Geological survey compass
By improving the locking device, knob drive, and strap fixing structure of the geological survey compass, the problems of inconvenient operation and tool loss were solved, thus improving the ease of use and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-14
AI Technical Summary
Existing geological surveying compasses suffer from problems such as inconvenient locking operation, difficulty in operating the drive handle, easy slippage of the compass, and easy loss of small tools.
A geological surveying compass was designed, which adopts a locking device, a knob drive structure, a strap fixing and storage groove structure, and improves the locking operation, driving method and tool carrying method.
It achieves simple locking operation, smooth measurement process, compass is not easy to fall off and tools are not easy to lose, thus improving detection efficiency and equipment reliability.
Smart Images

Figure CN224121955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geological exploration equipment technology, specifically a geological surveying compass. Background Technology
[0002] A compass is a tool that uses the principle of geomagnetism to measure direction and angle. It is widely used in geological exploration, engineering construction, navigation, mountaineering and other fields. Its core function is to detect geographical direction and assist in geological exploration, engineering construction and outdoor navigation. Geological surveying compasses mainly detect the strike, dip and inclination of rock strata. Their purpose is to help locate the direction of mineral veins, the location of faults and to judge and prevent geological disaster risks.
[0003] Currently, there are three common types of compasses on the market. The first type is the digital laser geological compass, which is a new type of compass that combines laser technology and digital technology. It may have more accurate measurement functions, but at present, this type of compass is relatively complex and expensive. The second type is the electronic compass, which measures direction based on electronic technology and magnetic induction principle, but it depends on a power supply and may face power supply problems in extreme environments. The third type is the magnetic needle geological surveying compass, which uses a magnetic needle pointing to the Earth's magnetic field to determine direction. This is the traditional geological compass and is the most common and widely used geological surveying compass on the market. This utility model mainly improves the traditional geological surveying compass.
[0004] After measuring a certain data, the existing equipment requires pressing a lock button. The lock button uses a lever principle to lift the magnetic needle upward, fixing it between the lever and the glass surface. After the magnetic needle is locked, the data is read. During this process, the operator needs to continuously apply pressure to the lock button; otherwise, the magnetic needle will return to its active state after being released, rendering the measurement results invalid. This makes the operation very inconvenient.
[0005] Furthermore, when measuring the dip angle, the compass must first be vertically attached to the rock surface. Then, the long side of the compass is moved to the dip line of the rock surface. Next, the drive handle at the bottom of the compass is turned with a finger. The drive handle rotates the level tube and circular level in the measuring box. When the bubble is centered, the angle data pointed to by the pointer is read. The angle data pointed to by the pointer at this time is the dip angle of the rock surface. However, when turning the drive handle, because the drive handle is located at the bottom of the compass, it is difficult to turn. Moreover, the turning angle is easy to be too large, which causes the bubble in the level tube and circular level to shake violently, making the operation difficult during measurement and affecting the detection efficiency.
[0006] Furthermore, the equipment requires constant movement of the compass during use, and the testing points need to be changed after each test. However, due to the complex outdoor geological environment, the compass can easily slip from the operator's hands while walking or conducting tests, causing damage to the internal parts of the compass. Moreover, geological work is mostly done outdoors, and sometimes small tools such as rulers and knives are used for preliminary testing. However, small tools are very easy to lose when used in the field, making it impossible to carry out subsequent work.
[0007] Based on this, the present invention provides a geological surveying compass to solve the above problems. Utility Model Content
[0008] In view of the above situation and to overcome the defects of the prior art, this utility model provides a geological surveying compass. This utility model has a novel structure and ingenious design, and effectively solves the technical problems of inconvenient operation when locked, difficult operation when turning the drive handle, easy slippage of the compass leading to damage, and easy loss of small tools.
[0009] A geological surveying compass includes a measuring box with a hinged top cover. A measuring device is installed inside the measuring box. A pin is fixedly installed above the measuring device inside the measuring box, and a magnetic needle is installed on the pin. A locking device is installed below the magnetic needle. The locking device includes a lever, one end of which is slidably mounted on the pin, and the other end of which is integrally fixed with a pressure plate. The pressure plate has a through hole, and an installation groove located on the inner wall of the measuring box is formed outside the pressure plate. A horizontal shaft is fixedly installed in the installation groove, and the pressure plate is rotatably mounted on the horizontal shaft through the through hole.
