CN212297191U - Quick-release expansion connecting device - Google Patents
Quick-release expansion connecting device Download PDFInfo
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- CN212297191U CN212297191U CN202020906296.4U CN202020906296U CN212297191U CN 212297191 U CN212297191 U CN 212297191U CN 202020906296 U CN202020906296 U CN 202020906296U CN 212297191 U CN212297191 U CN 212297191U
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Abstract
A quick-release expansion connecting device is characterized by comprising a core pin, a cam handle, a self-locking nut, an end taper sleeve, an outer taper sleeve, an impedance ring, an inner taper sleeve and a locking ring, wherein the end taper sleeve, the outer taper sleeve, the inner taper sleeve, the impedance ring and the locking ring are all sleeved on the core pin and are provided with openings, and the end taper sleeve, the outer taper sleeve, the inner taper sleeve, the impedance ring and the locking ring are matched through tapered surfaces at the end parts, so that the outer taper sleeve and the locking ring on the outer side can be extruded mutually to expand outwards, and the end taper sleeve, the inner taper sleeve and the locking ring on the inner side are inwards contracted to hold the core pin tightly, so that the connecting effect of; meanwhile, the expanded peripheral size of the locking ring is larger than that of the expanded outer taper sleeve, so that the locking ring can play a limiting role and limit axial movement, and functions of connection and axial locking are achieved. The utility model discloses a quick-release inflation connecting device, the fast operation of accessible cam handle and realize the tight connection of expanding and locking, its operation is very convenient, and connects very reliably to the convenient dismantlement.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a connecting piece, in particular to quick-release expansion connecting device.
[ background of the invention ]
With the rapid development of aerospace industry, the working environment of aerospace products is increasingly severe, common threaded connection byproducts cannot meet the use requirements of the existing aerospace products, and a threaded connection pair with high performance and adjustable high matching precision tends to be great. In the design of aerospace vehicle parts, the radial clearance of a threaded connection pair needs to be reduced, and the adjustable transition fit or interference fit of a bolt product and a base body is realized. The existing bolt connecting piece is difficult to meet the design requirement, the processing cost of the bolt is expensive, and the bolt can not be assembled and disassembled repeatedly for recycling. The radial size of the tension bolt can be adjusted, so that the lubrication and the anticorrosive coating on the surfaces of the bolt and the base body can not be influenced, the tension bolt can be assembled and disassembled for use for many times, and meanwhile, the gap in assembly caused by the abrasion of the bolt and the base body can be avoided, so that the tension bolt is widely applied to the fastening connection in the aerospace field. The existing tension bolt is complex in operation, and particularly cannot be connected and locked quickly through simple operation for a connecting piece needing to hang a beam.
[ Utility model ] content
The utility model aims at solving the above problems, and provides a quick-release expansion connecting device which is convenient to operate, reliable in connection and capable of quickly locking the axial direction.
In order to solve the problems, the utility model provides a quick-release expansion connecting device, which is characterized in that the quick-release expansion connecting device comprises a core pin, a cam handle, a self-locking nut, an end taper sleeve, an outer taper sleeve, an impedance ring, an inner taper sleeve and a locking ring, wherein the core pin is in a long shaft shape; the cam handle is rotationally connected with one end of the core pin; the self-locking nut is in threaded connection with the end part of the core pin, which is far away from the cam handle; the end taper sleeve is movably sleeved on the core pin and can deform along the radial direction; the end cone sleeve is adjacent to the cam handle; the resistance ring is movably sleeved on the core pin and can deform along the radial direction, and the end part of the resistance ring can be abutted against the end part of the self-locking nut; the outer taper sleeve is movably sleeved on the core pin and is positioned between the end taper sleeve and the impedance ring; the outer taper sleeve is matched with the end taper sleeve and the impedance ring through the tapered surface at the end part; the inner taper sleeves are movably sleeved on the core pins and are positioned between two adjacent outer taper sleeves; the inner taper sleeve is matched with the outer taper sleeve through a taper surface at the end part; the locking ring is movably sleeved on the core pin and is positioned between the impedance ring and the self-locking nut, one end of the locking ring is abutted against the self-locking nut, and the other end of the locking ring is matched with the impedance ring through a conical surface at the end part; when the cam handle rotates around the core pin and presses the end taper sleeve, the outer taper sleeve, the inner taper sleeve, the resistance ring and the locking ring are mutually pressed, so that the end taper sleeve, the inner taper sleeve and the resistance ring are inwards contracted to tightly hold the core pin, and the outer taper sleeve and the locking ring are outwards expanded.
