Dial type digital display compasses
By using a cross-shaped dial and pointer design, combined with a transmission component and spiral protrusions, the problem of unclear indication in traditional dial-type digital compasses is solved, achieving a more accurate and intuitive numerical display.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DELI GROUP CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-29
AI Technical Summary
The pointer indication of a traditional dial-type digital compass is not clear enough, which can easily lead to errors when reading the value, making it difficult and inaccurate.
The design incorporates a cross-shaped dial and pointer, with the pointer rotating to cover the dial to indicate values. The pointer is driven to rotate via a transmission component. The design also incorporates spiral protrusions and height differences to ensure a tight fit and stable rotation between the pointer and the dial.
It improves the accuracy and reliability of readings, reduces visual errors, and enables more intuitive and precise numerical display.
Smart Images
Figure CN224296899U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of stationery technology, and more specifically to a dial-type digital compass. Background Technology
[0002] A compass is a traditional drafting tool, primarily used for drawing or measuring circles. It typically consists of a compass base and two legs. One leg has a needle tip for positioning, and the other has a pen tip for drawing. The two legs are connected by a hinge at the top. The radius of the circle is determined by adjusting the distance between the legs. Using the needle tip as the center, rotating the compass base allows the pen tip to draw an arc along the radius. However, traditional compasses cannot directly read the value when measuring the diameter or radius of a known circle, requiring the use of other measuring tools. The dial-type digital compass improves upon the traditional compass by adding a dial, pointer, and transmission mechanism to the frame. This allows for direct measurement and real-time display of the radius or diameter of the circle. It primarily utilizes a gear transmission mechanism; adjusting the distance between the two legs rotates the gear, moving the pointer on the dial and displaying the value directly on the scale. This significantly improves drawing efficiency and accuracy, making the compass's measurement function more convenient and practical.
[0003] For example, utility model patent CN201287553Y discloses a compass, including two legs and a handle, all connected by a pin. It also includes a dial rotatably mounted on the pin and a pointer fixed to it. The dial is fixedly connected to one of the legs, and the scale readings on the dial are set according to a scale circle and a circle with a radius equal to the length of the leg, based on a proportional principle. This technical solution simplifies the drawing and measurement process and improves work efficiency by directly reading the distance between the ends of the two legs using a dial and pointer on the compass body, eliminating the need for a ruler. However, this type of compass with a dial suffers from problems such as unclear and inaccurate pointer indication, poor indicativeness, and difficulty in aligning the pointer with the scale lines, leading to reading difficulties and inaccuracies. Summary of the Invention
[0004] The technical problem to be solved by this application is to provide a dial-type digital compass, which is equipped with intersecting scales and pointers. The value is indicated by rotating the pointer to cover the scales, which provides good indicativeness and improves the accuracy of reading.
[0005] This application provides a dial-type digital compass, including a compass base with a first leg and a second leg rotatably mounted on it. A scale and a pointer are mounted on the compass base, and the scale and pointer are rotatably connected. The pointer is connected to the first leg and / or the second leg via a transmission assembly. The pointer has a radially extending first slit that divides the pointer into adjacent first and second ends. A pointer is located at the first end. The scale has a second slit for the pointer to pass through and interlock with the pointer. When the first leg and the second leg rotate relative to each other, the transmission assembly drives the pointer to rotate relative to the scale, and the pointer adjusts the coverage area of the pointer on the scale by rotating.
[0006] In this technical solution, the first and second legs achieve the drawing function through rotational engagement. The dial displays numerical values, which are at least one of the compass radius, diameter, and the opening angle of the first and second legs. The pointer indicates the value on the dial. The pointer is connected to at least one of the first and second legs via a transmission assembly. Relative rotation of the first and second legs drives the pointer to rotate relative to the dial via the transmission assembly, thus displaying the value. A first gap is provided on the pointer, forming adjacent first and second ends. A second gap is provided on the dial. Through the engagement of the first and second gaps, the pointer and dial are arranged in a cross-shaped state. The pointer rotates to cover the dial. The greater the distance between the first and second feet, the larger the area of the dial covered by the pointer's rotation. Conversely, the smaller the distance between the first and second feet, the smaller the area covered by the pointer's rotation. This overlapping indication method makes the numerical reading more prominent and intuitive, reducing reading errors. When the first and second feet rotate relative to each other, the distance between them changes. This change in distance is transmitted to the pointer through a transmission component, causing the pointer to rotate relative to the dial. The pointer adjusts its coverage area on the dial by rotating, thus displaying the numerical value. The cross-shaped design of the pointer and dial makes the numerical indication clearer, allowing users to read the value more intuitively and reducing inaccurate readings caused by visual errors, achieving precise numerical indication.
