阅读说明：本技术 一种新型钢卷尺 (Novel steel tape ) 是由 姜子华 赵俊鹏 蒋尹龙 于 2020-06-02 设计创作，主要内容包括：本发明涉及一种新型钢卷尺,其包括中空的外壳、设置在外壳中部的转轴、驱动转轴转动的转动杆以及收卷在转轴周面上的的尺条,所述外壳内设置有对收卷后的尺条进行夹紧的若干夹紧组件,所述夹紧组件包括开设在外壳内部相对侧壁上的两个滑移槽,所述滑移槽沿收卷后尺条的径向排布,所述滑移槽滑移连接有滑移块,两个所述滑移块相对侧壁之间固接有连接轴,所述连接轴上同轴套接有一滚动筒,所述滚动筒与连接轴转动连接,所述滑移槽内设置有顶持弹簧,所述顶持弹簧的一端与滑移块背离尺带的侧壁固接,顶持弹簧的另一端与滑移槽远离尺条的侧壁固定连接。本发明的优点是：可使得钢卷尺的收卷更加紧密,降低钢卷尺产生松散的可能性。(The invention relates to a novel steel tape, which comprises a hollow shell, a rotating shaft arranged in the middle of the shell, a rotating rod driving the rotating shaft to rotate and a ruler strip wound on the peripheral surface of the rotating shaft, wherein a plurality of clamping components for clamping the wound ruler strip are arranged in the shell, each clamping component comprises two sliding grooves formed in opposite side walls in the shell, the sliding grooves are arranged in the radial direction of the wound ruler strip, each sliding groove is connected with a sliding block in a sliding mode, a connecting shaft is fixedly connected between the two opposite side walls of the sliding blocks, a rolling barrel is coaxially sleeved on the connecting shaft and rotatably connected with the connecting shaft, a jacking spring is arranged in each sliding groove, one end of the jacking spring is fixedly connected with the side wall of the sliding block, which deviates from the ruler strip, and the other end of the jacking spring is fixedly connected with the side wall of the sliding groove, which is far away. The invention has the advantages that: the winding of the steel tape can be more compact, and the possibility of looseness of the steel tape is reduced.)

1. The utility model provides a novel steel tape, includes hollow shell (1), sets up pivot (11), drive pivot (11) pivoted dwang (12) and the chi strip (13) of rolling on pivot (11) global in shell (1) middle part, its characterized in that: a plurality of clamping components (2) for clamping the coiled ruler strip (13) are arranged in the shell (1), the clamping component (2) comprises two sliding grooves (21) which are arranged on the opposite side walls in the shell (1), the sliding grooves (21) are arranged along the radial direction of the coiled rear ruler strip (13), the sliding grooves (21) are connected with sliding blocks (22) in a sliding manner, a connecting shaft (23) is fixedly connected between the opposite side walls of the two sliding blocks (22), a rolling cylinder (24) is coaxially sleeved on the connecting shaft (23), the rolling cylinder (24) is rotationally connected with the connecting shaft (23), a jacking spring (25) is arranged in the sliding groove (21), one end of the jacking spring (25) is fixedly connected with the side wall of the sliding block (22) departing from the ruler belt, and the other end of the jacking spring (25) is fixedly connected with the side wall of the sliding groove (21) far away from the ruler strip (13).

2. A new steel tape measure according to claim 1, wherein: the cross section of the sliding groove (21) is arranged in a T shape.

3. A new steel tape measure according to claim 2, wherein: be provided with fixture (3) that is used for extension chi strip (13) when chi strip (13) rolling in shell (1), fixture (3) is including setting up frame (31) that slides in shell (1), frame (31) that slides has slider (311) towards one side lateral wall rigid coupling of casing, set up spout (32) that hold slider (311) and slide on the inside wall of shell (1), radial arranging of chi strip (13) is followed in rolling in spout (32), it is connected with grip block (34) to slide in frame (31), it holds grip block (34) and follows telescopic spring (35) that chi strip (13) slided behind the rolling to be provided with the top on the lateral wall that frame (31) and grip block (34) are parallel, chi strip (13) deviate from telescopic spring (35) and slide between frame (31) from grip block (34), be provided with drive slider (311) in spout (32) and carry out the power that slides along the length direction of spout (32) An assembly (33).

