Concrete gas content tester

Abstract

The utility model discloses a concrete gas content tester which comprises a measuring bowl, a bowl cover is arranged at the top of the measuring bowl, a fixing seat is arranged on the upper side of the outer wall of the measuring bowl, the concrete gas content tester further comprises four lifting cavities which are formed in the upper end of the interior of the fixing seat, and the lifting cavities are annularly distributed at equal intervals. Double-thread transmission rods are rotationally arranged in the lifting cavities, L-shaped clamping blocks are in threaded connection with the upper sides and the lower sides of the outer portions of the double-thread transmission rods, one ends of the L-shaped clamping blocks penetrate through and extend to the outer portions of the lifting cavities, the L-shaped clamping blocks are in sliding fit with the lifting cavities, and guide grooves are formed in one sides of the double-thread transmission rods. And the guide grooves are in sliding fit with the L-shaped clamping blocks. When the concrete gas content tester is used in the whole process, the bowl cover can be disassembled and assembled only by starting the servo motor, so that the bowl cover is disassembled and assembled conveniently and quickly, the disassembling and assembling time is saved, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a concrete air content measuring instrument. Background Art

[0002] The concrete air content meter is used to measure the air content in the mixture. Concrete can be divided into two components, namely coarse aggregate and mortar. The size of the coarse aggregate has almost no direct effect on the air content. The introduced bubbles are distributed in the fine particles of concrete, namely the mortar, and the performance of the entire concrete is determined by the performance of the mortar. If the amount of air in the concrete exceeds the standard, it will directly affect the quality of the building. Therefore, it is necessary to detect the gas content in the concrete.

[0003] The existing Chinese patent with announcement number CN213689273U discloses a concrete air content measuring instrument, including a measuring bowl, a bowl cover is arranged on the measuring bowl, a plurality of clamping components are distributed on the bowl cover along its circumferential direction, an air cavity is arranged on the side of the bowl cover away from the measuring bowl, the air cavity is located at the center of the bowl cover, a pressure gauge, an air pump and a water injection port are arranged on the top of the bowl cover, the pressure gauge is a digital pressure gauge, and the outer cover of the pressure gauge is provided with a protective cover.

[0004] Although the above scheme has the effect of improving the reading accuracy, the device needs to rotate the adjustment block multiple times when disassembling the bowl cover, which makes the disassembly and assembly process more troublesome and affects the efficiency of detection. At the same time, the device lacks automatic stirring of the concrete mixture when used, and the detection is more troublesome. Therefore, it does not meet the existing needs. In this regard, we propose a concrete air content measuring instrument. Utility Model Content

[0005] The utility model aims to provide a concrete air content measuring instrument to solve the problems in the above background technology that the concrete air content measuring instrument is troublesome to disassemble and assemble the bowl cover, which affects the detection efficiency and lacks the automatic mixing function.

[0006] To achieve the above object, the utility model provides the following technical solution: a concrete air content measuring instrument, comprising a measuring bowl, a bowl cover is arranged on the top of the measuring bowl, and a fixing seat is arranged on the upper side of the outer wall of the measuring bowl;

[0007] It also includes a lifting cavity, which is opened at the upper end of the interior of the fixing seat, and four lifting cavities are opened in a circular shape and equidistantly distributed, and double-threaded transmission rods are rotatably arranged inside the lifting cavities, and L-shaped clamping blocks are threadedly connected to the upper and lower sides of the exterior of the double-threaded transmission rods, and one end of the L-shaped clamping block passes through and extends to the exterior of the lifting cavity, and the L-shaped clamping block is slidably matched with the lifting cavity, and a guide groove is opened on one side of the double-threaded transmission rod, and the guide groove is slidably matched with the L-shaped clamping block;

[0008] It also includes a second transmission chamber, which is opened at the lower end of the measuring bowl, and stirring shafts are rotatably arranged on both sides of the second transmission chamber, and one end of the stirring shaft passes through and extends to the outside of the second transmission chamber, and two groups of stirring blades are welded to the outer wall of the stirring shaft at one end outside the second transmission chamber, and each group of stirring blades is welded with four stirring blades distributed equidistantly in a ring.

