Matching fitting for changing linear rod into strain rod

Abstract

The technical scheme of the utility model provides a matching fitting for changing a linear rod into a strain rod. The matching fitting comprises a steel strand, a composite insulator and a joint assembly, a butt joint is arranged at one end of the composite insulator; the connector assembly comprises a sleeving head, a clamping and pushing piece and a connector, an embedding and clamping cavity is formed in one end of the sleeving head, the other end of the sleeving head is detachably connected with the connector, the other end of the connector is connected with the steel strand, and an inserting opening matched with the butt joint in shape is formed in the side face of the embedding and clamping cavity. The connector is inserted into the embedding and clamping cavity from the inserting opening, matched with the clamping and pushing piece, staggered from the position of the inserting opening and deeply embedded into the embedding and clamping cavity, stable connection is formed, the falling probability is reduced, stable embedding and clamping connection can be obtained before traction force is not applied, additional operation of embedding and inserting limiting pieces such as a clamping block or a cushion block is not needed, and the operation cost is reduced. The operation action is simplified, and the situation that the embedded and inserted clamping block and the cushion block fall off in the using process is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of live working, in particular to a matching hardware for converting a straight rod into a tension rod. Background Art

[0002] The project of quickly changing live loaded linear poles to tension poles is one of the more complex projects in live distribution network operations, and is also a control node for subsequent complex projects. Usually, the live wires need to be transferred to temporary insulating brackets first, and then the cross arms of the linear poles are replaced with cross arms of tension poles. After overlapping the insulating drainage wires on both sides of the wires and taking measures to prevent the wires from falling, the wire tension is transferred to the tension porcelain bottles of the cross arms of the tension poles. The construction process is complex, requiring high skill levels of live workers, high safety risks, and high labor intensity.

[0003] To solve the above problems, a Chinese utility model patent, with the authorization announcement number CN 210779810 U, is a matching hardware for quickly changing a live and loaded straight rod to a tension rod. The hardware includes a connecting steel strand and a ball head connector provided at both ends of the connecting steel strand. The ball head connectors at both ends are connected to the connecting sleeves on the composite insulators at both ends. The middle of the connecting sleeve is provided with a cavity, and the bottom is provided with a slot, and the ball head connector is stuck in the slot. The operation of quickly changing a straight rod to a tension rod is simplified and the risk is reduced.

[0004] The above-mentioned prior art also has the following disadvantages: the steel strands and the composite insulators are connected by inserting a ball head connector and a connecting sleeve. Although the connection is quick, the stability is insufficient and there is a risk of falling off. Utility Model Content

[0005] In view of this, it is necessary to provide a matching hardware for converting a straight rod into a tension rod to solve the technical problem that in the prior art, the steel strands and the composite insulators are connected by plugging in a ball head connector and a connecting sleeve. Although the connection is quick, the stability is insufficient and there is a risk of falling off.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides a straight rod to change the tension rod matching hardware, including:

[0007] Steel strand;

[0008] A composite insulator having a butt joint at one end; and

[0009] A joint assembly includes a sleeve joint, a push piece and a connector. One end of the sleeve joint is provided with an embedding cavity, and the other end is detachably connected to the connector. The other end of the connector is connected to the steel wire rope. A socket matching the shape of the butt joint is provided on the side of the embedding cavity for the butt joint to be radially inserted into the embedding cavity. The push piece is arranged on the side wall of the embedding cavity opposite to the end of the butt joint, and is used to push the butt joint axially into the embedding cavity.

[0010] Furthermore, a pair of limit plates are provided at the other end of the sleeve joint, and through holes are opened on the limit plates. A hand screw bolt is threadedly installed between the two through holes. The connecting head is sleeved on the hand screw bolt and clamped between the opposite sides of the two limit plates.

[0011] Furthermore, the hand-turned bolt includes a hand-turned head and a screw rod, wherein the screw rod is arranged at the bottom of the hand-turned head, and an embedding groove is opened on the outer side of the screw rod, and the embedding groove is used for the connecting head to be embedded therein under the tension of the steel strand.

[0012] Furthermore, a thread groove is formed at one end of the connector away from the hand-turned bolt, and both ends of the stranded steel wire are provided with end tubes, which are threadedly connected to the corresponding thread groove.

[0013] Furthermore, the embedded groove is a groove body surrounding the screw rod.

[0014] Furthermore, an extension groove is provided on the side wall of the embedding cavity, the push member is built in the extension groove, and the push member includes a spring and a clamping head, and two ends of the spring are respectively connected to the extension groove and the clamping head.

