Sand screening machine for constructional engineering

Abstract

The utility model discloses a sand screening machine for constructional engineering. The sand screening machine comprises a sand screening machine body and a cleaning assembly. The sand screening machine body comprises a machine body, a supporting frame and a screen body. The supporting frame is connected with the machine body through a reciprocating mechanism. The screen body is fixedly arranged on the supporting frame, and one end of the screen body penetrates through the supporting frame and extends to the outside. The cleaning assembly is arranged on the screen body; the cleaning assembly comprises a movable groove, an open groove, a movable plate, an extrusion hole, a fixed plate, a movable block, a transmission rod and a spring. A movable groove is formed in the screen body; an opening groove is formed in the movable groove; the movable plate is arranged in the movable groove; a plurality of extrusion holes are uniformly formed in the movable plate; the fixed plate is fixedly arranged in the movable groove; the movable block is slidably arranged in the movable groove; at least one transmission rod penetrates through the fixed plate, and the two ends of the transmission rod are fixedly connected with the movable plate and the movable block respectively; the transmission rod is sleeved with the spring. According to the sand screening machine for constructional engineering, each screen mesh hole in the screen mesh body can be cleaned, and the cleaning effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a sand screening machine for construction engineering. Background Art

[0002] A construction project refers to an engineering entity formed through the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. Among them, "buildings" refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, residence, study, and public activities.

[0003] For example, a sand screening machine for construction projects provided by the Chinese utility model patent with publication number CN218282662U includes a box, a feeding hopper, a discharging hopper and a sand screening mechanism, wherein the feeding hopper is fixedly connected to the upper end of the box, the discharging hopper is fixedly connected to the lower end of the box, and the sand screening mechanism is arranged inside the box; the sand screening mechanism includes a screen, a first electric telescopic rod, a slag discharge channel and a blocking block, one end of the screen is hinged on the inner wall of the box, the lower end of the first electric telescopic rod is hinged on the inner wall of the box, the slag discharge channel is fixedly connected to the outer wall of the box, and the blocking block is arranged in the slag discharge channel. The sand screening machine for construction projects is provided with a scraping mechanism, so that the scraper can scrape back and forth on the upper surface of the screen, which can not only speed up the screening speed of the screen for sand, but also avoid the accumulation of a large amount of sand and other solid impurities on the screen to cause the screen to be blocked.

[0004] During the construction process, a sand screening machine is needed to screen the sand and gravel. When the sand screening machine is in use, some sand and gravel that match the mesh size on the screen are easily stuck on the screen. In order not to affect the sand screening effect of the screen, the sand and gravel that are blocked on the screen need to be cleaned. However, in the prior art, most of the screens are cleaned by scraping back and forth on the surface of the screen. In this way, it is easy to scrape some sand from the screen to the slag discharge port, resulting in a waste of sand. Moreover, it is difficult for the scraper to completely clean the sand that blocks the screen. There will always be some tightly stuck sand remaining on the screen, which will still affect the sand screening effect of the screen. Utility Model Content

[0005] The utility model aims to provide a sand screening machine for construction engineering, so as to solve the problem that the scraper proposed in the above background technology can easily scrape part of the sand from the screen to the slag discharge port, resulting in sand waste.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening machine for construction engineering, comprising a sand screening machine body, a cleaning assembly and a driving assembly; the sand screening machine body comprises a machine body, a support frame and a screen body; the support frame is connected to the machine body through a reciprocating mechanism; the screen body is fixed on the support frame, and one end of the screen body extends to the outside through the support frame; the cleaning assembly is arranged on the screen body; the cleaning assembly comprises a movable groove, an opening groove, a movable plate, an extrusion hole, a fixed plate, a movable block, a transmission rod and a spring; the screen body is A movable groove is provided; an open groove is provided in the movable groove; the movable plate is slidably arranged in the movable groove; a plurality of extrusion holes are evenly provided on the movable plate; the fixed plate is fixed in the movable groove; the movable block is slidably arranged in the movable groove, and the end of the movable block extends to the outside through the movable groove and the open groove; at least one transmission rod is passed through the fixed plate, and the two ends of the transmission rod are respectively fixedly connected to the movable plate and the movable block; the spring is sleeved on the transmission rod, and the two ends of the spring are respectively fixedly connected to the fixed plate and the movable block.

[0007] Preferably, the center of the sieve hole of the sieve body is on the same straight line as the center of the extrusion hole.

[0008] Preferably, the movable block is in a T-shaped structure, and the dimension of the movable block on a side close to the transmission rod is larger than the dimension of the movable block on a side away from the transmission rod.

[0009] Preferably, the driving assembly includes a driving motor, a rotating disk and a protrusion; the driving motor is fixed to one side of the machine body through a motor seat; the rotating disk is sleeved on the output shaft of the driving motor; and the protrusion is fixed on the circumferential surface of the rotating disk.

[0010] Preferably, the thickness of the protruding block is smaller than the thickness of the movable block.

[0011] Preferably, the protrusion is in sliding contact with the movable block.

