Device for measuring depth of pile hole

Abstract

The utility model relates to the technical field of compaction pile construction, and discloses a device for measuring the depth of a pile hole, which comprises a frame body arranged on the ground outside the pile hole; the upper part of the vertical rod is hinged with the frame body through a hinged support; the balancing weight is arranged at the lower end of the vertical rod; the range finder is mounted on the lower side of the balancing weight and faces the bottom of the pile hole; the copper plate is connected to the upper end of the vertical rod; the magnet is mounted on the frame body and positioned on the upper side of the copper plate; a gap is formed between the magnet and the copper plate; the distance measuring instrument supported by the vertical rod is used for measuring the depth of a pile hole, the structure is simple, operation is convenient, a measuring rope does not need to be wound and unwound, the distance measuring instrument can be fast and stable through electromagnetic damping, meanwhile, it can be guaranteed that the measuring direction of the distance measuring instrument is vertically downward all the time, and the measuring accuracy and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the construction technology field of extruded pile, specifically relates to a device for measuring the depth of pile hole. BACKGROUND

[0002] The extruded pile is a common ground treatment method, and the main functions of the extruded pile include improving the bearing capacity of the ground, reducing the compressibility of the ground, eliminating the collapsibility of the ground, and improving the stability of the ground.

[0003] The traditional measurement method is to measure the distance by binding a plumb line under the measuring rope, and the construction personnel need to hold the measuring rope during measurement. On the one hand, the measuring rope cannot be kept stable during the measurement process, and the measuring rope will be slightly shaken for a long time during the measurement process, which leads to the fact that the distance display value is relatively jumping. On the other hand, the measuring direction of the measuring rope cannot be kept vertical downward after the plumb line touches the bottom, and the measurement may have errors. UTILITY MODEL CONTENT

[0004] The utility model discloses a device for measuring the depth of pile hole.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A device for measuring the depth of pile hole, comprising:

[0007] The frame body is placed on the ground outside the pile hole.

[0008] The vertical rod is hinged to the frame body through the hinge seat.

[0009] The counterweight is arranged at the lower end of the vertical rod.

[0010] The range finder is installed on the lower side of the counterweight and faces the bottom of the pile hole.

[0011] The copper plate is connected to the upper end of the vertical rod.

[0012] The magnet is installed on the frame body and located on the upper side of the copper plate. The magnet and the copper plate have a gap therebetween.

[0013] Further, the hinge seat comprises a square frame connected with the frame body, a rotating shaft is rotatably connected in the square frame, a rectangular frame is arranged in the middle of the vertical rod, and the rotating shaft passes through the middle of the rectangular frame. The secondary shaft is vertically connected to the rotating shaft, and the secondary shaft is rotatably connected with the rectangular frame.

[0014] Further, the upper part of the frame body is connected with the first conical cover, and a plurality of magnets are uniformly arranged on the lower side of the first conical cover. The upper end of the vertical rod is connected with the second conical cover, and a plurality of copper plates are uniformly arranged on the upper side of the second conical cover.

[0015] Further, the second conical cover is uniformly provided with a plurality of iron plates on the upper side, and the iron plates and copper plates are alternately arranged in the circumference.

[0016] Further, the hinge base is connected with a horizontal plate, and a vertical guide rod is arranged on the frame body and slidably connected with the horizontal plate.

[0017] Further, a door-shaped auxiliary frame is connected to the upper side of the middle part of the frame body, a height-adjustable lifting plate is arranged in the inner side of the auxiliary frame, a vertical shaft is connected to the upper side of the first conical cover, the vertical shaft penetrates through the lifting plate and is rotatably connected with the lifting plate, a rotating disc is connected to the upper end of the vertical shaft, a plurality of radial grooves are arranged on the upper side of the rotating disc, and a movable handle is arranged and cooperates with the radial grooves to limit the rotation of the rotating disc.

