CN216558634U - Engineering detects with portable reinforcing bar length test device - Google Patents

Abstract

The invention relates to the technical field of steel bar length testing, in particular to a portable steel bar length testing device for engineering detection. The device avoids the inconvenience of a user in measuring some irregular reinforced columns, enables the user to more conveniently measure some irregular reinforced columns, greatly reduces the measurement error, improves the accuracy of data, has strong practicability, can prevent the tape main body from winding and knotting when being withdrawn, can clean the surface of the tape main body, and improves the tidiness of the tape main body.

Description

Engineering detects with portable reinforcing bar length test device

Technical Field

The invention relates to the technical field of steel bar length testing, in particular to a portable steel bar length testing device for engineering detection.

Background

The steel bars are steel materials for reinforced concrete and prestressed reinforced concrete, the cross sections of the steel bars are circular and sometimes square with round corners, the steel bars comprise plain round steel bars, ribbed steel bars and twisted steel bars, the most common device for measuring the length of the steel bars at present is a steel tape, and sometimes, when the length of the steel bars is longer, a user can also use a leather tape to measure the length;

at present current leather measuring tape is when using, and inconvenient user carries out length measurement to some reinforcing bars post or crooked reinforcing bar for the user can't make the measuring wire of leather measuring tape be in same horizontal plane when measuring, and then the great error that exists influences the accuracy of user data.

Disclosure of Invention

The invention aims to provide a portable reinforcing steel bar length testing device for engineering detection, which solves the problems that the existing leather measuring tape proposed in the background technology is inconvenient for a user to measure the length of some reinforcing steel bars or bent reinforcing steel bars, so that the user cannot enable measuring lines of the leather measuring tape to be positioned on the same horizontal plane during measurement, and further, larger errors exist and the accuracy of user data is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a portable reinforcing steel bar length testing device for engineering detection comprises a leather measuring tape body, wherein the leather measuring tape body is wound inside the leather measuring tape body, one end of the leather measuring tape body extends to the right end of the leather measuring tape body, a fixing mechanism assembly is arranged at the right end of the leather measuring tape body and comprises a first fixing piece, one end of the leather measuring tape body penetrates through the first fixing piece and extends to the right end of the first fixing piece, a fixing plate is hinged to the bottom end of the first fixing piece, a strong magnet is fixedly connected to the bottom end of the fixing plate, a pressing groove is formed in the top end of the first fixing piece, a pressing block is inserted into the top end of the pressing groove, a first spring is fixedly connected to the bottom end of the pressing block, the bottom end of the first spring is fixedly connected with the inner wall of the pressing groove, and two groups of telescopic rods are arranged inside the pressing groove, the rear end of the telescopic rod is hinged with the surface of the pressing block, the inner part of the first fixing part is provided with a rotating groove, the left side and the right side of the rotating groove are communicated with the pressing groove, the inner part of the rotating groove is provided with a first rotating rod, the two ends of the first rotating rod penetrate through the rotating groove and extend to the inner part of the pressing groove and are fixedly connected with the surface of the telescopic rod, the inner part of the first fixing part is provided with a clamping plate, the rear end of the clamping plate is fixedly connected with the front end of the telescopic rod, the inner wall of the bottom end of the clamping plate is provided with a receiving groove, the inner wall of the top end of the receiving groove is provided with a threaded hole in a penetrating manner, the pressing plate is arranged inside the receiving groove, the top end of the threaded hole is inserted with a threaded rod, the bottom end of the threaded rod embedded into the receiving groove penetrates through the threaded hole and extends to the inner part of the receiving groove and is connected with the pressing plate through a bearing, the front end of the clamping plate is provided with a first abutting groove, the surface of the first fixing part is provided with a moving groove, a fixed rod is arranged inside the movable groove, the rear end of the fixed rod penetrates through the movable groove and extends to the inside of the first abutting groove, a pushing piece is inserted at the top end of the movable groove, the bottom end of the pushing piece is fixedly connected with the surface of the fixed rod, a second spring is fixedly connected at the front end of the fixed rod, the front end of the second spring is fixedly connected with the inner wall of the movable groove, an anti-winding cleaning mechanism assembly is arranged at the right end of the leather tape main body and comprises a second fixing piece, a second fixing piece is fixedly connected at the bottom end of the right side of the leather tape main body, a slot is formed in the right end of the second fixing piece, a first anti-winding plate is inserted at the right end of the slot, a first cleaning groove is formed in the top end of the first anti-winding plate in a penetrating mode, two groups of first square grooves are formed in the top end of the slot, and a square bottom plate is placed on the inner wall of the bottom end of the first square groove, the top end of the slot is provided with a second anti-winding plate, the left end of the second anti-winding plate is positioned inside the second fixing part, the bottom end of the second anti-winding plate is provided with a second cleaning groove in a penetrating way, the top end of the second anti-winding plate is provided with two groups of second square grooves in a penetrating way, the top end of each second square groove is inserted with a second rotating rod, the bottom end of each second rotating rod penetrates through the second square groove to extend into the first square groove and is connected with the top end of the square bottom plate through an embedded bearing, the top end of each second rotating rod is fixedly connected with a pinching rod, the surface of each second rotating rod is sleeved with two groups of thread sleeves, the two groups of thread sleeves are positioned inside the first square groove, the two groups of thread sleeves are positioned inside the second square groove, cleaning parts are arranged inside the first cleaning groove and the second cleaning groove, and the front end and the rear end of each cleaning part penetrate through the first cleaning groove to extend into the first square groove, the front end and the rear end of the other group of cleaning piece all penetrate through the second cleaning groove and extend to the inside of the second square groove, the front end of the cleaning piece is connected with the threaded sleeve through the embedded bearing, the rear end of the cleaning piece is connected with the moving square block through the embedded bearing, the moving square block is located inside the second square groove and the first square groove respectively, and the locking mechanism is arranged inside the second anti-winding plate.

