TWM550577U - Single-arm type lift adjustment table - Google Patents

Description

Single arm lift adjustment table

The creation system provides a single-arm lifting adjustment table, in particular, the connecting rod group of the lifting mechanism below the table board comprises a cross connecting rod and a foot rod, and the first shaft and the second shaft pivotally connected to the base by the bottom of the foot rod a rod, and the first shaft and the second shaft are sleeved with a torsion spring, so that the operating portion of the adjusting device is disengaged from the central gear of the locking portion, and the torsion spring is matched with the meshing under the two legs The gear balance linkage linkage group rises rapidly, and the central gear drives the reverse displacement of the sliding rack at the two sides, and the auxiliary table plate is smoothly raised and easily adjusted to the positioning.

According to the table, the use of tables in today's office, home life, school or workstation is very common, and different types of tables have different application methods, such as computer desks, work desks, desks, folding tables, dining tables, etc., in order to provide users with more Large-area desktops are available. In addition to telescopic desktops, the general table is also a popular choice. The folding table is free to open and close, and is not limited by volume and space. It is easy to move and light. The advantages of the table body, etc., so the folding table is widely used by users.

Moreover, the length and width of the table currently on the market are both predetermined size and height. There are certain specifications. Although it can be applied to users of general size, it will be slightly used by users with higher or slightly shorter heights. Inadequate, even if there is a seat with adjustable lift height that can be used with the height of the table, the height of the lift that can be adjusted by the seat is limited and difficult to apply. Tables of various heights, for users with large differences in body size, will cause a lot of inconvenience in use.

Because people use tables and chairs for a long time in their daily life, sitting in the seat for a long time can cause pain in the back and neck, and cause heart rate, metabolic rate, insulin availability and high cholesterol levels to decrease, making cardiovascular disease The incidence of depression and diabetes will increase significantly. Therefore, in order to reduce the risk of obesity, improve metabolic problems and cardiovascular diseases, in recent years, there has been a boom in standing work, and more importantly, standing in addition to being healthy. In addition, it can improve work efficiency and productivity, so the work table with adjustable desktop height comes into being, to meet the needs of standing at work or work. In addition, most types of tables on the market currently have fixed dimensions that cannot be changed. Even if the table can be freely opened and closed for easy movement and storage, if the height of the table cannot be adjusted according to the size or needs of different users, the user's body or limbs may be rendered improperly posture, less ergonomic, or even necessary. The user changes the structural design of the table, and there are still many in practical applications. Loss and inconvenience, that is engaged in the research industry are anxious to improve the key lies here.

Therefore, in view of the above-mentioned problems and shortcomings, the new creators have collected such relevant materials through various assessments and considerations, and have used the trial and modification of many years of R&D experience in this industry to start such single-arm lifting adjustments. The new type of table was born.

The main purpose of this creation is that there are rails at the two sides of the bottom of the table, and the connecting rods of the lifting mechanism below the support include cross-links and foot bars, and the upper ends of the cross-links are respectively pivoted The sliding body of the sliding unit is located in the rail portion, and is respectively pivotally connected to the first shaft and the second shaft of the base rod frame under the foot rod, and the first shaft and the second shaft sleeve are sleeved The torsion spring is arranged. When the user pulls the adjusting device on the handle of the operating portion, the interlocking card can be disengaged from the central gear of the locking portion to form an unlocked state, and the torsion spring is matched with the two adjacent foot bars to engage with each other. The interlocking gear balance linkage link group rises rapidly, and the first sliding rack and the second sliding rack which are coupled to the two sliding bodies at the two sides of the center gear drive are displaced in opposite directions, so that the table board can be subjected to the lifting mechanism. The auxiliary drive is smoothly raised, allowing the user to easily adjust the table to the positioning, thereby achieving an easy operation, time saving and less effort.

