Integrated safety gear action system

Abstract

The invention relates to an integrated safety tongs action system, which is applied to an elevator car and comprises a roller type guide shoe, at least three rollers, two rollers are oppositely arranged and are configured as brake mechanisms of safety tongs; at least one other roller is configured as a detection mechanism for the speed of the lift car; the transmission mechanism is connected with the roller of the detection mechanism and the roller of the brake mechanism; when the rolling wheels of the detection mechanism detect that the elevator car is overspeed, the two rolling wheels of the braking mechanism make contact with the elevator guide rails through the action of the transmission mechanism to form braking fit. According to the integrated safety gear action system designed by the invention, traditional dispersed components such as a speed governor, a safety gear and a roller guide shoe are highly integrated in an integrated module, so that the number of parts is reduced, a transmission path is simplified, the response speed of the system is remarkably improved, more reliable and more accurate safety gear action is ensured, and the safety gear action efficiency is improved. And a firmer guarantee is provided for safe operation of the elevator.

Description

Technical Field

[0001] The invention relates to the technical field of vertical elevators, in particular to an integrated safety clamp actuation system. Background Art

[0002] In the existing technology, the elevator safety clamp system is an indispensable key component for the safe operation of the elevator. Its main responsibility is to quickly and reliably clamp the elevator guide rails to prevent the car from continuing to slide down when abnormal conditions such as overspeed and rope breakage occur during the operation of the elevator, thereby maximizing the personal safety of passengers. On the other hand, the guide shoe is a guiding device for the elevator car or counterweight to run along the guide rail. It usually adopts a slider or roller structure to reduce friction and ensure the smooth operation of the car. However, the traditional safety clamp system and guide shoe are relatively independent in structure and lack an effective coordination mechanism.

[0003] Although some prior arts attempt to combine the functions of guide shoes and safety clamps, such as the solution disclosed in Chinese patent announcement number CN104787640B (announcement date: April 5, 2017, invention name: roller guide shoe triggered elevator speed limiter), the solution includes a safety clamp, a roller guide shoe device, a roller speed limit triggering device and a pull rod mechanism. The solution uses the rotation of the roller in the roller guide shoe device to drive the permanent magnet generator to generate electricity, generate electrical energy to drive the electromagnetic push rod, and trigger the safety clamp to clamp the guide rail through the pull rod mechanism. Although the solution attempts to link the movement of the guide shoe with the triggering of the safety clamp, it is still two relatively independent systems, and the roller and the safety clamp in its roller guide shoe are essentially still two independent components, which occupy a large space, have a complex overall structure, and are also limited in response speed. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an integrated safety clamp actuation system which integrates the safety clamp function into the roller guide shoe, realizes speed detection and braking through the roller, simplifies the structure, and improves the reliability and response speed of the elevator safety clamp system.

[0005] In order to achieve the above-mentioned object, the integrated safety clamp actuation system designed by the present invention is applied to an elevator car, comprising:

[0006] A roller guide shoe has at least three rollers, two of which are arranged opposite to each other and configured as a braking mechanism of the safety clamp; at least one other roller is configured as a detection mechanism for the car speed;

[0007] A transmission mechanism, connecting the roller of the detection mechanism and the roller of the braking mechanism;

[0008] When the roller of the detection mechanism detects that the car is overspeeding, the two rollers of the braking mechanism are actuated by the transmission mechanism to contact the elevator guide rails to form a braking match.

[0009] Preferably, the two rollers of the braking mechanism each include: a braking wheel; and

[0010] A linkage mechanism is provided, wherein the linkage mechanism is connected to the brake wheel and maintains the brake wheel in a first position, and the linkage mechanism is configured to drive the brake wheel from the first position to a second position in response to the action of the transmission mechanism; wherein the brake wheel is used to guide the elevator guide rail when it is in the first position, and is used to form a braking fit with the elevator guide rail when it is in the second position.

