CN115307033A

CN115307033A - Base mechanism for quickly clamping tabletop

Info

Publication number: CN115307033A
Application number: CN202210932794.XA
Authority: CN
Inventors: 吴易景钊
Original assignee: Ningbo Jinghe Health Technology Co ltd
Current assignee: Ningbo Jinghe Health Technology Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-11-08

Abstract

The invention relates to a base mechanism for quickly clamping a desktop, which comprises a front arm, a rear arm, a base clamping structure, a front arm quick-release structure, a rear arm quick-release structure, a base quick-release structure and a head friction compensation structure, wherein the front arm and the rear arm are connected through the front arm quick-release structure and the rear arm quick-release structure, the rear arm is connected with the base through the rear arm quick-release structure and the base quick-release structure, the base clamping structure is arranged below the base, the base is clamped and fixed on the desktop through the base clamping structure, and the head friction compensation structure is arranged at the front end of the front arm, so that the front arm has damping feeling during rotation adjustment. The base mechanism for rapidly clamping the desktop has a head friction compensation function, the front arm freely rotates in the horizontal direction, damping sense is generated during adjustment through mechanism friction compensation, and free stop can be realized. This structure still has rapid disassembly structure, between preceding back arm and between back arm and base, all adopts rapid disassembly's structure, can not need specialized tool.

Description

Base mechanism for quickly clamping tabletop

Technical Field

The invention relates to the field of mechanical structures, in particular to the field of supporting devices, and particularly relates to a base mechanism for rapidly clamping a desktop.

Background

The support arm among the prior art usually adopts the mode of adjusting the upper arm dynamics, uses tools such as allen key usually. The support arm base of the existing support arm is troublesome to operate and inconvenient to use when a pre-adjusting and quick clamping function is used. It is comparatively loaded down with trivial details when current support arm is dismantled, it is not very convenient to use.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the base mechanism which has the advantages of simple structure, simplicity and convenience in operation and wide application range and can be used for rapidly clamping the desktop.

In order to achieve the above object, the base mechanism of the present invention for rapidly clamping a desktop is as follows:

the base mechanism for quickly clamping the desktop is mainly characterized by comprising a front arm, a rear arm, a base clamping structure, a front arm and rear arm quick-release structure, a rear arm, a base quick-release structure and a head friction compensation structure, wherein the front arm and the rear arm are connected through the front arm and rear arm quick-release structure;

base clamping structure include first base splint, second base splint and reference column, first base splint install the below at the base perpendicularly, base clamping structure place on the desktop, the latter half of first base splint 8a plurality of square holes have, every square hole corresponds different desktop thickness scope, second base splint put under the desktop and upwards push up to suitable centre gripping thickness, the card foot card of second base splint is gone into in square hole or the rectangular hole that first base splint correspond, the both ends of reference column pack into respectively in the mounting hole of second base splint both sides, fix second base splint on first base splint through the reference column, first base splint on be equipped with a hole, the reference column pass the hole on the first base splint for second base splint drop when preventing to adjust.

Preferably, base clamping structure still include spanner and screw, the screw install in the screw of base top, second base splint screw hole has, the screw pass second base splint screw hole for through fenestrate mode installation base clamping structure, screw clockwise through the spanner and screw tight desktop, perhaps anticlockwise screw loose screw and take out base clamping structure.

Preferably, the head friction compensation structure comprises a second tapered block, a front arm joint and a first tapered block, wherein the first tapered block and the second tapered block are respectively installed on two sides of the front arm joint, the first tapered block, the second tapered block and the front arm joint are in tapered surface fit, so that semicircular structures on two sides of the front arm joint are expanded outwards, an inner hole in the front arm is expanded tightly, damping adjustment of the front arm is achieved, and the front arm can be stopped and fixed when freely rotating to any position.

