Portable Larsen steel sheet pile measuring instrument

Abstract

The utility model belongs to the field of municipal engineering metering, and provides a portable Larsen steel sheet pile measuring instrument which comprises a shell, a laser distance measuring sensor, a mainboard and a power source are installed in the shell, and a numeric keyboard, a display screen and buttons are installed on the side wall of the shell. The end face of one side of the shell is provided with a window matched with the transmitting end of the laser distance measuring sensor, the transmitting end of the laser distance measuring sensor is embedded in the window, and the laser transmitting direction of the laser distance measuring sensor is perpendicular to the end face of the shell. According to the instrument, a calculation program is arranged in a main board, after basic data of the steel sheet pile are input, the length from the top of the steel sheet pile to the ground is measured through a laser distance measuring sensor, then the actual buried weight of the steel sheet pile is calculated through the calculation program, and a calculation result is stored in the measuring instrument. The problems that the measurement workload is large, and measurement data are prone to being lost can be well solved, and carrying and using are convenient.

Description

Technical Field

[0001] The utility model belongs to the field of municipal engineering measurement, and specifically relates to a portable Larsen steel sheet pile measuring instrument. Background Art

[0002] Larsen steel sheet piles are commonly used as support and water-stopping measures in municipal engineering. As a new type of building material, it is used as retaining walls, water retaining walls, and sand retaining walls when building bridge cofferdams, laying large pipelines, and excavating temporary ditches; it is used as retaining walls, retaining walls, and embankment protection at docks and unloading yards, and plays an important role in engineering. Larsen steel sheet piles are not only green and environmentally friendly, but also have fast construction speed and low construction cost, and have good waterproof function.

[0003] However, due to its high cost, it is a key link in engineering measurement, cost review and audit. During the project settlement, the actual weight of the steel sheet piles in the ground is required to be measured according to the actual depth of the steel sheet piles. Due to the large number of steel sheet piles, the on-site measurement work is cumbersome and the workload is huge. The existing measurement method is usually manual measurement and recorded in a data book, but the measurement errors of different personnel are large, and the recorded data is easy to be lost, which often leads to a deadlock in the settlement work. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a portable Larsen steel sheet pile measuring instrument, which can better solve the problems of large measurement workload and easy loss of measurement data.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a portable Larsen steel sheet pile measuring instrument, comprising a shell, in which a laser distance measuring sensor, a main board, and a power supply for power supply are installed, and a numeric keyboard, a display screen, and buttons are installed on the side wall of the shell;

[0006] A window adapted to the emitting end of the laser ranging sensor is provided on one end face of the shell, the emitting end of the laser ranging sensor is embedded in the window, the laser emitting direction of the laser ranging sensor is perpendicular to the end face of the shell, and the main board is electrically connected to the laser ranging sensor, the display screen, the numeric keypad, and the button respectively.

[0007] Preferably, the shell includes an upper cover and a lower cover, and the upper cover and the lower cover are fixed by bolts.

[0008] Preferably, the instrument further comprises a cover plate, which covers the housing to enclose the numeric keypad, the display screen and the buttons inside.

[0009] Preferably, a receiving groove is provided on the side wall of the cover plate facing the shell, and the numeric keypad, the display screen and the buttons are all embedded in the receiving groove.

[0010] Preferably, the cover plate is hinged to the shell.

[0011] Preferably, a first magnet is provided in the cover plate, and a second magnet matching the first magnet is provided in the shell.

[0012] Preferably, two ends of the cover plate are flush with two ends of the shell respectively.

[0013] Preferably, the cover plate is penetrated by at least two through holes, the two through holes are arranged at intervals, the through holes are perpendicular to the end surface of the cover plate, a clamping piece is provided in the through hole, a limiting sleeve is fixed on the inner wall of one end of the through hole close to the laser ranging sensor, the limiting sleeve is adapted to the clamping piece, the clamping piece is slidably sleeved in the limiting sleeve, an end cap is fixed to the end of the clamping piece away from the laser ranging sensor, the size of the end cap is larger than the size of the clamping piece, and the length of the clamping piece is larger than the length of the limiting sleeve.

[0014] Preferably, rubber caps are provided at the openings at both ends of the through hole, and the rubber caps are interference fit with the through hole.

[0015] Preferably, the rubber cap is connected to the cover plate via a hose.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a portable Larsen steel sheet pile measuring instrument. By setting a calculation program in the mainboard, after inputting the basic data of the steel sheet pile, a laser distance sensor is used to measure the length from the top of the steel sheet pile to the ground, and then the calculation program is used to calculate the actual buried weight of this section of the steel sheet pile. The calculation result is stored in the measuring instrument and can be exported to the surveyor's mobile phone or computer for easy archiving. It can better solve the problems of large measurement workload and easy loss of measurement data. In addition, the laser distance sensor, mainboard and other equipment are placed in the shell, which is easy to carry and use.