[0010] Preferably, a mounting hole is provided below the pressure plate, and a spring is fixedly installed in the mounting hole. A locking hole is provided above the pressure plate, and a slot is provided on the inner wall of the locking hole. A locking button is installed in the locking hole, and a pressure rod is integrally fixed below the locking button. A locking block is integrally fixed on the pressure rod, and the locking block is slidably installed in the slot.
[0011] Preferably, the measuring device includes an inclinometer rotatably mounted inside a measuring box. A circular level is fixedly mounted on one end of the inclinometer, and a level tube is fixedly mounted on the other end. An installation compartment located inside the measuring box is opened below the inclinometer. A driven gear is rotatably mounted inside the installation compartment. A rotating shaft is fixedly mounted on the driven gear and connected to the bottom of the inclinometer. A driving gear is meshed with the driven gear on its side. The driven gear is larger than the driving gear. A drive shaft is fixedly mounted on the driving gear and extends to the measuring box. A knob is fixedly mounted at the end of the drive shaft.
[0012] Preferably, the measuring box has strap holes on both sides, a strap shaft is installed in the strap holes, telescopic holes are opened at both ends of the strap shaft, a compression spring is installed in the telescopic holes, a telescopic rod is slidably installed in the telescopic holes next to the compression spring, a pinch plate is integrally fixed on the telescopic rod, the two strap shafts are connected by the same strap, a storage slot is opened at the rear of the measuring box, a measuring ruler is placed in the storage slot, and an outdoor knife placed in the storage slot is placed above the measuring ruler.
[0013] Preferably, the upper cover has a mirror frame groove, a reflector is fixedly installed in the mirror frame groove, and an aiming hole is provided on the reflector.
[0014] Preferably, a sight plate is hinged to the front end of the measuring box, the sight plate has a sight hole, and a front sight is integrally fixed on the sight plate.
[0015] Preferably, the measuring box is provided with a horizontal scale and a vertical scale below the horizontal scale.
[0016] Preferably, a limit block is fixedly installed at the upper end of the pin, and an inclination measuring pointer is provided at the end of the inclinometer.
[0017] The present invention has the following technical effects.
[0018] 1. By adding a locking device, this utility model allows the pointer to be locked simply by pressing the locking button, eliminating the need for continuous pressing by the operator and solving the technical problem of inconvenient operation during use.
[0019] 2. This utility model solves the technical problem of difficult operation and reduced detection efficiency during measurement by replacing the drive handle with a knob, moving the knob from the bottom to the top of the device, and using a smaller driving gear to drive a larger driven gear.
[0020] 3. By incorporating a strap and other structures, and with the strap having an elasticity, the device is kept close to the palm of the hand when the hand is passed through the strap during testing. This prevents the device from falling off during testing or when the device is moved by hand, thus avoiding damage to the internal parts of the device.
[0021] 4. This utility model, by creating a storage slot, stores small outdoor tools such as measuring rulers and outdoor knives inside the device, allowing them to be moved synchronously with the device, thus avoiding the loss of tools when used in the field. Attached Figure Description
[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0023] Figure 1 This is a three-dimensional schematic diagram of the entire utility model.
[0024] Figure 2 This is a front sectional view of the present invention.
[0025] Figure 3 This is an enlarged view of the structure of the pressure plate, pressure rod, spring, etc. of this utility model.
[0026] Figure 4 This is a sectional view of the driven gear, driving gear, and drive shaft of this utility model.
[0027] Figure 5 This is an enlarged view of the strap-threading hole, telescopic rod, strap-threading shaft, and other mechanisms of this utility model.
