206, limiting groove; 3, bracket angle locking component; 301, lifting plate; 302, lock rod; 303, compression spring one; 4, decorative cover plate; 401, mounting screw groove; 5, shell bottom plate; 501, bearing one; 502, mounting notch; 6, first-stage telescopic locking component; 601, sliding rod; 602, compression spring two; 603, adjusting sliding block; 603A, finger block; 604, spring top bead one; 605, fixed pressing strip; 7, first-stage telescopic frame body; 701, adjusting clamping groove one; 701A, fixed ball groove; 701B, sliding groove; 702, limiting protrusion; 703, mounting hole two; 704, sliding rail one; 705, bearing two; 8, limiting component; 801, compression cap one; 802, compression spring three; 803, tooth column; 804, connecting column; 805, clamping card; 9, two-stage telescopic rod; 901, limiting clamping tooth; 902, opening; 903, sliding rail two; 10, connecting block; 1001, damping shaft; 1002, spring top bead two; 11, backrest adjusting mechanism; 1101, shaft groove; 1102, positioning ball groove; 1103, sliding rail three; 1104, top rod; 1104A, top column; 1104B, compression cap two; 1105, sliding lock column; 1105A, inclined groove; 1105B, straight groove; 1106, compression spring four; 12, backrest component; 1201, pressing plate; 1202, mounting plate; 1202A, sliding frame; 1202B, adjusting clamping groove two; 1203, back cushion. DETAILED DESCRIPTION

[0039] The utility model will be further described below in combination with the drawings:

[0040] The orientation terms involved in the paragraphs of detailed description are only for the convenience of those skilled in the art to understand the technical solutions recorded in the application according to the visual orientation shown in the drawings. Except for explicit provisions and limitations, the terms "set", "install", "connect" and the like should be understood broadly, and for those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0041] As shown in Figure 1 , Figure 2 and Figure 3 , an adjustable waist support for vehicle includes a shell cover plate 2, the bottom of which is fixedly connected with a shell bottom plate 5, the shell cover plate 2 and the shell bottom plate 5 are connected through bolts, a first telescopic frame body 7 is slidably arranged inside the shell cover plate 2 and the shell bottom plate 5, a limiting groove 206 is fixedly provided on the top inner wall of the shell cover plate 2, a support angle locking assembly 3 is arranged on the inner side of the rear part of the shell cover plate 2, by designing the support angle locking assembly 3, the flap 301 can be pulled up, the angle of the shell cover plate 2 and the shell bottom plate 5 can be adjusted to adapt to the situation of single driving motorcycle or double riding motorcycle, after the angle is adjusted, the flap 301 can be put down to lock the angle of the shell cover plate 2 and the shell bottom plate 5, so as to avoid affecting the use experience. A rotating hole two 201 is fixedly provided on the rear part of the shell cover plate 2, a mounting hole one 202 is fixedly arranged on one side of the rotating hole two 201, and a positioning groove 204 is fixedly arranged on the front part of the rotating hole two 201.

[0042] As shown in Figure 4 and Figure 7 , the shell cover plate 2 is rotatably connected with a support leg 1 on both sides of the rear part, a screw hole one 101 is fixedly provided on the bottom of the support leg 1, the support leg 1 is fixed on the motorcycle body through the screw hole one 101, so as to complete the installation of the adjustable waist support for vehicle. A screw hole two 205 is fixedly provided on the top of the shell cover plate 2, a decorative cover plate 4 is arranged on the top of the shell cover plate 2, a mounting screw groove 401 is fixedly connected with the bottom of the decorative cover plate 4, the screw hole two 205 and the mounting screw groove 401 are installed together through bolts, so as to complete the installation of the decorative cover plate 4 on the top of the shell cover plate 2, which not only plays a decorative role, but also protects the shell cover plate 2.

