Welded flange pressure testing device

Abstract

The utility model relates to the technical field of flange pressure testing, and discloses a welding flange pressure testing device which comprises a main body mechanism and a pressurizing mechanism, the pressurizing mechanism is located above the main body mechanism, the main body mechanism comprises a testing table, a rotating disc and a clamping ring, the rotating disc is movably installed at the inner end of the upper end of the testing table, and the clamping ring is installed on the rotating disc. The clamping ring is fixedly installed at the outer end of the rotating disc, located at the inner end of the test board and movably connected with the test board. The main body mechanism further comprises a gear motor, a supporting rod, a mounting ring, an electric push rod, an arc-shaped clamping plate, a welding flange body and a touch display screen. The gear motor is fixedly mounted in the middle of the lower end of the rotating disc. According to the pressure testing device for the welding flange, by installing the main body mechanism, the welding flange can be conveniently clamped and reinforced, the welding flange can be conveniently driven to rotate, a worker can conveniently check the welding position of the welding flange in all directions, the functionality is improved, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange pressure testing, in particular to a welding flange pressure testing device. Background Technique

[0002] Welding flange connection means fixing two pipes, pipe fittings or equipment on a welding respectively. Between the two weldings, a flange gasket is added and fastened together with bolts to complete the connection. Welding flanges are widely used in fields such as petroleum, chemical industry, natural gas, power stations, and metallurgical pipelines. In order to ensure quality, pressure testing needs to be carried out on the welded parts.

[0003] In the prior art, the patent document with the authorization announcement number CN218725267U discloses a welding flange pressure testing device, including a base, a support table and a pressure cylinder. A support table is fixedly installed at one end close to the upper surface of the base. A pressure cylinder is fixedly installed on the upper surface of the support table. A threaded rocker is movably installed on the rear surface of the support table. A positioning column is arranged at the front end of the support table. A bracket is fixedly installed on the upper surface of the base in front of the support table. A motor is fixedly installed on the upper surface of the base in front of the bracket. A stop frame is fixedly installed on the upper surface of the base in front of the motor. A test piece is embedded between the stop frame and the bracket. A transmission member is fixedly sleeved on the surface of the test piece. For a welding flange pressure testing device of the utility model, through the cooperation of the transmission member, the motor, the stop frame, the support table, the threaded rocker, the positioning column and the pressure cylinder, the compressive tests of different welding positions of the welding flange can be carried out.

[0004] However, when the prior art CN218725267U patent conducts pressure testing on the welding flange, it is not convenient to clamp and reinforce it, not convenient to drive the welding flange to rotate, not convenient for the staff to view the welded part of the welding flange from all directions, reducing the functionality and practicality. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a welding flange pressure testing device to solve the problem that it is not convenient to clamp and reinforce the welding flange during pressure testing as mentioned in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions: A welding flange pressure testing device, including a main body mechanism and a pressurizing mechanism. The pressurizing mechanism is located above the main body mechanism. The main body mechanism includes a test bench, a rotating disk and a clamping ring. The rotating disk is movably installed at the inner end of the upper end of the test bench, and the clamping ring is fixedly installed at the outer end of the rotating disk. The clamping ring is located at the inner end of the test bench, and the clamping ring is movably connected to the test bench;

[0009] The main body mechanism further includes a reduction motor, a support rod, an installation ring, an electric push rod, an arc-shaped clamping plate, a welding flange body and a touch display screen. The reduction motor is fixedly installed in the middle of the inner end of the test bench, and the transmission end of the reduction motor is fixedly connected to the rotating disk. The support rod is fixedly installed at the upper end of the rotating disk, and the installation ring is fixedly installed at the upper end of the support rod. The electric push rod is fixedly installed inside the installation ring, and the arc-shaped clamping plate is fixedly installed in the middle of the transmission end of the electric push rod. The welding flange body is movably installed at the upper end of the rotating disk, and the welding flange body is movably connected to the arc-shaped clamping plate. The touch display screen is fixedly installed in the middle of the front end of the test bench.

[0010] Preferably, the pressurizing mechanism includes a support plate, a groove, a positioning groove, a synchronous motor, a lead screw, a positioning nut, a connecting plate, a positioning block, a fixing plate, a hydraulic cylinder, a pressing plate, a sealing ring, a pressure sensor, a universal wheel and a foot brake. The support plate is fixedly installed at the left and right ends of the upper end of the test bench, and the groove is fixedly arranged at the inner end of the support plate, improving the practicability.

