CN216523481U - Steel tape verification platform - Google Patents

Abstract

The utility model discloses a steel tape verification platform, which comprises a detection platform, a clamping mechanism arranged at one end of the detection platform and a sliding block arranged on the detection platform, wherein the clamping mechanism comprises a first clamping mechanism and a second clamping mechanism; the end part of the supporting rod is of an upward convex structure, and the end part of the supporting rod is arranged at the front end of a measuring head of the dial indicator; when the end part of the supporting rod is pushed, the microscope moves backwards, the end part of the supporting rod abuts against a measuring head of the dial indicator, the measuring head of the dial indicator is linked with a measuring rod of the dial indicator to move backwards, and a moving numerical value is displayed on a dial plate of the dial indicator.

Description

Steel tape test stand

technical field

The utility model relates to the technology in the field of a steel tape measure verification table, in particular to a steel tape measure verification table.

Background technique

According to the "Administrative Measures for the Verification of Work Measuring Instruments Compulsory Verification of the People's Republic of China" issued by the State Council on December 25, 2018, the ruler is one of the compulsory verification work measuring instruments in the catalogue of the work measuring instruments that are subject to compulsory verification of the People's Republic of China. For steel tapes of different structures, JJG4-2015 "Verification Regulations for Steel Tapes" provides different verification standards.

At present, most of the steel tape measures on the market are tilted on both sides. When performing verification, the two sides of the steel tape measure and the verification table form a height difference, which is prone to reading errors. In addition, when the steel tape test equipment on the market performs the indication error test on the steel tape, the deviation value of each inspected point is usually estimated by direct visual inspection through the reading microscope, which is easy to produce reading errors on the deviation value.

Therefore, it is necessary to study a new technical solution to solve the above problems.

Utility model content

In view of this, the main purpose of the present invention is to provide a steel tape measure verification platform, which is provided with a dial indicator and a microscope on the slider, and a fixing mechanism is arranged on the slider to connect the The sleeve of the sub-meter, the support rod of the microscope is arranged at the lower end of the fixing mechanism, the end of the support rod is an upwardly protruding structure, and the end of the support rod is set at the front end of the measuring head of the dial indicator to realize the connection between the support rod and the dial indicator. The linkage of the measuring head, combined with the moving value of the dial indicator and the microscope to compare the readings, carry out the display error verification, and reduce the reading error of direct visual estimation.

To achieve the above object, the present invention adopts the following technical scheme:

A steel tape measure verification table, comprising a detection table, a clamping mechanism arranged at one end of the detection table, and a sliding block arranged on the detection table, the clamping mechanism includes a first clamping mechanism and a second clamping mechanism, and the clamping mechanism includes a first clamping mechanism and a second clamping mechanism. A dial indicator and a microscope are installed on the slider, a fixing mechanism is arranged on the slider, the sleeve of the dial indicator is connected to the fixing mechanism, and the support rod of the microscope is arranged at the lower end of the fixing mechanism; the The end of the strut is an upwardly protruding structure, and the end of the strut is arranged at the front end of the measuring head of the dial indicator;

When the end of the support rod is pushed, the microscope moves backward, the end of the support rod moves backward, the end of the support rod touches the measuring head of the dial indicator, and the measuring head of the dial indicator moves backwards in conjunction with the measuring rod of the dial indicator. The dial of the dial indicator shows the moving value.

As a preferred solution, the detection table includes a slide rail and rollers arranged at intervals on the slide rail.

As a preferred solution, a plurality of support seats are arranged at intervals at the lower end of the detection table, and the plurality of support seats are arranged at the same height.

As a preferred solution, the upper ends of the first clamping mechanism and the second clamping mechanism are provided with a first screw rod and a movable block for clamping and adjusting the first steel tape measure and the second steel tape measure; the The rear ends of the first clamping mechanism and the second clamping mechanism are also provided with a second screw rod, which is used for front/rear adjustment of the first steel tape measure and the second steel tape measure; the first clamping mechanism, the second steel tape measure The outer side of the clamping mechanism is also provided with a third screw rod for left/right adjustment of the first steel tape measure and the second steel tape measure.