The second purpose of the creation is that when the two legs of the connecting rod group are displaced inwardly or outwardly, the interlocking gears of the intermeshing can synchronously drive the displacement of the cross connecting rod, and assist the cross connecting rod and the foot rod. They have the same angular velocity, and the connecting lines of the upper and lower or the left and right corresponding rod ends of the cross-links are kept parallel or perpendicular, so that the connecting rods can be lifted up and down without yaw to maintain a stable balance, and the integrated base can be used. The single-arm lifting mechanism is combined with the scissor-type connecting rod group to ensure the stability and reliability of the vertical lifting of the table; when the connecting rod group is displaced, the foot rod can be rotated and pushed against the torsion spring to make the connection The rod group is subjected to the elastic supporting action of the torsion spring to prevent the table from falling rapidly or hitting the base, and the sliding body of the sliding unit can be stably and smoothly reciprocated sliding displacement.

Another purpose of the creation is that when the table is adjusted to an appropriate height position, the handle of the operation portion can be released, and the buffer body is driven to rotate the handle downwardly to reset the interlocking portion of the card member upward. The rotation of the central gear is locked to form a locked state, and the stopping portion is located in the positioning hole of the base frame to form a clamping position, so that the central gear is restricted by the clamping member and cannot be rotated, and the first gear can be locked by the central gear. The sliding rack and the second sliding rack are opposite to the inner tooth portion, and the sliding body of the sliding unit is unable to slide along the sliding space of the rail portion, and can be positioned by the stable supporting table of the connecting rod group. The height position is reserved.

1‧‧‧Table board

11‧‧‧Support

111‧‧‧Mounting holes

112‧‧‧Limited holes

113‧‧‧ screw holes

12‧‧‧Track Department

120‧‧‧Sliding space

1201‧‧‧ openings

121‧‧‧ top board

122‧‧‧ Sidewall panels

123‧‧‧rail plate

2‧‧‧ Lifting mechanism

21‧‧‧ linkage group

211‧‧‧cross link

2111‧‧‧first connecting rod

2112‧‧‧Second link

2113‧‧‧Center shaft

2114‧‧‧Connecting shaft

212‧‧‧foot

2121‧‧‧ linkage gear

2122‧‧‧Border

213‧‧‧Axis

22‧‧‧Slip unit

221‧‧‧Sliding body

2211‧‧‧ Positioning film

2212‧‧‧ shaft column

2213‧‧‧Roller

23‧‧‧Base

231‧‧‧foot frame

2311‧‧‧Support film

232‧‧‧First shaft

233‧‧‧Second shaft

234‧‧‧torsion spring

2341‧‧‧ pins

3‧‧‧Adjustment device

31‧‧‧First sliding rack

311‧‧‧ teeth

3111‧‧‧ linkage film

312‧‧‧First track slot

3121‧‧‧Guide screws

32‧‧‧Second sliding rack

321‧‧‧ teeth

3211‧‧‧ linkage film

322‧‧‧Second track slot

3221‧‧‧Guide screws

33‧‧‧Locking Department

331‧‧‧ pedestal

3310‧‧‧ accommodating space

3311‧‧‧First shaft hole

3312‧‧‧Shaft plate

3313‧‧‧Second shaft hole

3314‧‧‧ lugs

3315‧‧‧ positioning card hole

332‧‧‧Center gear

3321‧‧‧through hole

333‧‧‧ pivotal components

3331‧‧‧ Stud

3332‧‧‧Washers

3333‧‧‧ screws

34‧‧‧Operation Department

341‧‧‧Handle

3411‧‧‧ shaft

342‧‧‧Card parts

3421‧‧‧stops

3422‧‧‧Resistance Department

3423‧‧‧Perforation

343‧‧‧ buffer

3431‧‧‧Pushing rod

3432‧‧ ‧ spring

3433‧‧‧ Nuts

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional appearance of another perspective of the creation.

The third figure is a partial stereoscopic view of the creation.

The fourth figure is a partial exploded view of the creation.

