Flexible rule measuring device

Abstract

The utility model relates to a flexible rule measuring device which comprises a flexible rule shell, a rotating disc and a flexible rule, wherein the rotating disc and the flexible rule are arranged in the flexible rule shell; the flexible rule shell comprises an upper shell body, a lower shell body and a volute spiral spring in the flexible rule shell. One end of the volute spiral spring is connected with the lower shell body in a clamped mode. The rotating disc comprises a rotating disc body and an annular clamping groove which are coaxially arranged with the flexible rule shell, the flexible rule is arranged between the flexible rule shell and the rotating disc body in a sleeved mode, and the stretchable end of the flexible rule penetrates and extends out of the flexible rule shell. The flexible rule shell is further provided with a rolling button assembly used for driving the volute spiral spring to stop moving or reset and a clamping assembly used for clamping the stretchable end of the flexible rule. Compared with the prior art, the flexible ruler can effectively avoid deformation of the portion, close to the ruler shell, of the flexible ruler in the drawing process, and the service life of the flexible ruler can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible rulers, in particular to a flexible ruler measuring device. Background Art

[0002] Measurement of various circumferences of the human body, such as head circumference, neck circumference, chest circumference, abdominal circumference, waist circumference, thigh circumference, arm circumference, etc., are commonly used measurement values ​​in clinical practice. By measuring various circumferences of the human body, doctors can quantitatively understand and record the physical condition of the patient's affected limb.

[0003] At present, the most commonly used tool for measuring limb circumference is a tape measure, which is used to read the circumference value after the tape is wrapped around the body. However, ordinary tape measures tend to become loose after being rolled up, so that the tape measure will be worn on the surface when it is pulled out before the next use. After repeated use, the scale markings on the tape measure may become unclear, which will greatly affect the reading of the circumference value in the later measurement, reduce the accuracy of measuring the circumference of the human body, and greatly reduce the service life of the tape measure.

[0004] Therefore, a flexible tape measuring device which will not become loose after being rolled up and can increase the service life of the flexible tape is still to be developed for use in measuring the circumference of a human body. Utility Model Content

[0005] The utility model aims to provide a flexible tape measuring device in order to overcome the defects of the prior art that the flexible tape becomes loose after being rolled up and has a short service life.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A tape measure measuring device comprises a tape measure housing, a rotating disk and a tape measure arranged in the tape measure housing;

[0008] The tape measure housing comprises an upper housing, a lower housing and a scroll spring in the tape measure housing, one end of the scroll spring being engaged with a bayonet opening on the lower housing;

[0009] The rotating disk comprises a rotating disk body and an annular slot coaxially arranged with the tape measure housing, the tape measure is sleeved between the tape measure housing and the rotating disk body, and the stretchable end of the tape measure penetrates and extends out of the tape measure housing;

[0010] The tape measure housing is also provided with a reeling button assembly for driving the scroll spring to stop moving or reset, and a clamping assembly for clamping the stretchable end of the tape measure;

[0011] The clamping assembly includes a cavity arranged at the top of the upper shell body, and the portion of the cavity extending out of the outer edge of the upper shell body is provided with a first movable rod and a second movable rod that can be moved horizontally, and the two movable rods are respectively connected to a first vertical clamping rod and a second vertical clamping rod, and the stretchable end of the tape measure is clamped between the first clamping rod and the second clamping rod.

[0012] Furthermore, the rotating disk also includes a partition connected between the rotating disk body and the annular groove, the partition is provided with a circular notch downwardly, and the spiral spring is sleeved outside the circular notch.

[0013] Furthermore, a first notch for fixing a tape measure is formed on the upper edge of the rotating disk, and a second notch for fixing a spiral spring is formed on the lower edge of the rotating disk.

[0014] Furthermore, the winding button assembly includes a bottom plate arranged inside the tape measure case and a tube body arranged on the bottom plate and extending out of the tape measure case axially, wherein a first button assembly is movably arranged in the tube body, and a second button assembly is movably arranged in the first button assembly.

[0015] Furthermore, a rectangular fixing strip capable of abutting against the annular groove is connected to the bottom of the first button assembly.

[0016] Furthermore, the bottom of the second button assembly is connected to the first button assembly via a flexible steel strip, and a clamping notch that can cooperate with the flexible steel strip is provided on the side wall of the tube body.

