Opening and closing mechanism, cable chair switch cover device, and cable chair system

Abstract

The utility model relates to passenger ropeway technical field provides a kind of opening and closing mechanism, ropeway sling chair switch cover device and ropeway sling chair system, opening and closing mechanism includes: fixed frame;First cantilever, one end is hinged to first hinge point with fixed frame, the other end is equipped with locking portion and abutting portion;First cantilever can hover at preset angle;Second cantilever, one end is hinged to second hinge point with fixed frame, the other side is first side, abutting portion and first side abut and separate with first side before preset angle, other side is second side and abuts with locking portion;Second side is equipped with notched, for when first cantilever hovers at preset angle, for locking portion embed, and the line of action of force that notched exerts to locking portion passes first hinge point.Such setting, realized the simplification of structure, it is convenient to maintain, and fundamentally solved the deformation caused by the interaction between first cantilever and second cantilever, movement is not smooth etc., improve the rigidity of two cantilevers, operating stability and operation accuracy.

Description

Technical Field

[0001] This utility model relates to the field of passenger ropeway technology, and in particular to an opening and closing mechanism, a ropeway chair switch cover device, and a ropeway chair system. Background Technology

[0002] In the field of passenger ropeways, chairlifts, as key components carrying passengers, rely heavily on the automatic opening and closing function of their seats to enhance passenger experience and ensure safety. Seat covers not only shield passengers from external environmental influences such as wind, rain, and sunlight, but also provide a degree of protection during operation. Therefore, achieving reliable and efficient automatic opening and closing of seat covers is a crucial issue in the design and improvement of passenger ropeway equipment.

[0003] Currently, the most common structure for automatic seat cover opening and closing devices involves connecting a small cantilever to a large cantilever. The small cantilever swings relative to the large cantilever, creating a free travel distance to meet the requirements of track operation and passenger operation within the station. In the locked state, the device requires an additional locking mechanism (such as a mechanical latch on the frame) to cooperate with the small cantilever to lock both the large and small cantilever arms. To unlock, the locking mechanism must first release the restriction on the small cantilever, after which both the large and small cantilever arms can resume free swing, completing the seat cover opening and closing action. Practical applications show that this structure effectively meets the functional requirements of automatic seat cover opening and closing and has become the mainstream solution.

[0004] However, as cableway operations increasingly demand higher reliability and ease of maintenance, the limitations of this structure have become increasingly apparent. Firstly, the presence of the unlocking mechanism significantly increases the complexity of the switch cover track within the station, making daily maintenance inconvenient. Secondly, the structure connecting the large cantilever to the small cantilever results in poor operational precision and significant deformation of the small cantilever under stress. Furthermore, the small cantilever also bends upwards relative to the large cantilever while rotating, increasing friction between them and hindering smooth movement. Currently, the industry often uses low-friction coefficient materials on the contact surface to alleviate this problem, but this method only reduces frictional resistance and cannot fundamentally solve the deformation and stress imbalances caused by structural design flaws. Performance degradation will still occur after long-term use.

[0005] Therefore, how to simplify the structure while improving the stability and reliability of equipment operation has become a pressing technical challenge. Utility Model Content

[0006] This utility model provides an opening and closing mechanism, a cableway chair switch cover device, and a cableway chair system to solve the defects of existing opening and closing mechanisms, which have complex structures and are difficult to guarantee in terms of operational stability and reliability. It has the advantages of simple structure, easy maintenance, and high operational stability and reliability.

[0007] This utility model provides an opening and closing mechanism, including: Fixture; The first cantilever has one end hinged to the fixed frame at a first hinge point, and the other end is provided with a locking part and an abutment part, the locking part and the abutment part protruding axially at the first hinge point; the first cantilever can be suspended at a preset angle. The second cantilever has one end hinged to the fixed frame at a second hinge point, and one side of the other end is a first side, where the abutting part abuts against the first side and can separate from the first side before the first cantilever swings to the preset angle. The other side is a second side and abuts against the locking part. The second side has a slot facing the first hinge point, which is used for the locking part to be inserted when the first cantilever is suspended at the preset angle, and the line of action of the force exerted by the slot on the locking part passes through the first hinge point.

[0008] According to the present invention, the opening is located between the locking part and the first hinge point, and the first hinge point is located between the opening and the second hinge point. The abutting portion and the locking portion are misaligned in the length and width directions of the first cantilever, and the abutting portion is relatively far away from the first hinge point.

