TWI500854B - Rotary fixture - Google Patents

Description

Rotary fixture

The present invention provides a rotary fixing device, in particular, a fixing device that can be rotated in a single direction to be positioned and reversely disengaged, and the polygonal locking portion on one side of the knob rotates on the polygonal pole of the fixed sleeve, and The movable rod is moved and expanded in the positioning sleeve to facilitate the positioning of the control knob on the positioning sleeve.

Press, many items in daily life, in the process of moving back and forth, will be applied to the positioning mechanism such as screws or spigots to achieve the positioning effect, such as drawers, chassis panels and other items with telescopic structure, using screws Or the insertion of the slide rails and the chutes to the predetermined position, temporarily forming a position for the user to work in the state where the slide rails and the chutes are positioned or not moved; or such as a desktop computer, a notebook computer, or an industrial Computers, work machines, etc., which are assembled by a plurality of devices and mechanisms, use screws or spigots to position the plates and plates in a stacked state, so that the outer casing of the mechanism is provided with a movable assembly and disassembly plate. Or allow multiple devices and mechanisms to be easily assembled or disassembled.

In addition, the general screw and the tip of the plug, in addition to the tip and the thread, may cause the user to inadvertently touch and cause the injury, and when the device, mechanism or plate is disassembled, the screw or the tip should be completely detached. In use, it often encounters the problem of missing screws or plugs, and if the user does not have spare screws or plugs, it is assembled by using residual screws or plugs, resulting in a group. After the installation, the plate and the plate form an unstable combination, which is easy to loosen and disengage. It will also be placed in the same position after disassembling many screws or pins, and it is impossible to find the corresponding screw or the tip for assembly and fixing. In addition, most of the screws or spigots need to be handled by hand tools (such as screwdrivers or wrenches). With the different types of screws or spigots, users need to prepare many hand tools, often In the case that assembly and disassembly operations are not smooth, the above problems and defects are constantly generated in actual use, resulting in the inconvenience of the plate being stacked and positioned by screws or pins.

In order to solve the problem of the use of screws or pin positioning on the plate, that is, the position of the plate is carried out by the positioning device, please refer to the figure IX, the positioning device A is arranged on one side of the outer sleeve A1. There are two opposite concave arc portions A11, and the outer sleeve A1 is sleeved outside the inner sleeve A2, and the outer annular surface of the inner sleeve A2 is provided with two opposite cutting faces A21 and bottom portions A22 of the respective cutting faces, and The side of the inner sleeve A2 is provided with a perforation A23, and the other side is provided with a joint A24. Then, the rod body A31 of the cassette A3 penetrates into the inner sleeve A2, and the rod body A31 is provided with a spring A32 and a side protrusion. A33 is inserted into the outer sleeve A1 through the through hole A23 of the inner sleeve A2, and is rotated outside the inner sleeve A2 through the outer sleeve A1, and is inserted into the step A22 of the cutting plane A21 or left through the concave arc portion A11. The head A34 on the side of the rod A31 of the cassette A3 can be telescopically displaced in the inner sleeve A2, and the outer sleeve A1 is rotated outside the inner sleeve A2 without direction limitation, and the cutting plane A21 cannot be directly observed. And the position of the step A22, when the outer sleeve A1 is rotated, it can only be judged by the hand feeling whether the two concave arc portion A11 has been locked at the second-order portion A22, and the card is not formed easily. Actually, the external force is swayed and the detachment is lost, and the two concave arc portions A11 of the outer sleeve A1 are continuously rotated and rubbed on the outer surface of the inner sleeve A2, and are not restricted by any direction, which easily leads to the two concave arc portions A11 and the inner sleeve. Wear of the outer surface of the cylinder A2 It will also cause problems and problems with the inconsistency of the step A22 of the outer sleeve A1, that is, the direction for the relevant manufacturers engaged in this industry to research and improve.

