Self-rotating sign mechanism and sign-bearing device

Abstract

The application discloses an automatic rotating sign mechanism and a sign equipment, and belongs to the technical field of sign equipment. The automatic rotating sign mechanism comprises a rotating shaft, a mass block and an elastic reset component. The rotating shaft is rotationally connected to a first casing. One end of the mass block is connected to the rotating shaft, and the other end of the mass block is a free end. The rotating shaft and / or one end of the mass block are used for connecting a sign body. One end of the elastic reset component is connected to the rotating shaft and can be wound on the rotating shaft. The other end of the elastic reset component is used for connecting the first casing. The automatic rotating sign mechanism and the sign equipment can make the sign body seen by a user in an upright state, so as to guarantee the identification function and the propaganda function of the sign body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of marked product, and particularly relates to an automatic rotating marking mechanism and a marked device. BACKGROUND

[0002] A shell of a notebook computer or the like is provided with a mark, which can be a logo or other structure. In the prior art, the mark is usually fixed on the shell and is usually fixed on the shell provided with a display screen. For an asymmetric mark, when the notebook computer is in a closed state, the mark viewed by a user is normal. However, when the notebook computer is in an open state, an included angle between the shell provided with the display screen and the shell provided with a keyboard is greater than or equal to 90 degrees, at this time, the mark is in an inverted state, the mark in the inverted state cannot play a marking role or is difficult to be recognized by a person opposite to the notebook computer, and the marking function of the mark is lost. Therefore, the mark on the notebook computer in the prior art has room for improvement. SUMMARY

[0003] The present application aims to provide an automatic rotating marking mechanism and a marked device, which can make the mark viewed by a user in a normal state, so as to ensure the marking function and the propaganda function of the mark.

[0004] As conceived above, the technical solution adopted by the present application is as follows:

[0005] The automatic rotating marking mechanism is installed on a first shell of a marked device, the marked device further has a second shell, the first shell is rotationally connected with the second shell, and the automatic rotating marking mechanism comprises:

[0006] A rotating shaft, which is rotationally connected with the first shell;

[0007] A mass block, one end of which is connected with the rotating shaft, the other end of the mass block is a free end, and the rotating shaft and / or the one end of the mass block are used for connecting a mark body;

[0008] An elastic reset assembly, one end of which is connected with the rotating shaft and can be wound on the rotating shaft, and the other end of the elastic reset assembly is used for connecting the first shell;

[0009] When the first shell rotates away from the second shell to open the sign device, the mass drives the rotating shaft and the sign body to rotate, so that the top of the sign body faces away from the edge of the second shell towards the back of the first shell, and the elastic return assembly is elastically deformed; when the first shell is buckled on the second shell, the elastic return assembly pulls the rotating shaft to rotate, so that the rotating shaft drives the mass and the sign body to rotate, so that the top of the sign body faces towards the edge of the second shell towards the first shell.

[0010] Optionally, the elastic return assembly comprises a connecting elastic member and a connecting member, one end of the elastic member away from the connecting member is connected to the first shell, and one end of the connecting member away from the elastic member is connected to the rotating shaft and can be wound on the rotating shaft.

[0011] Optionally, the material of the connecting member is natural fiber, synthetic fiber, metal or composite material.

[0012] Optionally, the elastic member is a spring, and the inner diameter and the outer diameter of the spring are constant in the length direction of the spring.

[0013] Optionally, one end of the mass has a through hole, the rotating shaft passes through the through hole, and the rotating shaft and the through hole are in interference fit.

[0014] Optionally, the mass and the rotating shaft are welded, clamped, bonded and / or screwed.

[0015] Optionally, the mass comprises a connecting section and a V-shaped section, one end of the connecting section is connected to the rotating shaft, the other end of the connecting section is connected to the center of the V-shaped groove of the V-shaped section, and the V-shaped section is an axisymmetric structure.

[0016] Optionally, the mass is made of tungsten-nickel-iron alloy, or the density of the mass is 8.1 g / cc, or the hardness of the mass is greater than or equal to 320 Hv.