[0011] Preferably, rubber wheels are provided on both axial sides of the brake wheel, the diameter of the rubber wheels is larger than the diameter of the brake wheel and fits with the surface of the brake wheel, and is used to guide the elevator guide rail; the brake wheel has a polygonal radial cross-section, and is used to contact the elevator guide rail to provide braking force when the rubber wheel is compressed.

[0012] Preferably, the linkage mechanism comprises:

[0013] A first base, on which a guide groove for limiting the movement path of the brake wheel is formed, and the brake wheel is rotatably mounted in the guide groove through a first shaft;

[0014] A second base having a groove formed thereon; and

[0015] A mounting block, which is connected to the second base via a compression spring disposed on the bottom surface of the groove, and a portion of the mounting block exposed outside the groove is connected to the first shaft via a mounting rod;

[0016] Wherein, the second base is provided with a positioning pin extending into the groove to lock the mounting block so that it remains at a predetermined position in the groove; when the positioning pin is connected to the mounting block, the mounting block drives the first shaft to be pressed against the lowest position of the guide groove through the mounting rod; when the transmission mechanism is actuated, the positioning pin is driven to disengage from the mounting block to release its lock.

[0017] Preferably, the roller of the detection mechanism comprises a wheel body, a first spring arranged on the wheel body and a slider connected to the first spring; the slider stretches the first spring to move outward under the action of centrifugal force to trigger the transmission mechanism.

[0018] Preferably, it further comprises a clamping device, which applies force to the wheel body so that the wheel body is pressed against the elevator guide rail.

[0019] Preferably, the clamping device includes a first bracket and a second bracket arranged opposite to the first bracket, the first bracket is provided with a plurality of guide rods passing through the second bracket, and one end of the guide rod passing through the second bracket is provided with a second spring for applying force to the second bracket to make the second bracket close to the first bracket; the wheel body is rotatably mounted on the second bracket through a second axis.

[0020] Preferably, the transmission mechanism comprises a trigger block and a connecting rod, and the trigger block is pressed down in response to the movement of the slider to drive the connecting rod to drive the two rollers of the brake mechanism to contact the elevator guide rail to form a braking fit.

[0021] Preferably, an electromagnetic resetting device is provided on the second base for resetting the mounting block after the operation.

[0022] Preferably, it also includes an electrical switch, which is used to trigger the traction machine brake when the roller of the detection mechanism detects that the car is overspeeding, and the electrical switch is actuated before the transmission mechanism.

[0023] The integrated safety clamp actuation system designed by the present invention significantly simplifies the system structure by highly integrating traditional dispersed components such as speed limiters, safety clamps, roller guide shoes, etc. into an integrated module, which not only greatly reduces the manufacturing cost and the difficulty of later maintenance, but also avoids the potential failure risks brought about by the traditional structure due to the numerous components and complex connections. The system directly uses the roller of the roller guide shoe as a key component of the speed detection and braking mechanism, thereby completely abandoning the wire rope linkage structure in the traditional system that is prone to shaking, easy to wear, and has high maintenance costs. This integrated design not only reduces the number of components, but also simplifies the transmission path, significantly improves the response speed of the system, and ensures more reliable and accurate safety clamp action, providing a more solid guarantee for the safe operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the integrated safety clamp actuation system provided in an embodiment of the present application.

[0025] Figure 2 yes Figure 1 Top view of the .

[0026] Figure 3 yes Figure 2 Sectional view at AA.

[0027] Figure 4 It is a schematic diagram of the structure of the detection mechanism provided in the embodiment of the present application.

[0028] Figure 5 It is a schematic diagram of the linkage mechanism structure provided in an embodiment of the present application.

[0029] Figure 6 This is a schematic diagram of the wheel action trigger block structure provided in the embodiment of the present application. Figure 1 .

[0030] Figure 7 This is a schematic diagram of the wheel action trigger block structure provided in the embodiment of the present application. Figure 2 .

[0031] Figure 8 It is a braking schematic diagram of the braking mechanism provided in an embodiment of the present application.

[0032] Fig. 9 This is a schematic diagram of the installation of an electrical switch provided in an embodiment of the present application.

