TWI725789B - Table structure with adjustable height - Google Patents

Abstract

The present invention provides a height-adjustable table body structure, which is mainly composed of a table board, a first support frame, a second support frame, a first spring, an adjustment unit, a linkage group, and a positioning member, and is characterized by the adjustment unit The adjusting piece is set on the top surface of the table and is for the user to observe. When the adjusting piece is driven, the locking piece of the linkage group will move from the locked position to the released position. At this time, the first and second support frames It can be pivoted freely. When the adjusting member is loosened, the locking member will move from the released position to the locked position to position the positioning member to complete the positioning after adjusting the height of the table. According to this, the height of the table is adjusted. During the adjustment, the user can clearly recognize the position of the adjustment piece, and the adjustment is more intuitive, achieving the purpose of easy operation and improved safety.

Description

Height-adjustable table structure

The present invention is related to the structure of the table body, in particular to a table body structure with adjustable height.

Please refer to Figure 1, which shows one of the drawings of the Republic of China patent (M526853) related to the structure of an adjustable lifting table. The adjustable lifting structure includes a table plate 1, a base 2 and an adjustment mechanism 3. The adjustment mechanism 3 is It includes two opposite scissor legs 4, the tops of the two scissor legs 4 are assembled on the bottom surface of the table board 1, the bottoms of the two scissor legs 4 are movably assembled on the base 2, and the tops of the two scissor legs 4 are respectively Adjusting parts 5 are provided. One side of each adjusting part 5 extends with a handle 6 located below the table board 1. The user only needs to manipulate the two handles 6 to drive the two scissor legs 4 to vertically rise and fall, thereby achieving adjustment The purpose of the height of the table.

However, the positions of the two handles 6 are all located under the table top 1. When the user wants to adjust the height of the table top, because the position of the two handles 6 is not clear, the user can only use the memory to find out or In addition to random groping, sometimes bending over to search, resulting in inconvenience in operation, and even dangerous, for example: fingers touch sharp objects and get injured.

Therefore, how to solve the above-mentioned problems and deficiencies is the direction that the creators of the present invention and related industries engaged in this direction urgently want to study and improve.

The purpose of the present invention is to provide a height-adjustable table structure, which mainly allows the user to clearly recognize the position of the adjustment piece of the table, which is more intuitive in use, and achieves the purpose of easy operation and improved safety.

In order to achieve the foregoing objective, according to the present invention, a height-adjustable table structure is provided, which includes: a table with a top surface and a bottom surface opposite to the top surface; at least one adjustment unit is provided on the table , And has an adjustment member that penetrates the top surface and allows the user to observe, and a driving group driven by the connection of the adjustment member, the adjustment member can be displaced between a first position and a second position; at least; A linkage group is arranged on the bottom surface of the table top, and has a transmission rod and at least one locking member. The transmission rod is pivotally and resetably disposed on the bottom surface of the table top, and has a second driving group connected to the driving group. A rod portion, and a second rod portion, the at least one locking member is pivoted on the second rod portion and can be displaced between a release position and a locking position; at least one positioning member is provided on the table top The bottom surface is capable of lateral displacement of the table plate along with the longitudinal displacement of the table plate, the at least one positioning member has a number of positioning grooves greater than the number of the locking member, and the positioning groove is used for the locking member to be inserted or detached; accordingly, the When the adjusting member is displaced from the first position to the second position, the adjusting unit drives the transmission rod to pivot forward by an angle and accumulates a restoring force, and at the same time drives the at least one locking member to move from the locked position to the released position, so that The at least one locking element is separated from the positioning grooves of the at least one positioning element. After the table is longitudinally displaced, the at least one positioning element is laterally displaced relative to the at least one locking element. The adjusting element is released, and the transmission rod is moved by the The accumulated restoring force is reversely pivoted by an angle, so that the adjusting member is displaced from the second position to the first position, and the at least one locking member is moved from the released position to the locked position, so that the at least one locking member is inserted into the Each positioning slot of at least one positioning member.

Thereby, the present invention proposes a height-adjustable table structure, which is characterized in that the adjustment piece is installed on the top surface of the table board and is for the user to observe, so that the user can clearly identify the position of the adjustment piece, and is in use It is more intuitive to achieve the purpose of easy operation and improved safety.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following examples are given. And with the attached drawings, the detailed description is as follows.

