CN115681352B

CN115681352B - Universal coupling

Info

Publication number: CN115681352B
Application number: CN202211311790.6A
Authority: CN
Inventors: 吴幼成
Original assignee: Shanghai Kelan Transmission Equipment Co ltd
Current assignee: Shanghai Kelan Transmission Equipment Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-05-23
Anticipated expiration: 2042-10-25
Also published as: CN115681352A

Abstract

The application discloses universal joint, it includes: a rod body detachably assembled by the connecting cylinder and the connecting column; the rotating connecting part is arranged at one end, far away from the connecting cylinder and the connecting column, of the connecting cylinder; the extension column is fixed at one end of the connecting column far away from the rotary connecting part and is matched with the inner wall of the connecting cylinder; the ladder grooves are symmetrically arranged on the outer sides of the extension columns and are formed by multiple sections and are in a ladder shape; one end of the adjusting cylinder is rotatably sleeved at one end of the connecting cylinder far away from the rotary connecting part, and the other end of the adjusting cylinder is provided with a positioning component matched with the stepped groove; and the limiting component is arranged on the adjusting cylinder and the extending column and used for limiting the positions of the adjusting cylinder and the extending column. When the universal coupling is used, the length of the rod body can be conveniently adjusted according to actual conditions, so that the application range of the universal coupling can be increased, and the effect of time and labor saving is achieved.

Description

Universal coupling

Technical Field

The invention relates to the technical field of couplings, in particular to a universal coupling.

Background

The coupling is often seen in a plurality of mechanical parts, and is mainly composed of two parts, and when the coupling is used, the coupling needs to be connected with a driving shaft and a driven shaft respectively, and the common coupling also comprises a universal coupling which is widely applied to industries such as buildings due to flexible direction.

At present, the traditional universal coupling mainly comprises a rod body, a rotating connecting part which is arranged at the end part of the rod body and can rotate at will, and when the universal coupling is used, the rotating connecting part is only required to be connected with a part to be connected, so that multidirectional rotation can be realized.

Aiming at the related technical conditions, the inventor considers that in the process of actually using the universal coupling, the condition that the length of a rod body is insufficient or overlong is sometimes encountered, and at the moment, the universal couplings of different types need to be matched, and the process is time-consuming and labor-consuming, has high cost and needs to be further improved.

Disclosure of Invention

The utility model aims at providing a universal coupling can be according to the very convenient regulation of body of rod length of actual conditions to can increase universal coupling's application scope, reach labour saving and time saving's effect.

The application provides a universal joint adopts following technical scheme:

a universal joint, comprising: a rod body detachably assembled by the connecting cylinder and the connecting column; the rotating connecting part is arranged at one end, far away from the connecting cylinder and the connecting column, of the connecting cylinder; the extension column is fixed at one end of the connecting column far away from the rotary connecting part and is matched with the inner wall of the connecting cylinder; the ladder grooves are symmetrically arranged on the outer sides of the extension columns and are formed by multiple sections and are in a ladder shape; one end of the adjusting cylinder is rotatably sleeved at one end of the connecting cylinder far away from the rotary connecting part, and the other end of the adjusting cylinder is provided with a positioning component matched with the stepped groove; and the limiting component is arranged on the adjusting cylinder and the extending column and used for limiting the positions of the adjusting cylinder and the extending column.

Through adopting above-mentioned technical scheme, the extension post that sets up can with the connecting cylinder looks adaptation, when needs adjust body of rod length, can be through sliding extension post in the connecting cylinder the position, release locating component to adjust the restriction of section of thick bamboo can, this easy operation can effectually adjust the length of the body of rod to the application scope of adaptation universal joint, after adjusting the length of the body of rod, can utilize locating component to carry out preliminary location to the position of adjusting the section of thick bamboo, reuse limiting component lock to adjusting the section of thick bamboo can, whole process labour saving and time saving, the effect is obvious.

