CN-224206420-U - Adjusting mechanism for telescopic rod and desk and chair

CN224206420UCN 224206420 UCN224206420 UCN 224206420UCN-224206420-U

Abstract

The utility model relates to the technical field of human life necessity, and provides an adjusting mechanism for a telescopic rod and a desk and chair, wherein the adjusting mechanism for the telescopic rod comprises a bushing and a locking piece, the bushing is provided with a central through hole penetrating through two ends, one end of the bushing is provided with an inserting part, and the other end of the bushing is provided with a locking part; the locking piece comprises a lock sleeve arranged at the opening and a lock handle for driving the opening of the lock sleeve to be closed, locked or separated and unlocked, wherein the inner side surface of the lock sleeve is provided with a first buckling part, and the locking part is provided with a second buckling part which is locked with the first buckling part. The position of the inner tube of the table leg or the chair leg can be locked through rotating the lock handle, the table leg or the chair leg which can be adjusted in a telescopic way is ensured to be stable and not easy to slide, otherwise, when the height needs to be adjusted, the lock handle is only required to be rotated reversely, the opening of the lock sleeve is separated and unlocked, the inner tube can slide freely, the height adjustment is realized, the operation is simple and convenient, the structure is stable, and the user experience can be effectively improved.

Inventors

CHEN XIHUA
YANG HUAFENG
CHEN XIANG
YANG RUOSONG

Assignees

厦门富桂通科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250716

Claims (10)

1. An adjustment mechanism for a telescoping rod, comprising: A bushing provided with a central through hole penetrating through both ends, one end of the bushing provided with a plug-in part, the other end of the bushing provided with a locking part, and The locking piece comprises a lock sleeve with an opening and a lock handle for driving the opening of the lock sleeve to be closed, locked or separated and unlocked, and a first buckling part is arranged on the inner side surface of the lock sleeve; The locking part is provided with a second buckling part which is locked with the first buckling part.
2. The adjusting mechanism for the telescopic rod according to claim 1, wherein the lock sleeve is symmetrically provided with protruding blocks at the opening; The locking end of the lock handle is provided with an eccentric wheel propped against one lug and a lock rod, one end of which penetrates through the two lugs and is connected to the rotating shaft of the eccentric wheel, and the other end of the lock rod is provided with a limiting part propped against the other lug.
3. The adjusting mechanism for a telescopic link according to claim 1, wherein the end of the lock handle is provided with a finger groove.
4. The adjusting mechanism for a telescopic link according to claim 1, wherein a plurality of pairs of the first engaging portion and the second engaging portion are provided at intervals.
5. The adjusting mechanism for a telescopic rod according to claim 1, wherein a plurality of guide protrusions are provided on an inner side surface of the bushing at intervals.
6. The adjusting mechanism for a telescopic link according to claim 1, wherein the plug-in portion is provided with at least one first open ring groove.
7. The adjusting mechanism for a telescopic link according to claim 1 or 6, wherein the locking portion is provided with at least one second open groove.
8. The adjusting mechanism for a telescopic link according to claim 1, wherein the handle portion of said lock handle has a major arc structure.
9. The adjusting mechanism for the telescopic rod of claim 1, further comprising an outer tube and an inner tube sleeved in and sliding along the outer tube, wherein the outer tube is provided with a plurality of positioning holes, and a spring pin which is inserted into, locked with or separated from the positioning holes is arranged in the inner tube.
10. A desk and chair comprising an adjustment mechanism for a telescopic rod according to any one of claims 1 to 9.

Description

Adjusting mechanism for telescopic rod and desk and chair Technical Field The utility model relates to the technical field of human life necessity, in particular to an adjusting mechanism for a telescopic rod and a desk and a chair. Background Along with the development of society, education is continuously advancing, schools are continuously improving run a school environments, and more perfect services are provided for students. The lifting desk and chair can greatly improve the learning environment so as to meet the height difference of different students, and solve the problem that the heights of the desk and chair are not matched with the heights of the students because the heights of the traditional desk and chair are uniform. Meanwhile, the mismatch of the height of the desk and the chair and the height of the student is one of the main reasons for the high incidence of myopia of the student, and in addition, the abnormal curvature of the spine is easy to cause, thereby affecting the learning efficiency and the growth and development of the student. However, in the aspect of height adjustment, the existing class seat is usually locked by adopting a spring pin, but the spring pin is easily influenced by external force, so that the stability is poor, and the additional use of the bolt for locking needs the assistance of a tool and easily damages the table leg or the chair leg, so that the operation is complicated, and the adjustment is inconvenient. Disclosure of utility model The utility model aims to provide an adjusting mechanism for a telescopic rod and a desk and a chair, which solve the problem that the height adjustment of the existing desk and chair is inconvenient. In order to achieve the above purpose, the present utility model adopts the following technical scheme: An adjustment mechanism for a telescoping rod, comprising: A bushing provided with a central through hole penetrating through both ends, one end of the bushing provided with a plug-in part, the other end of the bushing provided with a locking part, and The locking piece comprises a lock sleeve with an opening and a lock handle for driving the opening of the lock sleeve to be closed, locked or separated and unlocked, and a first buckling part is arranged on the inner side surface of the lock sleeve; The locking part is provided with a second buckling part which is locked with the first buckling part. Preferably, the lock sleeve is symmetrically provided with convex blocks at the opening; The locking end of the lock handle is provided with an eccentric wheel propped against one lug and a lock rod, one end of which penetrates through the two lugs and is connected to the rotating shaft of the eccentric wheel, and the other end of the lock rod is provided with a limiting part propped against the other lug. Preferably, the end of the lock handle is provided with a finger groove. Preferably, the first fastening portion and the second fastening portion are provided with a plurality of pairs at intervals. Preferably, a plurality of guide lugs are arranged on the inner side surface of the bushing at intervals. Preferably, the plug-in part is provided with at least one first ring opening groove. Preferably, the locking part is provided with at least one second ring opening groove. Preferably, the handle part of the lock handle is in a major arc structure. Preferably, the device further comprises an outer tube and an inner tube which is sleeved in the outer tube and slides along the outer tube, a plurality of positioning holes are formed in the outer tube, and spring pins which are locked or unlocked in a plugging mode through the positioning holes are arranged in the inner tube. Also provides a desk and chair comprising the adjusting mechanism for the telescopic rod. After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages: 1. the position of the inner tube of the table leg or the chair leg can be locked by rotating the lock handle, so that the table leg or the chair leg which can be telescopically adjusted is stable and is not easy to slide, otherwise, when the height needs to be adjusted, the lock handle is only required to be reversely rotated, the opening of the lock sleeve is separated and unlocked, the inner tube can freely slide, the height adjustment is realized, the operation is simple and convenient, the structure is stable, and the user experience can be effectively improved. 2. According to the utility model, the guide lug of the bushing can be clamped with the clamping hole of the outer tube, and the first buckling part of the lock sleeve can be clamped with the second buckling part of the locking part of the bushing, so that self-locking connection is realized, and additional connecting pieces (such as bolts and the like) are not needed. 3. The lock handle is coated with the lock ring to realize locking, is not easy to loosen and is not easy to hook a foreign