One-way valve filter with filter element convenient to replace

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a one-way valve filter convenient for replacing a filter element, which comprises a pipeline, a replacement groove is arranged at the upper end of the outer wall of the pipeline close to the center, two sides of the inner wall of the replacement groove are slidably connected with replacement parts, the replacement parts comprise sealing blocks slidably connected with the replacement groove, and filter screens are attached to the bottoms of the sealing blocks. A limiting groove is formed in the position, close to the center, of the lower end of the outer wall of the pipeline and provided with a limiting assembly, and the limiting assembly is attached to the clamping block. According to the one-way valve filter with the filter element convenient to replace, a filter screen is placed into a replacement groove, bolts on the upper portion are rotated into a fixing column, the filter screen is connected to the upper portion of a sealing block, and then a clamping block at the bottom presses downwards to push a limiting block to contract towards the two sides; and the sealing ring in the supporting groove in the bottom of the clamping block moves to the bottom of the supporting ring, the limiting block returns to the original position through the elastic piece to fix the clamping block, and replacement is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field especially, it relates to a one -way valve filter convenient to replace filter core. BACKGROUND

[0002] Filter is indispensable on the pipeline of medium conveying device, usually installs on pressure reducing valve, pressure -relief valve, fixed water level valve, filter is composed of cylinder, stainless steel filter screen, blowdown part, transmission device and electrical control part. The water to be treated passes through the filter screen filter cartridge, and the impurities are blocked, when needing to clean, only the detachable filter cartridge is taken out, and is reloaded after treatment, therefore, it is extremely convenient to use and maintain.

[0003] At present, when using the pipeline filter, the existing filter is inconvenient to replace and disassemble the filter core, so that the maintenance personnel needs to spend a lot of time in disassembling when maintaining, which is not convenient for actual use. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research, and after a lot of creative labor, the utility model is completed.

[0005] Specifically, the technical problem to be solved by the utility model is to provide a one-way valve filter convenient to replace filter core, so as to solve the technical problem that the existing filter is inconvenient to replace and disassemble the filter core.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0007] A one-way valve filter convenient to replace filter core, comprising a pipeline, a replacement slot is formed on the outer wall of the pipeline near the center on the upper end, a replacement part is slidably connected to the inner wall of the replacement slot on both sides, a one-way valve assembly is fixedly connected to the pipeline near one end;

[0008] The replacement part comprises a sealing block slidably connected with the replacement slot, a filter screen is attached to the bottom of the sealing block, a clamping block is fixedly connected to the bottom end of the filter screen, a limiting slot is formed on the outer wall of the pipeline near the center on the lower end, a limiting assembly is arranged in the limiting slot, and the limiting assembly is attached to the clamping block.

[0009] As an improved technical scheme, a support ring is fixedly connected to the bottom of the limiting slot near the center, a support slot is formed on the bottom of the clamping block near the center, a sealing ring is arranged in the support slot, and the support ring is matched with the support slot.

[0010] As an improved technical scheme, the limiting assembly comprises a limiting block in sliding connection with the limiting groove, sliding bars are fixed on two sides of the limiting block, sliding grooves are formed in the side edges of the limiting groove close to two ends, and the sliding bars slide in the sliding grooves.

[0011] As an improved technical scheme, the elastic members are fixedly connected to the upper surface of the limiting block, and the other ends of the elastic members are fixedly connected to the side edges of the limiting groove.

[0012] As an improved technical scheme, the fixed column is fixedly connected to the upper surface of the filter screen, a threaded groove is formed in the upper surface of the fixed column, a bolt is rotatably connected in the sealing block, and the bolt rotates in the threaded groove.

[0013] As an improved technical scheme, the two fixed members are fixedly connected to the sealing block close to the upper end, and force grooves are formed in the two sides of the fixed members.

[0014] As an improved technical scheme, the one-way valve assembly comprises a flow baffle fixedly connected to the pipeline, a rotating groove is formed in the lower end of the flow baffle close to the center, rotating rods are rotatably connected to the two sides in the rotating groove, springs are fixedly connected to the rotating rods close to the two sides, the other ends of the springs are fixedly connected to the side edges of the rotating groove, a connecting strip is fixedly connected to the lower end of the outer wall of the rotating rod, and a turnover plate is fixedly connected to the other end of the connecting strip.

[0015] After the above technical scheme is adopted, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model discloses a filter screen is put into the replacement groove, the bolt rotation is used in the fixed column, the filter screen is connected above the sealing block, the clamping block bottom support groove inside sealing ring moves to the support ring bottom, the limiting block returns to the original position through the elastic member and fixes the clamping block under the condition that the convenient replacement makes the filter screen always keep in the specific position, accurately filters the impurity in the fluid.