[0009] According to the present invention, an opening and closing mechanism further includes a damping structure for positioning the hovering angle of the first cantilever.

[0010] According to the opening and closing mechanism provided by this utility model, the damping structure includes: A first friction surface is formed on the fixed frame; A second friction surface is formed on the first cantilever, and the first friction surface and the second friction surface are in contact and fit together.

[0011] According to the opening and closing mechanism provided by this utility model, the damping structure further includes a loading member for providing positive pressure to the first friction surface and the second friction surface.

[0012] According to the present invention, an opening and closing mechanism is provided, wherein the loading member includes a magnet, and the magnet is connected to at least one of the fixing frame and the first cantilever.

[0013] According to the present invention, an opening and closing mechanism further includes a damping element for balancing the weight of the second cantilever.

[0014] According to the opening and closing mechanism provided by this utility model, the locking part includes a first shaft; one end of the first shaft is fixedly connected to the first cantilever, and the other end is connected to an operating wheel; and / or, The abutment portion includes a second shaft; the end of the second shaft is fixedly connected to the first cantilever.

[0015] This utility model also provides a cableway chairlift switch cover device, including a chair cover mechanism and the opening and closing mechanism described in any one of the above. The end of the second cantilever away from the second hinge point is connected to the seat cover by a pull wire.

[0016] This utility model also provides a cableway chair system, including a chair and the aforementioned cableway chair switch cover device that cooperates with the chair.

[0017] The opening and closing mechanism, cable car chair switch cover device, and cable car chair system provided by this utility model do not have a direct connection between the first and second cantilever arms. They create the required free travel at different hinge points, and with the cooperation of the locking part and the abutment part with the second cantilever arm, the first and second cantilever arms are linked to meet the requirements of different operating states. When the first cantilever arm swings around the first hinge point under the drive of an external force, it acts as the driving member and, under the action of the locking part, drives the second cantilever arm to swing around the second hinge point. During this process, the locking part gradually moves closer to the slot. When the first cantilever arm is suspended at a preset angle, the locking part is embedded in the slot. At this time, when a reverse force is applied to the second cantilever arm, the line of action of the force applied by the slot to the locking part passes through the first hinge point. The torque of this force about the first hinge point is zero, and it cannot drive the first cantilever arm to move around the hinge point, thereby achieving the locking of the first cantilever arm. To unlock, simply swing the first cantilever in the opposite direction. The locking part disengages from the slot, releasing the second cantilever. The second cantilever then resumes free swinging and, under the action of the abutment part, is driven to swing in the opposite direction. When the second cantilever swings around the second hinge point under the drive of an external force, it acts as the driving member and, under the action of the abutment part, drives the first cantilever to swing around the first hinge point. The abutment part of the first cantilever is always in contact with the first side of the second cantilever. Therefore, there is a gap between the locking part of the first cantilever and the slot of the second cantilever, preventing it from getting stuck in the slot and thus preventing self-locking.

[0018] Compared to related technologies, self-locking can be achieved solely through the cooperation between the structures of the first and second cantilever arms, eliminating the need for additional self-locking structures, thus simplifying the structure and facilitating maintenance. Furthermore, the first and second cantilever arms generate the required idle stroke at different hinge points, and there is no direct connection between them. This fundamentally solves the problems of deformation and unsmooth movement caused by their interaction, thereby improving the stiffness, operational stability, and operational accuracy of the two cantilever arms. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the cableway chairlift switch cover device provided in this embodiment of the utility model.

[0021] Figure 2 This is a schematic diagram of the opening and closing mechanism provided in an embodiment of the present invention.

[0022] Figure 3 This is an exploded view of the opening and closing mechanism provided in an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the opening and closing mechanism provided in this embodiment of the present invention before locking.

[0024] Figure 5 This is a schematic diagram of the opening and closing mechanism provided in the embodiment of the present invention in the locked state.

[0025] Figure 6 This is a schematic diagram of the opening and closing mechanism provided in the embodiment of this utility model in the unlocked state.

