CN110430785B

CN110430785B - Table with adjustable stability

Info

Publication number: CN110430785B
Application number: CN201880014441.3A
Authority: CN
Inventors: 方亚琴
Original assignee: Shenzhen Zhiyuan Technology Co ltd
Current assignee: Shenzhen Zhiyuan Technology Co ltd
Priority date: 2017-07-04
Filing date: 2018-02-07
Publication date: 2021-04-20
Anticipated expiration: 2038-02-07
Also published as: CN109106107B; CN109106107A; CN107296408A; CN107296408B; CN110430785A; WO2019007059A1

Abstract

A bus capable of preventing collision damage comprises a bus body (1), a driving mechanism (2), an anti-collision mechanism (74), a transmission mechanism (3), an upper bus cavity (5), a lower bus cavity (6), a first guide groove (4) and a first rack (33). People grab the handle (13) when taking the bus, when the bus brakes suddenly or starts suddenly, people can suddenly incline forwards or backwards due to inertia force, meanwhile, the first weight (11) of the driving mechanism can move relative to the lower end surface of the lower cavity of the bus under the action of inertia, and the second weight (28) of the driving mechanism moves in the opposite direction relative to the first weight through the movement of the first weight and the transmission of the driving mechanism; the second weight block moves to drive a sliding rod (10) of the transmission mechanism to move towards the direction opposite to the direction of the second weight block movement through a steel rope (8); the sliding rod moves to give a passenger a force opposite to the inertia force applied to the passenger through the handle; through the acting force, the passengers can keep balance when the bus brakes suddenly or starts suddenly.

Description

Table with adjustable stability

Technical Field

The invention belongs to the technical field of tables, and particularly relates to a table with adjustable stability.

Background

In the prior art, the table top and the table legs are usually fixedly arranged.

Technical problem

The desktop and the desk legs of the currently used desk are usually fixedly arranged; when the desk legs are worn after long-time use, gaps can be formed between the desk legs and the ground; the desk is unstable; and when the ground on which the table is placed collapses; the table legs can also be laid down; the table is out of balance; affecting the normal use of people.

Technical scheme of the invention

In order to solve the defects in the prior art, the invention discloses a table with adjustable stability, which is realized by adopting the following technical scheme.

A desk capable of automatically adjusting stability is characterized in that: the table comprises table legs, a driving device, a circular hole, a table plate, a first square notch, a second square hole, a limiting block, a second spring, a moving plate, a connecting shell, a rotating shaft support, a first gear and a rack, wherein four table legs are arranged in four corners of the lower side of the table plate; the lower end surfaces of the four table legs are respectively provided with a circular hole; three groups of second square holes are uniformly formed in the circumferential direction of the inner walls of the four circular holes; each second square hole in the three groups of second square holes is provided with a limiting block; a second spring is arranged between each limiting block and the corresponding second square hole; the inner walls of the lower sides of the four circular holes are provided with a first square notch; a driving device is arranged in the circular holes on the lower end surfaces of the four table legs; a connecting shell is respectively arranged between two adjacent desk legs; the mounting structures in the four connecting shells are completely the same; a moving plate is respectively arranged between two adjacent driving devices; the two racks are respectively arranged at the upper ends of the two sides of the movable plate; the rotating shaft is supported and installed in the connecting shell through the rotating shaft; the two first gears are respectively arranged on two sides of the rotating shaft; the two first gears are respectively meshed with the two racks.

The driving device comprises an intermediate pipe, a cylindrical heavy shell, a hydraulic damping shell, a limiting notch, a sliding groove, a third spring, an avoiding notch, a clamping block groove, a trigger rod, a fourth spring, a sliding block, a guide strip, a pushing block, a guide groove, a hydraulic annular plate, a hydraulic pull ring, a first hydraulic hole, a guide groove and a second hydraulic hole, wherein the upper end of the intermediate pipe is connected with the upper end face of the circular hole through the third spring; three clamping block grooves are uniformly formed in the circumferential direction on the outer circular surface of the middle pipe; two avoidance notches are formed in the outer circular surface of the middle pipe and are located on the lower sides of the three fixture block grooves, and an included angle of ninety degrees is formed between the two avoidance notches; the two avoiding gaps are respectively matched with the two corresponding moving plates; the three clamping blocks are respectively arranged in the three clamping block grooves through the matching of corresponding pins and pin holes on the clamping blocks; a plate spring is arranged between the side surfaces of the three clamping blocks and the inner circular surface of the middle pipe; the three clamping blocks are respectively matched with the three groups of limiting blocks; the cylindrical heavy shell is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; a sliding groove is formed on the outer circular surface of one end of the large-diameter part on the cylindrical heavy shell; two guide grooves are symmetrically formed in the two sides of the sliding groove; a triangular limiting notch is formed on the outer circular surface of one end of the cylindrical heavy shell, which is provided with the sliding groove at the large-diameter part; the upper end surface of the cylindrical heavy shell is connected with the upper end surface of the circular hole through a fourth spring; the large-diameter part of the cylindrical heavy shell is matched with the three clamping blocks; the sliding block is provided with an arc surface; the sliding block is provided with a guide groove; two guide blocks are symmetrically arranged on two sides of the sliding block; the sliding block is arranged in the sliding groove through the matching of the two guide blocks and the two guide grooves; the upper end of the trigger rod is arranged on the upper end surface of the circular hole; the guide bar is arranged on the trigger rod; the guide strip is matched with the guide groove; the pushing block is arranged at the lower end of the trigger rod; the pushing block is matched with the arc surface on the sliding block.

