Bourdon tube pressure gauge pointer dismounting tool
By designing a spring tube pressure gauge pointer removal tool that includes pointed-nosed pliers, U-shaped fixtures and other components, the existing tool efficiency and parts damage are solved, and an efficient and safe calibration process is achieved.
Patent Information
- Application Number
- CN202421840089.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing spring tube pressure gauge pointer removal tool is inefficient and prone to damage parts, which poses safety hazards.
A disassembly tool including needle nose pliers, U-shaped fixing parts, clamping grooves, adjustment screws, ejectors and ejectors are designed. The thimble is moved and reset by opening and closing of needle nose pliers to avoid damage caused by unreasonable needle removal.
Improves the calibration efficiency of pressure gauge, avoids damage to parts and safety hazards, is easy to operate, simple to structure and zero faults.
Smart Images
Figure CN222857865U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the field of spring tube pressure gauges, in particular to a spring tube pressure gauge pointer disassembly tool. Background technology:
[0002] The bourdon pressure gauge is composed of a bourdon tube, movement, hairspring, connecting rod, pointer, dial, glass, case and other parts. Among them, the pointer is an important part of the indication. During the calibration of the pressure gauge, the zero point often needs to be re-determined due to scale deviation, and the pointer needs to be disassembled. Ordinary tools or unreasonable needle removal methods will cause damage to the dial, movement, and hairspring. Reasonable and effective needle removal can avoid damage to parts and improve efficiency.
[0003] The spring tube pressure gauge is the most commonly used instrument for measuring pressure and is widely used in the measurement system in the industrial production process. In the production system, accurate pressure measurement enables the system to operate smoothly and safely. To accurately measure pressure, the calibration of the pressure gauge plays a decisive role. At present, in the process of pressure gauge calibration, there are two methods for disassembling the pointer: removing the needle by selecting the round top screw and removing the needle by prying with a screwdriver.
[0004] The circular push screw needle removal is relatively convenient to use, but in the process of use, the needle removal efficiency is slow when a large number of pressure gauges are calibrated. At the same time, the thread of the push screw is easily damaged and stripped during frequent rotation. At the same time, because this tool is relatively small, it is not easy to remove the installed and fastened pointer when the rotational force is relatively small.
[0005] The following defects exist in the method of prying with a screwdriver to remove the needle: the pointer is easily deformed, the dial scale is easily damaged, the movement, hairspring and other parts are easily damaged, and there are certain safety hazards.
[0006] Therefore, a disassembly tool that can be easily installed and used is needed. Utility model content:
[0007] The utility model aims to provide a tool for disassembling a pointer of a spring tube pressure gauge.
[0008] The utility model is implemented by the following technical solutions:
[0009] A spring tube pressure gauge pointer disassembly tool comprises needle-nosed pliers, one end of the needle-nosed pliers is sleeved with a U-shaped fixing piece, one side of the U-shaped fixing piece is provided with a mounting groove, one end of the needle-nosed pliers extends into the mounting groove, one side of the mounting groove is provided with a clamping groove, a clamping block is slidably connected in the clamping groove, the top end of the clamping block is rotatably connected with an adjusting screw, the top end of the adjusting screw passes through the U-shaped fixing piece and is threadedly connected thereto, one side of the top end of the U-shaped fixing piece is provided with a slot, a top block is provided below the U-shaped fixing piece, one side of the top end of the top block is fixedly connected with a push rod, the top end of the push rod passes through the U-shaped fixing piece and is slidably connected thereto, the top end of the push rod is fixedly connected with a mounting cylinder, and a push pin is installed in the mounting cylinder through a positioning pin.
[0010] Preferably, a slide groove is provided on one side of the U-shaped fixing piece, a slider is slidably connected in the slide groove, a spring is provided in the slide groove, the top end of the spring is fixedly connected to the top surface in the slide groove, the bottom end of the spring is fixedly connected to the top end of the slider, and one side of the slider is fixedly connected to the side wall of the push rod.
