CN111636751A - Electric power strain cross arm - Google Patents
Electric power strain cross arm Download PDFInfo
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- CN111636751A CN111636751A CN202010534794.5A CN202010534794A CN111636751A CN 111636751 A CN111636751 A CN 111636751A CN 202010534794 A CN202010534794 A CN 202010534794A CN 111636751 A CN111636751 A CN 111636751A
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- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000012212 insulator Substances 0.000 claims description 21
- 239000012211 strain insulator Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 description 7
- 230000002411 adverse Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000004020 conductor Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
Abstract
The invention belongs to the technical field of power equipment, and particularly relates to an electric tension cross arm which comprises two parallel brackets, wherein the two brackets are fixedly connected through a connecting rod; the bracket consists of a vertical plate and a horizontal plate which are fixedly connected together; the vertical plate is provided with a fixing mechanism, and the horizontal plate is provided with a tensioning mechanism. The tensioning mechanism comprises a sliding block, a supporting plate, a supporting spring, a mounting column, a connecting rod and a mounting seat; the sliding block is arranged on the top surface of the horizontal plate in a sliding manner; a supporting plate is arranged on the top surface of the horizontal plate, and a supporting spring is arranged between the supporting plate and the sliding block; the top of the sliding block is matched with a mounting column in a rotating mode, a connecting rod is fixedly mounted at the top of the mounting column, and a mounting seat is fixedly mounted at the end of the connecting rod. The electric tension-resistant cross arm avoids the situation that the cross arm shakes up and down, and can automatically reset after horizontally rotating; when the wire is heated and elongated, the wire can be ensured to be always in a tensioning state.
Description
Technical Field
The invention belongs to the technical field of power equipment, and particularly relates to an electric tension cross arm.
Background
The angle iron transversely fixed on the top of the telegraph pole is used for mounting insulators and hardware fittings to support a conducting wire and a lightning conductor and keep a certain safety distance according to regulations, and is an important component in the pole tower. The cross arm can be divided into a straight cross arm, a corner cross arm and a strain cross arm according to the purpose. The tension cross arm bears the tension difference of the lead besides the vertical and horizontal loads of the lead. The existing tension cross arm has the following problems in the use process: (1) the cross arm and the telegraph pole cannot be stably connected, so that the cross arm is easy to horizontally rotate or vertically shake under the action of wind power, cannot automatically reset and has adverse effects on the safety of a power transmission line; (2) in areas with high temperature in summer, the extension amount generated after the wires are heated is large, so that the insulators on the cross arms cannot effectively tension the wires, and the safety of the power transmission line is also adversely affected.
Disclosure of Invention
Technical problem to be solved
The invention provides an electric tension cross arm, aiming at solving the following problems in the use process of the existing electric tension cross arm: (1) the cross arm and the telegraph pole cannot be stably connected, so that the cross arm is easy to horizontally rotate or vertically shake under the action of wind power, cannot automatically reset and has adverse effects on the safety of a power transmission line; (2) in areas with high temperature in summer, the extension amount generated after the wires are heated is large, so that the insulators on the cross arms cannot effectively tension the wires, and the safety of the power transmission line is also adversely affected.
(II) technical scheme
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an electric power strain insulator cross arm, includes two supports that are parallel to each other, and two supports pass through connecting rod fixed connection. The bracket is composed of a vertical plate and a horizontal plate which are fixedly connected together. The vertical plate is provided with a fixing mechanism, and the horizontal plate is provided with a tensioning mechanism. The electric tension cross arm is integrally fixed on the telegraph pole through the fixing mechanism, the insulator is installed on the tensioning mechanism, and the conducting wire fixed on the insulator is tensioned through the tensioning mechanism.
