CN218078983U - Screening sand device for construction - Google Patents

Abstract

The utility model provides a sand screening device for building construction, which comprises a screening box (10), wherein a screening component is arranged in the screening box (10); the screening component comprises two groups of vibration connecting mechanisms (21), a U-shaped screening net (22) and two U-shaped baffles (23), and a sand receiving groove (30) is arranged in a screening box (10) on the lower side of the U-shaped screening net (22). The sand screening device can effectively avoid the problems that a large amount of dust is scattered in the air, the environment is polluted and the body of a person is damaged; simultaneously, this screening sand device can provide the vibration of equidirectional not, utilize multi-direction vibration to realize the screening of sand to effectively avoid the accumulational problem of sand.

Description

Screening sand device for construction

Technical Field

The utility model relates to a screening sand technical field, concretely relates to screening sand device for construction.

Background

In the building construction process, the sand screening machine is usually needed to screen sand, so that large-particle impurities contained in the sand are screened out, and the uniformity of the sand is ensured.

Chinese patent document CN212238077U discloses a sand filtering device for civil engineering, wherein when in use, sand falls on a sand screening net, and through the filtering effect of the sand screening net, the sand falls on the ground through the sand screening net, and impurities are filtered out by the sand screening net; simultaneously, it is downthehole through the screw thread of second fastening bolt screw in different positions, realizes the change of screening sand net angle to be suitable for different situation, when debris are less in the sand grain, use great inclination, reach the purpose of quick screening sand, after the screening sand is ended, through the upset frame, can make screening sand net invert, make the debris of crossing to filter out be convenient for clear up. However, when the sand filtering device filters sand, namely when the sand falls on the sand screen, a large amount of dust is easily generated, and the sand filtering device pollutes the environment and is easy to cause physical damage to operators; meanwhile, the sand filtering device generally realizes screening of sundries through the force of sand grains falling on a sand screen in a manual sand throwing mode, the labor intensity and the labor cost are increased, the sand screening efficiency is reduced, and after the sand filtering device is used for a long time, the sand grains and large-particle sundries are easily accumulated on the sand screen and the screening effect is poor.

SUMMERY OF THE UTILITY MODEL

In view of the problems existing in the prior art, the utility model aims to provide a sand screening device for building construction, which can effectively avoid the problems that a large amount of dust is scattered in the air, the environment is polluted and the body of people is damaged; simultaneously, this screening sand device can provide the vibration of equidirectional not, utilize multi-direction vibration to realize the screening of sand to effectively avoid the accumulational problem of sand.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a screening sand device for construction which characterized in that: the screening device comprises a screening box, wherein screening components are arranged in the screening box; the screening component comprises two groups of vibration connecting mechanisms, a U-shaped screening net and two U-shaped baffles, the end parts of the two ends of the U-shaped screening net are respectively and fixedly connected with the two groups of vibration connecting mechanisms which are arranged in parallel, the two U-shaped baffles are respectively arranged on the front side and the rear side of the U-shaped screening net, the outer wall of the U-shaped baffle is fixedly connected with the inner wall of the U-shaped screening net, and the U-shaped baffle is fixedly connected with the outer wall of the vibration connecting mechanism; a sand receiving groove is arranged in the screening box at the lower side of the U-shaped screening net.

Preferably, a funnel-shaped feeding pipe is arranged in the middle of the top surface of the screening box, a first guide pipe is arranged on the top surface of the inner wall of the screening box and positioned on the outer ring of the feeding pipe, and the first guide pipe is positioned on the upper side of the screening assembly; and a second guide pipe is arranged on the inner wall of the screening box at the lower side of the screening component.

