Sand filter device

Abstract

This application relates to the field of sand filtration technology, and more particularly to a sand filtration device. The sand filtration device provided in this application includes: a support frame; a filter box, including a filter element and a support member surrounding the filter element, the filter element having sieve holes, and the support member being reciprocally movable along a first direction on the support frame to drive the filter element to move; a drive mechanism, including a drive member and an elastic member, the first end of the elastic member being connected to the filter box, and the second end of the elastic member being in a transmission engagement with the drive member to drive the support member to move under the drive of the drive member. The sand filtration device provided in this application helps to improve sand filtration efficiency.

Description

Technical Field

[0001] This application relates to the field of sand filtration technology, and more particularly to a sand filtration device. Background Technology

[0002] In industrial surface treatment processes, sandblasting technology is widely used in metal cleaning, coating pretreatment, and surface strengthening. Its core relies on the high-speed impact of abrasive materials (such as steel shot and quartz sand). With the increasing demand for efficient and continuous production in modern manufacturing, the recycling of abrasive materials in sandblasting has become a crucial step. Impurities (such as debris, dust, and dead particles) need to be removed through filtration devices to maintain abrasive performance and reduce raw material costs.

[0003] Existing sand filtration methods typically employ manual filtration, where workers manually operate screens or sorting tools to sieve the used sand.

[0004] However, manual filtration is inefficient and cannot meet the needs of continuous production. Utility Model Content

[0005] In view of the above problems, this application provides a sand filtration device that helps to improve sand filtration efficiency.

[0006] This application provides a sand filtration device, comprising: a support frame; a filter box including a filter element and a support member surrounding the filter element, the filter element having sieve holes, the support member being reciprocally movable along a first direction on the support frame to drive the filter element to move; and a drive mechanism including a drive member and an elastic member, the first end of the elastic member being connected to the filter box, and the second end of the elastic member being in a transmission engagement with the drive member to drive the support member to move under the drive of the drive member.

[0007] In one possible implementation, the drive mechanism further includes a transmission assembly connected to both the drive member and the elastic member, wherein the drive member acts on the elastic member through the transmission assembly.

[0008] In one possible implementation, the drive element is fixedly mounted on the bracket, and the drive element has a rotatable output shaft; the transmission assembly includes a cam and a connecting rod, the connecting rod being connected to the second end of the elastic element, the cam being connected to the output shaft, and the rotating surface of the cam abutting against the connecting rod.

[0009] In one possible implementation, the linkage includes: a connecting frame, one end of which is fixedly connected to the elastic element, and the other end of which has a movable groove opening in a first direction; and a roller, which is rotatably disposed in the movable groove, and the rolling surface of the roller abuts against the rotating surface of the cam.

[0010] In one possible implementation, the movable groove has pivot holes on two opposite groove walls along the second direction; the roller has an axle that rotatably passes through the two pivot holes.

[0011] In one possible implementation, the filter box further includes: a mounting bracket disposed on both sides of the support member along a second direction; and pulleys rotatably disposed on the mounting bracket, the pulleys being adapted to move along the support.

[0012] In one possible implementation, the bracket is provided with a slide rail extending along the first direction, and the pulley is movable along the slide rail.

[0013] In one possible implementation, the drive element includes a drive motor.

[0014] In one possible implementation, the support includes: a plurality of support beams extending vertically, the plurality of support beams being divided into multiple groups spaced apart along a second direction, each group including a plurality of support beams spaced apart along a first direction; a carrier body supported on the top of the plurality of support beams, the carrier body having a hollow area, and the filter box reciprocating within the hollow area.

[0015] In one possible implementation, the filter box includes a first support member, a first filter element, a second support member, and a second filter element. The first support member is located above the second support member, and the second support member is slidably connected to the first support member. The first end of the elastic member is connected to the first support member and the second support member respectively via a connector. The connector includes a first connecting portion and a second connecting portion, wherein the left sides of the first connecting portion and the second connecting portion are located in the same vertical plane, and the distance between the left and right sides of the first connecting portion is smaller than the distance between the left and right sides of the second connecting portion. The connector is configured to drive the first support member and the second support member to achieve misaligned movement under the action of the driving member.

