CN112978558A

CN112978558A - Building board lifting and fixing device

Info

Publication number: CN112978558A
Application number: CN202110182265.8A
Authority: CN
Inventors: 林宏剑; 朱晨超
Original assignee: Taizhou University
Current assignee: Taizhou University
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-18

Abstract

The invention relates to the technical field of hoisting equipment and discloses a building board hoisting and fixing device. This building board lifts by crane fixing device accomplishes the fixed between son knot and the box, detains through the son that sets up and the butt joint between the box and then avoids appearing second chain and third chain junction disconnection phenomenon lifting by crane the in-process, and then avoids building board at the phenomenon that half empty dropped, and then guarantees that building board does not receive the damage, guarantees below workman's personal safety simultaneously.

Description

Building board lifting and fixing device

Technical Field

The invention belongs to the technical field of hoisting devices, and particularly relates to a building board hoisting and fixing device.

Background

The hoisting equipment is used in many places, particularly in the field of buildings, the hoisting equipment can transfer a heavy object to another place, so that required operation is completed, the hoisting equipment generally utilizes a steel wire rope, the steel wire rope is wound up by a motor during hoisting, and the steel wire rope is wound up during transferring.

Most of current hoisting accessory, it is usually only simple to lift by crane the chain through knoing or outside couple is connected to it, and then make the chain form a circular that lifts by crane, and then will lift by crane the thing and put into inside, this kind of mode is at the in-process that lifts by crane, along with the influence of wind-force, it takes place to rock to lift by crane the thing, and then cause the phenomenon of lifting by crane chain junction appearance loose and complete separation, and then no longer have the fixed ability to the thing that lifts by crane, and then can produce the phenomenon that the thing that lifts by crane dropped from the high altitude, it not only can cause serious damage to the thing that lifts by crane to lift by crane the thing to drop from the high altitude, can the constructor that below cause certain damage simultaneously.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a building board hoisting and fixing device which has the advantages of self-fixed connection of hoisting chains and solves the problem that the hoisting object shakes along with the influence of wind power, so that the connection part of the hoisting chains is loose and completely separated.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a building panel lifts by crane fixing device, including the davit that rises, the inside of the davit that rises is hollow structure, the first motor of inside fixedly connected with of davit that rises, the output fixedly connected with dwang of first motor, the dwang does not rotate with the one end of first motor contact and connects on the inner wall of davit that rises, fixed connection is at the stopper that has a limit on the dwang, fixedly connected with haulage rope on the dwang, the quantity of haulage rope is two, two haulage rope difference fixed connection are in the left and right sides of dwang, two haulage ropes do not have the couple on the one end of dwang contact fixedly connected with respectively, it has lower couple to go up the couple respectively the activity joint, the lower extreme fixedly connected with of couple plays the lifting box under two.

Preferably, go up the couple and be olecranon shape with couple down, beneficial effect: the hook has certain bending degree for olecranon shape through last couple and the couple down that sets up, and then avoids going up the couple and couple down the phenomenon that appears random separation when the butt joint, and operating personnel separates again easily manually between couple and the couple down again simultaneously, and then improves work efficiency.

Preferably, lift by crane fixing device and include the second motor, second motor fixed connection is on the inner wall of lifting by crane the case, the output fixedly connected with forward threaded rod of second motor, the forward threaded rod does not rotate with the one end fixedly connected with reverse threaded rod of second motor contact, reverse threaded rod does not rotate with the one end of forward threaded rod contact and connects on the inner wall of lifting by crane the case, be provided with first moving body on the forward threaded rod, two auxiliary rods of fixedly connected with on the inner wall of lifting by crane the case, it has second moving body and third moving body to slide respectively on two auxiliary rods, two auxiliary rods do not with the one end fixedly connected with stop collar that lifts by crane the case contact, the structure on the reverse threaded rod is the same with the structure on the forward threaded rod and is the mode setting of mirror image, and beneficial effects: through the forward threaded rod and the reverse threaded rod that set up, and then when forward threaded rod and reverse threaded rod rotated, and then the device that sets up on normal threaded rod and the reverse screw rod can move to and carrying on the back mutually, and then can carry out accurate lifting by crane to the building board of equidimension not, and then improve the variety of the device.

