Spiral damping hinge structure

Abstract

The utility model provides a spiral damping hinge structure, which relates to the hinge field and comprises a shell and a rotating shaft, the shell comprises an outer sleeve and a mounting seat, a shell cavity is arranged in the outer sleeve, an outer rotating shaft extends into the shell cavity, the outer edge of the rotating shaft is hermetically connected with an opening of the shell cavity, and a sealed cavity is formed between the rotating shaft and the shell cavity. The rotating shaft is rotationally connected with the shell cavity through the damper, the damper comprises an adjusting needle, a one-way valve and a spiral sliding block rotating synchronously with the shell, the spiral sliding block is in spiral connection with the rotating shaft and moves along the axis, and the spiral sliding block divides the sealing cavity into a first cavity and a second cavity. Compared with the prior art, according to the spiral damping hinge structure, the spiral sliding block is driven to extrude the first cavity or the second cavity in the turning cover rotating process, damping liquid penetrates through the wide first oil passing channel when the turning cover is opened, and the damping liquid penetrates through the narrow second oil passing channel when the turning cover is closed, so that opening of the turning cover is not affected, and the turning cover is not damaged. And the falling speed of the flip cover can be slowed down, and collision sound is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge field, especially a spiral damping hinge structure. BACKGROUND

[0002] The washing machine is mainly divided into the drum type washing machine and the pulsator type washing machine, and the pulsator type washing machine is famous for rotating washing mode, and its advantage is that the washing effect is better, and the clothes abrasion is smaller, so the pulsator type occupies a larger market share. The cover is generally arranged above the machine body through the hinge in the pulsator type washing machine, and the opening and closing are realized by manually lifting the cover. However, the cover in the existing pulsator type washing machine needs to be supported by hand during the whole closing process, and if not supported carefully, the cover will fall down and make a loud noise, thereby being inconvenient to use. In addition, since the maximum opening angle is unknown, the hinge is broken when the cover is opened beyond the maximum angle. SUMMARY

[0003] In view of the above problems, the utility model provides a spiral damping hinge structure, which can slow down the cover descending speed, avoid collision sound, limit the opening angle of the cover from exceeding the preset angle, and is safe and reliable.

[0004] The utility model adopts the technical scheme:

[0005] A spiral damping hinge structure, comprising a shell connected with a cover and a rotating shaft installed on a machine body, characterized in that the shell comprises an outer sleeve and a mounting seat arranged on one side of the outer sleeve, the outer sleeve is provided with a shell cavity, one end of the shell cavity is open, the other end is closed, the rotating shaft extends into the shell cavity, the outer edge of the rotating shaft is in sealing connection with the opening of the shell cavity, a sealed cavity is formed between the rotating shaft and the shell cavity, the rotating shaft is rotatably connected with the shell cavity through a damper, the damper comprises an adjusting needle, a one-way valve and a spiral slider which rotates synchronously with the shell, the spiral slider is spirally connected with the rotating shaft and moves along the axis, the spiral slider divides the sealed cavity into a first cavity and a second cavity, the second cavity is close to the rotating shaft direction, the first cavity and the second cavity are provided with damping liquid, and the spiral slider is provided with an overflow hole which communicates the first cavity and the second cavity.

[0006] Preferably, at least one inner slide is formed on the inner wall of the shell cavity, and at least one outer convex rib matched with the inner slide is formed on the outer wall of the spiral slider.

[0007] Preferably, the spiral slider is internally provided with a slider through cavity, the slider through cavity is internally provided with a boss, the boss divides the slider through cavity into a spiral inner cavity and a placing cavity, an overflow hole is arranged on the boss, the overflow hole is communicated with the spiral inner cavity and the placing cavity, a spiral groove and a spiral oil groove are arranged on the inner wall of the spiral inner cavity; a spiral convex rib matched with the spiral groove is arranged on the rotating shaft; the valve seat of the one-way valve is matched with the boss in the placing cavity, and the valve body of the one-way valve is inserted into the overflow hole.

[0008] Preferably, the shell cavity comprises an outer cavity inner cavity and a shell outer cavity, and an inner step is formed between the shell outer cavity and the shell inner cavity; the rotating shaft comprises an outer shaft, a connecting shaft and an inner shaft connected in sequence, the connecting shaft is in sealed connection with the shell outer cavity, an outer step is formed between the connecting shaft and the inner shaft, the outer step is attached to the inner step, and a spiral convex rib matched with the spiral slider is arranged on the inner shaft.

