Filter bottle assembly and water purification device containing the same

Abstract

The present invention relates to the technical field of water purification, and aims to solve the problems of difficulty in demoulding of bottle caps and bottle bodies in the existing water purifiers during production, easy damage to threads, and difficulty in screwing during installation. The present invention provides a filter bottle assembly and a water purification device comprising the same, wherein the bottle body is provided with a first cylindrical structure and an external thread is provided on its circumferential surface, an annular step surface is provided between the first cylindrical structure and the bottle body, the bottle cap comprises a cover plate and a second cylindrical structure, an internal thread is provided on the inner circumferential surface of the second cylindrical structure, a first limiting portion is provided on the end surface of the second cylindrical structure, and a second limiting portion is provided on the annular step surface, the bottle body and the bottle cap can be limited while being matched and connected, and the mutual cooperation of the first limiting portion and the second limiting portion can remind the bottle body and the bottle cap whether they are screwed in place, so as to avoid the bottle body and the bottle cap not being screwed in place during installation, and it is not easy to cause thread stripping damage during the screwing process, thereby improving the installation efficiency and assembly strength of the filter bottle assembly.

Description

Technical Field

[0001] The invention relates to the technical field of water purification, and specifically provides a filter bottle assembly and a water purification device comprising the same. Background Art

[0002] A water purifier is a common water purification tool. The water to be treated is filtered through the filter bottle of the water purifier for purification. Therefore, the filter bottle is the core component of the entire water purifier. The bottle cap and bottle body of the existing water purifier are usually threaded. Due to the problem of thread processing matching, the bottle cap and bottle body are prone to inaccurate positioning after being tightened. In addition, the tightening strength of each person is different, which can easily cause the tightening state and position of the bottle cap and bottle body to be inconsistent after being tightened. In response to the existing defects, the prior art usually sets buckles on the threads of the bottle cap and the bottle body to lock and limit, but this type of limiting structure is difficult to demold during the production process, which can easily cause the threads of the bottle cap and the bottle body to come off, and it is difficult to tighten and loosen during the actual installation process, so the operation is very inconvenient.

[0003] Accordingly, the art needs a new filter bottle assembly and a water purification device including the same to solve the problems existing in the prior art. Summary of the invention

[0004] The present invention aims to solve the above technical problem, namely, to solve the problem that the bottle cap and the bottle body in the existing water purifier are difficult to demould during the production process, which easily causes thread damage and makes it difficult to screw during installation.

[0005] The present invention provides a filter bottle assembly, including a bottle body and a bottle cap, wherein a first cylindrical structure is formed on the bottle body, an external thread is formed on the outer circumferential surface of the first cylindrical structure, an annular step surface is formed between the first cylindrical structure and the bottle body, the bottle cap includes a cover plate and a second cylindrical structure formed on one side of the cover plate, an internal thread matching the external thread is formed on the inner circumferential surface of the second cylindrical structure, a first limiting portion is arranged on the end surface of the second cylindrical structure, and a second limiting portion matching the first limiting portion is arranged on the annular step surface, and when the bottle cap and the bottle body are assembled, the external thread is matched and connected with the internal thread, and the first limiting portion is matched and connected with the second limiting portion.

[0006] Through the above arrangement, when the first cylindrical structure is threadedly connected with the second cylindrical structure, the first limiting part can be connected in cooperation with the second limiting part, so that the bottle body and the bottle cap can be connected in cooperation and limited at the same time, and the first limiting part and the second limiting part can cooperate with each other to remind the bottle body and the bottle cap whether they are screwed in place, so as to avoid the situation that the bottle body and the bottle cap are not screwed in place during the installation process, which leads to the situation that they are easy to loosen during transportation or use, and when the filter bottle assembly is subjected to a water hammer test, the first limiting part and the second limiting part can be connected in cooperation to play a role of stopping retreat, which is helpful to pass the water hammer test. The first limiting part is arranged on the end face of the second cylindrical structure, and the second limiting part is arranged on the annular step surface, so as to avoid the situation that the bottle cap and the bottle body are difficult to demould and the thread is damaged during the production process, and it is not easy to cause the thread to be damaged during the tightening process, and it is relatively labor-saving to tighten and loosen, the structure is simple and easy to install, and the installation efficiency and assembly strength of the filter bottle assembly are improved.

[0007] In the preferred technical solution of the above-mentioned filter bottle assembly, one of the first limiting part and the second limiting part is a protrusion, and the other is a groove matching the shape of the protrusion, and the protrusion is configured to be able to retract when subjected to squeezing force, and the protrusion returns to its initial state when the squeezing force disappears.