4. A new steel tape measure according to claim 3, wherein: the number of the telescopic springs (35) is two.

5. A new steel tape measure according to claim 3, wherein: the power component (33) comprises a screw rod (331) arranged in the sliding groove (32), the screw rod (331) penetrates through the side wall of the sliding block (311) and is opposite to the thread direction of the sliding block (311), two ends of the screw rod (331) are respectively connected with the side wall of the sliding groove (21) in a rotating mode, a driven bevel gear (332) is fixedly connected to the side wall of the screw rod (331) penetrating through the sliding groove (32), a driving bevel gear (333) meshed with the driven gear (441) is fixedly connected to the rotating shaft (11), and when the rotating shaft (11) rotates to roll the ruler strip (13), the screw rod (331) can drive the sliding frame (31) to move towards the direction of the ruler strip (13) far away from the rolled ruler strip.

6. A new steel tape measure according to claim 3, wherein: the lateral wall of the sliding frame (31) is provided with sliding limiting grooves (411) (312) with cross sections arranged in a T shape, the sliding limiting grooves (411) (312) are connected with sliding limiting blocks (341) in a sliding mode, the sliding limiting blocks (341) are arranged on the lateral wall of the clamping plate (34), the clamping plate (34) deviates from the lateral wall of the sliding limiting blocks (341) and is fixedly connected with a sliding rod (36), the lateral wall of the sliding frame (31) is fixedly connected with fixing rods (37) arranged in parallel with the sliding rod (36), the fixing rods (37) are arranged on the lateral wall of the sliding frame (31) far away from the side wall of the ruler strip (13), the sliding frame (31) is provided with waist-shaped through holes (38) (16) for the sliding rod (36) to slide, the lateral wall of the shell (1) is provided with waist-shaped long holes (39) for the fixing rods (37) and the sliding rod (36) to slide, and the waist-shaped long holes (39) are arranged in, the end part of the sliding rod (36) is provided with a limiting piece (361) which fixes the sliding rod (36) and the fixing rod (37) mutually.

7. A novel steel tape measure according to claim 6, wherein: restriction piece (361) and slide bar (36) set up perpendicularly, and restriction piece (361) and slide bar (36) rotate and are connected, joint interface (3611) have been seted up to the lateral wall of restriction piece (361), but joint interface (3611) joint is on the global of dead lever (37).

Technical Field

The invention relates to the technical field of measuring and detecting equipment, in particular to a novel steel tape.

Background

Steel tape measures are common tools for construction and finishing. Steel tapes can be divided into: self-winding tape measures and brake-type tape measures. Steel tape measures are used to measure directly the object itself or the linear distance between objects. When the measuring tape is used, the steel measuring tape is firstly pulled out of the measuring tape roll, the hook of the measuring tape roll is hung at the initial end of a measured object, then the measuring tape is pulled to the terminal end of the measured object, and the current parameter of the steel measuring tape is the specific distance between the initial end and the terminal end of the measured object. Luban ruler-geomancy ruler-venturi scale also belong to steel tape measures. The steel tape is a common tool for building and decoration, and the fiber tape is a tape measure which is commonly seen by people, and many people say that the tape measure is a cloth tape, and a waistline tape, a tailor tape and a clothes measuring tape belong to the same type. The southern and hong Kong areas of China are often called flexible rule or pull rule. The material of the tape measure is PVC plastic and glass fiber, and the glass fiber can prevent the tape measure from being elongated in the use process.

The invention discloses a prior portable steel tape capable of being manually and automatically rolled up, such as the invention with the authorized publication number of CN207649479U, which comprises a handle, wherein a switch and a charging interface are arranged on the front surface wall of the handle, the switch is positioned at one side of the charging interface, a storage battery is arranged at the bottom end inside the handle, a steel tape movable clamping plate body is arranged below the handle, a rotating rod is arranged on one side surface of the steel tape movable clamping plate body, the invention is provided with a motor, an internal driving gear and a movable driven gear, the rotating shaft body can be driven to rotate by the operation of the motor, so that the steel tape can be automatically rolled up, the use of personnel is more convenient, when the storage battery is not electrified, the user can press the end, connected with the steel tape movable clamping plate body, of the rotating rod downwards in a direction perpendicular to the steel tape movable clamping plate body, so that the gear of the movable driven gear is embedded on the gear of the, the rotating shaft body can be manually rotated to roll up the steel tape.