[0028] Reference numerals: 1-Measuring box; 2-Top cover; 3-Pin; 4-Magnetic needle; 5-Lever; 6-Pressure plate; 7-Through hole; 8-Mounting groove; 9-Horizontal axis; 10-Mounting hole; 11-Spring; 12-Locking hole; 13-Slot; 14-Locking button; 15-Pressure rod; 16-Locking block; 17-Inclinometer; 18-Circular level; 19-Level tube; 20-Mounting chamber; 21-Driven gear; 22-Rotating shaft; 23-Driving gear 24-Wheel; 25-Drive shaft; 26-Knob; 27-Strap hole; 28-Strap shaft; 29-Telescopic rod; 30-Strap strap; 31-Storage slot; 32-Measuring ruler; 33-Outdoor knife; 34-Frame slot; 35-Reflector; 36-Sighting hole; 37-Sighting plate; 38-Sighting hole; 39-Horizontal dial; 40-Vertical dial; 41-Limit block; 42-Inclination pointer; 43-Compression spring; 44-Pinch plate. Detailed Implementation
[0029] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 5 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.
[0030] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.
[0031] This utility model is a geological surveying compass, including a measuring box 1 with an internal slot. A top cover 2 is hinged to the measuring box 1 and can be fastened to the measuring box 1. A measuring device is installed inside the measuring box 1, which can detect the strike, dip, and dip angle of rock strata. A pin 3 is installed above the measuring device. The pin 3 has magnetic force and a magnetic needle 4 is installed on the pin 3. The magnetic force on the pin 3 can make the north needle on the magnetic needle 4 always point to magnetic north. The magnetic needle 4 is divided into two ends, one end pointing south and the other end pointing north. A locking device is installed below the magnetic needle 4. The locking device includes a lever 5. The end of the lever 5 has a through hole and is sleeved on the pin 3. It can slide up and down along the pin 3. A pressure plate 6 is integrally fixed to the other end of the lever 5. A transverse through hole 7 is opened on the pressure plate 6. An installation groove 8 is provided on the inner wall of the measuring box 1. The installation groove 8 is rectangular in shape. A horizontal shaft 9 is fixedly installed in the installation groove 8. The pressure plate 6 is installed on the horizontal shaft 9 through the through hole 7, and the pressure plate 6 can rotate along the horizontal shaft 9.
[0032] As an example, a mounting hole 10 is provided below the pressure plate 6. The mounting hole 10 is located inside the measuring box 1. A spring 11 is fixedly installed inside the mounting hole 10. The bottom end of the spring 11 is fixed to the bottom of the mounting hole 10, and the upper end abuts against the bottom surface of the pressure plate 6. The pressure plate 6 can move up and down by retracting the spring 11. A locking hole 12 is provided on the pressure plate 6. The locking hole 12 is located above the mounting hole 10 and communicates with the mounting hole 10. A slot 13 is provided on the inner wall of the locking hole 12. The slot 13 is L-shaped. A locking button 14 is installed inside the locking hole 12. A pressure rod 15 is integrally fixed below the locking button 14. The pressure rod 15 is cylindrical. A pressure block is integrally fixed at the bottom of the pressure rod 15. The pressure block can push against the pressure plate 6 and slide up and down by retracting the spring 11. A locking block 16 is integrally fixed on the side wall of the pressure rod 15. The locking block 16 is cylindrical and always slides in the slot 13.
[0033] In practical use, when the magnetic needle 4 needs to be locked after a certain data is detected, the locking button 14 is pressed. The locking button 14 drives the pressure rod 15 to slide vertically along the slot 13. The pressure block below the pressure rod 15 abuts against the pressure plate 6. Due to the limiting effect of the horizontal axis 9, the pressure plate 6 forms a lever principle. The end of the lever 5 that slides on the ejector pin 3 slides upward and abuts against the magnetic needle 4, causing the magnetic needle 4 to disengage from the magnetic area of the ejector pin 3 and lose its ability to rotate freely, thus fixing the magnetic needle 4. Then, the locking button 14 is rotated, and the locking button 14 drives the pressure rod 15 to rotate synchronously. The locking block 16 on the pressure rod 15 slides horizontally along the slot 13. The pressure rod 15 is fixed into the slot 13 to achieve locking. At this time, the operator can directly pick up the equipment to observe the data without continuously applying pressure to the locking button 14, which solves the technical problem of inconvenient operation during use. After recording the measurement data, the locking button 14 is rotated in the opposite direction. The locking button 14 drives the pressure rod 15 to rotate in the opposite direction. The pressure rod 15 drives the locking block 16 to slide out laterally from the slot 13. At this time, the spring 11 under the pressure plate 6 is released, pushing the pressure plate 6 to move upward. The pressure rod 15 drives the other end of the lever 5 to slide downward, causing its magnetic needle 4 to be released and fall into the magnetic area of the pin 3. At this time, the magnetic needle 4 returns to the active state.