Therefore, in view of the above-mentioned problems and deficiencies, the inventors have collected relevant information, and through multi-party evaluation and consideration, and through years of experience in the industry, through continuous trial and modification, this design can be designed for one-way rotation. The button, the rod of the positioning sleeve and the rod of the positioning sleeve form a card or a detachment, and the invention patent of the rotary fixing device that drives the fixing rod to telescope in the positioning sleeve to be locked or disengaged from the preset plate.

The main purpose of the present invention is that the knob cover of the fixing device covers the top of the positioning sleeve, and the rotating space on the knob has a matching hole on one side and a locking portion on the other side, and is accommodated in the positioning sleeve. The fixing rod has a shaft hole on one side of the positioning hole and a matching hole on the other side, and the polygonal pole outside the positioning sleeve is rotated or locked by the locking portion of the knob, and The abutting portion of the fixing rod that is disposed in the positioning sleeve is located outside the shaft hole and is positioned in the butting hole of the knob, and the shaft portion of the connecting portion is provided with an elastic body and then the shaft portion and The elastic body is inserted into the accommodating space of the positioning sleeve, and the holding body on the other side of the shaft portion is telescoped and moved by the knob to the bottom of the accommodating space of the positioning sleeve, and the unidirectional rotating knob is positioned on the positioning sleeve. In the opposite direction, the purpose of separation is to form a stable card system and it is not easy to separate.

The secondary object of the present invention is that the locking portion of the knob has a plurality of snap shoulder grooves in a polygonal shape, and a guiding arc surface is provided on one side of each of the snap shoulder grooves, and the positioning sleeve is provided. The pole column of the cylinder is opposite to the locking portion in a polygonal shape, so that the locking portion of the knob is rotated in a single direction outside the polygonal pole, and the rotation of each guiding arc along each corner of the pole is rotated. The leg-shaped snap shoulder grooves of the carding portion are abutted on the respective corners of the pole, that is, the knob can be temporarily set Located above the positioning sleeve, when the knob is rotated in the reverse direction, the knobs are lifted longitudinally, that is, the respective shoulder grooves can be withdrawn from the end angles of the poles, and then the guide arcs are slipped along the end angles. The side edges of the end angles are abutted against the respective stop wall surfaces of the locking portion, and the rotating space of the knob is vertically displaced outwardly outside the pole.

Another object of the present invention is that the knob is provided with a matching hole for reducing the aperture on the side of the internal rotating space, and a positioning ring groove is formed in the wall of the matching hole, and a fixing ring for the abutting portion of the fixing rod is provided. The groove is embedded in the positioning ring groove, so that the abutting portion of the fixing rod is coupled into the mating hole of the knob, and the shaft portion of the fixing rod penetrates into the receiving space of the positioning sleeve, and is disposed on the shaft portion jacket. The elastic body, wherein the two sides of the elastic body respectively abut against the inner side of the shaft hole of the positioning sleeve and the top of the holding body, and the longitudinal displacement of the fixing rod in the accommodating space of the positioning sleeve through the knob is provided for fixing the rod The one-side retaining body longitudinally expands and contracts in and out of the accommodating space.

A further object of the present invention is that the fixing rod side abutting portion can be integrally formed on the outside of the abutting portion of the fixing rod by inserting an insert molding operation, and the knob can be plastic or rubber. The material of the fixing rod is positioned in the rotating space of the knob, and the holding body below the shaft portion extends out of the knob, and the shaft portion of the fixing rod first penetrates into the accommodating space of the positioning sleeve. And an elastic body is arranged on the shaft sleeve, so that the two sides of the elastic body respectively abut against the inner side of the shaft hole of the positioning sleeve and the top of the holding body, and the fixing rod can be driven to the receiving space of the positioning sleeve through the knob. The inner longitudinal displacement is for longitudinally expanding and retracting the support body of the fixing rod at the accommodating space of the positioning sleeve.

