Multifunctional folding lying plate

Abstract

The utility model relates to the technical field of automobile repair lying plates, and particularly discloses a multifunctional folding lying plate which comprises a combined frame, and rolling wheels are arranged below the combined frame; the combined frame comprises a first frame, a second frame and a third frame which are rotationally connected in sequence, and cushions mounted on the frames; a first locking mechanism is arranged between the first frame and the second frame, and the first locking mechanism is used for locking the first frame and the second frame to form at least three different relative angles; a second locking mechanism is arranged between the second frame and the third frame; the second locking mechanism is used for locking the second frame and the third frame to at least form relative straightness; viewed from the side face of the combined frame, the combined frame can form three different states of a basic L shape, a basic Z shape and a basic I shape.

Description

Technical Field

[0001] This application relates to the technical field of automotive repair reclining boards, and in particular, to a multifunctional folding reclining board. Background Art

[0002] During the process of automobile repair, it is necessary to enter the bottom of the vehicle body for repair. The common repair method is for the repairman to lie under the vehicle chassis. Both entering and exiting are not convenient and fast enough, and the use effect is not good, making it impossible to achieve efficient repair. Most of the existing ones are to directly lie under the vehicle chassis, which easily dirties the repairman's clothes and is inconvenient to get in and out.

[0003] Based on this, the Chinese patent with the publication number CN212044684U proposes a foldable multifunctional lying vehicle to provide a movable reclining board and a state that can be switched to a sitting stool, providing multi-purpose repair operations.

[0004] However, in the above-mentioned method, there are only two usage modes, which are relatively single and have low functionality. At the same time, when locking in different modes, a single-sided plug-in fixing pin is used for locking, and the clamping stability is lacking. Moreover, there is no good fixing structure between the auxiliary frame and the movable rod. When the product needs to be vertically retracted and extended in the non-use state, the auxiliary frame will not be able to remain upright with the whole, which will occupy more space. Utility Model Content

[0005] Based on this, this application provides a multifunctional folding reclining board to effectively improve the existing product and thus solve the above technical problems.

[0006] The technical solution adopted by this application to solve its technical problems is: a multifunctional folding reclining board, including a combined frame, and rollers are arranged below the combined frame;

[0007] The combined frame includes a first frame, a second frame, and a third frame that are sequentially rotatably connected to each other, and seat cushions are installed on each frame;

[0008] A first locking mechanism is arranged between the first frame and the second frame, and the first locking mechanism is used to lock the first frame and the second frame to form at least three different relative angles;

[0009] A second locking mechanism is arranged between the second frame and the third frame, and the second locking mechanism is used to lock the second frame and the third frame to be at least relatively flat;

[0010] Viewed from the side of the combined frame, the combined frame can form three different states: a basic L shape, a basic Z shape, and a basic I shape. The L shape corresponds to the usage mode of a backrest stool, the Z shape corresponds to the usage mode of a sitting stool, and the I shape corresponds to the usage mode of a reclining board. At the same time, the I shape can also be used for vertical storage in the non-use state.

[0011] In one embodiment, the first locking mechanism includes: two locking pieces disposed on the left and right inner walls of the first frame, with at least three locking holes at different positions provided on the locking pieces; a positioning pin horizontally fixed on the second frame; two movable pins sleeved on the positioning pin and capable of being inserted into different locking holes; an intermediate spring placed between the two movable pins to apply an outward acting force on the movable pins; and a driving block installed at the inner end of the movable pin for driving the movable pin to move inwards to disengage from the locking with the locking hole.

[0012] In one embodiment, the first locking mechanism includes: two locking pieces disposed on the left and right inner walls of the second frame, with at least three locking holes at different positions provided on the locking pieces; a positioning shaft horizontally fixed on the first frame; two movable pins sleeved on the positioning shaft and capable of being inserted into different locking holes; an intermediate spring placed between the two movable pins to apply an outward acting force on the movable pins; and a driving block installed at the inner end of the movable pin for driving the movable pin to move inwards to disengage from the locking with the locking hole.

