CN217582867U - Torsional spring device and display support - Google Patents

Abstract

The utility model discloses a torsional spring device and display support. The torsion spring device comprises a fixed torsion mechanism and a detachable torsion mechanism, wherein the fixed torsion mechanism comprises a first connecting piece, a second connecting piece, a fixed torsion spring and a rotating shaft, the first connecting piece and the second connecting piece are connected in a rotating mode through the rotating shaft, the fixed torsion spring is sleeved on the rotating shaft, the fixed torsion spring comprises a first torsion arm and a second torsion arm, the first torsion arm is fixed to the first connecting piece in a limiting mode, the second torsion arm is fixed to the second connecting piece in a limiting mode, the detachable torsion mechanism can be detachably connected into an installation cavity on the second connecting piece, the detachable torsion mechanism connected into the installation cavity is fixed to the first connecting piece in a limiting mode, and preset torsion can be provided for rotation of the first connecting piece and the second connecting piece. The torsion spring device can output different torsion only by disassembling and assembling the detachable torsion mechanism, is simple to operate and high in efficiency, and each part for fixing the torsion mechanism is not required to be disassembled and assembled frequently, so that mechanical damage caused by frequent disassembly and assembly is avoided.

Description

Torsional spring device and display support

Technical Field

The utility model relates to a screen supports technical field, especially relates to a torsional spring device and display support.

Background

The screen is the essential display device of daily life and study, and the support that is used for supporting the screen has also produced different structural design and functional change along with the size and the usage of screen, according to user's user demand, the screen needs to lean forward, the back angle (TILT) is adjusted, and the gradient of screen needs to be adjusted in user's use promptly. The stability of the screen under a certain inclination is realized by achieving a stable balance between the force of the torsion spring in the bracket and the weight of the screen, and the improvement direction and trend of the bracket are realized by adopting a single bracket to match screens with different weights.

In order to realize that a rack can be matched with screens with various weights, in the prior art, a proper torsion spring is generally installed in a support aiming at the weight of the screen to be matched in an installation stage before leaving a factory, if the whole machine is assembled, screens with other weights need to be modified, parts related to the torsion spring need to be detached, then the torsion spring in the support is replaced, and the support with the replaced torsion spring can be used for bearing the screen with another weight. However, this adjustment method is not only cumbersome to operate, time-consuming and labor-consuming, but also risks damage during the process of disassembling and assembling the parts associated with the torsion spring.

Therefore, it is an urgent need to solve the technical problem of how to provide a torsion spring device and a display bracket that can complete torque adjustment without disassembling the original torsion spring.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a torsion spring device, this torsion spring device's part need not carry out the output that all dismouting can realize different torsion values, not only easy operation, and work efficiency is higher, and the mechanical damage who produces is less.

To achieve the purpose, the utility model adopts the following technical proposal:

a torsion spring apparatus comprising: the torsion fixing mechanism comprises a first connecting piece, a second connecting piece, a fixing torsion spring and a rotating shaft, wherein the first connecting piece and the second connecting piece are in rotating connection through the rotating shaft; the detachable torsion mechanism is detachably connected in the installation cavity and has a first state connected in the installation cavity and a second state arranged outside the installation cavity, and the detachable torsion mechanism is configured to be in the first state, the detachable torsion mechanism and the first connecting piece are fixed in a limiting mode, and preset torsion is provided for rotation of the first connecting piece and the second connecting piece.

Preferably, the detachable torsion mechanism comprises an installation seat, a constant force spring and a pushing piece, an accommodating cavity and an avoiding opening are formed in the installation seat, the constant force spring is arranged in the accommodating cavity, the free end of the constant force spring is arranged outside the installation seat through the avoiding opening, the pushing piece is connected to the free end of the constant force spring, the pushing piece is configured to enable the detachable torsion mechanism to enter and exit the installation cavity when pushed and pulled, and the pushing piece is used for being fixed to the first connecting piece in a limiting mode.

