Pipeline connecting structure, pumping device and electrical equipment

Abstract

The utility model relates to the technical field of fluid machinery, and discloses a pipeline connecting structure, a pumping device and electrical equipment. The pipeline connecting structure comprises a butt-joint pipeline, a first connecting pipe and a second connecting pipe, and the butt-joint pipeline comprises a first end and a second end, and a fluid channel is formed between the first and second ends; the damping structure is arranged at the first end, close to the vibration source, of the butt joint pipeline so as to buffer and absorb vibration energy and prevent the vibration energy from being transmitted to the second end along the butt joint pipeline; the damping structure comprises a vibration reduction cavity formed in the peripheral side of the butt joint pipeline. The vibration reduction cavity is formed in the first end, close to the vibration source, of the butt joint pipeline, vibration energy is buffered and adsorbed through the vibration reduction cavity, and the vibration energy is prevented from being transmitted to the second end of the butt joint pipeline along the butt joint pipeline; after the pumping device is provided with the pipeline connecting structure, transmission of vibration generated in the working process of the pumping device can be reduced, noise is reduced, the durability and reliability of equipment are improved, and the satisfaction degree of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid machinery technical field, concretely relates to a pipeline connecting structure, pumping device and electrical equipment. BACKGROUND

[0002] The connecting place of the pumping device and the pipeline of the air conditioning equipment generally adopts the rigid connection mode, and the vibration and the noise generated when the pumping device works are more easily transmitted although the mode is better in durability. Taking the cold fan as an example, the connecting place of the water pump and the pipeline adopts the rigid connection, and the vibration and the noise are easily generated when the water pump runs. The vibration and the noise of the equipment can cause the user to have a bad experience, and affect the satisfaction of the user. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model provides a pipeline connecting structure, pumping device and electrical equipment to solve the problem that the vibration and the noise are easily transmitted due to the connecting mode of the pumping device and the pipeline, and the user has a bad experience.

[0004] In the first aspect, the utility model provides a pipeline connecting structure, which comprises:

[0005] The connecting pipeline comprises a first end and a second end, and a fluid channel is formed between the first end and the second end;

[0006] The damping structure is arranged at the first end of the connecting pipeline close to the vibration source to buffer and absorb the vibration energy and avoid the vibration energy being transmitted to the second end along the connecting pipeline; and the damping structure comprises a damping cavity arranged on the outer circumferential side of the connecting pipeline.

[0007] Advantages: the damping structure is arranged at the first end of the connecting pipeline close to the vibration source, the vibration energy is buffered and absorbed by the damping structure, and the vibration energy is prevented from being transmitted to the second end of the connecting pipeline along the connecting pipeline; after the pumping device is provided with the pipeline connecting structure, the transmission of the vibration generated during the working process of the pumping device can be reduced, the noise can be reduced, the durability and the reliability of the equipment can be improved, and the satisfaction of the user can be improved.

[0008] The damping cavity is used to consume and absorb vibration and noise. The air or other filling medium in the cavity structure has friction and viscous effect with the structure wall surface, which can dissipate vibration energy, equivalent to increase the damping of the structure. When subjected to vibration excitation, the cavity structure can disperse vibration energy to a larger area. Due to the existence of the cavity, the stress distribution of the structure is more uniform, and local stress concentration leading to strong vibration can be avoided. Part of the vibration energy can also be transferred to the kinetic energy or internal energy of the medium through the interaction with the medium in the cavity. When the sound wave enters the cavity structure, reflection, refraction and interference phenomena occur in the cavity, and the incident sound wave and the reflected sound wave will interfere with each other and cancel out, thereby reducing the propagation and radiation of sound, thereby reducing noise. Moreover, the damping cavity has a simple structure.

[0009] In an alternative embodiment, the first end of the docking pipe comprises:

[0010] An inner pipe adapted to be connected to the vibration source;

[0011] An outer pipe spacedly arranged on the outer circumferential side of the inner pipe;

[0012] A groove formed between the inner pipe and the outer pipe, constituting the damping cavity.

[0013] Beneficial effect: The first end of the docking pipe comprises an inner pipe and an outer pipe, and a groove as a damping cavity is formed between the inner pipe and the outer pipe. The docking pipe is connected to the vibration source through the inner pipe, and the groove is formed on the periphery of the connection with the vibration source, which can effectively absorb vibration and noise.

[0014] In an alternative embodiment, the docking pipe further comprises:

[0015] A partition rib arranged between the inner pipe and the outer pipe, separating the damping cavity into multiple cavities.

[0016] Beneficial effect: The damping cavity is separated into multiple cavities by the partition rib, improving the damping effect. Separating the damping cavity into multiple small cavities can increase the damping resistance on the one hand: the existence of multiple ribs increases the resistance, thereby improving the energy consumption efficiency, which helps to more effectively absorb and convert vibration energy; on the other hand, it can disperse the vibration transmission path: multiple independent small cavities can change the propagation mode of the vibration wave, so that the vibration energy is reflected and refracted multiple times, eventually leading to rapid energy attenuation, reducing the vibration intensity transmitted to other components; on the other hand, reasonable rib layout not only enhances the structural stability, but also can adjust the stiffness distribution of each part according to actual needs to achieve better damping performance.

