Connection structure and fan housing

Abstract

The present application discloses a connection structure and a fan casing, and relates to the technical field of fans; the present application comprises a ring, wherein a plurality of mounting frames distributed in a ring shape are arranged in an array inside the ring, a sleeve is rotatably arranged on the mounting frame, a screw rod is inserted into the inner thread of the sleeve, an arc block is connected to the end of the screw rod, an arc groove is provided on the inner wall of the arc block, a limiting groove is provided on the mounting frame, and a limiting block slidingly matched with the limiting groove is provided on the arc block; an adjusting member is arranged on the ring, which is used to adjust the synchronous rotation of a plurality of sleeves; a ring plate is used to be coaxially connected with a motor; the present application places the ring plate between a plurality of arc blocks, and adjusts the synchronous rotation of a plurality of sleeves by adjusting the adjusting member, so that a plurality of arc blocks can be adjusted to be synchronously close, a plurality of arc blocks are enclosed into a ring block, and a plurality of arc grooves are enclosed into an annular groove, so that the ring plate is clamped and fixed, and the installation or disassembly method is relatively simple and convenient.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a connection structure and a fan casing. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. There are many types of fans, axial flow fan is one of them. Axial flow fans are usually used in situations where the flow requirements are high and the pressure requirements are low. They can be used for ventilation or enhanced heat dissipation in metallurgy, chemical industry, light industry, food, medical equipment, mechanical equipment and civil buildings.

[0003] An axial flow fan is mainly composed of an impeller, a casing, an electric motor and other components. A bracket is arranged on the inner wall of the casing, the motor is arranged on the frame, and the impeller is arranged at the output shaft end of the motor. The bracket is generally welded to the casing, and the motor and the bracket are detachably connected. The connection between the motor and the bracket is generally through multiple bolts. When the motor needs to be debugged and repaired, multiple bolts need to be installed and disassembled, which makes installation and disassembly inconvenient. Therefore, the present application proposes a connection structure and a fan casing. Utility Model Content

[0004] The purpose of this application is to solve the problems in the above background. This application provides a connection structure and a fan housing.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] One of the purposes of this application is to propose a connection structure, including:

[0007] The ring has a plurality of mounting brackets arranged in an annular pattern in its internal array, a sleeve is rotatably arranged on the mounting bracket, a screw rod is inserted into the inner thread of the sleeve, an arc block is connected to the end of the screw rod, an arc groove is provided on the inner wall of the arc block, a limiting groove is provided on the mounting bracket, and a limiting block slidably matched with the limiting groove is provided on the arc block;

[0008] An adjusting member, arranged on the ring, for adjusting the synchronous rotation of a plurality of sleeves;

[0009] The ring plate is used for being coaxially connected with the motor, and the ring plate is engaged with a plurality of arc-shaped slots.

[0010] Furthermore, the adjusting member includes a plurality of rotating shafts, which are rotatably arranged on a plurality of mounting frames respectively. A bevel gear assembly is connected between the rotating shaft and the sleeve. Circular gears are fixedly arranged on the plurality of rotating shafts. An annular groove is provided on the inner wall of the ring. An adjusting ring is rotatably arranged in the annular groove. A gear ring is provided on the inner wall of the adjusting ring. The plurality of circular gears are meshed with the teeth of the gear ring.

[0011] Furthermore, both ends of the rotating shaft are provided with end caps, and the end caps are provided with slots.

[0012] Furthermore, the inner walls of the plurality of arc-shaped slots are provided with conical clamping blocks, the outer peripheral side of the ring plate is provided with a plurality of conical clamping grooves, and the plurality of conical clamping blocks are respectively engaged with the plurality of conical clamping grooves.

[0013] Furthermore, one end of the arc block is provided with an embedding groove, and the other end of the arc block is configured with an embedding block that is embedded in the embedding groove.

[0014] Furthermore, a plurality of insertion holes distributed in a circular array are provided in an array on one side of the adjustment ring, and an insertion rod cooperating with the insertion hole is movably inserted on the ring.

[0015] Furthermore, a limit plate is constructed at one end of the insertion rod away from the insertion hole, and a tension spring sleeved on the insertion rod is connected between the limit plate and the ring.

