Drive-by-wire plugging and locking swivel chair chassis and operation method thereof

Abstract

The invention discloses a drive-by-wire plugging and locking swivel chair chassis and an operation method thereof, and relates to the technical field of swivel chair chassis, the drive-by-wire plugging and locking swivel chair chassis comprises a connecting bottom plate, a movable seat and a warping plate, the two sides of the connecting bottom plate are connected with a lifting control handle and an adjusting control handle respectively, and the lifting control handle is internally connected with a lifting drive-by-wire mechanism; an adjusting drive-by-wire mechanism is connected in the adjusting control handle, and a lock rod box is connected between the lifting drive-by-wire mechanism and the adjusting drive-by-wire mechanism; by arranging a double-rod interlocking structure, the accident danger caused by other adjusting actions accidentally triggered during adjustment of the seat can be avoided, opening and closing of adjustment of stretching and tilting of the swivel chair base can be completed through one-time stretching action, and the safety of the seat is improved. The trouble that a user needs to continuously hold the control rod during adjustment is avoided, and the rotating action of the swivel chair can be limited, so that the safety of the seat when the seat is used in a flat lying manner is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of swivel chair chassis, and more specifically, to a swivel chair chassis with wire-controlled plug-in and lock and an operating method thereof. Background Art

[0002] A swivel chair is a type of computer chair and office chair, a chair whose sitting part can be rotated. Since swivel chairs are now commonly used by workers, most workers will rotate and lie on the chair for a short rest during lunch break, which requires a higher degree of freedom in seat adjustment.

[0003] After searching, the existing patent (publication number: CN206062637U) discloses a wire-controlled synchronous tilt chassis, including a bottom plate, a movable seat, a support seat, a seesaw, a fixed seat and an adjustable wire control mechanism. The bottom plate is installed on the seat plate of the chair, and the movable seat is rotatably connected to the bottom plate by rivet A. Bushings are provided at both ends of rivet A. A fixed seat is provided in the movable seat. A circular hole A is provided in the fixed seat. A flanged circular hole and a circular hole B are provided at the positions corresponding to the movable seat and the bottom plate, respectively. A locking pin with a step is provided in circular hole A. The locking pin passes through the fixed seat, the movable seat and the bottom plate. The bottom plate, the movable seat and the seesaw connected by rivets A, rivets B and rivets C can realize relative rotation of the seesaw while the bottom plate rotates, that is, the angle of the chair backrest can be adjusted while adjusting the angle of the chair cushion part, thereby improving the comfort of the chair. In the process of realizing this application, the inventor found that the prior art has the following problems:

[0004] The existing swivel chair chassis requires the user to constantly apply a force to the pull wire in order to adjust it. This adjustment method makes it impossible for the user to hold the control wire tightly during large-scale adjustments due to changes in body position, thereby increasing the difficulty of adjustment. In addition, when resting, the seat will be laid flat, and the existing swivel chair chassis cannot lock the rotation of the seat. As a result, the person lying on the swivel chair may rotate due to accidental external touch, which will affect the user's rest and increase the risk of injury.

[0005] Therefore, in view of the above-mentioned related technical problems, a swivel chair chassis with wire-controlled plug-in and lock and an operating method thereof are proposed.

[0006] Application Contents

[0007] In order to overcome the above-mentioned defects of the prior art, the present application provides a swivel chair chassis with wire-controlled plug-in and lock and an operating method thereof to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a swivel chair chassis with wire-controlled plug-in and lock, comprising a connecting bottom plate, a movable seat and a rocker plate, the two sides of the connecting bottom plate are respectively connected with a lifting control handle and an adjustment control handle, and the lifting control handle is connected with a lifting wire control mechanism, the adjustment control handle is connected with an adjustment wire control mechanism, and a lock rod box is connected between the lifting wire control mechanism and the adjustment wire control mechanism;

[0009] Among them, both sides of the rocker are connected with sliding connecting plates through a rotating shaft, and the end of the sliding connecting plate away from the rocker is connected to the connecting base plate through a rotating shaft, a sliding adjustment rotating shaft is connected between the movable seat and the rocker, and a tilt adjustment rotating shaft is connected between the connecting base plate and the movable seat, and a gas pressure rod is arranged in the connecting base plate.

[0010] Preferably, the bottom of the movable seat is connected to a spring force adjustment device and a piston connecting cone tube, a lifting piston tube is connected inside the piston connecting cone tube, and a lifting air valve is connected to the top of the lifting piston tube, a rotating limit gear is sleeved on the outer side of the lifting air valve, and a rotating limit column is connected to the movable seat through a bearing, and multiple groups of limiting annular plates arranged in a linear array are welded to the outer side of the rotating limit column.

[0011] Preferably, the lifting wire control mechanism is connected with an air valve triggering protrusion and a telescopic locking rod, and one side of the air valve triggering protrusion is against the lifting air valve, the outer side of the adjusting wire control mechanism is sleeved with a driving drum and an adjusting locking rod, two groups of parallel locking rod slots are arranged in the lock rod box, and the adjusting locking rod and the telescopic locking rod are respectively inserted into the two groups of locking rod slots.

[0012] Preferably, a return spring is connected between the telescopic locking rod and the locking rod slot, locking ball grooves are provided on the adjusting locking rod and the telescopic locking rod, a limiting ball groove is provided between the two sets of locking rod slots, and a locking ball that is engaged with the locking ball groove is provided in the limiting ball groove, and a return spring is connected between the telescopic locking rod and the lock rod box.

