Pipeline connecting assembly and water purifying device with same

Abstract

The utility model provides a pipeline connecting assembly and a water purifying device with the pipeline connecting assembly, and the pipeline connecting assembly comprises a connecting part and a connecting part, the mounting seat is provided with a mounting seat hole; the limiting piece is movably arranged on the mounting base and provided with a limiting piece hole, the connecting pipe penetrates through the mounting base hole and the limiting piece hole, the hole wall of the limiting piece hole is provided with a first arc section and a second arc section, the radius of the first arc section is smaller than or equal to that of the outer surface of the connecting pipe, and the radius of the second arc section is larger than that of the outer surface of the connecting pipe; when the limiting piece is located at the limiting position, the first arc section is matched with the connecting pipe in a limiting mode to prevent the connecting pipe from being separated from the limiting piece hole, and when the limiting piece is located at the dismounting position, the second arc section is matched with the connecting pipe to enable the connecting pipe to be separated from the limiting piece hole. According to the technical scheme, the problem that in the related technology, the operation of assembling and disassembling an external pipeline by a user is complex can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of purification equipment, in particular to a pipeline connection component and a water purification device having the same. Background Art

[0002] As the quality of life continues to improve, people's requirements for the quality of the water they use are also constantly increasing. In ordinary households, the most common water purification device is the water purifier. A water purifier is a water treatment device that can deeply filter and purify water. It usually uses tap water or other centralized water supply as raw water, and after further treatment, removes certain harmful substances in the water. A water purifier can filter out impurities such as floating objects, heavy metals, bacteria, viruses, residual chlorine, silt, rust, microorganisms, etc. in the water. Water purifiers have become one of the essential household appliances in many families.

[0003] In the art, a water purifier generally includes a base and a filter part arranged on the base, a transfer tube is arranged in the base, a first end of the transfer tube is connected to the water inlet and outlet of the filter part, a second end of the transfer tube is arranged on the side wall of the base, and an external pipe for introducing raw water is connected to the second end of the transfer tube on the base, so that the raw water can enter the filter part; usually, the external pipe and the second end of the transfer tube are connected by threaded fitting, so that the external pipe can be detachably connected to the base; however, the external pipe generally includes an inlet pipe and an outlet pipe arranged at intervals, and the distance between the inlet pipe and the outlet pipe is small. When the external pipe needs to be loaded and unloaded, when the user screws one of the inlet pipe or the outlet pipe, the other will interfere with the user, making it difficult for the user to connect both external pipes to the transfer tube, increasing the difficulty of installation. Therefore, there is a problem in the art that the operation of loading and unloading the external pipe by the user is relatively complicated. Utility Model Content

[0004] The main purpose of the utility model is to provide a pipe connection assembly and a water purification device having the same, so as to solve the problem in the related art that the operation of users installing and removing external pipes is relatively complicated.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a pipe connection assembly is provided, including: a connecting part, which is used to connect an external pipe and has a connecting pipe connected to the external pipe; a mounting seat, which has a mounting seat hole that passes through the mounting seat; a limiter, which is movably arranged on the mounting seat along a preset direction and has a limiter hole corresponding to the mounting seat hole, and the connecting pipe is passed through the mounting seat hole and the limiter hole, and the hole wall of the limiter hole has a first arc segment and a second arc segment, the radius of the first arc segment is less than or equal to the radius of the outer surface of the connecting pipe, and the radius of the second arc segment is greater than the radius of the outer surface of the connecting pipe, and the limiter has a limiting position and a disassembly position, when the limiting member is located at the limiting position, the first arc segment cooperates with the connecting pipe to prevent the connecting pipe from detaching from the limiting member hole, when the limiting member is located at the disassembly position, the second arc segment cooperates with the connecting pipe to enable the connecting pipe to detach from the limiting member hole, wherein the preset direction is set at an angle to the axis of the mounting seat hole.

[0006] Furthermore, the mounting seat includes a mounting groove extending along a preset direction, the limiting member includes a plug plate movably arranged in the mounting groove, the limiting member hole is arranged on the plug plate, and a limiting groove is arranged on the connecting part. When the limiting member is in the limiting position, at least a part of the plug plate corresponding to the first arc segment extends into the limiting groove to prevent the connecting pipe from detaching from the limiting member hole.

[0007] Furthermore, the pipe connection assembly also includes a retaining member arranged between the mounting seat and the limiting member, and the retaining member can cooperate with the limiting member to keep the limiting member in the limiting position.

