Automatic pressure testing machine for sheet-type ball valves

Abstract

The present invention relates to the technical field of a chip-type ball valve pressure tester, and in particular to an automatic chip-type ball valve pressure tester, comprising a workbench, wherein the four corners of the bottom of the workbench are connected with a shock absorbing mechanism. The pressure on the valve plate is sensed by a pressure sensor, and the pressure sensor converts the signal through a signal conversion and transmission module and transmits it to a control module. The control module controls the hydraulic cylinder through an oil cylinder drive module, and the synchronous control module transmits the obtained pressure data to an external computer, thereby realizing the timely collection of pressure data and the control of pressure, without the need to manually adjust the oil cylinder pressure and manually record the inspection data, and reducing the work intensity of the staff; by setting a first arc-shaped shielding cover and a second circular arc-shaped shielding cover, the working area is shielded, and the chip-type valve ball test piece is prevented from slipping off the circular shelf, thereby shielding and protecting the working area.

Description

Technical Field

[0001] The invention relates to the technical field of a sheet-type ball valve pressure testing machine, in particular to an automatic sheet-type ball valve pressure testing machine. Background Art

[0002] The disc ball valve is an important control component in the fluid conveying pipeline system. Carrying out quality inspection on it before entering the warehouse is a key link in product quality control during the procurement process.

[0003] At present, most valve inspection institutions use traditional inspection equipment with a low degree of automation. They rely on pointer pressure gauge display, electric contact pressure gauge semi-automatic control, manual adjustment of cylinder pressure, and manual recording of inspection data. This leads to high labor intensity and low efficiency in inspection, which cannot meet the requirements of large-scale batch inspection. In addition, during processing, the piece-type valve ball test piece may slip and lack barrier protection for the working area. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that most valve inspection mechanisms currently use traditional inspection equipment with a low degree of automation, relying on pointer pressure gauge display, electric contact pressure gauge semi-automatic control, manual adjustment of cylinder pressure, and manual recording of inspection data, resulting in high labor intensity in inspection, and the possibility of slipping of the chip valve ball test piece during processing, and lack of barrier protection for the working area. An automatic pressure testing machine for a chip ball valve is proposed.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an automatic pressure testing machine for a disc-type ball valve, comprising a workbench, wherein the four corners of the bottom of the workbench are connected to shock-absorbing mechanisms, a circular shelf is fixedly connected to the middle position of the top of the workbench, a valve sheet is placed on the top of the circular shelf, a pressure sensor is embedded in the side position of the bottom of the circular shelf, a control device is fixedly connected to the side of the workbench, an L-shaped fixing frame is fixedly connected to the top of the workbench at the rear edge, a hydraulic cylinder is fixedly connected to the top of the L-shaped fixing frame, a pressing end is fixedly connected to the bottom of the output rod of the hydraulic cylinder, an L-shaped fixing plate is fixedly connected to one side of the top of the workbench, a first arc-shaped shielding cover is fixedly connected to the rear end of the inner bottom of the L-shaped fixing plate, and a second arc-shaped shielding cover is rotatably connected to the front end of the inner bottom of the L-shaped fixing plate through an elastic reset mechanism.

[0006] The shock absorbing mechanism includes a supporting leg, which is fixedly connected to the corner of the bottom of the workbench, and second connecting pins are fixedly connected to both sides of the bottom of the supporting leg, and a connecting seat is slidably connected to the surfaces of the two second connecting pins, and a first buffer spring is fixedly connected to the bottom of the inner wall of the connecting seat, and the top of the first buffer spring is fixedly connected to the bottom of the supporting leg, and the bottom of the supporting leg is fixedly connected to a base, and second buffer springs are fixedly connected to the positions corresponding to the second connecting pins on both sides of the top of the base, and the top of the second buffer spring is fixedly connected to the bottom of the second connecting pin.

[0007] Preferably, the elastic reset mechanism includes a first connecting pin, which is fixedly connected to the front end of the inner bottom of the L-shaped fixing plate, and the end of the second arc-shaped shielding cover is slidably connected to the surface of the first connecting pin. A torsion spring is sleeved on the surface of the first connecting pin, and the two ends of the torsion spring are respectively fixedly connected to the top of the second arc-shaped shielding cover and the limiting end of the top of the first connecting pin.

[0008] Preferably, a slider is fixedly connected to the bottom of the second arc-shaped shielding cover, and an arc-shaped slide groove is opened at a position corresponding to the slider on the top of the workbench. The arc-shaped slide groove is formed by rotating around the first connecting pin as the axis, and the slider is slidably connected to the inner wall of the arc-shaped slide groove.

[0009] Preferably, the control device includes a control module, a signal conversion and transmission module, a power supply module, a cylinder drive module, and a data transmission module. The power supply module is used to provide working voltage to the control module, the hydraulic cylinder and the pressure sensor. The signal conversion and transmission module converts the signal of the pressure sensor and transmits it to the control module. The control module synchronously controls the hydraulic cylinder through the cylinder drive module, and the control module synchronously outputs data through the data transmission module.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention is controlled by a control device, and the pressure exerted on the valve plate is sensed by a pressure sensor. The pressure sensor converts the signal through a signal conversion and transmission module and transmits it to the control module. The control module controls the hydraulic cylinder through the cylinder drive module. The synchronous control module transmits the obtained pressure data to an external computer, thereby realizing timely collection of pressure data and control of pressure. There is no need to manually adjust the cylinder pressure and manually record the inspection data, which reduces the work intensity of the staff.