Preferably, the head friction compensation structure further comprises an inner hexagonal socket head screw and a hexagonal nut, the hexagonal socket head screw sequentially penetrates through the second tapered block, the front arm joint and the first tapered block and is meshed with the hexagonal nut, and the first tapered block and the second tapered block are respectively connected and fixed on two sides of the front arm joint through the inner hexagonal socket head screw.

Preferably, the forearm comprises a first forearm assembly and a second forearm assembly, the first forearm assembly and the second forearm assembly are buckled and combined to form the forearm, and the forearm joint, the first tapered block and the second tapered block are all arranged between the first forearm assembly and the second forearm assembly.

Preferably, the fixing hole is a square hole or a rectangular hole.

Preferably, the screw is a socket head cap screw.

Preferably, the front and rear arm quick release structure comprises a rear arm connecting block, a first plastic ring and a first plastic bushing, the rear arm connecting block is fixed at the tail end of the front arm, the tail end of the rear arm connecting block is a cylinder, a tapered groove is formed in the top end of the cylinder, the first plastic ring is sleeved in the tapered groove, the first plastic bushing is placed in a connecting hole above the rear arm, and the cylinder of the rear arm connecting block is aligned with and placed in the connecting hole of the rear arm.

Preferably, the rear arm and base quick-release structure comprises a second plastic ring and a second plastic bushing, the base is provided with a cylinder, the upper end of the cylinder is provided with a tapered groove, the plastic ring is sleeved in the tapered groove, the plastic bushing is placed in a connecting hole at the tail end of the rear arm, and the rear arm is aligned to the cylinder of the base.

Preferably, the rear arm is provided with a rear arm wire cover, the rear arm wire cover is locked and buckled into the rear arm through a screw, the rear arm wire cover is provided with a corrugated wire inlet, and the electric wire penetrates through holes of the corrugated wire inlet of the rear arm wire cover.

The base mechanism for rapidly clamping the desktop has a head friction compensation function, the front arm freely rotates in the horizontal direction, damping sense is generated during adjustment through mechanism friction compensation, and free stop can be realized. This structure still has quick detach structure, between preceding postbrachium and between postbrachium and base, all adopts quick assembly disassembly's structure, can not need specialized tool, direct operation. The base of the supporting arm is supported and clamped on a desktop, the clamping thickness can be adjusted, the clamping is fast, and the use is more convenient.

Drawings

Fig. 1 is a schematic structural view of a base mechanism of the quick clamping table top of the invention.

Fig. 2a is a schematic view of the base clamping structure of the base mechanism of the quick clamping table top of the present invention.

Fig. 2b is a schematic view of the base clamping structure of the base mechanism for rapidly clamping a desktop of the present invention clamped to the desktop.

Fig. 2c is a schematic view of the base clamping structure of the base mechanism of the quick clamping table top of the present invention fixed by screws.

Fig. 2d is a schematic view of the base clamping structure of the base mechanism for rapidly clamping the tabletop according to the present invention being fixed by a wrench.

Fig. 3a is a schematic structural view of the head friction compensation structure of the base mechanism of the quick clamping table top of the present invention.

Figure 3b is a side view of the head friction compensating structure of the base mechanism of the present invention for quickly clamping a table top.

FIG. 3c isbase:Sub>A cross-sectional view of the head friction compensation at angle A-A of FIG. 3 b.

Fig. 4 is a schematic structural view of the quick release structure of the front and rear arms of the base mechanism for quickly clamping the tabletop according to the invention.

Fig. 5 is a schematic structural view of the rear arm and the base quick release structure of the base mechanism for quickly clamping the tabletop according to the invention.

Fig. 6a is a schematic structural view of the rear arm wire cover of the base mechanism of the quick clamping table top of the invention.

Figure 6b is a side view of the rear arm wire cover of the base mechanism of the quick clamping tabletop of the present invention.

Fig. 7 is a schematic view of the base clamping structure of the base mechanism for quickly clamping a desktop according to the present invention during installation.