[0009] Preferably, a first transmission cavity is opened on one side of the front end and the other side of the rear end of the fixed seat, a first rotating shaft is fixedly provided at the lower end of the double-threaded transmission rod, one end of the first rotating shaft passes through and extends into the first transmission cavity, and the first rotating shaft is rotatably connected to the first transmission cavity, a second rotating shaft is rotatably provided inside the first transmission cavity, and one end of the first rotating shaft located inside the first transmission cavity is connected to the second rotating shaft through a transmission belt.

[0010] Preferably, first servo motors are provided at middle positions on both sides of the fixing seat, and output ends of the first servo motors are transmission-connected to one of the first rotating shafts via a coupling.

[0011] Preferably, a second servo motor is provided on one side of the lower end of the second transmission chamber, and one end of the second servo motor is transmission-connected to one of the stirring shafts via a coupling.

[0012] Preferably, a transmission gear is fixedly provided at one end of the stirring shaft located inside the second transmission cavity, and the transmission gears are meshingly connected.

[0013] Preferably, four sliding cavities equidistantly distributed in an annular shape are opened at the upper end of the measuring bowl, four connecting blocks equidistantly distributed in an annular shape are welded to the lower end of the bowl cover, and sliding blocks are welded to the lower ends of the connecting blocks, and the sliding blocks are adapted to the sliding cavities.

[0014] Preferably, the outer sides of the measuring bowl and the upper ends of the bowl cover are each provided with four annular and equidistantly distributed card slots, and the card slots are all adapted to the L-shaped card blocks.

[0015] Preferably, a rubber gasket is bonded and fixed to the outer side of the lower end of the bowl cover.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model opens four lifting chambers in annular and equidistant distribution at the upper end of the fixing seat, starts the servo motor, and can realize the synchronous rotation of the four first rotating shafts under the drive of the transmission belt, which can drive the synchronous rotation of the double-threaded transmission rod. The rotation of the double-threaded transmission rod can make the two L-shaped clamping blocks move toward each other, so that they can be clamped into the inside of the clamping slot, so that the bowl cover and the measuring bowl are firmly fixed. The whole use can be completed by starting the servo motor, which makes the disassembly and assembly of the bowl cover convenient and quick, saves the time of disassembly and assembly, and improves the efficiency of detection.

[0018] 2. The utility model has four sliding cavities equidistantly distributed in an annular shape at the upper end of the measuring bowl. When the bowl cover is fitted with the measuring bowl, the slider will move into the sliding cavity. The bowl cover is then rotated to make the slider rotate in the sliding cavity, thereby limiting the slider to prevent the bowl cover from moving up and falling out. At the same time, the rubber gasket can increase the sealing performance to avoid affecting the detection results.

[0019] 3. The utility model opens a second transmission chamber at the lower end of the measuring bowl. By starting the second servo motor in the second transmission chamber, the two stirring shafts can rotate synchronously. The two stirring shafts can drive the stirring blades to rotate synchronously to form a stirring vortex. A vortex effect can be generated between the two stirring vortices, thereby increasing the stirring effect and making detection more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view schematic diagram of the internal structure of the utility model;

[0021] Figure 2 It is a top view schematic diagram of the internal structure of the lifting chamber of the utility model;

[0022] Figure 3 It is a schematic top view of the internal structure of the first transmission chamber of the utility model;

[0023] Figure 4 For the utility model Figure 1 A partial enlarged view of area A.

