Misunderstanding-proof locking safety belt

Abstract

The utility model discloses a kind of safety belts of anti-misunderstanding lock, including hook and safety rope being connected with each other, further including handle and the lock rod for closing the opening on hook;Lock rod is inserted in handle, button is equipped with with lock rod drive connection on handle, to drive lock rod to fall off opening;Limiting piece that limit button moves is slidably arranged in handle, and the sliding track of limiting piece and the sliding track of button are perpendicular and intersect;Safety rope is equipped with a group of ejector rod, channel is provided in handle for ejector rod sliding, limiting piece is located in channel;When ejector rod slides into channel, ejector rod pushes limiting piece and button stagger;Button has the avoidance slot of avoiding ejector rod, to make button can slide;In the safety belt of anti-misunderstanding lock of the utility model, operating personnel must be unlocked limiting piece by pulling safety rope before unlocking hook, equivalent to increase the step of confirming whether the safety belt belongs to self-worn, greatly reduce the danger caused by mislocking safety belt.

Description

Technical Field

[0001] This utility model relates to the field of seat belts, and more specifically, to a seat belt that prevents misunderstanding locking. Background Technology

[0002] Safety belts must be worn when working at heights. Sometimes multiple people need to work on the tower at the same time. Due to the narrow working space, there are sometimes multiple sets of safety belt hooks on one hook point. When workers are unhooking, they may make mistakes and unhook other people's safety belt hooks, causing danger.

[0003] Currently, there are locks in the industry that use combination locks or fingerprints. However, in high-altitude working environments, using combination locks is cumbersome, and workers generally wear gloves. Fingerprint unlocking is also inconvenient. Therefore, the above-mentioned locks using combination locks or fingerprints are not suitable for installation on safety belts. In view of this, there is a need to provide a safety belt that prevents misunderstanding of locking. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a safety belt with a misunderstanding-proof locking mechanism.

[0005] The objective of this utility model is achieved through the following technical solution: A safety belt designed to prevent mis-locking includes hooks and a safety rope that are interconnected, as well as a handle and a locking bar for closing an opening on the hooks; The locking bar is inserted into the handle, which has a button connected to the locking bar for driving the locking bar out of the hook opening. A limiter is slidably installed inside the handle to restrict the movement of the button, and the sliding trajectory of the limiter intersects the sliding trajectory of the button perpendicularly. A set of push rods is installed on the safety rope, and a channel is provided inside the handle for the push rods to slide into, with the limiter located in the channel. When the push rod slides into the channel, it pushes the limiter to displace the button. The button has a relief groove to avoid the push rods, allowing the button to slide.

[0006] The anti-misunderstanding lock safety belt of this utility model has at least the following beneficial effects: When the operator unlocks the safety belt hook, due to the constraint of the limiting device, the operator cannot press the button to disengage the locking bar from the hook opening, so the safety belt hook cannot be unlocked directly. When unlocking, the safety rope must first be manually pulled a certain distance so that the safety rope drives the top rod to slide into the handle. The top rod pushes open the limiting device, so that the button can be released from the constraint of the limiting device before the safety belt hook can be pressed to unlock. Therefore, before unlocking the hook, the operator must pull the safety rope to unlock the limiter, which is equivalent to adding a step to confirm whether the safety belt belongs to the operator, greatly reducing the danger caused by mis-locking the safety belt.

[0007] Furthermore, the handle is also equipped with a first spring that abuts against the locking bar. The first spring is used to push the locking bar to close the opening of the hook, so that the hook is always in the closed state when the button is not pressed.

[0008] Furthermore, a set of steel wire ropes is installed inside the handle, with the other end of the steel wire ropes connected to the locking bar; the button abuts against the steel wire ropes; when the button is pressed into the handle, the steel wire ropes drive the locking bar to disengage from the opening of the hook, and the first elastic element is in a compressed state.

[0009] Furthermore, a second spring is provided inside the handle to push the limiting member to slide to the intersection of the limiting member's sliding trajectory and the button's sliding trajectory; when the push rod pushes the limiting member away from the intersection, the second spring is in a compressed state; before the safety rope is pulled, the limiting member always restrains the button, so that the button cannot be pressed.