Preferably, the vibration connecting mechanism comprises a first sliding block, a second sliding block, a first spring, a sliding rod, a sliding sleeve and a second spring; the side surfaces of the screening box at the front end and the rear end of the U-shaped screening net are respectively provided with a vertical chute corresponding to the vibration connecting mechanism, the vertical chutes at the two ends are respectively connected with a first sliding block and a second sliding block in a sliding manner, the top surfaces of the first sliding block and the second sliding block are respectively connected with the top surfaces of the corresponding vertical chutes through a plurality of first springs, and the lower sides of the first sliding block and the second sliding block are respectively provided with a cam mechanism; a sliding rod is arranged between the first sliding block and the corresponding second sliding block, the outer wall of the sliding rod is connected with a sliding sleeve in a sliding manner, and the U-shaped screening net and the U-shaped baffle are fixedly connected with the outer wall of the sliding sleeve; a second spring is arranged between the sliding sleeve and the second sliding block, the second spring is sleeved on the outer wall of the sliding rod, the first sliding block is provided with a horizontal sliding groove corresponding to the sliding sleeve, the sliding sleeve is provided with a rack corresponding to the horizontal sliding groove, and a driving mechanism is arranged in the first sliding block corresponding to the rack.

Preferably, the side wall of the screening box is provided with a cam groove corresponding to the vertical sliding groove, the cam groove is positioned at the lower side of the vertical sliding groove and communicated with the vertical sliding groove, and the width of the cam groove is smaller than that of the vertical sliding groove; the cam mechanism is arranged in the cam groove and comprises a rotating rod and a cam disc, and the cam disc is sleeved on the outer wall of the rotating rod and corresponds to the first sliding block or the second sliding block.

Preferably, a rubber strip is arranged between the cam groove and the vertical sliding groove, so that the descending of the first sliding block and the second sliding block is buffered; the first slider is close to one side of second slider and is located horizontal spout outer lane and sets up the rubber circle to the slip striking of sliding sleeve forms the buffering.

Preferably, the driving mechanism comprises a motor and an incomplete gear, the motor is arranged in the first sliding block, the outer wall of an output shaft of the motor is fixedly sleeved with the incomplete gear, the incomplete gear corresponds to the rack, and a tooth section of the incomplete gear can be meshed with the rack.

The utility model discloses has following technological effect:

this application is through the setting of screening case and screening subassembly for sand grain gets into the inside screening that sieves of screening incasement portion, thereby effectively avoids the raise dust to cause the harm to surrounding environment and operating personnel in spreading the outside air. Meanwhile, the screening of sand particles entering the screening box is completed through the matching of the two groups of vibration connecting mechanisms, the U-shaped screening net and the two U-shaped baffles, the U-shaped screening net is vibrated in the upper and lower directions by utilizing the matching of the first slide block, the second slide block, the first spring, the slide rod and the cam mechanism, and the vibration in the front and rear directions is formed by utilizing the matching of the slide rod, the slide sleeve, the second spring and the driving mechanism, so that the multidirectional vibration force is formed, the sand in the U-shaped screening net is vibrated in multiple directions, and the problems of sand particle accumulation and poor screening effect after long-term use are effectively avoided; meanwhile, the screening efficiency can be improved by multi-directional vibration.

Drawings

Fig. 1 is a schematic structural view of a sand sieving device in an embodiment of the present invention.

Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

Fig. 4 is a partial sectional view taken along line C-C of fig. 3.

Wherein, 10, screening box; 11. a feeding pipe; 12. a first draft tube; 13. a second draft tube; 14. a vertical chute; 15. a cam slot; 150. a rubber strip; 151. a rotating rod; 152. a cam plate; 16. a first sealing door; 17. a second sealing door; 21. a vibration connection mechanism; 211. a first slider; 2111. a horizontal chute; 2112. a motor; 2113. an incomplete gear; 2114. a rubber ring; 212. a second slider; 213. a first spring; 214. a slide bar; 215. a sliding sleeve; 2150. a rack; 216. a second spring; 22. a U-shaped screening net; 23. a U-shaped baffle plate; 30. connect husky groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 4, a sand sieving device for building construction is characterized in that: the screening device comprises a screening box 10, wherein a screening component is arranged in the screening box 10; a funnel-shaped feeding pipe 11 is arranged in the middle of the top surface of the screening box 10 (as shown in fig. 1 and fig. 2, the feeding pipe 11 is of a funnel-shaped structure with a large upper part and a small lower part), a first guide pipe 12 is arranged on the top surface of the inner wall of the screening box 10 and positioned on the outer ring of the feeding pipe 11, and the first guide pipe 12 is positioned on the upper side of the screening assembly; the inner wall of the screening box 10 at the lower side of the screening assembly is provided with a second flow guide pipe 13.

