An assembled height adjustment device and cabinet structure

Abstract

This utility model provides an assembled height adjustment device and cabinet structure, relating to the field of cabinet structure technology. It includes a side panel with a fixing groove on its surface, a base plate placed on the side panel, and a second fixing groove on the top surface of the base plate. This utility model, by setting up the side panel and fixing groove structure, allows for simple and quick connection and fixing of the device during use through multiple structures such as fixing posts one and two. It eliminates the need for extensive use of screws and nails for fixing components, and reduces the time and effort required. It does not require skilled installers and avoids problems such as insecure installation and excessive gaps between components, effectively preventing issues affecting the overall stability and aesthetics of the cabinet. Furthermore, if subsequent disassembly, repair, or adjustment of the cabinet is needed, the operation is simple and can be completed quickly, further improving the convenience and practicality of the cabinet.

Description

Technical Field

[0001] This utility model relates to the field of cabinet structure technology, and in particular to an assembled height adjustment device and cabinet structure. Background Technology

[0002] In daily life and in many commercial and office settings, cabinets have always been an important form of furniture for storing and displaying items, with a wide range of applications. Early cabinet designs were relatively simple and fixed, primarily focusing on basic storage functions. Carpenters typically used their experience to create cabinet frames of fixed dimensions and shapes from wood, then installed doors, shelves, and other components. Once completed, the overall structure was essentially fixed and difficult to alter. However, with rising living standards and increasingly diverse needs in various settings, people have placed more personalized demands on cabinets. For example, in a home environment, changes in spatial layout may require cabinets to be placed in different rooms, and factors such as ceiling height and usage in different rooms dictate different expectations for cabinet height. In office settings, differences in employee height and job duties mean that cabinets of uniform height cannot adequately meet everyone's comfortable usage needs.

[0003] Traditional cabinet assembly typically relies on cumbersome and complex connection methods, such as the extensive use of screws and nails to fix components together. This not only consumes considerable time and effort but also demands a high level of skill from the installers. Careless handling can easily lead to insecure installations and excessive gaps between components, affecting the overall stability and aesthetics of the cabinet. Furthermore, this fixing method makes subsequent disassembly, repair, or adjustment of the cabinet extremely difficult and slow, further reducing its convenience and practicality. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] This utility model adopts the following technical solution: an assembled height adjustment device and cabinet structure, including a side panel, a fixing groove 1 on the surface of the side panel, a base plate placed on the surface of the side panel, a fixing groove 2 on the top surface of the base plate, a placement groove on the bottom surface of the base plate, a fixing block sleeved inside the placement groove, a closing plate fixedly installed on the surface of the fixing block, a fixing cylinder fixedly installed at the bottom end of the fixing block, a moving column 1 sleeved inside the fixing cylinder, a limit block 1 fixedly installed at the bottom end of the moving column 1, a gear 1 sleeved inside the fixing block, threads 1 on the inner surface of the gear 1 and the outer surface of the moving column 1, and a second gear 2 sleeved inside the fixing block. Gear 3 is fixedly installed at the bottom of the second component. Fixed column 1 is fixedly installed at the top of the first movable column. Limit rod is fixedly installed inside the fixed block. A rack is sleeved on the outer surface of the limit rod. A movable block is fixedly installed at the top of the rack. Fixed column 2 is fixedly installed on the surface of the movable block. Limit plate 1 is fixedly installed on the surface of the fixed cylinder. Spring 1 is sleeved on the outer surface of the fixed cylinder. Movable plate 1 is sleeved on the outer surface of the fixed cylinder. Movable cylinder is sleeved on the outer surface of the fixed cylinder. Fixed plate is fixedly installed inside the movable cylinder. Gear 4 is fixedly installed at the top of the movable cylinder. Insertion cylinder is fixedly installed on the surface of the base plate. Slot is fixedly opened on the surface of the insertion cylinder. Fixed ball is sleeved inside the slot.

[0006] Preferably, the fixing plate is placed at the bottom end of the movable plate, one end of the spring is connected and fixed to the bottom surface of the limiting plate, and the other end of the spring is connected and fixed to the top surface of the movable plate. Here, the fixing plate is placed at the bottom end of the movable plate. This vertical placement allows the movable plate to provide some support and limit the fixing plate during movement, ensuring the relative stability of the fixing plate's position.