[0011] The advantages of the utility model include: being able to improve the calibration efficiency of the pressure gauge, avoiding damage to other parts and potential safety hazards caused by unreasonable needle removal, having the advantages of simple structure, easy operation, and zero failure, greatly improving the calibration efficiency of the pressure gauge, and being easy to install and disassemble, which can effectively improve the maintenance efficiency. At the same time, when in use, the ejector pin can be moved and reset according to the opening and closing of the needle-nosed pliers, which can be operated more conveniently. Description of the drawings:
[0012] Figure 1 It is a schematic diagram of the structure of the utility model.
[0013] In the figure: needle-nosed pliers 1, U-shaped fixing piece 2, slot 3, ejector block 4, ejector rod 5, mounting tube 6, ejector pin 7, slide groove 8, slider 9, spring 10, mounting groove 11. Specific implementation method:
[0014] like Figure 1As shown, a spring tube pressure gauge pointer removal tool comprises a needle-nosed pliers 1, one end of the needle-nosed pliers 1 is sleeved with a U-shaped fixing piece 2, one side of the U-shaped fixing piece 2 is provided with a mounting groove 11, one end of the needle-nosed pliers 1 extends into the mounting groove 11, one side of the mounting groove 11 is provided with a clamping groove, a clamping block is slidably connected in the clamping groove, the top of the clamping block is rotatably connected with an adjusting screw, the top of the adjusting screw passes through the U-shaped fixing piece 2 and is threadedly connected thereto, a slot 3 is provided on one side of the top of the U-shaped fixing piece 2, a top block 4 is provided below the U-shaped fixing piece 2, and one side of the top of the top block 4 A push rod 5 is fixedly connected, and the top end of the push rod 5 passes through the U-shaped fixing piece 2 and is slidably connected thereto. The top end of the push rod 5 is fixedly connected to a mounting tube 6, and a push pin 7 is installed in the mounting tube 6 through a locating pin. When working, find a pair of needle-nosed pliers 1 at random, and then put the mounting groove 11 at the U-shaped fixing piece 2 on one end of the opening part of the needle-nosed pliers 1, and then rotate the adjusting screw to make the clamping block frictionally clamped with it, so that the whole is fixed. When in use, press the needle-nosed pliers directly to make the push block 4 subject to force, prompting the push rod 5 and the push pin 7 to move accordingly, thereby completing the disassembly work.
[0015] A slide groove 8 is provided on one side of the U-shaped fixing part 2, and a slider 9 is slidably connected in the slide groove 8. A spring 10 is provided in the slide groove 8, and the top end of the spring 10 is fixedly connected to the top surface in the slide groove 8, and the bottom end of the spring 10 is fixedly connected to the top end of the slider 9. One side of the slider 9 is fixedly connected to the side wall of the ejector rod 5. When resetting, the needle-nosed pliers 1 can be directly loosened, so that the ejector block 4 lacks a limit, so that automatic resetting can be achieved by utilizing the elastic force of the spring 10, thereby driving the ejector pin 7 to reset as well.
[0016] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A tool for removing the pointer of a spring tube pressure gauge, characterized in that: The U-shaped fixing part is provided with a top block below the U-shaped fixing part, and a top end of the top block is fixedly connected with a top rod, and the top end of the top rod passes through the U-shaped fixing part and is slidably connected with the top rod, and a mounting tube is fixedly connected to the top end of the top rod, and a top pin is installed in the mounting tube through a positioning pin.
2. A tool for removing the pointer of a spring tube pressure gauge according to claim 1, characterized in that: A slide groove is provided on one side of the U-shaped fixing piece, a slider is slidably connected in the slide groove, a spring is provided in the slide groove, the top end of the spring is fixedly connected to the top surface in the slide groove, the bottom end of the spring is fixedly connected to the top end of the slider, and one side of the slider is fixedly connected to the side wall of the push rod.