Mortar consistency measuring device

Abstract

The utility model discloses a mortar consistency measuring device which comprises a base, a test cone and a conical barrel, a supporting mechanism is arranged at the top of the base and comprises a supporting column, a guiding assembly and a limiting assembly, the guiding assembly is used for guiding lifting of the test cone and comprises a measuring rod and a limiting sleeve, and the limiting sleeve is arranged outside the measuring rod in a sleeving mode. The test cone is fixedly connected to the bottom end of the measuring rod, the measuring rod comprises a rod body and a rack, and the rack is fixedly connected to one side of the rod body. When the mortar consistency measuring device is used for measuring the consistency of mortar, the measuring rod slides in the sliding sleeve to enable the rack to be meshed with the gear, so that the measuring rod and the sliding sleeve can be in a stable state only by utilizing the latch block to limit the gear, the spring can pull the latch block to descend only by pushing the shifting piece to be separated from the magnet piece in the process of triggering the latch block, and the consistency of the mortar is measured. Therefore, the transient response effect is achieved in the process, the measuring and reading time can be controlled more accurately, and the measuring result is more accurate and reliable.

Description

Technical Field

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

[0002] Mortar consistency determination is an important step before building construction, which is used to determine the mix ratio of mortar and consistency control during construction, which will help control the water consumption and fluidity of mortar.

[0003] The mortar consistency meter, also known as the mortar fluidity tester, is an instrument used to measure the fluidity of mortar. It is mainly composed of a cone with a slide bar (145mm high, 75mm cone bottom diameter, 300±2g in weight) and a truncated cone-shaped metal cylinder container. When in use, the mixed mortar is loaded into the container at once, about 1cm from the upper mouth of the container and compacted according to the prescribed test method, and then the cone is allowed to sink freely from the center of the mortar surface. The descending distance is measured after 10s, measured in cm (accurate to 0.5cm), which is the consistency value (also known as sinking degree) of the mortar; the slide bar connected to the test cone in the mortar consistency meter is usually fixed by a brake screw, so the test cone can be lowered by unscrewing the brake screw, but the screw fixes the slide bar in a pushing manner, which will easily destroy the smoothness of the slide bar surface, and the activity and fixation of the slide bar are determined by turning the screw, and the instantaneous response effect cannot be achieved. Therefore, it is difficult to accurately control the measurement time, which will affect the accuracy and reliability of the measurement results.

[0004] After searching, the Chinese utility model patent with publication number CN206710248U discloses a mortar consistency measuring instrument that is easy to read, including a measuring rod, a double-tube bracket, a reading window, a fixing bolt, a standard test cone, a support rod, a material container, a fixing ring, a chassis, and the measuring rod and the standard test cone are welded into a whole. The measuring rod passes through the sleeve at one end of the double-tube bracket, and the sleeve at the other end of the double-tube bracket is passed through by the support rod. The fixing bolt is inserted from the small hole on the side to fasten the measuring rod and the support rod. The support rod is welded near the edge of the chassis. The sleeve and the measuring rod of this application are fixed with fixing bolts, but twisting the latter cannot directly tighten or loosen the former two. Instead, during the rotation of the fixing bolt, the sleeve and the measuring rod will gradually change from loose to tight or from tight to loose. The loose-tight transition process will make it difficult to accurately control the measurement and reading time, thus affecting the accuracy and reliability of the measurement results. Utility Model Content

[0005] In view of the above-mentioned prior art, the utility model provides a mortar consistency measuring device, and the main technical problem to be solved is how to ensure the accuracy and reliability of the mortar consistency measurement result.

[0006] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0007] A mortar consistency measuring device comprises a base, a test cone and a cone cylinder. A supporting mechanism is provided on the top of the base. The supporting mechanism comprises a pillar, a guide assembly and a limit assembly. The guide assembly is used for guiding the lifting and lowering of the test cone. The guide assembly comprises a measuring rod and a limit sleeve. The limit sleeve is arranged on the outside of the measuring rod. The test cone is fixedly connected to the bottom end of the measuring rod. The measuring rod comprises a rod body and a rack. The rack is fixedly connected to one side of the rod body. The limit assembly is used for fixing the position of the test cone after lifting and lowering. The limit assembly comprises a gear and a tooth block. The gear is meshed with the rack and the tooth block.

