Galvanized air pipe convenient to butt joint for ventilation equipment

Abstract

The utility model relates to the technical field of building fire fighting equipment, in particular to a conveniently butted galvanized air pipe for ventilation equipment, which comprises an air pipe I and an air pipe II, and is characterized in that a hollow cover plate is welded at one end of the air pipe I, the air pipe II penetrates through the cover plate and is connected with the air pipe I in a sliding manner, and the air pipe II is connected with the air pipe II in a sliding manner. A flange is fixedly connected to the side wall of one end of the second air pipe, positioning holes are formed in the top wall and the bottom wall of the flange, cavities are formed in the top wall and the bottom wall of the flange, and an elastic clamping assembly is arranged in each cavity. By arranging the elastic clamping assembly, the second air pipe only needs to be manually pushed into the first air pipe, the elastic clamping assembly automatically and preliminarily limits the second air pipe, the second air pipe is prevented from being automatically separated from the first air pipe, follow-up locking operation is facilitated, the upper sealing plate, the lower sealing plate and the side sealing plate are further arranged to further limit the second air pipe, and the sealing effect is good. And a good sealing effect is formed by tight contact.

Description

Technical Field

[0001] The utility model relates to the technical field of building fire fighting equipment, in particular to a galvanized air duct for ventilation equipment which is easy to connect. Background Art

[0002] Galvanized air ducts are required for kitchen smoke exhaust, fire protection, ventilation, etc. in buildings. Galvanized air ducts are generally hung on the wall and located at a higher position. Galvanized air ducts are not formed in one piece, but are divided into multiple parts for easy docking with other instruments or equipment. During installation, the multiple parts are docked into one. However, galvanized air ducts often need to be installed higher on the wall.

[0003] Existing galvanized air ducts are fastened with screws, bolts and other fasteners when docking. During the docking, it is necessary to hold the galvanized air ducts on both sides manually at all times, and then use bolts to tighten and fix the joints of the air ducts on both sides. However, this docking method is prone to the risk of the air duct falling off during the tightening of the bolts, which interferes with the tightening of the fixing bolts.

[0004] Therefore, a galvanized air duct for ventilation equipment which is easy to connect is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a galvanized air duct for ventilation equipment which is easy to connect. By setting an elastic clamping component, air duct two is pre-positioned so that it will not automatically detach. Human hands do not need to hold up air duct one and air duct two all the time, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A galvanized air duct for ventilation equipment which is easy to connect, including:

[0008] It includes air duct 1 and air duct 2. A cover plate is welded at one end of the air duct 1, and the cover plate is set to be hollow. The air duct 2 passes through the cover plate and is slidably connected to the air duct 1. A flange is fixedly connected to the side wall of one end of the air duct 2, and positioning holes are provided on the top wall and bottom wall of the flange. Cavities are provided on the top wall and bottom wall of the flange, and an elastic clamping component is provided in each of the cavities.

[0009] Preferably, the elastic clamping assembly includes a spring, a positioning block, and a tightening plate. The tightening plate is threadedly connected in the cavity, one end of the spring is fixedly connected to the side wall of the tightening plate, and one end of the spring away from the tightening plate is fixedly connected to the positioning block. The positioning block extends to the outside of the cavity, and one end of the positioning block is provided with a chamfer.

[0010] Preferably, a plurality of side blocks are fixedly connected to the side wall of the air duct facing one end of the cover plate, and the plurality of side blocks are respectively fixedly installed at the angle of one side wall of the air duct, and an upper sealing plate, a lower sealing plate and a side sealing plate are respectively slidably installed between each two adjacent side blocks, and two side sealing plates are provided, and the two side sealing plates are symmetrically arranged on both sides of the air duct one, and the upper sealing plate and the lower sealing plate are respectively arranged on the upper and lower sides of the air duct one, and the upper sealing plate, the lower sealing plate and the side sealing plate are all provided with through grooves, and the lower sealing plate is provided with a locking assembly.

[0011] Preferably, the locking assembly includes a locking rod and a steel wire rope, the locking rod is threadedly connected to the bottom wall of the air duct, and one end of the locking rod extends into the through groove on the lower sealing plate, the steel wire rope is arranged in the through groove and forms a closed loop, and the steel wire rope is wound around the locking rod.

[0012] Preferably, a groove is provided on the flange, and the groove is trapezoidal, and one end of the upper sealing plate, the lower sealing plate and the side sealing plate are all provided with a chamfer that matches the rectangular groove.

[0013] Preferably, the upper sealing plate and the side sealing plates are fixedly connected with pull rods, and a plurality of the pull rods pass through the air duct and extend outwardly.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. An elastic clamping component is set. Manually, only air duct 2 needs to be pushed into air duct 1. The elastic clamping component will automatically limit the air duct 2 to prevent the air duct 2 from automatically separating from the air duct 1, which is convenient for subsequent locking operations. An upper sealing plate, a lower sealing plate, and a side sealing plate are also set to further limit the air duct 2, and close contact forms a good sealing effect.

