Anti-falling device for high-altitude cable installation

Abstract

The invention relates to the technical field of cable installation auxiliary devices, in particular to a high-altitude cable installation anti-falling device which comprises a shear type lifting frame provided with a driving screw, and further comprises three hoop ring assemblies including a first side ring and a second side ring, and cable hooks are installed on the first side ring and the second side ring; the abutting blocks are installed on the first side ring and the second side ring in a sliding mode; a transmission assembly is arranged between the abutting plate and the driving screw rod; according to the high-altitude cable installation anti-falling device, the three shroud ring assemblies are matched with the abutting blocks and can be clamped on a cable rod to prevent falling, the three shroud ring assemblies are connected through the three shear type lifting frames, and the corresponding shroud ring assemblies can be driven to independently move along the cable rod; and the three hoop ring assemblies move in a staggered mode to achieve climbing or climbing and descending actions, so that the device can stably convey a cable to be installed to the top end of a cable rod and stably move the cable to the bottom, and the device can prevent falling on the whole and is high in stability.

Description

Technical Field

[0001] The present invention relates to the technical field of cable installation auxiliary devices, and in particular to a high-altitude cable installation anti-falling device. Background Art

[0002] High-altitude cable installation is a high-risk job, especially when laying high-voltage lines, communication cables and cables in large buildings. The cables are heavy and it is necessary to avoid the safety hazard of cables falling during installation.

[0003] At present, before installing high-altitude cables, they need to be pulled by external force to make the cables reach the top of the cable pole. Most of them use large lifting machinery or manual traction, which has problems such as inconvenient operation and low efficiency. In addition, manual traction of heavy cables is time-consuming and labor-intensive and poses a safety hazard, and is prone to causing problems such as cable falling. Therefore, it is considered to design a cable installation device that can stably deliver the cable to be installed to the top of the cable pole to prevent it from falling during the upward transmission of the cable. In view of this, we propose a high-altitude cable installation anti-fall device. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies mentioned in the above background technology and provide a high-altitude cable installation anti-fall device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A high-altitude cable installation anti-fall device comprises two sets of symmetrically arranged scissor lift frames, each of which is provided with a driving screw, and further comprises:

[0007] Three hoop assemblies are connected in sequence from top to bottom through the scissor lift frame, including a first side ring and a second side ring arranged in a ring shape and detachably mounted, wherein the first side ring and the second side ring are equipped with cable hooks for hanging cables;

[0008] A tightening block, used for clamping on the cable rod to keep the hoop assembly fixed, and slidably mounted on the first side ring and the second side ring respectively;

[0009] A push plate is arranged on the outside of the clamping block, and a transmission assembly is provided between the push plate and the driving screw. When the transmission assembly is driven by the driving screw, the push plate moves in the vertical direction. The push plate is used to squeeze the clamping block until it is clamped on the cable rod.

[0010] Preferably, the pressing block is provided with two sloped grooves symmetrically arranged up and down, and a vertical plane structure is provided between the two sloped grooves.

[0011] Preferably, a trapezoidal embedding groove is provided on the side where the abutting plate and the abutting block are in contact, and the inclined groove wall of the trapezoidal embedding groove fits with the sloped groove.

[0012] Preferably, the transmission assembly includes a driving gear coaxially mounted on the end of the driving screw, the driving gear is meshed with a driven gear, the driven gear is coaxially mounted with a connecting rod, and the connecting rod is coaxially mounted with a transmission gear;

[0013] The outer surface of the abutment plate is provided with meshing teeth for meshing with the transmission gear.

[0014] Preferably, the first side ring and the second side ring are provided with symmetrically arranged side support plates, the side support plates are provided with through grooves for inserting the abutment plate and the transmission gear, and the side support plates are provided with limiting sockets for rotatably installing the connecting rod.

[0015] Preferably, the abutting block is provided with two symmetrically arranged mounting grooves, and an annular slider is detachably mounted in the mounting grooves;

[0016] A positioning rod is fixedly mounted on the side support plate, and the annular slider is slidably mounted on the positioning rod.

[0017] Preferably, a spring telescopic rod is installed between the positioning rod and the annular slider, and the spring telescopic rod is used to reset the pressing block outward.