[0009] More preferably, a first sealing ring is arranged between the spiral slider and the shell inner cavity, and a second sealing ring is arranged between the connecting shaft and the shell outer cavity.

[0010] More preferably, an end cover for sealing the opening of the shell outer cavity is sleeved on the connecting shaft.

[0011] More preferably, the taper of the needle body in the adjusting needle is in the opposite direction; the needle head of the adjusting needle comprises an end head part and a threaded part, the threaded part is connected with the end head part and the needle body, and the threaded part is in threaded connection with the needle channel in the rotating shaft.

[0012] More preferably, a sealing plug is matched with the outer opening of the needle channel; and a third sealing ring is arranged between the end head part and the needle channel.

[0013] More preferably, the rotation angle of the shell and the rotating shaft is -10-100 degrees.

[0014] Preferably, a mounting hole for mounting is arranged on the mounting seat of the shell, a first placing platform is formed on the outer sleeve, and a second placing platform is formed on the rotating shaft.

[0015] Compared with the prior art, the spiral damping hinge structure has the advantages that: when the flip cover rotates, the spiral slider in the damper is driven to extrude the first cavity or the second cavity, the damping liquid passes through the wide first oil passage in the opening process of the flip cover, and the damping liquid passes through the narrow second oil passage when the flip cover is closed, so that the opening of the flip cover is not affected, the descending speed of the flip cover is slowed down, collision sound is avoided, the limiting effect is achieved, the opening angle of the flip cover is limited to be not more than the preset angle, and safety and reliability are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic view of a spiral damping hinge structure according to the present application.

[0017] Figure 2 An explosion map of the spiral damping hinge structure is provided.

[0018] Figure 3 A schematic view of the outer shell in the spiral damping hinge structure is provided.

[0019] Figure 4 A schematic view of the rotating shaft in the spiral damping hinge structure is provided.

[0020] Figure 5 A schematic view of the spiral sliding block in the spiral damping hinge structure is provided. Figure 1 .

[0021] Figure 6 A schematic view of the spiral sliding block in the spiral damping hinge structure is provided. Figure 2 .

[0022] Figure 7 A schematic view of the adjusting needle in the spiral damping hinge structure is provided.

[0023] Figure 8 A sectional view of the spiral damping hinge structure in a -10-degree opening state is provided.

[0024] Figure 9 A sectional view of the spiral damping hinge structure in a 0-degree opening state is provided.

[0025] Figure 10 A sectional view of the spiral damping hinge structure in a 70-degree opening state is provided.

[0026] Figure 11 A sectional view of the spiral damping hinge structure in a 100-degree opening state is provided.

[0027] Figure 12 A sectional view of the spiral damping hinge structure in a 40-degree closing state is provided.

[0028] Figure 13 A sectional view of the spiral damping hinge structure in a 0-degree closing state is provided.

[0029] Figure 14 A sectional view of the spiral damping hinge structure in a -10-degree closing state is provided. DETAILED DESCRIPTION

[0030] The preferred embodiments of the utility model are described in detail according to the drawings.

[0031] Figures 1 to 14The utility model provides a kind of preferred implementation of spiral damping hinge structure provided by the utility model.As shown in the figure, Figures 1 to 14 The spiral damping hinge structure includes shell 10 connected with the flip and rotating shaft 20 installed on the body, the shell 10 rotates synchronously with the flip, the shell 10 includes outer sleeve 11 and mounting seat 12 arranged on one side of outer sleeve 11, the mounting seat 12 is installed on one side of the flip, the outer sleeve 11 is provided with shell cavity, one end of the shell cavity is open, the other end is closed, the rotating shaft 20 extends into the shell cavity, the outer edge of the rotating shaft 20 is sealingly connected with the opening of the shell cavity, a sealed cavity is formed between the rotating shaft and the shell cavity, the rotating shaft 20 is rotatably connected with the shell cavity through damper 30, the damper 30 includes adjusting needle 31, one-way valve 32 and spiral slider 33 rotating synchronously with the shell, the spiral slider 33 is spirally connected with the rotating shaft 20 and moves along the axis, the spiral slider 33 divides the sealed cavity into first cavity 1101 and second cavity 1102, the second cavity 1102 is close to the direction of rotating shaft, the first cavity 1101 and the second cavity 1102 are provided with damping liquid, the spiral slider 33 is provided with overflow hole 331 communicating the first cavity 1101 and the second cavity 1102;The needle passage 21 for the adjusting needle to pass through is formed in the rotating shaft 20, the adjusting needle 31 includes needle head 311 installed in the rotating shaft and needle body 312 inserted into the inner cavity of the shell, the needle body 312 is tapered, the one-way valve 32 is inserted into the overflow hole 331 and sleeved on the needle body 312, the first oil passage 301 is formed between the one-way valve 32 and the overflow hole 331, the second oil passage 302 is formed between the one-way valve 32 and the adjusting needle 32;By controlling the flow of damping liquid between the first cavity 1101 and the second cavity 1102, the flip is opened without obstruction and the speed of the flip is slowed down.