[0008] Further, the mounting seat includes a mounting groove extending along a preset direction, the mounting groove has a mounting opening and a groove bottom wall arranged opposite to the mounting opening, the limiting member includes a plug plate movably arranged in the mounting groove, and the retaining member includes a first elastic arm arranged on the plug plate, and the first elastic arm cooperates with the groove bottom wall to apply a resisting force toward the mounting opening to the plug plate so that the limiting member is maintained in the limited position.

[0009] Furthermore, the mounting seat includes a mounting seat stopper, and the plug plate is provided with a plug plate stopper, and the mounting seat stopper cooperates with the plug plate stopper to prevent the plug plate from falling out of the mounting groove.

[0010] Furthermore, the plug plate stop portion includes a second elastic arm arranged on the plug plate and a stop block arranged on the second elastic arm, and the mounting seat stop portion includes a stop groove arranged on the side wall of the mounting groove, and the stop block is movably arranged in the stop groove along a preset direction so that the limit member can move between the limit position and the disassembly position.

[0011] Furthermore, an operating portion is provided on the limiting member, and the operating portion is provided at an end opposite to the first elastic arm, and force is applied to the limiting member through the operating portion to overcome the resisting force and move along a preset direction.

[0012] Furthermore, the connecting pipe includes a plurality of tube bodies arranged at intervals along a preset direction, the mounting seat is provided with a plurality of mounting seat holes corresponding one-to-one to the plurality of tube bodies, the limiting member is provided with a plurality of limiting member holes corresponding one-to-one to the plurality of tube bodies, the mounting seat also includes a first positioning member, and the connecting part also includes a second positioning member positioned and matched with the first positioning member.

[0013] According to another aspect of the utility model, a water purification device is provided, including a shell and a pipe connection assembly arranged on the shell, and the pipe connection assembly is the above-mentioned pipe connection assembly.

[0014] Furthermore, an installation opening is provided on the shell, and the mounting seat is passed through the installation opening. The mounting seat includes a transfer tube, at least part of which is located on the inner side of the shell. The water purification device also includes a locking member arranged on the inner side of the shell, and the locking member is connected to the transfer tube to prevent the mounting seat from escaping from the shell to the outside.

[0015] By applying the technical solution of the utility model, an external pipeline is connected to a connecting part, and the connecting part has a connecting pipe, which is communicated with the external pipeline; the mounting seat has a mounting seat hole; the limiting member has a limiting member hole, and the mounting seat hole and the limiting member hole are arranged correspondingly; the limiting member can move along a preset direction, so that the limiting member can switch between a limiting position and a disassembly position; when it is necessary to connect the connecting part and the mounting seat, the limiting member is first located in the disassembly position, so that the connecting pipe can penetrate into the mounting seat hole and the limiting member hole, and then the limiting member is switched to the limiting position. Since the radius of the first arc segment is less than or equal to the radius of the outer surface of the connecting pipe, the first arc segment can cooperate with the connecting pipe in a limiting manner, so that the connecting pipe It will not be disengaged from the stopper hole, so that the connection part and the mounting seat are stably connected; when the connection part and the mounting seat need to be separated, the stopper is switched from the stopper position to the disassembly position. Since the radius of the second arc segment is greater than the radius of the outer surface of the connecting pipe, the connecting pipe can be disengaged from the stopper hole, so that the connection part and the mounting seat are separated; compared with the threaded matching solution, in the present application, the user only needs to move the stopper along the preset direction to switch the stopper between the stopper position and the disassembly position, so as to realize the connection and separation of the connection part and the mounting seat, thereby simplifying the operation of the user connecting or separating the connection part and the mounting seat, and improving the user experience. Therefore, the technical solution of the present application can effectively solve the problem of the user's complicated operation of loading and unloading external pipes in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1A cross-sectional schematic diagram of a pipe connection assembly according to an embodiment of a water purification device of the utility model is shown, wherein the limiting member is located at a limiting position;

[0018] Figure 2 Shows Figure 1 A cross-sectional schematic diagram of a pipeline connection assembly, wherein the stopper is located at a disassembly position;

[0019] Figure 3 Shows Figure 1 A three-dimensional structural schematic diagram of a partial structure of a water purification device;

[0020] Figure 4 Shows Figure 2 A three-dimensional structural schematic diagram of a partial structure of a water purification device;

[0021] Figure 5 Shows Figure 1 A schematic diagram of the three-dimensional structure of the connecting portion of the pipeline connecting assembly;

[0022] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of a mounting base of a pipe connection assembly;

[0023] Figure 7 Shows Figure 1 A schematic diagram of the three-dimensional structure of a stopper and a retainer of a pipe connection assembly;

[0024] Figure 8 Shows Figure 1 A schematic diagram of the three-dimensional structure of a shell of a pipeline connection assembly;

[0025] Fig. 9 Shows Figure 1 A three-dimensional structural schematic diagram of a partial structure of a shell and a mounting seat of a pipe connection assembly.

