TWI813016B - Push-type positioning device and its driving mechanism - Google Patents

Abstract

The invention relates to a push-type positioning device and its driving mechanism. The positioning device is provided with shaft rods with different rod diameters, limiting rods and limiting bodies on the shaft seat, which can be accommodated in the sleeve of the driving mechanism. The space and shaft hole are assembled and penetrated at the shaft rod, limit rod and limit body, and the pressing unit is movablely assembled in the accommodation space of the sleeve, and there is an inner chute at the bottom of the pressing unit for the limiting body and limit body. When the rod is moved and slid through, at least one side or more of one side of the inner chute is provided with a through hole penetrating outward and a positioning piece is penetrated, so that the positioning piece can move along the axial direction of the limiting body, that is, at least one Or at more than one through hole where the radial displacement is blocked or retreated from the limit rod, a reciprocating elastic part is provided between the bottom of the pressing unit and the accommodation space to reach the pressing drive mechanism and form a lock with the axis seat. or the purpose of separation.

Description

Push-type positioning device and its driving mechanism

The present invention provides a push-type positioning device and its driving mechanism. In particular, it refers to a positioning device and its driving mechanism that combines two plates by pressing. The shaft seat is assembled on a preset first plate, and then the sleeve of the driving mechanism is assembled. The second plate is preset, and the sleeve and pressing unit of the driving mechanism are assembled on the shaft base, and the purpose of positioning or separating the first and second plate is achieved by operating the pressing unit.

Generally speaking, many items in daily life use positioning mechanisms such as screws or latches to achieve the positioning effect during the back and forth movement. For example, items with telescopic structures such as drawers and cabinet panels use screws or bolts. The latch allows the slide rail and chute to move to a predetermined position, temporarily forming a position for the user to perform operations while the slide rail and chute are positioned and not moving; or such as desktop computers, notebook computers, industrial computers, Equipment assembled by multiple devices and mechanisms, such as work machines, will use screws or pins to position the plates in a stacked state, so that the casing of the mechanism is equipped with a plate that can be flexibly assembled and disassembled, or It allows multiple devices and mechanisms to be easily assembled or disassembled relative to each other.

Furthermore, except for the tips and threads of general screws and bolts, users may be injured if they accidentally touch them. Moreover, when disassembling various devices, mechanisms or plates, the screws or bolts must be disassembled as a whole. In use, We often encounter the problem of missing screws or bolts, and users If there are no spare screws and pins, the remaining screws or pins will be used for assembly, resulting in an unstable combination of the assembled mechanism and plates, which are easy to loosen and detach; it will also be placed on the ground after many screws or pins are removed. The problem is that the corresponding screws or pins cannot be successfully found for assembly and fixation in the same position; furthermore, when disassembling or assembling screws or pins, most of them require the use of hand tools (such as screwdrivers or wrenches, etc.). Different types of latches require users to prepare many hand tools, which often results in unsmooth assembly and disassembly operations. Due to the above problems and defects that continue to occur in actual use, the plates are stacked using screws or latches. There is an extremely inconvenient lack in positioning.

