CN208860264U - A kind of tape measure of field test rapid survey caliber - Google Patents
A kind of tape measure of field test rapid survey caliber Download PDFInfo
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- CN208860264U CN208860264U CN201821562997.XU CN201821562997U CN208860264U CN 208860264 U CN208860264 U CN 208860264U CN 201821562997 U CN201821562997 U CN 201821562997U CN 208860264 U CN208860264 U CN 208860264U
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- fixedly connected
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- field test
- tape measure
- spring
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Abstract
The utility model discloses a kind of field test tape measures of rapid survey caliber, including Flexible rule case, fixed column is fixedly connected on rear side of Flexible rule case inner wall, fixed column is socketed with clockwork spring on front side of surface, the surface of fixed column is arranged with turntable, and the positive top of turntable is fixedly connected with the first fixed block, and the positive bottom of turntable is fixedly connected with the second fixed block, one end of clockwork spring is fixedly connected with fixed column, and the one end of clockwork spring far from fixed column is fixedly connected with the first fixed block.The tape measure of field test rapid survey caliber, pass through the setting of retaining mechanism and regulating mechanism, so that tape strip is crossed retaining mechanism and locking use is carried out to tape strip, regulating mechanism can assist carrying out double measurement simultaneously, measuring speed is improved, is quickly used convenient for field test person, solves the problems, such as that measuring speed is slower when existing field test is used with tape measure, have the very fast advantage of measuring speed, improves the working efficiency of proofer.
Description
Technical field
The utility model relates to detection instrument technical field, the volume of specially a kind of field test rapid survey caliber
Ruler.
Background technique
Tape measure is common measuring tool in daily life, is one of family's indispensability tool.Carpenter's square, geomantic omen ruler, literary meter
Also belong to steel tape, steel tape is building and finishing common tool, since tape measure small volume measures simultaneously when on-site test
Range is wide, makes testing staff must be with one of tool.
It is needed when field test caliber with tape measure caliber, but measuring speed when existing field test is used with tape measure
It is relatively slow, cause working efficiency lower, while measurement not enough quickly makes that speed is examined to decrease, and increases working strength, it is inconvenient
It is used in user.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of tape measure of field test rapid survey caliber,
Have the very fast advantage of measuring speed, solves the problems, such as that measuring speed is slower when existing field test is used with tape measure.
For the purpose of the tape measure of the above-mentioned field test rapid survey caliber of realization, the utility model provides following technical side
Case: a kind of tape measure of field test rapid survey caliber, including Flexible rule case are fixedly connected on rear side of the Flexible rule case inner wall
Fixed column, clockwork spring is socketed on front side of the fixed column surface, and the surface of the fixed column is arranged with turntable, the turntable front
Top be fixedly connected with the first fixed block, the positive bottom of turntable is fixedly connected with the second fixed block, the clockwork spring
One end is fixedly connected with fixed column, and the one end of the clockwork spring far from fixed column is fixedly connected with the first fixed block, the turntable
Surface is arranged with tape strip, and one end of the tape strip is fixedly connected with the second fixed block, and the other end of the tape measure is through volume
Ruler shell and the outside for extending to Flexible rule case are fixedly connected with measuring head, and the right side opening at the top of the Flexible rule case is equipped with sliding slot, described
The internal slide of sliding slot is connected with locking button, and the top on rear side of the Flexible rule case inner wall is fixedly connected with latch, the locking
Retaining mechanism is provided on the right side of plate, the right side at the top of the Flexible rule case is fixedly connected with opening block, and the tape strip is separate to be turned
One end of disk slidably connects measuring block, and the front of the measuring block is connected with the first axle sleeve block, the first axle sleeve block
Measurement plate is fixedly connected at the top of rear side, the left side at the top of the measuring block is fixedly connected with regulating mechanism, the measuring block
The bottom in left side is fixedly connected with support plate.