Preferably, the first connecting piece extends into one of the partial structure in the installation cavity and the pushing piece, a clamping protrusion is arranged on one of the partial structure and the pushing piece, a clamping hole is formed in the other one of the partial structure and the pushing piece, and the clamping protrusion can be clamped into the clamping hole.

Preferably, the promotion piece is including joint portion, connecting portion and the promotion portion that connects gradually, the joint is protruding perhaps the card hole sets up in the joint portion, connecting portion with the free end of deciding the power spring is connected, promotion portion arranges in outside the installation cavity.

Preferably, the accommodating cavity is convexly provided with a mounting column, and the fixed-force spring is sleeved on the mounting column.

Preferably, the mount pad includes pedestal and lid, hold the chamber with it all sets up to dodge the mouth on the pedestal, the lid lock joint is in hold the opening part in chamber.

Preferably, a first connecting hole penetrates through the cover body, and a second connecting hole is formed in the mounting column along the axis direction; the mounting seat further comprises a locking screw, and the locking screw penetrates through the first connecting hole and is connected into the second connecting hole.

Preferably, the torsion spring device further comprises a first positioning piece and a second positioning piece, the first positioning piece is arranged on the installation seat, the second positioning piece is arranged in the installation cavity, and the first positioning piece and the second positioning piece are matched to realize the positioning of the detachable torsion mechanism in the installation cavity.

Preferably, one of the first positioning element and the second positioning element is a magnet element, and the other one is a magnetic element.

A second object of the present invention is to provide a display stand, which is not only simple, fast and time-saving, but also does not require disassembling all parts when adjusting the torque of the output of the torsion spring device, thereby reducing the mechanical damage caused by the disassembly.

To achieve the purpose, the utility model adopts the following technical proposal:

a display support comprises a support and the torsion spring device, wherein the first connecting piece is used for being connected with a screen, and the support is connected to the second connecting piece.

The utility model has the advantages that:

the utility model provides a torsional spring device, this torsional spring device is through setting up the installation cavity on the second connecting piece at fixed torsion mechanism, and can dismantle torsion mechanism detachably and connect in the installation cavity, thereby make can dismantle torsion mechanism have the first state of connection in the installation cavity and arrange the outer second state of installation cavity in, when can dismantling torsion mechanism and be in the first state, fixed torsional spring and can dismantle torsion mechanism simultaneous action, this torsional spring device can export a great torsion, and when can dismantling torsion mechanism and be in the second state, only fixed torsional spring effect, this torsional spring device can export a less torsion. The torsion spring device can output different torsion only by disassembling and assembling the detachable torsion mechanism, is simple to operate and high in efficiency, and avoids mechanical damage caused by frequent disassembly and assembly because each part of the fixed torsion mechanism is not required to be disassembled and assembled frequently.

Drawings

Fig. 1 is a schematic structural view of a detachable torsion mechanism of a torsion spring device according to an embodiment of the present invention at a certain viewing angle when the detachable torsion mechanism is in a first state;

fig. 2 is a schematic structural view of the detachable torsion mechanism of the torsion spring device according to the embodiment of the present invention at another viewing angle when the detachable torsion mechanism is in the first state;

fig. 3 is a schematic structural view of the detachable torsion mechanism of the torsion spring device according to the embodiment of the present invention in the second state;

fig. 4 is a sectional view of the detachable torsion mechanism of the torsion spring device according to the embodiment of the present invention in a first state;

fig. 5 is an exploded view of the torsion spring device according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first connecting member of the torsion spring device according to the embodiment of the present invention;

fig. 7 is a schematic structural view of a second connecting member and a magnet member of the torsion spring device according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a detachable torsion mechanism of the torsion spring device according to the embodiment of the present invention;

FIG. 9 is a top plan view of the structure shown in FIG. 1 with the screen mounting plate removed;

FIG. 10 is a bottom view of the structure shown in FIG. 1 with the screen mounting plate removed;

fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present invention.

