A vertical type thread guiding heart-shaped ring

Abstract

The utility model relates to a perpendicular type thread picking heart -shaped ring, including body, briquetting, U -shaped bolt and connecting bolt, body one side is equipped with recess, briquetting is fixed in recess department through U -shaped bolt, and briquetting and recess's position correspond, body end portion is equipped with symmetrical round hole, and connecting bolt is installed in round hole inside. The device increases the wire fixing function on the heart -shaped ring, and the wire is forcedly led away from the grounding body in the vertical direction along the plane of the heart -shaped ring, increases the wire lead -out angle, effectively guarantees the safety distance between the wire and the grounding body, avoids the occurrence of the clearance discharge and short circuit etc. Also avoid the problem that the lead -out direction of the jumper of the double branch power supply wire delta connecting plate is inconsistent or interferes.

Description

Technical Field

[0001] This utility model relates to the field of circuit equipment technology, specifically to a vertical wire-picking heart-shaped ring. Background Technology

[0002] Currently, when using pre-stretched tension clamps for auxiliary conductors in electrified railways, the existing heart-shaped rings cannot secure the conductors, and the conductor lead-out angle depends on the location of the anchor point at a relatively far distance. Furthermore, because the conductor is not tensioned between the lead-out point and the anchor point, it is in a slack state, resulting in a small and variable lead-out angle. This leads to an uncertain safe distance between the energized conductor and the grounding electrode, which can easily cause accidents.

[0003] In practical use, under ideal conditions, after the conductor passes through the heart-shaped ring, it gradually moves away from its original axis, maintaining a safe distance from the grounding electrode. However, in special circumstances, after the live conductor passes through the heart-shaped ring, due to the location of the far-end fixing point and the sag of the jumper wire, the live conductor may not move away from its original axis and may even come close to the grounding electrode at the other end of the insulator. This insufficient safe distance can easily lead to accidents.

[0004] Chinese utility model patent CN 204222681 discloses a heart-shaped ring for fixing the lead-out angle of a wire. The heart-shaped ring consists of a body, a pressure block, U-bolts, and connecting bolts. The body of the heart-shaped ring has a U-shaped groove in the middle, with the bottom arc of the groove forming a heart-like shape centered at the end of the body. Symmetrical circular holes are located near the ends on both sides of the U-shaped structure, and bolts are installed in these holes. One sidewall of the U-shaped structure extends to the side, with an edge that is a nearly semi-circular straight groove. A pressure block with an inner groove is located at the groove, and the groove of the pressure block is opposite to the groove in the body, connected by a set of U-bolts.

[0005] Based on the above technical solutions, it can be analyzed that, under existing technical conditions, if the jumper wires led out from the tension clamps of the dual power supply lines need to deflect upwards or downwards in the same direction, a corner connector needs to be added between the triangular connecting plate and the pre-twisted tension clamp to twist the pre-twisted tension clamp by 90°. It can be determined that, in actual use, adding the corner connector significantly increases the number of parts and the workload of on-site installation (adding 4 sets), resulting in higher parts costs and installation time. Utility Model Content

[0006] This invention provides a vertical heart-shaped thread-taking ring to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0008] During actual installation, the vertical wire-leading heart-shaped ring is first fixed to the external structure, such as the pre-twisted tension clamp, through the symmetrical circular holes at the end of the main body. Then, the tail of the conductor is inserted into the near-semi-circular groove of the main body's reinforcing plate, aligning the conductor with the axis of the guide groove. Finally, U-bolts are used to press the grooved pressure block on the outside of the conductor, completing the orientation and fixation of the conductor. In use, the vertical extension of the main body's reinforcing plate and the locking action of the pressure block force the conductor to be led out along the vertical direction of the plane containing the heart-shaped ring.

[0009] The advantages of this utility model over the prior art are as follows:

[0010] Compared to existing products, its advantages are: it can achieve vertical deflection of two power supply lines in the same direction without the need for additional corner connectors, reducing the number of parts and installation time; it can fix the lead-out angle of the conductor, ensuring a safe distance between the live conductor and the grounding body and avoiding accidents; the pressure block locking structure can serve as a tension backup, improving overall safety. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0012] Figure 1 A perspective view of an embodiment of this utility model;

[0013] Figure 2 This is a schematic diagram of an explosive structure provided by an embodiment of the present invention;

[0014] Figure 3 A cross-sectional schematic diagram of an embodiment of this utility model;

[0015] Figure 4 A schematic diagram illustrating the usage state of an embodiment of this utility model;

[0016] Figure 5 for Figure 4 A magnified view of A in the middle.

[0017] Figure label:

[0018] 1. Body; 2. Pressure block; 3. U-bolt; 4. Connecting bolt; 5. Groove; 6. Round hole; 7. U-groove; 8. Rib plate; 9. Inner groove; 10. Nut; 11. Cylindrical space; 12. Wire; 13. Core of wire. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0022] In this utility model, the problem that traditional heart-shaped rings in the prior art cannot orient the conductor is addressed by structural design. The wire take-up structure adopts a pressure block locking structure, which can serve as a backup for tension clamps, increasing the safety of pre-twisted tension clamps. This has great market value and practical value.

