A mud scraper with no dead angle and easy to clean

Abstract

The present application provides a dead angle free mud scraper which is easy to clean, and belongs to the technical field of mud scrapers. The present application relates to the technical field of mud scrapers, and comprises a sedimentation tank and a conveying assembly arranged therein, and the conveying assembly comprises four sprocket shafts respectively arranged at the four corners inside the sedimentation tank, and the four sprocket shafts are connected by two chains which are symmetrically arranged front and back; a plurality of base plates are detachably connected between the two chains, and the edges on the base plates which can abut against one side of the bottom wall of the sedimentation tank are arranged in a serrated shape, and a scraper is slidably connected to each base plate via a first elastic member, and a rectangular frame bar which is the same as the chain transmission trajectory is arranged on the front and rear inner walls of the sedimentation tank, and a guide sliding opening which matches the rectangular frame bar is opened on each base plate, so as to displace the base plate along the shape trajectory of the rectangular frame bar; the present application can reduce the probability of dead angles in mud scraping during mud scraping work.

Description

Technical Field

[0001] The present application relates to the technical field of mud scrapers, and in particular to a mud scraper with no dead angles and easy to clean. Background Art

[0002] A scraper is a mechanical device used to clean the mud and other impurities that settle on the bottom of the pool in the sewage system. Common scrapers include mechanical scrapers, air flotation scrapers and cyclone scrapers. Among them, a mechanical scraper is usually composed of a mechanical arm, a scraper and other parts. Driven by the mechanical arm, the scraper can scrape up the sediment separated from the sewage and transport it to the outlet of the sedimentation tank.

[0003] The chain scraper is a type of mechanical scraper. It uses a chain instead of a mechanical arm, and the scraper is installed on each chain link of the chain. During subsequent use, the scraper can follow the chain to the top of the sedimentation tank. Compared with the conventional mechanical scraper where the scraper is located at the bottom of the sedimentation tank, it can make it more convenient for personnel to clean and maintain the scraper.

[0004] Referring to the Chinese patent application document with publication number CN113457227A and publication date October 1, 2021, entitled "A scraper for water treatment with easy replacement of scraper blades", through the cooperation of the guide adjustment part and the conveying assembly, the scraper mechanism can cyclically scrape the sludge deposited at the bottom of the sedimentation tank, and when the scraper mechanism cyclically scrapes the sludge, each scraper mechanism can be driven by the conveying assembly to move to the top of the sedimentation tank to clean the water scum.

[0005] Referring to the above technical solution, during the operation of the chain scraper, due to the transmission form of the chain joint, when there is relatively hard sediment at the bottom of the sedimentation tank, the scraper will tilt and swing together with the chain joint where it is located due to the obstruction of the sediment. The scraper may directly pass over the sediment. At this time, there will be a certain gap between the scraper and the bottom wall of the sedimentation tank, resulting in a dead angle for scraping, which can easily affect the final scraping effect. Summary of the invention

[0006] In view of this, the present application provides an easy-to-clean scraper with no dead angles, which is mainly used to solve the problem of the scraper tilting and swinging when blocked by relatively hard sediments, resulting in dead angles in scraping mud.

[0007] In order to solve the above-mentioned technical problems, the present application provides a dead angle-free scraper that is easy to clean, including a sedimentation tank and a conveying assembly arranged inside the sedimentation tank, and the conveying assembly includes four sprocket shafts respectively arranged at the four corners inside the sedimentation tank, and the four sprocket shafts are connected by two chain transmissions symmetrically arranged front and back; a plurality of substrates are detachably connected between the two chains, and the edges on the substrates that can abut against one side of the bottom wall of the sedimentation tank are serrated, and each substrate is slidably connected to a scraper through a first elastic member, and the front and rear inner walls of the sedimentation tank are provided with rectangular frame bars that are the same as the chain transmission trajectory, and each substrate is provided with a guide slide matching the rectangular frame bar, which is used to displace the substrate along the shape trajectory of the rectangular frame bar.

[0008] By adopting the above technical solution, the cooperation between the scraper and the base plate can break up the harder sediments. At the same time, under the limiting effect of the rectangular frame bar, the scraper can be prevented from tilting and swinging, thereby reducing the possibility of dead corners in the scraping process.