The screening component comprises two groups of vibration connecting mechanisms 21, a U-shaped screening net 22 and two U-shaped baffles 23, the two end parts of the U-shaped screening net 22 are respectively and fixedly connected with the two groups of vibration connecting mechanisms 21 which are arranged in parallel (as shown in figure 2, the end parts of the left and right ends of the U-shaped screening net 22 are respectively connected with one vibration connecting mechanism 21), the two U-shaped baffles 23 are respectively arranged at the front and back sides of the U-shaped screening net 22 (as shown in figure 1, the left and right sides of the U-shaped screening net 22 are respectively provided with one U-shaped baffle 23), the outer wall of the U-shaped baffle 23 is fixedly connected with the inner wall of the U-shaped screening net 22, and the U-shaped baffles 23 are fixedly connected with the outer wall of the vibration connecting mechanisms 21; a sand receiving groove 30 is arranged in the screening box 10 at the lower side of the U-shaped screening net 22 (as shown in figures 1 and 2, the sand receiving groove 30 is positioned at the lower side of the second draft tube 13).

The vibration connecting mechanism 21 comprises a first slider 211, a second slider 212, a first spring 213, a sliding rod 214, a sliding sleeve 215 and a second spring 216; the side surfaces (i.e., the side surfaces at the left end and the right end shown in fig. 1) of the screening box 10 at the front end and the back end of the U-shaped screening net 22 are respectively provided with vertical sliding grooves 14 corresponding to the vibration connecting mechanism 21, and the vertical sliding grooves 14 at the two ends are respectively connected with first sliding blocks 211 and second sliding blocks 212 in a sliding manner (i.e., the number of the vertical sliding grooves 14 is four, and as shown in fig. 1, the two vertical sliding grooves 14 at the same right side are connected with the first sliding blocks 211 in a sliding manner, and the two vertical sliding grooves 14 at the same left side are connected with the second sliding blocks 212 in a sliding manner), the top surfaces of the first sliding blocks 211 and the second sliding blocks 212 are respectively connected with the top surfaces of the corresponding vertical sliding grooves 21 through a plurality of first springs 213 (as shown in fig. 1 and fig. 2, in this embodiment, one sliding block, i.e., the first sliding block 211 or the second sliding block 212 corresponds to the two first springs 213), and the lower sides of the first sliding blocks 211 and the second sliding blocks 212 are respectively provided with cam mechanisms; the side wall of the screening box 10 is respectively provided with a cam groove 15 corresponding to the vertical sliding chute 14, the cam groove 15 is positioned at the lower side of the vertical sliding chute 14 and is communicated with the vertical sliding chute 14 (as shown in fig. 1, 3 and 4), and the width of the cam groove 15 is smaller than that of the vertical sliding chute 14 (so as to form a step between the cam groove 15 and the vertical sliding chute 14, as shown in fig. 3); the cam mechanism is arranged in the cam groove 15 and comprises a rotating rod 151 and a cam disc 152, and the cam disc 152 is sleeved on the outer wall of the rotating rod 151 and corresponds to the first slider 211 or the second slider 212 (namely, the number of the cam discs 152 is four, and a cam disc 152 is correspondingly arranged on the lower sides of the first slider 211 and the second slider 212). A sliding rod 214 is arranged between the first sliding block 211 and the corresponding second sliding block 212, the outer wall of the sliding rod 214 is slidably connected with a sliding sleeve 215 (namely, the sliding rods 214 are two and the sliding sleeve 215 is two), and the U-shaped screening net 22 and the U-shaped baffle 23 are both fixedly connected with the outer wall of the sliding sleeve 215; a second spring 216 is arranged between the sliding sleeve 215 and the second sliding block 212, the second spring 216 is sleeved on the outer wall of the sliding rod 214 (as shown in fig. 1), the first sliding block 211 is provided with a horizontal sliding groove 2111 corresponding to the sliding sleeve 215, the sliding sleeve 215 is provided with a rack 2150 corresponding to the horizontal sliding groove 2111 (the rack 2150 is slidably connected with the horizontal sliding groove 2111), and a driving mechanism is arranged in the first sliding block 211 corresponding to the rack 2150. The driving mechanism comprises a motor 2112 and an incomplete gear 2113, the motor 2112 is arranged in the first sliding block 211, the outer wall of an output shaft of the motor 2112 is fixedly sleeved with the incomplete gear 2113, the incomplete gear 2113 corresponds to the rack 2150, and a tooth section of the incomplete gear 2113 can be meshed with the rack 2150 (as shown in fig. 4).

