Office chair with storable rollers

Abstract

The office chair comprises a chair plate, a connecting pipe is fixedly installed at the bottom of the chair plate, a plurality of supporting legs are fixedly installed on the surface of the bottom of the connecting pipe, and the supporting legs are arranged in an annular array mode in the axial direction of the connecting pipe; connecting rods are fixedly connected to the bottoms of the supporting legs, moving wheels are rotationally installed at the tail ends of the connecting rods, supporting sleeves are arranged on the outer sides of the moving wheels and connected with lifting assemblies through pull rods, and the lifting assemblies are fixedly installed on the bottom end faces of the connecting pipes and drive the supporting sleeves to move up and down. The supporting sleeve is controlled to move up and down through the lifting assembly, the moving wheels are stored inside, sudden falling of the seat moving wheels during folding is avoided, and the seat moving wheels are safer and more reliable to use by staff.

Description

TECHNICAL FIELD

[0001] The utility model relates to office furniture technical field especially relates to a office chair of which the roller can be stored. BACKGROUND

[0002] The conventional office chair is usually equipped with fixed rollers, which provide convenient mobility in the office environment. In actual work, employees generally take a nap by lying on the desk, and the body of the employee is easy to exert a backward force on the chair, causing the chair to move backward and making the body of the employee away from the desk, thereby affecting the normal rest of the employee. For example, the utility model discloses a office chair of which the roller can be stored in the utility model discloses a office chair of which the roller can be stored, including the seat board, the bottom of seat board is installed with the device casing, the bottom of device casing is fixedly installed with the connecting pipe sleeve, the surface of the bottom of connecting pipe sleeve is fixedly installed with a plurality of supporting legs, and a plurality of supporting legs are arranged in an annular array; the bottom of supporting leg is fixedly installed with U-shaped connecting seat, and the bottom of U-shaped connecting seat is rotatably installed with mounting plate. The utility model can store the moving wheels at the bottom of the chair, but it rotates the rotating rod to drive the first bevel gear and the screw rod to rotate, at this time, the screw sleeve moves upward along the length direction of the screw rod, the mounting plate and the moving wheels are driven to rotate through the movable rod until the bottom of the U-shaped connecting seat contacts the ground, and the storage of the moving wheels is realized. However, if the employee sits on the office chair to operate, the mounting plate will produce friction with the ground during the storage process of the chair, and the chair will suddenly fall when the moving wheels of the chair are stored in place. This affects the safety of the employee. Therefore, it is necessary to develop a office chair of which the roller can be stored in view of the above defects. SUMMARY

[0003] The utility model discloses a office chair of which the roller can be stored, and the supporting sleeve is controlled to move up and down through the lifting assembly, the moving wheels are stored inside, sudden falling of the moving wheels of the chair during folding is avoided, and the employee is safer and more reliable when using.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model discloses a office chair of which the roller can be stored, including seat board, the bottom of seat board is fixedly installed with connecting pipe, the surface of the bottom of connecting pipe is fixedly installed with a plurality of supporting legs, and a plurality of supporting legs are arranged in an annular array along the axial direction of connecting pipe;The bottom of supporting leg is fixedly connected with connecting rod, and the tail end of connecting rod is rotatably installed with moving wheel, the outside of moving wheel is equipped with supporting sleeve, and the supporting sleeve is connected with lifting assembly through pull rod, lifting assembly is fixedly installed on the bottom end surface of connecting pipe, and lifting assembly drives supporting sleeve to move up and down.

[0006] Preferably, the lifting assembly comprises a sliding rod, a sliding sleeve, a screw rod, a first bevel gear, a second bevel gear, a screw sleeve and a handle, the sliding rod is a hollow structure, a screw rod is arranged at the middle position of the inside of the sliding rod, the two ends of the screw rod are fixedly arranged on the upper and lower ends of the sliding rod through bearings, the upper end of the screw rod is fixedly connected with the first bevel gear, a support is vertically arranged on one side of the bottom of the connecting pipe, the handle is rotatably arranged on the support, the front end of the handle extending into the sliding rod is fixedly connected with the second bevel gear, the first bevel gear is engaged with the second bevel gear, the sliding sleeve is slidably arranged on the outside of the sliding rod, a plurality of pull rods are uniformly distributed on the outside of the sliding sleeve, the pull rods are correspondingly connected with the support sleeves, the lower end of the screw rod is threadedly connected with two screw sleeves, the screw sleeves are fixedly connected with the baffles on one side, and the baffles are arranged on the upper and lower ends of the sliding sleeve.

[0007] Preferably, the sliding groove is arranged on one side of the lower end of the sliding rod, and the baffles slide up and down in the sliding groove.

[0008] Preferably, the outside of the moving wheel is provided with a fixing seat, the fixing seat is rotatably connected with the moving wheel, and the upper end of the fixing seat is rotatably connected with the connecting rod.

[0009] Preferably, the spring is arranged between the inner bottom surface of the support sleeve and the upper end surface of the fixing seat.