[0017] Furthermore, the first button assembly includes a first button, a connecting seat fixedly arranged at the lower end of the first button, and a spring No. 1 sleeved on the connecting seat.

[0018] Furthermore, the flexible steel strip includes a bottom sheet body fixed on the connecting seat, a snap-in strip provided on the bottom sheet body for cooperating with the snap-in slot, and an upper sheet body provided on the snap-in strip and connected to the second button assembly, wherein a rectangular slot is provided in the middle of the upper sheet body.

[0019] Furthermore, the bottom sheet body, the snap-in strip and the upper sheet body are integrally formed.

[0020] Furthermore, the second button assembly includes a second button movably disposed in the first button and a card joint disposed on the second button, wherein the card joint is provided with an inclined surface.

[0021] Furthermore, the second button assembly also includes a No. 2 spring, one end of which is fixed on the second button, and the other end of which is fixed on the flexible steel strip.

[0022] Furthermore, the clamping assembly includes a cavity arranged at the top of the upper shell body, and the part of the cavity extending out of the outer edge of the upper shell body is provided with a first movable rod and a second movable rod that can move horizontally, and the two movable rods are respectively provided with corresponding first sleeves and second sleeves, and the first sleeves and the second sleeves are respectively provided with a first clamping rod and a second clamping rod.

[0023] Furthermore, the upper shell is provided with a through channel, and the clamping assembly also includes a push rod that can move in the channel, and the push rod is connected to the bottom of the winding button assembly.

[0024] Furthermore, the clamping assembly also includes a slide groove arranged on the outer side of one end of the cavity away from the winding button assembly, and a first slider and a second slider slidably arranged in the slide groove.

[0025] The first slider and the second slider are provided with a first wiper and a second wiper, respectively, and a No. 3 spring is fixedly connected between the first slider and the second slider.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] (1) The utility model clamps the tape of the tape measure on the outer side of the tape measure shell by the clamping assembly, thereby preventing the tape measure from being deformed near the tape measure shell during the pulling process, and can effectively increase the service life of the tape measure.

[0028] (2) The tape measuring device of the utility model can fix the rotating disk, thereby limiting one end of the tape, and at the same time, clamp the other end of the tape located outside the tape shell through the first clamping rod and the second clamping rod, thereby ensuring that the tape will not become loose after being rolled up.

[0029] (3) During use of the tape measuring device of the utility model, the fixing of the rotating disk can be loosened, and at the same time, the first clamping rod and the second clamping rod can loosen the clamping of the other end of the tape located outside the tape housing, so that the medical staff can pull the tape to the required length.

[0030] (4) The utility model can release the fixing of the rotating disk when winding is needed by setting the winding button assembly, and the return of the spiral spring drives the rotating disk to rotate, thereby realizing automatic winding of the tape measure and improving the winding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The utility model is a schematic diagram of the overall structure of the soft ruler measuring device.

[0032] Figure 2 This is a front view of a soft ruler measuring device according to Embodiment 2 of the present utility model.

[0033] Figure 3 for Figure 2 Cross-sectional view of line BB in .

[0034] Figure 4 This is a schematic structural diagram of the rotating disk of Example 2 of the utility model.

[0035] Figure 5 This is a schematic structural diagram of the winding button assembly of Example 2 of the utility model.

[0036] Figure 6 for Figure 5Cross-sectional view of line DD in FIG.

[0037] Figure 7 The figure is a schematic diagram of the overall structure of the flexible ruler measuring device of Example 3 of the utility model.

[0038] Figure 8 for Figure 7 Enlarged view of point A in .

[0039] Description of the markings in the figure:

[0040] 1-soft ruler shell, 11-upper shell, 12-lower shell, 13-volute spring, 2-rotating disk, 21-rotating disk body, 22-partition plate, 23-circular notch, 24-annular slot, 25-first notch, 26-second notch, 3-winding button assembly, 31-bottom plate, 32-tube body, 33-slot, 34-flexible steel strip, 341-bottom sheet body, 342-slot, 343-upper sheet body, 35-first button assembly, 351-first button, 352-connecting seat, 353-No. 1 spring Spring, 36-second button assembly, 361-second button, 362-card joint, 363-No. 2 spring, 37-rectangular fixing strip, 4-clamping assembly, 41-cavity, 411-first slider, 412-second slider, 413-first wiper, 414-second wiper, 415-No. 3 spring, 42-second air port, 43-push rod, 44-first moving rod, 45-second moving rod, 46-first sleeve, 47-second sleeve, 48-first clamping rod, 49-second clamping rod, 5-soft ruler. DETAILED DESCRIPTION

