Portable auxiliary corrector for measuring centering rod

Abstract

The utility model provides a portable auxiliary corrector for measuring a centering rod, which comprises an elastic adjusting plate, a positioning plate and a connecting device, the elastic adjusting plate and the positioning plate are arranged from top to bottom, one side of the connecting device is connected with the elastic adjusting plate and the positioning plate, the elastic adjusting plate is provided with an elastic adjusting hole, the positioning plate is provided with a positioning hole, and the connecting device is connected with the elastic adjusting plate and the positioning plate. The connecting line of the center of the elastic adjusting hole and the center of the positioning hole is perpendicular to the positioning plate. The connecting device comprises a connecting plate and a clamping mechanism arranged on the connecting plate, connecting blocks are arranged on one side of the bottom of the elastic adjusting plate and one side of the top of the positioning plate, and the connecting blocks are detachably connected with the clamping mechanism. The auxiliary corrector has the advantages that the elastic adjusting plate with the connecting block and the positioning plate are matched with the connecting plate with the connecting device, the auxiliary corrector can be disassembled and folded, and the technical problem that an existing auxiliary corrector is large in size and not suitable for being carried is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring equipment technical field especially relates to a portable auxiliary corrector for measuring centering rod. BACKGROUND

[0002] The centering rod is a kind of auxiliary tool commonly used in measurement and positioning operation, and is widely applied in surveying and mapping, construction engineering, geological exploration, traffic engineering and other fields. Its main function is to ensure the quick and accurate alignment between instrument and survey point in the measurement process, to improve the accuracy and reliability of measurement.

[0003] But in the long use process, it will appear inaccurate measurement, at this moment, it needs to be calibrated, and the current conventional calibration mode has:

[0004] 1, the inaccurate centering rod is measured on the accurate structure, and then adjusted according to the measurement condition.

[0005] 2, using auxiliary corrector to correct.

[0006] The above first mode is more difficult to realize, because the centering rod is difficult to have accurate structure around for calibration in the use process, so the second auxiliary corrector appears, but the current conventional auxiliary corrector is usually long strip box structure, that is, the volume is larger, so it is not suitable for carrying. INVENTION CONTENTS

[0007] In view of the deficiencies in the prior art, the utility model provides a portable auxiliary corrector for measuring centering rod, which solves the technical problem that the existing auxiliary corrector is large in volume and not suitable for carrying.

[0008] According to the portable auxiliary corrector for measuring centering rod disclosed by the embodiment of the utility model, the elastic adjusting plate and the positioning plate are arranged from top to bottom, and the connecting device is connected to the elastic adjusting plate and the positioning plate on one side, the elastic adjusting plate is provided with an elastic adjusting hole, the positioning plate is provided with a positioning hole, and the center line of the elastic adjusting hole and the positioning hole is perpendicular to the positioning plate.

[0009] The connecting device includes a connecting plate and a clamping mechanism arranged on the connecting plate, one side of the bottom of the elastic adjusting plate and one side of the top of the positioning plate are provided with connecting blocks, and the connecting blocks are detachably connected with the clamping mechanism.

[0010] The technical principle of the utility model is that the connecting plate and the connecting device are one structure when carrying, the elastic adjusting plate and the positioning plate are two separate structures respectively, that is, three plate structures after disassembly, which is convenient to carry.

[0011] When needed, the elastic adjusting plate and the positioning plate are connected through the connecting device, and then the auxiliary corrector is formed for detecting the centering rod.

[0012] Compared with the prior art, the utility model has the advantages that the elastic adjusting plate with the connecting block is matched with the connecting plate with the connecting device, the auxiliary corrector is folded and disassembled, and the technical problem that the existing auxiliary corrector is too large to be carried is solved.

[0013] Further, the clamping mechanism comprises a U-shaped plate and a screw mechanism arranged inside the U-shaped plate, the U-shaped plate is fixed on the connecting plate, one side of the U-shaped plate is open towards the connecting plate, two connecting blocks of the elastic adjusting plate and the positioning plate are symmetrically arranged, the two connecting blocks of the elastic adjusting plate are clamped on the two sides of the top of the U-shaped plate, the two connecting blocks of the positioning plate are clamped on the two sides of the bottom of the U-shaped plate, and the four connecting blocks are connected with the screw mechanism.

