CN212932289U

CN212932289U - Portable concrete gas content measuring device

Info

Publication number: CN212932289U
Application number: CN202022060100.7U
Authority: CN
Inventors: 陈奕群
Original assignee: Guangxi Wanzhong Engineering Testing Co ltd
Current assignee: Guangxi Wanzhong Engineering Testing Co ltd
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-04-09
Anticipated expiration: 2030-09-19

Abstract

The utility model discloses a portable concrete air content survey device relates to concrete determination technical field. The utility model provides a portable concrete air content survey device, includes the box, the inside bottom surface of box rotates and is connected with the revolving stage, and the rigid coupling has first gear on the lateral wall of revolving stage, and the top of revolving stage is fixed with fixture, fixture's top swing joint has the alms bowl body, inside bottom surface one side of box rotates and is connected with first rotation pole. The utility model is simple in operation, convenient to use, not only solved the concrete and wrapped up in the phenomenon of holding the air in the concrete very easily when loading into the alms bowl, can exhaust fully to mixing earth when inserting moreover, improved the precision that the concrete gas content was surveyed.

Description

Portable concrete gas content measuring device

Technical Field

The utility model relates to a concrete determination technology field especially relates to a portable concrete gas content measuring device.

Background

The air content of the concrete refers to the percentage of the volume of air bubbles contained in the mortar in the concrete to the volume of the whole concrete. The air content measuring instrument for concrete is used to measure the air content in concrete mixture. Concrete is one of the most important civil engineering materials of the present generation. It is a mixture prepared by mixing cementing material, granular aggregate, water, additive and admixture according to a proper proportion. Numerous air bubbles are introduced during the mixing of concrete due to various factors, and the content of the air bubbles has numerous adverse effects on the workability, durability and strength of the concrete. The detection of the gas content of the concrete has important significance for measuring the performance of the hardened concrete.

However, in the prior art, most concrete gas content measurement is carried out in time with concrete adding into the measuring bowl, and air is wrapped in the concrete easily, so that the accuracy of measurement can be affected, and when manual insertion tamping is carried out on the concrete for exhausting, the manual insertion tamping is not sufficient, and the insertion tamping strength, range and times are irregular, so that different people can measure different gas content values, and therefore a portable concrete gas content measuring device is designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable concrete air content survey device has solved the air of wrapping up in by force very easily when the present most concrete volume of packing alms bowl in the concrete, and when artifical the inserting was smash and is carried out the exhaust to mixing earth in addition, the problem that leads to different people to measure different air content values.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a portable concrete air content measuring device comprises a box body, wherein the bottom surface inside the box body is rotatably connected with a rotating platform, the outer side wall of the rotating platform is fixedly connected with a first gear, a clamping mechanism is fixed above the rotating platform, the upper part of the clamping mechanism is movably connected with a bowl body, one side of the bottom surface inside the box body is rotatably connected with a first rotating rod, the outer side surface of the first rotating rod is fixedly connected with a second gear, a chain is sleeved between the first gear and the second gear, the top end of the first rotating rod is fixedly connected with a third gear, the inner wall of one side of the box body is connected with a fixing frame, rotating rods are rotatably connected on the inner walls of two sides of the fixing frame, the middle part of each rotating rod is fixedly connected with a cam, the lower end surface of the fixing frame is fixedly connected with a motor, the output shaft of the motor is in transmission connection with the, the limiting end of the knocking hammer is connected with the sliding groove in a sliding mode, a spring is fixedly connected between the limiting end of the knocking hammer and the inner wall of one side of the sliding groove, the upper end of the rotating rod penetrates through the upper end face of the fixing frame and is connected with a second rotating rod in a transmission mode, a fourth gear is sleeved on the outer side wall of the second rotating rod and is meshed with a third gear, the upper end of the second rotating rod penetrates through the upper end face of the box body and is connected with a first belt pulley, the upper end face of the box body is rotatably connected with a reciprocating screw rod, the upper end of the reciprocating screw rod penetrates through the upper end face of the box body and is fixedly connected with a second belt pulley, the first belt pulley and the second belt pulley are sleeved with a same.

Preferably, it cup joints the nut piece on reciprocating screw lateral wall including screw drive to insert smash the mechanism, and the one end rigid coupling of nut piece has the supporting shoe, and the bottom rigid coupling of supporting shoe has the bracing piece, and the bottom of bracing piece is connected with a plurality of evenly distributed's the pole of inserting and smashing.

