Rapid detection device for compactness of stable macadam base of airport

Abstract

The utility model discloses an airport stabilized macadam base compaction degree rapid detection device which comprises a base and a weight box, the bottom of the base is provided with a supporting part, and the top of the base is provided with a detection part. The supporting component comprises three first supporting legs which are arranged at the bottom of the base in a circumferential mode, adjusting grooves formed in one sides of the first supporting legs and adjusting plates connected with the adjusting grooves. Although the compaction degree can be calculated according to the depth of a pit formed by hitting the foundation through the free falling motion of a weight box (the macadam base layer is in a soft state before solidification), the two supporting legs are used for supporting the base plate, the base plate is very easy to topple over, and the detection problem is caused. And the weight box needs to be stoop to be picked up from the foundation every time, so that the weight box is tired, and the practicability is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of airport engineering, in particular to a device for quickly detecting the compaction degree of a stable crushed stone base layer at an airport. Background Art

[0002] Cement stabilized gravel base is a new type of road base material. It is mainly formed by mixing gravel and cement and then compacting it to form a durable, strong, water-resistant, heat-resistant, pressure-resistant and non-slip road base. Cement stabilized gravel base is the foundation of airport runways. The compaction test of cement stabilized gravel base is an indispensable test in airport runway inspection.

[0003] The existing patent CN219327064U discloses a cement stabilized gravel base compaction rapid detection device, including a pad, two legs are fixedly installed on the pad, a sleeve is fixedly installed on the pad, a screw rod is installed on the sleeve through a sliding mechanism, a cone rod is fixedly installed on the screw rod, an adjustment mechanism is installed between the screw rod and the sleeve, a round hole is opened on the pad, a vertical pole is fixedly installed on the pad, a sliding rod is slidably installed on the vertical pole, a lifting mechanism is installed between the sliding rod and the vertical pole, and a cross bar is fixedly installed on the sliding rod. The advantage is that the compaction of the base is detected by measuring the depth of the pit smashed by the counterweight box in the gravel base (the gravel base is in a soft state before solidification), which replaces the sand filling method, making the detection more convenient and fast, and greatly reducing the labor intensity.

[0004] Based on the search of the above patents and in combination with the detection devices in the prior art, it was found that when the above detection device is in use, although the counterweight box can make a free fall motion and hit the foundation, and the compaction degree can be calculated by the depth of the pit hit by the foundation (the gravel base is in a soft state before solidification), but it uses two legs to support the pad, the pad is easy to tip over, resulting in problems in the detection, and the counterweight box needs to bend down and pick up from the foundation every time, which is relatively tiring, resulting in poor practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a device for quickly detecting the compaction degree of a stable gravel base layer of an airport, so as to solve the problem that the existing detection device proposed in the above-mentioned background technology can, when in use, make a free fall motion through a counterweight box and hit the foundation, and calculate the compaction degree by the depth of the pit hit by the foundation (the gravel base layer is in a soft state before solidification), but it uses two legs to support a pad, which is easy to topple over, resulting in problems in detection, and the counterweight box needs to bend down and pick up from the foundation every time, which is relatively tiring, thus resulting in the problem of poor practicality.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a device for quickly detecting the compaction degree of a stable crushed stone base of an airport, comprising a base and a counterweight box, a supporting component is provided at the bottom of the base, and a detecting component is provided at the top of the base;

[0007] The supporting component includes three first legs arranged in a circle at the bottom of the base, an adjustment slot opened on one side of the first leg, an adjustment plate connected to the adjustment slot, a second leg connected to one side of the adjustment plate, a support plate connected to the second leg, a through hole opened on one side of the adjustment slot, an insertion rod connected to the through hole, a pull plate connected to one end of the insertion rod, a plurality of insertion holes evenly arranged on the adjustment plate, and a first spring sleeved on the outside of the insertion rod, the adjustment plate is slidably connected to the adjustment slot, the insertion rod is plugged into the insertion hole, the insertion rod is slidably connected to the through hole, the first leg is hinged to the base, and the second leg is hinged to the support plate.

