A spool tensioning screen structure

Abstract

The utility model discloses a reel type tightening screen structure relates to screen field, aims at solving the problem of too many procedures, inconvenient installation and more cooperation between parts in prior art when installing screen, and the problem of easy loosening in long time work, adopts the technical scheme, airflow screen main part includes the casing, and the casing has the mesh cage inside, and the mesh cage rotates and connects the wind wheel inside, and the wind wheel connects drive mechanism, and the mesh cage is wrapped screen on, and the screen has the chuck, and the mesh cage outside has the tight mechanism, and the tight mechanism is inserted with chuck, the utility model discloses through the screen is wrapped to the mesh cage, and through the tight mechanism is carried chuck and rotates, makes the screen tightly wrap on the mesh cage, realizes the fastening of screen, and through the setting of ratchet wheel and pawl, can prevent the screen from accidental loosening in the working process, thereby realizes the fastening and anti -loose of screen.

Description

Technical Field

[0001] This utility model relates to the field of screen technology, specifically a roll-type tensioning screen structure. Background Technology

[0002] Chinese patent CN103658003A discloses a single-section detachable screen cylinder. The technical solution includes cylindrical screens respectively installed in the fixing grooves of the first screen frame and the second screen frame, and screws respectively passing through the side holes of the first screen frame and the second screen frame, and being tightened by wire tubes.

[0003] The shortcomings of the existing technology are that there are too many steps in installing the screen, making installation inconvenient, and there are many parts that need to be fitted together. Over time, these parts may loosen, which will affect the normal operation of the equipment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a roll-type tensioning screen structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model discloses a roll-type tensioning screen structure, the technical solution of which includes an airflow screen body. The airflow screen body includes a shell, inside which is a mesh cage, a fan wheel is rotatably connected inside the mesh cage, the fan wheel is connected to a drive mechanism, a screen is wrapped around the mesh cage, a clamp is on the screen, and a tensioning mechanism is on the outside of the mesh cage, the tensioning mechanism being inserted into the clamp.

[0006] As a preferred embodiment of this utility model, the housing has an observation window and the bottom of the housing has a discharge port.

[0007] As a preferred technical solution of this utility model, the shell has a cover plate on the top, and a feed inlet is opened in the middle of the cover plate.

[0008] As a preferred embodiment of this utility model, the outer side of the mesh cage has multiple limiting blocks, and the screen is placed above the limiting blocks.

[0009] As a preferred technical solution of this utility model, the tensioning mechanism includes a support plate, which is fixed to the upper and lower sides of the mesh cage. A rotating shaft is rotatably connected to the support plate, and the rotating shaft penetrates the cover plate. A ratchet is provided on the rotating shaft above the cover plate, and a pawl is provided on the cover plate. The ratchet and the pawl are connected at the joint.

[0010] As a preferred embodiment of this utility model, a through groove is provided on the rotating shaft, and the chuck is inserted into the through groove.

[0011] As a preferred embodiment of this utility model, there are pressure shafts on both sides of the rotating shaft, and the pressure shafts are fixedly connected between the support plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves the fastening of the screen by wrapping the screen around the mesh cage and rotating the clamp through the tensioning mechanism, so that the screen is tightly wrapped around the mesh cage. Furthermore, the ratchet and pawl prevent the screen from accidentally loosening during operation, thereby achieving the fastening and anti-loosening of the screen. Attached Figure Description

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

[0014] Figure 2 This is an enlarged view of section A of this utility model;

[0015] Figure 3 This is an enlarged view of section B of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the screen structure of this utility model;

[0018] Figure 6 This is an enlarged view of section C of this utility model;

[0019] Figure 7 This is an exploded view of the structure of this utility model;

[0020] Figure 8 This is a cross-sectional view of the rotating shaft of this utility model.

