Wave making structure and wave making device

Abstract

The utility model discloses a wave making structure and a wave making device.The wave making structure is applied to the wave making device, the wave making device comprises a wave making pump, the wave making pump comprises a shell and a wave making assembly installed on the shell, and the wave making pump comprises a net cover and an adjusting piece; the net cover is provided with a water passing cavity, and the net cover is connected with the shell and covers the outer portion of the wave making assembly so that the wave making assembly can be located in the water passing cavity; the adjusting piece is installed on the side, away from the shell, of the mesh enclosure and provided with a water outlet channel communicating with the water passing cavity. Wherein the adjusting piece can be rotationally connected with the mesh enclosure through nesting fit; or the adjusting part is rotationally connected with the mesh enclosure through a connecting structure so as to adjust the opening orientation of the water outlet channel, the adjusting part can be positioned at the adjusted angle, and the wave surging direction and angle can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to wave making equipment technical field, especially wave making structure and wave making device. BACKGROUND

[0002] The wave making device can simulate various water flows, create river and ocean-like growth environments for fish, and increase the oxygen content in water. The wave making device generally includes a driving motor and an impeller. The impeller rotates under the driving of the driving motor to drive water flow to achieve wave making.

[0003] In the related art, the direction and angle of the wave made by the wave making device cannot be adjusted. SUMMARY

[0004] The embodiments of the present application provide a wave making structure and a wave making device, which can adjust the direction and angle of the wave surge.

[0005] The embodiments of the present application provide a wave making structure applied to a wave making device. The wave making device includes a wave making pump, and the wave making pump includes a shell and a wave making assembly installed on the shell. The wave making structure includes a mesh cover and an adjusting piece. The mesh cover has a water passing cavity. The mesh cover is connected with the shell and covers the outside of the wave making assembly, so that the wave making assembly is located in the water passing cavity. The adjusting piece is installed on the side of the mesh cover away from the shell. The adjusting piece has a water outlet channel communicating with the water passing cavity. The adjusting piece is rotationally connected with the mesh cover through nesting cooperation, or the adjusting piece is rotationally connected with the mesh cover through a connecting structure to adjust the opening direction of the water outlet channel. The adjusting piece can be positioned at the adjusted angle.

[0006] In some embodiments, one end of the mesh cover is provided with a mounting port communicating with the water passing cavity, and the adjusting piece is nested in the mounting port.

[0007] The outer diameter of the adjusting piece is greater than the inner diameter of the mounting port, so that the adjusting piece can be positioned at the adjusted angle through the friction between the adjusting piece and the mesh cover.

[0008] In some embodiments, the adjusting piece and the mounting port are both circular structures.

[0009] And / or, in the axial direction of the mesh cover, the outer wall surface of the adjusting piece is an outwardly curved arc structure.

[0010] In some embodiments, the end of the mesh cover away from the shell is provided with a slot penetrating through the side wall of the mesh cover.

[0011] In some embodiments, the slots are provided in plurality and are arranged at intervals in the circumferential direction of the mesh cover.

[0012] In some embodiments, the device further comprises:

[0013] a connecting member; and

[0014] a follower impeller comprising a base portion and a plurality of blades connected to the base portion and arranged at intervals in the circumferential direction, the base portion being provided with a fitting hole;

[0015] The adjusting member is provided with a fixing hole at the middle of the water outlet channel, and the connecting member is arranged through the fitting hole and fixed in the fixing hole to relatively fix the follower impeller and the adjusting member.

[0016] In some embodiments, the adjusting member comprises an outer ring and a connecting rib, the outer ring is formed with the water outlet channel, the connecting rib is connected to the inner wall of the outer ring and separates the water outlet channel into a plurality of sub-channels, and the connecting rib is provided with the fixing hole.

[0017] The connecting member is provided with a limiting portion and a gasket between the limiting portion and the follower impeller and / or between the follower impeller and the adjusting member.

