Quick-plug drainage clips and quick-plug drainage systems

Abstract

The invention provides a quick-plug-in drainage clamp and a quick-plug-in drainage system. The quick-plug-in drainage clamp comprises a shell, a rotating ring, a fixing nut and a hook head hardware. The shell is cylindrical, the rotating ring is located at the upper end of the shell and is rotatably arranged on the inner wall of the shell, the fixing nut is located below the rotating ring and is fixed on the inner wall of the shell, the upper part of the hook head hardware is a hook-shaped part, the middle part is a columnar part, and the lower part is provided with a female socket assembly, the external thread of the columnar part matches the internal thread of the fixing nut, the lower part of the hook head hardware is axially opened with an inner hole from the bottom end, the female socket assembly comprises an insulating sleeve sleeved on the lower part of the hook head hardware, a compression spring arranged on the top of the inner hole, a telescopic shaft connected to the compression spring and coaxial with the inner hole, and a clamping structure constructed at the lower bottom end of the hook head hardware, a first plug-in space is formed between the inner wall of the insulating sleeve and the outer wall of the lower part of the hook head hardware, and a second plug-in space is formed between the hole wall of the inner hole and the outer wall of the telescopic shaft.

Description

Technical Field

[0001] The invention relates to the technical field of bypass non-stop power supply operation devices, and in particular to a quick-plug-in drainage wire clamp and a quick-plug-in drainage system. Background Art

[0002] With the rapid development and popularization of non-stop power supply operation in distribution network, non-stop power supply projects with bypass as an important support have been widely used. In the actual operation process, it is often encountered that the bypass system is connected to the overhead line. In the relevant technology, in order to connect the bypass cable with the overhead line, it is necessary to install a conversion cable to achieve the connection between the overhead line and the bypass system, which not only increases the time of bypass construction, but also increases the cost of bypass equipment. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a quick-plug-in drainage wire clamp and a quick-plug-in drainage system, which can realize the quick plug-in and pull-out of the bypass cable plug and the drainage wire clamp, and realize the fast and stable connection of the bypass cable and the overhead line at a low cost.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A quick-plug drainage clamp comprises a shell, a rotating ring, a fixing nut and a hook fitting, the shell being cylindrical, the rotating ring being located at the upper end of the shell and being rotatably arranged on the inner wall of the shell, the fixing nut being located below the rotating ring and being fixed on the inner wall of the shell, the upper part of the hook fitting being a hook-shaped part, the middle part being a columnar part, and the lower part being provided with a female socket assembly, the external thread of the columnar part being matched with the internal thread of the fixing nut, the lower part of the hook fitting being provided with an inner hole axially from the bottom end, the female socket assembly comprising an insulating sleeve sleeved on the lower part of the hook fitting, a compression spring arranged on the top of the inner hole, a telescopic shaft connected to the compression spring and coaxial with the inner hole, and a clamping structure constructed at the lower bottom end of the hook fitting, a first plug-in space being formed between the inner wall of the insulating sleeve and the outer wall of the lower part of the hook fitting, and a second plug-in space being formed between the hole wall of the inner hole and the outer wall of the telescopic shaft.

[0006] An outer wall of the rotating ring is provided with an annular first groove along the circumferential direction, and an inner wall of the shell is provided with at least two elastic pins, and the elastic pins are clamped in the first groove.

[0007] A second groove is provided at the top of the upper portion of the hook fitting, and a rubber cover is clamped at the top of the upper portion of the hook fitting through the second groove.

[0008] The female socket assembly also includes at least one crown spring disposed on the inner wall of the inner hole.

[0009] The insulating sleeve is fixed to the hook fitting via a retaining spring.

[0010] The inner wall of the insulating sleeve and the outer wall of the hook fitting are respectively provided with matching plane areas.

[0011] A limiting nut is arranged at the upper end of the telescopic shaft in the inner hole.

[0012] A first insulating cover is installed at the bottom end of the lower part of the hook fitting, and a second insulating cover is installed at the bottom end of the telescopic shaft.

[0013] The inner hole forms an annular structure at the lower end of the hook fitting, and the clamping structure includes at least one dovetail groove opened from the bottom end of the annular structure, an annular groove opened circumferentially on the inner wall of the annular structure, and at least one semicircular groove opened under the annular groove, wherein the lower edge of the annular groove is located below the maximum depth position of the dovetail groove, the semicircular grooves correspond to the dovetail grooves one by one, and the semicircular grooves and the corresponding dovetail grooves are at different circumferential positions.

[0014] A quick-plug drainage system comprises: the quick-plug drainage clamp mentioned above; a male plug assembly, wherein the upper portion of the male plug assembly comprises a first cylindrical plug-in adapted to the first plug-in space, a second cylindrical plug-in adapted to the second plug-in space, and a fixing pin arranged on the second cylindrical plug-in and adapted to the dovetail groove, and the lower portion of the male plug assembly is connected to a bypass cable.

