An inclinometer
By setting a buffer cylinder and speed bump on the bottom of the inclination probe of the inclination probe, the pulley is gradually braking, which solves the problem of damage caused by too fast descending speed of the inclination probe, improves the measurement accuracy and reduces costs.
Patent Information
- Application Number
- CN202421333370.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-12
AI Technical Summary
In existing inclinometers, the inclinometer probe is too fast during the lowering process, resulting in impact damage when hitting the bottom, affecting the measurement accuracy.
A inclinometer is designed to provide a buffer cylinder and speed bump at the bottom of the inclinometer probe to achieve gradual braking of the pulley, reduce the descent speed of the inclinometer probe and avoid impact damage.
It effectively avoids impact damage caused by the inclined probe due to the rapid descent speed, improves measurement accuracy, and has a simple structure, low cost and high reliability.
Smart Images
Figure CN222718938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measurement, in particular to an inclinometer. Background Art
[0002] An inclinometer is an instrument used to measure the top angle and azimuth of engineering structures such as boreholes, foundation pits, foundations, walls and dam slopes. Currently, inclinometers are divided into portable inclinometers and fixed inclinometers.
[0003] In the prior art, when the inclinometer probe is lowered into the inclinometer tube or hole, the operator often lowers it at a faster speed for efficiency. After the inclinometer probe touches the bottom, it often hits the bottom heavily. If this happens frequently, the structure of the inclinometer probe or the internal sensor may be damaged, affecting the measurement accuracy. Utility Model Content
[0004] The utility model aims to develop an inclinometer which can gradually brake a pulley when an inclinometer probe touches the bottom to reduce the descending speed of the inclinometer probe and avoid the inclinometer probe from being damaged by collision.
[0005] The utility model is achieved through the following technical solutions:
[0006] An inclinometer, comprising:
[0007] A data acquisition instrument and an inclinometer probe, wherein a cable is connected between the inclinometer probe and the data acquisition instrument;
[0008] Two guide wheel groups are installed on the inclinometer probe, and the guide wheel groups include:
[0009] A guide wheel rod, the middle part of which is rotatably connected to the inclinometer probe;
[0010] Two pulleys are rotatably arranged at both ends of the guide wheel rod;
[0011] A friction disc, coaxially arranged on the pulley;
[0012] The speed reduction belt is arc-shaped and one end of which is rotatably connected to the guide wheel rod on the side of the friction disc;
[0013] The first winding drum is sleeved on the outer side of the rotating shaft rotatably connected to the guide wheel rod and the inclinometer probe;
[0014] A buffer cylinder is slidably arranged at the bottom of the inclinometer probe;
[0015] A guide rod, provided on the inclinometer probe;
[0016] Among them, a spring is provided between the buffer cylinder and the bottom of the inclinometer probe, a torsion spring is provided between the speed reduction belt and the guide wheel rod, the first winding drum is connected to and wound with a first pull wire connected to the speed reduction belt, and the buffer cylinder is connected to a fourth pull wire that is wound through the guide rod and connected to the first winding drum.
[0017] Optionally, the speed bump is arc-shaped, with one end of the speed bump close to the friction disk and the other end away from the friction disk. The end of the speed bump close to the friction disk is rotatably connected to the guide wheel rod, and the first pull wire is connected to the end of the speed bump away from the friction disk.
[0018] Optionally, the bottom end of the buffer cylinder is a closed structure, and a cushion layer is provided on the bottom surface of the bottom end of the buffer cylinder.
[0019] Optionally, a retaining ring is provided on the outer wall of the bottom of the inclinometer probe, the inner diameter of the buffer tube is adapted to the retaining ring, and a flange matching the retaining ring is provided on the inner wall of the top end of the buffer tube.
[0020] Optionally, the spring is arranged between the retaining ring and the bottom end of the buffer cylinder, and the guide rod is located on the upper side of the retaining ring.