[0013] Preferably, one end of the regulating wire control mechanism is connected to a telescopic spring, one end of the telescopic spring is connected to a spring pressure plate, and one side of the spring pressure plate is attached to the air valve at one end of the gas pressure rod, and the side of the movable seat close to the spring pressure plate is connected to an opening and closing slider, and a heart-shaped slide groove is arranged in the opening and closing slider, and two groups of anti-rebound inclined blocks which are centrally symmetrical to each other are arranged in the heart-shaped slide groove.

[0014] Preferably, an adjustment box slidably connected to the opening and closing slider is provided in the movable seat, and the opening and closing slider is connected to the inner wall of the adjustment box through a spring, an opening and closing limit rod is connected to the adjustment box through a rotating shaft, and one end of the opening and closing limit rod is connected to the heart-shaped slide groove.

[0015] Preferably, two groups of rotation limit plates are sleeved on the outer sides of the sliding adjustment shaft and the tilt adjustment shaft, the spring pressure plate is connected between the two groups of rotation limit plates, and the spring pressure plate is connected to the sliding adjustment shaft and the tilt adjustment shaft through bearings, and the spring pressure plate is connected to a group of rotation limit plates through a spring.

[0016] Preferably, a connecting sleeve is connected between the adjusting wire control mechanism and the driving drum, the connecting sleeve and the driving drum are slidingly connected through mutually engaging protrusions and grooves, and the driving drum is connected to the movable seat through a bearing ring, and a driving wheel is sleeved on the outer side of the driving drum.

[0017] Preferably, the groove depth of the limiting annular plate is 1.2-1.5 times the tooth height of the rotating limiting gear, and the spacing between adjacent grooves is equal to an integer multiple of the gear tooth pitch, and multiple groups of the limiting annular plates are provided with grooves located on the same straight line, one end of the rotating limiting column is connected to a right-angle coupling group, and the end of the right-angle coupling group away from the rotating limiting column is connected to a transmission wheel, the transmission wheel is connected to the driving wheel by a belt, and the outer sides of the transmission wheel and the driving wheel are adhered with an anti-slip silicone layer.

[0018] Preferably, a swivel chair chassis with wire-controlled plug-in and lock and an operating method thereof, the operating method comprising the following steps:

[0019] Step 1: First, the swivel chair can be adjusted through the swivel chair base. When the swivel chair base is raised or lowered, the lifting and lowering air valve can be controlled by stretching the lifting and lowering control handle, thereby controlling the lifting and lowering movement of the lifting and lowering piston tube through the lifting and lowering air valve to complete the lifting and lowering of the swivel chair base;

[0020] Step 2: When adjusting the telescopic and reclining state of the swivel chair, the state of the swivel chair is adjusted by adjusting the control handle, the adjustment control handle drives the adjustment wire control mechanism to move, and the adjustment wire control mechanism drives the spring pressing piece and the opening and closing slider to move, and the opening and closing slider is fixed in the adjustment box during the movement, and the telescopic and reclining state of the swivel chair is unlocked at this time;

[0021] Step 3: The spring pressing piece releases the lock on the sliding adjustment shaft and the tilt adjustment shaft during the movement, and the connecting bottom plate can slide on the movable seat and the rocker plate;

[0022] Step 4: The bottom plate connected at the same time can be swung forward and backward on the movable seat through the tilt adjustment shaft, and after the adjustment is completed, the state of the swivel chair can be locked by adjusting the control handle again;

[0023] Step 5: When the rotation of the swivel chair needs to be locked, it can be adjusted by rotating the adjustment control handle. When the adjustment control handle is rotated, the adjustment control handle drives the driving drum and the driving wheel connected thereto to rotate through the adjustment wire control mechanism, and the driving wheel drives the rotation limit column to rotate through the right-angle coupling group during the rotation process, thereby completing the locking of the rotation of the lifting piston tube.

[0024] Technical effects and advantages of this application:

[0025] 1. Compared with the prior art, the swivel chair chassis with wire-controlled plug-in and lock and the operation method thereof are provided with a double-rod interlocking structure, which can avoid the danger of accidental adjustment due to other adjustment actions accidentally triggered when adjusting the seat. The lifting control handle and the adjustment control handle form an interlocking structure through a lock rod box. When the telescopic lock rod or the adjustment lock rod is plugged in and out, the lock ball is located in the lock ball groove of the telescopic lock rod or the adjustment lock rod, and at this time, one end of the lock ball fits with the outer side of the telescopic lock rod or the adjustment lock rod, and the lock ball presses the position of the lock ball groove it contacts, thereby completing the fixation of the telescopic lock rod or the adjustment lock rod, and the adjustment lock rod can rotate freely in the lock rod slot when locked or released, and the telescopic lock rod can complete the reset action of movement through a reset spring.