[0015] Beneficial effects of the present invention:

[0016] The present invention provides a structure including a shell, a rotating ring, a fixing nut, and a hook fitting, so that the drainage wire clamp can be conveniently hung on the overhead line, which is convenient and quick to use. By arranging a female socket assembly at the lower part of the hook fitting, the bypass cable plug and the drainage wire clamp can be quickly plugged in and out, and the bypass cable and the overhead line can be quickly and firmly connected at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a quick-plug drainage clamp according to an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of a hook fitting according to an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of the overall structure of a quick plug-in drainage system according to an embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of an insulating sleeve according to an embodiment of the present invention;

[0021] Figure 5 A schematic structural diagram of a clamping structure according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic structural diagram of a quick-plug drainage system after plugging in according to an embodiment of the present invention;

[0023] Figure 7 for Figure 6 Enlarged view of part A.

[0024] Reference numerals:

[0025] Quick-plug drainage clamp 100, male plug assembly 200, bypass cable 300;

[0026] Housing 1, rotating ring 2, fixing nut 3, hook fitting 4, insulating sleeve 5, compression spring 6, telescopic shaft 7, clamping structure 8, first plug-in space 9, second plug-in space 10, elastic pin 11, crown spring 12, retaining spring 13, limit nut 14, dovetail groove 15, annular groove 16, semicircular groove 17, first cylindrical plug-in 18, second cylindrical plug-in 19, fixing pin 20, rubber cover 21, first insulating cover 22, second insulating cover 23, third groove 24, phase sequence color code 25. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 and Figure 2 As shown, the quick-plug drainage clamp 100 of the embodiment of the present invention includes a shell 1, a rotating ring 2, a fixing nut 3 and a hook fitting 4, the shell 1 is cylindrical, the rotating ring 2 is located at the upper end of the shell 1 and is rotatably arranged on the inner wall of the shell 1, the fixing nut 3 is located below the rotating ring 2 and is fixed on the inner wall of the shell 1, the upper part of the hook fitting 4 is a hook-shaped part, the middle part is a columnar part, and the lower part is provided with a female socket assembly, the external thread of the columnar part matches the internal thread of the fixing nut 3, the lower part of the hook fitting 4 is axially provided with an inner hole, the female socket assembly includes an insulating sleeve 5 sleeved on the lower part of the hook fitting 4, a compression spring 6 arranged on the top of the inner hole, a telescopic shaft 7 connected to the compression spring 6 and coaxial with the inner hole, and a clamping structure 8 constructed at the lower bottom end of the hook fitting 4, a first plug-in space 9 is formed between the inner wall of the insulating sleeve 5 and the lower outer wall of the hook fitting 4, and a second plug-in space 10 is formed between the wall of the inner hole and the outer wall of the telescopic shaft 7.

[0029] The quick plug-in drain wire clamp 100 of the embodiment of the present invention can be hung on the overhead wire by providing a hook head fitting 4 with a hook-shaped portion, and the external thread of the columnar portion cooperates with the internal thread of the fixing nut 3, so that when the housing 1 is rotated, the hook head fitting 4 moves axially relative to the housing 1, thereby locking or loosening the overhead wire. Corresponding to the female socket assembly of the quick plug-in drain wire clamp 100, a male plug assembly 200 suitable for insertion can be provided, referring to Figure 3 The bypass cable 300 is inserted into the female socket assembly of the quick-plug drainage clamp 100 through the male plug assembly 200, so that the bypass cable 300 can be quickly connected to the overhead line.

[0030] In one embodiment of the present invention, the outer wall of the rotating ring 2 may be provided with a first annular groove along the circumferential direction, and the inner wall of the outer shell 1 is provided with at least two elastic pins 11, and the elastic pins 11 are stuck in the first groove. Therefore, the rotating ring 2 can rotate circumferentially in the outer shell 1 but cannot move axially, ensuring that the overhead line is firmly locked between the upper end surface of the rotating ring 2 and the hook-shaped portion.

[0031] In one embodiment of the present invention, Figure 1 As shown, the female socket assembly may further include at least one crown spring 12 disposed on the inner wall of the inner hole, which can reduce the contact resistance when the quick-plug drainage clamp 100 is connected to the male plug assembly 200 and enhance the conductivity.

[0032] like Figure 1 As shown, the insulating sleeve 5 can be fixed to the hook fitting 4 by a retaining spring 13, and the retaining spring 13 can be made of plastic. Figure 1 , Figure 2 and Figure 4 As shown, the inner wall of the insulating sleeve 5 and the outer wall of the hook fitting 4 may be respectively provided with matching plane areas a and b, which can effectively prevent the insulating sleeve 5 from rotating relative to the hook fitting 4.

