CN222068173U

CN222068173U - Foldable support frame

Info

Publication number: CN222068173U
Application number: CN202420597137.9U
Authority: CN
Inventors: 盛晶; 丁培书; 郑重; 吴绍冲
Original assignee: Jinhua Yahu Tools Co Ltd
Current assignee: Jinhua Yahu Tools Co Ltd
Priority date: 2024-03-25
Filing date: 2024-03-25
Publication date: 2024-11-26
Anticipated expiration: 2034-03-25

Abstract

The utility model discloses a foldable support frame, including a front support frame and a rear support frame, a scissor assembly connecting the front support frame and the rear support frame is provided between the front support frame and the rear support frame; the scissor assembly includes a first connecting rod and a second connecting rod arranged in pairs, and the first connecting rod and the second connecting rod are hinged to each other; a placement platform is also provided between the front support frame and the rear support frame, and the placement platform includes a first platform and a second platform hinged to each other, the edge of the first platform is hinged to the front support frame, and the edge of the second platform is hinged to the rear support frame; a locking piece hinged to the rear support frame is provided on the rear support frame, and a locking assembly is provided on the front support frame, and the locking assembly includes a locking pin. The utility model connects the front support frame and the rear support frame through the scissor assembly, and the legs of the support frame are arranged vertically after the support frame is unfolded, so that it is convenient to install a workbench horizontally externally on the support frame, and the workbench and the support frame have a good overall support effect; at the same time, the support frame occupies a small space after being folded, and is convenient to carry.

Description

Foldable support frame

Technical Field

The utility model belongs to the technical field of support frames, and particularly relates to a foldable support frame.

Background

In life, the support frame is usually used for supporting articles, and the support frame is light in structure and convenient to carry. A typical support frame often includes legs that can be folded over one another and a mounting plate; currently, an X-shaped table saw support is disclosed in the market, and the bulletin number is CN218699671U; in the prior art, a first supporting frame and a second supporting frame are mutually hinged, and a folding connecting rod is arranged between the first supporting leg and the second supporting leg, so that the unfolding angle of the first supporting leg and the second supporting leg is limited; the first support leg is provided with a first mounting plate, and the second support leg is provided with a second mounting plate; the first mounting plate and the second mounting plate are arranged separately, so that the placement space is small and the supporting effect is poor; because the first stabilizer blade and second stabilizer blade all have the inclination contained angle with the horizontal plane, place great article and article on first mounting panel and second mounting panel and when not centering, the focus of support frame and article will be in the outside of support frame, and the support frame will have the risk of empting like this. After the first support frame and the second support frame are mutually folded, the first support leg and the second support leg are mutually turned outwards, so that a large space is occupied, and the carrying by a user is inconvenient.

Disclosure of Invention

The utility model designs a foldable support frame aiming at the problems in the prior art, the front support foot rest and the rear support foot rest are connected through the scissors assembly, the support legs of the support frame after being unfolded are vertically arranged, a workbench is conveniently and horizontally externally connected to the support frame, and the integral supporting effect of the workbench and the support frame is good; meanwhile, the support frame occupies small space after being folded, and is convenient to carry.

The utility model aims at realizing the following technical scheme: the foldable support frame comprises a front support foot rest and a rear support foot rest, wherein a scissor assembly for connecting the front support foot rest and the rear support foot rest is arranged between the front support foot rest and the rear support foot rest; the scissors assembly comprises a first connecting rod and a second connecting rod which are arranged in pairs, and the first connecting rod and the second connecting rod are mutually hinged; one end of the first connecting rod is hinged with the rear supporting foot rest, the other end is connected with the front support foot rest in a sliding way; one end of the second connecting rod is hinged with the front supporting foot rest, the other end is connected with the rear supporting foot rest in a sliding way; a placing platform is further arranged between the front supporting foot rest and the rear supporting foot rest, the placing platform comprises a first platform and a second platform which are mutually hinged, the edge of the first platform is hinged with the front supporting foot rest, and the edge of the second platform is hinged with the rear supporting foot rest; the rear support foot rest is provided with a locking piece hinged with the rear support foot rest, the front support foot rest is provided with a locking component for locking the locking piece, and the locking component comprises a locking pin which can stretch relative to the front support foot rest.