[0010] Furthermore, the limiting component is in the shape of a round tube, and the safety rope is threaded through the limiting component.

[0011] Furthermore, the side wall of the push rod has a slot, and a locking block that can be locked into the slot is slidably disposed inside the handle. The handle also has a spring pin that abuts against the locking block to push the locking block to lock it in the slot. The locking block extends to the end of the sliding path of the button. When the button is pressed, the button pushes the locking block out of the slot, thus unlocking the push rod.

[0012] Furthermore, the handle has a set of notches, through which a portion of the safety rope threaded inside the handle is exposed, making it easy to pull the safety rope through the notches.

[0013] Furthermore, the top rod has through holes extending through both ends of the axial direction, through which the safety rope is threaded; the top rod is also equipped with a locking assembly for locking the safety rope.

[0014] Furthermore, the locking assembly includes several claws and a nut at the end of the top rod; the top rod has a threaded portion that connects to the nut, and when the nut is screwed into the threaded portion, the nut presses against the several claws to lock onto the safety rope, which can easily lock the top rod onto the safety rope.

[0015] Furthermore, the width of the clearance groove is greater than the diameter of the top rod and less than the diameter of the limiting member. When the limiting member is pressed against the clearance groove, the button cannot be pressed. However, when the top rod is located in the clearance groove, the button can be pressed freely. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the safety belt with anti-misoperation locking provided in an embodiment of this utility model; Figure 2 A perspective view of the button provided in an embodiment of this utility model; Figure 3 A perspective view of the top rod provided in an embodiment of this utility model; The attached diagram lists the components represented by each number as follows: 1. Hook; 2. Safety rope; 3. Locking bar; 4. Handle; 40. Notch; 41. First spring; 42. Steel wire rope; 43. Limiting component; 44. Second spring; 45. Locking block; 46. Spring pin; 5. Button; 50. Clearance groove; 6. Top rod; 60. Locking groove; 61. Locking claw; 62. Threaded part; 7. Nut. Detailed Implementation

[0017] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] Reference Figures 1 to 3 This utility model discloses a safety belt with anti-misoperation lock, including a hook 1, a safety rope 2, a locking bar 3, a handle 4, a button 5, and a top bar 6.

[0019] One end of the hook 1 is installed inside the handle 4, and the end of the hook 1 inside the handle 4 is connected to the safety rope 2. The end of the hook 1 outside the handle 4 has an opening through which the hook 1 can be suspended to the external structure.

[0020] Reference Figure 1 The locking rod 3 is inserted into the handle 4, that is, the handle 4 has a hole that matches the diameter of the locking rod 3. The locking rod 3 can slide up and down in the hole. When the locking rod 3 slides to the highest position, the upper end of the locking rod 3 abuts against the hook 1 to close the opening.

[0021] The handle 4 is equipped with a button 5 that is connected to the locking rod 3. By pressing the button 5, the locking rod 3 can be driven to slide down and disengage from the hook 1.

[0022] Reference Figure 1 The handle 4 is also equipped with a set of steel wire ropes 42. The upper end of the steel wire ropes 42 is connected to the locking rod 3, and the lower end of the steel wire ropes 3 is connected to the inside of the handle 4. A set of first springs 41 is installed in the socket. The upper end of the first springs 41 abuts against the locking rod 3. Under the drive of the first springs 41, the locking rod 3 can abut against the hook 1. At this time, the steel wire ropes 42 are in a taut state. In this embodiment, the button 5 slides left and right. Therefore, the button 5 can compress the first springs 41 by pulling the steel wire ropes 42, and make the upper end of the locking rod 3 disengage from the hook 1.

[0023] Reference Figure 1In this embodiment, a limiting member 43 is slidably disposed inside the handle 4 to restrict the movement of the button 5. The sliding trajectory of the limiting member 43 intersects perpendicularly with the sliding trajectory of the button 5. Specifically, when the button 5 slides left and right, the limiting member 43 slides up and down, and the sliding trajectories of the two intersect at a set of points. When the limiting member 43 slides to the intersection point, it can prevent the button 5 from being pressed into the handle 4. When the limiting member 43 slides up, it can release the restriction on the button 5.

