Temporary support structure and construction method of precast outer wall without floor

Abstract

This application discloses a temporary support structure and construction method for prefabricated exterior walls without floor slabs, relating to the technical field of building construction. The temporary support structure includes at least one set of diagonal braces and positioning components. Each set of diagonal braces has two components: a first diagonal brace and a second diagonal brace. The first diagonal brace supports the upper side of the prefabricated exterior wall, and the second diagonal brace supports the lower side of the prefabricated exterior wall. The positioning components include a mounting base, a connecting base, a transmitter, and a receiver. There are two mounting bases: a first mounting base and a second mounting base. The first mounting base is mounted on the first diagonal brace and rotatably connected to the connecting base, and the transmitter is mounted on the connecting base. The second mounting base is mounted on the second diagonal brace, and the receiver is mounted on the second mounting base. The transmitter emits laser light, and the receiver receives laser light. The transmitter, under its own weight, is kept vertically downward through the connecting base, ensuring that the laser light is emitted vertically downward. This application improves the construction efficiency of prefabricated exterior walls.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a temporary support structure and construction method for a prefabricated exterior wall without floor slabs. Background Technology

[0002] With the development of industrialized construction, prefabricated buildings have been widely used due to their advantages such as controllable component quality, high construction efficiency, and less on-site wet work. In projects such as industrial plants, research buildings, and large-space public buildings, multi-story, open-plan areas without intermediate floor slabs are often set up to meet functional requirements. The external envelope of such areas is usually formed by installing prefabricated exterior wall panels.

[0003] Currently, when constructing precast exterior walls in hollow, floorless areas, since there are no floor slabs or other structures on the inner side of the wall to serve as a support and anchoring foundation, a temporary support structure is usually first erected on the inner side of the wall. Then, the two ends of the diagonal braces are connected to the precast exterior wall and the temporary support structure respectively, thereby forming a temporary support structure. The precast exterior wall is supported and positioned by adjustable diagonal braces.

[0004] However, in order to ensure that the verticality of the prefabricated exterior wall meets the design requirements during installation, the length of the diagonal braces needs to be manually adjusted to adjust the wall. After each adjustment, the verticality needs to be remeasured and checked, which is inefficient and affects the construction efficiency. Summary of the Invention

[0005] To improve the construction efficiency of prefabricated exterior walls without floor slabs, this application provides a temporary support structure and construction method for prefabricated exterior walls without floor slabs.

[0006] Firstly, this application provides a temporary support structure for a prefabricated exterior wall without floor slabs, employing the following technical solution:

[0007] A temporary support structure for a prefabricated exterior wall without floor slabs includes at least one set of diagonal braces and positioning components; Each set of diagonal braces has two components: a first diagonal brace and a second diagonal brace. The first diagonal brace is used to connect with the support frame to support the upper side of the precast exterior wall. The second diagonal brace is used to connect with the support frame to support the lower side of the precast exterior wall. The positioning component includes a mounting base, a connecting base, a transmitter, and a receiver; The mounting base is provided in two parts, namely a first mounting base and a second mounting base; the first mounting base is disposed on the first diagonal brace, and the connecting base is rotatably connected to the first mounting base; the transmitter is disposed on the connecting base; the second mounting base is disposed on the second diagonal brace, and the receiver is disposed on the second mounting base; the transmitter is used to emit laser light, and the receiver is used to receive laser light. The transmitting element maintains a vertically downward state under its own weight through the connecting seat, so that the laser is emitted vertically downward.

[0008] By adopting the above technical solution, reliable temporary fixation of the precast exterior wall is achieved by using two diagonal braces that support the upper and lower sides of the precast exterior wall respectively. At the same time, since the connecting seat is rotatably connected to the first mounting seat, the transmitter can automatically adjust to a vertically downward state under its own weight, thereby cooperating with the receiver to determine whether the precast exterior wall is in a vertical state. This simplifies the process of re-measuring the verticality of the wall after each adjustment of the diagonal braces and improves construction efficiency.

