CN206311015U - A kind of resilience coil chi at a slow speed - Google Patents

Abstract

The utility model discloses a kind of resilience coil chi at a slow speed, it is related to tape measure technical field.The resilience coil chi at a slow speed, including steel ruler body, the side of the steel ruler body is connected with chi bar case, the inwall bottom of the chi bar case is installed with flap, the inside of the chi bar case and interspersed it is provided with chi bar positioned at the top of flap, the top of the chi bar case is interspersed to be provided with reduction box, and the inwall top of the reduction box is symmetrically installed with loop bar, and the inwall top of each loop bar is installed with cushion block.The resilience coil chi at a slow speed, it is equipped with by cam, ratio wheel, loop bar and motion bar, chi bar is so set to drive ratio wheel to rotate during recovery, ratio wheel drive cam rotation, cam moves downward ratio wheel, so increase the normal pressure of chi bar, so as to increase the frictional force of chi bar, the rebound velocity of chi bar is slow down, so as to facilitate the use of people, the generation of danger is avoided, the safety in utilization of steel ruler is improve.

Description

A kind of resilience coil chi at a slow speed

Technical field

The utility model is related to tape measure technical field, specially a kind of resilience coil chi at a slow speed.

Background technology

The main Types of tape measure are steel tape, are exactly tape measure that everybody usually sees next to that fiber tape measure, and many people say It is cloth measure, is also exactly waistline chi, be commonly referred to as tape measure for tape in the south of China and Hongkong or draw chi, its material is PVC plastic and glass fibre, glass fibre can prevent from being elongated during the use of tape measure.

Tape measure can be rolled because tape measure the inside is equipped with spring, when measurement length is pulled out, really elongate scale and The length of spring, once measurement is finished, the spring inside tape measure can be shunk automatically, and scale is also and then received under spring force Contracting, so tape measure will be rolled.

But traditional tape measure can withdraw rapidly after the completion of use, such steel ruler may injure work during returning Make the personnel of personnel and surrounding, so had a strong impact on the work of staff, bring many troubles.

Utility model content

(1) technical problem for solving

In view of the shortcomings of the prior art, the utility model provides a kind of resilience coil chi at a slow speed, solves coil chi and exists The problem of rapid resilience after the completion of use.

(2) technical scheme

To realize object above, the utility model is achieved by the following technical programs：A kind of resilience coil chi at a slow speed, Including steel ruler body, the side of the steel ruler body is connected with chi bar case, and the inwall bottom of the chi bar case is installed with and subtracts Fast plate, the inside of the chi bar case and positioned at flap top it is interspersed be provided with chi bar, the top of the chi bar case is interspersed to be provided with Reduction box, the inwall top of the reduction box is symmetrically installed with loop bar, and the inwall top of each loop bar is installed with cushion block, The bottom of the cushion block is installed with support spring, and the bottom of the support spring is installed with limited block, described spacing The bottom of block is installed with expansion link, and the bottom of the expansion link runs through loop bar and extends to the lower section of loop bar, and two are stretched Ratio wheel is connected between bar, the ratio wheel is connected with chi bar.

The top of the reduction box and intert between two loop bars and be provided with motion bar, the top of the reduction box and right Answer the position of motion bar to be inlaid with the sleeve being adapted with motion bar, one end of the motion bar and lived positioned at the inside of reduction box The dynamic cam, and cam of being connected with is with ratio wheel drive connection, one end of the motion bar and positioned at the external stability peace of reduction box It surround equipped with arm-tie, the surface of the motion bar and between arm-tie and sleeve and is provided with compression spring.

Preferably, the steel ruler body is installed with connecting plate, the surface of the connecting plate away from the side of chi bar case It is installed with drawstring.

Preferably, the preceding surface of the steel ruler body is installed with card.

Preferably, the surface of the ratio wheel is provided with Anti-slip cover.

Preferably, the front end of the chi bar is installed with fixture block.

