CN106419228B

CN106419228B - Explosion-proof swivel chair

Info

Publication number: CN106419228B
Application number: CN201610952042.4A
Authority: CN
Inventors: 董经飞
Original assignee: Wuhu Langge Information Technology Co ltd
Current assignee: Wuhu Langge Information Technology Co ltd
Priority date: 2016-10-27
Filing date: 2016-10-27
Publication date: 2023-03-10
Anticipated expiration: 2036-10-27
Also published as: CN106419228A

Abstract

The invention relates to the field of seats, in particular to an explosion-proof swivel chair which comprises a chair body, a pneumatic rod, a base, a rotation resisting assembly and a fingerprint identification resistance eliminator, wherein the fingerprint identification resistance eliminator is fixedly connected to the bottom of the chair body, the rotation resisting assembly comprises an outer pipe, an inner pipe, a grid sensor and a stopping assembly, the lower end of the outer pipe is fixedly connected to the base, the upper end of the inner pipe is fixedly connected with the bottom of the chair body, the grid sensor comprises auxiliary grids uniformly distributed on the inner wall of the outer pipe and main grids arranged on the outer wall of the inner pipe, and the stopping assembly is arranged on the outer wall of the outer pipe. The invention detects the rotating speed and the rotating time of the swivel chair through the auxiliary grid arranged on the outer pipe and the main grid of the inner pipe, and when the speed is overlarge or the swivel chair rotates for a long time, the inner pipe is stopped by the stop piece, thereby avoiding the danger of frequent friction explosion of the air pressure rod caused by the over-rotation of the swivel chair.

Description

Explosion-proof swivel chair

Technical Field

The invention relates to the field of seats, in particular to an explosion-proof swivel chair.

Background

The swivel chair is one of computer chair and office chair, and can be lifted and rotated by 360 deg., and its lifting basic principle is that a lifting device is equipped with a pneumatic bar, said pneumatic bar is an elastic element which uses gas and liquid as working medium and can possess the functions of supporting, buffering, braking, height regulation and angle regulation, and its basic principle is that its interior is filled with high-pressure nitrogen gas, and its interior is equipped with through hole, the gas pressures of two ends of piston are identical, and the cross-sectional areas of two sides of piston are different, one end is connected with piston rod, and another end is not, and according to the lifting valve, under the action of gas pressure the pressure can be produced toward one side with small cross-sectional area, i.e. the elastic force of pneumatic bar, so that the lifting shaft can be slowly descended, and its speed is uniform, and can be reduced to lowest point. The lifting shaft rises to the highest point without applying external force to the lifting shaft. The piston rod is kept at the current position without pressing the lifting valve.

In daily life, people often find that people sit on the swivel chair to rotate quickly or rotate for a long time, and the operation has great safety hazards because the gas pressure rod is filled with nitrogen and explosion can occur under the condition of frequent friction.

Disclosure of Invention

The invention aims to solve the problems of the prior art and provides an explosion-proof swivel chair, wherein an inner pipe and an outer pipe are arranged at the bottom of the swivel chair, the rotating speed and the continuous rotating time of the swivel chair are detected through a main grid arranged on the inner pipe and an auxiliary grid arranged on the outer pipe, and when the rotating speed is too high or the continuous rotating time is too long, the swivel chair is stopped, so that the danger of explosion caused by frequent friction of an air pressure rod due to over-rotation is avoided.

In order to solve the above problems, the present invention provides the following technical solutions:

the utility model provides an explosion-proof swivel chair, includes chair body, atmospheric pressure stick and base, the atmospheric pressure stick includes the barred body and sets up the piston rod in the barred body, is full of nitrogen gas in the barred body, and the atmospheric pressure stick promotes the piston rod up-and-down motion through adjusting business turn over air supply, and the upper end cup joints in the chair body bottom, and the lower tip of barred body cup joints on the base, its characterized in that: the anti-rotation device comprises a bar body, and is characterized by further comprising a rotation resisting assembly and a fingerprint identification resistance releasing device, wherein the fingerprint identification resistance releasing device is fixedly connected to the bottom of the bar body, the rotation resisting assembly comprises an outer pipe, an inner pipe, a capacitive grating sensor and a stopping assembly, the outer pipe is sleeved outside the bar body, the lower end of the outer pipe is fixedly connected to a base, the upper end of the inner pipe is fixedly connected to the bottom of the bar body, the lower end of the inner pipe is in sleeve fit with the upper end of the outer pipe, the capacitive grating sensor comprises auxiliary gratings uniformly distributed on the inner wall of the outer pipe and a main grating mounted on the outer wall of the inner pipe, the stopping assembly comprises an S-shaped lever, a lever seat, a braking piece, an electromagnetic chuck and a chuck seat, the lever seat and the chuck seat are mounted on the outer wall of the outer pipe in the vertical direction, the lever is rotatably connected to the lever seat, the braking piece is fixedly mounted on the upper end of the lever, a top piece is arranged on the lever seat, a spring is arranged in the top piece, the top piece is abutted against the upper half part of the lever under the action force of the spring, the electromagnetic chuck is mounted on the chuck seat, the electromagnetic chuck is opposite to the lower end of the chuck seat, and a controller for controlling the electromagnetic chuck is arranged in the chuck seat; and the capacitive grating sensor and the controller are both in communication connection with the fingerprint identification resistance eliminator.

