阅读说明：本技术 一种装配式预制构件的对中装置 (Assembled prefabricated component's centering device ) 是由 舒宝成 程维国 袁江斌 于健 李福健 许堃 彭小兵 李杨 尹君 林天强 赵静文 于 2021-09-09 设计创作，主要内容包括：本发明涉及一种装配式预制构件的对中装置,属于预制构件装配领域。一种装配式预制构件的对中装置,包括上对中机构、及用于与上对中机构配合对中的下对中机构。上对中机构包括第一直角底座,其上形成平台结构,用于支撑上对中机构的其余部分；第一槽孔形成于第一直角底座上,用于定位件贯穿；下对中机构包括第二直角底座,用于支撑下对中机构的其余部分；第二槽孔形成于第二直角底座上,用于定位件贯穿；定位件同时贯穿第一槽孔和第二槽孔,实现下对中机构与上对中机构的整体定位。本发明在预制顶板上设置活动定位销,并在立柱上设置锥形定位孔,采用孔销配合实现预制顶板在立柱上的快速定位,解决了现有技术中存在的定位难的问题。(The invention relates to a centering device for an assembly type prefabricated part, and belongs to the field of prefabricated part assembly. The utility model provides a centering device of assembled prefabricated component, includes centering mechanism, and is used for centering with the lower centering mechanism of last centering mechanism cooperation. The upper centering mechanism comprises a first right-angle base, a platform structure is formed on the first right-angle base, and the platform structure is used for supporting the rest part of the upper centering mechanism; the first slotted hole is formed on the first right-angle base and used for the positioning piece to penetrate through; the lower centering mechanism comprises a second right-angle base used for supporting the rest part of the lower centering mechanism; the second slot is formed on the second right-angle base and used for the positioning piece to penetrate through; the positioning piece penetrates through the first slotted hole and the second slotted hole simultaneously, and the integral positioning of the lower centering mechanism and the upper centering mechanism is realized. According to the invention, the movable positioning pin is arranged on the prefabricated top plate, the conical positioning hole is arranged on the upright post, and the hole pin is adopted to be matched to realize the rapid positioning of the prefabricated top plate on the upright post, so that the problem of difficult positioning in the prior art is solved.)

1. The utility model provides an assembled prefabricated component's centering device, includes centering mechanism and is used for centering mechanism cooperation down with last centering mechanism, its characterized in that:

the upper centering mechanism comprises

A first right-angle base (4) on which a platform structure is formed for supporting the rest of the upper centering mechanism;

the first slotted hole (7) is formed on the first right-angle base (4) and is used for the penetration of the positioning piece;

the lower centering mechanism comprises

A second right-angle base (10) on which a platform structure is formed for supporting the rest of the lower centering mechanism;

the second slotted hole (12) is formed on the second right-angle base (10) and is used for the penetration of the positioning piece;

the positioning piece penetrates through the first slotted hole (7) and the second slotted hole (12) simultaneously, and the integral positioning of the lower centering mechanism and the upper centering mechanism is realized.

2. The centering device of prefabricated parts according to claim 1, wherein:

the first slotted hole (7) is a waist-shaped hole; the second slot hole (12) is a waist-shaped hole, and the extending direction of the second slot hole (12) is vertical to the extending direction of the first slot hole (7);

the first straight-angle base (4) is provided with a first conical sliding seat (5), and the first conical sliding seat (5) can slide along the length direction of a first slotted hole (7) and is fixed at any position of the first slotted hole (7);

and a second conical sliding seat (11) is arranged on the second right-angle base (10), and the second conical sliding seat (11) can slide along the length direction of the second slotted hole (12) and is fixed at any position of the first slotted hole (7).

3. The centering device of prefabricated parts according to claim 1, wherein:

the first slotted hole (7) is a round or square hole;

the first right-angle base (4) is sequentially provided with a middle sliding seat (22) and a first conical sliding seat (5) from bottom to top; a slotted hole (24) is formed in the middle sliding seat (22), and the width of the slotted hole (24) is smaller than the diameter of the first slotted hole (7), so that allowance is reserved for the movement of the first conical sliding seat (5) along the width direction of the slotted hole (24); the inner diameter of the first conical sliding seat (5) is matched with the inner diameter of the positioning piece.

