CN218219664U

CN218219664U - Back rest chair adjustable device of strength apparatus

Info

Publication number: CN218219664U
Application number: CN202222587946.5U
Authority: CN
Inventors: 张德峰
Original assignee: Shandong Luosai Luode Health Industry Co ltd
Current assignee: Shandong Luosai Luode Health Industry Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-06
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses an adjustable device of back chair of strength apparatus, including seat support, seatpad, back, round bubble cotton column is located seatpad front end downside, seatpad downside side links to each other with the seat support front end is fixed, and the left and right sides symmetry of seatpad is equipped with left handrail and right handrail, and left handrail downside is equipped with the brake handle, brake handle rear end links to each other with the arm-tie axle mount through acting as go-between, the cooperation of arm-tie axle and regulating plate lower extreme, the fixed linking to each other of preceding montant among regulating plate upper end and the parallel four-bar linkage, parallel four-bar linkage comprises preceding montant, back montant, lower horizontal rod, last horizon bar, lower horizontal rod downside links to each other with the seat support is fixed, it links to each other with the back is fixed to go up the horizon bar front end, preceding montant upper end gas vaulting pole upper end is articulated to link to each other, the gas vaulting pole lower extreme links to each other with back montant lower extreme. The device can realize the adjustment of the angle of the backrest and has the advantages of simple structure, low cost, convenient use and the like.

Description

Back rest chair adjustable device of strength apparatus

Technical Field

The utility model relates to the technical field of fitness equipment, in particular to an adjustable device of a backrest chair of a strength instrument.

Background

With the continuous improvement of living standard of people, people pay more and more attention to health, people select outdoor sports and people select indoor sports, but most of people can select the gym to build body under the guidance of a professional coach, and people of different ages, different heights and different weights can select the gym to build body, so that higher requirements are provided for the universality, adjustability and applicability of the fitness equipment. The adjustable seat has the advantages that the higher requirement is particularly provided for the adjustability of the seat arranged on the strength exercise machine, the seat of the strength exercise machine in the market at present is a fixed seat cushion and a fixed backrest, and cannot be adjusted, so that people with different body types and habits can reluctantly adapt to the machine, the poor experience is brought to fitness personnel, and the injury to the body can be caused due to the fact that the seat is not suitable in the exercise process. Therefore, an adjustable force instrument backrest chair adjusting device with simple structure and convenient use is urgently needed to solve the problem which always puzzles the technical personnel in the field in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a strength apparatus's adjustable device of back chair, it is connected for parallel four-bar linkage to link the optimization through the stationary phase with the back among the prior art and seat support to increase the floodgate handle, the acting as go-between, the axis of pulling pin, the opening of the locking mechanism control back angle modulation that the regulating plate is constituteed, adopt the gas vaulting pole cooperation fitness person back to realize the angle modulation of strength apparatus's back hard, satisfy different height weight users and adjust to the seat travelling comfort, the perfect difficult problem of having solved improvement in the above-mentioned technical background.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an adjustable device of back chair of strength apparatus, includes seat support, seatpad, back, round bubble cotton column, left handrail, right handrail, round bubble cotton column is located seatpad front end downside and fixes in the frame of strength apparatus, seatpad downside side is fixed continuous with the seat support front end, the left and right sides symmetry of seatpad is equipped with left handrail and right handrail, left handrail passes through U type frame with right handrail and links to each other and link to each other its characterized in that through U type frame and seat support is fixed: the utility model discloses a chair, including left handrail, brake lever, regulating plate, adjusting plate, horizontal rod, back four-bar linkage mechanism, horizontal rod, back montant, upper horizontal rod, adjusting plate upper end, front montant lower extreme, the horizontal rod downside links to each other with the seat support is fixed, the left side handrail downside is equipped with brake handle, brake handle passes through the handle frame to be fixed in left handrail region, brake handle rear end links to each other with the pull pin axle mount through acting as go-between, pull pin axle mount links to each other with the seat support is fixed, the pull pin axle mount links to each other with the seat support is fixed, parallel four-bar linkage mechanism comprises front montant, back montant, lower horizontal rod, upper horizontal rod, the upper horizontal rod middle part links to each other with the front end of front montant is articulated, the upper horizontal rod front end links to each other with the back is fixed, the upper end of front horizontal rod links to each other with the upper montant lower extreme is articulated, the back montant upper end links to each other with the upper horizontal rod rear end, the upper horizontal rod middle part links to each other with the upper horizontal rod front end links to each other with the back is articulated, the upper end of air vaulting pole links to each other with the lower extreme of back montant.