[0009] Optionally, the first mounting base is used to adjust the position of the transmitter in the horizontal plane, and the second mounting base is used to adjust the position of the receiver in the horizontal plane.

[0010] By adopting the above technical solution, the transmitter can move in the horizontal plane via the first mounting base, and the receiver can move in the horizontal plane via the second mounting base, thereby reducing the possibility of the support frame blocking the laser propagation path between the transmitter and receiver and improving the stability of the measurement results.

[0011] Optionally, the mounting base includes a base, a first slider, a second slider, and a positioning locking element; The base is connected to the diagonal brace; the first slider is slidably connected to the base, the second slider is slidably connected to the first slider, and the sliding directions of the first slider and the second slider are perpendicular; the connecting seat is disposed on the second slider of the first mounting seat, and the receiving component is disposed on the second slider of the second mounting seat; The positioning locking component is used to lock the positions of the first slider and the second slider respectively.

[0012] By adopting the above technical solution, the first and second sliders with perpendicular sliding directions are used to allow the transmitter and receiver to move in the horizontal plane respectively, and the positions of the transmitter and receiver are locked by the positioning locking member, reducing the possibility of the transmitter and receiver moving during operation.

[0013] Optionally, the connecting seat includes a ball head and a ball seat; the ball seat is connected to the first mounting seat, the ball head is rotatably connected to the ball seat, and the ball head is connected to the launching element.

[0014] By adopting the above technical solution, the ball head structure can realize multi-directional free rotation of the connecting seat relative to the first mounting seat, so that the launching components can swing freely to a vertically downward state by their own gravity.

[0015] Optionally, the diagonal brace includes a support base, an adjusting rod, an adjusting cylinder, and an outer tube; The support base is used to connect with the precast exterior wall, and the mounting base is disposed on the support base; The adjusting rod is rotatably connected to the support base, the adjusting cylinder is threadedly connected to the adjusting rod, the adjusting cylinder is rotatably arranged relative to the outer tube, and the outer tube is used to connect to the support frame; When the support base is connected to the precast exterior wall and the outer tube is connected to the support frame, the adjusting cylinder rotates, causing the adjusting rod to move towards or away from the outer tube.

[0016] By adopting the above technical solution, with the support base connected to the precast exterior wall and the outer pipe connected to the support frame, rotating the adjusting cylinder can drive the adjusting rod to extend and retract through the threaded transmission, thereby adjusting the overall length of the diagonal brace and thus adjusting the verticality of the precast exterior wall.

[0017] Optionally, the diagonal brace may further include an inner tube and an adjusting locking element; One end of the inner tube is rotatably connected to the adjusting cylinder, and the other end is fitted inside the outer tube; the adjusting locking component is used to lock the relative position of the inner tube and the outer tube.

[0018] By adopting the above technical solution, the inner tube is sleeved inside the outer tube, which realizes a wide range of coarse adjustment of the diagonal brace length. This, combined with the fine adjustment of the thread between the adjusting rod and the adjusting cylinder, improves the efficiency of the diagonal brace adjustment.

[0019] Optionally, the adjusting cylinder is provided with an operating handle, which is used to drive the adjusting cylinder to rotate.

[0020] By adopting the above technical solution, the operator can rotate the adjusting cylinder by operating the handle, which improves the operating efficiency of adjusting the length of the diagonal brace.

[0021] Optionally, a counterweight is provided on the connecting seat.

[0022] By adopting the above technical solution, the counterweight increases the overall weight of the connecting seat, enabling the launcher to be stabilized in a vertically downward state under its own weight.

[0023] Secondly, this application provides a construction method for a precast exterior wall without floor slabs, which uses the aforementioned temporary support structure and adopts the following technical solution:

[0024] A construction method for prefabricated exterior walls without floor slabs includes the following steps: S1. Erect the support frame and hoist the prefabricated exterior wall to the installation position; S2. Connect the first diagonal brace to the upper side of the precast exterior wall, connect the second diagonal brace to the lower side of the precast exterior wall, and connect the first diagonal brace and the second diagonal brace to the support frame respectively to temporarily support and fix the precast exterior wall. S3. Adjust the lengths of the first and second diagonal braces respectively so that the laser emitted by the transmitter is aligned with the reference position of the receiver to determine that the prefabricated exterior wall is in a vertical state.

