Sand screening device for building construction

Abstract

The utility model belongs to the technical field of building construction equipment, and discloses a sand screening device for building construction, which comprises a sand screening box, mounting boxes are respectively and fixedly mounted on the front surface and the back surface of the sand screening box, vibrating sand screening mechanisms are respectively arranged in the two mounting boxes, and the vibrating sand screening mechanism on the front surface is taken as an example. The vibrating sand screening mechanism comprises a hydraulic cylinder and a motor which are fixedly installed on the inner wall of the bottom of the installation box, through the design of different hole diameters of three screens, classified screening of mixed gravel is achieved, gravel with different granularities can be effectively separated on the screens, meanwhile, the screens can incline and be aligned with the discharging channel, and the screening efficiency is improved. Through the arrangement of the rectangular grooves, screened gravel can smoothly enter the corresponding discharging channels through the rectangular grooves, split-flow collection is achieved, the precision and efficiency of sand screening are improved, the requirements for gravel of different granularities in building construction are met, and the problems of blocking and stacking of the screened gravel are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction equipment, and specifically relates to a sand screening device for building construction. BACKGROUND

[0002] In the field of building construction, the sand screening device is one of the indispensable equipment, however, the sand used in the construction site often contains impurities such as stones and soil, and these impurities will have adverse effects on building construction, so it is necessary to screen the sand to improve the quality and purity of the sand.

[0003] The existing sand screening device still has some problems to be solved, first, some devices may have only one screen or an unreasonable screen aperture design, which cannot realize effective grading and screening of mixed gravel, so that the particle size range of the screened gravel is large, which cannot meet the accurate demand for different particle size gravel in building construction, second, the existing device may have only one discharge port, which cannot collect the screened gravel according to the particle size, so that the screened gravel needs to be manually classified again, which increases the time cost, in addition, due to the lack of grading and screening and shunt collection functions, the existing device is prone to gravel blocking the screen in the screening process, which reduces the screening efficiency, at the same time, the particle size of the screened gravel is uneven, which may need to be screened several times to meet the required particle size requirement, which further reduces the screening efficiency, therefore, it is necessary to improve and optimize it. TECHNICAL PROBLEM

[0004] To solve the problems in the background art, the utility model provides a sand screening device for building construction, which solves the problems of difficult grading and screening and shunt collection of the existing device.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a sand screening device for building construction, including sand screening box, the front and back of sand screening box are fixedly installed with installation box respectively, the inside of two installation boxes is provided with vibration sand screening mechanism respectively, taking the vibration sand screening mechanism of front as an example, the vibration sand screening mechanism includes hydraulic cylinder and motor fixedly installed on the inner wall of installation box bottom, the output shaft of hydraulic cylinder is fixedly installed with horizontal plate, the output shaft of motor is fixedly sleeved with bevel gear no.

[0006] Preferably, the outer wall of the front of the sand screening box is provided with two movable grooves, and the two round rods penetrate through the corresponding movable grooves and are in sliding connection with the corresponding movable grooves.

[0007] Preferably, the top of the sand screening box is provided with a feeding channel, and the top of the sand screening box is provided with a discharging channel one.

[0008] Preferably, the filter hole diameters of the three screen meshes are different, and the filter hole diameters decrease from top to bottom.

[0009] Preferably, one side of the sand screening box is provided with three discharging channels two, and the front and back of the three discharging channels two are fixedly installed with supports.

[0010] Preferably, the side of the sand screening box close to the discharging channel two is provided with three rectangular grooves, and the three rectangular grooves are connected with the corresponding discharging channels two respectively.

[0011] Preferably, the inner wall of the sand screening box is fixedly installed with three supporting plates one, the top of the three supporting plates one is in contact with the side bottom of the corresponding screen mesh respectively, the outer wall of the front of the sand screening box is fixedly installed with two supporting plates two, and the top of the two supporting plates two is in contact with the bottom of the connecting plate.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] The utility model discloses a three screen mesh's different aperture design has realized the grading screening of mixed gravel, and the gravel of different granularity can be effectively separated on respective screen mesh, simultaneously, the screen mesh can be inclined and is aligned with the discharge channel, makes the gravel after screening can smoothly enter the corresponding discharge channel through the rectangular groove, realizes the diversion collection, not only has improved the precision and efficiency of sand screening, but also has met the demand of different granularity gravel in the construction, and avoided the blockage and accumulation of gravel after screening. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the utility model side surface;

[0016] Figure 3 It is the internal structure schematic diagram of the utility model installation box;

[0017] Figure 4 It is the eccentric wheel structure schematic diagram of the utility model;

[0018] Figure 5 It is the sand screening box front face sectional structure schematic diagram of the utility model;

[0019] Figure 6 It is the sand screening box and discharge channel two front face sectional structure schematic diagram of the utility model;

[0020] Figure 7 It is the local structure schematic diagram of the utility model installation box.

