A special connecting fitting and an integrated fitting and insulator device

Abstract

This utility model relates to the field of power transmission technology and discloses a special connecting fitting and an integrated device for the fitting and insulator. The special connecting fitting includes: a connecting seat, a connecting head, and a limiting member; the connecting seat has a mounting cavity, and two hanging plates are provided on one side of the connecting seat; the connecting head includes an integrally formed mounting part and a connecting part, the mounting part being rotatably disposed in the mounting cavity, and the connecting part extending out of the connecting seat; the limiting member is disposed in the mounting cavity, with one side abutting against the other side of the mounting part, and the other side abutting against the inner wall of the mounting cavity. In this special connecting fitting of the utility model, the connecting head is suitable for connecting insulators, while the connecting seat, through the hanging plates, is suitable for connecting crossarms. In strong winds, because the connecting seat and the connecting head can rotate relative to each other, the connecting fitting, as well as the insulator and crossarm, will not bear large torsional stresses, thereby reducing the risk of structural deformation or even damage.

Description

Technical Field

[0001] This utility model relates to the field of power transmission technology, specifically to a special connecting fitting and an integrated device for fitting and insulator. Background Technology

[0002] The application of integrated devices is becoming increasingly widespread in power systems, especially in transmission lines. These integrated devices typically combine multiple functional components, such as insulators and surge arresters, to improve system stability and reliability. Traditional integrated hardware and insulator devices consist of connected hardware and insulators, which are then connected to the crossarm on the pole via the connecting hardware. This connection method not only simplifies the installation process but also reduces construction costs.

[0003] In practical applications, to meet connection requirements in different directions, connecting hardware often uses right-angle mounting plates. These plates are perpendicular to the connection direction of the insulator and crossarm, thus achieving a transition from horizontal to vertical connection. While this type of connecting hardware can meet basic functional requirements to some extent, under extreme weather conditions, especially strong winds, the highly integrated nature of the device results in insufficient rotational freedom between the connection and the crossarm. This causes the entire structure to bear significant stress in the torsional direction, easily leading to structural deformation or even failure, posing a high safety risk. Utility Model Content

[0004] In view of this, the present invention provides a special connecting fitting and an integrated fitting and insulator device to solve the problem that existing integrated fitting and insulator devices are prone to structural deformation or even damage under strong winds due to large torsional stress.

[0005] Firstly, this utility model provides a special connecting fitting, comprising:

[0006] A connector, the connector having a mounting cavity, and two mounting plates provided on one side of the connector;

[0007] A connector, comprising an integrally formed mounting portion and a connecting portion, wherein the mounting portion is rotatably disposed in the mounting cavity and the connecting portion extends out of the connector seat;

[0008] A limiting member is disposed in the mounting cavity, with one side abutting against the other side of the mounting part and the other side abutting against the inner wall of the mounting cavity.

[0009] Beneficial effects

[0010] The connector in the connecting hardware is suitable for connecting insulators, while the connecting seat is suitable for connecting crossarms via a mounting plate. In strong winds, because the connecting seat and connector can rotate relative to each other, the connecting hardware, insulators, and crossarms will not bear large torsional stresses, thus reducing the risk of structural deformation or even damage.

[0011] In an optional embodiment, the side wall of the connector near the mounting plate is formed with a placement groove, and the side wall near the connector head and the outer wall of the connector away from the mounting plate are formed with a through groove, which communicates with the placement groove.

[0012] In an optional embodiment, the opening size of the placement slot is larger than the outer edge size of the mounting portion.

[0013] In an optional embodiment, the opening size of the through slot is larger than the outer edge size of the connecting portion and smaller than the outer edge size of the mounting portion.

[0014] Beneficial effects

[0015] During the installation of the connecting fittings, the mounting part of the connector can enter the mounting cavity of the connector seat through the placement groove, and the connecting part can enter the mounting cavity of the connector seat through the through groove. After the connector is fully installed, the mounting part is positioned below the through groove, which restricts the radial displacement of the mounting part. By providing a slot structure on the connecting groove, the mounting part, i.e., the connector, can be limited, preventing the mounting part from sliding out of the connector seat.

