Quick replacement structure for limestone screen

Abstract

The utility model discloses a quick replacement structure of limestone screen, including screen mounting frame and screen installed on screen mounting frame, its characterized in that screen mounting frame includes lower support frame, with the upper fixed cover of assembling to upper support frame and the locking device of quick installation or disassembly between lower support frame and upper fixed cover, the locking device includes the installation guide column of swing installation on lower support frame, the conical unlocking block of swing suit in guide column and the unlocking of support frame and upper fixed cover between, the drive link of drive guide column movement and the locking piece of swing installation on upper fixed cover and the spacing between support frame and upper fixed cover, the utility model discloses through utilizing the locking device and quick locking or disassembly between lower support frame and upper fixed cover to the quick replacement of limestone screen is convenient, improves the convenience and efficiency of replacement.

Description

Technical Field

[0001] This utility model relates to the field of limestone screen installation technology, specifically to a quick-change structure for limestone screens. Background Technology

[0002] In industries such as mining, building materials, and metallurgy, vibrating screens are key equipment for classifying materials such as limestone. As consumable parts, the screen mesh needs frequent replacement. In existing technologies, the screen mesh is directly mounted to the screen mesh holder using screws. Replacement requires manually removing multiple screws from the holder, increasing workload and reducing efficiency. Therefore, a quick-change structure for limestone screen mesh is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a quick-change structure for limestone screens to solve the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-change structure for limestone screens, comprising a screen mounting frame and a screen mounted on the screen mounting frame; characterized in that the screen mounting frame includes a lower support frame, an upper fixed cover assembled with an upper support frame, and a locking device for quick installation or removal between the lower support frame and the upper fixed cover; the locking device includes a mounting guide post movably mounted on the lower support frame, a conical unlocking block movably fitted on the guide post for unlocking between the support frame and the upper fixed cover, a driving rod for driving the guide post, and a locking member movably mounted on the upper fixed cover for limiting the movement between the support frame and the upper fixed cover.

[0005] Preferably, the lower support frame is provided with an assembly guide groove adapted to the guide column; the assembly guide groove is provided with an installation groove for installing a locking component.

[0006] Preferably, the locking member is equipped with a guide rod that passes through the upper fixed cover at one end; the guide rod is provided with a limiting block and a spring is fitted on it; the spring is located between the inner wall of the mounting groove and the locking member.

[0007] Preferably, the locking element also has an arc-shaped surface.

[0008] Preferably, the guide post is provided with a limiting boss for limiting the locking element; the limiting boss is provided with an adaptation groove that is adapted to the conical unlocking block.

[0009] Preferably, both the upper and lower surfaces of the cone-shaped unlocking block are cone-shaped structures.

[0010] Preferably, the lower support frame is also provided with a guide groove for guiding the drive rod on the guide column, a limiting platform for limiting the guide column, and a positioning platform for positioning the screen.

[0011] As a preferred option, the lower support frame is also equipped with an annular base plate that limits the bottom of the guide column.

[0012] The beneficial effects of this utility model are: by using a locking device to quickly lock or disassemble the lower support frame and the upper fixed cover, it is convenient to quickly replace the limestone screen, thereby improving the convenience and efficiency of replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0015] Figure 3 This is a utility model Figure 2 A magnified view of a section at point B.

[0016] Figure 4 This is a structural schematic diagram of the guide post and the conical unlocking block of this utility model.

[0017] Legend: 1. Screen mounting frame; 2. Screen; 3. Lower support frame; 301. Assembly guide groove; 302. Mounting groove; 303. Guide groove; 304. Limiting platform; 305. Annular base plate; 306. Positioning platform; 4. Upper fixed cover; 5. Locking device; 501. Guide column; 502. Conical unlocking block; 503. Drive rod; 504. Locking component; 505. Guide rod; 506. Limiting block; 507. Spring; 508. Arc-shaped surface; 509. Limiting boss; 510. Adaptor groove. Detailed Implementation

[0018] The quick-change structure for limestone screens described in this utility model will now be further explained with reference to the accompanying drawings.

