JP7199751B1 - Lifting device for table body - Google Patents

Abstract

A lifting device for a table body is provided. The present invention includes a base unit (1), a lifting unit (2), a table plate unit (3), a control operation unit (4) and a shock absorbing unit (5). Base unit 1 comprises at least one base 11 . The lifting unit 2 comprises a lifting tube constituted by at least one outer tube 21 and an inner tube 22 . The inner tube 22 is inserted into the outer tube 21 and can expand and contract correspondingly to the outer tube 21 . The inner tube 22 includes a second top plate 223 . The table plate unit 3 is installed above the lifting unit 2 and interlocks with the inner tube 22 . The control actuation unit 4 includes a telescopic rod 41 and a control plate 42 provided in the elevator pipe. The shock absorbing unit 5 includes an upper cushioning pad 51 , a lower cushioning pad 52 and rollers 53 . [Selection drawing] Fig. 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table lifting device, and more particularly to a device capable of reducing operating noise and improving the stability of the table board lifting operation.

A known table generally has a leg frame, and a table plate is installed above the leg frame. However, due to the undesired applicability of fixed-height tabletops, it is now common to have height-adjustable table bodies. FIG. 6 shows one of known table body structures, and the table body mainly comprises a pedestal 1', an elevating unit 2', and a table plate 3'. The bottom of the lifting unit 2' is joined with the pedestal 1', the table plate 3' is joined with the top of the lifting unit 2', the lifting unit 2' comprises an extensible outer tube 21', an inner tube 22', a gas pressure It has a rod 23' and a controller 24'. The outer tube 21' is fitted with the inner tube 22', the bottom end is joined to the base 1', the outer tube 21' is provided with a bottom plate 211' at the bottom, and an upper stop edge 212' at the top. ing. The inner tube 22' is fixedly joined to the table plate 3' at the top and provided with a stop block 221' at the outer edge of the bottom. The gas pressure rod 23' is installed in the outer tube 21' and the inner tube 22', the top end is joined with the inner tube 22', the bottom end is joined with the bottom plate 211' of the outer tube 21', and the control end is upward. 231' is provided. The control device 24' is installed at the position of the control end 231' of the gas pressure rod 23'. When the control device 24' presses the control end 231', the gas pressure rod 23' expands and contracts to move the table plate 3'. The height is adjustable and releasing the control device 24' allows the height of the table plate 3' to be positioned.

The above structure can support the weight of the table plate 3' by the gas pressure rod 23' and assist the lifting of the table plate 3', when the stop block 221' abuts against the upper stop edge 212'. Thus, the height of the table plate 3' can be restricted. However, if the user's operation is incorrect and the control device 24' continues to press the control end 231', the extension force of the gas pressure rod 23' will cause the table plate 3' to rise rapidly, causing the stop block 221 to move upward. ' and the upper retaining edge 212' generate a large collision noise, which leads to a situation in which the table plate 3' is greatly vibrated. Also, if the user causes the control device 24' to press the control end 231' and the force of pressing the table plate 3' is too great, the bottom end of the inner tube 22' and the bottom plate 211' of the outer tube 21' generates a large collision noise.

In addition, a gap is provided between the outer tube 21' and the inner tube 22' so that the inner tube 22' can move up and down within the outer tube 21'. Friction with the outer tube 21' is generated on the surface during movement, and the surface of the inner tube 22' is worn, resulting in a malfunction and noise due to wear.

SUMMARY OF THE INVENTION It is an object of the present invention to reduce operating noise and improve the stability of the table plate up-and-down motion.

The present invention includes a base unit, a lifting unit, a table board unit, a control actuation unit and a shock absorbing unit.
The base unit comprises at least one base on which it can land.
The elevating unit includes an elevating tube composed of at least one outer tube and an inner tube, the inner tube being inserted into the outer tube and capable of expanding and contracting corresponding to the outer tube. The outer tube has a bottom end fixedly joined to the base, has an inner surface and an outer surface, and includes a bottom plate fixedly joined to the bottom of the outer tube. Further, it includes a first top plate fixedly joined to the top of the outer tube, and a first through hole through which the inner tube can be inserted is provided in the center of the first top plate. The inner tube has an inner surface and an outer surface and further includes a second top plate fixedly joined to the top of the inner tube.
The table plate unit is installed above the lifting unit and joined to interlock with the inner tube.
The control actuation unit includes a telescopic rod and a control plate. A control button is provided at the top end of the telescopic rod, the telescopic rod is installed in the elevator pipe, and the two ends are respectively joined with the outer pipe and the inner pipe. The control plate is installed corresponding to the position of the control button, and can control pressing/non-pressing of the control button.
The shock absorbing unit includes an upper cushioning pad and a lower cushioning pad. The upper buffer pad is provided below the first top plate of the outer tube and has a third through hole in the center through which the inner tube can be inserted. It further comprises an upper surface and a lower surface, the upper surface of the upper cushioning pad abutting the first top plate. A lower cushioning pad is positioned above the bottom plate of the outer tube and has an upper surface and a lower surface. A lower surface of the lower damping pad can abut the bottom plate and an upper surface of the lower damping pad can abut the bottom end of the inner tube.

