Multi-stage screen frame

Abstract

The utility model discloses a multi-stage screen frame, relates to the technical field of vibrating screen equipment, and aims to solve the problem that a screen mesh on an existing screen frame can be maintained only after the whole screen frame is detached due to the fact that the maintenance process of the screen mesh on the existing screen frame is often more. The screen frame and the screen mesh are connected through a connecting mechanism, a groove is formed in the outer wall of the screen frame, and a positioning mechanism is slidably connected in the groove; a bottom plate is arranged on the inner wall of a screen frame, a first plate and a second plate hinged to the bottom plate are matched with a clamping head at the bottom of a screen, under the action of a first spring, the first plate and the second plate are turned over oppositely, the clamping head is limited and clamped, a first bottom block and a second bottom block are matched with a positioning mechanism, and the using state of the first plate and the using state of the second plate are limited; compared with an existing screen fixing mode, the screen fixing device is convenient and fast to install and maintain according to the design scheme.

Description

TECHNICAL FIELD

[0001] The utility model relates to vibrating screen equipment technical field, especially a multistage formula screen frame. BACKGROUND

[0002] The multistage formula screen frame is a high-efficiency screening equipment, and is suitable for materials needing fine classification. The multistage formula screen frame can perform multistage screening on the materials at one time through a multilayer screen structure, thereby improving screening efficiency and product quality. The existing installation mode between the screen and the screen frame is to extrude the screen up and down between the bottom frame and the top frame, so that the screen is fixed by using a clasp ring. Therefore, it is more troublesome to replace the screen in the screen frame during subsequent maintenance.

[0003] Therefore, the application provides a multistage formula screen frame to meet the needs. UTILITY MODEL CONTENTS

[0004] The application aims to provide a multistage formula screen frame, and aims to solve the problem that the screen on the existing screen frame has many processes during maintenance operation and the screen can be maintained only after the screen frame is completely disassembled.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a multistage formula screen frame, comprising a base, a screen frame and a screen, a plurality of screen frames are installed on the base, and the screen is installed on the screen frame, characterized in that: the screen frame and the screen are connected through a connecting mechanism, and a recess is arranged on the outer wall of the screen frame, and a positioning mechanism is slidably connected in the recess.

[0006] The connecting mechanism comprises a clamping head, a bottom plate, a first spring, a first plate, a second plate and an extension plate. The clamping head is arranged at the bottom of the screen. The bottom plate is arranged in the screen frame. The first plate and the second plate are hingedly connected to the bottom plate. The first plate and the second plate are rotationally connected to the same rotating shaft, and the opposite surfaces are arc-shaped. The extension plate is arranged on the outer wall of the first plate and the second plate. The extension plate and the bottom plate are connected through the first spring. The first plate, the second plate and the clamping head are adapted to each other.

[0007] Preferably, the free ends of the first plate and the second plate are provided with rounded corners. Through the design of the rounded corners, the friction force of the clamping head when inserted into the first plate and the second plate is reduced.

[0008] Preferably, the first plate is a convex arc plate, the second plate is a concave arc plate, and the ends of the first plate and the second plate are hingedly connected.

[0009] Preferably, the positioning mechanism comprises a first bottom block, a second bottom block, a limiting plate and a pull rod, the first bottom block is arranged at the bottom of the first plate, the second bottom block is arranged at the bottom of the second plate, a through hole is arranged on the bottom plate, the limiting plate is slidably connected in the through hole, the outward end of the limiting plate is located in the groove, the inner end of the limiting plate is provided with a limiting groove, the limiting groove is matched with the first bottom block and the second bottom block, the pull rod is arranged on the top surface of the limiting plate, and a limiting mechanism is arranged in the groove and connected with the limiting plate.

[0010] Preferably, the limiting mechanism comprises a second spring and a positioning head, the bottom surface of the groove is provided with an expansion groove, the positioning head is slidably connected in the expansion groove, the bottom surface of the positioning head is connected with the expansion groove through the second spring, the bottom surface of the limiting plate is provided with a positioning groove, the positioning groove is matched with the positioning head, and the positioning head is semispherical.