Furthermore, the lower extreme integrated into one piece of outer tube has a first ring flange, the lower extreme of base is equipped with the second ring flange, the outer tube passes first ring flange and second ring flange and base fixed connection through the bolt.

Furthermore, a first power supply connected with the controller is arranged on the sucker seat.

Furthermore, the electromagnetic chuck is electrically connected with a first power supply.

Further, fingerprint identification hinders ware includes that mount pad and fingerprint identification ware, treater and second power electric connection, fingerprint identification ware and treater electric connection, the main grid passes through wire and treater electric connection.

Further, the processor is provided with a wireless transmitting module, the controller is provided with a wireless receiving module, and the controller is in communication connection with the processor through wireless signals.

Has the beneficial effects that: according to the explosion-proof swivel chair, the inner pipe is arranged at the bottom of the swivel chair body, the outer pipe is arranged on the swivel chair base, the stop piece is arranged on the outer pipe, the rotation speed and the rotation time of the swivel chair are detected through the auxiliary grid arranged on the outer pipe and the main grid of the inner pipe, when the speed is too high or the swivel chair rotates for a long time, the stop piece stops the inner pipe, and further the danger of frequent friction explosion of the air pressure rod caused by the fact that the swivel chair rotates for a long time is avoided.

Description of the drawings:

figure 1 is a perspective view of the present invention,

figure 2 is an exploded assembly schematic view of the present invention,

figure 3 is a partially exploded assembly view of the first embodiment of the present invention,

figure 4 is a partial exploded assembly view of the second embodiment of the present invention,

figure 5 is a partially exploded assembly view three of the present invention,

fig. 6 is a cross-sectional view of the present invention.

The reference number indicates that the chair body 1, the base 2, the air pressure bar 3, the piston rod 31, the bar body 32, the fingerprint identification resistance releaser 4, the fingerprint identifier 41, the second power supply 42, the inner tube 5, the outer tube 6, the stop component 7, the brake piece 71, the lever 72, the top piece 73, the lever seat 74, the electromagnetic chuck 75, the chuck seat 76, the first power supply 77, the controller 78, the auxiliary grid 81, the first mounting seat 311 and the second mounting seat 321.

Detailed Description

The following detailed description of specific embodiments of the present invention is made with reference to the accompanying drawings and examples:

referring to fig. 1 to 6, an explosion-proof swivel chair comprises a chair body 1, a pneumatic rod 3 and a base 2, wherein the pneumatic rod 3 comprises a rod body 32 and a piston rod 31 arranged in the rod body 32, the pneumatic rod 3 is an elastic element which uses gas and liquid as working media and has the functions of supporting, buffering, braking, height adjusting, angle adjusting and the like, the rod body 32 is filled with high-pressure nitrogen, a through hole is formed in the piston, the gas pressure at two ends of the piston is equal, the sectional areas at two sides of the piston are different, one end of the piston is connected with the piston rod 31, the other end of the piston is not connected with the piston rod, under the action of the gas pressure, pressure towards one side with a small sectional area, namely the elastic force of the pneumatic rod is generated, when a lifting valve is pressed down, a person sits on the lifting shaft to apply pressure, the lifting shaft is slowly lowered, the speed is uniform, and the lowest point can be reached. The lifting shaft is lifted to the highest point without applying external force to the lifting shaft, and the piston rod 31 is kept at the current position without pressing a lifting valve. The piston rod 31 can rotate and lift relative to the rod 32 of the pneumatic rod, the upper end of the piston rod 31 is sleeved at the bottom of the chair body 1, the bottom of the chair body 1 is provided with a first mounting seat 311 for sleeving the upper end of the piston rod 31, the lower end of the rod 32 is sleeved on the base 2, the base 2 is provided with a second mounting seat 321 for sleeving the rod 32, and the piston rod 31 drives the chair body 1 to lift and rotate.

