CN220541881U - Measuring tape metering and calibrating device - Google Patents

Abstract

The utility model provides a measuring tape metering and calibrating device. The measuring tape metering and calibrating device comprises a calibrating groove, a measuring tape frame, a supporting rod, a pressing frame and a clamping groove, wherein the calibrating groove is a linear groove with an opening at the top and penetrating through the two ends, the measuring tape frame, the supporting rod and the clamping groove are sequentially arranged in the calibrating groove, one group or multiple groups of pressing frames are arranged at the top of one side, the supporting rod is two long straight round rods which are arranged in parallel, the pressing frames comprise a frame body, pressing rods, a counterweight and an axle seat, the axle seat is arranged at the top of one side of the calibrating groove, the pressing rods are arranged at one end, close to the calibrating groove, of the frame body, the counterweight is arranged at the other end of the calibrating groove, and the middle part of the pressing frames is arranged on the axle seat. The measuring tape metering verification device solves the problems of inaccurate verification results and complicated operation of the existing measuring tape verification device.

Description

Measuring tape metering and calibrating device

Technical Field

The utility model relates to the field of metrological verification, in particular to a measuring tape metrological verification device.

Background

The measuring verification of the measuring tape is usually to pull out the measuring tape, and compare the marked scale with the standard scale on the verification device to judge whether the measuring tape is qualified. However, after the tape is pulled out for a longer length, the tape is easy to deform such as torsion and buckling, so that inaccurate comparison is caused, and the accuracy of the verification result is affected. The prior calibrating device has the consideration of limiting the measuring tape, but the prior commonly used limiting device is mainly used for directly pressing the measuring tape, and can also cause the deformation of the measuring tape, and is mainly a portal frame, which can cause obstruction to the pulling-out of the measuring tape, thereby causing complex operation during the calibration.

Disclosure of Invention

In order to solve the problems of inaccurate verification results and complicated operation of the conventional measuring tape verification device, the utility model provides the measuring tape metering verification device for solving the problems.

The utility model provides a tape measure metering verification device, includes examination groove, tape measure frame, bracing piece, compresses tightly frame and draw-in groove, examination groove is open-top, the straight line recess that both ends run through, be equipped with in the examination groove in proper order the tape measure frame the bracing piece with the draw-in groove is equipped with one or more group at the top of one side the compress tightly the frame, the bracing piece is two long straight round bars of parallel arrangement, the compress tightly the frame and include support body, compress tightly pole, counter weight and axle bed, the axle bed is located the top of examination groove one side, the support body is close to the one end of examination groove is equipped with the compress tightly the pole, and the other end is equipped with the counter weight, and the middle part is located the axle bed.

In a preferred embodiment of the measuring tape metering and calibrating device provided by the utility model, the measuring tape frame comprises upright posts, movable plates, top plates and clamping seats, wherein a plurality of upright posts are vertically arranged at one end in the calibrating groove, the movable plates are sleeved on all the upright posts and can slide up and down along the upright posts, the top plates are fixed at the top ends of all the upright posts, a section of each upright post between the movable plates and the top plates is sleeved with a spring, and the positions, close to the calibrating groove, of the movable plates and the positions, close to the movable plates, in the calibrating groove are respectively provided with the clamping seats.

In a preferred embodiment of the measuring tape metering and calibrating device provided by the utility model, the supporting rods are arranged in the calibrating groove in an overhead manner through the support, the length direction of the supporting rods is parallel to the length direction of the calibrating groove, and the interval between the two supporting rods is smaller than the width of the measuring tape. The axial direction of the shaft seat is parallel to the support rods, the pressing rods are parallel to the support rods, and the pressing rods can move to the position right above the two support rods.

In a preferred embodiment of the measuring tape metering verification device provided by the utility model, the top of the verification groove and two sides of the shaft seat are provided with pits for accommodating the frame body.

Compared with the prior art, the measuring tape metering and calibrating device provided by the utility model adopts the side-turning type pressing frame, and can be turned open to the side surface when the measuring tape is not required to be pressed, so that the measuring tape is far away from the calibrating groove, the pulling-out or the retraction of the measuring tape in the calibrating groove is not influenced, and the efficiency of the calibrating operation is not influenced. The structure of the supporting rod matched with the pressing rod is also arranged, so that the structure of the measuring tape can be fully adapted to an arc shape, the measuring tape can be fully flattened, and the accuracy of the verification result is ensured.

Drawings

FIG. 1 is a front view of a tape measure calibration device;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is fig. 2 after the pressing frame has been rotated.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.

Referring to fig. 1 to 3, a front view of a measuring tape metering calibration device 1 and a cross-sectional view thereof in two states are shown.

The measuring tape metering and detecting device 1 comprises a detecting groove 2, a measuring tape frame 3, a supporting rod 4, a pressing frame 5 and a clamping groove 6. The verification groove 2 is a linear groove with an opening at the top and penetrating through the two ends, the bottom in the groove is flat, the inner wall is vertical, and a cuboid cavity is formed.

