CN113883145A - Automatic eccentric connection structure of adjustable - Google Patents

Abstract

The invention relates to an automatic eccentric adjustable connecting structure, which comprises a locking part and a bolt part which are respectively arranged on two components; an adjusting part is arranged between the locking part and the bolt part; the locking part comprises a locking barrel which is opened towards the plug pin part, a supporting sleeve which is arranged at the opened end of the locking barrel in a threaded manner, a floating sleeve which is movably arranged on the supporting sleeve and a locking mechanism which is arranged on the floating sleeve; the floating sleeve can move along the radial direction of the lock cylinder; the bolt part comprises a bolt cylinder and a bolt head; the pin barrel is open to the locking portion; the bolt head comprises a threaded end in threaded connection with the open end of the bolt barrel and a bolt end fixed on the threaded end; the periphery of the upper part of the bolt end is provided with an annular groove; the pin end penetrates out of the supporting sleeve and the floating sleeve upwards, and the annular groove is matched and fixed with the locking mechanism; the adjusting part is sleeved on the bolt end and can control the depth of the bolt head inserted into the lock cylinder; the other end of the lock cylinder and the other end of the pin cylinder are respectively provided with a connecting piece.

Description

Automatic eccentric connection structure of adjustable

Technical Field

The invention relates to an automatic eccentric adjustable connecting structure, and belongs to the technical field of pin lock connecting structures.

Background

In recent years, the plug-in structure is widely applied to component connection in various fields, has the advantages of no need of welding and curing agent, capability of automatically adapting to the eccentricity of a connecting piece and convenience in implementation, and is suitable for connection of various assembled structures.

The patent of the Chinese utility model with the publication number of CN212455135U discloses an adjustable eccentric pin lock connecting structure, which comprises a locking part and a plug pin part which are respectively arranged on two components and are not coaxial; an eccentric structure is further arranged between the locking part and the plug pin part; the locking part comprises a lock cylinder which is opened towards the bolt part and a locking mechanism which is arranged in the lock cylinder; the other end of the lock cylinder is sleeved with a connecting piece; the plug part comprises a plug barrel which is opened towards the locking part; the other end of the pin cylinder is sleeved with another connecting piece; the eccentric structure comprises a vertical hollow sleeve and a stepped shaft-shaped bolt with a small upper part and a large lower part; the periphery of the sleeve is coaxially sleeved in the lock cylinder; the large end of the plug pin is coaxially sleeved in the plug pin cylinder, and the small end of the plug pin can be upwards inserted into the sleeve; the eccentric structure is adjusted, the small end of the bolt coincides with the axis of the inner circumference of the sleeve, and the small end of the bolt can upwards penetrate through the sleeve to be inserted into the lock cylinder and is matched and locked with the locking mechanism. According to the connecting structure of the adjustable eccentric pin lock, the eccentric structure is arranged between the plug pin part and the locking part, so that the plug pin part and the locking part can be normally plugged by adjusting the eccentric structure even under the condition that the axes are not coincident.

In the above-mentioned patent, though adopted eccentric structure, made things convenient for going on of grafting work to a certain extent, when the in-service use, need closely cooperate because of the eccentric sleeve in bolt head and the lock section of thick bamboo for can not leave too big clearance between bolt head periphery and the eccentric telescopic eccentric orfice. If one wants to make the bolt head be able to be inserted into the eccentric hole, the eccentricity of the eccentric sleeve must be adjusted precisely. The locking part and the plug pin part are positioned on two different components, and no enough space is provided between the two components for workers to confirm the matching condition of the plug pin head and the eccentric hole. Therefore, after the eccentric sleeve needs to be adjusted repeatedly, the bolt head and the eccentric hole can be well matched. This approach is therefore not simple enough.

Disclosure of Invention

In order to overcome the problems, the invention provides an automatic eccentric-adjustable connecting structure, which adopts a floating sleeve, so that the floating sleeve moves along the radial direction of a lock cylinder under the guiding action of a guide head in the process of inserting a plug pin head into the lock cylinder, automatically corrects the deviation and corrects along with the continuous penetration of the plug pin head into the lock cylinder, and is matched with a locking mechanism to complete locking, thereby realizing the fixation of the plug pin part and a locking part.

The technical scheme of the invention is as follows:

an automatic eccentric adjustable connecting structure comprises a locking part and a bolt part which are respectively arranged on two components; an adjusting part is arranged between the locking part and the plug pin part; the locking part comprises a lock cylinder which is opened towards the bolt part, a support sleeve which is arranged at the opened end of the lock cylinder in a threaded manner, a floating sleeve which is movably arranged on the support sleeve and a locking mechanism which is arranged on the floating sleeve; the floating sleeve can move along the radial direction of the lock cylinder; the bolt part comprises a bolt cylinder and a bolt head; the pin barrel is open to the lock; the bolt head comprises a threaded end in threaded connection with the open end of the bolt barrel and a bolt end fixed on the threaded end; an annular groove is formed in the periphery of the upper part of the bolt end; after the bolt end penetrates out of the supporting sleeve and the floating sleeve upwards, the annular groove is matched and fixed with the locking mechanism; the adjusting part is sleeved on the bolt end and can control the depth of the bolt head inserted into the lock cylinder; and the other end of the lock cylinder and the other end of the pin cylinder are respectively provided with a connecting piece.

