Multi-purpose explosion-proof elevator safety gear

Abstract

The application discloses a multipurpose explosion-proof elevator safety clamp and belongs to the technical field of elevator safety equipment. The safety clamp comprises two mounting racks, a connecting assembly one, two rotating racks one, two rotating rods one and two rotating racks two. The connecting assembly one comprises two rotating racks one, the two rotating racks one are fixedly connected to the top of the two mounting racks respectively, the two rotating rods one are rotationally connected to the interiors of the two rotating racks one, and one end of the two rotating rods one is fixedly connected with the two rotating racks two respectively. The threaded groove in the sleeve and the threaded rod are threadedly connected, the sleeve and the connecting rod one are movably connected, the rotation of the sleeve drives the threaded rod to axially move relative to the sleeve, the two rotating blocks one and the rotating racks two are driven to angularly deflect around the rotating rod one, the overall spacing of the two mounting racks and the limiting assembly can be flexibly adjusted, the safety clamp can be adapted to the spacing requirements of guide rails of elevators of different specifications, the adaptability of the safety clamp is improved, and the multipurpose property is improved.

Description

Technical Field

[0001] This invention relates to the field of elevator safety equipment technology, and in particular to a multi-purpose explosion-proof elevator safety clamp. Background Technology

[0002] Elevator safety brakes are important safety protection devices for elevators. Their core function is to quickly brake the elevator car in the event of an out-of-control situation such as overspeeding or cable breakage, preventing the car from falling and ensuring the safety of passengers. In some special scenarios, such as chemical industrial parks and oil and gas storage areas where there are flammable and explosive media, higher requirements are placed on the explosion-proof performance, adaptability, and reliability of elevator safety brakes.

[0003] Existing safety clamps often use integrated or rigidly fixed designs for their mounting brackets and spacing adjustment-related connecting components such as linkages and fixing seats. They lack adjustable linkage transmission structures and cannot be flexibly adjusted according to the guide rail spacing of different elevator specifications, thus limiting their applicability and making it difficult to meet the installation needs of various elevator models. Therefore, we propose a multi-purpose explosion-proof elevator safety clamp. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-purpose explosion-proof elevator safety clamp. This multi-purpose explosion-proof elevator safety clamp can solve the problem mentioned above that the lack of an adjustable linkage transmission structure makes it impossible to flexibly adjust the guide rail spacing according to different elevator specifications, thus limiting its application range.

[0005] To solve the above problems, the following technical solutions are provided: Design a multi-purpose explosion-proof elevator safety clamp, including two mounting brackets: A connecting component 1 includes two rotating frames 1, which are respectively fixedly connected to the top of two mounting frames. A rotating rod 1 is rotatably connected inside each of the two rotating frames 1. A rotating frame 2 is fixedly connected to one end of each of the two rotating rods 1. A rotating rod 2 is rotatably connected inside each of the two rotating frames 2. A rotating block 1 is fixedly connected to the side surface of each of the two rotating rods 2. A connecting rod 1 is fixedly connected to one side of one rotating block 1, and a threaded rod is fixedly connected to one side of the other rotating block 1. By setting up the connecting component 1 and the sleeve, and utilizing the threaded groove inside the sleeve and the threaded connection with the threaded rod, as well as the movable connection between the sleeve and the connecting rod 1, rotating the sleeve can drive the threaded rod to move axially relative to the sleeve. This, in turn, causes the rotating blocks 1 and rotating frames 2 on both sides to deflect at an angle around the rotating rod 1, ultimately achieving flexible adjustment of the overall distance between the two mounting frames and the limiting component. This adapts to the guide rail distance requirements of elevators of different specifications, solves the problem of poor adaptability of existing safety clamps, and improves versatility. The limiting component includes two limiting blocks, which are fixedly connected to one side of the mounting frame, and limiting grooves are respectively formed on the side of the two limiting blocks that are close to each other.

[0006] Furthermore, a sleeve is movably connected to the outer side of the connecting rod, and a threaded groove is provided inside the sleeve, the inside of which is threadedly connected to the outer side of the threaded rod.