[0025] By adopting the above technical solution, and utilizing the characteristic that the transmitter relies on its own weight to maintain vertical downward laser emission, the verticality of the precast exterior wall can be judged by whether the laser is aligned with the receiver. Construction workers only need to adjust the length of the first and second diagonal braces and observe the laser alignment to complete the verticality adjustment. There is no need to use additional measuring tools for verification, which simplifies the verticality adjustment process of the precast exterior wall and improves construction efficiency.

[0026] Optionally, in step S3, before adjusting the lengths of the first and second diagonal braces, the transmitter and receiver are moved synchronously in the same direction by the corresponding first and second mounting seats to avoid the support frame blocking the laser propagation path.

[0027] By adopting the above technical solution, when the support frame blocks the laser propagation path between the transmitter and receiver, the first mounting base and the second mounting base enable the transmitter and receiver to move synchronously and the same distance in the same direction, thereby reducing the possibility of the support frame blocking the laser.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By using two diagonal braces that support the upper and lower sides of the precast exterior wall respectively, a reliable temporary fixation of the precast exterior wall can be achieved; at the same time, since the connecting seat is rotatably connected to the first mounting seat, the transmitter can automatically adjust to a vertically downward state under its own weight, thereby cooperating with the receiver to determine whether the precast exterior wall is in a vertical state, simplifying the process of manually re-measuring the verticality of the wall after each adjustment of the diagonal braces, and improving construction efficiency;

[0030] 2. By setting a first mounting base and a second mounting base, the transmitter can move in the horizontal plane via the first mounting base, and the receiver can move in the horizontal plane via the second mounting base, thereby reducing the possibility of the support frame blocking the laser propagation path between the transmitter and receiver and improving the stability of the measurement results;

[0031] 3. Utilizing the characteristic that the transmitter maintains vertical downward laser emission by its own weight, the alignment of the laser with the receiver is used as the basis for judging the verticality of the precast exterior wall. Construction workers only need to adjust the length of the first and second diagonal braces and observe the laser alignment to complete the verticality adjustment. There is no need to use additional measuring tools for verification, which simplifies the precast exterior wall verticality adjustment process and improves construction efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0033] Figure 2 This is a structural schematic diagram of the diagonal brace and prefabricated exterior wall in Embodiment 1 of this application;

[0034] Figure 3 This is a schematic diagram of the structure of the first diagonal brace, the first mounting base, and the launching element in Embodiment 1 of this application;

[0035] Figure 4 This is an exploded view of the diagonal brace structure in Embodiment 1 of this application;

[0036] Figure 5 This is a schematic diagram of the structure of the first mounting base and the launching element in Embodiment 1 of this application;

[0037] Figure 6 This is an exploded structural diagram of the first mounting base, connecting base, and launching element in Embodiment 1 of this application;

[0038] Figure 7 This is a schematic diagram of the structure of the second mounting base and the receiving component in Embodiment 1 of this application.

[0039] In the diagram: 1. Diagonal brace; 11. Support base; 12. Adjusting rod; 13. Adjusting cylinder; 14. Outer tube; 15. Inner tube; 16. Adjusting locking element; 17. Operating handle; 18. Connecting hole; 2. Positioning assembly; 21. Mounting base; 211. Base; 212. First slider; 213. Second slider; 214. Positioning locking element; 22. Connecting base; 221. Ball head; 222. Ball seat; 223. Counterweight; 23. Launching element; 24. Receiving element; 4. Precast exterior wall; 5. Support frame; 101. First diagonal brace; 102. Second diagonal brace; 201. First mounting base; 202. Second mounting base. Detailed Implementation

[0040] The following combination Figures 1-7 This application will be described in further detail.

