Lifting mechanism and lifting device for cable accessory construction

Abstract

The present invention discloses a lifting mechanism and a lifting device for cable accessory construction, the lifting mechanism comprising: a displacement assembly, the displacement assembly comprising a connecting frame and a displacement member, the connecting frame comprising a first side portion and a second side portion arranged opposite to the first side portion, the displacement member being connected to the connecting frame and located between the first side portion and the second side portion, a first avoidance space for the first side plate to pass through being formed between the displacement member and the first side portion, and a second avoidance space for the second side plate to pass through being formed between the displacement member and the second side portion; and a lifting assembly, the lifting assembly comprising a lifting shaft connected to the connecting frame and arranged spaced apart from the displacement member, a limiting assembly connected to the lifting shaft, and a lifting member connected to the lifting shaft, a third avoidance space for the bottom plate to pass through being formed between the lifting shaft and the displacement member, a side of the bottom plate away from the displacement member, a side of the first side plate close to the first side portion, and a side of the second side plate close to the second side are all limitedly matched with the limiting assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of cable accessory construction, in particular to a lifting mechanism and a lifting device used for cable accessory construction. Background Art

[0002] During the construction of high-voltage, especially ultra-high-voltage, cables, cable handling and construction docking are commonplace. Because on-site construction environments are often complex and diverse, manual lifting is currently the most common method used to move high-voltage cables and cable accessories. Furthermore, since high-voltage cables and cable accessories are very heavy, moving and lifting them is extremely difficult, time-consuming, and labor-intensive.

[0003] At present, a type of small lifting device has appeared on the market for transporting high-voltage cables or cable accessories. However, high-voltage cables or cable accessories still have the problem of shaking during transportation through this type of lifting device, which can easily cause damage to the accessories. In addition, this type of lifting device cannot accurately and efficiently move the accessories to the installation position, resulting in low construction efficiency and installation quality. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a lifting mechanism to solve the problem that traditional lifting devices cannot accurately and efficiently move cable accessories to the installation location, resulting in low construction efficiency and installation quality.

[0005] The present invention also provides a lifting device for cable accessory construction having the above-mentioned lifting mechanism.

[0006] According to a first aspect of an embodiment of the present invention, a lifting mechanism is used to be installed on a guide rail, the guide rail includes a first side plate, a second side plate spaced apart from the first side plate, and a bottom plate connecting the first side plate and the second side plate, the lifting mechanism includes: a displacement assembly, the displacement assembly includes a connecting frame and a displacement member, the connecting frame includes a first side portion and a second side portion spaced apart and opposite to the first side portion, the displacement member is connected to the connecting frame and is located between the first side portion and the second side portion, and a first gap is formed between the displacement member and the first side for the first side plate to pass through. An avoidance space is formed between the displacement member and the second side portion, a second avoidance space for the second side plate to pass through; and a lifting assembly, the lifting assembly includes a lifting shaft connected to the connecting frame and spaced apart from the displacement member, a limiting assembly connected to the lifting shaft, and a lifting member connected to the lifting shaft, a third avoidance space is formed between the lifting shaft and the displacement member, a side of the bottom plate away from the displacement member, a side of the first side plate close to the first side portion, and a side of the second side plate close to the second side are all limited by the limiting assembly.

[0007] The lifting mechanism according to the embodiment of the present invention has at least the following technical effects:

[0008] In the above-mentioned lifting mechanism, after the lifting mechanism is installed on the guide rail, the cable accessories can be lifted by the lifting member, and the high-voltage cable accessories can be moved to the installation position by the displacement assembly. In the process of the displacement assembly moving the cable accessories, since the side of the bottom plate of the guide rail away from the displacement member, the side of the first side plate close to the first side portion, and the side of the second side plate close to the second side portion are all limited by the limit assembly, the limit assembly can prevent the lifting mechanism from jumping up and down and shaking left and right significantly during the movement, so that the cable accessories can be moved smoothly to the installation position to prevent damage to the accessories. In addition, it can also enable the high-voltage cable accessories to be moved to the installation position accurately and efficiently, thereby improving construction efficiency and installation quality.

