Flexible composite air pipe zipper connection sealing device

Abstract

The flexible composite air pipe zipper connection sealing device comprises an outer cover body, an inner cover body and a limiting mechanism, and a through hole is formed in the outer cover body; the inner cover body and the outer cover body are oppositely arranged; the limiting mechanism comprises a connecting rod and a limiting piece, and one end of the connecting rod movably penetrates through the through hole and is connected to the inner cover body; the limiting piece is located on the connecting rod and used for abutting against the outer cover body so that the outer cover body and the inner cover body can be clamped. According to the application, the problems of high difficulty, low efficiency and uncontrollable quality in the pore sealing and on-site coating construction of zipper connection starting and ending points in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flexible air pipe heat preservation, in particular to a flexible composite air pipe zipper connection sealing device. BACKGROUND

[0002] The existing flexible composite air pipe is produced by factory standardization, and the pipe connection and connection construction are performed by the zipper connection method at the engineering construction site. As a central air conditioning ventilation pipe, the sealing property of the air pipe will greatly affect the air supply / return effect and energy consumption of the central air conditioning system.

[0003] The air leakage points of the flexible composite air pipe mainly include three aspects, one is the needle eye air leakage, the other is the zipper tooth and code belt gap air leakage, and the third is the zipper connection start and end point aperture air leakage.

[0004] At present, there are relatively mature sealing methods for the needle eye, zipper tooth and code belt gap air leakage, but it is difficult to handle the zipper connection start and end point aperture air leakage. Since the zipper connection is completed at the construction site, the most commonly used sealing method is to coat sealant at the zipper connection start and end point aperture at the engineering construction site, so as to completely block the zipper connection start and end point aperture.

[0005] Although this technology can seal the zipper connection start and end point aperture, there are still some problems, for example, the on-site coating of sealant has great construction difficulty, low efficiency and uncontrollable quality; the on-site coating sealing operation is not standardized, which affects the customer experience; and the air pipe cannot be disassembled after being coated and sealed, which makes the later maintenance difficult. SUMMARY

[0006] Embodiments of the present application provide a flexible composite air pipe zipper connection sealing device to solve the problems of great difficulty, low efficiency and uncontrollable quality of on-site coating for sealing the zipper connection start and end point aperture in the related art.

[0007] In a first aspect, a flexible composite air pipe zipper connection sealing device is provided, which includes:

[0008] An outer cover body, a through hole is formed in the outer cover body;

[0009] An inner cover body is arranged opposite to the outer cover body;

[0010] A limiting mechanism includes a connecting rod and a limiting piece, one end of the connecting rod passes through the through hole and is connected to the inner cover body; the limiting piece is located on the connecting rod and is used for abutting against the outer cover body, so that the outer cover body and the inner cover body are clamped.

[0011] In some embodiments, the connecting rod is screwed to the inner cover body;

[0012] The limiting member is fixed on the connecting rod.

[0013] In some embodiments, the inner cap is provided with an internally threaded hole, the connecting rod is provided with an externally threaded surface, and the connecting rod is screwed into the internally threaded hole through the externally threaded surface.

[0014] In some embodiments, the inner cap is provided with a threaded column, and the connecting rod is screwed with the threaded column.

[0015] In some embodiments, the threaded column is provided with an internally threaded hole, the connecting rod is provided with an externally threaded surface, and the connecting rod is screwed into the internally threaded hole through the externally threaded surface.

[0016] Alternatively, the threaded column is provided with an externally threaded surface, the connecting rod is provided with an internally threaded hole, and the threaded column is screwed into the internally threaded hole through the externally threaded surface.

[0017] In some embodiments, the connecting rod is fixed on the inner cap.

[0018] The limiting member is screwed on the connecting rod.

[0019] In some embodiments, the limiting member is provided in multiple, and is installed on the connecting rod in a length direction of the connecting rod at intervals.

[0020] The limiting member is an elastic snap button matched with an inner diameter of the through hole.

[0021] The limiting member is configured to pass through the through hole under the action of a pressing force or a pulling force greater than a designed external force.

[0022] In some embodiments, the outer cap and / or the inner cap is provided with a sealing member.

[0023] In some embodiments, the outer cap and / or the inner cap is in a shape of a circle, a semicircle, a rectangle, or a bowl.

[0024] In some embodiments, the outer cap and / or the inner cap is made of plastic or metal.

[0025] In some embodiments, the outer cap and / or the inner cap is provided with a reinforcing rib.

[0026] The technical scheme provided in the application has the following beneficial effects:

[0027] The flexible composite air pipe zipper connection sealing device provided by the embodiment of the application is simple in construction and good in sealing effect, and the sealing quality is controllable by adjusting the force applied by the limiting piece to the abutting limiting of the outer cover body.