[0013] In one embodiment, the movable pin includes a sleeve section and a pin head section, the sleeve section and the pin head section are respectively connected to two sides of a limiting piece and form a misalignment with different axes, and the limiting piece abuts against the inner wall of the second frame.

[0014] In one embodiment, the second frame includes limiting boxes provided at the lower edges on both sides thereof, and the pin head section of the movable pin penetrates through the limiting box and protrudes outwards.

[0015] In one embodiment, the first locking mechanism includes: two locking pieces disposed on the left and right inner walls of the first frame, with at least three locking grooves at different positions provided on the locking pieces; a locking shaft horizontally installed on the second frame and capable of moving; and a locking spring applying a force on the locking shaft to move it close to the rotation axis of the first frame and the second frame and be clamped in the locking groove.

[0016] In one embodiment, the first locking mechanism includes: two locking pieces disposed on the left and right inner walls of the second frame, with at least three locking grooves at different positions provided on the locking pieces; a locking shaft horizontally installed on the first frame and capable of moving; and a locking spring applying a force on the locking shaft to move it close to the rotation axis of the first frame and the second frame and be clamped in the locking groove.

[0017] In one embodiment, limit boxes are provided at the lower edges on both sides of the second frame. Both ends of the locking shaft are inserted into the limit boxes and can move within the limit slots of the limit boxes. The locking spring is a tension spring connected inside the limit box, and the other end of the tension spring is hooked on the locking shaft.

[0018] In one embodiment, the second locking mechanism includes a second bolt that passes through one of the second frame or the third frame and locks it to the other.

[0019] In one embodiment, the second bolt is provided on the cross bar of the third frame and remains substantially parallel to the extending direction of the side bar of the third frame. At least one end of the side bar of the second frame is provided with a cylindrical jack, and the axis of the jack remains substantially parallel to the extending direction of the side bar of the second frame. When the second bolt is inserted into the cylindrical jack, the second frame and the third frame remain relatively flat.

[0020] The beneficial effects of the present application are as follows: Based on the existing products, first, the overall structure can be rotated and locked to form a substantially L shape, thereby adding a usage mode of a backrest stool. Second, it can also be locked into a substantially I shape to correspond to the lying board mode and the vertical storage in the non-use state. Third, two different types of first locking mechanisms are adopted to quickly lock and unlock both sides of the combined frame, improving the convenience and stability of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is the overall structural schematic diagram of the lying board mode of the present application.

[0023] Figure 2 is the overall structural schematic diagram of the sitting stool mode of the present application.

[0024] Figure 3 is the overall structural schematic diagram of the backrest stool mode of the present application.

[0025] Figure 4 is the frame structural schematic diagram of the lying board mode of the present application.

[0026] Figure 5 is the frame structural schematic diagram of the sitting stool mode of the present application.

[0027] Figure 6 is the frame structural schematic diagram of the backrest stool mode of the present application.

[0028] Figure 7 is the Figure 6 enlarged schematic diagram at position B of the present application.

[0029] Figure 8 It is a schematic structural diagram of the second embodiment of the first locking mechanism of the present application.

[0030] Figure 9 It is a partial exploded view of the structure of the second embodiment of the first locking mechanism of the present application.

[0031] In the figure, A. combined frame, 1. first frame, 2. second frame, 3. third frame, 4. seat cushion;

[0032] 5. first locking mechanism, 51. locking piece, 511. locking hole, 52. positioning pin, 53. movable bolt, 531. sleeve section, 532. pin head section, 533. limiting piece, 54. intermediate spring, 55. driving block, 56. limiting box;

[0033] 5a. first locking mechanism, 51a. locking piece, 511a. locking groove, 52a. locking shaft, 53a. limiting box, 531a. limiting groove, 54a. tension spring;

[0034] 6. second locking mechanism, 61. second bolt, 62. cylindrical jack, 7. roller. Detailed implementation manner

