Aerator with impeller convenient to install

Abstract

An aerator facilitating installation of an impeller is provided with an inner ring and an outer ring, one of the inner ring and the outer ring is fixed to the impeller, the other is fixed to a rotating shaft of the impeller, and the inner ring is sleeved with the outer ring so that the inner ring and the outer ring can be located on the same axis. A clamping groove is fixed to one of the inner ring and the outer ring, an inserting piece inserted into the clamping groove is fixed to the other of the inner ring and the outer ring, and the shape of the clamping groove limits the inserting piece to be inserted into or withdrawn from the clamping groove only in the circumferential direction of the outer ring or the inner ring, so that after the inserting piece is inserted into the clamping groove, the degree of freedom of relative movement of the impeller and the rotating shaft in the axis direction is restrained by the clamping groove and the inserting piece. One of the inner ring and the outer ring is provided with a positioning hole, and the other is movably connected with a bolt which is inserted into the positioning hole to restrain the degree of freedom of relative rotation of the impeller and the rotating shaft. Compared with the prior art of flange connection, the aerator has the advantages that the tool-free quick disassembly is realized, the trouble of adjusting the coaxiality is saved, and compared with the existing aerator, the efficiency of assembling the rotating shaft and the impeller in a farm is remarkably improved, and the mounting time cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oxygen -increasing machine for aquaculture especially the connection of the rotating shaft and the impeller of oxygen -increasing machine. BACKGROUND

[0002] The main structure of the oxygen -increasing machine for aquaculture includes the impeller of agitating water surface and the rotating shaft of driving the impeller rotation. In order to facilitate transportation, the impeller and the rotating shaft of the oxygen -increasing machine need to be packed separately, and are assembled together in the aquaculture farm. The impeller and the rotating shaft of the existing oxygen -increasing machine are connected by flange, one of which is fixed on the impeller, and the other is fixed on the rotating shaft, and the two flanges are locked and fixed by screws. It usually needs four screws to connect a pair of flanges. The average time of installation is about 1-2 minutes per screw by using manual or electric tool, and the skilled worker will be faster, and according to the skilled worker, it needs 6 minutes to install four screws, and if there are 50 oxygen -increasing machines in an aquaculture farm, it needs to tighten 200 screws (not including the installation of other accessories), and only the time used for connecting the rotating shaft and the impeller is 5 hours. Therefore, the existing oxygen -increasing machine has the problems of low assembly efficiency and high installation labor cost. SUMMARY

[0003] The utility model aims at providing an oxygen -increasing machine convenient to install impeller to improve the assembly efficiency of oxygen -increasing machine and reduce installation labor cost.

[0004] The utility model is realized in this way: the oxygen -increasing machine convenient to install impeller includes the impeller of agitating water surface and the rotating shaft of driving the impeller rotation, and especially, is equipped with inner ring and outer ring, and the inner ring and the outer ring are fixed on the rotating shaft and are located on the same axis alternatively, and the other party is fixed on the impeller and is located on the same axis, and the inner ring is sleeved in the outer ring so that the inner ring and the outer ring are located on the same axis, the inner ring and the outer ring are fixed with the clamping groove alternatively, and the other party is fixed with the plug -in insert, the shape of clamping groove limits that the plug -in insert can only be inserted and withdrawn from the clamping groove along the circumferential direction of the outer ring or the inner ring, so that when the plug -in insert is inserted into the clamping groove, the freedom degree of relative movement of the impeller and the rotating shaft in the axial direction is restrained by the clamping groove and the plug -in insert, the inner ring and the outer ring are provided with the positioning hole alternatively, and the other party is movably connected with the bolt, in the state that the plug -in insert is inserted into the clamping groove, the bolt can be inserted into the positioning hole, and in the state that the bolt is inserted into the positioning hole, the freedom degree of relative rotation of the impeller and the rotating shaft is restrained by the bolt and the positioning hole.

[0005] As the best implementation, the bolt is connected with the spring, and the bolt is inserted into the positioning hole under the action of the spring.

[0006] As the best implementation, the bolt is connected with the handle.

