Filter screen convenient to replace for filter

Abstract

The utility model relates to the technical field of filters, and discloses a filter screen convenient to replace for a filter, which comprises an equipment shell, the center of the upper surface of the equipment shell is fixedly communicated with a feed pipe, the lower surface of the equipment shell is fixedly communicated with a discharge pipe, two limiting components are arranged in the equipment shell, and the two limiting components are arranged in the equipment shell. A fixing groove is formed in the outer wall of the left side of the equipment shell, and a concentric-square-shaped groove is formed in the position, close to the fixing groove, of the left side of the equipment shell. According to the filter screen convenient to replace for the filter, through arrangement of a replacement structure, a hydraulic cylinder is started and drives a hydraulic rod to move upwards, so that the bottom end of the hydraulic rod is separated from the interiors of a first limiting groove and a limiting hole, and then a pull ring is pulled outwards; the pull ring drives the movable plate, the connecting plate and the filter screen body to be separated from the interiors of the U-shaped limiting plate and the equipment shell, so that the filter screen body is convenient to replace, and the problem that the filter screen in the filter is inconvenient to replace originally is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field, concretely is a filter net convenient to replace for filter. BACKGROUND

[0002] Filter is the equipment that realizes solid liquid separation with porous filter. Filter is applied to chemical industry, petroleum, pharmacy, light industry, food, ore dressing, coal and water treatment department. Filter is a new type of filtration system, and has novel structure, small size, simple and convenient operation, high efficiency, closed operation and strong applicability.

[0003] The filter net convenient to replace in the Chinese utility model patent application publication disclosure CN210631737U is disclosed, although in the utility model, the filter net is replaced by controlling the forward and reverse rotation of the guide motor to control the in and out of the filter net, the problem that the original filter net in the filter is inconvenient to replace is solved, and the filter net is prevented from shifting due to the fact that the lower end face of the filter net is provided with sliding strips on the left and right sides, and the upper end face of the supporting sliding plate is provided with a sliding groove. However, when preparing to replace the filter net, the material filtered may be stuck between the inner wall of the filter main body and the guide wheel, causing the guide wheel to be unable to rotate. In addition, the spring may rust due to long-term contact with liquid or non-use, making it difficult to open the net door, thereby making it difficult to replace the filter net. At the same time, the filter net may shift or shake up and down during equipment operation, causing the filter net to fall out of the sliding groove, reducing the filtering efficiency, and the utility model has poor practicability and is inconvenient to limit the filter net. Therefore, the utility model provides a filter net convenient to replace for filter to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a filter net convenient to replace for filter, which solves the problems mentioned in the background art.

[0005] The utility model solves the technical problems by adopting the following technical scheme: a filter net convenient to replace for filter, comprising an equipment shell, a feeding pipe is fixedly connected to the center of the upper surface of the equipment shell, a discharging pipe is fixedly connected to the lower surface of the equipment shell, two limiting assemblies are arranged in the equipment shell, a fixed groove is formed in the left outer wall of the equipment shell, a back-shaped groove is formed in the left side of the equipment shell close to the fixed groove, a connecting groove is formed in the left side of the inner wall of the equipment shell, and a replacement structure is arranged in the equipment shell.

[0006] The limiting assembly is used for limiting the replacement structure, and the replacement structure is used for replacing the filter net in the equipment shell.

[0007] Further, the limiting assembly comprises a U-shaped limiting plate, an arc-shaped groove one, a ball and an L-shaped baffle, one side outer wall of the U-shaped limiting plate is fixedly installed on the inner wall of the equipment shell, two symmetrical arc-shaped grooves one are formed in the inner wall of the U-shaped limiting plate, the ball is movably connected in the arc-shaped groove one, and the L-shaped baffle is fixedly connected to one side of the upper surface of the U-shaped limiting plate.

[0008] By adopting the above technical scheme, the material to be filtered is poured into the equipment shell through the feeding pipe, and when the material enters the equipment shell, the material directly slides onto the filter screen body through the L-shaped baffle, so that the material is conveniently filtered.

