CN213041108U

CN213041108U - Plastic linear tape

Info

Publication number: CN213041108U
Application number: CN202021723560.7U
Authority: CN
Inventors: 王莉
Original assignee: Third Hospital of Hebei Medical University
Current assignee: Third Hospital of Hebei Medical University
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-23
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a plastic linear measuring tape, which comprises a roller, a body and a shell; the body is provided with scale marks and is wound on the roller wheel, the tail end of the body is fixedly connected with the roller wheel, and the head end of the body extends out of the shell. A plastic linear tape measure can conveniently measure the length of pipe.

Description

Plastic linear tape

Technical Field

The utility model relates to a tape measure especially relates to a linear tape measure of plastic type.

Background

The prior clinical technical operation has a plurality of catheters which need to be placed in vivo, and the depth of the placed catheter needs to be observed every day after the catheter is placed so as to find whether the catheter is disconnected. Since the length of the catheter in the body is not easily measured, the length of the catheter in the body is generally measured only by measuring the length of the catheter in the body, and then the length of the catheter in the body is calculated by combining the total length of the catheter. Although the guide pipe is provided with scales, the scales are mostly arranged on every cm, the accuracy is not high enough, and the scales are often blocked, so that the reading is difficult. The existing ruler on the market can not measure according to the shape of the catheter, and the ruler is used for confirming the scales after estimation or linear catheter shape measurement is adopted clinically, so that the defects of inconvenient use and inaccurate measurement exist.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a plastic linear tape measure which can conveniently and accurately measure the length of a catheter arranged outside a human body so as to accurately judge the length of the catheter in the human body.

The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a plastic linear tape measure, which comprises a roller, a body and a shell; the roller is rotatably connected inside the shell, the body is provided with scale marks, the body is wound on the roller, the tail end of the body is fixedly connected with the roller, the head end of the body extends out of the shell, and the cross section of the body is cylindrical

Furthermore, be provided with the fixed orifices on the lateral wall of gyro wheel, set up first spliced pole in the fixed orifices, the terminal cover of body establish connect in on the first spliced pole to it is relatively fixed with first spliced pole through jackscrew.

Further, one side of shell is provided with the holding chamber, the gyro wheel endotheca is established and is connected with first wind spring, the one end of gyro wheel extends the holding intracavity and is connected with the ratchet, holding intracavity swivelling joint has the gag lever post, the one end of gag lever post is provided with the pawl, the pawl can with the mutual joint of ratchet, the pawl endotheca is established and is connected with the second wind spring, the pawl can with the mutual joint of ratchet.

Furthermore, the containing cavity is covered and connected with a cover plate, and one end of the limiting rod penetrates through the cover plate to be connected with a shifting handle outside the containing cavity; the cover plate is provided with a limiting groove, the limiting rod is provided with a limiting bulge, and the limiting bulge is rotatably connected in the limiting groove.

Further, the shell is provided with a threading opening for the body to penetrate out, and an expansion cavity is arranged at the threading opening.

Has the advantages that: the utility model discloses a linear tape measure of plastic type, the linear material of plastic adopts the tape measure form conveniently to doctorse and nurses and carry the use as measuring material. The linear ruler can be shaped according to the shape of the catheter, and the exposed length of the catheter is measured to judge the embedded depth of the catheter.

Drawings

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

fig. 2 is a schematic structural view of the interior of the accommodating cavity of the present invention;

FIG. 3 is a structural sectional view of the present invention;

FIG. 4 is a schematic structural view of the body of the present invention;

FIG. 5 is a schematic structural view of the roller of the present invention;

figure 6 is the utility model discloses a structure schematic diagram of spacing groove.

Detailed Description

The present invention will be further described with reference to fig. 1 to 6.

A flexible linear tape measure comprises a roller 1, a body 2 and a housing 3. The roller 1 is rotatably connected inside the shell 3, one end of the body 2 is fixedly connected to the roller 1, and the other end of the body extends out of the shell 3. The body 2 is provided with scale marks and scale values so as to facilitate reading. The body 2 is wound on the roller 1 and can be drawn out to the shell 3 for measurement.

