Backwash screen exchanger

Abstract

The utility model belongs to the technical field of screen exchangers, and discloses a backwashing screen exchanger which comprises a screen exchanger body, a telescopic screen exchanger main shaft body is installed in the screen exchanger body, a residue storage cavity is formed in one side of the screen exchanger main shaft body, a movable screen block capable of being popped up is installed in the residue storage cavity, and the movable screen block is connected with the screen exchanger main shaft body. A filtering net piece is mounted on the movable net block; the stabilizing assembly comprises a sliding groove formed in the movable net block and an abutting block rotationally installed in the sliding groove; through the arrangement of the stabilizing assembly, the filtering net piece can be stably attached to the movable net block, the filtering net piece can be prevented from being separated, and therefore the problems that an existing filtering net piece is prone to being separated from the movable net block due to shaking in the moving process, a user needs to place the filtering net piece repeatedly, and use is inconvenient are solved. And therefore, the working efficiency of the screen exchanger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen changers, in particular to a backwashing screen changer. Background Art

[0002] The screen changer is a manual or automatic switching device including one or more filter screens, which is used to filter out foreign particles and impurities when the plasticized material flows through the filter screen. The filter screen is supported by an alloy porous plate, which is mounted on a plate or column carrier. The carrier can be moved to switch between a system working position and an offline non-working position.

[0003] In a Chinese patent with authorization announcement number CN220090692U, a double-station backwash filter screen changer is disclosed, which pushes the filter mesh and the slag in the slag storage chamber forward to expose the interior of the slag storage chamber, discharges the slag in the slag storage chamber, and then replaces the new filter mesh, places the new filter mesh at the front end of the mesh block, and the slag storage chamber can be automatically opened when the clean mesh is replaced, without the need for manual removal of the filtered slag; however, in actual use of the above-mentioned double-station backwash filter screen changer, the replaced filter mesh is generally placed at the front end of the mesh block, but the mesh block is difficult to stably fit the filter mesh, so that the filter mesh is easily separated from the mesh block due to shaking when moving, and the user needs to place it repeatedly, resulting in time-consuming and labor-intensive installation of the filter mesh, which reduces the working efficiency of the screen changer. Utility Model Content

[0004] The utility model proposes a backwash screen changer to solve the problem that it is difficult for the existing screen block to stably fit the filter screen, so that the filter screen is easily separated from the screen block due to shaking when moving, and the user needs to repeatedly place the filter screen, which makes the installation of the filter screen time-consuming and labor-intensive.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a backwashing screen changer, comprising:

[0006] A screen changer body, wherein a retractable screen changer main shaft body is installed in the screen changer body, a slag storage cavity is opened on one side of the screen changer main shaft body, a pop-up movable net block is installed in the slag storage cavity, and a filter mesh is installed on the movable net block;

[0007] A stabilizing component is used to fasten the filter mesh to the mobile mesh block. The stabilizing component includes a sliding groove provided in the mobile mesh block and a resistance block rotatably installed in the sliding groove. The outer portion of the resistance block rotates out of the sliding groove and resists against the top of the filter mesh. A connecting column is installed on one side of the mobile mesh block, and one end of the connecting column extends into the sliding groove and is fixed to one end of the resistance block. An elastic component for limiting the connecting column is provided in the mobile mesh block, a positioning component for guiding the connecting column is provided on the connecting column, and a protective component for protecting the connecting column is provided on the connecting column.

[0008] Preferably, the elastic component includes a through groove opened in the movable net block and a movable ring sleeved on the outside of the connecting column, and the movable ring is located in the through groove, and a slidable connecting ring is sleeved on the outside of the movable ring. A spring is installed between the connecting ring and the through groove, and one end of the spring is in contact with one end of the movable ring.

[0009] Preferably, a limiting ring is fixed to one end of the movable ring, and a rotating groove for inserting the limiting ring is formed at one end of the connecting ring.

[0010] Preferably, the positioning assembly includes a positioning groove opened on the outside of the connecting column and a positioning block fixed in the movable net block, and the positioning block is slidably connected to the positioning groove. A positioning cavity communicating with the inside of the positioning groove is opened on the outside of the connecting column, and the positioning cavity and the positioning block are clamped and fixed.

[0011] Preferably, the protection component includes a guide ring groove provided on the outside of the connecting column and a cylinder sleeved on the outside of the connecting column, a sliding block is fixed in the cylinder, and the sliding block is rotatably connected to the guide ring groove.

