A portable length measuring device

Abstract

The utility model relates to measuring device technical field, concretely is a kind of portable length measuring device, including main ruler, secondary ruler and support disc, further including turntable, drive mechanism, brush tape, extruding block, connecting mechanism, main piston plate and secondary piston plate, turntable is connected with main ruler, drive mechanism is connected with turntable, brush tape is connected with drive mechanism, extruding block is fixedly connected with secondary ruler, connecting mechanism is connected with extruding block, when turntable rotates, drive mechanism controls secondary ruler to move horizontally in main ruler and drives brush tape to clean below support disc, when secondary ruler moves, extruding block controls main piston plate and secondary piston plate to move towards to generate negative pressure to improve main ruler and workpiece connection strength by connecting mechanism, by double cleaning to the surface of measured object, to ensure that main ruler, secondary ruler and measured object are closely adhered, simultaneously by controlling main piston plate and secondary piston plate to move towards to generate negative pressure and connect main ruler and measured object, improve measurement result.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, specifically a portable length measuring device. Background Technology

[0002] The measuring device mostly uses a combination of rulers for measurement, mainly for verticality, horizontality, and flatness detection. It consists of two sets of foldable rulers, which is convenient for detecting whether the wall surface and tiles are flat and vertical, and whether the floor joists are horizontal and flat.

[0003] With the development of society, length measuring devices are widely used in construction engineering. Currently, most measuring rulers use foldable components. When horizontal connection is required, the measuring ruler needs to be supported. However, since the connection of the existing level rulers uses a belt connection, it is easy to loosen during use, resulting in inaccurate detection and reducing the accuracy of the equipment. This needs to be improved.

[0004] To address the aforementioned problems, existing technologies provide a solution. For example, patent publication number CN215639178U provides a portable length measuring device for building construction, including a measuring scale one, a stabilizing block, a measuring scale two, a mounting block, a connecting block, a horizontal tube, and a reinforcing device. The stabilizing block is fixedly connected to the surface of the measuring scale one, the measuring scale two is disposed on one side of the measuring scale one, the mounting block is fixedly connected to the surface of the measuring scale two, the connecting block is fixedly connected to the surface of the measuring scale two, and the surface of the connecting block is rotatably connected to the inner wall of the measuring scale one. This invention incorporates a reinforcement device to strengthen the connection points of the measuring ruler. This avoids the problem of existing measuring rulers using foldable components, which require the ruler to be supported when horizontal connections are needed. However, existing horizontal rulers use a connecting belt, which is prone to loosening during use, leading to inaccurate measurements. This solution effectively improves the accuracy and stability of the equipment, facilitating its normal use. While existing devices can improve stability and measurement accuracy, they are prone to imbalance when large particles adhere to the surface of the object being measured, and the measuring device may not maintain a tight fit with the object, resulting in measurement errors.

[0005] To address this, a portable length measuring device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a portable length measuring device to solve the above-mentioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A portable length measuring device includes a main scale, a secondary scale, and a support plate. It also includes a turntable, a drive mechanism, a brush belt, a pressing block, a connecting mechanism, a main piston plate, and a secondary piston plate. The turntable is connected to the main scale, the drive mechanism is connected to the turntable, the brush belt is connected to the drive mechanism, the pressing block is fixedly connected to the secondary scale, and the connecting mechanism is connected to the pressing block. Both the main piston plate and the secondary piston plate are connected to the connecting mechanism. When the turntable rotates, the drive mechanism controls the secondary scale to move horizontally within the main scale and drives the brush belt to clean the area below the support plate. When the secondary scale moves, the pressing block, through the connecting mechanism, controls the main piston plate and the secondary piston plate to move towards each other to generate negative pressure, thereby increasing the connection strength between the main scale and the workpiece.

[0009] Preferably, the driving mechanism includes a screw, a connecting plate, a guide block, a guide rod, a main gear, a fixed rack, a belt, a drive gear, a transmission belt, a connecting gear, and a rotating rod. The screw is fixedly installed at one end of the turntable, the connecting plate is threadedly connected to the screw, the guide block is fixedly installed at both ends of the connecting plate, the guide rod is slidably connected to the guide block, the main gear is rotatably installed at the bottom end of the connecting plate, the fixed rack meshes with the main gear, the belt is in contact with the main gear, the drive gear is in contact with the belt, the transmission belt is in contact with the drive gear, the connecting gear is in contact with the transmission belt, the rotating rod is fixedly installed at the bottom end of the connecting gear, and the brush belt is in contact with the rotating rod.