The above prior art solutions have the following drawbacks: above-mentioned steel tape is when the rolling, and steel tape movable clamp plate body does not carry out spacing fixed to the steel tape, and the lateral wall of the steel tape contact each other after the rolling very easily produces great interval, becomes loose, and for a long time in the past, the steel tape very easily damages, and urgent need be solved.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide a novel steel tape, which has the advantages that: the winding of the steel tape can be more compact, and the possibility of looseness of the steel tape is reduced.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a novel steel tape, includes hollow shell, sets up pivot, drive pivot pivoted dwang and the chi strip of rolling on the pivot is global at shell middle part, be provided with in the shell and carry out tight a plurality of clamping components of clamp to the chi strip after the rolling, clamping components is including seting up two grooves of sliding on the inside relative lateral wall of shell, the groove of sliding is arranged along the radial of chi strip after the rolling, the groove of sliding slides and is connected with the sliding block, two the rigid coupling has the connecting axle between the relative lateral wall of sliding block, a roll section of thick bamboo has coaxially cup jointed on the connecting axle, a roll section of thick bamboo rotates with the connecting axle to be connected, it holds the spring to slide the inslot to be provided with the top, the one end that holds the spring and the sliding block deviate from the lateral wall rigid coupling of chi area, and the lateral wall fixed.

By adopting the technical scheme, when the ruler strip is rolled by a worker, the rotating shaft can be driven to rotate through the rotating rod, and the ruler strip can enter the shell from the through hole under the driving of the rotating shaft; at the moment, the jacking spring can jack the sliding blocks to move towards the direction of the ruler strip, and then the connecting shaft between the two sliding blocks drives the rolling barrel to move towards the rolled ruler strip, so that the rolling barrel always props against the side wall of the ruler strip, and when the ruler strip is stored and pulled out of the shell, the rolling barrel can synchronously rotate along with the ruler strip, so that the friction resistance between the rolling barrel and the ruler strip is reduced; the coiled ruler strip can be tightly attached together under the limitation of the clamping assembly, so that the ruler strip is coiled more tightly, and the possibility of looseness of the steel tape is reduced.

The present invention in a preferred example may be further configured to: the cross section of the sliding groove is arranged in a T shape.

Through adopting above-mentioned technical scheme, can be with the stable restriction of top-holding spring in the inslot that slides, make the sliding block more stable in the inslot that slides simultaneously.

The present invention in a preferred example may be further configured to: the utility model discloses a flexible ruler strip winding device, including casing, be provided with the fixture that is used for tensile ruler strip when the chi strip rolling in the casing, fixture is including setting up the frame that slides in the casing, the frame that slides has the slider towards one side lateral wall rigid coupling of casing, set up the spout that holds the slider and slide on the inside wall of casing, the spout is arranged along the radial of rolling back ruler strip, the frame that slides internal slipping is connected with the grip block, it holds the expansion spring that the grip block slided towards rolling back ruler strip to be provided with the top on the parallel lateral wall of frame and grip block to slide, the ruler strip is followed the grip block and is backed away expansion spring and slide and pass between the frame, be provided with the power component that the drive slider slided along.

By adopting the technical scheme, when a worker winds the ruler strip, the diameter of the wound ruler strip is gradually increased along with the gradual winding of the ruler strip, and the worker can drive the sliding frame to move in the direction far away from the ruler strip through the power assembly; at the moment, the clamping plate can move towards the side wall of the sliding frame under the supporting of the telescopic spring, so that the ruler strip is clamped between the sliding frame and the clamping plate, and then a reverse stretching force is given to the ruler strip during rolling, so that the ruler strip is rolled in the rotating shaft more tightly.

The present invention in a preferred example may be further configured to: the telescopic spring is provided with two.

Through adopting above-mentioned technical scheme, further promote the clamping-force of grip block to the chi strip to promote the tensile effect to the chi strip.

