PVC pipe production semi-automatic circumference measuring device

Abstract

The utility model discloses a PVC pipe production semi -automatic circumference measuring device, including measuring scale body, measuring scale body includes the winding part of integral structure and the scale part, and the width of winding part is greater than the width of scale part, and the surface of winding part is provided with the through slot away from scale part one end, and the part of measuring scale body corresponds winding part and is curved into the ring and is inserted in the through slot with scale part, winding part and scale part away from the front of end all are fixed with fixed seat, and the horizontal through intercalation of guide rod is inserted in two fixed seats, and the support spring of setting up on the surface of guide rod is set up between two fixed seats. The utility model discloses measuring scale body can guarantee scale part and winding part are located on the circumference of the same position of PVC pipe, avoid the existence of ovality to cause the measurement error, in addition, the design of support spring and guide rod, and the surface of measuring scale body is adhered to the PVC pipe of automatic winding tightly, and it is not necessary to artificially pull, and the semi -automatic effect is realized, and the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of measuring tool technology, specifically a semi-automatic circumference measuring device for PVC pipe production. Background Technology

[0002] PVC pipe, short for polyvinyl chloride pipe, is a type of plastic pipe made by hot-pressing polyvinyl chloride resin with stabilizers, lubricants, and other additives. It features corrosion resistance, acid and alkali resistance, smooth inner wall with low resistance, high mechanical strength, good compressive and tensile strength, and long service life. It is widely used in building water supply and drainage, chemical transportation, power communication, agricultural irrigation, sewage treatment and other fields.

[0003] The circumference of a PVC pipe can be measured directly in the following two ways:

[0004] 1. Use a flexible measuring tape to directly wrap around the tube and read the value;

[0005] 2. Using a ruler and a non-elastic thin thread, wrap the thread around the tube once and then straighten it to measure the length of the thread;

[0006] The first measurement method is relatively simple; the measurement method is as shown in the instruction manual. Figure 4 The method shown is the one most users employ, which is sufficient for rough measurements. However, for enterprise production, the accuracy of measurement is crucial. When using a flexible measuring tape, it cannot be guaranteed that both ends of the tape are on the same circumference of the PVC pipe fitting. Tilting the tape increases ellipticity, which is also affected by the diameter of the PVC pipe fitting, severely impacting measurement accuracy. Large measurement errors directly affect product consistency and damage the company's image and reputation. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a semi-automatic circumference measuring device for PVC pipe production, which solves the problem that errors easily occur when using a flexible ruler to measure the circumference of PVC pipe fittings, affecting the measurement accuracy.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A semi-automatic circumference measuring device for PVC pipe production includes a measuring ruler body. The measuring ruler body includes an integrally structured coiled part and a ruler strip part. The width of the coiled part is greater than the width of the ruler strip part, and a through groove is provided on the surface of the coiled part away from the ruler strip part. The portion of the measuring ruler body corresponding to the coiled part is bent into a ring, and the ruler strip part is inserted through the through groove.

[0010] Both the winding section and the ruler section have fixed seats on their opposite sides. A guide rod is inserted transversely through the two fixed seats. A fixed terminal is fixed to one end of the guide rod corresponding to the ruler section, and a pull-out terminal is fixed to one end of the guide rod corresponding to the winding section. A support spring is provided between the two fixed seats and sleeved on the surface of the guide rod.

[0011] Preferably, the measuring ruler body is a stainless steel ruler strip, and the measuring ruler body has an upper and lower axis symmetrical structure with the through groove located on the axis of symmetry.

[0012] Preferably, the guide rod is positioned corresponding to the axis of symmetry of the measuring ruler body, and scale lines are provided on the front of the ruler strip at the positions corresponding to the upper and lower edges.

[0013] Preferably, the guide rod is a thin, smooth rod, and the support spring is a thin spring. Both the guide rod and the support spring are located between the scale lines on the upper and lower edges of the front side of the ruler strip.

[0014] Preferably, the surface of the pull-out terminal is provided with anti-slip texture.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The measuring ruler of this invention measures by having the coiled part wrap around the PVC pipe and the ruler strip inserted through the slot. This design ensures that the ruler strip and the coiled part are located on the same circumference of the PVC pipe, avoiding measurement errors caused by ellipticity. In addition, the design of the support spring and guide rod automatically tightens the PVC pipe, allowing the measuring ruler to fit snugly against the surface of the PVC pipe without manual pulling, achieving a semi-automatic effect. It is simple and convenient to operate and has strong practicality. Attached Figure Description

[0017] Figure 1 This is a front view of the present utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a schematic diagram of the unfolded measuring ruler body of this utility model;

[0020] Figure 4 This is a schematic diagram showing the state of measurement using a flexible measuring tape.