Preferably, set up threaded hole on the first moving body, first moving body is on the positive threaded rod through the screw hole threaded connection who sets up, and the auxiliary rod sets up for the slope, and the inclination of auxiliary rod is not close to the positive threaded rod with the one end of lifting by crane the case contact, beneficial effect: the auxiliary rod is arranged obliquely, so that the distance between the second moving body and the first moving body is changed in the moving process of the second moving body and the third moving body, and the device can achieve a good lifting effect when facing building boards with different widths.

Preferably, all seted up the slide opening on first moving body, the second moving body and the third moving body, the inside sliding connection of slide opening has the slide bar, beneficial effect: through the slide bar that sets up in the slider inside, and then when first moving body moved, and then first moving body drives the slide bar and moves, and then the removal of slide bar drives the second moving body and slides on the auxiliary rod with the third moving body, and then guarantee that first moving body and second moving body and third moving body are in same straight line all the time, and then guarantee when lifting by crane building board, avoid building board to take place the slope, make building board atress even simultaneously, avoid appearing the damage at the in-process of lifting by crane, and then guarantee building board's integrality and pleasing to the eye.

Preferably, the lower extreme fixedly connected with first chain of first removal body, the lower extreme fixedly connected with sucking disc of first chain, beneficial effect: can effectually fix building board once more through the sucking disc that sets up, and then play the fixed effect of secondary, and then avoid building board random high altitude to drop, and then guarantee that building board does not receive the tumble injury to and guarantee below constructor's safety.

Preferably, the lower extreme fixedly connected with second chain of second moving body, the lower extreme fixedly connected with son of second chain are detained, and the son is detained for letter "U" shape, has all seted up the card hole on the left side surface that the son was detained and the left side inner wall, and the inside in card hole is rotated and is connected with the thread bush, the lower extreme fixedly connected with third chain of third moving body, the lower extreme fixedly connected with box of third chain, box and son detain mutual adaptation, on the right side inner wall of box and the equal fixedly connected with kelly in right side surface, be provided with the screw thread on the kelly, beneficial effect: through the setting of the clamping rod and the mutual adaptation of the sub-buckle and the box buckle, the sub-buckle and the box buckle can be butted, the clamping rod can be fixed through the threads arranged on the clamping rod, the clamping rod is prevented from being separated from the inside of the clamping hole through the convenient thread sleeve, the stability of the sub-buckle and the box buckle after fixation is guaranteed, the safety of the building board in the hoisting process is guaranteed, and the building board is prevented from being separated.

When the building board hoisting and fixing device is used, a first motor is started, a rotating rod is driven to rotate through the rotation of the output end of the first motor, a traction rope extends out of the interior of a hoisting arm, the traction rope extends out to drive a hoisting box to move, the hoisting box is moved to a specified position, a second motor is started, when the output end of the second motor rotates, the first moving body moves on a forward threaded rod, the first moving body cannot rotate along with the rotation of the forward threaded rod due to the limitation of the second moving body, a third moving body and a sliding rod, only moves left and right on the forward threaded rod, the sliding rod is driven to move when the first moving body moves, the second moving body and the third moving body are driven to move by the movement of the sliding rod, and the second moving body and the third moving body move on an auxiliary rod, and further along with the movement of the second moving body and the third moving body, and further the distance between the second moving body and the third moving body and the first moving body is changed to be larger and smaller, so as to realize the lifting of the building boards with different widths, and further when the second moving body, the third moving body and the first moving body move to the appointed positions, further the second chain and the third chain pass through the lower end of the building board, further a right vertical plate of the female buckle is inserted into the inner part of the male buckle, further the female buckle is moved rightwards, further the clamping rod is inserted into the inner part of the clamping hole, further the threaded sleeve is rotated, further the thread sleeve is arranged on the clamping rod, further the threaded sleeve is in threaded connection with the clamping rod, further the fixation between the male buckle and the female buckle is completed, further the first motor is reversely started, further the rotating rod of the first motor is driven to rotate, further the traction rope is wound on the rotating rod again, and then along with the continuous winding of haulage rope, and then the lifting box drives building board rebound, and then accomplishes lifting by crane to building board, detain through the son that sets up and the butt joint between the box and then avoid appearing second chain and third chain junction disconnection phenomenon lifting by crane the in-process, and then avoid building board at the phenomenon that half empty dropped, and then guarantee that building board does not receive the damage, guarantee below workman's life safety simultaneously.