[0007] As an improvement, the second gap divides the dial into adjacent third and fourth ends, with the third and fourth ends having a first height difference to accommodate the pointer dial. In this technical solution, the second gap creates adjacent third and fourth ends on the dial. By setting a first height difference between the third and fourth ends, the first end of the pointer dial can pass through the second gap between the third and fourth ends and insert into the dial. This allows the pointer dial to tightly cover the dial during rotation, ensuring the pointer accurately points to the scale. The tight insertion of the pointer dial into the dial reduces the gap between the pointer and the dial, improving reliability and reading accuracy.
[0008] As an improvement, the compass holder is provided with a first protrusion adapted to the dial. The first protrusion abuts against the third end to create a first height difference between the third and fourth ends. In this technical solution, the main function of the first protrusion is to create a height difference between the third and fourth ends, i.e., the first height difference, by abutting against the third end. This first height difference provides space for the first end of the pointer to insert into the dial, ensuring that the pointer can smoothly pass through the second gap and be inserted into the dial. The design of the first protrusion allows the pointer to be better embedded in the structure of the dial, resulting in a more compact overall design, ingenious structure, and improved reliability.
[0009] As an improvement, the first protrusion is a spiral protrusion structure, and the surface height of the first protrusion spirals down from the third end to the fourth end. The end of the first protrusion that abuts the third end is the highest abutment end. In this technical solution, the first protrusion is designed as a spiral structure, and the surface height of the first protrusion spirals down between the third and fourth ends, gradually decreasing to form a spiral ramp. The end of the first protrusion that abuts the third end is the highest point of the entire spiral structure, called the highest abutment end. The highest abutment end of the first protrusion abuts against the third end of the dial, ensuring that a first height difference is formed between the third and fourth ends. The gradually decreasing surface height of the spiral structure allows the dial to smoothly pass through the second gap during rotation, reducing jamming or instability caused by sudden height changes. This allows the dial to be better embedded in the structure of the dial, enhancing the reliability and stability of the entire structure.
[0010] As an improvement, the diameter of the dial is larger than that of the pointer dial, and the dial has an annular outer edge that avoids obstructing the pointer dial. The dial is fixedly connected to the first protrusion through the annular outer edge. In this technical solution, setting the diameter of the dial to be larger than that of the pointer dial ensures that the pointer dial remains within the range of the dial during rotation, preventing the pointer dial from obstructing the scale values and ensuring that the pointer can accurately point to the scale, thus improving the accuracy of the reading. Setting the dial to be fixedly connected to the first protrusion through the annular outer edge allows the dial to be fixedly installed in the compass holder, forming a stable structure between the dial and the first protrusion, ensuring the stability of the dial during use. The design of the annular outer edge prevents the pointer dial from interfering with the dial during rotation, ensuring that the pointer dial can rotate smoothly. The first protrusion not only creates a height difference but also plays a positioning role in the installation of the pointer dial, ensuring a tight and stable fit between the pointer dial and the dial.
[0011] As an improvement, the third end is provided with a protrusion extending toward the second gap, which is positioned on the dial to avoid obstruction from the pointer. In this technical solution, the protrusion extending toward the second gap is designed to spatially match the movement path of the dial. The positioning and shape of the protrusion ensure that the pointer does not interfere with it during rotation, and that the protrusion does not obstruct the pointer's indication, allowing the pointer to rotate freely and clearly indicate the scale value. The protrusion also positions the portion of the dial that is covered by the rotating dial, ensuring a stable position for the dial during rotation. Furthermore, the dial can be tightly inserted into the dial, reducing the gap between the pointer and the dial, and improving the accuracy and stability of the reading.
[0012] As an improvement, the third end is provided with a second protrusion, and the fourth end is provided with a third protrusion. The second and third protrusions are opposite to each other and spaced apart to cooperate in clamping the pointer dial. In this technical solution, the design of the second and third protrusions is used to clamp the pointer dial, ensuring that the pointer dial can maintain a stable position during rotation, avoiding displacement or wobbling of the pointer dial during rotation, and ensuring that the pointer dial is stably clamped between the two during rotation. This design ensures a tighter fit between the pointer dial and the scale, reduces structural loosening caused by external force or improper operation, and improves the accuracy of reading.
