TWI586940B - Distance measuring wheel - Google Patents

Description

Ranging wheel

The present invention relates to a distance measuring wheel, and more particularly to a folding type of measuring wheel.

The distance measuring wheel is a tool that uses the rotation of the wheel body to measure the distance, and is generally applied to road engineering or road accidents.

The measuring wheel comprises a rod-shaped frame, a wheel body and a code table, wherein the wheel body is pivoted on the rod-shaped frame, and the wheel body is linked with the digital roller in the code table, thereby converting the wheel body on the road surface The distance to scroll. At the same time, the brake wheel structure of the interlocking wheel body and the return-to-zero structure of the interlocking code table can be further installed on the measuring wheel.

The brake structure and the return-to-zero structure in the measuring wheel with the folding function are respectively controlled by the two cables in the rod frame. However, the two cables are easily entangled in each other in the foldable rod-shaped frame, which affects the interlocking structure and the return-to-zero structure. And in the long-term use state, the cable is easy to rub and damage.

In view of this, the inventor has been engaged in research and development and production experience in related industries for many years, and has conducted in-depth research on the problems currently faced, and has finally developed a utilization through long-term efforts, research and development and trial work. The tie rod replaces the gauge wheel of the conventional cable, which can greatly improve the shortcomings of the conventional technology, which is the design tenet of the invention.

SUMMARY OF THE INVENTION The object of the present invention is to provide a distance measuring wheel which, in the case of the same folding function, replaces the cable with a tie rod which is structurally stable and does not affect each other, thereby increasing the service life of the distance measuring wheel.

According to an embodiment of the present invention, a distance measuring wheel is provided, comprising a measuring wheel housing, a return-to-zero device, at least one folding fastening device, a wheel body, a return-to-zero control group, and a brake control group. The measuring wheel housing comprises a handle housing and a combined tube body, the combined tube body is connected to the handle housing and is combined by at least two hollow tube connections. The zeroing device is connected to the measuring wheel housing. The folding fastening device is installed at the junction of the two hollow tubes. The wheel body is pivoted to the zeroing device. The zeroing control group includes a zero return button, a three return zero lever and a two return to zero connection. The zero return button is pivotally disposed on the handle housing and protrudes from one side of the handle housing. The three return-to-zero pull rods are respectively disposed in the two hollow tubes and the return-to-zero device, wherein one of the return-to-zero devices of one of the zero-return devices is returned to the zero pick. The two return-to-zero connectors are respectively connected between two of the return-to-zero pull rods. The brake control group consists of a brake button, a three-wheeled trolley and a two-wheeled vehicle. The brake button is pivoted to the handle housing and the opposite zero button protrudes from the other side of the handle housing. The three brake levers are respectively disposed in the two hollow tubes and the return-to-zero device, wherein one of the zero-return devices is one of the brake-bar linkages of the brake-bar linkage device. Second car They are respectively fastened between the two levers of the brake lever.

According to an embodiment of the foregoing distance measuring wheel, wherein the number of the hollow tube, the return-to-zero cable and the brake cable are respectively three, the number of the zero-return rod and the brake rod is four. The brake control group may further include an elastic return member that abuts the brake button and the handle housing. The zero return control group further includes an elastic returning member and a protruding post, the protruding post is connected to the handle housing, and the elastic returning member abuts the zeroing button and the protruding post. The zeroing control group may further include an S-shaped pivot and a center pivot. The S-shaped pivot rod connects one of the zero return rods and interlocks the zero-pick. The central pivot extends with two pivot ends, the S-shaped pivot rod is pivotally disposed at one of the pivot ends, and the brake baffle is pivotally disposed at the other pivot end. The zero return button faces one of the grip ends of the handle housing. The number of the folding fastening devices may be two, which are respectively installed at the connection of the two hollow tubes and a connection between the hollow tube and the return-to-zero device.

Therefore, the distance measuring wheel proposed by the invention is provided with a zero return lever and a brake lever which do not interfere with each other in the hollow tube, so as to respectively link the zero return paddle and the brake pad, so as to avoid the conventional use of the cable linkage. Defects entangled with each other. In addition, the zero return button and the brake button in the distance measuring wheel are oppositely disposed on the handle housing, and the zero return button is directed toward the grip end of the handle housing, so that the user can complete the brake and zero at the same time with one hand. Control.

100‧‧‧Ranging wheel

200‧‧‧Round wheel housing

210‧‧‧Handle housing

211‧‧‧ Holding end

220‧‧‧Combined pipe body

221‧‧‧ hollow tube

300‧‧‧Return to zero device

310‧‧‧Return to zero

320‧‧‧ brake pads

400‧‧‧Folding fastening device

500‧‧‧ wheel body

610‧‧‧zero button

620‧‧‧ Zero pull rod

630‧‧‧Return to zero

640‧‧‧S type pivot

650‧‧‧ center pivot

651‧‧‧ pivot

660‧‧‧Bump

670, 740‧‧‧ elastic reset parts

710‧‧‧ brake button

720‧‧‧ brake lever

730‧‧‧煞车接索

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; .