[0009] Further, the replacement structure comprises a movable plate, a pull ring, a limiting hole, a filter screen body, a connecting plate, an arc-shaped groove two, a limiting block, a back-shaped sealing ring and a rectangular plate, the outer wall of the movable plate is movably connected in the fixed groove, the left outer wall of the movable plate is fixedly connected with the pull ring, the limiting hole is formed in the center of the upper surface of the movable plate, the right outer wall of the movable plate is fixedly connected with the filter screen body, the connecting plate is fixedly connected to the outer walls on both sides of the filter screen body, the symmetrical arc-shaped groove two is formed in the upper and lower outer walls of the connecting plate, the limiting block is fixedly connected to the right end of the filter screen body, the right outer wall of the movable plate is fixedly connected with the back-shaped sealing ring, and two symmetrical rectangular plates are fixedly connected to the inside of the right outer wall of the movable plate close to the back-shaped sealing ring.

[0010] Further, the installation groove is formed in the left end of the upper surface of the equipment shell, the limiting groove one is formed in the bottom of the installation groove in the interior of the equipment shell, the limiting groove one is in communication with the interior of the fixed groove, the limiting groove two is formed in the right side of the inner wall of the equipment shell, the hydraulic cylinder is fixedly installed in the interior of the installation groove, the hydraulic rod is movably connected in the interior of the hydraulic cylinder, and the bottom end of the hydraulic rod is movably connected in the interiors of the limiting groove one and the limiting hole.

[0011] Further, the interior of the fixed groove is in communication with the interior of the back-shaped groove, the interior of the fixed groove is in communication with the interior of the equipment shell through the connecting groove, and the limiting block is movably connected in the limiting groove two.

[0012] By adopting the above technical scheme, when the filter screen body is placed in the interior of the equipment shell, the limiting block fixedly connected to one end of the filter screen body is clamped in the interior of the limiting groove two, so that one end of the filter screen body is conveniently supported.

[0013] Further, the size of the back-shaped sealing ring is matched with the inside of the back-shaped groove, the outer wall of the rectangular plate is matched with the inner wall of the connecting groove, the outer wall of the filter screen body is movably connected in the inside of the equipment shell through the fixing groove and the connecting groove, the outer wall of the connecting plate is movably connected in the inside of the U-shaped limiting plate, and the inside of the arc-shaped groove two movably connects the ball.

[0014] When the filter screen body is installed in the inside of the equipment shell, the connecting plate connected at both sides of the filter screen body is moved from the inside of the left end of the U-shaped limiting plate to the right end, and the inside of the U-shaped limiting plate movably connects the ball, so that the ball plays a sliding role when the connecting plate is moved to the inside of the U-shaped limiting plate.

[0015] The utility model discloses the beneficial effect is:

[0016] 1. The filter screen convenient to replace for filter machine, through the setting of replacement structure, start hydraulic cylinder, and hydraulic cylinder drives hydraulic stem to move upwards, make the bottom end of hydraulic stem separate from the inside of limiting groove no. 1 and limiting hole, then pull the pull ring outward, make the pull ring drive movable plate, connecting plate and filter screen body separate from the inside of U-shaped limiting plate and equipment shell, so that the filter screen body is replaced conveniently, and the problem that the original filter screen in the filter machine is inconvenient to replace is solved.