[0033] Among them: roller guide shoe 10, brake mechanism 20, brake wheel 21, linkage mechanism 22, first base 221, guide groove 222, first shaft 223, second base 224, groove 225, mounting block 226, compression spring 227, mounting rod 228, positioning pin 229, rubber wheel 23, detection mechanism 30, wheel body 31, first spring 32, slider 33, trigger part 331, spoke groove 34, slide groove 35, transmission mechanism 40, trigger block 41, connecting rod 42, empty groove 43, seat body 44, wedge block 45, inclined surface 46, clamping device 50, first bracket 51, second bracket 52, guide rod 53, second spring 54, second shaft 55, electrical switch 60. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] like Figures 1 to 9 As shown, the integrated safety clamp actuation system described in this embodiment is applied to an elevator car, and mainly includes a roller guide shoe 10, a braking mechanism 20, a detection mechanism 30 and a transmission mechanism 40.

[0036] Specifically, the roller guide shoe 10 is installed on the elevator car, and is used to guide the elevator car to run smoothly along the elevator guide rail. The roller guide shoe 10 has at least three rollers, two of which are arranged opposite to each other and configured as the braking mechanism 20 of the safety clamp; at least one other roller is configured as the car speed detection mechanism 30. In this embodiment, the roller guide shoe 10 is provided with three rollers, and the three rollers are distributed in a triangular shape. When the elevator is operating normally, the three rollers are in contact with the elevator guide rail and roll, and together provide a smooth guide for the elevator car.

[0037] The transmission mechanism 40 connects the roller of the detection mechanism 30 and the roller of the braking mechanism 20; wherein, when the roller of the detection mechanism 30 detects that the car is overspeeding, the transmission mechanism 40 actuates the two rollers of the braking mechanism 20 to contact the elevator guide rails to form a braking cooperation, thereby achieving rapid stopping.

[0038] When implementing it, Figure 1 , Figure 2 , Figure 8 As shown, the two rollers of the brake mechanism 20 configured as the safety clamp, in addition to playing a guiding role, are also on standby at any time when the elevator is running normally. Once the overspeed trigger signal transmitted by the transmission mechanism 40 is received, it will immediately come into close contact with the elevator guide rail to generate braking force, thereby realizing the braking function of the safety clamp and ensuring that the elevator stops smoothly; and the roller configured as the car detection mechanism 30, in the process of rolling in contact with the elevator guide rail, monitors the running speed of the elevator in real time. It can directly and sensitively sense the running state of the elevator car. During normal operation, it keeps in contact with the elevator guide rail only as speed monitoring. Once it detects that the elevator speed exceeds the preset threshold, the roller will immediately trigger the transmission mechanism 40, and then start the brake mechanism 20, even if the two rollers of the brake mechanism 20 are in close contact with the elevator guide rail, generating braking force to form a fast-response braking mechanism. This highly integrated design makes the action process of the safety clamp faster and more reliable, providing a more solid safety guarantee for the operation of the elevator.

[0039] In some embodiments, Figure 2 , Figure 8 As shown, the two rollers of the brake mechanism 20 include: a brake wheel 21; and a linkage mechanism 22, wherein the linkage mechanism 22 is connected to the brake wheel 21 and keeps it in a first position, and the linkage mechanism 22 is configured to drive the brake wheel 21 from the first position to the second position in response to the action of the transmission mechanism 40; wherein the brake wheel 21 is used to guide the elevator guide rail when it is in the first position, and is used to form a braking fit with the elevator guide rail when it is in the second position.

[0040] In this way, under the normal operation of the elevator, the linkage mechanism 22 keeps the brake wheel 21 in the first position. At this time, the brake wheel 21 maintains a certain distance from the elevator guide rail, but is close to the elevator guide rail. Its function is only to provide a smooth guide for the elevator car to ensure that the elevator car can move smoothly along the guide rail to avoid shaking; and when the elevator is in operation, once the detection mechanism 30 detects that the car is overspeeding, it will immediately trigger the transmission mechanism 40, that is, the transmission mechanism 40 will immediately act after receiving the overspeed and transmit it to the linkage mechanism 22, so that the linkage mechanism 22 immediately drives the brake wheel 21 to move from the first position to the second position. In the second position, the brake wheel 21 will be in close contact with the elevator guide rail to generate a strong friction force, thereby realizing the braking of the elevator car, ensuring the safe operation of the elevator, and at the same time, avoiding the risk of brake failure caused by long-term wear.