[0021] In the drawing: 1, sand screening box;101, inlet channel;102, discharge channel one;103, rectangular groove;104, support plate one;105, movable slot;106, support plate two;2, installation box;3, screen mesh;301, connecting rod;4, discharge channel two;401, support;5, hydraulic cylinder;6, cross plate;7, spring damping rod combination spare;8, motor;9, conical gear one;10, rotating rod;11, eccentric wheel;12, conical gear two;13, round bar;14, connecting plate. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.

[0023] As Figures 1 to 7As shown, this utility model provides a sand screening device for construction, including a sand screening box 1. Mounting boxes 2 are fixedly installed on the front and back of the sand screening box 1, respectively. Vibrating sand screening mechanisms are respectively installed inside the two mounting boxes 2. Taking the front vibrating sand screening mechanism as an example, the vibrating sand screening mechanism includes a hydraulic cylinder 5 and a motor 8 fixedly installed on the inner wall of the bottom of the mounting box 2. A horizontal plate 6 is fixedly installed on the output shaft of the hydraulic cylinder 5, and a bevel gear 9 is fixedly sleeved on the output shaft of the motor 8. A rotating rod 10 is rotatably installed on the outer wall of the front of the sand screening box 1. The outer wall of the rotating rod 10... An eccentric wheel 11 and a bevel gear 12 are fixedly mounted. The bevel gear 12 meshes with the bevel gear 9. Three screens 3 are hingedly installed inside the sand screening box 1. Two connecting rods 301 are fixedly mounted on the front and back of the three screens 3. Round rods 13 are fixedly mounted on the outer walls of the two connecting rods 301 on the front. The front of the two round rods 13 extends into the mounting box 2. Connecting plates 14 are fixedly mounted on the outer walls of the two round rods 13. The connecting plates 14 and the side of the cross plate 6 that are close to each other are elastically connected by several spring damping rod assemblies 7.

[0024] The motor 8 drives the rotating rod 10 and the eccentric wheel 11 on it to rotate through the bevel gear 19 and the bevel gear 212 meshing with the bevel gear 19. The rotation of the eccentric wheel 11 generates a periodic impact force, which is transmitted to the connecting plate 14 through the connecting rod 301 and the round rod 13, and then to the screen 3, causing the screen 3 to vibrate up and down in a reciprocating motion, which enhances the sand screening effect. The rotation adjustment of the screen 3 is realized through the extension and retraction of the hydraulic cylinder 5.

[0025] like Figures 1 to 7 As shown, two movable slots 105 are opened on the front outer wall of the sand screening box 1. Two round rods 13 pass through the corresponding movable slots 105 and are slidably connected to the corresponding movable slots 105. A feeding channel 101 is opened on the top of the sand screening box 1. A discharge channel 102 is opened on the top of the sand screening box 1. The filter holes of the three screens 3 are of different diameters, which decrease in size from top to bottom. Three discharge channels 4 are provided on one side of the sand screening box 1. Brackets 401 are fixedly installed on the front and back of the three discharge channels 4. Three rectangular slots 103 are opened on the side of the sand screening box 1 near the discharge channels 4. The three rectangular slots 103 are respectively connected to the corresponding discharge channels 4. Three support plates 104 are fixedly installed on the inner wall of the sand screening box 1. The tops of the three support plates 104 are respectively in contact with the bottom of one side of the corresponding screen 3. Two support plates 106 are fixedly installed on the front outer wall of the sand screening box 1. The tops of the two support plates 106 are in contact with the bottom of the connecting plate 14.

[0026] By opening the active slot 105, the two round rods 13 can be penetrated and slidably connected, ensuring that the connecting plate 14 and the screen 3 can smoothly and smoothly vibrate and tilt, and the filter hole diameter of the three screens 3 is sequentially reduced from top to bottom, realizing multi-stage screening of mixed gravel, and different particle size of gravel can be effectively separated on the respective screen 3, meeting the demand of construction for different particle size of gravel, and the side of the sand screening box 1 is provided with three discharge channels two 4, which are stably supported by the support 401, so that the screened gravel can be smoothly discharged, avoiding the problem of clogging and accumulation. The side of the sand screening box 1 close to the discharge channel two 4 is provided with three rectangular grooves 103, and the rectangular grooves 103 are connected with the corresponding discharge channels two 4 respectively. When the screen 3 is inclined and communicated with the rectangular groove 103, the screened gravel can smoothly enter the discharge channel two 4 through the rectangular groove 103, thereby realizing efficient collection and discharge of the screened gravel. By installing three supporting plates one 104, the screen 3 is stabilized. By setting two supporting plates two 106, the connecting plate 14 is effectively limited at the lowest point when moving, so that the connecting plate 14 does not affect the meshing of the bevel gear one 9 and the bevel gear two 12 and does not make the eccentric wheel 11 bear.