[0008] Furthermore, the pillar and the cone cylinder are respectively fixedly connected to both sides of the top of the base, the outer sleeve of the pillar is provided with a fixing sleeve, one side of the fixing sleeve is provided with a threaded through hole, and the fixing sleeve is threadedly connected with a bolt at the threaded through hole, the other side of the fixing sleeve is fixedly connected to a connecting plate, the limit sleeve is fixedly connected to one end of the connecting plate, the cone cylinder is located below the test cone, and the cone cylinder and the test cone are on the same axis.

[0009] Furthermore, the limit sleeve includes a sliding sleeve and a fixed box. The sliding sleeve is arranged on the outside of the measuring rod and is adapted to the measuring rod. A rectangular opening is opened at the bottom end of one side of the sliding sleeve. The fixed box is fixedly connected to the sliding sleeve at the rectangular opening. A rotating shaft is fixedly connected between the inner walls on both sides of the fixed box. A bearing is fixedly connected to the outside of the rotating shaft, and the gear is connected to the outside of the bearing through a key.

[0010] Furthermore, the side wall of the sliding sleeve is fixedly connected to a support plate at the top of the fixed box, a circular through hole is opened on the plate body of the support plate, and a sliding rod is provided at the circular through hole of the support plate, a tooth block is fixedly connected to the bottom end of the sliding rod, a bayonet is opened at one side of the top of the fixed box, the tooth block is adapted to the bayonet, and the tooth block extends to the interior of the fixed box at the bayonet.

[0011] Furthermore, a paddle is fixedly connected to the top of the slide rod, the material of the paddle is iron, and a spring is fixedly connected between the paddle and the support plate on the outside of the slide rod, the spring is a tension spring, and a magnet is fixedly connected to the side wall of the fixed box at the top of the paddle, and the distance between the magnet and the support plate is greater than the initial length of the spring.

[0012] Furthermore, a strip-shaped groove is provided on one side of the rod body, and a scale is fixedly connected to the rod body at the strip-shaped groove, and the thickness of the scale is equal to the depth of the strip-shaped groove.

[0013] Furthermore, a top end of the sliding sleeve near the scale is rotatably connected to a fixed frame via a damping shaft, and a magnifying glass is fixedly connected to the inner side of the fixed frame.

[0014] The beneficial effects of the utility model are:

[0015] 1. When using this device to measure the consistency of mortar, the sliding of the measuring rod in the sliding sleeve will cause the rack and the gear to mesh. Therefore, the measuring rod and the sliding sleeve can be kept in a stable state by only using the tooth block to limit the gear. In addition, the process of triggering the tooth block only requires pushing the paddle and the magnet to separate, so that the spring can pull the tooth block down, so that the process can achieve an instantaneous response effect. Therefore, the measurement time can be controlled more accurately, making the measurement result more accurate and reliable. Secondly, since the gear is arranged outside the rotating shaft through the bearing, and the friction between the rack and the gear can be reduced by applying lubricant during the engagement, it can avoid the friction from causing excessive obstruction to the descent of the test cone, so the accuracy of the measurement result can be further guaranteed.

[0016] 2. By setting a scale on the side of the rod body of the measuring rod, the top edge of the sliding sleeve can be used as a reference point. Therefore, it is only necessary to read the value mapped on the scale at this point before and after the test cone is lowered. The sinking depth of the test cone in the mortar can be obtained by the difference between the two values, and then the consistency of the mortar can be obtained;

[0017] 3. When reading on the scale using the top edge of the slide, you can flip the fixed frame to position the magnifying glass at the reading point. In this case, the magnifying glass can visually magnify the scale lines on the scale, making reading more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a mortar consistency measuring device in Example 1 of the present application;

[0019] Figure 2 It is a cross-sectional stereoscopic view of a limiting sleeve of a mortar consistency measuring device in Example 1 of the present application;

[0020] Figure 3 This is a three-dimensional diagram of a limit sleeve of a mortar consistency measuring device in Example 2 of the present application.

