Column switch hoisting device

Abstract

The utility model discloses a pole-mounted switch hoisting device. The pole-mounted switch hoisting device comprises a quick-release fastener, a rotatable part, a supporting part, a sliding part and a pulley assembly, the quick-release fastener is fixed on an electric pole below the cross arm; the rotatable part is fixed together with the quick-release fastener through the connecting piece; the supporting part is mounted on the rotatable part and can rotate along with the rotatable part, and the supporting part is provided with a hoisting arm which is perpendicular to the electric pole and extends outwards; the sliding part is mounted on the hoisting arm and can move on the hoisting arm so as to be close to or away from the electric pole; the pulley assembly is installed on the sliding component and can move along with the sliding component, and the pulling rope penetrates through the pulley assembly and then lifts the pole-mounted switch. According to the utility model, a firm hanging point can be provided, hanging on a cross arm before is avoided, the length can be adjusted, and four low-voltage wires can be avoided when high-voltage and low-voltage same-pole erection is carried out, so that the requirements of different distances from a telegraph pole in different scenes can be met.

Description

Technical Field

[0001] The utility model relates to a pole switch hoisting device, belonging to the engineering technology of agricultural power distribution. Background Art

[0002] During the installation of existing pole-mounted switches, workers climb the pole to the crossarm position, hang the hoisting pulley on the straight, tension-resistant crossarm, and then hoist. The problem with this situation is that it is an illegal operation. The crossarm is not a solid component for heavy objects such as switches. If the on-site workers want to ensure that a certain distance is maintained between the switch and the pole during hoisting, they must hang the pulley to the outside of the crossarm, which will cause the crossarm to deflect to the side of the heavy object due to the weight of the switch during hoisting, posing a serious safety risk. If you want to avoid the deflection of the crossarm, you must mount the pulley closer to the pole. This will result in a very small distance between the switch and the pole during hoisting, and the switch is prone to collide with the pole during the rising process, causing damage. At the same time, the switch needs to be rotated when it is hoisted to the work surface. At this time, because the distance between the hoisting point and the pole is too small, the rope will be tilted and stressed during the rotation, which is not conducive to the fixation of the switch and increases the risk of the operator.

[0003] At the same time, because the mounting point is on the original cross arm, it is easy to cause the safe distance between the staff's working point or the new switch and the live parts to be small, which is harmful to people.

[0004] The fundamental reason why the above-mentioned installation problems exist is that there are no mounting points with large load-bearing capacity on the poles, and the flat crossarms do not have much load-bearing capacity.

[0005] Therefore, it is necessary to design a quick-disassembly and quick-assembly lifting device with support to provide a firm mounting point for the lifting work, thereby solving the above problems.

[0006] The existing patent discloses a pole-mounted switch hoisting device (publication number CN218581969U), but this technical solution has the problems of insufficient hoisting stability and insufficient load-bearing capacity. Summary of the invention

[0007] In view of the deficiencies of the prior art, the utility model provides a pole switch hoisting device which can be fixed on an electric pole, and the pole switch is hoisted to a target height by a pulley block and then fixed.

[0008] The utility model is implemented according to the following technical solutions:

[0009] A pole switch hoisting device, comprising:

[0010] Quick-release fasteners, fixed to the pole below the crossarm;

[0011] A rotatable component, fixed together with the quick-release fastener via a connecting piece;

[0012] A supporting component is installed on the rotatable component and can rotate together with the rotatable component, wherein the supporting component has a hanging arm extending outward perpendicularly to the electric pole;

[0013] A sliding component is mounted on the hanging arm, and the sliding component can move on the hanging arm to get closer to or away from the pole;

[0014] The pulley assembly is installed on the sliding component and can move along with the sliding component. The traction rope passes through the pulley assembly to hoist the switch on the pole.

