Difunctional angle measuring instrument

Abstract

The utility model provides a difunctional angle measuring instrument, which relates to the technical field of angle measuring instruments, and comprises a first graduated scale, one side of the first graduated scale is fixedly connected with a circular shaft, the outer ring of the circular shaft is rotatably connected with a second graduated scale, one side of the second graduated scale is provided with a first sliding chute, and the second graduated scale is provided with a second sliding chute. A first sliding groove is formed in one side of the first graduated scale, a second sliding groove is formed in the other side of the second graduated scale, angle scale marks are arranged on one side of the second graduated scale, a pointer is fixedly connected to one side of the first graduated scale, and one end of the pointer penetrates through the first sliding groove and points to the angle scale marks. Therefore, the rotating angle of the arc-shaped rack driven by the rotating gear is small, so that the effect of accurately adjusting the second graduated scale is achieved, the situation that the force is too large or too small during operation can be avoided, the measurement accuracy is improved, the angle measuring instrument is convenient to use, and the use effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle measuring instruments, in particular to a dual-function angle measuring instrument. Background Art

[0002] Angle measuring instruments are tools used to measure angles and are widely used in many fields such as architecture, engineering, geography, and scientific research.

[0003] When using an angle measuring instrument to map or measure the angle of a planar object, since the first and second scales have scale lines, they themselves have the function of straight line measurement. When measuring the angle, the first scale is usually first fixed on one side of the object whose angle is to be measured. Then, the second scale is manually grasped and rotated on the circular axis of the first scale to the corresponding angle, and the pointer on the first scale is driven to slide to a certain angle in the inner wall of the first slide slot until one side of the second scale is aligned with the other side of the object whose angle is to be measured. In this way, the angle between the first and second scales can be consistent with the object whose angle is to be measured. At this time, the angle scale line pointed by one end of the pointer is the angle of the object measured. Since the second scale is manually moved, the force used to bend it may be too great or too small, making it difficult to accurately align one side of the second scale with the side of the angle to be measured, which is prone to measurement errors. This makes traditional angle measuring instruments inconvenient to operate accurately and reduces their effectiveness. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a dual-function angle measuring instrument.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a dual-function angle measuring instrument, including a first scale, a circular shaft fixedly connected to one side of the first scale, the outer ring of the circular shaft is rotatably connected to a second scale, a first slide groove is opened on one side of the second scale, angle scale lines are set on one side of the second scale, a pointer is fixedly connected to one side of the first scale, one end of the pointer passes through the first slide groove and points to the angle scale line, an adjustment device is provided between the first scale and the second scale, the adjustment device can accurately control the rotation rate of the second scale on the first scale, so as to facilitate adjustment to the required angle value and improve operating efficiency.

[0006] The effect achieved by the above components is as follows: when using an angle measuring instrument to map or measure the angle of a planar object, the first scale is usually first fixed on one side of the object whose angle needs to be measured, and then the second scale is accurately rotated to the corresponding angle on the circular axis of the first scale through the adjustment device, driving the pointer on the first scale to slide to a certain angle in the inner wall of the first slide groove until one side of the second scale is aligned with the other side of the object whose angle needs to be measured, so that the angle between the first scale and the second scale can be consistent with the object whose angle needs to be measured. At this time, the angle scale line pointed to by one end of the pointer is the angle of the object measured, thereby avoiding the situation of excessive or insufficient force during operation, improving the measurement accuracy, facilitating the use of the angle measuring instrument, and improving the use effect.

[0007] Preferably, the adjusting device includes a gear, a second slide groove is opened on one side of the second scale, an arc-shaped rack is fixedly connected to one side of the inner wall of the first slide groove, one end of the gear passes through the first slide groove and is rotatably connected to one side of the first scale, and the outer surface of the gear is meshed with one side of the arc-shaped rack.

