Lifting table
By using a screw locking mechanism with a vertical threaded slot in the height-adjustable table, the problem of screw tilting and deformation is solved, resulting in more stable height adjustment and a longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-27
AI Technical Summary
The screws of existing height-adjustable desks are prone to tilting and deformation under the influence of gravity and the movement of components, resulting in unsmooth and unstable height adjustment and affecting their service life.
The screw locking component is used to lock in place with the vertical threaded slot to ensure stable installation of the screw tube mechanism and the support frame. The locking direction of the screw locking component is consistent with the direction of gravity and movement to prevent loosening.
The height adjustment of the height-adjustable table has been improved in terms of smoothness and stability, and its service life has been extended.
Smart Images
Figure CN224038693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lifting table technical field, concretely relates to a lifting table. BACKGROUND
[0002] The existing height-adjustable lifting table comprises a supporting foot stand and a lifting frame sliding up and down above the supporting foot stand, a screw rod mechanism is installed in the supporting foot stand, a sliding block is fixedly installed in the lifting frame, the sliding block is slidingly arranged on the screw rod mechanism, the screw rod mechanism is driven to rotate by an external tool such as a handle, thereby driving the sliding block to slide up and down, so that the lifting frame is adjusted in height. However, since the relative movement direction of the lifting frame and the supporting foot stand is the up-down direction, the force generated by the movement is also in the up-down direction, and the sliding block is locked by a screw in the horizontal direction on the lifting frame, so that the screw is easily deformed by tilting under the action of its gravity and the force generated by the movement of each component, thereby causing the sliding block to loosen, and further affecting the smoothness and stability of the height adjustment of the lifting table, thereby affecting the service life of the lifting table. SUMMARY
[0003] The utility model aims at providing a lifting table to solve the above technical problems.
[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a lifting table, comprising a screw locking piece, a screw pipe mechanism, a screw rod mechanism, a supporting foot stand and a lifting frame sliding up and down above the supporting foot stand; the supporting foot stand is provided with a first threaded slot hole extending in the vertical direction, the bottom of the screw pipe mechanism is provided with a second threaded slot hole extending in the vertical direction, the screw locking piece is locked and matched with the first threaded slot hole and the second threaded slot hole to realize the fixed installation of the screw pipe mechanism on the supporting foot stand; the screw rod mechanism comprises a screw rod seat fixedly installed on the lifting frame and a screw rod rotatably arranged on the screw rod seat, and the screw rod is threadedly connected with the screw pipe mechanism to realize the relative sliding up and down.
[0005] Preferably, it further comprises a table top installed on the top of the lifting frame, the supporting foot stand comprises a supporting foot pipe and an outer pipe vertically arranged on the supporting foot pipe, and the lifting frame comprises an inner pipe vertically arranged, and the inner pipe is slidingly arranged above the inside of the outer pipe.
[0006] Preferably, the screw rod mechanism is fixedly installed in the inside of the inner pipe through the screw rod seat, the first bevel gear and the second bevel gear are vertically transmission matched and installed in the screw rod seat, the first bevel gear is communicated with the outside, and the second bevel gear is fixedly connected with the top end of the screw rod.
[0007] Preferably, the first threaded slot hole and the second threaded slot hole are both through holes, the bottom of the outer pipe is fixedly provided with a first plugging plate, the first threaded slot hole is arranged at the first plugging plate, and the screw locking piece is locked and matched with the first threaded slot hole and the second threaded slot hole in sequence from bottom to top.
[0008] Preferably, the support leg pipes are two parallelly arranged left and right, the front and rear ends of the support leg pipes are respectively sleeved with leg pads, the outer pipes are two, the two outer pipes are vertically arranged on the left and right two support leg pipes, and the rear side between the two outer pipes is connected with a U-shaped connecting pipe.
[0009] Preferably, the inner pipes are two, and the lifting frame further comprises a transverse pipe connecting between the two inner pipes.