[0010] Preferably, the main ruler has a storage cavity and a guide groove inside, the storage cavity and the guide groove are connected, and two sets of guide grooves are symmetrically arranged around the center line of the storage cavity. The guide block and the guide rod are both installed in the guide groove.

[0011] Preferably, the center lines of the main scale, secondary scale, main gear and drive gear coincide, and the center lines of the drive gear, connecting gear and support disk coincide.

[0012] Preferably, the connecting mechanism includes a pressure block, a horizontal rack, a horizontal spring, a horizontal plate, a vertical spring, a support plate, and a spur gear. The pressure block is connected to the pressing block, the horizontal rack is slidably connected to the pressure block, the horizontal spring and the vertical spring are both installed inside the horizontal rack, the horizontal plate is fixedly installed at one end of the horizontal spring, the support plate is fixedly installed at one end of the vertical spring, and the spur gear meshes with the horizontal rack.

[0013] Preferably, the transverse rack has a moving groove inside, the moving groove including an inclined part, a straight part and a vertical part, the inclined part cooperates with the bottom end of the pressure block, and the width of the vertical part is the same as the width of the pressure block.

[0014] Preferably, the bottom end of the extrusion block and the top end of the pressure block are both provided with a connecting part, and the inclination of the connecting part is 45 degrees.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By controlling the extension of the main scale and secondary scale, the support plate is moved forward to clean impurities on the surface of the object being measured. At the same time, the cleaned path is further cleaned by a brush belt to ensure a tight fit between the main scale, secondary scale, and the object being measured. Meanwhile, by controlling the opposing movement of the main piston plate and secondary piston plate to generate negative pressure, the main scale and the object being measured are connected, which can improve the measurement results. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the main scale cross-section of this utility model;

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the drive mechanism of this utility model;

[0020] Figure 4 This is a side sectional view of the support plate structure of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the connecting mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the main cross-sectional structure of the connection mechanism of this utility model.

[0023] In the diagram: 1. Main scale; 2. Secondary scale; 3. Support plate; 4. Turntable; 5. Drive mechanism; 51. Screw; 52. Connecting plate; 53. Guide block; 54. Guide rod; 55. Main gear; 56. Fixed rack; 57. Belt; 58. Drive gear; 59. Transmission belt; 510. Connecting gear; 511. Rotating rod; 512. Storage cavity; 513. Guide groove; 6. Brush belt; 7. Extrusion block; 8. Connecting mechanism; 82. Pressure block; 83. Horizontal rack; 84. Horizontal spring; 85. Horizontal plate; 86. Vertical spring; 87. Support plate; 88. Spur gear; 89. Motion groove; 891. Inclined part; 892. Straight part; 893. Vertical part; 810. Connecting part; 9. Main piston plate; 10. Secondary piston plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the embodiments described below are only some embodiments of the present utility model, and not all of them. If other embodiments are obtained by those skilled in the art without creative effort, they shall fall within the protection scope of the present utility model.

[0025] Reference Figures 1 to 6 A portable length measuring device includes a main scale 1, a secondary scale 2, and a support plate 3. It also includes a turntable 4, a drive mechanism 5, a brush belt 6, a pressing block 7, a connecting mechanism 8, a main piston plate 9, and a secondary piston plate 10. The turntable 4 is connected to the main scale 1, the drive mechanism 5 is connected to the turntable 4, the brush belt 6 is connected to the drive mechanism 5, the pressing block 7 is fixedly connected to the secondary scale 2, and the connecting mechanism 8 is connected to the pressing block 7. The main piston plate 9 and the secondary piston plate 10 are both connected to the connecting mechanism 8. When the turntable 4 rotates, the drive mechanism 5 controls the secondary scale 2 to move horizontally within the main scale 1 and drives the brush belt 6 to clean the area below the support plate 3. When the secondary scale 2 moves, the pressing block 7 controls the main piston plate 9 and the secondary piston plate 10 to move towards each other through the connecting mechanism 8 to generate negative pressure and improve the connection strength between the main scale 1 and the workpiece.