Further, the locking mechanism comprises a pressing frame and a locking piece; the inner periphery of the locking piece is sleeved on the outer periphery of the annular groove, and the lower part of the locking piece is accommodated at the upper part of the inner periphery of the floating sleeve; the pressing frame comprises a pressing ring, a supporting pipe and a retainer ring; the compression ring is horizontally arranged and sleeved above the outer side of the annular groove; the pressing ring is pressed on the locking piece; the supporting tube is vertically hollow and is fixed at the upper end of the inner side of the compression ring, and the supporting tube is positioned at the periphery of the bolt end; the check ring is vertically hollow and is fixed at the lower end of the outer side of the compression ring, and the check ring is positioned on the outer side of the locking piece; the retainer ring is positioned above the floating sleeve.

Further, the locking piece comprises a rubber ring and a plurality of arc-shaped ring blocks; the inner periphery of the rubber ring is sleeved on the outer periphery of the annular groove, and the lower part of the rubber ring is accommodated at the upper part of the inner periphery of the floating sleeve; the rubber ring is of a hollow annular structure; the arc-shaped ring blocks can surround to form a complete ring-shaped structure; the annular structure formed by the arc-shaped ring blocks is accommodated inside the annular structure of the rubber ring.

Further, the bolt end comprises an inserting rod, the annular groove and a guide head; the inserted rod is fixed at the upper end of the threaded end; the annular groove is annularly formed in the outer peripheral wall of the top end of the inserted rod; the guide head is fixed at the upper end of the annular groove; the guide head is of a circular truncated cone-shaped structure with a small upper part and a large lower part.

Furthermore, the device also comprises an eccentric sleeve; the periphery of the eccentric sleeve is in threaded connection with the inner side of the open end of the pin barrel; the threaded end of the bolt head is in threaded connection with the inner periphery of the eccentric sleeve; the threaded end of the bolt head and the bolt barrel are eccentrically arranged.

Furthermore, the device also comprises an elastic piece; the elastic piece is sleeved on the periphery of the supporting tube; the upper end of the elastic piece is attached to the lower portion of the end face of the inner side of the lock cylinder, and the lower end of the elastic piece is attached to the upper end of the compression ring.

Further, the device also comprises a gasket; the gasket is fixed below the end face of the inner side of the lock cylinder; the upper end of the elastic piece is attached to the lower end of the gasket.

Further, the adjusting part comprises an adjusting nut and a pin key; the middle part of the adjusting nut is provided with a vertical hollow through hole for the bolt head to pass through; a vertical key groove communicated with the through hole is formed in the inner side of the adjusting nut; one side of the pin key is clamped and fixed in the key groove; a vertical sliding groove is formed in the outer peripheral wall of the plug pin end along the axial direction; the upper end of the sliding chute is communicated with the annular groove; the through hole of the adjusting nut is sleeved outside the bolt end; the other side of the pin key can slide in the sliding groove.

Further, the elastic member is a rubber tube having flexibility.

The invention has the following beneficial effects:

1. the connecting structure with the automatic eccentric adjustment function adopts the floating sleeve, so that in the process of inserting the plug pin head into the lock cylinder, the floating sleeve moves along the radial direction of the lock cylinder under the guiding action of the guiding head, automatically corrects the deviation and corrects along with the fact that the plug pin head continuously goes deep into the lock cylinder, and is matched with the locking mechanism to complete locking, and the plug pin part and the locking part are fixed.

2. The floating sleeve can move along the radial direction of the lock cylinder, the fixing support is provided with a push bearing groove matched with the guide head of the plug pin head, when the plug pin head enters the lock cylinder, the guide head is firstly contacted with the push bearing groove of the fixing support, and then the round platform inclined surface of the guide head is matched with the push bearing groove, so that the floating sleeve and the fixing support are automatically guided, automatic deviation correction is realized, and finally, the plugging work is completed.

3. Because the bolt end has a certain space for transverse movement in the support sleeve, and the floating sleeve can also move along the radial direction of the lock cylinder, the bolt part can also move and finely adjust along the radial direction of the locking part even after the bolt part is inserted with the locking part, so that the rest bolt parts and the locking part on the two components can also be smoothly inserted. And finally screwing the adjusting part after all the plug pin parts are plugged with the locking part, and finishing the final assembly work of the two components.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a partially enlarged view of a portion a of fig. 2.

Fig. 4 is a schematic view of the internal structure of the locking portion of the present invention.

Fig. 5 is a partial enlarged view of fig. 4 at B.

Fig. 6 is a schematic view of the internal structure of the locking part before plugging.

Fig. 7 is a partial enlarged view of fig. 6 at C.

Fig. 8 is a partial cross-sectional view of a stationary bracket.

Fig. 9 is a schematic structural view of the fixing bracket separated into the base and the pressing frame.

Fig. 10 is a schematic structural view of the locking member.

Fig. 11 is a schematic view of the internal structure of the plug-in front plug pin part.

Fig. 12 is a partial enlarged view of fig. 11 at D.

