Self-locking flange connecting structure of fireproof air pipe

Abstract

The utility model discloses a self-locking flange connecting structure of a fireproof air pipe, which comprises a first fireproof air pipe and a second fireproof air pipe, a first flange plate and a second flange plate are respectively arranged at the opposite ends of the first fireproof air pipe and the second fireproof air pipe, and the opposite surfaces of the first flange plate and the second flange plate are respectively provided with an annular groove. Sealing washers are arranged in the two sets of annular grooves, multiple sets of flange holes are formed in the opposite faces of the first flange plate and the second flange plate, the side wall of the second fireproof air pipe is fixedly sleeved with a sleeving cover, two sets of mounting boxes are mounted on the side wall of the sleeving cover, and a screw rod is mounted in the sleeving cover through a bearing; the side wall of the lead screw rod is sleeved with a lead screw sleeve, and the side wall of the lead screw sleeve is fixedly sleeved with a sleeving hole plate. The self-locking flange connecting structure has the advantages that the sleeving cover is adopted, the two flange structures can be conveniently disassembled and assembled through the arranged sleeving cover, and convenience is brought to disassembly and assembly of the self-locking flange connecting structure of the fireproof air pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire -proof air pipe connecting technical field, concretely, relate to the self -locking flange connecting structure of fire -proof air pipe. BACKGROUND

[0002] Fire -proof air pipe is a kind of ventilation duct with fire -resistant performance, mainly used to control the spread of fire and guarantee the normal operation of ventilation system when fire occurs, provide favorable conditions for personnel evacuation and fire rescue, the connection between fire -proof air pipe needs to be realized by self -locking flange, practical use has the advantages such as simple operation, stable structure and good connecting effect.

[0003] Prior art discloses application number: CN202222504123.1 a quick release type self -locking flange, the utility model discloses flange one and flange two are fixedly installed with spring, cannot realize the separation of flange one and flange two, further cannot realize the separation of adjacent two fire -proof air pipes, for this utility model's dismounting brings inconvenience, simultaneously, when flange one and flange two are connected, need to be transferred, no supporting structure, cannot conveniently realize the convenient movement or stability of flange one and flange two, reduce the practicality of use of this utility model.

[0004] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a self-locking flange connecting structure for fire -proof air pipe, which has the advantages of being able to conveniently dismount two flange structures, having a supporting structure, and being able to conveniently move or stabilize two flange structures, thereby solving the problems in the background art.

[0006] To achieve the above-mentioned advantages of being able to conveniently dismount two flange structures, having a supporting structure, and being able to conveniently move or stabilize two flange structures, the utility model adopts the following specific technical solutions:

[0007] The self-locking flange connection structure for fireproof air ducts includes a first fireproof air duct and a second fireproof air duct. A first flange and a second flange are respectively installed at the opposite ends of the first and second fireproof air ducts. Both the first and second flanges have annular grooves on their facing surfaces, and sealing gaskets are installed inside the two sets of annular grooves. Multiple flange holes are formed on the facing surfaces of both the first and second flanges. A sleeve cover is fixedly fitted onto the side wall of the second fireproof air duct. Two sets of mounting boxes are installed on the side wall of the sleeve cover. A lead lever is installed inside the sleeve cover via bearings, and a lead screw sleeve is fitted onto the side wall of the lead lever. A sleeve hole plate is fixedly fitted onto the side wall of the lead screw sleeve. The sidewall of the socket plate is provided with multiple sets of ball sockets, and each set of ball sockets is provided with a ball bearing. Multiple sets of insert rods are installed on the upper part of the socket plate. One end of each set of insert rods slides through multiple sets of flange holes. The inner wall of each set of flange holes is provided with a threaded through hole, and a threaded plug is inserted into each set of threaded through holes. Two sets of crossbars slide through one end of each set of threaded plugs. A connecting plate is installed at one end of each set of crossbars on the same side. An inclined block is installed on the facing surface of each set of connecting plates. A handle is installed at the other end of each set of crossbars on the same side. A spring is sleeved on the sidewall of each set of crossbars on the same side. Slots are provided on the sidewall of each set of insert rods.

[0008] Furthermore, both sets of mounting boxes have adjusting screws threaded through their lower parts, and both sets of adjusting screws have casters installed at their lower ends. Both sets of adjusting screws have threaded tubes sleeved on their side walls, and multiple sets of brake pads are installed at the lower ends of the threaded tubes.

[0009] Furthermore, the two sets of adjusting screws and the two sets of threaded pipe threads are mutually engaged.

