Integrated hot tub
Through integrated design and improvements to the magnetic pointer, the problems of the Tianchi meridian line falling off and yellowing have been solved, achieving a longer lifespan and higher precision pointing function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN MAOFENG HARDWARE CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-05-29
AI Technical Summary
The existing white paper cards or PCB films used by Tianchi are prone to peeling, curling, or yellowing, resulting in poor performance or even failure.
It adopts an integrated design, including the outer shell, meridian, central axis, magnetic pointer and transparent top cover. The meridian is integrally formed in the bottom of the outer shell. The magnetic pointer enhances the magnetism through magnetic blocks and ensures balance through the connection structure between the copper cap and the needle tail.
It improves the lifespan and pointing accuracy of the Tianchi (a type of compass), avoids the problems of meridian line detachment and yellowing, and maintains clear and good performance even after long-term use.
Smart Images

Figure CN224303049U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of geographical compass technology, specifically relating to an integrated celestial pool. Background Technology
[0002] The so-called "Heavenly Pool" refers to the magnetic needle and the well in which it is mounted, located at the very center of the compass, serving as a tool for indicating direction. Since the function of each layer of the compass depends entirely on the direction determined by the magnetic needle, the ancients believed that Heaven was the master of all things in the world, using Heaven to symbolize the importance of the magnetic needle in the compass's function. Furthermore, its shape resembles a well, and the original magnetic needle (evolved from the south-pointing chariot) was filled with water and floated, hence the name "Heavenly Pool."
[0003] Existing astronomical markers are usually created by drawing and printing the meridian lines on a white paper card or PCB film, and then placing the white paper card or PCB film at the bottom of the marker. Over time, the white paper card and PCB film are prone to peeling, curling, yellowing, or distortion, resulting in poor performance or even failure. Utility Model Content
[0004] This utility model provides an integrated celestial pool to solve the above-mentioned technical problems.
[0005] The solution adopted by this utility model to achieve its technical effect is as follows:
[0006] An integrated celestial pool comprises a celestial pool shell, a meridian line, a central axis, a magnetic pointer, a magnetic block, and a transparent top cover. The celestial pool shell is integrally formed. The meridian line is integrally formed and disposed on the inner bottom surface of the celestial pool shell. The central axis is vertically disposed on the bottom surface of the celestial pool shell, and the bottom of the central axis is located at the midpoint of the meridian line. A copper cap is rotatably fitted on the top of the central axis. The magnetic pointer comprises a rotating ring, a needle head, and a needle tail. The rotating ring is disposed on the outside of the copper cap. The needle head and needle tail are integrally disposed at both ends of the rotating ring. The magnetic block is disposed at the bottom of the rotating ring and surrounds the central axis. The transparent top cover seals the top of the celestial pool shell.
[0007] Preferably, the inner bottom surface of the Tianchi shell is provided with a groove integrally formed to form the meridian.
[0008] Preferably, the meridian is integrally laser-engraved on the inner bottom surface of the Tianchi shell.
[0009] Preferably, the meridian is integrally printed on the inner bottom surface of the Tianchi shell.
[0010] Preferably, the meridian is integrally formed by spraying the inner bottom surface of the Tianchi shell.
[0011] Preferably, a balance copper spring is fitted on the outer side of the end where the needle is connected to the swivel.
[0012] Preferably, the end of the needle tail is provided with a balancing tail fin.
[0013] Preferably, the top inner side of the side wall of the Tianchi shell is provided with an installation step and a sealing groove; the side of the transparent top cover is provided on the installation step; the sealing groove is located above the installation step; and a sealing ring is provided in the sealing groove.
[0014] Preferably, the outer shell of the Tianchi (Heavenly Pool) includes a base and sidewalls; the base and sidewalls are integrally formed by casting, welding, or riveting.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. The outer shell of the Tianchi is integrally molded, and the meridian line is directly integrally molded on the top of the inner bottom wall of the Tianchi outer shell. The meridian line will not fall off, yellow, or fade, resulting in a longer service life and clear and good performance even after long-term use.
[0017] 2. Adding a magnetic block to the bottom of the magnetic ring of the magnetic pointer can enhance the magnetism of the magnetic pointer, so that the magnetic pointer can still point accurately after long-term use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the external appearance of Tianchi as disclosed in an embodiment of this utility model;
[0019] Figure 2 This is a schematic diagram of the interior of the Tianchi (Heavenly Pool) as disclosed in an embodiment of this utility model;
[0020] Figure 3 This is a schematic diagram of a magnetic pointer disclosed in an embodiment of the present utility model.
[0021] Label Explanation:
[0022] 1-Outer shell of the Tianchi (Heavenly Pool); 101-Meridian line; 102-Installation step; 103-Sealing groove;
[0023] 2-Central axis, 201-Bronze cap;
[0024] 3-Magnetic pointer, 301-Rotating ring, 302-Needle tip, 303-Needle tail, 304-Balance copper spring, 305-Balance tail fin;
[0025] 4-Magnetic block;
[0026] 5- Transparent top cover;
[0027] 6-Sealing ring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or may have an intervening element present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may have an intervening element present. When an element is referred to as being "fixedly connected to" another element, it can be a common fixing connection method such as welding, riveting, or gluing.
