Three-position switch and climbing device

Abstract

The utility model relates to high altitude climbing equipment technical field provides a three -position switch and climbing equipment. Three -position switch includes: pressing subassembly, trigger subassembly and micro -switch, pressing subassembly includes button, guide piece and first elastic piece, button is configured as movably located in handrail, guide piece and button are connected, and first elastic piece is located between guide piece and handrail, trigger subassembly is configured as telescopic setting, and rotatably located in handrail, trigger subassembly and guide piece sliding contact, and guide piece is used for under the control of button and first elastic piece to guide trigger subassembly to rotate relative to handrail, micro -switch is configured as located in handrail, and with trigger subassembly opposite setting. Three -position switch of the utility model, no matter the operator selects to hold tightly handrail or to loosen handrail in the process of climbing equipment operation, will control climbing equipment instant parking, ensures that the operator safe and reliable to climbing equipment executes emergency parking control.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude climbing equipment technology, and in particular to a three-position switch and climbing equipment. Background Technology

[0002] With societal development, high-altitude climbing operations and aerial transportation are extremely common, especially in the wind power generation sector, where climbing equipment is frequently used for personnel and material transport between aerial work platforms and the ground. Climbing equipment is a small, open-sided lifting device where the operator stands on a platform. Due to its open nature, scrapes and collisions during lifting and lowering, as well as the operator's movements, are significant safety factors.

[0003] Currently, when dealing with an emergency stop during equipment operation, the operator usually needs to immediately release the button switch on the handrail to stop the entire climbing equipment. This operating mode has the following two safety hazards: (1) When faced with an emergency or critical situation, ordinary people tend to instinctively grip the handrail instead of letting go immediately, which may lead to operational accidents; (2) In emergency or critical situations, if the hands are released from the handrail and the operator relies solely on the feet on the pedal, it is difficult to ensure the operator's balance and may easily lead to accidents such as bumps and falls.

[0004] It is evident that the design of the push-button switches on the handrails of existing climbing equipment is unreasonable, posing significant safety hazards and making it difficult to ensure that operators can safely and reliably perform emergency stop control on the climbing equipment. Utility Model Content

[0005] This invention provides a three-position switch and climbing device to at least solve or improve the problem that the push-button switches on the handrails of existing climbing devices cannot ensure that the operator can safely and reliably perform emergency stop control on the climbing device.

[0006] In a first aspect, this utility model provides a three-position switch for use in the handrail of climbing equipment, comprising: The pressing component includes a button, a guide, and a first elastic member. The button is configured to be movably disposed on the armrest, the guide is connected to the button, and the first elastic member is disposed between the guide and the armrest. A trigger component is configured to be retractable and rotatably disposed on the armrest, the trigger component being in sliding contact with the guide member, the guide member being used to guide the trigger component to rotate relative to the armrest under the control of the button and the first elastic member; A micro switch is configured to be located on the handrail and disposed opposite to the triggering component; The trigger component is configured to be in a first position relative to the guide before and after the button is pressed once, and to move from the first position to a second position relative to the guide when the button is pressed twice in sequence; When the trigger component is in the first position, the trigger component can switch between an initial length and a first length under the drive of the guide. The trigger component will not trigger the micro switch when it is in the initial length, but will trigger the micro switch when it is in the first length. When the trigger component is in the second position, the trigger component is in the second length, and the trigger component will not trigger the micro switch when it is in the second length.

[0007] According to the present invention, a three-position switch is provided, the triggering component comprising: A rotating element is configured to be rotatably disposed on the handrail; A trigger element is movably disposed on the rotating member along the extending direction of the rotating member, and the end of the trigger element away from the rotating member slides in contact with the guide element. The trigger element is used to trigger the micro switch. The second elastic element is disposed between the rotating element and the triggering element.

[0008] According to the present invention, a three-position switch is provided, wherein the rotating component is provided with a guide groove, and the opening of the guide groove is disposed on one side facing the guide component; At least a portion of the trigger is movably inserted into the guide groove, and the second elastic member is disposed within the guide groove and abuts against the bottom of the guide groove between the trigger and the trigger.

[0009] According to the present invention, a three-position switch is provided, wherein the inner wall of the guide groove is provided with a first guide portion, and the side wall of the trigger member is provided with a second guide portion, and the first guide portion and the second guide portion slide in cooperation along the moving direction of the trigger member.

[0010] According to the three-position switch provided by this utility model, the triggering component further includes: An angle limiting structure is configured to be disposed between the rotating member and the armrest for limiting the rotation angle of the rotating member relative to the armrest when the button is pressed once.