[Learning]

1: table board

2: base

3: adjustment mechanism

4: Scissor tripod

5: Adjustment Department

6: handle

〔this invention〕

10: table board

11: Top surface

12: Bottom

13: Hub

14: Connection block

15: fixed piece

Y: vertical

X: horizontal

20: limit seat

21: accommodating slot

31: Upper slide

32: bottom frame

33: Slide seat

34: The first support frame

341: The first lower support end

342: The first upper support end

35: second support frame

351: The second upper support end

352: second lower support end

36: The first spring

361: The first stretched end

362: second stretched end

37: connecting rod

40: adjustment unit

41: adjustment piece

42: drive group

421: The first part

422: The second part

423: The third part

425: Longitudinal

4251: The first longitudinal rod

4252: second longitudinal rod

426: Crossbar

4261: The first crossbar

4262: The second crossbar

50: linkage group

51: drive rod

511: first pole

512: second pole

513: third pole

52: Locking piece

521: first end

522: second end

53: Front eccentric block

531: front eccentric

54: Middle eccentric block

541: middle eccentric part

55: rear eccentric block

551: rear eccentric

56: second spring

561: first reset end

562: second reset end

60: positioning parts

61: positioning slot

Figure 1 shows one of the drawings of the Republic of China patent (M526853) related to the structure of an adjustable lift table; Figure 2 is a perspective view of the first embodiment of the present invention; Figure 3 is a perspective view of the first embodiment of the present invention from another perspective; Figure 4 is a partially enlarged perspective view of the first embodiment of the present invention; Figure 5 is a side view of the first embodiment of the present invention, showing the state before the height of the table top is adjusted; Figure 6 is a top view of the first embodiment of the present invention; 7 is a schematic diagram of the operation of the first embodiment of the present invention, showing the state of the adjusting member in the first position; FIG. 8 is a schematic diagram of the operation of the first embodiment of the present invention, showing the state of the adjusting member in the second position; FIG. 9 is the state of the present invention The action diagram of the first embodiment, showing the state of the locking member in the locked position; Figure 10 is the action diagram of the first embodiment of the present invention, showing the state of the locking member in the released position; Figure 11 is the state of the first embodiment of the present invention Action schematic diagram, showing another view of the locking member in the locked position; Figure 12 is a schematic view of the action of the first embodiment of the present invention, showing another view state of the locking member in the release position; Figure 13 is the first embodiment of the present invention The side view of the table, showing the status of the height adjustment of the table; Figure 14 is a perspective view of the second embodiment of the present invention; Figure 15 is a perspective view of the second embodiment of the present invention from another perspective; Figure 16 is a perspective view of the second embodiment of the present invention, showing the state of hiding the table; Figure 17 is the present invention A partial three-dimensional view of the second embodiment of the invention, showing the state of one set of the limit seat, the adjustment unit, the linkage group, and the positioning member; FIG. 18 is a partial three-dimensional view of the second embodiment of the present invention, showing the limit seat, the adjustment unit, and the linkage Fig. 19 is a schematic diagram of the operation of the second embodiment of the present invention, showing the state of the adjusting member in the first position and the locking member in the locked position of one group; Fig. 20 is the first position of the present invention The schematic diagram of the operation of the second embodiment, showing the state of the adjusting member of one group in the second position and the locking member in the released position; FIG. 21 is the schematic diagram of the operation of the second embodiment of the present invention, showing that the adjusting member of the other group is in the first position. Position, the state of the locking member in the locked position; Figure 22 is a schematic diagram of the action of the second embodiment of the present invention, showing another set of adjustment members in the second position, the state of the locking member in the release position; Figure 23 is the first embodiment of the present invention The schematic diagram of the operation of the second embodiment shows the state of the locking members of the two groups in the locked position; FIG. 24 is a schematic diagram of the operation of the second embodiment of the present invention, showing the state of the locking members of the two groups in the released position.

Before presenting a detailed description, it should be noted that in the following description, similar component and part names are represented by the same number.

Please refer to Figures 2 to 13, the first embodiment of the present invention provides a height-adjustable table structure, which is mainly composed of a table board 10, a limit seat 20, two upper sliding seats 31, and a bottom frame 32 , Composed of two sliding seats 33, a first support frame 34, a second support frame 35, two first springs 36, an adjustment unit 40, a linkage group 50, and a positioning member 60, of which:

As shown in Figures 2 and 3, the table top 10 has a top surface 11 and a bottom surface 12 opposite to the top surface 11; the height direction of the table top 10 is adjusted to the longitudinal direction Y, and the table top 10 is more There is a transverse X perpendicular to the longitudinal Y.