In the figure:

100. a torsion spring device;

101. a first connecting member; 1011. a first vertical plate; 1012. a first transverse plate; 1013. clamping the bulges; 1014. a screen mounting plate;

102. a second connecting member; 1020. a mounting cavity; 1021. a second vertical plate; 1022. a second transverse plate; 1023. a vertical plate;

103. fixing the torsion spring; 104. a rotating shaft;

105. a detachable torsion mechanism; 1051. a constant force spring; 1052. pushing the sheet; 10521. a clamping part; 10522. a connecting portion; 10523. a pushing part; 10524. clamping holes; 1053. a base body; 10531. an accommodating chamber; 10532. avoiding the mouth; 1054. a cover body; 10541. a first connection hole; 1055. a locking screw; 1056. mounting a column; 10561. a second connection hole; 1057. a magnetic member;

106. a magnet piece;

200. a screen; 300. and (3) a bracket.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides a torsion spring device, which can be used in a display device, such as a display screen of a computer, to realize a rotational connection between a screen of the display screen and a bracket supporting the screen. Of course, besides the display device, the torsion spring device may also be used in other devices that need to be connected in a rotating manner, which is not listed here.

As shown in fig. 1 to 5, the torsion spring device 100 includes a fixed torsion mechanism and a detachable torsion mechanism 105, the fixed torsion mechanism can provide a fixed torsion, the detachable torsion mechanism 105 can provide an additional torsion, the detachable torsion mechanism 105 is assembled to the fixed torsion mechanism so that the torsion spring device 100 can output a larger torsion, and the detachable torsion mechanism 105 is detached from the fixed torsion mechanism so that the torsion spring device 100 can output a smaller torsion.

Specifically, the fixed torsion mechanism includes a first link 101, a second link 102, a fixed torsion spring 103, and a rotation shaft 104. The first connecting piece 101 and the second connecting piece 102 are rotatably connected through a rotating shaft 104, and a fixed torsion spring 103 is sleeved on the rotating shaft 104. The first connecting member 101 and the second connecting member 102 are respectively used for connecting with two appearance members which need to be connected in a rotating manner, such as the screen 200 and the bracket 300, in the embodiment, the first connecting member 101 is used for connecting with the screen 200, the second connecting member 102 is used for connecting with the bracket 300, and the second connecting member 102 is a casting. The fixed torsion spring 103 comprises a first torsion arm and a second torsion arm, the first torsion arm is fixed with the first connecting piece 101 in a limiting mode, the second torsion arm is fixed with the second connecting piece 102 in a limiting mode, and the second connecting piece 102 is provided with an installation cavity 1020. Detachable torque mechanism 105 is detachably coupled within mounting cavity 1020 and has a first configuration coupled within mounting cavity 1020 (shown in fig. 2) and a second configuration disposed outside of mounting cavity 1020 (shown in fig. 3). When the detachable torsion mechanism 105 is in the first state, i.e. the detachable torsion mechanism 105 is installed in the fixed torsion mechanism, the detachable torsion mechanism 105 is fixed to the first connecting member 101 in a limited manner, so that the detachable torsion mechanism 105 can provide a preset torsion for the rotation of the first connecting member 101 and the second connecting member 102.

The torsion spring device 100 is provided with a mounting cavity 1020 on the second connecting piece 102 for fixing the torsion mechanism, and the detachable torsion mechanism 105 is detachably connected in the mounting cavity 1020, so that the detachable torsion mechanism 105 has a first state connected in the mounting cavity 1020 and a second state arranged outside the mounting cavity 1020. When the detachable torsion mechanism 105 is in the first state, the fixed torsion spring 103 and the detachable torsion mechanism 105 act simultaneously, the torsion spring device 100 can output a larger torsion force, and when the detachable torsion mechanism 105 is in the second state, only the fixed torsion spring 103 acts, and the torsion spring device 100 can output a smaller torsion force. The torsion spring device 100 can output different torsion only by disassembling and assembling the detachable torsion mechanism 105, is simple to operate and high in efficiency, and because each part of the fixed torsion mechanism is not required to be disassembled and assembled frequently, mechanical damage caused by frequent disassembly and assembly is avoided, and the service life of the whole torsion spring device 100 is prolonged.