Preferably, the front supporting foot rest comprises first feet which are arranged in pairs, and a first transverse bar for connecting the two first feet is arranged between the two first feet; the rear supporting foot rest comprises second supporting feet which are arranged in pairs, and a second transverse bar for connecting the two second supporting feet is arranged between the two second supporting feet; the first support leg is provided with a first strip-shaped hole for installing the first connecting rod, and the second support leg is provided with a second strip-shaped hole for installing the second connecting rod.

By arranging the first transverse bar, the structure of the front support foot rest is more stable; by arranging the second transverse bar, the structure of the front support foot rest is more stable; holes are formed in the first transverse baffle and the second transverse baffle, so that the fixed ropes can be conveniently inserted and fixed, and the universality is good. Through setting up first bar hole, the first connecting rod of easy to assemble like this, through setting up the second bar hole, the second connecting rod of easy to assemble like this.

Preferably, a first handle is further arranged between the two first support legs, and the tail end of the first handle is hinged with the first support legs; and a second handle is further arranged between the two second support legs, and the tail end of the second handle is hinged with the second support legs.

Through setting up first handle and second handle, make things convenient for front support foot rest and back support foot rest to expand and fold each other like this. Meanwhile, after the front support foot rest and the rear support foot rest are mutually folded, the front support foot rest and the rear support foot rest are convenient to carry through the first handle and the second handle, and are suitable for carrying with people.

Preferably, the tail end of the first connecting rod is provided with a first limiting pin fixedly connected with the first connecting rod, and the tail end of the second connecting rod is provided with a second limiting pin fixedly connected with the second connecting rod; the first limiting pin is slidably arranged in the first strip-shaped hole, and the second limiting pin is slidably arranged in the second strip-shaped hole; the first strip-shaped hole is arranged along the axial direction of the first support leg, and the second strip-shaped hole is arranged along the axial direction of the second support leg.

The first limiting pin is arranged in the first strip-shaped hole, so that the first connecting rod can slide relative to the first supporting leg and also can rotate relative to the first supporting leg; similarly, the second connecting rod can slide relative to the second support leg and also can rotate relative to the second support leg; the expanding distance between the front support foot rest and the rear support foot rest can be limited through the scissors assembly, and the supporting effect of the front support foot rest and the rear support foot rest can be enhanced.

Preferably, the first strip-shaped hole and the second strip-shaped hole are arranged at the same horizontal height, and the axial lengths of the first strip-shaped hole and the second strip-shaped hole are the same; the tail ends of the first strip-shaped holes and the second strip-shaped holes are higher than the upper end face of the placing platform. The placement platform will be less than first bar hole and the setting of second bar hole like this, and placement platform's focus is lower then, and the supporting stability after preceding supporting foot rest and back supporting foot rest are mutually expanded is better.

Preferably, a first pin shaft for hinging the first connecting rod and the second connecting rod is arranged between the first connecting rod and the second connecting rod, and the first connecting rod and the second connecting rod are arranged in parallel front and back; the first support leg is provided with a first placing groove for accommodating the scissor assembly, and the second support leg is provided with a second placing groove for accommodating the scissor assembly; the groove widths of the first placing groove and the second placing groove are the same, the radial thickness of the first connecting rod and the second connecting rod after being mutually folded is matched with the groove width of the first placing groove, and the radial thickness of the first connecting rod and the second connecting rod after being mutually folded is matched with the groove width of the second placing groove.

The first placing groove and the second placing groove are arranged, so that the scissors assembly can be conveniently stored; after the front support foot rest and the rear support foot rest are folded, the scissors assembly is simultaneously contained in the first placing groove and the second placing groove, so that the space is not occupied; the folded front support foot rest and rear support foot rest have smaller volume, small occupied space and convenient carrying.