[0027] The working principle and use process of the utility model are as follows:

[0028] Firstly, the mixed gravel enters the inside of the sand screening box 1 through the feeding channel 101 and is screened by the three screens 3. Since the filter hole diameters of the three screens 3 are different and sequentially reduced from top to bottom, the particle size of the screened gravel is sequentially reduced from top to bottom.

[0029] Then, the motor 8 is started, the output shaft of the motor 8 rotates to drive the bevel gear one 9 to rotate, the bevel gear one 9 meshes with the bevel gear two 12 to drive the rotating rod 10 and the eccentric wheel 11 to rotate, the eccentric wheel 11 is eccentrically arranged, so that when the eccentric wheel 11 rotates, the connecting plate 14 arranged on the top of the eccentric wheel 11 can vibrate, the vibration of the connecting plate 14 is transmitted to the three screens 3 through the round rod 13 and the connecting rod 301, so that the gravel can be better screened.

[0030] Finally, the hydraulic cylinder 5 is started, the output shaft of the hydraulic cylinder 5 drives the horizontal plate 6 to move upward, so that the spring damping rod assembly 7 is compressed, and when the compression reaches the threshold value, the spring damping rod assembly 7 is no longer compressed, so that the output shaft of the hydraulic cylinder 5 drives the connecting plate 14 to move upward, the connecting plate 14 drives the three screens 3 to rotate at the hinge point through the round rod 13 and the connecting rod 301, so that the three screens 3 are respectively aligned with the corresponding rectangular grooves 103. Through the inclination of the screen 3, the screened gravel at the top of the screen 3 enters the discharge channel two 4 through the rectangular groove 103, so that the mixed gravel can be screened in different sizes at one time.

[0031] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for use in construction, comprising a sand screening tank (1), characterized in that: The front and back of the sand screening box (1) are respectively fixedly installed with installation boxes (2), the interiors of the two installation boxes (2) are respectively provided with vibrating sand screening mechanisms, and the vibrating sand screening mechanism on the front side is taken as an example, the vibrating sand screening mechanism comprises a hydraulic cylinder (5) and a motor (8) which are fixedly installed on the inner wall of the bottom of the installation box (2), a horizontal plate (6) is fixedly installed on the output shaft of the hydraulic cylinder (5), a conical gear one (9) is fixedly sleeved on the output shaft of the motor (8), a rotating rod (10) is rotatably installed on the outer wall of the front side of the sand screening box (1), an eccentric wheel (11) and a conical gear two (12) are fixedly sleeved on the outer wall of the rotating rod (10), the conical gear two (12) is engaged with the conical gear one (9), three screen meshes (3) are hingedly installed in the sand screening box (1), two connecting rods (301) are fixedly installed on the front side and the back of each screen mesh (3), a round rod (13) is fixedly installed on the outer wall of each connecting rod (301) on the front side, the front side of each round rod (13) extends into the installation box (2), a connecting plate (14) is fixedly sleeved on the outer wall of each round rod (13), and the connecting plate (14) is elastically connected to the side, which is close to the horizontal plate (6), through a plurality of spring damping rod combination assemblies (7).

2. A sand screening device for construction use according to claim 1, characterized in that: Two movable grooves (105) are formed in the outer wall of the front side of the sand screening box (1), and the two round rods (13) penetrate through the corresponding movable grooves (105) and are in sliding connection with the corresponding movable grooves (105).

3. A sand screening device for construction work according to claim 1, characterized in that: A feeding channel (101) is formed in the top of the sand screening box (1), and a discharging channel one (102) is formed in the top of the sand screening box (1).

4. The sand screening device for construction work as claimed in claim 1 wherein: The filter hole diameters of the three screen meshes (3) are different and sequentially decrease from top to bottom.

5. The sand screening device for construction work as claimed in claim 1 wherein: Three discharging channels two (4) are arranged on one side of the sand screening box (1), and a support (401) is fixedly installed on the front side and the back of each discharging channel two (4).

6. A sand screening device for construction use according to claim 5, wherein: Three rectangular grooves (103) are formed in the side, which is close to the discharging channel two (4), of the sand screening box (1), and each rectangular groove (103) is connected with the corresponding discharging channel two (4).

7. The sand screening device for construction work as claimed in claim 1 wherein: Three support plates one (104) are fixedly installed on the inner wall of the sand screening box (1), the top of each support plate one (104) is in contact with the bottom of one side of the corresponding screen mesh (3), and two support plates two (106) are fixedly installed on the outer wall of the front side of the sand screening box (1), and the top of each support plate two (106) is in contact with the bottom of the connecting plate (14).

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