[0015] In some embodiments, the quick release fastener comprises:

[0016] A pair of arc-shaped clamps facing each other are attached to the outer peripheral surface of the pole, and at least one coaxially arranged through hole is respectively provided on the ear plates on both sides of the two arc-shaped clamps;

[0017] At least two bolt and nut assemblies are provided. The bolts pass through the through holes of the two arc-shaped clamps and are then fastened with nuts to fix the two arc-shaped clamps on the pole.

[0018] In some embodiments, the connecting member is composed of two flat plates spaced apart from each other, and the two flat plates are welded together after being fitted to the outer peripheral surface of one of the arc-shaped clamps.

[0019] In some embodiments, the rotatable component includes a sleeve and a T-shaped shaft, and the supporting component includes a cross bar and an oblique rod; the sleeve is installed on the connecting member in a manner parallel to the pole; the T-shaped shaft is inserted into the sleeve, and the two are clearance-fitted; one end of the cross bar is fixed to the outer circumference of the head of the T-shaped shaft located above the sleeve, and the cross bar is used as the lifting arm; one end of the oblique rod is connected to the middle part of the cross bar, and the other end is connected to the outer circumference of the rod of the T-shaped shaft located below the sleeve.

[0020] In some embodiments, the diagonal rod, the cross rod and the T-shaped rotating shaft are all connected together by bolts and nuts.

[0021] In some embodiments, the rotatable component includes a rotating bearing and two threaded columns, and the supporting component includes a cross bar and an inclined rod; the rotating bearing includes an outer ring and an inner ring rotating therein, and the outer ring is installed on the connecting member in a manner parallel to the electric pole; the two threaded columns are fixed on the bottom surface and the top surface of the inner ring in a manner perpendicular to the rotating bearing; one end of the cross bar is sleeved on the upper threaded column, and the cross bar is pressed against the top surface of the inner ring by tightening with a nut, and the cross bar is used as the lifting arm; one end of the inclined rod is connected to the middle part of the cross bar, and the sleeve connected to the other end is sleeved on the lower threaded column, and the sleeve is tightened by a nut.

[0022] In some embodiments, the diagonal rod and the cross rod are connected together by bolts and nuts.

[0023] In some embodiments, the sliding component is a T-shaped sliding block, and a long sliding groove is provided on the bottom surface of the lifting arm. The T-shaped sliding block is hung in the sliding groove and can move in the sliding groove.

[0024] In some embodiments, the pulley assembly comprises:

[0025] A hook, used for hanging on the sliding component;

[0026] The fixed pulley is installed on the hook and can rotate on the hook, and is used to hoist the switch on the column through a traction rope.

[0027] Beneficial effects of the utility model:

[0028] The utility model can provide a firm mounting point, eliminating the need for hanging on a cross arm, has an oblique support, can provide a greater supporting force, and can adjust the length at the same time. When high and low voltages are installed on the same pole, the low voltage four wires can be avoided to meet the needs of different distances from the pole in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0030] In the attached picture:

[0031] Figure 1 It is a preferred embodiment of the pole switch hanging device of the utility model;

[0032] Figure 2It is another preferred embodiment of the pole-mounted switch hanging device of the utility model.

[0033] Figure identification: 1-slideway, 2-T-shaped slider, 3-rotatable component, 4-bolt, 5-arc clamp, 61-diagonal rod, 71-cross rod, 62-diagonal rod, 72-cross rod, 8-hook, 9-fixed pulley, 10-connecting piece.

[0034] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 , Figure 2As shown, the utility model provides a pole-mounted switch hoisting device, comprising a quick-release fastener, a rotatable component, a supporting component, a sliding component and a pulley assembly; the quick-release fastener is fixed on the pole under the crossarm; the rotatable component is fixed to the quick-release fastener through a connecting piece; the supporting component is installed on the rotatable component and can rotate with the rotatable component, and the supporting component has a hoisting arm extending outward perpendicular to the pole; the sliding component is installed on the hoisting arm, and the sliding component can move on the hoisting arm to approach or move away from the pole; the pulley assembly is installed on the sliding component and can move with the sliding component, and the pole-mounted switch is hoisted after the traction rope passes through the pulley assembly.

