Hexagonal sand screen with quick-change sieve plate

Abstract

This utility model relates to a hexagonal sand screen with a quick-change screen plate, comprising a hexagonal screen body, which is composed of an external frame, a rotating shaft, a support platform, a drive device, and a hexagonal screen frame. The hexagonal screen frame includes a horizontal frame and a vertical frame. A fixing device is provided in the horizontal frame, which includes a pair of fixing blocks, which are respectively inserted on both sides of the horizontal frame. A connecting shaft is provided on one side of the fixing blocks, and a connecting plate is connected to the connecting shaft. A movable handle is provided at the top of the horizontal frame, and the bottom of the movable handle is inserted in the horizontal frame and a synchronization plate is provided. A through shaft is provided at the bottom of the synchronization plate, and the through shaft forms a hinge structure with the connecting plates on both sides. A pair of limiting rods are also provided on the inner side of the horizontal frame, and the limiting rods are inserted at both ends of the synchronization plate. A tension spring is connected to the bottom of the synchronization plate. The beneficial effect of this utility model is that the screen plate can be easily disassembled and assembled without professional tools, reducing the difficulty of operation and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of screening devices, and in particular to a hexagonal sand screening device with a quick-change screen plate. Background Technology

[0002] As a key screening equipment, the hexagonal screen plays a vital role in many fields such as casting, metallurgy, mining, and chemical industry. Its core component is the hexagonal screen cylinder. This unique design makes the hexagonal screen highly efficient and uniform in the screening process. In the existing design of hexagonal screens, the screen plate is usually fixed to the screen cylinder with bolts. Although this fixing method ensures the stability of the screen plate to a certain extent, it brings many problems in the subsequent maintenance process. Because the bolt fixing requires precise alignment and tightening, it makes the disassembly and installation of the screen plate extremely cumbersome. Utility Model Content

[0003] To overcome the shortcomings of the existing problems mentioned above, this utility model provides a sand treatment hexagonal screen with a quick-change screen plate, which can quickly disassemble and assemble the screen plate.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a hexagonal sand treatment screen with a quick-change screen plate, comprising a hexagonal screen body, which is composed of an external frame, a rotating shaft, a support platform, a drive device, and a hexagonal screen frame. The support platform is set at both ends of the external frame, the rotating shaft is inclinedly set in the external frame, both ends are fixed to the support platform, and one end is connected to the drive device. The hexagonal screen frame is installed on the rotating shaft in the external frame, and a feed inlet is provided at the end of the external frame away from the drive device. The hexagonal screen frame includes a horizontal frame and a vertical frame, which cooperate to form a hexagonal frame structure. Several placement slots are also formed on the frame, and screen plates are set on the placement slots. A fixing device is provided in the horizontal frame. The fixing device includes a pair of fixing blocks, which are respectively installed on both sides of the cross frame. A connecting shaft is connected to one side of the fixing blocks inside the cross frame, and a connecting plate is connected to the connecting shaft. The connecting plate is rotatably mounted on the fixing blocks via the connecting shaft. A movable handle is provided at the top of the cross frame. The movable handle is U-shaped and its bottom is inserted into the cross frame. A synchronization plate is provided therein. A through shaft is provided at the bottom of the synchronization plate, and the through shaft forms a hinge structure with the connecting plates on both sides. A pair of limiting rods are also provided inside the cross frame. The limiting rods are inserted at both ends of the synchronization plate. Washers are provided on the surface of the synchronization plate at the positions of the limiting rods. A tension spring is connected to the bottom of the synchronization plate and is sleeved on the positions of the limiting rods.

[0005] Preferably, multiple flip doors are provided on both sides of the external frame. The flip doors are hinged to the external frame at the hinge points, and the bottom of the flip doors are fixed to the external frame with bolts.

[0006] Preferably, a pressing plate is provided at the upper middle position of the movable grip, and a pressing spring is also provided between the movable grip and the pressing plate. Triangular plates are provided at both ends of the pressing plate, and a sliding groove that cooperates with the triangular plates is provided on the inner side of the movable grip. A locking rod is provided inside both ends of the movable grip, and the locking rod passes through the movable grip. One end of the locking rod is set as a round head structure, and the other end of the locking rod is set as an inclined structure that cooperates with the triangular plates. A baffle is provided at the middle position of the locking rod, and a limiting post that cooperates with the baffle is provided at both ends of the movable grip.

