阅读说明：本技术 压力紧固件 (Pressure fastener ) 是由 杨再登 陈瑞斌 古亚军 崔晨阳 赵超鹏 卫亮昆 于 2019-09-17 设计创作，主要内容包括：本发明涉及压力紧固件,有效的解决了固定引流板时螺母易回退、工人不易紧固的问题；其解决的技术方案是包括螺栓,其特征在于,螺栓外螺纹套设有螺纹套筒,螺纹套筒上端外壁开设有螺纹,螺纹套筒上部螺纹套设有螺帽,螺帽下端有弹性件；螺纹套筒外部开设有多个气道,每个气道两侧均上下并列的开设有两组通气孔,每个气道内均上下滑动连接有上活塞,每个上活塞通过设置在气道内的连杆机构连接有上下滑动连接在相应起到内的下活塞；螺帽外部同轴转动连接有推动环,每个上活塞均通过杆件和推动环固定连接；本发明结构简洁,有效的增加了螺栓和紧固件、紧固夹和螺帽之间的预紧力,紧固效果好,螺母不易回退,易于操作,实用性强。(The present invention relates to pressure fastener, when effective solution fixed drainage plate, nut easily retracts, worker is not easy the problem of fastening；Its technical solution solved be include bolt, which is characterized in that bolt external thread sleeve is equipped with screw shell, and screw shell upper end outer wall offers screw thread, and screw shell top thread bush is equipped with nut, the flexible part in nut lower end；Multiple air flues are offered outside screw shell, each air flue two sides are arranged side by side up and down to offer two groups of ventholes, it is slided up and down in each air flue and is connected with upper piston, each upper piston passes through the link mechanism being arranged in air flue and is connected with the lower piston for sliding up and down and being connected in corresponding play；Nut outer, coaxial is rotatably connected to promotion ring, and each upper piston passes through rod piece and is fixedly connected with promotion ring；Structure of the invention is succinct, and the pretightning force being effectively increased between bolt and fastener, anchorage clip and nut, fastening effect is good, and nut is not easy to retract, easily operated, practical.)

1. pressure fastener, including bolt (1), which is characterized in that bolt (1) external thread sleeve is equipped with screw shell (2), Screw shell (2) upper end outer wall offers screw thread, and the screw shell (2) top thread bush is equipped with nut (3), institute Nut (3) lower end stated is fixedly connected with the setting elastic component (4) internal in screw shell (2)；

Multiple air flues (5) are offered outside the screw shell (2), each described air flue (5) two sides are arranged side by side up and down Two groups of ventholes (6) are offered, is slided up and down in the air flue (5) and is connected with upper piston (7), it is each described upper Piston (7), which is connected with to slide up and down to be connected to by the link mechanism being arranged in air flue (5), accordingly plays interior lower piston (8)；

Described nut (3) outer, coaxial, which is rotatably connected to, pushes ring (9), the upper piston (7) by rod piece and The promotion ring (9) is fixedly connected.

2. pressure fastener according to claim 1, which is characterized in that offer several spiral shells on the promotion ring (9) Pit (12), each described upper piston (7) upper end are rotatably connected to screw rod (13), each screw rod (13) upper end point Not and several threaded holes (12) on ring (9) is pushed to cooperate.

3. pressure fastener according to claim 2, which is characterized in that coaxial solid in the middle part of each screw rod (13) Surely it is connected with screw rod (13) gear, the screw shell (2) outer, coaxial is rotatably connected to while and several screw rods (13) outer gear ring (15) that gear engages.

4. pressure fastener according to claim 1, which is characterized in that each described upper piston (7) side opens up There are horizontal concrete chute (16), slidably connects positioning wedged block (17) in each horizontal concrete chute (16), each described determines Position fixture block (17) is connected with corresponding horizontal concrete chute (16) by reset spring (18), and each air flue (5) opens up There are positioning through hole (19), each positioning wedged block (17) can be placed in corresponding positioning through hole (19)；

Each described horizontal concrete chute (16) lower end, which offers, lets out power notch (20).

5. pressure fastener according to claim 1, which is characterized in that bolt (1) external thread sleeve is equipped with setting Nut (21) below screw shell (2).

Technical field

The present invention relates to technical field of fastening, specifically pressure fastener.

Background technique

Between two power transmission lines between two high voltage transmission lines or near transformer, it usually needs drained by two Two power transmission lines are fixedly clamped by plate, in this process, generally use bolt and clamp two pieces of drainage plates, however in the process In, it is usually present following problems:

1, screw bolt and nut in use for some time, is easy to appear the case where nut retracts, causes drainage plate to the pressure of electric wire Clamp force reduces failure；

2, because drainage plate is mostly aluminum alloy material, worker causes nut to retract when turning nut, to prevent from unscrewing, usually It can be easy firmly relatively violent, and it will cause drainage plate deformations in this way, so as to cause failure.