The improvement of above scheme is that the retaining mechanism includes the first pivot pin, and the surface of first pivot pin is arranged with
Plate is fixedly connected with bottom plate on the right side of the cage plate, and the first spring is fixedly connected on the right side of the bottom plate, the locking button
Left side is fixedly connected with sliding shoe, and the right end of first spring is fixedly connected with the top on the left of sliding shoe, the sliding shoe
Bottom be fixedly connected with link block, be fixedly connected to clamping block on the left of the bottom and opening block bottom of the link block.
The further improvement of above scheme is that the regulating mechanism includes damper box, the right side at the top of the damper box inner wall
It is fixedly connected with the first skewback, the damper box is internally provided with the second skewback, and the top on the left of second skewback is fixed
It is connected with pull rod, the left end of the pull rod is through damper box and extends to the outside of damper box and is fixedly connected with baffle, the drawing
Baffle ring is socketed on the right side of bar surface, the surface of the pull rod is arranged with second spring, the right end and baffle ring of the second spring
Left side be fixedly connected, the left contact of the left end of the second spring and damper box inner wall.
The further improvement of above scheme is that the positive two sides of the measuring block are fixedly connected to the second axle sleeve block, institute
It states and is fixedly connected with shaft on the inside of the second axle sleeve block, the surface of the shaft is flexibly connected with the first axle sleeve block, the measurement
The bottom of plate is fixedly connected with pointer blocks.
Another improvement of above scheme is that the top on the right side of the sliding shoe is provided with non-slip mat, and the clamping block is thermoplastic
Material is made, and the measurement plate and pointer blocks are that transparent material is made, and the material of the measuring block is acrylic board material system
At the front of the Flexible rule case is fixedly connected with waist card.
The another improvement of above scheme is that right side opening at the top of second skewback is equipped with rolling groove, the rolling groove it is interior
Portion is provided with the second pivot pin, and the surface of second pivot pin is arranged with idler wheel, and the bottom of second skewback is provided with first and rubs
Scrubbing pad is provided with the second friction pad at the top of the support plate.
Compared with prior art, the utility model provides a kind of tape measure of field test rapid survey caliber, has
Below the utility model has the advantages that
1, the tape measure of field test rapid survey caliber makes tape measure by the setting of retaining mechanism and regulating mechanism
Item can cross retaining mechanism and carry out locking use to tape strip, while regulating mechanism can assist carrying out double measurement, improve and survey
Speed is measured, is quickly used convenient for field test person, it is slower to solve measuring speed when existing field test is used with tape measure
Problem has the very fast advantage of measuring speed, improves the working efficiency of proofer.
2, the tape measure of field test rapid survey caliber passes through the first pivot pin, cage plate, bottom plate, the first spring, sliding
The setting of block, link block and clamping block, convenient for being used cooperatively sliding shoe card for the first pivot pin, cage plate and the first spring
Tightly, while by the cooperation of sliding shoe, link block and clamping block make clamping block that tape strip is carried out clamping.
3, the tape measure of field test rapid survey caliber passes through damper box, the first skewback, the second skewback, pull rod, gear
The setting of plate, baffle ring and second spring, convenient for user by pulling baffle to move pull rod and baffle ring to the left, while the
The compression of two spring stress, the second skewback is moved to the left to be detached from tape strip, the position of measuring block can be adjusted, after unclamping baffle
Second spring reset makes the second skewback contact friction clamping with tape strip by the first skewback.
4, the tape measure of field test rapid survey caliber, by the setting of the second axle sleeve block, shaft and pointer blocks, just
The first axle sleeve block is carried out by front and back overturning by the second axle sleeve block and being used cooperatively for shaft in using, while pointer blocks can be just
Gained number is observed and measured in user.
5, the tape measure of field test rapid survey caliber, by non-slip mat, the measurement plate of waist card and transparent material and
The setting of pointer blocks improves antiskid effect by non-slip mat using sliding shoe, while transparent measurement plate and pointer blocks is conducive to
User observes the number of tape strip, and waist card can carry out loins carrying convenient for user.