[0008] Preferably, the detection component includes a support frame, support plates respectively connected to both sides of the top of the support frame, a rotating shaft connected to the support plates, a winding drum connected to the rotating shaft, a connecting rope connected to the winding drum, a connecting plate connected to one end of the rotating shaft, a rotating handle connected to the connecting plate, a locking component for locking the counterweight box, and a movable component for controlling the height of the counterweight box, the rotating shaft is rotatably connected to the support plates, and the connecting rope is fixedly connected to the counterweight box.

[0009] Preferably, a limiting groove is provided in the adjusting groove at a side away from the through hole, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the adjusting plate.

[0010] Preferably, the locking component includes a horizontal plate connected to one side of one of the support plates, a sliding opening opened on the horizontal plate, a sliding rod connected to the sliding opening, a movable plate connected to the top of the sliding rod, a circular plate connected to the bottom of the sliding rod, a locking rod connected to the bottom of the circular plate, a second spring connected to the top of the circular plate, a fixed plate connected to the outer side of the rotating shaft, and a plurality of locking holes arranged in a circle opened on the outer side of the fixed plate, the locking rod is plugged into the locking hole, and the sliding rod is slidably connected to the sliding opening.

[0011] Preferably, the moving component includes a vertical plate connected to one side of the top of the base, a lifting groove opened at the top of the vertical plate, a screw connected to the bottom of the lifting groove, a first bevel gear connected to the outside of the screw, a second bevel gear connected to the first bevel gear, a driving shaft connected to the second bevel gear, and a rotating plate connected to the driving shaft, the first bevel gear and the second bevel gear are meshed, the screw is threadedly connected to the support frame, the support frame is slidably connected to the lifting groove, the screw is rotatably connected to the bottom of the lifting groove, and the driving shaft is rotatably connected to the vertical plate.

[0012] Preferably, guide grooves are respectively opened on both sides of the lifting groove, and guide blocks are respectively fixedly connected to both sides of the support frame, and the guide blocks are slidably connected to the guide grooves.

[0013] Preferably, a round hole is provided on the top of the base, and a threading hole is provided on the top of the support frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By setting the base, the counterweight box and the supporting components, the three first legs can be rotated outward to form a triangular structure, which can stably support the base and prevent the base from tipping over during detection. Moreover, by pulling the pull plate, the plug rod can be disengaged from the plug hole, so that the second leg can drive the adjustment plate to move in the adjustment slot. The first spring can push the plug rod to insert into the plug hole, so that the second leg can be fixed, and then the length of the first leg and the second leg can be adjusted. The lengths of the three first legs and the second leg can be adjusted respectively according to the flatness of the foundation, so that the base can be kept level, the detection accuracy can be guaranteed, and the practicality of the device can be greatly improved;

[0016] 2. By setting up a detection component, the counterweight box performs free fall motion and hits the foundation. The compaction degree is calculated by the depth of the pit hit in the foundation (the gravel base is in a soft state before solidification). When the counterweight box moves downward, it can drive the connecting rope to move downward synchronously. After the detection is completed, the connecting plate can be driven to rotate by turning the handle, which can make the rotating shaft and the winding drum rotate, and then drive the connecting rope to be wound up, which can drive the counterweight box to move up and reset. There is no need to bend down to pick up the counterweight box, which can reduce labor intensity and further improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure provided by the utility model;

[0018] Figure 2 A left side view provided for the utility model;

[0019] Figure 3 The utility model provides Figure 2 The three-dimensional cross-section view at AA in the middle;

[0020] Figure 4 The utility model provides Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5 The utility model provides Figure 3 Enlarged view of point C in the middle.