Further preferably, the front vertical rod consists of a left front vertical rod and a right front vertical rod, the upper end of the left front vertical rod and the upper end of the right front vertical rod are coaxially hinged with the middle of the upper horizontal rod, and the lower end of the left front vertical rod and the lower end of the right front vertical rod are coaxially hinged with the front end of the lower horizontal rod.

Further preferably, the rear vertical rod consists of a left rear vertical rod and a right rear vertical rod, the upper end of the left rear vertical rod and the upper end of the right rear vertical rod are coaxially hinged to the rear end of the upper horizontal rod, and the lower end of the left rear vertical rod and the lower end of the right rear vertical rod are coaxially hinged to the rear end of the lower horizontal rod.

Further preferably, a plurality of pull pin shaft through holes are uniformly distributed at the lower end of the adjusting plate in the arc direction, and an arc groove is formed in the middle of the adjusting plate.

Further preferably, a limiting shaft is arranged on one side of the upper end of the seat support and is connected with the arc groove in the middle of the adjusting plate in a matched mode.

The utility model has the advantages that:

the adjustable device of the backrest chair of the force instrument is produced by matching the existing force instrument according to the technical characteristics, the existing structural design can be optimized and improved, the front vertical rod consists of a left front vertical rod and a right front vertical rod, the upper end of the left front vertical rod and the upper end of the right front vertical rod are coaxially hinged and connected with the middle part of the upper horizontal rod, and the lower end of the left front vertical rod and the lower end of the right front vertical rod are coaxially hinged and connected with the front end of the lower horizontal rod; the rear vertical rod consists of a left rear vertical rod and a right rear vertical rod, the upper end of the left rear vertical rod and the upper end of the right rear vertical rod are coaxially hinged and connected with the rear end of the upper horizontal rod, and the lower end of the left rear vertical rod and the lower end of the right rear vertical rod are coaxially hinged and connected with the rear end of the lower horizontal rod; the front vertical rod and the rear vertical rod both adopt a double-rod structure, and the purpose is to increase the stability of the parallel four-bar mechanism and the reliability of the motion process. A plurality of pull pin shaft through holes are uniformly distributed at the lower end of the adjusting plate in the arc direction, and the pull pin shaft through holes have the function of increasing the front-back movement gradient of the adjusting plate. The limiting shaft is arranged on one side of the upper end of the seat support and is connected with the adjusting plate in a matched mode through the arc groove in the middle of the adjusting plate, the limiting shaft can limit the limiting position of the adjusting plate moving forwards and backwards, the upper end of the adjusting plate is fixedly connected with the front vertical rod, the limiting shaft limits the front and back limiting positions of the movement of the parallel four-bar linkage structure, and finally the limiting position of the backrest back and forth movement is limited.

The user firstly sits on the seat cushion, hooks the round foam column with the feet and feels whether the backrest is leaned forwards or backwards. If the user feels that the user leans back, the user holds the right armrest by the right hand, the user holds the brake handle below the left armrest lightly by the left hand, the back tightly props against the backrest slightly, the user holds the brake handle firmly by the left hand, the pull pin shaft slowly moves outwards under the traction of the brake cable until the brake handle is separated from the pull pin shaft through hole in the adjusting plate, at the moment, the backrest is under the action of the air support rod in the parallel four-bar linkage mechanism, the air support rod enables the parallel four-bar linkage mechanism to deform under the pushing of the self pressure, the backrest is further driven to move forwards until the position is proper, the brake handle of the user is loosened lightly, and the pull pin shaft can be slowly inserted into the pull pin shaft through hole of the nearest adjusting plate under the elastic action of the internal spring.

Similarly, if the user feels that the backrest leans forward, the user exerts force on the back and then moves backward with a force greater than the pressure of the air stay bar. Prop the back and slowly move backward until feeling that the back position is suitable, slowly loosen the brake handle held by the left hand, and the pull pin shaft can be slowly inserted into the pull pin shaft through hole of the nearest adjusting plate under the elastic action of the internal spring.

The back and forth adjustment function when satisfying the training person of different height weight and using the back, the long people of high sub-leg can adjust the back and make the back move backward, has the person of disadvantage to the height, can adjust the back and move forward, and then reaches body-building fan's motion experience and the purpose of best motion effect.

Drawings

Fig. 1 is a schematic diagram of the whole shaft side structure of the present invention.

