Sand screening mechanism for building construction
By designing a sand screening mechanism including mounting frame, screen plate, fixing chamber and vibration motor, the problems of poor fixing stability of screen plates and low discharge efficiency of large particles in the prior art are solved, and the rapid replacement of screen plates is achieved and automatic cleaning reduces the labor burden of staff and improves cleaning efficiency.
Patent Information
- Application Number
- CN202421017877.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the existing sand screening mechanism for construction, the screen plate is fixed by the spring tension, which is poor in stability and inconvenient to replace, and cannot be quickly discharged when large-grain sand and gravel are screened out, which increases the labor burden and cleaning efficiency of staff. Low.
A sand screening mechanism including mounting frame, screen plate, fixing chamber, bidirectional lead screw, limit rod, vibration motor and collection box is designed. The rapid disassembly and replacement of screen plates is achieved through the cooperation of the two-way lead screw and limit rod. , the vibration motor and the driving motor are used to automatically dump large particles of sand and gravel, and the automatic collection of sand is achieved through the collection box and roller.
It improves the installation stability and replacement of screen boards, reduces the labor burden of staff, improves cleaning efficiency, and realizes automatic collection of sand and automatic discharge of large particles of sand and gravel.
Smart Images
Figure CN222267829U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand screening mechanisms, and more specifically, to a sand screening mechanism for construction. Background Art
[0002] During the construction process, a sand screening mechanism is often used to screen out large particles of sand and gravel in the sand, and then the sand and other materials are mixed to form concrete or cement for use in construction. During the use of the existing sand screening mechanism for construction, when the screen plate is damaged and needs to be disassembled and replaced, since most screen plates are fixed by spring tension, the screen plates fixed in this way have poor stability and are not easy to replace; secondly, during the use of the existing sand screening mechanism for construction, when the screened sand and gravel are too large and too much, they cannot be discharged quickly, and the staff need to perform post-processing and removal, which increases the labor burden of the staff. At the same time, the cleaning work efficiency is low. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the problems existing in the prior art, the utility model provides a sand screening mechanism for construction to solve the technical problem mentioned in the background technology that in the use of the existing sand screening mechanism for construction, most of the sieve plates are fixed by spring tension, and the sieve plates fixed in this way have poor stability and are not easy to replace.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening mechanism for construction, comprising a mounting frame, a mounting slot is provided at the upper end of the mounting frame, a screen plate is movably provided in the mounting slot, four fixed chambers are provided in the mounting frame, a fixed plate is movably provided in each of the fixed chambers, two fixed chambers on the same side are rotatably connected with a bidirectional lead screw, the bidirectional lead screw is threadedly connected with the fixed plate, a fixed rod is fixedly provided on one side of the fixed plate, one end of the fixed rod passes through the fixed chamber and is inserted into the screen plate, and one end of the bidirectional lead screw passes through the mounting frame and is fixedly connected with a turning handle;
[0007] Two limit rods are fixedly provided on both sides of the installation frame, and the limit rods are movably connected to a U-shaped support frame. One end of each limit rod passes through the support frame and is fixedly connected to a limit plate. A support plate fixedly connected to the installation frame is fixedly provided at the lower end of the support frame, and the support plate is hingedly connected to a base.
[0008] The utility model is further configured that a U-shaped shielding frame is provided at the upper end of the installation frame, a cover plate is rotatably provided on the shielding frame, and a vibration motor is fixedly provided on one side of the shielding frame to facilitate vibration of the installation frame.
[0009] The utility model is further configured that a first spring is provided on the outer movable sleeve of each limiting rod to facilitate the movement of the limiting rod.
[0010] The utility model is further configured such that the upper end of the base is recessed inwardly to form a driving chamber, a driving motor is fixedly provided on one side of the base, and the driving end of the driving motor extends into the driving chamber and is fixedly connected to a screw rod rotatably connected to the driving chamber to facilitate the rotation of the screw rod.
[0011] The utility model is further configured that a movable seat is threadedly connected to the screw rod, and two support rods are hingedly connected to the movable seat, and the upper end of each support rod is hingedly connected to the support frame to facilitate the rotation of the support rod.
[0012] The utility model is further configured that one side of the base is recessed inwardly to form a placement groove, a collecting box is movably arranged in the placement groove, and a plurality of rollers are arranged at the lower end of the collecting box to facilitate the collection of sand passing through the sieve plate.
