A short-section extendable measuring instrument

Abstract

This utility model discloses a short-section extendable measuring instrument, relating to the field of measuring instrument technology. The utility model includes a measuring section for measuring the length, width, and height of an object, and an extension section. Specifically, by setting a locking component, the short section ruler extends inside the main ruler. When the short section ruler is fully extended, rotating it clockwise drives a rotating rod to rotate a drive wheel. During the rotation of the drive wheel, its inclined surface causes three eccentric wheels to contact the inner wall of the main ruler. At this time, the three eccentric wheels limit and fix the short section ruler through friction. By allowing the short section ruler to extend, the need for splicing multiple measuring instruments is reduced, greatly improving measurement efficiency and accuracy, and significantly reducing the workload of workers. Furthermore, since the short section ruler can be stored inside the main ruler after use, the portability of the device is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of measuring instrument technology, and in particular relates to a measuring instrument with an extendable short section. Background Technology

[0002] Traditional measuring instruments often have limitations in their measurement range. When it is necessary to measure large objects or long distances, existing measuring instruments may not meet the requirements, or multiple measuring instruments may need to be used together, which is not only cumbersome to operate, but may also introduce errors at the splicing points, affecting the measurement accuracy. In addition, in some special measurement environments, such as narrow spaces or irregularly shaped objects, traditional measuring instruments are also difficult to adapt flexibly, causing inconvenience to the measurement work. At the same time, the structure of some measuring instruments is relatively complex, making them inconvenient to carry out on-site measurement work. Therefore, a short-section extendable measuring instrument is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a short-section extendable measuring instrument. By incorporating a locking component, specifically extending the short section ruler inside the main ruler, and then rotating it clockwise via a rotating rod to drive the drive wheel, the drive wheel's inclined plane causes three eccentric wheels to contact the inner wall of the main ruler. These eccentric wheels then use friction to limit and fix the short section ruler. This invention solves the problem of limitations in the measurement range of traditional measuring instruments. When measuring large objects or long distances, existing measuring instruments may not meet the requirements, or multiple instruments may need to be used in combination, which is not only cumbersome but also prone to errors at the joints, affecting measurement accuracy. Furthermore, in special measurement environments, such as narrow spaces or irregularly shaped objects, traditional measuring instruments are difficult to adapt flexibly, causing inconvenience. Additionally, some measuring instruments have complex structures, making them inconvenient to carry and store, hindering on-site measurement work.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a short-section extendable measuring instrument, comprising:

[0006] The measuring unit is used to measure the length, width, and height of an object;

[0007] An extension portion, installed inside the measuring unit, is used to extend the measuring range of the measuring unit; and

[0008] A reinforcement component is installed between the measuring part and the extension part, and plays an auxiliary role in the extension part;

[0009] The extension of the measuring section significantly improves the effectiveness of the equipment.

[0010] Furthermore, the measuring unit includes a main scale, inside which are arranged several short-section scales, and on the outer surface of both the short-section scales and the main scale are scales.

[0011] Among them, the short section rulers are set inside the main ruler, and the lengths of several short section rulers are the same, while the connection structures between several short section rulers are the same.

[0012] Furthermore, the extension includes a locking component mounted on the bottom of the short section ruler, the locking component being used to secure the short section ruler after it has been extended;

[0013] A limiting component is disposed at the bottom of the locking component, and the limiting component plays a role in limiting the movement of the locking component;

[0014] The limiting component and the locking component are connected by rotation.

[0015] Furthermore, the reinforcement component includes an anti-detachment component, which is installed between the main scale and the short section scale;

[0016] The number of anti-detachment components is several. In addition to the components between the main scale and the short section scale, anti-detachment components are also installed between several short section scales.

[0017] Furthermore, the locking assembly includes a drive wheel, a rotating rod is connected inside the drive wheel, the top of the rotating rod is welded to the bottom of the short section ruler, and an eccentric wheel is in contact with the inclined surface of the outer surface of the drive wheel;

[0018] The three eccentric wheels are all eccentrically set by pins, and the rotation of the drive wheel drives the three eccentric wheels to rotate eccentrically.

[0019] Furthermore, the limiting component includes a support plate, with sliders welded to the left and right sides of the outer surface of the support plate, and grooves opened on the left and right sides inside the main ruler.

