CN210086479U

CN210086479U - Adjustable fixing device for mounting prestressed hollow slab

Info

Publication number: CN210086479U
Application number: CN201920775809.XU
Authority: CN
Inventors: 昝伟; 欧东洋; 龙贤明; 张冬雪
Original assignee: Sichuan Zhongde Lujiang Equipment Technology Co Ltd
Current assignee: Sichuan Zhongde Lujiang Equipment Technology Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-02-18
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses an adjustable fixing device for the installation of a prestressed hollow slab, which comprises a prestressed hollow slab installation component arranged at the joint of a bottom prestressed hollow slab and a vertical prestressed hollow slab and laid along the joint direction, a first adjusting component arranged in the bottom prestressed hollow slab, a second adjusting component arranged in the vertical prestressed hollow slab and having the same structure with the first adjusting component, and connecting rods of which the two ends are connected with the first adjusting component and the second adjusting component in a one-to-one correspondence manner by adopting threads; the first adjusting assembly comprises a T-shaped inner thread sleeve which is pre-buried in the bottom prestressed hollow slab, a first screw rod of which the bottom is sleeved in the T-shaped inner thread sleeve by threads, and a third screw rod of which one end is connected with the top of the first screw rod by a bolt and the other end is connected with the connecting rod by threads. By the proposal, the utility model has the advantages of simple structure, reliable connection, convenient adjustment, etc.

Description

Adjustable fixing device for mounting prestressed hollow slab

Technical Field

The utility model belongs to the technical field of the hollow slab installation technique of prestressing force and specifically relates to a fixing device with adjustable be used for the hollow slab installation of prestressing force.

Background

Among the prior art, the connecting piece in the installation of side fascia all directly punches in the side fascia, implants expansion bolts and connects, and its operating time is longer, and the roughness of unable side fascia wall is adjusted. In addition, the traditional outer wall construction needs to build a scaffold and a supporting formwork, the construction is carried out in a cast-in-place or brick laying mode, and the outer wall needs to be plastered for the second time, and procedures such as tile pasting are used for carrying out attractive and waterproof treatment. The damage of the outer wall is difficult to repair, and the service life of the whole building is influenced. The traditional construction method has the defects of complicated construction, long construction period, high construction difficulty, uncontrollable quality and the like. With the continuous development of prestressed hollow slab technology, prestressed hollow slabs are gradually replacing traditional cast-in-place or bricked exterior wall structures. However, the installation of the prestressed hollow slab in the prior art is complex, and the firm installation reliability needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, an object of the utility model is to provide a fixing device with adjustable be used for the installation of prestressing force cored slab, the utility model discloses a technical scheme as follows:

an adjustable fixing device for mounting a prestressed hollow slab is used for vertically and fixedly mounting a bottom prestressed hollow slab and a vertical prestressed hollow slab and adjusting the flatness of a wall surface. The adjustable fixing device comprises a prestressed hollow slab mounting assembly, a first adjusting assembly, a second adjusting assembly and connecting rods, wherein the prestressed hollow slab mounting assembly is arranged at the joint of the bottom prestressed hollow slab and the vertical prestressed hollow slab and is distributed along the joint direction;

the first adjusting assembly comprises a T-shaped internal thread sleeve embedded in the bottom prestressed hollow slab, a first screw rod with the bottom sleeved in the T-shaped internal thread sleeve by adopting threads, and a third screw rod with one end connected with the top of the first screw rod by adopting a bolt and the other end connected with the connecting rod by adopting threads; and through holes connected by bolts are formed in the first screw rod and the third screw rod.

Furthermore, the prestressed hollow slab mounting assembly is of an inclined handle connecting structure and comprises an I-shaped steel column which is arranged at the joint of the bottom prestressed hollow slab and the vertical prestressed hollow slab and is arranged along the joint direction, a first connecting assembly which is arranged in the bottom prestressed hollow slab and is connected with the bottom of the I-shaped steel column, a second connecting assembly which is arranged in the vertical prestressed hollow slab, is connected with the side edge of the I-shaped steel column and has the same structure as the first connecting assembly, and a foaming filling layer which is arranged between the I-shaped steel column and the bottom prestressed hollow slab;

furthermore, the first connecting component comprises a supporting plate which is installed in the bottom prestressed hollow slab and is attached to the bottom of the I-shaped steel column, an inclined handle which is embedded in the bottom prestressed hollow slab and is in a trapezoid shape, a plurality of hollow nails which vertically penetrate through the inclined handle and are arranged in the bottom prestressed hollow slab, a clamping head which is connected with the top of the inclined handle, is arranged on the outer side of the bottom prestressed hollow slab and is in a T shape, and a C-shaped clamping groove which is matched with the clamping head in a sleeved mode and is welded to the bottom of the I-shaped steel column.