[0017] The sign device comprises a first shell, a second shell, a sign body and an automatic rotating sign mechanism as described above.

[0018] The first shell and the second shell are rotationally connected through a rotating shaft, the sign body is located outside the first shell, the mass and the elastic return assembly are located inside the first shell, the rotating shaft is rotationally connected to the first shell, and the rotating shaft and / or the mass are connected to the sign body.

[0019] Optionally, it also includes a bearing mounted on the first housing, the rotating shaft being connected to the bearing and rotatably connected to the first housing via the bearing.

[0020] The beneficial effects of this invention are:

[0021] The automatic rotating sign mechanism and sign-bearing device provided by this invention have a rotating shaft rotatably connected to a first housing. A mass block and a sign body are respectively connected to the rotating shaft. One end of an elastic reset component is connected to the rotating shaft, and the other end is connected to the first housing. This allows the sign body to be adjusted to an upright position by the gravity of the mass block when the sign-bearing device is in the open state. It also allows the sign body to be adjusted to an upright position by the elastic potential energy of the elastic reset component when the sign-bearing device is in the closed state. Thus, the sign body can always be in an upright position regardless of the state of the sign-bearing device, thereby ensuring the identification and publicity functions of the sign body.

[0022] Furthermore, the automatic rotating sign mechanism provided by this invention is designed primarily using its own mechanical structure characteristics. It achieves the rotation function of the sign body through energy conversion between the mass block and the elastic reset component. It does not require external power, has low cost and strong flexibility, and has a wide range of applications. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the automatic rotating sign mechanism provided in an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the automatic rotating sign mechanism provided in an embodiment of the present invention. Figure 1 ;

[0025] Figure 3 This is an exploded view of the automatic rotating sign mechanism provided in an embodiment of the present invention. Figure 2 ;

[0026] Figure 4 This is a schematic diagram of the structure of the marked device in the open state according to an embodiment of the present invention;

[0027] Figure 5 This is an exploded view of the marked device provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the marked device in the fastened state according to an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Rotating shaft; 2. Mass block; 21. Through hole; 22. Connecting section; 23. V-shaped section; 3. Elastic reset assembly; 31. Elastic element; 32. Connecting element; 10. First housing; 20. Second housing; 30. Marker body. Detailed Implementation

[0031] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0036] This embodiment provides an automatic rotating sign mechanism, installed on a first housing 10 of a sign-bearing device. The sign-bearing device also has a second housing 20, and the first housing 10 and the second housing 20 are rotatably connected. The automatic rotating sign mechanism provided in this embodiment can drive the marker body to move, so as to cooperate with the sign-bearing device in different states, ensuring that the sign body 30 seen by the user is always in an upright position regardless of the state of the sign-bearing device, thereby guaranteeing the advertising function of the sign body 30. For example, the sign-bearing device in this embodiment is a laptop computer; however, it is understood that the sign-bearing device can also be other electronic devices, and this embodiment does not limit it to such devices.

[0037] like Figure 1 and Figure 2 As shown, the automatic rotating sign mechanism includes a rotating shaft 1, a mass block 2, and an elastic reset component 3.

[0038] In this embodiment, the rotating shaft 1 is rotatably connected to the first housing 10. The first housing 10 is provided with a rotating hole or a rotating groove. One end of the rotating shaft 1 is rotatably disposed in the rotating hole or rotating groove, and the translation of one end of the rotating shaft 1 is restricted by the first housing 10, so that the rotating shaft 1 can only rotate relative to the first housing 10.

[0039] The aforementioned mass block 2 can be understood as a block with a certain mass, the specific mass of which can be set according to actual conditions. One end of the mass block 2 along its length is connected to the rotation shaft 1. In this embodiment, the mass block 2 and the rotation shaft 1 are fixedly connected, allowing the rotation shaft 1 and the mass block 2 to move simultaneously. The other end of the mass block 2 along its length is a free end, meaning that the other end of the mass block 2 is not restricted by other structures. One end of the rotation shaft 1 and / or the mass block 2 is used to connect to the marker body 30, thereby enabling the marker body 30 to rotate with the rotation shaft 1 or one end of the mass block 2. In this embodiment, the marker body 30 is connected to the rotation shaft 1.

