Prefabricated external wall panel and hanging assembly thereof

Abstract

The invention relates to a prefabricated external wall panel, and discloses a prefabricated external wall panel and a hanging assembly thereof. The hanging assembly comprises a hanging embedded part (1) and a first hanging part (201) arranged on a hanging frame (2), a hanging ring mounting groove (101) with an upward opening is formed in the hanging embedded part (1), and a hanging ring (102) and a limiting pin (103) used for limiting the hanging ring (102) in the hanging embedded part (1) are arranged in the hanging ring mounting groove (101). A second hanging piece (104) matched with the first hanging piece (201) is arranged on one side face of the hanging embedded part (1), and when the second hanging piece (104) is hung on the first hanging piece (201), limiting of the limiting pin (103) on the hanging ring (102) can be relieved. According to the hanging device, the hanging ring (102) can be removed after the external wall panel is hung in place on the hanging frame (2), the hanging position can be conveniently adjusted when the external wall panel is hung, and meanwhile potential safety hazards caused by unlocking of the hanging ring (102) due to the fact that hanging is not in place are avoided.

Description

Technical Field

[0001] The present invention relates to precast exterior wall panels, and particularly to a precast exterior wall panel and its hanging assembly. Background Art

[0002] The precast exterior wall panel component is to install a frame on the outer wall of the inner wall after the inner wall construction is completed, and then hang and fix the exterior wall panel on the frame. As a non-load-bearing component, the main functions of the exterior wall panel are heat preservation, rain prevention, decoration, etc.

[0003] When hanging the exterior wall panel, mating hanging parts are usually fixed on the inner surface of the exterior wall panel and the frame, and a lifting point for the lifting ring of the lifting equipment is set at the top of the exterior wall panel. Since the hanging parts are located inside the exterior wall panel, on the one hand, when the operator hoists and hangs the exterior wall panel through the lifting equipment, it is impossible to ensure that the exterior wall panel is accurately positioned in one hoisting, and on the other hand, it is difficult to observe whether the inner hanging is in place. If the lifting point is unlocked when the hoisting is not in place, it is not only difficult to further adjust the position of the exterior wall panel, but also has certain safety hazards. Summary of the Invention

[0004] The present invention aims at the problems existing in the hanging process of precast exterior wall panels in the prior art, and provides a precast exterior wall panel and its hanging assembly.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions: A hanging assembly includes a hanging embedded part and a first suspension member arranged on a hanging rack. The hanging embedded part is provided with a suspension ring installation groove with an upward opening. A suspension ring and a limit pin for limiting the suspension ring within the hanging embedded part are arranged in the suspension ring installation groove. A second suspension member cooperating with the first suspension member is arranged on one side surface of the hanging embedded part. When the second suspension member is hung on the first suspension member, the limit on the suspension ring by the limit pin can be released.

[0006] Preferably, the hanging embedded part is provided with a limit pin installation mechanism. The limit pin installation mechanism includes a limit pin installation hole horizontally arranged in the hanging embedded part and communicating with the suspension ring installation groove. A limit pin insertion hole is arranged on the side wall of the suspension ring installation groove opposite to the limit pin installation hole. A tension spring is installed in the limit pin installation hole and can pull the end of the limit pin inserted in the limit pin insertion hole to a position close to the limit pin installation hole. An unlocking limit hole longitudinally arranged and communicating with the limit pin installation hole is further arranged in the hanging embedded part. A pressing block capable of pressing against the end surface of the limit pin to insert the limit pin in the limit pin insertion hole is installed in the unlocking limit hole. The pressing block can move in the unlocking limit hole to a position longitudinally misaligned with the limit pin to release the pressing on the limit pin. The pressing block presses against the limit pin, so that the limit pin constitutes a limit on the suspension ring.

[0007] Preferably, a rotating rod is installed in the unlocking limiting hole. An internal hexagonal groove for driving the rotation of the rotating rod is provided at the top of the rotating rod. The bottom of the rotating rod is rotatably connected to the bottom surface of the unlocking limiting hole. The pressing block is threadedly connected to the rotating rod. The transverse cross-sections of the unlocking limiting hole and the pressing block are both square, and the pressing block can slide up and down along the inner wall of the unlocking limiting hole. The unlocking method of the pressing block only requires rotating the rotating rod, which is relatively convenient to operate.