[0018] In some embodiments, the mesh cover comprises a cover main body and a mounting rack, the cover main body is formed with the water passing cavity, one end of the cover main body is connected to the shell, the other end is provided with a mounting opening communicating with the water passing cavity, the mounting rack is connected to the inner wall of the cover main body and is provided with a limiting shaft extending towards the adjusting member at the middle of the mounting opening.

[0019] In some embodiments, the mesh cover comprises a cover main body and a mounting rack, the cover main body is formed with the water passing cavity, one end of the cover main body is connected to the shell, the other end is provided with a mounting opening communicating with the water passing cavity, and the mounting rack is connected to the inner wall of the cover main body.

[0020] The adjusting member is mounted in the mounting opening, and the adjusting member comprises an outer ring and a connecting rib, the outer ring is formed with the water outlet channel, and the connecting rib is connected to the inner wall of the outer ring.

[0021] The connecting structure is a universal bearing, the universal bearing comprises a fixed member and a rotating member rotatably connected to the fixed member, the fixed member is connected to one of the mounting rack and the connecting rib, and the rotating member is connected to the other one of the mounting rack and the connecting rib, so that the adjusting member can swing relative to the mesh cover.

[0022] In a second aspect, the embodiments of the present application further provide a wave making device, comprising:

[0023] The wave making pump comprises a shell, a motor and a wave making impeller; the motor is installed on the shell, and the wave making impeller is installed on an output shaft of the motor; and

[0024] The wave making structure as described above, the mesh cover is connected with the shell and covers the outside of the motor and the wave making impeller;

[0025] The motor drives the wave making impeller to rotate to drive the water flow to flow outwards from the water outlet channel.

[0026] Based on the wave making device of the embodiment of the present application, the wave making structure comprises the motor and the wave making impeller, when the motor drives the wave making impeller to rotate, the wave making impeller can form a negative pressure, so that the external water flow enters the water passing cavity through the water passing channel, under the continuous pushing of the wave making impeller, the water in the water passing cavity is accelerated and forms a certain pressure and flow rate, and then forms a wave shape and is discharged outwards from the water outlet channel, since the adjusting piece is rotatably connected with the mesh cover through the nested cooperation, or the adjusting piece is rotatably connected with the mesh cover through the connecting structure, so as to adjust the opening direction of the water outlet channel, thereby the direction and angle of the wave flowing outwards can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0028] Figure 1 The structural schematic diagram of the wave making structure of an embodiment provided by the present application;

[0029] Figure 2 The side view schematic diagram of the wave making structure of an embodiment provided by the present application;

[0030] Figure 3 The Figure 2 sectional view schematic diagram at A-A in FIG. 4;

[0031] Figure 4 The exploded schematic diagram of the wave making structure of an embodiment provided by the present application;

[0032] Figure 5 The structural schematic diagram of the wave making device of another embodiment provided by the present application;

[0033] Figure 6 The sectional view schematic diagram of the wave making device of another embodiment provided by the present application.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 10, wave making structure; 110, net cover; 111, cover main body; 1111, inner cylinder; 1112, rib; 1113, fixed part; 112, mounting frame; 1121, mounting part; 1122, connecting arm; 113, matching part; 110a, water passing cavity; 110b, water passing channel; 110c, mounting port; 114, limiting shaft; 110e, slot; 120, adjusting piece; 120a, water outlet channel; 120b, fixing hole; 121, outer ring; 122, connecting rib; 130, connecting piece; 131, connecting part; 132, limiting part; 140, follow-up impeller; 141, base part; 142, blade; 140a, assembly hole; 150, gasket.

[0036] The purposes, functional features and advantages of the present application will be further described with reference to the drawings in conjunction with embodiments. DETAILED DESCRIPTION

[0037] In order to make the purposes, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail in conjunction with the drawings.

[0038] The following description of the embodiments with reference to the drawings is merely representative of embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with the present application as recited in the appended claims.