Fig. 8a is a schematic view of the anti-drop structure of the base mechanism of the quick clamping tabletop of the invention.

Figure 8b is a side view of the anti-drop structure of the base mechanism of the quick clamping table top of the present invention.

Fig. 9 is a schematic view of the through hole mounting of the base mechanism of the quick clamping tabletop of the invention.

Reference numerals:

1. front arm

2. Rear arm

3. Base seat

4. Base clamping structure

5. Quick-release structure for front and rear arms

6. Rear arm and base quick-release structure

7. Head friction compensation structure

8. First base splint

9. Second base splint

10. Positioning column

11. Screw nail

12. Spanner

13. First forearm assembly

14. Inner hexagonal socket head cap screw

15. Second taper block

16. Forearm joint

17. First conical block

18. Hexagon nut

19. Second forearm assembly

20. Rear arm connecting block

21. The first plastic ring

22. First plastic bushing

23. Second plastic ring

24. Second plastic bushing

25. Rear arm line cover

26. Cross recessed pan head screw

27. Electric wire

28. Second base splint screw hole

Detailed Description

In order that the technical contents of the present invention can be more clearly described, the present invention will be further described with reference to specific embodiments.

The base mechanism for rapidly clamping the desktop comprises a front arm 1, a rear arm 2, a base 3, a base clamping structure 4, a front arm and rear arm quick-release structure 5, a rear arm and base quick-release structure 6 and a head friction compensation structure 7, wherein the front arm 1 and the rear arm 2 are connected through the front arm and rear arm quick-release structure 5, the rear arm 2 and the base 3 are connected through the rear arm and base quick-release structure 6, the base clamping structure 4 is installed below the base 3, the base 3 is clamped and fixed on the desktop through the base clamping structure 4, and the head friction compensation structure 7 is installed at the front end of the front arm 1, so that the front arm 1 has damping feeling during rotation adjustment;

base clamping structure 4 include first base splint 8, second base splint 9 and reference column 10, first base splint 8 install perpendicularly in the below of base 3, base clamping structure 4 place on the desktop, the latter half of first base splint 8a plurality of square holes have, every square hole corresponds different desktop thickness scope, second base splint 9 put under the desktop and upwards push up to suitable centre gripping thickness, the card foot card of second base splint 9 is gone into in the square hole that first base splint 8 corresponds, the both ends of reference column 10 pack into respectively in the mounting hole of second base splint 9 both sides, fix second base splint 9 on first base splint 8 through reference column 10, first base splint on be equipped with a hole, reference column 10 pass the hole on the first base splint, second base splint drop when preventing to adjust for second base splint drops when preventing to adjust. As a preferred embodiment of the present invention, the base clamping structure 4 further comprises a wrench 12 and a screw 11, the screw 11 is installed in a screw hole above the base 3, the second base plate has a second base plate threaded hole 28, the screw 11 passes through the second base plate threaded hole 28, and is used for installing the base clamping structure in a perforation manner, and the wrench 12 is used for tightening the screw 11 clockwise to clamp the desktop or loosening the screw 11 counterclockwise to take out the base clamping structure 4.

As a preferred embodiment of the present invention, the head friction compensation structure 7 includes a second conical block 15, a forearm joint 16 and a first conical block 17, the first conical block 17 and the second conical block 15 are respectively installed on two sides of the forearm joint 16, the first conical block 17, the second conical block 15 and the forearm joint 16 adopt conical surface fit, so that semicircular structures on two sides of the forearm joint 16 expand outwards, an inner hole inside the forearm 1 is tightened, damping adjustment of the forearm 1 is realized, and the forearm 1 can stop being fixed when freely rotating to any position.