[0008] The above components achieve the following effects: by providing an adjustment device, when measuring, the first scale is first fixed to one side of the object whose angle is to be measured, and then the gear is manually rotated. Under the meshing action of the gear and the arc-shaped rack, the second scale can be driven to slowly rotate on the outer surface of the circular shaft on one side of the first scale. Because the teeth on the gear and the arc-shaped rack are designed to be dense, the angle of rotation of the arc-shaped rack caused by the rotating gear is small, thereby achieving the effect of accurately adjusting the second scale so that one side of the scale can be accurately aligned with the other side of the object whose angle is to be measured, so that the angle between the first scale and the second scale is consistent with the object whose angle is to be measured. When the second scale is rotated, it can drive the pointer to slide to the corresponding position on the inner wall of the first slide groove, with one end pointing to the corresponding angle scale line. The angle value pointed at at this time is the angle value of the object to be measured. Through the adjustment operation of the adjustment device, it is possible to avoid the situation where too much or too little force is used during operation, thereby improving the measurement accuracy, facilitating the use of the angle measuring instrument, and improving the use effect.

[0009] Preferably, a plurality of screw blocks are fixedly connected to one side of the gear, and the plurality of screw blocks are arranged at equal distances.

[0010] The effect achieved by the above components is: by providing the twist block, the contact area of one end of the gear can be increased, making it easier to manually grasp and twist one end.

[0011] Preferably, a bearing is fixedly connected to the outer surface of one end of the gear, and the outer ring of the bearing is fixedly connected to one side of the first scale.

[0012] The effect achieved by the above components is that by providing the bearing, the rotational wear between one end of the gear and the first scale can be reduced, thereby improving the flexibility of gear rotation and the service life.

[0013] Preferably, a limiting mechanism is provided between the outer surface of the circular shaft and one side of the second scale, the limiting mechanism includes a connecting rod, one side of the connecting rod is fixedly connected to one side of the second scale, a sliding hole is provided on the outer surface of the circular shaft, one side of the connecting rod is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a screw hole block, and one end of the connecting rod and the threaded rod are both slidably connected to the inner wall of the sliding hole.

[0014] The effect achieved by the above components is: by setting a limiting mechanism, after the gear rotates to drive the arc rack and the second scale to rotate to a certain angle on the first scale and the circular shaft, the connecting rod and the threaded rod will slide in the sliding hole following the movement of the gear, and then the screw hole block can be screwed to screw it on the threaded rod to a certain position so that one side of it abuts against one side of the circular shaft, thereby limiting and fixing the second scale adjusted to the corresponding angle. In this way, when the first scale and the second scale are used for angle measurement, it is more secure, making it less likely for the second scale to shake during the measurement process, thereby avoiding the occurrence of measurement errors.

[0015] Preferably, a marking device is provided on one side of the circular shaft, and the marking device includes a marking rod, a mounting groove is provided on one side of the circular shaft, and a plurality of card slots are provided on the inner wall of the mounting groove. One end of the marking rod is inserted into the inner wall of the mounting groove, and a groove is symmetrically provided on the outer surface of one end of the marking rod. A spring is fixedly connected to one side of the inner wall of the groove, and a card block is fixedly connected to one end of the spring. The card block is slidably connected to the groove, and one end of the card block is inserted into the inner wall of the card slot.

[0016] The effect achieved by the above components is: by setting up the marking device, when using the first scale and the second scale to measure the angles of two different objects at the same position, after the second scale is rotated to a certain angle to measure the first object, the clamping block is manually pressed inward in the groove to a certain position, causing the spring to contract, and then one end of the marking rod is inserted into the installation groove, and the clamping block is released. Under the resetting action of the spring, one end of the clamping block can be driven to be inserted into the corresponding clamping slot, so that the marking rod marks the first object to be measured. In this way, after measuring the angle of the next object, it is convenient to observe the angle difference between the two objects, thereby improving the usability of the angle measuring instrument and facilitating its use.