[0041] Example 1

[0042] Embodiment 1 of this application discloses a temporary support structure for prefabricated exterior walls without floor slabs. For example... Figure 1 and Figure 2As shown, the temporary support structure includes diagonal braces 1 and positioning components 2. In this embodiment 1, two sets of diagonal braces 1 are installed to support the prefabricated exterior wall 4. Each set includes two diagonal braces 1, namely a first diagonal brace 101 and a second diagonal brace 102, which have the same structure. The first diagonal brace 101 is used to connect with the support frame 5 to support the upper side of the prefabricated exterior wall 4, and the second diagonal brace 102 is used to connect with the support frame 5 to support the lower side of the prefabricated exterior wall 4. In addition, the prefabricated exterior wall 4 is pre-embedded with threaded sleeves during factory prefabrication, and the support frame 5 can be a jig, assembled from steel pipes and fasteners.

[0043] like Figure 3 and Figure 4 As shown, the diagonal brace 1 includes a support base 11, an adjusting rod 12, an adjusting cylinder 13, an outer tube 14, an inner tube 15, and an adjusting locking element 16.

[0044] Specifically, such as Figure 3 and Figure 4 As shown, the support base 11 is bolted to the threaded sleeve embedded in the precast exterior wall 4. One end of the adjusting rod 12 is rotatably connected to the support base 11, and the other end is threaded to the adjusting cylinder 13. The end of the adjusting cylinder 13 away from the adjusting rod 12 is rotatably connected to the inner tube 15. The inner tube 15 is fitted inside the outer tube 14, and both the inner tube 15 and the outer tube 14 have multiple corresponding connecting holes 18. After the connecting holes 18 of the inner tube 15 and the outer tube 14 are aligned, the adjusting locking member 16 passes through the connecting holes 18 of both the inner tube 15 and the outer tube 14, thereby fixing the relative positions of the inner tube 15 and the outer tube 14. Preferably, the adjusting locking member 16 is a bolt.

[0045] like Figure 5 , Figure 6 and Figure 7 As shown, the positioning component 2 includes a mounting base 21, a connecting base 22, a transmitter 23, and a receiver 24. The transmitter 23 emits laser light, and the receiver 24 receives laser light. Preferably, the transmitter 23 is a laser emitter, and the receiver 24 is a graduated laser receiver disk. The laser receiver disk has a crosshair with a center point as the reference position, allowing the operator to observe the direction and distance of the laser spot's offset from the center of the scale.

[0046] Specifically, such as Figure 6 and Figure 7As shown, the mounting base 21 includes a base 211, a first slider 212, a second slider 213, and a positioning locking element 214. The base 211 is fixedly connected to the support base 11, the first slider 212 is slidably connected to the base 211, and the second slider 213 is slidably connected to the first slider 212. The sliding directions of the first slider 212 and the second slider 213 are perpendicular to each other. Positioning locking elements 214 are respectively installed on the first slider 212 and the second slider 213. Preferably, the positioning locking element 214 is a tightening bolt. The first slider 212 is tightened against the base 211 by the corresponding positioning locking element 214, thereby fixing the position of the first slider 212; the second slider 213 is tightened against the first slider 212 by the corresponding positioning locking element 214, thereby fixing the position of the second slider 213.

[0047] like Figure 6 As shown, the connecting base 22 includes a ball head 221 and a ball seat 222. The ball seat 222 is fixedly connected to the second slider 213, and the ball head 221 is rotatably connected to the ball seat 222. The launching member 23 is fixedly connected to the ball head 221. On the first mounting base 201, the launching member 23 can move in the horizontal plane through the cooperation of the first slider 212 and the second slider 213. On the second mounting base 202, the receiving member 24 is fixedly mounted on the corresponding second slider 213. Through the cooperation of the corresponding first slider 212 and the second slider 213, the receiving member 24 can move in the horizontal plane.

[0048] In addition, since the center of gravity of the ball head 221 and the emitter 23 is located below the center of rotation, under the action of gravity, the connecting seat 22 will automatically rotate to a stable state where the emitter 23 is vertically downward, so that the laser emitted by the emitter 23 is maintained in the vertically downward direction.

[0049] Furthermore, a counterweight 223 is fixedly connected to the connecting base 22. The counterweight 223 increases the overall weight of the connecting base 22 and improves the stability of the launching component 23 in a vertically downward state.

