Insulating bracket device for mounting pole-mounted switch and use method

Abstract

The invention discloses an insulating support device for mounting a pole-mounted switch and a use method, and the insulating support device can form different mounting shapes to adapt to different mounting conditions. The problem that the lifting position and the installation position of the pole-mounted switch cannot be subjected to angle adjustment is solved, and the problem that an insulation support device is too heavy and is difficult to carry is avoided. According to the technical scheme, the device comprises a first hoop, a second hoop, a multifunctional fixing frame and an inclined strut fixing frame; one end of the multifunctional fixing frame is fixedly connected with the first hoop, and the other end is provided with a hinge; one end of the inclined strut bracket is connected with the second hoop, the other end of the inclined strut bracket is connected with the hinge, and the multifunctional fixing frame and the inclined strut bracket can rotate relatively; the first hoop and the second hoop are each composed of two semicircular hoop bodies, grooves are formed in the inner sides of the hoop bodies, and rotating sleeves are arranged in the grooves. The multifunctional fixed support is provided with a winding drum which is fixedly connected with one end of a steel wire rope, the other end of the steel wire rope is connected with a support, and a movable pulley is arranged below.

Description

Technical Field

[0001] The invention relates to the field of electric power engineering, and in particular to an insulating bracket device for installing a switch on a pole and a use method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] A pole-mounted switch refers to a type of safety switch used on utility poles to ensure the safety of electricity use. Its main function is to isolate the high voltage of the circuit. When installing a pole-mounted switch on a 10kV line, it is necessary to maintain a safe distance from the live body. It cannot be installed using a crane like a new line, and it is even more impossible to hang a fall chain or pulley block on the crossarm to pull the switch upward.

[0004] At present, the installation of pole-mounted switches generally adopts single-rope lifting by crane, but the large working surface of the crane is easily affected by the terrain. The crane cannot enter the installation in special terrain such as slopes, and the lifting process of the single-rope lifting by the crane is unstable, which seriously threatens the personal safety of ground workers and affects the normal installation of the pole-mounted switch. In addition, the existing similar structures such as the 1000kV ultra-high voltage AC line tension insulator string insulation lifting bracket are triangular brackets composed of columns, diagonal braces and transverse braces, which are then fixed with clamps. The triangular bracket structure is a fixed structure and cannot adapt to different installation conditions. At the same time, it is impossible to realize the angle change adjustment between the lifting position and the installation position of the pole-mounted switch, and there is also a problem that the electric lifting of the pole-mounted switch cannot be realized. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an insulating bracket device for installing a pole-mounted switch and a method of use, wherein different installation shapes can be formed by relative rotation between a multifunctional fixed bracket and a diagonal support bracket to adapt to different installation conditions; the problem that the lifting position and the installation position of the pole-mounted switch cannot be adjusted at an angle is solved, and the problem that the insulating bracket device is too heavy and thus difficult to carry is avoided.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] In a first aspect, the present invention provides an insulating bracket device for installing a pole-mounted switch, comprising a first clamp, a second clamp, a multifunctional fixing frame and a diagonal bracing fixing frame;

[0008] One end of the multifunctional fixing frame is fixedly connected to the first hoop, and the other end of the multifunctional fixing frame is provided with a hinge; one end of the diagonal support bracket is fixedly connected to the second hoop, and the other end of the diagonal support bracket is connected to the hinge, and the multifunctional fixing bracket and the diagonal support bracket can rotate relative to each other;

[0009] The first clamp is composed of two semicircular clamp bodies, the inner side of the semicircular clamp bodies is provided with a groove, and a rotating sleeve is arranged in the groove. The first clamp has the same structure as the second clamp;

[0010] A hoisting drum is arranged on the multifunctional fixed bracket, the hoisting drum is fixedly connected to one end of a steel wire rope, the other end of the steel wire rope is connected to the multifunctional fixed bracket, a movable pulley is installed on the steel wire rope, and the movable pulley is connected to a hook.

[0011] Furthermore, one end of the two semicircular hoop bodies is hinged, and the other end of the two semicircular hoop bodies is compressed by a fastener.

[0012] Furthermore, the rotating sleeve is composed of a cylindrical roller and a roller bracket, the cylindrical roller is installed in the roller bracket, and the roller bracket is installed in a groove inside the semicircular hoop body.

[0013] Furthermore, the multifunctional fixing bracket and the diagonal bracing bracket are made of square steel pipes, and the outer surfaces of the multifunctional fixing bracket and the diagonal bracing bracket are provided with a ceramic insulating layer.

[0014] Furthermore, the multifunctional fixing bracket is also provided with an electric motor, and the electric motor is located between the first clamping hoop and the winch drum.