As shown in FIG. 5 and FIG. 9, the limiting seat 20 is fixed on the bottom surface 12 of the table top 10 and has an accommodating groove 21.

As shown in FIG. 3 and FIG. 4, the two upper sliding seats 31 are fixed on the bottom surface 12 of the table board 10 and are respectively located on both sides of the limit seat 20.

As shown in FIGS. 2 and 3, the bottom frame 32 is located below the bottom surface 12 of the table top 10, and is a distance away from the table top 10.

As shown in FIG. 2, the two sliding seats 33 are fixed on both sides of the bottom frame 32.

As shown in FIGS. 2 to 4, the first support frame 34 has a first lower support end 341 pivoted on the bottom frame 32, and a first upper portion slidably mounted on the two upper sliding seats 31 Support end 342: In this embodiment, the first upper support end 342 is slidably disposed on the two upper sliding seats 31 by a connecting rod 37 penetrating the accommodating groove 21.

As shown in Figures 2 to 4, the second support frame 35 is pivotally connected to the first support frame 34, and is X-shaped with the first support frame 34; the second support frame 35 has a pivot The second upper supporting end 351 of the bottom surface 12 of the table top 10 and a second lower supporting end 352 slidably disposed on the two lower bases 33.

As shown in FIGS. 2 to 4, the two first springs 36, each of the first springs 36 has a first stretched end 361 provided on the connecting rod 37 of the first support frame 34 and a fixed piece 15 and fixed on the second stretched end 362 of the bottom surface 12 of the table top 10, so that the table top 10 maintains the rising power. In addition, the number of the first springs is not limited to two, and more than one is possible, as long as the table top 10 maintains the lifting power.

As shown in FIGS. 3 to 8, the adjustment unit 40 is disposed on the table top 10, and has an adjustment member 41 that penetrates the top surface 11 and is viewable by the user, and is connected and driven by the adjustment member 41 The driving group 42 is capable of moving between a first position (Figure 7) and a second position (Figure 8); in this embodiment, the driving group 42 is a single integrally formed member and has A first part 421 connected to the adjusting member 41, a second part 422 pivoted on the bottom surface 12 of the table top 10, and a third part 423 between the first part 421 and the second part 422; In this embodiment, the bottom surface 12 of the table top 10 is provided with a hinge 13, and the second part 422 is pivoted on the hinge 13, so that the driving group 42 and the table top 10 are in a pivotal configuration.

As shown in FIGS. 3, 4, 5, 7, 8 and 9, the linkage group 50 is arranged on the bottom surface 12 of the table top 10, and has a transmission rod 51 and two locking members 52. The transmission rod 51 can be pivoted and reset on the bottom surface 12 of the table top 10, and has a first rod portion 511 driven by the driving group 42 connection, a second rod portion 512, and a rod located at the first rod The third rod portion 513 between the second rod portion 511 and the second rod portion 512; in this embodiment, the first rod portion 511 is fixedly provided with a front eccentric block 53 which has a front eccentric portion 531. The eccentric portion 531 is not on the axis of the transmission rod 51, and the front eccentric portion 531 is connected to the third part 423 of the adjusting member 41 to move simultaneously, whereby the transmission rod 51 can be driven by the adjusting unit 40 to pivot Turn an angle

In addition, the third rod portion 513 of the transmission rod 51 is provided with a middle eccentric block 54 which has a middle eccentric portion 541 which is not on the axis of the transmission rod 51; the second rod portion of the transmission rod 51 512 A rear eccentric block 55 is provided, and the rear eccentric block 55 has a rear eccentric portion 551 that is not on the axis of the transmission rod 51.

The two locking members 52 are pivoted on the second rod portion 512 and can be displaced between a release position (FIG. 10) and a locking position (FIG. 9); in this embodiment, each of the locking members 52 has a pivot A first end 521 of the rear eccentric portion 551 and a second end 522 opposite to the first end 521 are provided. It is worth mentioning that the return of the transmission rod 51 after pivoting is achieved by a second spring 56, that is, the second spring 56 has a first return end 561 fixed on the limit seat 20 , And a second reset end 562 fixed eccentrically on the transmission rod 51. In this embodiment, the second reset end 562 is hooked on the middle eccentric part 541 of the middle eccentric block 54, thereby, When the adjusting unit 40 drives the transmission rod 51 to pivot forward by an angle, the second spring 56 is stretched to provide the restoring force to the transmission rod 51.