[0018] 2. The utility model provides a portable Larsen steel sheet pile measuring instrument, wherein the setting of the cover plate can effectively protect the numeric keyboard, display screen and buttons to avoid damage from external interference.

[0019] 3. The utility model provides a portable Larsen steel sheet pile measuring instrument, which can be clamped on the top of the pile plate by a clamping piece during measurement to play an auxiliary support role and improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a portable Larsen steel sheet pile measuring instrument provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a portable Larsen steel sheet pile measuring instrument provided in an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the three-dimensional structure inside the housing of a portable Larsen steel sheet pile measuring instrument provided in an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the structure of a portable Larsen steel sheet pile measuring instrument provided by an embodiment of the utility model after the cover plate is closed, viewed from above;

[0024] Figure 5 A schematic diagram of the structure of a portable Larsen steel sheet pile measuring instrument provided by an embodiment of the utility model after the cover plate is opened, viewed from above;

[0025] Figure 6 A schematic diagram of the front view structure of a portable Larsen steel sheet pile measuring instrument provided by an embodiment of the utility model after the cover plate is opened;

[0026] Figure 7 A schematic cross-sectional structural diagram of a clamping member and related parts of a portable Larsen steel sheet pile measuring instrument provided in an embodiment of the utility model;

[0027] Figure 8 A schematic diagram of the front view structure of a portable Larsen steel sheet pile measuring instrument provided by an embodiment of the utility model, in which a clamping part is clamped on a pile plate;

[0028] Fig. 9 A schematic diagram of the top view of the structure of a portable Larsen steel sheet pile measuring instrument provided in an embodiment of the utility model, in which a clamping part is clamped on a pile plate.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Shell; 2. Laser ranging sensor; 3. Main board; 4. Power supply; 5. Numeric keypad; 6. Display screen; 7. Button; 8. Cover plate; 9. Receiving slot; 10. Steel sheet pile; 101. Upper cover; 102. Lower cover; 801. Through hole; 802. Clamping piece; 803. Limiting sleeve; 804. End cover; 805. Rubber cap; 806. Hose. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0032] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0033] Example 1

[0034] like Figure 1-3 As shown, this embodiment provides a portable Larsen steel sheet pile measuring instrument, including a housing 1, in which a laser distance measuring sensor 2, a main board 3, and a power supply 4 for power supply are installed, and a numeric keyboard 5, a display screen 6, and a button 7 are installed on the side wall of the housing 1;

[0035] A window adapted to the emitting end of the laser ranging sensor 2 is provided on one end face of the shell 1, and the emitting end of the laser ranging sensor 2 is embedded in the window. The laser emitting direction of the laser ranging sensor 2 is perpendicular to the end face of the shell 1, and the main board 3 is electrically connected to the laser ranging sensor 2, the display screen 6, the numeric keypad 5, and the button 7 respectively.

[0036] In this embodiment, the laser distance measuring sensor 2 may be a TOF laser distance measuring sensor. When in use, the housing 1 is placed on the top of the pile so that the laser emission direction faces downward and the bottom of the housing 1 is flush with the top of the pile. This is because the emission end of the laser distance measuring sensor 2 is embedded in the window, so that the emission end of the laser distance measuring sensor 2 is also flush with the top of the pile. Then, the laser distance measuring sensor 2 emits laser to the ground to measure the height of the top of the pile from the ground.

[0037] The mainboard 3 may include an ESP8266 IoT development board and a MicroSD card module, the MicroSD card module is electrically connected to the ESP8266 IoT development board, and the MicroSD card module can be used to store data. A memory card slot may also be provided on the side wall of the housing 1 for installing or removing the MicroSD card.

[0038] The display screen 6 may be a 1.3-inch TFTIPS display, and the display screen 6 may be used to display measurement data.

[0039] The power source 4 may include a lithium battery and a Type-C charging module. The lithium battery can supply power to various components, and the Type-C charging module can be used to charge the lithium battery.

[0040] The numeric keyboard 5 can be used to input numbers when numbering steel sheet piles.

[0041] The button 7 can be used to determine the model, modify the steel sheet pile number, start laser measurement, and input a signal when calculating the weight of the steel sheet pile.

[0042] A USB Micro-B data port electrically connected to the mainboard 3 may be provided on the side wall of the housing 1 , and the USB Micro-B data port may be connected to a data cable.

[0043] A power switch may be provided on the side wall of the housing 1 for turning the instrument on or off.

