Large-size ventilation opening multi-petal connecting structure

Abstract

The utility model relates to the technical field of ventilation equipment. The large-size ventilation opening multi-petal connecting structure comprises a plurality of petal bodies forming a ventilation opening, connecting edges are arranged on the edges of the petal bodies, a clamping pad extending in the length direction of the connecting edges is arranged between the connecting edges of every two adjacent petal bodies, and the connecting edges are locked through a plurality of connecting assemblies. Each connecting assembly comprises two sets of split bolts, a turning piece and a hooking piece, each turning piece comprises a vertical edge section and a bevel edge section which form an obtuse angle, and each hooking piece comprises a vertical edge section and a bevel edge section which form an acute angle; the inclination degrees of the bevel edge sections of the bent sheet and the hook sheet are matched; the tail end of the bevel edge section of the bent piece is provided with an insertion hole for the vertical edge section of the hook piece to penetrate from top to bottom, and the vertical edge section of the bent piece and the vertical edge section of the hook piece are provided with bolt holes matched with the split bolt. According to the utility model, the stability of connection between petal bodies of the large-scale ventilation opening can be effectively improved, the shearing force borne by the bolt is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation equipment technical field, concretely relates to a large -size ventilation opening multi -lobe connecting structure. BACKGROUND

[0002] Large -size ventilation opening is a kind of special ventilation opening used in subway, large -scale commercial building, large -scale workshop etc., generally designed as "the place where the sky is round", due to its large size, it is usually needed to be individually processed into multiple lobe bodies, and then assembled after reaching installation position, to facilitate processing and transportation.The large -size ventilation opening is generally enclosed by galvanized steel sheet, and the edge thereof is reinforced by angle steel, when assembling, the angle steel between adjacent lobe bodies is connected by bolt as connecting edge, and then a reinforcing support is bolted inside the ventilation opening to form effective internal support, which is more efficient and convenient for later maintenance.

[0003] However, for some large -size ventilation openings, due to large size and heavy weight, the bolt at the connecting part is subjected to large shear force after the assembly of the ventilation opening is completed, which affects the service life, and in many cases, on -site reinforcement welding is necessary to make up for it, but this will undoubtedly affect the later maintenance. In addition, due to large air volume, large -size ventilation openings are often accompanied by large vibration, which leads to the risk of welding node detachment and the risk of bolt fracture. Therefore, how to solve the lobe body connection problem of large -size ventilation opening has become an important problem in the field. SUMMARY

[0004] The utility model aims at providing a large -size ventilation opening multi -lobe connecting structure with good connection stability.

[0005] To achieve the above-mentioned purpose of the application, the technical scheme adopted by the utility model is as follows: a large -size ventilation opening multi -lobe connecting structure, comprising a plurality of lobe bodies constituting a ventilation opening, the edge of the lobe body is provided with a connecting edge, a clamping pad extending along the length direction of the connecting edge is arranged between the connecting edges of two adjacent lobe bodies, and a plurality of connecting assemblies are used to lock the connecting edge.

[0006] Each connecting assembly comprises two sets of tension bolts, a bent piece and a hooked piece, the bent piece comprises a vertical edge segment and an inclined edge segment constituting an obtuse angle, and the hooked piece comprises a vertical edge segment and an inclined edge segment constituting an acute angle; the inclination of the inclined edge segments of the bent piece and the hooked piece is adapted to each other; the tail end of the inclined edge segment of the bent piece is provided with a insertion hole for the vertical edge segment of the hooked piece to pass from top to bottom, and the vertical edge segments of the bent piece and the hooked piece are provided with bolt holes matched with the tension bolts;

[0007] The connecting edge and the clamping pad are provided with a plurality of groups of connecting holes, the connecting holes sequentially comprise a first connecting hole, a second connecting hole and a third connecting hole from top to bottom; the first connecting hole and the third connecting hole are opposite to the bolt hole, and the second connecting hole is opposite to the oblique edge section of the hook piece; the oblique edge section of the hook piece passes through the second connecting hole, the vertical edge section of the hook piece passes through the insertion hole, and the oblique edge section of the hook piece tightens the oblique edge section of the hook piece.

[0008] Preferably, the interval of the two adjacent groups of connecting assemblies is 15-50cm.

[0009] Preferably, the thickness of the hook piece and the hook piece is 5-10mm.

[0010] Preferably, the obtuse angle of the hook piece is 110-160°, and the acute angle of the hook piece is 20-70°.

[0011] Preferably, the clamping pad is a rubber pad.

[0012] Preferably, the hook piece and the hook piece of the two adjacent groups of connecting assemblies are alternately arranged left and right.

[0013] The beneficial effects of the utility model are embodied as follows: the stability of the connection between the petals of a large ventilation opening can be effectively improved, the shear force borne by the bolt is reduced, and the service life is improved. Specifically, in the use process, the connecting edge of the adjacent petals is tightly hooked and clamped by the application of the hook piece and the hook piece, on the one hand, the addition of the hook piece and the hook piece itself plays a reinforcing role, and on the other hand, the vertical edge section of the hook piece is designed to be inclined, part of the shear force borne by the hook piece is converted into the tension on the oblique edge section of the hook piece, so that the service life is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of a ventilation opening;

[0015] Figure 2 It is an installation schematic view of a connecting assembly;

[0016] Figure 3 It is Figure 2 It is an enlarged view of A part in the middle. DETAILED DESCRIPTION

[0017] As Figures 1-3As shown, a large size ventilation port multi-petal connecting structure, mainly applied in large supermarkets, subway lines / stations and other places requiring large air volume ventilation, similar to the traditional large ventilation port, and also including a plurality of petals 1 constituting the ventilation port, the edge of the petal 1 is provided with a connecting edge 2, the connecting edge 2 is generally an angle steel, the connecting edges 2 of the adjacent two petals 1 are provided with a clamping pad 3 extending along the length direction of the connecting edge 2, the clamping pad 3 can be a steel pad, a rubber pad and the like, used for buffering the stress between the connecting edges 2 of the adjacent petals 1, and the connecting edges 2 of the petals 1 are locked by a plurality of connecting assemblies.

