CN108799286B

CN108799286B - Positioning device

Info

Publication number: CN108799286B
Application number: CN201710304676.3A
Authority: CN
Inventors: 吴明德; 张景凯
Original assignee: Hanwit Precision Industries Ltd
Current assignee: Hanwit Precision Industries Ltd
Priority date: 2017-05-03
Filing date: 2017-05-03
Publication date: 2020-06-23
Anticipated expiration: 2037-05-03
Also published as: CN108799286A

Abstract

The invention provides a positioning device, wherein a rotating space is arranged at one side of a through hole in a sleeve, a limiting ring body is arranged at the top of the outer side of the through hole, a first limiting clamping groove, two second limiting clamping grooves and a convex ring between the two second limiting clamping grooves are arranged at the outer edge of the limiting ring body, a positioning element penetrating into the through hole and an elastic element sleeved on the positioning element are arranged on the bottom surface of a rod head of an external rotating and buckling element of the sleeve, the rod head is positioned in an assembling space of a driving sleeve body, a long convex rod and two short convex rods which are respectively opposite to the first limiting clamping groove and the two second limiting clamping grooves are arranged in a sliding inner hole covering the outer part of the limiting ring body at one side of the assembling space, and the driving sleeve body can rotate in two directions when locking operation is carried out, and only can rotate in one direction when unlocking operation is carried out, so that the purpose of easily identifying the.

Description

Positioning device

Technical Field

The invention relates to a positioning device, in particular to a positioning device, wherein after a driving sleeve body outside a finger sleeve barrel is pressed downwards, a screwing element in the sleeve barrel can be locked through bidirectional rotation, however, the screwing element can only be reversely rotated in a single direction to be unlocked, so that the locking or unlocking state can be known through the rotating hand feeling, and the purposes of simplicity and quickness in operation are further achieved.

Background

When the common panel (plate-to-plate) is combined, the screw and the lantern ring can be fixed on the first panel by locking the positioning screw with the knob, the lantern ring and the screw, the knob is rotated to lock the screw into the second panel to form preset positioning, and the screw is locked by a hand tool to lock the first panel and the second panel into a whole.

However, if the user does not have to carry the adaptive hand tool inadvertently, the whole assembly and disassembly operation will be affected, so another positioning device for the user to fix or separate the plate-to-plate by means of bare-handed rotation is developed by the manufacturer, please refer to fig. 9 and 10, as can be seen clearly from the figure, the inner portion of the sleeve a is provided with a through hole a1, the outer edge of the top portion of the sleeve a is provided with a limit ring a2 in a protruding manner, the surface of the limit ring a2 is provided with a plurality of grooves a21 arranged at intervals, the limit ring a2 is provided with two first annular edges a22 with enlarged outer diameters between any two adjacent grooves a21, the other two opposite peripheral edges are provided with two second annular edges a23 with reduced outer diameters and arranged alternately with the two first annular edges a22, a rotary rod B1 of the rotary element B is provided in the through hole a1, the bottom of the rotary rod B1 is provided with a rotary rod B383, and the top portion of the sleeve B73784 is provided with a rod head 73784 exposed outside the sleeve a 73742, an elastic body B4 which is abutted against the inside of the through hole A1 is sleeved on the rotating rod body B1, an outer sleeve C is assembled outside the rotating buckle element B, an installation space C1 for assembling the rod head B3 is formed inside the outer sleeve C, a sliding hole C2 which covers the outside of the limit ring A2 and is longitudinally displaced is arranged on one side of the installation space C1, two opposite long convex rods C21 and two opposite short convex rods C22 which are adjacent to the two long convex rods C21 are respectively arranged on the inner wall surface of the sliding hole C2, each long convex rod C21 and each short convex rod C22 are respectively aligned and clamped in each groove A8 on the outer edge of the limit ring A2, a sharp-angle-shaped pulling part C3 is outwards arranged at the top of the outer side of the outer sleeve C, an indicating part C4 with an opening and closing mark is arranged on the top surface of the outer sleeve C, and after the sleeve A is positioned on a preset positioning plate body (not shown), the rotating buckle element B is driven by the outer sleeve C to longitudinally displace the rotating rod body B1 along the through the sleeve A1A 1, the rotating rod B2 of the rotating buckle element B passes through the hole of the preset fixing plate (not shown in the figure), and then the pulling part C3 of the outer sleeve C is pulled to rotate the outer sleeve C by clockwise or anticlockwise 90 degrees, so as to drive the rotating rod B2 to rotate and clamp at the bottom surface of the preset fixing plate, and further achieve the aim of locking the preset positioning plate and the preset fixing plate into a whole by bare hands.