[0010] Preferably, the screw pipe mechanism comprises a hollow pipe body with an open top and a threaded sleeve fixedly installed at the inner top of the hollow pipe body, and a screw rod is threadedly connected with the threaded sleeve to realize relative sliding up and down.
[0011] Preferably, the bottom of the hollow pipe body is fixedly provided with a second blocking plate, and the second threaded slot hole is formed at the second blocking plate.
[0012] Preferably, the inner cavity of the hollow pipe body and the threaded sleeve are rectangular in cross section.
[0013] Preferably, a groove is arranged on the side wall of the threaded sleeve, and an elastic piece buckle is arranged on the hollow pipe body, the elastic piece buckle is correspondingly buckled and matched with the groove to realize the fixed installation of the threaded sleeve at the inner top of the hollow pipe body.
[0014] The utility model has the following beneficial effects:
[0015] The utility model discloses a lifting table, which comprises a support leg frame, a lifting frame and a screw pipe mechanism. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the perspective view of the embodiment of the utility model.
[0017] Figure 2 It is the assembly schematic view of the embodiment of the utility model.
[0018] Figure 3 It is the structural schematic view of the screw pipe mechanism of the embodiment of the utility model.
[0019] Figure 4 It is the exploded schematic view of the screw pipe mechanism of the embodiment of the utility model.
[0020] Figure 5is a bottom side view of the support foot frame of the embodiment of the utility model.
[0021] Fig. 1 is a screw locking piece, 2 is a screw pipe mechanism, 21 is a threaded sleeve, 22 is a hollow pipe body, 23 is a second plugging plate, 3 is a screw rod mechanism, 31 is a screw rod base, 32 is a screw rod, 33 is a first bevel gear, 34 is a second bevel gear, 4 is a support foot frame, 41 is an outer pipe, 42 is a support foot pipe, 43 is a foot pad, 44 is a first plugging plate, 45 is a buffer sleeve base, 46 is a U-shaped connecting pipe, 5 is a lifting frame, 51 is an inner pipe, 52 is a cross pipe, 6 is a table, 7 is a first threaded slot hole, 8 is a second threaded slot hole, 9 is a groove, 10 is a spring buckle. DETAILED DESCRIPTION
[0022] To further illustrate the embodiments, the utility model provides with the drawings. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiments, and can be combined with the related description of the specification to explain the operation principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model. The components in the figure are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0023] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes, and cannot be understood as indicative or implied relative importance.
[0024] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0025] Reference Figures 1-5As shown, as an embodiment of the utility model provides a lift table, including screw lock piece 1, screw pipe mechanism 2, screw rod mechanism 3, support foot stand 4, the lift frame 5 of upper and lower sliding arrangement in the upper of support foot stand 4 and the table 6 of installation in the top of lift frame 5, support foot stand 4 and ground support cooperation, support foot stand 4 is set with the first thread groove hole 7 extending towards vertical direction, the bottom of screw pipe mechanism 2 is set with the second thread groove hole 8 extending towards vertical direction, screw lock piece 1 and first thread groove hole 7, second thread groove hole 8 locking cooperation to realize the fixed installation of screw pipe mechanism 2 on support foot stand 4, screw rod mechanism 3 includes the screw rod seat 31 of fixed installation on lift frame 5 and the screw rod 32 of rotatable setting on screw rod seat 31, screw rod 32 and screw pipe mechanism 2 are connected in screw to realize the relative sliding of up and down, when needing to adjust the height of lift table, the screw rod 32 of screw rod mechanism 3 is driven to rotate by external tool such as hexagonal handle, and because screw pipe mechanism 2, support foot stand 4 are stationary relative to ground, when screw rod 32 is rotated, it can move up and down, and further drive lift frame 5, table 6 to move up and down together, so as to reach the height adjustment purpose of lift table. And because screw lock piece 1 is locked from vertical direction (i.e. up and down direction) with first thread groove hole 7, second thread groove hole 8 to realize the fixed installation of screw pipe mechanism 2 on support foot stand 4, the locking direction of screw lock piece 1 is same with its gravity direction and the movement direction of each component, so screw lock piece 1 is not easily affected by its gravity and the force generated by the movement of each component to occur inclination deformation, thereby preventing screw pipe mechanism 2 from loosening, ensuring the assembly stability between screw pipe mechanism 2 and support foot stand 4, and further improving the smoothness and stability of height adjustment of lift table, thereby prolonging the service life of lift table.