[0018] Preferably, a limiting slider is provided below the pressing block, and a sliding groove for inserting the limiting slider is provided on the side support plate.

[0019] Preferably, anti-slip ribs are provided on the contact surface between the abutting block and the cable rod.

[0020] Preferably, sliding wheels are rotatably mounted on the inner ring walls of the first side ring and the second side ring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The anti-fall device for high-altitude cable installation can prevent falling by clamping the three hoop assemblies on the cable pole in cooperation with the tightening blocks. The three hoop assemblies are connected by three sets of scissor-type lifting frames, which can drive the corresponding hoop assemblies to move independently along the cable pole; the three hoop assemblies move in an interlaced manner to achieve climbing or descending actions, so that the device can stably deliver the cable to be installed to the top of the cable pole and stably move it to the bottom. Overall, the device can prevent falling and has strong stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is one of the overall structural diagrams of the present invention;

[0025] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0026] Figure 3 It is a side view of the overall structure of the present invention;

[0027] Figure 4 This is one of the schematic diagrams of the hoop assembly of the present invention;

[0028] Figure 5 This is the second schematic diagram of the hoop assembly of the present invention;

[0029] Figure 6 This is one of the schematic diagrams of the abutting block of the present invention;

[0030] Figure 7 This is the second schematic diagram of the abutting block of the present invention;

[0031] Figure 8 This is a diagram showing the installation relationship between the abutment block and the scissor lift frame of the present invention;

[0032] Figure 9 This is a cross-sectional view of the installation relationship between the abutment block and the scissor-type lifting frame of the present invention;

[0033] Figure 10 This is a cross-sectional view of the installation relationship between the abutment block and the scissor-type lifting frame of the present invention;

[0034] Figure 11 This is a diagram showing the installation relationship between the abutment block and the hoop assembly of the present invention.

[0035] The meaning of each number in the figure is:

[0036] 1. Scissor lift;

[0037] 2. Hoop assembly; 21. First side ring; 22. Second side ring; 23. Sliding wheel; 24. Side support plate; 241. Through slot; 242. Limiting hole; 243. Slide slot; 25. Fastening bolt; 3. Cable hook;

[0038] 4. Tightening block; 41. Anti-slip rib; 42. Limiting slider; 401. Mounting groove; 402. Slope groove;

[0039] 5. Abutment plate; 6. Driving gear; 7. Driven gear; 8. Connecting rod; 9. Transmission gear; 10. Annular slider; 11. Driving screw; 12. Spring telescopic rod; 13. Positioning rod. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-11 The present invention describes the above technical solution in detail through the following embodiments:

[0042] A high-altitude cable installation anti-fall device, such as Figure 1-3 The structure shown includes two groups of symmetrically arranged scissor lifts 1. The scissor lifts 1 are provided with drive screws 11. In this embodiment, a synchronous motor is installed on the drive screws 11. The existing PLC control technology is used to control the start and stop of the motor, so it will not be described in detail. The purpose of the motor to rotate the drive screws 11 is to achieve the telescopic lifting function of the scissor lift 1, and also includes:

[0043] Three hoop assemblies 2, such as Figure 1-Figure 3 As shown, they are connected in sequence from top to bottom through a scissor lift 1, including a first side ring 21 and a second side ring 22 that are arranged in a ring shape and can be detachably installed. The first side ring 21 and the second side ring 22 are equipped with cable hooks 3 for hanging cables.

[0044] The clamping block 4 is used to clamp the hoop assembly 2 on the cable rod and is slidably mounted on the first side ring 21 and the second side ring 22; it should be noted that, refer to Figure 6 、 Figure 9 and Figure 10 In the structure shown, the pressing block 4 is provided with two sloped grooves 402 symmetrically arranged up and down, and a vertical plane structure is provided between the two sloped grooves 402 .