[0026] Figure label: 10. Fixing frame; 20. First cantilever; 21. First hinge point; 22. Locking part; 220. Operating wheel; 23. Abutting part; 30. Second cantilever; 31. Second hinge point; 32. Groove; 33. First surface; 34. Second surface; 35. Third surface; 36. Fourth surface; 37. Connection point; 40. Damping structure; 41. First friction surface; 42. Loading element; 50. Damping element; 60. Chair cover mechanism; 61. Chair cover; 70. Pull cord. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] To better understand the opening and closing mechanism, cableway chair cover switch device, and cableway chair system provided in this utility model embodiment, we will first introduce its application background. In passenger cableways, the automatic opening and closing function of the chair cover is crucial for improving passenger experience and ensuring safety.

[0029] The current mainstream automatic seat cover opening and closing device connects a small cantilever to a large cantilever. The small cantilever swings relative to the large cantilever to create a free stroke, which meets the requirements of track operation and passenger operation in the station. In the locked state, the device needs to cooperate with the small cantilever with an additional locking mechanism (such as a mechanical buckle set on the frame) to lock the large and small cantilever. When unlocking, the locking mechanism must first release the constraint on the small cantilever, and then the large and small cantilever can swing freely to complete the opening and closing action of the seat cover.

[0030] However, the presence of the unlocking mechanism significantly increases the complexity of the switch cover track within the station, causing inconvenience for daily maintenance. Furthermore, the structure connecting the large cantilever to the small cantilever results in poor operating precision and large deformation of the small cantilever under stress. The small cantilever also bends upwards relative to the large cantilever while rotating, increasing friction between them and causing uneven movement. Currently, the industry often uses low-friction coefficient materials on the contact surface to alleviate this problem, but this method only reduces frictional resistance and cannot fundamentally solve the deformation and stress imbalance caused by structural design flaws. Performance degradation will still occur after long-term use.

[0031] In view of the above problems, the present invention provides an opening and closing mechanism, a cableway chair switch cover device, and a cableway chair system, which have the advantages of simple structure, easy maintenance, and high stability and reliability in operation.

[0032] The following is combined with Figures 1 to 6 This invention describes the opening and closing mechanism, the cableway chair switch cover device, and the cableway chair system.

[0033] Reference Figures 1 to 3An opening and closing mechanism includes a fixed frame 10, a first cantilever 20, and a second cantilever 30. One end of the first cantilever 20 is hinged to the fixed frame 10 at a first hinge point 21, and the other end is provided with a locking part 22 and an abutment part 23. The locking part 22 and the abutment part 23 are staggered and protrude axially from the first hinge point 21, and the first cantilever 20 can be suspended at a preset angle. One end of the second cantilever 30 is hinged to the fixed frame 10 at a second hinge point 31, and one side of the other end is a first side, where the abutment part 23 abuts against the first side and can be separated from the first side before the first cantilever 20 swings to the preset angle. The other side is a second side and abuts against the locking part 22. The second side is provided with a slot 32 facing the first hinge point 21, which is used to allow the locking part 22 to be inserted when the first cantilever 20 is suspended at the preset angle. The line of action of the force exerted by the slot 32 on the locking part 22 passes through the first hinge point 21.

[0034] In practical applications, the first cantilever 20 and the second cantilever 30 are not directly connected. They create the required free stroke at different hinge points, and with the cooperation of the locking part 22 and the abutment part 23 with the second cantilever 30, the first cantilever 20 and the second cantilever 30 are linked to meet the requirements of different operating states.

[0035] When the first cantilever 20 swings around the first hinge point 21 under the drive of an external force, it acts as the driving member and, under the action of the locking part 22, drives the second cantilever 30 to swing around the second hinge point 31. During this process, the locking part 22 gradually moves closer to the slot 32. When the first cantilever 20 is suspended at a preset angle, the locking part 22 is inserted into the slot 32. At this time, when a force is applied to the second cantilever 30 in the opposite direction, the line of action of the force applied by the slot 32 to the locking part 22 passes through the first hinge point 21. The torque of this force about the first hinge point 21 is zero, and it cannot drive the first cantilever 20 to move around the hinge point, thereby locking the second cantilever 30. To unlock, simply swing the first cantilever 20 in the opposite direction, and the locking part 22 disengages from the slot 32, releasing the locking of the second cantilever 30. The second cantilever 30 resumes free swinging and, under the action of the abutment part 23, is driven to swing in the opposite direction.

[0036] When the second cantilever 30 swings around the second hinge point 31 under the drive of an external force, it acts as the active member and drives the first cantilever 20 to swing around the first hinge point 21 under the action of the abutment part 23. Since the abutment part 23 separates from the first side before the first cantilever 20 swings to the preset angle, the abutment part 23 and the first side can only maintain a close contact state, and the first cantilever 20 cannot reach the preset angle to form a self-locking mechanism with the second cantilever 30.