[0009] According to some embodiments of the present invention, the limiting assembly includes a first limiting member and a second limiting member, the first limiting member includes a first limiting portion that is limited to and cooperates with a side of the base plate away from the displacement member, and a second limiting portion that is limited to and cooperates with a side of the first side plate close to the first side portion, the second limiting member includes a third limiting portion that is limited to and cooperates with a side of the base plate away from the displacement member, and a fourth limiting portion that is limited to and cooperates with a side of the second side plate close to the second side portion.

[0010] According to some embodiments of the present invention, the first position-limiting member and the second position-limiting member are arranged at intervals along the axial direction of the lifting shaft, the lifting member is arranged between the first position-limiting member and the second position-limiting member, and the two sides of the lifting member are respectively limited and cooperated with the first position-limiting member and the second position-limiting member.

[0011] According to an embodiment of the second aspect of the present invention, a lifting device for cable accessories construction includes: a supporting mechanism, the supporting mechanism having a guide rail, the guide rail including a first side panel, a second side panel spaced apart from the first side portion, and a bottom plate connecting the first side panel and the second side panel; and a lifting mechanism as described above, the lifting mechanism being movably disposed on the guide rail; wherein, the first side panel is passed through the first avoidance space, the second side panel is passed through the second avoidance space, and the bottom plate is passed through the third avoidance space, and the side of the bottom plate away from the displacement member, the side of the first side panel close to the first side portion, and the side of the second side panel close to the second side portion are all limitedly matched with the limiting assembly.

[0012] The lifting device for cable accessory construction according to the embodiment of the present invention has at least the following technical effects:

[0013] In the above-mentioned lifting device for cable accessory construction, after the lifting mechanism is installed on the guide rail, the cable accessories can be lifted by the lifting piece, and the high-voltage cable accessories can be moved to the installation position by the displacement assembly. In the process of the displacement assembly moving the cable accessories, since the side of the bottom plate of the guide rail away from the displacement piece, the side of the first side plate close to the first side portion, and the side of the second side plate close to the second side portion are all limited by the limit assembly, the limit assembly can prevent the lifting mechanism from jumping up and down and shaking left and right significantly during the movement, so that the cable accessories can be moved smoothly to the installation position to prevent damage to the accessories. In addition, it can also enable the high-voltage cable accessories to be accurately and efficiently moved to the installation position, thereby improving construction efficiency and installation quality.

[0014] According to some embodiments of the present invention, a construction space is formed inside the support mechanism, and the support mechanism includes a first side and a second side relative to each other, the first side is formed with a first opening connected to the construction space, the second side is formed with a second opening connected to the construction space, the guide rail is located above the construction space and spans the first side and the second side, and the bottom of the support mechanism is formed with a third opening connected to the construction space.

[0015] According to some embodiments of the present invention, the support mechanism further includes a base frame, a vertical bracket detachably connected to the base frame, and a top bracket detachably provided on the vertical bracket, and the guide rail is detachably provided on the top bracket.

[0016] According to some embodiments of the present invention, the height of the vertical support is adjustable, and the vertical support is operable to drive the top support closer to or away from the bottom support.

[0017] According to some embodiments of the present invention, the vertical support comprises a plurality of vertical beams, each of the vertical beams comprising an outer tube, an inner tube telescopically inserted into the outer tube, and a fastener locking the inner tube to the outer tube, the inner tube being connected to the top support;

[0018] In which, the outer tube is provided with a first positioning hole, and the inner tube is provided with multiple second positioning holes, and the multiple second positioning holes are arranged at intervals along the axial direction of the inner tube, and each second positioning hole can be moved to a position opposite to the first positioning hole, and the fastener is passed through the first positioning hole and the second positioning hole opposite to the first positioning hole.

