CN218120822U - Steel bar wire rod sample length measuring tool - Google Patents
Steel bar wire rod sample length measuring tool Download PDFInfo
- Publication number
- CN218120822U CN218120822U CN202222169448.9U CN202222169448U CN218120822U CN 218120822 U CN218120822 U CN 218120822U CN 202222169448 U CN202222169448 U CN 202222169448U CN 218120822 U CN218120822 U CN 218120822U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- brush
- rolling
- sheep
- helical gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 15
- 239000010959 steel Substances 0.000 title claims description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 241001494479 Pecora Species 0.000 claims abstract description 21
- 230000005389 magnetism Effects 0.000 claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 210000002268 wool Anatomy 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 239000005060 rubber Substances 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims description 11
- 229910000859 α-Fe Inorganic materials 0.000 claims description 8
- 238000013329 compounding Methods 0.000 claims description 4
- 239000006247 magnetic powder Substances 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 4
- 239000005061 synthetic rubber Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 241000283707 Capra Species 0.000 description 45
- 210000004209 hair Anatomy 0.000 description 45
- 238000004804 winding Methods 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 8
- 238000007790 scraping Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model discloses a reinforcing bar wire rod sample length measuring tool, including the plastics protecting crust, be provided with the rolling dish in the plastics protecting crust, the rolling has the magnetism tape on the rolling dish, rolling dish one side fixedly connected with rolling rocker, the side is provided with first cylinder sheep brush and second cylinder sheep brush in the extraction mouth, first cylinder sheep brush and second cylinder sheep brush rear are provided with two sets of magnets that add, and plastics protecting crust rear portion is provided with the rubber and carries the handle, the utility model relates to a reinforcing bar wire rod sample length measuring tool, through the setting of magnetism tape, can make the magnetism tape measure through magnetism absorption on reinforcing bar sample surface when measuring, laminate completely with the reinforcing bar sample, can measure irregular reinforcing bar sample such as crooked, portable behind the magnetism tape rolling, and low cost, can brush through cylinder wool when rotating the rolling rocker and carry out the rolling, brush down the filth on magnetism tape surface, can prevent that the scale on the magnetism tape from being covered by the filth and influence and measure.
Description
Technical Field
The utility model relates to a sample length measurement correlation technique field specifically is a reinforcing bar wire rod sample length measurement instrument.
Background
According to the requirements of relevant national standards, the weight deviation of the steel bar needs to be checked before delivery and delivery, generally, a sample is intercepted on line, the length is measured through a measuring tape, then the weight is obtained through an electronic scale, finally, the weight deviation is measured through a calculation formula, and then, whether the weight deviation is out of tolerance is judged through comparison with a standard.
In order to facilitate detection, an operator can hammer a sample straight, damage can be caused to the sample, the sample cannot be hammered straight completely, or straightening can be performed by a straightening machine, but the sample can be slightly stretched, so that the detection precision is influenced, measurement can be performed by equipment such as a laser distance measuring instrument, the cost of the measurement instruments is high, and the investment cost is high, so that a steel bar wire rod sample length measuring tool is provided, and the problems are solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reinforcing bar wire rod sample length measurement instrument to solve present reinforcing bar wire rod sample length measurement method that above-mentioned background art provided and can cause destruction and measurement accuracy not enough to the style, also perhaps the great problem of cost.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a reinforcing bar wire rod sample length measuring tool, includes the plastics protecting crust, plastics protecting crust front end is provided with the extraction opening, be provided with the rolling dish in the plastics protecting crust, the rolling has the magnetism tape measure on the rolling dish, rolling dish one side fixedly connected with rolling rocker, the extraction opening inboard is provided with first cylinder sheep brush and second cylinder sheep brush, connect through the gear train between first cylinder sheep brush and the second cylinder sheep brush, be provided with the miniascape on the first cylinder wool brush, be provided with big band pulley on the rolling rocker, miniascape and big band pulley pass through the belt and connect, first cylinder sheep brush and second cylinder sheep brush rear are provided with two sets of magnetism magnets that add, plastics protecting crust rear portion is provided with the rubber and carries the handle.
