Shield tunneling machine sewage tank facilitating residue filtering and removing

Abstract

The utility model relates to the technical field of shield tunneling machine sewage tanks, and discloses a shield tunneling machine sewage tank convenient for residue filtering and removing, which comprises a sewage tank body, a tank cover, a servo motor, a stirring shaft and symmetrical L-shaped connecting rods fixed on the outer wall of the stirring shaft, the inner wall of the sewage tank body is fixedly connected with a fixing ring, and the top of the fixing ring is connected with a mounting ring. The inner wall of the mounting ring is fixedly connected with a plurality of connecting rods, and the other end of each connecting rod is fixedly connected with a fixed cylinder; according to the shield tunneling machine sewage tank convenient for residue filtering and removing, sewage can be subjected to double-layer filtration through a filter screen and an activated carbon layer which are arranged on the inner wall of the mounting ring, and the sewage is discharged through a drainage pipe after being filtered, so that pollution can be effectively avoided, and water resources can be effectively saved; the mounting ring can be detached, and the filter screen and the activated carbon layer can be cleaned or replaced, so that the normal operation of the device is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine sewage tanks, and particularly relates to a shield machine sewage tank which is convenient for filtering and cleaning slag. Background Technique

[0002] A shield machine is a tunnel boring machine using the shield method. The construction method of the shield is that the boring machine constructs (lays) the "shield" (referring to the supporting segment) of the tunnel while boring. It is different from the open construction method. Shield machines have been widely used in urban subway construction. During the shield construction process, sewage is often generated due to flushing of segments, etc. Generally, a sewage tank is installed on the trailing trolley of the shield machine. After the sewage at the shield tail is pumped into the sewage tank by a water pump, it is pumped out of the tunnel after precipitation by the water pump;

[0003] In the prior art, as disclosed in the publication number CN216323960U, a shield machine sewage tank capable of automatic cleaning is proposed. This technical solution discloses a shield machine sewage tank capable of automatic cleaning, including a sewage tank body. A tank cover is provided at the top of the sewage tank body. A driving motor is provided at the top of the tank cover. The output shaft of the driving motor penetrates through the tank cover and extends to the outside to be connected with a stirring shaft. L-shaped connecting rods are symmetrically provided at the bottom end of the side wall of the stirring shaft. T-shaped chutes are provided at the top end and the bottom end of the side wall of each L-shaped connecting rod. A T-shaped slider is slidably connected in each T-shaped chute. One end of each T-shaped slider penetrates through the T-shaped chute and extends to the outside to be connected with a connecting plate. A scraping blade is connected to one end of each connecting plate away from the T-shaped slider. A T-shaped wedge block is snap-fitted at the opening of each T-shaped slider. By setting the scraping blades on the T-shaped sliders, the sludge attached to the inner wall of the sewage tank body can be scraped off, thereby completing the cleaning of the sewage tank body without manual labor, which is convenient and fast;

[0004] However, there is no filtering mechanism inside the shield machine sewage tank of the prior art solution, so that the sludge cannot be separated after the sewage enters the sewage tank and can only be discharged together with the sewage. This not only causes pollution but also reduces the practicability of the device;

[0005] To solve the above problems, a shield machine sewage tank which is convenient for filtering and cleaning slag is proposed in this application. Content of the Utility Model

[0006] The utility model aims to provide a shield machine sewage tank which is convenient for filtering and cleaning slag, mainly used to solve the problem that there is no filtering mechanism inside the existing shield machine sewage tank, so that the sludge cannot be separated after the sewage enters the sewage tank and can only be discharged together with the sewage. This not only causes waste of water resources but also reduces the practicability of the device.