4. The centering device of prefabricated parts according to claim 1, wherein:

the second slotted hole (12) is a round or square hole;

the second right-angle base (10) is sequentially provided with a middle sliding seat (22) and a second conical sliding seat (11); a slotted hole (24) is formed in the middle sliding seat (22), and the width of the slotted hole (24) is smaller than the diameter of the second slotted hole (12), so that allowance is reserved for the movement of the second conical sliding seat (11) along the width direction of the slotted hole (24); the second conical sliding seat (11) is provided with a conical positioning hole which extends downwards and extends through the middle sliding seat (22) and is used for matching with the positioning pin.

5. The centering device of prefabricated parts according to claim 1, wherein:

the positioning piece is a positioning pin (6);

a first conical sliding seat (5) is arranged on the first right-angle base (4); a through hole for a positioning pin (6) to pass through is formed on the first conical sliding seat (5); the first conical sliding seat (5) is driven by the screw positioning mechanism to be adjusted and fixed in position so as to realize accurate positioning of the positioning pin and the lower centering mechanism.

6. The centering device of prefabricated parts according to claim 5, wherein:

a plurality of pin holes (20) are arranged on the positioning pin (6);

the first conical sliding seat (5) is provided with an insertion hole (21), the insertion hole (21) is used for being correspondingly matched with the pin hole (20), the insertion hole (21) is matched with the pin holes (20) in different positions through a lock pin, and the positioning depth of the positioning pin (6) is adjusted and fixed.

7. The centering device of prefabricated parts according to claim 1, wherein:

and a second conical sliding seat (11) is arranged on the second right-angle base (10), and a conical positioning hole (14) which is matched with the positioning piece and guides the positioning pin (6) is formed on the second conical sliding seat.

8. The centering device of prefabricated parts according to claim 7, wherein:

the second conical sliding seat (11) is driven by a screw positioning mechanism to adjust the position on the second right-angle base (10) and fix the position so as to realize accurate positioning of the positioning pin and the conical positioning hole (14).

9. The centering device of prefabricated parts according to any one of claims 5 or 8, wherein:

the screw positioning mechanism comprises a support (17), and one side surface of the support (17) penetrates through the adjusting screw rod (15) in a threaded screwing mode; the action end of the adjusting screw rod (15) is a ball head (18), and the ball head (18) is connected with a ball hinge pair of a ball hinge support (19) preset on the positioned part.

10. The centering device of an assembled prefabricated part according to claim 9, wherein:

the screw positioning mechanisms arranged on the first right-angle base (4) or the second right-angle base (10) are divided into two groups, and the action directions are vertical, so that the position in a horizontal plane can be adjusted cooperatively.

Technical Field

The invention relates to the field of assembly positioning equipment, in particular to a centering device for an assembly type prefabricated part.

Background

When the prefabricated top plate and the stand column are assembled in the subway station, the prefabricated top plate is heavy and large in size, and the position of the prefabricated top plate is difficult to accurately control in the suspension process, so that the prefabricated top plate and the stand column cannot be centered.

Specifically, the existing construction scheme is that a gantry crane is adopted to directly hoist two groups of butted top plates, mortises at the non-adjacent end parts of the two groups of top plates are matched and joggled with tenons at the top ends of two groups of stand columns respectively, and then slurry is filled in gaps between the tenons and the mortises. Because the length of the top plates after butt joint is longer, the top plates can deform after hoisting, and the center distance of the mortises on the two groups of top plates can be reduced and is smaller than the center distance of the tenons on the two groups of upright posts. After the center distance of the mortises on the two groups of top plates is reduced, when the top plates are close to the stand columns, the positions of the mortises on the top plates, relative to the tenons on the stand columns, are shifted, so that the positions of the mortises and the tenons in the left and right directions (along the length direction of the top plates) cannot be centered and cannot be matched with joggling. And when the mortise and the tenon are matched, the centering is difficult to ensure at the front and back (along the thickness direction of the top plate) positions of the mortise and the tenon due to the low accuracy of the hoisting control position.

Disclosure of Invention

1. Problems to be solved

Aiming at the problems that the alignment error of the prefabricated top plate and the upright post is large and the alignment is difficult in the prior art, the invention provides the alignment device of the prefabricated component.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a centering device of assembled prefabricated component, includes centering mechanism, and is used for centering with the lower centering mechanism of last centering mechanism cooperation.

