A venue sound-absorbing body connection structure and construction method thereof

Abstract

The present application discloses a venue sound-absorbing body connection structure and a construction method thereof, which includes a keel hanger, a suspension device for connecting the sound-absorbing body and the keel hanger, and a lifting device; the keel hanger includes two main beams for connecting with the truss and a crossbeam fixed between the two main beams; the suspension device includes two first angle steels, the sound-absorbing body is installed between the two first angle steels, both ends of the first angle steels are fixedly connected with a connecting strip, and the connecting strip is provided with a locking mechanism for connecting with the main beam; the lifting device includes a winch, and the free end of the pull rope of the winch is connected with four cables. The present application uses the hoisting method to install the sound-absorbing body, which significantly improves the installation efficiency of the sound-absorbing body, and is not affected by the truss structure, so that the sound-absorbing body can cover the top of the venue, effectively improving the sound absorption effect.

Description

Technical Field

[0001] The present application relates to the technical field of sound absorbing panel installation, and in particular to a venue sound absorbing body connection structure and a construction method thereof. Background Art

[0002] When the venue is in use, the various machines and equipment and people's voices in the relatively closed space will cause serious noise pollution. If no sound absorption and noise reduction measures are taken, it will affect the normal operation of various parts of the venue.

[0003] At present, indoor noise reduction generally adopts the method of installing sound-absorbing panels. However, large venues such as gymnasiums and performance venues often adopt truss roof structure design. If the sound-absorbing panels are installed by conventional paving methods, the structural influence of the truss is greatly limited, which makes the installation of the sound-absorbing panels difficult, and even the situation that the sound-absorbing panels cannot cover the entire roof. Therefore, improvements are needed. Summary of the invention

[0004] In order to install sound-absorbing panels in a venue with a truss roof structure design, the present application provides a venue sound-absorbing body connection structure and a construction method thereof.

[0005] The present application provides a venue sound absorbing body connection structure and a construction method thereof using the following technical solutions:

[0006] A venue sound-absorbing body connection structure, comprising a keel hanger, a suspension device for connecting the sound-absorbing body and the keel hanger, and a lifting device; the keel hanger comprises two main beams for connecting to a truss and a crossbeam fixed between the two main beams; the suspension device comprises two first angle steels, the sound-absorbing body is installed between the two first angle steels, both ends of the first angle steels are fixedly connected with connecting strips, and the connecting strips are provided with a locking mechanism for connecting to the main beams; the lifting device comprises a winch, and the free end of the pull rope of the winch is connected to four cables.

[0007] By adopting the above technical solution, before the sound-absorbing body is hoisted, the sound-absorbing body is first installed on the first angle steel on the ground, and then the keel hanger is spliced. The presence of the crossbeam makes it convenient to use the winch to hoist the keel hanger and the sound-absorbing body. When hoisting the keel hanger, the winch is arranged on the ground, the pull rope of the winch is passed around the truss and connected to the crossbeam, and then the keel hanger is hoisted. When the keel hanger is moved to the height of the truss, the main beam and the truss are locked to complete the hoisting of the keel hanger. Then the pull rope is untied from the crossbeam and lowered to the ground, and the four cables are connected to the pull rope and then connected to the corresponding connecting strips. After that, the sound-absorbing body is hoisted by the winch, and the connecting strip and the main beam are fixed together by the locking mechanism to complete the hoisting of the sound-absorbing body. The entire operation process is simple and efficient, which significantly improves the installation efficiency of the sound-absorbing body. The sound-absorbing body is installed by hoisting, which is not affected by the truss, so that the sound-absorbing body can cover the top of the venue to improve the sound absorption effect.

