Folding supporting frame assembly

Abstract

The utility model relates to the technical field of supporting frame assemblies, and discloses a folding supporting frame assembly which comprises a center connecting box, a pull handle is arranged at the upper end of the center connecting box, two connecting rods are fixed to the lower portion of one end of the pull handle, and the two connecting rods are embedded in the middle of the center connecting box. A handle pin shaft is arranged at the joint of the center connecting box and the pull handle, and a circular truncated cone is arranged at the lower end of the center connecting box. The whole supporting frame can be folded by lifting the pull handle, when folding is needed, the pull handle is pulled, due to the lever principle, the pull handle rotates around the handle pin shaft to drive the connecting rod to press downwards, at the moment, the pressing circular table moves downwards, the center limiting block moves downwards, at the moment, the second limiting clamping table is separated from the first limiting clamping table, and folding is achieved. Therefore, the second connecting sleeve of the main support can rotate around the central connecting box to drive the main support to rotate, and the handle is continuously lifted, so that the four connecting seats are close to one another, and the whole folding is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to support frame assembly technical field, especially in a kind of folding support frame assembly. BACKGROUND

[0002] Baby folding bed or baby safety bed fence and other baby products such as children's play bed, mainly for 0 to 6 years old baby design, aim to provide a safe, comfortable play and short rest space for them. It can be folded simultaneously, it is convenient to carry out, and the existing folding mode is usually satisfied with the folding of support frame to meet different folding needs.

[0003] The existing folding support frame has certain drawbacks when in use, first, in order to meet the overall strength of support frame, it is inconvenient to operate when folding, cannot be folded quickly, second, in order to meet the demand of quick folding, the overall strength of folding support frame when in use cannot be guaranteed, that is, the strength of support frame and quick folding cannot be guaranteed to be realized simultaneously, which brings certain influence to the use process of people, and therefore, we provide a kind of folding support frame assembly. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of folding support frame assembly, which can effectively solve the problem that the overall strength of folding support frame when in use cannot be guaranteed in order to meet the demand of quick folding, that is, the strength of support frame and quick folding cannot be guaranteed to be realized simultaneously.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0006] A kind of folding support frame assembly, including center connecting box, the upper end of the center connecting box is provided with pull handle, the lower part of one end of the pull handle is fixed with two connecting rods, and the two connecting rods are embedded in the middle position of center connecting box, handle pin shaft is arranged at the connecting place of center connecting box and pull handle, the lower end of the center connecting box is provided with circular table, the periphery of the circular table is fixedly connected with center limiting block, the lower end of the circular table is provided with limiting groove, limiting barrel is sleeved in the inside of the limiting groove, spring is arranged between the limiting barrel and the limiting groove, the four corners of the center connecting box are provided with main support second connecting sleeve, the one end of the main support second connecting sleeve is provided with first limiting card table, the one end of the center limiting block is provided with second limiting card table, and the second limiting card table is clamped with the first limiting card table.

[0007] Further, the four corners of the center connecting box are provided with mounting slot, mounting hole is horizontally penetrated and arranged on the mounting slot, shaft is inserted in the mounting hole, the main support second connecting sleeve is movably arranged on the shaft, and the one end of the main support second connecting sleeve is provided with main support.

[0008] Further, the bottom middle position of the center connecting box is fixed with a limiting rod, and the top middle position of the circular table is hollowed out and movably sleeved on the periphery of the limiting rod, the spring is sleeved on the outer ring of the limiting rod, and the two ends of the spring abut against the upper inner wall of the circular table and the lower inner wall of the limiting cylinder respectively, and the bottom end of the limiting cylinder is fixedly installed with a second supporting leg, and the limiting cylinder is installed and connected with the limiting rod in the center connecting box in the lower direction of the center shaft.

[0009] Further, the main support is provided with auxiliary support end connections, each of the two adjacent auxiliary support end connections is provided with an auxiliary support, and the two auxiliary supports are hingedly connected with an auxiliary support middle connection, and the lower end of the auxiliary support middle connection is fixedly installed with a first supporting leg.

