Fixing mechanism for filter screen piece of sludge dewatering machine

Abstract

The utility model discloses a filter screen piece fixing mechanism of a sludge dewatering machine, which relates to the technical field of sludge dewatering machines, comprises a sludge dewatering machine main body, filter screen pieces and a limiting rod, and is characterized in that a filter screen mounting groove is formed in the sludge dewatering machine main body close to the bottom wall, and two groups of filter screen pieces are connected to the inner side wall of the filter screen mounting groove in a sliding manner; positioning blocks are fixedly connected to the two ends of one sides of the two sets of filter screen pieces, fixing blocks are fixedly connected to the positions, close to the upper sides and the lower sides of the positioning blocks, of the two ends of the sludge dewatering machine body, and positioning rods are slidably connected to the inner sides of the four sets of fixing blocks close to the upper end in a penetrating and limiting mode. A worker needs to install filter screen pieces in filter screen installation grooves of a sludge dewatering machine body (a stacked spiral sludge dewatering machine), the two sets of filter screen pieces are installed in the filter screen installation grooves in the two sides of the sludge dewatering machine body respectively, and the worker aligns the filter screen pieces to the filter screen installation grooves for installation.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering machine technology, specifically a filter screen fixing mechanism for a sludge dewatering machine. Background Technology

[0002] The main function of a sludge dewatering machine (screw press sludge dewatering machine) is to remove water from the sludge generated during wastewater treatment through mechanical, physical, or chemical means, thereby reducing the volume of the sludge and facilitating subsequent treatment and disposal. It plays an important role in wastewater treatment plants and other wastewater treatment systems.

[0003] In existing sludge dewatering machines, the filter screen is fixed to the bottom wall of the machine with screws, so that the water in the sludge is filtered through the filter screen, thus separating the sludge and water.

[0004] The above-mentioned utility model has the following problems:

[0005] In existing technology, the filter screen is fixed with screws. When it is necessary to disassemble or install the filter screen, the filter screen is on the bottom wall of the sludge dewatering machine, and the staff needs to squat or lie on the ground to work. In addition, the operating space at the bottom of the sludge dewatering machine is limited, which makes it inconvenient for the staff to replace the filter screen.

[0006] Therefore, those skilled in the art have provided a sludge dewatering machine filter screen fixing mechanism to solve the problems mentioned in the background art. Utility Model Content

[0007] The purpose of this utility model is to provide a filter screen fixing mechanism for a sludge dewatering machine to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A filter screen fixing mechanism for a sludge dewatering machine includes a sludge dewatering machine body, filter screens, and a limiting rod. The sludge dewatering machine body has a filter screen mounting groove near its bottom wall, and two sets of filter screens are slidably connected to the inner side wall of the filter screen mounting groove.

[0010] As a further embodiment of this utility model: both ends of one side of the two sets of filter screens are fixedly connected to positioning blocks, and both ends of the sludge dewatering machine body are fixedly connected to fixing blocks at the upper and lower positions near the positioning blocks. The inner side of the four fixing blocks near the upper end is connected to a positioning rod through a limiting sliding connection.

[0011] As a further embodiment of this utility model: three sets of docking limiting rods are fixedly connected at equal distances on one side of a group of filter screens near another group of filter screens, and docking limiting grooves are opened on the other group of filter screens near the three sets of docking limiting rods. The docking limiting rods and docking limiting grooves cooperate with each other.

[0012] As a further embodiment of this utility model: the upper ends of the four sets of positioning rods are all fixedly connected to adjusting blocks, the outer sides of the four sets of positioning rods near the lower ends are fixedly connected to fixing rings, the outer sides of the four sets of positioning rods are all sleeved with springs, the four sets of springs are in a spring-extended state by default, and the upper ends of the four sets of springs are all fixedly connected to fixing blocks.

[0013] As a further embodiment of this utility model: the lower ends of the four sets of springs are fixedly connected to the fixing rings, and the inner sides of the four sets of positioning blocks are all provided with positioning grooves. The positioning grooves and positioning rods cooperate with each other, and clamping blocks are fixedly connected to the sides of the two sets of filter screens that are far apart from each other.

