Extrusion mechanism and sludge dewatering device

Abstract

The utility model discloses an extrusion mechanism and a sludge dewatering device, and relates to the technical field of protection mechanisms, the extrusion mechanism comprises a transmission unit which comprises two groups of support frames, a driving belt wheel, a transmission piece, a tension piece and an extrusion block; the mounting unit comprises a plurality of groups of adjusting racks, a control gear, a connecting plate, a plurality of groups of limiting pieces and a permeation box. The device has the beneficial effects that under the action of the transmission unit and the mounting unit, the device realizes rapid extrusion dewatering operation on sludge, and is simple in structure and convenient to operate. The extrusion action interval can be adjusted according to requirements, the sludge dewatering speed is adjusted, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection mechanisms, in particular to an extrusion mechanism and a sludge dewatering device. Background Art

[0002] With the development of industrial power generation, the amount of sewage discharged has continued to increase, which has prompted the sewage treatment rate to continue to increase. Urban sludge and industrial sludge can be treated by one or more treatment methods such as concentration, stabilization, conditioning, dehydration, sterilization, drying, and incineration in accordance with the requirements of final disposal.

[0003] In the process of industrial sludge treatment, the initial concentration of sludge is an important link. At present, sludge concentration is mainly based on the principle of static infiltration, and the sludge with high water content is initially treated with water infiltration, but this process is time-consuming and time-costly. Another common method is to use screw stacking to squeeze the sludge, but this method has the problems of high maintenance cost and easy blockage. In addition, when workers replace the sludge plate, the frequent start and stop of the machine not only affects the work efficiency, but also may cause unnecessary damage to the equipment. Utility Model Content

[0004] In view of the above-mentioned prior art problems, the present utility model is proposed.

[0005] The utility model aims to provide an extrusion mechanism, which aims to solve the problem that the existing sludge concentration process is slow, time-consuming and labor-intensive.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an extrusion mechanism, which includes a transmission unit, including two groups of support frames, a driving pulley arranged on one side of each group of the support frames, a transmission member arranged on one side of the driving pulley, a tension member arranged on one side of the transmission member, and an extrusion block arranged on one side of the tension member;

[0007] The installation unit includes multiple groups of adjustment racks arranged on the inner side of the support frame, a control gear arranged on one side of the adjustment rack, a connecting plate arranged on one side of the adjustment rack, multiple groups of limit members arranged on one side of the connecting plate, and a penetration box arranged on one side of the limit member.

[0008] As a preferred solution of the extrusion mechanism of the utility model, wherein: the transmission member includes a rotating rod and a connecting arm arranged on one side of the rotating rod;

[0009] The connecting arm comprises a sleeve rod arranged on one side of the rotating rod, a connecting frame arranged on one side of the sleeve rod, and a fixing rod arranged on one side of the connecting frame.

[0010] As a preferred solution of the extrusion mechanism of the utility model, wherein: the connecting frame is provided with threaded holes which are threadedly connected to the sleeve rod and the fixing rod respectively.

[0011] As a preferred solution of the extrusion mechanism of the utility model, wherein: the tension member includes a vibration bridge, and two groups of connecting rods arranged on both sides of the vibration bridge;

[0012] One end of the connecting rod is hinged to the vibration bridge, and the other end is hinged to the extrusion block.

[0013] As a preferred solution of the extrusion mechanism of the utility model, wherein: a control handle is provided on one side of the control gear, and one end of the control gear is fixedly provided on a fixed plate;

[0014] The connecting plate includes a longitudinal connecting plate arranged on one side of the adjusting rack, and an L-shaped connecting plate fixedly arranged on one side of the longitudinal connecting plate;

[0015] The control gear is meshed with the control gear.

[0016] As a preferred solution of the extrusion mechanism of the utility model, the limiting member includes a limiting base, a telescopic tube arranged on one side of the limiting base, a spring arranged on one side of the telescopic tube, and a bearing member arranged on one side of the spring.

[0017] As a preferred solution of the extrusion mechanism of the utility model, wherein: the end surface of the bearing member is in the shape of an inclined surface, and the bearing member includes a limiting sleeve arranged at the tail portion thereof.

[0018] As a preferred solution of the extrusion mechanism of the utility model, the permeation box includes a liquid inlet end, a box body arranged on one side of the liquid inlet end, and a liquid outlet end arranged on the other side of the box body.