6, the tape measure of field test rapid survey caliber passes through rolling groove, the second pivot pin, idler wheel, the first friction pad
With the setting of the second friction pad, the frictional force with the first skewback, while the first friction pad are reduced by idler wheel convenient for the second skewback
With the second friction pad convenient for tape strip friction clamping, clamping stability is improved.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model left view sectional view；
Fig. 3 is the right view of the utility model measuring block；
Fig. 4 is the top view of the utility model measuring block；
Fig. 5 is the enlarged drawing at the utility model A；
Fig. 6 is the enlarged drawing at the utility model B；
Fig. 7 is the partial enlarged view of the utility model damper box.
In figure: 1 Flexible rule case, 2 fixed columns, 3 clockwork springs, 4 turntables, 5 first fixed blocks, 6 second fixed blocks, 7 tape strips, 8 are surveyed
Measure head, 9 sliding slots, 10 locking buttons, 11 latch, 12 retaining mechanisms, 121 first pivot pins, 122 cage plates, 123 bottom plates, 124 first bullets
Spring, 125 sliding shoes, 126 link blocks, 127 clamping blocks, 13 opening blocks, 14 measuring blocks, 15 first axle sleeve blocks, 16 measurement plates, 17 are adjusted
Save mechanism, 171 damper boxs, 172 first skewbacks, 173 second skewbacks, 174 pull rods, 175 baffles, 176 baffle rings, 177 second springs,
18 support plates, 19 second axle sleeve blocks, 20 shafts, 21 pointer blocks, 22 waist cards, 23 rolling grooves, 24 second pivot pins, 25 idler wheels.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-7 is please referred to, embodiment 1: a kind of tape measure of field test rapid survey caliber, including Flexible rule case 1, tape measure
It is fixedly connected with fixed column 2 on rear side of 1 inner wall of shell, clockwork spring 3 is socketed on front side of 2 surface of fixed column, the surface of fixed column 2 is arranged
There is turntable 4, the positive top of turntable 4 is fixedly connected with the first fixed block 5, and it is solid that the positive bottom of turntable 4 is fixedly connected with second
Determine block 6, one end of clockwork spring 3 is fixedly connected with fixed column 2, the one end of clockwork spring 3 far from fixed column 2 and the fixed company of the first fixed block 5
Connect, the surface of turntable 4 is arranged with tape strip 7, and one end of tape strip 7 is fixedly connected with the second fixed block 6, tape strip 7 it is another
End is through Flexible rule case 1 and extends to the outside of Flexible rule case 1 and is fixedly connected with measuring head 8, and the right side opening at 1 top of Flexible rule case, which is equipped with, to be slided
Slot 9, the internal slide of sliding slot 9 are connected with locking button 10, and the top on rear side of 1 inner wall of Flexible rule case is fixedly connected with latch 11, locks
Retaining mechanism 12 is provided on the right side of tight plate, the right side at 1 top of Flexible rule case is fixedly connected with opening block 13, and tape strip 7 is separate to be turned
One end of disk 4 slidably connects measuring block 14, and the front of measuring block 14 is connected with the first axle sleeve block 15, the first axle sleeve block 15
Measurement plate 16 is fixedly connected at the top of rear side, the left side at 14 top of measuring block is fixedly connected with regulating mechanism 17, measuring block 14
The bottom in left side is fixedly connected with support plate 18.
Embodiment 2: the difference from embodiment 1 is that retaining mechanism 12 includes the first pivot pin 121, the table of the first pivot pin 121
Surface cover is equipped with cage plate 122, and the right side of cage plate 122 is fixedly connected with bottom plate 123, and the right side of bottom plate 123 is fixedly connected with the first bullet
Spring 124, the left side of locking button 10 are fixedly connected with sliding shoe 125, the top in 125 left side of right end and sliding shoe of the first spring 124
Portion is fixedly connected, and the bottom of sliding shoe 125 is fixedly connected with link block 126, the bottom of link block 126 and 13 bottom of block that is open
Left side is fixedly connected to clamping block 127, passes through the first pivot pin 121, cage plate 122, bottom plate 123, the first spring 124, sliding shoe
125, the setting of link block 126 and clamping block 127, convenient for being used cooperatively for the first pivot pin 121, cage plate 122 and the first spring 124
Sliding shoe 125 is subjected to clamping, while making clamping block 127 will by the cooperation of sliding shoe 125, link block 126 and clamping block 127
Tape strip 7 carries out clamping.