However, since the two first ring edges a22 and the two second ring edges a23 of the limiting ring a2 of the sleeve a are arranged in a staggered manner, and the two long protruding rods C21 and the two short protruding rods C22 of the inner wall surface of the sliding hole C2 of the outer sleeve C are arranged oppositely, when the outer sleeve C is pressed down and rotated, the two long protruding rods C21 of the outer sleeve C can only rotate towards the two second ring edges a23 with smaller outer diameter, so that the outer sleeve C can only be used in a single-direction (clockwise or counterclockwise) reciprocating rotation manner no matter in the locked or unlocked state, so that when the rotating rod B2 of the turn-buckle element B is locked on the preset fixed plate body, a subsequent user cannot know that the turn-buckle element B is in the locked or unlocked state by rotating (both 90 degrees due to locking or unlocking), which may affect the time and smoothness of the overall operation, besides the time consumption and inconvenience, the indication part C4 must be further processed on the top surface of the outer sleeve C to know the locking and unlocking directionality of the positioning device, thereby increasing the processing cost.

In addition, the general positioning device is mostly installed in the cabinet of the telecommunication office, industrial computer, machine tool, server, etc., because the light inside the cabinet is dim, the indication part C4 of the outer sleeve C of the positioning device is not easy to be viewed and identified, so that the user can only feel whether the locking or unlocking state is present by feel, and the operation sensitivity is the same when locking or unlocking, which causes inconvenience in use.

Therefore, how to solve the above-mentioned problems and deficiencies is a direction in which relevant manufacturers in the industry need to research and improve.

Disclosure of Invention

Therefore, in view of the above problems and shortcomings, the inventor of the present invention has devised the positioning device by collecting relevant data, evaluating and considering them in many ways, and continuously trying and modifying them based on years of experience accumulated in the industry.

In order to achieve the purpose, the invention adopts the technical scheme that:

a positioning device, characterized by: comprises a sleeve, a rotary buckling element and a driving sleeve body, wherein:

the sleeve is internally provided with a hollow perforation, one side of the perforation is provided with a rotating space with a larger aperture, the position of the sleeve, which is adjacent to the outer side of the rotating space, is provided with a fixed part which is combined with a fixed hole of a preset first plate body, the other side of the sleeve, which is opposite to the fixed part, is convexly provided with a limiting ring body with a larger outer diameter, the periphery of the limiting ring body is provided with a first limiting clamping groove in a cutting way, two sides of the first limiting clamping groove are respectively provided with a second limiting clamping groove, and a convex ring with an enlarged outer diameter is formed between the two second limiting clamping;

the rotating element is movably assembled at the perforation of the sleeve and is provided with a rod head positioned above the sleeve, the bottom surface of the rod head extends downwards to form a positioning element which is penetrated into the perforation, the positioning element is provided with a rod body, a positioning part movably positioned in the rotating space is arranged below the rod body, and an elastic element which is elastically supported on the bottom surface of the rod head and the inside of the perforation is sleeved outside the positioning element;

the driving sleeve is assembled outside the turnbuckle element and forms an assembling space for assembling the rod head of the turnbuckle element inside, and one side of the assembly space is provided with a sliding inner hole which is covered on the outer part of the limiting ring body of the sleeve and longitudinally moves, the inner wall surface of the sliding inner hole is provided with a long convex rod for being aligned and clamped in the first limiting clamping groove of the limiting ring body, two short convex rods which are relatively short and are used for being aligned and clamped in the two second limiting clamping grooves of the limiting ring body are arranged at two sides of the long convex rod, and a rotary section for reciprocating rotation along the outer edge of the limiting ring body is formed at the inner side of the upper part of the two short convex rods opposite to the long convex rods, when the driving sleeve body is pressed downwards, the convex ring is blocked at the two short convex rods, and when the driving sleeve body is pressed downwards and rotates, the positioning part of the positioning element is rotated and buckled at the through hole of the preset second plate body, and then the convex ring is blocked at the long convex rod.