Furthermore, a first L-shaped steel is arranged between the second connecting component and the I-shaped steel column; the inner side of the first L-shaped steel is connected with the I-shaped steel column in a welded mode, and the outer side of the first L-shaped steel is connected with the C-shaped clamping groove of the second connecting assembly in a welded mode.

Furthermore, the prestressed hollow slab mounting assembly is of an inclined handle connecting structure and comprises a concrete rectangular column, a first connecting assembly, a second connecting assembly and a foaming filling layer, wherein the concrete rectangular column is arranged at the joint of the bottom prestressed hollow slab and the vertical prestressed hollow slab and is distributed along the joint direction, the first connecting assembly is arranged in the bottom prestressed hollow slab and is connected with the bottom of the concrete rectangular column, the second connecting assembly is arranged in the vertical prestressed hollow slab, is connected with the side edge of the concrete rectangular column and has the same structure as the first connecting assembly, and the foaming filling layer is arranged between the concrete rectangular column and the vertical prestressed hollow slab and between the concrete rectangular column and the bottom prestressed hollow slab;

first connecting element is including pre-buried in the hollow slab of bottom prestressing force, and with the backup pad of the bottom laminating of mixing earth rectangle post, pre-buried in the hollow slab of bottom prestressing force, and be trapezoidal oblique handle, run through perpendicularly oblique handle setting, and both ends are all arranged in the hollow slab of bottom prestressing force, be used for the pre-buried fixed several hollow nails of oblique handle, with the oblique handle is connected, is arranged in between concrete rectangle post and the hollow slab of bottom prestressing force, and is the dop of T shape, with dop accordant connection's C type draw-in groove, with C type draw-in groove welded draw-in groove connecting plate, and one end twist mix in the earth rectangle post, and the other end is connected with the draw-in groove connecting plate, be used for fixing the draw-in groove connecting plate mix several screw nails on the earth rectangle post.

Further, the prestressed hollow slab mounting assembly is a steel pipe anchor connecting structure and comprises an I-shaped steel column arranged at the joint of the bottom prestressed hollow slab and the vertical prestressed hollow slab, a first connecting assembly arranged in the bottom prestressed hollow slab and connected with the bottom of the I-shaped steel column, and a second connecting assembly arranged in the vertical prestressed hollow slab, connected with the side edge of the I-shaped steel column and having the same structure as the first connecting assembly;

the first connecting assembly comprises a supporting plate which is pre-embedded in the bottom prestressed hollow slab, second L-shaped steel, an S plate and a steel pipe anchor, wherein the outer side edge of the second L-shaped steel is welded on the I-shaped steel column, the bottom edge of the second L-shaped steel is attached to the bottom prestressed hollow slab, the second L-shaped steel corresponds to the supporting plate in position, one end of the S plate is in compression joint with the second L-shaped steel, and the other end of the S plate penetrates through the S plate and is arranged and implanted.

Furthermore, the steel column further comprises a third L-shaped steel, the bottom edge of the third L-shaped steel is welded on the I-shaped steel column, and the outer side edge of the third L-shaped steel is attached to the outer side edge of the second L-shaped steel.

Further, the hollow slab installation component of prestressing force is gib head bolted connection structure, first connecting element is including pre-buried backup pad in the hollow slab of bottom prestressing force is seted up on the hollow slab of bottom prestressing force, and the notch that corresponds with the position of backup pad, and the outside limit welds on I-shaped steel post, the second L shaped steel of base laminating in the backup pad, and one end is detained on second L shaped steel, and the other end runs through the backup pad and extends to in the notch, and is the gib head bolt of L shape to and adopt the screw thread cover to establish on the gib head bolt, and arrange the intraoral coupling nut in the notch in.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses set up connecting rod, T type internal thread sleeve, first screw rod and third screw rod ingeniously, can strengthen the wallboard wholeness, can adjust the roughness of side fascia again. The utility model discloses a silk sleeve widens the processing in pre-buried T type to increase built-in fitting and concrete area of contact, let the structure more stable. Additionally, the utility model discloses set up the interval of both ends threaded connecting rod adjustment third screw rod to realize the adjustment of the wall flatness of prestressing force cored slab. To sum up, the utility model has the advantages of simple structure, connect reliably, the adjustment is convenient, have very high practical value and spreading value in prestressing force cored slab installation technical field.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of the present invention (embodiment one).

