Ruler with self-calibration function

Abstract

The utility model discloses a ruler with a self-calibration function, which particularly relates to the field of measuring tools and comprises an electronic ruler body, and an automatic calibration mechanism is arranged at the top end of the electronic ruler body. The automatic calibration mechanism comprises extension plates, a sliding groove, a telescopic spring, a sliding plate, a first connecting plate, an infrared signal receiver, a second connecting plate, an infrared laser transmitter and a display screen, and the extension plates are connected to the two ends of the electronic ruler body in a screwed mode. An operator measures an object and watches measurement data through the infrared signal receiver, the infrared laser transmitter and the display screen, and after measurement is finished, the infrared signal receiver is restored to the original position through the telescopic spring, so that the purpose of automatic and rapid calibration is achieved, the operator does not need to carry out mobile calibration on the device, and the calibration efficiency is improved. Measurement time is reduced, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of measuring tools, and more specifically, to a ruler with a self-calibration function. Background Art

[0002] Rulers are widely used in mathematics, measurement, engineering and other disciplines. They are ruler-shaped gauges with precise straight edges. Rulers are used to measure straightness and flatness using the light gap method. They can also be used with gauge blocks to check length dimensions.

[0003] After measuring an object, an existing ruler often needs to be manually calibrated with an instrument. This method of calibration is slow, thereby increasing the time of measuring the object, and the calibration instrument needs to be carried when using it, which is inconvenient to use;

[0004] Therefore, in order to solve the above problems, a ruler with a self-calibration function is proposed. Utility Model Content

[0005] In order to overcome the above defects of the prior art, an embodiment of the utility model provides a ruler with a self-calibration function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a ruler with a self-calibration function, comprising an electronic ruler body, the top of which is provided with an automatic calibration mechanism, the automatic calibration mechanism comprising an extension plate, a slide groove, a telescopic spring, a slide plate, a first connecting plate, an infrared signal receiver, a second connecting plate, an infrared laser transmitter and a display screen;

[0007] Extension plates are screwed onto both ends of the electronic ruler body, and slide grooves are provided on the tops of the electronic ruler body and the extension plates. A telescopic spring is fixedly connected to the side wall of the extension plate, and a slide plate slidably connected to the slide groove is fixedly connected to one side of the telescopic spring. A first connecting plate is fixedly connected to the top of the slide plate, and an infrared signal receiver is fixedly connected to the side wall of the first connecting plate. A second connecting plate is fixedly connected to the top of the extension plate, and an infrared laser transmitter is fixedly connected to the side wall of the second connecting plate. A display screen is fixedly connected to the top of the electronic ruler body.

[0008] Preferably, a fixing mechanism is provided on the side wall of the electronic ruler body, and the fixing mechanism includes a fixing rod, a fixing plate, a connecting block, a pull rod, a pull block, a reset spring, a fixing block and an opening.

[0009] Preferably, the side wall of the electronic ruler body is fixedly connected to a fixing rod, the surface of the fixing rod is rotatably connected to a fixing plate, the side wall of the fixing plate is fixedly connected to a connecting block, a pull rod passes through the inside of the fixing plate, one side of the pull rod is fixedly connected to a pull block, the side wall of the pull block is fixedly connected to a reset spring fixedly connected to the inner wall of the connecting block, the side wall of the extension plate is fixedly connected to the fixing block, and an opening is provided at the bottom end of the fixing plate.

[0010] Preferably, a hanging buckle is fixedly connected to the bottom end of the electronic ruler body, and a measuring plate is provided at the bottom ends of the infrared signal receiver and the infrared laser transmitter.

[0011] Preferably, the infrared signal receiver, the infrared laser transmitter and the display screen are electrically connected.

[0012] Preferably, the infrared signal receiver is of SH model, and the infrared laser transmitter is of KDTA model.

[0013] Preferably, the skateboard has a cross shape.

[0014] Preferably, a groove is formed at the top of the connecting block to fit with the outer wall of the pulling block.

[0015] Technical effects and advantages of the utility model:

[0016] 1. Compared with the prior art, the device controls the movement of the infrared signal receiver through the first connecting plate, the slide plate and the telescopic spring, and enables the operator to measure the object and view the measurement data through the infrared signal receiver, the infrared laser transmitter and the display screen. After the measurement, the infrared signal receiver is restored to its original position through the telescopic spring, thereby achieving the purpose of automatic and rapid calibration, without the need for the operator to move and calibrate it, reducing the measurement time and being easy to use.

[0017] 2. Compared with the prior art, the device controls the closing and opening of the opening through a pull block, a reset spring, and a pull rod. When the opening is opened, the extension plate is released and rotated to the bottom end of the electronic ruler body. When the opening is closed, the extension plate is fixed, thereby facilitating the storage and carrying of the electronic ruler body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the automatic calibration mechanism of the utility model.

[0020] Figure 3 It is a schematic diagram of the fixing mechanism of the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of area A of the utility model.

[0022] Figure 5 It is a schematic diagram of the motion viewing angle structure of the extension plate of the utility model.

