CN218545525U

CN218545525U - Portable scale

Info

Publication number: CN218545525U
Application number: CN202223044961.1U
Authority: CN
Inventors: 巩平; 纪文宇; 黄海松; 张�杰; 王飞; 陈天凯; 柴卓慧; 蒋伟东
Original assignee: Army Engineering University of PLA
Current assignee: Army Engineering University of PLA
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-02-28
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a portable scale, which comprises a graduated scale, wherein the scale is provided with scale marks on one long edge, and a telescopic component is connected in the middle of the long edge which is not provided with scale marks on the graduated scale; an observation column is connected to one end, far away from the graduated scale, of the telescopic assembly, an observation ring is connected to one end, far away from the telescopic assembly, of the observation column, an observation hole is formed in the middle of the observation ring, and the axis of the observation hole is perpendicular to the surface of the graduated scale when the telescopic assembly is in a stretching state; be provided with first cylinder air level and second cylinder air level on the scale, the axis of first cylinder air level is perpendicular with the long limit of scale, and the axis of second cylinder air level is parallel with the long limit of scale. The telescopic assembly can be attached to the graduated scale when being carried, so that the size of the scale is reduced when being carried, and the scale is convenient to carry; and when using the scale, only need stretch out the flexible subassembly, the position of readjustment scale can begin to measure, easy operation, and promoted the accuracy of surveying the distance.

Description

Portable scale

Technical Field

The utility model relates to a apart from the survey and drawing field, specifically be a portable scale.

Background

In operation, military personnel often need to observe the terrain and roughly measure the distance between the military personnel and a target point, and then reasonably select weaponry with different ranges on a battlefield to implement accurate and effective fire fighting on enemies. Therefore, it is important to accurately determine the target distance. At present, distance values are obtained mainly by means of an eye jump method, a north arrow method and the like, but the accuracy degree is not high enough; the distance measurement can be carried out by means of equipment such as a telescope and a laser distance measuring machine, but the defects of high cost, high energy consumption, easiness in exposure, inconvenience in carrying equipment and the like exist. Therefore, it is necessary to design a portable scale which can measure the distance on the spot at low cost and accurately measure the distance.

Disclosure of Invention

For overcoming the defects of the prior art, the utility model provides a portable scale for at least one of the prior art problems above the solution.

The utility model discloses a realize through following technical scheme:

a portable scale comprises a graduated scale, wherein scale marks are arranged on one long edge of the graduated scale, and a telescopic assembly is connected in the middle of the long edge of the graduated scale, which is not provided with the scale marks; an observation column is connected to one end, far away from the graduated scale, of the telescopic assembly, an observation ring is connected to one end, far away from the telescopic assembly, of the observation column, an observation hole is formed in the middle of the observation ring, and the axis of the observation hole is perpendicular to the surface of the graduated scale when the telescopic assembly is in a stretching state; the graduated scale is provided with a first cylindrical air level and a second cylindrical air level, the axis of the first cylindrical air level is perpendicular to the long edge of the graduated scale, and the axis of the second cylindrical air level is parallel to the long edge of the graduated scale.

In the technical scheme, when the scale is carried, the telescopic assembly is contracted, so that the size of the scale is reduced, and the scale is convenient to carry; when the scale with the scale being densely located is used, the telescopic component is stretched, when the telescopic component is stretched, the telescopic component is perpendicular to the scale, the axis of the observation column is parallel to the surface of the scale, and the connecting line of the center of the observation hole on the observation ring and the center scale of the scale is perpendicular to the surface of the scale; the position of adjustment scale, make the long limit or the minor face of scale parallel with the water flat line through observing first cylinder air level or second cylinder air level, the user sees through the observation hole through eyes and observes, make the central scale of scale and the coincidence of one side of target object, and observe the scale registration with the coincidence of target object opposite side, this moment this scale registration to the number of graduations of central scale be the secret number that the observation obtained promptly, adopt the secret formula to calculate the distance of observing between the position to the position of target object place based on the size of secret number and target object.

