A relative density meter for water conservancy projects

Abstract

The present invention provides a relative density meter for water conservancy projects, comprising a lifter bracket, a sealing cylinder provided inside the lifter bracket, a lifting mechanism provided at the top end of the lifter bracket, and a vibrator connected to the actuator end of the lifting mechanism; the lifter bracket comprises a bracket chassis provided at the bottom end of the sealing cylinder, a first bracket rod installed at one end of the upper surface of the bracket chassis, a second bracket rod installed at the other end of the upper surface of the bracket chassis, and a bracket connecting strip having two ends respectively installed on the upper surfaces of the first bracket rod and the second bracket rod, one end of the first bracket rod being rotatably connected to a locking assembly. The present invention can utilize the vibration of the vibrator to improve the stability of the axis clamping plate during the vibration of the vibrator, thereby improving the stability during the measurement process.

Description

Technical Field

[0001] The invention mainly relates to the technical field of water conservancy projects, and in particular to a relative density meter for water conservancy projects. Background Art

[0002] Water conservancy project quality inspection can be referred to as quality inspection. It refers to the activities carried out by water conservancy project quality inspection units to inspect, measure, test or measure water conservancy project entities and raw materials, intermediate products, metal structures and electromechanical equipment used in water conservancy projects in accordance with relevant national laws, regulations and standards, and compare the results with relevant standards and requirements to determine whether the project quality is qualified.

[0003] The electric soil relative density meter is an electronic soil density measuring instrument, which is mainly composed of a body, a control panel, a transmission mechanism, a measuring cylinder, a vibrating hammer and other parts.

[0004] During use, current relative density meters often use an axial clamp to lock the vibrator in order to facilitate the movement of the density cylinder. However, as the number of vibrations increases, the axial clamp is prone to detachment, thereby affecting the vibration effect and the final measurement data. Summary of the Invention

[0005] The present invention mainly provides a relative density meter for water conservancy projects to solve the technical problems raised in the above background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A relative density meter for water conservancy projects comprises a lifter bracket, a sealing cylinder is provided inside the lifter bracket, a lifting mechanism is provided at the top end of the lifter bracket, and a vibrator is connected to the execution end of the lifting mechanism;

[0008] The vibrator includes a directional shaft connected to the execution end of the lifter bracket, a lifting frame connected to the bottom end of the directional shaft, and a vibration motor provided inside the lifting frame;

[0009] The lifter bracket includes a bracket chassis provided at the bottom end of the sealing cylinder, a first bracket rod installed at one end of the upper surface of the bracket chassis, a second bracket rod installed at the other end of the upper surface of the bracket chassis, and bracket connecting strips with two ends respectively installed on the upper surfaces of the first bracket rod and the second bracket rod, one end of the first bracket rod being rotatably connected to a locking assembly;

[0010] The locking assembly includes axis clamps which are arranged in sequence from top to bottom and are rotatably connected to the bracket rod, and a buffer locking component which is installed on the side surfaces of the two axis clamps which are away from each other.

[0011] Furthermore, the lifter bracket also includes a hexagonal locking sleeve mounted on the outer surface of the top end of the first bracket rod, and an N-shaped clamping sleeve passed through the top end of the second bracket rod and slidably connected to the outer surface of the second bracket rod. In the present invention, the N-shaped clamping sleeve is pushed down until the N-shaped clamping sleeve is mounted on the shell of the axis clamping plate, and the movement of the axis clamping plate is restricted by the N-shaped clamping sleeve.

[0012] Furthermore, the vibrator also includes two sliding sleeves slidably connected to the outer surface of the directional shaft, a positioning plate passed through the top of the sliding sleeve, and a plurality of first electromagnets embedded in the sliding sleeve housing. In the present invention, the sliding sleeve is pushed to lift and lower the U-shaped lifting block by sliding on the outer surface of the directional shaft, and the sliding sleeve is assisted by the first electromagnet to fix the sliding sleeve on the outer surface of the directional shaft.

[0013] Furthermore, the buffer locking component includes a U-shaped lifting block that is sleeved on the outside of the directional shaft and abuts against the outer surface of the sliding sleeve, a connecting rod rotatably connected to the two ends of the U-shaped lifting block through a rotating shaft, and a locking block connected to one end of the connecting rod away from the U-shaped lifting block through a rotating shaft, and a card slot is provided at the bottom end of the locking block.