[0021] Description of Figure Numbers:

[0022] Base 1, pillar 2, fixing sleeve 3, connecting plate 4, limiting sleeve 5, sliding sleeve 501, fixing box 502, measuring rod 6, rod body 601, scale 602, rack 603, test cone 7, conical cylinder 8, magnet sheet 9, sliding rod 10, paddle 11, spring 12, supporting plate 13, tooth block 14, gear 15, rotating shaft 16, bearing 17, fixing frame 18, magnifying glass 19. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0024] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0025] Example 1

[0026] Refer to the attached Figure 1-2 The present application provides a mortar consistency measuring device, including a base 1, a test cone 7 and a cone 8, all of which are existing components of the existing mortar consistency meter, so the specifications can be customized with reference to the existing equipment. A supporting mechanism is provided on the top of the base 1, and the supporting mechanism is used to support the test cone 7 so that it can be in a suspended state, thereby facilitating the subsequent measurement step of sinking in the mortar. The supporting mechanism includes a pillar 2, a guide assembly and a limit assembly. The guide assembly is used to guide the lifting and lowering of the test cone 7 so that the lifting and lowering process can be carried out along the Y-axis direction, thereby ensuring that the sinking distance of the test cone 7 in the mortar can represent the mortar consistency. The guide assembly includes a measuring rod 6 and a limit sleeve 5. The limit sleeve 5 is set on the outside of the measuring rod 6. The cone 7 is fixedly connected to the bottom end of the measuring rod 6, and the two are on the same axis. The measuring rod 6 includes a rod body 601 and a rack 603. The inner wall of the limit sleeve 5 and the outer walls of the rod body 601 and the rack 603 are all smoothed. The rack 603 is fixedly connected to one side of the rod body 601. The limit assembly is used to fix the position of the test cone 7 after it is raised or lowered. The limit assembly includes a gear 15 and a tooth block 14. The gear 15 is meshed with the rack 603 and the tooth block 14. Therefore, the movement of the rack 603 is synchronized with the rotation of the gear 15. Therefore, it is only necessary to use the tooth block 14 to clamp the gear 15 to limit its rotation, so as to limit the movement of the rack 603, thereby fixing the suspended or sunken state of the test cone 7.

[0027] Preferably, the pillar 2 and the conical cylinder 8 are respectively fixedly connected to both sides of the top of the base 1, and the outer sleeve of the pillar 2 is provided with a fixing sleeve 3, one side of the fixing sleeve 3 is provided with a threaded through hole, and the fixing sleeve 3 is threadedly connected with a bolt at the threaded through hole, and the bolt fixes the fixing sleeve 3 and the pillar 2, and the other side of the fixing sleeve 3 is fixedly connected to a connecting plate 4, and the limiting sleeve 5 is fixedly connected to one end of the connecting plate 4. The conical cylinder 8 is located below the test cone 7, and the conical cylinder 8 and the test cone 7 are on the same axis, so the descent of the test cone 7 will surely penetrate and sink from the middle of the mortar in the conical cylinder 8.

[0028] Preferably, the limit sleeve 5 includes a sliding sleeve 501 and a fixed box 502. The sliding sleeve 501 is sleeved on the outside of the measuring rod 6, and the sliding sleeve 501 is adapted to the measuring rod 6, that is, the measuring rod 6 can move in a sliding manner on the outside of the sliding sleeve 501, and this process is also the movement process of the test cone 7. A rectangular opening is opened at the bottom end of one side of the sliding sleeve 501, and the fixed box 502 is fixedly connected to the sliding sleeve 501 at the rectangular opening. A rotating shaft 16 is fixedly connected between the inner walls on both sides of the fixed box 502, and a bearing 17 is fixedly connected to the outside of the rotating shaft 16. The gear 15 is connected to the outside of the bearing 17 by a key. The bearing 17 includes an outer ring, The inner ring and several steel balls arranged between the inner and outer rings, the outer ring is fixedly connected to the gear 15, and the inner ring is fixedly connected to the rotating shaft 16; in addition to the above-mentioned arrangement, the bearing 17 can also be used to allow one end of the rotating shaft 16 to be rotatably connected to the inner wall of the fixed box 502, and the other end of the rotating shaft 16 extends to the outside of 502 and is connected to the knob, while the gear 15 is connected to the outside of the rotating shaft 16 by a key. This not only maintains the low friction effect of the rotation of the gear 15, but also allows the gear 15 to drive the rack 603 to move by turning the knob, so that the test cone 7 can be adjusted to rise after the measurement is completed.

