CN217764716U - Foldable land measuring scale - Google Patents

Abstract

The utility model relates to the technical field of land surveying, and discloses a foldable land surveying ruler, comprising a tape measure shell. A rotating shaft is connected to one inner wall of the tape measure shell through a bearing, and a tape measure belt and A driven gear, a cover plate is installed on one side wall of the tape measure shell, a winding assembly is fixedly installed on one side wall of the cover plate, and the driven gear is meshed with the winding assembly, and a side wall of the tape measure shell is installed with a The guide assembly, the rotating fixing base and the fixing nut, and the fixing nut and the guiding assembly are respectively located on both sides of the rotating fixing base. The rotating fixing base is hinged with a rotating fixing plate, and one side wall of the rotating fixing plate is provided with a locking screw. The set rotating fixed plate, rotating fixed seat, fixed support and compression spring enable the land measuring ruler to be fixed on the ground during the measurement, and at the same time, it can be folded after the measurement is completed, which is convenient for the staff to carry.

Description

A foldable land measuring ruler

technical field

The utility model relates to the technical field of land measurement, in particular to a foldable land measuring ruler.

Background technique

The tape measure is a common measuring tool in daily life. What you often see is a steel tape measure, which is used to measure house construction or land size measurement. It is also one of the necessary tools for families. It is divided into fiber tape measure, tape measure and waist scale , Luban ruler, Fengshui ruler and Wengong ruler also belong to the steel tape measure.

After retrieval, Chinese patent CN213599959U discloses a land measuring device, which includes a tape measure main body, and the side of the tape measure main body is provided with a rotation control assembly for accelerating the winding of the tape and a cleaning device for cleaning the tape during the winding process, which is rotated by a large gear The small gear is driven to realize the fast winding of the ruler tape, which reduces the time spent on rewinding in the land survey work and speeds up the work efficiency of the land survey. A cleaning device is installed to make the protective layer of the ruler tape clean at the first position during the winding process. Under the action of a spring, the fence on the surface of the tape is scraped off to complete the cleaning, and the cleaning device cooperates with multiple clamping blocks and the second slot to facilitate the installation and disassembly of the entire cleaning device, and the first spring , limit movable rod, and movable groove, it is convenient for the installation and disassembly of the tape and the notch, and it is convenient for the replacement and cleaning of the cleaning device.

The main body of the tape measure in the prior art cannot be folded, which is inconvenient for the staff to carry out, and although the prior art can realize fast rewinding after the measurement is completed, it is relatively laborious when measuring and unwinding, which is inconvenient for the staff to use.

Utility model content

The purpose of this utility model is to provide a foldable land measuring ruler to solve the problem that the main body of the tape measure in the prior art proposed in the above-mentioned background technology cannot be folded, which is inconvenient for the staff to go out and carry, and although the prior art can not be used after the measurement is completed It can achieve fast winding, but it is more laborious to measure and unwind, which is not convenient for the staff to use.

In order to achieve the above object, the utility model provides the following technical solutions: a foldable land measuring ruler, comprising a tape measure housing, one side of the tape measure housing is connected with a rotating shaft through a bearing, and the side walls of the rotating shaft are respectively A tape measure belt and a driven gear are fixedly installed, a cover plate is installed on a side wall of the tape measure housing, a winding assembly is fixedly installed on a side wall of the cover plate, and the driven gear and the retracting gear The roll assembly is meshed and connected, and a guide assembly, a rotating fixing seat and a fixing nut are installed on one side wall of the tape measure housing, and the fixing nut and the guiding assembly are respectively located on both sides of the rotating fixing seat, and the rotating A rotating fixed plate is hinged on the fixed seat, locking screws are arranged on one side wall of the rotating fixed plate, and a sliding hole is opened on the side wall of the rotating fixed plate, and the rotating fixed plate passes through the sliding hole A fixed support is movable and clamped, a compression spring is arranged on the side wall of the fixed support, and a threaded block is installed at one end of the fixed support.

Preferably, a handle is fixedly installed on one side wall of the tape measure housing.

Preferably, fixing nails are respectively installed on the side walls of the fixing support.

Preferably, a protective case is installed on one side wall of the cover plate.

Preferably, the winding assembly includes a sliding frame, the sliding frame is located on a side wall of the cover plate, a sliding plate is movably engaged on the sliding frame, and a sliding plate is mounted on a side wall of the sliding plate through a bearing A rotating shaft is connected, a driving gear is installed on the side wall of the rotating shaft, a rotating handle is installed at one end of the rotating shaft, a connecting plate is installed on a side wall of the sliding frame, and one side of the sliding plate Sliding rods are respectively fixedly installed on the walls, and the sliding rods are movably clamped with the connecting plate, the side walls of the sliding rods are provided with tensioning springs, and one end of the sliding rods is equipped with a moving plate. A jacking screw is arranged on one side wall of the moving plate.

Preferably, the guide assembly includes a fixed side plate, a U-shaped frame is installed on a side wall of the fixed side plate, guide rods are respectively installed on the side walls of the U-shaped frame, and the side walls of the guide rod A guide spring is arranged on the top, and a chute is opened on the side wall of the U-shaped frame, and a pressing block is movably clamped on the U-shaped frame through the chute, and the pressing block and the guide rod Activity snaps.