The fifth figure is a partial exploded view of the connecting rod set and the base of the creative lifting mechanism.

The sixth figure is an exploded perspective view of the locking portion and the operating portion of the creation adjustment device.

The seventh picture is a side view of the creation before the adjustment.

The eighth figure is a side cross-sectional view of the section line A-A of the first drawing before the adjustment.

The ninth figure is a partial enlarged view of the section line A-A of the first figure when the adjustment is made.

The tenth figure is a partial enlarged view of the section line A-A of the first picture after the adjustment.

The eleventh figure is a three-dimensional appearance of the creation when it is lifted.

The twelfth figure is a side view of the creation after the folding.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second, third, fourth, fifth and sixth figures, which are respectively the three-dimensional appearance of the creation, the three-dimensional appearance of another perspective, the partial three-dimensional appearance, the partial three-dimensional exploded view, and the connection of the lifting mechanism. A partial exploded view of the rod set and the base and an exploded view of the locking portion and the operating portion of the adjusting device, as can be clearly seen from the figure, the one-arm lifting adjustment table of the present creation is The main components and features of the present invention are as follows. The main components and features of the case are as follows: wherein the bottom of the table 1 is provided with a support 11 and at the bottom of the support 11 A rail portion 12 is disposed at a side thereof, and a mounting hole 111 is disposed at a center between the two rail portions 12, and an elongated limiting hole 112 and a plurality of screw holes 113 are disposed around the mounting hole 111. The rail portion 12 has a side wall plate 122 extending downwardly from the left and right sides of the top plate 121, and a horizontal rail plate 123 is bent inwardly opposite the two side wall plates 122, and the rail portion 12 is A sliding space 120 is formed transversely between the top plate 121, the two side wall plates 122 and the interior of the rail plate 123, and an opening 1201 is formed between the two rail plates 123.

The lifting mechanism 2 has a connecting rod set 21 located below the support 11 , and the connecting rod set 21 includes a cross connecting rod 211 disposed oppositely to the left and right, and the two sets of intersecting connecting rods 211 have a first connecting rod 2111 which is crossed back and forth. The second link 2112 and the central axis 2113 pivotally connected to the center thereof are pivotally connected to the connecting rod 2114 respectively under the first link 2111 and the second link 2112 of the two sets of cross links 211. The oppositely disposed legs 212, and the two adjacent sides of the two adjacent legs 212 are respectively inclined inwardly and inwardly to the center to be respectively provided with interlocking gears 2121, which may be sector gears or curved teeth, etc. A frame 2122 is disposed on the opposite side of the two legs 212, and a shaft portion 213 is disposed above the cross link 211, and the sliding portion of the sliding unit 22 is located in the rail portion 12 on the shaft portion 213. The body 221, and each of the sliding bodies 221 includes a shaft post 2212 that is disposed transversely above the positioning piece 2211, and a plurality of rollers 2213 located in the sliding space 120 are respectively sleeved at the two ends of the shaft column 2212, and each positioning piece 221 1 extends outwardly through the opening 1201 to the outside of the sliding space 120 and is pivotally connected to the shaft portion 213, respectively.

In addition, a base 23 is assembled under the link group 21, and the leg frame 231 at the center of the base 23 has an upright support piece 2311 disposed opposite to the left and right, and is laterally disposed at the front and rear sides of the two support pieces 2311. The first shaft 232 and the second shaft 233 are respectively pivotally connected to the shaft of the interlocking gear 2121 of the foot rod 212, and the first shaft 232 and the second shaft 233 are respectively provided with a torsion spring 234. The pin 2341 at one end of the torsion spring 234 can be abutted against the surface of the base 23, and the pin 2341 at the other end of the torsion spring 234 abuts against the frame 2122 of the leg 212, so that the link group 21 can be It is subjected to the elastic support of the torsion spring 234 to have a predetermined supporting force.