[0028] The application can be operated reversely, the abutting limiting of the limiting piece to the outer cover body is released, the outer cover body and the inner cover body are away from each other, the sealing device is removed, the air pipe is detachable, the later maintenance is convenient, and the sealing device can be repeatedly used. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The flexible composite air pipe zipper connection sealing device provided by the embodiment of the application is simple in construction and good in sealing effect, and the sealing quality is controllable by adjusting the force applied by the limiting piece to the abutting limiting of the outer cover body.

[0031] Figure 2 The flexible composite air pipe zipper connection sealing device provided by the embodiment of the application is simple in construction and good in sealing effect, and the sealing quality is controllable by adjusting the force applied by the limiting piece to the abutting limiting of the outer cover body.

[0032] In the drawings: 1, outer cover body; 11, through hole; 2, inner cover body; 21, threaded column; 3, connecting rod; 4, limiting piece; 5, sealing piece; 6, reinforcing rib. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0034] Referring to Figure 1As shown, the embodiment of the present application provides a flexible composite air pipe zipper connection sealing device, which comprises an outer cover body 1, an inner cover body 2 and a limiting mechanism, the outer cover body 1 and the inner cover body 2 are oppositely arranged, a through hole 11 is formed in the center position of the outer cover body 1, the limiting mechanism comprises a connecting rod 3 and a limiting piece 4, wherein one end of the connecting rod 3 is movably penetrated through the through hole 11 and connected to the center position of the inner cover body 2, and the outer cover body 1 can be adjusted in position on the connecting rod 3; the limiting piece 4 is located on the connecting rod 3 and used for abutting against the outer cover body 1, so that the outer cover body 1 and the inner cover body 2 are clamped, and the sealing between the outer cover body 1 and the inner cover body 2 is realized through the abutment of the limiting piece 4.

[0035] The sealing device provided by the embodiment is used, the inner cover body 2 is placed on the inner side of the flexible composite air pipe zipper connection start-stop point aperture, the outer cover body 1 is placed on the outer side of the flexible composite air pipe zipper connection start-stop point aperture, and the connecting rod 3 penetrates the flexible composite air pipe zipper connection start-stop point aperture, the outer cover body 1 is limited by the abutment of the limiting piece 4, the outer cover body 1 and the inner cover body 2 clamp the flexible composite air pipe from the two sides of the zipper connection start-stop point aperture inside and outside the air pipe, the edge of the cover body is ensured not to leak air, the zipper connection start-stop point aperture is completely blocked, and the high-pressure airflow in the flexible composite air pipe is prevented from flowing out through the zipper connection start-stop point aperture.

[0036] Compared with the existing scheme of coating sealing glue, the outer cover body 1 is limited by the abutment of the limiting piece, the outer cover body 1 and the inner cover body 2 are clamped and sealed, the construction is simple, the sealing effect is good, the size of the force applied to the abutment and limitation of the outer cover body 1 by the limiting piece 4 is adjusted, and the sealing quality is controllable.

[0037] It can be understood that the outer cover body 1 and the inner cover body 2 provided by the present application can completely cover the zipper connection start-stop point aperture and form effective blocking of the zipper connection start-stop point aperture.

[0038] In order to realize the abutment and limitation of the outer cover body 1 by the limiting piece 4 and realize the clamping and sealing between the outer cover body 1 and the inner cover body 2, the present application provides a plurality of feasible schemes, for example, as follows:

[0039] (1) The present application can indirectly drive the outer cover body 1 to move along the length direction of the connecting rod 3 by external force, so as to adjust the distance between the outer cover body 1 and the inner cover body 2, and then make the outer cover body 1 and the inner cover body 2 approach each other until clamping and sealing or move away from each other until separation.

[0040] (1-1)The connecting rod 3 is screwed on the inner cover 2, and the limiting piece 4 is fixed on the connecting rod 3, so that the limiting mechanism is like a screw or a bolt, the limiting piece 4 forms the head of the screw or the bolt, and the connecting rod 3 forms the screw rod of the screw or the bolt.

[0041] As shown in Figure 1 , by screwing the limiting piece 4, the connecting rod 3 can continuously enter the inner cover 2, the distance between the limiting piece 4 and the inner cover 2 is adjusted by screwing, so that the distance between the outer cover 1 and the inner cover 2 can be adjusted, and finally the outer cover 1 and the inner cover 2 are clamped and sealed or separated from each other.

[0042] As an example, the inner cover 2 is provided with an inner threaded hole, the outer surface of the connecting rod 3 is provided with an outer thread, and the connecting rod 3 is screwed into the inner threaded hole through the outer thread. Generally, the inner cover 2 is relatively thin, so the inner threaded hole can be designed to pass through the inner cover 2, so that the connecting rod 3 can be rotated to pass through the inner cover 2.