[0016] 2. A locking rod is threadedly connected to the bottom wall of air duct one. When the locking rod is rotated, displacement 2 can be generated to push the lower sealing plate upward, and a steel wire rope is arranged to pass through the lower sealing plate, the upper sealing plate and the two side sealing plates. The steel wire rope is also wound around the locking rod. The connection between air duct two and air duct one can be locked and sealed by simply rotating the locking rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the locking assembly structure of the utility model;

[0019] Figure 3 for Figure 1 A magnified view of the structure at center;

[0020] Figure 4 This is a schematic diagram of the edge block structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the locking assembly of the utility model.

[0022] In the figure: 1. Air duct one; 2. Air duct two; 3. Lower sealing plate; 4. Groove; 5. Locking rod; 6. Through groove; 7. Spring; 8. Positioning block; 9. Positioning hole; 10. Side sealing plate; 11. Upper sealing plate; 12. Wire rope; 13. Side block; 14. Cover plate; 15. Flange; 16. Tightening plate; 17. Pull rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 The utility model provides a galvanized air duct for ventilation equipment that is easy to connect, and the technical solution is as follows:

[0025] like Figure 1 As shown, a galvanized air duct for ventilation equipment that is easy to connect includes an air duct 1 and an air duct 2. A cover plate 14 is welded to one end of the air duct 1, and the cover plate 14 is set to be hollow. The air duct 2 passes through the cover plate 14 and is slidably connected to the air duct 1. A flange 15 is fixedly connected to the side wall of one end of the air duct 2, and positioning holes 9 are provided on the top and bottom walls of the flange 15. Cavities are provided on the top and bottom walls of the flange 15, and an elastic clamping component is provided in each of the cavities.

[0026] When docking, the air duct 2 is passed through the cover plate 14 and docked with the air duct 1. The flange 15 contacts the inner wall of the cover plate 14. When one end of the air duct 2 is pushed to a position in contact with the side wall of one end of the air duct 1, the positioning hole 9 is pushed to a position corresponding to the elastic clamping component. The elastic clamping component cooperates with the positioning hole 9 to automatically limit the position of the air duct 2, making it more convenient to dock the air duct 2 with the air duct 1. Figure 2As shown, the elastic clamping assembly includes a spring 7, a positioning block 8, and a tightening plate 16, and the tightening plate 16 is threadedly connected in the cavity, one end of the spring 7 is fixedly connected to the side wall of the tightening plate 16, and the end of the spring 7 away from the tightening plate 16 is fixedly connected to the positioning block 8, and the positioning block 8 extends to the outside of the cavity. One end of the positioning block 8 is provided with a chamfer. When the air duct 2 is pushed to connect with the air duct 1, the flange 15 contacts the chamfer on the positioning block 8. Under the thrust of the flange 15, a force in the same direction as the axial direction of the positioning block 8 is generated on the positioning block 8, thereby pushing the positioning block 8 to compress the spring 7 and generate displacement. When the positioning hole 9 is pushed to the position aligned with the positioning block 8, the positioning block 8 is stuck in the positioning hole 9 under the thrust of the spring 7, thereby automatically forming a preliminary limit for the air duct 1 and the air duct 2 to prevent the two from automatically disengaging, which is more convenient for the subsequent docking steps, and there is no need to hold the air duct 1 and the air duct 2 by hand at all times.

[0027] like Figure 4 and Figure 5 As shown, a plurality of side blocks 13 are fixedly connected to the side wall of the air duct 1 facing the cover plate 14 at one end, and the plurality of side blocks 13 are respectively fixedly installed at the angles of the side walls of the air duct 1. After the initial limiting is completed, the docking operation has been basically completed, but its structure is not tight and is prone to air leakage. A plurality of side blocks 13 are arranged, and the cover plate 14 is welded to the side blocks 13 and the side walls of the air duct 1, so that a movable space is formed between each two adjacent side blocks 13, and an upper sealing plate 11, a lower sealing plate 3, and a side sealing plate 10 are respectively slidably installed between each two adjacent side blocks 13. The side sealing plates 10 are provided with two, and the two side sealing plates 10 are symmetrically arranged on both sides of the air duct 1. The upper sealing plate 11 and the lower sealing plate 3 are respectively arranged on the upper and lower sides of the air duct 1, and the upper sealing plate 11, the lower sealing plate 3, and the side sealing plate 10 are all provided with through grooves 6, and the lower sealing plate 3 is provided with a locking assembly.

[0028] After completing the initial limiting operation on air duct 2 and air duct 1, the locking assembly, upper sealing plate 11, lower sealing plate 3, and side sealing plate 10 can be controlled to retract inward to further limit the air duct 2, and can be in close contact with the upper flange 15 of air duct 2, with a good sealing effect.