[0018] Further, a vertical rack is arranged in the auxiliary frame, the end of the lifting plate is vertically slid along the auxiliary frame, a sliding seat and a sliding body horizontally sliding through the sliding seat are arranged on the upper side of the lifting plate, the side of the sliding body facing the rack is provided with a tooth matched with the rack, the outer side of the end of the sliding body close to the tooth is provided with a protrusion, and a spring is connected between the sliding seat and the protrusion to move the sliding body to the rack.

[0019] Further, the sliding seat and the sliding body are arranged in two groups and symmetrically arranged on the two ends of the upper side of the lifting plate, and the two sides of the movable handle are connected with the sliding bodies on the two ends of the lifting plate through ropes.

[0020] Compared with the prior art, the utility model has the advantages of the following:

[0021] The utility model discloses a vertical rod support range finder measures the pile hole depth, simple structure, convenient operation, need not to take up and release measuring rope, can make range finder fast and stable through electromagnetic damping, can also guarantee that the measuring direction of range finder is always vertical and downward, improves the measuring accuracy and efficiency.

[0022] The utility model discloses a plurality of copper plates and magnets are uniformly distributed in the circumference to form stable electromagnetic damping, and the vertical rod and range finder are fast and stable and keep stable through the electromagnetic damping in multiple directions, effectively inhibit the slight swing of the vertical rod, and be favorable to the improvement of the measuring accuracy.

[0023] The range finder of the utility model is located at the upper end center of the pile hole during use, can cooperate with the iron plate through the rotation and lifting of the magnet, adsorb and lift the vertical rod and range finder, make the range finder height increase, and be convenient for the storage of the device. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structural schematic diagram of the utility model embodiment one.

[0025] Figure 2 It is the structure schematic view of the third embodiment of the utility model.

[0026] Figure 3 It is the structure schematic view of the third embodiment of the utility model.

[0027] Figure 4 It is the structure schematic view of the third embodiment of the utility model.

[0028] Figure 5 It is the structure schematic view of the third embodiment of the utility model.

[0029] Figure 6 It is the structure schematic view of the third embodiment of the utility model.

[0030] Figure 7 It is the structure schematic view of the third embodiment of the utility model.

[0031] Figure 8 It is the structure schematic view of the third embodiment of the utility model.

[0032] In the drawing: 1, frame body; 2, vertical rod; 3, hinge seat; 4, counterweight; 5, range finder; 6, copper plate; 7, magnet; 8, guide rod; 9, first conical cover; 10, second conical cover; 11, iron plate; 12, sub-frame; 13, lifting plate; 14, vertical shaft; 15, rotating disc; 16, radial slot; 17, movable handle; 18, sliding seat; 19, sliding body; 20, rope; 21, spring; 22, rack;

[0033] 201, rectangular frame; 31, square frame; 32, rotating shaft; 33, sub-shaft; 34, cross plate. DETAILED DESCRIPTION

[0034] In order to make the utility model purposes, technical solutions and advantages more clearly, the following will be further detailed with the utility model by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model, that is, the described examples are only a part of the embodiments of the utility model, and are not all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "provided with" can be understood in a broad sense, for example, the object of "provided with" can be part of the body, or can be arranged separately from the body and connected to the body, and the connection can be detachable or non-detachable.

[0036] The utility model provides a specific embodiment one of the device of pile hole measuring depth:

[0037] Please refer to Figure 1 And Figure 4 , the device of pile hole measuring depth, including frame body 1, vertical rod 2, counterweight 4, range finder 5, copper plate 6 and magnet 7.

[0038] Frame body 1 is placed on the ground outside the pile hole and is in the shape of a door; the two ends of frame body 1 are supported on the ground, and the middle part of frame body 1 is located above the hole opening of the rammed pile pile hole.

[0039] The upper part of vertical rod 2 is hinged to frame body 1 through hinge base 3; hinge base 3 includes a horizontal square frame 31 connected to frame body 1, a rotating shaft 32 rotatably connected to the inner middle part of square frame 31, a rectangular frame 201 provided in the middle part of vertical rod 2, and the rotating shaft 32 penetrates through the inner middle part of rectangular frame 201; the rotating shaft 32 is perpendicularly connected to a horizontal auxiliary shaft 33, and the two ends of auxiliary shaft 33 are rotatably connected to the two side walls of rectangular frame 201.