[0035] Refer to Figures 1-9 As shown, the detailed implementation manner of the present application is as follows: A multifunctional folding reclining board includes a combined frame A, and the combined frame A includes a first frame 1, a second frame 2, and a third frame 3 that are sequentially rotatably connected, and a seat cushion 4 installed on each frame. Specifically, the main body of the first frame 1 is composed of a U-shaped rod and a T-shaped rod connected, the main body of the second frame 2 is composed of two side rods and two cross rods connected to form a well shape, and the main body of the third frame 3 is composed of a U-shaped rod and a cross rod connected; both sides of the U-shaped rods of the first frame 1 and the third frame 3 are pivotally connected to the two side rods of the second frame 2 through rotating shafts, so that the three can form relative rotations with each other.

[0036] Among them, two rollers 7 are provided on both the left and right sides of the U-shaped rod of the first frame 1, and one roller 7 is provided on both the left and right sides of the U-shaped rod of the third frame 3.

[0037] A first locking mechanism (5, 5a) is provided between the first frame 1 and the second frame 2, and the first locking mechanism (5, 5a) is used to lock at least three different relative angles that can be formed between the first frame 1 and the second frame 2;

[0038] A second locking mechanism 6 is provided between the second frame 2 and the third frame 3, and the second locking mechanism 6 is used to lock the second frame 2 and the third frame 3 to form at least relatively flat;

[0039] With the above-mentioned first locking mechanism and second locking mechanism, the combined frame A can form at least three different usage states after rotating and locking with each other.

[0040] As Figure 1 and 4 shown, from the side view of the combined frame A, the first frame 1, the second frame 2, and the third frame 3 maintain a basically straight state, presenting a basically I-shaped structure, which corresponds to the usage mode of the lying board. If the lying board in this state is erected, it can be used as a vertical storage state when not in use.

[0041] As Figure 2 and 5 shown, from the side view of the combined frame A, the first frame 1 is placed flat on the ground, the second frame 2 forms an angle less than 90 degrees with the first frame 1, and the third frame 3 is supported on the upper crossbar of the second frame 2 and remains basically parallel to the first frame 1, thus presenting a basically Z-shaped structure, which corresponds to the usage mode of the sitting stool.

[0042] As Figure 3 and 6 shown, from the side view of the combined frame A, the first frame 1 is still placed flat on the ground, the second frame 2 forms an angle greater than 90 degrees with the first frame 1, and at the same time, the third frame 3 and the second frame 2 remain straight with each other under the action of the second locking mechanism 6, thus presenting a basically L-shaped structure, which corresponds to the usage mode of the backrest stool.

[0043] For the first locking mechanism, the technical solution of the present application provides at least the following two embodiments.

[0044] The first embodiment of the first locking mechanism: It includes two locking pieces 51, a positioning pin 52, two movable pins 53, an intermediate spring 54, and two driving blocks 55.

[0045] Among them, at least three locking holes 511 are provided on the two locking pieces 51, and the two locking pieces 51 are respectively fixedly installed on the inner walls on both sides of the U-shaped rod of the first frame 1; limit boxes 56 are provided on the lower edges of the two side rods of the second frame 2, and the limit boxes 56 provide two mounting holes, and both ends of the positioning pin 52 are placed in one of the mounting holes; both of the two movable bolts 53 include a sleeve section 531 and a pin head section 532, the sleeve section 531 and the pin head section 532 are respectively connected to both sides of a limiting piece 533 and form a dislocation with different axes, the limiting piece 533 abuts against the side wall of the limit box 56, the sleeve sections 531 of the two movable bolts 53 are respectively sleeved on both ends of the positioning pin 52 and can slide, and the pin head sections 532 of the movable bolts 53 penetrate through the other mounting hole of the limit box 56 to cooperate with different locking holes 511 on the locking piece 51; an intermediate spring 54 is also sleeved at the middle position of the positioning pin 52, that is, the intermediate spring 54 is installed between the two movable bolts 53, and an outward acting force is applied to the movable bolts 53 through the intermediate spring 54.