(3) beneficial effect

The utility model provides a kind of resilience coil chi at a slow speed.Possesses following beneficial effect：

(1), the resilience coil chi at a slow speed, is equipped with by cam, ratio wheel, loop bar and motion bar, so makes Chi bar drives ratio wheel to rotate during recovery, and ratio wheel drive cam rotation, cam moves downward ratio wheel, so Increase the normal pressure of chi bar, so as to increase the frictional force of chi bar, the rebound velocity of chi bar is slow down, so as to facilitate making for people With, it is to avoid dangerous generation, improve the safety in utilization of steel ruler.

(2), the resilience coil chi at a slow speed, by the setting to card, contiguous block and drawstring, makes steel ruler more conveniently take Band, so facilitates the use of people, improves the use scope of steel ruler, so as to improve the operating efficiency of staff.

Brief description of the drawings

Fig. 1 is the utility model structural representation；

Fig. 2 is the utility model A-A partial enlarged drawings；

Fig. 3 is the structural representation of the utility model chi bar case；

Fig. 4 is the structural representation of the utility model reduction box；

Fig. 5 is the structural representation of the utility model loop bar；

Fig. 6 is the attachment structure schematic diagram of the utility model cam and motion bar.

In figure：1 steel ruler body, 2 chi bar casees, 3 flaps, 4 chi bars, 5 reduction boxes, 6 loop bars, 7 cushion blocks, 8 support springs, 9 Limited block, 10 expansion links, 11 ratio wheels, 12 motion bars, 13 sleeves, 14 cams, 15 arm-ties, 16 compression springs, 17 connecting plates, 18 Drawstring, 19 cards, 20 Anti-slip covers, 21 fixture blocks.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

Fig. 1-6 are referred to, the utility model provides a kind of technical scheme：A kind of resilience coil chi at a slow speed, including steel ruler sheet Body 1, the side of steel ruler body 1 is connected with chi bar case 2, and steel ruler body 1 is installed with connecting plate away from the side of chi bar case 2 17, the surface of connecting plate 17 is installed with drawstring 18, and the preceding surface of steel ruler body 1 is installed with card 19, drawstring 18 Set, facilitate the carrying of staff, steel ruler is can be placed in key ring, card 19 facilitates taking for people Band, can be fixed on the waistband of staff, and the inwall bottom of chi bar case 2 is installed with flap 3, and flap 3 has Deceleration, the friction factor on the surface of flap 3 is larger, the inside of chi bar case 2 and interspersed is provided with chi positioned at the top of flap 3 Bar 4, the front end of chi bar 4 is installed with fixture block 21, and fixture block 21 facilitates the use of people, and the top of chi bar case 2 is interspersed to be provided with Reduction box 5, the inwall top of reduction box 5 is symmetrically installed with loop bar 6, and the inwall top of each loop bar 6 is installed with cushion block 7, cushion block 7 has the effect of fixed support spring 8, and the bottom of cushion block 7 is installed with support spring 8, the bottom of support spring 8 Limited block 9 is installed with, limited block 9 has spacing effect, prevents expansion link 10 from departing from loop bar 6, the bottom of limited block 9 is consolidated Dingan County is equipped with expansion link 10, and the bottom of expansion link 10 runs through loop bar 6 and extends to the lower section of loop bar 6, between two expansion links 10 Ratio wheel 11 is connected with, the surface of ratio wheel 11 is provided with Anti-slip cover 20, and Anti-slip cover 20 can increase frictional force, and raising subtracts The effect of speed, ratio wheel 11 is connected with chi bar 4.

The top of reduction box 5 and between two loop bars 6 intert be provided with motion bar 12, the top of reduction box 5 and correspondence The position of motion bar 12 is inlaid with the sleeve 13 being adapted with motion bar 12, one end of motion bar 12 and in reduction box 5 Portion is connected with cam 14, and cam 14 enables ratio wheel 11 to move up and down, and reaches the effect of deceleration, and cam 14 and deceleration Wheel 11 is connected, one end of the motion bar 12 and external stability positioned at reduction box 5 is provided with arm-tie 15, the surface of motion bar 12 And around compression spring 16 is provided between arm-tie 15 and sleeve 13, the coefficient of elasticity of compression spring 16 is more than support spring 8 Coefficient of elasticity.