[0016] The sand filtration device provided in this application is connected to the filter box via an elastic element, which drives the support member to reciprocate along a first direction, causing the filter element to move synchronously. This ensures that the sand is evenly distributed and continuously tumbles on the surface of the filter element, improving filtration efficiency. The elastic element absorbs and releases some kinetic energy during transmission, reducing the rigid impact between the drive member and the support, minimizing component wear, and extending the device's service life. Simultaneously, the reciprocating design of the support member causes the filter element to vibrate regularly, promoting rapid separation of sand and impurities, reducing screen clogging, and enabling continuous and efficient automated screening operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of the sand filtration device provided in this application;

[0019] Figure 2 A side view of the sand filtration device provided in this application;

[0020] Figure 3 A top view of the sand filtration device provided in this application;

[0021] Figure 4 This is another structural schematic diagram of the sand filtration device provided in this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Sand filtration device;

[0024] 10-Staff;

[0025] 110 - Support beam;

[0026] 20-Filter box;

[0027] 210 - Filter element;

[0028] 211-sieve aperture;

[0029] 220 - Support component;

[0030] 230-Pulley;

[0031] 30 - Drive mechanism;

[0032] 310 - Drive components;

[0033] 320 - Elastic element;

[0034] 40 - Transmission components;

[0035] 410-Cam;

[0036] 420-link;

[0037] 421 - Roller;

[0038] 430 - Active slot;

[0039] 50 - Exports;

[0040] 60-Connector;

[0041] 610 - First connecting part;

[0042] 620 - Second connecting part.

[0043] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] As the background section describes, existing sand filtration typically employs manual filtration, where workers manually operate screens or sorting tools to sieve used sand. However, manual filtration is inefficient and cannot meet the demands of continuous production. Furthermore, manually operating screens or sorting tools requires frequent emptying and leveling of the sand to separate impurities, as well as regular cleaning of clogged screen holes. This process suffers from low efficiency, high labor intensity, and inconsistent screening quality. Especially in large-scale processing, manual operation makes it difficult to avoid abrasive buildup or missed screening, resulting in a high rate of impurity residue.

[0046] In view of this, this application provides a sand filtration device, which is connected to the filter box via an elastic element. The elastic element drives the support member to reciprocate along a first direction, causing the filter element to move synchronously. This ensures that the sand is evenly distributed and continuously tumbles on the surface of the filter element, improving filtration efficiency. During transmission, the elastic element absorbs and releases some kinetic energy, reducing the rigid impact between the drive member and the support, minimizing component wear, and extending the device's service life. Simultaneously, the reciprocating design of the support member causes the filter element to vibrate regularly, promoting rapid separation of sand and impurities, reducing screen clogging, and enabling continuous and efficient automated screening operations.

[0047] The following is for reference. Figure 1 , Figure 2 , Figure 3This application provides a sand filtration device 1, including a support 10, a filter box 20, and a drive mechanism 30. The support 10 serves as a fixed support frame for the sand filtration device 1, providing a stable base and guiding structure. The filter box 20 is mounted on the support 10 and performs the core function of sand screening. The filter box 20 includes a filter element 210 and a support element 220. The filter element 210 can be a screen, using its mesh openings 211 to achieve physical separation of sand and impurities. The support element 220 is arranged around the filter element 210. The support element 220 is reciprocally movable on the support 10. Optionally, the support element 220 can be slidably or rollingly connected to the support 10. Further, the support element 220 is reciprocally movable on the support 10 along a first direction, thereby driving the filter element 210 to reciprocate along the first direction. The first direction can be the X direction.

[0048] The drive mechanism 30 provides power for the reciprocating motion of the filter box 20. Specifically, the drive mechanism 30 includes a drive member 310 and an elastic member 320. The first end of the elastic member 320 can be connected to the filter box 20, and the second end of the elastic member 320 can be driven by the drive member 310 to move the support member 220 under the drive of the drive member 310.

[0049] In the specific implementation process, the support member 220 can reciprocate along the first direction under the action of the drive mechanism 30, thereby driving the filter element 210 to vibrate synchronously. The sand can continuously roll and spread evenly on the surface of the filter element 210 under the action of inertia. Under the above conditions, qualified particles (particle size smaller than the sieve hole 211) pass through the sieve hole 211 of the filter element 210 under the combined action of gravity and vibration to complete the classification, while impurities and large particles are trapped on the surface of the filter element 210. At the same time, the reciprocating vibration forces relative friction between the sand and the filter element 210. Combined with the energy storage and release characteristics of the elastic member 320, adaptive micro-amplitude high-frequency vibration can be formed, which not only prevents the sieve hole 211 from being blocked by sand accumulation, but also shakes the stuck impurity particles away from the sieve hole 211 through periodic shaking, thereby ensuring the efficiency of continuous screening. Finally, the clean sand can be discharged from the outlet 50 below the sieve hole 211, while the impurities can move with the vibration direction to the slag discharge port at the edge of the filter element 210 for automatic collection, realizing efficient filtration of sand.

