Quickly dismountable lifting table ground pin structure

Abstract

The utility model discloses a kind of lifting table ground foot structures of quick dismounting, comprising: stand and ground foot assembly, ground foot assembly includes ground foot outer plate and the ground foot inner plate with cavity, ground foot outer plate connects stand;Switching board is rotatably connected in cavity, the bottom surface of ground foot outer plate is slidably connected with locking plate, linkage rod is rotatably connected between locking plate and switching board, the bottom of ground foot inner plate is provided with operating opening for overturning switching board;Locking member is connected between stand and ground foot outer plate, locking member has variable-diameter part, variable-diameter limiting slot is arranged on locking plate, variable-diameter limiting slot is connected with variable-diameter part, so that locking member restricts ground foot assembly free from stand.The utility model is novel in structure, and it is assembled quickly, time and labor are saved, replace traditional screw fastening mode, eliminate dependence on professional tools, solve the problem that artificial fastening can cause instability due to loosening, or over-tightening and cause stress concentration damage components.

Description

Technical Field

[0001] This utility model belongs to the field of height-adjustable desk technology, and in particular relates to a height-adjustable desk base structure that can be quickly disassembled and assembled. Background Technology

[0002] The legs of a height-adjustable desk generally consist of a motor box, a lifting column, and supporting feet. Currently, the lifting column and supporting feet are commonly connected by bolts and matching nuts or pre-drilled screw holes to achieve a rigid connection and fixation.

[0003] During the assembly process, users need to use special assembly tools (such as electric screwdrivers, torque wrenches, etc.), which have the following defects: ① Inadequate tightening: Connection points are prone to loosening, affecting the overall stability and load-bearing capacity of the product, and may cause shaking or abnormal noise; ② Over-tightening: Damage to parts (such as stripped threads) or cause local stress concentration, affecting the service life and safety of the product; ③ Easy assembly errors: Incorrect connection of parts or omission of steps, resulting in the product being unable to be used normally or malfunctioning.

[0004] Existing patent document (publication number: CN214617345U) discloses "a quick-installation structure for feet", which also has the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art, and to provide a quick-disassembly and detachable lifting table leg structure. The structure is novel, the assembly is quick, and it saves time and effort. It replaces the traditional screw fastening method, overcomes the problem of thread wear caused by repeated tightening and loosening of traditional bolts, eliminates the dependence on professional tools, and solves the problems that manual tightening may cause loosening and insufficient stability, or excessive tightening may cause stress concentration and damage to parts.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A quick-assembly and detachable height-adjustable desk base structure includes: a column and a base assembly. The base assembly includes an outer base plate and an inner base plate with a cavity. The outer base plate is mounted on the inner base plate and connected to the column. The key feature is that a switch plate is rotatably connected within the cavity, a locking plate is slidably connected to the bottom surface of the outer base plate, and a linkage rod is rotatably connected between the locking plate and the switch plate. An operating port for flipping the switch plate is provided at the bottom of the inner base plate. A locking element is connected between the column and the outer base plate. The locking element has a diameter-changing section, and the locking plate has a diameter-changing limiting groove that engages with the diameter-changing section to prevent the base assembly from freely detaching from the column. This base structure is novel, quick to assemble, and saves time and effort. It replaces traditional screw fastening methods, overcomes the thread wear problem caused by repeated tightening and loosening of traditional bolts, eliminates reliance on professional tools, and solves the problems of insufficient stability due to loosening caused by manual tightening, or stress concentration and damage to components due to overtightening.

[0008] Furthermore, the diameter-changing part includes a mounting part and a blocking part. The cross-sectional diameter of the blocking part is larger than that of the mounting part. The diameter-changing limiting groove includes a guide slot and a limiting slot. The guide slot communicates with the limiting slot, and the cross-sectional diameter of the guide slot is larger than that of the limiting slot. The guide slot corresponds to the blocking part, and the limiting slot corresponds to the mounting part. During assembly, the blocking part of the locking component passes through the guide slot, and the mounting part is located in the guide slot. Pressing the switch plate causes the locking plate to slide through the linkage rod. The mounting part enters the limiting slot from the guide slot, and the blocking part prevents the mounting part from axially disengaging from the limiting slot. This allows the locking component to restrict the foot assembly from freely detaching from the column. Assembly is quick, time-saving, and labor-saving, replacing the traditional screw fastening method and overcoming the thread wear problem caused by repeated tightening and loosening of traditional bolts. It also eliminates the dependence on professional tools (such as electric screwdrivers and torque wrenches).

