Ventilation pipeline connecting structure for electromechanical engineering

Abstract

The utility model discloses a ventilating duct connecting structure for electromechanical engineering, which comprises a first ventilating duct and a second ventilating duct, one end of the first ventilating duct is hermetically connected with a ventilating bulb tube, the outer cambered surface of the ventilating bulb tube is hermetically provided with a first limiting bulb tube and a second limiting bulb tube, and the outer cambered surface of the first limiting bulb tube is fixedly provided with a first connecting ring; sealing assemblies used for enhancing the connection sealing performance are arranged on the side faces of the first ventilation pipeline and the first connecting ring. The ventilation ball pipe is limited by the first limiting ball pipe and the second limiting ball pipe to communicate with the second ventilation pipeline, and the ventilation ball pipe is arranged in the first limiting ball pipe and the second limiting ball pipe in a sealed mode, so that the sealing connectivity of the first ventilation pipeline, the ventilation ball pipe and the second ventilation pipeline is improved; and by arranging an outer rubber sealing ring and an inner rubber sealing ring, the sealing connection performance of the first ventilation pipeline, the ventilation ball pipe and the second ventilation pipeline is further enhanced, and therefore the sealing performance is improved while operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation duct connection, in particular to a ventilation duct connection structure for electromechanical engineering. Background Art

[0002] Mechanical and electrical engineering is actually a general term for the two majors of mechanical and electrical engineering, but it is sometimes also used as an abbreviation for mechanical and electronic engineering. The major of mechanical and electronic engineering cultivates advanced application-oriented and technical talents with the necessary basic theoretical knowledge, specialized knowledge and strong ability to engage in practical work in this professional field, who are able to adapt to the needs of production, construction, management and service front lines, and are well-rounded in moral, intellectual, physical and aesthetic aspects; ventilation ducts are metal or composite ducts used in ventilation and air-conditioning engineering for industrial and civil buildings. They are a kind of municipal infrastructure for air circulation and reducing the concentration of harmful gases. The current connection methods for ventilation ducts include threaded connection, welding connection, flange connection, socket connection, groove connection and other forms;

[0003] Existing ventilation duct connection structures mostly simply use bolts to tighten them tightly. Although this connection method is very convenient to operate, the sealing performance of the connection between the pipe ends of the two ventilation ducts is poor, which is prone to air leakage. Therefore, we need to propose a ventilation duct connection structure for electromechanical engineering. Utility Model Content

[0004] The purpose of the present utility model is to provide a ventilation duct connection structure for electromechanical engineering, which is sealed and connected by a first ventilation duct and a ventilation ball tube, and then the ventilation ball tube is connected to the second ventilation duct under the limitation of a first limiting ball tube and a second limiting ball tube, and the ventilation ball tube seal is arranged inside the first limiting ball tube and the second limiting ball tube, thereby improving the sealing connectivity of the first ventilation duct, the ventilation ball tube and the second ventilation duct, and strengthening the sealing by arranging an outer rubber sealing ring and an inner rubber sealing ring, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a ventilation duct connection structure for electromechanical engineering, comprising a first ventilation duct and a second ventilation duct, wherein one end of the first ventilation duct is sealedly connected to a ventilation ball tube, a first limiting ball tube and a second limiting ball tube are sealedly provided on the outer arc surface of the ventilation ball tube, and a first connecting ring is fixedly installed on the outer arc surface of the first limiting ball tube;

[0006] The first ventilation duct and the first connecting ring are provided with sealing components on the side thereof for enhancing the sealing performance of the connection;

[0007] The sealing assembly includes an outer rubber sealing ring and an inner rubber sealing ring. The outer rubber sealing ring is fixedly arranged on a side of the first connecting ring close to the second limiting ball tube, and the inner rubber sealing ring is adhesively arranged on a side of the ventilation ball tube away from the first ventilation duct.

[0008] Preferably, the second ventilation duct is fixedly connected to the second limiting ball tube, and an inner sealing groove corresponding to the inner rubber sealing ring is provided on a side of the second ventilation duct close to the first ventilation duct.

[0009] Preferably, a second connecting ring is fixedly mounted on the outer arc surface of the second limiting ball tube, and an outer sealing groove corresponding to the outer rubber sealing ring is provided on a side of the second connecting ring close to the first connecting ring.

[0010] Preferably, a plurality of connection plates are fixedly provided on the outer arc surfaces of the first connection ring and the second connection ring, and the side surfaces of the plurality of connection plates are threadedly connected with connection bolts.