[0037] It is understandable that the aforementioned opening and closing mechanism can be used to control the opening and closing of the cableway chair cover 61, or it can be used on any device that needs to achieve the opening and closing function, such as the chair railing.

[0038] To better understand the operation of the opening and closing mechanism, in a specific application scenario, this mechanism is used to open and close the chair seat cover 61. Specifically, a cable 70 connects the second cantilever 30 and the chair seat cover 61. The swing of the second cantilever 30 controls the opening and closing state of the chair seat cover 61. The swing of the first cantilever 20 towards a preset angle is defined as a forward swing. When the first cantilever 20 is in its initial position, the chair seat cover 61 is fully open, and the forward swing direction is the closing direction. By creating the required idle travel at different hinge points by the first cantilever 20 and the second cantilever 30, the needs of both passenger operation and station track operation are met.

[0039] When there are no passengers in the chairlift, the station track drives the first cantilever 20 in the forward direction, and the chair cover 61 automatically closes to prevent passengers from being pinched. At this time, the first cantilever 20 acts as the active component. When the station track drives the first cantilever 20 to swing to a preset angle, the locking part 22 engages with the slot 32. If the cableway is windy and tries to blow open the chair cover 61, it is equivalent to applying a reverse force to the second cantilever 30. The line of action of the force applied by the slot 32 to the locking part 22 passes through the first hinge point 21 and cannot drive the first cantilever 20 to swing in the reverse direction. The locking part 22 prevents the second cantilever 30 from rotating, thus locking it and preventing the cover from opening. When the chairlift needs to open the cover upon entering the station, the station track will press down on the first cantilever 20, and the locking part 22 will disengage from the slot 32 to release the lock on the second cantilever 30. When the abutting part 23 abuts against the first side, it drives the second cantilever 30 to swing in the reverse direction, and the chairlift opens the cover.

[0040] When the passenger closes the cover, since the flexible connection of the pull cable 70 basically does not exert a reverse force on the second cantilever 30, and since the abutment part 23 separates from the first side before the first cantilever 20 swings to the preset angle, even when the second cantilever 30 acts as the active member, the abutment part 23 and the first side can only remain in contact and cannot drive the first cantilever 20 to reach the preset angle to form a self-locking mechanism.

[0041] Compared to related technologies, self-locking can be achieved solely through the cooperation between the structures of the first cantilever 20 and the second cantilever 30, eliminating the need for additional self-locking structures, thus simplifying the structure and facilitating maintenance. Furthermore, the first cantilever 20 and the second cantilever 30 generate the required idle stroke at different hinge points, and there is no direct connection between them. This fundamentally solves the problems of deformation and unsmooth movement caused by their interaction, thereby improving the stiffness, operational stability, and operational accuracy of the two cantilever arms.

[0042] Understandably, the mounting bracket 10 serves as the supporting foundation for the entire structure, providing installation positions for various components. Its specific structure can be flexibly designed and adjusted according to actual needs. At the same time, the material of the mounting bracket 10 can also be selected according to actual working conditions, as long as it meets the required strength requirements.

[0043] Furthermore, the relative positions of the first cantilever 20 and the second cantilever 30 can be adjusted adaptively according to different needs and usage environments. For example, the first hinge point 21 and the second hinge point 31 can be located on the same side of the locking part 22, or the first hinge point 21 and the second hinge point 31 can be located on opposite sides of the locking part 22. Based on the different relative positions of the first cantilever 20 and the second cantilever 30, the self-locking and unlocking process can be achieved simply by adaptively adjusting the relative positions of the locking part 22, the abutment part 23, and the slot 32.

[0044] In one example of this utility model, refer to Figures 2 to 6 The first hinge point 21 and the second hinge point 31 are located on the same side of the locking part 22. Specifically, the slot 32 is located between the locking part 22 and the first hinge point 21, and the first hinge point 21 is located between the slot 32 and the second hinge point 31. The abutment part 23 and the locking part 22 are offset in the length and width directions of the first cantilever 20, and the abutment part 23 is relatively far away from the first hinge point 21. This arrangement can reduce the space occupied by the first cantilever 20 and the second cantilever 30, and realize the miniaturization of the overall structure and the improvement of space utilization.

