Mortar water-retaining property measuring device

Abstract

The utility model relates to the technical field of mortar water retention determination, in particular to a mortar water retention determination device which comprises a base and a determination component, an opening is formed in the top of the base, a containing cavity used for containing mortar is formed in the base, and a positioning piece is connected to the top of the base in a sliding mode through an elastic piece. The positioning piece is fixed with the base through an elastic structure, the positioning piece is used for positioning the measuring part, the circular positioning piece is used for replacing a positioning column, circular measuring test paper can be positioned more conveniently, and when the positioning piece is pressed, the measuring part can be positioned more conveniently. The positioning piece is retracted inwards and fixed in the mode that the limiting protrusion is connected with the clamping groove in a clamped mode, the positioning piece is retracted inwards and is flush with the top of the base, redundant mortar can be scraped conveniently, and after the limiting protrusion is unlocked, the positioning piece is reset under the action of the spring and fixed again through the limiting protrusion.

Description

Technical Field

[0001] The utility model relates to the technical field of mortar water retention measurement, in particular to a mortar water retention measurement device. Background Art

[0002] Water retention refers to the ability of mortar to retain moisture. If the mortar has poor water retention, segregation, water seepage, and slurry flow will occur during transportation, standing, and masonry, causing the mortar and the base to be loosely bonded and the strength to be reduced. Therefore, the water retention of the mortar must be tested before construction.

[0003] The mortar water retention test is completed using a measuring instrument. For example, the prior art Chinese patent publication number "CN219016320U" discloses a mortar water retention tester, which includes a circular test mold, a metal filter, multiple qualitative filter papers, a watertight sheet, and a pressure block arranged in sequence from bottom to top. The circular test mold is provided with multiple positioning posts sliding in the vertical direction around it. The multiple positioning posts enclose a receiving cavity corresponding to the qualitative filter paper. The multiple qualitative filter papers are stacked in the receiving cavity. The circular test mold is provided with a locking structure for locking the positioning posts. The utility model realizes that the metal filter and multiple qualitative filter papers can be neatly stacked without affecting the smooth scraping of mortar by the scraper, thereby improving the accuracy of the mortar water retention test.

[0004] In specific operations, before the measurement, the positioning columns need to be retracted and fixed by the screws on both sides to scrape off the protruding mortar. Afterwards, the screws on both sides need to be unlocked and the qualitative test paper is positioned by the positioning columns. However, repeated operation of the screws on both sides affects the scraping efficiency of the mortar and the positioning efficiency of the qualitative test paper. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the complex operation of the screws on both sides affects the scraping efficiency of the mortar and the positioning efficiency of the qualitative test paper, and to propose a mortar water retention measuring device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A mortar water retention measuring device is designed, including a base and a measuring component. The top of the base is provided with an opening, and the interior of the base is provided with a accommodating cavity for accommodating mortar. A positioning member is slidably connected to the top of the base through an elastic member. The positioning member is fixed to the base through an elastic structure, and the positioning member is used to position the measuring component.

[0008] Furthermore, the measuring component includes, from bottom to top, a metal filter, a plurality of test papers, a water-impermeable sheet and a pressing block.

[0009] Furthermore, the base has a columnar structure, and the top of the base is slidably connected to the positioning member through a slide groove, and the elastic member is provided between the slide groove and the positioning member, wherein a recessed portion is provided on the opening side of the slide groove, and the top outer edge of the positioning member extends outward to form an extension portion, and the extension portion is adapted to the recessed portion.

[0010] Furthermore, an opening slot is formed through the periphery of the positioning member, and the initial position of the opening slot is set at the top of the base, and the test paper is taken out through the opening slot.

[0011] Furthermore, the elastic structure includes a pair of slots, which are correspondingly arranged in the upper and lower parts, and both pass through the side of the base and are connected to the slide groove;

[0012] Among them, the bottom of the positioning member is provided with a pair of deformation grooves connected to the bottom edge, and the bottom is also provided with a limiting protrusion located between the deformation grooves on both sides. The limiting protrusion slides through the rounded corners and is clamped in the clamping groove.