[0039] The quick-release fastener is further described below.

[0040] like Figure 1 , Figure 2 As shown, the quick-release fastener includes a pair of arc-shaped clamps 5 opposite to each other and at least two bolt-nut assemblies; the pair of arc-shaped clamps 5 opposite to each other are attached to the outer peripheral surface of the pole, and at least one coaxially arranged through hole is respectively provided on the ear plates on both sides of the two arc-shaped clamps 5; the bolts 4 pass through the through holes of the two arc-shaped clamps 5 and are fastened with nuts to fix the two arc-shaped clamps 5 on the pole.

[0041] In a further solution, the connecting member 10 is composed of two flat plates spaced apart from each other, and the two flat plates are welded together after being fitted to the outer peripheral surface of one of the arc-shaped clamps 5 .

[0042] The above-mentioned rotatable component is further described below.

[0043] like Figure 1 As shown, the rotatable component 3 includes a sleeve and a T-shaped shaft, and the supporting component includes a cross bar 71 and an inclined rod 61; the sleeve is installed on the connecting member 10 in a manner parallel to the pole; the T-shaped shaft is inserted into the sleeve, and the two are clearance-matched; one end of the cross bar 71 is fixed on the outer circumference of the head of the T-shaped shaft located above the sleeve, and the cross bar 71 is used as a lifting arm; one end of the inclined rod 61 is connected to the middle part of the cross bar 71, and the other end is connected to the outer circumference of the rod of the T-shaped shaft located below the sleeve.

[0044] In a further solution, the oblique rod 61, the cross rod 71 and the T-shaped rotating shaft are all connected together by means of bolts and nuts.

[0045] The above-mentioned rotatable component is further described below.

[0046] like Figure 2As shown, the rotatable component 3 includes a rotating bearing and two threaded columns, and the supporting component includes a cross bar 72 and an inclined rod 62; the rotating bearing includes an outer ring and an inner ring rotating therein, and the outer ring is installed on the connecting member 10 in a manner parallel to the electric pole; the two threaded columns are fixed on the bottom surface and the top surface of the inner ring in a manner perpendicular to the rotating bearing; one end of the cross bar 72 is sleeved on the upper threaded column, and the cross bar 72 is pressed against the top surface of the inner ring by tightening with a nut, and the cross bar 72 is used as a lifting arm; one end of the inclined rod 62 is connected to the middle part of the cross bar 72, and the sleeve connected to the other end is sleeved on the lower threaded column, and the sleeve is tightened by a nut.

[0047] In a further solution, the diagonal rod 62 and the cross rod 72 are connected together by bolts and nuts.

[0048] The above-mentioned sliding component and pulley assembly are further described below.

[0049] The sliding component is a T-shaped sliding block 2. An elongated sliding groove 1 is provided on the bottom surface of the lifting arm. The T-shaped sliding block 2 is hung in the sliding groove 1 and can move in the sliding groove 1.

[0050] The pulley assembly includes a hook 8 and a fixed pulley 9. The hook 8 is used to be hung on the sliding component; the fixed pulley 9 is installed on the hook 8 and can be rotated on the hook 8 to hoist the switch on the column through a traction rope.

[0051] Usage process: Use bolts and two arc clamps to fix the lifting device on the top of the pole (under the cross arm), and pass the traction rope through the fixed pulley. At this time, according to the required distance between the lifting switch and the pole, move the T-shaped slider in the slide slot to make the fixed pulley close to or away from the pole. If there are debris directly below the lifting point, use the rotatable part to turn the lifting arm to both sides for lifting. After lifting to the appropriate height, use the rotatable part to turn the lifting switch to the target installation angle.

[0052] The utility model can provide a firm mounting point, eliminating the need for hanging on a cross arm, has an oblique support, can provide a greater supporting force, and can adjust the length at the same time. When high and low voltages are installed on the same pole, the low voltage four wires can be avoided to meet the needs of different distances from the pole in different scenarios.

