Lifting frame three-dimensional structure

Abstract

The utility model relates to a lifting frame three-dimensional structure which comprises a lower frame, a bed frame arranged above the lower frame, a double-X-shaped lifting support arranged between the lower frame and the bed frame and a driving piece used for driving the double-X-shaped lifting support to act to drive the bed frame to ascend and descend. Each lifting support comprises two lifting fixing pipes which are arranged in an inclined and crossed mode, the middles of the two lifting fixing pipes are hinged, the top end of each lifting fixing pipe is provided with a first lifting frame supporting pipe, and the bottom end of each lifting fixing pipe is provided with a second lifting frame supporting pipe. A first lifting frame supporting pipe and a second lifting frame supporting pipe on one side of the double-X-shaped lifting support are hinged to the bed frame and the lower frame respectively, and a first lifting frame supporting pipe and a second lifting frame supporting pipe on the other side of the double-X-shaped lifting support are movably connected with the bed frame and the lower frame through sliding block assemblies respectively. The swing of the frame can be reduced or eliminated during loading, and the stability of the whole structure in the operation process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bed frames, in particular to a lifting frame three-dimensional structure. Background Art

[0002] In order to improve comfort, existing nursing beds or home beds usually use a lifting frame to drive the entire bed to be raised and lowered in a horizontal state, so that the height of the bed frame can be freely adjusted.

[0003] Chinese utility model patent publication number CN221410854U discloses a lift bed comprising a bed frame and a lifting frame, the bed frame being mounted on the lifting frame. The lifting frame comprises a lower frame, a lifting assembly, and an upper frame. The lifting assembly comprises a first left lifting frame, a first right lifting frame, and a first actuator. The first left lifting frame is hinged at both ends to the upper and lower frames, respectively. The first right lifting frame is hinged at both ends to the upper and lower frames, respectively. One end of each of the first left lifting frame and the first right lifting frame is slidably connected to the upper or lower frame to which it is connected. The first left lifting frame and the first right lifting frame are hinged at their intermediate positions. The first actuator is hinged at both ends to the first left lifting frame and the first right lifting frame, respectively. The lift bed comprises a bed frame body mounted on the upper frame, and the bed frame body is pivoted by the first actuator. The first left lifting frame and the first right lifting frame rotate about only one hinged end, while the other end slides and rotates, thereby adjusting the height difference between the upper and lower frames. This allows the bed frame body mounted on the upper frame to be raised and lowered, facilitating care for the caregiver.

[0004] However, the above-mentioned lifting bed still has some defects: the first left lifting frame and the first right lifting frame are both composed of two lifting tubes arranged crosswise with each other, and the two lifting tubes are hingedly connected at the intersection to form an X-shaped scissors structure. Due to the long length of the lifting tubes, when the load is reduced or eliminated, the lifting tubes are prone to swing, resulting in poor stability of the entire lifting frame.

[0005] Therefore, the present invention proposes a lifting frame three-dimensional structure to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a lifting frame three-dimensional structure, which can reduce or eliminate the frame swing when loaded and ensure the stability of the entire structure during operation.

[0007] To solve the above technical problems, the technical solution of the present invention is: a lifting frame three-dimensional structure, the innovation of which is that it includes: a lower frame, a bed frame arranged above the lower frame, a double X-shaped lifting bracket arranged between the lower frame and the bed frame, and a driving member for driving the double X-shaped lifting bracket to move the bed frame up and down;

[0008] The double X-shaped lifting bracket includes two lifting brackets arranged in parallel, each lifting bracket includes two lifting fixed tubes arranged obliquely and crosswise, the two lifting fixed tubes are hinged in the middle, a first lifting frame support tube is provided at the top of each lifting fixed tube, the first lifting frame support tube is inclined from top to bottom away from the hinge of the lifting fixed tube, and a second lifting frame support tube is provided at the bottom of each lifting fixed tube, the second lifting frame support tube is inclined from top to bottom toward the hinge of the lifting fixed tube;

[0009] The first lifting frame support tube and the second lifting frame support tube on one side of the double X-shaped lifting frame are hinged to the bed frame and the lower frame respectively, and the first lifting frame support tube and the second lifting frame support tube on the other side are movably connected to the bed frame and the lower frame respectively through a slider assembly.