The invention has the beneficial effects that:

1. this building board lifts by crane fixing device, pass the lower extreme of second chain and third chain from building board, and then make a right side of box erect the version and insert the inside that the son was buckled, and then move the box to the right, and then the kelly inserts the inside in card hole, and then rotate the thread bush, and then through setting up the screw thread on the kelly, and then the thread bush carries out threaded connection with the kelly, and then accomplish the fixed between son and the box, butt joint between son knot and the box through setting up and then avoid appearing second chain and third chain junction disconnection phenomenon at the lift by crane in-process, and then avoid building board at the phenomenon that the half-empty dropped, and then guarantee that building board does not receive the damage, guarantee below workman's personal safety simultaneously.

2. The building board hoisting and fixing device moves the second motor, when the output end of the second motor rotates, the first moving body moves on the positive screw rod, and the second moving body, the third moving body and the slide rod are restricted, and the first moving body can not rotate along with the rotation of the positive threaded rod, only moves left and right on the positive threaded rod, when the first moving body moves, the sliding rod is driven to move, and the second moving body and the third moving body are driven to move by the movement of the sliding rod, the second moving body and the third moving body move on the auxiliary rod, and along with the movement of the second moving body and the third moving body, and then the distance between the second moving body and the third moving body and the distance between the second moving body and the first moving body are changed to be larger and smaller, so that the building boards with different widths can be lifted.

3. This building board lifts by crane fixing device, the quantity through the haulage rope that sets up is two, and then can be the furthest assurance lift by crane the stability of case when the high altitude removes, and then avoid the case of lifting by crane to take place serious rocking phenomenon when lifting by crane the article, and then avoid the thing of lifting by crane to rock unable accurate putting in appointed position, and then guarantee that the thing of lifting by crane can be accurate putting in appointed position, simultaneously through the last couple that sets up with lower couple be olecranon form, and then conveniently lift by crane the case and lift by crane direct separation of davit, and then make the case of lifting by crane can separate with the davit when not using, and then carry out solitary storage to the case of lifting by crane, and then avoid exposing outside for a long time, the damage that the weather caused to it, and then guarantee the life who lifts by crane incasement structure, and then reduce the cost of lifting by crane incasement structure change and maintenance.

4. This building board lifts by crane fixing device, through setting up the stopper on the dwang, and then can effectually avoid two haulage rope to take place the phenomenon of knoing, and then separate through using two haulage ropes the stopper, and then guarantee that the haulage rope also can not appear the phenomenon of knoing in quick winding, and then guarantee the use that the device can be normal, and then reduce the haulage rope and tie a knot the back maintenance wasted time, reduce operating personnel's intensity of labour simultaneously, and then guarantee the construction process, and then improve the efficiency of construction.

5. The building board lifting and fixing device is in sliding connection with the first moving body, the second moving body and the third moving body through the arranged slide rod, so that the first moving body cannot rotate along with the rotation of the forward threaded rod, the first moving body can only move left and right on the forward threaded rod is ensured, meanwhile, the slide rod is driven to move through the movement of the first moving body, the slide rod drives the second moving body and the third moving body to move, the first moving body, the second moving body and the third moving body are ensured to be always positioned on the same straight line, the phenomenon that a male buckle and a female buckle on the second moving body and the third moving body cannot be accurately butted is avoided, the first lock chain, the second lock chain and the third lock chain are ensured to be stressed more uniformly, the phenomenon that a lifted object inclines in the lifting process is avoided, and the lifted object is further ensured not to be damaged, meanwhile, the lifting object is prevented from falling and injuring the constructors below.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of a building panel hoisting and fixing device according to the present invention;

FIG. 2 is a schematic plan view of a lifting arm structure of the building panel lifting fixture of the present invention;

FIG. 3 is a schematic plan view of a lifting box structure of the building board lifting and fixing device of the present invention;

FIG. 4 is a schematic structural view of a first movable body in the lifting and fixing device for building boards according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

fig. 7 is a schematic structural view of a male buckle and a female buckle in the lifting and fixing device for building boards of the present invention.