[0011] According to the present invention, a three-position switch is provided, wherein the angle limiting structure includes: A limit rod is configured to be installed on the handrail; A strip-shaped hole is provided in the rotating component, and the limiting rod passes through the strip-shaped hole; When the button is not pressed, the limiting rod is located at the first end of the strip hole; when the button is pressed, the limiting rod is located at the second end of the strip hole.

[0012] According to the present invention, a three-position switch is provided, wherein the guide member is provided with a slot and a guide slope, the first wall of the slot is connected to the guide slope and is configured to be set at an angle; Before and after the button is pressed once, one end of the trigger component facing the guide is defined in the slot, so that the trigger component is in a first position relative to the guide. When the button is pressed twice in sequence, the end of the trigger component facing the guide can cross the first groove wall of the slot to reach the guide slope, so as to move the trigger component relative to the guide from the first position to the second position.

[0013] According to the present invention, when the button is released from a second press, the first elastic member is used to drive the guide member to move the button away from the armrest, and the guide slope is used to guide the trigger component to return from the second position to the first position relative to the guide member.

[0014] According to the present invention, a three-position switch is provided, wherein the slot is configured with the slot opening facing downwards, and the angle between the guide slope and the vertical plane is greater than the angle between the first wall of the slot and the vertical plane.

[0015] According to the present invention, a three-position switch is provided in which at least a portion of the buttons are configured to be movably confined within the mounting groove of the armrest; The guide is disposed on the side of the button facing the bottom of the mounting groove, and the first elastic member abuts between the guide and the bottom of the mounting groove; the trigger component is rotatably disposed in the mounting groove, and the micro switch is located in the mounting groove and is disposed close to the bottom of the mounting groove.

[0016] According to the present invention, a three-position switch is provided, wherein the first end of the button is rotatably connected to the mounting groove, the guide is disposed at the second end of the button, and at least part of the button is exposed outside the mounting groove.

[0017] In a second aspect, the present invention also provides a climbing device, comprising: a handrail and a three-position switch as described above disposed on the handrail; The microswitch is configured to stop the climbing device when it is not triggered, and to start the climbing device when it is triggered.

[0018] This utility model provides a three-position switch and climbing device. The three-position switch is equipped with a pressing component, a triggering component, and a micro switch. The pressing component includes a button, a guide, and a first elastic element. Under the control of the button and the first elastic element, the guide guides the triggering component to rotate relative to the handrail. Based on the extendable nature of the triggering component, when the operator holds the handrail to apply the first press operation to the button, the triggering component is ensured to be in the first position relative to the guide and rotate towards one side of the handrail, thus triggering the micro switch to control the climbing device to start. When an emergency stop is needed, the operator can release the handrail safely to release the first press operation to the button. This ensures that the triggering component rotates away from the handrail under the guidance of the guide and returns to its initial position, thus releasing the trigger of the micro switch. In an emergency, the operator can also apply the button a second time, ensuring that the guide guides the triggering component to rotate away from the handrail and switch from the first position to the second position relative to the guide, thus releasing the trigger of the micro switch and achieving the same purpose of stopping the climbing device.

[0019] As can be seen from the above, the three-position switch described in this utility model will control the climbing equipment to stop immediately regardless of whether the operator chooses to grip or release the handrail during the operation of the climbing equipment, thus ensuring that the operator can safely and reliably perform emergency stop control on the climbing equipment. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is one of the structural schematic diagrams of a three-position switch provided by this utility model installed on the handle of a handrail.

[0022] Figure 2 This utility model provides Figure 1 A schematic diagram of the explosion structure.

[0023] Figure 3 This is a schematic diagram of the pressing component provided by this utility model.

[0024] Figure 4 This is a cross-sectional structural schematic diagram of the guide component provided by this utility model.

[0025] Figure 5 This is a schematic diagram of the trigger component provided by this utility model.

[0026] Figure 6 This is a schematic diagram of the trigger component provided by this utility model, showing its arrangement relative to the guide member before and after the button is pressed once; wherein, Figure 6 (a1) is a schematic diagram showing the setting of the trigger component relative to the guide before the button is pressed once (after the button is released from a press). Figure 6 (b1) is a schematic diagram showing the setting of the trigger component relative to the guide after the button is pressed once.

[0027] Figure 7 This is a schematic diagram of the trigger component provided by this utility model, showing its arrangement relative to the guide member when the button is pressed a second time and when the second press is released; wherein, Figure 7 (a2) is a schematic diagram showing the setting of the trigger component relative to the guide when the button is pressed a second time. Figure 7 (b2) is a schematic diagram of the trigger component being positioned relative to the guide when the button is released from a second press.