[0010] Furthermore, the first lifting frame support tube and the second lifting frame support tube are both arranged perpendicular to the connected lifting fixed tube.

[0011] Furthermore, a supporting triangle plate is provided between the first lifting frame support tube and the second lifting frame support tube and the connected lifting fixed tube, one side of the supporting triangle plate is connected to the lifting fixed tube, and the other side is connected to the corresponding first lifting frame support tube or the second lifting frame support tube.

[0012] Furthermore, the two lifting and fixing tubes of the lifting bracket are respectively a first lifting and fixing tube and a second lifting and fixing tube, the second lifting and fixing tube is located outside the first lifting and fixing tube, the middle parts of the first lifting and fixing tubes of the two lifting brackets are connected by a first transverse reinforcement rod, and the tops and bottoms of the second lifting and fixing tubes of the two lifting brackets are respectively connected by a second transverse reinforcement rod.

[0013] Furthermore, the slider assembly includes a slider track and a slider, the slider track is installed on the corresponding bed frame or lower frame, the slider is slidably installed in the slider track, and is rotatably connected to the corresponding first lifting frame support tube or second lifting frame support tube through a slider fixing rod.

[0014] Furthermore, the bed frame is provided with a slider brake assembly at each position of the slider assembly installed on the bed frame;

[0015] The slider brake assembly includes a screw and a brake nut. The bottom end of the screw is fixedly connected to the slider. A waist-shaped hole is opened on the slider track for the slide rod to pass through and move with the slider. The top end of the screw passes through the waist-shaped hole and is threadedly connected to the brake nut.

[0016] Furthermore, an internal thread groove matching the screw rod is formed on the bottom surface of the brake nut, and the top end of the screw rod is threadedly connected in the internal thread groove.

[0017] The advantages of the present invention are:

[0018] The utility model provides a first lifting frame support tube at the top end of each lifting and fixing tube, the first lifting frame support tube is inclined from top to bottom toward the hinge of the lifting and fixing tube, and a second lifting frame support tube is provided at the bottom end of each lifting and fixing tube, the second lifting frame support tube is inclined from top to bottom toward the hinge of the lifting and fixing tube. This structure can reduce or eliminate the swing of the lifting and fixing tube when loaded, thereby improving the stability of the entire structure during operation, making the bed frame move more smoothly and less prone to jamming, and the overall lifting more gentle and uniform in speed.

[0019] The first lifting frame support tube and the second lifting frame support tube of the utility model are both arranged perpendicular to the connected lifting fixing tube, which is conducive to simplifying the installation and connection process and improving the structural stability.

[0020] In the utility model, the supporting triangle plate is provided to strengthen the connection structural strength between each lifting frame support tube and the lifting fixed tube, thereby improving the structural strength of the lifting bracket.

[0021] The utility model provides three transverse reinforcing bars and limits the position of each transverse reinforcing bar, thereby achieving sufficient structural strength and excellent stability of the double X-shaped lifting bracket with a minimum number of transverse reinforcing bars.

[0022] The slider assembly of the utility model comprises a slider track and a slider, has a simple structure and low manufacturing cost.

[0023] The utility model provides a slider brake assembly, and by tightening the brake nut, the slider is driven by the screw to be tightly pressed against the side wall of the slider track, thereby realizing temporary braking of the slider, providing insurance for the supporting height of the bed frame. When the driving part fails and the brake fails, the state of the double X-shaped lifting bracket is maintained, thereby avoiding sudden brake failure of the driving part, causing the bed frame to drop suddenly, and posing a threat to the safety of the user. Moreover, when the slider brake assembly is in use, when the slider moves, the brake nut is loosened, and the screw moves synchronously with the slider. After the slider moves into place, the brake nut can be tightened, which is easy to operate. In addition, by passing the screw through the waist-shaped hole, the movement displacement of the slider can be limited without other limiting structures, thereby avoiding separation from the slider track.

[0024] In the utility model, an internal thread groove matching the screw is formed on the bottom surface of the brake nut, so that the top end of the screw is hidden in the internal thread groove of the brake nut. When the user uses the bed frame and rotates the brake nut, the user will not be scratched by the screw or feel uncomfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Figure 1It is a schematic diagram of the lifting frame three-dimensional structure of the utility model.

