Telescoping measuring line reel

Abstract

The utility model relates to engineering surveying technical field especially relates to a telescopic measuring rope reel, including the casing, the casing middle part rotationally connected with the rope wheel, is wound with the measuring rope in the rope wheel, is fixedly connected with the pivot on the rope wheel, is fixedly connected with the handle on the pivot, is equipped with the chamber in the casing, is rotatably connected with the rotating shaft in the chamber, the wind board is fixedly connected with annular array on the rotating shaft, is equipped with the exhaust passage on one side of the chamber, is equipped with the air vent in the exhaust passage tail end, is equipped with the belt groove on the rope wheel and rotating shaft respectively, is provided with the transmission belt in two belt grooves. The utility model drives the rope wheel rotation through rotating the handle, drives the rotating shaft fast rotation through the transmission belt at this time, thereby drives the wind board on it to rotate and to blow in the chamber, the wind force produced is transported to the air vent department through the exhaust passage, blows to the rope outlet, blows off the dust adhered to the surface of the measuring rope reeled up, avoids the dust to be reeled up synchronously, leads to the jam, the precision to drop and the service life to shorten.

Description

Technical Field

[0001] This utility model relates to the field of engineering measurement technology, and in particular to a retractable measuring rope reel. Background Technology

[0002] In the field of construction engineering surveying, retractable measuring rope reels are basic tools, but existing products have many compatibility defects in practical applications, making it difficult to meet the needs of efficient operations on construction sites.

[0003] Existing retractable measuring rope reels generally lack reliable end-locking structures. During measurement, one person must hold the end of the rope to fix it while another person operates the reel to release the line and take readings. This not only doubles the manpower but also introduces coordination errors, resulting in low measurement efficiency. This is especially true in special working scenarios such as high altitudes and narrow spaces, where the difficulty and safety risks of two-person operation increase significantly. Furthermore, construction projects often require simultaneous verticality testing (such as wall and column installation calibration), but existing measuring rope reels do not integrate this function. This necessitates carrying additional tools such as plumb bobs, making operation cumbersome and inconvenient to switch between, and measurement accuracy is easily affected by environmental factors.

[0004] In addition, construction sites contain a lot of dust, cement slurry and other impurities, and the measuring rope is easily contaminated with pollutants during use. The existing reel lacks a cleaning structure, and impurities will enter the interior with the rope when it is wound up. After a long period of accumulation, the reel bushing will get stuck and the rope will become tangled, which will affect the smoothness of extension and retraction, as well as reduce the measurement accuracy and the service life of the tool. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a retractable measuring rope reel, which solves the technical problems of existing measuring ropes requiring two people to work together, resulting in low efficiency, lack of integrated verticality detection function, need to carry additional tools, and lack of cleaning structure, which easily leads to the accumulation of impurities causing jamming, decreased accuracy, and shortened lifespan. The new model achieves the goal of enabling efficient measurement by a single person, integrating verticality detection function to simplify operation, preventing impurities from entering to ensure smooth retraction, improving measurement accuracy and tool lifespan, and adapting to the needs of construction site operations.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a retractable measuring rope reel includes a housing, a rope wheel rotatably connected to the middle of the housing, a measuring rope wound inside the rope wheel, a rotating shaft fixedly connected to the rope wheel, a handle fixedly connected to the rotating shaft, a chamber opened inside the housing, a rotating shaft rotatably connected inside the chamber, a rotating air plate fixedly connected in a circular array on the rotating shaft, an exhaust channel opened on one side of the chamber, an exhaust hole opened at the end of the exhaust channel to blow away dust on the surface of the measuring rope, belt grooves opened on the rope wheel and the rotating shaft respectively, and a transmission belt is installed in the two belt grooves.

[0007] A further improvement is that the vent is a tapered hole that is narrow on the outside and wide on the inside, with its angle pointing towards the rope release port of the housing.

[0008] A further improvement is that the housing has a tapered mounting groove inside the rope release port, a snap-fit ​​strip is fixed to the top wall of the mounting groove, an elastic gathering block that matches it is inserted into the mounting groove, and a snap-fit ​​groove that matches the snap-fit ​​strip is opened on the top of the elastic gathering block. A cleaning cotton for cleaning impurities on the surface of the measuring rope is pasted on the inner wall of the elastic gathering block.

[0009] A further improvement is that a conical cavity is provided inside the elastic constriction block, and a cleaning cotton is pasted inside the conical cavity, with the rope outlet on one side perfectly matching the measuring rope.

[0010] A further improvement is that the end of the measuring rope is provided with a buckle that can be fastened to the protrusion, a hanging ring is fixed to the buckle, a storage box is fixed to the top of the housing, and a conical counterweight is provided inside the storage box that can be hung on the hanging ring.

[0011] A further improvement is that a handle is slidably provided in the end slot of the handle, a locking groove adapted to the handle is provided on the outer side of the housing, and magnets are provided on the inner end of the handle and the inner wall of the locking groove.