[0032] As shown in the figure, Figure 1 The mounting hole 1000 for mounting is arranged on the mounting seat 12 of the shell 10, the first placing platform 1104 is formed on the outer sleeve 11, and the second placing platform 2011 is formed on the outer shaft 201 of the rotating shaft 20, so that the shell 10 is conveniently mounted in the flip, and the outer shaft 201 of the rotating shaft 20 is installed in the body.

[0033] When in use, the flip cover is in the -10 degree closed position. Opening the flip cover upwards causes the outer shell 10 to drive the spiral slider 33 to rotate synchronously. Since the spiral slider 33 is spirally connected to the rotating shaft 20, it moves towards the second cavity 1102 under the spiral pushing action, compressing the second cavity 1102 and causing its volume to decrease while the volume of the first cavity 1101 increases. Because the damping fluid cannot be compressed, when the spiral slider 33 moves towards the second cavity 1102, a small portion of the damping fluid flows back to the first cavity 1101 through the second oil passage 302, while most of the damping fluid in the second cavity 1102 flows back through the overflow hole. Impact 331 causes the one-way valve 32 to slightly retract from the overflow hole 331, forming a first oil passage 301 between the one-way valve 32 and the spiral slider 33. The damping fluid flows back to the first cavity 1101 through the first oil passage 301. Due to the conical shape of the needle body 312, the second oil passage 302 between the inner hole of the one-way valve 32 and the needle body 312 becomes narrower during the retraction of the one-way valve 32. The faster the spiral slider 33 moves, the faster the damping fluid returns. Furthermore, the gap in the first oil passage 301 is large, allowing the damping fluid to pass through easily. As a result, the entire damper 30 has no torque output, making it easy to open the flip cover. When the outer shell 10 rotates the spiral slider 33 to the 100° position, the spiral slider 33 moves to its maximum stroke position and can no longer move. At this point, the flip cover is opened to 100°. Figure 8 A schematic diagram showing the flow of damping fluid when the flip cover is in the open state at -10 degrees Celsius. Figure 9 A schematic diagram showing the flow of damping fluid when the flip cover is in the 0-degree open position; Figure 10 A schematic diagram showing the flow of damping fluid when the flip cover is open at 70 degrees. Figure 11 This is a schematic diagram showing the flow of damping fluid when the flip cover is open at 100 degrees.

[0034] When the flip cover is in the 100-degree open position and is closed, the outer shell 10 drives the spiral slider 33 to rotate synchronously. Under the spiral pushing action, the spiral slider 33 moves towards the first cavity 1101, squeezing the damping fluid in the first cavity 1101. A small portion of the fluid flows back to the second cavity 1102 through the first oil passage 301, while most of the damping fluid pushes the one-way valve 32 into the overflow hole 331, causing the first oil passage 301 to close, preventing the damping fluid from flowing back to the second cavity 1102. However, because the needle body 311 is conical, there is a gap between the inner hole of the one-way valve 32 and the needle body 312, forming the second oil passage 302. The damping fluid cannot flow back to the second cavity 1102 through the first oil passage 301, thus the damping fluid slowly flows into the second cavity 1102 from the second oil passage 302. For example... Figure 11When the flip cover is closed to the 40-degree position, the damping fluid passes through the second oil passage 302. The gap of the second oil passage 302 is smaller than that of the first oil passage 301, and an oil pressure difference is formed between the first cavity 1101 and the second cavity 1102, thereby the damper 30 outputs torque, which slows down the falling speed of the flip cover and avoids collision noise. Figure 12 A schematic diagram showing the flow of damping fluid when the flip cover is in the 40-degree closed position; Figure 13 A schematic diagram showing the flow of damping fluid when the flip cover is in the 0-degree closed state; Figure 14 This is a schematic diagram showing the flow of damping fluid when the flip cover is in the -10 degree closed state.