[0028] Figure 8 This is the second schematic diagram of the structure of the three-position switch provided by this utility model installed on the handle of the handrail.

[0029] Figure label: 1. Three-position switch; 101. First hinge shaft; 102. Second hinge shaft; 11. Pressing assembly; 111. Button; 1110. Bayonet; 112. Guide component; 1120. Tongue; 1121. Slot; 1122. Guide slope; 113. First elastic component; 12. Trigger assembly; 121. Rotating component; 1211. Guide groove; 1212. First guide part; 122. Trigger component; 1221. Trigger head; 1222. Second guide part; 123. Second elastic component; 124. Angle limiting structure; 1241. Limiting rod; 1242. Strip hole; 13. Micro switch; 2. Handrail; 201. Mounting slot; 21. Handle; 211. First housing; 212. Second housing. Detailed Implementation

[0030] 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.

[0031] The following is combined with Figures 1-8 The three-position switch and climbing device provided by the present invention will be described in detail through specific embodiments and application scenarios.

[0032] In the first aspect, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, this utility model embodiment provides a three-position switch applied to the handrail 2 of a climbing device. The three-position switch 1 includes: a pressing component 11, a triggering component 12, and a micro switch 13. The pressing component 11 includes a button 111, a guide 112 and a first elastic member 113. The button 111 is configured to be movably disposed on the armrest 2. The guide 112 is connected to the button 111. The first elastic member 113 is disposed between the guide 112 and the armrest 2. The trigger component 12 is configured to be retractable and rotatably disposed on the armrest 2. The trigger component 12 is in sliding contact with the guide 112, which is used to guide the trigger component 12 to rotate relative to the armrest 2 under the control of the button 111 and the first elastic member 113. The micro switch 13 is configured to be located on the handrail 2 and positioned opposite the trigger assembly 12; The trigger component 12 is configured to be in a first position relative to the guide 112 before and after the button 111 is pressed once, and to move from the first position T1 to the second position T2 relative to the guide 112 when the button 111 is pressed twice in sequence. When the trigger component 12 is in the first position T1, the trigger component 12 can switch between the initial length and the first length under the drive of the guide 112. When the trigger component 12 is in the initial length, it will not trigger the micro switch 13, but when it is in the first length, it will trigger the micro switch 13. When the trigger component 12 is in the second position T2, the trigger component 12 is in the second length, and the trigger component 12 will not trigger the micro switch 13 when it is in the second length.

[0033] It is understandable that the handrail 2 of the climbing equipment is usually equipped with a handle 21 for the operator to hold, and a three-position switch 1 can be set on the handle 21 so that the operator will trigger the three-position switch 1 to switch states when holding the handle 21.

[0034] For the pressing component 11, the button 111 can be configured to be slidably mounted on the handle 21 or rotatably mounted on the handle 21, without any specific limitation.

[0035] The guide member 112 can be integrated with the button 111, or the guide member 112 can be detachably connected to the button 111; there is no specific limitation in this regard. For example, the button 111 has a groove on the side facing the armrest 2, and the groove wall is provided with a latch 1110. The side wall of the guide member 112 is provided with a latch 1120. The guide member 112 is inserted into the groove of the button 111 so that the latch 1120 and the latch 1110 form a snap-fit ​​engagement.

[0036] The first elastic element 113 can be a spring. The first end of the first elastic element 113 abuts against the side of the guide 112 away from the button 111, and the second end of the first elastic element 113 abuts against the armrest 2.

[0037] Thus, when the operator presses button 111, button 111 will cause guide 112 to move toward one side of handrail 2, and when the operator releases the press of button 111, the first elastic element 113 will drive guide 112 to move toward the side away from handrail 2.

[0038] For the trigger component 12, it is connected to the brake (e.g., button or cantilever) of the micro switch 13. The trigger component 12 can be a telescopic rod capable of adapting to external pressure. The trigger component 12 is rotatably mounted on the handrail 2 via a first hinge shaft 101, and the telescopic end of the trigger component 12 slides in contact with the guide member 112. Thus, when the guide member 112 moves relative to the handrail 2 (e.g., closer to or farther away), the trigger component 12 will rotate relative to the handrail 2 under the guidance of the guide member 112, while also adaptively changing its length to achieve trigger control of the micro switch 13.

[0039] In practical applications, such as Figure 6 As shown in (a1), when the button 111 is not pressed, the telescopic end of the trigger component 12 extends to the first position T1 on the guide 112. At this time, the trigger component 12 will not rotate relative to the handrail 2. The trigger component 12 is at its initial length and will not trigger the micro switch 13. Since the micro switch 13 has not received the trigger command, it will not control the climbing equipment to run, that is, the climbing equipment is in a stopped state.

