CN217818411U

CN217818411U - Steel tape capable of preventing hand from being cut

Info

Publication number: CN217818411U
Application number: CN202222279354.7U
Authority: CN
Inventors: 崔涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-11-15
Anticipated expiration: 2032-08-29

Abstract

The utility model relates to a steel tape technical field especially relates to a steel tape of anti-cutting hand, has solved the problem that the hand was cut easily at the too fast ruler recovery speed of traditional steel tape among the prior art. The utility model provides a steel tape of anti-cutting hand, includes steel tape body, fixed chamber and speed reduction chamber, and the chi body stretches out and passes through fixed chamber and speed reduction chamber respectively from the opening part of steel tape body, and fixed chamber is including rotating piece, screw rod, swivel nut, first locating part, top board and holding down plate, it is located to rotate the piece fixed chamber upper portion, screw rod one end with rotate the piece fixed, the other end passes fixed chamber extends to inside, the swivel nut is located fixed intracavity and with the screw rod spiro union, the top board with the screw rod is fixed, top board and holding down plate all adopt rubber to make and with chi body centrosymmetry, top board and holding down plate terminal surface shape with the chi body is corresponding, first locating part is fixed with the swivel nut. The utility model discloses can prevent that the steel tape measure from cutting the hand.

Description

Steel tape capable of preventing hand from being cut

Technical Field

The utility model relates to a steel tape technical field especially relates to a steel tape of anti-cutting hand.

Background

Steel tape measures are common measuring tools in daily life, are one of essential tools for families, and along with the development of the society, the types of the steel tape measures are more and more, and the steel tape measures can be divided into self-winding type tape measures, braking type tape measures and swinging type tape measures, and are widely applied to various aspects of the society.

Staff need withdraw the dipperstick in the steel tape measure when using the steel tape measure, and the dipperstick is withdrawing the in-process, because the speed that the dipperstick was withdrawed is too fast for the dipperstick cuts staff's hand easily.

A steel tape for preventing hand cutting is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: the utility model provides a hand-cutting-preventing steel tape which solves the problem that the hand is easily cut when the recovery speed of the conventional steel tape is too fast.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the steel tape comprises a steel tape body, a fixing cavity and a speed reducing cavity, wherein the tape body extends out of an opening of the steel tape body and passes through the fixing cavity and the speed reducing cavity respectively;

the fixed chamber includes knob, screw rod, swivel nut, first locating part, top board and holding down plate, the knob is located fixed chamber upper portion, screw rod one end and knob are fixed, the other end passes fixed chamber extends to inside, the swivel nut is located fixed intracavity and with the screw rod spiro union, the top board with the screw rod is fixed, top board and holding down plate all adopt rubber to make and with chi body central symmetry, top board and holding down plate terminal surface shape with the chi body is corresponding, first locating part is fixed with the swivel nut.

Furthermore, the speed reduction cavity comprises two idler wheels, connecting pieces, a second limiting piece and a synchronizing mechanism, the idler wheels are symmetrically arranged up and down in the center of the ruler body, the idler wheels are respectively fixed with the connecting pieces, the connecting pieces are fixed with the synchronizing mechanism, the synchronizing mechanism can enable the two idler wheels to be close to or far away from each other, and the second limiting pieces are respectively fixed through the corresponding connecting pieces.

Furthermore, the synchronizing mechanism comprises a first rack, a second rack, a gear and a T-shaped rotating part, one end of the first rack and one end of the second rack are fixed to the corresponding connecting pieces, the gear is located between the first rack and the second rack and meshed with the first rack and the second rack respectively, a rod-shaped part of the T-shaped rotating part penetrates through the fixing cavity and extends to the inside, and the gear and the rod-shaped part of the T-shaped rotating part are coaxially fixed.

Furthermore, the connecting piece adopts an elastic connecting piece.

Furthermore, elastic connecting piece includes outer pole, interior pole and elastic component, interior pole and outer pole slip cup joint, the elastic component is installed on interior pole to can restrict interior pole to the outer pole inner chamber slides.

The utility model has the advantages as follows:

through setting up the speed reduction chamber, can adjust the answer speed of steel tape measure, thereby can reduce the probability that the ruler cuts injury personnel, the user rotates T shape and rotates the piece, the rotation that T shape rotated the piece can make the gear that its free end set up rotate, first rack and second rack have been engaged with on the gear respectively, when gear revolve, can make the fixed elastic connection spare of one end that first rack and second rack are relative be close to each other, thereby make the gyro wheel of fixing on elastic connection spare constantly be close to, when the gyro wheel pastes tight chi body, the gyro wheel adopts the rubber material, can increase and the surperficial friction of chi body, it can make elastic connection spare's compression degree strengthen to continue to rotate T shape rotation piece, thereby increase the degree of pasting of gyro wheel and chi body, thereby control the recovery speed of the chi body.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural view of the speed reduction chamber of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2 at A;

fig. 5 is an enlarged view of the structure at B of fig. 2.

