A new type of trunnion

Abstract

The utility model discloses a novel trunnion, including the trunnion body, the trunnion body both ends are welded with a connecting stud respectively, install locking nut on the connecting stud, the exposed end middle part of connecting stud is equipped with the guide hole. Advantageous effect lies in: the utility model discloses the guide hole is equipped with in the free end central position of connecting stud, and sets up the protection assembly that is formed by the clamping plate, the rotating head, the sliding block, the sliding slot, the mounting plate, the guide post and the bidirectional screw rod in the guide hole one side, so that the trunnion can be in the clamping plate effect in the protection assembly when connecting use is close to locking nut and is positioned, and the free end of connecting stud is covered under the shielding effect after the clamping plate closes, not only make the locking nut place anti -loose effect better, moreover avoided the exposure of connecting stud free end, reduced the risk that the exposed end of connecting stud was corroded, made the connection intensity of the trunnion when long -time use better.

Description

Technical Field

[0001] This utility model relates to the technical field of power cable erection tools, specifically to a novel trunnion. Background Technology

[0002] During the laying of power cables, in order to facilitate the hanging and fixing of power cables on poles and towers, trunnions are needed to connect the fixing parts of the power cables to the poles and towers.

[0003] The existing trunnions used for power cable installation mainly consist of a trunnion body, connecting studs symmetrically installed at both ends of the trunnion body, a locking nut installed on the connecting stud, a washer installed between the locking nut and the trunnion body, and an elastic wire inserted into the free end of the connecting stud. Although the existing trunnions can connect the fixing parts of the power cable to the tower and prevent loosening under the action of the elastic wire, in actual use, the elastic wire is exposed for a long time, which makes it easy to rust, break and fall off. This results in poor anti-loosening performance of the trunnion during long-term use. At the same time, since the free end of the connecting stud is also exposed for a long time, the connecting stud is also easy to rust and be damaged during use, so the connection strength of the trunnion cannot be guaranteed during long-term use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a new type of trunnion that has a good anti-loosening effect and can also cover and protect the free end of the connecting stud, in view of the current situation of the prior art.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a novel trunnion, including a trunnion body, with a connecting stud welded to each end of the trunnion body, a locking nut installed on the connecting stud, a guide hole opened in the middle of the exposed end of the connecting stud, and a protective component made of galvanized steel plate provided on one side of the guide hole, the protective component including a clamping plate, a rotating head, a slider, a slide groove, a mounting plate, a guide post, and a bidirectional lead screw.

[0008] Furthermore, there are two connecting studs, and a limiting shoulder is reserved on the part of the trunnion body that connects to the connecting studs.

[0009] Furthermore, a washer is installed on the connecting stud between the trunnion body and the locking nut, and the washer is made of annular rubber ring material.

[0010] Furthermore, the mounting plate is a rectangular plate, the guide post is formed on the mounting plate, and the guide post slides in conjunction with the guide hole.

[0011] Furthermore, the slide groove is formed in the middle of the side wall of the mounting plate facing the connecting stud, and the bidirectional lead screw is rotatably installed in the slide groove.

[0012] Furthermore, each of the mounting plates has two sliders, which are respectively mounted on two threaded sections with opposite directions of rotation on the bidirectional lead screw.

[0013] Furthermore, the slider is bonded to the corresponding clamping plate, which is an arc-shaped elongated structure.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention features a guide hole at the center of the free end of the connecting stud, and a protective assembly consisting of a clamping plate, a rotating head, a slider, a groove, a mounting plate, a guide post, and a bidirectional lead screw on one side of the guide hole. This allows the trunnion to tighten and limit the locking nut under the action of the clamping plate in the protective assembly during connection and use. At the same time, the free end of the connecting stud is covered by the shielding effect of the clamping plate after it is closed. This not only improves the anti-loosening effect at the locking nut, but also avoids the exposure of the free end of the connecting stud, reducing the risk of corrosion of the exposed end of the connecting stud, and making the connection strength of the trunnion better during long-term use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a novel trunnion described in this utility model;

[0018] Figure 2 This utility model describes a novel trunnion. Figure 1 Enlarged view of point A in the middle.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Protective components; 101. Clamping plate; 102. Rotating head; 103. Slider; 104. Slide groove; 105. Mounting plate; 106. Guide post; 107. Two-way lead screw; 2. Trunnion body; 3. Connecting components; 301. Washer; 302. Connecting stud; 303. Locking nut; 4. Guide hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figures 1-2 As shown, a novel trunnion in this embodiment includes a trunnion body 2, with a connecting stud 302 welded to each end of the trunnion body 2. A locking nut 303 is installed on the connecting stud 302. A guide hole 4 is provided in the middle of the exposed end of the connecting stud 302. A protective component 1 made of galvanized steel plate is provided on one side of the guide hole 4. The protective component 1 includes a clamping plate 101, a rotating head 102, a slider 103, a slide groove 104, a mounting plate 105, a guide post 106, and a two-way lead screw 107. When the trunnion is connected and used, it can tighten and limit the locking nut 303 under the action of the clamping plate 101. At the same time, the free end of the connecting stud 302 is covered by the shielding effect after the clamping plate 101 is closed. This not only improves the anti-loosening effect at the locking nut 303, but also avoids the exposure of the free end of the connecting stud 302, reducing the risk of corrosion of the exposed end of the connecting stud 302, and making the connection strength of the trunnion better during long-term use.