[0015] Furthermore, a first pulley is arranged on the main shaft of the motor, a second pulley is arranged on one end of the hoisting drum, and the diameter of the first pulley is smaller than the size of the second pulley.

[0016] Furthermore, the first pulley and the second pulley are driven by belts.

[0017] Furthermore, an elastic locking piece is provided at the opening of the hook, and the elastic locking piece is in a normally closed state.

[0018] Furthermore, the fasteners are bolts and dovetail nuts.

[0019] In a second aspect, the present invention provides a method for using an insulating bracket device for installing a pole-mounted switch, comprising the following steps:

[0020] S1: Install the bracket device: The aerial workers carry the entire device to the required height, open the dovetail nuts of the first clamp and the second clamp, put the first clamp and the second clamp on the wire rod, and manually tighten the dovetail nuts to firmly install the first clamp and the second clamp on the wire rod. After the installation is completed, the motor is installed on the multi-functional fixed bracket, and the belt is installed on the first pulley and the second pulley, and then the motor is powered on;

[0021] S2: Hoisting the pole switch: control the motor through the switch, use the switch to control the motor to reverse, the wire rope is loosened, and the ground operator hangs the pole switch on the hook. The aerial operator uses the switch to control the motor to rotate forward, the winch drum tightens the wire rope, and the movable pulley drives the pole switch to rise until the pole switch reaches the specified height. The aerial operator pushes the multi-functional fixed bracket winding rod to rotate according to the installation position until it rotates to the installation position, loosens the wire rope, and puts the pole switch in place and installs it.

[0022] The beneficial effects of the present invention are as follows:

[0023] The multifunctional fixed bracket and the diagonal support bracket of the present invention are connected by a hinge, so that the multifunctional fixed bracket and the diagonal support bracket can rotate relative to each other, adapt to different installation conditions and form a triangular stable structure, thereby ensuring the stability and reliability of the installation; a rotating sleeve is provided on the inner side of the first clamp and the second clamp, so that the clamp can not only make circular motion around the wire rod, but also adjust the angle according to the lifting position and installation position of the switch on the column, and prevent the multifunctional fixed bracket and the diagonal support bracket from sliding downward at a fixed height position, thereby ensuring the accuracy and stability of the installation position.

[0024] The present invention also provides a first pulley on the main shaft of the motor and a second pulley on the winch drum, and the diameter of the first pulley is smaller than the size of the second pulley. The first pulley and the second pulley are transmitted by a belt, and the large pulley of the winch drum is driven by the small pulley on the motor to achieve the purpose of reducing speed and increasing torque. Therefore, a small and micro motor can be selected to reduce the difficulty of high-altitude workers carrying the insulating bracket device. At the same time, the design of the movable pulley, the winch drum and the wire rope is used to reduce the torque requirement for the second pulley, so that the requirement for the motor is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of the insulating support device of the present invention;

[0027] Figure 2 This is a schematic diagram of the clamp structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the rotating sleeve of the present invention.

[0029] In the figure, 1 is a multifunctional fixing bracket; 2 is a first clamp; 3 is a dovetail nut; 4 is a second clamp; 5 is a diagonal support bracket; 6 is a first pulley; 7 is a hinge; 8 is a second pulley; 9 is a winch drum; 10 is a belt; 11 is an electric motor; 12 is a wire rope; 13 is a movable pulley; 14 is a hook; 15 is a roller bracket; and 16 is a cylindrical roller. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0032] Embodiment 1

[0033] In a typical embodiment of the present invention, reference is made to Figure 1-3 As shown, an insulating bracket device for installing a pole switch comprises a first clamp 2, a second clamp 4, a multifunctional fixing bracket and a diagonal bracing fixing bracket; one end of the multifunctional fixing bracket is fixedly connected to the first clamp 2, and the other end of the multifunctional fixing bracket is provided with a hinge 7; one end of the diagonal bracing bracket 5 is fixedly connected to the second clamp 4, and the other end of the diagonal bracing bracket 5 is connected to the hinge 7; the multifunctional fixing bracket 1 and the diagonal bracing bracket 5 can rotate relative to each other, and can adapt to different installation conditions. A triangular stable structure is formed between the diagonal support bracket 5 and the wire pole; a winch drum 9 is provided on the multifunctional fixed bracket 1, and the winch drum 9 is fixedly connected to one end of the wire rope 12 and can wind the wire rope 12, and the other end of the wire rope 12 is connected to the multifunctional fixed bracket 1, and a movable pulley 13 is provided under the steel pipe multifunctional fixed bracket 1, and the wire rope 12 passes through the movable pulley 13. When the winch drum 9 rotates, the wire rope 12 will be wound around the winch drum 9, and the movable pulley 13 rises to transport the column switch to the designated position.

