A combined load-bearing cable seat

Abstract

A combined load-bearing cable seat, comprising a non-metallic wrist arm connector, a mounting seat and a wire support clamp; the top of the non-metallic wrist arm connector is provided with grooves on both sides perpendicular to the line direction; the mounting seat comprises an inverted L-shaped body, a clamping plate and a fastening bolt pair; the upper end of the clamping plate is hinged to the upper end of the inverted L-shaped body to form a door-shaped structure; the upper part of the inverted L-shaped body is provided with a mounting platform, the lower end inner side is provided with a clamping claw 1, and the lower end inner side of the clamping plate is provided with a clamping claw 2; the fastening bolt pair horizontally passes through the middle of the inverted L-shaped body and the clamping plate to connect and fix the two together, and the clamping claw 1 and the clamping claw 2 are respectively clamped into the grooves, so that the mounting seat is fixed above the top of the non-metallic wrist arm connector; the wire support clamp is installed above the mounting platform. The present invention overcomes the deficiencies of the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of electrified railway contact network components, and in particular relates to a combined load-bearing cable seat. Background Art

[0002] Lightweighting of the contact network and improving the design level of electrical performance are the development direction of rail transit equipment. The prior art closest to the present invention is the "insulated contact network suspension device CN202753803U", which is mainly characterized by the horizontal arm, oblique arm, arm support rod, load-bearing wire clamp, positioning tube and positioner in the suspension device are all made of non-metallic materials; the insulator with a concave and convex outer surface used in conventional technology is eliminated, and each arm supported by non-metallic materials is replaced. These can greatly improve the electrical performance of the suspension device, make the wet flashover voltage high, and improve the level of the contact network safety protection system. However, its arm connection method still uses traditional connection hardware, including more bolt pair parts, and uses bolt pairs to apply tightening torque to prevent axial slippage. For rail transit operating units, the contact network inspection work is mainly to check whether the bolt pair is loose. Therefore, its installation and maintenance will cost huge manpower and time costs. In addition, the patent still uses traditional connection hardware, which has the defects of increasing the weight of the arm and reducing the electrical insulation performance. Summary of the invention

[0003] The invention provides a combined load-bearing cable seat to overcome the deficiencies of the prior art.

[0004] The technical solution adopted by the present invention is: a combined load-bearing cable seat, including a non-metallic wrist arm connector, a mounting seat and a wire support clamp; the top of the non-metallic wrist arm connector is provided with grooves on both sides perpendicular to the line direction;

[0005] The mounting seat comprises an inverted L-shaped body, a clamping plate and a fastening bolt pair; the upper end of the clamping plate is hinged to the upper end of the inverted L-shaped body to form a door-shaped structure; the inverted L-shaped body has a mounting platform on the top, a clamping claw 1 on the inner side of the lower end, and a clamping claw 2 on the inner side of the lower end of the clamping plate; the fastening bolt pair horizontally passes through the middle of the inverted L-shaped body and the clamping plate to connect and fix the two together, and the clamping claw 1 and the clamping claw 2 are respectively clamped into the groove, so that the mounting seat is fixed above the top of the non-metallic wrist arm connector;

[0006] The wire supporting clamp is installed above the mounting platform.

[0007] The non-metallic wrist arm connector includes a left half clamp body and a right half clamp body which are arranged relatively to each other, and the opposite surfaces of the left half clamp body and the right half clamp body are provided with an arc-shaped hook head, a horizontal semicircular groove and an inclined semicircular groove from top to bottom in sequence; the top of the arc-shaped hook head at the two upper ends of the left half clamp body is provided with a mounting platform, and the grooves are provided on both sides of the mounting platform; after the left half clamp body and the right half clamp body are buckled together, the upper ends are connected by the arc-shaped hook head, and the lower ends are connected and fixed by the outer locking sleeve, thereby forming a main clamp through two horizontal semicircular grooves, and forming an auxiliary clamp through two inclined semicircular grooves.

[0008] The center of the mounting platform is provided with a stepped hole which penetrates the inverted L-shaped body and is larger at the bottom and smaller at the top; a connecting bolt pair passes through the stepped hole and the wire supporting clamp from bottom to top, and the wire supporting clamp is installed above the mounting platform.

[0009] The groove is a semicircular groove and a vertical ridge is provided on its surface. The ends of the clamping claw one and the clamping claw two are arc-shaped to match the semicircular groove, and their surfaces are provided with vertical grooves matching the vertical ridge, and the vertical ridge is embedded in the vertical groove.

[0010] The left half hoop body and the right half hoop body are provided with positioning protrusions and positioning grooves on the opposite surfaces of the two sides of the inclined semicircular groove, and the positioning protrusions are embedded in the positioning grooves.