The application further provides that the positioning assembly comprises: a plurality of grooves formed at predetermined positions of the bottom wall of the stepped groove; the positioning beads are movably arranged in the grooves; the positioning sliding block is arranged at a preset position on the inner side of the adjusting cylinder and is matched with the step groove, and the bottom of the positioning sliding block is provided with a positioning groove; and the first elastic piece is arranged in the groove and used for driving the positioning beads to be inserted into the positioning groove.

Through adopting above-mentioned technical scheme, when the location slider of adjusting a section of thick bamboo removes the preset position in the ladder inslot, the first elastic component that sets up can drive the location pearl and pop out from the recess in and the draw-in groove of location slider to the preliminary restriction to connecting cylinder and spliced pole position is realized.

The application further sets up that spacing subassembly includes: a through hole which is arranged at the outer side of the adjusting cylinder and penetrates through the positioning sliding block; the limiting rod is arranged in the through hole in a sliding manner; the limit groove is arranged on the bottom wall of the step groove and is matched with the limit rod; and the driving component is arranged on the adjusting cylinder and used for driving the limiting rod to slide along the through hole so as to be inserted into the limiting groove.

Through adopting above-mentioned technical scheme, on locating component's basis, the drive assembly who sets up can drive the gag lever post and slide along the through-hole, until the gag lever post inserts in the spacing groove that corresponds to realize the restriction to spliced pole and connecting cylinder position, this structural design is ingenious, easy operation.

The application further provides that the drive assembly comprises: the rotating rod is rotatably arranged on the outer side of the adjusting cylinder; an abutting block mounted at the end of the rotating rod; the conical block is fixed at the outer end part of the limiting rod and is matched with the abutting block; and the second elastic piece is arranged in the through hole and used for driving the limiting rod to slide towards the direction of the adjusting cylinder.

Through adopting above-mentioned technical scheme, when needs drive gag lever post slides, can rotate the bull stick, the bull stick can drive the butt piece at rotatory in-process for the butt piece butt is to the inclined plane of toper piece, with gag lever post towards the direction propelling movement of spacing groove.

The conical block is further provided with an abutting surface matched with the abutting block on one side far away from the inclined surface, and a flange for limiting the abutting block is arranged on one side of the abutting surface.

Through adopting above-mentioned technical scheme, the butt face that sets up can laminate each other with the butt piece, increases the stability of butt piece, and the flange that sets up can fix a position and restrict the position of butt piece, reduces the rotatory condition of crossing the head of butt piece.

The limiting rod is further provided with a sliding hole penetrating through the conical block, a rod middle rod with the length consistent with that of the limiting rod is arranged in the sliding hole in a sliding mode, the bottom wall of the limiting groove is provided with a slot matched with the rod middle rod, a third elastic piece driving the rod middle rod to slide in the direction away from the slot is arranged in the sliding hole, and a pressing piece for pressing the rod middle rod to enable the rod middle rod to be inserted into the slot is arranged on the pressing piece.

Through adopting above-mentioned technical scheme, the pressure piece of setting can be on the basis that the gag lever post inserted the spacing groove, and the pole slides along the slide hole in the actuating lever to in the push rod pole inserts the slot in the spacing groove, thereby can further restrict connecting cylinder and spliced pole, in order to improve the stability of whole body of rod length adjustment.

The movable ring is sleeved on the connecting cylinder in a sliding mode, annular teeth which are meshed with each other are arranged at one ends, close to each other, of the movable ring and the adjusting cylinder in a ring mode, and an adjusting assembly used for driving the movable ring to slide so that the movable ring and the adjusting cylinder are meshed with each other is arranged on the connecting cylinder.

Through adopting above-mentioned technical scheme, when need carry out the restriction to the position of adjusting the section of thick bamboo, can utilize the regulation subassembly drive to remove the ring and slide on the connecting tube for remove the ring and adjust section of thick bamboo intermeshing, thereby realize the restriction to adjusting the section of thick bamboo position.