[0015] Furthermore, the push member also includes a push frame and a threaded sleeve, the threaded sleeve is threadedly connected to the outside of the sleeve joint, the sleeve joint is provided with a slide groove that penetrates the extension groove, the push frame is slidably connected in the slide groove and abuts against the clamping head, and the threaded sleeve abuts against the push frame.

[0016] Furthermore, the shape of the clamping head is round and convex.

[0017] Furthermore, the docking joint includes a round head portion and a cylindrical portion, the round head portion is arranged at one end of the cylindrical portion, and a groove is formed on the round head portion, and the groove is opposite to the clamping head.

[0018] Furthermore, the composite insulator is connected to the butt joint via a connecting rod, the embedding cavity comprises a cavity body and an opening, the opening is arranged at the end of the sleeve joint and is communicated with both the cavity body and the socket, the opening is smaller than the diameter of the butt joint and is used for the connecting rod to pass through.

[0019] Compared with the prior art, the utility model has the following beneficial effects: by inserting the connector from the socket into the card embedding cavity, cooperating with the card push piece, it is offset from the socket position and deeply embedded in the card embedding cavity to form a stable connection and reduce the probability of falling off, a stable card embedding connection can be obtained before applying a pulling force, and there is no need to operate additional limiting parts such as embedded card blocks or pads, which simplifies the operation and avoids the falling off of the embedded card blocks and pads during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional exploded view of the matching hardware for converting a straight rod into a tension rod according to an embodiment of the utility model;

[0021] Figure 2 It is a front cross-sectional view of the matching hardware for converting a straight rod into a tension rod according to an embodiment of the utility model;

[0022] Figure 3 It is a three-dimensional structural diagram of the matching hardware for converting a straight rod into a tension rod according to an embodiment of the utility model;

[0023] In the figure: 1, steel strand; 101, end tube;

[0024] 2. Composite insulator; 201. Butt joint; 202. Connecting rod; 2011. Round head; 2012. Cylindrical part;

[0025] 3. Connector assembly; 31. Sleeve connector; 32. Push-pull member; 33. Connector; 34. Limit plate; 35. Hand-twist bolt; 3101. Embedded cavity; 3102. Socket; 3103. Extension groove; 3104. Slide groove; 3105. Open end; 321. Spring; 322. Card head; 323. Push frame; 324. Threaded sleeve; 351. Hand-twist head; 352. Screw; 353. Embedded groove. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0027] like Figure 1-3As shown, the utility model provides a matching hardware for converting a straight rod into a tension rod, comprising a steel strand 1, a composite insulator 2 and a joint assembly 3; one end of the composite insulator 2 is provided with a joint 201, and the number of the joint assemblies 3 is two, which are respectively installed corresponding to the two ends of the steel strand 1, and are used to connect a composite insulator 2 at the two ends of the steel strand 1 respectively; the joint assembly 3 comprises a sleeve joint 31, a push piece 32 and a connector 33, one end of the sleeve joint 31 is provided with an embedding cavity 3101, and the other end is detachably connected to the connector 33, and the other end of the connector 33 is connected to the steel strand 1, and a socket 3102 matching the shape of the joint 201 is opened on the side of the embedding cavity 3101, so that the joint 201 can be radially inserted into the embedding cavity 3101, and the push piece 32 is arranged on the side wall of the embedding cavity 3101 opposite to the end of the joint 201, and is used to push the joint 201 axially into the embedding cavity 3101. During installation, first insert the connector 33 from the socket 3102 into the embedding cavity 3101, and then use the push piece 32 in the embedding cavity 3101 to offset the position of the socket 3102 and embed it deeply into the embedding cavity 3101, so as to form a stable positioning of the connector 201 and reduce the probability of falling off. Before applying any pulling force, sufficient embedding fixation can be obtained, and there is no need to add additional limiting parts such as embedding card blocks or pads, which simplifies the operation and avoids the embedding card blocks and pads from falling off during use.

[0028] The composite insulator 2 is connected to the docking joint 201 via a connecting rod 202. The embedding cavity 3101 includes a cavity and an opening 3105. The cavity is used for embedding installation. The opening 3105 is provided at the end of the sleeve joint 31 and is connected to the cavity and the socket 3102. The opening 3105 is smaller than the diameter of the docking joint 201 and is used for the penetration of the connecting rod 202.