[0029] like Figure 2 As shown, the locking assembly includes a locking rod 5 and a steel wire rope 12. The locking rod 5 is threadedly connected to the bottom wall of the air duct, and one end of the locking rod 5 extends into the through groove 6 on the lower sealing plate 3. The steel wire rope 12 is arranged in the through groove 6 and forms a closed loop, and the steel wire rope 12 is wound around the locking rod 5.

[0030] After completing the initial limiting operation, the locking rod 5 is manually rotated, and the locking rod 5 moves upward during the rotation, pushing the lower sealing plate 3 to move upward, so that the lower sealing plate 3 is in close contact with the flange 15, and the wire rope 12 is wrapped around the locking rod 5. When the locking rod 5 rotates, the wire rope 12 is tightened, thereby driving the upper sealing plate 11 and the two side sealing plates 10 to move inward, so that the upper sealing plate 11 and the two side sealing plates 10 are in close contact with the flange 15 on the surface of the air duct 2.

[0031] The flange 15 is provided with a groove 4 , which is trapezoidal in shape. One end of the upper sealing plate 11 , the lower sealing plate 3 , and the side sealing plate 10 are all provided with a chamfer that matches the rectangular groove 4 .

[0032] When the locking rod 5 is manually rotated, the upper sealing plate 11, the lower sealing plate 3 and the two side sealing plates 10 are all embedded in the groove 4 to form a tight sealing structure with high sealing performance.

[0033] The upper sealing plate 11 and the side sealing plate 10 are fixedly connected with pull rods 17, and a plurality of the pull rods 17 pass through the air duct 1 and extend outward.

[0034] When it is necessary to disassemble the air duct 1 and the air duct 2, the tightening plate 16 is manually rotated to cancel the limiting effect of the positioning block 8 on the flange 15, the locking rod 5 is manually rotated to loosen the wire rope 12, and the upper sealing plate 11 and the two side sealing plates 10 are moved outward by the pull rod 17.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A galvanized air duct for ventilation equipment that is easy to connect, comprising an air duct 1 (1) and an air duct 2 (2), characterized in that: A cover plate (14) is welded to one end of the air duct one (1), and the cover plate (14) is set to be hollow. The air duct two (2) passes through the cover plate (14) and is slidably connected to the air duct one (1). A flange (15) is fixedly connected to the side wall of one end of the air duct two (2), and positioning holes (9) are provided on the top wall and the bottom wall of the flange (15). The top wall and the bottom wall of the flange (15) are provided with cavities, and each of the cavities is provided with an elastic clamping component.

2. The galvanized air duct for ventilation equipment that is easy to connect according to claim 1 is characterized in that: The elastic clamping assembly comprises a spring (7), a positioning block (8), and a tightening plate (16); the tightening plate (16) is threadedly connected in the cavity; one end of the spring (7) is fixedly connected to the side wall of the tightening plate (16); one end of the spring (7) away from the tightening plate (16) is fixedly connected to the positioning block (8); the positioning block (8) extends to the outside of the cavity; and one end of the positioning block (8) is provided with a chamfer.

3. The galvanized air duct for ventilation equipment that is easy to connect according to claim 2 is characterized in that: A plurality of side blocks (13) are fixedly connected to the side wall of the air duct (1) at one end facing the cover plate (14). The plurality of side blocks (13) are respectively fixedly installed at the angles of the side walls of the air duct (1). An upper sealing plate (11), a lower sealing plate (3) and a side sealing plate (10) are respectively slidably installed between each two adjacent side blocks (13). Two side sealing plates (10) are provided. The two side sealing plates (10) are symmetrically arranged on both sides of the air duct (1). The upper sealing plate (11) and the lower sealing plate (3) are respectively arranged on the upper and lower sides of the air duct (1). Through grooves (6) are provided on the upper sealing plate (11), the lower sealing plate (3) and the side sealing plate (10), and a locking assembly is provided on the lower sealing plate (3).

4. The galvanized air duct for ventilation equipment that is easy to connect according to claim 3 is characterized in that: The locking assembly comprises a locking rod (5) and a steel wire rope (12); the locking rod (5) is threadedly connected to the bottom wall of the air duct, and one end of the locking rod (5) extends into a through groove (6) on the lower sealing plate (3); the steel wire rope (12) is arranged in the through groove (6) to form a closed loop, and the steel wire rope (12) is wound around the locking rod (5).

5. The galvanized air duct for ventilation equipment that is easy to connect according to claim 4 is characterized in that: The flange (15) is provided with a groove (4), the groove (4) is trapezoidal, and one end of the upper sealing plate (11), the lower sealing plate (3) and the side sealing plate (10) are all provided with a chamfer that matches the rectangular groove (4).

6. The galvanized air duct for ventilation equipment that is easy to connect according to claim 4, characterized in that: The upper sealing plate (11) and the side sealing plate (10) are both fixedly connected with pull rods (17), and a plurality of the pull rods (17) pass through the air duct 1 (1) and extend outwards.

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