[0017] Preferably, one end of the card block is fixedly connected with a protrusion, the size of the protrusion at one end close to the card block is larger than that at the other end, and the protrusion is inserted into the inner wall of the card slot.

[0018] The effect achieved by the above components is: by setting the protrusion, the area of one end of the card block can be reduced, and after one end of the marking rod is inserted into the installation groove, one end of the card block can be quickly aligned and inserted into the corresponding card slot.

[0019] Preferably, a telescopic rod is fixedly connected to one side of the inner wall of the groove, one end of the telescopic rod is fixedly connected to one side of the clamping block, and the outer surface of the telescopic rod is sleeved and connected to the inner wall of the spring.

[0020] The effect achieved by the above components is that by arranging the telescopic rod, the inner wall of the spring can be supported and reinforced, making it less likely to be damaged during use and increasing its service life.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] In the present invention, by providing an adjustment device, since the teeth on the gear and the arc-shaped rack are designed to be dense, the angle at which the arc-shaped rack is rotated by the rotating gear will be smaller, thereby achieving the effect of accurately adjusting the second scale, making it possible to avoid the situation where too much or too little force is used during operation, thereby improving the accuracy of measurement, facilitating the use of the angle measuring instrument, and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the first scale of the utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the middle part;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the marking rod of the utility model;

[0027] Figure 5 for Figure 4 Schematic diagram of the middle part.

[0028] Legend: 1. First scale; 2. Adjustment device; 3. Marking device; 4. Circular shaft; 5. Second scale; 6. Angle scale line; 7. First slide groove; 8. Pointer; 21. Second slide groove; 22. Arc rack; 23. Gear; 24. Twist block; 25. Bearing; 26. Limiting mechanism; 261. Slide hole; 262. Connecting rod; 263. Threaded rod; 264. Screw hole block; 31. Mounting slot; 32. Clamping slot; 33. Marking rod; 34. Groove; 35. Spring; 36. Clamping block; 37. Bump; 38. Telescopic rod. DETAILED DESCRIPTION

[0029] Example 1, as Figure 1-5 As shown, a dual-function angle measuring instrument includes a first scale 1, a circular shaft 4 is fixedly connected to one side of the first scale 1, the outer ring of the circular shaft 4 is rotatably connected to the second scale 5, a first slide groove 7 is opened on one side of the second scale 5, and an angle scale line 6 is set on one side of the second scale 5. A pointer 8 is fixedly connected to one side of the first scale 1, one end of the pointer 8 passes through the first slide groove 7 and points to the angle scale line 6, and an adjustment device 2 is provided between the first scale 1 and the second scale 5. The adjustment device 2 can accurately control the rotation rate of the second scale 5 on the first scale 1, so as to facilitate adjustment to the desired angle value and improve operating efficiency. When using an angle measuring instrument to map or measure the angle of a planar object, the first scale 1 is usually first fixed on one side of the object whose angle needs to be measured. Then, the second scale 5 is accurately rotated on the circular shaft 4 on the first scale 1 to a corresponding angle through the adjustment device 2, driving the pointer 8 on the first scale 1 to slide to a certain angle in the inner wall of the first slide groove 7 until one side of the second scale 5 is aligned with the other side of the object whose angle needs to be measured. In this way, the angle between the first scale 1 and the second scale 5 can be consistent with the object whose angle needs to be measured. At this time, the angle scale line 6 pointed to by one end of the pointer 8 is the angle of the object to be measured. This can avoid the situation where too much or too little force is used during operation, improve the measurement accuracy, facilitate the use of the angle measuring instrument, and improve the use effect.

