CN218980642U - Front filter capable of resisting water hammer - Google Patents

Abstract

The utility model discloses a front filter capable of resisting water hammer, which comprises a bottle cap provided with a water inlet pipe and a water outlet pipe, and a filter bottle with the upper end connected with the bottle cap, wherein a filter assembly is arranged in the filter bottle, and a buffer mechanism for absorbing hammering force of the water hammer through elastic deformation is arranged below the filter assembly. According to the utility model, the buffer mechanism is arranged below the filter assembly, and the buffer mechanism is downwards elastically deformed to absorb the hammering force of the water hammer, so that the filter is protected, and meanwhile, the filtering efficiency and the filtering purified water flux are not influenced.

Description

Front filter capable of resisting water hammer

Technical Field

The utility model relates to the technical field of pipeline valves, in particular to a prefilter capable of resisting water hammer.

Background

The water hammer is a phenomenon that in a closed pipeline system (comprising a pump and a pre-filter), the fluid flow changes rapidly to cause larger pressure fluctuation and vibration, and the phenomenon is also called "water hammer". The instantaneous pressure can greatly exceed the normal pressure and often have destructive effects.

At present, a piston type water hammer resistant device is commonly used for a pre-filter or the strength of a bottle body is increased to resist the water hammer, but the mode of increasing the strength of the bottle body is high in cost, and the piston type water hammer resistant device is poor in effect and short in service life.

Patent number CN202220805470.5 discloses the waterproof hammer structure that freezes of leading filter, and it discloses to set up the elasticity bolster in filtering mechanism, sets up inside filtering mechanism with the elasticity bolster, and the water hammer hammering of single elasticity bolster receives its deformation size to decide, and the elasticity bolster has set up greatly and can reduced filtration efficiency and filtration water purification flux, and the elasticity bolster has set up to be little then the buffering effect of water hammer hammering power is not good.

Disclosure of Invention

The utility model aims to solve the technical problems and provide a prefilter capable of resisting water hammer.

The technical scheme adopted for solving the technical problems is as follows: the front filter capable of resisting the water hammer comprises a bottle cap provided with a water inlet pipe and a water outlet pipe, and a filter bottle with the upper end connected with the bottle cap, wherein a filter assembly is arranged in the filter bottle, and a buffer mechanism for absorbing the hammering force of the water hammer through elastic deformation is arranged below the filter assembly.

Preferably, the buffer mechanism comprises a diaphragm capable of generating elastic deformation and a spring assembly arranged below the diaphragm, and the diaphragm is arranged below the filter assembly. The membrane is made of rubber. When the water hammer impact water pressure of the bottle body reaches a certain value, the diaphragm is pressed to extrude the spring component to deform downwards to absorb the impact force, so that the bottle body is protected, and when the water hammer disappears, the diaphragm returns to the original state under the action of the spring and the self elastic force. Through the dual buffering setting of diaphragm and spring assembly, can effectively absorb water hammer hammering power.

Preferably, the spring assembly includes a spring member disposed below the diaphragm and a spring wound around the spring member and disposed below the spring member. The diaphragm is pressed to enable the spring to be downwards compressed by the spring, and the spring downwards deforms to absorb the impact force of the water hammer, so that the bottle body is protected.

Preferably, the buffer mechanism further comprises a fixing piece arranged below the filter assembly, the elastic piece is provided with a first groove, the membrane is provided with a first through hole, and the fixing piece is inserted into the first groove after passing through the first through hole. Through setting up of mounting, first recess, first through-hole for diaphragm and spring assembly position are fixed, thereby can guarantee that the diaphragm warp and can compress the spring downwards.

Preferably, a diaphragm cover is arranged on the diaphragm, a second through hole is formed in the diaphragm cover, and the fixing piece sequentially penetrates through the second through hole and the first through hole and then is inserted into the first groove. The diaphragm is fixed by the arrangement of the diaphragm cover, so that the diaphragm is prevented from moving due to extrusion deformation.

Preferably, the fixing member is a fixing screw.

Preferably, the filter flask further comprises a bottom cover connected with the filter flask, a second groove is formed in the bottom cover, and the spring is arranged in the second groove.

Preferably, the membrane is provided with a clamping part, the upper outer side of the bottom cover is provided with a concave part, and the clamping part is clamped on the concave part of the bottom cover. The diaphragm is clamped on the outer side of the bottom cover, so that the diaphragm is easy to deform due to the impact of a water hammer, and the pre-filter is protected.

Preferably, the filter assembly comprises a framework and a filter screen, and the filter screen is sleeved on the outer wall of the framework.

Preferably, a cover ring is arranged in the bottle cap, the cover ring is covered with the upper end of the framework, and the water outlet pipe is communicated with the cover ring.

The utility model has the beneficial effects that:

1. according to the utility model, the buffer mechanism is arranged below the filter assembly, so that the hammering force of the water hammer is absorbed through downward elastic deformation of the buffer mechanism, the filter is protected, and meanwhile, the filtering efficiency and the filtering purified water flux are not influenced;

2. when the bottle body receives the water hammer impact water pressure to reach a certain value, the diaphragm is pressed to extrude the spring assembly to deform downwards to absorb the impact force, so that the effect of protecting the bottle body is achieved, when the water hammer disappears, the diaphragm returns to the original state under the action of the spring and the self elastic force, and the hammering force of the water hammer can be effectively absorbed through the double buffering arrangement of the diaphragm and the spring assembly.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a cross-sectional view taken along A-A of fig. 1.

Fig. 3 is a schematic structural view of the buffer mechanism.