[0023] like Figures 1-2 As shown, in this embodiment, there are two connecting studs 302. A limiting shoulder is also reserved on the part of the trunnion body 2 that is connected to the connecting stud 302. The limiting shoulder can increase the contact area between the trunnion and the pole tower for power cable erection, so that the trunnion is more stable after installation. A washer 301 is also installed on the connecting stud 302 between the trunnion body 2 and the locking nut 303. The washer 301 is made of annular rubber ring material and mainly plays the role of preventing loosening.

[0024] like Figures 1-2 As shown, in this embodiment, the mounting plate 105 is a rectangular plate, and the guide post 106 is formed on the mounting plate 105. The guide post 106 is slidably engaged with the guide hole 4. The engagement of the guide post 106 with the guide hole 4 ensures that the clamping plate 101 can easily approach the locked exposed side. The slide groove 104 is formed in the middle of the side wall of the mounting plate 105 facing the connecting stud 302. The bidirectional lead screw 107 is rotatably installed in the slide groove 104. After the bidirectional lead screw 107 rotates, it will cause the two screws to move under the action of thread transmission. The sliders 103 are close to each other. Each mounting plate 105 has two sliders 103. The two sliders 103 are respectively installed on two threaded sections with opposite directions of rotation on the two-way lead screw 107. When the two sliders 103 are close to each other, they will cover the exposed end of the connecting stud 302, thereby achieving protection at the free end of the connecting stud 302. The sliders 103 are bonded to the corresponding clamping plates 101. The clamping plates 101 are arc-shaped long strip structures, which can ensure that the clamping plates 101 move and adjust synchronously with the sliders 103.

[0025] The specific implementation process of this embodiment is as follows: In use, the trunnion body 2 is first connected to the connector and pole for power cable erection by means of the connecting stud 302 and the locking nut 303. Then, the guide post 106 is inserted into the guide hole 4 until the clamping plate 101 is about to contact the locking nut 303. At this time, the double-acting screw 107 is rotated by the rotating head 102. After the double-acting screw 107 rotates, the clamping plate 101 will cover the exposed end of the connecting stud 302. Then the trunnion can be put into use. During use, the locking nut 303 is tightened and limited by the clamping plate 101 in the protective component 1. At the same time, the free end of the connecting stud 302 is covered by the shielding effect after the clamping plate 101 is closed. This not only makes the anti-loosening effect at the locking nut 303 better, but also avoids the exposure of the free end of the connecting stud 302, reduces the risk of corrosion of the exposed end of the connecting stud 302, and makes the connection strength of the trunnion better during long-term use.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel trunnion, characterized in that: The trunnion body (2) is provided with a connecting stud (302) welded to each end of the trunnion body (2). A locking nut (303) is installed on the connecting stud (302). A guide hole (4) is provided in the middle of the exposed end of the connecting stud (302). A protective component (1) made of galvanized steel plate is provided on one side of the guide hole (4). The protective component (1) includes a clamping plate (101), a rotating head (102), a slider (103), a slide groove (104), a mounting plate (105), a guide post (106), and a two-way lead screw (107).

2. The novel trunnion according to claim 1, characterized in that: There are two connecting studs (302), and a limiting shoulder is reserved on the part of the trunnion body (2) that is connected to the connecting studs (302).

3. The novel trunnion according to claim 2, characterized in that: A washer (301) is also installed on the connecting stud (302) between the trunnion body (2) and the locking nut (303). The washer (301) is made of annular rubber ring material.

4. The novel trunnion according to claim 1, characterized in that: The mounting plate (105) is a rectangular plate, and the guide post (106) is formed on the mounting plate (105). The guide post (106) is slidably engaged with the guide hole (4).

5. A novel trunnion according to claim 4, characterized in that: The groove (104) is formed in the middle of the side wall of the mounting plate (105) facing the connecting stud (302), and the bidirectional lead screw (107) is rotatably installed in the groove (104).

6. A novel trunnion according to claim 5, characterized in that: Each of the mounting plates (105) has two sliders (103), which are respectively mounted on two threaded sections with opposite directions on the bidirectional lead screw (107).

7. A novel trunnion according to claim 6, characterized in that: The slider (103) is bonded to the corresponding clamp (101), and the clamp (101) is an arc-shaped strip structure.

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