[0014] Furthermore, the buffer locking component also includes a slide rail symmetrically arranged on the outer surface of the directional shaft, and the slide rail is slidably connected to the locking block. The slide rail guides the locking block to move along a straight line to improve the stability of the locking block when restricting the movement of the N-shaped ferrule and the hexagonal locking sleeve.

[0015] Furthermore, the lifter bracket also includes a groove provided on the upper surface of the bracket chassis and for the sealing tube to be inserted, and a second electromagnet is embedded in the groove body of the groove. In the present invention, the movement of the sealing tube is limited by the groove, and the sealing tube is adsorbed by the second electromagnet after being energized, thereby further reducing the movement of the sealing tube.

[0016] Furthermore, a connecting plate is installed on the surface of one side of the first bracket rod and the second bracket rod that are close to each other, a fixing pin is passed through the connecting plate shell, and a locking plate is engaged with the fixing pin, and the locking plate is installed on the outer surface of the sealing tube. In the present invention, the locking plate on the sealing tube is inserted into the fixing pin of the connecting plate, thereby limiting the movement of the locking plate after the fixing pin is fixed by the nut.

[0017] Furthermore, the outer surface of the directional shaft is provided with a plurality of external threads from top to bottom, and the directional shaft is engaged with the sliding sleeve through the external threads. In the present invention, the directional shaft guides the position of the sliding sleeve thereon through the external threads and completes the auxiliary fixation of the sliding sleeve.

[0018] Furthermore, the lifting mechanism includes a winch installed on one side surface of the connecting strip on the bracket, a steel wire rope connected to the winch, and a hook connected to the end of the steel wire rope away from the winch, the hook is buckled with a lifting ring, and the lifting ring is installed on the upper surface of the directional shaft.

[0019] Furthermore, the lifting mechanism also includes a lifting rod installed on the upper surface of the connecting strip on the bracket, and a pulley rotatably connected to both ends of the lifting rod through a rotating shaft and for the steel wire rope to slide.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] First, the present invention can flexibly measure the minimum dry density and maximum dry density of soil during the inspection process of water conservancy projects. Specifically, the vibrator is driven up and down by the lifting mechanism to control whether the vibrator needs to knock on the soil inside the sealing tube, so as to measure the minimum dry density and maximum dry density as needed.

[0022] Secondly, the present invention can utilize the vibration of the vibrator to improve the stability of the axis clamping plate during the vibration of the vibrator, thereby improving the stability during the measurement process. Specifically, when the U-shaped lifting block close to one end of the hook is pressed down by the sliding sleeve, the U-shaped lifting block pushes the locking block through the connecting rod rotatably connected thereto, so that the locking block is pressed on the N-shaped clamping sleeve or the hexagonal locking sleeve, reducing the displacement of the hexagonal locking sleeve and the N-shaped clamping sleeve, thereby improving the locking effect of the N-shaped clamping sleeve and the hexagonal locking sleeve on the axis clamping plate.

[0023] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is an axonometric drawing of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the locking assembly of the present invention;

[0027] Figure 4 is an exploded view of the locking assembly of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the vibrator of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the lifter bracket of the present invention;

[0030] Figure 7 for Figure 6A magnified view of the structure of area A;

[0031] Figure 8 It is a top view of the present invention.

[0032] In the figure: 10, lifter bracket; 11, bracket chassis; 12, first bracket rod; 121, connecting plate; 122, fixing pin; 123, positioning plate; 13, bracket upper connecting strip; 14, locking assembly; 141, axis clamping plate; 142, buffer locking component; 1421, U-shaped lifting block; 1422, connecting rod; 1423, locking block; 1424, slot; 1425, slide rail; 15, second bracket rod; 1 6. Hexagonal locking sleeve; 17. N-shaped ferrule; 18. Groove; 19. Second electromagnet; 20. Sealing cylinder; 30. Vibrator; 31. Orienting shaft; 32. Lifting frame; 33. Vibrating motor; 34. Sliding sleeve; 35. Positioning piece; 36. First electromagnet; 37. External thread; 40. Lifting mechanism; 41. Winch; 42. Wire rope; 43. Hook; 44. Lifting ring; 45. Lifting rod; 46. Pulley. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixed on" 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", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] For example, please refer to the attached Figure 1-8 A relative density meter for water conservancy projects includes a lifter bracket 10, a sealing cylinder 20 is provided inside the lifter bracket 10, a lifting mechanism 40 is provided at the top of the lifter bracket 10, and a vibrator 30 is connected to the execution end of the lifting mechanism 40;