[0041] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0042] In the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] Embodiment 1:

[0045] A tape measure measuring device comprises a tape measure housing 1, a rotating disk 2 and a tape measure 5 arranged in the tape measure housing 1. The tape measure housing 1 comprises an upper shell 11, a lower shell 12 and a scroll spring 13 in the tape measure housing 1, and one end of the scroll spring 13 is engaged with a bayonet opening on the lower shell 12.

[0046] The rotating disk 2 includes a rotating disk body 21 and an annular slot 24 coaxially arranged with the tape case 1 . The tape 5 is sleeved between the tape case 1 and the rotating disk body 21 , and the stretchable end of the tape 5 extends through the tape case 1 .

[0047] The tape measure housing 1 is also provided with a rewinding button assembly 3 for driving the spiral spring 13 to stop moving or reset, and a clamping assembly 4 for clamping the stretchable end of the tape measure 5. The clamping assembly 4 includes a cavity 41 arranged at the top of the upper shell 11, and the portion of the cavity 41 extending out of the outer edge of the upper shell 11 is provided with a first moving rod 44 and a second moving rod 45 that can move horizontally. The two moving rods are respectively connected with a first vertical clamping rod 48 and a second vertical clamping rod 49, and the stretchable end of the tape measure 5 is clamped between the first clamping rod 48 and the second clamping rod 49.

[0048] In this embodiment, the clamping assembly 4 clamps the portion of the tape measure 5 located outside the tape measure housing 1 to prevent the tape measure 5 from being deformed near the tape measure housing 1 during the pulling process, thereby increasing the service life of the tape measure 5.

[0049] Embodiment 2:

[0050] A tape measure measuring device comprises a tape measure housing 1, a rotating disk 2 and a tape measure 5. The tape measure housing 1 is also provided with a reeling button assembly 3 and a clamping assembly 4 for clamping the stretchable end of the tape measure 5.

[0051] The tape measure housing 1 comprises an upper housing 11 , a lower housing 12 and a scroll spring 13 in the tape measure housing 1 , one end of the scroll spring 13 is engaged with a bayonet opening on the lower housing 12 .

[0052] The rotating disk 2 includes a rotating disk body 21 and an annular groove 24 coaxially arranged with the tape case 1, the tape 5 is sleeved between the tape case 1 and the rotating disk body 21, and the stretchable end of the tape 5 extends through the tape case 1. The rotating disk 2 also includes a partition 22 connected between the rotating disk body 21 and the annular groove 24, the partition 22 is provided with a circular notch 23 downward, and the spiral spring 13 is sleeved outside the circular notch 23. The upper edge of the rotating disk body 21 is provided with a first notch 25 for fixing the tape 5, and the lower edge of the rotating disk body 21 is provided with a second notch 26 for fixing the spiral spring 13.

[0053] The rewinding button assembly 3 includes a bottom plate 31 disposed inside the tape measure case 1 and a tube body 32 disposed on the bottom plate 31 and extending out of the tape measure case 1 along the axial direction of the tape measure case 1. A first button assembly 35 is movably disposed in the tube body 32, and a second button assembly 36 is movably disposed in the first button assembly 35. A rectangular fixing strip 37 capable of abutting against the annular slot 24 is connected to the bottom of the first button assembly 35, and the bottom of the second button assembly 36 is connected to the first button assembly 35 through a flexible steel strip 34. A snap-on notch 33 capable of cooperating with the flexible steel strip 34 is provided on the side wall of the tube body 32. The first button assembly 35 includes a first button 351, a connecting seat 352 fixedly disposed at the lower end of the first button 351, and a No. 1 spring 353 sleeved on the connecting seat 352. The flexible steel strip 34 includes a bottom film body 341 fixed on the connecting seat 352, a snap-in strip 342 provided on the bottom film body 341 for cooperating with the snap-in slot 33, and an upper film body 343 provided on the snap-in strip 342 and connected to the second button assembly 36, a rectangular slot is provided in the middle of the upper film body 343, and the bottom film body 341, the snap-in strip 342 and the upper film body 343 are integrally formed.