[0010] Preferably, the lower end surface of the support sleeve is provided with an antiskid pad.

[0011] Compared with the prior art, the office chair with the rollable and storable roller has the beneficial technical effects that:

[0012] The office chair with the rollable and storable roller has the beneficial technical effects that: the support sleeve is moved up and down through the lifting assembly to store the moving wheel in the support sleeve, so that the damage of the moving wheel to the ground is reduced, and the service life of the chair and the ground is prolonged; the antiskid pad is arranged at the lower end of the support sleeve, so that the movement of the chair during the noon break of the office worker is effectively avoided, and the rest is affected. When the support sleeve is adjusted, the spring arranged in the support sleeve and the antiskid pad at the bottom can play a damping role, so that the sound is not too loud when the support sleeve falls, and other personnel are not affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] The office chair with the rollable and storable roller will be further described below in combination with the drawings.

[0014] Fig. 1 It is a front view structural schematic diagram of the office chair with the rollable and storable roller.

[0015] Fig. 2 It is a left view structural schematic diagram of the office chair with the rollable and storable roller.

[0016] Fig. 3The utility model discloses a lifting assembly partial section view three-dimensional structure schematic diagram.

[0017] Mark explanation: 1, seat board, 2, connecting pipe, 3, support leg, 4, connecting rod, 5, moving wheel, 6, support cover, 7, pull rod, 8, lifting assembly, 801, slide rod, 802, slide cover, 803, screw rod, 804, first bevel gear, 805, second bevel gear, 806, screw cover, 807, handle, 808, baffle, 809, support, 9, fixed seat, 10, spring, 11, antiskid pad. DETAILED DESCRIPTION

[0018] The utility model discloses a core provides a kind of office chair of roller can be stored, moving wheel is stored inside by lifting assembly control support cover up and down movement, avoid the sudden drop when seat moving wheel folding, make staff more safe and reliable when using.

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] With reference to the drawings, Fig. 1 It is the main view structural schematic diagram of the utility model office chair of roller can be stored; Fig. 2 It is the left view structural schematic diagram of the utility model office chair of roller can be stored; Fig. 3 It is the lifting assembly partial section view three-dimensional structure schematic diagram of the utility model.

[0022] In a specific embodiment, as Figs. 1-3As shown in the figure, a kind of office chair with rollable wheels includes seat plate 1, the bottom of seat plate 1 is fixedly installed with connecting pipe 2, the surface of the bottom of connecting pipe 2 is fixedly installed with several supporting legs 3, and the several supporting legs 3 are arranged in annular array along the axial direction of connecting pipe;The bottom of supporting leg 3 is fixedly connected with connecting rod 4, the tail end of connecting rod 4 is rotatably installed with moving wheel 5, the outer side of moving wheel 5 is provided with support sleeve 6, support sleeve 6 is slidably connected with lifting assembly 8 through pull rod 7, lifting assembly 8 is fixedly installed on the bottom end face of connecting pipe 2, and lifting assembly 8 drives support sleeve 6 to move up and down.

[0023] In a specific embodiment, as shown in the figure, Figs. 1-3 Lifting assembly 8 includes slide rod 801, slide sleeve 802, screw rod 803, first bevel gear 804, second bevel gear 805, screw sleeve 806 and handle 807, slide rod 801 is hollow structure, screw rod 803 is fixedly installed in the inside middle position of slide rod 801, screw rod 803 is fixedly installed at the upper and lower ends of slide rod 801 through bearing, the upper end of screw rod 803 is fixedly connected with first bevel gear 804, one side of the bottom of connecting pipe 2 is vertically installed with support 809, handle 807 is rotatably installed on support 809, the front end of handle 807 is fixedly connected with second bevel gear 805, which is inserted into one end of slide rod 801, first bevel gear 804 is engaged with second bevel gear 805, slide sleeve 802 is slidably installed on the outer side of slide rod 801, a plurality of pull rods 7 are uniformly distributed on the outer side of slide sleeve 802, pull rod 7 is connected with support sleeve 6 in correspondence, the lower end of screw rod 803 is threadedly connected with two screw sleeves 806, one side of screw sleeve 806 is fixedly connected with baffle 808, and baffle 808 is installed at the upper and lower ends of slide sleeve 802 respectively.

[0024] In a specific embodiment, as shown in the figure, Figs. 1-3 The lower end of one side of slide rod 801 is provided with sliding groove, and baffle 808 slides up and down in sliding groove.

[0025] In a specific embodiment, as shown in the figure, Figs. 1-3 The outer side of moving wheel 5 is provided with fixed seat 9, fixed seat 9 is rotatably connected with moving wheel 5, and the upper end of fixed seat 9 is rotatably connected with connecting rod 4.

[0026] In a specific embodiment, as shown in the figure, Figs. 1-3 Spring 10 is arranged between the inner bottom surface of support sleeve 6 and the upper end surface of fixed seat 9, which plays a buffering role when support sleeve 6 slides down, avoids damaging the ground due to too fast sliding down, makes support sleeve 6 and moving wheel 5 apart in the middle when support sleeve 6 moves up, and avoids the risk of falling of support sleeve 6 when moving wheel 5 moves.

