CN207800948U - Seal assembly and insulator arrangement wire clamp comprising it - Google Patents

Abstract

The utility model provides a kind of seal assembly and the insulator arrangement wire clamp comprising it.Seal assembly is used for water-tight equipment wire clamp, and pole is equipped on device clamp.Seal assembly includes seal casinghousing, sealing shroud and preceding sealing cover.There is the accommodating cavity for housing device clamp, the bottom of seal casinghousing there is sealing shroud accommodating hole, one end of seal casinghousing to have preceding seal in seal casinghousing.Sealing shroud is equipped with pole accommodating hole, and pole accommodating hole is used to house the end of thread of pole.Sealing shroud is sealedly attached to sealing shroud accommodating hole.Preceding seal cap sealing is connected to preceding seal, and preceding sealing cover is equipped with the sealed entry for making cable enter.Device clamp is integrally located in seal casinghousing, and seal assembly can carry out device clamp preferably to seal and protect.The sealing performance of device clamp is improved, but also the surface of device clamp is not oxidizable, is not easy to that electrochemical corrosion occurs, improves the service life of device clamp.

Description

Sealing assembly and insulating equipment cord clamp including same

technical field

The utility model relates to an equipment wire clip, in particular to a sealing component and an insulating equipment wire clip containing it.

Background technique

The transformer is the main equipment in the power distribution system, and the equipment clamp is used for the connection between the transformer and the cable, which plays a key role in the safe operation of the power transmission and distribution system.

In the prior art, after the equipment clamp is connected to the cable and the pole of the transformer, the joint is usually only covered with a sheath, which has poor sealing performance and cannot prevent moisture from contacting the equipment clamp. After long-term use, The surface of the equipment clamp is easily oxidized. In addition, when different conductor materials are connected, electrochemical corrosion is prone to occur, and the service life of the equipment clamp is short.

To sum up, the equipment line clamps in the prior art have the defects of poor sealing performance and short service life of the equipment line clamps.

Utility model content

The technical problem to be solved by the utility model is to provide a sealing assembly and an insulated equipment clamp containing it to overcome the defects of poor sealing performance and short service life of the equipment clamp in the prior art.

The utility model solves the problems of the technologies described above through the following technical solutions:

A sealing assembly is used for sealing equipment clamps, the equipment clamp is pierced with a holding rod, and the holding rod has a threaded end and a porcelain bottle end along the height direction, and the feature is that the sealing assembly includes:

The sealed housing has an accommodating cavity inside, and the accommodating cavity is used to accommodate the equipment clamp. The bottom of the sealed housing has a sealing sleeve accommodating hole. One end of the sealed housing It has a front sealing port, and the front sealing port and the sealing sleeve accommodating hole are all in communication with the accommodating cavity;

A sealing sleeve, the sealing sleeve is provided with a holding hole for holding the rod, and the holding hole is used to accommodate the threaded end of the holding rod, and the sealing sleeve is sealed and connected to the sealing sleeve holding hole;

The front sealing cover is sealed and connected to the front sealing port, and the front sealing cover is provided with a sealing inlet, and the sealing inlet is used for cables to enter the accommodating cavity.

In this solution, the equipment clamp is located in the sealed housing as a whole, the threaded end of the holding rod is pierced through the sealing sleeve, and the cable enters the accommodating cavity through the front sealing cover, so that the equipment clamp and the holding rod can be better Sealed and protected. The sealing component improves the sealing performance of the equipment clamp, and also makes the surface of the equipment clamp difficult to be oxidized and electrochemically corroded, thereby improving the service life of the equipment clamp.

Preferably, the sealing sleeve includes:

connecting part;

A sealing part, the sealing part is located inside the connecting part, the sealing part is made of elastic material, the sealing part is provided with the holding rod accommodation hole, and the holding rod accommodation hole is along the The height direction of the connecting part runs through the sealing part, and the connecting part is sealed and connected to the sealing sleeve accommodating hole;

A shroud part, the shroud part is connected to the bottom of the sealing part, the inside of the sheath part communicates with the pole accommodating hole, and the inside of the sheath part is used for accommodating the holding rod the vase end of the rod;

Wherein, an accommodating space is formed between the outer wall surface of the sealing part and the inner wall surface of the connecting part, and the accommodating space is filled with an insulating material.

In this solution, after the pole is inserted into the pole holding hole, the sealing part can be elastically deformed to hold the pole tightly. Due to the existence of the thread on the threaded end of the holding rod, it is likely that the seal between the sealing part and the holding rod cannot be reliably sealed, and the existence of insulating material in the accommodation space can avoid the influence of the thread on the sealing performance. Therefore, when the sealing sleeve is used for sealing the pole holding part, the sealing performance is better. In addition, the shape of the shield part is adapted to the shape of the porcelain bottle end of the holding rod, and the shield part can protect the porcelain bottle end, which is beneficial to improve the service life of the holding rod.

