Mechanical heeling meter

By using the design of the transmission mechanism and the pendulum driving assembly in the inclination angle measurement device, using the transmission ratio and hammer driving principle, combined with transparent windows and adjustment screws, the problems of low inclination angle measurement accuracy and non-compact structure in the prior art are solved. Achieve high-precision, stable and convenient inclination measurement.

CN222179790UActive Publication Date: 2024-12-17JIUJIANG BRANCH OF THE 707 RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD
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Patent Information

Application Number
CN202421063872.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2024-12-17
Estimated Expiration
2034-05-16

AI Technical Summary

Technical Problem

The existing inclination angle measurement devices are difficult to achieve high-precision measurement on ships, and the structure is not small and compact, and are easily affected by oscillation and wind flow, resulting in unstable measurements.

Method used

A mechanical tilt meter is designed, using a transmission mechanism and a pendulum driving assembly, which improves the measurement accuracy through the transmission ratio of the driving wheel and the driven wheel, and uses gravity to drive the driving wheel to rotate through the hammer body and the connecting member to drive the driven wheel and drive the driven wheel and The pointer rotates, combining transparent windows and adjustment screws to achieve compact and stable structure.

Benefits of technology

It improves the accuracy and stability of inclination angle measurement, adapts to ship oscillation and airflow interference, has a compact structure, is convenient to install, and can perform zero adjustments to reduce measurement errors.

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Abstract

The utility model discloses a mechanical heeling meter, which relates to the technical field of inclination angle measuring devices and comprises a meter shell, an observation port arranged at the front end of the meter shell and a transmission mechanism, and the transmission mechanism comprises a driving wheel and a driven wheel which are arranged in the meter shell; the driving wheel is in transmission connection with the driven wheel; the transmission ratio of the driving wheel to the driven wheel is not less than 1; the pendulum driving assembly comprises a connecting piece and a hammer body; the hammer body is positioned on one radial side of the driving wheel; the hammer body is in transmission connection with the driving wheel through a connecting piece and can drive the driving wheel to rotate relative to the meter shell through the gravity distance effect. An indication assembly; the indicating assembly comprises a dial and a pointer matched with the dial to indicate the inclination angle. The dial and the pointer are arranged at the front part of the meter shell and correspond to the observation opening; the pointer is coaxially and fixedly installed on the driven wheel. The inclination angle measuring device can improve inclination angle measuring precision and has the advantages of being compact and small in structure and convenient to install.
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Description

Technical Field

[0001] The utility model relates to the technical field of inclination measuring devices, in particular to a mechanical inclination meter. Background Art

[0002] The ship's heel angle is generally measured using the principle of vertical gravity and a pendulum suspended by a suspension line. To improve measurement accuracy, the length of the suspension line needs to be increased. However, in reality, a too long suspension line takes up a lot of space on a moving ship and is easily affected by the ship's vibration or wind current. It is difficult to stabilize the swing, which brings great inconvenience to the measurement.

[0003] A Chinese patent (authorization publication number CN 104044710 B, 2016.06.08) discloses a portable multi-purpose inclinometer, which specifically discloses measuring the heel and pitch angles of a ship through a pendulum line and a dial of a base plate and a transverse plate; the length of the pendulum line in its technical solution is a key factor determining its measurement accuracy, and it is impossible to achieve a compact structure while ensuring high measurement accuracy, and the pendulum line is also difficult to adapt to the influence of ship vibration or wind flow on measurement.

[0004] In view of the above problems, how to provide a mechanical heel meter that can improve the inclination measurement accuracy and has the characteristics of compact structure and easy installation is an issue that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model proposes a mechanical inclination meter, aiming to solve the technical problems of low inclination angle measurement accuracy and non-compact structure of the above-mentioned traditional inclinometers.

