Spliced air duct

Abstract

The utility model provides a splicing type air duct, which belongs to the field of air ducts and comprises a first sub air duct and a second sub air duct, and connecting components are arranged at opposite ends of the first sub air duct and the second sub air duct. The inner wall of one end of a first sub air duct is clamped with a first rubber sealing ring on the surface of a connecting ring, a plurality of first clamping heads are inserted into a plurality of corresponding first inserting holes, third inserting holes and first hole grooves, and then a plurality of first limiting pins are inserted into a plurality of corresponding first inserting holes, third inserting holes and first hole grooves; the first sub air duct and the connecting part are fixed through cooperation of the first backing ring and the first gasket, similarly, the second sub air duct and the other end of the connecting part are installed and fixed, and the edge side of the second sub air duct is clamped with the second rubber sealing ring on the inner wall of the groove, so that the connection sealing performance is conveniently improved, and splicing of the first sub air duct and the second sub air duct is achieved.

Description

Technical Field

[0001] The utility model relates to the field of air ducts, in particular to a spliced air duct. Background Art

[0002] The air duct of the fan is relatively long, which has the following disadvantages: after long-term use, the internal stress causes the air duct to be distorted and deformed, and the radial strength of the air duct is relatively low. In actual production, the manufacture of a relatively long air duct requires high manufacturing equipment and processes. Therefore, splicing operations between some structures are required to achieve overall installation and use. After retrieval, a spliced air duct disclosed in the application number CN202111024468.0 includes two sub-air ducts and a connection component connecting the two sub-air ducts. The end of the sub-air duct is provided with an edge bent inward. The connection component includes two annular supports and a plurality of arc-shaped parts distributed along the circumferential direction of the sub-air duct. The arc-shaped part is provided with an arc-shaped groove, and the two side walls of the arc-shaped groove are inclined walls. One end face of the annular support is an inclined surface. The arc-shaped groove straddles the adjacent edges of the two sub-air ducts. The two annular supports are fitted in the arc-shaped groove and are located on both sides of the adjacent edges of the two sub-air ducts. The inclined surfaces of the two annular supports are respectively fitted with the two inclined walls of the arc-shaped groove; the sub-air duct is provided with fastening bolts connected to the arc-shaped parts. However, the above description still has the following defects in actual use: this spliced air duct is only convenient for splicing air duct components under the same specifications during use, and cannot assemble local air ducts of different specifications. At the same time, there is a lack of a protective structure outside the connection after assembly. Therefore, it is necessary to design a spliced air duct with strong practicability. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a spliced air duct to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A spliced air duct includes a first sub-air duct and a second sub-air duct, and a connection component is provided at one end where the first sub-air duct and the second sub-air duct face each other;

[0005] Connecting component, the connecting component includes two connecting rings that are engaged with the inner walls of the opposite ends of the first sub-air duct and the second sub-air duct. One end of the two connecting rings is fixedly connected to the inner wall edges of both ends of the connecting part, and a plurality of first holes and second holes are respectively opened on the surfaces of the inner walls of the two grooves. One ends of a plurality of the first pins and the second pins are threadedly connected to the inner walls of the plurality of first holes and the second holes respectively. The surfaces of the plurality of first pins and the second pins are respectively inserted through the surfaces of the first cushion ring and the second cushion ring. The edges on one side of the first cushion ring and the second cushion ring are respectively inserted through the surfaces of a plurality of first clamping joints and second clamping joints provided at the opposite ends of the first sub-air duct and the second sub-air duct. One ends of the plurality of first clamping joints and the second clamping joints can be respectively engaged and connected to the inner walls of the plurality of first holes and the second holes. A protective component is provided on the surface of the connecting part;

[0006] Protective component, the protective component includes two mounting blocks mounted on the surface of the connecting part. Two mounting holes are respectively opened on both sides of the two mounting blocks. The inner walls of a plurality of groups of the mounting holes are respectively inserted through a plurality of groups of connecting holes opened on the surfaces of two groups of connecting blocks by mounting bolts. One ends of the two groups of connecting blocks are fixedly connected to both ends of two arc-shaped protective plates. A plurality of elastic protective strips are provided on the surfaces of the two arc-shaped protective plates. Arc-shaped cushion blocks are provided on the inner walls of the two arc-shaped protective plates.

[0007] As a preferred solution of the present utility model: a first annular groove is opened at the edge of one end of the connecting ring, and a first rubber sealing ring is engaged and connected to the inner wall of the first annular groove.