Two ends of the moving plate respectively penetrate through the corresponding avoidance gap and the first square gap to be connected with the corresponding cylindrical heavy shell.

As a further improvement of the technology, the hydraulic damping shell is mounted on the inner wall of the upper end of the circular hole; the upper end surface and the lower end surface of the hydraulic damping shell are respectively provided with a first hydraulic hole and a second hydraulic hole; the hydraulic ring plate is arranged on the inner side of the hydraulic damping shell; one end of the hydraulic pull ring is arranged on the hydraulic ring plate; the other end of the hydraulic pull ring is connected with the middle pipe; the diameter of the first hydraulic hole is three times that of the second hydraulic hole; the two first hydraulic holes are connected through a hydraulic pipe; the two second hydraulic holes are connected through a hydraulic pipe.

As a further improvement of the technology, the three sets of second square holes and the three sets of limiting blocks are replaced by four sets or five sets; the number of the replacement schemes of the three clamping block grooves and the three clamping blocks is four or five; the number of each group of second square holes and limiting blocks in the three groups of second square holes and the three groups of limiting blocks is five.

As a further improvement of the technology, the width of the fixture block is the same as the distance between two adjacent limiting blocks.

As a further improvement of the present technology, the third spring is a compression spring; the fourth spring is an extension spring.

As a further improvement of the technology, the lower side of the fixture block is flush with the upper side of the limiting block; the stability of the distance of the desk in the initial state and the locking state is ensured; the accuracy is improved.

In the invention, a connecting shell is respectively arranged between two adjacent table legs; the mounting structures in the four connecting shells are completely the same; a moving plate is respectively arranged between two adjacent driving devices; the two racks are respectively arranged at the upper ends of the two sides of the movable plate; the rotating shaft is supported and installed in the connecting shell through the rotating shaft; the two first gears are respectively arranged on two sides of the rotating shaft; the two first gears are respectively meshed with the two racks; two ends of the moving plate respectively penetrate through the corresponding avoidance notches and the first square notches to be connected with the corresponding cylindrical heavy shell. When the cylindrical heavy shell moves downwards, the corresponding moving plate is driven to move downwards; the moving plate moves downwards to drive the corresponding rack to move downwards; the rack moves downwards to drive the corresponding first gear to rotate; the first gear rotates to drive the corresponding rotating shaft to rotate; the rotating shaft rotates to drive the other first gear arranged on the rotating shaft to rotate; the other first gear rotates to drive the corresponding rack to move; the rack moves to drive the moving plate to move; the moving plate moves to drive the cylindrical heavy shell connected with the moving plate to move downwards; interference on other cylindrical heavy shells can be prevented when one cylindrical heavy shell moves downwards through the matching of the rack, the moving plate, the first gear and the rotating shaft; and the other cylindrical heavy shells can be used for preventing one, two or three of the four table legs from influencing the action of the driving device when being lifted.

The upper end of the middle pipe is connected with the upper end face of the circular hole through a third spring; three clamping block grooves are uniformly formed in the circumferential direction on the outer circular surface of the middle pipe; the three clamping blocks are respectively arranged in the three clamping block grooves through the matching of corresponding pins and pin holes on the clamping blocks; the three clamping blocks are respectively matched with the three groups of limiting blocks; the cylindrical heavy shell is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; the upper end surface of the cylindrical heavy shell is connected with the upper end surface of the circular hole through a fourth spring; the large-diameter part of the cylindrical heavy shell is matched with the three clamping blocks; when the lower couch on the ground where the four table legs are located or the table legs in the four table legs are worn; the corresponding middle tube in the table leg can move downwards under the action of the third spring; the three corresponding clamping blocks are driven to move downwards while moving; the three clamping blocks are matched with the large-diameter part of the cylindrical heavy shell; therefore, the three limiting blocks can be extruded by the three clamping blocks in the moving process, so that the three limiting blocks move towards the second square hole; after the middle pipe moves for a certain distance; the upper end surfaces of the three clamping blocks can move to the lower sides of the three limiting blocks; the three limiting blocks can move out of the second square hole under the action of the second spring; the middle pipe in the table legs can extrude the middle pipe upwards after the ground is contacted with the middle pipe; causing the intermediate tube to move upwardly; the middle pipe moves upwards to drive the clamping block to move upwards; the upper end surface of the fixture block can contact with the adjacent limiting block in the moving process; the limiting block has a limiting effect on the clamping block; so that the limiting block has a limiting effect on the middle pipe; further, the gap between the ground and the table legs is compensated by adjusting the middle pipe; thereby putting the table in a balanced state.