[0010] Furthermore, the diameter of the opening at the ball socket of the plurality of sets is smaller than the diameter of the plurality of sets of balls.

[0011] Furthermore, the multiple sets of threaded through holes and the multiple sets of threaded plugs cooperate with each other.

[0012] Furthermore, the lead lever and the lead screw thread are mutually engaged.

[0013] Furthermore, a handwheel is installed at the lower end of the lever.

[0014] Compared with the prior art, this utility model provides a self-locking flange connection structure for fireproof air ducts, which has the following advantages:

[0015] (1) This utility model adopts a socket cover. When using the self-locking flange connection structure of the fireproof air duct, the operator moves the first flange and the second flange in opposite directions by hand. When the upper multiple flange holes and the lower multiple flange holes correspond, the operator rotates the handwheel clockwise by hand, which can drive the screw lever to rotate. Since the screw lever and the screw sleeve are mutually engaged, the rotating screw lever can push the screw sleeve. The screw sleeve can move multiple sets of insert rods through the socket plate. When multiple sets of insert rods are inserted into the upper multiple flange holes through the lower multiple flange holes, one set of insert rods on the same side can push one set of inclined blocks on the same side to move. At this time, this set of inclined blocks can squeeze two sets of springs on the same side through one set of connecting plates on the same side. When one set of inclined blocks on the same side corresponds to one set of slots on the same side, the two sets of springs on the same side are subjected to their own elastic force and push through the slot. Moving one set of connecting plates on the same side allows one set of inclined blocks on the same side to move into one set of slots on the same side. The use of the remaining inserts is the same as the operation. At this time, the connection of the first flange and the second flange is completed. When it is necessary to separate the first flange and the second flange, the operator pulls multiple sets of handles by hand. Through the two sets of crossbars on the same side, multiple sets of connecting plates are moved. When multiple sets of inclined blocks move out of multiple sets of slots, the handwheel can be rotated counterclockwise. At this time, multiple sets of inserts will gradually move out of multiple sets of flange holes above and multiple sets of flange holes below. Then the first flange and the second flange can be separated. During the movement of the socket plate, multiple sets of balls will roll along the inner wall of the socket cover. The socket cover facilitates the disassembly and assembly of the two flange structures, bringing convenience to the disassembly and assembly of the self-locking flange connection structure of the fireproof air duct.

[0016] (2) This utility model adopts an installation box and adjusting screws. According to the above operation, after the first flange and the second flange are connected, the operator rotates the two sets of adjusting screws counterclockwise by hand. The two sets of adjusting screws will gradually move out of the two sets of installation boxes. The first flange and the second flange can be moved with the help of the two sets of casters. When positioning is required, the two sets of adjusting screws and the two sets of threaded pipe threads cooperate with each other. The operator rotates the two sets of threaded pipes clockwise by hand. When the multiple sets of brake pads contact the ground, the first flange and the second flange are stably fixed. With the installation box and adjusting screws, a support structure is provided, which can facilitate the movement or stabilization of the two flange structures and improve the practicality of the self-locking flange connection structure of the fireproof air duct. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the self-locking flange connection structure for fireproof air ducts proposed in this utility model;

[0019] Figure 2 This is a partial front view of the adjusting screw proposed in this utility model;

[0020] Figure 3 This utility model proposes Figure 1 Enlarged view of A in the middle;

[0021] Figure 4 This utility model proposes Figure 1 Enlarged view of B in the middle;

[0022] Figure 5 This is a perspective view of the threaded plug proposed in this utility model.

[0023] In the picture:

[0024] 1. First fireproof air duct; 2. Second fireproof air duct; 3. First flange; 4. Second flange; 5. Annular groove; 6. Sealing gasket; 7. Socket cover; 8. Mounting box; 9. Adjusting screw; 10. Lead screw lever; 11. Lead screw sleeve; 12. Socket plate; 13. Ball socket; 14. Ball bearing; 15. Insert rod; 16. Threaded through hole; 17. Threaded plug; 18. Crossbar; 19. Connecting plate; 20. Wedge block; 21. Slot; 22. Spring; 23. Handle; 24. Caster wheel; 25. Threaded pipe; 26. Brake pad. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a self-locking flange connection structure for fireproof air ducts is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-5As shown, the self-locking flange connection structure of the fireproof air duct according to an embodiment of the present invention includes a first fireproof air duct 1 and a second fireproof air duct 2. A first flange 3 and a second flange 4 are respectively installed at the opposite ends of the first fireproof air duct 1 and the second fireproof air duct 2. Both the opposite surfaces of the first flange 3 and the second flange 4 are provided with annular grooves 5, and sealing gaskets 6 are provided inside the two sets of annular grooves 5. Multiple sets of flange holes are opened on the opposite surfaces of the first flange 3 and the second flange 4. A sleeve cover 7 is fixedly fitted onto the side wall of the second fireproof air duct 2. Two sets of mounting boxes 8 are installed on the side wall of the sleeve cover 7. A screw lever 10 is installed inside the sleeve cover 7 via bearings, and a screw rod sleeve 11 is fitted onto the side wall of the screw rod sleeve 10. A sleeve hole plate 12 is fixedly fitted onto the side wall of the screw rod sleeve 11. Multiple sets of ball sockets 1 are provided on the side wall of the sleeve hole plate 12. 3. Each of the multiple sets of ball sockets 13 is equipped with a ball bearing 14. Each of the upper parts of the socket plate 12 is equipped with multiple sets of insert rods 15. One end of each set of insert rods 15 slides through multiple sets of flange holes. The inner walls of the upper sets of flange holes are provided with threaded through holes 16. Each set of threaded through holes 16 is fitted with a threaded plug 17. One end of each set of threaded plugs 17 slides through two sets of crossbars 18. One end of each set of crossbars 18 on the same side is equipped with a connecting plate 19. Each set of connecting plates 19 has a wedge 20 installed on its facing surface. The other end of each set of crossbars 18 on the same side is equipped with a handle 23. The side walls of each set of crossbars 18 on the same side are fitted with springs 22. The side walls of each set of insert rods 15 are provided with slots 21. The socket cover 7 facilitates the disassembly and assembly of the two flange structures, bringing convenience to the disassembly and assembly of the self-locking flange connection structure of the fireproof air duct.

[0028] In one embodiment, the lower parts of both sets of mounting boxes 8 are threaded with adjusting screws 9, the lower ends of both sets of adjusting screws 9 are equipped with casters 24, the side walls of both sets of adjusting screws 9 are fitted with threaded tubes 25, and the lower ends of both sets of threaded tubes 25 are equipped with multiple sets of brake pads 26. Through the mounting boxes 8 and adjusting screws 9, a support structure is provided, which can facilitate the movement or stabilization of the two flange structures, thereby improving the practicality of the self-locking flange connection structure of the fireproof air duct.

[0029] In one embodiment, the two sets of adjusting screws 9 and the two sets of threaded tubes 25 are threaded together to facilitate the adjustment of the usage position of the two sets of threaded tubes 25.

[0030] In one embodiment, the diameter of the opening of the multiple sets of ball sockets 13 is smaller than the diameter of the multiple sets of balls 14, so as to prevent the multiple sets of balls 14 from moving out of the interior of the multiple sets of ball sockets 13.

[0031] In one embodiment, multiple sets of threaded through holes 16 and multiple sets of threaded plugs 17 are threadedly engaged with each other, facilitating the installation and removal of the multiple sets of threaded plugs 17.

[0032] In one embodiment, the lead lever 10 and the lead screw sleeve 11 are threaded together to facilitate adjustment of the working position of the lead screw sleeve 11.

[0033] In one embodiment, a handwheel is mounted on the lower end of the lever 10.

[0034] Working principle:

[0035] When actually using the self-locking flange connection structure of the fireproof air duct, the operator manually moves the first flange 3 and the second flange 4 towards each other. When the upper and lower flange holes align, the operator then manually rotates the handwheel clockwise, which rotates the lead lever 10. Since the lead lever 10 and the lead screw sleeve 11 are threadedly engaged, the rotating lead lever 10 can push the lead screw sleeve 11. The lead screw sleeve 11 can move the multiple sets of insert rods 15 through the socket plate 12. When the multiple sets of insert rods 15 are inserted into the upper flange holes through the lower flange holes, the set of insert rods 15 on the same side can push the set of inclined blocks 20 on the same side to move. At this time, the inclined block 20 can be pressed by the connecting plate 19 on the same side to compress the two sets of springs 22 on the same side. When the inclined block 20 on the same side corresponds to the slot 21 on the same side, the two sets of springs 22 on the same side are subjected to their own elastic force, and by pushing the connecting plate 19 on the same side, the inclined block 20 on the same side can be moved into the slot 21 on the same side. The use of the other plug rods 15 is the same as the operation. At this time, the connection of the first flange 3 and the second flange 4 is completed. When it is necessary to separate the first flange 3 and the second flange 4, the operator can manually pull the multiple handles 23, which can be used to move the multiple connecting plates 19 on the same side through the two sets of crossbars 18 on the same side. 9. Movement: When the multiple sets of inclined blocks 20 move out of the multiple sets of slots 21, the handwheel can be rotated counterclockwise. At this time, the multiple sets of insertion rods 15 will gradually move out of the upper and lower sets of flange holes, and then the first flange 3 and the second flange 4 can be separated. During the movement of the socket plate 12, the multiple sets of balls 14 will roll along the inner wall of the socket cover 7. The socket cover 7 facilitates the disassembly and assembly of the two flange structures, bringing convenience to the disassembly and assembly of the self-locking flange connection structure of the fireproof air duct. At the same time, according to the above operation, after the first flange 3 and the second flange 4 are connected, the operator can rotate the handwheel counterclockwise by hand. Turning the two sets of adjusting screws 9 will gradually move the two sets of mounting boxes 8 out of the house. The first flange 3 and the second flange 4 can be moved with the help of the two sets of casters 24. When positioning is required, the two sets of adjusting screws 9 and the two sets of threaded pipes 25 are engaged with each other. The operator can rotate the two sets of threaded pipes 25 clockwise by hand. When the multiple sets of brake pads 26 contact the ground, the first flange 3 and the second flange 4 are stably fixed. The mounting box 8 and the adjusting screws 9 provide a support structure, which can facilitate the movement or stabilization of the two flange structures, and improve the practicality of the self-locking flange connection structure of the fireproof air duct.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking flange connection structure for fireproof air ducts, characterized in that, The system includes a first fireproof duct (1) and a second fireproof duct (2). A first flange (3) and a second flange (4) are respectively installed at the opposite ends of the first fireproof duct (1) and the second fireproof duct (2). Both the opposite surfaces of the first flange (3) and the second flange (4) are provided with annular grooves (5), and sealing gaskets (6) are provided inside the two sets of annular grooves (5). Multiple sets of flange holes are opened on the opposite surfaces of the first flange (3) and the second flange (4). A sleeve cover (7) is fixedly fitted onto the side wall of the second fireproof duct (2). Two sets of mounting boxes (8) are installed on the side wall of the sleeve cover (7). A screw lever (10) is installed inside the sleeve cover (7) via a bearing. A screw rod sleeve (11) is fitted onto the side wall of the screw lever (10), and a socket plate (12) is fixedly fitted onto the side wall of the screw rod sleeve (11). The side wall of the socket plate (12) is provided with... The device has multiple sets of ball sockets (13), and each set of ball sockets (13) is equipped with a ball (14). The upper part of the socket plate (12) is equipped with multiple sets of insert rods (15). One end of each set of insert rods (15) slides through multiple sets of flange holes. The inner wall of each set of flange holes is provided with a threaded through hole (16), and a threaded plug (17) is inserted into each set of threaded through holes (16). One end of each set of threaded plugs (17) slides through two sets of crossbars (18). One end of each set of crossbars (18) on the same side is equipped with a connecting plate (19). The opposing surfaces of each set of connecting plates (19) are equipped with inclined blocks (20). The other end of each set of crossbars (18) on the same side is equipped with a handle (23). The side walls of each set of crossbars (18) on the same side are fitted with springs (22). The side walls of each set of insert rods (15) are provided with slots (21).

2. The self-locking flange connection structure for fireproof air ducts according to claim 1, characterized in that, Both sets of mounting boxes (8) have an adjusting screw (9) threaded through their lower parts. Both sets of adjusting screws (9) have casters (24) installed at their lower ends. Both sets of adjusting screws (9) have threaded tubes (25) sleeved on their side walls. Both sets of threaded tubes (25) have multiple sets of brake pads (26) installed at their lower ends.

3. The self-locking flange connection structure for fireproof air ducts according to claim 2, characterized in that, The two sets of adjusting screws (9) and the two sets of threaded tubes (25) are threaded together.

4. The self-locking flange connection structure for fireproof air ducts according to claim 1, characterized in that, The diameter of the opening of the multiple sets of ball sockets (13) is smaller than the diameter of the multiple sets of balls (14).

5. The self-locking flange connection structure for fireproof air ducts according to claim 1, characterized in that, The multiple sets of threaded through holes (16) and the multiple sets of threaded plugs (17) are threaded together.

6. The self-locking flange connection structure for fireproof air ducts according to claim 1, characterized in that, The screw lever (10) and the screw sleeve (11) are threadedly engaged.

7. The self-locking flange connection structure for fireproof air ducts according to claim 1, characterized in that, A handwheel is installed at the lower end of the wire lever (10).

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