1‧‧‧ knob

10‧‧‧Swing space

11‧‧‧ docking holes

110‧‧‧ positioning ring groove

111‧‧‧Slip-stop

112‧‧‧ side cut

12‧‧‧Card Department

121‧‧‧Snap shoulder groove

122‧‧‧guide curved surface

123‧‧‧stop wall

2‧‧‧ positioning sleeve

20‧‧‧ accommodating space

201‧‧‧Axis hole

21‧‧‧ pole

211‧‧‧End angle

212‧‧‧ side wall

22‧‧‧Connecting Department

3‧‧‧Fixed rod

31‧‧‧Axis

311‧‧‧ Elastomers

32‧‧‧Docking Department

321‧‧‧Connecting column

322‧‧‧Positioning ring body

3220‧‧‧Connection hole

3221‧‧‧Culture crown

33‧‧‧ card holder

331‧‧‧stop section

332‧‧‧Card segment

4‧‧‧ first plate

40‧‧‧Positioning holes

5‧‧‧Second plate

50‧‧‧Carring shaft hole

A‧‧‧ positioning device

A1‧‧‧ outer sleeve

A11‧‧‧ concave arc

A2‧‧‧ inner sleeve

A21‧‧‧faced

A22‧‧‧

A23‧‧‧Perforation

A24‧‧‧Combination Department

A3‧‧‧Carmen

A31‧‧‧ rod body

A32‧‧ spring

A33‧‧‧Bump

A34‧‧‧ head

The first figure is a three-dimensional appearance of the present invention.

The second figure is a perspective exploded view of the present invention.

The third figure is an exploded perspective view of another direction of the present invention.

Figure 4 is a side cross-sectional view of the preferred embodiment of the present invention prior to rotation.

Figure 5 is a top cross-sectional view of the preferred embodiment of the present invention prior to rotation.

Figure 6 is a side cross-sectional view showing the preferred embodiment of the present invention after being rotated.

Figure 7 is a top cross-sectional view of the preferred embodiment of the present invention after being rotated.

Figure 8 is a perspective view of a preferred embodiment of the present invention.

The ninth diagram is an exploded perspective view of a conventional positioning device.

In order to achieve the above objects and effects, the technical means, the structure, the method of the implementation, and the like, which are used in the present invention, are described in detail in the preferred embodiments of the present invention.

Please refer to the first, second, third, fourth and fifth figures, which are the three-dimensional external view, the three-dimensional exploded view, the three-dimensional exploded view of the other direction, the side cross-sectional view before the rotation of the preferred embodiment, The top cross-sectional view of the preferred embodiment before the rotation, as is clear from the figure, the rotary fixing device of the present invention comprises a knob 1, a positioning sleeve 2 and a fixing rod 3, wherein: the knob 1 has an internal portion The rotating space 10 is penetrated, and the opposite side of the rotating space 10 is provided with a matching hole 11 for reducing the aperture, and a positioning ring groove 110 is recessed in the wall surface of the matching hole 11, and the outer surface of the knob 1 of the near butt hole 11 is provided. There is a non-slip portion 111. The outer circumferential surface of the knob 1 located below the anti-slip portion 111 is further provided with a plurality of longitudinal side cutting faces 112, and the rotating space 10 opposite to the mating hole 11 is provided with a polygonal shaped locking portion on the other side. 12, the locking portion 12 is provided with a plurality of snap-shaped shoulder grooves 121, and the side of each of the locking shoulder grooves 121 is connected A guiding curved surface 122 is disposed, and a stopping wall surface 123 is disposed between the adjacent guiding curved surface 122 and the adjacent adjacent locking shoulder groove 121, and each of the stopping wall surfaces 123 extends longitudinally upward to the rotating space 10 At the inner wall.