The connecting cylinder is further provided with a limiting sleeve with a T-shaped cross section, the inner wall of one end, close to the movable ring, of the limiting sleeve is matched with the outer contour of the movable ring, the limiting sleeve is provided with a plurality of limiting sliding holes, and the movable ring is fixedly provided with a sliding rod which slides through the limiting sliding holes.

Through adopting above-mentioned technical scheme, the stop collar that sets up can with remove ring looks adaptation to improve the stability of removing the ring, and the slide bar of setting up can further increase the stability of removing the ring in the removal in-process.

The application further provides that the adjusting assembly comprises: a reset spring movably sleeved on the slide bar, one end of the reset spring is fixed with the limit sleeve, and the other end of the reset spring is fixed with the movable ring; and the adjusting ring is sleeved on the outer side of the connecting cylinder and used for abutting against the end part of the sliding rod.

Through adopting above-mentioned technical scheme, when rotating the adjusting ring, the adjusting ring can conflict the tip of slide bar for the slide bar slides along spacing slide hole, and the slide bar can drive the removal ring and remove towards the direction of adjusting the section of thick bamboo at the slip in-process, until removal ring and adjusting the section of thick bamboo intermeshing can.

In summary, the present application includes at least one of the following beneficial technical effects:

the positioning assembly is arranged, the position of the adjusting cylinder can be initially positioned on the basis that the extending column is inserted into the connecting cylinder, and the position of the connecting cylinder and the position of the connecting column can be limited on the basis of the positioning assembly by the aid of the limiting assembly, so that the connecting cylinder and the connecting column are in a preset length, and the application range of the rod body can be enlarged;

through setting up shifting ring and adjusting part on the connecting cylinder, after confirming the position of adjusting the section of thick bamboo, can drive through the adjusting part who sets up and shift the ring slip, shifting ring can with adjusting the section of thick bamboo intermeshing to realize the restriction to adjusting the section of thick bamboo position, this structure can effectual increase stability after whole body of rod length is adjusted.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a partial structure in an embodiment of the present application;

FIG. 3 is a cross-sectional view of an extension column in an embodiment of the present application;

fig. 4 is a schematic view of the structure with the adjustment cylinder removed in an embodiment of the present application.

Reference numerals illustrate: 1. a rod body; 11. a connecting cylinder; 12. a connecting column; 13. an extension column; 130. a stepped groove; 131. a groove; 132. positioning beads; 133. a limit groove; 134. a slot; 2. a rotary connection part; 3. an adjustment cylinder; 31. positioning a sliding block; 32. a pressing rod; 33. a through hole; 34. a limit rod; 340. a conical block; 341. an abutment surface; 342. a flange; 35. a rotating rod; 36. an abutment block; 37. a pole-in-pole; 4. a moving ring; 41. annular teeth; 42. a limit sleeve; 43. a slide bar; 44. a return spring; 45. an adjusting ring.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a universal coupling, as shown in fig. 1 and 2, includes: the connecting tube 11 and the connecting column 12 are detachably assembled to form the rod body 1, the rotating connecting portion 2 is arranged at one end, far away from each other, of the connecting tube 11 and the connecting column 12, and the rotating connecting portion 2 can be used for direction conversion, so that the universal coupling is convenient to use.

An extension column 13 is fixed at one end of the connection column 12 far away from the rotary connection part 2, the extension column 13 can be inserted into the connection cylinder 11, at this time, the outer wall of the extension column 13 is contacted with the inner wall of the connection cylinder 11, wherein symmetrical stepped grooves 130 are arranged at the outer side of the extension column 13, the stepped grooves 130 are formed by multiple sections, and one end far away from the connection column 12 is arranged in an open mode.

The connecting cylinder 11 is connected with the adjusting cylinder 3 in a rotating way at one end far away from the rotating connecting part 2, the end of the adjusting cylinder 3 is rotatably sleeved outside the end of the connecting cylinder 11, the other end of the adjusting cylinder 3 extends out of the end of the connecting cylinder 11, a positioning component matched with the stepped groove 130 is arranged on the inner side of the extending part of the adjusting cylinder 3, meanwhile, a limiting component is arranged between one end extending out of the adjusting cylinder 3 and the extending column 13, when the position of the extending column 13 in the connecting cylinder 11 is adjusted, the position of the adjusting cylinder 3 can be positioned by the positioning component, the limiting component is used for limiting the adjusting cylinder 3 and the extending column 13, and the length of the rod body 1 can be adjusted to adapt to different actual requirements.

