CN219125691U

CN219125691U - Telescopic adjusting mechanism, table and seat

Info

Publication number: CN219125691U
Application number: CN202320173916.1U
Authority: CN
Inventors: 陈希华; 杨华锋; 刘锦玉; 柯玉凤; 陈希宝
Original assignee: Xiamen Fuguitong Technology Co Ltd
Current assignee: Xiamen Fuguitong Technology Co Ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-06-06
Anticipated expiration: 2033-02-06

Abstract

The utility model relates to the field of human life necessity, and provides a telescopic adjusting mechanism, a table and a seat, wherein the telescopic adjusting mechanism comprises a limiting rod, a sliding rod and a positioning pin, a gear hole is obliquely arranged on the limiting rod, and the gear hole comprises a movable gear and a locking gear; the sliding rod is sleeved on the limiting rod, and a lifting adjusting hole is vertically formed in the sliding rod and comprises a sliding area and a limiting area; the locating pin is arranged on the gear hole, and an elastic piece for pushing the locating pin towards the locking gear is arranged on the locating pin. A main part of the sliding support is formed by adopting a structure that a limiting rod is sleeved with a sliding rod; furthermore, a gear hole, a positioning pin and a torsion spring are arranged on the limiting rod to form a locking member, and a bar-shaped hole and a clamping groove are arranged on the sliding rod to form an adjusted gear. The multi-gear adjustment is carried out through the clamping grooves, the length distance of the sliding rod extending out relative to the limiting rod is achieved, and the telescopic adjustment effect is achieved.

Description

Telescopic adjusting mechanism, table and seat

Technical Field

The utility model relates to the field of human life necessity, in particular to a telescopic adjusting mechanism, a table and a seat.

Background

The existing desk and chair types are numerous, and the height adjustment of the desk or the chair is a very practical function. Today, there are desks and seats of fixed height, which are inconvenient for students in development stage to use and easily cause knocks and damages to the body; the school desk and the chair with the adjusting function can be adjusted by special tools, and the adjusting tools can be intensively managed by the school for the purposes of avoiding losing and improving safety, so that the school desk and the chair are inconvenient to use.

Patent document with application number CN202111167198.9, entitled "leisure desk and chair", describes: the table supporting legs are lifting table supporting legs, the lifting table supporting legs are connected with the footings through lifting mechanisms, the chair supporting legs are lifting chair supporting legs, the lifting chair supporting legs are connected with the footings through lifting mechanisms, the lifting table supporting legs and the lifting chair supporting legs are respectively composed of an upper rod and a lower rod, the lifting mechanisms comprise a gear box, the gear box is fixed with the upper rod or the lower rod, transverse umbrella teeth and vertical umbrella teeth are arranged in the gear box, the transverse umbrella teeth are meshed with the vertical umbrella teeth, a screw rod is connected with the transverse umbrella teeth, a nut is arranged on the screw rod, the nut is fixed with the lower rod or the upper rod, a rocker is arranged in the vertical umbrella teeth, and one end of the rocker is connected with the rocking handle.

Therefore, the lifting adjustment of the leisure table and the chair is carried out through the cooperation of the gear, the rack and other structures, and the adjustment can be realized only by adding one rocker device. The object similar to the rocker is in the school, and the object is controlled, so that the problem that the object is inconvenient to adjust when the object needs to be lifted is caused.

Disclosure of Invention

The utility model aims to provide a telescopic adjusting mechanism, a table and a seat, and aims to solve the problem that the lifting adjustment of the existing table or seat is inconvenient.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a telescoping adjustment mechanism comprising:

the limiting rod is obliquely provided with a gear hole, and the gear hole comprises a movable gear and a locking gear positioned above the horizontal plane of the movable gear;

the sliding rod is sleeved on the limiting rod, a lifting adjusting hole is vertically formed in the sliding rod, the lifting adjusting hole comprises a sliding area for lifting and sliding and a limiting area which is positioned at one side of the sliding area and provided with a plurality of clamping grooves, the limiting area is used for conducting superposition limiting with the locking gear, and the movable gear is conducted with the sliding area in a superposition mode; a kind of electronic device with high-pressure air-conditioning system

The positioning pin is arranged on the gear hole, and an elastic piece for pushing the positioning pin towards the locking gear is arranged on the positioning pin.

