Hinge unfolding device driven by using clockwork spring as power source

Abstract

The invention discloses a hinge unfolding device driven by a clockwork spring as a power source, and relates to the technical field of solar wing hinge unfolding, the hinge unfolding device comprises a base module, and a driving module, a non-return module, a clutch module and a torque increasing module which are arranged on the base module, and the driving module comprises the clockwork spring and a power main shaft; the tightly wound clockwork spring drives the power main shaft to rotate; the non-return module ensures that the clockwork spring does not directly start to work after force application is finished by utilizing a ratchet mechanism; the clutch module utilizes a clutch mechanism to realize that the output end does not rotate along with the power spring in the force applying process of the power spring; the torque increasing module is a planetary speed reducer, and output stability is guaranteed while speed reduction and torque increasing are achieved; through cooperation of the driving module, the non-return module, the clutch module and the torque increasing module, torque can be continuously and rapidly output, the problem that a driving hinge high-speed unfolding device is lacked at present is solved, and the device is compact in structure, small in occupied space and convenient to install on a solar wing hinge.

Description

Technical Field

[0001] The present invention relates to the technical field of solar wing hinge deployment, and in particular to a hinge deployment device driven by a clockwork spring as a power source. Background Art

[0002] With the continuous development and progress of aerospace technology, spacecraft plays a vital role in space exploration and various missions. The normal operation of spacecraft is inseparable from a stable and reliable power supply, and solar energy, as a clean and sustainable energy source, has been widely used in spacecraft. In order to meet the growing power demand of spacecraft, the area of ​​spacecraft solar panels continues to increase. Considering the strict requirements on the volume of spacecraft during launch, the solar wing adopts a foldable solar cell array design. This design can fold the solar wing during the launch phase of the spacecraft to reduce the volume and facilitate launch; when the spacecraft successfully enters orbit, the solar wing is unlocked and quickly unfolded under the drive of a specific power source, so as to receive sunlight to the greatest extent and provide sufficient power for the spacecraft. Among them, the clockwork spring, as a mechanical element with energy storage characteristics, is widely used in the deployment drive system of the solar wing. The clockwork spring can store energy before the spacecraft is launched, release energy after entering orbit, drive the hinge of the solar wing to unfold, and realize the rapid deployment of solar panels.

[0003] At present, although the spring plays a certain role in the deployment of solar wings, there are still some problems and challenges. First, in terms of ensuring that the spring driving torque is greater than the resistance torque of the solar wing hinge, the existing devices often have difficulty in accurately controlling the torque size. If the spring driving torque is insufficient, the solar wing may not be able to be deployed quickly and stably, affecting the power supply of the spacecraft; if the torque is too large, it may damage the solar wing structure and reduce its service life. Secondly, the stability of the torque output of the existing spring spring drive device needs to be improved. Unstable torque output may cause jitter, jamming and other phenomena during the deployment of the solar wing, affecting the reliability and stability of the deployment. In addition, the existing solar wing deployment power source is often more complicated in design, which increases the weight and cost of the spacecraft and also reduces the reliability of the system. Therefore, it is of great practical significance to invent a device that uses a spring spring as a power source to drive the hinge to unfold. This device needs to be able to accurately control the spring driving torque so that it is greater than the resistance torque of the solar wing hinge and does not cause excessive damage to the solar wing structure. At the same time, the device should also ensure that the torque output is as stable as possible to ensure the stability and rapidity of the deployment of the solar wing. By optimizing the design, we can reduce the complexity and weight of the device, improve the overall performance and reliability of the spacecraft, and provide strong technical support for the development of the aerospace industry. Summary of the invention

[0004] The present invention provides a hinge expansion device driven by a clockwork spring as a power source, which makes up for the current technical problem of lack of a hinge high-speed expansion device.

[0005] In order to solve the above technical problems, the present invention provides a hinge deployment device driven by a clockwork spring as a power source, comprising a base module and a driving module, a non-return module, a clutch module and a torque increasing module arranged on the base module; the driving module comprises a clockwork spring and a power spindle, and the power spindle is driven to rotate by the wound clockwork spring; the non-return module utilizes a ratchet mechanism to ensure that the clockwork spring will not start working directly after the force is applied; the clutch module utilizes a clutch mechanism to ensure that the output end will not rotate during the process of the clockwork spring applying force; the torque increasing module is a planetary reducer, which ensures the stability of the output while achieving speed reduction and torque increase.

