Spacer

Abstract

The utility model discloses a spacer, which comprises a seat disc, a hinged support, a gear, a tooth column and a variable-diameter frame, the base disc is of a circular plate structure with a center hole, at least two sets of hinged supports are arranged on one end face of the base disc in a circumferential array mode, a gear is matched with each set of hinged support in a rotating mode, a tooth column of a rod-shaped structure is concentrically matched with the interior of the center hole of the base disc, tooth rings distributed at equal intervals are arranged on the tooth column, and the gear is meshed with all the gears through the tooth rings. The two sides of each set of gears are fixedly provided with a reducing frame of a batten structure through bolts, and the ends, away from the gears, of the two sets of reducing frames installed on the same set of gears are rotationally matched with a rotary cable fixing device used for fixing cables. The utility model has the following beneficial effects: the cable spacing can be adaptively adjusted according to the actual situation on site, and the application range is wide.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power equipment, and particularly relates to a spacer rod. Background Art

[0002] Conductor splitting is a conductor installation method adopted by ultra-high voltage transmission lines to suppress corona discharge and reduce line reactance. That is, each phase conductor is composed of several small-diameter branch conductors, each branch conductor is spaced a certain distance apart and arranged in a symmetrical polygon. The spacer is the main hardware in the split conductor structure. In different application scenarios, there are several main types such as three, four, five, six and eight splits. The basic tasks of the spacer are: (1) suppress breeze vibration; (2) prevent whipping between conductors; (3) suppress sub-span oscillation.

[0003] A Chinese patent document with publication number CN101882772A discloses a damping spacer. It relates to improvements to damping spacers. Each wire clamp moves synchronously, so that the electric field shape can be maintained. It includes a frame plate with three, four, five, six or eight frame corners, and a wire clamp arranged at each frame corner. A slide groove is provided from each frame corner of the frame plate to the center of the frame plate, and the width of the slide groove is greater than the width of the wire clamp, so that the wire clamp can deflect while sliding in the slide groove; a turntable is movably connected at the center of the frame plate, and the turntable is provided with a disk corner corresponding to each frame corner on the frame plate; one end of the wire clamp facing the center of the frame plate is hinged to the disk corner through a hinge pin. The present invention changes the original connection form in which the wire clamps are hinged to the frame plate respectively, and connects each wire clamp to a turntable, thereby ensuring that the slight swing of each wire clamp is synchronized when wind shock occurs.

[0004] Due to the differences in the number of wire groups, transmission voltage, and wire thickness, the spacing of the spacer bars needs to be adaptively adjusted according to actual conditions. However, the above-mentioned comparative document does not provide conditions for adaptive adjustment of the cable spacing based on actual on-site conditions. Utility Model Content

[0005] The purpose of the utility model is to provide a spacer rod to solve the problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A spacer rod comprises: a seat plate, a hinge seat, a gear, a tooth column, and a reducer; the seat plate is a circular plate structure with a center hole, and a circular array on one end surface of the seat plate has at least two groups of hinge seats, each group of hinge seats is rotatably matched with a gear, a tooth column of a rod-shaped structure is concentrically matched in the center hole of the seat plate, and the tooth column is provided with equidistantly arranged tooth rings, and the gears are meshed with all the gears by the tooth rings, and a reducer with a plate structure is fixed on both sides of each group of gears by bolts, and the ends of the two groups of reducers installed on the same group of gears away from the gears are rotatably matched with a rotating cable fixer for fixing cables.

[0008] The rotary cable fixer comprises: a clamping sleeve, a connecting beam, a rotating tube, a limiting ring, a cover shell, a second locking bolt, and a reserved groove; the clamping sleeve is a semi-sleeve structure, and the number of the clamping sleeves is two groups, and the two groups of clamping sleeves are connected and fixed by a connecting beam, and a tubular structure perpendicular to the connecting beam is provided in the middle of the connecting beam to form a rotating tube, and the rotating tube and the reducing frame are rotatably matched, and a cover shell is fixed to the two groups of clamping sleeves by the second locking bolt, and the cover shell is composed of two groups of clamping sleeves and a connecting beam connecting them, and the rotating tube is provided with a reserved groove reserved for cable penetration.

[0009] Furthermore, in order to prevent the rotating wire fixer from shifting left and right, a ring-shaped limiting ring is fixed on each side of the rotating tube, and each set of limiting rings fits the inner side of the reducer on the same side to limit the left and right movement of the rotating wire fixer.

[0010] Furthermore, in order to lock the spacing distance after the cable spacing distance is determined, the seat plate is provided with at least one group of countersunk holes, the inner circumferential surface of the countersunk holes is provided with internal threads, and the first locking bolt is screwed on the countersunk holes using the internal threads, and the inner end surface of the first locking bolt contacts the tooth column.