[0035] like Figures 3 to 6 As shown, at least one inner slide 1103 is formed on the inner wall of the outer shell cavity, and at least one outer protrusion 332 that mates with the inner slide 1103 is formed on the outer wall of the spiral slider 33. When the spiral slider 33 is inserted into the outer shell cavity, the outer protrusion 332 is located within the inner slide 1103, thereby driving the spiral slider 33 to rotate synchronously when the outer shell 10 rotates. Simultaneously, when the spiral slider 33 is spirally connected to the rotating shaft 20, it restricts the spiral slider 33 to move only linearly along the axis, thus compressing the hydraulic oil in the first cavity 1101 or the second cavity 1102. Figure 3 As shown, four inner slides 1103 are formed on the inner wall of the outer shell cavity. The four inner slides 1103 are distributed at a 90-degree angle around the central axis of the outer shell cavity. An inner convex ridge is formed between two adjacent inner slides 1103. Correspondingly, four outer convex ridges 332 are distributed on the outer wall of the spiral slider 33. The four outer convex ridges 332 are distributed at a 90-degree angle around the central axis of the spiral slider 33. An outer slide is formed between two adjacent outer convex ridges. During assembly, the four outer convex ridges 332 are placed into the corresponding four inner slides 1103. The inner convex ridges are located in the outer slides, so that the force is evenly distributed.

[0036] The spiral slider 33 is provided with a slider cavity 333, the slider cavity 333 is provided with a boss 334, the boss 334 divides the slider cavity 333 into a spiral cavity 3331 and a placing cavity 332, the overflow hole 331 is arranged on the boss 334, the overflow hole 331 communicates the spiral cavity 3331 and the placing cavity 332, the rotating shaft 20 is inserted into the spiral cavity 331, the valve seat of the one-way valve 32 is in the placing cavity 332 and cooperates with the boss 334, the valve body of the one-way valve 32 is inserted into the overflow hole 331, and the valve body of the one-way valve 32 is sleeved on the needle body 312, so that when the second cavity 1102 flows to the first cavity 1101, the damping liquid pushes the valve seat of the one-way valve 32 away from the boss 334, a gap is left between the valve seat of the one-way valve 32 and the boss 334, thereby forming the first oil passage 301, and the gap between the valve body of the one-way valve 32 and the needle body 312 becomes small, and the second oil passage 302 also becomes small, and the damping liquid that can pass is little; and when the first cavity 1101 flows to the second cavity 1102, the damping liquid pushes the valve seat of the one-way valve 32 close to the boss 334, the gap between the valve seat of the one-way valve 32 and the boss 334 gradually decreases, until the first oil passage 301 is closed, and the gap between the valve body of the one-way valve 32 and the needle body 312 gradually increases, thereby forming the second oil passage 302.

[0037] The inner wall of the spiral cavity 3331 of the spiral slider 33 is provided with a spiral groove 33311, and the rotating shaft 20 is provided with a spiral ridge 22 matched with the spiral groove, so that the spiral slider 33 can rotate synchronously with the shell 10 and can move along the axis at the same time. The inner wall of the spiral cavity 3331 of the spiral slider 33 is provided with at least one spiral oil groove 33312, which facilitates the flow of damping liquid between the first cavity 1101 and the second cavity 1102. When the damping liquid passes through the spiral oil groove 33312, the rotating shaft 20, the spiral slider 33 and the shell 10 can be lubricated, the friction between the rotating shaft 20, the spiral slider 33 and the shell 10 is reduced, most of the heat generated by the relative movement between the three is removed, the local heat generated by the internal movement is reduced, the risk of instability caused by the large temperature difference between the parts in the damper 30 is reduced, and the overall temperature of the damper 30 is ensured to be consistent. Figure 3 As shown in the figure, the inner wall of the spiral cavity 3331 of the spiral slider 33 is provided with three spiral oil grooves 33312, which increase the flow speed of the damping liquid.

