A telescopic municipal construction measuring scale

Abstract

This utility model provides a telescopic measuring ruler for municipal construction, relating to the field of municipal engineering surveying technology. It includes: a stabilizing plate; a protective shell installed on the right side of the stabilizing plate; a primary measuring ruler installed inside the protective shell; and a positioning plate located above the protective shell, with a vertical sliding hole on one side of the positioning plate. A locking seat and a positioning rod cooperate to quickly lock the extended positions of the secondary and tertiary telescopic rulers, solving the problem of traditional bolt-locked secondary and tertiary telescopic rulers. After the locking seat engages with the locking blocks of the secondary and tertiary telescopic rulers, it can withstand greater axial tension without slipping. Compared to traditional bolt-locking methods, the adjustment speed is significantly improved, and the locking failure caused by bolt stripping is avoided.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering surveying technology, and in particular to a retractable municipal construction surveying ruler. Background Technology

[0002] In municipal engineering construction, measuring rulers are indispensable tools, including extendable leveling rods. The accuracy and convenience of measuring tools directly affect construction efficiency and quality. Currently used measuring rulers have the following significant shortcomings when dealing with complex construction scenarios:

[0003] Traditional measuring rulers often use a single fixed length or bolt-locked telescopic design. For example, two-stage telescopic rulers and three-stage telescopic rulers are positioned by tightening bolts. Each adjustment requires the use of a wrench. Not only is single-stage telescopic adjustment time-consuming and laborious, but the bolts are also prone to stripping due to frequent disassembly and assembly, leading to locking failure.

[0004] Existing measuring rulers lack effective protective structures, so when carrying and placing the measuring ruler, dust and mortar in the construction environment can easily adhere to the scale surface, resulting in unclear readings. When measuring vertically, traditional measuring rulers often rely on manual hand-holding to maintain balance or the use of a bracket to stabilize the measuring ruler, which reduces the portability of the measuring ruler. Utility Model Content

[0005] This utility model relates to a telescopic measuring ruler for municipal construction. The first-level measuring ruler, the second-level telescopic ruler, and the third-level telescopic ruler work together to form a telescopic measuring structure. The locking seat and the positioning rod work together to quickly lock the extension position of the second-level telescopic ruler and the third-level telescopic ruler, respectively. This solves the problem of traditional second-level telescopic rulers and third-level telescopic rulers being locked with bolts. Therefore, after the locking seat and the locking blocks of the second-level telescopic ruler and the third-level telescopic ruler are engaged, they can withstand a large axial tensile force without slipping. Compared with the traditional bolt locking method, the adjustment speed is greatly improved, and the locking failure problem caused by bolt stripping is avoided.

[0006] This utility model provides a retractable municipal construction measuring ruler, specifically including: a stabilizing plate, a protective shell installed on the right side of the stabilizing plate, a primary measuring ruler installed on the inner side of the protective shell, a positioning plate provided on the upper part of the protective shell, a vertical sliding hole opened on one side of the positioning plate, a locking rod inserted inside the sliding hole, a handle provided on the upper part of the protective shell, a level installed on one side of the handle, and a positioning rod installed on one side of the primary measuring ruler.

[0007] Furthermore, a sliding groove is formed on the inner side of the first-level measuring ruler, a second-level telescopic ruler is installed on the inner side of the sliding groove, a sliding groove is formed on the inner side of the second-level telescopic ruler, and a third-level telescopic ruler is installed on the inner side of the sliding groove. The first-level measuring ruler, the second-level telescopic ruler, and the third-level telescopic ruler cooperate with each other to form a measuring structure.

[0008] Furthermore, a positioning groove is formed in the middle of the stabilizing plate. The positioning groove has a rectangular structure. A magnetic block is installed on the inner side of the positioning groove. A docking block is provided on one side of the protective shell, and the docking block extends into the interior of the positioning groove.

[0009] Furthermore, a positioning groove is formed on one side of the protective shell, and a magnet is installed on the inner side of the positioning groove.

[0010] Furthermore, a buckle is provided on one side of the handle, and an annular groove is opened in the middle of the level, with the inner side of the buckle extending into the interior of the annular groove.

[0011] Furthermore, a retaining ring is provided at the bottom of the locking rod, and a support spring is installed between the retaining ring and the positioning plate.

