CN210379768U

CN210379768U - Lightning arrester

Info

Publication number: CN210379768U
Application number: CN201920765774.1U
Authority: CN
Inventors: 林剑锋
Original assignee: Zhejiang Fuerte Electrical Apparatus Co ltd
Current assignee: Zhejiang Fuerte Electrical Apparatus Co ltd
Priority date: 2019-05-25
Filing date: 2019-05-25
Publication date: 2020-04-21
Anticipated expiration: 2029-05-25

Abstract

The utility model relates to the technical field of power equipment, and discloses a lightning arrester, which adopts the technical scheme that the lightning arrester comprises a body, an installation block fixedly connected with the body and a fixed block positioned on the lower side of the installation block, wherein the installation block is provided with a plurality of installation holes, and one side of each installation hole is provided with a fastening hole; one side sliding connection that the fixed block is close to the installation piece has two locating pieces, wear to be equipped with mounting bolt in the mounting hole, be equipped with on the locating piece with mounting bolt threaded connection's installation screw, be equipped with the waist shape hole that extends along the horizontal direction on the fixed block, one side of two locating pieces all is connected with the setting element of wearing to locate waist shape hole, the maximum diameter of setting element is less than the internal diameter of fastening hole. The utility model discloses need not to punch to the base on the iron tower when the installation, have easy to assemble's effect.

Description

Lightning arrester

Technical Field

The utility model relates to a power equipment's technical field, more specifically says that it relates to a lightning arrester.

Background

The lightning arrester is an electrical appliance which is used for protecting electrical equipment from being damaged by high transient overvoltage, limiting follow current time and normally limiting follow current assignment, is usually connected between a power grid lead and a ground wire, is sometimes connected beside an electrical appliance winding or between leads, and is an important device frequently adopted when a communication cable is prevented from being damaged by thunder and lightning.

Traditional arrester generally includes body and installation piece, is provided with the mounting hole on the installation piece, is applied to and is equipped with the base that is used for installing the arrester on transmission line's the iron tower, is provided with the through-hole that corresponds with the mounting hole on the base. When the lightning arrester is installed, the bolt penetrates through the installation hole and the through hole corresponding to the installation hole on the base simultaneously and then is in threaded connection with the nut, and therefore installation and fixation of the body are achieved.

However, since the base is usually not provided with a through hole corresponding to the mounting hole, when the lightning arrester is mounted, the base for mounting the lightning arrester on the iron tower needs to be surveyed, positioned and measured in size, and then the base is perforated by the perforating machine during construction. And the base sets up at the eminence usually, punches still to need carry the puncher to climb to the eminence to the base, and whole installation is loaded down with trivial details and the operation is inconvenient, remains to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art existence, the utility model provides a lightning arrester need not to punch to the base on the iron tower when the installation, has easy to assemble's effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: a lightning arrester comprises a body, a mounting block fixedly connected with the body and a fixing block positioned on the lower side of the mounting block, wherein a plurality of mounting holes are formed in the mounting block, and a fastening hole is formed in one side of each mounting hole; one side sliding connection that the fixed block is close to the installation piece has two locating pieces, wear to be equipped with mounting bolt in the mounting hole, be equipped with on the locating piece with mounting bolt threaded connection's installation screw, be equipped with the waist shape hole that extends along the horizontal direction on the fixed block, one side of two locating pieces all is connected with the setting element of wearing to locate waist shape hole, the maximum diameter of setting element is less than the internal diameter of fastening hole.

Through adopting above-mentioned technical scheme, when installing the arrester, earlier with the up end butt of installation piece and base, again with the lower terminal surface butt of fixed block and base. Then with setting element along waist shape hole horizontal migration and make it stretch into in one of them fastening hole, the locating piece removes thereupon and aligns with one of them mounting hole when the setting element stretches into the fastening hole, people can pass behind the mounting hole directly over the locating piece with mounting bolt threaded connection for the installation of installation piece and fixed block clamp base in order to realize the body, people need not to utilize the puncher to punch the base when the installation arrester, convenient operation. When the two positioning pieces respectively extend into the two fastening holes, the fixing block and the mounting block can be limited to rotate relatively, and alignment of the mounting holes and the mounting screw holes is facilitated. In addition, people can also drive the positioning block to move horizontally through the positioning piece to enable the positioning block to be matched with different mounting holes, so that the connecting positions of the mounting block and the fixing block are adjusted according to different mounting environments, and the applicability is high.