[0019] According to some embodiments of the present invention, the top support includes a first upper crossbeam and a second upper crossbeam spaced apart from the first upper crossbeam, and the guide rail is connected across the first upper crossbeam and the second upper crossbeam;

[0020] The base frame includes a first lower crossbeam arranged vertically with the first upper crossbeam and a second lower crossbeam arranged vertically with the second upper crossbeam, and the distance between the first lower crossbeam and the first upper crossbeam is adjustable and / or the distance between the second lower crossbeam and the second upper crossbeam is adjustable.

[0021] According to some embodiments of the present invention, universal wheels are further provided below the support mechanism and / or supporting legs are provided below the support mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of a lifting device for cable accessory construction according to an embodiment of the present invention;

[0024] Figure 2 1 is a structural diagram of a lifting mechanism according to an embodiment of the present invention;

[0025] Figure 3 1 is a schematic diagram of the exploded structure of a lifting mechanism according to an embodiment of the present invention;

[0026] Figure 4 1 is a structural diagram of an assembly structure of a lifting mechanism and a guide rail according to an embodiment of the present invention;

[0027] Figure 5 The invention is a construction diagram of a lifting device for cable accessory construction according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] 10. High-voltage cable intermediate joint body; 20. Cable head; 30. Carrying trolley; 100. Support mechanism; 101. Construction space; 102. First opening; 103. Second opening; 104. Third opening; 110. Underframe; 111. First lower crossbeam; 112. Second lower crossbeam; 113. First lower longitudinal beam; 114. Second lower longitudinal beam; 120. Vertical bracket; 121. Vertical beam; 1211. Outer tube; 12111. Mounting portion; 1212. Inner tube; 1213. Fastener; 130. Top bracket; 131. First upper crossbeam; 132. Second upper crossbeam; 140. Guide rail; 141. Bottom plate; 142. First side plate; 143. Second side panel; 150. Inclined beam; 200. Lifting mechanism; 210. Displacement assembly; 211. Connecting frame; 2111. First side portion; 21111. First assembly hole; 2112. Second side portion; 21121. Second assembly hole; 212. Displacement member; 220. Lifting assembly; 221. Lifting shaft; 222. First limiting member; 2221. First limiting portion; 2222. Second limiting portion; 223. Second limiting member; 2231. Third limiting portion; 2232. Fourth limiting portion; 224. Lifting member; 2241. Lifting hole; 225. Locking pin; 230. Universal wheel; 240. Support leg; 300. Hand chain hoist. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0033] like Figure 1 As shown, one embodiment involves a lifting device for cable accessories construction, including a supporting mechanism 100 and a lifting mechanism 200, and the lifting mechanism 200 is arranged on the supporting mechanism 100; the supporting mechanism 100 mainly plays a supporting role, and the lifting mechanism 200 is used to lift the cable accessories.

[0034] like Figure 1 、 Figure 4 As shown, the support mechanism 100 has a guide rail 140 , which includes a first side plate 142 , a second side plate 143 spaced apart from the first side plate 142 , and a bottom plate 141 connecting the first side plate 142 and the second side plate 143 .

[0035] Specifically, the guide rail 140 is a U-shaped channel steel.

[0036] like Figure 1 、 Figure 2 As shown, the lifting mechanism 200 is used to be installed on the guide rail 140 , and the lifting mechanism 200 includes a displacement assembly 210 and a lifting assembly 220 .

[0037] like Figure 2 、 Figure 4 As shown, the displacement assembly 210 includes a connecting frame 211 and a displacement member 212. The connecting frame 211 includes a first side portion 2111 and a second side portion 2112 spaced apart and opposite to the first side portion 2111. The displacement member 212 is connected to the connecting frame 211 and is located between the first side portion 2111 and the second side portion 2112. A first avoidance space for the first side plate 142 to pass through is formed between the displacement member 212 and the first side portion 2111. A second avoidance space for the second side plate 143 to pass through is formed between the displacement member 212 and the second side portion 2112.