[0008] Preferably, the locking mechanism includes a channel steel fixed to an end of the connecting strip away from the first angle steel, the channel steel is clipped into cooperation with the main beam, an outer wall of the wing plate of the channel steel is fixedly connected with a fixing box, the fixing box is closed at one end away from the channel steel, a wedge block is slidably inserted in the fixing box, the inclined surface of the wedge block is arranged away from the bottom of the fixing box, the inclined surface of the wedge block is arranged away from the web of the channel steel, the wedge block penetrates the wing plate of the channel steel, a through hole is opened on the side wall of the main beam for the wedge block to pass through, and a first elastic member is arranged between the wedge block and the bottom of the fixing box; a locking component for locking the wedge block is arranged on the channel steel, and an unlocking component for unlocking the locking component is arranged on the connecting strip.

[0009] By adopting the above technical solution, in the process of using a winch to lift the sound-absorbing body, after the channel steel is clamped with the main beam, the main beam will abut against the inclined surface of the wedge block and squeeze the wedge block into the fixing box. When the web of the channel steel abuts against the main beam, the through hole is opposite to the wedge block, and the wedge block is inserted into the through hole under the push of the first elastic member, thereby realizing the pre-fixation of the channel steel and the main beam, so as to facilitate the subsequent use of the locking assembly to lock the wedge block, so that the channel steel and the main beam are firmly connected.

[0010] Preferably, the locking assembly includes a accommodating box fixed on the lower surface of the fixed box, the accommodating box and the fixed box are connected, an insert block is slidably inserted in the accommodating box, a second elastic member is provided between one end of the insert block inserted into the accommodating box and the bottom of the accommodating box, and a socket for inserting the insert block is opened on the wedge block.

[0011] By adopting the above technical solution, during the process of lifting the sound absorbing body, the unlocking assembly unlocks the locking assembly, that is, the plug block exits the insertion hole during this process, so that the wedge block can move smoothly. After the wedge block is inserted into the through hole on the main beam, the plug block is inserted into the insertion hole, thereby locking the wedge block, so that the channel steel is firmly connected to the main beam.

[0012] Preferably, the unlocking assembly includes, from top to bottom, a limit ring which is sleeved and fixed on the connecting strip, a sliding sleeve which is slidably sleeved on the connecting strip, and a reversing wheel installed on the connecting strip, a rope is provided on the sliding sleeve, the end of the rope away from the sliding sleeve passes around from under the reversing wheel and penetrates into the accommodating box from the bottom of the accommodating box and is fixedly connected to the plug block; a hook is provided on the end of the cable away from the winch pull rope, a hanging ring is provided on the sliding sleeve, and the hook is hung on the hanging ring.

[0013] By adopting the above technical solution, when lifting the sound absorbing body, the hook is connected to the corresponding hanging ring, the winch is operated to reel in the draw rope, the sliding sleeve moves up and pulls the rope, and the plug block is pulled out of the socket under the pull of the rope, so that the wedge block can move normally. When the sliding sleeve moves up to abut against the limit block, the suspension device and the sound absorbing body move up synchronously until the wedge block is inserted into the through hole. After that, the winch is reversed to loosen the draw rope, the hook is automatically separated from the hook under the action of gravity, and the second elastic member rebounds to push the plug block into the socket, thereby automatically locking the wedge block. The operation is simple and efficient, and the hoisting efficiency of the sound absorbing body is effectively improved.

[0014] Preferably, two second angle steels are provided on each of the main beams, one end of the second angle steel is vertically fixedly connected to the main beam, and the projection of the second angle steel on the ground is pressed against the corner point of the end of the first angle steel.

[0015] By adopting the above technical solution, the second angle steel plays a limiting role on the first angle steel. When the first angle steel moves up to a height close to the lower end of the second angle steel, the position of the first angle steel is fine-tuned so that the first angle steel is inserted between the two opposite second angle steels, so that the subsequent first angle steel remains stable during the upward movement, thereby ensuring that the channel steel can be connected with the main beam, thereby realizing self-locking of the channel steel and the main beam.

[0016] Preferably, it also includes a series assembly, which includes a steel cable and a connecting ring, the connecting ring is installed on the side wall of the sound absorbing body, the steel cable passes through the connecting rings located on multiple sound absorbing bodies in sequence, and both ends of the steel cable are bent and locked by a wire rope clamp.