Further, the outer circumference size of the locking ring after being extruded and expanded outwards is larger than that of the outer taper sleeve after being extruded and expanded outwards.
Further, the locking ring has a peripheral dimension that is no greater than a peripheral dimension of the outer cone when uncompressed.
Further, the outer circumference size of the locking ring after being extruded and expanded outwards is larger than the outer circumference size of the end part of the self-locking nut facing to one end of the locking ring; the inner circumference size of the locking ring after being extruded and expanded outwards is smaller than the outer circumference size of the end part of the self-locking nut facing one end of the locking ring.
Furthermore, a gasket is movably sleeved on the core pin and is arranged between the end taper sleeve and the cam handle.
Furthermore, a first opening which extends along the axial direction and penetrates through two ends of the locking ring is arranged on the locking ring, the locking ring comprises a first cylindrical part and a first taper sleeve part, and one end of the first cylindrical part is abutted against the end part of the self-locking nut; the first taper sleeve part and the first cylindrical part are integrally formed, a first taper surface is arranged on the inner wall of the end part of the first taper sleeve part, and the first taper surface is formed by inwards inclining the inner wall of the end part of the first taper sleeve part to the inner wall of the first cylindrical part.
Furthermore, a second opening which extends along the axial direction and penetrates through two ends of the impedance ring is arranged on the impedance ring, the impedance ring comprises a second cylindrical part and a second taper sleeve part, and one end of the second cylindrical part is abutted against the end part of the self-locking nut; the second taper sleeve part and the second cylindrical part are integrally formed, a second taper surface and a third taper surface are arranged on the outer wall of the second cylindrical part, the second taper surface is formed by outwards inclining the outer wall of the end part of the second cylindrical part, and the third taper surface is formed by outwards inclining the outer wall of the end part of the second taper sleeve part.
Furthermore, a third opening which extends along the axial direction and penetrates through two ends of the end taper sleeve is arranged on the end taper sleeve; one end of the end taper sleeve, which faces the cam handle, is planar, and a fourth conical surface is arranged on the outer wall of the other end of the end taper sleeve; the fourth conical surface is formed by the end part of the end cone sleeve far away from one end of the cam handle and inclining outwards.
Furthermore, the outer taper sleeve is provided with a fourth opening which extends along the axial direction and penetrates through two ends of the outer taper sleeve, the inner walls of the two ends of the outer taper sleeve are respectively provided with a fifth tapered surface, and the fifth tapered surfaces are formed by inwards inclining the inner walls of the end parts of the outer taper sleeve.
Furthermore, the inner taper sleeve is provided with a fifth opening which extends along the axial direction and runs through two ends of the inner taper sleeve, the outer walls of the two ends of the inner taper sleeve are respectively provided with a sixth taper surface, and the sixth taper surfaces are formed by outwards inclining the outer wall of the end part of the inner taper sleeve.
The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses a quick-release expansion connecting device comprises a core pin, a cam handle, an end taper sleeve, an impedance ring, an outer taper sleeve, an inner taper sleeve, a locking ring and a self-locking nut, wherein the end taper sleeve, the outer taper sleeve, the inner taper sleeve, the impedance ring and the locking ring are all sleeved on the core pin and are provided with openings, and the end taper sleeve, the outer taper sleeve, the inner taper sleeve, the impedance ring and the locking ring are all matched through the taper surface of the end part, so that the outer taper sleeve and the locking ring on the outer side can be extruded mutually to expand outwards, and the end taper sleeve, the inner taper sleeve and the locking ring on the inner side are inwards contracted to hold the core pin tightly; meanwhile, the expanded peripheral size of the locking ring is larger than that of the expanded outer taper sleeve, so that the locking ring can play a limiting role and limit axial movement, and functions of connection and axial locking are achieved. The utility model discloses a quick-release inflation connecting device, the fast operation of accessible cam handle and realize the tight connection and the locking of expanding, its operation is very convenient, and connects very reliably to convenient the dismantlement, it has very strong practicality, should widely popularize.