In some embodiments of the present invention, the shock absorbing unit further includes a group of rollers. The roller group includes a plurality of roller bases and a plurality of roller bodies. A roller pedestal is associated with the outer surface of the inner tube and the top surface of the roller pedestal located in the upper portion defines an abutment edge capable of contacting the lower surface of the upper damping pad. The roller body is pivotally or rotatably mounted on the roller base so that the roller body can roll against the inner surface of the outer tube.

The present invention can control the control plate to press the control button to operate the telescopic rod and position the length of the telescopic rod and the height of the table plate unit. In the present invention, the roller bodies of the roller group can roll along the inner surface of the outer tube during the lifting process of the table plate unit, thereby preventing frictional noise from occurring between the inner tube and the outer tube. Operation stability can be improved. Also, if the user continues to press the control button against the control plate and the telescopic rod continues to extend, the abutment edge can abut against the lower surface of the upper cushioning pad. Therefore, when the inner pipe rises rapidly, it is possible to prevent the occurrence of large collision noise between the outer pipe and the first top plate, and it is possible to prevent large vibrations of the table plate unit, thereby improving the stability of the operation. improves.

According to the present invention, when the control plate is pressed to press the control button, the table plate unit can be pushed down by force to move the inner tube downward. When the tabletop unit is lowered to its lowest position, the bottom end of the inner tube can abut against the upper surface of the lower cushioning pad. Therefore, it is possible to prevent the occurrence of large collision noise between the inner tube and the bottom plate of the outer tube, and it is possible to prevent the table plate unit from being greatly vibrated, thereby improving the stability of operation.

1 is a partially exploded view of the present invention; FIG. 1 is a partial assembly view of components of the present invention; FIG. 1 is a three-dimensional view of the present invention; FIG. Fig. 3 is an assembled cross-sectional view of the present invention, showing the table plate in its highest position; Fig. 3 is an assembled cross-sectional view of the present invention showing the table plate in its lowest position; It is an assembly sectional view of a well-known raising/lowering table body.

See FIGS. 1-4. 1, 2 and 4 show only a partial structure. The present invention includes a base unit 1 , a lifting unit 2 , a table board unit 3 , a control actuation unit 4 and a shock absorption unit 5 . The base unit 1 has two bases 11 that can be landed on, the two bases 11 are arranged in parallel and have a joint hole 12 in the center.

The elevating unit 2 includes two extensible outer tubes 21 and an inner tube 22 that constitute two elevating tubes. The two outer tubes 21 are hollow bodies and of corresponding construction, having an inner surface 211 and an outer surface 212 . It further includes two bottom plates 213 fixedly joined to the bottoms of the two outer tubes 21 respectively, and the bottom plates 213 can be welded together with the inner surface 211 of the outer tube 21 . Further, a joint hole 214 is provided, and by inserting the joint member 6 through the joint hole 214 of the outer tube 21 and the joint hole 12 of the base 11, the outer tube 21 can be combined. It further includes two first top plates 215 fixedly joined to the tops of the two outer tubes 21 respectively. The first top plate 215 can be welded together with the inner surface 211 of the outer tube 21 and has a first through hole 216 in the center through which the inner tube 22 can be inserted.

The two inner tubes 22 are of corresponding construction, each inner tube 22 moving up and down within the outer tube 21 and having an inner surface 221 and an outer surface 222 . It further includes two second top plates 223 fixedly joined to the tops of the two inner tubes 22 , and the two second top plates 223 can be welded and fixed to the inner surface 221 of the inner tubes 22 . A second through hole 224 is provided in the center of the second top plate 223, and a plurality of combination holes 225 are provided below the inner pipe 22 so as to pass through the inner surface 221 and the outer surface 222 of the inner pipe 22. .

The table plate unit 3 is provided above the elevating unit 2 and is joined to and interlocked with the two inner tubes 22 .