[0038] like Figure 1 、 Figure 2 As shown, specifically, the lifting mechanism 200 is installed on the guide rail 140 through the displacement component 210, and the displacement component 210 can move on and along the guide rail 140. Figure 4As shown, the connecting frame 211 is generally N-shaped and includes a first side portion 2111 and a second side portion 2112 that are opposite and spaced apart. The displacement member 212 is connected to the connecting frame 211 and is located between the first side portion 2111 and the second side portion 2112. A first gap is defined between the displacement member 212 and the first side portion 2111, which serves as a first escape space. A second gap is defined between the displacement member 212 and the second side portion 2112, which serves as a second escape space. The displacement member 212 is configured to be placed on the guide rail 140. When the displacement member 212 is placed on the guide rail 140, the bottom plate 141 of the guide rail 140 is located below the displacement member 212. The first side plate 142 of the guide rail 140 is disposed in the first escape space, and the second side plate 143 of the guide rail 140 is disposed in the second escape space.

[0039] Optionally, the displacement member 212 may be a roller or a slider.

[0040] like Figure 2 、 Figure 3 As shown, the lifting assembly 220 includes a lifting shaft 221 connected to the connecting frame 211 and spaced apart from the displacement member 212, a limiting assembly connected to the lifting shaft 221, and a lifting member 224 connected to the lifting shaft 221. Figure 4 As shown, a third avoidance space is formed between the lifting shaft 221 and the displacement member 212 for the bottom plate 141 to pass through, and the side of the bottom plate 141 away from the displacement member 212, the side of the first side plate 142 close to the first side portion 2111, and the side of the second side plate 143 close to the second side portion 2112 are all limitedly cooperated with the limiting assembly.

[0041] like Figure 4 As shown, specifically, the lifting shaft 221 is located below the displacement member 212, with a third gap between the lifting shaft 221 and the displacement member 212, which serves as a third escape space. When the displacement member 212 is placed on the guide rail 140, the bottom plate 141 of the guide rail 140 extends through the third escape space. Furthermore, when the displacement member 212 is placed on the guide rail 140, the side of the guide rail bottom plate 141 away from the displacement member 212, the side of the first side plate 142 close to the first side portion 2111, and the side of the second side plate 143 close to the second side portion 2112 all engage with the limiting assembly.

[0042] Among them, the side of the bottom plate 141 of the guide rail 140 away from the displacement member 212 is in a limited cooperation with the limit assembly, which means that the bottom plate 141 can limit the lifting mechanism 200 from jumping up and down significantly during the movement through the limit assembly. Specifically, there is a first small gap between the limit assembly and the side of the bottom plate 141 away from the displacement member 212. Due to the existence of the first small gap, the limit assembly can be prevented from interfering with the movement of the lifting mechanism 200 on the guide rail 140, and the limit assembly can also prevent the lifting mechanism 200 from jumping up and down significantly during the movement. The side of the first side plate 142 of the guide rail 140 close to the first side portion 2111 and the side of the second side plate 143 close to the second side portion 2112 are both in a limited cooperation with the limit assembly, which means that the first side plate 142 and the second side plate 143 can limit the lifting mechanism 200 from shaking left and right significantly during the movement through the limit assembly. Specifically, there is a second small gap between the limiting assembly and the side of the first side plate 142 close to the first side portion 2111, and there is a third small gap between the limiting assembly and the side of the second side plate 143 close to the second side portion 2112. Due to the existence of the second small gap and the third small gap, the limiting assembly can be prevented from interfering with the movement of the lifting mechanism 200 on the guide rail 140, and the limiting assembly can also prevent the lifting mechanism 200 from shaking significantly left and right during movement.

[0043] Optionally, the width of the first fine gap and / or the second fine gap and / or the third fine gap is between 0.05 mm and 0.2 mm.