[0017] In an alternative embodiment, the docking pipe comprises:

[0018] The flexible pipe is connected with the vibration source through the butt joint pipe.

[0019] Beneficial effect: the flexible pipe is connected with the vibration source, compared with the rigid connection, the vibration is absorbed by deformation, further improving the effect of vibration reduction and noise reduction.

[0020] In a second aspect, the utility model also provides a pumping device, including:

[0021] Pumping assembly

[0022] The pipe connection structure of any one of the above, the butt joint pipe is installed to the pumping assembly.

[0023] Beneficial effect: the pumping device adopts the pipe connection structure of the utility model, the damping structure is arranged on the end of the butt joint pipe close to the pumping assembly, the propagation of the vibration generated in the working process of the pumping assembly is reduced, the transmission of the noise is reduced, the durability and reliability of the pumping device are improved, and the satisfaction of the user is improved.

[0024] In an optional implementation, the pumping assembly includes a water pump, and the butt joint pipe is detachably installed on the water pump.

[0025] Beneficial effect: the detachable connection mode is adopted between the butt joint pipe and the water pump, and the maintenance and replacement operation are facilitated.

[0026] In a third aspect, the utility model also provides an electrical appliance, including:

[0027] Machine body

[0028] Liquid storage container

[0029] The pumping device of any one of the above, the pumping assembly is connected with the liquid storage container through the butt joint pipe.

[0030] Beneficial effect: since the electrical appliance includes the pumping device of the utility model, it has the same technical effect as the pumping device, which will not be repeated here.

[0031] In an optional implementation, the electrical appliance further includes:

[0032] Sealing structure, arranged at the joint of the butt joint pipe and the liquid storage container.

[0033] Beneficial effect: the sealing structure is arranged at the joint of the liquid storage container and the butt joint pipe, so that the water leakage is prevented.

[0034] In an optional implementation, the sealing structure includes:

[0035] First butt joint valve, including first valve body and first valve core

[0036] The second docking valve comprises a second valve body and a second valve core; the second valve body comprises an inner ring and an outer ring, and a sealing ring groove is formed between the inner ring and the outer ring;

[0037] The first sealing member is installed on the inner ring of the second valve body;

[0038] The second sealing member is installed on the outer ring of the second valve body.

[0039] Beneficial effects: By arranging the first sealing member and the second sealing member at the docking position of the first docking valve and the second docking valve, a double sealing structure is formed, thereby improving the docking reliability of the two docking valves. When the sealing structure of the utility model is applied to the docking position of the liquid storage container and the pipeline, the liquid storage container and the liquid storage container, or the liquid storage container and the pumping device, the leakage of water at the docking position can be avoided, and the reliability of the fluid device and the electrical equipment is improved. The first sealing member and the second sealing member are respectively installed on the inner ring and the outer ring of the second valve body, so that a first sealing barrier is formed between the first valve body, the second valve body and the first sealing member, a second sealing barrier is formed between the first valve body, the second valve body and the second sealing member, and the structure is simple and the reliability is high.

[0040] In an optional embodiment, the first docking valve and the second docking valve have a docking intermediate state and a docking completed in-place state; in the intermediate state, the first sealing member is in contact with the first valve body, and a first closed cavity is formed between the first valve body, the second valve body and the first sealing member; in the in-place state, the first docking valve and the second docking valve are in communication, and a second closed cavity is formed between the first valve body, the second valve body and the second sealing member, thereby forming a double sealing structure.

[0041] Beneficial effects: When the two docking members are connected in communication, the first sealing member is in contact with the first docking valve during the docking process, and a first closed cavity serving as a first sealing barrier is formed between the first valve body, the second valve body and the first sealing member, thereby ensuring that no water leaks before the valve core is opened; when the two docking members are completely docked, a second closed cavity serving as a second sealing barrier is formed between the first valve body, the second valve body and the second sealing member, and the sealing effect is further enhanced under the double sealing action of the first sealing member and the second sealing member, thereby ensuring that no water leaks after the first docking valve and the second docking valve are in communication.

[0042] In an optional embodiment, the first sealing member comprises:

[0043] The first sealing ring is sleeved in the annular embedding groove arranged on the outer circumferential side of the inner ring;

[0044] A sealing flash is formed on the outer periphery of the first sealing ring.

[0045] Beneficial effects: The first sealing ring can be reliably installed on the outer periphery of the inner ring of the second valve body through the annular groove. When the first sealing ring contacts the first interface valve, the sealing flash can block the fitting gap, further improving the sealing effect.

[0046] In an alternative embodiment, the second sealing member comprises:

[0047] A mounting portion is clamped to the upper edge of the outer ring;

[0048] A sealing portion is formed axially from the mounting portion and located in the sealing ring groove.