[0013] Furthermore, the inner side surface of the bottom of the positioning member extends toward a side away from the midpoint to form a clearance space, and the clearance space is used to avoid the limiting protrusion, and the bottom of the positioning member also contacts the elastic member.

[0014] The utility model proposes a mortar water retention measuring device, which has the beneficial effect that: the utility model replaces the positioning column with a circular positioning piece, which can more conveniently position the circular measuring test paper, and prevent the test paper from being offset and causing uneven water absorption, and when the positioning piece is pressed, the positioning piece is retracted and fixed by means of a limiting protrusion engaging a slot, and the positioning piece is retracted and arranged flush with the top of the base, which is convenient for scraping off excess mortar. After unlocking the limiting protrusion, the positioning piece is reset under the action of the spring and is fixed again by the limiting protrusion. In addition, the setting of the clearance groove makes it convenient to take the measuring test paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A;

[0018] Figure 4 This is a structural diagram of the deformation groove of the utility model.

[0019] In the figure: 1. Base; 11. Accommodating cavity; 12. Slide groove; 13. Recessed portion; 2. Measuring component; 21. Metal filter; 22. Measuring test paper; 23. Waterproof sheet; 24. Pressing block; 3. Elastic member; 4. Positioning member; 41. Extension portion; 42. Opening groove; 5. Elastic structure; 51. Slot; 52. Deformation groove; 53. Limiting protrusion. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4 A mortar water retention measuring device includes a base 1 and a measuring component 2. The top of the base 1 is provided with an opening, and a accommodating cavity 11 for accommodating mortar is provided inside the base 1. A positioning member 4 is slidably connected to the top of the base 1 through an elastic member 3. The positioning member 4 is fixed to the base 1 through an elastic structure 5. The positioning member 4 is used to position the measuring component 2.

[0022] Specifically, the measuring component 2 includes, from bottom to top, a metal filter 21 , a plurality of test papers 22 , a water-impermeable sheet 23 , and a pressing block 24 .

[0023] In some embodiments, the mortar water retention test is completed by a tester, which includes a base 1, a metal filter 21, a plurality of test papers 22 (about 15 sheets), a waterproof sheet 23 and a pressing block 24. During the test, a scraper is used to scrape off the excess mortar on the top of the base 1. When the extension 41 is arranged in the recessed portion 13, the positioning member 4 is flush with the top of the base 1, which facilitates the scraping of mortar and ensures that the top surface of the base 1 is clean, does not leak sand, and can be tightly attached to the metal filter 21.

[0024] Furthermore, the metal filter 21, the multi-layer test paper 22 and the impermeable sheet 23 are sequentially covered on the mortar, and finally pressed with the pressing block 24. After standing for 2 minutes, the test paper 22 is taken out and weighed to calculate the moisture content.

[0025] The mortar in the base 1 can be cleaned by flushing.

[0026] Furthermore, the base 1 has a columnar structure, and the top of the base is slidably connected to the positioning member 4 through a slide groove 12, and the elastic member 3 is provided between the slide groove 12 and the positioning member 4, wherein a recessed portion 13 is provided on the opening side of the slide groove 12, and the top outer edge of the positioning member 4 extends outward to form an extension portion 41, and the extension portion 41 is adapted to the recessed portion 13.

[0027] Specifically, the elastic part 3 is a spring, which fits against the inner wall of the slide groove 12. A protective pad is provided at the bottom of the positioning part 4 to further increase the friction between the positioning part 4 and the elastic part 3. The two ends of the spring respectively contact the slide groove 12 and the positioning part 4. After the positioning part 4 is disassembled, the spring can also be replaced.

[0028] In more detail, an opening slot 42 is formed through the periphery of the positioning member 4 . The initial position of the opening slot 42 is located at the top of the base 1 . The test paper 22 is taken out through the opening slot 42 .

