Sand adding equipment for concrete test

Abstract

The utility model provides sand adding equipment for a concrete test, and belongs to the technical field of concrete tests. Comprising a support, a sand adding cylinder used for containing gravel is arranged at the top of the support, a discharging pipe is hinged to the bottom of the sand adding cylinder, an adjusting mechanism used for limiting the discharging flow is arranged on the discharging pipe, a plurality of sample cylinders used for collecting the gravel in the sand adding cylinder are externally connected to the lower portion of the sand adding cylinder, an observation window is arranged on one side of the sand adding cylinder, and scale marks are vertically arranged on the observation window. The discharging pipe is rotated and guided to a sample cylinder needing sand adding, and then the angle of the discharging pipe can be fixed by tightening the limiting bolt. According to the sand adding equipment, the sample cylinders do not need to be moved many times, sand adding work can be conducted on the multiple sample cylinders only by rotating the discharging pipe, and the effect of improving the working efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing, in particular to a sand adding device for concrete testing. Background Art

[0002] Before concrete is put into mass production, it must be tested to ensure that the various properties of the concrete meet the standards. During the sand adding process, the sand and gravel need to be stored in a bucket and then poured into the sample cylinder according to demand.

[0003] The patent with the announcement number CN211877981U discloses a sand adding device for concrete testing, including a bracket and a sand container disposed on the bracket for containing sand, the bottom of the sand container is connected to a discharge channel, a plug plate for opening and closing the discharge channel is plugged into the discharge channel, and a control mechanism for controlling the flow rate of the discharge channel is disposed on the discharge channel. The discharge channel flow rate can be controlled by the control mechanism, so that different discharge channel flow rates can be adapted when filling different sample cylinders to avoid excessive or slow discharge.

[0004] However, some concrete tests require multiple control tests. After adding sand to a sample tube, the equipment needs to insert a plug into the discharge channel to close the discharge channel, and then the staff will move the sample tube under the sand tube to the side before replacing the next sample tube. This process is repeated multiple times. Since the sample tube containing sand and gravel is heavy, it takes a long time to move the sample tube multiple times, resulting in low work efficiency. Utility Model Content

[0005] In view of the above problems, the utility model provides a sand adding device for concrete testing.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] Provided is a sand adding device for concrete testing, comprising a bracket, a sand adding cylinder for containing sand and gravel is arranged on the top of the bracket, a discharge pipe is hinged at the bottom of the sand adding cylinder, an adjusting mechanism for limiting the discharge flow is arranged on the discharge pipe, a plurality of sample cylinders for collecting sand and gravel in the sand adding cylinder are externally connected below the sand adding cylinder, an observation window is arranged on one side of the sand adding cylinder, and scale lines are vertically arranged on the observation window.

[0008] Furthermore, the discharge pipe comprises a fixed pipe and an extension pipe, the fixed pipe is hinged at the bottom of the sand adding cylinder, and the extension pipe is threadedly connected to one end of the fixed pipe away from the hinged head.

[0009] Furthermore, a first through hole is opened at the center position of the bottom of the sand adding cylinder, a mounting seat is arranged at the first through hole, a mounting hole connected with the first through hole is opened through the bottom of the mounting seat, a ball joint is rotatably arranged in the mounting hole, the fixing tube is hinged to the bottom of the sand adding cylinder through the ball joint, a second through hole is opened on the ball joint along the axial direction of the fixing tube, and a limit piece for limiting the rotation of the ball joint is provided on the mounting seat.

[0010] Furthermore, a dust cover connected to the edge of the second through hole is provided on the inner wall of the first through hole, and a channel for allowing sand and gravel to pass into the second through hole is provided on the inner side of the dust cover.

[0011] Furthermore, the limiting member includes a limiting bolt, and a threaded hole communicating with the mounting hole is horizontally opened on the side wall of the mounting seat, and the limiting bolt is threadedly connected in the threaded hole.