[0043] The top of the supporting leg 1 is fixed with a rotating hole one 102, one side of the rotating hole one 102 is fixed with a lock hole one 103, the outer side of the supporting leg 1 is rotationally connected with a baffle 203, the front part of the baffle 203 is fixedly connected with a positioning protruding block 203B, the positioning protruding block 203B and a positioning groove 204 are clamped, so that the baffle 203 and the shell cover plate 2 sandwich the supporting leg 1, and the adjustable waist support for a vehicle can rotate around the supporting leg 1; the rear part of the baffle 203 is fixedly provided with a rotating hole three 203A, the rotating hole three 203A, the rotating hole two 201 and the rotating hole one 102 are rotationally connected with bolts, the rotating hole three 203A, the rotating hole two 201 and the rotating hole one 102 are placed on the same axis, the bolts are penetrated through them, so that the three are installed, and the shell cover plate 2 is firmly installed on the supporting leg 1. A plurality of groups of bearing ones 501 are rotationally connected on the inner side wall of the shell bottom plate 5, the bottom of the shell bottom plate 5 is fixedly provided with an installation slot 502, and a primary telescopic locking assembly 6 is fixedly installed in the installation slot 502;

[0044] By arranging the primary telescopic locking assembly 6, under the pushing of the compression spring two 602, the spring top bead one 604 is clamped into the fixed ball groove 701A, the locking of the primary telescopic frame body 7 and the shell bottom plate 5 is completed, in the locked state, when the user is pressed backward to the waist support due to external unexpected factors, the top bead in the spring top bead one 604 is retracted by overcoming the pushing force of the spring, thereby directly moving backward by separating from the contact with the fixed ball groove 701A, leaving a collapse space for the impact and extrusion of the external environment, and protecting the safety of the user; the user pushes the finger block 603A inward, so that the spring top bead one 604 is separated from the fixed ball groove 701A and enters the sliding groove 701B, at this time, the primary telescopic frame body 7 restores the sliding in the shell bottom plate 5 and the shell cover plate 2, and the extension distance of the primary telescopic frame body 7 is adjusted.

[0045] As shown in Figure 5 and Figure 6 , the support angle locking assembly 3 comprises a lifting plate 301, the lifting plate 301 is rotationally connected with a lock rod 302, the lock rod 302 is slidingly connected with the installation hole one 202, the lock rod 302 is fixedly connected with a compression spring one 303, and the other end of the compression spring one 303 is fixedly connected with the installation hole one 202. Under the pushing of the compression spring one 303, the lock rod 302 slides outward on the installation hole one 202 and is inserted into the lock hole one 103, the locking of the angle of the supporting leg 1 and the shell cover plate 2 is completed, the lifting plate 301 is pulled upward, the lifting plate 301 drives the lock rod 302 to move inward by overcoming the elastic force of the compression spring one 303, so that the lock rod 302 is separated from the lock hole one 103, and the lifting angle of the shell cover plate 2 can be continuously adjusted.

[0046] As shown in Figure 9 and Figure 10As shown, the primary telescopic locking assembly 6 includes a fixed pressing strip 605 fixedly connected with the shell bottom plate 5, a sliding rod 601 fixedly connected with the fixed pressing strip 605, an adjusting sliding block 603 slidingly connected with the sliding rod 601, a finger block 603A fixedly connected with the bottom of the adjusting sliding block 603, a plurality of spring top beads I 604 fixedly installed at the top of the adjusting sliding block 603, a compression spring II 602 fixedly connected with one side of the adjusting sliding block 603, and the other end of the compression spring II 602 fixedly connected with the fixed pressing strip 605. Under the pushing of the compression spring II 602, the adjusting sliding block 603 drives the spring top bead I 604 to be clamped into the fixed ball groove 701A, thereby locking the extension length of the primary telescopic frame 7. The user can pull the finger block 603A to drive the spring top bead I 604 to be separated from the fixed ball groove 701A, thereby restoring the continuous adjustment of the extension length of the primary telescopic frame 7.