[0014] Further, the screw mechanism comprises a threaded rod and two movable rods arranged on the threaded rod, the two movable rods are parallel to the length direction of the U-shaped plate, the threaded rod passes through the middle of the U-shaped plate, and one end of the threaded rod passes out of the U-shaped plate and is provided with a rotating part;

[0015] The two sides of the top and the two sides of the bottom of the U-shaped plate are provided with through holes, the four connecting blocks are provided with clamping holes corresponding to the through holes, the top and the bottom of the two movable rods are provided with clamping shafts aligned with the through holes, and the clamping shafts can pass through the through holes and be clamped into the clamping holes.

[0016] Further, the operator can drive the threaded rod to rotate through the rotating part, so that the clamping shafts are clamped into or separated from the clamping holes, and the connecting plate and the elastic adjusting plate and the positioning plate are quickly disassembled and assembled.

[0017] Further, the elastic adjusting hole is provided with an elastic adjuster, the elastic adjuster is provided with a through hole in the center, the through hole is uniformly provided with elastic brushes, and the distance from the top of all the elastic brushes to the center of the elastic adjusting hole is the same.

[0018] The elastic brushes in the elastic adjuster naturally make the centering rod be in the center position of the through hole.

[0019] Further, the hole wall of the positioning hole is conical.

[0020] The positioning hole can stably position the centering rod of any diameter.

[0021] Further, the bottom of the elastic adjuster is provided with a fixer.

[0022] Furthermore, the fixing device includes a fixing ring and positioning screws evenly distributed around the fixing ring. The fixing ring is fixed to the bottom of the elastic adjuster. The fixing ring has screw holes evenly distributed around the fixing ring, and each positioning screw corresponds to one screw hole for fixing.

[0023] Furthermore, the inner circumferential side of the fixing ring is evenly distributed with arc-shaped blocks, each of which is connected to a fixing screw. The bottom of the arc-shaped block is provided with a flange, which is in close contact with the bottom end face of the fixing ring. The outer side of the arc-shaped block is provided with a round hole, and the top of the positioning screw is provided with a cylinder. A bearing is provided between the cylinder and the round hole.

[0024] By having the curved surface of the arc-shaped block fit against the centering rod, and directly fitting against the end face of the positioning screw, the verticality of the centering rod can be made more accurate.

[0025] Furthermore, a scale device is provided on the top of the elastic adjustment plate corresponding to the elastic adjustment hole.

[0026] Furthermore, the scale device includes a scale ring and a movable scale bar circumferentially disposed on the scale ring. The scale ring has a movable hole in the middle, the movable scale bar is inserted into the movable hole, and the movable scale bar has a scale value.

[0027] The centering rod is centered on the elastic adjustment hole by using the scale value. The elastic brush may fail after prolonged use, and the centering rod may no longer be centered. In this case, the fixing device can be adjusted by using the scale value to make the centering rod return to the center position. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the portable auxiliary corrector structure of Embodiment 1 of this utility model.

[0029] Figure 2 This is an exploded view of the portable auxiliary corrector of Embodiment 1 of this utility model.

[0030] Figure 3 This is a schematic diagram of the snap-fit ​​mechanism structure of Embodiment 1 of this utility model.

[0031] Figure 4 This is a schematic diagram of the portable auxiliary corrector structure of Embodiment 2 of this utility model.

[0032] Figure 5 This is a cross-sectional view of the fixing ring in Embodiment 2 of this utility model.

[0033] Figure 6 This is a schematic diagram of the portable auxiliary corrector structure of Embodiment 3 of this utility model.

[0034] Figure 7This is a cross-sectional view of the scale ring in Embodiment 3 of this utility model.

[0035] In the above figures: 1. Elastic adjustment plate; 101. Elastic adjustment hole; 11. Elastic adjuster; 111. Through hole; 112. Elastic brush; 12. Fixer; 121. Fixing ring; 122. Positioning screw; 1221. Cylinder; 13. Arc block; 131. Flanged edge; 132. Round hole; 14. Scale device; 141. Scale ring; 1411. Movable hole; 142. Movable scale bar; 1421. Scale value; 2. Positioning plate; 21. Positioning hole; 22. Connecting block; 221. Snap-fit ​​hole; 3. Connecting device; 31. Connecting plate; 32. U-shaped plate; 321. Through hole; 33. Threaded rod; 331. Threaded section; 332. Rotating part; 34. Movable rod; 341. Snap-fit ​​shaft. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0037] Example 1

[0038] like Figures 1-2 The portable auxiliary calibrator shown for measuring the centering rod includes an elastic adjustment plate 1 and a positioning plate 2 arranged from top to bottom, and a connecting device 3 connecting the elastic adjustment plate 1 and the positioning plate 2 on one side. The elastic adjustment plate 1 is provided with an elastic adjustment hole 101, and the positioning plate 2 is provided with a positioning hole 21 with a conical hole wall. The line connecting the center of the elastic adjustment hole 101 and the positioning hole 21 is perpendicular to the positioning plate 2.