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] A shield machine sewage tank facilitating slag filtration and slag cleaning, comprising a sewage tank body, a tank cover, a servo motor, a stirring shaft, and symmetric L-shaped connecting rods fixed to the outer wall of the stirring shaft. A fixed ring is fixedly connected to the inner wall of the sewage tank body. The top of the fixed ring is connected to an installation ring. A plurality of connecting rods are fixedly connected to the inner wall of the installation ring. The other ends of the connecting rods are fixedly connected to a fixed cylinder. A rotating cylinder is rotatably connected to the inner wall of the fixed cylinder. A rectangular block is fixedly connected to the lower end of the stirring shaft. A rectangular groove matching the rectangular block is formed at the top of the rotating cylinder. A limiting component is arranged at the lower end of the stirring shaft for fixing the rectangular block inside the rectangular groove. A filter screen is fixedly connected to the top of the inner wall of the installation ring. An activated carbon layer is fixedly connected below the filter screen inside the installation ring.

[0009] Working principle and beneficial effects of the present utility model:

[0010] 1. Working principle: When the device is in use, (a proper amount of water is injected into the sewage tank body through the water inlet pipe, and then the driving motor is started to drive the L-shaped connecting rod connected to the output shaft to rotate. While the L-shaped connecting rod rotates, it drives the T-shaped slider to rotate. The T-shaped slider drives the scraping blade connected to the connecting plate to rotate. The scraping blade contacts the inner side wall and the bottom end of the inner wall of the sewage tank body, thereby scraping off the sludge attached to the inner side wall and the bottom end of the inner wall of the sewage tank body). The content in the brackets is the prior art and is not elaborated in this application document. When sewage enters the inside of the sewage tank body, large-particle impurities in the sewage can be filtered through the filter screen arranged inside the installation ring, and small-particle impurities can be filtered through the activated carbon layer, thereby separating the impurities in the sewage. After the sewage is double-filtered through the filter screen and the activated carbon layer, it can be discharged through the drain pipe. By driving the lifting of the tank cover through the electric telescopic rod, after the tank cover rises and moves the installation ring above the sewage tank body through the stirring shaft, the limiting component is released, and the installation ring can be disassembled. Then, the filter screen and the activated carbon layer on the installation ring can be cleaned or replaced. After inserting the rectangular block at the lower end of the stirring shaft into the rectangular groove, the rectangular block can be fixed inside the rectangular groove through the limiting component. Then, by driving the lowering of the tank cover through the electric telescopic rod, after the tank cover is closely attached to the top of the sewage tank body, the device can operate normally.

[0011] 2. Beneficial effects: Through the installation ring arranged inside the sewage tank body, the filter screen and the activated carbon layer arranged on the inner wall of the installation ring can double-filter the sewage. After the sewage is filtered, it is discharged through the drain pipe. This can not only effectively avoid pollution but also effectively save water resources, thereby making the device more practical. The installation ring is fixed to the lower end of the stirring shaft through the limiting component. When the electric telescopic rod drives the tank cover to rise and the installation ring moves above the sewage tank body, the staff can disassemble the installation ring and clean or replace the filter screen and the activated carbon layer, thereby effectively ensuring the normal operation of the device.

[0012] Preferably, the limiting component includes sliding cavities opened at the lower end of the stirring shaft, and the sliding cavities are symmetrically arranged at the lower end of the stirring shaft. The lower ends of the sliding cavities extend into the interior of the rectangular block. Sliding plates are slidably connected to the interiors of the sliding cavities. One side of the sliding plate is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the sliding cavity. The upper end of the side of the sliding plate away from the spring is fixedly connected to a button. The side of the button away from the sliding plate extends out of the stirring shaft, and the button is slidably connected to the stirring shaft. The lower end of the side of the sliding plate away from the spring is fixedly connected to a limiting block. The side of the limiting block away from the sliding plate extends out of the rectangular block, and the limiting block is slidably connected to the rectangular block. The inner wall of the rotating cylinder is provided with a limiting groove matching the limiting block. After the electric telescopic rod drives the box cover to rise and the mounting ring moves above the sewage tank body, pressing the two buttons at the lower end of the stirring shaft simultaneously can drive the limiting block to slide into the interior of the sliding cavity through the sliding plate. When the limiting block disengages from the limiting groove, the mounting ring can be disassembled, which facilitates the staff to clean or replace the filter screen and the activated carbon layer on the mounting ring. While holding the button to make the limiting block enter the interior of the sliding cavity, insert the rectangular block at the lower end of the stirring shaft into the rectangular groove, and then release the button. The sliding plate will drive the limiting block to move outwards under the action of the spring, and make the limiting block engage with the limiting groove, so that the rectangular block can be fixed in the rectangular groove. Then, drive the box cover to descend through the electric telescopic rod. After the box cover is in close contact with the top of the sewage tank body, the device can operate normally.

