Sealing anchor mortar extrusion performance testing device

Abstract

The utility model relates to a sealing anchor mortar extrusion performance testing device. The sealing anchor mortar extrusion performance testing device comprises a support, a testing cylinder arranged on the support and used for containing sealing anchor mortar, an extrusion opening formed in the bottom of the testing cylinder, and a gravity pressing piece inserted into the testing cylinder and sliding along the testing cylinder. And a fixing device for limiting the sliding of the gravity pressing piece is arranged on the side wall of the testing cylinder. In the whole testing process, the pressure acting on the sealing anchor mortar can be ensured to be constant and stable, and a series of defects caused by unstable force acting on the sealing anchor mortar in the prior art are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor sealing mortar detection, and in particular relates to an anchor sealing mortar extrusion performance testing device. Background Art

[0002] The anchor mortar is used to seal the reserved holes for prestressed steel bars on the side of the track slab. During construction, the anchor mortar is first bagged, then extruded with a high-pressure air gun and injected into the reserved holes. When the hardness and cohesion of the anchor mortar mixture are too large, the extrusion performance of the anchor mortar will be poor, which will affect its extrusion speed and slow down the extrusion speed. In this way, during construction, the anchor mortar will not be able to fill the reserved holes. Therefore, in order to ensure that the anchor mortar is discharged quickly, it is necessary to test the extrusion performance of the anchor mortar. However, at present, there is no requirement for testing this performance in the relevant standards for anchor mortar, and there is no method or device for testing the extrusion performance of anchor mortar.

[0003] Although the national standard GBT 13477.3-2017 Test Method for Building Sealing Materials Part 3 discloses a method for determining the extrudability of building sealing materials using standard instruments, which is to put the sealing material into a test tube, give it compressed air with a stable air pressure, and characterize the extrusion performance of the material by calculating the volume or weight of the extruded sealing material per unit time. The test device involved in this standard is mainly for building sealing materials with fine particles and good fluidity. When it is applied to anchor mortar with coarse particles and poor fluidity, it is easy to affect the discharge speed of the anchor mortar due to the unstable air pressure when the compressed air is injected into the test tube. Therefore, it is very important to develop a test device for the extrusion performance of anchor mortar to test the extrusion performance of anchor mortar. Utility Model Content

[0004] The utility model aims to overcome the defect in the prior art that compressed gas extrudes anchor mortar and easily leads to unstable air pressure, and provides an anchor mortar extrusion performance testing device.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A device for testing the extrusion performance of sealing and anchoring mortar comprises a bracket, a test tube arranged on the bracket and used to accommodate the sealing and anchoring mortar, an extrusion port arranged at the bottom of the test tube, and a gravity pressing piece inserted into the test tube and sliding along the test tube; a fixing device for limiting the sliding of the gravity pressing piece is arranged on the side wall of the test tube.

[0007] As a further technical solution, the gravity pressing member includes a gravity pressing rod inserted into the test cylinder and a boss arranged on the gravity pressing rod.

[0008] As a further technical solution, a detector is further provided on the outer wall of the testing cylinder, and the detector is located directly below the boss.

[0009] As a further technical solution, the detector adopts a distance measuring timer, which includes a PLC control module, a laser distance measuring module and a timing module respectively connected to the PLC control module for communication.

[0010] As a further technical solution, the detector adopts a laser ranging and speed measuring sensor.

[0011] As a further technical solution, the test cylinder includes an upper cylinder, a lower cylinder and a conical head connected in sequence from top to bottom, the detector and the fixing device are both arranged on the upper cylinder, and the extrusion port is arranged at the bottom of the conical head.

[0012] As a further technical solution, a frame plate is provided on the outer wall of the test cylinder, and the test cylinder is mounted on the bracket through the frame plate.

[0013] As a further technical solution, a level is provided at the top center of the gravity pressing member.

[0014] As a further technical solution, a leveling device is provided at the bottom of the bracket.