[0026] The above drawings include the following reference numerals:

[0027] a. Preset direction;

[0028] 10. Connecting part; 11. Connecting pipe; 111. Limiting groove; 112. Pipe body; 113. Accommodating groove; 12. Second positioning member;

[0029] 20. Mounting seat; 21. Mounting seat hole; 22. Mounting groove; 221. Mounting opening; 222. Groove bottom wall; 23. Avoidance opening; 24. Mounting seat stopper; 241. Stop groove; 25. First positioning member; 26. Transfer tube; 27. Third positioning member;

[0030] 30. Limiting member; 31. Limiting member hole; 311. First arc segment; 312. Second arc segment; 32. Insertion plate; 321. Plate body; 322. Protruding wing; 33. Insertion plate stopper; 331. Second elastic arm; 332. Stopper block; 3321. Guide slope; 34. Operating portion; 35. Avoidance groove;

[0031] 40. retaining member; 41. first elastic arm;

[0032] 50. housing; 51. mounting opening; 52. fourth positioning member;

[0033] 60. Locking piece. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0037] like Figures 1 to 7As shown, the present application provides a pipeline connection assembly, and an embodiment of the pipeline connection assembly of the present application includes: a connecting portion 10, a mounting seat 20, and a stopper 30; the connecting portion 10 is used to connect an external pipeline and has a connecting pipe 11 connected to the external pipeline; the mounting seat 20 has a mounting seat hole 21 penetrating the mounting seat 20; the stopper 30 is movably arranged on the mounting seat 20 along a preset direction a and has a stopper hole 31 corresponding to the mounting seat hole 21, the connecting pipe 11 is penetrated through the mounting seat hole 21 and the stopper hole 31, and the hole wall of the stopper hole 31 has a first arc segment 311 and a second arc segment 312. 12, the radius of the first arc segment 311 is less than or equal to the radius of the outer surface of the connecting tube 11, the radius of the second arc segment 312 is greater than the radius of the outer surface of the connecting tube 11, the limiting member 30 has a limiting position and a disassembly position, when the limiting member 30 is at the limiting position, the first arc segment 311 and the connecting tube 11 are limitedly matched to prevent the connecting tube 11 from detaching from the limiting member hole 31, when the limiting member 30 is at the disassembly position, the second arc segment 312 and the connecting tube 11 are matched to enable the connecting tube 11 to detach from the limiting member hole 31, wherein the preset direction a is set at an angle with the axis of the mounting seat hole 21.

[0038] By applying the technical solution of this embodiment, the external pipeline is connected to the connecting part 10, and the connecting part 10 has a connecting pipe 11, which is connected to the external pipeline; the mounting seat 20 has a mounting seat hole 21; the limiting member 30 has a limiting member hole 31, and the mounting seat hole 21 and the limiting member hole 31 are arranged correspondingly; the limiting member 30 can move along the preset direction a, so that the limiting member 30 can switch between the limiting position and the disassembly position; when it is necessary to connect the connecting part 10 and the mounting seat 20, the limiting member 30 is first located in the disassembly position, so that the connecting pipe 11 can penetrate the mounting seat hole 21 and the limiting member hole 31, and then the limiting member 30 is switched to the limiting position. Since the radius of the first arc segment 311 is less than or equal to the radius of the outer surface of the connecting pipe 11, the first arc segment 311 can cooperate with the connecting pipe 11 in a limiting manner, so that The connecting tube 11 will not be separated from the stopper hole 31, so that the connecting part 10 and the mounting seat 20 are stably connected; when the connecting part 10 and the mounting seat 20 need to be separated, the stopper 30 is switched from the stopper position to the disassembly position. Since the radius of the second arc segment 312 is greater than the radius of the outer surface of the connecting tube 11, the connecting tube 11 can be separated from the stopper hole 31, so that the connecting part 10 and the mounting seat 20 are separated; compared with the threaded matching solution, in this embodiment, the user only needs to move the stopper 30 along the preset direction a to switch the stopper 30 between the stopper position and the disassembly position, so as to realize the connection and separation of the connecting part 10 and the mounting seat 20, thereby simplifying the user's operation of connecting or separating the connecting part 10 and the mounting seat 20, and improving the user's experience. Therefore, the technical solution of this embodiment can effectively solve the problem of the user's complicated operation of loading and unloading external pipes in the related art.

