CN213631848U

CN213631848U - Measuring device for engineering cost

Info

Publication number: CN213631848U
Application number: CN202022912124.0U
Authority: CN
Inventors: 宋晓纯
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-07-06
Anticipated expiration: 2030-12-07

Abstract

The invention discloses a measuring device for construction cost, which comprises a machine body, wherein a handle and a control device are arranged at the top of the machine body, and a measuring grooved wheel is arranged at the bottom of the machine body; a winding sheave is also arranged on the machine body between the handle and the measuring sheave; the control device comprises a control circuit board, and a display module, a micro control module, a power module, a reset key and an on-off key which are arranged on the control circuit board; a counter is arranged on a bearing of the measuring grooved wheel and connected with the micro control module; a belt-shaped measuring scale is wound in the wheel groove of the winding sheave, the scale head of the roll paper is pulled out from the lower edge of the wheel groove of the winding sheave and then extends backwards around the wheel groove of the measuring sheave, and the scale head is provided with a fixing hole; the scale surface of the strip-shaped measuring scale is provided with scale marks; the measuring grooved wheel rotates for one circle and is pulled out by one meter corresponding to the belt-shaped measuring scale. The invention utilizes the rotation turns of the measuring grooved wheel to determine the integer number of the distance, and utilizes the scale on the belt-shaped measuring scale to determine the decimal distance, so that the measuring operation is more convenient and faster.

Description

Measuring device for engineering cost

Technical Field

The utility model belongs to the technical field of engineering cost, concretely relates to measuring device for engineering cost.

Background

The construction cost is the construction cost of the project. The blue key elements of the engineering cost are quantity, price and expense, the quantity is used as the first work of the engineering cost, and the measuring tape-shaped measuring scale is an indispensable tool. Most of the strip measuring scales for engineering cost are combined by measuring instruments and a flange frame, but some fields for measuring and surveying also need to support the ground on the spot, and wheel type hand-push surveying and surveying devices are generally adopted in the prior art.

Chinese patent application No. 202020299112.2 discloses a building engineering cost on-spot mapping device, and the mapping device who records in this patent can let mapping device have convenient to use, easy operation, characteristics that availability factor is high through setting up parts such as support frame, gyro wheel and banded measuring tape, but also does not have other problems. It is obvious that the measuring device measures the length depending on the reading of the strip-shaped measuring tape and the reading of the pointer, and if the numbers on the strip-shaped measuring tape are worn and the like, the reading is difficult, and the measuring is not accurate. On the other hand, when a large distance measurement is performed, a tape-shaped measuring tape corresponding to a measuring range needs to be arranged, and the tape-shaped measuring tape printed with numbers is relatively expensive, which increases the cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a measuring device for engineering cost utilizes the integer number digit of measuring sheave pivoted number of turns come definite distance, utilizes the scale on the banded measuring tape to confirm the mode of decimal place and measures the distance, need not to set up the figure on the banded measuring tape, consequently needn't worry banded measuring tape wearing and tearing and cause the inaccurate situation of measurement, makes the measurement operation convenient and fast more.

The utility model discloses a realize like this: a measuring device for construction cost comprises a machine body, wherein a handle and a control device are installed at the top of the machine body, and a measuring grooved wheel is installed at the bottom of the machine body; a winding sheave is further arranged on the machine body between the handle and the measuring sheave; the control device comprises a control circuit board, and a display module, a micro control module, a power module, a reset key and an on-off key which are arranged on the control circuit board; the micro control module is respectively connected with the display module, the power supply module, the reset key and the switch key; a counter is mounted on a bearing of the measuring grooved wheel and connected with the micro control module; a belt-shaped measuring scale is wound in the wheel groove of the winding sheave, the scale head of the belt-shaped measuring scale is pulled out from the lower edge of the wheel groove of the winding sheave and then extends backwards by bypassing the wheel groove of the measuring sheave, and the scale head is provided with a fixing hole; the scale surface of the strip-shaped measuring scale is provided with scale marks; and the measuring grooved wheel rotates for one circle and is pulled out for one meter corresponding to the belt-shaped measuring scale.