Reference numerals: 1 lifting arm, 101 rotating rod, 102 limiting block, 103 first motor, 2 traction rope, 3 upper hook, 4 lower hook, 5 lifting box, 501 second motor, 502 auxiliary rod, 503 third moving body, 504 limiting sleeve, 505 reverse threaded rod, 506 first moving body, 507 second moving body, 508 sliding rod, 509 forward threaded rod, 510 threaded hole, 511 sliding hole, 6 second chain, 601 secondary buckle, 602 clamping hole, 603 threaded sleeve, 7 third chain, 701 female buckle, 702 clamping rod, 8 first chain, 9 sucker.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1-7, the present invention provides a technical solution: a building board hoisting and fixing device comprises a hoisting arm 1, the inside of the hoisting arm 1 is of a hollow structure, the hoisting arm 1 is connected to an external mobile device, the inside of the hoisting arm 1 is fixedly connected with a first motor 103, the output end of the first motor 103 is fixedly connected with a rotating rod 101, one end of the rotating rod 101, which is not contacted with the first motor 103, is rotatably connected to the inner wall of the hoisting arm 1, a limiting block 102 is fixedly connected to the rotating rod 101, two traction ropes 2 are fixedly connected to the rotating rod 101, the two traction ropes 2 are respectively and fixedly connected to the left side and the right side of the rotating rod 101, a through groove is formed in the lower surface of the hoisting arm 1, the two traction ropes 2 can be effectively prevented from being wound and knotted through the arranged limiting block 102, the normal use of the device can be further ensured, and further through the arranged first motor 103, when the output shaft of the first motor 103 rotates, and then the dwang 101 follows first motor 103 and rotates, and then two haulage ropes 2 twine and loose on dwang 101, and then realize that haulage rope 2 stretches out the inside length of davit 1.

Two haulage rope 2 do not have with dwang 101 contact's one end respectively fixedly connected with go up couple 3, go up and have movable joint down 4 on the couple 3 respectively, two lower extreme fixedly connected with of 4 couple lift by crane case 5 down, and then through the last couple 3 that sets up with 4 activity joints of couple down, and then when need not use lift by crane case 5, and then can make lift by crane case 5 and lift by crane 1 and separate, and then conveniently lift by crane 1 other hoisting accessory of changing of davit, it is olecranal form with couple 4 down to go up couple 3.

A second motor 501 is fixedly connected inside the hoisting box 5, a forward threaded rod 509 is fixedly connected at the output end of the second motor 501, a reverse threaded rod 505 is fixedly connected at one end of the forward threaded rod 509, which is not in contact with the second motor 501, the other end of the reverse threaded rod 505, which is not in contact with the forward threaded rod 509, is rotatably connected to the inner wall of the hoisting box 5, a first moving body 506 is arranged on the forward threaded rod 509, a threaded hole 510 is formed in the first moving body 506, the first moving body 506 is in threaded connection with the forward threaded rod 509 through the threaded hole 510, two auxiliary rods 502 are fixedly connected to the inner wall of the hoisting box 5, the auxiliary rods 502 are obliquely arranged, the inclination angle of the auxiliary rods 502 is that the end, which is not in contact with the hoisting box 5, is close to the forward threaded rod 509, a second moving body 507 and a third moving body 503 are respectively slid on the two auxiliary rods 502, and a limit sleeve 504 is fixedly connected at one end, sliding holes 511 are formed in the first moving body 506, the second moving body 507 and the third moving body 503, a sliding rod 508 is connected to the inside of each sliding hole 511 in a sliding manner, when the output end of the second motor 501 rotates, the first moving body 506 moves on the forward threaded rod 509, the second moving body 507, the third moving body 503 and the sliding rod 508 are limited, the first moving body 506 does not rotate along with the rotation of the forward threaded rod 509, only moves left and right on the forward threaded rod 509, when the first moving body 506 moves, the sliding rod 508 is driven to move, the second moving body 507 and the third moving body 503 are driven to move by the movement of the sliding rod 508, the second moving body 507 and the third moving body 503 move on the auxiliary rod 502, and the distance between the second moving body 507 and the third moving body 503 as well as the second moving body 507 and the third moving body 503 move is increased and decreased And further realize hoisting the building boards with different widths.