[0053] It should be noted that pole-mounted switches are commonly used in the segmentation and branching of 10kV rural power distribution lines to divide the distribution lines into relatively independent sections, so as to reduce the mutual influence between each section of the line and narrow the scope of the fault when a fault occurs.

[0054] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0055] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0056] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A pole switch hoisting device, characterized in that: include: Quick-release fasteners, fixed to the pole below the crossarm; A rotatable component, fixed together with the quick-release fastener via a connecting piece; A supporting component is installed on the rotatable component and can rotate together with the rotatable component, wherein the supporting component has a hanging arm extending outward perpendicularly to the electric pole; A sliding component is mounted on the hanging arm, and the sliding component can move on the hanging arm to get closer to or away from the pole; The pulley assembly is installed on the sliding component and can move along with the sliding component. The traction rope passes through the pulley assembly to hoist the switch on the pole.

2. A pole-mounted switch hanging device according to claim 1, characterized in that: The quick-release fastener comprises: A pair of arc-shaped clamps facing each other are attached to the outer peripheral surface of the pole, and at least one coaxially arranged through hole is respectively provided on the ear plates on both sides of the two arc-shaped clamps; At least two bolt and nut assemblies are provided. The bolts pass through the through holes of the two arc-shaped clamps and are then fastened with nuts to fix the two arc-shaped clamps on the pole.

3. A pole-mounted switch hanging device according to claim 2, characterized in that: The connecting piece is composed of two flat plates spaced apart from each other, and the two flat plates are welded together after being fitted to the outer peripheral surface of one of the arc-shaped clamps.

4. A pole-mounted switch hanging device according to claim 1, characterized in that: The rotatable component includes a sleeve and a T-shaped rotating shaft, and the supporting component includes a crossbar and an inclined rod; The sleeve is installed on the connecting piece in a manner parallel to the pole; the T-shaped shaft is inserted into the sleeve, and the two are clearance-matched; One end of the crossbar is fixed to the outer peripheral surface of the head of the T-shaped rotating shaft located above the sleeve, and the crossbar serves as the hoisting arm; One end of the oblique rod is connected to the middle part of the cross rod, and the other end is connected to the outer peripheral surface of the rod part of the T-shaped rotating shaft located below the sleeve.

5. A pole-mounted switch hanging device according to claim 4, characterized in that: The diagonal rod, the cross rod and the T-shaped rotating shaft are all connected together by means of bolts and nuts.

6. A pole-mounted switch hanging device according to claim 1, characterized in that: The rotatable component includes a swivel bearing and two threaded columns, and the supporting component includes a crossbar and an inclined rod; The rotary bearing comprises an outer ring and an inner ring rotating therein, and the outer ring is mounted on the connecting member in a manner parallel to the electric pole; The two threaded columns are respectively fixed on the bottom surface and the top surface of the inner ring in a manner perpendicular to the rotary bearing; One end of the crossbar is sleeved on the upper threaded column, and the crossbar is pressed against the top surface of the inner ring by tightening with a nut, and the crossbar serves as the lifting arm; One end of the oblique rod is connected to the middle part of the cross rod, and the sleeve connected to the other end is sleeved on the threaded column at the lower part, and the sleeve is fastened by a nut.

7. A pole-mounted switch hanging device according to claim 6, characterized in that: The diagonal rod and the cross rod are connected together by means of bolts and nuts.

8. The pole-mounted switch hanging device according to claim 1, characterized in that: The sliding component is a T-shaped sliding block, and a long sliding groove is provided on the bottom surface of the lifting arm. The T-shaped sliding block is hung in the sliding groove and can move in the sliding groove.

9. The pole-mounted switch hanging device according to claim 1, characterized in that: The pulley assembly comprises: A hook, used for hanging on the sliding component; The fixed pulley is installed on the hook and can rotate on the hook, and is used to hoist the switch on the column through a traction rope.

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