[0017] 2. The utility model discloses a turnover plate follows the flow of water flow, and turns over outward, and the size of spring elasticity can also control the flow of water flow, and the backflow situation is avoided. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. Among them:

[0019] Figure 1 The overall structure schematic diagram of the one-way valve filter with the filter element convenient to replace of the present application.

[0020] Figure 2 The frame structure schematic diagram of the one-way valve filter with the filter element convenient to replace of the present application.

[0021] Figure 3 The replacement part structure schematic diagram of the one-way valve filter with the filter element convenient to replace of the present application.

[0022] Figure 4 The replacement part cross-section structure schematic diagram of the one-way valve filter with the filter element convenient to replace of the present application.

[0023] Figure 5 The limiting assembly structure schematic diagram of the one-way valve filter with the filter element convenient to replace of the present application.

[0024] Figure 6 The one-way valve assembly structure schematic diagram of the one-way valve filter with the filter element convenient to replace of the present application.

[0025] Explanation of reference signs:

[0026] 1, pipeline; 11, replacement groove; 12, limiting groove; 13, sliding groove;

[0027] 2, replacement part; 21, sealing block; 211, bolt; 212, fixing piece; 213, force slot; 22, fixed column; 221, threaded groove; 23, filter screen; 24, clamping block; 241, support groove; 242, sealing ring; 25, support ring; 26, limiting assembly;

[0028] 261, limiting block; 262, sliding bar; 263, elastic piece;

[0029] 3, one-way valve assembly; 31, flow blocking plate; 32, rotating groove; 33, rotating rod; 34, spring; 35, connecting strip; 36, turnover plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0032] Meanwhile, "and / or" or "and / or" appearing in the whole text means that three schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0033] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0034] As shown in Figure 3 , Figure 4 and Figure 5 , the present embodiment provides a one-way valve filter convenient for replacing filter element, the one-way valve filter convenient for replacing filter element includes pipeline 1, the outer wall of the pipeline 1 is provided with a replacement slot 11 near the center on the upper end, the replacement slot 11 is slidably connected with a replacement part 2 on the inner wall of both sides, and the pipeline 1 is fixedly connected with a one-way valve assembly 3 near one end;

[0035] The replacement part 2 includes a sealing block 21 slidably connected with the replacement slot 11, the sealing block 21 is attached with a filter screen 23 at the bottom, the filter screen 23 is fixedly connected with a clamping block 24 at the bottom end, the outer wall of the pipeline 1 is provided with a limiting slot 12 near the center at the lower end, the limiting slot 12 is provided with a limiting assembly 26, the limiting assembly 26 is attached with the clamping block 24, the filter screen 23 is put into the inside of the replacement slot 11, the limiting assembly 26 at the bottom is used for attaching and fixing the clamping block 24, and when replacing, the filter screen 23 is directly lifted upward, so that the filter screen 23 is conveniently replaced.

[0036] The bottom of the limiting groove 12 is fixedly connected with a supporting ring 25 near the center, the bottom of the clamping block 24 is provided with a supporting groove 241 near the center, the supporting groove 241 is internally provided with a sealing ring 242, the supporting ring 25 is matched with the supporting groove 241, and the sealing ring 242 in the supporting groove 241 at the bottom of the clamping block 24 is moved to the bottom of the supporting ring 25 to support and fix the clamping block 24.

[0037] The limiting assembly 26 comprises a limiting block 261 in sliding connection with the limiting groove 12, sliding strips 262 are fixedly connected to the limiting block 261, sliding grooves 13 are formed in the side edges of the limiting groove 12 near the two ends, the sliding strips 262 slide in the sliding grooves 13, and the limiting block 261 can slide in the limiting groove 12 through the sliding grooves 13.

[0038] The upper surface of the limiting block 261 is fixedly connected with an elastic piece 263, the other end of the elastic piece 263 is fixedly connected with the side edge of the limiting groove 12, and the elastic piece 263 can make the limiting block 261 shrink to the two sides under the action of an external force and return to the original position when the external force is removed.

[0039] As shown in Figure 2 , and Figure 3 The upper surface of the filter screen 23 is fixedly connected with a fixed column 22, a threaded groove 221 is formed in the upper surface of the fixed column 22, a bolt 211 is rotatably connected in the threaded groove 221, the bolt 211 is rotatably connected in the sealing block 21, the filter screen 23 is connected at the bottom of the sealing block 21 through the bolt 211.

[0040] The sealing block 21 is fixedly connected with two fixed pieces 212 near the upper end, force grooves 213 are formed in the two sides of the fixed pieces 212, and the filter screen 23 is more conveniently lifted upward when being replaced through the force grooves 213.