The present invention in a preferred example may be further configured to: the power component comprises a screw rod arranged in the sliding groove, the screw rod penetrates through the side wall of the sliding block and is opposite to the thread direction of the sliding block, two ends of the screw rod are respectively connected with the side wall of the sliding groove in a rotating mode, a driven bevel gear is fixedly connected to the side wall of the screw rod penetrating through the sliding groove, a driving bevel gear meshed with the driven bevel gear is fixedly connected to the rotating shaft, and when the rotating shaft rotates to roll the ruler strip, the screw rod can drive the sliding frame to move towards the direction away from the ruler strip after rolling.

Through adopting above-mentioned technical scheme, when the staff was at the rolling chi strip, when rotating the pivot through the dwang and rotating, the rotation of pivot can drive bevel gear and rotate, drive bevel gear's rotation can drive driven bevel gear and rotate, and then drive the screw rod and rotate, the rotation of screw rod can drive the slider and move along the length direction of spout to realize sliding the frame and follow the chi strip rolling and carry out synchronous slip, and then keep the stable centre gripping of grip block and sliding the frame to the chi strip.

The present invention in a preferred example may be further configured to: the utility model discloses a slide structure, including the frame that slides, the lateral wall of frame that slides sets up the spacing groove that slides that the cross section sets up for T shape, the spacing inslot cunning that slides is connected with the stopper that slides, the stopper setting that slides is on the lateral wall of grip block, the grip block is carried away from the lateral wall of the stopper that slides on and is had a slide bar, the lateral wall rigid coupling of the frame that slides has the dead lever with slide bar parallel arrangement, the dead lever is located the lateral wall setting that the chi strip was kept away from to the frame that slides, set up the waist shape through-hole that is used for the slide bar to slide on the frame that slides, set up the waist shape slot hole that supplies dead lever and slide bar to slide on the lateral wall of.

Through adopting above-mentioned technical scheme, when pulling out the through-hole with the chi strip, can remove along the length direction of the spacing groove that slides under the restriction of the stopper that slides through the slide bar pulling grip block earlier, remove the grip block to the direction of keeping away from the chi strip, will slide between pole and the dead lever reciprocal anchorage through the restriction spare afterwards, and then remove the grip block to the centre gripping effort of chi strip to make things convenient for the staff to slide out the shell with the chi strip and measure work.

The present invention in a preferred example may be further configured to: the limiting piece is perpendicular to the sliding rod, the limiting piece is connected with the sliding rod in a rotating mode, a clamping interface is formed in the side wall of the limiting piece, and the clamping interface can be clamped on the circumferential face of the fixing rod.

Through adopting above-mentioned technical scheme, slide the pole to have suitable interval with the dead lever after, expanding spring can hold the elastic deformation who takes place the shrink down in the top of grip block this moment, then through rotating the restriction piece, with the joint interface joint of restriction piece on global of dead lever, then loosen the pole of sliding, expanding spring holds the top of grip block this moment for keep stable interval under the restriction of restriction piece between pole of sliding and the dead lever, make things convenient for the use of chi strip.

In summary, the invention has the following beneficial technical effects:

1. the clamping assembly is arranged, so that the coiled ruler strip can be tightly attached together under the limitation of the clamping assembly, the ruler strip is coiled more tightly, and the possibility of looseness of the steel tape is reduced;

2. the clamping mechanism is arranged to apply a reverse drawing force to the ruler strip during winding, so that the ruler strip is wound on the rotating shaft more tightly;

3. slide the pole to have suitable interval with the dead lever after, expanding spring can hold the elastic deformation who takes place the shrink down in the top of grip block this moment, then through rotating the restriction piece, with the joint interface joint of restriction piece global on the dead lever, then loosen the pole of sliding, expanding spring holds the top of grip block this moment for keep stable interval under the restriction of restriction piece between pole and the dead lever slides, makes things convenient for the use of chi strip.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram showing the internal structure of the housing.

Fig. 3 is a partial sectional view showing the structure of the clamping assembly.

Fig. 4 is a partial sectional view showing a clamping mechanism.

Fig. 5 is a schematic structural view showing a slide frame.

Fig. 6 is a schematic structural diagram showing a slip stopper.

Fig. 7 is a partial sectional view of the structure embodying the cleaning mechanism.