[0006] The utility model provides a mechanical heel meter, comprising:

[0007] A watch case, wherein the front end of the watch case is provided with an observation port,

[0008] A transmission mechanism, the transmission mechanism comprising a driving wheel and a driven wheel arranged inside the watch case; the driving wheel is in transmission connection with the driven wheel; the transmission ratio between the driving wheel and the driven wheel is not less than 1;

[0009] A pendulum driving assembly, the pendulum driving assembly comprising a connecting piece and a hammer body; the hammer body is located on a radial side of the driving wheel; the hammer body is connected to the driving wheel through the connecting piece, and can drive the driving wheel to rotate relative to the watch case through the action of gravity;

[0010] Indicator assembly; the indicator assembly includes a dial and a pointer that cooperates with the dial to indicate the inclination angle; the dial and the pointer are both arranged at the front of the case and correspond to the observation port; the pointer is coaxially fixedly mounted on the driven wheel.

[0011] The utility model discloses a mechanical heel gauge. According to the pendulum principle, under the action of gravity, the hammer provides torque through the connecting piece to drive the driving wheel to rotate. When in use, the case can be fixed on the ship so that the axis of the driving wheel is parallel to the length direction of the ship. When the ship tilts laterally, the case also tilts. Under the action of the weight of the hammer itself, the connecting piece can provide torque to drive the driving wheel to rotate relative to the case. The rotating driving wheel will drive the driven wheel to rotate, and then the driven wheel drives the pointer to rotate. The pointer cooperates with the dial to indicate the inclination angle. The transmission ratio can be reasonably designed according to the accuracy of the inclination angle measurement. The larger the transmission ratio between the driving wheel and the driven wheel, the larger the driven wheel rotation angle corresponding to the same driving wheel rotation angle, that is, the larger the pointer rotation angle, the higher the sensitivity, thereby achieving improved measurement accuracy. The observation port is used to observe the pointer indication scale. The length of the connecting piece of the utility model can be shortened, and the measurement accuracy can be ensured by reasonably increasing the transmission ratio, and the overall structure can be more compact.

[0012] As a further improvement of the above technical solution, the watch case includes a front cover, a rear case, a support ring and a mounting plate; the front end of the rear case is open, and the support ring is arranged at the front end of the rear case and corresponds to the opening; the dial is mounted on the support ring; the front cover is annular, and its annular inner hole is the observation port, the front cover is adapted to be buckled on the front part of the rear case and press the support ring against the front end of the rear case; the mounting plate is fixed inside the rear case, and the driving wheel and the driven wheel are both rotatably connected to the mounting plate.

[0013] The beneficial effects of the above technical solution are: the watch case plays a protective role; the dial is installed on the support ring, and its posture can be adjusted by rotating the support ring; the front cover plays a role in pressing and fixing the support ring to prevent the dial from shifting relative to the watch case.

[0014] As a further improvement of the above technical solution, the watch case further comprises a transparent window, which is arranged in the front cover corresponding to the side of the support ring away from the rear cover and covers the observation port.

[0015] The beneficial effect of the above technical solution is that the transparent window is used to observe the inclination scale value indicated by the pointer, and also plays the role of sealing the case to protect the various components inside the inclination meter and prevent the influence of wind.

[0016] As a further improvement of the above technical solution, the front cover is rotatably connected to the front part of the rear shell, and the rotation of the front cover can frictionally drive the support ring to rotate axially relative to the rear shell to adjust the indication value of the pointer on the dial; the peripheral side wall of the front cover is threadedly connected with an adjustment screw that can be fixed on the corresponding outer peripheral wall of the rear shell.

[0017] The beneficial effects of the above technical solution are: the adjusting screw can fasten the front cover to the rear shell; when adjusting the inclination angle to zero position, the adjusting screw can be loosened, and the front cover can be rotated, and the support ring can be driven to rotate through the contact friction force of the front cover on the support ring, so as to adjust the rotation of the dial relative to the pointer, making the adjustment of the inclination angle zero position more convenient.

[0018] As a further improvement of the above technical solution, a avoidance hole is opened in the middle of the dial, the pointer is located in the avoidance hole and is coaxial and coplanar with the dial; an inclination scale line is set on the dial surface corresponding to the pointer tip.

[0019] The beneficial effect of the above technical solution is that the pointer and the dial are arranged coaxially and in the same plane, which can avoid measurement errors caused by reading parallax.

[0020] As a further improvement of the above technical solution, the pointer has two indicating needle tips arranged opposite to each other; and the inclination scale lines are provided on the dial corresponding to the two indicating needle tips.