[0040] like Figure 6 As shown in (b1), when button 111 is pressed for the first time, button 111 drives guide 112 to approach handrail 2 and presses the first elastic member 113. The telescopic end of trigger component 12 is in the first position T1 on guide 112, so that trigger component 12 swings toward one side of handrail 2 under the drive of guide 112. Trigger component 12 retracts from the initial length to the first length and triggers micro switch 13, which controls the start-up of the entire climbing device.

[0041] like Figure 6 As shown in (a1), when the button 111 is released from its first press, the first elastic member 113 drives the guide member 112 to move away from the handrail 2. The telescopic end of the trigger component 12 is in the first position T1 on the guide member 112, so that the trigger component 12 swings away from the handrail 2 under the drive of the guide member 112. The trigger component 12 returns to its initial length from the first length and releases the trigger micro switch 13. The micro switch 13 controls the entire climbing device to stop operating.

[0042] like Figure 7 As shown in (a2), when button 111 is pressed a second time after being pressed the first time, that is, when button 111 is in the state of... Figure 6 In the state shown in (b1), when pressed a second time, button 111 moves guide 112 closer to handrail 2 and presses the first elastic member 113. The telescopic end of trigger component 12 moves from the first position T1 on guide 112 to the second position T2. ​​Trigger component 12 swings toward the side away from handrail 2 to extend from the first length to the second length. Trigger component 12 releases trigger micro switch 13, and micro switch 13 controls the entire climbing device to stop operating.

[0043] like Figure 7 As shown in (b2), when the button 111 is released from its second press, the first elastic member 113 drives the guide member 112 to move relative to the trigger component 12, so that the telescopic end of the trigger component 12 returns from the second position T2 on the guide member 112 to the first position T1, the trigger component 12 returns from its second length to its initial length, and the trigger micro switch 13 is released. The second length is greater than the initial length, and the initial length is greater than the first length.

[0044] The three-position switch 1 shown in this utility model comprises a pressing component 11, a triggering component 12, and a micro switch 13. The pressing component 11 includes a button 111, a guide 112, and a first elastic element 113. Under the control of the button 111 and the first elastic element 113, the guide 112 guides the triggering component 12 to rotate relative to the handrail 2. Based on the retractable nature of the triggering component 12, when the operator holds the handrail 2 to apply the first press operation to the button 111, it is ensured that the triggering component 12 is in the first position relative to the guide 112 and rotates towards one side of the handrail 2, thereby triggering the micro switch 13 to control the climbing equipment. When the climbing equipment is in operation, and an emergency stop is required, the operator can release the handrail 2 to release the first press of button 111, ensuring that the trigger component 12 rotates away from the handrail 2 and returns to its initial position under the drive of the guide 112, thereby releasing the trigger of micro switch 13. In an emergency, the operator can also press button 111 a second time to ensure that the trigger component 12 is guided by the guide 112 to rotate away from the handrail 2 and switch from the first position to the second position relative to the guide 112, thereby releasing the trigger of micro switch 13 and achieving the same purpose of stopping the climbing equipment.

[0045] As can be seen from the above, the three-position switch 1 described in this utility model will control the climbing equipment to stop immediately regardless of whether the operator chooses to grip the handrail 2 or release the handrail 2 during the operation of the climbing equipment, thus ensuring that the operator can safely and reliably perform emergency stop control on the climbing equipment.

[0046] At the same time, compared with the existing button 111 switch that only controls the stopping of the climbing equipment by releasing it, this three-position switch 1 has a simple structure, low cost, and improves the safety factor for operators to operate the climbing equipment.

[0047] In some embodiments, such as Figure 1 and Figure 5 As shown, the triggering component 12 includes: a rotating member 121, a triggering member 122, and a second elastic member 123; The rotating member 121 is rotatably disposed on the handrail 2, and the trigger member 122 is movably disposed on the rotating member 121 along the extension direction of the rotating member 121. The end of the trigger member 122 away from the rotating member 121 slides in contact with the guide member 112. The trigger member 122 is used to trigger the micro switch 13. The second elastic member 123 is disposed between the rotating member 121 and the trigger member 122.

[0048] It is understood that both the rotating member 121 and the trigger member 122 are roughly strip-shaped. The first end of the rotating member 121 is rotatably connected to the handrail 2 through the first hinge shaft 101, and the second end of the rotating member 121 is set on the side facing the guide member 112.

[0049] Meanwhile, along the extension direction of the rotating member 121, the trigger member 122 and the rotating member 121 are slidably engaged. The trigger member 122 is provided with a trigger head 1221 at the end away from the rotating member 121. The trigger head 1221 is in slidable contact with the guide structure on the guide member 112. The trigger head 1221 can be a roller or pin rotatably disposed at the end of the trigger member 122, and there is no specific limitation on this.