[0020] Both sliders slide inside the groove, and the support disk is connected by a pin-shaft eccentric wheel. The rotating rod passes through the drive wheel and extends into the support disk. The inside of the support disk is rotatably connected to the outer surface of the rotating rod.

[0021] Furthermore, the anti-fall-off component includes a limiting bracket, which is S-shaped, with a support rod connected inside the limiting bracket, a fixing block installed at the bottom of the limiting bracket, a spring connected to the side of the fixing block away from the short section ruler, and several limiting holes opened at the top and bottom of the outer surface of the short section ruler.

[0022] The main ruler has a cavity inside, the limiting bracket is set inside the cavity, the support rod is connected to the cavity, the side of the spring away from the fixed block is connected to the inner wall of the cavity, and the top of the limiting bracket is inserted into the limiting hole.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model, by setting a locking component, specifically extends the short section ruler inside the main ruler. After the short section ruler is fully extended, rotating it clockwise drives the drive wheel to rotate via a rotating rod. During the rotation of the drive wheel, the inclined surface causes three eccentric wheels to contact the inner wall of the main ruler. At this time, the three eccentric wheels limit and fix the short section ruler through friction. By extending the short section ruler, the need for splicing multiple measuring instruments is reduced, greatly improving measurement efficiency and accuracy, and also significantly reducing the workload of the staff. In addition, since the short section ruler can be stored inside the main ruler after use, the portability of the equipment is greatly improved.

[0025] 2. This utility model incorporates an anti-drop component. Specifically, after the short section ruler is extended and fixed, the limiting bracket is released. Since the limiting bracket needs to be pressed during the extension of the short section ruler, the spring is stretched through the fixing block during the movement of the limiting bracket. Therefore, after the limiting bracket is released, the spring generates a certain rebound force and drives the limiting bracket to reset. At this time, the top of the limiting bracket will re-insert into the limiting hole. The limiting bracket then limits and fixes the short section ruler through the limiting hole, preventing the short section ruler from rotating counterclockwise. This improves the stability of the extended short section ruler and greatly enhances the practicality of the equipment.

[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of the main scale of this utility model;

[0030] Figure 3 This is a schematic diagram of the overall structure of the drive wheel of this utility model;

[0031] Figure 4 This is a schematic diagram of the overall structure of the limiting hole of this utility model;

[0032] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the diagram.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Measuring section; 11. Main scale; 12. Scale; 13. Short section scale; 2. Extension section; 21. Locking assembly; 211. Drive wheel; 212. Rotating rod; 213. Eccentric wheel; 22. Limiting assembly; 221. Support plate; 222. Slide groove; 223. Slider; 3. Reinforcing assembly; 31. Anti-falling assembly; 311. Limiting hole; 312. Limiting bracket; 313. Support rod; 314. Fixing block; 315. Spring; 316. Cavity. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figures 1-5 As shown, this utility model is a short-section extendable measuring instrument, comprising:

[0037] Measuring unit 1 is used to measure the length, width and height of an object;

[0038] Extension 2, installed inside the measuring unit 1, extends the measuring range of the measuring unit 1; and

[0039] Reinforcing component 3 is installed between measuring part 1 and extension part 2, and plays an auxiliary role in extension part 2;

[0040] The extension section 2 extends the measuring section 1, which greatly improves the effectiveness of the equipment.

[0041] The measuring unit 1 includes a main scale 11, inside which are several short-section scales 13, and on the outer surface of both the several short-section scales 13 and the main scale 11 are scales 12.

[0042] Among them, the short section ruler 13 is set inside the main ruler 11, and the length of several short section rulers 13 is the same, and the connection structure between several short section rulers 13 is the same.

[0043] The extension 2 includes a locking component 21, which is installed at the bottom of the short section ruler 13 and is used to fix the short section ruler 13 after it is extended.

[0044] Limiting component 22 is located at the bottom of locking component 21, and limiting component 22 plays a role in limiting the movement of locking component 21;

[0045] The limiting component 22 and the locking component 21 are connected by rotation.

[0046] The reinforcement component 3 includes an anti-detachment component 31, which is installed between the main scale 11 and the short section scale 13;

[0047] Among them, there are several sets of anti-detachment components 31. In addition to being set between the main scale 11 and the short section scale 13, anti-detachment components 31 are also set between several short section scales 13.