The applicant in this case submitted a new patent application for "Structural Improvement of Positioning Device" on November 9, 1999, with application number No. 99221678, and obtained the patent and announced it in the Patent Gazette on May 11, 2000. The certificate No. M402972, please refer to Figures 11 and 12. The positioning device has an accommodating groove A1 recessed on one side of the through hole A0 inside the base A, and uses the through hole A0 to position the positioning rod group B. The rod B1 is passed through, and the positioning rod B1 is provided with a penetration body B11 on one side. The outer edge of the positioning rod B1 near the penetration body B11 is protruding with a stop ring B12, and is extended from the stop ring B12 to the other side. There is a sliding rod body B13, and the outer edge of the sliding rod body B13 is cut along the axial direction with two opposite long edges B14, that is, a concave ring groove B15 is provided in the middle section of the sliding rod body B13, and another groove B15 is provided on the sliding rod body B13. The other side of the rod body B13 is provided with an internal screw hole B16 facing inward, and an elastic body B2 is provided around the sliding rod body B13 so that one side of the elastic body B2 can resist the stop ring B12 of the positioning rod B1, and the elastic body The other side of the body B2 is against the side of the limiting body B3, and the limiting body B3 is fixed in the receiving groove A1 of the base A, and a rectangular groove-shaped limiting hole B30 is provided inside the limiting body B3. , there are two opposite shrinking side edges B31 on the inside of the limiting hole B30, which can be used for the two long cutting edges B14 of the sliding rod body B13 of the positioning rod B1 to align with the two shrinking side edges B31 of the limiting body B3 for flexible and telescopic displacement. The internal screw hole B16 on the side of the sliding rod body B13 is used for the screw B on the side of the rod head B4. 41 is locked so that the rod head B4 is exposed outside the base A. The rod head B4 can be used to pull the positioning rod B1 to shrink into the through hole A0, so that the through-body B11 on one side of the positioning rod B1 shrinks into the through hole A0. , and the stop ring B12 pushes the elastic body B2 to compress the limiting body B3, allowing the sliding rod B13 to slide in the limiting hole B30 of the limiting body B3. When the concave ring groove B15 aligns with the limiting body At the B3 position, the club head B4 can be rotated to drive the positioning rod B1 to rotate, and the long cutting edges B14 on both sides of the sliding rod body B13 can be turned to stagger the contracted side edges B31 on both sides of the limiting body B3, so as to move the sliding rod The body B13 is held at the limiting body B3; and the club head B4 can be rotated to drive the sliding rod body B13 to rotate, so that the long cut edges B14 on both sides turn to the two shrinking side edges of the positioning limiting body B3. B31, and through the elastic restoring force of the elastic body B2, the positioning rod B1 can be pushed to move outside the through hole A0 of the base A, so that the penetrating body B11 on one side of the positioning rod B1 is exposed outside the base A.

However, the limiting body B3 of the previous case is fixed in the receiving groove A1 of the base A, and it is difficult to detect the space between the two contracted side edges B31 of the limiting body B3 and the two long cutting edges B14 of the sliding rod body B13. In the state of alignment or misalignment, when the rotating club head B4 rotates in conjunction with the positioning rod B1, it is necessary to identify the alignment of the two long cutting edges B14 of the sliding rod body B13 and the two contracted side edges B31 of the limiting body B3 according to the feel. , forming a blind spot during use, which is not conducive to the operation of the positioning device; and the positioning rod B1 is covered with an elastic body B2 on the outside of the sliding rod body B13, and the gripping rod head B4 rotates and links the sliding rod of the positioning rod B1 When the body B13 moves in the limiting hole B30 of the limiting body B3, it is affected by the resistance of the elastic body B2, which easily causes the positioning rod B1 to rock, yaw and other unstable states, and rotates the club head B4 to provide the sliding rod. When the two long side edges B14 of the body B13 are aligned with the two contracted side edges B31 of the limiting body B3, the elastic body B2 will push the positioning rod B1 out of the through hole A0 of the base A with rebound force, causing the caught The fingers holding the club head B4 suddenly jumped out of the grip, causing the club head B4 to hit the base A, directly colliding with the base A and the limiter B3. For a long time, it is more likely to cause the base A to skew, and also cause the positioning rod B1 to skew. It cannot be penetrated directly outside the base A. The positioning hole C0 located in the plate C is not conducive to the connection and fastening between the two plates C, which means that the fixing device has some shortcomings in practical applications.

Therefore, how to solve the problems and problems that are inconvenient in the application and operation of the current positioning device, as well as the troubles and deficiencies that are not conducive to assembly and positioning between two plates, are the directions that relevant manufacturers in this industry are eager to study and improve. By.

Therefore, in view of the above problems and deficiencies, the inventor collected relevant information, evaluated and considered many aspects, and used his many years of experience in this industry to design this push-type positioning device through continuous creation and modification. The inventor of the invention patent for its driving mechanism.