[0030] Reference Figure 2 and Figure 3As shown, this embodiment discloses that the adjusting device 2 includes a gear 23, a second slide groove 21 is opened on one side of the second scale 5, an arc-shaped rack 22 is fixedly connected to one side of the inner wall of the first slide groove 7, one end of the gear 23 passes through the first slide groove 7 and is rotatably connected to one side of the first scale 1, and the outer surface of the gear 23 is meshed with one side of the arc-shaped rack 22. When measuring, the first scale 1 is first fixed to one side of the object whose angle needs to be measured. Then, the gear 23 is manually rotated. Under the meshing action of the gear 23 and the arc-shaped rack 22, the second scale 5 can be driven to slowly rotate on the outer surface of the circular shaft 4 on one side of the first scale 1. Because the teeth on the gear 23 and the arc-shaped rack 22 are designed to be dense, the angle of rotation of the arc-shaped rack 22 caused by rotating the gear 23 is small, thereby achieving the effect of accurately adjusting the second scale 5 so that one side of it can be accurately aligned with the other side of the object where the angle needs to be measured. The angle between the first scale 1 and the second scale 5 is consistent with the object where the angle needs to be measured. When the second scale 5 rotates, it can drive the pointer 8 to slide to the corresponding position on the inner wall of the first slide 7, with one end pointing to the corresponding angle scale line 6. The angle value pointed at at this time is the angle value of the object being measured. Through the adjustment operation of the adjustment device 2, it can avoid the situation of excessive or insufficient force during operation, thereby improving the measurement accuracy, facilitating the use of the angle measuring instrument, and improving the use effect. One side of the gear 23 is fixedly connected to several screw blocks 24, which are arranged at equal distances. The provision of the screw blocks 24 increases the contact area of one end of the gear 23, making it easier to manually grasp and twist it. A bearing 25 is fixedly connected to the outer surface of one end of the gear 23. The outer ring of the bearing 25 is fixedly connected to one side of the first scale 1. The provision of the bearing 25 reduces rotational wear between the end of the gear 23 and the first scale 1, thereby improving the rotational flexibility and service life of the gear 23.

[0031] Reference Figure 2 and Figure 3As shown, this embodiment discloses that a limiting mechanism 26 is provided between the outer surface of the circular shaft 4 and one side of the second scale 5, and the limiting mechanism 26 includes a connecting rod 262, one side of the connecting rod 262 is fixedly connected to one side of the second scale 5, and a sliding hole 261 is provided on the outer surface of the circular shaft 4, and a threaded rod 263 is fixedly connected to one side of the connecting rod 262, and the outer surface of the threaded rod 263 is threadedly connected to a screw hole block 264, and one end of the connecting rod 262 and the threaded rod 263 are both slidably connected to the inner wall of the sliding hole 261. After the gear 23 rotates to drive the arc rack 22 and the second scale 5 to rotate to a certain angle on the first scale 1 and the circular shaft 4, the connecting rod 262 and the threaded rod 263 will slide in the sliding hole 261 following the movement of the gear 23, and then the screw hole block 264 can be screwed to screw it on the threaded rod 263 to a certain position, so that one side of it abuts against one side of the circular shaft 4, so that the second scale 5 adjusted to the corresponding angle can be limited and fixed. In this way, when the first scale 1 and the second scale 5 are used for angle measurement, it is more secure, so that the second scale 5 is not easy to shake during the measurement process, thereby avoiding the occurrence of measurement errors.

[0032] Reference Figure 4 and Figure 5 As shown, this embodiment discloses that a marking device 3 is provided on one side of the circular shaft 4, and the marking device 3 includes a marking rod 33. A mounting groove 31 begins on one side of the circular shaft 4, and a plurality of card grooves 32 are provided on the inner wall of the mounting groove 31. One end of the marking rod 33 is inserted into the inner wall of the mounting groove 31, and a groove 34 is symmetrically provided on the outer surface of one end of the marking rod 33. A spring 35 is fixedly connected to one side of the inner wall of the groove 34, and a card block 36 is fixedly connected to one end of the spring 35. The card block 36 is slidably connected to the groove 34, and one end of the card block 36 is inserted into the inner wall of the card groove 32. When using the first scale 1 and the second scale 5 to measure the angles of two different objects at the same position, after rotating the second scale 5 to a certain angle to measure the first object, the clamping block 36 is manually pressed inward in the groove 34 to a certain position, causing the spring 35 to contract. Then, one end of the marking rod 33 is inserted into the mounting groove 31, and the clamping block 36 is released. Under the resetting action of the spring 35, one end of the clamping block 36 can be driven to be inserted into the corresponding clamping groove 32, so that the marking rod 33 marks the first object to be measured. In this way, after measuring the angle of the next object, it is convenient to observe the angle difference between the two objects, thereby improving the usability of the angle measuring instrument and facilitating its use.

