Prefabricated combined type static pressure box of stand

Abstract

The utility model relates to the technical field of building construction, and provides a stand prefabricated combined type plenum chamber which comprises a plenum chamber body, a suspension piece, an air pipe and a stand structure. The plenum chamber body is connected to the lower portion of the stand structure in a suspended mode through a suspension piece. The air pipe is pre-arranged in the plenum chamber body; a box body air inlet communicated with the air pipe is formed in one end of the static pressure box body; a stand air outlet is formed in the stand structure; a box body air outlet is formed in the position, corresponding to the stand air outlet, of the static pressure box body. The air pipe is arranged in the plenum chamber body in advance, the plenum chamber body provided with the air pipe in advance is installed below the stand structure in a suspension mode through the suspension piece, the construction mode of the plenum chamber is changed, a combined plenum chamber structure is created, construction procedures are reduced, site procedure interpenetration is avoided, the plenum chamber is convenient to install, and the construction period is effectively shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a prefabricated combined static pressure box for a stand. Background Art

[0002] The static pressure box is a traditional ventilation facility that can convert part of the dynamic pressure into static pressure to make the wind blow farther, reduce noise, and improve the static pressure wind output effect. Considering the comfort of watching the game, stadiums will set up air outlets on the back of the seats, and the static pressure box is set at the bottom of the stands. The traditional static pressure box is an upper and lower assembled static pressure box. The upper structure of the static pressure box must be constructed first, and then the lower structure can be constructed after the air duct is completed. The construction period is relatively long. Utility Model Content

[0003] In view of the above problems in the prior art, the present application proposes a prefabricated combined static pressure box for a grandstand, which can effectively shorten the construction period of the static pressure box for the grandstand.

[0004] The utility model proposes a prefabricated combined static pressure box for a grandstand, comprising: a static pressure box body, a suspension part, an air duct and a grandstand structure; the static pressure box body is suspended and connected to the bottom of the grandstand structure through the suspension part; the air duct is preset in the interior of the static pressure box body; one end of the static pressure box body is provided with a box body air inlet connected to the air duct; the grandstand structure is provided with a grandstand air outlet; the static pressure box body is provided with a box body air outlet at a position corresponding to the grandstand air outlet.

[0005] Furthermore, a mineral fiber sound-absorbing spray coating is provided between the static pressure box body and the stand structure.

[0006] Furthermore, the suspension member includes a hanger rod and a keel assembly; the keel assembly is connected to the bottom of the static pressure box body, the top of the hanger rod is connected to the stand structure, and the bottom of the hanger rod is connected to the keel assembly.

[0007] Furthermore, the keel assembly includes a main keel and a secondary keel arranged at intervals in the vertical and horizontal directions; the suspension rod is connected to the main keel, and the secondary keel is connected to the bottom of the static pressure box body.

[0008] Furthermore, the static pressure box body includes two layers of galvanized steel plates and centrifugal glass wool arranged between the two layers of galvanized steel plates.

[0009] Furthermore, the static pressure box body includes a plurality of box body units arranged along its length direction; two adjacent box body units are connected by flanges.

[0010] Furthermore, the stand structure includes a step portion; and a recessed portion for accommodating the step portion is provided on the top of the static pressure box body.

[0011] The beneficial effects of the utility model are as follows: by presetting the air duct inside the static pressure box body, the static pressure box body with the preset air duct is suspended and installed under the stand structure using a suspension part, the construction method of the static pressure box is changed, a combined static pressure box structure is created, the construction process is reduced, the on-site process is avoided, the static pressure box is convenient to install, and the construction period is effectively shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the prefabricated combined static pressure box of the stand of the utility model.

[0013] Figure 2 It is a schematic diagram of the flange connection of two sections of the static pressure box body of the prefabricated combined static pressure box for the stand of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the keel assembly of the prefabricated combined static pressure box of the stand of the utility model.

[0015] Figure 4 It is a structural schematic diagram of two layers of galvanized steel plates of the prefabricated combined static pressure box of the stand of the utility model.

[0016] In the figure, 1-box air inlet; 2-air duct; 3-static pressure box body; 4-galvanized steel plate; 5-centrifugal glass wool; 6-keel assembly; 7-stand air outlet; 8-suspender rod; 9-expansion bolt; 10-flange; 11-sealant; 12-rivet; 13-main keel; 14-secondary keel; 15-fixed connection point; 16-long bolt. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figure 1-Figure 4 The prefabricated combined static pressure box for the stand shown includes: a static pressure box body 3, a suspension member, an air duct 2 and a stand structure; the static pressure box body 3 is suspended and connected to the bottom of the stand structure through the suspension member.

[0019] like Figure 1 As shown, the stand structure includes a plurality of step portions; the top of the static pressure box body 3 is provided with a plurality of recessed portions for accommodating the step portions, and the bottom of the static pressure box body 3 is provided as an inclined surface.

[0020] The air duct 2 is preset inside the static pressure box body 3, and the air duct 2 is processed in advance and installed in combination with the static pressure box body 3; one end of the static pressure box body 3 is provided with a box body air inlet 1 connected with the air duct 2; the stand structure is provided with a stand air outlet 7, and the stand air outlet 7 corresponds to the seat of the stand structure of the venue; the static pressure box body 3 is provided with a box body air outlet at the position corresponding to the stand air outlet 7.

