An anti-tipping enclosed grab bucket

Abstract

This utility model relates to the technical field of sewage treatment devices. Specifically, it discloses an anti-tipping enclosed grab bucket comprising: a frame; several cleaning teeth arranged parallel to each other on the frame and capable of being inserted between the bars of a grid; a slag hopper rotatably mounted on the frame; a telescopic component, the main body of which is rotatably mounted on the frame, and the piston rod of which is rotatably connected to the slag hopper; wherein, the piston rod of the telescopic component, by extending or retracting, can move the slag hopper closer to / away from the cleaning teeth; four sets of guide and limiting components, rotatably mounted on both sides of the frame along the width direction of the slag hopper; and two guide grooves, arranged on both sides of the frame along the path of the slag hopper's vertical movement, with the guide and limiting components rotatably mounted within the guide grooves. This utility model can prevent the grab bucket from tipping over, effectively extend the service life of the grab bucket, improve the grab bucket's entry rate into the grid and its cleaning capacity, and ensure the normal operation of the equipment's slag cleaning work.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment and river management devices, and in particular to an anti-tipping enclosed grab bucket. Background Technology

[0002] Currently, in various sewage treatment and water conservancy projects, the first process step is to intercept and remove solids in the water. Commonly, solids in sewage are intercepted by a screen, and the solids intercepted by the screen are periodically grabbed and removed by an automatic screen cleaning machine to achieve the purpose of removing large solids in the pretreatment process and to ensure the normal flow of water through the screen.

[0003] For example, Chinese patent application number CN201820721915.5 discloses a grab bucket-type bar screen cleaning device, including a sewage channel, a fixed bar screen, an elevated monorail, a grab bucket device, and a hydraulic control device; a guide rail support is provided above the sewage channel, and the elevated monorail is set on the guide rail support; the grab bucket device includes a track trolley, a lifter, and a grab bucket-type bar screen, the track trolley is set below the elevated monorail, the lifter is set below the track trolley, and the grab bucket-type bar screen is set below the lifter; the fixed bar screen is set at the bottom of the sewage channel and directly opposite the opening of the grab bucket-type bar screen set above the sewage channel; a clarification tank is provided behind the sewage channel, and the sewage channel is connected to the bottom box of the clarification tank, and a water level controller is provided on the clarification tank.

[0004] It is mentioned that: the grab bucket lifting system slowly lowers the grab bucket, and the straight toothed part of the grab bucket inserts into the gap of the grid bars. Relying on its own weight, the grab bucket slides to the bottom of the grid, and at the same time cleans the grid from top to bottom. The grab bucket's lifting height is controlled by a vertical positioner set in the track trolley. When it reaches the predetermined slag removal position, the lifting system stops working, the toothed rake hydraulic control system is activated, and the arc-shaped toothed rake closes to remove slag under the push of the piston rod.

[0005] However, in the above technical solution, the weight of the grab bucket is borne by the grid. During the downward movement of the grab bucket, it needs to press against the grid and slide, which can easily cause wear on both and reduce the service life of the grab bucket. In addition, during the up and down movement of the grab bucket, there is no limit or guide for the grab bucket, which can easily cause it to tip over. The cleaning efficiency and cleaning ability of the grab bucket cannot be guaranteed. Utility Model Content

[0006] In view of the above problems, this utility model provides an anti-tipping enclosed grab bucket, the purpose of which is to extend the service life of the grab bucket, prevent the grab bucket from tipping over, improve the grab bucket's entry rate into the grid and the ability and efficiency of removing slag and debris, and ensure the water flow rate of the grid.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A rollover-resistant enclosed grab bucket is provided, comprising: a frame; several cleaning teeth arranged parallel to each other on the frame and capable of being inserted between the bars of a grid; a slag bucket rotatably mounted on the frame; a telescopic component, the main body of which is rotatably mounted on the frame, and the piston rod of which is rotatably connected to the slag bucket; wherein, the piston rod of the telescopic component can move the slag bucket closer to / away from the cleaning teeth by telescopic movement; four sets of guide and limiting components, rotatably mounted on both sides of the frame along the width direction of the slag bucket; and two guide grooves, located on both sides of the slag bucket along the path of its vertical movement, with the guide and limiting components rotatably mounted within the guide grooves.

