Quick splicing device for ventilating duct

Abstract

The utility model relates to a quick splicing device for ventilating ducts, and belongs to the technical field of ventilating ducts, the quick splicing device comprises a connecting framework, two ends of the connecting framework are communicated and are respectively used for being inserted into to-be-spliced ventilating ducts on two sides; the blocking ribs are arranged on the outer side of the connecting framework and used for blocking the to-be-spliced ventilation pipes on the two sides; the first mounting groove is formed in the connecting framework and located on one side of the blocking rib; the second mounting groove is formed in the connecting framework and located on the other side of the blocking rib; the first sealing ring is arranged in the first mounting groove; and the second sealing ring is arranged in the second mounting groove. The structure is simple, during use, the ventilation pipes to be spliced are only needed to be connected with the two ends of the connecting framework in an inserted mode, rapid splicing can be completed, after splicing, connection at the joints is tight, and the surface is simple and attractive.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ventilation ducts, in particular to a ventilation duct rapid splicing device. BACKGROUND

[0002] Ventilation ducts are metal or non-metal ducts used in ventilation and air conditioning engineering of industrial and civil buildings, and are a kind of municipal infrastructure for air circulation and reducing harmful gas concentration. Due to different purposes and use environments of ventilation ducts, the splicing requirements of ventilation ducts are also different.

[0003] There are various splicing methods for ventilation ducts on the market, such as flange connection, hoop connection, etc. Each method has some problems, and the most important problems are: 1. Complex assembly, low installation (splicing) efficiency; 2. Poor air tightness; 3. Poor versatility; 4. Unsightly splicing.

[0004] Therefore, it is necessary to design a ventilation duct rapid splicing device to improve the above problems. CONTENT OF THE INVENTION

[0005] In order to simplify the assembly structure and improve the assembly efficiency, the present application provides a ventilation duct rapid splicing device.

[0006] The ventilation duct rapid splicing device provided by the present application adopts the following technical scheme:

[0007] A ventilation duct rapid splicing device comprises:

[0008] A connecting framework is provided, both ends of which are connected and used for inserting into two ventilation ducts to be spliced.

[0009] A blocking rib is arranged on the outer side of the connecting framework to block the two ventilation ducts to be spliced.

[0010] A first mounting groove is arranged on the connecting framework and located on one side of the blocking rib.

[0011] A second mounting groove is arranged on the connecting framework and located on the other side of the blocking rib.

[0012] A first sealing ring is arranged in the first mounting groove.

[0013] A second sealing ring is arranged in the second mounting groove.

[0014] Optionally, the first sealing ring is provided with a first limiting rib on the side away from the blocking rib and a second limiting rib on the side close to the blocking rib, and the first limiting rib and the second limiting rib form the first mounting groove.

[0015] Optionally, the second sealing ring is provided with a third limiting rib on the side close to the blocking rib and a fourth limiting rib on the side away from the blocking rib, and the second mounting groove is formed between the third limiting rib and the fourth limiting rib.

[0016] Optionally, the first limiting rib is provided with a first guide inclined surface on the side away from the blocking rib.

[0017] Optionally, the fourth limiting rib is provided with a second guide inclined surface on the side away from the blocking rib.

[0018] Optionally, the outer periphery of the first sealing ring is provided with a first elastic protruding rib, which is arranged in abutting contact with the inner wall of one of the ventilation pipes to be spliced.

[0019] The outer periphery of the second sealing ring is provided with a second elastic protruding rib, which is arranged in abutting contact with the inner wall of the other ventilation pipe to be spliced.

[0020] Optionally, the inner side of the connecting framework is provided with a support.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The present application realizes the communication of two ventilation pipes through the connecting framework. When in use, only the ventilation pipes to be spliced and the two ends of the connecting framework need to be inserted, and the rapid splicing can be completed. The surface of the interface after splicing is simple and beautiful. The first sealing ring and the second sealing ring are arranged to ensure the air tightness between the connecting framework and the ventilation pipes to be spliced on both sides, preventing leakage at the pipe connection. The blocking rib is arranged to prevent the connecting framework from moving longitudinally in the ventilation pipe and to ensure the stability of the splicing structure.

