Pitch shaft assembly of display

Abstract

The utility model relates to a display pitch axis assembly. The display pitch axis assembly comprises a U-shaped sheet metal part on the side of a display, a hinge seat, a positioning shaft, a torsion spring and a friction assembly. The hinge seat is provided with a double-lug support which is correspondingly attached to the side face of a double-arm plate of the U-shaped sheet metal part. The positioning shaft penetrates through the double-lug support and the double-arm plate to form a positioning structure of the double-lug support and the double-arm plate, friction assemblies are arranged at the two extending ends of the positioning shaft in a penetrating mode respectively, and the friction force between the positioning shaft and the hinge seat or the U-shaped sheet metal part is adjusted through an adjusting bolt at one end of the positioning shaft. The number of the torsion springs is two, the torsion springs are symmetrically arranged on the middle shaft section of the positioning shaft in a sleeved mode, one arm end of each torsion spring is clamped on the U-shaped sheet metal part, the other arm end of each torsion spring is clamped on the hinge seat, and the two torsion springs jointly form a load bearing. According to the structure, the two symmetrically-arranged torsion springs can be contained between the hinge seat and the matching faces on the two sides of the U-shaped sheet metal part, and the bearing capacity is high; two friction assemblies are arranged at the two ends of the positioning shaft, and pitching adjustment and hovering are more stable.

Description

Technical fields:

[0001] This utility model belongs to the field of monitor bracket technology, and specifically relates to a monitor tilt axis assembly, particularly employing a combination of torsion spring and friction damping. Background technology:

[0002] The stand is used to suspend the monitor and the tilt adjustment axis assembly. It not only bears the weight of the monitor but also has the dual function of self-positioning for tilt angle adjustment, such as:

[0003] CN202320666123.3 discloses a hybrid bracket adapter assembly, including a connecting plate for fixing a display, a positioning shaft, a hinge seat, a torsion spring, and a friction assembly. The connecting plate is rotatably positioned on the hinge seat via the positioning shaft, and the torsion spring and friction assembly maintain their load-bearing function. The hinge seat has a flat shaft head and a shaft connection portion that can connect to the bracket shaft. A double-eared support is provided at the rear of the connecting plate, which clamps both sides of the flat shaft head and is positioned by the positioning shaft. The friction assembly is installed between the contact surfaces of the double-eared support and the flat shaft head. The torsion spring is disposed inside the flat shaft head, with its two ends inserted into the flat shaft head and the double-eared support, respectively. This structure uses a single torsion spring, and the friction assembly has a relatively small diameter, resulting in relatively low load-bearing and damping forces.

[0004] The object of this invention is to find a more reasonable technical solution. Summary of the Invention:

[0005] The purpose of this invention is to design a display tilt axis assembly that utilizes the internal space of a U-shaped sheet metal part on the suspension side to set up a double torsion spring.

[0006] The present invention is implemented as follows: a display tilt axis assembly includes a U-shaped sheet metal part on the display side, a hinge seat, a positioning shaft, a torsion spring, and a friction assembly; the U-shaped sheet metal part is rotatably positioned on the hinge seat by the positioning shaft, and the torsion spring and friction assembly disposed between the two maintain the U-shaped sheet metal part's load-bearing and self-positioning functions; the hinge seat has a double-ear support, which is correspondingly attached to the side of the double-arm plate of the U-shaped sheet metal part; the positioning shaft passes through the double-ear support and the double-arm plate respectively to form a positioning structure for the two, and friction assemblies are respectively disposed at both ends of the positioning shaft, and the friction force between the positioning shaft and the hinge seat or the U-shaped sheet metal part is adjusted by an adjusting bolt at one end of the positioning shaft; there are two torsion springs, which are symmetrically sleeved on the middle section of the positioning shaft, with one arm of the torsion spring clamped on the U-shaped sheet metal part and the other arm clamped on the hinge seat, and the two torsion springs together form the load-bearing structure.

[0007] As a preferred embodiment, the hinge seat is a casting, and the outer side of the double-ear support is machined with a counterbore capable of accommodating the friction assembly; the double-ear support is attached to the outer side of the double-arm plate of the U-shaped sheet metal part, and a gasket is arranged between the double-ear support and the double-arm plate.