[0008] Preferably, the opening end of the unlocking limiting hole extends to the upper end surface of the hanging embedded part, and the opening end forms an unlocking opening. A retaining cover capable of covering the unlocking opening is provided at the unlocking opening. The first suspension member and the second suspension member are L-shaped buckle plates that are mutually buckled. The second suspension member and the side surface of the hanging embedded part form a buckling groove with a downward opening. An unlocking block for the retaining cover is provided in the hanging embedded part, which can extend into the buckling groove and is used to drive the retaining cover to open the unlocking opening when the first suspension member and the second suspension member are buckled. The setting of the unlocking block for the retaining cover realizes the unlocking of the retaining cover based on the buckling state of the first suspension member and the second suspension member.

[0009] Preferably, a horizontally arranged unlocking groove for the retaining cover and a retaining cover storage groove communicating with the unlocking groove for the retaining cover are provided in the hanging embedded part. An unlocking block spring is provided in the unlocking groove for the retaining cover. One end of the unlocking block for the retaining cover is arranged in the unlocking groove for the retaining cover and is connected to the unlocking block spring. The other end extends into the buckling groove under the action of the unlocking block spring. The upper end surface of the end of the unlocking block for the retaining cover extending into the buckling groove fits on the horizontal plane of the buckling groove, and the lower end surface is constructed as an inclined surface that cooperates with the first suspension member. When the first suspension member is buckled in the buckling groove, it can squeeze the inclined surface to retract the unlocking block for the retaining cover into the unlocking groove for the retaining cover. When the unlocking block for the retaining cover retracts into the unlocking groove for the retaining cover, it can pull the retaining cover back into the retaining cover storage groove. The setting of the retaining cover enables the operator to release the limit on the limit pin only after the exterior wall panel is hung in place, playing a certain protective role.

[0010] Preferably, a pull rope is connected between the retracted unlocking block for the retaining cover and the retaining cover. A first indicator plate is further provided on the upper end surface of the retaining cover in the retaining cover storage groove and at the end far from the retaining cover storage groove. A second indicator plate is provided at the side wall of the unlocking opening. When the unlocking block for the retaining cover is completely retracted into the unlocking groove for the retaining cover, the first indicator plate fits on the second indicator plate. The setting positions and indication forms of the two indicator plates enable the operator to very intuitively and conveniently observe whether the exterior wall panel is hung in place.

[0011] Preferably, a hanging guiding mechanism is further provided on the hanging embedded part. The hanging guiding mechanism includes two guiding plates detachably arranged on both sides of the hanging embedded part. A guiding groove is formed between the two guiding plates, and the upper end of the guiding groove extends to the opening end of the buckling groove. The guiding groove can enable the first suspension member to enter the buckling groove more accurately and quickly, ensuring the accuracy and efficiency during the hanging process of the exterior wall panel.

[0012] Preferably, the guiding plate includes a connecting portion and a guiding portion. The connecting portion is inserted into the side surface of the hanging embedded part, and a fastening bolt for fixing the connecting portion to the side surface of the hanging embedded part is further provided on the connecting portion; the guiding portion is formed with a guiding groove having an L-shaped cross section, and the guiding grooves on the two guiding portions together constitute a guiding groove, and the width of the guiding groove gradually decreases from the end surface of the guiding portion away from the connecting portion to the fastening groove. The arrangement of the guiding plate can make the hanging position of the exterior wall panel more accurate.

[0013] Preferably, a blocking plate capable of blocking above the fastening bolt is further provided on the connecting portion. One end of the blocking plate constitutes a blocking portion, and the other end is rotatably connected to the connecting portion. An anti-falling plate capable of horizontally extending towards the hanging bracket is further provided on the side surface of the blocking plate. The arrangements of the blocking plate and the anti-falling plate can effectively avoid the risk that the guiding plate falls into the gap between the exterior wall panel and the hanging bracket when the guiding plate is disassembled.

[0014] A precast exterior wall panel includes a hanging assembly.

[0015] Due to the adoption of the above technical solutions, the present invention has remarkable technical effects: The present invention can release the lifting ring after the exterior wall panel is hung in place on the hanging bracket, can conveniently adjust the hanging position during the hoisting of the exterior wall panel, and at the same time avoid the safety hazards caused by unlocking the lifting ring when the hanging is not in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of Embodiment 1 of the present invention.

[0017] Figure 2 is an installation schematic view of the hanging assembly of the present invention on the exterior wall panel.

[0018] Figure 3 is a schematic structural view of the hanging assembly of the present invention.

