CN219108918U - Locking and adjusting mechanism used in table and table - Google Patents

Abstract

The utility model discloses a locking and adjusting mechanism used in a table and the table, comprising a fixed branch pipe, a sliding branch pipe, an adjusting push rod, an upward pushing block and a traction component; a lifting positioning mechanism is arranged between the sliding branch pipe and the fixed branch pipe, and comprises a clamping groove arranged in the fixed branch pipe and a clamping bead arranged on the sliding branch pipe; the adjusting push rod is provided with a matching seat in limit matching with the clamping beads, and the matching seat comprises a lower stop block positioned at the bottom and a shrinkage block positioned at the upper end of the lower stop block and relatively shrunk in width; in the locking state, the lower stop block is aligned with the clamping beads up and down and limits the clamping beads to be separated from the clamping grooves; an adjusting switch is arranged at the end part of the traction component, and the adjusting switch is controlled to control the push-up block to transversely move and reset; under the unblock state, the action regulating switch drives the sideslip of upper push rod in order to promote the regulating push rod and sink from the locking position and make shrink piece and card pearl up-and-down alignment, card pearl can roll in order to withdraw from the draw-in groove towards the slip branch pipe inside.

Description

Locking and adjusting mechanism used in table and table

Technical Field

The utility model relates to the field of lifting tables, in particular to a locking and adjusting mechanism used in a table and the table.

Background

For various liftable tables or tea tables, the most basic is to ensure that the height of the table plate is unchanged after lifting is stopped, namely an actuator for driving the table plate to lift needs to have locking capability, so that the table plate can be supported to stay at the corresponding height; further, the table needs to have an unlocking actuator or a control switch for controlling the lifting of the table, which can realize the lifting movement of the table.

In the current common electric locking and adjusting mechanism used in the table, an actuator adopts a motor to drive an electric push rod or control a screw rod nut to move so as to realize lifting movement of the table; a hand controller with an adjusting button is arranged on the table top or the table bottom, a user can control the actuator to lift the table by only remotely controlling the hand controller, and the table is stopped by the motor to stay at a corresponding height; the lifting table needs to be plugged in for use, and the use is limited; and the motor and other driving structures are arranged, so that the cost is relatively high. In pneumatic lifting tables, a self-locking gas spring is often used as an actuator, and the self-locking gas spring is controlled to be self-locked or unlocked through a mechanical switch; the pneumatic lifting table has lower cost, simpler structure and lighter weight than the electric lifting table, but the price of the self-locking gas spring is still higher; moreover, the cost of using the hand controller as a control switch is high, and the mechanical switch is generally arranged protruding from the desk plate, is abrupt and is not attractive.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a locking and adjusting mechanism used in a table and the table; an adjusting push rod is arranged in the sliding branch pipe, and the adjusting push rod is in limit fit with the clamping beads through a fit seat at the lower end of the adjusting push rod; the clamping beads can be regulated to be stably clamped into the clamping grooves or can be withdrawn from the clamping grooves only by controlling the regulating push rod to slide up and down; the control of the adjusting push rod is very convenient, and the adjusting push rod can be controlled to move up and down only by driving the upper push block to move transversely through the action of the adjusting switch; thereby realizing lifting locking or unlocking between the fixed branch pipe and the locking branch pipe, and the adjustment operation is very simple, convenient and easy; then the lifting adjusting device is applied in the table, so that the lifting adjusting of the table plate is very convenient.

The technical scheme of the utility model is realized as follows:

a locking and adjusting mechanism used in a table comprises a fixed branch pipe, a sliding branch pipe, an adjusting push rod, an upward pushing block and a pulling assembly, wherein the sliding branch pipe is arranged at the upper end of the fixed branch pipe in a sliding mode, the adjusting push rod is arranged in the sliding branch pipe in a sliding mode, the upward pushing block is in pushing and abutting fit with the upper end of the adjusting push rod, and the pulling assembly is used for controlling the upward pushing block to transversely move; a lifting positioning mechanism is arranged between the sliding branch pipe and the fixed branch pipe, and comprises clamping grooves longitudinally arranged in the fixed branch pipe at intervals and clamping beads arranged on the sliding branch pipe; the clamping beads can protrude out of the sliding branch pipes and are clamped with the clamping grooves or contracted in the sliding branch pipes to withdraw from the clamping grooves; the adjusting push rod is provided with a matching seat in limit matching with the clamping beads, and the matching seat comprises a lower stop block positioned at the bottom and a shrinkage block positioned at the upper end of the lower stop block and relatively shrunk in width; in the locking state, the lower stop block is aligned with the clamping beads up and down and limits the clamping beads to be separated from the clamping grooves; an adjusting switch is arranged at the end part of the traction component, and the adjusting switch is controlled to control the push-up block to transversely move and reset; under the unblock state, the action regulating switch drives the sideslip of upper push rod in order to promote the regulating push rod and sink from the locking position and make shrink piece and card pearl up-and-down alignment, card pearl can roll in order to withdraw from the draw-in groove towards the slip branch pipe inside.