[0015] As a further technical solution, the leveling device includes a plurality of leveling bolts arranged at the bottom of the bracket.

[0016] As a further technical solution, the fixing device adopts a fastening bolt, a bolt hole is opened on the side wall of the test tube, and the fastening bolt is inserted into the bolt hole and threadedly connected with the bolt hole.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is provided with a gravity pressing piece, which relies on the gravity of the gravity pressing piece to pressurize the anchor mortar so as to extrude the anchor mortar. Compared with the traditional technology, it can ensure that the pressure acting on the anchor mortar is constant and stable during the entire test process, thus solving a series of defects in the prior art caused by the unstable force acting on the anchor mortar.

[0019] The utility model is provided with a detector for measuring the time taken for extruding a prescribed length of the anchor sealing mortar or the extrusion speed of the anchor sealing mortar.

[0020] The setting of the leveling device and the leveler of the utility model can ensure that the equipment is in a horizontal state during the test process, thereby avoiding measurement errors caused by uneven equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of the utility model (with sealing anchor mortar);

[0023] Figure 3 for Figure 2 A magnified image of point A;

[0024] Figure 4 This is a structural block diagram of a distance measuring timer in one embodiment of the utility model.

[0025] In the figure: 1. bracket, 2. sealing anchor mortar, 3. test tube, 4. extrusion port, 5. gravity pressure piece, 6. pressure rod, 7. boss, 8. spirit level, 9. leveling bolt, 10. fastening bolt, 11. detector, 12. upper cylinder, 13. lower cylinder, 14. conical head, 15. frame plate, 16. PLC control module, 17. laser ranging module, 18. timing module. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Figure 1-3 An embodiment of the present utility model is shown of a device for testing the extrusion performance of an anchor mortar, comprising a bracket 1, a test tube 3 arranged on the bracket 1 and used to accommodate the anchor mortar 2, an extrusion port 4 arranged at the bottom of the test tube 3, a gravity pressing member 5 inserted into the test tube 3 and sliding along the test tube 3; a fixing device for limiting the sliding of the gravity pressing member 5 is arranged on the side wall of the test tube 3. The present utility model is provided with a gravity pressing member 5, and relies on the gravity of the gravity pressing member 5 to pressurize the anchor mortar 2 so that the anchor mortar 2 is extruded. Compared with the traditional technology, it can ensure that the pressure acting on the anchor mortar 2 is constant and stable during the entire test process, and solves a series of defects caused by the unstable force acting on the anchor mortar 2 in the prior art.

[0031] As an embodiment of the present invention, a sealing anchor mortar extrusion performance testing device, the gravity pressing member 5 includes a gravity pressing rod 6 inserted into the testing tube 3 and a boss 7 arranged on the gravity pressing rod 6 .

[0032] As an embodiment of the present invention, a device for testing the extrusion performance of sealing and anchoring mortar is provided on the outer wall of the test tube 3. The position of the detector 11 corresponds to the position of the boss 7 and is located directly below the boss 7. The detector 11 is used to measure the time taken to extrude a specified length of the sealing and anchoring mortar 2.

[0033] As an embodiment of the present invention, a device for testing the extrusion performance of anchor mortar, the detector 11 can be a distance measuring timer, such as Figure 4As shown, the distance measuring timer includes a PLC control module, a laser distance measuring module and a timing module which are respectively connected to the PLC control module in communication. The PLC control module adopts an HC1V-10MR PLC programmable controller, the model of the laser distance measuring module is OS10-AKL350CN6Q8, and the model of the timing module is HW-069. The utility model sets a distance measuring timer, which automatically measures the downward pressing distance of the gravity pressing member 5 (that is, the extrusion length of the sealing anchor mortar 2) through a laser rangefinder, and automatically measures the extrusion time through a timing module; thus, the time required to extrude the specified length of the sealing anchor mortar 2 can be calculated; the distance measuring timer of the utility model is a prior art, and the working principle and structure of each module thereof are not repeated here; compared with the manual measurement in the traditional technology, it not only saves manpower, but also eliminates the errors caused by manual operation, and the measurement is more accurate. Furthermore, when the laser distance measuring timer of the utility model measures the distance, it transmits a signal to the boss 7, and determines the downward moving distance of the gravity pressing member 5 or the extruded length of the sealing anchor mortar 2 by measuring the downward moving distance of the boss 7.

