Nested entrance clock sealing structure

Abstract

The utility model relates to the technical field of entrance clock sealing, and discloses a nested entrance clock sealing structure which comprises an entrance clock and a fan body, an air inlet is formed in the front side of the fan body, the entrance clock is fixedly connected into the air inlet, and a sealing mechanism is arranged between the entrance clock and the fan body. The sealing mechanism comprises a first groove, a sealing ring, a second groove and an annular spring, the first groove is formed in the outer side of the inlet clock, the sealing ring is fixedly connected to the interior of the first groove, the second groove is formed in the fan body, the annular spring is fixedly connected to the top end of the interior of the second groove, and the inner side of the annular spring abuts against the outer side of the sealing ring; the sealing ring is used for sealing the joint of the inlet clock and the fan body, so that the leakproof effect of the fan body is improved; and when the sealing effect of the sealing ring becomes poor along with the increase of the service time, the sealing effect of the sealing ring is ensured by arranging the annular spring, so that the anti-leakage effect of the fan body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of inlet bell sealing, in particular to a nested inlet bell sealing structure. Background Art

[0002] A fan is a mechanical device that converts the mechanical energy generated by air or gas through a rotating mechanism into airflow energy. An inlet bell is typically located between the fan's air inlet and the ventilation duct. The inlet bell typically consists of a bell-shaped channel and a connecting plate. Its primary function is to ensure that fluid enters the fan's impeller with minimal loss and uniformly distributed pressure and velocity. To ensure this, a sealing structure is typically installed between the inlet bell and the fan.

[0003] The existing sealing structure usually has an O-ring between the fan and the inlet bell. As the use time increases, the sealing effect of the O-ring deteriorates, resulting in a decrease in the anti-leakage effect of the fan. Utility Model Content

[0004] The purpose of the present utility model is to provide a nested inlet bell sealing structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nested inlet bell sealing structure, comprising an inlet bell and a fan body, an air inlet being provided on the front side of the fan body, the inlet bell being fixedly connected to the inside of the air inlet, a sealing mechanism being provided between the inlet bell and the fan body, the sealing mechanism comprising a first groove, a sealing ring, a second groove and an annular spring, a first groove being provided on the outside of the inlet bell, a sealing ring being fixedly connected to the inside of the first groove, a second groove being provided on the inside of the fan body, an annular spring being fixedly connected to the inner top end of the second groove, and the inner side of the annular spring being in contact with the outer side of the sealing ring.

[0006] As a further improvement to the above solution, a snap-in groove is provided on the front side of the fan body, a snap-in block is fixedly connected to the rear side of the inlet bell, the snap-in groove is matched with the snap-in block, and a seal is fixedly connected to the outer side of the snap-in block.

[0007] As a further improvement to the above solution, the inlet bell includes an air inlet end, an air outlet end, a connecting plate and a mounting plate. The air outlet end is integrally formed on the rear side of the air inlet end and the air inlet end tapers to the air outlet end in a streamlined shape. The connecting plate is integrally formed on the front side of the air inlet end, and the mounting plate is integrally formed on the rear side of the connecting plate.

[0008] As a further improvement to the above solution, the mounting plate is fixedly connected to the front side of the fan body by a plurality of bolts, and the plurality of bolts are evenly arranged in a circumferential direction.

[0009] As a further improvement to the above solution, a plurality of first mounting holes are evenly and circumferentially formed on the mounting plate, and the plurality of first mounting holes are all matched with the bolts.

[0010] As a further improvement to the above solution, a plurality of second mounting holes are evenly and circumferentially formed on the front side of the fan body, and the plurality of second mounting holes are matched with the bolts.

[0011] As a further improvement to the above solution, an air outlet pipe is fixedly connected to the left side of the top end of the fan body, and an air outlet is opened on the left side of the air outlet pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a sealing mechanism, which includes a first groove, a sealing ring, a second groove and an annular spring. The first groove is provided on the outside of the inlet bell, and the sealing ring is fixedly connected to the inside of the first groove. The second groove is provided on the inside of the fan body, and the top end of the inner part of the second groove is fixedly connected to the annular spring. The inner side of the annular spring abuts against the outer side of the sealing ring, and the connection between the inlet bell and the fan body is sealed by the sealing ring, thereby improving the anti-leakage effect of the fan body. When the sealing effect of the sealing ring deteriorates with the increase of usage time, the annular spring exerts an inward force on the sealing ring, so that the sealing ring is tightly connected to the first groove, thereby ensuring the sealing effect of the sealing ring, thereby ensuring the anti-leakage effect of the fan body.