[0023] The accompanying drawings are marked as follows: 1. electronic ruler body; 2. automatic calibration mechanism; 201. extension plate; 202. slide groove; 203. telescopic spring; 204. slide plate; 205. first connecting plate; 206. infrared signal receiver; 207. second connecting plate; 208. infrared laser transmitter; 209. display screen; 3. fixing mechanism; 301. fixing rod; 302. fixing plate; 303. connecting block; 304. pull rod; 305. pull block; 306. reset spring; 307. fixing block; 308. opening; 4. hanging buckle; 5. measuring plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] As attached Figure 1 to Figure 2 A ruler with a self-calibration function shown in the figure comprises an electronic ruler body 1, an automatic calibration mechanism 2 is arranged at the top of the electronic ruler body 1, and the automatic calibration mechanism 2 comprises an extension plate 201, a slide groove 202, a telescopic spring 203, a slide plate 204, a first connecting plate 205, an infrared signal receiver 206, a second connecting plate 207, an infrared laser transmitter 208 and a display screen 209;

[0027] Extension plates 201 are screwed onto both ends of the electronic ruler body 1, and a slide groove 202 is provided at the top of the electronic ruler body 1 and the extension plate 201. A telescopic spring 203 is fixedly connected to the side wall of the extension plate 201, and a slide plate 204 slidably connected to the slide groove 202 is fixedly connected to one side of the telescopic spring 203. A first connecting plate 205 is fixedly connected to the top of the slide plate 204, and an infrared signal receiver 206 is fixedly connected to the side wall of the first connecting plate 205. A second connecting plate 207 is fixedly connected to the top of the extension plate 201, and an infrared laser transmitter 208 is fixedly connected to the side wall of the second connecting plate 207. A display screen 209 is fixedly connected to the top of the electronic ruler body 1, and the infrared signal receiver 206, the infrared laser transmitter 208 and the display screen 209 are electrically connected. The infrared signal receiver 206 is a SH0038 model, and the infrared laser transmitter 208 is a KDT6315A model. The shape of the slide plate 204 is cross-shaped.

[0028] The electronic ruler body 1 is placed on the object to be measured, the measuring plate 5 is pressed against the object, the infrared laser transmitter 208 and the infrared signal receiver 206 start to work, and then the first connecting plate 205 is pulled, the first connecting plate 205 drives the slide plate 204 to stretch the telescopic spring 203 and move along the track of the slide groove 202, and the first connecting plate 205 drives the infrared signal receiver 206 to start moving at the same time. By setting the shape of the slide plate 204 to be cross-shaped, the first connecting plate 205 and the infrared signal receiver 206 can be stably moved. The infrared signal receiver 206 receives the signal of the infrared laser transmitter 208 and sends the measurement data to the display screen 209 for the convenience of the operator to watch. After the measurement is completed, the first connecting plate 205 is released, and the telescopic spring 203 restores the elastic force to restore the infrared signal receiver 206 to its original position, thereby achieving the purpose of automatic and fast calibration, without the need for the operator to move and calibrate it, thereby reducing the measurement time.

[0029] Embodiment 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4As shown, see the following description for details: the side wall of the electronic ruler body 1 is provided with a fixing mechanism 3, the fixing mechanism 3 includes a fixing rod 301, a fixing plate 302, a connecting block 303, a pull rod 304, a pull block 305, a reset spring 306, a fixing block 307 and an opening 308, the side wall of the electronic ruler body 1 is fixedly connected with the fixing rod 301, the surface of the fixing rod 301 is rotatably connected with the fixing plate 302, the side wall of the fixing plate 302 is fixedly connected with the connecting block 303, the inside of the fixing plate 302 is penetrated by the pull rod 304, one side of the pull rod 304 is fixedly connected with the pull block 305, and the side wall of the pull block 305 is fixedly connected with a reset spring fixedly connected to the inner wall of the connecting block 303 Spring 306, the side wall of the extension plate 201 is fixedly connected with a fixing block 307, and the bottom end of the fixing plate 302 is provided with an opening 308; further, the pulling block 305 is pulled along the groove at the top of the connecting block 303, the pulling block 305 compresses the reset spring 306, and drives the pull rod 304 to move in the same direction to open the opening 308, then, the fixing plate 302 is rotated along the outer wall of the fixing rod 301 to release the fixation of the extension plate 201, and the extension plate 201 is rotated to the bottom end of the electronic ruler body 1, and the above operation is reversed to fix the extension plate 201, and the extension plate 201 is folded, thereby facilitating the storage and carrying of the electronic ruler body 1.

[0031] As a preferred embodiment, a hanging buckle 4 is fixedly connected to the bottom end of the electronic ruler body 1, and a measuring plate 5 is provided at the bottom ends of the infrared signal receiver 206 and the infrared laser transmitter 208; further, the electronic ruler body 1 is carried by the hanging buckle 4.

