Sand screening equipment

Abstract

Sand screening equipment relates to the technical field of constructional engineering, comprises a screening box body, and is characterized in that a containing cavity is formed from the upper surface to the interior of the screening box body, an outlet is formed in the containing cavity from the middle of the bottom to the lower surface, a screening frame is arranged above the outlet in a suspended mode, and an open structure is formed between the right side and the right side end face of the inner wall of the screening frame; an open groove is formed in the middle of the upper surface of the screening frame, springs are arranged along the edges of the four corners of the lower surface of the screening frame, and the rectangular screening frame is arranged, the right side face and the right side end face of the inner wall of the rectangular screening frame are designed to be open and matched with a screen plate for installation. When sand falls on the screen mesh plate, normal sand can penetrate through the screen mesh, and screened impurities slide to the second discharging hopper along the inclined plane by virtue of vibration of the screening frame and are smoothly discharged to the outside, so that the screening efficiency is effectively improved, meanwhile, the impurities are automatically discharged in time, the problem of retention of the impurities in the screening process is avoided, and the screening efficiency is improved. And the continuity and efficiency of sand screening operation are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering more specifically, relate to a sand screening equipment. BACKGROUND

[0002] Building engineering refers to the engineering entity formed by the construction of various housing buildings and their auxiliary facilities and the installation activities of the lines, pipelines and equipment matched therewith. "Housing building" refers to the engineering that has a roof, beam column, wall, foundation and can form an internal space to meet the needs of people's production, residence, study and public activities.

[0003] Chinese patent application number: CN202421938480.1 discloses a sand screening device, which comprises a base, a screening box, a sieve frame and a sieve screen. A mounting groove is formed in the sieve frame, and a plug is installed in the mounting groove. The plug is connected with a connecting seat, and a second spring is installed in the connecting seat. The second spring is connected with a sliding block, and the sliding block is connected with a clamping block. A clamping groove is formed in the mounting groove, and a sliding groove is formed on the upper surface of the connecting seat. A pull rod is installed in the sliding groove and is fixedly connected with the sliding block. The sieve screen is clamped and matched with the sieve frame. The utility model discloses a sieve screen and a sieve frame clamped and matched. When it is necessary to replace the sieve screen according to the sand screening requirements, the pull rod is pulled, the pull rod drives the clamping block to move away from the clamping groove, the pull rod is pulled upward, the pull rod drives the plug to move upward, the sieve screen can be disassembled after the plug is pulled out of the mounting groove, the sieve screen can be quickly disassembled, and different sand screening requirements can be met.

[0004] The above scheme can realize quick replacement of the sieve screen in actual use, but at least the following problems have not been solved: for example, the sieve frame of the scheme is in a closed frame structure, and the sieve screen is installed in the sieve frame; when the device is performing sand screening operation, impurities in the sand can be retained in the sieve frame and cannot be automatically discharged, and can only be processed when the user manually cleans or replaces the sieve screen, which is inconvenient in actual use.

[0005] Secondly, the sliding block and the clamping groove structure of the scheme are provided with two groups, so that when the sieve screen is disassembled, it is necessary to accurately control the synchronous movement of the two groups of sliding blocks to disassemble the sieve screen, that is, the two groups of sliding blocks must be simultaneously pushed out of the clamping groove before the sieve screen is taken down, which causes certain inconvenience in actual operation.

[0006] Therefore, in view of the above technical defects, it is necessary to propose a sand screening device. UTILITY MODEL CONTENTS

[0007] The utility model aims at the above technical defects, and proposes a sand screening device. The device can continuously discharge the screened impurities during use, and can quickly take down and replace the sieve screen from the sieve frame when disassembling the sieve screen.

[0008] The utility model provides a kind of sand screening equipment, the upper surface of screening box main part is formed with containing cavity to inside, and containing cavity is provided with outlet from the middle of bottom to lower surface, the upper side of outlet is suspended and is provided with screening frame, screening frame is rectangular frame body, and it is open structure between right side and right side end surface of inner wall, the middle of the upper surface of screening frame is provided with slot, and the lower surface of screening frame is also communicated in slot, spring is uniformly arranged along the four corner edge of lower surface of screening frame, and the lower end of spring is connected with the inner wall bottom end surface of containing cavity, the inner wall bottom end surface of screening frame is detachably installed with screen plate, and L-shaped baffle is arranged at the inner wall right side front end and rear end of screening frame, in use, the L end of baffle can be contacted with the upper surface of screen plate, the middle of the bottom of screening frame is provided with driving assembly, in use, driving assembly can make screening frame vibrate.

