An emergency braking device for heavy frames

Abstract

The utility model relates to elevator technical field discloses a kind of emergency braking device for counterweight frame, including counterweight frame and elevator guide rail, the outside of counterweight frame is equipped with guide plate, guide plate is movably sleeved in the outside of elevator guide rail, the top of guide plate is equipped with clamping mechanism and limiting mechanism, clamping mechanism includes two U type round rods one fixedly in the top of guide plate symmetry, left movable plate and right movable plate are movably connected between the two U type round rods one symmetry, left movable plate is between right movable plate and counterweight frame, the side, which is away from counterweight frame, of left movable plate and right movable plate is respectively fixedly connected with support frame and support plate, arc clamping plate is fixedly connected on support frame and support plate;The emergency braking device for counterweight frame of the utility model is convenient for two arc limit plates to clamp before and after elevator guide rail, so that guide plate can be firmly fixed with elevator guide rail, to improve emergency braking effect.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, specifically an emergency braking device for a counterweight frame. Background Technology

[0002] The elevator counterweight frame is part of the elevator weight balancing system. It usually consists of a counterweight frame and counterweight blocks. Its main function is to balance the weight of the car, so that the traction machine only needs to provide the weight difference between the car and the counterweight to drive them up and down. In this way, the energy consumption and wear of the traction machine can be greatly reduced, and the operating efficiency of the elevator can be improved.

[0003] Currently, most emergency braking devices used for counterweight frames rely on two clamps on the safety clamp to hold the guide rail, resulting in a simple structure and thus poor emergency braking performance. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an emergency braking device for counterweight frames, which effectively solves the problem of poor emergency braking effect of current counterweight frames.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an emergency braking device for a counterweight frame, comprising a counterweight frame and an elevator guide rail, wherein a guide plate is provided on the outer side of the counterweight frame, the guide plate is movably sleeved on the outer side of the elevator guide rail, and a clamping mechanism and a limiting mechanism are provided on the top of the guide plate. The clamping mechanism includes two U-shaped round rods symmetrically fixed to the top of the guide plate. A left movable plate and a right movable plate are symmetrically and movably sleeved between the two U-shaped round rods. The left movable plate is located between the right movable plate and the counterweight frame. A support frame and a support plate are respectively fixedly connected to the side of the left movable plate and the right movable plate away from the counterweight frame. An arc-shaped clamping plate is fixedly connected to both the support frame and the support plate. The elevator guide rail is located between the two arc-shaped clamping plates, and the distance between the two arc-shaped clamping plates and the elevator guide rail is equal. The limiting mechanism includes two wedge plates symmetrically fixed to the inner side of the support frame, two wedge blocks symmetrically arranged between the two wedge plates, and a sliding plate fixedly connected to the bottom of each of the two wedge blocks. An arc-shaped limiting plate is provided on the side of each sliding plate that is close to each other, and the elevator guide rail is located between the two arc-shaped limiting plates.

[0006] Preferably, a sleeve plate is provided between the left movable plate and the right movable plate, which is fixed to the top of the guide plate. The sleeve plate is fixedly sleeved on the outside of the two U-shaped round rods. The top of the sleeve plate is fixedly connected to the second U-shaped round rod. A lifting plate is movably sleeved on the outside of the second U-shaped round rod. Two movable rods are symmetrically rotatably connected to the outside of the lifting plate. The bottom ends of the two movable rods are rotatably connected to the top of the left movable plate and the right movable plate, respectively.

[0007] Preferably, a sleeve block is fixedly sleeved on the middle of the outer side of the second U-shaped rod, and a cylinder is fixedly installed between the bottom of the sleeve block and the top of the lifting plate.

[0008] Preferably, the wedge plate is provided with a groove, and multiple rollers are uniformly rotatably connected in the groove, with the wedge block abutting against the corresponding roller.

[0009] Preferably, the top of the guide plate has two upright plates symmetrically fixedly connected. Each of the two upright plates is fixedly connected to the guide plate on the side closest to each other. The sliding plate is movably sleeved on the outside of the L-shaped rod. A return spring is fixedly connected between the sliding plate and the upright plate, and the return spring is sleeved on the outside of the L-shaped rod.