[ description of the drawings ]
Fig. 1 is an exploded view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a sectional view of the structure of fig. 2.
Fig. 4 is a schematic view of the connection when open.
The attached drawings are as follows: the core pin comprises a core pin 10, a connecting part 11, a first cylindrical part 12, a second cylindrical part 13, a first limit step 14, a second limit step 15, a cam handle 20, a cam part 21, an extending part 22, a rotating shaft 23, an end taper sleeve 30, a third opening 31, a fourth taper surface 32, an impedance ring 40, a second opening 41, a second cylindrical part 42, a second taper sleeve part 43, a second taper surface 431, a third taper surface 432, an outer taper sleeve 50, a fourth opening 51, a fifth taper surface 52, an inner taper sleeve 60, a fifth opening 61, a sixth taper surface 62, a locking ring 70, a first opening 71, a first cylindrical part 72, a first taper sleeve part 73, a first taper surface 731, a self-locking nut 80, a nut part 81, an end cover part 82, a gasket 90, a spring sheet 100, a through hole 1001 and an object to be connected 200.
[ detailed description ] embodiments
The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.
As shown in fig. 1 to 4, the main point of the quick release expansion joint of the present invention is that the pressing force is transmitted by the operation of the cam handle 20, so that the locking ring 70 is expanded to be larger than the size of the joint hole, thereby achieving the axial locking function. The utility model discloses a quick-release inflation connecting device, its convenient operation can lock fast, and it has very strong practicality newly.
Specifically, as shown in fig. 1 to 4, the quick-release expansion connection device of the present invention comprises a core pin 10, a cam handle 20, an end taper sleeve 30, an impedance ring 40, an outer taper sleeve 50, an inner taper sleeve 60, a locking ring 70, and a self-locking nut 80. Further, the device also comprises a gasket 90, an elastic sheet 100 and the like. The cam handle 20 is rotatably connected to one end of the core pin 10, the self-locking nut 80 is connected to one end of the core pin 10 far away from the cam handle 20, and the end taper sleeve 30 is movably sleeved on the core pin 10 and is adjacent to the cam handle 20; the impedance ring 40 is movably sleeved on the core pin 10, and the outer taper sleeve 50 is movably sleeved on the core pin 10 and is positioned between the end taper sleeve 30 and the impedance ring 40; the inner taper sleeve 60 is movably sleeved on the core pin 10 and is positioned between two adjacent outer taper sleeves 50; the locking ring 70 is movably sleeved on the core pin 10 and is positioned between the self-locking nut 80 and the impedance ring 40; the end cone sleeve 30, the outer cone sleeve 50, the inner cone sleeve 60, the impedance ring 40 and the locking ring 70 are all provided with openings, and the openings are matched through conical surfaces at the end parts, so that the end cone sleeve 30, the outer cone sleeve 50, the locking ring 70 at the outer side can be outwards expanded due to mutual extrusion, the end cone sleeve 30, the inner cone sleeve 60 and the locking ring 70 at the inner side are inwards contracted to hold the core pin 10, and the expansion connection effect can be achieved; meanwhile, the expanded peripheral dimension of the locking ring 70 is larger than that of the outer taper sleeve 50, so that the locking ring 70 can play a role in limiting and limiting axial movement, and thus, an axial locking function is achieved.
As shown in fig. 1 to 4, the core pin 10 has a long shaft shape, and one end thereof is provided with a rotary shaft hole for rotatably connecting the cam handle 20. The rotary shaft hole is provided in the radial direction of the core pin 10. The other end of the core pin 10 opposite to the rotating shaft hole is used for being in threaded connection with the self-locking nut 80.