The adjusting device 3 includes a first sliding rack 31 and a second sliding rack 32 disposed opposite to each other between the rail portions 12 at the two sides of the support 11 , and the first sliding rack 31 and the second sliding rack The teeth 311 and 321 are respectively disposed on the opposite sides of the teeth, and the diagonal positions of the first sliding rack 31 and the second sliding rack 32 at the front and rear of the teeth 311 and 321 are respectively bent downwardly and extended. The positioning piece 2211 corresponding to the sliding body 221 is coupled with the linking pieces 3111 and 3211, and at least one first track groove 312 is respectively formed along the longitudinal direction of the first sliding rack 31 and the second sliding rack 32. And the second rail groove 322, in the embodiment, the first sliding rack 31 and the second sliding rack 32 are respectively provided with one or more hollow spaces arranged in front and rear and parallel to the direction of the rail portion 12, respectively. The rail slot 312 and the second rail slot 322, and each of the first rail slot 312 and the second rail slot 322 is threaded into the screw hole 113 of the bracket 11 for guiding the lateral reciprocating sliding displacement. Lead screws 3121, 3221.

In addition, the adjusting device 3 is disposed between the first sliding rack 31 and the second sliding rack 32, and is provided with a locking portion 33. The locking portion 33 includes a base frame 331 and a central gear 332 pivotally connected to the center of the base frame 331. And a first shaft hole 3311 is disposed on the surface of the base frame 331, and a second shaft hole 3313 is disposed on the shaft plate 3312 extending downward at the left and right sides of the base frame 331, and the front and rear sides of the base frame 331 are respectively A horizontally extending lug 3314 is formed on the bottom surface of the support 11 and a positioning hole 3315 is formed in the longitudinal direction of the front lug 3314 adjacent to the base frame 331, and the two lugs 3314 and the base frame 331 are An accommodation space 3310 for positioning the sun gear 332 is formed therebetween.

In the embodiment, the sun gear 332 is engaged with the tooth portions 311 and 321 of the first sliding rack 31 and the second sliding rack 32 for driving the first sliding rack 31 and the second sliding rack 32. Displacement in the opposite direction, respectively, and the pivot hole 332 of the central gear 332 is axially disposed with the pivoting member 333, and the pivoting member 333 includes the stud 3331 which is riveted into the mounting hole 111 of the support 11 at the center. A plurality of washers 3332 on the upper and lower sides of the gear 332, and a first shaft hole 3311 passing through the base frame 331 and the through hole 3321 of the sun gear 332 are screwed into the stud 3331 to be integrated into a screw 3333. .

However, the lock portion 33 is coupled to the operation portion 34. The operation portion 34 includes a suspended handle 341 located outside the holder 11. The knob 341 is rotated in a direction parallel to the longitudinal direction of the rail portion 12, and is disposed on the handle 341. A shaft 3411 pivotally connected to the second shaft hole 3313 of the two-axis plate 3312 is disposed at one side, and the shaft 3411 is vertically disposed between the two-axis plates 3312 and extends upward to the periphery of the central gear 332. The clamping member 342, and the side of the clamping member 342 is a hook-shaped blocking portion extending upwardly and bent 3421, and a right-angled abutting portion 3422 is disposed at the other side of the blocking portion 3421. The abutting portion 3422 has a through hole 3242 which is provided with a buffer body 343 from bottom to top. The buffer body 343 includes a top portion. a push rod 3431 and a spring 3432 which is sleeved on the push rod 3431, and a nut 3433 is screwed onto the push rod 3431, and the two ends of the spring 3432 are respectively abutted against the resist portion 3422 and the nut 3433. In the elastic deformation state, the nut 3433 can be abutted against the lug 3314 behind the base frame 331, and the blocking portion 3421 of the interlocking member 342 is rotated upward to catch the sun gear 332, and the stopping portion 3421 is located. A locked state is formed in the positioning card hole 3315.