[0008] Through the above-mentioned arrangement, during the installation process of the first cylindrical structure and the second cylindrical structure, the protrusion can retract when subjected to extrusion force, and when the first cylindrical structure and the second cylindrical structure are tightened to a preset locking position, the protrusion returns to its initial state and is accommodated in the groove. The mutual cooperation between the protrusion and the groove can remind the first cylindrical structure and the second cylindrical structure whether they are tightened in place, thereby completing the installation and limiting of the bottle body and the bottle cap.

[0009] In the preferred technical solution of the above filter bottle assembly, the protrusion is an elastic block.

[0010] Through the above arrangement, during the process of tightening the first cylindrical structure and the second cylindrical structure, it is convenient to disassemble and assemble the bottle body and the bottle cap, and can also be limited and stopped.

[0011] In the preferred technical solution of the above filter bottle assembly, the shape of the protrusion and the groove is semi-cylindrical.

[0012] Through the above arrangement, when the bottle body and the bottle cap are screwed together, the friction force when the protrusion contacts the annular step surface is small, and the bottle cap is more labor-saving and convenient to screw.

[0013] In the preferred technical solution of the above-mentioned filter bottle assembly, an inclined groove connected to the groove is formed at a position adjacent to the groove on the plane where the groove is located, and the depth of the inclined groove gradually increases from an end away from the groove to an end connected to the groove, so that when the bottle cap is screwed to the first cylindrical structure, the protrusion slides into the groove along the inclined groove.

[0014] Through the above arrangement, when the first cylindrical structure and the second cylindrical structure are about to be tightened to the preset locking position, the protrusion can slide directly into the groove along the inclined groove along the tightening direction, making the cooperation between the protrusion and the groove smoother and more convenient.

[0015] In the preferred technical solution of the above-mentioned filter bottle assembly, the inclination of the inclined groove is the same as the inclination of the internal thread and the external thread, and the internal thread, the external thread, the protrusion, the groove and the inclined groove are arranged as follows: during the process of screwing the bottle cap and the first cylindrical structure together, the protrusion first contacts a position on the plane where the groove is located on the side of the inclined groove away from the groove, then slides a distance along the plane where the groove is located, then slides into the inclined groove, and finally slides into the groove through the inclined groove.

[0016] Through the above-mentioned arrangement, the inclination of the inclined groove is the same as that of the internal thread and the external thread. In the process of screwing the bottle cap and the first cylindrical structure, the protrusion first contacts the annular surface to generate a certain amount of compression. In the process of further sliding into the inclined groove, the compression amount of the protrusion no longer increases, making it easier for the protrusion to slide into the groove, further improving the assembly efficiency of the first cylindrical structure and the second cylindrical structure and the smoothness of the cooperation between the protrusion and the groove.

[0017] In the preferred technical solution of the above-mentioned filter bottle assembly, the slope of the inclined groove is smaller than the slopes of the internal thread and the external thread, and the internal thread, the external thread, the protrusion, the groove and the inclined groove are arranged as follows: during the process of screwing the bottle cap and the first cylindrical structure, the protrusion first contacts with a position on the plane where the groove is located on the side of the inclined groove away from the groove, then slides along the plane where the groove is located for a distance and then slides into the inclined groove, and finally slides into the groove through the inclined groove, or during the process of screwing the bottle cap and the first cylindrical structure, the protrusion first contacts with the inclined groove and then slides into the groove through the inclined groove.

[0018] Through the above-mentioned arrangement, the inclination of the inclined groove is smaller than the inclination of the internal thread and the external thread. During the process of screwing the bottle cap and the first cylindrical structure together, the interference amount increases continuously when the protrusion slides into the groove in the inclined groove, and the limiting tightness of the protrusion and the groove is higher, thereby improving the fit between the protrusion and the groove.

[0019] In the preferred technical solution of the above-mentioned filter bottle assembly, a first alignment mark is provided on the outer circumferential surface of the second cylindrical structure, and a second alignment mark is provided on the side of the bottle body. When the first limiting portion is cooperatively connected with the second limiting portion, the first alignment mark is aligned with the second alignment mark.

[0020] Through the above arrangement, the alignment of the first alignment mark and the second alignment mark can be used to indicate whether the first cylindrical structure and the second cylindrical structure are screwed in place, thereby improving the installation accuracy and assembly efficiency of the bottle body and the bottle cap.