[0029] In general, the elastic structure 5 includes a pair of slots 51 , which are correspondingly arranged in an upper and lower position, and both pass through the side of the base 1 and are connected to the slide groove 12 ;

[0030] The bottom of the positioning member 4 is provided with a pair of deformation grooves 52 connected to the bottom edge, and the bottom is also provided with a limiting protrusion 53 between the deformation grooves 52 on both sides. The limiting protrusion 53 slides and is clamped in the clamping groove 51 through the rounded corners.

[0031] Finally, the inner side surface of the bottom of the positioning member 4 extends toward the side away from the midpoint to form a clearance space, and the clearance space is used to avoid the limiting protrusion 53 , and the bottom of the positioning member 4 also contacts the elastic member 3 .

[0032] In this embodiment, the positioning member 4 is preferably made of a plastic material with deformation ability. Under the action of the deformation groove 52, the limiting protrusion 53 is engaged with the clamping groove 51 through the rounded corner. The pair of clamping grooves 51 are used to fix the positioning member 4;

[0033] Furthermore, a clearance space is provided to prevent the limiting protrusion 53 from contacting the inner wall of the sliding groove 12 when the limiting protrusion 53 is pressed.

[0034] Working method: When working, press the limiting protrusion 53 to retract it and disengage from the top slot 51, then press the positioning member 4 to retract it. The limiting protrusion 53 slides through the rounded corners and engages with the bottom slot 51. At this time, the extension 41 at the top of the positioning member 4 is engaged in the recessed portion 13, and the top of the positioning member 4 is flush with the top of the base 1, making it easy to scrape off excess mortar.

[0035] Then, put the metal filter 21, multiple test papers 22 (about 15 sheets), waterproof sheet 23 and pressing block 24 in order. After standing for 2 minutes, take out the test paper 22 through the opening slot 42 and weigh it to calculate the moisture content.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for measuring water retention of mortar, comprising a base (1) and a measuring component (2), characterized in that: The inner top of the base (1) is provided with a receiving cavity (11) for receiving mortar. A positioning member (4) is slidably connected to the top of the base (1) via an elastic member (3). The positioning member (4) is fixed to the base (1) via an elastic structure (5). The positioning member (4) is used to position the measuring component (2).

2. A mortar water retention measuring device according to claim 1, characterized in that: The measuring component (2) comprises, from bottom to top, a metal filter (21), a plurality of measuring test papers (22), a water-impermeable sheet (23) and a pressing block (24).

3. A mortar water retention measuring device according to claim 1, characterized in that: The base (1) is a columnar structure, and the top of the base is slidably connected to the positioning member (4) through a slide groove (12), and the elastic member (3) is provided between the slide groove (12) and the positioning member (4), wherein a recessed portion (13) is provided on the opening side of the slide groove (12), and the top outer edge of the positioning member (4) extends outward to form an extension portion (41), and the extension portion (41) is adapted to the recessed portion (13).

4. A mortar water retention measuring device according to claim 2, characterized in that: An opening slot (42) is formed through the periphery of the positioning member (4), and the initial position of the opening slot (42) is set at the top of the base (1), and the test paper (22) is taken out through the opening slot (42).

5. A mortar water retention measuring device according to claim 3, characterized in that: The elastic structure (5) includes a pair of card slots (51), which are arranged correspondingly in the upper and lower parts, and both pass through the side of the base (1) and are connected to the slide groove (12); The bottom of the positioning member (4) is provided with a pair of deformation grooves (52) connected to the bottom edge, and the bottom is also provided with a limiting protrusion (53) located between the deformation grooves (52) on both sides. The limiting protrusion (53) slides and is clamped in the clamping groove (51) through the rounded corners.

6. A mortar water retention measuring device according to claim 5, characterized in that: The inner side surface of the bottom of the positioning member (4) extends toward a side away from the midpoint to form a clearance space, and the clearance space is used to avoid the limiting protrusion (53). The bottom of the positioning member (4) also contacts the elastic member (3).

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