Seat base with locking device

Abstract

The utility model discloses a seat base with a locking device, which comprises a connecting block, supporting legs, universal wheels, a hydraulic cylinder, a supporting plate, a protective shell, a locking mechanism, a rotating mechanism and a mounting plate, the side wall of the connecting block is fixedly connected with a plurality of uniformly and annularly distributed supporting legs, and the hydraulic cylinder is fixedly connected to the upper end of the connecting block. The protective shell is fixedly connected to the upper side of the supporting plate, the locking mechanism is arranged between the protective shell and the supporting plate, and the rotating mechanism is arranged on the upper side of the outer portion of the protective shell. Compared with the prior art, the seat has the advantages that when the seat needs to be rotationally locked, the handle is rotated rightwards, the upper portion of the locking rod is controlled to be attached to the upper portion of the rotating plate through the locking mechanism, and the rotating plate is clamped and fixed, so that the seat cannot rotate at will, and if the seat needs to be rotated again, the handle is rotated leftwards; the locking rod is separated from the rotating plate to complete unlocking by matching with the spring, the operation is simple, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat bases, in particular to a seat base with a locking device. Background Art

[0002] A seat is a kind of seating with a backrest and some also have armrests. According to the classification of use: airport seats, car seats, bus seats, family seats, restaurant seats, child safety seats, leisure seats, etc.

[0003] The seats in the prior art can achieve the functions of lifting, moving and rotating through the base. However, the general seat base only realizes the rotation function through bearings and is not equipped with a corresponding locking device, which makes the seat unable to be fixed when it needs to be used in specific occasions, and has certain limitations.

[0004] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to solve the above-mentioned problem and provide a seat base with a locking device.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: a seat base with a locking device, comprising:

[0007] A connecting block, the side walls of which are fixedly connected to a plurality of evenly distributed supporting legs;

[0008] A universal wheel, the universal wheel being fixedly connected to the lower portion of one end of the support leg away from each other;

[0009] A hydraulic cylinder, the hydraulic cylinder being fixedly connected to the upper end of the connecting block;

[0010] A support plate, the support plate being fixedly connected to the upper end of the hydraulic cylinder;

[0011] A protective shell, the protective shell being fixedly connected to the upper side of the support plate;

[0012] A movable groove is provided at the lower end of the front side of the protective shell;

[0013] A shaft, the shaft being fixedly connected to the middle of the upper side of the protective housing;

[0014] The locking mechanism is arranged between the protective shell and the support plate, and includes a bearing 1, a ratchet, a connecting ring, a rotating ring, a handle, a push rod, a connecting seat, a locking rod, and a spring. The bearing 1 is fixedly sleeved on the upper part of the shaft rod, the ratchet is fixedly sleeved on the outside of the bearing 1, the connecting ring is fixedly connected to the lower side of the ratchet and sleeved on the outside of the shaft rod, the rotating ring is arranged at the lower part of the connecting ring and sleeved on the outside of the shaft rod, the handle is fixedly connected to the front side of the outside of the rotating ring, the handle passes through the movable groove, a plurality of push rods with uniform ring distribution are passed through the upper part of the side wall of the protective shell, the connecting seat is arranged on the upper part of the push rod, the connecting seat is fixedly connected to the upper side of the outside of the protective shell, the locking rod is rotatably connected to the inside of the connecting seat, the upper end of the locking rod is tilted, and the spring is fixedly connected between the locking rod and the outside of the protective shell;

[0015] A rotating mechanism, the rotating mechanism being arranged on the upper side of the exterior of the protective housing;

[0016] A mounting plate is provided on the upper portion of the rotating mechanism.

[0017] As an improvement, the rotating mechanism includes:

[0018] A placement slot, the placement slot being opened in the middle of the upper side of the outer portion of the protective shell;

[0019] A second bearing, wherein the second bearing is fixedly connected to the interior of the placement groove;

[0020] A rotating block, the rotating block being fixedly connected to the interior of the second bearing;

[0021] A rotating plate, the rotating plate being fixedly connected to the upper end of the rotating block;

[0022] The fixed block is fixedly connected to the upper portion of the rotating plate.