[0041] In a specific embodiment, if Figure 3 , Figure 5 , Figure 8 As shown, the linkage mechanism 22 includes a first base 221 , a second base 224 , a mounting block 226 , a compression spring 227 , a mounting rod 228 and a positioning pin 229 .

[0042] Among them, the first base 221 serves as the supporting body of the linkage mechanism 22, and is provided with a guide groove 222. The guide groove 222 is like a track, which accurately controls the movement path of the brake wheel 21. The brake wheel 21 is rotatably installed in the guide groove 222 through the first axis 223, ensuring that it can rotate freely during the guiding process, and can move accurately along the guide groove 222 when switching the braking state.

[0043] A groove 225 for accommodating the mounting block 226 is provided on the second base 224. The groove 225 not only provides an accommodating space for the mounting block 226, but also utilizes the compression spring 227 on the bottom of the groove to provide power for the movement of the mounting block 226. A part of the mounting block 226 is hidden in the groove 225, and the other part is exposed and connected to the first shaft 223 of the brake wheel 21 through the mounting rod 228, so that the movement of the mounting block 226 can directly affect the state of the brake wheel 21.

[0044] Among them, the second base 224 is provided with a positioning pin 229 that extends into the groove 225 and is used to lock the mounting block 226 to keep it at a predetermined position in the groove 225; when the positioning pin 229 is connected to the mounting block 226, the mounting block 226 drives the first shaft 223 to be pressed against the lowest position of the guide groove 222 through the mounting rod 228; when the transmission mechanism 40 is actuated, it drives the positioning pin 229 to disengage from the mounting block 226 to release its lock.

[0045] In this way, the positioning pin 229 can extend into the groove 225 and insert into the mounting block 226, firmly locking it to maintain it at a predetermined position in the groove 225. When the positioning pin 229 is connected to the mounting block 226, the mounting block 226 will drive the first shaft 223 through the mounting rod 228, thereby pressing the brake wheel 21 against the lowest position of the guide groove 222. At this time, the brake wheel 21 is in the first position and only plays a guiding role. When the elevator overspeeds, the transmission mechanism 40 will respond to the detection mechanism 30 to drive the positioning pin 229 to disengage from the mounting block. 226, unlocking the mounting block 226, and once the positioning pin 229 is disengaged, the compression spring 227 will immediately release its stored energy to eject the mounting block 226 from the groove 225. As the mounting block 226 moves rapidly, the mounting rod 228 will push the first shaft 223, thereby driving the brake wheel 21 to move rapidly along the guide groove 222, so that it can instantly switch from the first position to the braking position, that is, switch to the second position to fit closely with the elevator guide rail, generate a strong braking force, and realize the rapid stopping of the elevator.

[0046] In some embodiments, Figure 3 , Figure 8 As shown, rubber wheels 23 are provided on both axial sides of the brake wheel 21. The diameter of the rubber wheel 23 is larger than the diameter of the brake wheel 21 and fits with its surface, so as to guide the elevator guide rail. The brake wheel 21 has a polygonal radial cross-section, so as to contact with the elevator guide rail to provide braking force when the rubber wheel 23 is compressed.