[0012] Furthermore, a sliding hole corresponding to the locking rod is opened on one side of the protective housing, and the locking rod passes through the interior of the sliding hole. A locking groove corresponding to the locking rod is opened on one side of the first-level measuring scale, and the bottom of the locking rod extends into the interior of the locking groove.

[0013] Furthermore, a positioning plate is provided above one side of the first-level measuring ruler and the second-level telescopic ruler. The positioning plate has an L-shaped structure and a vertical sliding hole is opened on one side of the positioning plate. A vertical positioning rod is inserted into the sliding hole. The sliding hole cooperates with the positioning plate to position the sliding position of the positioning rod.

[0014] Furthermore, a locking seat is provided at the bottom of the positioning rod, a support spring is installed above the locking seat, and a lifting bracket is installed above the locking seat. The locking seat, positioning rod, and lifting bracket cooperate with each other to form a locking structure.

[0015] Furthermore, an annular groove is formed above the locking seat, and a slot is formed on the inner side of the lifting bracket, extending into the interior of the annular groove.

[0016] Furthermore, a set of evenly distributed locking blocks are provided above the secondary and tertiary telescopic rulers, and the locking blocks are rectangular rack structures. A slot corresponding to the locking block is opened at the bottom of the locking seat.

[0017] This utility model provides a retractable municipal construction measuring ruler, which has the following beneficial effects:

[0018] This utility model is equipped with a first-level measuring ruler, a second-level telescopic ruler, and a third-level telescopic ruler that work together to form a telescopic measuring structure. The telescopic length of the measuring structure can be adjusted to measure the construction location of municipal projects.

[0019] A transparent protective shell is installed to protect the measuring ruler. The transparent protective shell effectively isolates dust and impacts, protects the scale of the measuring ruler so that it is clear and readable, and extends the service life of the measuring ruler.

[0020] A stabilizing plate is installed to stabilize the vertical measurement structure. The stabilizing plate is installed on one side of the protective shell using a magnetic structure. The stabilizing plate can be quickly assembled and disassembled without tools, which can meet the needs of frequent site changes in municipal construction. After the stabilizing plate is in parallel contact with the ground, the measurement structure is perpendicular to the ground, and at this time the stabilizing plate stabilizes the measurement structure.

[0021] The multi-stage telescopic ruler body can be operated with one hand through a spring-driven locking structure. The telescopic adjustment and locking process is simple and greatly improves measurement efficiency.

[0022] Specifically, the locking seat and positioning rod work together to quickly lock the extension positions of the second-level and third-level telescopic rulers, solving the problem of traditional second-level and third-level telescopic rulers being locked with bolts. After the locking seat and the locking block of the second-level and third-level telescopic rulers are engaged, they can withstand a large axial tensile force without slipping. Compared with the traditional bolt locking method, the adjustment speed is greatly improved, and the locking failure caused by bolt stripping is avoided.

[0023] Specifically, the measuring ruler is compact when shrunk, making it easy to store and transport, and is especially suitable for working in confined spaces. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0025] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0026] In the attached diagram:

[0027] Figure 1 This diagram shows the axial side view of the measuring ruler of this invention when it is assembled and laid flat.

[0028] Figure 2 This utility model illustrates Figure 1 A schematic diagram of the axonal structure from an elevation viewpoint;

[0029] Figure 3 A schematic diagram of the axial side structure of the measuring ruler section structure of this utility model is shown;

[0030] Figure 4 A schematic diagram of the axial side structure of the measuring ruler of this utility model in the vertical state is shown;

[0031] Figure 5 A schematic diagram of the isometric structure of the measuring ruler split structure of this utility model is shown;

[0032] Figure 6 The diagram shows the locking structure and the axial side structure of the two-stage telescopic ruler of this utility model.

[0033] Figure 7 This utility model illustrates Figure 3 A magnified structural diagram at point A;

[0034] Figure 8 This utility model illustrates Figure 4 A magnified structural diagram at point B.