[0047] As shown in Figure 8 and Figure 11 As shown, the primary telescopic frame 7 is fixedly connected with sliding rails I 704 on both sides of the outer wall, and the sliding rails I 704 are rollingly connected with the bearing I 501. By arranging the bearing I 501 and the sliding rails I 704, the rolling friction is formed between the primary telescopic frame 7 and the shell bottom plate 5, the friction between them is greatly reduced, the smoothness of the user pulling the primary telescopic frame 7 out of the shell cover plate 2 and the shell bottom plate 5 is improved, and the use experience is optimized. The primary telescopic frame 7 is fixedly connected with a limiting protrusion 702 at the top rear end, the limiting protrusion 702 is slidingly connected with the limiting recess 206, the cooperation of the two can prevent the primary telescopic frame 7 from being accidentally pulled out too much, so that the primary telescopic frame 7 is separated from the shell bottom plate 5, and the relative sliding range of the primary telescopic frame 7 and the shell bottom plate 5 is limited. The primary telescopic frame 7 is fixedly provided with a mounting hole II 703 at the top front end, and a limiting assembly 8 is arranged in the mounting hole II 703.

[0048] By designing the limiting assembly 8, under the pushing of the compression spring III 802, the limiting assembly 8 is extended upwards, at this time the tooth column 803 is in contact with the limiting tooth 901, thereby locking the extension distance of the secondary telescopic rod 9 in the primary telescopic frame 7. When the user presses the cap I 801 downwards, at this time the connecting column 804 cooperates with the limiting tooth 901, thereby allowing the extension distance of the secondary telescopic rod 9 in the primary telescopic frame 7 to be adjusted at will. The primary telescopic frame 7 is fixedly provided with an adjusting clamping groove I 701 at the bottom, the adjusting clamping groove I 701 includes a fixed ball groove 701A and a sliding groove 701B, the sliding groove 701B is located on one side of the fixed ball groove 701A, and each group of slots of the fixed ball groove 701A can lock the spring top bead I 604 when being in contact with the spring top bead I 604, thereby preventing relative sliding. When the spring top bead I 604 moves to the sliding groove 701B, the spring top bead I 604 is allowed to slide at will, thereby changing the extension length of the primary telescopic frame 7.

[0049] As shown in Figure 12 andFigure 13 As shown, the inner side wall of the first telescopic frame body 7 is rotatably connected with a bearing two 705, and the first telescopic frame body 7 is slidably provided with a second telescopic rod 9. The second telescopic rod 9 can extend the supporting distance of the waist rest, supplement and lengthen the extension distance of the first telescopic frame body 7, and can be retracted into the first telescopic frame body 7. While increasing the extension length of the waist rest, the initial volume of the adjustable waist rest in the retracted state is prevented from being too large, and the adjustable waist rest in the retracted state is prevented from occupying too much motorcycle seating space.

[0050] As shown in the drawings, Figure 14 The limiting assembly 8 includes a pressing cap one 801, which is slidably connected with the mounting hole two 703. The bottom of the pressing cap one 801 is fixedly connected with a compression spring three 802, and the other end of the compression spring three 802 is fixedly connected with the mounting hole two 703. The bottom of the pressing cap one 801 is fixedly connected with a connecting column 804, the bottom of the connecting column 804 is fixedly connected with a tooth column 803, and the bottom of the tooth column 803 is fixedly connected with a card 805. The card 805 is arranged at the bottom of the tooth column 803 to prevent the limiting assembly 8 from sliding out of the mounting hole two 703.

