Buffer mechanism convenient to replace and filter bottle

Abstract

The utility model relates to the technical field of water purification equipment, in particular to a buffer mechanism convenient to replace and a filter flask, the buffer mechanism is suitable for being arranged in the filter flask, the buffer mechanism comprises a cover plate, a cylinder body and a sealing plate, a through hole is formed in the cover plate, the cover plate and the cylinder body form a detachable mechanism shell, the sealing plate is arranged in the cylinder body, and the sealing plate is arranged in the cylinder body. The sealing plate and the inner wall of the cylinder define a closed buffer space, and the sealing plate is limited in the mechanism shell to move up and down repeatedly. When the water hammer effect pressure of the buffering mechanism is increased, the sealing plate moves downwards in the mechanism shell to extrude the closed buffering space, and after the water hammer effect or the freezing effect disappears, the extruded buffering space pushes the sealing plate upwards till the inside and outside air pressure and water pressure are balanced, and the buffering mechanism serves as a whole, so that the sealing effect is good. The anti-freezing filter bottle can be freely detached and arranged in different filter bottles, so that the water hammer effect in the filter bottle is eliminated, meanwhile, the anti-freezing effect can be achieved, and the anti-freezing filter bottle can be conveniently replaced in new and old filter bottles.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a buffer mechanism and a filter bottle which are convenient to replace. Background Technique

[0002] The filter bottle filter is the first-stage coarse filtration equipment for the whole-house water use, which can filter sediment, rust, algae and other large-particle impurities in tap water. It is generally installed behind the water meter in the water inlet pipeline, but generally faces two effects that are easy to damage it, namely, the water hammer effect and the freezing effect:

[0003] The water hammer effect is a phenomenon caused by a sudden increase or pressure fluctuation of the fluid, which means that when water flows in a pipeline, if the valve downstream of the pipeline (i.e., each faucet in the home) is quickly closed, the flowing water has the inertial momentum, so the inertial momentum of the water flow continues to push forward, causing the pressure in the pipe to rise rapidly and damaging the pipeline;

[0004] Freezing effect: In a low-temperature environment, the water in the filter is prone to freeze. After freezing, the volume of the water expands and the pressure in the filter bottle increases, resulting in the filter being damaged and affecting the user's use.

[0005] There are some new models of filter bottles on the market that already contain anti-water hammer or anti-freezing structures, but these structures have many inconveniences. For example, most of them are integrated with the filter bottle and cannot be replaced after being damaged; or they can only be used when there is a specific structure during the development period, so this buffer mechanism cannot be used for old models of filter bottles. Content of the Utility Model

[0006] To solve the problems in the above background technique, the present application provides a buffer mechanism and a filter bottle that are convenient to replace, which can eliminate the water hammer effect inside the filter bottle, have an anti-freezing effect at the same time, and can be conveniently replaced in both new and old filter bottles without affecting the original structure of the filter bottle.

[0007] To achieve the above object, the technical solution provided by the present application is as follows:

[0008] A buffer mechanism that is convenient to replace, suitable for being arranged inside a filter bottle. The buffer mechanism includes a cover plate, a cylinder body and a sealing plate. A through hole is opened on the cover plate. The cover plate and the cylinder body form a detachable mechanism shell. The sealing plate is arranged inside the cylinder body. The sealing plate and the inner wall of the cylinder body enclose a closed buffer space, and the sealing plate is restricted to move up and down repeatedly inside the mechanism shell.

[0009] Compared with the prior art, in the mechanism of the present utility model, water / ice enters the through hole on the cover plate due to the water hammer effect or freezing effect, squeezes the sealing plate through the through hole, and the sealing plate moves downward in the mechanism housing to squeeze the sealed buffer space. After the water hammer effect or freezing effect disappears, the squeezed buffer space pushes the sealing plate upward until the internal and external air pressures and water pressures are balanced. Moreover, as a whole, the buffer mechanism can be arbitrarily disassembled and installed in different filter bottles, thereby achieving the technical effects of eliminating the water hammer effect inside the filter bottle, having an anti-freezing effect at the same time, and being able to be conveniently replaced in both new and old filter bottles.