[0016] The second object of the present application is to provide a fan housing, including the above-mentioned connection structure and also including a wind tube, the ring is coaxially fixed on the inner wall of the wind tube, and the outer surface of the wind tube is provided with a bracket.

[0017] The beneficial effects of this application are as follows:

[0018] 1. In the present application, the ring plate is placed between several arc blocks, and several sleeves are adjusted to rotate synchronously through adjusting parts, so that several arc blocks can be adjusted to approach synchronously, several arc blocks are surrounded by a ring block, and several arc grooves are surrounded by an annular groove, so that the ring plate is clamped and fixed, and the installation or disassembly method is relatively simple and convenient.

[0019] 2. In the present application, it is only necessary to rotate the adjusting ring, and through the meshing of the circular gear and the gear ring, several rotating shafts can be driven to rotate synchronously, and then through the linkage of the bevel gear assembly, several sleeves can be driven to rotate synchronously, making installation or disassembly simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the connection structure of the present application;

[0021] Figure 2 is a three-dimensional structural cross-sectional view of the connection structure of the present application;

[0022] Figure 3 It is a partial three-dimensional structural diagram of the connection structure of the present application;

[0023] Figure 4 This application Figure 2 Enlarged view of point A in the middle;

[0024] Figure 5 This application Figure 2 Enlarged view of point B in the middle;

[0025] Figure 6 It is a three-dimensional structural diagram of the fan housing of the present application;

[0026] Figure 7 is a three-dimensional structural cross-sectional view of the fan housing of the present application;

[0027] Figure numerals: 1, ring; 2, mounting bracket; 3, sleeve; 4, screw; 5, arc block; 6, arc slot; 7, limit slot; 8, limit block; 9, adjustment member; 10, ring plate; 11, end cap; 12, slot; 13, conical block; 14, conical slot; 15, embedded groove; 16, embedded block; 17, socket; 18, plug rod; 19, limit plate; 20, tension spring; 21, air cylinder; 22, bracket; 901, rotating shaft; 902, bevel gear assembly; 903, circular gear; 904, annular groove; 905, adjusting ring; 906, gear ring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0029] like Figure 1-Figure 5 As shown, an embodiment of the present application proposes a connection structure, including:

[0030] The ring 1 has a plurality of mounting frames 2 arranged in a ring shape in an array inside thereof, a sleeve 3 is rotatably arranged on the mounting frame 2, a screw rod 4 is inserted into the inner thread of the sleeve 3, an arc block 5 is connected to the end of the screw rod 4, an arc groove 6 is provided on the inner wall of the arc block 5, a limiting groove 7 is provided on the mounting frame 2, and a limiting block 8 which slidably cooperates with the limiting groove 7 is provided on the arc block 5. Preferably, the ring 1 is used to be arranged on the inner wall of the fan casing, and the sleeve 3 is twisted to rotate, and the screw rod 4 can be driven to move under the cooperation of the thread and the sliding cooperation of the limiting block 8 and the limiting groove 7, thereby driving the arc block 5 to move, and twisting several sleeves 3 to rotate respectively can drive several arc blocks 5 to approach, so that several arc blocks 5 can be enclosed into a ring block;

[0031] The adjusting member 9 is arranged on the ring 1 and is used to adjust the synchronous rotation of the plurality of sleeves 3. By means of the arranged adjusting member 9, the rotation of the plurality of sleeves 3 can be synchronously adjusted, so that the adjustment efficiency is improved, and the plurality of arc blocks 5 are more conveniently and quickly enclosed into a ring block;

[0032] The ring plate 10 is used to be coaxially connected to the motor. The ring plate 10 is engaged with several arc grooves 6. When the ring plate 10 is connected to several arc blocks 5, the ring plate 10 is placed between the several arc blocks 5. The several sleeves 3 are adjusted to rotate synchronously by the adjusting member 9, so that the several arc blocks 5 are synchronously approached, so that the ring plate 10 is inserted into the several arc grooves 6. As the several arc blocks 5 gradually approach, the several arc blocks 5 are surrounded to form a ring block, and the several arc grooves 6 are surrounded to form an annular groove. The ring plate 10 is clamped in the annular groove. At the same time, the inner wall of the annular groove is in contact with and overlapped with the outer wall of the ring plate 10. The friction force is used to fix the ring plate 10. The overall structure of the device can fix or release the ring plate 10 by adjusting the several sleeves 3 to rotate synchronously by the adjusting member 9. The installation or disassembly method is relatively convenient, thereby improving practicality.