[0011] Preferably, the positioning groove is fixedly arranged at the front and rear ends of the groove, and the synchronous motor is fixedly installed in the middle of the upper end of the support plate. The transmission end of the synchronous motor extends into the groove, facilitating the simultaneous rotation of the lead screws on both sides.

[0012] Preferably, the lead screw is fixedly installed at the lower end of the transmission end of the synchronous motor, the positioning nut is threadedly installed on the outer end of the lead screw, the connecting plate is fixedly installed on the outer end of the positioning nut, and the positioning blocks are fixedly installed at the front and rear ends of the connecting plate, facilitating the downward movement of the connecting plate and returning to the original position after the test is completed, which is convenient for the staff to place other welding flanges for pressure testing.

[0013] Preferably, the positioning blocks are located inside the positioning grooves, and the positioning blocks are movably connected to the positioning grooves. The fixing plate is fixedly installed in the middle of the connecting plate, and the hydraulic cylinder is fixedly installed in the middle of the lower end of the fixing plate, facilitating the improvement of the stability of the downward movement of the fixing plate and the connecting plate.

[0014] Preferably, the pressing plate is fixedly installed at the lower end of the transmission end of the hydraulic cylinder, the sealing ring is fixedly installed at the lower end of the pressing plate, the pressure sensor is fixedly installed in the middle of the lower end of the pressing plate, the universal wheels are fixedly installed at the lower end of the test bench, and the foot brake is movably installed at the left end of the universal wheels. The sealing ring facilitates improving the sealing performance of the connection between the pressing plate and the welding flange body, facilitating the pressure sensor to transmit the pressure test to the touch display screen, and the universal wheels facilitate the staff to move the device to the welding flange storage place for pressure detection.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. For this welding flange pressure testing device, by installing the main body mechanism, it is convenient to clamp and reinforce the welding flange, convenient to drive the welding flange to rotate, convenient for the staff to view the welding part of the welding flange from all directions, improving functionality and practicality;

[0017] 2. For this welding flange pressure testing device, by installing the pressurizing mechanism, the sealing ring facilitates improving the sealing performance of the connection between the pressing plate and the welding flange body, facilitating the pressure sensor to transmit the pressure test to the touch display screen, the positioning block and the positioning groove facilitate improving the stability of the downward movement of the fixing plate and the connecting plate, and the universal wheels facilitate the staff to move the device to the welding flange storage place for pressure detection. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a partial structural schematic diagram of the main body mechanism of the present utility model;

[0020] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0021] Figure 4 is a partial structural schematic diagram of the pressurizing mechanism of the present utility model Figure 1

[0022] Figure 5 is a partial structural schematic diagram of the pressurizing mechanism of the present utility model Figure 2 .

[0023] In the figure: 1. Main body mechanism; 101. Test bench; 102. Rotary disk; 103. Snap ring; 104. Reducing motor; 105. Support rod; 106. Mounting ring; 107. Electric push rod; 108. Arc-shaped clamping plate; 109. Welding flange body; 110. Touch display screen; 2. Pressurizing mechanism; 201. Support plate; 202. Groove; 203. Positioning groove; 204. Synchronous motor; 205. Lead screw; 206. Positioning nut; 207. Connecting plate; 208. Positioning block; 209. Fixed plate; 210. Hydraulic cylinder; 211. Pressure plate; 212. Sealing ring; 213. Pressure sensor; 214. Universal wheel; 215. Foot brake. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution: a welding flange pressure testing device, including a main body mechanism 1 and a pressurizing mechanism 2. The pressurizing mechanism 2 is located above the main body mechanism 1. The main body mechanism 1 includes a test bench 101, a rotary disk 102 and a snap ring 103. The rotary disk 102 is movably installed at the inner end of the upper end of the test bench 101, and the snap ring 103 is fixedly installed at the outer end of the rotary disk 102. The snap ring 103 is located at the inner end of the test bench 101, and the snap ring 103 is movably connected to the test bench 101;