The positioning sleeve 2 has a polygonal pole 21 , and a plurality of end angles 211 and a plurality of side walls 212 are formed on the outside of the pole 21 , and the positioning sleeve 2 has a receiving space 20 therethrough and is disposed in the receiving space 20 . A shaft hole 201 having a reduced aperture is provided on one side, and an engagement portion 22 is provided on the other side.

The fixing rod 3 is provided with an elastic body 311 on the shaft portion 31, and an abutting portion 32 is connected to the shaft portion 31 side, and the abutting portion 32 is provided with a connecting post 321 connected to the shaft portion 31, and the connecting portion is used. The post 321 is disposed in the connecting hole 3220 of the positioning ring body 322, so that the positioning ring body 322 is positioned on the side of the shaft portion 31, and the reinforcing convex ring 3221 is protruded from the outer surface of the positioning ring body 322. The abutting portion 32 is connected to the other side of the shaft portion 31 with the holding body 33, and the retaining portion 33 is provided with an enlarged outer diameter stop segment 331 connected to the shaft portion 31 side, and then the stop portion 331 toward the shaft portion The outer side of the 31 is provided with a fastening section 332.

When the above-mentioned components are assembled in practical application, the swirling space 10 of the knob 1 can be covered on the outside of the positioning sleeve 2, and the clamping portion 12 on the side of the rotating space 10 of the knob 1 is placed on the column of the positioning sleeve 2 Each of the outer end angles 211 and the side walls 212 of the rod 21, and the plurality of side cut surfaces 112 of the outer portion of the knob 1 are respectively located on the side walls 212 of the positioning sleeve 2, and the positioning sleeve 2 penetrates the fixing rod in the accommodating space 20 3, the shaft portion 31 is located in the accommodating space 20 of the positioning sleeve 2, and the elastic body 311 side abuts against the inner side of the shaft hole 201, and the other side of the elastic body 311 abuts against the other side of the shaft portion 31. The body 33 is provided with the shaft portion 31 of the fixing rod 3 passing out of the shaft hole 201 of the positioning sleeve 2, and the abutting portion 32 can be assembled, and The positioning ring body 322 of the abutting portion 32 is inserted into the mating hole 11 of the knob 1 , and then the locking collar 3221 of the periphery of the positioning ring body 322 is inserted into the positioning ring groove 110 of the mating hole 11 for the abutting portion 32 to be fixed. At the docking hole 11, the knob 1 can be rotated in a single direction outside the positioning sleeve 2, and the locking portion 12 is clamped on the pole 21 of the positioning sleeve 2, and the knob 1 is reversely rotated. The pole 21 is disengaged, and the rotating type fixing device of the present invention can be constructed by the knob 1, the positioning sleeve 2 and the fixing rod 3.

Furthermore, the locking portion 12 on the side of the rotating space 10 of the knob 1 has a polygonal shape, and is provided with a plurality of consecutively adjacent snap-fit shoulder grooves 121 and guiding curved surfaces in the polygonal locking portion 12. 122 and the stop wall surface 123, and the outer pole 21 of the positioning sleeve 2 is opposite to the locking portion 12, and can be respectively formed into a polygonal shape such as a quadrangle, a pentagon or a hexagon. The locking portion 12 and the pole 21 of the preferred embodiment of the present invention can be designed in a hexagonal shape. The outer portion of the pole 21 of the positioning sleeve 2 has six adjacent side walls 212 adjacent to each side wall 212. The six end angles 211 and so on, and the locking portion 12 of the knob 1 includes six snap shoulder grooves 121, six guiding curved surfaces 122 on the side of the six snap shoulder grooves 121, and each buckle The shoulder groove 121 and the six stop wall surfaces 123 between the adjacent positions of the guide arc surfaces 122; the card portion 12 and the pole 21 of the preferred embodiment of the present invention have a hexagonal shape design and are available for the card portion 12 performing an operation of positioning displacement of about 30° left and right outside the pole 21 (this is a preferred embodiment of the invention, but is not limited to the invention The content or patent application range may be different according to the polygonal design of the opposite type between the locking portion 12 and the pole 21, and the left and right angles of the rotation of the knob 1 on the positioning sleeve 2 may also vary); 1 The sliding portion 111 disposed on the outer surface of the near butt hole 11 may be a plurality of grooves, a plurality of ridges, a plurality of ridges or a plurality of mesh lines having a slip preventing effect. The anti-slip portion 111 is not easily slipped and dropped when gripped.