As a preferred embodiment of the present invention, the head friction compensation structure 7 further includes an inner hexagonal socket head screw 14 and a hexagon nut 18, the hexagon socket head screw 11 sequentially passes through the second taper block 15, the front arm joint 16 and the first taper block 17 to engage with the hexagon nut 18, and the first taper block 17 and the second taper block 15 are respectively connected and fixed on two sides of the front arm joint 16 through the inner hexagonal socket head screw 14.

As a preferred embodiment of the invention, the forearm 1 comprises a first forearm assembly 13 and a second forearm assembly 19, the first forearm assembly 13 and the second forearm assembly 19 are buckled and combined to form the forearm 1, and the forearm joint 16, the first conical block 17 and the second conical block 15 are arranged between the first forearm assembly 13 and the second forearm assembly 19.

In a preferred embodiment of the present invention, the fixing hole is a square hole or a rectangular hole.

In a preferred embodiment of the present invention, the screw is a socket head cap screw.

As a preferred embodiment of the present invention, the front and rear arm quick release structure 5 includes a rear arm connecting block 20, a first plastic ring 21 and a first plastic bushing 22, the rear arm connecting block 20 is fixed at the rear end of the front arm 1, the rear end of the rear arm connecting block 20 is a cylinder, a tapered groove is formed at the top end of the cylinder, the first plastic ring 21 is sleeved in the tapered groove, the first plastic bushing 22 is placed in a connecting hole above the rear arm 2, and the cylinder of the rear arm connecting block 20 is aligned with and placed in the connecting hole of the rear arm 2.

As a preferred embodiment of the present invention, the rear arm and base quick release structure 6 includes a second plastic ring 23 and a second plastic bushing 24, the base 3 has a cylinder, the upper end of the cylinder has a tapered groove, the plastic ring is sleeved in the tapered groove, the plastic bushing is placed in a connecting hole at the end of the rear arm 2, and the rear arm 2 is aligned to the cylinder of the base 3.

In a preferred embodiment of the present invention, the rear arm 2 is provided with a rear arm wire cover 25, the rear arm wire cover 25 is locked and fastened into the rear arm 2 by a cross recessed pan head screw 26, the rear arm wire cover 25 is provided with a corrugated wire inlet, and an electric wire 27 is inserted into a hole of the corrugated wire inlet of the rear arm wire cover 25.

The embodiment of the invention has a base 3 structure, a head friction compensation structure 7, a quick release structure and a rear arm line cover 25 structure.

The base 3 is structurally as shown in fig. 2a to fig. 2d, when clamping, the assembly is placed on a table top, the second base clamping plate 9 is pushed upwards to adjust to a proper clamping thickness, the clamping feet of the second base clamping plate 9 are clamped into the square holes corresponding to the first base clamping plate 8, then the positioning column 10 is screwed into the second base clamping plate 9, and finally the screw 11 is screwed clockwise by the wrench 12 to clamp the table top. When loosening, the screw 11 is unscrewed counterclockwise by the wrench 12 and the assembly is removed.

An operator initially measures the thickness of a desktop (a clamping object), and directly and quickly clamps the bracket through a tool after presetting the position of the mounting interface. Can predetermine the installation interface, the tight bottom of need not boring is pressed from both sides fast again, compares with prior art, more has operating efficiency and convenience, can also predetermine the installing port position, has multiple mounting means.

The head friction compensation structure 7 is shown in fig. 3a to 3c, two sides of a forearm joint 16 are connected through a first conical block 17, a second conical block 15 and an inner hexagonal socket head cap screw 14; the first conical block 17, the second conical block 15 and the forearm joint 16 adopt conical surface matching, and the conical surfaces enable semicircular structures on two sides of the forearm joint 16 to expand outwards, and inner holes of the first forearm assembly 13 and the second forearm assembly 19 are expanded tightly, so that damping adjustment is realized.

The forearm 1 is free rotation structure in horizontal direction, through mechanism frictional force compensation, and the damping is felt when adjusting, can adjust to arbitrary position, can realize freely stopping. The tightness degree of the head friction compensation structure 7 is adjustable, the angle of the head is adjusted up and down, the conical surface matching structure and the tightness degree of the angle adjustment is realized by the adjusting screw 11.