[0008] The U-shaped sheet metal part and the positioning shaft are synchronous structures capable of synchronous rotation relative to the hinge seat, and a friction assembly is arranged between the two ends of the positioning shaft and the hinge seat; the friction assembly comprises wear-resistant sheets embedded on the outer surface of the double-ear support of the hinge seat, friction sheets, and disc gaskets.

[0009] One end of the positioning shaft is provided with a flange (31, and the other end is provided with an adjusting bolt, and an iron flat gasket is further arranged between the adjusting bolt and the disc gasket in the friction assembly; at least one shaft flat surface is milled on the surface of the positioning shaft, and the double-arm plate of the U-shaped sheet metal part is machined with an anti-rotation shaft hole corresponding to the section of the positioning shaft.

[0010] The friction sheet in the friction assembly is machined with an anti-rotation through hole corresponding to the section of the positioning shaft, so that the positioning shaft passes through and drives synchronous rotation.

[0011] The counterbore of the double-ear support of the hinge seat is provided with a decorative cover, and the decorative cover corresponding to the entering end of the adjusting bolt of the positioning shaft is provided with a through hole for the adjusting bolt to enter and exit.

[0012] The gasket is formed by plastic, and a protruding point is formed on one side surface, which is inserted into the double-arm plate of the U-shaped sheet metal part or the double-ear support of the hinge seat.

[0013] The two torsion springs are arranged between the double-arm plates of the U-shaped sheet metal part and are penetrated by the positioning shaft, and a supporting sleeve is arranged between the positioning shaft and the torsion spring.

[0014] One side of the hinge seat is integrally formed with a cover, which can cover the outer side of one side of the torsion spring.

[0015] The utility model discloses an improved structure, which has the following beneficial effects: 1. There is a large space between the two sides of the hinge seat and the mating surface of the U-shaped sheet metal part, which can accommodate two symmetrically arranged torsion springs, and the bearing capacity is strong; 2. Two groups of friction assemblies are arranged at the two ends of the positioning shaft, which can provide balanced damping force and meet the stability of hovering during pitch adjustment; 3. The cooperation space is reasonable, which makes the assembly of the friction assembly and the torsion spring easier. BRIEF DESCRIPTION OF DRAWINGS

[0016] The invention will be further described below in conjunction with specific examples:

[0017] Figure 1 It is a schematic diagram of the display pitch shaft assembly

[0018] Figure 2 It is an exploded schematic diagram of the display pitch shaft assembly

[0019] Figure 3 Front view of display pitch axis assembly

[0020] Figure 4 For Figure 3 Sectional view along A-A

[0021] Wherein

[0022] 1 - U-shaped sheet metal part; 11 - double-arm plate; 111 - reserved hole; 112 - notch; 12 - anti-rotation shaft hole;

[0023] 13 - gasket; 131 - protrusion;

[0024] 2 - hinged seat; 21 - double-ear support; 22 - counterbore; 221 - embedded hole; 23 - decorative cover; 231 - through hole;

[0025] 24 - bearing recess; 25 - cover;

[0026] 3 - positioning shaft; 31 - flange; 32 - shaft plane; 33 - adjusting bolt;

[0027] 4 - torsional spring; 41 - support sleeve;

[0028] 5 - friction assembly; 51 - wear-resistant sheet; 511 - clamping tooth; 52 - friction sheet; 521 - anti-rotation through hole;

[0029] 53 - disc gasket; 54 - iron flat gasket; DETAILED DESCRIPTION

[0030] Referring to Figures 1 to 4 , the display pitch axis assembly includes a U-shaped sheet metal part 1 on the display side, a hinged seat 2, a positioning shaft 3, a torsional spring 4, and a friction assembly 5. The hinged seat 2 is a casting with a double-ear support 21, and a counterbore 22 capable of accommodating the friction assembly 5 is processed on the outer side of the double-ear support 21. The U-shaped sheet metal part 1 is bent and formed with a double-arm plate 11, the double-ear support 21 is attached to the outer side of the double-arm plate 11, and a gasket 13 is arranged between the double-ear support 21 and the double-arm plate 11 to eliminate the gap between the two and reduce the wear between the moving surfaces. Specifically, the gasket 13 is plastic formed with a protrusion 131 on one side surface, which is inserted into the reserved hole 111 of the double-arm plate 11 of the U-shaped sheet metal part by means of the protrusion 131; it can also be embedded in the double-ear support 21 of the hinged seat.