[0050] The second elastic element 123 can be a spring. The first end of the second elastic element 123 abuts against the rotating element 121, and the second end of the second elastic element 123 abuts against the trigger element 122.

[0051] Thus, when the guide 112 moves relative to the armrest 2 under the control of the button 111 and the first elastic element 113, the guide 112 will use the guide structure to control the trigger component 12 to rotate relative to the armrest 2. During this process, the trigger component 12 will adaptively switch lengths as the position of the guide 112 switches, and trigger the micro switch 13.

[0052] In some embodiments, such as Figure 5 As shown, in order to ensure that the trigger assembly 12 can stably switch between extension and retraction, the rotating member 121 is provided with a guide groove 1211, and the opening of the guide groove 1211 is provided on the side facing the guide member 112; at least part of the trigger member 122 is movably inserted into the guide groove 1211, and the second elastic member 123 is provided in the guide groove 1211 and abuts against the bottom of the guide groove 1211 and the trigger member 122.

[0053] Furthermore, the inner wall of the guide groove 1211 is provided with a first guide portion 1212, and the side wall of the trigger member 122 is provided with a second guide portion 1222. The first guide portion 1212 and the second guide portion 1222 slide in cooperation along the moving direction of the trigger member 122.

[0054] It is understood that the first guide portion 1212 can be a guide rib provided on the inner wall of the guide groove 1211, and the second guide portion 1222 can be a guide groove provided on the side wall of the trigger member 122. The guide rib is adapted to the guide groove and is slidably provided in the guide groove.

[0055] In practical applications, in order to further ensure that the trigger component 12 can stably switch between extension and retraction, multiple first guide parts 1212 and multiple second guide parts 1222 can be provided, with multiple first guide parts 1212 and multiple second guide parts 1222 being arranged one-to-one.

[0056] For example, such as Figure 5As shown, the inner wall of the guide groove 1211 is provided with two first guide portions 1212, and the side wall of the trigger member 122 is provided with two second guide portions 1222. One of the first guide portions 1212 is located on the left inner wall of the guide groove 1211 and slides in cooperation with the second guide portion 1222 located on the left side wall of the trigger member 122. The other first guide portion 1212 is located on the right inner wall of the guide groove 1211 and slides in cooperation with the second guide portion 1222 located on the right side wall of the trigger member 122.

[0057] For example, such as Figure 5 As shown, a positioning groove can be provided at the end of the trigger member 122 facing the rotating member 121. The positioning groove is located between the left and right walls of the trigger member 122. The first end of the second elastic member 123 abuts against the bottom of the guide groove 1211, and the second end of the second elastic member 123 abuts against the bottom of the positioning groove. This design is conducive to the second elastic member 123 stably extending and retracting between the rotating member 121 and the trigger member 122.

[0058] In some embodiments, such as Figure 5 As shown, the trigger component 12 also includes an angle limiting structure 124, which is configured to be disposed between the rotating member 121 and the armrest 2, for limiting the rotation angle of the rotating member 121 relative to the armrest 2 when the button 111 is pressed once.

[0059] Understandably, by setting the angle limiting structure 124, when the operator presses the button 111 for the first time, it can not only accurately control the rotation angle of the rotating component 121 relative to the armrest 2 to reliably trigger the micro switch 13, but also ensure the operating feel when the operator presses the button 111 for the first time, avoiding excessive pressing force applied by the operator to the button 111, which would cause the triggering component 12 to release the triggering of the micro switch 13 after triggering it.

[0060] like Figure 1 and Figure 5 As shown, when the first end of the rotating member 121 is rotatably connected to the armrest 2 via the first hinge shaft 101, the angle limiting structure 124 can be set between the middle of the rotating member 121 and the armrest 2. This design facilitates ensuring that when the operator applies a second press to the button 111, the guide member 112 guides the end of the trigger member 122 away from the rotating member 121 to move smoothly from the first position to the second position on the guide member 112, so as to release the triggering of the micro switch 13.

[0061] In some embodiments, such as Figure 5As shown, the angle limiting structure 124 includes: a limiting rod 1241 and a strip hole 1242; the limiting rod 1241 is configured to be disposed on the handrail 2, the strip hole 1242 is disposed on the rotating member 121, the limiting rod 1241 passes through the strip hole 1242, the strip hole 1242 can be an oval hole or a rectangular hole, and there is no specific limitation on this.