[0026] As one embodiment of this utility model, refer to Figures 2 to 4 The drive mechanism 5 includes a screw 51, a connecting plate 52, a guide block 53, a guide rod 54, a main gear 55, a fixed rack 56, a belt 57, a drive gear 58, a transmission belt 59, a connecting gear 510, and a rotating rod 511. The screw 51 is fixedly installed at one end of the turntable 4. The connecting plate 52 is threadedly connected to the screw 51. The guide block 53 is fixedly installed at both ends of the connecting plate 52. The guide rod 54 is slidably connected to the guide block 53. The main gear 55 is rotatably installed at the bottom end of the connecting plate 52. The fixed rack 56 meshes with the main gear 55. The belt 57 is in contact with the main gear 55. The drive gear 58 is in contact with the belt 57. The transmission belt 59 is in contact with the drive gear 58. The connecting gear 510 is in contact with the transmission belt 59. The rotating rod 511 is fixedly installed at the bottom end of the connecting gear 510. The brush belt 6 and... The rotating rod 511 is fitted together. The main scale 1 has a storage cavity 512 and a guide groove 513 inside. The storage cavity 512 and the guide groove 513 are connected. The storage cavity 512 allows the secondary scale 2 to be stored when not in use, reducing the size of the device and making it easier to carry. Two sets of guide grooves 513 are symmetrically arranged around the center line of the storage cavity 512. The guide block 53 and the guide rod 54 are installed in the guide groove 513. The guide groove 513 provides space for the movement of the guide block 53. The center lines of the main scale 1, secondary scale 2, main gear 55 and drive gear 58 coincide. The center lines of drive gear 58, connecting gear 510 and support plate 3 coincide. Through the above arrangement, the drive gear 58 can maintain stable rotation and avoid the device from becoming unbalanced.

[0027] As one embodiment of this utility model, refer to Figure 5 and Figure 6The connecting mechanism 8 includes a pressure block 82, a horizontal rack 83, a horizontal spring 84, a horizontal plate 85, a vertical spring 86, a support plate 87, and a spur gear 88. The pressure block 82 is connected to the pressing block 7. The horizontal rack 83 is slidably connected to the pressure block 82. The horizontal spring 84 and the vertical spring 86 are both installed inside the horizontal rack 83. The horizontal plate 85 is fixedly installed at one end of the horizontal spring 84, and the support plate 87 is fixedly installed at one end of the vertical spring 86. The spur gear 88 meshes with the horizontal rack 83. A movement groove 89 is provided inside the horizontal rack 83. The movement groove 89 provides space for the movement of the horizontal spring 84, the horizontal plate 85, the vertical spring 86, the support plate 87, and the pressure block 82. The movement groove 89 includes an inclined part 891 and a straight part 892. 92 and the vertical part 893, the inclined part 891 and the bottom end of the pressure block 82 are engaged. The width of the vertical part 893 is the same as the width of the pressure block 82. Through the above arrangement, the pressure block 82 can be accommodated after being subjected to the pressure of the extrusion block 7, so as to facilitate the movement of the extrusion block 7 to the other side of the pressure block 82 and avoid obstructing the movement of the secondary ruler 2. The bottom end of the extrusion block 7 and the top end of the pressure block 82 are provided with connecting parts 810. The inclination of the connecting parts 810 is 45 degrees. Through the above arrangement, the extrusion block 7 and the pressure block 82 can be smoothly transitioned, and the strong collision between the extrusion block 7 and the pressure block 82 can be avoided during the connection, thereby achieving protection for the extrusion block 7 and the pressure block 82.

[0028] Working principle: When in use, the user places the main scale 1 on the surface of the object being measured, and then controls the turntable 4 to rotate. When the turntable 4 rotates, it drives the screw 51 to rotate. When the screw 51 rotates, it drives the secondary scale 2 to move horizontally through the connecting plate 52. When the secondary scale 2 moves, it can perform the first cleaning of impurities on the surface of the object being measured. When the secondary scale 2 moves, it can drive the guide block 53 to slide on the guide rod 54, and at the same time drive the main gear 55 to move synchronously. When the main gear 55 moves, it can mesh with the fixed rack 56, thereby driving the drive gear 58 to rotate through the belt 57. When the drive gear 58 rotates, it can drive the connecting gear 510 to rotate through the transmission belt 59. When the connecting gear 510 rotates, it can drive the rotating rod 511 to rotate. At the same time, the rotating rod 511 drives the brush belt 6 to rotate to achieve a second cleaning of the surface of the object being measured.

[0029] When the secondary ruler 2 moves, it can drive the pressing block 7 to move synchronously. When the pressing block 7 moves, it can push the bearing block 82 to move synchronously. When the bearing block 82 moves above the vertical part 893, it can press the connecting part 810 of the pressing block 7 to control the bearing block 82 and the support plate 87 to descend synchronously and press the vertical spring 86. When the pressing block 7 moves to one end of the motion groove 89, it can drive the horizontal rack 83 to move synchronously. When the horizontal rack 83 moves, it can drive the spur gear 88 to rotate. When the spur gear 88 rotates, it can drive another set of horizontal racks 83 to move horizontally. When the horizontal rack 83 moves, it can drive the main piston plate 9 and the secondary piston plate 10 to move towards each other, thereby generating negative pressure in the main ruler 1 to connect the main ruler 1 with the measuring object.