[0007] Preferably, the surface of gear one meshes with the surface of gear two, the surface of gear one meshes with the surface of the rack, and gear four meshes with gear three when it moves to be parallel to gear three. Here, the surface of gear one meshes with the surface of gear two. Through this meshing transmission, when gear two rotates, it can drive gear one to rotate, thereby driving the moving column one, which is threaded to it, to move up and down. This realizes the conversion of the rotational motion of gear two into the linear motion of the moving column one, providing an effective transmission method for cabinet height adjustment. Moreover, this gear transmission has accurate transmission ratio and high transmission efficiency.

[0008] Preferably, the closing plate is connected and fixed to the surface of the placement groove by bolts. The number of limiting blocks is four, and they are circumferentially distributed at the bottom end of the moving column. The gears are sleeved on the outer surface of the fixed cylinder. Here, the closing plate is connected and fixed to the surface of the placement groove by bolts. Bolt connection is characterized by strong connection and high reliability, ensuring that the fixing blocks are securely installed in the placement groove of the base plate. During cabinet use, even if subjected to vibration or external impact, the fixing blocks will not easily loosen or shift.

[0009] Preferably, there are two sets of fixing grooves symmetrically distributed on the surface of the side plate, and two sets of fixing posts symmetrically distributed on the surface of the moving block. The outer surface of the moving cylinder is provided with anti-slip textures, which are multiple sets arranged in an array on the outer surface. Here, the anti-slip textures on the outer surface of the moving cylinder, in multiple sets arranged in an array, increase the friction between the operator's hand and the surface of the moving cylinder when the operator manually moves the cylinder up and down, facilitating gripping and force application. Even with sweaty hands or wearing gloves, slippage is effectively prevented, making the movement of the moving cylinder more precise and smooth.

[0010] Preferably, a movable column two is sleeved inside the bottom end of the fixed cylinder, a limit block two is fixedly installed on the top surface of the movable column two, a limit groove is formed at the bottom end of the fixed cylinder, a rotating block is sleeved inside the limit groove, a rotating cylinder is fixedly installed at the bottom end of the rotating block, threads two are formed on the inner surface of the rotating cylinder and the outer surface of the movable column two, a support base is fixedly installed at the bottom end of the movable column two, a toothed block one is fixedly installed on the outer surface of the rotating cylinder, a toothed block two is fixedly installed on the inner surface of the bottom end of the movable cylinder, a limit plate two is fixedly installed on the outer surface of the fixed cylinder, a movable plate two is sleeved on the outer surface of the fixed cylinder, and a spring two is sleeved on the outer surface of the fixed cylinder. Here, the rotating cylinder, through the engagement of its inner surface with the threads two formed on the outer surface of the movable column two, can drive the movable column two to move up and down along the axial direction of the fixed cylinder when the rotating cylinder rotates. This provides another effective transmission method for adjusting the height of the cabinet. By rotating the rotating cylinder, the height of the cabinet can be finely adjusted to meet more precise height setting requirements. The support base is installed at the bottom of the second movable column, serving as the bottom support point of the entire cabinet structure. It is in direct contact with the ground and other supporting surfaces, and can stably bear the weight of the cabinet and its contents, ensuring that the cabinet stands stably during use and preventing it from tipping over due to uneven force or unstable support, thus ensuring safety during use.

[0011] Preferably, one end of the second spring is connected and fixed to the bottom surface of the second movable plate, and the other end of the second spring is connected and fixed to the top surface of the second limiting plate. The fixing plate is placed on the top surface of the second movable plate. Here, the fixing plate is placed on the top surface of the second movable plate. This placement relationship allows the second movable plate to support and limit the fixing plate during movement, ensuring the relative stability of the fixing plate's position.

[0012] Preferably, the number of tooth blocks one and two is multiple, and they are circumferentially distributed on the outer surface of the rotating cylinder and the inner surface of the moving cylinder. When tooth block two moves to be parallel to the surface of tooth block one, it meshes with the surface of tooth block one. Here, the number of tooth blocks one and two is multiple, and they are circumferentially distributed on the outer surface of the rotating cylinder and the inner surface of the moving cylinder. The circumferential distribution of tooth blocks one and two ensures that when they mesh, a uniform and comprehensive force transmission can be formed in the circumferential direction of the rotating cylinder and the moving cylinder, thus ensuring the smoothness and reliability of the transmission.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up a side plate and a fixing groove structure, multiple structures such as fixing column one and fixing column two can be easily and quickly connected and fixed when the equipment is in use. It eliminates the need to use a large number of screws, nails, etc. to fix the parts, and does not require much time and effort. It does not require the operator's skill level, and avoids problems such as insecure installation and excessive gaps between parts. It effectively prevents affecting the overall stability and aesthetics of the cabinet. At the same time, if the cabinet needs to be disassembled, repaired or adjusted in the future, the operation is simple and can be completed quickly, further improving the convenience and practicality of the cabinet.