[0014] The utility model is provided with a snap-in groove on the front side of the fan body, a snap-in block is fixedly connected to the rear side of the inlet bell, the snap-in groove and the snap-in block are matched with each other, and a sealing member is fixedly connected to the outer side of the snap-in block. The sealing member is used to seal the connection between the snap-in groove and the snap-in block, thereby achieving a secondary sealing effect and further improving the anti-leakage effect of the fan body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a front view of the structure of the utility model;

[0018] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0019] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the blower body of the utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the entrance clock in the present invention from a first perspective;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the entrance clock from a second perspective of the present invention.

[0023] In the figure: 1. Inlet bell; 101. Air inlet end; 102. Air outlet end; 103. Connecting plate; 104. Mounting plate; 2. Fan body; 3. Air inlet; 4. Sealing mechanism; 401. First groove; 402. Sealing ring; 403. Second groove; 404. Annular spring; 5. Snap-fit ​​groove; 6. Snap-fit ​​block; 7. Sealing element; 8. Bolt; 9. First mounting hole; 10. Second mounting hole; 11. Air outlet duct; 12. Air outlet. DETAILED DESCRIPTION

[0024] 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. Example 1

[0025] A nested inlet bell sealing structure, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7As shown, it includes an inlet bell 1 and a fan body 2. An air outlet pipe 11 is fixedly connected to the left side of the top of the fan body 2. An air outlet 12 is provided on the left side of the air outlet pipe 11. The pipe is fixedly connected to the left side of the air outlet 12. The gas generated by the fan body 2 when it is working enters the air outlet pipe 11 and is discharged into the pipe through the air outlet 12. An air inlet 3 is provided on the front side of the fan body 2. An inlet bell 1 is fixedly connected to the inside of the air inlet 3. The inlet bell 1 includes an air inlet end 101, an air outlet end 102, a connecting plate 103 and a mounting plate 104. The air outlet end 102 is integrally formed on the rear side of the air inlet end 101 and the air inlet end 101 tapers to the air outlet end 102 in a streamlined shape. The front side of the air inlet end 101 is integrally formed with a connecting plate 103, and the rear side of the connecting plate 103 is integrally formed with a mounting plate 104. A sealing mechanism 4 is provided between the inlet bell 1 and the fan body 2. The sealing mechanism 4 includes a first groove 401, a sealing ring 402, a second groove 403 and an annular spring 404. A first groove 401 is provided on the outside of the inlet bell 1. A sealing ring 402 is fixedly connected to the inside of the first groove 401. The sealing ring 402 is an O-ring made of rubber. A second groove 403 is provided on the inside of the fan body 2. An annular spring 404 is fixedly connected to the top of the inner side of the second groove 403. When connecting the inlet bell 1, the sealing ring 402 is sleeved on the inside of the first groove 401 and the inlet bell 1 is inserted into the air inlet 3 of the fan body 2. During the insertion process, the sealing ring 402 is squeezed into the first groove 401 until the rear side of the mounting plate 104 and the front side of the fan body 2 are aligned. The first mounting hole 9 and the second mounting hole 10 are in contact with each other, and the first mounting hole 9 and the second mounting hole 10 are opposite to each other, and the first mounting hole 9 and the second mounting hole 10 are connected by the bolt 8, so that the inlet bell 1 is fixedly connected to the front side of the fan body 1. At this time, the first groove 401 is opposite to the second groove 403, and the inner side of the annular spring 404 is in contact with the outer side of the sealing ring 402. The connection between the inlet bell 1 and the fan body 2 is sealed by the sealing ring 402, thereby improving the anti-leakage effect of the fan body 2; when the sealing effect of the sealing ring 402 deteriorates with the increase of the use time, the annular spring 404 exerts an inward force on the sealing ring 402, so that the sealing ring 402 is tightly connected to the first groove 401, thereby ensuring the sealing effect of the sealing ring 402, thereby ensuring the anti-leakage effect of the fan body 2.

[0026] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7As shown, the mounting plate 104 is fixedly connected to the front side of the fan body 2 via a plurality of bolts 8, which are evenly arranged around the circumference. The mounting plate 104 is provided with a plurality of first mounting holes 9 evenly arranged around the circumference, each of which is configured to match the bolts 8. The front side of the fan body 2 is provided with a plurality of second mounting holes 10 evenly arranged around the circumference, each of which is configured to match the bolts 8, such that the first mounting holes 9 and the second mounting holes 10 are opposite each other. The first mounting holes 9 and the second mounting holes 10 are connected via the bolts 8, thereby fixing the inlet bell 1 to the front side of the fan body 1.