The fixing mechanism comprises a door-shaped frame, a screw rod, a clamping block, a first sliding plate, a pressing block, a second sliding plate, a first return spring and a threaded rod. The door-shaped frame is in a horizontal state and is in horizontal sliding fit with the vertical plate, and two end parts of the door-shaped frame are positioned between the two brackets. The lead screw horizontally penetrates through the door-shaped frame and the vertical plate, and the lead screw is in rotating fit with the door-shaped frame through threads. A clip is mounted on each end of the gantry. The inner side surface of the clamping block is arc-shaped and matched with the surface of the telegraph pole. The inner side surface of the clamping block is provided with a horizontal arc-shaped groove, and the top surface and the bottom surface of the arc-shaped groove are respectively provided with a horizontal first sliding plate in a sliding way along the circumferential direction of the inner side surface of the clamping block. A pressing block is arranged between the two first sliding plates in a sliding mode along the inner side surface of the clamping block in the radial direction. The inner side surface of the pressing block is arc-shaped and matched with the surface of the telegraph pole. And two end surfaces of the arc-shaped groove are provided with vertical second sliding plates in a sliding manner along the radial direction of the inner side surface of the clamping block. A first return spring is arranged between the second sliding plate and the end face of the pressing block. The outer side surface of the clamping block is horizontally and rotatably provided with a threaded rod along the inner side surface of the clamping block in the radial direction, and the end part of the threaded rod is in contact with the outer side surface of the pressing block. The two portal frames are driven to move in opposite directions by rotating the screw rod until the inner side surfaces of the clamping blocks contact the surface of the telegraph pole. The pressing block is pushed to move along the radial direction of the telegraph pole by rotating the threaded rod until the inner side face of the pressing block abuts against the surface of the telegraph pole, and therefore the electric tension-resistant cross arm is integrally fixed on the telegraph pole. The pressing block drives the first return spring and the second sliding plate to move synchronously in the radial moving process of the telegraph pole. When the electric tension cross arm is influenced by wind power, the bracket rotates to drive the portal frame, the screw rod, the clamping block and the first sliding plate to synchronously rotate, and the first return spring is deformed; when the wind power disappears, the first return spring reversely rotates to return to the original position under the action of the elastic force of the first return spring.
The tensioning mechanism comprises a sliding block, a supporting plate, a supporting spring, a mounting column, a connecting rod and a mounting seat. The slide block is horizontally arranged on the top surface of the horizontal plate in a sliding manner along the direction of the lead. The top surface of the horizontal plate is vertically provided with a supporting plate, and a supporting spring is arranged between the supporting plate and the sliding block along the direction of a lead. The top of the sliding block is rotatably matched with a vertical mounting column, a connecting rod is horizontally and fixedly mounted at the top of the mounting column, and a mounting seat for connecting an insulator is fixedly mounted at the end part of the connecting rod. After the lead is fixed on the insulator, the slide block is pushed to horizontally move along the direction of the lead by the elastic force of the supporting spring, so that the lead is tensioned. If the slider slides to the innermost back, the wire still can't the tensioning, can rotate the erection column, drives connecting rod, mount pad and insulator horizontal rotation, carries out further tensioning to the wire.
As a preferred technical scheme of the invention, a plurality of vertical rubber strips are uniformly arranged on the inner side surface of the pressing block along the circumferential direction of the pressing block, so that the friction force between the inner side surface of the pressing block and the surface of the telegraph pole is increased, and the fixing effect is improved.