[0015] 2. In this utility model, by setting up a structure of two movable columns, two limiting blocks, a limiting groove, a rotating block, a rotating cylinder, two threads, a support base, one toothed block, two toothed blocks, two limiting plates, two movable plates, and two springs, when the equipment is in use, the rotating cylinder engages with the two threads on the outer surface of the movable column through its inner surface. When the rotating cylinder rotates, it can drive the movable column to move up and down along the axial direction of the fixed cylinder. This provides another effective transmission method for adjusting the height of the cabinet. By rotating the rotating cylinder, the height of the cabinet can be finely adjusted to meet more precise height setting requirements. The support base is installed at the bottom of the movable column, serving as the bottom support point of the entire cabinet structure. It directly contacts the ground or other supporting surfaces, stably bearing the weight of the cabinet and its internal items, ensuring the cabinet stands stably during use, preventing the cabinet from tipping over due to uneven force or unstable support, and ensuring safety during use. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of an assembled height adjustment device and cabinet structure;

[0017] Figure 2 This utility model provides a bottom view of the assembled height adjustment device and cabinet structure.

[0018] Figure 3 This utility model provides an exploded structural diagram of an assembled height adjustment device and cabinet structure;

[0019] Figure 4 This utility model provides a cross-sectional structural diagram of an assembled height adjustment device and cabinet structure.

[0020] Figure 5 This utility model proposes an assembled height adjustment device and cabinet structure. Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This utility model proposes an assembled height adjustment device and cabinet structure. Figure 4 Enlarged view of section B in the middle.

[0022] Legend:

[0023] 1. Side plate; 2. Fixing groove one; 3. Base plate; 4. Fixing groove two; 5. Placement groove; 6. Fixing block; 7. Closing plate; 8. Fixing cylinder; 9. Moving column one; 10. Limiting block one; 11. Gear one; 12. Thread one; 13. Gear two; 14. Gear three; 15. Fixing column one; 16. Limiting rod; 17. Rack; 18. Moving block; 19. Fixing column two; 20. Limiting plate one; 21. Spring 1; 22. Moving plate 1; 23. Moving cylinder; 24. Fixed plate; 25. Gear 4; 26. Moving column 2; 27. Limiting block 2; 28. Limiting groove; 29. ​​Rotating block; 30. Rotating cylinder; 31. Thread 2; 32. Support base; 33. Gear block 1; 34. Gear block 2; 35. Limiting plate 2; 36. Moving plate 2; 37. Spring 2; 38. Inserting cylinder; 39. Slot; 40. Fixed ball. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1