Embodiment 3: the difference from embodiment 1 is that regulating mechanism 17 includes damper box 171,171 inner wall of damper box top
Right side be fixedly connected with the first skewback 172, damper box 171 is internally provided with the second skewback 173,173 left side of the second skewback
Top be fixedly connected with pull rod 174, the left end of pull rod 174 through damper box 171 and extends to the external fixed of damper box 171
It is connected with baffle 175, baffle ring 176 is socketed on the right side of 174 surface of pull rod, the surface of pull rod 174 is arranged with second spring 177,
The right end of second spring 177 is fixedly connected with the left side of baffle ring 176, the left end of second spring 177 and a left side for 171 inner wall of damper box
Side contacts pass through damper box 171, the first skewback 172, the second skewback 173, pull rod 174, baffle 175, baffle ring 176 and the second bullet
The setting of spring 177, convenient for user by pulling baffle 175 to move pull rod 174 and baffle ring 176 to the left, while second
177 forced compression of spring, the second skewback 173 is moved to the left to be detached from tape strip 7, the position of measuring block 14 can be adjusted, pine
The reset of second spring 177 makes the second skewback 173 contact friction clamping with tape strip 7 by the first skewback 172 after opening baffle 175.
Embodiment 4: the difference from embodiment 1 is that the positive two sides of measuring block 14 are fixedly connected to the second axle sleeve block
19, the inside of the second axle sleeve block 19 is fixedly connected with shaft 20, and the surface of shaft 20 is flexibly connected with the first axle sleeve block 15, measurement
The bottom of plate 16 is fixedly connected with pointer blocks 21, by the setting of the second axle sleeve block 19, shaft 20 and pointer blocks 21, is easy to use
First axle sleeve block 15 is subjected to front and back overturning by the second axle sleeve block 19 and being used cooperatively for shaft 20, while pointer blocks 21 can
Gained number is observed and measured convenient for user.
Embodiment 5: the difference from embodiment 1 is that the top on 125 right side of sliding shoe is provided with non-slip mat, clamping block 127
It is made of thermoplastic material, measurement plate 16 and pointer blocks 21 are that transparent material is made, and the material of measuring block 14 is acryl plates
Matter is made, and the front of Flexible rule case 1 is fixedly connected with waist card 22, passes through 16 and of measurement plate of non-slip mat, waist card 22 and transparent material
The setting of pointer blocks 21 improves antiskid effect, while transparent measurement plate 16 and pointer blocks by non-slip mat using sliding shoe 125
21 are conducive to the number that user observes tape strip 7, and waist card 22 can carry out loins carrying convenient for user.
Embodiment 6: the difference from embodiment 1 is that the right side opening at 173 top of the second skewback is equipped with rolling groove 23, rolling groove
23 are internally provided with the second pivot pin 24, and the surface of the second pivot pin 24 is arranged with idler wheel 25, the bottom of the second skewback 173 is provided with
First friction pad, the top of support plate 18 are provided with the second friction pad, pass through rolling groove 23, the second pivot pin 24, idler wheel 25, first
The setting of friction pad and the second friction pad reduces the frictional force with the first skewback 172 by idler wheel 25 convenient for the second skewback 173,
The first friction pad and the second friction pad improve clamping stability convenient for the friction clamping of tape strip 7 simultaneously.
Above-described embodiment can according to need any combination, as long as obtained scheme, which does not conflict, belongs to the utility model
In protection scope.