[0013] As an improvement, the compass holder is provided with a fourth protrusion adapted to the pointer dial. The fourth protrusion abuts against the first end to create a second height difference between the first and second ends. In this technical solution, the fourth protrusion abuts against the first end of the pointer dial. Through this abutment, a height difference, namely the second height difference, is formed between the first and second ends of the pointer dial. This second height difference provides the necessary space for the movement of the pointer dial, ensuring that the pointer dial can smoothly pass through the second gap and cover the scale during rotation. The second height difference also provides the necessary space for the movement of the pointer dial, preventing interference between the pointer dial and the scale during rotation and ensuring that the pointer can accurately point to the scale.
[0014] As an improvement, an adjustment disc is installed on the compass base, and both the scale and pointer dials are mounted on the adjustment disc. A transparent window is connected to the adjustment disc, and both the scale and pointer dials are located between the adjustment disc and the transparent window. In this technical solution, the adjustment disc, mounted on the compass base, provides a stable mounting platform for the scale and pointer dials, allowing them to be accurately installed on the compass base and ensuring their stability during use. The transparent window, mounted on the adjustment disc above the scale and pointer dials, protects them from external factors such as dust and liquids, ensuring their clear visibility and extending the compass's service life.
[0015] As an improvement, the surface of the dial is provided with a highlighting layer. In this technical solution, the main function of the highlighting layer is to enhance the visual effect of the dial, making it more prominent and easily identifiable on the scale. By adding a highlighting layer to the dial surface, the visibility of the dial can be significantly improved, especially in environments with insufficient light or complex backgrounds, ensuring that users can quickly and accurately read values. The highlighting layer can be applied to the dial surface by spraying, brushing, or dipping in paint, or it can be directly affixed to the dial surface with a sticker. By enhancing the contrast and brightness of the dial, the dial indications become clearer and more precise, ensuring that the dial remains clearly visible under different lighting conditions, thus improving the visual effect of reading. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a dial-type digital display compass according to this application.
[0017] Figure 2 This is an exploded view of the structure of a dial-type digital display compass according to this application.
[0018] Figure 3 This is a three-dimensional structural diagram of the pointer disk in this application.
[0019] Figure 4 This is a three-dimensional structural diagram of the dial in this application.
[0020] Figure 5 This is a three-dimensional structural diagram of the adjustment disc in this application.
[0021] Figure 6 This is a schematic diagram showing the forward view direction of the pointer and dial in this application.
[0022] Figure 7 This is a schematic diagram showing the rear view direction of the pointer and dial in this application.
[0023] The figure shows: 1. Compass base; 11. First protrusion; 111. Highest contact end; 12. Fourth protrusion; 13. Adjustment disc; 14. Transparent window; 2. First leg; 3. Second leg; 4. Dial; 41. Second slit; 42. Third end; 421. Protrusion; 422. Second protrusion; 43. Fourth end; 431. Third protrusion; 44. Annular outer edge; 5. Pointer dial; 51. First slit; 52. First end; 521. Pointer; 53. Second end; 6. Transmission assembly. Detailed Implementation
[0024] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.
[0025] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.
[0026] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0027] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] like Figures 1 to 7 As shown, this application discloses a dial-type digital compass, including a compass base 1, on which a first leg 2 and a second leg 3 are rotatably mounted. A scale 4 and a pointer 52 are mounted on the compass base 1, and the scale 4 and the pointer 52 are rotatably connected. The pointer 52 is connected to the first leg 2 and / or the second leg 3 through a transmission assembly 6. The first leg 2 and the second leg 3 achieve a drawing function through rotational engagement. The scale 4 is used to display values, and the measured values are at least one of the compass radius, diameter, and the opening angle of the first leg 2 and the second leg 3. The pointer 52 is used to indicate values on the scale 4. The pointer 52 is connected to at least one of the first leg 2 and the second leg 3 through the transmission assembly 6. The relative rotation of the first leg 2 and the second leg 3 can drive the pointer 52 to rotate relative to the scale 4 through the transmission assembly 6, thereby realizing the display of values. In this application, the transmission assembly 6 includes, but is not limited to, a gear transmission assembly 6.