Furthermore, the telescopic assembly is hinged with the graduated scale through a first rotating shaft, and the axis of the first rotating shaft is parallel to the surface of the graduated scale; the telescopic assembly comprises a first rotating plate, one end, away from the first rotating shaft, of the first rotating plate is hinged to a second rotating plate through a second rotating shaft, one end, away from the second rotating shaft, of the second rotating plate is hinged to a third rotating plate through a third rotating shaft, and one end, away from the third rotating shaft, of the third rotating plate is connected with the observation column.

When the scale is carried, the first rotating plate rotates around the first rotating shaft, so that the first rotating plate is parallel to the scale, and one side of the first rotating plate close to the scale is attached to the side edge of the scale; the second rotating plate rotates around a second rotating shaft, so that the second rotating shaft is parallel to the graduated scale; the third rotating plate rotates around the third rotating shaft, so that the third rotating plate is parallel to the graduated scale, the observation column connected with the third rotating plate is attached to the graduated scale, and the first rotating plate and the third rotating plate are on the same plane and are attached to the second rotating plate, so that the size of the scale in a storage state is reduced, and the scale is convenient to carry; when the scale is used, the third rotating plate, the second rotating plate and the first rotating plate are sequentially rotated to enable the three rotating plates to be collinear and perpendicular to the scale, and after the position of the scale is adjusted, measurement can be started.

Furthermore, the telescopic assembly is hinged with the graduated scale through a fourth rotating shaft, and the axis of the fourth rotating shaft is parallel to the surface of the graduated scale; the telescopic assembly comprises two first rotating arms which are respectively connected to the bottom of the side face and the top of the side edge of the fourth rotating shaft; two the one end that the fourth rotation axis was kept away from to first swinging boom is connected through the fifth rotation axis, and the fifth rotation axis is connected with first flexible arm, the flexible arm of second has been cup jointed to the one end that the fifth rotation axis was kept away from to first flexible arm, the flexible arm of second is kept away from the one end of first flexible arm and is connected with the observation post.

When the scale is used, the first telescopic arm rotates around a fifth rotating shaft, so that the first telescopic arm is parallel to the two first rotating arms, then the two first rotating arms rotate around a fourth rotating shaft, so that the two first rotating arms are perpendicular to the scale, finally the second telescopic arm is pulled out from the first telescopic arm to the tail end of the first telescopic arm, at the moment, the observation column is parallel to the surface of the scale, and after the position of the scale is adjusted (the long edge or the short edge of the scale is parallel to the horizontal line, and the surface of the scale is perpendicular to the horizontal plane), the measurement can be started; after the use, push back the flexible arm of second to the inside of first flexible arm, then through adjusting the fourth rotation axis for two first swinging booms are parallel with the scale, continue to adjust the fifth rotation axis, make first flexible arm parallel with the scale, observe the side of post laminating at the scale this moment.

Furthermore, the long edge of the graduated scale, which is far away from the dense scale, is connected with an auxiliary scale, the length of the auxiliary scale is equal to that of the graduated scale, the width of the auxiliary scale is matched with that of the fourth rotating shaft, and the surface of the auxiliary scale is parallel to that of the graduated scale; the fourth rotation axis is provided in the middle of the sub scale.

When carrying, when rotatory to being parallel with the scale with two first swinging booms, two first swinging booms can laminate on vice chi, avoid carrying in-process two first swinging booms and the first flexible arm of being connected with it and second flexible arm because of external force break.

Furthermore, a round bar base perpendicular to the surface of the scale is arranged in the middle of a long edge of the scale, on which no dense scale is arranged, the telescopic assembly comprises a first round bar detachably sleeved on the round bar base, a second round bar is sleeved at one end, away from the round bar base, of the first round bar, a third round bar is sleeved at one end, away from the first round bar, of the second round bar, and one end, away from the second round bar, of the third round bar is connected with the observation column; the telescopic assembly further comprises an elastic connecting rope, one end of the elastic connecting rope is connected with the round rod base, and the other end of the elastic connecting rope sequentially penetrates through the interior of the first round rod, the interior of the second round rod and the interior of the third round rod and then is fixedly connected into the third round rod.