[0021] The beneficial effect of the above technical solution is that two groups of inclination measurement values ​​can be determined by two relatively arranged indicating needle tips and corresponding inclination scale lines, and averaging the two groups of inclination measurement values ​​can reduce the measurement system error and improve the measurement accuracy.

[0022] As a further improvement of the above technical solution, the driving wheel and the driven wheel are both gears, and the driving wheel and the driven wheel are meshed for transmission; the transmission ratio is 1-4.

[0023] The beneficial effects of the above technical solution are: the driving wheel and the driven wheel are meshed for transmission, the structure is simple, and the measurement stability is good; when the transmission ratio is 1, the case is tilted 90 degrees, and the pointer can be driven to rotate 90 degrees relative to the dial; when the transmission ratio is 4, the case is tilted 90 degrees, and the pointer can be driven to rotate 360 ​​degrees relative to the dial, that is, the inclination angle to be measured is magnified 4 times for observation, which greatly improves the measurement accuracy.

[0024] As a further improvement of the above technical solution, the connecting member is a counterweight plate; a mounting hole is opened at the bottom of the connecting member, and the hammer body is passed through and fixed in the mounting hole.

[0025] The beneficial effects of the above technical solution are: the connecting part is a counterweight plate, which is rigid and can support and fix the hammer. Even if the case is tilted along the length of the ship, measurements can be performed; the adaptability of the heel meter to the vibration and shaking of the ship is improved, which brings convenience to the measurement.

[0026] It can be seen from the above technical solutions that, compared with the prior art, the utility model discloses a mechanical heel meter, which has the following advantages and beneficial effects:

[0027] 1. The utility model can improve the inclination measurement accuracy and measurement stability, and has the characteristics of compact structure and convenient installation and operation.

[0028] 2. The utility model can adapt to the interference of factors such as ship vibration and airflow, and has high measurement stability; the indicating component can be adjusted to zero position, and the pointer and the dial are coaxial and coplanar, and the double indicating needle tip method is used to improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0030] Figure 1 A front view schematic diagram of a mechanical heel gauge of the utility model;

[0031] Figure 2 The utility model Figure 1 Middle AA section view;

[0032] Figure 3 A schematic diagram of the structure of a pendulum drive assembly of a mechanical incline meter of the utility model;

[0033] Figure 4 A front view schematic diagram of a mechanical heel gauge connecting piece of the utility model;

[0034] In the figure: 1. case; 11. front cover; 111. observation port; 112. adjusting screw; 12. back case; 13. support ring; 14. mounting plate; 141. support column; 15. transparent window; 2. transmission mechanism; 21. driving wheel; 211. axle; 22. driven wheel; 3. pendulum drive assembly; 31. connector; 311. mounting hole; 32. hammer body; 4. indication assembly; 41. dial; 411. avoidance hole; 42. pointer; 421. indication needle tip. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figures 1 to 4 As shown, the utility model provides a mechanical heel meter, comprising:

[0040] The watch case 1 is cylindrical, with a sealed rear end and an observation port 111 disposed at the front end of the watch case 1.

[0041] The transmission mechanism 2 includes a driving wheel 21 and a driven wheel 22 disposed inside the watch case 1; the driving wheel 21 is in transmission connection with the driven wheel 22; and the transmission ratio between the driving wheel 21 and the driven wheel 22 is not less than 1;

[0042] The pendulum driving assembly 3 includes a connecting member 31 and a hammer 32; the hammer 32 is located on a radial side of the driving wheel 21; the hammer 32 is connected to the driving wheel 21 through the connecting member 31, and can drive the driving wheel 21 to rotate relative to the watch case 1 through the action of gravity;

[0043] Indicator assembly 4; the indicator assembly 4 includes a dial 41 and a pointer 42 that cooperates with the dial 41 to indicate the inclination angle; the dial 41 and the pointer 42 are both arranged at the front of the case 1 and correspond to the observation port 111; the pointer 42 is coaxially fixedly mounted on the driven wheel 22.