Specifically, a fixing hole 7 is formed in a side wall of the roller 1, a first connecting column is arranged in the fixing hole 7, the tail end of the body 2 is sleeved and connected to the first connecting column, a jackscrew 8 is connected to the side wall of the fixing hole 7, and the jackscrew 8 can press a sleeve portion at the tail end of the body 2 into the fixing hole 7. The shell 3 is provided with a threading opening for the body 2 to penetrate out, the threading opening is provided with an expansion cavity 17, and when the body is stored in the shell, the sleeve part at the head end of the body is arranged in the expansion cavity.

A support column 18 is arranged in the shell 3, the roller 1 is sleeved on the support column 18, and a first coil spring 10 is arranged between the support column 18 and the roller 1. One side of the shell 3 is provided with a containing cavity 9, and the containing cavity 9 is covered and connected with a cover plate 13. One side of the roller 1 extends into the accommodating cavity 9 and is connected with a ratchet wheel 11, a limiting rod 12 is connected to the ratchet wheel 11, one end of the limiting rod 12 is connected with a pawl 19, and the other end of the limiting rod is connected with a shifting handle 14. The pawl 19 can be mutually clamped with the ratchet wheel 11, the limiting rod 12 is rotatably connected with the cover plate, and the shifting handle 14 is arranged outside the accommodating cavity 9. Under the matching of the pawl 19 and the ratchet wheel 11, the roller 1 can only rotate in one direction, thereby facilitating the pulling out of the body. The hand is pulled to rotate the limiting rod, the pawl 19 and the ratchet wheel 11 can be separated from each other by the rotation of the limiting rod, and the roller rotates to draw the body back into the shell 3 under the action of the first coil spring. In order to keep the pawl 19 in constant engagement with the ratchet wheel 11 without the action of external force, a second coil spring is also connected to the pawl 1. The pawl is provided with a connecting hole, and the second coil spring is arranged in the connecting hole. The cover plate 13 is provided with an arc-shaped limiting groove 15, the limiting rod is provided with a limiting bulge 16, and the limiting bulge is rotatably connected in the limiting groove 15. Under the action of the second coil spring, the limiting protrusion 16 is always abutted against the end A of the limiting groove 15, and the pawl and the ratchet wheel are clamped with each other at the moment; when an external force rotates the limiting rod, the limiting protrusion 16 rotates to abut against the end B of the limiting groove 15, the pawl and the ratchet wheel are separated from each other, and the roller rotates to withdraw the body into the shell.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A moldable linear tape measure, comprising: comprises a roller (1), a body (2) and a shell (3); gyro wheel (1) swivelling joint is inside in shell (3), be provided with the scale mark on body (2), body (2) winding connect in on gyro wheel (1), the end and gyro wheel (1) fixed connection of body (2), shell (3) are stretched out to the head end of body (2), body (2) cross section is cylindrical.

2. A moldable linear tape measure according to claim 1, wherein: be provided with fixed orifices (7) on the lateral wall of gyro wheel (1), set up first spliced pole in fixed orifices (7), body (2) end cover establish connect in on the first spliced pole to through jackscrew (8) and first spliced pole relatively fixed.

3. A moldable linear tape measure according to claim 1, wherein: one side of shell (3) is provided with holding chamber (9), the cover is established and is connected with first wind spring (10) in gyro wheel (1), the one end of gyro wheel (1) extends in holding chamber (9) and is connected with ratchet (11), holding chamber (9) internal rotation is connected with gag lever post (12), the one end of gag lever post (12) is connected with pawl (19) the cover is established and is connected with the second wind spring in pawl (19), pawl (19) can with the mutual joint of ratchet (11).

4. A moldable linear tape measure according to claim 3, wherein: the containing cavity (9) is covered and connected with a cover plate (13), and one end of the limiting rod (12) penetrates through the cover plate (13) to be connected with a shifting handle (14) outside the containing cavity (9); the cover plate (13) is provided with a limiting groove (15), the limiting rod (12) is provided with a limiting bulge (16), and the limiting bulge (16) is rotatably connected in the limiting groove (15).

5. A moldable linear tape measure according to claim 1, wherein: the shell (3) is provided with a threading opening for the body (2) to penetrate out, and an expansion cavity (17) is arranged at the threading opening.