Lifting device and lifting cabinet

Abstract

The present invention proposes a lifting device and a lifting cabinet, wherein the lifting device is used to adjust the height of the cabinet; the lifting device comprises: an upper base, a lower base, an adjusting rod, a first connecting rod, a second connecting rod, and two pairs of support arm groups consisting of an upper support arm and a lower support arm; when the adjusting rod rotates, the first connecting rod and the second connecting rod move in opposite directions; the first connecting rod and the second connecting rod drive the rotating joint to rotate, so that the angle between the upper support arm and the lower support arm changes, and the height of the upper base from the lower base changes, thereby realizing the adjustment of the cabinet height. The lifting device can be used to adjust the height of the cabinet to facilitate people of different heights to use the cabinet; and the lifting device adopts a manually operated mechanical structure, which is simple to operate and compact and reliable in structure.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture, and in particular to a lifting device and a lifting cabinet. Background Art

[0002] Cabinets are very common in our daily life, such as stoves, cooker cabinets, sink cabinets or bar counters. Generally speaking, the height of the cabinet is fixed. Users of different heights have different requirements for the height of the cabinet, and a cabinet with a fixed height is difficult to meet the needs of different users. For example, a stove may have users of various heights, but ordinary stoves cannot be adjusted in height. If the user's height does not match the height of the cabinet, it will be very inconvenient to use. Summary of the invention

[0003] The technical problem to be solved by the present invention is that, in view of the above-mentioned deficiencies in the prior art, a lifting device is proposed, which can be used to adjust the height of a cabinet to facilitate people of different heights to use the cabinet; and the lifting device adopts a manually operated mechanical structure, which is simple to operate and has a compact and reliable structure.

[0004] The lifting device is used to adjust the height of the cabinet; the lifting device includes: an upper base, a lower base, an adjusting rod, a first connecting rod, a second connecting rod, and two pairs of support arm groups consisting of an upper support arm and a lower support arm; wherein, one end of the upper support arm is rotatably connected to the upper base, one end of the lower support arm is rotatably connected to the lower base, and the other end of the upper support arm is rotatably connected to the other end of the lower support arm; a pair of support arm groups are respectively arranged on both sides of the lifting device; each pair of support arm groups includes a first support arm group located at the front side and a second support arm group located at the rear side; the first support arm group and the second support arm group are symmetrically arranged front to back; the first support arm groups on both sides have the same front and back positions; the second support arm groups on both sides have the same front and back positions; the upper support arm and the lower support arm of each support arm group have a rotating joint at the connection; the rotating joints of the first support arm groups on both sides are respectively connected to the two ends of the first connecting rod; the rotating joints of the second support arm groups on both sides are respectively connected to the two ends of the second connecting rod;

[0005] The adjusting rod is arranged along the front-to-back direction, and threads with opposite rotation directions are arranged on both sides. The threads on one side cooperate with the screw holes opened on the first connecting rod, and the threads on the other side cooperate with the screw holes opened on the second connecting rod. The adjusting rod rotates to make the first connecting rod and the second connecting rod move in opposite directions, so that the angle between the upper support arm and the lower support arm changes, so as to change the height of the upper base from the lower base.

[0006] Furthermore, a baffle is formed on the front side of the lower base facing upward; an oblong hole is formed on the baffle in the up-down direction; and the position of the oblong hole corresponds to the position of the screw hole on the first connecting rod.

[0007] Furthermore, the lifting device also has a crank handle for rotating the adjustment rod;

[0008] The adjusting rod passes through the screw hole on the first connecting rod, and a connecting portion with a polygonal cross-section is formed at the end; one end of the crank handle is processed with a polygonal inner hole adapted to the connecting portion; the crank handle passes through the oblong hole so that the polygonal inner hole is sleeved on the connecting portion; the other end of the crank handle is the operating portion.

[0009] Furthermore, the oblong hole is covered with a removable cover.

[0010] Furthermore, the lifting device also has a scissor mechanism on both sides formed by a first scissor arm and a second scissor arm cross-rotatingly connected; one end of the first scissor arm is rotatably connected to the connection between the upper support arm of the first support arm group and the upper base; one end of the second scissor arm is rotatably connected to the connection between the upper support arm of the second support arm group and the upper base; the other ends of the two scissor arms are abutted against the lower base through a roller.

[0011] On the other hand, the present invention further proposes a lifting cabinet, which comprises the aforementioned lifting device and a cabinet; the lifting device is used to adjust the height of the cabinet.

[0012] Furthermore, the lifting device is arranged at the bottom of the cabinet.

[0013] Furthermore, the cabinet includes a cabinet body and an upper platform above the cabinet body; the lifting device is embedded between the cabinet body and the upper platform; the lower base is in conflict with the cabinet body; and the upper base is in conflict with the upper platform.