In this embodiment, as shown in fig. 2 and 4, the positioning assembly includes: it should be noted that, the step groove 130 in this embodiment is formed by a plurality of horizontal grooves and vertical grooves, the extending direction of the vertical grooves is the same as that of the extending column 13, and the horizontal grooves are perpendicular to the vertical grooves, so the groove 131 in this embodiment is disposed on the bottom wall of the end of the horizontal groove far away from the corresponding vertical groove, the positioning bead 132 is movably disposed in the groove 131, the first elastic member is further disposed in the groove 131, one end of the first elastic member is connected with the positioning bead 132, the other end is connected to the bottom wall of the groove 131, meanwhile, the positioning slider 31 adapted to the step groove 130 is fixed at the predetermined position inside the adjusting cylinder 3, and the positioning groove is disposed at the bottom of the positioning slider 31.

When the position of the extension column 13 needs to be limited, the adjusting cylinder 3 can be rotated, so that the positioning sliding block 31 corresponds to the position of the groove 131, at this time, the first elastic member drives the positioning bead 132 to be clamped into the positioning groove at the bottom of the positioning sliding block 31 by using the elastic force of the first elastic member, so as to realize preliminary positioning of the extension column 13, and it should be noted that in this embodiment, when the clamping between the positioning bead 132 and the positioning groove needs to be released, only a slight predetermined rotating force needs to be applied to the adjusting cylinder 3.

As shown in fig. 2 and 3, the limiting assembly includes: the through hole 33 is formed in the outer side of the adjusting cylinder 3, the whole positioning sliding block 31 is cuboid, the through hole 33 penetrates through the side, far away from the positioning groove, of the bottom end face of the adjusting cylinder 3 to the bottom end face of the positioning sliding block 31, the limiting rod 34 is movably arranged in the through hole 33, the limiting groove 133 matched with the end part of the limiting rod 34 is formed in the bottom wall of the transverse groove of the stepped groove 130, the driving assembly is arranged in the outer side of the adjusting cylinder 3, and the driving assembly can drive the limiting rod 34 to slide along the inner wall of the through hole 33.

In this embodiment, the driving assembly includes: the rotary rod 35 arranged on the outer side of the adjusting cylinder 3 is rotated, the abutting block 36 is fixed at the top end of the rotary rod 35, the conical block 340 is fixed at one end of the limiting rod 34 exposed out of the adjusting cylinder 3, and meanwhile, the second elastic piece is arranged in the through hole 33 and used for driving the limiting rod 34 to slide towards the direction of the adjusting cylinder 3.

When the positioning assembly initially positions the position of the extension column 13, at this time, the rotating rod 35 can be rotated to drive the abutting block 36 to rotate, the abutting block 36 can slide along the inclined surface of the conical block 340, so as to drive the limiting rod 34 to slide towards the limiting groove 133 through the conical block 340 until the abutting block 36 slides to a predetermined position along the inclined surface of the conical block 340, and at the same time, the bottom end of the limiting rod 34 can be inserted into the limiting groove 133, thereby realizing the position limitation of the extension column 13.

In order to improve the stability of the abutment block 36 abutting against the tapered block 340, in this embodiment, an abutment surface 341 adapted to the bottom end surface of the abutment block 36 is provided on the side of the tapered block 340 away from the inclined surface, and meanwhile, a flange 342 is further provided on the side of the abutment surface 341 away from the inclined surface, and by setting the flange 342, the position of the abutment block 36 in the rotation process can be effectively limited, so as to reduce the condition that the abutment block 36 rotates too much.

