Square screen with replaceable screen for cement flat sample

Abstract

The utility model discloses a screen-replaceable square screen for a cement flat sample, and belongs to the technical field of inspection equipment in cement laboratories. A screen-replaceable square screen for a cement flat sample comprises a screen frame, a screen cover is arranged at the top of the screen frame, a fastening assembly used for fixing the screen frame and the screen cover is arranged between the screen frame and the screen cover, and a mounting frame is detachably arranged at the bottom of the screen frame through first connecting bolts. A screen used for screening materials is arranged in the mounting frame, and the screen is detachably arranged in the mounting frame through a pressing strip and a second connecting bolt; the screen cloth is detachably fixed in the mounting frame through the pressing strips and the second connecting bolts, so that the screen cloth can be replaced only by loosening the second connecting bolts during use, the screen cloth can be repeatedly used, the equipment is conveniently matched with a reciprocating type vibrating screen machine for use, the labor intensity of workers can be reduced, and meanwhile, the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cement laboratory testing equipment, and in particular to a replaceable square sieve for cement flat sample preparation. Background Technology

[0002] When testing cement in a laboratory, the sample needs to be pre-treated by sieving to remove impurities in order to ensure the accuracy of the test. In the existing technology, most samples are sieved using a round square hole manual sieve.

[0003] While the above methods can remove impurities from cement samples, they still have the following drawbacks: 1. The circular manual sieve requires a large amount of labor and is inefficient; 2. The circular manual sieve has a small processing capacity and is difficult to use in conjunction with continuous sample leveling equipment; 3. It generates a lot of dust, which is detrimental to the health of testing personnel; 4. The sieve is disposable and cannot be replaced or reused. Therefore, this application proposes a replaceable square sieve for cement sample leveling. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a replaceable square sieve for cement leveling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A replaceable square sieve for cement leveling includes a sieve frame, a sieve cover at the top of the sieve frame, a fastening assembly for fixing the sieve frame and the sieve cover between the sieve frame and the sieve cover, and a mounting frame detachably provided at the bottom of the sieve frame by a first connecting bolt. A sieve screen for screening materials is provided inside the mounting frame, and the sieve screen is detachably provided inside the mounting frame by a pressure bar and a second connecting bolt.

[0007] As a preferred technical solution of this application, the mounting frame adopts a cover structure, the top of which is detachably set at the bottom of the screen frame by the first connecting bolt, and a second sealing gasket is provided between the mounting frame and the screen frame.

[0008] As a preferred technical solution of this application, the mounting frame is provided with a fitting groove that mates with the first connecting bolt, and the bottom of the screen frame is provided with a first threaded hole that mates with the first connecting bolt.

[0009] As a preferred technical solution of this application, the screen, pressure bar and screen frame are all the same size.

[0010] As a preferred technical solution of this application, the pressure strip, the mounting frame and the screen frame are all provided with a second threaded hole that mates with the second connecting bolt.

[0011] As a preferred technical solution of this application, the fastening assembly includes a hinge seat disposed on the outer wall of the screen frame, a screw rod rotatably connected to the inside of the hinge seat via a pin, and a nut threadedly connected to the outer wall of the screw rod. The screen cover is provided with a through groove that mates with the screw rod, and a gasket is provided between the screen cover and the nut.

[0012] As a preferred technical solution of this application, the top of the sieve cover is provided with a handle.

[0013] Compared with the prior art, this utility model provides a replaceable square sieve for cement leveling, which has the following beneficial effects:

[0014] 1. This cement leveling sample uses a replaceable square screen. The screen is detachably fixed in the mounting frame by pressure bars and second connecting bolts. Therefore, the screen can be replaced by simply loosening the second connecting bolts during use. It can be reused. In addition, this equipment is easy to use with a reciprocating vibrating screen machine, which can reduce the labor intensity of workers and improve work efficiency.

[0015] 2. The cement sample uses a replaceable square sieve. A second sealing gasket is provided between the mounting frame and the sieve frame, which can effectively prevent cement powder from leaking from the connection, ensure the sealing of the sieving process, reduce environmental pollution, and improve the accuracy of the test data.

