CN218510038U

CN218510038U - Detachable drive shaft protective sheath

Info

Publication number: CN218510038U
Application number: CN202222940655.XU
Authority: CN
Inventors: 孙德辉; 马健; 张强; 李元才; 姜超; 阎晨闯
Original assignee: Dalian Xinken Machinery Co ltd
Current assignee: Dalian Xinken Machinery Co ltd
Priority date: 2022-11-05
Filing date: 2022-11-05
Publication date: 2023-02-21
Anticipated expiration: 2032-11-05

Abstract

The utility model discloses a detachable drive shaft protective sheath belongs to drive shaft technical field, and it includes inboard protective sheath, the back of inboard protective sheath is equipped with inboard ball joint, two spacing holes have been seted up to the side of inboard protective sheath, two standing grooves have been seted up at the back of inboard protective sheath, the back of inboard protective sheath is equipped with sealed gasbag. This detachable drive shaft protective sheath, through setting up inboard protective sheath, inboard ball joint, spacing hole, the gag lever post, a piston section of thick bamboo and sealed gasbag, under the mutually supporting in gag lever post and spacing hole, make inboard protective sheath and inboard ball joint can install and dismantle the operation, the sealed gasbag and the seal groove in close contact with of inflation simultaneously, further avoided external moisture to get into the inside destruction that causes the drive shaft spline of inboard protective sheath from the junction, thereby the life of drive shaft spline has been guaranteed, also make its sealed effect obtain improving simultaneously.

Description

Detachable drive shaft protective sheath

Technical Field

The utility model belongs to the technical field of the drive shaft, specifically be a detachable drive shaft protective sheath.

Background

The transmission shaft of car is exactly the drive shaft, the drive shaft is on transmitting the output power of derailleur to the wheel, that is to say it is the thing of connecting the derailleur with the wheel, the drive shaft uses and protects the drive shaft spline through the collocation protective sheath together at the in-process of work, but current drive shaft protective sheath adopts the cuff to lock the installation mostly, long-time the use, make the inside drive shaft spline of protective sheath receive the erosion of external moisture very easily, lead to the drive shaft spline impaired, the flexibility reduces, thereby make its sealed effect ideal inadequately, therefore, need a detachable drive shaft protective sheath to improve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a detachable drive shaft protective sheath has solved and has used for a long time to make the inside drive shaft spline of protective sheath receive the erosion of external moisture very easily, leads to its problem impaired, that the flexibility reduces.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a detachable drive shaft protective sheath, includes inboard protective sheath, the back of inboard protective sheath is equipped with inboard ball joint, two spacing holes have been seted up to the side of inboard protective sheath, two standing grooves have been seted up to the back of inboard protective sheath, the back of inboard protective sheath is equipped with air-tight bag, the back of inboard protective sheath is equipped with two piston assemblies, piston assembly and air-tight bag are connected, the front of inboard ball joint is equipped with two dead levers, piston assembly and dead lever overlap joint, the front of inboard ball joint is equipped with two positioning mechanism, positioning mechanism respectively with standing groove and spacing hole overlap joint.

As a further aspect of the present invention: the front of inboard protective sheath and the back of inboard ball joint all are equipped with the axis body, spacing downthehole overlap joint has sealed lid, spacing hole and standing groove intercommunication.

As a further aspect of the present invention: the front surface of the inner side ball joint is provided with a sealing groove, and the sealing groove is in lap joint with the sealing air bag.

As a further aspect of the present invention: the piston assembly comprises a piston cylinder, the piston cylinder is arranged on the back of the inner side protective sleeve, a push rod is connected in the piston cylinder in a sliding mode, a push plate is arranged at one end of the push rod, and the push plate is connected in the piston cylinder in a sliding mode.

As a further aspect of the present invention: the other end of the push rod is in lap joint with the fixed rod, a spring is arranged on the front face of the push plate, the other end of the spring is arranged in the piston cylinder, a hose is arranged on the front face of the piston cylinder, and the other end of the hose is communicated with the sealing air bag.