[0023] 2. The first guide inclined surface and the second guide inclined surface are arranged to facilitate the installation of the first sealing ring or the second sealing ring into the corresponding first mounting groove or second mounting groove from the two ends of the connecting framework, and to facilitate the interface docking with the corresponding ventilation pipe to be spliced, thereby improving the splicing efficiency.

[0024] 3. Since the stress is concentrated at the interface of the ventilation pipe, the support supports the connecting framework, which is conducive to improving the structural strength of the connecting framework and thereby ensuring the service life of the splicing device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the overall structure of a ventilation pipe rapid splicing device according to an embodiment of the present application.

[0026] Figure 2 is a schematic view of the structure after the ventilation pipe to be spliced is spliced according to an embodiment of the present application.

[0027] Figure 3 is an exploded view of the embodiment of the present application.

[0028] Figure 4 is a top view of Figure 3 .

[0029] Explanation of reference numerals: 1, connecting framework; 11, first limiting rib; 111, first guide inclined surface; 12, second limiting rib; 13, third limiting rib; 14, fourth limiting rib; 141, second guide inclined surface; 15, blocking rib; 16, support piece; 2, first mounting groove; 21, first sealing ring; 211, first elastic protruding rib; 3, second mounting groove; 31, second sealing ring; 311, second elastic protruding rib. DETAILED DESCRIPTION

[0030] The present application is further described below in conjunction with the accompanying Figures 1-4 , and specific embodiments.

[0031] Embodiment:

[0032] The embodiment of the present application discloses a ventilation pipeline rapid splicing device. Referring to Figures 1-2 , a ventilation pipeline rapid splicing device, comprising a connecting framework 1, both ends of the connecting framework 1 are conductive and are respectively used for being inserted into ventilation pipelines to be spliced on both sides, and a blocking rib 15 is integrally formed in the middle section of the outer periphery of the connecting framework 1, so as to block the ventilation pipelines to be spliced on both sides. In the embodiment, the connecting framework 1 is designed as a rectangular pipe or a circular pipe according to the common shape of the ventilation pipelines to be spliced; the blocking rib 15 can surround the outer periphery of the connecting framework 1 in a frame shape, or can be distributed in a strip shape on the outer periphery of the connecting framework 1 in an intermittent manner.

[0033] Referring to Figure 1 , a plurality of support pieces 16 are integrally formed on the inner side of the connecting framework 1. In the embodiment, the support pieces 16 are in a strip or plate structure. Since the stress is relatively concentrated at the interface of the ventilation pipeline, the support pieces 16 support the connecting framework 1, which is conducive to improving the structural strength of the connecting framework 1, and thus ensuring the service life of the splicing device.

[0034] Referring to Figure 1 and Figure 3 , in order to ensure the air tightness of the interface of the ventilation pipeline, the connecting framework 1 is provided with a first mounting groove 2 and a second mounting groove 3, the number of the first mounting groove 2 and the second mounting groove 3 can be one, two or more, and the first mounting groove 2 and the second mounting groove 3 are respectively located on both sides of the blocking rib 15, a first sealing ring 21 is mounted in the first mounting groove 2, and a second sealing ring 31 is mounted in the second mounting groove 3. In the embodiment, the first sealing ring 21 and the second sealing ring 31 are made of rubber.

[0035] When the splicing device is used, only the two ends of the ventilation pipe to be spliced are inserted into the connecting frame 1, and the quick splicing of the ventilation pipe is completed, and the interface after splicing is simple and beautiful. Through the setting of the first sealing ring 21 and the second sealing ring 31, the sealing between the connecting frame 1 and the two sides of the ventilation pipe to be spliced is ensured, and the leakage problem of the pipe connection is prevented; through the setting of the blocking rib 15, it is beneficial to avoid the longitudinal movement of the connecting frame 1 in the ventilation pipe, and ensure the stability of the splicing structure.

[0036] With reference to Figures 3-4 , the first sealing ring 21 is provided with a first limiting rib 11 away from the blocking rib 15, and a second limiting rib 12 close to the blocking rib 15, and a first installation groove 2 is formed between the first limiting rib 11 and the second limiting rib 12; the second sealing ring 31 is provided with a third limiting rib 13 close to the blocking rib 15, and a fourth limiting rib 14 away from the blocking rib 15, and a second installation groove 3 is formed between the third limiting rib 13 and the fourth limiting rib 14; the first limiting rib 11, the second limiting rib 12, the third limiting rib 13 and the fourth limiting rib 14 are integrally formed on the outer side of the connecting frame 1. In this embodiment, the first limiting rib 11, the second limiting rib 12, the third limiting rib 13 and the fourth limiting rib 14 can be frame-shaped around the outer periphery of the connecting frame 1, or can be intermittently arranged in strip shape on the outer periphery of the connecting frame 1.