Preferably, the first support leg is arranged in a hollow manner, a locking assembly is arranged in the first support leg, and a locking piece hinged with the second support leg is arranged on the second support leg; the locking component comprises a lock pin, a pull ring and a return spring, and the lock pin is slidably arranged on the first support leg; the lock pin is provided with a limiting step, and the reset spring is sleeved on the lock pin; one end of the reset spring is abutted against the limiting step, and the other end of the reset spring is abutted against the inner wall of the first supporting leg; the pull ring is hinged with the tail end of the lock pin, the reset spring is in a compressed state in a default state, and the pull ring abuts against the outer wall of the first supporting leg; the locking piece is provided with a first lock hole, and the outline of the first lock hole is matched with the outline of the lock pin.

The reset spring is in a compressed state in a default state, and the lock pin is clamped on the first support leg due to the limiting step arranged on the lock pin. When the unlocking is needed, the pull ring is pulled to further compress the reset spring, so that the lock pin can be separated from the first lock hole. When the lock is needed, the lock pin is pulled to align with the first lock hole, and then the pull ring is released, so that the lock pin can be automatically clamped into the first lock hole. The support frame under the folding state can be locked through the locking component, and the support frame can not scatter under the folding state, and is convenient to transport and carry.

Preferably, a second pin shaft for hinging the first platform and the second platform is arranged between the first platform and the second platform, and a plurality of storage grooves which are uniformly distributed are formed in the first platform and the second platform.

Through setting up first platform and second platform, increased the joint strength of preceding supporting foot rest and back supporting foot rest like this, it is more stable when preceding supporting foot rest and back supporting foot rest expand, the supporting effect is better. Meanwhile, the storage grooves are formed in the first platform and the second platform, so that a user can conveniently place tools in the storage grooves, and the tools cannot slide off the storage platforms.

Preferably, the tops of the front support foot rest and the rear support foot rest are respectively provided with a limiting protrusion; the rear support foot rest is provided with a hinge assembly which is detachably connected with the rear support foot rest, and the hinge assembly comprises a first hinge and a second hinge which are mutually hinged; the first hinge is detachably connected with the rear supporting foot rest; the second hinge is provided with a workbench which is detachably connected with the second hinge.

When a workbench is required to be externally connected to the support frame, the rear support foot rest is connected with the workbench through the hinge assembly, so that the workbench can be turned over relative to the rear support foot rest; then the workbench is rotated to a position attached to the front support foot rest and the rear support foot rest; because the front support foot rest and the rear support foot rest are respectively provided with the limiting protrusions, the workbench is provided with the hole sites corresponding to the limiting protrusions, and therefore the workbench can be stably mounted on the support frame.

Compared with the prior art, the utility model has the following beneficial effects: the scissors assembly is arranged between the front support foot rest and the rear support foot rest, so that the support frame can be unfolded and folded conveniently, and the unfolding distance between the front support foot rest and the rear support foot rest is limited. Because the front support foot rest and the rear support foot rest are arranged vertically after being unfolded, acting force can be uniformly distributed on the four supporting feet when the workbench is placed on the supporting frame, and thus the overall supporting effect of the supporting feet is better. Secondly, the front support foot rest and the rear support foot rest are arranged in parallel after being folded, so that the folding bicycle is small in occupied space and convenient to carry. Simultaneously, through the preceding supporting foot rest of locking subassembly locking after folding and back supporting foot rest, safe and reliable more in carrying and transportation.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a perspective view of the present utility model in a folded state;

FIG. 4 is a view showing the working state of the utility model when the working table is matched;

FIG. 5 is a view of another view of the present utility model;

Fig. 6 is an exploded view of the locking assembly.

The marks in the figure: 1. a front support foot rest; 11. a first leg; 12. a first rail; 13. a first bar-shaped hole; 14. a first handle; 15. a first placement groove; 2. a rear support foot rest; 21. a second leg; 22. a second rail; 23. a second bar-shaped hole; 24. a second handle; 25. a second placement groove; 3. a scissors assembly; 31. a first link; 32. a second link; 33. a first limit pin; 34. a second limiting pin; 35. a first pin; 4. placing a platform; 41. a first platform; 42. a second platform; 43. a second pin; 44. a storage groove; 5. a locking piece; 51. a first lock hole; 6. a locking assembly; 61. a locking pin; 62. a pull ring; 63. a return spring; 64. a limit step; 7. a limit protrusion; 8. a hinge assembly; 81. a first hinge; 82. a second hinge; 9. a working table.