[0012] Furthermore, the adjusting mechanism includes a connecting tube and a first baffle coaxially fixed in the connecting tube, a second baffle is fixed at the discharge end of the extension tube, a notch is provided on the second baffle, the connecting tube is rotatably arranged at the discharge end of the extension tube, and the first baffle is in sliding contact with the second baffle, and a plurality of third through holes are provided on the first baffle, which are respectively used to communicate with the notches.

[0013] Furthermore, the connecting tube is coaxially rotatably sleeved on the outer wall of the extension tube, and a sealing ring is embedded between the inner wall of the connecting tube and the outer wall of the extension tube.

[0014] The beneficial effects of the utility model are as follows: the discharge pipe is rotated to guide the sample tube to be filled with sand, and then the angle of the discharge pipe can be fixed by tightening the limit bolt; the length of the discharge pipe can be adjusted by rotating the extension tube so that it can extend into the sample tube to be filled with sand; the discharge flow rate can be adjusted by rotating the connecting tube so that it can adapt to sample tubes of various capacities; during the sand adding process, the amount of sand added in the sample tube can be observed in real time through the scale line, and the staff does not need to move the sample tubes many times, and sand can be added to multiple sample tubes only by rotating the discharge pipe, which has the effect of improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a sand adding device for concrete testing according to an embodiment of the present application.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of a ball joint of a sand adding device for concrete testing according to an embodiment of the present application.

[0017] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A.

[0018] Figure 4 for Figure 2 A partial enlarged schematic diagram of part B.

[0019] Figure 5 This is a schematic diagram of the structure of the adjustment mechanism of a sand adding device for concrete testing according to an embodiment of the present application.

[0020] Among them, 1. bracket; 2. sand adding cylinder; 21. observation window; 22. scale line; 23. first through hole; 3. discharge pipe; 31. fixing pipe; 32. extension pipe; 4. adjustment mechanism; 41. connecting cylinder; 42. first baffle; 421. third through hole; 43. second baffle; 431. notch; 5. sample cylinder; 6. mounting seat; 61. mounting hole; 7. ball joint; 71. second through hole; 8. limit piece; 81. limit bolt; 9. sealing ring; 10. dust cover. DETAILED DESCRIPTION

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The present application embodiment discloses a sand adding device for concrete testing, referring to Figure 1 , Figure 2 and Figure 3 , including a bracket 1, a sand adding cylinder 2 for containing sand and gravel is welded on the top of the bracket 1, a discharge pipe 3 is hinged at the bottom of the sand adding cylinder 2, and a regulating mechanism 4 for limiting the discharge flow rate is installed on the discharge pipe 3. A plurality of sample cylinders 5 for collecting sand and gravel in the sand adding cylinder 2 are externally connected below the sand adding cylinder 2. An observation window 21 is installed on one side of the sand adding cylinder 2, and a scale line 22 is engraved on the observation window 21 along the vertical direction.

[0023] In the embodiment of the present application, since the discharge pipe 3 is hinged at the bottom of the sand adding tube 2, the sand and gravel in the sand adding tube 2 can be poured into the multiple sample tubes 5 below by rotating the discharge pipe 3. During the sand adding process, the amount of sand added in the sample tube 5 can be observed in real time through the scale line 22. The regulating mechanism 4 can not only adjust the size of the discharge amount before adding sand to the sample tube 5, but also close the discharge pipe 3 when the sand adding is completed. During the sand adding process, for the sample tube 5 with a larger capacity, the discharge flow rate of the discharge pipe 3 needs to be increased through the regulating mechanism 4 so that it can quickly pour the required amount of sand and gravel; for the sample tube 5 with a smaller capacity, the discharge amount of the discharge pipe 3 needs to be reduced through the regulating mechanism 4 to avoid the problem of excessive deviation of the sand and gravel ratio caused by the untimely closure of the discharge pipe 3. The sand adding equipment of the present application does not require the staff to move the sample tube 5 many times, and only needs to rotate the discharge pipe 3 to add sand to multiple sample tubes 5, which has the effect of improving work efficiency.

[0024] Specifically, the discharge pipe 3 includes a fixed pipe 31 and an extension pipe 32 . The fixed pipe 31 is hinged at the bottom of the sand adding cylinder 2 , and the extension pipe 32 is threadedly connected to one end of the fixed pipe 31 away from the hinged joint.

