Gear-free lifting mechanism

Abstract

The utility model relates to the technical field of machinery, in particular to a gear-free lifting mechanism. Comprising a stand column, a guide rail is arranged in the stand column, a connecting rod is arranged in the guide rail, the guide rail is connected with one end of a lifting plate through a sliding block, the other end of the lifting plate is provided with a connecting rod, the connecting rod is sleeved with a locking plate, and a first lifting locking block and a second lifting locking block which are oppositely arranged are arranged on the two sides between the lifting plate and the locking plate respectively. The connecting rod penetrates through the first lifting locking block and the second lifting locking block, notches are formed in the two sides of the upper end of the locking plate respectively, the upper end of the first lifting locking block and the upper end of the second lifting locking block are located in the notches in the two sides respectively, the interiors of the notches in the two sides abut against one end of a first spring and one end of a second spring respectively, and a clamping plate bent towards the lifting plate is arranged at the lower end of the locking plate. Compared with the prior art, the height can be rapidly adjusted, locking can be conducted through the lifting locking block at any needed position, limitation of height gears is avoided, and the requirements of more users can be met.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically a gearless lifting mechanism. Background Technology

[0002] With societal progress, various specialized furniture and recreational equipment need to meet the needs of people of different heights and require the ability to quickly adjust height. Most existing lifting mechanisms have preset height settings, limiting the adjustable height range and failing to meet the needs of a wider range of users.

[0003] Therefore, it is essential to design a gearless lifting mechanism. Summary of the Invention

[0004] This utility model provides a gearless lifting mechanism to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, a gearless lifting mechanism is designed, including a column, a guide rail inside the column, a connecting rod inside the guide rail, a slider connecting one end of a lifting plate on the guide rail, a connecting rod at the other end of the lifting plate, a locking plate sleeved on the connecting rod, a first lifting locking block and a second lifting locking block arranged opposite to each other on both sides between the lifting plate and the locking plate, the connecting rod passing through the first lifting locking block and the second lifting locking block, recesses on both sides of the upper end of the locking plate, the upper ends of the first lifting locking block and the upper ends of the second lifting locking block respectively located in the recesses on both sides, abutting one end of the first spring and the second spring respectively in the recesses on both sides, the other ends of the first spring and the second spring respectively passing through the first lifting locking block and the second lifting locking block and fixed to the lifting plate, a clamping plate bent towards the lifting plate at the lower end of the locking plate, the clamping plate being located between the lower ends of the first lifting locking block and the lower ends of the second lifting locking block.

[0006] The other ends of the first spring and the second spring are respectively fixed to both sides of the partition plate, the partition plate is fixed to the lifting plate, and the first spring and the second spring are respectively provided with a first protective cover and a second protective cover on their outer sides.

[0007] The first and second lifting locking blocks are provided with fulcrums on their outer sides.

[0008] The locking plate is provided with a through hole that mates with the connecting rod.

[0009] The locking plate has a bent connecting part on one side surface.

[0010] The first and second lifting locking blocks are provided with through holes.

[0011] One end of the connecting rod is provided with a limiting component.

[0012] The surface of the column is provided with clearance grooves.

[0013] The lifting plate has abutment parts on both sides that cooperate with the locking plate.

[0014] Compared with the prior art, this utility model can quickly adjust the height and can be locked at any desired position by the lifting locking block, without being limited by the height gear, and can meet the needs of more users. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a front view of the present invention.

[0017] Figure 3 This is an exploded view of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of this utility model after the columns are removed.

[0019] Figure 5 This is a schematic diagram of the structure of the lifting plate of this utility model.

[0020] Figure 6 This is a schematic diagram of the locking plate of this utility model.

[0021] Figure 7 This is a structural schematic diagram of the locking plate of this utility model from another perspective.

[0022] Figure 8 This is a schematic diagram of the lifting and locking block of this utility model.

[0023] Figure 9 This is a schematic diagram of the structure of this utility model in use. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 8As shown, a guide rail 2 is provided inside the column 1, and a connecting rod 19 is provided inside the guide rail 2. One end of the lifting plate 4 is connected to the guide rail 2 via a slider 3. The other end of the lifting plate 4 is provided with a connecting rod 16, and a locking plate 5 is sleeved on the connecting rod 16. A first lifting locking block 6 and a second lifting locking block 7 are respectively arranged opposite to each other on both sides between the lifting plate 4 and the locking plate 5. The connecting rod 19 passes through the first lifting locking block 6 and the second lifting locking block 7. The upper end of the locking plate 5 is provided with notches 13 on both sides. The upper ends of the locking block 6 and the second lifting locking block 7 are respectively located in the recesses 13 on both sides. The recesses 13 on both sides abut one end of the first spring 14 and the second spring 15 respectively. The other ends of the first spring 14 and the second spring 15 pass through the first lifting locking block 6 and the second lifting locking block 7 respectively and are fixed on the lifting plate 4. The lower end of the locking plate 5 is provided with a clamping plate 11 that bends towards the lifting plate 4. The clamping plate 11 is located between the lower end of the first lifting locking block 6 and the lower end of the second lifting locking block 7.

[0026] The other ends of the first spring 14 and the second spring 15 are respectively fixed to both sides of the partition plate 12. The partition plate 12 is fixed on the lifting plate 4. The first spring 14 and the second spring 15 are respectively provided with a first protective cover 9 and a second protective cover 10 on their outer sides.

[0027] The first lifting locking block 6 and the second lifting locking block 7 are provided with a fulcrum 8 on their outer sides.