[0013] Preferably, a plurality of positioning blocks are fixedly connected to the bottom of the mounting ring, and the positioning blocks are equidistantly arranged in a circumferential array at the bottom of the mounting ring. A plurality of positioning grooves matching the positioning blocks are opened at the top of the fixed ring. After the electric telescopic rod drives the box cover to descend and makes it in close contact with the top of the sewage tank body, the plurality of positioning blocks at the bottom of the mounting ring can just be inserted into the interior of the positioning grooves on the fixed ring, which can effectively prevent the mounting ring from rotating synchronously while the stirring shaft rotates, thereby effectively improving the stability of the device during operation.

[0014] Preferably, the corner of the bottom of the limiting block away from the sliding plate is provided with an inclined surface. By setting the corner of one side of the limiting block as an inclined surface, when the rectangular block is inserted into the rectangular groove, the inner wall of the rectangular groove will squeeze the inclined surface of the limiting block to make it automatically slide into the interior of the sliding cavity, so that it is not necessary to manually press the button to make the limiting block slide into the interior of the sliding cavity, which makes the installation of the mounting ring more convenient.

[0015] Preferably, the number of springs inside the sliding cavity is two, and the springs are symmetrically arranged inside the sliding cavity. By setting the number of springs inside the sliding cavity to two, the two springs can exert a greater thrust on the sliding plate, so that when the sliding plate makes the limiting block engage with the limiting groove under the action of the spring, it can achieve a better fixing effect on the rectangular block.

[0016] Preferably, sealing strips are fixedly connected to both the outer wall and the bottom of the mounting ring, and the sealing strips are made of rubber material. Since the rubber material has good sealing performance and is relatively soft in texture, the sealing strips provided on the outer wall and the bottom of the mounting ring not only can achieve a good sealing effect when the sealing strip at the bottom of the mounting ring abuts against the fixed ring, but also can achieve a better cleaning effect on the inner wall of the sewage tank body when the mounting ring slides up and down.

[0017] Preferably, the corners at the top of the inner wall of the rectangular groove are all chamfered. By chamfering the corners at the top of the inner wall of the rectangular groove, it is more convenient to insert the rectangular block into the rectangular groove, thus making the installation of the mounting ring more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural diagram of the whole of the present utility model;

[0019] Figure 2 is a sectional structural diagram of the whole of the present utility model;

[0020] Figure 3 is a three-dimensional structural diagram of a partially enlarged part of the present utility model;

[0021] Figure 4 is a sectional structural diagram of the whole mounting ring of the present utility model;

[0022] Figure 5 is the present utility model Figure 2 an enlarged structural diagram of part A in.

