Clamping piece type steel strand quick connector

Abstract

The utility model relates to a clip type steel strand quick connector, which comprises a connector and clip type connecting components respectively connected to two ends of the connector, each clip type connecting component comprises a guide sleeve, an ejector rod, a spring I, an anchoring sleeve, a clip component and a spring II, the inner end of the anchoring sleeve is connected with the connector, the spring II is mounted in the anchoring sleeve, and the clip component is connected with the guide sleeve. The ejector rod is located in the guide sleeve, a groove hole is formed in the outer end of the guide sleeve, the ejector rod is sleeved with the first spring, the ejector rod and the anchoring sleeve are tightly jacked by the two ends of the first spring respectively, the outer end of the ejector rod is tightly jacked in the guide sleeve, and the inner end of the ejector rod is located in the anchoring sleeve. And the clamping piece assembly is in a clamping state. The connector can be used as an auxiliary tool for stay cable penetrating construction, the clamping pieces can be controlled to loosen and clamp the steel wires quickly, conveniently and quickly, connection work of the steel strands can be completed quickly, and operation is easy.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a clip-type steel stranded wire quick connector. Background Art

[0002] In the installation and construction of the cable-stayed cable, in order to ensure that the working steel strands are accurately inserted into the corresponding anchor holes of the anchors, it is usually necessary to use a guide rod to pull them. The guide rod is usually replaced by a steel strand of the same specification and model, and a connector is required to connect the guide rod and the working steel strand. Therefore, the outer diameter of the connector is required not to be larger than the diameter of the anchor hole, otherwise the steel strand cannot be pulled through the anchor hole. Secondly, the connector must be able to lock the guide rod and the working steel strand, and can be easily installed and removed.

[0003] The connector commonly used on construction sites at present is a swaging connector. Before installation, this type of connector needs to cut off the steel wire on the outside of the steel strand, leaving the center steel wire, and then use a swaging machine to swage the center wire. Finally, it is installed on the connector and the swaging is clamped by the clamping position, so that the guide rod is connected to the working steel strand. However, there are many installation procedures for the swaging connector, and a lot of manpower and time are required to process the steel strand in the early stage of installation, especially the swaging process. One process needs to be completed by two workers (one to operate the oil pump machine and the other to operate the swaging machine). In some bridges, the number of steel strands is often relatively large. At this time, the pier head processing of the steel strand requires a lot of manpower and time costs. Therefore, it is necessary to develop a more convenient connection device to address this problem.

[0004] Among the currently disclosed patent documents, there are some structures that use clips as connectors. Among the connectors of these structures, the patent application with application publication number CN114135059A discloses a connector for connecting unbonded prestressed steel strands in post-cast strips, which is used for the installation and connection of prestressed tendons in the body cable. It is used as an anchor product. The clip in the connector uses the steel wire of the outer ring of the steel strand as a clamping piece, and does not use the center wire of the steel strand as a clamping piece. In addition, the size of the connector is much larger than the diameter of the steel strand, so the connector cannot pass through the anchor hole of the anchor plate and cannot be used for pulling the steel strand through the cable. Since it is used as an anchor, the clip of the connector does not need to repeatedly loosen and clamp the steel wire, so its structure cannot quickly and conveniently control the loosening and clamping of the clip, and it is not suitable as an auxiliary tool for cable-threading construction. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a clip-type steel strand quick connector, which can be used as an auxiliary tool for the cable threading construction of inclined cables, can quickly and conveniently control the clamping piece to loosen and clamp the steel wire, can quickly complete the connection work of the steel strand, and is easy to operate.

[0006] The technical solution to solve the above technical problems is: a clip-type steel strand quick connector, including a connecting head and a clip-type connecting assembly respectively connected to the two ends of the connecting head, the clip-type connecting assembly includes a guide sleeve, a push rod, a spring one, an anchor sleeve, a clip assembly and a spring two, the clip assembly is composed of three clips, the clip assembly is installed in the anchor sleeve, the inner end of the anchor sleeve is connected to the connecting head, the spring two is installed in the anchor sleeve, the two ends of the spring two respectively tighten the clip assembly and the connecting head, the inner end of the guide sleeve is connected to the outer end of the anchor sleeve, the push rod is provided with a through hole for the steel strand to pass through, the push rod is located in the guide sleeve, the outer end of the guide sleeve is provided with a slot hole for facilitating pushing the push rod, the spring one is installed on the push rod, the two ends of the spring one respectively tighten the push rod and the anchor sleeve, the outer end of the push rod is pressed tightly in the guide sleeve, and the inner end of the push rod is located in the anchor sleeve. When there is no external force, the clip assembly is in a clamped state.