Fig. 13 is a schematic structural view of the bolt head jacking the fixing bracket and the base and the pressing frame about to be separated.

Fig. 14 is a partial enlarged view at E of fig. 13.

FIG. 15 is a schematic view of the structure of the base separated from the pressing frame and the locking member being pushed open by the lifting of the base.

Fig. 16 is a partial enlarged view of fig. 15 at F.

FIG. 17 is a schematic diagram of the principle of deviation correction according to the present invention.

Fig. 18 is a partial enlarged view at G of fig. 17.

Fig. 19 is a sectional view of the plug portion using the eccentric sleeve.

Fig. 20 is a schematic view of the internal structure of the plug portion when an eccentric sleeve is used.

The reference numbers in the figures denote:

1. a locking portion; 11. a lock cylinder; 12. a support sleeve; 13. a floating sleeve; 14. an elastic member; 15. a gasket; 16. a chute; 17. a bayonet; 2. a plug pin portion; 21. a pin barrel; 22. an eccentric sleeve; 3. an adjustment section; 31. adjusting the nut; 32. a keyway; 33. a pin key; 4. a plug pin head; 41. a threaded end; 42. a plug end; 43. inserting a rod; 44. an annular trench; 45. a guide head; 46. a chute; 5. fixing a bracket; 51. a base; 52. a thrust groove; 53. an annular groove; 54. a rib; 55. pressing a frame; 56. pressing a ring; 57. supporting a tube; 58. a retainer ring; 59. a convex edge; 6. a locking member; 61. a rubber ring; 62. an arc-shaped ring block; 7. a connecting member.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

Referring to fig. 1 to 20, the locking part comprises a locking part 1 and a bolt part 2 which are respectively arranged on two components; an adjusting part 3 is arranged between the locking part 1 and the plug pin part 2; the locking part 1 comprises a lock cylinder 11 which is opened towards the plug pin part 2, a support sleeve 12 which is arranged at the opened end of the lock cylinder 11 in a threaded manner, a floating sleeve 13 which is movably arranged on the support sleeve 12 and a locking mechanism which is arranged on the floating sleeve 13; the floating sleeve 13 can move along the radial direction of the lock cylinder 11; the plug pin part 2 comprises a pin cylinder 21 and a plug pin head 4; the pin barrel 21 is open to the lock portion 1; the bolt head 4 comprises a threaded end 41 in threaded connection with the open end of the bolt barrel 21 and a bolt end 42 fixed on the threaded end 41; the periphery of the upper part of the bolt end 42 is provided with an annular groove 44; after the pin end 42 penetrates out of the support sleeve 12 and the floating sleeve 13, the annular groove 44 is matched and fixed with the locking mechanism; the adjusting part 3 is sleeved on the pin end 42 and can control the depth of the pin head 4 inserted into the lock cylinder 11; and the other end of the lock cylinder 11 and the other end of the pin cylinder 21 are respectively provided with a connecting piece 7.

According to the above description, the connecting structure with automatically adjustable eccentricity mainly comprises a locking part 1, a plug pin part 2 and an adjusting part 3. The locking portion 1 includes a lock cylinder 11, a support sleeve 12, a floating sleeve 13, a latch mechanism, and a connecting member 7. The lock cylinder 11 is arranged towards one end of the plug pin part 2 in an open mode; the support sleeve 12 is threaded into the open end of the lock cylinder 11; the floating sleeve 13 is movably arranged on the supporting sleeve 12 and can move along the radial direction of the lock cylinder 11; the latch mechanism is provided on the floating sleeve 13 and is capable of following the floating sleeve 13 when the floating sleeve 13 moves. The plug pin part 2 comprises a pin barrel 21, a plug pin head 4 and a further connecting piece 7. The pin barrel 21 is open toward one end of the lock 1. The pin head 4 comprises a threaded end 41, a pin end 42 and an annular groove 44; the threaded end 41 is threadedly coupled with the open end of the pin barrel 21; the bolt end 42 is fixed on the threaded end 41 and can be inserted into the lock cylinder 11; an annular groove 44 is formed in the outer peripheral wall of the upper portion of the latch end 42 and cooperates with the locking mechanism to lock the latch end 42 in the lock cylinder 11. After the pin end 42 sequentially penetrates through the support sleeve 12 and the floating sleeve 13, the annular groove 44 can be matched and fixed with the locking mechanism. The adjusting part 3 is sleeved on the pin end 42 and can control the depth of the pin end 42 inserted into the lock cylinder 11. The connecting member 7 is used to fix the locking portion 1 and the plug pin portion 2 to the members, respectively.

In particular, the outer diameter of the floating sleeve 13 is smaller than the inner diameter of the lock cylinder 11, so that the floating sleeve 13 can move radially along the lock cylinder 11 before the latch end 42 is locked by the locking mechanism; the outer diameter of pin end 42 should be slightly smaller than the inner diameter of floating sleeve 13 to ensure that pin end 42 can pass through the inner circumference of floating sleeve 13.

In particular, the connecting member 7 is a steel bar or a steel bar. Meanwhile, the connecting piece 7 is matched with the locking part 1 or the plug pin part 2 in a mode of arranging a pier head or in a threaded connection mode.

