CN111412803A

CN111412803A - Folding ruler

Info

Publication number: CN111412803A
Application number: CN202010070885.8A
Authority: CN
Inventors: 刘平平; 俞强; 缪正; 方杰; 殷志敏; 寿峰; 李响; 王志勇; 季世超; 王琳慧; 李石; 张健
Original assignee: Zhejiang Tailun Power Group Co ltd
Current assignee: Zhejiang Tailun Power Group Co ltd; Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-07-14

Abstract

The invention discloses a folding ruler, which comprises a plurality of measuring scale units which are connected in an end-to-end manner, wherein scales are arranged on the measuring scale units, two adjacent measuring scale units are rotatably connected, and a horizontal limiting mechanism is arranged between the end parts of the two adjacent measuring scale units; one end of the folding ruler is provided with a clamping device; and each measuring scale unit is provided with a light-emitting strip. When the folding ruler is not used, the folding ruler is folded in a Z-shaped folding mode, so that the size of the folding ruler can be reduced, the folding ruler is convenient to carry, when measurement is needed, the folding ruler is unfolded and straightened, the horizontal limiting mechanism can ensure that the measuring ruler is positioned on the same straight line, and compared with a measuring tape, the folding ruler cannot be bent like the measuring tape after being unfolded, and the use is convenient.

Description

Folding ruler

Technical Field

The invention relates to a measuring device, in particular to a folding ruler.

Background

And (4) passing inspection and acceptance before the newly-built power transmission line is put into operation. In the process of acceptance, the distance from the wire clamp outlet to the damper needs to be measured by using a measuring tape. Because the tape measure is softer, take place easily when the tape measure extends to 1 meter or longer distance and buckle, it is difficult to measure like this alone, need one person to pull the one end of tape measure, another person pulls the other end of tape measure, straightens the tape measure, just so can the accurate measurement fastener export to damper distance, it is comparatively troublesome to measure like this.

Disclosure of Invention

The invention aims to solve the problems that when the distance from a wire clamp outlet to an anti-vibration hammer is measured by using a conventional measuring tape, the measuring tape is soft, and is easy to bend when the measuring tape extends to a certain distance, so that the measuring is troublesome, and the folding ruler is provided and can effectively solve the problems.

The purpose of the invention is realized by the following technical scheme: a folding ruler comprises a plurality of measuring scale units which are connected in an end-to-end mode, wherein scales are arranged on the measuring scale units, two adjacent measuring scale units are connected in a rotating mode, and a horizontal limiting mechanism is arranged between the end portions of the two adjacent measuring scale units; one end of the folding ruler is provided with a clamping device; and each measuring scale unit is provided with a light-emitting strip.

In the invention, when not in use, the folding ruler is folded in a Z-shaped folding mode, so that the volume of the folding ruler can be reduced and the folding ruler is convenient to carry. When needs were measured, expand folding ruler and flare-out, horizontal stop gear can guarantee that the dipperstick is located and is in same straight line. Compared with a tape measure, the invention can not be bent like the tape measure after being unfolded, and is more convenient to use. The clamping device arranged at one end of the folding ruler can clamp one end of an object to be measured during measurement, and measurement operation is facilitated. The luminous strip can give out light at night, and the operating personnel of being convenient for sees the scale clearly at night.

Preferably, stop gear is including setting up limiting plate and the recess at two adjacent dipperstick unit tip respectively, and the limiting plate is corresponding along the axial overhang of dipperstick unit, limiting plate and recess, is provided with first magnet on the limiting plate, and the recess bottom is provided with the second magnet corresponding with first magnet. When folding chi expandes, during the limiting plate removed to the recess, limiting plate and the laminating of recess bottom surface, the first magnet on the limiting plate and the second magnet inter attraction of recess bottom to make folding chi can be in the level state of expandeing.

Preferably, the first magnet and the second magnet are both neodymium iron boron magnets.

Preferably, the light bar is made of a fluorescent material.

Preferably, the measuring scale unit is made of an acrylic material.