The main purpose of the present invention is that the positioning device is provided with shaft rods with different rod diameters, limiting rods and limiting bodies on the shaft seat, which can be used to assemble and penetrate the accommodation space and shaft hole in the sleeve of the driving mechanism. At the shaft, limit rod and limit body, the pressing unit is movablely assembled in the accommodation space of the sleeve, and there is an inner chute at the bottom of the pressing unit for the limit body and the limit rod to move and slide through. Then at least one side or more than one side of the inner chute is provided with a through hole penetrating outward and a positioning member is provided therethrough, so that the positioning member can move axially along the limiting body, that is, in at least one or more of the through holes. When the radial displacement clamps or retreats from the limit rod, a reciprocating elastic portion is provided between the bottom of the pressing unit and the accommodation space to achieve the purpose of pressing the driving mechanism and forming a lock or separation from the shaft base for The first and second plates are preset to be quickly aligned, locked or separated.

Another object of the present invention is that the bottom of the shaft base is provided with a base that can be fixed on the first positioning hole of the preset first plate, and shafts with different diameters and limits are sequentially protruding from the center of the top of the base. The rod and the limiter body, the rod diameter of the shaft is larger than the rod diameter of the limiter rod and the limiter body, and the outer diameter of the limiter body is larger than the rod diameter of the limiter rod, and is provided on the top side of the limiter rod. Tilt towards the limit rod The first guide slope of the extended limiting body is provided with a second guide slope on the other side of the limiting body and extends outward in a tapered manner relative to the first guide slope.

Another object of the present invention is that the pressing unit of the driving mechanism is assembled in the accommodation space of the sleeve, which includes a release key base, a pressing base, and a first elastic body and a second elastic body of the elastic part. There is a sliding space for the pressing seat to move through. The bottom edge can be resisted by one side of the first elastic body. There is a through hole penetrating outward on one side of the sliding space, and an inward shrinking and guiding hole on the other side. The guide slope for the movement of the positioning member has a sliding hole on the other side of the guide slope relative to the sliding space that reduces the aperture and limits the positioning member. The pressing body of the pressing seat penetrates the through hole of the sliding space, and the pressing body on one side The sliding body is movable and slidable in the sliding space and the sliding hole. The bottom surface of the sliding body is supported by one side of the second elastic body, and the adjacent positions of the pressing body and the sliding body are provided with resisting shoulders to resist the inside of the through hole. An inner chute is provided inside the pressing base for the sliding displacement of the limit body and the limit rod. At least two opposite sides of the inner chute are provided with through holes that penetrate transversely outwards, and each through hole is movablely equipped with A spherical positioning piece. Part of the volume of each positioning piece is exposed outside each through hole and slides along the sliding space, guide slope, and sliding hole, and moves in and out of the inner chute in a radial (i.e., horizontal and transverse) direction at each through hole. position, and slides in and out of the limit rod along the limit body, so that the driving mechanism and the shaft seat can form a stuck or disengaged state.

Another object of the present invention is that the outer edge of the bottom of the release key base is provided with a sleeve portion for one side of the first elastic body to be inserted and resisted, and the bottom surface of the accommodation space of the sleeve is provided with a first shoulder portion for the first elastic body The other side of the body is resisted, and a receiving groove with a reduced aperture is provided along the first shoulder to one side, and a second shoulder is provided on the inner edge of the receiving groove for the other side of the second elastic body to be resisted, and then the second elastic body is resisted on the other side. The shoulder is provided with a penetrating shaft hole on the other side for the shaft rod of the shaft seat to pass through.

Another object of the present invention is that the driving mechanism is provided with a fitting at the bottom of the sleeve The part can be fixed at the second positioning hole of the preset second plate, and the relative fitting part is provided with a resisting ring on the other side of the sleeve and protrudes toward the accommodation space.

