CN217692043U

CN217692043U - Compact type confluence clamp

Info

Publication number: CN217692043U
Application number: CN202221079091.9U
Authority: CN
Inventors: 应伟亮; 龚海晏
Original assignee: Zhixing Electronics Suzhou Co ltd
Current assignee: Zhixing Electronics Suzhou Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-10-28
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a compact confluence clamp, which comprises a clamp body (1) and a socket component (2), wherein the clamp body (1) comprises a fixed clamp head (12), a movable clamp head (13), adjusting pieces (14, 18) and a fixing plate (15); a clamping space is formed between the fixed clamp head (12) and the movable clamp head (13); the socket assembly (2) comprises a jack sleeve (22), and the jack sleeve (22) is fixedly connected with the fixed clamp head (12); a threaded hole (16) is formed in the part, corresponding to the clamping space, of the fixing plate (15), and the adjusting piece (14) penetrates through the threaded hole (16) to be fixedly connected with the movable clamp head (13); the movable clamping head (13) moves back and forth through the axial movement of the adjusting piece (14). The utility model discloses a clamp converges, simple structure is compact easily to be operated, has increased puncture validity and centre gripping reliability.

Description

Compact type confluence clamp

Technical Field

The utility model belongs to the technical field of join in marriage net uninterrupted power tool, especially, relate to a compact clamp that converges.

Background

At present, when the distribution network is in the maintenance process of uninterrupted operation, in order to realize the connection of the low-voltage output end of the mobile box transformer car, the emergency power generation car and the generator set with the user side, the copper noses on the low-voltage cables are connected with the busbars in the low-voltage cabinet of the user side in a bolt fixing mode, the operation time of the connection mode is long, and the risk of electric shock of a human body exists. Along with the rapid development of city construction, the requirement on power supply reliability is higher and higher, the use frequency of various operation vehicles such as a box transformer car and a generator car is greatly increased, and a confluence clamp is often used when the low-voltage side of the box transformer car and the generator car is connected with a busbar of a user side.

CN212908472U discloses an adjustable confluence clamp, which comprises a clamp body, a cable crimping body and a sleeve rod, wherein a rear movable clamp head of the clamp body can be far away from or close to a front fixed clamp head, so as to be adapted to clamp cables of different sizes, and a push-pull rod in the sleeve rod is used to realize the forward and backward movement of the rear movable clamp head. Because the loop bar adopts hollow structure, increased the manufacturing degree of difficulty, reduced the current-carrying capacity, the axis of loop bar and the axis of cable conductor crimping body are nearly crossing the setting perpendicularly, and this structure makes cable conductor crimping body structure complicated to the whole overall shape length and the weight of clamp that should converge are great, and is not very friendly to field operation's spatiality and convenience.

The puncture blade in the existing confluence clamp is formed by punching and adopts a detachable mode, so that the contact resistance in a conductive path is increased. Meanwhile, the clamping reaction force of the clamping busbar is borne by the single thin puncture blade, so that the clamping busbar is easy to damage after repeated use. The puncture blade of the existing confluence clamp acts on the copper bar in a mode of eccentric force application instead of direct front force application, and the puncture effectiveness and reliability of the existing confluence clamp are relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact clamp that converges aims at solving above-mentioned problem through this compact clamp that converges.

In order to achieve the above object, the technical solution of the present invention is to provide a compact confluence clamp, which comprises a clamp body and a socket assembly, wherein the clamp body comprises a fixed clamp head, a movable clamp head, an adjusting member and a fixing plate, which are arranged in an insulating sleeve; a clamping space is formed between the fixed clamp head and the movable clamp head; the socket assembly comprises a jack sleeve arranged in the insulating shell, and the front end of the jack sleeve extends into the insulating sleeve and penetrates through the fixing plate to be fixedly connected with the fixed clamp head; the part of the fixing plate corresponding to the clamping space is provided with a threaded hole, and the adjusting piece penetrates through the threaded hole to be fixedly connected with the movable clamp head; the reciprocating movement of the movable clamp head is realized through the axial movement of the adjusting piece. Through above-mentioned structure, simplified the structure to on acting on the copper bar with the mode of positive application of force, puncture validity and centre gripping reliability increase, use instrument easy operation at the rear end during the operation.

Furthermore, the adjusting piece is an adjusting bolt, and the adjusting bolt is in threaded fit with the threaded hole.

Furthermore, one end of the movable clamp head is sleeved on the jack sleeve and is electrically connected with the jack sleeve through a reed, and the adjusting piece is an adjusting screw rod; the driving nut is provided with an internal thread through hole, an external thread and a limiting head, the external thread of the driving nut is in threaded fit connection with the threaded hole, the internal thread through hole is in threaded fit connection with the adjusting screw, the adjusting screw is fixedly connected with the other end of the movable clamp head, and the thread pitches of the two threaded fits are different.