[0012] 2. By providing the first arc-shaped shielding cover and the second circular arc-shaped shielding cover, the working area is shielded to prevent the problem of the sheet-type valve ball test piece falling off the circular shelf, thereby providing shielding and protection for the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of a partial section of a sheet-type ball valve automatic pressure testing machine of the present invention;

[0014] Figure 2 For the present invention Figure 1 A partial enlarged view of part A;

[0015] Figure 3 For the present invention Figure 1 A partial enlarged view of part B;

[0016] Figure 4 It is a structural schematic diagram of a front view of an automatic pressure testing machine for a sheet-type ball valve of the present invention;

[0017] Figure 5 For the present invention Figure 4 A partial enlarged view of part C in the middle;

[0018] Figure 6 The circuit structure of the control device of the present invention is composed of.

[0019] In the figure: workbench 1, circular shelf 2, pressure sensor 3, valve plate 4, control device 5, control module 501, signal conversion and transmission module 502, power module 503, cylinder drive module 504, data transmission module 505, L-shaped fixing frame 6, hydraulic cylinder 7, pressing end 8, first arc-shaped shielding cover 9, L-shaped fixing plate 10, first connecting pin 11, torsion spring 12, second circular arc-shaped shielding cover 13, slider 14, circular arc-shaped slide groove 15, support leg 16, second connecting pin 17, connecting seat 18, first buffer spring 19, base 20, second buffer spring 21. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] like Figure 1-6The automatic pressure testing machine for a sheet-type ball valve shown in the figure comprises a workbench 1, and shock-absorbing mechanisms are connected to the four corners of the bottom of the workbench 1. The shock-absorbing mechanisms comprise support legs 16, and the support legs 16 are fixedly connected to the corners of the bottom of the workbench 1. Second connecting pins 17 are fixedly connected to both sides of the bottom of the support legs 16, and a connecting seat 18 is slidably connected to the surfaces of the two second connecting pins 17. A first buffer spring 19 is fixedly connected to the bottom of the inner wall of the connecting seat 18, and the top of the first buffer spring 19 is fixedly connected to the bottom of the support leg 16. A base 20 is fixedly connected to the bottom of the support leg 16, and second buffer springs 21 are fixedly connected to the positions corresponding to the second connecting pin 17 on both sides of the top of the base 20, and the top of the second buffer spring 21 is fixedly connected to the bottom of the second connecting pin 17. By arranging the first buffer spring 19, the force in the relative direction between the second connecting pin 17 and the base 20 can be buffered. By arranging the second buffer spring 21, the relative force between the support leg 16 and the connecting seat 18 is played, thereby playing a role in shock-absorbing the workbench 1.

[0022] A circular shelf 2 is fixedly connected to the middle position of the top of the workbench 1, a valve plate 4 is placed on the top of the circular shelf 2, a pressure sensor 3 is embedded in the side position of the bottom of the circular shelf 2, a control device 5 is fixedly connected to the side of the workbench 1, an L-shaped fixing frame 6 is fixedly connected to the top of the workbench 1 at the rear edge, a hydraulic cylinder 7 is fixedly connected to the top of the L-shaped fixing frame 6, a pressing end 8 is fixedly connected to the bottom of the output rod of the hydraulic cylinder 7, the pressing end 8 is pushed by the hydraulic cylinder 7 to press the valve plate 4 on the top of the circular shelf 2, and the pressure sensor 3 can measure the pressure on the circular shelf 2.

[0023] The control device 5 includes a control module 501, a signal conversion and transmission module 502, a power module 503, a cylinder drive module 504, and a data transmission module 505. The power module 503 is used to provide working voltage to the control module 501, the hydraulic cylinder 7 and the pressure sensor 3. The signal conversion and transmission module 502 converts the signal of the pressure sensor 3 and transmits it to the control module 501. The control module 501 synchronously controls the hydraulic cylinder 7 through the cylinder drive module 504. The control module 501 synchronously outputs data through the data transmission module 505. Through the control of the control device 5, the pressure exerted on the valve plate 4 is sensed through the pressure sensor 3. The pressure sensor 3 converts the signal through the signal conversion and transmission module 502 and transmits it to the control module 501. The control module 501 controls the hydraulic cylinder 7 through the cylinder drive module 504. The synchronous control module 501 transmits the obtained pressure data to the external computer, thereby realizing the timely collection of pressure data and the control of pressure. There is no need to manually adjust the cylinder pressure and manually record the inspection data, which reduces the work intensity of the staff.