[0012] Preferably, the outside of the connecting column is further provided with a plug-in groove which communicates with the inside of the guide ring groove, the plug-in groove is slidably connected to the sliding block, and the size of the plug-in groove is adapted to the sliding block.

[0013] Preferably, a protrusion is fixed to the outside of the abutment block, and the bottom of the protrusion abuts against the top of the filter mesh.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] (1) By setting up the stabilizing component, the filter mesh can be stably attached to the mobile mesh block, which can prevent the filter mesh from detaching, thereby solving the problem that the existing filter mesh is easily separated from the mobile mesh block due to shaking during movement, requiring the user to repeatedly place the filter mesh, resulting in time-consuming and labor-intensive installation, thereby improving the working efficiency of the screen changer.

[0016] (2) By setting up the protective component, the connecting column can be protected in a short range, thereby preventing the connecting column from being accidentally touched and accidentally rotating, ensuring that the connecting column remains stable during use, and maintaining good coordination between the filter mesh and the mobile mesh block, further improving the working efficiency of the screen changer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the main shaft of the middle screen changer;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the structure when the middle filter mesh and the mobile mesh block are attached;

[0021] Figure 4 For this utility model Figure 3 A in the enlarged view;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the structure when the middle contact block and the sliding groove are adjusted;

[0023] Figure 6 For this utility model Figure 5 The enlarged view of point B in the figure;

[0024] In the figure: 1. Screen changer body; 11. Screen changer main shaft body; 12. Slag storage chamber; 13. Moving mesh block; 14. Filter mesh; 2. Stabilizing component; 21. Sliding groove; 22. Connecting column; 23. Resistance block; 24. Through groove; 25. Spring; 26. Connecting ring; 27. Limiting ring; 28. Moving ring; 3. Positioning component; 31. Positioning groove; 32. Positioning block; 33. Positioning chamber; 4. Protective component; 41. Cylinder; 42. Guide ring groove; 43. Plug-in groove; 44. Sliding block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-5 A backwash screen changer is shown, comprising:

[0027] A screen changer body 1, a retractable screen changer main shaft body 11 is installed in the screen changer main shaft body 1, a slag storage chamber 12 is opened on one side of the screen changer main shaft body 11, a pop-up mobile net block 13 is installed in the slag storage chamber 12, and a filter mesh 14 is installed on the mobile net block 13; wherein, the structures and principles of the screen changer main shaft body 11 and the mobile net block 13 are all prior art, and specific reference is made to the comparative document (a Chinese patent with authorization announcement number CN220090692U discloses a double-station backwash filter screen changer), which will not be repeated here;

[0028] The stabilizing component 2 is used to fasten and fit the filter mesh 14 in the mobile mesh block 13. The stabilizing component 2 includes a sliding groove 21 provided in the mobile mesh block 13 and a resisting block 23 rotatably installed in the sliding groove 21. The outer portion of the resisting block 23 rotates out of the sliding groove 21 and resists the top of the filter mesh 14. A connecting column 22 is installed on one side of the mobile mesh block 13. One end of the connecting column 22 extends into the sliding groove 21 and is fixed to one end of the resisting block 23. An elastic component for limiting the connecting column 22 is provided in the mobile mesh block 13. A positioning component 3 for guiding the connecting column 22 is provided on the connecting column 22. A protective component 4 for protecting the connecting column 22 is provided on the connecting column 22.

[0029] The elastic component includes a through slot 24 opened in the movable net block 13 and a movable ring 28 sleeved on the outside of the connecting column 22, and the movable ring 28 is located in the through slot 24, and a slidable connecting ring 26 is sleeved on the outside of the movable ring 28. A spring 25 is installed between the connecting ring 26 and the through slot 24, and one end of the spring 25 is in contact with one end of the movable ring 28.

[0030] Through the above technical solution:

[0031] When it is necessary to clean the slag in the slag storage chamber 12, first slide the main shaft body 11 of the screen changer along the screen changer main body 1, and expose the slag storage chamber 12 to the outside of the screen changer main body 1 through the sliding of the main shaft body 11 of the screen changer, and then move the mesh block 13 along the slag storage chamber 12. At this time, the mobile mesh block 13 is used to push the slag in the slag storage chamber 12 and the filter mesh 14 to slide outward, so as to automatically clean the slag in the slag storage chamber 12. When replacing the cleaning mesh, the slag storage chamber 12 can be automatically opened, and there is no need to manually remove the filtered slag, thereby improving production efficiency.