[0044] Based on the above structure, the method for using the measuring instrument provided in this embodiment may include the following steps:

[0045] 1) Through the built-in calculation program of the main board 3, the Larsen steel sheet pile model (Type II, Type III, Type IV, etc.) and single length (6m, 9m, 12m, 15m, etc.) are set before measurement;

[0046] 2) Using the laser ranging sensor 2 to measure the length from the top of the steel sheet pile to the ground, the actual depth of the steel sheet pile buried in the ground is the length of a single steel sheet pile minus the length from the top of the steel sheet pile to the ground;

[0047] 3) Use the calculation program to calculate the actual weight of the steel sheet piles in this section;

[0048] 4) The data is stored in the MicroSD card module through a storage device and can be later transmitted to the measurement personnel's mobile phone or computer through a data cable or the like, which is convenient for archiving and can also prevent tampering by personnel.

[0049] In summary, the portable Larsen steel sheet pile measuring instrument provided in this embodiment can better solve the problems of large measurement workload and easy loss of measurement data. Moreover, the laser distance measuring sensor, mainboard and other devices are placed in the housing, which is easy to carry and use.

[0050] In this embodiment, the housing 1 includes an upper cover 101 and a lower cover 102 , and the upper cover 101 and the lower cover 102 are fixed by bolts.

[0051] Specifically, each of the four corners of the upper cover 101 is provided with an upper screw hole, and each of the four corners of the lower cover 102 is provided with a lower screw hole, and the upper screw holes correspond to the lower screw holes one by one, and the upper screw holes are fixed to the corresponding lower screw holes by bolts. The bolt fixing method is adopted, and the structure is stable and it is very convenient to install or disassemble.

[0052] Example 2

[0053] In order to avoid the display screen 6 being scratched, etc., based on Example 1, the portable Larsen steel sheet pile measuring instrument provided in this embodiment is as follows: Figure 4-5 As shown, a cover plate 8 is also included, and the cover plate 8 is covered with the housing 1 to cover the numeric keypad 5, the display screen 6, and the button 7 inside.

[0054] The cover plate 8 can protect the numeric keypad 5 , the display screen 6 , and the buttons 7 .

[0055] like Figure 6 As shown, a receiving groove 9 is provided on the side wall of the cover plate 8 facing the shell 1. After the cover plate 8 is covered with the shell 1, the numeric keypad 5, the display screen 6 and the button 7 are all embedded in the receiving groove 9 to avoid squeezing.

[0056] The cover plate 8 is hinged to the housing 1. The cover plate 8 can be quickly flipped open, making the operation more convenient.

[0057] A first magnet is disposed in the cover plate 8, and a second magnet matched with the first magnet is disposed in the housing 1. After the cover plate 8 is covered with the housing 1, the first magnet and the second magnet are fixed by magnetic attraction.

[0058] In this embodiment, Figure 6 As shown, the upper and lower ends of the cover plate 8 are flush with the upper and lower ends of the housing 1. The length and width of the cover plate 8 are the same as those of the housing 1, that is, the cover plate 8 can completely overlap with the housing 1.

[0059] During measurement, in order to improve the measurement accuracy, the emitting end of the laser distance measuring sensor 2 needs to be flush with the top of the pile, and the laser emission direction needs to be kept vertically downward. However, since the measuring instrument is small, it is easy to shake and deviate when held in hand, resulting in low measurement accuracy. In order to improve its measurement accuracy. Figure 7 As shown, the cover plate 8 is penetrated by two through holes 801 from top to bottom, the two through holes 801 are arranged at intervals, the through holes 801 are perpendicular to the end surface of the cover plate 8, a clamping member 802 is arranged in the through hole 801, a limiting sleeve 803 is fixed on the inner wall of one end of the through hole 801 close to the laser ranging sensor 2, the limiting sleeve 803 is adapted to the clamping member 802, the clamping member 802 is slidably sleeved in the limiting sleeve 803, an end cap 804 is fixed to the end of the clamping member 802 away from the laser ranging sensor 2, the size of the end cap 804 is larger than the size of the clamping member 802, that is, the end cap 804 cannot enter the limiting sleeve 803, and the length of the clamping member 802 is greater than the length of the limiting sleeve 803.

[0060] When the laser distance measuring sensor 2 is facing downward, Figure 8-9As shown, the clamping member 802 slides downward in the through hole 801 until the end cover 804 abuts against the upper end of the limiting sleeve 803, and the lower end of the clamping member 802 slides out of the lower end opening of the through hole 801. At this time, the two clamping members 802 and the cover plate 8 together constitute an F-shaped clamping structure, and the spacing distance between the two clamping members 802 is adapted to the thickness of the steel sheet pile 10, that is, the two clamping members 802 can clamp the steel sheet pile 10 in the middle to form a stable structure. If necessary, the F-shaped clamping structure can also be manually supported to keep the F-shaped clamping structure stable.