Preferably, the sealing portion has a top end and a bottom end along the height direction of the connecting portion, and the bottom end of the sealing portion is attached to the bottom of the connecting portion;

From the top end of the sealing part to the bottom end of the sealing part, the sealing part is in the shape of a bell mouth with a small top and a big bottom;

In the direction along the height of the connecting portion, the height of the connecting portion is not smaller than that of the sealing portion.

In this solution, the cross-sectional area of the bottom end of the sealing part is larger than the cross-sectional area of the top end of the sealing part. On the one hand, it can accommodate a large amount of insulating material, which is beneficial to realize reliable sealing of the threaded end of the holding rod; on the other hand On the one hand, if the cross-sectional area of the bottom end of the sealing portion is smaller than the cross-sectional area of the top end of the sealing portion, there may be a gap between the top end of the sealing portion and the pole, which will affect the sealing effect on the pole portion. .

Preferably, the cable includes a main line and two temperature measuring lines, the sealing port includes a first sealing port and two second sealing ports, and the first sealing port is used to allow the main line to enter the container. a housing chamber, the second sealing port is used to allow the temperature measuring line to enter the housing chamber;

The front sealing cover is also provided with:

A first sealing extension part, the first sealing extension part extends from an end of the front sealing cover close to the sealing housing toward the accommodating chamber, the first sealing extension part is located at the first sealing port in the direction of extension;

Two second sealing extensions, the second sealing extensions extend from the end of the front sealing cover close to the sealing housing toward the accommodating cavity, the second sealing extensions are located at the second sealing in the direction of mouth extension.

In this solution, the first sealing extension and the second sealing extension increase the contact area between the front sealing cover and the cable, which is conducive to improving the stability of the cable. In addition, because the first sealing extension and the second sealing The extension part provides a setting space for other structures, which is beneficial to realize the passage of cables of different specifications.

Preferably, the first sealing extension part adopts a hierarchical structure for allowing the main wires of different specifications to pass through.

In this solution, the hierarchical structure can improve the versatility of the equipment clamps, which is beneficial to save costs and facilitate management.

Preferably, the sealing assembly further includes an upper sealing cover, and the upper sealing cover includes a first sealing cover, a second sealing cover and a third sealing cover;

The sealed housing is provided with a first sealing port, a second sealing port and a third sealing port;

Wherein, the first sealing cover, the second sealing cover and the third sealing cover are sealed and connected to the first sealing port, the second sealing port and the third sealing port in one-to-one correspondence.

Preferably, the first sealing cover is connected to the second sealing cover through a first connecting band, and the first sealing cover is connected to the third sealing cover through a second connecting band.

In this solution, the first sealing cover, the second sealing cover and the third sealing cover are connected as a whole through the first connecting band and the second connecting band, which is more convenient for management.

Preferably, a connecting buckle is connected to the side wall of the first sealing cover, and the connecting buckle has a connecting groove, and a protrusion is correspondingly provided on the side wall of the front sealing cover, and the protrusion is clamped on the the connection slot described above.

In this solution, the first sealing cover is fastened to the front sealing cover through the connecting buckle and the protrusion, which is not only convenient for management, but also conducive to improving the sealing reliability of the equipment cable clamp.

The utility model also provides an insulating equipment clamp, which is characterized in that it comprises the above-mentioned equipment clamp and a sealing assembly.

The utility model also provides an insulating equipment clamp, which is characterized in that it includes the above-mentioned equipment clamp and a sealing assembly; wherein, the equipment clamp includes:

A cable clamp body, the cable clamp body is provided with a cable inlet, the cable inlet communicates with the sealed inlet, and the cable clamp body is also provided with a first accommodating hole, the first accommodating The hole communicates with the cable inlet;

A shearing bolt, the shearing bolt is passed through the first accommodation hole, and the end of the screw rod of the shearing bolt away from the head of the shearing bolt is used to abut against the cable;

Wherein, the outer wall surface of the screw rod of the shear bolt is provided with at least two shear grooves, at least two of the shear grooves are distributed along the axial direction of the shear bolt at intervals, and each of the shear grooves is along the axis of the shear bolt. the circumferential direction of the screw of the shear bolt extends;

The head of the shear bolt is provided with a mounting hole, and the mounting hole extends through one of the at least two shear slots that is remote from the head of the shear bolt;

Wherein, the position of the first sealing port corresponds to the position of the shear bolt.