[0017] By adopting the above technical solution, multiple connecting rings are connected in series by using steel cables and connecting rings, which is helpful to reduce the shaking of the sound absorbing body, so that the sound absorbing body can be stably hoisted on the truss.

[0018] Preferably, a sling is further provided on the steel cable, and one end of the sling away from the steel cable is used for connecting with the truss.

[0019] By adopting the above technical solution, after the sound absorbing body is stably hoisted on the truss, the end of the sling away from the steel cable is connected to the truss, which plays a role of secondary protection for the sound absorbing body and further reduces the possibility of the sound absorbing body falling.

[0020] A construction method for a venue sound-absorbing body connection structure comprises the following steps:

[0021] S1. Install the sound absorber: install the sound absorber on the first angle steel on the ground, connect multiple sound absorbers in series using a series assembly, and then connect one end of the sling to the steel cable;

[0022] S2. Assemble keel hangers: Assemble the main beam, cross beam and second angle steel on the ground;

[0023] S3. Arrange the lifting device: arrange the winch on the ground, install the winch on the ground below the keel hanger, and the construction personnel take the ladder with the winch rope to the height of the truss, then pass the rope around the truss and let the free end of the rope hang down to the ground;

[0024] S4. Hoisting keel hangers: tie the pull rope of the winch to the beam, then use the winch to hoist the keel hangers, and then fix the main beam and truss;

[0025] S5. Hoisting the sound-absorbing body: After the keel hanger is installed, untie the pull rope from the keel hanger, then pass the pull rope around the beam and lower it, and the construction workers on the ground connect the hook with the corresponding hanging ring, and use the winch to hoist the sound-absorbing body; when the first angle steel moves to a height close to the second angle steel, the construction workers adjust the position of the first angle steel so that the first angle steel can be smoothly inserted between the two opposite second angle steels, and continue to pull the sound-absorbing body until the web of the channel steel abuts against the main beam, and then use the sling to connect the steel cable to the truss; the winch is reversed to loosen the pull rope, so that the hook is separated from the hanging ring, and the hoisting of the sound-absorbing body is completed;

[0026] S6. Repeat S1-S5 until all sound-absorbing bodies are hoisted. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the sound absorbing body hoisted on the truss in this application;

[0028] Figure 2 It is a schematic diagram of the structure in which the keel hanger is installed on the truss in this application;

[0029] Figure 3 It is a schematic diagram of the structure of the sound absorbing body in the hoisting process in this application;

[0030] Figure 4 This application Figure 3 A is an enlarged schematic diagram.

[0031] Description of reference numerals:

[0032] 1. Truss; 2. Keel hanger; 21. Main beam; 22. Crossbeam; 23. Second angle steel; 24. Groove; 3. Sound absorber; 4. Series assembly; 41. Steel cable; 42. Connecting ring; 43. Sling; 5. Winch; 51. Pull rope; 6. Pull rope; 7. Hook; 8. First angle steel; 9. Carabiner; 10. Lifting ring; 11. Connecting strip; 12. Channel steel; 13. Fixing box; 14. Wedge block; 15. First spring; 16. Locking assembly; 161. Accommodating box; 162. Insert block; 163. Second spring; 17. Unlocking assembly; 171. Limiting ring; 172. Sliding sleeve; 173. Reversing wheel; 174. Hanging ring; 175. Rope; 18. Socket. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The present application embodiment discloses a venue sound absorbing body connection structure. Figure 1 , including a keel hanger 2, a suspension device for connecting a sound absorbing body 3 and the keel hanger 2, a series connection component 4 for connecting the sound absorbing body 3 in series, and a lifting device.

[0035] Reference Figure 1 and Figure 2 The keel hanger 2 includes a main beam 21 for connecting with the truss 1. Two main beams 21 are provided. The main beams 21 are fixed on the main beams 21 by U-shaped bolts and nuts. A cross beam 22 is overlapped and fixed between the middle parts of the two main beams 21. The cross beam 22 is vertically arranged with the main beam 21. A groove 24 is recessed in the middle part of the cross beam 22 to facilitate the subsequent hoisting of the sound absorbing body 3.