[0010] Further, the end of the main support near the one end of the auxiliary support end connection is fixedly installed with a main support first connecting sleeve, and the main support first connecting sleeve is hingedly connected with a connecting seat.

[0011] Further, the auxiliary support end connection is provided with a first rotating pin and a second rotating pin, and the auxiliary support end connection and the main support are movably connected through the first rotating pin, and the auxiliary support end connection and the auxiliary support are movably connected through the second rotating pin.

[0012] Further, a through hole is formed in the center connecting box in the middle of the handle, a lock plate is inserted and installed in the through hole, the upper portion of the lock plate is located in the middle of the handle, a clamping head is fixedly installed at one end of the top of the lock plate, a lock head is fixed on one side of the inner ring of the handle, the lock head is clamped with the clamping head, an installation plate is arranged at the lower end of the center connecting box on one side of the through hole, a reset spring is arranged on the upper end of the installation plate and located on one side of the lock plate at the lower end of the center connecting box, a side plate is abutted on the other side of the reset spring, two sliding grooves are formed in the center connecting box on one side of the through hole, and two connecting rods are arranged between the installation plate and the lock plate and are inserted into the two sliding grooves.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The utility model discloses a handle, a connecting rod, a circular table, a center limiting block, a second limiting clamping table, a main support second connecting sleeve and a first limiting clamping table are arranged, and the whole support frame can be folded by pulling the handle, when folding, the handle is pulled, and owing to the principle of lever, rotating around the handle pin shaft will drive the connecting rod to press down, at this moment, the circular table is pressed to move downward, the center limiting block will move downward, the second limiting clamping table is separated from the first limiting clamping table, and therefore the main support second connecting sleeve will rotate around the center connecting box, and the main support is further driven to rotate, and continuing to pull the handle will make the four connecting seats close to each other, and the overall folding is realized.

[0015] 2. The utility model discloses a spring, a limiting cylinder and a second supporting leg are arranged at the lower part of the circular table limiting groove, a certain position space can be provided for the movement of the circular table, in the process of pulling the handle upwards, the connecting rod extrudes the circular table downwards, the circular table moves downwards within the elastic range of the spring at this time, so that the first limiting card table is separated from the control of the second limiting card table, and folding is realized, when opening is needed, the connecting seat is pulled to four angles, then the central connecting box is pressed downwards, until the first limiting card table is clamped on the second limiting card table, and opening operation is realized.

[0016] 3. The utility model discloses a supplementary support and supplementary support middle joint are arranged, the connection of the main support can be strengthened, and shaking in the use process is effectively avoided, and the supplementary support middle joint and the supplementary support end joint are arranged, the folding of the main support can be affected by the supplementary support.

[0017] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is one of the overall structure schematic diagram of the folding support frame assembly of the utility model.

[0019] Figure 2 It is the second overall structure schematic diagram of the folding support frame assembly of the utility model.

[0020] Figure 3 It is the enlarged view of the central connecting box of the folding support frame assembly of the utility model.

[0021] Figure 4 It is one of the partial explosion view of the folding support frame assembly of the utility model.

[0022] Figure 5 It is the enlarged view of the partial of the folding support frame assembly of the utility model.

[0023] Figure 6 It is the partial sectional view of the folding support frame assembly of the utility model.

[0024] Figure 7 It is the second partial explosion view of the folding support frame assembly of the utility model.

[0025] Figure 8 It is the plan view of the folding support frame assembly of the utility model.

[0026] Figure 9 It is the folding state schematic diagram of the folding support frame assembly of the utility model.

[0027] Figure 10This is one of the cross-sectional views of the central connecting box of a folding support frame assembly according to this utility model.

[0028] Figure 11 This is a second cross-sectional view of the central connecting box of a folding support frame assembly according to this utility model.

[0029] Figure 12 This is a partial exploded view of the central connecting box of a folding support frame assembly according to this utility model.