[0009] Optionally, the substrate is U-shaped, and the vertical plates on the front and rear sides of the substrate can respectively abut the front and rear inner walls of the sedimentation tank. A transition frame for supporting the sprocket shaft is provided between the sprocket shaft and the sedimentation tank. The transition frame is in a "<" shape or a ">" shape, and the transition frame is fixedly connected to the sedimentation tank only at its own corners. A rectangular frame bar is provided on the transition frame, and a gap retained between the rectangular frame bar and the inner wall of the sedimentation tank allows the vertical plate body of the substrate to pass through.

[0010] By adopting the above technical solution, the substrate can produce a certain cleaning effect on the front and rear inner walls of the sedimentation tank while following the movement of the chain.

[0011] Optionally, an auxiliary cleaning component is provided inside the sedimentation tank for cleaning the inner wall of the sedimentation tank that is not reached by the substrate and the scraper.

[0012] Optionally, the auxiliary cleaning component includes two scraping bars which are vertically slidably connected to the front and rear inner walls of the sedimentation tank respectively, a triangular plate is provided in the middle of the upper and lower surfaces of each scraping bar, and the inclined surfaces of the two triangular plates on the same scraping bar are arranged in parallel, and the vertical plate body of the substrate can abut against the inclined surface of the triangular plate.

[0013] By adopting the above technical solution, the scraper strip and the triangular plate, in cooperation with the base plate, can clean the middle of the front and rear inner walls of the sedimentation tank, further improving the comprehensiveness of the sludge scraping work.

[0014] Optionally, a driving motor is provided on the sedimentation tank through a truss, and the driving motor can drive the sprocket shaft at the upper right corner to rotate by chain transmission.

[0015] Optionally, a cleaning plate is slidably connected to the mud storage tank at the lower left corner of the sedimentation tank through a second elastic member, and the cleaning plate can abut against the scraper.

[0016] By adopting the above technical solution, the cleaning plate can, under the action of the second elastic member, scrape the sediment that may remain on the scraper into the mud storage tank at the lower left corner of the sedimentation tank, thereby preventing the sediment from following the scraper to move to the top of the sedimentation tank again and reducing the subsequent cleaning burden of the scraper.

[0017] Optionally, a mud pumping pipe capable of communicating with an external mud pump is provided through the side wall of the sedimentation tank, and a mud pumping port at the bottom end of the mud pumping pipe extends into a mud storage tank at the lower left corner of the sedimentation tank.

[0018] By adopting the above technical solution, when the external mud pump is in operation, the sediment inside the mud storage tank at the lower left corner of the sedimentation tank can be extracted through the mud pumping pipe.

[0019] Optionally, a slag storage tank is provided at the upper right corner of the sedimentation tank to collect slag on the surface of the liquid.

[0020] By adopting the above technical solution, when the scraper is located at the top of the sedimentation tank, the scraper can push the scum on the surface of the liquid into the slag storage tank under the drive of the chain.

[0021] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The combined scraper is used to complete the scraping work by limiting the moving trajectory of the scraper. It can prevent the scraper from tilting and swinging while breaking the harder sediment, thereby reducing the possibility of dead corners in the scraping process and improving the scraping effect.

[0023] 2. While scraping the bottom wall of the sedimentation tank, the additional scraping strips can also be used to scrape the front and rear inner walls of the sedimentation tank synchronously, further improving the comprehensiveness of the scraping work and achieving the scraping needs without dead ends as much as possible.

[0024] 3. After the scraper completes the scraping action on the bottom wall of the sedimentation tank, the sediment that may remain on the scraper can be transferred to the mud storage tank at the lower left corner of the sedimentation tank, which prevents the sediment from moving to the top of the sedimentation tank again with the scraper and reduces the subsequent cleaning burden of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a mud scraper with no dead angles and easy to clean in this application;

[0026] Figure 2 This is a cross-sectional view of the sedimentation tank for this application;

[0027] Figure 3 For this application Figure 2 A partial enlarged view of the middle area A;

[0028] Figure 4 Exploded view of the substrate and scraper for this application.

