Height-adjustable furniture buffering foot and bed adopting furniture buffering foot

Abstract

The utility model discloses a furniture buffer foot with adjustable height, which comprises a cylinder body and an oil cylinder arranged in the cylinder body, the oil cylinder comprises an inner oil cylinder, an outer oil cylinder arranged on the outer side of the inner oil cylinder, an oil discharge hole arranged above the side wall of the inner oil cylinder and communicated with the outer oil cylinder, and an oil return hole arranged below the inner side wall of the inner oil cylinder, the oil overflow hole is formed in the lower portion of the side wall of the outer oil cylinder, the oil return hole is communicated with the oil overflow hole in the side wall of the inner oil cylinder through an oil return channel, the limiting ring is fixed to the bottom end of the oil cylinder in a sealed mode, the reset spring is connected into the inner oil cylinder in a sealed mode, and the piston is arranged at the bottom end of the reset spring, located above the limiting ring and capable of sliding along the inner wall of the inner oil cylinder. The supporting assembly is arranged at the bottom end of the piston and penetrates through the center of the limiting ring, the height of the furniture can be adjusted, the buffering function is achieved, the comfortable experience of a user is improved, instant stress of the furniture is reduced, and the service life of the furniture is prolonged. The utility model further discloses a bed adopting the furniture buffering foot, so that the furniture foot has buffering and damping effects.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a furniture buffer foot with adjustable height and a bed using the furniture buffer foot. Background Art

[0002] Furniture legs usually refer to the bottom part of the furniture that supports the furniture and contacts the ground. Common materials include wood, metal, plastic, etc. The design of furniture legs can not only play a role in supporting stability, but also play a role in beautifying the appearance of the furniture.

[0003] The existing common furniture legs have the following defects: 1. Most of them are fixed without cushioning and cannot be adjusted in height. When the ground is uneven, you can only put something under the furniture feet, which is not flexible enough in use and affects the appearance; 2. Some furniture legs with adjustable height can adapt to different ground surfaces or adjust the height of furniture without putting something under the furniture feet, but these furniture feet with adjustable height do not have a cushioning function, resulting in many furniture being subjected to great instantaneous pressure during use. Once the instantaneous pressure is too large, it is easy to cause the structure of the furniture to break and be damaged, affecting the service life of the furniture. Utility Model Content

[0004] The purpose of the utility model is to overcome the above defects in the prior art and provide a furniture cushioning foot with adjustable height and a bed using the furniture cushioning foot, so as to solve the problem that the existing furniture feet have no cushioning and are not easy to adjust the height.

[0005] To achieve the above-mentioned objectives, in a first aspect, the utility model provides a furniture buffer foot with adjustable height, comprising a cylinder body, a cylinder installed in the cylinder body, the cylinder comprising an inner cylinder and an outer cylinder installed outside the inner cylinder, an oil discharge hole opened above the side wall of the inner cylinder and connected to the outer cylinder, an oil return hole opened below the inner side wall of the inner cylinder, an oil overflow hole opened below the side wall of the outer cylinder, the oil return hole and the oil overflow hole are connected with each other through an oil return channel in the side wall of the inner cylinder, a limiting ring sealed and fixed at the bottom end of the cylinder, a return spring sealed and connected to the inner cylinder, the top of the return spring is fixedly connected to the top of the inner cylinder, a piston installed at the bottom end of the return spring and located above the limiting ring and can slide along the inner wall of the inner cylinder, and a supporting component installed at the bottom end of the piston and passing through the center of the limiting ring.

[0006] Preferably, at least two oil discharge holes are opened above the side wall of the inner cylinder and connected with the outer cylinder, at least two oil return holes are opened below the inner side wall of the inner cylinder, and at least two oil overflow holes are opened below the side wall of the outer cylinder, and at least two of the oil return holes are connected with at least two oil overflow holes in the side wall of the inner cylinder through an oil return channel.

[0007] Preferably, it further comprises a front cover assembly sleeved on the bottom end of the cylinder body for sealing the cylinder body, and the support assembly passes through the center of the front cover assembly.

[0008] Preferably, the front cover assembly includes a self-lubricating bearing, which is located between the front cover assembly and the support assembly, and the front cover assembly is connected to the support assembly via the self-lubricating bearing.

[0009] Preferably, the support assembly includes a piston rod mounted at the bottom end of the piston and a support plate mounted at the bottom end of the piston rod, and the support plate is located outside the cylinder body.