Preferably, the magnetic flexible ruler is formed by compounding ferrite or strontium ferrite magnetic powder and synthetic rubber, and scales are arranged on two sides of the magnetic flexible ruler.
Preferably, a first helical gear is fixedly connected above the small belt wheel, the first helical gear is meshed with a second helical gear, the second helical gear is fixedly connected with a third helical gear through a transmission rod, and the third helical gear is meshed with a fourth helical gear fixedly connected with a second cylindrical goat hair brush.
Preferably, there are dirty strip of scraping through screw fixed mounting in the first cylinder wool brush of pump outlet department and the second cylinder wool brush outside, scrape dirty strip blade and the laminating of first cylinder wool brush and second cylinder wool brush outside surface.
Preferably, one side of the magnetizing magnet is provided with an ejection spring, the two groups of magnetizing magnets are respectively arranged on two sides of the magnetic flexible rule, and one side of the magnetizing magnet, which is in contact with the magnetic flexible rule, is polished smoothly and processed into an arc shape.
Preferably, one end of the magnetic flexible rule is fixedly connected with a pull-out fixture block, anti-skid lugs are processed on the upper side and the lower side of the pull-out fixture block, and anti-skid grains are processed on the anti-skid lugs.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. through the setting of magnetism flexible rule, can make the magnetism flexible rule measure through magnetism absorption on reinforcing bar sample surface when measuring, laminate completely with the reinforcing bar sample, can measure irregular reinforcing bar samples such as crooked, and measurement accuracy is higher, portable after the rolling of magnetism flexible rule, and low cost.
2. Through the setting of cylinder goat hair brush, can rotate the rolling rocker and carry out the rolling when, through the quick rotation of the first cylinder goat hair brush of band pulley transmission and gear drive and second cylinder goat hair brush, with magnetism flexible rule surface because filth such as magnetic force adsorbed iron fillings or electrified dust brush down, avoid the filth accumulation to influence the rolling of magnetism flexible rule, also can prevent that the scale on the magnetism flexible rule from being covered the influence by the filth and measuring.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic sectional view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the installation structure of the dirt scraping strip of the present invention;
FIG. 5 is a schematic view of the magnetized magnet of the present invention;
fig. 6 is a schematic view of the structure of the pulling-out fixture block of the present invention.
In the figure: 1. a plastic protective shell; 2. a withdrawal port; 3. a winding disc; 4. a magnetic tape; 5. rolling a rocker; 6. a first cylindrical goat hair brush; 7. a second cylindrical goat hair brush; 8. a small belt pulley; 9. a large belt pulley; 10. a first helical gear; 11. a second helical gear; 12. a third bevel gear; 13. a fourth helical gear; 14. scraping dirt strips; 15. adding a magnetic magnet; 16. ejecting a spring; 17. a rubber lifting handle; 18. pulling out the fixture block; 19. and an anti-slip bump.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-6, the present invention provides the following solutions:
example 1:
a steel bar wire sample length measuring tool comprises a plastic protective shell 1, wherein the front end of the plastic protective shell 1 is provided with an extraction port 2, a winding disc 3 is arranged in the plastic protective shell 1, a magnetic flexible rule 4 is wound on the winding disc 3, the magnetic flexible rule 4 is formed by compounding ferrite or strontium ferrite magnetic powder and synthetic rubber, is relatively soft and magnetic, can be adsorbed on the surface of a steel bar sample for measurement, is completely attached to the steel bar sample, can measure irregular steel bar samples such as bending and the like, has relatively high measurement precision, the soft magnetic flexible rule 4 can be wound for convenient carrying, one side of the winding disc 3 is fixedly connected with a winding rocker 5, a first cylindrical goat hair brush 6 and a second cylindrical goat hair brush 7 are arranged on the inner side of the extraction port 2, the first cylindrical goat hair brush 6 is connected with the second cylindrical goat hair brush 7 through a gear set, the first cylindrical goat hair brush 6 is provided with a small belt pulley 8, the rolling rocker 5 is provided with a large belt wheel 9, the small belt wheel 8 is connected with the large belt wheel 9 through a belt, two groups of magnetized magnets 