[0022] In the figure: 1, base; 11, counterweight box; 21, first leg; 22, adjustment slot; 23, adjustment plate; 24, second leg; 25, support plate; 26, through hole; 27, plug rod; 28, pull plate; 29, plug hole; 30, first spring; 31, support frame; 32, support plate; 33, rotating shaft; 34, winding drum; 35, connecting rope; 36, connecting plate; 37, rotating handle; 41, limiting slot; 42, limiting block; 51, horizontal plate; 52, sliding opening; 53, sliding rod; 54, moving plate; 55, circular plate; 56, locking rod; 57, second spring; 58, fixed plate; 59, locking hole; 61, vertical plate; 62, lifting groove; 63, screw rod; 64, first bevel gear; 65, second bevel gear; 66, driving shaft; 67, rotating plate; 71, guide groove; 72, guide block; 81, circular hole; 82, threading hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4The utility model provides a technical solution: a device for quickly detecting the compaction degree of a stable crushed stone base at an airport, comprising a base 1 and a counterweight box 11, a supporting component is arranged at the bottom of the base 1, and a detecting component is arranged at the top of the base 1, the supporting component comprises three first legs 21 arranged in a circumferential manner at the bottom of the base 1, an adjusting slot 22 opened at one side of the first leg 21, an adjusting plate 23 connected to the adjusting slot 22, a second leg 24 connected to one side of the adjusting plate 23, a supporting plate 25 connected to the second leg 24, and a first leg 21 opened at the first leg 21. A through hole 26 on one side of the slot 22, a plug rod 27 connected to the through hole 26, a pull plate 28 connected to one end of the plug rod 27, a plurality of plug holes 29 evenly arranged on the adjustment plate 23, and a first spring 30 sleeved on the outside of the plug rod 27, the adjustment plate 23 is slidably connected to the adjustment slot 22, the plug rod 27 is plugged into the plug hole 29, the plug rod 27 is slidably connected to the through hole 26, the first leg 21 is hinged to the base 1, the second leg 24 is hinged to the support plate 25, and the two ends of the first spring 30 are respectively connected to the pull plate 28 and the first leg 21 The three first legs 21 are fixedly connected, and can be opened to form a triangular stable structure with the base 1, so as to stably support the base 1 and prevent the base 1 from tilting and falling during detection. Moreover, by pulling the pull plate 28, the insertion rod 27 can be separated from the insertion hole 29, so that the first spring 30 is deformed. At this time, the adjusting plate 23 can move in the adjusting groove 22, and the lengths of the three first legs 21 and the second leg 24 can be adjusted respectively according to the flatness of the foundation, so that the base 1 can maintain horizontal stability and ensure the detection accuracy. The first spring 30 can be reset to push the insertion rod 27 to be inserted into the insertion hole 29, and the adjusted first leg 21 and the second leg 24 can be fixed to prevent them from resetting. A limiting groove 41 is provided on the side of the adjusting groove 22 away from the through hole 26, and a limiting block 42 is slidably connected in the limiting groove 41. The limiting block 42 is fixedly connected to the adjusting plate 23, and when the adjusting plate 23 moves, the limiting block 42 can be driven to move. The limiting block 42 can limit the moving distance of the adjusting plate 23 to prevent the adjusting plate 23 from being separated from the adjusting groove 22.