[0008] As a preferred solution of the present utility model: second annular grooves are respectively opened at the edges of the inner walls of the two grooves, and second rubber sealing rings are engaged and connected to the inner walls of the two second annular grooves.

[0009] As a preferred solution of the present utility model: a plurality of first insertion holes and second insertion holes are respectively opened on the surfaces of the first cushion ring and the second cushion ring. The inner walls of the plurality of first insertion holes and the second insertion holes are respectively inserted through the surfaces of a plurality of first pins and second pins. The inner walls of the plurality of first insertion holes and the second insertion holes can also be respectively inserted through the surfaces of a plurality of first clamping joints and second clamping joints.

[0010] As a preferred solution of the present utility model: a first washer and a second washer are respectively provided on the other sides of the first cushion ring and the second cushion ring. A plurality of third insertion holes and fourth insertion holes are respectively opened on the surfaces of the first washer and the second washer. The inner walls of the plurality of third insertion holes and the fourth insertion holes are respectively inserted through the surfaces of a plurality of first clamping joints and second clamping joints.

[0011] As a preferred embodiment of the present utility model: Two clamping grooves are formed on the surface of the connecting portion, and one ends of two mounting blocks are clamped and connected to the inner walls of the two clamping grooves.

[0012] As a preferred embodiment of the present utility model: Card slots are formed at both ends of the two arc-shaped protective plates, and the inner walls of the two groups of card slots are clamped and connected to the surfaces on both sides of the two mounting blocks.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] (1) By clamping the inner wall of one end of the first sub-air duct with the first rubber sealing ring on the surface of the connecting ring, inserting a plurality of first card joints into the corresponding plurality of first insertion holes, third insertion holes and first slot, and then inserting a plurality of first limit pins into the corresponding plurality of first insertion holes, third insertion holes and first slot, and fixing the first sub-air duct and the connecting portion with the cooperation of the first cushion ring and the first washer. Similarly, the second sub-air duct is installed and fixed at the other end of the connecting portion, and the side of the second sub-air duct is clamped with the second rubber sealing ring on the inner wall of the groove, so as to facilitate increasing the sealing performance of the connection, thereby realizing the splicing of the first sub-air duct and the second sub-air duct;

[0015] (2) By clamping the two mounting blocks with the inner walls of the two clamping grooves, the two mounting blocks are installed and fixed with the connecting portion. The two groups of card slots at both ends of the two arc-shaped protective plates are clamped with the surfaces of the two mounting blocks. At the same time, the two arc-shaped pads on the inner walls of the two arc-shaped protective plates are in contact with the surface of the connecting portion. In addition, a plurality of sets of mounting bolts are inserted into the corresponding plurality of connecting holes and mounting holes, so as to install and fix the two arc-shaped protective plates and the two mounting blocks, realizing the protection of the connection between the first sub-air duct and the second sub-air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the present utility model;

[0017] Figure 2 is a schematic structural view of the present utility model;

[0018] Figure 3 is a schematic structural view of the connection assembly of the present utility model;

[0019] Figure 4 is a schematic structural view of the connection assembly of the present utility model;

[0020] Figure 5 is a schematic structural view of the protection assembly of the present utility model.

[0021] In the figure: 1. First sub-air duct; 11. First card connector; 2. Second sub-air duct; 21. Second card connector; 3. Connection component; 31. Connection ring; 32. Connection part; 33. Groove; 34. First hole slot; 35. Second hole slot; 36. First limit pin; 37. Second limit pin; 38. First gasket ring; 39. Second gasket ring; 310. First rubber sealing ring; 311. Second rubber sealing ring; 312. First jack; 313. Second jack; 314. First washer; 315. Second washer; 316. Third jack; 317. Fourth jack; 318. Card slot; 4. Protection component; 41. Installation block; 42. Installation hole; 43. Installation bolt; 44. Connection block; 45. Connection hole; 46. Arc-shaped protection plate; 47. Elastic protection strip; 48. Arc-shaped cushion block; 49. Card slot. Detailed implementation mode

[0022] To make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 5 , a spliced air duct, including a first sub-air duct 1 and a second sub-air duct 2, and a connection component 3 is provided at one end of the first sub-air duct 1 and the second sub-air duct 2 that face each other;