[0023] In the figure: 1, sewage tank body; 2, tank cover; 3, servo motor; 4, stirring shaft; 5, L-shaped connecting rod; 6, fixed ring; 7, mounting ring; 8, connecting rod; 9, fixed cylinder; 10, rotating cylinder; 11, rectangular block; 12, rectangular groove; 13, filter screen; 14, activated carbon layer; 15, sliding cavity; 16, sliding plate; 17, spring; 18, button; 19, limiting block; 20, limiting groove; 21, positioning block; 22, positioning groove; 23, sealing strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5, A shield machine sewage tank facilitating slag filtration and cleaning, comprising a sewage tank body 1, a tank cover 2, a servo motor 3, a stirring shaft 4, and symmetric L-shaped connecting rods 5 fixed to the outer wall of the stirring shaft 4. Appropriate water is injected into the sewage tank body 1 through a water inlet pipe, and the servo motor 3 is started to drive the rotation of the L-shaped connecting rods 5 connected to the output shaft, so as to realize the stirring operation of the sewage inside the sewage tank body 1. A fixed ring 6 is fixedly connected to the inner wall of the sewage tank body 1, the top of the fixed ring 6 is connected to an installation ring 7, and sealing strips 23 are fixedly connected to the outer wall and bottom of the installation ring 7, and the sealing strips 23 are made of rubber material. By providing the sealing strips 23 on the outer wall and bottom of the installation ring 7, the tightness of the device during operation can be better, thus effectively ensuring the normal operation of the device. When the installation ring 7 slides up and down, through the sealing strips 23 provided on the outer wall of the installation ring 7, a better cleaning effect can be achieved on the inner wall of the sewage tank body 1. A plurality of positioning blocks 21 are fixedly connected to the bottom of the installation ring 7, and the positioning blocks 21 are evenly distributed at equal intervals in a circumferential array at the bottom of the installation ring 7. A plurality of positioning grooves 22 matching the positioning blocks 21 are opened at the top of the fixed ring 6. After the electric telescopic rod drives the tank cover 2 to descend and make it closely adhere to the top of the sewage tank body 1, the plurality of positioning blocks 21 at the bottom of the installation ring 7 can just be inserted into the internal positioning grooves 22 on the fixed ring 6, which can effectively improve the stability of the device during operation. A plurality of connecting rods 8 are fixedly connected to the inner wall of the installation ring 7, the other ends of the connecting rods 8 are fixedly connected to a fixed cylinder 9, a rotating cylinder 10 is rotatably connected to the inner wall of the fixed cylinder 9, a rectangular block 11 is fixedly connected to the lower end of the stirring shaft 4, a rectangular groove 12 matching the rectangular block 11 is opened at the top of the rotating cylinder 10, and chamfers are provided at the corners of the inner wall top of the rectangular groove 12. A limiting component is provided at the lower end of the stirring shaft 4 for fixing the rectangular block 11 inside the rectangular groove 12. A filter screen 13 is fixedly connected to the top of the inner wall of the installation ring 7, and an activated carbon layer 14 is fixedly connected below the filter screen 13 inside the installation ring 7. When sewage enters the inside of the sewage tank body 1, large-particle impurities in the sewage can be filtered through the filter screen 13 provided inside the installation ring 7, and small-particle impurities can be filtered through the activated carbon layer 14, so as to separate the impurities in the sewage. After the sewage is double-filtered by the filter screen 13 and the activated carbon layer 14, it can be discharged through a drain pipe. By driving the tank cover 2 to rise by the electric telescopic rod, after the tank cover 2 rises and moves the installation ring 7 above the sewage tank body 1 through the stirring shaft 4, the limiting component is released, and the installation ring 7 can be disassembled, and then the filter screen 13 and the activated carbon layer 14 on the installation ring 7 can be cleaned or replaced. After inserting the rectangular block 11 at the lower end of the stirring shaft 4 into the rectangular groove 12, the rectangular block 11 can be fixed inside the rectangular groove 12 through the limiting component, and then the tank cover 2 is driven to descend by the electric telescopic rod. After the tank cover 2 closely adheres to the top of the sewage tank body 1, the device can operate normally.