Preferably, the clamping mechanism comprises a bearing plate fixed at the upper end of the rotating platform, a groove is formed in the upper end face of the bearing plate, a lead screw is rotatably connected between the inner walls of the two sides of the groove, moving blocks are sleeved on the outer walls of the two ends of the lead screw in a threaded manner, a clamping plate is fixedly connected to one side face, opposite to the two moving blocks, of the clamping plate, and one side face of the clamping plate is movably connected with the outer wall of one side of the pot.

Preferably, an air pump is installed on the upper end face of one side of the box body, a water pump is installed on the upper end face of the other side of the box body, and four universal wheels with brakes are installed on the bottom end face of the box body.

Preferably, the upper end of the bowl body is movably connected with a bowl cover, the two sides of the upper end face of the bowl cover are respectively provided with an air inlet and a water inlet, and the air inlet and the water inlet are respectively connected with the water pump and the air pump through an air guide pipe and a liquid guide pipe.

Preferably, the thread turning directions of the outer walls of the two ends of the screw rod are opposite, and the two moving blocks are respectively positioned at the two ends of the screw rod with different thread turning directions.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, rotate the lead screw earlier, because the screw thread on the lead screw revolves to opposite, so two movable blocks do the motion of being close to each other, make two grip blocks tightly fix the alms bowl body to fix the alms bowl body of equidimension not.

2. The utility model discloses in to adding a certain amount in the alms bowl body and mixing earth, starter motor, the motor drives the bull stick and rotates, the second dwang drives first belt pulley and rotates, under the cooperation of belt pulley and belt, reciprocating screw rotates, reciprocating motion about the nut piece is, it inserts to smash the pole to inserting to the muddy earth in the alms bowl body to drive, the fourth gear drives third gear simultaneously and rotates, the second gear drives first gear and rotates, make the alms bowl body on the revolving stage rotatory, it goes on simultaneously with rotatory to insert to smash, the air in the muddy earth of the discharge of being convenient for.

3. The utility model discloses in, the bull stick drives the cam and rotates, and the cam is constantly beaten to the bottom of knocking the hammer and is beaten, and under the effect of spring, the hammer is strikeed to the alms bowl body constantly, is convenient for like this reduce the air that the influence detected in the muddy earth, improves the precision of test.

Drawings

FIG. 1 is a schematic view of the front cross-sectional structure of the utility model when the bowl cover is not covered;

FIG. 2 is a schematic side view of the plate of the tamping mechanism of the present invention;

FIG. 3 is a schematic view of the sectional structure of the bowl cover in front view;

fig. 4 is a schematic side view of the adjusting mechanism of the present invention.

Reference numbers in the figures:

1. a box body; 2. a rotating table; 3. a first gear; 4. a clamping mechanism; 41. a carrier plate; 42. a screw rod; 43. a moving block; 44. a clamping plate; 5. a bowl body; 6. a first rotating lever; 7. a second gear; 8. a chain; 9. a third gear; 10. a fixed mount; 11. a rotating rod; 12. a cam; 13. a motor; 14. knocking hammers; 15. a spring; 16. a second rotating lever; 17. a fourth gear; 18. a first pulley; 19. a reciprocating screw; 20. a second pulley; 21. a tamping mechanism; 211. a nut block; 212. a support block; 213. a support bar; 214. inserting a tamping rod; 22. an air pump; 23. a water pump; 24. and (7) covering the bowl.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a portable concrete gas content measuring device comprises a box body 1, a rotating table 2 is rotatably connected to the inner bottom surface of the box body 1, a first gear 3 is fixedly connected to the outer side wall of the rotating table 2, a clamping mechanism 4 is fixed above the rotating table 2, a bowl body 5 is movably connected above the clamping mechanism 4, a first rotating rod 6 is rotatably connected to one side of the inner bottom surface of the box body 1, a second gear 7 is fixedly connected to the outer side surface of the first rotating rod 6, a chain 8 is sleeved between the first gear 3 and the second gear 7, a third gear 9 is fixedly connected to the top end of the first rotating rod 6, a fixing frame 10 is connected to the inner wall of one side of the box body 1, rotating rods 11 are rotatably connected to the inner walls of two sides of the fixing frame 10, a cam 12 is fixedly connected to the middle part of each rotating rod 11, a motor 13 is fixedly connected to the lower end surface, the inside sliding connection of mount 10 has strikes hammer 14, and seted up the spout on the mount 10 upper end inner wall, strike spacing end and the spout sliding connection of hammer 14, the rigid coupling has spring 15 between the spacing end of hammer 14 and the one side inner wall of spout, the up end that the mount 10 was passed to bull stick 11 upper end is connected with second dwang 16 in the transmission, and cup jointed fourth gear 17 on the lateral wall of second dwang 16, fourth gear 17 meshes with third gear 9 mutually, the upper end of second dwang 16 passes the up end of box 1 and is connected with first belt pulley 18, the up end of box 1 rotates and is connected with reciprocal screw rod 19, and the up end that reciprocal screw rod 19 passed the box 1 and the rigid coupling has second belt pulley 20, cup joint the same belt between first belt pulley 18 and the second belt pulley 20, install on the reciprocal screw rod 19 and insert and smash mechanism 21.