[0010] Preferably, at least one elastic member is arranged in the buffer space, and both ends of the elastic member respectively abut against the sealing plate and the bottom of the cylinder body. Based on the above solution, the volume in the buffer space can be maintained when there is no water hammer effect. After the water hammer effect ends, the compressed elastic member can restore the compressed volume of the buffer space more quickly.

[0011] Specifically, at least one guide post is arranged in the buffer space. The guide post is rigidly connected to the sealing plate, and a spring is sleeved on the guide post. Both ends of the spring respectively abut against the sealing plate and the bottom of the cylinder body, so that the guide post moves up and down repeatedly in the buffer space along with the sealing plate. Through the guide post rigidly connected to the sealing plate, it can ensure that the sealing plate will not deviate and leak air or water when moving up and down in the buffer space.

[0012] Furthermore, a convex post for the guide post to insert is opened at the bottom of the cylinder body, the spring is sleeved on the convex post, and a convex post groove is opened in the middle of the convex post, and the guide post is inserted into the convex post groove. On the one hand, the convex post can be used for the guide post to insert to facilitate the limit of the up and down movement of the guide post, and on the other hand, it is used for the spring to be sleeved for limit fixation.

[0013] Furthermore, a groove is opened in the outer circle of the sealing plate in contact with the inner wall of the cylinder body along the circumference, and a sealing ring is arranged in the groove. By arranging the sealing ring, the tightness of the contact between the sealing plate and the cylinder body is further strengthened to ensure the tightness inside the buffer space.

[0014] Furthermore, the elastic member is a spring.

[0015] Furthermore, corresponding fixing holes are opened on both the cover plate and the cylinder body, and they are fixedly connected by bolts and nuts.

[0016] A filter bottle includes the above buffer mechanism arranged in the filter bottle. The chamber space for containing water in the filter bottle is not communicated with the buffer space, and the mechanism housing is in contact with the fluid in the chamber space.

[0017] Furthermore, the initial air pressure in the buffer space is the atmospheric pressure.

[0018] Further, the buffer mechanism is arranged at the bottom of the chamber space of the filter bottle.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. The buffer space is spatially isolated from the chamber space in the filter bottle. The sealing plate is pressed down by the water hammer effect from the chamber space to absorb the pressure surge brought by the water hammer effect. After the water hammer effect disappears, the sealing plate moves upward to return to the initial position under the high pressure in the buffer space and the compression rebound of the elastic member, realizing automatic adjustment.

[0021] 2. In the case of freezing effect, the sealing plate is also squeezed by the expansion of the frozen water in the chamber space and compresses the buffer space downward to relieve the freezing effect.

[0022] 3. The mechanism housing separates the buffer space from the chamber space, and there is no fixed disassembly relationship between them. During use, only the buffer mechanism needs to be placed in the chamber space of the filter bottle, with strong applicability, convenient replacement and popularization. Description of the Drawings

[0023] Figure 1 is the structural cross-sectional view of the filter bottle in Embodiment 2 of the present utility model;

[0024] Figure 2 is the overall structure diagram of the buffer mechanism in Embodiment 1 of the present utility model;

[0025] Figure 3 is the structural cross-sectional view of the buffer mechanism in the initial state in Embodiment 1 of the present utility model;

[0026] Figure 4 is the structural cross-sectional view of the buffer mechanism in the pressurized state in Embodiment 1 of the present utility model.