[0035] List of reference numerals

[0036] 1. Stabilizing plate; 101. Magnetic block;

[0037] 2. Protective housing; 201. Handle; 202. Magnet;

[0038] 3. Locking lever;

[0039] 4. Level;

[0040] 5. Measuring structure; 501. First-level measuring ruler; 502. Second-level telescopic ruler; 503. Third-level telescopic ruler;

[0041] 6. Locking structure; 601. Locking seat; 602. Positioning rod; 603. Lifting bracket. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] Example 1: Please refer to Figures 1 to 8 :

[0044] This utility model proposes a retractable municipal construction measuring ruler, including: a stabilizing plate 1, a protective shell 2 installed on the right side of the stabilizing plate 1, the protective shell 2 being made of transparent material, the specific material of the protective shell 2 being selected according to actual needs, the material of the protective shell 2 being plastic or glass, a positioning groove being opened in the middle of the stabilizing plate 1, the positioning groove being a rectangular structure, a magnetic block 101 being installed on the inner side of the positioning groove, the specific material of the magnetic block 101 being selected according to actual needs, and a connecting block being provided on one side of the protective shell 2, the connecting block extending into the interior of the positioning groove;

[0045] In this embodiment, a primary measuring ruler 501 is installed on the inner side of the protective housing 2. The transparent material of the protective housing 2 protects the primary measuring ruler 501 while also making it easy to see the scale. The transparent protective housing 2 can protect the primary measuring ruler 501 from dust and impact damage in the construction environment, and can also read the data directly through the visual scale, avoiding the cumbersome operation of opening the cover to read the data. A positioning plate is provided at the top of the protective housing 2. A vertical sliding hole is opened on one side of the positioning plate. A locking rod 3 is inserted inside the sliding hole. A retaining ring is provided at the bottom of the locking rod 3. A support spring is installed between the retaining ring and the positioning plate. The support spring presses the locking rod 3 downward. A handle 201 is provided at the top of the protective housing 2. A level 4 is installed on one side of the handle 201. A positioning rod 602 is installed on one side of the primary measuring ruler 501.

[0046] In this embodiment, a sliding groove is formed on the inner side of the primary measuring ruler 501. A secondary telescopic ruler 502 is installed on the inner side of the sliding groove. A tertiary telescopic ruler 503 is installed on the inner side of the secondary telescopic ruler 502. The primary measuring ruler 501, secondary telescopic ruler 502, and tertiary telescopic ruler 503 cooperate to form the measuring structure 5. The telescopic length of the measuring structure 5 is adjusted to measure the construction location of the municipal works. A positioning groove is formed on one side of the protective shell 2. A magnet 202 is installed on the inner side of the positioning groove. The positioning groove positions and hides the installation position of the magnet 202. When the stabilizing plate 1 and the protective shell 2 are assembled, the magnets 202 attract and position each other. At this time, the stabilizing plate 1 and the protective shell 2 can be stably assembled. In addition, the setting of the magnets 202 and the connecting block facilitates the separation of the stabilizing plate 1 and the protective shell 2, so that the stabilizing plate 1 can be adjusted according to the actual situation. Since disassembly and assembly are required, after the stabilizing plate 1 is in parallel contact with the ground, the measuring structure 5 is perpendicular to the ground. At this time, the stabilizing plate 1 stabilizes the measuring structure 5. A buckle is provided on one side of the handle 201. An annular groove is opened in the middle of the level 4. The inner side of the buckle extends into the interior of the annular groove. Therefore, the buckle stabilizes the installed level 4. The setting of the level 4 increases the level detection function of the measuring structure 5. A sliding hole corresponding to the locking rod 3 is opened on one side of the protective housing 2. The locking rod 3 passes through the interior of the sliding hole. A locking groove corresponding to the locking rod 3 is opened on one side of the first-level measuring ruler 501. The bottom of the locking rod 3 extends into the interior of the locking groove. The locking rod 3, together with the positioning plate and the spring, quickly locks the first-level measuring ruler 501 inside the protective housing 2. The first-level measuring ruler 501 can be unlocked by pulling the locking rod 3 upward with one hand, realizing the convenient operation of quick locking and unlocking of the first-level measuring ruler 501.