[0026] As Figure 2 and Figure 5As shown in the figure, the limiting component includes a sliding cavity 15 opened at the lower end of the stirring shaft 4, and the sliding cavity 15 is symmetrically arranged at the lower end of the stirring shaft 4. The lower end of the sliding cavity 15 extends into the interior of the rectangular block 11. A sliding plate 16 is slidably connected to the interior of the sliding cavity 15. On one side of the sliding plate 16, symmetric springs 17 are fixedly connected. The other end of the spring 17 is fixedly connected to the inner wall of the sliding cavity 15. At the upper end of the side of the sliding plate 16 away from the spring 17, a button 18 is fixedly connected. The side of the button 18 away from the sliding plate 16 extends out of the stirring shaft 4, and the button 18 is slidably connected to the stirring shaft 4. At the lower end of the side of the sliding plate 16 away from the spring 17, a limiting block 19 is fixedly connected. The side of the limiting block 19 away from the sliding plate 16 extends out of the rectangular block 11, and the limiting block 19 is slidably connected to the rectangular block 11. The corner at the bottom of the limiting block 19 away from the sliding plate 16 is provided with an inclined surface. A limiting groove 20 matching the limiting block 19 is opened on the inner wall of the rotating cylinder 10. After the electric telescopic rod drives the cover 2 to rise and the mounting ring 7 moves above the sewage tank body 1, simultaneously pressing the two buttons 18 at the lower end of the stirring shaft 4 can drive the limiting block 19 to slide into the interior of the sliding cavity 15 through the sliding plate 16. When the limiting block 19 disengages from the limiting groove 20, the mounting ring 7 can be disassembled. In this way, it is convenient for the staff to clean or replace the filter screen 13 and the activated carbon layer 14 on the mounting ring 7. When the rectangular block 11 at the lower end of the stirring shaft 4 is inserted into the rectangular groove 12, the inner wall of the rectangular groove 12 will squeeze the inclined surface of the limiting block 19 to make it automatically slide into the interior of the sliding cavity 15. After the rectangular block 11 completely enters the rectangular groove 12, the sliding plate 16 will drive the limiting block 19 to move outwards under the action of the spring 17, and the limiting block 19 will be engaged with the limiting groove 20, so that the rectangular block 11 can be fixed in the rectangular groove 12. Then, the electric telescopic rod drives the cover 2 to descend. After the cover 2 is closely attached to the top of the sewage tank body 1, the device can operate normally.

[0027] As can be seen from the above, the specific implementation manner of the present utility model is as follows:

[0028] When the device is in use, (an appropriate amount of water is injected into the sewage tank body through the water inlet pipe, and then the drive motor is started to drive the rotation of the L-shaped connecting rod connected to the output shaft. While the L-shaped connecting rod rotates, it drives the rotation of the T-shaped slider, and the T-shaped slider drives the scraper connected to the connecting plate to rotate. The scraper contacts the inner side wall and the bottom end of the inner wall of the sewage tank body, so as to scrape off the sludge attached to the inner side wall and the bottom end of the inner wall of the sewage tank body). The content in the parentheses is the prior art and is not elaborated too much in this application document. When sewage enters the inside of the sewage tank body 1, large particle impurities in the sewage can be filtered through the filter screen 13 arranged inside the mounting ring 7, and small particle impurities can be filtered through the activated carbon layer 14, so as to separate the impurities in the sewage. After the sewage is double-filtered through the filter screen 13 and the activated carbon layer 14, it can be discharged through the drain pipe. This can not only effectively avoid pollution, but also effectively save water resources, thus making the device more practical. After the electric telescopic rod drives the cover 2 to rise and the mounting ring 7 moves above the sewage tank body 1, at the same time, pressing the two buttons 18 at the lower end of the stirring shaft 4 can drive the limiting block 19 to slide into the sliding cavity 15 through the sliding plate 16. When the limiting block 19 disengages from the limiting groove 20, the mounting ring 7 can be disassembled, so that it is convenient for the staff to clean or replace the filter screen 13 and the activated carbon layer 14 on the mounting ring 7. When the rectangular block 11 at the lower end of the stirring shaft 4 is inserted into the rectangular groove 12, the inner wall of the rectangular groove 12 will squeeze the inclined surface of the limiting block 19 to make it slide automatically into the sliding cavity 15. After the rectangular block 11 completely enters the rectangular groove 12, the sliding plate 16 will drive the limiting block 19 to move outwards under the action of the spring 17, and make the limiting block 19 engage with the limiting groove 20, so that the rectangular block 11 can be fixed inside the rectangular groove 12. Then, the electric telescopic rod drives the cover 2 to descend. After the cover 2 is closely attached to the top of the sewage tank body 1, the device can operate normally.)

