A device for preventing false triggering of a safety hook and a safety hook

Abstract

The utility model provides a prevent false triggering device and safety tongs of safety tongs, including being located in safety tongs and being placed in the false touch prevention mechanism of brake slide rail both sides, and the contact distance of false touch prevention mechanism with brake slide rail is less than the contact distance of brake block with brake slide rail, the trigger assembly that is linked to brake block arrangement, trigger assembly is used for controlling brake block clamping brake slide rail to brake safety tongs. The present application utilizes false touch prevention mechanism to be able to in the situation of possibly leading to trigger assembly starting, makes brake block clamping brake slide rail to brake safety tongs, when, block trigger signal transmission to trigger assembly, avoid trigger assembly false triggering safety tongs braking behavior. Meanwhile false touch prevention mechanism will not influence normal operation of trigger assembly when real emergency occurs, when real emergency occurs, utilize trigger assembly to be able to in time control brake block clamping brake slide rail to brake safety tongs, avoid and safety tongs connection's load platform continue to fall and cause safety accident.

Description

Technical Field

[0001] This utility model relates to the field of safety clamp technology, and in particular to a device for preventing accidental triggering of safety clamps and a safety clamp. Background Technology

[0002] With the development of modern industrial production, the technology of rail-guided stacker cranes is constantly improving and perfecting. Rail-guided stacker cranes are the most important lifting and transportation equipment in automated warehouses, and a hallmark of automated warehouses. The safety brake plays an emergency braking role in case of a crisis on the loading platform. During the lifting and lowering of the loading platform, uneven surfaces of the upright square tubes and insufficient installation precision can cause swaying along the fork extension direction, with varying amplitudes. The pre-reserved gap between the brake guide rail and the safety brake cannot be precisely determined, often resulting in accidental triggering of the safety brake during the lifting and lowering of the loading platform. Therefore, further improvements to the original safety brake are needed to avoid accidental triggering. Utility Model Content

[0003] The purpose of this invention is to solve the problem of accidental triggering of the safety clamp during the lifting and lowering process of a cargo platform.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: On one hand, a device for preventing accidental triggering of safety clamps is provided. The safety clamp has a sliding groove and is slidably assembled with a brake rail via the groove. Brake blocks are also provided on both sides of the sliding groove. The device for preventing accidental triggering of the safety clamp includes: an anti-accidental triggering mechanism disposed on the safety clamp and positioned on both sides of the brake rail, wherein the contact distance between the anti-accidental triggering mechanism and the brake rail is less than the contact distance between the brake blocks and the brake rail; and a triggering component linked to the brake blocks, the triggering component being used to control the brake blocks to clamp the brake rail to brake the safety clamp.

[0005] Preferably, the anti-accidental activation mechanism includes: at least one set of rotating members rotatably mounted on the safety clamp, the rotating members sliding relative to the brake rail, and the distance between the set of rotating members being less than the distance between the two brake blocks.

[0006] Preferably, the rotating component is a bearing rotatably mounted on the safety clamp via a bearing mounting seat, or a roller rotatably mounted on the safety clamp.

[0007] Preferably, the rotating component is provided in two sets and is respectively located at both ends of the brake block.

[0008] Preferably, the triggering component includes: a guide wheel assembly; a steel wire rope wound on the guide wheel assembly; a connecting mechanism disposed between the safety clamp and the steel wire rope, wherein the end of the connecting mechanism away from the steel wire rope is linked to the two brake blocks to control the two brake blocks to clamp each other; and a speed limiter disposed on the steel wire rope to prevent the steel wire rope from moving when an abnormal movement speed of the connecting mechanism is detected, thereby triggering the connecting mechanism to control the two brake blocks to clamp each other.

[0009] On the other hand, a safety clamp is also provided, including the aforementioned device for preventing accidental triggering of the safety clamp.