[0047] In this embodiment, a positioning plate is provided above one side of the first-level measuring ruler 501 and the second-level telescopic ruler 502. The positioning plate has an L-shaped structure, and a vertical sliding hole is opened on one side of the positioning plate. A vertical positioning rod 602 is inserted into the sliding hole. The sliding hole, in conjunction with the positioning plate, positions the sliding position of the positioning rod 602, allowing the positioning rod 602 to move stably up and down at the position of the sliding hole. A locking seat 601 is provided at the bottom of the positioning rod 602, and a support spring is installed above the locking seat 601. The support spring elastically presses the locking seat 601 and the positioning rod 602 downward. A lifting bracket 603 is installed above the locking seat 601. The locking seat 601, the positioning rod 602, and the lifting bracket 603 cooperate to form a locking structure 6. An annular groove is opened above the locking seat 601, and a slot is opened on the inner side of the lifting bracket 603, extending into the interior of the annular groove. The locking seat 601 and the lifting bracket 603 are stably engaged by the interlocking of the slot and the annular groove. When the operator lifts the lifting bracket 603, it drives the locking seat 601 to move synchronously. A set of evenly distributed locking blocks are provided above the secondary telescopic ruler 502 and the tertiary telescopic ruler 503. The locking blocks are rectangular rack structures. A slot corresponding to the locking block is opened at the bottom of the locking seat 601. The slot and the locking block engage. The locking seat 601 and the positioning rod 602 work together to quickly lock the extension position of the secondary telescopic ruler 502 and the tertiary telescopic ruler 503. This solves the problem of traditional secondary telescopic ruler 502 and tertiary telescopic ruler 503 being locked by bolts. Therefore, after the locking seat 601 engages with the locking blocks of the secondary telescopic ruler 502 and the tertiary telescopic ruler 503, it can withstand a large axial tensile force without slipping. Compared with the traditional bolt locking method, the adjustment speed is greatly improved, and the locking failure caused by bolt stripping is avoided.

[0048] Example 2, based on Example 1, such as Figures 1-6 As shown, the first-level measuring ruler 501, the second-level telescopic ruler 502, and the third-level telescopic ruler 503 are provided with scales on one side. The second-level telescopic ruler 502 and the third-level telescopic ruler 503 are stretched and adjusted with reference to the scales.

[0049] Example 3, based on Example 1, such as Figures 1-5 As shown, when the first-level measuring ruler 501, the second-level telescopic ruler 502, and the third-level telescopic ruler 503 need to be used horizontally, the stabilizing plate 1 is removed to prevent this. At this time, the first-level measuring ruler 501, the second-level telescopic ruler 502, and the third-level telescopic ruler 503 are in parallel contact with the measuring surface.

[0050] The working principle of this embodiment:

[0051] Align the docking block of the protective housing 2 with the positioning groove of the stabilizing plate 1, and the magnetic block 101 and the magnet 202 are attracted to each other to complete the assembly of the stabilizing plate 1 and the protective housing 2. Secure the level 4 to one side of the handle 201 with the buckle. Select a liquid structure with air bubbles for the level 4.

[0052] Pull the locking lever 3 with one hand until it disengages from the locking slot of the first-level measuring scale 501, thus unlocking the first-level measuring scale 501;

[0053] Simultaneously lift the lifting bracket 603 above the first-level measuring ruler 501 and the second-level telescopic ruler 502, so that the locking seat 601 disengages from the corresponding locking block, and unlocks the second-level telescopic ruler 502 and the third-level telescopic ruler 503.

[0054] Place the stabilizing plate 1 stably on the ground at the measurement point, and stretch the secondary telescopic ruler 502 and the tertiary telescopic ruler 503 according to the measurement requirements, and adjust the measurement length of the secondary telescopic ruler 502 and the tertiary telescopic ruler 503.

[0055] Pull out the first-level measuring ruler 501 at a constant speed with one hand to the required length, and observe the outer scale to measure the construction position. Similarly, pull out the second-level telescopic ruler 502 and the third-level telescopic ruler 503 step by step, and refer to the scale on the side of the ruler to the target value.

[0056] When the lifting bracket 603 is released, the locking seat 601 engages with the corresponding locking block under the action of the spring, automatically fixing the adjustment positions of the secondary telescopic ruler 502 and the tertiary telescopic ruler 503;

[0057] Release the locking lever 3, which, under the action of the spring, engages with the locking groove of the first-level measuring scale 501, thus completing the stable connection between the first-level measuring scale 501 and the protective housing 2.

[0058] Pull the protective shell 2 horizontally to overcome the attraction force between the magnetic block 101 and the magnet 202, and separate the stabilizing plate 1. At this time, use the first-level measuring ruler 501, the second-level telescopic ruler 502, and the third-level telescopic ruler 503 separately. Flip the measuring structure 5 as a whole so that the scale surface faces upward.