Therefore continue it is a kind of convenient for worker use and be not easy the fastener to retract.

Therefore, the present invention provides the new pressure fastener of one kind to solve the problems, such as this.

Summary of the invention

For above situation, for the defect for overcoming the prior art, the present invention provides a kind of pressure fastener, effective solution Nut easily retracts, worker is not easy the problem of fastening when fixed drainage plate.

The present invention includes bolt, which is characterized in that the bolt external thread sleeve is equipped with screw shell, the thread bush Cylinder upper end outer wall offers screw thread, and the screw shell top thread bush is equipped with nut, and the nut lower end is fixedly connected There is the elastic component being arranged in inside screw shell；

Multiple air flues are offered outside the screw shell, the air flue two sides are arranged side by side up and down to offer two Group venthole each slides up and down in the air flue and is connected with upper piston, and each upper piston is by setting in gas Link mechanism in road, which is connected with to slide up and down to be connected to, accordingly plays interior lower piston；

The nut outer, coaxial is rotatably connected to promotion ring, and each upper piston passes through rod piece and the promotion Ring is fixedly connected.

Preferably, each air flue lower end offers pressurized hole, is coaxially disposed outside each pressurized hole There is the rubber ring for being fixedly connected on screw shell bottom.

Preferably, several threaded holes are offered on the promotion ring, each upper piston upper end is rotatablely connected There is screw rod, each screw rod upper end cooperates with several threaded holes on promotion ring respectively.

Preferably, screw gear has been fixedly and coaxially connected in the middle part of the screw rod, outside the screw shell Rotate coaxially the outer gear ring for being connected with while engaging with several screw gears.

Preferably, each upper piston side offers horizontal concrete chute, sliding in each horizontal concrete chute Dynamic to be connected with positioning wedged block, each positioning wedged block is connected with corresponding horizontal concrete chute by reset spring, Mei Gesuo The air flue stated offers positioning through hole, and each positioning wedged block can be placed in corresponding positioning through hole；

Each horizontal concrete chute lower end, which offers, lets out power mouth.

Preferably, the nut below screw shell is arranged in the bolt external thread sleeve.

Preferably, coaxially fixed grade of practicing is connected with screw cap sleeve for the nut lower end, and the screw cap sleeve is set in It is engaged outside screw shell and with screw shell screw thread, the screw cap sleeve outer wall is carved with scale.

Preferably, the link mechanism includes the transfer connecting rod being rotatably connected in air flue, the transfer connecting rod one End is rotatably connected to the upper connecting rod that the other end is rotatably connected on corresponding upper piston lower end, and the transfer connecting rod other end, which rotates, to be connected It is connected to the lower link for being rotatably connected on corresponding lower piston upper end.

Preferably, positioning through hole described in each air flue can be the multiple of arranged in parallel from top to bottom, each described Positioning through hole outside be provided with sealing-plug.

Preferably, multiple sealing rings are rotatably connected to outside the screw shell, each sealing ring can be by same level Interior several positioning through hole sealing.

The present invention makes improvement aiming at the problem that nut easily retracts, worker is not easy to fasten when fixed drainage plate, will be existing Nut is changed to pressure fastener or adds pressure fastener above existing nut, nut is pressed in drainage in the class, to make Nut does not have the space of rollback；Simultaneously by elastic component and dependency structure, increase nut and fastener, fastener and bolt it Between pretightning force and frictional force be not easy to loosen, structure of the invention is succinct, effectively to make stronger between part each section The pretightning force increased between bolt and fastener, anchorage clip and nut, fastening effect is good, and nut is not easy to retract, and is easy to grasp Make, it is practical.

Detailed description of the invention

Fig. 1 is schematic front view of the present invention.

Fig. 2 is the present invention without nut stereoscopic schematic diagram one.

Fig. 3 is that the present invention has nut stereoscopic schematic diagram.

Fig. 4 is the present invention without nut stereoscopic schematic diagram two.

Fig. 5 is schematic cross-sectional view of the present invention.

Fig. 6 is upper piston of the present invention and its internal structure schematic cross-sectional view.

Fig. 7 is section view stereoscopic schematic diagram of the present invention.

Fig. 8 is screw shell stereoscopic schematic diagram of the present invention.

Fig. 9 is screw rod of the present invention and its dependency structure schematic front view.

Specific embodiment

For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through Fig. 9 pairs In the detailed description of embodiment, can clearly it present.The structure content being previously mentioned in following embodiment is attached with specification Figure is reference.

Each exemplary embodiment of the invention is described below with reference to accompanying drawings.