[0009] Furthermore, the limiting slot protrudes from the bottom surface of the locking plate to form a raised part, which corresponds to the blocking part. When the raised part and the blocking part are in contact, they are in close contact and there is a large friction force. The locking plate cannot slide freely, thus achieving mechanical self-locking. This solves the problem that manual tightening may cause loosening and insufficient stability, or excessive tightening may cause stress concentration and damage to parts, thus ensuring the performance of the product.

[0010] Furthermore, a guide slope is provided between the protrusion and the bottom surface of the locking plate. During the sliding process of the locking plate, the guide slope plays a role in guiding the blocking part to fit with the protrusion, which improves the ease of assembly.

[0011] Furthermore, a limiting pin is screwed between the locking plate and the outer foot plate. The limiting pin acts as a limiter for the locking plate, preventing it from detaching freely from the outer foot plate.

[0012] Furthermore, the locking plate is provided with a guide slot, and the limiting pin is provided with a guide part corresponding to the guide slot. The limiting pin is provided with a limiting end, the cross-sectional diameter of which is larger than the cross-sectional diameter of the guide slot. The guide part and the guide slot provide movement guidance, realizing the directional sliding of the locking plate, while the limiting end acts as a blocking function to prevent the locking plate from freely detaching from the outer plate of the foot.

[0013] Furthermore, there is a gap between the limiting end and the locking plate to avoid the limiting end and the locking plate from colliding and having large frictional forces, thereby reducing the resistance when the locking plate slides.

[0014] Furthermore, a positioning plate is installed inside the cavity, which is rotatably connected to the switch plate. Located within the cavity, the positioning plate is protected from direct external impacts, providing simple protection. The positioning plate also provides support for the switch plate, ensuring high reliability.

[0015] Furthermore, the inner footplate is fixed to the positioning plate by fasteners, ensuring reliable fixation, easy disassembly, and immediate use.

[0016] Furthermore, the locking element is screwed to the column for secure connection, ensuring reliable installation and convenient use.

[0017] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0018] When installing the foot assembly, the locking element is passed through the through hole in the outer plate of the foot assembly, so that the blocking part of the locking element passes through the guide slot of the locking plate. The mounting part of the locking element is located in the guide slot of the locking plate. Then, the switch plate is pressed. The switch plate drives the locking plate to slide towards the positioning plate via the linkage rod. The guide part of the limit pin and the guide slot of the locking plate provide movement guidance, realizing the directional sliding of the locking plate. The mounting part enters the limit slot from the guide slot, ensuring the uniqueness of the locking plate's movement path, reducing the risk of installation errors, and avoiding problems such as component misalignment and missed steps common in traditional bolt assembly. When the blocking part and the protrusion are in contact, they are in close contact, which has a relatively high degree of stability. The high friction prevents the locking plate from sliding freely, achieving mechanical self-locking. The blocking part axially disengages from the limiting slot, allowing the locking component to restrict the foot assembly from freely detaching from the column. Assembly is quick, time-saving, and labor-saving, replacing the traditional screw fastening method. It overcomes the thread wear problem caused by repeated tightening and loosening of traditional bolts, eliminates the dependence on professional tools (such as electric screwdrivers and torque wrenches), and solves the problems of insufficient stability due to loosening caused by manual tightening, or stress concentration and damage to components caused by overtightening, thus ensuring the performance of the product. During disassembly, pulling up the switch plate will drive the locking plate to slide in the opposite direction and reset through the linkage rod, allowing the foot assembly to be removed. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a structural diagram of a quick-disassembly and detachable lifting table leg structure according to the present invention.

[0021] Figure 2 This is a schematic diagram of the open state of the switch panel in this utility model;

[0022] Figure 3 This is a schematic diagram of the closed state of the switch plate in this utility model;

[0023] Figure 4 This is a schematic diagram showing the connection between the column and the base assembly in this utility model;

[0024] Figure 5 This is a schematic diagram of the planar structure of the locking plate in this utility model;

[0025] Figure 6 for Figure 5 Sectional view of AA in the middle;

[0026] Figure 7 This is a schematic diagram of the locking component in this utility model;

[0027] Figure 8 This is a schematic diagram of the limiting pin in this utility model.