[0010] Preferably, a limiting rod is fixedly connected to the side of the slide plate near the upright plate, and the limiting rod passes through the upright plate and is movably connected to the upright plate.

[0011] Preferably, two mounting blocks are provided between the wedge block and the L-shaped rod, and a U-shaped rod is fixedly connected between the two mounting blocks. The U-shaped rod passes through the slide plate and is movably connected to the slide plate. An arc-shaped limiting plate is fixedly sleeved on the outside of the U-shaped rod. Tension springs are fixedly connected between the two mounting blocks and the slide plate, and both tension springs are sleeved on the outside of the U-shaped rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the cooperation of the cylinder, lifting plate, U-shaped round rod II, movable rod, right movable plate, left movable plate, U-shaped round rod I, support plate and support frame, the two arc-shaped clamping plates can approach each other to clamp the elevator guide rail from left to right. Through the cooperation of the wedge plate, wedge block, sliding plate, L-shaped round rod, limit rod and upright plate, the two arc-shaped limit plates can clamp the elevator guide rail from front to back, so that the guide plate can be firmly fixed to the elevator guide rail, thereby improving the emergency braking effect. 2. The U-shaped rod, sliding plate, tension spring, and mounting block work together to ensure a tight fit between the arc-shaped limiting plate and the elevator guide rail, thereby increasing the friction between the arc-shaped limiting plate and the elevator guide rail. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the emergency braking device for the counterweight frame according to this utility model. Figure 2 This is a schematic diagram of the guide plate structure of this utility model; Figure 3This is a schematic diagram of the clamping mechanism of this utility model; Figure 4 This is a schematic diagram of the limiting mechanism of this utility model; Figure 5 This is a schematic diagram of the wedge-shaped block structure of this utility model.

[0015] In the diagram: 1. Counterweight frame; 2. Clamping mechanism; 201. U-shaped round rod one; 202. Sleeve plate; 203. Right movable plate; 204. Support plate; 205. Support frame; 206. Arc-shaped clamping plate; 207. Movable rod; 208. Lifting plate; 209. Sleeve block; 2010. Cylinder; 2011. U-shaped round rod two; 2012. Left movable plate; 3. Limiting mechanism; 301. Wedge plate; 302. Wedge block; 303. Roller; 304. Tension spring; 305. Mounting block; 306. Return spring; 307. Vertical plate; 308. Limiting rod; 309. Slide plate; 3010. L-shaped round rod; 3011. Arc-shaped limiting plate; 3012. U-shaped round rod three; 4. Guide plate; 5. Elevator guide rail. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example 1, by Figure 1-2 The present invention relates to an emergency braking device for a counterweight frame, comprising a counterweight frame 1 and an elevator guide rail 5. A guide plate 4 is provided on the outer side of the counterweight frame 1, and the guide plate 4 is movably sleeved on the outer side of the elevator guide rail 5. A clamping mechanism 2 and a limiting mechanism 3 are provided on the top of the guide plate 4.

[0018] Specifically, by Figure 3-5 As shown, the clamping mechanism 2 includes two U-shaped round rods 201 symmetrically fixed to the top of the guide plate 4. A left movable plate 2012 and a right movable plate 203 are symmetrically movably sleeved between the two U-shaped round rods 201. The left movable plate 2012 is located between the right movable plate 203 and the counterweight frame 1. A support frame 205 and a support plate 204 are respectively fixedly connected to the side of the left movable plate 2012 and the right movable plate 203 away from the counterweight frame 1. Arc-shaped clamping plates 206 are fixedly connected to both the support frame 205 and the support plate 204. The elevator guide rail 5 is located between the two arc-shaped clamping plates 206, and the distance between the two arc-shaped clamping plates 206 and the elevator guide rail 5 is equal.

[0019] The limiting mechanism 3 includes two wedge plates 301 symmetrically fixed to the inner side of the support frame 205. Two wedge blocks 302 are symmetrically arranged between the two wedge plates 301. A sliding plate 309 is fixedly connected to the bottom of each of the two wedge blocks 302. An arc-shaped limiting plate 3011 is provided on the side of the two sliding plates 309 that are close to each other. Anti-slip particles are provided on the inner side of the arc-shaped clamp 206 and the arc-shaped limiting plate 3011, which can play an anti-slip role.