[0025] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 5The detection components include a support frame 31, support plates 32 connected to both sides of the top of the support frame 31, a rotating shaft 33 connected to the support plate 32, a winding drum 34 connected to the rotating shaft 33, a connecting rope 35 connected to the winding drum 34, a connecting plate 36 connected to one end of the rotating shaft 33, a rotating handle 37 connected to the connecting plate 36, a locking component for locking the counterweight box 11, and a moving component for controlling the height of the counterweight box 11. The rotating shaft 33 is rotatably connected to the support plate 32, and the connecting rope 35 is fixedly connected to the counterweight box 11. The counterweight box 11 performs free fall motion and hits the foundation. The compaction degree is calculated by the depth of the pit hit by the foundation (the crushed stone base is in a soft state before solidification). Rotating the rotating handle 37 can drive the connecting plate 36 to rotate, and the height of the counterweight box 11 is controlled by the rotating handle 37. The rotating shaft 33 and the winding drum 34 can be rotated, and then the connecting rope 35 can be driven to be wound, and the counterweight box 11 can be lifted up. There is no need to pick up the counterweight box 11, which can reduce labor intensity and improve detection efficiency. The locking component includes a horizontal plate 51 connected to one side of one of the support plates 32, a sliding opening 52 opened on the horizontal plate 51, a sliding rod 53 connected to the sliding opening 52, a movable plate 54 connected to the top of the sliding rod 53, a circular plate 55 connected to the bottom of the sliding rod 53, a locking rod 56 connected to the bottom of the circular plate 55, a second spring 57 connected to the top of the circular plate 55, a fixed plate 58 connected to the outer side of the rotating shaft 33, and a plurality of locking holes 59 arranged in a circle on the outer side of the fixed plate 58. The locking rod 56 is plugged into the locking hole 59, and the sliding rod 5 3 is slidably connected to the sliding opening 52, and the two ends of the second spring 57 are fixedly connected to the circular plate 55 and the horizontal plate 51 respectively. The second spring 57 is sleeved on the outside of the sliding rod 53. Under the push of the second spring 57, the locking rod 56 can be stuck in the locking hole 59, so as to lock the fixed plate 58 and the rotating shaft 33, and then the winding drum 34 and the counterweight box 11 can be locked to prevent the counterweight box 11 from falling freely. The moving parts include a vertical plate 61 connected to one side of the top of the base 1, a lifting groove 62 opened on the top of the vertical plate 61, a screw 63 connected to the bottom of the lifting groove 62, a first bevel gear 64 connected to the outside of the screw 63, a second bevel gear 65 connected to the first bevel gear 64, a driving shaft 66 connected to the second bevel gear 65, and a driving shaft 66 connected to the driving shaft 66. 6, the first bevel gear 64 and the second bevel gear 65 are meshed, the screw 63 is threaded with the support frame 31, the support frame 31 is slidably connected with the lifting slot 62, the screw 63 is rotatably connected with the bottom of the lifting slot 62, the driving shaft 66 is rotatably connected with the vertical plate 61, and the driving shaft 66 and the second bevel gear 65 can be driven to rotate by rotating the rotating plate 67, so that the first bevel gear 64 can drive the screw 63 to rotate, and then the support frame 31 can move vertically in the lifting slot 62, which can change the height of the counterweight box 11, improve the scope of application, and facilitate multiple inspections. Guide grooves 71 are respectively opened on both sides of the lifting slot 62, and guide blocks 72 are fixedly connected on both sides of the support frame 31, and the guide blocks 72 are slidably connected with the guide grooves 71.When the support frame 31 moves vertically, it can drive the guide block 72 to slide in the guide groove 71, and then can support and guide the lifting of the support frame 31 to improve its lifting stability. A round hole 81 is opened on the top of the base 1, and a threading hole 82 is opened on the top of the support frame 31. The round hole 81 can facilitate the falling of the counterweight box 11, and the threading hole 82 can facilitate the passing of the connecting rope 35, so as to facilitate the control of the lifting and lowering of the counterweight box 11.

[0026] Working principle: During operation, pulling the pull plate 28 can drive the insertion rod 27 to move, and the movement of the insertion rod 27 can disengage from the insertion hole 29. At the same time, the first spring 30 is deformed by force, and then the second leg 24 can be pulled to drive the adjustment plate 23 to move in the adjustment slot 22. After adjusting to the specified position, the pull plate 28 can be released, and the first spring 30 can be reset to drive the insertion rod 27 to be inserted into the insertion hole 29, and the adjusted second leg 24 can be fixed. According to the flatness of the foundation, the positions of the three second legs 24 can be adjusted respectively, and then the three first legs 21 can be opened to horizontally support and fix the base 1. At this time, the counterweight box 11 is located above the base 1, and the moving plate 54 can be pulled. The moving plate 54 can drive the sliding rod 53 to move up, and the upward movement of the sliding rod 53 can drive the circular plate 55 and the locking rod 56 to move up. At the same time, the second spring 57 The locking rod 56 is disengaged from the locking hole 59, and the fixed plate 58 and the rotating shaft 33 are released. At this time, the counterweight box 11 performs free fall movement and can hit the foundation. The compaction degree is calculated by the depth of the pit hit by the foundation (the gravel base is in a soft state before solidification). Then the rotating handle 37 can be rotated, and the rotating handle 37 can drive the connecting plate 36 to rotate, and then the rotating shaft 33 can be driven to rotate, and then the winding drum 34 can be driven to rotate, so that the connecting rope 35 is wound up, and at the same time the counterweight box 11 is driven to move up and reset. Then the movable plate 54 can be loosened, so that the locking rod 56 is stuck in the locking hole 59, and the counterweight box 11 can be fixed to prevent it from falling. The above is the working process of the entire device, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for quickly detecting the compaction degree of a stable crushed stone base layer at an airport, comprising a base (1) and a counterweight box (11), characterized in that: The base (1) has a supporting component at the bottom and a detecting component at the top; The supporting component comprises three first legs (21) arranged in a circumferential pattern at the bottom of the base (1), an adjusting slot (22) provided at one side of the first leg (21), an adjusting plate (23) connected to the adjusting slot (22), a second leg (24) connected to one side of the adjusting plate (23), a supporting plate (25) connected to the second leg (24), a through hole (26) provided at one side of the adjusting slot (22), an inserting rod (27) connected to the through hole (26), and a support plate (25) connected to the inserting rod (25). 7) a pull plate (28) connected at one end thereof, a plurality of insertion holes (29) evenly arranged on the adjustment plate (23), and a first spring (30) sleeved on the outside of the insertion rod (27), the adjustment plate (23) is slidably connected to the adjustment groove (22), the insertion rod (27) is plugged into the insertion hole (29), the insertion rod (27) is slidably connected to the through hole (26), the first leg (21) is hinged to the base (1), and the second leg (24) is hinged to the support plate (25).