And the fixing portion 3 side abutting portion 32 can be integrally formed on the outer side of the abutting portion 32 of the fixing rod 3 through an insert molding operation, and the knob 1 can be plastic or rubber. The material is provided, and the shaft portion 31 of the fixing rod 3 is located in the rotating space 10 of the knob 1 , and the holding body 33 below the shaft portion 31 extends outside the knob 1 , and the shaft portion 31 of the fixing rod 3 is inserted first. An elastic body 311 is disposed on the shaft portion 31 in the accommodating space 20 of the positioning sleeve 2, so that the two sides of the elastic body 311 respectively abut against the inner side of the shaft hole 201 of the positioning sleeve 2 and the retaining body 33. The top portion of the fixing rod 3 can be longitudinally extended and displaced in the accommodating space 20 of the positioning sleeve 2 through the knob 1 so that the holding body 33 of the fixing rod 3 can be longitudinally stretched and retracted at the accommodating space 20. In and out.

Please refer to the second, fourth, fifth, sixth, seventh and eighth figures, which are respectively an exploded perspective view of the present invention, a side cross-sectional view before the rotation of the preferred embodiment, and a front view of the preferred embodiment before the rotation. A cross-sectional view, a side cross-sectional view of the preferred embodiment after rotation, a top cross-sectional view after rotation of the preferred embodiment, and a perspective external view of the preferred embodiment, as is apparent from the drawings, the present invention is rotated When the fixing device is implemented in the actual application, the positioning sleeve 2 can be fixed to the positioning hole 40 of the preset first plate 4 by the connecting portion 22 at the bottom, and the inside of the knob 1 covered by the positioning sleeve 2 The fixing rod 3 is inserted into the fixing shaft hole 50 of the preset second plate 5 by the fastening portion 332 of the holding body 33 of the fixing rod 3 to pass through the knob 1, the positioning sleeve 2 and The fixing device composed of the fixing rod 3 can position and assemble the preset first plate 4 and the second plate 5; when the predetermined first plate 4 and the second plate 5 are separated, the outer surface of the knob 1 can be grasped. Stopping the sliding portion 111 and longitudinally lifting the knob 1 outside the positioning sleeve 2, and the knob 1 is At the same time, the fixing rod 3 is driven to move upward in the accommodating space 20 of the positioning sleeve 2, and the stopping portion 331 at the top of the holding body 33 of the fixing rod 3 presses the elastic body 311 upward toward the shaft hole of the positioning sleeve 2. 201 is compressed, and the locking portion 332 of the retaining body 33 is withdrawn from the fixing shaft hole 50 of the preset second plate 5, so that the retaining body 33 is retracted into the accommodating space 20 of the positioning sleeve 2, and the knob 1 The clamping portion 12 is raised to the periphery of the top end angle 211 of the positioning sleeve 2 and the periphery of the side wall 212, and the plurality of retaining wall surfaces 123 of the locking portion 12 abut against the side walls 212 of the positioning sleeve 2, The knob 1 is rotated in a single direction on the top of the positioning sleeve 2 (which may be counterclockwise or clockwise rotation, and the preferred embodiment of the present invention is performed in a counterclockwise direction, not limiting the mode of operation of the knob 1 of the present invention) in a single direction of about 30°. Counterclockwise rotation displacement (the locking portion 12 and the pole 21 of the preferred embodiment of the present invention have a hexagonal design, and the visible design of the visible card portion 12 and the pole 21 is different, and the rotational displacement angle also changes. Limiting the embodiment of the present invention), the plurality of arcing slots 122 of the locking portion 12 of the knob 1 are used. Each of the end angles 211 of the top of the positioning sleeve 2 is slidably raised, and the plurality of snap shoulder grooves 121 of the engaging portion 12 are respectively embedded above the end angles 211 so that the end angles 211 of the positioning sleeves 2 are respectively Each of the latching shoulder grooves 121 is formed into a stable clamping position, that is, the knob 1 is temporarily positioned above each end angle 211 of the positioning sleeve 2, and the plurality of side cutting surfaces 112 outside the knob 1 are also positioned respectively. The end angles 211 of the sleeve 2 are not shaken and detached by the external force, that is, the preset second plate 5 is separated from the preset first plate 4, and the plurality of side cutting faces 112 and the positioning sleeve can be transmitted through the outside of the knob 1. 2, the alignment manner of the external end angles 211, the bottom holding body 33 of the fixing rod 3 inside the knob 1 is located in the accommodating space 20 of the positioning sleeve 2; and the plurality of side cutting surfaces 112 outside the knob 1 and Positioning the side walls 212 outside the sleeve 2 to identify the bottom holding body 33 of the fixing rod 3 inside the knob 1 The outer side of the accommodating space 20 of the positioning sleeve 2 extends.