A rubber strip 150 (shown in fig. 3) is provided between the cam groove 15 and the vertical slide groove 14 (i.e., the step surfaces of the cam groove 15 and the vertical slide groove 14), so as to buffer the descent of the first slider 211 and the second slider 212; the first sliding block 211 is provided with a rubber ring 2114 at the outer ring of the horizontal sliding groove 2111 near the side surface of the second sliding block 212, so as to buffer the sliding impact of the sliding sleeve 215 (as shown in fig. 3).

Example 2:

as a further optimization of the scheme of the present application, on the basis of embodiment 1, a double-head motor is respectively disposed on the side wall of the screening box 10 between the two first sliders 211 and the side wall of the screening box 10 between the two second sliders 212, and the output ends of the double-head motors are respectively fixedly connected to the rotating rods 151 on the lower sides of the corresponding first sliders 211 or the corresponding second sliders 212; and the two double-headed motors and the motor 2112 are both arranged on the same current circuit (namely, the two double-headed motors and the motor 2112 are started and stopped simultaneously).

The working principle is as follows:

when the sand screening machine is used, building sand is poured into the feeding pipe 11 through mechanical equipment or artificially, and the sand enters the U-shaped screening net 22 through the first flow guide pipe 12. Then a double-head motor and a motor 2112 are started, the double-head motor drives the cam disc 152 to rotate through a rotating rod 151 respectively, the cam disc 152 abuts against the first sliding block 211 or the second sliding block 212 to move upwards in the vertical chute 14, the first spring 213 is compressed, the cam disc 152 is separated from the first sliding block 211 or the second sliding block 212 along with the continuous rotation of the cam disc 152, the first sliding block 211 or the second sliding block 212 moves downwards due to the action of gravity and the elastic force of the first spring 213 and is limited by the step between the vertical chute 14 and the cam groove 15, so that vibration is generated, and longitudinal vibration force is formed on sand in the U-shaped screening net 22; the motor 2112 drives the incomplete gear 2113 to rotate, when the tooth section of the incomplete gear 2113 is meshed with the rack 2150, the motor 2112 rotates to drive the rack 2150 and the sliding sleeve 215 to slide to the left side (namely, the side close to the second slider 212) as shown in fig. 1, the second spring 216 is compressed, along with the continuous rotation of the incomplete gear 2113, the smooth section of the incomplete gear 2113 is contacted with the rack 2150, the rack 2150 loses the supporting force and slides to the right side (namely, the side close to the first slider 211) as shown in fig. 1 due to the elastic force of the second spring 216, and then the rubber ring 2114 is impacted to form a transverse vibration force; the transverse vibration force and the longitudinal vibration force act simultaneously to form irregular vibration, so that the screening of sand in the U-shaped screening net 22 is completed, the problems of mesh blockage, sand accumulation and the like caused by repeated vibration in the same direction are avoided, and the screening efficiency is effectively improved.

Example 3:

as a further optimization of the solution of the present application, on the basis of embodiment 1, a first sealing door 16 (shown in fig. 1) is disposed on the side wall of the screening box 10 and corresponding to the sand receiving slot 30, a second sealing door 17 (shown in fig. 2) is disposed on the side wall of the screening box 10 and corresponding to the screening assemblies, and the second sealing door 17 is different from the side surfaces of the first slider 211 and the second slider 212.

For easy movement, the underside of the screening box 10 may be provided with a running gear for easy driving.