[0012] By employing the above technical solution, this utility model provides a retractable measuring rope reel, which has at least the following beneficial effects: 1. This utility model uses a handle to rotate the shaft and rope wheel inside the housing, winding up the measuring rope. At this time, the drive belt drives the rotating shaft to rotate rapidly, which in turn drives the wind plate on it to rotate in the chamber to generate air. The generated air force is delivered to the exhaust port through the exhaust channel, and the air speed is further accelerated through the inclined tapered exhaust port, which is narrow on the outside and wide on the inside. The air is blown towards the rope release port, blowing off the dust on the surface of the wound measuring rope, preventing dust from being wound up at the same time, which would cause jamming, reduced accuracy and shorten service life.

[0013] 2. This utility model allows for single-person rope release by fastening the buckle or hanging ring to the protrusion of the building to be tested, and then turning the handle to drive the rope wheel to release the line. This makes the operation simpler and more convenient. When it is necessary to measure the verticality of the building, the storage box can be opened and the conical counterweight inside can be suspended on the hanging ring. Gravity can then be used to detect the verticality of the building, thus improving the detection range of the device.

[0014] 3. This utility model uses the rope release port on the elastic gathering block to squeeze off the mud on its surface, while some of the residual mud is wiped away by the cleaning cotton on the inner wall of the elastic gathering block, thereby preventing mud from being rolled in and causing corrosion and damage to the measuring rope. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is an enlarged, disassembled structural diagram of the rope opening of this utility model; Figure 4 This is a schematic diagram of the independent structure of the elastic constriction block of this utility model; Figure 5 This is a partial cross-sectional view of the shell structure of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the connection structure between the rope wheel and the rotating shaft transmission of this utility model; Figure 8 This is a schematic diagram showing the disassembled structure of the storage box and its internal components according to this utility model.

[0017] In the diagram: 1. Housing; 111. Mounting slot; 112. Snap-fit ​​strip; 113. Elastic retractable block; 114. Snap-fit ​​groove; 115. Cleaning cotton. 2. Rope pulley; 3. Measuring rope; 31. Buckle; 32. Hanging ring; 33. Storage box; 34. Conical counterweight; 4. Shaft; 5. Handle; 51. Grip; 52. Locking groove; 53. Magnet; 6. Chamber; 7. Rotating shaft; 8. Air vane; 9. Exhaust duct; 10. Exhaust port; 11. Belt groove; 12. Drive belt. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] Current measuring rope technologies require two people to operate, resulting in low efficiency. They also lack integrated verticality detection, necessitate carrying additional tools, and lack a cleaning mechanism, leading to impurity buildup, jamming, decreased accuracy, and shortened lifespan. This embodiment provides a retractable measuring rope reel that enables efficient single-person measurement. Integrated verticality detection simplifies operation, prevents impurities from entering to ensure smooth retraction, improves measurement accuracy and tool lifespan, and is suitable for construction site operations. Please refer to... Figures 1-8 The retractable measuring rope reel includes a housing 1, a rope wheel 2 rotatably connected to the middle of the housing 1, a measuring rope 3 wound inside the rope wheel 2, a rotating shaft 4 fixedly connected to the rope wheel 2, a handle 5 fixedly connected to the rotating shaft 4, a chamber 6 opened inside the housing 1, a rotating shaft 7 rotatably connected inside the chamber 6, and rotating air plates 8 fixedly connected in a ring array on the rotating shaft 7, an exhaust channel 9 opened on one side of the chamber 6, and an exhaust hole 10 opened at the end of the exhaust channel 9 to blow away dust from the surface of the measuring rope 3, and belt grooves 11 opened on the rope wheel 2 and the rotating shaft 7 respectively, and a drive belt 12 is installed in the two belt grooves 11.

[0021] The exhaust port 10 is an inclined tapered hole that is narrow on the outside and wide on the inside, with its angle facing the rope release port of the housing 1. After the test is completed, the handle 5 is turned, which drives the rotating shaft 4 and the rope wheel 2 to rotate inside the housing 1 and wind up the measuring rope 3. At this time, the rotating shaft 7 is driven to rotate rapidly through the transmission belt 12, which in turn drives the wind plate 8 on it to rotate in the chamber 6 to generate air. The generated air force is delivered to the exhaust port 10 through the exhaust channel 9, and the air speed is further accelerated through the inclined tapered exhaust port 10, which blows the air towards the rope release port, blowing off the dust on the surface of the wound measuring rope 3, and preventing the dust from being wound up at the same time, which would cause jamming, reduced accuracy and shorten service life.

[0022] Traditional measuring rope measurements require two people and lack integrated verticality detection functionality, necessitating the carrying of additional tools. Therefore, the measuring rope 3 is equipped with a buckle 31 at its end that can be fastened to a protrusion. A hanging ring 32 is fixed to the buckle 31, and a storage box 33 is fixed to the top of the housing 1. Inside the storage box 33, there is a conical counterweight 34 that can be suspended from the hanging ring 32. The buckle 31 or the hanging ring 32 is fastened to the protrusion of the building to be tested, and then the handle 5 is turned to drive the rope wheel 2 to rotate and release the rope. This allows for single-person rope release, making the operation simpler and more convenient. When it is necessary to measure the verticality of the building, the storage box 33 is opened, and the conical counterweight 34 inside is suspended from the hanging ring 32. Gravity can then be used to detect the verticality of the building, thus improving the detection range of the device.