As a preferred technical scheme of the invention, the tensioning mechanism further comprises a torsion spring, a limiting block, a second return spring and a push rod. The outer side surface of the mounting column is fixedly sleeved with a torsion spring, and the bottom end of the torsion spring is connected to the top surface of the sliding block. The mounting column is provided with a circular groove along the radial direction on the outer side surface below the top surface of the sliding block. The slide block is provided with a through hole along the sliding direction of the slide block. The height of the through hole is consistent with that of the circular groove. A limiting block is in sliding fit in the circular groove, and a second reset spring is installed between the end face of the limiting block and the end face of the circular groove. The top surface of the horizontal plate is fixedly provided with a horizontal push rod through a connecting plate, and the push rod is superposed with the axis of the circular groove. In an initial state, the torsion spring applies a rotating force to the mounting column; one part of the limiting block is positioned in the circular groove, and the other part of the limiting block is positioned in the through hole, so that the mounting column is limited and cannot rotate. When the sliding block slides to the innermost end under the action of the elastic force of the supporting spring, the push rod is inserted into the through hole, the limiting block is completely pushed into the circular groove from the through hole, and the limiting block compresses the second return spring. The limiting block no longer plays a limiting role in the mounting column, the mounting column rotates under the elastic force of the torsion spring, and the connecting rod, the mounting seat and the insulator are driven to horizontally rotate until the wire reaches a tensioning state.
As a preferred technical scheme of the invention, a first limiting plate is vertically and fixedly arranged on the top surface of a clamping block arranged on one portal frame, and a second limiting plate is vertically and fixedly arranged on the top surface of a clamping block arranged on the other portal frame. The first limiting plate and the second limiting plate are tangent to the surface of the telegraph pole, and the end parts of the first limiting plate and the second limiting plate are butted together. After the fixture block medial surface contacted the wire pole surface, the tip butt joint of first limiting plate and second limiting plate was in the same place, supported through first limiting plate and second limiting plate and pressed on the wire pole surface, further avoided electric power strain insulator cross arm to take place to rock.
As a preferred technical scheme of the invention, the end part of the second limit plate is fixedly connected with a vertical inserting plate, and two sides of the inserting plate are provided with elastic limit pieces. The end face of the first limiting plate is provided with a slot matched with the inserting plate, and two sides of the slot are provided with accommodating cavities which penetrate through the first limiting plate and are matched with the limiting pieces. After the tip butt joint of first limiting plate and second limiting plate was in the same place, the picture peg inserts in the slot, and spacing piece gets into and holds the intracavity to together first limiting plate and second limiting plate are fixed, further improved the stable connection between electric power strain insulator cross arm and the wire pole.
(III) advantageous effects
The invention has at least the following beneficial effects:
(1) the invention solves the following problems of the existing electric power strain cross arm: the cross arm and the telegraph pole cannot be stably connected, so that the cross arm is easy to horizontally rotate or vertically shake under the action of wind power, cannot automatically reset and has adverse effects on the safety of a power transmission line; in areas with high temperature in summer, the extension amount generated after the wires are heated is large, so that the insulators on the cross arms cannot effectively tension the wires, and the safety of the power transmission line is also adversely affected.
(2) According to the electric tension-resistant cross arm, the radial pressing force is applied to the telegraph pole through the pressing block, the connection stability between the whole electric tension-resistant cross arm and the telegraph pole is improved, and the situation that the cross arm shakes up and down under the action of wind power is avoided under the cooperation of the first limiting plate and the second limiting plate; the electric tension cross arm can automatically reset under the elastic force of the first reset spring after horizontally rotating under the action of wind power, so that the adverse effect on the safety of a power transmission line is avoided.
(3) The electric tension-resistant cross arm can stretch the lead along the lead direction under the condition that the lead is heated and elongated at higher temperature, so as to keep the lead in a tensioned state; when the extension amount of the wire is too large, the tensioning mechanism can drive the insulator mounted on the tensioning mechanism to horizontally rotate, so that the wire is further stretched, and the wire is ensured to be always in a tensioning state.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic perspective view of an electric tension cross arm according to an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of a power tension cross arm of the present invention;
FIG. 3 is a top view of an embodiment of a power tension cross arm;
fig. 4 is an enlarged schematic view of a power tension cross arm a according to an embodiment of the invention;
fig. 5 is an enlarged schematic view of a power tension cross arm B in the embodiment of the invention;
fig. 6 is a schematic view of the internal structures of the first limiting plate and the second limiting plate of the electric tension cross arm in the embodiment of the present invention.