When the scale is carried, the first round rod, the second round rod and the third round rod are detached, and the three round rods are attached together, so that the size of the scale is reduced; when the scale is used, one end of the first round rod, which is close to the scale, is inserted on the round rod base, the second round rod is sleeved on one end of the first round rod, which is far away from the scale, and the third round rod is sleeved on one end of the second round rod, which is far away from the first round rod, wherein the first round rod, the second round rod and the third round rod are arranged between one another and are all vertical to the scale; at the moment, the observation column connected with the third round rod is parallel to the surface of the graduated scale, and measurement can be started after the position of the graduated scale is adjusted.

Furthermore, be provided with the magic subsides on the scale, when flexible subassembly was in the shrink state, the magic was pasted and is used for fixed flexible subassembly.

When carrying the scale, with first pole, second pole and third pole by the fixed laminating of magic subsides on the scale surface, play the effect of fixed above-mentioned three pole, avoid producing between scale and the three pole when accomodating and taking the scale and interfere.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) The utility model provides a portable scale, when carrying the scale, the telescopic component can be attached to the graduated scale, thereby reducing the size of the scale when carrying the scale and facilitating carrying; when the scale is used, the telescopic assembly is only required to be stretched out, the position of the graduated scale is adjusted again, the measurement can be started, the operation is simple, and when the telescopic assembly is stretched out, the telescopic assembly is perpendicular to the surface of the graduated scale, so that the accuracy of the measured distance is improved.

(2) The utility model provides a pair of portable scale can measure the distance between the standing point to the target point of isostructure through transversely placing or vertically placing the device, and the commonality can be better.

Drawings

Fig. 1 is a schematic view of a scale in an extended state of a rotating plate according to an embodiment of the present invention;

fig. 2 is a schematic view of a scale structure in a contracted state of the rotating plate according to an embodiment of the present invention;

fig. 3 is a schematic view of a scale structure of the rotary arm according to an embodiment of the present invention in an extended state;

fig. 4 is a schematic structural view of a scale in a contracted state of the rotating arm according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the scale in the extended state of the round bar according to the embodiment of the present invention.

In the figure: 1. a graduated scale; 101. secret scale; 2. a second cylindrical level bubble; 3. a first cylindrical level bubble; 4. a first rotating shaft; 5. a first rotating plate; 6. a second rotation shaft; 7. a second rotating plate; 8. a third rotation axis; 9. a third rotating plate; 10. observing the column; 11. observing a ring; 12. a fourth rotation axis; 13. a first rotating arm; 14. a fifth rotation axis; 15. a first telescopic arm; 16. a second telescopic arm; 17. a round bar base; 18. a sleeving connection ring; 19. a first round bar; 20. a second round bar; 21. a third round bar; 22. an elastic connecting rope; 23. magic tape.

Detailed Description

The technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Example 1

As shown in fig. 1, the embodiment provides a portable scale, which includes a scale 1 (a graduated scale in this embodiment), a dense scale 101 is disposed on one long side of the scale 1, and a central scale of the dense scale 101 is located in the middle of the long side of the scale 1; the last inlay of scale 1 is equipped with first cylinder air level 3 and second cylinder air level 2, the axis of first cylinder air level 3 is perpendicular with 1 long limit of scale, the axis of second cylinder air level 2 is parallel with 1 long limit of scale.