[0029] Preferably, the side wall of the sliding sleeve 501 is fixedly connected with a support plate 13 at the top of the fixed box 502, and a circular through hole is provided on the plate body of the support plate 13, and a sliding rod 10 is provided at the circular through hole. The support plate 13 is a guiding component of the sliding rod 10, and the vertical degree of the sliding rod 10 moving up and down can be ensured by the circular through hole. The tooth block 14 is fixedly connected to the bottom end of the sliding rod 10, and a bayonet is provided at one side of the top of the fixed box 502, and the tooth block 14 is adapted to the bayonet, and the tooth block 14 extends to the interior of the fixed box 502 at the bayonet. The elastic force of the spring 12 pulls the paddle 11, and the sliding rod 10 can push the tooth block 14 from the bayonet into the fixed box 502. At this time, the tooth block 14 can clamp the gear 15, and then limit the test cone 7 through the rack 603. The top of the slide bar 10 is fixedly connected with a paddle 11, which is made of iron, and a spring 12 is fixedly connected between the paddle 11 and the support plate 13 at the outside of the slide bar 10, and the spring 12 is a tension spring. The side wall of the fixed box 502 is fixedly connected with a magnet sheet 9 at the top of the paddle 11, and the distance between the magnet sheet 9 and the support plate 13 is greater than the initial length of the spring 12. When the test cone 7 needs to be released to make it fall, it is only necessary to push the paddle 11 upward to make it contact with the magnet sheet 9, so that the tooth block 14 can be separated from the gear 15. At this time, the test cone 7 can be lowered by its own gravity. Since the engagement of the latch block 14 and the gear 15 is completed by the elastic force of the spring 12, the test cone 7 can be quickly fixed. The separation of the latch block 14 and the gear 15 is at the moment of falling off. The test cone 7 can be lowered due to gravity. Therefore, the fixing process of the test cone 7 after the lifting and lowering can become an instantaneous response, so that the measurement reading time of the specified duration of 10 seconds can be grasped more accurately, thereby ensuring that the measurement process strictly meets the requirements of the specification, so that the accuracy and reliability of the measurement results can be guaranteed.

[0030] Preferably, a strip groove is provided on one side of the rod body 601, and a scale 602 is fixedly connected to the rod body 601 at the strip groove. Before the test cone 7 descends, the edge of the top of the sliding sleeve 501 can be used as a reference line to read and record on the scale 602. After the test cone 7 descends, it is necessary to read and record again on the scale 602 based on the above-mentioned reference line. The difference between the two data is the sinking depth of the test cone 7, and then the consistency of the mortar can be calculated. The thickness of the scale 602 is equal to the depth of the strip groove. Therefore, the existence of the scale 602 will not affect the flatness of the surface of the rod body 601, nor will it cause friction resistance during its movement.

[0031] Working principle: When measuring the consistency of mortar, after adjusting the suspended height of the test cone 7, push the pick 11 down to separate from the magnet sheet 9. At this time, the spring 12 will pull the slide bar 10 down through its own elastic force, so that the tooth block 14 enters the fixed box 502 and locks the gear 15. Since the gear 15 is meshed with the rack 603, the measuring rod 6 and the test cone 7 can be fixed in a suspended state. At this time, the corresponding value on the scale 602 can be read and recorded at the edge of the sliding sleeve 501, and then the mortar can be loaded into the cone 8 and compacted;

[0032] Then, while ensuring that the test cone 7 is aligned with the cone 8, the pick 11 can be lifted upward until it is close to the magnet sheet 9. At this time, the magnet sheet 9 can adsorb and fix the pick 11, so the tooth block 14 will be separated from the gear 15 and be in a suspended state. When the gear 15 can rotate freely, the test cone 7 will fall by its own gravity and sink freely in the mortar.

[0033] In the above process, a stopwatch can be used to record the time, and after the measured time reaches 10 seconds, the slide rod 10 is pushed down again to allow the tooth block 14 to re-engage the gear 15. At this time, the corresponding value on the scale 602 can be read and recorded at the edge of the sleeve 501 again, and the difference between the two values ​​is recorded as the sinking depth of the test cone 7, and then the consistency of the mortar can be calculated.

[0034] Example 2

[0035] Refer to the attached Figure 3 The present application provides a mortar consistency measuring device. Compared with Example 1, in order to facilitate reading, a fixed frame 18 is rotatably connected to the top of one side of the sliding sleeve 501 close to the scale 602 through a damping shaft, and a magnifying glass 19 is fixedly connected to the inner side of the fixed frame 18. When reading on the scale 602, the fixed frame 18 can be flipped to allow the magnifying glass 19 to be located at the assumed reference line of the top edge of the sliding sleeve 501. At this time, the magnifying glass 19 can visually magnify the scale lines on the scale 602, so that reading can be facilitated.