[0017] 2. The filter screen convenient to replace for filter machine, through the setting of fixing groove, back-shaped groove and connecting groove, when the filter screen body is installed in the inside of the equipment shell, one end of the filter screen body is made into the inside of the equipment shell through the fixing groove and the connecting groove, then the connecting plate at both sides of the filter screen body is made into the inside of the U-shaped limiting plate, the U-shaped limiting plate plays a limiting role to the filter screen body, then the outer wall of the back-shaped sealing ring is sealed in the inside of the back-shaped groove, the back-shaped sealing ring seals between the filter screen body and the equipment shell, prevents the liquid in the inside of the equipment shell from penetrating out from the inside of the connecting groove and the fixing groove when the filter machine is filtering, then the outer wall of the movable plate is clamped in the inside of the fixing groove, starts the hydraulic cylinder, and the hydraulic cylinder drives the hydraulic stem to move to the limiting groove no. 1 and the limiting hole, makes the hydraulic stem penetrate the inside of the limiting hole, then is fixed in the inner wall bottom end of the limiting groove no. 1. ACCURACY OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing used in the embodiment description or prior art.

[0019] Figure 1 It is the structure schematic view of the utility model;

[0020] Figure 2 It is the structure partial section view of the utility model;

[0021] Figure 3 For the utility model Figure 2 The structure of A place in the middle is enlarged and shows a schematic diagram.

[0022] Figure 4 For the utility model structure section view;

[0023] Figure 5 For the utility model replacement structure section view;

[0024] Figure 6 For the utility model replacement structure schematic diagram;

[0025] Figure 7 For the utility model Figure 5 The structure of B place in the middle is enlarged and shows a schematic diagram.

[0026] Figure 8 For the utility model Figure 6 The structure of C place in the middle is enlarged and shows a schematic diagram.

[0027] Figure 9 For the utility model filter screen body structure section view.

[0028] The drawing mark is explained: 1, equipment shell, 2, feed pipe, 4, discharge pipe, 5, limiting component, 51, U-shaped limiting plate, 52, arc-shaped groove one, 53, ball, 54, L-shaped baffle, 6, installation groove, 7, limiting groove one, 8, fixed groove, 9, back type groove, 10, connecting groove, 11, replacement structure, 111, movable plate, 112, pull ring, 113, limiting hole, 114, filter screen body, 115, connecting plate, 116, arc-shaped groove two, 117, limiting block, 118, back type sealing ring, 119, rectangular plate, 12, limiting groove two, 13, hydraulic cylinder, 14, hydraulic rod. Specific implementation

[0029] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0030] Please refer to Figures 1-9 A filter screen convenient to replace for filter is provided, which comprises an equipment shell 1, a feed pipe 2 is fixedly communicated at the center of the upper surface of the equipment shell 1, a discharge pipe 4 is fixedly communicated at the lower surface of the equipment shell 1, two limiting components 5 are arranged in the equipment shell 1, a fixed groove 8 is formed in the left outer wall of the equipment shell 1, a back type groove 9 is formed in the left side of the equipment shell 1 close to the fixed groove 8, a connecting groove 10 is formed in the inner wall left side of the equipment shell 1, and a replacement structure 11 is arranged in the equipment shell 1.

[0031] The limiting component 5 is used for limiting the replacement structure 11, and the replacement structure 11 is used for replacing the filter screen in the equipment shell 1.

[0032] Referring to Figure 3 , 4 As shown in the drawings, the limiting assembly 5 comprises a U-shaped limiting plate 51, an arc-shaped groove one 52, a ball 53 and an L-shaped baffle 54. One side outer wall of the U-shaped limiting plate 51 is fixedly installed on the inner wall of the equipment shell 1. Two symmetrical arc-shaped grooves one 52 are formed in the inner wall of the U-shaped limiting plate 51. The ball 53 is movably connected in the arc-shaped groove one 52. The L-shaped baffle 54 is fixedly connected to one side of the upper surface of the U-shaped limiting plate 51. Through the above technical scheme, the material to be filtered is poured into the inside of the equipment shell 1 through the feeding pipe 2. When the material enters the inside of the equipment shell 1, the material will directly slide onto the filter screen body 114 through the L-shaped baffle 54. This facilitates the filtering of the material.