[0062] Specifically, when the button 111 is not pressed, the limiting rod 1241 is limited to the first end of the strip hole 1242; when the button 111 is pressed, the limiting rod 1241 is limited to the second end of the strip hole 1242.

[0063] It is understandable that the length of the extension of the strip hole 1242 determines the range of the rotation angle of the rotating member 121 relative to the handrail 2. For example, the angle limiting structure 124 can limit the rotation angle of the rotating member 121 relative to the handrail 2 to 5° to 10°.

[0064] When button 111 is not pressed, the limiting rod 1241 limits the first end of the strip hole 1242, ensuring that the position of the entire trigger assembly 12 relative to the micro switch 13 remains unchanged. At this time, the trigger element 122 of the trigger assembly 12 is connected to the brake of the micro switch 13, but the micro switch 13 will not be triggered to switch the state.

[0065] When button 111 is pressed once, button 111 moves guide 112 closer to armrest 2. Since trigger 122 of trigger assembly 12 is maintained at the first position T1 on guide 112, the entire trigger assembly 12 will swing toward one side of armrest 2 under the action of guide 112. When limit rod 1241 abuts against the second end of strip hole 1242, trigger 122 of trigger assembly 12 triggers micro switch 13 to switch state. At this time, due to the abutting cooperation between limit rod 1241 and the second end of strip hole 1242, the operator will find it difficult to continue pressing button 111 without a large pressing force.

[0066] In some embodiments, such as Figure 3 and Figure 4 As shown, the guide member 112 is provided with a slot 1121 and a guide slope 1122. The first groove wall of the slot 1121 is connected to the guide slope 1122 and is configured to be set at an angle. Before and after the button 111 is pressed once, the end of the trigger component 12 facing the guide 112 is limited in the slot 1121 so that the trigger component 12 is in the first position relative to the guide 112; When button 111 is pressed twice in sequence, the end of trigger component 12 facing guide member 112 can cross the first groove wall of slot 1121 to reach guide slope 1122, so as to realize that trigger component 12 moves from the first position to the second position relative to guide member 112.

[0067] It is understandable that the slot 1121 and the guide ramp 1122 are located on the side of the guide member 112 facing the trigger component 12. When the operator presses the button 111 for the first time, or when the operator presses the release button 111 for the first time, the end of the trigger component 12 facing the guide member 112 is locked in the slot 1121. This design can ensure that the trigger component 12 remains in the first position relative to the guide member 112 before and after the button 111 is pressed once, so that after the operator controls the climbing equipment to stop in an emergency by releasing the handrail 2, he can re-trigger the micro switch 13 by holding the handle 21, and then the micro switch 13 controls the climbing equipment to start running.

[0068] Meanwhile, the guide ramp 1122 on the guide member 112 can be set on the side of the slot 1121 away from the first elastic member 113. Considering that after the operator presses the button 111 for the first time, the angle limiting structure 124 controls the rotating member 121 to remain in the same position relative to the micro switch 13. When the operator presses the button 111 for the second time, the button 111 drives the guide member 112 to move towards the side closer to the armrest 2. This causes the end of the trigger member 122 of the trigger assembly 12 to cross the first groove wall of the slot 1121 to disengage from the slot 1121. The end of the trigger member 122 will move onto the guide ramp 1122 under the elastic force of the second elastic member 123, realizing the movement of the trigger assembly 12 relative to the guide member 112 from the first position to the second position. Among them, according to Figure 7 As can be seen from (a2), when the limiting rod 1241 abuts against the first end of the strip hole 1242, the end of the trigger member 122 will stop sliding on the guide slope 1122. At this time, the trigger assembly 12 is in the second position relative to the guide member 112.

[0069] In some embodiments, such as Figure 7 As can be seen from (b2), when the button 111 is pressed for the second time, the first elastic element 113 is in a compressed state. When the button 111 is released from the second press, the first elastic element 113 is used to drive the guide 112 to move the button 111 away from the armrest 2. The guide slope 1122 is used to guide the trigger component 12 to return from the second position to the first position relative to the guide 112. At this time, the end of the trigger component 12 facing the guide 112 is locked in the slot 1121, and the trigger component 12 will not trigger the micro switch 13.

[0070] In some embodiments, such as Figure 1 and Figure 4 As shown, the card slot 1121 is configured with the slot opening facing downwards, and the angle between the guide slope 1122 and the vertical plane is greater than the angle between the first wall of the card slot 1121 and the vertical plane.

[0071] It is understandable that by setting the inclination angle of the guide ramp 1122 and the first groove wall of the slot 1121 relative to the vertical plane, it is not only ensured that when the button 111 is pressed for the second time, the end of the trigger component 12 facing the guide member 112 can cross the first groove wall of the slot 1121 to reach the guide ramp 1122, but also ensured that when the release button 111 is pressed for the second time, the end of the trigger component 12 facing the guide member 112 can also move sequentially along the guide ramp 1122 and the first groove wall of the slot 1121 into the slot 1121.