[0040] One end of the aforementioned elastic reset component 3 is connected to the rotating shaft 1 and can be wound around the rotating shaft 1. In this embodiment, one end of the elastic reset component 3 is fixedly connected to the rotating shaft 1, and the elastic reset component 3 can be wound around the rotating shaft 1 under the action of external force. The elastic reset component 3 can undergo elastic deformation, and the other end of the elastic reset component 3 is used to connect to the first housing 10. The other end of the elastic reset component 3 is fixed to the first housing 10, and one end of the elastic reset component 3 can be wound around the rotating shaft 1, so that the elastic reset component 3 can provide the power for the rotation of the rotating shaft 1.

[0041] The working principle of the automatic rotating sign mechanism provided in this embodiment is as follows: the sign-bearing device has, for example, the automatic rotating sign mechanism. Figure 4 The open state shown and as Figure 6The shown snap-fit ​​state is as follows. When the first housing 10 rotates away from the second housing 20 to open the marking device, the mass block 2 drives the rotating shaft 1 and the marking body 30 to rotate, so that the top of the marking body 30 faces the edge of the first housing 10 away from the second housing 20. At the same time, the elastic reset component 3 undergoes elastic deformation and stores elastic potential energy. When the first housing 10 snaps onto the second housing 20, the elastic reset component 3 pulls the rotating shaft 1 to rotate under the action of elastic potential energy. The rotation of the rotating shaft 1 drives the mass block 2 and the marking body 30 to rotate, so that the top of the marking body 30 faces the edge of the first housing 10 towards the edge of the second housing 20. It should be noted that during the process of the first housing 10 snapping onto the second housing 20, the rotation angle of the rotating shaft 1 is 180° or an integer multiple of 180°, so that the marking body 30 can be smoothly placed in the upright state. It should also be noted that during the process of fastening the marked device, the mass block 2 contacts the first housing 10 or other components and is supported on the first housing 10 or other components, so that the elastic reset component 3 only needs to provide a force greater than the frictional force between the mass block 2 and the first housing 10 or other components to pull the mass block 2 to move.

[0042] The automatic rotating sign mechanism provided in this embodiment has a rotating shaft 1 rotatably connected to the first housing 10. The mass block 2 and the sign body 30 are respectively connected to the rotating shaft 1. One end of the elastic reset component 3 is connected to the rotating shaft 1, and the other end is connected to the first housing 10. When the sign-bearing device is in the open state, the gravity of the mass block 2 can adjust the sign body 30 to the upright state. When the sign-bearing device is in the closed state, the elastic potential energy of the elastic reset component 3 can adjust the sign body 30 to the upright state. Thus, no matter what state the sign-bearing device is in, the sign body 30 can always be in the upright state, so as to ensure the marking and publicity functions of the sign body 30.

[0043] Furthermore, the automatic rotating sign mechanism provided in this embodiment is designed using its own mechanical structure characteristics. It realizes the rotation function of the sign body 30 through energy conversion between the mass block 2 and the elastic reset component 3. It does not require external power, has low cost and strong flexibility, and has a wide range of applications.

[0044] The elastic reset component 3 can have various structures. This embodiment provides an elastic reset component 3, such as... Figure 2 and Figure 3As shown, the elastic reset assembly 3 includes an elastic element 31 and a connecting element 32 connected together. The end of the elastic element 31 away from the connecting element 32 can be connected to the first housing 10, and the end of the connecting element 32 away from the elastic element 31 is connected to the rotating shaft 1 and can be wound around the rotating shaft 1. By providing the connecting element 32, the elastic reset assembly 3 has both the ability to elastically deform and the ability to be wound around the rotating shaft 1, thereby achieving the corresponding function. It should be noted that during the opening of the marking device, the elastic element 31 can be stretched and store energy, and the end of the connecting element 32 away from the elastic element 31 is wound around the rotating shaft 1. During the closing of the marking device, the energy in the elastic element 31 is released, pulling the connecting element 32, thereby driving the rotating shaft 1, the mass block 2, and the marking body 30 to rotate via the connecting element 32.

