Compass comprising fixed structure
By designing a fixed structure of the bearing base and the connecting switch base in the compass pointer, the problem of inaccurate direction caused by insufficient magnetic energy of the compass pointer is solved, and convenient replacement of the pointer and reliability of direction judgment is achieved.
Patent Information
- Application Number
- CN202420609213.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The existing compass pointer is insufficient after a long period of use and cannot be accurately pointed, and it is directly fixed by the bearing, so it cannot be easily disassembled and replaced.
A fixed structure including a load-bearing base, a magnetic pointer, a central axis and a connecting switching seat are designed. The adaptation of the alignment hole, a horizontal positioning seat, a vertical limit ring and a spring provide support and limit to ensure the stability of the pointer. Rotate and facilitate disassembly and replace when magnetic energy is weakened.
It realizes rapid replacement and recycling of pointers, avoids inaccurate direction problems caused by insufficient magnetic energy, and provides protection for pointers to ensure the reliability of direction judgment.
Smart Images
Figure CN222188357U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of installation and fixing, and in particular relates to a compass with a fixing structure. Background Art
[0002] A compass is an instrument that uses the Earth's magnetic field to determine direction. It usually consists of a pointer mounted on a freely rotating base. The pointer is magnetic, so it points to the Earth's magnetic north pole, which is the geographical south pole, allowing people to determine their own direction. The internal magnetic energy of the pointer will be consumed when it is in use, resulting in the pointer being unable to point accurately after long-term use due to insufficient magnetic energy. Existing pointers are directly fixed by bearings, making it impossible to disassemble and replace the pointer. Utility Model Content
[0003] The utility model provides a compass with a fixed structure, which has the characteristics of providing support and fixing for a pointer and ensuring that the pointer can rotate, and when the magnetic energy of the pointer is insufficient after long-term use, the user can replace the pointer more conveniently.
[0004] The utility model provides the following technical solution: it includes a bearing base, an alignment hole is opened inside the bearing base, a horizontal positioning seat is fixedly connected to the inner wall of the bottom of the alignment hole, a protective cover is screwed on the outer side of the bearing base, a magnetic pointer is rotated above the bearing base, a center shaft is fixedly connected to the bottom end of the magnetic pointer, the center shaft rotates inside the alignment hole, two linked switching seats are slidably connected inside the bearing base, the center shaft is located between the two linked switching seats, and vertical limit rings are fixedly connected to the corresponding sides of the two linked switching seats.
[0005] Wherein, a clearance groove is provided inside the bearing base, and the linkage switching seat is slidably connected to the inside of the bearing base through the clearance groove.
[0006] Among them, the top of the bearing base is provided with an angle scale, and the outer wall of the bearing base and the inner wall of the protective cover are both provided with adapted thread grooves.
[0007] Wherein, a spring is fixedly connected between the linkage switching seat and the inner wall of the yielding groove.
[0008] Wherein, a guide groove is provided inside the bearing base, an auxiliary block is fixedly connected to the outer side of the linkage switching seat, and the auxiliary block slides inside the guide groove.
[0009] The beneficial effect of the utility model is that through the cooperation of the central rotating shaft and the linked switching seat and other components, while providing support and fixation for the magnetic pointer and ensuring that it can rotate, when the internal magnetic energy of the magnetic pointer weakens after long-term use and cannot provide accurate pointing, the staff can quickly and conveniently complete the disassembly and replacement of the magnetic pointer, thereby achieving the purpose of recycling.
[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0012] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;
[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the load-bearing base in the utility model;
[0014] Figure 4 It is a schematic diagram of the cross-sectional structure of the load-bearing base in the utility model;
[0015] Figure 5 for Figure 4 A magnified schematic diagram of center A.
[0016] In the figure: 1. bearing base; 11. alignment hole; 12. horizontal positioning seat; 13. clearance groove; 14. angle scale; 15. thread groove; 16. guide groove; 2. protective cover; 3. magnetic pointer; 31. center shaft; 4. linkage switching seat; 41. vertical limit ring; 42. spring; 43. auxiliary block. DETAILED DESCRIPTION
[0017] See also Figure 1-Figure 5 The utility model provides the following technical solutions: it includes a bearing base 1, a positioning hole 11 is opened inside the bearing base 1, a horizontal positioning seat 12 is fixedly connected to the inner wall of the bottom of the positioning hole 11, a protective cover 2 is screwed on the outer side of the bearing base 1, a magnetic pointer 3 is rotated above the bearing base 1, and a central shaft 31 is fixedly connected to the bottom end of the magnetic pointer 3, and the central shaft 31 rotates inside the positioning hole 11. Two linked switching seats 4 are slidably connected inside the bearing base 1, the central shaft 31 is located between the two linked switching seats 4, and the corresponding sides of the two linked switching seats 4 are fixedly connected with vertical limit rings 41.