Further, the fixed clamp head is provided with an integrally formed puncture blade, and preferably, the movable clamp head is provided with an integrally formed puncture blade. Through the arrangement, the puncture point and the clamp seat are integrally formed, the problem that contact pairs are increased when the puncture blade and the clamp seat are clamped in the prior art is solved, and the overall contact resistance is optimized due to the structural improvement; meanwhile, the service life of the puncture point is prolonged by integral forming, and the problem that the puncture blade is easy to damage due to large stress after being used for a plurality of times in the prior art is solved.

Further, the socket assembly is provided with a locking mechanism which is matched and locked with the plug; the locking mechanism comprises an elastic piece sleeved on the jack sleeve; one side of the elastic piece facing the jack sleeve is connected with a limiting gasket, and the jack sleeve is provided with a stop groove capable of being matched with a plug in a locking mode.

Furthermore, the socket assembly further comprises a stop block, the stop block is fixedly connected with the jack sleeve, an elastic conical ring is arranged on the outer wall of the stop block, and the insulating shell is clamped with the elastic conical ring.

Furthermore, a protection needle is arranged inside the rear end of the jack sleeve, a finger-touch-preventing cap is arranged at the end of the protection needle, and the finger-touch-preventing cap and the protection needle are made of insulating materials.

Furthermore, a sealing ring and an insulating cap are arranged at the rear end of the jack sleeve. The whole body is protected by a sealing ring, and water inlet and dust inlet are avoided.

The utility model relates to a compact structure is applicable to the less scene of operating space, and the quality is light, mother arranges and the moment of flexure that the insulator bore in the cabinet when reducing the use to the mode of positive application of force is used in the copper bar, and puncture validity and reliability increase, use tool at rear end easy operation during the operation.

Drawings

Fig. 1 is an external structural schematic diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the separation according to embodiment 1 of the present invention.

Fig. 3 is a sectional view of the internal structure of embodiment 1 of the present invention.

Fig. 4 is a sectional view of the internal structure of embodiment 2 of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1: as shown in fig. 1-3, a compact bus bar clamp comprises a clamp body 1 and a socket assembly 2, wherein the clamp body 1 comprises a fixed clamp head 12, a movable clamp head 13, an adjusting bolt 14 and a fixing plate 15 which are arranged in an insulating sleeve 11. A clamping space is formed between the fixed clamp head 12 and the movable clamp head 13. The part of the fixing plate 15 corresponding to the clamping space is provided with a threaded hole 16, an adjusting bolt 14 is screwed into the threaded hole 16, the end part of the adjusting bolt 14 is fixedly connected with the movable clamp head 13, and the movable clamp head 13 moves towards the fixed clamp head 12 by screwing the adjusting bolt 14, so that the copper bar is clamped.

The stationary jaw head 12 is provided with a piercing blade 20, and preferably, the stationary jaw head 12 and the piercing blade 20 are integrally formed.

The jack assembly 2 includes a jack housing 22 disposed within an insulative housing 21. The front end of the jack sleeve 22 extends into the insulating sleeve 11 and passes through the fixing plate 15 to be fixedly connected with the fixed clamp head 12. An adjusting sleeve 19 is sleeved on the jack sleeve 22 between the fixing plate 15 and the fixed clamp head 12, and the adjusting sleeve 19 with a corresponding specification can be selected according to the thickness of the clamped copper bar.

The socket assembly 2 is provided with a locking mechanism which is locked in cooperation with the plug. The locking mechanism comprises a pressure spring 23 sleeved at the rear end of the jack sleeve 22. One side of the pressure spring 23 facing the tail end of the jack sleeve 22 is connected with a limiting gasket 24, a limiting boss used for limiting the limiting gasket 24 is arranged on the jack sleeve 22, a stop groove (not shown) commonly used in the prior art is arranged on the jack sleeve 22, and when a plug is inserted and rotates for a certain angle, a locking pin on the plug can be clamped into the stop groove. After the clamping of the copper bar is completed, the plug is inserted into the jack sleeve 22, after the plug is inserted into the jack sleeve 22, the end of the plug shell contacts the limiting gasket 24, the pressure spring 23 is compressed, then the plug is horizontally rotated and the force applied to the plug is loosened, then the pressure spring 23 resets, the plug is clamped in the stopping groove of the jack sleeve 22, and therefore the plug is prevented from being separated from the stopping groove.

The other side of the pressure spring 23 is connected with a stop block 25, and the plug hole sleeve 22 is sequentially sleeved with the pressure spring 23 and the stop block 25 along the plug insertion direction. The other side of the stop 25 is limited by a shaft retainer ring 26 fixed on the jack sleeve 22; an elastic conical ring 27 is arranged on the outer wall of the stop 25, and the elastic conical ring 27 is clamped in the insulating shell 21.