[0033] Referring to Figures 2-9 As shown in the drawings, the replacement structure 11 comprises a movable plate 111, a pull ring 112, a limiting hole 113, a filter screen body 114, a connecting plate 115, an arc-shaped groove two 116, a limiting block 117, a back-shaped sealing ring 118 and a rectangular plate 119. The outer wall of the movable plate 111 is movably connected in the inside of the fixed groove 8. The pull ring 112 is fixedly connected to the left side outer wall of the movable plate 111. The limiting hole 113 is formed in the center of the upper surface of the movable plate 111. The filter screen body 114 is fixedly connected to the right side outer wall of the movable plate 111. The connecting plate 115 is fixedly connected to the outer walls of the two sides of the filter screen body 114. The symmetrical arc-shaped groove two 116 is formed in the upper and lower outer walls of the connecting plate 115. The limiting block 117 is fixedly connected to the right end of the filter screen body 114. The back-shaped sealing ring 118 is fixedly connected to the right side outer wall of the movable plate 111. Two symmetrical rectangular plates 119 are fixedly connected to the inside of the right side outer wall of the movable plate 111 close to the back-shaped sealing ring 118. Through the arrangement of the replacement structure 11, the hydraulic cylinder 13 is started. The hydraulic cylinder 13 drives the hydraulic rod 14 to move upwards. The bottom end of the hydraulic rod 14 is separated from the inside of the limiting groove one 7 and the limiting hole 113. Then the pull ring 112 is pulled outwards. The pull ring 112 drives the movable plate 111, the connecting plate 115 and the filter screen body 114 to be separated from the inside of the U-shaped limiting plate 51 and the equipment shell 1. This facilitates the replacement of the filter screen body 114 and solves the problem of inconvenient replacement of the filter screen in the filter.

[0034] Referring to Figure 2 , 4As shown in FIGS. 6, 7, 8, the upper surface of the equipment shell 1 is provided with a mounting groove 6 at the left end, the bottom of the mounting groove 6 is provided with a limiting groove one 7 inside the equipment shell 1, the limiting groove one 7 is communicated with the inside of the fixed groove 8, the right side of the inner wall of the equipment shell 1 is provided with a limiting groove two 12, the inside of the mounting groove 6 is fixedly provided with a hydraulic cylinder 13, the inside of the hydraulic cylinder 13 is movably connected with a hydraulic rod 14, the bottom end of the hydraulic rod 14 is movably connected inside the limiting groove one 7 and the limiting hole 113; through the arrangement of the fixed groove 8, the back-shaped groove 9 and the connecting groove 10, when the filter screen body 114 is installed inside the equipment shell 1, one end of the filter screen body 114 enters the inside of the equipment shell 1 through the fixed groove 8 and the connecting groove 10, then the connecting plates 115 on both sides of the filter screen body 114 enter the inside of the U-shaped limiting plate 51, the U-shaped limiting plate 51 plays a limiting role on the filter screen body 114, then the outer wall of the back-shaped sealing ring 118 is sealed inside the back-shaped groove 9, the back-shaped sealing ring 118 seals between the filter screen body 114 and the equipment shell 1, preventing the liquid inside the equipment shell 1 from penetrating out from the inside of the connecting groove 10 and the fixed groove 8 when the filter machine is filtering, then the outer wall of the movable plate 111 is clamped inside the fixed groove 8, the hydraulic cylinder 13 is started, the hydraulic cylinder 13 drives the hydraulic rod 14 to move towards the limiting groove one 7 and the limiting hole 14, so that the hydraulic rod 14 penetrates the inside of the limiting hole 113, and then is fixed at the bottom end of the inner wall of the limiting groove one 7.

