CN209945298U - Wheel ruler with range adjusting function - Google Patents
Wheel ruler with range adjusting function Download PDFInfo
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- CN209945298U CN209945298U CN201920488919.8U CN201920488919U CN209945298U CN 209945298 U CN209945298 U CN 209945298U CN 201920488919 U CN201920488919 U CN 201920488919U CN 209945298 U CN209945298 U CN 209945298U
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- wheel
- circle
- drive
- counting
- range
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Abstract
The utility model relates to a wheel chi with range regulatory function, including the handle, with the bracing piece that the handle is connected, with fixed and inside counting box, the measuring wheel, the connection that are equipped with counting assembly of bracing piece the counting box with measuring wheel and inside transmission case that is provided with regulator, this wheel chi with range regulatory function, through control mechanism's regulation, can be according to measuring distance's difference and switch the size of range, the operation is swift, improves measurement accuracy.
Description
Technical Field
The utility model relates to an engineering survey technical field, in particular to wheel chi with range regulatory function.
Background
And comparing the measured length with the known length to obtain a measuring result, which is called a measuring tool for short. The length measuring tool comprises a gauge, a measuring tool and a measuring instrument, and the measuring tool can be further divided into mechanical, optical, pneumatic, electric, photoelectric and other types according to the working principle. The measuring tool in the prior art, especially the wheel ruler, its single structure, and current wheel ruler generally can't adjust the range, can't satisfy the longer condition of measured distance, need reset measured data many times when leading to measuring, not only the operation is inconvenient, and measurement accuracy is lower moreover.
Therefore, it is necessary to provide a new wheel ruler with range adjustment function to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wheel chi with range regulatory function can switch the size of range according to the difference of measuring distance, and the operation is swift, improves measurement accuracy.
The utility model provides a technical scheme that its technical problem adopted is: a wheel ruler with a range adjusting function comprises a handle, a support rod connected with the handle, a counting box fixed with the support rod and internally provided with a counting device, a measuring wheel and a transmission box connected with the counting box and the measuring wheel and internally provided with an adjusting device;
adjusting device is in including setting up regulation circle on the transmission case, setting be in the transmission case and with the fixed regulating wheel of measuring wheel, with the drive wheel that counting assembly connects, connect the drive belt of drive wheel and regulating wheel, the control mechanism who adjusts the drive belt position, the regulation circle includes that interconnect's first rotation circle, second rotate circle and third rotate the circle, the regulating wheel includes first drive wheel, second drive wheel and third drive wheel, control mechanism includes the turning block, passes the connecting rod of regulation circle, the regulating wheel and a plurality of screens subassembly that contact with the drive belt.
Specifically, a buffer device is arranged on the supporting rod.
Specifically, an auxiliary wheel is arranged below the counting box.
Specifically, the diameter of the third rotating ring is smaller than that of the second rotating ring, and the diameter of the second rotating ring is smaller than that of the first rotating ring.
Specifically, the diameter of the first driving wheel is larger than that of the second driving wheel, and the diameter of the second driving wheel is larger than that of the third driving wheel.
Specifically, the screens subassembly including set up spring in the connecting rod and with spring fixed connection's fixture block.
The utility model relates to a wheel chi with range regulatory function's beneficial effect is, through control mechanism's regulation, can switch the size of range according to measuring distance's difference, and the operation is swift, improves measurement accuracy.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a wheel ruler with a range adjusting function according to the present invention;
FIG. 2 is a schematic view of the connection structure between the measuring wheel and the transmission case of the wheel ruler with range adjusting function of the present invention;
fig. 3 is a schematic view of a connection structure of an adjusting device of a wheel ruler with a range adjusting function according to the present invention;
fig. 4 is a schematic view of a connection structure between an adjusting wheel and a control mechanism of the wheel ruler with range adjusting function of the present invention;
fig. 5 is a schematic structural diagram of a control mechanism of the wheel ruler with range adjusting function according to the present invention;
in the figure: 1. the measuring device comprises a handle, a supporting rod 2, a buffer device 3, a counting box 4, an auxiliary wheel 5, a transmission box 6, a measuring wheel 7, a control mechanism 8, a rotating block 81, a connecting rod 82, an adjusting wheel 83, a spring 84 and a clamping block 85;
91. a first rotating ring, 92, a second rotating ring, 93, a third rotating ring;
10. the driving device comprises a driving belt, 11, a driving wheel, 12, a first driving wheel, 13, a second driving wheel and 14, a third driving wheel.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-2, a wheel ruler with range adjusting function comprises a handle 1, a support rod 2 connected with the handle 1, a counting box 4 fixed with the support rod 2 and provided with a counting device inside, a measuring wheel 7, and a transmission box 6 connected with the counting box 4 and the measuring wheel 7 and provided with an adjusting device inside;
as shown in fig. 3-5, the adjusting device includes an adjusting ring disposed on the transmission case 6, an adjusting wheel disposed in the transmission case 6 and fixed to the measuring wheel 7, a transmission wheel 11 connected to the counting device, a transmission belt 10 connecting the transmission wheel 11 and the adjusting wheel, and a control mechanism 8 for adjusting the position of the transmission belt 10, the adjusting ring includes a first rotating ring 91, a second rotating ring 92, and a third rotating ring 93 connected to each other, the adjusting wheel includes a first driving wheel 12, a second driving wheel 13, and a third driving wheel 14, the control mechanism 8 includes a rotating block 81, a connecting rod 82 passing through the adjusting ring, an adjusting wheel 83 contacting the transmission belt 10, and a plurality of detent assemblies.