[0021] In the preferred technical solution of the above-mentioned filter bottle assembly, a third alignment mark is provided on the outer side surface of the cover plate, and a fourth alignment mark is provided on the whole cover plate of the water purification equipment adapted by the filter bottle assembly. When the filter bottle assembly and the whole cover plate are installed in place, the third alignment mark is aligned with the fourth alignment mark.

[0022] Through the above-mentioned setting, the alignment of the third alignment mark and the fourth alignment mark can be used to prompt whether the cover plate and the entire cover plate of the water purification equipment are screwed into place, thereby improving the installation accuracy and assembly efficiency of the cover plate and the entire cover plate of the water purification equipment.

[0023] On the other hand, the present invention also provides a water purification device, which includes the filter bottle assembly in any of the above technical solutions.

[0024] It should be noted that the water purification equipment has all the technical effects of the above-mentioned filter bottle assembly, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0026] Figure 1 It is an exploded view of the filter bottle assembly and the whole machine cover assembly of the water purification equipment in one embodiment of the present invention;

[0027] Figure 2 is a cross-sectional view of a filter bottle assembly in one embodiment of the present invention;

[0028] Figure 3 is a schematic structural diagram of a filter bottle assembly in one embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of the assembly of the filter bottle assembly and the whole machine cover plate in one embodiment of the present invention;

[0030] List of reference numerals:

[0031] 1. Bottle body; 11. First cylinder; 12. Annular step surface; 2. Bottle cap; 21. Cover plate; 22. Second cylinder; 31. First limiting portion; 32. Second limiting portion; 33. Inclined groove; 41. First alignment mark; 42. Second alignment mark; 43. Third alignment mark; 44. Fourth alignment mark; 5. Whole machine cover plate. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0033] It should be noted that in the description of the present invention, the terms "upper", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Based on the problem mentioned in the background technology that the bottle cap and the bottle body in the existing water purifier are difficult to demould during the production process, which easily causes thread damage and makes it difficult to screw during installation, the present invention provides a filter bottle assembly and a water purification device comprising the same, which indicates whether the bottle body and the bottle cap are screwed in place through the mutual cooperation of a first limit part and a second limit part, so as to avoid the situation in which the bottle body and the bottle cap are not screwed in place during installation, resulting in loosening during transportation or use, and aims to improve the installation efficiency and assembly strength of the filter bottle assembly.

[0036] Refer to the following Figures 1 to 4 The filter bottle assembly of the present invention and the water purification device including the same are described in detail. Figure 1 It is an exploded view of the filter bottle assembly and the whole machine cover assembly of the water purification equipment in one embodiment of the present invention; Figure 2 is a cross-sectional view of a filter bottle assembly in one embodiment of the present invention;

[0037] Figure 3is a schematic structural diagram of a filter bottle assembly in one embodiment of the present invention; Figure 4 It is a schematic diagram of the assembly of the filter bottle assembly and the whole machine cover plate in one embodiment of the present invention.

[0038] Specifically, Figures 1 to 4 As shown, the filter bottle assembly includes a filter bottle, and a filter element (not shown in the figure) is placed in the filter bottle. The filter bottle includes a bottle body 1 and a first cylinder 11 arranged on the bottle body 1. The bottle body 1 is a cylindrical structure and can also be a square structure. An external thread is formed on the outer circumferential surface of the first cylinder 11, and an annular step surface 12 is formed between the first cylinder 11 and the bottle body 1. The filter bottle assembly also includes a bottle cap 2, and the bottle cap 2 includes a cover plate 21. A second cylinder 22 is formed on one side of the cover plate 21. An internal thread matching the external thread is formed on the inner circumferential surface of the second cylinder 22, and a sealing ring is provided at the upper end of the internal thread. A first limiting portion 31 is provided on the end surface of the second cylinder 22, and a second limiting portion 32 cooperating with the first limiting portion 31 is provided on the annular step surface 12, wherein the first limiting portion 31 is a semi-cylindrical elastic protrusion, and the second limiting portion 32 is a semi-cylindrical groove cooperating with the first limiting portion 31. An inclined groove 33 connected to the groove is formed on the plane where the groove is located adjacent to the groove. The depth of the inclined groove 33 gradually increases from the end away from the groove to the end connected to the groove, and the inclination of the inclined groove 33 is the same as the inclination of the internal thread and the external thread.