The swivel chair is still including hindering and changeing subassembly and fingerprint identification and relieving and hinder ware 4, fingerprint identification relieves and hinders 4 fixed connection in 1 bottom of chair body, hinder and change the subassembly and include outer tube 6, inner tube 5, appearance bars sensor and locking subassembly 7, 6 covers of outer tube are established at stick body 32

outer tube

6, and 6 lower extreme fixed connection of outer tube are on base 2, and outer tube inner wall and stick body 32 outer wall constitute one hold the chamber that holds inner tube 5, the upper end and 1 bottom fixed connection of chair body of inner tube 5, the lower extreme and the 6 upper ends of outer tube of inner tube 5 cup joint the cooperation, and 1 lifting and rotating of chair body drives inner tube 5 and is holding intracavity lifting and rotating.

The capacitive grating sensor comprises auxiliary gratings 81 which are uniformly distributed on the inner wall of the outer tube 6 and main gratings 82 which are arranged on the outer wall of the inner tube 5, wherein the auxiliary gratings 81 extend from the upper end to the lower end of the outer tube 6, the main gratings 82 are arranged at the lower end of the inner tube 5, and when the chair body 1 is lifted to drive the inner tube 5 to move up and down, the capacitive grating sensor can always keep a detection state. The capacitive grating sensor measures the rotation speed of the inner tube 5 through the relative movement of the main grating 82 and the auxiliary grating 81.

Stop subassembly 7 includes lever 72, lever seat 74, the piece 71 of stopping, electromagnetic chuck 75 and sucking disc seat 76 of S type, lever seat 74 and sucking disc seat 76 are installed on outer tube 6 outer wall along the vertical direction, and lever seat 74 is equipped with the axle piece, the axle piece passes lever seat 74 and lever 72 and rotates lever 72 and connect on lever seat 74, is equipped with the hole that supplies the axle to pass on the lever 72, and the both sides in hole are equipped with the packing ring, the packing ring is connected with the both sides inner wall contact of lever seat 74 respectively, and two packing rings are spacing at the intermediate position of lever seat 74 with lever seat 74, and piece 71 fixed mounting of stopping is in the upper end of lever 72, be equipped with a ejecting 73 on lever seat 74, be equipped with the spring in the ejecting 73, ejecting 73 under the effort of spring with the first half butt of lever 72.

The electromagnetic chuck 75 is arranged on the chuck seat 76, the electromagnetic chuck 75 is opposite to the lower end of the lever 72, a controller 78 for controlling the on-off of the electromagnetic chuck 75 is arranged in the chuck seat 76, and a wireless receiving device is arranged in the controller 78; the capacitance grating sensor and the controller 78 are both in communication connection with the fingerprint identification resistor 4.

In a normal state, the top piece 73 jacks up the upper half part of the lever 72 under the elastic acting force of the spring, so that the brake piece 71 is separated from the inner tube 5, and the chair body 1 rotates as usual;

the lower extreme integrated into one piece of outer tube 6 has a first ring flange, the lower extreme of base 2 is equipped with the second ring flange, outer tube 6 passes first ring flange and second ring flange and base 2 fixed connection through the bolt, can be more firm through two ring flange fixed connection, and need not punch on base 2.

The suction cup holder 76 is provided with a first power supply 77 connected with a controller 78.

The electromagnetic chuck 75 is electrically connected to a first power source 77.

The first power supply 77 directly supplies power to the controller 78 and the electromagnetic chuck 75, so that the space is saved, and the use is convenient.

The fingerprint identification resistance eliminator 4 comprises a mounting seat, a fingerprint identification device 41, a processor and a second power supply 42, the processor is electrically connected with the second power supply 42, the fingerprint identification device 41 is electrically connected with the processor, and the main grid 82 is electrically connected with the processor through a wire. The processor is responsible for processing the data transmitted by the main grid 82 and obtaining the rotating speed of the chair body 1 and the continuous rotating time of the chair body 1 according to the signals of the main grid 82.

The processor is provided with a wireless transmitting module, the controller 78 is provided with a wireless receiving module, and the controller 78 is in communication connection with the processor through wireless signals. The processor sends the electrical signal to the controller 78 by wireless means, which is more convenient and faster and saves space compared to the traditional transmission of data over wires.