2. The device for rapid detection of compaction degree of stable crushed stone base of an airport according to claim 1, characterized in that: The detection component comprises a support frame (31), support plates (32) respectively connected to both sides of the top of the support frame (31), a rotating shaft (33) connected to the support plate (32), a winding drum (34) connected to the rotating shaft (33), a connecting rope (35) connected to the winding drum (34), a connecting plate (36) connected to one end of the rotating shaft (33), a rotating handle (37) connected to the connecting plate (36), a locking component for locking the counterweight box (11), and a moving component for controlling the height of the counterweight box (11); the rotating shaft (33) is rotatably connected to the support plate (32), and the connecting rope (35) is fixedly connected to the counterweight box (11).

3. The device for rapid detection of compaction degree of stable crushed stone base of an airport according to claim 1, characterized in that: A limiting groove (41) is provided in the adjustment groove (22) on a side away from the through hole (26), a limiting block (42) is slidably connected in the limiting groove (41), and the limiting block (42) is fixedly connected to the adjustment plate (23).

4. The device for rapid detection of compaction degree of stable crushed stone base of an airport according to claim 2, characterized in that: The locking component comprises a transverse plate (51) connected to one side of one of the support plates (32), a sliding opening (52) provided on the transverse plate (51), a sliding rod (53) connected to the sliding opening (52), a movable plate (54) connected to the top of the sliding rod (53), a circular plate (55) connected to the bottom of the sliding rod (53), a locking rod (56) connected to the bottom of the circular plate (55), a second spring (57) connected to the top of the circular plate (55), a fixed disk (58) connected to the outside of the rotating shaft (33), and a plurality of locking holes (59) provided on the outside of the fixed disk (58) and arranged in a circumference, wherein the locking rod (56) is plugged into the locking hole (59), and the sliding rod (53) is slidably connected to the sliding opening (52).

5. The device for rapid detection of compaction degree of stable crushed stone base of an airport according to claim 2, characterized in that: The moving component comprises a vertical plate (61) connected to one side of the top of the base (1), a lifting groove (62) opened at the top of the vertical plate (61), a screw rod (63) connected to the inner bottom of the lifting groove (62), a first bevel gear (64) connected to the outer side of the screw rod (63), a second bevel gear (65) connected to the first bevel gear (64), a driving shaft (66) connected to the second bevel gear (65), and a rotating plate (67) connected to the driving shaft (66), wherein the first bevel gear (64) and the second bevel gear (65) are meshed, the screw rod (63) is threadedly connected to the support frame (31), the support frame (31) is slidably connected to the lifting groove (62), the screw rod (63) is rotationally connected to the inner bottom of the lifting groove (62), and the driving shaft (66) is rotationally connected to the vertical plate (61).

6. The device for rapid detection of compaction degree of stable crushed stone base of an airport according to claim 5, characterized in that: Guide grooves (71) are respectively provided on both sides of the lifting groove (62), and guide blocks (72) are respectively fixedly connected to both sides of the support frame (31), and the guide blocks (72) are slidably connected to the guide grooves (71).

7. The device for rapid detection of compaction degree of stable crushed stone base of an airport according to claim 2, characterized in that: A circular hole (81) is provided on the top of the base (1), and a threading hole (82) is provided on the top of the support frame (31).

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