[0019] Figure 4 is Figure 3 the top view of

[0020] Figure 5 is Figure 4 the sectional view taken along the line A-A in

[0021] Figure 6 is Figure 4 the sectional view taken along the line B-B in

[0022] Figure 7 is a schematic structural view of the guiding plate of the present invention.

[0023] Figure 8 is a schematic structural view of the first hanging member of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1 In this embodiment, a precast exterior wall panel is provided, as Figures 1-8 shown, which includes an exterior wall panel body and a hanging assembly embedded in the upper end of the exterior wall panel body.

[0026] Among them, the hanging assembly in this embodiment is a steel piece, which includes a hanging embedded part 1 and a first suspension member 201 arranged on a hanging bracket 2. The hanging embedded part 1 includes a base with a square outer contour. The base is provided with a sling mounting groove 101 with an upward opening. A sling 102 and a limit pin 103 for limiting the sling 102 within the hanging embedded part 1 are arranged in the sling mounting groove 101. On one side surface of the hanging embedded part 1, there is a second suspension member 104 cooperating with the first suspension member 201. The first suspension member 201 and the second suspension member 104 are L-shaped buckle plates that are mutually buckled. The upper end of the second suspension member 104 is embedded and covers the upper end surface of the base, and the upper end surface of the second suspension member 104 is flush with the upper end surface of the base. The lower end extends downward to form a buckling groove 114 with the side surface of the base. The second suspension member 104 is welded and fixed to the base, so that the entire hanging embedded part 1 forms an integral member that can be preferably precast in the exterior wall panel 3.

[0027] In this embodiment, when the second suspension member 104 is hung on the first suspension member 201, the limit of the limit pin 103 to the sling 102 can be released. Specifically, the hanging embedded part 1 is provided with a limit pin installation mechanism. The limit pin installation mechanism includes a limit pin installation hole 105 that is horizontally arranged in the hanging embedded part 1 and communicates with the sling installation groove 101. On the side wall of the sling installation groove 101 opposite to the limit pin installation hole 105, there is a limit pin insertion hole 106. A tension spring 107 is installed in the limit pin installation hole 105, which can pull the end of the limit pin 103 inserted in the limit pin insertion hole 106 to a position close to the limit pin installation hole 105. A longitudinal unlocking limit hole 108 that communicates with the limit pin installation hole 105 is also arranged in the hanging embedded part 1. An abutting block 109 that can abut against the end surface of the limit pin 103 to insert the limit pin 103 in the limit pin insertion hole 106 is installed in the unlocking limit hole 108.

[0028] When the sling 102 is in a limited state, the abutting block 109 abuts against the limit pin 103. At this time, one end of the limit pin 103 is inserted into the limit pin insertion hole 106, and the other end is located in the limit pin installation hole 105. At this time, the hook of the lifting equipment can hoist the exterior wall panel 3 based on the sling 102.

[0029] The abutting block 109 can move in the unlocking limit hole 108 to a position longitudinally misaligned with the limit pin 103 to release the abutting against the limit pin 103. The specific unlocking method is as follows: A rotating rod 110 is installed in the unlocking limit hole 108. The top of the rotating rod 110 is provided with a hexagonal groove 111 for driving the rotating rod 110 to rotate. The bottom of the rotating rod 110 is rotatably connected to the bottom surface of the unlocking limit hole 108. The tightening block 109 is threadedly connected to the rotating rod 110. The transverse cross-sections of the unlocking limit hole 108 and the tightening block 109 are both square and the tightening block 109 can slide up and down along the inner wall of the unlocking limit hole 108.

[0030] When unlocking, the rotating rod 110 can be rotated, and a hexagonal wrench can be used to extend into the unlocking limit hole 108 to rotate the rotating rod 110. The tightening block 109 will move up and down in the inner wall of the unlocking limit hole 108 under the action of the threaded cooperation, and then when it moves to below the height of the limit pin 103, it can no longer tighten the limit pin 103. At this time, the end of the limit pin 103 inserted in the limit pin plug-in hole 106 can be pulled out of the limit pin plug-in hole 106 under the action of the tension spring 107, and move to a position close to the limit pin mounting hole 105. At this time, the limit on the lifting ring 102 can be released, and the lifting ring 102 can be detached from the lifting ring mounting groove 101, thereby realizing the separation between the exterior wall panel 3 and the lifting equipment sling.

