Instrument with inner core convenient to replace
By designing an oil injection system and anti-collision mechanism in the instrument, the problem of corrosion at the threaded connection was solved, ensuring the monitoring accuracy of the instrument and preventing damage from external forces, thus improving the practicality of the device.
Patent Information
- Application Number
- CN202422279999.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing instruments that facilitate the replacement of inner cores lack an oiling mechanism for threaded connections, leading to corrosion after long-term installation, affecting installation stability and monitoring accuracy, and reducing the practicality of the device.
An oil injection system was designed, comprising an oil tank, an oil pump, a return spring, a piston, a push rod, an oil delivery pipe, and an anti-collision mechanism. The system delivers lubricating oil to the threaded connection parts via a lubricating oil pump to prevent corrosion and protects the instrument panel with an anti-collision shell when the instrument is subjected to external force.
It achieves lubrication and rust prevention of threaded connections, ensuring the monitoring accuracy of the instrument and preventing damage from external forces, thus improving the practicality of the device.
Smart Images
Figure CN223500414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of instrumentation technology, and in particular to an instrumentation with an easy-to-replace inner core. Background Technology
[0002] Instruments and meters are widely used measurement, control, and display tools in various fields such as industry, scientific research, medicine, and environmental protection. They can detect, measure, observe, and calculate various physical quantities, material composition, and physical property parameters. With the advancement of technology, the types of instruments and meters have become increasingly diverse, and their functions have become increasingly varied. From simple thermometers and pressure gauges to complex fully automated control systems, instruments and meters have become an indispensable part of modern society. The classification of instruments and meters is very diverse and can be divided into several categories according to different principles. According to working principle, they can be divided into mechanical, electronic, optical, and electromagnetic types; according to application, they can be divided into testing instruments, measuring instruments, and control instruments; according to accuracy, they can be divided into general accuracy, medium accuracy, and high accuracy.
[0003] Most instruments and meters are installed on the equipment to be tested via threaded connections. Over time, the threaded interfaces will corrode, affecting the stability of the instrument installation. In the current technology, most instruments and meters that are easy to replace the inner core do not have an oiling mechanism for the threaded connection. After the instrument is installed on the equipment for a long time and rusts, it will not only make it inconvenient to replace and remove the instrument, but also affect the monitoring accuracy of the instrument and reduce the practicality of the device. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides an instrument that facilitates the replacement of the inner core, aiming to improve the problem that most existing instruments that facilitate the replacement of the inner core do not have an oiling mechanism for the threaded connection, resulting in reduced instrument detection accuracy and low practicality of the device.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an instrument that facilitates the replacement of its inner core, comprising an instrument panel, an oil tank fixedly connected to the back side of the instrument panel, a connecting pipe fixedly connected to the bottom of the oil tank, an oil pump fixedly connected to the bottom of the connecting pipe, a return spring fixedly connected inside the oil pump, a piston fixedly connected to the side of the return spring away from the instrument panel, a push rod fixedly connected to the side of the piston away from the return spring, an oil delivery pipe fixedly connected to the bottom of the oil pump, a mounting rod fixedly connected to the bottom of the instrument panel, the bottom of the oil delivery pipe fixedly connected to the outside of the mounting rod, an oil delivery groove provided inside the mounting rod, and an anti-collision mechanism provided outside the instrument panel to prevent damage to the instrument panel when subjected to external impact or falling.
[0006] As a further description of the above technical solution:
[0007] The anti-collision mechanism includes an anti-collision shell, which is fitted over the outside of the instrument panel. Several mounting shells are fixedly connected to the outside of the instrument panel. A compression spring is fixedly connected inside the mounting shell. A limit block is fixedly connected to the side of the compression spring away from the instrument panel. An abutment block is fixedly connected to the side of the limit block away from the compression spring. The abutment block is fixedly connected to the side of the anti-collision shell near the instrument panel on the side away from the limit block.
[0008] As a further description of the above technical solution:
[0009] The bottom of the mounting rod is threaded, and a rubber sleeve is fixedly connected to the outside of the mounting rod.
[0010] As a further description of the above technical solution:
[0011] The piston is slidably connected inside the oil pump, and the side of the oil pump away from the piston is fixedly connected to the back of the instrument panel.
[0012] As a further description of the above technical solution:
[0013] A handle is fixedly connected to the side of the push rod away from the oil pump, and an anti-slip sleeve is fitted over the handle.
[0014] As a further description of the above technical solution:
[0015] One-way valve 1 is fixedly connected to the bottom of the connecting pipe, and one-way valve 2 is fixedly connected to the top of the oil delivery pipe.
[0016] As a further description of the above technical solution:
[0017] The mounting rod has several oil outlet holes at its inner bottom end.