[0006] In some embodiments, the base module includes an outer shell, a bottom shell and a lower end cover, the lower end cover is arranged on the lower side of the bottom shell, and the outer shell is arranged on the upper side of the bottom shell.

[0007] In some embodiments, the driving module also includes a spring pressure plate, a spring top plate and a pawl rotating shaft. The power main shaft is installed in a through hole reserved at the lower part of the base module through a bearing, and the pawl rotating shaft is installed in a blind hole between the upper surface of the bottom shell and the inside of the outer shell. The power input end of the clockwork spring is connected to the power main shaft, and the power output end of the clockwork spring is connected to the pawl rotating shaft. The spring pressure plate and the spring top plate are sleeved on the power main shaft through the center circular hole, and the spring pressure plate and the spring top plate are used to limit the upper and lower positions of the clockwork spring.

[0008] In some embodiments, the anti-return module includes a spring fixed shaft, a non-return pawl, a pawl sleeve, a ratchet gear, a ratchet sleeve, a pawl reset spring and a transmission connecting key. The spring fixed shaft is arranged in an irregular hole on the upper surface of the bottom shell, the non-return pawl is installed above the shoulder of the pawl rotating shaft, and the pawl reset spring is arranged between the top of the spring fixed shaft and the lower part of the non-return pawl.

[0009] In some embodiments, a pawl sleeve disposed between the non-return pawl and the pawl rotating shaft limits the non-return pawl from moving up and down, and the ratchet gear is installed on the shoulder of the power spindle through a ratchet sleeve and a transmission connecting key.

[0010] In some embodiments, the clutch module includes a clutch spring, a clutch linkage shaft, a torque-increasing output shaft and a clutch spring. A square hole is provided at the bottom of the clutch linkage shaft to cooperate with the power main shaft, and is used to connect with the power main shaft to transmit torque. The power main shaft and the clutch linkage shaft are movable in the axial direction. The clutch spring is arranged between the clutch linkage shaft and the power main shaft. Clutch meshing teeth that mesh with each other are provided between the clutch linkage shaft and the torque-increasing output shaft. The other end of the torque-increasing output shaft is used to be connected to the torque-increasing module.

[0011] In some embodiments, a first slot is formed at the bottom of the power main shaft, and the first slot is used to limit the power input end of the clockwork spring. The power output end of the clockwork spring is connected to one end of the pawl rotating shaft through a clamping connection.

[0012] In some embodiments, screw holes are provided at the top of the spring fixing shaft and the bottom of the non-return pawl, and both ends of the pawl reset spring are installed at the two screw holes by using screws and adjusting the height through gaskets.

[0013] In some embodiments, the planetary reducer of the torque increasing module is mounted on the housing, the input end of the planetary reducer is connected to the torque increasing output shaft through friction, and the output end of the planetary reducer is the execution end.

[0014] Compared with the related art, the hinge deployment device provided by the present invention, which uses a clockwork spring as a power source, has the following beneficial effects:

[0015] The present invention provides a hinge deployment device driven by a clockwork spring as a power source. Through the cooperation of a driving module, a non-return module, a clutch module and a torque increasing module, a torque can be output continuously and quickly, which makes up for the current lack of a device for driving the hinge to deploy at a high speed. The structure of the present invention is compact and occupies a small space, so it is easy to be installed on the solar wing hinge. Through the synergistic effect of each module and a reasonable structural design, an efficient, stable and safe hinge deployment function is achieved, and the hinge can be driven to deploy at a high speed.

[0016] The present invention provides a hinge expansion device driven by a spring as a power source, the spring fixing shaft in the non-return module provides an installation base for the pawl reset spring, and the non-return pawl is limited by the pawl shaft sleeve to limit its up and down movement to ensure stable cooperation with the ratchet gear. The ratchet gear is installed on the shoulder of the power spindle through the ratchet shaft sleeve and the transmission connection key, and rotates with the power spindle, which can limit the rotation direction of the power spindle, so that it can be interrupted during the initial force application process, and at the same time, the force application effect can be maintained until the output torque is required.