[0027] In a specific embodiment, as shown in the figure, Figs. 1-3As shown, the lower end surface of the support sleeve 6 is provided with a non-slip pad 11. Avoiding the support sleeve 6 from directly contacting the ground is conducive to protecting the bottom of the support sleeve 6 and the floor.

[0028] The running process of the office chair with the storable roller is as follows: when the office worker needs to have a lunch break, the handle 807 is shaken to drive the second bevel gear 805 to rotate, and the second bevel gear 805 drives the first bevel gear 804 to rotate. The first bevel gear 804 is threadedly connected with the screw rod 803, and the screw rod 803 rotates under the driving of the first bevel gear 804. The two screw sleeves 806 installed on the screw rod 803 move downward under the action of the screw rod 803. The side of the screw sleeve 806 is fixedly connected with the baffle 808, and the slide sleeve 802 is slidingly installed between the two baffles 808. Under the action of the screw sleeve 806, the baffle 808 drives the slide sleeve 802 to move downward. The slide sleeve 802 and the support sleeve 6 are connected by the pull rod 7, and the support sleeve 6 moves downward under the driving of the pull rod 7 until the moving wheel 5 is completely stored in the support sleeve 6. The moving wheel 5 cannot contact the ground, so that the whole chair is not easy to move relative to the ground when the office worker has a lunch break, which is conducive to the lunch break of the office worker. The lower end of the moving wheel 5 support sleeve 6 is provided with a non-slip pad 11, which contacts the ground and protects the floor. The spring 10 is installed between the support sleeve 6 and the moving wheel 5, which can slow down the downward speed of the support sleeve 6 and avoid the ground from being damaged by the rapid downward movement. When the chair needs to be moved, the handle 807 is rotated in the reverse direction to make the screw sleeve 806 move upward, and the screw sleeve 806 drives the slide sleeve 802 to move upward. Thus, the support sleeve 6 moves upward and separates from the ground, and the moving wheel 5 contacts the ground and can be moved.

[0029] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0030] The above-described embodiments are only preferred modes of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements of the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. An office chair with stowable castors, comprising a seat plate (1), characterized in that: The bottom of the seat plate (1) is fixedly provided with a connecting pipe (2), the bottom surface of the connecting pipe (2) is fixedly provided with a plurality of supporting legs (3), and the plurality of supporting legs (3) are arranged in a ring array along the axial direction of the connecting pipe; the bottom of the supporting leg (3) is fixedly connected with a connecting rod (4), the tail end of the connecting rod (4) is rotatably provided with a moving wheel (5), the outer side of the moving wheel (5) is provided with a supporting sleeve (6), the supporting sleeve (6) is connected with a lifting assembly (8) through a pull rod (7), and the lifting assembly (8) is fixedly installed on the bottom end surface of the connecting pipe (2). The lifting assembly (8) drives the supporting sleeve (6) to move up and down.

2. The office chair of claim 1, wherein: The lifting assembly (8) comprises a sliding rod (801), a sliding sleeve (802), a screw rod (803), a first bevel gear (804), a second bevel gear (805), a screw sleeve (806) and a handle (807), the sliding rod (801) is a hollow structure, a screw rod (803) is installed at the middle position of the inside of the sliding rod (801), both ends of the screw rod (803) are fixedly installed on the upper and lower ends of the sliding rod (801) through bearings, the upper end of the screw rod (803) is fixedly connected with the first bevel gear (804), a support (809) is vertically installed on one side of the bottom of the connecting pipe (2), the handle (807) is rotatably installed on the support (809), the handle (807) is fixedly connected with the second bevel gear (805) at the end extending into the sliding rod (801), the first bevel gear (804) is engaged with the second bevel gear (805), the sliding sleeve (802) is slidably installed on the outer side of the sliding rod (801), a plurality of pull rods (7) are uniformly distributed on the outer side surface of the sliding sleeve (802), the pull rod (7) is connected with the supporting sleeve (6) in correspondence, the lower end of the screw rod (803) is threadedly connected with two screw sleeves (806), the screw sleeve (806) is fixedly connected with a baffle (808) on one side, and the baffles (808) are respectively installed on the upper and lower ends of the sliding sleeve (802).

3. The office chair of claim 2, wherein: The sliding groove is arranged on one side of the lower end of the sliding rod (801), and the baffle (808) slides up and down in the sliding groove.

4. The office chair of claim 1, wherein: The outer side of the moving wheel (5) is rotatably connected with a fixing seat (9), and the upper end of the fixing seat (9) is rotatably connected with the connecting rod (4).

5. The office chair of claim 4, wherein: The inner bottom surface of the supporting sleeve (6) and the upper end surface of the fixing seat (9) are provided with a spring (10).

6. The office chair of claim 1, wherein: The lower end surface of the supporting sleeve (6) is provided with a non-slip pad (11).

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