Fig. 8 is a schematic view showing the fitting relationship between the cover and the operation hole.

In the figure, 1, a housing; 11. a rotating shaft; 12. rotating the rod; 13. a ruler strip; 131. a pull ring; 14. rotating the disc; 15. a handle; 16. a through hole; 17. a yielding groove; 18. an operation hole; 2. a clamping assembly; 21. a sliding groove; 22. a sliding block; 23. a connecting shaft; 24. a rolling cylinder; 25. a jacking spring; 3. a clamping mechanism; 31. a sliding frame; 311. a slider; 312. a sliding limiting groove; 32. a chute; 33. a power assembly; 331. a screw; 332. a driven bevel gear; 333. a drive bevel gear; 34. a clamping plate; 341. a sliding limiting block; 35. a tension spring; 36. a slide bar; 361. a limiting member; 3611. a card interface; 37. fixing the rod; 38. a kidney-shaped through hole; 39. a waist-shaped long hole; 4. a cleaning mechanism; 41. a rotating shaft; 411. a limiting groove; 42. a cleaning cartridge; 43. a connecting assembly; 431. a fixed cylinder; 4311. a limiting strip; 44. a drive assembly; 441. a driven gear; 442. a driving gear; 443. a drive motor; 444. a protective cover; 4441. heat dissipation holes; 5. installing a bolt; 6. sealing the cover; 61. and (4) mounting the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the novel steel tape disclosed by the present invention comprises a hollow housing 1, a rotating shaft 11 disposed in the middle of the housing 1, a rotating rod 12 for driving the rotating shaft 11 to rotate, and a tape 13 (not drawn to scale) wound around the circumference of the rotating shaft 11; one end of the rotating shaft 11 extends out of the side wall of the shell 1 and is fixedly connected with a rotating disc 14, the rotating rod 12 is perpendicular to the rotating disc 14, and the rotating rod 12 is fixedly connected with the rotating disc 14; the cross section of shell 1 is the cross setting, and the upper end rigid coupling of shell 1 has handle 15, and the lower extreme of shell 1 is sharp toper setting, and shell 1 is close to most advanced lateral wall and offers the through-hole 16 that is used for chi strip 13 business turn over shell 1, and the tip rigid coupling that stretches out through-hole 16 of chi strip 13 has the pull ring 131 that restricts the chi strip 13 tip and get into through-hole 16.

Referring to fig. 2 and 3, a plurality of clamping assemblies 2 for clamping the coiled ruler strip 13 are arranged in the housing 1, in this embodiment, one clamping assembly 2 is arranged, the clamping assembly 2 is located on a side wall of the housing 1, which is fixedly connected with the handle 15, the clamping assembly 2 comprises two sliding grooves 21 which are parallelly arranged on opposite side walls in the housing 1, the sliding grooves 21 are radially arranged along the coiled ruler strip 13, and the cross section of each sliding groove 21 is in a T-shaped arrangement; the sliding groove 21 is connected with a sliding block 22 in a sliding mode, the sliding block 22 can slide along the length direction of the sliding groove 21, a connecting shaft 23 is fixedly connected between the two opposite side walls of the sliding block 22, the connecting shaft 23 is perpendicular to the length direction of the sliding groove 21, a rolling barrel 24 is coaxially sleeved on the connecting shaft 23 and rotatably connected with the connecting shaft 23, a jacking spring 25 is arranged in the sliding groove 21, one end of the jacking spring 25 is fixedly connected with the side wall of the sliding block 22, which deviates from the ruler strip, and the other end of the jacking spring 25 is fixedly connected with the side wall of the sliding groove 21, which is far away from the ruler strip 13.

When a worker winds up the ruler strip 13, the rotating shaft 11 can be driven to rotate through the rotating rod 12, and the ruler strip 13 can enter the shell 1 from the through hole 16 under the driving of the rotating shaft 11; at this time, the supporting spring 25 supports the sliding blocks 22 to move towards the direction of the ruler strip 13, and then the connecting shaft 23 between the two sliding blocks 22 drives the rolling cylinder 24 to move towards the rolled ruler strip 13, so that the rolling cylinder 24 always props against the side wall of the ruler strip 13, and when the ruler strip 13 is stored and pulled out of the shell 1, the rolling cylinder 24 can synchronously rotate along with the ruler strip 13, and the friction resistance between the rolling cylinder 24 and the ruler strip 13 is reduced; the coiled measuring tape 13 can be tightly attached together under the limitation of the clamping assembly 2, so that the coiling of the measuring tape 13 is more tight, and the possibility of looseness of the steel measuring tape is reduced.