Go up centering mechanism includes:

the first right-angle base is provided with a platform structure for supporting the rest part of the upper centering mechanism;

the first slotted hole is formed on the first right-angle base and used for the positioning piece to penetrate through;

the lower centering mechanism comprises:

the second right-angle base is provided with a platform structure for supporting the rest part of the lower centering mechanism;

the second slot is formed on the second right-angle base and used for the positioning piece to penetrate through;

and the positioning piece simultaneously penetrates through the first slotted hole and the second slotted hole, so that the lower centering mechanism and the upper centering mechanism are integrally positioned.

As another preferable scheme, the first slot hole is a kidney-shaped hole; the second slotted hole is a waist-shaped hole, and the extending direction of the second slotted hole is vertical to the extending direction of the first slotted hole;

the first straight-angle base is provided with a first conical sliding seat, and the first conical sliding seat can slide along the length direction of the first slotted hole and is fixed at any position of the first slotted hole;

and a second conical sliding seat is arranged on the second right-angle base, can slide along the length direction of the second slotted hole and is fixed at any position of the first slotted hole.

As another preferable scheme, the first slot hole is a circular or square hole;

the first right-angle base is sequentially provided with a middle sliding seat and a first conical sliding seat from bottom to top; a slotted hole is formed in the middle sliding seat, and the width of the slotted hole is smaller than the diameter of the first slotted hole so as to reserve allowance for the movement of the first conical sliding seat along the width direction of the slotted hole; the inner diameter of the first conical sliding seat is matched with the inner diameter of the positioning piece.

As another preferable scheme, the second slot hole is a circular or square hole;

the second right-angle base is sequentially provided with a middle sliding seat and a second conical sliding seat; a slotted hole is formed in the middle sliding seat, and the width of the slotted hole is smaller than the diameter of the second slotted hole so as to reserve allowance for the movement of the second conical sliding seat along the width direction of the slotted hole; the second conical sliding seat is provided with a conical positioning hole which extends downwards and extends through the middle sliding seat and is used for being matched with the positioning pin.

As another preferred scheme, the positioning piece is a positioning pin;

a first conical sliding seat is arranged on the first right-angle base; a through hole for the positioning pin to pass through is formed in the first conical sliding seat; the first conical sliding seat is driven by the screw positioning mechanism to be adjusted and fixed in position so as to realize accurate positioning of the positioning pin and the lower centering mechanism.

As another preferable scheme, a plurality of pin holes are arranged on the positioning pin;

the first conical sliding seat is provided with a jack, the jack is used for being matched with the pin hole correspondingly, the jack is matched with the pin holes in different positions through the lock pin, and the positioning depth of the positioning pin is adjusted and fixed.

As another preferable scheme, a second conical sliding seat is arranged on the second right-angle base, and a conical positioning hole which is matched with the positioning piece and guides the positioning pin is formed on the second conical sliding seat.

As another preferable scheme, the second conical sliding seat is driven by the screw positioning mechanism to adjust and fix the position on the second right-angle base, so as to realize the accurate positioning of the positioning pin and the conical positioning hole.

As another preferred scheme, the screw positioning mechanism comprises a bracket, and an adjusting screw rod penetrates through one side surface of the bracket in a threaded screwing mode; the action end of the adjusting screw rod is a ball head, and the ball head is connected with a ball hinge pair of a ball hinge support preset on the positioned piece.

As another preferable scheme, the screw positioning mechanisms arranged on the first right-angle base or the second right-angle base are divided into two groups, and the action directions are vertical, so that the position in the horizontal plane is adjusted cooperatively.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, the movable positioning pin is arranged on the prefabricated top plate, the conical positioning hole is arranged on the upright post, and the hole pin is adopted to be matched to realize the rapid positioning of the prefabricated top plate on the upright post, so that the problem of difficult positioning in the prior art is solved.

(2) The positioning pin installed on the prefabricated top plate slides along the X direction, the conical positioning hole installed on the stand column slides along the Y direction, a complex plane positioning system is decomposed into two subsections, the complexity of the whole adjusting system is reduced, the flexible adjustment of the position of the positioning pin in the horizontal plane is realized by adjusting the control subsections with different dimensions, and the flexible positioning between the prefabricated top plate and the stand column is met.