The positioning device, wherein: an axial hole with a reduced aperture and for the positioning element of the rotary fastening element to penetrate is arranged between the through hole and the rotating space of the sleeve, an inclined abutting shoulder for the elastic element to abut is formed at the position adjacent to the through hole and the axial hole, and a stop surface for stopping at the top surface of the positioning part of the positioning element is formed at the position adjacent to the axial hole at the inner side of the rotating space.

The positioning device, wherein: two second limiting clamping grooves of the limiting ring body are respectively arranged at the adjacent 90-degree angle positions of the periphery of the first limiting clamping groove, a convex ring formed between the two second limiting clamping grooves is arranged at the position of the remaining 180-degree angle, and two short convex rods with short relative lengths are arranged at the positions of the 90-degree angles on two sides of the long convex rod of the inner wall surface of the sliding hole.

The positioning device, wherein: the outer surface of the periphery of the rod head of the rotary buckling element is convexly provided with an annular mosaic body, and the inner side of the assembling space is provided with a clamping groove which has larger aperture and is used for assembling and positioning the annular mosaic body.

The positioning device, wherein: the center of the rod head of the rotary fastening element is provided with a butt joint hole in a penetrating way, and the other side of the positioning element of the rotary fastening element relative to the positioning part is provided with a combination part which is used for being embedded and fixed in the butt joint hole.

The positioning device, wherein: the opposite two sides of the positioning part of the positioning element are provided with a plurality of stop blocks which are used for stopping the bottom surface of the through hole of the preset second plate body.

The positioning device, wherein: the height difference between the long convex rod and the short convex rod of the sliding inner hole of the driving sleeve body is larger than or equal to the thickness of the limiting ring body of the sleeve.

The positioning device, wherein: the outer surface of the driving sleeve body is provided with a holding part, and the holding part is outwards provided with a long strip-shaped pulling block at the position corresponding to the long convex rod.

The main advantages of the invention are that a rotating space with larger aperture is arranged at one side of the through hole in the sleeve, a fixing part is arranged at the position of the sleeve adjacent to the outer side of the rotating space, a limiting ring body with larger external diameter is convexly arranged at the other side of the sleeve opposite to the fixing part, a first limiting clamping groove is arranged at the periphery of the limiting ring body, second limiting clamping grooves are respectively arranged at two sides of the first limiting clamping groove, a convex ring with enlarged external diameter is formed between the two second limiting clamping grooves, a club head of a screwing element is arranged at the upper part of the sleeve, an elastic element which is sleeved by a positioning element and a positioning element penetrating into the through hole and elastically supported on the bottom surface of the club head and the inside of the through hole is downwards arranged at the bottom surface of the club head, then the club head of the screwing element is arranged in an assembling space of a driving sleeve body, and a sliding inner hole which is covered on the outer, the inner wall surface of the sliding inner hole is provided with a first limiting clamping groove and two long convex rods and two short convex rods, which are used for being aligned and clamped in the first limiting clamping groove and the two second limiting clamping grooves of the limiting ring body, when the driving sleeve body is pressed and locked, the driving sleeve body can axially rotate towards two directions, and after the screwing element is locked, the convex rings can block the long convex rods on the inner wall surface of the sliding inner hole, so that the driving sleeve body can only rotate back and forth in one direction to unlock, and a user can easily identify that the screwing element is in a locking state or an unlocking state through the difference of the operation handfeel of the driving sleeve body, so that the user can simply and quickly operate intuitively, and the purposes of improving the convenience and the smoothness of installation or detachment are achieved.

The secondary advantage of the present invention is that the long protruding rod and the two short protruding rods in the sliding inner hole of the driving sleeve respectively lift and displace longitudinally along the first limiting slot and the two second limiting slots of the limiting ring body of the sleeve, and the driving sleeve simultaneously drives the positioning part at one side of the positioning element of the screwing element to longitudinally enter and exit the rotating space at one side of the sleeve, so that the present invention can lock or unlock the preset first plate and the second plate by simple and easy operation without using any hand tool, thereby achieving the purpose of saving time and labor.

Another advantage of the present invention is that before the driving sleeve is pressed down, the protruding ring of the limiting ring body is two short protruding rods for stopping the inner wall surface of the sliding inner hole, so as to prevent the driving sleeve from rotating axially, and further enable the positioning portion at one side of the positioning element to pass through the through hole of the second plate, and after the driving sleeve is pressed down and rotated, the protruding ring can stop the long protruding rod sliding the inner wall surface of the inner hole, so that the driving sleeve can only rotate back in the opposite direction of rotation, thereby having a good fool-proof effect, and thus achieving the purpose of improving the smoothness of use.