[0025] During the test, the heights of the sample tubes 5 of different capacities may also be different. Therefore, the overall length of the discharge tube 3 can be adjusted by rotating the extension tube 32, so that it can extend into the sample tubes 5 of various heights to prevent sand and gravel from rolling down from the discharge end of the discharge tube 3 to the outside.

[0026] Specifically, a first through hole 23 is provided at the center of the bottom of the sand adding cylinder 2, a mounting seat 6 is bolted to the bottom of the sand adding cylinder 2 at the first through hole 23, a mounting hole 61 is provided at the bottom of the mounting seat 6 and is communicated with the first through hole 23, and a ball joint 7 is rotatably provided in the mounting hole 61. The fixing tube 31 is hinged to the bottom of the sand adding cylinder 2 through the ball joint 7, a second through hole 71 is provided on the ball joint 7 along the axial direction of the fixing tube 31, and a stopper 8 for limiting the rotation of the ball joint 7 is installed on the mounting seat 6.

[0027] In the embodiment of the present application, the staff can manually rotate the discharge pipe 3 and rotate the ball joint 7 in the mounting seat 6, and the sand and gravel in the sand adding cylinder 2 can enter the discharge pipe 3 along the second through hole 71. When the discharge pipe 3 guides the sample cylinder 5 to be added with sand, the ball joint 7 can be restricted from continuing to rotate by the stopper 8, thereby improving the stability of the discharge pipe 3 during the sand adding process.

[0028] In order to prevent sand and gravel from entering the mounting hole 61 and jamming the ball joint 7, a dust cover 10 for connecting with the edge of the second through hole 71 is installed on the inner wall of the first through hole 23, and a channel for sand and gravel to pass through the second through hole 71 is provided inside the dust cover 10. The dust cover 10 can be made of a flexible material such as leather. This allows sand and gravel to enter the second through hole 71 through the channel in the dust cover 10, preventing the sand and gravel from contacting the inner wall of the mounting hole 61.

[0029] Specifically, the limiting member 8 includes a limiting bolt 81. A threaded hole communicating with the mounting hole 61 is horizontally opened on the side wall of the mounting seat 6. The limiting bolt 81 is threadedly connected in the threaded hole. When the staff rotates the discharge pipe 3 and directs it to the sample tube 5 to be added with sand, the angle of the discharge pipe 3 can be fixed by rotating and tightening the limiting bolt 81. After the addition of sand is completed, the limiting bolt 81 can be rotated and loosened, and the discharge pipe 3 can be rotated again to add sand to another sample tube 5.

[0030] Reference Figure 4 and Figure 5 The adjustment mechanism 4 includes a connecting tube 41 and a first baffle 42 coaxially welded in the connecting tube 41. A second baffle 43 is welded to the discharge end of the extension tube 32, and a notch 431 is provided on the second baffle 43. The connecting tube 41 is rotatably arranged at the discharge end of the extension tube 32, and the first baffle 42 is in sliding contact with the second baffle 43. A plurality of third through holes 421 are provided on the first baffle 42 for communicating with the notch 431 respectively.

[0031] In the embodiment of the present application, an unperforated area with a size larger than the notch 431 is left on the first baffle plate 42, and the sizes of the plurality of third through holes 421 are different. When the limiting bolt 81 fixes the angle of the discharge pipe 3, the notch 431 on the second baffle plate 43 can be connected to the corresponding third through hole 421 on the first baffle plate 42 by rotating the connecting cylinder 41, so as to adjust the discharge flow of the discharge pipe 3. When a sample tube 5 is filled with sand, the unperforated area on the first baffle plate 42 can be rotated to block the notch 431 on the second baffle plate 43 to stop the discharge.