Specifically, in the present embodiment, as shown in fig. 6, the first connecting member 101 includes a first vertical plate 1011 and two first horizontal plates 1012 connected in a U shape, the two first horizontal plates 1012 are respectively vertically connected to two sides of the first vertical plate 1011, and each first horizontal plate 1012 is provided with a first through hole for allowing the rotating shaft 104 to pass through. Optionally, the first connecting member 101 further comprises a screen mounting plate 1014, and the screen mounting plate 1014 is connected to a side of the first vertical plate 1011 away from the two first horizontal plates 1012 and is used for mounting the screen 200.

As shown in fig. 7, the second connecting member 102 includes two second vertical plates 1021 and two second horizontal plates 1022, where the number of the second horizontal plates 1022 is two, the two second horizontal plates 1022 are respectively disposed at two ends of the second vertical plates 1021, the second vertical plates 1021 and the two second horizontal plates 1022 are connected in a U shape, and each of the second horizontal plates 1022 is provided with a second through hole for allowing the rotating shaft 104 to pass through. The mounting cavity 1020 is formed by a U-shaped space defined by the second vertical plate 1021 and the two second horizontal plates 1022.

When the first connecting member 101, the second connecting member 102 and the rotating shaft 104 are assembled, as shown in fig. 9 and 10, the two first transverse plates 1012 are placed between the two second transverse plates 1022, then the free end of the rotating shaft 104 sequentially passes through the two sets of second through holes and the first through hole, and finally the free end of the rotating shaft 104 is locked by the nut, so that the first connecting member 101 and the second connecting member 102 can be rotatably connected by the rotating shaft 104. It should be noted that, before the first connecting member 101 and the second connecting member 102 are connected, the torsion spring 103 is first placed between the two first transverse plates 1012, and the assembly of the rotating shaft 104 and the torsion spring 103 is completed when the rotating shaft 104 passes through the two first transverse plates 1012.

Further, in the present embodiment, the first torsion arm and the second torsion arm of the first torsion spring 103 are located on both sides of the first torsion spring 103. Optionally, in order to realize the limit fixation of the first torque arm and the first connecting member 101, a first engaging groove (not shown in the figure) is provided on the first connecting member 101, and the first torque arm is engaged in the first engaging groove. The first torsion arm can be a straight rod or a bent rod, and the specific shape of the first torsion arm is determined according to the opening direction of the first clamping groove. Of course, besides the first clamping groove, a first limiting hole may also be formed in the first connecting member 101, and the end of the first torque arm is inserted into the first limiting hole, so as to realize the limiting fixation of the first connecting member 101 and the first torque arm.

Optionally, in order to realize the limiting fixation of the second torque arm and the second connecting member 102, a second clamping groove (not shown in the figure) is provided on the second connecting member 102, and the second torque arm is clamped into the second clamping groove. The second torque arm can be a straight rod or a bent rod, and the specific shape of the second torque arm is determined according to the opening direction of the second clamping groove. Of course, in addition to the second clamping groove, a second limiting hole may also be formed in the second connecting member 102, and the end of the second torque arm is inserted into the second limiting hole, so as to limit and fix the second connecting member 102 and the second torque arm.

With continued reference to fig. 7, the second connecting member 102 further includes a vertical plate 1023, and the vertical plate 1023 is connected to the second vertical plate 1021 and is located at a side far from the two second horizontal plates 1022. In this embodiment, the vertical plate 1023 is L-shaped, one end of the vertical plate 1023 is vertically connected to the middle of the second vertical plate 1021, and the other end of the vertical plate 1023 can be inserted into the bracket 300, so that the second connector 102 is connected with the bracket 300.