[0051] As shown in the drawings, Figure 15 The second telescopic rod 9 is fixedly connected with a sliding rail two 903 on both sides, and the sliding rail two 903 is rollingly connected with the bearing two 705. By arranging the sliding rail two 903 and the bearing two 705, the first telescopic frame body 7 and the second telescopic rod 9 are in rolling friction, the friction between them is reduced, and the smoothness during relative sliding is improved. The second telescopic rod 9 is fixedly provided with an opening 902 at the front end of the middle part, the opening 902 is fixedly connected with the connecting block 10 through bolts, and the rear part of the opening 902 is fixedly provided with a limiting clamping tooth 901. The limiting clamping tooth 901 has a through hole in the middle, and the width of the through hole is smaller than the width of the connecting column 804. When the connecting column 804 with a width greater than the width of the through hole is matched with the limiting clamping tooth 901, the second telescopic rod 9 can slide in the first telescopic frame body 7 at will. When the tooth column 803 with a width greater than the width of the through hole is matched with the limiting clamping tooth 901, the position of the second telescopic rod 9 in the first telescopic frame body 7 is locked. The damping shaft 1001 is fixedly installed on the inner wall of the front part of the connecting block 10, one side of the damping shaft 1001 is provided with a spring top bead two 1002, and the front part of the connecting block 10 is rotatably provided with a backrest adjusting mechanism 11. By arranging the backrest adjusting mechanism 11, the sliding lock column 1105 is extended out of the vertical slot under the pushing of the compression spring four 1106, and is inserted into the adjusting clamping groove two 1202B, so that the position of the backrest assembly 12 on the backrest adjusting mechanism 11 is locked. When it is necessary to adjust the positions of the two, the sliding lock column 1105 can be separated from the adjusting clamping groove two 1202B by pressing the top rod 1104, so as to slide and adjust the two.

[0052] As shown in the drawings, Figure 18 , Figure 19 and Figure 20As shown, the upper outer wall of the backrest adjusting mechanism 11 is fixedly provided with a shaft slot 1101, and the shaft slot 1101 is fixedly connected with the damping shaft 1001. The rotation of the backrest adjusting mechanism 11 on the connecting block 10 is damped, so as to facilitate the user to adjust the backrest assembly 12. A plurality of positioning ball grooves 1102 are fixedly provided on one side of the shaft slot 1101. The positioning ball grooves 1102 are matched with the spring top bead two 1002. After the spring top bead two 1002 is clamped into the positioning ball groove 1102, the angle between the connecting block 10 and the backrest adjusting mechanism 11 can be limited, so as to avoid the arbitrary rotation of the two and affect the use experience of the waist rest. The backrest adjusting mechanism 11 is fixedly connected with a sliding rail three 1103 at the bottom. The sliding rail three 1103 is slidingly connected with the backrest assembly 12 at the bottom. A horizontal groove and a vertical groove are formed in the backrest adjusting mechanism 11. A top rod 1104 is slidingly connected in the horizontal groove. The top rod 1104 is fixedly connected with a top column 1104A at the middle. The top rod 1104 is fixedly connected with a pressure cap two 1104B at one end. A sliding lock column 1105 is slidingly connected in the vertical groove. The sliding lock column 1105 is fixedly connected with a compression spring four 1106 at the top. The other end of the compression spring four 1106 is fixedly connected with the inner wall of the vertical groove. A slant groove 1105A is fixedly formed in the middle of the sliding lock column 1105. The slant groove 1105A is matched with the top column 1104A. When the slant groove 1105A is extruded by the top column 1104A, the sliding lock column 1105 is retracted upward in the vertical groove. A straight groove 1105B is fixedly formed in the slant groove 1105A.

[0053] As shown in Figure 16 and Figure 17 The backrest assembly 12 comprises a back cushion 1203. The back cushion 1203 is fixedly connected with a mounting plate 1202 at the top. The mounting plate 1202 is fixedly provided with a sliding frame 1202A at the top. The sliding frame 1202A is slidingly connected with the sliding rail three 1103. The backrest assembly 12 can slide relative to the backrest adjusting mechanism 11 to adjust the height of the supporting part for the user. The sliding frame 1202A is fixedly provided with an adjusting clamping groove two 1202B. The adjusting clamping groove two 1202B is matched with the sliding lock column 1105. When the sliding lock column 1105 is clamped into the adjusting clamping groove two 1202B, the position of the backrest assembly 12 relative to the backrest adjusting mechanism 11 is locked. The mounting plate 1202 is fixedly connected with a pressing plate 1201 at the top. The backrest adjusting mechanism 11 and the sliding frame 1202A are kept in contact by arranging the pressing plate 1201, so as to avoid the separation of the two.