[0032] As a preferred embodiment, a groove is formed at the top of the connection block 303 to fit the outer wall of the pull block 305 ; further, the pull block 305 is pulled along the groove at the top of the connection block 303 , and the groove serves the purpose of limiting the movement of the pull block 305 .

[0033] The working process of the utility model is as follows: when using the ruler with self-calibration function, first, the electronic ruler body 1 needs to be placed on the object to be measured, and the measuring plate 5 is pressed against the object, and the infrared laser transmitter 208 and the infrared signal receiver 206 start to work, and then the first connecting plate 205 is pulled, and the first connecting plate 205 drives the slide plate 204 to stretch the telescopic spring 203 and move along the track of the slide groove 202. The first connecting plate 205 also drives the infrared signal receiver 206 to start moving. By setting the shape of the slide plate 204 to be cross-shaped, the first connecting plate 205 and the infrared signal receiver 206 can be stably moved. The infrared signal receiver 206 receives the signal of the infrared laser transmitter 208 and sends the measurement data to the display screen 209 for the convenience of the operator to watch. After the measurement is completed. After that, the first connecting plate 205 is released, and the telescopic spring 203 restores the elastic force to restore the infrared signal receiver 206 to its original position, thereby achieving the purpose of automatic calibration, without the need for the operator to move and calibrate it. Then, the pulling block 305 can be pulled along the groove at the top of the connecting block 303, and the pulling block 305 compresses the reset spring 306 and drives the pull rod 304 to move in the same direction to open the opening 308. Subsequently, the fixing plate 302 is rotated along the outer wall of the fixing rod 301 to release the fixation of the extension plate 201, and the extension plate 201 is rotated to the bottom end of the electronic ruler body 1, and the above operation is reversed to fix the extension plate 201, and the extension plate 201 is folded. Finally, the electronic ruler body 1 is carried by the hanging buckle 4, which is convenient for storing and carrying the electronic ruler body 1. This is the working principle of this ruler with self-calibration function.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A ruler with a self-calibration function, comprising an electronic ruler body (1), characterized in that: An automatic calibration mechanism (2) is arranged at the top end of the electronic ruler body (1), and the automatic calibration mechanism (2) comprises an extension plate (201), a slide groove (202), a telescopic spring (203), a slide plate (204), a first connecting plate (205), an infrared signal receiver (206), a second connecting plate (207), an infrared laser transmitter (208) and a display screen (209); Extension plates (201) are screwed onto the two ends of the electronic ruler body (1); the tops of the electronic ruler body (1) and the extension plate (201) are both provided with a slide groove (202); a telescopic spring (203) is fixedly connected to the side wall of the extension plate (201); a slide plate (204) slidably connected to the slide groove (202) is fixedly connected to one side of the telescopic spring (203); a first connecting plate (205) is fixedly connected to the top of the slide plate (204); an infrared signal receiver (206) is fixedly connected to the side wall of the first connecting plate (205); a second connecting plate (207) is fixedly connected to the top of the extension plate (201); an infrared laser transmitter (208) is fixedly connected to the side wall of the second connecting plate (207); and a display screen (209) is fixedly connected to the top of the electronic ruler body (1).

2. A ruler with self-calibration function according to claim 1, characterized in that: The side wall of the electronic ruler body (1) is provided with a fixing mechanism (3), and the fixing mechanism (3) comprises a fixing rod (301), a fixing plate (302), a connecting block (303), a pull rod (304), a pull block (305), a reset spring (306), a fixing block (307) and an opening (308).

3. A ruler with self-calibration function according to claim 1, characterized in that: The side wall of the electronic ruler body (1) is fixedly connected to a fixing rod (301), the surface of the fixing rod (301) is rotatably connected to a fixing plate (302), the side wall of the fixing plate (302) is fixedly connected to a connecting block (303), a pull rod (304) passes through the interior of the fixing plate (302), one side of the pull rod (304) is fixedly connected to a pulling block (305), the side wall of the pulling block (305) is fixedly connected to a reset spring (306) fixedly connected to the inner wall of the connecting block (303), the side wall of the extension plate (201) is fixedly connected to a fixing block (307), and an opening (308) is provided at the bottom end of the fixing plate (302).

4. A ruler with self-calibration function according to claim 1, characterized in that: A hanging buckle (4) is fixedly connected to the bottom end of the electronic ruler body (1), and a measuring plate (5) is disposed at the bottom ends of the infrared signal receiver (206) and the infrared laser transmitter (208).

5. The ruler with self-calibration function according to claim 1, characterized in that: The infrared signal receiver (206), the infrared laser transmitter (208) and the display screen (209) are electrically connected.

6. A ruler with self-calibration function according to claim 1, characterized in that: The infrared signal receiver (206) is of model SH0038, and the infrared laser transmitter (208) is of model KDT6315A.

7. A ruler with self-calibration function according to claim 1, characterized in that: The slide plate (204) has a cross shape.

8. The ruler with self-calibration function according to claim 3, characterized in that: The top of the connecting block (303) is provided with a groove which fits with the outer wall of the pulling block (305).

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