In the present embodiment, as shown in fig. 1 to 4, the core pin 10 includes a connecting portion 11, a first cylindrical portion 12, and a second cylindrical portion 13, which are integrally formed and arranged in this order. A first limit step 14 is formed between the connecting portion 11 and the first cylindrical portion 12, and is used for limiting the gasket 90. The first cylindrical portion 12 is used to sleeve the end cone sleeve 30, the outer cone sleeve 50, the inner cone sleeve 60, the resistance ring 40 and the locking ring 70, and is cylindrical. The second cylindrical portion 13 is configured to be threadedly coupled to the self-locking nut 80, and is cylindrical. The diameter of the second cylindrical portion 13 is smaller than the diameter of the first cylindrical portion 12, such that a second limit step 15 is formed between the first cylindrical portion 12 and the second cylindrical portion 13.
As shown in fig. 1 to 4, the cam handle 20 is rotatably connected to an end of the core pin 10, and in this embodiment, is rotatably connected to the connecting portion 11 of the core pin 10 via a rotating shaft 23. The cam handle 20 includes an integrally formed cam portion 21 and an extension portion 22. The cam portion 21 is rotatably connected to the connecting portion 11, and is rotatable about a rotation shaft 23. The circumferential outer wall of the cam portion 21 is spaced from the rotary shaft 23 at different distances. The extension 22 is used for connection with a spring plate 100 for hanging beam connection.
As shown in fig. 1 to 4, the spacer 90 is movably sleeved on the core pin 10 and adjacent to the cam handle 20. Specifically, the spacer 90 is movably sleeved on the connecting portion 11 of the core pin 10 and can abut against the first limiting step 14. The spacer 90 is used to receive the force of the cam handle 20 to transmit the compressive force to the end cone 30. In this embodiment, the outer circumference of the spacer 90 is larger than the outer circumference of the first cylindrical portion 12 of the core pin 10, so that the spacer can be used to abut against the end cone 30 and perform axial position limitation.
As shown in fig. 1 to 4, the end cone 30 is movably sleeved on the core pin 10 and adjacent to the gasket 90. In this embodiment, the end cone sleeve 30 is movably sleeved on the first cylindrical portion 12. The end cone sleeve 30 is provided with a third opening 31 extending axially and penetrating through both ends thereof, and the third opening 31 makes the end cone sleeve 30 elastic and deformable in the radial direction. One end of the end cone sleeve 30 abuts against the gasket 90, and the abutting end is planar. A fourth tapered surface 32 is arranged on the outer wall of the other end of the end cone sleeve 30. The fourth tapered surface 32 is formed by the end of the end cone 30 that is distal from the end of the cam handle 20 being tapered outwardly. In other words, the end cone 30 is provided with the fourth tapered surface 32, so that the end wall of the end cone 30 far away from the cam handle 20 is thin, and the end wall of the end cone near the cam handle 20 is thick.
As shown in fig. 1 to 4, the outer taper sleeve 50 is movably sleeved on the core pin 10, and in this embodiment, is sleeved on the first cylindrical portion 12. The number of the outer taper sleeves 50 is at least two, and the specific number can be set according to the requirement. In this embodiment, the number of the outer taper sleeves 50 is 3.
As shown in fig. 1 to 4, the outer taper sleeve 50 is provided with a fourth opening 51 extending in the axial direction and penetrating through both ends thereof; the fourth opening 51 makes the outer cone 50 elastic and deformable in the radial direction, and thus expandable outward. And fifth conical surfaces 52 are respectively arranged on the inner walls of the two ends of the outer taper sleeve 50, and the fifth conical surfaces 52 are formed by inwards inclining the inner walls of the ends of the outer taper sleeve 50. In other words, the fifth tapered surface 52 is provided on the inner wall of the outer cone 50, so that the two end walls of the outer cone 50 are thin, and the middle wall is thick.
In this embodiment, the angle of inclination of the fifth tapered surface 52 is consistent with the angle of inclination of the fourth tapered surface 32, so that the end cone 30 and the outer cone 50 can be engaged by the fourth tapered surface 32 and the fifth tapered surface 52. When the end cone sleeve 30 is matched with the outer cone sleeve 50, the fourth tapered surface 32 of the end cone sleeve 30 is attached to the fifth tapered surface 52 of the outer cone sleeve 50, and the end cone sleeve 30 and the outer cone sleeve 50 can be mutually squeezed to enable the outer cone sleeve 50 to expand outwards, so that the end cone sleeve 30 contracts inwards to hold the core pin 10 tightly.
