Novel straight pipe pressure test machine

Abstract

The utility model discloses a novel straight pipe pressure test machine, which belongs to the technical field of pipe fitting detection, and comprises a machine body, an inner groove is arranged in the machine body, a jacket seat is arranged in the inner groove, two groups of adjusting assemblies are arranged between the jacket seat and a bottom plate, a cavity is arranged in the jacket seat, a top pressure rod is inserted in an inner connecting pipe, and the top pressure rod is connected with the inner connecting pipe. A piston plate b is fixed to one end of the jacking rod, and a spinning assembly is arranged outside the clamping sleeve base. The straight pipe fitting can be uniformly and symmetrically clamped through the jacking rods extending from multiple directions, so that the straight pipe fitting can be automatically corrected to the center of the clamping sleeve seat and can be stably clamped, and the problem that the end opening of the straight pipe fitting and the plugging piece are deviated and staggered is solved; the operation of aligning the end opening of the straight pipe fitting with the plugging piece in an auxiliary correction mode is omitted, the detection efficiency is effectively improved, the reliability of detection data is improved, the straight pipe fittings with different diameter specifications can be clamped and fixed through the jacking rods stretching out synchronously, and the application range of the whole device is effectively widened.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting testing technology, and in particular to a novel straight pipe pressure testing machine. Background Technology

[0002] During the research and development process of pipe fittings, it is necessary to test the internal pressure bearing capacity of the pipe fittings. The main testing method is to use a pipe fitting pressure testing machine to inject water into the pipe fitting and then squeeze the water to increase the internal water pressure of the pipe fitting, so as to test the maximum pressure bearing capacity of the pipe fitting, check whether there are any leaks on the inner wall of the steel pipe, and ensure the quality of the pipe fittings put into use.

[0003] For example, Chinese Patent Publication No. CN212228601U discloses a rapid pressure testing machine for the inner cavity of a pipe, including a machine body. An exhaust port is provided at the lower end of the machine body. An upper sealing plug is fixedly sleeved on the outside of the exhaust port. A pipe is sleeved on the outside of the upper sealing plug. A lower sealing plug is sleeved on the lower end of the pipe. A water tank is fixedly installed at the lower end of the lower sealing plug. A connecting rod is fixedly installed on the upper end of the water tank. This utility model, through the design of a fixed connection between a clamping plate and a positioning rod, allows the positioning rod to drive the movement of the clamping plate. During pipe installation, simply pull the positioning rod outward, then sleeve the pipe on the outside of the lower sealing plug, and then release the positioning rod. Through the extension and contraction of the spring, the pipe can be clamped and fixed. A cylinder drives the pipe upward, causing the pipe to engage with the upper sealing plug, thus sealing the pipe and completing the pipe installation.

[0004] The above application still has shortcomings. The above application uses an arc-shaped clamp to clamp and fix the pipe. However, the arc-shaped fixing setting of the clamp makes it difficult for the clamp to firmly clamp pipes of different specifications and sizes. At the same time, the clamp clamps the bottom of the pipe, and the clamping and positioning effect of the pipe is not good. This makes it easy for the pipe port and the sealing plug to deviate, requiring manual adjustment and affecting the overall testing efficiency.

[0005] Therefore, it is necessary to provide a new type of straight pipe pressure testing machine to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a novel straight pipe pressure testing machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems: A novel straight pipe pressure testing machine includes a machine body, an inner groove inside the machine body, a jacket seat inside the inner groove, a base plate fixed to the bottom of the inner groove, two sets of adjusting components symmetrically distributed between the jacket seat and the base plate, a cavity inside the jacket seat, an inner pipe extending into the cavity and having open ends fixed to the inner side wall of the jacket seat, multiple inner pipes being provided and equidistantly distributed, a top pressure rod inserted inside the inner pipe, one end of the top pressure rod extending into the jacket seat and the other end of the top pressure rod being fixed with a piston plate b tightly fitted to the inner side wall of the inner pipe, and a spinning assembly communicating with the cavity outside the jacket seat.

[0008] As a further embodiment of this utility model, the spinning assembly includes an outer cylinder fixed to the outer wall of the jacket seat. The outer cylinder is connected to the cavity. A nut sleeve is fixed inside the end of the outer cylinder away from the jacket seat. A threaded rod inserted into the outer cylinder is threadedly connected to the nut sleeve. A piston plate a is fixed at the end of the threaded rod and fits tightly against the inner wall of the outer cylinder.