In this solution, the clamp body and the cable are tightly connected by shear bolts, which is easy to operate and stable in performance. After the shear bolt abuts against the cable, the shear bolt is twisted off from the corresponding shear groove. There are at least two shearing grooves on the shearing bolt. For cables with larger specifications, the shearing bolts will be twisted off from one of the shearing grooves close to the cables; for cables with smaller specifications, the shearing bolts will be twisted off at a cut away from the cable. Therefore, the equipment cable can be adapted to cables of different specifications, and the versatility is good. In addition, since the mounting hole extends through the shearing groove, after the shearing bolt is twisted off, the shearing bolt can be easily removed from the clamp body through the mounting hole, which is also convenient for later maintenance. Wherein, in the process of installing the shearing bolt to the clamp body, the first sealing cover is separated from the sealing housing, and when the shearing bolt compresses the cable in place, the first sealing cover and the first sealing port of the sealing housing are separated. Sealed connection.

Preferably, the cable clip body is also provided with a second accommodation hole, and the device cable clip also includes:

A jacket, the jacket is passed through the second accommodating hole, and the jacket is provided with:

A pole accommodating hole, the pole accommodating hole is used to accommodate the pole, the pole accommodating hole is located at the end of the clamp body away from the cable entrance, the pole accommodating The placement hole extends along the height direction of the jacket;

A first stress relief groove, the first stress relief groove is located on the side wall of the jacket, and the first stress relief groove extends to the pole accommodating hole;

Wherein, one end of the clamp body away from the cable inlet has an opening, and the opening extends to the pole accommodating hole;

Adjustment holes are provided on the two side walls of the clamp body corresponding to the opening, the adjustment holes on the two side walls of the clamp body communicate with the opening, and a fastener is sequentially passed through One side wall of the clamp body, the opening and the other side wall of the clamp body;

Wherein, the second sealing port corresponds to the position of the jacket, and the third sealing port corresponds to the position of the adjustment hole.

In this solution, the clamp body can be tightened by the fastener, so that the jacket is elastically deformed, so that the jacket can be tightly hugged to the pole, and finally the connection between the cable and the pole of the transformer is realized. Among them, before the holding rod and the jacket are tightly hugged, the second sealing cover is separated from the sealing casing, and the third sealing cover is separated from the sealing casing. After the holding rod and the jacket are tightly hugged, the second sealing cover is separated from the sealing casing The second sealing port of the body is sealingly connected, and the third sealing cover is sealingly connected with the third sealing port of the sealing housing.

On the basis of conforming to common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain the preferred examples of the present utility model.

The positive progressive effect of the present utility model is:

The equipment clamp is located in the sealed shell as a whole, the threaded end of the holding rod is pierced through the sealing sleeve, and the cable enters the accommodating cavity through the front sealing cover, so that the equipment clamp and the holding rod can be better sealed and protected. The sealing component improves the sealing performance of the equipment clamp, and also makes the surface of the equipment clamp difficult to be oxidized and electrochemically corroded, thereby improving the service life of the equipment clamp.

Description of drawings

FIG. 1 is a schematic structural view of a sealing assembly of a preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a sealing sleeve in a sealing assembly according to a preferred embodiment of the present invention.

Fig. 3 is a structural schematic diagram of another position state of the sealing sleeve in the sealing assembly of a preferred embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a sealing housing in a sealing assembly according to a preferred embodiment of the present invention.

Fig. 5 is a schematic structural view of the upper sealing cover in the sealing assembly of a preferred embodiment of the present invention.

Fig. 6 is a schematic structural view of the front sealing cover in the sealing assembly of a preferred embodiment of the present invention.

Fig. 7 is a structural schematic diagram of another position state of the front sealing cover in the sealing assembly of a preferred embodiment of the present invention.

Fig. 8 is a schematic structural view of the equipment clamp in the insulating equipment clamp according to a preferred embodiment of the present invention.

Fig. 9 is a structural schematic diagram of another position state of the equipment wire clip according to a preferred embodiment of the present invention.

Fig. 10 is a schematic structural view of the main body of the wire clip in the equipment wire clip according to a preferred embodiment of the present invention.

Fig. 11 is a schematic structural view of the shear bolt in the equipment clamp according to a preferred embodiment of the present invention.

Fig. 12 is a structural schematic diagram of a jacket in a device wire clip according to a preferred embodiment of the present invention.

Explanation of reference signs:

10 jacket

101 Pole accommodation hole

102 The first stress relief groove

103 Second stress relief groove

104 Top positioning part

105 card slot

20 Bottom locator

30 clamp body

301 cable entry

302 The first receiving hole

303 Second storage hole

304 opening

305 adjustment hole

306 Temperature measuring line inlet

307 The third receiving hole

40 shear bolts

401 shear slot

402 mounting holes

50 fasteners

60 set screw

70 Sealing sleeve

701 connection part

7011 Protrusion

702 sealing part

7021 Pole holding hole

703 storage space

704 Shield

80 sealed case

801 First sealing port

802 Second sealing port

803 The third sealing port

804 front seal

90 Upper sealing cap

901 First sealing cap

902 Second sealing cap

903 third sealing cover

904 first connecting belt

905 Second connection belt

906 Connection Buckle

9061 connection slot

100 Front sealing cap

1001 raised

1002 First sealed entrance

1003 First seal extension

1004 Second Seal Inlet

1005 Second seal extension

Detailed ways

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

This embodiment discloses a sealing assembly, which is used to seal the equipment wire clip. The equipment wire clip is pierced with a holding rod, and the holding rod has a threaded end and a porcelain bottle end along the height direction. As understood with reference to FIGS. 1-7 , the seal assembly includes a seal housing 80 , a seal sleeve 70 and a front seal cover 100 . Wherein, the sealed housing 80 has an accommodating cavity, which is used to accommodate equipment wire clamps, the bottom of the sealed housing 80 has a sealing sleeve 70 accommodating hole, and one end of the sealed housing 80 has a front sealing port 804, the front The sealing port 804 and the accommodating hole of the sealing sleeve 70 are all in communication with the accommodating cavity. The sealing sleeve 70 is provided with a holding hole 7021 for the holding rod, and the holding hole 7021 is used for accommodating the threaded end of the holding rod, and the sealing sleeve 70 is sealingly connected to the holding hole of the sealing sleeve 70 . The front sealing cover 100 is sealingly connected to the front sealing opening 804 , and the front sealing cover 100 is provided with a sealing inlet, which is used for cables to enter the accommodating cavity.

In this embodiment, the equipment cable clamp is located in the sealed housing 80 as a whole, the threaded end of the holding rod is pierced through the sealing sleeve 70, and the cable enters the accommodating cavity through the front sealing cover 100, so that the equipment cable clamp and the holding The rod is better sealed and protected. The sealing component improves the sealing performance of the equipment clamp, and also makes the surface of the equipment clamp difficult to be oxidized and electrochemically corroded, thereby improving the service life of the equipment clamp.

As can be understood with reference to FIGS. 2 and 3 , the sealing sleeve 70 includes a connecting portion 701 , a sealing portion 702 and a shield portion 704 . The sealing part 702 is located inside the connecting part 701. The sealing part 702 is made of elastic material. The sealing part 702 is provided with a holding hole 7021 for the pole, and the holding hole 7021 penetrates the sealing part 702 along the height direction of the connecting part 701. , the connecting portion 701 is sealed and connected to the accommodating hole of the sealing sleeve 70 . The shield part 704 is connected to the bottom of the sealing part 702, the inside of the sheath part communicates with the pole holding hole 7021, and the inside of the sheath part is used to accommodate the porcelain bottle end of the pole. Wherein, an accommodating space 703 is formed between the outer wall surface of the sealing portion 702 and the inner wall surface of the connecting portion 701 , and the accommodating space 703 is filled with an insulating material.

In this embodiment, after the pole is inserted into the pole accommodating hole 7021 , the sealing portion 702 can be elastically deformed to hold the pole tightly. Due to the existence of the thread on the threaded end of the holding rod, it is likely that the seal between the sealing part 702 and the holding rod cannot be reliably sealed. The existence of the insulating material in the accommodating space 703 can avoid the influence of the thread on the sealing performance. Therefore, when the sealing sleeve 70 is used for sealing the pole holding part, the sealing performance is better. In addition, the shape of the shield part 704 is adapted to the shape of the porcelain bottle end of the holding rod, and the shield part 704 can protect the porcelain bottle end, which is beneficial to improve the service life of the holding rod.

Continue to refer to FIG. 2 and FIG. 3 to understand that the sealing portion 702 has a top end and a bottom end along the height direction of the connecting portion 701 , and the bottom end of the sealing portion 702 is attached to the bottom of the connecting portion 701 . From the top of the sealing part 702 to the bottom of the sealing part 702, the sealing part 702 is in the shape of a bell mouth with a small top and a big bottom;

Wherein, the cross-sectional area of the bottom end of the sealing part 702 is greater than the cross-sectional area of the top end of the sealing part 702, on the one hand, it can accommodate a large amount of insulating material, which is beneficial to realize the reliable sealing of the threaded end of the holding rod; on the other hand On the one hand, if the cross-sectional area of the bottom end of the sealing portion 702 is smaller than the cross-sectional area of the top end of the sealing portion 702, there may be a gap between the top end of the sealing portion 702 and the pole, which affects the protection of the pole portion. Sealing effect.

In addition, in this embodiment, the material of the sealing part 702 is rubber. However, in other alternative implementation manners, the sealing part 702 may be made of other elastic materials, such as silica gel.

Referring to FIG. 2 , a protruding portion 7011 is provided on the outer wall of the connecting portion 701 , and the protruding portion 7011 extends along the circumferential direction of the connecting portion 701 . Among them, the protruding part 7011 can realize the preliminary positioning between the connecting part 701 and the sealing shell 80, facilitates the installation between the connecting part 701 and the sealing shell 80, and is beneficial to improve the connection between the connecting part 701 and the sealing shell 80. sealed connection.

