CN215130348U

CN215130348U - Transverse measuring ruler

Info

Publication number: CN215130348U
Application number: CN202120996349.0U
Authority: CN
Inventors: 黄广志; 张晓永; 董骧
Original assignee: Tianjin Zhengtian Medical Instrument Co Ltd; Beijing Naton Medical Technology Holdings Co Ltd
Current assignee: Tianjin Zhengtian Medical Instrument Co Ltd; Beijing Naton Medical Technology Holdings Co Ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-14
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a cross measuring tape belongs to measuring tool technical field, cross measuring tape is including a pair of measuring arm that can relative movement, the anterior kink that is buckling downwards of a pair of measuring arm, the end of kink is equipped with the clamping part that is used for the two longitudinal joint bars of the volume of measurement of centre gripping, and the middle part of one of them measuring arm is equipped with and is used for showing the scale of the centre-to-centre spacing between two longitudinal joint bars of the volume of measurement. The utility model discloses a violently even measuring tape measures conveniently, and the reading and the accuracy of being convenient for.

Description

Transverse measuring ruler

Technical Field

The utility model relates to a measuring tool technical field especially indicates a violently link measuring tape.

Background

With the development of medical foundation, related disciplines and industrial technology, many basic concepts, diagnostic standards, therapeutic concepts and therapeutic methods in the field of spinal surgery are continuously perfected, the therapeutic level of spinal surgery diagnosis is continuously improved, and various spinal internal fixation systems appear in the market.

Spinal internal fixation systems typically include at least a pair of longitudinal connecting rods that are aligned along the axis of the vertebrae and then connected to the vertebrae. In addition, the spinal internal fixation system usually further includes a transverse connecting device (simply "transverse connection"), which is used to connect with the longitudinal connecting rod in the spinal internal fixation system to form a frame structure, so as to provide stronger torsional rigidity and prevent the rotation of the whole system.

When the spinal internal fixation system is implanted into a human body, the central distance of the parts of the two longitudinal connecting rods for installing the transverse connection is required to be measured, the transverse connection with a proper specification is selected according to measurement data for installing and fixing, and the measurement mode has the defect that the measured part is deeply inserted into the human body, so that the measurement is inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a measure convenient violently even measuring tape.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

the utility model provides a cross-linking measuring tape, includes a pair of measuring arm that can relative movement, the anterior kink that is the decurrent kink of a pair of measuring arm, the end of kink is equipped with the clamping part that is used for the centre gripping two vertical connective bars that await measuring, and the middle part of one of them measuring arm is equipped with the scale that is used for showing the centre-to-centre spacing between two vertical connective bars that await measuring.

Further, the bending part is an arc bending part.

Furthermore, the bending angle of the arc-shaped bending part is 120-140 degrees.

Further, the clamping part is an arc-shaped clamping part with an opening facing the inner side.

Furthermore, the middle part of one of the measuring arms is hinged with the scale, the scale is provided with scales, the middle part of the other measuring arm is hinged with a sliding groove in sliding connection with the scale, and the sliding groove is provided with a scribed line for reading the scales.

Further, the scale is an arc scale, and the sliding groove is a U-shaped groove matched with the upper side and the lower side of the scale.

Further, the scale is a straight scale, and the sliding groove is an L-shaped groove matched with one side of the scale.

Furthermore, the tail end of the sliding groove is provided with a transverse blocking arm.

Furthermore, the rear ends of the pair of measuring arms are hinged through a pin shaft.

Furthermore, the transverse connection measuring ruler further comprises a torsion spring, the middle part of the torsion spring is sleeved on the pin shaft, and two end parts of the torsion spring are abutted against the inner sides of the rear ends of the pair of measuring arms.

The utility model discloses following beneficial effect has:

the transverse connection measuring scale comprises a pair of measuring arms which can move relatively, and the front parts of the measuring arms are bending parts which are bent downwards, so that the visual field of the operation is not interfered, and the reading is convenient; the end of kink is equipped with the clamping part that is used for the centre gripping two vertical connective bars that await measuring, and the middle part of one of them measuring arm is equipped with the scale that is used for showing the centre-to-centre spacing between two vertical connective bars that await measuring, behind the vertical connective bar of clamping part centre gripping, can utilize the scale direct reading in measuring arm middle part to obtain the centre-to-centre spacing of two vertical connective bars. The utility model discloses the direct reading obtains the centre-to-centre spacing of two longitudinal tie rods, belongs to the non-pitch arc distance of linear distance, the utility model discloses utilize the part that the cross measuring tape did not go deep into the human body to carry out the reading, it is convenient to measure, the reading of being convenient for. The utility model discloses a violently even measuring tape, simple structure measures the convenience, and the reading of being convenient for and accurate.

