High-strength forged four-split spacer for overhead line

Abstract

The invention provides a high-strength forged four-split spacer for an overhead line, and the spacer comprises a fixed structure which comprises a rotating handle, the middle of the rotating handle is provided with a rotating shaft, the two ends of the rotating shaft are provided with transmission lead screws, the transmission lead screws are internally provided with bolt holes, the outer walls of the transmission lead screws are provided with lifting blocks, and the lifting blocks are provided with bolts. The transmission lead screw is matched with a lifting block, a plug pin hole is formed in the lifting block, and a first positioning groove is formed in the outer wall of the lifting block. The circuit clamping device is reasonable in design, the transmission lead screw is matched with the lifting block support, the transmission lead screw with the self-locking function is adopted, the transmission lead screw rotates to drive the stretching rod to rotate, the stretching rod pulls the circuit clamping mechanism to move inwards, the inner wall of the circuit clamping mechanism is tightly attached to the outer wall of a circuit, and therefore the circuit clamping device is convenient to use. The problem that the distance between lines is too close due to looseness between the lines and the spacer structure is avoided, and the number of times of maintenance can be reduced.

Description

Technical Field

[0001] The invention mainly relates to the field of spacer bars, and in particular to a high-strength forged four-split spacer bar for overhead lines. Background Art

[0002] Spacers are hardware that are installed on split conductors to fix the spacing between each split conductor to prevent the conductors from whipping each other and to suppress breeze vibration and sub-span oscillation. Spacers are generally installed in the middle of the span, with a spacing of 50 to 60 meters. The spacers for two-split, four-split, six-split, and eight-split conductors are installed. Compared with the vibration amplitude of the split conductor without spacers, the vibration amplitude of the two-split conductor is reduced by 50%, and the vibration amplitude of the four-split conductor is reduced by 87% and 90%; The main requirements for spacers are that the wire clamps must have sufficient grip and must not be loosened during long-term operation. The overall strength must be able to withstand the centripetal force of each split conductor when the line is short-circuited and fatigue under long-term vibration. Spacers can be divided into two categories based on performance: damping and rigidity. Damping spacers have wear-resistant rubber pads embedded in their moving parts, and the damping of the rubber pads is used to consume the vibration energy of the wires, thereby damping the vibration of the wires. Rigid spacers without such rubber pads are generally used in areas where vibration is not easy to occur or as jumper spacers due to their poor vibration absorption performance.

[0003] The inventor discovered the following defects during the operation of the specific embodiment: When the four-split spacer is used to fix the conductor, two arc rings are usually fitted together and then fixed by bolts. Since the four-split spacer is mainly installed outdoors, the bolts will loosen between the two arc rings over a long period of time, making it impossible for the arc ring to be tightly connected to the conductor.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0005] 1. Technical problem to be solved by the invention: The invention provides a high-strength forged four-split spacer bar for an overhead line, which is used to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution: To achieve the above object, the technical solution provided by the present invention is: a high-strength forged four-split spacer for overhead lines, comprising a spacer structure, wherein the interior of the spacer structure is rotatably connected to a fixed structure, the outer walls of both ends of the fixed structure are rotatably connected to stretching rods, one end of the stretching rod is rotatably connected to a line clamping structure, and the line clamping structure is slidably connected to the spacer structure; The fixed structure includes a rotating handle, a rotating shaft is arranged in the middle of the rotating handle, transmission screws are provided at both ends of the rotating shaft, a pin hole is provided inside the transmission screw, a lifting block is provided on the outer wall of the transmission screw, the transmission screw and the lifting block cooperate with each other, a pin hole is provided inside the lifting block, and a first positioning groove is provided on the outer wall of the lifting block.

[0007] Furthermore, the spacer rod structure includes a mounting plate, a connecting block is arranged inside the mounting plate, the number of the connecting blocks is set to be multiple, a positioning rod is arranged between two connecting blocks, a mounting groove is opened in the middle of the positioning rod, a mounting tube is arranged in the middle of the positioning rod, and the mounting groove is connected to the mounting tube.