[0045] This embodiment also provides another elastic reset component 3, which includes an elastic element 31 and a connecting element 32. In this case, the connecting element 32 has a structure similar to a torsion spring. Its state of being wound on the rotating shaft 1 is in a natural state. When the mass block 2 pulls the rotating shaft 1 to rotate, the connecting element 32 is in an extended state and stores elastic deformation force. As a result, after the force applied by the mass block 2 to the rotating shaft 1 disappears, the connecting element 32 can return to its natural state under the action of its own elastic force, so that it can be successfully wound on the rotating shaft 1.

[0046] Both of the above-mentioned elastic reset components 3 can achieve the smooth alignment of the marker body 30.

[0047] In some alternative embodiments, the first housing 10 may be provided with a guide groove, and the elastic element 31 may be disposed in the guide groove. The guide groove can guide the movement path of the elastic element 31. Alternatively, a guide post may be connected to the first housing 10, and at least part of the elastic element 31 may be sleeved on the guide post, thereby achieving the guidance of the elastic element 31.

[0048] Optionally, when the marked device is opened, the connector 32 is wound around the rotating shaft 1, and the material of the connector 32 is natural fiber, synthetic fiber, metal, composite material, etc., so as to be able to be wound smoothly around the rotating shaft 1. In this embodiment, the connector 32 is made of nylon or a similar type of material, and the elongation of the connector 32 is minimized to maximize the transmission of stroke and force. The connector 32 needs to connect the elastic element 31 to the rotating shaft 1. When the mass block 2 rotates, the connector 32 is wound around the rotating shaft 1 and pulls the elastic element 31 downward, causing the elastic element 31 to elongate. When the elastic element 31 is made of metal, it is inconvenient to connect it to the rotating shaft 1. Adding the connector 32 can cleverly solve this problem, making the connection position more convenient, the design more flexible, and the force transmission smoother.

[0049] For example, such as Figure 2 orFigure 3 As shown, the elastic element 31 is a spring. The inner and outer diameters of the spring remain constant along its length to ensure relatively uniform elastic potential energy. Optionally, the spring is preferably made of stainless steel; more preferably, it is made of SUS301-EH or a similar grade. The spring should possess characteristics such as high strength, good elasticity, and long service life. The spring itself is helical. When the marking device is in the open state, the mass block 2 will automatically rotate the rotating shaft 1 under the action of gravity, converting the potential energy of gravity into the elastic potential energy of the spring, thus placing the marker 30 in an upright position. When the marking device is fastened, the spring will pull the mass block 2 back to its original marked position under the action of elastic force, thereby placing the marker 30 in another upright position. It is understood that the elastic element 31 can also be other elastically deformable structures; this embodiment does not limit this.

[0050] In some alternative implementations, please refer to Figure 3 or Figure 5 The mass block 2 has a through hole 21 at one end near the rotating shaft 1. The rotating shaft 1 is disposed through the through hole 21 and the rotating shaft 1 is interference-fitted with the through hole 21.

[0051] Alternatively, the rotating shaft 1 can be made of stainless steel, which has high hardness and strong load-bearing capacity. The mass block 2 can also be made of metal, and the mass block 2 is welded, snap-fitted, bonded, and / or screwed to the rotating shaft 1 to further increase the bonding force between the rotating shaft 1 and the mass block 2 and reduce the probability of them separating.

[0052] In this embodiment, the material of mass block 2 needs to have high density. Preferably, the material of mass block 2 is tungsten-nickel-iron alloy. Optionally, the density of mass block 2 is 8.1 g / cc (weight of one cubic centimeter of material). Further optionally, the hardness of mass block 2 is greater than or equal to 320 Hv (Vickers hardness). By limiting the above parameters, mass block 2 can achieve the conversion between the gravitational potential energy of mass block 2 and the elastic potential energy of elastic reset component 3.