[0039] In the description of the present application, it should be understood that the terms "first", "second" and the like are used only for the purpose of description and cannot be understood as indicating or implying relative importance. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. "And / or", the association between the associated objects, means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. The character " / " generally represents a "or" relationship between the associated objects before and after.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated listed items.

[0041] The wave making device can simulate various water flows to create a river or ocean-like growth environment for fish, and can also increase the oxygen content in the water, and can be applied in an aquarium, aquaculture or a home fish tank. The wave making device generally includes a driving motor and an impeller, and the impeller rotates under the driving of the driving motor to drive the water flow to achieve wave making. In the related art, the wave made by the wave making device cannot adjust the direction and angle of the surge, and it is difficult to meet the different needs of users.

[0042] Therefore, embodiments of the present application provide a wave making device to adjust the angle of wave making. Please refer to Figure 1 and Figure 2 The wave making device includes a wave making pump (not shown in the figure) and a wave making structure 10.

[0043] The wave making pump includes a shell (not shown in the figure) and a wave making assembly (not shown in the figure), and the wave making assembly includes a motor and a wave making impeller. The motor is installed in the shell, and the wave making impeller is installed on the output shaft of the motor. It should be noted that the shell can be in the form of a chassis, that is, the main body of the motor is installed in the installation cavity inside the chassis, and the output shaft of the motor extends out of the installation cavity and is fixed with the wave making impeller. The shell can also be in the form of a cover, and the motor installation cavity and the impeller installation cavity are formed in the cover. The main body of the motor is installed in the motor installation cavity, and the output shaft of the motor extends out of the motor installation cavity and is located in the impeller installation cavity. The wave making impeller is installed on the output shaft and located in the impeller installation cavity. It can be understood that in this example, the shell can also have a channel that communicates the impeller installation cavity and the outside. In this way, when the motor drives the wave making impeller to rotate, the wave making impeller can form a negative pressure to suck in water flow from the outside through the channel, and can be discharged outward through the channel to achieve the effect of wave making. The shell can include two or more than two installation shells to form an installation cavity. In this application, the specific form of the shell is not limited.

[0044] The wave making pump can also include a control module (not shown in the figure), which can be a circuit board installed in the installation cavity to control the working conditions of the motor, including the speed, torque and other key parameters, to generate more stable and predictable wave effects and improve user experience. For example, when larger waves are needed, the speed and torque of the motor can be increased; when smoother waves are needed, the speed and torque of the motor can be reduced.

[0045] Please refer to Figures 1 to 3The wave making structure 10 comprises a mesh cover 110 and an adjusting piece 120. The mesh cover 110 has a water passing cavity 110a, and a water passing channel 110b is arranged on the surface of the mesh cover 110 and connected with the water passing cavity 110a. The mesh cover 110 is connected with the shell and covers the outside of the wave making assembly, so that the wave making assembly is located in the water passing cavity 110a. An inner wall of the mesh cover 110 is provided with a matching part 113 which is detachably connected with a matching structure on the shell. Optionally, the matching part 113 and the matching structure can be detachably fixed by means of screwing, buckling, thread cooperation or the like. The adjusting piece 120 is installed on the side of the mesh cover 110 away from the shell, and the adjusting piece 120 has a water outlet channel 120a connected with the water passing cavity 110a. The adjusting piece 120 is rotatably connected with the mesh cover 110 by means of nesting cooperation, or the adjusting piece 120 is rotatably connected with the mesh cover 110 by means of a connecting structure, so as to adjust the opening direction of the water outlet channel 120a, and the adjusting piece 120 can be positioned at the adjusted angle.