[0010] This utility model provides a device and safety gear to prevent accidental triggering of the safety gear. The device includes an anti-accidental triggering mechanism disposed on the safety gear and positioned on both sides of the brake rail. The contact distance between the anti-accidental triggering mechanism and the brake rail is less than the contact distance between the brake block and the brake rail. A triggering component is linked to the brake block and is used to control the brake block to clamp the brake rail to brake the safety gear. This embodiment of the application, through the anti-accidental triggering mechanism and the triggering component, utilizes the anti-accidental triggering mechanism to block the transmission of the trigger signal to the triggering component when a situation arises that could cause the triggering component to activate, causing the brake block to clamp the brake rail to brake the safety gear, thus preventing the triggering component from accidentally triggering the safety gear braking behavior. Simultaneously, the anti-accidental triggering mechanism does not affect the normal operation of the triggering component in the event of a real emergency. In the event of a real emergency, the triggering component can promptly control the brake block to clamp the brake rail to brake the safety gear, preventing the cargo platform connected to the safety gear from continuing to fall and causing a safety accident. Attached Figure Description

[0011] Figure 1 This utility model provides a structural schematic diagram of a device for preventing accidental triggering of safety clamps; Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0012] Legend: 1. Safety clamp; 2. Brake slide rail; 3. Brake block; 4. Anti-accidental activation mechanism; 41. Rotating component; 5. Trigger assembly; 51. Guide wheel assembly; 52. Wire rope; 53. Connecting mechanism; 54. Speed ​​limiter; 6. Bearing mounting base. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] like Figures 1-2 As shown, this utility model provides a device to prevent accidental triggering of a safety clamp. The device is used for a safety clamp 1, which has a sliding groove and is slidably assembled with a brake rail 2. Brake blocks 3 are also provided on both sides of the sliding groove of the safety clamp 1. The device includes: an anti-accidental triggering mechanism 4 disposed on the safety clamp 1 and positioned on both sides of the brake rail 2, wherein the contact distance between the anti-accidental triggering mechanism and the brake rail 2 is less than the contact distance between the brake blocks 3 and the brake rail 2; and a triggering component 5 linked to the brake blocks 3, which controls the brake blocks 3 to clamp the brake rail 2 to brake the safety clamp 1.

[0016] It should be noted that the device for preventing accidental triggering of the safety clamp provided in this application mainly serves to prevent accidental triggering of the safety clamp 1, thereby reducing equipment alarms caused by accidental triggering of the safety clamp 1 and saving labor costs associated with equipment downtime for troubleshooting. It should be explained that during the lifting and lowering of the cargo platform, due to unevenness of the upright square tube surface and insufficient installation precision, swaying occurs along the extension fork direction, with varying amplitudes. The clearance between the pre-reserved brake guide rail and the safety clamp 1 cannot be precisely determined, and accidental triggering of the safety clamp 1 typically occurs during the lifting and lowering of the cargo platform.

[0017] To achieve the above objectives, in this embodiment, the device for preventing accidental triggering of the safety clamp mainly includes an anti-accidental triggering mechanism 4 and a triggering component 5. By using the anti-accidental triggering mechanism 4 and the triggering component 5, the anti-accidental triggering mechanism 4 can block the transmission of the trigger signal to the triggering component 5 when a situation arises that could cause the triggering component 5 to activate, causing the brake block 3 to clamp the brake rail 2 and brake the safety clamp 1, thus preventing the triggering component 5 from accidentally triggering the braking behavior of the safety clamp 1. Simultaneously, the anti-accidental triggering mechanism 4 will not affect the normal operation of the triggering component 5 in the event of a real emergency. When a real emergency occurs, the triggering component 5 can promptly control the brake block 3 to clamp the brake rail 2 and brake the safety clamp 1, preventing the cargo platform connected to the safety clamp 1 from continuing to fall and causing a safety accident.