Detailed Description

The utility model is further described below with reference to embodiments shown in the drawings in which:

As shown in fig. 1 to 6, the present embodiment discloses a foldable support frame, which includes a front support leg 1 and a rear support leg 2, and a scissors assembly 3 connecting the front support leg 1 and the rear support leg 2 is provided between them; the scissors assembly 3 comprises a first connecting rod 31 and a second connecting rod 32 which are arranged in pairs, and the first connecting rod 31 and the second connecting rod 32 are mutually hinged; one end of the first connecting rod 31 is hinged with the rear supporting foot rest 2, and the other end is connected with the front supporting foot rest 1 in a sliding way; one end of the second connecting rod 32 is hinged with the front support foot rest 1, and the other end is in sliding connection with the rear support foot rest 2; a placing platform 4 is further arranged between the front support foot rest 1 and the rear support foot rest 2, the placing platform 4 comprises a first platform 41 and a second platform 42 which are mutually hinged, the edge of the first platform 41 is hinged with the front support foot rest 1, and the edge of the second platform 42 is hinged with the rear support foot rest 2; the rear support foot rest 2 is provided with a locking piece 5 hinged with the rear support foot rest, the front support foot rest 1 is provided with a locking component 6 for locking the locking piece 5, and the locking component 6 comprises a locking pin 61 which can stretch and retract relative to the front support foot rest 1.

The front support foot rest 1 comprises first support feet 11 which are arranged in pairs, and a first transverse bar 12 for connecting the two first support feet 11 is arranged between the two first support feet 11; the rear supporting foot rest 2 comprises second support legs 21 which are arranged in pairs, and a second transverse bar 22 for connecting the two second support legs 21 is arranged between the two second support legs; the first leg 11 is provided with a first bar-shaped hole 13 for mounting the first connecting rod 31, and the second leg 21 is provided with a second bar-shaped hole 23 for mounting the second connecting rod 32. A first handle 14 is further arranged between the two first support legs 11, and the tail end of the first handle 14 is hinged with the first support legs 11; a second handle 24 is further arranged between the two second support legs 21, and the tail end of the second handle 24 is hinged with the second support legs 21. The tail end of the first connecting rod 31 is provided with a first limiting pin 33 fixedly connected with the first connecting rod, and the tail end of the second connecting rod 32 is provided with a second limiting pin 34 fixedly connected with the second connecting rod; the first limiting pin 33 is slidably mounted in the first strip-shaped hole 13, and the second limiting pin 34 is slidably mounted in the second strip-shaped hole 23; the first strip-shaped hole 13 is arranged along the axial direction of the first leg 11, and the second strip-shaped hole 23 is arranged along the axial direction of the second leg 21. The first strip-shaped hole 13 and the second strip-shaped hole 23 are arranged at the same horizontal height, and the axial lengths of the first strip-shaped hole and the second strip-shaped hole are the same; the tail ends of the first strip-shaped hole 13 and the second strip-shaped hole 23 are higher than the upper end face of the placing platform 4. A first pin shaft 35 for hinging the first connecting rod 31 and the second connecting rod 32 is arranged between the first connecting rod 31 and the second connecting rod 32, and the first connecting rod 31 and the second connecting rod 32 are arranged in parallel front and back; the first support leg 11 is provided with a first placing groove 15 for accommodating the scissor assembly 3, and the second support leg 21 is provided with a second placing groove 25 for accommodating the scissor assembly 3; the groove widths of the first placing groove 15 and the second placing groove 25 are the same, the radial thickness of the first connecting rod 31 and the second connecting rod 32 after being mutually folded is matched with the groove width of the first placing groove 15, and the radial thickness of the first connecting rod 31 and the second connecting rod 32 after being mutually folded is matched with the groove width of the second placing groove 25. The first support leg 11 is arranged in a hollow manner, the first support leg 11 is internally provided with a locking assembly 6, and the second support leg 21 is provided with a locking piece 5 hinged with the second support leg; the locking assembly 6 comprises a locking pin 61, a pull ring 62 and a return spring 63, wherein the locking pin 61 is slidably mounted on the first leg 11; the lock pin 61 is provided with a limit step 64, and the reset spring 63 is sleeved on the lock pin 61; one end of the return spring 63 abuts against the limit step 64, and the other end abuts against the inner wall of the first leg 11; the pull ring 62 is hinged with the tail end of the lock pin 61, the reset spring 63 is in a compressed state in a default state, and the pull ring 62 is abutted against the outer wall of the first support leg 11; the locking piece 5 is provided with a first locking hole 51, and the outline of the first locking hole 51 is matched with the outline of the locking pin 61.