[0044] A mechanical heel gauge of this embodiment, according to the pendulum principle, under the action of gravity, the hammer 32 provides torque through the connecting piece 31 to drive the driving wheel 21 to rotate; when in use, the case 1 can be fixed on the ship so that the axis of the driving wheel 21 is parallel to the length direction of the ship. When the ship tilts laterally, the case 1 also tilts. Under the action of the weight of the hammer 32 itself, the connecting piece 31 can provide torque to drive the driving wheel 21 to rotate relative to the case 1; the rotating driving wheel 21 will drive the driven wheel 22 to rotate, and then the driven wheel 22 drives the pointer 42 to rotate, and the pointer 42 cooperates with the dial 41 to indicate the inclination angle. The transmission ratio can be reasonably designed according to the accuracy of the inclination angle measurement. The larger the transmission ratio of the driving wheel 21 to the driven wheel 22, the larger the rotation angle of the driven wheel 22 corresponding to the same rotation angle of the driving wheel 21, that is, the larger the rotation angle of the pointer 42, the higher the sensitivity, thereby achieving improved measurement accuracy. The observation port 111 is used to observe the pointer indication scale. In this embodiment, the length of the connecting member 31 can be designed to be short, and the measurement accuracy can be ensured by reasonably increasing the transmission ratio, and the overall structure can be more compact.

[0045] In some embodiments, the watch case 1 includes a front cover 11, a rear case 12, a support ring 13 and a mounting plate 14; the rear case 12 has an open front end, and the support ring 13 is arranged at the front end of the rear case 12 and corresponds to the open front end of the rear case 12; the dial 41 is adapted to be installed in the ring hole of the support ring 13, and the dial 41 is coaxial with the support ring 13; the front cover 11 is composed of a cylinder and an end panel integrally sealed at the cylinder mouth of one end of the cylinder, and an observation port 111 is opened in the center of the end panel to make the front cover 11 circular; the front cover 11 is adapted to be buckled on the front part of the rear case 12 and the support ring 13 is pressed against the front end of the rear case 12 through the end panel; the support ring 13 is adapted to be located inside the cylinder of the front cover 11; the mounting plate 14 is parallel to the dial 41 and is fixed inside the rear case 12 through a support column 141, and the driving wheel 21 and the driven wheel 22 are both rotatably connected to the mounting plate 14 through the wheel axle 211.

[0046] Specifically, one end of the support column 141 is fixed to the rear wall of the rear shell 12 by screws; and the mounting plate 14 is fixed to the other end of the support column 141 by screws.

[0047] The case 1 plays a protective role; the dial 41 is mounted on the support ring 13, and the posture can be adjusted by rotating the support ring 13; the front cover 11 plays a role in pressing and fixing the support ring 13 to prevent the dial 41 from shifting relative to the case 1.

[0048] In some embodiments, the watch case 1 further includes a transparent window 15, which is arranged in the front cover 11 corresponding to the side of the support ring 13 away from the rear case 12 and covers the observation port 111 of the end panel. The material for making the transparent window 15 can be colorless transparent organic glass.

[0049] The transparent window 15 is used to observe the inclination scale value indicated by the pointer, and also plays the role of sealing the case 1 to protect the various components inside the inclination meter and prevent the influence of external airflow on the measurement.

[0050] In some embodiments, the front cover 11 is rotatably connected to the front of the rear shell 12. The rotation of the front cover 11 can frictionally drive the support ring 13 to rotate axially relative to the rear shell 12 to adjust the indication value of the pointer 42 on the dial 41; the side wall of the front cover 11 is threadedly connected with an adjustment screw 112 that can be fixed on the outer wall of the corresponding rear shell 12.

[0051] Specifically, a threaded through hole adapted to the adjusting screw 112 is opened on the peripheral wall of the front cover 11 , and one end of the adjusting screw 112 is threadedly connected and passes through the threaded through hole, and can be abutted and fastened on the corresponding peripheral wall of the rear shell 12 .

[0052] The adjusting screw 112 can fasten the front cover 11 to the rear shell 12; when adjusting the inclination angle at zero position, the adjusting screw 112 can be loosened to make the front cover 11 rotate coaxially relative to the rear shell 12, and the support ring 13 is driven to rotate by the contact friction force of the front cover 11 on the support ring 13, so as to adjust the rotation of the dial 41 relative to the pointer 42, making the adjustment of the inclination angle at zero position more convenient.