Further, the machine body is also provided with an anti-reverse mechanism for preventing the measurement grooved wheel from reversing.

Furthermore, the anti-reverse mechanism comprises a fixed shaft, a pawl, a spring and a pull rope; a plurality of saw teeth are arranged on the outer circular surface of the wheel groove of the measuring grooved wheel; the fixed shaft is fixedly installed on the machine body, one end of the pawl is rotatably installed on the fixed shaft, the other end of the pawl can abut against the tooth grooves of the saw teeth to prevent the measuring grooved wheel from being reversed, one end of the spring abuts against the machine body, the other end of the spring abuts against the pawl, one end of the pull rope is connected with the pawl, and the other end of the pull rope can be fastened on the machine body.

Further, a first notch is formed in the machine body, and the fixing shaft is fixedly installed in the first notch.

Further, a first wheel shaft is fixedly installed at the bottom of the machine body, and the measuring sheave is rotatably installed on the first wheel shaft through a bearing.

Further, a second notch is formed in the bottom of the machine body, and the first wheel shaft is fixedly installed in the second notch.

Further, a second wheel shaft is fixedly installed on the winding sheave, and the second wheel shaft is rotatably installed on the machine body through a bearing.

Furthermore, a crank is further installed at the end of the second wheel shaft of the winding sheave, and a crank is rotatably installed at the outer end of the crank.

Further, the counter is a Hall element capable of recording the number of turns.

Further, the side surface of the measuring sheave close to the wheel rim is provided with an arrow mark.

The utility model discloses the beneficial effect who brings is:

1. the invention utilizes the rotation turns of the measuring grooved wheel to determine the integer number of the distance, utilizes the scale on the belt-shaped measuring scale to determine the decimal number to measure the distance, and does not need to set numbers on the belt-shaped measuring scale, thereby avoiding the situation that the belt-shaped measuring scale is abraded to cause inaccurate measurement, and leading the measurement operation to be more convenient and faster.

2. The invention prevents the measuring grooved wheel from reversing when working normally by using the anti-reversing mechanism, thereby avoiding influencing the technical accuracy of the counter, improving the measuring accuracy, and the anti-reversing mechanism also has a resetting function, so that the measuring grooved wheel can be reversed to be adjusted properly.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a front view of the structure of the embodiment shown in FIG. 1;

FIG. 4 is a sectional view of the structure taken along line A-A in FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at II;

FIG. 6 is a graph showing the measurement results of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 6, a construction cost measuring device comprises a machine body 1, wherein the machine body 1 comprises two elongated plate members arranged at intervals. The top of the machine body 1 is provided with a handle 6 and a control device 13, and the bottom of the machine body is provided with a measuring sheave 3. A winding sheave 2 is also arranged on the machine body 1 between the handle 6 and the measuring sheave 3. The control device 13 comprises a control circuit board, and a display module 14, a micro control module, a power module, a reset key 15 and a switch key 16 which are arranged on the control circuit board. The micro control module is respectively connected with the display module 14, the power supply module, the reset key 15 and the switch key 16; and a counter is arranged on a bearing of the measuring grooved wheel 3 and is connected with the micro control module. A belt-shaped measuring scale 8 is wound in the wheel groove of the winding grooved wheel 2, the scale head of the belt-shaped measuring scale 8 is pulled out from the lower edge of the wheel groove of the winding grooved wheel 2 and then extends backwards around the wheel groove of the measuring grooved wheel 3, and the scale head is provided with a fixing hole 8.1. The scale surface of the strip-shaped measuring scale is provided with scale marks, each meter of the scale marks is provided with a long line 8.2, each 10cm of the scale marks is provided with a secondary long line 8.3, and each 1cm of the scale marks is provided with a short line 8.4. The measuring grooved wheel 3 rotates for one circle and is pulled out for one meter corresponding to the belt-shaped measuring ruler.

In order to prevent the measuring sheave 3 from backing and reversing during normal operation, in an alternative embodiment, the body 1 is further provided with an anti-reversing mechanism for preventing the measuring sheave 3 from reversing.