The present invention has the further advantage that when the positioning element of the rotary fastening element is driven by the driving sleeve to longitudinally displace, the length of the positioning element is greater than that of the sleeve, so that the positioning part on one side of the positioning element extends out of the sleeve, and at the moment, if the second plate is not arranged below the first plate, the positioning part of the positioning element is influenced by the reset of the elastic element and is retracted into the sleeve, so as to have no clamping effect, and further, a user can know that the second plate for locking is not arranged below the first plate through the operation hand feeling, so that the present invention has a good fool-proof effect, and the purpose of improving the assembly certainty is achieved.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is an exploded perspective view from another perspective of the present invention.

Fig. 4 is a side sectional view of the present invention.

Fig. 5 is a side sectional view of the invention in operation.

Fig. 6A-6C are top sectional views of the driving sleeve rotating according to the present invention.

Fig. 7 is a side sectional view of the invention operating from another perspective.

Fig. 8 is a side sectional view of the invention after operation from another perspective.

Fig. 9 is an exploded perspective view of a prior art structure.

Fig. 10 is an exploded perspective view of another perspective of a prior art structure.

Description of reference numerals: 1-a sleeve; 10-perforating; 101-a holding shoulder; 11-a swirling space; 111-a stop surface; 12-shaft hole; 13-a fixed part; 14-a stop ring body; 141-a first limit card slot; 142-a second limiting slot; 143-convex ring; 2-a spinner element; 21-a club head; 210-a docking hole; 211-chimera; 22-a positioning element; 221-a binding moiety; 222-a rod body; 223-a positioning section; 2231-a stop block; 23-a resilient element; 3-driving the sleeve body; 30-an assembly space; 301-a clamping groove; 31-sliding an inner hole; 311-long nose bar; 312-short nose bar; 32-revolution interval; 33-a grip portion; 331-pulling block; 4-a first sheet material; 40-fixing holes; 5-a second plate; 50-a through hole; a-a sleeve; a 1-perforations; a2-stop collar; a21-groove; a22 — first loop edge; a23 — second loop edge; b-a spinner element; b1-rotating the rod body; b2-swivel lever; b3-head; b4-elastomer; c-an outer sleeve; c1-installation space; c2-slip hole; C21-Long nose bar; c22-short nose bar; c3-pulling part; c4-indication.

Detailed Description

To achieve the above objects and advantages, the present invention provides a method for implementing the same, its structure, and its implementation method, which are described in detail with reference to the preferred embodiments of the present invention.

Referring to fig. 1, fig. 2, fig. 3, and fig. 4, which are a perspective view, an exploded perspective view from another perspective, and a side sectional view of the present invention, it can be clearly seen from the drawings that the positioning device of the present invention includes a sleeve 1, a turnbuckle element 2, and a driving sleeve 3, wherein:

the sleeve 1 is internally provided with a hollow through hole 10, one side of the through hole 10 is provided with a rotating space 11 with a larger aperture, an axial hole 12 with a reduced aperture is arranged between the through hole 10 and the rotating space 11, an inclined abutting shoulder 101 is formed at the position adjacent to the axial hole 12 of the through hole 10, a stop surface 111 is formed at the position adjacent to the axial hole 12 at the inner side of the rotating space 11, a fixing part 13 is arranged at the position adjacent to the outer side of the rotating space 11 of the sleeve 1, a limiting ring body 14 with a larger outer diameter is convexly arranged at the other side of the sleeve 1 relative to the fixing part 13, a first limiting clamping groove 141 is arranged at the periphery of the limiting ring body 14, second limiting clamping grooves 142 are respectively arranged at two sides of the first limiting clamping groove 141, and a convex ring 143 with an enlarged outer diameter is formed between the.

The rotating and fastening element 2 includes a rod head 21, a positioning element 22 and an elastic element 23, wherein the outer surface of the periphery of the rod head 21 is provided with a protruding ring-shaped fitting body 211, the center of the rod head 21 is provided with a butt joint hole 210, a knurling-shaped combining part 221 above the positioning element 22 is fixed in the butt joint hole 210, a rod body 222 extends below the combining part 221, a positioning part 223 is arranged below the rod body 222, a plurality of stoppers 2231 are protruded outwards at two opposite sides of the positioning part 223, and the rod body 222 of the positioning element 22 is sleeved with the elastic element 23.