[0053] Optionally, such as Figure 3 As shown, the mass block 2 includes a connecting section 22 and a V-shaped section 23. One end of the connecting section 22 is connected to the rotating shaft 1. The V-shaped section 23 has a V-shaped groove. The other end of the connecting section 22 is connected to the center of the V-shaped groove. The center of the V-shaped groove can be understood as the tip area of ​​the V-shaped groove. The V-shaped section 23 has an axisymmetric structure, so that the weight of the V-shaped section 23 on both sides of the connecting section 22 is the same. This ensures that the force on the elastic reset component 3 is only the vertical downward gravity of the mass block 2, and can ensure that the marker body 30 is upright, reducing the possibility of the marker body 30 tilting, and making the marker body 30 more aesthetically pleasing.

[0054] This embodiment also provides a device with a marker, including a first housing 10, a second housing 20, a marker body 30, and an automatic rotating marker mechanism as described above.

[0055] The first housing 10 and the second housing 20 are rotatably connected via a pivot, allowing the first housing 10 to open or close relative to the second housing 20. In this embodiment, the first housing 10 can be the housing containing the screen, and the second housing 20 can be the housing containing the keyboard. The marker 30 is located outside the first housing 10, specifically on the surface of the first housing 10 facing away from the second housing 20. The mass block 2 and the elastic reset assembly 3 are both located inside the first housing 10. For example, the first housing 10 may have an accommodating space, within which the mass block 2 and the elastic reset assembly 3 are located. It should be noted that the length of the accommodating space needs to be greater than twice the length of the mass block 2, and the width greater than the length of the mass block 2, so that the mass block 2 can rotate smoothly within the accommodating space. The rotating shaft 1 is rotatably connected to the first housing 10, and the rotating shaft 1 and / or the mass block 2 are connected to the marker 30. In some embodiments, one end of the rotating shaft 1 extends out of the first housing 10, and the marker 30 is connected to one end of the rotating shaft 1.

[0056] The marking device provided in this embodiment has a rotating shaft 1 rotatably connected to a first housing 10. A mass block 2 and a marking body 30 are respectively connected to the rotating shaft 1. One end of an elastic reset component 3 is connected to the rotating shaft 1, and the other end is connected to the first housing 10. When the marking device is in the open state, the gravity of the mass block 2 can adjust the marking body 30 to an upright state. When the marking device is in the closed state, the elastic potential energy of the elastic reset component 3 can adjust the marking body 30 to an upright state. Thus, no matter what state the marking device is in, the marking body 30 can always be in an upright state, so as to ensure the marking and advertising functions of the marking body 30.

[0057] Optionally, the marking device also includes a bearing mounted on the first housing 10. The rotating shaft 1 is connected to the bearing and is rotatably connected to the first housing 10 through the bearing. By setting the bearing, the friction between the rotating shaft 1 and the first housing 10 can be reduced, so that the rotating shaft 1 can rotate smoothly. It also means that the mass of the mass block 2 does not need to be too large, which is beneficial to the lightweighting of the marking device.

[0058] The marker 30 in this embodiment can be made of metal, plastic, etc., and can be luminous or non-luminous, depending on actual needs.

[0059] This embodiment enables the marker 30 to automatically cooperate and maintain a preset upright position (i.e., upright state) when the laptop is in different states of being open or closed, and also ensures the upright stability of the marker 30.

[0060] Furthermore, the marking device provided in this embodiment does not require external electrical signal input. It achieves the automatic rotation of the marking body 30 through its own mechanical structure design and energy conversion, thus realizing "carbon-free" green environmental protection.

[0061] In this embodiment, when the laptop is open, the marker 30 is automatically aligned due to the gravity of the mass block 2; when the laptop is closed, the marker 30 automatically returns to its original position under the action of the elastic reset component 3. The design of the mass block 2 utilizes its own weight to position and align the marker 30 automatically, without the need for external electrical energy, achieving carbon-free operation and perfectly embodying the concept of green environmental protection. Simultaneously, while the marker 30 is aligning itself, the mass block 2 drives the rotating shaft 1 to rotate, causing the connector 32 to wrap around the rotating shaft 1. At the same time, the connector 32 pulls down the spring, converting the gravitational potential energy of the mass block 2 into the elastic potential energy of the spring. When the laptop is closed, the energy in the spring is automatically released, and the marker 30 is automatically aligned via the connector 32 and the rotating shaft 1, achieving the energy conversion effect.

