Length detection device for metering detection

Abstract

The utility model relates to the technical field of measurement and detection, and discloses a length detection device for measurement and detection, which comprises a first connecting plate, a rotating shaft is arranged at the bottom of the first connecting plate, a second connecting plate is connected in the rotating shaft, scale marks are arranged on the upper surfaces of the first connecting plate and the second connecting plate, and the scale marks are arranged on the upper surfaces of the first connecting plate and the second connecting plate. The length detection device comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected through a bottom rotating shaft, sliding rails are arranged on the end faces of the two sides of the first connecting plate and the second connecting plate, and positioning holes are formed in the end faces of the outer sides of the first connecting plate and the second connecting plate. Therefore, the first connecting plate and the second connecting plate can rotate to reduce the length, and then the knob is rotated to drive the ruler belt to retract into the first connecting plate or the second connecting plate, so that the size of the detection device is reduced, and a user can carry the detection device more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of metrology detection, in particular to a length detection device for metrology detection. Background Art

[0002] Metrology testing is a process of obtaining a certain result by performing a series of repeated tests on the corresponding parameters of the measured object. In physics, it is usually a process performed on a tool by a measuring instrument to obtain the correct result. Length is a very important and basic measurement data in metrology testing. The corresponding length of the workpiece is measured by the length detection device.

[0003] When measuring the length of some objects, some measuring devices are large in size and are not convenient for users to carry. They also take up a lot of space and do not have a certain folding and storage effect to enable operators to carry them. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a length detection device for measurement and detection to solve the problem mentioned in the above background technology that when detecting the length of some objects, some detection devices are large in size and inconvenient for users to carry, and they take up a lot of space, and do not have a certain folding and storage effect to allow the operator to carry them.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a length detection device for metrological detection, comprising a first connecting plate, a rotating shaft is arranged at the bottom of the first connecting plate, a second connecting plate is connected inside the rotating shaft, scale lines are arranged on the upper surfaces of the first connecting plate and the second connecting plate, slide rails are arranged on both side end surfaces of the first connecting plate and the second connecting plate, positioning holes are arranged on the outer end surfaces of the first connecting plate and the second connecting plate, and winding rollers are arranged inside the first connecting plate and the second connecting plate near the bottom.

[0006] By adopting the above technical scheme, the first connecting plate and the second connecting plate are connected by the rotating shaft at the bottom, so that the first connecting plate and the second connecting plate can be rotated to reduce their length, and then the slide rails opened at both ends of the first connecting plate and the second connecting plate are convenient for the pulley to drive the block to move, and then the scale lines set on the first connecting plate and the second connecting plate are convenient for the user to know the length of the detected object, and then the positioning holes opened at the outer ends of the first connecting plate and the second connecting plate are convenient for fixing the extended first connecting plate and the second connecting plate, and then the winding rollers in the first connecting plate and the second connecting plate are convenient for winding up the tape.

[0007] Preferably, baffles to prevent limitation are provided at both ends of the winding roller, a knob is fixedly installed on the outer end face of the winding roller, an anti-sliding block is provided on the knob, a tape ruler is wound inside the winding roller, scale lines are also provided on the upper surface of the tape ruler, and a limiting block is provided at the front end of the tape ruler.

[0008] By adopting the above technical scheme, a longer tape is arranged in the winding roller so that the detection device can detect the length of some uneven detection objects. Then, the tape can be pulled out better because of the limit block arranged at the front end of the tape. At the same time, the limit block installed on the tape is at a right angle, which can better make the tape stuck at some corners. At the same time, the tape can also be limited to make it easier to pull out. Then, the tape can be reeled in by turning the knob.

[0009] Preferably, the material used for the tape ruler is polyvinyl chloride, also known as PVC.

[0010] By adopting the above technical solution, the material used for the ruler tape is PVC material, which has good waterproof, wear-resistant, anti-aging and other characteristics, so the life of the ruler tape can be extended.

[0011] Preferably, positioning blocks are connected to the positioning holes formed on the outer end surfaces of the first connecting plate and the second connecting plate.

[0012] By adopting the above technical solution, the positioning block is inserted into the positioning holes installed on the first connecting plate and the second connecting plate, so as to limit the first connecting plate and the second connecting plate to detect the length of some larger objects.

[0013] Preferably, a card plate is engaged with the first connecting plate, four pulleys are arranged at the bottom of the card plate, the four pulleys are engaged with slide rails provided on the end surfaces of both sides of the first connecting plate, and an adjustment block is arranged at the top of the card plate.