[0007] Furthermore, the limiting component also includes two sliders, which are slidably connected inside the limiting groove, and wedges are fixedly connected to the sides of the two sliders that are close to each other.

[0008] Furthermore, friction blocks are fixedly connected to the adjacent sides of the two wedges, and a second connecting component is provided on the top of each wedge.

[0009] The above technical solution is successful. The wedge-shaped structure can enhance the contact pressure, and the limiting groove can limit the slider to ensure the movement stability of the wedge and friction block, avoid deviation, ensure the continuous reliability of the braking process, and improve the safety guarantee when the elevator is out of control.

[0010] Furthermore, the connecting component two includes two connecting rods two, and the top of each of the two connecting rods two is fixedly connected to a mounting block one. One side of each of the two mounting blocks one is rotatably connected to a connecting frame one via a hinge, and the mounting rod one is slidably connected inside the connecting frame one.

[0011] Furthermore, a rotating frame three is fixedly connected to the side surface of the rotating rod one, and one side of the rotating frame three is fixedly connected to the other end of the mounting rod one, wherein a mounting block two is fixedly connected to the other end of the rotating rod one.

[0012] The above technical solution is successful. By setting the connecting component two in cooperation with the limiting component, when the elevator is out of control, the change in the traction force of the cable drives the rotating rod one to rotate. Then, through the linkage of the rotating frame three, the mounting rod one, the connecting frame one, the connecting rod two and other components, the slider is pulled down along the limiting groove, which drives the wedge block and the friction block to approach the guide rail and fit tightly.

[0013] Furthermore, a second mounting rod is fixedly connected to one side of the second mounting block, and a second connecting bracket is fixedly connected to one side of the second mounting rod.

[0014] Furthermore, a rotating frame four is fixedly connected to the bottom of the mounting frame, a rotating rod three is rotatably connected inside the rotating frame four, and an auxiliary wheel is fixedly connected to the side surface of the rotating rod three.