[0007] Furthermore, the inner end of the anchor sleeve is connected to the connecting head via threads, and the inner end of the anchor sleeve and the connecting head are also fixed with set screws.

[0008] Furthermore, the inner end of the guide sleeve is connected to the outer end of the anchor sleeve via threads.

[0009] Furthermore, the push rod is a T-shaped structure with an annular baffle disposed at the outer end.

[0010] Due to the adoption of the above technical solution, the utility model has the following technical effects:

[0011] 1. Save time and labor. The utility model clamp-type steel strand quick connector bites the steel wire through the clamp, and does not need to be upswept. Compared with the upswept connector, it saves the upswept process, thus saving a lot of labor and time costs.

[0012] 2. Reasonable structural design, easy and quick to use. The utility model clamp-type steel strand quick connector uses two springs to clamp the clamp under normal conditions, and then controls the top rod to relax the clamp and clamp the steel wire, which can quickly complete the connection of the steel strand and save the time of connector installation and disassembly.

[0013] 3. The utility model has a compact structure and its outer dimensions can be made relatively small, so that it can easily pass through the anchor hole to complete the cable threading construction.

[0014] The technical features of the clip-type steel strand quick connector of the utility model are further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : The front and sectional view of the clip-type steel strand quick connector of the present utility model.

[0016] Figure 2: A top view of the clip-type steel strand quick connector of the present utility model.

[0017] Figure 3 : Schematic diagram of the anchor sleeve structure of the utility model.

[0018] Figure 4 : Schematic diagram of the connection between the utility model and the guide rod and working steel strand.

[0019] Figure 5 : Schematic diagram of the utility model used in conjunction with a clamp.

[0020] In the figure: 1-guide sleeve, 11-slot hole, 2-top rod, 21-through hole, 3-spring one, 4-anchor sleeve, 5-clip assembly, 6-spring two, 7-set screw, 8-connector.

[0021] P0-the clip-type steel strand quick connector of the utility model, P1-lead rod, P2-working steel strand, P3-clamp. DETAILED DESCRIPTION Embodiment 1:

[0022] A clip-type steel strand quick connector, such as Figure 1-Figure 3 As shown, it includes a connector 8 and a clip-type connection assembly respectively connected to the two ends of the connector. The end of the component of the clip-type connection assembly close to the connector is defined as the inner end, and the end away from the connector is defined as the outer end. The clip-type connection assembly includes a guide sleeve 1, a push rod 2, a spring 1 3, an anchor sleeve 4, a clip assembly 5 and a spring 2 6. The clip assembly 5 is composed of three clips. The inner wall of the clip is provided with a tooth pattern to facilitate clamping the steel wire. The clip assembly 5 is installed in the anchor sleeve 4. The inner end of the anchor sleeve 4 is connected to the connector 8. The spring 2 6 is installed in the anchor sleeve 4. The two ends of the spring 2 6 respectively tighten the clip assembly 5 and the connector 8. The inner end of the guide sleeve 1 is connected to the outer end of the anchor sleeve 4. The push rod 2 is provided with a through hole 21 for the steel strand to pass through. The push rod 2 is located in the guide sleeve 1. The outer end of the sleeve 1 is provided with a U-shaped slot 11 for pushing the push rod 2. A spring 3 is sleeved on the push rod 2. The two ends of the spring 3 respectively press the push rod 2 and the anchor sleeve 4. The outer end of the push rod 2 is pressed tightly in the guide sleeve 1, and the inner end of the push rod 2 is located in the anchor sleeve 4. When there is no external force, the clip assembly 5 is in a clamped state, and the spring 6 contacts the inner end of the clip assembly 5. At this time, the clip assembly 5 is pressed toward the small end of the tapered hole 43 to form an inner hole with a diameter smaller than the diameter of the push rod through hole 21, and also smaller than the diameter of the steel wire to be clamped. The teeth of the clip bite the steel wire, so that the clip assembly can clamp the steel wire.

[0023] In this embodiment, the inner hole of the anchor sleeve 4 is sequentially arranged from the outer end to the inner end to form a spring first mounting hole 41, a small equal diameter hole 42, a tapered hole 43 and a large equal diameter hole 44. The small end diameter of the tapered hole 43 is equal to the small equal diameter hole 42, the large end diameter of the tapered hole 43 is equal to the large equal diameter hole 44, and the diameter of the spring first mounting hole 41 is greater than the diameter of the small equal diameter hole 42. The diameter of the outer end of the anchor sleeve is smaller than the diameter of the middle end and the inner end of the anchor sleeve, and the outer end of the anchor sleeve is connected to the inner end of the guide sleeve by a thread. The inner end of the spring first 3 is located in the spring first mounting hole 41 of the anchor sleeve 4, the inner end of the push rod 2 is located in the small equal diameter hole 42 of the anchor sleeve 4, the clip assembly 5 is installed in the tapered hole 43 and the small equal diameter hole 42 of the anchor sleeve 4, and the spring second 6 is located in the large equal diameter hole 44 of the anchor sleeve 4. The inner end of the anchor sleeve 4 is connected to the connector 8 by threads, that is, the inner wall of the large equal-diameter hole 44 of the anchor sleeve 4 is connected to the connector 8 by threads, and the inner end of the anchor sleeve 4 and the connector 8 are also fixed by a set screw 7.