[0024] Reference Figure 1 A set of push rods 6 are provided on the safety rope 2. When not unlocked, the push rods 6 are located outside the handle 4, and there is a certain gap between the push rods 6 and the handle 4. A channel for the push rods 6 to slide into is provided inside the handle 4. The opening of the channel is located at the lower end of the handle 4, so that the push rods 6 can slide into the channel.

[0025] The limiting member 43 is located within the channel and above the sliding trajectory of the push rod 6. Therefore, when the push rod 6 slides into the channel, it can push the limiting member 43 upward to release the limiting member 43 from restricting the button 5. However, at this time, the push rod 6 occupies the position of the limiting member 43. To avoid interference from the pressing and sliding of the push rod 6 on the button 5, the following solution is adopted in this embodiment: Reference Figure 2 The button 5 has a relief groove 50 to avoid the push rod 6, which allows the button 5 to avoid the push rod 6 and slide freely.

[0026] Specifically, in this embodiment, referring to Figure 1 The limiting member 43 is in the shape of a round tube, and the safety rope 2 is threaded through the limiting member 43. At the same time, the width of the clearance groove 50 is greater than the diameter of the top rod 6 and less than the diameter of the limiting member 43. Therefore, when the limiting member 43 is located at the aforementioned intersection point, the limiting member 43 presses against the clearance groove 50, making it impossible to press the button 5. When the top rod 6 is located at the aforementioned intersection point, the top rod 6 is located in the clearance groove 50, and the button 5 can be pressed and slid freely.

[0027] Reference Figure 1 The handle 4 is also equipped with a second spring 44 for pushing the limiting member 43 to slide to the aforementioned intersection point. When the push rod 6 pushes the limiting member 43 away from the intersection point, the second spring 44 is in a compressed state. Before the safety rope 2 is pulled, the second spring 44 pushes the limiting member 43, so that the limiting member 43 is always located at the aforementioned intersection point, and constrains the button 5, so that the button 5 cannot be pressed or slid.

[0028] Reference Figure 1 The handle 4 has a set of notches 40, and part of the safety rope 2 that is threaded through the handle 4 is exposed in the notches 40. The operator can pull the safety rope 2 outward through the notches 40.

[0029] When the push rod 6 is inserted into the handle 4, it can be prevented from sliding out along the lower end of the handle 4 by the weight balance of the safety rope 2 outside the notch 40.

[0030] When the weight of the safety rope 2 outside the gap 40 is insufficient to balance the weight of the top rod 6 and the safety rope 2 at the lower end of the top rod 6, the top rod 6 is prone to falling downwards. To solve the above problem, the following solution is adopted: In one embodiment, reference is made to Figure 1 The push rod 6 has a slot 60 on its side wall, and a locking block 45 is slidably disposed inside the handle 4, which can be locked into the slot 60. The locking block 45 is located below the sliding path of the button 5. The handle 4 is also provided with a spring pin 46 that abuts against the locking block 45, which is used to push the locking block 45 to lock in the slot 60; wherein, the locking block 45 extends upward to the end of the sliding track of the button 5. When the button 5 is pressed to the deepest point, the button 5 pushes the locking block 45 out of the slot 60, thereby unlocking the push rod 6.

[0031] In this embodiment, refer to Figure 3 The top rod 6 has through holes extending through both ends of the axial direction, through which the safety rope 2 is inserted; the top rod 6 is also equipped with a locking assembly for locking the safety rope 2.

[0032] The locking assembly can be a pin that is inserted into the safety rope 2; or, the locking assembly can also be a clamp that is fastened to the safety rope 2.

[0033] In one embodiment, reference is made to Figure 3 The locking assembly includes several claws 61 and a nut 7 located at the end of the top rod 6; the top rod 6 has a threaded portion 62 that connects to the nut 7. When the nut 7 is screwed into the threaded portion 62, the nut 7 compresses the several claws 61 to retract and lock onto the safety rope 2, so that the top rod 6 can be easily locked onto any position on the safety rope 2.