[0046] Specifically, when the motor drives the wave making impeller to rotate, the wave making impeller can form a negative pressure, so that the external water flow enters the water passing cavity 110a through the water passing channel 110b. Under the continuous pushing of the wave making impeller, the water in the water passing cavity 110a is accelerated and forms a certain pressure and flow rate, thereby forming a wave shape and being discharged outward from the water outlet channel 120a. Since the adjusting piece 120 is rotatably connected with the mesh cover 110 by means of the connecting piece 130, the opening direction of the water outlet channel 120a can be adjusted, so as to adjust the direction and angle of the wave flowing outward.

[0047] Please refer to Figures 1 to 4 The mesh cover 110 is provided with a mounting port 110c at the end away from the shell, and the adjusting piece 120 is nested and installed in the mounting port 110c. The outer diameter of the adjusting piece 120 is greater than the inner diameter of the mounting port 110c, so that the adjusting piece 120 can be positioned at the adjusted angle by means of the friction between the adjusting piece 120 and the cover main body 111.

[0048] In some embodiments, the adjusting piece 120 and the mounting port 110c are circular structures, so that the adjusting piece 120 can swing at multiple angles in the mounting port 110c. Of course, in other embodiments, the adjusting piece 120 and the mounting port 110c can be rectangular, rectangular-like or circular-like structures. In these structural forms, the adjusting piece 120 can be adjusted in the up-down and left-right directions in the mounting port 110c based on the visual angle of the water outlet channel 120a, so as to meet different user needs.

[0049] Based on the wave making structure 10 of the embodiments of the present application, the adjusting member 120 is nested in the mounting port 110c, and the adjusting member 120 can rotate relative to the mesh cover 110, so as to adjust the opening direction of the water outlet channel 120a. Since the outer diameter of the adjusting member 120 is slightly larger than the inner diameter of the mounting port 110c, at this time, the outer wall of the adjusting member 120 and the inner wall of the mounting port 110c are in interference fit, so that there is a certain friction force, and then the adjusting member 120 can be positioned at the adjusted angle through the friction force.

[0050] Referring to Figures 1 to 4 In some embodiments, the adjusting member 120 includes an outer ring 121 and a connecting rib 122, the outer ring 121 is formed with the water outlet channel 120a described above, and the connecting rib 122 is connected to the inner side wall of the outer ring 121 and separates the water outlet channel 120a into multiple sub-channels, so as to further improve the water flow guiding property. The middle part of the connecting rib 122 is formed with a fixing hole 120b located in the middle part of the water outlet channel 120a. The outer diameter of the outer ring 121 is larger than the inner diameter of the mounting port 110c, so that the adjusting member 120 can be positioned at the adjusted angle through the friction force between the adjusting member 120 and the cover main body 111.

[0051] Referring to Figures 1 to 4 In some embodiments, the mesh cover 110 includes a cover main body 111 and a mounting frame 112, the cover main body 111 is formed with a water passing cavity 110a, and one end of the cover main body 111 is provided with an opening and connected with the shell, so that the wave making pump can extend into the water passing cavity 110a through the opening, and the other end of the cover main body 111 is provided with a mounting port 110c connected with the water passing cavity 110a, and the mounting frame 112 is connected to the inner wall of the cover main body 111 and is provided with a limiting shaft 114 located in the middle part of the mounting port 110c. The cover main body 111 and the mounting frame 112 can be integrally formed by injection molding using plastic material, so as to provide the structural strength of the mesh cover 110.

[0052] Specifically, the adjusting member 120 is nested in the mounting port 110c, when the adjusting member 120 needs to be rotated, the middle part of the adjusting member 120, i.e. the middle part of the connecting rib 122, abuts against the limiting shaft 114, the adjusting member 120 has a force point in the process of rotation, and can rotate around the limiting shaft 114, so as to improve the convenience of adjusting the adjusting member 120.