The driving sleeve 3 is formed with a hollow assembly space 30 inside, a fastening groove 301 with a larger aperture is arranged inside the assembly space 30, a sliding inner hole 31 penetrating outwards is arranged at one side of the fastening groove 301, a long protruding rod 311 is arranged on the inner wall surface of the sliding inner hole 31, two short protruding rods 312 with relatively short length are arranged at two sides of the long protruding rod 311, a rotation section 32 is formed above the two short protruding rods 312 and at the inner side opposite to the long protruding rod 311, a holding part 33 is arranged on the outer surface of the driving sleeve 3, and a strip-shaped pulling block 331 is arranged at the position of the holding part 33 opposite to the long protruding rod 311.

When the above components are assembled, the positioning element 22 of the fastening element 2 is movably inserted into the through hole 10 and the shaft hole 12 of the sleeve 1, so that the plural stoppers 2231 of the positioning portion 223 on one side of the positioning element 22 can be abutted against the stopping surface 111 on the inner side of the rotating space 11, thereby preventing the positioning element 22 from moving out of the through hole 10 and the shaft hole 12 of the sleeve 1, so that the positioning portion 223 of the positioning element 22 can move in and out of the rotating space 11 in the longitudinal direction, the club head 21 on the other side of the positioning element 22 is exposed above the through hole 10 of the sleeve 1, and the elastic element 23 sleeved on the club body 222 of the positioning element 22 is abutted against the abutting shoulder 101 inside the through hole 10 and the bottom surface of the club head 21 of the fastening element 2, so that the annular embedded body 211 of the club head 21 can be used to drive the fastening groove 301 on one side of the assembling space 30 of the club head 3 for assembly, the sliding inner hole 31 at the other side of the assembling space 30 is movably sleeved outside the limiting ring body 14 of the sleeve 1, the long protruding rod 311 and the two short protruding rods 312 on the inner wall surface of the sliding inner hole 31 are respectively clamped and positioned in the first limiting clamping groove 141 and the two second limiting clamping grooves 142 on the surface of the limiting ring body 14, and the two short protruding rods 312 are stopped and limited by the protruding ring 143 of the limiting ring body 14 to prevent the driving sleeve body 3 from axially rotating, so that the sleeve 1, the screwing element 2 and the driving sleeve body 3 constitute the positioning device of the present invention.

The circumference of the limiting ring body 14 on one side of the sleeve 1 is provided with a first limiting slot 141, two sides of the first limiting slot 141 are respectively provided with a second limiting slot 142, two second limiting slots 142 are respectively arranged at the adjacent 90-degree positions of the circumference of the first limiting slot 141, and a convex ring 143 formed between the two second limiting slots 142 is arranged at the position of the remaining 180-degree angle.

Furthermore, the inner wall surface of the sliding inner hole 31 of the driving sleeve body 3 is provided with a long protruding rod 311, two short protruding rods 312 with short relative length are arranged at 90-degree angle positions on two sides of the long protruding rod 311, a turning section 32 with about 180 degrees is formed above the two short protruding rods 312 and at the inner side opposite to the long protruding rod 311, and the height difference between the long protruding rod 311 and the short protruding rod 312 is greater than or equal to the thickness of the limiting ring body 14 of the sleeve 1, so that after the driving sleeve body 3 is pressed, the two short protruding rods 312 can be separated from the limitation of the two second limiting clamping grooves 142 of the limiting ring body 14.

