CN217204636U

CN217204636U - Adjustable supporting leg for folding board house

Info

Publication number: CN217204636U
Application number: CN202220536181.XU
Authority: CN
Inventors: 高琳; 樊霞; 郑魏; 梁翠娟; 朱长宏
Original assignee: Qinhuangdao Aosener Garment Co ltd
Current assignee: Qinhuangdao Aosener Garment Co ltd; Tianjin Aosener Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-08-16
Anticipated expiration: 2032-03-11

Abstract

The utility model relates to a folding board house technical field, especially an adjustable supporting legs for folding board house. Comprises a chassis, a supporting frame and an upper base; three sliding grooves are arranged on the chassis, and two racks are correspondingly arranged on the inner wall of each sliding groove; the support frame comprises a central support body, a central support ball, a sliding block and a support arm; one end of the supporting arm is hinged with the side part of the central supporting body, the other end of the supporting arm is hinged with the sliding block, and the sliding block is provided with two gears which are respectively meshed with the racks on the two sides of the sliding groove; the upper base comprises an upper base fixing plate, and a left positioning supporting seat and a right positioning supporting seat which are fixed on the upper base fixing plate, wherein the left positioning supporting seat and the right positioning supporting seat are correspondingly provided with hemispherical grooves, and the hemispherical grooves cover the central supporting ball. The utility model discloses the too big phenomenon of screw thread stress bearing when having avoided using the double-screw bolt to the supporting legs chassis need not to place subaerial at absolute level, can adapt to complex environment's folding board house ground leveling.

Description

Adjustable supporting leg for folding board house

Technical Field

The utility model relates to a folding board house technical field, especially an adjustable supporting legs for folding board house.

Background

Due to the environmental demands of transportation, construction sites and field operations in recent years, folded plate houses are increasingly applied to the fields of emergency, army, construction and the like. For the field environment that the folding board house was used, adjustable supporting legs is essential device, generally realizes whole level control through the height of adjusting the supporting legs. The traditional adjustable supporting legs are all adjusted in height by means of studs and are used for folding four bottom corners of a board house. Although the four corners are not guaranteed to be completely in the same plane, the chassis of each supporting foot is required to be in an absolute horizontal plane, and the screw thread of the stud is subjected to too concentrated pressure and is easy to break and damage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an effectual problem among the above-mentioned background of solution provides an adjustable supporting legs for folding board house.

The specific technical scheme is as follows:

an adjustable supporting leg for a folding board house comprises a chassis, a supporting frame and an upper base;

the chassis is provided with three sliding grooves, an angle of 120 degrees is formed between the three sliding grooves, a circular central groove communicated with the sliding grooves is formed in the junction of the three sliding grooves, and two racks are correspondingly arranged on the inner wall of each sliding groove;

the support frame comprises a central support body, a central support ball, a sliding block and a support arm; the central support balls are fixed at the central position of the upper part of the central support arm, the number of the support arms is three, one end of each support arm is hinged with the side part of the central support body, the other end of each support arm is hinged with the sliding block, the sliding blocks are three and are respectively arranged in the sliding grooves, two gears are arranged on the sliding blocks and are respectively meshed with racks on two sides of the sliding grooves, locking positioning pin holes are arranged on the sliding blocks, and locking pins are arranged in the locking positioning pin holes and used for limiting the racks to rotate;

the upper base comprises an upper base fixing plate, a left positioning supporting seat and a right positioning supporting seat, the left positioning supporting seat and the right positioning supporting seat are fixed on the upper base fixing plate through bolts, hemispherical grooves are correspondingly formed in the left positioning supporting seat and the right positioning supporting seat, and the hemispherical grooves cover the central support balls.

Preferably, the upper base is fixed at the bottoms of the four corners of the folding board house through the hexagon bolts at the four corners of the fixing plate of the upper base.

Preferably, said central support is an equilateral triangle.

Preferably, guide grooves are formed in two sides of the sliding block, and the rack penetrates through the guide grooves.

Compared with the prior art, the beneficial effects of the utility model are that: compared with the prior art, the utility model discloses an establish the position of the movable block of gear in the three support arm hinged joint and prescribe a limit to and come height-adjusting to every support arm can independent adjusting position. The phenomenon that the thread bears overlarge stress when the stud is used for adjustment is avoided, and the supporting leg chassis is not required to be placed on the ground which is absolutely horizontal, so that the folding board house ground leveling device can adapt to the complex environment.