[0049] Beneficial effects: The second sealing member is clamped to the upper edge of the outer ring of the second valve body through the mounting portion, and is reliably connected with the second valve body to avoid falling out during installation and fitting. The sealing portion formed by the mounting portion can be sealed and fitted with the first interface valve in the sealing ring groove, thereby forming a second sealing cavity to improve the sealing reliability.

[0050] In an alternative embodiment, the electrical appliance further comprises:

[0051] A mounting bracket, through which the pumping assembly is mounted on the fuselage.

[0052] Beneficial effects: The pumping assembly is mounted on the fuselage through the mounting bracket, ensuring the stability and durability of the electrical appliance.

[0053] In an alternative embodiment, the mounting bracket comprises a bracket body, which comprises:

[0054] A first accommodating portion adapted to accommodate the pumping assembly;

[0055] A second accommodating portion is connected to the first end of the first accommodating portion and adapted to support the interface pipeline in communication with the pumping assembly.

[0056] Beneficial effects: The pumping assembly is arranged in the first accommodating portion of the bracket body, and the interface pipeline is arranged in the second accommodating portion of the bracket body. The pumping assembly and the interface pipeline in communication therewith can be firmly fixed through the mounting bracket at the same time, improving the connection reliability of the pumping device and the durability and stability of long-term use. Even when the pumping assembly is externally arranged in the liquid storage container, the durability and stability of the device can still be ensured.

[0057] In an alternative embodiment, the first accommodating portion comprises:

[0058] A first limiting wall;

[0059] A second limiting wall is symmetrically arranged with the first limiting wall; the first limiting wall and / or the second limiting wall is provided with a clamping portion at a second end away from the first end of the first accommodating portion.

[0060] Beneficial effects: the pumping assembly can be limited in a specific installation space (the first accommodating portion) by the symmetrically arranged first limiting wall and second limiting wall, ensuring installation reliability; the clamping portion is arranged to further improve connection reliability.

[0061] In an alternative embodiment, the clamping portion comprises:

[0062] A plurality of clamping ribs are vertically arranged on one side of the first limiting wall and the second limiting wall.

[0063] Beneficial effects: when a damping layer for vibration reduction and noise reduction is arranged between the pumping assembly and the mounting bracket, the damping layer can be fixed by the clamping portion; the clamping portion comprises a plurality of clamping ribs, which can increase the friction coefficient between the damping layer and the mounting bracket, improving connection reliability.

[0064] In an alternative embodiment, the second accommodating portion comprises:

[0065] A support portion is arranged at one end of the second accommodating portion close to the first accommodating portion, and a concave support groove is formed on the support portion;

[0066] A limiting ring is arranged at one end of the second accommodating portion away from the first accommodating portion.

[0067] Beneficial effects: the concave support groove can support the butt joint pipeline, improving the connection reliability of the butt joint pipeline and the pumping assembly; the limiting ring can limit and guide one end of the butt joint pipeline away from the first accommodating portion, realizing reliable connection between the butt joint pipeline and the liquid storage container.

[0068] In an alternative embodiment, the electric appliance is a cooling fan.

[0069] Beneficial effects: since the cooling fan adopts the pipeline connection structure of the present application, the butt joint pipeline is provided with a damping structure at one end close to the water pump, reducing the propagation of vibration generated during the operation of the water pump, reducing the transmission of noise, improving the durability and reliability of the water pump, and improving user satisfaction. BRIEF DESCRIPTION OF DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present application, the following will briefly introduce the drawings needed to be used in the specific embodiments or related technology description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0071] Figure 1 It is a schematic view of a pipeline connecting structure of the embodiment of the utility model, the connecting relationship of the water pump, the butt joint pipeline and the second butt joint valve is shown in the drawing;

[0072] Figure 2 It is a sectional view of a pipeline connecting structure of the embodiment of the utility model, the connecting relationship of the water pump, the butt joint pipeline, the second butt joint valve, the first sealing member and the second sealing member is shown in the drawing;

[0073] Figure 3 It is a sectional structure schematic view of a cold fan of the embodiment of the utility model, the intermediate state schematic view in the butt joint process of the water tank and the butt joint pipeline is shown in the drawing;

[0074] Figure 4 It is Figure 3 The local enlarged schematic view of A portion in the drawing;

[0075] Figure 5 It is a sectional structure schematic view of a cold fan of the embodiment of the utility model, the in-place state schematic view after the butt joint of the water tank and the butt joint pipeline is completed is shown in the drawing;

[0076] Figure 6 It is Figure 5 The local enlarged schematic view of B portion in the drawing;

[0077] Figure 7 It is a structure schematic view of the first butt joint valve of the embodiment of the utility model;

[0078] Figure 8 It is a structure view of a pumping device of the embodiment of the utility model;

[0079] Figure 9 It is a connecting structure schematic view when a pumping assembly of the embodiment of the utility model is installed on the fuselage through the mounting bracket;

[0080] Figure 10 It is a three-dimensional structure schematic view of a mounting bracket of the embodiment of the utility model;

[0081] Figure 11 It is a structure schematic view of another damping cavity of the embodiment of the utility model;

[0082] Figure 12 It is a structure view of a mounting bracket of the embodiment of the utility model, the symmetry plane E is shown in the drawing.