The tape measure of field test rapid survey caliber makes to roll up by the setting of retaining mechanism 12 and regulating mechanism 17
Ruler item 7 can cross retaining mechanism 12 and carry out locking use to tape strip 7, while regulating mechanism 17 can assist carrying out secondary survey
Amount improves measuring speed, quickly uses convenient for field test person, solves and measures speed when existing field test is used with tape measure
Slower problem is spent, has the very fast advantage of measuring speed, improves the working efficiency of proofer.
When in use, user presses down on is moved to the left locking button 10 again, is moved to the left sliding shoe 125, makes clamping
Block 127 is detached from tape strip 7, and after user unclamps locking button, bottom plate 123 carries out resilient support to spring 124, and spring 124 is right again
Sliding shoe 125 carries out elastic force promotion, so that sliding shoe 125 and Flexible rule case 1 is carried out friction immobilisation, user pulls to the right measuring head again
8 make tape strip 7 be pulled to the distance for needing to measure by the block 13 that is open, and pass through baffle 175 and measurement again in corresponding distance
The separation of plate 16 makes baffle 175 that pull rod 174 be driven to be moved to the left, and pull rod 174, which is moved to the left baffle ring 176, makes the first spring 124
Carry out forced compression, clearance fit between pull rod 174 and damper box, downward minute-pressure while pulling to the left of pull rod 174, due to thick stick
Rod principle makes the bottom of the second skewback 173 be upturned, to leave tape strip 7, carries out secondary survey convenient for users to mobile 14
Amount, double measurement, which refers to, to be continued to measure the size for being less than measuring head 8 in the case where not withdrawing tape strip 7, and reduction makes
The time that user walks up and down, and double measurement, without withdrawing tape strip 7, user is loose after traverse measurement block to the distance needed
Open baffle 175, second spring 177 resets, and makes baffle ring 176 that pull rod 174 be driven to move right, while making second tiltedly by idler wheel 25
Block 173 pulls down, and tape strip 7 is carried out clamping use by support plate 18 and the second skewback 173, then pass through transparent material
Pointer blocks 21 observe number, so that reducing user shrinks the time opened and used, field test efficiency are improved, when reducing measurement
Between.
In conclusion tape measure of the field test with rapid survey caliber, pass through retaining mechanism 12 and regulating mechanism 17
Setting enables tape strip 7 to cross retaining mechanism 12 and carries out locking use to tape strip 7, at the same regulating mechanism 17 can assist into
Row double measurement improves measuring speed, quickly uses convenient for field test person, solve existing field test and used with tape measure
When the slower problem of measuring speed.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of field test tape measure of rapid survey caliber, including Flexible rule case (1), it is characterised in that: the Flexible rule case (1)
It is fixedly connected on rear side of inner wall fixed column (2), is socketed with clockwork spring (3), the fixed column on front side of fixed column (2) surface
(2) surface is arranged with turntable (4), and the positive top of the turntable (4) is fixedly connected with the first fixed block (5), the turntable
(4) positive bottom is fixedly connected with the second fixed block (6), and one end of the clockwork spring (3) is fixedly connected with fixed column (2), institute
It states clockwork spring (3) to be fixedly connected far from the one end of fixed column (2) with the first fixed block (5), the surface of the turntable (4) is arranged with volume
One end of ruler item (7), the tape strip (7) is fixedly connected with the second fixed block (6), and the other end of the tape strip (7) runs through
Flexible rule case (1) and the outside for extending to Flexible rule case (1) are fixedly connected with measuring head (8), the right side opening at the top of the Flexible rule case (1)
Equipped with sliding slot (9), the internal slide of the sliding slot (9) is connected with locking button (10), the top on rear side of Flexible rule case (1) inner wall
It is fixedly connected with latch (11), is provided with retaining mechanism (12) on the right side of the latch (11), at the top of the Flexible rule case (1)
Right side be fixedly connected with opening block (13), the tape strip (7) slidably connects measuring block far from the one end of turntable (4)
(14), the front of the measuring block (14) is connected with the first axle sleeve block (15), the top on rear side of the first axle sleeve block (15)
Portion is fixedly connected with measurement plate (16), and the left side at the top of the measuring block (14) is fixedly connected with regulating mechanism (17), the survey
Bottom on the left of gauge block (14) is fixedly connected with support plate (18).