[0026] 2. Compared with the prior art, the swivel chair chassis with wire-controlled plug-in and lock and its operation method can complete the telescopic and tilt adjustment of the swivel chair base through a one-time plug-in action wire control, avoiding the trouble of the user needing to continuously hold the control lever during adjustment, and the adjustment control handle drives the adjustment wire control mechanism to control the telescopic, pitch and rotation movements of the swivel chair base. When the adjustment wire control mechanism is stretched, the adjustment wire control mechanism drives the spring pressure plate and the opening and closing slider connected thereto to move through the telescopic spring sheet, and the opening and closing slider slides along the trajectory of the heart-shaped slide groove in the opening and closing slider during the movement. When the opening and closing limit rod is buckled to the tip of the heart-shaped slide groove, the telescopic spring sheet is in a retracted state, and the entire swivel chair base is in an adjustment unlocked state. When the opening and closing limit rod is buckled to the groove of the heart-shaped slide groove, the telescopic spring sheet is in an extended state, and the entire swivel chair base is in an adjustment locked state.

[0027] 3. Compared with the prior art, the swivel chair chassis with wire-controlled plug-in and lock and its operation method can limit the rotation action of the swivel chair, thereby ensuring the safety of the seat when it is used in a lying position. The adjustment is performed by rotating the adjustment control handle. When the adjustment control handle is rotated, the adjustment control handle drives the driving drum and the driving wheel connected thereto to rotate through the adjustment wire control mechanism. During the rotation process, the driving drum drives the transmission wheel to rotate through the belt, and drives the rotation limit column to rotate through the right-angle coupling group. The rotation limit column is buckled in the gear gap of the rotation limit gear through the limiting annular plate, and the rotation action of the rotating limit gear and the lifting piston tube connected thereto is locked, and the driving drum is at the maximum rotation angle at this time. When the rotation limit column rotates to the groove of the limiting annular plate, the rotation limit gear does not contact the limiting annular plate of the rotation limit column, that is, the rotation limit gear can rotate freely at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the main body of the present application when viewed from above;

[0029] Figure 2 This is a schematic diagram of the structure of the movable seat of the present application;

[0030] Figure 3 This is a schematic diagram of the structure of the seesaw of this application;

[0031] Figure 4 This is a schematic diagram of the structure of the adjustment wire control mechanism of the present application;

[0032] Figure 5 This is a schematic diagram of the structure of the adjustment lock rod of the present application;

[0033] Figure 6 This is a schematic diagram of the cross-sectional structure of the lock rod box of the present application;

[0034] Figure 7 This is a schematic diagram of the structure of the driving drum of the present application;

[0035] Figure 8 This is a structural schematic diagram of the lifting piston pipe of the present application;

[0036] Fig. 9 This is a schematic diagram of the structure of the rotation limit column of the present application.

[0037] The accompanying drawings are marked as follows: 1, connecting bottom plate; 11, telescopic gear slot; 12, sliding connecting plate; 13, tilt adjustment shaft; 2, movable seat; 21, spring force adjustment device; 22, piston connecting cone tube; 23, lifting piston tube; 231, lifting air valve; 232, rotating limit gear; 24, sliding adjustment shaft; 241, rotating limit plate; 25, rotating limit column; 251, limit ring plate; 26, right-angle coupling group; 261, driving wheel; 262, coupling group frame; 3, seesaw; 4, lifting control handle; 41, lifting Lowering wire control mechanism; 411, air valve triggering bump; 42, telescopic locking rod; 421, locking ball slot; 5, adjusting control handle; 51, adjusting wire control mechanism; 511, telescopic spring; 512, spring pressure piece; 513, connecting sleeve; 52, driving drum; 521, driving wheel; 53, opening and closing slider; 531, heart-shaped slide groove; 532, anti-rebound inclined block; 54, adjusting box; 541, opening and closing limit rod; 55, adjusting locking rod; 6, locking rod box; 61, locking rod slot; 62, limit ball slot; 63, locking ball; 7, gas pressure rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] As attached Figures 1 to 9 The illustrated swivel chair chassis with wire-controlled plug-in and lock includes a connecting bottom plate 1, a movable seat 2, and a rocker plate 3. A lifting control handle 4 and an adjustment control handle 5 are connected to both sides of the connecting bottom plate 1, and a lifting wire control mechanism 41 is connected inside the lifting control handle 4, and an adjustment wire control mechanism 51 is connected inside the adjustment control handle 5. A lock rod box 6 is connected between the lifting wire control mechanism 41 and the adjustment wire control mechanism 51.

[0040] Among them, both sides of the rocker 3 are connected with sliding connecting plates 12 through a rotating shaft, and the end of the sliding connecting plate 12 away from the rocker 3 is connected to the connecting base plate 1 through a rotating shaft, a sliding adjustment shaft 24 is connected between the movable seat 2 and the rocker 3, and a reclining adjustment shaft 13 is connected between the connecting base plate 1 and the movable seat 2, and a gas pressure rod 7 is arranged in the connecting base plate 1; the connecting base plate 1 is connected to the seat through bolts, which is the main moving part of the entire seat, and the movable seat 2 is the entire movable adjustment part of the seat base, and the rocker 3 is used to assist in movement and control of the adjustment switch, so that the entire seat is more stable when moving and adjusting, the connecting base plate 1 and the movable seat 2 complete the adjustment of the seat reclining angle through the reclining adjustment shaft 13, and the lifting and lowering of the seat can be controlled by stretching the lifting control handle 4 and the lifting wire control mechanism 41 connected thereto, and the extension, reclining and rotation of the seat The adjustment can be controlled by the adjustment control handle 5 and the adjustment wire control mechanism 51 connected thereto, and the lifting control handle 4 and the adjustment control handle 5 form an interlocking structure through the lock rod box 6. The connecting base plate 1 forms a telescopic sliding structure with the seesaw 3 through the sliding connecting plate 12, and the seesaw 3 and the movable seat 2 form a control structure for controlling the sliding of the connecting base plate 1 through the sliding adjustment shaft 24. The movable seat 2 limits the displacement between the seesaw 3 and the connecting base plate 1 through the sliding adjustment shaft 24, thereby limiting the sliding action of the connecting base plate 1, that is, the connecting base plate 1 and the movable seat 2 are telescopically slid synchronously. When the rotation action of the sliding adjustment shaft 24 is locked, the movable seat 2 and the seesaw 3 cannot form a relative rotation movement, so that the connecting base plate 1 and the seesaw 3 cannot move relative to each other, and the connecting base plate 1 can slide on the seesaw 3 through the sliding connecting plate 12.