[0083] Explanation of reference signs:

[0084] 100, water storage container;

[0085] 200, butt joint pipeline;

[0086] 201 inner tube; 202 outer tube; 203 partition rib;

[0087] 300 pumping assembly;

[0088] 400 buffer layer;

[0089] 500 damping cavity;

[0090] 501 cavity;

[0091] 600 mounting bracket;

[0092] 601 connecting structure; 602 clamping portion; 603 supporting portion; 604 limiting ring;

[0093] 610 first limiting wall; 620 second limiting wall;

[0094] 10 first closed cavity;

[0095] 20 second closed cavity;

[0096] 1 first connecting valve;

[0097] 11 first valve body; 12 first valve core;

[0098] 2 second connecting valve;

[0099] 21 second valve body; 22 second valve core;

[0100] 3 first sealing element;

[0101] 31 first sealing ring; 32 sealing flash;

[0102] 4 second sealing element;

[0103] 41 mounting portion; 42 sealing portion. DETAILED DESCRIPTION

[0104] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0105] In the description of the utility model, it needs to be explained that, unless otherwise specified, the meaning of "multiple" is two or more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0106] In the description of the utility model, it also needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0107] The embodiments of the utility model will be described below in combination with Figures 1 to 12 .

[0108] According to the embodiments of the utility model, on the one hand, as Figures 1-2 indicated, a pipeline connecting structure 601 is provided, which comprises:

[0109] The butt joint pipeline 200 comprises a first end and a second end, and a fluid passage is formed between the first end and the second end;

[0110] The damping structure is arranged at the first end of the butt joint pipeline 200 close to the vibration source to buffer and absorb vibration energy, so that the vibration energy is not transmitted to the second end along the butt joint pipeline 200; The damping structure comprises a damping cavity 500 arranged on the outer circumferential side of the butt joint pipeline 200.

[0111] The damping structure is arranged at the first end of the butt joint pipeline 200 close to the vibration source, and the damping structure buffers and absorbs vibration energy, thereby avoiding the transmission of the vibration energy along the butt joint pipeline 200 to the second end of the butt joint pipeline 200. After the pipeline connection structure 601 is arranged, the pumping device can reduce the propagation of the vibration generated in the working process of the pumping device, reduce noise, improve the durability and reliability of the equipment, and improve the satisfaction of the user. The arrangement of the damping cavity 500 plays a role in consuming and absorbing vibration and noise. The air or other filling medium in the cavity structure has friction and viscous effects with the wall surface of the structure, can dissipate vibration energy, and is equivalent to increasing the damping of the structure. When subjected to vibration excitation, the cavity structure can disperse vibration energy to a larger area. Due to the existence of the cavity, the stress distribution of the structure is more uniform, and local stress concentration caused by strong vibration can also be avoided. Part of the vibration energy can also be transferred to the kinetic energy or internal energy of the medium through the interaction with the medium in the cavity. When the sound wave is transmitted into the cavity structure, reflection, refraction and interference phenomena occur in the cavity, and the incident sound wave and the reflected sound wave interfere with each other and cancel each other out, thereby reducing the propagation and radiation of sound, and reducing noise. Moreover, the damping cavity 500 has a simple structure.

[0112] In some embodiments, as shown in FIG. 1, Figure 2 the first end of the butt joint pipeline 200 includes:

[0113] an inner pipe 201 adapted to be connected to the vibration source;

[0114] an outer pipe 202 arranged at the outer circumferential side of the inner pipe 201;

[0115] a groove formed between the inner pipe 201 and the outer pipe 202, constituting a damping cavity 500.

[0116] The first end of the butt joint pipeline 200 includes the inner pipe 201 and the outer pipe 202, and the groove formed between the inner pipe 201 and the outer pipe 202 as the damping cavity 500. The butt joint pipeline 200 is connected to the vibration source through the inner pipe 201, and the groove is formed at the periphery of the connection with the vibration source, which can effectively absorb vibration and noise.

[0117] Specifically, the width of the groove is generally greater than 1 mm, and the depth of the groove is generally greater than 5 mm. The maximum limit of the width of the groove and the depth of the groove is not specifically limited here. In actual application, the width of the groove can be designed according to the diameter and length of the butt joint pipeline 200, the depth of the groove can be reasonably selected according to the arrangement space size of the butt joint pipeline 200 and the vibration source, and in addition, the material properties of the butt joint pipeline 200 should also be considered.

[0118] In some embodiments, the butt joint pipeline 200 further includes:

[0119] The partitioning ribs 203 are arranged between the inner tube 201 and the outer tube 202, and divide the damping cavity 500 into a plurality of cavities 501.

