CN219417132U - Cement negative pressure screen analysis instrument - Google Patents

Abstract

The utility model relates to a cement negative pressure screen analysis appearance, including the hand-held type main part, establish the screening chamber in the hand-held type main part, establish in the screening intracavity and rotate the swivel becket of being connected with the hand-held type main part, establish and dispose to drive swivel becket pivoted drive group in the hand-held type main part, establish the profile modeling extrusion arm in the screening chamber, establish the negative pressure pump in the hand-held type main part and establish the controller in the screening intracavity and be connected with drive group and negative pressure pump electricity, the top surface intercommunication of screening chamber and hand-held type main part, the input and the screening chamber of negative pressure pump are connected, the output stretches out in the hand-held type main part. The cement negative pressure screen analysis instrument disclosed by the application realizes on-site handheld detection through miniaturized design, and the screening effect is guaranteed to the mode that uses to force the screening net to warp simultaneously, avoids appearing long-time operation and the problem that testing result deviates.

Description

Cement negative pressure screen analysis instrument

Technical Field

The application relates to the technical field of detection, in particular to a cement negative pressure screen analyzer.

Background

The negative pressure sieve analysis instrument for cement is used in testing the fineness of cement (silicate cement, ordinary silicate cement, slag silicate cement, flyash silicate cement, composite silicate cement, etc.), and the present test mode is to sample in production line or warehouse, number and send to laboratory for detection.

The reasons for the incapability of on-site detection mainly include the following, and a screen analyzer used in a laboratory is large in size and difficult to move; when the size of the screening net is smaller, the blocking problem is easy to occur. The blockage can lead to the motor to rotate for a long time, the burning phenomenon is easy to appear, and the detection result deviation can also be caused to appear in incomplete screening, because the particles with partial small particle size can not be separated from the screening net.

Disclosure of Invention

The application provides a cement negative pressure screen analysis appearance realizes on-the-spot handheld detection through miniaturized design, uses simultaneously to force the mode of screening net deformation to guarantee screening effect, avoids appearing long-time operation and the skew problem of testing result.

The above object of the present application is achieved by the following technical solutions:

the application provides a cement negative pressure screen analysis appearance, include:

a hand-held main body;

the screening cavity is arranged in the handheld main body and is communicated with the top surface of the handheld main body;

the rotating ring is arranged in the screening cavity and is rotationally connected with the handheld main body;

the driving group is arranged on the handheld main body and is configured to drive the rotating ring to rotate;

the profiling extrusion arm is arranged in the screening cavity;

the negative pressure pump is arranged in the handheld main body, the input end of the negative pressure pump is connected with the screening cavity, and the output end of the negative pressure pump extends out of the handheld main body; and

and the controller is arranged in the screening cavity and is electrically connected with the driving group and the negative pressure pump.

In one possible implementation of the present application, a handheld body includes a first body and a second body detachably connected to the first body;

the screening cavity is positioned in the first main body;

the negative pressure pump is located in the second main body.

In one possible implementation of the present application, the rotating ring is provided with a clamping groove.

In one possible implementation of the present application, the number of the clamping grooves is plural, and the plurality of clamping grooves are uniformly arranged around the axis of the rotating ring.

In one possible implementation of the application, the cross-sectional area of the screening chamber tends to decrease in a direction closer to the negative pressure pump.

In one possible implementation of the present application, the device further comprises an end cap detachably secured to the hand-held body, the end cap being configured to close a top end of the hand-held body.

In one possible implementation of the present application, the controller includes a control chipset, a button electrically connected to the control chipset, and a control circuit electrically connected to the control chipset;

the control circuit is electrically connected with the driving group and the negative pressure pump.

In one possible implementation of the present application, the handheld body is provided with a connection slot and a positive and a negative electrode for connection to a power source;

the anode and the cathode are electrically connected with the control circuit.

Drawings

Fig. 1 is a schematic outline view of a cement negative pressure screen analyzer provided in the present application.

Fig. 2 is a schematic exploded view based on fig. 1.

Fig. 3 is a schematic view of an internal structure of a handheld body provided in the present application.

Fig. 4 is a schematic structural view of a rotary ring provided in the present application.

Fig. 5 is a schematic structural view of another rotary ring provided in the present application.

Fig. 6 is a schematic block diagram of a controller provided in the present application.

Fig. 7 is a schematic structural diagram of a connection between a power supply and a handheld body.