The middle of the long edge of the graduated scale 1, which is not provided with the dense scale 101, is hinged with a telescopic component through a first rotating shaft 4, and the axis of the first rotating shaft 4 is parallel to the surface of the graduated scale 1 and is vertical to the long edge of the graduated scale 1; the telescopic assembly in the embodiment comprises a first rotating plate 5, the first rotating plate 5 is hinged with the graduated scale 1 through a first rotating shaft 4, and the length of the first rotating plate 5 is equal to half of the length of the graduated scale 1; one end of the first rotating plate 5, which is far away from the first rotating shaft 4, is hinged with a second rotating plate 7 through a second rotating shaft 6, and the length of the second rotating plate 7 is equal to that of the graduated scale 1; one end of the second rotating plate 7, which is far away from the second rotating shaft 6, is hinged with a third rotating plate 9 through a third rotating shaft 8, and the length of the third rotating plate 9 is equal to half of the length of the scale 1; one end of the third rotating plate 9, which is far away from the third rotating shaft 8, is connected with an observation column 10, the axis of the observation column 10 is parallel to the surface of the graduated scale 1, and the axis of the observation column 10 is perpendicular to the long side of the graduated scale 1; the top of observing post 10 is connected with observes circle 11, it is formed with circular observation hole to observe 11 middlings of circle, the axis in circular observation hole flushes with scale 1 long limit that is provided with close position scale 101, and the aperture in observation hole is less to utilize the aperture principle to make the target of observing more clear when reducing observation error.

According to the technical scheme provided by the embodiment, when the scale is carried, the telescopic assembly is contracted, the size of the scale is reduced, and the scale is convenient to carry; when the scale is used, the telescopic component is extended, when the telescopic component is extended, the telescopic component is perpendicular to the graduated scale 1, the axis of the observation column 10 is parallel to the surface of the graduated scale 1, and the connecting line of the center of the observation hole in the observation ring 11 and the central scale of the graduated scale 1 is perpendicular to the surface of the graduated scale 1; the position of adjustment scale 1, make the long limit or the minor face of scale 1 parallel with the water flat line through observing first cylinder air level 3 or second cylinder air level 2, the user sees through observing circle 11 through eyes and observes, make the central scale of scale 1 and the coincidence of one side of target object, and observe the scale registration with the coincidence of target object opposite side, the number of scales of this scale registration to central scale is the secret number that obtains of observing promptly, adopt the secret formula to calculate the distance of observing between the point location to the point location of target object based on the size of secret number and target object.

Specifically, as shown in fig. 2, when the scale is carried, the first rotating plate 5 rotates around the first rotating shaft 4, so that the first rotating plate 5 is parallel to the scale 1, and one side of the first rotating plate 5 close to the scale 1 is attached to the side edge of the scale 1; the second rotary plate 7 rotates about the second rotation axis 6 such that the second rotation axis 6 is parallel to the scale 1; the third rotating plate 9 rotates around the third rotating shaft 8, so that the third rotating plate 9 is parallel to the graduated scale 1, and the observation column 10 connected with the third rotating plate 9 is attached to the graduated scale 1, at the moment, the first rotating plate 5 and the third rotating plate 9 are on the same plane and are both attached to the second rotating plate 7, so that the size of the compact scale in a storage state is reduced, and the carrying is convenient; when the scale is used, the third rotating plate 9, the second rotating plate 7 and the first rotating plate 5 are sequentially rotated to make the three rotating plates collinear and perpendicular to the scale 1, and after the position of the scale 1 is adjusted, the measurement can be started.