[0019] The beneficial effects of the extrusion mechanism of the utility model are as follows: the device realizes the rapid extrusion and dehydration of sludge through the action of the transmission unit and the installation unit, and its structure is simple and easy to operate. The extrusion action range can be adjusted according to the needs, and the sludge dehydration speed can be adjusted to improve the work efficiency.

[0020] Another object of the utility model is to provide a sludge dewatering device, which aims to solve the problem that workers need to frequently start and stop the machine when replacing the existing sludge plates, which affects the work efficiency.

[0021] In order to solve the above technical problems, the utility model also provides the following technical solutions: a sludge dewatering device, which includes an extrusion mechanism; and a dewatering unit includes a primary dewatering plate, a water blocking member arranged on one side of the primary dewatering plate, and a secondary dewatering plate arranged on one side of the primary dewatering plate.

[0022] As a preferred solution of the sludge dewatering device of the utility model, the water blocking component includes a transmission tooth plate arranged on one side of the primary dewatering plate, a transmission gear arranged on one side of the transmission tooth plate, and a water blocking tooth plate arranged on the other side of the transmission gear.

[0023] The beneficial effect of the sludge dewatering device of the utility model is as follows: the device realizes that when workers replace the sludge plate, they do not need to frequently start and stop the machine through the setting of the dewatering unit 300. Under the action of the transmission gear, when the sludge plate is pulled out, the water-blocking tooth plate enters the liquid inlet end, thereby isolating the liquid inlet end; conversely, when the sludge plate is replaced, the water-blocking tooth plate is pulled back again to open the liquid inlet end. The structure is simple and practical, and ensures the normal operation of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments 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 creative work.

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a schematic diagram of the extrusion structure in the utility model.

[0027] Figure 3 It is a schematic diagram of the installation unit structure in the utility model.

[0028] Figure 4 It is a partial cross-sectional view of the limiting member in the utility model.

[0029] Figure 5 It is a partial cross-sectional view of the present invention.

[0030] Figure 6 It is a schematic diagram of the structure of the dehydration unit in the utility model. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 1 to Figure 5 , which is the first embodiment of the utility model, and this embodiment provides an extrusion mechanism, including a transmission unit 100, including two groups of support frames 101, a driving pulley 102 arranged on one side of each group of support frames 101, a transmission member 103 arranged on one side of the driving pulley 102, a tension member 104 arranged on one side of the transmission member 103, and an extrusion block 105 arranged on one side of the tension member 104;

[0036] The mounting unit 200 includes a plurality of adjustment racks 201 arranged on the inner side of the support frame 101, a control gear 202 arranged on one side of the adjustment rack 201, a connecting plate 203 arranged on one side of the adjustment rack 201, a plurality of limit members 204 arranged on one side of the connecting plate 203, and a penetration box 205 arranged on one side of the limit member 204.

[0037] Furthermore, the transmission member 103 includes a rotating rod 103a and a connecting arm 103b disposed on one side of the rotating rod 103a;

[0038] The connecting arm 103b includes a sleeve rod 103b-1 disposed on one side of the rotating rod 103a, a connecting frame 103b-2 disposed on one side of the sleeve rod 103b-1, and a fixing rod 103b-3 disposed on one side of the connecting frame 103b-2.

[0039] Furthermore, the connecting frame 103b-2 is provided with threaded holes which are threadedly connected to the sleeve rod 103b-1 and the fixing rod 103b-3 respectively.

[0040] Furthermore, the tension member 104 includes a vibration bridge 104a, and two sets of connecting rods 104b arranged on both sides of the vibration bridge 104a;

[0041] One end of the connecting rod 104 b is hinged to the vibration bridge 104 a , and the other end is hinged to the extrusion block 105 .

[0042] It should be noted that the support frame 101 is made of a rigid material, and an I-beam can be selected, which is cheap and easy to replace and repair. The support frame 101 is arranged in two sets opposite to each other. A driving pulley 102 is fixedly arranged at the end of each set of support frames 101, and a transmission member 103 is fixedly connected to one end of the driving pulley 102. The bottom of the transmission member 103 is hinged to a tension member 104, and a group of extrusion blocks 105 are also hinged to the bottom of the tension member 104.