As shown in fig. 1 to 4, the inner taper sleeve 60 is movably sleeved on the core pin 10, and in this embodiment, is sleeved on the first cylindrical portion 12. At least one inner taper sleeve 60 is arranged between two adjacent outer taper sleeves 50. The specific number of the inner taper sleeves 60 can be set according to requirements, and in the embodiment, the number of the inner taper sleeves 60 is 2.
As shown in fig. 1 to 4, the inner taper sleeve 60 is provided with a fifth opening 61 extending axially through both ends thereof, and the fifth opening 61 allows the inner taper sleeve 60 to be elastically deformable in the radial direction and to be inwardly shrunk. And sixth conical surfaces 62 are respectively arranged on the outer walls of the two ends of the inner conical sleeve 60, and the sixth conical surfaces 62 are formed by outwards inclining the outer walls of the ends of the inner conical sleeve 60. In other words, the outer wall of the inner collar 60 is provided with the sixth tapered surface 62, so that the two end walls of the inner collar 60 are thin, and the middle wall is thick.
In this embodiment, the angle of inclination of the sixth tapered surface 62 is consistent with the angle of inclination of the fifth tapered surface 52, so that the inner taper sleeve 60 and the outer taper sleeve 50 can be engaged with each other through the sixth tapered surface 62 and the fifth tapered surface 52. When the inner taper sleeve 60 is matched with the outer taper sleeve 50, the sixth tapered surface 62 of the inner taper sleeve 60 is attached to the fifth tapered surface 52 of the outer taper sleeve 50, the inner taper sleeve 60 and the outer taper sleeve 50 can be pressed against each other to expand the outer taper sleeve 50 outwards, and the inner taper sleeve 60 contracts inwards to hold the core pin 10 tightly.
As shown in fig. 1 to 4, the resistance ring 40 is movably sleeved on the core pin 10 and is adjacent to the outer taper sleeve 50 at the edge position, which is located at the other end of the outer taper sleeve 50 opposite to the inner taper sleeve 60. In this embodiment, the impedance ring 40 is sleeved on the first cylindrical portion 12. The impedance ring 40 is provided with a second opening 41 extending in the axial direction and penetrating both ends thereof. The second opening 41 allows the resistance ring 40 to be elastically deformable in the radial direction and thus to be inwardly contracted.
The impedance ring 40 includes a second cylindrical portion 42 and a second taper portion 43 which are integrally formed. The second opening 41 extends from the end of the second cylindrical portion 42 to the end of the second taper portion 43.
The second cylindrical portion 42 is cylindrical, and one end thereof abuts against an end portion of the self-lock nut 80. The outer wall of the second sleeve portion 43 is provided with a second tapered surface 431 and a third tapered surface 432. The second tapered surface 431 is located between the third tapered surface 432 and the second cylindrical portion 42. The second tapered surface 431 is formed by inclining outward from the outer wall of the end portion of the second cylindrical portion 42, and the third tapered surface 432 is formed by inclining outward from the outer wall of the end portion of the second collar portion 43. In other words, the second tapered surface 431 and the third tapered surface 432 are provided on the outer wall of the second taper sleeve portion 43, so that the two end walls of the taper sleeve portion are thin and the wall thickness is middle.
In this embodiment, the third tapered surface 432 is inclined at an angle corresponding to the angle of the fifth tapered surface 52, so that the impedance ring 40 and the outer cone 50 can be engaged by the third tapered surface 432 and the fifth tapered surface 52. When the resistance ring 40 is mated with the outer cone 50, the third tapered surface 432 of the resistance ring 40 is abutted with the fifth tapered surface 52 of the outer cone 50, and the resistance ring 40 and the outer cone 50 can be pressed against each other to expand the outer cone 50 outwards, and the resistance ring 40 contracts inwards to clasp the core pin 10.
The locking ring 70 is movably sleeved on the core pin 10, in this embodiment, the first cylindrical portion 12. The locking ring 70 is provided with a first opening 71 extending axially and penetrating through both ends thereof, and the first opening 71 makes the locking ring 70 elastic and deformable in the radial direction, thereby expanding outward.