[0024] Please refer to Figure 3 , Figure 4 , the connection component 3, the connection component 3 includes two connection rings 31 that are snap-fitted with the inner walls of the opposite ends of the first sub-air duct 1 and the second sub-air duct 2. Grooves 33 are fixedly connected to the inner wall edges of both ends of the connection part 32 at the opposite ends of the two connection rings 31. A plurality of first hole slots 34 and second hole slots 35 are respectively opened on the surfaces of the inner walls of the two grooves 33. One ends of a plurality of first limit pins 36 and second limit pins 37 are threadedly connected to the inner walls of the plurality of first hole slots 34 and second hole slots 35 respectively. The surfaces of the plurality of first limit pins 36 and second limit pins 37 are respectively inserted through the surfaces of the first gasket ring 38 and the second gasket ring 39. The edges on one side of the first gasket ring 38 and the second gasket ring 39 are respectively inserted through the surfaces of a plurality of first card connectors 11 and second card connectors 21 provided at the opposite ends of the first sub-air duct 1 and the second sub-air duct 2. One ends of the plurality of first card connectors 11 and second card connectors 21 can be respectively snap-fitted with the inner walls of the plurality of first hole slots 34 and second hole slots 35, and a protection component 4 is provided on the surface of the connection part 32.

[0025] During specific use: The inner wall at one end of the first sub-air duct 1 is engaged with the first rubber sealing ring 310 on the surface of the connecting ring 31, and several first clamping joints 11 are inserted into the corresponding several first jacks 312, third jacks 316 and first slots 34. Then, several first limit pins 36 are inserted into the corresponding several first jacks 312, third jacks 316 and first slots 34. Together with the first spacer ring 38 and the first washer 314, the first sub-air duct 1 is fixed to the connecting part 32. Several second clamping joints 21 at one end of the second sub-air duct 2 are inserted into the corresponding several second jacks 313, fourth jacks 317 and second slots 35. Then, several second limit pins 37 are inserted into the corresponding several second jacks 313, fourth jacks 317 and second slots 35. Together with the second spacer ring 39 and the second washer 315, the second sub-air duct 2 is fixed to the connecting part 32. The side of the second sub-air duct 2 is engaged with the second rubber sealing ring 311 on the inner wall of the groove 33, so as to facilitate increasing the connection tightness, thereby realizing the splicing of the first sub-air duct 1 and the second sub-air duct 2 and completing the connection of local cylinders of different specifications.

[0026] Please refer to Figure 5 , the protection component 4, the protection component 4 includes two mounting blocks 41 mounted on the surface of the connecting part 32. Two mounting holes 42 are opened on both sides of the two mounting blocks 41. The inner walls of several groups of mounting holes 42 are inserted and connected with several groups of connecting holes 45 opened on the surfaces of two groups of connecting blocks 44 through mounting bolts 43. The opposite ends of the two groups of connecting blocks 44 are fixedly connected with the two ends of two arc-shaped protection plates 46. Several elastic protection strips 47 are arranged on the surfaces of the two arc-shaped protection plates 46, and arc-shaped cushion blocks 48 are arranged on the inner walls of the two arc-shaped protection plates 46.

[0027] During specific use: The two mounting blocks 41 are engaged with the inner walls of the two clamping grooves 318, so as to be installed and fixed to the connecting part 32. The two groups of clamping grooves 49 at the two ends of the two arc-shaped protection plates 46 are engaged with the surfaces of the two mounting blocks 41. At the same time, the two arc-shaped cushion blocks 48 on the inner walls of the two arc-shaped protection plates 46 are in contact with the surface of the connecting part 32. In addition, several groups of mounting bolts 43 are inserted into several groups of connecting holes 45 and mounting holes 42, so as to install and fix the two arc-shaped protection plates 46 and the two mounting blocks 41, realizing the protection of the connection between the first sub-air duct 1 and the second sub-air duct 2.

[0028] Please refer to Figure 3 , Figure 4 An edge at one end of the connecting ring 31 is provided with a first annular groove, and a first rubber sealing ring 310 is engaged and connected to the inner wall of the first annular groove.

[0029] During specific use: The first rubber sealing ring 310 on the surface of the connecting ring 31 is engaged with the inner wall of one end of the first sub-air duct 1, so as to facilitate the limit engagement of the first sub-air duct 1 and the connecting ring 31.

[0030] Please refer to Figure Figure 3 、 Figure 4 On the edges of the inner walls of the two grooves 33, second annular grooves are respectively formed, and second rubber sealing rings 311 are engaged and connected to the inner walls of the two second annular grooves.