[0039] It should be noted that, in this embodiment, the "preset direction a" refers to the direction in which Figure 1 as well as Figure 2 In the left and right directions, the preset direction a is perpendicular to the axis of the mounting seat hole 21. In other embodiments not shown in the figure, the connecting pipe is a cylindrical structure, and the shortest distance between any point on the outer wall of the connecting pipe and the axis is the same. At this time, the first arc segment can be engaged with the outer wall of the connecting pipe, and can also prevent the connecting pipe from falling out of the stopper hole 31.

[0040] like Figures 1 to 7 As shown, the mounting seat 20 includes a mounting groove 22 extending along a preset direction a, the limiting member 30 includes an insert plate 32 movably arranged in the mounting groove 22, the limiting member hole 31 is arranged on the insert plate 32, and a limiting groove 111 is arranged on the connecting portion 10. When the limiting member 30 is located at the limiting position, at least a part of the insert plate 32 corresponding to the first arc segment 311 extends into the limiting groove 111. When the limiting member 30 is located at the disassembly position, the connecting pipe 11 is completely located within the range of the limiting member hole 31. Specifically, the mounting groove 22 extends along a preset direction a, and the plug plate 32 is arranged in the mounting groove 22, so that the limit member 30 can move along the preset direction a; the limit groove 111 is an annular groove arranged on the outer wall of the connecting tube 11; when the limit member 30 is located at the limiting position, at least a part of the plug plate 32 corresponding to the first arc segment 311 extends into the limiting groove 111, and this part of the plug plate 32 cooperates with the side wall stopper of the limiting groove 111, so that the connecting tube 11 will not fall out of the limiting member hole 31; when the limit member 30 is located at the disassembly position, the projection of the connecting tube 11 on the plug plate 32 is completely located within the range of the limiting member hole 31, so that the plug plate 32 will not extend into the limiting groove 111, and the connecting tube 11 can fall out of the limiting member hole 31.

[0041] It should be noted that, in this embodiment, “the radius of the first arc segment 311 is less than or equal to the radius of the outer surface of the connecting tube 11” means that the radius of the first arc segment 311 is less than or equal to the distance from the opening of the limiting groove 111 to the axis of the connecting tube 11; “the radius of the second arc segment 312 is greater than the radius of the outer surface of the connecting tube 11” means that the radius of the second arc segment 312 is greater than the maximum radius of the outer surface of the connecting tube 11.

[0042] like Figure 1 , Figure 2 as well as Figure 7 As shown, the pipe connection assembly also includes a retaining member 40 disposed between the mounting seat 20 and the stopper 30, and the retaining member 40 can cooperate with the stopper 30 to keep the stopper 30 in the stop position. Specifically, the retaining member 40 can keep the stopper 30 in the stop position, thereby ensuring a stable connection between the connecting portion 10 and the mounting seat 20.

[0043] like Figures 1 to 7 As shown, the mounting slot 22 has a mounting opening 221 and a slot bottom wall 222 arranged opposite to the mounting opening 221, the retaining member 40 includes a first elastic arm 41 arranged on the plug plate 32, the first elastic arm 41 and the slot bottom wall 222 abut against each other to apply a push force toward the mounting opening 221 to the plug plate 32, and the first arc segment 311 is arranged close to the first elastic arm 41 relative to the second arc segment 312. Specifically, the plug plate 32 is inserted into the mounting slot 22 from the mounting opening 221; Figure 1 As shown in the figure, the limiting member 30 is in the limiting position, the first elastic arm 41 is in contact with the bottom wall 222 of the groove, and the first elastic arm 41 applies a horizontal rightward force to the plug plate 32, so that part of the plug plate 32 can stably cooperate with the side wall stopper of the limiting groove 111; when the connecting part 10 needs to be disassembled, the user applies a horizontal leftward thrust to the plug plate 32, so that the plug plate 32 moves from Figure 1 Move horizontally to the left Figure 2 The position in Figure 2 As shown, the limiter 30 is now in the disassembly position, and the first elastic arm 41 is further compressed; when the user removes the thrust, the first elastic arm 41 can push the plug plate 32 horizontally to the right, so that part of the plug plate 32 extends into the limit slot 111, and the limiter 30 is kept in the limit position. The first elastic arm 41 is arc-shaped, with a simple structure and easy processing.