[0024] In the figure: 1. measuring bowl; 2. bowl cover; 3. fixing seat; 4. lifting chamber; 5. double-threaded transmission rod; 6. L-shaped clamping block; 7. guide groove; 8. clamping groove; 9. sliding cavity; 10. connecting block; 11. sliding block; 12. rubber gasket; 13. first rotating shaft; 14. second rotating shaft; 15. transmission belt; 16. first servo motor; 17. first transmission cavity; 18. second transmission cavity; 19. second servo motor; 20. transmission gear; 21. stirring shaft; 22. stirring blade. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] See also Figure 1-4 The utility model provides a technical solution: a concrete air content measuring instrument, comprising a measuring bowl 1, a bowl cover 2 is arranged on the top of the measuring bowl 1, and a fixing seat 3 is arranged on the upper side of the outer wall of the measuring bowl 1;

[0027] It also includes a lifting chamber 4, which is opened at the upper end of the fixed seat 3, and the lifting chambers 4 are opened in a circular shape with four equidistant distributions, and the inside of the lifting chamber 4 is rotatably provided with a double-threaded transmission rod 5, and the upper and lower sides of the outer side of the double-threaded transmission rod 5 are threadedly connected with an L-shaped block 6, one end of the L-shaped block 6 passes through and extends to the outside of the lifting chamber 4, and the L-shaped block 6 is slidably matched with the lifting chamber 4, and a guide groove 7 is opened on one side of the double-threaded transmission rod 5, and the guide groove 7 is slidably matched with the L-shaped block 6;

[0028] It also includes a second transmission chamber 18, which is opened at the lower end of the measuring bowl 1, and stirring shafts 21 are rotatably arranged on both sides of the second transmission chamber 18, and one end of the stirring shaft 21 passes through and extends to the outside of the second transmission chamber 18, and two groups of stirring blades 22 are welded to the outer wall of the stirring shaft 21 at one end outside the second transmission chamber 18, and each group of stirring blades 22 are welded with four stirring blades 22 distributed evenly in a ring.

[0029] When in use, start the first servo motor 16 to rotate one of the first rotating shafts 13, and the other first rotating shaft 13 can be rotated under the transmission of the transmission belt 15 and the second rotating shaft 14, so as to realize the synchronous rotation of the four first rotating shafts 13, and the first rotating shaft 13 will make the double-threaded transmission rod 5 drive the two L-shaped blocks 6 to rotate, and under the axial limiting action of the guide groove 7, the rotation of the two L-shaped blocks 6 will be converted into opposite or opposite vertical movement, and the two L-shaped blocks 6 will be stuck in the inside of the slot 8 when moving towards each other, so that the bowl 1 and the bowl cover 2 can be clamped and fixed, and the installation of the bowl cover 2 can be completed quickly.

[0030] See also Figure 1 and Figure 3A first transmission cavity 17 is provided on one side of the front end and the other side of the rear end of the fixed seat 3, and a first rotating shaft 13 is fixedly provided at the lower end of the double-threaded transmission rod 5, one end of the first rotating shaft 13 passes through and extends into the first transmission cavity 17, and the first rotating shaft 13 is rotatably connected with the first transmission cavity 17, and a second rotating shaft 14 is rotatably provided inside the first transmission cavity 17, and one end of the first rotating shaft 13 located inside the first transmission cavity 17 is connected to the second rotating shaft 14 through a transmission belt 15, and the arrangement of the transmission belt 15 and the second rotating shaft 14 can realize the synchronous rotation between the two first rotating shafts 13;

[0031] See also Figure 1 A first servo motor 16 is disposed at the middle position of both sides of the fixing seat 3, and the output end of the first servo motor 16 is connected to one of the first rotating shafts 13 through a coupling, and the first servo motor 16 provides power for clamping and fixing the L-shaped clamping block 6;

[0032] See also Figure 1 A second servo motor 19 is disposed on one side of the lower end of the second transmission chamber 18, and one end of the second servo motor 19 is connected to one of the stirring shafts 21 through a coupling, and the second servo motor 19 provides power for the rotation of the stirring shaft 21;

[0033] See also Figure 1 , a transmission gear 20 is fixedly provided at one end of the stirring shaft 21 located inside the second transmission chamber 18, and the transmission gears 20 are meshedly connected with each other, and the meshing connection of the transmission gears 20 realizes the synchronous rotation of the two stirring shafts 21;