[0038] The shell cavity comprises an outer cavity inner cavity 101 and a shell outer cavity 102, an inner step is formed between the shell outer cavity 102 and the shell inner cavity 101, and an inner slide 1103 is arranged on the inner wall of the shell inner cavity 101; the rotating shaft 20 comprises an outer shaft 201, a connecting shaft 202 and an inner shaft 203 connected in sequence, the connecting shaft 202 is in sealed connection with the shell outer cavity 102, an outer step is formed between the connecting shaft 202 and the inner shaft 203, and a helical convex rib 33 is arranged on the inner shaft 203 and helically connected with a helical slider 20; during assembly, the helical slider 33 is placed into the shell inner cavity 101, the helical convex rib 33 on the inner shaft 203 is matched with a helical groove 33311 in the helical slider 20, and the outer step on the connecting shaft 202 is matched with the inner step in the shell cavity, so that the installation position of the rotating shaft 20 is positioned, and the shell inner cavity 101 is also sealed. When the cover is opened to 100 degrees, the helical slider 33 on the inner shaft 203 is moved to be matched with the outer step on the connecting shaft 202. In addition, it is worth noting that when the user does not know that the maximum opening angle of the entire cover is 100 degrees, a large torque (30 N.m) is applied to the cover, and in the rotating shaft 20, the helical slider 33 and the shell 10, because the outer step on the connecting shaft 202 is matched with the inner step in the shell cavity, the helical slider 33 is moved to be matched with the outer step on the connecting shaft 202, so that the force is dispersed through multiple directions and large-area tight fitting, the safety of the damper 30 is ensured, and the entire helical damping hinge structure also has a limiting effect.

[0039] In order to maintain the sealing, the helical slider 33 and the shell inner cavity 101 are provided with a first sealing ring 335, the connecting shaft 202 and the shell outer cavity 102 are provided with a second sealing ring 204, and the connecting shaft 202 is sleeved with an end cover 205 for sealing the opening of the shell outer cavity 102. The helical slider 33 and the connecting shaft 202 are both provided with a sealing ring placing groove.

[0040] As Figure 7As shown, the taper of the needle body 312 in the adjusting needle 31 is in the opposite direction, the needle body 312 is inserted into the inner cavity 101 of the shell through the needle channel 21 of the rotating shaft 20, when the adjusting needle 31 is adjusted to the direction close to the outer cavity 102 of the shell (namely the outer left adjusting), the gap formed by the inner hole of the one-way valve 32 is smaller, and vice versa. That is, the torque of the damper 30 can be controlled by the left and right movement of the adjusting needle 31. The needle head 311 of the adjusting needle 31 comprises an end head part 3111 and a threaded part 3112, the threaded part 3112 is connected between the end head part 3111 and the needle body 312, and the threaded part 3112 is screwed with the needle channel 21 in the rotating shaft 20, so that the adjusting needle 31 can be rotated as needed, thereby controlling the left and right movement of the adjusting needle 31. The needle channel 21 is provided with an internal thread, and the threaded part 3112 is provided with an external thread matched with the internal thread. In order to enhance the sealing performance, the third sealing ring 3113 is arranged between the end head part 3111 and the needle channel 21, the end head part 3111 is provided with a sealing ring accommodating groove, and the outer opening of the needle channel 21 is matched with the sealing plug 313.

[0041] The shell 10 is made of plastic material, when the cover is rapidly rotated from 100° to 0° within 1s, at this time, the damper 30 needs to be rotated from 100° to 0° within 1s, and the torque of the damper 30 will be suddenly increased. At this time, since the shell 10 is made of plastic material, the end cylindrical surface of the shell 10 will be slightly expanded, and the inner diameter thereof will be larger than the original one. The compression rate of the first sealing ring 335 between the helical sliding block 33 and the outer cavity inner cavity 101 is ≤12.5%, which is a small compression rate. Under the instantaneous increase of the oil pressure, the first cavity 1101 and the second cavity 1102 are instantaneously communicated, the damping liquid directly flows back to the second cavity 1102 from the first cavity 1101, the pressure is instantaneously released, the overall safety of the damper 30 is ensured, and the cylindrical surface of the shell returns to the original state.