[0011] The lower ends of the outer walls of the left half hoop body and the right half hoop body are both provided with locking grooves, and the inner wall of the inner end of the locking sleeve is provided with a locking platform, and the locking platform is clamped on the locking groove.

[0012] The locking groove is composed of an insertion groove and a clamping groove connected to one side of the insertion groove, and an anti-loosening groove is provided at the lower end of the clamping groove, and an anti-loosening platform is provided at the lower end of the locking platform. After the locking sleeve is aligned with the insertion groove through the locking platform and is sleeved on the lower ends of the outer walls of the left half clamp body and the right half clamp body, the locking sleeve is rotated so that the locking platform is clamped in the clamping groove and the anti-loosening platform is clamped in the anti-loosening groove.

[0013] The inner surfaces of the horizontal semicircular groove and the inclined semicircular groove respectively have internal threads arranged along the circumference thereof.

[0014] Grid reinforcement ribs are arranged on the outer walls of the left half hoop body and the right half hoop body.

[0015] The arc-shaped hook head is a C-shaped hook head, and the C-shaped hook head at the upper end of the right half hoop body is inserted into the C-shaped hook head at the upper end of the left half hoop body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The non-metallic wrist-arm connector of the present invention adopts a double-hoop structure and a non-bolt pair connection method, which saves labor costs and time costs during installation and maintenance, and improves the efficiency of construction and operation maintenance.

[0018] 2. The non-metallic wrist arm connector of the present invention is made of non-metallic materials as a whole, has light weight and high electrical insulation performance level, greatly improves the electrical insulation performance and lightning protection level of the contact network, and reduces grounding faults.

[0019] 3. The inner surfaces of the double clamp structures of the non-metallic wrist-arm connector of the present invention are both provided with internal threads, which can effectively prevent axial slippage.

[0020] 4. The connection method of the locking sleeve of the non-metallic wrist arm connector of the present invention not only has reliable locking, but also can effectively prevent loosening and slipping during use.

[0021] 5. The outer surface of the non-metallic wrist arm connector of the present invention is provided with grid reinforcement ribs, which ensures the structural strength while effectively reducing the weight.

[0022] 6. The wire support clamp of the present invention is clamped in the grooves on both sides of the top of the non-metallic wrist arm connector through a pair of claws arranged opposite to each other at the lower end of the mounting seat, thereby realizing the installation and fixation of the load-bearing cable seat on the non-metallic wrist arm connector.

[0023] 7. The present invention can steplessly adjust the pull-out value of the load-bearing cable by adjusting the different positions of the mounting seat clamped on the groove, and the adjustment is convenient and quick.

[0024] 8. The present invention effectively prevents the load-bearing cable seat from sliding by providing a vertical groove on the claw and a vertical rib in the groove, thereby ensuring that the load-bearing cable seat is stably and reliably installed and fixed on the top of the non-metallic wrist arm connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the mounting base and the wire support clamp of the present invention;

[0027] Figure 3 This is a cross-sectional view of the mounting seat and the wire support clamp structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the left half hoop body of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the right half hoop body of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection structure between the locking sleeve and the left and right half hoop bodies of the present invention;

[0031] Figure 7 yes Figure 6 A partial enlarged schematic diagram in the middle;

[0032] Figure 8 It is a schematic diagram of the use status of the present invention. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-8 The present invention is described in detail with specific embodiments.

[0034] A combined load-bearing cable seat, comprising a non-metallic wrist arm connector 1, a mounting seat 2 and a wire support clamp 3; the top of the non-metallic wrist arm connector 1 is provided with grooves 4 on both sides perpendicular to the line direction;

[0035] The mounting base 2 includes an inverted L-shaped body 5, a clamping plate 6 and a fastening bolt pair 7; the upper end of the clamping plate 6 is hinged on the upper end of the inverted L-shaped body 5 to form a door-shaped structure; the inverted L-shaped body 5 has a mounting platform 8 on the top, a clamping claw 9 on the inner side of the lower end, and a clamping claw 2 10 on the inner side of the lower end of the clamping plate 6; the fastening bolt pair 7 horizontally passes through the middle of the inverted L-shaped body 5 and the clamping plate 6 to connect and fix the two together, and the clamping claw 1 9 and the clamping claw 2 10 are respectively inserted into the groove 4, so that the mounting base 2 is fixed above the top of the non-metallic wrist arm connector 1; the center of the mounting base 8 has a step hole 20 that penetrates the inverted L-shaped body 5 and is larger at the bottom and smaller at the top; the connecting bolt pair 21 passes through the step hole 20 and the wire support clamp 3 from bottom to top, and installs the wire support clamp 3 above the mounting base 8.

