Double-layer screen structure capable of being replaced for use

Abstract

The utility model discloses a double-layer screen structure capable of being mutually replaced for use, which belongs to the technical field of screen structures and comprises an upper screen frame and a lower screen frame, an upper screen and a lower screen are detachably inserted into the upper screen frame and the lower screen frame respectively, a connecting cover frame is used for connecting the upper screen frame and the lower screen frame into a whole, and clamping grooves are formed in two sides of the upper screen and two sides of the lower screen respectively. Corresponding clamping locking mechanisms are arranged on the two sides of the upper net frame and the two sides of the lower net frame and used for being clamped into the clamping grooves. According to the technical scheme, the screen is connected with the screen frame in an inserted mode, in order to prevent the screen from slipping off from the screen frame, a clamping and locking mechanism is arranged and used for clamping a locking groove in the middle of the screen to play a limiting role, in addition, the four corners of the screen and the four corners of the screen frame are connected through locking inserting bolts, and the limiting measure is simple in connection and can be rapidly switched between the working state and the failure state. And therefore, the connection between the screen and the screen frame has good detachability, and the screen can be conveniently disassembled and replaced or the double-layer screen can be conveniently replaced for use.

Description

Technical Field

[0001] This utility model relates to the field of screen structure technology, specifically a double-layer screen structure that can be used interchangeably. Background Technology

[0002] Double-layer screen structures have wide applications in various fields, and their design principles and characteristics vary. A double-layer vibrating screen is a commonly used screening device, its internal screen structure consisting of two layers of screens, typically used for multi-stage screening of materials. Due to its unique screening and filtration performance, the double-layer screen structure plays a vital role in many fields. With continuous technological advancements and the expansion of application areas, the design and application of double-layer screen structures will become more diversified and efficient.

[0003] The utility model disclosed in announcement number CN219745469U is a double-layer screen structure. In this double-layer screen structure, the sliding rod slides upward, causing the retaining ring to slide upward and compress the spring. The spring pushes the retaining ring and the sliding rod to slide downward, automatically resetting them. This causes the sliding rod to slide up and down, which in turn causes the vibrating ball outside the fixed shaft to slide up and down, vibrating the surface of the double-layer screen. This vibration causes the two layers of the screen to vibrate, shaking off the diamond powder on the surface of the double-layer screen, preventing the diamond powder from adhering to the surface of the double-layer screen, and improving the efficiency of the double-layer screen in screening diamond powder.

[0004] In the above structure, the double-layer screen part is highly integrated with the overall structure, making it difficult to easily and quickly disassemble and assemble a single screen. This results in a cumbersome operation when a screen is partially damaged or needs to be replaced due to the screen aperture size. It also makes it difficult to interchange the two screens to meet different screening needs. Therefore, to address the above problems, a double-layer screen structure that can be interchanged is proposed. Utility Model Content

[0005] The technical problem this utility model aims to solve is to provide a double-layer screen structure that can be used interchangeably. This screen structure includes an upper frame and a lower frame, with an upper screen and a lower screen respectively inserted into each. The combination of the two provides a dual screening function. To prevent the screen from slipping off the frame, a locking mechanism is provided to engage the locking groove in the middle of the screen, thus limiting its position. Furthermore, the screen and frame are connected at their four corners by locking bolts, further improving the stability of the connection. These limiting measures are simple to connect and can quickly switch between effective and ineffective states, thus ensuring good detachability between the screen and the frame. This facilitates the disassembly and replacement of the screen or the replacement of the double-layer screen, meeting different usage needs. This solves the technical problem in existing technologies where the double-layer screen is highly integrated with the overall structure, making it difficult to easily and quickly disassemble and assemble individual screens, thus hindering the interchangeability of the two screens and failing to meet different screening requirements.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A double-layer screen structure that can be used interchangeably includes a screen frame with an upper screen detachably inserted inside and a baffle plate installed on its upper end; a lower screen frame with a lower screen detachably inserted inside; and a connecting frame for connecting the upper and lower screen frames into one unit. Both the upper and lower screens have snap-fit ​​grooves on both sides, and both the upper and lower screen frames have corresponding snap-fit ​​locking mechanisms on both sides for engaging with the snap-fit ​​grooves. Locking grooves are provided at the four corners of both the upper and lower screens, and corresponding locking grooves are provided at the upper and lower screen frames. The structure includes a through-hole insertion mechanism. With locking bolts, in the above structure, the screen and the frame are connected by a plug. To prevent the screen from slipping off the frame, a locking mechanism is provided to lock the locking groove in the middle of the screen, which serves as a limit. In addition, the screen and the frame are connected at the four corners by locking bolts, which can further improve the stability of the connection between the two. The above limiting measures are simple to connect and can quickly switch between being effective and ineffective, thus making the connection between the screen and the frame have good detachability. This makes it easy to disassemble and replace the screen or replace the double-layer screen to meet different usage needs.