[0032] Furthermore, the connecting tube 41 is coaxially rotatably sleeved on the outer wall of the extension tube 32, and a sealing ring 9 is embedded between the inner wall of the connecting tube 41 and the outer wall of the extension tube 32. The sealing ring 9 can be made of a flexible material such as rubber. The inner and outer sides of the sealing ring 9 are in frictional contact with the inner wall of the connecting tube 41 and the outer wall of the extension tube 32 respectively, and the staff can directly apply force to rotate the connecting tube 41. After the connecting tube 41 is loosened, the connecting tube 41 can still be fixed on the extension tube 32.

[0033] The implementation principle of a sand adding device for concrete testing in an embodiment of the present application is: rotate the discharge pipe 3 and guide it to the sample tube 5 to be added with sand, and then tighten the limit bolt 81 to fix the angle of the discharge pipe 3. By rotating the extension tube 32, the length of the discharge pipe 3 can be adjusted so that it can extend into the sample tube 5 to be added with sand. By rotating the connecting tube 41, the discharge flow rate can be adjusted so that it can adapt to sample tubes 5 of various capacities. During the sand adding process, the amount of sand added in the sample tube 5 can be observed in real time through the scale line 22. The sand adding device of the present application does not require the staff to move the sample tube 5 multiple times, which has the effect of improving work efficiency.

[0034] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sand adding device for concrete testing, characterized in that: The invention comprises a support (1), wherein a sand adding cylinder (2) for containing sand and gravel is provided on the top of the support (1), a discharge pipe (3) is hingedly connected to the bottom of the sand adding cylinder (2), an adjustment mechanism (4) for limiting the discharge flow rate is provided on the discharge pipe (3), a plurality of sample cylinders (5) for collecting sand and gravel in the sand adding cylinder (2) are externally connected below the sand adding cylinder (2), an observation window (21) is provided on one side of the sand adding cylinder (2), and a scale line (22) is vertically provided on the observation window (21).

2. The sand adding device for concrete testing according to claim 1, characterized in that: The discharge pipe (3) comprises a fixed pipe (31) and an extension pipe (32), wherein the fixed pipe (31) is hinged at the bottom of the sand adding cylinder (2), and the extension pipe (32) is threadedly connected to an end of the fixed pipe (31) away from the hinged joint.

3. The sand adding device for concrete testing according to claim 2, characterized in that: A first through hole (23) is provided at the center of the bottom of the sand adding cylinder (2); a mounting seat (6) is provided at the first through hole (23); a mounting hole (61) is provided through the bottom of the mounting seat (6) and is communicated with the first through hole (23); a ball joint (7) is rotatably provided in the mounting hole (61); the fixed tube (31) is hinged to the bottom of the sand adding cylinder (2) via the ball joint (7); a second through hole (71) is provided on the ball joint (7) along the axial direction of the fixed tube (31); and a limiter (8) for limiting the rotation of the ball joint (7) is provided on the mounting seat (6).

4. The sand adding device for concrete testing according to claim 3 is characterized in that: A dust cover (10) for connecting to the edge of the second through hole (71) is provided on the inner wall of the first through hole (23), and a channel for allowing sand and gravel to pass into the second through hole (71) is provided on the inner side of the dust cover (10).

5. The sand adding device for concrete testing according to claim 3, characterized in that: The limiting member (8) comprises a limiting bolt (81), a threaded hole communicating with the mounting hole (61) is horizontally opened on the side wall of the mounting seat (6), and the limiting bolt (81) is threadedly connected in the threaded hole.

6. The sand adding device for concrete testing according to claim 5, characterized in that: The adjusting mechanism (4) comprises a connecting tube (41) and a first baffle (42) coaxially fixedly arranged in the connecting tube (41); a second baffle (43) is fixedly arranged at the discharge end of the extension tube (32); a notch (431) is provided on the second baffle (43); the connecting tube (41) is rotatably arranged at the discharge end of the extension tube (32); the first baffle (42) is in sliding contact with the second baffle (43); and a plurality of third through holes (421) are provided on the first baffle (42) for respectively communicating with the notches (431).

7. The sand adding device for concrete testing according to claim 6, characterized in that: The connecting tube (41) is coaxially rotatably sleeved on the outer wall of the extension tube (32), and a sealing ring (9) is embedded between the inner wall of the connecting tube (41) and the outer wall of the extension tube (32).

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