[0050] It should be noted that when installing the diagonal brace 1 to support the precast exterior wall 4, the support base 11 is first fixed to the precast exterior wall 4 with bolts. Then, the relative positions of the inner tube 15 and the outer tube 14 are adjusted so that the outer tube 14 is moved to the position where it connects with the support frame 5, making it easy for the diagonal brace 1 to be fixed to the support frame 5 with fasteners. At this time, since the positions of the pre-embedded threaded sleeves on the upper and lower sides of the precast exterior wall are consistent, after the first diagonal brace 101 and the second diagonal brace 102 are installed, the positions of the first mounting base 201 and the second mounting base 202 correspond along the height direction of the precast exterior wall.

[0051] Then, the operator rotates the adjusting cylinder 13, causing the adjusting rod 12 to move axially towards or away from the outer tube 14, thereby adjusting the overall length of the diagonal brace 1 and thus adjusting the verticality of the precast exterior wall 4. During adjustment, the light spot received by the receiver 24 from the transmitter 23 is observed. When the light spot is located at the reference position of the receiver 24, the verticality of the precast exterior wall 4 meets the requirements. By observing the position of the light spot, construction personnel can determine the verticality of the precast exterior wall 4, thus reducing the need for repeated measurements and improving construction efficiency.

[0052] In addition, before rotating the adjusting cylinder 13, the positions of the transmitter 23 and receiver 24 are adjusted by the corresponding first slider 212 and second slider 213, so that the laser emitted by the transmitter 23 can avoid the steel pipe of the support frame 5, thus improving the reliability of verticality adjustment.

[0053] like Figure 3 As shown, an operating handle 17 is fixed on the outer wall of the adjusting cylinder 13. The operating handle 17 makes it easy for construction personnel to rotate the adjusting cylinder 13, thus improving the convenience of operation.

[0054] The implementation principle of a temporary support structure for a prefabricated exterior wall without floor slabs in Embodiment 1 of this application is as follows:

[0055] When it is necessary to install the diagonal brace 1 to support the precast exterior wall 4, firstly, fix the support base 11 of the first diagonal brace 101 and the second diagonal brace 102 to the threaded sleeves embedded in the precast exterior wall 4 with bolts; then adjust the relative position of the inner tube 15 and the outer tube 14 so that the outer tube 14 is moved to the position connected to the support frame 5, and align the corresponding connection holes 18 on the inner tube 15 and the outer tube 14. Then, lock the inner tube 15 and the outer tube 14 by adjusting the locking piece 16, and then fix the outer tube 14 to the support frame 5 with fasteners to complete the installation of the first diagonal brace 101 and the second diagonal brace 102.

[0056] After the first diagonal brace 101 and the second diagonal brace 102 are installed, when adjusting the verticality of the precast exterior wall 4, the positions of the transmitter 23 and the receiver 24 are adjusted respectively by the first slider 212 and the second slider 213 in the first mounting base 201 and the second mounting base 202, so that the transmitter 23 and the receiver 24 move synchronously in the same direction and the same distance, so that the laser emitted by the transmitter 23 can avoid the steel pipe of the support frame 5 and ensure that the laser propagation path is unobstructed.

[0057] Subsequently, the construction workers rotated the adjusting cylinder 13, and through the threaded transmission between the adjusting cylinder 13 and the adjusting rod 12, the adjusting rod 12 was moved axially, thereby changing the overall length of the diagonal brace 1 and thus adjusting the posture of the precast exterior wall 4.

[0058] During the adjustment process, the transmitter 23 automatically maintains a vertically downward position under the gravity of the ball head 221 and the counterweight 223, and emits laser downwards. Construction personnel determine the verticality of the precast exterior wall 4 by observing the position of the light spot on the receiver 24, and rotate the adjusting cylinder 13 to adjust the length of the diagonal brace 1 until the light spot moves to the reference position.