As a preferred solution, the microscope and the dial indicator are placed vertically on the slider respectively; the fixing mechanism includes a first fixing rod laterally arranged on the slider, and the first fixing rod is connected to the dial indicator the sleeve;

Two sides of the lower end of the first fixed rod are respectively provided with a second fixed rod and a third fixed rod, and the second fixed rod and the third fixed rod are vertically arranged on the slider, and the second fixed rod , the third fixed rod and the upper end face of the slider form a groove; the support rod of the microscope is installed in the groove;

And, the end of the support rod protrudes upward to form a linkage block; the linkage block is arranged at the front end of the measuring head of the dial indicator; the measuring head of the dial indicator is arranged at the front end of the first fixing rod; the The slider is also provided with a limit block at the front end of the linkage block, the limit block is threadedly sleeved on the screw rod, and the end of the screw rod is connected to the linkage block.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, it is mainly that a dial indicator and a microscope are installed on the slider, and a fixing mechanism is installed on the slider. With the sleeve connected to the dial indicator, the support rod of the microscope is arranged at the lower end of the fixing mechanism, the end of the support rod is an upwardly protruding structure, and the end of the support rod is set at the front end of the measuring head of the dial indicator, so that the support rod can be connected with the dial indicator. The linkage of the measuring head of the dial indicator, combined with the moving value of the dial indicator, compares the readings with the microscope, and checks the indication error to reduce the reading error of direct visual estimation.

Secondly, the steel tape test stand is provided with a clamping mechanism, the first steel tape and the second steel tape are clamped and adjusted by the first screw rod, and the second screw and the third screw are respectively used for the first steel tape and the second steel tape. The left/right and front/rear directions are adjusted and positioned to ensure that the first steel tape measure and the second steel tape measure are placed in parallel on the steel tape measure verification table to reduce the verification error. The structure is simple and the operation is convenient.

In order to illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Description of drawings

1 is a perspective view of an embodiment of the present utility model;

2 is a perspective view of the clamping mechanism of the embodiment of the present invention;

3 is another perspective view (partially exploded state) of the clamping mechanism according to the embodiment of the present invention;

4 is a perspective view of a slider of an embodiment of the present invention;

5 is another perspective view (partially exploded state) of the slider according to the embodiment of the present invention.

Description of drawings:

10. Testing table 11. Slide rail

12. Roller 13. Support seat

20. Clamping mechanism 20a, the first clamping mechanism

20b, the second clamping mechanism 21, the first screw

22. Active block 23. Second screw

24. The third screw 201. Clamping seat

202, positioning column 203, the first base

204, front and rear direction guide rails 205, second base

206. Left and right guide rails 30. Slider

31. The first fixing rod 32. The second fixing rod

33. The third fixed rod 34. Limit block

35, screw 40, dial indicator

41. Dial 42. Sleeve

43. Measuring rod 44. Measuring head

50. Microscope 51. Pole

52. Linkage block.

Detailed ways

The working principle of the dial indicator is that the movement of the side rod caused by the measured size is amplified by transmission mechanisms such as gears, racks, levers, etc., and becomes the rotation of the pointer on the dial, thereby reading the size of the measured size. The utility model specifically adopts the working principle of a dial indicator, and uses a microscope to check the indication error between the non-continuous scales of the standard steel tape measure and the steel tape measure to be tested.

In the description of the present utility model, it should be noted that, for orientation words, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate orientation and positional relationship as Based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as The specific protection scope of the present invention is limited.

Please refer to FIG. 1 to FIG. 5 , which show the specific structure of the embodiment of the present invention.

A steel tape test stand, comprising a test stand 10, a clamping mechanism 20 disposed at one end of the test stand 10, and a slider 30 disposed on the test stand 10, the clamping mechanism 20 clamping a first steel tape measure, a second steel tape measure Second steel tape measure, the first steel tape measure and the second steel tape measure are respectively standard steel tape measure and steel tape measure to be tested; wherein, the slider 30 is provided with a dial indicator 40 and a microscope 50, and the slider 30 is provided with a dial indicator 40 and a microscope 50. A fixing mechanism is provided, the sleeve 42 of the dial indicator 40 is connected to the fixing mechanism, and the support rod 51 of the microscope 50 is arranged at the lower end of the fixing mechanism; the end of the support rod 51 is an upwardly protruding structure, and , the end of the support rod 51 is arranged at the front end of the measuring head 44 of the dial indicator 40;

When the end of the support rod 51 is pushed, the microscope 50 moves backward, the end of the support rod 51 moves backward, and the end of the support rod 51 touches the measuring head 44 of the dial indicator 40, and the measuring head 44 of the dial indicator 40 is linked to the dial indicator 40. The measuring rod 43 of the watch 40 moves backward, and the movement value is displayed on the dial 41 of the dial indicator 40 .

As shown in FIG. 1 , it shows a three-dimensional view of the present invention. In this embodiment, the detection table 10 includes a slide rail 11 and rollers 12 are provided on the slide rail 11 at intervals. The aforementioned first steel tape measure and second steel tape measure are respectively installed on both sides of the slide rail 11, and the first steel tape measure and the second steel tape measure are installed on the upper end of the roller 12, so that the first steel tape measure and the second steel tape measure can be easily adjusted. The movement adjustment is performed on the inspection table 10 . Preferably, a plurality of support bases 13 are arranged at intervals at the lower end of the detection table 10 , and the plurality of support bases 13 are arranged at the same height. One end of the first steel tape measure and the second steel tape measure is clamped and fixed by the clamping mechanism 20, and the other ends of the first steel tape measure and the second steel tape measure are naturally hanged down under the action of gravity, so that: the first steel tape measure . One end of the second steel tape measure is placed on the testing table 10 in a parallel manner. Preferably, the length of the detection table 10 is set to be more than 3 meters.

