Connecting structure of ventilating duct

Abstract

The utility model relates to a connecting structure of a ventilation pipeline, and belongs to the technical field of air pipe connection, the connecting structure comprises a plurality of sections of air pipe bodies which can be mutually spliced, two connecting blocks which are symmetrically arranged up and down are fixedly connected to the peripheral sides of the air pipe bodies and located at the ends of the air pipe bodies, and the connecting blocks are sleeved with connecting sleeves; a pushing piece is arranged on the side wall of the connecting sleeve, a mounting groove corresponding to the pushing piece in position is formed in the connecting block, a locking piece abutting against the pushing piece is arranged in the mounting groove, a locking groove is formed in the connecting sleeve, and when the pushing end of the pushing piece abuts against the locking piece, the locking piece is locked in the locking groove. The locking end of the locking piece penetrates through the connecting block and is matched with the locking groove in an inserted mode. The air duct has the advantages that the adjacent air duct bodies can be conveniently mounted, so that the mounting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air duct connection, and in particular to a connection structure of a ventilation duct. Background Art

[0002] In the field of construction engineering, air ducts are indispensable components of air-conditioning systems, and the installation efficiency and quality of air ducts have a crucial impact on the performance of the entire system.

[0003] In the existing process of installing two adjacent air ducts, flanges are fixedly sleeved at the ports of the air ducts so that the two adjacent flanges fit each other, and then the two fitting flanges are fixed by bolts and nuts to achieve the connection of the two adjacent air ducts.

[0004] The present application provides another technical solution that can achieve convenient installation between adjacent air ducts to improve installation efficiency, aiming to provide technical personnel in the field with a variety of solution options for solving problems. Utility Model Content

[0005] In order to achieve convenient installation between adjacent air duct bodies and improve installation efficiency, the present application provides a connection structure for ventilation ducts.

[0006] The present application provides a connection structure for ventilation ducts using the following technical solution:

[0007] A connection structure for a ventilation duct comprises a plurality of sections of an air duct body which can be connected to each other, wherein two connection blocks which are symmetrically arranged up and down are fixedly connected to the circumferential side and the end of the air duct body, wherein a connection sleeve is sleeved on the connection block, a pushing member is arranged on the side wall of the connection sleeve, an installation groove corresponding to the position of the pushing member is provided on the connection block, a locking member which abuts against the pushing member is arranged in the installation groove, and a locking groove is provided in the connection sleeve, and when the pushing end of the pushing member abuts against the locking member, the locking end of the locking member passes through the connection block and is plugged into and matched with the locking groove.

[0008] By adopting the above technical solution, when two adjacent air duct bodies are spliced, the connecting blocks with corresponding positions fit together, and then the connecting sleeve is put on the two connecting blocks that fit together, so that under the limiting action of the connecting sleeve, the two connecting blocks cannot move in the opposite direction, so that the pushing end of the pushing member abuts against the locking member, and the locking end of the locking member passes through the connecting block and engages with the locking groove; thereby locking the connecting block in the connecting sleeve, thereby realizing convenient installation between adjacent air duct bodies to improve installation efficiency.

[0009] Preferably, the locking member includes a mounting rod fixedly connected in the mounting groove, a spring sheet arranged on the mounting rod and a locking rod arranged on the spring sheet. When the pushing end of the pushing member abuts against the spring sheet, the end of the locking rod away from the spring sheet passes through the connecting block and is plugged into the locking groove.

[0010] By adopting the above technical solution, when the pushing end of the pushing member abuts against the spring sheet, the end of the locking rod away from the spring sheet penetrates the connecting block and engages with the locking groove, thereby locking the connecting block in the connecting sleeve.

[0011] Preferably, the pushing member includes a mounting seat fixedly connected to the side wall of the connecting sleeve, a screw threadedly connected to the mounting seat, and an abutment block fixedly connected to the end of the screw. A through opening corresponding to the position of the screw is opened on the side wall of the connecting sleeve, and the abutment block abuts against the spring sheet.

[0012] By adopting the above technical solution, the screw rod is rotated. Since the screw rod is threadedly connected to the mounting seat, the screw rod drives the abutment block to move in the direction close to the spring sheet until the abutment block abuts against the spring sheet to make the spring sheet expand outward. During the process of the spring sheet expanding outward, the end of the locking rod away from the spring sheet passes through the connecting block and engages with the locking groove; thereby locking the connecting block in the connecting sleeve.

