Sand screening device for municipal engineering construction
By designing a second screen and support structure that is easy to rotate in the municipal engineering sand screening device, combined with the cleaning mechanism of through-hole plates and spikes, the problem of difficulty in discharge of the screening mechanism is solved, and efficient separation of sand and stone is achieved. Cleaning, convenient screening and collection process.
Patent Information
- Application Number
- CN202420335282.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-23
AI Technical Summary
In the existing sand screening device for municipal engineering, it is difficult to discharge the material in the screening mechanism located in the middle, which affects the effective screening and separation of sand and stone.
A sand screening device including a first and a second screen is designed, which facilitates rotation and discharge through a movable connection and support structure, and cleans up the stuck sand and stone through a combined structure of through-hole plate and spikes. Improve discharge efficiency and cleaning convenience.
The convenient cutting of the second screen and the effective separate collection of sand and gravel are achieved, which improves screening efficiency and cleaning convenience, and reduces sand and gravel residues.
Smart Images
Figure CN222241358U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of municipal engineering, and in particular to a sand screening device for municipal engineering construction. Background Art
[0002] A large amount of fine sand is needed in the construction of municipal engineering projects. However, the sand just salvaged from the river contains coarse sand of varying sizes, so it needs to be screened to obtain the required fine sand; at the same time, the sand with larger particle size can be used for other construction projects to increase the utilization rate.
[0003] The existing Chinese patent with the announcement number CN214555114U discloses a sand screening device for municipal engineering, which includes a screening device body. The inner cavity of the screening device body is provided with a first screening mechanism and a second screening mechanism in sequence from top to bottom.
[0004] With respect to the above-mentioned related technologies, the applicant believes that some current sand screening devices usually have a first and a second layer for screening sand and gravel of different sizes, but the screening mechanism located in the middle is usually difficult to discharge materials, so there is still room for improvement. Utility Model Content
[0005] In order to make it easier for the screening mechanism located in the middle of a sand screening device with two layers for screening sand to discharge materials, the present application provides a sand screening device for municipal engineering construction.
[0006] The sand screening device for municipal engineering construction provided in this application adopts the following technical solution:
[0007] A sand screening device for municipal engineering construction comprises a box body supported by a bracket, a feed inlet is arranged at the top of the box body, and a discharge outlet is arranged at the bottom of the box body; a screening mechanism is arranged in the box body, and the screening mechanism comprises a first screen and a second screen, the filter holes of the second screen have a smaller aperture than the first screen, and the second screen is movably connected in the box body; the second screen is a sieve plate arranged opposite to each other, the ends of the opposite sieve plates are rotatably connected to the inner wall of the box body, and the opposite sieve plates are supported and closed by a supporting structure; the supporting structure comprises a driving plate rotatably connected to the lower side of the movable end of the sieve plate to drive the sieve plate to be closed or opened.
[0008] By adopting the above technical solution, the first sieve and the second sieve respectively retain sand and gravel of different particle sizes; the second sieve is a relative sieve plate, which is easier to rotate and discharge materials, and the supporting structure supports the relative sieve plate to be closed, so that the sand and gravel retained by the second sieve are collected separately from the fine sand.
[0009] Preferably, the support structure further comprises a control rod rotatably connected to the driving plate, the control rod is disposed outside the box body and slides horizontally, and the control rod is fixed to the box body through a fixing structure.
[0010] By adopting the above technical solution, the control rod is linked with the drive plate and the screen plate. When the control rod is pulled horizontally outside the box, the drive plate drives the screen plate to rotate and open to lower the material; the fixed structure realizes the positioning of the control rod.
[0011] Preferably, the fixing structure includes a fixing plate rotatably connected to the side wall of the box body and a fixing groove opened on the control rod; when the relative screen plates are closed, the fixing plate is rotated and positioned in the fixing groove.
[0012] By adopting the above technical solution, the fixed plate can be rotated upward to be positioned in the fixed groove to realize the positioning of the control rod; it can also be rotated downward to disengage from the fixed groove to realize the horizontal sliding of the control rod, which is convenient for controlling the closing and opening relative to the screen plate, thereby achieving the purpose of screening sand and gravel and convenient unloading.