[0027] Please see Figures 1-6This utility model provides a technical solution: an assembled height adjustment device and cabinet structure, including a side plate 1, a fixing groove 2 on the surface of the side plate 1, a base plate 3 placed on the surface of the side plate 1, a fixing groove 4 on the top surface of the base plate 3, a placement groove 5 on the bottom surface of the base plate 3, a fixing block 6 fitted inside the placement groove 5, a closing plate 7 fixedly installed on the surface of the fixing block 6, a fixing cylinder 8 fixedly installed at the bottom end of the fixing block 6, a moving column 9 fitted inside the fixing cylinder 8, a limit block 10 fixedly installed at the bottom end of the moving column 9, a gear 11 fitted inside the fixing block 6, threads 12 on the inner surface of the gear 11 and the outer surface of the moving column 9, and a second gear 11 fitted inside the fixing block 6. 3. Gear 3 14 is fixedly installed at the bottom end of gear 2 13. Fixing post 15 is fixedly installed at the top end of moving post 1 9. Limiting rod 16 is fixedly installed inside fixing block 6. A rack 17 is sleeved on the outer surface of limiting rod 16. Moving block 18 is fixedly installed at the top end of rack 17. Fixing post 2 19 is fixedly installed on the surface of moving block 18. Limiting plate 20 is fixedly installed on the surface of fixing cylinder 8. Spring 21 is sleeved on the outer surface of fixing cylinder 8. Moving plate 22 is sleeved on the outer surface of fixing cylinder 8. Moving cylinder 23 is sleeved on the outer surface of fixing cylinder 8. Fixing plate 24 is fixedly installed inside moving cylinder 23. Gear 4 25 is fixedly installed at the top end of moving cylinder 23. Insertion cylinder 38 is fixedly installed on the surface of base plate 3. The surface is fixed with a slot 39, and a fixing ball 40 is fitted inside the slot 39. When using the equipment, first insert the insertion cylinder 38 into the fixing slot 2, then insert the fixing block 6 into the placement slot 5 of the base plate 3 and fix it with the closing plate 7, so that the fixing cylinder 8 is in the corresponding position. Then, manually move the moving cylinder 23, which drives the gear 4 25 to move. The movement of the moving cylinder 23 drives the fixing plate 24 to move, and then the movement of the fixing plate 24 drives the moving plate 22 to move. Then the movement of the moving plate 22 drives the spring 21 to retract. Then, the gear 4 25 is moved to mesh with the gear 3 14. Then, rotate the moving cylinder 23, and then the rotation of the moving cylinder 23 drives the rotation of the gear 4 25. Next, the rotation of gear 4 (25) drives gear 3 (14), which in turn drives gear 2 (13), which in turn drives gear 1 (11), which in turn drives rack 17, which in turn drives moving block 18, which in turn drives fixed post 2 (19). Simultaneously, the rotation of gear 1 (11) drives moving post 1 (9) and limit block 1 (10), which in turn drives fixed post 1 (15), which in turn drives fixed post 1 (15), which in turn drives fixed post 2 (19). This movement of fixed post 2 (19) then compresses fixed ball 40, and the movement of fixed ball 40 quickly connects and fixes side plate 1 and base plate 3.Simultaneously, the cabinet can be placed on the surface of side panel 1 and bottom panel 3. Then, the fixing post 15 is inserted into the pre-reserved slot inside the cabinet. After connection, the hand is disengaged from the surface of the moving cylinder 23, and the moving cylinder 23 is reset by the return motion of spring 21.

[0028] Please see Figures 1-6 The fixed plate 24 is placed at the bottom end of the movable plate 22. One end of the spring 21 is connected and fixed to the bottom surface of the limiting plate 20, and the other end of the spring 21 is connected and fixed to the top surface of the movable plate 22. The surface of the gear 11 meshes with the surface of the gear 23, and the surface of the gear 11 meshes with the surface of the rack 17. When the gear 4 25 moves to be parallel with the gear 3 14, it meshes with the gear 3 14. The closing plate 7 is connected and fixed to the surface of the placement groove 5 by bolts. There are four sets of limiting blocks 10, which are circumferentially distributed at the bottom end of the movable column 9. The gear 4 25 is sleeved on the outer surface of the fixed cylinder 8. There are two sets of fixing grooves 2, which are symmetrically distributed on the surface of the side plate 1. There are two sets of fixing columns 29, which are symmetrically distributed on the surface of the movable block 18. The outer surface of the movable cylinder 23 is provided with anti-slip textures, which are multiple sets and arranged in an array on the outer surface of the movable cylinder 23. The spring... One end of spring 37 is connected and fixed to the bottom surface of moving plate 36, and the other end of spring 37 is connected and fixed to the top of limiting plate 35. Fixed plate 24 is placed on the top surface of moving plate 36. There are multiple sets of toothed blocks 33 and 34, which are circumferentially distributed on the outer surface of rotating cylinder 30 and the inner surface of moving cylinder 23. When toothed block 34 moves to be parallel to the surface of toothed block 33, it meshes with the surface of toothed block 33. This specific meshing condition clarifies the timing and state of effective transmission between the two. When this condition is met, the up and down movement of moving cylinder 23 can be accurately transmitted to rotating cylinder 30 through the meshing between the toothed blocks, thereby driving moving column 26 to move up and down accordingly, realizing the adjustment of cabinet height. This precise meshing relationship ensures the accuracy and reliability of transmission.