[0011] Preferably, the first limiting ball tube and the second limiting ball tube are both provided with mounting grooves corresponding to the ventilation ball tube, and the ventilation ball tube is fixedly mounted on the inner wall of the first limiting ball tube.

[0012] Preferably, the second ventilation duct is in contact with the ventilation bulb, and the inner rubber sealing ring is located between the second ventilation duct and the ventilation bulb.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model is achieved by sealingly connecting the first ventilation duct and the ventilation ball tube, and then the ventilation ball tube is connected to the second ventilation duct under the limitation of the first limiting ball tube and the second limiting ball tube, and the ventilation ball tube seal is arranged inside the first limiting ball tube and the second limiting ball tube, thereby improving the sealing connectivity of the first ventilation duct, the ventilation ball tube and the second ventilation duct, and further strengthening the sealing connectivity of the first ventilation duct, the ventilation ball tube and the second ventilation duct by arranging an outer rubber sealing ring and an inner rubber sealing ring, and then the first ventilation duct, the second ventilation duct and the ventilation ball tube are bolted together through the first connecting ring and the second connecting ring, thereby facilitating operation while improving sealing.

[0015] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 4 It is a sectional exploded view of the overall structure of the utility model.

[0020] In the figure: 1. First ventilation duct; 2. First limiting ball tube; 3. Connecting plate; 5. Second ventilation duct; 6. Connecting bolt; 7. First connecting ring; 8. Ventilation ball tube; 9. Outer rubber sealing ring; 10. Outer sealing groove; 11. Inner rubber sealing ring; 12. Inner sealing groove; 13. Second limiting ball tube; 14. Mounting groove; 15. Second connecting ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides: a ventilation duct connection structure for electromechanical engineering, such as Figure 1-4 As shown, it includes a first ventilation duct 1 and a second ventilation duct 5. One end of the first ventilation duct 1 is sealed with a ventilation ball tube 8. The outer arc surface of the ventilation ball tube 8 is sealed with a first limiting ball tube 2 and a second limiting ball tube 13. The outer arc surface of the first limiting ball tube 2 is fixedly installed with a first connecting ring 7.

[0023] The first ventilation duct 1 and the first connecting ring 7 are provided with sealing components on the side thereof for enhancing the sealing performance of the connection;

[0024] The sealing assembly includes an outer rubber sealing ring 9 and an inner rubber sealing ring 11. The outer rubber sealing ring 9 is fixedly arranged on the side of the first connecting ring 7 close to the second limiting bulb 13, and the inner rubber sealing ring 11 is adhesively arranged on the side of the ventilation bulb 8 away from the first ventilation duct 1;

[0025] The first ventilation duct 1 and the ventilation ball tube 8 are sealed and connected, and then the ventilation ball tube 8 is connected to the second ventilation duct 5 under the limitation of the first limiting ball tube 2 and the second limiting ball tube 13, and the ventilation ball tube 8 is sealed and arranged inside the first limiting ball tube 2 and the second limiting ball tube 13, thereby improving the sealing connectivity of the first ventilation duct 1, the ventilation ball tube 8 and the second ventilation duct 5, and further strengthening the sealing connectivity of the first ventilation duct 1, the ventilation ball tube 8 and the second ventilation duct 5 by arranging the outer rubber sealing ring 9 and the inner rubber sealing ring 11, thereby facilitating operation while improving sealing.

[0026] Preferably, the second ventilation duct 5 is fixedly connected to the second limiting ball tube 13, and an inner sealing groove 12 corresponding to the inner rubber sealing ring 11 is provided on the side of the second ventilation duct 5 close to the first ventilation duct 1. The second ventilation duct 5 and the second limiting ball tube 13 are manufactured by integral molding to avoid air leakage between the second ventilation duct 5 and the second limiting ball tube 13, and the inner sealing groove 12 is provided with an outer arc surface at the connection between the second ventilation duct 5 and the ventilation ball tube 8, thereby avoiding air leakage at the connection between the second ventilation duct 5 and the ventilation ball tube 8.

[0027] Furthermore, a second connecting ring 15 is fixedly installed on the outer arc surface of the second limiting ball tube 13, and an outer sealing groove 10 corresponding to the outer rubber sealing ring 9 is opened on the side of the second connecting ring 15 close to the first connecting ring 7. The second limiting ball tube 13 and the second connecting ring 15 are sealed and connected, and the outer rubber sealing ring 9 is inserted into the outer sealing groove 10, further avoiding air leakage at the connection between the second ventilation duct 5 and the ventilation ball tube 8.