[0044] like Figure 4 As shown, more specifically, the limiting assembly includes a first limiting member 222 and a second limiting member 223. The first limiting member 222 includes a first limiting portion 2221 that is engaged with the side of the bottom plate 141 away from the displacement member 212, and a second limiting portion 2222 that is engaged with the side of the first side plate 142 closer to the first side portion 2111. The second limiting member 223 includes a third limiting portion 2231 that is engaged with the side of the bottom plate 141 away from the displacement member 212, and a fourth limiting portion 2232 that is engaged with the side of the second side plate 143 closer to the second side portion 2112. The first limiting portion 2221 and the third limiting portion 2231 jointly prevent the lifting mechanism 200 from jumping up and down significantly during movement, and the second limiting portion 2222 and the fourth limiting portion 2232 cooperate with each other to prevent the lifting mechanism 200 from shaking significantly from side to side during movement.

[0045] Specifically, the first limiting portion 2221 is cylindrical, the second limiting portion 2222 is pie-shaped, the second limiting portion 2222 is fixedly connected to one end of the first limiting portion 2221, and the second limiting portion 2222 is coaxially arranged with the first limiting portion 2221, and the first limiting member 222 is provided with a first mounting hole passing through the axis of the first limiting portion 2221 and the axis of the second limiting portion 2222, the lifting shaft 221 is passed through the first mounting hole, and the first limiting portion 2221 is opposite to the side of the bottom plate 141 away from the displacement member 212 and the second limiting portion 2222 is opposite to the side of the first side plate 142 close to the first side portion 2111. The third limiting portion 2231 is cylindrical, the fourth limiting portion 2232 is pie-shaped, the fourth limiting portion 2232 is fixedly connected to one end of the third limiting portion 2231, and the fourth limiting portion 2232 is coaxially arranged with the third limiting portion 2231, the second limiting member 223 is provided with a second mounting hole passing through the axis of the third limiting portion 2231 and the axis of the fourth limiting portion 2232, the lifting shaft 221 is passed through the second mounting hole, and the third limiting portion 2231 is opposite to the side of the bottom plate 141 away from the displacement member 212 and the fourth limiting portion 2232 is opposite to the side of the second side plate 143 close to the second side portion 2112.

[0046] Furthermore, the first side portion 2111 is provided with a first assembly hole 21111, and the second side portion 2112 is provided with a second assembly hole 21121 opposite to the first side portion 2111. The lifting shaft 221 is passed through the first assembly hole 21111 and the second assembly hole 21121, and is spaced apart from the displacement member 212, and the lifting shaft 221 is detachably connected to the connecting frame 211 through a locking pin 225.

[0047] Furthermore, the first stopper 222 and the second stopper 223 are spaced apart along the axial direction of the lifting shaft 221, and the lifting member 224 is disposed between the first stopper 222 and the second stopper 223. Both sides of the lifting member 224 are respectively engaged with the first stopper 222 and the second stopper 223. In this way, the first stopper 222 and the second stopper 223 can prevent the lifting member 224 from shaking, thereby further improving the smooth movement of the cable accessory.

[0048] like Figure 2 、 Figure 4 Specifically, the lifting member 224 is provided with a lifting hole 2241 and a third assembly hole. The lifting shaft 221 is disposed in the third assembly hole, positioning the lifting member 224 between the first stopper 222 and the second stopper 223. The two sides of the lifting member 224 abut against the first stopper 222 and the second stopper 223, respectively. The lifting hole 2241 is used to connect a hand chain hoist 300 or a lifting rope, allowing construction workers to lift the cable accessories using the hand chain hoist 300 or the lifting rope.

[0049] Optionally, the first limiting member 222 and / or the second limiting member 223 are made of noise reduction and vibration absorbing materials such as nylon, rubber or plastic.

[0050] like Figures 1 to 4 As shown, in the above-mentioned lifting mechanism 200, after the lifting mechanism 200 is installed on the guide rail 140, the cable accessories can be lifted by the lifting member 224, and the high-voltage cable accessories can be moved to the installation position by the displacement assembly 210. In the process of the displacement assembly 210 moving the cable accessories, since the side of the bottom plate 141 of the guide rail 140 away from the displacement member 212, the side of the first side plate 142 close to the first side portion 2111, and the side of the second side plate 143 close to the second side portion 2112 are all limited by the limiting assembly, the limiting assembly can prevent the lifting mechanism 200 from jumping up and down and shaking left and right during the movement, so that the cable accessories can be moved smoothly to the installation position to prevent damage to the accessories. In addition, the high-voltage cable accessories can also be moved to the installation position accurately and efficiently, thereby improving construction efficiency and installation quality.