[0007] Preferably, the sieve plate includes a sieve plate frame, and the sieve plate frame is provided with a fixing groove that cooperates with the fixing block.

[0008] Preferably, the crossbar and longitudinal frame are also provided with pads for placing the sieve plate.

[0009] The beneficial effects of this utility model are that the setting of the fixing device and the movable handle allows the operator to easily complete the disassembly and assembly of the screen plate without the need for professional tools, which reduces the difficulty of operation. Compared with the traditional bolt fixing method, it does not require precise alignment and bolt tightening, which greatly simplifies the maintenance process and improves work efficiency. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a top view of the structure of this utility model;

[0013] Figure 3 This is a side view structural diagram of the present invention;

[0014] Figure 4 This is a partial structural diagram of a hexagonal sieve frame;

[0015] Figure 5 This is a structural diagram of the fixing device in its fixed state;

[0016] Figure 6 This is a schematic diagram of the structure of the fixed device in its retracted state;

[0017] Figure 7 This is a schematic diagram of the internal connection structure of the fixing device;

[0018] Figure 8 This is a top-view structural sectional view of the fixed device;

[0019] Figure 9 This is a cross-sectional view of the active grip in its normal state.

[0020] Figure 10 This is a cross-sectional view of the active grip in the pressing state.

[0021] In the diagram, 1. External frame; 11. Feed inlet; 12. Flip-over door; 13. Bolt; 14. Hinge point; 2. Rotating shaft; 3. Support platform; 4. Drive device; 5. Hexagonal screen frame; 51. Horizontal frame; 52. Vertical frame; 53. Placement slot; 54. Shim; 55. Slide rail; 6. Screen plate; 61. Screen plate frame; 62. Fixing slot; 7. Fixing device; 71. Fixing block; 72. Connecting shaft; 73. Connecting plate; 74. Synchronizing plate; 75. Through shaft; 76. Limiting rod; 77. Washer; 78. Tension spring; 79. Slide rail groove; 8. Movable handle; 81. Pressing plate; 82. Pressing spring; 83. Triangular plate; 84. Slide groove; 85. Locking rod; 86. Baffle; 87. Limiting post. Detailed Implementation

[0022] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0024] according to Figures 1-10As shown, a hexagonal sand treatment screen with a quick-change screen plate includes a hexagonal screen body, which is composed of an outer frame 1, a rotating shaft 2, a support platform 3, a drive device 4, and a hexagonal screen frame 5. The support platform 3 is located at both ends of the outer frame 1. The rotating shaft 2 is inclinedly arranged in the outer frame 1, with both ends fixed to the support platform 3 and one end connected to the drive device 4. The hexagonal screen frame 5 is installed on the rotating shaft 2 in the outer frame 1. The end of the outer frame 1 away from the drive device 4 is provided with a feed inlet 11. The outer frame 1 is configured as an inclined structure to cooperate with the rotating shaft. The diameter of the hexagonal screen frame 5 gradually decreases from high to low as the rotating shaft 2 tilts. The hexagonal screen frame 5 includes... The frame includes a horizontal frame 51 and a vertical frame 52, which together form a hexagonal structure. Several placement slots 53 are formed on the frame, and sieve plates 6 are placed on the slots 53. A fixing device 7 is provided in the horizontal frame 51, comprising a pair of fixing blocks 71. The fixing blocks 71 are respectively inserted on both sides of the horizontal frame 51. The fixing blocks 71 are T-shaped, with one end extending out of the horizontal frame 51 to fix the sieve plate, and the other end placed inside the horizontal frame 51 to limit the movement range of the fixing blocks 71. Slide rail grooves 79 are also provided at both ends of the fixing blocks 71, and slide rails 55 that cooperate with the slide rail grooves 79 are provided at both ends of the horizontal frame 51 to ensure the stability of the fixing blocks 71 during movement. The fixing blocks are located inside the horizontal frame 51. A connecting shaft 72 is connected to one side of the crossbeam 71, and a connecting plate 73 is connected to the connecting shaft 72. The connecting plate 73 is rotatably mounted on the fixed block 71 via the connecting shaft 72. The connecting plate 73 has a through hole, which cooperates with the connecting shaft 72 to rotatably mount it on the fixed block 71. A movable handle 8 is provided at the top of the crossbeam 51. The movable handle 8 has a U-shaped structure, and its bottom is inserted into the crossbeam 51. A synchronization plate 74 is provided therein, and a through shaft 75 is provided at the bottom of the synchronization plate 74. The through shaft 75 forms a hinge structure with the connecting plates 73 on both sides. The connecting plates 73 on both sides have concave and convex structures, respectively. The convex positions of the connecting plates 73 on both sides mesh with each other. A through hole is provided, through which a through shaft 75 passes to form a hinge structure; a pair of limiting rods 76 are also provided on the inner side of the cross frame 51, the limiting rods 76 pass through both ends of the synchronous plate 74, and are used to keep the synchronous plate 74 stable during the lifting and lowering process. A washer 77 is also provided on the surface of the synchronous plate 74 at the position of the limiting rod 76. The washer 77 is usually made of rubber to prevent the synchronous plate 74 from directly colliding with the inner side of the cross frame 51. A tension spring 78 is connected to the bottom position of the synchronous plate 74. The tension spring 78 is sleeved at the position of the limiting rod 76. The tension spring 78 provides a certain degree of tension to prevent the movable handle 8 from rising easily. The tension spring 78 also prevents the movable handle 8 and the synchronous plate 74 from falling too much.