Preferably, the inside of the limiting rod is of a hollow structure, or one end of the limiting rod is provided with a containing cavity extending to the position of the gear hole.

Preferably, the elastic component is a torsion spring, one supporting leg of the torsion spring is arranged on the locating pin, the other supporting leg of the torsion spring is arranged on the accommodating cavity or the inner side wall of the limiting rod, and the torsion spring is used for giving the elastic force of the locating pin towards the locking gear direction.

Preferably, the lifting adjusting hole is a bar-shaped hole, and a plurality of clamping grooves are positioned on the same side of the bar-shaped hole.

Preferably, the movable gear is provided with a vertical groove extending axially towards the limiting rod, and the width of the vertical groove is smaller than that of the strip-shaped hole.

Preferably, the sliding rod further comprises a sleeve sleeved outside the sliding rod, and one exposed end of the limiting rod is arranged at one end of the sleeve.

Preferably, a friction sleeve is arranged on the other port of the sleeve.

Preferably, a protrusion propped against the sliding rod is arranged on the inner side surface of the friction sleeve.

Also provided is a table with a telescopic adjustment mechanism, comprising a telescopic adjustment mechanism as described above.

Also provided is a seat with a telescoping adjustment mechanism, including a telescoping adjustment mechanism as described above.

After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:

1. a main part of the sliding support is formed by adopting a structure that a limiting rod is sleeved with a sliding rod; furthermore, a gear hole, a positioning pin and a torsion spring are arranged on the limiting rod to form a locking member, and a bar-shaped hole and a clamping groove are arranged on the sliding rod to form an adjusted gear. The multi-gear adjustment is carried out through the clamping grooves, the length distance of the sliding rod extending out relative to the limiting rod is achieved, and the telescopic adjustment effect is achieved.

Drawings

FIG. 1 is a schematic view of a telescopic adjustment mechanism according to the present utility model;

FIG. 2 is an exploded view of the telescopic adjustment mechanism of the present utility model;

FIG. 3 is a schematic view of the telescopic adjustment mechanism of the present utility model in a sleeve state;

FIG. 4 is a cross-sectional view of the telescopic adjustment mechanism of the present utility model with a sleeve;

fig. 5 is a schematic view of a friction sleeve of the telescopic adjustment mechanism according to the present utility model.

Reference numerals illustrate:

10. a limit rod; 101. a gear hole; 102. a hollow structure;

1011. a movable gear; 1012. locking a gear; 1013. a vertical slot;

20. a slide bar; 201. lifting the adjusting hole;

2011. a slip zone; 2012. a limit area;

30. a positioning pin; 301. an elastic member;

40. a sleeve; 401. a friction sleeve;

4011. a protrusion.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, it should be noted that:

the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not denote or imply that the apparatus or elements of the present utility model must have a particular orientation, and thus should not be construed as limiting the utility model.

When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the utility model will be understood by those skilled in the art according to the specific circumstances.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a telescopic adjustment mechanism, which includes a stop lever 10, a sliding lever 20 and a positioning pin 30, wherein a gear hole 101 is obliquely arranged on the stop lever 10, and the gear hole 101 includes a movable gear 1011 and a locking gear 1012 above the horizontal plane of the movable gear 1011; the sliding rod 20 is sleeved on the limiting rod 10, a lifting adjusting hole 201 is vertically formed in the sliding rod 20, the lifting adjusting hole 201 comprises a sliding region 2011 for lifting and sliding and a limiting region 2012, a plurality of clamping grooves are arranged on one side of the sliding region 2011, the limiting region 2012 is used for conducting superposition limiting with the locking gear 1012, and the movable gear 1011 is conducted in superposition with the sliding region 2011; the positioning pin 30 is provided on the gear hole 101, and an elastic member 301 for pushing the positioning pin 30 toward the lock gear 1012 is provided on the positioning pin 30.