[0050] Understandably, the elastic element 320, connected to the filter box 20, drives the support element 220 to reciprocate along the first direction, causing the filter element 210 to move synchronously. This ensures that the sand is evenly distributed and continuously tumbles on the surface of the filter element 210, improving filtration efficiency. During transmission, the elastic element 320 absorbs and releases some kinetic energy, reducing the rigid impact between the drive element 310 and the support 10, minimizing component wear, and extending the device's lifespan. Simultaneously, the reciprocating design of the support element 220 causes the filter element 210 to vibrate regularly, promoting rapid separation of sand and impurities, reducing clogging of the screen holes 211, and enabling continuous, efficient, and automated screening operations.

[0051] In one possible implementation, refer to Figure 1 , Figure 3 The drive mechanism 30 also includes a transmission assembly 40. The transmission assembly 40 can be connected to the drive member 310 and the elastic member 320 respectively. The drive member 310 can act on the elastic member 320 through the transmission assembly 40 to convert the power of the drive member 310 into the periodic extension and retraction motion of the elastic member 320, thereby driving the support member 220 to move back and forth stably. At the same time, the energy storage characteristics of the elastic member 320 buffer the impact and maintain vibration stability.

[0052] In one possible implementation, refer to Figure 1 , Figure 3 The drive element 310 can be fixedly mounted on the bracket 10. The drive element 310 has a rotatable output shaft. For example, the drive element 310 can be a drive motor, electric motor, etc. The transmission assembly 40 can include a cam 410 and a connecting rod 420. The connecting rod 420 can be connected to the second end of the elastic element 320, and the cam 410 can be connected to the output shaft. Furthermore, the rotational surface of the cam 410 can abut against the connecting rod 420.

[0053] Optionally, the cam 410 can be an eccentric cam, a heart-shaped cam, a compound profile cam, etc. The type of cam 410 in this application can be selected according to actual usage, and this application does not impose any limitations. For example, an eccentric cam can be used in conventional screening scenarios requiring constant amplitude and medium frequency. A heart-shaped cam can be used in high-precision scenarios requiring uniform speed screening and avoiding impact. A compound profile cam can be used when differentiated vibration modes are required. The surface of the cam 410 can also be coated with tungsten carbide for wear resistance.

[0054] Furthermore, to accommodate variations in the eccentricity of the cam 410 or the stiffness of the elastic element 320, the connecting rod 420 can be divided into two sections, with its overall length adjusted via threads or pins. The connecting rod 420 can be made of aluminum alloy or carbon fiber composite material to reduce inertial loads. The elastic element 320 can be a coil spring, air spring, etc.

[0055] Understandably, by driving the cam 410 to rotate via the output shaft of the drive component 310, causing its rotating surface to abut against the connecting rod 420, the rotational motion can be converted into the periodic linear reciprocating motion of the connecting rod 420. Furthermore, the energy storage and release characteristics of the elastic component 320 buffer the impact force, making the reciprocating movement of the support component 220 smoother. Moreover, the rotating surface of the cam 410 can control the displacement of the connecting rod 420, thereby optimizing the vibration trajectory of the filter element 210 and preventing the sand from becoming clogged or unevenly distributed in the screen holes 211 due to sudden amplitude changes.

[0056] In one possible implementation, refer to Figure 1 , Figure 3 The connecting rod 420 includes a connecting frame and a roller 421. One end of the connecting frame can be fixedly connected to the elastic member 320. The other end of the connecting frame has a movable groove 430 that opens in a first direction. The roller 421 is rotatably disposed in the movable groove 430. The rolling surface of the roller 421 abuts against the rotating surface of the cam 410.

[0057] Understandably, by setting the roller 421, the rotational motion of the cam 410 can be converted into the linear reciprocating motion of the connecting rod. Rolling friction can reduce transmission resistance and wear, and extend the service life of the cam 410 and the connecting rod 420. Furthermore, the design of the connecting rod opening along the first direction allows the roller 421 to adaptively fine-tune its position within the movable groove 430, compensating for radial offset or assembly errors during the rotation of the cam 410, and ensuring that the transmission force is evenly transmitted to the elastic element 320.