[0059] Example 2

[0060] Embodiment 2 of this application discloses a construction method for a precast exterior wall without floor slabs, using a temporary support structure as described in Embodiment 1, including the following steps: S1. Erect the support frame 5 and hoist the prefabricated exterior wall 4 to the installation position; S2. Connect the first diagonal brace 101 to the upper side of the precast exterior wall 4, connect the second diagonal brace 102 to the lower side of the precast exterior wall 4, and connect the first diagonal brace 101 and the second diagonal brace 102 to the support frame 5 respectively, so as to temporarily support and fix the precast exterior wall 4. S3. Adjust the lengths of the first diagonal brace 101 and the second diagonal brace 102 respectively, so that the laser emitted by the transmitter 23 is aligned with the reference position of the receiver 24, so as to determine that the prefabricated exterior wall 4 is in a vertical state.

[0061] Specifically, the support frame 5 is first erected in the area without a floor slab inside the precast exterior wall 4, and the precast exterior wall 4 is then hoisted to the vicinity of the installation position using hoisting equipment.

[0062] Then, the support base 11 of the first diagonal brace 101 is connected to the threaded sleeve pre-embedded on the upper side of the precast exterior wall 4 by bolts, and the support base 11 of the second diagonal brace 102 is connected to the threaded sleeve pre-embedded on the lower side of the precast exterior wall 4 by bolts. Next, the relative positions of the inner tube 15 and the outer tube 14 are adjusted so that the outer tube 14 is moved to the position connected to the support frame 5, and the inner tube 15 and the outer tube 14 are locked by adjusting the locking piece 16; then the outer tubes 14 of the first diagonal brace 101 and the second diagonal brace 102 are respectively fixedly connected to the support frame 5 by fasteners.

[0063] After the first diagonal brace 101 and the second diagonal brace 102 are connected and fixed to the support frame 5, the positions of the transmitter 23 and the receiver 24 are adjusted by the first slider 212 and the second slider 213 in the first mounting base 201 and the second mounting base 202, respectively, so that the laser emitted by the transmitter 23 can avoid the rods of the support frame 5. During adjustment, the transmitter 23 and the receiver 24 move synchronously by the same distance in the same direction. Since the transmitter 23 and the receiver 24 move by the same distance in the same direction, their original relative positional relationship remains unchanged. Therefore, the result of the laser aligning with the receiver 24 after the movement can still reflect the vertical state of the prefabricated exterior wall 4. After the movement is completed, the positions of the first slider 212 and the second slider 213 are locked by the corresponding positioning locking pieces 214 on each slider.

[0064] Subsequently, the construction workers rotated the adjusting cylinder 13, and through the threaded transmission between the adjusting cylinder 13 and the adjusting rod 12, adjusted the lengths of the first diagonal brace 101 and the second diagonal brace 102 respectively, and observed the position of the light spot on the receiving component 24. When the light spot is located at the reference position of the receiving component 24, it indicates that the precast exterior wall 4 is in a vertical state, and the verticality adjustment of the precast exterior wall 4 is completed.

[0065] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temporary support structure for a precast exterior wall without floor, characterized by, It includes at least one set of diagonal bracing (1) and positioning components (2); Each set of diagonal braces (1) is provided with two, namely a first diagonal brace (101) and a second diagonal brace (102); the first diagonal brace (101) is used to connect with the support frame (5) to support the upper side of the prefabricated exterior wall (4); the second diagonal brace (102) is used to connect with the support frame (5) to support the lower side of the prefabricated exterior wall (4); The positioning component (2) includes a mounting base (21), a connecting base (22), a transmitter (23), and a receiver (24); Two mounting bases (21) are provided, namely a first mounting base (201) and a second mounting base (202); the first mounting base (201) is provided on the first diagonal brace (101), and the connecting base (22) is rotatably connected to the first mounting base (201); the transmitting element (23) is provided on the connecting base (22); the second mounting base (202) is provided on the second diagonal brace (102), and the receiving element (24) is provided on the second mounting base (202); the transmitting element (23) is used to emit laser light, and the receiving element (24) is used to receive laser light. The transmitter (23) is kept vertically downward by its own weight through the connector (22) so that the laser is emitted vertically downward.