Usually, the cable includes a main wire and two temperature measuring wires. In this embodiment, it can be understood with reference to FIG. 6 and FIG. The port 801 is used to allow the main line to enter the accommodating cavity, and the second sealing port 802 is used to allow the temperature measurement line to enter the accommodating cavity. A first sealing extension 1003 and two second sealing extensions 1005 are also provided on the front sealing cover 100 . The first sealing extension 1003 extends from an end of the front sealing cover 100 close to the sealing housing 80 toward the accommodating cavity, and the first sealing extension 1003 is located in the extending direction of the first sealing opening 801 . The second sealing extension 1005 extends from an end of the front sealing cover 100 close to the sealing housing 80 toward the accommodating chamber, and the second sealing extension 1005 is located in the extending direction of the second sealing port 802 .

Wherein, the first sealing extension 1003 and the second sealing extension 1005 increase the contact area between the front sealing cover 100 and the cable, which is conducive to improving the stability of the cable. In addition, because the first sealing extension 1003 and the second sealing The sealing extension 1005 provides a setting space for other structures, which is conducive to the passage of cables of different specifications.

In addition, in this embodiment, the first sealing extension part 1003 adopts a hierarchical structure for allowing main wires of different specifications to pass through. The hierarchical structure can improve the versatility of the equipment clamps, which is beneficial to save costs and facilitate management.

With reference to FIG. 1 and FIGS. 4-6 , the sealing assembly further includes an upper sealing cover 90 , and the upper sealing cover 90 includes a first sealing cover 901 , a second sealing cover 902 and a third sealing cover 903 . The sealing housing 80 is provided with a first sealing port 801 , a second sealing port 802 and a third sealing port 803 . The first sealing cover 901 , the second sealing cover 902 and the third sealing cover 903 are connected to the first sealing port 801 , the second sealing port 802 and the third sealing port 803 in a one-to-one correspondence. The first sealing cover 901 is connected to the second sealing cover 902 through the first connecting band 904 , and the first sealing cover 901 is connected to the third sealing cover 903 through the second connecting band 905 . A side wall of the first sealing cover 901 is connected with a connecting buckle 906 , and the connecting buckle 906 has a connecting groove 9061 . The side wall of the front sealing cover 100 is correspondingly provided with a protrusion 1001 , and the protrusion 1001 is clamped in the connecting groove 9061 .

Wherein, the first sealing cover 901 , the second sealing cover 902 and the third sealing cover 903 are connected as a whole through the first connecting band 904 and the second connecting band 905 , which is more convenient for management.

In this solution, the first sealing cover 901 is fastened to the front sealing cover 100 through the connecting buckle 906 and the protrusion 1001, which is not only convenient for management, but also conducive to improving the sealing reliability of the equipment cable clamp.

This embodiment also discloses an insulating equipment clamp, which includes the equipment clamp and the above-mentioned sealing assembly, and the equipment clamp is used to realize the connection between the cable and the transformer pole. Wherein, as understood with reference to FIGS. 8-12 , the equipment clamp includes a clamp body 30 and a shear bolt 40 . Wherein, the cable clamp body 30 is provided with a cable inlet 301 , and the cable inlet 301 is used for extending cables into the cable clamp body 30 . The clamp body 30 is also provided with a first accommodating hole 302 (mainly shown in FIG. 10 ), and the first accommodating hole 302 communicates with the cable inlet 301 . The shear bolt 40 is passed through the first receiving hole 302 , and the end of the screw rod of the shear bolt 40 away from the head of the shear bolt 40 is used to abut against the cable. The outer wall surface of the screw of the shear bolt 40 is provided with at least two shear grooves 401, at least two shear grooves 401 are distributed along the axial direction of the shear bolt 40 at intervals, and each shear groove 401 is along the direction of the shear bolt 40. The circumferential direction of the screw extends. The head of the shear bolt 40 is provided with an installation hole 402 , and the installation hole 402 extends through one of the at least two shear slots 401 that is away from the head of the shear bolt 40 .

In this embodiment, the clamp body 30 and the cable are tightly connected by the shear bolt 40 , which is easy to operate and stable in performance. After the shear bolt 40 abuts against the cable, the shear bolt 40 is twisted off from the corresponding shear groove 401 . The shearing bolt 40 is provided with at least two shearing slots 401, and for a cable of a larger specification, the shearing bolt 40 will be twisted off from one of the shearing slots 401 close to the cable; for a cable of a smaller specification , the shear bolt 40 will be twisted off from a shear slot 401 away from the cable. Therefore, the equipment cable can be adapted to cables of different specifications, and the versatility is good. In addition, since the installation hole 402 extends through the shear groove 401, after the shear bolt 40 is twisted off, the shear bolt 40 can be easily removed from the clamp body 30 through the installation hole 402, which is also convenient for later maintenance. Wherein, the wall surface of the installation hole 402 is provided with an internal thread.