[0033] Reference Figure 4 and Figure 5As shown, this embodiment discloses that one end of the block 36 is fixedly connected to a protrusion 37. The end of the protrusion 37 near the block 36 is larger than the other end. The protrusion 37 is inserted into the inner wall of the slot 32. By providing the protrusion 37, the area of one end of the block 36 can be reduced. After one end of the marking rod 33 is inserted into the installation slot 31, the end of the block 36 can be quickly aligned and inserted into the corresponding slot 32. A telescopic rod 38 is fixedly connected to one side of the inner wall of the groove 34. One end of the telescopic rod 38 is fixedly connected to one side of the block 36, and the outer surface of the telescopic rod 38 is sleeved and connected to the inner wall of the spring 35. By providing the telescopic rod 38, the inner wall of the spring 35 can be supported and reinforced, making it less susceptible to damage during use and extending its service life.

[0034] Working principle: by setting the adjustment device 2, when measuring, first fix the first scale 1 on one side of the object whose angle needs to be measured, and then manually rotate the gear 23. Under the meshing action of the gear 23 and the arc-shaped rack 22, the second scale 5 can be driven to rotate slowly on the outer surface of the circular shaft 4 on one side of the first scale 1. Since the teeth on the gear 23 and the arc-shaped rack 22 are designed to be dense, the angle of rotation of the arc-shaped rack 22 driven by the rotating gear 23 will be smaller, thereby achieving the effect of accurately adjusting the second scale 5 so that one side can be Accurately align with the other side of the object where the angle needs to be measured, so that the angle between the first scale 1 and the second scale 5 is consistent with the object where the angle needs to be measured. When the second scale 5 rotates, it can drive the pointer 8 to slide to the corresponding position in the inner wall of the first slide groove 7, and one end points to the corresponding angle scale line 6. The angle value pointed at at this time is the angle value of the object measured. Through the adjustment operation of the adjustment device 2, it can avoid the situation of excessive or insufficient force during operation, thereby improving the measurement accuracy, facilitating the use of the angle measuring instrument, and improving the use effect. After the gear 23 rotates to drive the arc rack 22 and the second scale 5 to rotate to a certain angle on the first scale 1 and the circular shaft 4, the connecting rod 262 and the threaded rod 263 will slide in the sliding hole 261 following the movement of the gear 23, and then the screw hole block 264 can be screwed to screw it on the threaded rod 263 to a certain position, so that one side of it abuts against one side of the circular shaft 4, so that the second scale 5 adjusted to the corresponding angle can be limited and fixed. In this way, when the first scale 1 and the second scale 5 are used for angle measurement, it is more secure, so that the second scale 5 is not easy to shake during the measurement process, thereby avoiding the occurrence of measurement errors.

[0035] When using the first scale 1 and the second scale 5 to measure the angles of two different objects at the same position, after rotating the second scale 5 to a certain angle to measure the first object, the clamping block 36 is manually pressed inward in the groove 34 to a certain position, causing the spring 35 to contract. Then, one end of the marking rod 33 is inserted into the mounting groove 31, and the clamping block 36 is released. Under the resetting action of the spring 35, one end of the clamping block 36 can be driven to be inserted into the corresponding clamping groove 32, so that the marking rod 33 marks the first object to be measured. In this way, after measuring the angle of the next object, it is convenient to observe the angle difference between the two objects, thereby improving the usability of the angle measuring instrument and facilitating its use.