As shown in fig. 8, in the present embodiment, the detachable torsion mechanism 105 includes a mount, a constant force spring 1051, and a push plate 1052. The mounting seat is used for mounting the constant force spring 1051 and the pushing sheet 1052, specifically, the mounting seat is provided with an accommodating cavity 10531 and an avoiding opening 10532, and the avoiding opening 10532 penetrates through the side wall of the mounting seat and is communicated with the accommodating cavity 10531. The constant force spring 1051 is disposed in the accommodating cavity 10531, and the free end of the constant force spring 1051 is disposed outside the mounting seat through the avoiding opening 10532. Alternatively, the constant force spring 1051 has a cylindrical shape and the mounting seat has a cylindrical shape. A push tab 1052 is attached to the free end of the constant force spring 1051, pushing the push tab 1052 enables the removable torsion mechanism 105 to move. Specifically, by pushing the pushing piece 1052 toward the direction close to the installation cavity 1020, the detachable torsion mechanism 105 can be installed into the installation cavity 1020; pulling the push tab 1052 away from the mounting cavity 1020, the detachable torsion mechanism 105 can be pulled out of the mounting cavity 1020. In addition, the pushing plate 1052 after entering the installation cavity 1020 can be fixed to the first connecting part 101 in a limiting manner, so that the detachable torsion mechanism 105 can be connected between the first connecting part 101 and the second connecting part 102, and further the constant force spring 1051 can stably output a torsion force. Optionally, the push tab 1052 is an iron tab.

The detachable torsion mechanism 105 has a compact structure, occupies a small space, is convenient to disassemble and assemble, and can improve the stability of the torsion output by the torsion spring device 100 because the constant force spring 1051 can provide constant torsion. Of course, in other embodiments, a torsion spring may be used instead of the constant force spring 1051, as long as the detachable torsion mechanism 105 can achieve the purpose of outputting the torsion force.

Further, as shown with continued reference to fig. 8, the mounting base includes a base body 1053 and a cover body 1054, the accommodating cavity 10531 and the avoiding opening 10532 are both disposed on the base body 1053, and the cover body 1054 is fastened to the opening of the accommodating cavity 10531. The seat body 1053 and the cover body 1054 which are separately arranged are easy to assemble, and the constant force spring 1051 can be conveniently assembled and disassembled. Furthermore, a mounting column 1056 is disposed in the accommodating cavity 10531, and the constant force spring 1051 is sleeved on the mounting column 1056, so as to improve the stability of the constant force spring 1051 in the mounting seat.

In order to improve the assembly stability of the base 1053 and the cover 1054, as shown in fig. 8, a first connection hole 10541 is formed through the cover 1054, a second connection hole 10561 is formed along the axis of the mounting post 1056, specifically, the second connection hole 10561 is a threaded hole, and the locking screw 1055 passes through the first connection hole 10541 and is connected to the second connection hole 10561.

In order to realize the limit fixing of the pushing piece 1052 and the first connecting piece 101, as shown in fig. 6, 8 and 9, a catching protrusion 1013 is provided on a part of the structure of the first connecting piece 101 extending into the mounting cavity 1020, and a catching hole 10524 is provided on the pushing piece 1052, and the catching protrusion 1013 can be caught in the catching hole 10524. In this embodiment, since the ends of the two first transverse plates 1012 of the first connecting member 101, which are far away from the first riser 1011, are disposed in the installation cavity 1020, the catching protrusions 1013 are directly disposed on the ends of the first transverse plates 1012, which are far away from the first riser 1011. Of course, in other embodiments, a connecting plate may be disposed between the two first horizontal plates 1012, and the catching protrusion 1013 may be disposed on the connecting plate. In addition, the positions of the catching protrusion 1013 and the catching hole 10524 may be interchanged, that is, the catching protrusion 1013 is disposed on the pushing piece 1052 and the catching hole 10524 is disposed on the first connecting member 101.

Optionally, the number of the clamping protrusions 1013 may be multiple according to requirements, correspondingly, the number of the clamping holes 10524 may also be multiple according to requirements, and the plurality of clamping protrusions 1013 and the plurality of clamping holes 10524 are clamped in a one-to-one correspondence manner, so as to improve the limiting and fixing effects of the pushing piece 1052 and the first connecting member 101.