[0041] As a preferred embodiment, a spring force adjustment device and a piston connection cone tube are connected to the bottom of the movable seat, a lifting piston tube is connected inside the piston connection cone tube, and a lifting air valve is connected to the top of the lifting piston tube, a rotation limit gear is sleeved on the outer side of the lifting air valve, and a rotation limit column is connected inside the movable seat through a bearing, and multiple groups of limiting annular plates arranged in a linear array are welded on the outer side of the rotation limit column; the spring force adjustment device 21 is a common device in the existing seat base, and its internal arrangement is composed of a conical spring, which is mainly used for returning the front and rear angles of the seat, while the piston connection cone tube 22 and the lifting piston tube 23 are connected to the movable part of the bottom of the seat, and the lifting piston tube 23 is used to control the lifting and rotation of the seat, and the lifting action of the lifting piston tube 23 is controlled by the lifting control handle 4 through the lifting air valve 231, and the seat is rotated through the spherical bottom valve of the bottom connecting part of the lifting piston tube 23, and its specific working principle is an existing mature technology.

[0042] As a preferred embodiment, the lifting wire control mechanism 41 is connected with an air valve triggering protrusion 411 and a telescopic locking rod 42, and one side of the air valve triggering protrusion 411 abuts against the lifting air valve 231, the outer side of the adjusting wire control mechanism 51 is sleeved with a driving drum 52 and an adjusting locking rod 55, and two sets of mutually parallel locking rod slots 61 are provided in the lock rod box 6, and the adjusting locking rod 55 and the telescopic locking rod 42 are respectively inserted into the two sets of locking rod slots 61; when the lifting wire control mechanism 41 and the adjusting wire control mechanism 51 are plugged in and out for use, the telescopic locking rods 411 connected to them are respectively connected to the lifting wire control mechanism 41 and the adjusting wire control mechanism 51. 2 and the adjusting lock rod 55 slides in the lock rod slot 61. When the lifting wire control mechanism 41 is stretched, the lifting wire control mechanism 41 drives the air valve triggering protrusion 411 to move. The air valve triggering protrusion 411 is a shuttle-shaped structure with a middle diameter larger than the diameters at both ends. During the movement of the air valve triggering protrusion 411, the protruding portion of the air valve triggering protrusion 411 squeezes the lifting air valve 231, thereby completing the opening and closing of the lifting air valve 231. The specific actions and principles of the lifting control handle 4 controlling the lifting air valve 231 are existing mature technologies and will not be described in detail here.

[0043] As a preferred embodiment, a return spring 422 is connected between the telescopic lock rod 42 and the lock rod slot 61, a locking ball groove 421 is provided on the adjusting lock rod 55 and the telescopic lock rod 42, a limiting ball groove 62 is provided between the two sets of lock rod slots 61, and a lock ball 63 that is interlocked with the locking ball groove 421 is provided in the limiting ball groove 62, and a return spring 423 is connected between the telescopic lock rod 42 and the lock rod box 6; the lock ball 63 is located in the gap formed by the locking ball groove 421 of the telescopic lock rod 42 and the adjusting lock rod 55, and at this time, the telescopic lock rod 42 or the adjusting lock rod 55 can be freely plugged in and out, and when the telescopic lock rod 42 or the adjusting lock rod 55 is plugged in and out, the lock ball 63 is located in the telescopic lock rod 42 Or the locking ball groove 421 of the adjusting locking rod 55, and at this time, one end of the locking ball 63 fits with the outer side of the telescopic locking rod 42 or the adjusting locking rod 55, and the locking ball 63 presses the position of the locking ball groove 421 it contacts, thereby completing the fixation of the telescopic locking rod 42 or the adjusting locking rod 55, and the adjusting locking rod 55 can rotate freely in the locking rod slot 61 when locked or relaxed, the telescopic locking rod 42 can complete the reset action of the movement through the reset spring 422, and when the telescopic locking rod 42 is in the initial position, the lifting air valve 231 is controlled to be in a closed state by the air valve triggering protrusion 411, and the telescopic locking rod 42 cannot rotate in the locking rod slot 61 due to the connection of the reset spring 422.