Referring to fig. 4 and 5, a clamping mechanism 3 for stretching the ruler strip 13 when the ruler strip 13 is rolled up is arranged in the housing 1, the clamping mechanism 3 comprises a sliding frame 31 arranged in the housing 1, the sliding frame 31 is a rectangular frame, an opening of the sliding frame 31 is arranged in parallel with a side wall of the housing, the opening of the sliding frame 31 can accommodate the ruler strip 13 to pass through the sliding frame, and the ruler strip 13 firstly passes through the rolling cylinder 24, then passes through the sliding hole and finally passes through the through hole 16 when extending out of the housing 1; a sliding block 311 is fixedly connected to the side wall of the sliding frame 31 facing one side of the shell, a sliding groove 32 for accommodating the sliding block 311 to slide is formed in the inner side wall of the shell 1, the sliding groove 32 is perpendicular to the sliding groove 21, the sliding groove 32 is arranged along the radial direction of the coiled ruler strip 13, and a power assembly 33 for driving the sliding block 311 to slide along the length direction of the sliding groove 32 is arranged in the sliding groove 32; a clamping plate 34 is connected in the sliding frame 31 in a sliding manner, and the clamping plate 34 is arranged in parallel with the ruler strip 13; the side wall of the sliding frame 31 fixedly connected with the sliding block 311 is provided with a sliding limiting groove 411312 with a T-shaped cross section, the sliding limiting groove 411312 is arranged in parallel with the sliding groove 32, a sliding limiting block 341 (see fig. 6) is connected in the sliding limiting groove 411312 in a sliding manner, and the sliding limiting block 341 is fixedly connected to the side wall of the clamping plate 34; the side wall of the sliding frame 31 parallel to the clamping plate 34 is provided with two extension springs 35 which support the clamping plate 34 to slide towards the coiled rear ruler strip 13, the extension springs 35 are arranged in parallel to the sliding limiting groove 411312, one end of each extension spring 35 is fixedly connected to the side wall of the sliding frame 31, and the other end of each extension spring 35 is fixedly connected to the side wall of the clamping plate 34; the ruler strip 13 passes through the clamping plate 34 and deviates from the space between the telescopic spring 35 and the sliding frame 31, at the moment, the clamping plate 34 moves towards the side wall of the sliding frame 31 under the jacking of the telescopic spring 35, so that the ruler strip 13 is clamped between the sliding frame 31 and the clamping plate 34, and then a reverse tensile force is given to the ruler strip 13 during winding, so that the ruler strip 13 is wound on the rotating shaft 11 more tightly; a sliding rod 36 is fixedly connected to the side wall of the clamping plate 34 away from the sliding limiting block 341, the sliding rod 36 is perpendicular to the length direction of the sliding groove 32, a fixing rod 37 parallel to the sliding rod 36 is fixedly connected to the side wall of the sliding frame 31, the fixing rod 37 is positioned on the side wall of the sliding frame 31 away from the ruler strip 13, a waist-shaped through hole 3816 for the sliding rod 36 to slide is formed in the sliding frame 31, a waist-shaped long hole 39 for the fixing rod 37 and the sliding rod 36 to slide is formed in the side wall of the housing 1, the waist-shaped through hole 3816 and the waist-shaped long hole 39 are positioned on the same plane and parallel to the sliding groove 32, and the size of the waist-shaped through hole 3816 is smaller than that of; the peripheral side wall that slide bar 36 passed waist shape through-hole 3816 and waist shape slot 39 is provided with the restriction piece 361 with slide bar 36 and dead lever 37 reciprocal anchorage, and restriction piece 361 sets up with slide bar 36 is perpendicular, and restriction piece 361 is connected with slide bar 36 rotation, and joint mouth 3611 has been seted up to the side wall of restriction piece 361, but joint mouth 3611 joint is on the peripheral of dead lever 37. When the ruler strip 13 is pulled out of the through hole 16, the sliding rod 36 can pull the clamping plate 34 to move along the length direction of the sliding limiting groove 411312 under the limitation of the sliding limiting block 341, so that the clamping plate 34 moves away from the ruler strip 13; after the slide bar slides to and has suitable interval with dead lever 37, the elastic deformation that this moment expanding spring 35 can take place the shrink under the top of grip block 34 is held, rotate restriction member 361 through the rotation tie point of restriction member 361 and slide bar, with the joint of restriction member 361 joint on dead lever 37 is global, then loosen the slide bar, expanding spring 35 holds the top of grip block 34 this moment, make between slide bar and the dead lever 37 keep stable interval under the restriction of restriction member 361, make things convenient for use restriction member 361 of chi strip 13 to be with reciprocal anchorage between slide bar and the dead lever 37, and then remove grip plate 34 to the clamping effort of chi strip 13, thereby make things convenient for the staff to slide chi strip 13 out of shell 1 and carry out measurement work.

