CN2487128Y - RF Transmission Cable Clamping Device - Google Patents

Abstract

A clamping device for radio frequency transmission cable comprises an annular body, and a clamping seat and a guide seat which are formed at two opposite ends of the annular body, wherein two grooves are axially oppositely formed on the clamping seat to form two clamping piece parts which are mutually opposite, and each clamping piece part is respectively inwards oppositely connected with a spring piece part for the insertion of a cable shaft core. The utility model discloses the axle diameter scope that can press from both sides the cable axle core is great to can provide better clamping-action, and transmission effect is good.

Description

RF Transmission Cable Clamping Device

The utility model relates to a clamping device for radio frequency transmission cables.

As shown in Figure 1, the three-dimensional exploded view of the known cable joint, the joint 1 can be used for two-way insertion of cables, and has a shell 10 made of copper material, and an axially penetrating container is formed inside the shell 10. Chamber 11, and a hollow insulating sleeve 12 is embedded in the chamber 11, which is used for a clamping device 13 punched into a certain bent shape to plug in. As shown in the three-dimensional exploded view of the known cable splitter in Figure 2, the splitter 2 has an input end 21 and two output ends 22 electrically connected, and the internal configuration of each end is roughly the same as the aforementioned joint 1, and also has A clamping device 24 is used for signal transmission, the difference is that the clamping device 24 has a welding end 241, and an insulating sleeve 25 covering the clamping device 24 is also slightly different from the aforementioned insulating sleeve 12, Other than that, the conduction principle is the same.

As shown in Figures 1 and 3, the known clamping device 13 has two metal sheets 130 and a fixing clip 131 is buckled at the center of the sheet 130, so that the two contact edges 132 of the clamping device 13 can be formed by the fixing clip 131. Opening and closing with a limited angle in the center is usually suitable for clamping the cable core with a specification of φ0.6mm～φ1.0mm; when the cable is inserted into the joint 1, the cable core 14 stretches the contact edge 132 outward And close to it, so that the signal can pass through to achieve the purpose of signal transmission; and when the shaft core 14 is disengaged, the clamping device 13 uses the elastic force of its own material to make the contact edge 132 clamp inward again. Return to the original position.

However, although the known clamping devices 13 and 24 can conduct signals, they still have the following disadvantages in use:

1. The shaft cores of commercially available cables have shaft diameters of various specifications. After cables with larger shaft diameters are inserted and used, it is easy to make the clamping devices 13 and 24 exceed the elastic limit of their materials, resulting in These contact ends 132, 242 cannot return to their original positions, and, if the shaft core 14 with a smaller shaft diameter is inserted into the joint 1 and the output and input ends 22, 21 under the above circumstances, the tightness of the contact Will be greatly reduced, and affect the transmission quality.

2. Moreover, since the known clamping devices 13, 24 are made of two metal sheets 130 and 240 respectively, and the cable shaft cores are mostly circular structures, only the contact edges 132, 242 and 242 are used for insertion. The surface contact of the cable core 14 transmits signals in a "point-to-point" contact mode. The contact surface is extremely small, which is prone to poor contact and poor signal transmission quality.

The purpose of the utility model is to provide a clamping device for radio frequency transmission cables, which can clamp cables with a larger shaft diameter range, and can provide better clamping effect and good transmission effect.

In order to achieve the above purpose, the utility model provides a radio frequency transmission cable clamping device, comprising: a ring-shaped body and a clamping seat and a guide seat formed at opposite ends of the ring-shaped body, characterized in that:

The clamping seat is axially oppositely provided with two grooves to form two opposing clamping pieces, and each clamping piece is oppositely connected inwardly to a spring piece for insertion of the cable shaft core.

The radio frequency transmission cable clamping device is characterized in that: the clip parts are arc-shaped, and the elastic parts are also arc-shaped, and an arc-shaped opening with an axial opening is formed in the annular body. aisle.

The radio frequency transmission cable clamping device is characterized in that each groove has a closed end and an open end.