The lock ring 70 includes a first cylindrical portion 72 and a first tapered sleeve portion 73 that are integrally formed. The first opening 71 extends from an end of the first cylindrical portion 72 to an end of the first taper portion 73.
The first cylindrical portion 72 is cylindrical and is sleeved outside the second cylindrical portion 42. The end of the first cylindrical portion 72 abuts against the self-lock nut 80. A first tapered surface 731 is provided on an inner wall of the first taper sleeve portion 73, and the first tapered surface 731 is formed by inclining an inner wall of an end portion of the first taper sleeve portion 73 inward to an inner wall of the first cylindrical portion 72. In other words, since the first tapered surface 731 is provided on the inner wall of the first taper sleeve portion 73, the end portion of the first taper sleeve portion 73 away from the first cylindrical portion 12 is thin, and the other portions are thick.
In this embodiment, the inclination angle of the first tapered surface 731 is consistent with the inclination angle of the second tapered surface 431, so that the locking ring 70 and the impedance ring 40 can be matched by the first tapered surface 731 and the second tapered surface 431. When the locking ring 70 is mated with the resistance ring 40, the second tapered surface 431 of the resistance ring 40 abuts the first tapered surface 731 of the locking ring 70, the resistance ring 40 and the locking ring 70 can be pressed against each other to expand the locking ring 70 outward, and the resistance ring 40 contracts inward to grip the core pin 10.
The self-locking nut 80 is screwed to the second cylindrical portion 13 of the core pin 10, and includes a nut portion 81 and an end cap portion 82 that are integrally formed. The nut portion 81 is used to connect the elastic sheet 100. In this embodiment, the nut portion 81 is shaped like an outer hexagonal nut. The end cap portion 82 is adapted to abut the locking ring 70 and the locking ring 70. The outer peripheral dimension of the end cap portion 82 is larger than the outer peripheral dimension of the nut portion 81 and also larger than the outer peripheral dimension of the first cylindrical portion 12.
In the uncompressed natural state, the outer peripheral dimensions of the end cap portion 82 are no greater than the outer peripheral dimensions of the inner cone sleeve 60, outer cone sleeve 50, end cone sleeve 30, locking ring 70, and resistance ring 40 to facilitate insertion into the connection bore. In this embodiment, in the non-compressed natural state, the outer dimensions of the end cap portion 82, the inner taper sleeve 60, the outer taper sleeve 50, the end taper sleeve 30, the locking ring 70 and the impedance ring 40 are the same, so that the whole structure after the matching is cylindrical.
The second and third tapered surfaces 431, 432 are angled differently, so that the locking ring 70 and the outer cone 50 expand outwardly to a different degree when pressed against each other. In this embodiment, the second tapered surface 431 and the third tapered surface 432 are angularly disposed such that the outer circumferential dimension of the compressed locking ring 70 after outward expansion is greater than the outer circumferential dimension of the outer cone 50 after outward expansion.
One end of the elastic sheet 100 is connected with the extension part 22 of the cam handle 20, and the other end thereof is provided with a through hole 1001 which can be sleeved on the self-locking nut 80, so as to hang the beam. The material of the spring 100 can be selected according to the requirement, such as a metal material.
In addition, in order to prevent the elastic sheet 100 from slipping off the self-locking nut 80, a pin hole may be provided at an end of the core pin 10, which may be provided with a plug pin to limit the sliding of the elastic sheet 100.
By this, just formed the utility model discloses a quick-release inflation connecting device: one end of the core pin 10 is rotatably connected with a cam handle 20, and the other end is in threaded connection with a self-locking nut 80; the gasket 90, the end taper sleeve 30, the outer taper sleeve 50, the inner taper sleeve 60, the impedance ring 40 and the locking ring 70 are movably sleeved on the core pin 10 and are arranged between the cam handle 20 and the self-locking nut 80; the end cone 30, the outer cone 50, the inner cone 60, the resistance ring 40 and the locking ring 70 are engaged with each other through the tapered surfaces of the end portions, and thus can be pressed to be inwardly retracted or outwardly expanded.