In particular, threaded end 41 is disposed coaxially with pin end 42.

Further, the locking mechanism comprises a pressing frame 55 and a locking piece 6; the inner periphery of the locking piece 6 is sleeved on the outer periphery of the annular groove 44, and the lower part of the locking piece 6 is accommodated at the upper part of the inner periphery of the floating sleeve 13; the pressing frame 55 comprises a pressing ring 56, a supporting pipe 57 and a retainer ring 58; the compression ring 56 is horizontally arranged and sleeved above the outer side of the annular groove 44; the press ring 56 is pressed on the locking piece 6; the supporting tube 57 is vertically hollow and is fixed at the upper end of the inner side of the compression ring 56, and the supporting tube 57 is positioned at the periphery of the bolt end 42; the retainer ring 58 is vertically hollow and is fixed at the lower end of the outer side of the pressing ring 56, and the retainer ring 58 is positioned on the outer side of the locking piece 6; the retainer ring 58 is located above the floating sleeve 13.

According to the above description, the latch mechanism includes the pressing frame 55 and the locking member 6. The pressing frame 55 includes a pressing ring 56, a support pipe 57, and a retainer ring 58. The pressing ring 56 is sleeved above the outer side of the annular groove 44 and pressed to the locking piece 6; a support pipe 57 is fixed at the upper end of the inner side of the compression ring 56, and the support pipe 57 is positioned at the periphery of the upper part of the bolt end 42; a retainer ring 58 is fixed to the outer lower end of the pressure ring 56, and the retainer ring 58 is located outside the locking member 6 above the floating sleeve 13. The locking piece 6 is sleeved on the annular groove 44, and then the annular groove 44, the upper part of the inner periphery of the floating sleeve 13, the inner periphery of the retainer ring 58 and the lower end surface of the pressing ring 56 surround to form an accommodating space for fixing the locking piece 6. After the latch end 42 is inserted into the lock cylinder 11 and the locking member 6 enters the annular groove 44, the latch end 42 is locked in the lock cylinder 11, and the latch part 2 and the locking part 1 are fixed.

In particular, the main structure of the latch mechanism is the fixing bracket 5 and the locking member 6 before installation. The fixed support 5 sequentially comprises a base 51 and a pressing frame 55 which are coaxially arranged from bottom to top. The base 51 is cylindrical, and a thrust groove 52 is formed in the lower end surface. An annular groove 53 is annularly formed on the periphery of the upper end of the base 51. A plurality of ribs 54 are fixed on the outer side of the upper end of the annular groove 53 at even intervals along the circumferential direction, and the other ends of the ribs 54 are fixed with the inner periphery of the pressing ring 56. The annular groove 53 of the fixing bracket 5 is a member for preliminarily fixing the locking piece 6 when the latch 1 is installed. When the floating sleeve is installed, the outer periphery of the base 51 is sleeved on the inner periphery of the floating sleeve 13. When the floating sleeve is used, after the bolt end 42 of the bolt head 4 enters the lock cylinder 11 and the top of the bolt end 42 is pressed against the pushing groove 52, the pushing groove 52 is matched with the top of the bolt end 42 to realize deviation correction, so that the floating sleeve 13 which can freely move along the radial direction of the lock cylinder 11 originally can automatically return to be aligned. Then, the thrust bearing groove 52 continues to be pushed by the pin end 42, after the top of the support tube 57 of the pressing frame 55 abuts against the inner end face of the lock cylinder 11, the base 51 rises and the rib 54 is broken by force, and the fixing bracket 5 is separated into the base 51 and the pressing frame 55. The pressure frame 55 provides a press-fit fixing for the locking member 6, while the base 51 is located in the support tube 57.

In particular, a plurality of convex edges 59 are uniformly arranged on the outer periphery of the base 51, so that the base 51 can be more conveniently clamped on the inner periphery of the floating sleeve 13 when the fixing bracket 5 is installed.

In particular, the ribs 54 are much weaker than the base 51 and the pressing frame 55, so as to facilitate the normal separation of the base 51 and the pressing frame 55.

In particular, the distance between the upper end of the support tube 57 and the inner end surface of the lock cylinder 11 is slightly smaller than the maximum upward stroke of the locking member 6 after being pushed by the base 51. Thus, when the locking member 6 is pushed by the base 51 to jack up the pressing frame 55, the support tube 57 is pressed at this time, and after the rib 54 of the fixing bracket 5 is broken, the base 51 is separated from the pressing frame 55, and the support tube 57, which is originally pressed, releases the elastic force, so that the locking member 6 can be pressed down into the annular groove 44 of the plug end 42 by the pressing ring 56.

In particular, the inner diameter of the collar 58 should be slightly smaller than the outer diameter of the base 51 plus twice the cross-sectional length of the locking member 6. The locking member 6 is pushed by the base 51 and after the rib 54 breaks, the base 51 will be pushed into the support tube 57. During the raising of the base 51, the locking member 6 will be temporarily fitted over the base 51, and the retainer ring 58 is pressed. After the seat 51 has passed and the locking member 6 has been separated from the seat 51, the retaining ring 58, which was originally compressed, releases the spring force and can press the locking member 6 inwards into the annular groove 44 of the latch end 42.