As a further aspect of the present invention: the positioning mechanism comprises a fixed block, the fixed block is arranged on the front face of the inner side ball joint and is in lap joint with the placing groove, and a sliding sleeve is arranged on the fixed block.

As a further aspect of the present invention: sliding connection has the gag lever post in the sliding sleeve, the bottom of gag lever post is equipped with the elasticity telescopic link, the elasticity telescopic link is established in the fixed block, gag lever post and spacing downthehole overlap joint.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. this detachable drive shaft protective sheath, through setting up inboard protective sheath, inboard ball joint, spacing hole, the gag lever post, piston cylinder and air-tight seal, control inboard protective sheath and inboard ball joint contact, make fixed block and standing groove contact, standing groove extrusion two gag lever posts move toward the direction that is close to each other, make the gag lever post withdraw to in the sliding sleeve, when the gag lever post moves under the spacing hole, elastic telescopic rod is with the ejecting sliding sleeve of gag lever post and with spacing hole contact, thereby it is fixed with inboard ball joint installation, the dead lever extrusion push rod simultaneously, make the gas in the piston cylinder be extrudeed, the gas that is extruded passes through the hose and transmits to in the air-tight seal, make air-tight seal inflation and seal groove contact, and then inboard protective sheath seals up with the junction of inboard ball joint, under the mutually supporting of gag lever post and spacing hole, make inboard protective sheath and inboard ball joint can install and dismantle the operation, inflation air-tight seal and seal groove in-tight contact simultaneously, further avoided external moisture to get into the inboard inside of protective sheath from the junction and cause destruction to the drive shaft spline, thereby guarantee the life of drive shaft, also make its sealed effect obtain simultaneously.

2. This detachable drive shaft protective sheath, through setting up seal groove and hose, when installing inboard protective sheath and inboard ball-joint, the fixed rod is to push rod contact extrusion for the inside gas of piston cylinder is extruded, and the hose has then guaranteed to be transferred to in the air bag smoothly by extruded gas simultaneously, makes air bag inflation and seal groove in close contact with.

3. This detachable drive shaft protective sheath, through setting up elasticity telescopic link, sliding sleeve and gag lever post, elasticity telescopic link and sliding sleeve all play support and limiting displacement to the gag lever post, and elasticity telescopic link and sliding sleeve mutually support down to guaranteed that the phenomenon that the gag lever post can not appear rocking at will at the in-process of motion.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic sectional three-dimensional structure of the fixing block of the present invention;

FIG. 3 is an enlarged schematic view of the portion A of FIG. 2 according to the present invention;

fig. 4 is a three-dimensional structure diagram of the inner side protective cover of the present invention;

fig. 5 is a schematic structural diagram of a rear view section of the piston cylinder according to the present invention;

in the figure: 1. an inner protective sleeve; 2. an inner ball joint; 3. a shaft body; 4. a sealing cover; 5. a sealing groove; 6. fixing the rod; 7. a positioning mechanism; 71. a fixed block; 72. a sliding sleeve; 73. a limiting rod; 74. an elastic telescopic rod; 8. a piston assembly; 81. a piston cylinder; 82. a push rod; 83. pushing a plate; 84. a spring; 85. a hose; 9. sealing the air bag; 10. a placement groove; 11. and a limiting hole.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-5, the utility model provides a technical solution: a detachable driving shaft protective sleeve comprises an inner side protective sleeve 1, wherein an inner side ball joint 2 is arranged on the back surface of the inner side protective sleeve 1, a shaft body 3 is arranged on the front surface of the inner side protective sleeve 1 and the back surface of the inner side ball joint 2, two limiting holes 11 are formed in the side surface of the inner side protective sleeve 1, a sealing cover 4 is lapped in the limiting holes 11, two placing grooves 10 are formed in the back surface of the inner side protective sleeve 1, the limiting holes 11 are communicated with the placing grooves 10, through the arrangement of the sealing cover 4, the limiting holes 11 play a role in supporting and limiting the sealing cover 4, meanwhile, the sealing cover 4 plays a role in sealing a limiting block, and therefore external moisture is prevented from entering the inner side protective sleeve 1 through the limiting holes 11; by arranging the inner ball joint 2 and the inner protective sleeve 1, the inner ball joint 2 plays a role in supporting and limiting the shaft body 3, so that the shaft body 3 is prevented from shaking randomly, and meanwhile, the inner protective sleeve 1 is convenient to install and use, so that the inner protective sleeve 1 protects a driving shaft spline;