(3) When the space allows, preferably, only the positioning pin is fixed on the first right-angle base, and the positioning hole horizontal positioning adjusting system is arranged on the second right-angle base connected with the upright. The upright post is a fixed unit, and the operation and the adjustment are convenient. The first right-angle base is installed on a suspended and floating prefabricated top plate, and is inconvenient to adjust, and the problem that the adjusting system is inconvenient to operate in the case can be solved by the method.

(4) For lightweight or compact prefabricated roofs or similar structures, either with limited column space or with high column positions, it is preferred to provide the dowel pin horizontal positioning adjustment system on the prefabricated roof. The position of the positioning pin is adjusted in advance, so that the conical positioning hole is accurately matched in the hoisting process, and the rapid positioning and installation of the prefabricated top plate and the stand column are realized.

Drawings

FIG. 1 is a left side elevational view of the top panel of the present invention assembled with a vertical column;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a top view of the combination of the first right angle base and the first conical slider of the present invention;

FIG. 4 is a front elevational view of a first conical slide of the present invention;

FIG. 5 is a top view of the second right angle base and second conical slide of the present invention;

FIG. 6 is a schematic structural view of a first screw positioning mechanism of the present invention;

FIG. 7 is a second right angle base mounting structure of the second embodiment of the present invention;

fig. 8 is a schematic view of a first right-angle base assembly structure according to a third embodiment of the present invention.

In the figure:

1. a top plate; 2. a column; 3. an internal thread sleeve; 4. a first right-angle base; 5. a first conical slide;

6. positioning pins; 7. a first slot; 8. an X-direction guide groove; 9. a through hole; 10. a second right angle base;

11. a second conical slide; 12. a second slot; 13. a Y-direction guide groove; 14. a conical positioning hole; 15. adjusting the screw rod;

16. a nut seat; 17. a support; 18. a ball head; 19. a spherical hinge support; 20. a pin hole;

21. a jack; 22. a middle sliding seat; 23. a circular hole; 24. a slotted hole; 25. a guide groove.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the embodiment.

Example 1

As shown in fig. 1 to 5, the centering device for the prefabricated components comprises an upper centering mechanism, a lower centering mechanism and an internal thread sleeve 3 pre-embedded at the end sides of a top plate 1 and a stand column 2.

The upper centering mechanisms are two groups, are respectively arranged at the non-adjacent ends of the two groups of butted top plates 1, and comprise a first right-angle base 4, a first conical sliding seat 5, a positioning pin 6 and a first screw rod positioning mechanism. The vertical connecting plate of a lateral part of the first right-angle base 4 is connected with the internal thread sleeve 3 pre-buried on the top plate 1 through a bolt, and the first right-angle base 4 is fixed on the lateral surface of the top plate 1. A horizontal part of the first base 1 is provided with a first slotted hole 7, and two sides of the first slotted hole 7 are symmetrically provided with X-direction guide grooves 8. The extending direction of the X-direction guide groove 8 is the same as that of the first slotted hole 7. The middle part of the first conical sliding seat 5 is inserted into the first slotted hole 7, is connected with the X-direction guide groove 8 in a sliding way, and is limited by the X-direction guide groove 8. The middle part of the first conical sliding seat 5 is provided with an axial vertical through hole 9, and the positioning pin 6 is inserted into the through hole 9. The first screw positioning mechanism is arranged on the horizontal part of the first right-angle base 4, is in driving connection with the first conical sliding seat 5, and is used for driving the first conical sliding seat 5 to slide along the guide of the X-direction guide groove 8 and positioning the first conical sliding seat.