[0054] The second button assembly 36 includes a second button 361 movably disposed in the first button 351 and a clamping joint 362 disposed on the second button 361, and a slope is disposed on the clamping joint 362. The second button assembly 36 also includes a second spring 363, one end of which is fixedly disposed on the second button 361, and the other end of which is fixedly disposed on the flexible steel strip 34.

[0055] Embodiment 3:

[0056] A tape measure measuring device comprises a tape measure housing 1, a rotating disk 2 and a tape measure 5. The tape measure housing 1 is also provided with a winding button assembly 3 and a clamping assembly 4.

[0057] The clamping assembly 4 of this embodiment includes a cavity 41 disposed at the top of the upper shell 11, and the portion of the cavity 41 extending out of the outer edge of the upper shell 11 is provided with a first moving rod 44 and a second moving rod 45 that can move horizontally, and the two moving rods are respectively sleeved with a corresponding first sleeve 46 and a second sleeve 47, and the first sleeve 46 and the second sleeve 47 are respectively provided with a first clamping rod 48 and a second clamping rod 49. The upper shell 11 is provided with a through channel, and the clamping assembly 4 also includes a push rod 43 that can move in the channel, and the push rod 43 is connected to the bottom of the winding button assembly 3.

[0058] The clamping assembly 4 further comprises a slide groove disposed outside the end of the cavity 41 away from the rewinding button assembly 3 and a first slider 411 and a second slider 412 slidably disposed in the slide groove. The first slider 411 and the second slider 412 are respectively provided with a first wiper 413 and a second wiper 414, and a third spring 415 is fixedly connected between the first slider 411 and the second slider 412.

[0059] Embodiment 4:

[0060] The utility model provides a tape measure device, comprising a tape measure housing 1, a rotating disk 2, a reeling button assembly 3, a clamping assembly 4, and a tape measure 5. One end of the tape measure 5 is sleeved on the outer side of the rotating disk 2 and the other end passes through the tape measure housing 1.

[0061] The tape measure housing 1 comprises an upper shell 11, a lower shell 12, a bayonet fixed on the lower shell 12, a first air port provided on the upper shell 11, and a volute spring 13 with one end being clamped on the bayonet and the other end being sleeved on the rotating disk 2. The rotating disk 2 comprises a rotating disk body 21, a partition 22, a circular notch 23 provided on the partition 22, an annular slot 24 provided on the partition 22, a first notch 25 provided on the upper end of the rotating disk body 21 for fixing the tape measure 5, and a second notch 26 provided on the rotating disk body 21 for fixing the volute spring 13. The winding button assembly 3 includes a bottom plate 31 fixed on the inner side of the upper shell 11, a tube body 32 fixed on the bottom plate 31 and passing through the upper shell 11, a snap-in slot 33 provided on the tube body 32, a flexible steel strip 34 cooperating with the snap-in slot 33, a first button assembly 35 movably provided in the tube body 32, a second button assembly 36 movably provided in the first button assembly 35, and a rectangular fixing strip 37 fixed on the first button assembly 35.

[0062] Specifically, the clamping assembly 4 includes a cavity 41 fixed to the outside of the upper shell 11, a second air port 42 arranged at the bottom of the cavity 41, a push rod 43 fixed to the first button assembly 35, a first spring and a second spring symmetrically arranged on the inner side of one end of the cavity 41 away from the winding button assembly 3, a first moving rod 44 arranged on the first spring, a second moving rod 45 arranged on the first spring, a first sleeve 46 arranged on the first moving rod 44, a second sleeve 47 arranged on the second moving rod 45, a first clamping rod 48 arranged in the first sleeve 46, and a second clamping rod 49 arranged in the second sleeve 47. During the rising process of the rectangular fixing bar 37, the push rod 43 arranged thereon rises accordingly and pushes air into the cavity 41 to the inner side of the end away from the winding button assembly 3 through the first air port and the second air port 42. Under the setting of the first spring and the second spring, the first moving rod 44 and the second moving rod 45 move closer to each other, and the movement force is more stable and uniform, thereby driving the first clamping rod 48 in the first sleeve 46 and the second clamping rod 49 in the second sleeve 47 to move closer to each other, so that the first clamping rod 48 and the second clamping rod 49 clamp the part of the tape measure 5 located on the outer side of the tape measure shell 1, avoiding deformation of the tape measure 5 close to the tape measure shell 1 during the pulling process, and improving the service life of the tape measure 5.