[0017] The present invention provides a hinge deployment device driven by a spring as a power source, a clutch linkage shaft in a clutch module and a power main shaft, and a clutch spring are arranged, so that the output end does not rotate during the spring force application process, and the torque is efficiently transmitted when the device is working. The meshing teeth connection between the torque-increasing output shaft and the clutch linkage shaft ensures the effective transmission of power.

[0018] The present invention provides a hinge deployment device driven by a clockwork spring as a power source, and the planetary reducer of the torque increasing module is installed on the housing, making the entire device more compact and beautiful. The friction connection between the input end of the planetary reducer and the torque increasing output shaft is simple and reliable, and can effectively transmit torque. The output end is the execution end, which provides sufficient torque and stable output for hinge deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a partial structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the base module structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the driving module of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the anti-return module of the present invention;

[0024] Figure 6 It is a cross-sectional schematic diagram of the anti-return module of the present invention;

[0025] Figure 7 It is a schematic diagram of the clutch module structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the torque increasing module of the present invention.

[0027] Numbers in the figure: 1. Base module; 101. Shell; 102. Bottom shell; 103. Lower end cover; 2. Drive module; 201. Spring pressure plate; 202. Clockwork spring; 203. Spring top plate; 204. Power spindle; 205. Ratchet rotating shaft; 3. Check module; 301. Spring fixed shaft; 302. Check pawl; 303. Ratchet bushing; 304. Ratchet gear; 305. Ratchet bushing; 306. Ratchet reset spring; 307. Transmission connecting key; 4. Clutch module; 401. Clutch spring; 402. Clutch linkage shaft; 403. Torque increasing output shaft; 5. Torque increasing module. DETAILED DESCRIPTION

[0028] Embodiment 1

[0029] This embodiment provides a hinge deployment device driven by a spring as a power source, such as Figure 1-8 As shown, the present invention includes a base module 1 and a driving module 2, a non-return module 3, a clutch module 4 and a torque increasing module 5 arranged on the base module 1; the driving module 2 includes a spring 202 and a power main shaft 204, and the wound spring 202 drives the power main shaft 204 to rotate; the non-return module 3 uses a ratchet mechanism to ensure that the spring 202 does not start working directly after the force is applied; the clutch module 4 uses a clutch mechanism to achieve that the output end does not rotate during the force application process of the spring 202; the torque increasing module 5 is a planetary reducer, which ensures the stability of the output while achieving speed reduction and torque increase.

[0030] In this embodiment, through the synergistic effect of various modules, an efficient and stable hinge deployment function is achieved. Among them, the driving module 2 uses the elastic potential energy of the clockwork spring 202 to convert it into the rotational kinetic energy of the power spindle 204, providing a power source for the entire device. The anti-return module 3 ensures that the clockwork spring 202 will not start working immediately after the force is applied, ensuring the safety and reliability of the device. The clutch module 4 prevents the output end from rotating during the process of the clockwork spring 202 applying force, avoiding unnecessary energy loss. The torque increasing module 5 adopts a planetary reducer, which ensures the stability of the output while achieving speed reduction and torque increase, and provides sufficient torque for hinge deployment.

[0031] Embodiment 2

[0032] Based on the first embodiment, Figure 1-8 As shown, the base module 1 of this embodiment includes an outer shell 101 , a bottom shell 102 and a lower end cover 103 . The lower end cover 103 is arranged at the lower side of the bottom shell 102 , and the outer shell 101 is arranged at the upper side of the bottom shell 102 .

[0033] In this embodiment, the housing 101, the bottom housing 102 and the lower end cover 103 of the base module 1 cooperate with each other to provide a stable installation foundation for the entire device. The lower end cover 103 is arranged on the lower side of the bottom housing 102 to protect the internal components of the device; the housing 101 is arranged on the upper side of the bottom housing 102, which can not only protect the internal components, but also play a role in aesthetics and dust prevention. This structural design makes the device more compact, stable, and easy to install and maintain.