[0029] In this embodiment, in order to facilitate the disassembly and assembly of the sleeve joint 31 and the connecting head 33, a pair of limit plates 34 are provided at the other end of the sleeve joint 31. A through hole is opened on the limit plate 34, and a hand screw bolt 35 is threadedly installed between the two through holes to facilitate manual operation. The connecting head 33 is sleeved on the hand screw bolt 35 and clamped between the two opposite sides of the limit plates 34. During operation, the connecting head 33 is first inserted between the opposite sides of the two limit plates 34 so that the hole position on the limit plate is aligned with the through hole, and then the hand screw bolt 35 is inserted to pass through the through hole and the hole position on the connecting head 33 to complete the limiting, and then the hand screw bolt 35 can be directly tightened manually without the need for additional tools. It can be tightened manually.

[0030] Furthermore, in order to maintain the firmness of the hand-tightening and avoid loose connection, the hand-tightening bolt 35 includes a hand-tightening head 351 and a screw rod 352. The screw rod 352 is arranged at the bottom of the hand-tightening head 351, and an embedding groove 353 is opened on the outer side of the screw rod 352. The embedding groove 353 is used for the connecting head 33 to be embedded therein under the tension of the steel strand 1. After the steel strand 1 is straightened, the connecting head 33 will form a pulling force on the connecting head 33, prompting its hole to be embedded in the embedding groove 353, thereby forming resistance to the screw rod 352 from leaving the through hole, avoiding the loosening caused by insufficient pre-tightening force of the hand-tightening bolt 35, and improving the stability of the connection structure.

[0031] In this embodiment, in order to facilitate the adjustment of the tension of the steel strand 1, a threaded groove is provided at one end of the connector 33 away from the hand-tightening bolt 35, and end tubes 101 are provided at both ends of the steel strand 1. The end tubes 101 are threadedly connected to the corresponding threaded grooves. By rotating the end tube 101, it can be moved laterally along the threaded groove to adjust the length of the steel strand 1 between the composite insulators 2 at both ends, thereby achieving the purpose of adjusting the tension of the steel strand 1. During the installation stage, the connector 33 and the embedding groove 353 are embedded.

[0032] Furthermore, in order to match the rotation of the screw rod 352 , the screw rod 352 can be embedded in the embedding groove 353 in any direction. The embedding groove 353 is a groove body surrounding the screw rod 352 .

[0033] In this embodiment, in order to automatically push the card to limit the position when the docking head 201 is inserted, an extension groove 3103 is opened on the side wall of the embedding cavity 3101, and the push member 32 is built in the extension groove 3103, and the push member 32 includes a spring 321 and a clamping head 322, and the two ends of the spring 321 are respectively connected to the extension groove 3103 and the clamping head 322, and the end of the clamping head 322 is placed in the embedding cavity 3101. When the docking head 201 is inserted, the clamping head 322 is pushed to shrink and then inserted into the embedding cavity 3101. With the rebound of the spring 321, the clamping head 322 is pushed to act on the docking head 201, so that it is embedded in the embedding cavity 3101.

[0034] Furthermore, in order to embed the connecting head 201 in the embedding cavity 3101 for locking, the pushing member 32 also includes a pushing frame 323 and a threaded sleeve 324. The threaded sleeve 324 is threadedly connected to the outside of the sleeve joint 31. The sleeve joint 31 is provided with a slide groove 3104 that penetrates the extension groove 3103. The pushing frame 323 is slidably connected in the slide groove 3104 and abuts against the clamping head 322. The threaded sleeve 324 abuts against the pushing frame 323. By rotating the threaded sleeve 324, the pushing frame 323 can be pushed toward the clamping head 322 to push the clamping head 322 to prevent it from moving away from the docking head 201, thereby forming a locking state.

[0035] It can be understood that the push rack 323 is T-shaped, and the slide groove 3104 passes through the sleeve joint 31 from bottom to top. The push rack 323 is composed of a cross bar connected to the clamp 322, and a vertical bar passing through the cross bar. A hole is opened at one end of the cross bar for the insertion of the vertical bar. The vertical bar slides in the slide groove 3104, and the cross bar is inserted into the extension groove 3103 and placed on the inner side of the spring 321.

[0036] Furthermore, the shape of the clamp head 322 is round and convex, and the arc surface thereon facilitates squeezing and pushing the clamp head 322 when the docking connector 201 is inserted, making the insertion smoother.