15 are arranged behind the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7, one side of the magnetized magnets 15 is provided with an ejection spring 16, the two groups of magnetized magnets 15 are respectively arranged on two sides of the magnetic flexible rule 4, one side of the magnetized magnets 15, which is in contact with the magnetic flexible rule 4, is polished smoothly and processed into an arc shape, the two groups of magnetized magnets 15 are tightly attached to two sides of the magnetic flexible rule 4 under the pushing of the ejection spring 16, when the magnetic flexible rule 4 is rolled or pulled out, the magnetized magnets 15 can rub against the surface of the magnetic flexible rule 4 so as to supplement magnetism for the magnetic flexible rule 4, and the side of the magnetized magnets 15, which is in contact with the magnetic flexible rule 4, is polished smoothly and processed into an arc shape, so that the surface abrasion of the magnetic flexible rule 4 caused by long-term friction between the magnetized magnets 15 and the magnetic flexible rule 4 can be reduced, the rear part of the plastic protective shell 1 is provided with a rubber lifting handle 17, one end of the magnetic flexible rule 4 is fixedly connected with a pull-out fixture block 18, anti-skid lugs 19 are processed on the upper side and the lower side of the pull-out fixture block 18, anti-skid grains are processed on the anti-skid lugs 19, and the anti-skid lugs 19 with the anti-skid grains on the upper side and the lower side of the pull-out fixture block 18 provide stable finger stress points so as to be convenient for pulling out the magnetic flexible rule 4.
Example 2:
a steel bar wire sample length measuring tool comprises a plastic protective shell 1, wherein the front end of the plastic protective shell 1 is provided with an extraction opening 2, a winding disc 3 is arranged in the plastic protective shell 1, a magnetic flexible rule 4 is wound on the winding disc 3, one side of the winding disc 3 is fixedly connected with a winding rocker 5, the inner side of the extraction opening 2 is provided with a first cylindrical goat hair brush 6 and a second cylindrical goat hair brush 7, the first cylindrical goat hair brush 6 is connected with the second cylindrical goat hair brush 7 through a gear set, the first cylindrical goat hair brush 6 is provided with a small belt wheel 8, the winding rocker 5 is provided with a large belt wheel 9, the small belt wheel 8 is connected with the large belt wheel 9 through a belt, a first helical gear 10 is fixedly connected above the small belt wheel 8, the first helical gear 10 is meshed with a second helical gear 11, the second helical gear 11 is fixedly connected with a third helical gear 12 through a transmission rod, the third helical gear 12 is meshed with a fourth helical gear 13 fixedly connected with the second cylindrical goat hair brush 7, when the rolling rocker 5 rotates, the first cylindrical goat hair brush 6 is driven to rotate clockwise through the transmission of the large belt wheel 9 and the small belt wheel 8, the first cylindrical goat hair brush 6 rotates, meanwhile, the second helical gear 11 is driven to rotate through the first helical gear 10 above the small belt wheel 8, the second helical gear 11 drives the third helical gear 12 to rotate through the transmission rod, the third helical gear 12 drives the fourth helical gear 13 to rotate, so that the second cylindrical goat hair brush 7 rotates anticlockwise along with the fourth helical gear 13, the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7 rotate in opposite directions, scrap iron or dust adsorbed on two sides of the rolled magnetic flexible rule 4 is brushed out towards the outer side of the extraction opening 2, and the outer sides of the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7 at the extraction opening 2 are fixedly provided with the dirt scraping strip 14 through screws, scrape 14 blade edges of dirty strip and the laminating of first cylinder goat hair brush 6 and the 7 outside surfaces of second cylinder goat hair brush, when first cylinder goat hair brush 6 and second cylinder goat hair brush 7 rotate when scraping dirty strip 14 like this, iron fillings or the dust of adhesion are scraped dirty strip 14 and are scraped down on first cylinder goat hair brush 6 and the second cylinder goat hair brush 7, avoid the filth at first cylinder goat hair brush 6 and the 7 surface accumulation of second cylinder goat hair brush, scrape and can change through the screw dismantlement installation after the 14 wearing and tearing of dirty strip, first cylinder goat hair brush 6 and 7 rear of second cylinder goat hair brush are provided with two sets of magnetism magnets 15 that add, 1 rear portion of plastics protecting crust is provided with rubber and carries handle 17.