[0043] As another example, referring to Figure 1 , the inner cover 2 is provided with a threaded column 21, and the connecting rod 3 is screwed with the threaded column 21. By providing the threaded column 21, the connection strength between the connecting rod 3 and the inner cover 2 can be enhanced.

[0044] For example, the threaded column 21 is provided with an inner threaded hole, the depth of the inner threaded hole can be determined according to actual needs, the outer surface of the connecting rod 3 is provided with an outer thread, and the connecting rod 3 is screwed into the inner threaded hole through the outer thread. By screwing the limiting piece 4, the connecting rod 3 can be screwed into the inner threaded hole, and the greater the number of screwing, the greater the depth of the connecting rod 3 into the inner threaded hole, thereby abutting against the outer cover 1, so that the distance between the outer cover 1 and the inner cover 2 is smaller, and the distance adjustment is realized. It can be understood that if the air pipe is to be disassembled, the limiting piece 4 can be screwed in the opposite direction. In addition, the inner threaded hole can be a blind hole and not pass through the inner cover 2, or the inner threaded hole passes through the inner cover 2.

[0045] For another example, the outer surface of the threaded column 21 is provided with an outer thread, and the connecting rod 3 is provided with an inner threaded hole. The threaded column 21 is screwed into the inner threaded hole through the outer thread. The difference between this embodiment and the foregoing scheme is that the positions of the outer thread and the inner threaded hole are interchanged, and the principle is similar, which will not be described here.

[0046] (1-2)The connecting rod 3 is fixed on the inner cover 2, and the limiting piece 4 is screwed on the connecting rod 3, so that the limiting mechanism is like a screw rod + nut combination, the limiting piece 4 forms the nut, and the connecting rod 3 forms the screw rod.

[0047] Specifically, the aperture of the through hole 11 is larger than the outer diameter of the connecting rod 3, and specifically, the aperture of the through hole 11 is slightly larger than the outer diameter of the connecting rod 3, which ensures that the outer cover body 1 can move along the axial direction of the connecting rod 3; the outer surface of the connecting rod 3 is provided with external threads, and the limiting piece 4 is screwed on the external threads of the connecting rod 3.

[0048] In the present example, the limiting piece 4 functions as a nut, and by screwing the limiting piece 4, the outer cover body 1 is driven to move along the axial direction of the connecting rod 3, thereby adjusting the distance between the outer cover body 1 and the inner cover body 2. It can be understood that if the air pipe is to be disassembled, the limiting piece 4 can be screwed in the opposite direction, and then the outer cover body 1 is pushed outward to release the clamping of the air pipe.

[0049] (2) The present application can directly drive the outer cover body 1 to move along the length direction of the connecting rod 3 by external force, so as to adjust the distance between the outer cover body 1 and the inner cover body 2, and then make the outer cover body 1 and the inner cover body 2 approach each other until clamping and sealing, or move away from each other until separation.

[0050] As an example, referring to Figure 2 As shown, the limiting piece 4 is provided in plurality and is installed on the connecting rod 3 at intervals along the length direction of the connecting rod 3; the limiting piece 4 adopts an elastic snap buckle which is matched with the inner diameter of the through hole 11, and the elastic snap buckle is circular in a plane perpendicular to the axial direction of the connecting rod 3; the limiting piece 4 is configured to pass through the through hole 11 under the action of a pressing force or a pulling force which is greater than a designed external force.

[0051] In the present example, the limiting piece 4 cooperates with the outer cover body 1 having the through hole 11 to form a snap buckle structure, and the snap buckle structure realizes the buckling or separation between the limiting piece 4 and the outer cover body 1 through pressing or pulling.

[0052] Specifically, the size of the designed external force for driving the limiting piece 4 to pass through the through hole 11 can be designed in advance, and by applying a pressing force, the outer cover body 1 is driven to move towards the inner cover body 2; when the applied pressing force is greater than the designed external force, the outer cover body 1 will pass through one limiting piece 4 downwards to move one step towards the inner cover body 2, and continuous pressing downwards until the outer cover body 1 is clamped and buckled on the inner cover body 2, at this time, the last limiting piece 4 through which the outer cover body 1 passes will limit the outer cover body 1 to keep the outer cover body 1 and the inner cover body 2 clamped and sealed; when disassembly is needed, a pulling force greater than the designed external force is applied, and the operation is reversed, so as to realize the separation of the outer cover body 1 and the inner cover body 2 and release the clamping of the air pipe.

[0053] It can be seen that the application can also be operated in reverse to remove the abutting and limiting of the outer cover body by the limiting member, so as to make the outer cover body 1 and the inner cover body 2 move away from each other, and then remove the sealing device, so that the air pipe can be detached, the later maintenance is convenient, and the sealing device can be reused.