[0014] Furthermore, a support member is provided on both sides of the cabinet; and the support member is against the lower base of the lifting device.

[0015] Furthermore, a supporting foot is provided at each of the four corners of the bottom end of the cabinet.

[0016] The present invention proposes a lifting device and a lifting cabinet, the lifting device is used to adjust the height of the cabinet; the lifting device includes: an upper base, a lower base, an adjusting rod, a first connecting rod, a second connecting rod, and two pairs of support arm groups consisting of an upper support arm and a lower support arm; when the adjusting rod rotates, the first connecting rod and the second connecting rod move in opposite directions; the first connecting rod and the second connecting rod drive the rotating joint to rotate, so that the angle between the upper support arm and the lower support arm changes, and the height of the upper base from the lower base changes, so as to adjust the height of the cabinet. The lifting device can be used to adjust the height of the cabinet to facilitate people of different heights to use the cabinet; and the lifting device adopts a manually operated mechanical structure, which is simple to operate and compact and reliable in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic structural diagram of a lifting device shown in an exemplary embodiment.

[0018] Figure 2 It is another schematic structural diagram of a lifting device shown in an exemplary embodiment.

[0019] Figure 3 yes Figure 2 Enlarged view at A.

[0020] Figure 4 It is a schematic diagram of the structure of a crank handle shown in an exemplary embodiment.

[0021] Figure 5 It is a schematic structural diagram of a lifting cabinet shown in an exemplary embodiment.

[0022] Figure 6 It is another structural schematic diagram of a lifting cabinet shown in an exemplary embodiment.

[0023] Figure 7 It is another structural schematic diagram of a lifting cabinet shown in an exemplary embodiment. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present invention and in conjunction with the accompanying drawings, the technical solution of the present invention is further described, but the present invention is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for clarity and brevity, the description of known functions and structures is omitted.

[0025] The embodiment of the present invention shows a lifting device and a lifting cabinet. The lifting device can be used to adjust the height of the cabinet to facilitate people of different heights to use the cabinet. The lifting device adopts a manually operated mechanical structure, which is easy to operate and has a compact and reliable structure.

[0026] The lifting device and the lifting cabinet shown in the embodiments of the present invention are further explained and illustrated below in conjunction with the accompanying drawings.

[0027] The lifting device 2 is used to adjust the height of the cabinet; the cabinet can be a stove, a stove cabinet, a sink cabinet or a bar, and the specific type is not limited.

[0028] refer to Figure 1 The lifting device 2 includes: an upper base 21, a lower base 22, an adjusting rod 23, a first connecting rod 24, a second connecting rod 25, and two pairs of support arm groups 26 consisting of an upper support arm 261 and a lower support arm 262;

[0029] One end of the upper support arm 261 is rotatably connected to the upper base 21, one end of the lower support arm 262 is rotatably connected to the lower base 22, and the other end of the upper support arm 261 is rotatably connected to the other end of the lower support arm 262; a pair of support arm groups 26 are respectively arranged on both sides of the lifting device 2; each pair of support arm groups 26 includes a first support arm group 26a located on the front side and a second support arm group 26b located on the rear side; the first support arm group 26a and the second support arm group 26b are symmetrically arranged front to back; the first support arm groups 26a on both sides have the same front and back positions; the second support arm groups 26b on both sides have the same front and back positions; the upper support arm 261 and the lower support arm 262 of each support arm group 26 have a rotating joint 263 at the connection; the rotating joints 263 of the first support arm groups 26a on both sides are respectively connected to the two ends of the first connecting rod 24; the rotating joints 263 of the second support arm groups 26b on both sides are respectively connected to the two ends of the second connecting rod 25.

[0030] The adjusting rod 23 is arranged along the front-to-back direction, and has threads with opposite rotation directions on both sides. The threads on one side cooperate with the screw holes opened on the first connecting rod 24, and the threads on the other side cooperate with the screw holes opened on the second connecting rod 25. The adjusting rod 23 rotates to make the first connecting rod 24 and the second connecting rod 25 move in opposite directions, so that the angle between the upper support arm 261 and the lower support arm 262 changes, so as to change the height of the upper base 21 from the lower base 22.

[0031] Since the threads on both sides of the adjusting rod 23 have opposite rotation directions, when the adjusting rod 23 rotates, the first connecting rod 24 and the second connecting rod 25 move in opposite directions. The first connecting rod 24 and the second connecting rod 25 drive the rotating joint 263 to rotate, so that the angle between the upper supporting arm 261 and the lower supporting arm 262 changes, and the height of the upper base 21 from the lower base 22 changes, thereby achieving the purpose of height adjustment.