[0033] like Figure 5 As shown, in some embodiments, the adjusting member 9 includes a plurality of rotating shafts 901, and the plurality of rotating shafts 901 are rotatably arranged on a plurality of mounting frames 2, a bevel gear assembly 902 is connected between the rotating shaft 901 and the sleeve 3, the bevel gear assembly 902 includes a transmission bevel gear fixedly arranged on the rotating shaft 901, a driven bevel gear meshing with the teeth of the transmission bevel gear is fixedly arranged at the end of the sleeve 3, a plurality of rotating shafts 901 are fixedly provided with circular gears 903, an annular groove 904 is provided on the inner wall of the ring 1, an adjusting ring 905 is rotatably arranged in the annular groove 904, and the inner wall of the adjusting ring 905 is provided with a driven bevel gear meshing with the teeth of the transmission bevel gear. A gear ring 906 is provided on the wall, and several circular gears 903 are meshed with the teeth of the gear ring 906. When adjusting the rotation of several sleeves 3, the adjusting ring 905 is rotated to drive the gear ring 906 to rotate. Through the meshing of the teeth of the gear ring 906 and several circular gears 903, several rotating shafts 901 are driven to rotate synchronously. When the rotating shaft 901 rotates, the sleeve 3 is driven to rotate through the linkage of the bevel gear assembly 902. The overall structure of the device only needs to rotate the adjusting ring 905 to drive several sleeves 3 to rotate synchronously, and the adjustment method is relatively simple and convenient.

[0034] like Figure 5 As shown, in some embodiments, end caps 11 are provided at both ends of the rotating shaft 901, and a slot 12 is opened on the end cap 11. Preferably, the shape of the slot 12 is not limited, and it can be a rectangular slot or a cross-shaped slot. Through the provided end caps 11 and the opened slots 12, when the adjustment ring 905 needs to be rotated, a screwdriver or a pin can be used. It only needs to be plugged into one of the end caps 11 and the rotating shaft 901 connected thereto is rotated, so that several rotating shafts 901 can be driven to rotate synchronously, and the adjustment method of driving the adjustment ring 905 to rotate is more convenient and quick.

[0035] like Figure 3As shown, in some embodiments, the inner walls of several arc-shaped grooves 6 are provided with conical blocks 13, and the outer peripheral side of the ring plate 10 is provided with several conical grooves 14, and the several conical blocks 13 are respectively engaged with the several conical grooves 14. When several arc-shaped blocks 5 are close to each other to buckle the ring plate 10, the several conical grooves 14 are respectively engaged with the several conical blocks 13, so that the ring plate 10 is fixed more firmly, avoiding the ring plate 10 from rotating loose due to the stress of motor vibration, thereby improving the stability of the installation.

[0036] like Figure 3 As shown, in some embodiments, one end of the arc block 5 is provided with an embedding groove 15, and the other end of the arc block 5 is constructed with an embedding block 16 embedded in the embedding groove 15. When several arc blocks 5 are close to each other, several arc blocks 5 are overlapped end to end in sequence, and the embedding block 16 is embedded in the corresponding embedding groove 15, so that the several arc blocks 5 are connected more closely and overlap and support each other, further improving the stability of the fixation of the ring plate 10.

[0037] like Figure 4 As shown, in some embodiments, a plurality of sockets 17 distributed in a circular array are provided on one side of the adjustment ring 905, and an insertion rod 18 that cooperates with the insertion hole 17 is movably inserted on the ring 1. When adjusting the position of the arc block 5, the insertion rod 18 is first pulled out of the socket 17, and then the adjustment ring 905 is rotated. When the position of the arc block 5 is adjusted and engaged with the ring plate 10, the insertion rod 18 is inserted into the corresponding socket 17, thereby locking the adjustment ring 905 and restricting it from rotating, thereby further improving the stability of the fixation of the ring plate 10.