In the figure: the device comprises a support 1, a connecting rod 2, a fixing mechanism 3, a door-shaped frame 31, a lead screw 32, a clamping block 33, a first sliding plate 34, a pressing block 35, a second sliding plate 36, a first return spring 37, a threaded rod 38, a rubber strip 39, a tensioning mechanism 4, a sliding block 41, a supporting plate 42, a supporting spring 43, a mounting column 44, a connecting rod 45, a mounting seat 46, a torsion spring 47, a limiting block 48, a second return spring 49, a push rod 410, a first limiting plate 5, a second limiting plate 6, an inserting plate 7, a limiting plate 8, a slot 9 and an accommodating cavity 10.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 6, the present embodiment provides an electric tension cross arm, which includes two parallel brackets 1, and the two brackets 1 are fixedly connected by a connecting rod 2. The bracket 1 is composed of a vertical plate 11 and a horizontal plate 12 which are fixedly connected together. The vertical plate 11 is provided with a fixing mechanism 3, and the horizontal plate 12 is provided with a tensioning mechanism 4. The electric tension cross arm is integrally fixed on the telegraph pole through the fixing mechanism 3, the insulator is installed on the tensioning mechanism 4, and the wire fixed on the insulator is tensioned through the tensioning mechanism 4.
The fixing mechanism 3 comprises a portal frame 31, a lead screw 32, a clamping block 33, a first sliding plate 34, a pressing block 35, a second sliding plate 36, a first return spring 37, a threaded rod 38 and a rubber strip 39. The door-shaped frame 31 is in a horizontal state and is in horizontal sliding fit with the vertical plate 11, and two end parts of the door-shaped frame 31 are positioned between the two brackets 1. The screw rod 32 horizontally penetrates through the door-shaped frame 31 and the vertical plate 11, and the screw rod 32 is in threaded rotation fit with the door-shaped frame 31. A latch 33 is mounted to each end of the gate frame 31. The inside surface of the block 33 is curved to match the surface of the pole. The inner side surface of the clamping block 33 is provided with a horizontal arc-shaped groove, and the top surface and the bottom surface of the arc-shaped groove are respectively provided with a horizontal first sliding plate 34 in a sliding way along the circumferential direction of the inner side surface of the clamping block 33. A pressing block 35 is arranged between the two first sliding plates 34 along the radial direction of the inner side surface of the clamping block 33 in a sliding mode. The inner side of the compression block 35 is in the shape of an arc that mates with the pole surface. Two end surfaces of the arc-shaped groove are provided with a vertical second sliding plate 36 in a sliding way along the radial direction of the inner side surface of the clamping block 33. A first return spring 37 is arranged between the second sliding plate 36 and the end surface of the pressing block 35. The outer side surface of the clamping block 33 is horizontally and rotatably provided with a threaded rod 38 along the radial direction of the inner side surface, and the end part of the threaded rod 38 is contacted with the outer side surface of the pressing block 35. The vertical rubber strips 39 of a plurality of are evenly installed along its circumference to the medial surface of compact heap 35 to increase the frictional force on medial surface and the wire pole surface of compact heap 35, improve fixed effect. The two portal frames 31 are driven to move towards each other by rotating the screw rod 32 until the inner side surfaces of the clamping blocks 33 contact the surface of the telegraph pole. The pressing block 35 is pushed to move along the radial direction of the utility pole by rotating the threaded rod 38 until the inner side surface of the pressing block 35 is pressed against the surface of the utility pole, so that the electric tension-resistant cross arm is integrally fixed on the utility pole. The pressing block 35 drives the first return spring 37 and the second sliding plate 36 to move synchronously during the radial movement of the utility pole. When the electric tension cross arm is influenced by wind power, the bracket 1 rotates to drive the door-shaped frame 31, the screw rod 32, the fixture block 33 and the first sliding plate 34 to synchronously rotate, and the first return spring 37 is deformed; after the wind force disappears, the first return spring 37 is reversely rotated and restored to the original position by the elastic force of the first return spring 37.