[0011] Furthermore, in order to facilitate the adjustment of the cable spacing distance, a push-pull auxiliary device is provided at one end of the gear column away from the gear.

[0012] Furthermore, in order to further facilitate the pushing and pulling operations, the pushing and pulling auxiliary device is a pull ring or an anti-slip handle.

[0013] Furthermore, in order to reduce the load on the cables and to meet insulation requirements, the seat plate, hinge seat, gear, gear column, reducer, and push-pull auxiliary device are all made of insulating plastic.

[0014] Furthermore, in order to protect the cable and prevent the cable from slipping against the rotary cable holder, an anti-skid pad is provided on the inner circumferential surface of the clamping sleeve.

[0015] In summary, the utility model has the following beneficial effects:

[0016] The cable spacing can be adaptively adjusted according to the actual situation on site, and the application range is wide: through the establishment of gears, tooth columns, and reducers, after all cables are fixed, the tooth columns are pulled out by the push-pull auxiliary device, and the tooth columns drive all the gears to rotate synchronously, and then the reducers fixed on the gears follow the deflection, and because the gears rotate synchronously, the reducers are deflected synchronously, and then the spacing of all cables can be adjusted synchronously. After the adjustment is completed, the first locking bolt is locked with a wrench. The inner end face of the first locking bolt fixes the relative position of the tooth column and the seat plate, and then the tooth column can no longer be pushed or pulled, and then the gear is limited and cannot rotate, and then the spacing of all cables is fixed, so the construction personnel can adaptively adjust the cable spacing according to the actual situation on site, which increases the application range of the cable spacer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the matching structure of the gear and the tooth column in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the countersunk hole in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the rotary wire fixing device in the utility model;

[0021] Figure 5 It is a schematic diagram of the use structure of the utility model;

[0022] In the figure, 1, seat plate; 2, hinge seat; 3, gear; 4, gear column; 5, reducer; 6, rotary wire holder; 7, push-pull auxiliary device; 8, first locking bolt; 9, countersunk hole; 61, clamping sleeve; 62, connecting beam; 63, rotating tube; 64, limiting ring; 65, cover shell; 66, second locking bolt; 67, reserved groove. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Example:

[0025] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0026] A spacer rod comprises: a seat plate 1, a hinge seat 2, a gear 3, a tooth column 4, and a reducer 5; the seat plate 1 is a circular plate structure with a center hole, and one end surface of the seat plate 1 has at least two groups of hinge seats 2 in a circumferential array, each group of hinge seats 2 is rotatably matched with a gear 3, a rod-shaped tooth column 4 is concentrically matched in the center hole of the seat plate 1, and the tooth column 4 is provided with equidistantly arranged tooth rings, and the gear 3 is meshed with all the gears 3 by the tooth rings, and a plate-structured reducer 5 is fixed on both sides of each group of gears 3 by bolts, and the two groups of reducers 5 installed on the same group of gears 3 are rotatably matched with a rotating cable fixer 6 for fixing cables 10 at the end away from the gear.

[0027] The rotary cable holder 6 comprises: a clamping sleeve 61, a connecting beam 62, a rotating tube 63, a limiting ring 64, a cover shell 65, a second locking bolt 66, and a reserved groove 67; the clamping sleeve 61 is a semi-sleeve structure, and the number of the clamping sleeves 61 is two groups, and the two groups of clamping sleeves 61 are connected and fixed by a connecting beam 62, and a tubular structure perpendicular to the connecting beam 62 is provided in the middle of the connecting beam 62 to form a rotating tube 63, and the rotating tube 63 and the reducer 5 are rotatably matched, and a cover shell 65 is fixed on the two groups of clamping sleeves 61 by the second locking bolt 66, and the cover shell 65 is composed of two groups of clamping sleeves 61 and the connecting beam 62 connecting them, and the rotating tube 63 is provided with a reserved groove 67 reserved for cable penetration.

[0028] In order to prevent the rotating wire fixer 6 from shifting left and right, a ring-shaped limiting ring 64 is fixed on both sides of the rotating tube 63. Each set of limiting rings 64 fits the inner side of the reducer 5 on the same side to limit the left and right movement of the rotating wire fixer 6.

[0029] In order to lock the spacing distance after the cable spacing distance is determined, the seat plate 1 is provided with at least one group of countersunk holes 9, the inner circumferential surface of the countersunk hole 9 is provided with an internal thread, and a first locking bolt 8 is screwed on the countersunk hole 9 using the internal thread, and the inner end surface of the first locking bolt 8 contacts the tooth column 4.

[0030] In order to facilitate the adjustment of the cable spacing distance, a push-pull auxiliary device 7 is provided at one end of the tooth column 4 away from the gear 3 .

[0031] In order to further facilitate the pushing and pulling operation, the pushing and pulling auxiliary device 7 is a pull ring or an anti-slip handle.