[0027] Figure 2 This is a cross-sectional view of the slider brake assembly of the present invention. DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0029] This embodiment provides a three-dimensional lifting frame structure, such as Figure 1 As shown, it includes a lower frame 1, a bed frame 3 arranged above the lower frame 1, a double X-shaped lifting bracket 2 arranged between the lower frame 1 and the bed frame 3, and a driving member for driving the double X-shaped lifting bracket to move and lift the bed frame. In this embodiment, the driving member adopts a linear motor, and the driving member is installed on the lower frame 1. The telescopic end of the driving member is connected to the driving double X-shaped lifting bracket 2 to push the double X-shaped lifting bracket to move, and the double X-shaped lifting bracket 2 drives the bed frame 3 to move up and down.

[0030] The double X-shaped lifting bracket 2 includes two lifting brackets arranged in parallel, and the two lifting brackets are respectively arranged on the left and right sides of the bed frame 3. Each lifting bracket includes two lifting fixed tubes arranged obliquely and crosswise. The two lifting fixed tubes are respectively a first lifting fixed tube 21 and a second lifting fixed tube 22. The second lifting fixed tube 22 is located on the outside of the first lifting fixed tube 21. The two lifting fixed tubes are hinged in the middle. A first lifting frame support tube 23 is provided at the top of each lifting fixed tube. The first lifting frame support tube 23 is inclined from top to bottom away from the hinge of the lifting fixed tube. A second lifting frame support tube 210 is provided at the bottom end of each lifting fixed tube. The second lifting frame support tube 210 is inclined from top to bottom toward the hinge of the lifting fixed tube. The first lifting frame support tube 23 and the second lifting frame support tube 210 are both perpendicular to the connected lifting fixed tubes, which is conducive to simplifying the installation and connection process while improving the structural stability. In order to improve the structural strength of the lifting bracket, a supporting triangle plate 24 is provided between the first lifting frame support tube 23 and the second lifting frame support tube 210 and the connected lifting fixed tube. One side of the supporting triangle plate 24 is connected to the lifting fixed tube, and the other side is connected to the corresponding first lifting frame support tube or the second lifting frame support tube.

[0031] To enhance the structural stability of the double X-shaped lifting bracket 2, the middle portions of the first lifting fixed tubes of the two lifting brackets are connected by a first transverse reinforcement rod 28, and the tops and bottoms of the second lifting fixed tubes of the two lifting brackets are connected by a second transverse reinforcement rod 29.

[0032] The first lifting frame support tube and the second lifting frame support tube on one side of the double X-shaped lifting bracket 2 are hinged to the bed frame 3 and the lower frame 1 respectively, and the first lifting frame support tube and the second lifting frame support tube on the other side are movably connected to the bed frame 3 and the lower frame 1 respectively through a slider assembly.

[0033] The slider assembly includes a slider rail 25 and a slider 26. The slider rail 25 is installed on the corresponding bed frame 3 or the lower frame 1. The slider 26 is slidably installed in the slider rail 25 and is rotatably connected to the corresponding first lifting frame support tube or the second lifting frame support tube through the slider fixing rod 27. Each of the first lifting frame support tube and the second lifting frame support tube is provided with a through hole for the slider fixing rod 27 to pass through. One end of the slider fixing rod 27 is fixedly connected to the slider 26, and the other end is rotatably arranged in the through hole of the corresponding first lifting frame support tube or the second lifting frame support tube.