As shown in FIG. 2 and FIG. 3 , it shows a perspective view of the clamping mechanism of the present invention, and a perspective view of a partially exploded state of the clamping mechanism. In this embodiment, the clamping mechanism 20 is disposed at the rear end of the detection table 10 . The clamping mechanism 20 includes a first clamping mechanism 20a and a second clamping mechanism 20b for clamping and fixing the first steel tape measure and the second steel tape measure respectively. The upper end of the clamping mechanism 20 is respectively provided with a first screw 21 and a movable block 22 to clamp and adjust the first steel tape measure and the second steel tape measure, and the first screw 21 passes downward through the first through hole on the movable block 22. , the lower end of the first screw 21 is threadedly connected to the inner threaded hole of the clamping seat 201, and the movable block 22 has a positioning post 202 which is protruded toward the position; 202 is displaced toward the clamping seat 201 ; when the first screw rod 21 is rotated in the opposite direction, the movable block 22 rises with the first screw rod 21 , and the positioning post 202 moves upward away from the clamping seat 201 . Specifically, in the first clamping mechanism 20a, the head end of the first steel tape measure is installed in the first clamping mechanism 20a, and the ruler hook of the first steel tape measure is clamped at the front end of the movable block 22, The first steel tape measure is clamped and adjusted on the first clamping mechanism 20a by the first screw 21; correspondingly, in the second clamping mechanism 20b, the head end of the second steel tape measure is mounted on the second clamp In the holding mechanism 20b, the ruler hook of the second steel tape measure is clamped at the front end of the movable block 22, and the second steel tape measure is clamped and adjusted on the second clamping mechanism 20b by the first screw 21.

In addition, the rear end of the clamping mechanism 20 is also provided with a second screw 23 to adjust the front/rear positions of the first steel tape measure and the second steel tape measure to ensure that the initial scale of the first steel tape measure and the second steel tape measure is up and down Align. By rotating the second screw 23, the first clamping mechanism 20a and the second clamping mechanism 20b are respectively controlled to move forward/backward, and then the first steel tape measure and the second steel tape measure are controlled and adjusted to move forward/backward respectively, so as to ensure the first The initial scales of the steel tape measure and the second steel tape measure are aligned back and forth. The second screw 23 horizontally passes through the second through hole on the first base 203 , the second screw 23 is threadedly connected to the inner threaded hole of the clamping seat 201 , and the first base 203 is provided with a front-rear direction guide rail 204, the clamping seat 201 is slidably arranged along the guide rail 204 in the front-rear direction. When the second screw 23 is rotated in the forward direction, the clamping base 201 translates forward; when the second screw 23 is rotated in the reverse direction, the clamping base 201 translates backward. The outer side of the clamping mechanism 20 is also provided with a third screw 24, the third screw 24 is arranged transversely through the clamping mechanism 20, and controls and adjusts the left/right of the first clamping mechanism 20a and the second clamping mechanism 20b. position, so as to ensure that the first steel tape measure and the second steel tape measure are placed side by side and parallel along the length extension direction of the inspection table 10 . The third screw 24 horizontally passes through the third through hole on the second base 205 , the third screw 24 is screwed into the inner threaded hole of the first base 203 , and the second base 205 is provided with a left-right direction The guide rails 206 and the first base 203 are slidably arranged along the left and right directions of the guide rails 206 . When the third screw 24 is rotated forward, the first base 203 translates to the left; when the third screw 24 is reversely rotated, the first base 203 translates to the right.

Usually, rotating handles are provided at the rotating operation ends of the first screw 21 , the second screw 23 and the third screw 24 to facilitate the adjustment operation.

As shown in FIG. 4 and FIG. 5 , a perspective view of the slider of the present invention and a perspective view of a partially exploded state of the slider 30 are respectively shown. In this embodiment, the slider 30 is provided with a vertically placed dial indicator 40 and a vertically placed microscope 50 . The sliding block 30 is provided with a fixing mechanism, and the fixing mechanism includes a first fixing rod 31 laterally arranged on the sliding block 30, and the first fixing rod 31 is connected to the sleeve 42 of the dial indicator 40, so that: The dial indicator 40 is vertically fixed on the slider 30 . Two sides of the lower end of the first fixing rod 31 are respectively provided with a second fixing rod 32 and a third fixing rod 33, and the second fixing rod 32 and the third fixing rod 33 are vertically arranged on the slider 30, The second fixing rod 32 , the third fixing rod 33 and the upper end surface of the sliding block 30 form grooves. The support rod 51 of the microscope 50 is installed in the groove; and the end of the support rod 51 protrudes upward to form a linkage block 52; the linkage block 52 is arranged on the front end of the measuring head 44 of the dial indicator 40 ; The measuring head 44 is arranged at the front end of the first fixed rod 31 . The slider 30 is further provided with a limit block 34 at the front end of the linkage block 52 , the limit block 34 is threadedly sleeved on the screw rod 35 , and the end of the screw rod 35 is connected to the end of the support rod 51 .