[0016] 3. The cement sample uses a replaceable square screen with fastening components to fix the screen cover, combined with gaskets to enhance the locking force, to prevent the screen cover from loosening, and to ensure that the screen frame and screen cover fit tightly during the screening process to prevent material from spilling out;

[0017] 4. The cement leveling sample uses a replaceable square sieve. The mounting frame is connected to the sieve frame by the first connecting bolt, and is provided with a fitting groove that matches the first connecting bolt. This ensures the installation connection between the mounting frame and the sieve frame, and also avoids the first connecting bolt from affecting the installation of the sieve. Attached Figure Description

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

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the mounting frame in this utility model.

[0023] In the picture:

[0024] 100. Screen frame; 101. Screen cover; 102. First connecting bolt; 103. Through groove; 104. Handle; 200. Fastening assembly; 201. Hinge seat; 202. Screw; 203. Nut; 204. Gasket; 300. Mounting frame; 301. Second sealing gasket; 302. Fitting groove; 303. First threaded hole; 400. Screen mesh; 401. Pressure strip; 402. Second connecting bolt; 403. Second threaded hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Reference Figure 1-5 A replaceable square sieve for cement leveling includes a sieve frame 100, a sieve cover 101 at the top of the sieve frame 100, and a fastening assembly 200 for fixing the sieve frame 100 and the sieve cover 101 between them. A mounting frame 300 is detachably mounted at the bottom of the sieve frame 100 via a first connecting bolt 102. A sieve screen 400 for screening materials is installed inside the mounting frame 300. The sieve screen 400 is detachably mounted inside the mounting frame 300 via a pressure strip 401 and a second connecting bolt 402. Specifically, the cement material to be screened is placed inside the sieve frame 100, at which point the sieve cover 101 acts as a seal to prevent the material from being sieved. During the screening process, splashing occurs, and then the fastening component 200 securely connects the screen frame 100 and the screen cover 101. Subsequently, it can be screened using a continuous flattening device. Compared with the existing technology of using a circular manual sieve, this method can effectively improve labor efficiency and reduce labor intensity. Furthermore, after screening, the screen 400 can be replaced by loosening the second connecting bolt 402, allowing the equipment to be reused. It should be noted that the surface of the screen frame 100 is coated with water-based paint. Water-based paint can isolate moisture and corrosive substances, extend the life of the screen frame, and at the same time, the coating can reduce the wear of cement particles on the screen frame, keep the surface smooth, and facilitate the cleaning of residual materials.

[0028] Reference Figure 4-5The mounting frame 300 adopts a cover structure, and its top is detachably set at the bottom of the screen frame 100 by the first connecting bolt 102. A second sealing gasket 301 is set between the mounting frame 300 and the screen frame 100. The mounting frame 300 not only facilitates the installation of the screen 400, but also guides the cement being screened, reducing dust dispersion and improving environmental protection. At the same time, the second sealing gasket 301 effectively prevents cement powder from leaking from the connection, ensuring the sealing of the screening process, reducing environmental pollution, and improving the accuracy of the test data.

[0029] The mounting frame 300 has an internal fitting groove 302 that mates with the first connecting bolt 102. The fitting groove 302 ensures the installation connection between the mounting frame 300 and the screen frame 100, and also prevents the first connecting bolt 102 from affecting the installation of the screen 400. The bottom of the screen frame 100 has a first threaded hole 303 that mates with the first connecting bolt 102. The first threaded hole 303 facilitates the fixed connection of the mounting frame 300.

[0030] Reference Figure 4 To facilitate the installation of the screen 400 and the discharge of materials after screening inside the screen frame 100, the screen 400, the pressure bar 401, and the screen frame 100 are all the same size.

[0031] Reference Figure 2 and Figure 4 The pressure strip 401, the mounting frame 300, and the sieve frame 100 are all provided with second threaded holes 403 that cooperate with the second connecting bolts 402. Through the provided second threaded holes 403, the second connecting bolts 402 and the pressure strip 401 can easily press the sieve 400 into the mounting frame 300, so as to facilitate the sieving operation of cement samples. Secondly, the second threaded holes 403 provided on the sieve frame 100 that cooperate with the second connecting bolts 402 improve the stability of the connection of the second connecting bolts 402, making the connection of the sieve 400 pressed into the mounting frame 300 more stable.