[0008] In one possible implementation, the upper and lower screens have the same structure, both including a screen frame with a mesh sheet fixedly installed inside. The screen frame has snap-fit ​​grooves on both sides and locking grooves at the four corners. The screen frame is used to wrap the four sides of the mesh sheet, so that the mesh sheet can fit tightly with the installation structure. At the same time, the screen frame also provides the necessary structural foundation for the setting of related mating structures.

[0009] In one possible implementation, the upper and lower screen frames have the same structure, both including a frame with an internal mounting groove matching the size of the screen frame, and mating grooves with the same width as the snap-fit ​​groove on both sides of the frame. The mounting grooves provide the necessary structural foundation for the plug-in connection between the screen and the screen frame.

[0010] In one possible implementation, the locking mechanism includes a guide rod fixedly connected to the frame, on which a connecting plate is slidably sleeved. An insertion block matching the size of the locking groove is fixedly connected to the inner side of the connecting plate. When the screen frame is inserted into the mounting groove, the connecting plate slides inward to insert the insertion block into the locking groove, thereby fixing the screen frame and preventing it from sliding during the screening process.

[0011] In one possible implementation, the guide rod is fitted with a return spring, and a circular plate is fixedly connected to the outer end of the guide rod. The two ends of the return spring abut against the circular plate and the connecting plate, respectively. The return spring can apply a pushing force to the connecting plate, so that the plug-in block provided on it always tends to be inserted into the locking groove, which can prevent the plug-in block from slipping out during the screening process and causing the locking function to fail. In addition, a pull rod is fixedly provided on the outer side of the connecting plate, which makes it easy for the user to pull the connecting plate.

[0012] In one possible implementation, the frame has embedded slots at its four corners corresponding to the locking slots, in which magnetic rings are embedded and connected, and the locking bolts are made of iron material. Based on the above technical solution, the magnetic rings can apply an adsorption force to the locking bolts, so that they are adsorbed and fixed, preventing them from slipping out during the screening process and losing their locking function.

[0013] In one possible implementation, the connecting cover frame includes a frame body with connecting ears fixedly provided on both its upper and lower end faces. The frame body is bolted to the frame through the connecting ears, and several reinforcing ribs are fixedly provided on the outer wall of the frame body. The above-mentioned structural form can connect the upper and lower screening structures into a whole, which is convenient for external driving equipment to drive its overall movement.

[0014] In one possible implementation, the frame has a disassembly opening at its front end, and the screen frame has a handle fixedly installed at its front end, which facilitates the removal of the screen structure.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] The screen structure includes an upper frame and a lower frame, with an upper screen and a lower screen respectively inserted into each. The combination of the two provides a dual screening function. To prevent the screen from slipping off the frame, a locking mechanism is provided to lock the screen in the middle of the screen, thus limiting its position. In addition, the screen and the frame are connected at the four corners by locking bolts, which further improves the stability of the connection. The above-mentioned limiting measures are simple to connect and can quickly switch between effective and ineffective, thus making the connection between the screen and the frame highly detachable. This allows for easy disassembly and replacement of the screen or replacement of the double-layer screen to meet different usage needs. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structural configuration of this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view at point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged view at point B;

[0023] Figure 6 This is a schematic diagram of the connecting cover frame structure of this utility model.