[0021] Optionally, a wire groove is opened on the outer wall of the inclinometer probe, the wire groove is vertically arranged and the length is not shorter than the buffer cylinder, the bottom end of the wire groove is located on the upper side of the retaining ring, the guide rod is arranged at the bottom end of the wire groove, one end of the fourth pull wire is connected to the flange, and the other end of the fourth pull wire extends out through the top of the wire groove.
[0022] Optionally, a second winding drum is rotatably provided on the inclinometer probe below the guide wheel rod, a winding rod is coaxially provided on the second winding drum, a third pull wire connected to a fourth pull wire is connected to and wound around the second winding drum, a second pull wire is connected to and wound around the winding rod, and the other end of the second pull wire is connected to and wound around the first winding drum.
[0023] Optionally, the outer diameter of the second winding drum is larger than that of the first winding drum, and the outer diameter of the winding rod is smaller than that of the first winding drum and the second winding drum.
[0024] Optionally, the inclinometer probe includes a sensing section, an upper guide section, a connecting section, a lower guide section and a tail section connected in sequence, the sensing section is connected to a cable, a sensor electrically connected to the cable is arranged in the sensing section, the two guide wheel groups are respectively arranged on the upper guide section and the lower guide section, the buffer cylinder is slidably arranged on the tail section, and the guide rod is arranged on the tail section.
[0025] Optionally, the top and bottom of the upper guide section, the connecting section and the lower guide section are respectively provided with a plug post and a slot, the bottom of the sensing section is provided with a slot, and the top of the tail section is provided with a plug post, the shape and position of the plug post match the slot and the two are bolted together.
[0026] The beneficial effects of the utility model are:
[0027] The utility model provides a buffer cylinder and a speed reduction belt connected to the buffer cylinder in a transmission manner, so that the rotational friction of the pulley is increased when the inclinometer probe gradually touches the bottom, and the pulley is gradually braked to achieve the purpose of gradually decelerating the inclinometer probe, thereby preventing the inclinometer probe from colliding due to excessive descent speed and causing damage to the structure or sensor. The utility model has a simple structure and is all mechanical structure, with low cost and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the present application 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 described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0029] Figure 1 It is a structural schematic diagram of the utility model;
[0030] Figure 2 It is a structural schematic diagram of the guide wheel group;
[0031] Figure 3 It is a structural diagram of the tail section;
[0032] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0033] Figure numerals: 1. data acquisition instrument; 2. cable; 3. inclinometer probe; 31. sensing section; 32. upper guide section; 33. connecting section; 34. lower guide section; 35. tail section; 36. guide wheel group; 361. guide wheel rod; 362. pulley; 37. plug column; 38. slot; 39. slot; 4. friction disk; 5. speed bump; 6. shield; 7. first pull wire; 8. first winding drum; 9. second pull wire; 10. second winding drum; 11. winding rod; 12. third pull wire; 13. buffer cylinder; 131. flange; 14. spring; 15. cushion layer; 16. wire groove; 17. fourth pull wire; 18. guide rod. DETAILED DESCRIPTION
[0034] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 should not be understood as a limitation to the present invention.
[0036] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0037] like Figures 1 to 4 As shown, the utility model discloses an inclinometer, which comprises a data acquisition instrument 1 and an inclinometer probe 3 , wherein a cable 2 is connected between the inclinometer probe 3 and the data acquisition instrument 1 .
[0038] The inclinometer probe 3 includes a sensing section 31, an upper guide section 32, a connecting section 33, a lower guide section 34 and a tail section 35 which are connected in sequence. The tops and bottoms of the upper guide section 32, the connecting section 33 and the lower guide section 34 are respectively provided with plug posts 37 and slots 38. The bottom of the sensing section 31 is provided with a slot 38, and the top of the tail section 35 is provided with a plug post 37.