In particular, the inner diameter of the locking element 6 is slightly smaller than the inner diameter of the bottom of the annular groove 44, ensuring that the locking element 6 can be fitted over the annular groove 44.

In particular, the inner diameter of the press ring 56 and the inner diameter of the support tube 57 are both larger than the outer diameter of the plug end 42 and the outer diameter of the base 51, so that the plug end 42 and the base 51 can normally pass through.

In particular, the floating sleeve 13 is provided with a tapered slot 16 at the upper part of the inner circumference thereof to facilitate better fixing of the locking member 6.

In particular, the angle α of the angled slot 16 with respect to the upper end of the annular groove 44 should be less than 180 ° and the angled slot 16 is spaced further from the side of the annular groove 44 closer to the axis of the pin end 42 than the side thereof farther from the axis of the pin end 42. Thus, after the plug pin portion 2 is locked with the lock portion 1, the inclined groove 16 and the annular groove 44 can engage with the locking member 6, and the locking member 6 can be prevented from coming out of the annular groove 44. Preferably, α is 15 °.

In particular, the outer diameter of the latch end 42 is smaller (even much smaller) than the inner diameter of the support sleeve 12, so that the latch end 42 has some space for lateral movement within the support sleeve 12. Therefore, when the plug pin part 2 on the two components is matched with the locking part 1, even if the plug pin head 4 of the plug pin part 2 is not coaxial with the supporting sleeve 12 of the locking part 1, the correction can be realized through the guiding match between the top of the plug pin end 42 and the bearing and pushing groove 52 of the fixed support 5 as long as the plug pin end 42 can normally enter the supporting sleeve 12 after adjustment, so that the floating sleeve 13 which can freely move along the radial direction of the lock cylinder 11 originally can automatically return to be aligned, and the plugging and matching between the plug pin part 2 and the locking part 1 are subsequently completed. In addition, after one group of plug pin parts 2 on the two components are inserted into the locking part 1, if the rest plug pin parts 2 and the locking part 1 on the components cannot be installed due to the misalignment of the plug pin head 4 and the support sleeve 12, the plug pin end 42 has a certain space for transverse movement in the support sleeve 12, and the floating sleeve 13 can also move along the radial direction of the lock cylinder 11, so that even after the plug pin parts 2 are inserted into the locking part 1, the plug pin parts 2 can also move along the radial direction of the locking part 1 for fine adjustment, and the rest plug pin parts 2 and the locking part 1 on the components can also be inserted smoothly. And after all the plug pin parts 2 are plugged with the locking part 1, screwing the adjusting part 3, and finishing the final assembly work.

Specifically, the difference between the outer diameter of the floating sleeve 13 and the inner diameter of the lock cylinder 11 is slightly greater than the difference between the outer diameter of the pin end 42 and the inner diameter of the support sleeve 12.

Further, the locking member 6 includes a rubber ring 61 and a plurality of arc-shaped ring blocks 62; the inner periphery of the rubber ring 61 is sleeved on the outer periphery of the annular groove 44, and the lower part of the rubber ring 61 is accommodated at the upper part of the inner periphery of the floating sleeve 13; the rubber ring 61 is of a hollow annular structure; a plurality of the arc-shaped ring blocks 62 can surround to form a complete ring-shaped structure; the annular structure formed by the arc-shaped ring block 62 is accommodated inside the annular structure of the rubber ring 61.

According to the above description, the locking member 6 includes the rubber ring 61 and the plurality of arc-shaped ring pieces 62. The rubber ring 61 is sleeved on the annular groove 44, and the rubber ring 61 is hollow and accommodates the arc-shaped ring block 62. The rubber ring 61 has elasticity and flexibility, and the inner circumference thereof can be passed by the bolt end 42 and the base 51, and can be sleeved in the annular groove 44 again. A plurality of arc-shaped ring blocks 62 can surround to form a complete ring-shaped structure and are locked in the annular groove 44; a plurality of arcuate ring blocks 62 can also be spread apart for the passage of the pin end 42, the base 51 and finally locked in the annular groove 44 under the spring force of the rubber ring 61.

Particularly, during processing, the locking piece 6 can be processed and finished in a mode of injecting glue and coating the arc-shaped ring block 62.

In particular, the locking element 6 can also be a plurality of balls.

Further, the pin end 42 includes a pin 43, the annular groove 44 and a guide head 45; the inserted rod 43 is fixed at the upper end of the threaded end 41; the annular groove 44 is annularly arranged on the outer peripheral wall of the top end of the inserting rod 43; the guide head 45 is fixed at the upper end of the annular groove 44; the guide head 45 is in a circular truncated cone-shaped structure with a small upper part and a large lower part.

According to the above description, the latch end 42 comprises a plunger 43, an annular groove 44 and a guide head 45. The guide head 45 is of a truncated cone-shaped structure with a small upper part and a large lower part, and mainly utilizes the inclined surface structure of a truncated cone surface to realize that the fixed support 5 and the floating sleeve 13 can be pulled through the thrust groove 52 in the radial direction simultaneously in the process that the bolt end 42 is inserted into the lock cylinder 11 along the axial direction, so that the floating sleeve 13 which can freely move in the radial direction of the lock cylinder 11 originally can automatically return to be aligned, and the subsequent plugging work is facilitated.