[0024] An L-shaped fixing plate 10 is fixedly connected to one side of the top of the workbench 1, a first arc-shaped shielding cover 9 is fixedly connected to the rear end of the inner bottom of the L-shaped fixing plate 10, and a second arc-shaped shielding cover 13 is rotatably connected to the front end of the inner bottom of the L-shaped fixing plate 10 through an elastic reset mechanism. By arranging the first arc-shaped shielding cover 9 and the second arc-shaped shielding cover 13, the working area is shielded to prevent the disc valve ball test piece from detaching from the circular shelf 2 and sliding off, thereby providing shielding and protecting the working area.

[0025] A slider 14 is fixedly connected to the bottom of the second arc-shaped shielding cover 13, and an arc-shaped slide groove 15 is opened at a position corresponding to the slider 14 on the top of the workbench 1. The arc-shaped slide groove 15 is opened by rotating around the first connecting pin 11 as the axis, and the slider 14 is slidably connected to the inner wall of the arc-shaped slide groove 15. Through the sliding connection between the slider 14 and the arc-shaped slide groove 15, the bottom of the second arc-shaped shielding cover 13 is slidably supported.

[0026] The elastic reset mechanism includes a first connecting pin 11, which is fixedly connected to the front end of the bottom inner side of the L-shaped fixing plate 10, and the end of the second arc-shaped shielding cover 13 is slidably connected to the surface of the first connecting pin 11. The surface of the first connecting pin 11 is sleeved with a torsion spring 12, and the two ends of the torsion spring 12 are respectively fixedly connected to the top of the second arc-shaped shielding cover 13 and the limiting end of the top of the first connecting pin 11. By setting the torsion spring 12 and the first connecting pin 11 to cooperate with each other, the second arc-shaped shielding cover 13 is elastically supported. The staff can manually flip the second arc-shaped shielding cover 13 so that it flips around the first connecting pin 11 as the axis to open the second arc-shaped shielding cover 13. When letting go, the shielding will be restored under the action of the torsion spring 12, which is convenient for use.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic pressure testing machine for a sheet-type ball valve, comprising a workbench (1), characterized in that: The four corners of the bottom of the workbench (1) are connected to a shock absorbing mechanism, a circular shelf (2) is fixedly connected to the middle position of the top of the workbench (1), a valve plate (4) is placed on the top of the circular shelf (2), a pressure sensor (3) is embedded in the side position of the bottom of the circular shelf (2), a control device (5) is fixedly connected to the side of the workbench (1), an L-shaped fixing frame (6) is fixedly connected to the rear edge of the top of the workbench (1), a hydraulic cylinder (7) is fixedly connected to the top of the L-shaped fixing frame (6), a pressing end (8) is fixedly connected to the bottom of the output rod of the hydraulic cylinder (7), an L-shaped fixing plate (10) is fixedly connected to one side of the top of the workbench (1), a first arc-shaped shielding cover (9) is fixedly connected to the rear end of the inner bottom of the L-shaped fixing plate (10), and a second arc-shaped shielding cover (13) is rotatably connected to the front end of the inner bottom of the L-shaped fixing plate (10) through an elastic reset mechanism; The elastic reset mechanism comprises a first connecting pin (11), the first connecting pin (11) is fixedly connected to the front end of the inner bottom of the L-shaped fixing plate (10), the end of the second arc-shaped shielding cover (13) is slidably connected to the surface of the first connecting pin (11), the surface of the first connecting pin (11) is sleeved with a torsion spring (12), and the two ends of the torsion spring (12) are respectively fixedly connected to the top of the second arc-shaped shielding cover (13) and the limiting end of the top of the first connecting pin (11); The bottom of the second arc-shaped shielding cover (13) is fixedly connected with a slider (14); the top of the workbench (1) is provided with an arc-shaped slide groove (15) at a position corresponding to the slider (14); the arc-shaped slide groove (15) is formed by rotating around the first connecting pin (11) as the axis; and the slider (14) is slidably connected to the inner wall of the arc-shaped slide groove (15); The control device (5) comprises a control module (501), a signal conversion and transmission module (502), a power module (503), a cylinder drive module (504), and a data transmission module (505); the power module (503) is used to provide working voltage to the control module (501), the hydraulic cylinder (7), and the pressure sensor (3); the signal conversion and transmission module (502) converts the signal of the pressure sensor (3) and transmits it to the control module (501); the control module (501) synchronously controls the hydraulic cylinder (7) through the cylinder drive module (504); and the control module (501) synchronously outputs data through the data transmission module (505).

2. The automatic pressure testing machine for a sheet-type ball valve according to claim 1, characterized in that: The shock absorbing mechanism comprises a supporting leg (16), wherein the supporting leg (16) is fixedly connected to a corner of the bottom of the workbench (1), and second connecting pins (17) are fixedly connected to both sides of the bottom of the supporting leg (16), and a connecting seat (18) is slidably connected to the surfaces of the two second connecting pins (17), and a first buffer spring (19) is fixedly connected to the bottom of the inner wall of the connecting seat (18), and the top of the first buffer spring (19) is fixedly connected to the bottom of the supporting leg (16), and the bottom of the supporting leg (16) is fixedly connected to a base (20), and second buffer springs (21) are fixedly connected to the positions on both sides of the top of the base (20) corresponding to the second connecting pins (17), and the top of the second buffer spring (21) is fixedly connected to the bottom of the second connecting pin (17).

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