[0009] Preferably: the lower side of screening frame is inclined and fixedly provided with first discharge hopper along the inner wall surface of outlet, wherein the lower end of the first discharge hopper extends to the outside of the screening box main body after passing through the outlet, at the same time, a second discharge hopper is inclinedly arranged at the right side of the bottom of the screening frame, and the lower end of the second discharge hopper penetrates and extends to the outside of the screening box main body.

[0010] Preferably: the internal area of the first discharge hopper and the second discharge hopper is larger than the area of the screening frame, and the top end of the second discharge hopper is in an open structure.

[0011] Preferably: the driving assembly comprises a bracket, a support plate arranged on the inner end surface of the bracket, and a motor installed upside down along the upper surface of the support plate, the bracket is provided with two, an eccentric block is arranged at the transmission shaft of the motor, a protective cover is fixedly arranged on the upper surface of the support plate, and a space is left between the protective cover and the eccentric block.

[0012] Preferably: a sliding plate of rectangular structure is slidingly arranged on the top front side and the top rear side of the screening box main body, a cover plate of concave structure is slidingly arranged above the screening box main body, and the inner side end of the cover plate is slidingly connected with the outer end surface of the sliding plate.

[0013] Preferably: a guide hopper is arranged at the top left side of the cover plate, the guide hopper is formed with a hollow structure, an inlet for feeding is arranged at the top right side of the guide hopper, a protruding end is formed on the inner wall top end at the left side of the inlet, a baffle is rotatably arranged on the inner wall surface of the guide hopper at the left side of the protruding end, a space is left between the lower end of the baffle and the inner wall bottom end surface of the guide hopper, a discharge port is arranged at the inner wall bottom end of the guide hopper, and the discharge port is communicated with the lower surface of the cover plate.

[0014] Preferably, the first sliding groove is arranged on the end of the screening box body facing the sliding plate in a straight line direction, the first supporting rod is fixedly arranged on the end of the sliding plate facing the first sliding groove in a right side direction, the number of the first supporting rod is at least two, the first supporting rod extends into the first sliding groove at one end, and the extending end of the first supporting rod is provided with the first roller.

[0015] The second sliding groove is arranged on the end of the sliding plate facing the cover plate in a straight line direction, the second supporting rod is fixedly arranged on the end of the cover plate facing the second sliding groove in a right side direction, the number of the second supporting rod is at least two, the second supporting rod extends into the second sliding groove at one end, and the extending end of the second supporting rod is provided with the second roller.

[0016] Preferably, the screening frame and the screen plate are detachably connected through the limiting piece, the limiting piece comprises a fixing screw and a hole, the hole is arranged on the screening frame and the screen plate, and the fixing screw is threadedly connected with the hole.

[0017] The screening device has the advantages that:

[0018] 1. The rectangular screening frame is adopted in the screening device, the right side surface and the right end surface of the inner wall of the screening frame are designed in an open type, and the screen plate is installed in cooperation, when sand falls on the screen plate, normal sand can pass through the screen, and the screened sundries slide along the inclined surface to the second discharge hopper and are smoothly discharged to the outside by means of the vibration of the screening frame, the screening efficiency is effectively improved, the sundries are automatically discharged in time, the sundries are prevented from being retained in the screening process, and the continuity and efficiency of sand screening operation are greatly improved.

[0019] 2. The baffle is arranged at the screening frame, the other end of the screen plate is threadedly fixed through the fixing screw and the hole, the one end of the screen plate is arranged below the baffle during installation, the other end is fixed through the screwed fixing screw, when disassembly is needed, the screen plate can be conveniently taken out from the screening frame by loosening the fixing screw on one side, the design makes the disassembly and assembly of the screen plate simple and fast, complex steps are not needed, the replacement and maintenance of the screen plate by the user are greatly facilitated, and the practicability and operability of the equipment are improved. DRAWINGS

[0020] Figure 1 It is a screening device structure schematic view of the utility model.