[0018] As a further description of the above technical solution:
[0019] The limiting block is slidably connected inside the mounting shell, and the abutting block penetrates the mounting shell at one end near the anti-collision shell.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when it is necessary to inject oil into the threaded connection at the bottom of the mounting rod, the piston is moved towards the instrument panel inside the oil pump by pushing the push rod with the handle. The return spring is compressed and rebounds to push the piston back. This process is repeated to draw lubricating oil from inside the oil tank and deliver it to the oil trough through the oil pipe. The lubricating oil seeps out from the oil outlet outside the mounting rod to lubricate the threaded connection and prevent rust. This achieves the effect of injecting lubricating oil into the threaded connection through the oil injection mechanism, avoiding rust caused by long-term connection, ensuring the monitoring accuracy of the instrument, and improving the practicality of the device.
[0022] 2. In this utility model, when the instrument panel is impacted by external force or accidentally dropped, the anti-collision shell will be the first to be subjected to force and move towards the instrument panel. The compression spring inside the mounting shell is compressed by the abutment block. The compression spring will dissipate most of the impact force. Afterward, the compression spring rebounds and pushes the anti-collision shell back through the limit block to reset it. This achieves the effect of protecting the instrument panel through the anti-collision mechanism, avoiding damage to the instrument panel due to external force collision or accidental drop, avoiding inconvenience caused by instrument damage, and improving the practicality of the device. Attached Figure Description
[0023] Figure 1 A perspective view of an instrument with an easily replaceable inner core, as proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of an oiling mechanism for an instrument that facilitates the replacement of its inner core, as proposed in this utility model.
[0025] Figure 3 A cross-sectional view of a mounting rod for an instrument whose inner core is easy to replace, as proposed in this utility model.
[0026] Figure 4 A cross-sectional view of an oil pump for an instrument whose inner core is easy to replace, as proposed in this utility model.
[0027] Figure 5 A schematic diagram of an instrument panel for which the inner core of the instrument is easily replaceable, as proposed in this utility model.
[0028] Figure 6 This is a cross-sectional view of the mounting shell of an instrument that facilitates the replacement of its inner core, as proposed in this utility model.
[0029] Legend:
[0030] 1. Instrument panel; 2. Mounting rod; 3. Oil tank; 4. Connecting pipe; 5. Oil pump; 6. Return spring; 7. Piston; 8. Push rod; 9. Handle; 10. Oil supply pipe; 11. Oil supply trough; 12. Oil outlet; 13. One-way valve 1; 14. One-way valve 2; 15. Anti-collision shell; 16. Mounting shell; 17. Compression spring; 18. Limiting block; 19. Abutment block; 20. Rubber sleeve. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an instrument that facilitates the replacement of its inner core, comprising an instrument panel 1. An oil tank 3 is fixedly connected to the back of the instrument panel 1, serving as an oil storage tank. A connecting pipe 4 is fixedly connected to the bottom of the oil tank 3, serving as a connection. An oil pump 5 is fixedly connected to the bottom of the connecting pipe 4, serving as an oil pump. A return spring 6 is fixedly connected inside the oil pump 5, providing elastic force. A piston 7 is fixedly connected to the side of the return spring 6 away from the instrument panel 1, serving as an oil pump. A push rod 8 is fixedly connected to the side away from the return spring 6. The push rod 8 pushes the piston 7. An oil supply pipe 10 is fixedly connected to the bottom of the oil pump 5. The oil supply pipe 10 supplies oil. An installation rod 2 is fixedly connected to the bottom of the instrument panel 1. The installation rod 2 connects and installs the instrument panel 1. The bottom of the oil supply pipe 10 is fixedly connected to the outside of the installation rod 2. An oil supply groove 11 is opened inside the installation rod 2. The oil supply groove 11 supplies oil. An anti-collision mechanism is set on the outside of the instrument panel 1 to prevent damage to the instrument panel 1 when it is hit by external force or dropped.
[0033] Reference Figure 4 - Figure 6The anti-collision mechanism includes an anti-collision shell 15, which protects the instrument panel 1. The anti-collision shell 15 is fitted over the outside of the instrument panel 1. Several mounting shells 16 are fixedly connected to the outside of the instrument panel 1. The mounting shells 16 fix the internal structure. A compression spring 17 is fixedly connected inside the mounting shell 16. The compression spring 17 relieves force. A limit block 18 is fixedly connected to the side of the compression spring 17 away from the instrument panel 1. The limit block 18 prevents the internal structure from falling off. An abutment block 19 is fixedly connected to the side of the limit block 18 away from the compression spring 17. The abutment block 19 connects to the side of the anti-collision shell 15 closest to the instrument panel 1. The bottom of the mounting rod 2 is threaded, and a rubber sleeve 20 is fixedly connected to the outside of the mounting rod 2. The rubber sleeve 20 serves as a seal. The piston 7 is slidably connected inside the oil pump 5. The side of the oil pump 5 away from the piston 7 is fixedly connected to the back of the instrument panel 1. The push rod 8 is fixedly connected to a handle 9 on the side away from the oil pump 5. The handle 9 is covered with an anti-slip sleeve. The bottom of the connecting pipe 4 is fixedly connected to a one-way valve 13, which prevents the lubricating oil from flowing back. The top of the oil supply pipe 10 is fixedly connected to a one-way valve 14, which also prevents the lubricating oil from flowing back. The bottom of the mounting rod 2 has several oil outlet holes 12. The limiting block 18 is slidably connected inside the mounting shell 16. The abutment block 19 penetrates the mounting shell 16 near the end of the anti-collision shell 15.