[0032] In order to reduce the load on the cables and meet insulation requirements, the seat plate 1, hinge seat 2, gear 3, gear column 4, reducer 5, and push-pull auxiliary device 7 are all made of insulating plastic.

[0033] In order to protect the cable and prevent the cable from slipping against the rotary cable holder 6 , an anti-skid pad is provided on the inner circumference of the clamping sleeve 61 .

[0034] When in use, first select the utility model with a corresponding number of rotating cable fixers 6 according to the number of cables to be spaced. After the selection is completed, use a wrench to loosen the first locking bolt 8, and use the outer cover of the rotating cable fixer 6 to fix each cable that needs to be spaced. When using the rotating cable fixer 6 to fix, wrap the cable with an anti-slip gasket and embed it in the concave of the clamping sleeve 61, and then use the second locking bolt 66 to fix the cover shell 65 on the clamping sleeve 61, so as to completely lock the cable. After all cables are fixed, use the push-pull auxiliary device 7 Pull out the tooth column 4, the tooth column 4 drives all the gears 3 to rotate synchronously, and then the reducer 5 fixed on the gear 3 follows the deflection, and because the gears 3 rotate synchronously, the reducer 5 deflects synchronously, and then the spacing of all cables can be adjusted synchronously. After the adjustment is completed, the first locking bolt 8 is locked with a wrench, and the inner end surface of the first locking bolt 8 fixes the relative position of the tooth column 4 and the base plate 1, so that the tooth column 4 can no longer be pushed or pulled, and the gear 3 is limited and cannot rotate, and then the spacing of all cables is fixed (such as Figure 5 As shown), construction personnel can adjust the cable spacing adaptively according to the actual situation on site, increasing the application scope of the cable spacer.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A spacer bar, comprising: A seat plate (1), a hinge seat (2), a gear (3), a tooth column (4), and a reducer (5); characterized in that: the seat plate (1) is a circular plate structure with a center hole, and a circular array of at least two groups of hinge seats (2) are arranged on one end surface of the seat plate (1), and a gear (3) is rotatably matched on each group of hinge seats (2). A rod-shaped tooth column (4) is concentrically matched in the center hole of the seat plate (1), and the tooth column (4) is provided with equidistantly arranged tooth rings. The gear (3) is meshed with all the gears (3) by means of the tooth rings. A reducer (5) of a plate structure is fixed on both sides of each group of gears (3) by bolts, and two groups of reducers (5) installed on the same group of gears (3) are rotatably matched with a rotating wire fixer (6) for fixing the cable (10) at the end away from the gear.

2. A spacer rod according to claim 1, characterized in that: The rotary cable fixer (6) comprises: a clamping sleeve (61), a connecting beam (62), a rotating tube (63), a limiting ring (64), a cover shell (65), a second locking bolt (66), and a reserved groove (67); the clamping sleeve (61) is a semi-sleeve structure, the number of the clamping sleeves (61) is two groups, the two groups of clamping sleeves (61) are connected and fixed by a connecting beam (62), a tubular structure perpendicular to the connecting beam (62) is provided in the middle of the connecting beam (62) to form a rotating tube (63), the rotating tube (63) and the reducer (5) are rotatably matched, a cover shell (65) is fixed on the two groups of clamping sleeves (61) by the second locking bolt (66), the cover shell (65) is composed of two groups of clamping sleeves (61) and a connecting beam (62) connecting them, and a reserved groove (67) reserved for cable penetration is provided on the rotating tube (63).

3. A spacer rod according to claim 2, characterized in that: A ring-shaped limiting ring (64) is fixedly provided on both sides of the rotating tube (63). Each group of limiting rings (64) fits the inner side surface of the reducing frame (5) on the same side to limit the left and right movement of the rotating wire fixer (6).

4. A spacer rod according to claim 1, characterized in that: The seat plate (1) is provided with at least one group of countersunk holes (9), the inner circumferential surface of the countersunk holes (9) is provided with internal threads, a first locking bolt (8) is screwed onto the countersunk holes (9) by means of the internal threads, and the inner end surface of the first locking bolt (8) contacts the tooth column (4).

5. A spacer rod according to claim 1, characterized in that: An end of the tooth column (4) away from the gear (3) is provided with a push-pull auxiliary device (7).

6. A spacer rod according to claim 5, characterized in that: The push-pull auxiliary device (7) is a pull ring or an anti-slip handle.

7. A spacer rod according to claim 5, characterized in that: The seat plate (1), hinge seat (2), gear (3), tooth column (4), reducer (5) and push-pull auxiliary device (7) are all made of insulating plastic.

8. A spacer rod according to claim 2, characterized in that: The inner circumferential surface of the clamping sleeve (61) is provided with an anti-slip pad.

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