[0034] See also Figure 3 and Figure 4 The upper end of the measuring bowl 1 is provided with four circular equidistantly distributed sliding cavities 9, and the lower end of the bowl cover 2 is welded with four circular equidistantly distributed connecting blocks 10, and the lower ends of the connecting blocks 10 are welded with sliders 11, and the sliders 11 are adapted to the sliding cavities 9. After the sliders 11 slide in the sliding cavities 9, they can be limited by the sliding cavities 9, thereby limiting the sliders 11, preventing the bowl cover 2 from moving up and falling out, and improving stability;

[0035] See also Figure 1 The outer sides of the upper ends of the measuring bowl 1 and the bowl cover 2 are provided with four annular slots 8 equidistantly distributed, and the slots 8 are adapted to the L-shaped card blocks 6. After the L-shaped card blocks 6 are inserted into the slots 8, the measuring bowl 1 and the bowl cover 2 can be firmly fixed;

[0036] See also Figure 4 A rubber gasket 12 is bonded and fixed to the outer side of the lower end of the bowl cover 2, and the rubber gasket 12 can increase the sealing performance of the bowl 1 and the bowl cover 2 after they are fixed.

[0037] Working principle: When in use, the concrete mixture is put into the measuring bowl 1, and the second servo motor 19 is started. Under the transmission of the coupling, one of the stirring shafts 21 can be rotated, and the stirring shaft 21 will drive one of the transmission gears 20 to rotate. Since the two transmission gears 20 are meshed, the other transmission gear 20 will drive the other stirring shaft 21 to rotate, so as to realize the synchronous rotation of the two stirring shafts 21. The rotation of the two stirring shafts 21 will drive the stirring blades 22 to rotate synchronously, so as to generate a stirring vortex, and a vortex effect will be generated between the two stirring vortices, which increases the stirring efficiency. The effect makes the detection more convenient. After mixing and combining, the concrete mixture is scraped flat by a scraper, and then the bowl cover 2 is fitted with the upper end of the measuring bowl 1, and the slider 11 is moved into one side of the slide cavity 9. The bowl cover 2 is rotated, and the slider 11 can be connected to the inner end of the slide cavity 9 through the connection of the connecting block 10, so that the slider 11 can be limited, and the bowl cover 2 can be prevented from moving up and falling out, thereby improving stability. The first servo motor 16 is started, and one of the first rotating shafts 13 is rotated under the transmission of the coupling, and the first rotating shaft 13 can rotate the second rotating shaft 14 through the transmission connection of the transmission belt 15. The second rotating shaft 14 can make another first rotating shaft 13 rotate through the transmission of another transmission belt 15, so that the four first rotating shafts 13 can be rotated synchronously when the first servo motors 16 on both sides are started. The rotation of the first rotating shaft 13 will drive the double-threaded transmission rod 5 to rotate, and the rotation of the double-threaded transmission rod 5 will drive the two L-shaped clamping blocks 6 to rotate. Since the L-shaped clamping blocks 6 are slidably matched with the guide groove 7, the L-shaped clamping blocks 6 will be axially limited. The rotation of the two L-shaped clamping blocks 6 will be converted into opposite or opposite vertical movements. When the two L-shaped clamping blocks 6 move toward each other, they will be stuck in the inside of the clamping groove 8. Thereby, the measuring bowl 1 and the bowl cover 2 can be clamped and fixed, and the installation of the bowl cover 2 can be completed quickly. Moreover, by clamping and fixing the measuring bowl 1 and the bowl cover 2, the rubber gasket 12 at the lower end of the bowl cover 2 can be squeezed and fitted to the measuring bowl 1, thereby effectively improving the sealing performance and avoiding affecting the detection result. When the bowl cover 2 needs to be removed, it is only necessary to rotate the first servo motor 16 in the opposite direction to move the two L-shaped blocks 6 in opposite directions, thereby releasing the clamping and fixing of the card slot 8, and conveniently releasing the fixing of the measuring bowl 1 and the bowl cover 2, making the disassembly and assembly of the bowl cover 2 convenient and quick, saving the time for disassembly and assembly, and improving the efficiency of detection.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A concrete air content measuring instrument, comprising a measuring bowl (1), a bowl cover (2) being arranged on the top of the measuring bowl (1), and a fixing seat (3) being arranged on the upper side of the outer wall of the measuring bowl (1), characterized in that: It also includes a lifting chamber (4) which is opened at the upper end of the interior of the fixing seat (3), and the lifting chambers (4) are provided with four lifting chambers (4) which are equidistantly distributed in a ring shape, and the interior of the lifting chamber (4) is rotatably provided with a double-threaded transmission rod (5), and the upper and lower sides of the exterior of the double-threaded transmission rod (5) are threadedly connected with an L-shaped clamping block (6), one end of the L-shaped clamping block (6) passes through and extends to the exterior of the lifting chamber (4), and the L-shaped clamping block (6) is slidably matched with the lifting chamber (4), and a guide groove (7) is opened on one side of the double-threaded transmission rod (5), and the guide groove (7) is slidably matched with the L-shaped clamping block (6); It also comprises a second transmission chamber (18) which is opened at the lower end of the measuring bowl (1), stirring shafts (21) are rotatably arranged on both sides of the second transmission chamber (18), and one end of the stirring shaft (21) passes through and extends to the outside of the second transmission chamber (18), and two groups of stirring blades (22) are welded to the outer wall of one end of the stirring shaft (21) located outside the second transmission chamber (18), and each group of stirring blades (22) has four stirring blades (22) welded thereto in an annular shape and equidistantly distributed.