[0045] It is understandable that the relative positions of the first hinge point 21 and the second hinge point 31 with the locking part 22 determine the definition of the swing direction. When both are arranged on the right side of the locking part 22, the clockwise swing of the first cantilever 20 and the second cantilever 30 is the positive swing, and the counterclockwise swing is the negative swing. If both are arranged on the left side of the locking part 22, the swing direction is defined in the opposite way, with the counterclockwise swing being the positive swing and the clockwise swing being the negative swing. The above-mentioned relative position layout of the first hinge point 21, the second hinge point 31, and the locking part 22, and the resulting definitions of the positive and negative swing directions, are all design schemes that can be flexibly selected according to the actual application scenario. They can be adapted according to the actual needs such as the installation space of the mechanism, the direction of power drive, and operating habits, and are not restricted here.

[0046] In detail, the second side of the second cantilever 30 is formed as a first surface 33 from its free end to the slot 32. One side of the slot 32 is connected to the first surface 33 to form a second surface 34, and the other side extends toward the second hinge point 31 to form a third surface 35. The first side of the second cantilever 30 is formed with a fourth surface 36 for abutting with the abutting part 23.

[0047] With this configuration, initially, the locking part 22 abuts against the first surface 33, and the abutting part 23 abuts against the fourth surface 36. As the first cantilever 20 swings forward, the locking part 22 moves along the first surface 33 toward the slot 32, and the abutting part 23 moves along the fourth surface 36. When the first cantilever 20 swings to a preset angle, the abutting part 23 separates from the fourth surface 36, and the locking part 22 engages with the slot 32. At this point, if a reverse force is applied to the second cantilever 30, the smaller cantilever cannot rotate under the combined constraint of the second surface 34 and the third surface 35, thus locking the second cantilever 30. To unlock, the first cantilever 20 is rotated in the opposite direction. Since the second surface 34 and the third surface 35 can no longer restrict the first cantilever 20, the locking part 22 disengages from the slot 32, unlocking the cantilever. As the first cantilever 20 continues to rotate, the abutting part 23 abuts against the fourth surface 36, causing the second cantilever 30 to rotate in the opposite direction.

[0048] In a further example of this utility model, the locking part 22 includes a first shaft, one end of which is fixedly connected to the first cantilever 20, and the other end is connected to an operating wheel 220, which is mainly used to cooperate with the track in the station.

[0049] In a further example of this utility model, a first bushing is fitted onto the first shaft, and the first bushing is rotatably engaged with the first shaft.

[0050] With this configuration, the first bushing can rotate flexibly relative to the first shaft. When the first cantilever 20 drives the locking part 22 to approach and engage with the slot 32 of the second cantilever 30, the first bushing can adapt to the contact angle of the slot 32 by its own rotation, reducing rigid impact and frictional loss during engagement. Simultaneously, the rotating connection structure allows the locking part 22 to finely adjust its posture during engagement, ensuring precise fit with the slot 32 and improving the smoothness and reliability of the locking action. Furthermore, when the first bushing wears out due to prolonged use, it can be replaced without disassembling the first shaft, improving maintenance convenience.

[0051] In a further example of this utility model, the abutment portion 23 includes a second shaft, one end of which is fixedly connected to the first cantilever 20.

[0052] In a further example of this utility model, a second bushing is fitted onto the second shaft, and the second bushing is rotatably engaged with the second shaft.

[0053] This design allows the second bushing to rotate flexibly relative to the second shaft. When the abutment part 23 contacts the second cantilever 30, the second bushing can adapt to changes in the contact angle by rotating, converting sliding friction into rolling friction, thereby reducing contact resistance and wear, and improving the smoothness of the mechanism's movement. Simultaneously, the rotating connection structure allows the abutment part 23 to finely adjust its posture under force, avoiding component damage caused by rigid collisions and enhancing the stability of the contact fit. Furthermore, when the second bushing wears out due to prolonged use, it can be replaced without disassembling the second shaft, improving maintenance convenience.

[0054] In a further example of this invention, the portion of the first side that contacts the abutment 23 is provided with an arc-shaped transition section. This configuration optimizes the stress state and smoothness of movement when the abutment 23 contacts the first side. When the abutment 23 rotates with the first cantilever 20 and contacts the first side, the arc-shaped section guides the movement trajectory of the abutment 23 through its smooth curved surface, avoiding rigid impacts or jamming caused by sharp corner contact. Simultaneously, it disperses the instantaneous stress at the contact point, reducing localized wear.