[0026] In the embodiment, the support foot stand 4 includes a support foot pipe 42 and an outer pipe 41 vertically arranged on the support foot pipe 42, and the lift frame 5 includes an inner pipe 51 vertically arranged, and the inner pipe 51 is slidably arranged above the inside of the outer pipe 41, so that the interference of each component during operation is avoided to the greatest extent, and the assembly and lifting process are more stable and reliable.
[0027] In the embodiment, the screw rod mechanism 3 is fixedly installed in the inside of the inner pipe 51 through the screw rod seat 31, the first bevel gear 33 and the second bevel gear 34 are vertically transmissionally installed in the screw rod seat 31, the first bevel gear 33 is externally communicated, the second bevel gear 34 is fixedly connected with the top end of the screw rod 32, the first bevel gear 33 is rotated through the external hexagonal handle, and then the second bevel gear 34 and the screw rod 32 are rotated, so that the screw rod mechanism 3 is slid upward or downward relative to the screw pipe mechanism 2, and the height adjustment of the lift table is realized.
[0028] In the embodiment, the screw 1 is a screw, the first threaded slot hole 7 and the second threaded slot hole 8 are both through holes, the bottom of the outer tube 41 is fixedly provided with a first blocking plate 44, the first threaded slot hole 7 is arranged at the first blocking plate 44, and the screw 1 is sequentially locked and matched with the first threaded slot hole 7 and the second threaded slot hole 8 from bottom to top. Since the bottom surface of the first blocking plate 44 is directly exposed to the outside, the locking operation of the screw 1 is more convenient and fast.
[0029] In the embodiment, the inner top of the outer tube 41 is provided with a buffer sleeve 45, and the inner tube 51 is located inside the buffer sleeve 45, that is, the buffer sleeve 45 is located between the inner tube 51 and the outer tube 41, thereby achieving a better buffering effect.
[0030] In the embodiment, the support leg pipe 42 is provided in two parallel left and right parts, the support leg pipe 42 is provided in a front and back direction, the front and back ends of the support leg pipe 42 are respectively provided with a foot pad 43, the outer tube 41 is provided in two parts, the two outer tubes 41 are vertically arranged above the left and right support leg pipes 42, the lower part of the support leg pipe 42 corresponding to the outer tube 41 is provided with a clearance for the screw to be locked and assembled, and the rear side between the two outer tubes 41 is connected with a U-shaped connecting pipe 46, that is, the opening of the U-shaped connecting pipe 46 faces forward, thereby making the foot movement space of a user sitting on a chair in front of the lifting table larger and more comfortable.
[0031] In the embodiment, the inner tube 51 is provided in two parts, and the lifting frame 5 further includes a horizontal pipe 52 connecting the two inner tubes 51 to ensure the stability of the connection.
[0032] In the embodiment, the screw pipe mechanism 2 includes a hollow pipe body 22 without a thread at the top and a threaded sleeve 21 fixedly installed at the inner top of the hollow pipe body 22. The inner cavity of the hollow pipe body 22 and the cross section of the threaded sleeve 21 are rectangular and correspond to each other, thereby effectively preventing the threaded sleeve 21 from rotating in the hollow pipe body 22. The screw rod 32 is threadedly connected with the threaded sleeve 21 to realize relative sliding up and down, and the inner cavity of the hollow pipe body 22 is provided for the screw rod 32 to extend and clear, thereby making the screw pipe mechanism 2 only need to be provided with a threaded structure in the threaded sleeve 21, without the need to be provided with a threaded structure in the hollow pipe body 22. The processing and later maintenance are more convenient. If the threaded structure is damaged, only the threaded sleeve 21 needs to be replaced, without the need to replace the entire screw pipe mechanism 2.