[0013] Preferably, a through-hole plate connected to the side wall of the box body by a lifting structure is provided between the first sieve and the sieve plate, and a plurality of spikes are fixed on the upper and lower end surfaces of the through-hole plate. When the through-hole plate is translated, the spikes can correspond to the filter holes on the first sieve and the sieve plate respectively.
[0014] By adopting the above technical solution, some sand and stones may be stuck on the first sieve and the second sieve during the sand screening process. By setting a through-hole plate between the first sieve and the second sieve, and setting spikes on the upper and lower end surfaces of the through-hole plate, the through-hole plate can be moved up and down to allow the spikes to penetrate the filter holes, thereby conveniently cleaning the sand and stones that may be stuck on the first sieve and the second sieve, thereby improving the cleaning convenience and reducing the residual sand and stones.
[0015] Preferably, one end of the through-hole plate is passed through the outside of the box, and the other end is movably connected to the corresponding inner wall of the box; the lifting structure includes a lifting plate that is lifted and connected to the outside of the side wall of the box and a lifting groove that is opened on the side wall of the box and for the lifting plate to slide, the lifting plate is installed on the end of the through-hole plate that passes through the outside of the box and the lifting plate covers the lifting groove, and the through-hole plate can slide relative to the lifting plate; the lifting plate is supported and positioned by a cross bar that slides horizontally on the outer side wall of the box.
[0016] By adopting the above technical solution, the through-hole plate can slide relative to the lifting plate, which is convenient for translation so that the spikes correspond to the filter holes on the first sieve and the sieve plate; the lifting plate supports the through-hole plate and facilitates the use of cross bars to support the through-hole plate from the outside; the cross bars support the lateral positioning of the lifting plate and the through-hole plate, so that the through-hole plate is stably located between the first sieve and the sieve plate when not in use.
[0017] Preferably, a slider is fixed on the side wall of the crossbar, and a slide groove for the slider to slide is opened on the outer side wall of the box; when the through-hole plate is located between the first screen and the screen plate, the crossbar slides horizontally and abuts against the lower part of the lifting plate.
[0018] By adopting the above technical solution, the slider and the slide groove provide space for the sliding of the cross bar. When the through-hole plate is located between the first screen and the screen plate and the filter holes are not cleaned, the cross bar abuts and supports the lifting plate to position the first screen.
[0019] Preferably, the adjacent side walls of the closed and opposite sieve plates are fixed by magnetic attraction.
[0020] By adopting the above technical solution, magnetic fixation helps to improve the connection stability of the closed relative sieve plates.
[0021] In summary, the present application includes at least one of the following beneficial technical effects:
[0022] 1. The first screen and the second screen respectively intercept sand and gravel of different particle sizes; the second screen is a relative screen plate, which is easier to rotate and discharge, and the support structure supports the relative screen plate to be closed, so that the sand and gravel intercepted by the second screen are separated from the fine sand and collected;
[0023] 2. The control rod is linked with the driving plate and the screen plate. When the control rod is pulled horizontally outside the box, the driving plate drives the screen plate to rotate and open to unload materials; the fixed plate rotates upward to be positioned in the fixed groove, and the control rod is positioned when the relative screen plate is closed; in addition, the fixed plate can be rotated downward to escape from the fixed groove, so as to realize the horizontal sliding of the control rod, which is convenient for controlling the opening of the relative screen plate, thereby achieving the purpose of screening sand and stone and convenient unloading.
[0024] 3. Some sand and stones may be stuck on the first and second sieves during the sand screening process. By setting a through-hole plate between the first and second sieves and setting spikes on the upper and lower end surfaces of the through-hole plate, the through-hole plate can be moved up and down to allow the spikes to penetrate the filter holes, thereby conveniently cleaning the sand and stones that may be stuck on the first and second sieves, improving the cleaning convenience and reducing the residual sand and stones. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;
[0026] Figure 2 It is a schematic diagram of a partial explosion structure of the first screen, the through-hole plate and the second screen of the embodiment of the present application;
[0027] Figure 3 It is a schematic diagram of the structure of the embodiment of the present application in which the through-hole plate moves in the lifting groove after the lifting plate is hidden.