[0047] In this way, the outer ring of the rubber wheel 23 protrudes from the outer ring of the brake wheel 21, so that during normal operation, the rubber wheel 23 can always keep in contact with the elevator guide rail, play the normal function of the roller guide shoe 10, and ensure the smooth operation of the elevator car. When the elevator encounters an emergency such as overspeed, the linkage mechanism 22 drives the brake wheel 21 to switch to the braking position, and the rubber wheel 23 will be compressed. At this time, the brake wheel 21 with a polygonal cross-section will be in close contact with the guide rail. Since the polygonal cross-section provides a larger contact area and friction, the brake wheel 21 can immediately generate a strong braking force, thereby stopping the elevator safely and reliably. This structure combines the guiding characteristics of the rubber wheel 23 and the braking characteristics of the polygonal brake wheel 21, that is, in the actual elevator operation process, when the elevator is running smoothly, the rubber wheel 23 will smoothly contact the elevator guide rail, reducing the noise and vibration during operation, and also protecting the brake wheel 21 from wear; and in emergency braking, the brake wheel 21 will quickly intervene to provide a strong braking force to ensure the safety of the elevator.

[0048] In some embodiments, Figure 1 , Figure 4 , Figure 6As shown, the roller of the detection mechanism 30 includes a wheel body 31, a first spring 32 arranged on the wheel body 31, and a slider 33 connected to the first spring 32; the slider 33 stretches the first spring 32 under the action of centrifugal force to move outward to trigger the transmission mechanism 40. In this way, when the elevator is running normally, the wheel body 31 rolls at a constant speed. At this time, the slider 33 is kept at the upper expected position of the wheel body 31 under the action of the first spring 32. When the elevator is overspeeding, the rotation speed of the wheel body 31 will increase sharply, which will cause the slider 33 to overcome the pulling force of the first spring 32 and move outward due to the action of centrifugal force. When the moving distance of the slider 33 exceeds a predetermined value, it will trigger the transmission mechanism 40, thereby starting the braking mechanism 20.

[0049] In a specific embodiment, if Figure 4 , Figure 6 , Figure 7 As shown, the wheel body 31 is provided with a plurality of spoke grooves 34 for accommodating the first spring 32, and a slide groove 35 extending radially along the wheel body 31 is provided in the spoke groove 34, and a portion of the slider 33 is placed in the slide groove 35, so that the slider 33 can achieve stable and smooth radial movement inside the wheel body 31, and also make the overall structure of the wheel body 31 more compact, and achieve a high degree of functional integration in a limited space.

[0050] In some embodiments, Figure 2 , Figure 4 As shown, it also includes a clamping device 50, which applies force to the wheel body 31 to press the wheel body 31 against the elevator guide rail. The setting of the clamping device 50 can ensure that the wheel body 31 is always in contact with the elevator guide rail, and prevent the wheel body 31 from being out of good contact with the guide rail due to vibration, thereby avoiding malfunction of the detection mechanism 30 and ensuring the safety of the high-speed elevator when running at high speed.

[0051] In this embodiment, if Figure 4 As shown, the clamping device 50 includes a first bracket 51 and a second bracket 52 arranged opposite to the first bracket 51, the first bracket 51 is provided with a plurality of guide rods 53 passing through the second bracket 52, and one end of the guide rod 53 passing through the second bracket 52 is provided with a second spring 54 for applying force to the second bracket 52 to make the second bracket 52 close to the first bracket 51; the wheel body 31 is rotatably mounted on the second bracket 52 through a second shaft 55.

[0052] In specific implementation, the bottom side of the second bracket 52 can be mounted on the first bracket by pivoting. Under the action of the second spring 54, the second bracket 52 will always maintain a tendency to move toward the first bracket 51, so that the wheel body 31 connected thereto can be continuously and stably pressed against the elevator guide rail, thereby achieving effective compression of the wheel body 31. Even if the elevator vibrates slightly during operation, or the guide rail surface is slightly uneven, this flexible pivoting structure cooperates with the elasticity of the second spring 54 to effectively absorb the vibration and the unevenness of the guide rail surface, ensuring that the wheel body 31 and the elevator guide rail always maintain reliable contact, achieving accurate speed detection, and avoiding detection errors caused by poor contact.