[0023] As an improvement, the upper portion of the rotating plate is in the shape of a frustum, and the upper portion of one side of the locking rods is close to each other and fits in with the inclined surface of the upper portion of the rotating plate.

[0024] As an improvement, the supporting legs are arranged to be tilted downward, the number of the supporting legs is 5, and the number of the locking rods is 3.

[0025] As an improvement, the front and rear ends of the lower side of the connecting ring are fixedly connected with a clamping block, and the front and rear ends of the upper part of the rotating ring are provided with a clamping slot, and the clamping block is adapted to the clamping slot.

[0026] The advantages of the present invention compared with the prior art are: 1. The present invention sets a rotating mechanism, which enables the mounting plate to rotate freely through the cooperation of the placement groove, bearing 2, rotating block, rotating plate and fixed block, thereby driving the seat to realize the rotation function. When the seat needs to be locked for rotation, by turning the handle to the right, the rotating ring is controlled to drive the connecting ring and the ratchet to rotate, and the ratchet teeth of the ratchet continuously push the push rod to move to the outside of the protective shell, and the push rod pushes the lower end of the locking rod to make the locking rod rotate around the inside of the connecting seat, thereby controlling the upper part of the locking rod to fit with the upper part of the rotating plate, clamping and fixing the rotating plate, so that the seat can no longer be rotated at will. If you want to rotate it again, turn the handle to the left, and cooperate with the spring to make the locking rod disengage from the rotating plate to complete the unlocking. The operation is simple and the practicality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The utility model is a structural schematic diagram of a seat base with a locking device.

[0028] Figure 2 The utility model is a cross-sectional view of a locking mechanism and a rotating mechanism of a seat base with a locking device.

[0029] Figure 3 It is a side cross-sectional schematic diagram of a seat base with a locking device according to the present invention.

[0030] Figure 4 It is a top cross-sectional schematic diagram of a seat base with a locking device according to the present invention.

[0031] Figure 5 yes Figure 2 Enlarged view of area A in the middle.

[0032] As shown in the figure: 1. Connecting block; 2. Support leg; 3. Universal wheel; 4. Hydraulic cylinder; 5. Support plate; 6. Protective shell; 7. Movable slot; 8. Shaft; 9. Locking mechanism; 9.1. Bearing 1; 9.2. Ratchet; 9.3. Connecting ring; 9.4. Rotating ring; 9.5. Handle; 9.6. Push rod; 9.7. Connecting seat; 9.8. Locking rod; 9.9. Spring; 10. Rotating mechanism; 10.1. Placement slot; 10.2. Bearing 2; 10.3. Rotating block; 10.4. Rotating plate; 10.5. Fixed block; 11. Mounting plate. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings.

[0034] Combined with attachment Figure 1-5The utility model has several evenly distributed support legs 2 fixedly connected to the side wall of the connecting block 1. The support legs 2 are arranged to be tilted downward. There are 5 support legs 2 and they have good bearing capacity. The support legs 2 and the connecting block 1 are both made of stainless steel. The support legs 2 are fixedly connected to the lower part of one end away from each other with a universal wheel 3 to realize the movement function of the seat.

[0035] A hydraulic cylinder 4 is fixedly connected to the upper end of the connecting block 1 for realizing the lifting function of the seat. A support plate 5 is fixedly connected to the upper end of the hydraulic cylinder 4. A protective shell 6 is fixedly connected to the upper side of the support plate 5 by a number of bolts. A movable groove 7 is provided at the lower end of the front side of the protective shell 6, and a shaft rod 8 is fixedly connected to the middle of the upper side of the interior of the protective shell 6.