[0033] like Figure 1 As shown, a limit nut 14 may be provided at the upper end of the telescopic shaft 7 in the inner hole, and the telescopic shaft 7 is divided into three sections with decreasing diameters from top to bottom, so as to form a first flange at the upper end, and a second flange is also formed below the first flange. The cooperation between the limit nut 14 and the first flange can enable the telescopic shaft 7 to remain in the set position under the downward elastic force of the compression spring 6, and the second flange can lift the telescopic shaft 7 when the male plug assembly 200 is inserted into the female socket assembly. In other embodiments of the present invention, the second flange may not be provided, and the male plug assembly 200 can lift the telescopic shaft 7 through the bottom end of the telescopic shaft 7.

[0034] like Figure 3 and Figure 5As shown, the inner hole forms an annular structure at the lower end of the hook fitting 4, and the clamping structure 8 includes at least one dovetail groove 15 opened from the bottom end of the annular structure, an annular groove 16 opened along the circumferential direction on the inner wall of the annular structure, and at least one semicircular groove 17 opened under the annular groove 16, wherein the lower edge of the annular groove 16 is located below the maximum depth position of the dovetail groove 15, the semicircular groove 17 corresponds to the dovetail groove 15 one by one, and the semicircular groove 17 and the corresponding dovetail groove 15 are at different circumferential positions. In a specific embodiment of the present invention, as Figure 5 As shown, there are two dovetail grooves 15, which are opened at an angle of 180° on the circumference of the annular structure. There are also two semicircular grooves 17, and each semicircular groove 17 is opened at an angle of 90° with the corresponding dovetail groove 15 on the circumference of the annular structure.

[0035] like Figure 6 and Figure 7 As shown, the upper part of the male plug assembly 200 includes a first cylindrical plug-in 18 adapted to the first plug-in space 9, a second cylindrical plug-in 19 adapted to the second plug-in space 10, and a fixing pin 20 arranged on the second cylindrical plug-in 19 and adapted to the dovetail groove 15, and the lower part of the male plug assembly 200 is connected to the bypass cable 300.

[0036] When the male plug assembly 200 is inserted into the female socket assembly of the quick-plug drainage clamp 100, the fixing pin 20 is aligned with the dovetail groove 15 and enters the dovetail groove 15. The top end of the second cylindrical plug-in 19 lifts the telescopic shaft 7 through the second flange of the telescopic shaft 7, and the compression spring 6 is compressed back. When the fixing pin 20 touches or is about to touch the maximum depth position of the dovetail groove 15 and the fixing pin 20 passes over the lower edge of the annular groove 16, the male plug assembly 200 is rotated 90°. Under the elastic force of the compression spring 6, a downward force is applied to the top end of the second cylindrical plug-in 19 through the second flange of the telescopic shaft 7, so that the male plug assembly 200 moves downward, so that the fixing pin 20 is firmly stuck in the semicircular groove 17, so as to achieve a stable connection between the male plug assembly 200 and the quick-plug drainage clamp 100, thereby completing the quick insertion. On the contrary, when the male plug assembly 200 is pulled out from the female socket assembly of the quick-plug drainage wire clamp 100, the male plug assembly 200 is gently pushed upward and then rotated 90 degrees to complete the quick pull-out.

[0037] In addition, if Figure 1As shown, the upper top of the hook fitting 4 may be provided with a second groove, and the upper top of the hook fitting 4 may be clamped with a rubber cover 21 through the second groove. The lower bottom of the hook fitting 4 may be installed with a first insulating cover 22, and the bottom end of the telescopic shaft 7 may be installed with a second insulating cover 23. The rubber cover 21, the first insulating cover 22, and the second insulating cover 23 may all be insulated, wherein the first insulating cover 22 and the second insulating cover 23 may effectively prevent the human hand from touching the conductive metal parts of the hook fitting 4 and the telescopic shaft 7 when the male plug assembly 200 is plugged in or out. In a specific embodiment of the present invention, the rubber cover 21, the first insulating cover 22, the second insulating cover 23, and the above-mentioned housing 1 and insulating sleeve 5 may all be made of insulating rubber.

[0038] like Figure 4 As shown, the outer wall of the insulating sleeve 5 is also provided with an annular third groove 24. Figure 1 As shown, the third groove 24 is used to install the phase sequence color code 25 so as to identify different phase sequences by different colors.

[0039] In summary, the quick-plug-in drainage clamp according to the embodiment of the present invention can be conveniently hung on the overhead line through the structure including the outer shell, the rotating ring, the fixing nut and the hook fitting, and is convenient and quick to use. By arranging the female socket assembly at the lower part of the hook fitting, the bypass cable plug and the drainage clamp can be quickly plugged in and out, and the bypass cable and the overhead line can be quickly and firmly connected at a low cost.