Technical effect and advantage of the present utility model:

1. Through the set rotating fixed plate, rotating fixed seat, fixed support and compression spring, the land measuring ruler can be fixed on the ground during the measurement, and at the same time, it can be folded after the measurement is completed, which is convenient for the staff to carry.

2. Through the set sliding frame, sliding plate, rotating handle, sliding rod and jacking screw, the land measuring ruler can be quickly rewound after the measurement is completed, and can also be unwound smoothly when measuring and unwinding Measurement.

Description of drawings

Fig. 1 is the schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of the driven gear structure of the utility model.

Fig. 3 is a schematic diagram of the structure of the protective shell of the present invention.

Fig. 4 is a schematic diagram of the structure of the winding assembly of the present invention.

Fig. 5 is a schematic diagram of the structure of the guide assembly of the present invention.

In the figure: 1. Tape measure casing; 2. Rotating shaft; 3. Tape measure belt; 4. Driven gear; 5. Cover plate; 6. Rewinding assembly; 61. Sliding frame; 64, sliding rod; 65, top tightening screw; 66, driving gear; 67, rotating handle; 68, top tightening spring; 69, moving plate; 7, guide assembly; 71, fixed side plate; 72, U-shaped frame; 73 , guide rod; 74, pressing block; 75, guide spring; 8, rotating fixed seat; 9, rotating fixed plate; 10, fixed support; 11, fixed nail; 12, fixed nut; 13, thread block; 14, Handle; 15, compression spring; 16, protective shell; 17, locking screw.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The utility model provides a foldable land measuring ruler as shown in Figures 1-5, comprising a tape measure housing 1, a rotating shaft 2 is connected to one side of the inner wall of the tape measuring housing 1 through a bearing, and the side walls of the rotating shaft 2 are respectively A tape measure belt 3 and a driven gear 4 are fixedly installed, a cover plate 5 is installed on a side wall of the tape measure housing 1, a rewinding assembly 6 is fixedly installed on a side wall of the cover plate 5, and the driven gear 4 and the rewinding The components 6 are meshed and connected, and the winding component 6 is meshed with the driven gear 4, which is conducive to the rapid winding of the land measuring ruler after the measurement is completed. The separation of the winding component 6 and the driven gear 4 is beneficial to the land When the measuring ruler is measuring, the tape tape 3 can be released smoothly. On the side wall of the tape measure housing 1, a guide assembly 7, a rotating fixed seat 8 and a fixing nut 12 are installed, and the fixing nut 12 and the guide assembly 7 are respectively located in the rotating fixed position. Both sides of the seat 8, through the guide assembly 7, help to prevent the tape 3 from shaking too much when unwinding, the rotating fixed seat 8 is hinged with a rotating fixed plate 9, and a locking screw is arranged on the side wall of the rotating fixed plate 9 17. By tightening the screw 17, the rotating fixed plate 9 can be fixed by rotating the fixed seat 8, and a sliding hole is opened on the side wall of the rotating fixed plate 9, and the rotating fixed plate 9 is movably connected to the fixed support through the sliding hole 10. A compression spring 15 is provided on the side wall of the fixed support 10, and a threaded block 13 is installed at one end of the fixed support 10. By loosening the locking screw 17, and then turning the fixed plate 9 to make it parallel to the tape measure casing 1, By manually pressing and rotating the fixed support 10, the threaded block 13 is connected with the fixed nut 12, and then the rotating fixed plate 9 is fixed, which is convenient for the staff to carry. A handle 14 is fixedly installed on the side wall of the tape measure housing 1. By the handle 14, it is beneficial for the staff to carry the land measuring ruler. On the side wall of the fixed support 10, fixed nails 11 are installed respectively. By fixing the nail 11, there are It is beneficial for the fixed support 10 to support the land measuring ruler more stably. A protective shell 16 is installed on one side wall of the cover plate 5 , and the protective shell 16 is beneficial for protecting the winding assembly 6 .

In this embodiment, the winding assembly 6 includes a sliding frame 61, the sliding frame 61 is located on the side wall of the cover plate 5, the sliding plate 62 is movably engaged on the sliding frame 61, and the side wall of the sliding plate 62 passes through the bearing Connect with rotating shaft, driving gear 66 is installed on the side wall of rotating shaft, rotating handle 67 is installed on one end of rotating shaft, connecting plate 63 is installed on the side wall of sliding frame 61, on the side wall of sliding plate 62 respectively A sliding rod 64 is fixedly installed, and the sliding rod 64 is movably clamped with the connecting plate 63. The side wall of the sliding rod 64 is provided with a tensioning spring 68, and one end of the sliding rod 64 is equipped with a moving plate 69, and one side of the moving plate 69 There is a jacking screw 65 on the wall. When the land needs to be measured, manually turn the jacking screw 65 to drive the moving plate 69 to move, so that the sliding rod 64 drives the sliding plate 62 to move, so that the driving gear 66 is separated from the driven gear 4 , is conducive to the unwinding of the tape measure tape 3. After the measurement is completed, the tightening screw 65 is reversed manually, so that the tightening spring 68 can drive the sliding plate 62 to move, so that the driving gear 66 and the driven gear 4 are re-engaged. Turn the rotary handle 67 to make the driving gear 66 drive the driven gear 4 to rotate, so that the rotating shaft 2 drives the tape measure tape 3 to wind up. Since the driving gear 66 is larger than the driven gear 4, the fast winding of the tape measure tape 3 can be realized.