The gear hole 101 of the present embodiment has two gears, and is disposed obliquely so that the detent pin 30 can be switched between the movable gear 1011 and the locking gear 1012. Specifically, in the initial state, the positioning pin 30 is located at the position of the locking gear 1012, and is locked and limited by the elastic force of the elastic member 301. At this time, the positioning pin 30 is also engaged in the limiting region 2012 of the slide bar 20 (i.e. engaged in one of the engaging grooves), so as to form a locked state between the slide bar 20 and the limiting bar 10.

For convenience of description, the limit lever 10 and the slide lever 20 are vertically disposed, and the cooperating movement between the limit lever 10 and the slide lever 20 is described by the ascending and descending directions, the limit lever 10 may be fixedly installed on the ground or other fixed surface, and the slide lever 20 is a movably adjusted portion.

Specifically, when the telescopic adjustment mechanism needs to be elongated, the slide rod 20 is lifted upward (the limit rod 10 is in a fixed state), so that the positioning pin 30 moves along the inclined plane towards the movable gear 1011, and meanwhile, the positioning pin 30 is separated from the limit region 2012 (i.e. one of the clamping grooves) of the slide rod 20, thereby realizing unlocking between the limit rod 10 and the slide rod 20. When the positioning pin 30 is in the movable gear 1011, the positioning pin 30 can slide in a pulling manner until moving to the next clamping groove position of the limiting area 2012, and the positioning pin 30 is pushed or pulled into the clamping groove to be positioned by the elastic force at the clamping groove position due to the force of the elastic member 301 in the direction towards the locking gear 1012, so that the effect of stepwise lifting adjustment along the limiting area 2012 of the lifting adjustment hole 201 is formed.

When the positioning pin 30 is clamped into the clamping groove at the lowest point, the positioning pin 30 is further lifted upwards to be switched to the locking gear 1012. At this time, the sliding rod 20 can be pushed and pulled in the direction, that is, the sliding rod 20 is sleeved back into the limiting rod 10 until the sliding rod abuts against the top surface of the lifting adjusting hole 201, so that the positioning pin 30 is pushed into the locking gear 1012 and the uppermost clamping groove by the elastic piece 301 again, and the purpose of adjustment is achieved in a circulating manner.

As shown in fig. 4, in this embodiment, the inside of the stop lever 10 is a hollow structure 102, or one end of the stop lever 10 is provided with a receiving cavity extending to the position of the gear hole 101. Taking the hollow structure 102 as an example for illustration, the weight of the stop lever 10 can be reduced by the hollow structure 102, and the positioning pin 30 and the elastic member 301 can be conveniently installed, so that the practicality of use or assembly is improved.

Further, as shown in fig. 2, in this embodiment, the elastic member 301 is a torsion spring, one leg of the torsion spring is disposed on the positioning pin 30, and the other leg of the torsion spring is disposed on the accommodating cavity or the inner side wall of the limiting rod 10, so that the torsion spring can give the positioning pin 30 an elastic force towards the locking gear 1012, and can cooperate with the positioning pin 30 to switch between the movable gear 1011 and the locking gear 1012.

In this embodiment, the lifting adjusting hole 201 is a bar-shaped hole, and the plurality of clamping grooves are equally spaced on the same side of the bar-shaped hole. The travel distance along the axial movement of the sliding rod 20 is formed in this way, and the distance can be set according to actual requirements; meanwhile, the number of the clamping grooves also changes the adjusting precision, and the limitation of the adjusting size is realized.

Further, as shown in fig. 2, the movable gear 1011 in this embodiment is provided with a vertical groove 1013 extending axially toward the stopper rod 10, and the width of the vertical groove 1013 is smaller than the width of the bar-shaped hole. The vertical slot 1013 is provided to fix the positioning pin 30 in a locked position so as to perform lifting and sliding in the sliding area 2011 of the lifting and adjusting hole 201. Meanwhile, because the width of the vertical slot 1013 is smaller than the width of the bar-shaped hole, there is a part of inclined surface between the movable gear 1011 and the locking gear 1012 in the bar-shaped hole, so that the positioning pin 30 may not fall into the movable gear 1011 completely, and when the positioning pin 30 adjusts the clamping slot, the elastic member 301 may be easily clamped in, thereby improving practicality.