Preferably, the inner wall of first mounting bottom has evenly seted up the race, the inside of race all is connected with the wheel through embedded bearing.

Preferably, one side of the bottom end of the clamping plate is in an inclined plane shape, and one side of the top end of the fixing rod is in an inclined plane shape.

Preferably, the bottom end of the pressing plate is glued with a first rubber pad, and the thickness of the first rubber pad is three millimeters.

Preferably, the top end of the pushing piece is provided with anti-skid grains which are all triangular.

Preferably, the inner wall of the slot is glued with a second rubber pad, and the inner wall of the second rubber pad is attached to the surface of the first anti-winding plate.

Preferably, the surface of the second rotating rod is provided with an external thread, and the direction of the external thread is opposite.

Preferably, the surface of the pinching rod is glued with a rubber sleeve, and the thickness of the rubber sleeve is three millimeters.

Preferably, the locking mechanism comprises a second abutting groove, the second abutting groove is symmetrically formed in the inner wall of the second fixing piece, the elastic groove is symmetrically formed in the surface of the second anti-winding plate, the end, away from the elastic groove, of the elastic groove is inserted with an arc abutting block, one end, close to the arc abutting block, of the arc abutting block is fixedly connected with one end of a third spring, the other end of the third spring is fixedly connected with the inner wall of the elastic groove, and the end, away from the arc abutting block, of the arc abutting block extends to the inside of the second abutting groove.

Compared with the prior art, the invention has the beneficial effects that: the device can prevent the tape main body from winding and knotting when the tape main body is withdrawn, can clean the surface of the tape main body, and improves the tidiness clamping plate of the tape main body.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic sectional elevation view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2A of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B in accordance with the present invention;

FIG. 5 is a schematic side sectional view of a second fixing member and a slot according to the present invention;

FIG. 6 is an enlarged partial view taken at C of FIG. 5 according to the present invention;

FIG. 7 is a schematic sectional side view of the first fixing member, the pressing groove and the moving groove of the present invention;

FIG. 8 is a schematic top sectional view of the first fixing member, the pressing groove and the rotating groove of the present invention;

FIG. 9 is a schematic sectional side view of the second fixing element, the first square groove and the threaded sleeve according to the present invention.