[0011] In conclusion, the technical effects and advantages of the utility model are as follows:

[0012] In the utility model, the bottom plate arranged on the inner wall of the screen frame, the first plate and the second plate hingedly connected on the bottom plate and cooperating with the clamping head at the bottom of the screen mesh, under the action of the first spring, the first plate and the second plate are reversely turned towards each other, the clamping head is limited and clamped, and the first bottom block and the second bottom block cooperate with the positioning mechanism to limit the use state of the first plate and the second plate, so that the screen mesh is quickly installed, and compared with the prior screen mesh fixing mode, the design scheme is convenient and fast in installation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the screen frame of the utility model;

[0016] Figure 3 It is an enlarged structural schematic view of A of the utility model;

[0017] Figure 4 It is a structural schematic view of the screen mesh of the utility model;

[0018] Figure 5The utility model discloses a screen frame section structure schematic diagram for the utility model discloses a screen frame section structure schematic diagram.

[0019] Figure 6 The utility model discloses a B place amplification structure schematic diagram for the utility model discloses a B place amplification structure schematic diagram.

[0020] Figure 7 The utility model discloses a connecting mechanism explosion structure schematic diagram for the utility model discloses a connecting mechanism explosion structure schematic diagram.

[0021] Figure 8 The utility model discloses a connecting mechanism structure schematic diagram for the utility model discloses a connecting mechanism structure schematic diagram.

[0022] In the drawing: 1, base; 2, screen frame; 21, recess; 22, telescopic slot; 3, screen; 4, clamp; 5, bottom plate; 51, perforation; 6, no. 1 spring; 7, no. 1 plate; 8, no. 2 plate; 9, extension plate; 10, no. 1 bottom block; 11, no. 2 bottom block; 12, limiting plate; 121, positioning groove; 13, limiting groove; 14, pull rod; 15, no. 2 spring; 16, positioning head. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0024] Embodiment: refer to Figures 1-8 The utility model discloses a screen frame section structure schematic diagram for the utility model discloses a screen frame section structure schematic diagram.

[0025] As an embodiment in the present embodiment, the connecting mechanism: a clamping head 4 is arranged at the bottom of the screen 3, a bottom plate 5 is arranged on the inner wall of the screen frame 2, the bottom plate 5 is four groups in total, arranged in a circular array on the inner wall of the screen frame 2, and a groove is arranged on the top surface of the bottom plate 5, a rotating shaft is rotatably connected in the groove, a first plate 7 and a second plate 8 are both rotatably connected on the rotating shaft, and the first plate 7 and the second plate 8 are respectively convex-shaped arc plates and concave-shaped arc plates, the first plate 7 and the second plate 8 are matched, and the space formed by the first plate 7 and the second plate 8 is matched with the clamping head 4, so that when installed, the first plate 7 and the second plate 8 can hold the clamping head 4, and an extension plate 9 is arranged on the outer wall of the first plate 7 and the second plate 8, and a first spring 6 is press-fitted between the extension plate 9 and the bottom plate 5, the first spring 6 is used to provide a relative overturning force for the first plate 7 and the second plate 8; the above structure realizes the quick assembly of the screen 3 on the screen frame 2.

[0026] As an embodiment in the present embodiment, in order to improve the smoothness of the clamping head 4 entering between the first plate 7 and the second plate 8, the free ends of the first plate 7 and the second plate 8 are both provided with a round corner, reducing the friction when the clamping head 4 is inserted.

[0027] As an embodiment in the present embodiment, the positioning mechanism: a through hole 51 is arranged on the bottom plate 5, a limiting plate 12 is slidably connected in the through hole 51, and the limiting plate 12 penetrates into the groove 21, a pull rod 14 is arranged on the top surface of the limiting plate 12 (in the groove 21), the pull rod 14 is used to pull the limiting plate 12 to slide in the groove 21 and the through hole 51, a limiting groove 13 is arranged at the inner end of the limiting plate 12, a first bottom block 10 and a second bottom block 11 are respectively arranged at the bottom of the first plate 7 and the second plate 8, the first bottom block 10 and the second bottom block 11 are arranged in a staggered manner, and the limiting groove 13 is matched with the first bottom block 10 and the second bottom block 11, when the limiting plate 12 is pushed inward, the limiting groove 13 limits the state of the first bottom block 10 and the second bottom block 11, avoiding the loosening of the clamping head 4 due to vibration during the operation of the vibrating screen, and causing the screen 3 to fall off.