[0008] Furthermore, a mounting bar is provided inside the mounting plate, the number of the mounting bars is set to be multiple, and a connecting ring is provided at one end of the mounting bar.

[0009] Furthermore, a guide groove is provided on the inner wall of the mounting strip, an auxiliary groove is provided on one end of the connecting ring, the auxiliary groove is connected to the guide groove, and two sides of the inner wall of the guide groove are inclined.

[0010] Furthermore, the line clamping structure includes a pulling rod and a movable plate, the two ends of the pulling rod are provided with second positioning grooves, a stretching rod is rotatably connected between the second positioning groove and the first positioning groove, and the other end of the pulling rod is provided with a fixing plate.

[0011] Furthermore, both ends of the fixed plate are rotatably connected to rotating plates, a spring push rod is provided between the two rotating plates, and a first pressure strip is provided at one end of the rotating plate.

[0012] Furthermore, the number of the movable plates is set to two, a second pressure strip is provided at one end of the movable plate, the second pressure strip is engaged and connected with the first pressure strip, the outer wall of the movable plate is inclined, and the movable plate is slidably connected to the inner wall of the guide groove.

[0013] Furthermore, a wire-paying ring is provided between the two movable plates, and an anti-slip strip is provided on the inner side of the wire-paying ring.

[0014] Furthermore, the number of the anti-slip strips is set to be multiple, and the multiple anti-slip strips are arranged in a circular array on the inner wall of the wire-releasing ring.

[0015] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention cooperates with the lifting block bracket through the transmission screw and adopts a transmission screw with a self-locking function, so that the transmission screw rotates to drive the stretching rod to rotate, and the stretching rod pulls the line clamping mechanism to move inward, so that the inner wall of the line clamping mechanism is closely fitted with the outer wall of the line, thereby avoiding looseness between the line and the spacer rod structure, resulting in the distance between the lines being too close, and reducing the number of maintenance times; Place the line on the inner wall of the pay-off ring, and then when the movable plate slides inward on the inner wall of the guide groove, the guide groove squeezes the movable plate, causing the pay-off ring to bend inward, and then the anti-slip strip inside the pay-off ring and the outer wall of the line are squeezed, thereby achieving a tight fixation between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of a spacer rod structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional unfolding structure of the line clamping structure of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the fixed structure of the present invention.

[0017] Reference numerals: 1. Spacer rod structure; 101. Mounting plate; 102. Connecting block; 103. Positioning rod; 104. Mounting slot; 105. Mounting tube; 106. Mounting strip; 107. Guide slot; 108. Connecting ring; 109. Auxiliary slot; 2. Fixed structure; 201. Rotating handle; 202. Rotating shaft; 203. Transmission screw; 204. Lifting block; 205. First positioning slot; 3. Stretching rod; 4. Line clamping structure; 401. Pulling rod; 402. Second positioning slot; 403. Fixed plate; 404. Rotating plate; 405. Spring push rod; 406. First pressure strip; 407. Moving plate; 408. Second pressure strip; 409. Pay-off ring; 410. Anti-slip strip. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0022] See attached Figure 1-5 A high-strength forged four-split spacer for an overhead line, comprising a spacer structure 1, wherein the interior of the spacer structure 1 is rotatably connected to a fixed structure 2, the outer walls of both ends of the fixed structure 2 are rotatably connected to stretching rods 3, one end of the stretching rod 3 is rotatably connected to a line clamping structure 4, and the line clamping structure 4 is slidably connected to the spacer structure 1; The fixed structure 2 includes a rotating handle 201, a rotating shaft 202 is arranged in the middle of the rotating handle 201, transmission screws 203 are provided at both ends of the rotating shaft 202, a latch hole is provided inside the transmission screw 203, a lifting block 204 is provided on the outer wall of the transmission screw 203, the transmission screw 203 and the lifting block 204 cooperate with each other, a latch hole is provided inside the lifting block 204, and a first positioning groove 205 is provided on the outer wall of the lifting block 204.