[0027] Wherein, the reference numerals in the figures are: 1 - filter bottle, 2 - chamber space, 3 - buffer mechanism, 4 - buffer space, 5 - cover plate, 51 - through hole, 52 - fixing hole, 6 - cylinder body, 7 - sealing plate, 71 - groove, 8 - spring, 9 - guide post, 10 - convex post, 101 - convex post groove, 11 - bolt, 12 - nut, 13 - sealing ring. Detailed Embodiment

[0028] The technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the present utility model. The components of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figure 1-2 , to eliminate the sudden increase in pressure inside the filter device pipes caused by water hammer effect and freezing effect in the filter bottle, and to be applicable to the replacement of different new and old filter bottles. The present utility model provides a buffer mechanism for convenient replacement. The entire buffer mechanism 3 can be directly placed as a whole inside the filter bottle 1. According to the material and its own gravity of the buffer mechanism 3, generally, the buffer mechanism 3 is placed at the bottom of the chamber space 2 of the filter bottle 1, without the need to specifically integrally fix or detachably fix the buffer mechanism 3 to the specific structure inside the filter bottle 1, facilitating the application of the buffer mechanism 3 to various model specifications of filter bottles.

[0031] The buffer mechanism 3 includes a mechanism shell formed by enclosing a cover plate 5 and a cylinder 6. Among them, a through hole 51 is opened in the center of the cover plate 5, and a plurality of fixing holes 52 are also opened on the cover plate 5. Corresponding fixing holes 52 are also opened on the cylinder 6. In this embodiment, the fixing holes 52 are counterbore holes, which facilitate the bolt 11 to pass through the fixing holes 52 and be screwed with the nut 12 to fixedly connect the cover plate 5 and the cylinder 6; a sealing plate 7 that is in close contact with the inner wall of the cylinder 6 is further provided inside the cylinder 6. Among them, the sealing plate 7 is located at the top of the cylinder 6 in the initial state when not affected by the water hammer effect and is restricted by the cover plate 5 and cannot move upward anymore.

[0032] Please refer to Figure 3 for the structural cross-sectional view of the buffer mechanism in the initial state. The space between the sealing plate 7 and the cylinder 6 is the buffer space 4, and the space in the filter bottle 1 for accommodating the fluid is the chamber space 2. The chamber space 2 and the buffer space 4 are not connected. To enhance the airtightness inside the buffer space 4, a circumferential groove 71 is opened on the side surface of the sealing plate 7 in contact with the inner wall of the cylinder 6. Multiple grooves 71 can be provided according to the thickness of the sealing plate 7. Sealing rings 13 are arranged in the grooves 71 to improve the airtightness between the sealing plate 7 and the inner wall of the cylinder 6 and ensure the relative isolation between the buffer space 4 and the chamber space 2.

[0033] In the initial state, the air pressure in the buffer space 4 is the atmospheric pressure. There are multiple integrally formed guide posts 9 extending downward at the bottom of the sealing plate 7. In this embodiment, the guide posts 9 and the sealing plate 7 are integrally formed, and they can also be in other detachable fixing forms, and the materials of the two can be different. For example, the sealing plate 7 is made of metal and the guide posts 9 are made of plastic. The bottom of the cylinder 6 is convexly provided with multiple convex posts 10 for the guide posts 9 to be inserted. The middle of the convex post 10 is a hollow convex post groove 101 and the convex post groove 101 does not penetrate the bottom of the cylinder 6. A spring 8 is also sleeved on the outer periphery of the convex post 10. The two ends of the spring 8 respectively abut against the lower end of the sealing plate 7 and the bottom of the cylinder 6. Thus, in the initial state, the sealing plate 7 is mainly supported by the spring 8 in the buffer space 4 and abuts against the cover plate 5, and the air pressure in the buffer space 4 is the atmospheric pressure, ensuring that the buffer space 4 maintains the largest space size.

[0034] Please refer to Figure 4 The structural cross-sectional view of the buffer mechanism in the compressed state. When the buffer mechanism 3 placed in the filter bottle 1 is subjected to an increased pressure caused by a water hammer effect or a freezing effect, water / ice will flow through the through hole 51 and squeeze the sealing plate 7. The sealing plate 7 is pressed downward, thereby squeezing the spring 8 and the air in the buffer space 4 to achieve a buffering effect. When the water hammer effect or the freezing effect disappears, the compressed spring 8 and the air in the buffer space 4 will recover and at the same time push the sealing plate 7 upward to return from the compressed state to the initial state.