When the chair body 1 rotates too fast or rotates back and forth from left to right too fast, the capacitive grating sensor can measure the data and send an electric signal to the processor, the processor calculates the rotation speed value of the chair body 1, when the rotation speed value exceeds a set value, the processor sends a signal to the controller 78, the controller 78 controls the electromagnetic chuck 75 to be electrified, the electromagnetic chuck 75 generates adsorption force to suck the lower end of the lever 72 to lift the lower half part of the lever 72, the upper half part of the lever 72 is driven to overcome the spring action force of the jacking piece 73, the brake piece 71 at the end of the lever is abutted against the inner pipe 5 to achieve the purpose of stopping, the swivel chair loses the functions of rotation and lifting, if the functions are unlocked, a specific fingerprint must be input into the fingerprint identification release 4, when the fingerprint identification passes, the processor sends a signal to the controller 78, and the controller 78 controls the electromagnetic chuck 75 to be powered off to enable the swivel chair to return to a normal state.

Similarly, the processor can also analyze the continuous rotation time of the chair body through the signal sent by the main grid 82, if the continuous rotation time reaches a set value, the processor sends a signal to the controller 78, at the moment, the controller 78 controls the electromagnetic chuck 75 to be electrified, the electromagnetic chuck 75 generates an adsorption force to suck the lower end of the lever 72 so as to lift the lower half part of the lever, so that the upper half part of the lever 72 is driven to overcome the spring action force of the jacking piece 73, the brake piece 71 at the end of the lever is abutted against the inner tube 5 to achieve the purpose of stopping, in this state, the swivel chair loses the functions of rotation and lifting, if the locking of the functions is to be released, a specific fingerprint must be input to the fingerprint identification release device 4, after the fingerprint identification is passed, the processor sends a signal to the controller 78, and the controller 78 controls the electromagnetic chuck 75 to be powered off so as to enable the swivel chair to return to the normal state.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. The utility model provides an explosion-proof swivel chair, includes chair body (1), air pressure stick (3) and base (2), air pressure stick (3) are including barred body (32) and piston rod (31) of setting in barred body (32), are filled with nitrogen gas in barred body (32), and air pressure stick (3) promote piston rod (31) up-and-down motion through adjusting business turn over air supply, and the upper end cup joint of piston rod (31) is in chair body (1) bottom, and the lower tip cup joints on base (2) of barred body (32), its characterized in that: still including hindering commentaries on classics subassembly and fingerprint identification and separating and hinder ware (4), fingerprint identification separates and hinders ware (4) fixed connection in chair body (1) bottom, hinder commentaries on classics subassembly and include outer tube (6), inner tube (5), appearance bars sensor and locking subassembly (7), outer tube (6) cover is established in barred body (32) outside, outer tube (6) lower extreme fixed connection is on base (2), the upper end and chair body (1) bottom fixed connection of inner tube (5), the lower extreme and the outer tube (6) upper end of inner tube (5) cup joint the cooperation, appearance bars sensor is including installing vice bars (81) that evenly arrange at outer tube (6) inner wall and installing main grid (82) at inner tube (5) outer wall, locking subassembly (7) are including lever (72), lever seat (74), the piece of stopping (71), electromagnetic chuck (75) and sucking disc seat (76) of S type, lever seat (74) and sucking disc seat (76) are on the outer wall of vertical direction installation (6), lever seat (72) rotate and are connected on lever seat (74), the fixed connection of stopping is installed on lever seat (71), be equipped with the top spring seat (73) top spring (73) on the top spring (73), be equipped with a spring (73) on the top piece (73), the electromagnetic sucker (75) is arranged on the sucker seat (76), the electromagnetic sucker (75) is opposite to the lower end of the lever (72), and a controller (78) for controlling the on-off of the electromagnetic sucker (75) is arranged in the sucker seat (76); the capacitive grating sensor and the controller (78) are both in communication connection with the fingerprint identification resistance eliminator (4).

2. An explosion-proof swivel chair as claimed in claim 1, wherein: the lower extreme integrated into one piece of outer tube (6) has a first ring flange, the lower extreme of base (2) is equipped with the second ring flange, outer tube (6) pass first ring flange and second ring flange and base (2) fixed connection through the bolt.

3. An explosion-proof swivel chair as claimed in claim 1, wherein: and a first power supply (77) connected with the controller (78) is arranged on the sucker seat (76).

4. An explosion-proof swivel chair as claimed in claim 3, wherein: the electromagnetic chuck (75) is electrically connected with a first power supply (77).

5. An explosion-proof swivel chair as claimed in claim 1, wherein: fingerprint identification resistance-releasing ware (4) include the mount pad with, fingerprint identification ware (41), treater and second power (42) electric connection, fingerprint identification ware (41) and treater electric connection, main bars (82) pass through wire and treater electric connection.

6. An explosion-proof swivel chair as claimed in claim 5, wherein: the processor is provided with a wireless transmitting module, the controller (78) is provided with a wireless receiving module, and the controller (78) is in communication connection with the processor through wireless signals.