[0028] In the diagram: 1-Column; 2-Outer base plate; 3-Inner base plate; 4-Locking component; 5-Diameter change part; 6-Mounting part; 7-Blocking part; 8-Through hole; 9-Locking plate; 10-Limit pin; 11-Guide slot hole; 12-Guide part; 13-Limit end; 14-Diameter change limit slot; 15-Guide slot hole; 16-Limit slot hole; 17-Fixing component; 18-Positioning plate; 19-Switch plate; 20-Linkage rod; 21-Operating port; 22-Protrusion; 23-Guide slope. Detailed Implementation

[0029] like Figures 1 to 8 As shown, this utility model discloses a quick-assembly and disassembly adjustable table base structure, including: a column 1 and a base assembly. The base assembly includes an outer base plate 2 and an inner base plate 3 with a cavity. The outer base plate 2 is fixed on the inner base plate 3. The bottom of the column 1 is connected to a locking component 4. The locking component 4 uses locking screws, which are reliable, easy to disassemble, and can be installed and used immediately. The number of locking components 4 is generally 2-4, and the specific number is set according to the actual installation requirements.

[0030] A locking plate 9 is slidably connected to the bottom surface of the outer foot plate 2. A limit pin 10 is screwed between the locking plate 9 and the outer foot plate 2. The locking plate 9 is provided with a guide slot 11, which is straight. The limit pin 10 is provided with a guide part 12 corresponding to the guide slot 11. The limit pin 10 is provided with a limit end 13, the cross-sectional diameter of which is larger than the cross-sectional diameter of the guide slot 11. There is a gap between the limit end 13 and the locking plate 9, and the gap distance is 0.1-1mm.

[0031] The locking member 4 has a diameter-changing part 5, which includes a mounting part 6 and a blocking part 7. The cross-sectional diameter of the blocking part 7 is larger than that of the mounting part 6. The outer foot plate 2 is provided with a through hole 8 for the blocking part 7 to pass through. The locking plate 9 is provided with a diameter-changing limiting groove 14, which includes a guide groove 15 and a limiting groove 16. The guide groove 15 communicates with the limiting groove 16. The cross-sectional diameter of the guide groove 15 is larger than that of the limiting groove 16. The guide groove 15 corresponds to the blocking part 7, and the limiting groove 16 corresponds to the mounting part 6.

[0032] The inner plate 3 of the foot is fixed to the positioning plate 18 by screw fastener 17. The fastener 17 uses screws, and the positioning plate 18 is reliably fixed, easy to disassemble and assemble, and can be used as soon as it is installed. The positioning plate 18 is located in the cavity and is protected from direct external impact, thus providing a simple protection effect.

[0033] During installation, first insert the guide part 12 of the limiting pin 10 into the guide groove 11, and then connect and fix the threaded end of the limiting pin 10 to the reserved threaded hole on the outer plate 2 of the footplate, thus completing the limiting installation of the locking plate 9 on the bottom surface of the outer plate 2. At this time, there is a gap between the limiting end 13 and the locking plate 9 without contact, which avoids the limiting end 13 and the locking plate 9 from colliding and having a large friction force, thereby reducing the resistance when the locking plate 9 slides.

[0034] A switch plate 19 is rotatably connected to the positioning plate 18. A linkage rod 20 is rotatably connected between the locking plate 9 and the switch plate 19. An operation port 21 for flipping the switch plate 19 is opened at the bottom of the foot inner plate 3. A protrusion 22 is formed by the limiting slot 16 protruding from the bottom surface of the locking plate 9. The protrusion 22 corresponds to the blocking part 7.