The radio frequency transmission cable clamping device is characterized in that each elastic piece part has a fixed end connected with the clip part, and a free end corresponding to the fixed end, and each elastic piece part is close to A bent reinforcing rib is provided at the free end.

The radio frequency transmission cable clamping device is characterized in that: the guide seat can also be provided with two opposite grooves along the axial direction, so as to form two opposite clip parts, and the clip parts are connected to each other. A shrapnel department.

To sum up, the utility model radio frequency transmission cable clamping device has the following functions and advantages:

1. Since the active force can be dispersed, the burden of each elastic piece 54 can be reduced, and it can be ensured that each clip 50 and each elastic piece 54 can be maintained within the elastic limit of its own material, Avoid the phenomenon that after the shaft core 15 with a larger shaft diameter is pulled out, each clip part 50 and each elastic part 54 can return to the initial position without elastic fatigue, thereby generating a fixed holding force, ensuring the transmission quality, and achieving It is suitable for the purpose of shaft cores with different shaft diameters.

2. In addition, the clip parts 50 and the elastic parts 54 are arc-shaped, and are in a covering shape, and the space surrounded by the insertion space 52 and the two arc-shaped elastic parts 54 is in the shape of a channel , combined with the circular structure of most cable cores, not only can greatly increase the contact area, but also increase its contact length at the same time, which is different from the known "point-to-point" contact mode, and becomes a "face-to-face" contact mode, providing a more For smooth signal circulation, it can also avoid excessive signal loss.

3. Moreover, when the cable shaft core 14 is inserted into the insertion space 52, because it is a covered channel, it has a better clamping effect, which can effectively limit the diameter of the cable shaft core 14. If the displacement in the direction is affected by external force and vibrates, the cable shaft core 1 will not be separated from the clamping device 3 .

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Brief description of the diagram:

Fig. 1 is a three-dimensional exploded view of a known cable female connector.

Fig. 2 is a three-dimensional exploded schematic diagram of a known cable splitter.

Fig. 3 is a cross-sectional view of a known cable female connector.

Fig. 4 is a three-dimensional exploded view of a preferred embodiment of the present invention.

Fig. 5 is a sectional view of a preferred embodiment of the present invention.

Fig. 6 is a sectional view of another preferred embodiment of the present invention.

Fig. 7 is a cross-sectional view of a shaft core with a small shaft diameter inserted in the utility model.

Fig. 8 is another direction top view of the utility model inserting the small shaft diameter.

Fig. 9 is a cross-sectional view of the shaft core inserted with a larger shaft diameter of the present invention.

Fig. 10 is a top view from another direction of the utility model inserting a larger shaft diameter.

Fig. 11 is a perspective view of another embodiment of the utility model.

As shown in Figures 4 and 5, the clamping device 3 of a radio frequency cable in a preferred embodiment of the present utility model is also equipped with an insulating sleeve 12 identical to the aforementioned known clamping device 13 on its outside, and together with the insulating sleeve 12 And the clamping device 3 is plugged in the aforementioned housing 10, which can be inserted and combined with the shaft core 14 of a cable, so that the signal can be transmitted through the clamping device 3. The clamping device 3 includes an annular body 4 , a clamping seat 5 and a guiding seat 6 .

The annular body 4 has a first end 41 and a second end 42 opposite to each other, and two positioning pieces 43 symmetrically arranged on both sides of the body 4. The positioning pieces 43 are used to limit the clamping device 3 to an insulating sleeve 12. relative position within.

The clamping seat 5 has two opposing clamping pieces 50, each of which is arc-shaped and radially opposite to each other and is arranged at the first end 41, and extends away from the second end 42. In a cladding shape, the two clip parts 50 define an insertion space 52 with an axial opening 51, and the outer edge of each clip part 50 forms two grooves 53 along the length direction of the body 4, and each groove 53 has A closed end 531 close to the body 4 and an open end 532 close to the opening 51, and each clip part 50 is respectively punched inward to form a curved elastic part 54, each elastic part 54 has a The fixed end 541 connected to the clip part 50, a free end 542 opposite to the fixed end 541, and a reinforcing rib 543 disposed close to the free end 542, the fixed end 541 is between the free end 542 and the insertion space between the openings 51 of the insertion space 52 , but the fixed end 541 of the elastic part 54 can also be disposed away from the opening 51 of the insertion space 52 .

