CN212916545U

CN212916545U - Screen tensioning device

Info

Publication number: CN212916545U
Application number: CN202020243404.4U
Authority: CN
Inventors: 程国富
Original assignee: Shandong Longfeng Flour Co ltd
Current assignee: Shandong Huiren Food Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2021-04-09
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a screen tensioning device, which comprises a fixed ring and a tensioning ring, wherein the fixed ring and the tensioning ring are both in an annular structure and have a certain width, and the fixed ring and the tensioning ring are concentrically arranged and rotationally connected; a plurality of tensioning grooves are uniformly formed in the fixing ring and perpendicular to the axis, and a certain included angle is formed between each tensioning groove and a circle where the outer edge of the fixing ring is located; sliding connection has the tensioning piece in the tensioning groove, both ends all stretch out about the tensioning piece the retainer plate, the edge fixed connection of tensioning piece bottom and screen cloth, tensioning piece top and tensioning ring swivelling joint. The utility model has the effects that the rotation of the tension ring drives the tension block to move along the tension groove, and the tension block moves towards the direction far away from the center of the fixed ring, thereby tensioning the screen; this device convenient operation, and can evenly take-up screen cloth, make every fixed point atress of screen cloth all unanimous.

Description

Screen tensioning device

Technical Field

The utility model relates to a production tool field, more specifically, the utility model relates to a screen cloth straining device.

Background

In agricultural or industrial production, the sieve is a common tool and is usually used for screening grains, sand and the like, and the circular sieve is easy to carry, convenient to use and very widely used in production.

However, no matter the metal screen or the textile screen, the metal screen or the textile screen becomes looser and looser after being used for a long time, so that meshes are enlarged, the screening quality is greatly influenced, and the screen is easy to damage. The existing screen tensioning is usually manual tensioning, and due to the round special structure, the operation is troublesome, and the screening quality is influenced due to the fact that the screen is not flat easily because of uneven force application.

Therefore, a new screen tensioning device is needed that solves the above problems.

Disclosure of Invention

The utility model discloses an aim at solve the taut comparatively difficult problem of current circular sieve screen cloth.

According to one aspect of the utility model, a screen tensioning device is provided, which comprises a fixed ring and a tensioning ring, wherein the fixed ring and the tensioning ring are both in an annular structure and have certain width, and the fixed ring and the tensioning ring are concentrically arranged and rotationally connected; a plurality of tensioning grooves are uniformly formed in the fixing ring and perpendicular to the axis, and a certain included angle is formed between each tensioning groove and a circle where the outer edge of the fixing ring is located; sliding connection has the tensioning piece in the tensioning groove, both ends all stretch out about the tensioning piece the retainer plate, the edge fixed connection of tensioning piece bottom and screen cloth, tensioning piece top and tensioning ring swivelling joint.

Through the scheme, the tensioning block is driven to move along the tensioning groove by the rotation of the tensioning ring, and the tensioning block moves towards the direction far away from the center of the fixed ring, so that the screen is tensioned; this device convenient operation, and can evenly take-up screen cloth, make every fixed point atress of screen cloth all unanimous.

Preferably, the tensioning block is provided with a fixing device, and the fixing device can keep the relative position of the tensioning block and the tensioning groove unchanged.

Through this scheme, taut back is convenient for fix the screen cloth.

Preferably, the fixing device is a fixed elastic sheet, and the side wall of the tensioning groove is provided with a fixed tooth matched with the fixed elastic sheet; the fixing elastic sheet is matched with the fixing teeth, so that the fixing block can only move towards the direction far away from the center of the fixing ring.

Through this scheme, utilize fixed shell fragment auto-lock setting, need not unnecessary operating procedure, easily operation.

Preferably, the fixing teeth are arranged on two side walls of the tensioning groove, and the fixing elastic pieces are arranged on two sides of the fixing block.

Through this scheme, improve fixed effect, prevent the slope of fixed block.