[0018] Specifically, the anti-accidental triggering mechanism 4 in the device for preventing accidental triggering of the safety clamp is located on the safety clamp 1 and placed on both sides of the brake rail 2. At the same time, it is necessary to ensure that the contact distance between the anti-accidental triggering mechanism and the brake rail 2 is less than the contact distance between the brake block 3 and the brake rail 2. This ensures that when a non-real emergency occurs, the brake rail 2 contacts the safety clamp 1 first, instead of directly contacting the brake block 3, so that the brake block 3 clamps the brake rail 2 under the action of the triggering component 5, thereby causing the safety clamp 1 to be braked.

[0019] The triggering component 5 in the device for preventing accidental triggering of the safety clamp is linked with the brake block 3. The triggering component 5 is used to control the brake block 3 to clamp the brake slide rail 2 to brake the safety clamp 1 when a non-real emergency occurs, so as to prevent the cargo platform connected to the safety clamp 1 from continuing to fall and causing a safety accident.

[0020] In some embodiments, the anti-accidental activation mechanism 4 includes at least one set of rotating members 41 rotatably mounted on the safety clamp 1. The rotating members 41 slide relative to the brake rail 2, and the distance between the set of rotating members 41 is smaller than the distance between the two brake blocks 3. By having the rotating members 41 contact the brake rail 2 before the brake blocks 3 come into contact with the rotating members 41, the triggering component 5 is prevented from accidentally triggering the brake blocks 3 to brake the safety clamp 1 due to abnormal contact between the brake blocks 3 and the brake rail 2. At the same time, when the rotating members 41 come into contact with the brake rail 2, they can roll relative to each other without interfering with the lifting and lowering of the safety clamp 1.

[0021] In some embodiments, the rotating member 41 is a bearing rotatably mounted on the safety clamp 1 via the bearing mounting seat 6, or a roller rotatably mounted on the safety clamp 1.

[0022] Taking the bearing as an example, the bearing is preferably a deep groove ball bearing. The brake slide rail 2 is installed between two deep groove ball bearings to ensure that the reserved gaps on both sides are equal. During the actual lifting and lowering of the cargo platform, the deep groove ball bearing contacts the brake slide rail 2 earlier than the safety clamp 1 brake block 3, which prevents the cargo platform from swaying along the extension direction and causing false triggering. When an emergency occurs, the safety clamp 1 brake block 3 is lifted upward through the trigger component 5, and the distance between the two brake blocks 3 is drastically reduced to less than the distance between the two deep groove ball bearings, thus triggering the brake protection function normally.

[0023] In some embodiments, the rotating member 41 is provided in two sets and is respectively located at both ends of the brake block 3. By providing two sets or more of the brake blocks 3, the number of protection points of the anti-accidental touch mechanism 4 can be increased, thereby improving the anti-accidental touch capability of the anti-accidental touch mechanism 4.

[0024] In some embodiments, the triggering component 5 includes: a guide wheel assembly 51; a wire rope 52 wound on the guide wheel assembly 51; a connecting mechanism 53 disposed between the safety clamp 1 and the wire rope 52, wherein one end of the connecting mechanism 53 away from the wire rope 52 is linked with two brake blocks 3 to control the two brake blocks 3 to clamp each other; and a speed limiter 54 disposed on the wire rope 52 to prevent the wire rope 52 from moving when an abnormal moving speed of the connecting mechanism 53 is detected, thereby triggering the connecting mechanism 53 to control the two brake blocks 3 to clamp each other.

[0025] In this embodiment, the safety clamp 1 is fixed to the cargo platform and moves up and down simultaneously with the cargo platform via the wire rope 52, guide wheel assembly 51, and speed limiter 54. Its triggering principle is as follows: when the safety rope suspending the cargo platform breaks, the cargo platform falls rapidly. When the falling speed exceeds the rated speed of the speed limiter 54, the pawl at the speed limiter 54 locks the speed limiter 54, stopping the wire rope 52. This tightens the connecting mechanism 53, which in turn engages with the brake blocks 3, causing the brake blocks 3 to be lifted upwards. The distance between the two brake blocks 3 is reduced to less than the thickness of the brake rail 2, thus acting as the brake clamp 1.