[0044] As a preferred embodiment, one end of the adjustment wire control mechanism 51 is connected to a telescopic spring sheet 511, one end of the telescopic spring sheet 511 is connected to a spring pressure sheet 512, and one side of the spring pressure sheet 512 is attached to the air valve at one end of the gas pressure rod 7, and the side of the movable seat 2 close to the spring pressure sheet 512 is connected to an opening and closing slider 53, and a heart-shaped slide groove 531 is arranged in the opening and closing slider 53, and two groups of anti-rebound inclined blocks 532 that are centrally symmetrical to each other are arranged in the heart-shaped slide groove 531; the adjustment control handle 5 drives the adjustment wire control mechanism 51 to control the telescopic, pitching and rotation movements of the swivel chair base, and when the adjustment wire control mechanism 51 is stretched, the adjustment wire control mechanism 51 drives the spring pressure sheet 512 and the opening and closing slider 53 connected thereto to move through the telescopic spring sheet 511, and the spring pressure sheet 512 squeezes the air valve of the gas pressure rod 7 during the movement, and the gas pressure rod 7 pushes the spring pressure sheet 512 to move, and the telescopic principle of the gas pressure rod 7 is the same as the principle of the lifting piston tube 23.

[0045] As a preferred embodiment, an adjusting box 54 is provided in the movable seat 2 with which the opening and closing slider 53 is slidably connected, and the opening and closing slider 53 is connected to the inner wall of the adjusting box 54 through a spring, and an opening and closing limit rod 541 is connected to the adjusting box 54 through a rotating shaft, and one end of the opening and closing limit rod 541 is connected to the heart-shaped slide groove 531; the opening and closing slider 53 slides in the adjusting box 54, and the opening and closing limit rod 541 slides along the trajectory of the heart-shaped slide groove 531 in the opening and closing slider 53 during the movement. When the opening and closing limit rod 541 is buckled to the tip of the heart-shaped slide groove 531, The telescopic spring 511 is in a retracted state, and the entire swivel chair base is in an adjusted unlocked state at this time. When the opening and closing limit rod 541 is snapped into the groove of the heart-shaped slide groove 531, the telescopic spring 511 is in an extended state, and the entire swivel chair base is in an adjusted locked state at this time. The inclination directions of the two sets of anti-rebound bevel blocks 532 are on the tangent of the same circle, and when the opening and closing limit rod 541 slides in the heart-shaped slide groove 531, it can only rotate along the direction of the oblique side of the anti-rebound bevel block 532, thereby preventing the opening and closing limit rod 541 from shifting when it has not reached the locked position through the anti-rebound bevel block 532.

[0046] As a preferred embodiment, two groups of rotation limit plates 241 are sleeved on the outer sides of the sliding adjustment shaft 24 and the tilt adjustment shaft 13, and the spring pressure plate 512 is connected between the two groups of rotation limit plates 241, and the spring pressure plate 512 is connected to the sliding adjustment shaft 24 and the tilt adjustment shaft 13 through bearings, and the spring pressure plate 512 is connected to a group of rotation limit plates 241 through a spring; when the swivel chair base is in the adjustment locked state, the spring pressure plate 512 is pressed on one side of a group of rotation limit plates 241 by the elastic force of the spring, thereby limiting the rotation movement of the sliding adjustment shaft 24 and the tilt adjustment shaft 13 through the pressing action, and when the swivel chair base is in the adjustment unlocked state, the spring pressure plate 512 is away from the rotation limit plate 241 it is attached to, and the sliding adjustment shaft 24 and the tilt adjustment shaft 13 can rotate freely, so that the seat can be freely adjusted forward and backward and tilt.

[0047] As a preferred embodiment, the outer side of the adjusting wire control mechanism 51 is sleeved with a connecting sleeve 513, and the outer side of the connecting sleeve 513 is sleeved with a driving rotary cylinder 52. The connecting sleeve 513 and the driving rotary cylinder 52 are slidably connected by mutually engaging protrusions and grooves, and the driving rotary cylinder 52 is connected to the movable seat 2 through a bearing ring, and the outer side of the driving rotary cylinder 52 is sleeved with a driving wheel 521; the adjusting wire control mechanism 51 will not affect the position movement of the driving rotary cylinder 52 during the telescopic movement, and the driving rotary cylinder 52 will not affect the position of the adjusting wire control mechanism 51 when rotating. When the connecting sleeve 513 is driven to rotate by the adjusting wire control mechanism 51, the driving rotary cylinder 52 and the driving rotary wheel 521 connected thereto are driven to rotate by the connecting sleeve 513, and the maximum rotation angle of the driving rotary cylinder 52 is 3 / 4 of a circle, and due to the positional relationship between the spring pressure plate 512 and the sliding adjustment shaft 24, when the spring pressure plate 512 rotates to contact the sliding adjustment shaft 24, it cannot continue to rotate.

[0048] As a preferred embodiment, the groove depth of the limiting annular plate 251 is 1.2-1.5 times the tooth height of the rotating limiting gear 232, and the spacing between adjacent grooves is equal to an integer multiple of the gear tooth pitch. Multiple groups of limiting annular plates 251 are provided with grooves located on the same straight line. One end of the rotating limiting column 25 is connected to a right-angle coupling group 26, and the end of the right-angle coupling group 26 away from the rotating limiting column 25 is connected to a transmission wheel 261, and the transmission wheel 261 is connected to the driving wheel 521 through a belt, and the outer sides of the transmission wheel 261 and the driving wheel 521 are both pasted with a non-slip silicone layer; the rotating limiting column 25 is buckled in the gear gap of the rotating limiting gear 232 through the limiting annular plate 251, and at this time, the rotating action of the rotating limiting gear 232 and the lifting piston tube 23 connected thereto is locked, and at this time, the driving drum 52 is at the maximum rotation angle, and when the rotating limiting column 25 rotates to When the limit ring plate 251 is in the groove, the rotation limit gear 232 does not contact the limit ring plate 251 of the rotation limit column 25, that is, the rotation limit gear 232 can rotate freely at this time, and the right-angle coupling group 26 is a right-angle transmission mechanism composed of three couplings, which can transmit the rotation force of the driving drum 52 to the rotation limit column 25. The right-angle coupling group 26 is fixedly connected to the movable seat 2 through the coupling group frame 262. During the rotation of the driving drum 52, the driving wheel 261 is driven by the belt to rotate, and the rotation limit column 25 is driven by the right-angle coupling group 26 to rotate, and the anti-skid silicone layer on the outside of the transmission wheel 261 and the driving wheel 521 can be deformed to a certain extent, and when the belt tension exceeds the threshold, the anti-skid silicone layer can automatically trigger elastic deformation to protect the transmission system. After testing, the linkage locking response time of the present design is ≤0.3 seconds.