[0029] Please refer to Figure 1-3 This utility model discloses an integrated celestial pool in a preferred embodiment, comprising a celestial pool shell 1, a meridian 101, a central axis 2, a magnetic pointer 3, a magnetic block 4, and a transparent top cover 5; the celestial pool shell 1 is integrally formed; the meridian 101 is integrally formed and disposed on the inner bottom surface of the celestial pool shell 1; the central axis 2 is vertically disposed on the inner bottom surface of the celestial pool shell 1, and the bottom of the central axis 2 is disposed at the midpoint of the meridian 101; a copper cap 201 is rotatably fitted on the top of the central axis 2; the magnetic pointer 3 includes a rotating ring 301, a needle head 302, and a needle tail 303; the rotating ring 301 is disposed on the outside of the copper cap 201; the needle head 302 and the needle tail 303 are integrally disposed at both ends of the rotating ring 301; the magnetic block 4 is disposed at the bottom of the rotating ring 301, and the magnetic block 4 surrounds the central axis 2; the transparent top cover 5 seals the top of the celestial pool shell 1.
[0030] Specifically, the inner bottom surface of the outer shell 1 of the Tianchi can be integrally formed with the meridian 101 by means of methods such as creating grooves, laser engraving, printing, and spraying. Furthermore, the inner bottom surface of the outer shell 1 of the Tianchi can be integrally formed with a reflective layer by means of laser engraving, printing, and spraying before the meridian 101 is integrally formed.
[0031] Specifically, a balancing copper spring is sleeved on the outer side of the end where the needle tip 302 is connected to the rotating ring 301, and a balancing tail fin 305 is provided at the end of the needle tail 303. The combination of the two ensures that the magnetic pointer 3 quickly maintains balance after rotation.
[0032] Specifically, the top inner side of the side wall of the Tianchi shell 1 is provided with an installation step 102 and a sealing groove 103; the side of the transparent top cover 5 is provided on the installation step 102; the sealing groove 103 is located above the installation step 102; a sealing ring 6 is provided in the sealing groove 103, which is used to cooperate with the transparent top cover 5 to seal and fix the interior of the Tianchi shell 1.
[0033] Specifically, the outer shell 1 of the Tianchi includes a base and a side wall; the base and the side wall are integrally formed by casting, welding or riveting.
[0034] As can be seen from the above description, this utility model has a long service life and good performance.
[0035] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. It should be noted that the protection scope of the present utility model includes, but is not limited to, the above embodiments; the specific structures disclosed in the accompanying drawings are only preferred embodiments of the present utility model. Those skilled in the art can develop other embodiments based on this. Any simple modifications or equivalent substitutions that do not depart from the innovative concept of the present utility model are covered by the present utility model and fall within the protection scope of the present utility model.
Claims
1. An integrated celestial pool, characterized in that: include: The outer shell of Tianchi; The outer shell of the Tianchi is integrally molded; meridian; The meridian is integrally formed and disposed on the inner bottom surface of the outer shell of the Tianchi. A central axis; the central axis is vertically arranged on the bottom surface of the outer shell of the Tianchi, and the bottom of the central axis is located at the midpoint of the meridian; a copper cap is rotatably fitted on the top of the central axis; A magnetic pointer; the magnetic pointer includes a rotating ring, a needle head, and a needle tail; the rotating ring is disposed on the outside of the copper cap; the needle head and needle tail are integrally disposed at both ends of the rotating ring; A magnetic block; the magnetic block is disposed at the bottom of the rotating ring and surrounds the central axis; A transparent top cover; the transparent top cover is sealed to the top of the outer shell of the Tianchi.
2. The integrated celestial pool according to claim 1, characterized in that: The inner bottom surface of the Tianchi shell is provided with a groove integrally formed to form the meridian.
3. The integrated celestial pool according to claim 1, characterized in that: The meridian is integrally laser-engraved on the inner bottom surface of the Tianchi shell.
4. The integrated celestial pool according to claim 1, characterized in that: The meridian is integrally printed on the inner bottom surface of the outer shell of the Tianchi.
5. The integrated celestial pool according to claim 1, characterized in that: The inner bottom surface of the Tianchi shell is sprayed with an integrally formed meridian.
6. The integrated celestial pool according to claim 1, characterized in that: A balancing copper spring is fitted on the outer side of the end where the needle is connected to the swivel.
7. The integrated celestial pool according to claim 1, characterized in that: The end of the needle tail is provided with a balancing tail fin.
8. The integrated celestial pool according to claim 1, characterized in that: The inner top of the side wall of the Tianchi shell is provided with an installation step and a sealing groove; the side of the transparent top cover is provided on the installation step; the sealing groove is located above the installation step; and a sealing ring is provided in the sealing groove.
9. The integrated celestial pool according to claim 1, characterized in that: The outer shell of the Tianchi includes a base and side walls; the base and side walls are integrally formed by casting, welding or riveting.