CN216718439U

CN216718439U - Digital display mortar setting time tester

Info

Publication number: CN216718439U
Application number: CN202123189215.7U
Authority: CN
Inventors: 李维来; 童岭; 毛佳玮
Original assignee: Zheshang Testing Group Co ltd
Current assignee: Zheshang Testing Group Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-06-10
Anticipated expiration: 2031-12-15

Abstract

The utility model provides a digital display mortar setting time apparatus, includes the support, set up controller and motor on the support, vertical setting on the support and receive motor drive's lead screw, cup joint on the lead screw and can be along the nut seat of lead screw motion, fix the test needle subassembly on the nut seat, set up the digital display pressure apparatus under the test needle subassembly and place the test container who is used for holding the mortar on the digital display pressure apparatus. According to the utility model, through the arrangement of the motor, the lead screw and the nut seat, the automatic movement of the test needle assembly is realized, the existing mode of pressing the test needle assembly by hand is replaced, the test needle assembly can accurately move to the specified position within the specified time, and the detection accuracy is greatly improved.

Description

Digital display mortar setting time tester

Technical Field

The utility model relates to the field of mortar parameter detection, in particular to a digital display mortar setting time tester.

Background

The mortar setting time tester is used for measuring wall mortar and setting speed and setting time expressed by injection resistance, is particularly important for mastering the mortar setting time in the building construction process, and can be well utilized in construction by mastering the mortar setting time, thereby ensuring the construction quality, improving the construction progress and the like.

The existing mortar setting time tester comprises a handle, a test needle, a column, a bracket, a main shaft, a limit nut and the like. When the mortar testing device is used, firstly, the uniformly stirred mortar is transferred into a testing mold, the mortar is leveled about 10 mm away from the upper opening plane, the bleeding on the surface of the mortar is not cleared, the testing mold is placed on a disc, the pressure display is reset at the moment, then an operator vertically and downwards applies pressure to a pressure rod by hand, the testing needle slowly and uniformly vertically penetrates 25mm into the mortar within 10 seconds, the first testing value is shown on the pressure display at the moment, meanwhile, a limit nut is adjusted to a proper position, the pressure rod is released, the testing needle is reset under the action of spring force and is repeatedly used every half hour, when the resistance value reaches 0.3MPa, the testing needle is changed into 15 minutes for testing, and until the resistance value reaches 0.7 MPa.

The utility model discloses a patent document CN212586217U, it relates to a mortar setting time apparatus, its characterized in that: including support, weighing device and push down the piece, the weighing device can be dismantled and be fixed in the support, push down the piece and slide and set up on the support just it is located to push down the piece directly over the weighing device.

According to the information disclosed by the patent, the existing products on the market are combined, so that the meaningless inference can be made, the existing mortar setting time measuring instruments all adopt a manual mode (a hand wheel, a pressing piece and a test pin) to drive the test pin to move up and down, and therefore some defects which cannot be avoided exist, such as: firstly, the precision of manual operation is insufficient, so that the position of each test needle movement is easy to deviate, and the final measurement result has errors; secondly, the manual operation adjustment time is longer, and the vertical shaking usually needs half to one minute to adjust in place, so that the state of the sample is influenced, and the measurement result has errors; thirdly, if the number of samples is large, high-frequency detection is needed, and great pressure is caused to detection personnel.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a digital display mortar setting time tester

The technical scheme for solving the technical problem is as follows: the utility model provides a digital display mortar setting time apparatus, includes the support, set up controller and motor on the support, vertical setting on the support and receive motor drive's lead screw, cup joint on the lead screw and can be along the nut seat of lead screw motion, fix the test needle subassembly on the nut seat, set up the digital display pressure apparatus under the test needle subassembly and place the test container who is used for holding the mortar on the digital display pressure apparatus.

The scheme is further provided as follows: the test container comprises a relatively closed housing, a test modulus cup arranged in the housing, and a temperature regulator and a humidity regulator arranged in the housing, wherein the test modulus cup is placed on the digital display pressure measuring device, and the controller is respectively in control connection with the temperature regulator and the humidity regulator.

The scheme is further provided as follows: the upper end of the housing is provided with a test hole for the test needle assembly to pass in and out, the test needle assembly is sleeved with a sealing plug, and the sealing plug can block the test hole.

The scheme is further provided as follows: one side of the housing is provided with a rotary bin gate.

The scheme is further provided as follows: the housing is formed by splicing a plurality of transparent acrylic plates.

The scheme is further provided as follows: the digital display pressure measuring device is provided with a surrounding edge, the surrounding edge is annular and surrounds a limiting groove, and the test modulus cup is placed in the limiting groove.