It should be noted that threads are processed on the connection surface between the cable clamp body 30 and the cable. When the cable is connected to the cable clamp body 30, the thread teeth can pierce the oxide film on the surface of the cable, increasing the contact area. Helps improve electrical conductivity. In addition, in this embodiment, the material of the clamp body 30 is aluminum alloy, and the wall surface of the cable inlet 301 is coated with electric composite grease. Aluminum alloy has no magnetic loss, has better corrosion resistance, and is lighter in weight, which can lower the cost and is also conducive to energy saving and environmental protection. The equipment wire clips in the prior art are mostly made by the copper plate stamping process or the copper casting process, and the production cost is relatively high. That is to say, compared with the prior art, this solution can reduce the cost. In addition, the electrical composite grease is coated on the connecting surface of the cable clamp body 30 and the cable, because the electrical composite grease can resist oxidation and has a strong electrical conductivity, thus, it is beneficial to improve the service life of the insulating clamp.

Continue to refer to FIG. 8 to understand that in this embodiment, the mounting hole 402 is a hexagonal mounting hole 402 . In other alternative implementation manners, the installation hole 402 may also be set as a round hole or a square hole.

As can be understood with reference to FIGS. 8-10 , the cable clip body 30 is further provided with a second accommodating hole 303 , and the equipment cable clip also includes a jacket. The jacket is passed through the second accommodating hole 303 , and the jacket is provided with a pole accommodating hole 7021 and a first stress relief groove 102 . The pole accommodating hole 7021 is used to accommodate the pole. The pole accommodating hole 7021 is located at the end of the clamp body 30 away from the cable inlet 301 . The pole accommodating hole 7021 extends along the height direction of the jacket. The first stress relief groove 102 is located on the side wall of the jacket, and the first stress relief groove 102 extends to the pole accommodating hole 7021 . Wherein, an end of the clamp body 30 away from the cable inlet 301 has an opening 304 , and the opening 304 extends to the holding hole 7021 of the pole. Adjustment holes 305 are provided on the two side walls corresponding to the opening 304 in the wire clamp body 30, the adjustment holes 305 on the two side walls of the wire clamp body 30 communicate with the opening 304, and the fasteners 50 are passed through the wires in turn. One side wall of the clip body 30 , the opening 304 and the other side wall of the clip body 30 .

In this embodiment, the clamp body 30 can be tightened by the fastener 50, so that the jacket is elastically deformed, and then the jacket can be tightly hugged to the pole, and finally the connection between the cable and the pole of the transformer is realized.

8 and 12 to understand, the jacket is also provided with a second stress relief groove 103 . The second stress relief groove 103 is located on the wall of the pole holding hole 7021 , and the second stress relief groove 103 extends along the height direction of the jacket. The second stress relief groove 103 makes the jacket more likely to be elastically deformed, and can hold the pole more reliably, so that the gap between the jacket and the pole is not easy to loosen, which is beneficial to improve the distance between the cable and the equipment clamp and the pole. connection reliability. It should be noted that the wall of the pole holding hole 7021 is provided with an internal thread, and the pole is provided with an external thread, and the jacket contacts the pole through the cooperation between the internal thread and the external thread, and the contact area is relatively large.

In this embodiment, three second stress relief grooves 103 are provided on the wall surface of the pole holding hole 7021 , and the three second stress relief grooves 103 are arranged at intervals along the circumferential direction of the jacket. The three second stress relief grooves 103 can further facilitate the elastic deformation of the jacket, and further help improve the reliability of the connection between the jacket and the pole. In other alternative embodiments, on the basis of ensuring the strength and elastic deformation of the jacket itself, one, two, four or more second stress relief grooves 103 may also be provided.

Referring to Fig. 8, Fig. 9 and Fig. 12, it can be understood that the jacket has a top end and a bottom end along the height direction, and the top end of the jacket is provided with a top positioning part 104, and the top positioning part 104 is along the circumferential direction of the jacket from the outer wall surface of the jacket. The direction extends outward. The top of the jacket can reliably extend out of the clamp body 30 through the top positioning portion 104, which is conducive to increasing the contact area between the jacket and the pole, and further improves the connection between the jacket, the pole and the clamp body 3030. reliability. Wherein, the top positioning part 104 is a hexagonal nut, and the hexagonal nut and the jacket are an integral structure.

In this embodiment, the connection structure between the top positioning part 104 and the jacket is omitted, the structure is simple, the use is convenient, and it is also beneficial to improve the strength of the jacket itself.