[0028] Explanation of the reference numerals in the accompanying drawings: 1. bracket; 2. box body; 21. feed hopper; 3. screening mechanism; 31. first screen; 32. second screen; 4. lifting structure; 41. lifting plate; 42. lifting slot; 5. cross bar; 6. screen plate; 7. supporting structure; 71. driving plate; 72. control rod; 8. fixing structure; 81. fixing plate; 82. fixing slot; 9. through-hole plate; 91. spikes. DETAILED DESCRIPTION
[0029] The present application is further described in detail below in conjunction with the accompanying drawings.
[0030] The present application embodiment discloses a sand screening device for municipal engineering construction, referring to Figure 1 , 2 A sand screening device for municipal engineering construction comprises a box body 2 supported by a bracket 1, a feed hopper 21 is arranged on the upper part of the box body 2, and a discharge port is opened at the bottom; a screening mechanism 3 is arranged in the box body 2, and the screening mechanism 3 comprises a first screen 31 and a second screen 32, the pore size of the filter hole of the second screen 32 is smaller than that of the first screen 31, the first screen 31 retains the sand and gravel with the largest particle size, the second screen 32 retains the sand and gravel with the smaller particle size, and the required fine sand with the smallest particle size is screened out from the discharge port.
[0031] Reference Figure 1 , 2 A through-hole plate 9 is provided between the first screen 31 and the second screen 32 and is connected to the side wall of the box body through a lifting structure 4. One end of the through-hole plate 9 is passed through the outside of the box body 2, and the other end is movably connected to the corresponding inner wall of the box body 2. The end of the through-hole plate 9 located in the box body 2 can be translated and lifted in the box body 2; a plurality of spikes 91 are fixed to the upper and lower end surfaces of the through-hole plate 9.
[0032] Reference Figure 1 , 3 The lifting structure 4 includes a lifting plate 41 connected to the outside of the side wall of the box body 2 and a lifting groove 42 opened on the side wall of the box body 2 for the lifting plate 41 to slide. The lifting plate 41 is installed on the end of the through-hole plate 9 passing through the outside of the box body 2. One end of the through-hole plate 9 passing through the outside of the box body 2 is fixed to the lifting plate 41 by magnetic attraction, so that when the through-hole plate 9 is not in use, the spikes 91 can be staggered with the filter holes on the first screen 31 and the second screen 32 to avoid affecting the feeding.
[0033] Reference Figure 1 , 2 The lifting plate 41 covers the lifting groove 42 to prevent the lifting groove 42 from being exposed. When in use, the through-hole plate 9 can slide horizontally relative to the lifting plate 41 so that the spikes 91 correspond to the filter holes of the first screen 31 and the second screen 32 respectively, and then the lifting of the lifting plate 41 is manually driven to drive the lifting of the through-hole plate 9 to clean the filter holes of the first screen 31 and the second screen 32 respectively.
[0034] Reference Figure 1 , 2 The outer wall of the box body 2 is slidably connected with a cross bar 5 to support and position it. A slider is fixed on the side wall of the cross bar 5, and a sliding groove for the slider to slide is opened on the outer wall of the box body 2; when the through-hole plate 9 is located between the first screen 31 and the second screen 32, the cross bar 5 slides horizontally and abuts against the lower part of the lifting plate 41 to support the lifting plate 41 to position the through-hole plate 9.
[0035] Reference Figure 1 , 2 The second screen 32 is a sieve plate 6 arranged opposite to each other, and the ends of the opposite sieve plates 6 are rotatably connected to the inner wall of the box body 2, and the side walls of the closed opposite sieve plates 6 are fixed by magnetic attraction. It should be pointed out that the magnetic attraction is only for auxiliary fixing and does not hinder the relative sieve plate 6 from rotating downward to open.