[0029] like Figure 3 , Figure 4 and Figure 6As shown, the pointer dial 52 has a first slit 51 extending radially, which divides the pointer dial 52 into adjacent first ends 52 and second ends 53. The first end 52 is provided with a pointer 521. The scale dial 4 has a second slit 41 for the pointer 521 to pass through, so as to cross and cooperate with the pointer dial 52. The first slit 51 on the pointer dial 52 makes the first end 52 and the second end 53 on the pointer dial 52. The second slit 41 on the scale dial 4, through the cooperation of the first slit 51 and the second slit 41, makes the pointer dial 52 and the scale dial 4 cross each other. The pointer dial 52 covers the scale dial 4 by rotating. The greater the distance between the first support 2 and the second support 3, the larger the area of the pointer dial 52 covering the scale dial 4. The smaller the distance between the first support 2 and the second support 3, the smaller the area of the pointer dial 52 covering the scale dial 4. The covering indication method makes the reading of the value more obvious and intuitive, and reduces the reading error.
[0030] When the first foot 2 and the second foot 3 rotate relative to each other, the distance between the first foot 2 and the second foot 3 changes. This distance change is transmitted to the pointer dial 52 through the transmission component 6, causing the pointer dial 52 to rotate relative to the scale dial 4. The pointer dial 52 adjusts its coverage area on the scale dial 4 by rotating, thereby realizing the display of values. The cross-shaped design of the pointer dial 52 and the scale dial 4 makes the numerical indication clearer, and users can read the values more intuitively, reducing inaccurate readings caused by visual errors and achieving accurate numerical indication.
[0031] More specifically, such as Figure 4 As shown, the second gap 41 divides the dial 4 into adjacent third ends 42 and fourth ends 43. The third ends 42 and fourth ends 43 have a first height difference to accommodate the pointer dial 52. The second gap 41 makes the adjacent third ends 42 and fourth ends 43 form on the dial 4. By setting the first height difference between the third ends 42 and fourth ends 43, the first height difference is designed to allow the first end 52 of the pointer dial 52 to pass through the second gap 41 between the third ends 42 and fourth ends 43 and insert into the dial 4. This allows the pointer dial 52 to tightly cover the dial 4 during rotation, ensuring that the pointer 521 can accurately point to the scale. The pointer dial 52 can be tightly inserted into the dial 4, reducing the gap between the pointer 521 and the dial 4, and improving the reliability and accuracy of reading.
[0032] More specifically, such as Figures 3 to 6As shown, the compass base 1 is provided with a first protrusion 11 that fits the dial 4. The first protrusion 11 abuts against the third end 42 to form a first height difference between the third end 42 and the fourth end 43. The main function of the first protrusion 11 is to form a height difference between the third end 42 and the fourth end 43 by abutting against the third end 42. The first height difference provides space for the first end 52 of the pointer 52 to be inserted into the dial 4, ensuring that the pointer 521 can pass smoothly through the second gap 41 and be inserted into the dial 4. The design of the first protrusion 11 allows the pointer 52 to be better embedded in the structure of the dial 4. The overall design is more compact and the structure is ingenious, which improves the reliability of use.
[0033] More specifically, such as Figure 5 As shown, the first protrusion 11 is a spiral protrusion structure. The surface height of the first protrusion 11 spirals down from the third end 42 towards the fourth end 43. The end of the first protrusion 11 that abuts against the third end 42 is the highest abutment end 111. The first protrusion 11 is designed as a spiral structure, and the surface height of the first protrusion 11 spirals down between the third end 42 and the fourth end 43. The surface height of the first protrusion 11 gradually decreases, forming a spiral ramp. The end of the first protrusion 11 that abuts against the third end 42 is the highest point of the entire spiral structure, called the highest abutment end 111. The highest abutment end 111 of the first protrusion 11 abuts against the third end 42 of the dial 4, ensuring that a first height difference is formed between the third end 42 and the fourth end 43. The surface height of the spiral structure gradually decreases, so that the pointer dial 52 can smoothly pass through the second gap 41 during rotation, reducing the jamming or instability caused by sudden height changes. This allows the pointer dial 52 to be better embedded in the structure of the dial 4, enhancing the reliability and stability of the entire structure.