[0030] In the diagram: 1. Central connecting box; 2. Main support; 3. Auxiliary support end connector; 4. Auxiliary support; 5. Auxiliary support middle connector; 6. First support leg; 7. First connecting sleeve of main support; 8. Connecting seat; 9. Second support leg; 10. First rotating pin; 11. Second rotating pin; 12. Rotating shaft; 13. Mounting groove; 14. Mounting hole; 15. Second connecting sleeve of main support; 16. First limiting plate; 17. Frustum; 18. Limiting rod; 19. Central limiting block; 20. Second limiting plate; 21. Pull handle; 22. Connecting rod; 23. Locking plate; 24. Through hole; 25. Lock head; 26. Mounting plate; 27. Handle pin; 28. Return spring; 29. ​​Limiting cylinder; 30. Spring; 31. Limiting groove. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] like Figures 1-12 As shown, a folding support frame assembly includes a central connecting box 1. A handle 21 is provided at the upper end of the central connecting box 1. Two connecting rods 22 are fixed to the lower part of one end of the handle 21, and the two connecting rods 22 are embedded in the middle of the central connecting box 1. A handle pin 27 is provided at the connection between the central connecting box 1 and the handle 21. A frustum 17 is provided at the lower end of the central connecting box 1. A central limiting block 19 is fixedly connected to all four sides of the frustum 17. A limiting groove 31 is opened at the lower end of the frustum 17. A limiting cylinder 29 is sleeved inside the limiting groove 31. A spring 30 is provided between the limiting cylinder 29 and the limiting groove 31.

[0033] The four corners of the central connecting box 1 are provided with mounting grooves 13, and mounting holes 14 are opened horizontally through the mounting grooves 13. A rotating shaft 12 is inserted into the mounting hole 14, and a main support second connecting sleeve 15 is provided on the rotating shaft 12. A main support 2 is provided at one end of the main support second connecting sleeve 15.

[0034] It should be noted that this utility model employs the lever principle in its design, while simultaneously providing a certain range of motion for the central limiting block 19 on the frustum 17. The design is based on the premise that the second limiting plate 20 disengages from the first limiting plate 16. During the folding operation, that is, from...Figures 1 to 9 When the state is realized, first pull the handle 21, due to the principle of leverage, rotating around the handle pin 27 will drive the connecting rod 22 to press down, at this time, the circular table 17 is pressed down, the center limiting block 19 will move down, at this time, the second limiting block 20 is separated from the first limiting block 16, so the main support second connecting sleeve 15 will rotate around the center connecting box 1, and then drive the main support 2 to rotate, continue to pull the handle 21, so that the four connecting seats 8 are close to each other, and then the whole folding is realized.

[0035] One end of the main support second connecting sleeve 15 is provided with the first limiting block 16, one end of the center limiting block 19 is provided with the second limiting block 20, and the second limiting block 20 is clamped with the first limiting block 16.

[0036] In this embodiment, the second limiting block 20 is matched with the first limiting block 16 to realize the folding and opening of the folding support assembly, the second limiting block 20 is separated from the first limiting block 16 in the folding state, and the second limiting block 20 is locked in the opening state.

[0037] The bottom middle position of the center connecting box 1 is fixed with the limiting rod 18, the top middle position of the circular table 17 is hollowed out and movably sleeved on the outer periphery of the limiting rod 18, the spring 30 is sleeved on the outer ring of the limiting rod 18, and the two ends of the spring 30 abut against the upper inner wall of the circular table 17 and the lower inner wall of the limiting cylinder 29 respectively, the bottom end of the limiting cylinder 29 is fixedly installed with the second supporting leg 9, and the limiting cylinder 29 is installed and connected with the limiting rod 18 in the center axis direction of the center connecting box 1.

[0038] In the opening state, the spring 30 is reset to support the center limiting block 19, and the second limiting block 20 is locked to the first limiting block 16.

[0039] The main support 2 is provided with the auxiliary support end connection 3, the adjacent two auxiliary support end connections 3 are provided with the auxiliary support 4, and the auxiliary support 4 is hingedly connected with the auxiliary support middle connection 5, and the lower end of the auxiliary support middle connection 5 is fixedly installed with the first supporting leg 6.