[0120] The damping cavity 500 is divided into a plurality of cavities 501 by the partitioning ribs 203, thereby improving the damping effect. The damping cavity 500 is divided into a plurality of small cavities 501, which can increase the damping resistance on one hand, and the presence of the plurality of partitioning ribs 203 increases the resistance, thereby improving the energy consumption efficiency and helping to more effectively absorb and convert vibration energy; on the other hand, the vibration transmission path can be dispersed, and the plurality of independent small cavities 501 can change the propagation mode of the vibration wave, so that the vibration energy is reflected and refracted multiple times, thereby causing the energy to attenuate quickly and reducing the vibration intensity transmitted to other components; on the other hand, the reasonable layout of the partitioning ribs 203 not only enhances the structural stability, but also adjusts the stiffness distribution of each part according to actual needs, thereby achieving better damping performance.

[0121] It should be noted that, in some embodiments, as shown in Figure 11 The partitioning ribs 203 can be a plurality of ribs arranged between the inner tube 201 and the outer tube 202 and arranged axially along the damping cavity 500, and the plurality of ribs divide the damping cavity 500 into a plurality of cavities 501 extending axially along the butt joint pipe 200. In other embodiments, the partitioning ribs 203 can also be honeycomb walls that divide the damping cavity 500 into honeycomb-shaped cavities.

[0122] In some embodiments, the butt joint pipe 200 comprises:

[0123] The flexible pipe is connected to the vibration source.

[0124] Compared with the rigid connection mode, the flexible pipe is connected to the vibration source by deforming to absorb the vibration, thereby further improving the damping and noise reduction effect.

[0125] It should be noted that the butt joint pipe 200 can be made of flexible material as a whole, or at least the part connected to the vibration source can be made of flexible pipe.

[0126] According to the embodiments of the present application, on the other hand, a pumping device is also provided, comprising:

[0127] The pumping assembly 300;

[0128] The pipe connecting structure 601 is arranged on the pumping assembly 300.

[0129] Due to the pipeline connecting structure 601 of the utility model is adopted by the pumping device, the damping structure is arranged on the end of the docking pipeline 200 close to the pumping assembly 300, the propagation of the vibration generated in the working process of the pumping assembly 300 is reduced, the transmission of the noise is reduced, the durability and reliability of the pumping device are improved, and the satisfaction of the user is improved.

[0130] In some embodiments, the pumping assembly 300 comprises a water pump, and the docking pipeline 200 is detachably mounted on the water pump.

[0131] The detachable connection mode is adopted between the docking pipeline 200 and the water pump, so that the maintenance and replacement operation are facilitated.

[0132] According to the embodiment of the utility model, in still another aspect, an electric appliance is also provided, which comprises:

[0133] A machine body;

[0134] A liquid storage container;

[0135] A pumping device, the pumping assembly 300 is communicated with the liquid storage container through the docking pipeline 200.

[0136] Since the electric appliance comprises the pumping device of the utility model, the same technical effects as the pumping device are achieved, which will not be repeated here.

[0137] In some embodiments, as shown in Figures 3-6 The electric appliance further comprises:

[0138] A sealing structure arranged at the joint of the docking pipeline 200 and the liquid storage container.

[0139] The sealing structure is arranged at the joint of the liquid storage container and the docking pipeline 200, so that the water leakage is prevented.

[0140] In some embodiments, as shown in Figure 4 and Figure 6 The sealing structure comprises:

[0141] A first docking valve 1 comprising a first valve body 11 and a first valve core 12, as shown in Figure 7 ;

[0142] A second docking valve 2 comprising a second valve body 21 and a second valve core 22; the second valve body 21 comprises an inner ring and an outer ring, and a sealing ring groove is formed between the inner ring and the outer ring;

[0143] A first sealing member 3 mounted on the inner ring of the second valve body 21;

[0144] A second sealing member 4 mounted on the outer ring of the second valve body 21.

[0145] The first sealing piece 3 and the second sealing piece 4 are arranged at the joint of the first joint valve 1 and the second joint valve 2, and constitute double sealing, so that the joint reliability of the first joint valve 1 and the second joint valve 2 is improved. When the sealing structure of the utility model is applied to the joint of the liquid storage container and the pipeline, the liquid storage container or the joint of the liquid storage container and the pumping device, the water leakage at the joint can be avoided, and the reliability of the fluid device and the electrical equipment is improved. The first sealing piece 3 and the second sealing piece 4 are respectively arranged on the inner ring and the outer ring of the second valve body 21, so that the first sealing barrier is formed between the first valve body 11, the second valve body 21 and the first sealing piece 3, the second sealing barrier is formed between the first valve body 11, the second valve body 21 and the second sealing piece 4, and the structure is simple and the reliability is high.

[0146] In some embodiments, the first joint valve 1 and the second joint valve 2 have a joint intermediate state and a joint in-place state. In the intermediate state, the first sealing piece 3 is in contact with the first valve body 11, and a first closed cavity 10 is formed between the first valve body 11, the second valve body 21 and the first sealing piece 3. In the in-place state, the first joint valve 1 and the second joint valve 2 are in communication, and a second closed cavity 20 is formed between the first valve body 11, the second valve body 21 and the second sealing piece 4, constituting double sealing.