[0026] It should be explained that the connecting mechanism 53 can be any mechanism that can simultaneously trigger the two brake blocks 3 to clamp each other, such as a conventional linkage mechanism.

[0027] Another aspect of this utility model provides a safety clamp, including the device described above for preventing accidental triggering of the safety clamp.

[0028] In this embodiment, the device for preventing accidental triggering of the safety clamp provided in this application mainly serves to prevent accidental triggering of the safety clamp 1, thereby reducing equipment alarms caused by accidental triggering of the safety clamp 1 and saving the labor cost of stopping the equipment for troubleshooting.

[0029] This utility model embodiment provides a device and safety clamp to prevent accidental triggering of the safety clamp, including an anti-accidental triggering mechanism 4 disposed on the safety clamp 1 and positioned on both sides of the brake rail 2. The contact distance between the anti-accidental triggering mechanism and the brake rail 2 is less than the contact distance between the brake block 3 and the brake rail 2. A triggering component 5 is linked to the brake block 3 and is used to control the brake block 3 to clamp the brake rail 2 to brake the safety clamp 1. This embodiment, through the setting of the anti-accidental triggering mechanism 4 and the triggering component 5, utilizes the anti-accidental triggering mechanism 4 to block the transmission of the trigger signal to the triggering component 5 when a situation arises that could cause the triggering component 5 to be activated, causing the brake block 3 to clamp the brake rail 2 to brake the safety clamp 1, thus preventing the triggering component 5 from accidentally triggering the braking behavior of the safety clamp 1. Simultaneously, the anti-accidental triggering mechanism 4 does not affect the normal operation of the triggering component 5 in the event of a real emergency. When a real emergency occurs, the triggering component 5 can promptly control the brake block 3 to clamp the brake rail 2 to brake the safety clamp 1, preventing the cargo platform connected to the safety clamp 1 from continuing to fall and causing a safety accident.

[0030] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0031] The above provides a detailed description of a device for preventing accidental triggering of a safety clamp according to the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. 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. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for preventing accidental triggering of a safety clamp, used in a safety clamp, wherein the safety clamp has a sliding groove and is slidably assembled with a brake rail through the sliding groove, and the safety clamp is further provided with brake blocks on both sides of the sliding groove, characterized in that, The device for preventing accidental triggering of the safety clamp includes: An anti-accidental contact mechanism is provided on the safety clamp and placed on both sides of the brake slide rail. The contact distance between the anti-accidental contact mechanism and the brake slide rail is less than the contact distance between the brake block and the brake slide rail. A triggering component is configured in conjunction with the brake block, the triggering component being used to control the brake block to clamp the brake slide rail to brake the safety clamp.

2. The device for preventing accidental triggering of the safety clamp as described in claim 1, characterized in that, The anti-accidental touch mechanism includes: At least one set of rotating components is rotatably mounted on the safety clamp, and the rotating components slide relative to the brake rail, wherein the distance between the set of rotating components is less than the distance between the two brake blocks.

3. The device for preventing accidental triggering of the safety clamp as described in claim 2, characterized in that, The rotating component is a bearing rotatably mounted on the safety clamp via a bearing mounting seat, or a roller rotatably mounted on the safety clamp.

4. The device for preventing accidental triggering of the safety clamp as described in claim 2, characterized in that, The rotating component is provided in two sets and is respectively located at both ends of the brake block.

5. The device for preventing accidental triggering of the safety clamp as described in claim 1, characterized in that, The triggering component includes: Guide wheel assembly; The steel wire rope wound around the guide wheel assembly; A connecting mechanism is provided between the safety clamp and the wire rope. The end of the connecting mechanism away from the wire rope is linked to the two brake blocks to control the two brake blocks to clamp each other. A speed limiter installed on the wire rope is used to prevent the wire rope from moving when an abnormal movement speed of the connecting mechanism is detected, thereby triggering the connecting mechanism to control the two brake blocks to clamp together.

6. A safety clamp, characterized in that, Includes the device for preventing accidental triggering of the safety clamp as described in any one of claims 1-5.

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