[0012] Preferably, the protrusion is an arc-shaped structure, and the height dimension of the protrusion is the same as the distance dimension between two adjacent extrusion holes and the distance dimension between two adjacent screen holes of the screen body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting a cleaning component, when in use, first, start the sand screening machine body, so that the support frame and the screen body are moved through the reciprocating mechanism on the machine body, and then, place sand and stones on the screen body for sand screening. When it is necessary to clean the sand and stones blocked on the screen holes of the screen body, the movable block is made to slide in the movable groove through the driving component, and the movable plate is made to slide in the movable groove through the transmission rod, so that the spring is forced to shrink, and the extrusion holes squeeze the sand and stones blocked on the screen holes of the screen body, so that the blocked sand and stones can be squeezed out by the extrusion holes until the screen holes of the screen body are staggered with the extrusion holes. At this time, the spring is no longer stressed and begins to stretch, so that the movable block drives the movable plate to slide in the opposite direction in the movable groove through the transmission rod until the spring returns to its original shape. Compared with the prior art, the utility model can clean each screen hole on the screen body, and the cleaning effect is good.

[0015] 2. By setting a driving motor, a rotating disk and a convex block, and starting the driving motor, the output shaft of the driving motor rotates, the rotating disk drives the convex block to rotate, and the convex block squeezes the movable block, so that the extrusion hole can slowly squeeze out the sand and stone on the sieve holes of the sieve body, thereby improving the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the screen body structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure disassembly of the utility model;

[0020] Figure 5 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0021] In the figure:

[0022] 1. Sand screening machine body; 2. Cleaning components; 3. Driving components;

[0023] 101. machine body; 102. support frame; 103. screen body;

[0024] 201, movable slot; 202, opening slot; 203, movable plate; 204, extrusion hole; 205, fixed plate; 206, movable block; 207, transmission rod; 208, spring;

[0025] 301, driving motor; 302, rotating disk; 303, bump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 5 The utility model provides a technical solution: a sand screening machine for construction engineering, comprising a sand screening machine body 1, a cleaning assembly 2 and a driving assembly 3; the sand screening machine body 1 comprises a machine body 101, a support frame 102 and a screen body 103; the support frame 102 is connected to the machine body 101 through a reciprocating mechanism; the screen body 103 is fixedly arranged on the support frame 102, and one end of the screen body 103 passes through the support frame 102 and extends to the outside; the cleaning assembly 2 is arranged on the screen body 103; the cleaning assembly 2 comprises a movable groove 201, an open groove 202, a movable plate 203, an extrusion hole 204, a fixed plate 205, a movable block 206, a transmission rod 207 and a spring 208; a movable groove 201 is provided in the screen body 103; an open groove 202 is provided in the movable groove 201; the movable plate 203 is slidably arranged in the movable groove 201 204; a plurality of extrusion holes 204 are evenly provided on the movable plate 203; the center of the circle of the mesh hole of the screen body 103 and the center of the extrusion hole 204 are on the same straight line; the fixed plate 205 is fixed in the movable groove 201; the movable block 206 is slidably arranged in the movable groove 201, and the end of the movable block 206 extends to the outside through the movable groove 201 and the opening groove 202; the movable block 206 is in a T-shaped structure, and the size of the movable block 206 on the side close to the transmission rod 207 is larger than the size of the movable block 206 on the side away from the transmission rod 207; five transmission rods 207 are arranged in a linear array on the fixed plate 205, and the two ends of the transmission rod 207 are fixedly connected to the movable plate 203 and the movable block 206 respectively; the spring 208 is sleeved on the transmission rod 207, and the two ends of the spring 208 are fixedly connected to the fixed plate 205 and the movable block 206 respectively.

[0028] The utility model is provided with a cleaning component 2. When in use, first, the sand screening machine body 1 is started, so that the support frame 102 and the screen body 103 are moved through the reciprocating mechanism on the machine body 101, and then, sand and stones are placed on the screen body 103 for sand screening. When it is necessary to clean the sand and stones blocked on the screen mesh of the screen body 103, the movable block 206 is slid in the movable groove 201 through the driving component 3, and the movable plate 203 is slid in the movable groove 201 through the transmission rod 207, so that the spring 208 is forced to shrink, so that the squeeze The pressing hole 204 squeezes the sand and stones that are blocked on the screen holes of the screen body 103, so that the blocked sand and stones can be squeezed out by the squeezing hole 204 until the screen holes of the screen body 103 are staggered with the squeezing hole 204. At this time, the spring 208 is no longer stressed and begins to stretch, so that the movable block 206 drives the movable plate 203 to slide in the opposite direction in the movable groove 201 through the transmission rod 207 until the spring 208 returns to its original shape. Compared with the prior art, the utility model can clean each screen hole on the screen body 103, and the cleaning effect is good.