[0036] In order to ensure that the mounting base 2 and the non-metallic wrist arm connector 1 are reliably connected and accurately positioned, the groove 4 is a semicircular groove and a vertical ridge 4-1 is provided on its surface. The ends of the claw 1 9 and the claw 2 10 are arc-shaped to match the semicircular groove, and their surfaces are provided with vertical grooves 4-2 that match the vertical ridge 4-1, and the vertical ridge 4-1 is embedded in the vertical groove 4-2.

[0037] The non-metallic wrist arm connector 1 includes a left half hoop body 11 and a right half hoop body 12 which are arranged opposite to each other. The opposite surfaces of the left half hoop body 11 and the right half hoop body 12 are provided with an arc hook head 13, a horizontal semicircular groove 14 and an inclined semicircular groove 15 from top to bottom in sequence; the top of the arc hook head 13 at the upper end of the left half hoop body 11 is provided with a mounting platform 16, and the grooves 4 are provided on both sides of the mounting platform 16; after the left half hoop body 11 and the right half hoop body 12 are buckled together, the upper ends are connected by the arc hook head 13, and the lower ends are connected and fixed by the outer sleeve locking sleeve 17, thereby forming a main hoop 18 through two horizontal semicircular grooves 14, and forming an auxiliary hoop 19 through two inclined semicircular grooves 15.

[0038] The arc-shaped hook head 13 is preferably a C-shaped hook head, and the C-shaped hook head at the upper end of the right half hoop body 12 is inserted into the C-shaped hook head at the upper end of the left half hoop body 11.

[0039] In order to ensure that the left and right half hoop bodies are positioned accurately after being buckled, the left half hoop body 11 and the right half hoop body 12 are provided with positioning protrusions 27 and positioning grooves 22 on the opposite surfaces on both sides of the inclined semicircular groove 15, and the positioning protrusions 27 are embedded in the positioning grooves 22. The positioning grooves 22 are preferably wedge-shaped grooves, and the positioning protrusions 27 are preferably wedge-shaped protrusions matching the wedge-shaped grooves.

[0040] In order to ensure that the locking sleeve 6 is locked reliably and will not fall back and loosen, the lower ends of the outer walls of the left half hoop body 11 and the right half hoop body 12 are both provided with locking grooves 23, and the inner wall of the inner end of the locking sleeve 17 is provided with a locking platform 24, and the locking platform 24 is clamped on the locking groove 23. The locking groove 23 is composed of an insertion groove 23-1 and a clamping groove 23-2 connected to one side of the insertion groove 23-1, and the lower end of the clamping groove 23-2 is provided with an anti-loosening groove 23-3, and the lower end of the locking platform 24 is provided with an anti-loosening platform 24-1. After the locking sleeve 17 is aligned with the insertion groove 23-1 and is sleeved on the lower ends of the outer walls of the left half hoop body 11 and the right half hoop body 12, the locking sleeve 17 is rotated to make the locking platform 24 clamped in the clamping groove 23-2 and the anti-loosening platform 24-1 clamped in the anti-loosening groove 23-3.

[0041] In order to effectively prevent the non-metallic wrist-arm connector 1 from axially sliding, the inner surfaces of the horizontal semicircular groove 14 and the inclined semicircular groove 15 respectively have internal threads 25 arranged along the circumference thereof.

[0042] In order to reduce the weight of the left and right half hoop bodies while ensuring their strength, mesh reinforcement ribs 26 are provided on the outer walls of the left and right half hoop bodies 11 and 12 .

[0043] The left half hoop body 11, the right half hoop body 12 and the locking sleeve 17 are preferably molded from a glass fiber insulation composite material.

[0044] The present invention is mainly used for wrist-arm connection and clamping and fixing the load-bearing cable. When in use, the main clamp 18 is connected and fixed with the horizontal wrist 28, the auxiliary clamp 19 is connected and fixed with the oblique wrist 29, and the load-bearing cable is clamped and fixed by the wire support clamp 3. The pull-out value of the load-bearing cable can be adjusted steplessly by adjusting the different positions of the mounting seat 2 clamped on the groove 4, and the adjustment is convenient and quick.