[0042] In summary, the technical scheme of the utility model can fully and effectively achieve the above-mentioned utility model purposes, the structure and functional principle of the utility model have been fully verified in the embodiments, the expected effects and purposes can be achieved, and various changes or modifications can be made to the embodiments of the utility model without departing from the principles and essence of the utility model. Therefore, the utility model includes all the replacement contents within the range mentioned in the patent application, any equivalent changes made within the range of the patent application of the utility model are within the patent application range of the utility model.

Claims

1. A spiral damper hinge structure comprising a housing connected to a flip cover and a rotating shaft installed on a body, characterized in that, The shell comprises an outer sleeve and a mounting base arranged on one side of the outer sleeve, the outer sleeve is internally provided with a shell cavity, one end of the shell cavity is open, the other end is closed, the rotating shaft extends into the shell cavity, the outer edge of the rotating shaft is sealingly connected with the opening of the shell cavity, a sealed cavity is formed between the rotating shaft and the shell cavity, the rotating shaft is rotatably connected with the shell cavity through a damper, the damper comprises an adjusting needle, a one-way valve and a screw slide which rotates synchronously with the shell, the screw slide is screw-connected with the rotating shaft and moves along the axis, the screw slide divides the sealed cavity into a first cavity and a second cavity, the second cavity is close to the rotating shaft, the first cavity and the second cavity are internally provided with damping liquid, the screw slide is provided with an overflow hole which communicates the first cavity and the second cavity; a needle channel for the adjusting needle to pass through is formed in the rotating shaft, the adjusting needle comprises a needle head mounted in the rotating shaft and a needle body inserted into the inner cavity of the shell, the needle body is tapered, the one-way valve is sleeved on the needle body and inserted into the overflow hole, a first oil passage is formed between the one-way valve and the overflow hole, a second oil passage is formed between the one-way valve and the adjusting needle.

2. The helical damping hinge structure of claim 1, wherein: At least one inner slide is formed on the inner wall of the shell cavity, and at least one outer ridge matched with the inner slide is formed on the outer wall of the screw slide.

3. The helical damping hinge structure of claim 1, wherein: The screw slide is internally provided with a slide through cavity, a boss is arranged in the slide through cavity, the boss divides the slide through cavity into a screw inner cavity and a placing cavity, the overflow hole is arranged on the boss, the overflow hole communicates the screw inner cavity and the placing cavity, a screw groove and a screw oil groove are arranged on the inner wall of the screw inner cavity; a screw ridge matched with the screw groove is arranged on the rotating shaft; the valve seat of the one-way valve is matched with the boss in the placing cavity, and the valve body of the one-way valve is inserted into the overflow hole.

4. The helical damping hinge structure of claim 3, wherein: The shell cavity comprises an outer cavity, an inner cavity and an outer shell cavity, an inner step is formed between the outer shell cavity and the inner cavity; the rotating shaft comprises an outer shaft, a connecting shaft and an inner shaft which are connected in sequence, the connecting shaft is sealingly connected with the outer shell cavity, an outer step is formed between the connecting shaft and the inner shaft, the outer step is attached to the inner step, and a screw ridge for screwing the screw slide is arranged on the inner shaft.

5. The helical damper hinge structure of claim 4, wherein: A first sealing ring is arranged between the screw slide and the inner cavity of the shell, and a second sealing ring is arranged between the connecting shaft and the outer shell cavity.

6. The helical damping hinge structure of claim 4, wherein: An end cover for sealing the opening of the outer shell cavity is sleeved on the connecting shaft.

7. The helical damping hinge structure of claim 1, wherein: The taper of the needle body in the adjusting needle is in the opposite direction; the needle head of the adjusting needle comprises a head part and a threaded part, the threaded part connects the head part and the needle body, and the threaded part is screw-connected with the needle channel in the rotating shaft.

8. The helical damper hinge structure of claim 7, wherein: A sealing plug is matched with the outer opening of the needle channel; a third sealing ring is arranged between the head part and the needle channel.

9. The helical damping hinge structure of claim 1, wherein: The rotating angle of the shell and the rotating shaft is -10-100 degrees.

10. The helical damping hinge structure of claim 1, wherein: Mounting holes for mounting are arranged on the mounting base of the shell, a first placing platform is formed on the outer sleeve, and a second placing platform is formed on the rotating shaft.

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