High-sealing blade on fireproof smoke exhaust valve

Abstract

The utility model discloses a high-sealing blade on a fireproof smoke exhaust valve, which belongs to the technical field of fireproof smoke exhaust valves and comprises a blade main body, a middle groove is arranged in the middle of the blade main body, and the middle groove is used for being welded on the outer sides of two rotating shafts arranged on the inner side of a frame of the fireproof smoke exhaust valve. The inner wall of the middle groove is provided with two clamping type shaft installing pieces which are symmetrically distributed. The clamping type shaft mounting piece is used for quickly realizing mounting and fixing between the clamping type shaft mounting piece and the rotating shaft; according to the high-sealing blade on the fireproof smoke exhaust valve, when the high-sealing blade on the fireproof smoke exhaust valve is used, especially when the blade main body is mounted on the outer sides of two rotating shafts, the two first bending parts respectively arranged on the two pre-positioning plates in the groove in the middle of the blade main body can be aligned with the corresponding rotating shafts, and the two first bending parts can be extruded by the outer sides of the rotating shafts; and therefore, the pre-positioning plate is deformed through the two first weakening grooves until the pre-positioning plate is arranged on the outer side of the rotating shaft in a sleeving manner.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fire prevention smoke exhaust valve technical field, concretely relates to a high sealing blade on fire prevention smoke exhaust valve. BACKGROUND

[0002] Fire prevention smoke exhaust valve is a kind of equipment specially used in fire fighting system, mainly used to effectively exhaust smoke and heat when fire occurs, prevent smoke from spreading in building, protect personnel escape and reduce the loss caused by fire.

[0003] At present, the high sealing blade installed in the outer frame of fire prevention smoke exhaust valve is generally made of stainless steel or aluminum alloy material, with high sealing, long service life and other characteristics, but the high sealing blade is generally welded or fixed by screw on the two rotating shafts of the mechanical rotating structure of the outer frame of fire prevention smoke exhaust valve, which makes the disassembly of high sealing blade very inconvenient, therefore, a high sealing blade on fire prevention smoke exhaust valve is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a high sealing blade on fire prevention smoke exhaust valve to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high sealing blade on fire prevention smoke exhaust valve, including blade main body, the middle part of blade main body is equipped with middle part groove, middle part groove is used for welding the two rotating shafts outside equipped in the inner side of fire prevention smoke exhaust valve frame, the inner wall of middle part groove is provided with the two clamping type shaft fittings of symmetrical distribution;The clamping type shaft fitting is used for quickly realizing the installation and fixation between rotating shaft.

[0006] As a preferred implementation, the clamping type shaft fitting includes a pre-positioning plate fixed in the middle part groove, the cross section of the pre-positioning plate is C-shaped structure, and the two ends of the pre-positioning plate are provided with first curved portions.

[0007] As a preferred implementation, the inner wall of the pre-positioning plate is provided with the two first weakening grooves of symmetrical distribution.

[0008] As a preferred implementation, a plurality of first lightening grooves are formed in the pre-positioning plate, and the inner wall of the pre-positioning plate is concave-convex structure.

[0009] As a preferred implementation, a buckling plate is fixed to the position away from the two first curved portions at the top end of the pre-positioning plate, the vertical section of the buckling plate is inverted L-shaped structure, the front end of the buckling plate is provided with a second curved portion, a buckle is fixed to the bottom end of the buckling plate below the second curved portion, a second lightening groove is formed in the buckling plate, and a second weakening groove is formed in the inner corner away from the second curved portion of the buckling plate.

[0010] As a preferred embodiment, the cross section of the buckle block is in an arc shape structure, the front end of the buckle block is provided with an inclined surface, and the rear end of the buckle block is provided with an arc-shaped matching surface matched with the outer peripheral wall of the rotating shaft, and the surface of the arc-shaped matching surface is in a concave-convex structure.