In the invention, a plate spring is arranged between the side surfaces of the three clamping blocks and the inner circular surface of the middle pipe; the cylindrical heavy shell is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; a sliding groove is formed on the outer circular surface of one end of the large-diameter part on the cylindrical heavy shell; two guide grooves are symmetrically formed in the two sides of the sliding groove; a triangular limiting notch is formed on the outer circular surface of one end of the cylindrical heavy shell, which is provided with the sliding groove at the large-diameter part; the upper end surface of the cylindrical heavy shell is connected with the upper end surface of the circular hole through a fourth spring; the large-diameter part of the cylindrical heavy shell is matched with the three clamping blocks; the sliding block is provided with an arc surface; the sliding block is provided with a guide groove; two guide blocks are symmetrically arranged on two sides of the sliding block; the sliding block is arranged in the sliding groove through the matching of the two guide blocks and the two guide grooves; the upper end of the trigger rod is arranged on the upper end surface of the circular hole; the guide bar is arranged on the trigger rod; the guide strip is matched with the guide groove; the pushing block is arranged at the lower end of the trigger rod; the pushing block is matched with the arc surface on the sliding block; when people lift the table to move; under the action of gravity of the four cylindrical weight blocks, the four cylindrical weight blocks are separated from the limit of the limiting rod and slide downwards; the sliding block is driven to move downwards by the cylindrical weight block in the sliding process of the cylindrical weight block; meanwhile, when the fixture block moves to the small-diameter part on the cylindrical heavy shell in the moving process; the clamping block can rotate under the action of the plate spring; the limiting function of the limiting block is separated; meanwhile, the sliding block is contacted with the pushing block in the sliding process of the cylindrical weight block; the pushing block can extrude the sliding block; moving the slide block to the outside of the cylindrical weight; when people move the desk to a destination to put down the desk; the cylindrical weight can be contacted with the ground; in the contact process, the ground pushes the cylindrical weight block to move upwards; the cylindrical weight block moves upwards to drive the sliding block to move upwards; at the moment, the fixture block is separated from the limiting block; therefore, the sliding block moves upwards to drive the clamping block to move upwards; when the intermediate pipe is to be in contact with the ground block during movement; the sliding block gradually moves towards the inner side of the cylindrical weight block under the action of the guide strip; when the sliding block is just moved to the inner side of the cylindrical weight block; the fixture block is positioned on the upper side of the limiting block at the uppermost end, and the middle shell moves downwards under the action of the third spring; when the lower end of the clamping block is just contacted with the upper end of the limiting block at the uppermost end in the upward moving process of the cylindrical weight block; the lower end of the middle shell is just flush with the ground; the large-diameter part of the cylindrical weight can be contacted with the clamping block, so that the clamping block is restored to the original position.

In the invention, a hydraulic damping shell is arranged on the inner wall of the upper end of a circular hole; the upper end surface and the lower end surface of the hydraulic damping shell are respectively provided with a first hydraulic hole and a second hydraulic hole; the hydraulic ring plate is arranged on the inner side of the hydraulic damping shell; one end of the hydraulic pull ring is arranged on the hydraulic ring plate; the other end of the hydraulic pull ring is connected with the middle pipe; the diameter of the first hydraulic hole is three times that of the second hydraulic hole; the two first hydraulic holes are connected through a hydraulic pipe; the two second hydraulic holes are connected through a hydraulic pipe. When the middle pipe moves downwards, the liquid in the hydraulic damping shell flows into the second hydraulic hole on the lower side of the hydraulic damping shell and flows out; flows in through the hydraulic pipe and a second hydraulic hole on the upper side of the hydraulic damping shell; when the middle pipe moves upwards, the liquid in the hydraulic damping shell flows into a first hydraulic hole on the upper side of the hydraulic damping shell and flows out; flows in through the hydraulic pipe and the first hydraulic hole on the lower side of the hydraulic damping shell. The intermediate pipe is damped by the liquid flow inside the hydraulic damping shell.