[0035] Embodiment 2

[0036] The present utility model further includes a filter bottle. The filter bottle 1 includes the above buffer mechanism 3 provided in the filter bottle 1. The water-containing chamber space 2 in the filter bottle 1 is not communicated with the buffer space 4. The mechanism housing is in contact with the fluid in the chamber space 2. The buffer mechanism 3 is placed at the bottom of the filter bottle 1. The air pressure in the buffer space 4 is the atmospheric pressure, or when the chamber space 2 in the filter bottle 1 is relatively deep, it is slightly higher than the atmospheric pressure. The supporting elastic force of the spring 8 is set such that the supported sealing plate 7 is in the initial state position.

[0037] The buffer space 4 of the present utility model is kept spatially isolated from the chamber space 2 in the filter bottle 1. The sealing plate 7 is pressed downward by the water hammer effect from the chamber space 2 to absorb the pressure surge brought by the water hammer effect. After the water hammer effect disappears, the sealing plate 7 moves upward to return to the initial position under the high pressure in the buffer space 4 and the compression rebound of the elastic member to achieve automatic adjustment. In the case of a freezing effect, the sealing plate 7 is also squeezed by the expansion of the water frozen in the chamber space and compresses the buffer space 4 downward to relieve the freezing effect. The mechanism housing separates the buffer space 4 from the chamber space 2, and there is no fixed disassembly relationship between the two. When in use, only the buffer mechanism 3 needs to be placed in the chamber space 2 of the filter bottle 1, which has strong applicability and is convenient for replacement and popularization.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved. In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A conveniently replaceable buffer mechanism, suitable for being arranged in a filter bottle, characterized in that: The buffer mechanism (3) comprises a cover plate (5), a cylinder (6) and a sealing plate (7); a through hole (51) is provided on the cover plate (5); the cover plate (5) and the cylinder (6) form a detachable mechanism shell; the sealing plate (7) is arranged in the cylinder (6); the sealing plate (7) and the inner wall of the cylinder (6) together form a closed buffer space (4); the sealing plate (7) is restricted from repeatedly moving up and down in the mechanism shell.

2. The buffer mechanism according to claim 1, characterized in that: At least one elastic member is arranged in the buffer space (4), and two ends of the elastic member abut against the sealing plate (7) and the bottom of the cylinder (6) respectively.

3. The buffer mechanism according to claim 2, characterized in that: The elastic member is a spring (8).

4. The buffer mechanism according to claim 1, characterized in that: At least one guide column (9) is arranged in the buffer space (4), the guide column (9) is rigidly connected to the sealing plate (7), a spring (8) is sleeved on the guide column (9), two ends of the spring (8) respectively abut against the sealing plate (7) and the bottom of the cylinder (6), so that the guide column (9) moves up and down repeatedly in the buffer space (4) along with the sealing plate (7).

5. The buffer mechanism according to claim 4, characterized in that: A convex column (10) is provided at the bottom of the cylinder (6), the spring (8) is sleeved on the convex column (10), a convex column groove (101) is provided in the middle of the convex column (10), and the guide column (9) is inserted into the convex column groove (101).

6. The buffer mechanism according to claim 1, characterized in that: The outer ring of the sealing plate (7) in contact with the inner wall of the cylinder (6) is provided with a groove (71) along the circumferential direction, and a sealing ring (13) is arranged in the groove (71).

7. The buffer mechanism according to claim 1, characterized in that: The cover plate (5) and the cylinder body (6) are both provided with corresponding fixing holes (52), and are fixedly connected by passing bolts (11) and nuts (12) through the fixing holes (52).

8. A filter bottle, wherein a buffer mechanism is provided inside the filter bottle, characterized in that: The buffer mechanism is the buffer mechanism (3) described in any one of claims 1 to 7, the chamber space (2) containing the fluid in the filter bottle (1) is not connected to the buffer space (4), and the mechanism shell is in contact with the fluid in the chamber space (2).

9. The filter bottle according to claim 8, characterized in that: The initial air pressure in the buffer space (4) is atmospheric pressure.

10. The filter bottle according to claim 8, characterized in that The buffer mechanism (3) is arranged at the bottom of the chamber space (2) of the filter bottle (1).

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