[0034] Embodiment 3

[0035] Based on the first embodiment, Figure 1-8 As shown, the driving module 2 of this embodiment also includes a spring pressure plate 201, a spring top plate 203 and a pawl rotating shaft 205. The power main shaft 204 is installed in a through hole reserved at the lower part of the base module 1 through a bearing, and the pawl rotating shaft 205 is installed in a blind hole between the upper surface of the bottom shell 102 and the inside of the outer shell 101. The power input end of the clockwork spring 202 is connected to the power main shaft 204, and the power output end of the clockwork spring 202 is connected to the pawl rotating shaft 205. The spring pressure plate 201 and the spring top plate 203 are sleeved on the power main shaft 204 through the center circular hole, and the spring pressure plate 201 and the spring top plate 203 are used to limit the upper and lower positions of the clockwork spring 202.

[0036] In this embodiment, the spring pressure plate 201 and the spring top plate 203 in the driving module 2 are sleeved on the power main shaft 204 through the central circular hole, and the spring 202 is limited up and down to ensure that the spring 202 will not be displaced during the working process, thereby ensuring the stability of the power output. The setting of the ratchet rotating shaft 205 makes the power output of the spring 202 smoother, and also provides support for the work of the anti-reverse module 3. Through this structural design, the driving module 2 can efficiently convert the elastic potential energy of the spring 202 into the rotational kinetic energy of the power main shaft 204, providing power guarantee for the normal operation of the device.

[0037] Embodiment 4

[0038] Based on the first embodiment, Figure 1-8 As shown, the non-return module 3 of this embodiment includes a spring fixed shaft 301, a non-return pawl 302, a pawl sleeve 303, a ratchet gear 304, a ratchet sleeve 305, a pawl reset spring 306 and a transmission connecting key 307, the spring fixed shaft 301 is arranged in an irregular hole on the upper surface of the bottom shell 102, the non-return pawl 302 is installed above the shoulder of the pawl rotating shaft 205, the pawl sleeve 303 arranged between the non-return pawl 302 and the pawl rotating shaft 205 limits the up and down movement of the non-return pawl 302, the ratchet gear 304 is installed on the shoulder of the power spindle 204 through the ratchet sleeve 305 and the transmission connecting key 307, and the pawl reset spring 306 is arranged between the top of the spring fixed shaft 301 and the bottom of the non-return pawl 302.

[0039] In this embodiment, the spring fixing shaft 301 in the non-return module 3 provides an installation base for the pawl reset spring 306. The non-return pawl 302 is installed above the shoulder of the pawl rotating shaft 205, and its up and down movement is limited by the pawl sleeve 303, ensuring that the non-return pawl 302 can stably cooperate with the ratchet gear 304 during operation. The ratchet gear 304 is installed on the shoulder of the power spindle 204 through the ratchet sleeve 305 and the transmission connection key 307, and rotates with the power spindle 204. When the power spindle 204 reverses, the non-return pawl 302, under the action of the pawl reset spring 306, jams the ratchet gear 304 to prevent it from reversing, thereby realizing the non-return function. This structural design ensures that the clockwork spring 202 will not start working directly after the force is applied, thereby improving the safety and reliability of the device.

[0040] Embodiment 5

[0041] Based on the first embodiment, Figure 1-8As shown, the clutch module 4 of this embodiment includes a clutch spring 401, a clutch linkage shaft 402, a torque increasing output shaft 403 and a clutch spring 401. The bottom of the clutch linkage shaft 402 is provided with a square hole to cooperate with the power main shaft 204, which is used to connect with the power main shaft 204 to transmit torque. The power main shaft 204 and the clutch linkage shaft 402 are movable in the axial direction. The clutch spring 401 is arranged between the clutch linkage shaft 402 and the power main shaft 204. Mutually meshing clutch teeth are provided between the clutch linkage shaft 402 and the torque increasing output shaft 403. The other end of the torque increasing output shaft 403 is used to be connected to the torque increasing module 5.

[0042] In this embodiment, the clutch linkage shaft 402 in the clutch module 4 cooperates with the power main shaft 204 through the square hole at the bottom to achieve the transmission of torque. The clutch spring 401 is arranged between the clutch linkage shaft 402 and the power main shaft 204. When the spring is applied with force, the clutch spring 401 is in a compressed state, so that the clutch linkage shaft 402 is separated from the power main shaft 204, and the output end does not rotate accordingly; when the device starts to work, the clutch spring 401 releases the elastic force, so that the clutch linkage shaft 402 is combined with the power main shaft 204, and the power is transmitted to the torque-increasing output shaft 403. The torque-increasing output shaft 403 and the clutch linkage shaft 402 are engaged with each other through the clutch meshing teeth, and the power is transmitted to the torque-increasing module 5. This structural design realizes that the output end does not rotate during the spring application process, and the torque can be efficiently transmitted when the device is working, thereby improving the performance and reliability of the device.