When people use the table designed by the invention; when the ground where the table legs are located collapses in the use process; the corresponding middle tube in the table leg can move downwards under the action of the third spring; the three corresponding clamping blocks are driven to move downwards while moving; the three clamping blocks are matched with the large-diameter part of the cylindrical heavy shell; therefore, the three limiting blocks can be extruded by the three clamping blocks in the moving process, so that the three limiting blocks move towards the second square hole; after the middle pipe moves for a certain distance; the upper end surfaces of the three clamping blocks can move to the lower sides of the three limiting blocks; the three limiting blocks can move out of the second square hole under the action of the second spring; the middle pipe in the table legs can extrude the middle pipe upwards after the ground is contacted with the middle pipe; causing the intermediate tube to move upwardly; the middle pipe moves upwards to drive the clamping block to move upwards; the upper end surface of the fixture block can contact with the adjacent limiting block in the moving process; the limiting block has a limiting effect on the clamping block; so that the limiting block has a limiting effect on the middle pipe; further, the gap between the ground and the table legs is compensated by adjusting the middle pipe; thereby putting the table in a balanced state.

Advantageous effects

The invention has the following main beneficial technical effects: compared with the traditional table technology, the table designed by the invention can automatically adjust the balance degree of the table through the height of the ground and the abrasion condition of the table legs; the stability can be adjusted.

Drawings

FIG. 1 is a schematic external view of an integral part; figure 2 is a schematic view of the table leg structure; FIG. 3 is a schematic view of the internal structure of a circular hole; FIG. 4 is a schematic plan view of the driving device; FIG. 5 is a schematic view of the driving device; FIG. 6 is a schematic view of a circular hole configuration; FIG. 7 is a schematic view of a stop block installation; FIG. 8 is a schematic view of a cartridge installation; FIG. 9 is a schematic view of the intermediate tube structure; FIG. 10 is a schematic view of the internal structure of the intermediate tube; FIG. 11 is a schematic view of a cylindrical heavy shell construction; FIG. 12 is a slider installation diagram; FIG. 13 is a schematic view of the guide strip installation; FIG. 14 is a schematic view of a slider configuration; FIG. 15 is a schematic view of the internal structure of the hydraulic damping housing; FIG. 16 is a schematic diagram of the working principle of the hydraulic damping shell; FIG. 17 is a schematic view of the automatic adjustment of the table; figure 18 is a schematic view of the working principle of the table; FIG. 19 is a moving plate mounting schematic; FIG. 20 is a schematic view of the internal structure of the connecting shell; FIG. 21 is a first gear mounting schematic; FIG. 22 is a rack mount schematic; fig. 23 is a schematic view of the installation of the rotating shaft.

Number designation in the figures: 1. desk legs; 2. a table plate; 3. moving the plate; 4. a connecting shell; 5. a rotating shaft; 8. the rotating shaft is supported; 9. a first gear; 10. an intermediate pipe; 11. a circular hole; 12. a cylindrical heavy shell; 14. a hydraulic damping housing; 15. a first square notch; 16. a second square hole; 17. a rack; 18. a sliding groove; 19. a limiting block; 20. a second spring; 21. a third spring; 22. avoiding the notch; 23. a clamping block; 24. a block slot; 25. a trigger lever; 26. a slider; 27. a guide strip; 28. a pushing block; 29. a guide block; 30. a guide groove; 31. a hydraulic ring plate; 32. a hydraulic pull ring; 33. a first hydraulic bore; 34. a second hydraulic port; 35. a drive device; 36. a fourth spring; 37. a guide groove; 38. a leaf spring.

Best mode for carrying out the invention

As shown in fig. 1, the table comprises table legs 1, a driving device 35, a circular hole 11, a table plate 2, a first square notch 15, a second square hole 16, a limiting block 19, a second spring 20, a moving plate 3, a connecting shell 4, a rotating shaft 5, a rotating shaft support 8, a first gear 9 and a rack 17, wherein four table legs 1 are installed in four corners of the lower side of the table plate 2; as shown in fig. 6, the lower end surfaces of the four table legs 1 are all provided with a circular hole 11; three groups of second square holes 16 are uniformly formed in the circumferential direction of the inner walls of the four circular holes 11; as shown in fig. 7, each second square hole 16 of the three groups of second square holes 16 is provided with a limiting block 19; a second spring 20 is arranged between each limiting block 19 and the corresponding second square hole 16; the inner walls of the lower sides of the four circular holes 11 are provided with a first square notch 15; as shown in fig. 2, a driving device 35 is installed in each of the circular holes 11 formed in the lower end surfaces of the four table legs 1; as shown in fig. 20, a connecting shell 4 is installed between two adjacent table legs 1; the mounting structures in the four connecting shells 4 are completely the same; as shown in fig. 19, a moving plate 3 is installed between two adjacent driving devices 35; as shown in fig. 21, two racks 17 are respectively installed at the upper ends of both sides of the moving plate 3; as shown in fig. 23, the rotating shaft 5 is installed in the coupling housing 4 through the rotating shaft support 8; as shown in fig. 22, two first gears 9 are installed on both sides of the rotating shaft 5, respectively; the two first gears 9 are respectively engaged with the two racks 17.