In the figure, 11, a handheld main body, 12, a screening cavity, 13, a rotating ring, 14, a driving group, 15, a profiling extrusion arm, 16, an end cover, 31, a connecting clamping groove, 32, an anode and cathode, 61, a control chip group, 62, a button, 63, a control circuit, 111, a first main body, 122, a second main body, 131, a clamping groove, 2, a negative pressure pump, 6, a controller, 701, a filter screen, 702 and a power supply.

Detailed Description

The technical solutions in the present application are described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 to 3, for a negative pressure screen analyzer for cement disclosed in the present application, the screen analyzer is composed of a handheld main body 11, a screening cavity 12, a rotating ring 13, a driving set 14, a profiling extrusion arm 15, a negative pressure pump 2, a controller 6 and the like, wherein the screening cavity 12 is arranged inside the handheld main body 11, the screening cavity 12 is communicated with the top surface of the handheld main body 11, and the screening cavity 12 is used for placing a sample bin containing a sample.

A rotating ring 13 is arranged in the screening chamber 12 and is in rotational connection with the hand-held body 11, the power for the rotation of the rotating ring 13 being provided by a drive group 14, the drive group 14 being likewise mounted on the hand-held body 11, the drive group 14 in some possible implementations being composed of a motor and a gear mounted on the motor, the gear being in engagement with the rotating ring 13.

The profiling extrusion arm 15 is fixed in the screening cavity 12 and is used for forcing the sample bin to locally deform so as to solve the problem of local blockage of the sample bin. It will be appreciated that the size of the sample placed in the sample compartment may vary, and that some large size particles may clog the through holes in the sample compartment, resulting in small size particles not being separated.

The holding part of the sample bin is made of a metal wire mesh, and when the profiling extrusion arm 15 is contacted with the holding part of the metal wire mesh, the holding part of the sample bin is locally deformed by pressure so as to separate large-particle-size particles in the through hole from contact with the holding part of the sample bin.

The negative pressure pump 2 is also positioned in the handheld body 11, the input end of the negative pressure pump 2 is connected with the sieving chamber 12, and the output end extends out of the handheld body 11 and is used for pumping out dust in the sieving chamber 12. The output of negative pressure pump 2 is connected with filter screen 701, and the mode of grafting or threaded connection is adopted with the output of negative pressure pump 2 to the input of filter screen 701, and a filter core is installed to the output department of filter screen 701, and the effect of filter core is the interception dust, makes the dust that flows from screening chamber 12 can stay in filter screen 701.

The controller 6 is installed in the hand-held body 11 and electrically connected with the driving group 14 and the negative pressure pump 2, and functions to control the start and stop of the driving group 14 and the negative pressure pump 2.

Referring to fig. 1 and 2, after a sample is placed in a sample bin, the sample bin is placed in a screening cavity 12 to separate the sample, and a power supply 702 and a filter screen 701 are both external, so that the volume of a handheld main body 11 can be reduced, and the handheld main body can be replaced at any time.

The small-volume cement negative pressure screen analyzer can timely detect the collected samples on site, and a new sample bin can be immediately replaced for next detection after the separation of one sample bin is completed. The detection mode can enable staff to analyze the fineness of the cement on site and rapidly obtain a detection result, can timely judge whether the cement is qualified or not, and solves the problem of hysteresis of reporting after laboratory detection.

Referring to fig. 2, in some examples, the hand-held body 11 is composed of a first body 111 and a second body 122, and the first body 111 and the second body 122 are detachably connected, for example, by a threaded connection, so that the design of the hand-held body 11 into two parts has the advantage of wiping and flushing the sieving chamber 12 in the first body 111 to remove the residual sample (cement) on the surface of the sieving chamber 12.

The disassembly of the wiping allows thorough cleaning of the screening chamber 12, in particular removal of sample (cement) residues at the connection of the screening chamber 12 to the negative pressure pump 2.

The sample bin and the rotating ring 13 are connected in the following ways:

first, referring to fig. 4, the sample chamber is fixed by pressing, that is, the fit between the sample chamber and the rotating ring 13 is an interference fit;

second, referring to fig. 5, a clamping groove 131 is formed on the rotary ring 13, and a protrusion on the sample bin can be clamped into the clamping groove 131 to connect the rotary ring 13 and the sample bin together;

in some possible implementations, the number of the clamping grooves 131 is plural, and the plurality of clamping grooves 131 are uniformly disposed around the axis of the rotating ring 13.