[0033] In the embodiment, the bottom of the hollow pipe body 22 is fixedly provided with a second blocking plate 23, and the second threaded slot hole 8 is arranged at the second blocking plate 23, that is, the bottom of the hollow pipe body 22 is locked at the first blocking plate 44 of the bottom of the outer tube 41 by the screw.
[0034] In the embodiment, the side wall of the threaded sleeve 21 is provided with a groove 9, and the hollow pipe body 22 is provided with a spring buckle 10, the spring buckle 10 is correspondingly clamped and matched with the groove 9 to realize the fixed installation of the threaded sleeve 21 on the inner top of the hollow pipe body 22. Specifically, the threaded sleeve 21 includes two oppositely split threaded half sleeves, and the groove 9 is located on the side of the two threaded half sleeves away from each other.
[0035] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all fall within the protection scope of the utility model.
Claims
1. A sit-stand desk, characterized by: The screw locking piece, the screw pipe mechanism, the screw rod mechanism, the support foot stand and the lifting frame slidingly arranged above the support foot stand; the support foot stand is provided with a first threaded slot hole extending in the vertical direction, the bottom of the screw pipe mechanism is provided with a second threaded slot hole extending in the vertical direction, the screw locking piece is locked and matched with the first threaded slot hole and the second threaded slot hole to realize the fixed installation of the screw pipe mechanism on the support foot stand; the screw rod mechanism comprises a screw rod seat fixedly installed on the lifting frame and a screw rod rotatably arranged on the screw rod seat, and the screw rod is in threaded connection with the screw pipe mechanism to realize the upward and downward relative sliding.
2. The lift table according to claim 1, characterized in that: It also includes a table installed on the top of the lifting frame, the support foot stand includes a support foot pipe and an outer pipe vertically arranged on the support foot pipe, and the lifting frame includes an inner pipe vertically arranged, and the inner pipe is slidingly arranged above the inside of the outer pipe.
3. The lift table according to claim 2, characterized in that: The screw rod mechanism is fixedly installed in the inside of the inner pipe through the screw rod seat, the first bevel gear and the second bevel gear are vertically transmission matched and installed in the screw rod seat, the first bevel gear is in communication with the outside, and the second bevel gear is fixedly connected with the top end of the screw rod.
4. The lift table according to claim 2, characterized in that: The first threaded slot hole and the second threaded slot hole are both through holes, the bottom of the outer pipe is fixedly provided with a first blocking plate, the first threaded slot hole is arranged at the first blocking plate, and the screw locking piece is locked and matched with the first threaded slot hole and the second threaded slot hole in sequence from bottom to top.
5. The lift table of claim 2, wherein: The support foot pipe is parallel arranged in left and right two, the front and rear ends of the support foot pipe are respectively sleeved with a foot pad, the outer pipe is two, the two outer pipes are vertically arranged on the left and right two support foot pipes, and the rear side between the two outer pipes is connected with a U-shaped connecting pipe.
6. The lift table of claim 2, wherein: The inner pipe is two, and the lifting frame further comprises a cross pipe connecting the two inner pipes.
7. The lift table of claim 1, wherein: The screw pipe mechanism comprises a hollow pipe body with an open top and a threaded sleeve fixedly installed at the inner top of the hollow pipe body, and the screw rod is in threaded connection with the threaded sleeve to realize the upward and downward relative sliding.
8. The lift table according to claim 7, characterized in that: The bottom of the hollow pipe body is fixedly provided with a second blocking plate, and the second threaded slot hole is arranged at the second blocking plate.
9. The lift table of claim 7, wherein: The inner cavity of the hollow pipe body and the cross section of the threaded sleeve are rectangular corresponding to each other.
10. The lift table of claim 7, wherein: The side wall of the threaded sleeve is provided with a groove, the hollow pipe body is provided with a spring piece buckle, and the spring piece buckle is correspondingly clamped and matched with the groove to realize the fixed installation of the threaded sleeve at the inner top of the hollow pipe body.