[0026] The main body mechanism 1 further includes a reducing motor 104, a support rod 105, a mounting ring 106, an electric push rod 107, an arc-shaped clamping plate 108, a welding flange body 109 and a touch display screen 110. The reducing motor 104 is fixedly installed in the middle of the inner end of the test bench 101, and the transmission end of the reducing motor 104 is fixedly connected to the rotary disk 102. The support rod 105 is fixedly installed at the upper end of the rotary disk 102, the mounting ring 106 is fixedly installed at the upper end of the support rod 105, the electric push rod 107 is fixedly installed inside the mounting ring 106, the arc-shaped clamping plate 108 is fixedly installed in the middle of the transmission end of the electric push rod 107, the welding flange body 109 is movably installed at the upper end of the rotary disk 102, the welding flange body 109 is movably connected to the arc-shaped clamping plate 108, and the touch display screen 110 is fixedly installed in the middle of the front end of the test bench 101.

[0027] The pressing mechanism 2 includes a support plate 201, a groove 202, a positioning groove 203, a synchronous motor 204, a lead screw 205, a positioning nut 206, a connecting plate 207, a positioning block 208, a fixing plate 209, a hydraulic cylinder 210, a pressing plate 211, a sealing ring 212, a pressure sensor 213, a universal wheel 214 and a foot brake 215. The support plate 201 is fixedly installed at the left and right ends of the upper end of the test bench 101. The groove 202 is fixedly arranged at the inner end of the support plate 201. The positioning groove 203 is fixedly arranged at the front and rear ends of the groove 202. The synchronous motor 204 is fixedly installed in the middle of the upper end of the support plate 201. The transmission end of the synchronous motor 204 extends into the interior of the groove 202. The lead screw 205 is fixedly installed at the lower end of the transmission end of the synchronous motor 204. The positioning nut 206 is threadedly installed at the outer end of the lead screw 205. The connecting plate 207 is fixedly installed at the outer end of the positioning nut 206. The positioning blocks 208 are fixedly installed at the front and rear ends of the connecting plate 207. The positioning blocks 208 are located at the inner end of the positioning groove 203. The positioning blocks 208 are movably connected to the positioning groove 203. The fixing plate 209 is fixedly installed in the middle of the connecting plate 207. The hydraulic cylinder 210 is fixedly installed in the middle of the lower end of the fixing plate 209. The pressing plate 211 is fixedly installed at the lower end of the transmission end of the hydraulic cylinder 210. The sealing ring 212 is fixedly installed at the lower end of the pressing plate 211. The pressure sensor 213 is fixedly installed in the middle of the lower end of the pressing plate 211. The universal wheels 214 are fixedly installed at the lower end of the test bench 101. The foot brake 215 is movably installed at the left end of the universal wheel 214. The device can be moved to the storage place of the welded flange body 109 through the universal wheels 214, saving the steps of carrying the welded flange body 109. The electric push rod 107 pushes the arc-shaped clamping plate 108 to clamp and fix the welded flange body 109, facilitating the subsequent pressure detection work. The reduction motor 104 drives the welded flange body 109 to rotate slowly through the rotating disk 102, facilitating a comprehensive view of whether there are obvious problems at the welding joints of the welded flange body 109. The synchronous motor 204 drives the connecting plate 207 and the fixing plate 209 to move up and down through the lead screw 205 and the positioning nut 206, facilitating the subsequent placement and removal of the welded flange body 109. The hydraulic cylinder 210 pushes the pressing plate 211 and the sealing ring 212 to move downward to squeeze the air inside the welded flange body 109, thereby conducting a pressure test. The touch display screen 110 displays the test information through the pressure sensor 213, facilitating the viewing of the pressure test data.