[0054] In order to further improve the sealing effect and realize complete plugging of the aperture at the start and stop point of the zipper connection, prevent the high-pressure gas flow in the pipe from flowing out through the aperture at the start and stop point of the zipper connection, the outer cover body 1 and / or the inner cover body 2 is provided with a sealing member 5. The sealing member 5 can strengthen the sealing effect.

[0055] The material of the sealing member 5 is silica gel or rubber, or other existing flexible sealing materials.

[0056] Further, the outer cover body 1 and / or the inner cover body 2 is in the shape of a circle, a semicircle, a rectangle or a bowl.

[0057] For example, the outer cover body 1 and the inner cover body 2 are in the shape of a circular plate structure. At this time, the sealing member 5 can be arranged on the body structure, and the sealing member 5 is also in the shape of a plate structure, so that the sealing between the plate structures can be realized, and the high-pressure gas flow in the pipe is prevented from flowing out through the aperture at the start and stop point of the zipper connection.

[0058] For example, as a preferred example, the outer cover body 1 and the inner cover body 2 are in the shape of a bowl structure as shown in Figure 1 The sealing ring is arranged on the four peripheral edges of the bowl structure to strengthen the sealing effect.

[0059] Compared with the plate structure, the bowl structure has the advantages that the contact surface of the bowl structure is small when the same pressure is applied between the outer cover body 1 and the inner cover body 2, the pressure is large, the sealing effect is better, and the sealing ring can be used only on the four peripheral edges, the amount of the sealing member 5 is reduced, and the cost is reduced.

[0060] In order to improve the strength of the sealing device and prolong the service life, referring to Figure 1 The outer cover body 1 and / or the inner cover body 2 is provided with a reinforcing rib 6; the reinforcing rib 6 is arranged in a radial manner.

[0061] The material of the outer cover body 1 and / or the inner cover body 2 is plastic or metal, or other commonly used rigid materials.

[0062] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] It should be noted that in the present application, relational terms such as "first" and "second", and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or other elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0064] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A flexible composite duct zipper connection sealing device, characterized by, The utility model relates to a flexible composite air pipe zipper connecting sealing device, which comprises: an outer cover (1) with a through hole (11) formed thereon; an inner cover (2) arranged opposite to the outer cover (1); a limiting mechanism comprising a connecting rod (3) and a limiting piece (4), one end of the connecting rod (3) being movably penetrated through the through hole (11) and connected to the inner cover (2), and the limiting piece (4) being located on the connecting rod (3) and used for abutting against the outer cover (1) to clamp the outer cover (1) and the inner cover (2).

2. The flexible composite air pipe zipper connecting sealing device according to claim 1, wherein: the connecting rod (3) is screwed to the inner cover (2); and the limiting piece (4) is fixed to the connecting rod (3).

3. The flexible composite air pipe zipper connecting sealing device according to claim 2, wherein: the inner cover (2) is provided with an inner threaded hole, the outer surface of the connecting rod (3) is provided with an outer thread, and the connecting rod (3) is screwed into the inner threaded hole through the outer thread.

4. The flexible composite air pipe zipper connecting sealing device according to claim 2, wherein: the inner cover (2) is provided with a threaded column (21), and the connecting rod (3) is screwed with the threaded column (21).

5. The flexible composite air pipe zipper connecting sealing device according to claim 4, wherein: the threaded column (21) is provided with an inner threaded hole, the outer surface of the connecting rod (3) is provided with an outer thread, and the connecting rod (3) is screwed into the inner threaded hole through the outer thread; or the outer surface of the threaded column (21) is provided with an outer thread, the connecting rod (3) is provided with an inner threaded hole, and the threaded column (21) is screwed into the inner threaded hole through the outer thread.

6. The flexible composite air pipe zipper connecting sealing device according to claim 1, wherein: the connecting rod (3) is fixed to the inner cover (2); and the limiting piece (4) is screwed to the connecting rod (3).

7. The flexible composite air pipe zipper connecting sealing device according to claim 1, wherein: the limiting piece (4) is provided in plurality and is installed on the connecting rod (3) at intervals along the length direction of the connecting rod (3); the limiting piece (4) is an elastic snap button matched with the inner diameter of the through hole (11); the limiting piece (4) is configured to pass through the through hole (11) under the action of a pressing force or a pulling force greater than a designed external force. the outer cover (1) and / or the inner cover (2) is provided with a sealing piece (5).

8. The flexible composite air duct zipper connection and seal apparatus as described in claim 1, wherein:

9. The flexible composite air pipe zipper connecting sealing device according to claim 1, wherein: the outer cover (1) and / or the inner cover (2) is in the shape of a circle, a semicircle, a rectangle or a bowl; and / or the outer cover (1) and / or the inner cover (2) is made of plastic or metal. the outer cover (1) and / or the inner cover (2) is provided with a reinforcing rib (6).

10. The flexible composite air duct zipper connection and seal apparatus as described in claim 1, wherein: ​

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