Preferably, the adjusting push rod is arranged along the length direction of the sliding branch pipe, and the matching seat is arranged at the bottom end of the adjusting push rod; the matching seat is of a convex structure, and the contraction block protrudes upwards from the middle position of the lower stop block.

Preferably, the sliding branch pipe comprises side plates respectively positioned at the left side and the right side, a left-right penetrating through hole is arranged at the lower part of each side plate, the clamping beads are arranged in the through holes and are configured to move left and right only in the through holes; in the locking state, the lower stop block is aligned up and down with the through hole and props against the clamping bead; in the unlocking state, the regulating push rod moves downwards to enable the contraction block to be aligned with the passing opening up and down, and the clamping beads can roll towards the inside of the sliding branch pipe to withdraw from the clamping groove; and the shrinkage block can also be propped against the clamping beads to limit the clamping beads from being separated from the through openings. The clamping beads are limited in the through openings, so that the clamping beads and the sliding branch pipes are kept relatively fixed in the vertical direction; and is in limit fit with the clamping beads through a fit seat; so that the clamping beads can be adjusted to be clamped into or withdrawn from the clamping grooves only by controlling the adjusting push rod to slide up and down.

Preferably, an upper inclined block is arranged at the upper end of the adjusting push rod, and the end part of the upper inclined block is provided with a first inclined surface which is inclined; the bottom end of the upper pushing block is correspondingly provided with a second inclined plane which is matched with the first inclined plane up and down; the first inclined surface and the second inclined surface are configured to enable the horizontal movement of the push-up block towards the direction of the traction assembly to act on the adjusting push rod to move downwards from the locking position to the unlocking position. And then the transverse movement of the push-up block can be controlled to be converted into the vertical movement of the control push rod.

Preferably, a longitudinal elastic piece is arranged between the bottom end of the matching seat and the bottom end of the sliding branch pipe; the unlocking of the downward movement of the adjusting push rod will press down on the elastic member, which is elastically compressed to provide an elastic force for resetting the adjusting push rod up again to the locking position. Therefore, a user only needs to act on the adjusting switch to rotate, and the adjusting push rod can be automatically reset.

Preferably, the pulling assembly comprises a switch mounting seat and a horizontal and transverse pull rod assembly; the adjusting switch is rotatably arranged on the switch mounting seat; one end of the pull rod assembly is connected with the switch mounting seat, and the other end of the pull rod assembly extends into the upper end of the sliding branch pipe and is connected with the push-up block; the adjusting switch is a spanner, and the spanner can be rotated to drive the pull rod assembly to pull the upper pushing block to transversely move; and the adjusting switch can automatically and elastically rotate to return, so that the pull rod assembly can correspondingly drive the push-up block to translate and reset again. The traction component is a common pull rod adjusting device in the prior market and can be directly purchased; and the cost is lower.

Preferably, the clamping beads are spherical bodies, and the clamping grooves are arc-shaped grooves. When the sliding branch pipe in the unlocking state moves up and down relative to the fixed branch pipe under the action of external force, the arc-shaped inner wall of the clamping groove is in contact with the arc surface of the clamping bead in an abutting mode, and the clamping bead is better pushed.

Preferably, a corner which is inclined is arranged between the contraction block and the lower stop block; when the adjusting push rod is reset to the locking position from the unlocking position, the corner pushes the clamping beads to roll into the clamping grooves. The pushing effect is better, and the clamping phenomenon can not exist; so that the movement of the clamping beads is smoother.

Preferably, a limiting mechanism is further arranged between the adjusting push rod and the sliding branch pipe, and comprises a longitudinal guide groove arranged on the adjusting push rod and a limiting pin penetrating through the guide groove and connected with the sliding branch pipe. Therefore, the adjusting push rod can only move between the locking position and the unlocking position, and the structure is more stable.