[0035] In the present application, the hydraulic cylinder 13 adopts a single-piston hydraulic cylinder, that is, the inlet and outlet ends of the hydraulic cylinder are respectively connected with one side access end of an external liquid reversing valve through a pressure oil pipe, the other side access end of the external liquid reversing valve is connected with the inlet and outlet ends of a hydraulic pump through a pressure oil pipe, so that the output end of the hydraulic cylinder can move up and down, therefore, a shunt and collecting valve is additionally arranged between the pipeline between the external liquid reversing valve and the hydraulic cylinder, so as to evenly distribute the oil inlet and outlet of the hydraulic cylinder 13, when the inlet and outlet ends of the hydraulic cylinder 13 are respectively connected with the branch inlet and outlet ends of an external shunt and collecting valve through a pressure oil pipe, and the main inlet and outlet ends of the external shunt and collecting valve are connected with one side access end of an external liquid reversing valve through a pressure oil pipe, it should be noted that the external liquid reversing valve is externally connected and independently designed, which is a prior art scheme, therefore, will not be described here.

[0036] Referring to FIGS. 6, 7, 8, Figure 7 8 As shown in FIGS. 6, 7, 8, the inside of the fixed groove 8 is communicated with the inside of the back-shaped groove 9, the inside of the fixed groove 8 is communicated with the inside of the equipment shell 1 through the connecting groove 10, and the inside of the limiting groove two 12 is movably connected with the limiting block 117; through the above technical scheme, when the filter screen body 114 is placed inside the equipment shell 1, the limiting block 117 fixedly connected with one end of the filter screen body 114 is clamped inside the limiting groove two 12, so that one end of the filter screen body 114 is conveniently supported.​

[0037] Referring to Figures 4-9 As shown, the size of the annular sealing ring 118 is adapted to the interior of the annular groove 9, the outer wall of the rectangular plate 119 is in close contact with the inner wall of the connecting groove 10, the outer wall of the filter screen body 114 is movably connected in the interior of the equipment shell 1 through the fixing groove 8 and the connecting groove 10, the outer wall of the connecting plate 115 is movably connected in the interior of the U-shaped limiting plate 51, and the interior of the arc-shaped groove two 116 movably connects the ball 53; when the filter screen body 114 is installed in the interior of the equipment shell 1 by using the above technical scheme, the connecting plate 115 connected on both sides of the filter screen body 114 moves from the left end interior of the U-shaped limiting plate 51 to the right end, and the interior of the U-shaped limiting plate 51 movably connects the ball 53, which plays a sliding role when the connecting plate 115 moves to the interior of the U-shaped limiting plate 51.

[0038] When the filter screen body 114 needs to be replaced in use, the hydraulic cylinder 13 is started, the hydraulic cylinder 13 drives the hydraulic rod 14 to move upwards, the bottom end of the hydraulic rod 14 is separated from the interior of the limiting groove one 7 and the limiting hole 113, then the pull ring 112 is pulled outwards, the pull ring 112 drives the movable plate 111, the connecting plate 115 and the filter screen body 114 to be separated from the interior of the U-shaped limiting plate 51 and the equipment shell 1, so that the filter screen body 114 is conveniently replaced, and the problem that the original filter screen in the filter is inconvenient to replace is solved; when the filter screen body 114 is installed in the interior of the equipment shell 1, one end of the filter screen body 114 enters the interior of the equipment shell 1 through the fixing groove 8 and the connecting groove 10, then the connecting plate 115 on both sides of the filter screen body 114 enters the interior of the U-shaped limiting plate 51, the U-shaped limiting plate 51 plays a limiting role on the filter screen body 114, then the outer wall of the annular sealing ring 118 is sealed in the interior of the annular groove 9, the annular sealing ring 118 seals between the filter screen body 114 and the equipment shell 1, so that the liquid in the interior of the equipment shell 1 cannot penetrate out from the interior of the connecting groove 10 and the fixing groove 8 when the filter is filtering, then the outer wall of the movable plate 111 is clamped in the interior of the fixing groove 8, the hydraulic cylinder 13 is started, the hydraulic cylinder 13 drives the hydraulic rod 14 to move to the limiting groove one 7 and the limiting hole 14, the hydraulic rod 14 penetrates the interior of the limiting hole 113, and then is fixed to the inner wall bottom end of the limiting groove one 7.