The inserting and smashing mechanism 21 comprises a nut block 211 which is sleeved on the outer side wall of the reciprocating screw rod 19 in a spiral transmission mode, one end of the nut block 211 is fixedly connected with a supporting block 212, the bottom end of the supporting block 212 is fixedly connected with a supporting rod 213, the bottom end of the supporting rod 213 is connected with a plurality of inserting and smashing rods 214 which are evenly distributed, and the inserting and smashing mechanism 21 can vertically reciprocate to insert and smash concrete in the pot body 5.

The clamping mechanism 4 comprises a bearing plate 41 fixed at the upper end of the rotating platform 2, a groove is formed in the upper end face of the bearing plate 41, a lead screw 42 is rotatably connected between the inner walls of the two sides of the groove, moving blocks 43 are sleeved on the outer walls of the two ends of the lead screw 42 in a threaded manner, a clamping plate 44 is fixedly connected to one side face of each of the two moving blocks 43, one side face of each clamping plate 44 is movably connected with the outer wall of one side of the pot body 5, and the clamping mechanism 4 can clamp the pot body 5 tightly.

Air pump 22 is installed to box 1 one side up end, and box 1 opposite side up end installs water pump 23, and four universal wheels of taking the brake are installed to box 1 bottom face, and the upper end swing joint of alms bowl body 5 has alms bowl lid 24, and the both sides of alms bowl lid 24 up end have seted up air inlet and water inlet respectively, and air inlet and water inlet are connected with water pump 23 and air pump 22 through air duct and catheter respectively, and the universal wheel is convenient for the removal of device.

The thread turning directions on the outer walls of the two ends of the screw rod 42 are opposite, the two moving blocks 43 are respectively positioned at the two ends of the screw rod 42 with different thread turning directions, and the screw rod 42 is rotated, so that the two moving blocks 43 move close to each other.