Reference numerals: 1. a steel tape body; 2. a fixed cavity; 3. a deceleration chamber; 4. a ruler body; 5. a knob; 6. a screw; 7. a threaded sleeve; 8. a first limit piece; 9. an upper pressure plate; 10. a lower pressing plate; 11. a roller; 12. an elastic connecting member; 14. a second limiting member; 15. a first rack; 16. a second rack; 17. a gear; 18. a T-shaped rotating member; 19. a spring bolt; 131. an elastic member; 132. an inner rod; 133. an outer rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside", "outside", "upper", and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the utility model is conventionally placed when in use, and are only for convenience of describing the utility model and simplifying the description, but not for indicating or implying that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, the hand-cutting-resistant steel tape comprises a steel tape body 1, a fixing cavity 2 and a speed reducing cavity 3, wherein a tape body 4 extends out of an opening of the steel tape body 1 and respectively passes through the fixing cavity 2 and the speed reducing cavity 3;

the fixed cavity 2 comprises a knob 5, a screw rod 6, a threaded sleeve 7, a first limiting part 8, an upper pressing plate 9 and a lower pressing plate 10, the knob 5 is positioned at the upper part of the fixed cavity 2, one end of the screw rod 6 is fixed with the knob 5, the other end of the screw rod passes through the fixed cavity 2 and extends to the inside, the threaded sleeve 7 is positioned in the fixed cavity 2 and is in threaded connection with the screw rod 6, the upper pressing plate 9 is fixed with the screw rod 6, the upper pressing plate 9 and the lower pressing plate 10 are both made of rubber and are symmetrical with the center of the ruler body 4, the end surface shapes of the upper pressing plate 9 and the lower pressing plate 10 correspond to the ruler body 4, and the first limiting part 8 is fixed with the threaded sleeve 7;

in this embodiment, pull out chi body 4 during the use, then restrict chi body 4's recovery through speed reduction chamber 3, when needs are fixed to chi body 4, it rotates to rotate knob 5 and drive screw rod 6, the rotation of screw rod 6 can make swivel nut 7 move downwards, thereby make the last fixed top board 9 downstream of swivel nut 7, thereby make top board 9 constantly move down to bottom board 10, thereby realize chi body 4's fixed, the locating part plays and prevents that co-rotation from appearing in screw rod 6 and swivel nut 7, thereby the problem of unable removal.

Specifically, the speed reduction cavity 3 comprises two idler wheels 11, connecting pieces, second limiting pieces 14 and a synchronizing mechanism, the idler wheels 11 are symmetrically arranged up and down from the center of the ruler body 4, the idler wheels 11 are respectively fixed with the connecting pieces, the connecting pieces are fixed with the synchronizing mechanism, the synchronizing mechanism can enable the two idler wheels 11 to be close to or far away from each other, and the second limiting pieces 14 are respectively fixed with the corresponding connecting pieces;

in this embodiment, the synchronous mechanism will make the connecting member fixed on the corresponding roller 11 move, and make the roller 11 continuously approach until the roller 11 clings to the ruler body 4, thereby achieving the purpose of limiting the movement speed of the ruler body 4.

Specifically, the synchronization mechanism comprises a first rack 15, a second rack 16, a gear 17 and a T-shaped rotating part 18, one end of each of the first rack 15 and the second rack 16 is fixed to a corresponding connecting piece, the gear 17 is located between the first rack 15 and the second rack 16 and is meshed with the first rack 15 and the second rack 16 respectively, a rod-shaped part of the T-shaped rotating part 18 penetrates through the fixed cavity 2 and extends to the inside, the gear 17 and a rod-shaped part of the T-shaped rotating part 18 are coaxially fixed, and a spring bolt 19 is arranged on the T-shaped rotating part 18;

in this embodiment, the rotation of the T-shaped rotating member 18 causes the gear 17 to rotate, and when the gear 17 rotates, the first rack 15 and the second rack 16 engaged with the gear 17 move simultaneously, and at this time, the connecting member moves downwards, so that the rollers 11 fixed to the respective members approach each other and abut against the ruler body 4, thereby restricting the movement of the ruler body 4, and the rotation of the T-shaped rotating member 18 is restricted by the spring bolt 19.