Preferably, the clamping device comprises a base, a fixed clamping plate and a movable clamping plate which moves relative to the fixed clamping plate are arranged on the base, and a push rod is arranged on one side, far away from the fixed clamping plate, of the movable clamping plate; the base is provided with a threaded hole, a screw rod is connected with the threaded hole in a threaded mode, the screw rod and the push rod are coaxially arranged, and a pressure amplifier is arranged between the screw rod and the push rod. By rotating the screw rod, the movable clamping plate and the fixed clamping plate are pushed to be close to each other, so that the measured object is clamped. The pressure amplifier can improve the clamping force between the two clamping plates, thereby improving the clamping effect.

Preferably, the pressure amplifier comprises a cylinder body, a first piston cavity is formed in one end, close to the screw rod, of the cylinder body, a second piston cavity is formed in one end, close to the push rod, of the cylinder body, the first piston cavity is communicated with the second piston cavity, the cross-sectional area of the second piston cavity is larger than that of the first piston cavity, a first piston is arranged in the first piston cavity, a second piston is arranged in the second piston cavity, hydraulic oil is filled between the first piston and the second piston, one end of the screw rod is abutted to the first piston, and one end, far away from the movable clamping plate, of the push rod is connected with the second piston. The working principle of the pressure amplifier is as follows: the screw rod is rotated to enable the screw rod to move forwards, the screw rod drives the first piston to move forwards when moving forwards, and the second piston moves forwards under the action of hydraulic oil when the first piston moves forwards, so that the push rod and the pressure plate are pushed to move forwards; because the cross-sectional area of the second piston cavity is larger than that of the first piston cavity, and the area of the second piston is also larger than that of the first piston, the pressure acting on the second piston is larger than that on the first piston, so that the effect of amplifying the pressure is achieved, and the clamping force of the clamping device is improved.

Preferably, a rubber pad is arranged on one side of the movable clamping plate, which is close to the fixed clamping plate.

The invention has the beneficial effects that: when the folding ruler is not used, the folding ruler is folded in a Z-shaped folding mode, so that the size of the folding ruler can be reduced, the folding ruler is convenient to carry, when measurement is needed, the folding ruler is unfolded and straightened, the horizontal limiting mechanism can ensure that the measuring ruler is positioned on the same straight line, and compared with a measuring tape, the folding ruler cannot be bent like the measuring tape after being unfolded, and the use is convenient.

Drawings

Fig. 1 is a schematic view of the unfolded structure of the present invention.

Fig. 2 is a schematic structural view after the folding of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a cross-sectional view of the clamping device.

In the figure: 1. dipperstick unit, 2, light-emitting strip, 3, clamping device, 4, limiting plate, 5, first magnet, 6, recess, 7, second magnet, 8, base, 9, solid fixed splint, 10, cylinder body, 11, first piston chamber, 12, second piston chamber, 13, first piston, 14, second piston, 15, screw rod, 16, push rod, 17, removal splint, 18, rubber pad.

Detailed Description

The invention is further described by the following detailed description in conjunction with the accompanying drawings.

Example 1:

as shown in fig. 1 to 4, a folding ruler comprises a plurality of measuring ruler units 1 which are connected end to end. The measuring scale unit 1 is made of an acrylic material. The measuring scale unit 1 is provided with scales. Two adjacent measuring rule units 1 are rotatably connected. And a horizontal limiting mechanism is arranged between the end parts of the two adjacent measuring scale units. The horizontal limiting mechanism comprises a limiting plate 4 and a groove 6 which are respectively arranged at the end parts of two adjacent measuring scale units 1. The limit plate 4 overhangs along the axial direction of the measuring scale unit 1. The limiting plate 4 corresponds to the groove 6. The limiting plate 4 is provided with a first magnet 5, and the bottom of the groove 6 is provided with a second magnet 7 corresponding to the first magnet 5. The first magnet 5 and the second magnet 7 are both neodymium iron boron magnets. Each measuring scale unit 1 is provided with a light-emitting strip 2. The light bar 2 is made of a fluorescent material.