[0024] In this embodiment, the push rod 2 is a T-shaped structure with an annular baffle disposed at the outer end.

[0025] Assembly Instructions for this Utility Model:

[0026] Step 1: First put the clip assembly 5 into the anchor sleeve 4. The clip assembly 5 is composed of three clips. When assembling, put them neatly into the anchor sleeve 4. The clip assembly 5 cannot have uneven distribution, misalignment, or steps.

[0027] Step 2: Place spring 2 6 into the anchor sleeve 4, then screw the connector 8 into the anchor sleeve 4, compress spring 2 6, tighten the connector 8 and laterally lock the M4 set screw 7 on the anchor sleeve 4. During installation, smooth operation is required to avoid shaking that may cause the clip to be misplaced.

[0028] Step 3: Spring 1 3 is inserted into the push rod 2, and then installed into the anchor sleeve 4 together.

[0029] Step 4: Screw in the guide sleeve 1 to complete the assembly of the clip-type connection component at one end.

[0030] Step 5: Repeat steps 1 to 4 to complete the assembly of the clip-type connection component at the other end.

[0031] Instructions for use of this utility model:

[0032] The utility model can be used together with a clamp, which adopts a clamp with a hinge structure. During operation, the worker holds the handle of the clamp, and when the handle is retracted inward, the clamp head of the clamp is also retracted inward, thereby playing a clamping role; similarly, when the handle is opened outward, the clamp of the clamp is also opened outward.

[0033] When in use, align the U-shaped slot 11 on the guide sleeve 1 with the chuck of the clamp, so that the chuck is placed in the U-shaped slot 11. Figure 5As shown, the clamp is then tightened to push the clamps at both ends toward the connector. The clamps push the push rod 2 to push the clip assembly 5 toward the connector. The clip assembly moves along the large end of the tapered hole in the anchor sleeve 4 and expands. At this time, the clip assembly 5 is in a loose state, and the steel wire can be easily inserted into or removed from the clip assembly. After the steel wire is inserted into place, the clip assembly needs to tighten the steel wire. At this time, the clamp can be loosened. The spring 2 6 will press the clip assembly to bite the steel wire. The steel wire can only be removed by pushing the clip assembly inward through the clamp chuck. The connector is normally in a clamped state.

Claims

1. A clip-type steel strand quick connector, characterized in that: The invention comprises a connecting head (8) and a clip-type connecting assembly respectively connected to both ends of the connecting head, the clip-type connecting assembly comprising a guide sleeve (1), a push rod (2), a spring 1 (3), an anchor sleeve (4), a clip assembly (5) and a spring 2 (6), the clip assembly (5) being composed of three clips, the clip assembly being installed in the anchor sleeve (4), the inner end of the anchor sleeve (4) being connected to the connecting head (8), the spring 2 (6) being installed in the anchor sleeve (4), the two ends of the spring 2 respectively pressing the clip assembly (5) and the connecting head (8). A connector (8), the inner end of the guide sleeve (1) is connected to the outer end of the anchor sleeve, a through hole (21) is formed in the push rod for the steel strand to pass through, the push rod (2) is located in the guide sleeve, and a slot (11) is formed on the outer end of the guide sleeve to facilitate pushing the push rod, a spring (3) is sleeved on the push rod, and the two ends of the spring (1) respectively press against the push rod (2) and the anchor sleeve (4), the outer end of the push rod is pressed against the guide sleeve (1), and the inner end of the push rod is located in the anchor sleeve (4), and when there is no external force, the clip assembly (5) is in a clamped state.

2. The clip-type steel strand quick connector according to claim 1, characterized in that: The inner end of the anchor sleeve is connected to the connecting head via threads, and the inner end of the anchor sleeve and the connecting head are also fixed by a set screw (7).

3. The clip-type steel strand quick connector according to claim 1 or 2, characterized in that: The inner end of the guide sleeve is connected to the outer end of the anchor sleeve through threads.

4. The clip-type steel strand quick connector according to claim 1 or 2, characterized in that: The push rod is a T-shaped structure with an annular baffle plate disposed at the outer end.

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