[0009] As a further embodiment of this utility model, an end plate is fixed on one end of the threaded rod located outside the outer cylinder, and a rubber sleeve is fitted onto the surface of the end plate.

[0010] As a further embodiment of this utility model, a rubber pad is attached and fixed to one end of the top pressure rod facing the center of the jacket seat.

[0011] As a further embodiment of this utility model, the adjusting assembly includes an outer sleeve fixed to the top side of the base plate. There are two outer sleeves, which are symmetrically distributed. An inner connecting rod is fixed to the bottom end of the jacket seat and slidably inserted inside the outer sleeve. A threaded hole is opened on the side of the inner connecting rod. A locking bolt is threadedly connected to the side wall of the outer sleeve, and the locking bolt is threadedly adapted to the threaded hole.

[0012] As a further embodiment of this utility model, multiple threaded holes are provided, and the multiple threaded holes are equidistantly distributed along the length direction of the inner connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By hydraulically and synchronously pushing the piston plates b inside multiple inner pipes to move, multiple top pressure rods are simultaneously extended and clamped and fixed inside the jacket seat. The top pressure rods extending from multiple directions can uniformly and symmetrically clamp the straight pipe, thereby automatically correcting the straight pipe to the center of the jacket seat and firmly clamping it. This eliminates the need for manual adjustment and avoids the problem of misalignment between the straight pipe port and the sealing component. It also eliminates the need for auxiliary correction of the alignment between the straight pipe port and the sealing component, effectively improving the detection efficiency and the reliability of the detection data. At the same time, the synchronously extended top pressure rods can clamp and fix straight pipes of different diameters, effectively improving the applicability and practicality of the overall device.

[0015] 2. The height of the clamping seat can be adjusted by the adjustable components, thereby moving the clamping seat to the middle of straight pipe fittings of different lengths, so that the top pressure rod can always clamp and fix the middle of the straight pipe fitting, ensuring a good clamping effect for straight pipe fittings of different lengths. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the spinning assembly of this utility model;

[0019] Figure 3 This is a partial structural diagram of the rubber pad of this utility model;

[0020] Figure 4 This is a partial structural diagram of the top pressure rod of this utility model;

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Spinning assembly; 101. Outer sleeve; 102. Piston plate a; 103. Threaded rod; 104. Nut sleeve; 105. End plate; 2. Adjusting assembly; 201. Locking bolt; 202. Threaded hole; 203. Outer sleeve; 204. Inner rod; 3. Jacket seat; 4. Inner pipe; 5. Top pressure rod; 6. Piston plate b; 7. Rubber pad; 8. Machine body; 9. Base plate; 10. Inner groove; 11. Cavity. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-5 This utility model provides a novel straight pipe pressure testing machine, including a machine body 8. An inner groove 10 is provided inside the machine body 8, and a jacket seat 3 is provided inside the inner groove 10. A base plate 9 is fixed to the bottom of the inner groove 10. Two sets of adjusting components 2 are symmetrically distributed between the jacket seat 3 and the base plate 9. A cavity 11 is opened inside the jacket seat 3. Multiple inner pipes 4 are fixed to the inner wall of the jacket seat 3, extending into the cavity 11 and open at both ends. These multiple inner pipes 4 are equidistant from each other. The inner tube 4 is fitted with a top pressure rod 5. One end of the top pressure rod 5 extends into the jacket seat 3, and the other end of the top pressure rod 5 is fixed with a piston plate b6 that fits tightly against the inner wall of the inner tube 4. The jacket seat 3 is equipped with a spinning assembly 1 that communicates with the cavity 11. In use, the straight tube to be tested is inserted into the jacket seat 3, and a certain amount of liquid is injected into the cavity 11 through the spinning assembly 1, thereby generating a certain amount of hydraulic pressure inside the cavity 11, which then pushes the tube synchronously. The piston plates b6 inside the multiple inner pipes 4 move, thereby pushing multiple top pressure rods 5 to extend synchronously. The top pressure rods 5 clamp and fix the straight pipe fittings located inside the clamping seat 3. The top pressure rods 5 extending from multiple directions can clamp the straight pipe fittings evenly and symmetrically, thereby automatically correcting the straight pipe fittings to the center of the clamping seat 3 and firmly clamping them. This avoids the problem of misalignment between the straight pipe fitting port and the sealing component, eliminating the need for auxiliary correction to align the straight pipe fitting port with the sealing component, effectively improving detection efficiency and the reliability of detection data. At the same time, the synchronously extending top pressure rods 5 can clamp and fix straight pipe fittings of different diameters, effectively improving the applicability and practicality of the overall device. The height position of the clamping seat 3 can be adjusted by the setting adjustment component 2, thereby moving the clamping seat 3 to the middle of straight pipe fittings of different lengths, so that the top pressure rods 5 can always clamp and fix the middle of the straight pipe fitting, ensuring good clamping effect for straight pipe fittings of different lengths.