Fig. 2 is a schematic structural diagram of the present invention (embodiment two).

Fig. 3 is a schematic structural diagram of the present invention (embodiment three).

Fig. 4 is a schematic structural diagram of the present invention (embodiment four).

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-bottom prestressed hollow slab, 2-vertical prestressed hollow slab, 3-first connecting component, 4-second connecting component, 5-I-shaped steel column, 6-foam filling layer, 7-first adjusting component, 8-second adjusting component, 9-connecting rod, 10-concrete rectangular column, 31-supporting plate, 32-inclined handle, 33-hollow nail, 34-clamping head, 35-C-shaped clamping groove, 36-clamping groove connecting plate, 37-threaded nail, 41-first L-shaped steel, 71-T-shaped internal thread sleeve, 72-first screw rod, 73-third screw rod, 301-notch, 303-hook head bolt, 304-second L-shaped steel, 305-connecting nut, 306-third L-shaped steel, 311-steel pipe anchor, 312-S plate.

Detailed Description

To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

As shown in fig. 1, the present embodiment provides an adjustable fixing device for the installation of a prestressed hollow slab, which is used for vertically and fixedly installing a bottom prestressed hollow slab 1 and a vertical prestressed hollow slab 2 and adjusting the flatness of a wall surface. In the present embodiment, the terms "first", "second", and the like are used only for distinguishing the similar components, and are not to be construed as limiting the scope of protection. In the present embodiment, the terms of orientation such as "bottom", "top", "peripheral edge", "center", and the like are explained based on the drawings

Specifically, the adjustable fixing device of this embodiment includes a prestressed hollow slab mounting assembly disposed at the joint of the bottom prestressed hollow slab 1 and the vertical prestressed hollow slab 2 and arranged along the joint direction, a first adjusting assembly 7 disposed in the bottom prestressed hollow slab 1, a second adjusting assembly 8 disposed in the vertical prestressed hollow slab 2 and having the same structure as the first adjusting assembly 7, and a connecting rod 9 having two ends connected with the first adjusting assembly 7 and the second adjusting assembly 8 in a one-to-one correspondence manner by using threads. Wherein, first adjusting part 7 is including pre-buried silk sleeve 71 in the T type in the hollow slab 1 of bottom prestressing force, and the bottom adopts the screw thread cover to establish first screw rod 72 in silk sleeve 71 in the T type to and one end and the top of first screw rod 72 adopt bolted connection, and the other end and connecting rod 9 adopt threaded connection's third screw rod 73. Through holes connected by bolts are formed in the first screw rod 72 and the third screw rod 73.

The prestressed hollow slab mounting assembly of the present embodiment is an inclined-handle connection structure, and includes an i-shaped steel column 5 disposed at a joint between the bottom prestressed hollow slab 1 and the vertical prestressed hollow slab 2 and arranged along a joint direction, a first connection assembly 3 disposed in the bottom prestressed hollow slab 1 and connected to a bottom of the i-shaped steel column 5, a second connection assembly 4 disposed in the vertical prestressed hollow slab 2, connected to a side edge of the i-shaped steel column 5 and having a structure identical to that of the first connection assembly 3, and a foam filling layer 6 disposed between the i-shaped steel column 5 and the bottom prestressed hollow slab 1. The first connecting assembly 3 includes a support plate 31 installed in the bottom prestressed hollow slab 1 and attached to the bottom of the i-shaped steel column 5, an inclined handle 32 embedded in the bottom prestressed hollow slab 1 and having a trapezoidal shape, a plurality of hollow nails 33 vertically penetrating through the inclined handle 32 and disposed in the bottom prestressed hollow slab 1, a chuck 34 connected to the top of the inclined handle 32, disposed on the outer side of the bottom prestressed hollow slab 1 and having a T-shape, and a C-shaped clamping groove 35 sleeved with the chuck 34 and welded to the bottom of the i-shaped steel column 5. In addition, a first L-section 41 is arranged between the second connecting assembly 4 and the section steel column 5. When the connecting component is installed, the inner side of the first L-shaped steel 41 is connected with the i-shaped steel column 5 in a welding mode, and the outer side of the first L-shaped steel 41 is connected with the C-shaped clamping groove of the second connecting component 4 in a welding mode.