Referring to fig. 2 and 3, the power assembly 33 includes a screw 331 disposed in the sliding slot 32, the screw 331 penetrates through a side wall of the sliding block 311 and is in threaded connection with the sliding block 311, two ends of the screw 331 are respectively rotatably connected with a side wall of the sliding slot 21, an end of the screw 331 facing the center of the housing 1 penetrates through a side wall of the sliding slot 32 and is fixedly connected with a driven bevel gear 332, a driving bevel gear 333 engaged with the driven gear 441 is fixedly connected to the rotating shaft 11, and a receding slot 17 for accommodating the driving bevel gear 333 and the driven bevel gear 332 to work cooperatively is formed on a side wall of the housing 1; when the rotating shaft 11 rotates the winding ruler 13, the screw 331 can drive the sliding frame 31 to move away from the wound ruler 13. When a worker winds the ruler strip 13, the diameter of the wound ruler strip 13 is gradually increased along with the gradual winding of the ruler strip 13, in order to enable the side wall of the sliding frame 31 to be always outside the side wall of the wound ruler strip 13, at the moment, when the worker can rotate the rotating shaft 11 through the rotating rod 12, the rotating shaft 11 can drive the driving bevel gear 333 to rotate, the driving bevel gear 333 rotates to drive the driven bevel gear 332 to rotate and further drive the screw 331 to rotate, the screw 331 rotates to drive the sliding block 311 to move along the length direction of the sliding chute 32, so that the sliding frame 31 can synchronously slide while winding along with the ruler strip 13, and the stable clamping of the clamping plate 34 and the sliding frame 31 on the ruler strip 13 is further maintained; when the ruler strip 13 is pulled out, the rotating shaft 11 is only required to be rotated reversely.

Referring to fig. 7 and 8, a cleaning mechanism 4 for cleaning the measuring tape 13 is disposed inside the through hole 16, the cleaning mechanism 4 includes two rotating shafts 41 disposed in the housing 1, the rotating shafts 41 are disposed perpendicular to the side walls of the housing 1, both ends of the rotating shafts 41 are rotatably connected to the side walls of the housing 1 through bearings (not shown in the figures), the two rotating shafts 41 are disposed on both sides of the measuring tape, and a cleaning cylinder 42 capable of abutting against the side walls of the measuring tape 13 is coaxially sleeved on the rotating shafts 41, the cleaning cylinder 42 is an elastic cloth with good elasticity; the housing 1 is provided with a driving assembly 44 for driving the two rotating shafts 41 to rotate, and the rotating shafts 41 rotate in the opposite direction to the direction in which the tape 13 is stored in the housing 1. When the ruler strip 13 is rolled up, the two rotating shafts 41 are driven to rotate by the driving assembly 44, so that dust on the ruler strip 13 is cleaned, and the cleaned dust is discharged out of the shell 1 from the through hole 16.