the back of the inner side protective sleeve 1 is provided with a sealing airbag 9, the front of the inner side ball joint 2 is provided with a sealing groove 5, the sealing groove 5 is in lap joint with the sealing airbag 9, the back of the inner side protective sleeve 1 is provided with two piston assemblies 8, each piston assembly 8 comprises a piston cylinder 81, each piston cylinder 81 is arranged on the back of the inner side protective sleeve 1, a push rod 82 is connected in the piston cylinder 81 in a sliding mode, one end of each push rod 82 is provided with a push plate 83, each push plate 83 is connected in the corresponding piston cylinder 81 in a sliding mode, the other end of each push rod 82 is in lap joint with the corresponding fixed rod 6, the front of each push plate 83 is provided with a spring 84, the other end of each hose 85 is communicated with the corresponding sealing airbag 9, the piston cylinders 81 and the springs 84 are arranged, the piston cylinders 81 support and limit the push plates 83, the push plates 83 can stably move in the piston cylinders 81, and the push plates 82 can be driven to reset by the springs 84 when the push rods 82 are separated from the fixed rods 6; by arranging the hose 85, the hose 85 ensures that the gas extruded inside the piston cylinder 81 is smoothly transmitted into the sealed air bag 9; by arranging the sealing air bag 9 and the sealing groove 5, the sealing air bag 9 is expanded to be tightly contacted with the sealing groove 5, so that the joint can have better sealing performance;

the piston assembly 8 is connected with the air-tight bag 9, the front of the inner side ball joint 2 is provided with two fixing rods 6, the piston assembly 8 is in lap joint with the fixing rods 6, the front of the inner side ball joint 2 is provided with two positioning mechanisms 7, each positioning mechanism 7 comprises a fixing block 71, the fixing block 71 is arranged on the front of the inner side ball joint 2, the fixing block 71 is in lap joint with the placing groove 10, the fixing block 71 is provided with a sliding sleeve 72, a limiting rod 73 is connected in the sliding sleeve 72 in a sliding mode, the bottom end of the limiting rod 73 is provided with an elastic telescopic rod 74, the elastic telescopic rod 74 is arranged in the fixing block 71, the limiting rod 73 is in lap joint with the limiting hole 11, the positioning mechanisms 7 are in lap joint with the placing groove 10 and the limiting hole 11 respectively, and by arranging the elastic telescopic rod 74, the sliding sleeve 72 and the limiting rod 73, the elastic telescopic rod 74 plays a supporting and limiting role on the limiting rod 73, and the sliding sleeve 72 plays a limiting role on the limiting rod 73, so that the limiting rod 73 can move up and down stably in the sliding sleeve 72; through setting up spacing hole 11 and standing groove 10, spacing hole 11 plays support and limiting displacement to gag lever post 73, and then fixes inboard protective sheath 1 installation, also can make things convenient for the staff to hold the instrument simultaneously with the ejecting spacing hole 11 of gag lever post 73 to make things convenient for inboard protective sheath 1 and inboard ball joint 2 to dismantle the operation.