Preferably, the fixing block is elastically connected with a pressing block, pressing sheets are arranged on two sides of the pressing block, the pressing sheets are tightly attached to the bottom of the fixing elastic sheet, and the pressing block can drive the pressing sheets to move along the opening direction of the fixing elastic sheet.

Through this scheme, the removal that utilizes the compact heap can compress tightly fixed shell fragment, makes it press close to tensioning piece both sides to break away from and the cooperation of fixed tooth, make tensioning piece can reverse movement, be convenient for change the screen cloth.

Preferably, the bottom periphery of the tensioning ring is provided with a fixing groove, a clamping block is fixed on the periphery of the fixing ring, and the fixing ring is slidably connected with the fixing groove through the clamping block.

Preferably, the fixture block is fixedly connected with the fixing ring through a bolt; the number of the clamping blocks is consistent with that of the tensioning blocks.

Through the scheme, the fixture block and the fixing ring are of a split structure, so that the fixing ring is convenient to mount; the more the number of the clamping blocks is, the more the stability of the device in use can be kept.

The utility model has the technical effects that the device has simple structure, can conveniently tension the screen mesh of the circular sieve, and can keep the fixed point of the screen mesh uniformly stressed; and the screen cloth is fixed through being connected with the tensioning block, is convenient for change the screen cloth.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a front view structure diagram of a screen tensioning device according to an embodiment of the present invention.

Fig. 2 is a schematic bottom view of a screen tensioning device according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure at a in fig. 2.

Fig. 4 is a schematic structural view of a tensioning block in the screen tensioning device according to the embodiment of the present invention.

Fig. 5 is a cross-sectional view of the tensioning block D-D of fig. 4.

Fig. 6 is a schematic bottom view of a tension ring in a screen tensioning device according to an embodiment of the present invention.

Fig. 7 is a schematic view of a connection structure of a fixing ring and a tension ring in the screen mesh drawing-in device according to the embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Examples

As shown in fig. 1 to 7, the screen tensioning device in this embodiment includes a fixing ring 1100 and a tensioning ring 1200, where the fixing ring 1100 and the tensioning ring 1200 are both in a ring structure and have a certain width, and the fixing ring 1100 and the tensioning ring 1200 are concentrically arranged and rotatably connected; a plurality of tensioning grooves 1110 are uniformly arranged on the fixing ring 1100 and are perpendicular to the axis, and the tensioning grooves 1110 form a certain included angle with a circle where the outer edge of the fixing ring 1100 is located; a tensioning block 1120 is slidably connected in the tensioning groove 1110, the upper end and the lower end of the tensioning block 1120 extend out of the fixing ring 1100, the bottom of the tensioning block 1120 is fixedly connected with the edge of the screen 2000, and the top of the tensioning block 1120 is rotatably connected with the tensioning ring 1200; the bottom of the tension ring 1200 is provided with a mounting hole 1220 matched with the tension block 1120.

With this embodiment, the rotation of the tension ring 1200 drives the tension block 1120 to move along the tension slot 1110, and the tension block 1120 moves away from the center of the fixed ring 1100, thereby tensioning the screen 2000; this device convenient operation, and can evenly take up screen cloth 2000, make every fixed point atress of screen cloth 2000 all unanimous, guarantee that screen cloth 2000's mesh size is unanimous.

In this embodiment or other embodiments, a fixing device is disposed on the tensioning block 1120, and the fixing device can maintain the relative position of the tensioning block 1120 and the tensioning groove 1110. After tensioning, the screen 2000 is convenient to fix and is prevented from rebounding.

In this embodiment or other embodiments, the fixing device is a fixing elastic sheet 1121, and a fixing tooth 1111 matched with the fixing elastic sheet 1121 is disposed on a side wall of the tensioning slot 1110; the fixing elastic sheet 1121 is matched with the fixing teeth 1111, so that the fixing block 1120 can only move in a direction away from the center of the fixing ring 1100. The fixing elastic sheet 1121 is self-locked at a fixed position, so that redundant operation steps are not needed, and the operation is easy.