As shown in Figure 4, Figure 5, Figure 6, Figure 9 to Figure 12, the positioning member 60 is provided on the bottom surface 12 of the table top 10, and can extend the horizontal X of the table top 10 along with the vertical Y displacement of the table top 10 Displacement, the positioning member 60 has a greater number of positioning grooves 61 than the number of the locking member 52, and each of the positioning grooves 61 is arranged along the transverse direction X, and the positioning groove 61 is for the second end 522 of the locking member 52 to be inserted or inserted. Disengagement; In this embodiment, the positioning member 60 is displaceably disposed in the accommodating groove 21 of the limiting seat 20, and is pierced by the connecting rod 37 of the first support frame 34, according to this, When the height of the table top 10 changes and the longitudinal Y displacement is changed, the relative angle of the first support frame 34 with respect to the second support frame 35 is changed. When the first upper support end 342 of the first support frame 34 slides , It drives the connecting rod 37 on it to move simultaneously, and then drives the positioning member 60 to move laterally X along the table board 10.

Accordingly, when the height of the table top 10 is pre-adjusted, the user can push the adjusting member 41 and displace the adjusting member 41 from the first position (FIG. 7) to the second position (FIG. 8). At this time, let The adjustment unit 40 drives the transmission rod 51 to pivot forward by an angle, and the positively pivoted transmission rod 51 allows the second spring 56 to accumulate an elastic restoring force, and at the same time causes each of the locking members 52 to be locked from the locked position ( Figure 9) Move to the release position (Figure 10), The second end 522 of the locking member 52 is separated from the positioning grooves 61 of the positioning member 60. At this time, the height of the table top 10 can be adjusted. When the table top 10 is adjusted in height and the longitudinal Y displacement is in progress, The positioning member 60 is driven by the connecting rod 37 of the first support frame 34 to move laterally X, so that the positioning member 60 is displaced laterally X relative to the locking member 52. After the height of the table top 10 is adjusted, release the adjusting member 41, and the second spring 56 makes the transmission rod 51 reversely pivot by an angle, so that the adjusting member 41 is displaced from the second position (FIG. 8) to the first position. Position (Figure 7), and each of the locking members 52 is moved from the release position (Figure 10) to the locked position (Figure 9), so that the second end 522 of each locking member 52 is inserted into each of the positioning members 60 again The positioning groove 61 is used to complete the positioning after height adjustment.

It can be seen that the present invention proposes a height-adjustable table structure, which is characterized in that the adjusting member 41 is inserted through the top surface 11 of the table top 10 and is for the user to observe, so that the user can clearly recognize the adjusting member. The position of 41 is more intuitive to use, achieving the purpose of easy operation and improved safety.

Please refer to Figures 14 to 24, the second embodiment of the present invention provides a height-adjustable table structure, which differs from the first embodiment in the limit seat 20, the adjustment unit 40, the linkage group 50 and There are two sets of positioning members 60 with the same structure but different sizes. among them:

The two limit seats 20 are respectively arranged on the bottom surface 12 of the table top 10 and are located on both sides of the first support frame 34 and the second support frame 35 at the same time.

The two adjustment units 40 are respectively arranged on both sides of the table top 10, and the two adjustment units 40 have the same structure and composition, except for the size. Each adjustment unit 40 has a top surface 11 through which the user can view According to the adjustment member 41, and a driving group 42 driven by the adjustment member 41, the adjustment member 41 can be between a first position (Figure 19, Figure 21) and a second position (Figure 20, Figure 22) In this embodiment, the driving group 42 includes a longitudinal rod 425 and a transverse rod 426, the longitudinal rod 425 has a first longitudinal rod portion 4251 connected to the adjusting member 41, and a connecting block 14 And pivoted on the second vertical rod part 4252 of the table top 10, the cross rod 426 There is a first cross-bar portion 4261 and a second cross-bar portion 4262 pivoted on the longitudinal rod 425, and the second cross-bar portion 4262 is eccentrically connected to the first rod portion 511 of the transmission rod 51.