The utility model discloses further set up to: the setting element includes fixed dog, movable rod and the anchorage bar that links to each other, anchorage bar and dog are located the both ends and the diameter of movable rod respectively and are greater than the movable rod, be equipped with the locating hole that the internal diameter is greater than the diameter of movable rod on the locating piece, the movable rod passes locating hole and waist shape hole and outside cover simultaneously and is equipped with the butt spring, the one end of butt spring is connected on the locating piece, the other end is connected on the anchorage bar.

Through adopting above-mentioned technical scheme, when adjusting the position of locating piece, support the fixed block with the hand and make it can not separate with the lower terminal surface of base. During the adjustment, earlier make it drive the anchorage bar through pulling the dog and remove to the one side of keeping away from the installation piece, rethread horizontal migration moves the dog and makes the anchorage bar remove relative installation piece. When the fastening rod abuts against the lower end face of the mounting block, the abutting spring is pressed to deform and generate elastic force, so that the fastening rod can automatically stretch into the fastening hole after being aligned with the fastening hole, and the mounting hole and the mounting screw hole are quickly positioned. The diameter of anchorage bar and dog is greater than the movable rod and can restrict the movable rod and separate with the fixed block, avoids the movable rod to lose.

The utility model discloses further set up to: the end face, close to the mounting block, of the fixed block is provided with a dovetail groove extending along the horizontal direction, and a dovetail block which is arranged in the dovetail groove in a sliding mode is integrally formed on the positioning block.

By adopting the technical scheme, the dovetail block and the dovetail groove are matched, so that the moving direction of the positioning block is limited, the positioning block is not easy to rotate by taking the movable rod as a circle center, and the alignment of the mounting hole and the mounting screw hole is not influenced; the positioning block can be limited from being separated from the fixing block, and the stability of the lightning arrester during installation is improved.

The utility model discloses further set up to: the mounting block is close to the terminal surface of fixed block and is equipped with the sliding tray that extends along the horizontal direction, the one end of anchorage bar is slided and is established in the sliding tray.

Through adopting above-mentioned technical scheme, with the tip of anchorage bar along sliding tray horizontal migration during the position of adjusting the locating piece, the sliding tray can restrict the moving direction of anchorage bar, avoids the setting element to take place to deflect and influences anchorage bar and fastening hole cooperation.

The utility model discloses further set up to: the fastening rod comprises a smooth part and a threaded part, wherein the threaded part is positioned at one end, far away from the stop block, of the smooth part, and is connected with a fastening nut in a threaded manner.

Through adopting above-mentioned technical scheme, behind the fastening hole was worn out to the fastening rod, with the screw thread portion threaded connection of fastening nut and fastening rod, fastening nut can restrict fastening rod and fastening hole separation on the one hand, on the other hand has increased the joint strength of installation piece and fixed block to the stability of arrester has further been improved.

The utility model discloses further set up to: and the smooth part of the fastening rod is connected with a moving block.

Through adopting above-mentioned technical scheme, except that the mode through manual push-and-pull dog removes the anchorage bar, people still can drive the anchorage bar through the movable block and reciprocate, has increased the action point when staff removes the anchorage bar, and the removal mode is various.

The utility model discloses further set up to: the end face, far away from the stop block, of the fastening rod is integrally formed with a guide block, and the diameter of the guide block is gradually reduced towards one side, far away from the stop block.

Through adopting above-mentioned technical scheme, the guide block plays the effect of direction when the fastening rod stretches into the fastening hole, makes things convenient for fastening rod and fastening hole cooperation.

The utility model discloses further set up to: and a rubber ring is arranged on the inner wall of the fastening hole.

Through adopting above-mentioned technical scheme, the rubber circle pressurized deformation when the fastening rod stretches into the fastening hole has increased the frictional force of the lateral wall of fastening rod and fastening hole for the fastening rod is more difficult with the separation of fastening hole.

To sum up, the utility model discloses following beneficial effect has:

1. the lightning arrester body is clamped and fixed by the mounting block and the fixing block which are connected by the mounting bolt, people do not need to additionally punch the base by utilizing a punching machine, and the lightning arrester is convenient to mount; the fastening rod is matched with the fastening hole, so that the mounting hole and the mounting screw hole can be aligned conveniently, and the mounting bolt can be conveniently screwed;

2. when the fastening rod penetrates out of the fastening hole, the fastening nut and the threaded part of the fastening rod are in threaded connection, the fastening nut can limit the fastening rod to be separated from the fastening hole, and the tightness of connection of the mounting block and the fixing block is improved.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a partially exploded view highlighting the mounting screw hole of the present embodiment;

FIG. 3 is a schematic view showing a part of the positioning hole in the present embodiment exploded.

Reference numerals: 1. a body; 2. mounting blocks; 3. a fixed block; 4. mounting holes; 5. a dovetail groove; 6. a dovetail block; 7. positioning blocks; 8. mounting a screw hole; 9. a positioning member; 10. a stopper; 11. a movable rod; 12. a fastening rod; 13. a waist-shaped hole; 14. positioning holes; 15. installing a bolt; 16. an abutment spring; 17. a fastening hole; 18. a rubber ring; 19. a sliding groove; 20. a threaded portion; 21. a smooth portion; 22. fastening a nut; 23. a guide block; 24. moving the mass.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a lightning arrester, as shown in fig. 1 and 2, comprising a body 1, a mounting block 2 and a fixing block 3, wherein the mounting block 2 is fixed at the lower end of the body 1, and the fixing block 3 is located right below the mounting block 2. The up end of installation piece 2 is equipped with three mounting hole 4, and the interval of two adjacent mounting hole 4 equals. The upper end face of fixed block 3 is equipped with a dovetail 5 that extends along the horizontal direction, and dovetail 5 internal slip is equipped with two dovetail blocks 6, and the integrative formation of upside of dovetail block 6 has locating piece 7, and the up end of locating piece 7 is equipped with the installation screw 8 that extends to dovetail block 6, wears to be equipped with mounting bolt 15 in two mounting holes 4 wherein, mounting bolt 15 and the 8 threaded connection of installation screw. When installing body 1, people's accessible hand moves two locating pieces 7 and makes it align with two mounting holes 4 respectively, passes mounting bolt 15 again behind mounting hole 4 with 8 threaded connection of installation screw to make installation piece 2 and fixed block 3 press from both sides the base that is used for installing the arrester on the tight iron tower in order to realize the fixed of body 1, need not to punch the base during the installation, simple to operate.

As shown in fig. 2 and 3, the positioning members 9 are disposed on the right sides of the two positioning blocks 7, each positioning member 9 includes a stopper 10, a movable rod 11 and a fastening rod 12, which are fixedly connected, the diameters of the stopper 10 and the fastening rod 12 are larger than those of the movable rod 11, the stopper 10 is located at the lower end of the movable rod 11, and the fastening rod 12 is located at the upper end of the movable rod 11. The lower end face of the fixed block 3 is provided with a waist-shaped hole 13 extending along the horizontal direction, the upper end face of the positioning block 7 is provided with a positioning hole 14, the positioning hole 14 is close to the right end of the positioning block 7, and the movable rod 11 simultaneously penetrates through the waist-shaped hole 13 and the positioning hole 14 close to the waist-shaped hole.

As shown in fig. 2 and 3, an abutment spring 16 is fitted around the outside of the movable rod 11, and one end of the abutment spring 16 is fixed to the fastening rod 12 and the other end is fixed to the positioning block 7. The right side of each mounting hole 4 is provided with a fastening hole 17, the inner diameter of the fastening hole 17 is slightly larger than the diameter of the fastening rod 12, and a rubber ring 18 is fixed on the inner wall of the fastening hole 17.

As shown in fig. 2 and 3, when the position of the positioning block 7 is adjusted, the fixed block 3 is pressed by a hand so as not to be separated from the base, the fastening rod 12 is driven to move downwards by the pull-down stopper 10, the pressing spring 16 is pressed to deform and generate elasticity, and then the stopper 10 is horizontally moved so that the movable rod 11 drives the positioning block 7 to move. When fastening rod 12 aligns with fastening hole 17, fastening rod 12 can stretch into fastening hole 17 automatically under the effect of butt spring 16 to play the effect of preliminary location fixed block 3, avoid fixed block 3 and installation piece 2 to take place to deflect, be favorable to mounting hole 4 and installation screw 8 to align.

As shown in fig. 2 and 3, the lower end surface of the mounting block 2 is provided with a slide groove 19 communicating with the fastening hole 17, and the slide groove 19 extends in the horizontal direction. When the fastening rod 12 is moved, the end of the fastening rod 12 is inserted into the sliding groove 19, and the sliding groove 19 limits the deflection of the fastening rod 12, thereby facilitating the insertion of the fastening rod 12 into the fastening hole 17.

As shown in fig. 2 and 3, the fastening rod 12 includes an upper threaded portion 20 and a lower smooth portion 21, and a fastening nut 22 is screwed to the threaded portion 20. After the fastening rod 12 extends into the fastening hole 17, the fastening nut 22 is in threaded connection with the threaded portion 20, the fastening nut 22 can limit separation of the fastening rod 12 from the fastening hole 17, and stability of connection of the mounting block 2 and the fixing block 3 is further improved. A guide block 23 is integrally formed on an upper end surface of the screw portion 20, a diameter of the guide block 23 is gradually reduced from bottom to top, and the guide block 23 plays a role of guiding when the fastening rod 12 is inserted into the fastening hole 17.

As shown in fig. 2 and 3, a moving block 24 is fixed to the side wall of the smooth portion 21, when the body 1 is removed, the mounting bolt 15 is separated from the mounting screw hole 8, the fastening bolt is separated from the screw portion 20, and at this time, a person can pull the moving block 24 by hand to enable the movable rod 11 to drive the fastening rod 12 to move down, so that the fastening rod 12 is separated from the fastening hole 17. The arrangement of the moving block 24 increases the action point of a human hand when moving the positioning part 9, and facilitates the human hand to move the positioning part 9 when the fastening rod 12 is clamped by the rubber ring 18 to cause the stopper 10 to be inconvenient to move.

The working principle of the embodiment is as follows: when the arrester is installed, earlier with the up end butt of installation piece 2 with the base, again with the lower terminal surface butt of fixed block 3 with the base, pass dog 10 through the level and make it drive locating piece 7 and remove, imbed two fastening rod 12 respectively in two of them fastening holes 17 again, be connected fastening nut 22 with screw portion 20 after that, pass mounting bolt 15 at last behind mounting hole 4 with 8 threaded connection of installation screw, thereby make

installation piece

2 and 3 tight bases of clamp of fixed block with fixed body 1, people need not to punch in addition the base at the in-process of installation, and is convenient for installation.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. An arrester, characterized in that: the mounting block comprises a body (1), a mounting block (2) fixedly connected with the body (1) and a fixing block (3) positioned on the lower side of the mounting block (2), wherein a plurality of mounting holes (4) are formed in the mounting block (2), and a fastening hole (17) is formed in one side of each mounting hole (4); one side sliding connection that fixed block (3) are close to installation piece (2) has two locating pieces (7), wear to be equipped with mounting bolt (15) in mounting hole (4), be equipped with on locating piece (7) with mounting bolt (15) threaded connection's installation screw (8), be equipped with waist shape hole (13) that extend along the horizontal direction on fixed block (3), one side of two locating pieces (7) all is connected with locating element (9) of wearing to locate waist shape hole (13), the maximum diameter of locating element (9) is less than the internal diameter of fastening hole (17).

2. A surge arrester according to claim 1, characterized in that: setting element (9) are including fixed dog (10), movable rod (11) and anchorage bar (12) that link to each other, anchorage bar (12) and dog (10) are located the both ends and the diameter of movable rod (11) respectively and are greater than movable rod (11), be equipped with locating hole (14) that the internal diameter is greater than the diameter of movable rod (11) on locating piece (7), movable rod (11) pass locating hole (14) and waist shape hole (13) and outside cover simultaneously and are equipped with butt spring (16), the one end of butt spring (16) is connected on locating piece (7), the other end is connected on anchorage bar (12).

3. A surge arrester according to claim 1, characterized in that: the end face, close to the mounting block (2), of the fixing block (3) is provided with a dovetail groove (5) extending in the horizontal direction, and a dovetail block (6) which is arranged in the dovetail groove (5) in a sliding mode is integrally formed on the positioning block (7).

4. A surge arrester according to claim 2, characterized in that: the end face of the mounting block (2) close to the fixing block (3) is provided with a sliding groove (19) extending along the horizontal direction, and one end of the fastening rod (12) is slidably arranged in the sliding groove (19).

5. A surge arrester according to claim 2, characterized in that: the fastening rod (12) comprises a smooth part (21) and a threaded part (20), wherein the threaded part (20) is located at one end, far away from the stop block (10), of the smooth part (21) and is in threaded connection with a fastening nut (22).

6. An arrester according to claim 5, characterized in that: the smooth part (21) of the fastening rod (12) is connected with a moving block (24).

7. A surge arrester according to claim 2, characterized in that: the end face, far away from the stop block (10), of the fastening rod (12) is integrally formed with a guide block (23), and the diameter of the guide block (23) is gradually reduced towards one side, far away from the stop block (10).

8. A surge arrester according to claim 1, characterized in that: and a rubber ring (18) is arranged on the inner wall of the fastening hole (17).