[0039] Specifically, the elastic adjustment hole 101 is equipped with an elastic adjuster 11, and the center of the elastic adjuster 11 is provided with a through hole 111. Elastic brushes 112 are evenly distributed in the through hole 111. The distance from the top of all elastic brushes 112 to the center of the elastic adjustment hole 101 is the same, so that when the centering rod is inserted, the centering rod can be pushed to the center position of the through hole 111.

[0040] like Figures 1-2 As shown, the bottom of the elastic adjuster 11 is provided with a retainer 12. The retainer 12 includes a retaining ring 121 and positioning screws 122 evenly distributed around the retaining ring 121. The retaining ring 121 is fixed to the bottom of the elastic adjuster 11. The retaining ring 121 has screw holes evenly distributed around the retaining ring 121. Each positioning screw 122 corresponds to one screw hole for fixing. When it is necessary to fix the centering rod, the centering rod can be fixed by rotating the three positioning screws 122.

[0041] like Figures 1-3As shown, the connecting device 3 includes a connecting plate 31 and a snap-fit ​​mechanism disposed on the connecting plate 31. The snap-fit ​​mechanism includes a U-shaped plate 32 and a screw mechanism disposed inside the U-shaped plate 32. The U-shaped plate 32 is fixed on the connecting plate 31, and the open side of the U-shaped plate 32 faces the connecting plate 31. Two connecting blocks 22 are symmetrically arranged on the bottom side of the elastic adjustment plate 1 and the top side of the positioning plate 2. The two connecting blocks 22 of the elastic adjustment plate 1 are snapped on the top sides of the U-shaped plate 32, and the two connecting blocks 22 of the positioning plate 2 are snapped on the bottom sides of the U-shaped plate 32. All four connecting blocks 22 are connected to the screw mechanism.

[0042] The specific screw mechanism includes a threaded rod 33 and two movable rods 34 mounted on the threaded rod 33. The rotation of the threaded rod 33 causes the two movable rods 34 to move closer to each other or further away from each other. The threaded rod 33 has two threaded sections 331 with opposite directions corresponding to the two movable rods 34. The two movable rods 34 are parallel to the length direction of the U-shaped plate 32. The threaded rod 33 passes through the middle of the U-shaped plate 32. One end of the threaded rod 33 extends out of the U-shaped plate 32 and has a rotating part 332 for manual rotation.

[0043] The U-shaped plate 32 has through holes 321 on both sides of the top and bottom. The four connecting blocks 22 have snap-fit ​​holes 221 corresponding to the through holes 321. The top and bottom of the two movable rods 34 are aligned with the through holes 321 and have snap-fit ​​shafts 341. The snap-fit ​​shafts 341 can pass through the through holes 321 and snap into the snap-fit ​​holes 221 to achieve detachable snap-fit ​​fixation.

[0044] The usage method is as follows:

[0045] When the centering rod is inserted into the through hole 111, the bottom of the centering rod is then inserted into the positioning hole 21. The fixing screw is then rotated to make it fit tightly against the centering rod. The position of the bubble on the centering rod is then adjusted to ensure the measurement accuracy of the centering rod.

[0046] Example 2

[0047] like Figures 4-5 As shown, the difference between this embodiment and embodiment 1 is that: arc-shaped blocks 13 are evenly distributed on the inner circumference of the fixing ring 121, and each arc-shaped block 13 is connected to a fixing screw. The bottom of the arc-shaped block 13 is provided with a flange 131, which is in close contact with the bottom end face of the fixing ring 121, so that the arc-shaped block 13 can move along the end face of the fixing ring 121.

[0048] The specific arc-shaped block 13 has a circular hole 132 on its outer side, and a cylinder 1221 on the top of the positioning screw 122. A bearing is provided between the cylinder 1221 and the circular hole 132, so that the positioning screw 122 can push the arc-shaped block 13 by rotation, but its rotation will not affect the arc-shaped block 13.