[0010] Preferably, an oil seal is connected between the limiting ring and the front cover assembly, and the supporting assembly passes through the center of the oil seal.

[0011] Preferably, the oil filling hole is provided at the top of the cylinder body and above the inner oil cylinder, and the oil filling hole is provided with a sealing screw.

[0012] Preferably, a screw is sleeved on the top end of the cylinder body.

[0013] In a second aspect, an embodiment of the present application also provides a bed using the furniture buffer foot, including a triangular code fixedly mounted on the bed, and also including an adjustable height furniture buffer foot as described in the first aspect, wherein the adjustable height furniture buffer foot is fixedly connected to the triangular code by a screw and is located at the bottom of the bed.

[0014] Preferably, the number of the height-adjustable furniture buffer feet is four, and the four height-adjustable furniture buffer feet are respectively located at the four corners of the bottom of the bed.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model provides a height-adjustable furniture buffer foot and a bed using the furniture buffer foot. Under the action of external force, the support assembly drives the piston to squeeze the return spring, so that the hydraulic oil in the inner cylinder is discharged to the oil drain hole to reduce the instantaneous impact force of the return spring being squeezed. The height-adjustable furniture buffer foot can adjust the height of the furniture and has a buffering function to improve the user's comfort experience, reduce the instantaneous force on the furniture, and increase its service life.

[0017] 2. The retractable reset spring is convenient for adjusting the height of the furniture buffer foot. When the reset spring is reset to push the piston back to the starting point, the hydraulic oil in the outer cylinder flows back to the inner cylinder through the oil return channel to wait for the next operation. The hydraulic oil flows back to the inner cylinder through the oil drain hole and the oil return hole in turn, waiting for the next operation, so that the furniture buffer foot can be recycled and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a cross-sectional view of a furniture cushioning foot with adjustable height provided in Example 1 of the utility model;

[0020] Figure 2 yes Figure 1 A partial enlarged view of point A;

[0021] Figure 3 It is a three-dimensional diagram of a furniture cushioning foot with adjustable height provided in Example 1 of the utility model;

[0022] Figure 4 It is a schematic diagram of a bed using the furniture cushioning legs provided in Example 2 of the utility model.

[0023] Included in the figure are:

[0024] 1. Cylinder body; 11. Oil cylinder; 111. Inner oil cylinder; 112. Outer oil cylinder; 113. Oil drain hole; 114. Oil return hole; 115. Oil overflow hole; 116. Oil return channel; 117. Reset spring; 12. Limit ring; 13. Piston; 14. Front cover assembly; 141. Self-lubricating bearing; 15. Oil seal; 16. Oil filling hole; 2. Support assembly; 21. Piston rod; 22. Support plate; 3. Screw; 4. Bed; 5. Triangle code; 6. Sealing screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is one embodiment of the utility model, not all embodiments of the utility model. Based on the embodiment of the utility model, all other embodiments of the utility model obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figures 1 to 3The embodiment of the utility model provides a height-adjustable furniture buffer foot, comprising a cylinder body 1, an oil cylinder 11 installed in the cylinder body 1, an oil filling hole 16 opened at the top of the cylinder body 1 and located above the inner cylinder 111, the oil filling hole 16 is equipped with a sealing screw 6 for sealing the oil filling hole 16 so that the hydraulic oil does not leak out of the cylinder body 1, and the user injects hydraulic oil into the through hole on the inner cylinder 111 through the oil filling hole 16, the oil filling hole 16 and the through hole are sealed and connected by screws, and the inner cylinder 111 is filled with hydraulic oil. The oil cylinder 11 comprises an inner oil cylinder 111 and an outer oil cylinder 112 installed outside the inner oil cylinder 111, an oil discharge hole 113 opened above the side wall of the inner oil cylinder 111 and connected to the outer oil cylinder 112, an oil return hole 114 opened below the inner side wall of the inner oil cylinder 111, and an oil overflow hole 115 opened below the side wall of the outer oil cylinder 112. The oil return hole 114 and the oil overflow hole 115 are connected through an oil return channel 116 in the side wall of the inner oil cylinder 111. The limit ring 12 is sealed and fixed at the bottom end of the oil cylinder 11, and the limit ring 12 is fixedly installed in the cylinder body 1 and sealed and connected to the inner oil cylinder The return spring 117 in 111 can restore its original shape without being affected by external force. The top of the return spring 117 is fixedly connected to the top of the inner cylinder 111. The piston 13 is installed at the bottom of the return spring 117 and is located above the limit ring 12 and can slide along the inner wall of the inner cylinder 111. The oil discharge hole 113 is located above the piston 13. The piston 13 can squeeze the return spring 117 under the action of external force. The support component 2 is installed at the bottom of the piston 13 and passes through the center of the limit ring 12. The support component 2 will drive the piston 13 to move when it is impacted by external force.