[0063] Specifically, the first button assembly 35 includes a first button 351, a connection seat 352 fixed at the lower end of the first button 351, and a spring 353 sleeved at the lower end of the connection seat. When the tape measure 5 needs to be retracted, the first button 351 in the first button assembly 35 is pressed, so that the connection seat 352 disposed at its lower end moves downward, thereby driving the flexible steel strip 34 to move downward along the inclined surface of the clamping joint 362 in the second button assembly 36. When the clamping strip 342 moves to a certain position, it is clamped into the clamping notch 33 on the tube body 32, completing the position limitation of the first button assembly 35, so that the rectangular fixing strip 37 disposed thereon is separated from the upper wall of the annular clamping groove 24 on the rotating disk 2, releasing the fixing of the rotating disk 2, and the resetting of the spiral spring 13 drives the rotating disk 2 to rotate, thereby realizing the automatic rewinding of the tape measure 5 and improving the rewinding efficiency.

[0064] Specifically, the second button assembly 36 includes a second button 361 movably arranged in the first button 351, a clamping joint 362 arranged on the second button, and a second spring 363 with one end fixedly arranged on the second button 361 and the other end fixedly arranged on the flexible steel strip 34. When the tape measure 5 is pulled out, as the rotating disk 2 rotates, the spiral spring 13 is subjected to force, and at this time, the second button assembly 36 in the winding button assembly 3 is pressed. Under the setting of the second spring 363, the second button 361 moves downward in the upper sheet 343 with a rectangular notch on the flexible steel strip 34, and at the same time, under the action of the inclined surface of the clamping joint 362, the flexible steel strip 34 is pushed to move to the side away from the notch, and the clamping connection between the flexible steel strip 34 and the tube body 32 is released. At this time, under the action of the No. 1 spring 353, the connecting seat 352 fixed to the lower end of the first button 351 in the first button assembly 35 pops up, driving the rectangular fixing strip 34 thereon to pop up and press against the upper wall of the annular groove 24 on the rotating disk 2, thereby fixing the rotating disk 2 and stopping the spiral spring 13 from moving, thereby limiting the rebound movement of the tape measure 5.

[0065] Specifically, the clamping assembly 4 also includes a slide groove 412 arranged on the outside of one end of the cavity 41 away from the winding button assembly 3, a first slider 411 and a second slider 412 slidably arranged in the slide groove 412, a first wiper 413 arranged on the first slider 411, a second wiper 414 arranged on the second slider 412, and a No. 3 spring 415 whose two ends are respectively fixed to the first slider 411 and the second slider 412. The first clamping rod 48 in the first sleeve 46 and the second clamping rod 49 in the second sleeve 47 move closer to each other. When the first clamping rod 48 contacts the first wipe sheet 413 and the second clamping rod 49 contacts the second wipe sheet 414, the first wipe sheet 413 and the second wipe sheet 414 move closer to each other with the cooperation of the slider and the slide groove, and finally contact each other to complete the tight fixation, so that the first clamping rod 48 and the second clamping rod 49 clamp the part of the tape measure 5 located on the outer side of the tape measure shell 1, avoiding deformation of the tape measure 5 close to the tape measure shell 1 during the pulling process, thereby increasing the service life of the tape measure 5.

[0066] Specifically, the flexible steel strip 34 includes a bottom sheet body 341 fixed to the connection seat 352, a clamping strip 342 provided on the bottom sheet body 341 to cooperate with the clamping notch 33 on the tube body 32, an upper sheet body 343 provided on the clamping strip 342 and having a rectangular notch in the middle, and a bevel provided on the clamping joint 362. When the second button assembly 36 in the rewinding button assembly 3 is pressed and the second button 361 moves downward in the upper sheet body 343 having a rectangular notch on the flexible steel strip 34 under the setting of the second spring 363, the flexible steel strip 34 is pushed to move to the side away from the clamping notch 33 under the action of the bevel of the clamping joint 362, and the clamping connection between the flexible steel strip 34 and the tube body 32 is released.