The quick-release expansion connecting device of the utility model is used for being inserted into the connecting hole of the object 200 to be connected; when in use, the quick-release expansion connecting device is opened firstly, so that the elastic sheet 100 is not hung on the self-locking nut 80; then, one end of the self-locking nut 80 faces the connecting hole of the object 200 to be connected, and the quick-release expansion connecting device is inserted into the connecting hole; then the cam handle 20 is rotated to hang the spring plate 100 on the self-locking nut 80 again for closing; in the process, the cam handle 20 presses the gasket 90 to enable the end cone sleeve 30, the outer cone sleeve 50, the inner cone sleeve 60, the resistance ring 40 and the locking ring 70 to be mutually pressed, so that the end cone sleeve 30, the inner cone sleeve 60 and the resistance ring 40 are inwards contracted to clamp the core pin 10, the outer cone sleeve 50 is outwards expanded to form interference fit with the connecting hole of the object to be connected 200, and the object to be connected 200 is expanded; meanwhile, the locking ring 70 expands outwards, and the expanded peripheral size of the locking ring is larger than that of the expanded outer taper sleeve 50, namely, the expanded peripheral size of the outer taper sleeve is larger than that of the connecting hole, so that the locking ring 70 is positioned outside the connecting hole to play a limiting role, the object 200 to be connected is prevented from sliding out of one end of the self-locking nut 80, an axial locking effect is achieved, and the connection safety is guaranteed.
When the quick-release expansion connecting device needs to be detached, the elastic sheet 100 is taken down from the self-locking nut 80, and the cam handle 20 is rotated, so that the quick-release expansion connecting device can be pulled out from the connecting hole of the object 200 to be connected.
The utility model discloses a quick-release inflation connecting device can realize through simple cam handle 20 operation that the locking is connected and dismantlement, and its security is strong, easy operation, and it has very strong utility new, should widely popularize.
While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the invention.
Claims (10)
1. A quick release expansion joint, comprising:
a core pin (10) having a long axis shape;
a cam handle (20) rotatably connected to one end of the core pin (10);
the self-locking nut (80) is in threaded connection with one end part of the core pin (10) far away from the cam handle (20);
the end taper sleeve (30) is movably sleeved on the core pin (10) and can deform along the radial direction; the end cone sleeve (30) is adjacent to the cam handle (20);
the resistance ring (40) is movably sleeved on the core pin (10) and can deform along the radial direction, and the end part of the resistance ring (40) can be abutted against the end part of the self-locking nut (80);
the outer taper sleeve (50) is movably sleeved on the core pin (10) and is positioned between the end taper sleeve (30) and the impedance ring (40); the outer taper sleeve (50) is matched with the end taper sleeve (30) and the impedance ring (40) through tapered surfaces at the end parts;
the inner taper sleeve (60) is movably sleeved on the core pin (10) and is positioned between two adjacent outer taper sleeves (50); the inner taper sleeve (60) is matched with the outer taper sleeve (50) through a taper surface at the end part;
the locking ring (70) is movably sleeved on the core pin (10) and is positioned between the impedance ring (40) and the self-locking nut (80), one end of the locking ring (70) is abutted against the self-locking nut (80), and the other end of the locking ring (70) is matched with the impedance ring (40) through a conical surface at the end part;
when the cam handle (20) rotates around the core pin (10) and presses the end taper sleeve (30), the outer taper sleeve (50), the inner taper sleeve (60), the resistance ring (40) and the locking ring (70) are mutually pressed, so that the end taper sleeve (30), the inner taper sleeve (60) and the resistance ring (40) are inwards contracted to hold the core pin (10), and the outer taper sleeve (50) and the locking ring (70) are outwards expanded.
2. The quick release expansion joint as recited in claim 1, characterized in that the locking ring (70) has a larger outer circumferential dimension after being squeezed and expanded outward than the outer taper sleeve (50) after being squeezed and expanded outward.
3. The quick release expansion joint as recited in claim 1, characterized in that the locking ring (70) has a peripheral dimension that is no greater than the peripheral dimension of the outer cone (50) when uncompressed.