1: Shaft seat

11:Base

111: docking department

12: Shaft

13:Limit rod

14: Limiting body

141: First guide slope

142: Second guide slope

2:Driving mechanism

21:Sleeve

210:accommodation space

211:Shaft hole

212:First shoulder

213: Accommodation tank

214:Second shoulder

22: Chimeric part

23: Resist the ring

3: Press unit

30:Inner chute

301:Through hole

31: Positioning parts

32: Elastic part

321:First elastomer

322: Second elastomer

33: Release the key base

330:Sliding space

331:Through hole

332:Guide slope

333:Sliding hole

334:Socket Department

335:Outer shoulder edge

34:Press seat

341: Pressing body

342: Sliding body

343: Resist shoulder

4: First plate

40: First positioning hole

5:Second plate

50: Second positioning hole

A: base

A0:Through hole

A1: Accommodation tank

B: Positioning rod group

B1: Positioning rod

B11: Penetrating body

B12: Stop ring

B13: Sliding rod body

B14: Long cut edge

B15: concave ring groove

B16: Internal thread hole

B2: Elastomer

B3: Limiting body

B30: Limit hole

B31: shrink side edge

B4: Club head

B41:Screw

C:Plate

C0: Positioning hole

[Figure 1] is a three-dimensional appearance view of the present invention.

[Figure 2] is an exploded perspective view of the present invention.

[Figure 3] is an exploded perspective view of another aspect of the present invention.

[Fig. 4] is a side cross-sectional view of the present invention.

[Figure 5] is a side cross-sectional view (1) of the present invention during the pressing action.

[Figure 6] is a side cross-sectional view (2) of the present invention during the pressing action.

[Figure 7] is a side cross-sectional view (3) of the present invention during the pressing action.

[Figure 8] is a side cross-sectional view after the pressing operation of the present invention.

[Figure 9] is a side cross-sectional view of the present invention when it is unlocked.

[Figure 10] is a side cross-sectional view of the present invention after unlocking.

[Figure 11] is an exploded three-dimensional view of a conventional fixing device.

[Fig. 12] is a side cross-sectional view of a conventional fixing device.

In order to achieve the above objects and effects, the technical means, structures, implementation methods, etc. used in the present invention are described in detail below for a complete understanding of the preferred embodiments of the present invention.

Please refer to Figures 1, 2, 3, and 4, which are a three-dimensional appearance view, a three-dimensional exploded view, a three-dimensional exploded view from another direction, and a side cross-sectional view of the present invention. It can be clearly seen from the figures. It can be seen that the push-type positioning device and its driving mechanism of the present invention include: the positioning device includes an axis seat 1 and a driving mechanism 2 assembled on the base 11. The axis seat 1 is located at the central position of the base 11 and is arranged in sequence. There is a shaft 12 and a limiting rod 13 with different rod diameters, and a limiting body 14 is provided on the other side of the limiting rod 13 relative to the shaft 12.

The driving mechanism 2 is assembled on the shaft seat 1, and the pressing unit 3 is movablely assembled at the sleeve 21, and the sleeve 21 has an inwardly concave accommodation space 210 for accommodating the pressing unit 3. The accommodating space 210 of the barrel 21 is provided with an axis hole 211 penetrating to the other side, which can accommodate the shaft rod 12 and the limiting rod 13 of the axis seat 1, and the bottom of the pressing unit 3 is provided with an inner chute 30 for limiting. The position body 14 and the limit rod 13 are movable and slidable, and are provided with an outward penetrating through hole 301 on at least one side or more than one side of the inner chute 30, and a ball is inserted into at least one or more through holes 301. The shape of the positioning member 31 can move axially up and down along the limiting body 14, that is, it can move radially in at least one or more through holes 301 and can be clamped or retreated from the limiting rod 13, pressing the bottom of the unit 3 A reciprocating elastic portion 32 is provided between the sleeve 21 and the internal accommodating space 210 .

The above-mentioned shaft seat 1 is provided with a base 11 at the bottom, and the base 11 is provided with a butt portion 111 at the bottom that can be fixed in the first positioning hole 40 of the preset first plate 4, and is sequentially protruding at the center position of the top of the base 11 The shaft rod 12, the limit rod 13 and the limit body 14 have different rod diameters. The rod diameter of the shaft rod 12 is larger than the rod diameters of the limit rod 13 and the limit body 14, and the outer diameter of the limit body 14 is larger than The rod diameter of the limit rod 13 is provided with a first guide slope 141 at the bottom of the limit body 14 that extends obliquely toward the limit rod 13, and a first guide slope 141 is provided at the top side of the limit rod 13 that extends obliquely toward the limit rod 13. The first guide slope of the limiting body 14 is provided with a second guide slope 142 on the other side of the limiting body 14 relative to the first guide slope 141 and extends outward in a tapered manner.