[0013] The utility model is further configured such that one side of the base is recessed inward to form two movable grooves, each of which has an insertion rod movably passing through it, one end of the insertion rod extending to the outside of the base, and the other end of the insertion rod inserted into the collection box, so as to fix the collection box.
[0014] The utility model is further configured that a movable plate is provided on the insertion rod extending into the movable groove, and a second spring is provided on the movable sleeve outside each insertion rod to facilitate the movement of the insertion rod.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides a sand screening mechanism for construction, which has the following beneficial effects:
[0017] 1. The sieve plate can be quickly disassembled and replaced by cooperating with the mounting frame, mounting groove, sieve plate, fixing chamber, fixing plate, bidirectional lead screw, fixing rod and turning handle. No spring is used in the whole installation process, which increases the stability of the sieve plate installation. At the same time, the operation method is simple and quick, so it is convenient to replace the sieve plate.
[0018] 2. Through the coordination of the limit rod, support frame, limit plate, support plate, base, shielding frame, cover plate, vibration motor, first spring, drive chamber, drive motor, screw, movable seat and support rod, large particles of sand and gravel can be automatically dumped out after the sand screening is completed, without the need for manual removal by staff, which reduces the labor burden of staff and improves the cleaning efficiency.
[0019] 3. By cooperating with the placement trough, the collection box, the roller, the movable trough, the insertion rod, the movable plate and the second spring, the sand that meets the requirements after screening can be automatically collected, and the collection box can be fixed to the base to avoid the movement of the collection box during the collection process. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of a sand screening mechanism for construction in use;
[0021] Figure 2 A schematic diagram of the overall structure of a sand screening mechanism for construction in use from another perspective;
[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the base and its connecting parts when the screen plate is installed;
[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the installation frame and its connecting parts when the screen plate is installed;
[0024] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the base and its connecting parts when the collection box is in a fixed state.
[0025] In the figure: 1. installation frame; 2. installation groove; 3. screen plate; 4. fixing chamber; 5. fixing plate; 6. bidirectional screw; 7. fixing rod; 8. turning handle; 9. limiting rod; 10. supporting frame; 11. limiting plate; 12. supporting plate; 13. base; 14. shielding frame; 15. cover plate; 16. vibration motor; 17. first spring; 18. driving chamber; 19. driving motor; 20. screw; 21. moving seat; 22. supporting rod; 23. placement groove; 24. collecting box; 25. roller; 26. moving groove; 27. plug rod; 28. moving plate; 29. second spring. DETAILED DESCRIPTION
[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0029] See also Figure 1-5 A sand screening mechanism for construction, comprising a mounting frame 1, a mounting slot 2 is provided at the upper end of the mounting frame 1, a sieve plate 3 is movably provided in the mounting slot 2, four fixed chambers 4 are provided in the mounting frame 1, a fixed plate 5 is movably provided in each of the fixed chambers 4, two fixed chambers 4 on the same side are rotatably connected with a bidirectional screw 6, the bidirectional screw 6 is threadedly connected with the fixed plate 5, a fixing rod 7 is fixedly provided on one side of the fixed plate 5, one end of the fixing rod 7 passes through the fixed chamber 4 and is inserted into the sieve plate 3, one end of the bidirectional screw 6 passes through the mounting frame 1 and is fixedly connected with a turning handle 8;
[0030] Two limit rods 9 are fixedly provided on both sides of the installation frame 1, and the limit rods 9 are movably connected to a U-shaped support frame 10. One end of each limit rod 9 passes through the support frame 10 and is fixedly connected to a limit plate 11. A support plate 12 fixedly connected to the installation frame 1 is fixedly provided at the lower end of the support frame 10, and the support plate 12 is hingedly connected to a base 13.
[0031] In this embodiment, when the sieve plate 3 needs to be replaced, the two handles 8 are turned in sequence, and the handles 8 drive the bidirectional screw 6 to rotate, so that the two fixed plates 5 move away from the fixed chamber 4, and the fixed plates 5 drive the fixing rods 7 to move, so that the fixing rods 7 are moved out of the sieve plate 3, and the sieve plate 3 is pushed upward, so that the sieve plate 3 is moved out of the mounting groove 2, thereby removing the sieve plate 3, and the replaced sieve plate 3 can be installed in the mounting groove 2 of the mounting frame 1 using the opposite operation.