Specifically, the end of the screw rod 35 is connected to the linkage block 52 . When the screw rod 35 rotates, the screw rod 35 drives the linkage block 52 to move backward, the linkage block 52 touches the measuring head 44 of the dial indicator 40, and the measuring head 44 of the dial indicator 40 is linked with the measuring rod 43 of the dial indicator 40. After moving, the movement value is displayed on the dial 41 of the dial indicator 40, and the movement value is obtained through the dial indicator 40; then, the corresponding scales of the first steel tape measure and the second steel tape measure are read through the microscope 50, and the The deviation value of the steel tape measure and the second steel tape measure is visually evaluated.

The key point of the design of the utility model lies in that the steel tape measuring platform is provided with a dial indicator and a microscope on the slider, a fixing mechanism is arranged on the slider to connect the sleeve of the dial indicator, and the support rod of the microscope is arranged on the fixing mechanism At the lower end, the end of the strut is an upwardly protruding structure, and the end of the strut is arranged at the front end of the measuring head of the dial indicator to realize the linkage between the strut and the measuring head of the dial indicator. The microscope conducts reading comparison and display error verification to reduce the reading error of direct visual estimation.

Secondly, the steel tape test stand is provided with a clamping mechanism, the first steel tape and the second steel tape are clamped and adjusted by the first screw rod, and the second screw and the third screw are respectively used for the first steel tape and the second steel tape. The left/right and front/rear directions are adjusted and positioned to ensure that the first steel tape measure and the second steel tape measure are placed in parallel on the steel tape measure verification table to reduce the verification error. The structure is simple and the operation is convenient.

Claims (5)

1. The utility model provides a steel tape examination platform, is including examining test table, setting up in the fixture who examines test table one end and setting up in the slider on examining test table, fixture includes first fixture, second fixture, its characterized in that: the slide block is provided with a dial indicator and a microscope, the slide block is provided with a fixing mechanism, a sleeve of the dial indicator is connected with the fixing mechanism, and a support rod of the microscope is arranged at the lower end of the fixing mechanism; the end part of the supporting rod is of an upward convex structure, and the end part of the supporting rod is arranged at the front end of a measuring head of the dial indicator;

when the end part of the supporting rod is pushed, the microscope moves backwards, the end part of the supporting rod abuts against a measuring head of the dial indicator, the measuring head of the dial indicator is linked with a measuring rod of the dial indicator to move backwards, and a moving numerical value is displayed on a dial plate of the dial indicator.

2. A steel tape certification stand according to claim 1, wherein: the detection table comprises a slide rail and rollers arranged on the slide rail at intervals.

3. A steel tape certification stand according to claim 1 wherein: the interval type of the lower end of the detection table is provided with a plurality of supporting seats, and the supporting seats are arranged at the same height.

4. A steel tape certification stand according to claim 1, wherein: the upper ends of the first clamping mechanism and the second clamping mechanism are respectively provided with a first screw and a movable block so as to be used for clamping and adjusting the first steel tape and the second steel tape; the rear ends of the first clamping mechanism and the second clamping mechanism are respectively provided with a second screw rod for adjusting the first steel tape and the second steel tape forwards/backwards; and third screw rods are arranged on the outer sides of the first clamping mechanism and the second clamping mechanism respectively and used for carrying out left/right adjustment on the first steel tape and the second steel tape.

5. A steel tape certification stand according to claim 1, wherein: the microscope and the dial indicator are respectively vertically placed on the sliding block; the fixing mechanism comprises a first fixing rod transversely arranged on the sliding block, and the first fixing rod is connected to the sleeve of the dial indicator;

a second fixing rod and a third fixing rod are respectively arranged on two sides of the lower end of the first fixing rod, the second fixing rod and the third fixing rod are vertically arranged on the sliding block, and grooves are formed in the upper end surfaces of the second fixing rod, the third fixing rod and the sliding block; the supporting rod of the microscope is arranged in the groove;

the end part of the support rod protrudes upwards to form a linkage block; the linkage block is arranged at the front end of a measuring head of the dial indicator; the measuring head of the dial indicator is arranged at the front end of the first fixing rod; the slider still is provided with the stopper in the front end of linkage piece, the stopper screw thread cup joints in the lead screw, and, the tip of lead screw is connected in linkage piece.

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