[0015] The above technical solution is successful. By setting a rotating frame four, a rotating rod three, and an auxiliary wheel at the bottom of the mounting frame, the auxiliary wheel rolls in close contact with the elevator guide rail during normal elevator operation, transforming traditional sliding friction into rolling friction. This significantly reduces the frictional resistance between the safety clamp and the guide rail, ensuring smooth elevator operation.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This multi-purpose explosion-proof elevator safety clamp, through the setting of a connecting component one and a sleeve, utilizes the threaded groove inside the sleeve to connect with the threaded rod, as well as the movable connection between the sleeve and the connecting rod one. Rotating the sleeve can drive the threaded rod to move axially relative to the sleeve, thereby causing the rotating blocks one and rotating frame two on both sides to deflect at an angle around the rotating rod one. Ultimately, it can flexibly adjust the overall spacing of the two mounting brackets and the limiting component, which can adapt to the guide rail spacing requirements of elevators of different specifications, solve the problem of poor adaptability of existing safety clamps, and improve versatility; 2. This multi-purpose explosion-proof elevator safety clamp, through the cooperation of connecting component two and limiting component, when the elevator is out of control, the change in cable traction force drives rotating rod one to rotate. Then, through the linkage of rotating frame three, mounting rod one, connecting frame one, connecting rod two and other components, the slider is pulled down along the limiting groove, which drives the wedge and friction block to approach and fit tightly against the guide rail. The wedge-shaped structure of the wedge can enhance the fitting pressure, and the limiting groove's limiting effect on the slider ensures the movement stability of the wedge and friction block, avoids deviation, ensures continuous and reliable braking process, and improves the safety guarantee when the elevator is out of control. 3. This multi-purpose explosion-proof elevator safety clamp is equipped with a rotating frame four, a rotating rod three, and an auxiliary wheel at the bottom of the mounting bracket. When the elevator is running normally, the auxiliary wheel rolls in close contact with the elevator guide rail, converting the traditional sliding friction into rolling friction. This significantly reduces the frictional resistance between the safety clamp and the guide rail, ensuring smooth elevator operation and reducing component wear. Combined with the explosion-proof and corrosion-resistant coating on the surface, it further extends the service life of the device and is suitable for explosion-proof and other special environments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point a; Figure 4 This is a three-dimensional structural diagram of the limiting component of the present invention; Figure 5 This is a three-dimensional structural diagram of the connecting component of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0018] In the diagram: 1. Mounting frame; 2. Connecting component one; 201. Rotating frame one; 202. Rotating rod one; 203. Rotating frame two; 204. Rotating rod two; 205. Rotating block one; 206. Connecting rod one; 207. Threaded rod; 3. Sleeve; 4. Threaded groove; 5. Limiting component; 501. Limiting block; 502. Limiting groove; 503. Sliding block; 504. Wedge block; 505. Friction block; 6. Connecting component two; 601. Connecting rod two; 602. Mounting block one; 603. Connecting frame one; 604. Mounting rod one; 605. Rotating frame three; 7. Mounting block two; 8. Mounting rod two; 9. Connecting frame two; 10. Rotating frame four; 11. Rotating rod three; 12. Auxiliary wheel. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 - Figure 6 As shown in the figure, this embodiment provides a multi-purpose explosion-proof elevator safety clamp, which includes two mounting brackets 1: Connection component 1 2 includes two rotating brackets 201, which are fixedly connected to the tops of two mounting brackets 1. Rotating rods 202 are rotatably connected inside the two rotating brackets 201. Rotating brackets 203 are fixedly connected to one end of each of the two rotating rods 202. Rotating rods 204 are rotatably connected inside the two rotating brackets 203. Rotating blocks 205 are fixedly connected to the side surfaces of the two rotating rods 204. A connecting rod 206 is fixedly connected to one side of one rotating block 205, and a threaded rod 207 is fixedly connected to one side of the other rotating block 205. A sleeve 3 is movably connected to the outer side of the connecting rod 206. The sleeve 3 contains... The device has a threaded groove 4, the inside of which is threadedly connected to the outside of the threaded rod 207. The device is fixedly connected to the elevator cable through the connecting frame 2 9, completing the core power connection. To meet the installation spacing requirements of different elevator specifications, the device can be adapted and adjusted by rotating the sleeve 3. Because the threaded groove 4 inside the sleeve 3 is threadedly connected to the threaded rod 207, and the sleeve 3 is movably connected to the connecting rod 1 206, rotating the sleeve 3 will drive the threaded rod 207 to move axially relative to the sleeve 3. This will cause the rotating blocks 1 205 and the rotating frame 2 203 on both sides to deflect at an angle around the rotating rod 1 202, ultimately adjusting the overall spacing of the two mounting frames 1 and the subsequent limiting components 5, ensuring the installation compatibility of the device with the elevator guide rail.

[0021] The limiting component 5 includes two limiting blocks 501, which are fixedly connected to one side of the mounting bracket 1. Limiting grooves 502 are respectively formed on the adjacent sides of the two limiting blocks 501. The limiting component 5 also includes two sliders 503, which are slidably connected inside the limiting grooves 502. Wedges 504 are fixedly connected to the adjacent sides of the two sliders 503, and friction blocks 505 are fixedly connected to the adjacent sides of the two wedges 504. A connecting component is provided on the top of each wedge 504. 26. The displacement of connecting rod 2601 will drive slider 503 in limit assembly 5 to slide down along limit groove 502 on limit block 501. Slider 503 drives wedge block 504 to move down synchronously. Since wedge block 504 adopts wedge structure, it will gradually move towards the elevator guide rail during its downward movement, and finally make friction block 505 on one side of wedge block 504 fit tightly with guide rail. The huge static friction force generated between friction block 505 and guide rail will form braking resistance on elevator car, slowly consume elevator kinetic energy, and realize emergency braking of elevator.