[0014] As a further improvement of this utility model: sealing rubber strips are fixedly connected to the sides of the two sets of clamping blocks that are close to each other, and clamping block grooves are opened on both sides of the sludge dewatering machine body at positions corresponding to the two sets of clamping blocks.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a filter screen mounting groove and sliding connection design, allowing the filter screen components to slide into and be installed more easily within the sludge dewatering machine body. This avoids the operational inconveniences of traditional fixing methods (such as screw fixing), eliminating the need for operators to lie on the ground or squat down. This is especially beneficial when the space at the bottom of the sludge dewatering machine is confined, greatly improving operational convenience. The invention employs a set of docking limiting rods and docking limiting grooves, enabling the filter screen components to be quickly docked into place. This avoids complex operating steps; operators simply align the filter screen component with the mounting groove and easily push it in place for stable installation, significantly improving installation and disassembly efficiency. The filter screen components of this invention feature a clamping block and sealing rubber strip design, effectively preventing water leakage during installation. The sealing rubber strip, in conjunction with the clamping block groove, ensures a complete seal in the filtration area after the filter screen component is installed, preventing water leakage through gaps around the mounting groove. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a filter screen fixing mechanism for a sludge dewatering machine.

[0018] Figure 2 A filter screen fixing mechanism for a sludge dewatering machine Figure 1 A magnified schematic diagram of the structure of A in the middle.

[0019] Figure 3 This is a cross-sectional schematic diagram of the filter screen component in a filter screen component fixing mechanism of a sludge dewatering machine.

[0020] Figure 4 This is a cross-sectional schematic diagram of the positioning block in a filter screen fixing mechanism of a sludge dewatering machine.

[0021] In the diagram: 1. Sludge dewatering machine body; 2. Filter screen mounting groove; 3. Filter screen component; 4. Docking limit rod; 5. Docking limit groove; 6. Positioning groove; 7. Fixing block; 8. Adjusting block; 9. Spring; 10. Fixing ring; 11. Positioning block; 14. Positioning rod; 15. Clamping block; 16. Sealing rubber strip; 17. Clamping block groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Reference Figure 1 , 2 4. This embodiment provides a filter screen fixing mechanism for a sludge dewatering machine, including a sludge dewatering machine body 1, filter screens 3, and limiting rods 13. The sludge dewatering machine body 1 has a filter screen mounting groove 2 near its bottom wall. Two sets of filter screens 3 are slidably connected to the inner side wall of the filter screen mounting groove 2. Three sets of docking limiting rods 4 are fixedly connected at equal distances to one set of filter screens 3 near the other set of filter screens 3. The other set of filter screens 3 has docking limiting grooves 5 near the three sets of docking limiting rods 4. The docking limiting rods 4 and docking limiting grooves 5 cooperate with each other. Clamping blocks 15 are fixedly connected to the sides of the two sets of filter screens 3 that are far apart from each other. Sealing rubber strips 16 are fixedly connected to the sides of the two sets of clamping blocks 15 that are close to each other. Clamping block grooves 17 are opened on both sides of the sludge dewatering machine body 1 at positions corresponding to the two sets of clamping blocks 15.

[0025] When using the filter element 3 and fixing components of this utility model, the operator needs to install the filter element 3 into the filter installation groove 2 of the sludge dewatering machine body 1 (screw press sludge dewatering machine). The two sets of filter elements 3 are installed from the filter installation grooves 2 on both sides of the sludge dewatering machine body 1. The operator aligns the filter element 3 with the filter installation groove 2 and then pushes the filter element 3 into the filter installation groove 2. When the two sets of filter elements 3 are installed, the docking limit rod 4 fixed on one side of one set of filter elements 3 is installed into the docking limit groove 5 of the other set of filter elements 3 for docking and limiting, so that the two sets of filter elements 3 are spliced ​​into a whole filter element 3. After the filter element 3 is installed in place, the clamping block 15 of the filter element 3 is inserted into the clamping block groove 17. Both the clamping block 15 and the clamping block groove 17 are fixed with sealing rubber strips 17 on one side. The sealing rubber strips 17 prevent water from leaking from the filter installation groove where the filter element 3 is installed.

[0026] Example 2

[0027] Reference Figure 1 , 3 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: both ends of one side of the two sets of filter screens 3 are fixedly connected to positioning blocks 11, and both ends of the sludge dewatering machine body 1 are fixedly connected to fixing blocks 7 near the upper and lower sides of the positioning blocks 11. The inner sides of the four sets of fixing blocks 7 near the upper end are all connected to positioning rods 14 through a limiting sliding connection. The upper ends of the four sets of positioning rods 14 are all fixedly connected to adjusting blocks 8. The outer sides of the four sets of positioning rods 14 near the lower end are fixedly connected to fixing rings 10. The outer sides of the four sets of positioning rods 14 are all fitted with springs 9. The four sets of springs 9 are in a spring-extended state by default. The upper ends of the four sets of springs 9 are all fixedly connected to fixing blocks 7, and the lower ends of the four sets of springs 9 are fixedly connected to fixing rings 10. The inner sides of the four sets of positioning blocks 11 are all provided with positioning grooves 6 through a connection. The positioning grooves 6 and the positioning rods 14 cooperate with each other.