[0036] Reference Figure 1 The lifting device includes a winch 5 arranged on the ground, and the slot width of the groove 24 matches the diameter of the pull rope 51 of the winch 5. The free end of the pull rope 51 of the winch 5 is fixedly connected with four pull ropes 6, and the end of the pull rope 6 away from the pull rope 51 is fixedly connected with a hook 7.

[0037] Reference Figure 1 The series assembly 4 includes a steel cable 41 and a connecting ring 42. The connecting ring 42 is installed on one side of the sound absorbing body 3. The steel cable 41 passes through the connecting rings 42 located on multiple sound absorbing bodies 3 in sequence. Both ends of the steel cable 41 are bent and locked by a wire rope clamp. A sling 43 is fixedly connected to the steel cable 41. The end of the sling 43 away from the steel cable 41 is used to connect with the truss 1.

[0038] Reference Figure 1 and Figure 3The suspension device includes two first angle steels 8 arranged parallel to each other, and a plurality of carabiners 9 are buckled on one side of the first angle steel 8, and the plurality of carabiners 9 are distributed at intervals along the length direction of the first angle steel 8. Both ends of one side of the sound absorbing body 3 are installed with hanging rings 10, and the carabiners 9 are buckled with the hanging rings 10.

[0039] After multiple sound absorbers 3 are installed side by side between two first angle steels 8, the steel cables 41 are passed through the connecting rings 42 on the multiple sound absorbers 3 in sequence, and then the two ends of the steel cables 41 are bent and locked with a wire rope clamp. The steel cables 41 are used in conjunction with the connecting rings 42 to connect the multiple sound absorbers 3 in series, so as to reduce the shaking of the subsequent sound absorbers 3 during the hoisting process. At the same time, after the sound absorbers 3 are hoisted on the truss 1, the steel cables 41 are connected to the truss 1 with the slings 43 to reduce the possibility of the sound absorbers 3 falling.

[0040] Reference Figure 3 Two connecting strips 11 are fixedly connected to one side of the first angle steel 8 adjacent to the carabiner 9. The two connecting strips 11 are symmetrically distributed at both ends of the length direction of the first angle steel 8. The connecting strips 11 are arranged perpendicular to the first angle steel 8. A locking mechanism for connecting with the main beam 21 is arranged on the connecting strip 11.

[0041] Reference Figure 3 and Figure 4 The locking mechanism includes a channel steel 12 welded and fixed to the end of the connecting strip 11 away from the first angle steel 8. The outer walls of the two wing plates of the channel steel 12 are fixedly connected with a fixing box 13, the axis of the fixing box 13 is perpendicular to the wing plate of the channel steel 12, and the end of the fixing box 13 away from the channel steel 12 is closed. A wedge block 14 is slidably inserted in the fixing box 13, the inclined surface of the wedge block 14 is located at the end of the wedge block 14 away from the bottom of the fixing box 13, the inclined surface of the wedge block 14 is away from the web of the channel steel 12, the wedge block 14 penetrates the wing plate of the channel steel 12 and is slidably connected to the wing plate, and a through hole for the wedge block 14 to be inserted is opened on the side wall of the main beam 21. A first elastic member is fixedly connected between the end of the wedge block 14 inserted into the fixing box 13 and the bottom of the fixing box 13, and the first elastic member is a first spring 15. When the first spring 15 is in a natural state, the part of the wedge block 14 with the inclined surface passes through the wing plate of the channel steel 12.

[0042] Reference Figure 1 and Figure 2, two second angle steels 23 arranged in parallel with each other are fixedly connected to each main beam 21, and the second angle steels 23 are arranged vertically with the main beam 21 and suspended below the main beam 21. The two second angle steels 23 on the same main beam 21 are arranged opposite to each other, and the projection of the second angle steel 23 on the ground is pressed against the corner point of the end of the first angle steel 8. By setting the second angle steel 23, when the first angle steel 8 moves to the height close to the lower end of the second angle steel 23 during the process of hoisting the sound absorbing body 3 by the winch 5, the construction personnel can adjust the position of the first angle steel 8 so that the first angle steel 8 can be smoothly inserted between the two opposite second angle steels 23, and the second angle steel 23 guides the first angle steel 8 to ensure that the channel steel 12 can be smoothly connected with the main beam 21.