[0009] Furthermore, each set of limiting wheels includes: an adjustable frame; a first guide wheel and a second limiting wheel, which are rotatably mounted on the adjustable frame; wherein, the central axis of the first guide wheel is parallel to the width direction of the slag hopper, and the central axis of the second limiting wheel is perpendicular to the central axis of the first guide wheel.

[0010] Furthermore, each set of limit wheels also includes: a mounting block disposed on the frame; a first strip hole formed on the mounting block; a second strip hole formed on the adjustable frame; and a bolt assembly capable of passing through the first and second strip holes to lock the adjustable frame and the mounting block together.

[0011] Furthermore, four sets of guide and limit components are symmetrically arranged on both sides of the frame.

[0012] Furthermore, the cleaning teeth are straight teeth.

[0013] The cleaning teeth are further designed to be inverted J-shaped arc teeth.

[0014] Furthermore, the slag hopper includes: a rectangular tube; several supporting ribs, which are arc-shaped and spaced at fixed intervals, and are arranged parallel to each other on the rectangular tube; a supporting rod connecting the two ends of the supporting ribs; and a filter screen with drainage holes, located between any two adjacent supporting ribs, and also between the supporting rod and the supporting ribs.

[0015] Furthermore, two telescopic components, which are hydraulic cylinders, are installed in parallel on the frame.

[0016] Furthermore, the grab also includes: rake teeth, which are set on the slag bucket and can be embedded between several cleaning teeth.

[0017] The beneficial effects of this utility model are as follows: In this utility model, the distance between the guide and limiting components on both sides of the frame can be adjusted. During the up-and-down movement of the grab bucket as a whole, the guide and limiting components slide along the guide groove, ensuring the accuracy of the grab bucket teeth inserting into the grid. By setting the guide groove and guide wheel, the weight of the grab bucket as a whole is borne by the limiting groove, preventing the weight of the grab bucket from being borne by the grid. The grab bucket does not need to press against the grid during its up-and-down movement, reducing wear between the two and preventing the grab bucket from tipping over, effectively extending the service life of the grab bucket. Furthermore, by limiting the limiting wheel through the limiting groove, the grab bucket's grid entry rate and cleaning ability are improved, ensuring the normal operation of the slag removal work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the grab provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the installation structure of the limit wheel provided in an embodiment of this application.

[0020] Figure 3 The side view of the cleaning teeth provided in the embodiment of this application is a straight tooth.

[0021] Figure 4 The side view of the cleaning teeth provided in the embodiments of this application is an inverted J-shaped arc tooth.

[0022] Among them, 1. skeleton; 2. cleaning teeth; 3. slag hopper; 31. rectangular tube; 32. support rib; 33. support rod; 34. filter screen; 35. rake teeth; 4. telescopic component; 5. adjustable frame; 51. first guide wheel; 52. second limit wheel; 53. mounting block; 54. first strip hole; 55. second strip hole. Detailed Implementation

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1 As shown in the figure, this application discloses an anti-tipping enclosed grab bucket, including: a frame 1; a plurality of cleaning teeth 2, arranged parallel to each other on the frame 1, which can be inserted between the bars of the grid; a slag hopper 3, which is rotatably mounted on the frame 1; a telescopic component 4, the main body of which is rotatably mounted on the frame 1, and the piston rod of which is rotatably connected to the slag hopper 3; wherein, the piston rod of the telescopic component 4 can move the slag hopper 3 closer to / away from the cleaning teeth 2 by telescopic movement; four sets of guide limiting components, which are rotatably arranged on both sides of the frame 1 along the width direction of the slag hopper 3; and two guide grooves (not shown in the figure), which are arranged on both sides of the slag hopper 3 along the path of the slag hopper 3 moving up and down, and the limiting wheels are rotatably arranged in the guide grooves.

[0025] It is worth mentioning that the grab bucket can be installed on the cleaning machine. The power for the grab bucket to go down and the power for the grab bucket to go up are provided by the cleaning machine. During the downward movement of the grab bucket, the cleaning teeth 2 can be inserted into the grid bars at a preset depth to push out the debris intercepted on the grid bar surface. After the grab bucket goes down to the designated position, the piston rod of the telescopic component 4 extends and pushes the slag bucket 3 close to the cleaning teeth 2 to rotate, grabbing the debris between the slag bucket 3 and the cleaning teeth 2. Finally, the cleaning machine lifts the grab bucket out as a whole.