[0072] In some embodiments, such as Figure 4 As shown, the angle α between the guide slope 1122 and the vertical plane can be 45° to 75°, for example, the angle α between the guide slope 1122 and the vertical plane can be 45°, 60°, 70°, 75° and other suitable angles; the angle β between the first groove wall of the slot 1121 and the vertical plane can be 10° to 25°, for example, the angle β between the first groove wall of the slot 1121 and the vertical plane can be 10°, 15°, 20°, 25° and other suitable angles.

[0073] The larger the angle α between the guide slope 1122 and the vertical plane, the more beneficial it is to reduce the extension stroke of the entire trigger assembly 12 when the button 111 is pressed for the second time, which in turn helps to reduce the design size of the entire three-position switch 1. Furthermore, when the button 111 is released from the second press, a larger angle α also helps the trigger assembly 12 to move sequentially along the guide slope 1122 and the first groove wall of the slot 1121 towards one end of the guide member 112 until it returns to the slot 1121.

[0074] The extension length of the first groove wall of the card slot 1121 is configured to be less than the extension length of the guide slope 1122, which helps to reduce the resistance of the end of the trigger component 12 facing the guide member 112 across the first groove wall of the card slot 1121, so that the end of the trigger component 12 facing the guide member 112 can smoothly cross the first groove wall of the card slot 1121 to reach the guide slope 1122.

[0075] In some embodiments, when the operator presses button 111 for the first time, in order to prevent the end of trigger component 12 facing guide 112 from disengaging from the second groove wall of groove 1121, the extension length of the second groove wall of groove 1121 may be set to be greater than the extension length of the first groove wall of groove 1121.

[0076] The bottom of the card slot 1121 is configured to be horizontal. The first and second walls of the card slot 1121 are both set at obtuse angles relative to the bottom of the card slot 1121. The angle between the first wall of the card slot 1121 and the bottom of the card slot 1121 can be the same or different from the angle between the second wall of the card slot 1121 and the bottom of the card slot 1121. No specific limitation is made in this regard.

[0077] In some embodiments, such as Figure 1 and Figure 2 As shown, at least a portion of the buttons 111 are configured to be movably confined within the mounting groove 201 of the armrest 2; a guide 112 is disposed on the side of the buttons 111 facing the bottom of the mounting groove 201, and a first elastic member 113 abuts against the guide 112 and the bottom of the mounting groove 201; a trigger assembly 12 is rotatably disposed within the mounting groove 201, and a micro switch 13 is located within the mounting groove 201 and is disposed close to the bottom of the mounting groove 201.

[0078] It is understandable that, such as Figure 1 and Figure 8 As shown, the mounting groove 201 is formed on the handle 21 of the armrest 2. The handle 21 includes a first housing 211 and a second housing 212. The first housing 211 and the second housing 212 are detachably connected. The mounting groove 201 is assembled on the first housing 211 and the second housing 212.

[0079] The end of button 111 facing the armrest 2 is disposed within the mounting groove 201, and a limiting edge is provided along the circumference of button 111. The limiting edge of button 111 abuts against the groove opening of mounting groove 201 to prevent button 111 from detaching from mounting groove 201. Button 111 can be configured to be movably disposed along a direction perpendicular to the bottom of mounting groove 201, or it can be rotatably disposed relative to mounting groove 201; there is no specific limitation on this.

[0080] In some embodiments, such as Figure 1 As shown, the first end of button 111 is rotatably connected to the mounting groove 201. For example, the first end of button 111 is rotatably connected to the mounting groove 201 through the second hinge shaft 102. The guide 112 is provided at the second end of button 111. At least part of button 111 is exposed outside the mounting groove 201. This design makes it convenient for the operator to press button 111 when holding handle 21, so as to reliably control the three-position switch 1 to switch states.

[0081] In the second aspect, such as Figure 8 As shown, this utility model embodiment also provides a climbing device, including: a handrail 2 and a three-position switch 1 as described above disposed on the handrail 2; The micro switch 13 is configured to control the climbing device to stop operating when not triggered, and to control the climbing device to start operating when triggered.

[0082] It is understood that the climbing device in this embodiment relates to a high-altitude climbing device installed on a wind turbine tower, which uses a motor to pull a steel wire rope as a drive device. At the same time, the handrail 2 of the climbing device is usually configured to be vertically arranged, the three-position switch 1 is located on the handle 21 at the upper end of the handrail 2, and the lower end of the handrail 2 is configured to be connected to the main structure of the climbing device.