[0041] As shown in Figure 6 The one-way valve assembly 3 comprises a flow blocking plate 31 fixedly connected with the pipeline 1, a rotating groove 32 is formed in the lower end of the flow blocking plate 31 near the center, rotating rods 33 are rotatably connected in the rotating groove 32 at the two sides, springs 34 are fixedly connected to the rotating rods 33 near the two sides, the other ends of the springs 34 are fixedly connected with the side edges of the rotating groove 32, connecting strips 35 are fixedly connected to the lower ends of the outer walls of the rotating rods 33, the other ends of the connecting strips 35 are fixedly connected with turnover plates 36, the turnover plates 36 are turned outward along with the flow of water, the size of the elasticity of the springs 34 can control the flow of water, and the backflow is avoided.

[0042] In use, by placing the filter screen 23 into the replacement groove 11, rotating the upper bolt 211 in the fixed column 22, connecting the filter screen 23 above the sealing block 21, pressing the limiting block 261 downwards by the bottom clamping block 24 to shrink to both sides, moving the sealing ring 242 in the support groove 241 at the bottom of the clamping block 24 to the bottom of the support ring 25, and fixing the limiting block 261 to the original position by the elastic member 263 to fix the clamping block 24, when replacing, exerting force on the force groove 213 to make the filter screen 23 lift upwards as a whole, and when lifting, the limiting block 261 shrinks to both sides to cancel the restriction on the clamping block 24.

[0043] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the scope of protection of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the claims attached hereto.

Claims

1. A one-way valve filter with easy replacement of the filter cartridge, comprising a pipe (1), characterized in that: The outer wall of the pipeline (1) is provided with a replacement slot (11) near the center of the upper end, and the inner wall of the replacement slot (11) is slidably connected with a replacement part (2); the pipeline (1) is fixedly connected with a one-way valve assembly (3) near one end; The replacement part (2) comprises a sealing block (21) slidably connected with the replacement slot (11), the bottom of the sealing block (21) is attached with a filter screen (23), the bottom end of the filter screen (23) is fixedly connected with a clamping block (24), the lower end of the outer wall of the pipeline (1) is provided with a limiting slot (12) near the center, the limiting slot (12) is provided with a limiting assembly (26), and the limiting assembly (26) is attached with the clamping block (24).

2. The one-way valve filter with easy-to-change filter cartridge according to claim 1, characterized in that: The bottom of the limiting slot (12) is fixedly connected with a supporting ring (25) near the center, the bottom of the clamping block (24) is provided with a supporting slot (241) near the center, the supporting slot (241) is internally provided with a sealing ring (242), and the supporting ring (25) is matched with the supporting slot (241).

3. The one-way valve filter with easy-to-change filter cartridge according to claim 2, characterized in that: The limiting assembly (26) comprises a limiting block (261) slidably connected with the limiting slot (12), and the limiting block (261) is fixedly provided with a sliding bar (262) on both sides; the side edges of the limiting slot (12) are provided with sliding slots (13) near both ends, and the sliding bar (262) slides in the sliding slots (13).

4. The one-way valve filter with easy-to-change filter cartridge according to claim 3, characterized in that: The limiting block (261) is fixedly connected with an elastic member (263) on the upper surface, and the other end of the elastic member (263) is fixedly connected with the side edge of the limiting slot (12).

5. The one-way valve filter with easy-to-change filter cartridge according to claim 4, characterized in that: The filter screen (23) is fixedly connected with a fixed column (22) on the upper surface, the upper surface of the fixed column (22) is provided with a threaded groove (221), the threaded groove (221) is internally rotatably connected with a bolt (211), and the bolt (211) is rotatably connected in the sealing block (21).

6. The one-way valve filter with easy-to-change filter cartridge according to claim 5, characterized in that: The sealing block (21) is fixedly connected with two fixed members (212) near the upper end, and the fixed members (212) are provided with force receiving grooves (213) on both sides.

7. The one-way valve filter with easy-to-change filter cartridge according to claim 1, characterized in that: The one-way valve assembly (3) comprises a flow baffle (31) fixedly connected with the pipeline (1), the flow baffle (31) is provided with a rotating slot (32) near the center of the lower end, rotating rods (33) are rotatably connected on both sides in the rotating slot (32), springs (34) are fixedly connected with the rotating rods (33) near both sides, the other end of the spring (34) is fixedly connected with the side edge of the rotating slot (32), the outer wall of the rotating rod (33) is fixedly connected with a connecting strip (35) at the lower end, and the other end of the connecting strip (35) is fixedly connected with a turnover plate (36).

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