[0029] Explanation of the reference numerals: 1. sedimentation tank; 2. conveying assembly; 21. sprocket shaft; 22. chain; 3. base plate; 31. first elastic member; 32. scraper; 33. rectangular frame bar; 34. guide slide; 4. transition frame; 5. auxiliary cleaning assembly; 51. scraper bar; 52. triangular plate; 6. driving motor; 7. cleaning plate; 71. second elastic member; 8. mud suction pipe; 9. slag storage tank. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 4 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0031] Reference Figure 1 and Figure 2 This embodiment provides a mud scraper with no dead angles and is easy to clean, including a sedimentation tank 1 and a conveying component 2 and a mud scraping component arranged inside the sedimentation tank 1.

[0032] Among them, refer to Figure 1 and Figure 2 The conveying assembly 2 includes four sprocket shafts 21, a driving motor 6 and two chains 22. The four sprocket shafts 21 are respectively arranged at the four corners inside the sedimentation tank 1 and are connected by two chains 22 that are symmetrically arranged front and back. The driving motor 6 is arranged on the sedimentation tank 1 through a truss, and the driving motor 6 can drive the sprocket shaft 21 at the upper right corner to rotate by chain transmission.

[0033] Among them, refer to Figure 2 , Figure 3 and Figure 4 The scraper assembly includes a base plate 3, a first elastic member 31, a scraper 32 and two rectangular frame bars 33. The base plate 3 is detachably connected between the two chains 22 and can be set in multiple numbers. The edge of the base plate 3 that can abut against one side of the bottom wall of the sedimentation tank 1 is set in a serrated shape, and each base plate 3 is slidably connected with a scraper 32 through the first elastic member 31. The two rectangular frame bars 33 are respectively arranged on the front and rear inner walls of the sedimentation tank 1, and the transmission track of the rectangular frame bar 33 is the same as that of the chain 22. Each base plate 3 is provided with a guide slide 34 matching the rectangular frame bar 33, which is used to displace the base plate 3 along the shape track of the rectangular frame bar 33.

[0034] When carrying out the mud scraping work, the driving motor 6 drives the sprocket shaft 21 at the upper right corner to rotate, and then the four sprocket shafts 21 rotate synchronously under the transmission of the two chains 22, and the two chains 22 drive the base plate 3 to move around the four sprocket shafts 21. In this process, the scraper 32 will abut against the bottom wall of the sedimentation tank 1 due to the action of the first elastic member 31, thereby realizing the mud scraping action. When the scraper 32 contacts the harder sediment, due to the guiding and limiting effect of the rectangular frame bar 33, the base plate 3 and the scraper 32 will not tilt and swing, and the scraper 32 will overcome the elastic force of the first elastic member 31 and move upward, so that the scraper 32 is away from the bottom wall of the sedimentation tank 1 and crosses the sediment. Then, the serrated edge at the bottom end of the base plate 3 will replace the scraper 32 to perform the mud scraping action, so as to crush the harder sediment. With the continuous displacement of the chain 22, other scrapers 32 installed on the chain 22 will scrape the crushed sediment in the subsequent mud scraping work, reducing the possibility of dead angles in the mud scraping work.

[0035] In addition, refer to Figure 2 , Figure 3 and Figure 4 The substrate 3 can be arranged in a U shape, and the vertical plates on the front and rear sides of the substrate 3 can respectively abut the front and rear inner walls of the sedimentation tank 1; a transition frame 4 for carrying the sprocket shaft 21 is arranged between the sprocket shaft 21 and the sedimentation tank 1, and the transition frame 4 is arranged in a "<" shape or ">" shape, and the transition frame 4 is fixedly connected to the sedimentation tank 1 only at its own corners, and the rectangular frame bar 33 is arranged on the transition frame 4, and the gap retained between the rectangular frame bar 33 and the inner wall of the sedimentation tank 1 can allow the vertical plate body of the substrate 3 to pass through.

[0036] When the base plate 3 moves following the chain 22, the transition frame 4 can provide sufficient avoidance space for the base plate 3 while providing bearing function for the sprocket shaft 21, so that the vertical plates on the front and rear sides of the base plate 3 can scrape the front and rear inner walls of the sedimentation tank 1, further reducing the probability of producing dead corners for scraping mud.