Between preceding back arm 2 and between back arm 2 and base 3, adopt quick assembly disassembly structure, during the quick detach fast-assembling, do not need specialized tool, direct operation.

The principle of the quick-release structure between the front arm and the rear arm 2 is shown in fig. 4, a plastic ring is sleeved in a tapered groove at the tail end of the rear arm connecting block 20, a plastic bushing is placed in a hole of the rear arm 2, and a cylinder of the rear arm connecting block 20 is aligned with the hole of the rear arm 2 and is put down to complete assembly. When the rear arm connecting block 20 moves upwards, the plastic ring is opened by the conical surface of the rear arm connecting block 20, the tensioning plastic bush and the front arm 1 connecting block are not easy to take out. When the rear arm connecting block 20 needs to be taken down, the user only needs to pull upwards with force, and adjustment is not needed.

The principle of the quick-release structure between the rear arm 2 and the base 3 is shown in fig. 5, the plastic ring is sleeved, the plastic bush is placed in the hole of the rear arm 2 in the conical groove at the upper end of the cylinder of the base 3, the cylinder aligned with the base 3 is put down, when the rear arm 2 moves upwards, the plastic ring moves upwards, the conical surface of the base 3 struts the plastic bush, and the rear arm 2 is not easy to take out. When the rear arm 2 needs to be taken down, the user only needs to pull upwards with force without adjustment.

As shown in fig. 6a to 6b, the rear arm wire cover 25 is a corrugated wire inlet, and the wire is not easily detached when the cover 25 is used. The rear arm wire cover 25 is buckled in the rear arm 2 and locked by a cross-recessed pan head screw 26, the electric wire 27 penetrates through a hole of the wire cover, and the electric wire 27 cannot fall off due to the fact that the opening shape of the wire cover is a curve.

The action principle of the device is as follows:

1. clamping: each square hole corresponds to the thickness range of the desktop, the second base clamping plate 9 is pushed upwards to be adjusted to a proper clamping thickness, the clamping feet of the second base clamping plate 9 are clamped into the corresponding square holes of the first base clamping plate 8, and finally, the screw 11 is screwed clockwise by a wrench 12 to clamp the desktop, as shown in fig. 7;

2. loosening: firstly, loosening the screw 11 anticlockwise by using a wrench 12, and taking out the assembly;

3. and (3) perforation installation: taking out the positioning column 10 arranged on the first base clamping plate 8, and taking out the screw 11 of the second base clamping plate 9 to connect and clamp the desktop, as shown in fig. 9;

4. anti-falling device: a hole is arranged on the first base clamping plate 8 and a positioning column 10 is arranged on the hole, so that the second base clamping plate 9 can be prevented from falling off when the clamping thickness is adjusted, as shown in fig. 8a and 8 b;

the advantages are that: this mechanism can quick adjustment to the centre gripping thickness of needs, reduces the number of turns that the screw thread was adjusted, and convenient operation possesses the anti-drop function simultaneously, promotes user experience.

For a specific implementation of this embodiment, reference may be made to the relevant description in the above embodiments, which is not described herein again.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The base mechanism for rapidly clamping the desktop has a head friction compensation function, the front arm freely rotates in the horizontal direction, damping sense is generated during adjustment through mechanism friction compensation, and free stop can be realized. This structure still has quick detach structure, between preceding postbrachium and between postbrachium and base, all adopts quick assembly disassembly's structure, can not need specialized tool, direct operation. The base of the supporting arm supports and clamps on the desktop, can adjust the clamping thickness, is fast clamped and is more convenient to use.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. The base mechanism for quickly clamping the desktop is characterized by comprising a front arm, a rear arm, a base clamping structure, a front arm and rear arm quick-release structure, a rear arm, a base quick-release structure and a head friction compensation structure, wherein the front arm and the rear arm are connected through the front arm and rear arm quick-release structure;