Fig. 2 is the schematic diagram of the shaft side structure of the local structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a seat cushion; 2. a right armrest; 3. a backrest; 4. an adjusting plate; 5. a right front vertical bar; 6. a right rear vertical bar; 7. an upper horizontal bar; 8. a left rear vertical bar; 9. a gas strut; 10. a left front vertical bar; 11. a pull pin shaft fixing frame; 12. pulling a wire; 13. a seat support; 14. a U-shaped frame; 15. a handle frame; 16. a brake handle; 17. a left armrest; 18. a round foam column; 19. a lower horizontal bar; 20. a limiting shaft; 21. and pulling the pin shaft.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 and 2, the seat comprises a seat support 13, a seat cushion 1, a backrest 3, a round foam column 18, a left armrest 17, a right armrest 2, a parallel four-bar linkage mechanism, an air stay 9, a brake handle 16, a pull wire 12, a pull pin shaft 21 and an adjusting plate 4, wherein the round foam column 18 is positioned at the lower side of the front end of the seat cushion 1 and fixed on a frame of a strength instrument, the lower side surface of the seat cushion 1 is fixedly connected with the front end of the seat support 13, the left armrest 17 and the right armrest 2 are symmetrically arranged at the left side and the right side of the seat cushion 13, and the left armrest 17 and the right armrest 2 are connected through a U-shaped frame 14 and are fixedly connected with the seat support 13 through the U-shaped frame 14; the lower side of the left armrest 17 is provided with a brake handle 16, the brake handle 16 is fixed in the left armrest area through a handle frame 15, the rear end of the brake handle 16 is connected with a pull pin shaft fixing frame 11 through a pull wire 12, the pull pin shaft fixing frame 11 is fixedly connected with a seat support 13, a brake wire is arranged inside the pull wire 12 and connected with a pull pin shaft 21, the pull pin shaft 21 is matched with the lower end of an adjusting plate 4, a plurality of pull pin shaft through holes are uniformly distributed in the lower end of the adjusting plate 4 in the arc direction, and the brake handle is used for increasing the front-back movement gradient of the backrest 3.

An arc groove is formed in the middle of the adjusting plate 4, a limiting shaft 20 is arranged on one side of the upper end of the seat support 13, and the limiting shaft 20 is connected with the arc groove in the middle of the adjusting plate 4 in a matched mode; the limiting shaft 20 can limit the limit position of the adjusting plate 4 moving forwards and backwards, because the upper end of the adjusting plate 4 is fixedly connected with the left front vertical rod 10, the limiting shaft 20 limits the front and back limit positions of the movement of the parallel four-bar linkage structure, and finally the limit position of the back 3 limiting the front and back movement is reached.

The upper end of the adjusting plate 4 is fixedly connected with a left front vertical rod 10 in a parallel four-bar linkage mechanism, the parallel four-bar linkage mechanism is composed of a front vertical rod, a rear vertical rod, a lower horizontal rod 19 and an upper horizontal rod 7, the front vertical rod is composed of a left front vertical rod 10 and a right front vertical rod 5, the upper end of the left front vertical rod 10 and the upper end of the right front vertical rod 5 are coaxially hinged and connected with the middle part of the upper horizontal rod 7, and the lower end of the left front vertical rod 10 and the lower end of the right front vertical rod 5 are coaxially hinged and connected with the front end of the lower horizontal rod 19; the front vertical rod and the rear vertical rod both adopt a double-rod structure, and the purpose is to increase the stability of the parallel four-bar mechanism and the reliability of the motion process.

The rear vertical rod consists of a left rear vertical rod 8 and a right rear vertical rod 6, the upper end of the left rear vertical rod 8 and the upper end of the right rear vertical rod 6 are coaxially hinged with the rear end of the upper horizontal rod 7, and the lower end of the left rear vertical rod 8 and the lower end of the right rear vertical rod 6 are coaxially hinged with the rear end of the lower horizontal rod 19.

The upper end of regulating plate 4, the lower extreme of left front montant 10 adopt same articulated shaft to link to each other with the front end of lower horizontal pole 19 is articulated, and lower horizontal pole 19 downside links to each other with seat support 13 is fixed, and the front end of going up horizontal pole 7 links to each other with back 3 is fixed, and the upper end of left front montant 10 links to each other with the upper end of gas vaulting pole 9 is articulated, and the lower extreme of gas vaulting pole 9 links to each other with the lower extreme of left back montant 8 is articulated.