The above-mentioned driving mechanism 2 is a pressing unit 3 that can be assembled in the accommodation space 210 of the sleeve 21. The pressing unit 3 includes a release key base 33, a pressing base 34, and a first elastic part 32. The elastic body 321 and the second elastic body 322 are provided with a sliding space 330 inside the release key base 33 for the pressing base 34 to move through. The bottom edge can be used to resist one side of the first elastic body 321 and is located in the sliding space 330. One side is provided with a through hole 331 penetrating outward, and the other side is provided with a guide slope 332 that shrinks inward and guides the movement of the positioning member 31 . The relative sliding space 330 is provided with a reduced aperture on the other side of the guide slope 332 and is provided with the positioning member 31 There is a sliding hole 333 for limiting the position, and the pressing seat 34 is provided with a pressing body 341 that penetrates through the through hole 331 of the sliding space 330. A sliding body 342 is connected to one side of the pressing body 341 and moves within the sliding space 330 and the sliding hole 333. Sliding, the bottom surface of the sliding body 342 is resisted by one side of the second elastic body 322, and a resisting shoulder 343 is provided at the adjacent position of the pressing body 341 and the sliding body 342 to resist the inside of the through hole 331, and is on the pressing seat. 34 is provided with an inner chute 30 inside for the sliding displacement of the limiting body 14 and the limiting rod 13. At least two opposite sides of the inner chute 30 are respectively provided with through holes 301 that penetrate transversely outwards, and each through hole 301 moves separately. A spherical positioning member 31 is installed. Part of the sphere of each positioning member 31 is exposed outside each through hole 301 and slides along the sliding space 330, the guide slope 332 and the sliding hole 333 to form a radial movement at each through hole 301. (i.e. horizontal and transverse) displacement in and out of the inner chute 30, and sliding displacement in and out of the limit rod 13 along the second guide slope 142 and first guide slope 141 of the limit body 14 for the driving mechanism 2 and the shaft seat 1 It can form a stuck or detached state.

In addition, the above-mentioned release button base 33 is provided with a socket portion 334 on the bottom outer edge thereof, so that one side of the first elastic body 321 can be inserted into the socket portion 334 to form a resistance, and the bottom surface of the accommodation space 210 of the sleeve 21 is provided with a socket portion 334 . The first shoulder 212 is for the other side of the first elastic body 321 to resist, and a receiving groove 213 with a reduced diameter is provided along the first shoulder 212 to one side, and a second shoulder 214 is provided on the inner edge of the receiving groove 213 The other side of the second elastic body 322 is used to resist, and a penetrating shaft hole 211 is provided on the other side of the second shoulder 214 for the shaft 12 of the shaft seat 1 to pass through.

Moreover, the above-mentioned driving mechanism 2 is provided with a fitting portion 22 at the bottom of the sleeve 21 and can be fixed in a predetermined position. The second positioning hole 50 of the second plate 5 is provided. The relative fitting portion 22 is provided with a resisting ring 23 on the other side of the sleeve 21 and protrudes toward the accommodation space, and is provided outside the release key base 33 of the pressing unit 3. The outer shoulder edge 335 can form a limit against the resisting ring edge 23 to prevent the release key base 33 from leaving the accommodating space 210 of the sleeve 21, so that the pressing unit 3 is located in the accommodating space 210 of the sleeve 21. Activity lifting and displacement.