The lower end of the first moving body 506 is fixedly connected with a first lock chain 8, the lower end of the first lock chain 8 is fixedly connected with a sucker 9, the sucker 9 is an existing structure and is not described in detail herein, the lower end of the second moving body 507 is fixedly connected with a second lock chain 6, the lower end of the second lock chain 6 is fixedly connected with a sub-buckle 601, the sub-buckle 601 is in a letter 'U' shape, the outer surface of the left side and the inner wall of the left side of the sub-buckle 601 are both provided with a clamping hole 602, the inner part of the clamping hole 602 is rotatably connected with a threaded sleeve 603, the lower end of the third moving body 503 is fixedly connected with a third lock chain 7, the lower end of the third lock chain 7 is fixedly connected with a female buckle 701, the female buckle 701 and the sub-buckle 601 are mutually matched, the inner wall of the right side and the surface of the female buckle 701 are both fixedly connected with a clamping rod 702, the clamping rod 702 is provided with threads, the lengths of the second lock chain 6 and, and then pass second chain 6 and third chain 7 from the lower extreme of building panel, and then make a right side vertical edition of box 701 insert the inside of son knot 601, and then move box 701 to the right, and then the kelly 702 inserts the inside of calorie hole 602, and then rotate thread bush 603, and then through setting up the screw on kelly 702, and then thread bush 603 and kelly 702 carry out threaded connection, and then accomplish the fixing between son knot 601 and the box 701, and then avoid second chain 6 and third chain 7 junction disconnection phenomenon to appear lifting by crane the in-process, and then avoid the phenomenon that building panel drops in the sky, and then guarantee that building panel does not receive the damage, guarantee the life safety of workman below simultaneously, the structure on the reverse threaded rod 505 is the same with the structure on forward threaded rod 509 and is the mode setting of mirror image.

When the building board hoisting and fixing device is used, the building board hoisting and fixing device comprises the following steps:

the first step is as follows: starting the first motor 103, and further driving the rotating rod 101 to rotate through the rotation of the output end of the first motor 103, so that the traction rope 2 extends out of the interior of the lifting arm 1, and further the extension of the traction rope 2 drives the lifting box 5 to move, and further the lifting box 5 is moved to a specified position;

the second step is that: further, the second motor 501 is activated, when the output end of the second motor 501 rotates, the first moving body 506 moves on the forward threaded rod 509, and further, the first moving body 506 does not rotate with the rotation of the forward threaded rod 509 but moves only left and right on the forward threaded rod 509 due to the restriction of the second moving body 507, the third moving body 503 and the slide rod 508, and further, when the first moving body 506 moves, the slide rod 508 moves, and further, the second moving body 507 and the third moving body 503 move by the movement of the slide rod 508, and further, the second moving body 507 and the third moving body 503 move on the auxiliary rod 502, and further, with the movement of the second moving body 507 and the third moving body 503, the distance between the second moving body 507 and the third moving body 503 and the first moving body 506 changes to become larger and smaller, thereby realizing the hoisting of the building boards with different widths;