[0031] The positioning shaft 3 passes through the double-ear support 21 and the double-arm plate 11, forming a positioning structure between the U-shaped sheet metal part 1 and the hinged seat 2. The two ends of the positioning shaft 3 are provided with friction assemblies 5, and the friction force between the hinged seat 2 or the U-shaped sheet metal part 1 is adjusted by the adjusting bolt 33 at one end of the positioning shaft 3. The torsion spring 4 is symmetrical and is arranged on the middle shaft section of the positioning shaft 3. One arm end of the torsion spring 4 is clamped on the U-shaped sheet metal part 1, and the other arm end is clamped on the hinged seat 2. The outer end of the torsion spring is clamped on the notch 112 of the double-arm plate 11, and the inner end of the torsion spring is clamped on the bearing recess 24 of the hinged seat. Therefore, the two torsion springs 4 can also be a torsion spring with opposite helixes at both ends, which is an equivalent solution.

[0032] The two torsion springs 4 together form a load bearing. More specifically, the two torsion springs 4 are arranged on the positioning shaft 3 between the double-arm plate 11 of the U-shaped sheet metal part. A support sleeve 41 is arranged between the positioning shaft 3 and the torsion spring 4 to reduce the gap between the torsion spring 4 and the positioning shaft 3 and maintain the direction of the torsion force.

[0033] More specifically, the U-shaped sheet metal part 1 and the positioning shaft 3 are synchronous structures, that is, the positioning shaft 3 has at least one shaft plane 32 on the surface, and the double-arm plate 11 of the U-shaped sheet metal part is processed with an anti-rotation shaft hole 12 corresponding to the section of the positioning shaft 3. The positioning shaft 3 passes through the anti-rotation shaft hole 12, forming a synchronous rotation structure that can rotate synchronously relative to the hinged seat 2. The friction assembly 5 is arranged between the two ends of the positioning shaft 3 and the double-ear support 21 of the hinged seat. The friction assembly 5 includes a wear-resistant sheet 51 embedded on the outer surface of the double-ear support 21 of the hinged seat, a friction sheet 52, and a disc-type gasket 53. The double-ear support is also processed with an embedded hole 221 at the bottom of the counterbore 22. The wear-resistant sheet 51 has a clamping tooth 511 bent on the edge. The clamping tooth 511 is embedded in the embedded hole 221, forming an embedded structure. Of course, a protrusion is also provided at the bottom of the counterbore 22, and a tooth is processed on one side of the wear-resistant sheet 51. The two can also achieve the same purpose.

[0034] One end of the positioning shaft 3 is provided with a flange 31, and the other end is provided with an adjusting bolt 33. One end of the flange 31 abuts against the disc-type gasket 53 of the friction assembly, and the other end abuts against the disc-type gasket 53 through the adjusting bolt 33, forming a friction force, that is, a damping force adjustable structure. In order to prevent the adjusting bolt 33 from moving during pitch adjustment, an iron flat gasket 54 is arranged between the adjusting bolt 33 and the disc-type gasket 53.

[0035] Further, the friction sheet 52 in the friction assembly is processed with an anti-rotation through hole 521 corresponding to the section of the positioning shaft 3, for the positioning shaft 3 to pass through and drive synchronous rotation. It ensures that the rotation friction is between the friction sheet 52 and the wear-resistant sheet 51.

[0036] In addition, the counterbore 22 of the double-ear support of the hinged seat is also provided with a decorative cover 23. The decorative cover 23 corresponding to the positioning shaft adjusting bolt 33 entering one end is provided with a through hole 231 for the adjusting bolt 33 to pass through, facilitating the adjustment of the tool. Since the U-shaped sheet metal part 1 and the hinged seat 2 are matched through the two sides, the middle part has a large space capable of accommodating the torsional spring 4. In order to avoid the influence of the exposed torsional spring on the appearance, a cover 25 can be integrally formed on one side of the U-shaped sheet metal part 1 or the hinged seat 2, which can cover one side of the outer side of the torsional spring 4. In the figure, the cover 25 is formed on the hinged seat, and only on the upper side of the hinged seat 2. The lower part serves as an assembly operation space.