[0034] The first hoop 2 is composed of two semicircular hoop bodies, one end of the two semicircular hoop bodies is hinged, and the other end is closed and fastened by a bolt, the bolt is hinged to the end of one of the semicircular hoop bodies, and a groove is provided at the end of the other semicircular hoop body for clamping the bolt, and fastened by a dovetail nut 3; a groove is provided on the inner side of the semicircular hoop body, and a rotating sleeve is arranged in the groove, and the rotating sleeve is composed of a cylindrical roller 16 and a roller bracket 15, the cylindrical roller 16 is installed in the roller bracket 15, and the rotating sleeve is installed in the groove on the inner side of the semicircular hoop body. When the first hoop 2 is installed on the wire rod, the cylindrical roller 16 contacts the wire rod, so that the first hoop 2 can make a circular motion around the wire rod. At the same time, since the roller is a cylindrical roller 16, it can only make a circular motion, but not a vertical motion, and the multifunctional fixed bracket 1 can be adjusted in angle according to the actual installation position of the switch on the column; therefore, while ensuring that the first hoop 2 can make a circular motion, it can also ensure that the first hoop 2 will not slide downward at a fixed height. The first clamp 2 has the same structure as the second clamp 4 and will not be described in detail herein. The second clamp 4 can also perform circular motion relative to the wire rod.

[0035] The multifunctional fixed bracket 1 and the diagonal support bracket 5 are made of square steel pipes. One end of the multifunctional fixed bracket 1 is connected to the first clamp 2 by welding to form an integral structure, and the other end is welded with a hinge 7. The hinge 7 is also connected to one end of the diagonal support bracket 5 by welding. The other end of the diagonal support bracket 5 is welded with a second clamp 4. The outer surfaces of the multifunctional fixed bracket 1 and the diagonal support bracket 5 are both provided with a ceramic insulating layer to avoid the problem of discharge of the live line to the hardware due to insufficient safety distance, to ensure the personal safety of the workers working at high altitudes, and to ensure the normal installation of the pole switch. In addition, since the multifunctional fixed bracket 1 is connected to the diagonal support bracket 5 by the hinge 7, the installation conditions of the first clamp 2 and the second clamp 4 are not restricted. They can be installed on the same wire pole to form a triangular structure, or they can be installed on two wire poles parallel to each other. When installed on two wire poles, the multifunctional fixed bracket 1 cannot rotate.

[0036] The multifunctional fixed bracket 1 is provided with a winch drum 9 for retracting and releasing a steel wire rope 12. One end of the steel wire rope 12 is connected to the winch drum 9, and the other end is fixedly connected to the multifunctional fixed bracket 1. A sling is connected to the bottom of the multifunctional fixed bracket 1 through the steel wire rope 12. The sling includes a movable pulley 13 and a hook 14. An elastic locking piece is provided at the opening of the hook 14. The elastic locking piece is in a normally closed state. The steel wire rope 12 passes through the movable pulley 13. When the winch drum 9 is working, the movable pulley 13 will rise or fall driven by the steel wire rope 12. The multifunctional fixed bracket 1 is also provided with a motor 11. The motor 11 is located between the first hoop 2 and the winch drum 9. There is a first pulley 6, and a second pulley 8 is arranged on the hoisting drum 9. The diameter of the first pulley 6 is smaller than the size of the second pulley 8. The first pulley 6 and the second pulley 8 are transmitted through a belt 10. Since the multifunctional fixed bracket 1 is installed on the high-altitude wire pole, the motor 11 is not easy to be too large, otherwise it will cause transportation difficulties. Therefore, the motor 11 uses a small and lightweight motor 11, and the large belt 10 wheel of the hoisting drum 9 is driven by the small belt 10 wheel on the motor 11 to achieve the purpose of reducing speed and increasing torque, and at the same time further improve the transportation capacity of the column switch. The torque requirement for the second pulley 8 is reduced by the form of a movable pulley 13, so that the requirement for the motor 11 is further reduced.