Please refer to Figures 2, 3, 4, 5, 6, 7, 8, 9, and 10, which are three-dimensional exploded views of the present invention, a three-dimensional exploded view from another direction, a side cross-sectional view, and a pressing action. Side view sectional view (1), side view sectional view during pressing action (2), side view sectional view during pressing action (3), side view sectional view after pressing action, side view sectional view when unlocking, unlocking From the side cross-sectional view shown in the figure, it can be clearly seen that when the push-type positioning device and its driving mechanism of the present invention are actually used, the base 11 of the axis seat 1 is fixed on the predetermined position with the docking portion 111. The first positioning hole 40 of the first plate 4, and the sleeve 21 of the driving mechanism 2 is fixed at the second positioning hole 50 of the preset second plate 5 with the fitting portion 22, so that the preset second plate can be 5. The driving mechanism 2 and the pressing unit 3 simultaneously move to above the preset first plate 4 and the axle seat 1, and use the shaft hole 211 of the sleeve 21 to align with the limiting body 14, the limiting rod 13, and the axle seat 1. The shaft 12 is used for the limiting body 14, the limiting rod 13, and the shaft 12 to penetrate into the accommodation space 210 from the shaft hole 211 of the sleeve 21, and then penetrate into the sliding hole 333 of the release key base 33 and the pressing seat. The chute 30 within 34 can be used to quickly align the preset second plate 5 with the preset first plate 4, that is, apply force to press the preset second plate 5 to the preset first plate 4, and then press it. The pressing body 341 of the unit 3 applies force to press the pressing base 34 longitudinally downward along the sliding space 330 of the release key base 33, and the inner slide groove 30 in the pressing base 34 moves along the limiting body 14 and the limiting member 34. The position rod 13 slides downward, and when the spheres of each positioning member 31 at the through holes 301 on both sides of the inner slide groove 30 slide along the second guide slope 142 of the limiting body 14, the other sides respectively abut against the release key seats. The guide slope 332 of 33 slides, and provides each positioning member 31 with Do not cross the second guide slope 142 and enter the first guide slope 141. At the same time, apply force on the pressing body 341 to allow each positioning member 31 to slide along the guide slope 332 into the sliding hole 333 of the reduced aperture, and make each positioning member 31 Being pushed radially by the sliding hole 333, each positioning member 31 slides along the first guide slope 141 and displaces laterally against the outer edge of the limiting rod 13. At this time, the release key base 33 is pressed by the first The elastic body 321 is pushed to the outside of the accommodation space 210 of the sleeve 21 , and the outer shoulder edge 335 abuts the resisting ring 23 at the top of the accommodation space 210 , and the pressing body 341 of the pressing base 34 is submerged. The through hole 331 enters the sliding space 330, and each positioning member 31 is locked at the limiting rod 13 and the sliding hole 333 to form a locked position. Then the key base 33 is released to press the first elastic body 321 of the elastic part 32. The pressing seat 34 presses the second elastic body 322 to achieve the purpose of pressing the driving mechanism 2 and forming a lock with the shaft seat 1, so that the second plate 5 can be positioned on the first plate 4.

If you want to separate the preset second plate 5 from the preset first plate 4, you can apply force to the top of the release key base 33 so that the release key base 33 moves downward into the accommodation space 210 of the sleeve 21. The internal sliding hole 333 of the release key base 33 is moved downward along the sliding body 342, and the internal guide slope 332 of the release key base 33 is allowed to slide to the outside of each positioning member 31, thereby releasing the force exerted on the release key base 33. The elastic restoring force of the first elastic body 321 of the elastic part 32 pushes the release key base 33 , and the elastic restoring force of the second elastic body 322 pushes the pressing base 34 , so that each positioning member 31 can move along the first position of the limiting body 14 . The first guide slope 141 is radially displaced to the opposite side, and slides along the second guide slope 142 and the guide slope 332 into the sliding space 330. Each positioning member 31 retreats from the limit rod 13 and moves to the top of the limit body 14, and is provided with The pressing body 341 of the pressing base 34 extends out of the through hole 331 of the release key base 33, so that the driving mechanism 2 is separated from the shaft base 1, and the preset second plate 5, the driving mechanism 2, and the pressing unit 3 can be removed from the shaft base. 1. The preset first plate 4 is taken out and separated to achieve the purpose of conveniently separating the preset second plate 5 from the preset first plate 4 .