[0053] The cover main body 111 comprises an inner cylinder 1111, a plurality of ribs 1112, and a fixing portion 1113. The inner cylinder 1111 is provided with the mounting port 110c described above; the plurality of ribs 1112 are connected to the outer wall of the inner cylinder 1111 and extend to one side of the inner cylinder 1111, and the water passage 110b is formed between the plurality of ribs 1112, wherein the ribs 1112 can be arranged in an arc shape so that the outer wall surface of the cover main body 110 is arranged in an outwardly curved arc shape; the fixing portion 1113 is connected to one end of the rib 1112 away from the inner cylinder 1111 and is formed with an opening, and the fixing portion 1113 is detachably connected to the shell described above. The mounting bracket 112 comprises a mounting portion 1121 and a plurality of connecting arms 1122 connected to the mounting portion 1121, and the mounting portion 1121 is provided with the limiting shaft 114 described above. One end of the connecting arm 1122 away from the mounting portion 1121 is connected to the inner wall of the inner cylinder 1111.

[0054] Specifically, the inner cylinder 1111 can provide a stable support structure and can function as a current collector. When the motor drives the wave-making impeller to rotate to generate negative pressure, the water flow can flow along the inner wall surface of the inner cylinder 1111 to the water outlet passage 120a, thereby improving the wave-making efficiency. The plurality of ribs 1112 are connected to the outer wall of the inner cylinder 1111 and extend to one side of the inner cylinder 1111, forming the water passage 110b, which is beneficial to the water flow entering the water passage 110a and can prevent external objects (such as debris, etc.) from entering the water passage 110a, thereby protecting the wave-making pump from damage. The fixing portion 1113 and the shell can be detachably connected by buckle connection, threaded connection, screw connection, etc., which is beneficial to the installation and maintenance of the wave-making structure 10 and can enable the wave-making structure 10 of the present application to be adapted for use with different wave-making pumps.

[0055] In order to improve the positioning effect of the adjusting member 120 and the cover main body 111, an opening slot 110e is formed in the side wall of the cover main body 111 away from the shell, that is, an opening slot 110e is formed in the edge of the inner cylinder 1111 away from the fixing portion 1113 and extends inwardly. The opening slot 110e penetrates the side wall of the inner cylinder 1111, so that the inner cylinder 1111 has a certain deformation ability. When the adjusting member 120 is inserted into the mounting port 110c or rotated in the mounting port 110c, the inner cylinder 1111 can slightly deform to adapt to the position change of the adjusting member 120. Since the inner cylinder 1111 has a certain deformation ability, the inner cylinder 1111 always maintains good contact and constraint when the adjusting member 120 is rotated to different angles, thereby positioning the adjusting member 120 at the adjusted angle.

[0056] Further, a plurality of opening slots 110e are arranged at intervals in the circumferential direction of the cover main body 111 to further improve the deformation ability of the inner cylinder 1111.

[0057] In order to facilitate the adjustment of the adjusting member 120, the outer wall surface of the outer ring 121 is in an outwardly curved arc structure in the axial direction of the mesh cover 110. The arc-shaped outer wall surface can reduce the resistance or friction encountered by the adjusting member 120 during swinging, thereby improving the stability and smoothness of the swinging. Moreover, in this example, the length of the outer ring 121 can be set to be relatively long, thereby improving the guiding property of the water outlet channel 120a to the water flow. Of course, in other embodiments, the inner wall of the mounting opening 110c can be provided in an inwardly concave arc structure, and the length of the outer ring 121 in the axial direction is adjusted so that the outer ring 121 abuts against the inner wall of the mounting opening 110c during rotation, which is not limited in the present application.

[0058] Referring to Figure 5 and Figure 6 In some embodiments, the wave making structure 10 further comprises a connecting member 130 and a following impeller 140, the following impeller 140 comprising a base portion 141 and a plurality of blades 142 connected to the base portion 141 and arranged at intervals in the circumferential direction, and the base portion 141 is provided with a mounting hole 140a; wherein the connecting member 130 passes through the mounting hole 140a and is fixed in the fixing hole 120b. In this example, when the wave making impeller pushes the water flow to flow outward from the water outlet channel 120a, the water flow will drive the following impeller 140 to rotate, at this time, the following impeller 140 can make secondary diffusion to the waves made by the wave making impeller, thereby forming a larger and stronger wave shape in the water.