[0046] For the convenience of operation, opposite driving blocks 55 are respectively installed at the inner ends of the movable bolts 53. When unlocking is required, the two driving blocks 55 can be driven to approach each other by the thumb and index finger, compressing the intermediate spring 54, and at the same time driving the pin head sections 532 of the movable bolts 53 to disengage from the locking of the locking piece 51. When the first frame 1 and the second frame 2 are rotated to the required angle, the control of the driving blocks 55 is released, and under the action of the intermediate spring 54, the movable bolts 53 will be locked on the locking holes 511 of the locking piece 51 again.

[0047] As another installation method of the first locking mechanism in Embodiment 1, the locking piece 51 can also be installed on the inner side of the second frame 2, and components such as the positioning pin 52, the movable bolt 53, the limit box 56, and the intermediate spring 54 are installed on the first frame 1. In this way, it does not affect the normal rotation and locking of the combined frame A.

[0048] Such as Figures 8-9As shown in the figure, Embodiment 2 of the first locking mechanism will be further elaborated: It includes two locking pieces 51a, which are respectively connected to the inner walls on both sides of the U-shaped rod of the first frame 1. The locking pieces 51a provide at least three locking slots 511a at different positions; it also includes a locking shaft 52a, which is horizontally installed on the second frame 2 and can slide within a set path; limit boxes 53a are provided at the lower edges of the two side rods of the second frame 2. Both ends of the locking shaft 52a pass through the limit boxes 53a and can move within the limit slots 531a of the limit boxes 53a; at the same time, a tension spring 54a is arranged inside the limit box 53a, and the other end of the tension spring 54a is hooked on the locking shaft 52a. The tension spring 54a exerts a force on the locking shaft 52a to move it closer to the rotation axis L of the first frame 1 and the second frame 2 and lock it on the locking slot 511a, that is, pull the locking shaft 52a towards the rotation point of the locking piece 51a, and then it can be locked on different locking slots 511a.

[0049] When in use, hold the locking shaft 52a with one hand and pull it to disengage both ends of the locking shaft 52a from the locking piece 51a. When the first frame 1 and the second frame 2 are rotated to the required angle, release the control of the locking shaft 52a. Under the action of the tension spring 54a, both ends of the locking shaft 52a will be locked on the locking slot 511a of the locking piece 51a again, thus completing the locking.

[0050] As another installation method of the first locking mechanism in Embodiment 2, the locking piece 51a can also be installed on the inner side of the second frame 2, and components such as the locking shaft 52a, the limit box 53a, and the tension spring 54a can be installed on the first frame 1. In this way, it does not affect the normal rotation and locking of the combined frame A.

[0051] For the second locking mechanism, in this embodiment, the second locking mechanism 6 includes a second bolt that passes through one of the second frame 2 or the third frame 3 and locks it on the other. More specifically, the second bolt 61 is arranged on the cross bar of the third frame 3 and is kept substantially parallel to the extension direction of the side rod of the third frame 3; at least one end of the side rod of the second frame 2 is provided with a cylindrical socket 62, and the axis of the socket 62 is kept substantially parallel to the extension direction of the side rod of the second frame; when the second bolt 61 is inserted into the cylindrical socket 62, the second frame 2 and the third frame 3 remain relatively straight.

[0052] The above is only the preferred embodiment of the present application, and does not impose any form of limitation on the present application. Without departing from the technical solution of the present application, simple modifications, equivalent changes or decorations made all fall within the protection scope of the present application.