As shown in fig. 3, the driving device 35 includes a middle tube 10, a cylindrical heavy shell 12, a hydraulic damping shell 14, a limiting notch, a sliding groove 18, a third spring 21, an avoiding notch 22, a latch 23, a latch groove 24, a trigger lever 25, a fourth spring 36, a sliding block 26, a guide strip 27, a pushing block 28, a guide block 29, a guide groove 30, a hydraulic ring plate 31, a hydraulic pull ring 32, a first hydraulic hole 33, a guide groove 37, and a second hydraulic hole 34, wherein as shown in fig. 8 and 5, the upper end of the middle tube 10 is connected with the upper end face of the circular hole 11 through the third spring 21; three clamping block grooves 24 are uniformly formed in the circumferential direction on the outer circular surface of the middle pipe 10; as shown in fig. 9, two avoidance gaps 22 are formed on the outer circumferential surface of the middle pipe 10, the two avoidance gaps 22 are located at the lower sides of the three block grooves 24, and an included angle of ninety degrees is formed between the two avoidance gaps 22; the two avoidance notches 22 are respectively matched with the two corresponding moving plates 3; as shown in fig. 10, the three latch blocks 23 are respectively installed in the three latch block grooves 24 through the matching of the corresponding pins and the pin holes on the latch blocks 23; a plate spring 38 is arranged between the side surfaces of the three clamping blocks 23 and the inner circular surface of the middle pipe 10; the three clamping blocks 23 are respectively matched with the three groups of limiting blocks 19; the cylindrical heavy shell 12 is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; as shown in fig. 11, a sliding groove 18 is formed on the outer circumferential surface of one end of the large diameter portion of the cylindrical heavy shell 12; two guide grooves 30 are symmetrically arranged on two sides of the sliding groove 18; as shown in fig. 4, the upper end surface of the cylindrical heavy shell 12 is connected with the upper end surface of the circular hole 11 through a fourth spring 36; the large-diameter part of the cylindrical heavy shell 12 is matched with the three clamping blocks 23; the sliding block 26 is provided with a circular arc surface; slide block 26 has guide groove 37; as shown in fig. 14, two guide shoes 29 are symmetrically mounted on both sides of the slide block 26; as shown in fig. 12, the slide block 26 is mounted in the slide groove 18 by the cooperation of the two guide blocks 29 and the two guide grooves 30; the upper end of the trigger rod 25 is arranged on the upper end surface of the circular hole 11; as shown in fig. 13, the guide bar 27 is mounted on the trigger lever 25; the guide strip 27 cooperates with the guide groove 37; the pushing block 28 is installed at the lower end of the trigger lever 25; the pusher block 28 engages a circular arc surface on the slide block 26.

As shown in fig. 19, both ends of the moving plate 3 pass through the corresponding relief notch 22 and the first square notch 15, respectively, and are connected to the corresponding heavy cylindrical shell 12.

As shown in fig. 15, the above-mentioned hydraulic damping housing 14 is mounted on the inner wall of the upper end of the circular hole 11; a first hydraulic hole 33 and a second hydraulic hole 34 are respectively formed on the upper end surface and the lower end surface of the hydraulic damping shell 14; the hydraulic ring plate 31 is installed inside the hydraulic damping shell 14; one end of the hydraulic pull ring 32 is mounted on the hydraulic ring plate 31; the other end of the hydraulic pull ring 32 is connected with the middle pipe 10; the diameter of the first hydraulic hole 33 is three times the diameter of the second hydraulic hole 34; the two first hydraulic holes 33 are connected by a hydraulic pipe; the two second hydraulic holes 34 are connected by a hydraulic pipe.

The above alternative schemes as the three groups of second square holes 16 and the three groups of limiting blocks 19 are four groups or five groups; the alternatives of the three fixture block grooves 24 and the three fixture blocks 23 are four or five; the number of each group of second square holes 16 and limiting blocks 19 in the three groups of second square holes 16 and the three groups of limiting blocks 19 is five.

The width of the fixture block is the same as the distance between two adjacent limiting blocks 19.

The third spring 21 is a compression spring; the fourth spring 36 is an extension spring.

The lower side of the clamping block is flush with the upper side of the limiting block 19; the stability of the distance of the desk in the initial state and the locking state is ensured; the accuracy is improved.

In summary, the following steps: the table designed by the invention can automatically adjust the balance degree of the table through the height of the ground and the abrasion condition of the table legs 1.