[0051] like Figure 1 As shown, in one embodiment, a construction space 101 is formed inside the support mechanism 100, and the support mechanism 100 includes a first side and a second side opposite to each other, the first side is formed with a first opening 102 connected to the construction space 101, the second side is formed with a second opening 103 connected to the construction space 101, the guide rail 140 is located above the construction space 101 and spans the first side and the second side, and the bottom of the support mechanism 100 is formed with a third opening 104 connected to the construction space 101.

[0052] like Figure 1 、 Figure 5 As shown, when the cable head 20 needs to be connected to the high-voltage cable intermediate joint body 10, the cable head 20 and the high-voltage cable intermediate joint body 10 can be assembled in the construction space 101. Specifically, the cable head 20 can be inserted into the construction space 101 through the first opening 102 or the second opening 103, and then the cable head 20 can be lifted by the lifting mechanism 200. Then, the lifting mechanism 200 or the cable head 20 can be pushed to connect the cable head 20 to the high-voltage cable intermediate joint body 10.

[0053] The high-voltage cable intermediate joint body 10 can be supported in the construction space 101 by a transport trolley 30 , and the third opening 104 is used for the transport trolley 30 placed on the ground to support the high-voltage cable intermediate joint body 10 in the construction space 101 .

[0054] like Figure 1As shown, in one embodiment, the support mechanism 100 further includes a base frame 110, a vertical support 120 detachably connected to the base frame 110, and a top support 130 detachably mounted on the vertical support 120. The guide rail 140 is detachably mounted on the top support 130. Thus, the support mechanism 100 has a detachable mounting structure, which significantly reduces the space occupied after disassembly, making it easier to transport to a construction site (particularly underground in a tunnel).

[0055] Optionally, the base frame 110 and the vertical bracket 120 can be detachably connected by means of bolts or snaps, the vertical bracket 120 and the top bracket 130 can be detachably connected by means of bolts or snaps, and the guide rail 140 and the top bracket 130 can be detachably connected by means of bolts or snaps.

[0056] Furthermore, an oblique beam 150 is connected between the top bracket 130 and the vertical bracket 120 to improve the stability between the top bracket 130 and the vertical bracket 120 .

[0057] In one embodiment, the height of the vertical support 120 is adjustable, and the vertical support 120 is operable to drive the top support 130 closer to or away from the bottom frame 110. In this way, the height of the guide rail 140 can be changed according to the specific conditions of the construction site, increasing the flexibility of the device.

[0058] Specifically, the vertical support 120 includes multiple vertical beams 121. Each vertical beam 121 includes an outer tube 1211, an inner tube 1212 that telescopically extends within the outer tube 1211, and a fastener 1213 that locks the inner tube 1212 to the outer tube 1211. The inner tube 1212 is connected to the top support 130. The outer tube 1211 is provided with a first positioning hole, and the inner tube 1212 is provided with a plurality of second positioning holes. The plurality of second positioning holes are spaced apart along the axial direction of the inner tube 1212, and each second positioning hole can be moved to a position opposite the first positioning hole. The fastener 1213 is inserted into the first positioning hole and the second positioning hole opposite the first positioning hole. In this way, the height of the vertical beam 121 can be adjusted by moving the inner tube 1212 so that different second positioning holes on the inner tube 1212 are opposite the first positioning hole, and then locking with the fastener 1213.

[0059] Optionally, the fastener 1213 is a bolt or a pin.