[0022] The connecting component 2 6 includes two connecting rods 2 601. The top of each connecting rod 2 601 is fixedly connected to a mounting block 1 602. One side of each mounting block 1 602 is rotatably connected to a connecting frame 1 603 via a hinge. The interior of the connecting frame 1 603 is slidably connected to a mounting rod 1 604. The side surface of the rotating rod 1 202 is fixedly connected to a rotating frame 3 605. One side of the rotating frame 3 605 is fixedly connected to the other end of the mounting rod 1 604. The other end of one of the rotating rods 1 202 is fixedly connected to a mounting block 2 7. When the rotating frame 3 605 rotates, it will drive the mounting rod 1 604 fixedly connected to it to slide within the connecting frame 1 603. This will then pull the connecting rod 2 601 downward through the mounting block 1 602. The displacement of the connecting rod 2 601 will drive the slider 503 in the limiting component 5 to slide downward along the limiting groove 502 on the limiting block 501. The slider 503 will drive the wedge block 504 to move downward synchronously.

[0023] Mounting block 2 7 is fixedly connected to one side of mounting rod 2 8, and mounting rod 2 8 is fixedly connected to one side of connecting frame 2 9. Mounting frame 1 is fixedly connected to the bottom of rotating frame 1. Rotating rod 3 11 is rotatably connected inside rotating frame 4 10. Auxiliary wheel 12 is fixedly connected to the side surface of rotating rod 3 11. Rotating rod 3 11 inside rotating frame 4 10 at the bottom of mounting frame 1 and auxiliary wheel 12 on the side surface roll in close contact with elevator guide rail, reducing frictional resistance between safety clamp and guide rail, and ensuring smooth elevator operation.

[0024] This embodiment presents a multi-purpose explosion-proof elevator safety clamp. The device establishes a fixed connection with the elevator cable through connecting frame two 9, completing the core power association. To accommodate the installation spacing requirements of different elevator specifications, the rotating sleeve 3 can be used for adaptation and adjustment. Because the threaded groove 4 inside the sleeve 3 is threadedly connected to the threaded rod 207, and the sleeve 3 is movably connected to connecting rod one 206, rotating the sleeve 3 drives the threaded rod 207 to move axially relative to the sleeve 3. This, in turn, causes the rotating blocks one 205 and rotating frame two 203 on both sides to deflect at an angle around rotating rod one 202, ultimately adjusting the overall spacing between the two mounting frames 1 and the subsequent limiting components 5. This ensures the installation compatibility of the device with the elevator guide rail. During normal elevator operation, connecting frame two 9 maintains a stable connection with the elevator cable. Under the traction of the cable, the entire safety clamp moves synchronously with the elevator car. At this time, the rotating frame four 10 at the bottom of the mounting frame 1... The rotating rod 11 and the auxiliary wheel 12 on the side surface roll in close contact with the elevator guide rail, reducing the frictional resistance between the safety clamp and the guide rail and ensuring the smooth operation of the elevator. At the same time, the connecting component 2 is in the initial linkage state, and the rotating frame 201, rotating rod 202, rotating frame 203 and other components rotate without additional force. The slider 503 in the limiting component 5 drives the wedge block 504 and friction block 505 to the upper position in the limiting groove 502. The friction block 505 maintains a safe gap with the elevator guide rail and does not produce braking interference. When the elevator experiences overspeed, cable breakage or other out-of-control situations, the traction force of the cable on the connecting frame 29 disappears or changes abruptly, thereby causing the mounting rod 28 and mounting block 27, which are fixedly connected to the connecting frame 29, to move. The mounting block 27 is fixedly connected to one of the rotating rods 202, and its displacement will drive the rotating rod 202 to rotate in the rotating frame 201.The rotation of the rotating rod 202 drives the rotating frame 605 on the side surface to rotate synchronously. Simultaneously, it drives the rotating block 205 to rotate via the rotating frame 203 and the rotating rod 204. The rotation of the rotating block 205 causes relative displacement between the connecting rod 206 on one side and the threaded rod 207 on the other. Since the threaded rod 207 is threadedly connected to the threaded groove 4 inside the sleeve 3, and the connecting rod 206 is movably connected to the sleeve 3, the relative displacement causes the sleeve 3 to move along the axial direction, further amplifying the linkage stroke. When the rotating frame 605 rotates, it causes the mounting rod 604, which is fixedly connected to it, to slide within the connecting frame 603. This, in turn, pulls the connecting rod 601 downwards via the mounting block 602. The displacement of connecting rod 601 drives slider 503 in limiting assembly 5 to slide downwards along limiting groove 502 on limiting block 501. Slider 503 drives wedge 504 to move downwards synchronously. Because wedge 504 has a wedge-shaped structure, it gradually moves towards the elevator guide rail during its downward movement, eventually causing friction block 505 on one side of wedge 504 to fit tightly against the guide rail. The huge static friction force generated between friction block 505 and the guide rail creates braking resistance on the elevator car, slowly consuming the elevator's kinetic energy and achieving emergency braking to prevent the car from falling rapidly. During braking, the limiting groove 502's limiting effect on slider 503 ensures the stability of the fit between wedge 504 and friction block 505 and the guide rail, ensuring a continuous and reliable braking effect.