[0028] Working principle: First, when using the welding flange pressure testing device, the staff moves the device to the storage place of the welding flange body 109 through the universal wheels 214, which facilitates the staff to conduct pressure tests on the welding flange body 109. Then, the staff steps on the foot brake 215 to fix the universal wheels 214. The staff places the welding flange body 109 into the mounting ring 106 on the rotating disk 102. The electric push rod 107 pushes the arc-shaped clamping plate 108 to clamp and fix the welding flange body 109, preventing the welding flange body 109 from shifting during the test. Then, the reduction motor 104 drives the rotating disk 102 and the welding flange body 109 to rotate slowly, facilitating the inspectors to view all aspects of the welding part of the welding flange body 109. The synchronous motor 204 drives the lead screw 205 to rotate. The lead screw 205 drives the positioning nut 206 to move downward. The positioning nut 206 drives the connecting plate 207 and the fixing plate 209 to move downward to a suitable position. The positioning block 208 follows the fixing plate 209 and moves in the positioning groove 203, improving the stability of the downward movement of the fixing plate 209 and the connecting plate 207. Then, the hydraulic cylinder 210 pushes the pressure plate 211 and the sealing ring 212 to move downward into the welding flange body 109 to squeeze the air. The sealing ring 212 improves the sealing performance of the connection between the pressure plate 211 and the welding flange body 109. The pressure sensor 213 transmits the test information to the touch display screen 110, facilitating the staff to view the pressure test data.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than limiting the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A welding flange pressure testing device, comprising a main body (1) and a pressurizing mechanism (2), characterized in that: The pressurizing mechanism (2) is located above the main mechanism (1); the main mechanism (1) comprises a test bench (101), a rotating disk (102) and a snap ring (103); the rotating disk (102) is movably mounted on the inner end of the upper end of the test bench (101); the snap ring (103) is fixedly mounted on the outer end of the rotating disk (102); the snap ring (103) is located on the inner end of the test bench (101); and the snap ring (103) is movably connected to the test bench (101); The main body mechanism (1) further comprises a reduction motor (104), a support rod (105), a mounting ring (106), an electric push rod (107), an arc-shaped clamping plate (108), a welding flange body (109) and a touch screen (110), wherein the reduction motor (104) is fixedly mounted at the middle of the inner end of the test bench (101), the transmission end of the reduction motor (104) is fixedly connected to the rotating disk (102), the support rod (105) is fixedly mounted at the upper end of the rotating disk (102), and the mounting ring (106) is fixedly mounted at the upper end of the rotating disk (102). The mounting ring (106) is fixedly mounted on the upper end of the support rod (105), the electric push rod (107) is fixedly mounted inside the mounting ring (106), the arc-shaped clamping plate (108) is fixedly mounted on the middle of the transmission end of the electric push rod (107), the welding flange body (109) is movably mounted on the upper end of the rotating disk (102), the welding flange body (109) is movably connected to the arc-shaped clamping plate (108), and the touch display screen (110) is fixedly mounted on the middle of the front end of the test bench (101).

2. A welding flange pressure testing device according to claim 1, characterized in that: The pressurizing mechanism (2) comprises a support plate (201), a groove (202), a positioning groove (203), a synchronous motor (204), a screw rod (205), a positioning nut (206), a connecting plate (207), a positioning block (208), a fixing plate (209), a hydraulic cylinder (210), a pressing plate (211), a sealing ring (212), a pressure sensor (213), a universal wheel (214) and a foot brake (215); the support plate (201) is fixedly mounted on the left and right ends of the upper end of the test bench (101); and the groove (202) is fixedly arranged at the inner end of the support plate (201).

3. A welding flange pressure testing device according to claim 2, characterized in that: The positioning grooves (203) are fixedly arranged at the front and rear ends of the groove (202), the same-frequency motor (204) is fixedly mounted at the middle of the upper end of the support plate (201), and the transmission end of the same-frequency motor (204) extends into the interior of the groove (202).

4. A welding flange pressure testing device according to claim 3, characterized in that: The screw rod (205) is fixedly mounted on the lower end of the transmission end of the same frequency motor (204), the positioning nut (206) is threadedly mounted on the outer end of the screw rod (205), the connecting plate (207) is fixedly mounted on the outer end of the positioning nut (206), and the positioning block (208) is fixedly mounted on the front and rear ends of the connecting plate (207).

5. A welding flange pressure testing device according to claim 4, characterized in that: The positioning block (208) is located at the inner end of the positioning groove (203), the positioning block (208) is movably connected to the positioning groove (203), the fixing plate (209) is fixedly mounted in the middle of the connecting plate (207), and the hydraulic cylinder (210) is fixedly mounted in the middle of the lower end of the fixing plate (209).

6. A welding flange pressure testing device according to claim 5, characterized in that: The pressure plate (211) is fixedly mounted on the lower end of the transmission end of the hydraulic cylinder (210), the sealing ring (212) is fixedly mounted on the lower end of the pressure plate (211), the pressure sensor (213) is fixedly mounted on the middle part of the lower end of the pressure plate (211), the universal wheel (214) is fixedly mounted on the lower end of the test bench (101), and the foot brake (215) is movably mounted on the left end of the universal wheel (214).

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