When the knob 1 is rotated at the top of the positioning sleeve 2, the sliding portion 111 outside the knob 1 must be grasped first, and the knob 1 is longitudinally lifted and pulled up, and then the locking portion 12 of the knob 1 is guided by a plurality of guides. The arcing surface 122 is slidably slid along the end angle 211 of the top of the positioning sleeve 2, so that the end angles 211 of the positioning sleeve 2 and the locking portion 12 of the knob 1 are prevented from being generated by the frictional friction, so that the end angles 211 are not caused. The wear between the locking portion 12 and the locking portion 12 can extend the service life of the knob 1 and the positioning sleeve 2.

If the preset first plate 4 is to be combined with the preset second plate 5, the fixing shaft hole 50 of the second plate 5 can be preset, and the positioning hole 40 of the preset first plate 4 can be positioned. The positioning sleeve 2 installed at the positioning hole 40 of the second plate 4 is preset, and the sliding portion 111 outside the knob 1 at the top of the positioning sleeve 2 is grasped, and then the knob 1 is lifted upward. Pulling up, and each of the locking shoulder grooves 123 of the locking portion 12 at the bottom of the knob 1 respectively exits the respective end angles 211 of the poles 21 of the positioning sleeve 2, and then rotates the knob 1 in the opposite direction (may be smooth The clockwise or counterclockwise rotation, the preferred embodiment of the present invention is performed in a clockwise direction, and is not limited to the mode of operation of the knob 1 of the present invention) a clockwise reverse rotational displacement of about 30° (the preferred portion of the carding portion 12 of the present invention) The pole 21 has a hexagonal design, and the visible locking portion 12 is different from the polygonal design of the pole 21, and the rotational displacement angle also changes, so that the embodiment of the present invention is not limited thereto, so that the knob 1 is clamped. The plurality of latching shoulder grooves 121 of the portion 12 and the respective end corners 211 of the top portion of the positioning sleeve 2 are dislocated, and the locking portion 12 is utilized. Each of the guiding curved surfaces 122 is rotated along each of the end angles 211 to the other side of each of the guiding curved surfaces 122, and is respectively abutted against the side wall 212 of the side of each end angle 211, and the outer surface of the knob 1 The side cutting faces 112 are also respectively aligned with the side walls 212 outside the pole 21, and are also internally fixed by the knob 1 The elastic body 311 of the shaft portion 31 of the fixed rod 3 is released, and the elastic restoring force of the elastic body 311 pushes the stop portion 331 of the retaining body 33 on the side of the shaft portion 31, so that the knob 1 can be linked along the positioning sleeve. The side walls 212 of the cylinder 2 are longitudinally descendingly displaced, and the knob 1 also drives the shaft portion 31 of the inner fixing rod 3 at the shaft hole 201 of the positioning sleeve 2 to perform longitudinal downward displacement, so that the fixing rod 3 side is stuck. The fixing section 332 of the holding body 33 extends out of the outer side of the engaging portion 22 of the positioning sleeve 2, and is inserted into the fixing shaft hole 50 of the preset second plate 5 by the fastening portion 332, so that the preset first plate can be 4, the second plate 5 is firmly combined, and the top surface of the rotating space 10 of the knob 1 also abuts against the top plane of the positioning sleeve 2, as for the side cutting surfaces 112 of the outer surface of the knob 1, that is, the outer portions of the opposing rods 21 respectively The side wall 212 (shown in Figures 1 and 4) covers the knob 1 over the outside of the post 21 of the positioning sleeve 2.