[0028] Furthermore, at least two oil drain holes 113 are provided above the side wall of the inner cylinder 111 and connected to the outer cylinder 112. More oil drain holes 113 make it easier for the hydraulic oil in the inner cylinder 111 to be discharged into the outer cylinder 112, so that the piston 13 squeezes the return spring 117 in the inner cylinder 111 with less pressure, and the damping force of the height-adjustable furniture buffer foot will be correspondingly reduced to provide users with rich perception. At least two oil return holes 114 are provided below the inner side wall of the inner cylinder 111, and at least two oil overflow holes 115 are provided below the side wall of the outer cylinder 112. The at least two oil return holes 114 and the at least two oil overflow holes 115 are connected in the side wall of the inner cylinder 111 through the oil return channel 116. More oil return holes 114, oil overflow holes 115 and oil return channels 116 make the hydraulic oil in the outer cylinder 112 flow into the inner cylinder 111 faster.

[0029] See also Figure 1A height-adjustable furniture cushioning foot also includes a front cover assembly 14 sleeved at the bottom of the cylinder body 1 for sealing the cylinder body 1, and the support assembly 2 passes through the center of the front cover assembly 14. The front cover assembly 14 includes a self-lubricating bearing 141, which is located between the front cover assembly 14 and the support assembly 2. The front cover assembly 14 is connected to the support assembly 2 through the self-lubricating bearing 141. The self-lubricating bearing 141 has the characteristics of smoothness and wear resistance, which better connects the front cover assembly 14 with the support assembly 2. An oil seal 15 is connected between the limit ring 12 and the front cover assembly 14, and the support assembly 2 passes through the center of the oil seal 15. The support assembly 2 includes a piston rod 21 installed at the bottom end of the piston 13 and a support plate 22 installed at the bottom end of the piston rod 21. The piston rod 21 passes through the limit ring 12, the oil seal 15 and the center of the front cover assembly 14 in sequence from the cylinder body 1 to the support plate 22. One end of the piston rod 21 is connected to the support plate 22, and the support plate 22 is located outside the cylinder body 1 for contacting the ground. A screw rod 3 is sleeved on the top of the cylinder body 1 for connecting the furniture cushioning foot with adjustable height to the furniture.

[0030] The working principle of the utility model embodiment 1 is:

[0031] The screw rod 3 connects the height-adjustable furniture buffer foot to the bottom of the furniture, and the support plate 22 contacts the ground. When the furniture is subjected to external force, the height-adjustable furniture buffer foot is also subjected to external force. The support plate 22 and the piston rod 21 drive the piston 13 to squeeze the return spring 117 in the inner cylinder 111, so that the hydraulic oil in the inner cylinder 111 is discharged into the outer cylinder 112 at the oil drain hole 113. The outer cylinder 112 is used to store hydraulic oil, so that the pressure of the return spring 117 being squeezed increases, thereby increasing the deformation time of the return spring 117. The damping force of the height-adjustable furniture buffer foot will increase accordingly, thereby reducing the instantaneous force on the furniture, increasing the service life of the furniture, and providing a comfortable user experience. When the height-adjustable furniture cushioning foot is not subjected to external force, the reset spring 117 resets and pushes the piston 13 back to the starting point, and the hydraulic oil in the outer cylinder 112 flows into the oil return channel 116 to the oil return hole 114 through the oil overflow hole 115, and the hydraulic oil returns to the inner cylinder 111 to wait for the next work. The hydraulic oil flows back to the inner cylinder 111 through the oil discharge hole 113 and the oil return hole 114 in turn, waiting for the next work.

[0032] It should be noted that the oil return hole 114 is always located above the piston 13 . When the piston 13 moves toward the top of the cylinder 11 , the bottom of the piston 13 is not higher than the oil return hole 114 , so as to prevent the hydraulic oil on the oil return hole 114 from leaking out of the inner cylinder 111 .