As shown in fig. 3 and 4, the present embodiment further includes a sleeve 40 sleeved outside the sliding rod 20, and an exposed end of the stop lever 10 is disposed on one end of the sleeve 40. Through the setting of sleeve pipe 40, can protect gag lever post 10 and slide bar 20's cooperation position, simultaneously, can also fix gag lever post 10 in sleeve pipe 40, realize the fixed effect of endotheca, improved whole telescopic adjustment mechanism's structural strength.

Further, as shown in fig. 3 and 4, in this embodiment, a friction sleeve 401 is disposed on the other end of the sleeve 40, and the friction sleeve 401 is made of plastic, so that a good friction coefficient can be provided, and friction loss and noise between the sleeve 40 and the sliding rod 20 are reduced, and smoothness and practicability of sliding are improved.

Further, as shown in fig. 5, in this embodiment, a plurality of protrusions 4011 abutting against the sliding rod 20 are provided on the inner side surface of the friction sleeve 401, and the protrusions 4011 are used to reduce the contact area between the friction sleeve 401 and the sliding rod 20, reduce the friction force, and improve the smoothness of adjustment.

Example two

The present embodiment provides a table (not shown) having a telescopic adjustment mechanism, including the telescopic adjustment mechanism as described in the first embodiment. The desk can be installed at the position of the desk legs through the use of the telescopic adjusting mechanism, the height of the desk is adjusted by lifting the desk top, the purpose of adapting to different crowds is achieved, and the effect of convenience in use is achieved.

The desk can be used as a desk for students, is simple and convenient to use, is convenient for the students to operate, and has higher safety and practicability.

Example III

The present embodiment provides a seat (not shown) with a telescopic adjustment mechanism, including the telescopic adjustment mechanism as described in the first embodiment, where the seat is applicable through a case of the telescopic adjustment mechanism, and the adjustment of the height of the seat can be completed by lifting the seat surface, so as to adapt to people with different heights.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A telescopic adjustment mechanism, comprising:

2. The telescopic adjustment mechanism of claim 1, wherein: the inside of the limiting rod is of a hollow structure, or one end of the limiting rod is provided with a containing cavity extending to the position of the gear hole.

3. The telescopic adjustment mechanism of claim 2, wherein: the elastic piece is a torsion spring, one supporting leg of the torsion spring is arranged on the locating pin, the other supporting leg of the torsion spring is arranged on the accommodating cavity or the inner side wall of the limiting rod, and the torsion spring is used for giving the elastic force of the locating pin towards the locking gear direction.

4. The telescopic adjustment mechanism of claim 1, wherein: the lifting adjusting hole is a strip-shaped hole and a plurality of clamping grooves positioned on the same side of the strip-shaped hole.

5. The telescopic adjustment mechanism of claim 4, wherein: the movable gear is provided with a vertical groove extending towards the axial direction of the limiting rod, and the width of the vertical groove is smaller than that of the strip-shaped hole.

6. The telescopic adjustment mechanism of claim 1, wherein: the sliding rod is characterized by further comprising a sleeve sleeved outside the sliding rod, and one exposed end of the limiting rod is arranged at one end of the sleeve.

7. The telescopic adjustment mechanism of claim 6, wherein: and the other port of the sleeve is provided with a friction sleeve.

8. The telescopic adjustment mechanism of claim 7, wherein: the inner side surface of the friction sleeve is provided with a bulge propped against the sliding rod.

9. A table with a telescopic adjustment mechanism, comprising a telescopic adjustment mechanism according to any one of claims 1-8.

10. A seat having a telescopic adjustment mechanism, comprising a telescopic adjustment mechanism according to any one of claims 1-8.