Please refer to the seventh, eighth, ninth, tenth, eleventh and twelfth figures for the side view, the side view before the adjustment, the side view of the AA section line before the adjustment, and the adjustment A partial enlarged view of the AA section line, a partially enlarged view of the AA section line after adjustment, a three-dimensional appearance diagram when lifting, and a side view after folding, as can be clearly seen from the figure, when the user wants to adjust When the height of the table 1 is raised or lowered, the palm of one hand can be used to abut against the side of the table top, and the finger is simultaneously biased by the finger to the handle 341 of the operating portion 34, so that the handle 341 is centered on the shaft 3411. Rotating upward toward the bottom surface of the table 1 can interlock the stop portion 3421 at one side of the engaging member 342 downward from the position of the slot at the periphery of the sun gear 332, and the restriction of the positioning hole 3315 of the base frame 331 The unlocking state is formed, and the spring portion 3432 of the cushioning body 343 is elastically deformed by the abutting portion 3422 at the other end of the engaging member 342, and then the table board 1 is pressed or lifted up to lift and lower. The link set 21 of the mechanism 2 acts to expand upward or downward.

During the operation of the link group 21, the shaft portion 213 above the cross link 211 can drive the slip body 221 of the slip unit 22 to slide on the rail portion 12, respectively. The reciprocating sliding displacement in the moving space 120 is carried out by the cross-link 211 to respectively displace the first shaft 232 and the second shaft 233 of the base 23 as an axially opposite inner or outer fan-shaped displacement. And the two-legged rod 212 is rotated to push against the torsion spring 234 to form an elastic deformation state, to form a shape of the scissor-type connecting rod group, and the interlocking gear 2121 is used to assist the connecting rod by the two-legged rod 212 meshing with each other. The group 21 is synchronously actuated and maintains a stable equilibrium state, and the sliding body 221 of the sliding unit 22 is vertically displaced by the plurality of rollers 2213 along the rail plate 123 at the lower portion of the rail portion 12, and the first sliding rack 31 is interlocked. The second sliding rack 32 is slidably displaced inwardly or outwardly, so that the teeth 311 and 321 are rotated by the central gear 332, and the first rail groove 312 and the second rail groove 322 are disposed. The guiding screws 3121, 3221 are guided to make a lateral reciprocating sliding displacement, so as to assist the central gear 332 to drive the first sliding rack 31 and the second sliding rack 32 respectively to move in opposite directions, so that the table 1 can be matched with the lifting mechanism 2 Achieve synchronous lifting displacement.

In this embodiment, when the two legs 212 of the link group 21 are in a relatively inward or outward sectoral displacement, the interlocking gears 2121 can be used to synchronously drive the cross link 211 to face outward or outward. The action of the fan-shaped displacement, and the auxiliary cross-link 211 and the foot bar 212 respectively have the same angular displacement and angular velocity, and the connecting line of the cross-link 211 up and down or the left and right corresponding rod ends is kept parallel or perpendicular, so that the link group 21 is straight up and down. Lifting the displacement without yaw or shaking to maintain a stable balance, the one-arm lifting mechanism 2 can be formed by the integrated flat base 23 and the scissor linkage group 21 to ensure the table 1 The center of gravity is stable, and the stability and reliability of the vertical lifting is improved. When the two legs 212 of the connecting rod group 21 are displaced downward, the rotating rod can be rotated to a resiliently deformed state on the torsion spring 234 to make the connecting rod The group 21 is subjected to the elastic support of the torsion spring 234 so as not to cause a rapid fall of the table 1 Or the impact on the base 23 occurs, and the sliding body 221 of the auxiliary sliding unit 22 can be stably and smoothly reciprocally slidably displaced, and the user can use the torsion spring 234 with the two-legged rod during the lifting of the table 1. The intermeshing interlocking gear 2121 balances the rapid upward displacement of the linkage link group 21, and the first sliding rack 31 and the second sliding rack 32 at the opposite sides of the locking portion 33 are driven by the sun gear 332 at the center of the locking portion 33, respectively. The directional displacement enables the table 1 to be quickly and smoothly lifted by the auxiliary mechanism of the lifting mechanism 2, so as to reduce the resistance generated by the weight or lifting of the table 1 itself, so that the user can easily adjust the table 1 to the position, and then It is easy to operate, saves time and effortless.