[0043] After the channel steel 12 is clamped on the outer periphery of the main beam 21, the channel steel 12 continues to move upward, during which the main beam 21 abuts against the inclined surface of the wedge block 14, thereby pushing the wedge block 14 to move toward the bottom of the fixing box 13, and the first spring 15 is compressed. When the web of the channel steel 12 moves to abut against the main beam 21, the through hole faces the wedge block 14, and the first spring 15 rebounds to push the wedge block 14 into the through hole, and the channel steel 12 and the main beam 21 are pre-fixed.

[0044] A locking assembly 16 for locking the wedge block 14 is provided on the channel steel 12 , and an unlocking assembly 17 for unlocking the locking assembly 16 is provided on the connecting bar 11 .

[0045] Reference Figure 3 and Figure 4 The locking assembly 16 includes a receiving box 161 fixed to the lower surface of the fixed box 13, the lower end of the receiving box 161 is closed, and the receiving box 161 is connected to the inside of the fixed box 13. An insert block 162 is slidably inserted in the receiving box 161, and a second elastic member is fixedly connected between one end of the insert block 162 inserted into the receiving box 161 and the bottom of the receiving box 161, and the second elastic member is a second spring 163. A plug hole 18 for inserting the plug block 162 is opened on the side of the wedge block 14 close to the inner rod. When the first spring 15 and the second spring 163 are both in the natural state, the plug block 162 is inserted into the plug hole 18.

[0046] Reference Figure 3 and Figure 4The unlocking assembly 17 includes a limiting ring 171, a sleeve 172 and a reversing wheel 173 which are sequentially arranged on the connecting strip 11 from top to bottom. The limiting ring 171 is sleeved on the connecting strip 11 and is welded and fixed to the connecting strip 11, the sleeve 172 is slidably sleeved with the connecting strip 11, and a hanging ring 174 for hanging with the hook 7 is fixedly connected to the sleeve 172. Two reversing wheels 173 are provided, and the two reversing wheels 173 are symmetrically installed on the connecting strip 11. Two ropes 175 are fixedly connected to the lower surface of the sleeve 172, and the two ropes 175 are symmetrically distributed on the sleeve 172, and the ropes 175 correspond to the reversing wheels 173 one by one. One end of the rope 175 away from the sleeve 172 passes around from the bottom of the reversing wheel 173 and extends to penetrate the bottom of the accommodating box 161 and is fixedly connected to the plug 162.

[0047] When the sound absorbing body 3 is lifted, the corresponding ring 174 of the hook 7 is connected, and the winch 5 is operated to reel in the pull rope 51, thereby driving the sliding sleeve 172 to move upward. The sliding sleeve 172 moves upward to pull the rope 175, and the rope 175 pulls the plug 162 so that the plug 162 withdraws from the socket 18. At this time, the second spring 163 is compressed, and the wedge block 14 can slide normally. When the sliding sleeve 172 moves up to abut against the limit block, the suspension device and the sound absorbing body 3 move upward as a whole. When the channel steel 12 moves up to abut against the main beam 21 and the wedge block 14 is inserted into the through hole, the winch 5 is reversed to loosen the pull rope 51, and the hook 7 is automatically separated from the hook 7 under the action of gravity. At the same time, the second spring 163 rebounds to push the plug 162 into the socket 18, and the wedge block 14 is locked, so that the channel steel 12 is firmly connected to the main beam 21, so that the sound absorbing body 3 is stably hoisted on the truss 1.

[0048] The present application embodiment discloses a construction method for a venue sound-absorbing body connection structure, which comprises the following steps:

[0049] S1. Install the sound absorbing body 3: connect multiple sound absorbing bodies 3 with the first angle steel 8 on the ground through the carabiner 9 and the ring 10, then connect the multiple sound absorbing bodies 3 in series using the series connection assembly 4, connect one end of the sling 43 with the steel cable 41, and complete the installation of the sound absorbing body 3.