Drawings

Fig. 1 is a top view of the support frame and the chassis of the present invention;

FIG. 2 is a perspective view of the support frame of the present invention at the extreme position of the chassis;

FIG. 3 is a view showing a supporting state of the support stand of FIG.;

FIG. 4 is a view of the installation positions of the middle chassis, the supporting frame and the upper base of the present invention;

fig. 5 is a perspective view of the sliding block of the present invention;

figure 6 is a cross-sectional view of the sliding block of the present invention;

fig. 7 is a top view of the upper base of the present invention;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

in the figure: 1. a chassis; 2. a first sliding block; 3. a support frame; 4. an upper base; 5. a second sliding block; 6. a third sliding block; 7. a third support arm; 8. a central support; 9. a central support ball; 10. a first rack; 12. a third rack; 13. a fourth rack; 14. a fifth rack; 15. a sixth rack; 16. a first sliding groove; 17. a second sliding groove; 18. a third sliding groove; 19. a circular central slot; 20. locking the positioning pin hole; 21. a gear post; 22. a right gear; 23. a left gear; 24. an upper base fixing plate; 25. a left positioning support seat; 26. a right positioning support seat; 27. a bolt; 28. a hexagon bolt; 29. a first counterbore; 30. a circular groove; 31. a second counterbore; 32. a hemispherical groove; 33. a first hinge; 34. a second hinge; 35. a second support arm; 36. a first support arm.

Detailed Description

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

The following detailed description of the preferred embodiments of the present invention is provided in connection with the accompanying drawings.

As shown in fig. 1-8, the utility model mainly comprises: a chassis 1; a support frame 3; an upper base 4.

The chassis 1 includes: a first sliding groove 16, a second sliding groove 17, a third sliding groove 18, and a circular center groove 19 provided at a center position. Wherein, a first rack 10 and a second rack 11 are arranged on both sides of the first sliding slot 16. And a third rack 12 and a fourth rack 13 are arranged on two sides of the second sliding groove 17. A fifth rack 14 and a sixth rack 15 are arranged on two sides of the third sliding groove 18.

The support frame includes 3: a central support 8; a central support ball 9; a first sliding block 2; a second sliding block 5; a third sliding block 6; a first support arm 36; a second support arm 35; a third support arm 7. The first sliding block 2, the second sliding block 5 and the third sliding block 6 have the same structure. If the second sliding block 5 includes: a left gear column 24, a right gear column 21, a right gear 22, a left gear 23 and four locking dowel holes 20. The locking pin is inserted into the locking pin hole 20 to lock and fix the gear.

A second hinge 34 (not shown) is provided between the central support 8 and the first support arm 36 for connection. Likewise, between the central support 8 and the second support arm 35; the same hinge structure is provided between the central support 8 and the third support arm 7. A first hinge 33 (not shown) is provided between the first support arm 36 and the first sliding block 2. Similarly, the same hinge structure is provided between the second support arm 35 and the second slide block 5, and between the third support arm 7 and the third slide block 6.

The upper base 4 includes: an upper base fixing plate 24, a left positioning support 25 and a right positioning support 26.

Wherein the left positioning support 25 and the right positioning support 26 have the same structure. For example, the left positioning support seat 25 has two second counter sunk holes 31 and a hemispherical groove 32. Wherein, the center of the upper base fixing plate 24 is provided with a circular groove 30 arranged at the center, four first counter sunk holes 29 are arranged at the periphery, and four threaded holes 37 are arranged at the periphery of the circular groove 30.

The specific implementation scheme is as follows:

the left positioning support 25 and the right positioning support 26 are wrapped around the center support ball 9, and then the left positioning support 25 and the right positioning support 26 are installed in the circular groove 30 of the upper base fixing plate 24 by four bolts 27. Thereby realizing the connection of the upper base 4 and the supporting frame 3.

The upper base 4 is fixed at the bottom of four corners of the folding board house through the hexagon bolts 28 at four corners of the upper base fixing plate 24.

The left gear 23 and the right gear 22 in the first sliding block 2 are fixed on the inner side of the first sliding block 2 through the left gear column 24 and the right gear column 21. Passing between the left gear 23 and the right gear 22; between the left gear 23 and the first rack 10; three meshing positions between the right gear 22 and the second rack 11 are used for realizing the sliding of the first sliding block 2 in the first sliding groove 16. The angle of the first support arm 36 is changed by the sliding of the first sliding block 2, thereby changing the vertical height of the central support 8. Similarly, the second slider 5 and the third slider 6 have the same structure, the second slider 5 changes the angle of the second support arm 35 by sliding in the second slide groove 17, and the third slider 6 changes the angle of the third support arm 7 by sliding in the third slide groove 18.

The first support arm 36, the second support arm 35 and the third support arm 7 can move relatively independently, the height of the whole support foot can be adjusted by changing the angles of the three support arms and the rotating position of the central support ball 9, and the chassis 1 can be kept horizontal when being positioned on relatively inclined ground.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an adjustable supporting legs for folding board room which characterized in that: comprises a chassis, a supporting frame and an upper base;

2. The adjustable supporting foot for folding board house as claimed in claim 1, wherein the upper base is fixed at the bottom of four corners of the folding board house by hexagonal bolts at four corners of the upper base fixing plate.

3. An adjustable support foot for a folding board house according to claim 1, characterised in that the central support is an equilateral triangle.

4. The adjustable support foot for folding board houses as claimed in claim 1, wherein the two sides of the sliding block are provided with guide slots, and the rack passes through the guide slots.