Length measuring tool for cable laying

Abstract

The invention relates to the technical field of length measuring tools, in particular to a length measuring tool for cable laying, and the tool comprises a measuring part which comprises a guide part arranged in the X direction and a measuring wheel located at one end of the guide part; a folding supporting structure is arranged between the measuring wheel and the guide piece, and the folding supporting structure slides in the axial direction of the guide piece to achieve folding / unfolding of the measuring wheel; a central shaft of the fixing disc is rotationally connected with a central shaft of the folding supporting structure; the handrail is fixed to the other side of the fixed disc and used for promoting the measuring part to roll through manual pushing, and length measurement is completed; a foldable structure is adopted, the size of the measuring part is greatly reduced, carrying is convenient, deformation is avoided, and the problem that assembly is affected due to the fact that the length of a cable is not enough due to poor measuring precision is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of length measuring tools, in particular to a length measuring tool for cable laying. Background Art

[0002] During photovoltaic construction, laying cables from the inverter to the grid cabinet is inevitable, which involves estimating the cable length. If the length is estimated too short, the entire cable will need to be connected to an intermediate joint. If it is estimated too long, too much cable will be wasted.

[0003] The traditional approach is to use manual step measurement or a measuring wheel. Manual step measurement involves first measuring the size of one's own step, and then walking from the inverter to the grid-connected cabinet. This approach is time-consuming and labor-intensive, and due to manual estimation, errors are inevitable.

[0004] The measuring wheel has high precision and can solve the error problem, but the existing measuring wheel disc is large and has many inconveniences:

[0005] First, it is too large to be carried and takes up too much space.

[0006] Secondly, during storage or carrying, the wheel may be easily deformed due to collision or extrusion, and the measurement accuracy of the deformed wheel will be greatly reduced. Summary of the Invention

[0007] In view of the above-mentioned problems existing in the existing length measuring tools for cable laying, the present invention is proposed.

[0008] The above technical problem is solved by the following technical solution: The present invention proposes a length measuring tool for cable laying, comprising:

[0009] The measuring part includes a guide member arranged along the X direction and a measuring wheel located at one end of the guide member;

[0010] A folding support structure is provided between the measuring wheel and the guide member, and the folding support structure slides along the axial direction of the guide member to realize the folding / unfolding of the measuring wheel;

[0011] a fixed plate, the central axis of which is rotatably connected to the central axis of the folding support structure;

[0012] The handrail is fixed on the other side of the fixed plate and is used to cause the measuring part to roll by manpower to complete the length measurement.

[0013] In a preferred embodiment of the length measuring tool for cable laying of the present invention, the measuring wheel has a folding function, and comprises a plurality of arcuate bars, and the plurality of arcuate bars are rotatably connected to each other.

[0014] In a preferred embodiment of the length measuring tool for cable laying of the present invention: the folding support structure includes a fixed end and a sliding end;

[0015] A linkage assembly is provided between the fixed end, the sliding end and the measuring wheel.

[0016] In a preferred embodiment of the length measuring tool for cable laying of the present invention: the sliding end slides along the axial direction of the guide member, away from or close to the fixed end;

[0017] When moving away, the linkage assembly connects one end of the fixed end as a fulcrum and performs a circular motion, converting the Y direction into the X direction, that is, the linkage assembly is parallel to the guide member, driving the plurality of arc strips to fold;

[0018] When approaching, the linkage assembly is converted from the X direction to the Y direction, driving the plurality of arc strips to expand to form a complete circle.

[0019] In a preferred embodiment of the length measuring tool for cable laying of the present invention, a limiting member is provided between the sliding end and the guide member, and the limiting member is used to ensure the stability of the linkage assembly when it is unfolded.

[0020] In a preferred embodiment of the length measuring tool for cable laying of the present invention: the handrail includes an end rod and a telescopic rod.

[0021] In a preferred embodiment of the length measuring tool for cable laying of the present invention: an adjustment component is provided between the end rod and the telescopic rod;

[0022] The adjustment assembly includes a rotating part and a fixed part;

[0023] The rotating member is used to enable the telescopic rod to have the ability to transform from the Y axis to the X axis;

[0024] The fixing piece is used to limit the movement of the telescopic rod and ensure that it is coaxial with the end rod.

[0025] In a preferred embodiment of the length measuring tool for cable laying of the present invention, the length of the end rod is greater than the radius of the fixed disk, so as to prevent interference when the telescopic rod turns.