[0026] In this invention, during the up-and-down movement of the grab bucket, the guide limiting component also slides along the guide groove. By setting the guide groove and the guide limiting component, the weight of the grab bucket is borne by the limiting groove, preventing the weight of the grab bucket from being borne by the grid. During the downward movement of the grab bucket, the grid bars always maintain a preset insertion depth, reducing wear between the two and effectively preventing the grab bucket from tipping over, thus effectively extending the service life of the grab bucket. Furthermore, by limiting the guide limiting component through the limiting groove, the grab bucket's grid entry rate and cleaning ability are improved, ensuring that the slag removal work proceeds normally.

[0027] By using this invention, a high-quality cleaning effect and high-efficiency removal efficiency can be achieved with the grab bucket. There are no permanent residues on the grid surface, and the service life can reach more than 10 years.

[0028] It is worth mentioning that the cleaning teeth 2 can be installed perpendicular to the frame 1.

[0029] Reference Figure 2 As shown, each set of limiting wheels includes: an adjustable frame 5; a first guide wheel 51 and a second limiting wheel 52, which are rotatably mounted on the adjustable frame 5; wherein, the central axis of the first guide wheel 51 is parallel to the width direction of the slag hopper 3, and the central axis of the second limiting wheel 52 is perpendicular to the central axis of the first guide wheel 51.

[0030] By setting the first guide wheel 51 to guide the entire grab bucket to move along the guide groove, and by setting the second limit wheel 52 to guide and restrict the movement of the entire grab bucket along the width direction, the stability of the vertical movement of the entire grab bucket and the accuracy and depth of the grab bucket teeth entering the grid can be effectively guaranteed, thus preventing the grab bucket from tipping over.

[0031] It is understandable that the guide groove can be C-shaped, with the first guide wheel 51 rolling in contact with two parallel sidewalls of the guide groove, and the second limiting wheel 52 rolling against the bottom surface of the guide groove.

[0032] Specifically, each set of limiting wheels also includes: a mounting block 53, which is disposed on the frame 1; a first strip hole 54, which is formed on the mounting block 53; a second strip hole 55, which is formed on the adjustable frame 5; and a bolt assembly that can pass through the first strip hole 54 and the second strip hole 55 to lock the adjustable frame 5 and the mounting block 53.

[0033] It is understood that in this embodiment, the grid is installed inside the channel opening, and the guide groove is set on both sides of the channel opening; by staggering the first strip hole 54 and the second strip hole 55 along the width direction, the relative position between the mounting block 53 and the adjustable frame 5 can be changed, thereby adjusting the distance between the limiting wheels on both sides of the width direction, so as to ensure the accuracy of the grab bucket teeth entering the grid. By changing the overall width of the grab bucket, it can adapt to the width requirements of different channels, and improve the applicability of this utility model.

[0034] It is worth mentioning that the bolt passes through the first strip hole 54 and the second strip hole 55, and one end of the bolt is locked by a nut. Tightening the nut can lock the mounting block 53 and the adjustable frame 5.

[0035] Preferably, four sets of guide and limit components are provided, with two sets of guide and limit components installed on each side of the frame 1; and two first guide wheels 51 and two first guide wheels 52 are provided on each side of the frame 1.

[0036] On the same side of the frame 1, along the direction of the grab's movement, two first guide wheels 51 are installed at a fixed distance apart, and two first guide wheels 52 are installed at a fixed distance apart, further improving the stability of the grab's guidance and limiting. Of course, the number of guidance and limiting components can be flexibly increased or decreased according to actual installation requirements.

[0037] Reference Figure 3 As shown, cleaning tooth 2 is a straight tooth.

[0038] Reference Figure 4 As shown, cleaning tooth 2 is an inverted J-shaped arc tooth.

[0039] Specifically, different types of cleaning teeth can be flexibly selected according to different usage scenarios.