[0037] The U-shaped sheet metal part 1 and the hinged seat 2 can also be designed interchangeably, or on the basis of the above example, the double-arm plate 11 of the U-shaped sheet metal part is attached to the outer side of the double-ear support 21 of the hinged seat, and the friction assembly 5 and the double-arm plate 11 form a moving friction, which does not affect the load bearing and damping positioning.

Claims

1. A display tilt axis assembly, comprising a display side U-shaped sheet metal part (1), a hinged seat (2), a positioning shaft (3), a torsion spring (4) and a friction assembly (5); the U-shaped sheet metal part (1) is rotatably positioned on the hinged seat (2) through the positioning shaft (3), and the U-shaped sheet metal part (1) has a load-bearing and self-positioning function maintained by the torsion spring (4) and the friction assembly (5) arranged therebetween; characterized in that: The hinged seat (2) has double-ear supports (21) corresponding to the sides of the double-arm plates (11) of the U-shaped sheet metal part (1); the positioning shafts (3) pass through the double-ear supports (21) and the double-arm plates (11) respectively, forming the positioning structure of the two, and the two ends of the positioning shafts (3) are provided with friction assemblies (5), and the friction force between the positioning shafts (3) and the hinged seat (2) or the U-shaped sheet metal part (1) is adjusted by the adjusting bolts (33) at one end of the positioning shafts (3); the torsion springs (4) are two and symmetrically sleeved on the middle shaft sections of the positioning shafts (3), one arm end of the torsion springs (4) is clamped on the U-shaped sheet metal part (1), and the other arm end is clamped on the hinged seat (2), and the two torsion springs (4) jointly form a load bearing.

2. A display tilt axis assembly according to claim 1, wherein: The hinged seat (2) is a casting, and the double-ear supports (21) are provided with counterbores (22) on the outer sides of the double-ear supports (21) for accommodating the friction assemblies (5); the double-ear supports (21) are attached to the outer sides of the double-arm plates (11) of the U-shaped sheet metal part (1), and the double-ear supports (21) and the double-arm plates (11) are provided with spacers (13) therebetween.

3. A display tilt axis assembly according to claim 1 or 2, characterised in that: The U-shaped sheet metal part (1) and the positioning shafts (3) are synchronous structures and can rotate synchronously relative to the hinged seat (2), and the friction assemblies (5) are arranged between the two ends of the positioning shafts (3) and the hinged seat (2); the friction assemblies (5) include wear-resistant plates (51) embedded on the outer surfaces of the double-ear supports (21) of the hinged seat, friction plates (52), and disc spacers (53).

4. A display tilt axis assembly according to claim 3, wherein: One end of the positioning shaft (3) is provided with a flange (31), and the other end is provided with an adjusting bolt (33), and an iron flat spacer (54) is further arranged between the adjusting bolt (33) and the disc spacer (53) in the friction assembly; at least one shaft plane (32) is milled on the surface of the positioning shaft (3), The double-arm plates (11) of the U-shaped sheet metal part are provided with anti-rotation shaft holes (12) corresponding to the sections of the positioning shafts (3).

5. A display tilt axis assembly according to claim 4, wherein: The friction plates (52) in the friction assembly are provided with anti-rotation through holes (521) corresponding to the sections of the positioning shafts (3), for the positioning shafts (3) to pass through and drive synchronous rotation.

6. A display tilt axis assembly according to claim 2, wherein: The counterbores (22) of the double-ear supports of the hinged seat are provided with decorative covers (23), and the decorative covers (23) corresponding to the entering ends of the positioning shaft adjusting bolts (33) are provided with through holes (231) for the adjusting bolts (33) to pass through.

7. A display tilt axis assembly according to claim 2, wherein: The spacers (13) are plastic formed, and the spacers (13) are provided with protrusions (131) on one side surface, and the protrusions (131) are inserted into the double-arm plates (11) of the U-shaped sheet metal part (1) or the double-ear supports (21) of the hinged seat (2).

8. A display tilt axis assembly according to claim 1 or 2, characterized by: The two torsion springs (4) are arranged between the double-arm plates (11) of the U-shaped sheet metal part (1) and are passed through by the positioning shafts (3), and a support sleeve is arranged between the positioning shafts (3) and the torsion springs (4).

9. A display tilt axis assembly according to claim 1 or 2, characterized by: A cover (25) is integrally formed on one side of the hinged seat (2), and the cover (25) can cover one side of the torsion springs (4).

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