When using, one hand of staff is pulled upwardly arm-tie 15, is then outwards extracting chi bar 4, measures work, Deng unclamping arm-tie 15 after the completion of use, chi bar 4 drives ratio wheel 11 to rotate during recovery, and ratio wheel 11 is with moving cam 14 Rotate, cam 14 moves downward ratio wheel 11 by the change in shape on surface, so as to improve between chi bar 4 and flap 3 Normal pressure, so as to increase frictional force, slows down the rebound velocity of chi bar 4.

In sum, resilience coil chi at a slow speed, by the cooperation to cam 14, ratio wheel 11, loop bar 6 and motion bar 12 Set, so make chi bar drive ratio wheel 11 to rotate during recovery, ratio wheel 11 is rotated with moving cam 14, and cam 14 makes Ratio wheel 11 is moved downward, and so increases the normal pressure of chi bar 4, so as to increase the frictional force of chi bar, slow down the resilience of chi bar Speed, so as to facilitate the use of people, it is to avoid dangerous generation, improves the safety in utilization of steel ruler.

Meanwhile, by the setting to card 19, contiguous block 17 and drawstring 18, make steel ruler more convenient to carry, it is so convenient The use of people, improves the use scope of steel ruler, so as to improve the operating efficiency of staff.

It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row His property is included, so that process, method, article or equipment including a series of key elements not only include those key elements, and And also include other key elements being not expressly set out, or also include for this process, method, article or equipment institute are intrinsic Key element.In the absence of more restrictions.By sentence " including one ... the key element for limiting, it is not excluded that including Also there is other identical element in the process of the key element, method, article or equipment ".

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. one kind resilience coil chi at a slow speed, including steel ruler body (1), it is characterised in that：The side connection of the steel ruler body (1) Have chi bar case (2), the inwall bottom of the chi bar case (2) is installed with flap (3), the inside of the chi bar case (2) and Intert positioned at the top of flap (3) and be provided with chi bar (4), the top of the chi bar case (2) is interspersed to be provided with reduction box (5), described The inwall top of reduction box (5) is symmetrically installed with loop bar (6), and the inwall top of each loop bar (6) is installed with cushion block (7), the bottom of the cushion block (7) is installed with support spring (8), and the bottom fixed installation of the support spring (8) is limited Position block (9), the bottom of the limited block (9) is installed with expansion link (10), and loop bar is run through in the bottom of the expansion link (10) (6) and the lower section of loop bar (6) is extended to, ratio wheel (11), the ratio wheel is connected between two expansion links (10) (11) it is connected with chi bar (4)；

The top of the reduction box (5) and between two loop bars (6) intert be provided with motion bar (12), the reduction box (5) Top and correspondence motion bar (12) position be inlaid with the sleeve (13) being adapted with motion bar (12), the motion bar (12) One end and the internal activity positioned at reduction box (5) is connected with cam (14), and cam (14) is connected with ratio wheel (11), One end of the motion bar (12) and the external stability positioned at reduction box (5) is provided with arm-tie (15), the motion bar (12) Surface and between arm-tie (15) and sleeve (13) around being provided with compression spring (16).

2. a kind of resilience coil chi at a slow speed according to claim 1, it is characterised in that：The steel ruler body (1) is away from chi The side of bar case (2) is installed with connecting plate (17), and the surface of the connecting plate (17) is installed with drawstring (18).

3. a kind of resilience coil chi at a slow speed according to claim 1, it is characterised in that：The preceding table of the steel ruler body (1) Face is installed with card (19).

4. a kind of resilience coil chi at a slow speed according to claim 1, it is characterised in that：The surface peace of the ratio wheel (11) Equipped with Anti-slip cover (20).

5. a kind of resilience coil chi at a slow speed according to claim 1, it is characterised in that：The front end of the chi bar (4) is fixed Fixture block (21) is installed.