[0059] To measure levelness, calibrate using the level 4 on handle 201, ensuring the bubble is centered before reading the scale.

[0060] Read the sum of the scale readings at the overlapping points of the first-level measuring ruler 501, the second-level telescopic ruler 502, and the third-level telescopic ruler 503 to complete the measurement of the construction location;

[0061] Following the unlocking steps, pull the locking lever 3 and the lifting frame 603, and push the third-level telescopic ruler 503, the second-level telescopic ruler 502, and the first-level measuring ruler 501 back to their initial positions one by one, completing the storage of the third-level telescopic ruler 503, the second-level telescopic ruler 502, and the first-level measuring ruler 501.

[0062] Through the above steps, the measuring ruler can complete the conversion from storage to measurement within 30 seconds, which is a significant improvement in efficiency compared to the traditional bolt-locking measuring ruler.

Claims

1. A telescoping municipal construction measuring scale characterized by, include: The device includes a stabilizing plate (1), a primary measuring ruler (501), and a positioning rod (602). A protective housing (2) is installed on the right side of the stabilizing plate (1). A primary measuring ruler (501) is installed on the inner side of the protective housing (2). A positioning plate is provided on the upper part of the protective housing (2). A vertical sliding hole is opened on one side of the positioning plate. A locking rod (3) is inserted inside the sliding hole. A handle (201) is provided on the upper part of the protective housing (2). A level (4) is installed on one side of the handle (201). A positioning rod (602) is installed on one side of the primary measuring ruler (501).

2. A telescoping municipal construction measuring stick according to claim 1, wherein, A sliding groove is provided on the inner side of the first-level measuring ruler (501), a second-level telescopic ruler (502) is installed on the inner side of the sliding groove, a sliding groove is provided on the inner side of the second-level telescopic ruler (502), and a third-level telescopic ruler (503) is installed on the inner side of the sliding groove. The first-level measuring ruler (501), the second-level telescopic ruler (502), and the third-level telescopic ruler (503) cooperate with each other to form a measuring structure (5).

3. A telescoping municipal construction measuring stick according to claim 1, wherein, A positioning groove is provided in the middle of the stabilizing plate (1), and a magnetic block (101) is installed on the inner side of the positioning groove. A docking block is provided on one side of the protective shell (2), and the docking block extends into the interior of the positioning groove. A positioning groove is provided on one side of the protective shell (2), and a magnet (202) is installed on the inner side of the positioning groove.

4. The telescoping municipal construction measuring stick of claim 1, wherein, A buckle is provided on one side of the handle (201), and an annular groove is opened in the middle of the level (4), with the inner side of the buckle extending into the interior of the annular groove.

5. The telescoping municipal construction measuring scale of claim 1, wherein, A retaining ring is provided at the bottom of the locking rod (3), and a support spring is installed between the retaining ring and the positioning plate. A sliding hole corresponding to the locking rod (3) is opened on one side of the protective housing (2), and the locking rod (3) passes through the interior of the sliding hole. A locking groove corresponding to the locking rod (3) is opened on one side of the first-level measuring ruler (501), and the bottom of the locking rod (3) extends into the interior of the locking groove.

6. A telescoping municipal construction measuring stick according to claim 1, wherein, A positioning plate is provided on the upper side of one side of the first-level measuring ruler (501) and the second-level telescopic ruler (502). A vertical sliding hole is opened on one side of the positioning plate, and a vertical positioning rod (602) is inserted into the sliding hole. The sliding hole, together with the positioning plate, positions the sliding position of the positioning rod (602).

7. A telescoping municipal construction measuring stick according to claim 1, wherein, The bottom of the positioning rod (602) is provided with a locking seat (601), a support spring is installed above the locking seat (601), and a lifting bracket (603) is installed above the locking seat (601). The locking seat (601), the positioning rod (602), and the lifting bracket (603) cooperate to form a locking structure (6). An annular groove is opened above the locking seat (601), and a slot is opened on the inner side of the lifting bracket (603), extending into the interior of the annular groove.

8. A telescoping municipal construction measuring stick according to claim 2, wherein, The upper positions of the secondary telescopic ruler (502) and the tertiary telescopic ruler (503) are respectively provided with a set of evenly distributed locking blocks, and the bottom position of the locking seat (601) is provided with a slot corresponding to the locking block.

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