[0067] When the tape measure 5 is not in use, the rewinding button assembly 3 is in a relaxed state, that is, the first button assembly 35 is in a brake state, the flexible steel strip 34 is clamped in the clamping notch 33 on the tube 32 that passes through the upper shell 11, the rectangular fixing strip 37 is suspended in the annular clamping groove 24 on the rotating disk 2, and the push rod 43 fixed on the first button assembly 35 does not enter the cavity 41, the tape measure 5 is pulled out, and as the rotating disk 2 rotates, the spiral spring 13 is subjected to force. At this time, the second button assembly 35 in the winding button assembly 3 is pressed. Under the setting of the No. 2 spring 363, the second button 361 moves downward in the upper sheet 343 with a rectangular notch on the flexible steel strip 34. At the same time, under the action of the inclined surface of the clamping joint 362, the flexible steel strip 34 is pushed to move to the side away from the clamping notch 33, thereby releasing the clamping connection between the flexible steel strip 34 and the tube body 32. At this time, under the action of the No. 1 spring 353, the connecting seat 352 fixed at the lower end of the first button 351 in the first button assembly 35 pops up, driving the rectangular fixing strip 37 thereon to pop up and press against the upper wall of the annular clamping groove 24 on the rotating disk 2, thereby fixing the rotating disk 2 and stopping the spiral spring 13 from moving, thereby limiting the rebound movement of the tape measure 5. At the same time, during the rising process of the rectangular fixing bar 37, the push rod 43 arranged thereon rises accordingly and pushes air into the cavity 41 to the inner side of the end away from the winding button assembly 3 through the first air port and the second air port 42. Under the setting of the first spring and the second spring, the first moving rod 44 and the second moving rod 45 move closer to each other, and the moving force is more stable and uniform, thereby driving the first clamping rod 48 in the first sleeve 46 and the second clamping rod 49 in the second sleeve 47 to move closer to each other. When the first clamping rod 48 contacts the first wipe sheet 413 and the second clamping rod 49 contacts the second wipe sheet 414, the first wipe sheet 413 and the second wipe sheet 414 move closer to each other under the cooperation of the slider and the slide groove, and finally contact each other to complete the tight fixation, so as to realize the clamping of the first clamping rod 48 and the second clamping rod 49 on the outer part of the tape measure 5 of the tape measure shell 1, avoiding deformation of the tape measure 5 close to the tape measure shell 1 during the pulling process, and improving the service life of the tape measure 5.

[0068] When it is necessary to retract the tape measure 5, the first button 351 in the first button assembly 35 is pressed, so that the connecting seat 352 arranged at the lower end thereof moves downward, thereby driving the flexible steel strip 34 to move downward along the inclined surface of the clamping joint 362 in the second button assembly 36. When it moves to a certain position, the clamping strip 342 is clamped into the clamping groove 33 on the tube body 32, completing the limiting of the first button assembly 35, so that the rectangular fixing strip 37 arranged thereon is separated from the upper wall of the annular clamping groove 24 on the rotating disk 2, releasing the fixation of the rotating disk 2, and the resetting of the spiral spring 13 drives the rotating disk 2 to rotate, thereby realizing the automatic rewinding of the tape measure 5 and improving the rewinding efficiency. At the same time, the rectangular fixed strip 37 drives the push rod 43 disposed thereon to descend during the movement, and draws air out of the cavity 41 through the second air port 42 and the first air port, so that the first moving rod 44 and the second moving rod 45 move away from each other, driving the first clamping rod 48 in the first sleeve 46 and the second clamping rod 49 in the second sleeve 47 to move away from each other, thereby canceling the interference with the first wiper 413 and the second wiper 414. Under the setting of the No. 3 spring 415, the first wiper 413 and the second wiper 414 are reset, thereby canceling the clamping effect on the tape measure 5.