[0021] In the diagram: 1. Measuring ruler body; 101. Coiling section; 102. Ruler strip section; 103. Through groove; 104. Scale line; 2. Fixing base; 3. Guide rod; 4. Fixing terminal; 5. Pull-out terminal; 6. Support spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] like Figure 1-3 As shown, this utility model provides a technical solution: a semi-automatic circumference measuring device for PVC pipe production, including a measuring ruler body 1, the measuring ruler body 1 being a stainless steel ruler strip, the measuring ruler body 1 having an upper and lower axis symmetrical structure, the measuring ruler body 1 including an integrally structured winding part 101 and a ruler strip part 102, the width of the winding part 101 being greater than the width of the ruler strip part 102.

[0024] A through groove 103 is provided on the surface of the coiled portion 101 opposite to the ruler strip portion 102. The through groove 103 is located on the axis of symmetry of the measuring ruler body 1. The portion of the measuring ruler body 1 corresponding to the coiled portion 101 is bent into a ring, and the ruler strip portion 102 is inserted through and inserted into the through groove 103.

[0025] Both the front of the coiled part 101 and the ruler part 102 are fixed with a fixing seat 2. A guide rod 3 is inserted horizontally through the two fixing seats 2. The guide rod 3 is a thin smooth rod. The guide rod 3 is positioned corresponding to the axis of symmetry of the measuring ruler body 1. Scale lines 104 are provided on the front of the ruler part 102 at the positions corresponding to the upper and lower edges.

[0026] A fixing terminal 4 is fixed to one end of the guide rod 3 corresponding to the ruler strip 102, and a pulling terminal 5 is fixed to one end of the guide rod 3 corresponding to the winding part 101. The surface of the pulling terminal 5 is provided with anti-slip texture. A support spring 6 is provided between the two fixing seats 2 and sleeved on the surface of the guide rod 3. The support spring 6 is a thin spring. The guide rod 3 and the support spring 6 are both located between the scale lines 104 at the upper and lower edges of the front of the ruler strip 102.

[0027] Working principle:

[0028] Hold the coiled part 101 and pull the pull terminal 5. The support spring 6 retracts and the guide rod 3 pulls the ruler part 102 to the left through the through groove 103 and moves it behind the through groove 103, increasing the diameter of the coiled part 101. The coiled part 101 is then placed on the surface of the PVC pipe to be measured, and the ruler part 102 is inserted through the through groove 103 for measurement. This design ensures that the ruler part 102 and the coiled part 101 are located on the same circumference of the PVC pipe, avoiding measurement errors caused by ellipticity. Release the pull terminal 5, and under the action of the support spring 6, the ruler body 1 automatically tightens around the PVC pipe so that it fits against the surface of the PVC pipe without manual pulling. This achieves a semi-automatic effect and is simple and convenient to operate.

Claims

1. A semi-automatic circumference measuring device for PVC pipe production, comprising a measuring ruler body (1), characterized in that: The measuring ruler body (1) includes an integrally structured coiled part (101) and a ruler strip part (102). The width of the coiled part (101) is greater than the width of the ruler strip part (102), and a through groove (103) is provided on the surface of the coiled part (101) away from the ruler strip part (102). The portion of the measuring ruler body (1) corresponding to the coiled part (101) is bent into a ring, and the ruler strip part (102) is inserted through the through groove (103). The front of the opposite ends of the coiled part (101) and the ruler part (102) are both fixed with a fixing seat (2). A guide rod (3) is inserted horizontally through the two fixing seats (2). A fixing terminal (4) is fixed at one end of the guide rod (3) corresponding to the ruler part (102). A pull terminal (5) is fixed at one end of the guide rod (3) corresponding to the coiled part (101). A support spring (6) is provided between the two fixing seats (2) and sleeved on the surface of the guide rod (3).

2. The semi-automatic circumference measuring device for PVC pipe production according to claim 1, characterized in that: The measuring ruler body (1) is a stainless steel ruler strip. The measuring ruler body (1) has an upper and lower axis symmetrical structure and the through groove (103) is located on the axis of symmetry.

3. The semi-automatic circumference measuring device for PVC pipe production according to claim 1, characterized in that: The guide rod (3) is positioned on the axis of symmetry of the measuring ruler body (1), and scale lines (104) are provided on the front of the ruler strip (102) at the positions corresponding to the upper and lower edges.

4. The semi-automatic circumference measuring device for PVC pipe production according to claim 3, characterized in that: The guide rod (3) is a thin smooth rod, and the support spring (6) is a thin spring. The guide rod (3) and the support spring (6) are both located between the scale lines (104) on the upper and lower edges of the front of the ruler part (102).

5. The semi-automatic circumference measuring device for PVC pipe production according to claim 1, characterized in that: The surface of the pull-out terminal (5) is provided with anti-slip texture.

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