A table comprises a table plate, feet, a telescopic sleeve arranged between the table plate and the feet and capable of lifting, and a locking and adjusting mechanism used in the table; the fixed branch pipe and the sliding branch pipe are arranged in the telescopic pipe; the traction assembly is arranged at the bottom end of the desk plate assembly, and the regulating switch is close to the side edge of the desk plate.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

firstly, gear lifting adjustment can be carried out between the fixed branch pipe and the movable branch pipe through the cooperation of the clamping beads and the clamping grooves; the clamping column can move left and right in the passing opening of the movable branch pipe; an adjusting push rod is arranged in the sliding branch pipe, and the lower end of the adjusting push rod is in limit fit with the clamping beads through a fit seat at the lower end of the adjusting push rod; the matching seat is in a convex structure; in the locking state, the lower stop block of the matching seat is aligned with the clamping beads up and down and limits the clamping beads to be separated from the clamping grooves; in the unlocking state, the adjusting push rod sinks from the locking position to enable the contraction block of the matching seat to be aligned with the clamping bead up and down, so that the clamping bead can roll towards the inside of the sliding branch pipe to withdraw from the clamping groove; thereby controlling the adjusting push rod to move up and down to control locking and unlocking of the clamping beads. The control of the adjusting push rod is very convenient; only the pull rod assembly is driven by the rotation adjusting switch to act on the push-up block to transversely move; the lifting locking or unlocking of the fixed branch pipe and the movable branch pipe can be realized by only acting on the rotation of the regulating switch by a user, and the regulating operation is very simple, convenient and easy. Therefore, the locking and adjusting mechanism is applied to the table, and the lifting of the table plate can be conveniently adjusted.

Secondly, after a user releases the adjusting switch to enable the upper pushing block to transversely reset, the adjusting push rod has a trend of upwards resetting to a locking state under the action of the elastic piece; then, the movement trend that the push rod can provide for the clamping beads to roll into the clamping grooves is regulated; when the table plate moves to the position that the clamping beads are aligned with the clamping grooves at the corresponding positions, the table plate can be automatically clamped into the clamping grooves; so that the user does not need to find the position and lock by himself; the design is ingenious.

Drawings

FIG. 1 is a schematic perspective view of an adjusting mechanism according to an embodiment of the utility model

FIG. 2 is a schematic perspective view of the adjusting mechanism according to the embodiment of the present utility model;

FIG. 3 is a schematic perspective view of the bottom of a table top according to an embodiment of the present utility model;

FIG. 4 is a structural view showing a fixing leg and a gas spring connected to a lower sleeve in an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a sliding branch pipe and a gas spring matched with an upper sleeve in an embodiment of the utility model;

FIG. 6 is a schematic view showing the internal structure of the adjusting mechanism in an unlocked state according to the embodiment of the utility model;

figure 7 is a cross-sectional view of the table in the locked position in accordance with an embodiment of the utility model;

FIG. 8 is a cross-sectional view of the adjustment mechanism in a locked position in an embodiment of the utility model;

fig. 9 is a cross-sectional view of the adjustment mechanism in an unlocked position in an embodiment of the utility model.

The reference numerals are as follows: a telescopic sleeve 1, a foot 2, a table plate 3, a lower sleeve 4, a lower end plate 401, an upper sleeve 5 and an upper end plate 501; a gas spring 6; a lock adjustment mechanism 7; a fixed branch pipe 8; a sliding branch pipe 9; a side plate 901; a clamping groove 10; a clamping bead 11; adjusting the push rod 12; an upper sloping block 12a; a first inclined surface 1201; a push-up block 13; a second slope 1301; a pulling assembly 14; a through opening 15; a mating seat 16; corner 16a; a lower stopper 17; a shrinkage block 18; an elastic member 19; a pull rod assembly 20; a switch mount 21; an adjustment switch 22; a guide groove 23; and a stopper pin 24.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, the term "at least one" refers to one or more, unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific embodiments of the present utility model are as follows:

as shown in fig. 1-9, the utility model provides a locking and adjusting mechanism used in a table tool and the table tool, wherein the table tool comprises a telescopic tube 1, a foot 2 arranged at the bottom end of the telescopic tube 1 and a table plate 3 arranged at the top end of the telescopic tube 1; the telescopic sleeve 1 comprises a lower sleeve 4 and an upper sleeve 5 which are in telescopic sleeve joint fit; wherein, a longitudinal gas spring 6 is arranged in parallel in the interior between the lower sleeve 4 and the upper sleeve 5; the gas spring 6 is configured as a free gas spring, which is used for assisting the lifting and lowering of the table plate 3. The locking and adjusting mechanism 7 is also arranged in the telescopic tube 1 and is arranged side by side with the gas spring, and the locking and adjusting mechanism 7 is configured to lock and unlock the telescopic movement between the lower tube 4 and the upper tube 5.