Drawings

FIG. 1 is a schematic view of the overall structure of the lateral measuring tape of the present invention;

FIG. 2 is an exploded view of the cross measuring tape of the present invention;

FIG. 3 is a partially enlarged schematic view of the cross measuring tape of the present invention;

fig. 4 is a schematic cross-sectional view of a sliding groove according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a sliding groove according to another embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a sliding groove according to another embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The utility model provides a cross-connecting measuring ruler, as shown in fig. 1-6, including a pair of measuring

arm

1, 2 that can relative movement, the

anterior kink

11, 21 for buckling downwards of a pair of

measuring arm

1, 2, the end of

kink

11, 21 is equipped with the clamping part 12, 22 that is used for the centre gripping to measure two vertical connecting rods 10 of volume, and the middle part of one of them measuring arm 1 is equipped with and is used for showing the scale 3 of the centre-to-centre spacing between two vertical connecting rods 10 of volume of measuring.

When the measuring arm is used, the clamping parts 12 and 22 of the pair of measuring

arms

1 and 2 are respectively arranged at the two longitudinal connecting rods 10 to be measured, and after the two longitudinal connecting rods 10 are clamped by the clamping parts 12 and 22 of the

measuring arms

1 and 2, the scale/numerical value displayed on the scale 3 is the center distance (linear distance) of the two longitudinal connecting rods.

The transverse connection measuring scale comprises a pair of measuring arms which can move relatively, and the front parts of the measuring arms are bending parts which are bent downwards, so that the visual field of the operation is not interfered, and the reading is convenient; the end of kink is equipped with the clamping part that is used for the centre gripping two vertical connective bars that await measuring, and the middle part of one of them measuring arm is equipped with the scale that is used for showing the centre-to-centre spacing between two vertical connective bars that await measuring, behind the vertical connective bar of clamping part centre gripping, can utilize the scale direct reading in measuring arm middle part to obtain the centre-to-centre spacing of two vertical connective bars. The utility model discloses the direct reading obtains the centre-to-centre spacing of two longitudinal tie rods, belongs to the non-pitch arc distance of linear distance, the utility model discloses utilize the part that the cross measuring tape did not go deep into the human body to carry out the reading, it is convenient to measure, the reading of being convenient for. The utility model discloses a violently even measuring tape, simple structure measures the convenience, and the reading of being convenient for and accurate. The utility model is suitable for a carry out centre-to-centre spacing measurement to the position that two connective bars need install horizontal in the spinal surgery process.

As shown in fig. 2, the

bent portions

11, 21 are preferably arc-shaped bent portions. The bending angle of the arc-shaped bending part is preferably 120-140 degrees, and the using effect is optimal at the moment.

To facilitate the clamping of the two longitudinal connecting rods 10 to be measured, the clamping portions 12, 22 may be arc-shaped clamping portions open towards the inside.

The utility model discloses in, scale 3 both can be the electron scale, also can be mechanical scale, when being mechanical scale, the preferred following structural style that adopts:

as shown in fig. 2-3, the middle of one of the measuring arms 1 is hinged (specifically, hinged by a pin rivet 32) to the scale 3, the scale 3 is provided with a scale 31, the middle of the other measuring arm 2 is hinged (specifically, hinged by a plug-in post 41 on the lower surface of the sliding groove 4) to a sliding groove 4 slidably connected to the scale 3, and the sliding groove 4 is provided with a scale 42 for reading the scale 31. In the embodiment shown in fig. 2, the right measuring arm 1 is hinged with a scale 3, and the left measuring arm 2 is hinged with a sliding groove 4.

arms

1 and 2 are respectively arranged at the two longitudinal connecting rods 10 to be measured, the two longitudinal connecting rods 10 are clamped, the scale 3 slides in the sliding groove 4 in the process that the two longitudinal connecting rods 10 are clamped by the measuring

arms

1 and 2, and after the two longitudinal connecting rods 10 are clamped by the clamping parts 12 and 22 of the measuring

arms

1 and 2, the scale 31 indicated by the scribed lines 42 on the sliding groove 4 is the center distance (linear distance) of the two longitudinal connecting rods.