[0026] In a preferred embodiment of the length measuring tool for cable laying of the present invention: a binding strap is provided on the telescopic rod;

[0027] When the telescopic rod is parallel to the guide member, it is used to bundle the folded linkage assembly.

[0028] In a preferred embodiment of the length measuring tool for cable laying of the present invention, it further comprises an auxiliary support member, wherein the auxiliary support member is installed on the outer side of the fixing plate.

[0029] The beneficial effects of the present invention are as follows: the present invention adopts a foldable structure, which greatly reduces the volume of the measuring part, is convenient to carry, and will not deform, thereby avoiding the problem of insufficient cable length due to poor measurement accuracy, which affects assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0031] Figure 1 Shows a three-dimensional structural diagram of a length measuring tool for cable laying;

[0032] Figure 2 Shown is a left perspective structural diagram of a length measuring tool for cable laying;

[0033] Figure 3 The figure shows the structure of the measuring part of the length measuring tool used for cable laying;

[0034] Figure 4 Shown Figure 3 A magnified structural diagram at center A;

[0035] Figure 5 Shown Figure 3 Axial cross-sectional structural diagram at point B in the middle;

[0036] Figure 6 A structural diagram of a handrail in a length measuring tool for cable laying is shown;

[0037] Figure 7 Shown Figure 6 Enlarged structural diagram at point A in the middle. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0039] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0040] Reference Figure 1-5This embodiment provides a length measuring tool for cable laying, comprising:

[0041] The measuring part 1 includes a guide member 11 arranged along the X direction and a measuring wheel 12 located at one end of the guide member 11;

[0042] A folding support structure 13 is provided between the measuring wheel 12 and the guide member 11. The folding support structure 13 slides along the axial direction of the guide member 11 to realize the folding / unfolding of the measuring wheel 12.

[0043] The fixed disk 2 has a central axis that is rotatably connected to the central axis of the folding support structure 13, and a counter is installed on the other side of the fixed disk 2. The counter uses a rotary encoder to calculate the length by measuring the rotation angle or pulse number of the wheel 12;

[0044] The armrest 3 is fixed to the other side of the fixed plate 2 and is used to cause the measuring part 1 to roll by human power to complete the length measurement.

[0045] The folding / unfolding design makes the overall volume smaller, which is convenient for storage and carrying. At the same time, the reduced volume can avoid deformation caused by collision or extrusion, which affects the measurement accuracy.

[0046] It also includes an auxiliary support member 4, which is installed on the outside of the fixed plate 2. The auxiliary support member 4 can be a roller or a support block to provide support.

[0047] The measuring wheel 12 has a folding function and includes a plurality of arcuate bars, which are rotatably connected to each other.

[0048] The folding support structure 13 includes a fixed end 131 and a sliding end 132;

[0049] A linkage assembly 133 is provided between the fixed end 131 , the sliding end 132 and the measuring wheel 12 .

[0050] The sliding end 132 slides along the axial direction of the guide member 11 , moving away from or approaching the fixed end 131 ;

[0051] When moving away, the linkage component 133 connects one end of the fixed end 131 as a fulcrum and makes a circular motion, converting the Y direction into the X direction, that is, the linkage component 133 is parallel to the guide member 11, driving the plurality of arc strips to fold;

[0052] When approaching, the linkage assembly 133 is converted from the X direction to the Y direction, driving the plurality of arc-shaped strips to expand to form a complete circle.

[0053] Specifically, the linkage assembly 133 includes a plurality of first folding rods 1331 and a plurality of second folding rods 1332. One end of the second folding rod 1332 is rotatably connected to the arcuate bar, and the other end is fixed with a first connecting block 1333. The middle section of the first connecting block 1333 is rotatably connected to the first folding rod 1331. The other end of the first folding rod 1331 is rotatably connected to the outer ring of the fixed end 131. A through slot is formed in the middle section of the first folding rod 1331, and a first linkage rod 1334 is rotatably connected in the through slot. The other end of the first linkage rod 1334 is rotatably connected to the outer side of the sliding end 132, and a second linkage rod 1335 is rotatably connected between the first linkage rod 1334 and the end of the first connecting block 1333.