[0034] As one embodiment, the measuring device includes an inclinometer 17 rotatably mounted inside the measuring box 1. The inclinometer 17 has an arc-shaped groove for avoiding the pivot 3. When the inclinometer 17 rotates, the pivot 3 is located within the arc-shaped groove. A circular level 18 is fixedly mounted at one end of the inclinometer 17, with an internal cavity. A level tube 19 is fixedly mounted at the other end, also with an internal cavity. Both the circular level 18 and the level tube 19 are filled with liquid and contain air bubbles. A mounting chamber 20 is located below the inclinometer 17 at the bottom of the measuring box 1. The mounting chamber 20 is hollow inside, and a driven gear 21 is rotatably mounted inside it. A fixed... A rotating shaft 22 is fixedly installed and connected to the bottom of the inclinometer 17, so that when the driven gear 21 rotates, the inclinometer 17 rotates synchronously through the rotating shaft 22. A driving gear 23 is meshed on the side of the driven gear 21. The driven gear 21 is larger than the driving gear 23, so that the unit movement of the inclinometer 17 is smaller when it rotates. A drive shaft 24 is fixedly installed on the driving gear 23. The drive shaft 24 extends from the inside of the measuring box 1 to the upper end of the measuring box 1. A knob 25 is fixedly installed at the end of the drive shaft 24. By rotating the knob 25, the driving gear 23 can be driven to rotate through the drive shaft 24. The driving gear 23 can mesh with the driven gear 21 and drive the inclinometer 17 to rotate.
[0035] In practical use, when the operator needs to measure the inclination angle, first, the device is vertically attached to the rock surface. Then, the long side of the device is moved to the inclination line of the rock surface. Next, the knob 25 is turned. The knob 25 drives the drive gear 23 to rotate via the drive shaft 24. The drive gear 23 meshes with the driven gear 21, which in turn drives the rotating shaft 22 to rotate synchronously. The rotating shaft 22 then rotates the inclinometer 17, centering the bubble in the level tube 19 of the inclinometer 17. The pointed angle data is then read. This pointed angle data is the inclination angle of the rock surface. This process is simple and quick. This structure achieves transmission speed reduction through the smaller drive gear 23 meshing with the larger driven gear 21. The drive shaft 24 extends to the upper end of the measuring box 1 and is fitted with the knob 25, facilitating operation and solving the technical problems of difficult operation and reduced detection efficiency during measurement.
[0036] As one embodiment, the measuring box 1 has strap holes 26 on both sides, with an opening in the middle of the strap holes 26. A strap shaft 27 is installed inside the strap holes 26, and telescopic holes are opened at both ends of the strap shaft 27. A compression spring 43 is fixedly installed inside the telescopic hole, and the compression spring 43 is fixed to the bottom surface of the telescopic hole. A telescopic rod 28 is slidably installed in the telescopic hole next to the compression spring 43. A pinch plate 44 is integrally fixed on the telescopic rod 28. By pinching the pinch plate 44, the pinch plate 44 causes the telescopic rod 28 to slide into the telescopic hole, compressing the compression spring 43 in the telescopic hole, thereby enabling... It can be quickly disassembled from the opening in the middle of the threading hole 26. The two threading shafts 27 are connected by the same strap 29, which is elastic. A storage slot 30 is provided at the rear of the measuring box 1. The storage slot 30 is rectangular in shape and hollow inside. The storage slot 30 is divided into upper and lower layers. The lower layer contains a measuring ruler 31, which can measure the length of the rock layer to be measured. The upper layer contains an outdoor knife 32, which is also placed in the storage slot 30. The outdoor knife 32 can scrape off the oxides on the surface of the rock layer to expose the fresh rock layer surface for observation.