In the figure: 100. a leather tape measure as a whole; 110. a leather tape main body; 111. a tape measure body; 200. a fixed mechanism assembly; 210. a first fixing member; 211. a fixing plate; 212. a strong magnet; 213. a wheel groove; 214. a wheel; 215. pressing a groove; 216. briquetting; 217. a first spring; 218. a telescopic rod; 219. a clamping plate; 220. Collecting a groove; 221. a threaded hole; 222. a threaded rod; 223. pressing a plate; 224. a first resisting groove; 225. a moving groove; 226. fixing the rod; 227. pushing the workpiece; 228. a second spring; 229. rotating the groove; 230. a first rotating lever; 300. An anti-winding cleaning mechanism assembly; 310. a second fixing member; 311. a slot; 312. a first anti-wind plate; 313. a first cleaning tank; 314. a first square groove; 315. a square bottom plate; 316. a second anti-wind plate; 317. a second cleaning tank; 318. a second square groove; 319. a second rotating rod; 320. pinching a rod; 321. a threaded sleeve; 322. cleaning the workpiece; 323. a second resisting groove; 324. a spring slot; 325. a cambered surface resisting block; 326. a third spring; 327. and moving the square block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, an embodiment of the present invention is shown:

a portable reinforcing steel bar length testing device for engineering detection comprises a leather measuring tape total 100, wherein the leather measuring tape total 100 comprises a leather measuring tape main body 110, a leather measuring tape main body 111 is wound inside the leather measuring tape main body 110, one end of the leather measuring tape main body 111 extends to the right end of the leather measuring tape main body 110, a fixing mechanism assembly 200 is arranged at the right end of the leather measuring tape main body 110, the fixing mechanism assembly 200 comprises a first fixing piece 210, one end of the leather measuring tape main body 111 penetrates through the first fixing piece 210 and extends to the right end of the first fixing piece 210, a fixing plate 211 is hinged to the bottom end of the first fixing piece 210, a strong magnet 212 is fixedly connected to the bottom end of the fixing plate 211, a pressing groove 215 is formed in the top end of the first fixing piece 210, a pressing block 216 is inserted into the top end of the pressing groove 215, a first spring 217 is fixedly connected to the bottom end of the pressing block 216, the bottom end of the first spring 217 is fixedly connected to the inner wall of the pressing groove 215, two groups of telescopic rods 218 are arranged inside the pressing groove 215, and the end of the telescopic rod 218 close to each other at the rear end is hinged to the surface of the pressing block 216, the first fixing member 210 is internally provided with a rotating groove 229, the left side and the right side of the rotating groove 229 are both communicated with the pressing groove 215, the rotating groove 229 is internally provided with a first rotating rod 230, both ends of the first rotating rod 230 extend into the pressing groove 215 through the rotating groove 229 and are fixedly connected with the surface of the telescopic rod 218, the first fixing member 210 is internally provided with a clamping plate 219, the rear end of the clamping plate 219 is fixedly connected with the front end of the telescopic rod 218, the inner wall at the bottom end of the clamping plate 219 is provided with a receiving groove 220, the inner wall at the top end of the receiving groove 220 is provided with a threaded hole 221 in a penetrating manner, the pressing plate 223 is arranged inside the receiving groove 220, the top end of the threaded hole 221 is inserted with a threaded rod 222, the bottom end of the threaded rod 222 extends into the receiving groove 220 through the threaded hole 221 and is connected with the pressing plate 223 through an embedded bearing, the front end of the clamping plate 219 is provided with a first abutting groove 224, the surface of the first fixing part 210 is provided with a moving groove 225, the inside of the moving groove 225 is provided with a fixing rod 226, the rear end of the fixing rod 226 passes through the moving groove 225 and extends to the inside of the first abutting groove 224, the top end of the moving groove 225 is inserted with a pushing piece 227, the bottom end of the pushing piece 227 is fixedly connected with the surface of the fixing rod 226, the front end of the fixing rod 226 is fixedly connected with a second spring 228, the front end of the