[0019] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0020] See appendix Figure 1-4As shown, this embodiment discloses a quick-change structure for limestone screens, including a screen mounting frame 1 and a screen 2 mounted on the screen mounting frame 1. The screen mounting frame 1 includes a lower support frame 3, an upper fixed cover 4 assembled with the lower support frame 3, and a locking device 5 for quick installation or removal between the lower support frame 3 and the upper fixed cover 4. The locking device 5 includes a mounting guide post 501 movably mounted on the lower support frame 3, a conical unlocking block 502 movably fitted on the guide post 501 for unlocking between the lower support frame 3 and the upper fixed cover 4, a driving rod 503 for driving the guide post 501, and a locking element 504 movably mounted on the upper fixed cover 4 for limiting the movement between the support frame and the upper fixed cover 4. By using the locking device 5 to quickly lock or remove the lower support frame 3 and the upper fixed cover 4, the quick replacement of the limestone screen 2 is facilitated, improving the convenience and efficiency of replacement. See appendix Figure 2-3 As shown, by installing the upper fixed cover 4 onto the lower support frame 3, and installing the guide post 501 into the assembly guide groove 301 of the upper fixed cover 4, the locking member 504 contacts the guide post 501. The guide post 501 presses the locking member 504, causing the locking member 504 to move backward while the spring 507 contracts. When the limiting boss 509 on the guide post 501 moves to the locking member 504, the locking member 504 is no longer pressed by the guide post 501 and returns to its original position due to the elasticity of the spring 507. One end of the locking member 504 is pushed to the limiting boss 509 of the guide post 501, and the limiting boss 509 limits it, thus limiting the upper fixed cover 4 and the lower support frame 3, thereby facilitating the fixing of the upper fixed cover 4 and the lower support frame 3.

[0021] See appendix Figure 2-3 As shown, the lower support frame 3 is provided with an assembly guide groove 301 adapted to the guide post 501; the assembly guide groove 301 is provided with an installation groove 302 for installing a locking member 504; a guide rod 505 with one end passing through the upper fixed cover 4 is installed on the locking member 504; a limiting block 506 and a spring 507 are provided on the guide rod 505; the spring 507 is located between the inner wall of the installation groove 302 and the locking member 504; the locking member 504 is also provided with an arc-shaped... Surface 508; After being pressed by the guide post 501, the locking member 504 moves back along the mounting groove 302. The locking member 504 drives the guide rod 505 to move, and at the same time compresses the spring 507. When the locking member 504 is no longer pressed by the guide post 501, it is driven to reset by the force of the spring until the limiting block 506 on the guide rod 505 contacts the upper fixed cover 4, which limits the distance of movement of the locking member 504, thereby facilitating the movement of the locking member 504.

[0022] See appendix Figure 2-4As shown, the guide post 501 is provided with a limiting boss 509 for limiting the locking member 504; the limiting boss 509 is provided with an adaptation groove 510 that matches the conical unlocking block 502; both the upper and lower surfaces of the conical unlocking block 502 are conical structures; when the conical unlocking block 502 moves upward along the guide post 501, the conical structure on the conical unlocking block 502 is inserted into the adaptation groove 510 on the limiting boss 509 and assembled with the limiting boss 509. At this time, the guide post 501 no longer has the limiting boss 509 for limiting the locking member 504, and cannot limit the locking member 504, thereby unlocking the locking member 504, which facilitates the disassembly of the lower support frame 3 and the upper fixed cover, and facilitates the replacement of the screen.

[0023] See appendix Figure 2 As shown, the lower support frame 3 is also provided with a guide groove 303 for guiding the drive rod 503 on the guide column 501, a limiting platform 304 for limiting the guide column 501, and a positioning platform 306 for positioning the screen 2; the lower support frame 3 is also provided with an annular base plate 305 for limiting the bottom of the guide column 501 by screws; by using the annular base plate 305 to limit the guide column 501, the guide column 501 is prevented from falling.