[0037] Reference Figure 1 and Figure 2 An auxiliary cleaning assembly 5 is provided inside the sedimentation tank 1, and is used to clean the inner wall of the sedimentation tank 1 that is not touched by the substrate 3 and the scraper 32. The auxiliary cleaning assembly 5 includes a scraper bar 51 and a triangular plate 52. The scraper bar 51 is provided in two and vertically slidably connected to the front and rear inner walls of the sedimentation tank 1, respectively. A triangular plate 52 is provided in the middle of the upper and lower surfaces of each scraper bar 51, and the inclined surfaces of the two triangular plates 52 on the same scraper bar 51 are arranged in a parallel state, and the vertical plate body of the substrate 3 can abut against the inclined surface of the triangular plate 52.

[0038] When the base plate 3 moves following the chain 22, when the vertical plate body of the base plate 3 abuts against the inclined surface of the triangular plate 52, the triangular plate 52 will drive the scraper bar 51 to rise or fall as the contact point between the two changes, so that the scraper bar 51 can scrape the mud from the middle of the front and rear inner walls of the sedimentation tank 1, making the scraping work more comprehensive and effective.

[0039] Reference Figure 2 and Figure 3 A cleaning plate 7 is slidably connected to the mud storage tank at the lower left corner of the sedimentation tank 1 through a second elastic member 71 , and the cleaning plate 7 can abut against the scraper 32 .

[0040] When the scraper 32 moves to the position of the cleaning plate 7, the cleaning plate 7 will abut against the scraper 32 under the action of the second elastic member 71. As the scraper 32 continues to move, the cleaning plate 7 can scrape the sediment that may remain on the scraper 32 into the mud storage tank at the lower left corner of the sedimentation tank 1, thereby preventing the sediment from following the scraper 32 to move to the top of the sedimentation tank 1 again and reducing the subsequent cleaning burden of the scraper 32.

[0041] Reference Figure 1 and Figure 2 A mud pumping pipe 8 which can be connected to an external mud pump is provided through the side wall of the sedimentation tank 1, and the mud pumping port at the bottom end of the mud pumping pipe 8 extends to the mud storage tank at the lower left corner of the sedimentation tank 1.

[0042] When the external mud pump is in operation, the sediment inside the mud storage tank at the lower left corner of the sedimentation tank 1 can be extracted through the mud suction pipe 8, so that the mud scraping work can be carried out continuously.

[0043] Reference Figure 1 and Figure 2 A slag storage tank 9 is provided at the upper right corner of the sedimentation tank 1 for collecting slag on the surface of the liquid.

[0044] When the scraper 32 is located at the top of the sedimentation tank 1 , the scraper 32 , driven by the chain 22 , can push the scum on the surface of the liquid into the slag storage tank 9 .

[0045] The implementation principle of the embodiment of the present application is a mud scraper with no dead angle and easy to clean as follows:

[0046] When carrying out the mud scraping work, the driving motor 6 drives the sprocket shaft 21 at the upper right corner to rotate, and then the four sprocket shafts 21 rotate synchronously under the transmission of the two chains 22, and the two chains 22 drive the base plate 3 to move around the four sprocket shafts 21. In this process, the scraper 32 will abut against the bottom wall of the sedimentation tank 1 due to the action of the first elastic member 31, thereby realizing the mud scraping action. When the scraper 32 contacts the harder sediment, due to the guiding and limiting effect of the rectangular frame bar 33, the base plate 3 and the scraper 32 will not tilt and swing, and the scraper 32 will overcome the elastic force of the first elastic member 31 and move upward, so that the scraper 32 is away from the bottom wall of the sedimentation tank 1 and crosses the sediment. Then, the serrated edge at the bottom end of the base plate 3 will replace the scraper 32 to perform the mud scraping action, so as to crush the harder sediment. With the continuous displacement of the chain 22, other scrapers 32 installed on the chain 22 will scrape the crushed sediment in the subsequent mud scraping work, reducing the possibility of dead angles in the mud scraping work.

[0047] In addition, when the base plate 3 moves following the chain 22, the transition frame 4 can provide sufficient avoidance space for the base plate 3 while providing bearing function for the sprocket shaft 21, and when the vertical plate body of the base plate 3 abuts against the inclined surface of the triangular plate 52, as the contact point between the two changes, the triangular plate 52 will drive the scraper 51 to rise or fall, and the vertical plate bodies on the front and rear sides of the base plate 3 cooperate with the scraper bar 51 to scrape the front and rear inner walls of the sedimentation tank 1, making the scraping work more comprehensive and effective.

