Quick disassembly and assembly type pressure screen

Abstract

The utility model relates to the technical field of pressurized screens, in particular to a quick disassembly and assembly type pressurized screen which comprises a box body, a feeding assembly is arranged at the top of the box body, an operation door is arranged on the front side of the box body, a spraying pipe is arranged at the top of an inner cavity of the box body, and the spraying pipe is communicated with the feeding assembly. An arc-shaped fixed plate is fixedly connected to the rear side face of the inner wall of the box body and located on the right side of the spray pipe. According to the utility model, the handle rod, the propping rod and the elastic fastener are matched with the upper fixed plate on the curved screen assembly, so that when a worker needs to dismount the screen, the fixing of the screen can be relieved by holding the handle rod and pulling the handle rod upwards; when the screen needs to be installed, a worker slowly pushes the screen surface bracket inwards through the handle, and after it is judged that the handle rod moves downwards by a certain angle, the screen surface can be fixed by holding the handle rod and forcibly pressing the handle rod downwards.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure screens, in particular to a quick-disassembly and assembly type pressure screen. Background Art

[0002] The pressure screen is a widely used advanced screening equipment; in starch production, it is used to separate starch from germ and fiber. The pressure screen has no rotating parts except the slurry pump. Therefore, the curved screen has great advantages over other types of screening equipment in terms of operation and maintenance. In order to ensure the separation and washing quality, multiple pressure screens are often used in groups. The pressure screen is generally installed inside the box during use; after use, in order to ensure the screening effect of starch in subsequent use, the pressure screen needs to be removed from the box for cleaning and replacement.

[0003] The application number is CN200620161781.3, which discloses a pressure curved screen, including a screen body, a screen surface on the screen body, a feed pipe on the upper part of the screen surface, the feed pipe is connected to a nozzle with a nozzle at the end, a collection box is provided below the screen surface, an arc-shaped cleaning water pipe is provided behind the screen surface, a cleaning nozzle is provided on the side of the cleaning water pipe facing the screen surface, and a guide sleeve on the cleaning water pipe is sleeved on the outside of the slide rod; although the above patent is provided with a cleaning water pipe to clean the pressure screen, the screen of the pressure screen is easily clogged after long-term use, and it is difficult to ensure the cleaning effect of the pressure screen by only flushing the pressure screen with the cleaning water pipe. Therefore, it is still necessary to frequently disassemble and install the pressure screen from the box body, but the existing pressure curved screen is not convenient to disassemble and install inside the box body. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a quick-disassembly and assembly type pressure screen to solve the problem that the existing pressure curved screen is not convenient to dismantle and install inside the box.

[0005] Based on the above purpose, the utility model provides a quick disassembly and assembly type pressure screen, comprising a box body, a feed assembly is arranged on the top of the box body, an operating door is arranged on the front side of the box body, a nozzle is arranged on the top of the inner cavity of the box body, the nozzle is connected with the feed assembly, and an arc-shaped fixed plate is fixedly connected to the rear side of the inner wall of the box body, and the arc-shaped fixed plate is located on the right side of the nozzle;

[0006] A positioning component is arranged on the bottom surface of the inner wall of the box;

[0007] The elastic fastener comprises a sleeve, the top of the inner cavity of the box body is provided with a sleeve, a piston rod is slidably connected in the sleeve, a spring is provided in the piston rod, one end of the spring is fixedly connected to the top of the sleeve, and the other end is fixedly connected to the piston rod;

[0008] A curved screen assembly is detachably arranged on the left side of the arc-shaped fixed plate and on the left side of the nozzle, and includes a screen and screen surface brackets fixedly connected to the front and rear ends of the screen respectively, a handle bar for support is fixedly connected between the two groups of the screen surface brackets, an upper fixed plate is fixedly connected between the two groups of the screen surface brackets, the upper fixed plate is located at the top of the screen, the piston rod abuts against the left side of the upper positioning plate, and a lower fixed plate is also fixedly connected between the two groups of the screen surface brackets, the lower fixed plate is located at the bottom of the screen and abuts against the positioning assembly;

[0009] The support is arranged on the top surface of the nozzle, and a handle bar is rotatably connected to the support. A support bar is obliquely arranged at the bottom of the handle bar, and the end of the support bar abuts against the left side of the upper fixed plate and the bottom of the piston rod.