[0034] As another embodiment of the present invention, the detector 11 can also adopt a laser ranging speed sensor. The model of the laser ranging speed sensor is LDI-5 produced by Zhenshangyou Technology Co., Ltd. The extrusion speed of the anchor mortar 2 can be measured by the laser ranging speed sensor, and then the time used to extrude a specified length of the anchor mortar 2 can be calculated based on the extrusion speed.

[0035] As an embodiment of the present invention, a sealing anchor mortar extrusion performance testing device, the test cylinder 3 includes an upper cylinder 12, a lower cylinder 13 and a conical head 14 connected in sequence from top to bottom, the distance measuring timer and the fixing device are both arranged on the upper cylinder 12, and the extrusion port 4 is arranged at the bottom of the conical head 14.

[0036] As an embodiment of the present invention, a device for testing the extrusion performance of sealing anchor mortar, the lower cylinder 13 is threadedly connected to the upper cylinder 12 and the conical head 14 respectively.

[0037] As an embodiment of the present invention, a device for testing the extrusion performance of an anchor mortar is provided with a frame plate 15 on the outer wall of the test tube 3 , and the test tube 3 is mounted on the bracket 1 through the frame plate 15 .

[0038] As an embodiment of the present invention, a device for testing the extrusion performance of sealing anchor mortar, the frame plate 15 is arranged on the lower cylinder 13 .

[0039] As an embodiment of the present invention, a sealing anchor mortar extrusion performance testing device is characterized in that a level 8 is provided at the top center of the gravity pressing member 5; the level 8 is a bubble level 8.

[0040] As an embodiment of the present invention, a leveling device is provided at the bottom of the bracket 1. The setting of the leveling device and the level 8 of the present invention can ensure that the equipment is in a horizontal state during the test, avoiding measurement errors caused by uneven equipment.

[0041] As an embodiment of the present invention, a device for testing the extrusion performance of sealing and anchoring mortar, the leveling device includes a plurality of leveling bolts 9 arranged at the bottom of the bracket 1 .

[0042] As an embodiment of the present invention, a sealing anchor mortar extrusion performance testing device is used. The fixing device adopts a fastening bolt 10. A bolt hole is opened on the side wall of the test tube 3. The fastening bolt 10 is inserted into the bolt hole and threadedly connected to the bolt hole.

[0043] The use of the utility model:

[0044] 1. First, install the conical head 14 to the bottom of the lower cylinder 13, then load the prepared sealing and anchoring mortar 2 into the lower cylinder 13 and the conical head 14, smooth the sealing and anchoring mortar 2 on the upper surface, and then place it on the triangular bracket 1;

[0045] 2. Install the upper cylinder 12 onto the lower cylinder 13, and then insert the gravity pressing piece 5 into the upper cylinder 12 until the lower surface of the gravity pressing piece 5 contacts the sealing anchor mortar 2. At this time, tighten the fastening bolts 10 so that the fastening bolts 10 abut against the side wall of the gravity pressing piece 5 to prevent the gravity pressing piece 5 from sliding down;

[0046] 3. Observe the bubble level 8 and turn the leveling bolt 9 to make the utility model in a horizontal state;

[0047] 4. Turn on the distance measuring timer, set the distance that the gravity pressing member 5 moves downward, that is, the length of the sealing anchor mortar 2 extruded, and reset the timer;

[0048] 5. Reversely rotate the fastening bolt 10 to disengage the fastening bolt 10 from the gravity pressing member 5. At this time, the gravity pressing member 5 begins to move downward under the action of gravity. When it moves to the set distance, the timing module stops timing and gives the time taken for the gravity pressing member 5 to slide down the specified distance.