[0054] When measurement is required, the sliding end 132 is manually pushed, and the sliding end 132 slides along the axial direction of the guide member 11 and approaches the fixed end 131. During the movement, the first linkage rod 1334 opens outward and pushes the first folding rod 1331, causing the first folding rod 1331 to rotate with the connection with the fixed end 131 as a fulcrum until the first folding rod 1331 rotates from the X-axis to the Y-axis. At the same time, the second linkage rod 1335 drives the second folding rod 1332 to unfold and become coaxial with the first folding rod 1331, that is, drives the multiple arc bars to unfold to form a complete circle.

[0055] When folding, the sliding end 132 is manually pulled to slide along the axial direction of the guide member 11 and away from the fixed end 131. During the movement, the first linkage rod 1334 drives the first folding rod 1331 to rotate from the Y axis to the X axis, parallel to the guide member 11. At the same time, the second linkage rod 1335 drives the second folding rod 1332 to fold in the opposite direction, thereby realizing the rotation between the plurality of arc bars, and completing the folding. At this time, the volume is small, which is convenient for carrying and storage.

[0056] A limiting member 134 is provided between the sliding end 132 and the guide member 11 , and the limiting member 134 is used to ensure the stability of the linkage assembly 133 when it is deployed.

[0057] Specifically, the limiting member 134 includes an inner groove 1341 opened inside the guide member 11, a vertical rod 1342 is vertically arranged in the inner groove 1341, a protrusion 1343 is movably provided on the top of the vertical rod 1342, and a spring 1344 is sleeved on the outside of the vertical rod 1342 to provide elastic support to the protrusion 1343, and a through groove is opened on the guide member 11 and the sliding end 132, and the through groove is connected to the inner groove 1341. When unfolded, the through groove of the sliding end 132 coincides with the guide member 11, and the protrusion 1343 bounces up and passes through the through hole under the elastic support of the spring 1344, which can be used to fix the sliding end 132 and avoid the problem of loosening and automatic folding.

[0058] Instructions for use: Carry the device to the measurement area, use the linkage assembly 133 to drive the measuring wheel 12 to expand into a circle, grab the handrail 3 with your hand, and push the measuring wheel 12. The rotary encoder calculates the length based on the rotation angle or pulse number of the measuring wheel 12, which has the advantage of high accuracy.

[0059] After the measurement is completed, the linkage component 133 drives the measuring wheel 12 to complete folding. After folding, the volume becomes smaller, which makes it easy to carry and store. At the same time, the measuring wheel 12 will not be deformed due to impact or squeezing, which greatly ensures the measurement accuracy and avoids the increase in workload due to measurement errors.

[0060] As an optional embodiment:

[0061] Reference Figure 6-7 In one embodiment provided in the present application, the armrest 3 includes an end rod 31 and a telescopic rod 32 .

[0062] An adjustment assembly 33 is provided between the end rod 31 and the telescopic rod 32;

[0063] The adjustment assembly 33 includes a rotating member 331 and a fixing member 332;

[0064] The rotating member 331 is used to enable the telescopic rod 32 to be able to rotate from the Y axis to the X axis;

[0065] Specifically, the rotating member 331 includes a connecting rod 3311 fixed to one end of the end rod 31, and a slot 3312 opened at one end of the telescopic rod 32. The connecting rod 3311 is rotatably connected to the slot 3312, thereby enabling the telescopic rod 32 to be able to rotate from the Y axis to the X axis.

[0066] The fixing member 332 is used to limit the movement of the telescopic rod 32 to ensure that it is coaxial with the end rod 31;

[0067] Specifically, the fixing member 332 includes a threaded sleeve 3321 that is sleeved and fixed to the end of the end rod 31, and a sleeve 3322 that moves along the axial direction of the telescopic rod. The inner side of the sleeve 3322 is provided with an internal thread 3323. When the telescopic rod 32 and the end rod 31 are coaxial, the internal thread 3323 is aligned with the threaded sleeve 3321. After alignment, the sleeve 3322 is rotated, and the internal thread 3323 is threadedly twisted with the threaded sleeve 3321 to complete the fixation.

[0068] The length of the end rod 31 is greater than the radius of the fixed plate 2, so as to prevent interference when the telescopic rod 32 turns.

[0069] Instructions for use: When in use, rotate the telescopic rod 32 until it is coaxial with the end rod 31, align the internal thread 3323 with the threaded sleeve 3321, and then rotate the sleeve 3322. The internal thread 3323 and the threaded sleeve 3321 are twisted together to complete the fixation.