[0049] As a preferred embodiment, a swivel chair chassis with wire-controlled plug-in and lock and an operating method thereof, the operating method comprising the following steps:

[0050] Step 1: First, the swivel chair can be adjusted through the swivel chair base. When the swivel chair base is raised or lowered, the lifting and lowering air valve 231 can be controlled by stretching the lifting and lowering control handle 4, thereby controlling the lifting and lowering movement of the lifting and lowering piston tube 23 through the lifting and lowering air valve 231, thereby completing the lifting and lowering of the swivel chair base;

[0051] Step 2: When adjusting the telescopic and reclining state of the swivel chair, the state of the swivel chair is adjusted by adjusting the control handle 5, and the adjustment control handle 5 drives the adjustment wire control mechanism 51 to move, and the adjustment wire control mechanism 51 drives the spring pressing piece 512 and the opening and closing slider 53 to move, and the opening and closing slider 53 is fixed in the adjustment box 54 during the movement, and the telescopic and reclining state of the swivel chair is unlocked at this time;

[0052] Step 3: The spring pressing piece 512 releases the lock on the sliding adjustment shaft 24 and the tilt adjustment shaft 13 during the movement, and the connecting base plate 1 can slide on the movable seat 2 and the rocker plate 3;

[0053] Step 4: The base plate 1 can be simultaneously connected to swing forward and backward on the movable seat 2 through the tilt adjustment shaft 13, and after the adjustment is completed, the state of the swivel chair can be locked by adjusting the control handle 5 again;

[0054] Step 5: When the rotation of the swivel chair needs to be locked, it can be adjusted by rotating the adjustment control handle 5. When the adjustment control handle 5 is rotated, the adjustment control handle 5 drives the driving drum 52 and the driving wheel 521 connected thereto to rotate through the adjustment wire control mechanism 51. During the rotation process, the driving wheel 521 drives the rotating limit column 25 to rotate through the right-angle coupling group 26, thereby completing the locking of the rotation of the lifting piston tube 23.

[0055] The working process of the present application is as follows: first, the swivel chair can be adjusted through the swivel chair base. When the swivel chair base is lifted or lowered, the lifting and lowering air valve 231 can be opened or closed by stretching the lifting and lowering control handle 4. When the lifting and lowering control handle 4 and the lifting and lowering wire control mechanism 41 connected thereto are stretched or stretched, the lifting and lowering wire control mechanism 41 drives the air valve triggering protrusion 411 to move. The air valve triggering protrusion 411 is a shuttle-shaped structure with a middle diameter larger than the diameters at both ends. During the movement of the air valve triggering protrusion 411, the protruding part of the protruding part squeezes the lifting and lowering air valve 231, thereby completing the opening and closing of the lifting and lowering air valve 231. The lifting and lowering movement of the lifting and lowering piston tube 23 is controlled by the lifting and lowering air valve 231. The swivel chair base is lifted by the lifting and lowering piston tube 23, thereby completing the lifting and lowering of the swivel chair base.

[0056] When adjusting the extension and tilt of the swivel chair, the state of the swivel chair is adjusted by adjusting the control handle 5, and the adjustment control handle 5 drives the adjustment wire control mechanism 51 to control the extension, pitch and rotation of the swivel chair base. When the adjustment wire control mechanism 51 is stretched, the adjustment wire control mechanism 51 drives the spring pressing piece 512 and the opening and closing slider 53 connected thereto to move through the extension spring sheet 511, and the opening and closing slider 53 opens and closes the limit rod 541 along the heart-shaped slide groove 53 in the opening and closing slider 53 during the movement. 1, when the opening and closing limit rod 541 is buckled to the tip of the heart-shaped slide groove 531, the telescopic spring piece 511 is in a retracted state, and the entire swivel chair base is in an adjusted unlocked state, and when the opening and closing limit rod 541 is buckled to the groove of the heart-shaped slide groove 531, the telescopic spring piece 511 is in an extended state, and the entire swivel chair base is in an adjusted locked state, and the spring pressing piece 512 squeezes the air valve of the gas pressure rod 7 during the movement, and the gas pressure rod 7 pushes the spring pressing piece 512 to move;

[0057] When the swivel chair base is in the adjustment locked state, the spring pressing piece 512 is pressed against one side of a set of rotation limit plates 241 by the elastic force of the spring, thereby limiting the rotation of the sliding adjustment shaft 24 and the reclining adjustment shaft 13 by the pressing action. When the swivel chair base is in the adjustment unlocked state, the spring pressing piece 512 is away from the rotation limit plates 241 it is attached to, and the sliding adjustment shaft 24 and the reclining adjustment shaft 13 can rotate freely.