The backrest chair adjustable device of the power apparatus is produced by matching the existing power apparatus according to the technical characteristics, the existing structural design can be optimized and improved, and a user firstly sits on the seat cushion 1, hooks the two feet on the round foam column 18 and feels whether the position of the backrest 3 is leaned forwards or backwards. If the user feels that the user leans backwards, the right hand holds the right armrest 2, the left hand holds the brake handle 16 below the left armrest 17 lightly, the back tightly props against the backrest 3 slightly, the left hand holds the brake handle 16 firmly, the pull pin shaft 21 is pulled by the brake cable at this time and moves outwards slowly until the pull pin shaft is separated from the pull pin shaft through hole in the adjusting plate 4, the backrest 3 is under the action of the air support rod 9 inside the parallel four-bar linkage mechanism, the parallel four-bar linkage mechanism is deformed due to the pushing of the air support rod 9 under the self pressure, the backrest 3 is driven to move forwards until the position is proper, the brake handle 16 of the left hand is loosened lightly, and the pull pin shaft 21 is inserted into the pull pin shaft through hole of the nearest adjusting plate 4 slowly under the elastic action of the internal spring.

Similarly, if the user feels that the backrest 3 is leaned forward, the user exerts a force on the back and then moves backward with a force greater than the pressure of the air stay 9. The brake handle 16 which is held by the left hand is slowly loosened until the backrest 3 is sensed to be in a proper position, and the pull pin shaft 21 is slowly inserted into the pull pin shaft through hole of the nearest adjusting plate 4 under the elastic action of the internal spring.

The front and back adjusting function of the trainer meeting different body heights and weights when the trainer uses the backrest 3, the person with a high child leg length can adjust the backrest 3 to enable the backrest 3 to move backwards, and the backrest 3 can be adjusted to move forwards for the person with a low height, so that the exercise experience of fitness enthusiasts and the purpose of the best exercise effect are achieved

The embodiment is only an illustration of the concept and implementation of the present invention, and is not a limitation, and the technical solution without substantial transformation is still within the protection scope under the concept of the present invention.

Claims

1. The utility model provides an adjustable device of back chair of strength apparatus, includes seat support, seatpad, back, round bubble cotton column, left handrail, right handrail, round bubble cotton column is located seatpad front end downside and fixes in the frame of strength apparatus, seatpad downside side is fixed continuous with the seat support front end, the left and right sides symmetry of seatpad is equipped with left handrail and right handrail, left handrail passes through U type frame with right handrail and links to each other and link to each other its characterized in that through U type frame and seat support is fixed: the utility model discloses a chair, including left side handrail, brake lever, regulating plate, adjusting plate, back four-bar linkage mechanism, horizontal rod, upper horizontal rod, back montant, upper horizontal rod middle part and preceding montant upper end are articulated to link to each other, the upper horizontal rod front end links to each other with the back is articulated, the upper end of front horizontal rod links to each other with the upper horizontal rod, the upper horizontal rod rear end links to each other with the back is articulated, the lower extreme of gas vaulting pole links to each other with the articulated lower extreme of back montant, the brake lever passes through the handle frame to be fixed in left handrail region, the brake lever rear end links to each other with the pull pin axle mount through acting as go-between, the pull pin axle is fixed to link to each other with the regulating plate lower extreme, the parallel four-bar linkage mechanism comprises front montant, back montant, lower horizontal rod, upper horizontal rod is articulated continuous with the front montant upper end, the upper horizontal rod front end links to each other with the back is fixed, the upper end of front pole is articulated continuous with the upper end of gas vaulting pole, the lower extreme of gas vaulting pole links to each other with the articulated lower extreme of back montant.

2. The back rest adjustable device of power apparatus of claim 1, wherein: the front vertical rod consists of a left front vertical rod and a right front vertical rod, the upper end of the left front vertical rod and the upper end of the right front vertical rod are coaxially hinged with the middle part of the upper horizontal rod, and the lower end of the left front vertical rod and the lower end of the right front vertical rod are coaxially hinged with the front end of the lower horizontal rod.

3. The back rest adjustable device of power apparatus of claim 1, wherein: the rear vertical rod consists of a left rear vertical rod and a right rear vertical rod, the upper end of the left rear vertical rod and the upper end of the right rear vertical rod are coaxially hinged with the rear end of the upper horizontal rod, and the lower end of the left rear vertical rod and the lower end of the right rear vertical rod are coaxially hinged with the rear end of the lower horizontal rod.

4. The adjustable back rest chair device of power apparatus of claim 1, wherein: a plurality of pull pin shaft through holes are uniformly distributed at the lower end of the adjusting plate in the arc direction, and an arc groove is formed in the middle of the adjusting plate.

5. The back rest adjustable device of power apparatus of claim 1 or claim 4, wherein: a limiting shaft is arranged on one side of the upper end of the seat support and is connected with the arc groove in the middle of the adjusting plate in a matched mode.