[0034] The working principle of this anti-misunderstanding locking safety belt is as follows: First, loosen the nut 7 in the locking assembly to adjust the position of the push rod 6 on the safety rope 2, and then tighten the nut 7 to lock the push rod 6 onto the safety rope 2. Generally, the position of the push rod 6 on the safety rope 2 should be between 30cm and 50cm from the handle 4, so that the operator needs to have a clear pulling process on the safety rope 2 before unlocking the limit piece 43, so as to ensure that the operator can judge whether the safety rope 2 is connected to himself during the pulling process. Before removing hook 1, pull safety rope 2 outward along notch 40 so that push rod 6 slides into handle 4 through the opening at the lower end of handle 4. Push rod 6 pushes limit piece 43 upward and opens it. At the same time, push rod 6 is locked by block 45. Press button 5. Since the limiting member 43 has moved above the horizontal sliding trajectory of button 5, refer to... Figure 1 At this time, button 5 can drag the steel wire rope 42 to the left, which compresses the first spring 41 and drives the locking rod 3 to slide down, opening the opening of the hook 1 so that the hook can be directly removed; at the same time, when button 5 is pressed to the left to the deepest point, button 5 presses the locking block 45 to disengage from the top rod 6. At this time, simply pull the lower end of the safety rope 2 or let the safety rope 2 slide down by its own weight to make the top rod 6 slide out of the handle 4.

[0035] When button 5 is released, the first spring 41 resets and causes the locking rod 3 to re-close the opening of hook 1; during the process, the wire rope 42 is taut, causing button 5 to slide outwards from handle 4 and reset; at the same time, under the action of the second spring 44, the limiting member 43 slides down to reset and block button 5, so that button 5 cannot be pressed directly.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A safety belt designed to prevent mis-locking, comprising hooks and a safety rope connected together, characterized in that, It also includes a handle and a locking bar for closing the opening of the hook; The locking rod is inserted into the handle, and the handle is provided with a button that is driven to the locking rod to drive the locking rod out of the opening of the hook; a limiting member is slidably disposed in the handle to restrict the movement of the button, and the sliding trajectory of the limiting member intersects the sliding trajectory of the button perpendicularly; a set of top rods is provided on the safety rope, and a channel for the top rods to slide into is provided in the handle, and the limiting member is located in the channel; When the push rod slides into the channel, the push rod pushes the limiting member to be misaligned with the button; the button has a relief groove to avoid the push rod, so that the button can slide.

2. The safety belt with anti-mislocking feature according to claim 1, characterized in that, The handle is also provided with a first spring that abuts against the locking bar. The first spring is used to push the locking bar to close the opening of the hook.

3. The safety belt with anti-mislocking feature according to claim 2, characterized in that, The handle is also equipped with a set of steel wire ropes, which are connected to the locking rod; the button abuts against the steel wire ropes; when the button is pressed into the handle, the steel wire ropes drive the locking rod to disengage from the opening of the hook.

4. The safety belt with anti-misoperation locking according to claim 1, characterized in that, The handle is also provided with a second spring for pushing the limiting member to slide to the intersection of the button sliding trajectory and the limiting member sliding trajectory; When the push rod pushes the limiting member to slide away from the intersection, the second spring is in a compressed state.

5. The safety belt with anti-mislocking feature according to claim 4, characterized in that, The limiting member is in the shape of a round tube, and the safety rope is threaded through the limiting member.

6. The safety belt with anti-mislocking feature according to claim 1, characterized in that, The top rod has a slot on its side wall, and a locking block that can be locked into the slot is slidably disposed inside the handle. A spring pin that abuts against the locking block is also provided inside the handle. The card block extends partially to the end of the sliding path of the button. When the button is pressed, the button pushes the card block out of the slot.

7. The safety belt with anti-mislocking feature according to claim 1, characterized in that, The handle has a set of notches, through which a portion of the safety rope threaded through the handle is exposed.

8. The safety belt with anti-mislocking feature according to claim 1, characterized in that, The top rod has through holes extending through both ends of the axial direction, and the safety rope passes through the through holes; the top rod is also provided with a locking assembly for locking the safety rope.

9. The safety belt with anti-mislocking feature according to claim 8, characterized in that, The locking assembly includes several claws and a nut at the end of the top rod; the top rod has a threaded portion that connects to the nut; when the nut is screwed onto the threaded portion, the nut presses against several of the claws and locks them onto the safety rope.

10. The safety belt with anti-mislocking feature according to claim 1, characterized in that, The width of the clearance groove is greater than the diameter of the top rod and less than the diameter of the limiting member.

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