[0147] When the two joint parts are connected in communication, the first sealing piece 3 is in contact with the first joint valve 1 during the joint process, and a first closed cavity 10 as the first sealing barrier is formed between the first valve body 11, the second valve body 21 and the first sealing piece 3, ensuring that no water leaks before the valve core is opened. When the two joint parts are connected, a second closed cavity 20 as the second sealing barrier is formed between the first valve body 11, the second valve body 21 and the second sealing piece 4. Under the double sealing action of the first sealing piece 3 and the second sealing piece 4, the sealing effect is further enhanced, and no water leaks after the first joint valve 1 and the second joint valve 2 are in communication. Therefore, when the sealing structure of the utility model is applied to the joint of the liquid storage container and the pipeline, the liquid storage container or the joint of the liquid storage container and the pumping device, the water leakage at the joint can be avoided, and the reliability of the electrical equipment is improved.

[0148] In some embodiments, as shown in Figure 4 and Figure 6 The first sealing piece 3 comprises:

[0149] The first sealing ring 31 is arranged on the outer peripheral side of the inner ring, and the first sealing ring 31 is sleeved in the annular embedding groove.

[0150] The sealing flash 32 is formed on the periphery of the first sealing ring 31.

[0151] The first sealing ring 31 can be reliably installed on the outer periphery of the inner ring of the second valve body 21 through the annular groove. When the first sealing ring 31 contacts the first interface valve 1, the sealing flash 32 can block the fitting gap, further improving the sealing effect.

[0152] In some embodiments, as shown in Figure 4 and Figure 6 The second sealing member 4 includes:

[0153] The mounting portion 41 is clamped to the upper edge of the outer ring;

[0154] The sealing portion 42 is formed axially from the mounting portion 41 and located in the sealing ring groove.

[0155] The second sealing member 4 is clamped to the upper edge of the outer ring of the second valve body 21 through the mounting portion 41, and is reliably connected with the second valve body 21 to avoid falling out during installation and fitting. The sealing portion 42 formed by the mounting portion 41 can be sealed and fitted with the first interface valve 1 in the sealing ring groove, thereby forming a second sealing cavity 501 and improving the sealing reliability.

[0156] In some embodiments, the electrical appliance further includes:

[0157] The mounting bracket 600 is used to install the pumping assembly 300 on the body of the electrical appliance.

[0158] The pumping assembly 300 is installed on the body of the electrical appliance through the mounting bracket 600, ensuring the stability and durability of the electrical appliance.

[0159] In some embodiments, the mounting bracket 600 includes a bracket body, and the bracket body includes:

[0160] The first accommodating portion is adapted to accommodate the pumping assembly 300;

[0161] The second accommodating portion is adapted to support the interface pipeline 200 in communication with the pumping assembly 300.

[0162] The pumping assembly 300 is arranged in the first accommodating portion of the bracket body, and the interface pipeline 200 is arranged in the second accommodating portion of the bracket body. The pumping assembly 300 and the interface pipeline 200 in communication therewith can be simultaneously and firmly fixed through the mounting bracket 600, improving the connection reliability of the pumping assembly 300 and the durability and stability of long-term use. Even when the pumping assembly 300 is externally arranged in the liquid storage container, the durability and stability of the electrical appliance can still be ensured.

[0163] In some embodiments, as shown in Figure 8 and Figure 10 The first accommodating portion includes:

[0164] The first limiting wall 610;

[0165] The second limiting wall 620 is symmetrically arranged with the first limiting wall 610 along the vertical bisector of the length direction of the first accommodating portion. The first limiting wall 610 and / or the second limiting wall 620 is / are provided with a clamping portion 602 at a second end away from the first end of the first accommodating portion.

[0166] As shown in Figure 12 , the second limiting wall 620 is symmetrically arranged with the first limiting wall 610 along the vertical bisector E of the length direction of the first accommodating portion. Of course, in other embodiments, it can also be symmetrically arranged along other symmetry planes, mainly according to the direction of the mounting surface of the mounting bracket 600 and the arrangement space for comprehensive consideration.

[0167] The pumping assembly 300 can be limited in a specific mounting space (the first accommodating portion) by the symmetrically arranged first limiting wall 610 and the second limiting wall 620, ensuring the installation reliability; the clamping portion 602 is arranged to further improve the connection reliability.

[0168] In some embodiments, the pumping assembly 300 can be firmly fixed to the mounting bracket 600 directly through the clamping portion 602.

[0169] In some embodiments, as shown in Figure 8 and Figure 10 , the clamping portion 602 comprises:

[0170] A plurality of clamping ribs are vertically arranged on the side of the first limiting wall 610 and the second limiting wall 620 facing each other.

[0171] The clamping portion 602 comprises a plurality of clamping ribs, which can increase the friction coefficient between the pumping assembly 300 and the mounting bracket 600, and improve the connection reliability.