Example 2

As shown in fig. 2, the present embodiment provides an adjustable fixing device for prestressed hollow slab installation, which is different from embodiment 1 in that: the hollow slab installation component of prestressing force is sloping handle connection structure, and it sets up including setting up at the hollow slab 1 of bottom prestressing force and the hollow slab 2 combination department of vertical prestressing force and the muddy earth rectangle post 10 that lays along combining the direction in the hollow slab 1 of bottom prestressing force and with the first coupling assembling 3 that muddy earth rectangle post 10 bottom is connected sets up in the hollow slab 2 of vertical prestressing force, with mix earth rectangle post 10 side and connect, and with the same second coupling assembling 4 of first coupling assembling 3 structure to and set up between muddy earth rectangle post 10 and vertical prestressing force hollow slab 2, mix earth rectangle post 10 and the foaming filling layer 6 between the hollow slab 1 of bottom prestressing force. Wherein, the first connecting component 3 comprises a supporting plate 31 which is pre-embedded in the bottom prestressed hollow slab 1 and is attached to the bottom of the concrete rectangular column 10, an inclined handle 32 which is pre-embedded in the bottom prestressed hollow slab 1 and is in a ladder shape, a plurality of hollow nails 33 which vertically penetrate through the inclined handle 32, are arranged in the bottom prestressed hollow slab 1 at two ends and are used for pre-embedding and fixing the inclined handle 32, a T-shaped chuck 34 connected with the inclined handle 32 and arranged between the concrete rectangular column 10 and the bottom prestressed hollow slab 1, a C-shaped clamping groove 35 which is matched and connected with the clamping head 34, a clamping groove connecting plate 36 which is welded with the C-shaped clamping groove 35, and a plurality of screw nails 37, one ends of which are screwed into the concrete rectangular column 10, and the other ends of which are connected with the clamping groove connecting plate 36, and are used for fixing the clamping groove connecting plate 36 on the concrete rectangular column 10.

Example 3

As shown in fig. 3, the present embodiment provides an adjustable fixing device for prestressed hollow slab installation, which is different from embodiment 1 in that: the prestressed hollow slab mounting assembly is a steel pipe anchor connecting structure and comprises an I-shaped steel column 5 arranged at the joint of a bottom prestressed hollow slab 1 and a vertical prestressed hollow slab 2, a first connecting assembly 3 arranged in the bottom prestressed hollow slab 1 and connected with the bottom of the I-shaped steel column 5, and a second connecting assembly 4 arranged in the vertical prestressed hollow slab 2, connected with the side edge of the I-shaped steel column 5 and having the same structure as the first connecting assembly 3. The first connecting assembly 3 includes a support plate 31 pre-embedded in the bottom prestressed hollow slab 1, a second L-shaped steel 304 whose outer side edge is welded to the i-shaped steel column 5, whose bottom edge is attached to the bottom prestressed hollow slab 1 and whose position corresponds to the support plate 31, an S-plate 312 whose one end is crimped to the second L-shaped steel 304, a steel pipe anchor 311 which is arranged to penetrate the other end of the S-plate 312 and is implanted into the support plate 31, and a third L-shaped steel 306 whose bottom edge is welded to the i-shaped steel column 5 and whose outer side edge is attached to the outer side edge of the second L-shaped steel 304.