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

Claims (6)

1. The utility model provides a screening sand device for construction which characterized in that: comprises a screening box (10), wherein a screening component is arranged in the screening box (10); the screening component comprises two groups of vibration connecting mechanisms (21), a U-shaped screening net (22) and two U-shaped baffles (23), the end parts of the two ends of the U-shaped screening net (22) are respectively and fixedly connected with the two groups of vibration connecting mechanisms (21) which are arranged in parallel, the two U-shaped baffles (23) are respectively arranged at the front side and the rear side of the U-shaped screening net (22), the outer wall of the U-shaped baffle (23) is fixedly connected with the inner wall of the U-shaped screening net (22), and the U-shaped baffle (23) is fixedly connected with the outer wall of the vibration connecting mechanism (21); a sand receiving groove (30) is arranged in the screening box (10) at the lower side of the U-shaped screening net (22).

2. The sand screening device for building construction according to claim 1, wherein: a funnel-shaped feeding pipe (11) is arranged in the middle of the top surface of the screening box (10), a first guide pipe (12) is arranged on the top surface of the inner wall of the screening box (10) and positioned on the outer ring of the feeding pipe (11), and the first guide pipe (12) is positioned on the upper side of the screening component; and a second guide pipe (13) is arranged on the inner wall of the screening box (10) at the lower side of the screening component.

3. The sand screening device for construction according to claim 1, wherein: the vibration connecting mechanism (21) comprises a first sliding block (211), a second sliding block (212), a first spring (213), a sliding rod (214), a sliding sleeve (215) and a second spring (216); the side surfaces of the screening box (10) at the front end and the rear end of the U-shaped screening net (22) are respectively provided with a vertical chute (14) corresponding to the vibration connecting mechanism (21), the vertical chutes (14) at the two ends are respectively connected with a first sliding block (211) and a second sliding block (212) in the vertical chutes (14) at the two ends in a sliding manner, the top surfaces of the first sliding block (211) and the second sliding block (212) are respectively connected with the top surfaces of the corresponding vertical chutes (14) through a plurality of first springs (213), and the lower sides of the first sliding block (211) and the second sliding block (212) are respectively provided with a cam mechanism; a sliding rod (214) is arranged between the first sliding block (211) and the corresponding second sliding block (212), the outer wall of the sliding rod (214) is connected with a sliding sleeve (215) in a sliding manner, and the U-shaped screening net (22) and the U-shaped baffle (23) are fixedly connected with the outer wall of the sliding sleeve (215); a second spring (216) is arranged between the sliding sleeve (215) and the second sliding block (212), the second spring (216) is sleeved on the outer wall of the sliding rod (214), the first sliding block (211) is provided with a horizontal sliding groove (2111) corresponding to the sliding sleeve (215), the sliding sleeve (215) is provided with a rack (2150) corresponding to the horizontal sliding groove (2111), and a driving mechanism is arranged in the first sliding block (211) corresponding to the rack (2150).

4. The sand screening device for building construction according to claim 3, wherein: the side wall of the screening box (10) is provided with a cam groove (15) corresponding to the vertical sliding groove (14), the cam groove (15) is positioned at the lower side of the vertical sliding groove (14) and is communicated with the vertical sliding groove (14), and the width of the cam groove (15) is smaller than that of the vertical sliding groove (14); the cam mechanism is arranged in the cam groove (15) and comprises a rotating rod (151) and a cam disc (152), and the cam disc (152) is sleeved on the outer wall of the rotating rod (151).

5. The sand screening device for building construction according to claim 4, wherein: a rubber strip (150) is arranged between the cam groove (15) and the vertical sliding groove (14); the first sliding block (211) is close to one side face of the second sliding block (212) and is provided with a rubber ring (2114) on the outer ring of the horizontal sliding groove (2111).

6. The sand screening device for construction according to claim 4, wherein: the driving mechanism comprises a motor (2112) and an incomplete gear (2113), the motor (2112) is arranged in the first sliding block (211), the outer wall of an output shaft of the motor (2112) is fixedly sleeved with the incomplete gear (2113), and the incomplete gear (2113) corresponds to the rack (2150).

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