[0024] In the diagram: 11. Grid frame; 12. Lower grid frame; 101. Frame; 102. Mounting slot; 103. Disassembly opening; 104. Mating slot; 21. Upper screen; 22. Lower screen; 201. Screen frame; 202. Screen sheet; 203. Locking slot; 204. Snap-fit ​​slot; 3. Connecting cover frame; 31. Frame body; 32. Connecting ear; 33. Reinforcing rib; 4. Baffle plate; 5. Snap-fit ​​locking mechanism; 51. Guide rod; 52. Connecting plate; 53. Insert block; 54. Pull rod; 55. Return spring; 61. Magnetic ring; 62. Locking bolt. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 - Figure 4 As shown, this embodiment provides a double-layer screen structure that can be used interchangeably, including a screen frame 11, inside which an upper screen 21 is detachably inserted and a baffle plate 4 is installed on its upper end face; a lower screen frame 12, inside which a lower screen 22 is detachably inserted; and a connecting frame 3, used to connect the screen frame 11 and the lower screen frame 12 into one unit. Both the upper screen 21 and the lower screen 22 have snap-fit ​​grooves 204 on both sides, and both the screen frame 11 and the lower screen frame 12 have corresponding snap-fit ​​locking mechanisms 5 on both sides, used to snap into the snap-fit ​​grooves 204. Locking grooves 203 are provided at the four corners of both the upper screen 21 and the lower screen 22. Simultaneously, the screen frame 11 and the lower screen frame... A locking groove 203 is provided at the corresponding position of 12, through which a locking bolt 62 is inserted. In the above structure, the screen and the screen frame are connected by insertion. In order to prevent the screen from slipping off the screen frame, a locking mechanism 5 is provided to lock the locking groove 203 in the middle of the screen, which plays a limiting role. In addition, the four corners of the screen and the screen frame are connected by locking bolts 62, which can further improve the stability of the connection between the two. The above limiting measures are simple to connect and can quickly switch between effective and ineffective, thereby making the connection between the screen and the screen frame have good detachability, which can facilitate the disassembly and replacement of the screen or the replacement of the double-layer screen to meet different usage needs.

[0027] The upper screen 21 and the lower screen 22 have the same structure, both including a screen frame 201, inside which a mesh sheet 202 is fixedly installed. The mesh frame 201 has snap-fit ​​grooves 204 on both sides and locking grooves 203 at the four corners. The screen frame 201 is used to wrap the four sides of the mesh sheet 202, so that the mesh sheet 202 can fit tightly with the installation structure. At the same time, the screen frame 201 also provides the necessary structural foundation for the setting of related mating structures. In addition, the upper frame 11 and the lower frame 12 have the same structure, both including a frame 101, inside which there is an installation groove 102 that matches the size of the screen frame 201. The frame 101 has mating grooves 104 on both sides that match the width of the snap-fit ​​grooves 204. The installation grooves 102 provide the necessary structural foundation for the insertion connection between the screen and the frame.

[0028] like Figure 5As shown, the locking mechanism 5 includes a guide rod 51 fixedly connected to the frame 101, on which a connecting plate 52 is slidably sleeved. An insertion block 53, matching the size of the locking groove 204, is fixedly connected to the inner side of the connecting plate 52. When the screen frame 201 is inserted into the mounting groove 102, the connecting plate 52 slides inward, causing the insertion block 53 to insert into the locking groove 204, thereby fixing the screen frame 201 and preventing it from sliding during screening. Additionally, the guide rod 51 is covered with a composite... The spring 55 is positioned, and a circular plate is fixedly connected to the outer end of the guide rod 51. The two ends of the return spring 55 abut against the circular plate and the connecting plate 52 respectively. The return spring 55 can apply a pushing force to the connecting plate 52, so that the plug-in block 53 provided on it always maintains the tendency to be plugged into the locking groove 204. This can prevent the plug-in block 53 from slipping out during the screening process and causing the locking function to fail. In addition, a pull rod 54 is fixedly provided on the outer side of the connecting plate 52. This structure makes it easy for the user to pull the connecting plate 52.

[0029] like Figure 4 As shown, the frame 101 has embedded grooves at the four corners corresponding to the locking grooves 203, in which magnetic rings 61 are embedded and connected, and the locking bolts 62 are made of iron material. Based on the above technical solution, the magnetic rings 61 can apply an adsorption force to the locking bolts 62, so that they are adsorbed and fixed, preventing them from slipping out during the screening process and losing their locking function.

[0030] like Figure 6 As shown, the connecting cover frame 3 includes a frame body 31, with connecting ears 32 fixedly provided on both its upper and lower end faces. The frame body 31 is bolted to the frame 101 through the connecting ears 32, and several reinforcing ribs 33 are fixedly provided on the outer wall of the frame body 31. The above structure can connect the upper and lower screening structures into a whole, which is convenient for external driving equipment to drive its overall movement.

[0031] like Figure 3 - Figure 4 As shown, the frame 101 has a disassembly opening 103 at the front end, and the screen frame 201 has a handle fixedly installed at the front end. The above structure makes it easy to pull out the screen structure.