In particular, the thrust grooves 52 of the base 51 match the truncated-cone-shaped configuration of the guide head 45, so that the guide head 45 can better pull the fixing bracket 5.

In particular, the height of the annular groove 44 at the latch end 42 is matched to the position of the angled slot 16 in the floating sleeve 13 in the lock cylinder 11. The annular groove 44 may be slightly higher than the chute 16 to prevent the insertion rod 43 from being too short to allow the annular groove 44 to be in place and thus not complete the installation, or to prevent the locking member 6, which has been installed in place, from being pushed open by the insertion rod 43 due to the insertion rod 43 being too long.

In particular, the bottom of the chute 16 and the upper part of the annular groove 44 may be rounded in order to fit the outer circumference of the locking member 6, thereby improving the covering effect of the locking member 6 and preventing the locking member from falling off. Meanwhile, the arc-shaped surface can increase the stress area and improve the stress condition of the locking piece 6.

Further, an eccentric sleeve 22 is also included; the outer periphery of the eccentric sleeve 22 is in threaded connection with the inner side of the open end of the pin barrel 21; the threaded end 41 of the bolt head 4 is in threaded connection with the inner periphery of the eccentric sleeve 22; the threaded end 41 of the plug head 4 is arranged eccentrically to the pin barrel 21.

According to the above description, an eccentric sleeve 22 is also provided between the plug head 4 and the pin barrel 21. The eccentric sleeve 22 is arranged, and the pin end 42 of the pin head 4 and the pin cylinder 21 are mainly subjected to eccentric processing, so that after the eccentric sleeve 22 is adjusted, the eccentric pin end 42 can be located at different positions in the supporting sleeve 12, and the correction work is facilitated.

In particular, the bottom of the eccentric sleeve 22 is closed to prevent the latch head 4 from falling out of the bottom of the eccentric sleeve 22.

In particular, bayonets 17 are formed at the lower end of the supporting sleeve 12 and the upper end of the eccentric sleeve 22, so that the supporting sleeve 12 or the eccentric sleeve 22 can be adjusted.

Further, the device also comprises an elastic piece 14; the elastic part 14 is sleeved on the periphery of the support tube 57; the upper end of the elastic piece 14 is attached to the lower portion of the end face of the inner side of the lock cylinder 11, and the lower end of the elastic piece 14 is attached to the upper end of the pressing ring 56. The elastic member 14 mainly functions as a support and provides an elastic force to ensure that the pressing frame 55 can be surely pressed against the locking member 6.

Further, a gasket 15 is also included; the gasket 15 is fixed below the end face of the inner side of the lock cylinder 11; the upper end of the elastic element 14 is attached to the lower end of the gasket 15. The washer 15 is mainly used to provide a complete and smooth surface to prevent failure due to the failure of the locking member 6 to engage with the latch head 4 because the upper end of the support tube 57 or the upper end of the elastic member 14 is stuck due to the engagement between the connecting member 7 and the inner end surface of the lock cylinder 11.

Further, the adjusting part 3 comprises an adjusting nut 31 and a pin 33; a through hole which is vertical and hollow and is used for the bolt head 4 to pass through is formed in the middle of the adjusting nut 31; a vertical key groove 32 communicated with the through hole is formed in the inner side of the adjusting nut 31; one side of the pin key 33 is clamped and fixed in the key groove 32; a vertical sliding groove 46 is formed in the outer peripheral wall of the plug pin end 42 along the axial direction; the upper end of the chute 46 is communicated with the annular groove 44; the through hole of the adjusting nut 31 is sleeved outside the bolt end 42; the other side of the pin 33 is slidable in the slide groove 46.

According to the above description, the adjusting portion 3 includes the adjusting nut 31 and the pin 33. A key groove 32 is formed in a through hole in the middle of the adjusting nut 31, and one side of the pin key 33 is clamped and fixed in the key groove 32. The outer peripheral wall of the latch end 42 is provided with a sliding slot 46, and the other side of the pin 33 can slide in the sliding slot 46. Thus, when the adjusting nut 31 is rotated, the bolt head 4 can be driven to rotate through the cooperation between the pin key 33 and the sliding groove 46, and then the bolt head 4 can advance or retreat to enter or exit the lock cylinder 11 through the threaded cooperation between the threaded end 41 and the pin cylinder 21.

In particular, the slide groove 46 is provided on the plug rod 43 of the plug end 42.

Further, the elastic member 14 is a rubber tube having flexibility.

In particular, the elastic member 14 may be a spring.

The working principle of the invention is as follows:

referring to fig. 6 to 7, the latch 1 is illustrated in an initial installation state. At this time, the fixed bracket 5 is mounted on the inner periphery of the floating sleeve 13; the locking member 6 is mounted on the annular groove 53; the floating sleeve 13 is capable of moving radially along the lock cylinder 11. A gap is left between the upper end of the supporting tube 57 and the gasket 15; the elastic member 14 is in a compressed state.