[0043] Preferably, one side of the two sets of driving pulleys 102 can be connected to a motor by a belt, and the motor provides a power source.

[0044] Preferably, a hinge block is provided at the axis of the driving pulley 102, and the hinge block is fixedly connected to the support frame 101, and the output end of the driving pulley 102 passes through the hinge block and is connected to the transmission member 103. The upper end of the rotating rod 103a is fixedly connected to the output end of the driving pulley, and the lower end of the rotating rod 103a is hinged to the connecting arm 103b. The sleeve rod 103b-1 is hinged to the lower end of the rotating rod 103a, and a group of connecting frames 103b-2 are threadedly connected below the sleeve rod 103b-1. The upper and lower end surfaces of the connecting frame 103b-2 are provided with threaded holes for easy connection with the fixed rod 103b-3 and the sleeve rod 103b-1. The frame structure is welded to the tension member 104 below the fixed rod 103b-3 to provide tension for the tension member 104.

[0045] Preferably, threaded holes are provided on the upper and lower end surfaces of the connecting frame 103b-2. When in use, the connecting frame 103b-2 can be rotated to adjust the spacing between the sleeve rods 103b-1 and the fixing rods 103b-3 on the upper and lower sides.

[0046] Preferably, the tension member 104 is welded to the center of the vibration bridge 104a, and the vibration bridge 104a has a certain elasticity. When the fixed rod 103b-3 is pulled by the rotating rod 103a, the vibration bridge 104a moves up and down, and has a certain shaking, which produces a certain floating extrusion when squeezing the sludge, facilitating better squeezing and initial dehydration. Two sets of connecting rods 104b are hinged on both sides of the vibration bridge 104a, and the other side of the connecting rod 104b is hinged on the side wall of the squeezing block 105, and the squeezing block 105 is arranged inside the permeation box 205.

[0047] When in use, you can choose motors of different specifications to drive the driving pulley 102 to rotate, and then the driving pulley 102 will drive the rotating rod 103a to rotate together, and the sleeve rod 103b-1 hinged on the other side of the rotating rod 103a will pull the connecting frame 103b-2 and drive the fixed rod 103b-3 to deflect together under the action of the thread. The bottom of the fixed rod 103b-3 is welded with a vibration bridge 104a, which will pull the connecting rod 104b, thereby driving the squeezing block 105 to squeeze the sludge out of the permeation box 205 below.

[0048] In summary, the device realizes the rapid squeezing and dehydrating operation of sludge through the action of the transmission unit 100 and the installation unit 200, and has a simple structure and is easy to operate. The squeezing action range can be adjusted according to demand, and the sludge dehydration speed can be adjusted to improve work efficiency.

[0049] Example 2

[0050] Reference Figure 1 to Figure 5 , which is the second embodiment of the utility model, comprises a transmission unit 100, comprising two groups of support frames 101, a driving pulley 102 arranged on one side of each group of support frames 101, a transmission member 103 arranged on one side of the driving pulley 102, a tension member 104 arranged on one side of the transmission member 103, and an extrusion block 105 arranged on one side of the tension member 104;

[0051] The mounting unit 200 includes a plurality of adjustment racks 201 arranged on the inner side of the support frame 101, a control gear 202 arranged on one side of the adjustment rack 201, a connecting plate 203 arranged on one side of the adjustment rack 201, a plurality of limit members 204 arranged on one side of the connecting plate 203, and a penetration box 205 arranged on one side of the limit member 204.

[0052] It should be noted that the support frame 101 is made of a rigid material, and an I-beam can be selected, which is cheap and easy to replace and repair. The support frame 101 is arranged in two sets opposite to each other. A driving pulley 102 is fixedly arranged at the end of each set of support frames 101, and a transmission member 103 is fixedly connected to one end of the driving pulley 102. The bottom of the transmission member 103 is hinged to a tension member 104, and a group of extrusion blocks 105 are also hinged to the bottom of the tension member 104.

[0053] Preferably, a plurality of through holes in an array are provided in the middle of the two groups of support frames 101, and a plurality of groups of stoppers 204 are provided in the through holes. The stoppers 204 are fixedly connected to the permeate box 205, and the stoppers 204 can set up the permeate box 205 to facilitate extrusion and dehydration. An adjustment rack 201 is provided on the outside of the support frame 101, and the adjustment rack 201 is in two groups and meshed with the control gear 202 up and down. A connecting plate 203 is fixedly connected to the outside of the adjustment rack 201.