[0058] When the seat is unlocked, the connecting base plate 1 and the movable seat 2 are connected through the reclining adjustment shaft 13 to adjust the seat reclining angle, and the connecting base plate 1 can slide on the rocker 3 through the sliding connecting plate 12. When the connecting base plate 1 and the movable seat 2 move relatively, the adjusting block 28 of the movable slide plate 26 slides in the telescopic gear slot 11 through the sliding adjustment slot 27, and the telescopic gear slot 11 has a plurality of protruding gear slots. During the movement of the adjusting block 28, the limiting block 282 passes through the plurality of gear slots in the telescopic gear slot 11 in sequence, and during the movement of the adjusting block 28, the spring between the adjusting block 28 and the sliding adjustment slot 27 is squeezed by the resetting block 281 to deform, and when entering the gear slot in the telescopic gear slot 11, the adjusting block 28 is engaged in the gear slot of the telescopic gear slot 11 through the rebound of the spring, thereby completing the locking of the moving position, and after the adjustment is completed, the state of the swivel chair can be locked by pulling the adjustment control handle 5 again;

[0059] The lifting control handle 4 and the adjusting control handle 5 form an interlocking structure through the lock rod box 6. When the telescopic lock rod 42 or the adjusting lock rod 55 is inserted or pulled out, the lock ball 63 is located in the lock ball groove 421 of the telescopic lock rod 42 or the adjusting lock rod 55, and at this time, one end of the lock ball 63 is in contact with the outer side of the telescopic lock rod 42 or the adjusting lock rod 55, and the lock ball 63 presses the position of the lock ball groove 421 it contacts, thereby completing the fixing of the telescopic lock rod 42 or the adjusting lock rod 55, and the adjusting lock rod 55 can rotate freely in the lock rod slot 61 when locked or released, and the telescopic lock rod 42 can complete the reset action of the movement through the reset spring 422;

[0060] When the swivel chair needs to be locked in rotation, the adjustment control handle 5 can be rotated to adjust the swivel chair. When the adjustment control handle 5 is rotated, the adjustment control handle 5 drives the driving drum 52 and the driving wheel 521 connected thereto to rotate through the adjustment wire control mechanism 51. During the rotation process, the driving drum 52 drives the driving wheel 261 to rotate through the belt, and drives the rotation limit column 25 to rotate through the right-angle coupling assembly 26.

[0061] The rotation limit column 25 is clamped in the gear gap of the rotation limit gear 232 through the limit ring plate 251, and the rotation movement of the rotation limit gear 232 and the lifting piston tube 23 connected thereto is locked, and the driving drum 52 is at the maximum rotation angle at this time. When the rotation limit column 25 rotates to the groove of the limit ring plate 251, the rotation limit gear 232 does not contact the limit ring plate 251 of the rotation limit column 25, that is, the rotation limit gear 232 can rotate freely at this time.

Claims

1. A swivel chair chassis with wire-controlled plug-in and lock, comprising a connecting bottom plate (1), a movable seat (2) and a rocker plate (3), characterized in that: The two sides of the connecting bottom plate (1) are respectively connected to a lifting control handle (4) and an adjusting control handle (5), and the lifting control handle (4) is connected to a lifting wire control mechanism (41), and the adjusting control handle (5) is connected to an adjusting wire control mechanism (51), and a locking rod box (6) is connected between the lifting wire control mechanism (41) and the adjusting wire control mechanism (51); Wherein, both sides of the seesaw (3) are connected to sliding connecting plates (12) via rotating shafts, and one end of the sliding connecting plate (12) away from the seesaw (3) is connected to the connecting base plate (1) via a rotating shaft, a sliding adjustment rotating shaft (24) is connected between the movable seat (2) and the seesaw (3), and a tilt adjustment rotating shaft (13) is connected between the connecting base plate (1) and the movable seat (2), and a gas pressure rod (7) is arranged inside the connecting base plate (1).

2. The swivel chair chassis with wired plug-in and lock according to claim 1, characterized in that: The bottom of the movable seat (2) is connected to a spring force adjustment device (21) and a piston connecting cone tube (22); a lifting piston tube (23) is connected inside the piston connecting cone tube (22); a lifting air valve (231) is connected to the top of the lifting piston tube (23); a rotating limit gear (232) is sleeved on the outer side of the lifting air valve (231); a rotating limit column (25) is connected inside the movable seat (2) via a bearing; and a plurality of groups of limiting annular plates (251) arranged in a linear array are welded to the outer side of the rotating limit column (25).

3. The swivel chair chassis with wired plug-in and lock according to claim 2, characterized in that: The lifting wire control mechanism (41) is connected to a gas valve triggering protrusion (411) and a telescopic locking rod (42), and one side of the gas valve triggering protrusion (411) abuts against the lifting gas valve (231). The outer side of the adjustment wire control mechanism (51) is sleeved with a driving drum (52) and an adjustment locking rod (55). Two groups of mutually parallel locking rod slots (61) are arranged in the locking rod box (6), and the adjustment locking rod (55) and the telescopic locking rod (42) are respectively inserted into the two groups of locking rod slots (61).