[0036] Reference Figure 1 , 2 The relative sieve plates 6 are supported and closed by a supporting structure 7; the supporting structure 7 includes a driving plate 71 rotatably connected to the lower side of the movable end of the sieve plate 6 and a control rod 72 rotatably connected to the driving plate 71, the control rod 72 is passed through the outside of the box body 2 and slides horizontally, and the control rod 72 is fixed to the box body 2 by a fixing structure 8.
[0037] Reference Figure 1 , 2 The fixed structure 8 includes a fixed plate 81 rotatably connected to the side wall of the box body 2 and a fixed groove 82 opened on the control rod 72; when the relative screen plate 6 is closed, the fixed plate 81 is rotated and positioned in the fixed groove 82; when the fixed plate 81 is rotated upward to position the control rod 72, when the fixed plate 81 is rotated downward to escape from the fixed groove 82, the control rod 72 can slide horizontally, thereby facilitating the control of the closing and opening of the relative screen plate 6, respectively achieving the purpose of screening sand and stone and convenient unloading.
[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A sand screening device for municipal engineering construction, comprising a box body (2) supported by a bracket (1), wherein the box body (2) has a feed inlet at the top and a discharge outlet at the bottom; the device is characterized in that: The housing (2) is provided with a screening mechanism (3), the screening mechanism (3) comprising a first screen (31) and a second screen (32), the filter holes of the second screen (32) having a smaller aperture than the first screen (31), and the second screen (32) being movably connected to the housing (2); the second screen (32) being a screen plate (6) arranged opposite to each other, the opposite ends of the screen plates (6) being rotatably connected to the inner wall of the housing (2), and the opposite screen plates (6) being supported and closed by a support structure (7); the support structure (7) comprising a driving plate (71) rotatably connected to the lower side of the movable end of the screen plate (6) for driving the screen plate (6) to close or open.
2. The sand screening device for municipal engineering construction according to claim 1 is characterized in that: The support structure (7) also includes a control rod (72) rotatably connected to the drive plate (71); the control rod (72) is disposed outside the box body (2) and slides horizontally; the control rod (72) is fixed to the box body (2) via a fixing structure (8).
3. The sand screening device for municipal engineering construction according to claim 2 is characterized in that: The fixing structure (8) comprises a fixing plate (81) rotatably connected to the side wall of the box body (2) and a fixing groove (82) provided on the control rod (72); when the opposite sieve plates (6) are closed, the fixing plate (81) is rotated and positioned in the fixing groove (82).
4. The sand screening device for municipal engineering construction according to claim 1, characterized in that: A through-hole plate (9) is provided between the first screen (31) and the screen plate (6) and is connected to the side wall of the box body (2) by means of a lifting structure (4). A plurality of spikes (91) are fixed to both upper and lower end surfaces of the through-hole plate (9). When the through-hole plate (9) moves horizontally, the spikes (91) can correspond to the filter holes on the first screen (31) and the screen plate (6) respectively.
5. The sand screening device for municipal engineering construction according to claim 4, characterized in that: One end of the through-hole plate (9) is inserted outside the box body (2), and the other end is movably connected to the corresponding inner wall of the box body (2); the lifting structure (4) comprises a lifting plate (41) connected to the outside of the side wall of the box body (2) and a lifting groove (42) opened on the side wall of the box body (2) and for the lifting plate (41) to slide; the lifting plate (41) is installed on the end of the through-hole plate (9) inserted outside the box body (2) and the lifting plate (41) covers the lifting groove (42); the through-hole plate (9) can slide relative to the lifting plate (41); the lifting plate (41) is supported and positioned by a cross bar (5) that slides horizontally on the outer wall of the box body (2).
6. The sand screening device for municipal engineering construction according to claim 5, characterized in that: A sliding block is fixed on the side wall of the cross bar (5), and a sliding groove for the sliding block to slide is provided on the outer side wall of the box body (2); when the through-hole plate (9) is located between the first screen (31) and the screen plate (6), the cross bar (5) slides horizontally and abuts against the lower part of the lifting plate (41).
7. The sand screening device for municipal engineering construction according to claim 1, characterized in that: The adjacent side walls of the closed and opposite sieve plates (6) are fixed by magnetic attraction.