[0023] The embodiments of the vertical plug-in bell device of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] See Figure 1-5This utility model discloses a vertical wire-leading heart-shaped ring for use in pre-twisted tension clamps of electrified railway contact networks to achieve directional lead-out and fixation of conductor 12. It includes a body 1, a pressure block 2, U-bolts 3, and connecting bolts 4. The body 1 has a U-shaped structure with a U-shaped groove 7 in the middle. The bottom arc of the U-shaped groove 7 is a heart-shaped structure with its center located at the end of the body 1. Symmetrical circular holes 6 are provided on both sides of the U-shaped structure near the end. Two connecting bolts 4 are installed in the circular holes 6 to connect the body 1 to the external structure.

[0025] One side wall of the body 1 is provided with a rib plate 8 extending in a direction perpendicular to the plane of the body 1 (i.e., perpendicular to the plane of the U-shaped groove 7 of the body 1). The edge of the rib plate 8 is provided with a nearly semi-circular groove 5. The groove 5 forms a groove 5 on one side of the body 1. The inner side of the pressure block 2 is provided with an inner groove 9 that matches the groove 5. The inner groove 9 is arranged opposite to the groove 5, and the pressure block 2 is fixed to the groove 5 by a U-bolt 3 (the open end of the U-bolt 3 passes through the corresponding mounting holes of the pressure block 2 and the body 1, and is locked by a nut 10 to fix the pressure block 2 and the body 1). The space formed by the inner groove 9 of the pressure block 2 and the groove 5 of the body 1 is adapted to the outer diameter of the wire 12.

[0026] The center line of the groove 5 and the line connecting the center of the bottom arc of the U-shaped groove 7 to the symmetrical circular holes 6 on both sides of the U-shaped structure form an angle that matches the lead-out angle of the wire 12.

[0027] The installation process before use is as follows: Place the wire 12 in the groove 5 of the body 1, align the inner groove 9 of the pressure block 2 with the groove 5 and cover the wire 12, pass the U-bolt 3 through the corresponding mounting holes of the pressure block 2 and the body 1, and then lock it with the nut 10 to fix the wire 12. Then connect and fix the body 1 to the external structure with the connecting bolt 4.

[0028] In use, the wire 12 can be forcibly fixed by the cooperation of the pressure block 2 and the groove 5 of the body 1 and the locking of the U-bolt 3, ensuring that the wire 12 is led out along the axis of the groove 5, which solves the problem of the traditional heart-shaped ring being unable to be oriented; the extension of the stiffener 8 in the vertical direction allows the wire 12 to be led out in the vertical direction of the plane where the heart-shaped ring is located, effectively increasing the safe distance between the wire 12 and the grounding body, avoiding accidents such as gap discharge and short circuit; at the same time, the heart-shaped structure of the U-shaped groove 7 can reduce the stress concentration of the wire 12, and the symmetrically arranged connecting bolts 4 ensure the stress balance of the overall structure. The locking structure of the pressure block 2 can also serve as a tension backup to increase safety, and no additional corner connectors are required, reducing the number of parts and installation time.

[0029] In summary, the vertical lead-out ring 13 of this utility model, through its specific structural design, achieves reliable directional lead-out and fixation of the conductor 12, significantly improving the safety, stability and ease of installation of the pre-twisted tension clamp.

[0030] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical heart-shaped thread pick, characterized in that, It includes the body (1), pressure block (2), U-bolt (3) and connecting bolt (4); The main body (1) has a groove (5) on one side, and the pressure block (2) is fixed to the groove (5) by a U-bolt (3), and the position of the pressure block (2) corresponds to that of the groove (5); The body (1) has symmetrical circular holes (6) at its end, and the connecting bolts (4) are installed in the circular holes (6).

2. The vertical thread-taking heart-shaped ring according to claim 1, characterized in that, The main body (1) has a U-shaped groove (7) in the middle, and the bottom arc of the U-shaped groove (7) is a heart-shaped structure with its center located at the end of the main body (1).

3. The vertical thread-taking heart-shaped ring according to claim 1, characterized in that, The body (1) is a U-shaped structure, and symmetrical circular holes (6) are provided on both sides of the U-shaped structure near the ends.

4. The vertical heart-shaped thread-taking ring according to claim 1, characterized in that, One side wall of the body (1) is provided with a stiffening plate (8) perpendicular to the side of the body (1), and the edge of the stiffening plate (8) is provided with a nearly semi-circular groove (5).

5. The vertical thread-picking core (13) shaped ring according to claim 4, characterized in that, The inner side of the pressure block (2) is provided with an inner groove (9) that is adapted to the groove (5), and the inner groove (9) is arranged opposite to the groove (5).

6. The vertical heart-shaped thread-taking ring according to claim 4, characterized in that, The center line of the groove (5) and the line connecting the center of the bottom arc of the U-shaped groove (7) to the symmetrical circular holes (6) on both sides of the U-shaped structure form an angle that matches the lead-out angle of the conductor (12).

7. The vertical heart-shaped thread-picking ring according to claim 1, characterized in that, After the open end of the U-bolt (3) passes through the corresponding mounting holes of the pressure block (2) and the body (1), it can be locked by the nut (10) to fix the pressure block (2) and the body (1).

8. The vertical heart-shaped thread-taking ring according to claim 1, characterized in that, The number of connecting bolts (4) is two, which are respectively installed in the symmetrical circular holes (6) on both sides of the U-shaped structure to realize the connection between the body (1) and the external structure.

9. The vertical heart-shaped thread-taking ring according to claim 4, characterized in that, The extension direction of the stiffener (8) is perpendicular to the plane of the U-shaped groove (7) of the body (1).

10. The vertical thread-taking heart-shaped ring according to claim 5, characterized in that, The space formed by the inner groove (9) of the pressure block (2) and the groove (5) of the body (1) is a cylindrical space (11).

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