[0028] Furthermore, several groups of connecting plates 3 are fixedly provided on the outer arc surfaces of the first connecting ring 7 and the second connecting ring 15, and the side surfaces of several groups of connecting plates 3 are threadedly connected with connecting bolts 6. When the first ventilation duct 1, the second ventilation duct 5 and the ventilation ball tube 8 are connected, several groups of connecting bolts 6 penetrate the connecting plates 3 on the outer arc surfaces of the first connecting ring 7 and the second connecting ring 15, thereby threading the first ventilation duct 1, the second ventilation duct 5 and the ventilation ball tube 8.

[0029] It is worth noting that the first limiting ball tube 2 and the second limiting ball tube 13 are both provided with installation grooves 14 corresponding to the ventilation ball tube 8, and the ventilation ball tube 8 is fixedly installed on the inner wall of the first limiting ball tube 2, and is inserted into the second limiting ball tube 13 through the ventilation ball tube 8. Then, after the first limiting ball tube 2 and the second limiting ball tube 13 are bolted together, the ventilation ball tube 8 is fitted with the first limiting ball tube 2 and the second limiting ball tube 13 to avoid deviations in the connection between the first ventilation duct 1, the second ventilation duct 5 and the ventilation ball tube 8, thereby further strengthening the connection strength between the first ventilation duct 1, the second ventilation duct 5 and the ventilation ball tube 8.

[0030] Specifically, the second ventilation duct 5 is in contact with the ventilation bulb 8, and the inner rubber sealing ring 11 is located between the second ventilation duct 5 and the ventilation bulb 8. The contact surfaces of the second ventilation duct 5 and the ventilation bulb 8 are located on the same horizontal plane, thereby avoiding the height difference between the second ventilation duct 5 and the ventilation bulb 8, which may cause air leakage at the connection.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation duct connection structure for electromechanical engineering, characterized in that: The invention comprises: a first ventilation duct (1) and a second ventilation duct (5); one end of the first ventilation duct (1) is sealedly connected to a ventilation ball tube (8); the outer arc surface of the ventilation ball tube (8) is sealed with a first limiting ball tube (2) and a second limiting ball tube (13); the outer arc surface of the first limiting ball tube (2) is fixedly mounted with a first connecting ring (7); Sealing components for enhancing the sealing performance of the connection are provided on the sides of the first ventilation duct (1) and the first connecting ring (7); The sealing assembly comprises an outer rubber sealing ring (9) and an inner rubber sealing ring (11), wherein the outer rubber sealing ring (9) is fixedly arranged on a side of the first connecting ring (7) close to the second limiting bulb (13), and the inner rubber sealing ring (11) is adhesively arranged on a side of the ventilation bulb (8) away from the first ventilation duct (1).

2. A ventilation duct connection structure for electromechanical engineering according to claim 1, characterized in that: The second ventilation duct (5) is fixedly connected to the second limiting ball tube (13), and an inner sealing groove (12) corresponding to the inner rubber sealing ring (11) is provided on a side of the second ventilation duct (5) close to the first ventilation duct (1).

3. A ventilation duct connection structure for electromechanical engineering according to claim 2, characterized in that: A second connecting ring (15) is fixedly mounted on the outer arc surface of the second limiting ball tube (13), and an outer sealing groove (10) corresponding to the outer rubber sealing ring (9) is provided on a side of the second connecting ring (15) close to the first connecting ring (7).

4. A ventilation duct connection structure for electromechanical engineering according to claim 3, characterized in that: Several groups of connecting plates (3) are fixedly provided on the outer arc surfaces of the first connecting ring (7) and the second connecting ring (15), and the side surfaces of the several groups of connecting plates (3) are threadedly connected with connecting bolts (6).

5. The ventilation duct connection structure for electromechanical engineering according to claim 1, characterized in that: The first limiting ball tube (2) and the second limiting ball tube (13) are both provided with mounting grooves (14) corresponding to the ventilation ball tube (8), and the ventilation ball tube (8) is fixedly mounted on the inner wall of the first limiting ball tube (2).

6. The ventilation duct connection structure for electromechanical engineering according to claim 1, characterized in that: The second ventilation duct (5) is in contact with the ventilation bulb (8), and the inner rubber sealing ring (11) is located between the second ventilation duct (5) and the ventilation bulb (8).

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