[0021] Figure 2 It is a connection schematic view of the screening box, the sliding plate and the cover plate of the utility model.

[0022] Figure 3 It is a front structure perspective view of the screening device of the utility model.

[0023] Figure 4 It is a screening frame and support structure schematic view of the utility model.

[0024] Figure 5 For Figure 4 front structure perspective view in A in FIG.

[0025] Figures 1-5 In: 1 - screening box body: 2 - screening frame; 21 - spring; 22 - support; 221 - support plate; 23 - motor; 24 - eccentric block; 25 - slot; 26 - screen plate; 27 - baffle; 3 - outlet; 31 - first discharge hopper; 32 - second discharge hopper; 4 - slide plate; 41 - first sliding groove; 42 - first support rod; 43 - first roller; 5 - cover plate; 51 - second sliding groove; 52 - second support rod; 53 - second roller; 54 - guide hopper; 55 - inlet; 56 - protruding end; 57 - baffle; 58 - discharge port; 6 - limiting piece; 61 - fixing screw; 62 - hole. DETAILED DESCRIPTION

[0026] The technical solutions of the utility model will be described clearly and completely below in combination with the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] As shown in the accompanying Figure 1 to the accompanying Figure 5 : a sand screening equipment, including screening box body 1, it is characterized in that, the upper surface of screening box body 1 to the inside is formed with containing cavity, the containing cavity is opened with 1 outlet 3 from the bottom middle to the lower surface, and a group of screening assemblies are suspended above the outlet 3, the spring 21 is arranged along the lower surface four corner edge of the screening assembly, and the lower end of the spring 21 is connected with the inner wall bottom end face of the containing cavity. Meanwhile, a first discharge hopper 31 is obliquely and fixedly arranged along the inner wall face of the outlet 3 below the screening assembly, the lower end of the first discharge hopper 31 extends to the outside of the screening box body 1 after passing through the outlet 3, then, a second discharge hopper 32 is obliquely arranged at the bottom right side of the screening assembly, and the lower end of the second discharge hopper 32 penetrates and extends to the outside of the screening box body 1.

[0028] In use, sand can be put into the screening assembly for screening, after screening, large particle sand slides to the second discharge hopper 32 through the inclined end of the screening assembly, and small particle sand falls to the first discharge hopper 31 and is discharged.

[0029] Further, the internal area of the first discharge hopper 31 and the second discharge hopper 32 is larger than the area of the screening assembly. This design allows the sand to accurately fall into the first discharge hopper 31 and the second discharge hopper 32 after the screening assembly completes the screening of the sand. At the same time, the top end of the second discharge hopper 32 is designed in an open manner. This design allows the large-grained sand to fall into the second discharge hopper 32 from the right side of the screening frame 2 after screening.

[0030] As shown in Figure 3 and Figure 4 , the screening assembly includes a screening frame 2, a slot 25, a screen plate 26, and a baffle 27. The screening frame 2 is a rectangular frame body, the right side surface between the inner wall and the right end surface is designed in an open manner, the slot 25 is formed in the middle of the upper surface of the screening frame 2, and the slot 25 is also in communication with the lower surface of the screening frame 2. The screen plate 26 is detachably installed at the bottom end of the inner wall of the screening frame 2. The baffle 27 is an L-shaped plate body, and is fixedly arranged at the front end and the rear end of the right side of the inner wall of the screening frame 2. In use, the L-shaped end of the baffle 27 can clamp the upper surface of the screen plate 26. This design facilitates the subsequent disassembly and replacement of the screen plate 26.

[0031] At the same time, two supports 22 are arranged at the bottom of the screening frame 2. The inner end surface of the support 22 is fixedly provided with a support plate 221. Then, a protective cover is fixedly arranged on the upper surface of the support plate 221. An eccentric block 24 is installed on the upper surface of the support plate 221 in the protective cover. The eccentric block 24 is spaced apart from the protective cover. This design allows the eccentric block 24 to rotate under the drive of the motor 23, so as to apply a centrifugal force to the screening frame 2. In this way, the screening frame 2 can realize vibration in combination with the centrifugal force and the spring 21, so as to complete the screening of the sand.