The control actuation unit 4 includes two telescopic rods 41 , two control plates 42 , two control wires 43 and a push-down handle 44 . The two telescopic rods 41 are controllably self-extending gas pressure rods or hydraulic rods or other telescopic rod bodies, and are provided with control buttons 411 at the top ends. The two telescopic rods 41 are respectively installed in the elevator tube constituted by the two outer tubes 21 and the inner tube 22 , the bottom end is fixedly connected with the bottom plate 213 of the outer tube 21 , and the control button 411 at the top end is the inner tube 22 . It is inserted through the second through hole 224 of the second top plate 223 and joined so as to interlock with the inner tube 22 . The control plate 42 is provided corresponding to the upper position of the control button 411 and can control pressing/non-pressing of the control button 411 . Each control wire 43 of the two control wires 43 is connected with the control board 42 respectively. The push-down handle 44 is connected to two control wires 43 and is provided at a position below the outside of the table plate unit 3 where it is easy for the user to control. Actuation can be driven simultaneously. The present invention can control the two control plates 42 by the push-down handle 44 at the same time, providing a convenient control effect.

The shock absorbing unit 5 includes an upper buffer pad 51 , a lower buffer pad 52 and rollers 53 . The upper buffer pad 51 is made of rubber or other soft material and is attached to the lower portion of the first top plate 215 of the outer tube 21 by adhesive or other bonding methods. It has a third through hole 511 in the center through which the inner tube 22 can be inserted, and further has an upper surface 512 and a lower surface 513 , the upper surface 512 abutting the first top plate 215 . The lower shock-absorbing pad 52 is made of rubber or other soft material, and is attached to the upper portion of the bottom plate 213 of the outer tube 21 by adhesive or other bonding methods. The center has a through hole 521 through which the telescopic rod 41 can be inserted, and further has an upper surface 522 and a lower surface 523 , the lower surface 523 of the lower cushioning pad 52 abutting the bottom plate 213 . The roller group 53 has a plurality of roller bases 531 and a plurality of roller bodies 533. The roller bases 531 are made of a non-metallic plastic material and are inserted into corresponding positions of the assembly holes 225 of the inner tube 22. A pin 532 is provided. The roller pedestal 531 can be assembled on the outside of the outer surface 222 of the inner tube 22 by inserting the insertion pin 532 into the assembling hole 225, and the top surface of the roller pedestal 531 located in the upper portion is provided with an upper buffer pad. An abutment edge 534 is formed which can abut against the lower surface 513 of 51 . The roller body 533 is rotatably mounted on the roller base 531 so that the roller body 533 can roll against the inner surface 211 of the outer tube 21 .

The present invention can drive the two control wires 43 by the push-down handle 44 to simultaneously control the two control plates 42 to press the two control buttons 411 to cause the two telescopic rods 41 to operate synchronously. At the same time, the table plate unit 3 can be moved upward or downward under force, and when the table plate unit 3 is adjusted to an appropriate height, the push-down handle 44 and the control plate 42 are released to allow the telescopic rod to move. 41 and the height of the table plate unit 3 can be positioned.

According to the present invention, the roller body 533 of the roller group 53 can roll along the inner surface 211 of the outer tube 21 while the table plate unit 3 is ascending or descending, and the inner tube 22 and the outer tube 21 are frictionally While being able to prevent noise from occurring, it is possible to improve the stability of the operation. As shown in FIG. 4, when the user pushes down the push-down handle 44 to cause the control plate 42 to continue to push the control button 411 and the telescopic rod 41 continues to extend, the contact edge 534 of the roller base 531 moves upward. It can abut the lower surface 513 of the cushioning pad 51 . As a result, when the inner tube 22 rises rapidly, it is possible to prevent the occurrence of large collision noise between the outer tube 21 and the first top plate 215, and it is possible to prevent large vibrations of the table plate unit 3. Operation stability is improved. The roller base 531 of the present invention is made of a non-metallic plastic material, and the abutment edge 534 formed on the plastic roller base 531 can further reduce the collision noise with the upper buffer pad 51, and is quiet. and good working texture effect.

Referring to FIG. 5, according to the present invention, when the control plate 42 is pushed by the push-down handle 44 to push the control button 411, the table plate unit 3 is pushed down by force to shorten the length of the telescopic rod 41, and the inner pipe 22 is pushed down. Can be moved downwards. The bottom end of the inner tube 22 can abut the upper surface 522 of the lower cushioning pad 52 when the table plate unit 3 is lowered to its lowest position. As a result, it is possible to prevent the occurrence of large collision noise between the bottom end of the inner tube 22 and the bottom plate 213 of the outer tube 21, and it is possible to prevent the table plate unit 3 from being greatly vibrated. Stability and operability are improved.

As described above, the present invention can reduce the collision noise in the up-and-down motion of the table body, and can improve the texture of the table body. The present invention may only be provided with a base, a set of outer tubes, an elevator tube composed of an inner tube, a telescopic rod, and a control plate, and the elevator unit of the present invention combines the inner tube with the base, and the outer tube may be combined with the table plate unit. The above-described embodiments are illustrative of the present invention and are not intended to limit the present invention, and all equivalent effect modifications based on the spirit of the present invention are within the scope of the present invention.