[0062] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An automatic rotating sign mechanism, installed on a first housing (10) of a sign-equipped device, the sign-equipped device further having a second housing (20), the first housing (10) being rotationally connected to the second housing (20), characterized in that, The automatic rotating sign mechanism comprises: a rotating shaft (1) rotatably connected to the first casing (10); a mass block (2) having one end connected to the rotating shaft (1) and the other end being a free end, the rotating shaft (1) and / or one end of the mass block (2) being used for connecting a sign body (30); the mass block (2) comprises a connecting section (22) and a V-shaped section (23), one end of the connecting section (22) being connected to the rotating shaft (1), the other end of the connecting section (22) being connected to the center of a V-shaped groove of the V-shaped section (23), and the V-shaped section (23) being an axisymmetric structure; an elastic reset component (3) having one end connected to the rotating shaft (1) and being capable of being wound on the rotating shaft (1), and the other end being used for connecting the first casing (10); when the first casing (10) is rotated away from the second casing (20) to open the sign device, the mass block (2) drives the rotating shaft (1) and the sign body (30) to rotate, so that the top of the sign body (30) faces away from the edge of the second casing (20) toward the first casing (10), the elastic reset component (3) is elastically deformed, and the force acting on the elastic reset component (3) is only the vertical downward gravity of the mass block (2); when the first casing (10) is buckled on the second casing (20), the elastic reset component (3) drives the rotating shaft (1) to rotate, so that the rotating shaft (1) drives the mass block (2) and the sign body (30) to rotate, so that the top of the sign body (30) faces toward the edge of the second casing (20) toward the first casing (10).

2. The automatic sign rotating mechanism according to claim 1, wherein The elastic reset component (3) comprises a connecting elastic member (31) and a connecting member (32), one end of the elastic member (31) away from the connecting member (32) being capable of being connected to the first casing (10), and one end of the connecting member (32) away from the elastic member (31) being connected to the rotating shaft (1) and being capable of being wound on the rotating shaft (1).

3. The automatic sign rotating mechanism of claim 2, wherein, The material of the connecting member (32) is natural fiber, synthetic fiber, metal or composite material.

4. The automatic sign rotating mechanism of claim 2, wherein, The elastic member (31) is a spring, and the inner diameter and the outer diameter of the spring are constant in the length direction of the spring.

5. The automatic sign rotating mechanism according to any one of claims 1 to 4, characterized in that, One end of the mass block (2) has a through hole (21), the rotating shaft (1) passes through the through hole (21), and the rotating shaft (1) is in interference fit with the through hole (21).

6. The automatic sign rotating mechanism of claim 5, wherein, The mass block (2) and the rotating shaft (1) are welded, clamped, bonded and / or screwed.

7. The self-rotating sign mechanism according to any one of claims 1-4, wherein, The mass block (2) is made of tungsten-nickel-iron alloy, or the density of the mass block (2) is 8.1 g / cc, or the hardness of the mass block (2) is greater than or equal to 320 Hv.

8. A sign-bearing device characterized by, The automatic rotating sign mechanism comprises a first casing (10), a second casing (20), a sign body (30) and the automatic rotating sign mechanism of any one of claims 1-7. The first casing (10) and the second casing (20) are connected by a rotating shaft, the sign body (30) is located outside the first casing (10), the mass block (2) and the elastic reset component (3) are both located inside the first casing (10), the rotating shaft (1) is connected to the first casing (10), and the rotating shaft (1) and / or the mass block (2) are connected to the sign body (30).

9. The sign-bearing device of claim 8, wherein, A bearing is further installed on the first casing (10), the rotating shaft (1) is connected to the bearing, and the rotating shaft (1) is connected to the first casing (10) by the bearing.

Images