Sand and stone screening device for building construction

Abstract

The utility model relates to the technical field of building construction, and discloses a gravel screening device for building construction, which comprises a baffle plate, a handle rod is arranged on the front side wall of the baffle plate, the front end of the handle rod is fixedly sleeved with a fixed holding sleeve, the outer wall of the fixed holding sleeve is provided with an expansion notch, and the outer wall of the fixed holding sleeve is provided with a baffle plate. The outer wall of the handle rod is movably sleeved with a movable holding sleeve, a fixed holding groove is formed in the outer wall of the movable holding sleeve, and a supporting shovel plate is installed at the position, close to the bottom, of the outer wall of the baffle. According to the gravel screening device for building construction, after sand is shoveled above a supporting shovel plate, a handle rod is rotated through a fixed holding sleeve, the handle rod drives the supporting shovel plate and an upper baffle to turn over through a baffle, the supporting shovel plate is turned over to the upper portion, and the upper baffle is turned over to the lower portion; the sand on the supporting shovel plate is overturned, downwards penetrates through the inner partition rod and the outer partition rod, then falls on the inner side of the upper baffle and is screened through the screening holes, and the device is small in size, convenient to use and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a sand and gravel screening device for building construction. Background Technology

[0002] Sand is used in construction. Since sand is stored in the open, it is easy for impurities to be mixed in after transportation and storage. When using it to plaster walls, these impurities can affect the plastering process. Therefore, sand needs to be screened before use to remove the impurities. However, general sand screening equipment is large and cannot be used in small construction sites, which causes inconvenience to construction. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a sand and gravel screening device for construction, which solves the problem that general sand screening equipment is too large to be used in small construction sites.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sand and gravel screening device for construction, comprising a baffle, a handle rod installed on the front side wall of the baffle, a fixed grip sleeve fixedly sleeved at the front end of the handle rod, an expansion notch formed on the outer wall of the fixed grip sleeve, a movable grip sleeve movably sleeved on the outer wall of the handle rod, a fixed grip groove formed on the outer wall of the movable grip sleeve, a supporting shovel plate installed on the outer wall of the baffle near the bottom, an installation slot formed on the side of the supporting shovel plate, an upper baffle plate being engaged inside the installation slot, a through hole formed on the surface of the baffle directly opposite the upper baffle plate, a threaded slot formed on the front side wall of the upper baffle directly opposite the through hole, a mounting bolt passing through the through hole and being installed through the thread and the threaded slot, a shovel head installed at the rear end of the supporting shovel plate, an inner partition rod installed on the rear side wall of the baffle near the upper side, and an outer partition rod installed on the rear side wall of the baffle outside the inner partition rod.

[0007] Preferably, a layer of rubber padding is adhered to the outer surface of both the fixed grip and the movable grip.

[0008] Preferably, the surface of the movable grip sleeve is provided with a movable grip groove along the front-to-back direction.

[0009] Preferably, the outer surface of the upper baffle is provided with screening holes.

[0010] Preferably, the inner and outer partition rods are inclined at the middle position inside the upper baffle near their rear ends.

[0011] Preferably, the inner and outer spacers are installed in a staggered manner.

[0012] Compared with the prior art, this utility model provides a sand and gravel screening device for construction, which has the following beneficial effects:

[0013] 1. This sand and gravel screening device for construction uses sand shovels placed above a support shovel plate. By rotating the handle through a fixed grip, the handle rotates the support shovel plate and the upper baffle plate through a baffle plate, causing the support shovel plate to rotate upwards and the upper baffle plate to rotate downwards. The sand above the support shovel plate, after rotating downwards, passes through the inner and outer partition rods and falls onto the inner side of the upper baffle plate, where it is screened through screening holes. This device is small in size, convenient to use, and easy to operate.

[0014] 2. This sand and gravel screening device for construction can replace the upper baffle with different diameter screening holes according to the requirements of sand screening. When shoveling sand, the position of the movable grip can be adjusted according to the amount of sand shoveled, so as to easily change the support and holding position to pick up the device. The handle can rotate along the inside of the movable grip, so as to facilitate the flipping of the support shovel plate and the upper baffle for screening, reducing friction on the hands. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0018] The components are: 1. baffle; 2. handle; 3. fixed grip; 4. movable grip; 5. support shovel; 6. mounting slot; 7. upper baffle; 8. screening hole; 9. mounting bolt; 10. shovel head; 11. inner partition; 12. outer partition; 13. fixed grip groove; 14. movable grip groove; 15. expansion notch. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Please see Figure 1-3 This utility model provides a sand and gravel screening device for construction, including a baffle 1. A handle 2 is installed on the front side wall of the baffle 1. A fixed grip 3 is fixedly sleeved at the front end of the handle 2. An expansion notch 15 is opened on the outer wall of the fixed grip 3. A movable grip 4 is movably sleeved on the outer wall of the handle 2. A fixed grip groove 13 is opened on the outer wall of the movable grip 4. A support shovel 5 is installed on the outer wall of the baffle 1 near the bottom. An installation slot 6 is opened on the side of the support shovel 5. An upper baffle 7 is engaged inside the installation slot 6. A through hole is opened on the surface of the baffle 1 directly opposite the upper baffle 7. A threaded slot is opened on the front side wall of the upper baffle 7 directly opposite the through hole. The bolt 9 passes through the through hole and is installed through the thread and threaded slot. The rear end of the support shovel plate 5 is equipped with a shovel head 10. An inner partition rod 11 is installed on the rear side wall of the baffle plate 1 at the upper position. An outer partition rod 12 is installed on the rear side wall of the baffle plate 1 at the position outside the inner partition rod 11. After the sand is shoveled above the support shovel plate 5, the handle rod 2 is rotated by the fixed grip sleeve 3. The handle rod 2 drives the support shovel plate 5 and the upper baffle plate 7 to flip through the baffle plate 1, so that the support shovel plate 5 flips to the top and the upper baffle plate 7 flips to the bottom. After flipping, the sand above the support shovel plate 5 passes down through the inner partition rod 11 and the outer partition rod 12 and falls into the inner side of the upper baffle plate 7 for screening through the screening hole 8. It is convenient to use and easy to operate.