Example 4

As shown in fig. 4, the present embodiment provides an adjustable fixing device for prestressed hollow slab installation, which is different from embodiment 3 in that: the prestressed hollow slab mounting component is a hook bolt connecting structure, wherein the first connecting component 3 comprises a support plate 31 pre-embedded in the bottom prestressed hollow slab 1, a notch 301 which is arranged on the bottom prestressed hollow slab 1 and corresponds to the position of the support plate 31, a second L-shaped steel 304 with an outer side edge welded on the i-shaped steel column 5 and a bottom edge attached on the support plate 31, a hook bolt 303 with one end buckled on the second L-shaped steel 304 and the other end penetrating through the support plate 31 and extending into the notch 301 and being in an L shape, a connecting nut 305 which is sleeved on the hook bolt 303 by threads and is arranged in the notch 301, and a third L-shaped steel 306 with a bottom edge welded on the i-shaped steel column 5 and an outer side edge attached with an outer side edge of the second L-shaped steel 304.

To sum up, the utility model discloses a set up the mode of adjustable internal thread telescopic link pole to the adjustment of later stage wallboard roughness. Compared with the prior art, the prestressed hollow slab has substantial characteristics and progress, and has high practical value and popularization value in the technical field of prestressed hollow slab installation.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection scope of the present invention.

Claims

1. An adjustable fixing device for mounting a prestressed hollow slab is used for vertically and fixedly mounting a bottom prestressed hollow slab (1) and a vertical prestressed hollow slab (2) and adjusting the flatness of a wall surface, and is characterized by comprising a prestressed hollow slab mounting assembly, a first adjusting assembly (7), a second adjusting assembly (8) and connecting rods (9), wherein the prestressed hollow slab mounting assembly is arranged at the joint of the bottom prestressed hollow slab (1) and the vertical prestressed hollow slab (2) and is distributed along the joint direction, the first adjusting assembly (7) is arranged in the bottom prestressed hollow slab (1), the second adjusting assembly (8) is arranged in the vertical prestressed hollow slab (2) and has the same structure as the first adjusting assembly (7), and the connecting rods (9) are correspondingly connected with the first adjusting assembly (7) and the second adjusting assembly (8) at two ends in a one-to-one manner by adopting threads;

the first adjusting assembly (7) comprises a T-shaped internal thread sleeve (71) pre-embedded in the bottom prestress hollow plate (1), a first screw rod (72) with the bottom sleeved in the T-shaped internal thread sleeve (71) in a threaded manner, and a third screw rod (73) with one end connected with the top of the first screw rod (72) in a bolt manner and the other end connected with the connecting rod (9) in a threaded manner; and through holes connected by bolts are formed in the first screw rod (72) and the third screw rod (73).

2. The adjustable fixing device for prestressed hollow slab installation according to claim 1, wherein the prestressed hollow slab installation assembly is a skew-shank connection structure, which comprises an i-shaped steel column (5) disposed at the junction of the bottom prestressed hollow slab (1) and the vertical prestressed hollow slab (2) and arranged along the junction direction, a first connection assembly (3) disposed in the bottom prestressed hollow slab (1) and connected to the bottom of the steel column (5), a second connection assembly (4) disposed in the vertical prestressed hollow slab (2), connected to the side edge of the i-shaped steel column (5) and having the same structure as the first connection assembly (3), and a foam filling layer (6) disposed between the i-shaped steel column (5) and the bottom prestressed hollow slab (1).

3. The adjustable fixing device for the prestressed hollow slab installation according to claim 2, wherein the first connecting assembly (3) comprises a supporting plate (31) installed in the bottom prestressed hollow slab (1) and attached to the bottom of the i-shaped steel column (5), a tapered shank (32) embedded in the bottom prestressed hollow slab (1) and having a ladder shape, a plurality of hollow nails (33) vertically penetrating through the tapered shank (32) and disposed in the bottom prestressed hollow slab (1), a chuck (34) connected to the top of the tapered shank (32), disposed outside the bottom prestressed hollow slab (1) and having a T shape, and a C-shaped clamping groove (35) sleeved with the chuck (34) and welded to the bottom of the i-shaped steel column (5).

4. The adjustable fixing device for prestressed hollow slab installation according to claim 3, characterized in that a first L-shaped steel (41) is arranged between the second connecting assembly (4) and the I-shaped steel column (5); the inner side of the first L-shaped steel (41) is connected with the I-shaped steel column (5) in a welding mode, and the outer side of the first L-shaped steel (41) is connected with the C-shaped clamping groove of the second connecting assembly (4) in a welding mode.