second spring 228 is fixedly connected with the inner wall of the moving groove 225, the right end of the leather tape main body 110 is provided with an anti-winding cleaning mechanism assembly 300, the anti-winding cleaning mechanism assembly 300 comprises a second fixing part 310, the bottom end of the right side of the leather tape main body 110 is fixedly connected with a second fixing part 310, the right end of the second fixing part 310 is provided with an insertion groove 311, the right end of the insertion groove 311 is inserted with a first anti-winding plate 312, the top end of the first anti-winding plate 312 is provided with a first cleaning groove 313 in a penetrating manner, the top end of the insertion groove 311 is provided with two groups of first grooves 314, a square bottom plate 315 is placed on the inner wall of the bottom end of the first square groove 314, a second anti-winding plate 316 is arranged at the top end of the slot 311, the left end of the second anti-winding plate 316 is positioned inside the second fixing member 310, a second cleaning groove 317 is formed in the bottom end of the second anti-winding plate 316 in a penetrating manner, two groups of second square grooves 318 are formed in the top end of the second anti-winding plate 316 in a penetrating manner, a second rotating rod 319 is inserted into the top end of the second square grooves 318, the bottom end of the second rotating rod 319 penetrates through the second square grooves 318 to extend into the first square groove 314 and is connected with the top end of the square bottom plate 315 through an embedded bearing, a pinching rod 320 is fixedly connected to the top end of the second rotating rod 319, two groups of thread sleeves 321 are sleeved on the surface of the second rotating rod 319, the two groups of thread sleeves 321 are positioned inside the first square grooves 314, the two groups of thread sleeves 321 are positioned inside the second square grooves 318, cleaning members 322 are arranged inside the first cleaning groove 313 and the second cleaning groove 317, the front end and the rear end of one group of cleaning pieces 322 pass through the first cleaning groove 313 and extend into the first square groove 314, the front end and the rear end of the other group of cleaning pieces 322 pass through the second cleaning groove 317 and extend into the second square groove 318, the front ends of the cleaning pieces 322 are connected with the threaded sleeve 321 through embedded bearings, the rear ends of the cleaning pieces 322 are connected with the movable blocks 327 through the embedded bearings, the movable blocks 327 are respectively positioned in the second square groove 318 and the first square groove 314, and a locking mechanism is arranged in the second anti-winding plate 316;

further, the inner wall of the bottom end of the first fixing member 210 is uniformly provided with wheel grooves 213, the wheel grooves 213 are internally connected with wheels 214 through embedded bearings, and when the tape main body 111 moves inside the first fixing member 210, the tape main body 111 drives the wheels 214 to rotate, so that the tape main body 111 can conveniently move inside the first fixing member 210;

further, one side of the bottom end of the engaging plate 219 is inclined, and one side of the top end of the fixing rod 226 is inclined, so that the fixing rod 226 can move into the moving groove 225 after the inclined surface of the engaging plate 219 and the inclined surface of the fixing rod 226 are abutted against each other;

further, a first rubber pad is glued at the bottom end of the pressing plate 223, the thickness of the first rubber pad is three millimeters, and the pressing plate 223 capable of being used for ice surface of the first rubber pad is directly contacted with the tape main body 111 and can protect the tape main body 111;

furthermore, the top end of the pushing piece 227 is provided with anti-slip lines, the anti-slip lines are all triangular, and the anti-slip lines can increase the friction force between the hand of a user and the pushing piece 227, so that the user can push the pushing piece 227 conveniently;

further, a second rubber pad is glued to the inner wall of the slot 311, the inner wall of the second rubber pad is attached to the surface of the first anti-winding plate 312, the second rubber pad can fill a gap between the slot 311 and the first anti-winding plate 312, and the friction force between the slot 311 and the first anti-winding plate 312 can be increased;