[0029] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shield machine sewage tank facilitating slag filtration and cleaning, comprising a sewage tank body (1), a tank cover (2), a servo motor (3), a stirring shaft (4), and symmetric L-shaped connecting rods (5) fixed to the outer wall of the stirring shaft (4), characterized in that, The inner wall of the sewage tank body (1) is fixedly connected with a fixed ring (6). The top of the fixed ring (6) is connected with an installation ring (7). The inner wall of the installation ring (7) is fixedly connected with a plurality of connecting rods (8). The other ends of the connecting rods (8) are fixedly connected with a fixed cylinder (9). The inner wall of the fixed cylinder (9) is rotatably connected with a rotating cylinder (10). The lower end of the stirring shaft (4) is fixedly connected with a rectangular block (11). The top of the rotating cylinder (10) is provided with a rectangular groove (12) matching the rectangular block (11). The lower end of the stirring shaft (4) is provided with a limiting component for fixing the rectangular block (11) inside the rectangular groove (12). The top of the inner wall of the installation ring (7) is fixedly connected with a filter net (13). Inside the installation ring (7) and below the filter net (13), an activated carbon layer (14) is fixedly connected.

2. The sewage tank of a shield machine facilitating slag filtration and slag cleaning according to claim 1, wherein: The limiting component includes a sliding cavity (15) opened at the lower end of the stirring shaft (4), and the sliding cavities (15) are symmetrically arranged at the lower end of the stirring shaft (4). The lower ends of the sliding cavities (15) extend into the inside of the rectangular block (11). Inside the sliding cavities (15), sliding plates (16) are slidably connected. One side of the sliding plate (16) is fixedly connected with a spring (17). The other end of the spring (17) is fixedly connected with the inner wall of the sliding cavity (15). The upper end of the side of the sliding plate (16) away from the spring (17) is fixedly connected with a button (18). The side of the button (18) away from the sliding plate (16) extends out of the stirring shaft (4), and the button (18) is slidably connected with the stirring shaft (4). The lower end of the side of the sliding plate (16) away from the spring (17) is fixedly connected with a limiting block (19). The side of the limiting block (19) away from the sliding plate (16) extends out of the rectangular block (11), and the limiting block (19) is slidably connected with the rectangular block (11). The inner wall of the rotating cylinder (10) is provided with a limiting groove (20) matching the limiting block (19).

3. The sewage tank of a shield machine facilitating slag filtration and slag cleaning according to claim 1, characterized in that: The bottom of the installation ring (7) is fixedly connected with a plurality of positioning blocks (21), and the positioning blocks (21) are evenly distributed in a circumferential array at the bottom of the installation ring (7). The top of the fixed ring (6) is provided with a plurality of positioning grooves (22) matching the positioning blocks (21).

4. The sewage tank of a shield machine facilitating slag filtration and slag cleaning according to claim 2, characterized in that: The corner of the bottom of the limiting block (19) away from the sliding plate (16) is provided with an inclined surface.

5. The sewage tank of a shield machine facilitating slag filtration and slag cleaning according to claim 2, wherein: The number of the springs (17) inside the sliding cavity (15) is two, and the springs (17) are symmetrically arranged inside the sliding cavity (15).

6. The sewage tank of a shield machine facilitating slag filtration and slag cleaning according to claim 1, wherein: The outer wall and the bottom of the installation ring (7) are both fixedly connected with a sealing strip (23), and the sealing strip (23) is made of rubber material.

7. A shield machine sewage tank facilitating slag filtration and slag cleaning according to claim 1, characterized in that: The corners at the top of the inner wall of the rectangular groove (12) are all provided with chamfers.

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