[0011] Compared with the prior art, the high-sealing blade on the fireproof smoke exhaust valve has at least the following beneficial effects:

[0012] In the utility model, when the high-sealing blade on the fireproof smoke exhaust valve is used, especially when the blade main body is installed on the outer sides of the two rotating shafts, the two first curved portions respectively arranged on the two predetermined positioning plates in the middle groove of the blade main body are aligned with the corresponding rotating shafts, then the two first curved portions are extruded by the outer sides of the rotating shafts, so that the predetermined positioning plates are deformed through the two first weakened grooves, and the predetermined positioning plates are sleeved on the outer sides of the rotating shafts, in addition, the opposite ends of the two rotating shafts press the inclined surfaces arranged on the front ends of the buckle blocks respectively, so that the buckle blocks drive the buckling plates to deform through the second weakened grooves, and the arc-shaped matching surfaces are attached to the outer sides of the rotating shafts, the concave-convex design of the inner side surface of the predetermined positioning plate and the arc-shaped matching surface makes the blade main body be quickly and stably fixed on the outer sides of the two rotating shafts, so that the high-sealing blade is quickly disassembled on the fireproof smoke exhaust valve, and the assembly efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a three-dimensional structure schematic view of each component in the first view angle of the clamping type shaft mounting piece of the utility model;

[0015] Figure 3 It is a three-dimensional structure schematic view of each component in the second view angle of the clamping type shaft mounting piece of the utility model;

[0016] Figure 4 It is an expanded structure schematic view of each component on the buckle block of the utility model.

[0017] In the drawing: 1, blade main body; 2, middle groove; 3, clamping type shaft mounting piece; 31, predetermined positioning plate; 32, first curved portion; 33, first weakened groove; 34, first lightened groove; 35, buckling plate; 36, second curved portion; 37, buckle block; 371, inclined surface; 372, arc-shaped matching surface; 38, second weakened groove; 39, second lightened groove. PREFERRED EMBODIMENT

[0018] The utility model is further described below in combination with examples.

[0019] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme of the utility model embodiment will be described clearly and completely below in combination with the drawings of the utility model embodiment. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] The following embodiments are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Simple improvements of the method of the utility model under the concept of the utility model also belong to the scope of protection of the utility model.

[0021] Embodiment

[0022] At present, the high sealing blade installed in the outer frame of the fireproof smoke exhaust valve is generally made of stainless steel or aluminum alloy material, which has the characteristics of high sealing and long service life. However, the high sealing blade is generally welded or fixed by screws on the two rotating shafts of the mechanical rotating structure of the fireproof smoke exhaust valve outer frame, which makes the disassembly and assembly of the high sealing blade very inconvenient.

[0023] Therefore, referring to Figures 1-4 , the utility model provides a high sealing blade on a fireproof smoke exhaust valve, which comprises: a blade body 1, a middle part of the blade body 1 is provided with a middle groove 2, the middle groove 2 is used for being welded outside two rotating shafts arranged on the inner side of the fireproof smoke exhaust valve frame, and the inner wall of the middle groove 2 is provided with two clamping type shaft mounting pieces 3 which are symmetrically distributed; the clamping type shaft mounting piece 3 is used for quickly realizing the installation and fixation between the rotating shaft.

[0024] Further as Figures 1-4 indicated, it is worth noting that in order to quickly realize the pre-installation of the blade body 1 on the two rotating shafts, the clamping type shaft mounting piece 3 is arranged in the middle groove 2, including a pre-positioning plate 31 fixedly connected in the middle groove 2, the cross section of the pre-positioning plate 31 is in C-shaped structure, the two ends of the pre-positioning plate 31 are provided with first bending parts 32, the inner wall of the pre-positioning plate 31 is provided with two first weakening grooves 33 which are symmetrically distributed, a plurality of first lightening grooves 34 are arranged on the pre-positioning plate 31, and the inner wall of the pre-positioning plate 31 is in uneven structure.

[0025] Among them, the first weakening groove 33 is arranged so that the rotating shaft can extrude the two first bending parts 32 when being installed, so that the pre-positioning plate 31 is deformed, and the pre-positioning plate 31 is sleeved and installed on the outer side of the rotating shaft. In combination with the design of the uneven structure, the stability of the pre-positioning plate 31 installed on the rotating shaft is better, and the design of the first lightening groove 34 makes the whole structure lighter in weight.

[0026] Further as Figures 1-4 illustrated, it is worth noting that in order to further improve the stability of the installation on the shaft, therefore set the top end away from the two first curved portion 32 position of the pre-positioning plate 31 is fixed with the buckle plate 35, the vertical section of the buckle plate 35 is inverted L-shaped structure, the front end of the buckle plate 35 is provided with the second curved portion 36, the lower side of the second curved portion 36 is provided with the buckle block 37 fixed on the bottom end of the buckle plate 35, the buckle plate 35 is provided with the second light weight groove 39, the inner side corner of the buckle plate 35 away from the second curved portion 36 is provided with the second weakening groove 38, the cross section of the buckle block 37 is arc-shaped structure, the front end of the buckle block 37 is provided with the inclined surface 371, the rear end of the buckle block 37 is provided with the arc-shaped matching surface 372 matched with the outer peripheral wall of the shaft, the surface of the arc-shaped matching surface 372 is uneven structure.