[0007] The utility model discloses the advantages are: 1, the inner ring and outer ring can be fixed in the rotating shaft and impeller in factory in advance, when assembling the oxygen -increasing machine in the breeding farm, only need to cover the inner ring in the outer ring, slightly rotate the impeller or rotating shaft with hand, make the plug -in insert card slot and the bolt insert positioning hole and complete the connection of rotating shaft and impeller, the whole connection process does not need to use the tool, and only need to operate reversely to separate the impeller and rotating shaft, have the advantages of tool -free quick installation and disassembly, 2, only need to cover the inner ring in the outer ring, and rotating shaft and impeller are on the same axis naturally, compared with the mode of flange connection, the trouble of adjusting flange coaxiality is saved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is structural schematic diagram of the utility model embodiment one;

[0009] Figure 2 It is Figure 1 A part enlarged view of;

[0010] Figure 3 It is the schematic diagram of separating of rotating shaft and impeller of embodiment one;

[0011] Figure 4 It is the schematic diagram of plug -in insert card slot, and this drawing omits the impeller, and partially cuts open the outer ring;

[0012] Figure 5 It is the schematic diagram of plug -in exit card slot, and this drawing omits the impeller, and partially cuts open the outer ring;

[0013] Figure 6 It is the schematic diagram of separating of bolt and spring from spring seat;

[0014] Figure 7 It is structural schematic diagram of embodiment two;

[0015] Figure 8 It is Figure 7 B part enlarged view of;

[0016] Figure 9 It is Figure 8 The explosion map of;

[0017] Figure 10 It is structural schematic diagram of embodiment three;

[0018] Figure 11 It is Figure 10 C part enlarged view of;

[0019] Figure 12 is Figure 11 an exploded view;

[0020] Figure 13 is a structural schematic diagram of Example Four;

[0021] Figure 14 is a close-up view of D of Figure 13

[0022] Figure 15 is an exploded view of Figure 14 DETAILED DESCRIPTION

[0023] For the purpose of better understanding the present application, the following will give a more comprehensive description of the present application through examples. The examples give the implementation manners of the present application. However, the present application can be realized in many different forms and is not limited to the implementation manners described in the examples. Example One

[0024] At the same time, referring to Figure 1 , Figure 2 , the oxygenator facilitating installation of the impeller comprises an impeller 1 agitating the water surface and a rotating shaft 2 driving the impeller to rotate. An inner ring 3 is fixed on the rotating shaft 2, and the inner ring 3 and the rotating shaft 2 are located on the same axis. An outer ring 4 is fixed on the impeller 1, and the outer ring 4 and the impeller 1 are located on the same axis. The inner ring 3 is sleeved in the outer ring 4, and the hole shaft cooperation of the two makes the inner ring 3 and the outer ring 4 located on the same axis, thereby ensuring that the impeller 1 and the rotating shaft 2 are located on the same axis. The fixing manner of the inner ring 3 on the rotating shaft 2 can adopt conventional fixing manners such as key connection, screw connection, welding and integral molding. The fixing manner of the outer ring 4 and the impeller 1 can adopt conventional fixing manners such as screw connection, welding and integral molding. Referring to Figure 3 , the inner ring 3 is fixed with a clamping groove 5, and the outer ring 4 is fixed with an insert 6 inserted into the clamping groove 5. In this embodiment, four clamping grooves 5 of the same shape are uniformly distributed along the circumferential direction of the inner ring 3, and correspondingly, four inserts 6 of the same shape are uniformly distributed along the circumferential direction of the outer ring 4. As shown in Figure 3 , Figure 4 , the shape of the clamping groove 5 limits the insert 6 to be inserted into and withdrawn from the clamping groove 5 only along the circumferential direction of the inner ring 3, so that when the insert 6 is inserted into the clamping groove 5, the freedom of the relative movement of the inner ring 3 and the outer ring 4 in the axial direction is constrained by the clamping groove 5 and the insert 6, that is, the freedom of the relative movement of the impeller 1 and the rotating shaft 2 in the axial direction is constrained by the clamping groove 5 and the insert 6. The fixing manner of the clamping groove 5 and the inner ring 3 can be but is not limited to welding and integral molding. The fixing manner of the insert 6 and the outer ring 4 can be but is not limited to welding and integral molding. Referring to Figure 3 , the outer ring 4 is provided with a positioning hole 7, and the inner ring 3 is movably connected with a latch 8. In the state that the insert 6 is inserted into the clamping groove 5, as​​Figure 4 As shown, the plug 8 can be inserted into the positioning hole 7. In the state that the plug 8 is inserted into the positioning hole 7, the freedom of the inner ring 3 and the outer ring 4 to rotate relative to each other around the axis is restricted by the plug 8 and the positioning hole 7, that is, the freedom of the impeller 1 and the rotating shaft 2 to rotate relative to each other around the axis is restricted by the plug 8 and the positioning hole 7.