For the free type gas spring, when a user applies an upward or downward force to the table plate 3 to adjust the lifting of the table plate 3; the elasticity of the gas spring 6 can assist the table plate 3 to ascend, so that a user can easily and laborsaving when adjusting the table plate 3 to ascend. Or the elasticity of the gas spring 6 can slow down the descending speed of the table plate 3, so that the table plate 3 is regulated to be gentle in descending and has good damping sense; thereby making the user feel comfortable by adjusting the lifting or lowering operation of the table plate 3. However, the free gas spring does not have a locking function, and when the table plate 3 bears a certain weight of articles, the table plate 3 automatically sinks; if the self-locking gas spring is adopted, the cost is higher; and the support is not strong, so that the support is not suitable for mass production and sale. Therefore, the utility model further arranges a locking adjusting mechanism 7 in the lower sleeve 4 and the upper sleeve 5 to lock and unlock the telescopic movement of the lower sleeve 4 and the upper sleeve 5; so that the gas spring 6 can assist in lifting adjustment of the table plate 3 during unlocking; when locked, the desk plate 3 can be locked; in addition, the fixed branch pipes 8 and the sliding branch pipes 9 can also provide supporting function for the table plate 3 and the feet 2, so that the table structure is more stable; play a double role.

As shown in fig. 3-6, the upper sleeve 5 includes an upper end plate 501, and the upper end plate 501 is fixedly connected with the table 3; the lower sleeve 4 comprises a lower end plate 401, which lower end plate 401 is fixedly connected to the foot 2. The gas spring 6 comprises a cylinder body positioned at the bottom and a piston rod positioned at the top, the bottom end of the gas spring 6 is fixedly connected with the lower end plate 401 of the lower sleeve 4, and the top end of the gas spring 6 is fixedly connected with the upper end plate 501; so that in the unlocking situation, when the upper sleeve 5 moves telescopically relative to the lower sleeve 4, the gas spring 6 can correspondingly and synchronously stretch to provide elasticity.

As shown in fig. 1, 2 and 6-9, the locking and adjusting mechanism 7 comprises a fixed branch pipe 8 longitudinally arranged beside the gas spring 6, a sliding branch pipe 9 arranged at the upper end of the fixed branch pipe 8 in a sliding telescopic manner, and an adjusting assembly arranged between the fixed branch pipe 8 and the sliding branch pipe 9. The specific method is as follows: the bottom end of the fixed branch pipe 8 is fixedly connected with the lower end plate 401, and the upper end of the sliding branch pipe 9 is fixedly connected with the upper end plate 501; so that the telescopic movement of the sliding branch 9 is synchronized with the telescopic movement between the upper sleeve 5 and the lower sleeve 4. A lifting positioning mechanism is arranged between the fixed branch pipe 8 and the sliding branch pipe 9, and comprises clamping grooves 10 longitudinally arranged on the inner walls of the two sides of the fixed branch pipe 8 at intervals and clamping beads 11 correspondingly arranged on the two sides of the bottom of the sliding branch pipe 9 and capable of horizontally and movably stretching out or shrinking. The sliding branch pipe 9 comprises side plates 901 which are spaced left and right, a through hole 15 which transversely penetrates through the bottom of each side plate 901, and the clamping beads 11 are configured to only move left and right in the through holes 15; so that the clamping beads 11 and the sliding branch pipes 9 remain relatively fixed in the vertical direction.