[0060] Furthermore, the top bracket 130 includes a first upper crossbeam 131 and a second upper crossbeam 132 spaced apart from the first upper crossbeam 131. The guide rail 140 straddles the first upper crossbeam 131 and the second upper crossbeam 132. The bottom bracket 110 includes a first lower crossbeam 111 arranged vertically with the first upper crossbeam 131 and a second lower crossbeam 112 arranged vertically with the second upper crossbeam 132. The distance between the first lower crossbeam 111 and the first upper crossbeam 131 is adjustable, and / or the distance between the second lower crossbeam 112 and the second upper crossbeam 132 is adjustable. This allows the first lower crossbeam 111 and / or the second lower crossbeam 112 to be adjusted to a suitable position to avoid the cables, depending on the height of the cables on site.

[0061] Specifically, there are four vertical beams 121, which are respectively located at the four corners of the support mechanism 100, and the four vertical beams 121 are arranged in a square shape. Each vertical beam 121 is provided with multiple mounting portions 12111, and the multiple mounting portions 12111 are arranged at vertical intervals. The first lower horizontal beam 111 or the second lower horizontal beam 112 can be connected to the mounting portions 12111 on different vertical beams 121 to achieve height changes.

[0062] More specifically, the mounting portion 12111 is a mounting plate, and the first lower cross beam 111 or the second lower cross beam 112 can be fixed to the mounting plate by bolts.

[0063] like Figure 1 As shown, in one embodiment, a universal wheel 230 is further provided below the support mechanism 100, through which the position of the lifting device can be adjusted. The universal wheel 230 has a braking function. When the lifting device moves to a predetermined position, the universal wheel 230 can be braked to prevent the universal wheel 230 from rolling and causing the lifting device to deviate from the predetermined position.

[0064] Furthermore, a support leg 240 is provided below the support mechanism 100 , and the support leg 240 is used to provide support for the support mechanism 100 .

[0065] like Figures 1 to 5 As shown, the specific implementation of the above-mentioned lifting device for cable accessories construction is as follows:

[0066] (1) Transport all parts of the lifting device to the construction site;

[0067] (2) Install the support legs 240 on the first lower longitudinal beam 113 and the second lower longitudinal beam 114;

[0068] (3) Install a universal wheel 230 at the bottom of each outer tube 1211;

[0069] (4) Assemble the first lower longitudinal beam 113 and the outer tubes 1211 of two of the vertical beams 121 into a first assembly, and assemble the second lower longitudinal beam 114 and the outer tubes 1211 of the other two vertical beams 121 into a second assembly, and ensure that all the legs 240 and the universal wheels 230 are located on the same side;

[0070] (5) Assemble the first component and the second component into a whole through the first lower cross beam 111 and the second lower cross beam 112, so that the whole encloses the construction location;

[0071] (6) Install an inner tube 1212 into each outer tube 1211, adjust the position between the outer tube 1211 and the inner tube 1212, and lock the inner tube 1212 and the outer tube 1211 with the fastener 1213;

[0072] (7) Install the first upper cross beam 131 on the inner tubes 1212 of two of the vertical beams 121 to form the first opening 102; install the second upper cross beam 132 on the inner tubes 1212 of the other two vertical beams 121 to form the second opening 103;

[0073] (8) Install the oblique beam 150 between the first upper cross beam 131 and the two adjacent inner tubes 1212; install the oblique beam 150 between the second upper cross beam 132 and the two adjacent inner tubes 1212;

[0074] (9) According to the construction location, select a suitable location on the first upper crossbeam 131 and the second upper crossbeam 132 to install the guide rail 140;

[0075] (10) Move the lifting device to a suitable position and brake the universal wheel 230;

[0076] (11) Tighten the legs 240 downward to press against the ground;

[0077] (12) Place the displacement assembly 210 on the guide rail 140 and assemble the lifting assembly 220 with the displacement assembly 210;

[0078] (13) Use the hand chain hoist 300 to connect the lifting member 224 and the cable accessories to be lifted, such as the cable head 20, and use the hand chain hoist 300 to adjust the cable head 20 to a suitable height;

[0079] (14) Push the cable head 20 or the lifting mechanism 200 so that the cable head 20 is slowly and smoothly connected to the high-voltage cable intermediate joint body 10 to complete the construction;

[0080] (15) After the construction is completed, the lifting device shall be dismantled.