[0053] In some embodiments, Figure 1 , Figure 2 , Figure 6 As shown, the transmission mechanism 40 includes a trigger block 41 and a connecting rod 42. The trigger block 41 presses down in response to the action of the slider 33 to drive the connecting rod 42 to drive the two rollers of the brake mechanism 20 to contact the elevator guide rail to form a braking match. In this way, when the elevator is in normal operation, the slider 33 remains in a predetermined position and does not generate any force on the trigger block 41. When the elevator speed exceeds a preset threshold, the slider 33 moves under the action of centrifugal force and presses the trigger block 41 downward. The connecting rod 42 is connected to the trigger block 41. The function of the connecting rod 42 is to convert the downward pressing action of the trigger block 41 into the movement of the rollers of the brake mechanism 20 contacting the elevator guide rail.

[0054] In a specific embodiment, if Figure 6 , Figure 7As shown, a seat body 44 is provided beside the wheel body 31, one end of the connecting rod 42 is slidably arranged on the seat body 44, and the other end is connected to the positioning pin 229, and a wedge block 45 is provided at one end of the connecting rod 42 connected to the seat body 44, and a slope 46 matching the wedge block 45 is provided at the bottom of the trigger block 41. In this embodiment, part of the slider 33 protrudes from the wheel body 31 to form a trigger portion 331, and a hollow groove 43 matching the trigger portion 331 is opened on the side of the trigger block 41 facing the wheel body 31. With this structure, when the elevator is operating normally, the trigger portion 331 maintains contact with the hollow groove 43. Separated state; when the elevator speed exceeds the preset threshold, the slider 33 will move radially under the action of centrifugal force, and the trigger part 331 will be accurately inserted into the empty slot 43 on its moving path. After the trigger part 331 is inserted into the empty slot 43, the movement of the slider 33 will further press down the trigger block 41, and the inclined surface 46 designed at the bottom of the trigger block 41 will interact with the wedge block 45 of the connecting rod 42, thereby forcing the connecting rod 42 to move, and finally pull the positioning pin 229 out of the mounting block 226, unlocking it, triggering the action of the brake mechanism 20, and realizing the rapid stopping of the elevator. At the same time, in order to ensure that the trigger block 41 and the connecting rod 42 remain stable in the non-triggered state, springs that limit their positions are respectively set on the trigger block 41 and the connecting rod 42 to ensure that both can automatically reset after being triggered, thereby ensuring the safety and reliability of the system.

[0055] In some embodiments, an electromagnetic reset device is provided on the second base 224 to reset the mounting block 226 after the operation. In this way, after the brake mechanism 20 is triggered, the electromagnetic reset device (e.g., an electromagnet) can receive a signal from a control system or manual operation to quickly pull the mounting block 226 back to the initial position, so that the brake mechanism 20 returns to the standby state, thereby ensuring that the elevator is ready to deal with the next emergency at any time.

[0056] In some embodiments, Figure 7 , Fig. 9 As shown, an electrical switch 60 is also included, and the electrical switch 60 is used to trigger the traction machine brake when the roller of the detection mechanism 30 detects that the car is overspeeding, and the electrical switch 60 is actuated before the transmission mechanism 40. When the roller of the speed detection mechanism 30 detects that the car is overspeeding, it will not only transmit the overspeed signal to the transmission mechanism 40, but also trigger the electrical switch 60 at the same time. After receiving the overspeed signal, the electrical switch 60 will immediately send a braking signal to the traction machine, so that the traction machine brake is quickly activated, and the motor's own braking ability is used to start deceleration, which makes the entire braking process safer and more reliable.

[0057] The integrated safety clamp actuation system provided in the present embodiment significantly simplifies the system structure by highly integrating traditional dispersed components such as speed limiter, safety clamp, roller guide shoe, etc. into an integrated module, which not only greatly reduces the manufacturing cost and difficulty of later maintenance, but also avoids the potential failure risk caused by the traditional structure due to numerous components and complex connections. The system directly uses the roller of the roller guide shoe as a key component of the speed detection and braking mechanism, thereby completely abandoning the wire rope linkage structure in the traditional system that is prone to shaking, easy to wear, and has high maintenance costs. This integrated design not only reduces the number of components, but also simplifies the transmission path, significantly improves the response speed of the system, and ensures more reliable and accurate safety clamp action, providing a more solid guarantee for the safe operation of the elevator.