The working principle is as follows: when the tool for measuring the length of the steel bar wire rod sample is used, firstly, the magnetic flexible rule 4 can be pulled out by pulling out the clamping block 18, the anti-skid lugs 19 with anti-skid grains on the upper side and the lower side of the pulling-out clamping block 18 provide stable finger stress points, so that the magnetic flexible rule 4 can be conveniently pulled out, the magnetic flexible rule 4 is formed by compounding ferrite or strontium ferrite magnetic powder and synthetic rubber, is relatively flexible and magnetic, can be adsorbed on the surface of a bent steel bar sample and is used for measuring the bent irregular steel bar sample, after the measurement is finished, the magnetic flexible rule 4 can be wound on the winding disc 3 by rotating the winding rocker 5, the first cylindrical wool brush 6 can be driven to rotate clockwise by the transmission of the large belt wheel 9 and the small belt wheel 8 when the winding rocker 5 rotates, the first cylindrical wool brush 6 can drive the second helical gear 11 to rotate by the first helical gear 10 above the small belt wheel 8, the second helical gear 11 drives the third helical gear 12 to rotate through the transmission rod, the third helical gear 12 drives the fourth helical gear 13 to rotate, so that the second cylindrical goat hair brush 7 rotates anticlockwise along with the fourth helical gear 13, the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7 rotate in opposite directions, scrap iron or dust adsorbed on two sides of the wound magnetic flexible rule 4 is brushed out towards the outer side of the extraction opening 2, when the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7 rotate and pass through the scraping strip 14, the scrap iron or dust adhered on the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7 is scraped by the scraping strip 14, the accumulation of dirt on the surfaces of the first cylindrical goat hair brush 6 and the second cylindrical goat hair brush 7 is avoided, the scraping strip 14 can be disassembled, installed and replaced through screws after being worn, the magnetic flexible rule 4 is often used for measuring steel bar wire rods, some reinforcing steel bar wire rods can remain certain temperature when the cooling time is short, the magnetic flexible rule 4 can be demagnetized gradually when the reinforcing steel bar wire rods are in long-time contact with the magnetic flexible rule 4, the magnetizing magnet 15 can magnetize the magnetic flexible rule 4 when the reinforcing steel bar wire rods are wound or released, two groups of magnetizing magnets 15 are tightly attached to two sides of the magnetic flexible rule 4 under the pushing of the ejection spring 16, when the magnetic flexible rule 4 is wound or pulled out, the magnetizing magnet 15 can rub the surface of the magnetic flexible rule 4 to complement magnetism for the magnetic flexible rule 4, one side, in contact with the magnetic flexible rule 4, of the magnetizing magnet 15 is polished smoothly and processed into an arc shape, the surface abrasion of the magnetic flexible rule 4 caused by long-term friction of the magnetizing magnet 15 and the magnetic flexible rule 4 can be reduced, and a series of work can be completed. Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a reinforcing bar wire rod sample length measurement instrument, includes plastics protecting crust (1), its characterized in that: plastics protecting crust (1) front end is provided with extraction opening (2), be provided with rolling dish (3) in plastics protecting crust (1), the rolling has magnetism tape (4) on rolling dish (3), rolling dish (3) one side fixedly connected with rolling rocker (5), extraction opening (2) inboard is provided with first cylinder sheep brush (6) and second cylinder sheep brush (7), connect through the gear train between first cylinder sheep brush (6) and the second cylinder sheep brush (7), be provided with on first cylinder sheep brush (6) band pulley (8), be provided with on rolling rocker (5) big band pulley (9), little band pulley (8) and big band pulley (9) are connected through the belt, first cylinder sheep brush (6) and second cylinder sheep brush (7) rear are provided with two sets of magnetism magnet (15), plastics protecting crust (1) rear portion is provided with rubber and carries handle (17).
2. The steel wire rod sample length measuring tool of claim 1, characterized in that: the magnetic flexible ruler (4) is formed by compounding ferrite or strontium ferrite magnetic powder and synthetic rubber, and scales are arranged on two sides of the magnetic flexible ruler (4).