[0043] Embodiment 6

[0044] Based on the third embodiment, Figure 1-8 As shown, a first slot is provided at the bottom of the power main shaft 204 of this embodiment, and the first slot is used to limit the power input end of the clockwork spring 202, and the power output end of the clockwork spring 202 is connected to one end of the pawl rotating shaft 205 through a clamping connection.

[0045] In this embodiment, the first slot at the bottom of the power main shaft 204 limits the power input end of the clockwork spring 202, ensuring that the clockwork spring 202 will not fall off the power main shaft 204 during operation. The power output end of the clockwork spring 202 is connected to one end of the pawl rotating shaft 205 through a clamping connection. This connection method is simple and reliable, can effectively transmit power, and is also easy to install and disassemble. Through this structural design, the drive module 2 can more stably convert the elastic potential energy of the clockwork spring 202 into the rotational kinetic energy of the power main shaft 204, providing a strong guarantee for the normal operation of the device.

[0046] Embodiment 7

[0047] Based on the fourth embodiment, Figure 1-8As shown, in this embodiment, screw holes are provided at the top of the spring fixing shaft 301 and the bottom of the non-return pawl 302, and both ends of the pawl reset spring 306 are installed at the two screw holes by screws and adjusting the height through gaskets.

[0048] In this embodiment, this installation method makes the installation of the pawl reset spring 306 more secure, and can stably provide a reset force for the anti-return pawl 302. At the same time, by adjusting the number of gaskets, the installation angle of the pawl reset spring 306 is reasonably set. This structural design improves the performance and reliability of the anti-return module 3 and ensures the safe operation of the device.

[0049] Embodiment 8

[0050] Based on the first embodiment, Figure 1-8 As shown, the planetary reducer of the torque increasing module 5 of this embodiment is installed on the housing 101, the input end of the planetary reducer is connected to the torque increasing output shaft 403 through friction, and the output end of the planetary reducer is the execution end.

[0051] In this embodiment, the planetary reducer of the torque increasing module 5 is installed on the housing 101, making the whole device more compact and beautiful. The input end of the planetary reducer is connected to the torque increasing output shaft 403 by friction. This connection method is simple and reliable and can effectively transmit torque. The output end of the planetary reducer is the execution end of the whole device, which provides sufficient torque and stable output for the hinge to unfold. By adopting a planetary reducer, the torque increasing module 5 can ensure the stability of the output while achieving speed reduction and torque increase, thereby improving the performance and reliability of the device.

[0052] Working principle:

[0053] 1. Spring force application stage: The spring 202 is applied through the specific structure at the bottom of the power main shaft 204, so that the spring 202 is gradually wound up to store elastic potential energy. During this process, the clutch spring 401 of the clutch module 4 is in a compressed state, so that the clutch linkage shaft 402 is separated from the power main shaft 204, thereby ensuring that when the spring is applied, the output end of the device will not rotate accordingly, avoiding unnecessary energy loss and accidental action.

[0054] 2. Preparation and installation stage: After the spring is loaded, the ratchet mechanism in the anti-return module 3 comes into play. The anti-return pawl 302 cooperates with the ratchet gear 304. Due to the action of the pawl, the ratchet is prevented from reversing, ensuring that the spring 202 will not start working directly after the loading is completed. The entire device is installed at the hinge that needs to be unfolded. At this time, even if the hinge is in a locked state, the entire mechanism will not start to operate and is in a ready state waiting for work.

[0055] 3. Hinge expansion working stage: When the hinge is unlocked, the clockwork spring 202 begins to release elastic potential energy, driving the power main shaft 204 to rotate. The rotation of the power main shaft 204 drives the ratchet gear 304 to rotate with the power main shaft 204 through the transmission connection key 307 and other structures. The clutch spring 401 in the clutch module 4 releases the elastic force, so that the clutch linkage shaft 402 is combined with the power main shaft 204, and the power of the power main shaft 204 is transmitted to the torque increasing output shaft 403 through the clutch linkage shaft 402. The torque increasing output shaft 403 and the clutch linkage shaft 402 are meshed with each other through the clutch meshing teeth, and the power is transmitted to the torque increasing module 5. The planetary reducer of the torque increasing module 5 realizes speed reduction on the one hand, and increases torque on the other hand. Its output end outputs stable and sufficient torque as the execution end, driving the hinge to expand quickly and stably.