[0016] In an optional embodiment, the limiting member is a limiting block, the inner wall of the connecting seat is provided with a limiting groove, and the limiting block is disposed in the limiting groove.

[0017] In an optional embodiment, the limiting member includes a support portion and two limiting portions, the two ends of the support portion being connected to the first ends of the two limiting portions respectively, the second ends of the limiting portions being formed with a snap-fit ​​portion, and the distance between the two limiting portions gradually increasing from the first ends to the second ends.

[0018] In an optional embodiment, the sidewall of the connector is provided with a snap-fit ​​groove relative to the placement slot, and the snap-fit ​​portion snaps into the edge of the snap-fit ​​groove.

[0019] In an optional embodiment, the limiting member is an elastic member.

[0020] Beneficial effects

[0021] The flexible limiting component can keep the locking part and the locking groove firmly locked together, ensuring that the limiting component can stably limit the connector during use.

[0022] Secondly, this utility model also provides an integrated device for fittings and insulators, including: an insulator, a connecting rod, and the special connecting fittings, wherein one end of the insulator is connected to the end of the connector extending from the connecting seat, and the other end of the insulator is connected to the connecting rod.

[0023] Beneficial effects

[0024] Since the integrated fitting and insulator device includes dedicated connecting fittings and has the same effect as dedicated connecting fittings, it will not be elaborated here.

[0025] In an optional embodiment, a tension clamp is provided at the end of the connecting rod away from the insulator, the outer wall of the tension clamp is provided with reinforcing ribs, and the inner wall of the tension clamp is provided with an anti-slip threaded wedge.

[0026] Beneficial effects

[0027] The reinforcing ribs significantly enhance the mechanical strength and stability of the tension clamp, improving its compressive strength and durability, ensuring it will not be damaged by external environmental factors during long-term use, and further guaranteeing the safety and reliability of the entire device. Meanwhile, the anti-slip threaded wedges effectively increase the friction between the tension clamp and the wire, preventing the wire from loosening or falling off under stress or vibration, thus easily improving the stability and reliability of the connection. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is an exploded view of the special connecting hardware according to Embodiment 1 of this utility model;

[0030] Figure 2 This is a schematic diagram of the integrated hardware and insulator device according to Embodiment 1 of this utility model;

[0031] Figure 3 This is an enlarged schematic diagram of part A in the integrated hardware and insulator device of Embodiment 1 of this utility model;

[0032] Figure 4 This is a schematic diagram of the special connecting hardware according to Embodiment 2 of this utility model;

[0033] Figure 5 This is a schematic diagram of the connector in the special connecting hardware of Embodiment 2 of this utility model;

[0034] Figure 6 This is a schematic diagram of the connecting seat in the special connecting hardware of Embodiment 2 of this utility model;

[0035] Figure 7 This is a schematic diagram of the limiting component in the special connecting hardware of Embodiment 2 of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Special connecting hardware; 11. Connecting seat; 111. Placement slot; 112. Passing slot; 113. Limiting slot; 114. Snap-fit ​​slot; 115. Mounting platform; 12. Hanging plate; 13. Connector; 131. Mounting part; 132. Connecting part; 14. Limiting component; 141. Support part; 142. Limiting part; 143. Snap-fit ​​part.

[0038] 2. Insulators;

[0039] 3. Connecting rod;

[0040] 4. Tension clamp; 41. Reinforcing rib; 42. Anti-slip threaded wedge. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] Example 1

[0043] The following is combined Figures 1 to 3 This describes one embodiment of the present invention.

[0044] According to an embodiment of the present invention, a special connecting fitting 1 is provided, comprising: a connecting seat 11, a connecting head 13, and a limiting member 14. The connecting seat 11 has a mounting cavity, and two hanging plates 12 are provided on one side of the connecting seat 11. The connecting head 13 includes an integrally formed mounting portion 131 and a connecting portion 132, the mounting portion 131 being rotatably disposed in the mounting cavity, and the connecting portion 132 extending out of the connecting seat 11. The limiting member 14 is disposed in the mounting cavity, and one side of it abuts against the other side of the mounting portion 131, and the other side abuts against the inner wall of the mounting cavity.