[0025] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-purpose explosion-proof elevator safety clamp, characterized in that, Includes two mounting brackets (1): The connecting component 1 (2) includes two rotating frames 1 (201), which are respectively fixedly connected to the top of two mounting frames (1). Rotating rod 1 (202) is rotatably connected inside the two rotating frames 1 (201). Rotating frame 2 (203) is fixedly connected to one end of the two rotating rod 1 (202). Rotating rod 2 (204) is rotatably connected inside the two rotating frames 2 (203). Rotating block 1 (205) is fixedly connected to the side surface of the two rotating rod 2 (204). Connecting rod 1 (206) is fixedly connected to one side of one of the rotating blocks 1 (205), and threaded rod 207 is fixedly connected to one side of the other rotating block 1 (205). The limiting component (5) includes two limiting blocks (501), which are fixedly connected to one side of the mounting bracket (1). Limiting grooves (502) are respectively opened on the side of the two limiting blocks (501) that are close to each other.

2. The multi-purpose explosion-proof elevator safety clamp according to claim 1, characterized in that: A sleeve (3) is movably connected to the outer side of the connecting rod (206). A threaded groove (4) is provided inside the sleeve (3). The inside of the threaded groove (4) is threadedly connected to the outer side of the threaded rod (207).

3. The multi-purpose explosion-proof elevator safety clamp according to claim 2, characterized in that: The limiting component (5) also includes two sliders (503), which are slidably connected inside the limiting groove (502), and wedges (504) are fixedly connected to the sides of the two sliders (503) that are close to each other.

4. The multi-purpose explosion-proof elevator safety clamp according to claim 3, characterized in that: Friction blocks (505) are fixedly connected to the sides of the two wedges (504) that are close to each other, and a connecting component (6) is provided on the top of the wedges (504).

5. The multi-purpose explosion-proof elevator safety clamp according to claim 4, characterized in that: The second connecting component (6) includes two connecting rods (601), and the tops of the two connecting rods (601) are respectively fixedly connected to the first mounting block (602). One side of the two first mounting blocks (602) is rotatably connected to the first connecting frame (603) via a hinge. The first mounting rod (604) is slidably connected inside the first connecting frame (603).

6. The multi-purpose explosion-proof elevator safety clamp according to claim 1, characterized in that: A rotating frame three (605) is fixedly connected to the side surface of the rotating rod one (202). One side of the rotating frame three (605) is fixedly connected to the other end of the mounting rod one (604). One of the rotating rods one (202) is fixedly connected to the other end of the mounting block two (7).

7. A multi-purpose explosion-proof elevator safety clamp according to claim 6, characterized in that: One side of the mounting block 2 (7) is fixedly connected to the mounting rod 2 (8), and one side of the mounting rod 2 (8) is fixedly connected to the connecting frame 2 (9).

8. The multi-purpose explosion-proof elevator safety clamp according to claim 1, characterized in that: The bottom of the mounting bracket (1) is fixedly connected to a rotating frame four (10), and the inside of the rotating frame four (10) is rotatably connected to a rotating rod three (11), and the side surface of the rotating rod three (11) is fixedly connected to an auxiliary wheel (12).

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