[0032] As shown in Figure 1 and Figure 2 , a sliding plate 4 of a rectangular structure is slidingly arranged at the top front side and the top rear side of the screening box body 1. A cover plate 5 of a concave structure is slidingly arranged above the screening box body 1. The inner side end of the cover plate 5 is slidingly connected with the outer end surface of the sliding plate 4. At the same time, a material guide hopper 54 is arranged at the top left side of the cover plate 5. The material guide hopper 54 has a hollow structure. An inlet 55 for feeding is formed at the top right side of the material guide hopper 54. A protruding end 56 is formed at the left side of the inlet 55 along the inner wall top end surface. A baffle 57 is rotatably arranged at the left side of the protruding end 56 along the inner wall surface of the material guide hopper 54. The lower end of the baffle 57 is spaced apart from the inner wall bottom end surface of the material guide hopper 54. Finally, a discharge port 58 is formed at the inner wall bottom end of the material guide hopper 54. The discharge port 58 is in communication with the lower surface of the cover plate 5.

[0033] During use, the user can slide the cover plate 5 on top of the screening box body 1, which allows the internal space of the screening box to be easily opened, facilitating the replacement of the screen plate 26. Furthermore, the design of the guide hopper 54 and the baffle 57 can block the smoke and dust generated at the screening frame 2.

[0034] Furthermore, a first groove 41 is formed along a straight line at the end of the screening box body 1 facing the slide plate 4. At least two first support rods 42 are fixedly arranged along the right side of the end of the slide plate 4 facing the first groove 41, with one end of the first support rod 42 extending into the first groove 41. A first roller 43 is then provided at the extended end of the first support rod 42. Simultaneously, a second groove 51 is formed along a straight line at the end of the slide plate 4 facing the cover plate 5. At least two second support rods 52 are fixedly arranged along the right side of the end of the cover plate 5 facing the second groove 51, with one end of the second support rod 52 extending into the second groove 51. A second roller 53 is then provided at the extended end of the second support rod 52. In use, the cover plate 5 and the slide plate 4 can slide quickly on the top of the screening box body 1 with the help of the corresponding rollers, making it convenient to open the top of the screening box after sliding.

[0035] like Figure 1 and Figure 5 As shown, both the cover plate 5 and the screen plate 26 are provided with limiting members 6 for fixing. The limiting member 6 consists of fixing screws 61 and openings 62. The openings 62 are respectively opened at the cover plate 5, the slide plate 4, the screening box body 1, the screening frame 2, and the screen plate 26. The fixing screws 61 are threadedly connected to the corresponding openings 62, thereby achieving a stable fixation of the cover plate 5 and the screen plate 26.

[0036] For example, when it is necessary to fix the cover plate 5, corresponding openings 62 can be made in advance on the front and rear end faces of the cover plate 5 and the slide plate 4, as well as on the screening box body 1. Then, the fixing screws 61 are threaded to the openings 62 on the cover plate 5, the slide plate 4 and the screening box body 1 to complete the fixing of the cover plate 5.

[0037] Similarly, if it is necessary to fix the screen plate 26, corresponding openings 62 can be pre-drilled on the outer side to the inner wall of the screening frame 2 and on the outer side of the screen plate 26. Then, the fixing screws 61 are threadedly connected to the openings 62 on the screening frame 2 and the screen plate 26 to achieve a stable fixation of the screen plate 26 after replacement.

[0038] Furthermore, the screen plate 26 consists of a frame and a screen body. The screen body is set inside the frame, and the opening 62 is opened on the outer end face of the frame. This design facilitates the threaded connection between the fixing screw 61 and the screen plate 26.