Referring to fig. 7 and 8, the driving assembly 44 includes a driven gear 441 disposed at an end of the rotating shaft 41, the end of the rotating shaft 41 penetrates through a sidewall of the housing 1 and is fixedly connected to a center of the driven gear 441, the two driven gears 441 are engaged with each other, one of the two driven gears 441 is engaged with a driving gear 442, a driving motor 443 for driving the driving gear 442 to rotate is disposed on the housing 1, and an output shaft of the driving motor 443 penetrates through a center of the driving gear 442 and is fixedly connected to a sidewall of the driving gear 442; be provided with the protection casing 444 that is used for protecting drive assembly 44 on the shell 1, protection casing 444 passes through construction bolt 5 and can dismantle with the lateral wall of shell 1 and be connected, and the lateral wall that driving motor 443 deviates from the output shaft is with the lateral wall fixed connection of protection casing 444, and offers on the protection casing 444 and be used for radiating a plurality of louvres 4441 of motor.

When the driving assembly 44 works, a worker only needs to turn on the driving motor 443, the driving gear 442 is driven by the rotation of the driving motor 443, the driving gear 442 drives the two driven gears 441 engaged with the driving gear 442 to rotate, and the two rotating shafts 41 rotate automatically in opposite directions, so that the cleaning cylinder 42 provides a same-direction friction force to the ruler strip 13.

Referring to fig. 7 and 8, an operation hole 18 is formed in a side wall of the housing 1 facing away from the protective shell, a sealing cover 6 covers the operation hole 18, the sealing cover 6 is detachably connected with the side wall of the housing 1 through a mounting bolt 5, a mounting groove 61 is formed in the side wall of the sealing cover 6 contacting with the rotating shaft 41, and the rotating shaft 41 can be inserted into the mounting groove 61 and detachably connected with the mounting groove 61. The cleaning cylinder 42 is detachably connected with the rotating shaft 41 through a connecting assembly 43, the connecting assembly 43 comprises a fixed cylinder 431 sleeved on the rotating shaft 41, the fixed cylinder 431 is fixedly connected with a limiting strip 4311 along the axial direction of the fixed cylinder 431 towards the side wall of the rotating shaft 41, a limiting groove 411 for accommodating the limiting strip 4311 to insert and slide is formed in the rotating shaft 41, and the inner side wall of the cleaning cylinder 42 is fixedly connected with the outer side wall of the fixed cylinder 431. When the worker uses the connecting assembly 43 to install the cleaning cylinder 42 on the rotating shaft 41, the worker only needs to make the limiting strip 4311 on the fixed cylinder 431 opposite to the limiting groove 411 on the rotating shaft 41, and then the fixed cylinder 431 can be sleeved on the rotating shaft 41 to complete the installation of the cleaning cylinder 42.

The implementation principle of the embodiment is as follows: when a worker uses the steel tape, the tip of the steel tape can be aligned to a point to be measured, another person pulls the tape 13 to another point to be measured, and a measurement task can be completed through a reading on the steel tape, when the steel tape is wound up, the rotating shaft 11 can be driven to rotate by the rotating rod 12, the tape 13 enters the housing 1 from the through hole 16 under the driving of the rotating shaft 11, the rotation of the rotating shaft 11 can drive the driving bevel gear 333 to rotate, the rotation of the driving bevel gear 333 can drive the driven bevel gear 332 to rotate, and further drive the screw 331 to rotate, the rotation of the screw 331 can drive the sliding block 311 to move along the length direction of the sliding groove 32, so that the sliding frame 31 synchronously slides while being wound up along with the tape 13, so that the sliding frame 31 is always far away from the side wall of the wound-up tape 13, the clamping plate 34 can always clamp the tape 13 under the propping of the extension spring 35, a stretching force is given to the ruler strip 13, and the stretched ruler strip 13 is finally wound on the lower side of the rolling cylinder 24, so that the ruler strip 13 is wound more neatly through extrusion of the rolling cylinder 24.

When the ruler strip 13 is wound, the driving assembly 44 can be opened to drive the rotating shaft 41 to rotate, the rotating shaft 41 can drive the cleaning cylinders 42 to scrape the surface of the ruler strip 13, meanwhile, the rotating direction of the rotating shaft 41 is opposite to the accommodating direction of the ruler strip 13, so that the two cleaning cylinders 42 are matched with each other, a tensile force can be given to the ruler strip 13, the cleaning efficiency of the cleaning cylinders 42 on the ruler strip 13 can be increased, and the ruler strip 13 can be accommodated on the rotating shaft 11 more tightly.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.