[0058] In one possible implementation, the movable groove 430 has pivot holes on its groove wall. Specifically, the movable groove 430 has pivot holes on two opposite groove walls along a second direction. The second direction can be the Y direction. The roller 421 is provided with an axle, which rotatably passes through the two pivot holes, so that the roller 421 can rotate within the movable groove 430.

[0059] Optionally, a T-shaped elongated hole can be formed in the wall of the movable groove 430, and the horizontal position of the pivot hole can be adjusted by locking bolts and sliders to accommodate rollers 421 of different diameters or cams 410 of different eccentricities. The surface of the roller 421 can be laser-processed with a micro-dimple array and store grease to reduce sand particle adhesion. Furthermore, a polyurethane elastic baffle can be installed at the open end of the movable groove 430, fixed by a magnetic quick-release structure to prevent large sand particles from entering the area of ​​the roller 421.

[0060] In one possible implementation, refer to Figure 1 , Figure 3The filter box 20 also includes a mounting bracket and pulleys 230. The mounting bracket can be located on both sides of the support member 220. Specifically, the mounting bracket can be located on both sides of the support member 220 along a second direction. The pulleys 230 are rotatably mounted on the mounting bracket. The pulleys 230 can move along the bracket 10 to move the mounting bracket along the bracket 10. Optionally, the mounting bracket can be composed of nested inner and outer slide rails, with its width adjusted by locking bolts to accommodate the spacing of different brackets 10.

[0061] Understandably, by setting up the mounting bracket, the pulley 230 can move along a preset trajectory on the support 10, ensuring that the displacement path of the filter element 210 remains stable and avoiding uneven force on the screen surface or abnormal sand distribution caused by the displacement of the filter element 210. At the same time, the symmetrical layout of the double pulleys 230 can enhance the balance of the filter box 20, suppress lateral swaying caused by vibration, and ensure a stable and efficient screening process.

[0062] In one possible implementation, the support 10 is provided with a slide rail. Specifically, the slide rail on the support 10 can extend in a first direction. In this way, the pulley 230 on the filter box 20 can move along the slide rail to drive the filter box 20 to move on the slide rail.

[0063] In one possible implementation, the drive element 310 can be a drive motor.

[0064] In one possible implementation, refer to Figure 1 , Figure 2 The support frame 10 includes multiple support beams 110 and a load-bearing body. The support beams 110 can extend vertically. Furthermore, the multiple support beams 110 can be divided into multiple groups. Each group can be spaced apart along a second direction. Each group includes several support beams 110. And, the several support beams 110 are spaced apart along a first direction. The load-bearing body can support the tops of the multiple support beams 110. The load-bearing body has a perforated area, within which the filter box 20 can reciprocate.

[0065] Understandably, by extending multiple support beams 110 vertically and forming a grid-like frame with grouped intervals, the overall rigidity of the support 10 can be enhanced, effectively dispersing the dynamic load generated by the reciprocating movement of the filter box 20 and avoiding localized stress concentration. The hollowed-out area of ​​the load-bearing body can provide guiding space for the filter box 20, ensuring its smooth movement along a preset trajectory while reducing contact friction with the support 10. In addition, the grouped support beams 110 optimize the load transmission path, allowing vibration energy to be evenly dissipated to each support beam 110, suppressing the risk of resonance, and ensuring the stability of long-term continuous screening operations.

[0066] In one possible implementation, refer to Figure 1 , Figure 4The filter box 20 can perform multi-stage filtration. For example, the filter box 20 may include two sets of filter components.

[0067] Specifically, the filter box 20 may include a first support member, a first filter element, a second support member, and a second filter element. The first support member may be located above the second support member, and the second support member may be slidably connected to the first support member. The first end of the elastic member 320 is connected to both the first and second support members via a connector 60.

[0068] Furthermore, the connector 60 includes a first connecting portion 610 and a second connecting portion 620. The left sides of the first connecting portion 610 and the second connecting portion 620 are located in the same vertical plane, and the distance between the left and right sides of the first connecting portion 610 is smaller than the distance between the left and right sides of the second connecting portion 620. Thus, the connector 60 can drive the first and second support members to move in a staggered manner under the action of the driving member 310, thereby achieving multi-stage filtration.

[0069] Optionally, the first support member and the second support member can be connected by a bidirectional sliding pair. Specifically, a T-shaped guide rail can be provided on the top of the second support member, and the T-shaped guide rail can extend along the first direction (X direction). A corresponding T-shaped groove is provided on the bottom of the first support member, and a lubrication bushing (such as a graphite copper bushing) is embedded in the T-shaped groove. The T-shaped groove can form a low-friction sliding pair with the T-shaped guide rail.