[0010] In some optional embodiments, the positioning assembly includes a baffle, the top surface of the baffle is an inclined surface with a higher left side and a lower right side, a positioning key is fixedly connected to the top surface of the baffle and the left side surface of the positioning key is perpendicular to the top surface of the baffle, and the lower fixed plate abuts against the left side surface of the positioning key.

[0011] In some optional embodiments, the abutment rod includes a support rod, the bottom of the handle is obliquely provided with the support rod, the other end of the support rod is provided with a roller, and the roller abuts against the left side surface of the upper fixed plate.

[0012] In some optional embodiments, the bottom of the piston rod is provided with an inclined surface which is higher on the left and lower on the right to form a pressure surface.

[0013] In some optional embodiments, the bottom of the box body is connected to a first lower hopper and a second lower hopper respectively, the first lower hopper is located on the right side of the screen, and the second lower hopper is located on the left side of the screen.

[0014] In some optional embodiments, the feed assembly includes a feed pipe, which is fixedly connected to the top of the box body, and the discharge end of the feed pipe is connected to a delivery pipe, and the other end of the delivery pipe is connected to a nozzle.

[0015] From the above description, it can be seen that the utility model provides a quick-disassembly and assembly pressure screen, through the cooperation between the handle bar, the support bar and the elastic fastener and the upper fixed plate on the curved screen assembly. When the worker needs to remove the screen, he can hold the handle and pull the handle upward to release the fixation of the screen; when the screen needs to be installed, the worker slowly pushes the screen surface bracket inward through the handle, and after judging that the handle has moved down a certain angle, he holds the handle and presses the handle down hard to complete the fixation of the screen surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of B;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the screen of the utility model when it is ready for installation;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the screen of the utility model during installation;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the utility model.

[0023] The markings in the figure are:

[0024] 1. Box body; 2. Feed assembly; 3. Operating door; 4. Arc fixed plate; 5. Baffle; 6. Positioning key; 7. Screen bracket; 701. Upper fixed plate; 702. Lower fixed plate; 703. Handle; 8. Screen; 9. Spray pipe; 10. Feed pipe; 11. Support; 12. Handle bar; 13. Support rod; 14. Roller; 15. Pipe sleeve; 16. Piston rod; 17. Spring; 18. Feed pipe; 19. First lower hopper; 20. Second lower hopper. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the utility model should be the common meanings understood by people with ordinary skills in the field to which the disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] See also Figures 1 to 6 As an embodiment of the utility model, a quick disassembly and assembly type pressure screen comprises a box body 1, a feed assembly 2 is arranged on the top of the box body 1, an operating door 3 is arranged on the front side of the box body 1, a nozzle 9 is arranged on the top of the inner cavity of the box body 1, the nozzle 9 is connected with the feed assembly 2, and an arc-shaped fixed plate 4 is fixedly connected to the rear side of the inner wall of the box body 1, and the arc-shaped fixed plate 4 is located on the right side of the nozzle 9;

[0028] A positioning component is arranged on the bottom surface of the inner wall of the box body 1;

[0029] The elastic fastener includes a sleeve 15. The top of the inner cavity of the box body 1 is provided with the sleeve 15. A piston rod 16 is slidably connected in the sleeve 15. A spring 17 is provided in the piston rod 16. One end of the spring 17 is fixedly connected to the top of the sleeve 15, and the other end is fixedly connected to the piston rod 16.

[0030] The curved screen assembly is detachably arranged on the left side of the arc-shaped fixed plate 4 and on the left side of the nozzle 9, and includes a screen 8 and a screen surface bracket 7 fixedly connected to the front and rear ends of the screen 8, respectively. A handle 12 for support is fixedly connected between the two groups of screen surface brackets 7. An upper fixed plate 701 is fixedly connected between the two groups of screen surface brackets 7. The upper fixed plate 701 is located at the top of the screen 8. The piston rod 16 abuts against the left side of the upper positioning plate. A lower fixed plate 702 is also fixedly connected between the two groups of screen surface brackets 7. The lower fixed plate 702 is located at the bottom end of the screen 8 and abuts against the positioning assembly.