In this embodiment, a sliding hole is further formed in the limiting rod 34, the sliding hole penetrates through the tapered block 340, a rod-in-rod having a length consistent with that of the limiting rod 34 is slidably disposed in the sliding hole, a slot 134 adapted to the rod-in-rod 37 is disposed in the bottom wall of the limiting groove 133, a third elastic member is further disposed in the sliding hole, the third elastic member is used for driving the rod-in-rod 37 to slide in a direction away from the slot 134, and a pressing member is further disposed on the pressing block 36 and is used for driving the rod-in-rod 37 to insert into the slot 134.

The pressing member is a pressing rod 32 threaded on the pressing block 36, after the limiting rod 34 is inserted into the limiting groove 133, the pressing rod 32 can be rotated, the pressing rod 32 can be pressed against the top end of the middle rod 37 in the rotating process, so that the bottom end of the middle rod 37 is driven to be inserted into the corresponding slot 134, when the pressing rod 32 is reversely rotated, the middle rod 37 can be automatically reset under the restoring force of the third elastic member to be pulled out from the slot 134, in addition, when the pressing rod 32 is pressed against the middle rod 37, the pressing block 36 can be further limited, and sliding between the pressing block 36 and the pressing surface 341 is reduced.

Considering that in practice, the adjusting cylinder 3 rotates, in order to further improve the stability of the length adjustment of the whole rod body 1, in this embodiment, a moving ring 4 is slidably sleeved on the connecting cylinder 11, and annular teeth 41 meshed with each other are respectively arranged at one ends of the moving ring 4 and the adjusting cylinder 3, and an adjusting component is further arranged on the connecting cylinder 11, and the adjusting component can drive the moving ring 4 to move so as to adjust the distance between the moving ring 4 and the adjusting cylinder 3.

Wherein, fixed cover is equipped with stop collar 42 on connecting cylinder 11, and the transversal T shape setting of personally submitting of stop collar 42, it is to be noted that, stop collar 42 is close to the one end week side inner wall of adjusting cylinder 3 and the outer profile looks adaptation of removal ring 4, can improve the stability that removes ring 4, simultaneously, has seted up a plurality of spacing slide holes on stop collar 42, and the opening direction of spacing slide hole is consistent with the opening direction of adjusting cylinder 3, and is fixed with a plurality of slide bars 43 that pass spacing slide hole in the one end that removes ring 4 and be close to stop collar 42.

In this embodiment, the adjusting assembly includes: a return spring 44 movably sleeved on the slide rod 43, one end of the return spring 44 is connected with the limit sleeve 42, the other end of the return spring is connected with the end part of the movable ring 4, and an adjusting ring 45 is further sleeved on the outer side of the connecting cylinder 11 in a threaded manner.

When the adjusting cylinder 3 is adjusted to a preset position to be fixed, the adjusting ring 45 can be rotated, the adjusting ring 45 can be abutted against the sliding rod 43 when rotating, so that the sliding rod 43 slides along the limiting sliding hole, at the moment, the sliding rod 43 can drive the moving ring 4 to slide on the connecting cylinder 11 until the annular teeth 41 on the moving ring 4 are meshed with the annular teeth 41 on the adjusting cylinder 3, and therefore the position limiting of the adjusting cylinder 3 can be achieved.

In this embodiment, it should be noted that, when the length of the rod body 1 is adjusted, the positioning slider 31 slides along the horizontal slot and the vertical slot of the stepped slot 130, and when the length of the rod body 1 is adjusted, the positioning assembly and the limiting assembly are utilized to limit the positions of the connecting cylinder 11 and the connecting column 12.