[0028] When the staff installs the filter screen component 3 into the filter screen mounting slot 2, the side of the positioning rod 14 away from the sludge dewatering machine body 1 is inclined. When the positioning rod 14 contacts the filter screen component 3 installed inward, the filter screen component 3 pushes the positioning rod 14 up through the inclined side of the positioning rod 14. The positioning rod 14 moves upward, driving the fixing ring 10 to move. The spring 9 is compressed between the fixing ring 10 and the fixing block 7. After the filter screen component 3 is installed in place, the positioning block 11 is placed on the fixing block 7. At the same time, when the positioning rod 14 corresponds to the positioning groove 6 on the inner side of the positioning block 11, the spring 9 releases its elastic force. The spring 9 drives the fixing ring 10 to move downward. The positioning rod 14 (one side of the positioning rod 14 is inclined, and the other side of the positioning rod 14 is not inclined, to fix the installed filter screen 3) is driven into the positioning groove 6, thereby fixing the filter screen 3. When the staff needs to replace a set of filter screen 3, both sets of adjusting blocks 8 on both sides of a set of filter screen 3 are moved upward. Both sets of adjusting blocks 8 drive the positioning rod 14 upward. The two sets of positioning rods 14 drive the fixing ring 10 to compress the spring 10. The two sets of positioning rods 14 release the positioning groove 6 inside the positioning block 11 of the filter screen 3, and the staff can then take out a set of filter screen 3 from the filter screen installation groove 2.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 filter screen fixing mechanism for a sludge dewatering machine, comprising a sludge dewatering machine body (1), a filter screen (3), and a limiting rod (13), characterized in that, The sludge dewatering machine body (1) has a filter screen installation groove (2) near the bottom wall. Two sets of filter screen components (3) are slidably connected to the inner side wall of the filter screen installation groove (2). Positioning blocks (11) are fixedly connected to both ends of one side of the two sets of filter screen components (3). Fixing blocks (7) are fixedly connected to the upper and lower sides of the sludge dewatering machine body (1) near the positioning blocks (11). Positioning rods (14) are slidably connected to the inner side of the four sets of fixing blocks (7) near the upper end.

2. The filter screen fixing mechanism of a sludge dewaterer according to claim 1, characterized in that, Three sets of docking limit rods (4) are fixedly connected at equal distances on one side of the filter element (3) near another filter element (3). The other filter element (3) is provided with docking limit grooves (5) near the three sets of docking limit rods (4). The docking limit rods (4) and docking limit grooves (5) cooperate with each other.

3. The filter screen fixing mechanism of a sludge dewaterer according to claim 1, characterized in that, The upper ends of the four sets of positioning rods (14) are all fixedly connected to adjusting blocks (8), and the outer sides of the four sets of positioning rods (14) near the lower end are fixedly connected to fixing rings (10). The outer sides of the four sets of positioning rods (14) are all fitted with springs (9), and the four sets of springs (9) are in the spring extension state by default.

4. The filter screen fixing mechanism of a sludge dewatering machine according to claim 3, characterized in that, The upper ends of the four sets of springs (9) are fixedly connected to the fixing block (7), and the lower ends of the four sets of springs (9) are fixedly connected to the fixing ring (10).

5. The filter screen fixing mechanism of a sludge dewaterer according to claim 1, characterized in that, The inner sides of the four sets of positioning blocks (11) are all provided with positioning grooves (6), and the positioning grooves (6) and positioning rods (14) are used in conjunction with each other.

6. The filter screen fixing mechanism of a sludge dewaterer according to claim 1, characterized in that, Both sets of filter elements (3) are fixedly connected to clamps (15) on the side away from each other, and both sets of clamps (15) are fixedly connected to sealing rubber strips (16) on the side close to each other.

7. The filter screen fixing mechanism of a sludge dewaterer according to claim 1, characterized in that, The main body (1) of the sludge dewatering machine has clamping slots (17) on both sides corresponding to the two sets of clamping blocks (15).

Images