The lower centering mechanisms are arranged in two groups, are respectively arranged on the two groups of stand columns 2 symmetrically, are respectively matched with the two groups of upper centering mechanisms, and comprise a second right-angle base 10, a second conical sliding seat 11 and a second screw positioning mechanism. The vertical connecting plate of a second right angle base 10 lateral part passes through the bolt and is connected with pre-buried internal thread cover 3 on the stand 2, makes second right angle base 10 fix on the stand 2 side. The horizontal portion of the second right-angle base 10 is provided with a second slot 12, and two sides of the second slot 12 are symmetrically provided with Y-direction guide grooves 13. The extending direction of the Y-guide groove 13 is the same as the extending direction of the second groove hole 12. The middle part of the second conical sliding seat 10 is inserted into the second slot 12 and is connected with the Y-direction guide groove 13 in a sliding way, and the Y-direction guide groove 13 limits the position. The upper part of the second conical sliding seat 10 is a conical opening, the middle part of the second conical sliding seat 10 is provided with an axially vertical conical positioning hole 14, and the conical positioning hole 14 is matched with the positioning pin 6. The second screw positioning mechanism is arranged on the horizontal part of the second right-angle base 10 and is in driving connection with the second conical sliding seat 11 for driving the second conical sliding seat 1 to slide along the guide of the Y-direction guide groove 13 and positioning.

Referring to fig. 6, the first screw positioning mechanism and the second screw positioning mechanism have the same structure and vertical driving direction, and both are composed of an adjusting screw rod 15, a nut seat 16, a bracket 17, a ball head 18 and a spherical hinge support 19. The nut seat 16 is a nut welded on the bracket 17. Two sets of nut seats 16 are respectively fixed on the horizontal parts of the first right-angle base 4 and the second right-angle base 10 through a bracket 17. Two groups of adjusting screw rods 15 are axially horizontal and are respectively in threaded connection with two groups of nut seats 15, and ball heads 18 are arranged at one ends of the two groups of adjusting screw rods 15, which penetrate through the corresponding first conical sliding seat 5 and the second conical sliding seat 11. The first conical sliding seat 5 and the second conical sliding seat 11 are both provided with a spherical hinge support 19 connected with a corresponding ball head 18.

The first screw positioning mechanism and the second screw positioning mechanism are the same in adjustment mode, adjustment is carried out by rotating the adjusting screw rod 15, and displacement control is accurate. When the adjustable screw rod is used, the adjustable screw rod 15 rotates around the axial direction of the adjustable screw rod, relative to the nut seat 16, and the adjustable screw rod 15 axially feeds or contracts relative to the nut seat 16. The ball head 18 is a running fit in the ball pivot seat 19. When the ball head 18 is driven by the adjusting screw rod 15, based on the mortise and tenon matching structure of the ball head 18 and the spherical hinge support 19, the ball head 18 drives the spherical hinge support 19 to feed or contract, and further drives the first conical slide 5 and the second conical slide 11 fixedly connected with the spherical hinge support 19 to move on the first right-angle base 4 and the second right-angle base 10, so that the accurate positioning and matching of the adjusting positioning pin and the conical positioning hole are realized.

The lower end of the positioning pin 6 is a pointed end, so that the positioning pin can be conveniently inserted into the conical positioning hole 14. The positioning pin 6 body is provided with a plurality of groups of pin holes 20 which are vertically and uniformly distributed along the axial direction, the first conical sliding seat 5 is provided with a jack 21 which horizontally extends into the through hole 9 of the positioning pin body, and the position of the positioning pin 6 in the vertical direction is fixed by inserting a lock pin into the jack 21 and enabling the lock pin to enter the pin hole 20 on the positioning pin 6 body.

The first conical sliding seat 5 and the second conical sliding seat 11 are vertically inserted into the X-direction guide groove 8 and the Y-direction guide groove 13 respectively through bolts connected with the bodies of the first conical sliding seat and the second conical sliding seat to realize sliding connection and fixed positioning.

As a centering method in the pre-positioning, in the present embodiment, the first tapered slide 5 and the second tapered slide 11 may be positioned in the X direction and the Y direction by using bolts with reference to the position of the tapered positioning sleeve. The tip of the positioning pin 6 falls on the conical guide surface of the conical positioning hole 14, and the positioning pin 6 is gradually guided to the middle position of the conical positioning hole 14 along with the downward movement of the positioning pin 6, so that the automatic accurate positioning of the positioning pin and the conical positioning hole is realized.

As another immediate centering manner, in another embodiment, when the positioning pin 6 is about to enter the tapered positioning hole 14, the adjusting screw 15 is rotated to move the first tapered slide 5 and the second tapered slide 11 on the first right-angle base 4 and the second right-angle base 10, so as to adjust the precise positioning and matching of the positioning pin and the tapered positioning hole. This adjustment reduces the requirement for the radius of the tapered opening of the tapered locating hole 14 and avoids the tip of the locating pin from pressing the second tapered slide 11 and the tapered locating hole 14 under the great pressure of the prefabricated top plate.