The scheme is further provided as follows: the bottom surface of the limiting groove is further provided with a positioning block, the bottom of the test mold measuring cup is provided with a positioning groove, and the positioning block can be clamped into the positioning groove.

The scheme is further provided as follows: the test needle assembly comprises a test needle base fixed on the nut base and a disposable test sheath sleeved on the test needle base.

The scheme is further provided as follows: the controller comprises an electric control main board and a display screen, and a plurality of physical function buttons are arranged on the display screen.

The scheme is further provided as follows: the electric control main board is also provided with a timing module.

The working principle of the utility model is as follows: firstly, transferring the uniformly stirred mortar into a test container, troweling the mortar by about 10 mm from the upper opening plane, not clearing the bleeding on the surface of the mortar, placing the test container on a digital display pressure tester, resetting the digital display pressure tester, starting a motor by a controller, driving a nut seat to move by the motor through a lead screw, further enabling a test needle assembly to move downwards and slowly and uniformly penetrate into the mortar by 25mm within a specified time (10 seconds), wherein the digital display pressure tester shows a first test value, simultaneously reversing the motor to lift and reset the test needle assembly, repeating the operation once every half hour, measuring the test needle assembly once in 15 minutes when the resistance value reaches 0.3MPa, and recording the corresponding pressure and time data of all nodes until the resistance value reaches 0.7MPa so as to analyze and obtain the setting time of the mortar sample.

The utility model has the beneficial effects that: 1. the automatic movement of the test needle assembly is realized through the arrangement of the motor, the lead screw and the nut seat, the existing mode of pressing the test needle assembly by hand is replaced, the test needle assembly can accurately move to a specified position within a specified time, and the detection accuracy is greatly improved; 2. by adopting the relatively closed housing, a stable and reliable test space is provided, so that the interference of external factors is reduced as much as possible; 3. through temperature regulator and humidity controller's setting, can detect and adjust the temperature and humidity in the housing in real time to reach the default, keep each item detection factor's unanimity as far as possible, will detect at every turn the temperature in the housing and humidity adjustment to the fixed value, so that the measured data is more accurate and each other more comparable.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of a motor, a lead screw and a nut holder.

Fig. 3 is a schematic structural view of the digital display pressure measuring instrument.

Fig. 4 is a schematic structural view of a trial modulus cup.

Fig. 5 is a disassembled schematic view of the test needle assembly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, a digital display mortar setting time tester comprises a bracket 1, a controller 2 and a motor 3 which are arranged on the bracket 1, a screw rod 4 which is vertically arranged on the bracket 1 and is driven by the motor 3, a nut seat 5 which is sleeved on the screw rod 4 and can move along the screw rod 4, a test needle assembly 6 fixed on the nut seat 5, a digital display pressure tester 7 arranged right below the test needle assembly 6, and a test container 8 which is arranged on the digital display pressure tester 7 and is used for containing mortar.

Regarding the structural composition scheme of the test container 8 is various, the conventional test container is a very crude container, for example, in the utility model patent of patent document CN207036838U, the description of the test container 8 is that "the lower portion of the detachable test needle is provided with a mortar module box, the lower portion of the mortar module box is provided with a pressure bearing seat", and the accompanying drawings thereof are combined, so it can be concluded without doubt that the test container 8 is not optimized and improved, and the defect that the variation is increased in the test process is caused, for example, the factors such as temperature, humidity and the like in each test can be influenced by the large environment of the test site, and the test results measured by the same sample in summer and winter are very different, and thus, an effective and reliable result can not be obtained.

In order to solve the above-mentioned drawbacks of the prior art test container 8, the present embodiment provides a preferred structure, and specifically, referring to fig. 1, the test container 8 includes a relatively closed housing 9, a test mold cup 10 disposed in the housing 9, a temperature regulator 11 and a humidity regulator 12 disposed in the housing 9, the test mold cup 10 is disposed on the digital pressure measuring apparatus 7, and the controller 2 is respectively connected to the temperature regulator 11 and the humidity regulator 12. By adopting the structure scheme, firstly, a stable and reliable test space is provided by adopting the relatively closed housing 9 so as to reduce the interference of external factors as much as possible; secondly, through the setting of temperature regulator 11 and humidity regulator 12, can detect and adjust the temperature and humidity in encloser 9 in real time, in order to reach the default. Conventionally, the consistency of various detection factors is kept as much as possible, for example, the temperature and humidity in the housing 9 are adjusted to fixed values at each detection, so that the detection data are more accurate and are more comparable with each other.

In order to further improve the sealing of the housing 9 and to minimize the influence of the external environment during the test, the following measures are taken: the upper end of the housing 9 is provided with a test hole 13 for the test needle assembly 6 to enter and exit, the test needle assembly 6 is sleeved with a sealing plug 14, and the sealing plug 14 can block the test hole 13.