[0026] Further as Figure 2 and Figure 4As shown, it is worth noting that the spinning assembly 1 includes an outer cylinder 101 fixed to the outer wall of the jacket 3. The outer cylinder 101 is connected to the cavity 11. A nut sleeve 104 is fixed inside the end of the outer cylinder 101 away from the jacket 3. A threaded rod 103 inserted into the outer cylinder 101 is threadedly connected to the nut sleeve 104. A piston plate a102 that fits tightly against the inner wall of the outer cylinder 101 is fixed to the end of the threaded rod 103. The straight pipe to be tested is inserted into the jacket 3. The cavity 11 and the outer cylinder 101 are filled with liquid, which can be water or hydraulic oil, etc. By rotating the threaded rod 103, the threaded rod 103 drives the piston plate a102 to move inside the outer cylinder 101, thereby pressing the liquid inside the outer cylinder 101 through the piston plate a102. The device is inserted into the cavity 11, thereby hydraulically and synchronously pushing the piston plates b6 inside the multiple inner pipes 4 to move. This causes multiple top pressure rods 5 to extend synchronously and clamp and fix the straight pipe fitting inside the jacket seat 3. The top pressure rods 5 extending from multiple directions can clamp the straight pipe fitting evenly and symmetrically, thereby automatically correcting the straight pipe fitting to the center of the jacket seat 3 and firmly clamping it. This avoids the problem of misalignment between the straight pipe fitting port and the sealing component, eliminating the need for auxiliary correction to align the straight pipe fitting port with the sealing component, effectively improving detection efficiency and the reliability of detection data. At the same time, the synchronously extending top pressure rods 5 can clamp and fix straight pipe fittings of different diameters, effectively improving the applicability of the overall device and enhancing its overall practicality.

[0027] Further as Figure 1 , Figure 4 and Figure 5 As shown, it is worth noting that the adjusting assembly 2 includes an outer sleeve 203 fixed to the top side of the base plate 9. Two outer sleeves 203 are provided and symmetrically distributed. An inner connecting rod 204, which is slidably inserted into the outer sleeve 203, is fixed to the bottom end of the jacket seat 3. A threaded hole 202 is provided on the side of the inner connecting rod 204. A locking bolt 201 is threadedly connected to the side wall of the outer sleeve 203. The locking bolt 201 is threadedly matched with the threaded hole 202. The threaded hole 202 is provided with… Multiple threaded holes 202 are evenly distributed along the length of the inner connecting rod 204. By unscrewing the locking bolt 201, the extension length of the inner connecting rod 204 inside the outer sleeve 203 can be adjusted. Then, by screwing the locking bolt 201 into different threaded holes 202, the height position of the clamping seat 3 can be adjusted, thereby moving the clamping seat 3 to the middle of straight pipe fittings of different lengths. This ensures that the top pressure rod 5 can always clamp and fix the middle of the straight pipe fitting, ensuring a good clamping effect for straight pipe fittings of different lengths.

[0028] This solution involves the following working process: The straight pipe to be tested is inserted into the clamping seat 3. By rotating the threaded rod 103, the threaded rod 103 drives the piston plate a102 to move within the outer sleeve 101. This forces the liquid inside the outer sleeve 101 into the cavity 11 via the piston plate a102. This hydraulically pushes the piston plates b6 inside multiple inner pipes 4 to move, thereby actuating multiple pressing rods 5 to extend synchronously. These pressing rods 5 clamp and fix the straight pipe located inside the clamping seat 3. The top pressure rods 5 extending in multiple directions can clamp the straight pipe fitting evenly and symmetrically, thereby automatically correcting the straight pipe fitting to the center of the clamp seat 3 while firmly clamping the straight pipe fitting; by unscrewing the locking bolt 201, the extension length of the inner connecting rod 204 in the outer sleeve 203 can be adjusted, and then the locking bolt 201 can be screwed into different threaded holes 202, thereby adjusting the height position of the clamp seat 3, thereby moving the clamp seat 3 to the middle of the straight pipe fitting of different lengths, so that the top pressure rods 5 can always clamp and fix the middle of the straight pipe fitting.