2 is a schematic exploded view of the top of the measuring wheel of FIG. 1.

FIG. 3 is a partial schematic view showing the range wheel of FIG. 1.

4 is a schematic exploded view of the bottom of the measuring wheel of FIG. 1.

FIG. 5 is a schematic cross-sectional view showing the top of the measuring wheel of FIG. 2.

FIG. 6 is a schematic diagram showing the combination of a part of the zero return control group and a part of the brake control group in the distance measuring wheel of FIG. 2 .

FIG. 7 is an exploded perspective view of the partial zeroing control group and the partial brake control group of FIG. 6.

FIG. 8 is a schematic diagram showing the return-to-zero button of the zero return button in the zero return control group.

FIG. 9 is a schematic diagram showing the zero return lever linkage S-type pivot rod in the zero return control group and driving the zero return paddle.

FIG. 10 is a schematic diagram showing the brake button of the brake control unit in the brake control group.

FIG. 11 is a schematic view showing the brake lever linkage brake block in the brake control group.

Please refer to FIG. 1 , which is a perspective view of a distance measuring wheel according to an embodiment of the invention. The ranging wheel 100 includes a ranging The wheel housing 200, a return-to-zero device 300, a folding fastening device 400, a wheel body 500, a return-to-zero control group, and a brake control group.

Referring to FIG. 2 to FIG. 7 together, a top exploded view of the distance measuring wheel 100 of FIG. 1 is illustrated. FIG. 3 is a partial schematic view showing the range wheel of FIG. 1. 4 is a schematic exploded view of the bottom of the measuring wheel of FIG. 1. FIG. 5 is a schematic cross-sectional view showing the top of the measuring wheel of FIG. 2. FIG. 6 is a schematic diagram showing the combination of a part of the zero return control group and a part of the brake control group in the distance measuring wheel of FIG. 2 . FIG. 7 is an exploded perspective view of the partial zeroing control group and the partial brake control group of FIG. 6. The measuring wheel housing 200 includes a handle housing 210 and a combined tube body 220. The handle housing 210 has a holding end 211. The combined tube body 220 is formed by connecting at least two hollow tubes 221, although shown in FIG. The number of the hollow tubes 221 is two, but is not limited thereto. The top exploded view, the central exploded view, and the bottom exploded view shown in FIG. 2 to FIG. 4 only disassemble the structure of the distance measuring wheel 100 in FIG. 1 into three parts, and there is no special definition here.

The zeroing device 300 is coupled to the gauge wheel housing 200 via a folding fastening device 400. Herein, it is specifically described that the zeroing device 300 has a function of returning the zero value of the ranging code table, which will not be described herein. The zeroing device 300 includes a return paddle 310 and a brake pad 320.

The two folding fastening devices 400 are respectively installed at the junction of the two hollow tubes 221 and the junction of a hollow tube 221 and the return-to-zero device 300. The folding fastening device 400 provides the function of folding the combined tubular body 220.

The wheel body 500 is pivoted to the zeroing device 300, and the function of measuring the distance of the distance measuring wheel 100 is measured by measuring the number of revolutions of the wheel body 500.

The zeroing control group includes a zero return button 610, a three return zero lever 620, a two return zero cable 630, an S-type pivot rod 640, a center pivot 650, a stud 660, and an elastic return member 670. The zero return button 610 is pivotally disposed on the handle housing 210 and protrudes from one side of the handle housing 210. The three return rods 620 are respectively disposed in the two hollow tubes 221 and the zero return device 300. One of the zero return rods 620 located in the zero return device 300 interlocks with the zero return sheet 310 of the zero return device 300. The two return-to-zero connectors 630 are respectively fastened between two of the return-to-zero pull rods 620. The S-shaped pivot rod 640 is coupled to one of the zero return rods 620 and thereby interlocks the zero return pad 310. The central pivot 650 extends with two pivot ends 651, and the S-shaped pivot rod 640 is pivotally mounted to one of the pivot ends 651. The protrusion 660 is connected to the handle housing 210, and the elastic return member 670 abuts the zero return button 610 and the stud 660.

The brake control group includes a brake button 710, a three-bar linkage 720, a two-car linkage 730, and an elastic return member 740. The brake button 710 is pivotally disposed on the handle housing 210 and protrudes from the other side of the handle housing 210 with respect to the zero return button 610. The three brake rods 720 are respectively disposed on the two hollow tubes 221 and the return-to-zero device 300. The brake rods 720 of one of the return-to-zero devices 300 are linked to the brake block 320 of the zeroing device 300, and the brake block 320 is pivoted at the center pivot. The other pivot end 651 of the shaft 650. The two brake cables 730 are respectively fastened between the two brake levers 720 of the brake lever 720. elasticity The reset member 740 abuts the brake button 710 and the handle housing 210.