The utility model directly reads the center distance of two longitudinal connecting rods, which belongs to the non-arc distance of the linear distance, if the arc distance is read, the ruler is directly fixed on one measuring arm, and the accurate reading can be realized through the scribed line on the other measuring arm; however, since the linear distance is read, if the scale is directly fixed on one of the measuring arms (not hinged), the scale line on the other measuring arm and the scale cannot be kept perpendicular (or the scale line is difficult to keep parallel to the scale on the scale) during the movement of the two measuring arms, so that the reading cannot be accurately determined, and the reading is inaccurate; the utility model provides a scale and sliding tray all articulate on two measuring arms, at the removal in-process of two measuring arms, and the groove on the sliding tray can remain perpendicular with the scale all the time (the groove on the sliding tray can keep parallel with the scale on the scale promptly) to can accurate reading.

According to the different structural style of scale 3 and sliding tray 4, the utility model discloses can have following embodiment.

Example 1

As shown in fig. 4, the scale 3 is an arc scale, and the sliding groove 4 is a U-shaped groove that fits with the upper and lower sides of the scale 3. Preferably, the end of the sliding groove 4 may be provided with a transverse blocking arm 43, so as to prevent the scale 3 from vertically shaking in the sliding groove 4, and thus, the reading is more accurate. Further, the lower surface of the lateral stop arm 43 may be beveled to form a slot in the dovetail as shown in the embodiment of FIG. 2.

Example 2

As shown in fig. 5, the scale 3 ' is a straight scale, and the slide groove 4 ' is an L-shaped groove fitted to the upper side of the scale 3 '. Preferably, the end of the sliding groove 4 ' may be provided with a lateral stop arm 44, so as to prevent the scale 3 ' from vertically shaking in the sliding groove 4 ', and to make the reading more accurate.

Example 3

As shown in fig. 6, the scale 3 'is a straight scale, and the slide groove 4 ″ is an L-shaped groove fitted to the lower side of the scale 3'. Preferably, the end of the sliding groove 4 "may be provided with a transverse arm 45, so as to prevent the scale 3' from vertically shaking in the sliding groove 4" and make the reading more accurate.

In the above embodiment, in order to facilitate fixing the rear ends of the pair of measuring

arms

1, 2, the rear ends of the pair of measuring

arms

1, 2 may be hinged by the pin 5. The transverse connection measuring ruler can further comprise a torsion spring 6, the middle part of the torsion spring 6 is sleeved on the pin shaft 5, and two end parts of the torsion spring 6 are abutted against the inner sides of the rear ends of the pair of measuring

arms

1 and 2, so that the pair of measuring

arms

1 and 2 are kept in a spreading state all the time.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The transverse measuring ruler is characterized by comprising a pair of measuring arms (1 and 2) capable of moving relatively, the front parts of the measuring arms (1 and 2) are bent parts (11 and 21) which are bent downwards, clamping parts (12 and 22) used for clamping two longitudinal connecting rods (10) to be measured are arranged at the tail ends of the bent parts (11 and 21), and a ruler (3) used for displaying the center distance between the two longitudinal connecting rods (10) to be measured is arranged in the middle of one measuring arm (1).

2. The transverse measuring ruler according to claim 1, wherein the bend (11, 21) is an arc bend.

3. The cross-linking measuring tape as claimed in claim 2, wherein the bending angle of the curved bending part is 120 degrees and 140 degrees.

4. Transverse measuring ruler according to claim 1, characterized in that the clamping parts (12, 22) are arc-shaped clamping parts open towards the inside.

5. The cross-linking measuring ruler according to claim 1, wherein the middle part of one measuring arm (1) is hinged with the scale (3), the scale (3) is provided with scales (31), the middle part of the other measuring arm (2) is hinged with a sliding groove (4) which is connected with the scale (3) in a sliding way, and the sliding groove (4) is provided with scribed lines (42) for reading the scales (31).

6. A cross-linking measuring tape according to claim 5, wherein the scale (3) is an arc-shaped scale, and the sliding groove (4) is a U-shaped groove which is engaged with the upper and lower sides of the scale (3).

7. A cross-linking measuring tape according to claim 5, wherein the scale (3) is a straight scale and the sliding groove (4) is an L-shaped groove that fits with a single side of the scale (3).

8. Cross-linking measuring tape according to claim 5, characterized in that the ends of the sliding grooves (4) are provided with transverse stop arms (43, 44, 45).

9. An articulated measuring ruler according to any of claims 1-8, wherein the rear ends of the pair of measuring arms (1, 2) are hinged by a pin (5).

10. The cross-linking measuring tape according to claim 9, further comprising a torsion spring (6), wherein the middle part of the torsion spring (6) is sleeved on the pin shaft (5), and two end parts of the torsion spring (6) are abutted against the inner sides of the rear ends of the pair of measuring arms (1, 2).