[0037] The vibrator 30 includes a directional shaft 31 connected to the execution end of the lift bracket 10, a lifting frame 32 connected to the bottom end of the directional shaft 31, and a vibration motor 33 provided inside the lifting frame 32;

[0038] The lifter bracket 10 includes a bracket chassis 11 provided at the bottom end of the sealing cylinder 20, a first bracket rod 12 mounted on one end of the upper surface of the bracket chassis 11, a second bracket rod 15 mounted on the other end of the upper surface of the bracket chassis 11, and bracket connecting strips 13 mounted on the upper surfaces of the first bracket rod 12 and the second bracket rod 15 at both ends, one end of the first bracket rod 12 being rotatably connected to a locking assembly 14;

[0039] The locking assembly 14 includes two axis clamping plates 141 arranged sequentially from top to bottom and rotatably connected to the bracket rod 12 , and a buffer locking component 142 installed on the side surfaces of the two axis clamping plates 141 away from each other.

[0040] For details, please refer to the attached Figure 3 and 4 , the lifter bracket 10 further includes a hexagonal locking sleeve 16 sleeved on the outer surface of the top end of the first bracket rod 12, and an n-shaped clamping sleeve 17 passing through the top end of the second bracket rod 15 and slidingly connected to the outer surface of the second bracket rod 15;

[0041] The vibrator 30 further includes two sliding sleeves 34 slidably connected to the outer surface of the directional shaft 31 , a positioning piece 35 passing through the top of the sliding sleeve 34 , and a plurality of first electromagnets 36 embedded in the housing of the sliding sleeve 34 ;

[0042] The buffer locking component 142 includes a U-shaped lifting block 1421 sleeved on the outside of the directional shaft 31 and abutting against the outer surface of the sliding sleeve 34, a connecting rod 1422 rotatably connected to both ends of the U-shaped lifting block 1421 via a rotating shaft, and a locking block 1423 connected to the end of the connecting rod 1422 away from the U-shaped lifting block 1421 via a rotating shaft. The bottom end of the locking block 1423 is provided with a locking groove 1424;

[0043] The buffer locking component 142 further includes a slide rail 1425 symmetrically arranged on the outer surface of the directional shaft 31 , and the slide rail 1425 is slidably connected to the locking block 1423 ;

[0044] It should be noted that, in this embodiment, after the N-shaped clamping sleeve 17 is pushed down until the N-shaped clamping sleeve 17 is sleeved on the housing of the axis clamping plate 141, the movement of the axis clamping plate 141 is restricted by the N-shaped clamping sleeve 17;

[0045] Furthermore, the sliding sleeve 34 slides on the outer surface of the directional shaft 31 to push the U-shaped lifting block 1421 to move up and down, and the sliding sleeve 34 is assisted by the first electromagnet 36 to fix the sliding sleeve 34 on the outer surface of the directional shaft 31;

[0046] Furthermore, when the U-shaped lifting block 1421 near one end of the hook 43 is pressed down by the sliding sleeve 34, the U-shaped lifting block 1421 pushes the locking block 1423 through the connecting rod 1422 rotatably connected thereto, so that the locking block 1423 is pressed on the N-shaped ferrule 17 or the hexagonal locking sleeve 16, thereby reducing the displacement of the hexagonal locking sleeve 16 and the N-shaped ferrule 17, thereby improving the locking effect of the N-shaped ferrule 17 and the hexagonal locking sleeve 16 on the axis clamping plate 141;

[0047] Furthermore, the locking block 1423 is guided to move in a straight line by the slide rail 1425 to improve the stability of the locking block 1423 when restricting the movement of the N-shaped ferrule 17 and the hexagonal locking sleeve 16.