[0028] The locking plate 5 is provided with a through hole 17 that mates with the connecting rod 16.

[0029] The locking plate 5 has a bent connecting part 18 on one side surface.

[0030] The first lifting locking block 6 and the second lifting locking block 7 are provided with through holes 23.

[0031] One end of the connecting rod 19 is provided with a limiting element 20. During the sliding process of the lifting plate 4, the connecting rod 19 plays a guiding role. The limiting element 20 at one end of the connecting rod 19 acts as a limiting element when one side of the lifting plate 4 abuts against the limiting element 20. The connecting rod 19 is fixed in the guide rail 2 by fastening screws.

[0032] The surface of the column 1 is provided with a clearance groove 21 to prevent interference with the movement of the lifting plate 4 and the locking plate 5.

[0033] The lifting plate 4 has abutment parts 22 on both sides that cooperate with the locking plate 5 to prevent the locking plate 5 from shifting position due to uneven force.

[0034] In use, the guide rail 2 is secured inside the column 1, and the lifting plate 4 is locked onto the slider 3 of the guide rail 2 with fastening screws. When height adjustment is required, the connecting rod 16 is connected to an external accessory that requires height adjustment. The external accessory pulls the connecting rod 16, causing the lifting plate 4 to move up and down. The locking plate 5 is connected to another external accessory via a connecting part 18 for unlocking. When the height is raised to the appropriate position, locking and unlocking are achieved through the cooperation of the locking plate 5, the first lifting locking block 6, the second lifting locking block 7, the first spring 14, and the second spring 15.

[0035] When there is no external force at the connecting part 18 of the locking plate 5, it is in a normally locked state. The first spring 14 and the second spring 15 push the first lifting locking block 6 and the second lifting locking block 7 to both sides, forming an angle with the connecting rod 19, thus locking them. Specifically, as Figure 9 As shown, pulling down the locking plate 5 compresses the second spring 15, causing the second lifting locking block 7 to tilt, forming an angle between the upper part of the second lifting locking block 7 and the connecting rod 19, thus completing the locking. When unlocking is required, pulling up the locking plate 5 causes the locking plate 11 to push the second lifting locking block 7 under the action of the latch plate 11 and the recess 13. The inner wall of the recess 13 pushes the first lifting locking block 6, reducing the angle between the fulcrum 8 and the connecting rod 19, thus completing the unlocking. Pulling down the connecting rod 16 lowers the height of the external accessories.

[0036] When the connecting rod 16 is pulled upwards, the height of the external accessories rises. To lock, the locking plate 5 is pulled upwards, compressing the first spring 14 and tilting the first lifting locking block 6, causing its upper part to form an angle with the connecting rod 19, thus locking. To unlock, the locking plate 5 is pulled downwards. Under the action of the latching plate 11 and the recess 13, the latching plate 11 pushes the first lifting locking block 6, and the inner wall of the recess 13 pushes the second lifting locking block 7. The angle between the fulcrum 8 and the connecting rod 19 decreases, thus unlocking.

Claims

1. A gearless lifting mechanism, comprising a column, characterized in that: The column (1) is provided with a guide rail (2), and the guide rail (2) is provided with a connecting rod (19). One end of the lifting plate (4) is connected to the guide rail (2) by a slider (3). The other end of the lifting plate (4) is provided with a connecting rod (16). A locking plate (5) is fitted on the connecting rod (16). A first lifting locking block (6) and a second lifting locking block (7) are respectively arranged opposite to each other on both sides between the lifting plate (4) and the locking plate (5). The connecting rod (19) passes through the first lifting locking block (6) and the second lifting locking block (7). The upper end of the locking plate (5) is provided with notches (13) on both sides. The upper ends of the first lifting locking block (6) and the second lifting locking block (7) are located in the recesses (13) on both sides respectively. The recesses (13) on both sides respectively abut one end of the first spring (14) and the second spring (15). The other ends of the first spring (14) and the second spring (15) pass through the first lifting locking block (6) and the second lifting locking block (7) respectively and are fixed on the lifting plate (4). The lower end of the locking plate (5) is provided with a card plate (11) that bends toward the lifting plate (4). The card plate (11) is located between the lower end of the first lifting locking block (6) and the lower end of the second lifting locking block (7).

2. The gearless lifting mechanism according to claim 1, characterized in that: The other ends of the first spring (14) and the second spring (15) are respectively fixed on both sides of the partition plate (12), the partition plate (12) is fixed on the lifting plate (4), and the first spring (14) and the second spring (15) are respectively provided with a first protective cover (9) and a second protective cover (10).

3. The gearless lifting mechanism according to claim 1, characterized in that: The first lifting locking block (6) and the second lifting locking block (7) are provided with fulcrums (8) on their outer sides.

4. The gearless lifting mechanism according to claim 1, characterized in that: The locking plate (5) is provided with a through hole (17) that cooperates with the connecting rod (16).

5. A gearless lifting mechanism according to claim 1 or 4, characterized in that: The locking plate (5) has a bent connecting part (18) on one side surface.

6. A gearless lifting mechanism according to claim 1 or 3, characterized in that: The first lifting locking block (6) and the second lifting locking block (7) are provided with through holes (23).

7. The gearless lifting mechanism according to claim 1, characterized in that: One end of the connecting rod (19) is provided with a limiting member (20).

8. The gearless lifting mechanism according to claim 1, characterized in that: The surface of the column (1) is provided with a clearance groove (21).

9. A gearless lifting mechanism according to claim 1, characterized in that: The lifting plate (4) has abutment parts (22) on both sides that cooperate with the locking plate (5).

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