Referring to fig. 2, fig. 4, fig. 5, fig. 6A-fig. 6C, fig. 7, and fig. 8, it is shown that the positioning device of the present invention can be assembled to the fixing hole 40 of the first plate 4 by the fixing portion 13 outside the sleeve 1, and the second plate 5 is combined to the lower portion of the first plate 4, and the through hole 50 formed in the second plate 5 is rectangular, and the fixing hole 40 of the first plate 4 and the lower portion of the sleeve 1 can be aligned, so that the force can be applied to the surface of the driving sleeve 3 above the sleeve 1 to press the driving sleeve 3 longitudinally, thereby driving the positioning element 22 of the fastening element 2 to be located at the through hole 10, and the positioning element 22 of the fastening element 2 to be located at the through hole 10, The shaft hole 12 is longitudinally displaced, and the bottom surface of the rod head 21 of the screwing element 2 is used to press the elastic element 23 sleeved outside the positioning element 22, at this time, the positioning portion 223 at the bottom of the positioning element 22 will exit out of the rotating space 11 of the sleeve 1 to pass through the lower portion of the through hole 50 of the second plate 5, at the same time, the two relatively short protruding rods 312 at the inner wall surface of the sliding inner hole 31 of the driving sleeve body 3 will be displaced downward along with it to separate from the limitation of the two second limiting slots 142 on the surface of the limiting ring body 14, and the limiting ring body 14 will enter into the rotating interval 32 formed between the two short protruding rods 312 and the two long protruding rods 311, and then the pulling block 331 of the holding portion 33 will be rotated again, so that the long protruding rod 311 of the ring body can be rotated counterclockwise (or clockwise) by about 90 degrees along the outer edge of the limiting ring 14 (as shown in fig. 6A and 6B), and at the same time, the plurality of the stoppers 2231 at both sides of the positioning portion 223 will be, the plurality of stoppers 2231 of the positioning portion 223 are laterally clamped at the bottom of the through hole 50 of the second plate 5 by vertically and alternately clamping with the through hole 50 of the second plate 5 (as shown in fig. 6C), so as to fix the second plate 5 at the bottom of the first plate 4 in a locked state, thereby achieving the effect of stable combination and not easy to loosen and separate.

When the second plate 5 is to be separated from the first plate 4, the second plate is pulled to the holding portion 33 of the driving sleeve 3 again, since the long protruding rod 311 of the sliding inner hole 31 is stopped by the protruding ring 143 of the limiting ring 14, the driving sleeve 3 can only rotate in a reverse direction (one way) (rotate in a reverse direction by about 90 degrees), and further the positioning portion 223 of the positioning element 22 is driven to rotate back, so that the plurality of stopping blocks 2231 of the positioning portion 223 are aligned in parallel with the long rectangular through hole 50 of the second plate 5 (as shown in fig. 6A), at this time, the long protruding rod 311 of the driving sleeve 3 can move up and down longitudinally along the first limiting slot 141 of the limiting ring 14 of the sleeve 1 by the aid of the elastic restoring force of the elastic element 23 of the screwing element 2, so that the limiting ring 14 is separated from the rotation region 32 of the driving sleeve 3, and the long protruding rod 311 and the two short protruding rods 312 are respectively retained in the first limiting slot 141 and the two second limiting slots 142 of the limiting ring 14 again, the elastic element 23 is also continuously supported on the bottom surface of the rod head 21 of the fastening element 2 to drive the positioning element 22 to longitudinally lift in the through hole 10 and the shaft hole 12, so that the positioning portion 223 on one side of the positioning element 22 passes through the through hole 50 of the second plate 5 and enters the rotating space 11 below the sleeve 1, the plurality of stoppers 2231 of the positioning portion 223 again abut on the stop surface 111 inside the rotating space 11, the limit locking of the second plate 5 is released, the second plate 5 and the first plate 4 can be separated to be in an unlocked state, the driving sleeve 3 can rotationally drive the fastening element 2 to longitudinally move up and down along the through hole 10 and the shaft hole 12 of the sleeve 1 above the sleeve 1, and the first plate 4 and the second plate 5 can be combined (locked) or separated (unlocked) only by simple and easy operation without using any hand tool, thereby achieving the purpose of saving time, and easy assembly, The labor-saving effect.

The driving sleeve 3 can rotate in two directions in the locking process by pressing, and can only rotate in one direction back in the direction of turning in the unlocking process so that users can have obvious difference in operation hand feeling, and the users can easily identify the screwing element 2 to be in a locking state or an unlocking state by whether the screwing element can rotate clockwise or anticlockwise in two directions, so that the users can operate simply and quickly, and the effects of improving the convenience and the smoothness of installation or detachment are achieved.

And a protruding ring 143 with an enlarged outer diameter is formed between the two second limiting slots 142 of the limiting ring body 14 of the sleeve 1, before the driving sleeve body 3 is pressed downward, the protruding ring 143 is two short protruding rods 312 for blocking the inner wall surface of the sliding inner hole 31 to prevent the driving sleeve body 3 from rotating axially, so that the positioning portion 223 at one side of the positioning element 22 can actually pass through the through hole 50 of the second plate 5, and after the driving sleeve body 3 is pressed downward and rotated, the protruding ring 143 can be used for blocking the long protruding rod 311 at the inner wall surface of the sliding inner hole 31, so that the driving sleeve body 3 can only rotate back in the opposite direction of rotation, thereby having a good fool-proof effect, and thus achieving the effect of improving the smoothness of use.