[0040] Hinge base 3 allows vertical rod 2 to swing in two horizontal directions respectively, so that vertical rod 2 can freely swing to a vertical state under the action of gravity.

[0041] Counterweight 4 is arranged at the lower end of vertical rod 2, and counterweight 4 applies a downward force to overcome the friction at hinge base 3, so that vertical rod 2 can assume a vertical state.

[0042] Range finder 5 is installed on the lower side of counterweight 4 and faces the bottom of the pile hole; range finder 5 can be an ultrasonic range finder 5 or a laser range finder 5; the height of the probe end of range finder 5 is the same as the height of the lower end of frame body 1, that is, the probe end of range finder 5 is at the same height as the ground.

[0043] Vertical rod 2 in a vertical state makes range finder 5 vertically downward to detect the depth of the pile hole, ensuring the accuracy of the depth measurement. Instead of using a traditional measuring rope, the operation of winding and unwinding the measuring rope for a long time is not necessary, which helps to improve the measurement efficiency.

[0044] After placing frame body 1, the process of simply relying on the gravity of counterweight 4 to make vertical rod 2 vertical, vertical rod 2 swings slightly for a long time, which makes the measurement efficiency relatively low;

[0045] In the embodiment, the electromagnetic damping structure is arranged, and the electromagnetic damping structure comprises a copper plate 6 and a magnet 7.

[0046] When the vertical rod 2 swings, the vertical rod 2 drives the copper plate 6 to move under the magnet 7; according to the Faraday's law of electromagnetic induction, when the relative angle between the copper plate 6 and the magnet 7 changes, the copper plate 6 cuts the magnetic induction lines, so that the magnetic flux passing through the copper plate 6 changes, and an induced electromotive force is generated in the copper plate 6; the copper plate 6 is a conductor, and an induced current is generated under the action of the induced electromotive force; according to the Lenz's law, the magnetic field generated by the induced current hinders the change of the magnetic flux that causes the induced current, that is, the relative movement between the copper plate 6 and the magnet 7 is hindered, and macroscopically, the copper plate 6 is damped. When the angle of the copper plate 6 relative to the magnet 7 changes, in addition to electromagnetic induction, eddy current is also generated in the copper plate 6. The eddy current also generates a magnetic field, which interacts with the external magnetic field and hinders the movement of the copper plate 6.

[0047] The electromagnetic damping effect can make the vertical rod 2 quickly stop swinging and stop in the vertical state, and is beneficial to the stability of the vertical rod 2 in the vertical state, and then the value measured by the distance meter 5 is the pile hole depth. This greatly improves the efficiency and accuracy of the distance measurement of the distance meter 5.

[0048] A second specific embodiment of the device for measuring the depth of a pile hole is provided in the utility model.

[0049] Please refer to Figure 7 and Figure 8 The difference between the embodiment and the first embodiment is that the first conical cover 9 is connected to the upper part of the frame body 1, a plurality of magnets 7 are uniformly arranged on the lower side of the first conical cover 9; the second conical cover 10 is connected to the upper end of the vertical rod 2, and a plurality of copper plates 6 are uniformly arranged on the upper side of the second conical cover 10.

[0050] A plurality of iron plates 11 are uniformly arranged on the upper side of the second conical cover 10, and the iron plates 11 and the copper plates 6 are alternately arranged in the circumferences; the first conical cover 9 is horizontally rotatably connected to the frame body 1.

[0051] In the embodiment, the number of the magnets 7, the copper plates 6 and the iron plates 11 is four.

[0052] Since the probe end at the lower end of the distance meter 5 is at the same height as the ground under the support of the frame body 1, the distance meter 5 is not disturbed by the ground when the distance meter 5 corresponds to the pile hole. When the whole device is placed on the flat ground, the distance meter 5 will be in contact with or even impacted by the ground, resulting in damage to the distance meter 5.

