CN201666430U - Special protractor for making pipe elbows - Google Patents

Abstract

The utility model belongs to the technical field of measuring tools for delivery pipe maintenance, is particularly relates to a special angle gauge for manufacturing a pipeline elbow, and is characterized by consisting of a left support rod, a right support rod, a pipe diameter measuring device which is respectively and slidably connected with the left and the right support rods, a pointer fixed on a rotating shaft and an angle index disc fixed on the left end of the left support rod, wherein the circle center of the angle index disc is arranged at the circle center of the rotating shaft, and a limit pin is respectively arranged at both the left end of the left support rod and the right end of the right support rod. Length scales are arranged on both the left and the right support rods. The pipe diameter measuring device consists of a sleeve, three screws and a movable claw, and radial length scales are arranged on the screws. The movable claw consists of an adjustable nut, a connection sleeve and a jack catch. The utility model has the advantages of convenient measuring, accuracy, material conservation, quick maintenance and lower production cost.

Description

Special protractor for making pipe elbows

technical field

The utility model belongs to the technical field of measuring tools for maintenance of conveying pipelines, in particular to a special protractor for making pipeline elbows.

Background technique

In enterprises that need a large number of pipelines to transport products, various pipelines and elbows connecting pipelines need regular maintenance, especially elbows are vulnerable parts with high resistance. Due to the continuous erosion of the medium and the pressure inside the pipe , the pipe wall of its elbow is often thinned and leaked. The on-site repair procedure is: measure the size of the damaged part (bend pipe) → make the parts to be replaced on site according to the measured size → install (weld) the parts. Because the repaired elbows are often installed at irregular angles in the original construction. Therefore, in the absence of special measuring tools, it is difficult to measure the angle accurately. It can only be measured by several commonly used measuring tools, and then refer to the measurement results and make elbows based on experience. In this way, the elbows made during installation often need to be constantly Correction, constantly trying to dock, resulting in difficult maintenance, long construction period, waste of materials and labor.

Contents of the invention

The purpose of this utility model is to provide a special protractor for making pipe elbows, which can conveniently and accurately measure the bending angle of the pipe to be replaced on site, so that the maintenance of the pipe is faster and more convenient.

The purpose of this utility model is to realize in the following ways:

The special protractor for making pipeline elbows of the utility model is characterized in that the right end is provided with the left support rod of the rotating shaft, and the right supporting rod connected with the rotating shaft of the left supporting rod is connected with the left supporting rod and the right supporting rod respectively. The pipe diameter measuring device connected by sliding rods, the pointer fixed on the rotating shaft, and the angle scale disc fixed on the left end of the right pole, the center of the angle scale disc is set at the center of the rotating shaft On the center of the circle, the left end of the left support rod and the right end of the right support rod are both provided with limit pins.

Both the left and right poles are provided with length scales.

The pipe diameter measuring device is composed of a casing that is slidably connected to the left support rod and the right support rod respectively, three screw rods that are evenly distributed on the outer surface of the casing pipe, and moving claws that are respectively arranged on the three screw rods , the said screw is provided with a radial length scale.

The moving claw is composed of an adjusting nut threadedly connected with the screw rod, a connecting sleeve abutting against both ends of the adjusting nut and sleeved on the screw rod, and a claw fixedly connected with the connecting sleeve.

Using method and advantage of the present utility model are:

First cut off the elbow that needs to be replaced, use the utility model to adjust the screw rod according to the scale to the radius value of the pipe diameter according to the size of the original pipe diameter, and then use the claws to cover the original pipe to be connected to the elbow, evenly Rotate the adjustment nut to make its claws clamp the pipeline. The adjustment method at both ends is the same. At this time, the angle value displayed by the pointer on the angle scale disc is the angle value of the bent pipe to be processed. The scales on the left and right poles are The value shows the elbow straight length value.

The utility model can realize the measurement of the angle of the bent pipe with irregular angles, and the measured value is accurate, and at the same time, the length value of both ends of the bent pipe can be obtained, which effectively shortens the maintenance time, reduces the labor intensity of workers, and saves raw materials.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model.

Accompanying drawing 2 is the A-A sectional view of Fig. 1 of the present utility model.

Accompanying drawing 3 is the B direction view of Fig. 1 of the present utility model.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing.

As shown in Figures 1 and 2, the special protractor for making pipeline elbows of the present utility model is characterized in that the left pole 1 is provided with a rotating shaft 6 at the right end, and the right branch rotatably connected with the rotating shaft 6 of the left pole 1 Rod 8, a pipe diameter measuring device that is slidably connected to the left pole 1 and the right pole 8, the pointer 5 fixed on the rotating shaft 6, and the angle scale disk fixed on the left end of the right pole 8 7, the center of the angle scale disk 7 is set on the center of the rotating shaft 6, and the left end of the left pole 1 and the right end of the right pole 8 are both provided with a limit pin 9. The pointer fixed on the left pole can be set parallel to the longitudinal center line of the left pole, or can form an angle with it, and the angle scale disc 7 fixed on the right pole 8 is a semi-disc with a measurement range of 180 ^o , the end scale line on this semi-disc can be set parallel to the longitudinal center line of the right support rod, or can form an angle with it, but the angle formed by the longitudinal center line of the left support rod and the pointer must be equal to that on the half disc. The angle formed by the scale line at the end and the longitudinal center line of the right strut.

Both the left strut 1 and the right strut 8 are provided with length scales, and the length of the elbow can be determined by reading the scale values.

The pipe diameter measuring device consists of a casing 2 which is slidingly connected with the left strut 1 and the right strut 8, and three screw rods 3 which are evenly distributed on the outer surface of the casing 2 are arranged on the three screw rods 3 respectively. Composed of moving claws 4, the screw rod 3 is provided with a radial length scale.

As shown in Figures 1 and 3, the moving claw 4 is threadedly connected with the screw rod 3 by the adjustment nut 4-2, which abuts against the two ends of the adjustment nut 4-2 and is sleeved on the screw rod 3. The connection sleeve 4-1 on the top is composed of the claw 4-3 fixedly connected with this connection sleeve.

The utility model has the advantages of simple structure, high on-site practical value, material saving, fast maintenance and reduced production cost.

Claims (4)

1. A special protractor for making pipeline elbows, characterized in that the right end is provided with a left pole with a rotating shaft, and the right pole connected with the rotating shaft of the left pole is connected with the left pole and the right pole respectively The pipe diameter measuring device connected by sliding rods, the pointer fixed on the rotating shaft, and the angle scale disc fixed on the left end of the right pole, the center of the angle scale disc is set at the center of the rotating shaft On the center of the circle, the left end of the left support rod and the right end of the right support rod are both provided with limit pins. 2. The special protractor for making pipeline elbows according to claim 1, characterized in that the left and right poles are provided with length scales. 3. The special protractor for making pipeline elbows according to claim 1, characterized in that the pipe diameter measuring device is composed of sleeves that are respectively slidably connected to the left pole and the right pole, and are evenly distributed on the sleeves The three screw rods on the outer surface are composed of moving claws respectively arranged on the three screw rods, and the radial length scales are arranged on the said screw rods. 4. The special protractor for making pipeline elbows according to claim 1, characterized in that the moving claw is connected to the two ends of the adjusting nut by an adjusting nut threadedly connected with the adjusting nut and fitted The connecting sleeve on the screw rod is composed of claws fixedly connected with the connecting sleeve.

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