base clamping structure include first base splint, second base splint and reference column, first base splint install the below at the base perpendicularly, base clamping structure place on the desktop, the latter half of first base splint have a plurality of square holes, every square hole corresponds different desktop thickness scope, second base splint put under the desktop and upwards push up to suitable centre gripping thickness, the card foot card of second base splint is gone into in the square hole that first base splint correspond, the both ends of reference column pack into respectively in the mounting hole of second base splint both sides, fix second base splint on first base splint through the reference column, first base splint on be equipped with a hole, the reference column pass the hole on first base splint for second base splint drops when preventing to adjust.

2. The base unit of claim 1, wherein the base clamp structure further comprises a wrench and a screw, the screw is mounted in a threaded hole above the base, the second base clamp has a threaded second base clamp hole, the screw passes through the threaded second base clamp hole for mounting the base clamp structure in a perforated manner, and the wrench is used to tighten the screw clockwise to clamp the table top or loosen the screw counterclockwise to remove the base clamp structure.

3. The base mechanism for rapidly clamping the tabletop according to claim 1, wherein the head friction compensation structure comprises a second conical block, a front arm joint and a first conical block, the first conical block and the second conical block are respectively installed on two sides of the front arm joint, the first conical block, the second conical block and the front arm joint are in conical surface fit, a semicircular structure on two sides of the front arm joint expands outwards, an inner hole in the front arm is tightened, damping adjustment of the front arm is achieved, and the front arm can be stopped to be fixed when freely rotating to any position.

4. The base mechanism for rapidly clamping a desktop according to claim 3, wherein the head friction compensation structure further comprises an inner hexagonal socket head cap screw and a hexagon nut, the hexagon socket head cap screw sequentially passes through the second tapered block, the front arm joint and the first tapered block to be meshed with the hexagon nut, and the first tapered block and the second tapered block are respectively connected and fixed on two sides of the front arm joint through the inner hexagonal socket head cap screw.

5. The base mechanism of claim 4 wherein the forearm comprises a first forearm assembly and a second forearm assembly, the first and second forearm assemblies being snap fit to form the forearm, the forearm joint, the first tapered block and the second tapered block being mounted between the first and second forearm assemblies.

6. The base mechanism of claim 1, wherein the fixing holes are square or rectangular holes.

7. A base mechanism for a quick-clamping table top as claimed in claim 1, wherein said screw is a socket head cap screw.

8. The base mechanism of the quick clamping table as claimed in any one of claims 1 to 7, wherein the quick release structure of the front and rear arms comprises a rear arm connecting block, a first plastic ring and a first plastic bushing, the rear arm connecting block is fixed on the rear end of the front arm, the rear end of the rear arm connecting block is a cylinder, the top end of the cylinder is provided with a tapered groove, the first plastic ring is sleeved in the tapered groove, the first plastic bushing is placed in the connecting hole above the rear arm, and the cylinder of the rear arm connecting block is aligned with and placed in the connecting hole of the rear arm.

9. The base mechanism of any one of claims 1 to 7, wherein the rear arm and the base quick release structure comprise a second plastic ring and a second plastic bushing, the base has a cylinder, the upper end of the cylinder has a tapered slot, the plastic ring is inserted into the tapered slot, the plastic bushing is placed in the connecting hole at the end of the rear arm, and the rear arm is aligned with and placed on the cylinder of the base.

10. The base mechanism of the fast clamping desktop according to any one of claims 1 to 7, wherein the rear arm is provided with a rear arm wire cover, the rear arm wire cover is locked and buckled into the rear arm through a screw, the rear arm wire cover is provided with a corrugated wire inlet, and the electric wire is threaded into the hole of the corrugated wire inlet of the rear arm wire cover.