[0045] The push plate 5 is arranged on the outside of the pressing block 4. A transmission assembly is provided between the push plate 5 and the driving screw 11. When the transmission assembly is driven by the driving screw 11, the push plate 5 moves in the vertical direction. The push plate 5 is used to squeeze the pressing block 4 until it is clamped on the cable rod. For details, refer to Figure 10 In the structure shown, a trapezoidal embedding groove is provided on the side where the support plate 5 and the clamping block 4 fit together, and the inclined groove wall of the trapezoidal embedding groove fits with the slope groove 402, that is, the inclined groove wall of the trapezoidal embedding groove can be squeezed with the slope groove 402 to make the clamping block 4 move inward to be in a clamping state, thereby realizing the anti-fall function.

[0046] See Figures 8-10In the structure shown, the transmission assembly includes a driving gear 6 coaxially installed at the end of the driving screw 11, the driving gear 6 is meshed with a driven gear 7, the driven gear 7 is coaxially installed with a connecting rod 8, and a transmission gear 9 is coaxially installed on the connecting rod 8; the outer plate surface of the abutment 5 is provided with meshing teeth for engaging with the transmission gear 9, and the driving screw 11 is rotated, passing through the driving gear 6, the driven gear 7 and the connecting rod 8, thereby driving the transmission gear 9 to rotate, and then the abutment 5 moves up and down. This process realizes mutual linkage, creatively combining the lifting and lowering of the scissor lift 1 with the clamping of the abutment block 4.

[0047] The first side ring 21 and the second side ring 22 are provided with symmetrically arranged side supporting plates 24. The side supporting plates 24 are provided with through grooves 241 for inserting the abutment plate 5 and the transmission gear 9, and the side supporting plates 24 are provided with limiting insertion holes 242 for rotatably installing the connecting rod 8. In this embodiment, the scissor-type lifting frame 1 is provided with a through opening for inserting the abutment plate 5 corresponding to the through grooves 241. In this embodiment, the abutment plate 5 is limited between the frame body of the scissor-type lifting frame 1 and the side supporting plates 24 and can only move up and down.

[0048] like Figure 6 and Figure 11 In the structure shown, the clamping block 4 is provided with two symmetrically arranged mounting grooves 401, and the annular slider 10 is detachably installed in the mounting groove 401; a positioning rod 13 is fixedly installed on the side support plate 24, and the annular slider 10 is slidably installed on the positioning rod 13; in order to obtain the reset ability of the clamping block 4, a spring telescopic rod 12 is installed between the positioning rod 13 and the annular slider 10, and the spring telescopic rod 12 can reset the clamping block 4 outward when there is no clamping plate 5, so as to prevent the clamping block 4 from hindering the climbing of the device and also to avoid wear of the clamping block 4.

[0049] In this embodiment, a limiting slider 42 is provided under the clamping block 4, and a sliding groove 243 for inserting the limiting slider 42 is provided on the side support plate 24; anti-slip ribs 41 are provided on the contact surface between the clamping block 4 and the cable rod, and in order to reduce movement friction, a sliding wheel 23 is rotatably installed on the inner ring wall of the first side ring 21 and the second side ring 22.

[0050] The working principle of the high-altitude cable installation anti-fall device of this embodiment is as follows: first, the three hoop assemblies 2 with matching inner diameters are sleeved on the cable rod body of the cable to be installed. In this embodiment, in order to avoid obstruction of the movement of the back plate 5, when the scissor-type lifting frame 1 is extended, the back plate 5 moves down, that is, the main body of the back plate 5 is within the stretching range of the scissor-type lifting frame 1; on the contrary, when the scissor-type lifting frame 1 is retracted, the back plate 5 moves up, that is, the main body of the back plate 5 is above the scissor-type lifting frame 1; during the high-altitude cable installation process, the cable hook 3 is hung with the cable to be installed, first, the hoop assembly 2 in the extended state at the bottom is squeezed by the back plate 5 to press the back block 4, so that the lower hoop assembly 2 is fixedly clamped on the cable rod, and then the scissor-type lifting frames 1 corresponding to the middle and upper hoop assemblies 2 are sequentially controlled to extend upward to a clamping state that is also clamped on the cable rod, so that the three hoop assemblies 2 are all firmly clamped on the cable rod;

