Auxiliary device for cement density test

Abstract

The invention discloses an auxiliary device for a cement density test, and relates to the technical field of engineering test equipment, and the main points of the technical scheme are that the auxiliary device comprises a working table plate and shear type telescopic legs arranged at the lower end of the working table plate, the working table plate is provided with a placing hole for placing a funnel, and the upper end of the working table plate is provided with a lifting and supporting frame for supporting the funnel; a first mounting frame is further arranged on the working table plate, and a spiral shaft rod capable of extending into the funnel neck and the Lee's bottleneck part is rotationally arranged on the first mounting frame; a rocking handle is further rotationally arranged on the working table plate, chain wheels are arranged on the spiral shaft rod and the rocking handle, and the two sets of chain wheels are in transmission through a sleeved chain. Through the arrangement of the spiral shaft rod, cement can be directionally conveyed through the spiral shaft rod when the funnel is used for pouring cement into the Lee's bottle, and then the situation that the cement is retained on the neck wall part to cause blockage is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering test equipment, and particularly relates to an auxiliary device for cement density test. Background Art

[0002] The Le Chatelier flask method is the most commonly used method for testing the density of cement in current inspection and testing institutions. The main reference standard specification is GB / T 208-2014 "Method for Determination of Cement Density". This test method utilizes Archimedes' principle. The volume of cement particles is equal to the volume of the liquid it displaces, thereby obtaining the unit volume of cement. During actual tests, when loading cement into the Le Chatelier flask, it is very easy to adsorb on the inner wall of the neck or the inner wall of the funnel, easily causing blockage of the inner wall, affecting the test efficiency and accuracy.

[0003] In view of this, the present invention is designed to solve the above problems.

[0004] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the above deficiencies and provide an auxiliary device for cement density test.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An auxiliary device for cement density test, including a workbench board and scissor telescopic legs arranged at the lower end of the workbench board. A placement hole for placing a funnel is opened on the workbench board, and a lifting support frame for supporting the funnel is arranged at the upper end of the workbench board; a first mounting frame is also arranged on the workbench board, and a spiral shaft rod that can extend into the funnel neck and the neck part of the Le Chatelier flask is rotatably arranged on the first mounting frame; a crank is also rotatably arranged on the workbench board, sprockets are arranged on both the spiral shaft rod and the crank, and the two groups of sprockets are driven by a sleeved chain.

[0008] Further, the lifting support frame includes a fixed block fixed on the upper surface of the workbench board, a limiting plate movably inserted through the fixed block, a supporting rod arranged at one end of the limiting plate close to the placement hole, and a locking screw threadedly connected to the fixed block and abutted against the outer surface of the limiting plate.

[0009] Further, a rubber pad is arranged on the outer surface of the supporting rod.

[0010] Further, the inside of the spiral shaft rod is hollow and both ends are open. The upper part of the spiral shaft rod is provided with a suction pipe that communicates with it and has an enlarged inner diameter. The suction pipe is rotatably arranged on the first mounting bracket. A second mounting bracket is also arranged on the first mounting bracket. A suction fan located inside the suction pipe is rotatably arranged on the second mounting bracket, and the suction fan is driven by a driving component arranged on the second mounting bracket.

[0011] Further, the driving component includes a first crown gear rotatably arranged on the second mounting bracket, a connecting rod arranged between the first crown gear and the suction fan, a second crown gear arranged on the outer surface of the suction pipe, a third mounting bracket arranged on the first mounting bracket, and a transmission gear rotatably arranged on the third mounting bracket. The transmission gear meshes with the first crown gear and the third mounting bracket respectively.

[0012] Further, a spiral blade plate is arranged on the inner side of the lower opening of the spiral shaft rod.