[0014] By adopting the above technical solution, the four pulleys installed at the bottom of the card plate are placed in the slide rails opened at both ends of the first connecting plate or the second connecting plate, so that the pulleys can drive the card plate to move forward and backward on the first connecting plate or the second connecting plate.

[0015] Preferably, a through hole is provided on the upper surface of the card plate, a marking pen is movably inserted into the through hole, and a fastening bolt for fixing the marking pen is provided on one end surface of the card plate.

[0016] By adopting the above technical solution, the marking pen is inserted into the through hole in the card plate and then the fastening bolt is rotated so that the fastening bolt can produce a certain extrusion force on the marking pen, thereby fixing the marking pen in the through hole to facilitate the fixation of marking pens of different sizes and the replacement of the marking pen.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. A length detection device for metrological detection is connected by a first connecting plate and a second connecting plate through a rotating shaft at the bottom, so that the first connecting plate and the second connecting plate can be rotated to reduce their length, and then the knob is turned to drive the ruler tape to be retracted into the first connecting plate or the second connecting plate, thereby reducing the volume of the detection device and making it more convenient for users to carry the detection device.

[0019] 2. This length detection device for metrological detection, when the marking pen is inserted into the through hole in the card plate, the fastening bolt is rotated so that the fastening bolt produces a certain squeezing force on the marking pen, thereby fixing the marking pen in the through hole so that the user can mark the length of the detection object in real time and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the length detection device of the utility model;

[0021] Figure 2 This is a schematic diagram of the extended three-dimensional structure of the length detection device of the utility model;

[0022] Figure 3 This is a schematic diagram of the winding roller and its related structures of the utility model;

[0023] Figure 4 The utility model is a schematic diagram of a marking pen and its related structures.

[0024] In the figure: 1. first connecting plate; 2. rotating shaft; 3. second connecting plate; 4. scale line; 5. slide rail; 6. positioning hole; 7. winding roller; 8. baffle; 9. knob; 10. tape; 11. limit block; 12. positioning block; 13. clamping plate; 14. pulley; 15. adjustment block; 16. through hole; 17. marking pen; 18. fastening bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] Please refer to Figure 1-4, a length detection device for measurement and detection, a rotating shaft 2 is provided at the bottom of the first connecting plate 1, a second connecting plate 3 is connected inside the rotating shaft 2, scale lines 4 are provided on the upper surfaces of the first connecting plate 1 and the second connecting plate 3, positioning holes 6 are provided on the outer end surfaces of the first connecting plate 1 and the second connecting plate 3, winding rollers 7 are provided near the bottom positions inside the first connecting plate 1 and the second connecting plate 3, baffles 8 for preventing limiting are provided at both ends of the winding roller 7, a knob 9 is fixedly installed on the outer end surface of the winding roller 7, an anti-sliding block is provided on the knob 9, a tape 10 is wound inside the winding roller 7, scale lines 4 are also provided on the upper surface of the tape 10, a limiting block 11 is provided at the front end of the tape 10, the material used for the tape 10 is polyvinyl chloride, also known as PVC, the positioning holes 6 provided on the outer end surfaces of the first connecting plate 1 and the second connecting plate 3 are connected to positioning blocks 12.

[0028] Working principle: The first connecting plate 1 and the second connecting plate 3 are connected by the rotating shaft 2 at the bottom, so the first connecting plate 1 and the second connecting plate 3 can be rotated to reduce the volume of the detection device, so that the user can carry it better, and the first connecting plate 1 and the second connecting plate 3 are both provided with a winding roller 7, and a longer ruler 10 is provided in the winding roller 7 to facilitate the detection device to detect the length of some uneven detection objects, and then the limiting block 11 provided at the front end of the ruler 10 can better enable the ruler 10 to be pulled out, and at the same time, it can prevent the ruler 10 from completely entering the first connecting plate 1 or the second connecting plate 3, and at the same time, the limiting block 11 installed on the ruler 10 is at a right angle, which can better enable the ruler 10 to be stuck at some edges and corners, making it more convenient for users to detect the length of some detection objects, and then the ruler 10 and the first connecting plate 1 and the second connecting plate 3 are provided with engraved The degree line 4 can better let the operator know the length of the detected object, and the material used for the tape 10 is PVC material, which has good waterproof, wear-resistant, and aging-resistant characteristics, so it can better extend the life of the tape 10. Then, the tape 10 can be reeled up by turning the knob 9, and then the baffles 8 installed at both ends of the reel 7 can prevent the tape 10 from being limited, so as to better carry the detection device. Then, the knob 9 is provided with an anti-sliding block to enable the user to rotate it better. Then, when the detected object is long, the second connecting plate 3 can be rotated to make the bottom of the second connecting plate 3 fit the bottom of the first connecting plate 1, and then the positioning block 12 can be inserted into the positioning hole 6 installed on the first connecting plate 1 and the second connecting plate 3, so as to limit the first connecting plate 1 and the second connecting plate 3 to detect the length of some larger objects.