[0032] It should be noted that each pair of support arm groups 26 includes a first support arm group 26a located at the front side and a second support arm group 26b located at the rear side, and the first support arm group 26a and the second support arm group 26b are approximately located in the same front and rear longitudinal plane and are symmetrically arranged; therefore, when the rotation joints 263 of the first support arm group 26a and the second support arm group 26b are close to each other, the height position of the upper base 21 can be changed. When adjusting the height, the rotation joints 263 of the first support arm group 26a and the rotation joints 263 of the second support arm group 26b have the same rotation angle and opposite rotation direction. Each pair of support arm groups 26 has a similar working principle to a scissor jack.

[0033] When the height of the upper platform 12 needs to be adjusted, it is only necessary to rotate the adjusting rod 23. The height of the cabinet can be adjusted by rotating the adjusting rod 23, which is simple to operate and has a compact and reliable structure. The lifting device 2 can be used to adjust the height of the cabinet to facilitate people of different heights to use the cabinet;

[0034] Further references Figure 2 and Figure 3 The lower base 22 has a baffle plate 221 formed on the front side thereof. The baffle plate 221 has an oblong hole 222 extending in the up-down direction. The position of the oblong hole 222 corresponds to the position of the screw hole on the first connecting rod 24 .

[0035] It should be noted that the baffle 221 can be used to shield the internal components of the lifting device 2 to prevent foreign matter from entering and jamming the moving parts.

[0036] Furthermore, the lifting device 2 also has a crank 29 for rotating the adjustment rod 23;

[0037] refer to Figures 2 to 4 The adjusting rod 23 passes through the screw hole on the first connecting rod 24, and a connecting portion 231 with a polygonal cross-section is formed at the end; one end of the crank 29 is processed with a polygonal inner hole 291 adapted to the connecting portion 231; the crank 29 passes through the oblong hole 222, so that the polygonal inner hole 291 is sleeved on the connecting portion 231; the other end of the crank 29 is an operating portion 292.

[0038] One end of the crank 29 is sleeved on the connecting portion 231 of the adjusting rod 23, and the adjusting rod 23 is rotated by rotating the operating portion 292. The crank 29 is convenient for the user to manually adjust the height.

[0039] The oblong hole 222 is covered with a removable cover 222a. When not in use, the oblong hole 222 can be sealed with the cover 222a.

[0040] refer to Figure 1 The lifting device 2 also has a scissor mechanism 27 on both sides formed by a first scissor arm 271 and a second scissor arm 272 that are cross-rotatably connected; one end of the first scissor arm 271 is rotatably connected to the connection between the upper support arm 261 of the first support arm group 26a and the upper base 21; one end of the second scissor arm 272 is rotatably connected to the connection between the upper support arm 261 of the second support arm group 26b and the upper base 21; the other ends of the two scissor arms are in contact with the lower base 22 through a roller 273.

[0041] Specifically, the first scissor arm 271, the upper support arm 261 of the first support arm group 26a, and the upper base 21 are rotatably connected to the same rotation node; the second scissor arm 272, the upper support arm 261 of the second support arm group 26b, and the upper base 21 are rotatably connected to the same rotation node. The first scissor arm 271 and the second scissor arm 272 have a rotatable roller 273 at one end close to the lower base, and the roller 273 contacts the lower base 22. When the lifting device 2 is performing a lifting action, the first scissor arm 271 and the second scissor arm 272 rotate to adapt to the change in the height distance between the upper base 21 and the lower base 22.

[0042] It should be noted that the scissor mechanism 27 can further increase the stability of the lifting device 2 during the lifting process. Specifically, when the rotating joints of the first support arm group 26a and the second support arm group 26b rotate asynchronously during the lifting process, the upper base 21 may tilt, and the scissor mechanism 27 can prevent the tilt from occurring, so that the lifting process remains stable.

[0043] refer to Figures 5 to 7 The embodiment of the present invention also shows a lifting cabinet, which includes the above-mentioned lifting device 2 and a cabinet 1; the lifting device is used to adjust the height of the cabinet 1.

[0044] Furthermore, the cabinet 1 includes a cabinet body 11 and an upper platform 12 above the cabinet body 11 ; the lifting device 2 is embedded between the cabinet body 11 and the upper platform 12 ; the lower base 22 is in conflict with the cabinet body 11 ; and the upper base 21 is in conflict with the upper platform 12 .

[0045] The lifting device 2 is embedded in the upper end of the cabinet 11 and supports the upper platform 12 on the upper side; the lifting device 2 is used to adjust the height of the upper platform 12 .

[0046] Furthermore, a support member 111 is disposed on both sides of the cabinet 11 ; the support member 111 is against the lower base 22 of the lifting device 2 .

[0047] The support member 111 can be used to place the lifting device 2 , and then the lower base 22 of the lifting device 2 is used as the top plate of the cabinet 11 .