The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Therefore, any simple modifications and equivalent structural changes made by using the contents of the description and drawings of the present invention should be included in the same This invention is within the scope of the patent and shall be clarified.

To sum up, the above-mentioned push-type positioning device and its driving mechanism of the present invention can indeed achieve its effect and purpose when used. Therefore, the present invention is a creation with excellent practicality and meets the application requirements for an invention patent. I have filed an application in accordance with the law and hope that the review committee will approve this case as soon as possible to protect the inventor's hard work. If the review committee of the Jun Bureau has any doubts, please feel free to write a letter for instructions. The inventor will try his best to cooperate and I will truly appreciate it.

1: Shaft seat

11:Base

111: docking department

12: Shaft

13:Limit rod

14: Limiting body

141: First guide slope

142: Second guide slope

2:Driving mechanism

21:Sleeve

210:accommodation space

22: Chimeric part

23: Resist the ring

3: Press unit

301:Through hole

31: Positioning parts

32: Elastic part

321:First elastomer

322: Second elastomer

33: Release the key base

330:Sliding space

331:Through hole

334:Socket Department

335:Outer shoulder edge

34:Press seat

341: Pressing body

342: Sliding body

343: Resist shoulder

Claims (8)

A push-type positioning device includes an axle seat and a driving mechanism. The axle seat is provided with a shaft rod and a limit rod with different rod diameters, and a limit body is provided on the other side of the limit rod relative to the shaft rod. ; and the driving mechanism is assembled on the axle seat, and includes the shaft rod passed through the axle seat, a sleeve on the limit rod, and a pressing unit movably assembled in the sleeve. The inside of the sleeve There is an accommodating space for accommodating the pressing unit, and a through-axis hole for the shaft rod and the limiting rod to pass through is provided in the accommodating space, and the bottom of the pressing unit is provided with a through-axis hole for the limiting body and the limiting rod to pass through. The inner chute within which the limit rod moves movablely is provided with an outward penetrating through hole on at least one side or more than one side of the inner chute. The body moves axially, that is, the radial displacement in at least one or more through holes blocks or retreats from the positioning member of the limiting rod. There is a reciprocating displacement between the bottom of the pressing unit and the accommodation space. The elastic part, the driving mechanism is provided with a fitting part fixed on the preset second plate at the bottom of the sleeve, and a resisting ring protruding toward the accommodation space is provided on the other side of the sleeve relative to the fitting part. fate. The push-type positioning device as described in claim 1, wherein the bottom of the axis seat is provided with a base fixed on the preset first plate, and the top of the base is protruding in sequence with the shaft, the limit rod and the Limiting body. The push-type positioning device as described in claim 2, wherein the shaft, the limit rod and the limit body with different rod diameters are protruding from the top of the base portion at the central position, and the rod diameter of the shaft is larger than the rod diameter. The limit rod and the rod diameter of the limit body, and the outer diameter of the limit body is larger than the rod diameter of the limit rod, and there is a top side of the limit rod that extends obliquely toward the limit rod. The first guide slope of the limiting body is provided with an outwardly tapering extension on the other side of the limiting body relative to the first guide slope. Extend the second inclined plane. The push-type positioning device as claimed in claim 1, wherein the push unit assembled by the driving mechanism in the accommodation space of the sleeve includes a release key base, a push base, a first elastic body of the elastic part, and a second elastic body. Elastomer, the release key base is provided with a sliding space inside for the push seat to move through, a bottom edge for one side of the first elastic body to resist, and a through hole penetrating outward on one side of the sliding space. . There is a guide slope on the other side that shrinks inward and guides the positioning member to move. Relative to the sliding space, there is a sliding hole on the other side of the guide slope that reduces the aperture and limits the positioning member. The pressing seat is provided with There is a pressing body that penetrates the through hole of the sliding space. One side of the pressing body is provided with a sliding body that is movable and sliding in the sliding space and the sliding hole. The bottom surface of the sliding body is for the second elastic body. One side is resisted, and the adjacent positions of the pressing body and the sliding body are provided with resisting shoulders that resist the inside of the through hole, and there is a resisting shoulder