[0036] A rotating mechanism 10 is provided on the upper outer side of the protective shell 6, including a placement slot 10.1, a bearing 2 10.2, a rotating block 10.3, a rotating plate 10.4, and a fixed block 10.5. A placement slot 10.1 is provided in the middle of the upper outer side of the protective shell 6, and a bearing 2 10.2 is fixedly connected inside the placement slot 10.1. A rotating block 10.3 is fixedly connected inside the bearing 2 10.2. The upper end of the rotating block 10.3 is fixedly connected to the rotating plate 10.4. The upper part of the rotating plate 10.4 is frustum-shaped. The upper part of the rotating plate 10.4 is fixedly connected to the fixed block 10.5. The upper part of the fixed block 10.5 is fixedly connected to the mounting plate 11, which is used to be fixedly connected to the seat and allows the seat to rotate freely.

[0037] A locking mechanism 9 is provided between the protective shell 6 and the support plate 5, including a bearing 9.1, a ratchet 9.2, a connecting ring 9.3, a rotating ring 9.4, a handle 9.5, a push rod 9.6, a connecting seat 9.7, a locking rod 9.8, and a spring 9.9. The upper part of the shaft 8 is fixedly sleeved with a bearing 9.1, and the outside of the bearing 9.1 is fixedly sleeved with a ratchet 9.2. The ratchet 9.2 is provided with three ratchet teeth. The lower side of the ratchet 9.2 is fixedly connected to a connecting ring 9.3. The connecting ring 9.3 is sleeved on the outside of the shaft 8, and the lower part of the connecting ring 9.3 is fixedly sleeved with the bearing 9.1. A rotating ring 9.4 is provided, and the rotating ring 9.4 is sleeved on the outside of the shaft 8. A card block is fixedly connected to the front and rear ends of the lower side of the connecting ring 9.3. A card slot is provided on the front and rear ends of the upper part of the rotating ring 9.4. The card block is adapted to the card slot, so that the rotating ring 9.4 and the connecting ring 9.3 can be quickly disassembled. A handle 9.5 is fixedly connected to the front side of the outer side of the rotating ring 9.4. The handle 9.5 passes through the movable groove 7 and can move between the two sides inside the movable groove 7, cooperating with the rotating ring 9.4, the connecting ring 9.3 and the bearing 9.1 to drive the ratchet 9.2 to rotate.

[0038] Three evenly distributed push rods 9.6 are provided on the upper part of the side wall of the protective shell 6. The push rods 9.3 are close to each other at one end and contact with the ratchet 9.2. As the ratchet 9.2 rotates, the push rod 9.6 is pushed by the ratchet teeth and continuously moves toward the outside of the protective shell 6. A connecting seat 9.7 is provided on the upper part of the push rod 9.6. The connecting seat 9.7 is fixedly connected to the upper side of the outer side of the protective shell 6. A locking rod 9.8 is rotatably connected inside the connecting seat 9.7. The push rods 9.6 are away from each other at one end and abut against the locking rod 9.8. The upper end of the locking rod 9.8 is tilted toward the shaft 8 and can be fitted with the upper inclined surface of the rotating plate 10.4 to clamp and fix the rotating plate 10.4. A spring 9.9 is fixedly connected between the locking rod 9.8 and the outside of the protective shell 6 to provide elastic force to push the locking rod 9.8 to the outside when the fixation is released.

[0039] When the utility model is implemented, Figure 1 As shown, the base is fixedly connected to the seat through the mounting plate 11, and the seat can be freely rotated by the rotating mechanism 10, the moving function is realized by the universal wheel 3, and the lifting function is realized by the hydraulic cylinder 4. When the rotation of the seat needs to be locked in a specific occasion, the handle 9.5 is turned to the right to control the rotating ring 9.4 to drive the connecting ring 9.3 and the ratchet 9.2 to rotate. The ratchet teeth of the ratchet 9.2 continuously push the push rod 9.6 to move outside the protective shell 6, and the push rod 9.6 pushes the lower end of the locking rod 9.8 to make the locking rod 9.8 rotate around the inside of the connecting seat 9.7, thereby controlling the upper part of the locking rod 9.8 to fit with the upper part of the rotating plate 10.4, clamping the rotating plate 10.4, so that the seat can no longer be rotated at will. If you want to rotate it again, turn the handle 9.5 to the left, and cooperate with the spring 9.9 to make the locking rod 9.7 disengage from the rotating plate 10.4 to complete the unlocking.