[0055] To achieve the suspension of the first cantilever 20 at a preset angle, in one example of this invention, the opening and closing mechanism further includes a damping structure 40 for positioning the suspension angle of the first cantilever 20. Depending on different practical needs and working principles, the damping structure 40 can be configured in different structural forms, as long as it can achieve the suspension of the first cantilever 20 at the preset angle.

[0056] In one example of this invention, the damping structure 40 includes a first friction surface 41 and a second friction surface; wherein the first friction surface 41 is formed on the fixed frame 10, and the second friction surface is formed on the first cantilever 20, and the first friction surface 41 and the second friction surface are in contact with each other. This arrangement generates friction through the contact between the first friction surface 41 and the second friction surface, thereby balancing the rotational tendency of the first cantilever 20 that may be caused by its own weight or other external forces, allowing the first cantilever 20 to be stably suspended at any angle, providing the basic conditions for the subsequent locking part 22 to be inserted into the slot 32 and for locking the second cantilever 30.

[0057] The specific materials, friction coefficients, and forming methods of the first friction surface 41 and the second friction surface can be selected and designed according to actual working conditions, and no specific restrictions are imposed in this embodiment of the utility model.

[0058] In a further embodiment of this invention, one of the first friction surface 41 and the second friction surface may protrude axially from the first hinge point 21. This configuration reduces the area of ​​the first friction surface 41 and the second friction surface, lowering the processing difficulty and cost. Furthermore, it reduces the effective area, avoiding unnecessary wear.

[0059] In detail, the first friction surface 41 protrudes axially from the first hinge point 21 and is arranged in an arc shape with the first hinge point 21 as the center.

[0060] In a further example of this invention, the damping structure 40 also includes a loading member 42 for providing positive pressure to the first friction surface 41 and the second friction surface. With this configuration, the loading member 42 actively applies pressure, generating a stable and reliable frictional force between the first friction surface 41 and the second friction surface, thus more reliably ensuring the stable suspension of the first cantilever 20 at any angle.

[0061] Depending on the working principle, the loading element 42 can adopt different structural forms. For example, the loading element 42 can be a magnet, with the magnet placed between the first friction surface 41 and the second friction surface, using magnetic attraction to provide pressure to the first friction surface 41 and the second friction surface; the loading element 42 can also be an elastic element such as a spring, using the spring force to press the first friction surface 41 and the second friction surface together. Of course, the loading element 42 can also adopt other structural forms, which will not be listed in this embodiment of the utility model.

[0062] In this embodiment, the loading member 42 is a magnet, which is disposed on at least one of the fixing frame 10 and the first cantilever 20, and corresponds to the position of the first friction surface 41 and the second friction surface.

[0063] More specifically, the magnet is mounted on the first cantilever 20.

[0064] In a further example of this invention, the opening and closing mechanism also includes a damping element 50 for balancing the weight of the second cantilever 30 itself. This configuration provides resistance opposite to the rotational tendency generated by the weight of the second cantilever 30, thus counteracting or reducing its sag tendency due to its own weight, ensuring the smoothness and accuracy with which the second cantilever 30 follows the first cantilever 20.

[0065] Understandably, the damping element 50 can adopt different structural forms depending on the different working principles.

[0066] In one example of this invention, the damping element 50 can be a torsion spring, which is connected to the second hinge point 31 of the second cantilever 30. With this configuration, the torsion spring provides an opposing resistance torque through its own torsional elasticity, thereby balancing the torque generated by gravity and keeping the second cantilever 30 stable during movement, avoiding swaying or positional displacement caused by its own weight.

[0067] The cableway chairlift switch cover device provided by this utility model is described below. The cableway chairlift switch cover device described below can be referred to in correspondence with the opening and closing mechanism described above.

[0068] Reference Figure 1A cableway chairlift switch cover device includes a chair cover mechanism 60 and an opening and closing mechanism provided in any of the above examples; one end of the second cantilever 30 away from the second hinge point 31 is connected to the chair cover 61 on the chair cover mechanism 60 via a pull wire 70.

[0069] In detail, the end of the second cantilever 30 away from the second hinge point 31 is provided with a connection point 37, and the pull wire 70 is connected to the connection point 37.

