Near-electricity alarm device for construction operation ground wire

Abstract

The invention belongs to the field of power construction equipment, and particularly discloses a near-electricity alarm device for a construction operation ground wire, the near-electricity alarm device comprises a near-electricity alarm, a long rod and a hook, the conductive hook is fixedly installed at the end of the long rod, the near-electricity alarm is fixedly installed on the side face, away from a hook opening, of the hook, and an anti-falling piece is installed at the hook opening of the hook; the long rod comprises an insulated inner rod, an outer tube and a handle, one end of the inner rod is fixedly connected with the hook, and the other end of the inner rod is fixedly provided with the handle; the outer pipe coaxially sleeves the inner rod in a sliding manner; the outer pipe is matched with the anti-falling piece; the hook is also electrically connected with one end of a grounding wire, and the other end of the grounding wire is grounded; and a winder is mounted on the outer pipe. According to the device, the outer pipe on the long rod can be used for carrying out effective linkage control on the anti-falling piece, then the lock hook is effectively prevented from falling off, the structural stability of the device is improved, a cable can be monitored and alarmed in real time through the near-electricity alarm, and the operation safety is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of power construction equipment, and specifically relates to a proximity alarm device for grounding wires during construction operations. Background Technology

[0002] When connecting power lines and equipment during construction, various unforeseen safety risks may arise. Since many businesses have their own generators or backup power supplies, if these are activated during power outage construction without disconnecting the line's tie switch, backfeeding could occur, potentially causing electric shock. Therefore, grounding is a crucial safety measure in power construction. Existing grounding systems mainly consist of a hook, operating rod, grounding wire, and proximity alarm. The conductive hook is attached to the power line or pole, and the proximity alarm detects the cable's energization. However, existing hooks and operating rods lack effective coordination, and the anti-derailment plate on the hook cannot be effectively controlled, making them inconvenient to use. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention aims to provide a proximity alarm device for grounding wires used in construction operations. This device can effectively control the anti-detachment component using the outer tube on a long pole, thereby effectively preventing the locking hook from falling off and improving the structural stability of the device. The proximity alarm can monitor and alarm the cable in real time, significantly improving operational safety.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A proximity alarm device for grounding wires used in construction operations includes a proximity alarm, a long rod, and a hook. The conductive hook is fixedly installed at the end of the long rod, and the proximity alarm is fixedly installed on the side of the hook away from the hook opening. An anti-detachment component is installed at the hook opening. The long rod includes an insulated inner rod, an outer tube, and a handle. One end of the inner rod is fixedly connected to the hook, and the other end is fixedly connected to the handle. The outer tube is coaxially and movably sleeved outside the inner rod and can slide along its length. The outer tube cooperates with the anti-detachment component to drive the anti-detachment component to rotate and swing. One end of the grounding wire is electrically connected to the hook, and the other end of the grounding wire is grounded. A reel is installed on the outer tube.

[0005] Furthermore, the inner rod has an upper round and lower square structure, and the anti-detachment device includes a rotating cylinder and a stop bar. One end of the stop bar is horizontally fixed to the outer wall of the rotating cylinder, and the other movable end is horizontally located at the hook opening. The rotating cylinder is coaxially sleeved on the upper cylindrical end of the inner rod, and the outer tube is slidably sleeved on the lower end of the square column of the inner rod. The upper end of the rotating cylinder is rotatably connected to the hook. The outer tube is coaxially movably sleeved on the outside of the rotating cylinder. A zigzag groove with connected ends is opened along the outer circumference of the rotating cylinder. A guide block is fixed on the inner wall of the outer cylinder, and the guide block is slidably locked in the groove.

[0006] Furthermore, the slot includes multiple vertical slots and inclined slots, with the upper and lower ends of the vertical slots respectively connected to the upper end of an adjacent inclined slot on one side and the lower end of an adjacent inclined slot on the other side.

[0007] Furthermore, the upper opening of the outer tube is provided with an upper groove that matches the outer diameter of the rotating cylinder, and the rotating cylinder is sleeved in the upper groove; a first spring is sleeved on the inner rod located in the upper groove; the lower end of the first spring abuts against the bottom of the upper groove, and the upper end abuts against the rotating cylinder.

[0008] Furthermore, the diameter of the handle is larger than that of the inner rod, and the lower end of the outer tube abuts against the handle.

[0009] Furthermore, the handle is provided with a locking element for locking the outer tube.

[0010] Furthermore, the locking component includes a rocker arm, an unlocking block, and a second spring. A lower slot is provided at the lower end opening of the outer tube, and a locking opening is provided on the inner wall of the lower slot. A vertical slot is provided at the upper end of the handle, and the middle part of the rocker arm is rotatably connected in the vertical slot. The upper end of the rocker arm extends out of the vertical slot and is located in the lower slot. A locking tongue is fixed at the upper end of the rocker arm and is engaged in the locking opening. The second spring is horizontally positioned below the vertical slot. A horizontal slot communicating with the vertical slot is provided on the side wall of the handle. The unlocking block is horizontally slidably positioned in the horizontal slot, with one end extending into the vertical slot and abutting against the upper end of the rocker arm, and the other end extending out of the horizontal slot.

[0011] Furthermore, a limiting block is fixed on the unlocking block, the limiting block being located within the transverse groove and having a diameter larger than the diameter of the opening of the transverse groove.

[0012] Furthermore, the hook opening has a notch on the inner side away from the long rod, and the movable end of the stop rod is engaged in the notch.

[0013] The beneficial effects of this invention are as follows: 1. When the anti-detachment component of this application is activated, the operator holds the handle with one hand and pushes the outer tube upwards with the other. The guide block inside the outer tube slides along the outer wall of the rotating cylinder from the top of the first vertical groove to the bottom of the adjacent second vertical groove, compressing the first spring and thus pushing the rotation. This causes the stop lever to rotate horizontally into the notch of the hook. Under the elastic force of the first spring, the outer tube moves downwards, and the guide block slides in the second vertical groove and locks at the top of the second vertical groove, thereby realizing the rotation and locking of the stop lever and effectively preventing the hook from falling off. To unlock the stop lever, push the outer tube upwards again and repeat the above actions to make the stop lever rotate horizontally out of the notch. It is very convenient to use.

[0014] 2. This application unlocks the outer tube by pressing the unlocking block, causing the rocker arm to rotate counterclockwise around the central rotating connection, compressing the second spring, and disengaging the locking tongue from the locking slot of the outer tube. When the stop lever is in the locked state, the second spring force pushes the rocker arm to rotate, causing the locking tongue to engage with the locking slot of the outer tube, thus locking the outer tube and preventing accidental contact with the outer tube that could cause the stop lever to rotate and disengage, thereby improving safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the rotating drum of the present invention; Figure 4 This is a partial structural diagram of the inner rod of the present invention; Figure 5 for Figure 2 Enlarged view of point A in the middle; Figure 6 for Figure 2 Enlarged view of section B in the middle. Detailed Implementation

[0016] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] like Figure 1-6 As shown, this invention proposes a proximity alarm device for grounding wires used in construction operations, including a proximity alarm 2, a long rod, and a hook 1. The conductive hook 1 is fixedly installed at the end of the long rod, and the proximity alarm 2 is fixedly installed on the right side of the hook 1 away from the hook opening. The proximity alarm 2 can effectively detect the proximity through the hook 1 and promptly issue a continuous audible alarm signal to remind workers of danger and prevent electric shock accidents caused by misperception or error. One end of the grounding wire 6 is also electrically connected to the hook 1, and the other end of the grounding wire 6 is grounded. Using the grounding wire 6 for grounding can improve operational safety. A reel 61 is installed on the outer tube 41. The reel 61 adopts a commonly used automatic winding structure, which can automatically wind up the grounding wire 6, avoiding tangling and making it easy to use and carry.

[0018] An anti-detachment component is installed at the hook opening of hook 1. The long rod is made of insulating material and includes an inner rod 42, an outer tube 41 (using a cylindrical structure), and a handle 5. The inner rod 42 has a cylindrical upper end and a square lower end. The upper end of the inner rod 42 is fixedly connected to hook 1, and the handle 5 is fixedly installed at the lower end. The outer tube 41 is coaxially and movably sleeved at the square end of the inner rod 42 and can slide along its length. The outer tube 41 cooperates with the anti-detachment component to drive the anti-detachment component to rotate and swing. Specifically, the anti-detachment device includes a rotating cylinder 32 (cylindrical structure) and a stop rod 31. One end of the stop rod 31 is horizontally fixed to the outer wall of the rotating cylinder 32, and the movable end on the other side is horizontally located at the hook opening. Furthermore, a notch 11 is opened on the inner side of the hook opening away from the long rod, and the movable end of the stop rod 31 is engaged in the notch 11, which can effectively improve the stability of the movable end of the stop rod 31.

[0019] The rotating cylinder 32 is coaxially sleeved at the upper end of the cylindrical inner rod 42. The upper end of the rotating cylinder 32 is rotatably connected to the hook 1, so that the rotating cylinder 32 can only rotate below the hook 1 and cannot slide up and down. The outer tube 41 is coaxially and movably sleeved on the outside of the rotating cylinder 32. A zigzag groove 321 with connected ends is opened along the outer circumference of the rotating cylinder 32. The groove 321 includes multiple vertical grooves 51 and inclined grooves. The upper and lower ends of the vertical grooves 51 are respectively connected to the upper end of the adjacent inclined groove on one side and the lower end of the adjacent inclined groove on the other side. A guide block 411 is fixed on the inner wall of the outer cylinder and is slidably engaged in the groove 321. The upper opening of the outer tube 41 is provided with an upper groove 412 of a certain length that matches the outer diameter of the rotating cylinder 32. The rotating cylinder 32 is slidably sleeved in the upper groove 412. A first spring 413 is sleeved on the inner rod 42 located in the upper groove 412. The lower end of the first spring 413 abuts against the bottom of the upper groove 412, and the upper end abuts against the rotating cylinder 32. The diameter of the handle 5 is larger than that of the inner rod 42, and the lower end of the outer tube 41 abuts against the handle 5.

[0020] When the anti-detachment component of this application is activated, the operator holds the handle 5 with one hand and pushes the outer tube 41 upward with the other. The guide block 411 inside the outer tube 41 slides along the outer wall of the rotating cylinder 32 from the top of the first vertical groove 51 into the bottom of the adjacent second vertical groove 51, compressing the first spring 413 and thus pushing the rotation. This causes the stop lever 31 to rotate horizontally into the recess 11 of the hook 1. Under the elastic force of the first spring 413, the outer tube 41 is pushed downward, and the guide block 411 slides in the second vertical groove 51 and locks at the top of the second vertical groove 51, thereby realizing the rotation and locking of the stop lever 31 and effectively preventing the hook 1 from falling off. To unlock the stop lever 31, push the outer tube 41 upward again and repeat the above action to make the stop lever 31 rotate horizontally out of the recess 11. It is very convenient to use.

[0021] The handle 5 is equipped with a locking element for locking the outer tube 41. The locking element includes a rocker arm 71, an unlocking block 73, and a second spring 72. A lower slot 414 is provided at the lower end opening of the outer tube 41, and a locking opening 415 is provided on the right side of the inner wall of the lower slot 414. A vertical slot 51 is provided downward at the upper end of the handle 5. The middle part of the rocker arm 71 is rotatably connected in the vertical slot 51, and the upper end of the rocker arm 71 extends out of the vertical slot 51 and is located in the lower slot 414. A locking tongue 711 is fixed on the right side of the upper end of the rocker arm 71 and is engaged in the locking opening 415. The second spring 72 is horizontally provided on the right side below the vertical slot 51. A horizontal slot 52 is provided on the side wall of the handle 5, which communicates with the vertical slot 51. The unlocking block 73 is horizontally slidably provided in the horizontal slot 52, with one end extending into the vertical slot 51 and abutting against the upper end of the rocker arm 71, and the other end extending out of the horizontal slot 52. A limiting block 731 is fixed on the unlocking block 73. The limiting block 731 is located in the horizontal groove 52 and its diameter is larger than the diameter of the opening of the horizontal groove 52. The limiting block 731 can slide horizontally with the unlocking block 73 to limit the sliding of the unlocking block 73, thereby preventing the unlocking block 73 from coming out of the horizontal groove 52.

[0022] This application unlocks the outer tube 41 by pressing the unlocking block 73, causing the rocker arm 71 to rotate counterclockwise around the central rotating connection, compressing the second spring 72, and disengaging the locking tongue 711 from the locking slot 415 of the outer tube 41. When the stop lever 31 is in the locked state, the rocker arm 71 can be rotated by the elastic force of the second spring 72, causing the locking tongue 711 to engage with the locking slot 415 of the outer tube 41, thus locking the outer tube 41 and preventing accidental contact with the outer tube 41 that could cause the stop lever 31 to rotate and disengage, thereby improving safety.

[0023] When using this invention, after hook 1 is locked, the operator holds handle 5 with one hand and presses the unlocking block 73 on handle 5, causing the locking tongue 711 on the swing rod 71 to disengage from the locking slot 415; the other hand pushes the outer tube 41 upward, compressing the first spring 413, which in turn drives the rotating drum 32 to rotate and engage the stop rod 31 into the recess 11 of hook 1, thus achieving the anti-disengagement operation; under the elastic force of the first spring 413, the outer tube 41 springs back downward, releasing the unlocking block 73, allowing the locking tongue 711 to re-engage into the locking slot 415, thereby locking the outer tube 41. During power construction operations, the proximity alarm 2 can promptly emit a continuous audible alarm signal to remind the operator of danger; the grounding wire 6 can effectively ground the system.

[0024] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A near miss alarm device for grounding wire of construction work, comprising a near miss alarm, a long pole, and a hook, characterized in that: The electrically conductive hook is fixedly installed at the end of the long rod, and the proximity alarm is fixedly installed at the side of the hook away from the hook opening, and the hook opening is provided with an anti-falling device; the long rod comprises an insulated inner rod, an outer tube and a handle, one end of the inner rod is fixedly connected with the hook, and the other end is fixedly provided with the handle; the outer tube is coaxially movably sleeved on the outer side of the inner rod and can slide along the length direction of the inner rod; the outer tube cooperates with the anti-falling device to drive the anti-falling device to rotate and swing; one end of the hook is electrically connected with a grounding wire, and the other end of the grounding wire is grounded; the outer tube is provided with a wire winding device.

2. The near electroshock warning device for grounding line of construction work according to claim 1, characterized by: The inner rod is of an upper circular and lower square structure, the anti-falling device comprises a rotating cylinder and a blocking rod, one end of the blocking rod is fixedly connected horizontally on the outer wall of the rotating cylinder, and the other end is movably arranged horizontally at the hook opening; the rotating cylinder is coaxially sleeved on the upper end of the cylindrical inner rod, and the outer tube is slidably sleeved on the lower end of the square inner rod; the upper end of the rotating cylinder is rotatably connected with the hook; the outer tube is coaxially movably sleeved on the outer wall of the rotating cylinder; a fold line-shaped clamping groove is formed in the circumferential outer wall of the rotating cylinder; a guide block is fixedly arranged on the inner wall of the outer tube and slidably arranged in the clamping groove.

3. The near electroshock warning device for grounding line of construction work according to claim 2, characterized in that: The clamping groove comprises a plurality of vertical grooves and inclined grooves, and the upper end and the lower end of each vertical groove are communicated with the upper end of the adjacent inclined groove on one side and the lower end of the adjacent inclined groove on the other side, respectively.

4. The near electroshock warning device for grounding line of construction work according to claim 3, characterized in that: An upper hole groove matched with the outer diameter of the rotating cylinder is formed at the opening of the upper end of the outer tube, and the rotating cylinder is sleeved in the upper hole groove; a first spring is sleeved on the inner rod in the upper hole groove; the lower end of the first spring abuts against the bottom of the upper hole groove, and the upper end of the first spring abuts against the rotating cylinder.

5. The near electroshock warning device for grounding line of construction work according to claim 4, characterized in that: The diameter of the handle is larger than that of the inner rod, and the lower end of the outer tube abuts against the handle.

6. The near electroshock warning device for grounding lines of a construction site according to claim 1, characterized in that: A locking member is arranged on the handle for locking the outer tube.

7. The near electroshock warning device for grounding line of construction work according to claim 6, characterized by: The locking member comprises a swing rod, an unlocking block and a second spring, a lower hole groove is formed at the opening of the lower end of the outer tube, and a lock hole is formed in the inner wall of the lower hole groove; a vertical groove is formed downward in the upper end of the handle, the middle part of the swing rod is rotatably connected in the vertical groove, the upper end of the swing rod extends out of the vertical groove and is located in the lower hole groove, a lock tongue is fixedly arranged on the upper end of the swing rod and clamped in the lock hole; the second spring is horizontally arranged below the vertical groove; a horizontal groove is horizontally formed in the side wall of the handle and communicated with the vertical groove, the unlocking block is horizontally slidably arranged in the horizontal groove, one end of the unlocking block extends into the vertical groove and abuts against the upper end of the swing rod, and the other end of the unlocking block extends out of the horizontal groove.

8. The near electroshock warning device for grounding line of construction work according to claim 7, characterized by: A limiting block is fixedly arranged on the unlocking block, the limiting block is located in the horizontal groove and has a diameter larger than that of the opening of the horizontal groove.

9. The near electroshock warning device for grounding line of construction work according to claim 1, characterized by: A notch is formed in the inner side of the hook opening away from the long rod, and the movable end of the blocking rod is clamped in the notch.

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