The adjusting assembly comprises an adjusting push rod 12 which is arranged in the sliding branch pipe 9 in a sliding manner and can slide up and down, an upper push block 13 which is positioned at the upper end of the sliding branch pipe 9 and is in pushing fit with the upper end of the adjusting push rod 12, and a pulling assembly 14 which is used for driving the upper push block 13 to move horizontally. The adjusting push rod 12 is arranged along the length direction of the sliding branch pipe 9, and the bottom of the adjusting push rod 12 is provided with a matching seat 16 for limiting and matching with the clamping beads 11; the specific method is as follows: as shown in fig. 2, the mating seat 16 has a "convex" shape; the mating seat 16 includes a lower stopper 17 having a wider width at the bottom and a shrinkage block 18 having a relatively smaller width at a middle position of the upper end of the lower stopper 18. The adjusting push rod 12 has a locking position and an unlocking position, in the locking position, as shown in fig. 7 and 8, at this time, the clamping bead 11 protrudes outwards from the outer side of the sliding branch pipe 9 and is in clamping fit with the clamping groove 10, and the lower stop block 17 of the matching seat 16 at the bottom of the adjusting push rod 12 is aligned up and down with the through hole 15, so that the clamping bead 11 is clamped between the clamping groove 10 and the lower stop block 17; at this time, the lower stop block 17 can limit the movement of the clamping beads 11 towards the inside of the sliding branch pipe 9, so that the clamping beads 11 are always in clamping fit with the clamping grooves 10; so that the sliding branch pipe 9 is slidingly locked with the fixed branch pipe 8 at this time. A longitudinal elastic piece 19 is arranged between the bottom end of the sliding branch pipe 9 and the bottom end of the matching seat 16, and the elastic piece 19 is a longitudinal spring; the elastic element 19 serves to keep the adjustment push rod 12 in the locking position at all times. Then in the locking state, the clamping beads 11 are clamped with the clamping grooves 10 to limit the sliding branch pipe 9 to stretch and retract relative to the fixed branch pipe 8; thereby locking between the lower sleeve 4 and the upper sleeve 5. So the locking adjusting mechanism 7 can play a locking function and also can play a supporting role at the moment; so that the table plate 3 can stably stay at any adjusting height. Thus, the gas spring 6 is not required to have a locking function, so that the gas spring 6 can be selected from free gas springs, and the cost is very low.

The push-up block 13 is positioned at the upper end of the adjusting push rod 12; an inclined upper inclined plate 12a is arranged at the upper end of the adjusting push rod 12, a first inclined surface 1201 is arranged at the upper end of the upper inclined plate 12a, and a second inclined surface 1301 which is matched with the first inclined surface 1201 vertically is correspondingly arranged at the bottom end of the upper push block 13; the first inclined surface 1201 and the second inclined surface 1201 are configured such that a horizontal translation of the push-up block 13 in the direction of the pulling assembly 14 can act on a downward movement of the adjusting push rod 12 from the unlocking position with respect to the sliding branch pipe 9, in particular: the pulling assembly 14 comprises a horizontal and transverse pull rod assembly 20, a switch mounting seat 21 arranged at the bottom end of the desk plate 3 and an adjusting switch 22 rotatably arranged on the switch mounting seat 21. Wherein, the switch mounting seat 21 is arranged at the bottom end of the desk plate 3 and is close to the side edge of the desk plate 3; one end of the pull rod assembly 20 is connected in the switch mounting seat 21, and the other end of the pull rod assembly 20 extends into the upper end of the sliding branch pipe 9 and is connected with the push-up block 13; the adjusting switch 22 is a wrench, and the pull rod assembly 20 can be driven to pull the push-up block 13 to transversely move by rotating the wrench; when the user releases the adjusting switch 22, the adjusting switch 22 can automatically and elastically rotate and reset, so that the pull rod assembly 20 can drive the push-up block 13 to transversely move and reset to the initial position again; the pulling assembly 14 is a conventional pull rod adjusting device commonly used in the market, and can be directly purchased, so that the description thereof is omitted herein. As shown in fig. 8 and 9, when the user rotates the adjusting switch 22 to control the push-up block 13 to move transversely, the push-up block 13 acts on the adjusting push rod 12 to move downwards from the locking position, so that the matching seat 16 at the bottom end of the adjusting push rod 12 moves downwards; the lower stop block 17 is staggered from the clamping bead 11 up and down, and the shrinkage block 18 is aligned with the through hole 15 up and down; at this time, the adjusting push rod 12 is in the unlocking position, and the clamping beads 11 can move toward the inside of the sliding branch pipe 9 to withdraw from the clamping grooves 10.