[0050] S2, assembling the keel hanger 2: assemble the main beam 21, the cross beam 22 and the second angle steel 23 on the ground.

[0051] S3. Arrange the lifting device: install the winch 5 on the ground below the keel hanger 2, and the construction workers take the ladder with the pull rope 51 of the winch 5 to the height of the truss 1, and then pass the pull rope 51 around the truss 1 and let the free end of the pull rope 51 hang down to the ground.

[0052] S4. Hoisting the keel hanger 2: After the construction workers on the ground tie the pull rope 51 to the keel hanger 2, use the winch 5 to lift the keel hanger 2. When the keel hanger 2 is lifted to the height of the truss 1, the construction workers on the ladder use U-shaped bolts and nuts to fix the main beam 21 to the truss 1 to complete the installation of the keel hanger 2.

[0053] S5. Hoisting the sound-absorbing body 3: After the keel hanger 2 is installed, the pull rope 51 is untied from the keel hanger 2, and then the pull rope 51 is passed around the cross beam 22 and then lowered. The construction personnel on the ground connect the pull rope 6 with the pull rope 51 on the ground, and then connect the hook 7 with the corresponding hanging ring 174. After that, the winch 5 is operated to reel in the pull rope 51. When the pull rope 51 rises to a height close to the lower end of the second angle steel 23, the construction personnel adjust the position of the first angle steel 8 so that the first angle steel 8 can be smoothly inserted between the two opposite second angle steels 23. After the first angle steel 8 is inserted between the two opposite second angle steels 23, the winch 5 continues to operate to reel in the pull rope 51. When the web of the channel steel 12 moves to be in close contact with the main beam 21, the steel cable 41 is connected to the truss 1 by the sling 43. Afterwards, the winch 5 is reversed to loosen the pull rope 51 , and the hook 7 is automatically separated from the hanging ring 174 , thus completing the hoisting of the sound absorbing body 3 .

[0054] S6. Repeat steps S1 to S5 until all the sound absorbing bodies 3 are hoisted.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A venue sound-absorbing body connection structure, characterized in that: It comprises a keel hanger (2), a suspension device for connecting a sound absorbing body (3) and the keel hanger (2), and a lifting device; The keel hanger (2) comprises two main beams (21) for connecting to the truss (1) and a cross beam (22) fixed between the two main beams (21); The suspension device comprises two first angle steels (8), the sound absorbing body (3) is installed between the two first angle steels (8), both ends of the first angle steels (8) are fixedly connected with connecting strips (11), and the connecting strips (11) are provided with a locking mechanism for connecting with the main beam (21); The lifting device comprises a winch (5), and the free end of a pull rope (51) of the winch (5) is connected to four pull ropes (6); The locking mechanism comprises a channel steel (12) fixed to an end of the connecting strip (11) away from the first angle steel (8), the channel steel (12) being engaged with the main beam (21), a fixing box (13) being fixedly connected to the outer wall of the wing plate of the channel steel (12), the fixing box (13) being closed at one end away from the channel steel (12), a wedge block (14) being slidably inserted in the fixing box (13), the inclined surface of the wedge block (14) being away from the bottom of the fixing box (13), the wedge block (14) being The inclined surface of the channel steel (14) is arranged away from the web of the channel steel (12), the wedge block (14) penetrates the wing plate of the channel steel (12), the side wall of the main beam (21) is provided with a through hole for the wedge block (14) to pass through, and a first elastic member is arranged between the wedge block (14) and the bottom of the fixing box (13); a locking component (16) for locking the wedge block (14) is arranged on the channel steel (12), and an unlocking component (17) for unlocking the locking component (16) is arranged on the connecting strip (11).