[0045] The connecting seat 11 has an internal mounting cavity suitable for accommodating the connector 13 and the limiting member 14. The connecting seat 11 is formed by machining a cylindrical base, with two hanging plates 12 on one side. The two hanging plates 12 are arranged opposite each other and each has mounting holes for connection with the crossbeam via bolts and nuts. The mounting part 131 of the connector 13 is shaped like a frustum, and the connecting part 132 is a hollow cylindrical part. The mounting part 131 has a larger diameter and a shorter axial length, while the connecting part 132 has a smaller diameter and a longer axial length. In actual production, the connector 13 is a one-piece molded part, that is, the mounting part 131 and the connecting part 132 are integrally molded. The axial length of the mounting cavity is greater than the axial length of the mounting part 131. To limit the axial displacement of the mounting part 131, a limiting member 14 is provided in the mounting cavity. The limiting member 14 abuts against the mounting part 131 and the inner wall of the mounting cavity, which can limit the axial displacement of the mounting part 131, so that the mounting part 131 can only rotate.

[0046] In strong winds, connector 13 and connector 11 can rotate relative to each other, so the connecting hardware will not twist or bear large torsional stress, thereby reducing the risk of structural deformation or even damage, and ensuring the safe use of insulators 2, crossarms and other devices connected to the connecting hardware.

[0047] In one embodiment, the side wall of the connector 11 near the mounting plate 12 is formed with a placement groove 111, and the side wall near the connector 13 and the outer wall of the connector 11 away from the mounting plate 12 are formed with a through groove 112, which communicates with the placement groove 111.

[0048] The connecting seat 11 is formed by machining a cylindrical base. For ease of description, the various walls of the connecting seat 11 are referred to as the first outer wall, the second outer wall, and the side wall, but in actual production, the connecting seat 11 is also a one-piece molded part. Two mounting plates 12 are provided on the first outer wall, and the connecting portion 132 of the connector 13 extends from the second outer wall. The side wall is an arc-shaped surface connecting the first and second outer walls. The placement groove 111 is an arc-shaped groove formed on the side wall near the mounting plate 12 / first outer wall, while the through groove 112 is formed on the side wall away from the mounting plate 12 / first outer wall and on the second outer wall, meaning the through groove 112 connects the side wall and the second outer wall. The placement groove 111 and the through groove 112 are connected, and both the placement groove 111 and the through groove 112 are also connected to the mounting cavity.

[0049] In one embodiment, the opening size of the placement groove 111 is larger than the outer edge size of the mounting portion 131. The placement groove 111 is provided to facilitate the smooth entry of the mounting portion 131 into the mounting cavity.

[0050] In one embodiment, the opening size of the slot 112 is larger than the outer edge size of the connecting portion 132 and smaller than the outer edge size of the mounting portion 131.

[0051] The placement groove 111 and the passage groove 112 are designed and their size is limited so that the connecting part 132 can smoothly enter the mounting cavity during installation and the mounting part 131 can be limited when the connecting hardware is used.

[0052] In one embodiment, a mounting platform 115 is also provided in the mounting cavity of the connector 11. The mounting platform 115 is located below the through groove 112, and the top surface of the mounting platform 115 is an arc surface that matches the outer edge of the mounting portion 131 of the connector 13.

[0053] The specific installation steps for connector 13 and connector 11 are as follows: First, align the mounting portion 131 of connector 13 with the placement groove 111, and align the connecting portion 132 with the through groove 112. Then, move connector 13 or connector 11 so that the mounting portion 131 enters the mounting cavity. Subsequently, move connector 13 axially so that the mounting portion 131 is located below the through groove 112 and rests on the mounting platform 115. After installation, since the size of the through groove 112 is smaller than the size of the mounting portion 131, the radial displacement of the mounting portion 131 is restricted, preventing the mounting portion 131 from detaching from the mounting cavity, while the connecting portion 132 passes through the through groove 112.

