CN217930122U

CN217930122U - Wheel type distance measuring instrument

Info

Publication number: CN217930122U
Application number: CN202221841384.6U
Authority: CN
Inventors: 刘彦邦; 刘勇进; 李红亮; 尹伟; 吴成俊
Original assignee: Hunan Fangyuan Engineering Consulting And Supervision Co ltd
Current assignee: Hunan Fangyuan Engineering Consulting And Supervision Co ltd
Priority date: 2022-07-16
Filing date: 2022-07-16
Publication date: 2022-11-29
Anticipated expiration: 2032-07-16

Abstract

The application discloses wheeled distancer relates to the distancer field, and it includes support and gyro wheel, the support includes mobile jib and support frame, the mobile jib is installed on the support frame, gyro wheel (coaxial arrangement has the dwang, the dwang is connected on the support frame, be equipped with on the support frame with the restriction gyro wheel pivoted locating part this application passes through the setting of locating part, has the effect that can solve the leading to the fact measuring error of wheeled distancer idle running in the air.

Description

Wheel type distance measuring instrument

Technical Field

The application relates to the field of distance measuring instruments, in particular to a wheel type distance measuring instrument.

Background

The distance measurement is a step which cannot be skipped in scenes such as design, construction and the like; there are many common distance measuring tools available on the market, such as measuring scales, wheel rangefinders, laser rangefinders. The distance measured by the measuring ruler is limited, and the laser distance measuring instrument is too high in price, so that the wheel type distance measuring instrument is used for measuring the distance in many construction sites.

The wheel type distance measuring instrument is one of distance measuring instruments and is mainly designed and manufactured for outdoor distance measurement. The principle is that the distance between two points can be known by calculating the number of turns of the roller with known circumference.

However, in the process of measuring the distance between two places using the wheel rangefinder, it is inevitable that the surface to be measured is uneven, or the wheel rangefinder needs to be lifted up in the middle.

In view of the above-mentioned related art, the inventor believes that the roller of the wheel-type distance meter may be idle in the air, which affects the accuracy of measurement.

SUMMERY OF THE UTILITY MODEL

In order to improve wheeled distancer's measurement accuracy, this application provides a wheeled distancer.

The application provides a pair of wheeled distancer adopts following technical scheme:

the utility model provides a wheeled distancer, includes support and gyro wheel, the support includes mobile jib and support frame, the mobile jib is installed on the support frame, gyro wheel coaxial arrangement has the dwang, rotating the connection on the support frame, be equipped with on the support frame with the restriction gyro wheel pivoted locating part.

Through adopting above-mentioned technical scheme, when measuring, through the gyro wheel rotate can, and when finishing measuring or need lift up the measuring apparatu, restrict the gyro wheel through the locating part and rotate to can prevent that the gyro wheel from rotating when the non-measurement, improve wheeled distancer's the degree of accuracy.

Optionally, the limiting part includes a limiting rod and a sliding block, the limiting rod is fixedly connected to the support frame, the rotating rod is inserted into the sliding block, and the roller slides along the length direction of the support frame so that the limiting rod is abutted to or separated from the inner wall of the roller.

By adopting the technical scheme, the roller can slide along the length direction of the supporting seat, and when the roller slides upwards along the length direction of the supporting frame, the limiting rod is not abutted against the inner wall of the roller; when the roller slides downwards along the length direction of the support frame, the limiting rod is abutted against the inner wall of the roller to prevent the roller from rotating; the roller can be limited.

Optionally, a ratchet tooth socket for inserting the limiting rod is formed in the inner wall of the roller.

Through adopting above-mentioned technical scheme, the ratchet tooth's socket can let the rotation of the faster prevention gyro wheel of gag lever post.

Optionally, the sliding block is fixedly connected with a spring, and the other end of the spring is fixedly connected to the support frame.

Through adopting above-mentioned technical scheme, the spring can let the gyro wheel more smooth and easy when sliding along support frame length direction to can accelerate the gyro wheel along the decurrent slip of support frame length direction, can let the gag lever post faster with gyro wheel inner wall butt, shorten locating part start-up time.