[0020] The elevator guide rail 5 is located between two arc-shaped limiting plates 3011. A sleeve plate 202 fixed to the top of the guide plate 4 is provided between the left movable plate 2012 and the right movable plate 203. The sleeve plate 202 is fixedly sleeved on the outside of two U-shaped round rods 201. A second U-shaped round rod 2011 is fixedly connected to the top of the sleeve plate 202. A lifting plate 208 is movably sleeved on the outside of the second U-shaped round rod 2011. Two movable rods 207 are symmetrically rotatably connected to the outside of the lifting plate 208. The bottom ends of the two movable rods 207 are rotatably connected to the top of the left movable plate 2012 and the right movable plate 203, respectively. A sleeve block 209 is fixedly sleeved on the middle of the outside of the second U-shaped round rod 2011. A cylinder 2010 is fixedly installed between the bottom of the sleeve block 209 and the top of the lifting plate 208. A groove is provided on the wedge plate 301. Multiple rollers 303 are evenly rotatably connected in the groove. The wedge block 302 abuts against the corresponding roller 303.

[0021] By setting rollers 303 to prevent direct contact between wedge plate 301 and wedge block 302, friction between them is reduced. Two upright plates 307 are symmetrically fixedly connected to the top of guide plate 4. L-shaped round rods 3010 are fixedly connected to the guide plate 4 on the side of the two upright plates 307 that are close to each other. Slide plate 309 is movably sleeved on the outside of L-shaped round rod 3010. A return spring 306 is fixedly connected between slide plate 309 and upright plate 307. The return spring 306 is sleeved on the outside of L-shaped round rod 3010. By setting a return spring 306, the slide plate 309 is connected to the upright plate 307, preventing the slide plate 309 from sliding arbitrarily on the L-shaped round rod 3010. A limit rod 308 is fixedly connected to the side of the slide plate 309 near the upright plate 307. The limit rod 308 passes through the upright plate 307 and is movably connected to the upright plate 307. Through the cooperation between the limit rod 308 and the upright plate 307, the slide plate 309 can be limited, thereby facilitating the stability of the slide plate 309 when sliding on the L-shaped round rod 3010. In operation, the speed limiter first monitors the speed of the counterweight frame 1. When the speed of the counterweight frame 1 exceeds the preset safety threshold, the speed limiter controls the cylinder 2010 to start, causing the lifting plate 208 to slide downward along the U-shaped rod 2011. Through the two movable rods 207, the right movable plate 203 and the left movable plate 2012 slide along the two U-shaped rods 201 respectively. Through the support plate 204 and the support frame 205, the two arc-shaped clamping plates 206 move closer to each other and clamp the elevator guide rail 5 from left to right. At the same time, the support frame 205 moves the two wedge plates 301 and causes the two wedge blocks 302 to move closer to each other. Meanwhile, the two sliding plates 309 slide along the two L-shaped rods 3010 respectively, and the two arc-shaped limiting plates 3011 move closer to each other and clamp the elevator guide rail 5 from front to back, firmly fixing the guide plate 4 to the elevator guide rail 5, and finally improving the emergency braking effect.