[0040] The auxiliary support 4 and the auxiliary support middle connection 5 can strengthen the connection of the main support 2, effectively avoid shaking in use, and the auxiliary support middle connection 5 and the auxiliary support end connection 3 can strengthen the connection and prevent the auxiliary support 4 from affecting the folding of the main support 2.

[0041] The end of the main support 2 close to one end of the auxiliary support end connection 3 is fixedly installed with the main support first connecting sleeve 7, and the main support first connecting sleeve 7 is hingedly connected with the connecting seat 8.

[0042] The auxiliary support end 3 is provided with a first rotating pin 10 and a second rotating pin 11, and the auxiliary support end 3 is movably connected with the main support 2 through the first rotating pin 10, and the auxiliary support end 3 is movably connected with the auxiliary support 4 through the second rotating pin 11.

[0043] Specifically, in the open state, the lock plate 23 needs to be manually dialled to make the clamping head clamped on the lock head 25, and when folding, the lock plate 23 needs to be manually dialled again to make the clamping head disengaged from the lock head 25, so that the subsequent lifting operation of the pull handle 21 can be realized.

[0044] A through hole 24 is formed in the center connecting box 1 located in the middle of the pull handle 21, and a lock plate 23 is inserted and installed in the through hole 24. The upper part of the lock plate 23 is located in the middle of the pull handle 21, the clamping head is fixedly installed at the top end of the lock plate 23, the lock head 25 is fixed on one side of the inner ring of the pull handle 21, and the lock head 25 is clamped with the clamping head. The mounting plate 26 is arranged at the lower end of the center connecting box 1 located on one side of the through hole 24, the reset spring 28 is arranged at the upper end of the mounting plate 26, and the reset spring 28 is located on the side of the lock plate 23 at the lower end of the center connecting box 1. The other side of the reset spring 28 abuts against the side plate. Two sliding grooves are formed in the center connecting box 1 located on one side of the through hole 24. Two connecting rods are arranged between the mounting plate 26 and the lock plate 23, and the two connecting rods are inserted into the two sliding grooves.

[0045] It should be noted that the pull handle 21 cannot be pulled when the lock plate 23 is in the locked state, and the reset spring 28 is in the elongated state at this time. When folding is needed, the lock plate 23 is slid to the left, and the lock plate 23 moves in the through hole 24 at this time. The reset spring 28 is compressed by the side of the vertical rod, until the clamping head is separated from the lock head, so that the pull handle 21 can be lifted to realize the subsequent folding operation.

[0046] Working principle: the utility model discloses a folding support frame assembly, under the open state, need manual dialing lock rod 24, make lock head 25 clamping on the chuck 23, need folding, manual dialing lock rod 24 again, make lock head 25 separate chuck 23, can realize the lifting of pull handle 21, pull pull handle 21, due to lever principle, rotate around handle pin shaft 27 and drive connecting rod 22 to press down, at this time, press the circular platform 17 to move downward, center limit block 19 will move down, at this time, second limit card platform 20 separates first limit card platform 16, therefore, main support second connecting sleeve 15 will rotate around center connecting box 1, and then drive main support 2 to rotate, continue to pull pull handle 21, will make four connecting seats 8 close to each other, and then realize the folding of whole, through the lower part of the circular platform 17 limit groove 31 set spring 30, limit cylinder 29 and second support foot 9, can provide certain position space for the movement of circular platform 17, in the process of pulling pull handle 21 upward, connecting rod 22 extrudes circular platform 17 downward, at this time, circular platform 17 is in the elastic range of spring 30 and moves downward, so that first limit card platform 16 separates the control of second limit card platform 20, and then realizes folding, when needing to open, pull connecting seat 8 to four angles, then press pull handle 21 downward, due to the reset action of spring 30, until first limit card platform 16 is clamped on second limit card platform 20, realize the opening operation, set up auxiliary support 4 and auxiliary support middle joint 5, can strengthen the connection of main support 2, effectively avoid the shaking in the use process, and the setting of auxiliary support middle joint 5 and auxiliary support end joint 3 can strengthen the connection, and make auxiliary support 4 not affect the folding of main support 2.