[0038] like Figure 4 As shown, in some embodiments, a limit plate 19 is constructed at one end of the insertion rod 18 away from the socket 17, and a tension spring 20 is connected between the limit plate 19 and the ring 1 and is sleeved on the insertion rod 18. Since the motor generates vibration force when running, the vibration force will be transmitted to the ring 1. Through the setting of the limit plate 19 and the tension spring 20, the elastic force of the tension spring 20 pulls the insertion rod 18, making it less likely to be affected by the stress of the vibration and detach from the socket 17, thereby further improving the stability of the ring plate 10 after being fixed.

[0039] like Figure 6 and Figure 7 As shown, an embodiment of the present application proposes a fan housing, including the above-mentioned connection structure, and also includes a wind tube 21. The ring 1 is coaxially fixed to the inner wall of the wind tube 21, and a bracket 22 is provided on the outer surface of the wind tube 21. Preferably, both ends of the wind tube 21 are constructed with flanges, which can be used for connecting to the pipeline. Through the provided bracket 22, it can also be placed horizontally on the ground, and the usage is more flexible.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection structure, characterized in that: The invention comprises a ring (1), wherein a plurality of mounting frames (2) are arranged in an array in an annular shape inside the ring, a sleeve (3) is rotatably arranged on the mounting frame (2), a screw rod (4) is inserted into the inner thread of the sleeve (3), an arc block (5) is connected to the end of the screw rod (4), an arc groove (6) is provided on the inner wall of the arc block (5), a limiting groove (7) is provided on the mounting frame (2), and a limiting block (8) slidably matched with the limiting groove (7) is provided on the arc block (5); an adjusting member (9) is arranged on the ring (1) and is used for adjusting the synchronous rotation of the plurality of sleeves (3); and a ring plate (10) is used for being coaxially connected to a motor, and the ring plate (10) is engaged with the plurality of arc grooves (6).

2. The connection structure according to claim 1, characterized in that: The adjusting member (9) comprises a plurality of rotating shafts (901), the plurality of rotating shafts (901) being rotatably mounted on a plurality of mounting frames (2), a bevel gear assembly (902) being connected between the rotating shafts (901) and the sleeve (3), a circular gear (903) being fixedly mounted on the plurality of rotating shafts (901), an annular groove (904) being provided on the inner wall of the ring (1), an adjusting ring (905) being rotatably mounted in the annular groove (904), a gear ring (906) being provided on the inner wall of the adjusting ring (905), and the plurality of circular gears (903) being meshed with the teeth of the gear ring (906).

3. The connection structure according to claim 2, characterized in that: End caps (11) are provided at both ends of the rotating shaft (901), and slots (12) are provided on the end caps (11).

4. The connection structure according to claim 1, characterized in that: The inner walls of the plurality of arc-shaped clamping grooves (6) are each provided with a conical clamping block (13), the outer peripheral side of the ring plate (10) is provided with a plurality of conical clamping grooves (14), and the plurality of conical clamping blocks (13) are respectively engaged with the plurality of conical clamping grooves (14).

5. The connection structure according to claim 1, characterized in that: One end of the arc-shaped block (5) is provided with an embedding groove (15), and the other end of the arc-shaped block (5) is provided with an embedding block (16) that is embedded and matched with the embedding groove (15).

6. The connection structure according to claim 2, characterized in that: A plurality of insertion holes (17) distributed in a circular array are arranged in an array on one side of the adjustment ring (905), and an insertion rod (18) that cooperates with the insertion holes (17) is movably inserted on the ring (1).

7. The connection structure according to claim 6, characterized in that: A limit plate (19) is formed at one end of the insertion rod (18) away from the insertion hole (17), and a tension spring (20) sleeved on the insertion rod (18) is connected between the limit plate (19) and the ring (1).

8. A fan housing, characterized in that: It comprises the connection structure according to any one of claims 1 to 7, and further comprises a wind tube (21), wherein the ring (1) is coaxially fixed to the inner wall of the wind tube (21), and a bracket (22) is provided on the outer surface of the wind tube (21).

Images