[0070] By connecting the end of the second cantilever 30 away from the second hinge point 31 to the seat cover 61 with a pull wire 70, the swinging motion of the second cantilever 30 pulls the pull wire 70, thereby controlling the opening and closing state of the seat cover 61 on the seat cover mechanism 60. When the second cantilever 30 swings forward with the first cantilever 20, the pull wire 70 is pulled, causing the seat cover 61 to close; when the second cantilever 30 moves in the opposite direction, the pull wire 70 is released, and under the action of the spring on the seat cover mechanism 60, the seat cover 61 is driven to remain in the open state.

[0071] On the other hand, this utility model also provides a cableway chair system, including a chair and the aforementioned cableway chair switch cover device.

[0072] Finally, it should be further clarified that the various devices not described in detail above, such as the chair cover mechanism 60 and the hanging chair, are all commercially available devices and are widely used in the field as mature devices. Their specific structures and working principles can be referred to the existing technology, and will not be elaborated in this utility model embodiment.

[0073] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0074] The opening and closing mechanism, cableway chair switch cover device, and cableway chair system provided by this utility model embodiment can form a self-locking mechanism simply by the cooperation between the structures of the first cantilever 20 and the second cantilever 30, without the need for an additional self-locking structure, thus simplifying the structure and facilitating maintenance. At the same time, the first cantilever 20 and the second cantilever 30 create the required idle stroke at different hinge points, and there is no direct connection between the two, which fundamentally solves the problems of deformation and unsmooth movement caused by the interaction between the two, and improves the rigidity, operational stability, and operational accuracy of the two cantilever arms.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An opening and closing mechanism characterized by comprising: include: Fixture (10); The first cantilever (20) has one end hinged to the fixed frame (10) at the first hinge point (21), and the other end is provided with a locking part (22) and an abutment part (23). The locking part (22) and the abutment part (23) protrude axially at the first hinge point (21); the first cantilever (20) can be suspended at a preset angle. The second cantilever (30) has one end hinged to the fixed frame (10) at the second hinge point (31), and one side of the other end is the first side, the abutting part (23) abuts against the first side and can separate from the first side before the first cantilever (20) swings to the preset angle, and the other side is the second side and abuts against the locking part (22); the second side is provided with a slot (32), the slot (32) faces the first hinge point (21) side, and is used for the locking part (22) to be inserted when the first cantilever (20) is suspended at the preset angle, and the line of action of the force applied by the slot (32) to the locking part (22) passes through the first hinge point (21).

2. The opening and closing mechanism according to claim 1, characterized in that The slot (32) is located between the locking part (22) and the first hinge point (21), and the first hinge point (21) is located between the slot (32) and the second hinge point (31); The abutting part (23) and the locking part (22) are misaligned in the length and width directions of the first cantilever (20), and the abutting part (23) is relatively far away from the first hinge point (21).

3. The opening and closing mechanism according to claim 1, characterized by It also includes a damping structure (40) for positioning the hovering angle of the first cantilever (20).

4. The opening and closing mechanism according to claim 3, characterized in that The damping structure (40) includes: A first friction surface (41) is formed on the fixed frame (10); The second friction surface is formed on the first cantilever (20), and the first friction surface (41) is in contact with the second friction surface.

5. The opening and closing mechanism according to claim 4, characterized in that, The damping structure (40) further includes a loading member (42) for providing positive pressure to the first friction surface (41) and the second friction surface.

6. The opening and closing mechanism according to claim 5, characterized in that The loading element (42) includes a magnet connected to at least one of the fixing frame (10) and the first cantilever (20).

7. The opening and closing mechanism according to claim 3, characterized in that It also includes a damping element (50) for balancing the weight of the second cantilever (30).

8. The opening and closing mechanism according to any one of claims 1 to 7, characterized in that, The locking part (22) includes a first shaft; one end of the first shaft is fixedly connected to the first cantilever (20), and the other end is connected to an operating wheel (220); and / or, The abutment portion (23) includes a second shaft; the end of the second shaft is fixedly connected to the first cantilever (20).

9. A cableway chairlift switch cover device, characterized in that, Includes a chair cover mechanism (60) and an opening and closing mechanism as described in any one of claims 1-8; The end of the second cantilever (30) away from the second hinge point (31) is connected to the seat cover (61) via a pull wire (70).

10. A system of chairlifts, characterized in that, Includes a hanging chair and a cableway chair switch cover device as described in claim 9, which cooperates with the hanging chair.

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