[0022] Furthermore, a layer of rubber padding is adhered to the outer surface of both the fixed grip 3 and the movable grip 4 to improve softness and facilitate handheld use.

[0023] Furthermore, the surface of the movable grip 4 is provided with a movable grip groove 14 along the front-back direction, which can adjust the position of the movable grip 4 installed on the outside of the handle 2. The force of the hand gripping the outside of the movable grip 4 can control whether the movable grip 4 and the handle 2 can rotate and move back and forth. By adjusting the position of the movable grip 4, it is easy to change the support and holding position to pick up the device, and the handle 2 can rotate along the inside of the movable grip 4, which makes it easy to flip the support shovel plate 5 and the upper baffle 7 for screening, reducing friction on the hand.

[0024] Furthermore, the outer surface of the upper baffle 7 is provided with screening holes 8, through which sand is screened. The upper baffle 7 with different diameter screening holes 8 can be replaced according to the requirements for screening sand.

[0025] Furthermore, the inner partition rod 11 and the outer partition rod 12 are tilted towards the middle of the upper baffle 7 at their rear ends. When the baffle is flipped over and screened, the stones move forward along the inner partition rod 11 and the outer partition rod 12 to a position close to the baffle 1, preventing the stones from falling from the rear into the screened sand.

[0026] Furthermore, the inner partition rod 11 and the outer partition rod 12 are installed in a staggered manner. Through the cooperation of the inner partition rod 11 and the outer partition rod 12, large stones and debris in the sand are blocked, and preliminary screening is carried out to prevent them from blocking the inside of the screening hole 8 and reduce the impact of large stones on the subsequent screening of the screening hole 8.

[0027] In use, sand is shoveled onto the support shovel plate 5, and then the handle 2 is rotated by the fixed grip 3. The handle 2 drives the support shovel plate 5 and the upper baffle 7 to rotate through the baffle 1, causing the support shovel plate 5 and the upper baffle 7 to flip. The sand falls onto the upper baffle 7. During the process of the sand falling onto the upper baffle 7, large stones inside are blocked by the inner partition rod 11 and the outer partition rod 12 and concentrated near the rear side wall of the baffle 1. Then the sand contacts the surface of the upper baffle 7 and is screened through the screening hole 8. At the same time, the handle 2 is rotated slightly left and right by the fixed grip 3, causing the sand to tumble left and right along the inner side of the upper baffle 7, which further improves the screening efficiency. After screening is completed, the support shovel plate 5 is rotated to a lower position, and the screened impurities fall downward onto the surface of the support shovel plate 5, and then the impurities are poured out.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand and gravel screening device for construction work, comprising a baffle (1), characterized in that: The front side wall of the baffle (1) is provided with a handle rod (2), the front end of the handle rod (2) is fixedly sleeved with a fixed grip sleeve (3), the outer wall of the fixed grip sleeve (3) is provided with an expansion gap (15), the outer wall of the handle rod (2) is movably sleeved with a movable grip sleeve (4), the outer wall of the movable grip sleeve (4) is provided with a fixed grip groove (13), the outer wall of the baffle (1) and located at the bottom is provided with a supporting shovel plate (5), the side of the supporting shovel plate (5) is provided with a mounting clamping groove (6), the inside of the mounting clamping groove (6) is clamped with an upper baffle (7), the surface of the baffle (1) and located opposite to the upper baffle (7) is provided with a through hole, the front side wall of the upper baffle (7) and located opposite to the through hole is provided with a threaded slot, a mounting bolt (9) passes through the through hole and is mounted through the thread and the threaded slot, the rear end of the supporting shovel plate (5) is provided with a shovel head (10), the rear side wall of the baffle (1) and located at the upper side is provided with an inner partition rod (11), the rear side wall of the baffle (1) and located outside the inner partition rod (11) is provided with an outer partition rod (12).

2. The sand and gravel screening device for construction according to claim 1, characterized in that: The outer surface of the fixed grip sleeve (3) and the movable grip sleeve (4) is adhered with a layer of rubber soft pad.

3. The sand and gravel screening device for construction according to claim 1, characterized in that: The surface of the movable grip sleeve (4) is provided with a movable grip groove (14) along the front and rear direction.

4. The sand and gravel screening device for construction according to claim 1, characterized in that: The outer surface of the upper baffle (7) is provided with a screening hole (8).

5. The sand and gravel screening device for construction according to claim 1, characterized in that: The rear end of the inner partition rod (11) and the outer partition rod (12) is inclined to the middle position inside the upper baffle (7).

6. The sand and gravel screening device for construction according to claim 1, characterized in that: The inner partition rod (11) and the outer partition rod (12) are installed in a staggered manner.

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