[0034] In this embodiment, in order to prevent the sudden braking failure of the driving member when a fault occurs and the braking fails, causing the bed frame to drop suddenly and posing a threat to the safety of the user, the bed frame 3 is provided with a slider brake assembly at each slider assembly installed on the bed frame 3; Figure 2 As shown, the slider brake assembly includes a screw 27 and a brake nut 28. The bottom end of the screw 27 is fixedly connected to the slider 26. The slider track 25 is provided with a waist-shaped hole 251 for the slide 27 to pass through and move with the slider. The top end of the screw 27 passes through the waist-shaped hole 251 and is threadedly connected to the brake nut 28. By tightening the brake nut 28, the slider 26 is pressed tightly against the side wall of the slider track 25 via the screw 27, thereby temporarily braking the slider 26. When the slider brake assembly is in use, when the slider moves, the brake nut 28 is loosened, and the screw 27 moves synchronously with the slider 26. After the slider 26 is moved into place, the brake nut 28 is tightened, which is convenient to operate. In addition, by inserting the screw 27 into the waist-shaped hole 251, the movement of the slider can be limited without other limiting structures, preventing it from leaving the slider track. An internal thread groove matching the screw is opened on the bottom surface of the braking nut 28, and the top end of the screw 27 is threadedly connected to the internal thread groove, so that the top end of the screw is hidden in the internal thread groove of the braking nut 28. When the user uses the bed frame and turns the braking nut 28, the user will not be scratched or feel uncomfortable by the screw 27. Compared with the conventional braking nut that is directly mounted on the screw so that the top end of the screw leaks out, the internal thread groove matching the screw is opened on the bottom surface of the braking nut, and this structure is safer to use.

[0035] The utility model designs lifting frame support tubes at both ends of each lifting fixed tube, which can reduce or eliminate the swing of the lifting fixed tube when loaded, thereby improving the stability of the entire structural operation process, making the bed frame move more smoothly and less prone to jamming, and the overall lifting is smoother and more uniform in speed.

[0036] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A lifting frame three-dimensional structure, characterized by: It includes a lower frame, a bed frame arranged above the lower frame, a double X-shaped lifting bracket arranged between the lower frame and the bed frame, and a driving member for driving the double X-shaped lifting bracket to move the bed frame up and down; The double X-shaped lifting bracket includes two lifting brackets arranged in parallel, each lifting bracket includes two lifting fixed tubes arranged obliquely and crosswise, the two lifting fixed tubes are hinged in the middle, a first lifting frame support tube is provided at the top of each lifting fixed tube, the first lifting frame support tube is inclined from top to bottom away from the hinge of the lifting fixed tube, and a second lifting frame support tube is provided at the bottom of each lifting fixed tube, the second lifting frame support tube is inclined from top to bottom toward the hinge of the lifting fixed tube; The first lifting frame support tube and the second lifting frame support tube on one side of the double X-shaped lifting frame are hinged to the bed frame and the lower frame respectively, and the first lifting frame support tube and the second lifting frame support tube on the other side are movably connected to the bed frame and the lower frame respectively through a slider assembly.

2. The lifting frame three-dimensional structure according to claim 1, characterized in that: The first lifting frame support tube and the second lifting frame support tube are both arranged perpendicular to the connected lifting fixed tube.

3. The lifting frame three-dimensional structure according to claim 2, characterized in that: A supporting triangle is provided between the first lifting frame support tube and the second lifting frame support tube and the connected lifting fixed tube. One side of the supporting triangle is connected to the lifting fixed tube, and the other side is connected to the corresponding first lifting frame support tube or the second lifting frame support tube.

4. The lifting frame three-dimensional structure according to claim 1, characterized in that: The two lifting and fixing tubes of the lifting bracket are respectively a first lifting and fixing tube and a second lifting and fixing tube, the second lifting and fixing tube is located outside the first lifting and fixing tube, the middle parts of the first lifting and fixing tubes of the two lifting brackets are connected by a first transverse reinforcing rod, and the tops and bottoms of the second lifting and fixing tubes of the two lifting brackets are respectively connected by a second transverse reinforcing rod.

5. The lifting frame three-dimensional structure according to claim 1, characterized in that: The slider assembly includes a slider track and a slider. The slider track is installed on the corresponding bed frame or lower frame. The slider is slidably installed in the slider track and is rotatably connected to the corresponding first lifting frame support tube or second lifting frame support tube through a slider fixing rod.

6. The three-dimensional lifting frame structure according to claim 5, characterized in that: The bed frame is provided with a slider brake assembly at each position of the slider assembly installed on the bed frame; The slider brake assembly includes a screw and a brake nut. The bottom end of the screw is fixedly connected to the slider. A waist-shaped hole is opened on the slider track for the slide rod to pass through and move with the slider. The top end of the screw passes through the waist-shaped hole and is threadedly connected to the brake nut.

7. The lifting frame three-dimensional structure according to claim 6, characterized in that: An internal thread groove matching the screw rod is formed on the bottom surface of the brake nut, and the top end of the screw rod is threadedly connected in the internal thread groove.

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