The overall usage of the equipment of this embodiment is as follows: the adjustment distance of the first conical slide 5 on the first right-angle base 4 along the guide movement of the X-direction guide groove 8 in the upper centering mechanism is determined by the fact that the second conical slide 11 in the lower centering mechanism cannot move in the X direction on the second right-angle base 10. The principle of determining the distance is as follows: because the second conical sliding seat 11 can not move in the X direction on the second right-angle base 10, the conical positioning hole 14 on the second conical sliding seat 11 is fixed with the center distance of the tenon on the upright post 2, so the center distance between the through hole 9 on the first conical sliding seat 5 and the mortise on the top plate 1 is adjusted according to the center distance between the conical positioning hole 14 and the tenon on the upright post 2. And driving the first conical sliding seat 5 to move by using the first screw positioning mechanism, so that the center distance between the through hole 9 on the first conical sliding seat 5 and the mortise on the top plate 1 is equal to the center distance between the conical positioning hole 14 on the second conical sliding seat 11 and the tenon on the stand column 2. Therefore, when the top plate 1 and the upright post 2 are installed, and the positioning pin 6 in the through hole 9 is inserted into the tapered positioning hole 14 on the second tapered sliding seat 1, the mortise on the top plate 1 and the tenon on the upright post 2 can be ensured to be aligned left and right.

The adjustment distance of the second conical slide seat 11 in the lower centering mechanism on the second right-angle base 10 along the guide movement of the Y-direction guide groove 13 is determined by utilizing the fact that the first conical slide seat 5 of the upper centering mechanism can not move in the Y direction on the first right-angle base 4. The determination principle is as follows: because the first conical sliding base 5 can not move in the Y direction on the first right-angle base 4, the Y-direction distance between the center of the through hole 9 of the first conical sliding base 5 and the center point of the mortise is fixed. According to this distance, the second conical slide 11 can be adjusted for guided movement on the second right-angle base 10 along the Y-direction guide groove 13. The second conical sliding seat 11 is driven by the second screw positioning mechanism to move on the second right-angle base 10 along the guide of the Y-direction guide groove 13, so that the Y-direction distance between the center of the conical positioning hole 14 of the second conical sliding seat 11 and the center point of the tenon is equal to the Y-direction distance between the center of the through hole 9 of the first conical sliding seat 5 and the center point of the mortise, and therefore when the top plate 1 and the stand column 2 are installed, the mortise on the top plate 1 and the tenon on the stand column 2 can be centered front and back when the positioning pin 6 in the through hole 9 is inserted into the conical positioning hole 14 on the second conical sliding seat 1.

Example 2

In another possible embodiment, as shown in fig. 7, the positioning pin 6 is directly and vertically fixedly mounted on the first right angle base 4, and there is no other intermediate connecting member or horizontal movement adjusting member between the positioning pin 6 and the first right angle base 4, including the first taper slider 5 and the like.

In cooperation therewith, a horizontal positioning adjustment device of the tapered positioning hole 14 is provided on the second right-angle base 10 connected to the pillar 2. Specifically, the same as the connection mode of the first right-angle base 4 and the (prefabricated) top plate 1, the internal thread sleeve 3 is arranged on the side part of the upright post 2, and one vertical side panel of the second right-angle base 10 is fixed on the upright post 2 in a bolt inserting and fixing mode.

The second right-angle base 10 is provided with a middle slide 22 and a second conical slide 11 in sequence. A round hole 23 is formed in the middle horizontal plate of the second right-angle base 10 to form an avoidance space for the movement of the conical positioning hole 14. The middle sliding seat is of a flat plate structure, a slotted hole 24 is formed in the middle of the middle sliding seat, a guide groove 25 is formed in each of the two sides of the middle sliding seat, and the guide grooves 25 are perpendicular to the slotted hole 24 and located outside the circular hole. The guide groove is provided with a countersunk head bolt group which sequentially penetrates through the middle sliding seat and the second conical sliding seat 11, and the upper edge of the guide groove is of a chamfer structure suitable for the countersunk head bolt group. The lower ends of the countersunk head bolt groups penetrate through the middle sliding seat and the second right-angle base 10 and are respectively fixed by nuts. When the positioning device is used, the countersunk head bolt group is loosened, the middle sliding seat is slid, the conical positioning hole 14 penetrating through the middle sliding seat is moved along the X direction, and then the positioning device is fixed.