[0023] Furthermore, the spacer rod structure 1 includes a mounting plate 101, a connecting block 102 is arranged inside the mounting plate 101, the number of the connecting blocks 102 is set to be multiple, a positioning rod 103 is arranged between two connecting blocks 102, a mounting groove 104 is opened in the middle of the positioning rod 103, a mounting tube 105 is arranged in the middle of the positioning rod 103, and the mounting groove 104 is connected to the mounting tube 105.

[0024] Further, the interior of the mounting plate 101 is provided with a mounting strip 106, the number of the mounting strips 106 is set to be multiple, one end of the mounting strip 106 is provided with a connecting ring 108, the inner wall of the mounting strip 106 is provided with a guide groove 107, one end of the connecting ring 108 is provided with an auxiliary groove 109, the auxiliary groove 109 is connected to the guide groove 107, the two sides of the inner wall of the guide groove 107 are inclined, the line is placed inside the anti-slip strip 410, and then pushed outward Move the plate 407 to open the two moving plates 407, and then engage the second pressure strip 408 at the bottom of the moving plate 407 with the first pressure strip 406 to fix the anti-slip strip 410. Then, when the pulling rod 401 moves toward the middle, the pulling rod 401 drives the moving plate 407 to move in the middle of the spacer rod structure 1, and the moving plate 407 fits with the inner wall of the guide groove 107 to squeeze the moving plate 407, and then the moving plate 407 drives the wire release ring 409 to bend inward to fix the line.

[0025] Further, the line clamping structure 4 includes a pulling rod 401 and a movable plate 407, the two ends of the pulling rod 401 are provided with a second positioning groove 402, the second positioning groove 402 and the first positioning groove 205 are rotatably connected with a stretching rod 3, the other end of the pulling rod 401 is provided with a fixed plate 403, the two ends of the fixed plate 403 are rotatably connected with a rotating plate 404, a spring push rod 405 is provided between the two rotating plates 404, one end of the rotating plate 404 is provided with a first pressure strip 406, the number of the movable plates 407 is set to two, one end of the movable plate 407 is provided with a second pressure strip 408, and the second pressure strip 408 is engaged with the first pressure strip 406 The outer wall of the movable plate 407 is inclined, the movable plate 407 is slidably connected to the inner wall of the guide groove 107, a wire-releasing ring 409 is arranged between the two movable plates 407, and an anti-slip strip 410 is arranged on the inner side of the wire-releasing ring 409. The number of the anti-slip strips 410 is set to be multiple, and the multiple anti-slip strips 410 are arranged in a circular array on the inner wall of the wire-releasing ring 409; when the line needs to be fixed by the spacer bar structure 1, the line is first placed inside the anti-slip strip 410, and then the movable plate 407 is pulled outward so that the movable plate 407 can drive the second pressure strip 408 to engage with the first pressure strip 406 for fixing, and then the movable plates 407 and lines at the other three positions are installed in sequence; Then, the rotating handle 201 is rotated, the rotating handle 201 drives the rotating shaft 202 to rotate, the rotating shaft 202 drives the transmission screw 203 to rotate, the transmission screw 203 drives the lifting blocks 204 at both ends to move outward, the lifting blocks 204 drive the first positioning slot 205 to move outward, the first positioning slot 205 drives the stretching rod 3 to rotate, the stretching rod 3 pulls the pulling rod 401 to move to the middle position of the installation disk 101, and then the pulling rod 401 drives the fixed plate 403 to move to the middle, and the fixed plate 403 drives the moving plate 407 to move to the middle of the installation disk 101 through the first pressure strip 406 at one end of the rotating plate 404 and the second pressure strip 408 engagement; When the movable plate 407 moves, the outer wall of the movable plate 407 is slidably connected with the inner wall of the guide groove 107, and the inner wall of the guide groove 107 and the outer wall of the movable plate 407 are both inclined, so that the movable plate 407 is squeezed inward by the guide groove 107 during the sliding process, and the movable plate 407 drives the rotating plate 404 to rotate and squeeze the spring push rod 405, and the rotating plate 404 rotates at both ends of the fixed plate 403, so that the first pressure strip 406 and the second pressure strip 408 are always kept engaged; When the moving plates 407 move inward, the two moving plates 407 drive the wire-releasing ring 409 to tighten inward, and the anti-slip strip 410 on the inner side of the wire-releasing ring 409 fits against the outer wall of the line.