Fig. 4 is a schematic view of the structure of the spring assembly and the bottom cover.

Fig. 5 is a schematic structural view of the membrane.

Fig. 6 is a schematic view of the structure of the bottle cap.

In the figure: 1. bottle cap, 11, water inlet pipe, 12, water outlet pipe, 13, cover ring, 2, filter bottle, 3, bottom cover, 31, second groove, 32, concave part, 4, filter component, 41, skeleton, 42, filter net, 5, buffer mechanism, 51, diaphragm, 511, first through hole, 512, clamping part, 52, spring, 53, spring element, 531, first groove, 54, diaphragm cover, 541, second through hole, 55, fixing element,

Detailed Description

The utility model is further described below with reference to the drawings and embodiments.

As shown in fig. 1-6, the prefilter capable of resisting water hammer of the utility model comprises a bottle cap 1 provided with a water inlet pipe 11 and a water outlet pipe 12, and a filter bottle 2 with the upper end connected with the bottle cap 1, wherein a filter assembly 4 is arranged in the filter bottle 2, and a buffer mechanism 5 for absorbing the hammering force of the water hammer through elastic deformation is arranged below the filter assembly 4.

The buffer mechanism 5 includes an elastically deformable diaphragm 51 and a spring assembly provided below the diaphragm 51, the diaphragm 51 being provided below the filter assembly 4.

The spring assembly includes a spring 53 provided below the diaphragm 51 and a spring 52, the spring 52 being wound around the spring 53 and provided below the spring 53.

The buffer mechanism 5 further comprises a fixing piece 55 arranged below the filter assembly 4, the elastic piece 53 is provided with a first groove 531, the membrane 51 is provided with a first through hole 511, and the fixing piece 55 passes through the first through hole 511 and then is inserted into the first groove 531.

The membrane 51 is provided with a membrane cover 54, the membrane cover 54 is provided with a second through hole 541, and the fixing member 55 sequentially passes through the second through hole 541 and the first through hole 511 and then is inserted into the first groove 531. The fixing member 55 is a fixing screw.

The filter flask further comprises a bottom cover 3 connected with the filter flask 2, a second groove 31 is formed in the bottom cover 3, and a spring 52 is arranged in the second groove 31.

The diaphragm 51 is provided with a locking portion 512, and a recess 32 is provided on the upper outer side of the bottom cover 3, and the locking portion 512 is locked to the recess 32 of the bottom cover 3.

The filter assembly 4 comprises a framework 41 and a filter screen 42, the filter screen 42 is sleeved on the outer wall of the framework 41, and the buffer mechanism 5 is arranged below the framework 41.

The bottle cap 1 is internally provided with a cover ring 13, the cover ring 13 is covered with the upper end of the framework 41, and the water outlet pipe 12 is communicated with the cover ring 13.

In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A pre-filter capable of resisting water hammer, which is characterized in that: the device comprises a bottle cap (1) provided with a water inlet pipe (11) and a water outlet pipe (12), and a filter flask (2) with the upper end connected with the bottle cap (1), wherein a filter assembly (4) is arranged in the filter flask (2), and a buffer mechanism (5) for absorbing hammering force of a water hammer through elastic deformation is arranged below the filter assembly (4); the buffer mechanism (5) comprises a diaphragm (51) capable of generating elastic deformation and a spring assembly arranged below the diaphragm (51), and the diaphragm (51) is arranged below the filter assembly (4).

2. A water hammer resistant pre-filter as claimed in claim 1, wherein: the spring assembly comprises a spring (53) and a spring (52) which are arranged below the diaphragm (51), wherein the spring (52) is wound around the spring (53) and arranged below the spring (53).

3. A water hammer resistant pre-filter as claimed in claim 2, wherein: the buffer mechanism (5) further comprises a fixing piece (55) arranged below the filter assembly (4), a first groove (531) is formed in the elastic piece (53), a first through hole (511) is formed in the membrane (51), and the fixing piece (55) penetrates through the first through hole (511) and then is inserted into the first groove (531).

4. A pre-filter resistant to water hammer as set forth in claim 3, wherein: the membrane (51) is provided with a membrane cover (54), the membrane cover (54) is provided with a second through hole (541), and the fixing piece (55) sequentially passes through the second through hole (541) and the first through hole (511) and then is inserted into the first groove (531).

5. The water hammer resistant pre-filter of claim 4 wherein: the fixing member (55) is a fixing screw.

6. A water hammer resistant pre-filter according to claim 2 or 3 or 4, characterized in that: the filter further comprises a bottom cover (3) connected with the filter flask (2), a second groove (31) is formed in the bottom cover (3), and a spring (52) is arranged in the second groove (31).

7. A pre-filter resistant to water hammer as set forth in claim 6, wherein: the diaphragm (51) is provided with a clamping part (512), the upper outer side of the bottom cover (3) is provided with a concave part (32), and the clamping part (512) is clamped on the concave part (32) of the bottom cover (3).

8. A pre-filter resistant to water hammer according to claim 1 or 2 or 3 or 4 or 5 or 7, characterized in that: the filtering component (4) comprises a framework (41) and a filter screen (42), the filter screen (42) is sleeved on the outer wall of the framework (41), and the buffer mechanism (5) is arranged below the framework (41).

9. A water hammer resistant pre-filter as defined in claim 8, wherein: a cover ring (13) is arranged in the bottle cap (1), the cover ring (13) is covered with the upper end of the framework (41), and the water outlet pipe (12) is communicated with the cover ring (13).

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