[0070] When folding, loosen the threaded sleeve 3321 so that the telescopic rod 32 can be transformed from the Y axis to the X axis, parallel to the guide member 11, and then shortened through the telescopic mechanism of the telescopic rod 32. At this time, the overall volume will become smaller, making it easier to carry and store.

[0071] As an optional embodiment:

[0072] Reference Figure 6 In one embodiment provided in the present application, the guide member 11 is a two-section rod, the first section is fixed to the central axis of the fixed end 31, the second section is rotatably connected to the first section by a thread, and the length of the first section is shorter than the length of the second section;

[0073] When collecting, the second section is mounted on the first section, so that the guide member 11 is lengthened as a whole, so as to provide a guiding function when the sliding end 132 slides;

[0074] When in use, the second section can be removed to reduce the horizontal length and avoid interference due to a small site.

[0075] The telescopic rod 32 is provided with a strap 34 for binding the folded linkage assembly 133 when the telescopic rod 32 is parallel to the guide member 11;

[0076] Specifically, a rough surface is provided on one side of the strap 34, and a hook surface is provided on the other end of the strap 34. The strap 34 is tied to the outside of the linkage component 133, and the bundling is completed by adhesion between the hook surface and the rough surface. This technology ensures that the measuring tool will not become loose after being collected, thereby improving the safety of carrying and avoiding injuries caused by looseness during carrying.

[0077] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A length measuring tool for cable laying, characterized by: include, A measuring part (1) includes a guide member (11) arranged along the X direction and a measuring wheel (12) located at one end of the guide member (11); A folding support structure (13) is provided between the measuring wheel (12) and the guide member (11), and the folding support structure (13) slides along the axial direction of the guide member (11) to achieve folding / unfolding of the measuring wheel (12); A fixed plate (2), the central axis of which is rotatably connected to the central axis of the folding support structure (13); The handrail (3) is fixed to the other side of the fixed plate (2) and is used to cause the measuring part (1) to roll by human force to complete the length measurement.

2. The length measuring tool for cable laying according to claim 1, characterized in that: The measuring wheel (12) has a folding function and comprises a plurality of arcuate bars, wherein the plurality of arcuate bars are connected in a rotational manner.

3. The length measuring tool for cable laying according to claim 2, characterized in that: The folding support structure (13) includes a fixed end (131) and a sliding end (132); A linkage assembly (133) is provided between the fixed end (131), the sliding end (132) and the measuring wheel (12).

4. The length measuring tool for cable laying according to claim 3, characterized in that: The sliding end (132) slides along the axial direction of the guide member (11) and moves away from or closer to the fixed end (131); When moving away, the linkage component (133) is connected to one end of the fixed end (131) as a fulcrum and performs a circular motion, converting the Y direction into the X direction, that is, the linkage component (133) is parallel to the guide member (11), driving the plurality of arc strips to fold; When approaching, the linkage assembly (133) is converted from the X direction to the Y direction, driving the plurality of arc strips to expand to form a complete circle.

5. The length measuring tool for cable laying according to claim 4, characterized in that: A limiting member (134) is provided between the sliding end (132) and the guide member (11), and the limiting member (134) is used to ensure the stability of the linkage assembly (133) when it is deployed.

6. The length measuring tool for cable laying according to claim 5, characterized in that: The handrail (3) comprises an end rod (31) and a telescopic rod (32).

7. The length measuring tool for cable laying according to claim 6, characterized in that: An adjustment assembly (33) is provided between the end rod (31) and the telescopic rod (32); The adjustment assembly (33) includes a rotating member (331) and a fixing member (332); The rotating member (331) is used to enable the telescopic rod (32) to have the ability to transform from the Y axis to the X axis; The fixing member (332) is used to limit the movement of the telescopic rod (32) to ensure that it is coaxial with the end rod (31).

8. The length measuring tool for cable laying according to claim 7, characterized in that: The length of the end rod (31) is greater than the radius of the fixed plate (2) and is used to prevent interference when the telescopic rod (32) turns.

9. The length measuring tool for cable laying according to claim 8, characterized in that: The telescopic rod (32) is provided with a strap (34); When the telescopic rod (32) is parallel to the guide member (11), it is used to bundle the folded linkage assembly (133).

10. The length measuring tool for cable laying according to claim 1, characterized in that: It also includes an auxiliary support member (4), which is installed on the outside of the fixed plate (2).

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