[0037] Embodiment 2

[0038] The method of use includes the following steps:

[0039] S1: Installing the bracket device: The aerial workers carry the entire device to the required height, open the dovetail nuts 3 of the first clamp 2 and the second clamp 4, put the first clamp 2 and the second clamp 4 on the wire rod, and manually tighten the dovetail nuts 3 to make the first clamp 2 and the second clamp 4 firmly installed on the wire rod. After the installation is completed, the motor 11 is installed on the multifunctional fixed bracket 1, and the belt 10 is installed on the first pulley 6 and the second pulley 8, and then the motor 11 is powered on;

[0040] S2: Hoisting the pole switch: Control the motor 11 through the switch, use the switch to control the motor 11 to reverse, the wire rope 12 is loosened, and the ground operator hangs the pole switch on the hook 14. A high-altitude operator uses the switch to control the motor 11 to rotate forward, the winch drum 9 tightens the wire rope 12, and the movable pulley 13 drives the pole switch to rise until the pole switch reaches the specified height. The high-altitude operator pushes the multifunctional fixed bracket 1 to rotate the winding rod according to the installation position until it rotates to the installation position, loosens the wire rope 12, and installs the pole switch in place. Since the outer surfaces of the multifunctional fixed bracket 1 and the diagonal support bracket 5 are both provided with a ceramic insulating layer, the problem of discharge of the live line to the hardware due to insufficient safety distance can be effectively avoided during the rotation of the multifunctional fixed bracket 1 and the diagonal support bracket 5, ensuring the personal safety of the high-altitude operators and the normal installation of the pole switch.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An insulating bracket device for installing a pole switch, It is characterized in that It includes a first holding hoop, a second holding hoop, a multifunctional fixing frame and a diagonal bracing fixing frame; One end of the multifunctional fixing frame is fixedly connected to the first hoop, and the other end of the multifunctional fixing frame is provided with a hinge; one end of the diagonal support bracket is fixedly connected to the second hoop, and the other end of the diagonal support bracket is connected to the hinge, and the multifunctional fixing bracket and the diagonal support bracket can rotate relative to each other; The first clamp is composed of two semicircular clamp bodies, the inner side of the semicircular clamp bodies is provided with a groove, and a rotating sleeve is arranged in the groove. The first clamp has the same structure as the second clamp; A hoisting drum is arranged on the multifunctional fixed bracket, the hoisting drum is fixedly connected to one end of a steel wire rope, the other end of the steel wire rope is connected to the multifunctional fixed bracket, a movable pulley is installed on the steel wire rope, and the movable pulley is connected to a hook.

2. An insulating bracket device for installing a pole switch according to claim 1, It is characterized in that One ends of the two semicircular hoop bodies are hinged, and the other ends of the two semicircular hoop bodies are compressed by fasteners.

3. An insulating bracket device for installing a pole switch according to claim 1, It is characterized in that The rotating sleeve is composed of a cylindrical roller and a roller bracket. The cylindrical roller is installed in the roller bracket, and the roller bracket is installed in a groove inside the semicircular hoop body.

4. An insulating bracket device for installing a pole switch according to claim 1, It is characterized in that The multifunctional fixing bracket and the diagonal bracing bracket are made of square steel pipes, and the outer surfaces of the multifunctional fixing bracket and the diagonal bracing bracket are both provided with ceramic insulating layers.

5. An insulating bracket device for installing a pole switch according to claim 1, It is characterized in that The multifunctional fixing bracket is also provided with an electric motor, and the electric motor is located between the first clamping hoop and the winch drum.

6. An insulating bracket device for installing a pole switch according to claim 1, It is characterized in that A first belt pulley is arranged on the main shaft of the motor, and a second belt pulley is arranged at one end of the hoisting drum. The diameter of the first belt pulley is smaller than the size of the second belt pulley.

7. An insulating bracket device for installing a pole switch according to claim 1, It is characterized in that The first pulley and the second pulley are driven by belts.

8. An insulating bracket device for installing a pole switch as claimed in claim 1, It is characterized in that An elastic locking piece is arranged at the opening of the hook, and the elastic locking piece is in a normally closed state.

9. An insulating bracket device for installing a pole switch as claimed in claim 2, It is characterized in that The fasteners are bolts and dovetail nuts.

10. A method for using an insulating bracket device for installing a pole-mounted switch according to any one of claims 1 to 9, It is characterized in that The steps include: S1: Install the bracket device: The aerial workers carry the entire device to the required height, open the dovetail nuts of the first clamp and the second clamp, put the first clamp and the second clamp on the wire rod, and manually tighten the dovetail nuts to firmly install the first clamp and the second clamp on the wire rod. After the installation is completed, the motor is installed on the multi-functional fixed bracket, and the belt is installed on the first pulley and the second pulley, and then the motor is powered on; S2: Hoisting the pole switch: control the motor through the switch, use the switch to control the motor to reverse, the wire rope is loosened, and the ground operator hangs the pole switch on the hook. The aerial operator uses the switch to control the motor to rotate forward, the winch drum tightens the wire rope, and the movable pulley drives the pole switch to rise until the pole switch reaches the specified height. The aerial operator pushes the multi-functional fixed bracket winding rod to rotate according to the installation position until it rotates to the installation position, loosens the wire rope, and puts the pole switch in place and installs it.

Images