[0013] Preferably, one end of the screw rod away from the abutment block is fixedly connected with a handle.

[0014] By adopting the above technical solution, the arrangement of the handle facilitates the rotation of the screw rod.

[0015] Preferably, two locking rods are provided on the same spring sheet, and the two locking rods are symmetrically arranged on the spring sheet, and the number of the locking grooves is consistent with the number of the locking rods and corresponds one to one.

[0016] By adopting the above technical solution, the connecting block can be locked in the connecting sleeve more stably.

[0017] Preferably, one end of the first air duct body close to the second air duct body is fixedly connected to an insertion frame, and one end of the second air duct body close to the first air duct body is provided with a slot for plugging and cooperating with the insertion frame.

[0018] By adopting the above technical solution, the plug-in cooperation between the plug-in frame and the slot realizes the connection between two adjacent air duct bodies.

[0019] Preferably, a rectangular groove is formed on the peripheral side of the insertion frame, and a sealing ring is sleeved in the rectangular groove.

[0020] By adopting the above technical solution, the arrangement of the sealing ring and the rectangular groove ensures the sealing of the connection between the two air duct bodies.

[0021] Preferably, a plurality of the rectangular grooves are provided, and the plurality of rectangular grooves are evenly spaced along the length direction of the insertion frame.

[0022] By adopting the above technical solution and providing a plurality of rectangular grooves, a plurality of sealing rings are also provided, and the plurality of sealing rings makes the sealing between adjacent air duct bodies better.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When two adjacent air duct bodies are spliced, the corresponding connecting blocks are fitted together, and then the connecting sleeve is put on the two connecting blocks that fit together, so that under the limiting effect of the connecting sleeve, the two connecting blocks cannot move in the opposite direction, so that the pushing end of the pushing member abuts against the locking member, and the locking end of the locking member passes through the connecting block and is plugged into the locking groove; thereby locking the connecting block in the connecting sleeve, thereby realizing convenient installation between adjacent air duct bodies to improve installation efficiency;

[0025] 2. Turn the screw rod. Since the screw rod is threadedly connected to the mounting seat, the screw rod drives the abutment block to move toward the direction close to the spring sheet until the abutment block abuts against the spring sheet, so that the spring sheet expands outward. During the process of the spring sheet expanding outward, the end of the locking rod away from the spring sheet penetrates the connecting block and engages with the locking groove; thereby locking the connecting block in the connecting sleeve;

[0026] 3. The setting of the sealing ring and the rectangular groove ensures the sealing of the connection between the two air duct bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall cross-sectional view of this application.

[0028] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0029] Explanation of the reference numerals: 1. duct body; 11. connecting block; 111. mounting groove; 12. insertion frame; 121. rectangular groove; 122. sealing ring; 13. slot; 2. connecting sleeve; 21. locking groove; 22. through opening; 3. mounting rod; 31. spring piece; 32. locking rod; 4. mounting seat; 41. screw rod; 411. handle; 42. abutment block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The present application embodiment discloses a connection structure of a ventilation duct. Figure 1 and Figure 2The connection structure of the ventilation duct includes a plurality of sections of an air duct body 1 that can be spliced ​​with each other. Two connecting blocks 11 symmetrically arranged up and down are fixedly connected to the circumferential side of the air duct body 1 and at the end of the air duct body 1. The cross-section of the connecting block 11 is L-shaped, and a connecting sleeve 2 is sleeved on the connecting block 11; when two adjacent air duct bodies 1 are spliced, the connecting blocks 11 corresponding to the positions fit each other, and then the connecting sleeve 2 is sleeved on the two connecting blocks 11 that fit each other, so that under the limiting action of the connecting sleeve 2, the two connecting blocks 11 cannot move in the opposite direction; a pushing member is provided on the side wall of the connecting sleeve 2, and an installation groove 111 corresponding to the position of the pushing member is provided on the connecting block 11, and a locking member abutting against the pushing member is provided in the installation groove 111, and a locking groove 21 is provided in the connecting sleeve 2. When the pushing end of the pushing member abuts against the locking member, the locking end of the locking member passes through the connecting block 11 and is plugged into the locking groove 21; thereby locking the connecting block 11 in the connecting sleeve 2.