A second pin shaft 43 for hinging the first platform 41 and the second platform 42 is arranged between the first platform 41 and the second platform 42, and a plurality of evenly distributed storage grooves 44 are arranged on the first platform 41 and the second platform 42. The tops of the front support foot rest 1 and the rear support foot rest 2 are respectively provided with a limiting protrusion 7; the rear support foot rest 2 is provided with a hinge assembly 8 which is detachably connected with the rear support foot rest, and the hinge assembly 8 comprises a first hinge 81 and a second hinge 82 which are mutually hinged; the first hinge 81 is detachably connected with the rear supporting foot rest 2; the second hinge 82 is provided with a workbench 9 detachably connected with the second hinge.

The specific operation process of this embodiment is as follows, when the support frame is needed, the front support foot rest 1 and the rear support foot rest 2 need to be unfolded; in the default state, the locking assembly 6 is in a locking state, the pull ring 62 is pulled to enable the lock pin 61 to be separated from the first lock hole 51, and then the locking piece 51 is rotated, so that the limit between the front support foot rest 1 and the rear support foot rest 2 is lost. Then the first handle 14 and the second handle 24 are pulled simultaneously, the front support foot rest 1 and the rear support foot rest 2 are far away from each other, and the scissor assembly 3 is unfolded synchronously. The first stop pin 33 will slide to the bottom of the first bar-shaped hole 13 and the second stop pin 34 will slide to the bottom of the second bar-shaped hole 23, and the support frame will be unfolded in place. At this time, if the working table 9 is required to be externally mounted, the working table 9 is connected to the rear support leg 2 through the hinge assembly 8, and then the working table 9 is rotated to enable the working table 9 to be attached to the end faces of the front support leg 1 and the rear support leg 2, so that the working can be performed on the working table 9.

When the support frame needs to be folded, the front support foot rest 1 is pushed to approach the rear support foot rest 2 and is locked by the locking piece 51 and the locking pin 61. Finally, the user can conveniently carry the support frame by taking the first handle 14 and the second handle 24.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The foldable support frame comprises a front support foot rest (1) and a rear support foot rest (2), and is characterized in that a scissors assembly (3) for connecting the front support foot rest (1) and the rear support foot rest (2) is arranged between the front support foot rest and the rear support foot rest; the scissors assembly (3) comprises a first connecting rod (31) and a second connecting rod (32) which are arranged in pairs, and the first connecting rod (31) and the second connecting rod (32) are mutually hinged; one end of the first connecting rod (31) is hinged with the rear supporting foot rest (2), and the other end is in sliding connection with the front supporting foot rest (1); one end of the second connecting rod (32) is hinged with the front supporting foot rest (1), and the other end is in sliding connection with the rear supporting foot rest (2); a placing platform (4) is further arranged between the front supporting foot rest (1) and the rear supporting foot rest (2), the placing platform (4) comprises a first platform (41) and a second platform (42) which are mutually hinged, the edge of the first platform (41) is hinged with the front supporting foot rest (1), and the edge of the second platform (42) is hinged with the rear supporting foot rest (2); the rear support foot rest (2) is provided with a locking piece (5) hinged with the rear support foot rest, the front support foot rest (1) is provided with a locking component (6) for locking the locking piece (5), and the locking component (6) comprises a locking pin (61) which can stretch relative to the front support foot rest (1).