[0031] In order to facilitate the operator to determine the accurate unlocking time and prevent the inability to adjust the position of the exterior wall panel 3 and safety issues caused by unlocking the lifting ring 102 when the exterior wall panel 3 is not fully hung in place, this embodiment also provides a method that allows the operator to intuitively observe whether the exterior wall panel 3 is hung in place, and the operator can unlock the lifting ring 102 only when the exterior wall panel 3 is hung in place. The specific structure is as follows: The open end of the unlocking limit hole 108 extends to the upper end surface of the hanging embedded part 1 and the open end constitutes an unlocking port 112, and a blocking cover 113 that can cover the unlocking port 112 is provided at the unlocking port 112. The first hanging part 201 and the second hanging part 104 are L-shaped buckle plates that are interlocked with each other. The first hanging part 201 is welded to the external wall bracket 2, and the external wall bracket 2 is provided with a bracket 2 crossbeam for installing the first hanging part 201; the second hanging part 104 and the side of the hanging embedded part 1 form a downwardly opening locking groove 114, and the hanging embedded part 1 is provided with a blocking cover unlocking block 115 that can extend into the locking groove 114 and is used to drive the blocking cover 113 to open the unlocking port 112 when the first hanging part 201 and the second hanging part 104 are engaged.

[0032] The hanging embedded part 1 is provided with a horizontally arranged cover unlocking groove 116 and a cover receiving groove 117 communicating with the cover unlocking groove 116. An unlocking block spring 118 is arranged in the cover unlocking groove 116. One end of the cover unlocking block 115 is arranged in the cover unlocking groove 116 and connected to the unlocking block spring 118, and the other end extends into the fastening groove 114 under the action of the unlocking block spring 118. The upper end surface of the end of the cover unlocking block 115 extending into the fastening groove 114 fits on the horizontal plane of the fastening groove 114, and the lower end surface is constructed as an inclined surface matching with the first suspension member 201. When the first suspension member 201 is fastened in the fastening groove 114, it can squeeze the inclined surface to retract the cover unlocking block 115 into the cover unlocking groove 116. When the cover unlocking block 115 retracts into the cover unlocking groove 116, it can pull the cover 113 back into the cover receiving groove 117.

[0033] A pull rope 119 is connected between the cover unlocking block 115 and the cover 113. A first indicator plate 120 is also arranged on the upper end surface of the cover 113 in the cover receiving groove 117 and at the end far from the cover receiving groove 117. A second indicator plate 121 is arranged at the side wall of the unlocking opening 112. When the cover unlocking block 115 completely retracts into the cover unlocking groove 116, the first indicator plate 120 fits on the second indicator plate 121.

[0034] In this embodiment, hanging assemblies are arranged at both ends of the upper end surface of the exterior wall panel 3. The cover unlocking block 115 is eccentrically arranged towards the end position of the exterior wall panel 3 relative to the central position of the second suspension member 104. The hanging assemblies at both ends of the exterior wall panel 3 cooperate with each other. When it is suspended, only when the first suspension members 201 at both ends respectively press the cover unlocking blocks 115 at both ends into the cover unlocking grooves 116, that is, when the operator observes that the first indicator plates 120 on the hanging assemblies at both ends of the exterior wall panel 3 both fit on the second indicator plates 121, can it be judged that the exterior wall panel 3 is suspended in place. If only the first indicator plate 120 on one of the hanging assemblies fits on the second indicator plate 121, it means that the exterior wall panel 3 may have an inaccurate hanging position or other situations where it is not fully suspended in place. At this time, the cover 113 will also block the unlocking opening 112, and the operator cannot rotate the rotating rod 110 to unlock the pressing block 109.

[0035] After the operator judges that the exterior wall panel 3 is suspended in place, the cover 113 automatically retracts into the cover receiving groove 117 under the action of the pull rope 119. At this time, the operator can rotate the rotating rod 110 with a hexagonal wrench to unlock the pressing of the pressing block 109 on the limit pin 103, and the limit pin 103 releases the limit on the suspension ring 102.

[0036] In this embodiment, in order to enable the exterior wall panel 3 to be hung on the first hanging component 201 more accurately and conveniently, a hanging guide mechanism is also provided on the hanging embedded component 1. The hanging guide mechanism includes two detachable guide plates 122 arranged on both sides of the hanging embedded component 1, and a guide groove 123 is formed between the two guide plates 122. The upper end of the guide groove 123 extends to the open end of the snap-fit ​​groove 114.