The connecting piece adopts an elastic connecting piece 12, the elastic connecting piece 12 comprises an outer rod 133, an inner rod 132 and an elastic piece 131, the inner rod 132 and the outer rod 133 are sleeved in a sliding mode, and the elastic piece 131 is installed on the inner rod 132 and can limit the inner rod 132 to slide towards the inner cavity of the outer rod 133;

in this embodiment, after the roller 11 is tightly attached to the ruler body 4, when the roller 11 is tightly attached to the ruler body 4, the roller 11 is made of rubber, which can increase the friction with the surface of the ruler body 4, and the T-shaped rotating member 18 is continuously rotated to increase the compression degree of the elastic connecting member 12, thereby increasing the tight attachment degree of the roller 11 and the ruler body 4, and controlling the recovery speed of the ruler body 4.

The working principle is as follows: through setting up speed reduction chamber 3, can adjust the return speed of steel tape measure, thereby can reduce the probability that the ruler cuts personnel, the user rotates T shape and rotates piece 18, the rotation of T shape rotation piece 18 can make the gear 17 that its free end set up rotate, first rack 15 and second rack 16 have been meshed on the gear 17 respectively, when gear 17 rotates, can make the fixed elastic connection spare 12 of the relative one end of first rack 15 and second rack 16 be close to each other, thereby make the gyro wheel 11 of fixing on elastic connection spare 12 constantly be close to, when gyro wheel 11 pastes tight ruler body 4, gyro wheel 11 adopts the rubber material, can increase the friction with ruler body 4 surface, it can make the compression degree of elastic connection spare 12 increase to continue to rotate T shape rotation piece 18, thereby increase the degree of laminating of gyro wheel 11 and ruler body 4, thereby control the recovery speed of ruler body 4.

Claims

1. The hand cutting-resistant steel tape is characterized by comprising a steel tape body (1), a fixing cavity (2) and a deceleration cavity (3), wherein a tape body (4) extends out of an opening of the steel tape body (1) and respectively passes through the fixing cavity (2) and the deceleration cavity (3);

fixed chamber (2) include knob (5), screw rod (6), swivel nut (7), first locating part (8), top board (9) and holding down plate (10), knob (5) are located fixed chamber (2) upper portion, screw rod (6) one end and knob (5) are fixed, the other end passes fixed chamber (2) and extend to inside, swivel nut (7) are located in fixed chamber (2) and with screw rod (6) spiro union, top board (9) with screw rod (6) are fixed, top board (9) and holding down plate (10) all adopt rubber to make and with chi body (4) central symmetry, top board (9) and holding down plate (10) terminal surface shape with chi body (4) are corresponding, first locating part (8) are fixed with swivel nut (7).

2. The steel tape measure for preventing hand cutting according to claim 1, wherein the speed reducing cavity (3) comprises two rollers (11), a connecting piece, a second limiting piece (14) and a synchronizing mechanism, the two rollers (11) are arranged symmetrically up and down from the center of the tape body (4), the connecting piece is fixed on each roller (11) and fixed with the synchronizing mechanism, the synchronizing mechanism can enable the two rollers (11) to approach or separate from each other, and the second limiting piece (14) is fixed with the corresponding connecting piece.

3. A cut-hand-resistant steel tape according to claim 2, characterized in that the synchronizing mechanism comprises a first rack (15), a second rack (16), a gear (17) and a T-shaped rotating member (18), one end of the first rack (15) and the second rack (16) being fixed to the respective connecting member, the gear (17) being located between the first rack (15) and the second rack (16) and being engaged with the first rack (15) and the second rack (16), respectively, the shaft of the T-shaped rotating member (18) passing through the fixing chamber (2) and extending to the inside, the shaft of the gear (17) and the shaft of the T-shaped rotating member (18) being coaxially fixed, the T-shaped rotating member (18) being provided with a spring latch (19).

4. A cut-hand-resistant steel tape measure according to claim 3, wherein the connector is a resilient connector (12).

5. A cut-hand-resistant steel tape as claimed in claim 4, characterized in that the elastic connecting member (12) comprises an outer rod (133), an inner rod (132) and an elastic member (131), the inner rod (132) and the outer rod (133) are slidably sleeved, and the elastic member (131) is mounted on the inner rod (132) and can limit the inner rod (132) from sliding towards the inner cavity of the outer rod (133).