2. A collapsible supporting frame according to claim 1, wherein the front supporting foot rest (1) comprises first feet (11) arranged in pairs, a first rail (12) connecting the two first feet (11) being provided between them; the rear supporting foot rest (2) comprises second supporting feet (21) which are arranged in pairs, and a second transverse bar (22) for connecting the two second supporting feet (21) is arranged between the two second supporting feet; the first support leg (11) is provided with a first strip-shaped hole (13) for installing a first connecting rod (31), and the second support leg (21) is provided with a second strip-shaped hole (23) for installing a second connecting rod (32).

3. A collapsible supporting frame according to claim 2, wherein a first handle (14) is further provided between the two first legs (11), the ends of the first handle (14) being hinged to the first legs (11); a second handle (24) is further arranged between the two second support legs (21), and the tail end of the second handle (24) is hinged with the second support legs (21).

4. The foldable support frame according to claim 2, characterized in that the end of the first connecting rod (31) is provided with a first limiting pin (33) fixedly connected with the first connecting rod, and the end of the second connecting rod (32) is provided with a second limiting pin (34) fixedly connected with the second connecting rod; the first limiting pin (33) is slidably arranged in the first strip-shaped hole (13), and the second limiting pin (34) is slidably arranged in the second strip-shaped hole (23); the first strip-shaped hole (13) is arranged along the axial direction of the first support leg (11), and the second strip-shaped hole (23) is arranged along the axial direction of the second support leg (21).

5. A collapsible supporting frame according to claim 3, wherein the first and second bar-shaped holes (13, 23) are arranged at the same level and have the same axial length; the tail ends of the first strip-shaped holes (13) and the second strip-shaped holes (23) are higher than the upper end face of the placing platform (4).

6. The foldable support frame according to claim 2, characterized in that a first pin (35) for hinging the first connecting rod (31) and the second connecting rod (32) is arranged between the first connecting rod (31) and the second connecting rod (32), and the first connecting rod (31) and the second connecting rod (32) are arranged side by side front and back; a first placing groove (15) for accommodating the scissor assembly (3) is formed in the first supporting leg (11), and a second placing groove (25) for accommodating the scissor assembly (3) is formed in the second supporting leg (21); the groove widths of the first placing groove (15) and the second placing groove (25) are the same, the radial thickness of the first connecting rod (31) and the second connecting rod (32) after being mutually folded is matched with the groove width of the first placing groove (15), and the radial thickness of the first connecting rod (31) and the second connecting rod (32) after being mutually folded is matched with the groove width of the second placing groove (25).

7. The foldable support frame according to claim 2, wherein the first leg (11) is hollow, the first leg (11) is provided with a locking assembly (6) therein, and the second leg (21) is provided with a locking piece (5) hinged thereto; the locking assembly (6) comprises a lock pin (61), a pull ring (62) and a return spring (63), wherein the lock pin (61) is slidably arranged on the first support leg (11); a limiting step (64) is arranged on the lock pin (61), and a return spring (63) is sleeved on the lock pin (61); one end of the return spring (63) is abutted against the limit step (64), and the other end is abutted against the inner wall of the first support leg (11); the pull ring (62) is hinged with the tail end of the lock pin (61), the reset spring (63) is in a compressed state in a default state, and the pull ring (62) is abutted against the outer wall of the first support leg (11); the locking piece (5) is provided with a first lock hole (51), and the outline of the first lock hole (51) is matched with the outline of the lock pin (61).

8. The foldable support frame according to claim 1, wherein a second pin shaft (43) for hinging the first platform (41) and the second platform (42) is arranged between the first platform (41) and the second platform (42), and a plurality of evenly distributed containing grooves (44) are arranged on the first platform (41) and the second platform (42).

9. The foldable support frame according to claim 1, characterized in that the tops of the front support foot rest (1) and the rear support foot rest (2) are provided with limit protrusions (7); the rear support foot rest (2) is provided with a hinge assembly (8) which is detachably connected with the rear support foot rest, and the hinge assembly (8) comprises a first hinge (81) and a second hinge (82) which are mutually hinged; the first hinge (81) is detachably connected with the rear supporting foot rest (2); the second hinge (82) is provided with a workbench (9) which is detachably connected with the second hinge.