further, the surface of the second rotating rod 319 is provided with an external thread, and the directions of the external thread are opposite, when the second rotating rod 319 rotates, the thread sleeve 321 can move to the same or opposite directions simultaneously under the action of the opposite external thread;

furthermore, rubber sleeves are glued on the surfaces of the pinching levers 320, the thickness of each rubber sleeve is three millimeters, and the rubber sleeves can increase the friction force between the hands of a user and the pinching levers 320, so that the user can rotate the pinching levers 320 conveniently;

further, the locking mechanism includes a second abutting groove 323, the inner wall of the second fixing member 310 is symmetrically provided with the second abutting groove 323, the surface of the second anti-winding plate 316 is symmetrically provided with elastic grooves 324, the ends of the elastic grooves 324 far away from each other are all inserted with arc abutting blocks 325, the ends of the arc abutting blocks 325 near to each other are all fixedly connected with one end of a third spring 326, the other end of the third spring 326 is all fixedly connected with the inner wall of the elastic grooves 324, and the ends of the arc abutting blocks 325 far away from each other extend into the second abutting groove 323, so that the user can conveniently assemble and disassemble the second anti-winding plate 316.

When the reinforcing steel bar length testing device is used, firstly, a user pushes the pushing piece 227, the pushing piece 227 drives the fixing rod 226 to move, the moving fixing rod 226 compresses the second spring 228, when one end of the fixing rod 226 is no longer positioned in the first abutting groove 224, the user presses the pressing block 216 downwards, the moving pressing block 216 drives one end of the telescopic rod 218 to move downwards, the moving pressing block 216 compresses the first spring 217, the telescopic rod 218 is also extended at the moment, the telescopic rod 218 drives the first rotating rod 230 to rotate in the rotating groove 229, the other end of the telescopic rod 218 moves upwards and drives the clamping plate 219 to move, the clamping plate 219 does circular motion at the moment, when the clamping plate 219 is opened, the user releases the pushing piece 227 at the moment, the fixing rod 226 and the pushing piece 227 reset under the self-resilience force of the second spring 228, and the user can place one end of the tape main body 111 into the first spring 210, then, the user loosens the pressing block 216, at this time, the pressing block 216 is reset under the self-resilience force of the first spring 217, at this time, the telescopic rod 218 is shortened to reset, the telescopic rod 218 drives the engaging plate 219 to reset, after the inclined surface of the engaging plate 219 and the inclined surface of the fixing rod 226 are mutually abutted, the fixing rod 226 is moved towards the inside of the moving groove 225, the second spring 228 is compressed, when the first abutting groove 224 is moved to the position of the fixing rod 226, the fixing rod 226 is reset under the self-resilience force of the second spring 228, and at this time, the fixing is completed;

then, the user rotates the threaded rod 222, the threaded rod 222 can make the threaded rod 222 move downwards under the action of the threaded hole 221, the moving threaded rod 222 drives the pressing plate 223 to move downwards, then, the user installs a plurality of sets of fixing mechanism assemblies 200 in the same manner, and then the user engages the strong magnet 212 at the bottom end of the fixing plate 211 with the reinforcing bar, the user places a set of fixing mechanism assemblies 200 at a suitable position, and also engages the strong magnet 212 at the bottom end of the fixing plate 211 with the reinforcing bar, and then after the user tightens the tape main body 111, the user rotates the threaded rod 222, the threaded rod 222 can move downwards under the action of the threaded hole 221, the tape measure main body 111 is fixed through the pressing plate 223, a user can install a plurality of groups of fixing mechanism assemblies 200 according to the actual situation of the user, and the user can take down the fixing mechanism assemblies 200 when the user finishes measuring, or the user does not finish measuring;