In addition, in the present embodiment, the first elastic member, the second elastic member, and the third elastic member may all use compression springs with better elastic performance.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A universal joint, comprising: a rod body (1) detachably assembled by a connecting cylinder (11) and a connecting column (12);

a rotary connecting part (2) arranged at one end of the connecting cylinder (11) and the connecting column (12) which are far away from each other;

the extension column (13) is fixed at one end of the connecting column (12) far away from the rotary connecting part (2) and is matched with the inner wall of the connecting cylinder (11);

the ladder grooves (130) are symmetrically arranged outside the extension columns (13) and are formed by multiple sections and are in a ladder shape;

one end of the adjusting cylinder (3) is rotatably sleeved at one end of the connecting cylinder (11) far away from the rotary connecting part (2), and the other end of the adjusting cylinder is provided with a positioning component matched with the step groove (130);

the limiting component is arranged on the adjusting cylinder (3) and the extending column (13) and used for limiting the positions of the adjusting cylinder and the extending column,

the spacing subassembly includes: a through hole (33) which is arranged at the outer side of the adjusting cylinder (3) and penetrates through the positioning sliding block (31); a limit rod (34) arranged in the through hole (33) in a sliding way; the limit groove (133) is arranged on the bottom wall of the step groove (130) and is matched with the limit rod (34); the driving component is arranged on the adjusting cylinder (3) and used for driving the limiting rod (34) to slide along the through hole (33) so as to be inserted into the limiting groove (133);

the drive assembly includes: a rotating rod (35) rotatably arranged at the outer side of the adjusting cylinder (3); an abutting block (36) mounted on the end of the rotating rod (35); the conical block (340) is fixed at the outer end part of the limiting rod (34) and is matched with the abutting block (36); the second elastic piece is arranged in the through hole (33) and used for driving the limiting rod (34) to slide towards the direction of the adjusting cylinder (3);

the limiting rod (34) is provided with a sliding hole penetrating through the conical block (340), a rod middle rod (37) with the length consistent with that of the limiting rod (34) is arranged in the sliding hole in a sliding mode, the bottom wall of the limiting groove (133) is provided with a slot (134) matched with the rod middle rod (37), a third elastic piece driving the rod middle rod (37) to slide in the direction away from the slot (134) is arranged in the sliding hole, and the abutting block (36) is provided with an abutting piece for abutting the rod middle rod (37) to enable the rod middle rod (37) to be inserted into the slot (134);

the movable ring (4) is sleeved on the connecting cylinder (11) in a sliding manner, the annular teeth (41) which are meshed with each other are arranged at one ends, close to each other, of the movable ring (4) and the adjusting cylinder (3), and the adjusting assembly which is used for driving the movable ring (4) to slide so as to enable the movable ring (4) to be meshed with the adjusting cylinder (3) is arranged on the connecting cylinder (11).

2. The universal coupling according to claim 1, wherein said positioning assembly comprises: a plurality of grooves (131) formed in predetermined positions on the bottom wall of the stepped groove (130); positioning beads (132) movably arranged in the grooves (131); the positioning sliding block (31) is arranged at a preset position on the inner side of the adjusting cylinder (3) and is matched with the step groove (130), and the bottom of the positioning sliding block is provided with a positioning groove; and a first elastic member disposed in the groove (131) for driving the positioning bead (132) to be inserted into the positioning groove.

3. A universal coupling according to claim 1, characterized in that the conical block (340) is provided with an abutment surface (341) adapted to the abutment block (36) on the side facing away from the inclined surface, and that a stop (342) for limiting the abutment block (36) is provided on the side of the abutment surface (341).

4. The universal coupling according to claim 1, wherein a limiting sleeve (42) with a T-shaped cross section is fixedly sleeved on the connecting cylinder (11), the inner wall of one end of the limiting sleeve (42) close to the movable ring (4) is matched with the outer contour of the movable ring (4), a plurality of limiting sliding holes are formed in the limiting sleeve (42), and a sliding rod (43) which slides through the limiting sliding holes is fixedly arranged on the movable ring (4).

5. The universal coupling according to claim 1, wherein said adjustment assembly comprises: a reset spring (44) which is movably sleeved on the slide bar (43) and one end of which is fixed with the limit sleeve (42) and the other end of which is fixed with the movable ring (4); and an adjusting ring (45) which is sleeved on the outer side of the connecting cylinder (11) by threads and is used for abutting against the end part of the sliding rod (43).