Continue to refer to FIG. 9 and FIG. 12 to understand that the equipment clamp further includes a bottom positioning member 20, which is sheathed on the bottom end of the jacket. The clamp body 30 has a top end and a bottom end along the height direction of the jacket. The top and bottom ends of the jacket extend out of the top and bottom ends of the clamp body 30 one by one. The top positioning part 104 is pressed on the top and bottom of the jacket. The end retainer 20 is adapted to fit over the bottom end of the jacket. The bottom end of the jacket protrudes from the clamp body 30 , and the bottom positioning member 20 can prevent the jacket from falling from the external elements, which is beneficial to further improve the reliability of the connection between the jacket, the pole and the clamp body 30 . In addition, in this embodiment, the bottom positioning member 20 is a snap spring, and the outer wall surface of the jacket is provided with a catch groove 105 along the circumferential direction, and the snap ring is clipped in the catch groove 105 .

Continue to refer to FIG. 8 and FIG. 10 to understand that in this embodiment, two temperature measuring wire inlets 306 and a third accommodating hole 307 are further provided on the clamp body 30 . Wherein, the centerline of the third accommodation hole 307 is parallel to the centerline of the first accommodation hole 302, the centerline of the temperature measuring line inlet 306 is parallel to the centerline of the cable inlet 301, and the third accommodation hole 307 is connected with The set screw 60 is provided with a hexagonal mounting hole 402 inside the set screw 60 . The cable usually includes a main wire and two temperature measuring wires. When the cable is connected to the inside of the clamp body 30, the main wire enters the inside of the clamp body 30 through the cable inlet 301, and the shear bolt 40 abuts against the main wire; The two temperature measuring wires respectively enter the inside of the clamp body 30 through the two temperature measuring wire inlets 306 , and the set screw 60 abuts against the temperature measuring wires.

In addition, it should be noted that referring to FIG. 10 , in this embodiment, the included angle between the centerline of the cable inlet 301 and the centerline of the second accommodating hole 303 is 90°.

For the device cable clip, the shear bolt 40 enables the device cable to adapt to cables of different specifications, and has good versatility. In addition, since the installation hole 402 extends through the shear groove 401, after the shear bolt 40 is twisted off, the shear bolt 40 can be easily removed from the clamp body 30 through the installation hole 402, which is also convenient for later maintenance.

In the insulating device clamp, the sealing inlet communicates with the cable inlet 301 . In addition, the first sealing port 801 corresponds to the position of the shear bolt 40 , the second sealing port 802 corresponds to the position of the jacket, and the third sealing port 803 corresponds to the position of the adjustment hole 305 . Wherein, during the process of installing the shear bolt 40 to the clamp body 30, the first sealing cover 901 is separated from the sealing housing 80, and when the shearing bolt 40 compresses the cable in place, the first sealing cover 901 is separated from the sealing housing 80. The first sealing port 801 of the body 80 is sealed and connected. Before the holding rod and the jacket are tightly hugged, the second sealing cover 902 is separated from the sealing housing 80, and the third sealing cover 903 is separated from the sealing housing 80. After the holding rod and the jacket are tightly hugged, the second sealing cover 902 It is sealingly connected with the second sealing port 802 of the sealing case 80 , and the third sealing cover 903 is sealingly connecting with the third sealing port 803 of the sealing case 80 .

In the insulated equipment clamp, the equipment clamp is entirely located in the sealing housing 80 of the sealing assembly, the threaded end of the holding rod is passed through the sealing sleeve 70, and the cable enters the accommodating cavity through the front sealing cover 100, so that the Equipment clamps and poles are better sealed and protected. The sealing component improves the sealing performance of the equipment clamp, and also makes the surface of the equipment clamp difficult to be oxidized and electrochemically corroded, thereby improving the service life of the equipment clamp.

Although the specific implementation of the utility model has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (11)

1. A sealing assembly, which is used to seal the equipment clamp, and the equipment clamp is pierced with a holding rod, and the holding rod has a threaded end and a porcelain bottle end along the height direction. It is characterized in that the sealing assembly includes: The sealed housing has an accommodating cavity inside, and the accommodating cavity is used to accommodate the equipment clamp. The bottom of the sealed housing has a sealing sleeve accommodating hole. One end of the sealed housing It has a front sealing port, and the front sealing port and the sealing sleeve accommodating hole are all in communication with the accommodating cavity; A sealing sleeve, the sealing sleeve is provided with a holding hole for holding the rod, and the holding hole is used to accommodate the threaded end of the holding rod, and the sealing sleeve is sealed and connected to the sealing sleeve holding hole; The front sealing cover is sealed and connected to the front sealing port, and the front sealing cover is provided with a sealing inlet, and the sealing inlet is used for cables to enter the accommodating cavity. 2. The seal assembly of claim 1, wherein the seal sleeve comprises: connecting part; A sealing part, the sealing part is located inside the connecting part, the sealing part is made of elastic material, the sealing part is provided with the holding rod accommodation hole, and the holding rod accommodation hole is along the The height direction of the connecting part runs through the sealing part, and the connecting part is sealed and connected to the sealing sleeve accommodating hole; A shield part, the shield part is connected to the bottom of the sealing part, the inside of the shield part communicates with the pole accommodating hole, and the inside of the sheath part is used to accommodate the arms the vase end of the rod; Wherein, an accommodating space is formed between the outer wall surface of the sealing part and the inner wall surface of the connecting part, and the accommodating space is filled with an insulating material. 3. The sealing assembly according to claim 2, wherein the sealing part has a top end and a bottom end along the height direction of the connecting part, and the bottom end of the sealing part is attached to the bottom of the connecting part ; From the top end of the sealing part to the bottom end of the sealing part, the sealing part is in the shape of a bell mouth with a small top and a big bottom; In the direction along the height of the connecting portion, the height of the connecting portion is not smaller than that of the sealing portion. 4. The sealing assembly according to claim 1, wherein the cable includes a main wire and two temperature measuring wires, the sealing port includes a first sealing port and two second sealing ports, the first The sealing port is used to allow the main line to enter the accommodating cavity, and the second sealing port is used to allow the temperature measuring line to enter the accommodating cavity; The front sealing cover is also provided with: A first sealing extension part, the first sealing extension part extends from an end of the front sealing cover close to the sealing housing toward the accommodating chamber, the first sealing extension part is located at the first sealing port in the direction of extension; Two second sealing extensions, the second sealing extensions extend from the end of the front sealing cover close to the sealing housing toward the accommodating cavity, the second sealing extensions are located at the second sealing in the direction of mouth extension. 5. The sealing assembly according to claim 4, wherein the first sealing extension part adopts a hierarchical structure for passing the main wires of different specifications. 6. The sealing assembly according to any one of claims 1-5, wherein the sealing assembly further comprises an upper sealing cover, and the upper sealing cover comprises a first sealing cover, a second sealing cover and a first sealing cover. Three sealing covers; The sealed housing is provided with a first sealing port, a second sealing port and a third sealing port; Wherein, the first sealing cover, the second sealing cover and the third sealing cover are sealed and connected to the first sealing port, the second sealing port and the third sealing port in one-to-one correspondence. 7. The sealing assembly according to claim 6, wherein the first sealing cover is connected to the second sealing cover through a first connecting band, and the first sealing cover is connected to the second sealing cover through a second connecting band. Describe the third sealing cover. 8. The sealing assembly according to claim 6, wherein a connecting buckle is connected to a side wall of the first sealing cover, and the connecting buckle has a connecting groove, and the side wall of the front sealing cover is correspondingly provided with There is a protrusion, and the protrusion is clamped in the connecting groove. 9. An insulating equipment clamp, characterized in that it comprises the equipment clamp according to any one of claims 1-8 and a sealing assembly. 10. An insulating equipment clamp, characterized in that it comprises the equipment clamp and sealing assembly according to any one of claims 6-8; wherein the equipment clamp comprises: A cable clamp body, the cable clamp body is provided with a cable inlet, the cable inlet communicates with the sealed inlet, and the cable clamp body is also provided with a first accommodating hole, the first accommodating The hole communicates with the cable inlet; A shearing bolt, the shearing bolt is passed through the first accommodation hole, and the end of the screw rod of the shearing bolt away from the head of the shearing bolt is used to abut against the cable; Wherein, the outer wall surface of the screw rod of the shear bolt is provided with at least two shear grooves, at least two of the shear grooves are distributed along the axial direction of the shear bolt at intervals, and each of the shear grooves is along the axis of the shear bolt. the circumferential direction of the screw of the shear bolt extends; The head of the shear bolt is provided with a mounting hole, and the mounting hole extends through one of the at least two shear slots that is remote from the head of the shear bolt; Wherein, the position of the first sealing port corresponds to the position of the shear bolt. 11. The insulating equipment clamp according to claim 10, wherein the clamp body is further provided with a second accommodating hole, and the equipment clamp further comprises: A jacket, the jacket is passed through the second accommodating hole, and the jacket is provided with: A pole accommodating hole, the pole accommodating hole is used to accommodate the pole, the pole accommodating hole is located at the end of the clamp body away from the cable entrance, the pole accommodating The placement hole extends along the height direction of the jacket; A first stress relief groove, the first stress relief groove is located on the side wall of the jacket, and the first stress relief groove extends to the pole accommodating hole; Wherein, one end of the clamp body away from the cable inlet has an opening, and the opening extends to the pole accommodating hole; Adjustment holes are provided on the two side walls of the clamp body corresponding to the opening, the adjustment holes on the two side walls of the clamp body communicate with the opening, and a fastener is sequentially passed through One side wall of the clamp body, the opening and the other side wall of the clamp body; Wherein, the second sealing port corresponds to the position of the jacket, and the third sealing port corresponds to the position of the adjustment hole.