Optionally, the support frame includes a T-shaped rod and two leg rods, and the leg rods are fixedly connected to the T-shaped rod; the roller is arranged between the two foot rods.

Through adopting above-mentioned technical scheme, the gyro wheel can be more light install on the support frame.

Optionally, the support frame is provided with a groove for inserting the main rod, and the main rod is inserted into the groove and is positioned by a bolt.

Through adopting above-mentioned technical scheme, divide into two parts that can the dismouting with the support, be convenient for accomodate.

Optionally, the main rod comprises a front rod, a connecting rod and a holding rod; one end of the front rod is connected with the support frame, the other end of the front rod is provided with a first inner cavity for accommodating the connecting rod, and one end of the connecting rod, far away from the front rod, is provided with a second inner cavity for accommodating the holding rod; the front rod and the connecting rod, and the connecting rod and the holding rod are positioned through a positioning mechanism.

Through adopting above-mentioned technical scheme, let the mobile jib can stretch out and draw back in order to adjust length, satisfy user's individuality difference.

Optionally, the holding rod is provided with a holding groove.

Through adopting above-mentioned technical scheme, comfort level when can promote the use.

To sum up, the application comprises the following beneficial technical effects:

1. by arranging the limiting rod and the sliding block, the problem of measurement errors caused by idle running of the wheel type distance meter in the air can be solved;

2. this application is through the setting of mobile jib, and the dismouting of being convenient for is accomodate, satisfies the individuality difference of user's height.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a wheel-type distance meter according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the roller and the support bracket of FIG. 1 taken along a central axis of the pivot shaft;

fig. 3 is a cross-sectional view of the boom of fig. 1.

Description of reference numerals:

11. a roller; 12. rotating the rod; 111. a ratchet tooth groove; 2. a support frame; 21. a foot bar; 22. a T-shaped rod; 211. a slider; 212. a spring; 213. a chute; 214. a limiting rod; 221. a groove; 3. a main rod; 31. a front bar; 32. a connecting rod; 33. a holding rod; 311. a first inner cavity; 321. a second inner cavity; 331. holding the groove; 34. a positioning mechanism.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses wheeled distancer. Referring to fig. 1 and 2, the wheel-type distance measuring instrument includes a bracket and a roller 11, wherein a rotating rod 12 is coaxially fixed to the roller 11 through a key; the support comprises a main rod 3 and a support frame 2, and the main rod 3 is inserted into the support frame 2 and fixed through a bolt; the support frame 2 comprises a T-shaped rod 22 and two foot rods 21, and the foot rods 21 and the T-shaped rod 22 are fixedly connected through screws; the opposite side walls of the two foot rods 21 are provided with sliding grooves 213 along the length direction of the foot rods 21, sliding blocks 211 and springs 212 are further arranged in the sliding grooves 213, the sliding blocks 211 are connected in the sliding grooves 213 in a sliding manner, the springs 212 are arranged in the sliding grooves 213, the length direction of the springs 212 is arranged along the sliding direction of the sliding blocks 211, one ends of the springs 212 are fixedly connected to the side walls of the sliding grooves 213, and the other ends of the springs 212 are fixedly connected to the sliding blocks 211; the sliding block 211 is provided with a bearing, and two ends of the rotating rod 12 penetrate through the bearing to be respectively connected with the sliding block 211 of the two-foot rod 21 in a rotating way.

Referring to fig. 2, two limiting rods 214 are fixedly mounted on the leg rod 21 parallel to the axis of the rotating rod 12, when the roller 11 is in the air, the spring 212 is at the maximum length, the limiting rods 214 abut against the inner wall of the roller 11, and the inner wall of the roller 11 is provided with ratchet tooth grooves 111 into which the limiting rods 214 are inserted, and the limiting rods 214 are inserted into the ratchet tooth grooves 111 to effectively limit the rotation of the roller 11; when the roller 11 abuts against the measuring surface, the roller 11 will slide upwards along the length direction of the leg rod 21, the spring 212 will deform, the limiting rod 214 disengages from the ratchet tooth groove 111 on the inner wall of the roller 11, and the rotation of the roller 11 is released.