[0033] Example 2

[0034] See also Figure 4The embodiment of the present application also provides a bed with the furniture buffer foot, including a triangular bracket 5 fixedly mounted on the bed 4, the triangular bracket 5 being fixed to the bed 4 by screws, and also including the above-mentioned furniture buffer foot with adjustable height, the furniture buffer foot with adjustable height being fixedly connected to the triangular bracket 5 by a screw 3 and being located at the bottom of the bed 4. The number of the furniture buffer foot with adjustable height is four, and the four furniture buffer feet with adjustable height are respectively located at the four corners of the bottom of the bed 4 for supporting the bed 4. Of course, the sofa or other furniture can also adopt the furniture buffer foot with adjustable height, so that the furniture foot of the sofa or other furniture has a buffering and shock-absorbing effect.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any changes, modifications, substitutions, combinations, and simplifications made within the spirit and principles of the present invention should be equivalent replacement methods and should be included in the protection scope of the present invention.

Claims

1. A height-adjustable furniture cushioning foot, characterized in that: The invention comprises a cylinder body (1), an oil cylinder (11) installed in the cylinder body (1), the oil cylinder (11) comprising an inner oil cylinder (111) and an outer oil cylinder (112) installed outside the inner oil cylinder (111), an oil discharge hole (113) opened above the side wall of the inner oil cylinder (111) and connected to the outer oil cylinder (112), an oil return hole (114) opened below the inner side wall of the inner oil cylinder (111), and an oil overflow hole (115) opened below the side wall of the outer oil cylinder (112), the oil return hole (114) and the oil overflow hole (115) being arranged on the inner oil cylinder. The inner wall of the inner cylinder (111) is connected via an oil return passage (116); a limit ring (12) is sealed and fixed at the bottom end of the oil cylinder (11); a return spring (117) is sealed and connected to the inner cylinder (111); the top end of the return spring (117) is fixedly connected to the top end of the inner cylinder (111); a piston (13) is mounted at the bottom end of the return spring (117) and is located above the limit ring (12) and can slide along the inner wall of the inner cylinder (111); and a support assembly (2) is mounted at the bottom end of the piston (13) and passes through the center of the limit ring (12).

2. The height-adjustable furniture cushioning foot according to claim 1, characterized in that: At least two oil discharge holes (113) are provided above the side wall of the inner oil cylinder (111) and are in communication with the outer oil cylinder (112); at least two oil return holes (114) are provided below the inner side wall of the inner oil cylinder (111); at least two oil overflow holes (115) are provided below the side wall of the outer oil cylinder (112); and at least two of the oil return holes (114) and at least two of the oil overflow holes (115) are in communication with each other in the side wall of the inner oil cylinder (111) via an oil return channel (116).

3. The height-adjustable furniture cushioning foot according to claim 1, characterized in that: It also includes a front cover assembly (14) sleeved on the bottom end of the cylinder body (1) for sealing the cylinder body (1), and the support assembly (2) passes through the center of the front cover assembly (14).

4. The height-adjustable furniture cushioning foot according to claim 3, characterized in that: The front cover assembly (14) comprises a self-lubricating bearing (141), wherein the self-lubricating bearing (141) is located between the front cover assembly (14) and the support assembly (2), and the front cover assembly (14) is connected to the support assembly (2) via the self-lubricating bearing (141).

5. The height-adjustable furniture cushioning foot according to claim 1, characterized in that: The support assembly (2) comprises a piston rod (21) mounted on the bottom end of the piston (13) and a support plate (22) mounted on the bottom end of the piston rod (21); the support plate (22) is located outside the cylinder body (1).

6. The height-adjustable furniture cushioning foot according to claim 3, characterized in that: An oil seal (15) is connected between the limiting ring (12) and the front cover assembly (14), and the support assembly (2) passes through the center of the oil seal (15).

7. The height-adjustable furniture cushioning foot according to claim 1, characterized in that: It also includes an oil filling hole (16) opened at the top of the cylinder body (1) and located above the inner oil cylinder (111), and the oil filling hole (16) is equipped with a sealing screw (6).

8. The height-adjustable furniture cushioning foot according to claim 1, characterized in that: A screw rod (3) is sleeved on the top end of the cylinder body (1).

9. A bed using the furniture cushioning foot, comprising a triangular code (5) fixedly mounted on the bed (4), characterized in that: It also includes a height-adjustable furniture buffer foot as described in any one of claims 1 to 8, wherein the height-adjustable furniture buffer foot is fixedly connected to the triangular code (5) via a screw (3) and is located at the bottom of the bed (4).

10. A bed using the furniture cushioning foot according to claim 9, characterized in that: The number of the height-adjustable furniture buffer feet is four, and the four height-adjustable furniture buffer feet are respectively located at four corners of the bottom of the bed (4).

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