[0054] Use process:

[0055] 1. Use the bolt to install the supporting leg 1 to the motorcycle body. Pull up the flap 301. Unlock the support angle locking assembly 3. Press down the shell cover plate 2 and the shell bottom plate 5 to the horizontal angle. Loosen the flap 301. The support angle locking assembly 3 locks the current angle of the shell cover plate 2 and the shell bottom plate 5.

[0056] 2, push the finger block 603A inward, the first telescopic locking assembly 6 is unlocked, the first telescopic frame body 7 is pulled out, then the finger block 603A is loosened, and the length of the first telescopic frame body 7 extending relative to the shell bottom plate 5 is fixed;

[0057] 3, press the cap one 801, the second telescopic rod 9 is pulled out from the first telescopic frame body 7 to the appropriate position, the cap one 801 is loosened, and the length of the second telescopic rod 9 extending relative to the first telescopic frame body 7 is locked;

[0058] 4, the backrest adjusting mechanism 11 and the backrest assembly 12 are rotated to the driver, the back cushion 1203 can be pressed against the driver, the cap two 1104B is pressed, the position of the back cushion 1203 relative to the backrest adjusting mechanism 11 is adjusted and moved, the back cushion 1203 is pressed against the waist position of the driver, the cap two 1104B is loosened, the position of the back cushion 1203 relative to the backrest adjusting mechanism 11 is locked, and the adjustment is completed.

[0059] The utility model discloses a two-stage telescopic rod 9 can extend the support distance of waist support, supplement the extension distance of the first telescopic frame body 7, and the two-stage telescopic rod 9 can be retracted into the first telescopic frame body 7, the extension length of the waist support is increased, and the initial volume of the adjustable waist support of the motorcycle in the retracted state is prevented from being too large, and the motorcycle riding space is prevented from being occupied too much in the retracted state, the backrest adjusting mechanism 11 is arranged, the sliding lock column 1105 extends the vertical groove under the push of the compression spring four 1106, and is inserted into the adjusting clamping groove two 1202B, so that the position of the backrest assembly 12 on the backrest adjusting mechanism 11 is locked, when the position of the two is adjusted, the sliding lock column 1105 can be separated from the adjusting clamping groove two 1202B by pressing the top rod 1104, and the two are adjusted.

Claims

1. An adjustable lumbar support for a vehicle, characterized by: The utility model provides a shell cover plate is fixedly connected with the shell bottom plate in the bottom, and the shell cover plate and the shell bottom plate are slidably provided with a primary telescopic frame in the inside, and the inside wall of the top of shell cover plate is fixedly provided with a limiting groove, and the inside of the rear part of shell cover plate is provided with a support angle locking assembly, and the rear part of shell cover plate is fixedly provided with a rotating hole two, and one side of rotating hole two is fixedly provided with a mounting hole one, and the front part of rotating hole two is fixedly provided with a positioning recess, and the both sides of the rear part of shell cover plate are rotatably connected with a supporting leg, and the bottom of supporting leg is fixedly provided with a screw hole one, and the top of supporting leg is fixedly provided with a rotating hole one, and one side of rotating hole one is fixedly provided with a lock hole one, and the outside of supporting leg is rotatably connected with a baffle, and the front part of baffle is fixedly connected with a positioning lug, and the positioning lug and the positioning recess are engaged, and the rear part of baffle is fixedly provided with a rotating hole three, and rotating hole three, rotating hole two and rotating hole one are rotatably connected with a bolt, and a plurality of bearings one are rotatably connected on the inside side wall of shell bottom plate, and the bottom of shell bottom plate is fixedly provided with a mounting slot, and a primary telescopic locking assembly is fixedly installed in the mounting slot.

2. The adjustable lumbar support for a vehicle as defined in claim 1, wherein: The support angle locking assembly comprises a lifting plate, a locking rod rotatably connected to the lifting plate, the locking rod slidably connected to the mounting hole one, a compression spring one fixedly connected to the locking rod, and the other end of the compression spring one fixedly connected to the mounting hole one.