The working principle is as follows: when the device is used, the screw rod 42 is rotated, because the screw threads on the screw rod 42 are rotated in opposite directions, the two moving blocks 43 move close to each other, so that the two clamping plates 44 tightly fix the bowl bodies 5 to fix the bowl bodies 5 with different sizes, then a certain amount of concrete is added into the bowl bodies 5, the motor 13 is started, the motor 13 drives the rotating rod 11 to rotate, the second rotating rod 16 drives the first belt pulley 18 to rotate, the reciprocating screw rod 19 rotates under the cooperation of the belt pulley and the belt, the nut block 211 reciprocates up and down to drive the inserting and tamping rod 214 to insert and tamp the concrete in the bowl bodies 5, meanwhile, the fourth gear 17 drives the third gear 9 to rotate, the second gear 7 drives the first gear 3 to rotate, so that the bowl bodies 5 on the rotating platform 2 rotate, the inserting and tamping are carried out simultaneously, air in the concrete is discharged, and meanwhile, the rotating rod 11 drives the cam 12 to rotate, the cam 12 continuously strikes the bottom end of the striking hammer 14, the striking hammer 14 continuously strikes the bowl body 5 under the action of the spring 15, air influencing detection in concrete is reduced conveniently, the accuracy of the test is improved, after a plurality of steps are repeated, when the concrete is a little higher than the bowl body 5, a scraper is used for scraping off redundant concrete, the bowl cover 24 is covered, a water inlet and a gas inlet are respectively connected with the water pump 23 and the air pump 22, the air valve is opened, the air pump 22 injects gas into the bowl body 5, the water valve is opened at the same time, the water pump 23 injects water into the bowl body 5, the water injection valve is closed after water starts to flow backwards, the air valve is opened again, the air pump 22 continues to pressurize the bowl, the pressure gauge displays pressure slightly larger than 0.1MPA, then the pressure is adjusted to be at the position of a pressure line of 0.1MPA through a fine adjustment valve on the bowl cover 24, finally, a pressure balance valve on the bowl cover 24 is opened, and after a, and measuring the degree of the pressure gauge, and obtaining the gas content value of the measured concrete sample according to the relation curve of the gas content calibrated by the instrument and the reading of the pressure gauge.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A portable concrete gas content measuring device comprises a box body (1) and is characterized in that the bottom surface inside the box body (1) is rotatably connected with a rotating platform (2), a first gear (3) is fixedly connected to the outer side wall of the rotating platform (2), a clamping mechanism (4) is fixed above the rotating platform (2), a bowl body (5) is movably connected above the clamping mechanism (4), a first rotating rod (6) is rotatably connected to one side of the bottom surface inside the box body (1), a second gear (7) is fixedly connected to the outer side surface of the first rotating rod (6), a chain (8) is sleeved between the first gear (3) and the second gear (7), a third gear (9) is fixedly connected to the top end of the first rotating rod (6), a fixing frame (10) is connected to the inner wall on one side of the box body (1), and rotating rods (11) are rotatably connected to the inner walls on the two sides of the fixing frame (10), a cam (12) is fixedly connected to the middle of the rotating rod (11), a motor (13) is fixedly connected to the lower end face of the fixing frame (10), an output shaft of the motor (13) is in transmission connection with the rotating rod (11), a knocking hammer (14) is slidably connected to the inside of the fixing frame (10), a sliding groove is formed in the inner wall of the upper end of the fixing frame (10), a limiting end of the knocking hammer (14) is in sliding connection with the sliding groove, a spring (15) is fixedly connected between the limiting end of the knocking hammer (14) and the inner wall of one side of the sliding groove, the upper end of the rotating rod (11) penetrates through the upper end face of the fixing frame (10) and is in transmission connection with a second rotating rod (16), a fourth gear (17) is sleeved on the outer side wall of the second rotating rod (16), the fourth gear (17) is meshed with a third gear (9), and the upper end of the second rotating rod (16) penetrates through the upper, the upper end face of the box body (1) is rotatably connected with a reciprocating screw rod (19), the upper end of the reciprocating screw rod (19) penetrates through the upper end face of the box body (1) and is fixedly connected with a second belt pulley (20), a same belt is sleeved between the first belt pulley (18) and the second belt pulley (20), and an inserting and smashing mechanism (21) is installed on the reciprocating screw rod (19).

2. The portable concrete gas content measuring device according to claim 1, wherein the tamping mechanism (21) comprises a nut block (211) which is in screw transmission sleeved on the outer side wall of the reciprocating screw (19), one end of the nut block (211) is fixedly connected with a supporting block (212), the bottom end of the supporting block (212) is fixedly connected with a supporting rod (213), and the bottom end of the supporting rod (213) is connected with a plurality of uniformly distributed tamping inserting rods (214).

3. The portable concrete air content measuring device according to claim 1, wherein the clamping mechanism (4) comprises a bearing plate (41) fixed at the upper end of the rotating platform (2), a groove is formed in the upper end surface of the bearing plate (41), a lead screw (42) is rotatably connected between the inner walls of two sides of the groove, moving blocks (43) are respectively in threaded connection with the outer walls of two ends of the lead screw (42), a clamping plate (44) is fixedly connected to one side surface of each of two opposite moving blocks (43), and one side surface of the clamping plate (44) is movably connected with one outer wall of the pot body (5).

4. The portable concrete air content measuring device according to claim 1, wherein an air pump (22) is installed on the upper end face of one side of the box body (1), a water pump (23) is installed on the upper end face of the other side of the box body (1), and four universal wheels with brakes are installed on the bottom end face of the box body (1).

5. The portable concrete air content measuring device according to claim 1, wherein the upper end of the bowl body (5) is movably connected with a bowl cover (24), an air inlet and a water inlet are respectively formed on two sides of the upper end surface of the bowl cover (24), and the air inlet and the water inlet are respectively connected with the water pump (23) and the air pump (22) through an air duct and a liquid guide tube.

6. The portable concrete air content measuring device according to claim 3, wherein the screw threads on the outer walls of the two ends of the screw rod (42) are opposite in rotation direction, and the two moving blocks (43) are respectively located at the two ends of the screw rod (42) with different rotation directions.