[0018] The biggest difference of the utility model lies in the connecting assembly, such as Figure 2 As shown, a plurality of connecting assemblies are distributed along the length direction of the connecting edge 2, such as Figure 3 Each of the connecting assemblies includes two sets of tension bolts 4, a bent piece 5 and a hook piece 6, the bent piece 5 and the hook piece 6 are generally made of high-strength steel with a thickness of 5-10 mm, the bent piece 5 includes a vertical edge segment and an inclined edge segment constituting an obtuse angle, and the hook piece 6 includes a vertical edge segment and an inclined edge segment constituting an acute angle. The obtuse angle of the bent piece 5 is generally 110-160°, and 145° is the most common, and the acute angle of the hook piece 6 is 20-70°, and the inclination of the inclined edge segments of the bent piece 5 and the hook piece 6 is adapted. For example, the bent piece 5 is 135°, and the hook piece 6 is 45°. Both of them adopt a structure of inserting and hooking, the tail end of the inclined edge segment of the bent piece 5 is provided with a plug hole 7 for the vertical edge segment of the hook piece 6 to pass from top to bottom, and in use, the inclined edge segment of the bent piece 5 passes through the inclined hole (the second connecting hole described below) on the connecting edge 2 and the clamping pad 3, the vertical edge segment of the hook piece 6 passes through the plug hole 7, and the inclined edge segment of the hook piece 6 tightens the inclined edge segment of the bent piece 5. In order to further realize installation, the vertical edge segments of the bent piece 5 and the hook piece 6 are provided with bolt holes matched with the tension bolts 4.

[0019] At the same time, as shown in Figure 3 The connecting edge 2 and the clamping pad 3 are provided with a plurality of connecting holes, the connecting holes include a first connecting hole, a second connecting hole and a third connecting hole from top to bottom. The first connecting hole and the third connecting hole are opposite to the bolt hole, and the second connecting hole is opposite to the inclined edge segment of the bent piece 5.

[0020] The utility model discloses in the use process, through the application of elbow piece 5 and hook piece 6, the connecting edge 2 of adjacent petal body 1 is tightly hooked and draws clamped, on one hand, the addition of elbow piece 5 and hook piece 6 plays the role of strengthening, on the other hand, the vertical edge section of elbow piece 5 is designed to be inclined, and part of the shear force received by it is converted into the tension of the bevel section of elbow piece 5, so that the service life is greatly improved. In order to keep the balance of both sides, the elbow piece 5 and hook piece 6 of the adjacent two groups of connecting assemblies are alternately arranged left and right. That is, one is that elbow piece 5 passes from left to right, and hook piece 6 is on the right side, and the other is that elbow piece 5 passes from right to left, and hook piece 6 is on the left side. The spacing of the adjacent two groups of connecting assemblies is set between 15-50cm according to the size of the air vent.

Claims

1. A large-size vent multi-petal connecting structure, comprising a plurality of petals (1) constituting a vent, the edge of the petal (1) being provided with a connecting edge (2), the connecting edges (2) of two adjacent petals (1) being provided with a clamping pad (3) extending along the length direction of the connecting edge (2), and being locked by a plurality of connecting assemblies; characterized in that each connecting assembly comprises two sets of opposite pull bolts (4), a hooking piece (5) and a hooking piece (6), the hooking piece (5) comprising a vertical edge segment and an oblique edge segment constituting an obtuse angle, the hooking piece (6) comprising a vertical edge segment and an oblique edge segment constituting an acute angle; the oblique edge segments of the hooking piece (5) and the hooking piece (6) are adapted to each other; the tail end of the oblique edge segment of the hooking piece (5) is provided with a insertion hole (7) for the vertical edge segment of the hooking piece (6) to pass from top to bottom, and the vertical edge segments of the hooking piece (5) and the hooking piece (6) are provided with bolt holes matched with the opposite pull bolts (4); the connecting edge (2) and the clamping pad (3) are provided with a plurality of connecting holes, the connecting holes comprising a first connecting hole, a second connecting hole and a third connecting hole from top to bottom; the first connecting hole and the third connecting hole are opposite to the bolt hole, and the second connecting hole is opposite to the oblique edge segment of the hooking piece (5); the oblique edge segment of the hooking piece (5) passes through the second connecting hole, the vertical edge segment of the hooking piece (6) passes through the insertion hole (7), and the oblique edge segment of the hooking piece (6) tightens the oblique edge segment of the hooking piece (5).

2. The large size vent multi-flap connection structure according to claim 1, wherein: The distance between two adjacent connecting assemblies is 15-50 cm.

3. The large size vent multi-flap connection structure according to claim 2, wherein: The thickness of the hooking piece (5) and the hooking piece (6) is 5-10 mm.

4. The large size vent multi-flap connection structure according to claim 3, characterized in that: The obtuse angle of the hooking piece (5) is 110-160°, and the acute angle of the hooking piece (6) is 20-70°.

5. The large size vent multi-flap connection structure according to claim 1, wherein: The clamping pad (3) is a rubber pad.

6. The large size vent multi-flap connection structure according to claim 1, wherein: The hooking pieces (5) and the hooking pieces (6) of two adjacent connecting assemblies are alternately arranged left and right.

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