In addition, the length of the positioning element 22 of the above-mentioned screwing element 2 is greater than the length of the sleeve 1, so when the sleeve 1 is fixed on the first plate 4, and the positioning element 22 is driven by the driving sleeve body 3 to longitudinally displace, the positioning part 223 on one side of the positioning element 22 will extend out of the sleeve 1, at this time, if the second plate 5 is not arranged below the first plate 4, the positioning part 223 of the positioning element 22 will be influenced by the reset of the elastic element 23 and will be retracted into the sleeve 1, so as not to have a clamping effect, and further, a user can know that the second plate 5 for locking is not arranged below the first plate 4 through the operation hand feeling, so that the anti-fool effect is good, and the utility of improving the assembly accuracy is achieved.

The above detailed description is directed to a preferred embodiment of the present invention, which is not intended to limit the scope of the invention, but rather is intended to cover all equivalent variations and modifications within the scope of the invention as defined in the appended claims.

Claims

1. A positioning device, characterized by: comprises a sleeve, a rotary buckling element and a driving sleeve body, wherein:

the driving sleeve is assembled outside the turnbuckle element and forms an assembling space for assembling the rod head of the turnbuckle element inside, and one side of the assembly space is provided with a sliding inner hole which is covered on the outer part of the limiting ring body of the sleeve and longitudinally moves, the inner wall surface of the sliding inner hole is provided with a long convex rod for being aligned and clamped in the first limiting clamping groove of the limiting ring body, two short convex rods which are relatively short and are used for being aligned and clamped in the two second limiting clamping grooves of the limiting ring body are arranged at two sides of the long convex rod, and a rotary section for reciprocating rotation along the outer edge of the limiting ring body is formed at the inner side of the upper part of the two short convex rods opposite to the long convex rods, when the driving sleeve body is pressed downwards, the convex ring is blocked at the two short convex rods, and when the driving sleeve body is pressed downwards and rotates, the positioning part of the positioning element is rotationally buckled at the through hole of the preset second plate body, and then the convex ring is blocked at the long convex rod;

two second limiting clamping grooves of the limiting ring body are respectively arranged at the adjacent 90-degree-angle positions of the periphery of the first limiting clamping groove, a convex ring formed between the two second limiting clamping grooves is arranged at the position of the remaining 180-degree angle, and two short convex rods with short relative lengths are arranged at the 90-degree-angle positions on two sides of the long convex rod on the inner wall surface of the sliding inner hole;

the height difference between the long convex rod and the short convex rod of the sliding inner hole of the driving sleeve body is larger than or equal to the thickness of the limiting ring body of the sleeve.

2. The positioning device of claim 1, wherein: an axial hole with a reduced aperture and for the positioning element of the rotary fastening element to penetrate is arranged between the through hole and the rotating space of the sleeve, an inclined abutting shoulder for the elastic element to abut is formed at the position adjacent to the through hole and the axial hole, and a stop surface for stopping at the top surface of the positioning part of the positioning element is formed at the position adjacent to the axial hole at the inner side of the rotating space.

3. The positioning device of claim 1, wherein: the outer surface of the periphery of the rod head of the rotary buckling element is convexly provided with an annular mosaic body, and the inner side of the assembling space is provided with a clamping groove which has larger aperture and is used for assembling and positioning the annular mosaic body.

4. The positioning device of claim 1, wherein: the center of the rod head of the rotary fastening element is provided with a butt joint hole in a penetrating way, and the other side of the positioning element of the rotary fastening element relative to the positioning part is provided with a combination part which is used for being embedded and fixed in the butt joint hole.

5. The positioning device of claim 1, wherein: the opposite two sides of the positioning part of the positioning element are provided with a plurality of stop blocks which are used for stopping the bottom surface of the through hole of the preset second plate body.

6. The positioning device of claim 1, wherein: the outer surface of the driving sleeve body is provided with a holding part, and the holding part is outwards provided with a long strip-shaped pulling block at the position corresponding to the long convex rod.