4. The quick release expansion joint as recited in claim 1,
the outer circumference size of the locking ring (70) after being extruded and expanded outwards is larger than the outer circumference size of the end part of the self-locking nut (80) facing one end of the locking ring (70);
the inner circumference size of the locking ring (70) after being extruded and expanded outwards is smaller than the outer circumference size of the end part of the self-locking nut (80) facing one end of the locking ring (70).
5. The quick release expansion joint as recited in claim 1,
a gasket (90) is movably sleeved on the core pin (10), and the gasket (90) is arranged between the end taper sleeve (30) and the cam handle (20).
6. A quick release expansion joint according to claim 1, wherein a first opening (71) is provided in the locking ring (70) extending axially and through both ends thereof, the locking ring (70) comprising:
a first cylindrical portion (72) having one end abutting against an end of the self-locking nut (80);
and a first taper sleeve part (73) which is integrally formed with the first cylindrical part (72), wherein a first taper surface (731) is arranged on the inner wall of the end part of the first taper sleeve part, and the first taper surface (731) is formed by inwards inclining the inner wall of the end part of the first taper sleeve part (73) to the inner wall of the first cylindrical part (72).
7. The quick release expansion joint as recited in claim 1, wherein a second opening (41) is provided in said resistance ring (40) extending axially through both ends thereof, said resistance ring (40) comprising:
a second cylindrical portion (42) having one end abutting against an end of the self-locking nut (80);
and a second tapered surface (431) and a third tapered surface (432) formed on the outer wall of the second cylindrical portion (42), wherein the second tapered surface (431) is formed by inclining outward from the outer wall of the end portion of the second cylindrical portion (42), and the third tapered surface (432) is formed by inclining outward from the outer wall of the end portion of the second tapered portion (43).
8. A quick release expansion joint as claimed in claim 1, wherein said end cone (30) is provided with a third opening (31) extending axially through both ends thereof; one end of the end taper sleeve (30) facing the cam handle (20) is planar, and a fourth tapered surface (32) is arranged on the outer wall of the other end of the end taper sleeve (30); the fourth conical surface (32) is formed by the end of the end cone sleeve (30) far away from the end of the cam handle (20) and inclining outwards.
9. The quick release expansion joint as recited in claim 1, wherein said outer cone (50) is provided with a fourth opening (51) extending axially through both ends thereof, and fifth tapered surfaces (52) are respectively provided on both end inner walls of said outer cone (50), said fifth tapered surfaces (52) being formed by inward inclination of the end inner walls of said outer cone (50).
10. The quick release expansion joint according to claim 1, wherein the inner collar (60) is provided with a fifth opening (61) extending axially through both ends thereof, and the outer walls of both ends of the inner collar (60) are respectively provided with a sixth tapered surface (62), and the sixth tapered surfaces (62) are formed by inclining the outer walls of the ends of the inner collar (60) outward.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020906296.4U CN212297191U (en) | 2020-05-26 | 2020-05-26 | Quick-release expansion connecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020906296.4U CN212297191U (en) | 2020-05-26 | 2020-05-26 | Quick-release expansion connecting device |
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| Publication Number | Publication Date |
|---|---|
| CN212297191U true CN212297191U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594521A (en) * | 2020-05-26 | 2020-08-28 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
| CN115030946A (en) * | 2022-07-07 | 2022-09-09 | 深圳亚太航空技术股份有限公司 | Bolt type quick-release expansion device |
-
2020
- 2020-05-26 CN CN202020906296.4U patent/CN212297191U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594521A (en) * | 2020-05-26 | 2020-08-28 | 深圳亚太航空技术有限公司 | Quick-release expansion connecting device |
| CN115030946A (en) * | 2022-07-07 | 2022-09-09 | 深圳亚太航空技术股份有限公司 | Bolt type quick-release expansion device |
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Address after: Building 101, Building B, Building C, Building D, Building E, Building F, No. 22, Fengqi Road, Fuchengao Community, Longgang District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Asia Pacific Aviation Technology Co.,Ltd. Address before: No.68, Jiahu Road, fuchengao community, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ASIA-PACIFIC AVIATION TECHNOLOGY Co.,Ltd. |