[0029] Example 2

[0030] Please see Figures 5-6The bottom end of the fixed cylinder 8 is fitted with a movable column 26. A limit block 27 is fixedly installed on the top surface of the movable column 26. A limit groove 28 is formed at the bottom end of the fixed cylinder 8. A rotating block 29 is fitted inside the limit groove 28. A rotating cylinder 30 is fixedly installed at the bottom end of the rotating block 29. Threads 31 are formed on the inner surface of the rotating cylinder 30 and the outer surface of the movable column 26. A support base 32 is fixedly installed at the bottom end of the movable column 26. A toothed block 33 is fixedly installed on the outer surface of the rotating cylinder 30. A toothed block 34 is fixedly installed on the inner surface of the bottom end of the movable cylinder 23. A limit plate 35 is fixedly installed on the outer surface of the fixed cylinder 8. A movable plate 36 is fitted on the outer surface of the fixed cylinder 8. A second spring 37 is provided. When height adjustment is required, first, the hand contacts the surface of the movable cylinder 23, then pulls the movable cylinder 23. The movement of the movable cylinder 23 moves the fixed plate 24, which in turn moves the second movable plate 36. The movement of the second movable plate 36 then causes the second spring 37 to retract. The movement of the movable cylinder 23 then moves the second toothed block 34 until it engages with the surface of the first toothed block 33. The movable cylinder 23 is then rotated, causing the second toothed block 34 to rotate, which in turn rotates the first toothed block 33. The rotation of the first toothed block 33 then rotates the rotating cylinder 30. The rotation of the rotating cylinder 30 then moves the second movable column 26, which in turn moves the support base 32, thus adjusting the height.

[0031] Working principle: When using the equipment, first insert the insertion cylinder 38 into the fixed slot 2. Then, install the fixing block 6 into the placement slot 5 of the base plate 3 and fix it with the closing plate 7, so that the fixing cylinder 8 is in the corresponding position. Next, manually move the moving cylinder 23. The moving cylinder 23 drives the gear 4 25 to move. The movement of the moving cylinder 23 drives the fixed plate 24 to move. Then, the movement of the fixed plate 24 drives the moving plate 1 22 to move. Then, the movement of the moving plate 1 22 drives the spring 1 21 to retract. Then, the gear 4 25 moves to mesh with the gear 3 14. Then, rotate the moving cylinder 23. Then, the rotation of the moving cylinder 23 drives the spring 1 21 to retract. The moving gear 4 25 rotates, which in turn drives the rotating gear 3 14, which in turn drives the rotating gear 2 13, which in turn drives the rotating gear 11, which in turn drives the rotating rack 17, which in turn drives the moving block 18, which in turn drives the moving column 2 19, which in turn drives the rotating gear 11, which in turn drives the moving column 19 and the limiting block 10, which in turn drives the moving column 19, which in turn drives the moving column 15, which in turn drives the moving column 16, which in turn drives the moving column 17, which in turn drives the moving block 18, which in turn drives the moving column 19, which in turn drives the moving column 16, which in turn drives the moving column 17, which in turn drives the moving block 18, which in turn drives the moving column 19, which in turn drives the moving column 16, which in turn drives the moving column 17, which in turn drives the moving block 18, which in turn drives the moving column 19, which in turn drives the moving column 19, which in turn drives the moving column 19, which in turn drives the moving column 10, which in turn drives the moving column 19 ... 9. Moving the fixed ball 40 allows for quick connection and fixation of the side panel 1 and the base plate 3. Simultaneously, the cabinet can be placed on the surfaces of the side panel 1 and the base plate 3. Next, the fixing post 15 is inserted into the pre-reserved slot inside the cabinet. After connection, the hand is disengaged from the surface of the moving cylinder 23. The moving cylinder 23 is reset by the return motion of the spring 21. To adjust the height, first contact the surface of the moving cylinder 23 with your hand, then pull the moving cylinder 23. The movement of the moving cylinder 23 moves the fixing plate 24, which in turn moves the moving plate 36. The device moves along the track, then the moving plate 26 moves, causing the spring 27 to contract. Next, the moving cylinder 23 moves, causing the toothed block 24 to move. Then, the toothed block 24 is moved until it meshes with the surface of the toothed block 1 33. Then, the moving cylinder 23 is rotated, causing the toothed block 24 to rotate. Then, the toothed block 24 rotates, causing the toothed block 1 33 to rotate. Then, the toothed block 1 33 rotates, causing the rotating cylinder 30 to rotate. Then, the rotating cylinder 30 rotates, causing the moving column 26 to move. Then, the moving column 26 moves, causing the support base 32 to move, thus adjusting the height.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An assembled height-adjusting device and cabinet structure comprising a side plate (1), characterized in that: The side plate (1) has a fixing groove 1 (2) on its surface. A base plate (3) is placed on the side plate (1). The top surface of the base plate (3) has a fixing groove 2 (4). The bottom surface of the base plate (3) has a placement groove (5). A fixing block (6) is fitted inside the placement groove (5). A closing plate (7) is fixedly installed on the surface of the fixing block (6). A fixing cylinder (8) is fixedly installed at the bottom of the fixing block (6). A moving column 1 (9) is fitted inside the fixing cylinder (8). A limit block 1 (10) is fixedly installed at the bottom of the moving column 1 (9). A gear 1 (11) is fitted inside the fixing block (6). A thread 1 (12) is formed on the inner surface of the gear 1 (11) and the outer surface of the moving column 1 (9). A gear 2 (13) is fitted inside the fixing block (6). A gear 3 (14) is fixedly installed at the bottom of the gear 2 (13). The top of the moving column 1 (9) is fixedly... A fixed column (15) is installed. A limiting rod (16) is fixedly installed inside the fixed block (6). A rack (17) is sleeved on the outer surface of the limiting rod (16). A movable block (18) is fixedly installed at the top of the rack (17). A fixed column (19) is fixedly installed on the surface of the movable block (18). A limiting plate (20) is fixedly installed on the surface of the fixed cylinder (8). A spring (21) is sleeved on the outer surface of the fixed cylinder (8). A movable plate (22) is sleeved on the outer surface of the fixed cylinder (8). A movable cylinder (23) is sleeved on the outer surface of the fixed cylinder (8). A fixed plate (24) is fixedly installed inside the movable cylinder (23). A gear (25) is fixedly installed at the top of the movable cylinder (23). An insertion cylinder (38) is fixedly installed on the surface of the base plate (3). A slot (39) is fixedly opened on the surface of the insertion cylinder (38). A fixed ball (40) is sleeved inside the slot (39).