[0039] like Figure 2 and Figure 3 As shown, a first alignment mark 41 is provided on the outer circumferential surface of the second cylinder 22, and a second alignment mark 42 is provided on the side of the bottle body 1. When the first limiting portion 31 and the second limiting portion 32 are connected in cooperation, the first alignment mark 41 is aligned with the second alignment mark 42, wherein the first alignment mark 41 and the second alignment mark 42 are rectangular marks. It should be noted that the first alignment mark 41 and the second alignment mark 42 can also be represented by an indicating arrow and an in-position mark or marks of other shapes, respectively.

[0040] Reference Figure 1 and Figure 4 , a third alignment mark 43 is provided on the outer surface of the cover plate 21, and a fourth alignment mark 44 is provided on the complete cover plate 5 adapted to the bottle body 1. When the bottle body 1 and the complete cover plate 5 are assembled, the third alignment mark 43 is aligned with the fourth alignment mark 44, wherein the third alignment mark 43 and the fourth alignment mark 44 are respectively an indication arrow and an in-place mark. It should be noted that the third alignment mark 43 and the fourth alignment mark 44 can also be represented by rectangular marks or marks of other shapes.

[0041] Specifically, during the tightening process of the first cylinder 11 on the bottle body 1 and the second cylinder 22 on the cover plate 21, when the first cylinder 11 and the second cylinder 22 are close to the preset locking position, the elastic protrusion first contacts the annular step surface 12, is deformed by the pressure and retracts, and then the elastic protrusion enters the inclined groove 33 and slides. During the sliding process on the inclined groove 33, the compression amount of the elastic protrusion no longer increases, the friction between the external thread of the first cylinder 11 and the internal thread of the second cylinder 22 increases, and the tightening resistance at this time also increases. When the tightening continues, the elastic protrusion returns to its initial state. The first cylinder 11 and the second cylinder 22 are limited by the first alignment mark 41 and the second alignment mark 42. At this time, the first alignment mark 41 and the second alignment mark 42 are aligned, and the end face of the first cylinder 11 will contact and squeeze the sealing ring, thereby playing a sealing role to ensure that the filter bottle will not leak. At this point, the bottle body 1 and the bottle cap 2 are tightened and limited. At the same time, the third alignment mark 43 on the cover plate 21 is aligned with the fourth alignment mark 44, so that the cover plate 21 and the whole machine cover plate 5 of the water purifier are assembled. That is, in this embodiment, in addition to ensuring that the bottle body 1 and the bottle cap 2 are tightened in place by the first limiting part 31 and the second limiting part 32, it is also possible to remind and ensure that the bottle body 1 and the bottle cap 2 are tightened in place by visually placing them in place.

[0042] When the first cylinder 11 and the second cylinder 22 are tightened, the first limit portion 31 and the second limit portion 32 can cooperate with each other to indicate whether the bottle body 1 and the bottle cap 2 are tightened in place, so as to avoid the situation where the bottle body 1 and the bottle cap 2 are not tightened in place, resulting in looseness during transportation or use. When the filter bottle assembly is subjected to a water hammer test, the first limit portion 31 and the second limit portion 32 cooperate with each other to limit and stop retreat, which is convenient for passing the water hammer test and improves the installation efficiency and assembly strength of the filter bottle assembly. The above-mentioned arrangement makes the replacement of the filter bottle more labor-saving and convenient, and the assembly of the various components of the filter bottle is simple and stable, and the connection is tight and the connection precision is high.

[0043] It should be noted that the structure of the first limiting portion 31 and the second limiting portion 32 is only a preferred arrangement, and the first limiting portion 31 and the second limiting portion 32 may also be arranged in an arc-shaped structure, or the material of the first limiting portion 31 may also be soft plastic, etc. In a feasible implementation, the first limiting portion 31 is a groove, and the second limiting portion 32 is a convex block, as long as the first limiting portion 31 and the second limiting portion 32 can be snapped together.

[0044] It should be noted that the above-mentioned setting of the inclined groove 33 is only a feasible implementation method, and the inclination of the inclined groove 33 may be different from the inclination of the internal thread and the external thread, and those skilled in the art can flexibly set it in practical applications. In another feasible implementation method, the inclination of the inclined groove 33 is less than the inclination of the internal thread and the external thread, for example, the inclination of the inclined groove 33 is less than the inclination of the internal thread and the external thread by 5°, and when the first cylinder 11 and the second cylinder 22 are close to the preset locking position, the elastic protrusion can first contact with the annular step surface 12, so that the elastic protrusion slides from the plane where the groove is located into the groove under the action of the inclined groove 33 to achieve the limit of the elastic protrusion, or when the first cylinder 11 and the second cylinder 22 are close to the preset locking position, the elastic protrusion directly contacts with the inclined groove 33, and after the elastic protrusion contacts with the inclined groove 33, it directly slides into the groove through the inclined groove 33 to achieve the clamping, and the first limiting portion 31 and the second limiting portion 32 are matched with each other.