[0031] The support 11 is arranged on the top surface of the nozzle 9, and a handle 12 is rotatably connected to the support 11. A stopper is obliquely arranged at the bottom of the handle 12, and the end of the stopper abuts against the left side of the upper fixed plate 701 and the bottom of the piston rod 16;

[0032] When the screen 8 is installed in the box 1, Figure 1As shown, when the screen 8 needs to be removed, the handle 12 is held and pulled upward, and the handle 12 drives the push rod to revolve counterclockwise with the support 11 as the center. When the push rod rotates, it presses the piston rod 16 upward to retract the piston rod 16 into the pipe sleeve 15, and the piston rod 16 is released from the upper fixed plate 701. At this time, the screen surface bracket 7 connected to the screen 8 can be taken out of the box body 1 through the handle 703 for replacement;

[0033] When the screen 8 needs to be installed, the screen surface bracket 7 connected to the screen 8 is lifted up by the handle 703, and the lower fixed plate 702 is completely against the positioning assembly to complete the installation preparation of the screen 8. Figure 5 As shown, after that, the worker slowly pushes the screen surface bracket 7 inward through the handle 703, and when the upper fixed plate 701 touches the bottom surface of the handle bar 12, the upper fixed plate 701 will push the handle bar 12 upward, and when the upper fixed plate 701 touches the bottom surface of the piston rod 16, the upper fixed plate 701 will push the piston rod 16 upward;

[0034] During the installation process, when the upper fixed plate 701 passes over the push rod, under the influence of gravity, the push rod will naturally fall and abut against the left side of the upper fixed plate 701. At this time, the handle 12 will move downward and rotate a certain angle synchronously. Figure 4 As shown, after the worker determines that the handle 12 has moved down a certain angle, he holds the handle 12 and presses it down hard. The handle 12 will drive the push rod to revolve counterclockwise with the support 11 as the center, and the push rod will push the upper fixed plate 701 upward obliquely, so that the top of the upper fixed plate 701 abuts against the nozzle 9 and cooperates with the arc-shaped fixed plate 4. At this time, the upper fixed plate 701 completely passes over the piston rod 16. The piston rod 16 is pushed by the spring 17 to extend downward and be located on the left side of the upper fixed plate 701 to fix the position of the upper fixed plate 701, thereby fixing the position of the screen bracket 7 and the screen 8. At this time, the screen 8 is installed.

[0035] Optionally, the positioning assembly includes a baffle 5, the top surface of the baffle 5 is an inclined surface with the left side higher and the right side lower, the top surface of the baffle 5 is fixedly connected with a positioning key 6 and the left side surface of the positioning key 6 is perpendicular to the top surface of the baffle 5, and the lower fixed plate 702 abuts against the left side surface of the positioning key 6;

[0036] Due to factors such as the shape and use angle of the curved screen assembly and its lower fixed plate 702, the top surface of the baffle 5 is an inclined surface with the left side higher and the right side lower, and the left side surface of the positioning key 6 is perpendicular to the top surface of the baffle 5, so that the positioning key 6 can better abut against the lower top plate, thereby better supporting the curved screen assembly.

[0037] Optionally, the abutment rod includes a support rod 13, the bottom of the handlebar 12 is obliquely provided with the support rod 13, the other end of the support rod 13 is provided with a roller 14, and the roller 14 abuts against the left side of the upper fixed plate 701;

[0038] The roller 14 provided can reduce the wear of the support rod on the upper fixed plate 701 and the piston rod 16. At the same time, the roller 14 can also reduce the friction between the upper fixed plate 701 and the piston rod 16. When the support rod 13 and its roller 14 are required to push the upper fixed plate 701 upward obliquely, the roller 14 reduces the friction between the upper fixed plate 701 and the piston rod 16, thereby reducing the force used by the worker to hold the handle 12 and press the handle 12 down.

[0039] Optionally, the bottom of the piston rod 16 is provided with an inclined surface which is higher on the left and lower on the right to form a pressure surface, which can better facilitate the upper fixing plate 701 to push the piston rod 16 upward.