inside the pressing base for the sliding body and the limiting rod. When the inner chute is displaced, at least two opposite sides of the inner chute are respectively provided with through holes that penetrate laterally outward. Each of the through holes is movably installed with the positioning member, and each of the positioning members is formed into a ball. shape. The push-type positioning device according to claim 4, wherein the outer edge of the bottom of the release key base is provided with a socket portion for one side of the first elastic body to resist, and the bottom surface of the accommodation space inside the sleeve is provided with a socket portion for the first elastic body to resist. The other side of the first elastic body resists the first shoulder, and a receiving groove with a reduced aperture is provided along the first shoulder to one side, and the inner edge of the receiving groove is provided with a space for the other side of the second elastic body. The resisting second shoulder is provided with a through-shaped shaft hole on the other side for the shaft rod of the shaft seat to pass through; part of the volume of the positioning member exposes the outer edge of each of the through holes. The sliding space, the guide slope, and the sliding hole are slidingly displaced, and each through hole is radially (i.e., horizontally) displaced in and out of the inner slide groove, and is slid in and out of the limiting body. Limit The rod is stuck or detached. A driving mechanism of a push-type positioning device. The driving mechanism includes a sleeve and a pressing unit. The driving mechanism includes a sleeve with an accommodation space. The accommodation space is provided with an axis hole penetrating to the other side. The driving mechanism is provided with a fitting portion fixed on the preset second plate at the bottom of the sleeve, and a resisting ring protruding toward the accommodation space is provided on the other side of the sleeve relative to the fitting portion; the pressing The unit is movably assembled in the accommodating space of the sleeve, and an elastic part for reciprocating displacement is provided between the bottom of the pressing unit and the accommodating space, and the bottom of the pressing unit has an inwardly concave inner chute. And at least one side or more than one side of the inner chute is provided with a through hole penetrating outward, and a positioning member that is capable of radial displacement to lock or retreat is provided in at least one or more through holes. The driving mechanism of the push-type positioning device according to claim 6, wherein the pressing unit assembled in the accommodating space of the sleeve by the driving mechanism includes a release key base, a pressing base, a first elastic body of an elastic part, and The second elastic body has a sliding space inside the release key base for the pressing base to move through, a bottom edge for one side of the first elastic body to resist, and an outward penetrating hole on one side of the sliding space. The through hole and the other side are provided with a guide slope that shrinks inward and guides the movement of the positioning member. Relative to the sliding space, a sliding hole is provided on the other side of the guide slope that reduces the aperture and limits the positioning member, and the pressing seat is provided with There is a pressing body that penetrates the through hole of the sliding space. One side of the pressing body is provided with a sliding body that is movable and sliding in the sliding space and the sliding hole. The bottom surface of the sliding body is for the second elastic body. One side is resisted, and the adjacent positions of the pressing body and the sliding body are provided with resisting shoulders that resist the inside of the through hole, then at least two opposite sides of the inner slide groove are respectively provided with transverse outward penetrating Through holes, each through hole is divided into Each positioning piece of the special movable device is formed into a ball shape. The driving mechanism of the push-type positioning device according to claim 7, wherein the outer edge of the bottom of the release key base is provided with a socket portion for one side of the first elastic body to resist, and the bottom surface of the accommodation space inside the sleeve is provided with The first shoulder for the other side of the first elastic body to resist, and a receiving groove with a reduced aperture is provided along the first shoulder to one side, then the inner edge of the receiving groove is provided with a receiving groove for the second elastic body The second shoulder resisting on the other side is provided with a penetrating shaft hole on the other side for the shaft rod of the shaft seat to pass through; part of the volume of the positioning member exposes each of the through holes. The outside slides and displaces along the sliding space, the guide slope and the sliding hole, and moves in and out of the inner chute in a radial (i.e. horizontal and transverse) direction at each through hole, and slides in and out along the limiting body. The limiting rod is jammed or detached.

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