CN213429236U

CN213429236U - Chair leg telescoping device

Info

Publication number: CN213429236U
Application number: CN202022376490.9U
Authority: CN
Inventors: 陈宏斌
Original assignee: Suzhou Spring Massage Chair Co ltd
Current assignee: Suzhou Spring Massage Chair Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-06-15
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a chair shank telescoping device, include: a chair leg; the chair leg includes: an upper iron frame and a lower iron frame; the upper iron frame is fixed at the front end of the chair; the upper iron frame is in an inverted U shape; the lower iron frame is arranged in the inverted U-shaped opening of the upper iron frame in a sliding manner; the lower iron frame is U-shaped; a tension spring is arranged between the rear end face of the upper iron frame and the rear end face of the lower iron frame; a first limiting buckle is fixedly arranged at the upper end of the left side and the upper end of the right side of the lower iron frame; the two first limit buckles are symmetrical; the first limit buckles are arranged on the upper iron frame in a mutually sliding manner; a second limiting buckle is fixedly arranged at the middle part of the left side and the right side of the upper iron frame below the first limiting buckle; the two second limit buckles are symmetrical; the second limit buckle is arranged on the lower iron frame in a sliding mode. In this way, the utility model discloses a extension spring lets the head rod slide from top to bottom at the through-hole, realizes stretching out and the withdrawal of shank, the crowd of the more different heights of adaptation.

Description

Chair leg telescoping device

Technical Field

The utility model relates to an improvement of chair shank, in particular to realize stretching out and retracting back of shank, the crowd's of the more different heights of adaptation chair shank telescoping device through the extension spring.

Background

With more and more attention paid to health, health care equipment such as massage sticks, massage chairs, massage machines, therapeutic instruments and the like increasingly enter common families, and the principle of the health care equipment is that mechanical rolling force action and mechanical force extrusion are utilized to massage. At present, the existing body-building massagers in domestic markets, in particular massage chairs, are designed with different components such as armrests, legs and the like of the chairs in order to meet the requirement of massage, so as to realize the massage of different parts of human bodies. However, the size of the legs is fixed due to the height limitation of the chair, which makes the legs of the people with relatively high height in a curled state and uncomfortable when using the massage chair.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides one kind through extension spring realization shank stretch out and retract, the crowd's of the more different heights of adaptation chair shank telescoping device.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a chair leg extension and retraction apparatus, comprising: a chair leg; the chair leg includes: an upper iron frame and a lower iron frame; the upper iron frame is fixed at the front end of the chair; the upper iron frame is in an inverted U shape; the lower iron frame is arranged in the inverted U-shaped opening of the upper iron frame in a sliding manner; the lower iron frame is U-shaped; a tension spring is arranged between the rear end face of the upper iron frame and the rear end face of the lower iron frame; a first limiting buckle is fixedly arranged at the upper end of the left side and the upper end of the right side of the lower iron frame; the two first limit buckles are symmetrical; the first limit buckles are arranged on the upper iron frame in a mutually sliding manner; a second limiting buckle is fixedly arranged at the middle part of the left side and the right side of the upper iron frame below the first limiting buckle; the two second limit buckles are symmetrical; the second limit buckle is arranged on the lower iron frame in a sliding mode.

Preferably, the first limit buckle includes: two special-shaped fixture blocks; the two special-shaped fixture blocks are combined to form two longitudinal through holes; the two longitudinal through holes have front and back fall and are not on the same straight line; the left side and the right side of the upper iron frame are both arranged in the through holes at the outer sides of the corresponding first limit buckles in a sliding manner; the left side and the right side of the lower iron frame are fixedly arranged in the through holes at the inner sides of the first limit buckles corresponding to the lower iron frame; the second limit buckle has the same structure as the first limit buckle; the left side and the right side of the upper iron frame are both fixedly arranged in through holes at the outer sides of the second limit buckles corresponding to the upper iron frame; the left side and the right side of the lower iron frame are both arranged in the through hole on the inner side of the second limit buckle corresponding to the lower iron frame in a sliding mode.

Preferably, the upper iron frame includes: a left upper strut and a right upper strut; an upper cross rod is arranged between the upper ends of the left upper supporting rod and the right upper supporting rod; the lower end of the upper cross rod is provided with a fixed bracket; the lower iron stand comprises: a left lower strut and a right lower strut; a lower cross rod is arranged between the lower ends of the left lower support rod and the right lower support rod; and a fixed cross rod is arranged between the left lower supporting rod and the right lower supporting rod and above the lower cross rod.