[0053] In this embodiment, the hinge 3 is connected to the horizontal plate 34, meaning that both sides of the square frame 31 are connected to the horizontal plate 34. Two vertical guide rods 8 are provided on the lower side of the middle part of the frame 1. The two guide rods 8 pass through the ends of the two horizontal plates 34 respectively and are slidably connected to the horizontal plates 34. A limiting block is provided at the lower end of the guide rod 8 to realize the lower limit of the horizontal plate 34, the hinge 3, and the vertical rod 2. When the hinge 3 and the vertical rod 2 are in the lower limit position, that is, when the horizontal plate 34 is at the lowest end of the guide rod 8, the lower probe of the rangefinder 5 is at the same height as the ground.

[0054] When not in use, rotate the first conical cover 9 so that the four magnets 7 are positioned above the four iron plates 11 on the upper side of the four second conical covers 10. The magnets 7 will attract the iron plates 11, causing them to rise to a certain height. The iron plates 11 will then cause the second conical covers 10, the vertical rod 2, the hinge 3, the counterweight 4, and the rangefinder 5 to rise slightly. The horizontal plate 34 will then rise slightly along the guide rod 8. At this time, the rangefinder 5 will rise slightly, with its lower end higher than the lower end of the frame 1. This prevents the rangefinder 5 from hitting the ground when the device is in place, reducing the risk of damage to the rangefinder 5.

[0055] During use, when placing the device on top of the pile hole for depth measurement, the four magnets 7 are positioned so that their gaps correspond to the upper sides of the four copper plates 6. Multiple sets of copper plates 6 and magnets 7, evenly distributed around the circumference, form a four-way stable electromagnetic damping. This four-way electromagnetic damping quickly stabilizes the vertical rod 2 and the rangefinder 5, maintaining stability during use and improving measurement accuracy. Furthermore, when the copper plates 6 swing, they are positioned a horizontal distance away from the vertical rod 2 compared to Embodiment 1. For the same slight swing, the position and angle of the copper plates 6 change more significantly, resulting in stronger electromagnetic damping. The multiple multi-directional electromagnetic damping effectively suppresses the slight swing of the vertical rod 2. Therefore, the distribution of copper plates 6 and magnets 7 in this embodiment provides better damping for the slight swing of the vertical rod 2. Before use, the vertical rod 2 can be manually stabilized to prevent violent swinging. This embodiment allows for a quick cessation of the slight swing of the vertical rod 2.

[0056] Specific embodiment three of the device for measuring the depth of pile holes provided by this utility model:

[0057] Please see Figures 2-8 In Embodiment 2, the vertical rod 2 and the rangefinder 5 can only rise to a limited height. On uneven ground, it cannot be guaranteed that the rangefinder 5 will not collide with the ground when placing the device. Furthermore, the vertical gap between the copper plate 6 and the magnet 7 cannot be adjusted during use, preventing the damping effect from being adjusted in intensity. Also, the magnetic connection between the magnet 7 and the iron plate 11 sometimes requires manual assistance.

[0058] Therefore, in the embodiment, the door-shaped auxiliary frame 12 is connected to the upper middle part of the frame body 1, and the frame body 1 is provided with a through hole through which the first conical cover 9 and the second conical cover 10 pass. The inside of the auxiliary frame 12 is provided with a height-adjustable lifting plate 13, the upper side of the first conical cover 9 is connected with a vertical shaft 14, the vertical shaft 14 passes through the lifting plate 13 and is rotationally connected with the lifting plate 13, the outside of the vertical shaft 14 at the lower side of the lifting plate 13 is provided with a limiting ring, so that the vertical shaft 14 can only rotate relative to the lifting plate 13 and cannot move vertically relative to the lifting plate 13. The upper end of the vertical shaft 14 is connected with a rotating disc 15, the upper side of the rotating disc 15 is provided with a plurality of radial grooves 16 arranged along the diameter direction of the rotating disc 15, and the number of the radial grooves 16 is four. In the embodiment, a movable handle 17 in the shape of a frame is arranged, the movable handle 17 cooperates with the radial grooves 16 to limit the rotation of the rotating disc 15, and when the movable handle 17 is away from the radial grooves 16, the rotating disc 15 can rotate.