[0039] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application 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

1. A filter for a filter press that is easy to replace, comprising a housing (1), characterized in that: The upper surface of the equipment housing (1) is fixedly connected to the center of the feed pipe (2), the lower surface of the equipment housing (1) is fixedly connected to the discharge pipe (4), the inside of the equipment housing (1) is provided with two limiting components (5), the left outer wall of the equipment housing (1) is provided with a fixing groove (8), the left side of the equipment housing (1) is provided with a back groove (9) near the fixing groove (8), the left side of the equipment housing (1) is provided with a connecting groove (10), and the inside of the equipment housing (1) is provided with a replacement structure (11). The limiting component (5) is used to limit the replacement structure (11), which is used to replace the filter screen inside the equipment housing (1).

2. The filter screen for a filter press that is easy to replace according to claim 1, characterized in that: The limiting component (5) includes a U-shaped limiting plate (51), an arc groove (52), a ball (53), and an L-shaped baffle (54). One outer wall of the U-shaped limiting plate (51) is fixedly installed on the inner wall of the equipment housing (1). Two symmetrical arc grooves (52) are opened on the inner wall of the U-shaped limiting plate (51). The ball (53) is movably connected inside the arc groove (52). The L-shaped baffle (54) is fixedly connected to one side of the upper surface of the U-shaped limiting plate (51).

3. The filter screen for a filter press that is easy to replace according to claim 2, characterized in that: The replacement structure (11) includes a movable plate (111), a pull ring (112), a limiting hole (113), a filter screen body (114), a connecting plate (115), an arc-shaped groove (116), a limiting block (117), a U-shaped sealing ring (118), and a rectangular plate (119). The outer wall of the movable plate (111) is movably connected to the inside of the fixed groove (8). The pull ring (112) is fixedly connected to the left outer wall of the movable plate (111). A limiting hole (113) is opened at the center of the upper surface of the movable plate (111). A filter screen body (114) is fixedly connected to the right outer wall of the filter screen body (114). A connecting plate (115) is fixedly connected to the two outer walls of the filter screen body (114). A symmetrical arc-shaped groove (116) is opened on the upper and lower outer walls of the connecting plate (115). A limiting block (117) is fixedly connected to the right end of the filter screen body (114). A U-shaped sealing ring (118) is fixedly connected to the right outer wall of the movable plate (111). Two symmetrical rectangular plates (119) are fixedly connected to the inside of the right outer wall of the movable plate (111) near the U-shaped sealing ring (118).

4. The filter screen for a filter press that is easy to replace according to claim 3, characterized in that: The upper surface of the equipment housing (1) has an installation groove (6) at the left end. The inside of the equipment housing (1) is provided with a limiting groove (7) at the bottom of the installation groove (6). The inside of the limiting groove (7) is connected to the inside of the fixing groove (8). The right side of the inner wall of the equipment housing (1) has a limiting groove (12). A hydraulic cylinder (13) is fixedly installed inside the installation groove (6). A hydraulic rod (14) is movably connected inside the hydraulic cylinder (13). The bottom end of the hydraulic rod (14) is movably connected inside the limiting groove (7) and the limiting hole (113).

5. A replaceable filter screen for a filter press according to claim 4, characterized in that: The interior of the fixed groove (8) is connected to the interior of the loop groove (9). The interior of the fixed groove (8) is connected to the interior of the equipment housing (1) through the connecting groove (10). The interior of the limiting groove (12) is movably connected to the limiting block (117).

6. A replaceable filter screen for a filter press according to claim 5, characterized in that: The size of the spiral sealing ring (118) is adapted to the interior of the spiral groove (9). The outer wall of the rectangular plate (119) is in contact with the inner wall of the connecting groove (10). The outer wall of the filter screen body (114) is movably connected to the interior of the equipment shell (1) through the fixing groove (8) and the connecting groove (10). The outer wall of the connecting plate (115) is movably connected to the interior of the U-shaped limiting plate (51). The interior of the arc groove (116) is movably connected with a ball (53).

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