[0034] More specifically, such as Figure 2 , Figure 5 and Figure 7As shown, the diameter of the dial 4 is larger than the diameter of the pointer dial 52. The dial 4 has an annular outer edge 44 that avoids the pointer dial 52. The dial 4 is fixedly connected to the first protrusion 11 through the annular outer edge 44. Setting the diameter of the dial 4 to be larger than the diameter of the pointer dial 52 ensures that the pointer dial 52 is always within the range of the dial 4 during rotation, preventing the pointer dial 52 from obstructing the scale value of the dial 4, ensuring that the pointer 521 can accurately point to the scale, and improving the accuracy of the reading. The dial 4 is set to have an annular outer edge 44. 4. The first protrusion 11 is fixedly connected, so that the dial 4 is fixedly installed in the compass base 1. A stable structure is formed between the dial 4 and the first protrusion 11 to ensure the stability of the dial 4 during use. The design of the annular outer edge 44 ensures that the pointer 52 will not interfere with the dial 4 during rotation, ensuring that the pointer 52 can rotate smoothly. The first protrusion 11 is not only used to form a height difference, but also plays a positioning role in the installation of the pointer 52, ensuring that the fit between the pointer 52 and the dial 4 is tight and stable.
[0035] More specifically, such as Figure 4 and Figure 6 As shown, the third end 42 is provided with a protrusion 421 extending toward the second gap 41. The protrusion 421 is positioned on the scale 4 to avoid interfering with the pointer 521. The protrusion 421 is positioned to extend toward the second gap 41 so that the protrusion 421 matches the movement path of the pointer 52 in space. The positioning and shape design of the protrusion 421 and the pointer 521 avoid interfering with each other during rotation. The protrusion 421 will not obstruct the pointer 521's indication, ensuring that the pointer 521 can rotate freely and clearly indicate the scale value. The protrusion 421 can position the part of the pointer 52 that covers the scale 4 during rotation, so that the pointer 52 can maintain a stable position during rotation. The pointer 52 can be tightly inserted into the scale 4, reducing the gap between the pointer 521 and the scale 4, and improving the accuracy and stability of the reading.
[0036] More specifically, such as Figure 4 and Figure 6 As shown, the third end 42 has a second protrusion 422, and the fourth end 43 has a third protrusion 431. The second protrusion 422 and the third protrusion 431 are opposite to each other and spaced apart to clamp the pointer dial 52. The design of the second protrusion 422 and the third protrusion 431 is to clamp the pointer dial 52, ensuring that the pointer dial 52 can maintain a stable position during rotation, avoiding displacement or shaking of the pointer dial 52 during rotation, and ensuring that the pointer dial 52 can be stably clamped between the two during rotation. This design ensures a tighter fit between the pointer dial 52 and the scale dial 4, reduces structural loosening caused by external force or improper operation, and improves the accuracy of reading.
[0037] More specifically, such as Figure 2 , Figure 3 and Figure 5 As shown, the compass base 1 is provided with a fourth protrusion 12 that is adapted to the pointer dial 52. The fourth protrusion 12 abuts against the first end 52 to form a second height difference between the first end 52 and the second end 53. The fourth protrusion 12 abuts against the first end 52 of the pointer dial 52. Through this abutting action, a height difference is formed between the first end 52 and the second end 53 of the pointer dial 52, namely the second height difference. The second height difference provides the necessary space for the movement of the pointer dial 52, ensuring that the pointer dial 52 can smoothly pass through the second gap 41 and cover the scale dial 4 during rotation. The second height difference provides the necessary space for the movement of the pointer dial 52, so that the pointer dial 52 will not interfere with the scale dial 4 during rotation, ensuring that the pointer 521 can accurately point to the scale.
[0038] More specifically, such as Figure 2 As shown, an adjustment plate 13 is installed on the compass base 1. The scale dial 4 and pointer dial 52 are both installed on the adjustment plate 13. The adjustment plate 13 provides a stable mounting platform for the scale dial 4 and pointer dial 52, allowing them to be accurately installed on the compass base 1 and ensuring their stability during use. The adjustment plate 13 is connected to a transparent window 14. The scale dial 4 and pointer dial 52 are located between the adjustment plate 13 and the transparent window 14. The transparent window 14 is installed on the adjustment plate 13 and is located above the scale dial 4 and pointer dial 52. The transparent window 14 is used to protect the scale dial 4 and pointer dial 52 from external factors such as dust and liquids, ensuring that the scale dial 4 and pointer dial 52 are clearly visible and extending the service life of the compass.