In this embodiment or other embodiments, the fixing teeth 1111 are disposed on both side walls of the tensioning groove 1110, and the fixing elastic pieces 1121 are disposed on both sides of the fixing block 1120. The fixing effect is improved and the inclination of the fixing block 1120 is prevented.

In this embodiment or other embodiments, a pressing block 1122 is elastically connected to the fixing block 1120, pressing pieces 1123 are disposed on two sides of the pressing block 1122, the pressing pieces 1123 are tightly attached to the bottom of the fixing elastic piece 1121, the pressing block 1122 can drive the pressing pieces 1123 to move along the opening direction of the fixing elastic piece 1121, and the pressing block 1122 in this embodiment is inserted into the tensioning block 1120 and elastically connected by a spring. The fixing elastic sheet 1121 can be pressed by the pressing block 1122 to be close to two sides of the tensioning block 1120, so that the fixing elastic sheet is separated from the fixing teeth 1111, the tensioning block 1120 can move reversely, the screen 2000 can be conveniently loosened, and replacement is facilitated.

In this embodiment or other embodiments, a fixing groove 1210 is formed on the periphery of the bottom of the tension ring 1200, a latch 1300 is fixed on the periphery of the fixing ring 1100, and the fixing ring 1100 is slidably connected to the fixing groove 1210 through the latch 1300. Facilitating disassembly and assembly of the retainer ring 1100.

In this embodiment or other embodiments, the fixture block 1300 is fixedly connected to the fixing ring 1100 by a bolt 1310; the number of the fixture blocks 1300 is the same as that of the tensioning blocks 1120, and the fixture blocks 1300 and the fixing ring 1110 are in a split structure, so that the fixing ring 1100 is convenient to mount; the greater the number of the latch 1300, the more stable the device can be in use.

The device has the technical effects that the device is simple in structure, can conveniently tension the screen of the circular sieve, and can keep the fixed point of the screen uniformly stressed; and the screen cloth is fixed through being connected with the tensioning block, is convenient for change the screen cloth.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The screen tensioning device is characterized by comprising a fixed ring and a tensioning ring, wherein the fixed ring and the tensioning ring are both of annular structures and have certain widths, and the fixed ring and the tensioning ring are concentrically arranged and rotationally connected; a plurality of tensioning grooves are uniformly formed in the fixing ring and perpendicular to the axis, and a certain included angle is formed between each tensioning groove and a circle where the outer edge of the fixing ring is located; sliding connection has the tensioning piece in the tensioning groove, both ends all stretch out about the tensioning piece the retainer plate, the edge fixed connection of tensioning piece bottom and screen cloth, tensioning piece top and tensioning ring swivelling joint.

2. A screen tensioning device as defined in claim 1, wherein the tensioning block is provided with fixing means which are capable of maintaining the relative position of the tensioning block and the tensioning slot constant.

3. The screen tensioning device according to claim 2, wherein the fixing device is a fixing spring, and fixing teeth matched with the fixing spring are arranged on the side wall of the tensioning groove; the fixed shrapnel with the cooperation of fixed tooth makes the tensioning piece only can move towards keeping away from the direction at retainer plate center.

4. The screen tensioning device of claim 3, wherein the fixed teeth are disposed on both sidewalls of the tensioning slot, and the fixed spring is disposed on both sides of the tensioning block.

5. The screen tensioning device as claimed in claim 4, wherein the tensioning block is elastically connected with a pressing block, pressing pieces are arranged on two sides of the pressing block, the pressing pieces are tightly attached to the bottom of the fixed elastic piece, and the pressing block can drive the pressing pieces to move along the opening direction of the fixed elastic piece.

6. The screen tensioning device as claimed in claim 1, wherein the tensioning ring is provided with a fixing groove at the bottom periphery, a block is fixed at the periphery of the fixing ring, and the fixing ring is slidably connected with the fixing groove through the block.

7. The screen tensioning device of claim 6, wherein the latch is fixedly connected to the retaining ring by a bolt; the number of the clamping blocks is consistent with that of the tensioning blocks.