[0022] Specifically, by Figure 5 As shown, two mounting blocks 305 are provided between the wedge block 302 and the L-shaped round rod 3010. A U-shaped round rod 3012 is fixedly connected between the two mounting blocks 305. The U-shaped round rod 3012 passes through the slide plate 309 and is movably connected to the slide plate 309. An arc-shaped limiting plate 3011 is fixedly sleeved on the outside of the U-shaped round rod 3012. Tension springs 304 are fixedly connected between the two mounting blocks 305 and the slide plate 309. Both tension springs 304 are sleeved on the outside of the U-shaped round rod 3012. In operation, when the two arc-shaped limiting plates 3011 are in contact with the elevator guide rail 5, while the two arc-shaped clamping plates 206 are not in contact with the elevator guide rail 5, the two arc-shaped clamping plates 206 continue to move. At the same time, the distance between the sliding plate 309 and the arc-shaped limiting plates 3011 decreases, and the tension spring 304 is stretched. This causes the arc-shaped limiting plates 3011 to fit tightly against the elevator guide rail 5 under the elastic force of the tension spring 304, increasing the friction between the arc-shaped limiting plates 3011 and the elevator guide rail 5, and finally improving the emergency braking effect.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. An emergency braking device for a counterweight frame, comprising a counterweight frame (1) and an elevator guide rail (5), characterized in that: The counterweight frame (1) is provided with a guide plate (4) on the outside. The guide plate (4) is movably sleeved on the outside of the elevator guide rail (5). The top of the guide plate (4) is provided with a clamping mechanism (2) and a limiting mechanism (3). The clamping mechanism (2) includes two U-shaped round rods (201) symmetrically fixed to the top of the guide plate (4). A left movable plate (2012) and a right movable plate (203) are symmetrically and movably sleeved between the two U-shaped round rods (201). The left movable plate (2012) is located between the right movable plate (203) and the counterweight frame (1). A support frame (205) and a support plate (204) are respectively fixedly connected to the side of the left movable plate (2012) and the right movable plate (203) away from the counterweight frame (1). An arc-shaped clamp (206) is fixedly connected to both the support frame (205) and the support plate (204). The elevator guide rail (5) is located between the two arc-shaped clamps (206), and the distance between the two arc-shaped clamps (206) and the elevator guide rail (5) is equal. The limiting mechanism (3) includes two wedge plates (301) symmetrically fixed to the inner side of the support frame (205), two wedge blocks (302) symmetrically arranged between the two wedge plates (301), and a sliding plate (309) fixedly connected to the bottom of each of the two wedge blocks (302). An arc-shaped limiting plate (3011) is provided on the side of each of the two sliding plates (309) that are close to each other. The elevator guide rail (5) is located between the two arc-shaped limiting plates (3011).

2. An emergency braking device for a counterweight frame according to claim 1, characterized in that: A sleeve plate (202) is fixed to the top of the guide plate (4) between the left movable plate (2012) and the right movable plate (203). The sleeve plate (202) is fixedly sleeved on the outside of two U-shaped round rods (201). A U-shaped round rod (2011) is fixedly connected to the top of the sleeve plate (202). A lifting plate (208) is movably sleeved on the outside of the U-shaped round rod (2011). Two movable rods (207) are symmetrically rotatably connected to the outside of the lifting plate (208). The bottom ends of the two movable rods (207) are rotatably connected to the top of the left movable plate (2012) and the right movable plate (203) respectively.

3. An emergency braking device for a counterweight frame according to claim 2, characterized in that: A sleeve block (209) is fixedly sleeved on the middle of the outer side of the U-shaped round rod (2011), and a cylinder (2010) is fixedly installed between the bottom of the sleeve block (209) and the top of the lifting plate (208).

4. An emergency braking device for a counterweight frame according to claim 1, characterized in that: The wedge plate (301) is provided with a groove, and multiple rollers (303) are uniformly connected in the groove. The wedge block (302) abuts against the corresponding roller (303).

5. An emergency braking device for a counterweight frame according to claim 1, characterized in that: The top of the guide plate (4) is symmetrically fixedly connected to two upright plates (307). The two upright plates (307) are fixedly connected to the guide plate (4) on the side that is close to each other. An L-shaped round rod (3010) is fixedly connected between the two upright plates (307) and the guide plate (4). The sliding plate (309) is movably sleeved on the outside of the L-shaped round rod (3010). A return spring (306) is fixedly connected between the sliding plate (309) and the upright plate (307). The return spring (306) is sleeved on the outside of the L-shaped round rod (3010).

6. An emergency braking device for a counterweight frame according to claim 1, characterized in that: The sliding plate (309) is fixedly connected to a limiting rod (308) on the side near the upright plate (307). The limiting rod (308) passes through the upright plate (307) and is movably connected to the upright plate (307).

7. An emergency braking device for a counterweight frame according to claim 1, characterized in that: Two mounting blocks (305) are provided between the wedge block (302) and the L-shaped round rod (3010). A U-shaped round rod (3012) is fixedly connected between the two mounting blocks (305). The U-shaped round rod (3012) passes through the slide plate (309) and is movably connected to the slide plate (309). An arc-shaped limiting plate (3011) is fixedly sleeved on the outside of the U-shaped round rod (3012). Tension springs (304) are fixedly connected between the two mounting blocks (305) and the slide plate (309). Both tension springs (304) are sleeved on the outside of the U-shaped round rod (3012).

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