[0040] Specifically, the slag hopper 3 includes: a rectangular tube 31; several supporting ribs 32, which are arc-shaped and spaced at fixed intervals, and are arranged parallel to each other on the rectangular tube 31; a supporting rod 33, which connects the two ends of the supporting ribs 32; and a filter screen 34, which has drainage holes and is located between any two adjacent supporting ribs 32.

[0041] Among them, two telescopic components 4 are installed in parallel on the frame 1. The telescopic components 4 are hydraulic cylinders, which have the characteristics of high reliability and large biting force.

[0042] In the specific installation, the main body of the telescopic component 4 is hinged to the frame 1 via a rotating shaft, the piston rod of the telescopic component 4 is hinged to the slag hopper 3 via a rotating shaft, and the slag hopper 3 is hinged to the frame 1 via a rotating shaft.

[0043] Preferably, the grab bucket further includes: rake teeth 35, which are disposed on the slag bucket 3 and can be embedded between a number of cleaning teeth 2; after the slag bucket 3 and the cleaning teeth 2 are closed, the rake teeth 35 can be embedded between the cleaning teeth 2 to prevent solid debris in the slag bucket 3 from leaking out.

[0044] It is worth mentioning that the hydraulic cylinder is made of 304 stainless steel and designed for a pressure of 10Mpa-25Mpa; the first guide wheel 51 and the second limit wheel 52 are both made of nylon, which is wear-resistant; the cleaning teeth 2 and the skeleton 1 are made of 304 stainless steel, which is corrosion-resistant.

[0045] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A roll-over protected closed grapple, characterized in that, include: Skeleton (1); Several cleaning teeth (2) are arranged in parallel on the frame (1) and can be inserted between the bars of the grid; The slag hopper (3) is rotatably mounted on the frame (1); Telescopic component (4), the main body of telescopic component (4) is rotatably mounted on frame (1), and the piston rod of telescopic component (4) is rotatably connected to slag hopper (3); wherein, the piston rod of telescopic component (4) can move the slag hopper (3) closer to / away from cleaning tooth (2) by telescopic movement; Four sets of guide and limit components are rotatably set on both sides of the frame (1) along the width direction of the slag hopper (3); Two guide grooves are set on both sides of the frame (1) along the path of the slag hopper (3) moving up and down, and the guide limiting components are rolled in the guide grooves.

2. The roll-over protected closed grapple according to claim 1, characterized in that Each set of guide limit components includes: Adjustable frame (5); The first guide wheel (51) and the second limiting wheel (52) are rotatably mounted on the adjustable frame (5); wherein the central axis of the first guide wheel (51) is parallel to the width direction of the slag hopper (3), and the central axis of the second limiting wheel (52) is perpendicular to the central axis of the first guide wheel (51).

3. The roll-over protected closed grapple of claim 2, wherein, Each set of limit wheels also includes: Mounting block (53) is set on the frame (1); The first strip hole (54) is formed on the mounting block (53); The second strip hole (55) is provided on the adjustable frame (5); The bolt assembly can pass through the first strip hole (54) and the second strip hole (55) to lock the adjustable frame (5) and the mounting block (53).

4. The roll-over protected closed grapple of claim 1, wherein, Four sets of guide limit components are set symmetrically on both sides of the skeleton (1).

5. The roll-over protected closed grapple of claim 1, wherein, The cleaning tooth (2) is a straight tooth.

6. The roll-over protected closed grapple of claim 1, wherein, The cleaning tooth (2) is an inverted J-shaped arc tooth.

7. The roll-over resistant closed grab bucket of claim 1, wherein, The slag bin (3) includes: Rectangular tube (31); Several supporting ribs (32) are arc-shaped, spaced at fixed intervals, and installed perpendicular to the rectangular tube (31); Support rod (33), connecting the two ends of support rib (32); The filter screen (34) has a water leakage hole and is located between any two adjacent support ribs (32), and also between the support rod (33) and the support rib (32).

8. The roll-over protected closed grapple of claim 1, wherein, Two telescopic components (4) are installed in parallel on the frame (1), and the telescopic components (4) are hydraulic cylinders.

9. The roll-over protected closed grapple of claim 1, wherein, Also includes: Rake teeth (35) are set on the slag hopper (3) and can be embedded between several cleaning teeth (2).

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