The two linkage groups 50 are respectively arranged on both sides of the bottom surface 12 of the table top 10, and each is composed of a transmission rod 51 and two locking parts 52. The transmission rod 51 is pivotally and resettable on the bottom surface 12 of the table top 10, and has a first rod portion 511 and a second rod portion 512 that are connected and driven by the driving group 42; in this embodiment, the The first rod portion 511 is fixedly provided with a front eccentric block 53. The front eccentric block 53 has a front eccentric portion 531. The front eccentric portion 531 is not on the axis of the transmission rod 51, and the front eccentric portion 531 is connected to the horizontal The second cross-bar portion 4262 of the rod 426 is connected to move simultaneously, whereby the transmission rod 51 can be driven by the adjustment unit 40 to pivot at an angle; in addition, the second rod portion 512 of the transmission rod 51 is set at the limit The accommodating groove 21 of the seat 20 is provided with a rear eccentric block 55 having a rear eccentric portion 551 which is not on the axis of the transmission rod 51. Two of the locking members 52 are arranged in the accommodating groove 21 of the limiting seat 20, and have a first end 521 eccentrically pivoted on the second rod portion 512, and a first end 521 inserted into or separated from the positioning groove 61 The second end 522, that is, the first end 521 of each locking member 52 is connected to the rear eccentric portion 551 of the rear eccentric block 55, so that the transmission rod 51 pivoted by an angle can drive each of the locking members 52 to move. In this embodiment, the return of each transmission rod 51 after pivoting is mainly achieved by two second springs 56, that is, the two second springs 56 have a first return fixed on the wall surface of the accommodating groove 21 The end 561 and a second reset end 562 that pushes against the first end 521 of the locking member 52. When the driving group 42 drives the transmission rod 51 to pivot forward by an angle, the second spring 56 is compressed The restoring force is provided to the transmission rod 51 so that the transmission rod 51 can be reset after pivoting. In addition, the number of the locking member 52 and its matched second spring 56 is not limited to two, and more than one is possible. The locking member 52 only needs to be released and locked, and the second spring 56 only needs to be Corresponding to the number of the locking pieces 52, and the locking pieces 52 can be reset after being displaced.

The two positioning members 60 are respectively displaceably disposed in the accommodating groove 21 of the limiting seat 20, and are also pierced by the connecting rod 37 disposed on the first support frame 34. Therefore, they are assembled in The connecting rod 37 on the first support frame 34 simultaneously drives the two positioning members 60 to move in the transverse direction X in the corresponding limit seat 20.

The adjustment action mode of the second embodiment is substantially the same as that of the first embodiment. The difference is: because the connecting rod 37 provided on the first support frame 34 drives the two positioning members 60 at the same time, and the two positioning members 60 are They are respectively locked by the two driving groups 42. Therefore, when adjusting the height of the table top 10, the user must simultaneously control the adjusting members 41 of the two adjusting units 40, so that the correspondingly controlled locking members 52 are respectively in the release positions ( Figure 20, Figure 22) to unlock the two positioning members 60 at the same time, and then the height of the table board 10 can be adjusted. Similarly, for the positioning of the table top 10 after the height adjustment, the two locking members 52 must be respectively in the locked positions (Figure 19, Figure 21) to lock the two positioning members 60 at the same time to complete the table top 10 Positioning after height adjustment.

In summary, the above-mentioned embodiments and drawings are only preferred embodiments of the present invention. When they cannot be used to limit the scope of implementation of the present invention, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall belong to This invention patent covers the scope.

10: table board

11: Top surface

12: Bottom

Y: vertical

X: horizontal

32: bottom frame

33: Slide seat

34: The first support frame

341: The first lower support end

35: second support frame

352: second lower support end

40: adjustment unit

Claims (13)