[0029] Embodiment 2:

[0030] Please refer to Figure 1-4 A length detection device for measurement and detection, wherein slide rails 5 are provided on both side end surfaces of the first connecting plate 1 and the second connecting plate 3, a card plate 13 is clamped on the first connecting plate 1, and four pulleys 14 are provided at the bottom of the card plate 13, and the four pulleys 14 are clamped in the slide rails 5 provided on the both side end surfaces of the first connecting plate 1, an adjustment block 15 is provided on the top of the card plate 13, a through hole 16 is provided on the upper surface of the card plate 13, a marking pen 17 is movably inserted in the through hole 16, and a fastening bolt 18 for fixing the marking pen 17 is provided on one side end surface of the card plate 13.

[0031] Working principle: When it is necessary to mark the length of some detected objects, first place the four pulleys 14 installed at the bottom of the card plate 13 into the slide rails 5 opened at both ends of the first connecting plate 1 or the second connecting plate 3, so that the pulleys 14 can drive the card plate 13 to move back and forth on the first connecting plate 1 or the second connecting plate 3, so as to better mark the length of the detected object in real time, and then the adjustment block 15 set at the top of the card plate 13 can be rotated to move it downward, so as to better make the card plate 13 snap onto the first connecting plate 1, and then insert the marking pen 17 into the card plate. The through hole 16 opened on the plate 13, and then when the marking pen 17 is inserted into the through hole 16 in the card plate 13, the fastening bolt 18 is rotated so that the fastening bolt 18 can produce a certain extrusion force on the marking pen 17, thereby fixing the marking pen 17 to the through hole 16 to facilitate fixing some marking pens 17 of different sizes, and also facilitate the replacement of the marking pen 17. Then, because the slide rails 5 are opened at both ends of the first connecting plate 1 and the second connecting plate 3, the card plate 13 can better drive the pulley 14 to engage between the first connecting plate 1 and the second connecting plate 3, which effectively improves the practicality.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A length detection device for metrology detection, comprising a first connecting plate (1), characterized in that: A rotating shaft (2) is provided at the bottom of the first connecting plate (1), and a second connecting plate (3) is connected inside the rotating shaft (2). Scale lines (4) are provided on the upper surfaces of the first connecting plate (1) and the second connecting plate (3). Slide rails (5) are provided on both side end surfaces of the first connecting plate (1) and the second connecting plate (3). Positioning holes (6) are provided on the outer end surfaces of the first connecting plate (1) and the second connecting plate (3). Winding rollers (7) are provided inside the first connecting plate (1) and the second connecting plate (3) near the bottom.

2. A length detection device for measurement and detection according to claim 1, characterized in that: Both ends of the winding roller (7) are provided with baffles (8) for preventing limitation, a knob (9) is fixedly mounted on the outer end surface of the winding roller (7), an anti-sliding block is provided on the knob (9), a ruler (10) is wound inside the winding roller (7), a scale line (4) is also provided on the upper surface of the ruler (10), and a limit block (11) is provided at the front end of the ruler (10).

3. A length detection device for measurement and detection according to claim 2, characterized in that: The material used for the ruler tape (10) is polyvinyl chloride, also known as PVC.

4. A length detection device for measurement and detection according to claim 1, characterized in that: The first connecting plate (1) and the second connecting plate (3) are provided with positioning holes (6) on their outer end surfaces, each of which is connected to a positioning block (12).

5. A length detection device for measurement and detection according to claim 1, characterized in that: A card plate (13) is clamped on the first connecting plate (1), and four pulleys (14) are arranged at the bottom of the card plate (13). The four pulleys (14) are all clamped in the slide rails (5) provided on the end surfaces of both sides of the first connecting plate (1), and an adjustment block (15) is arranged at the top of the card plate (13).

6. A length detection device for measurement and detection according to claim 5, characterized in that: A through hole (16) is provided on the upper surface of the card plate (13), a marking pen (17) is movably inserted into the through hole (16), and a fastening bolt (18) for fixing the marking pen (17) is provided on one end surface of the card plate (13).

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