[0048] Locking assembly 21 includes a drive wheel 211, a rotating rod 212 is connected inside the drive wheel 211, the top of the rotating rod 212 is welded to the bottom of the short section ruler 13, and the outer surface of the drive wheel 211 is in contact with an eccentric wheel 213.

[0049] The three eccentric wheels 213 are eccentrically set via pins. The rotation of the drive wheel 211 drives the three eccentric wheels 213 to rotate eccentrically, extending the short section ruler 13 inside the main ruler 11. After the short section ruler 13 is fully extended, rotating it clockwise drives the drive wheel 211 to rotate via the rotating rod 212. During the rotation of the drive wheel 211, its inclined surface causes the three eccentric wheels 213 to contact the inner wall of the main ruler 11. At this time, the three eccentric wheels 213 limit and fix the short section ruler 13 through friction. By extending the short section ruler 13, the need for splicing multiple measuring instruments is reduced, greatly improving measurement efficiency and accuracy, and also significantly reducing the workload of the staff. In addition, since the short section ruler 13 can be stored inside the main ruler 11 after use, the portability of the equipment is greatly improved.

[0050] The limiting component 22 includes a support plate 221, with sliders 223 welded to the left and right sides of the outer surface of the support plate 221, and grooves 222 opened on the left and right sides inside the main ruler 11.

[0051] Both sliders 223 slide inside the groove 222, and the support disk 221 is connected by a pin eccentric wheel 213. The rotating rod 212 passes through the drive wheel 211 and extends into the support disk 221. The support disk 221 is rotatably connected to the outer surface of the rotating rod 212.

[0052] The anti-fall-off component 31 includes a limiting bracket 312, which is S-shaped. A support rod 313 is connected inside the limiting bracket 312. A fixing block 314 is installed at the bottom of the limiting bracket 312. A spring 315 is connected to the side of the fixing block 314 away from the short section ruler 13. Several limiting holes 311 are opened at the top and bottom of the outer surface of the short section ruler 13.

[0053] The main ruler 11 has a cavity 316 inside, and a limiting bracket 312 is set inside the cavity 316. A support rod 313 is connected to the cavity 316, and the side of the spring 315 away from the fixing block 314 is connected to the inner wall of the cavity 316. Simultaneously, the top of the limiting bracket 312 is inserted into the limiting hole 311. After the short section ruler 13 is extended and fixed, the limiting bracket 312 is released. Because the limiting bracket 312 needs to be pressed when extending the short section ruler 13, its movement... The spring 315 is stretched by the fixing block 314. Therefore, after the limiting bracket 312 is released, the spring 315 will generate a certain rebound force and drive the limiting bracket 312 to reset. At this time, the top of the limiting bracket 312 will be inserted into the limiting hole 311 again. The limiting bracket 312 limits and fixes the short section ruler 13 through the limiting hole 311, preventing the short section ruler 13 from rotating counterclockwise, thereby improving the stability of the short section ruler 13 after extension and greatly improving the practicality of the equipment.

[0054] A specific application of this embodiment is as follows: When it is necessary to extend the length of the device, pressing the limiting bracket 312 causes it to move via the support rod 313. The top of the limiting bracket 312 then disengages from the limiting hole 311, allowing the short section ruler 13 to extend within the main ruler 11. Simultaneously, the movement of the short section ruler 13 drives the support plate 221 to move. The movement of the support plate 221 causes the two sliders 223 to slide within the groove 222. The groove 222, through the sliders 223, provides a certain degree of limitation on the movement trajectory of the support plate 221. After the short section ruler 13 is fully extended, rotating it clockwise causes the rotating rod 212 to move. The rotating rod 212 rotates within the support plate 221. When the rotating rod 212 rotates, it drives the driving wheel 211 to rotate. During the rotation of the driving wheel 211, it drives the three eccentric wheels 213 to rotate through the action of its inclined surface. Since the three eccentric wheels 213 are all eccentric wheels, when the three eccentric wheels 213 rotate, they will move away from the driving wheel 211. At this time, the outer surface of the three eccentric wheels 213 will contact the inner wall of the main scale 11. At this time, the three eccentric wheels 213 limit and fix the short section scale 13 through the action of friction. This completes the extension of the short section scale 13. By extending the short section scale 13, the need to use multiple measuring instruments splicing is reduced, which greatly improves the measurement efficiency and accuracy. At the same time, it also greatly reduces the workload of the staff. Since the short section scale 13 can be stored inside the main scale 11 after use, the portability of the equipment is greatly improved.