[0039] The shape and position of the plug post 37 match the slot 38. The plug post 37 is inserted into the slot 38 and the two are connected by bolts. The sensing section 31, the upper guide section 32, the connecting section 33, the lower guide section 34 and the tail section 35 are connected to the slot 38 by bolts through the plug post 37 in sequence to form a whole. The structural sections are detachably connected, so that each structural section is easy to disassemble and replace.
[0040] The sensing section 31 is connected to the cable 2 , and a sensor electrically connected to the cable 2 is disposed in the sensing section 31 .
[0041] The upper guide section 32 and the lower guide section 34 are both provided with a slot 39, and a guide wheel group 36 is provided in the slot 39. The guide wheel group 36 includes a guide wheel rod 361, the middle of the guide wheel rod 361 is rotatably connected to the two side walls of the slot 39, and a torsion spring is provided between the guide wheel rod 361 and the slot 39, and both ends of the guide wheel rod 361 extend out of the slot 39, and pulleys 362 are rotatably provided at both ends of the guide wheel rod 361.
[0042] A disc-shaped friction disk 4 is coaxially connected to the rotating shaft of the pulley 362. The friction disk 4 is located on the side of the guide wheel rod 361 away from the pulley 362. A speed reduction belt 5 is rotatably provided on the outer wall of the guide wheel rod 361 on the side of the friction disk 4. The speed reduction belt 5 is arc-shaped, with one end of the speed reduction belt 5 close to the friction disk 4 and the other end away from the friction disk 4. The end of the speed reduction belt 5 close to the friction disk 4 is rotatably connected to the guide wheel rod 361 and a torsion spring is provided therebetween. The elastic force of the torsion spring causes the speed reduction belt 5 to swing outward away from the friction disk 4.
[0043] A first winding drum 8 is rotatably provided in the middle of the guide wheel rod 361. The first winding drum 8 is provided with two grooves, in which two first pull wires 7 are connected and wound in one groove, and a second pull wire 9 is connected and wound in the other groove.
[0044] The two first pull wires 7 are respectively connected to the ends of the speed reduction belts 5 on the outer sides of the two pulleys 362 away from the friction disk 4. The two speed reduction belts 5 on the outer sides of the two pulleys 362 of the guide wheel rod 361 are symmetrical about the center of the middle part of the guide wheel rod 361, so that when the first winding drum 8 rotates, the two first pull wires 7 are retracted and released synchronously.
[0045] The first winding drum 8 is sleeved on the outer side of the rotating shaft that is rotatably connected to the guide wheel rod 361 and the slot 39. The rotation of the first winding drum 8 and the guide wheel rod 361 is independent of each other and does not interfere with each other. A shield 6 is provided on the side wall of the guide wheel rod 361 outside the pulley 362. The shield 6 covers the speed reduction belt 5 and the friction disk 4 inside to prevent them from being exposed to the outside.
[0046] A second winding drum 10 is rotatably provided on the side wall of the slot 39 at the lower part of the guide wheel rod 361. The outer diameter of the second winding drum 10 is larger than that of the first winding drum 8. A winding rod 11 is coaxially connected to the second winding drum 10. The outer diameter of the winding rod 11 is much smaller than that of the first winding drum 8 and the second winding drum 10. The second pull wire 9 is connected and wound on the winding rod 11. The third pull wire 12 is connected and wound on the second winding drum 10.
[0047] A retaining ring is arranged on the outer wall of the lower part of the tail section 35, and a buffer cylinder 13 is sleeved on the outer part of the tail section 35. The bottom end of the buffer cylinder 13 is a closed structure, and a cushion layer 15 is arranged on the bottom surface of the bottom end of the buffer cylinder 13. A spring 14 is arranged in the buffer cylinder 13, one end of the spring 14 is connected to the bottom of the retaining ring, and the other end of the spring 14 is connected to the top surface of the bottom end of the buffer cylinder 13. The inner diameter of the buffer cylinder 13 is adapted to the retaining ring, and a flange 131 is arranged on the inner wall of the top end of the buffer cylinder 13 to cooperate with the retaining ring. When the buffer cylinder 13 slides on the tail section 35, the flange 131 slides on the outer wall of the tail section 35, and the flange 131 contacts the retaining ring to limit the buffer cylinder 13.