[0037] In practical use, when the operator needs to hold the device for measurement or movement, they can put their hand through the strap 29 and make the strap 29 fit snugly against their palm, so that the device is not easy to fall off and avoid damage to the internal parts of the device. When small tools are needed, the measuring ruler 31 and outdoor knife 32 can be taken out directly from the storage slot 30 for use. After use, they can be placed back into the recycling slot 30 so that they can be transferred synchronously with the device, avoiding the loss of tools when used in the field.
[0038] As an example, a mirror frame groove 33 is provided inside the upper cover 2, and a reflector 34 is fixedly installed inside the mirror frame groove 33. When the operator needs to read the scale or the direction of the magnetic needle 4, by adjusting the angle of the reflector 34, the measurer can clearly observe the reading of the magnetic needle 4 and the scale inside the device from the mirror without changing his own observation position. This avoids the device shaking due to direct bending over for observation, which affects the measurement accuracy. An aiming hole 35 is provided on the reflector 34. The user can align with the target object through the aiming hole 35 to observe the azimuth angle and the direction of the magnetic needle 4 being measured.
[0039] As an example, a sight plate 36 is hinged to the front end of the measuring box 1. A sight hole 37 is opened on the sight plate 36, and a front sight 38 is integrally fixed on the sight plate 36. When in use, move the body or equipment until the sight hole 37, the front sight 38 and the target are completely aligned. At this time, the scale indicated by the magnetic needle 4 of the equipment is the azimuth angle of the target.
[0040] As an example, the measuring box 1 is provided with a horizontal scale 39 for measuring horizontal angles, which can be used to locate and orient the environment such as rock strata. Below the horizontal scale 39 is a vertical scale 40 for measuring vertical angles and calculating slope and height difference.
[0041] As an example, a limit block 41 is fixedly installed on the upper end of the ejector pin 3 to prevent the magnetic needle 4 from detaching from the ejector pin 3 when the lever 5 is lifted. The end of the inclinometer 17 is provided with an inclinometer pointer 42, and the scale on the vertical scale 40 pointed to by the inclinometer pointer 42 is the inclinometer angle.
[0042] The working principle of this utility model is as follows: First, the device is vertically attached to the rock surface. Then, the long side of the device is moved to the inclined line of the rock surface. Then, the knob 25 is rotated. The knob 25 drives the drive gear 23 to rotate through the drive shaft 24. The drive gear 23 meshes with the driven gear 21 to rotate. The driven gear 21 drives the rotating shaft 22 to rotate synchronously. The rotating shaft 22 drives the inclinometer 17 to rotate, so that the bubble in the level tube 19 on the inclinometer 17 is centered. At this time, the locking button 14 is pressed. The locking button 14 drives the pressure rod 15 to slide vertically along the slot 13. The pressure block below the pressure rod 15 abuts against the pressure plate 6. The pressure plate 6 forms a lever principle due to the limitation of the horizontal shaft 9. The end of the lever 5 that slides on the top pin 3 slides upward and abuts against the magnetic needle 4, so that the magnetic needle 4 is disengaged. The magnetic area of the ejector pin 3 loses its ability to rotate freely, and its magnetic needle 4 is fixed. Then, the locking button 14 is rotated, and the locking button 14 drives the pressure rod 15 to rotate synchronously. The locking block 16 on the pressure rod 15 slides laterally along the slot 13, fixing the pressure rod 15 into the slot 13 to achieve locking. At this time, the operator can directly pick up the device to observe the data. When the operator needs to hold the device for measurement or movement, the hand can be put through the strap 29, so that the strap 29 is close to the palm, thereby achieving the effect that the device is not easy to fall off and avoiding damage to the internal parts of the device. When small tools are needed, the measuring ruler 31 and the outdoor knife 32 can be taken out directly from the storage slot 30 for use. After use, they can be put back into the recycling storage slot 30.
[0043] The present invention has the following technical effects.
[0044] 1. By adding a locking device, this utility model allows the pointer to be locked simply by pressing the locking button, eliminating the need for continuous pressing by the operator and solving the technical problem of inconvenient operation during use.
[0045] 2. This utility model solves the technical problem of difficult operation and reduced detection efficiency during measurement by replacing the drive handle with a knob, moving the knob from the bottom to the top of the device, and using a smaller driving gear to drive a larger driven gear.
