A tool for drawing three color markings on a pressure gauge

Abstract

The utility model provides a kind of tool for drawing pressure gauge three-color mark, it is related to engineering equipment technical field, solve the problem that deviation often appears when existing pressure gauge production will not pre-mark red line area, operator manual paste drawing, the utility model discloses a support block, main heart pole, line drawing rod, the main heart pole and line drawing rod are connected respectively in the bottom surface both sides of support block, the main heart pole is built-in pen head downward laser pen, the main heart pole bottom is connected with suction cup by live axle swing joint, the lower end of line drawing rod is provided with paintbrush buckle, the paintbrush buckle is detachably connected with paintbrush, the line drawing rod in the upper portion of paintbrush buckle is built-in adjustable angle adjusting spring, the utility model has the beneficial effects that: the working efficiency and accuracy of drawing three-color mark can be significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering equipment technology, specifically to a tool for drawing three-color markings on pressure gauges. Background Technology

[0002] According to Article 9.2.1.2 of TSG 21-2016, pressure gauges must be calibrated before installation, and the working pressure must be marked with a red line on the dial. For pressure gauges with different operating conditions and ranges, the operating pressure varies, and the marked over-limit, alarm, and normal ranges also differ. Pressure gauge manufacturers do not pre-mark the red line areas during production; operators manually mark them, often resulting in inaccuracies. Utility Model Content

[0003] The purpose of this invention is to solve the problem that existing pressure gauges do not pre-mark red lines during production, and operators often make deviations when manually marking them.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A tool for drawing three-color markings on a pressure gauge, characterized in that it includes a support block, a main rod, and a drawing rod. The main rod and the drawing rod are respectively connected to the two sides of the bottom surface of the support block. The main rod has a built-in laser pointer with the pen tip pointing downwards. A suction cup is movably connected to the bottom of the main rod via a movable shaft. A pen clip is provided at the lower end of the drawing rod. A pen is detachably connected to the pen clip. An adjustable spring with an adjustable angle is built into the drawing rod above the pen clip.

[0006] A further improvement is that the vertical center of the movable shaft and the suction cup has an opening for the laser pointer to pass through.

[0007] A further improvement is that a switch slot is provided on the front of the main rod, and the laser pointer switch of the laser pointer extends out of the switch slot.

[0008] A further improvement is that a battery slot is provided on the back of the main rod, and the battery of the laser pointer is installed in the battery slot.

[0009] A further improvement is that a handle is connected to the upper end of the support block.

[0010] A further improvement is that an adjustment screw is provided on one side of the front of the paintbrush clip.

[0011] A further improvement is that the movable shaft is a 360° movable shaft.

[0012] The above technical solution has the following advantages compared with the existing technology: First, the pressure gauge pointer axis is positioned with a laser pointer and then the center is fixed by a suction cup. The upper part of the suction cup can be rotated 360° by a movable shaft. After the main rod is fixed, the pen is fixed on the pen clip of the drawing rod. The pen draws the markings around the pressure gauge by the principle of a compass. The pen can be changed by turning the clip adjustment screw to mark the three-color mark, distinguishing the over-limit area, alarm area and normal area. This can significantly improve the work efficiency and accuracy of drawing the three-color mark. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0015] Fig. 2 This is a schematic diagram of the rear structure of this utility model;

[0016] Fig. 3 This is a schematic diagram of the structure of the movable shaft and suction cup in this utility model.

[0017] Explanation of reference numerals in the attached diagram: 1. Handle; 2. Support block; 3. Main rod; 4. Pivot shaft; 5. Suction cup; 6. Laser pointer; 61. Switch slot; 62. Battery slot; 7. Drawing rod; 8. Pen clip; 9. Clip adjustment screw; 9. Adjustment spring. Detailed Implementation

[0018] See Figs. 1-3 As shown, the technical solution adopted in this specific embodiment is: a tool for drawing three-color markings on a pressure gauge, including a support block 2, a main rod 3, and a drawing rod 7. The main rod 3 and the drawing rod 7 are respectively connected to the two sides of the bottom surface of the support block 2. The main rod 3 has a built-in laser pen 6 with the pen tip pointing downwards. The bottom of the main rod 3 is movably connected to a suction cup 5 through a movable shaft 4. The lower end of the drawing rod 7 is provided with a pen clip 8. The pen clip 8 is detachably connected to a pen. The upper part of the drawing rod 7 of the pen clip 8 has a built-in adjustable spring with an adjustable angle.

[0019] The movable shaft 4 and the suction cup 5 have an opening in the vertical center for the laser from the laser pointer 6 to pass through.

[0020] The main rod 3 has a switch slot 61 on its front side, and the laser pointer switch of the laser pointer 6 extends out of the switch slot 61.

[0021] The back of the main rod 3 is provided with a battery slot 62, and the battery of the laser pointer 6 is installed in the battery slot 62.

[0022] The upper end of the support block 2 is connected to a handle 1.

[0023] The paintbrush clip 8 has a clip adjustment screw 9 on one side of its front.

[0024] The movable shaft 4 is a 360° movable shaft.

[0025] The design of the main rod 3, the live shaft 4, and the suction cup is approximately 142 mm high. The built-in adjusting spring of the marking rod 7 has a 30° adjustable range. When the angle is not adjusted, the distance between the two rods is approximately 40 mm, which can mark circular pressure gauges with a radius of approximately 40 to 78.55 mm. The dial of a conventional pressure gauge is approximately circular with a radius of 50 mm.

[0026] The working principle of this utility model is as follows: When in use, first use a laser pointer to position the axis of the pressure gauge pointer, and then fix the center with a suction cup. The upper part of the suction cup is connected by a pivot to ensure 360° rotation. After fixing the main rod, fix the pen on the pen clip of the drawing rod. Using the principle of a compass, the pen draws a mark around the pressure gauge. The pen can be changed by turning the clip adjustment screw to mark three-color markings to distinguish the over-limit area, alarm area, and normal area.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A tool for drawing three-color markings on a pressure gauge, characterized in that: The device includes a support block, a main rod, and a drawing rod. The main rod and the drawing rod are respectively connected to the two sides of the bottom surface of the support block. The main rod has a built-in laser pointer with the pen tip pointing downwards. The bottom of the main rod is movably connected to a suction cup via a movable shaft. The lower end of the drawing rod is provided with a pen clip, and a pen is detachably connected to the pen clip. The drawing rod above the pen clip has a built-in adjustable spring with an adjustable angle.

2. The tool for drawing three-color markings on a pressure gauge according to claim 1, characterized in that: The movable shaft and suction cup have an opening in the vertical center for the laser pointer to pass through.

3. The tool for drawing three-color markings on a pressure gauge according to claim 1, characterized in that: The front of the main rod is provided with a switch slot, and the laser pointer switch of the laser pointer extends out of the switch slot.

4. The tool for drawing three-color markings on a pressure gauge according to claim 1, characterized in that: A battery slot is provided on the back of the main rod, and the battery of the laser pointer is installed in the battery slot.

5. The tool for drawing three-color markings on a pressure gauge according to claim 1, characterized in that: A handle is connected to the upper end of the support block.

6. The tool for drawing three-color markings on a pressure gauge according to claim 1, characterized in that: The brush clip has an adjustment screw on one side of its front.

7. The tool for drawing three-color markings on a pressure gauge according to claim 1, characterized in that: The movable shaft is a 360° movable shaft.

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