[0044] like Figures 1 to 4 as well as Figure 6 , Figure 7 As shown, the mounting seat 20 includes an avoidance opening 23 that penetrates the bottom wall 222 of the groove, the plug plate 32 includes a plate body 321, and when the plug plate 32 is inserted in the mounting groove 22, the plug plate 32 also includes a convex wing 322 arranged at one end of the plate body 321 away from the mounting opening 221, and the first elastic arm 41 is located between the bottom wall 222 of the groove and the plate body 321, and the convex wing 322 can pass through the avoidance opening 23. Specifically, the fixed end of the first elastic arm 41 is connected to the convex wing 322, which has the characteristic of easy processing; the setting of the avoidance opening 23 makes it easier for the manufacturer to demold when processing the mounting seat 20, and it is easier to process the mounting seat 20.

[0045] like Figures 1 to 4 as well as Figure 6 , Figure 7As shown, the mounting seat 20 includes a mounting seat stopper 24, and a plug-in board stopper 33 is provided on the plug-in board 32. The mounting seat stopper 24 and the plug-in board stopper 33 stop and cooperate to prevent the plug-in board 32 from being separated from the mounting slot 22. In this embodiment, the plug-in board stopper 33 includes a second elastic arm 331 provided on the plug-in board 32 and a stopper block 332 provided on the second elastic arm 331. The mounting seat stopper 24 includes a stopper groove 241 provided on the side wall of the mounting slot 22, and the stopper block 332 is movably provided in the stopper groove 241 along a preset direction a, so that the limiting member 30 can move between the limiting position and the disassembly position.

[0046] Specifically, the stop groove 241 is a through groove extending perpendicular to the preset direction a and penetrating the mounting seat 20, and has the characteristic of being easy to process; the stop block 332 is arranged on the side of the second elastic arm 331 away from the plate body 321, and an avoidance groove 35 is arranged between the second elastic arm 331 and the plate body 321, and both ends of the second elastic arm 331 are connected to the plate body 321; a guide slope 3321 is arranged on the side of the stop block 332 away from the mounting opening 221; when the plug board 32 is inserted into the mounting groove 22, the side wall of the mounting groove 22 cooperates with the guide slope 3321, so that the stop block 332 moves toward the direction close to the plate body 321; The plug plate 32 continues to move horizontally to the left, and when the stop block 332 is located at the position of the stop groove 241, the second elastic arm 331 will return to its natural state, so that the stop block 332 moves in the direction away from the plate body 321, and the side wall of the stop block 332 close to the installation opening 221 can cooperate with the side wall stop of the stop groove 241, so that the plug plate 32 will not separate from the installation groove 22; the stop groove 241 has a certain groove width in the preset direction a, so that the stop block 332 can move in the preset direction a in the stop groove 241, and the limit member 30 can move between the limit position and the disassembly position.

[0047] like Figures 1 to 7As shown, the connecting tube 11 includes a plurality of tube bodies 112 spaced apart along a preset direction a, a plurality of mounting seat holes 21 corresponding one-to-one to the plurality of tube bodies 112 are provided on the mounting seat 20, a plurality of limiting member holes 31 corresponding one-to-one to the plurality of tube bodies 112 are provided on the limiting member 30, the mounting seat 20 also includes a first positioning member 25, the connecting portion 10 also includes a second positioning member 12 positioned and matched with the first positioning member 25, and the first positioning member 25 is arranged offset from the center plane of the mounting seat 20. Specifically, the connecting pipe 11 includes two pipe bodies 112, one pipe body 112 is used as a water inlet pipe, and the other pipe body is used as a water outlet pipe. Two mounting seat holes 21 are provided on the mounting seat 20, and two limiting member holes 31 are provided on the limiting member 30. The pipe body 112 as the water inlet pipe is inserted into the corresponding mounting seat hole 21 and limiting member hole 31, and the pipe body 112 as the water outlet pipe is inserted into the corresponding mounting seat hole 21 and limiting member hole 31; the first positioning member 25 is a positioning groove, and the second positioning member 12 is a positioning convex block. Since the first positioning member 25 is set away from the center plane of the mounting seat 20, the first positioning member 25 and the second positioning member 12 are positioned and matched to play a fool-proof role. The center plane of the mounting seat 20 refers to the plane where the symmetry axis of the mounting seat 20 is located. In embodiments not shown in other figures, the first positioning member can be a positioning convex block, and the second positioning member can be a positioning groove.