Referring to fig. 3, the main rod 3 is divided into a front rod 31, a connecting rod 32 and a holding rod 33, the front rod 31 is provided with a first inner cavity 311 for accommodating the connecting rod 32 along the length direction thereof, and the connecting rod 32 is provided with a second inner cavity 321 for accommodating the holding rod 33 along the length direction thereof; a positioning mechanism 34 is arranged between the front rod 31 and the connecting rod 32, and a positioning mechanism 34 is also arranged between the connecting rod 32 and the holding rod 33; when the main rod 3 needs to be shortened, the connecting rod 32 can be retracted into the front rod 31, and the holding rod 33 can be retracted into the connecting rod 32; when it is desired to extend the main lever 3, the connecting rod 32 and the grip 33 are all extended and then positioned by the positioning mechanism 34. In the present embodiment, the positioning mechanism 34 includes a screw, which is rotated to abut against the grip lever 33 or the connecting lever 32 to position the length of the main lever 3.

The implementation principle of this application embodiment wheel-type distancer does: through the rotating rod 12 and the sliding block 211, the roller 11 can rotate around the axis of the rotating rod 12 and slide along the length direction of the support frame 2, when the roller 11 is in distance measurement and is abutted with a measurement surface, the limiting rod 214 is separated from the inner wall of the roller 11, and when the roller 11 is in the air, the limiting rod 214 is automatically abutted with the inner wall of the roller 11, so that the function of automatic stop of the wheel type distance meter in the air is achieved; and simultaneously, the telescopic function of the main rod 3 is achieved through the cavities of the front rod 31 and the connecting rod 32 and the positioning mechanism 34.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a wheeled distancer, includes support and gyro wheel (11), the support includes mobile jib (3) and support frame (2), mobile jib (3) are installed on support frame (2), its characterized in that: the idler wheel (11) is rotatably connected to the support frame (2), and a limiting part for limiting the rotation of the idler wheel (11) is arranged on the support frame (2).

2. A wheeled rangefinder as claimed in claim 1, wherein: the locating part includes gag lever post (214), gag lever post (214) fixed connection is in on support frame (2), sliding connection has sliding block (211) on support frame (2), coaxial fixedly connected with dwang (12) on gyro wheel (11), dwang (12) with sliding block (211) rotate the connection, gyro wheel (11) slide so that gag lever post (214) butt or break away from gyro wheel (11) inner wall.

3. A wheeled rangefinder as claimed in claim 2, wherein: the inner wall of the roller (11) is provided with a ratchet tooth groove (111) for inserting the limiting rod (214).

4. A wheeled rangefinder according to claim 2, wherein; the sliding block (211) is fixedly connected with a spring (212), and the other end of the spring (212) is fixedly connected with the support frame (2); the length direction of the spring (212) is arranged along the sliding direction of the sliding block (211).

5. A wheeled rangefinder as claimed in claim 1, wherein: the support frame (2) comprises two foot rods (21) and a T-shaped rod (22), the T-shaped rod (22) is connected with the main rod (3), and the foot rods (21) are fixedly connected with the T-shaped rod (22); the roller (11) is arranged between the two foot rods (21).

6. A wheeled rangefinder as claimed in claim 1, wherein: the support frame (2) is provided with a groove (221) for inserting the main rod (3), and the main rod (3) is inserted into the groove (221) and is positioned through a bolt.

7. A wheeled rangefinder as claimed in claim 1, wherein: the main rod (3) comprises a front rod (31), a connecting rod (32) and a holding rod (33); one end of the front rod (31) is connected with the support frame (2), the other end of the front rod (31) is provided with a first inner cavity (311) for accommodating the connecting rod (32), and one end, far away from the front rod (31), of the connecting rod (32) is provided with a second inner cavity (321) for accommodating the holding rod (33); the front rod (31), the connecting rod (32) and the holding rod (33) are positioned through a positioning mechanism (34).

8. A wheeled rangefinder as claimed in claim 7, wherein: the holding rod (33) is provided with a holding groove (331).