[0054] In one embodiment, the limiting member 14 is a limiting block, and the inner wall of the connecting seat 11 is provided with a limiting groove 113, and the limiting block is disposed in the limiting groove 113.

[0055] Specifically, the limiting block is a cuboid-shaped block, and a limiting groove 113 is provided on the inner wall of the connecting seat 11 below the placement groove 111. The limiting groove 113 does not penetrate the side wall of the connecting seat 11. The limiting block is inserted into the placement groove 111, and both sides of the limiting block abut against the mounting part 131 and the inner wall of the mounting cavity, respectively.

[0056] The limiting member 14 only needs to be able to limit the connector 13, and its specific shape, structure and setting method are not specifically limited in this embodiment.

[0057] The installation process of the special connecting hardware 1 provided in this embodiment is described below:

[0058] Align the mounting portion 131 of the connector 13 with the placement groove 111, and align the connecting portion 132 with the through groove 112. Then move the connector 13 so that the mounting portion 131 enters the mounting cavity. Subsequently, move the connector 13 away from the scraper along its axial direction so that the mounting portion 131 is located below the through groove 112. Finally, place the limiting member 14 in the mounting cavity so that its two sides abut against the mounting portion 131 of the connector 13 and the inner wall of the mounting cavity.

[0059] On the other hand, this embodiment also provides an integrated device for fittings and insulators 2, which includes: insulator 2, connecting rod 3, and special connecting fitting 1. One end of the insulator 2 is connected to the end of the connector 13 extending from the connecting seat 11, and the other end of the insulator 2 is connected to the connecting rod 3. The structure of the special connecting fitting 1 is the same as that described in the above embodiment, so it will not be described again. The insulator 2, connecting rod 3, and special connecting fitting 1 are integrally formed by a crimping process.

[0060] The integrated device can be connected to the crossarm by means of two mounting plates 12 on the special connecting hardware 1. The specific operation is as follows: the connecting hole on the crossarm is set between the two mounting plates 12, the bolt is passed through the mounting hole of the mounting plate 12 and the connecting hole of the crossarm, and then the nut is tightened on the bolt.

[0061] In one embodiment, a tension clamp 4 is provided at the end of the connecting rod 3 away from the insulator 2, the outer wall of the tension clamp 4 is provided with reinforcing ribs 41, and the tension clamp 4 is provided with anti-slip threaded wedges 42 inside.

[0062] A tension clamp 4 is fixed at the end of the connecting rod 3 away from the insulator 2. The tension clamp 4 is a circular tube made of insulating material. A wire release opening is provided on the side wall of the tension clamp 4, and anti-slip threads are provided inside the tension clamp 4.

[0063] Furthermore, the outer wall of the tension clamp 4 is fixed with reinforcing ribs 41, and multiple reinforcing ribs 41 are evenly arranged along the axial direction of the tension clamp 4, and the reinforcing ribs 41 are arc-shaped.

[0064] When in use, insert the wire into the tension clamp 4 through the wire release port, and then set up the wire so that the wire can be more firmly fixed on the connecting rod 3. The anti-slip threads can effectively increase the friction between the tension clamp 4 and the wire, preventing the wire from loosening or falling off under stress or vibration, thereby easily improving the stability and reliability of the connection.

[0065] Example 2

[0066] The following is combined Figures 4 to 7 This describes a second embodiment of the present invention. The difference between this embodiment and the first embodiment lies in the structure of the limiting member 14.

[0067] In one embodiment, the limiting member 14 includes a support portion 141 and two limiting portions 142. The two ends of the support portion 141 are respectively connected to the first ends of the two limiting portions 142. The second ends of the limiting portions 142 are formed with snap-fit ​​portions 143, and the distance between the two limiting portions 142 gradually increases from the first ends to the second ends.