Claims

1. A hinge unfolding device driven by a clockwork spring as a power source, characterized in that: It includes a base module and a driving module, a non-return module, a clutch module and a torque increasing module arranged on the base module; The driving module includes a spring and a power spindle, and the wound spring drives the power spindle to rotate; The anti-return module uses a ratchet mechanism to ensure that the spring spring does not start working directly after the force is applied; The clutch module uses a clutch mechanism to ensure that the output end does not rotate during the force application process of the clockwork spring; The torque increasing module is a planetary reducer, which ensures output stability while achieving speed reduction and torque increase.

2. A hinge unfolding device driven by a clockwork spring as a power source according to claim 1, characterized in that: The base module comprises an outer shell, a bottom shell and a lower end cover, wherein the lower end cover is arranged at the lower side of the bottom shell, and the outer shell is arranged at the upper side of the bottom shell.

3. The hinge unfolding device driven by a clockwork spring as a power source according to claim 1, characterized in that: The driving module also includes a spring pressure plate, a spring top plate and a pawl rotating shaft. The power spindle is installed in a through hole reserved at the lower part of the base module through a bearing. The pawl rotating shaft is installed in a blind hole between the upper surface of the bottom shell and the inside of the outer shell. The power input end of the clockwork spring is connected to the power spindle, and the power output end of the clockwork spring is connected to the pawl rotating shaft. The spring pressure plate and the spring top plate are sleeved on the power spindle through the center circular hole, and the spring pressure plate and the spring top plate are used to limit the upper and lower positions of the clockwork spring.

4. The hinge unfolding device driven by a clockwork spring as a power source according to claim 1, characterized in that: The anti-return module includes a spring fixed shaft, a non-return pawl, a pawl sleeve, a ratchet gear, a ratchet sleeve, a pawl reset spring and a transmission connecting key. The spring fixed shaft is arranged in an irregular hole on the upper surface of the bottom shell, the non-return pawl is installed above the shoulder of the pawl rotating shaft, and the pawl reset spring is arranged between the top of the spring fixed shaft and the lower part of the non-return pawl.

5. The hinge unfolding device driven by a clockwork spring as a power source according to claim 4, characterized in that: A pawl shaft sleeve arranged between the non-return pawl and the pawl rotating shaft limits the non-return pawl from moving up and down, and the ratchet gear is installed on the shoulder of the power main shaft through the ratchet shaft sleeve and the transmission connecting key.

6. The hinge unfolding device driven by a clockwork spring as a power source according to claim 1, characterized in that: The clutch module includes a clutch spring, a clutch linkage shaft, a torque-increasing output shaft and a clutch spring. A square hole is provided at the bottom of the clutch linkage shaft to cooperate with the power main shaft and is used to connect with the power main shaft to transmit torque. The power main shaft and the clutch linkage shaft are movable in the axial direction. The clutch spring is arranged between the clutch linkage shaft and the power main shaft. Mutually meshing clutch teeth are provided between the clutch linkage shaft and the torque-increasing output shaft. The other end of the torque-increasing output shaft is used to be connected to the torque-increasing module.

7. The hinge unfolding device driven by a clockwork spring as a power source according to claim 3, characterized in that: A first slot is provided at the bottom of the power main shaft, and the first slot is used to limit the power input end of the clockwork spring. The power output end of the clockwork spring is connected to one end of the pawl rotating shaft through a clamping connection.

8. The hinge unfolding device driven by a clockwork spring as a power source according to claim 4, characterized in that: The top of the spring fixing shaft and the bottom of the non-return pawl are both provided with screw holes, and both ends of the pawl reset spring are installed at the two screw holes by using screws and adjusting the height through gaskets.

9. The hinge unfolding device driven by a clockwork spring as a power source according to claim 1, characterized in that: The planetary reducer of the torque increasing module is installed on the housing, the input end of the planetary reducer is connected to the torque increasing output shaft through friction, and the output end of the planetary reducer is the execution end.

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