[0055] After the short section ruler 13 is extended and fixed, the limiting bracket 312 is released. Since the limiting bracket 312 needs to be pressed when extending the short section ruler 13, the movement of the limiting bracket 312 will drive the fixing block 314 to move together. During the movement of the fixing block 314, the spring 315 will be stretched. The spring 315 will store force due to the limiting effect of the inner wall of the cavity 316. Therefore, after the limiting bracket 312 is released, the spring 315 will generate a certain rebound force and drive the fixing block 314 to reset. When the fixing block 314 resets, it will drive the limiting bracket 312 to move together. At this time, the top of the limiting bracket 312 will be inserted into the limiting hole 311 again. At this time, the limiting bracket 312 limits and fixes the short section ruler 13 through the limiting hole 311, preventing the short section ruler 13 from rotating counterclockwise, thereby improving the stability of the short section ruler 13 after extension and greatly improving the practicality of the equipment.

[0056] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A short section extendable metering instrument, characterized in that, include: The measuring unit (1) is used to measure the length, width and height of an object; An extension (2) is installed inside the measuring unit (1) and is used to extend the measuring range of the measuring unit (1); as well as The reinforcement component (3) is installed between the measuring part (1) and the extension part (2) and plays an auxiliary role in the extension part (2); The measuring part (1) is extended by the extension part (2), which greatly improves the performance of the equipment. The measuring unit (1) includes a main scale (11), and several short-section scales (13) are provided inside the main scale (11). The scales (12) are provided on the outer surfaces of the several short-section scales (13) and the main scale (11). Among them, the short section ruler (13) is set inside the main ruler (11), and the length of several short section rulers (13) is the same, and the connection structure between several short section rulers (13) is the same. The extension (2) includes a locking component (21) which is mounted on the bottom of the short section ruler (13) and is used to fix the short section ruler (13) after it has been extended. A limiting component (22) is provided at the bottom of the locking component (21), and the limiting component (22) plays a role in limiting the movement of the locking component (21); The limiting component (22) and the locking component (21) are connected by rotation; The reinforcement component (3) includes an anti-detachment component (31), which is installed between the main ruler (11) and the short section ruler (13); Among them, there are several sets of anti-drop components (31). In addition to the main scale (11) and the short section scale (13), anti-drop components (31) are also set between several short section scales (13). The locking assembly (21) includes a drive wheel (211), and a rotating rod (212) is connected inside the drive wheel (211). The top of the rotating rod (212) is welded to the bottom of the short ruler (13), and the inclined surface of the outer surface of the drive wheel (211) is in contact with an eccentric wheel (213). Among them, the three eccentric wheels (213) are all eccentrically set by pin shafts, and the three eccentric wheels (213) are driven to rotate eccentrically by the rotation of the drive wheel (211); The limiting component (22) includes a support plate (221), and sliders (223) are welded on the left and right sides of the outer surface of the support plate (221). Slide grooves (222) are opened on the left and right sides inside the main ruler (11). Both sliders (223) slide inside the groove (222), and the support disk (221) is connected by a pin eccentric wheel (213). The rotating rod (212) passes through the drive wheel (211) and extends into the support disk (221). The support disk (221) is rotatably connected to the outer surface of the rotating rod (212).

2. The short spool extendable meter of claim 1, wherein, The anti-fall-off component (31) includes a limiting bracket (312), which is S-shaped. A support rod (313) is connected inside the limiting bracket (312). A fixing block (314) is installed at the bottom of the limiting bracket (312). A spring (315) is connected to the side of the fixing block (314) away from the short ruler (13). Several limiting holes (311) are opened at the top and bottom of the outer surface of the short ruler (13). The main ruler (11) has a cavity (316) inside, the limiting bracket (312) is set inside the cavity (316), the support rod (313) is connected to the cavity (316), the side of the spring (315) away from the fixing block (314) is connected to the inner wall of the cavity (316), and the top of the limiting bracket (312) is inserted into the limiting hole (311).

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