[0053] In some embodiments, a avoidance hole 411 is opened in the middle of the dial 41, and the pointer 42 is located in the avoidance hole 411 and is coaxial and coplanar with the dial 41; an inclination scale line 412 is set on the surface of the dial 41 corresponding to the needle tip of the pointer 42.

[0054] Specifically, the length of the pointer 42 is equal to the diameter of the avoidance hole 411 ; the pointer 42 and the side of the dial 41 close to the transparent window 15 are coplanar; and there is a certain gap between the pointer 42 and the dial 41 and the transparent window 15 .

[0055] The pointer 42 is coaxially and coplanarly arranged with the dial 41, so as to avoid measurement errors caused by reading parallax.

[0056] In some embodiments, the pointer 42 has two indicating needle tips 421 arranged opposite to each other; and the dial 41 is provided with inclination scale lines 412 at locations corresponding to the two indicating needle tips 421 .

[0057] Specifically, the inclination scale lines 412 are arranged in an arc shape and surround the avoidance hole 411 .

[0058] Two groups of inclination measurement values ​​can be determined by two indicating needle tips 421 arranged opposite to each other and the corresponding inclination scale lines 412 . Averaging the two groups of inclination measurement values ​​can reduce the systematic error of the measurement and improve the measurement accuracy.

[0059] In some embodiments, the driving wheel 21 and the driven wheel 22 are both gears, and the driving wheel 21 and the driven wheel 22 are meshed for transmission; the transmission ratio is 1-4.

[0060] The driving wheel 21 and the driven wheel 22 are meshed for transmission, with a simple structure and good measurement stability. When the transmission ratio is 1, the case 1 is tilted 90 degrees, and the pointer 42 can be driven to rotate 90 degrees relative to the dial 41. When the transmission ratio is 4, the case 1 is tilted 90 degrees, and the pointer 42 can be driven to rotate 360 ​​degrees relative to the dial 41, that is, the inclination angle to be measured is magnified by 4 times for observation, which greatly improves the measurement accuracy.

[0061] Specifically, the inclination scale lines 412 may be arranged around the avoidance hole 411 ; and scale values ​​may be marked on the surface of the dial corresponding to the outer sides of the inclination scale lines 412 .

[0062] In some embodiments, the connecting member 31 is a counterweight plate; a mounting hole 311 is provided at the bottom of the connecting member 31, and the hammer body 32 is adapted to pass through and is fixed in the mounting hole 311 by bolts.

[0063] The connecting piece 31 is a counterweight plate, which is rigid and can support and fix the hammer body 32. Even if the case 1 is tilted along the length direction of the ship, measurements can be performed; the adaptability of the heel meter to the vibration and shaking of the ship is improved, which brings convenience to the measurement; the connecting piece 31 is made of a counterweight plate, which can increase the overall inertial mass of the pendulum drive assembly; based on the inertial properties of the object itself, in the pendulum drive assembly, the connecting piece 31 and the hammer body 32 provide driving force through their own gravity while also providing inertial damping force, which is conducive to achieving stable measurement.

[0064] Specifically, the top of the connecting member 31 is sleeved on the axle 211 of the driving wheel 21 ; the connecting member 31 is located between the driving wheel 21 and the mounting plate 14 .

[0065] In some embodiments, the connecting member 31 is arranged on a side of the mounting plate 14 away from the driving wheel 21 (not shown in the figure), and is fixed to the end of the axle 211 of the driving wheel 21 away from the driving wheel 21 to prevent the driven wheel from interfering with the rotation of the connecting member 31 and the hammer 32.

[0066] Specifically, the distance between the hammer body 32 and the axle 211 of the driving wheel 21 is smaller than the distance between the axle 211 of the driving wheel 21 and the support column 141; the connecting piece 31 and the hammer body 32 can rotate around the axle 211 of the driving wheel 21 without interfering with the support column 141 of the fixed mounting plate 14, thereby preventing the rotating connecting piece 31 and the hammer body 32 from colliding with the internal structure to cause damage and affect the accuracy.