[0040] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A seat base with a locking device, characterized in that: include: A connecting block (1), wherein a plurality of evenly distributed supporting legs (2) are fixedly connected to the side wall of the connecting block (1); A universal wheel (3), the universal wheel (3) being fixedly connected to a lower portion of one end of the support leg (2) away from each other; A hydraulic cylinder (4), wherein the hydraulic cylinder (4) is fixedly connected to the upper end of the connecting block (1); A support plate (5), wherein the support plate (5) is fixedly connected to the upper end of the hydraulic cylinder (4); A protective shell (6), wherein the protective shell (6) is fixedly connected to the upper side of the support plate (5); A movable groove (7), the movable groove (7) being provided at the lower end of the front side of the protective shell (6); A shaft (8), the shaft (8) being fixedly connected to the middle of the upper side of the interior of the protective shell (6); A locking mechanism (9) is provided between the protective housing (6) and the support plate (5), and comprises a bearing (9.1), a ratchet (9.2), a connecting ring (9.3), a rotating ring (9.4), a handle (9.5), a push rod (9.6), a connecting seat (9.7), a locking rod (9.8), and a spring (9.9). The bearing (9.1) is fixedly sleeved on the upper part of the shaft (8), the ratchet (9.2) is fixedly sleeved on the outside of the bearing (9.1), the connecting ring (9.3) is fixedly connected to the lower side of the ratchet (9.2) and sleeved on the outside of the shaft (8), and the rotating ring (9.4) is provided on the connecting ring (9. 3) The lower part is sleeved on the outside of the shaft (8), the handle (9.5) is fixedly connected to the front side of the outside of the rotating ring (9.4), the handle (9.5) passes through the movable groove (7), the upper part of the side wall of the protective shell (6) is penetrated by a plurality of push rods (9.6) evenly distributed, the connecting seat (9.7) is arranged on the upper part of the push rod (9.6), the connecting seat (9.7) is fixedly connected to the upper side of the outside of the protective shell (6), the locking rod (9.8) is rotatably connected to the inside of the connecting seat (9.7), the upper end of the locking rod (9.8) is inclined, and the spring (9.9) is fixedly connected between the locking rod (9.8) and the outside of the protective shell (6); A rotating mechanism (10), wherein the rotating mechanism (10) is arranged on the upper side of the exterior of the protective housing (6); A mounting plate (11) is provided on the upper portion of the rotating mechanism (10).

2. A seat base with a locking device according to claim 1, characterized in that: The rotating mechanism (10) comprises: A placement groove (10.1), the placement groove (10.1) is opened in the middle of the upper side of the exterior of the protective shell (6); Bearing 2 (10.2), wherein the bearing 2 (10.2) is fixedly connected to the interior of the placement groove (10.1); A rotating block (10.3), wherein the rotating block (10.3) is fixedly connected to the interior of the second bearing (10.2); A rotating plate (10.4), the rotating plate (10.4) is fixedly connected to the upper end of the rotating block (10.3); A fixed block (10.5) is fixedly connected to the upper portion of the rotating plate (10.4).

3. The seat base with a locking device according to claim 2, characterized in that: The upper portion of the rotating plate (10.4) is in a frustum shape, and the upper portion of one side of the locking rod (9.8) is close to each other and fits in with the upper inclined surface of the rotating plate (10.4).

4. The seat base with a locking device according to claim 1, characterized in that: The supporting legs (2) are arranged to be tilted downward, the number of the supporting legs (2) is five, and the number of the locking rods (9.8) is three.

5. The seat base with a locking device according to claim 1, characterized in that: The front and rear ends of the lower side of the connecting ring (9.3) are fixedly connected with a clamping block, and the front and rear ends of the upper part of the rotating ring (9.4) are provided with a clamping slot, and the clamping block is adapted to the clamping slot.

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