2. The assembled height-adjustable device and cabinet structure according to claim 1, characterized in that: The fixed plate (24) is placed at the bottom of the movable plate (22), one end of the spring (21) is connected and fixed to the bottom surface of the limiting plate (20), and the other end of the spring (21) is connected and fixed to the top surface of the movable plate (22).

3. The assembled height adjustment device and cabinet structure according to claim 1, characterized in that: The surface of gear one (11) meshes with the surface of gear two (13), the surface of gear one (11) meshes with the surface of rack (17), and gear four (25) meshes with gear three (14) when it moves to be parallel to gear three (14).

4. The assembled height-adjustable device and cabinet structure according to claim 1, characterized in that: The closed plate (7) and the surface of the placement groove (5) are connected and fixed by bolts. The number of the limiting block one (10) is four sets and they are distributed in a circle at the bottom of the moving column one (9). The gear four (25) is sleeved on the outer surface of the fixed cylinder (8).

5. The assembled height adjustment device and cabinet structure according to claim 1, characterized in that: The number of fixed grooves (2) is two sets and they are symmetrically distributed on the surface of the side plate (1). The number of fixed columns (19) is two sets and they are symmetrically distributed on the surface of the moving block (18). The outer surface of the moving cylinder (23) is provided with anti-slip textures. The number of anti-slip textures is multiple sets and they are arrayed on the outer surface of the moving cylinder (23).

6. The assembled height adjustment device and cabinet structure according to claim 1, characterized in that: The bottom end of the fixed cylinder (8) is fitted with a movable column two (26), the top surface of the movable column two (26) is fixedly installed with a limit block two (27), the bottom end of the fixed cylinder (8) is provided with a limit groove (28), the inside of the limit groove (28) is fitted with a rotating block (29), the bottom end of the rotating block (29) is fixedly installed with a rotating cylinder (30), the inner surface of the rotating cylinder (30) and the outer surface of the movable column two (26) are both provided with threads two (31), the bottom end of the movable column two (26) is fixedly installed with a support base (32), the outer surface of the rotating cylinder (30) is fixedly installed with a tooth block one (33), the inner surface of the bottom end of the movable cylinder (23) is fixedly installed with a tooth block two (34), the outer surface of the fixed cylinder (8) is fixedly installed with a limit plate two (35), the outer surface of the fixed cylinder (8) is fitted with a movable plate two (36), and the outer surface of the fixed cylinder (8) is fitted with a spring two (37).

7. An assembled height adjustment device and cabinet structure according to claim 6, characterized in that: One end of the second spring (37) is connected and fixed to the bottom surface of the second movable plate (36), and the other end of the second spring (37) is connected and fixed to the top end of the second limiting plate (35). The fixing plate (24) is placed on the top surface of the second movable plate (36).

8. The assembled height adjustment device and cabinet structure according to claim 6, characterized in that: The number of tooth blocks one (33) and tooth blocks two (34) is multiple and they are distributed in a circular pattern on the outer surface of the rotating cylinder (30) and the inner surface of the moving cylinder (23). When tooth blocks two (34) move to be parallel to the surface of tooth blocks one (33), they mesh with the surface of tooth blocks one (33).

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