[0032] Reference Figure 1 and Figure 2 The locking member includes a mounting rod 3 fixedly connected to the mounting groove 111, a spring sheet 31 disposed on the mounting rod 3, and a locking rod 32 disposed on the spring sheet 31; the spring sheet 31 has a V-shaped cross section and its opening faces the pusher, the mounting rod 3 is fixedly connected to the inner side of the spring sheet 31 and is located at the end of the spring sheet 31 away from the pusher, and the locking rod 32 is fixedly connected to the outer side of the spring sheet 31 and is located at the opening of the spring sheet 31. When the pushing end of the pusher abuts against the spring sheet 31, the end of the locking rod 32 away from the spring sheet 31 passes through the connecting block 11 and is plugged and matched with the locking groove 21.

[0033] At the same time, in order to make the connecting block 11 more firmly locked in the connecting sleeve 2, two locking rods 32 are provided on the same spring piece 31, and the two locking rods 32 are symmetrically arranged on the spring piece 31; the number of locking grooves 21 is consistent with the number of locking rods 32 and corresponds one to one.

[0034] Reference Figure 1 and Figure 2 The pusher includes a mounting seat 4 fixedly connected to the side wall of the connecting sleeve 2, a screw 41 threadedly connected to the mounting seat 4, and an abutment block 42 fixedly connected to the end of the screw 41; the mounting seat 4 has a U-shaped cross section and its opening faces the side wall of the connecting sleeve 2, and a through hole 22 corresponding to the position of the screw 41 is opened on the side wall of the connecting sleeve 2. The abutment block 42 is truncated, and the end of the abutment block 42 with a smaller cross-sectional area faces the spring 31; the abutment block 42 can pass through the through hole 22 and extend into the mounting groove 111.

[0035] In the initial state, the abutment block 42 is located in the through-port 22, and the locking rod 32 does not extend outside the connection block 11, and does not affect the connection block 11 from sliding into the connection sleeve 2. When the through-port 22 is connected to the mounting groove 111, the abutment block 42 corresponds to the opening position of the spring sheet 31, and the position of the locking rod 32 also corresponds to the position of the locking groove 21, so that the screw rod 41 is rotated. Since the screw rod 41 is threadedly connected to the mounting seat 4, the screw rod 41 drives the abutment block 42 to move in the direction close to the spring sheet 31 until the abutment block 42 abuts against the spring sheet 31, so that the spring sheet 31 is expanded. During the expansion of the spring sheet 31, the end of the locking rod 32 away from the spring sheet 31 passes through the connection block 11 and is plugged into the locking groove 21; thereby locking the connection block 11 in the connection sleeve 2. At the same time, in order to facilitate the rotation of the screw rod 41, a handle 411 is fixedly connected to the end of the screw rod 41 away from the abutment block 42.

[0036] Reference Figure 1 and Figure 2 In order to ensure the sealing of the connection between two adjacent air duct bodies 1, the end of the front air duct body 1 close to the rear air duct body 1 is fixedly connected with an insertion frame 12, and a plurality of rectangular grooves 121 are provided on the periphery of the insertion frame 12. The plurality of rectangular grooves 121 are evenly spaced along the length direction of the insertion frame 12, and a sealing ring 122 is sleeved in each rectangular groove 121; the end of the rear air duct body 1 close to the front air duct body 1 is provided with a slot 13 that is plugged and matched with the insertion frame 12. Therefore, the sealing ring 122 is firstly sleeved in the rectangular groove 121, and the insertion frame 12 is plugged and matched with the slot 13, so that the connection between the two adjacent air duct bodies 1 is realized, and the sealing of the connection between the two air duct bodies 1 is also ensured due to the existence of the sealing ring 122.

[0037] Reference Figure 1 and Figure 2 In the process of installing the air duct body 1 on the indoor ceiling, the connecting sleeve 2 located above will be installed on the indoor ceiling through the installation component; the length of the connecting sleeve 2 is greater than the length of the connecting block 11, and two groups of installation components are provided, both groups of installation components are connected to the connecting sleeve 2, and the connecting block 11 is located between the two groups of installation components; the setting of the installation component plays a role in installing the air duct body 1 on the indoor ceiling.