[0029] As a preferred embodiment, the driving assembly 3 includes a driving motor 301, a rotating disk 302 and a protrusion 303; the driving motor 301 is fixed to one side of the body 101 through a motor seat; the rotating disk 302 is sleeved on the output shaft of the driving motor 301; the protrusion 303 is fixed on the circumferential surface of the rotating disk 302; the thickness of the protrusion 303 is smaller than the thickness of the movable block 206, and the protrusion 303 is in sliding contact with the movable block 206; the protrusion 303 is an arc-shaped structure, and the protruding height of the protrusion 303 is the same as the distance between two adjacent extrusion holes 204 and the distance between two adjacent screen holes of the screen body 103; during the reciprocating movement of the support frame 102 and the screen body 103, the arc surface of the protrusion 303 is always in contact with the movable block 206; when the high end of the protrusion 303 is in contact with the movable block 206, the screen holes of the screen body 103 are staggered with the extrusion holes 204.

[0030] The utility model is provided with a driving motor 301, a rotating disk 302 and a protrusion 303. By starting the driving motor 301, the output shaft of the driving motor 301 is rotated, and the rotating disk 302 drives the protrusion 303 to rotate, so that the protrusion 303 squeezes the movable block 206, so that the extrusion hole 204 can slowly squeeze out the sand and stone on the screen holes of the screen body 103, thereby improving the practicality of the utility model.

[0031] Working principle: When in use, first, start the sand screening machine body 1, so that the support frame 102 and the screen body 103 move through the reciprocating mechanism on the machine body 101, then place sand and stones on the screen body 103 for sand screening, and when it is necessary to clean the sand and stones blocking the screen holes of the screen body 103, start the drive motor 301, so that the output shaft of the drive motor 301 rotates, so that the rotating disk 302 drives the protrusion 303 to rotate, so that the protrusion 303 squeezes the movable block 206, so that the movable block 206 drives the movable plate 203 in the movable groove 201 through the transmission rod 207 The spring 208 is forced to contract and the extrusion hole 204 squeezes the sand and gravel that are blocked on the mesh holes of the screen body 103, so that the blocked sand and gravel can be squeezed out by the extrusion hole 204 until the high end of the protrusion 303 contacts the movable block 206. At this time, the mesh holes of the screen body 103 are staggered with the extrusion hole 204. Then, the spring 208 is no longer stressed and begins to stretch, so that the movable block 206 drives the movable plate 203 to slide in the opposite direction in the movable groove 201 through the transmission rod 207 until the circumferential surface of the rotating disk 302 contacts the movable block 206. At this time, the spring 208 returns to its original shape.

[0032] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand screening machine for construction engineering, characterized in that: The invention comprises a sand screening machine body (1), a cleaning component (2) and a driving component (3); the sand screening machine body (1) comprises a machine body (101), a support frame (102) and a screen body (103); the support frame (102) is connected to the machine body (101) through a reciprocating mechanism; the screen body (103) is fixedly mounted on the support frame (102), and one end of the screen body (103) passes through the support frame (102) and extends to the outside; the cleaning component (2) is arranged on the screen body (103); the cleaning component (2) comprises a movable groove (201), an opening groove (202), a movable plate (203), an extrusion hole (204), a fixed plate (205), a movable block (206), a transmission rod (207) and a spring (208); a movable groove (201) is provided in the screen body (103); the movable groove (201) is provided in the movable plate (20 1) is provided with an open groove (202); the movable plate (203) is slidably arranged in the movable groove (201); a plurality of extrusion holes (204) are evenly arranged on the movable plate (203); the fixed plate (205) is fixedly arranged in the movable groove (201); the movable block (206) is slidably arranged in the movable groove (201), and the end of the movable block (206) passes through the movable groove (201) and the open groove (202) to extend to the outside; at least one transmission rod (207) is passed through the fixed plate (205), and the two ends of the transmission rod (207) are respectively fixedly connected to the movable plate (203) and the movable block (206); the spring (208) is sleeved on the transmission rod (207), and the two ends of the spring (208) are respectively fixedly connected to the fixed plate (205) and the movable block (206).

2. A sand screening machine for construction engineering according to claim 1, characterized in that: The center of the mesh hole of the mesh body (103) and the center of the extrusion hole (204) are on the same straight line.

3. A sand screening machine for construction engineering according to claim 1, characterized in that: The movable block (206) has a T-shaped structure, and the size of the movable block (206) on the side close to the transmission rod (207) is larger than the size of the movable block (206) on the side away from the transmission rod (207).

4. A sand screening machine for construction engineering according to claim 3, characterized in that: The driving assembly (3) comprises a driving motor (301), a rotating disk (302) and a convex block (303); the driving motor (301) is fixedly mounted on one side of the machine body (101) via a motor seat; the rotating disk (302) is sleeved on an output shaft of the driving motor (301); and the convex block (303) is fixedly mounted on a circumferential surface of the rotating disk (302).

5. A sand screening machine for construction engineering according to claim 4, characterized in that: The thickness of the convex block (303) is smaller than the thickness of the movable block (206).

6. A sand screening machine for construction engineering according to claim 5, characterized in that: The convex block (303) is in sliding contact with the movable block (206).

7. A sand screening machine for construction engineering according to claim 6, characterized in that: The protrusion (303) is an arc-shaped structure, and the protrusion height dimension of the protrusion (303) is the same as the distance dimension between two adjacent extrusion holes (204) and the distance dimension between two adjacent screen holes of the screen body (103).

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