3. The reinforcing bar wire rod sample length measuring tool of claim 1, characterized in that: the utility model discloses a cylindrical wool brush, including little band pulley (8), first helical gear (10) of little band pulley (8) top fixedly connected with, first helical gear (10) meshing has second helical gear (11), second helical gear (11) are through transfer line fixedly connected with third helical gear (12), third helical gear (12) meshing has fourth helical gear (13) with second cylinder wool brush (7) fixed connection.
4. The reinforcing bar wire rod sample length measuring tool of claim 1, characterized in that: first cylinder sheep brush (6) and second cylinder sheep brush (7) outside of extraction opening (2) department have through screw fixed mounting scrape dirty strip (14), scrape dirty strip (14) blade and first cylinder sheep brush (6) and second cylinder sheep brush (7) outside surface laminating.
5. The steel wire rod sample length measuring tool of claim 1, characterized in that: one side of the magnetizing magnet (15) is provided with an ejection spring (16), the two groups of magnetizing magnets (15) are respectively arranged on two sides of the magnetic flexible rule (4), and one side of the magnetizing magnet (15) in contact with the magnetic flexible rule (4) is polished smoothly and processed into an arc shape.
6. The reinforcing bar wire rod sample length measuring tool of claim 1, characterized in that: one end of the magnetic flexible rule (4) is fixedly connected with a pull-out fixture block (18), anti-skid lugs (19) are processed on the upper side and the lower side of the pull-out fixture block (18), and anti-skid grains are processed on the anti-skid lugs (19).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202222169448.9U CN218120822U (en) | 2022-08-18 | 2022-08-18 | Steel bar wire rod sample length measuring tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202222169448.9U CN218120822U (en) | 2022-08-18 | 2022-08-18 | Steel bar wire rod sample length measuring tool |
Publications (1)
Publication Number | Publication Date |
---|---|
CN218120822U true CN218120822U (en) | 2022-12-23 |
Family
ID=84523737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202222169448.9U Active CN218120822U (en) | 2022-08-18 | 2022-08-18 | Steel bar wire rod sample length measuring tool |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN218120822U (en) |
-
2022
- 2022-08-18 CN CN202222169448.9U patent/CN218120822U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE59409167D1 (en) | Process for the electrical readout of a multi-digit roller counter for a volume measuring device | |
CN218120822U (en) | Steel bar wire rod sample length measuring tool | |
CN210426399U (en) | High-efficient check out test set of mainframe box roughness of computer technology development | |
CN213903121U (en) | Tensile strength detector for PVC plastic gloves | |
CN211855248U (en) | Portable thickness gauge | |
CN112066835A (en) | Tape measure with damping structure | |
CN214010140U (en) | Standard caliper rule convenient for wiring | |
CN219162053U (en) | Protective housing for probe of eddy current flaw detector | |
CN219448819U (en) | Cable winding device for cable production | |
CN208140068U (en) | A kind of flexible cable range unit | |
CN221404250U (en) | Pressure pipeline on-line monitoring device | |
CN221302280U (en) | Multipurpose coating thickness gauge | |
CN211696313U (en) | Coating thickness gauge with adjustable | |
CN205157702U (en) | LAN interface survey line appearance of roll coil of strip chi | |
CN212845940U (en) | Novel wall paper processing is dimensional measurement for inspection device | |
CN219495059U (en) | Reinforcing bar protective layer thickness detection equipment | |
CN213515531U (en) | Mould pressing calibrator with anti-drop function | |
CN210802263U (en) | Measuring gauge capable of improving detection efficiency | |
CN211954076U (en) | Communication line engineering cable length measuring device | |
CN216115816U (en) | Portable engineering cost dipperstick | |
CN209579877U (en) | A kind of multi-functional timber quarantine guarded blade utility knife | |
CN216001003U (en) | Building block brick cutting equipment capable of achieving line snapping positioning | |
CN213843394U (en) | Grounding resistance tester applied to lightning detection test | |
CN221376852U (en) | Automatic calibrated sound level meter | |
CN215833616U (en) | Ultrasonic thickness gauge convenient to short-term test |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |