Deflector and guide rail type fall arrest device

Abstract

The application relates to the technical field of electric power construction equipment, and provides a steering device and a guide rail type anti-falling device, wherein the steering device comprises a mounting piece, two first connecting pieces, two second connecting pieces and a pull-connection assembly; the two first connecting pieces are arranged on the two sides of the mounting piece along the horizontal direction, and the first ends of the first connecting pieces are connected with the mounting piece; the first connecting pieces are provided with first mounting parts which are arranged in the horizontal direction and extend, and the first mounting parts are connected with one end of a first guide rail; the two second connecting pieces are arranged on the two sides of the mounting piece along the vertical direction, and the first ends of the second connecting pieces are connected with the mounting piece; the second ends of the upper second connecting piece among the two second connecting pieces are connected with the second ends of the first connecting pieces through the pull-connection assembly; the second connecting pieces are connected with a second guide rail; the first guide rail can be supported in the single supporting point mode, and the strength of the connection is improved through the pull-connection assembly.

Description

Technical Field

[0001] This application relates to the field of power construction equipment technology, and in particular to a steering device and a guide rail type fall arrestor. Background Technology

[0002] The power transmission tower is equipped with a rail-mounted fall arrestor. The fall arrestor can slide on the rail-mounted fall arrestor, and at the same time, the fall arrestor is connected to the power construction workers by ropes to prevent the power construction workers from falling from heights.

[0003] In related technologies, rail-type fall arrestors include horizontal and vertical rails. Generally, a deflector needs to be installed at the intersection of the horizontal and vertical rails so that the fall arrestor can switch between vertical and horizontal directions to meet the needs of the fall arrestor to accompany the power construction personnel to different locations. For the horizontal rail, one end is connected to the deflector, and the other end needs to be fitted with a clamp and fixed to the end of the crossarm to achieve two-point support for the horizontal rail.

[0004] However, the connection between the steering gear and the horizontal guide rail is relatively fragile and prone to breakage. In addition, the distance between the fixing point of the clamp and the end wire of the crossarm is small. Considering the safety of the operation, the installation must be carried out after the power is cut off. Therefore, the installation of the guide rail type fall arrestor on the operating transmission tower must wait for a power outage window, which affects the work efficiency and installation progress. Summary of the Invention

[0005] Therefore, it is necessary to provide a steering mechanism and a guide rail type fall arrestor to address the problems of low reliability and poor installation convenience of guide rail type fall arrestors in related technologies.

[0006] In a first aspect, this application provides a steering mechanism for a rail-type fall arrestor. The rail-type fall arrestor includes a first guide rail and a second guide rail that intersect each other. The first guide rail extends horizontally, and the second guide rail extends vertically. The steering mechanism includes: a mounting component, a first connecting component, a second connecting component, and a connecting assembly. Two first connecting components are provided, horizontally positioned on opposite sides of the mounting component, with a first end of each first connecting component connected to the mounting component. A first mounting portion extending horizontally is provided on each first connecting component, and this first mounting portion is used to connect to one end of the first guide rail. Two second connecting components are provided, vertically positioned on opposite sides of the mounting component, with a first end of each second connecting component connected to the mounting component. The second connecting component is used to connect to the second guide rail. The second end of the upper second connecting component is connected to the second end of the first connecting component via the connecting assembly. The second connecting component is used to connect to the second guide rail.

[0007] In one embodiment, the first mounting portion is configured as a groove, and the first mounting portion is used for one end of the first guide rail to extend into.

[0008] In one embodiment, both ends of the first mounting portion are provided with connection holes, which are used for detachable connection with the first guide rail by fasteners.

[0009] In one embodiment, the mounting member is provided with mounting holes for a connecting rail to be rotatably mounted on the mounting member. The connecting rail has a first rotation state and a second rotation state. Two first connecting members are connected to two first guide rails in a one-to-one correspondence, and two second connecting members are connected to two second guide rails in a one-to-one correspondence. In the first rotation state, the connecting rail is used to connect the two first guide rails. In the second rotation state, the connecting rail is used to connect the two second guide rails.

[0010] In one embodiment, the second connector is provided with a second mounting portion extending along the vertical direction, the second mounting portion being used to connect to one end of the second guide rail.

[0011] In one embodiment, the second mounting portion is configured as a groove, and the second mounting portion is used for one end of the second guide rail to extend into.

[0012] In one embodiment, the central axis of the mounting component is perpendicular to the extension direction of the first guide rail and the extension direction of the second guide rail, and the orthographic projection shape of the mounting component on a plane perpendicular to the central axis is circular, quadrilateral, or octagonal.

[0013] In one embodiment, the pull assembly includes a pull body and bent portions disposed at both ends of the pull body, wherein one of the bent portions is detachably connected to the second end of the first connector, and the other bent portion is detachably connected to the second end of the second connector.

[0014] In one embodiment, both the first connector and the second connector are configured as channel steel.

[0015] Secondly, this application also provides a rail-type fall arrestor, comprising: a first rail, a second rail, and a steering mechanism as described above; one end of the first rail is connected to a first connector, and one end of the second rail is connected to a second connector.

[0016] The aforementioned steering gear and rail-type fall arrestor can support the first rail with a single fulcrum, while the connection strength is enhanced by the connecting assembly. During actual installation, one end of the first rail is connected to the first mounting part. Since the extension direction of the first mounting part is the same as that of the first rail, the connection length between the first mounting part and the first rail is increased, improving the reliability of the connection and reducing the tilt of the first rail. From the perspective of the first rail as a whole, it is equivalent to reliably supporting the first rail with a single fulcrum. Compared to the connection method of the first rail in related technologies, this application does not require connecting the other end of the first rail to the end of the crossarm via a clamp. Consequently, it also eliminates the need to wait for a power outage window to install the clamp and the end of the crossarm, improving installation efficiency and accelerating the installation progress. Simultaneously, the connecting assembly acts as a cable, further enhancing the connection strength between the mounting part and the first connecting part, reducing the risk of breakage, and thus better complementing the single-fulcrum connection method of the first rail, correspondingly improving the connection strength between the first rail and the steering gear. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the steering gear provided in one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the assembly structure of the steering gear with the first guide rail and the second guide rail provided in one embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the structure of a pull-up assembly provided in one embodiment of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Mounting component; 110. Mounting hole;

[0022] 200, First connector; 210, First mounting part; 211, Connecting hole;

[0023] 300. Second connector; 310. Second mounting part;

[0024] 400. Connecting assembly; 410. Connecting body; 420. Bending section;

[0025] 500, First guide rail;

[0026] 600, Second guide rail;

[0027] 700. Connecting rail. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] The power transmission tower is equipped with a rail-mounted fall arrestor. The fall arrestor can slide on the rail-mounted fall arrestor, and at the same time, the fall arrestor is connected to the power construction workers by ropes to prevent the power construction workers from falling from heights.

[0035] In related technologies, rail-type fall arrestors include horizontal and vertical rails. Generally, a deflector needs to be installed at the intersection of the horizontal and vertical rails so that the fall arrestor can switch between vertical and horizontal directions to meet the needs of the fall arrestor to accompany the power construction personnel to different locations. For the horizontal rail, one end is connected to the deflector, and the other end needs to be fitted with a clamp and fixed to the end of the crossarm to achieve two-point support for the horizontal rail.

[0036] However, the connection between the steering gear and the horizontal guide rail is relatively fragile and prone to breakage. In addition, the distance between the fixing point of the clamp and the end wire of the crossarm is small. Considering the safety of the operation, the installation must be carried out after the power is cut off. Therefore, the installation of the guide rail type fall arrestor on the operating transmission tower must wait for a power outage window, which affects the work efficiency and installation progress.

[0037] Based on this, this application addresses the problems of low reliability and poor installation convenience of guide rail type fall arrest devices in related technologies, and provides a steering device and a guide rail type fall arrest device.

[0038] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the steering gear according to one embodiment of this application is shown. Figure 2 A schematic diagram of the assembly structure of the steering device with the first guide rail and the second guide rail in one embodiment of this application is shown. The steering device provided in one embodiment of this application is used in a guide rail type fall arrest device. The guide rail type fall arrest device includes a first guide rail and a second guide rail that intersect each other. The first guide rail extends in a horizontal direction and the second guide rail extends in a vertical direction. The first guide rail is a horizontal guide rail and the second guide rail is a vertical guide rail. The steering device includes a mounting component 100, a first connecting component 200, a second connecting component 300, and a pulling assembly 400.

[0039] Two first connectors 200 are provided, which are horizontally disposed on both sides of the mounting member 100. The first end of the first connector 200 is connected to the mounting member 100. The first connector 200 is provided with a first mounting part 210 extending horizontally, which is used to connect to one end of the first guide rail 500. Two second connectors 300 are provided, which are vertically disposed on both sides of the mounting member 100. The first end of the second connector 300 is connected to the mounting member 100. The second connector 300 is used to connect to the second guide rail 600. The second end of the upper second connector 300 is connected to the second end of the first connector 200 through the pull assembly 400. The steering gear is generally shaped like a cross.

[0040] Specifically, the steering gear shown in this embodiment can support the first guide rail 500 with a single fulcrum, while the connection strength is improved by the connecting component 400. In the actual installation process, one end of the first guide rail 500 is connected to the first mounting part 210. Since the extension direction of the first mounting part 210 is the same as the extension direction of the first guide rail 500, the connection length between the first mounting part 210 and the first guide rail 500 is increased, improving the reliability of the connection and reducing the tilt of the first guide rail 500. From the overall perspective of the first guide rail 500, it is equivalent to supporting the first guide rail 500 with a single fulcrum. Compared to the connection method of the first guide rail in related technologies, this application does not require the other end of the first guide rail 500 to be connected to the end of the crossarm via a clamp. Correspondingly, it also eliminates the need to wait for a power outage window to install the clamp and the end of the crossarm, thus improving installation efficiency and speeding up the installation process. At the same time, the connecting component 400 can act as a cable, further enhancing the connection strength between the mounting component 100 and the first connecting component 200, reducing the risk of breakage, and thus better cooperating with the single-point connection method of the first guide rail 500, thereby correspondingly improving the connection strength between the first guide rail 500 and the steering gear.

[0041] The connection between the first connector 200 and the second connector 300 and the mounting component 100 can be either welding or integral molding.

[0042] Combination Figure 1 and Figure 2 As shown, in some embodiments, the first mounting portion 210 shown in this embodiment is constructed as a groove, and the first mounting portion 210 is used for one end of the first guide rail 500 to extend into.

[0043] Specifically, when installing the first guide rail 500, one end of the first guide rail 500 is simply inserted into the groove, making installation convenient. The outer surface of the first guide rail 500 fits against the inner wall of the groove, and the inner wall of the groove supports the first guide rail 500. From a partial view of the first end of the first guide rail 500, the groove and the first guide rail 500 have a relatively long connection length, and correspondingly, the connection area is also large, resulting in good connection reliability. This allows the first guide rail 500 to remain horizontal, thus improving both the ease of installation and the reliability of the connection.

[0044] Combination Figure 1 As shown, in some embodiments, both ends of the first mounting part 210 shown in this embodiment are provided with connection holes 211, that is, there are two sets of connection holes 211, and the two sets of connection holes 211 are used to detachably connect with the first guide rail 500 through fasteners.

[0045] Specifically, after one end of the first guide rail 500 is inserted into the groove, the through hole on the first guide rail 500 is aligned with the connecting hole 211. The fastener passes through the through hole and the connecting hole 211 to connect the first guide rail 500 and the first connector 200. Since there are two sets of connecting holes 211, from a local perspective of the first end of the first guide rail 500, it is equivalent to fixing the first end of the first guide rail 500 at two points, which improves the connection strength between the first connector 200 and the first guide rail 500.

[0046] Among them, the fastener can be a bolt.

[0047] Combination Figure 1 and Figure 2 As shown, in some embodiments, the mounting member 100 shown in this embodiment is provided with mounting holes 110, which are used to allow the connecting rail 700 to be rotatably mounted on the mounting member 100. The connecting rail 700 has a first rotation state and a second rotation state. Two first connecting members 200 are connected to two first guide rails 500 in a one-to-one correspondence, and two second connecting members 300 are connected to two second guide rails 600 in a one-to-one correspondence. In the first rotation state, the connecting rail 700 is used to connect the two first guide rails 500. In the second rotation state, the connecting rail 700 is used to connect the two second guide rails 600.

[0048] Specifically, the fall arrestor can slide on the first guide rail 500 and the second guide rail 600. When it slides to the connecting rail 700, the connecting rail 700 can be rotated according to the actual working position requirements, so that the fall arrestor can switch between the first guide rail 500 and the second guide rail 600, thereby enabling the fall arrestor to move with the power construction personnel. For example, when it is necessary to switch the fall arrestor on the first guide rail 500 to the second guide rail 600, first rotate the connecting rail 700 to the first rotation state, so that the connecting rail 700 is engaged with the first guide rail 500. After the fall arrestor slides onto the connecting rail 700, rotate the connecting rail 700 to the second rotation state, so that the connecting rail 700 is engaged with the second guide rail 600, thereby allowing the fall arrestor to slide onto the second guide rail 600.

[0049] Furthermore, combined Figure 2 As shown, in some embodiments, the two ends of the connecting rail 700 shown in this embodiment are set as arc surfaces, thereby reducing the interference between the connecting rail 700 and the first guide rail 500 and the second guide rail 600 during rotation.

[0050] Combination Figure 1 and Figure 2 As shown, in some embodiments, the second connector 300 shown in this embodiment is provided with a second mounting portion 310 extending in the vertical direction, and the second mounting portion 310 is used to connect to one end of the second guide rail 600.

[0051] Specifically, similar to the first mounting part 210, in the actual installation process, one end of the second guide rail 600 is connected to the second mounting part 310. Since the extension direction of the second mounting part 310 is the same as the extension direction of the second guide rail 600, the connection length between the second mounting part 310 and the second guide rail 600 is increased, the reliability of the connection is improved, and the tilt of the second guide rail 600 is reduced.

[0052] Combination Figure 1 and Figure 2 As shown, in some embodiments, the second mounting portion 310 shown in this embodiment is constructed as a groove, and the second mounting portion 310 is used for one end of the second guide rail 600 to extend into.

[0053] Specifically, similar to the first mounting part, when installing the second guide rail 600, one end of the second guide rail 600 is simply inserted into the groove, making installation convenient. The outer surface of the second guide rail 600 fits against the inner wall of the groove, and the inner wall of the groove supports the second guide rail 600. From a partial view of the first end of the second guide rail 600, the groove and the second guide rail 600 have a relatively long connection length, and correspondingly, the connection area is also large, resulting in good connection reliability. This allows the second guide rail 600 to remain vertical, thus improving both the ease of installation and the reliability of the connection.

[0054] Combination Figure 1 and Figure 2 As shown, in some embodiments, the central axis of the mounting member 100 shown in this embodiment is perpendicular to the extension direction of the first guide rail 500 and the extension direction of the second guide rail 600. The orthographic projection shape of the mounting member 100 on a plane perpendicular to the axis of the mounting member 100 is a circle, a quadrilateral or an octagon.

[0055] Specifically, the mounting component 100 is disc-shaped. The shape of the mounting component 100 is not limited, as long as it can meet the connection requirements of the first connector 200 and the second connector 300. Figure 1 and Figure 2 The mounting component 100 is shown to be disc-shaped.

[0056] Combination Figures 1 to 3 As shown, Figure 3 A schematic diagram of the structure of a pull assembly according to an embodiment of this application is shown. In some embodiments, the pull assembly 400 shown in this embodiment includes a pull body 410 and bending portions 420 disposed at both ends of the pull body 410. One bending portion 420 is detachably connected to the second end of the first connector 200, and the other bending portion 420 is detachably connected to the second end of the second connector 300.

[0057] Specifically, since the pull assembly 400 is set at an angle to the first connector 200 and the second connector 300, a bending portion 420 is provided, the bending angle of which corresponds to the included angle, so that the bending portion 420 can fit with the first connector 200 and the second connector 300, thereby increasing the contact area between the pull assembly 400 and the first connector 200 and the second connector 300 and improving the reliability of the pull assembly 400 connection.

[0058] The bent portion 420 can be connected to the first connector 200 and the second connector 300 by bolts.

[0059] Combination Figure 1 and Figure 2 As shown, in some embodiments, the first connector 200 and the second connector 300 shown in this embodiment are both configured as channel steel. The channel steel is a standard part, and the groove on the channel steel can serve as the groove body. Correspondingly, the first guide rail 500 and the second guide rail 600 are "I"-shaped aluminum alloy profiles. The "I"-shaped aluminum alloy profiles are also standard parts. When the "I"-shaped aluminum alloy profiles are installed into the grooves, shims are used to fill the gaps between the grooves and the "I"-shaped aluminum alloy profiles, and then bolts are used to lock them in place.

[0060] The steering gear can be made of 304 stainless steel or any material whose strength meets the national standard for fall protection. It is required to have a static load of 22kN and be able to withstand a dynamic load of 100kg and a vertical impact of 40cm in an impact test.

[0061] Based on the same inventive concept, this application also provides a rail-type fall arrestor, including: a first rail 500, a second rail 600 and a steering mechanism as described above; one end of the first rail 500 is connected to the first connector 200, and one end of the second rail 600 is connected to the second connector 300.

[0062] Since the rail-type fall arrestor uses the steering gear shown in the above embodiments, and the specific structure of the steering gear is as described in the above embodiments, and since the rail-type fall arrestor uses all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0063] In the actual assembly process of the rail-mounted fall arrestor, each component needs to be lifted from inside the tower body of the power transmission tower to reduce the collision with the power transmission line during the lifting process. After being lifted to the predetermined position, each component is moved out of the tower body through the gap between the angle steel of the tower body for assembly. The gap between the angle steel can be understood as the hollow part of the tower body. The steering gear of this application uses a connecting component to strengthen the connection strength between the first connecting member and the second connecting member, thereby effectively reducing the overall size of the steering gear so that the steering gear can pass through the gap between the angle steel.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A steering mechanism for a rail-type fall arrestor, the rail-type fall arrestor comprising a first guide rail and a second guide rail intersecting each other, the first guide rail extending horizontally and the second guide rail extending vertically, characterized in that... The steering system includes: Installation components; Two first connectors are disposed on both sides of the mounting component along the horizontal direction, and the first end of the first connector is connected to the mounting component; the first connector is provided with a first mounting portion extending along the horizontal direction, and the first mounting portion is used to connect to one end of the first guide rail. Two second connectors are disposed on both sides of the mounting member along the vertical direction, with the first end of each second connector connected to the mounting member; the second connectors are used to connect to the second guide rail; and A pull-up assembly, wherein the second end of the upper second connector of the two second connectors is connected to the second end of the first connector via the pull-up assembly; The pull assembly includes a pull body and bent portions disposed at both ends of the pull body, wherein one of the bent portions is detachably connected to the second end of the first connector, and the other bent portion is detachably connected to the second end of the second connector. The first mounting part is constructed as a groove, and the first mounting part is used for one end of the first guide rail to extend into it; In the actual installation process, the steering gear connects one end of the first guide rail to the first mounting part. Since the extension direction of the first mounting part is the same as the extension direction of the first guide rail, the connection length between the first mounting part and the first guide rail is increased. From the overall perspective of the first guide rail, it can be reliably supported by a single fulcrum. The steering gear does not need to be connected to the end of the crossarm via a clamp at the other end of the first guide rail, nor does it need to wait for a power outage window to install the clamp and the end of the crossarm. Both ends of the first mounting part are provided with connection holes, which are used for detachable connection with the first guide rail by fasteners; The second connector is provided with a second mounting portion extending along the vertical direction, and the second mounting portion is used to connect to one end of the second guide rail; The second mounting part is constructed as a groove, and the second mounting part is used for one end of the second guide rail to extend into it; Both the first connector and the second connector are configured as channel steel.

2. The steering system according to claim 1, characterized in that, The mounting component is provided with mounting holes for the connecting rail to be rotatably mounted on the mounting component. The connecting rail has a first rotation state and a second rotation state. Two first connecting components are connected to two first guide rails in a one-to-one correspondence, and two second connecting components are connected to two second guide rails in a one-to-one correspondence. In the first rotational state, the connecting rail is used to connect the two first guide rails; In the second rotational state, the connecting rail is used to connect the two second guide rails.

3. The steering system according to claim 1, characterized in that, The central axis of each mounting component is perpendicular to the extension direction of the first guide rail and the extension direction of the second guide rail. The orthographic projection shape of the mounting component on a plane perpendicular to the central axis is a circle, a quadrilateral, or an octagon.

4. A rail-type fall arrestor, characterized in that, include: The first guide rail, the second guide rail, and the steering gear as described in any one of claims 1 to 3; One end of the first guide rail is connected to the first connector, and one end of the second guide rail is connected to the second connector.

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