[0021] In the diagram: 1. Main body of the air classifier; 101. Shell; 1011. Observation window; 1012. Discharge port; 102. Cover plate; 103. Feed port; 2. Wire mesh cage; 201. Limiting block; 3. Impeller; 4. Screen; 401. Clamp; 5. Tensioning mechanism; 501. Support plate; 502. Rotating shaft; 5021. Through groove; 503. Ratchet; 504. Pad; 505. Pressure shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] like Figures 1 to 8 As shown, this utility model discloses a roll-type tensioning screen structure. The technical solution adopted includes an airflow screen body 1, which includes a shell 101 with an observation window 1011, a discharge port 1012 at the bottom, a cover plate 102 at the top, and a feed inlet 103 in the middle of the cover plate 102. Inside the shell 101 is a mesh cage 2, and outside the mesh cage 2 are multiple limiting blocks 201, which are L-shaped and used to support the screen 4. The screen 4 is placed above the limiting blocks 201. A windmill 3 is rotatably connected inside the mesh cage 2, and the windmill 3 is connected to a drive mechanism, which is a drive motor. The screen 4 is wrapped around the mesh cage 2, and the screen 4 has clamps 401. A tensioning mechanism 5 is located outside the mesh cage 2. The structure 5 includes a support plate 501, which is fixed to the upper and lower sides of the wire mesh cage 2. The support plate 501 can also reduce the spillage of material from the gaps in the tensioning mechanism 5. A rotating shaft 502 is rotatably connected to the support plate 501. A through groove 5021 is opened on the rotating shaft 502. The clamp 401 is inserted into the through groove 5021. The rotating shaft 502 penetrates the cover plate 102. There is a ratchet 503 on the rotating shaft 502 above the cover plate 102. A pawl 504 is provided on the cover plate 102. The pawl 504 is rotatably connected to the cover plate 102. There is a torsion spring between the pawl 504 and the cover plate 102. At the junction of the ratchet 503 and the pawl 504, there are pressure shafts 505 on both sides of the rotating shaft 502. The pressure shafts 505 are fixedly connected between the support plates 501. The pressure shafts 505 are used to press the screen 4 onto the wire mesh cage 2. To prevent the gap between the screen 4 and the wire mesh 2 from being too large, the tensioning mechanism 5 is connected to the clamp 401.

[0024] The working principle of this utility model is as follows: When installing the screen 4, first remove the observation window 1011, insert the screen 4 through the observation window 1011 into the housing 101, and wrap it around the wire mesh 2. Place the bottom of the screen 4 on the limiting block 201, then connect the interfaces of the screen 4 together to form a clamp 401. Insert the clamp 401 into the through groove 5021, rotate the ratchet 503 to drive the rotating shaft 502 to rotate, causing the through groove 5021 to rotate, thereby pulling the clamp 401 outward. As the clamp 401 is pulled outward and rotates with the rotating shaft 502, the screen 4 is tightly wrapped around the wire mesh 2, thus achieving the fastening of the screen 4.

[0025] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0026] Components not described in detail in this article are existing technologies.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll-type tensioning screen structure, comprising an airflow screen body (1), characterized in that: The airflow screen body (1) includes a shell (101), inside which is a mesh cage (2), inside which is a fan wheel (3) rotatably connected, and the fan wheel (3) is connected to a drive mechanism. The mesh cage (2) is wrapped with a screen (4), and the screen (4) has a clamp (401). The mesh cage (2) has a tensioning mechanism (5) on the outside, and the tensioning mechanism (5) is inserted into the clamp (401).

2. The roller-type tensioning screen structure according to claim 1, characterized in that: The housing (101) has an observation window (1011) and a discharge port (1012) at the bottom.

3. The roller-type tensioning screen structure according to claim 2, characterized in that: The housing (101) has a cover plate (102) on top, and a feed inlet (103) is opened in the middle of the cover plate (102).

4. The roller-type tensioning screen structure according to claim 1, characterized in that: The cage (2) has multiple limiting blocks (201) on its outer side, and the screen (4) is placed above the limiting blocks (201).

5. The roller-type tensioning screen structure according to claim 3, characterized in that: The tensioning mechanism (5) includes a support plate (501), which is fixed to the upper and lower sides of the wire mesh cage (2). A rotating shaft (502) is rotatably connected to the support plate (501). The rotating shaft (502) penetrates the cover plate (102). A ratchet (503) is on the rotating shaft (502) above the cover plate (102). A pawl (504) is provided on the cover plate (102). The ratchet (503) and the pawl (504) are connected at the joint.

6. The roller-type tensioning screen structure according to claim 5, characterized in that: A through groove (5021) is provided on the rotating shaft (502), and the chuck (401) is inserted into the through groove (5021).

7. The roller-type tensioning screen structure according to claim 6, characterized in that: The rotating shaft (502) has pressure shafts (505) on both sides, and the pressure shafts (505) are fixedly connected between the support plates (501).

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