[0032] Reference Figure 1-3The fastening assembly 200 includes a hinge seat 201 disposed on the outer wall of the screen frame 100, a screw 202 rotatably connected to the inside of the hinge seat 201 via a pin, and a nut 203 threadedly connected to the outer wall of the screw 202. The screen cover 101 is provided with a through groove 103 that mates with the screw 202. A gasket 204 is provided between the screen cover 101 and the nut 203. In actual use, the screw 202 is rotated around the pin on the hinge seat 201, so that the screw 202 passes through the through groove 103 on the screen cover 101. Then the nut 203 is screwed onto the screw 202. The gasket 204 increases the contact area and enhances the fastening effect, thereby ensuring that the screen frame 100 and the screen cover 101 fit tightly together to form a closed screening space. It should be noted that a first sealing gasket is provided between the screen cover 101 and the screen frame 100 to improve the sealing effect of the screen cover 101, prevent material overflow, and avoid dust overflow.

[0033] Reference Figure 1 The top of the screen cover 101 is provided with a handle 104, which makes it easy to pick up the screen cover 101 so that the material can be placed inside the screen frame 100.

[0034] Specifically, when using this replaceable square sieve for cement flat samples: pour the cement sample to be sieved into the sieve frame 100. A first sealing gasket is provided between the sieve cover 101 and the sieve frame 100 to ensure the sealing during subsequent sieving. Rotate the screw 202 of the fastening assembly 200 so that it passes through the through groove 103 on the sieve cover 101. Then tighten the nut 203 and use the gasket 204 to increase the contact area, so that the screen cover 101 and the screen frame 100 fit tightly together to form a closed screening space. Place the assembled square screen on the continuous flat sample equipment. When the equipment is running, the cement material is screened on the screen 400. The square structure design makes it easier to cooperate with automated equipment and significantly improves screening efficiency compared with traditional round manual screens. When the screen 400 needs to be replaced, loosen the second connecting bolt 402 and take out the pressure strip 401 to replace the screen 400. When installing a new screen 400, fix the screen 400 in the mounting frame 300 by the pressure strip 401 and the second connecting bolt 402. After screening is completed, loosen the fastening component 200 and open the screen cover 101 to take out the screened material.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A replaceable square sieve for cement leveling, comprising a sieve frame (100), characterized in that, The top of the screen frame (100) is provided with a screen cover (101). A fastening assembly (200) for fixing the screen frame (100) and the screen cover (101) is provided between the screen frame (100) and the screen cover (101). The bottom of the screen frame (100) is provided with a mounting frame (300) detachably by a first connecting bolt (102). The mounting frame (300) is provided with a screen (400) for screening materials inside. The screen (400) is detachably provided inside the mounting frame (300) by a pressure strip (401) and a second connecting bolt (402).

2. The replaceable square sieve for cement leveling according to claim 1, characterized in that, The mounting frame (300) adopts a cover structure, and its top is detachably set at the bottom of the screen frame (100) by the first connecting bolt (102). A second sealing gasket (301) is provided between the mounting frame (300) and the screen frame (100).

3. The replaceable square sieve for cement leveling according to claim 2, characterized in that, The mounting frame (300) has an internal fitting groove (302) that mates with the first connecting bolt (102), and the bottom of the screen frame (100) has a first threaded hole (303) that mates with the first connecting bolt (102).

4. A replaceable square sieve for cement leveling according to claim 3, characterized in that, The screen (400), pressure bar (401), and screen frame (100) are all the same size.

5. A replaceable square sieve for cement leveling according to claim 4, characterized in that, The pressure strip (401), the mounting frame (300) and the screen frame (100) are all provided with a second threaded hole (403) that mates with the second connecting bolt (402).

6. A replaceable square sieve for cement leveling according to claim 1, characterized in that, The fastening assembly (200) includes a hinge seat (201) disposed on the outer wall of the screen frame (100), a screw (202) rotatably connected to the inside of the hinge seat (201) by a pin, and a nut (203) threadedly connected to the outer wall of the screw (202). The screen cover (101) is provided with a through groove (103) that mates with the screw (202), and a gasket (204) is provided between the screen cover (101) and the nut (203).

7. A replaceable square sieve for cement leveling according to claim 1, characterized in that, The sieve cover (101) is provided with a handle (104) on the top.

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