[0038] The installation assembly includes a mounting member embedded in the indoor top and a fixing member connected to the mounting member; in this embodiment, the mounting member is an expansion bolt, and the fixing member is a fixing nut threadedly connected to the bolt rod of the expansion bolt. The expansion bolt is vertically embedded in the indoor top, and the expansion bolt passes through the top surface of the connecting sleeve 2 located above and extends into the connecting sleeve 2, so that the fixing nut is threadedly connected to the bolt rod of the expansion bolt, thereby fixing the connecting sleeve 2 located above to the indoor top.

[0039] The implementation principle of the connection structure of a ventilation duct in an embodiment of the present application is as follows: a sealing ring 122 is put into the rectangular groove 121, and then the insertion frame 12 is plugged into the slot 13. At this time, the connecting blocks 11 corresponding to the positions are fitted with each other, and then the connecting sleeve 2 is put on the two connecting blocks 11 that are fitted with each other, so that under the limiting action of the connecting sleeve 2, the two connecting blocks 11 cannot move in the opposite direction; the screw rod 41 is rotated by the handle 411, and since the screw rod 41 is threadedly connected to the mounting seat 4, the screw 41 drives the abutment block 42 to move in the direction close to the spring sheet 31 until the abutment block 42 abuts against the spring sheet 31, so that the spring sheet 31 is expanded outward. During the expansion of the spring sheet 31, the end of the locking rod 32 away from the spring sheet 31 passes through the connecting block 11 and is plugged into the locking groove 21; and then the connecting block 11 is locked in the connecting sleeve 2.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connection structure for a ventilation duct, characterized in that: The invention comprises a plurality of sections of an air duct body (1) which can be connected to each other. Two connection blocks (11) which are symmetrically arranged up and down are fixedly connected to the circumferential side of the air duct body (1) and located at the end of the air duct body (1). A connection sleeve (2) is sleeved on the connection block (11). A pushing member is arranged on the side wall of the connection sleeve (2). A mounting groove (111) corresponding to the position of the pushing member is provided on the connection block (11). A locking member which abuts against the pushing member is arranged in the mounting groove (111). A locking groove (21) is provided in the connection sleeve (2). When the pushing end of the pushing member abuts against the locking member, the locking end of the locking member passes through the connection block (11) and is plugged into and matched with the locking groove (21).

2. A ventilation duct connection structure according to claim 1, characterized in that: The locking member comprises a mounting rod (3) fixedly connected in the mounting groove (111), a spring sheet (31) arranged on the mounting rod (3), and a locking rod (32) arranged on the spring sheet (31); when the pushing end of the pushing member abuts against the spring sheet (31), an end of the locking rod (32) away from the spring sheet (31) penetrates the connecting block (11) and is plugged into and matched with the locking groove (21).

3. A connection structure of ventilation ducts according to claim 2, characterized in that: The pushing member comprises a mounting seat (4) fixedly connected to the side wall of the connecting sleeve (2), a screw rod (41) threadedly connected to the mounting seat (4), and an abutment block (42) fixedly connected to the end of the screw rod (41); a through opening (22) corresponding to the position of the screw rod (41) is provided on the side wall of the connecting sleeve (2), and the abutment block (42) abuts against the spring sheet (31).

4. A ventilation duct connection structure according to claim 3, characterized in that: One end of the screw rod (41) away from the abutment block (42) is fixedly connected to a handle (411).

5. A ventilation duct connection structure according to claim 2, characterized in that: Two locking rods (32) are provided on the same spring sheet (31), and the two locking rods (32) are symmetrically arranged on the spring sheet (31). The number of the locking grooves (21) is consistent with the number of the locking rods (32) and corresponds one to one.

6. A ventilation duct connection structure according to claim 1, characterized in that: An end of the first air duct body (1) close to the second air duct body (1) is fixedly connected to an insertion frame (12), and an end of the second air duct body (1) close to the first air duct body (1) is provided with a slot (13) for plugging and matching with the insertion frame (12).

7. A ventilation duct connection structure according to claim 6, characterized in that: A rectangular groove (121) is provided on the peripheral side of the insertion frame (12), and a sealing ring (122) is sleeved in the rectangular groove (121).

8. A ventilation duct connection structure according to claim 7, characterized in that: A plurality of rectangular grooves (121) are provided, and the plurality of rectangular grooves (121) are distributed at equal intervals along the length direction of the insertion frame (12).

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