The tensioning mechanism 4 comprises a sliding block 41, a supporting plate 42, a supporting spring 43, a mounting column 44, a connecting rod 45, a mounting seat 46, a torsion spring 47, a limiting block 48, a second return spring 49 and a push rod 410. The slider 41 is horizontally slidably mounted on the top surface of the horizontal plate 12 in the direction of the wire. The top surface of the horizontal plate 12 is vertically provided with a support plate 42, and a support spring 43 is arranged between the support plate 42 and the slide block 41 along the wire direction. The top of the sliding block 41 is rotatably matched with a vertical mounting column 44, the top of the mounting column 44 is horizontally and fixedly provided with a connecting rod 45, and the end part of the connecting rod 45 is fixedly provided with a mounting seat 46 for connecting an insulator. In the present embodiment, the connection and fixation of the mounting seat 46 and the insulator is a conventional one. The outer side surface of the mounting column 44 is fixedly sleeved with a torsion spring 47, and the bottom end of the torsion spring 47 is connected to the top surface of the sliding block 41. The mounting post 44 is provided with a circular groove along the radial direction on the outer side surface below the top surface of the slider 41. The slider 41 is provided with a through hole along the sliding direction of the slider 41. The height of the through hole is consistent with that of the circular groove. A limiting block 48 is in sliding fit in the circular groove, and a second return spring 49 is arranged between the end face of the limiting block 48 and the end face of the circular groove. The top surface of the horizontal plate 12 is fixedly provided with a horizontal push rod 410 through a connecting plate, and the push rod 410 is superposed with the axis of the circular groove. After the conductor is fixed on the insulator, the slider 41 is pushed by the elastic force of the supporting spring 43 to move horizontally along the direction of the conductor, so that the conductor is tensioned. In the initial state, the torsion spring 47 applies a rotational force to the mounting post 44; the stop block 48 is partially located in the circular groove and partially located in the through hole, so as to limit the mounting post 44 and prevent the mounting post 44 from rotating. When the slider 41 slides to the innermost end under the elastic force of the supporting spring 43, the push rod 410 is inserted into the through hole and pushes the stopper 48 into the circular groove from the through hole, and the stopper 48 compresses the second return spring 49. The limiting block 48 no longer limits the mounting post 44, and the mounting post 44 rotates under the elastic force of the torsion spring 47 and drives the connecting rod 45, the mounting seat 46 and the insulator to horizontally rotate until the conductor reaches a tensioned state.
In this embodiment, the first limiting plate 5 is vertically and fixedly mounted on the top surface of the latch 33 mounted on one of the door frames 31, and the second limiting plate 6 is vertically and fixedly mounted on the top surface of the latch 33 mounted on the other door frame 31. The first and second limiting plates 5, 6 are tangent to the pole surface and the ends of the first and second limiting plates 5, 6 are butted together. After the inside surface of the clamping block 33 contacted the telegraph pole surface, the end parts of the first limiting plate 5 and the second limiting plate 6 are butted together, and are pressed on the surface of the telegraph pole through the first limiting plate 5 and the second limiting plate 6, so that the electric tension cross arm is further prevented from shaking. The end part of the second limiting plate 6 is fixedly connected with a vertical inserting plate 7, and two sides of the inserting plate 7 are provided with elastic limiting pieces 8. Offer the slot 9 of mutually supporting with picture peg 7 on the terminal surface of first limiting plate 5, slot 9 both sides are offered and are run through first limiting plate 5 and hold the chamber 10 with spacing piece 8 mutually supporting. After the end parts of the first limiting plate 5 and the second limiting plate 6 are butted together, the inserting plate 7 is inserted into the inserting groove 9, and the limiting sheet 8 enters the accommodating cavity 10, so that the first limiting plate 5 and the second limiting plate 6 are fixed together, and the stable connection between the electric tension cross arm and the telegraph pole is further improved.