[0037] The suspension guide mechanism is detachably installed on the hoisting embedded parts. During the hanging process, it is installed before the hanging and removed after the hanging is completed so that it can be reused.

[0038] The guide plate 122 includes a connecting portion 124 and a guiding portion 125. The connecting portion 124 is plugged into the side of the hanging embedded component 1. The side of the hanging embedded component 1 is provided with an insert port 131 and a threaded hole 133. The side of the connecting portion 124 is provided with an insert plate 132 inserted into the insert port 131. The connecting portion 124 is also provided with a fastening bolt 126 for fixing the connecting portion 124 to the threaded hole 133 on the side of the hanging embedded component 1; the guiding portion 125 is formed with a guide groove 130 with an L-shaped cross-section, and the guide grooves 130 on the two guiding portions 125 together constitute the guide groove 123. The width of the guide groove 123 gradually decreases from the end face of the guiding portion 125 away from the connecting portion 124 to the buckling groove 114, and the width of the end opposite to the buckling groove 114 is close to the width of the buckling groove 114, and is slightly larger than the width of the buckling groove 114.

[0039] During the hanging process, the first hanging member 201 can relatively move to the second hanging member 104 relatively conveniently under the action of the guide groove 123, and accurately lock with the locking groove 114 of the first hanging member 201, basically realizing the hanging action in one step.

[0040] Since the guide plate 122 needs to be removed after the exterior wall panel 3 is hung in place, and it may fall into the gap between the exterior wall panel 3 and the hanging bracket 2 during the removal process, the guide plate 122 is also provided with a falling prevention structure. That is, a blocking plate 127 capable of blocking above the fastening bolt 126 is also provided on the connecting portion 124. One end of the blocking plate 127 constitutes a blocking portion 128, and the other end is rotatably connected to the connecting portion 124. A rubber ring is provided at the rotating position to increase the rotational resistance and ensure that the blocking plate 127 can block above the fastening bolt 126. At this time, the operator cannot screw the fastening bolt 126. A falling prevention plate 129 capable of horizontally extending toward the hanging bracket 2 is also provided on the side surface of the blocking plate 127. After the exterior wall panel 3 is hung in place, when the operator needs to remove the guide plate 122, only need to rotate the blocking plate 127 toward the hanging bracket 2 side, and the blocking of the fastening bolt 126 by the blocking plate 127 can be released. At this time, the operator can screw the fastening bolt 126 to remove the guide plate 122; at the same time, the falling prevention plate 129 on the side surface of the blocking plate 127 will rotate above the crossbar of the hanging bracket 2, which can prevent the guide plate 122 from falling off during the removal process of the guide plate 122.

[0041] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application based on one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0042] In summary, the above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A hanging assembly, comprising a hanging embedded part (1) and a first hanging part (201) arranged on a hanging bracket (2), characterized in that: A lifting ring installation groove (101) with an opening arranged upward is provided on the hanging embedded part (1), a lifting ring (102) and a limit pin (103) for limiting the lifting ring (102) in the hanging embedded part (1) are provided in the lifting ring installation groove (101), and a second hanging part (104) cooperating with the first hanging part (201) is provided on one side surface of the hanging embedded part (1), and when the second hanging part (104) is hung on the first hanging part (201), the limit of the lifting ring (102) by the limit pin (103) can be released.

2. A hanging assembly according to claim 1, characterized in that: A limit pin installation mechanism is provided on the hanging embedded component (1), the limit pin installation mechanism comprising a limit pin installation hole (105) which is transversely arranged in the hanging embedded component (1) and communicated with the lifting ring installation groove (101), a limit pin plugging hole (106) is provided on the side wall of the lifting ring installation groove (101) opposite to the limit pin installation hole (105), and a stopper (103) which is plugged into the limit pin plugging hole (106) is installed in the limit pin installation hole (105) and is capable of pulling the end of the limit pin (103) plugged into the limit pin plugging hole (106) to a position close to the limit pin installation hole (105). A tension spring (107) is disposed at a position where the locking member (1) is located. The hanging embedded part (1) is also provided with an unlocking limit hole (108) which is longitudinally arranged and communicated with the limit pin installation hole (105). A pressing block (109) which can press against the end surface of the limit pin (103) and insert the limit pin (103) into the limit pin insertion hole (106) is installed in the unlocking limit hole (108). The pressing block (109) can move in the unlocking limit hole (108) to a position longitudinally misaligned with the limit pin (103) to release the pressing against the limit pin (103).