[0081] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.

[0082] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A lifting device for cable accessories construction, characterized in that: include: a support mechanism having a guide rail, the guide rail including a first side plate, a second side plate spaced apart from the first side plate, and a bottom plate connecting the first side plate and the second side plate; and The lifting mechanism is a lifting mechanism that is movably arranged on the guide rail, and the lifting mechanism includes a displacement assembly and a lifting assembly, and the displacement assembly includes a connecting frame and a displacement member, the connecting frame includes a first side portion and a second side portion arranged opposite to the first side portion, the displacement member is connected to the connecting frame and is located between the first side portion and the second side portion, a first avoidance space for the first side plate to pass through is formed between the displacement member and the first side portion, and a second avoidance space for the second side plate to pass through is formed between the displacement member and the second side portion; the lifting assembly includes a lifting shaft connected to the connecting frame and arranged at a distance from the displacement member, a limiting assembly connected to the lifting shaft, and a lifting member connected to the lifting shaft, a third avoidance space for the bottom plate to pass through is formed between the lifting shaft and the displacement member, a side of the bottom plate away from the displacement member, a side of the first side plate close to the first side portion, and a side of the second side plate close to the second side are all limitedly matched with the limiting assembly; The limiting assembly includes a first limiting member and a second limiting member, the first limiting member including a first limiting portion that is limitedly matched with a side of the base plate away from the displacement member, and a second limiting portion that is limitedly matched with a side of the first side plate close to the first side portion, the second limiting member including a third limiting portion that is limitedly matched with a side of the base plate away from the displacement member, and a fourth limiting portion that is limitedly matched with a side of the second side plate close to the second side portion; the first limiting member and the second limiting member are spaced apart along the axial direction of the lifting shaft, the lifting member is arranged between the first limiting member and the second limiting member, and both sides of the lifting member are limitedly matched with the first limiting member and the second limiting member respectively; A construction space is formed inside the support mechanism, and the support mechanism includes a first side and a second side relative to each other, the first side is formed with a first opening connected to the construction space, the second side is formed with a second opening connected to the construction space, the guide rail is located above the construction space and spans the first side and the second side, and the bottom of the support mechanism is formed with a third opening connected to the construction space.

2. The lifting device for cable accessories construction according to claim 1, characterized in that: The support mechanism further includes a base frame, a vertical support detachably connected to the base frame, and a top support detachably arranged on the vertical support, and the guide rail is detachably arranged on the top support.

3. The lifting device for cable accessories construction according to claim 2, characterized in that: The height of the vertical support is adjustable, and the vertical support is operable to drive the top support closer to or away from the bottom support.

4. The lifting device for cable accessories construction according to claim 3, characterized in that: The vertical support comprises a plurality of vertical beams, each of the vertical beams comprising an outer tube, an inner tube telescopically inserted into the outer tube, and a fastener for locking the inner tube to the outer tube, wherein the inner tube is connected to the top support; In which, the outer tube is provided with a first positioning hole, and the inner tube is provided with multiple second positioning holes, and the multiple second positioning holes are arranged at intervals along the axial direction of the inner tube, and each second positioning hole can be moved to a position opposite to the first positioning hole, and the fastener is passed through the first positioning hole and the second positioning hole opposite to the first positioning hole.

5. The lifting device for cable accessories construction according to claim 2, characterized in that: The top support comprises a first upper crossbeam and a second upper crossbeam spaced apart from the first upper crossbeam, and the guide rail is connected across the first upper crossbeam and the second upper crossbeam; The base frame includes a first lower crossbeam arranged vertically with the first upper crossbeam and a second lower crossbeam arranged vertically with the second upper crossbeam, and the distance between the first lower crossbeam and the first upper crossbeam is adjustable and / or the distance between the second lower crossbeam and the second upper crossbeam is adjustable.

6. The lifting device for cable accessories construction according to claim 1, characterized in that: Universal wheels and / or supporting legs are further provided below the support mechanism.

Images