[0172] In some embodiments, the second accommodating portion comprises:

[0173] A supporting portion 603 is arranged at one end of the second accommodating portion close to the first accommodating portion, and a concave supporting groove is formed on the supporting portion 603.

[0174] A limiting ring 604 is arranged at one end of the second accommodating portion away from the first accommodating portion.

[0175] The concave supporting groove can support the butt joint pipeline 200, improving the connection reliability of the butt joint pipeline 200 and the pumping assembly 300; the limiting ring 604 can limit and guide one end of the butt joint pipeline 200 away from the first accommodating portion, realizing the reliable connection between the butt joint pipeline 200 and the liquid storage container.

[0176] In some embodiments, as shown in Figure 1 , Figure 2 , Figure 8 and Figure 9The electric appliance further comprises:

[0177] The buffering layer 400 is arranged between the pumping assembly 300 and the first accommodating portion of the support body.

[0178] The docking pipeline 200 is arranged in the second accommodating portion.

[0179] The pumping assembly 300 is docked with the liquid storage container such as a water tank through the docking pipeline 200.

[0180] The buffering layer 400 is arranged between the pumping assembly 300 and the first accommodating portion of the support body.

[0181] When the buffering layer 400 for reducing vibration and noise is arranged between the pumping assembly 300 and the mounting support 600, the buffering layer 400 can be fixed through the clamping portion 602.

[0182] In some embodiments, the buffering layer 400 comprises:

[0183] The sponge pad is arranged between the pumping assembly 300 and the mounting support 600.

[0184] The sponge pad is used for reducing vibration and noise, is convenient to install and replace, and is low in cost.

[0185] In some embodiments, the electric appliance is a cold fan.

[0186] Since the cold fan adopts the pipeline connection structure 601 of the utility model, the damping structure is arranged at the end of the docking pipeline 200 close to the water pump, the propagation of vibration generated in the working process of the water pump is reduced, the transmission of noise is reduced, the durability and reliability of the water pump are improved, and the satisfaction of users is improved.

[0187] As Figures 1-10 shown, the utility model discloses a cold fan, adopts the mode that water pump is external to water tank, and water pump is installed on the body of cold fan instead of the traditional water tank, which is convenient for users to take the water tank, connects the water pump with the second docking valve 2 through the docking pipeline 200, and installs the water pump at the predetermined position on the body of cold fan, so that the water pump is stable and has good sealing performance. The first docking valve 1 is installed on the water tank, so that the first docking valve 1 is stable and has good sealing performance. The first docking valve 1 and the second docking valve 2 all comprise a valve body, a valve core and a spring. The first sealing member 3 (first sealing ring 31) and the second sealing member 4 (second sealing ring) are assembled at the second docking valve 2.

[0188] When the user installs the water tank on the machine, the first docking valve 1 and the second docking valve 2 gradually approach and dock with each other. During the docking process, the first sealing element 3 first contacts the first docking valve 1 during assembly, forming a first closed cavity 10 to ensure that no water leaks before the valve core assembly is lifted open. As the water tank is further installed in place, the valve core assemblies are lifted open and the waterway is opened. At the same time, the second sealing element 4 forms a second closed cavity 20 with the first docking valve 1 to ensure the sealing of the entire connection channel. The water in the water tank flows through the first docking valve 1 above to the second docking valve 2 below, and is then pumped by the water pump to the wet curtain to complete the cooling process. The double-sealing design effectively prevents water leakage between the two docking valves, improves the reliability and durability of the product, reduces the problem of water leakage during assembly, and simplifies the user's operation steps.

[0189] The water pump of the cold fan is fixed on the machine by the mounting bracket 600, and a sponge pad is arranged between the water pump and the mounting bracket 600. According to the size and weight of the water pump, a stable bracket is designed, the water pump bracket does not directly contact the water pump, and the water pump is indirectly contacted by a silica gel pipe and a sponge to be fixed on the machine, so that the vibration damping performance is improved. At the end of the water pump away from the docking pipe 200, a sponge material with sound absorption and shock absorption functions is used for close wrapping. The mounting bracket 600 should be made of rust-proof and high-strength materials to ensure the stability during long-term use. The docking pipe 200 is made of silica gel pipe, and high-quality silica gel material is selected to make the pipe, so that the pipe has good elasticity and durability. The end of the silica gel pipe close to the water pump is designed as a hollow groove to increase the elasticity and reduce the vibration transmission. The silica gel pipe is connected between the water pump and the second docking valve 2, so that the connection is tight and leakage-free. Then, the water pump is fixed on the machine by the mounting bracket 600, and it is confirmed whether the parts are installed in place to ensure that the system operates normally and the shock absorption and noise reduction effect is remarkable.

[0190] The utility model is suitable for various cold fan products, especially in the scene that needs to frequently replace or clean the water tank. Through the external water pump and the double-sealing design, the utility model can significantly improve the market competitiveness of the cold fan, and bring more convenient and reliable use experience to the user.