[0059] Referring to Figure 6 In some embodiments, the connecting member 130 comprises a connecting portion 131 and a limiting portion 132 connected to each other, the outer diameter of the limiting portion 132 is greater than the hole diameter of the mounting hole 140a, the connecting portion 131 passes through the mounting hole 140a and is fixed in the fixing hole 120b, and the limiting portion 132 is used to limit the following impeller 140 to prevent the following impeller 140 from being separated from the connecting portion 131. Between the limiting portion 132 and the following impeller 140; or between the following impeller 140 and the adjusting member 120; or between the limiting portion 132 and the following impeller 140 and between the following impeller 140 and the adjusting member 120, a gasket 150 is arranged. The gasket 150 can reduce the friction between the following impeller 140 and the limiting portion 132 or the adjusting member 120 when the following impeller 140 rotates, thereby improving the stability of the rotation of the following impeller 140, and facilitating the generation of a smoother and more continuous wave effect.

[0060] In some embodiments, the connecting structure is a universal bearing (not shown in the figure), which includes a fixed part and a rotating part rotatably connected with the fixed part. Specifically, the fixed part can be two plastic parts, the first plastic part can be connected with one of the mounting frame 112 and the connecting rib 122, and is provided with a spherical mounting groove, which can be jointly defined by a plurality of arc-shaped plates arranged at intervals, and the second plastic part is detachably connected with the first plastic part and is provided with a through hole. The rotating part includes a connected spherical part and an assembly part, the assembly part is used for connecting with the other one of the mounting frame 112 and the connecting rib 122, and the spherical part is embedded in the spherical mounting groove. During installation, the spherical part is first installed in the mounting groove, and then the second plastic part is assembled and fixed with the first plastic part, so as to fix the spherical part in the mounting groove, and the assembly part is outwardly extended through the through hole and connected with the mounting frame 112 or the connecting rib 122. Through the clamping force of the arc-shaped plates, the spherical part and the groove wall of the mounting groove are in friction, so that the spherical part can be positioned at the rotated position, at this time, the adjusting part 120 can be positioned at the adjusted position. Optionally, the second plastic part is a threaded cap and is threadedly connected with the outer wall of the arc-shaped plate, so that after the second plastic part and the first plastic part are assembled, the size of the mounting groove can be further limited by the inner wall of the threaded cap, the friction force of the spherical part rotating in the mounting groove is improved, and in this embodiment, the rotating form between the adjusting part 120 and the mesh cover 110 is not limited.

[0061] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the utility model, for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0062] The above is only a preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wave making structure (10) for use in a wave making apparatus, the wave making apparatus comprising a wave making pump, the wave making pump comprising a housing and a wave making assembly mounted to the housing, characterised in that, The wave making structure (10) comprises: a mesh cover (110) having a water passing cavity (110a), the mesh cover (110) is connected with the shell and covers the outside of the wave making assembly so that the wave making assembly is located in the water passing cavity (110a); and an adjusting member (120) installed on the side of the mesh cover (110) away from the shell, the adjusting member (120) has a water outlet channel (120a) communicating with the water passing cavity (110a); wherein the adjusting member (120) is rotatably connected with the mesh cover (110) through nesting cooperation, or the adjusting member (120) is rotatably connected with the mesh cover (110) through a connecting structure to adjust the opening direction of the water outlet channel (120a), and the adjusting member (120) can be positioned at the adjusted angle.

2. The wave making structure (10) of claim 1, wherein, One end of the mesh cover (110) is provided with a mounting port (110c) communicating with the water passing cavity (110a), and the adjusting member (120) is nested in the mounting port (110c); wherein the outer diameter of the adjusting member (120) is greater than the inner diameter of the mounting port (110c), so that the adjusting member (120) can be positioned at the adjusted angle through the friction between the adjusting member (120) and the mesh cover (110).