[0039] More specifically, the surface of the pointer dial 52 is provided with a highlighting layer. The main function of the highlighting layer is to enhance the visual effect of the pointer dial 52, making it more prominent and easier to identify on the dial 4. By adding a highlighting layer to the surface of the pointer dial 52, the visibility of the pointer dial 52 can be significantly improved, especially in environments with insufficient light or complex backgrounds, ensuring that users can quickly and accurately read the values. The highlighting layer can be applied to the surface of the pointer dial 52 by spraying, brushing, or dipping in paint, or it can be directly applied to the surface of the pointer dial 52 with a sticker. By enhancing the contrast and brightness of the pointer dial 52, the indication of the pointer dial 52 becomes clearer and more distinct, ensuring that the pointer dial 52 remains clearly visible under different lighting conditions, thus improving the visual effect of reading.
[0040] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.
Claims
1. A dial-type digital compass, comprising a compass base (1), wherein a first leg (2) and a second leg (3) are rotatably mounted on the compass base (1), characterized in that, The compass base (1) is equipped with a scale (4) and a pointer (5). The scale (4) and the pointer (5) are rotatably connected. The pointer (5) is connected to the first support (2) and / or the second support (3) through a transmission assembly (6). The pointer (5) has a first slit (51) extending radially. The first slit (51) divides the pointer (5) into an adjacent first end (52) and a second end (53). The first end (52) is equipped with a pointer (521). The scale (4) has a second slit (41) through which the pointer (521) passes to cross-fit with the pointer (5). When the first support (2) and the second support (3) rotate relative to each other, the transmission assembly (6) drives the pointer (5) to rotate relative to the scale (4). The pointer (521) rotates to adjust the coverage area of the pointer (5) on the scale (4).
2. A dial-type digital display compass according to claim 1, characterized in that, The second slit (41) divides the dial (4) into adjacent third ends (42) and fourth ends (43), the third ends (42) and fourth ends (43) having a first height difference to accommodate the pointer dial (5).
3. A dial-type digital display compass according to claim 2, characterized in that, The compass base (1) is provided with a first protrusion (11) adapted to the dial (4), and the first protrusion (11) abuts against the third end (42) to form a first height difference between the third end (42) and the fourth end (43).
4. A dial-type digital display compass according to claim 3, characterized in that, The first protrusion (11) is a spiral protrusion structure. The surface height of the first protrusion (11) spirals down from the third end (42) toward the fourth end (43). The end of the first protrusion (11) that abuts against the third end (42) is the highest abutting end (111).
5. A dial-type digital display compass according to claim 4, characterized in that, The diameter of the dial (4) is larger than the diameter of the pointer dial (5). The dial (4) is provided with an annular outer edge (44) to avoid the pointer dial (5). The dial (4) is fixedly connected to the first protrusion (11) through the annular outer edge (44).
6. A dial-type digital display compass according to claim 2, characterized in that, The third end (42) is provided with a protrusion (421) extending toward the second gap (41), and the protrusion (421) is positioned on the dial (4) to avoid the pointer (521).
7. A dial-type digital display compass according to claim 2 or 6, characterized in that, The third end (42) is provided with a second protrusion (422), and the fourth end (43) is provided with a third protrusion (431). The second protrusion (422) and the third protrusion (431) are opposite to each other and spaced apart to cooperate in clamping the pointer disk (5).
8. A dial-type digital display compass according to claim 1 or 2, characterized in that, The compass base (1) is provided with a fourth protrusion (12) that is adapted to the pointer disk (5). The fourth protrusion (12) abuts against the first end (52) to form a second height difference between the first end (52) and the second end (53).
9. A dial-type digital display compass according to claim 1, characterized in that, An adjustment plate (13) is installed on the compass base (1), and the scale plate (4) and pointer plate (5) are both installed on the adjustment plate (13); the adjustment plate (13) is connected to a transparent window (14), and the scale plate (4) and pointer plate (5) are both located between the adjustment plate (13) and the transparent window (14).
10. A dial-type digital display compass according to claim 1, characterized in that, The surface of the pointer dial (5) is provided with a conspicuous layer.