CN210509883U

CN210509883U - Transmission shaft bolt

Info

Publication number: CN210509883U
Application number: CN201921116513.3U
Authority: CN
Inventors: 涂力波
Original assignee: Zhejiang Ruizhao Science And Technology Co ltd
Current assignee: Zhejiang Ruizhao Science And Technology Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-12
Anticipated expiration: 2029-07-16

Abstract

The utility model belongs to the technical field of the bolt technique and specifically relates to a transmission shaft bolt, including the bolt head, the bottom of bolt head is provided with the transmission head, transmission head and bolt head fixed connection, the bottom of transmission head is provided with the external screw thread pole, external screw thread pole and transmission head fixed connection, the bolt head top is provided with the holding tank, the joint has interior hexagonal bolt head in the holding tank, the inside of external screw thread pole is provided with the internal thread groove, the internal thread groove communicates with each other with the holding tank, the internal thread inslot threaded connection has the internal thread pole, the top and the interior hexagonal bolt head fixed connection of internal thread pole, the bottom of internal thread pole is equipped with the pressure piece, the internal thread pole is taken and is established on the pressure piece, be provided with the chute in the external screw thread pole, the chute is pegged graft and is had. The utility model discloses a practicality is strong, is worth promoting.

Description

Transmission shaft bolt

Technical Field

The utility model relates to a bolt technical field especially relates to a transmission shaft bolt.

Background

The transmission bolt is a mechanical part, the cylindrical threaded fastener of adapted nut, a class of fastener that comprises head and screw rod (the cylinder that has the external screw thread), need with the nut cooperation, be used for the fastening connection two parts that have the through-hole, this kind of connection form is called bolted connection, if unscrew the nut from the bolt, can make these two parts separate again, so bolted connection belongs to detachable connection, but ordinary bolt, nut connecting piece exist easily not hard up not enough, especially be in the great and frequent operational environment of vibration impact load for a long time, connect fastening effect very limited, it is not hard up or drops easily during the long-term use, influence equipment stability in use and reliability in utilization.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of easy looseness in the prior art and providing a transmission shaft bolt.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a transmission shaft bolt, includes the bolt head, the bottom of bolt head is provided with the transmission head, transmission head and bolt head fixed connection, the bottom of transmission head is provided with the external screw thread pole, external screw thread pole and transmission head fixed connection, the bolt head top is provided with the holding tank, the joint has hexagon socket head bolt head in the holding tank, the inside of external screw thread pole is provided with the internal thread groove, the internal thread groove communicates with each other with the holding tank, threaded connection has the internal thread pole inside the internal thread groove, the top and hexagon socket head bolt head fixed connection of internal thread pole, the bottom of internal thread pole is equipped with the briquetting, the internal thread pole is taken and is established on the briquetting, be provided with the chute in the external screw thread pole, the chute is pegged graft and is had the pressure bar, the top of pressure bar is rotated through round pin axle and is connected with the.

Preferably, the outer side of the external thread rod is fixedly connected with a thread strip.

Preferably, the top of the hexagon socket head is provided with a hexagon groove.

Preferably, the slotting angle of the inclined groove is 60 degrees.

Preferably, the length of the internal thread rod is equal to the depth of the internal thread groove.

The utility model provides a pair of transmission shaft bolt, beneficial effect lies in: the design of the pressing block and the pressing rod is used for enabling the inner thread rod to move downwards to act on the pressing block through tightly rotating the hexagon socket head bolt after the transmission shaft bolt is installed, then the pressing block acts on the pressing rod to move downwards, the pressing rod is enabled to abut against the connecting piece, the outer thread rod is prevented from loosening, and safety is improved.

Drawings

Fig. 1 is a schematic perspective view of a transmission shaft bolt according to the present invention;

fig. 2 is a schematic view of a partial three-dimensional structure of a transmission shaft bolt provided by the present invention;

fig. 3 is a cross-sectional view of a transmission shaft bolt provided by the present invention.

In the figure: the bolt comprises a bolt head 1, a transmission head 2, an external thread rod 3, a thread strip 31, an accommodating groove 4, an inner hexagonal bolt head 5, a hexagonal groove 6, an internal thread rod 7, an internal thread groove 71, a pressing block 8, a pressing rod 9 and an inclined groove 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a transmission shaft bolt includes a bolt head 1, a transmission head 2 is disposed at the bottom of the bolt head 1, the transmission head 2 is fixedly connected with the bolt head 1, an external thread rod 3 is disposed at the bottom of the transmission head 2, the external thread rod 3 is fixedly connected with the transmission head 2, a thread strip 31 is fixedly connected to the outer side of the external thread rod 3, an accommodating groove 4 is disposed at the top of the bolt head 1, an inner hexagonal bolt head 5 is clamped in the accommodating groove 4, a hexagonal groove 6 is disposed at the top of the inner hexagonal bolt head 5, an inner thread groove 71 is disposed in the external thread rod 3, the inner thread groove 71 is communicated with the accommodating groove 4, an inner thread rod 7 is connected to the inner thread groove 71 through a thread, the length of the inner thread rod 7 is equal to the depth of the inner thread groove 71, and the top end of the inner thread rod.

The bottom of the internal thread rod 7 is provided with a pressing block 8, and the internal thread rod 7 is erected on the pressing block 8. Be provided with chute 10 in the external screw thread pole 3, the fluting angle of chute 10 is 60 degrees, chute 10 is pegged graft and is had the pressure lever 9, the top of pressure lever 9 is passed through the round pin axle and is rotated with the briquetting 8 and be connected, interior briquetting 8 with support the design of pressure lever 9, the effect lies in, after the transmission shaft bolt has been installed, through turning tight hexagon socket head bolt head 5, make internal screw rod 7 move down and act on the briquetting 8, then 8 effects of briquetting support the depression bar 9 and move down, thereby make pressure lever 9 contradict with the connecting piece, avoid external screw thread pole 3 not hard up, and the safety is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a transmission shaft bolt, includes bolt head (1), the bottom of bolt head (1) is provided with transmission head (2), transmission head (2) and bolt head (1) fixed connection, the bottom of transmission head (2) is provided with external screw thread pole (3), external screw thread pole (3) and transmission head (2) fixed connection, its characterized in that, bolt head (1) top is provided with holding tank (4), the joint has hexagon socket head cap bolt head (5) in holding tank (4), the inside of external screw thread pole (3) is provided with internal thread groove (71), internal thread groove (71) and holding tank (4) communicate with each other, internal thread groove (71) internal thread connection has internal thread pole (7), the top and hexagon socket head cap bolt head (5) fixed connection of internal thread pole (7), the bottom of internal thread pole (7) is equipped with suppresses piece (8), the inner threaded rod (7) is erected on the pressing block (8), an inclined groove (10) is arranged in the outer threaded rod (3), the inclined groove (10) is connected with a pressing rod (9) in an inserted mode, and the top end of the pressing rod (9) is rotatably connected with the pressing block (8) through a pin shaft.

2. A propeller shaft bolt according to claim 1, characterised in that a threaded strip (31) is fixedly attached to the outside of the externally threaded rod (3).

3. A propeller shaft bolt according to claim 1, characterised in that the top of the socket head (5) is provided with a hexagonal groove (6).

4. A propeller shaft bolt according to claim 1, in which the slot angle of the chute (10) is 60 degrees.

5. A propeller shaft bolt according to claim 1, in which the length of the internally threaded shank (7) is equal to the depth of the internally threaded slot (71).