[0032] More specifically, the handle 8 can be rotated to release the fixing rod 7 from fixing the sieve plate 3, and the sieve plate 3 can be removed for replacement. When the sieve plate 3 is in use, large sand and gravel that have not passed through the sieve plate 3 will stay above the sieve plate 3. When the support frame 10 rotates, the support frame 10 drives the support plate 12 to rotate around the hinged connection with the base 13, and at the same time, the support frame 10 drives the limit rod 9, the mounting frame 1 and the sieve plate 3 to rotate, thereby dumping the large sand and gravel on the sieve plate 3.
[0033] See also Figure 1-5, as an implementation method for rotating the support frame 10: a U-shaped shielding frame 14 is provided at the upper end of the installation frame 1, a cover plate 15 is rotatably provided on the shielding frame 14, a vibration motor 16 is fixedly provided on one side of the shielding frame 14, a first spring 17 is movably sleeved on the outer side of each of the limit rods 9, the upper end of the base 13 is recessed inward to form a driving chamber 18, a driving motor 19 is fixedly provided on one side of the base 13, a driving end of the driving motor 19 extends into the driving chamber 18 and is fixedly connected to a screw 20 rotatably connected to the driving chamber 18, a moving seat 21 is threadedly connected to the screw 20, and two support rods 22 are hingedly connected to the moving seat 21, and the upper end of each of the support rods 22 is hingedly connected to the support frame 10.
[0034] Specifically, the vibration motor 16 is started, and the vibration motor 16 drives the shielding frame 14 and the mounting frame 1 to vibrate. The shielding frame 14 drives the limiting rod 9 to move on the support frame 10, and the limiting plate 11 limits the limiting rod 9. As the first spring 17 undergoes elastic deformation, the mounting frame 1 drives the installed screen plate 3 to vibrate, thereby sifting the sand on the screen plate 3. The sand that meets the requirements will pass through the screen plate 3, and the large particles of sand and gravel that do not meet the requirements will stay above the screen plate 3. The drive motor 19 is started, and the drive motor 19 drives the screw 20 to rotate, so that the moving seat 21 moves along the drive chamber 18. The moving seat 21 drives one end of the support rod 22 to rotate around the hinged connection with the moving seat 21, and the other end to rotate around the hinged connection with the support frame 10. At the same time, the support rod 22 pushes the support frame 10 to rotate the support frame 10.
[0035] See also Figure 1-5 As an implementation method for fixing the collection box 24: one side of the base 13 is recessed inward to form a placement groove 23, and a collection box 24 is movably arranged in the placement groove 23. A plurality of rollers 25 are arranged at the lower end of the collection box 24. One side of the base 13 is recessed inward to form two movable grooves 26. A plug rod 27 movably penetrates each of the movable grooves 26. One end of the plug rod 27 extends to the outside of the base 13, and the other end of the plug rod 27 is inserted into the collection box 24. A movable plate 28 is arranged on the plug rod 27 extending into the movable groove 26, and a second spring 29 is movably sleeved on the outer side of each of the plug rods 27.
[0036] Specifically, the insertion rod 27 is pulled, and the insertion rod 27 drives the movable plate 28 to move. The second spring 29 is compressed, pushing the collection box 24, and the roller 25 rotates, so that the collection box 24 is placed in the placement groove 23. The insertion rod 27 is released, and under the push of the second spring 29, the movable plate 28 drives the insertion rod 27 to move back to the original position, and one end of the insertion rod 27 is inserted into the collection box 24, so that the collection box 24 is fixed. During the use of the entire sand screening mechanism, the sand passing through the screen plate 3 will fall into the collection box 24 for collection.
[0037] In summary, when the overall equipment is in use:
[0038] When the collection box 24 needs to be fixed in the placement groove 23, the insertion rod 27 is pulled, and the insertion rod 27 drives the movable plate 28 to move, the second spring 29 is compressed, pushing the collection box 24, and the roller 25 rotates, so that the collection box 24 is placed in the placement groove 23, and the insertion rod 27 is released. Under the push of the second spring 29, the movable plate 28 drives the insertion rod 27 to move back to the original position, and one end of the insertion rod 27 is inserted into the collection box 24, thereby fixing the collection box 24.