[0037] It is worth noting that the overall size of the first limiting rib 11, the second limiting rib 12, the third limiting rib 13 and the fourth limiting rib 14 is set according to the specific specifications of the ventilation pipe, so that it can be inserted into the corresponding ventilation pipe to be spliced.

[0038] With reference to Figure 4 , the first limiting rib 11 is provided with a first guide inclined surface 111 away from the blocking rib 15; the fourth limiting rib 14 is provided with a second guide inclined surface 141 away from the blocking rib 15. Through the setting of the first guide inclined surface 111 and the second guide inclined surface 141, on the one hand, it is convenient to install the first sealing ring 21 or the second sealing ring 31 into the corresponding first installation groove 2 or second installation groove 3 from the two ends of the connecting frame 1, and on the other hand, it is convenient to interface with the corresponding ventilation pipe to be spliced, which is beneficial to improve the splicing efficiency.

[0039] With reference to Figures 3-4To further improve the sealing performance of the connection between the skeleton 1 and the two sides of the to-be-spliced ventilation pipe, and avoid leakage, the outer periphery of the first sealing ring 21 is integrally formed with a first elastic protrusion 211, which is arranged in abutting contact with the inner wall of one of the spliced ventilation pipes; the outer periphery of the second sealing ring 31 is integrally formed with a second elastic protrusion 311, which is arranged in abutting contact with the inner wall of the other to-be-spliced ventilation pipe. In this embodiment, the first elastic protrusion 211 and the second elastic protrusion 311 are both provided with two frame-shaped protrusions.

[0040] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A quick splicing device for ventilation ducts, characterized in that, The utility model relates to a ventilation pipe jointing structure, which comprises: a connecting frame (1) with both ends connected and used for being inserted into two ventilation pipes to be jointed; a blocking rib (15) arranged on the outer side of the connecting frame (1) and used for blocking the two ventilation pipes to be jointed; a first mounting groove (2) arranged on the connecting frame (1) and located on one side of the blocking rib (15); a second mounting groove (3) arranged on the connecting frame (1) and located on the other side of the blocking rib (15); a first sealing ring (21) arranged in the first mounting groove (2); a second sealing ring (31) arranged in the second mounting groove (3).

2. A quick splicing device for ventilation ducts according to claim 1, characterized in that: The first sealing ring (21) is provided with a first limiting rib (11) on the side away from the blocking rib (15) and a second limiting rib (12) on the side close to the blocking rib (15), and the first limiting rib (11) and the second limiting rib (12) form the first mounting groove (2).

3. A quick splicing device for ventilation ducts according to claim 1, characterized in that: The second sealing ring (31) is provided with a third limiting rib (13) on the side close to the blocking rib (15) and a fourth limiting rib (14) on the side away from the blocking rib (15), and the third limiting rib (13) and the fourth limiting rib (14) form the second mounting groove (3).

4. A quick splicing device for ventilation ducts according to claim 2, characterized in that: The first limiting rib (11) is provided with a first guide inclined surface (111) on the side away from the blocking rib (15).

5. A quick splicing device for ventilation ducts according to claim 3, characterized in that: The fourth limiting rib (14) is provided with a second guide inclined surface (141) on the side away from the blocking rib (15).

6. A quick splicing device for ventilation ducts according to claim 1, characterized in that: The first sealing ring (21) is provided with a first elastic convex rib (211) on the outer periphery, which is used for being abuttingly arranged against the inner wall of one of the ventilation pipes to be jointed. The second sealing ring (31) is provided with a second elastic convex rib (311) on the outer periphery, which is used for being abuttingly arranged against the inner wall of the other ventilation pipe to be jointed.

7. A quick splicing device for ventilation ducts according to claim 1, characterized in that: The inner side of the connecting frame (1) is provided with a supporting piece (16).

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