[0018] In this embodiment: the bearing base 1 is used to support and connect various components, and to provide support for the magnetic pointer 3, so that the magnetic pointer 3 can judge the direction through the internal magnetic energy, and the alignment hole 11 opened inside the bearing base 1 is used to make way for the insertion of the central shaft 31, so that the central shaft 31 can be inserted into the bearing base 1, and then the magnetic pointer 3 can be rotated above the bearing base 1 to complete the direction pointing, and the horizontal positioning seat 12 fixed on the inner wall of the bottom of the alignment hole 11 is used to fix the horizontal direction of the central shaft 31, and the bottom end of the central shaft 31 is provided with a hole groove adapted to the horizontal positioning seat 12, so that when the staff inserts the central shaft 31 into the inside of the making way groove 13, the central shaft 31 will slide to the outside of the horizontal positioning seat 12, and due to the limitation of the horizontal positioning seat 12, the central shaft 31 will not move in the horizontal direction, thereby ensuring that the magnetic pointer 3 can rotate stably, and the protective cover 2 is screwed on the outside of the supporting base 1, so that the protective cover 2 can provide protection for the magnetic pointer 3, and prevent the external factors from affecting the rotation of the magnetic pointer 3, thereby ensuring that the magnetic pointer 3 can stably complete the pointing to the corresponding direction, and there are two interlocking switching seats 4 sliding inside the supporting base 1, and the corresponding directions of the two interlocking switching seats 4 are fixedly connected with vertical limiting rings 41, and the central shaft 31 has an annular groove with a smaller diameter, and the shape of the annular groove is adapted to the vertical limiting ring 41, so that when the staff inserts the central shaft 31 into the positioning After being inserted into the hole 11, the vertical limit ring 41 can slide to the outside of the central rotating shaft 31 to complete the limitation of the central rotating shaft 31 in the vertical direction, and then by limiting the central rotating shaft 31 in the horizontal and vertical directions, unnecessary displacement of the magnetic pointer 3 during the rotation process is avoided, so that the magnetic pointer 3 can stably complete the pointing work to the corresponding direction. During installation, the staff can insert the central rotating shaft 31 into the alignment hole 11, so that the supporting base 1 provides support for the magnetic pointer 3, and when the central rotating shaft 31 is inserted into the alignment hole 11, it will slide to the outside of the horizontal positioning seat 12, so that the horizontal positioning seat 12 can limit the horizontal direction of the central rotating shaft 31, and then the staff can slide the vertical limit ring 41 horizontally to make the vertical limit The positioning ring 41 slides to the outside of the central rotating shaft 31, thereby completing the vertical limit of the central rotating shaft 31, so that the central rotating shaft 31 can provide stable support for the magnetic pointer 3, ensuring that the magnetic pointer 3 will not have unnecessary displacement during the rotation by magnetic energy. Then the staff can install the protective cover 2 on the outside of the supporting base 1 to provide protection for the magnetic pointer 3. After the magnetic energy of the magnetic pointer 3 is weakened after long-term use, the staff can remove the protective cover 2 and then slide the linkage switching seat 4 to cancel the limit of the central rotating shaft 31 by the vertical limit ring 41. Then the staff can slide the central rotating shaft 31 vertically out of the alignment hole 11 and install the new magnetic pointer 3 on the top of the supporting base 1.The replacement of the magnetic pointer 3 is completed.
[0019] A clearance groove 13 is provided inside the supporting base 1, and the linkage switching seat 4 is slidably connected to the inside of the supporting base 1 through the clearance groove 13; the clearance groove 13 provided inside the supporting base 1 is used to make way for the sliding of the linkage switching seat 4, so that the staff can slide the linkage switching seat 4 horizontally during the process of disassembling and assembling the magnetic pointer 3, so that the linkage switching seat 4 drives the vertical limit ring 41 to move, thereby completing the engagement limit of the center shaft 31.
[0020] An angle scale 14 is provided on the top of the bearing base 1, and matching thread grooves 15 are provided on the outer wall of the bearing base 1 and the inner wall of the protective cover 2; the angle scale 14 provided on the top of the bearing base 1 is used to assist personnel in judging the orientation. When the magnetic pointer 3 completes pointing to the orientation, the user can know the specific orientation of a certain direction through the cooperation of the magnetic pointer 3 and the angle scale 14. Matching thread grooves 15 are provided on the outer side of the bearing base 1 and the inside of the protective cover 2, so that the staff can install the protective cover 2 on the outer side of the bearing base 1, so that the protective cover 2 can complete the protection operation of the magnetic pointer 3.