In this embodiment, the guide assembly 7 includes a fixed side plate 71, a U-shaped frame 72 is installed on a side wall of the fixed side plate 71, and guide rods 73 are respectively installed on the side walls of the U-shaped frame 72, and the guide rods 73 The side wall is provided with a guide spring 75, and the side wall of the U-shaped frame 72 is provided with a chute, and the U-shaped frame 72 is movably clamped with a compression block 74 through the chute, and the compression block 74 and the guide rod 73 are movable. Then, the guide spring 75 drives the pressing block 74 to compress the tape measure tape 3, thereby helping to prevent the tape measure tape 3 from shaking too much when unwinding or rewinding.

The practical working principle: the utility model is a folding land measuring ruler. After the measurement is completed, the rotating fixed plate 9 can be rotated by loosening the locking screw 17, and the rotating fixed plate 9 is manually rotated to the outer shell of the tape measure. 1 in parallel, then press the fixed support 10 and rotate it, so that the threaded block 13 and the fixed nut 12 are fixed, so that the rotating fixed plate 9 is fixed, which is convenient for the staff to carry.

When it is necessary to unwind and measure, the moving plate 69 is moved by turning the tightening screw 65, so that the sliding rod 64 drives the sliding plate 62 to move, and then the driving gear 66 is separated from the driven gear 4, which is beneficial to the tape measure belt 3 Unwinding, after the measurement is completed, by reversing the tightening screw 65, the tightening spring 68 drives the sliding plate 62 to move, so that the driving gear 66 is re-engaged with the driven gear 4, and then the rotary handle 67 is turned to drive the driving gear 66 to move. The driven gear 4 rotates, so that the rotating shaft 2 drives the tape measure tape 3 to wind up.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (6)

1. A foldable land measuring ruler, comprising a tape measure housing (1), is characterized in that: a side inner wall of the tape measure housing (1) is connected with a rotating shaft (2) by a bearing, and the rotating shaft (2) A tape measure band (3) and a driven gear (4) are respectively fixedly installed on the side walls of the tape measure housing (1). A winding assembly (6) is fixedly installed on the side wall, and the driven gear (4) is meshed with the winding assembly (6), and a guide assembly is installed on the side wall of the tape measure housing (1) (7), rotate the fixing seat (8) and the fixing nut (12), and the fixing nut (12) and the guide assembly (7) are respectively located on both sides of the rotating fixing seat (8), and the rotating A rotating fixed plate (9) is hinged on the fixed seat (8), and a locking screw (17) is arranged on a side wall of the said rotating fixed plate (9). A sliding hole is provided, and the rotating fixed plate (9) is movably clamped with a fixed support (10) through the sliding hole, and a compression spring (15) is arranged on the side wall of the fixed support (10). One end of the fixed support (10) is equipped with a threaded block (13). 2. A foldable land measuring ruler according to claim 1, characterized in that: a handle (14) is fixedly installed on a side wall of the tape measure housing (1). 3. A foldable land measuring ruler according to claim 1, characterized in that: fixed nails (11) are respectively installed on the side walls of the fixed support (10). 4. A foldable land measuring ruler according to claim 1, characterized in that: a protective case (16) is installed on one side wall of the cover plate (5). 5. A foldable land measuring ruler according to claim 1, characterized in that: the winding assembly (6) includes a sliding frame (61), and the sliding frame (61) is located on the cover plate (5 ), on the side wall of the sliding frame (61), a sliding plate (62) is movably clamped, and the side wall of the sliding plate (62) is connected with a rotating shaft through a bearing, and the side of the rotating shaft Driving gear (66) is installed on the wall, and a rotating handle (67) is installed on one end of described rotating shaft, and connecting plate (63) is installed on the side wall of described sliding frame (61), and described sliding plate (62 ) are fixedly installed with sliding rods (64) on the side walls, and the sliding rods (64) are movably clamped with the connecting plate (63), and the side walls of the sliding rods (64) are provided with top Tighten the spring (68), one end of the slide bar (64) is equipped with a moving plate (69), and the side wall of the moving plate (69) is provided with a tightening screw (65). 6. A foldable land measuring ruler according to claim 1, characterized in that: the guide assembly (7) includes a fixed side plate (71), and the side wall of the fixed side plate (71) is installed U-shaped frame (72) is arranged, and guide bar (73) is respectively installed on the side wall of described U-shaped frame (72), and guide spring (75) is arranged on the side wall of described guide bar (73), and described A side wall of the U-shaped frame (72) is provided with a chute, and the U-shaped frame (72) is movably clamped with a compression block (74) through the chute, and the compression block (74) is connected with the The guide rod (73) is movably clamped.

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