[0031] During specific use: The side of the second sub-air duct 2 is engaged with the second rubber sealing ring 311 on the inner wall of the second annular groove, and a plurality of second limit pins 37 are used to facilitate the limit engagement of the second sub-air duct 2 and the connecting portion 32.

[0032] Please refer to Figure 3 、 Figure 4 On the surfaces of the first cushion ring 38 and the second cushion ring 39, a plurality of first insertion holes 312 and second insertion holes 313 are respectively formed. The inner walls of the plurality of first insertion holes 312 and second insertion holes 313 are respectively inserted and connected with the surfaces of a plurality of first limit pins 36 and second limit pins 37. The inner walls of the plurality of first insertion holes 312 and second insertion holes 313 can also be respectively inserted and connected with the surfaces of a plurality of first card joints 11 and second card joints 21.

[0033] During specific use: Insert a plurality of first card joints 11 into the corresponding plurality of first insertion holes 312, third insertion holes 316 and first hole grooves 34, and then insert a plurality of first limit pins 36 into the other corresponding plurality of first insertion holes 312, third insertion holes 316 and first hole grooves 34, so as to limit and fix the first cushion ring 38 and the connecting portion 32. Insert a plurality of second card joints 21 at one end of the second sub-air duct 2 into the corresponding plurality of second insertion holes 313, fourth insertion holes 317 and second hole grooves 35, and then insert a plurality of second limit pins 37 into the other corresponding plurality of second insertion holes 313, fourth insertion holes 317 and second hole grooves 35, so as to limit and fix the second cushion ring 39 and the connecting portion 32, realizing the installation limit of the first sub-air duct 1 and the second sub-air duct 2.

[0034] Please refer to Figure 3 、 Figure 4 On the other sides of the first cushion ring 38 and the second cushion ring 39, a first washer 314 and a second washer 315 are respectively provided. On the surfaces of the first washer 314 and the second washer 315, a plurality of third insertion holes 316 and fourth insertion holes 317 are respectively formed. The inner walls of the plurality of third insertion holes 316 and fourth insertion holes 317 are respectively inserted and connected with the surfaces of a plurality of first card joints 11 and second card joints 21.

[0035] During specific use: The surfaces of a number of first card connectors 11 and second card connectors 21 are respectively engaged with a number of third jacks 316 and fourth jacks 317, so as to facilitate the installation and connection of the first washer 314 and the second washer 315 to the first sub-air duct 1 and the second sub-air duct 2 respectively, and limit the engagement degree with the connection ring 31.

[0036] Please refer to Figure 3 、 Figure 4 On the surface of the connecting portion 32, two card slots 318 are provided, and the inner walls of the two card slots 318 are engaged with one ends of the two mounting blocks 41.

[0037] During specific use: One ends of the two mounting blocks 41 are engaged with the inner walls of the two card slots 318, so as to facilitate the engagement and fixation of the two mounting blocks 41 with the connecting portion 32.

[0038] Please refer to Figure 1 、 Figure 5 At both ends of the two arc-shaped protective plates 46, card slots 49 are provided, and the inner walls of the two groups of card slots 49 are engaged with the surfaces on both sides of the two mounting blocks 41.

[0039] During specific use: The inner walls of the two groups of card slots 49 are engaged with the surfaces on both sides of the two mounting blocks 41, so as to facilitate the engagement and fixation of the two arc-shaped protective plates 46 with the two mounting blocks 41.

[0040] During use, the inner wall of one end of the first sub-air duct 1 is engaged with the first rubber sealing ring 310 on the surface of the connection ring 31, and a number of first card connectors 11 are inserted into the corresponding number of first jacks 312, third jacks 316 and first grooves 34. Then, a number of first limit pins 36 are inserted into the corresponding number of first jacks 312, third jacks 316 and first grooves 34, and the first sub-air duct 1 is fixed to the connecting portion 32 by means of the first spacer ring 38 and the first washer 314. A number of second card connectors 21 at one end of the second sub-air duct 2 are inserted into the corresponding number of second jacks 313, fourth jacks 317 and second grooves 35. Then, a number of second limit pins 37 are inserted into the corresponding number of second jacks 313, fourth jacks 317 and second grooves 35, and the second sub-air duct 2 is fixed to the connecting portion 32 by means of the second spacer ring 39 and the second washer 315. The side of the second sub-air duct 2 is engaged with the second rubber sealing ring 311 on the inner wall of the groove 33, which is convenient for increasing the connection tightness, realizing the splicing of the first sub-air duct 1 and the second sub-air duct 2, and completing the connection of local cylinders of different specifications.