[0061] Since the steel sheet pile 10 is usually arranged vertically, after being clamped, the clamping member 802 is also arranged vertically, and when the two clamping members 802 are clamped on both sides of the steel sheet pile 10, the lower end of the cover plate 8 is just placed on the top of the steel sheet pile 10, and the lower end of the cover plate 8 is flush with the emitting end of the laser distance sensor 2, that is, the emitting end of the laser distance sensor 2 is flush with the top of the steel sheet pile 10, so there is no need to manually adjust the height of the shell 1, the measurement result is very accurate, and the laser distance sensor 2 can be kept vertically downward without manual adjustment of the angle. Therefore, the F-type clamping structure can play a great auxiliary role in the measurement of the staff, effectively improving the measurement accuracy and efficiency.

[0062] Wherein, rubber caps 805 are clamped at both ends of the through hole 801, and the rubber caps 805 are interference fit with the through hole 801. When not in use, the rubber caps 805 can prevent the clamping member 802 from slipping out of the through hole 801. Moreover, the rubber caps 805 can be removed or covered by pulling and pressing, which is simple and convenient to operate.

[0063] The rubber cap 805 is connected to the cover plate 8 via a hose 806. The hose 806 can prevent the rubber cap 805 from being lost.

[0064] It can be understood that different types of steel sheet piles have different thicknesses. In order to be suitable for the measurement of different types of steel sheet piles, in this embodiment, the cover plate 8 is provided with a plurality of through holes 801 running through the upper and lower parts. The plurality of through holes 801 are evenly spaced. For steel sheet piles of different thicknesses, two clamping members with different spacing distances can be used for clamping and fixing, thereby meeting the measurement requirements of different types of steel sheet piles.

[0065] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0066] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0067] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A portable Larsen steel sheet pile measuring instrument, characterized in that: The invention comprises a housing (1), wherein a laser distance measuring sensor (2), a mainboard (3), and a power supply (4) for power supply are installed in the housing (1), and a numeric keyboard (5), a display screen (6), and buttons (7) are installed on the side wall of the housing (1); A window adapted to the emitting end of the laser distance measuring sensor (2) is provided on one end face of the housing (1); the emitting end of the laser distance measuring sensor (2) is embedded in the window; the laser emitting direction of the laser distance measuring sensor (2) is perpendicular to the end face of the housing (1); and the main board (3) is electrically connected to the laser distance measuring sensor (2), the display screen (6), the numeric keypad (5), and the button (7) respectively.

2. A portable Larsen steel sheet pile measuring instrument according to claim 1, characterized in that: The housing (1) comprises an upper cover (101) and a lower cover (102), and the upper cover (101) and the lower cover (102) are fixed by bolts.

3. A portable Larsen steel sheet pile measuring instrument according to claim 1, characterized in that: The instrument further comprises a cover plate (8), wherein the cover plate (8) covers the housing (1) so as to enclose the numeric keyboard (5), the display screen (6), and the button (7) inside.

4. A portable Larsen steel sheet pile measuring instrument according to claim 3, characterized in that: A receiving groove (9) is provided on the side wall of the cover plate (8) facing the housing (1), and the numeric keypad (5), the display screen (6) and the button (7) are all embedded in the receiving groove (9).

5. The portable Larsen steel sheet pile measuring instrument according to claim 3, characterized in that: The cover plate (8) is hinged to the shell (1).

6. A portable Larsen steel sheet pile measuring instrument according to claim 3, characterized in that: A first magnet is arranged in the cover plate (8), and a second magnet matching the first magnet is arranged in the housing (1).

7. A portable Larsen steel sheet pile measuring instrument according to claim 3, characterized in that: Two ends of the cover plate (8) are respectively flush with two ends of the shell (1).

8. A portable Larsen steel sheet pile measuring instrument according to claim 7, characterized in that: The cover plate (8) is provided with at least two through holes (801) extending therethrough, the two through holes (801) being arranged at intervals, the through holes (801) being perpendicular to the end surface of the cover plate (8), a clamping member (802) being provided in the through hole (801), a limiting sleeve (803) being fixed on the inner wall of one end of the through hole (801) close to the laser ranging sensor (2), the limiting sleeve (803) being adapted to the clamping member (802), the clamping member (802) being slidably sleeved in the limiting sleeve (803), an end cap (804) being fixed on one end of the clamping member (802) away from the laser ranging sensor (2), the size of the end cap (804) being larger than the size of the clamping member (802), and the length of the clamping member (802) being larger than the length of the limiting sleeve (803).

9. A portable Larsen steel sheet pile measuring instrument according to claim 8, characterized in that: Rubber caps (805) are provided at both ends of the through hole (801), and the rubber caps (805) are interference fit with the through hole (801).

10. A portable Larsen steel sheet pile measuring instrument according to claim 9, characterized in that: The rubber cap (805) is connected to the cover plate (8) via a hose (806).

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