If the total length of the measuring wheel 100 is increased, the number of the hollow tube 221, the return-to-zero cable 630, and the brake cable 730 may be three, respectively, and the number of the return rod 620 and the brake rod 720 may be four. . The number of folding fastening devices 400 determines the number of returning wires 630 and braking cables 730, respectively.

Please refer to FIG. 3 and FIG. 8 to FIG. 11 simultaneously. FIG. 8 is a schematic diagram showing the zero return button 610 interlocking the zero return lever 620 in the zero return control group. FIG. 9 is a schematic diagram showing the zero return lever 620 interlocking the S-shaped pivot rod 640 and driving the zero return pad 310 in the zero return control group. FIG. 10 is a schematic diagram showing the brake button 710 and the brake lever 720 in the brake control group. FIG. 11 is a schematic diagram showing the brake lever 720 interlocking the brake block 320 in the brake control group.

The zero return function of the distance measuring wheel 100 is as follows. When the zero return button 610 is pressed, the zero return button 610 abutting the elastic returning member 670 will interlock the zero return lever 620 in the hollow tube 221, and the zero return lever 620 Pulling the zero return cable 630 and then interlocking another zero return rod 620, the zero return rod 620 drives the S-shaped pivot rod 640 pivoted on the central pivot 650, and finally drives the zero return paddle 310 to reach the gripping end 211. It can control the function of zeroing the ranging code table. The return button 610 is returned to the unstressed position by the restoring force of the resilient return member 670.

The braking function of the measuring wheel 100 is as follows when pressed After the brake button 710 is braked, the brake button 710 abutting the elastic return member 740 will pull the brake lever 720 in the hollow tube 221, and the brake lever 720 pulls the brake cable 730 and then interlocks another brake lever 720, and finally borrows This drives the brake pad 320 to achieve the function of controlling the wheel body 500 to be braked at the grip end 211. The brake button 710 is returned to the unstressed position by the restoring force of the elastic return member 740.

The distance measuring wheel proposed by the present invention can be known from the foregoing embodiments and examples, and has the following advantages:

1. The zero return rod and the brake rod do not affect each other in the hollow tube, which has the advantages of stable structure and increased life of the measuring wheel.

2. The zero return button and the brake button in the distance measuring wheel are oppositely disposed on the handle housing, and the zero return button is directed toward the grip end of the handle housing, so that the user can complete the braking and zeroing at the same time with one hand. Control.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Ranging wheel

200‧‧‧Round wheel housing

210‧‧‧Handle housing

211‧‧‧ Holding end

220‧‧‧Combined pipe body

221‧‧‧ hollow tube

300‧‧‧Return to zero device

400‧‧‧Folding fastening device

500‧‧‧ wheel body

610‧‧‧zero button

710‧‧‧ brake button

Claims (6)

A distance measuring wheel comprising: a measuring wheel housing comprising: a handle housing; and a combined tube body connected to the handle housing and combined by at least two hollow tubes; a reset device It is connected to the measuring wheel housing; at least one folding fastening device is installed at the connection of the two hollow tubes; a wheel body is pivoted to the zeroing device; and a zeroing control group includes: a zero return button pivotally disposed on the handle housing and protruding from one side of the handle housing, the zero return button facing a grip end of the handle housing; and three return rods respectively disposed on the second In the hollow tube and the return-to-zero device, wherein the return-to-zero pull rod of one of the zero-returning devices is linked to one of the zero-returning devices, and the two return-to-zero cables are respectively fastened to the zero-returning One of the two returning rods in the drawbar; and a brake control group comprising: a brake button pivotally disposed on the handle housing and protruding from the other side of the handle housing relative to the zero return button a three-turner lever, which is respectively disposed in the two hollow tubes and the return-to-zero device, wherein the return to zero One of the braking rod opposite one of said interlocking brake flap means zero; and two brake cable connected respectively to the plurality of fastening in which the brake rod Two brakes between the levers. The measuring wheel of claim 1, wherein the number of the hollow tubes, the return-to-zero cables and the plurality of the cables are three, respectively, the zero-return rods and the brake rods The number is four. The measuring wheel of claim 1, wherein the braking control group further comprises an elastic returning member that abuts the brake button and the handle housing. The measuring wheel of claim 1, wherein the zeroing control group further comprises an elastic returning member and a protruding post, the protruding post is connected to the handle housing, and the elastic returning member abuts the zeroing button And the stud. The measuring wheel of claim 1, wherein the zeroing control group further comprises: an S-shaped pivot rod connecting one of the zero return levers and interlocking the zero return pad; and a center pivot The extension has two pivot ends, and the S-shaped pivot is pivotally disposed on one of the pivot ends, and the brake pad is pivotally disposed on the other pivot end. The measuring wheel of claim 1, wherein the number of the folding fastening devices is two, which are respectively installed at a connection between the two hollow tubes and a hollow tube and the zero return device. Junction.