[0032] When the filter mesh 14 is replaced and replaced, the filter mesh 14 is first placed in the movable mesh block 13 and fits each other, and the rotating connecting column 22 drives the resistance block 23 to rotate along the sliding groove 21, and then the outer part of the resistance block 23 is separated from the sliding groove 21 due to the rotation and is located in the movable mesh block 13. At this time, the part of the resistance block 23 located in the movable mesh block 13 conflicts with the top of the filter mesh 14, and the filter mesh 14 is stably fitted with the movable mesh block 13, so that the filter mesh 14 can be stably fitted on the movable mesh block 13, and the filter mesh 14 can be prevented from being separated, thereby solving the problem that the existing filter mesh 14 is easily separated and fallen off from the movable mesh block 13 due to shaking during movement, and the user needs to repeatedly place it, which makes the installation of the filter mesh 14 time-consuming and labor-intensive, and greatly improves The working efficiency of the screen changer is improved; in the process of the conflict block 23 and the filter mesh 14 conflicting, by pulling the connecting column 22 to slide along the sliding groove 21 and the through groove 24, the connecting column 22 moves and drives the conflict block 23 to slide along the sliding groove 21 and the moving ring 28 to slide along the through groove 24 respectively. At this time, the distance between the conflict block 23 located at the moving mesh block 13 and the moving mesh block 13 is adjusted, which can adapt to the installation of filter meshes 14 of more different thicknesses, enhance the flexibility of the device, and the spring 25 locks and resets the thrust, giving one side thrust of the connecting ring 26, so that the connecting ring 26 pushes the moving ring 28 to slide along the through groove 24, that is, the connecting column 22 slides along the through groove 24, and the sliding of the connecting column 22 pushes the conflict block 23 and the filter mesh 14 to conflict, enhance the stability between the conflict block 23 and the filter mesh 14.

[0033] Furthermore, a limiting ring 27 is fixed to one end of the movable ring 28, and a rotating groove for inserting the limiting ring 27 is opened at one end of the connecting ring 26; based on this, through the setting of the limiting ring 27, the connecting ring 26 and the movable ring 28 can be well matched, so that the connecting ring 26 and the movable ring 28 are stably connected, ensuring that the movable ring 28 can stably move or rotate along the through groove 24.

[0034] Furthermore, a protrusion is fixed to the outside of the resistance block 23, and the bottom of the protrusion is in contact with the top of the filter mesh 14; based on this, through the setting of the protrusion, and the internal size of the sliding groove 21 is adapted to the protrusion and the resistance block 23, mutual interference is avoided, and the protrusion contacts the top of the filter mesh 14, thereby enhancing the contact range between the outside of the resistance block 23 and the filter mesh 14, so that the filter mesh 14 and the movable mesh block 13 are stably fitted.

[0035] Furthermore, the positioning assembly 3 includes a positioning groove 31 opened on the outside of the connecting column 22 and a positioning block 32 fixed in the movable net block 13, and the positioning block 32 is slidingly connected to the positioning groove 31. A positioning cavity 33 communicating with the inside of the positioning groove 31 is opened on the outside of the connecting column 22, and the positioning cavity 33 and the positioning block 32 are clamped and fixed. Based on this, when the connecting column 22 is pulled, it slides between the positioning groove 31 and the positioning block 32, causing one end of the positioning block 32 to conflict with the positioning groove 31, and the connecting column 22 cannot be pulled, so that there is a distance between the interference block 23 and the filter mesh 14. At this time, the positioning block 32 and the positioning cavity 33 remain corresponding, and the connecting column 22 is rotated to slide the positioning block 32 along the positioning cavity 33, so that the interference block 23 rotates along the moving mesh block 13 and the sliding groove 21, and the interference between the interference block 23 and the filter mesh 14 is lost. At the same time, the positioning block 32 slides into the positioning cavity 33 to clamp them together, which can ensure that the adjusted position of the interference block 23 will not change, thereby avoiding mutual interference between the filter mesh 14 and the interference block 23.

[0036] In addition, refer to Figure 1-Figure 6 As shown, the protective component 4 includes a guide ring groove 42 opened on the outside of the connecting column 22 and a cylinder 41 sleeved on the outside of the connecting column 22, a sliding block 44 is fixed in the cylinder 41, and the sliding block 44 is rotatably connected to the guide ring groove 42; the outside of the connecting column 22 is also provided with a plug-in groove 43 that communicates with the inside of the guide ring groove 42, the plug-in groove 43 is slidably connected to the sliding block 44, and the size of the plug-in groove 43 is adapted to the sliding block 44.