Example 2

As shown in fig. 3, this embodiment provides a portable scale, different from the first embodiment, in this embodiment, a sub scale is connected to a long side of the scale 1 far from the scale 101, the length of the sub scale is equal to the length of the scale 1, a fourth rotation shaft 12 adapted to the width of the sub scale is hinged to the sub scale, the surface of the sub scale is parallel to the surface of the scale 1, and the fourth rotation shaft 12 is disposed in the middle of the sub scale. The telescopic assembly in the embodiment comprises two first rotating arms 13 which are parallel to each other, the two first rotating arms 13 are hinged with the scale 1 through a fourth rotating shaft 12, and the two first rotating arms 13 are respectively connected to the top and the bottom of the side surface of the fourth rotating shaft 12; the axis of the fourth rotating shaft 12 is parallel to the surface of the graduated scale 1 and is perpendicular to the long side of the graduated scale 1; one ends of the two first rotating arms 13 far away from the fourth rotating shaft 12 are connected through a fifth rotating shaft 14, the fifth rotating shaft 14 is connected with a first telescopic arm 15, one end of the first telescopic arm 15 far away from the fifth rotating shaft is sleeved with a second telescopic arm 16, the length of the second telescopic arm 16 is equal to that of the graduated scale 1, and the length of the first rotating arm 13 and the length of the first telescopic arm 15 are equal to half of that of the graduated scale 1; the end of the second telescopic arm 16 remote from the first telescopic arm 15 is connected to the observation column 10.

According to the scale provided by the embodiment, when the scale is used, the first telescopic arm 15 is rotated around the fifth rotating shaft 14 to enable the first telescopic arm 15 and the two first rotating arms 13 to be parallel, then the two first rotating arms 13 are rotated around the fourth rotating shaft 12 to enable the two first rotating arms 13 to be perpendicular to the surface of the scale 1, finally the second telescopic arm 16 is pulled out from the first telescopic arm 15 to the most tail end of the first telescopic arm 15, at this time, the observation column 10 is parallel to the surface of the scale 1, and after the position of the scale 1 is adjusted (the long side or the short side of the scale 1 is parallel to the horizontal line, and the surface of the scale 1 is perpendicular to the horizontal plane), the measurement can be started; as shown in fig. 4, after the use, the end of the second telescopic arm 16 close to the first telescopic arm 15 is pushed back to the inside of the first telescopic arm 15, and then the fourth rotating shaft 12 is adjusted, so that the two first rotating arms 13 are parallel to the scale 1, at this time, the two first rotating arms 13 can be attached to the auxiliary scale, the fifth rotating shaft 14 is continuously adjusted, so that the first telescopic arm 15 is parallel to the scale 1, and at this time, the observation column 10 is attached to the side surface of the scale 1.

Example 3

As shown in fig. 5, the present embodiment provides a portable scale, which is different from embodiment 1 in that a round bar base 17 perpendicular to the surface of the scale 1 is disposed in the middle of a long side of the scale 1 where no scale 101 is disposed, the telescopic assembly includes a first round bar 19 detachably sleeved on the round bar base 17, and the length of the first round bar 19 is equal to half of the length of the scale 1; one end of the first round rod 19, which is far away from the round rod base 17, is sleeved with a second round rod 20 through a sleeving ring 18, and the length of the second round rod 20 is equal to that of the graduated scale 1; one end of the second round rod 20, which is far away from the first round rod 19, is sleeved with a third round rod 21 through a sleeving ring 18, and the length of the third round rod 21 is equal to half of the length of the scale 1; one end of the third round bar 21, which is far away from the second round bar 20, is connected with the observation post 10; the telescopic assembly further comprises an elastic connecting rope 22, one end of the elastic connecting rope 22 is connected with the round rod base 17, and the other end of the elastic connecting rope passes through the interior of the first round rod 19, the interior of the second round rod 20 and the interior of the third round rod 21 in sequence and then is fixedly connected into the third round rod 21.

According to the portable scale provided by the embodiment, when the scale is carried, the first round rod 19, the second round rod 20 and the third round rod 21 are detached, and the three round rods are attached together, so that the size of the scale is reduced; when the scale is used, one end of the first round rod 19 close to the scale 1 is inserted on the round rod base 17, the second round rod 20 is sleeved on one end of the first round rod 19 far away from the scale 1, and the third round rod 21 is sleeved on one end of the second round rod 20 far away from the first round rod 19, wherein the first round rod 19, the second round rod 20 and the third round rod 21 are arranged between one another and are perpendicular to the surface of the scale 1; at this time, the observation column 10 connected to the third round bar 21 is parallel to the surface of the scale 1, and the measurement can be started by adjusting the position of the scale 1.