2. The venue sound absorbing body connection structure according to claim 1, characterized in that: The locking assembly (16) comprises a receiving box (161) fixed on the lower surface of the fixing box (13), the receiving box (161) and the fixing box (13) are connected, an insert block (162) is slidably inserted in the receiving box (161), a second elastic member is arranged between one end of the insert block (162) inserted into the receiving box (161) and the bottom of the receiving box (161), and a plug hole (18) for inserting the plug block (162) is opened on the wedge block (14).

3. The venue sound absorbing body connection structure according to claim 2, characterized in that: The unlocking assembly (17) comprises, from top to bottom, a limiting ring (171) which is sleeved and fixed on the connecting strip (11), a sliding sleeve (172) which is slidably sleeved on the connecting strip (11), and a reversing wheel (173) installed on the connecting strip (11); a rope (175) is arranged on the sliding sleeve (172); an end of the rope (175) away from the sliding sleeve (172) passes under the reversing wheel (173) and penetrates into the accommodating box (161) from the bottom of the accommodating box (161) and is fixedly connected to the plug block (162); a hook (7) is arranged on the end of the pull rope (6) away from the pull rope (51) of the winch (5); a hanging ring (174) is arranged on the sliding sleeve (172), and the hook (7) is hung on the hanging ring (174).

4. The venue sound absorbing body connection structure according to claim 3, characterized in that: Two second angle steels (23) are provided on each of the main beams (21), one end of the second angle steel (23) is vertically fixedly connected to the main beam (21), and the projection of the second angle steel (23) on the ground is pressed against the corner point of the end of the first angle steel (8).

5. The venue sound absorbing body connection structure according to claim 4, characterized in that: It also comprises a series assembly (4), the series assembly (4) comprising a steel cable (41) and a connecting ring (42), the connecting ring (42) being mounted on the side wall of the sound absorbing body (3), the steel cable (41) passing through the connecting rings (42) on a plurality of sound absorbing bodies (3) in sequence, and the two ends of the steel cable (41) being bent and locked by a steel cable clamp.

6. The venue sound absorbing body connection structure according to claim 5, characterized in that: The steel cable (41) is also provided with a sling (43), and one end of the sling (43) away from the steel cable (41) is used for connecting with the truss (1).

7. The construction method of the venue sound-absorbing body connection structure according to claim 6, characterized in that: The following steps are involved: S1, installing the sound absorbing body (3): installing the sound absorbing body (3) on the first angle steel (8) on the ground, connecting a plurality of sound absorbing bodies (3) in series by using a series connection assembly (4), and then connecting one end of a sling (43) to a steel cable (41); S2, assembling the keel hanger (2): assembling the main beam (21), the cross beam (22) and the second angle steel (23) on the ground; S3. Arrange the lifting device: arrange the winch (5) on the ground, install the winch (5) on the ground below the keel hanger (2), and the construction personnel take the ladder with the pull rope (51) of the winch (5) to the height of the truss (1), then pass the pull rope (51) around the truss (1) and let the free end of the pull rope (51) hang down to the ground; S4, hoisting the keel hanger (2): tie the pull rope (51) of the hoist (5) to the crossbeam (22), then use the hoist (5) to hoist the keel hanger (2), and then fix the main beam (21) and the truss (1); S5. Hoisting the sound absorbing body (3): After the keel hanger (2) is installed, the pull rope (51) is untied from the keel hanger (2), and then the pull rope (51) is passed around the crossbeam (22) and then lowered. The construction personnel on the ground connect the hook (7) with the corresponding hanging ring (174) and use the winch (5) to hoist the sound absorbing body (3); when the first angle steel (8) moves to a height close to the second angle steel (23), the construction personnel adjust the The position of the first angle steel (8) is adjusted so that the first angle steel (8) can be smoothly inserted between the two opposite second angle steels (23), and the sound absorbing body (3) is continuously lifted until the web of the channel steel (12) abuts against the main beam (21), and then the steel cable (41) and the truss (1) are connected together by using the sling (43); the winch (5) is reversed to loosen the pull rope (51), so that the hook (7) and the lifting ring (10) are separated, and the lifting of the sound absorbing body (3) is completed; S6. Repeat S1-S5 until all the sound absorbing bodies (3) are hoisted.

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