The folding ruler is provided with a clamping device at one end, the clamping device comprises a base 8, a base 8 is of a model L, a fixed clamping plate 9 and a movable clamping plate 17 moving relative to the fixed clamping plate 9 are arranged on the base 8, a push rod 16 is arranged on one side, far away from the fixed clamping plate, of the movable clamping plate, the push rod 16 is perpendicular to the movable clamping plate 17, the push rod 16 is of a circular rod-shaped structure, a threaded hole is formed in the base 8, a screw rod 15 is connected in a threaded mode in the threaded hole, the screw rod 15 is coaxially arranged with the push rod 16, a pressure amplifier is arranged between the screw rod 15 and the push rod 16, the pressure amplifier is arranged in the base 8, the cylinder 10 is provided with a first piston cavity 11 at one end, close to the screw rod 15, a second piston cavity 12 is arranged in the cylinder 10, the end, close to the push rod 16, of the piston cavity 11 is communicated with the second piston cavity 12, the cross-sectional area of the second piston cavity 12 is larger than that of the first piston cavity 11, a second piston cavity 13 is arranged in the first piston cavity 12, a second piston cavity 14 is arranged between the first piston 13 and the second piston 14, one end, which is filled with the screw rod 13, the end of the piston 14, the piston is connected with the first piston 13, the second piston 14, the piston is abutted to the piston, the piston cavity is connected with the first clamping plate, the piston cavity, the piston 14, the piston is used for driving the piston, the piston is used for driving the piston.

In the invention, when not in use, the folding ruler is folded in a Z-shaped folding mode, so that the volume of the folding ruler can be reduced and the folding ruler is convenient to carry. When needs were measured, expand folding ruler and flare-out, horizontal stop gear can guarantee that the dipperstick is located and is in same straight line. Compared with a tape measure, the invention can not be bent like the tape measure after being unfolded, and is more convenient to use. The luminous strip can give out light at night, and the operating personnel of being convenient for sees the scale clearly at night.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A folding ruler is characterized in that: the measuring device comprises a plurality of measuring scale units which are connected in an end-to-end manner, wherein scales are arranged on the measuring scale units, two adjacent measuring scale units are rotatably connected, and a horizontal limiting mechanism is arranged between the end parts of the two adjacent measuring scale units; one end of the folding ruler is provided with a clamping device; and each measuring scale unit is provided with a light-emitting strip.

2. The folding ruler of claim 1, wherein the horizontal limiting mechanism comprises a limiting plate and a groove which are respectively arranged at the end parts of two adjacent measuring scale units, the limiting plate is overhung along the axial direction of the measuring scale units, the limiting plate corresponds to the groove, a first magnet is arranged on the limiting plate, and a second magnet corresponding to the first magnet is arranged at the bottom of the groove.

3. A folding rule according to claim 2, wherein the first and second magnets are neodymium iron boron magnets.

4. A folding rule according to claim 1, characterized in that the luminous strip is made of fluorescent material.

5. A folding rule according to claim 1, characterized in that the measuring rule unit is made of acrylic material.

6. The folding ruler of claim 1, wherein the clamping device comprises a base, a fixed clamping plate and a movable clamping plate which moves relative to the fixed clamping plate are arranged on the base, and a push rod is arranged on one side of the movable clamping plate away from the fixed clamping plate; the base is provided with a threaded hole, a screw rod is connected with the threaded hole in a threaded mode, the screw rod and the push rod are coaxially arranged, and a pressure amplifier is arranged between the screw rod and the push rod.

7. The folding ruler of claim 6, wherein the pressure amplifier comprises a cylinder, a first piston cavity is formed in one end, close to the screw, of the cylinder, a second piston cavity is formed in one end, close to the push rod, of the cylinder, the first piston cavity is communicated with the second piston cavity, the cross-sectional area of the second piston cavity is larger than that of the first piston cavity, a first piston is arranged in the first piston cavity, a second piston is arranged in the second piston cavity, hydraulic oil is filled between the first piston and the second piston, one end of the screw abuts against the first piston, and one end, far away from the movable clamping plate, of the push rod is connected with the second piston.

8. A folding rule according to claim 6, characterized in that the side of the movable clamping plate close to the fixed clamping plate is provided with a rubber pad.