[0048] like Figure 3 as well as Figure 4 As shown, the stopper 30 is provided with an operating portion 34, which is provided at an end opposite to the first elastic arm 41, and the stopper 30 is forced by the operating portion 34 to overcome the resisting force and move along the preset direction a. Specifically, the operating portion 34 is a plate-shaped structure, which is convenient for the user to push or pull the plug plate 32.

[0049] The present application also provides a water purifier, which includes a housing 50 and a pipe connection assembly disposed on the housing 50, wherein the pipe connection assembly is the above-mentioned pipe connection assembly. The above-mentioned pipe connection assembly can effectively solve the problem of the user's relatively complicated operation of installing and removing external pipes in the related art, and the water purifier having the above-mentioned pipe connection assembly also has the above-mentioned advantages.

[0050] like Figures 1 to 4 as well as Figure 8 , Fig. 9As shown, a mounting opening 51 is provided on the shell 50, and the mounting seat 20 is passed through the mounting opening 51. The mounting seat 20 includes a transfer tube 26, and at least a portion of the transfer tube 26 is located on the inner side of the shell 50. The water purification device also includes a locking member 60 arranged on the inner side of the shell 50, and the locking member 60 is connected to the transfer tube 26 to prevent the mounting seat 20 from escaping from the shell 50 to the outside. Specifically, the water purification device also includes a filtering structure arranged on the shell 50, the filtering structure has an inlet end and an outlet end, there are two transfer tubes 26, which are respectively connected to the two tube bodies 112 of the connecting pipe 11, and the inlet end and the outlet end of the filtering structure are also respectively connected to the two transfer tubes 26, so that the water inlet pipe of the external pipe is connected to the water inlet end of the filtering structure, and the water outlet pipe of the external pipe is connected to the water outlet end of the filtering structure; the locking member 60 has a locking plate and two incomplete circular holes arranged on the locking plate, an opening is arranged between the circular hole and the side wall of the locking plate, and the center angle between the opening and the center of the circular hole is an acute angle, one circular hole is adapted to the outer contour of one transfer tube 26, when the locking member 60 is installed with the transfer tube 26, the part of the circular hole corresponding to the locking plate away from the other circular hole can be elastically deformed in a direction away from the other circular hole, so that the transfer tube 26 can be squeezed into the circular hole, and the locking member 60 has the characteristics of simple structure.

[0051] It should be noted that the housing 50 is a cylindrical structure. Fig. 9 As shown, the “inside of the shell 50 ” refers to the space enclosed by the cylindrical structure, and the “outside of the shell 50 ” refers to the space outside the cylindrical structure.

[0052] In addition, if Figure 5 As shown, the connecting part 10 also includes a receiving groove 113 arranged on the connecting pipe 11 and a sealing ring arranged in the receiving groove 113. When the connecting part 10 is connected to the mounting seat 20, the sealing ring is located between the outer surface of the connecting pipe 11 and the inner surface of the transfer pipe 26 and is sealed with the two to prevent water leakage.

[0053] In addition, in this embodiment, a third positioning member 27 is provided on the mounting seat 20, and a fourth positioning member 52 is provided on the shell 50. The fourth positioning member 52 is located at the mounting opening 51. The third positioning member 27 and the fourth positioning member 52 are positioned and matched to play an anti-misalignment role.

[0054] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe connection assembly, characterized in that: include: A connecting portion (10) used for connecting to an external pipeline and having a connecting pipe (11) communicating with the external pipeline; A mounting seat (20) having a mounting seat hole (21) penetrating the mounting seat (20); A stopper (30) is movably arranged on the mounting seat (20) along a preset direction (a) and has a stopper hole (31) corresponding to the mounting seat hole (21); the connecting pipe (11) is passed through the mounting seat hole (21) and the stopper hole (31); the hole wall of the stopper hole (31) has a first arc segment (311) and a second arc segment (312); the radius of the first arc segment (311) is less than or equal to the radius of the outer surface of the connecting pipe (11); the radius of the second arc segment (312) is greater than the radius of the outer surface of the connecting pipe (11); The limiting member (30) has a limiting position and a disassembly position. When the limiting member (30) is located at the limiting position, the first arc segment (311) cooperates with the connecting tube (11) to prevent the connecting tube (11) from being separated from the limiting member hole (31). When the limiting member (30) is located at the disassembly position, the second arc segment (312) cooperates with the connecting tube (11) to enable the connecting tube (11) to be separated from the limiting member hole (31). The preset direction (a) is arranged at an angle with the axis of the mounting seat hole (21).