[0025] Since the freedom of the impeller 1 and the rotating shaft 2 to move relative to each other along the axis and the freedom of the impeller 1 and the rotating shaft 2 to rotate relative to each other around the axis are both restricted, the impeller 1 and the rotating shaft 2 are connected into an integrated whole through the inner ring 3 and the outer ring 4. When it is needed to disassemble the impeller 1 and the rotating shaft 2, first, the plug 8 is pulled out of the positioning hole 7 as shown, and then the impeller 1 or the rotating shaft 2 is slightly rotated by hand so that the plug 6 is pulled out of the clamping groove 5 as shown, and then the inner ring 3 and the outer ring 4 can be separated along the axial direction, thereby separating the impeller 1 and the rotating shaft 2 along the axial direction and completing the disassembly. The reverse operation can assemble the rotating shaft 2 and the impeller 1 together. The whole disassembly and assembly process does not need to use tools. Figure 4 Figure 5 As shown, the plug 8 is pulled out of the positioning hole 7, and then the impeller 1 or the rotating shaft 2 is slightly rotated by hand so that the plug 6 is pulled out of the clamping groove 5 as shown, and then the inner ring 3 and the outer ring 4 can be separated along the axial direction, thereby separating the impeller 1 and the rotating shaft 2 along the axial direction and completing the disassembly. The reverse operation can assemble the rotating shaft 2 and the impeller 1 together. The whole disassembly and assembly process does not need to use tools.

[0026] As the best embodiment, referring to Figure 3 , Figure 6 , the plug 8 of the embodiment is connected with the spring 9, the plug 8 and the spring 9 are installed in the spring seat 10, and the spring seat 10 is integrally formed with the inner ring 3. The spring 9 of the embodiment is a compression spring. Under the action of the spring 9, the plug 8 extends out of the spring seat 10 and is inserted into the positioning hole 7 as shown. Figure 4 The plug 8 is connected with the handle 11, which is convenient for the plug 8 to be pushed by hand. The handle 11 and the plug 8 can be integrally formed. Embodiment Two

[0027] Referring to Figures 7 to 9 , the clamping groove 5 of the embodiment is fixed on the outer ring 4, and the clamping groove 5 is integrally formed with the outer ring 4. The plug 6 inserted into the clamping groove 5 is fixed on the inner ring 3, and the plug 6 is integrally formed with the inner ring 3. The embodiment is uniformly provided with four clamping grooves 5 along the circumferential direction of the outer ring 4, which are approximately shaped but different in size, and correspondingly, the embodiment is uniformly provided with four plugs 6 along the circumferential direction of the inner ring 3, which are approximately shaped but different in size. Although the four clamping grooves 5 are not the same in shape, the shape of each clamping groove 5 limits the corresponding plug 6 to be inserted into and pulled out of the clamping groove 5 along the circumferential direction of the outer ring 4.