[0026] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A high-strength forged four-split spacer bar for overhead lines, characterized in that: include A spacer bar structure (1), wherein the interior of the spacer bar structure (1) is rotatably connected to a fixed structure (2), the outer walls of both ends of the fixed structure (2) are rotatably connected to stretching rods (3), one end of the stretching rod (3) is rotatably connected to a line clamping structure (4), and the line clamping structure (4) is slidably connected to the spacer bar structure (1); The fixed structure (2) comprises a rotating handle (201), a rotating shaft (202) is arranged in the middle of the rotating handle (201), transmission screws (203) are arranged at both ends of the rotating shaft (202), a latch hole is arranged inside the transmission screw (203), a lifting block (204) is arranged on the outer wall of the transmission screw (203), the transmission screw (203) and the lifting block (204) cooperate with each other, a latch hole is arranged inside the lifting block (204), and a first positioning groove (205) is arranged on the outer wall of the lifting block (204).

2. The high-strength forged four-split spacer bar for overhead lines according to claim 1, characterized in that: The spacer rod structure (1) comprises a mounting plate (101), a connecting block (102) is arranged inside the mounting plate (101), the number of the connecting blocks (102) is set to be multiple, a positioning rod (103) is arranged between two connecting blocks (102), a mounting groove (104) is opened in the middle of the positioning rod (103), a mounting tube (105) is arranged in the middle of the positioning rod (103), and the mounting groove (104) is connected to the mounting tube (105).

3. The high-strength forged four-split spacer bar for overhead lines according to claim 2, characterized in that: A mounting strip (106) is provided inside the mounting plate (101), the number of the mounting strips (106) is set to be multiple, and a connecting ring (108) is provided at one end of the mounting strip (106).

4. The high-strength forged four-split spacer bar for overhead lines according to claim 3, characterized in that: The inner wall of the mounting strip (106) is provided with a guide groove (107), one end of the connecting ring (108) is provided with an auxiliary groove (109), the auxiliary groove (109) is connected to the guide groove (107), and both sides of the inner wall of the guide groove (107) are arranged obliquely.

5. The high-strength forged four-split spacer bar for overhead lines according to claim 1, characterized in that: The line clamping structure (4) comprises a pulling rod (401) and a movable plate (407), wherein second positioning grooves (402) are provided at both ends of the pulling rod (401), a stretching rod (3) is rotatably connected between the second positioning groove (402) and the first positioning groove (205), and a fixing plate (403) is provided at the other end of the pulling rod (401).

6. The high-strength forged four-split spacer bar for overhead lines according to claim 5, characterized in that: The two ends of the fixed plate (403) are rotatably connected to rotating plates (404), a spring push rod (405) is provided between the two rotating plates (404), and a first pressure strip (406) is provided at one end of the rotating plate (404).

7. The high-strength forged four-split spacer bar for overhead lines according to claim 5, characterized in that: The number of the movable plates (407) is set to two, a second pressure strip (408) is provided at one end of the movable plate (407), the second pressure strip (408) is snap-connected with the first pressure strip (406), the outer wall of the movable plate (407) is inclined, and the movable plate (407) is slidably connected with the inner wall of the guide groove (107).

8. The high-strength forged four-split spacer bar for overhead lines according to claim 7, characterized in that: A wire-paying ring (409) is provided between the two movable plates (407), and an anti-slip strip (410) is provided on the inner side of the wire-paying ring (409).

9. The high-strength forged four-split spacer bar for overhead lines according to claim 8, characterized in that: The number of the anti-slip strips (410) is set to be multiple, and the multiple anti-slip strips (410) are arranged in a circular array on the inner wall of the wire-releasing ring (409).

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