3. The wave making structure (10) of claim 2, wherein, The adjusting member (120) and the mounting port (110c) are both circular structures; and / or, in the axial direction of the mesh cover (110), the outer wall surface of the adjusting member (120) is an outwardly curved arc structure.

4. The wave making structure (10) of claim 2, wherein, The end of the mesh cover (110) away from the shell is provided with a slot (110e) penetrating the sidewall of the mesh cover (110).

5. A wave making structure (10) as claimed in claim 4, characterized in that The slot (110e) is provided with a plurality of slots and is arranged in the circumferential direction of the mesh cover (110).

6. A wave making structure (10) according to any one of claims 2 to 5, characterized in that Further comprising: a connecting member (130); and a following impeller (140) comprising a base body (141) and a plurality of blades (142) connected to the base body (141) and arranged in the circumferential direction, the base body (141) is provided with a fitting hole (140a); wherein the adjusting member (120) is provided with a fixing hole (120b) located in the middle of the water outlet channel (120a), the connecting member (130) penetrates the fitting hole (140a) and is fixed in the fixing hole (120b) to relatively fix the following impeller (140) and the adjusting member (120). The adjusting member (120) comprises an outer ring (121) and a connecting rib (122), the outer ring (121) forms the water outlet channel (120a), the connecting rib (122) is connected to the inner sidewall of the outer ring (121) and separates the water outlet channel (120a) into a plurality of sub-channels, and the connecting rib (122) is provided with the fixing hole (120b).

7. A wave making structure (10) according to claim 6, wherein ​ And / or, a gasket (150) is arranged between the limiting part (132) of the connecting piece (130) and the follow-up impeller (140) and / or between the follow-up impeller (140) and the adjusting piece (120).

8. A wave making structure (10) according to any one of claims 1 to 5 and 7, characterized in that The mesh cover (110) comprises a cover main body (111) and a mounting rack (112), the cover main body (111) is formed with the water passing cavity (110a), one end of the cover main body (111) is connected with the shell, the other end is provided with a mounting opening (110c) communicating with the water passing cavity (110a), the mounting rack (112) is connected to the inner wall of the cover main body (111) and is provided with a limiting shaft (114) extending towards the adjusting piece (120) and located in the middle of the mounting opening (110c).

9. The wave making structure (10) of claim 1, wherein, The mesh cover (110) comprises a cover main body (111) and a mounting rack (112), the cover main body (111) is formed with the water passing cavity (110a), one end of the cover main body (111) is connected with the shell, the other end is provided with a mounting opening (110c) communicating with the water passing cavity (110a), the mounting rack (112) is connected to the inner wall of the cover main body (111) and is provided with a limiting shaft (114) extending towards the adjusting piece (120) and located in the middle of the mounting opening (110c). The adjusting piece (120) is mounted in the mounting opening (110c), and the adjusting piece (120) comprises an outer ring (121) and a connecting rib (122), the outer ring (121) is formed with the water outlet channel (120a), and the connecting rib (122) is connected to the inner wall of the outer ring (121). The connecting structure is a universal bearing, the universal bearing comprises a fixed part and a rotating part rotatably connected with the fixed part, one of the mounting rack (112) and the connecting rib (122) is connected with the fixed part, and the other of the mounting rack (112) and the connecting rib (122) is connected with the rotating part, so that the adjusting piece (120) can swing relative to the mesh cover (110).

10. A wave making device characterized by Comprise: The wave making pump comprises a shell, a motor and a wave making impeller, the motor is installed in the shell, and the wave making impeller is installed on the output shaft of the motor. And The wave making structure (10) according to any one of claims 1 to 9, the mesh cover (110) is connected with the shell and covers the outside of the motor and the wave making impeller. The motor drives the wave making impeller to rotate to drive the water flow to flow out from the water outlet channel (120a).

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