[0048] Further, a fixing pin 113 is provided on the support member 111 on one side for placing the crank 29. The fixing pin 113 for placing the crank 29 is provided on the support member 111, so as to facilitate the placement of the crank 29 and avoid the crank 29 from being lost.

[0049] Furthermore, the support members 111 are fixed on inner walls on both sides of the cabinet 11 .

[0050] Furthermore, a support foot 112 is disposed at each of the four corners of the bottom of the cabinet 11. The cabinet 11 is separated from the ground, which is conducive to keeping the cabinet 11 dry.

[0051] Furthermore, the cabinet 1 is a stove, a stove cabinet, a sink cabinet or a bar.

[0052] When the cabinet 1 is a stove, since the user needs to perform various operations on the stove, if the height does not match, it will be very inconvenient for the user to use. In addition, the stove usually needs to bear a heavy weight. The height of the stove can be adjusted by the lifting device 2 to meet the needs of users of different heights, and the lifting device 2 of the lifting cabinet has a simple and compact structure and has high reliability.

[0053] In some embodiments, reference Figure 7 The lifting device 2 is arranged at the bottom of the cabinet 1 and can be used to adjust the height of the entire cabinet 1.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A lifting device, characterized in that: The lifting device is used to adjust the height of the cabinet; the lifting device includes: an upper base, a lower base, an adjusting rod, a first connecting rod, a second connecting rod, and two pairs of support arm groups consisting of an upper support arm and a lower support arm; wherein, one end of the upper support arm is rotatably connected to the upper base, one end of the lower support arm is rotatably connected to the lower base, and the other end of the upper support arm is rotatably connected to the other end of the lower support arm; a pair of support arm groups are respectively arranged on both sides of the lifting device; each pair of support arm groups includes a first support arm group located at the front side and a second support arm group located at the rear side; the first support arm group and the second support arm group are symmetrically arranged front to back; the first support arm groups on both sides have the same front and back positions; the second support arm groups on both sides have the same front and back positions; the upper support arm and the lower support arm of each support arm group have a rotating joint at the connection; the rotating joints of the first support arm groups on both sides are respectively connected to the two ends of the first connecting rod; the rotating joints of the second support arm groups on both sides are respectively connected to the two ends of the second connecting rod; The adjusting rod is arranged along the front-back direction, and has threads with opposite rotation directions on both sides, the threads on one side of the adjusting rod cooperate with the screw holes provided on the first connecting rod, and the threads on the other side cooperate with the screw holes provided on the second connecting rod; the adjusting rod rotates to make the first connecting rod and the second connecting rod move in opposite directions, so that the angle between the upper supporting arm and the lower supporting arm changes, so as to change the height of the upper base from the lower base; The lower base is provided with a baffle plate on the front side; the baffle plate is provided with an oblong hole in the up-down direction; the position of the oblong hole corresponds to the position of the screw hole on the first connecting rod; The lifting device also has a scissor mechanism on both sides formed by a first scissor arm and a second scissor arm cross-rotatingly connected; one end of the first scissor arm is rotatably connected to the connection between the upper support arm of the first support arm group and the upper base; one end of the second scissor arm is rotatably connected to the connection between the upper support arm of the second support arm group and the upper base; the other ends of the two scissor arms are in contact with the lower base through a roller.

2. The lifting device according to claim 1, characterized in that: The lifting device also has a crank for rotating the adjusting rod; the adjusting rod passes through the screw hole on the first connecting rod, and a connecting portion with a polygonal cross-section is formed at the end; one end of the crank is processed with a polygonal inner hole adapted to the connecting portion; the crank passes through the oblong hole so that the polygonal inner hole is sleeved on the connecting portion; the other end of the crank is an operating portion.

3. The lifting device according to claim 1, characterized in that: The oblong hole is covered with a removable cover.

4. A lifting cabinet, characterized in that: The lifting cabinet comprises the lifting device as described in any one of claims 1 to 3, and also comprises a cabinet, and the lifting device is used to adjust the height of the cabinet.

5. The lifting cabinet according to claim 4, characterized in that: The lifting device is arranged at the bottom of the cabinet.

6. The lifting cabinet according to claim 5, characterized in that: The cabinet comprises a cabinet body and an upper platform body above the cabinet body; the lifting device is embedded between the cabinet body and the upper platform body; the lower base is in conflict with the cabinet body; and the upper base is in conflict with the upper platform body.

7. The lifting cabinet according to claim 6, characterized in that: A support member is arranged on both sides of the cabinet; the support member abuts against the lower base of the lifting device.

8. The lifting cabinet according to claim 6, characterized in that: A supporting foot is respectively arranged at the four corners of the bottom end of the cabinet.

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