[0048] When the scraper 32 moves to the position of the cleaning plate 7, the cleaning plate 7 will abut against the scraper 32 under the action of the second elastic member 71. As the scraper 32 continues to move, the cleaning plate 7 can scrape the sediment that may remain on the scraper 32 into the mud storage tank at the lower left corner of the sedimentation tank 1, thereby preventing the sediment from following the scraper 32 to move to the top of the sedimentation tank 1 again and reducing the subsequent cleaning burden of the scraper 32.

[0049] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A mud scraper with no dead angle and easy cleaning, comprising a sedimentation tank (1) and a conveying assembly (2) arranged therein, wherein the conveying assembly (2) comprises four sprocket shafts (21) respectively arranged at four corners inside the sedimentation tank (1), and the four sprocket shafts (21) are connected by two chains (22) arranged symmetrically in front and back, characterized in that: A plurality of base plates (3) are detachably connected between the two chains (22), and the base plates (3) have a sawtooth-shaped edge that can abut against one side of the bottom wall of the sedimentation tank (1). Each base plate (3) is slidably connected to a scraper (32) via a first elastic member (31). The front and rear inner walls of the sedimentation tank (1) are both provided with rectangular frame bars (33) having the same transmission trajectory as the chains (22). Each base plate (3) is provided with a guide sliding opening (34) that matches the rectangular frame bar (33) and is used to cause the base plate (3) to move along the shape trajectory of the rectangular frame bar (33). An auxiliary cleaning component (5) is arranged inside the sedimentation tank (1) for cleaning the inner wall of the sedimentation tank (1) that is not touched by the base plate (3) and the scraper (32); the auxiliary cleaning component (5) comprises two scraper bars (51) respectively connected vertically and slidably to the front and rear inner walls of the sedimentation tank (1); a triangular plate (52) is arranged in the middle of the upper and lower surfaces of each scraper bar (51); the inclined surfaces of the two triangular plates (52) on the same scraper bar (51) are arranged in a parallel state, and the vertical plate body of the base plate (3) can abut against the inclined surface of the triangular plate (52).

2. The easy-to-clean, dead-angle-free mud scraper according to claim 1, characterized in that: The base plate (3) is arranged in a U-shape, and the vertical plates on the front and rear sides of the base plate (3) can respectively abut the front and rear inner walls of the sedimentation tank (1). A transition frame (4) for carrying the sprocket shaft (21) is arranged between the sprocket shaft (21) and the sedimentation tank (1). The transition frame (4) is arranged in a "<" shape or a ">" shape, and the transition frame (4) is fixedly connected to the sedimentation tank (1) only at its own corner. The rectangular frame bar (33) is arranged on the transition frame (4), and a gap retained between the rectangular frame bar (33) and the inner wall of the sedimentation tank (1) allows the vertical plate body of the base plate (3) to pass through.

3. The easy-to-clean, dead-angle-free mud scraper according to claim 1, characterized in that: A driving motor (6) is arranged on the sedimentation tank (1) via a truss, and the driving motor (6) can drive the sprocket shaft (21) at the upper right corner to rotate by chain transmission.

4. The easy-to-clean, dead-angle-free mud scraper according to claim 1, characterized in that: A cleaning plate (7) is slidably connected to the mud storage tank at the lower left corner of the sedimentation tank (1) via a second elastic member (71), and the cleaning plate (7) can abut against the scraper (32).

5. The easy-to-clean, dead-angle-free mud scraper according to claim 1, characterized in that: A mud pumping pipe (8) capable of being connected to an external mud pump is provided through the side wall of the sedimentation tank (1), and a mud pumping port at the bottom end of the mud pumping pipe (8) extends into a mud storage tank at the lower left corner of the sedimentation tank (1).

6. The easy-to-clean, dead-angle-free mud scraper according to claim 1, characterized in that: A slag storage tank (9) is provided at the upper right corner of the sedimentation tank (1) for collecting slag on the surface of the liquid.

Images