2. a kind of tape measure of field test rapid survey caliber according to claim 1, it is characterised in that: the locking
Mechanism (12) includes the first pivot pin (121), and the surface of first pivot pin (121) is arranged with cage plate (122), the cage plate
(122) it is fixedly connected on the right side of bottom plate (123), is fixedly connected with the first spring (124), institute on the right side of the bottom plate (123)
It states and is fixedly connected with sliding shoe (125) on the left of locking button (10), the right end of first spring (124) and sliding shoe (125)
It is fixedly connected at the top of left side, the bottom of the sliding shoe (125) is fixedly connected with link block (126), the link block (126)
Bottom and opening block (13) bottom on the left of be fixedly connected to clamping block (127).
3. a kind of tape measure of field test rapid survey caliber according to claim 1, it is characterised in that: the adjusting
Mechanism (17) includes damper box (171), and the right side at the top of damper box (171) inner wall is fixedly connected with the first skewback (172),
The damper box (171) is internally provided with the second skewback (173), and the top on the left of second skewback (173) is fixedly connected
Have pull rod (174), the left end of the pull rod (174) runs through damper box (171) and extends to the external fixed company of damper box (171)
It is connected to baffle (175), is socketed with baffle ring (176) on the right side of pull rod (174) surface, the surface of the pull rod (174) is arranged
Have second spring (177), is fixedly connected on the left of the right end of the second spring (177) and baffle ring (176), the second spring
(177) left contact of left end and damper box (171) inner wall.
4. a kind of tape measure of field test rapid survey caliber according to claim 1, it is characterised in that: the measurement
Block (14) positive two sides are fixedly connected to the second axle sleeve block (19), are fixedly connected on the inside of the second axle sleeve block (19)
Shaft (20), the surface of the shaft (20) are flexibly connected with the first axle sleeve block (15), and the bottom of the measurement plate (16) is fixed
It is connected with pointer blocks (21).
5. a kind of tape measure of field test rapid survey caliber according to claim 2, it is characterised in that: the sliding
Top on the right side of block (125) is provided with non-slip mat, and the clamping block (127) is made of thermoplastic material, the measurement plate (16) and
Pointer blocks (21) are that transparent material is made, and the material of the measuring block (14) is made of acrylic board material, the Flexible rule case
(1) front is fixedly connected with waist card (22).
6. a kind of tape measure of field test rapid survey caliber according to claim 3, it is characterised in that: described second
Right side opening at the top of skewback (173) is equipped with rolling groove (23), and the rolling groove (23) is internally provided with the second pivot pin (24), institute
The surface for stating the second pivot pin (24) is arranged with idler wheel (25), and the bottom of second skewback (173) is provided with the first friction pad, institute
It states and is provided with the second friction pad at the top of support plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821562997.XU CN208860264U (en) | 2018-09-26 | 2018-09-26 | A kind of tape measure of field test rapid survey caliber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821562997.XU CN208860264U (en) | 2018-09-26 | 2018-09-26 | A kind of tape measure of field test rapid survey caliber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208860264U true CN208860264U (en) | 2019-05-14 |
Family
ID=66419175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821562997.XU Expired - Fee Related CN208860264U (en) | 2018-09-26 | 2018-09-26 | A kind of tape measure of field test rapid survey caliber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208860264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033251A (en) * | 2020-09-05 | 2020-12-04 | 汪南益 | Farmland measurement planning distance measuring device with positioning and dotting functions |
-
2018
- 2018-09-26 CN CN201821562997.XU patent/CN208860264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033251A (en) * | 2020-09-05 | 2020-12-04 | 汪南益 | Farmland measurement planning distance measuring device with positioning and dotting functions |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20200926 |