Preferably, tension springs are arranged on the left side and the right side between the rear end face of the upper iron frame and the rear end face of the lower iron frame; the upper end of the tension spring is fixedly arranged on the upper cross rod, and the lower end of the tension spring is fixedly arranged on the fixed cross rod.

Preferably, the front end of the upper iron frame is provided with an upper half part leg part; the front end of the lower iron frame is provided with a lower half leg part; the upper half part of the leg is fixed on the left upper supporting rod, the right upper supporting rod, the upper transverse rod and the fixed bracket through screws; the lower half leg part is fixed on the left lower supporting rod, the right lower supporting rod, the lower cross rod and the fixed cross rod through screws.

The utility model has the advantages that: the utility model discloses a chair shank telescoping device, through the extension spring realize the stretching out and retracting of shank, and through the cooperation of first spacing knot and second spacing knot, realize the inseparable interlinkage of the shank of the first half and the shank of the latter half, the user can step on downwards hard through the foot again, outwards extend the shank of the latter half, the crowd that the adaptation height is higher; when the leg is loosened, the leg part of the lower half part can be retracted due to the tension spring, so that the use of the tall and short people is not influenced.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a schematic structural view of a leg stretching device of a chair of the present invention.

Fig. 2 is a right side view of the leg stretching device of the chair of the present invention.

Fig. 3 is a schematic structural view of the upper iron frame and the lower iron frame of the present invention.

Figure 4 is the structure schematic diagram of first spacing knot and second spacing knot of the utility model.

Wherein: 1. mounting an iron frame; 2. a lower iron frame; 3. a tension spring; 4. a first limit buckle; 5. a second limit buckle; 6. a special-shaped fixture block; 7. a through hole; 8. a left upper strut; 9. a strut is arranged on the right side; 10. an upper cross bar; 11. fixing a bracket; 12. a left lower strut; 13. a right lower strut; 14. a lower cross bar; 15. fixing the cross bar; 16. an upper half leg portion; 17. the lower half leg.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 4, the present invention includes:

in order to solve the technical problem, the utility model discloses a technical scheme be a chair shank telescoping device, include: a chair leg; the chair leg includes: an upper iron frame 1 and a lower iron frame 2; the upper iron frame 1 is fixed at the front end of the chair; the upper iron frame 1 is in an inverted U shape; the lower iron frame 2 is arranged in the inverted U-shaped opening of the upper iron frame 1 in a sliding manner; the lower iron frame 2 is U-shaped; a tension spring 3 is arranged between the rear end face of the upper iron frame 1 and the rear end face of the lower iron frame 2; a first limit buckle 4 is fixedly arranged at the upper end of the left side and the upper end of the right side of the lower iron frame 2; the two first limit buttons 4 are symmetrical; the first limit buckles 4 are arranged on the upper iron frame 1 in a mutually sliding manner; the middle parts of the left side and the right side of the upper iron frame 1 are respectively and fixedly provided with a second limit buckle 5 below the first limit buckle 4; the two second limit buttons 5 are symmetrical; and the second limit buckle 5 is arranged on the lower iron frame 2 in a sliding manner.

The first stopper 4 includes: two special-shaped fixture blocks 6; the two special-shaped fixture blocks 6 are combined to form two longitudinal through holes 7; the two longitudinal through holes 7 have front and back fall and are not on the same straight line; the left side and the right side of the upper iron frame 1 are arranged in the through holes 7 on the outer side of the corresponding first limit buckles 4 in a sliding manner; the left side and the right side of the lower iron frame 2 are fixedly arranged in the through holes 7 at the inner sides of the first limit buckles 4 corresponding to the lower iron frame; the second limit buckle 5 has the same structure as the first limit buckle 4; the left side and the right side of the upper iron frame 1 are fixedly arranged in the through holes 7 at the outer sides of the second limit buckles 5 corresponding to the upper iron frame; the left side and the right side of the lower iron frame 2 are both arranged in the through hole 7 on the inner side of the second limit buckle 5 corresponding to the lower iron frame in a sliding manner.

The upper iron frame 1 includes: a left upper strut 8 and a right upper strut 9; an upper cross rod 10 is arranged between the upper ends of the left upper supporting rod 8 and the right upper supporting rod 9; the lower end of the upper cross rod 10 is provided with a fixed bracket 11; the lower iron frame 2 includes: a left lower strut 12 and a right lower strut 13; a lower cross bar 14 is arranged between the lower ends of the left lower supporting rod 12 and the right lower supporting rod 13; a fixed cross bar 15 is arranged between the left lower supporting bar 12 and the right lower supporting bar 13 and above the lower cross bar 14.