[0025] Multiple flip doors 12 are also provided on both sides of the external frame 1. The flip doors 12 are hinged to the external frame 1 at the hinge point 14. The bottom of the flip doors is fixed to the external frame 1 by bolts 13. The flip doors 12 can be opened by unscrewing the bolts 13 to maintain the hexagonal screen frame 5 in the external frame 1.

[0026] A pressing plate 81 is provided at the upper middle position of the movable grip 8. A pressing spring 82 is also provided between the movable grip 8 and the pressing plate 81. Triangular plates 83 are provided at both ends of the pressing plate 81. A sliding groove 84 that cooperates with the triangular plates 83 is provided on the inner side of the movable grip 8. A locking rod 85 is provided inside both ends of the movable grip 8. The locking rod 85 passes through the movable grip 8. One end of the locking rod 85 is set with a round head structure. In the normal state, the round head end of the locking rod 85 is located inside the crossbeam 51 and is used to lock the position of the movable grip 8. The other end of the locking rod 85 is set with an inclined structure that cooperates with the triangular plates 83. A baffle 86 is provided at the middle position of the locking rod 85. Limiting posts 87 that cooperate with the baffle 86 are provided at both ends of the movable grip 8.

[0027] The sieve plate 6 includes a sieve plate frame 61, and the sieve plate frame 61 is provided with a fixing groove 62 that cooperates with the fixing block 71. The sieve plate 6 is fixed by the cooperation of the fixing groove 62 and the fixing block 71.

[0028] The horizontal frame 51 and the vertical frame 52 are also provided with pads 54 for placing the sieve plate 6. The pads 54 can facilitate the placement of the sieve plate 6 in the placement groove 53.

[0029] In practical use, first open the flip door 12. When it is necessary to disassemble the screen plate 6, the operator only needs to lift the movable handle 8 on one side of the screen plate 6. While lifting the movable handle 8, press the pressing plate 81. The movable handle 8 can be lifted, which will cause the fixing block 71 to retract, thus facilitating the removal of the screen plate 6. When installing the screen plate 6, one side of the movable handle 8 can be lifted first to place one side of the screen plate 6 into the corresponding placement slot 53. Then, lift the other side of the movable handle 8 to place the screen plate 6 completely in the placement slot 53. During the operation of the movable handle 8, the rising of the synchronous plate 74 will cause the connecting plate 73 to rotate around the through shaft 75, while pulling the fixing block 71 inward to retract it, facilitating the removal or placement of the screen plate 6. Then, after pressing the movable handle 8, it will engage with the tension spring 78. When the timing plate 74 is pulled back, the fixing block 71 extends back. At this time, the screen plate 6 is fixed in the placement groove 53 through the fixing groove 62 and the fixing block 71. In addition, when the movable handle 8 is pulled up, the pressing plate 81 is pressed, which drives the triangular plate 83 to move upward along the slide groove 84. Then, a gap will appear between the triangular plate 83 and the tail of the locking rod 85. The round end of the locking rod 85 can retract when it passes through the position where the cross frame 51 and the movable handle 8 are inserted, so that the movable handle 8 can be lifted smoothly. After the pressing plate 81 is released, the pressing spring 82 will cause the pressing plate 81 to rebound, allowing the triangular plate 83 to move downward and push the locking rod 85 back to its original position, ensuring that the movable handle 8 cannot be lifted when it is inside the cross frame 51, thereby ensuring the stability of the fixation and preventing the movable handle 8 from being lifted accidentally due to vibration or other external factors.