Specifically, the supporting rod 2 is provided with a buffer device 3. The buffer device 3 can buffer the vibration, so that an operator can operate the wheel ruler more comfortably.
Specifically, an auxiliary wheel 5 is arranged below the counting box 4. The auxiliary wheel 5 can prevent the wheel ruler from falling backwards.
Specifically, the diameter of the third rotating ring 93 is smaller than the diameter of the second rotating ring 92, and the diameter of the second rotating ring 92 is smaller than the diameter of the first rotating ring 91.
Specifically, the diameter of the first driving wheel 12 is larger than the diameter of the second driving wheel 13, and the diameter of the second driving wheel 13 is larger than the diameter of the third driving wheel 14.
Specifically, the locking assembly includes a spring 84 disposed in the connecting rod 82 and a locking block 85 fixedly connected to the spring 84.
The working principle of the wheel ruler with the range adjusting function is as follows: since the counting range of the counting device in the counting box 4 is fixed, the operator can adjust the range by the control mechanism 8, when the measuring distance is short, the worker moves the adjusting wheel 83 to just above the first driving wheel 12 through the rotating block 81 and the connecting rod 82, and moves the connecting rod 82 in the third rotating ring 93, and the transmission belt 10 is in contact with the first driving wheel 12, the number of times of the counting device is increased by one rotation of the first driving wheel 12 due to the maximum diameter of the first driving wheel 12, and the number of times of the counting device is limited, and the range is minimized, when the measuring distance is relatively long, the worker moves the adjusting wheel 83 to just above the second driving wheel 13 through the rotating block 81 and the connecting rod 82, and moves the connecting rod 82 in the second rotating ring 92, and the transmission belt 10 is in contact with the second driving wheel 13, since the diameter of the second driving wheel 13 is smaller than that of the first driving wheel 12, the range of the wheel ruler is lengthened, when the measuring distance is large, the worker moves the adjusting wheel 83 to the position right above the third driving wheel 14 through the rotating block 81 and the connecting rod 82, and moves the connecting rod 82 in the first rotating ring 91 to contact the transmission belt 10 with the third driving wheel 14, and since the diameter of the third driving wheel 14 is smaller than that of the second driving wheel 13 and the number of counting turns of the counting device has an upper limit, the range of the wheel ruler is maximized.
Compared with the prior art, the wheel ruler with the range adjusting function can switch the range according to the difference of the measuring distance through the adjustment of the control mechanism 8, the operation is rapid, and the measuring precision is improved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A wheel ruler with a range adjusting function is characterized by comprising a handle, a supporting rod connected with the handle, a counting box fixed with the supporting rod and internally provided with a counting device, a measuring wheel and a transmission box connected with the counting box and the measuring wheel and internally provided with an adjusting device;
adjusting device is in including setting up regulation circle on the transmission case, setting be in the transmission case and with the fixed regulating wheel of measuring wheel, with the drive wheel that counting assembly connects, connect the drive belt of drive wheel and regulating wheel, the control mechanism who adjusts the drive belt position, the regulation circle includes that interconnect's first rotation circle, second rotate circle and third rotate the circle, the regulating wheel includes first drive wheel, second drive wheel and third drive wheel, control mechanism includes the turning block, passes the connecting rod of regulation circle, the regulating wheel and a plurality of screens subassembly that contact with the drive belt.
2. The wheel rule with range adjustment function of claim 1, wherein the support rod is provided with a buffer device.
3. The wheel ruler with range adjustment function as claimed in claim 1, wherein an auxiliary wheel is provided under the counting box.
4. The wheel rule with range adjustment of claim 1 wherein the third rotation circle has a diameter smaller than the second rotation circle, the second rotation circle having a diameter smaller than the first rotation circle.
5. The wheel rule with range adjustment of claim 1, wherein the diameter of the first drive wheel is larger than the diameter of the second drive wheel, which is larger than the diameter of the third drive wheel.
6. The wheel rule with range adjustment function of claim 1, wherein the blocking component comprises a spring disposed in the connecting rod and a block fixedly connected with the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488919.8U CN209945298U (en) | 2019-04-11 | 2019-04-11 | Wheel ruler with range adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488919.8U CN209945298U (en) | 2019-04-11 | 2019-04-11 | Wheel ruler with range adjusting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209945298U true CN209945298U (en) | 2020-01-14 |
Family
ID=69127520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920488919.8U Active CN209945298U (en) | 2019-04-11 | 2019-04-11 | Wheel ruler with range adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209945298U (en) |
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2019
- 2019-04-11 CN CN201920488919.8U patent/CN209945298U/en active Active
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