The tape measure frame 3 comprises four posts 31, a movable plate 32, a top plate 33, two clamping seats 34 and four springs. The four upright posts 31 are vertically arranged in the verification groove 2 at the position close to the left end in a rectangular array, and a clamping seat 34 is arranged at the bottom in the verification groove 2 and at the position between the four upright posts 31. The movable plate 32 is a square flat plate with through holes at four corners, and the four through holes are opposite to the four upright posts 31, so that the movable plate 32 can be sleeved on all the upright posts 31 in a vertically sliding manner.

At the bottom of the movable plate 32, another clamping seat 34 is provided. The two holders 34 are provided with a groove on one side of the holder which is adjacent to each other and which can engage the upper and lower edges of the tape measure. A top plate 33 is fixed to the top ends of all the columns 31. The portions of the upright posts 31 on the movable plate 32 are respectively sleeved with a spring, and the springs are simultaneously connected with the movable plate 32 and the top plate 33.

Two support rods 4 are laid in the verification groove 2 in the area which is positioned on the right side of the tape measure frame 3 and occupies most of the space. The supporting rods 4 are long straight round rods, the length direction of the supporting rods is parallel to the length direction of the verification groove 2, and the two supporting rods 4 are symmetrically arranged by taking the central line of the verification groove 2 as the center. The spacing between the two support bars 4 is two thirds of the width of the tape measure.

The bottom of the supporting rod 4 is provided with a bracket which is arranged in an overhead manner. The overhead height is determined according to the height of the clamping seat 34 and the model of the tape, so that the tape can be flatly paved on the two support rods 4 after being pulled out when clamped on the clamping seat 34.

The rightmost end in the verification groove 2 is provided with a clamping groove 6 for clamping the head end of the tape measure.

The compression frame 5 comprises a frame body 51, a compression rod 52, a counterweight 53 and a shaft seat 54. With reference to fig. 2 and 3, the axle seat 54 is disposed at the top of the right side of the verification tank 2. And a chamfer is provided at the positions of both sides of the shaft seat 54 to form two recesses for accommodating the frame body 51.

The frame body 4 is an I-shaped frame, a rotating shaft in the middle part is arranged in the shaft seat 54, so that the frame body can rotate left and right on the shaft seat 54, a pressing rod 52 is arranged at the left end, and a counterweight 53 is arranged at the right end. The hold-down bar 52 and the counterweight 53 are long straight round bars of uniform structure, both of which are parallel to the support bar 4. As the frame body 4 rotates leftward, the pressing rod 52 moves to a position right above between the two support rods 4; turning to the right, the hold-down bar 52 is raised away from the assay well 2.

In fig. 1, only one holding-down rack 5 is shown, which can be extended as the case may be, or a plurality of holding-down racks 5 can be provided to ensure that the tape measure can be held down.

In use, the flap 32 is pulled upwardly to place the tape in the lower one of the cartridges 34 with the open end facing to the right and the marked face facing up. The flap 32 is then released and allowed to move downwardly under the action of the spring, with the other holder 34 abutting the top of the tape measure. The upper and lower edges of the tape measure are clamped by the two clamping seats 34 to achieve fixation.

The tape is pulled out of the housing to the clamping groove 6, the head end of the tape is clamped into the clamping groove, and the bottom of the tape is just put on the two support rods 4. The hold-down bracket 5 is then moved to the left to press the hold-down bar 52 against the tape measure to engage the support bar 4 to flatten the tape measure.

After verification, the hold-down rack 5 is moved to the right, the head end of the tape is pulled out of the clamping groove 6, and finally the tape is retracted into the shell.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.

Claims (5)

1. A tape measure metering verification device, characterized in that: including examination groove, tape measure frame, bracing piece, hold-down rack and draw-in groove, examination groove is open-top, the straight line recess that both ends run through, be equipped with in the examination inslot in proper order the tape measure frame the bracing piece with the draw-in groove is equipped with one set of or multiunit at the top of one side the hold-down rack, the bracing piece is two long straight round bars of parallel arrangement, the hold-down rack includes support body, hold-down bar, counter weight and axle bed, the axle bed is located the top of examination groove one side, the support body is close to the one end of examination groove is equipped with the hold-down bar, the other end is equipped with the counter weight, and the middle part is located the axle bed.

2. The tape measure verification device of claim 1, wherein: the measuring tape frame comprises vertical rods, movable plates, top plates and clamping seats, wherein a plurality of vertical rods are vertically arranged at one end in the verification groove, the movable plates are sleeved on all the vertical rods and can slide up and down along the vertical rods, the top plates are fixed on all the top ends of the vertical rods, springs are sleeved on one section of each vertical rod between each movable plate and each top plate, and the movable plates are close to the verification groove and are close to the movable plates and are respectively provided with the clamping seats.

3. The tape measure verification device of claim 1, wherein: the support rods are arranged in the verification groove in an overhead mode through the support, the length direction of the support rods is parallel to the length direction of the verification groove, and the interval between the two support rods is smaller than the width of the measuring tape.

4. A tape measure verification device according to claim 3, wherein: the axial direction of the shaft seat is parallel to the support rods, the pressing rods are parallel to the support rods, and the pressing rods can move to the position right above the two support rods.

5. The tape measure verification device of claim 4, wherein: and pits for accommodating the frame body are arranged at the top of the verification groove and at the two sides of the shaft seat.