As shown in fig. 8, in the present embodiment, the pushing piece 1052 includes a clip portion 10521, a connecting portion 10522 and a pushing portion 10523 connected in sequence, and in the present embodiment, the clip portion 10521, the connecting portion 10522 and the pushing portion 10523 are connected in a U shape. The engaging hole 10524 is disposed on the engaging portion 10521, and may be disposed at a connecting portion between the engaging portion 10521 and the connecting portion 10522. The connecting portion 10522 is connected to the free end of the constant force spring 1051 by a screw or welding. The pushing part 10523 is disposed outside the installation cavity 1020, and a user can easily push and pull the pushing piece 1052 by holding the pushing part 10523, so that the flexible movement of the whole detachable torsion mechanism 105 is realized. Of course, in other embodiments, the clamping portion 10521, the connecting portion 10522 and the pushing portion 10523 may be connected in a zigzag shape or other shapes, and are not limited to the U-shape in this embodiment.

Further, in order to realize the quick positioning of the detachable torsion mechanism 105 and the fixed torsion mechanism, the torsion spring device 100 further includes a first positioning element and a second positioning element, the first positioning element is disposed on the mounting seat, the second positioning element is disposed in the mounting cavity 1020, and the first positioning element and the second positioning element are matched to realize the positioning of the detachable torsion mechanism 105 in the mounting cavity 1020.

Optionally, the first positioning element is a magnetic attraction element 1057, in this embodiment, the first positioning element is an attraction screw screwed on the mounting seat, and the attraction screw is a screw made of a material capable of being magnetically attracted. The second positioning element is a magnet 106, in this embodiment, the second positioning element is a permanent magnet, but in other embodiments, the second positioning element may also be an electromagnet. Further alternatively, the positions of the magnetic element 1057 and the magnet element 106 can be interchanged, i.e., the magnetic element 1057 is disposed on the mounting base and the magnet element 106 is disposed in the mounting cavity 1020. Of course, the first positioning element and the second positioning element may be a combination of a positioning hole and a positioning post, in addition to the combination of the magnetic attraction piece 1057 and the magnet piece 106.

The assembly process of the torsion spring device 100 is as follows; first, the fixed torsion mechanism and the detachable torsion mechanism 105 are assembled, respectively; then, the detachable torsion mechanism 105 is moved in a direction close to the fixed torsion mechanism, and after the detachable torsion mechanism 105 enters the installation cavity 1020, the detachable torsion mechanism 105 and the fixed torsion mechanism are automatically locked and positioned under the adsorption action of the magnetic attraction piece 1057 and the magnet piece 106; then, a force is applied to rotate the first connecting piece 101, so that the first connecting piece 101 and the related part connected with the first connecting piece 101 rotate to 0 ° or a forward tilting position, and the pushing sheet 1052 in the installation cavity 1020 is pushed to the bottom; finally, the force application to the first connecting member 101 and the pushing piece 1052 is stopped, and under the action of the fixed torsion spring 103, the magnetic attraction piece 1057 and the magnet piece 106, the first connecting member 101 and the pushing piece 1052 automatically return to achieve the automatic engagement of the clamping protrusion 1013 and the clamping hole 10524, so that the installation is completed. The disassembly process and the assembly process of the torsion spring device 100 are the reverse, and will not be described herein.

The present embodiment further provides a stand for a display, as shown in fig. 11, the stand for a display includes a stand 300 and the torsion spring device 100, the first connecting member 101 is used for connecting the screen 200, and the stand 300 is connected to the second connecting member 102.

By using the torsion spring device 100, the display stand provided by the embodiment can adjust the torsion provided by the torsion spring device 100 without disassembling and assembling the stand 300 and the fixed torsion mechanism. When the screen 200 with different weight needs to be replaced, the detachable torsion mechanism 105 only needs to be installed in the installation cavity 1020 of the fixed torsion mechanism or removed from the installation cavity 1020 of the fixed torsion mechanism, so that the torsion spring device 100 provides torsion force balanced with the weight of the new screen 200, and finally the purpose that one bracket 300 is matched with the screens 200 with various weights is achieved. The whole process of the display support is simple to operate and high in operation efficiency, and the probability of mechanical damage to the display support caused by disassembling and assembling of all parts is reduced.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A torsion spring device, comprising:

the torsion fixing mechanism comprises a first connecting piece (101), a second connecting piece (102), a fixing torsion spring (103) and a rotating shaft (104), wherein the first connecting piece (101) and the second connecting piece (102) are in rotating connection through the rotating shaft (104), the fixing torsion spring (103) is sleeved on the rotating shaft (104), the fixing torsion spring (103) comprises a first torsion arm and a second torsion arm, the first torsion arm is fixed with the first connecting piece (101) in a limiting mode, the second torsion arm is fixed with the second connecting piece (102) in a limiting mode, and an installation cavity (1020) is formed in the second connecting piece (102);

the detachable torsion mechanism (105) is detachably connected in the installation cavity (1020) and has a first state of being connected in the installation cavity (1020) and a second state of being arranged outside the installation cavity (1020), and the detachable torsion mechanism (105) is configured to be in a limiting and fixing state with the first connecting piece (101) when being in the first state, and provides a preset torsion force for the rotation of the first connecting piece (101) and the second connecting piece (102).

2. The torsion spring device according to claim 1,

the detachable torsion mechanism (105) comprises a mounting seat, a fixed force spring (1051) and a pushing piece (1052), wherein an accommodating cavity (10531) and an avoiding opening (10532) are arranged on the mounting seat, the fixed force spring (1051) is arranged in the accommodating cavity (10531), the free end of the fixed force spring (1051) is arranged outside the mounting seat through the avoiding opening (10532), the pushing piece (1052) is connected to the free end of the fixed force spring (1051), the pushing piece (1052) is configured to enable the detachable torsion mechanism (105) to enter and exit the mounting cavity (1020) when pushed and pulled, and the pushing piece (1052) is fixed with the first connecting piece (101) in a limiting manner.

3. The torsion spring device according to claim 2,

one of the partial structure of the first connecting piece (101) extending into the installation cavity (1020) and the pushing piece (1052) is provided with a clamping protrusion (1013), the other one is provided with a clamping hole (10524), and the clamping protrusion (1013) can be clamped into the clamping hole (10524).

4. The torsion spring device according to claim 3,

the pushing piece (1052) comprises a clamping portion (10521), a connecting portion (10522) and a pushing portion (10523) which are connected in sequence, the clamping protrusion (1013) or the clamping hole (10524) is arranged on the clamping portion (10521), the connecting portion (10522) is connected with the free end of the constant force spring (1051), and the pushing portion (10523) is arranged outside the installation cavity (1020).

5. The torsion spring device according to claim 2,

the accommodating cavity (10531) is internally provided with an installation column (1056) in a protruding manner, and the constant force spring (1051) is sleeved on the installation column (1056).

6. The torsion spring device according to claim 5,

the mount pad includes pedestal (1053) and lid (1054), hold chamber (10531) and dodge mouth (10532) and all set up on pedestal (1053), lid (1054) spiral-lock is in hold the opening part in chamber (10531).

7. The torsion spring device according to claim 6,

a first connecting hole (10541) penetrates through the cover body (1054), and a second connecting hole (10561) is formed in the mounting column (1056) along the axial direction;

the mount further includes a locking screw (1055), the locking screw (1055) being coupled within the second coupling hole (10561) through the first coupling hole (10541).

8. The torsion spring device according to claim 2,

the torsion spring device further comprises a first positioning piece and a second positioning piece, the first positioning piece is arranged on the installation seat, the second positioning piece is arranged in the installation cavity (1020), and the first positioning piece and the second positioning piece are matched to realize the positioning of the detachable torsion mechanism (105) in the installation cavity (1020).

9. The torsion spring device according to claim 8,

one of the first positioning piece and the second positioning piece is a magnet piece (106), and the other one is a magnetic piece (1057).

10. A display stand, characterized by comprising a stand (300) and a torsion spring arrangement according to any of claims 1-9, the first connection (101) being for connection to a screen (200), the stand (300) being connected to the second connection (102).

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