[0029] Further as Figure 2 As shown, it is worth noting that an end plate 105 is fixed on one end of the threaded rod 103 located outside the outer sleeve 101, and a rubber sleeve is fitted on the surface of the end plate 105; in actual operation, the threaded rod 103 can be easily rotated through the end plate 105, which facilitates operation.

[0030] Further as Figure 3 As shown, it is worth noting that a rubber pad 7 is fixedly attached to one end of the top pressure rod 5 facing the center of the clamping seat 3. In actual operation, the rubber pad 7 increases the friction between the end of the top pressure rod 5 and the outer wall of the straight pipe, thereby improving the overall clamping stability.

[0031] In summary: By filling the cavity 11 with a certain amount of liquid through the spinning assembly 1, a certain amount of hydraulic pressure is generated inside the cavity 11. This hydraulic pressure synchronously pushes the piston plates b6 inside the multiple inner pipes 4 to move, thereby actuating multiple top pressure rods 5 to extend synchronously. The top pressure rods 5 clamp and fix the straight pipe fitting located inside the jacket seat 3. The top pressure rods 5 extending from multiple directions can uniformly and symmetrically clamp the straight pipe fitting, thereby automatically correcting the straight pipe fitting to the center of the jacket seat 3 while firmly clamping the straight pipe fitting and preventing the straight pipe fitting end from deviating from the sealing component. The device eliminates the need for auxiliary alignment correction between the straight pipe fitting port and the sealing component, effectively improving testing efficiency and the reliability of test data. Simultaneously, the synchronously extending top pressure rod 5 can clamp and fix straight pipe fittings of different diameters, effectively expanding the overall applicability and practicality of the device. The adjustable component 2 allows for adjustment of the height of the clamping seat 3, moving it to the middle of straight pipe fittings of different lengths, ensuring that the top pressure rod 5 can always clamp and fix the straight pipe fitting at its center, guaranteeing good clamping performance for straight pipe fittings of various lengths.

Claims

1. A novel straight pipe pressure testing machine, comprising a machine body, characterized in that, The machine body has an inner groove, and a jacket seat is set inside the inner groove. A base plate is fixed to the bottom of the inner groove. Two sets of adjustment components are symmetrically distributed between the jacket seat and the base plate. The jacket seat has a cavity inside. An inner tube is fixed to the inner side wall of the jacket seat, extending into the cavity and with both ends open. Multiple inner tubes are provided and are equidistantly distributed. A top pressure rod is inserted into the inner tube. One end of the top pressure rod extends into the jacket seat, and the other end of the top pressure rod is fixed with a piston plate b that fits tightly against the inner side wall of the inner tube. A spinning assembly communicating with the cavity is set outside the jacket seat.

2. The novel straight-tube pressure testing machine according to claim 1, characterized in that, The spinning assembly includes an outer cylinder fixed to the outer wall of the jacket seat. The outer cylinder is connected to the cavity. A nut sleeve is fixed inside the end of the outer cylinder away from the jacket seat. A threaded rod inserted inside the outer cylinder is threadedly connected to the nut sleeve. A piston plate a is fixed at the end of the threaded rod and fits tightly against the inner wall of the outer cylinder.

3. The novel straight-tube pressure testing machine according to claim 2, characterized in that, An end plate is fixed to one end of the threaded rod located outside the outer cylinder, and a rubber sleeve is fitted onto the surface of the end plate.

4. The novel straight pipe pressure testing machine according to claim 1, characterized in that, A rubber pad is fixed to one end of the top pressure rod facing the center of the jacket seat.

5. The novel straight pipe pressure testing machine according to claim 1, characterized in that, The adjustment assembly includes an outer sleeve fixed to the top side of the base plate. There are two outer sleeves, which are symmetrically distributed. An inner connecting rod is fixed to the bottom end of the jacket seat and slidably inserted inside the outer sleeve. A threaded hole is opened on the side of the inner connecting rod. A locking bolt is threadedly connected to the side wall of the outer sleeve, and the locking bolt is threadedly adapted to the threaded hole.

6. The novel straight pipe pressure testing machine according to claim 5, characterized in that, The threaded holes are provided in multiple ways, and the multiple threaded holes are distributed at equal intervals along the length direction of the inner connecting rod.

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