[0028] As an embodiment in the present embodiment, the limiting mechanism: in order to avoid the limiting plate 12 from sliding out of the through hole 51 and the groove 21 during use, a telescopic groove 22 is arranged on the inner bottom surface of the groove 21, a positioning head 16 is slidably connected in the telescopic groove 22, the positioning head 16 is semispherical, and the bottom of the positioning head 16 is connected with the telescopic groove 22 through a second spring 15, a positioning groove 121 is arranged on the bottom surface of the limiting plate 12, the positioning groove 121 is matched with the positioning head 16, and when the limiting groove 13 limits the first bottom block 10 and the second bottom block 11, the positioning head 16 is inserted into the positioning groove 121 under the action of the second spring 15, achieving the limiting purpose.

[0029] The utility model relates to a kind of mechanical and electrical connection for the conventional means of skilled in the art, can be obtained by limited test technical inspiration, belong to public common knowledge.

[0030] When completing maintenance task, the above operation is operated again from back to front, i.e.

[0031] The mechanical and electrical connection of the utility model is the conventional means of skilled in the art, which can be obtained by limited test technical inspiration, and belongs to public common knowledge.

[0032] Components not described in detail in the present document are prior art.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A multi-stage screen frame, comprising a base (1) and a screen frame (2), screen mesh (3), a plurality of screen frames (2) are installed on the base (1), and screen mesh (3) is installed on the screen frame (2), characterized in that: The screen frame (2) is connected with the screen mesh (3) through a connecting mechanism, and a recess (21) is arranged on the outer wall of the screen frame (2), and a positioning mechanism is slidably connected in the recess (21); The connecting mechanism comprises a clamping head (4), a bottom plate (5), a first spring (6), a first plate (7), a second plate (8) and an extension plate (9). The clamping head (4) is arranged at the bottom of the screen mesh (3), the bottom plate (5) is arranged in the screen frame (2), the first plate (7) and the second plate (8) are hingedly connected to the bottom plate (5), the first plate (7) and the second plate (8) are rotationally connected to the same rotating shaft and the opposite surfaces are arc-shaped, the extension plate (9) is arranged on the outer wall of the first plate (7) and the second plate (8), the extension plate (9) is connected with the bottom plate (5) through the first spring (6), and the first plate (7) and the second plate (8) are matched with the clamping head (4).

2. A multi-stage screen frame according to claim 1, wherein: The free ends of the first plate (7) and the second plate (8) are provided with round corners.

3. A multi-stage screen frame according to claim 1, wherein: The first plate (7) is a convex arc plate, the second plate (8) is a concave arc plate, and the ends of the first plate (7) and the second plate (8) are hingedly connected.

4. A multi-stage screen frame according to claim 1, wherein: The positioning mechanism comprises a first bottom block (10), a second bottom block (11), a limiting plate (12) and a pull rod (14). The first bottom block (10) is arranged at the bottom of the first plate (7), the second bottom block (11) is arranged at the bottom of the second plate (8), a through hole (51) is arranged on the bottom plate (5), the limiting plate (12) is slidably connected in the through hole (51), the outward end of the limiting plate (12) is located in the recess (21), the inner end of the limiting plate (12) is provided with a limiting groove (13), the limiting groove (13) is matched with the first bottom block (10) and the second bottom block (11), the pull rod (14) is arranged on the top surface of the limiting plate (12), a limiting mechanism is arranged in the recess (21), and the limiting mechanism is connected with the limiting plate (12).

5. A multi-stage screen frame according to claim 4, wherein: The limiting mechanism comprises a second spring (15) and a positioning head (16). The bottom surface of the recess (21) is provided with an expansion groove (22), the positioning head (16) is slidably connected in the expansion groove (22), the bottom surface of the positioning head (16) is connected with the expansion groove (22) through the second spring (15), a positioning groove (121) is arranged on the bottom surface of the limiting plate (12), the positioning groove (121) is matched with the positioning head (16), and the positioning head (16) is semispherical.

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