1 Base unit 11 Base 12 Joint hole 2 Lifting unit 21 Outer pipe 211 Inner surface 212 Outer surface 213 Bottom plate 214 Joint hole 215 First top plate 216 First through hole 22 Inner pipe 221 Inner surface 222 Outer surface 223 Second top plate 224 Second Through hole 225 Combination hole 3 Table plate unit 4 Control actuation unit 41 Telescopic rod 411 Control button 42 Control plate 43 Control wire 44 Push-down handle 5 Shock absorption unit 51 Upper buffer pad 511 Third through hole 512 Upper surface 513 Lower surface 52 Bottom Buffer pad 521 Through hole 522 Upper surface 523 Lower surface 53 Roller group 531 Roller base 532 Insertion pin 533 Roller body 534 Contact edge 6 Joining member 1' Base 2' Elevating unit 21' Outer tube 211' Bottom plate 212' Upper retaining edge 22' inner tube 221' stop block 23' gas pressure rod 24' controller 3' table plate

Claims (7)

a base unit comprising at least one base on which it can land;
An elevator tube is provided comprising at least one outer tube and an inner tube, the inner tube being inserted into the outer tube and capable of telescoping with respect to the outer tube, the outer tube having a bottom end at the a bottom plate fixedly joined to a base and having an inner surface and an outer surface; the bottom plate fixedly joined to the bottom of the outer tube; and a first top plate fixedly joined to the top of the outer tube; A first through hole through which the inner tube can be inserted is provided in the center of the top plate, the inner tube has an inner surface and an outer surface, and a second top plate fixedly joined to the top of the inner tube. a lifting unit; and
a table plate unit provided above the elevating unit and joined to interlock with the inner tube;
comprising a telescopic rod and a control plate, the top end of the telescopic rod is provided with a control button, the telescopic rod is installed in the elevator pipe, the two ends are respectively joined with the outer pipe and the inner pipe, and the a control actuation unit, wherein a control plate is installed corresponding to the position of the control button and can control pressing/non-pressing of the control button;
An upper shock-absorbing pad, a lower shock-absorbing pad and a group of rollers are provided, wherein the upper shock-absorbing pad is provided below the first top plate of the outer tube and has a third through hole in the center through which the inner tube can be inserted. and further comprising an upper surface and a lower surface, the upper surface of the upper damping pad abutting the first top plate, the lower damping pad being positioned above the bottom plate of the outer tube, the upper surface and a lower surface, the lower surface of the lower damping pad can abut the bottom plate, the upper surface of the lower damping pad can abut the bottom end of the inner tube, and the roller group comprises a plurality of rollers. It comprises a platform and a plurality of roller bodies, the rollers being combined with the outer surface of the inner tube, and the top surface of the roller platform located in the upper portion being the lower surface of the upper damping pad. forming an abuttable abutment edge, wherein the roller body is rotatably mounted on the roller platform so that the roller body can roll in abutment along the inner surface of the outer tube; a shock absorbing unit;
A table body lifting device including. 2. A lifting device for a table body according to claim 1, wherein a second through hole is provided in the center of said second top plate of said inner pipe so that said control button of said extensible rod can be pierced. A through hole through which the telescopic rod can be inserted is provided in the center of the lower shock-absorbing pad, and an end of the telescopic rod can be inserted through the through hole to be fixedly connected to the bottom plate of the outer tube. Item 1. A lifting device for a table body according to Item 1. A plurality of combination holes are provided below the inner tube through the inner and outer surfaces of the inner tube, insertion pins are provided corresponding to the positions of the combination holes of the inner tube, and the roller base is 2. A lifting device for a table body according to claim 1, wherein said insertion pin is provided in combination with said outer surface of said inner tube by inserting said insertion pin through said combination hole. 2. A lifting device for a table body according to claim 1, wherein said roller base is made of a non-metallic material. The control actuation unit further includes at least one control wire and at least one push-down handle, the control wire interlocking with the control plate, the push-down handle connected with the control wire to control the control wire. 2. A device for lifting a table body according to claim 1, wherein the operation of the control plate can be driven. The base unit comprises two said bases, the two bases are arranged in parallel, the elevating unit comprises two said elevating tubes, the two outer elevating tubes of the two said elevating tubes. The bottom ends of the tubes are respectively combined with two said bases, said control-actuating unit comprises two said telescopic rods and two said control plates, further comprising two control wires and a push-down handle, two said telescopic The rods are respectively combined and installed in the two elevator tubes, the two control plates are respectively installed corresponding to the positions of the control buttons of the two telescopic rods, and each of the two control wires is are respectively connected with the control plate, the push-down handle is connected with two of the control wires, the two control wires can be controlled to simultaneously drive the operation of the two control plates, and the shock absorbing unit comprises two said upper and two said lower cushioning pads, each said upper and each said lower cushioning pad being located within said elevator shaft, respectively. lift device.

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