[0059] The inside of the auxiliary frame 12 is symmetrically provided with two vertical grooves, the grooves are located in the vertical parts of the auxiliary frame 12, and a vertical rack 22 is arranged in each groove. The end of the lifting plate 13 slides vertically along the auxiliary frame 12, and the two ends of the lifting plate 13 are in the shape of a horizontal U. The two ends of the U-shaped lifting plate 13 are respectively attached to the two vertical parts of the auxiliary frame 12 to slide vertically.

[0060] The upper side of the lifting plate 13 is provided with a sliding seat 18 and a sliding body 19 which slides horizontally through the sliding seat 18. The side of the sliding body 19 facing the rack 22 is provided with a tooth which cooperates with the rack 22. The end of the sliding body 19 close to the tooth is provided with a protrusion. A plurality of springs 21 are connected between the sliding seat 18 and the protrusion, and the springs 21 move the sliding body 19 towards the rack 22.

[0061] The sliding seat 18 and the sliding body 19 are arranged in two groups, and the two groups are symmetrically arranged on the upper sides of the two ends of the lifting plate 13. The movable handle 17 is connected with the sliding body 19 at the two ends of the lifting plate 13 through a rope 20.

[0062] The rope 20 is made of non-elastic material. When the springs 21 move the sliding body 19 outward to the position where the teeth of the sliding body 19 are inserted into the teeth of the rack 22 to form vertical limiting, the sliding body 19 tightens the rope 20, the lower wall of the movable handle 17 is inserted into the radial groove 16, and the lifting plate 13 cannot move vertically. At this time, the movable handle 17 can limit the rotation of the rotating disc 15, the vertical shaft 14 and the first conical cover 9. When the movable handle 17 is manually moved upward to be separated from the radial groove 16, the rotating disc 15, the vertical shaft 14 and the first conical cover 9 can rotate freely. During the upward movement of the movable handle 17, the sliding body 19 is moved towards the center of the lifting plate 13 through the rope 20, and the springs 21 are compressed. The teeth of the sliding body 19 are separated from the rack 22, and the lifting plate 13 can also move vertically freely.

[0063] The lifting of the lifting plate 13 and the rotation of the first conical cover 9, combined with the position and action of the magnet 7: through the height adjustment of the lifting plate 13, the height of the first conical cover 9 and the magnet 7 can be adjusted, and then the vertical spacing between the magnet 7 and the copper plate 6 and the iron plate 11 is adjusted, which is specifically manifested as that the damping effect strength between the magnet 7 and the copper plate 6 can be changed respectively, the magnet 7 can be directly attached to the iron plate 11 to form a magnetic attraction connection. After the movable handle 17 is separated from the rotating disc 15, not only the height of the lifting plate 13 and the first conical cover 9 can be adjusted, but also the rotating disc 15 and the first conical cover 9 can be rotated, the rotation of the first conical cover 9 adjusts the position of the magnet 7, and the magnet 7 vertically corresponds to the copper plate 6 when measuring the depth, and the magnet 7 corresponds to the iron plate 11 when storing the device.

[0064] The lifting plate 13 can drive the first conical cover 9 to move upwards along the auxiliary frame 12 for a relatively long distance. When the magnet 7 is attracted to the iron plate 11, the lifting plate 13 drives the first conical cover 9, the second conical cover 10, the vertical rod 2, the counterweight 4 and the distance meter 5 to collectively rise for a long distance, and the magnetic attraction of the multiple magnets 7 and the iron plates 11 can stably attract the second conical cover 10, the vertical rod 2, the counterweight 4 and the distance meter 5. Compared with the second embodiment, the distance meter 5 in the embodiment rises to a higher height and is far away from the ground, so that the device can be safely placed on uneven ground, and the distance meter 5 is prevented from colliding with the ground.