[0037] Furthermore, the docking head 201 includes a round head portion 2011 and a cylindrical portion 2012, the round head portion 2011 is arranged at one end of the cylindrical portion 2012, the cylindrical portion 2012 is convenient for being inserted into the embedding cavity 3101 to form a limit, the arc surface of the round head portion 2011 is convenient for squeezing and pushing the clamping head 322 when inserted into the embedding cavity 3101, and a groove 2013 is opened on the round head portion 2011, the groove 2013 is opposite to the clamping head 322, and the clamping head 322 is inserted into the groove 2013, so that the clamping assembly is more stable.

[0038] The specific working process of the utility model is as follows: the end tube 101 is threadedly connected with the connector 33; during installation, the butt joint 201 of the composite insulator 2 is first inserted into the embedding cavity 3101 through the socket 3102. During the insertion process, the spring 321 pushes the clamping head 322 to make the butt joint 201 move axially and embed into the embedding cavity 3101, and then the threaded sleeve 324 is rotated to push the push frame 323, so that the butt joint 201 can be locked in the embedding cavity 3101; then the connector 33 is connected to the sleeve joint 31, first inserted between the two limit plates 34, and then the hand screw bolt 35 is inserted; the joint assembly 3 can also be rotated to adjust the insertion depth of the end tube 101 into the connector 33, so as to form a pulling force to prompt the connector 33 to be embedded into the embedding groove 353.

[0039] The entire workflow is completed, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A matching hardware for converting a straight rod into a tension rod, characterized in that: include: Steel strand; A composite insulator having a butt joint at one end; and A joint assembly includes a sleeve joint, a push piece and a connector. One end of the sleeve joint is provided with an embedding cavity, and the other end is detachably connected to the connector. The other end of the connector is connected to the steel wire rope. A socket matching the shape of the butt joint is provided on the side of the embedding cavity for the butt joint to be radially inserted into the embedding cavity. The push piece is arranged on the side wall of the embedding cavity opposite to the end of the butt joint, and is used to push the butt joint axially into the embedding cavity.

2. The matching hardware for converting a straight rod into a tension rod according to claim 1 is characterized in that: A pair of limit plates are arranged at the other end of the sleeve joint, and through holes are opened on the limit plates. A hand screw bolt is threadedly installed between the two through holes. The connector is sleeved on the hand screw bolt and clamped between the opposite sides of the two limit plates.

3. The matching hardware for converting a straight rod into a tension rod according to claim 2 is characterized in that: The hand-turned bolt comprises a hand-turned head and a screw rod, wherein the screw rod is arranged at the bottom of the hand-turned head, and an embedding groove is provided on the outer side of the screw rod, and the embedding groove is used for the connecting head to be embedded therein under the tension of the steel strand.

4. The matching hardware for converting a straight rod into a tension rod according to claim 3 is characterized in that: A thread groove is formed at one end of the connector away from the hand-turned bolt, and both ends of the stranded steel wire are provided with end tubes, which are threadedly connected to the corresponding thread grooves.

5. The matching hardware for converting a straight rod into a tension rod according to claim 4 is characterized in that: The embedded groove is a groove body surrounding the screw rod.

6. The matching hardware for converting a straight rod into a tension rod according to claim 5, characterized in that: An extension groove is provided on the side wall of the embedding cavity, the push member is built in the extension groove, and the push member includes a spring and a clamping head, and two ends of the spring are respectively connected to the extension groove and the clamping head.

7. The matching hardware for converting a straight rod into a tension rod according to claim 6, characterized in that: The push member also includes a push frame and a threaded sleeve, the threaded sleeve is threadedly connected to the outside of the sleeve joint, the sleeve joint is provided with a slide groove penetrating the extension groove, the push frame is slidably connected in the slide groove and abuts against the clamping head, and the threaded sleeve abuts against the push frame.

8. The matching hardware for converting a straight rod into a tension rod according to claim 7, characterized in that: The shape of the clamping head is round convex.

9. The matching hardware for converting a straight rod into a tension rod according to claim 8, characterized in that: The butt joint comprises a round head portion and a cylindrical portion, wherein the round head portion is arranged at one end of the cylindrical portion and a groove is formed on the round head portion, and the groove is opposite to the clamping head.

10. The matching hardware for converting a straight rod into a tension rod according to claim 9, characterized in that: The composite insulator is connected to the butt joint via a connecting rod. The embedding cavity includes a cavity and an opening. The opening is arranged at the end of the sleeve joint and is connected to the cavity and the socket. The opening is smaller than the diameter of the butt joint and is used for the connection rod to pass through.

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