Tension springs 3 are arranged on the left side and the right side between the rear end face of the upper iron frame 1 and the rear end face of the lower iron frame 2; the upper end of the tension spring 3 is fixedly arranged on the upper cross rod 10, and the lower end of the tension spring is fixedly arranged on the fixed cross rod 15.

The front end of the upper iron frame 1 is provided with an upper half part leg part 16; the front end of the lower iron frame 2 is provided with a lower half leg part 17; the upper half part leg part 16 is fixed on the left upper supporting rod 8, the right upper supporting rod 9, the upper transverse rod 10 and the fixed bracket 11 through screws; the lower half leg 17 is fixed on the left lower support rod 12, the right lower support rod 13, the lower cross rod 14 and the fixed cross rod 15 through screws.

When the device is used, a user steps downwards with force through feet, the lower iron frame 2 moves downwards to drive the first limiting buckle 4 to move downwards, and the longest downward distance is that the first limiting buckle 4 is in contact with the second limiting buckle 5; the legs 17 of the lower half part extend outwards to adapt to the crowd with higher height; when the iron frame is loosened, the tension spring 3 drives the lower iron frame 2 to move upwards, and the leg part 17 at the lower half part is retracted, so that the use of people with low height is not influenced.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A chair leg telescoping device which characterized in that: the method comprises the following steps: a chair leg; the chair leg includes: an upper iron frame and a lower iron frame; the upper iron frame is fixed at the front end of the chair; the upper iron frame is in an inverted U shape; the lower iron frame is arranged in the inverted U-shaped opening of the upper iron frame in a sliding manner; the lower iron frame is U-shaped; a tension spring is arranged between the rear end face of the upper iron frame and the rear end face of the lower iron frame; a first limiting buckle is fixedly arranged at the upper end of the left side and the upper end of the right side of the lower iron frame; the two first limit buckles are symmetrical; the first limit buckles are arranged on the upper iron frame in a mutually sliding manner; a second limiting buckle is fixedly arranged at the middle part of the left side and the right side of the upper iron frame below the first limiting buckle; the two second limit buckles are symmetrical; the second limit buckle is arranged on the lower iron frame in a sliding mode.

2. The chair leg extension and retraction apparatus as claimed in claim 1, wherein: first spacing knot includes: two special-shaped fixture blocks; the two special-shaped fixture blocks are combined to form two longitudinal through holes; the two longitudinal through holes have front and back fall and are not on the same straight line; the left side and the right side of the upper iron frame are both arranged in the through holes at the outer sides of the corresponding first limit buckles in a sliding manner; the left side and the right side of the lower iron frame are fixedly arranged in the through holes at the inner sides of the first limit buckles corresponding to the lower iron frame; the second limit buckle has the same structure as the first limit buckle; the left side and the right side of the upper iron frame are both fixedly arranged in through holes at the outer sides of the second limit buckles corresponding to the upper iron frame; the left side and the right side of the lower iron frame are both arranged in the through hole on the inner side of the second limit buckle corresponding to the lower iron frame in a sliding mode.

3. The chair leg extension and retraction apparatus as claimed in claim 1, wherein: the upper iron frame comprises: a left upper strut and a right upper strut; an upper cross rod is arranged between the upper ends of the left upper supporting rod and the right upper supporting rod; the lower end of the upper cross rod is provided with a fixed bracket; the lower iron stand comprises: a left lower strut and a right lower strut; a lower cross rod is arranged between the lower ends of the left lower support rod and the right lower support rod; and a fixed cross rod is arranged between the left lower supporting rod and the right lower supporting rod and above the lower cross rod.

4. The chair leg extension and retraction apparatus as claimed in claim 3, wherein: tension springs are arranged on the left side and the right side between the rear end face of the upper iron frame and the rear end face of the lower iron frame; the upper end of the tension spring is fixedly arranged on the upper cross rod, and the lower end of the tension spring is fixedly arranged on the fixed cross rod.

5. The chair leg extension and retraction apparatus as claimed in claim 3, wherein: the front end of the upper iron frame is provided with an upper half part leg part; the front end of the lower iron frame is provided with a lower half leg part; the upper half part of the leg is fixed on the left upper supporting rod, the right upper supporting rod, the upper transverse rod and the fixed bracket through screws; the lower half leg part is fixed on the left lower supporting rod, the right lower supporting rod, the lower cross rod and the fixed cross rod through screws.