the third step: when the second moving body 507, the third moving body 503 and the first moving body 506 move to the designated positions, the second chain 6 and the third chain 7 pass through the lower end of the building board, a right vertical plate of the female buckle 701 is inserted into the male buckle 601, the female buckle 701 moves rightwards, the clamping rod 702 is inserted into the clamping hole 602, the threaded sleeve 603 is rotated, the clamping rod 702 is provided with threads, the threaded sleeve 603 is in threaded connection with the clamping rod 702, the male buckle 601 and the female buckle 701 are fixed, the first motor 103 is started reversely, the first motor 103 rotates to drive the rotating rod 101 to rotate, the traction rope 2 is wound on the rotating rod 101 again, the building board is driven to move upwards along with the continuous winding of the traction rope 2, the lifting box 5 drives the building board to complete lifting of the building board, and the second chain 6 and the third chain are prevented from occurring in the lifting process through the butt joint between the male buckle 601 and the female buckle 701, so that the second chain 6 and the third chain 7 and the third chain are prevented from occurring in the lifting process The phenomenon of disconnection of 7 junctions of chain, and then avoid building board at the phenomenon that half empty dropped, and then guarantee that building board does not receive the damage, guarantee below workman's life safety simultaneously.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The utility model provides a building panel lifts by crane fixing device, includes davit (1), its characterized in that: the inside of lifting arm (1) is hollow structure, the first motor of inside fixedly connected with (103) of lifting arm (1), output fixedly connected with dwang (101) of first motor (103), dwang (101) do not rotate with the one end of first motor (103) contact and connect on the inner wall of lifting arm (1), dwang (101) are gone up fixed connection and are had stopper (102), fixedly connected with haulage rope (2) on dwang (101), the quantity of haulage rope (2) is two, two haulage rope (2) are fixed connection respectively in the left and right sides of dwang (101), couple (3) are gone up with the one end difference fixedly connected with of dwang (101) contact in two haulage rope (2), go up couple (3) and go up movable joint respectively and have couple (4) down, the lower extreme fixedly connected with lifting box (5) of couple (4) under two, the inside of lifting box (5) is provided with fixing device.

2. The building board lifting and fixing device of claim 1, wherein: the upper hook (3) and the lower hook (4) are both olecranon-shaped.

3. The building board lifting and fixing device of claim 1, wherein: the lifting fixing device comprises a second motor (501), the second motor (501) is fixedly connected to the inner wall of a lifting box (5), an output end of the second motor (501) is fixedly connected with a forward threaded rod (509), the forward threaded rod (509) is not connected with one end of the second motor (501) in a fixed mode and is connected to the inner wall of the lifting box (5) in a rotating mode, the reverse threaded rod (505) is not connected to the inner wall of the lifting box (5) in a rotating mode and is not connected to one end of the forward threaded rod (509) in a contacting mode, a first moving body (506) is arranged on the forward threaded rod (509), two auxiliary rods (502) are fixedly connected to the inner wall of the lifting box (5), the second moving body (507) and a third moving body (503) slide on the two auxiliary rods (502) respectively, and the two auxiliary rods (502) are not connected with one end of the lifting box (5) in.

4. The building board lifting and fixing device of claim 3, wherein: threaded hole (510) have been seted up on first removal body (506), and first removal body (506) are through screw hole (510) threaded connection who sets up on forward threaded rod (509), and auxiliary rod (502) are the slope setting, and the inclination of auxiliary rod (502) is for not being close to forward threaded rod (509) with the one end of lifting by crane case (5) contact.

5. The building board lifting and fixing device of claim 4, wherein: the first moving body (506), the second moving body (507) and the third moving body (503) are all provided with sliding holes (511), and sliding rods (508) are connected inside the sliding holes (511) in a sliding mode.

6. The building board lifting and fixing device of claim 5, wherein: the lower end of the first moving body (506) is fixedly connected with a first chain (8), and the lower end of the first chain (8) is fixedly connected with a sucker (9).

7. The building board lifting and fixing device of claim 6, wherein: the lower extreme fixedly connected with second chain (6) of second moving body (507), the lower extreme fixedly connected with of second chain (6) detains (601), and sub knot (601) are letter "U" shape, all seted up card hole (602) on the left side surface of sub knot (601) and the left side inner wall, and the internal rotation of card hole (602) is connected with thread bush (603).

8. The building board lifting and fixing device of claim 7, wherein: the lower end of the third moving body (503) is fixedly connected with a third chain (7), the lower end of the third chain (7) is fixedly connected with a female buckle (701), the female buckle (701) is matched with the male buckle (601), a clamping rod (702) is fixedly connected to the inner wall of the right side of the female buckle (701) and the surface of the right side of the female buckle, and threads are arranged on the clamping rod (702).

9. The building board lifting and fixing device of claim 8, wherein: the structure on the reverse threaded rod (505) is the same as the structure on the forward threaded rod (509) and is arranged in a mirror image mode.