Further, the method comprises the following steps: the clamping beads 11 are spherical bodies, and the clamping grooves 10 are arc-shaped grooves; and the depth of the clamping groove 10 is smaller than the radius of Yu Kazhu 11; then, as shown in fig. 8, when the adjusting push rod 12 is in the unlocking position, when the sliding branch pipe 9 is subjected to the action of external force to move up and down relative to the fixed branch pipe 8, the arc-shaped inner wall of the clamping groove 10 is in contact with the clamping bead 11, so that the clamping bead 11 can be easily pushed into the space between the shrinkage block 18 and the sliding branch pipe 9, the movement of the clamping bead 11 is very smooth, and no clamping phenomenon exists. And then the sliding branch pipe 9 and the built-in pipe 8 are unlocked in the movement; the shrinkage block 18 can be propped against the clamping bead 11 to further limit the clamping bead 11 from being separated from the through hole 15, so that the clamping bead 11 always moves left and right in the through hole 15 and cannot be separated from the through hole 15; the structure is stable. So that in this unlocked position the upper sleeve 5 can be extended and retracted relative to the lower sleeve 4 to enable the table 3 to be adjusted up and down.

And the downward movement of the adjustment push rod 12 will press against the elastic member 19, the elastic member 19 being compressed to provide an elastic force for returning the adjustment push rod 12 to the locking position again. Therefore, after unlocking and primarily adjusting the height of the desk plate 3 to a proper height, the adjustment switch 22 is only required to be loosened to enable the push-up block 13 to transversely move and reset; the elastic element 19 then acts on the adjustment push rod 12 so that the adjustment push rod 12 has a tendency to return upwards to the locking position; then further adjusting the table plate 3 to move up and down for a certain distance, and when the sliding branch pipe 9 moves to the position where the clamping beads 11 are overlapped with the clamping grooves 10 with the adjustable height; the adjusting push rod 12 can automatically reset and move upwards to enable the clamping beads 11 to be clamped with the clamping grooves 10 again, so that the table plate 3 is lifted and locked again. By the design, a user does not need to find the position to align by himself when locking; the clamping beads 11 can be automatically clamped into the clamping grooves 10. And a corner 16a with an inclined shape is arranged between the contraction block 18 and the lower stop block 17, as shown in fig. 9, and then when the adjusting push rod 12 is reset to the locking position upwards, the inclined corner 16a acts on the clamping bead 11 to roll into the clamping groove 10; the pushing effect is better, and the clamping phenomenon can not exist; so that the movement of the clamping beads 11 is smoother.

Furthermore, as shown in fig. 7-9, a limiting mechanism is further arranged between the adjusting push rod 12 and the sliding branch pipe 9, and the limiting mechanism comprises a longitudinal guide groove 23 arranged on the adjusting push rod 12 and a limiting pin 24 penetrating through the guide groove 23 and connected with the sliding branch pipe 9; so that the adjustment push rod 12 can only be moved between the locking position and the unlocking position, making the structure more stable.

In general, when the table 21 of the table is to be driven to lift, only the hand or even the lower part of the table 3 is required to rotate the adjusting switch 22 to drive the adjusting push rod 12 to move down to the unlocking position, so that the sliding branch pipe 9 can stretch and retract relative to the fixed branch pipe 8; when the height of the table plate 3 is adjusted to a proper position, the adjusting switch 22 is released; the adjusting push rod 12 has a tendency to automatically rise and reset to the locking position; so that the beads 11 can automatically roll into the corresponding height card slots 10. Then, the user only needs to act on the regulating switch 22 rotation below the desk plate 3, can realize the lift locking or unlocking of desk plate 3, and the regulating operation is very simple and convenient and easy.

Claims (10)

1. A locking adjustment mechanism for use in a table, comprising: the device comprises a fixed branch pipe, a sliding branch pipe, an adjusting push rod, an upper push block and a traction assembly, wherein the sliding branch pipe is arranged at the upper end of the fixed branch pipe in a sliding manner, the adjusting push rod is arranged in the sliding branch pipe in a sliding manner, the upper push block is in push-push fit with the upper end of the adjusting push rod, and the traction assembly is used for controlling the upper push block to transversely move; a lifting positioning mechanism is arranged between the sliding branch pipe and the fixed branch pipe, and comprises clamping grooves longitudinally arranged in the fixed branch pipe at intervals and clamping beads arranged on the sliding branch pipe; the clamping beads can protrude out of the sliding branch pipes and are clamped with the clamping grooves or contracted in the sliding branch pipes to withdraw from the clamping grooves; the adjusting push rod is provided with a matching seat in limit matching with the clamping beads, and the matching seat comprises a lower stop block positioned at the bottom and a shrinkage block positioned at the upper end of the lower stop block and relatively shrunk in width; in the locking state, the lower stop block is aligned with the clamping beads up and down and limits the clamping beads to be separated from the clamping grooves; an adjusting switch is arranged at the end part of the traction component, and the adjusting switch is controlled to control the push-up block to transversely move and reset; under the unblock state, the action regulating switch drives the sideslip of upper push rod in order to promote the regulating push rod and sink from the locking position and make shrink piece and card pearl up-and-down alignment, card pearl can roll in order to withdraw from the draw-in groove towards the slip branch pipe inside.