[0032] The working principle and usage process of this utility model:

[0033] The screen structure includes an upper frame 11 and a lower frame 12, with an upper screen 21 and a lower screen 22 respectively inserted into them. The combination of the two serves as a dual screening function. To prevent the screen from slipping off the frame, a locking mechanism 5 is provided to lock the locking groove 203 in the middle of the screen, thus limiting its position. In addition, the screen and the frame are connected at the four corners by locking bolts 62, which further improves the stability of the connection between the two. The above-mentioned limiting measures are simple to connect and can quickly switch between effective and ineffective, thus making the connection between the screen and the frame highly detachable. This allows for easy disassembly and replacement of the screen or replacement of the double-layer screen to meet different usage needs.

[0034] The working principle of the locking mechanism 5 is as follows: when the screen frame 201 is inserted into the mounting groove 102, the connecting plate 52 slides inward so that the insertion block 53 is inserted into the locking groove 204, thereby fixing the screen frame 201 and preventing it from sliding during the screening process. In addition, the return spring 55 can apply a pushing force to the connecting plate 52 so that the insertion block 53 on it always maintains the tendency to be inserted into the locking groove 204, which can prevent the insertion block 53 from sliding out during the screening process and causing the locking effect to fail.

[0035] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A double-layer screen structure that can be used interchangeably, characterized in that, include: The mesh rack (11) has an upper screen (21) that can be detachably inserted inside, and a baffle plate (4) is installed on its upper end face; The lower screen frame (12) has a detachable lower screen (22) inside; Connecting frame (3) is used to connect the network frame (11) and the lower network frame (12) into one unit; Both sides of the upper screen (21) and the lower screen (22) are provided with snap-fit ​​grooves (204), and both sides of the net frame (11) and the lower net frame (12) are provided with corresponding snap-fit ​​locking mechanisms (5), which are used to snap into the snap-fit ​​grooves (204). Locking slots (203) are provided at the four corners of the upper screen (21) and the lower screen (22). At the same time, locking slots (203) are provided at the corresponding positions of the upper screen frame (11) and the lower screen frame (12), wherein locking bolts (62) are inserted through them.

2. The double-layer screen structure that can be used interchangeably according to claim 1, characterized in that: The upper screen (21) and the lower screen (22) have the same structure, both including a screen frame (201) with a mesh sheet (202) fixedly installed inside. The snap-fit ​​groove (204) is opened on both sides of the screen frame (201), and the locking groove (203) is opened at the four corners of the screen frame (201).

3. The double-layer screen structure that can be used interchangeably according to claim 2, characterized in that: The upper frame (11) and the lower frame (12) have the same structure, both including a frame (101), which has an installation groove (102) inside that matches the size of the screen frame (201), and the frame (101) has a matching groove (104) on both sides that matches the width of the snap-fit ​​groove (204).

4. The double-layer screen structure that can be used interchangeably according to claim 3, characterized in that: The locking mechanism (5) includes a guide rod (51) fixedly connected to the frame (101), on which a connecting plate (52) is slidably sleeved, and an insertion block (53) matching the size of the locking groove (204) is fixedly connected to the inner side of the connecting plate (52).

5. The double-layer screen structure that can be used interchangeably according to claim 4, characterized in that: The guide rod (51) is fitted with a return spring (55), and a circular piece is fixedly connected to the outer end of the guide rod (51). The two ends of the return spring (55) abut against the circular piece and the connecting plate (52) respectively. In addition, a pull rod (54) is fixedly provided on the outer side of the connecting plate (52).

6. The double-layer screen structure that can be used interchangeably according to claim 3, characterized in that: The frame (101) has embedded slots at its four corners that correspond to the locking slots (203), wherein a magnetic ring (61) is embedded therein, and the locking bolt (62) is made of iron material.

7. The double-layer screen structure that can be used interchangeably according to claim 3, characterized in that: The connecting cover frame (3) includes a frame (31), with connecting ears (32) fixedly provided on both its upper and lower end faces. The frame (31) is bolted to the frame (101) through the connecting ears (32), and a number of reinforcing ribs (33) are fixedly provided on the outer wall of the frame (31).

8. The double-layer screen structure that can be used interchangeably according to claim 3, characterized in that: The frame (101) has a disassembly opening (103) at the front end, and the screen frame (201) has a handle fixedly installed at the front end.

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