[0083] Since the climbing device includes a three-position switch 1, and the specific structure of the three-position switch 1 is as described in the above embodiments, the climbing device of this embodiment includes all the technical solutions of the above embodiments. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiments, which will not be described in detail here.

[0084] 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. A three-position switch, used in the handrail of climbing equipment, characterized in that, include: The pressing component includes a button, a guide, and a first elastic member. The button is configured to be movably disposed on the armrest, the guide is connected to the button, and the first elastic member is disposed between the guide and the armrest. A trigger component is configured to be retractable and rotatably disposed on the armrest, the trigger component being in sliding contact with the guide member, the guide member being used to guide the trigger component to rotate relative to the armrest under the control of the button and the first elastic member; A micro switch is configured to be located on the handrail and disposed opposite to the triggering component; The trigger component is configured to be in a first position relative to the guide before and after the button is pressed once, and to move from the first position to a second position relative to the guide when the button is pressed twice in sequence; When the trigger component is in the first position, the trigger component can switch between an initial length and a first length under the drive of the guide. The trigger component will not trigger the micro switch when it is in the initial length, but will trigger the micro switch when it is in the first length. When the trigger component is in the second position, the trigger component is in the second length, and the trigger component will not trigger the micro switch when it is in the second length.

2. The three-position switch according to claim 1, characterized in that, The triggering component includes: A rotating element is configured to be rotatably disposed on the handrail; A trigger element is movably disposed on the rotating member along the extending direction of the rotating member, and the end of the trigger element away from the rotating member slides in contact with the guide element. The trigger element is used to trigger the micro switch. The second elastic element is disposed between the rotating element and the triggering element.

3. The three-position switch according to claim 2, characterized in that, The rotating component is provided with a guide groove, and the opening of the guide groove is positioned facing one side of the guide component; At least a portion of the trigger is movably inserted into the guide groove, and the second elastic member is disposed within the guide groove and abuts against the bottom of the guide groove between the trigger and the trigger.

4. The three-position switch according to claim 3, characterized in that, The inner wall of the guide groove is provided with a first guide portion, and the side wall of the trigger is provided with a second guide portion. The first guide portion and the second guide portion slide in cooperation along the moving direction of the trigger.

5. The three-position switch according to claim 2, characterized in that, The triggering component also includes: An angle limiting structure is configured to be disposed between the rotating member and the armrest for limiting the rotation angle of the rotating member relative to the armrest when the button is pressed once.

6. The three-position switch according to claim 5, characterized in that, The angle limiting structure includes: A limit rod is configured to be installed on the handrail; A strip-shaped hole is provided in the rotating component, and the limiting rod passes through the strip-shaped hole; When the button is not pressed, the limiting rod is located at the first end of the strip hole; when the button is pressed, the limiting rod is located at the second end of the strip hole.

7. The three-position switch according to any one of claims 1 to 6, characterized in that, The guide member is provided with a slot and a guide slope, the first wall of the slot is connected to the guide slope and is configured to be at an angle; Before and after the button is pressed once, one end of the trigger component facing the guide is defined in the slot, so that the trigger component is in a first position relative to the guide. When the button is pressed twice in sequence, the end of the trigger component facing the guide can cross the first groove wall of the slot to reach the guide slope, so as to move the trigger component relative to the guide from the first position to the second position.

8. The three-position switch according to claim 7, characterized in that, When the button is released from a second press, the first elastic element drives the guide to move the button away from the armrest, and the guide ramp guides the trigger component to return to the first position relative to the guide.

9. The three-position switch according to claim 7, characterized in that, The card slot is configured with the slot opening facing downwards, and the angle between the guide slope and the vertical plane is greater than the angle between the first wall of the card slot and the vertical plane.

10. The three-position switch according to any one of claims 1 to 6, characterized in that, At least some of the buttons are configured to be movably confined within the mounting slot of the armrest; The guide is disposed on the side of the button facing the bottom of the mounting groove, and the first elastic member abuts between the guide and the bottom of the mounting groove; the trigger component is rotatably disposed in the mounting groove, and the micro switch is located in the mounting groove and is disposed close to the bottom of the mounting groove.

11. The three-position switch according to claim 10, characterized in that, The first end of the button is rotatably connected to the mounting groove, the guide is disposed at the second end of the button, and at least part of the button is exposed outside the mounting groove.

12. A climbing device, characterized in that, include: The handrail and the three-position switch disposed on the handrail as described in any one of claims 1 to 11; The microswitch is configured to stop the climbing device when it is not triggered, and to start the climbing device when it is triggered.

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