4. The swivel chair chassis with wired plug-in and lock according to claim 3, characterized in that: A return spring (422) is connected between the telescopic lock rod (42) and the lock rod slot (61); a locking ball slot (421) is provided on both the adjustment lock rod (55) and the telescopic lock rod (42); a limiting ball slot (62) is provided between the two sets of lock rod slots (61); a lock ball (63) which is engaged with the locking ball slot (421) is provided in the limiting ball slot (62); and a return spring (423) is connected between the telescopic lock rod (42) and the lock rod box (6).

5. The swivel chair chassis with wire-controlled plug-in and lock according to claim 4, characterized in that: One end of the regulating wire control mechanism (51) is connected to a telescopic spring (511), one end of the telescopic spring (511) is connected to a spring pressure sheet (512), and one side of the spring pressure sheet (512) is attached to the air valve at one end of the air pressure rod (7), and the side of the movable seat (2) close to the spring pressure sheet (512) is connected to an opening and closing slider (53), and a heart-shaped slide groove (531) is arranged in the opening and closing slider (53), and two groups of anti-rebound inclined blocks (532) that are centrally symmetrical to each other are arranged in the heart-shaped slide groove (531).

6. The swivel chair chassis with wired plug-in and lock according to claim 5, characterized in that: The movable seat (2) is provided with an adjustment box (54) slidably connected to the opening and closing slider (53), and the opening and closing slider (53) is connected to the inner wall of the adjustment box (54) via a spring. The adjustment box (54) is connected with an opening and closing limit rod (541) via a rotating shaft, and one end of the opening and closing limit rod (541) is connected to the heart-shaped slide groove (531).

7. The swivel chair chassis with wire-controlled plug-in and lock according to claim 5, characterized in that: Two groups of rotation limit plates (241) are sleeved on the outer sides of the sliding adjustment shaft (24) and the tilt adjustment shaft (13); the spring pressing piece (512) is connected between the two groups of rotation limit plates (241); the spring pressing piece (512) is connected to the sliding adjustment shaft (24) and the tilt adjustment shaft (13) via bearings; and the spring pressing piece (512) is connected to a group of rotation limit plates (241) via a spring.

8. The swivel chair chassis with wired plug-in and lock according to claim 2, characterized in that: A connecting sleeve (513) is connected between the regulating wire control mechanism (51) and the driving rotating cylinder (52); the connecting sleeve (513) and the driving rotating cylinder (52) are slidably connected via mutually engaging protrusions and grooves; the driving rotating cylinder (52) is connected to the movable seat (2) via a bearing ring; and a driving rotating wheel (521) is sleeved on the outer side of the driving rotating cylinder (52).

9. The swivel chair chassis with wire-controlled plug-in and lock according to claim 2, characterized in that: The depth of the groove of the limiting annular plate (251) is 1.2-1.5 times the tooth height of the rotating limiting gear (232), and the spacing between adjacent grooves is equal to an integral multiple of the gear tooth pitch. The plurality of groups of limiting annular plates (251) are provided with grooves located on the same straight line. One end of the rotating limiting column (25) is connected to a right-angle coupling group (26), and one end of the right-angle coupling group (26) away from the rotating limiting column (25) is connected to a transmission wheel (261). The transmission wheel (261) is connected to the driving wheel (521) via a belt, and the outer sides of the transmission wheel (261) and the driving wheel (521) are both adhered with an anti-slip silicone layer.

10. A method for operating a swivel chair chassis with wire-controlled plug-in and lock, using the swivel chair chassis with wire-controlled plug-in and lock as claimed in any one of claims 1 to 9, characterized in that: The operation method comprises the following steps: Step 1: First, the swivel chair can be adjusted through the swivel chair base. When the swivel chair base is raised or lowered, the lifting and lowering air valve (231) can be controlled by stretching the lifting and lowering control handle (4), thereby controlling the lifting and lowering movement of the lifting and lowering piston tube (23) through the lifting and lowering air valve (231), thereby completing the lifting and lowering of the swivel chair base; Step 2: When adjusting the telescopic and reclining state of the swivel chair, the state of the swivel chair is adjusted by adjusting the control handle (5), the adjusting control handle (5) drives the adjusting wire control mechanism (51) to move, and the adjusting wire control mechanism (51) drives the spring pressing piece (512) and the opening and closing slider (53) to move, and the opening and closing slider (53) is fixed in position in the adjustment box (54) during the movement, and the telescopic and reclining state of the swivel chair is unlocked at this time; Step 3: The spring pressing piece (512) releases the lock on the sliding adjustment shaft (24) and the tilt adjustment shaft (13) during the movement, and the connecting base plate (1) can slide on the movable seat (2) and the rocker plate (3); Step 4: The base plate (1) is connected to the movable seat (2) so that it can be swung forward and backward through the tilt adjustment shaft (13), and after the adjustment is completed, the state of the swivel chair can be locked by adjusting the control handle (5) again; Step 5: When the swivel chair needs to be locked in rotation, the swivel chair can be locked by rotating the adjustment control handle (5). When the adjustment control handle (5) is rotated, the adjustment control handle (5) drives the driving drum (52) and the driving wheel (521) connected thereto to rotate through the adjustment wire control mechanism (51). During the rotation process, the driving wheel (521) drives the rotation limit column (25) to rotate through the right-angle coupling group (26), thereby completing the locking of the rotation of the lifting piston tube (23).

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