Claims

1. A multifunctional folding reclining board, comprising a combined frame, and rollers are arranged below the combined frame; The combined frame includes a first frame, a second frame, and a third frame that are sequentially rotatably connected to each other, and seat cushions are installed on each frame; It is characterized in that A first locking mechanism is arranged between the first frame and the second frame, and the first locking mechanism is used to lock the first frame and the second frame to form at least three different relative angles. The first angle is a substantially flat angle, the second angle is an acute angle, and the third angle is a substantially right angle; The first locking mechanism includes: Two locking pieces are arranged on the inner walls of the left and right sides of the first frame, and at least three locking holes at different positions are arranged on the locking pieces; A positioning pin is horizontally fixed on the second frame; Two movable bolts are sleeved on the positioning pin and can be inserted into different locking holes; An intermediate spring is placed between the two movable bolts to apply an outward acting force to the movable bolts; A driving block is installed at the inner end of the movable bolt to drive the movable bolt to move inward to disengage from the locking with the locking hole; A second locking mechanism is arranged between the second frame and the third frame, and the second locking mechanism is used to lock the second frame and the third frame to be relatively straight; the second locking mechanism includes a second bolt that passes through one of the second frame or the third frame and locks it to the other; the second bolt is arranged on the cross bar of the third frame and remains substantially parallel to the extending direction of the side bar of the third frame; at least one end of the side bar of the second frame is provided with a cylindrical socket, and the axis of the socket remains substantially parallel to the extending direction of the side bar of the second frame; when the second bolt is inserted into the cylindrical socket, the second frame and the third frame remain relatively straight; Viewed from the side of the combined frame, the combined frame can form three different states: a substantially L shape, a substantially Z shape, and a substantially I shape; wherein the substantially I shape corresponds to the first frame and the second frame forming a substantially flat angle, and the second frame and the third frame remaining relatively straight; the substantially Z shape corresponds to the first frame and the second frame forming an acute angle, the second locking mechanism not locking the second frame and the third frame, and the third frame and the first frame remaining relatively parallel; the substantially L shape corresponds to the first frame and the second frame forming a substantially right angle, and the second frame and the third frame remaining relatively straight.

2. The multifunctional folding reclining board according to claim 1, characterized in that, The first locking mechanism is replaced with the following structure, which includes: Two locking pieces are arranged on the inner walls of the left and right sides of the second frame, and at least three locking holes at different positions are arranged on the locking pieces; A positioning shaft is horizontally fixed on the first frame; Two movable bolts are sleeved on the positioning shaft and can be inserted into different locking holes; An intermediate spring is placed between the two movable bolts to apply an outward acting force to the movable bolts; A driving block is installed at the inner end of the movable bolt to drive the movable bolt to move inward to disengage from the locking with the locking hole.

3. A multifunctional folding reclining board according to claim 1, characterized in that, The movable bolt includes a sleeve section and a pin head section. The sleeve section and the pin head section are respectively connected to both sides of a limiting piece and form a dislocation with different axes. The limiting piece abuts against the inner wall of the second frame.

4. The multifunctional folding lying board according to claim 3, characterized in that, The second frame includes limiting boxes provided at the lower edges on both sides thereof. The pin head section of the movable bolt penetrates through the limiting box and protrudes outwards.

5. A multifunctional folding reclining board according to claim 1, characterized in that, The first locking mechanism is replaced with the following structure, which includes: Two locking pieces are provided on the inner walls of the left and right sides of the first frame. At least three locking grooves are provided at different positions on the locking pieces; A locking shaft is horizontally installed on the second frame and is movable; A locking spring applies a force to the locking shaft to move it close to the rotation axis of the first frame and the second frame and engage with the locking groove.

6. The multifunctional folding reclining board according to claim 1, wherein The first locking mechanism is replaced with the following structure, which includes: Two locking pieces are provided on the inner walls of the left and right sides of the second frame. At least three locking grooves are provided at different positions on the locking pieces; A locking shaft is horizontally installed on the first frame and is movable; A locking spring applies a force to the locking shaft to move it close to the rotation axis of the first frame and the second frame and engage with the locking groove.

7. A multifunctional folding reclining board according to claim 5, characterized in that, Limiting boxes are provided at the lower edges on both sides of the second frame. Both ends of the locking shaft are inserted into the limiting boxes and can move in the limiting grooves of the limiting boxes; the locking spring is a tension spring connected inside the limiting box, and the other end of the tension spring is hooked on the locking shaft.

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