[0027] When the embodiment 1 is working, when the inlet bell 1 is connected, the sealing ring 402 is placed inside the first groove 401, and the inlet bell 1 is inserted into the air inlet 3 of the fan body 2. During the insertion process, the sealing ring 402 is squeezed into the first groove 401 until the rear side of the mounting plate 104 contacts the front side of the fan body 2, and the first mounting hole 9 and the second mounting hole 10 are opposite to each other. The first mounting hole 9 and the second mounting hole 10 are connected by the bolt 8, so that the inlet bell 1 is fixedly connected to the front side of the fan body 1. At this time, the first groove 40 1 is opposite to the second groove 403, the outer side of the sealing ring 402 is in conflict with the inner side of the annular spring 404, and the connection between the inlet bell 1 and the fan body 2 is sealed by the sealing ring 402, thereby improving the anti-leakage effect of the fan body 2; when the sealing effect of the sealing ring 402 deteriorates with the increase of the use time, the annular spring 404 exerts an inward force on the sealing ring 402, so that the sealing ring 402 is tightly connected with the first groove 401, thereby ensuring the sealing effect of the sealing ring 402, thereby ensuring the anti-leakage effect of the fan body 2. Example 2

[0028] Example 2 is based on Example 1, as Figure 4 、 Figure 5 、 Figure 7 As shown, a snap-in groove 5 is provided on the front side of the fan body 2, and a snap-in block 6 is fixedly connected to the rear side of the inlet bell 1. The snap-in groove 5 and the snap-in block 6 are matched with each other, and a seal 7 is fixedly connected to the outside of the snap-in block 6. The seal 7 is made of rubber material, which connects the snap-in groove 5 and the snap-in block 6. The connection between the snap-in groove 5 and the snap-in block 6 is sealed by the seal 7, which has the effect of secondary sealing, thereby further improving the anti-leakage effect of the fan body.

[0029] When Example 2 is working, when the inlet bell 1 is fixedly connected to the front side of the fan body 1, the clamping block 6 is clamped into the clamping groove 5. At this time, the sealing member 7 is located between the clamping block 6 and the clamping groove 5 and fits with the clamping groove 5. The connection between the clamping groove 5 and the clamping block 6 is sealed by the sealing member 7, which has the effect of secondary sealing, thereby further improving the anti-leakage effect of the fan body.

[0030] 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 nested inlet bell sealing structure, comprising an inlet bell (1) and a fan body (2), characterized in that: An air inlet (3) is provided on the front side of the fan body (2), the interior of the air inlet (3) is fixedly connected to the inlet bell (1), a sealing mechanism (4) is provided between the inlet bell (1) and the fan body (2), the sealing mechanism (4) comprising a first groove (401), a sealing ring (402), a second groove (403) and an annular spring (404), a first groove (401) is provided on the outside of the inlet bell (1), the interior of the first groove (401) is fixedly connected to the sealing ring (402), a second groove (403) is provided on the inside of the fan body (2), the inner top end of the second groove (403) is fixedly connected to the annular spring (404), and the inner side of the annular spring (404) abuts against the outer side of the sealing ring (402).

2. The nested inlet bell sealing structure according to claim 1, characterized in that: A snap-in groove (5) is provided on the front side of the fan body (2), a snap-in block (6) is fixedly connected to the rear side of the inlet bell (1), the snap-in groove (5) is matched with the snap-in block (6), and a sealing member (7) is fixedly connected to the outer side of the snap-in block (6).

3. The nested inlet bell sealing structure according to claim 1, characterized in that: The inlet bell (1) comprises an air inlet end (101), an air outlet end (102), a connecting plate (103) and a mounting plate (104); the air outlet end (102) is integrally formed on the rear side of the air inlet end (101) and the air inlet end (101) tapers to the air outlet end (102) in a streamlined manner; the connecting plate (103) is integrally formed on the front side of the air inlet end (101); and the mounting plate (104) is integrally formed on the rear side of the connecting plate (103).

4. The nested inlet bell sealing structure according to claim 3, characterized in that: The mounting plate (104) is fixedly connected to the front side of the fan body (2) via a plurality of bolts (8), and the plurality of bolts (8) are evenly arranged in a circumferential direction.

5. The nested inlet bell sealing structure according to claim 4, characterized in that: A plurality of first mounting holes (9) are evenly and circumferentially formed on the mounting plate (104), and the plurality of first mounting holes (9) are matched with the bolts (8).

6. The nested inlet bell sealing structure according to claim 5, characterized in that: A plurality of second mounting holes (10) are evenly and circumferentially formed on the front side of the fan body (2), and the plurality of second mounting holes (10) are matched with the bolts (8).

7. The nested inlet bell sealing structure according to claim 1, characterized in that: An air outlet pipe (11) is fixedly connected to the left side of the top end of the fan body (2), and an air outlet (12) is provided on the left side of the air outlet pipe (11).

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