[0054] Furthermore, the transmission member 103 includes a rotating rod 103a and a connecting arm 103b disposed on one side of the rotating rod 103a;

[0055] The connecting arm 103b includes a sleeve rod 103b-1 disposed on one side of the rotating rod 103a, a connecting frame 103b-2 disposed on one side of the sleeve rod 103b-1, and a fixing rod 103b-3 disposed on one side of the connecting frame 103b-2.

[0056] Furthermore, the connecting frame 103b-2 is provided with threaded holes which are threadedly connected to the sleeve rod 103b-1 and the fixing rod 103b-3 respectively.

[0057] It should be noted that, preferably, a hinge block is provided at the axis of the driving pulley 102, and the hinge block is fixedly connected to the support frame 101, and the output end of the driving pulley 102 passes through the hinge block and is connected to the transmission member 103. Among them, the upper end of the rotating rod 103a is fixedly connected to the output end of the driving pulley, and the lower end of the rotating rod 103a is hinged to the connecting arm 103b. Among them, the sleeve rod 103b-1 is hinged to the lower end of the rotating rod 103a, and a group of connecting frames 103b-2 are threadedly connected below the sleeve rod 103b-1. The upper and lower end surfaces of the connecting frame 103b-2 are provided with threaded holes, which are convenient for connecting with the fixed rod 103b-3 and the sleeve rod 103b-1. The frame structure is welded to the tension member 104 below the fixed rod 103b-3 to provide tension for the tension member 104.

[0058] Furthermore, the tension member 104 includes a vibration bridge 104a, and two sets of connecting rods 104b arranged on both sides of the vibration bridge 104a;

[0059] One end of the connecting rod 104 b is hinged to the vibration bridge 104 a , and the other end is hinged to the extrusion block 105 .

[0060] Preferably, the tension member 104 is welded to the center of the vibration bridge 104a, and the vibration bridge 104a has a certain elasticity. When the fixed rod 103b-3 is pulled by the rotating rod 103a, the vibration bridge 104a moves up and down, and has a certain shaking, which produces a certain floating extrusion when squeezing the sludge, facilitating better squeezing and initial dehydration. Two sets of connecting rods 104b are hinged on both sides of the vibration bridge 104a, and the other side of the connecting rod 104b is hinged on the side wall of the squeezing block 105, and the squeezing block 105 is arranged inside the permeation box 205.

[0061] Furthermore, a control handle 202a is provided on one side of the control gear 202, and one end of the control gear 202 is fixedly provided on a fixing plate 202b;

[0062] The connecting plate 203 includes a longitudinal connecting plate 203a disposed on one side of the adjusting rack 201, and an L-shaped connecting plate 203b fixedly disposed on one side of the longitudinal connecting plate 203a;

[0063] The control gear 202 meshes with the control gear 202 .

[0064] It should be noted that the fixing plate 202b is fixedly connected to the support frame 101, and the control gear 202 is fixed to the support frame 101. A set of control handles 202a are fixedly connected to the axis of the control gear 202 to facilitate driving the control gear 202 to rotate. When the control gear 202 rotates, the adjustment racks 201 meshed on the upper and lower surfaces are separated from each other. The tail of each set of adjustment racks 201 is fixedly connected to a longitudinal connecting plate 203a, and multiple sets of L-shaped connecting plates 203b are fixedly connected to the longitudinal connecting plate 203a, and the L-shaped connecting plates 203b are connected to the limiter 204 on the inner side of the support frame 101.

[0065] Furthermore, the limiting member 204 includes a limiting base 204a, a telescopic tube 204b disposed on one side of the limiting base 204a, a spring 204c disposed on one side of the telescopic tube 204b, and a bearing member 204d disposed on one side of the spring 204c.

[0066] Furthermore, the end surface of the bearing member 204d is in an inclined shape, and the bearing member 204d includes a limiting sleeve 204d-1 arranged at the rear portion thereof.