A height-adjustable table body structure includes: a table plate having a top surface and a bottom surface opposite to the top surface; at least one adjustment unit is arranged on the table plate and has a top surface and The adjustment piece for the user to observe and a driving group driven by the connection of the adjustment piece, the adjustment piece can be displaced between a first position and a second position; at least one linkage group is arranged on the table top The bottom surface is provided with a transmission rod and at least one locking member. The transmission rod is pivotally and resetably arranged on the bottom surface of the table board, and has a first rod portion and a second rod portion driven by the driving group connection , The at least one locking member is pivoted on the second rod and can be displaced between a release position and a locking position; at least one positioning member is provided on the bottom surface of the table and can move along the longitudinal direction of the table While extending the lateral displacement of the table board, the at least one positioning member has a greater number of positioning grooves than the number of the locking member, and the positioning groove is used for the locking member to be inserted or detached; accordingly, the adjustment member is displaced from the first position to the second position Position, the adjusting unit drives the transmission rod to pivot forward by an angle and accumulates a reset force, and at the same time drives the at least one locking member to move from the locking position to the release position, so that the at least one locking member is released from the at least one locking After the longitudinal displacement of the table top, the at least one positioning member is laterally displaced relative to the at least one positioning member, the adjusting member is released, and the transmission rod is reversely pivoted by the accumulated reset force. The angle causes the adjustment member to be displaced from the second position to the first position, and the at least one locking member is moved from the release position to the locking position, so that the at least one locking member is inserted into the positioning grooves of the at least one positioning member. The height-adjustable table structure according to claim 1, which further includes a limit seat, two upper sliding seats, a bottom frame, two sliding seats, a first supporting frame, and a second supporting frame. Limit seat fixed On the bottom surface of the table top and for the positioning member to be provided for lateral displacement along the table top; the two upper sliding seats are fixed on the bottom surface of the table top and are respectively located on both sides of the limit seat; the bottom frame is located at Below the bottom surface of the table board; the two sliding seats are fixed on both sides of the bottom frame; the first support frame has a first lower support end pivoted on the bottom frame, and a driving member The first upper support end of the two upper sliding seats is slidably disposed along the lateral displacement of the table; the second support frame is pivotally connected to the first support frame and has a pivoted on the bottom surface of the table The second upper supporting end and a second lower supporting end are slidably arranged on the second lower supporting end of the two sliding seats. The height-adjustable table structure according to claim 2, which further comprises at least one first spring, the first spring having a first stretched end provided on the first upper supporting end of the first supporting frame And a second stretched end fixedly arranged on the bottom surface of the table board. The height-adjustable table structure according to claim 1, wherein the driving group of the adjustment unit has a first part connected to the adjustment member, a second part pivoted on the bottom surface of the table, and a seat A third part between the first part and the second part, and the third part is eccentrically connected to the first rod part of the transmission rod. The height-adjustable table structure according to claim 4, wherein the first rod portion of the transmission rod is provided with a front eccentric block, the front eccentric block has a front eccentric portion, and the third part of the adjusting member is connected to the front Eccentric part. The height-adjustable table structure according to claim 2, which further includes a second spring having a first reset end fixed on the limit seat and an eccentrically fixed The second return end of the transmission rod; when the driving group drives the transmission rod to pivot forward by an angle, the second spring is stretched to provide the return force to the transmission rod. The height-adjustable table structure according to claim 6, wherein the transmission rod is provided with a middle eccentric block, the middle eccentric block has a middle eccentric part, and the second return end of the second spring is fixedly arranged on the In the eccentric part. The height-adjustable table structure according to claim 2, wherein the at least one locking member has a first end eccentrically pivoted on the second rod portion, and a first end inserted into or separated from the positioning groove Two ends. The height-adjustable table structure according to claim 8, wherein the second rod portion of the transmission rod is provided with a rear eccentric block, the rear eccentric block has a rear eccentric portion, and the first end portion of the at least one locking member The pivot is located at the rear eccentric part. The height-adjustable table structure according to claim 1, wherein the driving group of the adjustment unit includes a vertical rod and a horizontal rod, and the vertical rod has a first vertical rod portion connected to the adjusting member, and a pivot The second vertical rod part is arranged on the table top, the horizontal rod has a first horizontal rod part pivoted on the vertical rod and a second horizontal rod part, and the second horizontal rod part is eccentrically connected to the first horizontal rod part of the transmission rod. One pole. The height-adjustable table structure according to claim 10, wherein the first rod portion of the transmission rod is provided with a front eccentric block, the front eccentric block has a front eccentric portion, and the second cross rod portion of the cross rod is connected The front eccentric part. The height-adjustable table structure according to claim 2, which further includes at least one second spring, the limit seat has an accommodating groove, and the second rod portion of the transmission rod and the at least one locking member are accommodating Is placed in the accommodating groove, and the at least one locking member has a first end eccentrically pivoted on the second rod, and a second end inserted into or separated from the positioning groove, the at least one first The two springs have a first reset end fixed on the wall of the accommodating groove, and a second reset end that pushes against the first end of the locking member. When the drive When the group drives the transmission rod to pivot forward by an angle, the second spring is compressed to provide the restoring force to the transmission rod. The height-adjustable table structure according to claim 12, wherein the second rod portion of the transmission rod is provided with a rear eccentric block, the rear eccentric block has a rear eccentric portion, and the first end portion of the at least one locking member The pivot is located at the rear eccentric part.

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