[0047] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A foldable support stand assembly, characterized by: The utility model provides a center connecting box (1) is provided with the round table (17) at the lower end, and the four peripheries of the round table (17) are fixedly connected with the center limiting block (19), the lower end of the round table (17) is provided with the limiting groove (31), the inside of the limiting groove (31) is sleeved with the limiting cylinder (29), and the spring (30) is arranged between the limiting cylinder (29) and the limiting groove (31), the four corners of the center connecting box (1) are provided with the main support second connecting sleeve (15), one end of the main support second connecting sleeve (15) is provided with the first limiting card table (16), one end of the center limiting block (19) is provided with the second limiting card table (20), and the second limiting card table (20) is clamped with the first limiting card table (16).

2. A foldable support assembly according to claim 1, wherein: The four corners of the center connecting box (1) are provided with the mounting groove (13), the mounting hole (14) is horizontally penetrated on the mounting groove (13), the rotating shaft (12) is inserted into the mounting hole (14), the main support second connecting sleeve (15) is movably arranged on the rotating shaft (12), and one end of the main support second connecting sleeve (15) is provided with the main support (2).

3. The foldable support assembly of claim 1, wherein: The bottom of the center connecting box (1) is fixedly provided with the limiting rod (18) at the middle position, the top of the round table (17) is hollowed out and movably sleeved on the periphery of the limiting rod (18), the spring (30) is sleeved on the outer ring of the limiting rod (18), and the two ends of the spring (30) abut against the upper inner wall of the round table (17) and the lower inner wall of the limiting cylinder (29) respectively, the bottom end of the limiting cylinder (29) is fixedly provided with the second supporting leg (9), and the limiting cylinder (29) is connected with the limiting rod (18) in the middle and lower part of the center connecting box (1) in the center shaft direction.

4. The foldable support assembly of claim 2, wherein: The main support (2) is provided with the auxiliary support end (3), the adjacent two auxiliary support ends (3) are provided with the auxiliary support (4), and the two auxiliary supports (4) are hingedly connected with the auxiliary support middle (5), and the lower end of the auxiliary support middle (5) is fixedly provided with the first supporting leg (6).

5. A foldable support frame assembly according to claim 4, wherein: The end of the main support (2) close to the auxiliary support end (3) is fixedly provided with the main support first connecting sleeve (7), and the main support first connecting sleeve (7) is hingedly connected with the connecting seat (8).

6. A foldable support frame assembly according to claim 4, wherein: The auxiliary support end (3) is provided with the first rotating pin (10) and the second rotating pin (11), the auxiliary support end (3) and the main support (2) are movably connected through the first rotating pin (10), and the auxiliary support end (3) and the auxiliary support (4) are movably connected through the second rotating pin (11).

7. The foldable support assembly of claim 1, wherein: The center connecting box (1) is provided with a through hole (24) in the middle of the pull handle (21), the inside of the through hole (24) is provided with a lock plate (23) which is inserted and installed, the upper part of the lock plate (23) is in the middle of the pull handle (21), the top end of the lock plate (23) is fixedly provided with a clamping head, the inner ring side of the pull handle (21) is fixedly provided with a lock head (25) which is clamped with the clamping head, the lower end of the center connecting box (1) on one side of the through hole (24) is provided with a mounting plate (26), the upper end of the mounting plate (26) is provided with a reset spring (28), the reset spring (28) is located on one side of the lock plate (23) of the lower end of the center connecting box (1), the other side of the reset spring (28) is abutted with a side plate, two sliding grooves are formed on the center connecting box (1) on one side of the through hole (24), two connecting rods are arranged between the mounting plate (26) and the lock plate (23), and the two connecting rods are inserted into the two sliding grooves.

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