The test hole 13 is mainly arranged to match with the test needle assembly 6 and the sealing plug 14, so that the test sample cup 10 cannot pass through the test hole 13, and in order to operate the test sample cup 10, the sample can be conveniently replaced, namely, a rotary bin door 15 is arranged on one side of the housing 9. When the sample adjusting device is used, when the sample needs to be adjusted, the rotating bin door 15 is opened, and enough space is provided for a user to operate; during detection, the rotary bin door 15 is closed to form a relatively closed detection space.

The relatively closed housing 9 is not favorable to the detection personnel to observe the internal detection condition, in order to discover various problems that may appear in the detection process in time, in this embodiment, the housing 9 be formed by the concatenation of polylith transparent acrylic plate, the user can directly see through the inside condition of housing 9 to control the experiment better.

When the test modulus cup 10 is placed on the digital pressure measuring instrument 7, the specific relative position difference between the two may also cause the detection result to be misaligned. Therefore, referring to fig. 3, in order to control the position variable, the digital readout manometer 7 is provided with a peripheral edge 16, the peripheral edge 16 is annular and surrounds a limit groove 17, and the test mold cup 10 is placed in the limit groove 17, so that the test mold cup 10 can be maintained in a relatively stable and consistent detection area after repeated taking and placing.

Further, referring to fig. 3, a positioning block 18 is further arranged on the bottom surface of the limiting groove 17, a positioning groove 19 is formed in the bottom of the test mold measuring cup 10, and the positioning block 18 can be clamped into the positioning groove 19 to accurately position the test mold measuring cup 10 and the digital display pressure measuring device 7.

In order to eliminate the above-mentioned defects, referring to fig. 5, the test needle assembly 6 includes a test needle base 20 fixed on the nut base 5, and a disposable test sheath 21 sleeved on the test needle base 20. After each use, the used disposable test sheath 21 is taken down from the test needle base 20, and a new disposable test sheath 21 is replaced before the next test, so that the test needle assembly 6 cannot have residual mortar adhesion during each test, and the test detection precision is improved.

Compared with the manual control adopted by the traditional mortar setting time tester, the mortar setting time tester adopts a more intelligent electronic control mode, the controller 2 comprises an electric control main board and a display screen 22, and a plurality of physical function buttons 23 are arranged on the display screen 22 so as to facilitate the operation of fingers with gloves in the detection process. In order to record the detection time more accurately, the electric control main board is also provided with a timing module.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a digital display mortar setting time apparatus which characterized in that: the mortar testing device comprises a support, a controller and a motor which are arranged on the support, a lead screw which is vertically arranged on the support and is driven by the motor, a nut seat which is sleeved on the lead screw and can move along the lead screw, a test needle assembly fixed on the nut seat, a digital display pressure tester arranged right below the test needle assembly, and a test container which is placed on the digital display pressure tester and is used for containing mortar.

2. The digital display mortar setting time tester according to claim 1, characterized in that: the test container comprises a relatively closed housing, a test modulus cup arranged in the housing, and a temperature regulator and a humidity regulator arranged in the housing, wherein the test modulus cup is placed on the digital display pressure measuring device, and the controller is respectively in control connection with the temperature regulator and the humidity regulator.

3. The digital display mortar setting time tester according to claim 2, characterized in that: the upper end of the housing is provided with a test hole for the test needle assembly to pass in and out, the test needle assembly is sleeved with a sealing plug, and the sealing plug can block the test hole.

4. The digital display mortar setting time tester according to claim 2, characterized in that: one side of the housing is provided with a rotary bin gate.

5. The digital display mortar setting time tester according to claim 2, characterized in that: the housing is formed by splicing a plurality of transparent acrylic plates.

6. The digital display mortar setting time tester according to claim 2, characterized in that: the digital display pressure measuring device is provided with a surrounding edge, the surrounding edge is annular and surrounds a limiting groove, and the test modulus cup is placed in the limiting groove.

7. The digital display mortar setting time tester according to claim 6, characterized in that: the bottom surface of the limiting groove is further provided with a positioning block, the bottom of the test mold measuring cup is provided with a positioning groove, and the positioning block can be clamped into the positioning groove.

8. The digital display mortar setting time tester according to claim 2, characterized in that: the test needle assembly comprises a test needle base fixed on the nut base and a disposable test sheath sleeved on the test needle base.

9. The digital display mortar setting time tester according to claim 1, characterized in that: the controller comprises an electric control main board and a display screen, and a plurality of physical function buttons are arranged on the display screen.

10. The digital display mortar setting time tester according to claim 9, characterized in that: the electric control main board is also provided with a timing module.