then, the user inserts the first anti-winding plate 312 into the slot 311, inserts the square bottom plate 315 at the bottom end of the second rotating rod 319 into the first square groove 314, at this time, the group of cleaning members 322, the thread bushing 321, and the moving block 327 are located inside the first square groove 314, then the user places the tape main body 111 between the two groups of cleaning members 322, then the user places the second anti-winding plate 316 on the top end of the slot 311, after the arc surface of the arc surface abutting block 325 abuts against the inside of the second fixing member 310, the arc surface abutting block 325 moves towards the inside of the elastic groove 324, compresses the third spring 326, and after the arc surface abutting block 325 moves to the position of the second abutting groove 323, the arc surface abutting block 325 resets under the self-resilience force of the third spring 326, and at this time, the fixing is completed;

finally, the user rotates the pinching lever 320, the pinching lever 320 drives the second rotating lever 319 to rotate, the second rotating lever 319 can enable the threaded sleeve 321 to move in the same direction, the user can adjust the distance between the two groups of cleaning pieces 322, so that the cleaning pieces 322 are close to the tape main body 111, when the user withdraws the tape main body 111 through the tape main body 110, the right ends of the first anti-winding plate 312 and the second anti-winding plate 316 are close to each other, the tape main body 111 moves between the first anti-winding plate 312 and the second anti-winding plate 316, the moved tape main body 111 drives the two groups of cleaning pieces 322 to rotate, the rotated cleaning pieces 322 clean the two sides of the tape main body 111, and when the user is used up, the anti-winding cleaning mechanism assembly 300 can be removed through the above operations.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides an engineering detects with portable reinforcing bar length test device, includes leather tape totality (100), its characterized in that: the leather measuring tape assembly (100) comprises a leather measuring tape main body (110), the leather measuring tape main body (111) is wound inside the leather measuring tape main body (110), one end of the leather measuring tape main body (111) extends to the right end of the leather measuring tape main body (110), a fixing mechanism assembly (200) is arranged at the right end of the leather measuring tape main body (110), the fixing mechanism assembly (200) comprises a first fixing piece (210), one end of the leather measuring tape main body (111) penetrates through the first fixing piece (210) to extend to the right end of the first fixing piece (210), a fixing plate (211) is hinged to the bottom end of the first fixing piece (210), a strong magnet (212) is fixedly connected to the bottom end of the fixing plate (211), a pressing groove (215) is formed in the top end of the first fixing piece (210), a pressing block (216) is inserted into the top end of the pressing groove (215), and a first spring (217) is fixedly connected to the bottom end of the pressing block (216), the bottom end of the first spring (217) is fixedly connected with the inner wall of the pressing groove (215), two groups of telescopic rods (218) are arranged inside the pressing groove (215), one ends, close to each other, of the rear ends of the telescopic rods (218) are hinged to the surface of the pressing block (216), a rotating groove (229) is formed inside the first fixing piece (210), the left side and the right side of the rotating groove (229) are communicated with the pressing groove (215), a first rotating rod (230) is arranged inside the rotating groove (229), two ends of the first rotating rod (230) penetrate through the rotating groove (229) to extend into the pressing groove (215) and are fixedly connected with the surface of the telescopic rod (218), a clamping plate (219) is arranged inside the first fixing piece (210), the rear end of the clamping plate (219) is fixedly connected with the front end of the telescopic rod (218), a retracting groove (220) is formed in the inner wall of the bottom end of the clamping plate (219), the inner wall of the top end of the retraction groove (220) is provided with a threaded hole (221) in a penetrating manner, a pressing plate (223) is arranged inside the retraction groove (220), the top end of the threaded hole (221) is inserted with a threaded rod (222), the bottom end of the threaded rod (222) penetrates through the threaded hole (221) to extend into the retraction groove (220) and is connected with the pressing plate (223) through an embedded bearing, the front end of the clamping plate (219) is provided with a first abutting groove (224), the surface of the first fixing piece (210) is provided with a moving groove (225), a fixing rod (226) is arranged inside the moving groove (225), the rear end of the fixing rod (226) penetrates through the moving groove (225) to extend into the first abutting groove (224), the top end of the moving groove (225) is inserted with a pushing piece (227), the bottom end of the pushing piece (227) is fixedly connected with the surface of the fixing rod (226), and the front end of the fixing rod (226) is fixedly connected with a second spring (228), the front end of the second spring (228) is fixedly connected with the inner wall of the movable groove (225), the right end of the leather measuring tape main body (110) is provided with an anti-winding cleaning mechanism assembly (300), the anti-winding cleaning mechanism assembly (300) comprises a second fixing piece (310), the bottom end of the right side of the leather measuring tape main body (110) is fixedly connected with the second fixing piece (310), the right end of the second fixing piece (310) is provided with an insertion groove (311), the right end of the insertion groove (311) is inserted with a first anti-winding plate (312), the top end of the first anti-winding plate (312) is penetrated and provided with a first cleaning groove (313), the top end of the insertion groove (311) is provided with two groups of first square grooves (314), a square bottom plate (315) is placed on the inner wall of the bottom end of the first square groove (314), the top end of the insertion groove (311) is provided with a second anti-winding plate (316), and the left end of the second anti-winding plate (316) is positioned inside the second fixing piece (310), a second cleaning groove (317) is formed in the bottom end of the second anti-winding plate (316) in a penetrating manner, two groups of second square grooves (318) are formed in the top end of the second anti-winding plate (316) in a penetrating manner, second rotating rods (319) are inserted into the top ends of the second square grooves (318), the bottom ends of the second rotating rods (319) extend into the first square grooves (314) through the second square grooves (318) and are connected with the top ends of the square bottom plates (315) through embedded bearings, pinching rods (320) are fixedly connected to the top ends of the second rotating rods (319), two groups of thread sleeves (321) are sleeved on the surface of the second rotating rods (319), the two groups of thread sleeves (321) are located inside the first square grooves (314), the two groups of thread sleeves (321) are located inside the second square grooves (318), cleaning pieces (322) are arranged inside the first cleaning groove (313) and the second cleaning groove (317), the front end and the rear end of the cleaning piece (322) are connected with a movable block (327) through an embedded bearing, the movable block (327) is respectively located in the second square groove (318) and the first square groove (314), and a locking mechanism is arranged in the second anti-winding plate (316).

2. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: the inner wall of first mounting (210) bottom has evenly seted up race (213), the inside of race (213) all is connected with wheel (214) through embedded bearing.

3. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: one side of the bottom end of the clamping plate (219) is in an inclined plane shape, and one side of the top end of the fixing rod (226) is in an inclined plane shape.

4. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: the bottom end of the pressing plate (223) is glued with a first rubber pad, and the thickness of the first rubber pad is three millimeters.

5. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: the top end of the pushing piece (227) is provided with anti-skid lines which are all triangular.

6. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: and a second rubber pad is glued on the inner wall of the slot (311), and the inner wall of the second rubber pad is attached to the surface of the first anti-winding plate (312).

7. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: the surface of the second rotating rod (319) is provided with an external thread, and the direction of the external thread is opposite.

8. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: the surface of the pinching rod (320) is glued with a rubber sleeve, and the thickness of the rubber sleeve is three millimeters.

9. The portable reinforcing steel bar length testing device for engineering detection as claimed in claim 1, wherein: the locking mechanism comprises a second abutting groove (323), the inner wall of the second fixing piece (310) is symmetrically provided with the second abutting groove (323), the surface of the second anti-winding plate (316) is symmetrically provided with elastic grooves (324), one ends, far away from each other, of the elastic grooves (324) are inserted with arc abutting blocks (325), one ends, close to each other, of the arc abutting blocks (325) are fixedly connected with one end of a third spring (326), the other ends of the third spring (326) are fixedly connected with the inner wall of the elastic grooves (324), and one ends, far away from each other, of the arc abutting blocks (325) extend to the inside of the second abutting groove (323).

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