The inside protection needle 28 that is equipped with in the rear end of plug hole cover 22, the tip of protection needle 28 is equipped with prevents touching the finger cap 29, prevents touching finger cap 29 and protection needle 28 and all adopts insulating material to make, avoids the finger mistake to insert in the plug hole cover 22. The rear end of the jack sleeve 22 is screwed with an insulating cap 30.

The rear end of the jack sleeve 22 is also provided with a sealing ring 31; when the plug is inserted into the socket 22, the plug is in close contact with the sealing ring 31 to form a seal, preventing moisture/dust from entering the socket 22.

Example 2 differs from example 1 in that, as shown in fig. 4: the movable clamp head 13 has a forked end (conventional in the art, forked, not shown) which fits over the socket sleeve 22 and makes electrical connection through the spring blades. The movable clamping head 13 is also provided with a puncture blade 20, and preferably, the movable clamping head 13 and the puncture blade 20 are integrally formed.

The fixing plate 15 is provided with a screw hole 16 at a portion corresponding to the clamping space. The driving nut 17 is provided with an internal thread through hole 171, an external thread 172 and a limit head 173, the external thread 172 of the driving nut 17 is in thread fit connection with the threaded hole 16, the internal thread through hole 171 is in thread fit connection with the adjusting screw 18, and the adjusting screw 18 is fixedly connected with the other end of the movable clamp head 13. The thread pitches of the two threaded matches are different, and the movable clamp head 13 moves towards the fixed clamp head 12 by rotating the driving nut 17, so that the copper bar is clamped. The limiting head 173 serves to limit the maximum extent of advancement of the adjusting screw.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A compact bus bar clamp comprising a clamp body (1) and a socket assembly (2), characterized in that: the clamp body (1) comprises a fixed clamp head (12), a movable clamp head (13), adjusting pieces (14, 18) and a fixing plate (15), which are arranged in an insulating sleeve (11); a clamping space is formed between the fixed clamp head (12) and the movable clamp head (13); the socket assembly (2) comprises a jack sleeve (22) arranged in an insulating shell (21), and the front end of the jack sleeve (22) extends into the insulating sleeve (11) and penetrates through the fixing plate (15) to be fixedly connected with the fixed clamp head (12); a threaded hole (16) is formed in the part, corresponding to the clamping space, of the fixing plate (15), and the adjusting piece (14) penetrates through the threaded hole (16) to be fixedly connected with the movable clamp head (13); the movable clamping head (13) moves back and forth through the axial movement of the adjusting piece (14).

2. The compact bus bar clamp of claim 1, wherein: the adjusting pieces (14, 18) are adjusting bolts which are in threaded fit with the threaded holes (16).

3. A compact bus bar clamp as defined in claim 2, wherein: an adjusting sleeve (19) is sleeved on the jack sleeve (22) and positioned between the fixing plate (15) and the fixed clamp head (12).

4. A compact bus bar clamp according to any one of claims 1 to 3, wherein: the fixed clamp head (12) is provided with a puncture blade (20) which is integrally formed.

5. The compact bus bar clamp of claim 1, wherein: the movable clamp head (13) is provided with a fork-shaped end, the fork-shaped end is sleeved on the jack sleeve (22) and is electrically connected with the jack sleeve through a reed, and the adjusting pieces (14 and 18) are adjusting screw rods; drive nut (17) have internal thread through-hole (171), external screw thread (172) and spacing head (173), external screw thread (172) and screw hole (16) screw-thread fit connection of drive nut (17), internal thread through-hole (171) with adjusting screw-thread fit connection, adjusting screw with the other end fixed connection of activity tong head (13), two screw-thread fit's pitch is different.

6. The compact bus bar clamp of claim 5, wherein: the fixed clamp head (12) and the movable clamp head (13) are provided with integrally formed puncture blades (20).

7. A compact bus bar clamp according to claim 2 or 5, wherein: the socket assembly (2) is provided with a locking mechanism which is matched and locked with the plug; the locking mechanism comprises an elastic piece (23) sleeved on the jack sleeve (22); one side of the elastic piece (23) facing the jack sleeve (22) is connected with a limiting gasket (24), and the jack sleeve (22) is provided with a stop groove capable of being matched with a plug in a locking mode.

8. The compact bus bar clamp of claim 7, wherein: socket subassembly (2) further includes dog (25), dog (25) with jack cover (22) fixed connection, dog (25) outer wall is equipped with elasticity toper ring (27), insulating casing (21) inside with elasticity toper ring (27) joint.

9. A compact bus bar clamp according to claim 2 or 5, wherein: the anti-theft device is characterized in that a protective needle (28) is arranged inside the rear end of the jack sleeve (22), a finger-touch-proof cap (29) is arranged at the end part of the protective needle (28), and the finger-touch-proof cap (29) and the protective needle (28) are made of insulating materials.

10. A compact bus bar clamp according to claim 2 or 5, wherein: and a sealing ring (31) and an insulating cap (30) are arranged at the rear end of the jack sleeve (22).