2. The lock adjustment mechanism for use in a table as in claim 1, wherein: the adjusting push rod is arranged along the length direction of the sliding branch pipe, and the matching seat is arranged at the bottom end of the adjusting push rod; the matching seat is of a convex structure, and the contraction block protrudes upwards from the middle position of the lower stop block.

3. The lock adjustment mechanism for use in a table as claimed in claim 2, wherein: the sliding branch pipe comprises side plates which are respectively positioned at the left side and the right side, a left-right penetrating through hole is arranged at the lower part of each side plate, the clamping beads are arranged in the through holes and are configured to move left and right only in the through holes; in the locking state, the lower stop block is aligned up and down with the through hole and props against the clamping bead; in the unlocking state, the regulating push rod moves downwards to enable the contraction block to be aligned with the passing opening up and down, and the clamping beads can roll towards the inside of the sliding branch pipe to withdraw from the clamping groove; and the shrinkage block can also be propped against the clamping beads to limit the clamping beads from being separated from the through openings.

4. The lock adjustment mechanism for use in a table as in claim 1, wherein: the upper end of the adjusting push rod is provided with an upper inclined block, and the end part of the upper inclined block is provided with an inclined first inclined plane; the bottom end of the upper pushing block is correspondingly provided with a second inclined plane which is matched with the first inclined plane up and down; the first inclined surface and the second inclined surface are configured to enable the horizontal movement of the push-up block towards the direction of the traction assembly to act on the adjusting push rod to move downwards from the locking position to the unlocking position.

5. The lock adjustment mechanism for use in a table as claimed in claim 2, wherein: a longitudinal elastic piece is arranged between the bottom end of the matching seat and the bottom end of the sliding branch pipe; the unlocking of the downward movement of the adjusting push rod will press down on the elastic member, which is elastically compressed to provide an elastic force for resetting the adjusting push rod up again to the locking position.

6. The lock adjustment mechanism for use in a table as in claim 1, wherein: the pulling assembly comprises a switch mounting seat and a horizontal and transverse pull rod assembly; the adjusting switch is rotatably arranged on the switch mounting seat; one end of the pull rod assembly is connected with the switch mounting seat, and the other end of the pull rod assembly extends into the upper end of the sliding branch pipe and is connected with the push-up block; the adjusting switch is a spanner, and the spanner can be rotated to drive the pull rod assembly to pull the upper pushing block to transversely move; and the adjusting switch can automatically and elastically rotate to return, so that the pull rod assembly can correspondingly drive the push-up block to translate and reset again.

7. The lock adjustment mechanism for use in a table as in claim 1, wherein: the clamping beads are spherical bodies, and the clamping grooves are arc-shaped grooves.

8. The lock adjustment mechanism for use in a table as in claim 1, wherein: a corner which is inclined is arranged between the contraction block and the lower stop block; when the adjusting push rod is reset to the locking position from the unlocking position, the corner pushes the clamping beads to roll into the clamping grooves.

9. The lock adjustment mechanism for use in a table as in claim 1, wherein: and a limiting mechanism is further arranged between the adjusting push rod and the sliding branch pipe and comprises a longitudinal guide groove arranged on the adjusting push rod and a limiting pin penetrating through the guide groove and connected with the sliding branch pipe.

10. A table, characterized in that: comprising a table plate, a foot, a telescopic tube which is arranged between the table plate and the foot and can be lifted, and a locking and adjusting mechanism used in a table tool as set forth in any one of claims 1-9; the fixed branch pipe and the sliding branch pipe are arranged in the telescopic pipe; the traction assembly is arranged at the bottom end of the desk plate assembly, and the regulating switch is close to the side edge of the desk plate.

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