In the invention, a connecting shell 4 is respectively arranged between two adjacent desk legs 1; the mounting structures in the four connecting shells 4 are completely the same; a moving plate 3 is respectively arranged between two adjacent driving devices 35; two racks 17 are respectively arranged at the upper ends of two sides of the moving plate 3; the rotating shaft 5 is arranged in the connecting shell 4 through a rotating shaft support 8; two first gears 9 are respectively arranged at two sides of the rotating shaft 5; the two first gears 9 are respectively meshed with the two racks 17; two ends of the moving plate 3 respectively penetrate through the corresponding avoidance gap 22 and the first square gap 15 to be connected with the corresponding cylindrical heavy shell 12. When the heavy cylindrical shell 12 moves downwards, the corresponding moving plate 3 is driven to move downwards; the moving plate 3 moves downwards to drive the corresponding rack 17 to move downwards; the rack 17 moves downwards to drive the corresponding first gear 9 to rotate; the first gear 9 rotates to drive the corresponding rotating shaft 5 to rotate; the rotating shaft 5 rotates to drive the other first gear 9 arranged on the rotating shaft to rotate; the other first gear 9 rotates to drive the corresponding rack 17 to move; the rack 17 moves to drive the moving plate 3 to move; the moving plate 3 moves to drive the cylindrical heavy shell 12 connected with the moving plate to move downwards; the rack 17, the moving plate 3, the first gear 9 and the rotating shaft 5 are matched to prevent one of the cylindrical heavy shells 12 from interfering with the other cylindrical heavy shells 12 when moving downwards; while the other cylindrical heavy housings 12 may prevent one, two or three of the four legs 1 from affecting the function of the driving means 35 when they are lifted.

In the invention, the upper end of the middle tube 10 is connected with the upper end surface of the circular hole 11 through a third spring 21; three clamping block grooves 24 are uniformly formed in the circumferential direction on the outer circular surface of the middle pipe 10; the three fixture blocks 23 are respectively installed in the three fixture block grooves 24 through the matching of corresponding pins and pin holes on the fixture blocks 23; the three clamping blocks 23 are respectively matched with the three groups of limiting blocks 19; the cylindrical heavy shell 12 is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; the upper end surface of the cylindrical heavy shell 12 is connected with the upper end surface of the circular hole 11 through a fourth spring 36; the large-diameter part of the cylindrical heavy shell 12 is matched with the three clamping blocks 23; when the lower couch of the ground where the four table legs 1 are located or the table legs 1 in the four table legs 1 are worn; the corresponding middle tube 10 in the table leg 1 will move downwards under the action of the third spring 21; the three corresponding fixture blocks 23 are driven to move downwards while moving; since the three latch blocks 23 are engaged with the large-diameter portion of the cylindrical heavy shell 12; therefore, the three limit blocks 19 can be extruded by the three limit blocks in the moving process, so that the three limit blocks 19 move into the second square hole 16; after the middle tube 10 moves a distance; the upper end surfaces of the three clamping blocks 23 move to the lower sides of the three limiting blocks 19; the three limit blocks 19 can move out of the second square hole 16 under the action of the second spring 20; and the middle tube 10 will press the middle tube 10 upwards after the ground contacts the middle tube 10 in the table leg 1; causing the intermediate tube 10 to move upwards; the middle tube 10 moves upwards to drive the clamping block 23 to move upwards; the upper end surface of the fixture block 23 contacts with the adjacent limiting block 19 in the moving process; the limiting block 19 can limit the clamping block 23; so that the limiting block 19 can limit the middle pipe 10; further, the gap between the ground and the table leg 1 is compensated by adjusting the middle tube 10; thereby putting the table in a balanced state.