5. An adjustable fixture for prestressed hollow slab installation according to claim 1, it is characterized in that the prestressed hollow slab mounting component is an inclined handle connecting structure and comprises a concrete rectangular column (10) which is arranged at the joint of the bottom prestressed hollow slab (1) and the vertical prestressed hollow slab (2) and is arranged along the joint direction, a first connecting component (3) which is arranged in the bottom prestressed hollow slab (1) and is connected with the bottom of the concrete rectangular column (10), a second connecting component (4) which is arranged in the vertical prestressed hollow slab (2), is connected with the side edge of the concrete rectangular column (10) and has the same structure with the first connecting component (3), and the foaming filling layers (6) are arranged between the concrete rectangular column (10) and the vertical prestressed hollow slab (2) and between the concrete rectangular column (10) and the bottom prestressed hollow slab (1);

the first connecting assembly (3) comprises a supporting plate (31) which is embedded in the bottom prestressed hollow slab (1) and is attached to the bottom of the concrete rectangular column (10), an inclined handle (32) which is embedded in the bottom prestressed hollow slab (1) and is in a trapezoid shape, a plurality of hollow nails (33) which are arranged in the bottom prestressed hollow slab (1) and used for embedding and fixing the inclined handle (32), a clamping head (34) which is connected with the inclined handle (32) and is arranged between the concrete rectangular column (10) and the bottom prestressed hollow slab (1) and is in a T shape, a C-shaped clamping groove (35) connected with the clamping head (34) in a matched mode, a clamping groove connecting plate (36) welded with the C-shaped clamping groove (35), and a clamping groove connecting plate (36) connected with the other end of the concrete rectangular column (10) in a screwed mode, wherein the inclined handle (32) is vertically penetrated through the inclined handle (32), and the clamping head (34) is arranged at two ends of the inclined handle (32, And the screw nails (37) are used for fixing the clamping groove connecting plates (36) on the concrete rectangular column (10).

6. The adjustable fixing device for prestressed hollow slab installation according to claim 1, wherein the prestressed hollow slab installation assembly is a steel pipe anchor connection structure, which comprises an i-shaped steel column (5) disposed at the junction of the bottom prestressed hollow slab (1) and the vertical prestressed hollow slab (2), a first connection assembly (3) disposed in the bottom prestressed hollow slab (1) and connected to the bottom of the i-shaped steel column (5), and a second connection assembly (4) disposed in the vertical prestressed hollow slab (2), connected to the side of the i-shaped steel column (5) and structurally identical to the first connection assembly (3);

the first connecting component (3) comprises a supporting plate (31) which is pre-embedded in the bottom prestressed hollow slab (1), second L-shaped steel (304) which is welded on the I-shaped steel column (5) at the outer side edge, is attached to the bottom prestressed hollow slab (1) at the bottom edge and corresponds to the supporting plate (31), an S plate (312) with one end being in crimping connection with the second L-shaped steel (304), and a steel pipe anchor (311) which penetrates through the other end of the S plate (312) and is arranged and implanted in the supporting plate (31).

7. The adjustable fixing device for the installation of the prestressed hollow slab as claimed in claim 6, characterized in that it further comprises a third L-shaped steel (306) welded at its bottom edge to the section steel column (5) and attached at its outer edge to the outer edge of the second L-shaped steel (304).

8. An adjustable fixture for prestressed hollow slab installation according to claim 6, the prestressed hollow slab mounting structure is characterized in that the prestressed hollow slab mounting assembly is a hook bolt connecting structure, the first connecting assembly (3) comprises a support plate (31) pre-embedded in the bottom prestressed hollow slab (1), a notch (301) which is arranged on the bottom prestressed hollow slab (1) and corresponds to the support plate (31), a second L-shaped steel (304) with the outer side edge welded on the I-shaped steel column (5) and the bottom edge attached to the support plate (31), and a hook bolt (303) with one end buckled on the second L-shaped steel (304) and the other end penetrating through the support plate (31) and extending into the notch (301) and being in an L shape, and a connecting nut (305) which is sleeved on the hook head bolt (303) by adopting threads and is arranged in the notch (301).

9. The adjustable fixing device for the installation of the prestressed hollow slab as claimed in claim 8, characterized in that it further comprises a third L-shaped steel (306) welded at its bottom edge to the section steel column (5) and attached at its outer edge to the outer edge of the second L-shaped steel (304).