When the table 1 is adjusted to an appropriate height position, it can be released to the handle 341 of the operating portion 34, and is driven by the spring 3432 of the buffer body 343 to rotate the handle 341 downwardly to reset the interlocking member 342. The portion 3421 is rotated upward to catch the cogging at the periphery of the central gear 332 to form a locked state, and the blocking portion 3421 is located in the positioning card hole 3315 of the base frame 331 and can further extend upward to the limit of the support 11. The positioning position is formed in the position of the first sliding rack 31 and the second sliding rack 32 by the central gear 332, so that the central gear 332 is restrained from being locked by the locking member 342. 311, 321 , and the sliding body 221 of the sliding unit 22 can not be slidably displaced along the rail portion 12, and can be stably positioned by the connecting rod set 21 to be positioned at a predetermined height position, such an adjusting device 3 The first sliding rack 31 and the second sliding rack 32 are assembled between the two rail portions 12 of the table 1 and the table rail 1 , and the operating portion 34 can be pulled while pressing or lifting the table 1 . The control locking portion 33 is unlocked to drive the link group 21 of the lifting mechanism 2 to expand upward or downward. The operation, so that a user can easily and quickly adjust the height position of the top plate, so as to achieve a stable structure, easy to operate the effect.

In the present embodiment, the first sliding rack 31 and the second sliding rack 32 of the adjusting device 3 are disposed between the two rail portions 12 of the table 1 to form a left-right opposite arrangement, and are coupled to the first sliding rack 31 and The second sliding rack 32 is engaged with the central gear 332 of the locking portion 33 at the inner side. When the user presses or lifts the table 1 to lift or fold the link group 21 of the lifting mechanism 2, The sliding body 221 of the sliding unit 22 is slidably displaced in the sliding space 120 of the rail portion 12, and the first sliding rack 31 and the second sliding rack 32 are slidably displaced inward or outward. Further, the center gear 332 of the adjusting device 3 located at the locking portion 33 drives the first sliding rack 31 and the second sliding rack 32 to be displaced in opposite directions, respectively, so that the rod end of the connecting rod group 21 above the cross connecting rod 211 can be shortened. The lateral displacement stroke is to accelerate the speed at which the table 1 is synchronized for the lifting displacement adjustment, and the two sets of the cross links 211 of the link set 21 are formed to form the left and right opposite positions, and the two legs 212 are formed to be folded downward to When the base 23 is on, no jamming occurs, and the lifting will occur. The mechanism 2 is folded in a flat state to effectively reduce the overall occupied volume, and also enhances the convenience of movement, handling and storage.

Therefore, the present invention is mainly directed to the rail portion 12 at the bottom of the support 11 at the bottom of the table 1 and the link group 21 of the elevating mechanism 2 below the support 11 includes a cross link 211 and a foot rod 212. The upper portion of the cross-link 211 is pivotally connected to the sliding body 221 of the sliding unit 22 in the rail portion 12, and is respectively pivotally connected to the first shaft 232 and the second shaft of the base 23 below the foot rod 211. The rod 233 is disposed, and the first shaft 232 and the second shaft 233 are respectively sleeved with a torsion spring 234. When the user pulls the adjusting device 3 to the handle 341 of the operating portion 34, the interlocking member 342 can be disengaged from the locking. The central gear 332 of the portion 33 forms an unlocked state, and is coupled by the torsion spring 234 with the phase below the two adjacent legs 212. The interlocking interlocking gear 2121 balances the interlocking link group 21 to rise rapidly, and the sun gear 332 drives the first sliding rack 31 and the second sliding rack 32 which are coupled to the sliding body 221 of the two sliding unit 22 at both sides. Displacement in the opposite direction causes the table 1 to be smoothly lifted by the auxiliary mechanism of the lifting mechanism 2, so that the user can easily adjust the table 1 to the positioning, thereby achieving an easy operation and less laborious effect.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the above-mentioned single-arm lifting adjustment table can achieve its efficacy and purpose when used. Therefore, this creation is a practical and excellent creation, which is in line with the application requirements of the new patent, and is submitted according to law. I hope that the trial committee will grant this case as soon as possible to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give instructions, and the new creators will try their best to cooperate with them.