As a specific way of preventing the reverse rotation, in an alternative embodiment, the reverse rotation preventing mechanism includes a fixed shaft 11, a pawl 10, a spring 9 and a pull rope 17. The outer circular surface 3.2 of the sheave groove of the measuring sheave 3 is provided with a plurality of saw teeth 3.3. The machine body 1 is provided with a connecting plate 1.1 for connecting two slender plate members, and the connecting plate 1.1 is provided with a first tether hole 1.3. The fixed shaft 11 is fixedly installed on the machine body 1, one end of the pawl 10 is rotatably installed on the fixed shaft 11, the other end of the pawl 10 can abut against the tooth grooves of the saw teeth 3.3 to prevent the measuring grooved wheel 3 from reversing, one end of the spring 9 abuts against the connecting plate 1.1, the other end of the spring abuts against the pawl 10, a second rope tying hole 10.1 is formed in the position, close to the claw tip, of the pawl 10, one end of the pull rope 17 is connected with the second rope tying hole 10.1, and the other end of the pull rope can be tied to the first rope tying hole 1.3. When the measuring sheave 3 normally rotates, the claw tip of the pawl 10 continuously slips over the surface of the saw tooth 3.3, and when the claw tip is inserted into the tooth groove of the saw tooth 3.3, the measuring sheave 3 cannot rotate reversely. When the measuring grooved pulley 3 needs to rotate reversely, only the pull rope 17 needs to be pulled to drive the claw tip of the pawl 10 to be separated from the tooth groove of the saw tooth 3.3, then the end part of the pull rope 17 is tied in the first rope tying hole 1.3, and at the moment, the measuring grooved pulley can rotate freely. After releasing the pull cord 17, the pawl 10 again abuts against the tooth groove of the saw tooth 3.3 under the action of the spring 9.

As a specific way of installing the fixed shaft 11, in an alternative embodiment, a first notch 1.4 is provided on the body 1, and the fixed shaft 11 is fixedly installed in the first notch 1.4. The two ends of the fixing shaft 11 are threaded, and then nuts are screwed on to complete the fixing. The first notch 1.4 facilitates the removal of the fixed shaft 11.

As a specific installation manner of the measuring sheave 3, in an alternative embodiment, a first wheel shaft 7 is fixedly installed at the bottom of the machine body 1, and the measuring sheave 3 is rotatably installed on the first wheel shaft 7 through a bearing.

As a specific way of mounting the first wheel axle 7, in an alternative embodiment, the bottom of the body 1 is provided with a second notch 1.2, and the first wheel axle 7 is fixedly mounted in the second notch 1.2. The two ends of the first wheel shaft 7 are provided with threads, and then nuts are screwed on to complete the fixation. The second notch 1.2 facilitates the removal of the first hub 7

As a specific installation manner of the second axle 12, in an alternative embodiment, the second axle 12 is fixedly installed on the winding sheave 2, and the second axle 12 is rotatably installed on the machine body 1 through a bearing.

As a specific way of recycling the tape-shaped measuring tape, in an alternative embodiment, the end of the second wheel shaft 12 of the winding sheave 2 is further provided with a crank 4, and the outer end of the crank 4 is rotatably provided with a crank 5. The end of the crank 4 is provided with a hexagonal prism and the end of the second wheel axle 12 is provided with a hexagonal socket, which are inserted to form an anti-torque connection. The winding sheave 2 can be rotated by rotating the crank 5, and the band-shaped measuring tape 8 is retracted. In order to further improve the recovery speed, the crank 4 can be replaced by a motor, correspondingly, a recovery key for controlling the motor is arranged on the control circuit board, and the recovery key and the motor are both connected with the micro control module. And a recovery key is pressed, and the motor is started to drive the winding grooved wheel 2 to recover the belt-shaped measuring tape.

In an alternative embodiment, the counter is a Hall element capable of recording the number of turns, and the Hall element has higher measurement accuracy.

In an alternative embodiment the side of the measuring sheave 3 near the rim is provided with an arrow mark 3.1.