[0030] This design is ingenious, allowing operators to easily assemble and disassemble the screen plate without the need for specialized tools, thus reducing operational difficulty. Compared to traditional bolt fixing methods, it eliminates the need for precise alignment and bolt tightening, greatly simplifying the maintenance process and improving work efficiency. The more convenient screen plate replacement makes the use of the hexagonal screen more flexible.

[0031] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A hexagonal sand treatment sieve with a quick-change sieve plate, characterized in that: The device includes a hexagonal sieve body, which is composed of an external frame (1), a rotating shaft (2), a support platform (3), a drive device (4), and a hexagonal sieve frame (5). The support platform (3) is located at both ends of the external frame (1). The rotating shaft (2) is inclinedly located in the external frame (1), with both ends fixed to the support platform (3) and one end connected to the drive device (4). The hexagonal sieve frame (5) is installed on the rotating shaft (2) in the external frame (1). The external frame (1) is located away from the drive device. The device (4) has a feed inlet (11) at one end; the hexagonal screen frame (5) includes a horizontal frame (51) and a vertical frame (52), which together form a hexagonal frame. Several placement slots (53) are also formed on the frame, and screen plates (6) are provided on the placement slots (53); a fixing device (7) is provided in the horizontal frame (51), which includes a pair of fixing blocks (71). The fixing blocks (71) are respectively inserted into the horizontal frame (51). On both sides of the cross frame (51), a connecting shaft (72) is connected to one side of the fixing block (71) inside the cross frame (51). A connecting plate (73) is connected to the connecting shaft (72). The connecting plate (73) is rotatably mounted on the fixing block (71) via the connecting shaft (72). A movable handle (8) is provided at the top of the cross frame (51). The movable handle (8) is configured as a U-shaped structure. The bottom of the movable handle (8) passes through the cross frame (51) and is provided with a synchronization plate (74). 74) A through shaft (75) is provided at the bottom, and the through shaft (75) and the connecting plates (73) on both sides form a hinge structure; a pair of limiting rods (76) are also provided on the inner side of the cross frame (51), the limiting rods (76) are inserted through both ends of the synchronous plate (74), and a washer (77) is also provided on the surface of the synchronous plate (74) at the position of the limiting rod (76). A tension spring (78) is connected to the bottom position of the synchronous plate (74), and the tension spring (78) is sleeved on the position of the limiting rod (76).

2. The sand treatment hexagonal sieve with quick-change sieve plate according to claim 1, characterized in that: Multiple flip doors (12) are also provided on both sides of the external frame (1). The flip doors (12) are hinged on the external frame (1) at the hinge point (14). The bottom position of the flip doors is fixed to the external frame (1) by bolts (13).

3. The sand treatment hexagonal sieve with quick-change sieve plate according to claim 1, characterized in that: A pressing plate (81) is provided at the upper middle position of the movable grip (8). A pressing spring (82) is also provided between the movable grip (8) and the pressing plate (81). Triangular plates (83) are provided at both ends of the pressing plate (81). A sliding groove (84) that cooperates with the triangular plate (83) is provided on the inner side of the movable grip (8). A locking rod (85) is provided inside both ends of the movable grip (8). The locking rod (85) passes through the movable grip (8). One end of the locking rod (85) is set as a round head structure. The other end of the locking rod (85) is set as an inclined structure that cooperates with the triangular plate (83). A baffle (86) is provided at the middle position of the locking rod (85). Limiting posts (87) that cooperate with the baffle (86) are provided at both ends of the movable grip (8).

4. The sand treatment hexagonal sieve with quick-change sieve plate according to claim 1, characterized in that: The sieve plate (6) includes a sieve plate frame (61), and the sieve plate frame (61) is provided with a fixing groove (62) that cooperates with the fixing block (71).

5. The sand treatment hexagonal sieve with quick-change sieve plate according to claim 1, characterized in that: The cross frame (51) and the longitudinal frame (52) are also provided with pads (54) for placing the sieve plate (6).

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