Turnover locking mechanism and seat

Abstract

The utility model discloses an overturn locking mechanism and seat relates to the relevant technical field of overturn mechanism, including connecting shaft and be used for the locking plate of connecting shaft rotation, connecting shaft is rotatingly connected with lantern ring, one side wall of locking plate is equipped with the locking mouth of vertical run-through, lantern ring passes through the locking mouth, and the locking plate is equipped with the locking mouth. The lantern ring is provided with a protruding block connected with the locking opening in an abutting mode. The locking plate is connected with an overturning device used for resetting, a driving device used for controlling rotation is fixedly connected into the lantern ring, and the driving device comprises a traction rope fixedly connected with the lantern ring. The sleeve ring, the locking plate and the clamping block on the connecting shaft are matched, the locking effect of the mechanism is achieved, overturning movement of the seat cushion is facilitated, the balance of the sleeve ring, the locking plate and the movable torsion spring and the resetting effect after unlocking are maintained through the resetting torsion spring and the movable torsion spring, operation is convenient and fast, rapid unlocking can be conducted through the traction rope, rapid deformation is achieved, and the service life of the seat cushion is prolonged. And the carrying is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a turnover structure related technical field especially, it relates to a turnover locking mechanism and seat. BACKGROUND

[0002] In the meeting room, the report hall and so on place, because its site size is limited, if using conventional desk and chair, the number of people that can accommodate is less, if using only conventional chair, it is inconvenient when writing record, and conventional seat occupies space when storage.

[0003] The existing part of seat starts to adjust the rotation direction, makes the whole cushion position to be inclined, thereby not influencing the overall change, can make the cushion become the state of convenient storage.

[0004] But these inclined turnover cushion is complicated when changing state, needs to consume more time when the user stores. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a turnover locking mechanism and seat, solve the problem that unlocking locking is complicated when the cushion is stored and rotated, and the efficiency is low.

[0006] TECHNICAL SCHEME

[0007] A turnover locking mechanism, including connecting shaft and the locking plate for now the connecting shaft rotation, the connecting shaft is rotationally connected with the eye ring, the side wall of locking plate is equipped with the locking mouth that penetrates up and down, the eye ring passes through the locking mouth, the eye ring is equipped with the protruding piece of and the locking mouth abutment, the locking plate is connected with the turnover device for reset, the eye ring is fixedly connected with the drive device for control rotation in, the drive device includes and the traction rope of the eye ring fixed connection, when the eye ring rotates, the eye ring extrudes the locking plate, the locking plate and the connecting shaft separate.

[0008] As preferred, the connecting shaft is fixedly connected with the clamping block that the locking plate abuts.

[0009] As preferred, the traction rope is fixedly connected around the connecting shaft and the eye ring, and the traction rope is connected with the traction handle.

[0010] As preferred, the turnover device includes the pivot, the pivot is fixedly connected with the locking plate, and the pivot is provided with the movable torsional spring.

[0011] As preferred, the eye ring is connected with the reset torsional spring, one end of the reset torsional spring is connected with the eye ring, the other end of the reset torsional spring is connected with the locking plate, and the elastic force of the reset torsional spring is less than the elastic force of the movable torsional spring.

[0012] A seat, comprising a seat cushion and any one of the turnover locking mechanisms described above, a shell connected below the seat cushion, a movable cavity with an upward opening provided in the shell, the turnover locking mechanism and the movable cavity being connected, the connecting shaft rotating and penetrating the shell, and a support fixedly connected to the connecting shaft outside the shell.

[0013] Preferably, a cover plate is connected to the opening of the shell, the rotating shaft and the cover plate are rotationally connected, one end of the movable torsional spring abuts against the locking plate, and the other end of the movable torsional spring abuts against the cover plate.

[0014] Preferably, a fixed block is fixedly connected to the lower end of the cover plate, and the locking handle and the fixed block are slidingly connected.

[0015] Beneficial effects: the locking effect of the mechanism is achieved through cooperation of the sleeve ring, the locking plate and the clamping block on the connecting shaft, the turnover movement of the seat cushion is facilitated, the balance of the three and the resetting effect after unlocking are maintained through the reset torsional spring and the movable torsional spring, the operation is convenient, and the effect of quick deformation and convenient carrying is achieved through the quick unlocking of the traction rope. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic view of the utility model;

[0017] Figure 2 is the bottom view structure schematic view of the utility model;

[0018] Figure 3 is the turnover locking mechanism structure schematic view of the utility model;

[0019] Figure 4 is the movable cavity internal structure schematic view of the utility model;

[0020] Figure 5 is the locking plate bottom view structure schematic view of the utility model;

[0021] Figure 6 is the sleeve ring side view structure schematic view of the utility model.