The middle part of the second conical sliding seat 11 is provided with a conical positioning hole 14. The tapered positioning hole 14 passes through the slotted hole 24 and the circular hole 23 in order.

One end of the middle sliding seat along the X direction is provided with a spherical hinge support 19, and the middle sliding seat is driven and positioned by a group of structures such as the adjusting screw rod 15 and the ball head 18 in the embodiment 1. One end of the second right-angle base 10 along the Y direction is also provided with a ball pivot support 19, which is driven and positioned by structures such as the adjusting screw rod 15 and the ball head 18 in another embodiment 1. Under the combined adjustment in the X direction and the Y direction, the positions of the second conical slider 11 and the conical positioning hole 14 are changed with reference to the position of the positioning pin 6. When the positioning device is used, the top plate 1 is hoisted, the tip end of the positioning pin 6 falls into the opening of the conical positioning hole 14, and the conical positioning hole are guided and positioned by the open conical guide surface.

The advantages are that: the upright post is a fixed unit, which is convenient for an operator to adjust. The first right-angle base 4 is suspended by suspension equipment, so that certain floating and shaking exist, and the adjustment is inconvenient. The above method can avoid the problem of inconvenient operation of the adjusting device/system in the present case.

Example 3

In this embodiment, the horizontal positioning adjusting means of the positioning pin 6 is provided on the first right-angle base 4, and the tapered positioning hole 14 is fixedly mounted on the second right-angle base 10, corresponding to the technical content of embodiment 2. Specifically, the upper tapered opening structure of the tapered positioning hole 14 is fixed on the second right-angle base 10, and the upper end surface of the tapered opening structure is flush with the upper surface of the second right-angle base 10. The conical open structure and the second right-angle base 10 are fixed by bolts.

In cooperation with this, the first right-angle base 4 is provided with an intermediate slide 22 and a first conical slide 5 in sequence. The middle part of the first right-angle base 4 is provided with a round hole 23 to form an avoiding space and a moving space of the positioning pin 6. The middle slide 22 is a flat plate structure, and has a slotted hole 24 in the middle and a guide groove 25 on each side, which is perpendicular to the slotted hole. The guide groove 25 is provided with a countersunk head bolt group which sequentially penetrates through the middle sliding seat 22 and the first right-angle base 4, and the upper edge of the guide groove 25 is a chamfer structure adapted to the countersunk head bolt group so as to prevent the countersunk head bolt group from extending out of the guide groove 25 and interfering the first conical sliding seat 5. When the positioning device is used, the countersunk bolt group is loosened, the middle sliding seat 22 is slid, the positioning pin 6 penetrating through the middle sliding seat moves along the Y direction, and then the positioning pin is fixed.

The middle part of the first conical sliding seat 5 is a through hole for fixing the positioning pin 5.

One end of the middle sliding seat 22 along the Y direction is provided with a spherical hinge support 19, and is driven and positioned by a group of structures such as the adjusting screw rod 15 and the ball head 18 in the embodiment 1. One end of the first right-angle base 4 along the X direction is also provided with a spherical hinge support 19 which is driven and positioned by structures such as the adjusting screw rod 15 and the ball head 18 in another group of embodiments 1. Under the comprehensive adjustment in the X direction and the Y direction, the position of the positioning pin 6 is dynamically adjusted and fixed by referring to the position of the conical positioning hole 14. During the use, hoist and mount roof 1, make the pointed end of locating pin 6 fall into the uncovered mouth of toper locating hole 14 to the open toper spigot surface is with the two guide orientation, thereby realizes roof 1 and stand 2's accurate cooperation.

The advantages are that: the prefabricated roof 1 can hoist, and under the condition of highly convenient regulation, the locating pin position on the prefabricated roof is adjusted to the priority. The condition that the space of the upright post is limited or the position of the upright post is higher can also be greatly convenient to assemble. The position of the positioning pin is adjusted in advance, so that the conical positioning hole is accurately matched in the hoisting process, and the rapid positioning and installation of the prefabricated top plate and the stand column are realized.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which shall fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.