[0051] The upward climbing process is as follows: keep the uppermost hoop assembly 2 in a clamped state, and fold the middle and lower two scissor-type lifting frames 1 in sequence. During the folding process, the abutment plate 5 moves in the opposite direction, and finally the two hoop assemblies 2 also keep in a clamped state; this process is based on the principle of relative motion, and realizes the climbing of the middle and lower two hoop assemblies 2; then keep the clamped state of the lowermost hoop assembly 2, and rotate to the upper hoop assembly 2 to release the clamping state without completely folding, and then extend the middle and upper scissor-type lifting frames 1 in sequence to clamp; continue to keep the uppermost hoop assembly 2 in a clamped state, and repeat the above steps to achieve stable movement of the device. The hoop assembly 2 is clamped in each movement process, which can effectively avoid falling and has a stable anti-fall function.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A high-altitude cable installation anti-fall device, comprising two sets of symmetrically arranged scissor lifts (1), each of which is provided with a drive screw (11), characterized in that: Also includes: Three hoop assemblies (2) are connected sequentially from top to bottom through the scissor lift (1), and include a first side ring (21) and a second side ring (22) that are arranged in an annular shape and can be detachably installed, and a cable hook (3) for hanging a cable is installed on the first side ring (21) and the second side ring (22); A tightening block (4) is used for clamping on the cable rod to keep the hoop assembly (2) fixed, and is slidably mounted on the first side ring (21) and the second side ring (22); A push plate (5) is arranged on the outside of the pressing block (4), and a transmission assembly is provided between the push plate (5) and the driving screw (11). When the transmission assembly is driven by the driving screw (11), the push plate (5) moves in a vertical direction, and the push plate (5) is used to squeeze the pressing block (4) until it is clamped on the cable rod.

2. The anti-fall device for high-altitude cable installation according to claim 1, characterized in that: The pressing block (4) is provided with two sloped grooves (402) symmetrically arranged up and down, and a vertical plane structure is provided between the two sloped grooves (402).

3. The anti-fall device for high-altitude cable installation according to claim 2, characterized in that: A trapezoidal embedding groove is provided on the mating side of the abutting plate (5) and the abutting block (4), and the inclined groove wall of the trapezoidal embedding groove fits with the sloped groove (402).

4. The anti-fall device for high-altitude cable installation according to claim 3, characterized in that: The transmission assembly comprises a driving gear (6) coaxially mounted on the end of the driving screw (11), the driving gear (6) is meshed with a driven gear (7), the driven gear (7) is coaxially mounted with a connecting rod (8), and the connecting rod (8) is coaxially mounted with a transmission gear (9); The outer surface of the abutment plate (5) is provided with meshing teeth for meshing with the transmission gear (9).

5. The anti-fall device for high-altitude cable installation according to claim 4, characterized in that: The first side ring (21) and the second side ring (22) are provided with symmetrically arranged side support plates (24), the side support plates (24) are provided with through grooves (241) for inserting the abutment plate (5) and the transmission gear (9), and the side support plates (24) are provided with limiting insertion holes (242) for rotatably installing the connecting rod (8).

6. The anti-fall device for high-altitude cable installation according to claim 5, characterized in that: The pressing block (4) is provided with two symmetrically arranged mounting grooves (401), and an annular slider (10) is detachably mounted in the mounting grooves (401); A positioning rod (13) is fixedly mounted on the side support plate (24), and the annular slider (10) is slidably mounted on the positioning rod (13).

7. The anti-fall device for high-altitude cable installation according to claim 6, characterized in that: A spring telescopic rod (12) is installed between the positioning rod (13) and the annular slider (10), and the spring telescopic rod (12) is used to reset the pressing block (4) outward.

8. The anti-fall device for high-altitude cable installation according to claim 5 or 6, characterized in that: A limiting slider (42) is provided below the pressing block (4), and a sliding groove (243) for inserting the limiting slider (42) is provided on the side support plate (24).

9. The anti-fall device for high-altitude cable installation according to claim 1, characterized in that: Anti-slip ribs (41) are provided on the contact surface between the pressing block (4) and the cable rod.

10. The anti-fall device for high-altitude cable installation according to claim 1, characterized in that: Sliding wheels (23) are rotatably mounted on the inner ring walls of the first side ring (21) and the second side ring (22).

Images