[0067] It should be noted that the limiting base 204a is fixedly connected to the L-shaped connecting plate 203b. The limiting base 204a is fixedly connected to the telescopic tube 204b, which penetrates the support frame 101 and is connected to the limiting base 204a. A group of springs 204c are sleeved on the upper part of the telescopic tube 204b, and a bearing member 204d is fixedly connected to the front end of the telescopic tube 204b. The end face of the bearing member 204d is inclined, which is convenient for the infiltration box 205 to be placed on the bearing member 204d from below for use. The limiting sleeve 204d is sleeved and fixedly provided at the tail of the bearing member 204d. The limiting sleeve 204d abuts against the side wall of the support frame 101, and one end of the spring 204c abuts against the side wall of the support frame 101, and the other end abuts against the limiting sleeve 204d-1. Two groups of support plates are fixedly arranged on both sides of the permeation box 205 corresponding to the support frame 101, and the support plates can be in contact with the bearing member 204d.

[0068] Furthermore, the permeate box 205 includes a liquid inlet 205a, a box body 205b disposed on one side of the liquid inlet 205a, and a liquid outlet 205c disposed on the other side of the box body 205b.

[0069] It should be noted that an infiltration net assembly is provided inside the infiltration box 205, which can perform water infiltration treatment on the sludge. Sludge water is input from the liquid inlet end on the right side. Under the action of the infiltration net assembly, the treated sludge remains on the infiltration net assembly, and the relatively clean sewage flows out from the liquid outlet end 205c below the infiltration box 205.

[0070] When in use, the position of the infiltration box 205 can be adjusted according to the water content of the sludge. The staff slowly lifts the infiltration box 205 upward from the bottom of the support frame 101. Under the action of the inclined surface of the bearing member 204d, the spring 204c shrinks inward and then is placed at the designated position as needed. After that, the motor drive of different specifications can be selected to drive the driving pulley 102 to rotate. After that, the driving pulley 102 will drive the rotating rod 103a to rotate together, and the sleeve rod 103b-1 hinged on the other side of the rotating rod 103a will pull the connecting frame 103b-2 and drive the fixed rod 103b-3 under the action of the thread to deflect together. The bottom of the fixed rod 103b-3 is welded with a vibration bridge 104a, and the vibration bridge 104a will pull the connecting rod 104b, thereby driving the extrusion block 105 to squeeze the sludge out of the lower infiltration box 205. When disassembling for cleaning, the control handle 202a can be turned to drive the control gear 202 to rotate, thereby moving away from the adjustment racks 201 on both sides, thereby pulling back the limiter 204, compressing the spring 204c, and releasing the support for the permeation box 205.

[0071] In summary, the device realizes the rapid squeezing and dehydrating operation of sludge through the action of the transmission unit 100 and the installation unit 200, and has a simple structure and is easy to operate. The squeezing action range can be adjusted according to demand, and the sludge dehydration speed can be adjusted to improve work efficiency.

[0072] Example 3

[0073] Reference Figure 1 to Figure 6 , which is the third embodiment of the utility model, this embodiment further provides a sludge dewatering device, including a dewatering unit 300 including a primary dewatering plate 301, a water blocking member 302 arranged on one side of the primary dewatering plate 301, and a secondary dewatering plate 303 arranged on one side of the primary dewatering plate 301.

[0074] Preferably, the primary dewatering plate 301 can be a mesh structure to facilitate rapid dewatering of sludge; the secondary dewatering plate 303 can perform secondary filtration on the sewage that has been completely infiltrated to improve the filtration capacity. The primary dewatering plate 301 can be quickly pulled out and replaced with a new primary dewatering plate 301 to perform the dewatering task.

[0075] Furthermore, the water blocking member 302 includes a transmission tooth plate 302a disposed on one side of the primary dewatering plate 301, a transmission gear 302b disposed on one side of the transmission tooth plate 302a, and a water blocking tooth plate 302c disposed on the other side of the transmission gear 302b.

[0076] It should be noted that a transmission tooth plate 302a is fixedly provided on one side wall of the primary dehydration plate 301 close to the liquid inlet end 205a, a transmission gear 302b is provided at a corresponding position on the side wall of the support frame 101, and the other side of the transmission gear 302b is also meshed with a water-blocking tooth plate 302c.