[0039] Finally, it should be noted that the above examples are merely specific embodiments of the present application, and are used to illustrate the technical solutions of the present application, but not to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that, within the technical scope disclosed by the present application, any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features. These modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A sand screening device, comprising a screening box body (1), characterized in that: The upper surface of the screening box body (1) forms a receiving cavity, and the receiving cavity has an outlet (3) from the middle of the bottom to the lower surface. A screening frame (2) is suspended above the outlet (3). The screening frame (2) is a rectangular frame, and the right side of the inner wall and the right end face are open. A slot (25) is opened in the middle of the upper surface of the screening frame (2), and the slot (25) is also connected to the lower surface of the screening frame (2). The screening frame (2) is provided with four corner edges along the lower surface. A spring (21) is provided, and the lower end of the spring (21) is connected to the bottom end face of the inner wall of the receiving cavity. A screen plate (26) is detachably installed on the bottom end face of the inner wall of the screening frame (2). An L-shaped baffle (27) is provided at the front end and rear end of the right side of the inner wall of the screening frame (2). When in use, the L end of the baffle (27) can contact the upper surface of the screen plate (26). A drive component is provided in the middle of the bottom of the screening frame (2). When in use, the drive component can make the screening frame (2) vibrate.

2. The sand screening equipment according to claim 1, characterized in that: The screening frame (2) is inclined and fixedly provided with a first discharge hopper (31) below the inner wall of the outlet (3), wherein the lower end of the first discharge hopper (31) passes through the outlet (3) and extends to the outside of the screening box body (1). At the same time, a second discharge hopper (32) is inclinedly provided on the right side of the bottom of the screening frame (2), and the lower end of the second discharge hopper (32) passes through and extends to the outside of the screening box body (1).

3. The sand screening equipment according to claim 2, characterized in that: The internal area of ​​the first discharge hopper (31) and the second discharge hopper (32) is larger than the area of ​​the screening frame (2), and the top of the second discharge hopper (32) is open.

4. A sand screening device according to claim 1, characterized in that: The drive assembly includes a bracket (22), a support plate (221) disposed on the inner end face of the bracket (22), and a motor (23) invertedly mounted on the upper surface of the support plate (221). There are two brackets (22). An eccentric block (24) is disposed at the drive shaft of the motor (23). A protective cover is fixedly disposed on the upper surface of the support plate (221), and a gap is left between the protective cover and the eccentric block (24).

5. A sand screening device according to claim 1, characterized in that: A rectangular slide plate (4) is slidably provided on the front and rear sides of the top of the screening box body (1), and a concave cover plate (5) is slidably provided on the top of the slide plate (4) and the screening box body (1). The inner end of the cover plate (5) is slidably connected to the outer end face of the slide plate (4).

6. A sand screening device according to claim 5, characterized in that: A guide hopper (54) is provided on the top left side of the cover plate (5), and a hollow structure is formed inside the guide hopper (54). An inlet (55) for feeding is opened on the top right side of the guide hopper (54), and a protruding end (56) is formed on the top surface of the inner wall on the left side of the inlet (55). A baffle (57) is rotatably provided on the left side of the protruding end (56) along the inner wall surface of the guide hopper (54), and the lower end of the baffle (57) is spaced from the bottom surface of the inner wall of the guide hopper (54). An outlet (58) is opened at the bottom of the inner wall of the guide hopper (54), and the outlet (58) is connected to the lower surface of the cover plate (5).

7. A sand screening device according to claim 5, characterized in that: The screening box body (1) has a first groove (41) in a straight line at one end facing the slide plate (4). A first support rod (42) is fixedly provided on the right side of one end of the slide plate (41) facing the first groove (41). There are at least two first support rods (42). One end of the first support rod (42) extends into the first groove (41), and a first roller (43) is provided at the extended end of the first support rod (42). The slide plate (4) has a second groove (51) in a straight line at one end facing the cover plate (5). The cover plate (5) has a second support rod (52) fixedly installed on the right side at one end facing the second groove (51). There are at least two second support rods (52). One end of the second support rod (52) extends into the second groove (51), and a second roller (53) is provided at the extended end of the second support rod (52).

8. A sand screening device according to claim 1, characterized in that: The screening frame (2) and the screen plate (26) are detachably connected by a limiting member (6), wherein the limiting member (6) includes a fixing screw (61) and an opening (62). The opening (62) is opened at the screening frame (2) and the screen plate (26), and the fixing screw (61) is threadedly connected to the opening (62).

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