[0058] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated safety clamp actuation system, applied to an elevator car, characterized in that: include: A roller guide shoe has at least three rollers, two of which are arranged opposite to each other and configured as a braking mechanism of the safety clamp; at least one other roller is configured as a detection mechanism for the car speed; A transmission mechanism, connecting the roller of the detection mechanism and the roller of the braking mechanism; When the roller of the detection mechanism detects that the car is overspeeding, the two rollers of the braking mechanism are actuated by the transmission mechanism to contact the elevator guide rails to form a braking match.

2. The integrated safety clamp actuation system according to claim 1, characterized in that: The two rollers of the braking mechanism each include: a braking wheel; and A linkage mechanism is provided, wherein the linkage mechanism is connected to the brake wheel and maintains the brake wheel in a first position, and the linkage mechanism is configured to drive the brake wheel from the first position to a second position in response to the action of the transmission mechanism; wherein the brake wheel is used to guide the elevator guide rail when it is in the first position, and is used to form a braking fit with the elevator guide rail when it is in the second position.

3. The integrated safety clamp actuation system according to claim 2, characterized in that: Rubber wheels are provided on both axial sides of the brake wheel. The diameter of the rubber wheels is larger than the diameter of the brake wheel and fits with the surface of the brake wheel, so as to guide the elevator guide rail. The brake wheel has a polygonal radial cross-section, so as to contact with the elevator guide rail to provide braking force when the rubber wheel is compressed.

4. The integrated safety clamp actuation system according to claim 3, characterized in that: The linkage mechanism comprises: A first base, on which a guide groove for limiting the movement path of the brake wheel is formed, and the brake wheel is rotatably mounted in the guide groove through a first shaft; A second base having a groove formed thereon; and A mounting block, which is connected to the second base via a compression spring disposed on the bottom surface of the groove, and a portion of the mounting block exposed outside the groove is connected to the first shaft via a mounting rod; Wherein, the second base is provided with a positioning pin extending into the groove to lock the mounting block so that it remains at a predetermined position in the groove; when the positioning pin is connected to the mounting block, the mounting block drives the first shaft to be pressed against the lowest position of the guide groove through the mounting rod; when the transmission mechanism is actuated, the positioning pin is driven to disengage from the mounting block to release its lock.

5. The integrated safety clamp actuation system according to any one of claims 1 to 4, characterized in that: The roller of the detection mechanism includes a wheel body, a first spring arranged on the wheel body and a slider connected to the first spring; the slider stretches the first spring to move outward under the action of centrifugal force to trigger the transmission mechanism.

6. The integrated safety clamp actuation system according to claim 5, characterized in that: It also includes a clamping device, which applies force to the wheel body to press the wheel body against the elevator guide rail.

7. The integrated safety clamp actuation system according to claim 6, characterized in that: The clamping device includes a first bracket and a second bracket arranged opposite to the first bracket, the first bracket is provided with a plurality of guide rods passing through the second bracket, and one end of the guide rod passing through the second bracket is provided with a second spring that applies force to the second bracket to make the second bracket close to the first bracket; the wheel body is rotatably mounted on the second bracket through a second axis.

8. The integrated safety clamp actuation system according to claim 5, characterized in that: The transmission mechanism comprises a trigger block and a connecting rod. The trigger block presses down in response to the movement of the slider to drive the connecting rod to drive the two rollers of the brake mechanism to contact the elevator guide rail to form a braking match.

9. The integrated safety clamp actuation system according to claim 4, characterized in that: The second base is provided with an electromagnetic resetting device for resetting the mounting block after the operation.

10. The integrated safety clamp actuation system according to claim 1, characterized in that: It also includes an electrical switch, which is used to trigger the traction machine brake when the roller of the detection mechanism detects that the car is overspeeding, and the electrical switch is actuated before the transmission mechanism.

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