[0040] Based on the quick-plug-in drainage clamp of the above embodiment, the present invention further provides a quick-plug-in drainage system.

[0041] Reference Figure 3 , Figure 6 and Figure 7 The quick-plug drainage system of the embodiment of the present invention includes the quick-plug drainage clamp 100 of the above embodiment, and also includes a male plug assembly 200. The upper part of the male plug assembly 200 includes a first cylindrical plug 18 adapted to the first plug-in space 9, a second cylindrical plug 19 adapted to the second plug-in space 10, and a fixing pin 20 arranged on the second cylindrical plug 19 and adapted to the dovetail groove 15. The lower part of the male plug assembly 200 is connected to the bypass cable 300. For more specific implementations, please refer to the above embodiments, which will not be repeated here.

[0042] The quick plug-in drainage system according to the embodiment of the present invention can realize the quick plug-in and pull-out of the bypass cable plug and the drainage wire clamp, and realize the quick and stable connection between the bypass cable and the overhead line at a low cost.

[0043] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A quick-plug drainage clamp, characterized in that: The invention comprises a shell, a rotating ring, a fixing nut and a hook fitting, wherein the shell is cylindrical, the rotating ring is located at the upper end of the shell and is rotatably arranged on the inner wall of the shell, the fixing nut is located below the rotating ring and is fixed on the inner wall of the shell, the upper part of the hook fitting is a hook-shaped part, the middle part is a columnar part, and the lower part is provided with a female socket assembly, the external thread of the columnar part matches the internal thread of the fixing nut, the lower part of the hook fitting is provided with an inner hole axially from the bottom end, the female socket assembly comprises an insulating sleeve sleeved on the lower part of the hook fitting, a compression spring arranged on the top of the inner hole, a telescopic shaft connected to the compression spring and coaxial with the inner hole, a clamping structure constructed at the lower bottom end of the hook fitting, the inner wall of the insulating sleeve is connected to the inner hole, and the inner hole of the inner hole is connected to the inner hole of the inner hole. A first plug-in space is formed between the lower outer walls of the hook fitting, and a second plug-in space is formed between the inner hole wall and the outer wall of the telescopic shaft, the inner hole forms an annular structure at the lower bottom end of the hook fitting, and the clamping structure includes two dovetail grooves opened from the bottom end of the annular structure, an annular groove opened circumferentially on the inner wall of the annular structure, and two semicircular grooves opened under the annular groove, wherein the lower edge of the annular groove is located below the maximum depth position of the dovetail groove, the semicircular grooves correspond to the dovetail grooves one by one, and the semicircular grooves and the corresponding dovetail grooves are at different circumferential positions, the two dovetail grooves are opened at an angle of 180° in the circumferential direction of the annular structure, and each semicircular groove is opened at an angle of 90° with the corresponding dovetail groove in the circumferential direction of the annular structure.

2. The quick-plug drainage clamp according to claim 1, characterized in that: An outer wall of the rotating ring is provided with an annular first groove along the circumferential direction, and an inner wall of the shell is provided with at least two elastic pins, and the elastic pins are clamped in the first groove.

3. The quick-plug drainage clamp according to claim 1, characterized in that: A second groove is provided at the top of the upper portion of the hook fitting, and a rubber cover is clamped at the top of the upper portion of the hook fitting through the second groove.

4. The quick-plug drainage clamp according to claim 1, characterized in that: The female socket assembly also includes at least one crown spring disposed on the inner wall of the inner hole.

5. The quick-plug drainage clamp according to claim 1, characterized in that: The insulating sleeve is fixed to the hook fitting via a retaining spring.

6. The quick-plug drainage clamp according to claim 1, characterized in that: The inner wall of the insulating sleeve and the outer wall of the hook fitting are respectively provided with matching plane areas.

7. The quick-plug drainage clamp according to claim 1, characterized in that: A limiting nut is arranged at the upper end of the telescopic shaft in the inner hole.

8. The quick-plug drainage clamp according to claim 1, characterized in that: A first insulating cover is installed at the bottom end of the lower part of the hook fitting, and a second insulating cover is installed at the bottom end of the telescopic shaft.

9. A quick plug-in drainage system, characterized in that: include: The quick-plug drain clip according to claim 1; A male plug assembly, the upper part of which includes a first cylindrical plug-in adapted to the first plug-in space, a second cylindrical plug-in adapted to the second plug-in space, and a fixing pin arranged on the second cylindrical plug-in and adapted to the dovetail groove, and the lower part of the male plug assembly is connected to a bypass cable.

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