As a preferred embodiment, a magic tape 23 is arranged on the scale 1, and when the telescopic assembly is in a contracted state, the magic tape 23 is used for fixing the telescopic assembly.

When carrying the scale of keeping closely, with first round bar 19, second round bar 20 and third round bar 21 by the fixed laminating of magic subsides 23 on scale 1 surface, play the effect of fixed above-mentioned three round bar, avoid producing the motion between scale 1 and the three round bar when accomodating and taking the scale of keeping closely and interfere.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not depart from the essence of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A portable scale is characterized by comprising a graduated scale, wherein scale marks are arranged on one long edge of the graduated scale, and a telescopic assembly is connected in the middle of the long edge of the graduated scale, which is not provided with scale marks; an observation column is connected to one end, far away from the graduated scale, of the telescopic assembly, an observation ring is connected to one end, far away from the telescopic assembly, of the observation column, an observation hole is formed in the middle of the observation ring, and the axis of the observation hole is perpendicular to the surface of the graduated scale when the telescopic assembly is in a stretching state; be provided with first cylinder air level and second cylinder air level on the scale, the axis of first cylinder air level is perpendicular with the long limit of scale, the axis of second cylinder air level is parallel with the long limit of scale.

2. The portable scale according to claim 1, wherein the telescopic assembly is hinged with the scale through a first rotating shaft, and the axis of the first rotating shaft is parallel to the surface of the scale; the telescopic assembly comprises a first rotating plate, one end, away from the first rotating shaft, of the first rotating plate is hinged to a second rotating plate through a second rotating shaft, one end, away from the second rotating shaft, of the second rotating plate is hinged to a third rotating plate through a third rotating shaft, and one end, away from the third rotating shaft, of the third rotating plate is connected with the observation column.

3. The portable scale according to claim 1, wherein the telescopic assembly is hinged with the scale through a fourth rotating shaft, and the axis of the fourth rotating shaft is parallel to the surface of the scale; the telescopic assembly comprises two first rotating arms which are respectively connected to the bottom of the side face and the top of the side edge of the fourth rotating shaft; two the one end that the fourth rotation axis was kept away from to first swinging boom is connected through the fifth rotation axis, and the fifth rotation axis is connected with first flexible arm, the flexible arm of second has been cup jointed to the one end that the fifth rotation axis was kept away from to first flexible arm, the flexible arm of second is kept away from the one end of first flexible arm and is connected with the observation post.

4. The portable scale according to claim 3, wherein the long side of the graduated scale far away from the scale is connected with an auxiliary scale, the length of the auxiliary scale is equal to that of the graduated scale, the width of the auxiliary scale is matched with that of the fourth rotating shaft, and the surface of the auxiliary scale is parallel to that of the graduated scale; the fourth rotation axis is provided in the middle of the sub scale.

5. The portable scale according to claim 1, wherein a round bar base perpendicular to the surface of the scale is arranged in the middle of the long side of the scale on which no scale is arranged, the telescopic assembly comprises a first round bar detachably sleeved on the round bar base, a second round bar is sleeved at one end of the first round bar far away from the round bar base, a third round bar is sleeved at one end of the second round bar far away from the first round bar, and one end of the third round bar far away from the second round bar is connected with the observation column; the telescopic assembly further comprises an elastic connecting rope, one end of the elastic connecting rope is connected with the round rod base, and the other end of the elastic connecting rope sequentially penetrates through the interior of the first round rod, the interior of the second round rod and the interior of the third round rod and then is fixedly connected into the third round rod.

6. The portable scale according to claim 5, wherein the graduated scale is provided with a magic tape, and when the telescopic assembly is in a contracted state, the magic tape is used for fixing the telescopic assembly.