[0048] Two wire grooves 16 are provided on the outer wall of the tail section 35. The wire grooves 16 are vertically arranged and the length is not shorter than the buffer tube 13. The bottom end of the wire groove 16 is located on the upper side of the retaining ring. A guide rod 18 is rotatably provided at the bottom end of the wire groove 16. A fourth pull wire 17 is provided in the wire groove 16. One end of the fourth pull wire 17 is connected to the flange 131 after passing through the guide rod 18, and the other end of the fourth pull wire 17 extends out through the top of the wire groove 16. The third pull wire 12 on the second winding drum 10 in the slots 39 of the upper guide section 32 and the lower guide section 34 are respectively connected to the two fourth pull wires 17.
[0049] When the inclinometer probe 3 has not touched the bottom, the elastic force of the spring 14 causes the buffer cylinder 13 to slide down to the maximum stroke, the flange 131 contacts the retaining ring, the speed bump 5 moves away from the friction disk 4 under the action of the torsion spring, and the two first pull wires 7, the second pull wire 9, the third pull wire 12, and the fourth pull wire 17 are all kept taut. When the inclinometer probe 3 touches the bottom, the buffer cylinder 13 slides upward on the tail section 35, the spring 14 is compressed, the flange 131 of the buffer cylinder 13 moves upward away from the retaining ring, the fourth pull wire 17 wound around the guide rod 18 pulls the third pull wire 12 downward, the third pull wire 12 pulls the second winding drum 10, the second winding drum 10 rotates and drives the winding rod 11 to rotate, the winding rod 11 reels the second pull wire 9 to rotate the first winding drum 8, the first winding drum 8 reels the two first pull wires 7, the two speed bumps 5 swing toward the friction disk 4, and the speed bumps 5 contact the friction disk 4. The rotational friction of the pulley 362 increases. As the bottoming progresses, the higher the sliding stroke of the buffer cylinder 13, the greater the swing amplitude of the speed reduction belt 5, the greater the contact area between the speed reduction belt 5 and the friction plate 4, and the greater the rotational friction of the pulley 362. After the bottom end of the buffer cylinder 13 contacts the bottom end of the tail section 35, the contact area between the speed reduction belt 5 and the friction plate 4 reaches the maximum, and the rotational friction of the pulley 362 is the maximum, thereby achieving gradual braking of the pulley 362, reducing the descending speed of the inclinometer probe 3, and avoiding damage to the structure or sensor caused by excessive speed when the inclinometer probe 3 touches the bottom. When the inclinometer probe 3 is lifted, under the elastic force of the spring 14 and the torsion spring, the buffer cylinder 13 slides up and down on the tail section 35 and the speed reduction belt 5 is away from the friction plate 4, achieving reset. Since the swing range of the speed reducer 5 is small, the outer diameter of the second winding drum 10 is increased and the outer diameter of the guide wheel rod 361 is reduced, so that when the buffer cylinder 13 pulls the second winding drum 10 to rotate, the linear speed generated by the guide wheel rod 361 is small, and finally the linear speed of the guide wheel rod 361 is adapted to the first winding drum 8.
[0050] The utility model provides a buffer cylinder 13 and a speed reduction belt 5 which is transmission-connected to the buffer cylinder 13, so as to increase the rotational friction of the pulley 362 in the process of the inclinometer probe 3 gradually touching the bottom, and gradually brakes the pulley 362 to achieve the purpose of gradually decelerating the inclinometer probe 3, thereby preventing the inclinometer probe 3 from descending too fast and causing a collision to damage the structure or the sensor. The utility model has a simple structure and is all mechanical structure, with low cost and high reliability.
[0051] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.