[0065] Finally, it should be noted that the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments without creative labor, or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for measuring the depth of a pile hole, characterized in that, Include: Frame (1), placed on the ground outside the pile hole; Vertical rod (2), upper part is hinged with frame (1) through hinge base (3); Counterweight (4) is arranged at the lower end of vertical rod (2); Range finder (5) is installed on the lower side of counterweight (4) and faces the bottom of pile hole; Copper plate (6) is connected to the upper end of vertical rod (2); Magnet (7) is installed on frame (1) and located on the upper side of copper plate (6); there is a gap between magnet (7) and copper plate (6).

2. A device for measuring the depth of a pile hole according to claim 1, characterized in that The hinge base (3) includes a square frame (31) connected with the frame (1), a rotating shaft (32) is rotatably connected in the square frame (31), a rectangular frame (201) is arranged in the middle of the vertical rod (2), and the middle of the rotating shaft (32) penetrates the inside of the middle of the rectangular frame (201); the rotating shaft (32) is vertically connected with a secondary shaft (33), and the secondary shaft (33) is rotatably connected with the rectangular frame (201).

3. A device for measuring the depth of a pile hole according to claim 1, characterized in that, The upper part of the frame (1) is connected with a first conical cover (9), and a plurality of magnets (7) are uniformly arranged on the lower side of the first conical cover (9); the upper end of the vertical rod (2) is connected with a second conical cover (10), and a plurality of copper plates (6) are uniformly arranged on the upper side of the second conical cover (10).

4. A device for measuring the depth of a pile hole according to claim 3, characterized in that The upper side of the second conical cover (10) is uniformly provided with a plurality of iron plates (11), and the iron plates (11) and the copper plates (6) are circumferentially arranged alternately; the first conical cover (9) is horizontally rotatably connected with the frame (1).

5. A device for measuring the depth of a pile hole according to claim 4, characterised in that, The hinge base (3) is connected with a horizontal plate (34), a vertical guide rod (8) is arranged on the frame (1), and the guide rod (8) penetrates the horizontal plate (34) and is slidably connected with the horizontal plate (34).

6. A device for measuring the depth of a pile hole according to claim 5, characterized in that The middle upper side of the frame (1) is connected with a door-shaped auxiliary frame (12), the inner side of the auxiliary frame (12) is provided with a height-adjustable lifting plate (13), the upper side of the first conical cover (9) is connected with a vertical shaft (14), the vertical shaft (14) penetrates the lifting plate (13) and is rotatably connected with the lifting plate (13); the upper end of the vertical shaft (14) is connected with a rotating disc (15), the upper side of the rotating disc (15) is provided with a plurality of radial grooves (16); further comprising a movable handle (17), the movable handle (17) is matched with the radial grooves (16) to limit the rotation of the rotating disc (15).

7. A device for measuring the depth of a pile hole according to claim 6, characterized in that The auxiliary frame (12) is provided with a vertical rack (22), the end of the lifting plate (13) slides along the auxiliary frame (12) vertically, the upper side of the lifting plate (13) is provided with a sliding seat (18) and a sliding body (19) which slides horizontally through the sliding seat (18), the side of the sliding body (19) facing the rack (22) is provided with a tooth matched with the rack (22), the outer side of the end of the sliding body (19) close to the tooth is provided with a protrusion, and the sliding seat (18) and the protrusion are connected with a spring (21), and the spring (21) moves the sliding body (19) to the rack (22).

8. A device for measuring the depth of a pile hole according to claim 7, characterized in that The sliding seat (18) and the sliding body (19) are provided with two groups and are symmetrically arranged on the upper sides of the two ends of the lifting plate (13), and the movable handle (17) is connected with the sliding bodies (19) on the two ends of the lifting plate (13) through a rope (20).

Images