When the anti-reverse mechanism is used, the switch key 16 is pressed to start the control device 13, then the anti-reverse mechanism is adjusted to be in a non-working state, the measuring grooved wheel 3 can rotate freely, the belt-shaped measuring scale 8 is pulled out at the moment, the scale head of the measuring scale is aligned with the arrow mark 3.1 on the measuring grooved wheel 3, then the reset key 15 is pressed, and the anti-reverse mechanism is restored to be in a working state. At this time, the belt-shaped measuring scale 8 is continuously pulled out, the pin penetrates through the fixing hole 8.1 to fix the head of the belt-shaped measuring scale 8 on the ground, then a measurer holds the handle 6 and pushes the whole device forwards, the display module 14 displays corresponding numbers along with the rotation of the measuring sheave 3, the measuring sheave 3 stops after the target position is reached, as shown in fig. 6, the numbers displayed on the display module 14 correspond to the integer number of the distance (namely 125 m), and then the measurer determines the decimal number (namely 45 cm) again according to the scale on the belt-shaped measuring scale to obtain the final measuring result (namely 125.45 m).

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The measuring device for the construction cost is characterized by comprising a machine body (1), wherein a handle (6) and a control device (13) are installed at the top of the machine body (1), and a measuring grooved wheel (3) is installed at the bottom of the machine body; a winding sheave (2) is also arranged on the machine body (1) between the handle (6) and the measuring sheave (3); the control device (13) comprises a control circuit board, and a display module (14), a micro-control module, a power supply module, a reset key (15) and an on-off key (16) which are arranged on the control circuit board; the micro control module is respectively connected with the display module (14), the power supply module, the reset key (15) and the on-off key (16); a counter is arranged on a bearing of the measuring grooved wheel (3) and connected with the micro control module; a belt-shaped measuring scale (8) is wound in the wheel groove of the winding sheave (2), the scale head of the belt-shaped measuring scale (8) is pulled out from the lower edge of the wheel groove of the winding sheave (2) and then extends backwards around the wheel groove of the measuring sheave (3), and the scale head is provided with a fixing hole (8.1); the scale surface of the strip-shaped measuring scale is provided with scale marks; the measuring grooved wheel (3) rotates for one circle and is pulled out for one meter corresponding to the belt-shaped measuring scale.

2. The construction cost measuring device according to claim 1, wherein the machine body (1) is further provided with an anti-reverse mechanism for preventing the reverse of the measuring sheave (3).

3. The construction cost measuring device according to claim 2, wherein the anti-reverse mechanism includes a fixed shaft (11), a pawl (10), a spring (9) and a pull rope (17); a plurality of saw teeth (3.3) are arranged on the outer circular surface (3.2) of the sheave groove of the measuring sheave (3); fixed axle (11) fixed mounting be in on the fuselage (1), the one end of pawl (10) is rotated and is installed on fixed axle (11), and the other end can be supported prevent in the tooth's socket of sawtooth (3.3) measurement sheave (3) are invertd, the one end butt of spring (9) fuselage (1), other end butt pawl (10), the one end of stay cord (17) with pawl (10) are connected, and the other end can be tied on fuselage (1).

4. The construction cost measuring device according to claim 3, wherein the body (1) is provided with a first notch (1.4), and the fixed shaft (11) is fixedly installed in the first notch (1.4).

5. The construction cost measuring device according to claim 1, wherein a first wheel shaft (7) is fixedly installed at the bottom of the machine body (1), and the measuring sheave (3) is rotatably installed on the first wheel shaft (7) through a bearing.

6. Construction cost measuring device according to claim 5, characterised in that the bottom of the body (1) is provided with a second notch (1.2), in which second notch (1.2) the first wheel axle (7) is fixedly mounted.

7. The construction cost measuring device according to claim 6, wherein the winding sheave (2) is fixedly provided with a second wheel shaft (12), and the second wheel shaft (12) is rotatably provided on the machine body (1) through a bearing.

8. The construction cost measuring device according to claim 7, wherein a crank (4) is further installed at the end of the second wheel shaft (12) of the winding sheave (2), and a crank handle (5) is rotatably installed at the outer end of the crank (4).

9. A construction cost measuring device according to claim 1, wherein said counter is a hall element capable of recording the number of turns.

10. A construction cost measuring device according to claim 1, characterised in that the side of the measuring sheave (3) near the rim is provided with an arrow mark (3.1).