[0013] Compared with the prior art, the beneficial effect of this solution is that: through the setting of the spiral shaft rod, when pouring cement into the Le Chatelier flask using a funnel, the cement can be directionally conveyed through the spiral shaft rod, thereby preventing the situation that the cement stays in the neck wall part and causes blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The schematic diagrams in the specification that form a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0015] Figure 1 is the front three-dimensional schematic diagram of the embodiment of the present invention;

[0016] Figure 2 is the structural schematic diagram of the upper part of the workbench board in the embodiment of the present invention;

[0017] Figure 3 is the structural schematic diagram of the upper part of the first mounting bracket in the embodiment of the present invention;

[0018] Figure 4 is the combined schematic diagram of the driving component and the spiral shaft rod in the embodiment of the present invention;

[0019] Figure 5 is the structural schematic diagram of the driving component in the embodiment of the present invention;

[0020] Figure 6 is the structural schematic diagram of the lifting support frame in the embodiment of the present invention;

[0021] Figure 7 is the cross-sectional structural schematic diagram of the spiral shaft rod in the embodiment of the present invention.

[0022] In the figure: 1. Workbench plate; 11. Scissor telescopic leg; 2. Placing hole; 21. First mounting bracket; 22. Spiral shaft rod; 23. Crank; 24. Sprocket; 25. Chain; 3. Fixed block; 31. Limiting plate; 32. Bracing rod; 33. Locking screw; 4. Suction pipe; 41. Second mounting bracket; 42. Suction fan; 5. First crown gear; 51. Connecting rod; 52. Second crown gear; 53. Third mounting bracket; 54. Driving tooth; 6. Spiral blade plate. Detailed implementation manner

[0023] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] As Figure 1-7 shown in the cement density test auxiliary device, which includes a workbench plate 1 and scissor telescopic legs 11 arranged at the lower end of the workbench plate 1. A placing hole 2 for placing a funnel is opened on the workbench plate 1, and a lifting support frame for supporting the funnel is arranged at the upper end of the workbench plate 1; a first mounting bracket 21 is also arranged on the workbench plate 1, and a spiral shaft rod 22 that can extend into the funnel neck and the Le Chatelier flask neck part is rotatably arranged on the first mounting bracket 21; a crank 23 is also rotatably arranged on the workbench plate 1, sprockets 24 are arranged on both the spiral shaft rod 22 and the crank 23, and the two groups of sprockets 24 are driven by sleeving a chain 25. When the device is in use, first, the overall height of the workbench plate 1 is lifted through the scissor telescopic legs 11, and then the funnel is passed through the spiral shaft rod 22 from the bottom and placed at the position of the placing hole 2, and then the funnel is stably supported by the lifting support frame. Then, the Le Chatelier flask is placed under the funnel from the bottom, and the funnel neck part extends into the bottleneck. Then, cement is poured into the funnel. At this time, the tester shakes the crank 23 by hand, and then drives the spiral shaft rod 22 to rotate through the chain 25, so that the cement in the funnel neck and the bottleneck part steadily enters the bottom of the flask under the conveying action of the spiral shaft rod 22, thereby preventing blockage.

[0025] In one embodiment, the lifting support frame includes a fixed block 3 fixed on the upper surface of the workbench plate 1, a limiting plate 31 movably inserted through the fixed block 3, a bracing rod 32 arranged at one end of the limiting plate 31 close to the placing hole 2, and a locking screw 33 threadedly inserted through the fixed block 3 and abutted against the outer surface of the limiting plate 31. By driving the bracing rod 32 through the limiting plate 31 to extend forward and backward, the bracing rod 32 can extend to the lower surface of the funnel bowl for lifting, and then the locking screw 33 is rotated to fix the limiting plate 31, so as to achieve the purpose of stably erecting the funnel.

[0026] In one embodiment, a rubber pad is provided on the outer surface of the support rod 32, thereby preventing rigid contact between the funnel and the support rod 32, increasing the friction force therebetween, and achieving a certain buffering effect to protect the funnel structure from damage.

[0027] In one embodiment, the spiral shaft rod 22 is hollow inside and open at both ends. A suction pipe 4 communicating with it and having an enlarged inner diameter is provided at its upper opening. The suction pipe 4 is rotatably arranged on the first mounting bracket 21. A second mounting bracket 41 is further provided on the first mounting bracket 21. A suction fan 42 located inside the suction pipe 4 is rotatably arranged on the second mounting bracket 41. The suction fan 42 is driven by a driving component provided on the second mounting bracket 41. By providing the suction fan 42 in the suction pipe 4, when the spiral shaft rod 22 is dredging or blocking, its lower opening position can still suck the inside of the bottle, so that a negative pressure is formed at the bottom of the bottle, and then a suction force is generated on the bottleneck and the funnel neck, so that the residual cement attached to the neck wall will flow towards the bottom of the bottle under the action of the suction force, further reducing the retention amount of cement on the neck wall part.