[0048] For details, please refer to the attached Figure 6 and 7 The lifter bracket 10 further includes a groove 18 provided on the upper surface of the bracket chassis 11 and for the sealing cylinder 20 to penetrate, and a second electromagnet 19 is embedded in the groove 18;

[0049] A connecting plate 121 is installed on the surface of the first support rod 12 and the second support rod 15 on the side close to each other, a fixing pin 122 is passed through the shell of the connecting plate 121, and a retaining plate 123 is engaged with the fixing pin 122, and the retaining plate 123 is installed on the outer surface of the sealing cylinder 20;

[0050] It should be noted that, in this embodiment, the movement of the sealing cylinder 20 is restricted by the groove 18, and the sealing cylinder 20 is attracted by the second electromagnet 19 after being energized, thereby further reducing the movement of the sealing cylinder 20;

[0051] Furthermore, the retaining plate 123 on the sealing cylinder 20 is inserted into the fixing pin 122 of the connecting plate 121 , thereby limiting the movement of the retaining plate 123 after the fixing pin 122 is fixed by the nut.

[0052] For details, please refer to the attached Figure 2 and 5 The outer surface of the directional shaft 31 is provided with a plurality of external threads 37 from top to bottom, and the directional shaft 31 is engaged with the sliding sleeve 34 through the external threads 37;

[0053] The lifting mechanism 40 includes a winch 41 mounted on one side of the connecting strip 13 on the bracket, a steel wire rope 42 connected to the winch 41, and a hook 43 connected to an end of the steel wire rope 42 away from the winch 41. The hook 43 is buckled with a lifting ring 44, and the lifting ring 44 is mounted on the upper surface of the directional shaft 31.

[0054] The lifting mechanism 40 further includes a lifting rod 45 mounted on the upper surface of the connecting strip 13 on the bracket, and a pulley 46 rotatably connected to both ends of the lifting rod 45 via a rotating shaft and for the steel wire rope 42 to slide.

[0055] It should be noted that, in this embodiment, the orientation shaft 31 guides the position of the sliding sleeve 34 thereon through the external thread 37 and completes the auxiliary fixation of the sliding sleeve 34;

[0056] Furthermore, the winch 41 rotates to retract and extend the steel wire rope 42, and the hook 43 is raised and lowered by retracting and extending the steel wire rope 42. The hook 43 guides the lifting of the lifting ring 44 on the directional shaft 31, thereby driving the directional shaft 31 to be raised and lowered.

[0057] Furthermore, the lifting rod 45 provides support for the pulley 46, and the pulley 46 is used to tension the wire rope 42 to improve the stability of the wire rope 42 when it is retracted or released.

[0058] The specific operation mode of the present invention is as follows:

[0059] When measuring the minimum dry density, place the sealing cylinder 20 on flat ground, and gently pour the soil into the cylinder with a shovel along the edge of the sealing cylinder 20, about 5 cm above the bottom surface. The shovel must not touch the soil, nor the cylinder wall, and must not generate vibration. Slowly fill the sealing cylinder 20 with soil, shovel by shovel, keeping the particle grading without separation, and slightly higher than the cylinder edge by 1 to 2 cm. Then use a hard ruler to gently scrape it flush with the sealing cylinder 20, without squeezing or vibrating. After scraping it flat, use a brush to sweep away the remaining soil outside the cylinder, and use a material transport vehicle to send the sealing cylinder 20 to the scale to weigh the dry soil mass.

[0060] When measuring the maximum dry density, shake the capstan 41 to raise the vibrator 30, place the sealing cylinder 20 in the center of the bracket chassis and fix it on the bracket. Divide the test soil into two parts using the quartering method, one of which is placed in the sealing cylinder 20 to a height of about 20 cm, put the vibrator 30 down, put the tamping plate on the soil sample surface, turn on the power switch, start the vibration motor 33 and vibrate for 8 minutes, turn off the power switch, rotate the axis clamp 141 horizontally, raise the vibrator 30 with the capstan 41, scratch the soil surface with a scraper, and then put the other half of the soil material to a height of about 20 cm, put the vibrator 30 tamping plate on the soil sample surface, and then clamp the upper fixed shaft of the vibrator 30 in the positioning position. In the plate hole, rotate the axis clamp 141, turn on the power switch, start the vibration motor 33 and vibrate for 8 minutes. Then turn off the vibration motor 33, rotate the axis clamp 141, remove the axis clamp 141 on the upper part of the vibrator 30, raise the vibrator 30, use a material transport vehicle to lift the sealing cylinder 20 and place it on a flat ground. Use a brush to sweep away the excess soil outside the cylinder and weigh the dry soil mass. Then use a level and a vertical ruler to measure the height from the cylinder mouth to the soil surface. Measure the average of the five points to calculate the soil sample height and the sample volume. Calculate the sample density and take the average of the two measurements.