[0039] When the sand needs to be screened, the sand is placed on the sieve plate 3. At this time, the cover plate 15 is in a closed state, and the vibration motor 16 is started. The vibration motor 16 drives the shielding frame 14 and the mounting frame 1 to vibrate, and the shielding frame 14 drives the limiting rod 9 to move on the supporting frame 10. The limiting plate 11 limits the limiting rod 9. The first spring 17 undergoes elastic deformation, and the mounting frame 1 drives the installed sieve plate 3 to vibrate, thereby screening the sand on the sieve plate 3. The sand that meets the requirements will fall through the sieve plate 3 into the collection box 24 for collection, and the large particles of sand and gravel that do not meet the requirements will stay above the sieve plate 3. Start. The driving motor 19 is driven, and the driving motor 19 drives the screw 20 to rotate, so that the moving seat 21 moves along the driving chamber 18, and the moving seat 21 drives one end of the support rod 22 to rotate around the hinged connection with the moving seat 21, and the other end rotates around the hinged connection with the support frame 10. At the same time, the support rod 22 pushes the support frame 10 to rotate the support frame 10, and the support frame 10 drives the support plate 12 to rotate around the hinged connection with the base 13. At the same time, the support frame 10 drives the limit rod 9, the installation frame 1, the shielding frame 14 and the screen plate 3 to rotate, and the cover plate 15 is automatically opened under the action of gravity, so that the large particles of sand and gravel on the screen plate 3 are dumped out.
[0040] When the sieve plate 3 needs to be replaced, the two handles 8 are turned in sequence. The handles 8 drive the bidirectional screw 6 to rotate, so that the two fixed plates 5 move away from the fixed chamber 4. The fixed plates 5 drive the fixing rods 7 to move, so that the fixing rods 7 are moved out of the sieve plate 3, and the sieve plate 3 is pushed upward to be moved out of the mounting groove 2, thereby removing the sieve plate 3. The replaced sieve plate 3 can be installed in the mounting groove 2 of the mounting frame 1 using the opposite operation.
[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A sand screening mechanism for construction, comprising a mounting frame (1), characterized in that: The upper end of the installation frame (1) is provided with an installation groove (2), a sieve plate (3) is movably arranged in the installation groove (2), four fixed chambers (4) are arranged in the installation frame (1), a fixed plate (5) is movably arranged in each of the fixed chambers (4), two fixed chambers (4) on the same side are rotatably connected with a bidirectional lead screw (6), the bidirectional lead screw (6) is threadedly connected to the fixed plate (5), a fixed rod (7) is fixedly arranged on one side of the fixed plate (5), one end of the fixed rod (7) passes through the fixed chamber (4) and is inserted into the sieve plate (3), and one end of the bidirectional lead screw (6) passes through the installation frame (1) and is fixedly connected with a turning handle (8); Two limit rods (9) are fixedly provided on both sides of the installation frame (1), and the limit rods (9) are movably connected to a U-shaped support frame (10). One end of each limit rod (9) passes through the support frame (10) and is fixedly connected to a limit plate (11). A support plate (12) fixedly connected to the installation frame (1) is fixedly provided at the lower end of the support frame (10), and the support plate (12) is hingedly connected to a base (13).
2. A sand screening mechanism for construction according to claim 1, characterized in that: A U-shaped shielding frame (14) is provided at the upper end of the installation frame (1), a cover plate (15) is rotatably provided on the shielding frame (14), and a vibration motor (16) is fixedly provided on one side of the shielding frame (14).
3. A sand screening mechanism for construction according to claim 2, characterized in that: A first spring (17) is provided on the outer movable sleeve of each limiting rod (9).
4. A sand screening mechanism for construction according to claim 3, characterized in that: The upper end of the base (13) is recessed inward to form a driving chamber (18), and a driving motor (19) is fixedly provided on one side of the base (13). The driving end of the driving motor (19) extends into the driving chamber (18) and is fixedly connected to a screw rod (20) rotatably connected to the driving chamber (18).
5. A sand screening mechanism for construction according to claim 4, characterized in that: A movable seat (21) is threadedly connected to the screw rod (20), and two support rods (22) are hingedly connected to the movable seat (21), and the upper end of each support rod (22) is hingedly connected to the support frame (10).
6. A sand screening mechanism for construction according to any one of claims 1 or 2, characterized in that: One side of the base (13) is recessed inward to form a placement groove (23), a collection box (24) is movably arranged in the placement groove (23), and a plurality of rollers (25) are arranged at the lower end of the collection box (24).
7. A sand screening mechanism for construction according to claim 6, characterized in that: One side of the base (13) is recessed inward to form two movable grooves (26), and an insertion rod (27) is movably inserted into each of the movable grooves (26). One end of the insertion rod (27) extends to the outside of the base (13), and the other end of the insertion rod (27) is inserted into the collection box (24).
8. A sand screening mechanism for construction according to claim 7, characterized in that: A movable plate (28) is provided on the insertion rod (27) in the movable groove (26), and a second spring (29) is movablely sleeved on the outer side of each insertion rod (27).