3. A hanging assembly according to claim 2, characterized in that: A rotating rod (110) is installed in the unlocking limit hole (108); a hexagonal groove (111) is provided at the top of the rotating rod (110) for driving the rotating rod (110) to rotate; the bottom of the rotating rod (110) is rotatably connected to the bottom surface of the unlocking limit hole (108); a tightening block (109) is threadedly connected to the rotating rod (110); the transverse cross-sections of the unlocking limit hole (108) and the tightening block (109) are both square, and the tightening block (109) can slide up and down along the inner wall of the unlocking limit hole (108).

4. A hanging assembly according to claim 2, characterized in that: The open end of the unlocking limit hole (108) extends to the upper end surface of the hanging embedded component (1) and the open end forms an unlocking opening (112); a blocking cover (113) capable of covering the unlocking opening (112) is provided at the unlocking opening (112); the first hanging component (201) and the second hanging component (104) are L-shaped buckle plates that are buckled with each other; the second hanging component (104) and the side surface of the hanging embedded component (1) form a buckling groove (114) that opens downward; and a blocking cover unlocking block (115) is provided in the hanging embedded component (1) and is capable of extending into the buckling groove (114) and is used to drive the blocking cover (113) to open the unlocking opening (112) when the first hanging component (201) and the second hanging component (104) are buckled.

5. A hanging assembly according to claim 4, characterized in that: A cover unlocking groove (116) disposed transversely and a cover receiving groove (117) connected to the cover unlocking groove (116) are provided in the hanging embedded part (1); an unlocking block spring (118) is provided in the cover unlocking groove (116); one end of the cover unlocking block (115) is disposed in the cover unlocking groove (116) and connected to the unlocking block spring (118); the other end of the cover unlocking block (115) is extended into the buckling groove (114) under the action of the unlocking block spring (118); and the extension of the cover unlocking block (115) is The upper end surface of the end portion inserted into the snap-fit ​​groove (114) is affixed to the horizontal plane of the snap-fit ​​groove (114), and the lower end surface is structured as an inclined surface that cooperates with the first hanging member (201). When the first hanging member (201) is snap-fitted into the snap-fit ​​groove (114), it can press the inclined surface to retract the blocking cover unlocking block (115) into the blocking cover unlocking groove (116). When the blocking cover unlocking block (115) is retracted into the blocking cover unlocking groove (116), it can pull the blocking cover (113) to retract into the blocking cover storage groove (117).

6. A hanging assembly according to claim 5, characterized in that: A pull rope (119) is connected between the barrier unlocking block (115) and the barrier (113); a first indicator plate (120) is provided on the upper end surface of the barrier (113) and at an end away from the barrier receiving groove (117) in the barrier receiving groove (117); a second indicator plate (121) is provided on the side wall of the unlocking opening (112); and when the barrier unlocking block (115) is fully retracted into the barrier unlocking groove (116), the first indicator plate (120) is attached to the second indicator plate (121).

7. A hanging assembly according to claim 4, characterized in that: The hanging embedded component (1) is also provided with a hanging guide mechanism, which comprises two detachable guide plates (122) arranged on both sides of the hanging embedded component (1), a guide groove (123) is formed between the two guide plates (122), and the upper end of the guide groove (123) extends to the open end of the buckling groove (114).

8. A hanging assembly according to claim 4, characterized in that: The guide plate (122) comprises a connecting portion (124) and a guiding portion (125); the connecting portion (124) is plugged into a side surface of the hanging embedded component (1); the connecting portion (124) is also provided with a fastening bolt (126) for fixing the connecting portion (124) to the side surface of the hanging embedded component (1); the guiding portion (125) is formed with a guide groove (130) having an L-shaped cross section; the guide grooves (130) on the two guiding portions (125) together constitute a guide groove (123); the width of the guide groove (123) gradually decreases from the end surface of the guiding portion (125) away from the connecting portion (124) to the buckling groove (114).

9. A hanging assembly according to claim 4, characterized in that: The connection portion (124) is also provided with a blocking plate (127) capable of blocking above the fastening bolt (126); one end of the blocking plate (127) forms a blocking portion (128), and the other end is rotatably connected to the connection portion (124); and a fall prevention plate (129) capable of extending horizontally toward the hanger (2) is also provided on the side of the blocking plate (127).

10. A prefabricated exterior wall panel, characterized in that: It comprises a hanging assembly as described in any one of claims 1-9.

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