[0045] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A combined load-bearing cable seat, characterized in that: The invention comprises a non-metallic wrist arm connector (1), a mounting seat (2) and a wire support clamp (3); the top of the non-metallic wrist arm connector (1) is provided with grooves (4) on both sides perpendicular to the line direction; the mounting seat (2) comprises an inverted L-shaped body (5), a clamping plate (6) and a pair of fastening bolts (7); the upper end of the clamping plate (6) is hinged to the upper end of the inverted L-shaped body (5) to form a door-shaped structure; the upper part of the inverted L-shaped body (5) is provided with a mounting platform (8), the inner side of the lower end is provided with a first clamping claw (9), and the inner side of the lower end of the clamping plate (6) is provided with a second clamping claw (10); the pair of fastening bolts (7) is provided with a mounting platform (8) on the upper part, a first clamping claw (9) on the inner side of the lower end of the clamping plate (6), and a second clamping claw (10) on the inner side of the lower end of the clamping plate (6); The inverted L-shaped body (5) and the clamping plate (6) are horizontally passed through the middle of the two to connect and fix them together, and the clamping claws (9) and (10) are respectively inserted into the grooves (4) so ​​that the mounting seat (2) is fixed above the top of the non-metallic wrist-arm connector (1); the wire support clamp (3) is installed above the mounting platform (8); the non-metallic wrist-arm connector (1) comprises a left half hoop body (11) and a right half hoop body (12) which are arranged opposite to each other; the lower ends of the outer walls of the left half hoop body (11) and the right half hoop body (12) are both provided with locking grooves ( The locking sleeve (17) is provided with a locking platform (24) on the inner wall of the inner end thereof, and the locking platform (24) is clamped on the locking groove (23); the locking groove (23) is composed of an insertion groove (23-1) and a clamping groove (23-2) connected to one side of the insertion groove (23-1), and the lower end of the clamping groove (23-2) is provided with an anti-loosening groove (23-3), and the lower end of the locking platform (24) is provided with an anti-loosening platform (24-1), and the locking sleeve (17) is aligned with the insertion groove (23-1) through the locking platform (24) and is sleeved on the left half hoop body (11) and the right half hoop body (11). After the lower end of the outer wall of the hoop body (12) is engaged, the locking sleeve (17) is rotated to make the locking platform (24) snap into the locking groove (23-2) and the anti-loosening platform (24-1) snap into the anti-loosening groove (23-3); the groove (4) is a semicircular groove and a vertical ridge (4-1) is provided on its surface; the ends of the clamping claw 1 (9) and the clamping claw 2 (10) are arc-shaped and matched with the semicircular groove, and the surfaces of the clamping claws are both provided with vertical grooves (4-2) matching with the vertical ridges, and the vertical ridges (4-1) are embedded in the vertical grooves (4-2).

2. A combined load-bearing cable seat according to claim 1, characterized in that: The left half hoop body (11) and the right half hoop body (12) have arc-shaped hook heads (13), horizontal semicircular grooves (14) and inclined semicircular grooves (15) on their opposite surfaces from top to bottom; the top of the arc-shaped hook head (13) at the upper end of the left half hoop body (11) has a mounting platform (16), and the two sides of the mounting platform (16) have the grooves (4); after the left half hoop body (11) and the right half hoop body (12) are buckled together, the upper ends are connected by the arc-shaped hook heads (13), and the lower ends are connected and fixed by the outer sleeve locking sleeve (17), thereby forming a main hoop (18) through the two horizontal semicircular grooves (14), and forming an auxiliary hoop (19) through the two inclined semicircular grooves (15).

3. The combined load-bearing cable seat according to claim 1, characterized in that: The center of the mounting platform (8) is provided with a stepped hole (20) which penetrates the inverted L-shaped body (5) and is larger at the bottom and smaller at the top; a connecting bolt pair (21) passes through the stepped hole (20) and the wire supporting clamp (3) from bottom to top, and the wire supporting clamp (3) is installed above the mounting platform (8).

4. The combined load-bearing cable seat according to claim 2, characterized in that: The left half hoop body (11) and the right half hoop body (12) are provided with corresponding positioning protrusions (27) and positioning grooves (22) on the opposite surfaces on both sides of the inclined semicircular groove (15), and the positioning protrusions (27) are embedded in the positioning grooves (22).

5. A combined load-bearing cable seat according to claim 4, characterized in that: The inner surfaces of the horizontal semicircular groove (14) and the inclined semicircular groove (15) are respectively provided with internal threads (25) arranged along the circumference thereof.

6. A combined load-bearing cable seat according to claim 2, 4 or 5, characterized in that: Grid reinforcement ribs (26) are provided on the outer walls of the left half hoop body (11) and the right half hoop body (12).

7. A combined load-bearing cable seat according to claim 2, 4 or 5, characterized in that: The arc-shaped hook head (13) is a C-shaped hook head, and the C-shaped hook head at the upper end of the right half hoop body (12) is inserted into the C-shaped hook head at the upper end of the left half hoop body (11).

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