[0028] In one embodiment, the driving component includes a first crown gear 5 rotatably arranged on the second mounting bracket 41, a connecting rod 51 arranged between the first crown gear 5 and the suction fan 42, a second crown gear 52 arranged on the outer surface of the suction pipe 4, a third mounting bracket 53 arranged on the first mounting bracket 21, and a transmission gear 54 rotatably arranged on the third mounting bracket 53. The transmission gear 54 meshes with the first crown gear 5 and the third mounting bracket 53 respectively. When the spiral shaft rod 22 rotates to convey cement, the suction pipe 4 above it rotates accordingly, and the third mounting bracket 53 above the suction pipe 4 rotates synchronously, thereby driving the transmission gear 54 to rotate. The transmission gear 54 transmits power to the first crown gear 5, so that it drives the suction fan 42 to rotate through the connecting rod 51, thereby realizing the suction function.

[0029] In one embodiment, a spiral blade 6 is provided inside the lower opening of the spiral shaft rod 22, thereby preventing a small amount of cement from entering the inside of the spiral shaft rod 22 during the suction process and achieving a blocking effect.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A cement density test auxiliary device, comprising a workbench (1) and scissor-type telescopic legs (11) arranged at the lower end of the workbench (1), characterized in that: The workbench (1) is provided with a placement hole (2) for placing the funnel, and the upper end of the workbench (1) is provided with a lifting frame for supporting the funnel; A first mounting frame (21) is also provided on the workbench (1), and a spiral shaft (22) is rotatably provided on the first mounting frame (21) and can extend into the funnel neck and the bottleneck of the Lee bottle; A crank handle (23) is rotatably arranged on the workbench plate (1), and sprocket wheels (24) are arranged on the spiral shaft rod (22) and the crank handle (23), and the two groups of sprocket wheels (24) are driven by sleeve chains (25).

2. The cement density test auxiliary device according to claim 1, characterized in that: The lifting frame comprises a fixed block (3) fixed to the upper surface of the workbench (1), a limiting plate (31) movably connected to the fixed block (3), a supporting rod (32) arranged at one end of the limiting plate (31) close to the placement hole (2), and a locking screw (33) threadedly connected to the fixed block (3) and abutting against the outer surface of the limiting plate (31).

3. The cement density test auxiliary device according to claim 2, characterized in that: The outer surface of the bracing rod (32) is provided with a rubber pad.

4. The cement density test auxiliary device according to any one of claims 1 to 3, characterized in that: The interior of the spiral shaft (22) is hollow and open at both ends. The upper end portion thereof is provided with a suction pipe (4) which is connected thereto and has an enlarged inner diameter. The suction pipe (4) is rotatably arranged on a first mounting frame (21). A second mounting frame (41) is also arranged on the first mounting frame (21). A suction fan (42) located inside the suction pipe (4) is rotatably arranged on the second mounting frame (41), wherein the suction fan (42) is driven by a driving assembly arranged on the second mounting frame (41).

5. The cement density test auxiliary device according to claim 4, characterized in that: The driving assembly comprises a first crown gear (5) rotatably arranged on a second mounting frame (41), a connecting rod (51) arranged between the first crown gear (5) and the suction fan (42), a second crown gear (52) arranged on the outer surface of the suction pipe (4), a third mounting frame (53) arranged on the first mounting frame (21), and a transmission tooth (54) rotatably arranged on the third mounting frame (53), wherein the transmission tooth (54) is respectively meshed with the first crown gear (5) and the third mounting frame (53).

6. The cement density test auxiliary device according to claim 5, characterized in that: A spiral blade (6) is arranged inside the lower opening of the spiral shaft (22).

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