Claims

1. A dual-function angle measuring instrument, comprising a first scale (1), characterized in that: One side of the first scale (1) is fixedly connected to a circular shaft (4), the outer ring of the circular shaft (4) is rotatably connected to a second scale (5), one side of the second scale (5) is provided with a first sliding groove (7), one side of the second scale (5) is provided with an angle scale line (6), one side of the first scale (1) is fixedly connected to a pointer (8), one end of the pointer (8) passes through the first sliding groove (7) and points to the angle scale line (6), an adjustment device (2) is provided between the first scale (1) and the second scale (5), and the adjustment device (2) can accurately control the rotation rate of the second scale (5) on the first scale (1), so as to facilitate adjustment to a desired angle value and improve operation efficiency.

2. The dual-function angle measuring instrument according to claim 1, characterized in that: The adjusting device (2) includes a gear (23), a second slide groove (21) is provided on one side of the second scale (5), an arc-shaped rack (22) is fixedly connected to one side of the inner wall of the first slide groove (7), one end of the gear (23) passes through the first slide groove (7) and is rotatably connected to one side of the first scale (1), and the outer surface of the gear (23) is meshed with one side of the arc-shaped rack (22).

3. The dual-function angle measuring instrument according to claim 2, characterized in that: One side of the gear (23) is fixedly connected with a plurality of screw blocks (24), and the plurality of screw blocks (24) are arranged at equal distances.

4. The dual-function angle measuring instrument according to claim 2, characterized in that: A bearing (25) is fixedly connected to the outer surface of one end of the gear (23), and the outer ring of the bearing (25) is fixedly connected to one side of the first scale (1).

5. The dual-function angle measuring instrument according to claim 2, characterized in that: A limiting mechanism (26) is provided between the outer surface of the circular shaft (4) and one side of the second scale (5), the limiting mechanism (26) comprising a connecting rod (262), one side of the connecting rod (262) being fixedly connected to one side of the second scale (5), a sliding hole (261) being provided on the outer surface of the circular shaft (4), a threaded rod (263) being fixedly connected to one side of the connecting rod (262), a screw hole block (264) being threadedly connected to the outer surface of the threaded rod (263), and one end of each of the connecting rod (262) and the threaded rod (263) being slidably connected to the inner wall of the sliding hole (261).

6. The dual-function angle measuring instrument according to claim 1, characterized in that: A marking device (3) is provided on one side of the circular shaft (4), and the marking device (3) includes a marking rod (33). A mounting groove (31) is provided on one side of the circular shaft (4), and a plurality of clamping grooves (32) are provided on the inner wall of the mounting groove (31). One end of the marking rod (33) is inserted into the inner wall of the mounting groove (31), and a groove (34) is symmetrically provided on the outer surface of one end of the marking rod (33). A spring (35) is fixedly connected to one side of the inner wall of the groove (34), and a clamping block (36) is fixedly connected to one end of the spring (35). The clamping block (36) is slidably connected to the groove (34), and one end of the clamping block (36) is inserted into the inner wall of the clamping groove (32).

7. The dual-function angle measuring instrument according to claim 6, characterized in that: One end of the clamping block (36) is fixedly connected with a protrusion (37), the size of the protrusion (37) at one end close to the clamping block (36) is larger than the size of the other end, and the protrusion (37) is inserted into the inner wall of the clamping slot (32).

8. The dual-function angle measuring instrument according to claim 6, characterized in that: A telescopic rod (38) is fixedly connected to one side of the inner wall of the groove (34), one end of the telescopic rod (38) is fixedly connected to one side of the clamping block (36), and the outer surface of the telescopic rod (38) is sleeved and connected to the inner wall of the spring (35).

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