[0049] 6. Calculate the extrusion volume of the anchor mortar 2 by the inner diameter of the test tube 3 and the distance that the gravity pressure piece 5 slides down, and then calculate the time used to extrude a unit volume of the anchor mortar 2; in steps 4-6, a laser ranging and speed sensor can also be used to read the extrusion speed of the anchor mortar, and then calculate the time used to extrude a unit volume of the anchor mortar 2 based on the extrusion speed.

[0050] 7. Evaluate whether the extrusion performance of the anchor sealing mortar 2 is qualified by the time taken to extrude a unit volume of the anchor sealing mortar 2; when the time taken to extrude a unit volume of the anchor sealing mortar 2 is greater than the time threshold, it is unqualified; when the time taken to extrude a unit volume of the anchor sealing mortar 2 is less than or equal to the time threshold, it is qualified (or evaluate whether the extrusion performance of the anchor sealing mortar 2 is qualified by the extrusion speed of the anchor mortar; when the extrusion speed of the anchor sealing mortar 2 is less than the speed threshold, it is unqualified; when the extrusion speed of the anchor sealing mortar 2 is greater than the speed threshold, it is qualified).

[0051] The above-mentioned embodiments are only preferred embodiments of the present invention, and are not exhaustive of the feasible implementations of the present invention. For those skilled in the art, any obvious changes made to the present invention without departing from the principle and spirit of the present invention should be considered to be included in the scope of protection of the claims of the present invention.

Claims

1. A device for testing the extrusion performance of anchor mortar, characterized in that: The invention comprises a support (1), a test tube (3) arranged on the support (1) and used to accommodate sealing anchor mortar (2), an extrusion port (4) arranged at the bottom of the test tube (3), and a gravity pressing member (5) inserted into the test tube (3) and sliding along the test tube (3); a fixing device for limiting the sliding of the gravity pressing member (5) is arranged on the side wall of the test tube (3).

2. The anchor mortar extrusion performance testing device according to claim 1, characterized in that: The gravity pressing member (5) comprises a gravity pressing rod (6) inserted into the testing cylinder (3) and a boss (7) arranged on the gravity pressing rod (6).

3. The anchor mortar extrusion performance testing device according to claim 2, characterized in that: A detector (11) is also provided on the outer wall of the test cylinder (3), and the detector is located directly below the boss (7).

4. The anchor mortar extrusion performance testing device according to claim 3, characterized in that: The detector (11) adopts a distance measuring timer, which comprises a PLC control module, a laser distance measuring module and a timing module respectively connected to the PLC control module for communication.

5. The anchor mortar extrusion performance testing device according to claim 3, characterized in that: The detector (11) adopts a laser distance measurement and speed measurement sensor.

6. The anchor mortar extrusion performance testing device according to claim 3, characterized in that: The test cylinder (3) comprises an upper cylinder (12), a lower cylinder (13) and a conical head (14) which are connected in sequence from top to bottom, the detector (11) and the fixing device are both arranged on the upper cylinder (12), and the extrusion port (4) is arranged at the bottom of the conical head (14).

7. The anchor mortar extrusion performance testing device according to claim 1, characterized in that: The outer wall of the test cylinder (3) is provided with a frame plate (15), and the test cylinder (3) is mounted on the bracket (1) via the frame plate (15).

8. The anchor mortar extrusion performance testing device according to claim 1, characterized in that: A level gauge (8) is provided at the top center of the gravity pressing member (5), and a leveling device is provided at the bottom of the bracket (1).

9. The anchor mortar extrusion performance testing device according to claim 8, characterized in that: The leveling device comprises a plurality of leveling bolts (9) arranged at the bottom of the bracket (1).

10. The anchor mortar extrusion performance testing device according to claim 1, characterized in that: The fixing device adopts a fastening bolt (10), a bolt hole is opened on the side wall of the test cylinder (3), and the fastening bolt (10) is inserted into the bolt hole and threadedly connected with the bolt hole.

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