And the locking portion 12 at the bottom of the knob 1 is extended upward to the top of the rotating space 10 by the plurality of stop wall surfaces 123, and the knob 1 is not used for the positioning sleeve when the knob 1 is longitudinally moved up and down outside the positioning sleeve 2. The axial rotation of the cylinder 2 can avoid the frictional wear between the rotating space 10 of the knob 1 and the outer end angle 211 and the side wall 212 of the pole 21 of the positioning sleeve 2, and the ends of the pole 21 The corner 211, each side wall 212 or the wall surface of the rotary space 10 inside the knob 1 , that is, the friction damage does not occur, and the stability of the knob 1 when lifting and displacement outside the positioning sleeve 2 can be maintained, and the stability is not caused. The fixing rod 3 inside the knob 1 is offset, that is, the vertical displacement of the fixing rod 3 in the accommodating space 20 of the positioning sleeve 2 is vertical and vertical.

However, the above-mentioned rotary fixing device of the present invention is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, the equivalent structural changes of the present specification and the contents of the drawings are used. All of the same are included in the scope of the present invention. Chen Ming.

In summary, the above-mentioned rotary fixing device of the present invention can truly achieve its efficacy and purpose, so the invention is a practical and excellent research and development creation, which is in accordance with the application requirements of the invention patent, and submits an application according to law, and hopes that the trial committee The case will be granted as soon as possible to protect the inventor's hard work. If there is any doubt in the bureau, please do not hesitate to give instructions to the inventor, and the inventor will try his best to cooperate with him.

1‧‧‧ knob

10‧‧‧Swing space

11‧‧‧ docking holes

110‧‧‧ positioning ring groove

111‧‧‧Slip-stop

112‧‧‧ side cut

2‧‧‧ positioning sleeve

20‧‧‧ accommodating space

201‧‧‧Axis hole

21‧‧‧ pole

211‧‧‧End angle

212‧‧‧ side wall

22‧‧‧Connecting Department

3‧‧‧Fixed rod

31‧‧‧Axis

311‧‧‧ Elastomers

32‧‧‧Docking Department

321‧‧‧Connecting column

322‧‧‧Positioning ring body

3220‧‧‧Connection hole

3221‧‧‧Culture crown

33‧‧‧ card holder

331‧‧‧stop section

332‧‧‧Card segment

Claims (9)