[0027] Among them, the design of the second light weight groove 39 is also to make the whole structure lighter, the design of the inclined surface 371, the relative end of the two shafts will extrude the inclined surface 371, and the buckle plate 35 will be deformed and expanded through the second weakening groove 38, and the arc-shaped matching surface 372 will be buckled on the outside of the shaft.

[0028] In summary: when using the high sealing blade of the fire smoke exhaust valve, especially when installing the blade body 1 on the outside of the two shafts, the two first curved portions 32 respectively arranged on the two pre-positioning plates 31 in the middle groove 2 of the blade body 1 can be aligned with the corresponding shafts, then the two first curved portions 32 will be extruded by the outside of the shaft, so that the pre-positioning plate 31 will be deformed through the two first weakening grooves 33, and the pre-positioning plate 31 will be sleeved on the outside of the shaft, in addition, the opposite ends of the two shafts will respectively press the inclined surface 371 arranged on the front end of the buckle block 37, so that the buckle block 37 drives the buckle plate 35 to deform through the second weakening groove 38, until the arc-shaped matching surface 372 is attached to the outside of the shaft, combined with the uneven design of the inner side surface of the pre-positioning plate 31 and the uneven design of the arc-shaped matching surface 372, the blade body 1 can be quickly and stably fixed on the outside of the two shafts, so as to achieve the purpose of quickly disassembling the high sealing blade on the fire smoke exhaust valve, greatly improving the assembly efficiency.

[0029] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "comprising" or "including" or similar words used in the present application mean that the elements or objects listed after the word encompass the elements or objects listed after the word and equivalents thereof, and do not exclude other elements or objects. The terms "connected" or "linked" or similar words are not limited to physical or mechanical connection, and can also include electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0030] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high sealing blade for a fireproof smoke exhaust valve, comprising a blade body (1), a middle groove (2) provided in the middle of the blade body (1), the middle groove (2) being used for welding to the outer sides of two rotating shafts provided on the inner side of the fireproof smoke exhaust valve frame, characterized in that: The inner wall of the middle groove (2) is provided with two symmetrically distributed clamping shaft mounting members (3); The clamping type shaft mounting member (3) is used for quickly achieving installation and fixation with the rotating shaft.

2. The high sealing blade on a fireproof smoke exhaust damper according to claim 1, characterized in that: The clamping shaft mounting member (3) comprises a pre-positioning plate (31) fixed in the middle groove (2); the cross section of the pre-positioning plate (31) is a C-shaped structure; both ends of the pre-positioning plate (31) are provided with a first bent portion (32).

3. The high sealing blade on a fireproof smoke exhaust damper according to claim 2, characterized in that: The inner wall of the pre-positioning plate (31) is provided with two symmetrically distributed first weakening grooves (33).

4. The high sealing blade on a fireproof smoke exhaust damper according to claim 2, characterized in that: The pre-positioning plate (31) is provided with a plurality of first lightweight grooves (34), and the inner wall of the pre-positioning plate (31) has an uneven structure.

5. The high sealing blade on a fireproof smoke exhaust damper according to claim 2, characterized in that: A fastening plate (35) is fixedly connected to the top of the pre-positioning plate (31) at a position away from the two first bent portions (32); the vertical section of the fastening plate (35) is an inverted L-shaped structure; a second bent portion (36) is provided at the front end of the fastening plate (35); a buckle block (37) fixed to the bottom end of the fastening plate (35) is provided below the second bent portion (36); a second lightweight groove (39) is provided on the fastening plate (35); and a second weakening groove (38) is provided on the inner corner of the fastening plate (35) away from the second bent portion (36).

6. The high sealing blade on a fireproof smoke exhaust damper according to claim 5, characterized in that: The cross section of the buckle block (37) is an arc-shaped structure. The front end of the buckle block (37) is provided with an inclined surface (371). The rear end of the buckle block (37) is provided with an arc-shaped matching surface (372) that matches the outer peripheral wall of the rotating shaft. The surface of the arc-shaped matching surface (372) is an uneven structure.

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