[0037] Through the above technical solution:

[0038] When the filter mesh 14 and the movable mesh block 13 are fitted together, the rotating cylinder 41 slides along the outside of the connecting column 22, and then the sliding block 44 slides along the guide ring groove 42. At this time, the position of the connecting column 22 remains stationary, and the connecting column 22 will not be rotated, which can provide a short-range protection for the connecting column 22, prevent the connecting column 22 from being accidentally touched and accidentally rotated, and ensure that the connecting column 22 remains stable during use, so that the filter mesh 14 and the movable mesh block 13 maintain good cooperation, further improving the working efficiency of the screen changer;

[0039] When the connecting column 22 needs to be rotated, the sliding block 44 is driven to slide along the guide ring groove 42 by the rotating cylinder 41, and the cylinder 41 is pulled during the rotation process, so that the sliding block 44 is in contact with and fits against the inside of the guide ring groove 42. At this time, the sliding block 44 rotates slowly along the guide ring groove 42 and approaches the plug-in groove 43, and the sliding block 44 corresponds to the plug-in groove 43, and the cylinder 41 is rotated to pull the sliding block 44 to slide along the plug-in groove 43, thereby realizing that the rotation of the cylinder 41 drives the connecting column 22 to rotate.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A backwash screen changer, characterized in that: include: A screen changer body (1), wherein a retractable screen changer main shaft body (11) is installed in the screen changer body (1), a slag storage chamber (12) is provided on one side of the screen changer main shaft body (11), a pop-up movable mesh block (13) is installed in the slag storage chamber (12), and a filter mesh sheet (14) is installed on the movable mesh block (13); A stabilizing component (2) is used to fasten and fit a filter mesh (14) in a movable mesh block (13). The stabilizing component (2) comprises a sliding groove (21) provided in the movable mesh block (13) and a resisting block (23) rotatably installed in the sliding groove (21). The outer portion of the resisting block (23) rotates out of the sliding groove (21) and resists against the top of the filter mesh (14). A connecting column (22) is installed on one side of the movable mesh block (13), and one end of the connecting column (22) extends into the sliding groove (21) and is fixed to one end of the resisting block (23). An elastic component for limiting the connecting column (22) is provided in the movable mesh block (13). A positioning component (3) for guiding the connecting column (22) is provided on the connecting column (22). A protective component (4) for protecting the connecting column (22) is provided on the connecting column (22).

2. A backwash screen changer according to claim 1, characterized in that: The elastic component comprises a through slot (24) provided in the movable net block (13) and a movable ring (28) sleeved on the outside of the connecting column (22), wherein the movable ring (28) is located in the through slot (24), a slidable connecting ring (26) is sleeved on the outside of the movable ring (28), a spring (25) is installed between the connecting ring (26) and the through slot (24), and one end of the spring (25) contacts one end of the movable ring (28).

3. A backwash screen changer according to claim 2, characterized in that: A limiting ring (27) is also fixed to one end of the movable ring (28), and a rotation groove for the limiting ring (27) to be inserted is formed at one end of the connecting ring (26).

4. A backwash screen changer according to claim 1, characterized in that: The positioning assembly (3) comprises a positioning groove (31) provided on the outside of the connecting column (22) and a positioning block (32) fixed in the movable net block (13), and the positioning block (32) is slidably connected to the positioning groove (31), and a positioning cavity (33) communicating with the inside of the positioning groove (31) is provided on the outside of the connecting column (22), and the positioning cavity (33) and the positioning block (32) are fixed by clamping.

5. A backwash screen changer according to claim 1, characterized in that: The protection component (4) comprises a guide ring groove (42) provided on the outside of the connecting column (22) and a cylinder (41) sleeved on the outside of the connecting column (22); a sliding block (44) is fixed inside the cylinder (41), and the sliding block (44) is rotatably connected to the guide ring groove (42).

6. A backwash screen changer according to claim 5, characterized in that: The outside of the connecting column (22) is also provided with a plug-in groove (43) which communicates with the inside of the guide ring groove (42); the plug-in groove (43) is slidably connected to the sliding block (44), and the size of the plug-in groove (43) is adapted to the sliding block (44).

7. A backwash screen changer according to claim 1, characterized in that: A protrusion is also fixed to the outside of the abutment block (23), and the bottom of the protrusion abuts against the top of the filter mesh (14).

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