The utility model relates to a rotary fixing device, which comprises a knob, a positioning sleeve and a fixing rod, wherein: the knob has a rotating space inside for the cover to cover the top of the positioning sleeve, and is provided on the side of the rotating space of the knob. The opposite side of the aperture is provided with a polygonal shaped portion having a plurality of stages; the positioning sleeve is provided with a receiving space for receiving the fixing rod, and a shaft for reducing the aperture is arranged on the unified side of the positioning sleeve. The hole pair is located in the butt hole of the knob, and the positioning sleeve of the opposite shaft hole is provided with an engaging portion on the other side, and the outer part of the positioning sleeve is provided with a polygonal pole for the card portion of the knob to be rotated or detached after being rotated; One side of the fixing rod is provided with an abutting portion located outside the shaft hole of the positioning sleeve and positioned in the mating hole of the knob, and a shaft portion penetrating into the accommodating space of the positioning sleeve is connected to one side of the abutting portion. The shaft sleeve is provided with an elastic body, and the other side is a holding body provided with a knob for driving the bottom of the accommodating space of the positioning sleeve to extend and retract. The rotary fixing device according to claim 1, wherein the knob is provided with a sliding portion for grasping on an outer side surface of the near butt hole, and the sliding portion can be a plurality of grooves, a plurality of ridges, and a plurality of ridges Or a plurality of mesh lines, and a plurality of longitudinal side cut surfaces are provided on the outer surface of the knob below the anti-slip portion. The rotary fixing device according to claim 1, wherein the locking portion of the inner side of the rotary space of the knob is provided with a plurality of shackle shoulder grooves of a step-like height difference, and adjacent shackle shoulder grooves One side of each of the polygonal poles of the guiding positioning sleeve is provided with a guiding arc surface which is axially rotated and displaced into the locking shoulder groove, and each guiding curved surface and the adjacent other side of the locking shoulder groove There is a stop wall surface for the side walls of the polygonal pole to abut. The rotary fixing device according to claim 3, wherein the locking portion of the knob on the side of the rotating space and the column of the positioning sleeve are in a polygonal shape of a relative shape, which are respectively a quadrangle, a pentagon, and a sixth. a polygonal shape or a plurality of polygonal shapes; the preferred embodiment is a hexagonal shape, and the positioning sleeve has six adjacent side walls outside the pole, six end angles between adjacent positions of the side walls, and the knob of the card The system includes six snap shoulder grooves, six guiding arc faces on the side of the six snap shoulder grooves, and each of the snap shoulder grooves, and six stop walls between adjacent positions of the guide arc faces. The hexagonal locking portion of the knob is rotated 30° to the left and right outside the hexagonal pole of the positioning sleeve, so that the locking shoulder grooves of the locking portion and the end angles of the pole are clamped. Or separate. The rotary fixing device according to claim 1, wherein the knob is provided with a concave positioning ring groove on the wall surface of the mating hole, and the outer edge of the abutting portion of the fixing rod is provided with a positioning ring embedded in the butting hole. A retaining collar in the slot. The rotary fixing device according to claim 1, wherein the polygonal locking portion of the locking portion on the side of the rotating space of the knob and the polygonal pole of the positioning sleeve are in a corresponding polygonal shape. Corresponding quadrilateral, pentagonal or hexagonal or various polygonal shapes. The rotary fixing device according to claim 1, wherein the positioning sleeve is provided on an outer side of the accommodating space with an engaging portion for positioning on the predetermined plate. The rotary fixing device according to claim 1, wherein the fixing rod is provided with an abutting portion on one side of the shaft portion, and the abutting portion includes a connecting column connected to the top of the fixing rod and assembled outside the connecting rod. Positioning the ring body, and the connecting ring body is provided with a connecting hole for the positioning of the connecting column, and a reinforcing convex ring is protruded on the outer ring surface of the positioning ring body, and the card with the enlarged rod diameter is arranged on the other side of the shaft portion. The retaining body includes a stop section connected to one side of the shaft portion and a retaining section extending outward from the stop section, and the two sides of the elastic body for the shaft portion are respectively abutted against the positioning sleeve The inside of the shaft hole and the top of the stop section. The rotary fixing device according to claim 1, wherein the fixing rod is provided with an abutting portion on one side of the shaft portion, and the fixing rod is integrally formed by inserting and injecting outside the one side abutting portion. The knob has a rotating space for receiving the shaft portion of the fixing rod, and the other side of the fixing rod extends outside the rotating space of the knob; and the knob is made of plastic or rubber.