3. The adjustable lumbar support for a vehicle of claim 1, wherein: The primary telescopic locking assembly comprises a fixed pressing strip fixedly connected to the shell bottom plate, a sliding rod fixedly connected to the fixed pressing strip, an adjusting sliding block slidably connected to the sliding rod, a finger block fixedly connected to the bottom of the adjusting sliding block, a plurality of spring top beads one fixedly installed on the top of the adjusting sliding block, a compression spring two fixedly connected to one side of the adjusting sliding block, and the other end of the compression spring two fixedly connected to the fixed pressing strip.

4. The adjustable lumbar support for a vehicle of claim 1, wherein: The outer wall of the primary telescopic frame is fixedly connected with a sliding rail one on both sides, the sliding rail one is rollingly connected with the bearing one, the rear end of the top of the primary telescopic frame is fixedly connected with a limiting lug, the limiting lug is slidably connected with the limiting groove, the front end of the top of the primary telescopic frame is fixedly provided with a mounting hole two, the mounting hole two is provided with a limiting assembly, the bottom of the primary telescopic frame is fixedly provided with an adjusting clamping groove one, the adjusting clamping groove one comprises a fixed ball groove and a sliding groove, the sliding groove is located on one side of the fixed ball groove, the inside side wall of the primary telescopic frame is rotatably connected with a bearing two, and the primary telescopic frame is slidably provided with a secondary telescopic rod.

5. The adjustable lumbar support for a vehicle of claim 4, wherein: The limiting assembly comprises a compression cap one slidably connected to the mounting hole two, a compression spring three fixedly connected to the bottom of the compression cap one, the other end of the compression spring three fixedly connected to the mounting hole two, a connecting column fixedly connected to the bottom of the compression cap one, a tooth column fixedly connected to the bottom of the connecting column, and a card fixedly connected to the bottom of the tooth column.

6. The adjustable lumbar support for a vehicle of claim 4, wherein: The secondary telescopic rod is fixedly connected with a sliding rail two on both sides, the sliding rail two is rollingly connected with the bearing two, the middle part of the front end of the secondary telescopic rod is fixedly provided with an opening, the opening is fixedly connected with a connecting block through a bolt, the rear part of the opening is fixedly provided with a limiting clamping tooth, a damping shaft is fixedly installed on the inner wall of the front part of the connecting block, the damping shaft is provided with a spring top bead two on one side, and the front part of the connecting block is rotatably provided with a backrest adjusting mechanism.

7. The adjustable lumbar support for a vehicle of claim 6, wherein: The upper outer wall of the backrest adjusting mechanism is fixedly provided with an axle slot, the axle slot is fixedly connected with a damping shaft, a plurality of positioning ball slots are fixedly provided on one side of the axle slot, the positioning ball slots are matched with the spring top beads, the bottom of the backrest adjusting mechanism is fixedly connected with a sliding rail three, the bottom of the sliding rail three is slidingly connected with a backrest assembly, a horizontal slot and a vertical slot are provided in the backrest adjusting mechanism, a top rod is slidingly connected in the horizontal slot, a top column is fixedly connected to the middle of the top rod, a pressing cap two is fixedly connected to one end of the top rod, a sliding lock column is slidingly connected in the vertical slot, a pressing spring four is fixedly connected to the top of the sliding lock column, the other end of the pressing spring four is fixedly connected with the inner wall of the vertical slot, an inclined slot is fixedly provided in the middle of the sliding lock column, the inclined slot is matched with the top column, when the inclined slot is extruded by the top column, the sliding lock column is retracted into the vertical slot, a straight slot is fixedly provided on the inclined slot.

8. The adjustable lumbar support for a vehicle of claim 7, wherein: The backrest assembly comprises a back cushion, the top of the back cushion is fixedly connected with a mounting plate, the top of the mounting plate is fixedly provided with a sliding frame, the sliding frame is slidingly connected with the sliding rail three, an adjusting clamping groove two is fixedly provided in the sliding frame, the adjusting clamping groove two is matched with the sliding lock column, when the sliding lock column is clamped into the adjusting clamping groove two, the position of the backrest assembly relative to the backrest adjusting assembly is locked, and the top of the mounting plate is fixedly connected with a pressing plate.

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