Thirdly, the bolts are fixed, a bolt is arranged on the sample bin, and the bolt can be screwed into a threaded hole on the rotating ring 13;

in some possible implementations, the number of bolts is one.

For the sample cartridge, there are both closed type and open type, and when the open type sample cartridge is used, it is necessary to add an end cap 16 to the hand-held body 11, and the end cap 16 is used to close the top end of the hand-held body 11. The fit between the end cover 16 and the closed handheld body 11 is an interference fit, and the end cover 16 is directly pressed onto the closed handheld body 11 to be fixed when the end cover 16 is installed.

In some examples, referring to fig. 2, the cross-sectional area of the screening cavity 12 tends to decrease in a direction approaching the negative pressure pump 2, and the screening cavity 12 having such a shape can accelerate the air flow velocity in the screening cavity 12 and also increase the difficulty of attaching the sample (cement).

Referring to fig. 6, the controller 6 mentioned above is composed of a control chipset 61, a button 62 electrically connected to the control chipset 61, and a control circuit 63 electrically connected to the control chipset 61, wherein the button 62 is used for sending a signal, the control chipset 61 drives the control circuit 63 according to the signal sent by the button 62, the control circuit 63 is electrically connected to the driving group 14 and the negative pressure pump 2, and the driving group 14 and the negative pressure pump 2 can be started and stopped under the control of the control circuit 63.

In some possible implementations, the control chipset 61 and the control circuit 63 are both integrated on one circuit board.

In some possible implementations, the control chipset 61 uses a single chip microcomputer (86C 51 series), the control circuit 63 is composed of an electromagnetic switch and a relay, the control chipset 61 controls the relay, and the relay controls the electromagnetic switch

Referring to fig. 7, the external power supply is connected through a connection slot 31 provided in the handheld body 11 and a positive electrode 32 for connection with the power supply, and the connection slot 31 fixes the power supply to the handheld body 11. When the power supply is connected to the hand-held body 11, the positive and negative electrodes 32 are electrically connected to the control circuit 63 and the power supply. When the corresponding circuit on the control circuit 63 is on, the drive group 14 and the negative pressure pump 2 will start.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A negative pressure screen analyzer for cement, comprising:

a hand-held main body (11);

the screening cavity (12) is arranged in the handheld main body (11), and the screening cavity (12) is communicated with the top surface of the handheld main body (11);

a rotating ring (13) which is arranged in the screening cavity (12) and is rotationally connected with the hand-held main body (11);

a drive group (14) provided on the hand-held body (11) and configured to drive the rotation ring (13) to rotate;

the profiling extrusion arm (15) is arranged in the screening cavity (12);

the negative pressure pump (2) is arranged in the handheld main body (11), the input end of the negative pressure pump (2) is connected with the screening cavity (12), and the output end of the negative pressure pump extends out of the handheld main body (11); and

and the controller (6) is arranged in the screening cavity (12) and is electrically connected with the driving group (14) and the negative pressure pump (2).

2. The negative pressure screen of claim 1, wherein the hand-held body (11) comprises a first body (111) and a second body (122) detachably connected to the first body (111);

the screening cavity (12) is positioned in the first main body (111);

the negative pressure pump (2) is located within the second body (122).

3. The negative pressure screen analyzer of claim 1, characterized in that the rotary ring (13) is provided with a clamping groove (131).

4. A cement negative pressure screen as claimed in claim 3, wherein the number of the clamping grooves (131) is plural, and the plurality of clamping grooves (131) are uniformly arranged around the axis of the rotary ring (13).

5. A cement negative pressure screen as claimed in claim 1, characterized in that the cross-sectional area of the screening chamber (12) tends to decrease in the direction towards the negative pressure pump (2).

6. The cement negative pressure screen as recited in claim 1 or 2, further comprising an end cap (16) removably secured to the hand-held body (11), the end cap (16) being adapted to close the top end of the hand-held body (11).

7. The cement negative pressure screen as recited in claim 1, wherein the controller (6) comprises a control chipset (61), a button (62) electrically connected to the control chipset (61), and a control circuit (63) electrically connected to the control chipset (61);

the control circuit (63) is electrically connected to the drive group (14) and the negative pressure pump (2).

8. The negative pressure screen analysis instrument according to claim 7, characterized in that the hand-held body (11) is provided with a connection clamping groove (31) and a positive and a negative electrode (32) for connection to a power supply;

the positive and negative electrodes (32) are electrically connected to a control circuit (63).