[0191] Although the embodiments of the utility model are described in combination with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the range defined by the present application.

Claims

1. A pipe connection structure characterized by comprising: The utility model relates to a pipeline connecting structure (601) comprising: a docking pipeline (200) comprising a first end and a second end, a fluid passage being formed between the first end and the second end; a damping structure arranged at the first end of the docking pipeline (200) close to a vibration source to buffer adsorbed vibration energy and prevent the vibration energy from being transmitted along the docking pipeline (200) to the second end; the damping structure comprises a damping cavity (500) arranged at the outer circumferential side of the docking pipeline (200).

2. The pipe connection structure according to claim 1, characterized by The first end of the docking pipeline (200) comprises: an inner pipeline (201) adapted to be connected to the vibration source; an outer pipeline (202) arranged at the outer circumferential side of the inner pipeline (201) at intervals; a groove formed between the inner pipeline (201) and the outer pipeline (202) to constitute the damping cavity (500).

3. The pipe connection structure according to claim 2, characterized by The docking pipeline (200) further comprises: a partition rib (203) arranged between the inner pipeline (201) and the outer pipeline (202) to divide the damping cavity (500) into a plurality of cavities (501).

4. The pipe connection structure according to any one of claims 1 to 3, characterized by The docking pipeline (200) comprises: a flexible pipeline, the docking pipeline (200) being connected to the vibration source through the flexible pipeline.

5. A pumping device characterized by, The utility model relates to a pumping device (100) comprising: a pumping assembly (300); the pipeline connecting structure (601) according to any one of claims 1 to 4, the docking pipeline (200) being mounted to the pumping assembly (300).

6. The pumping device of claim 5, wherein, The pumping assembly (300) comprises a water pump, and the docking pipeline (200) is detachably mounted to the water pump.

7. An electrical appliance characterized by The utility model relates to an electric appliance (100) comprising: a machine body; a liquid storage container; the pumping device (100) according to claim 5 or 6, the pumping assembly (300) being connected in communication with the liquid storage container through the docking pipeline (200).

8. The electrical appliance of claim 7, wherein, The electric appliance (100) further comprises: a sealing structure arranged at the joint between the docking pipeline (200) and the liquid storage container.

9. The electrical appliance of claim 8, wherein, The sealing structure comprises: a first docking valve (1) comprising a first valve body (11) and a first valve core (12); a second docking valve (2) comprising a second valve body (21) and a second valve core (22); the second valve body (21) comprises an inner ring and an outer ring, and a sealing ring groove is formed between the inner ring and the outer ring; a first sealing member (3) mounted to the inner ring of the second valve body (21); a second sealing member (4) mounted to the outer ring of the second valve body (21).

10. The electrical appliance of claim 9, wherein, The first docking valve (1) and the second docking valve (2) have an intermediate state of docking and a to-position state of completed docking; in the intermediate state, the first sealing member (3) is in contact with the first valve body (11), and a first closed cavity (10) is formed between the first valve body (11), the second valve body (21) and the first sealing member (3); in the to-position state, the first docking valve (1) is in communication with the second docking valve (2), and a second closed cavity (20) is formed between the first valve body (11), the second valve body (21) and the second sealing member (4), constituting double sealing.

11. The electrical appliance of claim 10, wherein, The first sealing member (3) comprises: A first sealing ring (31) is arranged in an annular groove on the outer periphery of the inner ring; A sealing flash (32) is formed on the outer periphery of the first sealing ring (31).

12. The electrical appliance of claim 10, wherein, The second sealing member (4) comprises: A mounting portion (41) is clamped to the upper edge of the outer ring; A sealing portion (42) is axially extended from the mounting portion (41) and located in the sealing ring groove.

13. The electrical appliance of any one of claims 7 to 12, wherein, The electric appliance further comprises: A mounting bracket (600) is used to mount the pumping assembly (300) to the body.

14. The electrical appliance of claim 13, wherein, The mounting bracket (600) comprises a bracket body, which comprises: A first accommodating portion is adapted to accommodate the pumping assembly (300); A second accommodating portion is adapted to support a connecting pipe (200) connected to the pumping assembly (300).

15. The electrical appliance of claim 14, wherein, The first accommodating portion comprises: A first limiting wall (610); A second limiting wall (620) is symmetrically arranged with the first limiting wall (610); the first limiting wall (610) and / or the second limiting wall (620) are provided with a clamping portion (602) at the second end away from the first end of the first accommodating portion.

16. The electrical appliance of claim 15, wherein, The clamping portion (602) comprises: A plurality of clamping ribs are vertically arranged on one side of the first limiting wall (610) and the second limiting wall (620).

17. The appliance of claim 14, wherein, The second accommodating portion comprises: A support portion (603) is arranged at one end of the second accommodating portion close to the first accommodating portion, and a concave support groove is formed on the support portion (603); A limiting ring (604) is arranged at one end of the second accommodating portion away from the first accommodating portion.

18. The electrical appliance of any one of claims 7 to 12, wherein, The electric appliance is a cooling fan.

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