[0067] In some embodiments, the dial 41 can be fixed on the mounting plate 14 by bolts without subsequent adjustment; the pointer 42 can be removably sleeved on the axle of the driven wheel 22, and the indication scale of the pointer 42 on the dial 41 needs to be calibrated when installing and fixing the pointer; when a zero position error occurs, the pointer 42 needs to be adjusted.

[0068] Specifically, the rear end surface and the peripheral side wall surface of the watch case 1 are positioning and mounting surfaces; the tilting watch can be positioned and mounted through the positioning and mounting surfaces to ensure the mounting accuracy.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A mechanical heel gauge, characterized in that: include: A watch case (1), wherein the front end of the watch case (1) is provided with an observation port (111), A transmission mechanism (2), the transmission mechanism (2) comprising a driving wheel (21) and a driven wheel (22) arranged inside the watch case (1); the driving wheel (21) is transmission-connected with the driven wheel (22); a transmission ratio between the driving wheel (21) and the driven wheel (22) is not less than 1; A pendulum driving assembly (3), the pendulum driving assembly (3) comprising a connecting member (31) and a hammer (32); the hammer (32) is located on one radial side of the driving wheel (21); the hammer (32) is connected to the driving wheel (21) through the connecting member (31), and can drive the driving wheel (21) to rotate relative to the watch case (1) through the action of gravity; An indicating assembly (4); the indicating assembly (4) comprises a dial (41) and a pointer (42) cooperating with the dial (41) to indicate an inclination angle; the dial (41) and the pointer (42) are both arranged at the front of the watch case (1) and correspond to the observation port (111); the pointer (42) is coaxially fixedly mounted on the driven wheel (22).

2. A mechanical heel gauge according to claim 1, characterized in that: The watch case (1) comprises a front cover (11), a rear case (12), a support ring (13) and a mounting plate (14); the front end of the rear case (12) is open, and the support ring (13) is arranged at the front end of the rear case (12) and corresponds to the open end; the dial (41) is mounted on the support ring (13); the front cover (11) is annular, and its annular inner hole is the observation port (111); the front cover (11) is adapted to be buckled on the front part of the rear case (12) and press the support ring (13) against the front end of the rear case (12); the mounting plate (14) is fixed inside the rear case (12), and the driving wheel (21) and the driven wheel (22) are both rotatably connected to the mounting plate (14).

3. A mechanical heel gauge according to claim 2, characterized in that: The watch case (1) further comprises a transparent window (15), wherein the transparent window (15) is arranged in the front cover (11) corresponding to a side of the support ring (13) away from the rear cover (12) and covers the observation port (111).

4. A mechanical heel gauge according to claim 2, characterized in that: The front cover (11) is rotatably connected to the front part of the rear shell (12); the rotation of the front cover (11) can frictionally drive the support ring (13) to rotate axially relative to the rear shell (12) to adjust the indication value of the pointer (42) on the dial (41); the peripheral side wall of the front cover (11) is threadedly connected with an adjustment screw (112) that can be fixed on the corresponding outer peripheral wall of the rear shell (12).

5. A mechanical heel gauge according to claim 1, characterized in that: A relief hole (411) is provided in the middle of the scale plate (41), the pointer (42) is located in the relief hole (411) and is coaxial and coplanar with the scale plate (41); and an inclination scale line (412) is provided on the surface of the scale plate (41) corresponding to the needle tip of the pointer (42).

6. A mechanical heel gauge according to claim 5, characterized in that: The pointer (42) has two indicating needle tips (421) arranged opposite to each other; and the inclination scale lines (412) are arranged at positions corresponding to the two indicating needle tips (421) on the scale plate (41).

7. A mechanical heel gauge according to claim 1, characterized in that: The driving wheel (21) and the driven wheel (22) are both gears, and the driving wheel (21) and the driven wheel (22) are meshed for transmission; the transmission ratio is 1-4.

8. A mechanical heel gauge according to claim 1, characterized in that: The connecting member (31) is a counterweight plate; a mounting hole (311) is provided at the bottom of the connecting member (31), and the hammer body (32) is passed through and fixed in the mounting hole (311).

Citation Information

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