The guide seat 6 is arranged on the second end 42 of the body 4 along the length direction of the body 4 to transmit the signal outward. The guide seat 6 includes two clip parts 50 with the same structure as the above, for The cable shaft core is bidirectionally butted; and another embodiment is shown in Figure 6, the clamping device 3 is arranged in the input end 21 and the output end 22 of the above-mentioned known splitter 2, and the connecting seat 6 has a connecting rod 61 which can Used for welding, this embodiment is for one-way insertion of the cable shaft core 14 .

As shown in Figures 7 and 8, when the clamping device 3 is inserted with the shaft core 14 of the cable, the elastic piece 54 on each clamping piece 50 is displaced outward with the fixed end 541 as the fulcrum, and at the same time, each A clip portion 50 is also slightly spread out centered on the closed end 531 of the groove 53 due to the force support, and the effect of clamping can be strengthened by the reinforcing rib 543; when the cable shaft core 14 is pulled out, The clip portion 50 and the elastic portion 54 are restored to their original shape by their own elastic force.

As shown in Figures 9 and 10, when the shaft core 15 with a larger shaft diameter is inserted, the clip parts 50 and the elastic parts 54 are supported by external force at the same time and are displaced outwards to open, wherein the clip parts 50 The fulcrums of the stretching displacement of the elastic piece 54 are not located at the same point, but are respectively the closed end 531 of the groove 53 and the fixed end 541 of the elastic piece 54 , so that the force can be shared with each other.

In view of the above, when the cable shaft core 14 with a smaller shaft diameter is inserted, almost only the elastic parts 54 have an opening and closing action, and the effect of the clip parts 50 is less obvious, while the cable 15 with a larger shaft diameter is inserted. When set up, each clip part 50 and elastic part 54 are in an outwardly opened state.

In addition, as shown in Figure 11, in order to facilitate the connection of multiple clamping devices to form a multi-directional communication mode, a ring-shaped body 4 can be respectively connected to the opposite end edges of a connecting piece 7, and each ring-shaped body 4. Extending a clamping seat 5 away from each other can also achieve the above-mentioned functions. At the same time, at least one connecting hole (not shown) can be provided on the connecting piece 7 to connect with another clamping device 3 to achieve simultaneous multi-directional connection.

In view of the above, the structural features of the present invention can indeed provide a practical RF transmission cable clamping device.

Claims (5)

1, a kind of radio frequency transmission cable clip means comprises: an annular body and be formed at a clamping connection seat and the conduction seat that this annular body deviates from two ends mutually is characterized in that:

This clamping connection seat place opposes vertically and offers two grooves, and to form two clip portion of mutual opposition, this each clip portion inwardly opposes respectively and holds in the mouth the shell fragment portion that is connected with.

2, according to the described radio frequency transmission cable of claim 1 clip means, it is characterized in that: this each clip portion is a circular arc, and this each shell fragment portion also is circular arc, forms a circular-arc passage with axially open in this annular body.

3, according to the described radio frequency transmission cable of claim 1 clip means, it is characterized in that: this each groove all has a blind end and an openend.

4, according to the described radio frequency transmission cable of claim 1 clip means, it is characterized in that: this each shell fragment portion all has one and holds in the mouth the stiff end that connects mutually with clip portion, and with the corresponding free end of this stiff end, and this each shell fragment portion near this free end be provided with one the bending ribs.

5, according to the described radio frequency transmission cable of claim 1 clip means, it is characterized in that: this conduction seat opposes vertically and offers two grooves, forming two opposed clip portion, and connects a shell fragment portion in this each clip portion uplink.

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