[0022] Reference signs: 11, seat cushion; 12, support; 13, connecting shaft; 131, clamping block; 14, turnover mechanism; 21, shell; 22, cover plate; 23, opening; 24, movable cavity; 31, locking handle; 32, fixed block; 33, sleeve ring; 331, protruding block; 332, reset torsional spring; 333, protruding block; 334, guide block; 41, locking plate; 42, movable torsional spring; 43, rotating shaft; 44, connecting block; 45, connecting port; 46, locking port. DETAILED DESCRIPTION

[0023] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figures 1 to 6 As shown, a seat includes a seat cushion 11 and a flip-locking mechanism. A housing 21 is connected to the bottom of the seat cushion 11 and is fixed to the bottom of the seat cushion 11 by bolts. The housing 21 has a movable cavity 24 inside, and the flip-locking mechanism is installed in the movable cavity 24. The housing 21 is also connected to a cover plate 22 that seals the movable cavity 24. The cover plate 22 and the housing 21 are fixedly connected by bolts, making the flip-locking mechanism an independent part, which is convenient for assembly and replacement, and makes production and transportation more convenient.

[0026] The flip-locking mechanism includes a connecting shaft 13, which is located inside the movable cavity 24. Both ends of the connecting shaft 13 pass through the outer shell 21, and the connecting shaft 13 and the outer shell 21 are rotatably connected. Both ends of the connecting shaft 13 are fixedly connected to the outer side of the outer shell 21 with brackets 12, which are armrests of the seat. The flip-locking mechanism can drive the seat cushion 11 to rotate around the connecting shaft 13, which is convenient for control.

[0027] A rotating shaft 43 is rotatably mounted on the lower end face of the cover plate 22. The rotating shaft 43 and the connecting shaft 13 are arranged parallel to each other. A locking plate 41 is fixedly connected to the rotating shaft 43. A connecting block 44 is provided on the end face of the locking plate 41. The locking plate 41 is fixedly connected to the rotating shaft 43 through the connecting block 44, so that the locking plate 41 can rotate with the rotating shaft 43. A locking block 131 is fixedly connected to the connecting shaft 13 in the movable cavity 24. The locking plate 41 can abut against the locking block 131.

[0028] The locking block 131 is located below the connecting shaft 13. One side of the locking plate 41 extends into the lower part of the connecting shaft 13 and abuts against the locking block 131. At the same time, the connecting shaft 13 abuts against the lower part of the connecting shaft 13. When the locking plate 41 and the locking block 131 abut against each other, the seat cushion 11 cannot be flipped downward around the connecting shaft 13.

[0029] A collar 33 is rotatably mounted on the connecting shaft 13. The collar 33 is formed by the combination of two arc blocks and is located between two locking blocks 131. When the collar 33 rotates around the connecting shaft 13, it can abut against the locking plate 41, causing the locking plate 41 to flip. When the locking plate 41 flips, it separates from the locking block 131. At this time, the seat cushion 11 can drive the flipping locking mechanism to rotate around the connecting shaft 13.

[0030] Wherein, the locking plate 41 is provided with a locking hole 46 below the connecting shaft 13, the sleeve ring 33 can pass through the locking hole 46, further, the sleeve ring 33 is provided with a protruding block 333 below the locking hole 46, the protruding block 333 extends along the axial direction of the connecting shaft 13, the protruding block 333 cannot pass through the locking hole 46, when the sleeve ring 33 rotates upward, the protruding block 333 abuts against the locking plate 41 and drives the locking plate 41 to rotate upward, realizing reverse locking, the balance among the protruding block 333, the locking plate 41 and the clamping block 131 is formed, so that the position of the cushion 11 is in a balanced state.

[0031] Wherein, in order to maintain the balance among the protruding block 333, the locking plate 41 and the clamping block 131, the rotating shaft 43 is provided with a movable torsion spring 42 above the locking plate 41, the movable torsion spring 42 is located on the side of the locking plate 41 away from the connecting shaft 13, the movable torsion spring 42 is sleeved on the rotating shaft 43, one end of the movable torsion spring 42 abuts against the top cover 22, the other end of the movable torsion spring 42 abuts against the locking plate 41, the movable torsion spring 42 is always in a compressed state, the movable torsion spring 42 makes the side of the locking plate 41 close to the connecting shaft 13 turn upward through the lever principle, thereby ensuring the balance among the three.