[0068] The limiting member 14 is also a one-piece molded part, with an overall shape approximately U-shaped with the open end expanding outwards. Specifically, the two limiting parts 142 are arranged in a figure-eight shape, with the two first ends close together and the two second ends far apart. The support part 141 is arc-shaped and connects the first ends of the two limiting parts 142. The second ends are bent towards the first ends to form a snap-fit ​​part 143.

[0069] In one embodiment, the side wall of the connector 11 is provided with a snap-fit ​​groove 114 relative to the placement groove 111, and the snap-fit ​​part 143 snaps into the edge of the snap-fit ​​groove 114.

[0070] A snap-fit ​​groove 114 is provided directly opposite the placement groove 111. The snap-fit ​​groove 114 is also an arc-shaped groove and extends through the side wall. The snap-fit ​​part 143 snaps into the edge of the snap-fit ​​groove 114 to fix the limiting member 14.

[0071] In one embodiment, the limiting member 14 is an elastic member. The limiting member 14 has a certain degree of elasticity and can undergo elastic deformation.

[0072] The function of the limiting member 14 is to limit the axial displacement of the connector 13. During installation, the limiting member 14 is generally first compressed to allow it to smoothly enter the placement groove 111, and then the limiting member 142 is released when it reaches the snap-fit ​​groove 114, so that the two snap-fit ​​parts 143 are snapped into the edge of the snap-fit ​​groove 114. At the same time, under the action of elastic force, the limiting member 14 and the connector 11 are kept in close contact.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A special connecting fitting, characterized in that, include: A connecting seat (11) has a mounting cavity, and two hanging plates (12) are provided on one side of the connecting seat (11); The connector (13) includes an integrally formed mounting part (131) and a connecting part (132). The mounting part (131) is rotatably disposed in the mounting cavity, and the connecting part (132) extends out of the connecting seat (11). A limiting member (14) is provided in the mounting cavity, and one side of the limiting member (14) abuts against the other side of the mounting part (131), and the other side abuts against the inner wall of the mounting cavity.

2. The special connecting fitting according to claim 1, characterized in that, The side wall of the connector (11) near the mounting plate (12) is formed with a placement groove (111), and the side wall near the connector (13) and the outer wall of the connector (11) away from the mounting plate (12) are formed with a through groove (112), which communicates with the placement groove (111).

3. The special connecting fitting according to claim 2, characterized in that, The opening size of the placement groove (111) is larger than the outer edge size of the mounting part (131).

4. The special connecting fitting according to claim 3, characterized in that, The opening size of the through groove (112) is larger than the outer edge size of the connecting part (132) and smaller than the outer edge size of the mounting part (131).

5. The special connecting fitting according to any one of claims 2-4, characterized in that, The limiting member (14) is a limiting block, and the inner wall of the connecting seat (11) is provided with a limiting groove (113), and the limiting block is disposed in the limiting groove (113).

6. The special connecting fitting according to any one of claims 2-4, characterized in that, The limiting member (14) includes a support part (141) and two limiting parts (142). The two ends of the support part (141) are respectively connected to the first ends of the two limiting parts (142). The second end of the limiting part (142) is formed with a snap-fit ​​part (143), and the distance between the two limiting parts (142) gradually increases from the first end to the second end.

7. The special connecting fitting according to claim 6, characterized in that, The side wall of the connector (11) is provided with a snap-fit ​​groove (114) relative to the placement groove (111), and the snap-fit ​​part (143) snaps into the edge of the snap-fit ​​groove (114).

8. The special connecting fitting according to claim 6, characterized in that, The limiting member (14) is an elastic member.

9. An integrated device for fittings and insulators, characterized in that, include: The insulator (2), the connecting rod (3), and the special connecting fitting (1) according to any one of claims 1-8, wherein one end of the insulator (2) is connected to one end of the connector (13) extending out of the connector seat (11), and the other end of the insulator (2) is connected to the connecting rod (3).

10. The integrated fitting and insulator device according to claim 9, characterized in that, The connecting rod (3) is provided with a tension clamp (4) at the end away from the insulator (2). The tension clamp (4) is provided with a reinforcing rib (41) on its outer wall and an anti-slip threaded wedge (42) inside the tension clamp (4).

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