[0035] When installing the foot assembly, the locking member 4 is passed through the through hole 8 of the outer foot plate 2, so that the blocking part 7 of the locking member 4 passes through the guide slot 15 of the locking plate 9, and the mounting part 6 of the locking member 4 is located in the guide slot 15 of the locking plate 9. Then, the switch plate 19 is pressed, and the switch plate 19 drives the locking plate 9 to slide towards the positioning plate 18 through the linkage rod 20. The guide part 12 of the limit pin 10 and the guide slot 11 of the locking plate 9 provide movement guidance, realizing the directional sliding of the locking plate 9. The mounting part 6 enters the limit slot 16 from the guide slot 15, ensuring the uniqueness of the movement path of the locking plate 9, reducing the risk of installation errors, and avoiding problems such as component misalignment and missed steps that are common in traditional bolt assembly; when the blocking part 7 and the protrusion 22 When the components are in contact, they are in close contact with each other, resulting in significant friction. The locking plate 9 cannot slide freely, achieving mechanical self-locking. The blocking part 7 blocks the axial disengagement of the mounting part 6 from the limiting slot 16, allowing the locking part 4 to restrict the foot assembly from freely detaching from the column 1. This method is quick and easy to assemble, saving time and effort. It replaces the traditional screw fastening method, overcomes the thread wear problem caused by repeated tightening and loosening of traditional bolts, eliminates the dependence on professional tools (such as electric screwdrivers and torque wrenches), and solves the problems of insufficient stability due to loosening caused by manual tightening, or stress concentration and damage to components due to overtightening, thus ensuring the performance of the product. When disassembling, the switch plate 19 is pulled up, and the locking plate 9 is slid in the opposite direction and reset through the linkage rod 20, allowing the foot assembly to be removed.

[0036] A guide slope 23 is provided between the protrusion 22 and the bottom surface of the locking plate 9. During the sliding process of the locking plate 9, the guide slope 23 plays the role of guiding the blocking part 7 to fit with the protrusion 22, which improves the convenience of assembly.

[0037] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A quick-release and detachable height-adjustable desk base structure, comprising: A column and base assembly, the base assembly including an outer base plate and an inner base plate with a cavity, the outer base plate being disposed on the inner base plate and connected to the column; Its features are: A switch plate is rotatably connected inside the cavity, a locking plate is slidably connected to the bottom surface of the outer foot plate, a linkage rod is rotatably connected between the locking plate and the switch plate, and an operation port for flipping the switch plate is opened at the bottom of the inner foot plate. A locking member is connected between the column and the outer base plate. The locking member has a diameter-changing part. The locking plate is provided with a diameter-changing limiting groove. The diameter-changing limiting groove is connected with the diameter-changing part so that the locking member restricts the base assembly from freely detaching from the column.

2. The quick-release and detachable height-adjustable table leg structure according to claim 1, characterized in that: The variable diameter section includes a mounting section and a blocking section. The cross-sectional diameter of the blocking section is larger than that of the mounting section. The variable diameter limiting groove includes a guide groove and a limiting groove. The guide groove communicates with the limiting groove. The cross-sectional diameter of the guide groove is larger than that of the limiting groove. The guide groove corresponds to the blocking section, and the limiting groove corresponds to the mounting section.

3. The quick-release and detachable height-adjustable table leg structure according to claim 2, characterized in that: The limiting slot protrudes from the bottom surface of the locking plate and forms a protrusion, which corresponds to the blocking part.

4. The quick-release and detachable height-adjustable table leg structure according to claim 3, characterized in that: A guide slope is provided between the protrusion and the bottom surface of the locking plate, and the guide slope is used to guide the blocking part to fit into the protrusion.

5. The quick-release and detachable height-adjustable table leg structure according to claim 1, characterized in that: A limit pin is screwed between the locking plate and the outer foot plate.

6. The quick-release and detachable height-adjustable table leg structure according to claim 5, characterized in that: The locking plate is provided with a guide slot, the limiting pin is provided with a guide part corresponding to the guide slot, the limiting pin is provided with a limiting end, and the cross-sectional diameter of the limiting end is larger than the cross-sectional diameter of the guide slot.

7. The quick-release and detachable height-adjustable table leg structure according to claim 6, characterized in that: There is a gap between the limiting end and the locking plate.

8. The quick-release and detachable height-adjustable table leg structure according to claim 1, characterized in that: The cavity is equipped with a positioning plate, which is rotatably connected to the switch plate.

9. The quick-release and detachable height-adjustable table leg structure according to claim 8, characterized in that: The inner plate of the footplate is fixed to the positioning plate by fasteners.

10. The quick-release and detachable height-adjustable table leg structure according to claim 1, characterized in that: The locking element is screwed and fixed to the column.

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