2. A falsework structure for a precast external wall without floor slab according to claim 1, characterized in that, The first mounting base (201) is used to adjust the position of the transmitter (23) in the horizontal plane, and the second mounting base (202) is used to adjust the position of the receiver (24) in the horizontal plane.

3. A temporary support structure for a prefabricated exterior wall without floor slabs according to claim 2, characterized in that, The mounting base (21) includes a base (211), a first slider (212), a second slider (213), and a positioning locking element (214). The base (211) is connected to the diagonal brace (1); the first slider (212) is slidably connected to the base (211), and the second slider (213) is slidably connected to the first slider (212), with the sliding directions of the first slider (212) and the second slider (213) being perpendicular; the connecting seat (22) is disposed on the second slider (213) of the first mounting seat (201), and the receiving member (24) is disposed on the second slider (213) of the second mounting seat (202); The positioning locking component (214) is used to lock the positions of the first slider (212) and the second slider (213) respectively.

4. A temporary support structure for a prefabricated exterior wall without floor slabs according to claim 1, characterized in that, The connecting seat (22) includes a ball head (221) and a ball seat (222); the ball seat (222) is connected to the first mounting seat (201), the ball head (221) is rotatably connected to the ball seat (222), and the ball head (221) is connected to the launching element (23).

5. A temporary support structure for a prefabricated exterior wall without floor slabs according to claim 1, characterized in that, The diagonal brace (1) includes a support base (11), an adjusting rod (12), an adjusting cylinder (13), and an outer tube (14). The support base (11) is used to connect with the precast exterior wall (4), and the mounting base (21) is disposed on the support base (11); The adjusting rod (12) is rotatably connected to the support base (11), the adjusting cylinder (13) is threadedly connected to the adjusting rod (12), the adjusting cylinder (13) is rotatably arranged relative to the outer tube (14), and the outer tube (14) is used to connect to the support frame (5); When the support base (11) is connected to the precast outer wall (4) and the outer tube (14) is connected to the support frame (5), the adjusting cylinder (13) rotates, causing the adjusting rod (12) to move toward or away from the outer tube (14).

6. A temporary support structure for a prefabricated exterior wall without floor slabs according to claim 5, characterized in that, The diagonal brace (1) also includes an inner tube (15) and an adjusting locking element (16); One end of the inner tube (15) is rotatably connected to the adjusting cylinder (13), and the other end is sleeved inside the outer tube (14); the adjusting locking member (16) is used to lock the relative position of the inner tube (15) and the outer tube (14).

7. A temporary support structure for a prefabricated exterior wall without floor slabs according to claim 5, characterized in that, An operating handle (17) is provided on the adjusting cylinder (13), and the operating handle (17) is used to drive the adjusting cylinder (13) to rotate.

8. A temporary support structure for a prefabricated exterior wall without floor slabs according to claim 1, characterized in that, A counterweight (223) is provided on the connecting seat (22).

9. A construction method for a precast exterior wall without floor slabs, using the temporary support structure as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S1. Erect the support frame (5) and hoist the prefabricated exterior wall (4) to the installation position; S2. Connect the first diagonal brace (101) to the upper side of the precast exterior wall (4), connect the second diagonal brace (102) to the lower side of the precast exterior wall (4), and connect the first diagonal brace (101) and the second diagonal brace (102) to the support frame (5) respectively to temporarily support and fix the precast exterior wall (4); S3. Adjust the lengths of the first diagonal brace (101) and the second diagonal brace (102) respectively, so that the laser emitted by the transmitter (23) is aligned with the reference position of the receiver (24) to determine that the prefabricated exterior wall (4) is in a vertical state.

10. A construction method for a prefabricated exterior wall without floor slabs according to claim 9, characterized in that, In step S3, before adjusting the lengths of the first diagonal brace (101) and the second diagonal brace (102), the transmitter (23) and the receiver (24) are moved synchronously in the same direction by the corresponding first mounting base (201) and second mounting base (202) to avoid the support frame (5) from blocking the laser propagation path.

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