2. A concrete air content measuring instrument according to claim 1, characterized in that: A first transmission cavity (17) is provided on one side of the front end and on the other side of the rear end of the fixed seat (3); a first rotating shaft (13) is fixedly provided at the lower end of the double-threaded transmission rod (5); one end of the first rotating shaft (13) penetrates and extends into the first transmission cavity (17), and the first rotating shaft (13) is rotatably connected to the first transmission cavity (17); a second rotating shaft (14) is rotatably provided inside the first transmission cavity (17); one end of the first rotating shaft (13) located inside the first transmission cavity (17) is connected to the second rotating shaft (14) through a transmission belt (15).

3. A concrete air content measuring instrument according to claim 2, characterized in that: A first servo motor (16) is provided at the middle position of both sides inside the fixing seat (3), and the output end of the first servo motor (16) is connected to one of the first rotating shafts (13) through a coupling.

4. The concrete air content measuring instrument according to claim 1, characterized in that: A second servo motor (19) is disposed on one side of the lower end of the second transmission chamber (18), and one end of the second servo motor (19) is connected to one of the stirring shafts (21) via a coupling.

5. The concrete air content measuring instrument according to claim 1, characterized in that: A transmission gear (20) is fixedly disposed on one end of the stirring shaft (21) located inside the second transmission chamber (18), and the transmission gears (20) are meshingly connected with each other.

6. A concrete air content measuring instrument according to claim 1, characterized in that: The upper end of the measuring bowl (1) is provided with four sliding cavities (9) which are equidistantly distributed in an annular shape. The lower end of the bowl cover (2) is welded with four connecting blocks (10) which are equidistantly distributed in an annular shape. The lower ends of the connecting blocks (10) are all welded with sliding blocks (11), and the sliding blocks (11) are all adapted to the sliding cavities (9).

7. A concrete air content measuring instrument according to claim 1, characterized in that: The outer sides of the upper ends of the measuring bowl (1) and the bowl cover (2) are each provided with four annularly equidistantly distributed clamping grooves (8), and the clamping grooves (8) are each adapted to fit the L-shaped clamping block (6).

8. The concrete air content measuring instrument according to claim 1, characterized in that: A rubber gasket (12) is bonded and fixed to the outer side of the lower end of the bowl cover (2).

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