Referring to fig. 11, the latch 2 is shown in an initial installation state. At this time, only the guide head 45 and the partial annular groove 44 are raised above the upper end of the adjustment nut 31.

When in use, one component is firstly hung above the other component, and the relative position between the two components is adjusted, so that the plug pin part 2 and the locking part 1 which are matched with each other on the two components can be basically aligned. And then the plugging operation is started.

Referring to fig. 17-18, the first stage, the deviation correcting stage, is to insert the bolt head 4 into the lock cylinder 11 by turning the adjusting nut 31. The pin end 42 enters the support sleeve 12, the upper part of the guide head 45 is contacted with the push bearing groove 52 of the fixed bracket 5, and the floating sleeve 13 and the locking mechanism are pulled through the guide effect of the round table surface of the guide head 45, so that the floating sleeve 13 and the locking mechanism can be coaxial with the pin head 4 finally.

Specifically, in the most extreme condition, i.e., when the plug end 42 is proximate to the inner circumference of the support sleeve 12 toward one side, the floating sleeve 13 and the latching mechanism are proximate to the inner circumference of the lock cylinder 11 toward the other side. At this time, the upper outer side of the guide head 45 can still be located in the range of the lower inner side of the push-bearing groove 52, so that the guide head 45 can realize the function of correcting deviation.

Referring to fig. 13-14, in the second stage, the pushing stage, as the latch end 42 continues to advance, the top end of the guide head 45 is pushed against the end surface of the push-bearing groove 52. The bolt end 42 continues to advance and the mounting bracket 5 is lifted until the top end of the support tube 57 contacts the washer 15 and the support tube 57 is compressed. At the same time, the elastic member 14 is continuously compressed. After the latch end 42 is further advanced, the rib 54 is broken by the force, and the fixing bracket 5 is separated into the base 51 and the pressing frame 55.

Referring to fig. 15-16, in the third stage, i.e., the transition stage, after the base 51 and the pressing frame 55 are separated, as the latch end 42 continues to advance, the outer diameter of the lower portion of the annular groove 53 gradually expands, so that the locking member 6 expands along the lower portion of the annular groove 53 and finally surrounds the outer side of the base 51; while the locking member 6 rises up the chute 16 of the floating sleeve 13 due to flaring. The locking element 6 is now in a maximum expanded state and in a maximum height stroke state. Meanwhile, as the locking piece 6 expands outwards and rises, the pressing frame 55 is jacked up by the locking piece 6, the supporting tube 57 and the elastic piece 14 are pressed, and both are in the maximum pressed state; furthermore, the outer periphery of the locking member 6 also presses the inner periphery of the retainer ring 58.

Referring to fig. 1-5, in a fourth stage, the locking stage, latch end 42 continues to advance until base 51 is separated from the outer periphery of base 51 by press ring 56, locking member 6. With continued advancement of the latch end 42, the locking member 6 is again moved from outside the guide head 45 to outside the annular groove 44. The originally pressed retainer ring 58 releases the elastic force and presses the locking piece 6 inwards; because the outer diameter of the annular groove 44 is smaller than that of the guide head 45, the locking piece 6 retracts and resets under the action of the elastic force of the rubber ring 61, and is sleeved on the annular groove 44. Meanwhile, the support tube 57 and the elastic member 14 which are originally pressed release the elastic force, the pressing frame 55 is pressed downwards, the locking member 6 is pushed to descend along the chute 16 of the floating sleeve 13 through the pressing ring 56, and the locking member 6 is pressed towards the annular groove 44, so that the locking effect is realized.

After all the connecting structures on the two components are inserted, the connecting structures are adjusted one by one. The bolt head 4 is enabled to reach the maximum advancing state by rotating the adjusting nut 31; since the annular groove 44 is only slightly higher than the chute 16, the locking element 6 is also only slightly pushed open by the rod 43 after the maximum advancement of the head 4, remaining in the chute 16 of the floating sleeve 13, the entire connection is not subject to failure, while ensuring that the locking element 6 is already in the annular groove 44, ensuring the locking effect. Then, the adjusting nut 31 is reversely rotated to enable the bolt head 4 to retreat, and then locking can be completed; because the included angle alpha between the chute 16 and the upper end of the annular groove 44 is less than 180 degrees, after the bolt head 4 retreats, the locking piece 6 is retained in the annular groove 44 due to the included angle alpha and cannot diffuse outwards again, and the locking piece 6 is effectively prevented from falling off.

After all the connecting structures on the two components are inserted, sealing materials such as cement or glue are smeared on the gap between the lock cylinder 11 and the pin cylinder 21 to fill the gap between the connecting structures, so that the connecting strength of the connecting structures is increased, and the connecting structures are prevented from loosening or corroding to cause the failure of the connecting structures.