[0028] ​The outer ring 4 is movably connected with a latch 8. The latch 8 is fixed on a spring 9. The spring 9 in this embodiment is a spring sheet fixed on the outer ring 4. The latch 8 is inserted into a positioning hole 7 provided on the insert 6 under the action of the spring 9. It should be noted that since the insert 6 is fixed integrally with the inner ring 3, the positioning hole 7 provided on the insert is equivalent to the positioning hole provided on the inner ring 3. In the state that the latch 8 is inserted into the positioning hole 7, the relative rotation freedom of the inner ring 3 and the outer ring 4 around the axis is restricted by the latch 8 and the positioning hole 7, that is, the relative rotation freedom of the impeller 1 and the rotating shaft 2 is restricted by the latch 8 and the positioning hole 7.

[0029] The unexplained part of this embodiment can refer to embodiment one. Embodiment three

[0030] Referring to Figures 10 to 12 , the layout structure of the clamping groove 5 and the insert 6 in this embodiment is similar to that in embodiment two, except that the positioning hole 7 in this embodiment is provided in the clamping groove 5, and the latch 8 and the spring 9 are installed in the insert 6. Since the clamping groove 5 is fixed integrally with the outer ring 4, the positioning hole 7 provided in the clamping groove 5 is equivalent to the positioning hole provided on the outer ring 4. Since the insert 6 is fixed integrally with the inner ring 3, the installation of the latch 8 in the insert is equivalent to the connection of the latch 8 with the inner ring 3. The latch 8 is connected with a handle 11, and the handle 11 extends out of a sliding hole 12 provided on the insert 6, which facilitates the manual operation of the latch 8. A bolt in threaded connection with the latch 8 can be used as the handle 11.

[0031] The unexplained part of this embodiment can refer to embodiment one and embodiment two. Embodiment four

[0032] Referring to Figures 13 to 15 , this embodiment is equivalent to a mixture of the previous three embodiments. The layout structure of the latch 8 and the positioning hole 7 in this embodiment is similar to that in embodiment one, the layout structure of the clamping groove 5 and the insert 6 is similar to that in embodiment two, and the structure of the handle 11 connected with the latch 8 is similar to that in embodiment three. The handle 11 extends out of a sliding hole 13 provided on a spring seat 10. The unexplained part of this embodiment can refer to embodiments one to three.

[0033] It should be noted that the inner ring described in the utility model can also be fixed on the impeller, and correspondingly, the outer ring is fixed on the rotating shaft. For example, an end plate can be fixed on the end face of the rotating shaft, the outer ring is fixed on one side of the end plate, and the inner ring is fixed on the top of the impeller and is sleeved into the outer ring 4.

[0034] It should be noted that the outer ring can not have an obvious ring body in appearance. For example, Figure 2 The outer ring 4 shown in the figure can not protrude from the top of the impeller, but can be flush with the top of the impeller. In this case, although the protruding ring body cannot be seen on the top of the impeller, the top of the impeller constitutes the outer ring described in the utility model.

[0035] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent protection scope. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An aerator that facilitates the installation of an impeller, comprising an impeller for agitating the water surface and a shaft for driving the impeller to rotate, characterized in that: The inner ring and the outer ring are fixed on the rotating shaft or the impeller, and the other is fixed on the impeller or the rotating shaft, and the inner ring is sleeved in the outer ring; the inner ring and the outer ring are fixed with a clamping groove or a plug-in part, and the other is fixed with a plug-in part, the shape of the clamping groove limits the plug-in part to be inserted and withdrawn from the clamping groove along the circumferential direction of the outer ring or the inner ring, so that when the plug-in part is inserted into the clamping groove, the freedom of the relative movement of the impeller and the rotating shaft in the axial direction is constrained by the clamping groove and the plug-in part; the inner ring and the outer ring are provided with a positioning hole or a movable connection with a bolt, and the bolt can be inserted into the positioning hole in the state that the plug-in part is inserted into the clamping groove, and the freedom of the relative rotation of the impeller and the rotating shaft is constrained by the bolt and the positioning hole.

2. The oxygenating machine of claim 1, wherein: The bolt is connected with a spring, and the bolt is inserted into the positioning hole under the action of the spring.

3. The oxygenating machine of claim 2, wherein the oxygenating machine is characterized by: The bolt is connected with a handle.

Images