[0069] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A soft ruler measuring device, characterized in that: It comprises a tape measure housing (1), a rotating disk (2) and a tape measure (5) arranged in the tape measure housing (1); The flexible ruler housing (1) comprises an upper housing (11), a lower housing (12) and a scroll spring (13) inside the flexible ruler housing (1), and one end of the scroll spring (13) is clamped with the lower housing (12); The rotating disk (2) comprises a rotating disk body (21) and an annular groove (24) coaxially arranged with the tape measure housing (1); the tape measure (5) is sleeved between the tape measure housing (1) and the rotating disk body (21), and the stretchable end of the tape measure (5) penetrates through the tape measure housing (1); The tape measure housing (1) is also provided with a reeling button assembly (3) for driving the scroll spring (13) to stop moving or reset, and a clamping assembly (4) for clamping the stretchable end of the tape measure (5); The clamping assembly (4) comprises a cavity (41) arranged at the top of the upper shell (11); a portion of the cavity (41) extending out of the outer edge of the upper shell (11) is provided with a first movable rod (44) and a second movable rod (45) which can be moved horizontally; the two movable rods are respectively connected to a first vertical clamping rod (48) and a second vertical clamping rod (49); and the stretchable end of the tape measure (5) is clamped between the first clamping rod (48) and the second clamping rod (49).

2. A soft tape measuring device according to claim 1, characterized in that: The rotating disk (2) further comprises a partition (22) connected between the rotating disk body (21) and the annular clamping groove (24); the partition (22) is provided with a circular notch (23) downwardly, and the spiral spring (13) is sleeved outside the circular notch (23).

3. A soft tape measuring device according to claim 2, characterized in that: The upper edge of the rotating disk (21) is provided with a first notch (25) for fixing a tape measure (5), and the lower edge of the rotating disk (21) is provided with a second notch (26) for fixing a spiral spring (13).

4. A soft tape measuring device according to claim 1, characterized in that: The rewinding button assembly (3) comprises a bottom plate (31) arranged inside the tape measure case (1) and a tube body (32) arranged on the bottom plate (31) and extending out of the tape measure case (1) along the axial direction of the tape measure case (1); a first button assembly (35) is movably arranged inside the tube body (32); and a second button assembly (36) is movably arranged inside the first button assembly (35); The bottom of the first button assembly (35) is connected to a rectangular fixing strip (37) capable of abutting against the annular slot (24); The bottom of the second button assembly (36) is connected to the first button assembly (35) via a flexible steel strip (34), and a clamping notch (33) capable of cooperating with the flexible steel strip (34) is provided on the side wall of the tube body (32).

5. A soft tape measuring device according to claim 4, characterized in that: The first button assembly (35) comprises a first button (351), a connecting seat (352) fixedly arranged at the lower end of the first button (351), and a No. 1 spring (353) sleeved on the connecting seat (352).

6. A soft tape measuring device according to claim 5, characterized in that: The flexible steel strip (34) comprises a bottom sheet (341) fixedly mounted on a connection seat (352), a clamping strip (342) mounted on the bottom sheet (341) and adapted to cooperate with a clamping slot (33), and an upper sheet (343) mounted on the clamping strip (342) and connected to a second button assembly (36), wherein a rectangular slot is disposed in the middle of the upper sheet (343); The bottom sheet body (341), the clamping strip (342) and the upper sheet body (343) are integrally formed.

7. A soft tape measuring device according to claim 5, characterized in that: The second button assembly (36) comprises a second button (361) movably arranged in the first button (351) and a clamping joint (362) arranged on the second button (361), wherein the clamping joint (362) is provided with an inclined surface; The second button assembly (36) further comprises a No. 2 spring (363), one end of the No. 2 spring (363) being fixed on the second button (361), and the other end of the No. 2 spring (363) being fixed on the flexible steel strip (34).

8. A soft tape measuring device according to claim 1, characterized in that: The first moving rod (44) and the second moving rod (45) are respectively sleeved with a corresponding first sleeve (46) and a second sleeve (47), and the first sleeve (46) and the second sleeve (47) are respectively provided with a first clamping rod (48) and a second clamping rod (49).

9. A soft tape measuring device according to claim 8, characterized in that: The upper shell (11) is provided with a through channel, and the clamping assembly (4) further comprises a push rod (43) which can move in the channel, and the push rod (43) is connected to the bottom of the winding button assembly (3).

10. A soft tape measuring device according to claim 8, characterized in that: The clamping assembly (4) further comprises a slide groove arranged on the outer side of one end of the cavity (41) away from the rewinding button assembly (3), and a first slider (411) and a second slider (412) slidably arranged in the slide groove; The first slider (411) and the second slider (412) are respectively provided with a first wiper (413) and a second wiper (414), and a third spring (415) is fixedly connected between the first slider (411) and the second slider (412).

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