In the invention, a plate spring 38 is arranged between the side surface of each of the three clamping blocks 23 and the inner circular surface of the middle pipe 10; the cylindrical heavy shell 12 is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; a sliding groove 18 is formed on the outer circular surface of one end of the large-diameter part on the cylindrical heavy shell 12; two guide grooves 30 are symmetrically arranged on two sides of the sliding groove 18; a triangular limiting notch is formed on the outer circular surface of one end of the cylindrical heavy shell 12, which is provided with the sliding groove 18 at the large-diameter part; the upper end surface of the cylindrical heavy shell 12 is connected with the upper end surface of the circular hole 11 through a fourth spring 36; the large-diameter part of the cylindrical heavy shell 12 is matched with the three clamping blocks 23; the sliding block 26 is provided with a circular arc surface; slide block 26 has guide groove 37; two guide blocks 29 are symmetrically installed on both sides of the slide block 26; the sliding block 26 is mounted in the sliding groove 18 by the cooperation of the two guide blocks 29 and the two guide grooves 30; the upper end of the trigger rod 25 is arranged on the upper end surface of the circular hole 11; the guide strip 27 is mounted on the trigger lever 25; the guide strip 27 cooperates with the guide groove 37; the pushing block 28 is installed at the lower end of the trigger lever 25; the pushing block 28 is matched with the arc surface on the sliding block 26; as shown in fig. 18a, when a person is moving while lifting the table; under the action of gravity of the four cylindrical weight blocks, the four cylindrical weight blocks are separated from the limit of the limiting rod and slide downwards; the sliding block 26 is driven by the cylindrical weight to move downwards in the process of sliding the cylindrical weight; meanwhile, when the fixture block 23 moves to the small-diameter part on the cylindrical heavy shell 12 in the moving process; the latch 23 rotates under the action of the plate spring 38; the limiting function of the limiting block 19 is separated; meanwhile, the sliding block 26 is contacted with the pushing block 28 in the process of sliding the cylindrical weight; pushing block 28 will press slide block 26; as shown in fig. 18b, so that the slide block 26 moves outside the cylindrical weight; when people move the desk to a destination to put down the desk; the cylindrical weight can be contacted with the ground; in the contact process, the ground pushes the cylindrical weight block to move upwards; the cylindrical weight moves upwards to drive the sliding block 26 to move upwards; because the clamping block 23 and the limiting block 19 are separated at the moment; as shown in fig. 18c, the upward movement of the slide block 26 will drive the latch 23 to move upward; when the intermediate pipe 10 is to be brought into contact with the ground piece during the movement; the sliding block 26 gradually moves towards the inner side of the cylindrical weight under the action of the guide strip 27; when the slide block 26 is also moved just inside the cylindrical weight; the fixture block is positioned on the upper side of the limiting block 19 at the uppermost end, and the middle shell moves downwards under the action of the third spring 21; when the lower end of the clamping block is just contacted with the upper end of the limiting block 19 at the uppermost end in the upward movement process of the cylindrical weight block; as shown in fig. 18d, the lower end of the middle shell is just flush with the ground; and the large diameter portion of the cylindrical weight comes into contact with the latch 23 to restore the latch 23 to its original position.

The hydraulic damping shell 14 is arranged on the inner wall of the upper end of the circular hole 11; a first hydraulic hole 33 and a second hydraulic hole 34 are respectively formed on the upper end surface and the lower end surface of the hydraulic damping shell 14; the hydraulic ring plate 31 is installed inside the hydraulic damping shell 14; one end of the hydraulic pull ring 32 is mounted on the hydraulic ring plate 31; the other end of the hydraulic pull ring 32 is connected with the middle pipe 10; the diameter of the first hydraulic hole 33 is three times the diameter of the second hydraulic hole 34; the two first hydraulic holes 33 are connected by a hydraulic pipe; the two second hydraulic holes 34 are connected by a hydraulic pipe. As shown in fig. 16a, when the intermediate pipe 10 moves downward, the fluid in the hydraulic damping case 14 flows in through the second hydraulic holes 34 on the lower side of the hydraulic damping case 14 and flows out; flows in through the hydraulic pipe and the second hydraulic hole 34 on the upper side of the hydraulic damping shell 14; as shown in fig. 16b, when the intermediate pipe 10 moves upward, the fluid in the hydraulic damping case 14 flows in and out through the first hydraulic hole 33 on the upper side of the hydraulic damping case 14; and flows in through the hydraulic pipe and the first hydraulic hole 33 on the lower side of the hydraulic damping case 14. The intermediate pipe 10 is damped by the flow of liquid inside the hydraulic damping housing 14.

Detailed description of the invention

The specific implementation mode is as follows: when people use the table designed by the invention; when the ground where the table legs 1 are located collapses in the use process; as shown in figure 17a, the corresponding middle tube 10 of the table leg 1 is moved downwards by the third spring 21; the three corresponding fixture blocks 23 are driven to move downwards while moving; since the three latch blocks 23 are engaged with the large-diameter portion of the cylindrical heavy shell 12; therefore, the three limit blocks 19 can be extruded by the three limit blocks in the moving process, so that the three limit blocks 19 move into the second square hole 16; after the middle tube 10 moves a distance; the upper end surfaces of the three clamping blocks 23 move to the lower sides of the three limiting blocks 19; the three limit blocks 19 can move out of the second square hole 16 under the action of the second spring 20; as shown in fig. 17b, the middle tube 10 of the table leg 1 presses the middle tube 10 upward after the ground contacts the middle tube 10; causing the intermediate tube 10 to move upwards; the middle tube 10 moves upwards to drive the clamping block 23 to move upwards; the upper end surface of the fixture block 23 contacts with the adjacent limiting block 19 in the moving process; the limiting block 19 can limit the clamping block 23; so that the limiting block 19 can limit the middle pipe 10; further, the gap between the ground and the table leg 1 is compensated by adjusting the middle tube 10; thereby putting the table in a balanced state.

Industrial applicability

The present invention has been successfully developed and used. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A table with adjustable stability is characterized in that: the table comprises table legs, a driving device, a circular hole, a table plate, a first square notch, a second square hole, a limiting block, a second spring, a moving plate, a connecting shell, a rotating shaft support, a first gear and a rack, wherein four table legs are arranged in four corners of the lower side of the table plate; the lower end surfaces of the four table legs are respectively provided with a circular hole; three groups of second square holes are uniformly formed in the circumferential direction of the inner walls of the four circular holes; each second square hole in the three groups of second square holes is provided with a limiting block; a second spring is arranged between each limiting block and the corresponding second square hole; the inner walls of the lower sides of the four circular holes are provided with a first square notch; a driving device is arranged in the circular holes on the lower end surfaces of the four table legs; a connecting shell is respectively arranged between two adjacent desk legs; the mounting structures in the four connecting shells are completely the same; a moving plate is respectively arranged between two adjacent driving devices; the two racks are respectively arranged at the upper ends of the two sides of the movable plate; the rotating shaft is supported and installed in the connecting shell through the rotating shaft; the two first gears are respectively arranged on two sides of the rotating shaft; the two first gears are respectively meshed with the two racks;

the driving device comprises an intermediate pipe, a cylindrical heavy shell, a hydraulic damping shell, a limiting notch, a sliding groove, a third spring, an avoiding notch, a clamping block groove, a trigger rod, a fourth spring, a sliding block, a guide strip, a pushing block, a guide groove, a hydraulic annular plate, a hydraulic pull ring, a first hydraulic hole, a guide groove and a second hydraulic hole, wherein the upper end of the intermediate pipe is connected with the upper end face of the circular hole through the third spring; three clamping block grooves are uniformly formed in the circumferential direction on the outer circular surface of the middle pipe; two avoidance notches are formed in the outer circular surface of the middle pipe and are located on the lower sides of the three fixture block grooves, and an included angle of ninety degrees is formed between the two avoidance notches; the two avoiding gaps are respectively matched with the two corresponding moving plates; the three clamping blocks are respectively arranged in the three clamping block grooves through the matching of corresponding pins and pin holes on the clamping blocks; a plate spring is arranged between the side surfaces of the three clamping blocks and the inner circular surface of the middle pipe; the three clamping blocks are respectively matched with the three groups of limiting blocks; the cylindrical heavy shell is divided into two parts with different diameters, and the large-diameter part and the small-diameter part are in uniform transition; a sliding groove is formed on the outer circular surface of one end of the large-diameter part on the cylindrical heavy shell; two guide grooves are symmetrically formed in the two sides of the sliding groove; a triangular limiting notch is formed on the outer circular surface of one end of the cylindrical heavy shell, which is provided with the sliding groove at the large-diameter part; the upper end surface of the cylindrical heavy shell is connected with the upper end surface of the circular hole through a fourth spring; the large-diameter part of the cylindrical heavy shell is matched with the three clamping blocks; the sliding block is provided with an arc surface; the sliding block is provided with a guide groove; two guide blocks are symmetrically arranged on two sides of the sliding block; the sliding block is arranged in the sliding groove through the matching of the two guide blocks and the two guide grooves; the upper end of the trigger rod is arranged on the upper end surface of the circular hole; the guide bar is arranged on the trigger rod; the guide strip is matched with the guide groove; the pushing block is arranged at the lower end of the trigger rod; the pushing block is matched with the arc surface on the sliding block;

two ends of the moving plate respectively penetrate through the corresponding avoidance notches and the first square notches to be connected with the corresponding cylindrical heavy shell;

the hydraulic damping shell is arranged on the inner wall of the upper end of the circular hole; the upper end surface and the lower end surface of the hydraulic damping shell are respectively provided with a first hydraulic hole and a second hydraulic hole; the hydraulic ring plate is arranged on the inner side of the hydraulic damping shell; one end of the hydraulic pull ring is arranged on the hydraulic ring plate; the other end of the hydraulic pull ring is connected with the middle pipe; the diameter of the first hydraulic hole is three times that of the second hydraulic hole; the two first hydraulic holes are connected through a hydraulic pipe; the two second hydraulic holes are connected through a hydraulic pipe;

the three groups of second square holes and the three groups of limiting blocks are replaced by four groups or five groups; the number of the replacement schemes of the three clamping block grooves and the three clamping blocks is four or five; the number of each group of second square holes and limiting blocks in the three groups of second square holes and the three groups of limiting blocks is five;

the width of the fixture block is the same as the distance between two adjacent limiting blocks.

2. The table as in claim 1, wherein the table further comprises: the third spring is a compression spring; the fourth spring is an extension spring.

3. A table as claimed in claim 2, wherein the table has: the lower side of the clamping block is flush with the upper side of the limiting block.