[0021] A spring 42 is fixedly connected between the linkage switching seat 4 and the inner wall of the give way groove 13; the spring 42 fixed between the linkage switching seat 4 and the inner wall of the give way groove 13 is used to push the vertical limit ring 41, so that the vertical limit ring 41 can be continuously located on the outside of the central rotating shaft 31, thereby completing the limitation of the central rotating shaft 31, avoiding unnecessary deviation of the magnetic pointer 3 during normal use, and ensuring the accuracy of the orientation pointing of the magnetic pointer 3.
[0022] A guide groove 16 is provided inside the bearing base 1, and an auxiliary block 43 is fixedly connected to the outside of the linkage switching seat 4, and the auxiliary block 43 slides inside the guide groove 16; the guide groove 16 provided inside the bearing base 1 is used to guide the sliding of the linkage switching seat 4, and an auxiliary block 43 is fixed to the outside of the linkage switching seat 4, and the auxiliary block 43 slides inside the guide groove 16, so that when the staff slides the linkage switching seat 4, the movement trajectory of the linkage switching seat 4 will be guided by the guide groove 16, thereby avoiding unnecessary displacement of the linkage switching seat 4 during the movement, so that the linkage switching seat 4 can stably drive the vertical limit ring 41 to move.
[0023] The working principle and use process of the utility model are as follows: during installation, the staff can first insert the central rotating shaft 31 into the alignment hole 11, so that the supporting base 1 provides support for the magnetic pointer 3. When the central rotating shaft 31 is inserted into the alignment hole 11, since the bottom end of the central rotating shaft 31 is provided with a hole groove adapted to the horizontal positioning seat 12, the central rotating shaft 31 will slide to the outside of the horizontal positioning seat 12, so that the horizontal positioning seat 12 can limit the horizontal direction of the central rotating shaft 31. Then, the staff can slide the vertical limiting ring 41 horizontally to the outside of the central rotating shaft 31, thereby completing the vertical limitation of the central rotating shaft 31, so that The center shaft 31 can provide stable support for the magnetic pointer 3 to ensure that the magnetic pointer 3 will not have unnecessary displacement during the rotation by magnetic energy. The staff can then install the protective cover 2 on the outside of the supporting base 1 to provide protection for the magnetic pointer 3. After the magnetic energy of the magnetic pointer 3 weakens after long-term use, the staff can remove the protective cover 2 and then slide the linked switching seat 4 so that the vertical limit ring 41 cancels the limit on the center shaft 31. Then the staff can slide the center shaft 31 vertically out of the alignment hole 11 and install the new magnetic pointer 3 on the top of the supporting base 1 to complete the replacement of the magnetic pointer 3.
Claims
1. A compass with a fixed structure, comprising a bearing base (1), Features: The bearing base (1) is provided with an alignment hole (11) inside, and a horizontal positioning seat (12) is fixedly connected to the inner wall of the bottom of the alignment hole (11). A protective cover (2) is screwed on the outer side of the bearing base (1). A magnetic pointer (3) is rotatable on the top of the bearing base (1), and a central rotating shaft (31) is fixedly connected to the bottom end of the magnetic pointer (3). The central rotating shaft (31) rotates inside the alignment hole (11). Two linked switching seats (4) are slidably connected inside the bearing base (1), and the central rotating shaft (31) is located between the two linked switching seats (4). The corresponding sides of the two linked switching seats (4) are fixedly connected with vertical limiting rings (41).
2. A compass comprising a fixed structure according to claim 1, Features: A clearance groove (13) is provided inside the bearing base (1), and the linkage switching seat (4) is slidably connected to the inside of the bearing base (1) via the clearance groove (13).
3. A compass comprising a fixed structure according to claim 1, Features: The top of the bearing base (1) is provided with an angle scale (14), and the outer wall of the bearing base (1) and the inner wall of the protective cover (2) are both provided with matching thread grooves (15).
4. A compass comprising a fixed structure according to claim 2, Features: A spring (42) is fixedly connected between the linkage switching seat (4) and the inner wall of the yielding groove (13).
5. A compass comprising a fixed structure according to claim 1, Features: A guide groove (16) is provided inside the bearing base (1), and an auxiliary block (43) is fixedly connected to the outside of the linkage switching seat (4), and the auxiliary block (43) slides inside the guide groove (16).