[0032] Further, the sleeve ring 33 is connected with a reset torsion spring 332 above the locking plate 41, the sleeve ring 33 is provided with a protruding connection block above the locking plate 41, one end of the reset torsion spring 332 is fixedly installed on the connection block, the other end of the reset torsion spring 332 abuts against the locking plate 41, and the elastic force of the reset torsion spring 332 is smaller than that of the movable torsion spring 42, preventing the sleeve ring 33 together with the reset torsion spring 332 from pressing the locking plate 41 downward, causing the balance to be broken.

[0033] When the balance among the protruding block 333, the locking plate 41 and the clamping block 131 is broken, the cushion 11 can rotate around the connecting shaft 13, wherein, the sleeve ring 33 is connected with a traction rope 34, one end of the traction rope 34 is fixedly connected to the connection block on the upper side of the sleeve ring 33, the traction rope 34 extends downward to pass through the connecting shaft 13 and the sleeve ring 33, the traction rope 34 is connected with a locking handle 31 on the side of the connecting shaft 13 away from the locking plate 41, the locking handle 41 extends out of the shell 21, and a fixed block 32 is fixedly installed on the cover plate 22, the locking handle 31 and the fixed block 32 are slidingly connected, the locking handle 31 can drive the traction rope 34 to move, thereby driving the sleeve ring 33 to rotate, so as to release the balanced state, and make the cushion 11 turn over, after the locking handle 41 is released, the movable torsion spring 42 and the reset torsion spring 332 can make the sleeve ring 33 and the locking plate 41, and directly rotate the cushion 11 to reset.

[0034] Wherein, in this embodiment, due to the setting of the rotating shaft 13, the locking handle 41 is arranged on the lower side of the cushion 11, which is convenient for pulling and more convenient.

[0035] When the sleeve 33 and the locking plate 41 are reset, the protrusion 333 needs to pass through the locking hole 46, therefore, the sleeve 33 is provided with a guide block 334 below the protrusion 333, the guide block 334 is an arc-shaped block, the arc-shaped block 334 can abut against the locking plate 41, so that the protrusion 333 is reset, and the cushion 11 is re-locked.

[0036] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A flip lock mechanism, characterized by: The connecting shaft (13) is provided with a sleeve ring (33) which is rotatably connected to the connecting shaft (13), and a locking plate (41) for locking the rotation of the connecting shaft (13), one side wall of the locking plate (41) is provided with a locking hole (46) which penetrates up and down, the sleeve ring (33) penetrates through the locking hole (46), and the sleeve ring (33) is provided with a protrusion (333) which abuts against the locking hole (46); the locking plate (41) is connected with a turnover device for resetting, the sleeve ring (33) is fixedly connected with a driving device for controlling rotation in the sleeve ring (33), the driving device comprises a traction rope (34) which is fixedly connected with the sleeve ring (33), when the sleeve ring (33) rotates, the sleeve ring (33) extrudes the locking plate (41), and the locking plate (41) is separated from the connecting shaft (13). The connecting shaft (13) is fixedly connected with a clamping block (131) which abuts against the locking plate (41).

2. A flip lock mechanism according to claim 1, wherein: The traction rope (34) is fixedly connected around the connecting shaft (13) and the sleeve ring (33), and the traction rope (34) is connected with a traction handle (31).

3. A flip lock mechanism according to claim 2, wherein: The turnover device comprises a rotating shaft (43), the rotating shaft (43) is fixedly connected with the locking plate (41), and the rotating shaft (43) is sleeved with a movable torsional spring (42) which abuts against the locking plate (41).

4. A flip lock mechanism according to claim 3, wherein: The sleeve ring (33) is connected with a resetting torsional spring (332), one end of the resetting torsional spring (332) is connected with the sleeve ring (33), the other end of the resetting torsional spring (332) abuts against the locking plate (41), and the elastic force of the resetting torsional spring (332) is smaller than that of the movable torsional spring (42).

5. A seat, characterized by: The turnover locking mechanism of any one of claims 3-4 is connected to a cushion (11), the lower part of the cushion (11) is connected with a shell (21), the shell (21) is provided with an active cavity (24) which opens upward, the turnover locking structure is connected with the active cavity (24), the connecting shaft (13) rotates and penetrates through the shell (21), and the connecting shaft (13) is fixedly connected with a support (12) outside the shell (21).

6. A seat as claimed in claim 5, characterised in that: The shell (21) is connected with a cover plate (22) at the opening, the rotating shaft (43) is rotatably connected with the cover plate (22), one end of the movable torsional spring (42) abuts against the locking plate (41), and the other end of the movable torsional spring (42) abuts against the cover plate (22).

7. A seat according to claim 6, wherein: The lower end of the cover plate (22) is fixedly connected with a fixed block (32), and the traction handle (31) is slidably connected with the fixed block (32).

Images