[0061] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A relative density meter for water conservancy projects, comprising a lifter bracket (10), characterized in that: The lifter bracket (10) is provided with a sealing cylinder (20) inside, and a lifting mechanism (40) is provided at the top end of the lifter bracket (10), and the execution end of the lifting mechanism (40) is connected to a vibrator (30); the vibrator (30) includes a directional shaft (31) connected to the execution end of the lifter bracket (10), a lifting frame (32) connected to the bottom end of the directional shaft (31), and a vibration motor (33) provided inside the lifting frame (32); the lifter bracket (10) includes a bracket chassis (11) provided at the bottom end of the sealing cylinder (20), a first bracket rod (12) installed at one end of the upper surface of the bracket chassis (11), and a second bracket rod (15) installed at the other end of the upper surface of the bracket chassis (11). , and a bracket connecting strip (13) whose two ends are respectively mounted on the upper surfaces of the first bracket rod (12) and the second bracket rod (15), one end of the first bracket rod (12) is rotatably connected to a locking assembly (14); the locking assembly (14) includes an axis clamping plate (141) arranged in sequence from top to bottom and rotatably connected to the bracket rod (12), and a buffer locking component (142) mounted on the side surface of the two axis clamping plates (141) away from each other; the vibrator (30) also includes two sliding sleeves (34) slidably connected to the outer surface of the directional shaft rod (31), a positioning piece (35) passing through the top of the sliding sleeve (34), and a plurality of first electromagnets (36) embedded in the housing of the sliding sleeve (34); The buffer locking component (142) includes a U-shaped lifting block (1421) sleeved on the outside of the directional shaft (31) and abutting against the outer surface of the sliding sleeve (34), a connecting rod (1422) rotatably connected to both ends of the U-shaped lifting block (1421) via a rotating shaft, and a locking block (1423) connected to one end of the connecting rod (1422) away from the U-shaped lifting block (1421) via a rotating shaft, and a bottom end of the locking block (1423) is provided with a card slot (1424); The lifter bracket (10) further includes a hexagonal locking sleeve (16) sleeved on the outer surface of the top end of the first bracket rod (12), and an N-shaped clamping sleeve (17) passing through the top end of the second bracket rod (15) and slidably connected to the outer surface of the second bracket rod (15).

2. A relative density meter for water conservancy projects according to claim 1, characterized in that: The buffer locking component (142) further includes a slide rail (1425) provided on the outer surface of the directional shaft (31) and symmetrically arranged, and the slide rail (1425) is slidably connected to the locking block (1423).

3. A relative density meter for water conservancy projects according to claim 1, characterized in that: The lifter bracket (10) further comprises a groove (18) provided on the upper surface of the bracket chassis (11) and for the sealing cylinder (20) to penetrate, and a second electromagnet (19) is embedded in the groove body of the groove (18).

4. A relative density meter for water conservancy projects according to claim 1, characterized in that: A connecting plate (121) is installed on the surfaces of the first support rod (12) and the second support rod (15) on the side close to each other, a fixing pin (122) is passed through the shell of the connecting plate (121), and a locking plate (123) is locked with the fixing pin (122), and the locking plate (123) is installed on the outer surface of the sealing cylinder (20).

5. A relative density meter for water conservancy projects according to claim 1, characterized in that: The outer surface of the directional shaft (31) is provided with a plurality of external threads (37) in sequence from top to bottom, and the directional shaft (31) is engaged with the sliding sleeve (34) via the external threads (37).

6. A relative density meter for water conservancy projects according to claim 1, characterized in that: The lifting mechanism (40) includes a winch (41) mounted on one side of the connecting strip (13) on the bracket, a steel wire rope (42) connected to the winch (41), and a hook (43) connected to an end of the steel wire rope (42) away from the winch (41), wherein the hook (43) is buckled with a lifting ring (44), and the lifting ring (44) is mounted on the upper surface of the directional shaft (31).

7. A relative density meter for water conservancy projects according to claim 6, characterized in that: The lifting mechanism (40) further comprises a lifting rod (45) mounted on the upper surface of the connecting strip (13) on the bracket, and a pulley (46) rotatably connected to both ends of the lifting rod (45) via a rotating shaft and for sliding the steel wire rope (42).

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