[0023] To prevent accidental release of the wire by accidentally moving the handle 5 during daily use, a grip 51 is slidably provided in the slot at the end of the handle 5. A locking groove 52 adapted to the grip 51 is provided on the outer side of the housing 1. Magnets 53 are provided on the inner end of the grip 51 and the inner wall of the locking groove 52. After measurement, the grip 51 is pressed into the locking groove 52 until the magnets 53 at the inner end of the grip 51 and the magnets 53 in the locking groove 52 attract each other, thus locking the wire. This prevents accidental release of the wire by moving the handle 5, which would cause the measuring rope 3 to become tangled. Sliding the grip 51 into the locking groove 52 also makes it easier to carry and prevents the protruding grip 51 from injuring workers.

[0024] Example 2

[0025] Since the measuring rope 3 may become contaminated with not only dust but also mud during the measurement process, and simple wind blowing cannot remove the mud, therefore, based on Example 1, as follows... Figures 1-8 As shown, the housing 1 has a tapered mounting groove 111 inside the rope release port. A snap-fit ​​strip 112 is fixed to the top wall of the mounting groove 111. An elastic gathering block 113 that is compatible with it is inserted into the mounting groove 111. The top of the elastic gathering block 113 has a snap-fit ​​groove 114 that is compatible with the snap-fit ​​strip 112. A cleaning cotton 115 for cleaning impurities on the surface of the measuring rope 3 is pasted on the inner wall of the elastic gathering block 113.

[0026] The elastic coil block 113 has a conical cavity inside, and the cleaning cotton 115 is attached to the conical cavity, with its rope release port on one side perfectly matching the measuring rope 3. When the measuring rope 3 is wound up, the mud on its surface is squeezed off through the rope release port on the elastic coil block 113, while some residual mud is wiped away by the cleaning cotton 115 on the inner wall of the elastic coil block 113, thus preventing mud from being drawn in and causing corrosion and damage to the measuring rope 3. Pressing the elastic coil block 113 releases it from the mounting groove 111, allowing the cleaning cotton 115 to be replaced periodically to ensure cleaning quality. After replacement, gently press the elastic coil block 113 again to insert it into the mounting groove 111 until the snap-fit ​​groove 114 at its top engages with the snap-fit ​​strip 112 in the mounting groove 111, completing the connection and locking, and preventing the elastic coil block 113 from falling off.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable measuring rope reel, comprising a housing (1), characterized in that: The housing (1) is rotatably connected to a rope wheel (2), a measuring rope (3) is wound inside the rope wheel (2), a rotating shaft (4) is fixed to the rope wheel (2), a handle (5) is fixed to the rotating shaft (4), a chamber (6) is opened inside the housing (1), a rotating shaft (7) is rotatably connected inside the chamber (6), a rotating wind plate (8) is fixed in a ring array on the rotating shaft (7), an exhaust channel (9) is opened on one side of the chamber (6), an exhaust hole (10) is opened at the end of the exhaust channel (9) to blow away the dust on the surface of the measuring rope (3), a belt groove (11) is opened on the rope wheel (2) and the rotating shaft (7), and a transmission belt (12) is installed in the two belt grooves (11).

2. The retractable measuring rope reel according to claim 1, characterized in that: The exhaust port (10) is a tapered hole that is narrow on the outside and wide on the inside, and its angle is directed toward the rope release port of the housing (1).

3. The retractable measuring rope reel according to claim 1, characterized in that: The housing (1) has a tapered mounting groove (111) inside the rope release port. A snap-fit ​​strip (112) is fixed to the top wall of the mounting groove (111). An elastic gathering block (113) that is compatible with it is inserted into the mounting groove (111). A snap-fit ​​groove (114) that is compatible with the snap-fit ​​strip (112) is opened on the top of the elastic gathering block (113). A cleaning cotton (115) for cleaning impurities on the surface of the measuring rope (3) is pasted on the inner wall of the elastic gathering block (113).

4. The retractable measuring rope reel according to claim 3, characterized in that: The elastic gathering block (113) has a conical cavity, and the cleaning cotton (115) is pasted inside the conical cavity, and the rope opening on one side is completely matched with the measuring rope (3).

5. The retractable measuring rope reel according to claim 1, characterized in that: The measuring rope (3) is provided with a buckle (31) that can be fastened to the protrusion at the end. A hanging ring (32) is fixed on the buckle (31). A storage box (33) is fixed on the top of the shell (1). A conical counterweight (34) that can be hung on the hanging ring (32) is provided inside the storage box (33).

6. The retractable measuring rope reel according to claim 1, characterized in that: The handle (5) has a slidable grip (51) in the end slot, and a locking groove (52) adapted to the grip (51) is opened on the outside of the housing (1). The inner end of the grip (51) and the inner wall of the locking groove (52) are provided with magnets (53) that attract each other.

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