[0021] A sound absorbing layer is arranged between the static pressure box body 3 and the stand structure, and the sound absorbing layer is a mineral fiber sound absorbing spray layer. The mineral fiber sound absorbing spray layer is preferably 30 mm thick, and the mineral fiber sound absorbing spray layer can effectively reduce noise pollution and avoid affecting the viewing experience of the stands.

[0022] like Figure 2 As shown, the static pressure box body 3 includes multiple sections of box units arranged along its length direction; two adjacent sections of box units are connected by flanges 10. The interface is provided with fixed angle pieces, fixed by rivets 12, and caulked by sealant 11.

[0023] like Figure 3 , Figure 4 As shown, the suspension member includes a suspension rod 8 and a keel assembly 6; the keel assembly 6 is connected to the bottom of the static pressure box body 3, the top of the suspension rod 8 is connected to the stand structure, and the bottom of the suspension rod 8 is connected to the keel assembly 6.

[0024] The keel assembly 6 includes a main keel 13 and a secondary keel 14 arranged in a longitudinal and transverse manner; the suspension rod 8 is connected to the main keel 13, such as Figure 3 As shown, the main keel 13 is provided with a fixed connection point 15 connected to the suspension rod 8. The secondary keel 14 is connected to the bottom of the static pressure box body 3.

[0025] The static pressure box body 3 includes two layers of galvanized steel plates 4 and centrifugal glass wool 5 disposed between the two layers of galvanized steel plates 4. The galvanized steel plates 4 can be connected by inorganic adhesive bonding and locked with self-tapping screws, which can ensure the airtightness of the combined static pressure box. The centrifugal glass wool 5 can be replaced by other insulation materials. In other words, the static pressure box body 3 includes two layers of galvanized steel plates 4 and an insulation layer disposed between the two layers of galvanized steel plates 4.

[0026] In this embodiment, the insulation layer uses 25mm thick centrifugal glass wool 5 arranged in the middle of the double-layer 1.5mm thick galvanized steel plate 4, which plays a role in insulation. The use of centrifugal glass wool 5 can also effectively reduce noise pollution and keep the venue quiet. The galvanized steel plate 4 can be fixed to the secondary keel 14 with long bolts 16, and the secondary keel 14 is welded and fixed to the main keel 13.

[0027] The static pressure box body 3 is lifted as a whole. After being lifted to the corresponding position, the suspension rod 8 is connected to the main keel 13. The top of the suspension rod 8 is fixed to the expansion bolt 9 reserved at the bottom of the stand structure. Space for the expansion bolt 9 is reserved between the static pressure box body 3 and the bottom structure of the stand structure.

[0028] The prefabricated combined static pressure box of this embodiment is supplemented by a heat-insulating layer and a sound-absorbing layer to form a closed space, thereby constituting a combined static pressure box structure with good sealing performance.

[0029] The combined static pressure box structure adopts unit assembly and installation, and is uniformly processed and sealed in the factory. The construction process is well optimized, which changes the construction method of the static pressure box and creates a combined static pressure box structure. It reduces the construction process and avoids the interweaving of on-site processes, making the static pressure box easy to install and effectively shortening the construction period.

[0030] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A prefabricated combined static pressure box for a grandstand, characterized in that: include: A static pressure box body, a suspension member, an air duct and a stand structure; the static pressure box body is suspended and connected to the bottom of the stand structure through the suspension member; The air duct is preset inside the static pressure box body; a box air inlet connected to the air duct is arranged at one end of the static pressure box body; a stand air outlet is arranged on the stand structure; and a box air outlet is arranged at a position of the static pressure box body corresponding to the stand air outlet.

2. The prefabricated combined static pressure box of a grandstand according to claim 1, characterized in that: A mineral fiber sound-absorbing spray coating is arranged between the static pressure box body and the stand structure.

3. The prefabricated combined static pressure box of a grandstand according to claim 1, characterized in that: The suspension member includes a suspension rod and a keel assembly; the keel assembly is connected to the bottom of the static pressure box body, the top of the suspension rod is connected to the stand structure, and the bottom of the suspension rod is connected to the keel assembly.

4. The prefabricated combined static pressure box of a grandstand according to claim 3, characterized in that: The keel assembly comprises a main keel and a secondary keel which are arranged at intervals in both directions; the suspension rod is connected to the main keel, and the secondary keel is connected to the bottom of the static pressure box body.

5. The prefabricated combined static pressure box of a grandstand according to claim 3, characterized in that: The static pressure box body comprises two layers of galvanized steel plates and centrifugal glass wool arranged between the two layers of galvanized steel plates.

6. The prefabricated combined static pressure box of a grandstand according to claim 1, characterized in that: The static pressure box body includes a plurality of box body units arranged along its length direction; two adjacent box body units are connected by flanges.

7. The prefabricated combined static pressure box of a grandstand according to claim 1, characterized in that: The stand structure comprises a step portion; and a recessed portion for accommodating the step portion is arranged on the top of the static pressure box body.

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