[0046] 3. By incorporating a strap and other structures, and with the strap having an elasticity, the device is kept close to the palm of the hand when the hand is passed through the strap during testing. This prevents the device from falling off during testing or when the device is moved by hand, thus avoiding damage to the internal parts of the device.
[0047] 4. This utility model, by creating a storage slot, stores small outdoor tools such as measuring rulers and outdoor knives inside the device, allowing them to be moved synchronously with the device, thus avoiding the loss of tools when used in the field.
[0048] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be obvious to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A geological surveying compass, comprising a measuring box (1), a top cover (2) hinged to the measuring box (1), a measuring device installed inside the measuring box (1), a pin (3) fixedly installed inside the measuring box (1) above the measuring device, a magnetic needle (4) installed on the pin (3), and a locking device installed below the magnetic needle (4), characterized in that, The locking device includes a lever (5), one end of which is slidably mounted on the pin (3), and the other end of which is integrally fixed with a pressure plate (6). A through hole (7) is provided on the pressure plate (6), and an installation groove (8) located on the inner wall of the measuring box (1) is provided on the outside of the pressure plate (6). A horizontal shaft (9) is fixedly installed in the installation groove (8), and the pressure plate (6) is rotatably mounted on the horizontal shaft (9) through the through hole (7).
2. The geological surveying compass instrument according to claim 1, characterized in that, The pressure plate (6) has an installation hole (10) below it, and a spring (11) is fixedly installed in the installation hole (10). The pressure plate (6) has a locking hole (12) above it, and a slot (13) is provided on the inner wall of the locking hole (12). A locking button (14) is installed in the locking hole (12). A pressure rod (15) is integrally fixed below the locking button (14). A locking block (16) is integrally fixed on the pressure rod (15). The locking block (16) is slidably installed in the slot (13).
3. A geological surveying compass according to claim 1, characterized in that, The measuring device includes an inclinometer (17) rotatably mounted inside the measuring box (1). A circular level (18) is fixedly mounted on one end of the inclinometer (17), and a level tube (19) is fixedly mounted on the other end. An installation chamber (20) located inside the measuring box (1) is opened below the inclinometer (17). A driven gear (21) is rotatably mounted inside the installation chamber (20). A rotating shaft (22) is fixedly mounted on the driven gear (21). The rotating shaft (22) is connected to the bottom of the inclinometer (17). A driving gear (23) is meshed on the side of the driven gear (21). The driven gear (21) is larger than the driving gear (23). A drive shaft (24) is fixedly mounted on the driving gear (23). The drive shaft (24) extends to the measuring box (1). A knob (25) is fixedly mounted at the end of the drive shaft (24).
4. A geological surveying compass according to claim 1, characterized in that, The measuring box (1) has strap holes (26) on both sides. A strap shaft (27) is installed in the strap hole (26). A telescopic hole is opened at both ends of the strap shaft (27). A compression spring (43) is installed in the telescopic hole. A telescopic rod (28) is installed next to the compression spring (43) and is slidably installed in the telescopic hole. A pinch plate (44) is integrally fixed on the telescopic rod (28). The two strap shafts (27) are connected by the same strap (29). A storage slot (30) is opened at the rear of the measuring box (1). A measuring ruler (31) is placed in the storage slot (30). An outdoor knife (32) is placed above the measuring ruler (31) in the storage slot (30).
5. A geological surveying compass according to claim 1, characterized in that, The upper cover (2) has a mirror frame groove (33) inside, and a reflector (34) is fixedly installed inside the mirror frame groove (33). The reflector (34) has an aiming hole (35).
6. A geological surveying compass according to claim 1, characterized in that, The measuring box (1) is hinged to the front end and has a sight plate (36) with a sight hole (37) and a sight (38) fixed on it.
7. A geological surveying compass according to claim 1, characterized in that, The measuring box (1) is provided with a horizontal scale (39) and a vertical scale (40) below the horizontal scale (39).
8. A geological surveying compass according to claim 3, characterized in that, The upper end of the pin (3) is fixedly equipped with a limiting block (41), and the end of the inclinometer (17) is provided with an inclinometer pointer (42).