The specific use method of the electric power strain cross arm in the embodiment is as follows:
the part between the two brackets 1 is sleeved on the telegraph pole, so that the two brackets 1 are in a horizontal state. The two portal frames 31 are driven to move towards each other by rotating the screw rod 32 until the inner side surfaces of the clamping blocks 33 contact the surface of the telegraph pole. The pressing block 35 is pushed to move along the radial direction of the utility pole by rotating the threaded rod 38 until the inner side surface of the pressing block 35 is pressed against the surface of the utility pole, so that the electric tension-resistant cross arm is integrally fixed on the utility pole. After the inner side surface of the clamping block 33 contacts the surface of the telegraph pole, the end parts of the first limiting plate 5 and the second limiting plate 6 are butted together, the inserting plate 7 is inserted into the inserting groove 9, and the limiting piece 8 enters the accommodating cavity 10, so that the first limiting plate 5 and the second limiting plate 6 are fixed together. The insulator is mounted to the mounting block 46 and the conductor is secured to the insulator. The slider 41 is pushed by the elastic force of the supporting spring 43 to move horizontally in the direction of the wire, and a tension is applied to the wire. When the sliding block 41 slides to the innermost end, the push rod 410 is inserted into the through hole, the limiting block 48 is completely pushed into the circular groove from the through hole, the limiting block 48 compresses the second return spring 49, the mounting column 44 rotates under the elastic force of the torsion spring 47, and the connecting rod 45, the mounting seat 46 and the insulator are driven to horizontally rotate until the wire reaches the tensioning state.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an electric power strain insulator cross arm which characterized in that: the electric tension cross arm comprises two parallel brackets (1), and the two brackets (1) are fixedly connected through a connecting rod (2); the bracket (1) consists of a vertical plate (11) and a horizontal plate (12) which are fixedly connected together; a fixing mechanism (3) is arranged on the vertical plate (11), and a tensioning mechanism (4) is arranged on the horizontal plate (12);
the fixing mechanism (3) comprises a door-shaped frame (31), a lead screw (32), a clamping block (33), a first sliding plate (34), a pressing block (35), a second sliding plate (36), a first return spring (37) and a threaded rod (38); the door-shaped frame (31) is in a horizontal state and is in horizontal sliding fit with the vertical plate (11), and two end parts of the door-shaped frame (31) are positioned between the two brackets (1); the screw rod (32) horizontally penetrates through the door-shaped frame (31) and the vertical plate (11), and the screw rod (32) is in rotating fit with the door-shaped frame (31) through threads; a fixture block (33) is arranged at each end part of the portal frame (31); the inner side surface of the clamping block (33) is arc-shaped and matched with the surface of the telegraph pole; a horizontal arc-shaped groove is formed in the inner side surface of the clamping block (33), and a horizontal first sliding plate (34) is respectively installed on the top surface and the bottom surface of the arc-shaped groove in a sliding mode along the circumferential direction of the inner side surface of the clamping block (33); a pressing block (35) is arranged between the two first sliding plates (34) in a sliding manner along the radial direction of the inner side surface of the clamping block (33); the inner side surface of the pressing block (35) is arc-shaped and matched with the surface of the telegraph pole; two end surfaces of the arc-shaped groove are provided with a vertical second sliding plate (36) along the radial direction of the inner side surface of the clamping block (33) in a sliding way; a first return spring (37) is arranged between the second sliding plate (36) and the end surface of the pressing block (35); a threaded rod (38) is horizontally and rotatably arranged on the outer side surface of the clamping block (33) along the radial direction of the inner side surface of the clamping block, and the end part of the threaded rod (38) is contacted with the outer side surface of the pressing block (35);
the tensioning mechanism (4) comprises a sliding block (41), a supporting plate (42), a supporting spring (43), a mounting column (44), a connecting rod (45) and a mounting seat (46); the sliding block (41) is horizontally arranged on the top surface of the horizontal plate (12) in a sliding manner along the direction of the lead; a supporting plate (42) is vertically arranged on the top surface of the horizontal plate (12), and a supporting spring (43) is arranged between the supporting plate (42) and the sliding block (41) along the wire direction; the top of the sliding block (41) is rotatably matched with a vertical mounting column (44), a connecting rod (45) is horizontally and fixedly mounted at the top of the mounting column (44), and a mounting seat (46) used for connecting an insulator is fixedly mounted at the end part of the connecting rod (45).