[0041] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A spliced ​​air duct, characterized in that: It comprises a first sub-air cylinder (1) and a second sub-air cylinder (2), wherein opposite ends of the first sub-air cylinder (1) and the second sub-air cylinder (2) are provided with a connecting assembly (3); A connecting assembly (3), the connecting assembly (3) comprising two connecting rings (31) engaged with inner walls of opposite ends of the first sub-air duct (1) and the second sub-air duct (2), the opposite ends of the two connecting rings (31) being fixedly connected to grooves (33) provided at the edges of the inner walls of both ends of the connecting portion (32), the surfaces of the inner walls of the two grooves (33) being provided with a plurality of first hole grooves (34) and second hole grooves (35), the inner walls of the plurality of first hole grooves (34) and second hole grooves (35) being respectively threadedly connected to one ends of a plurality of first limit pins (36) and second limit pins (37), the plurality of first limit pins (36) and second limit pins (37) being respectively threadedly connected to the inner walls of the plurality of first hole grooves (34) and second hole grooves (35), The surfaces of the positioning pin (36) and the second limiting pin (37) are respectively connected to the surfaces of the first gasket (38) and the second gasket (39); the edges of one side of the first gasket (38) and the second gasket (39) are respectively connected to the surfaces of a plurality of first clamping joints (11) and a second clamping joint (21) provided at opposite ends of the first sub-air duct (1) and the second sub-air duct (2); one end of the plurality of first clamping joints (11) and the second clamping joints (21) can be respectively connected to the inner walls of a plurality of first hole grooves (34) and the second hole grooves (35); and a protective component (4) is provided on the surface of the connecting portion (32); A protective component (4), the protective component (4) comprising two mounting blocks (41) mounted on the surface of the connecting portion (32), two mounting holes (42) being provided on both sides of the two mounting blocks (41), the inner walls of a plurality of groups of the mounting holes (42) being interlaced and connected with a plurality of groups of connecting holes (45) provided on the surfaces of the two groups of connecting blocks (44) through mounting bolts (43), the opposite ends of the two groups of connecting blocks (44) being fixedly connected with the two ends of two arc-shaped protective plates (46), the surfaces of the two arc-shaped protective plates (46) being provided with a plurality of elastic protective strips (47), and the inner walls of the two arc-shaped protective plates (46) being provided with arc-shaped pads (48).

2. A spliced ​​air duct according to claim 1, characterized in that: A first annular groove is formed on the edge of one end of the connecting ring (31), and a first rubber sealing ring (310) is snap-connected to the inner wall of the first annular groove.

3. The spliced ​​air duct according to claim 1, characterized in that: The edges of the inner walls of the two grooves (33) are each provided with a second annular groove, and the inner walls of the two second annular grooves are each clamped and connected with a second rubber sealing ring (311).

4. The spliced ​​air duct according to claim 1, characterized in that: The surfaces of the first gasket (38) and the second gasket (39) are respectively provided with a plurality of first plug holes (312) and a second plug hole (313); the inner walls of the plurality of first plug holes (312) and the second plug holes (313) are respectively connected to the surfaces of the plurality of first limit pins (36) and the second limit pins (37); the inner walls of the plurality of first plug holes (312) and the second plug holes (313) can also be respectively connected to the surfaces of the plurality of first clamping joints (11) and the second clamping joints (21).

5. The spliced ​​air duct according to claim 1, characterized in that: A first gasket (314) and a second gasket (315) are respectively provided on the other side of the first gasket (38) and the second gasket (39); a plurality of third plug holes (316) and a fourth plug hole (317) are respectively provided on the surface of the first gasket (314) and the second gasket (315); the inner walls of the plurality of third plug holes (316) and the fourth plug holes (317) are respectively connected to the surfaces of the plurality of first card joints (11) and the second card joints (21) through insertion.

6. The spliced ​​air duct according to claim 1, characterized in that: Two clamping grooves (318) are provided on the surface of the connection portion (32), and the inner walls of the two clamping grooves (318) are clamped and connected to one end of two mounting blocks (41).

7. The spliced ​​air duct according to claim 1, characterized in that: Both ends of the two arc-shaped protection plates (46) are provided with clamping grooves (49), and the inner walls of the two groups of the clamping grooves (49) are clamped and connected with the surfaces on both sides of the two mounting blocks (41).

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