Claims
1. An inclinometer, characterized in that: include: A data acquisition instrument and an inclinometer probe, wherein a cable is connected between the inclinometer probe and the data acquisition instrument; Two guide wheel groups are installed on the inclinometer probe, and the guide wheel groups include: A guide wheel rod, the middle part of which is rotatably connected to the inclinometer probe; Two pulleys are rotatably arranged at both ends of the guide wheel rod; A friction disc, coaxially arranged on the pulley; The speed reduction belt is arc-shaped and one end of which is rotatably connected to the guide wheel rod on the side of the friction disc; The first winding drum is sleeved on the outer side of the rotating shaft rotatably connected to the guide wheel rod and the inclinometer probe; A buffer cylinder is slidably arranged at the bottom of the inclinometer probe; A guide rod, provided on the inclinometer probe; Among them, a spring is provided between the buffer cylinder and the bottom of the inclinometer probe, a torsion spring is provided between the speed reduction belt and the guide wheel rod, the first winding drum is connected to and wound with a first pull wire connected to the speed reduction belt, and the buffer cylinder is connected to a fourth pull wire that is wound through the guide rod and connected to the first winding drum.
2. The inclinometer according to claim 1, characterized in that The speed reduction belt is arc-shaped, with one end of the speed reduction belt close to the friction disk and the other end away from the friction disk. The end of the speed reduction belt close to the friction disk is rotatably connected to the guide wheel rod, and the first pull wire is connected to the end of the speed reduction belt away from the friction disk.
3. The inclinometer according to claim 1, characterized in that The bottom end of the buffer cylinder is a closed structure, and a cushion layer is provided on the bottom surface of the bottom end of the buffer cylinder.
4. The inclinometer according to claim 3, characterized in that The outer wall at the bottom of the inclinometer probe is provided with a retaining ring, the inner diameter of the buffer tube is matched with the retaining ring, and the inner wall at the top of the buffer tube is provided with a flange matched with the retaining ring.
5. The inclinometer according to claim 4, characterized in that The spring is arranged between the retaining ring and the bottom end of the buffer cylinder, and the guide rod is located on the upper side of the retaining ring.
6. The inclinometer according to claim 5, characterized in that A wire groove is provided on the outer wall of the inclinometer probe, the wire groove is vertically arranged and the length is not shorter than the buffer tube, the bottom end of the wire groove is located on the upper side of the retaining ring, the guide rod is arranged at the bottom end of the wire groove, one end of the fourth pull wire is connected to the flange, and the other end of the fourth pull wire extends out through the top of the wire groove.
7. The inclinometer according to claim 6, characterized in that A second winding drum is rotatably provided on the inclinometer probe below the guide wheel rod, a winding rod is coaxially provided on the second winding drum, a third pull wire connected to a fourth pull wire is connected to and wound on the second winding drum, a second pull wire is connected to and wound on the winding rod, and the other end of the second pull wire is connected to and wound on the first winding drum.
8. The inclinometer according to claim 7, characterized in that The outer diameter of the second winding drum is larger than that of the first winding drum, and the outer diameter of the winding rod is smaller than that of the first winding drum and the second winding drum.
9. The inclinometer according to any one of claims 1 to 8, characterized in that: The inclinometer probe includes a sensing section, an upper guide section, a connecting section, a lower guide section and a tail section which are connected in sequence. The sensing section is connected to a cable. A sensor electrically connected to the cable is arranged in the sensing section. The two guide wheel groups are respectively arranged on the upper guide section and the lower guide section. The buffer cylinder is slidably arranged on the tail section, and the guide rod is arranged on the tail section.
10. The inclinometer according to claim 9, characterized in that The top and bottom of the upper guide section, the connecting section and the lower guide section are respectively provided with a plug post and a slot, the bottom of the sensing section is provided with a slot, and the top of the tail section is provided with a plug post, the shape and position of the plug post match the slot and the two are connected by bolts.