[0030] Although the embodiments of this utility model have been described in detail with reference to the accompanying drawings, those skilled in the art can make changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of this utility model. The appended claims and their equivalents define the scope of this utility model.

Claims

1. A portable length measuring device, comprising a main scale (1), a secondary scale (2), and a support plate (3), characterized in that: It also includes a turntable (4), a drive mechanism (5), a brush belt (6), an extrusion block (7), a connecting mechanism (8), a main piston plate (9), and a secondary piston plate (10). The turntable (4) is connected to the main ruler (1), the drive mechanism (5) is connected to the turntable (4), the brush belt (6) is connected to the drive mechanism (5), the extrusion block (7) is fixedly connected to the secondary ruler (2), the connecting mechanism (8) is connected to the extrusion block (7), and both the main piston plate (9) and the secondary piston plate (10) are connected to the connecting mechanism (8). When the turntable (4) rotates, the drive mechanism (5) controls the secondary ruler (2) to move horizontally within the main ruler (1) and drives the brush belt (6) to clean the area below the support plate (3). When the secondary ruler (2) moves, the extrusion block (7) controls the main piston plate (9) and the secondary piston plate (10) to move towards each other through the connecting mechanism (8) to generate negative pressure and improve the connection strength between the main ruler (1) and the workpiece.

2. The portable length measuring device according to claim 1, characterized in that: The drive mechanism (5) includes a screw (51), a connecting plate (52), a guide block (53), a guide rod (54), a main gear (55), a fixed rack (56), a belt (57), a drive gear (58), a transmission belt (59), a connecting gear (510), and a rotating rod (511). The screw (51) is fixedly installed at one end of the turntable (4). The connecting plate (52) is threadedly connected to the screw (51). The guide block (53) is fixedly installed at both ends of the connecting plate (52). The guide rod (54) slides against the guide block (53). The main gear (55) is rotatably mounted on the bottom end of the connecting plate (52). The fixed rack (56) meshes with the main gear (55). The belt (57) is fitted with the main gear (55). The drive gear (58) is fitted with the belt (57). The transmission belt (59) is fitted with the drive gear (58). The connecting gear (510) is fitted with the transmission belt (59). The rotating rod (511) is fixedly mounted on the bottom end of the connecting gear (510). The brush belt (6) is fitted with the rotating rod (511).

3. A portable length measuring device according to claim 2, characterized in that: The main ruler (1) has a storage cavity (512) and a guide groove (513) inside. The storage cavity (512) and the guide groove (513) are connected. Two sets of guide grooves (513) are symmetrically arranged around the center line of the storage cavity (512). The guide block (53) and the guide rod (54) are both installed in the guide groove (513).

4. A portable length measuring device according to claim 3, characterized in that: The center lines of the main scale (1), secondary scale (2), main gear (55) and drive gear (58) coincide, and the center lines of the drive gear (58), connecting gear (510) and support disk (3) coincide.

5. A portable length measuring device according to claim 1, characterized in that: The connecting mechanism (8) includes a pressure block (82), a horizontal rack (83), a horizontal spring (84), a horizontal plate (85), a vertical spring (86), a support plate (87), and a spur gear (88). The pressure block (82) is connected to the pressing block (7). The horizontal rack (83) is slidably connected to the pressure block (82). The horizontal spring (84) and the vertical spring (86) are both installed inside the horizontal rack (83). The horizontal plate (85) is fixedly installed at one end of the horizontal spring (84). The support plate (87) is fixedly installed at one end of the vertical spring (86). The spur gear (88) meshes with the horizontal rack (83).

6. A portable length measuring device according to claim 5, characterized in that: The transverse rack (83) has a moving groove (89) inside. The moving groove (89) includes an inclined part (891), a straight part (892) and a vertical part (893). The inclined part (891) is engaged with the bottom end of the pressure block (82). The width of the vertical part (893) is the same as the width of the pressure block (82).

7. A portable length measuring device according to claim 6, characterized in that: The bottom end of the extrusion block (7) and the top end of the pressure block (82) are both provided with a connecting part (810), and the inclination of the connecting part (810) is 45 degrees.

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