2. The pipe connection assembly according to claim 1, characterized in that: The mounting seat (20) comprises a mounting groove (22) extending along the preset direction (a); the limiting member (30) comprises a plug plate (32) movably arranged in the mounting groove (22); the limiting member hole (31) is arranged on the plug plate (32); a limiting groove (111) is arranged on the connecting portion (10); when the limiting member (30) is located at the limiting position, at least a portion of the plug plate (32) corresponding to the first arc segment (311) extends into the limiting groove (111) to prevent the connecting pipe (11) from being separated from the limiting member hole (31).

3. The pipe connection assembly according to claim 1, characterized in that: The pipe connection assembly further comprises a retaining member (40) arranged between the mounting seat (20) and the limiting member (30), wherein the retaining member (40) can cooperate with the limiting member (30) so that the limiting member (30) is retained in the limiting position.

4. The pipe connection assembly according to claim 3, characterized in that: The mounting seat (20) comprises a mounting groove (22) extending along the preset direction (a), the mounting groove (22) having a mounting opening (221) and a groove bottom wall (222) arranged opposite to the mounting opening (221), the limiting member (30) comprises an inserting plate (32) movably arranged in the mounting groove (22), the retaining member (40) comprises a first elastic arm (41) arranged on the inserting plate (32), the first elastic arm (41) and the groove bottom wall (222) abutting against each other to apply a resisting force to the inserting plate (32) toward the mounting opening (221), so that the limiting member (30) is maintained at the limiting position.

5. The pipe connection assembly according to claim 2, characterized in that: The mounting seat (20) comprises a mounting seat stopper (24), and the plug plate (32) is provided with a plug plate stopper (33), and the mounting seat stopper (24) cooperates with the plug plate stopper (33) to prevent the plug plate (32) from escaping from the mounting slot (22).

6. The pipe connection assembly according to claim 5, characterized in that: The plug plate stop portion (33) comprises a second elastic arm (331) arranged on the plug plate (32) and a stop block (332) arranged on the second elastic arm (331); the mounting seat stop portion (24) comprises a stop groove (241) arranged on a side wall of the mounting groove (22); the stop block (332) is movably arranged in the stop groove (241) along the preset direction (a), so that the limiting member (30) can move between the limiting position and the disassembly position.

7. The pipe connection assembly according to claim 4, characterized in that: The limiting member (30) is provided with an operating portion (34), and the operating portion (34) is provided at an end opposite to the first elastic arm (41). The operating portion (34) applies force to the limiting member (30) to overcome the resisting force and move along the preset direction (a).

8. The pipe connection assembly according to any one of claims 1 to 7, characterized in that: The connecting tube (11) comprises a plurality of tube bodies (112) arranged at intervals along the preset direction (a); the mounting seat (20) is provided with a plurality of mounting seat holes (21) corresponding one-to-one to the plurality of tube bodies (112); the limiting member (30) is provided with a plurality of limiting member holes (31) corresponding one-to-one to the plurality of tube bodies (112); the mounting seat (20) further comprises a first positioning member (25); and the connecting portion (10) further comprises a second positioning member (12) positioned and matched with the first positioning member (25).

9. A water purification device, comprising a housing (50) and a pipe connection assembly arranged on the housing (50), characterized in that: The pipe connection assembly is the pipe connection assembly according to any one of claims 1 to 8.

10. The water purification device according to claim 9, characterized in that: The shell (50) is provided with a mounting opening (51), the mounting seat (20) is inserted into the mounting opening (51), the mounting seat (20) comprises a transfer tube (26), at least a portion of the transfer tube (26) is located on the inner side of the shell (50), and the water purification device further comprises a locking member (60) arranged on the inner side of the shell (50), the locking member (60) is connected to the transfer tube (26) to prevent the mounting seat (20) from being disengaged from the shell (50) to the outside.

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