1‧‧‧Table board

11‧‧‧Support

12‧‧‧Track Department

120‧‧‧Sliding space

121‧‧‧ top board

122‧‧‧ Sidewall panels

123‧‧‧rail plate

2‧‧‧ Lifting mechanism

21‧‧‧ linkage group

211‧‧‧cross link

2111‧‧‧first connecting rod

2112‧‧‧Second link

2113‧‧‧Center shaft

2114‧‧‧Connecting shaft

212‧‧‧foot

2121‧‧‧ linkage gear

2122‧‧‧Border

213‧‧‧Axis

22‧‧‧Slip unit

221‧‧‧Sliding body

2211‧‧‧ Positioning film

2212‧‧‧ shaft column

2213‧‧‧Roller

23‧‧‧Base

231‧‧‧foot frame

2311‧‧‧Support film

232‧‧‧First shaft

233‧‧‧Second shaft

234‧‧‧torsion spring

2341‧‧‧ pins

3‧‧‧Adjustment device

33‧‧‧Locking Department

331‧‧‧ pedestal

34‧‧‧Operation Department

341‧‧‧Handle

342‧‧‧Card parts

343‧‧‧ buffer

Claims (10)

The utility model relates to a single-arm type lifting and adjusting table, which comprises a table board, a lifting mechanism and an adjusting device, wherein: the bottom of the table board is provided with a support, and a rail portion is arranged at two sides of the support, and the inner side of the two rail portions is horizontally Forming a sliding space; the lifting mechanism has a connecting rod group located below the support, and the connecting rod group includes a cross connecting rod and a foot rod pivotally connected below the cross connecting rod, and the two adjacent foot rods are opposite The inwardly extending to the center are respectively provided with interlocking gears which are meshed with each other, and then the sliding unit is respectively pivotally connected above the cross link, and the sliding unit comprises a sliding body located in the sliding space of the rail portion, and Below the rod group is a foot rod frame assembled with a base, and a first shaft and a second shaft respectively pivotally connected with the shaft of the linkage gear of the foot rod are horizontally penetrated on the foot rod frame, and the first The shaft and the second shaft respectively are respectively provided with a torsion spring elastically supporting the foot rod; the adjusting device comprises a first sliding rack which is located between the two rail portions and is respectively combined with the two sliding bodies at diagonal positions And a second sliding rack, and the first sliding rack and the second sliding tooth The locking portion provided includes a base frame and a sun gear pivotally coupled to the base frame, the center gear gear meshing with the first sliding rack and the second sliding rack opposite the inner side, and the operating portion coupled to the locking portion includes a handle, and a shaft pivoted on the base frame at one side of the handle, and the shaft is provided with a clamping member for locking the central gear to form a locked state; when the handle is rotated, the card is interlocked The piece is disengaged from the sun gear to form an unlocked state, and the interlocking gear of the torsion spring and the two adjacent leg rods mesh with each other to balance the linkage link group, and the center gear drives the first sliding rack and the second sliding rack to move in opposite directions. The table is subjected to an action of lifting and lowering the auxiliary belt action of the lifting mechanism. The one-arm type lifting and lowering adjustment table according to claim 1, wherein the support of the table is located at a center between the two rail portions, and the adjusting device is provided on the surface of the base portion of the locking portion. A first shaft hole is disposed, and a pivoting member that is coupled to the mounting hole through the first shaft hole is axially penetrated in the through hole of the sun gear. The one-arm type lifting and lowering adjustment table of claim 2, wherein the pivoting member of the locking portion comprises a stud riveted in the mounting hole, and a first shaft hole passing through the base frame from bottom to top The through hole of the center gear is screwed into the screw in the stud. The one-arm type lifting and lowering adjustment table according to claim 2, wherein the support is located at a position around the mounting hole, and a limiting hole is provided at the side of the clamping portion of the operating portion for holding the center The gear extends into the limiting hole to form a locking portion of the clamping position. The