[0040] Optionally, the bottom of the box body 1 is connected to a first lower hopper 19 and a second lower hopper 20, respectively. The first lower hopper 19 is located on the right side of the screen 8, and the second lower hopper 20 is located on the left side of the screen 8;

[0041] After the material screened by the screen 8 flows out to the left side through the screen 8, it is discharged outward through the second lower hopper 20. The impurities screened by the screen 8 are always between the screen 8 and the arc-shaped fixed plate 4, and are discharged outward along the bottom of the screen 8 and the arc-shaped fixed plate 4, and finally discharged outward through the first lower hopper 19.

[0042] Optionally, the feed assembly 2 includes a feed pipe 18 , which is fixedly connected to the top of the box body 1 , and the discharge end of the feed pipe 18 is connected to the delivery pipe 10 , and the other end of the delivery pipe 10 is connected to the nozzle 9 .

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-disassembly pressure screen, comprising a box (1), a feeding assembly (2) is arranged on the top of the box (1), and an operating door (3) is arranged on the front side of the box (1), characterized in that: A nozzle (9) is provided at the top of the inner cavity of the box body (1), and the nozzle (9) is communicated with the feed assembly (2). An arc-shaped fixed plate (4) is fixedly connected to the rear side of the inner wall of the box body (1), and the arc-shaped fixed plate (4) is located on the right side of the nozzle (9); A positioning component is arranged on the bottom surface of the inner wall of the box body (1); An elastic fastener comprises a sleeve (15), the top of the inner cavity of the box body (1) is provided with the sleeve (15), a piston rod (16) is slidably connected in the sleeve (15), a spring (17) is provided in the piston rod (16), one end of the spring (17) is fixedly connected to the top of the sleeve (15), and the other end is fixedly connected to the piston rod (16); A curved screen assembly is detachably arranged on the left side of the arc-shaped fixed plate (4) and located on the left side of the nozzle (9), comprising a screen (8) and a screen surface bracket (7) fixedly connected to the front and rear ends of the screen (8), a handle (12) for support is fixedly connected between the two groups of the screen surface brackets (7), an upper fixed plate (701) is fixedly connected between the two groups of the screen surface brackets (7), the upper fixed plate (701) is located at the top of the screen (8), the piston rod (16) abuts against the left side of the upper positioning plate, and a lower fixed plate (702) is also fixedly connected between the two groups of the screen surface brackets (7), the lower fixed plate (702) is located at the bottom of the screen (8) and abuts against the positioning assembly; A support (11) is arranged on the top surface of the nozzle (9), and a handle bar (12) is rotatably connected to the support (11). A support bar is obliquely arranged at the bottom of the handle bar (12), and the end of the support bar abuts against the left side surface of the upper fixed plate (701) and the bottom of the piston rod (16).

2. The quick-detachable pressure screen according to claim 1, characterized in that: The positioning assembly comprises a baffle (5), the top surface of the baffle (5) is an inclined surface with a higher left side and a lower right side, the top surface of the baffle (5) is fixedly connected to a positioning key (6) and the left side surface of the positioning key (6) is perpendicular to the top surface of the baffle (5), and the lower fixing plate (702) abuts against the left side surface of the positioning key (6).

3. The quick-detachable pressure screen according to claim 1, characterized in that: The abutment rod comprises a support rod (13), the bottom of the handlebar (12) is provided with the support rod (13) in an inclined manner, the other end of the support rod (13) is provided with a roller (14), and the roller (14) abuts against the left side surface of the upper fixed plate (701).

4. The quick-detachable pressure screen according to claim 1, characterized in that: The bottom of the piston rod (16) is provided with an inclined surface which is higher on the left and lower on the right to form a pressure-bearing surface.

5. The quick-detachable pressure screen according to claim 1, characterized in that: The bottom of the box body (1) is connected to a first lower hopper (19) and a second lower hopper (20), respectively; the first lower hopper (19) is located on the right side of the screen (8), and the second lower hopper (20) is located on the left side of the screen (8).

6. The quick-detachable pressure screen according to claim 1, characterized in that: The feed assembly (2) comprises a feed pipe (18), wherein the feed pipe (18) is fixedly connected to the top of the box body (1), the discharge end of the feed pipe (18) is connected to a delivery pipe (10), and the other end of the delivery pipe (10) is connected to a nozzle (9).

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