[0045] In another feasible embodiment, the first limiting portion 31 can also be a spring arranged on the end surface of the second cylinder 22 and a protrusion connected to the spring. During the tightening process of the first cylinder 11 and the second cylinder 21, the spring is squeezed, driving the protrusion to retract. When the first cylinder 11 and the second cylinder 21 are tightened to the preset locking position, the spring drives the protrusion to pop out and fully embed into the groove, completing the mutual cooperation between the first limiting portion 31 and the second limiting portion 32.

[0046] It should be noted that the present invention also provides a water purification device, which includes the filter bottle assembly in the above embodiment.

[0047] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A filter bottle assembly, characterized in that: The bottle body comprises a bottle body and a bottle cap, wherein a first cylindrical structure is formed on the bottle body, an external thread is formed on the outer circumferential surface of the first cylindrical structure, an annular step surface is formed between the first cylindrical structure and the bottle body, the bottle cap comprises a cover plate and a second cylindrical structure formed on one side of the cover plate, an internal thread matching the external thread is formed on the inner circumferential surface of the second cylindrical structure, a first limiting portion is arranged on the end surface of the second cylindrical structure, and a second limiting portion matching the first limiting portion is arranged on the annular step surface, When the bottle cap and the bottle body are assembled, the external thread is connected with the internal thread, and the first limiting portion is connected with the second limiting portion; One of the first limiting portion and the second limiting portion is a convex block, and the other is a concave groove matching the shape of the convex block, and the convex block is configured to be able to retract when subjected to a squeezing force, and to return to an initial state when the squeezing force disappears; An oblique groove connected to the groove is formed at a position adjacent to the groove on the plane where the groove is located, and the depth of the oblique groove gradually increases from an end away from the groove to an end connected to the groove, so that when the bottle cap is screwed to the first cylindrical structure, the protrusion slides into the groove along the oblique groove.

2. The filter bottle assembly according to claim 1, characterized in that: The convex block is an elastic block.

3. The filter bottle assembly according to claim 1, characterized in that: The projection and the groove are in a semi-cylindrical shape.

4. The filter bottle assembly according to claim 1, characterized in that: The inclination of the inclined groove is the same as that of the internal thread and the external thread, and the internal thread, the external thread, the protrusion, the groove and the inclined groove are arranged so that: during the process of screwing the bottle cap and the first cylindrical structure together, the protrusion first contacts a position on the plane where the groove is located and located on the side of the inclined groove away from the groove, then slides along the plane where the groove is located for a distance and then slides into the inclined groove, and finally slides into the groove through the inclined groove.

5. The filter bottle assembly according to claim 1, characterized in that: The inclination of the inclined groove is smaller than that of the internal thread and the external thread, and the internal thread, the external thread, the projection, the groove and the inclined groove are arranged such that: during the process of screwing the bottle cap and the first cylindrical structure, the projection first contacts a position on the plane where the groove is located and located on a side of the inclined groove away from the groove, then slides a distance along the plane where the groove is located, slides into the inclined groove, and finally slides into the groove through the inclined groove. Alternatively, during the process of screwing the bottle cap and the first cylindrical structure together, the protrusion first contacts the inclined groove and then slides into the groove through the inclined groove.

6. The filter bottle assembly according to any one of claims 1 to 3, characterized in that: A first alignment mark is arranged on the outer circumferential surface of the second cylindrical structure, and a second alignment mark is arranged on the side of the bottle body. When the first limiting portion is connected with the second limiting portion, the first alignment mark is aligned with the second alignment mark.

7. The filter bottle assembly according to any one of claims 1 to 3, characterized in that: A third alignment mark is provided on the outer side surface of the cover plate, and a fourth alignment mark is provided on the whole cover plate of the water purification equipment to which the filter bottle assembly is adapted. When the filter bottle assembly and the whole cover plate are installed in place, the third alignment mark is aligned with the fourth alignment mark.

8. A water purification device, characterized in that: The water purification device is equipped with a filter bottle assembly according to any one of claims 1 to 7.

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