one-arm type lifting and lowering adjustment table according to the second aspect of the invention, wherein the support is located at a periphery of the mounting hole to have a plurality of screw holes, and the first sliding rack and the second sliding rack are respectively opposite to the inner side. a tooth portion meshing with the sun gear is disposed, and a link piece coupled to the sliding body is bent and extended at a diagonal position of the first sliding rack and the second sliding rack, respectively, and the first sliding rack and the second sliding rack are respectively One or more first rail slots and second rail slots are respectively disposed on the surface of the sliding rack, and the first rail slot and the second rail slot are threaded into the screw holes for guiding Guide screw for lateral reciprocating sliding displacement. The one-arm type lifting and lowering adjustment table according to claim 1, wherein the rail portion of the table has a top plate, and a horizontal rail plate is bent inwardly opposite the side wall plate at two sides of the top plate. And an opening is formed between the two rail plates, and the lifting mechanism of the sliding unit comprises a positioning column and a shaft column transversely disposed above the positioning piece, and is disposed in the sliding space at the two ends of the shaft column a plurality of rollers that are rolled and displaced along the rail plate, and the positioning piece is oriented The lower through opening extends out to the outside and is pivotally connected to the link set. The one-arm type lifting and lowering adjustment table according to claim 6, wherein the link group comprises a cross-link disposed oppositely to the left and right, and the first link and the second link are crossed in the two sets of cross-links. The rod and the center thereof are pivotally connected to the central shaft, and the connecting shafts below the first connecting rod and the second connecting rod are respectively pivotally connected to the front and rear oppositely disposed legs, and then the first link of the intersecting connecting rod A shaft portion is respectively disposed above the rod and the second connecting rod, and a positioning piece of the sliding body is pivotally connected to the shaft portion. The one-arm type lifting and lowering adjustment table according to claim 1, wherein the lifting mechanism has a frame at opposite sides of the two legs of the connecting rod group, and has left and right opposite positions on the foot frame of the base. a support piece, and the first shaft and the second shaft are transversely disposed at two sides of the two supporting pieces, and the pin at one end of the torsion spring is abutted on the base, and the pin at the other end of the torsion spring Resisting on the frame of the foot bar is elastically deformed. The one-arm type lifting and lowering adjustment table according to claim 1, wherein the adjusting device has a shaft plate extending downward at two sides of the base frame of the locking portion, and is provided with a handle on the shaft plate. The shaft shaft is pivotally connected to the second shaft hole, and the front and rear sides of the base frame are respectively bent and extended with the lugs at the bottom surface of the support plate of the table plate, and then the longitudinal lug of the front lug adjacent to the base frame The utility model is provided with a positioning card hole, and a receiving space for positioning the central gear is formed between the two lugs and the base frame, and a side of the clamping member of the operating portion is used for clamping the central gear and is formed in the positioning card hole. The stop of the locked state. The one-arm type lifting and lowering adjustment table according to claim 9, wherein the operating portion is provided with a perforating abutting portion at the other side of the blocking portion of the clamping member, and is in the perforation from bottom to top. Wearing a buffer body, the buffer body includes a push rod and a spring sleeved on the push rod. Further, a nut that is abutted against the base frame is screwed on the ejector pin, and the two ends of the spring are respectively elastically deformed against the resisting portion and the nut.