[0024] In the process of using this utility model, the screen 2 is installed on the lower support frame 3 by positioning it on the positioning table. Then, the upper fixing cover 4 is installed on the lower support frame 3. The guide post 501 is installed in the assembly guide groove 301 of the upper fixing cover 4. The locking member 504 contacts the guide post 501. The guide post 501 squeezes the locking member 504, causing the locking member 504 to move backward while the spring 507 contracts. When the limiting boss 509 on the guide post 501 moves to the locking member 504, the locking member 504 is no longer squeezed by the guide post 501 and returns to its original position due to the elasticity of the spring 507. One end of the locking member 504 is pushed to the limiting boss 509 of the guide post 501, and the limiting boss 509 limits it, fixing the screen 2 between the upper fixing cover 4 and the lower support frame 3. When replacement is needed, the drive rod 503 is taken out to push the guide post 501 upward. The second spring 306 is compressed, and the guide post 501 drives the conical unlocking block 502 to move upward. When the locking member 504 comes into contact with the conical unlocking block 502, it is squeezed back by the conical unlocking block 502. The locking member 504 moves backward while the spring 507 contracts until it is at the bottom of the conical unlocking block 502. Then, it is reset by the elasticity of the spring 507. Then, the drive rod 503 is released, the guide post 501 moves downward, and the locking member 504 pushes the conical unlocking block 502 to move upward along the guide post 501, so that the conical unlocking block 502 and the upper limit boss of the guide post 501 are assembled. As the guide post 501 continues to move downward, the conical unlocking block 502 and the guide post 501 continue to squeeze the locking member 504 until the locking member 504 no longer comes into contact with the locking member 504. At this time, the upper fixed cover 4 can be directly removed from the lower support frame 3 to replace the screen 2.

[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A quick-change structure for limestone screens, comprising a screen mounting frame (1) and a screen (2) mounted on the screen mounting frame (1); characterized in that... The screen mounting frame (1) includes a lower support frame (3), an upper fixed cover (4) assembled with the lower support frame (3), and a locking device (5) for quick installation or removal between the lower support frame (3) and the upper fixed cover (4); the locking device (5) includes a guide post (501) movably mounted on the lower support frame (3), a conical unlocking block (502) movably fitted on the guide post (501) for unlocking between the support frame and the upper fixed cover (4), a drive rod (503) for driving the guide post (501) to move, and a locking member (504) movably mounted on the upper fixed cover (4) for limiting the movement between the lower support frame (3) and the upper fixed cover (4).

2. The quick-change structure for limestone screens according to claim 1, characterized in that: The lower support frame (3) is provided with an assembly guide groove (301) adapted to the guide column; the assembly guide groove (301) is provided with an installation groove (302) for installing the locking component (504).

3. The quick-change structure for limestone screens according to claim 2, characterized in that: The locking member (504) is equipped with a guide rod (505) with one end passing through the upper fixed cover (4); the guide rod (505) is provided with a limiting block (506) and a spring (507) is fitted on it; the spring (507) is located between the inner wall of the mounting groove (302) and the locking member (504).

4. The quick-change structure for limestone screens according to claim 3, characterized in that: The locking element (504) is also provided with an arc-shaped surface (508).

5. The quick-change structure for limestone screens according to claim 1, characterized in that: The guide post (501) is provided with a limiting boss (509) for limiting the locking member (504); the limiting boss (509) is provided with an adapter groove (510) that is adapted to the conical unlocking block (502).

6. The quick-change structure for limestone screens according to claim 5, characterized in that: The upper and lower surfaces of the cone-shaped unlocking block (502) are both cone-shaped.

7. The quick-change structure for limestone screens according to claim 1, characterized in that: The lower support frame (3) is also provided with a guide groove (303) for guiding the drive rod (503) on the guide column (501) to limit the guide column (501), a limiting platform (304) for limiting the guide column (501), and a positioning platform (306) for positioning the screen (2).

8. The quick-change structure for limestone screens according to claim 7, characterized in that: The lower support frame (3) is also equipped with an annular base plate (305) that limits the bottom of the guide column (501).

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