[0070] Understandably, the coplanar constraint on the left side of the first connecting part 610 and the design of the difference in horizontal spacing on the right side, combined with the design of the first connecting part 620, causes the first and second supporting parts to undergo asymmetrical displacement along the first direction under the action of the driving member 310, forming a misaligned vibration mode of the upper and lower filter elements. Furthermore, this misaligned movement forces the sand to dynamically tumble and alternately screen between the first and second filter elements, effectively improving the utilization rate of the screen openings 211 and preventing particle accumulation and clogging. Simultaneously, the elastic member 320, through the linkage between the connecting member 60 and the two supporting parts, decomposes the unidirectional driving force of the driving member 310 into the coordinated misaligned movement of the two supporting parts. This not only buffers the impact load through elastic energy storage but also adapts to the screening intensity requirements of sand with different particle sizes through the spacing difference design, achieving efficient, low-wear, continuous graded filtration.

[0071] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0072] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0073] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0074] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sand filtering device (1), characterized in that, include: Frame (10); The filter box (20) includes a filter element (210) and a support member (220) surrounding the filter element (210). The filter element (210) is provided with sieve holes (211). The support member (220) is reciprocally movable on the bracket (10) along a first direction to drive the filter element (210) to move. The drive mechanism (30) includes a drive member (310) and an elastic member (320). The first end of the elastic member (320) is connected to the filter box (20), and the second end of the elastic member (320) is in transmission cooperation with the drive member (310) to drive the support member (220) to move under the drive of the drive member (310).

2. A sand filtering device (1) according to claim 1, characterized in that The drive mechanism (30) further includes a transmission assembly (40), which is connected to the drive member (310) and the elastic member (320) respectively, and the drive member (310) acts on the elastic member (320) through the transmission assembly (40).

3. A sand filtering device (1) according to claim 2, characterized in that The driving component (310) is fixedly mounted on the bracket (10), and the driving component (310) has a rotatable output shaft; The transmission assembly (40) includes a cam (410) and a connecting rod (420), the connecting rod (420) being connected to the second end of the elastic element (320), the cam (410) being connected to the output shaft, and the rotating surface of the cam (410) abutting against the connecting rod (420).

4. A sand filtering device (1) according to claim 3, characterized in that The link (420) includes: A connecting frame, one end of which is fixedly connected to the elastic member (320), and the other end of which is provided with a movable groove (430) opening in a first direction; A roller (421) is rotatably disposed in the movable groove (430), and the rolling surface of the roller (421) abuts against the rotating surface of the cam (410).

5. A sand filtering device (1) according to claim 4, characterized in that The movable groove (430) has pivot holes on its two opposite groove walls along the second direction; The roller (421) has an axle that is rotatably inserted through the two pivot holes.

6. A sand filtering device (1) according to claim 1, characterized in that The filter box (20) also includes: Mounting brackets are provided on both sides of the support member (220) along the second direction; A pulley (230) is rotatably mounted on the mounting bracket and is adapted to move along the bracket (10).

7. A sand filtering device (1) according to claim 6, characterized in that The bracket (10) is provided with a slide rail extending along the first direction, and the pulley (230) is movable along the slide rail.

8. A sand filtering device (1) according to claim 1, characterized in that The drive unit (310) includes a drive motor.

9. A sand filtering device (1) according to claim 1, characterized in that The support (10) includes: Multiple support beams (110) extend vertically and are divided into multiple groups spaced apart along a second direction. Each group includes several support beams (110) spaced apart along a first direction. The carrier is supported on the top of a plurality of support beams (110), the carrier has a hollow area, and the filter box (20) moves back and forth within the hollow area.

10. A sand filtering device (1) according to claim 1, characterized in that The filter box (20) includes a first support member, a first filter element, a second support member, and a second filter element. The first support member is located above the second support member, and the second support member is slidably connected to the first support member. The first end of the elastic member (320) is connected to the first support member and the second support member respectively via a connector (60), the connector (60) including a first connecting part (610) and a second connecting part (620). Wherein, the left sides of the first connecting part (610) and the second connecting part (620) are located in the same vertical plane, the distance between the left and right sides of the first connecting part (610) is smaller than the distance between the left and right sides of the second connecting part (620), and the connecting member (60) is configured to drive the first support member and the second support member to achieve misaligned movement under the action of the driving member (310).

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