The utility model discloses a theory of operation does:

when the elastic expansion rod 74 is compressed, when the limiting rod 73 moves to a position right below the limiting hole 11, the elastic expansion rod 74 recovers the shape of the elastic expansion rod 74, and the limiting rod 73 is ejected out of the sliding sleeve 72;

the limiting rod 73 is contacted with the limiting hole 11, so that the inner protective sleeve 1 and the inner ball joint 2 are installed and fixed, meanwhile, the fixing rod 6 extrudes the push rod 82, the push rod 82 drives the push plate 83 to move forwards in the piston cylinder 81, so that gas in the piston cylinder 81 is extruded, the extruded gas is smoothly transmitted into the sealed air bag 9 through the hose 85, the sealed air bag 9 is expanded to be contacted with the sealing groove 5, and the joint between the inner protective sleeve 1 and the inner ball joint 2 is sealed;

when the inner protective sleeve 1 needs to be disassembled, the sealing cover 4 is firstly opened, meanwhile, the limiting rod 73 in the limiting hole 11 is ejected out of the limiting hole 11 by a hand tool, limiting fixation of the limiting rod 73 and the limiting hole 11 can be released, meanwhile, the fixing rod 6 is separated from the push rod 82, the spring 84 is reset, then gas in the sealing air bag 9 is pumped back into the piston cylinder 81, the sealing air bag 9 is separated from the sealing groove 5, and therefore the inner protective sleeve 1 can be smoothly disassembled.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a detachable drive shaft protective sheath, includes inboard protective sheath (1), its characterized in that: the back of inboard protective sheath (1) is equipped with inboard ball joint (2), two spacing holes (11) have been seted up to the side of inboard protective sheath (1), two standing grooves (10) have been seted up at the back of inboard protective sheath (1), the back of inboard protective sheath (1) is equipped with air-tight bag (9), the back of inboard protective sheath (1) is equipped with two piston assembly (8), piston assembly (8) are connected with air-tight bag (9), the front of inboard ball joint (2) is equipped with two dead lever (6), piston assembly (8) and dead lever (6) overlap joint, the front of inboard ball joint (2) is equipped with two positioning mechanism (7), positioning mechanism (7) overlap joint with standing groove (10) and spacing hole (11) respectively.

2. A removable drive shaft cover according to claim 1, wherein: the front of inboard protective sheath (1) and the back of inboard ball joint (2) all are equipped with axis body (3), sealed lid (4) have been lapped in spacing hole (11), spacing hole (11) and standing groove (10) intercommunication.

3. A removable drive shaft cover according to claim 1, wherein: the front surface of the inner side ball joint (2) is provided with a sealing groove (5), and the sealing groove (5) is in lap joint with the sealing air bag (9).

4. A removable drive shaft cover according to claim 1, wherein: piston assembly (8) include piston cylinder (81), the back at inboard protective sheath (1) is established in piston cylinder (81), sliding connection has push rod (82) in piston cylinder (81), the one end of push rod (82) is equipped with push pedal (83), push pedal (83) sliding connection is in piston cylinder (81).

5. A removable drive shaft protective sleeve according to claim 4, further comprising: the other end of push rod (82) and dead lever (6) overlap joint, the front of push pedal (83) is equipped with spring (84), the other end of spring (84) is established in piston cylinder (81), the front of piston cylinder (81) is equipped with hose (85), the other end and sealed gasbag (9) intercommunication of hose (85).

6. A removable drive shaft protective cover according to claim 1, wherein: the positioning mechanism (7) comprises a fixing block (71), the fixing block (71) is arranged on the front face of the inner side ball joint (2), the fixing block (71) is in lap joint with the placing groove (10), and a sliding sleeve (72) is arranged on the fixing block (71).

7. A removable drive shaft protective sleeve according to claim 6, further comprising: sliding connection has gag lever post (73) in sliding sleeve (72), the bottom of gag lever post (73) is equipped with elasticity telescopic link (74), establish in fixed block (71) elasticity telescopic link (74), gag lever post (73) and spacing hole (11) overlap joint.