Referring to fig. 19-20, when the eccentric sleeve 22 is used, the eccentric bolt end 42 can be located at different positions in the support sleeve 12, which is more advantageous for the correction work and the subsequent adjustment work of the components.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. The utility model provides an automatic eccentric connection structure of adjustable which characterized in that: comprises a locking part (1) and a bolt part (2) which are respectively arranged on two components; an adjusting part (3) is arranged between the locking part (1) and the plug pin part (2); the locking part (1) comprises a locking barrel (11) which is open towards the plug pin part (2), a supporting sleeve (12) which is arranged at the open end of the locking barrel (11) in a threaded manner, a floating sleeve (13) which is movably arranged on the supporting sleeve (12) and a locking mechanism which is arranged on the floating sleeve (13); the floating sleeve (13) can move along the radial direction of the lock cylinder (11); the plug pin part (2) comprises a pin cylinder (21) and a plug pin head (4); the pin barrel (21) is open to the lock (1); the bolt head (4) comprises a threaded end (41) in threaded connection with the open end of the bolt barrel (21) and a bolt end (42) fixed on the threaded end (41); an annular groove (44) is formed in the periphery of the upper portion of the bolt end (42); the annular groove (44) is matched and fixed with the locking mechanism after the bolt end (42) upwards penetrates through the supporting sleeve (12) and the floating sleeve (13); the adjusting part (3) is sleeved on the bolt end (42) and can control the depth of the bolt head (4) inserted into the lock cylinder (11); and the other end of the lock cylinder (11) and the other end of the pin cylinder (21) are respectively provided with a connecting piece (7).

2. The automatic adjustable eccentric connecting structure according to claim 1, wherein: the locking mechanism comprises a pressing frame (55) and a locking piece (6); the inner periphery of the locking piece (6) is sleeved on the outer periphery of the annular groove (44), and the lower part of the locking piece (6) is accommodated at the upper part of the inner periphery of the floating sleeve (13); the pressing frame (55) comprises a pressing ring (56), a supporting pipe (57) and a retainer ring (58); the compression ring (56) is horizontally arranged and sleeved above the outer side of the annular groove (44); the pressing ring (56) is pressed on the locking piece (6); the supporting tube (57) is vertically hollow and is fixed at the upper end of the inner side of the compression ring (56), and the supporting tube (57) is positioned on the periphery of the bolt end (42); the check ring (58) is vertically hollow and is fixed at the lower end of the outer side of the pressing ring (56), and the check ring (58) is positioned on the outer side of the locking piece (6); the retainer ring (58) is located above the floating sleeve (13).

3. The automatic adjustable eccentric connecting structure according to claim 2, wherein: the locking piece (6) comprises a rubber ring (61) and a plurality of arc-shaped ring blocks (62); the inner periphery of the rubber ring (61) is sleeved on the outer periphery of the annular groove (44), and the lower part of the rubber ring (61) is accommodated at the upper part of the inner periphery of the floating sleeve (13); the rubber ring (61) is of a hollow annular structure; the arc-shaped ring blocks (62) can be encircled to form a complete ring-shaped structure; the annular structure formed by the arc-shaped ring blocks (62) is accommodated inside the annular structure of the rubber ring (61).

4. The automatic adjustable eccentric connecting structure according to claim 1, wherein: the pin end (42) comprises a pin (43), the annular groove (44) and a guide head (45); the inserted rod (43) is fixed at the upper end of the threaded end (41); the annular groove (44) is annularly formed on the outer peripheral wall of the top end of the inserted rod (43); the guide head (45) is fixed at the upper end of the annular groove (44); the guide head (45) is of a round table-shaped structure with a small upper part and a large lower part.

5. The automatic adjustable eccentric connecting structure according to claim 1, wherein: further comprising an eccentric sleeve (22); the periphery of the eccentric sleeve (22) is in threaded connection with the inner side of the open end of the pin barrel (21); the threaded end (41) of the bolt head (4) is in threaded connection with the inner periphery of the eccentric sleeve (22); the threaded end (41) of the bolt head (4) and the pin barrel (21) are arranged eccentrically.

6. The automatic adjustable eccentric connecting structure according to claim 2, wherein: also comprises an elastic part (14); the elastic piece (14) is sleeved on the periphery of the supporting tube (57); the upper end of the elastic piece (14) is attached to the lower portion of the end face of the inner side of the lock cylinder (11), and the lower end of the elastic piece (14) is attached to the upper end of the pressing ring (56).

7. The automatic adjustable eccentric connecting structure according to claim 6, wherein: further comprising a gasket (15); the gasket (15) is fixed below the end face of the inner side of the lock cylinder (11); the upper end of the elastic piece (14) is attached to the lower end of the gasket (15).

8. The automatic adjustable eccentric connecting structure according to claim 1, wherein: the adjusting part (3) comprises an adjusting nut (31) and a pin key (33); the middle part of the adjusting nut (31) is provided with a vertical hollow through hole for the bolt head (4) to pass through; a vertical key groove (32) communicated with the through hole is formed in the inner side of the adjusting nut (31); one side of the pin key (33) is clamped and fixed in the key groove (32); a vertical sliding groove (46) is formed in the outer peripheral wall of the plug pin end (42) along the axial direction; the upper end of the sliding chute (46) is communicated with the annular groove (44); the through hole of the adjusting nut (31) is sleeved outside the bolt end (42); the other side of the pin key (33) can slide in the sliding groove (46).

9. The automatic adjustable eccentric connecting structure according to claim 6, wherein: the elastic piece (14) is a flexible rubber tube.

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