[0049] Example 3

[0050] like Figures 6-7 As shown, the difference between this embodiment and embodiments 1-2 is that: the top of the elastic adjustment plate 1 is provided with a scale device 14 corresponding to the elastic adjustment hole 101. The specific scale device 14 includes a scale ring 141 and a movable scale bar 142 circumferentially arranged on the scale ring 141. The scale ring 141 is provided with a movable hole 1411 in the middle. The movable scale bar 142 is stuck in the movable hole 1411. The movable scale bar 142 is provided with a scale value 1421. The scale value 1421 can be used to determine whether the centering rod is in the center position of the through hole 111.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable auxiliary calibrator for measuring a centering rod, characterized in that: It includes an elastic adjustment plate and a positioning plate arranged from top to bottom, and a connecting device connecting the elastic adjustment plate and the positioning plate on one side. The elastic adjustment plate is provided with an elastic adjustment hole, and the positioning plate is provided with a positioning hole. The line connecting the center of the elastic adjustment hole and the positioning hole is perpendicular to the positioning plate. The connecting device includes a connecting plate and a snap-fit ​​mechanism disposed on the connecting plate. A connecting block is provided on the bottom side of the elastic adjustment plate and the top side of the positioning plate. The connecting block and the snap-fit ​​mechanism are detachably connected.

2. A portable auxiliary calibrator for measuring a centering rod as described in claim 1, characterized in that: The locking mechanism includes a U-shaped plate and a screw mechanism disposed inside the U-shaped plate. The U-shaped plate is fixed on the connecting plate, and the open side of the U-shaped plate faces the connecting plate. Two connecting blocks are symmetrically provided for the elastic adjustment plate and the positioning plate. The two connecting blocks of the elastic adjustment plate are locked on the top two sides of the U-shaped plate, and the two connecting blocks of the positioning plate are locked on the bottom two sides of the U-shaped plate. All four connecting blocks are connected to the screw mechanism.

3. A portable auxiliary calibrator for measuring a centering rod as described in claim 2, characterized in that: The screw mechanism includes a threaded rod and two movable rods disposed on the threaded rod. The two movable rods are parallel to the length direction of the U-shaped plate. The threaded rod passes through the middle of the U-shaped plate, and one end of the threaded rod extends out of the U-shaped plate and is provided with a rotating part. The U-shaped plate has through holes on both sides of the top and bottom. The four connecting blocks have snap-fit ​​holes corresponding to the through holes. The top and bottom of the two movable rods are aligned with the through holes and have snap-fit ​​shafts. The snap-fit ​​shafts can pass through the through holes and snap into the snap-fit ​​holes.

4. A portable auxiliary calibrator for measuring a centering rod as described in claim 1, characterized in that: An elastic adjuster is provided inside the elastic adjustment hole. The elastic adjuster has a through hole at its center. Elastic brushes are evenly distributed inside the through hole, and the distance from the top of all the elastic brushes to the center of the elastic adjustment hole is the same.

5. A portable auxiliary calibrator for measuring a centering rod as described in claim 1 or 4, characterized in that: The wall of the positioning hole is tapered.

6. A portable auxiliary calibrator for measuring a centering rod as described in claim 4, characterized in that: The elastic adjuster has a retainer at its bottom.

7. A portable auxiliary calibrator for measuring a centering rod as described in claim 6, characterized in that: The fastener includes a fixing ring and positioning screws evenly distributed around the fixing ring. The fixing ring is fixed to the bottom of the elastic adjuster. The fixing ring has screw holes evenly distributed around the fixing ring, and each positioning screw corresponds to one screw hole for fixing.

8. A portable auxiliary calibrator for measuring a centering rod as described in claim 7, characterized in that: The inner circumference of the fixing ring is evenly distributed with arc-shaped blocks, each of which is connected to a fixing screw. The bottom of the arc-shaped block is provided with a flange, which is in close contact with the bottom end face of the fixing ring. The outer side of the arc-shaped block is provided with a round hole. The top of the positioning screw is provided with a cylinder, and a bearing is provided between the cylinder and the round hole.

9. A portable auxiliary calibrator for measuring a centering rod as described in claim 1 or 4, characterized in that: The top of the elastic adjustment plate is equipped with a scale device corresponding to the elastic adjustment hole.

10. A portable auxiliary calibrator for measuring a centering rod as described in claim 9, characterized in that: The scale device includes a scale ring and a movable scale bar circumferentially disposed on the scale ring. The scale ring has a movable hole in the middle, the movable scale bar is inserted into the movable hole, and the movable scale bar has a scale value.

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