[0077] During use, when replacing the primary dehydration plate 301, the primary dehydration plate 301 is pulled outward and under the meshing action of the transmission gear 302b, the water-blocking tooth plate 302c originally meshed on the outside moves inward to block the liquid inlet end 205, thereby completing the water-blocking effect.

[0078] In summary, the device, through the setting of the dehydration unit 300, realizes that when workers replace the sludge plate, they do not need to frequently start and stop the machine. Under the action of the transmission gear 302b, when the sludge plate is pulled out, the water-blocking tooth plate 302c enters the liquid inlet end, thereby isolating the liquid inlet end; conversely, when the sludge plate is replaced, the water-blocking tooth plate 302c is pulled back again to open the liquid inlet end. This structure is simple and practical, and ensures the normal operation of the machine.

[0079] It is important to note that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An extrusion mechanism, Features: include, A transmission unit (100) comprises two groups of support frames (101), a driving pulley (102) arranged on one side of each group of the support frames (101), a transmission member (103) arranged on one side of the driving pulley (102), a tension member (104) arranged on one side of the transmission member (103), and an extrusion block (105) arranged on one side of the tension member (104); The mounting unit (200) comprises a plurality of groups of adjusting racks (201) arranged on the inner side of the support frame (101), a control gear (202) arranged on one side of the adjusting rack (201), a connecting plate (203) arranged on one side of the adjusting rack (201), a plurality of groups of limiting members (204) arranged on one side of the connecting plate (203), and a permeation box (205) arranged on one side of the limiting member (204).

2. The extrusion mechanism according to claim 1, Features: The transmission member (103) comprises a rotating rod (103a) and a connecting arm (103b) arranged on one side of the rotating rod (103a); The connecting arm (103b) comprises a sleeve rod (103b-1) arranged on one side of the rotating rod (103a), a connecting frame (103b-2) arranged on one side of the sleeve rod (103b-1), and a fixing rod (103b-3) arranged on one side of the connecting frame (103b-2).

3. The extrusion mechanism according to claim 2, Features: The connecting frame (103b-2) is provided with threaded holes which are respectively threadedly connected to the sleeve rod (103b-1) and the fixing rod (103b-3).

4. The extrusion mechanism according to claim 3, Features: The tension member (104) comprises a vibration bridge (104a) and two groups of connecting rods (104b) arranged on both sides of the vibration bridge (104a); One end of the connecting rod (104b) is hinged to the vibration bridge (104a), and the other end is hinged to the extrusion block (105).

5. The extrusion mechanism according to claim 4, Features: A control handle (202a) is provided on one side of the control gear (202), and one end of the control gear (202) is fixedly provided on a fixing plate (202b); The connecting plate (203) comprises a longitudinal connecting plate (203a) arranged on one side of the adjusting rack (201), and an L-shaped connecting plate (203b) fixedly arranged on one side of the longitudinal connecting plate (203a); The control gear (202) is meshed with the control gear (202).

6. The extrusion mechanism according to claim 5, Features: The limiting member (204) comprises a limiting base (204a), a telescopic tube (204b) arranged on one side of the limiting base (204a), a spring (204c) arranged on one side of the telescopic tube (204b), and a bearing member (204d) arranged on one side of the spring (204c).

7. The extrusion mechanism according to claim 6, Features: The end surface of the bearing member (204d) is in the shape of an inclined surface, and the bearing member (204d) comprises a limiting sleeve (204d-1) arranged at the rear portion thereof.

8. The squeezing mechanism according to claim 7, Features: The permeate box (205) comprises a liquid inlet end (205a), a box body (205b) arranged on one side of the liquid inlet end (205a), and a liquid outlet end (205c) arranged on the other side of the box body (205b).

9. A sludge dewatering device, Features: It comprises the extrusion mechanism described in any one of claims 1 to 8; and the dehydration unit (300) comprises a primary dehydration plate (301), a water blocking member (302) arranged on one side of the primary dehydration plate (301), and a secondary dehydration plate (303) arranged on one side of the primary dehydration plate (301).

10. The sludge dewatering device according to claim 9, Features: The water blocking member (302) comprises a transmission tooth plate (302a) arranged on one side of the primary dewatering plate (301), a transmission gear (302b) arranged on one side of the transmission tooth plate (302a), and a water blocking tooth plate (302c) arranged on the other side of the transmission gear (302b).

Images