[0034] Working principle: When it is necessary to inject oil into the threaded connection at the bottom of the mounting rod 2, push the push rod 8 by the handle 9 to move the piston 7 inside the oil pump 5 towards the instrument panel 1. The return spring 6 is compressed and rebounds to push the piston 7 back. This process is repeated to draw lubricating oil from inside the oil tank 3 and deliver it to the oil trough 11 through the oil pipe 10. The lubricating oil seeps out from the oil outlet 12 outside the mounting rod 2 to lubricate the threaded connection and prevent rust.
[0035] When the dashboard 1 is impacted by an external force or accidentally falls, the anti-collision shell 15 will be the first to be subjected to force and move towards the dashboard 1. It will compress the compression spring 17 in the mounting shell 16 through the abutment block 19. The compression spring 17 will dissipate most of the impact force. After that, the compression spring 17 will rebound and push the anti-collision shell 15 back through the limit block 18 to reset it.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An instrument with an easily replaceable inner core, comprising an instrument panel (1), characterized in that: An oil tank (3) is fixedly connected to the back side of the instrument panel (1). A connecting pipe (4) is fixedly connected to the bottom of the oil tank (3). An oil pump (5) is fixedly connected to the bottom of the connecting pipe (4). A return spring (6) is fixedly connected inside the oil pump (5). A piston (7) is fixedly connected to the side of the return spring (6) away from the instrument panel (1). A push rod (8) is fixedly connected to the side of the piston (7) away from the return spring (6). An oil delivery pipe (10) is fixedly connected to the bottom of the oil pump (5). An installation rod (2) is fixedly connected to the bottom of the instrument panel (1). The bottom of the oil delivery pipe (10) is fixedly connected to the outside of the installation rod (2). An oil delivery groove (11) is opened inside the installation rod (2). An anti-collision mechanism is provided on the outside of the instrument panel (1). The anti-collision mechanism is to prevent the instrument panel (1) from being damaged when it is hit by external force or dropped.
2. The instrument and meter with an easily replaceable inner core according to claim 1, characterized in that: The anti-collision mechanism includes an anti-collision shell (15), which is sleeved on the outside of the instrument panel (1). Several mounting shells (16) are fixedly connected to the outside of the instrument panel (1). A compression spring (17) is fixedly connected inside the mounting shell (16). A limit block (18) is fixedly connected to the side of the compression spring (17) away from the instrument panel (1). An abutment block (19) is fixedly connected to the side of the limit block (18) away from the compression spring (17). The abutment block (19) is fixedly connected to the side of the anti-collision shell (15) close to the instrument panel (1) on the side away from the limit block (18).
3. The instrument and meter with an easily replaceable inner core according to claim 1, characterized in that: The bottom of the mounting rod (2) is provided with threads, and a rubber sleeve (20) is fixedly connected to the outside of the mounting rod (2).
4. An instrument with an easily replaceable inner core according to claim 1, characterized in that: The piston (7) is slidably connected inside the oil pump (5), and the side of the oil pump (5) away from the piston (7) is fixedly connected to the back side of the instrument panel (1).
5. An instrument with an easily replaceable inner core according to claim 1, characterized in that: A handle (9) is fixedly connected to the side of the push rod (8) away from the oil pump (5), and an anti-slip sleeve is fitted on the outside of the handle (9).
6. An instrument with an easily replaceable inner core according to claim 1, characterized in that: One-way valve 1 (13) is fixedly connected to the bottom of the connecting pipe (4), and one-way valve 2 (14) is fixedly connected to the top of the oil delivery pipe (10).
7. An instrument with an easily replaceable inner core according to claim 1, characterized in that: The mounting rod (2) has several oil outlet holes (12) at its inner bottom end.
8. An instrument with an easily replaceable inner core according to claim 2, characterized in that: The limiting block (18) is slidably connected inside the mounting shell (16), and the abutment block (19) penetrates the mounting shell (16) at one end near the anti-collision shell (15).