2. The electric tension cross arm of claim 1, wherein: and a plurality of vertical rubber strips (39) are uniformly arranged on the inner side surface of the pressing block (35) along the circumferential direction of the pressing block.
3. The electric tension cross arm of claim 1, wherein: the tensioning mechanism (4) further comprises a torsion spring (47), a limiting block (48), a second return spring (49) and a push rod (410); a torsion spring (47) is fixedly sleeved on the outer side surface of the mounting column (44), and the bottom end of the torsion spring (47) is connected to the top surface of the sliding block (41); a circular groove is formed in the outer side surface of the mounting column (44) below the top surface of the sliding block (41) along the radial direction of the mounting column; a through hole is formed in the sliding block (41) along the sliding direction of the sliding block (41); the height of the through hole is consistent with that of the circular groove; a limiting block (48) is in sliding fit in the circular groove, and a second return spring (49) is arranged between the end face of the limiting block (48) and the end face of the circular groove; the top surface of the horizontal plate (12) is fixedly provided with a horizontal push rod (410) through a connecting plate, and the push rod (410) is superposed with the axis of the circular groove.
4. The electric tension cross arm of claim 1, wherein: a first limiting plate (5) is vertically and fixedly installed on the top surface of a clamping block (33) installed on one door-shaped frame (31), and a second limiting plate (6) is vertically and fixedly installed on the top surface of a clamping block (33) installed on the other door-shaped frame (31); the first limiting plate (5) and the second limiting plate (6) are tangent to the surface of the telegraph pole, and the ends of the first limiting plate (5) and the second limiting plate (6) are butted together.
5. The electric tension cross arm of claim 4, wherein: the end part of the second limiting plate (6) is fixedly connected with a vertical inserting plate (7), and two sides of the inserting plate (7) are provided with elastic limiting pieces (8); offer slot (9) mutually supporting with picture peg (7) on the terminal surface of first limiting plate (5), slot (9) both sides are offered and are run through first limiting plate (5) and hold chamber (10) mutually supporting with spacing piece (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534794.5A CN111636751B (en) | 2020-06-12 | 2020-06-12 | Electric power strain cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534794.5A CN111636751B (en) | 2020-06-12 | 2020-06-12 | Electric power strain cross arm |
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| Publication Number | Publication Date |
|---|---|
| CN111636751A true CN111636751A (en) | 2020-09-08 |
| CN111636751B CN111636751B (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010534794.5A Active CN111636751B (en) | 2020-06-12 | 2020-06-12 | Electric power strain cross arm |
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| CN (1) | CN111636751B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327011A (en) * | 2020-10-16 | 2021-02-05 | 贵州电网有限责任公司 | Insulator zero-value detection pole auxiliary stand |
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| CN111636751B (en) | 2021-09-24 |
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Inventor after: Zhang Li Inventor after: Liu Yi Inventor after: Chen Jinjie Inventor after: Ni Lilong Inventor after: Xia Wenjin Inventor after: Xu Junhui Inventor before: Ni Lilong Inventor before: Xia Wenjin Inventor before: Xu Junhui |
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Effective date of registration: 20210830 Address after: No.21 Zoucheng Road, Dongying District, Dongying City, Shandong Province 257081 Applicant after: DONGGUAN TIANPU ELECTRONIC Co.,Ltd. Address before: No.5, Longquan Avenue, Baishuiyang Town, Linhai City, Taizhou City, Zhejiang Province Applicant before: Ni Lilong |
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