[0036] Working principle: When reading the scale value from the scale ruler 602 at the edge of the sliding sleeve 501, the magnifying glass 19 can be placed at the reading point by toggling the fixed frame 18 upward. At this time, the magnifying glass 19 can visually magnify the scale lines on the scale ruler 602, making reading more convenient.

[0037] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mortar consistency measuring device, comprising a base (1), a test cone (7) and a cone cylinder (8), characterized in that: A support mechanism is provided on the top of the base (1), the support mechanism comprising a pillar (2), a guide assembly and a limit assembly, the guide assembly being used for guiding the lifting and lowering of the test cone (7), the guide assembly comprising a measuring rod (6) and a limit sleeve (5), the limit sleeve (5) being sleeved on the outside of the measuring rod (6), the test cone (7) being fixedly connected to the bottom end of the measuring rod (6), the measuring rod (6) comprising a rod body (601) and a rack (603), the rack (603) being fixedly connected to one side of the rod body (601), the limit assembly being used for fixing the position of the test cone (7) after lifting and lowering, the limit assembly comprising a gear (15) and a tooth block (14), the gear (15) being meshed with both the rack (603) and the tooth block (14).

2. A mortar consistency measuring device according to claim 1, characterized in that: The support (2) and the conical cylinder (8) are respectively fixedly connected to both sides of the top of the base (1); a fixing sleeve (3) is sleeved on the outside of the support (2); a threaded through hole is opened on one side of the fixing sleeve (3); a bolt is threadedly connected to the threaded through hole of the fixing sleeve (3); a connecting plate (4) is fixedly connected to the other side of the fixing sleeve (3); the limiting sleeve (5) is fixedly connected to one end of the connecting plate (4); the conical cylinder (8) is located below the test cone (7); and the conical cylinder (8) and the test cone (7) are on the same axis.

3. A mortar consistency measuring device according to claim 1, characterized in that: The limiting sleeve (5) comprises a sliding sleeve (501) and a fixed box (502); the sliding sleeve (501) is sleeved on the outside of the measuring rod (6), and the sliding sleeve (501) is adapted to the measuring rod (6); a rectangular opening is provided at the bottom end of one side of the sliding sleeve (501); the fixed box (502) is fixedly connected to the sliding sleeve (501) at the rectangular opening; a rotating shaft (16) is fixedly connected between the inner walls on both sides of the fixed box (502); a bearing (17) is fixedly connected to the outside of the rotating shaft (16); and the gear (15) is connected to the outside of the bearing (17) via a key.

4. A mortar consistency measuring device according to claim 3, characterized in that: The side wall of the sliding sleeve (501) is fixedly connected to a support plate (13) at the top end of the fixed box (502); a circular through hole is provided on the plate body of the support plate (13); and a sliding rod (10) is provided at the circular through hole of the support plate (13); the latching tooth block (14) is fixedly connected to the bottom end of the sliding rod (10); a bayonet is provided at one side of the top end of the fixed box (502); the latching tooth block (14) is adapted to the bayonet, and the latching tooth block (14) extends to the interior of the fixed box (502) at the bayonet.

5. A mortar consistency measuring device according to claim 4, characterized in that: A paddle (11) is fixedly connected to the top of the slide bar (10), the material of the paddle (11) is iron, and a spring (12) is fixedly connected between the paddle (11) and the support plate (13) on the outside of the slide bar (10), the spring (12) is a tension spring, and a magnet sheet (9) is fixedly connected to the side wall of the fixed box (502) at the top of the paddle (11), and the distance between the magnet sheet (9) and the support plate (13) is greater than the initial length of the spring (12).

6. A mortar consistency measuring device according to claim 3, characterized in that: A strip-shaped groove is provided on one side of the rod body (601), and a scale (602) is fixedly connected to the rod body (601) at the strip-shaped groove, and the thickness of the scale (602) is equal to the depth of the strip-shaped groove.

7. A mortar consistency measuring device according to claim 6, characterized in that: The top end of one side of the sliding sleeve (501) close to the scale (602) is rotatably connected to a fixed frame (18) via a damping shaft, and a magnifying glass (19) is fixedly connected to the inner side of the fixed frame (18).

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