Pre-clamping type pneumatic stop valve testing device

Abstract

The utility model discloses a pre-clamping type pneumatic cut-off valve testing device which comprises a machine table which is provided with a left side supporting assembly and a right side supporting assembly. The left side supporting assembly comprises a left pressing plate and two vertical plates distributed front and back. The right side supporting assembly comprises an air cylinder and a sliding plate, a piston rod extending out of the air cylinder is fixed to the sliding plate, and a right pressing plate is fixedly arranged on the upper side of the sliding plate. The left pressing plate and the right pressing plate are arranged on the machine table, air holes are formed in the left pressing plate and the right pressing plate respectively, an air inlet pipe and an air outlet pipe which are communicated with the air holes are arranged on the machine table, the pneumatic cut-off valve is pre-fixed through the left side supporting assembly, then the pneumatic cut-off valve is completely fixed through the right side supporting assembly, and therefore the pneumatic cut-off valve can be completely fixed. According to the pre-fixing mode, a flange plate on the left side of the pneumatic stop valve is arranged between a left pressing plate and two vertical plates, the operation is simple and safe, and the risk of clamping injury does not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic cut-off valves, in particular to a pre-clamping type pneumatic cut-off valve testing device. Background Art

[0002] A pneumatic cut-off valve is a valve body used to quickly cut off the fluid in a pipeline and achieve precise control of the pipeline system. After the pneumatic cut-off valve is produced and assembled, it needs to be tested to test its reaction sensitivity and whether there is leakage.

[0003] In the patent application No. 202222089867.1, a pneumatic cut-off valve testing device is disclosed. Although this device can realize the automatic clamping of the pneumatic cut-off valve and then carry out the testing work, however, when the staff places the pneumatic cut-off valve on the clamping body frame of the device, the staff's hand is easily clamped by the movable clamping fixing plate therein;

[0004] In addition, this device needs to clamp the valve body area of the pneumatic cut-off valve, so it is not easy to clamp the special-shaped pneumatic cut-off valve and needs to be improved. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a pre-clamping type pneumatic cut-off valve testing device to solve the problems mentioned in the above background art.

[0006] The utility model provides the following technical solution: a pre-clamping type pneumatic cut-off valve testing device, including a machine table, on which a left support assembly and a right support assembly are arranged;

[0007] The left support assembly includes a left pressing plate and two vertical plates distributed front and back;

[0008] The right support assembly includes a cylinder and a sliding plate. The piston rod extending out of the cylinder is fixed on the sliding plate, and a right pressing plate is fixedly arranged on the upper side of the sliding plate;

[0009] Air vent holes are respectively arranged in the left pressing plate and the right pressing plate, and an air inlet pipe and an air outlet pipe are arranged on the machine table. An air pump for supplying air to the air inlet pipe is arranged in the machine table, and an air flow sensor communicated with the air pipe is arranged in the machine table. The air inlet pipe and the air pipe are respectively connected to one of the air vent holes.

[0010] Preferably, the left pressing plate and the right pressing plate respectively include a plate body, a lifting plate and a first adjusting bolt. A sliding cavity is arranged in the plate body, and the lifting plate is slidably connected up and down in the sliding cavity. The first adjusting bolt is rotatably connected in the plate body and is threadedly connected to the lifting plate. The air vent hole is arranged in the lifting plate.

[0011] Preferably, it further includes an adjusting plate which is slidably connected left and right in a first sliding groove on the machine table, and a second adjusting bolt which is rotationally connected in the first sliding groove and threadedly connected to the adjusting plate, and the vertical plate is installed on the adjusting plate.

[0012] Preferably, a second sliding groove is provided in the upper side surface of the adjusting plate, and two mounting plates are slidably connected back and forth in the second sliding groove. A threaded shaft is also rotationally connected in the second sliding groove. Two opposite threads are machined on the threaded shaft, and each thread is connected to one mounting plate. The two vertical plates are respectively fixed on the two mounting plates.

[0013] Preferably, a through groove is provided in the front side surface of the first sliding groove. The threaded shaft passes through the adjusting plate forward and extends to the front side of the machine table through the through groove, and an adjusting handle is installed at the front end of the threaded shaft.

[0014] Preferably, a tray is provided on the machine table. The tray is attached to the side surface of the left pressing plate close to the vertical plate, and the upper side surface of the tray is an arc surface.

[0015] Preferably, a rubber layer is provided on the upper arc surface of the tray.

[0016] The utility model provides a pre-clamping type pneumatic cut-off valve testing device, which has the following beneficial effects:

[0017] The utility model first pre-fixes the pneumatic cut-off valve through the left support assembly, and then completely fixes the pneumatic cut-off valve through the right support assembly. Among them, the pre-fixing method is to place the flange on the left side in the pneumatic cut-off valve between the left pressing plate and the two vertical plates. The above operation is simple and safe without the risk of pinching.

[0018] In the utility model, the positions of the ventilation holes in the inner pressing plate and the right pressing plate can be adjusted, and the left and right positions and the front and rear distances of the two vertical plates can also be adjusted, improving the application range of the utility model. Description of the Drawings

[0019] Figure 1 is the external view schematic diagram of the utility model;

[0020] Figure 2 is Figure 1 the enlarged schematic diagram of the left pressing plate in

[0021] Figure 3 is the top view schematic diagram of the utility model;

[0022] Figure 4 is the front view schematic diagram of the utility model.

[0023] In the figure:

[0024] 11. Machine; 21. Left pressure plate; 22. Vertical plate; 23. Adjusting plate; 24. Mounting plate; 25. Threaded shaft; 26. Handle; 27. Tray; 31. Cylinder; 32. Slide plate; 33. Right pressure plate; 41. Inlet pipe; 42. Air pipe; 51. Plate body; 52. Lifting plate; 53. First adjusting bolt; 61. Second adjusting bolt. Detailed implementation mode

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise clearly defined and limited, the terms "mount", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Refer to Figures 1 - 4 , according to an embodiment of a pre-clamping type pneumatic cut-off valve test device of the present invention, it includes a machine 11, and a left support assembly and a right support assembly are provided on the machine 11, and the pneumatic cut-off valve to be detected can be clamped between the left support assembly and the right support assembly.

[0030] The left support assembly includes a left pressing plate 21 and two vertical plates 22 distributed front and back;

[0031] The right support assembly includes a cylinder 31 and a sliding plate 32. The piston rod extending from the cylinder 31 is fixed to the sliding plate 32, and a right pressing plate 33 is fixedly provided on the upper side of the sliding plate 32.

[0032] When clamping is required, the operator first places the pneumatic cut-off valve between the two vertical plates 22 at the front and back. After making its left side adhere to the right side surface of the left pressing plate 21 and then making it sink, at this time, the left pressing plate 21 and the vertical plate 22 can respectively adhere to the left and right side surfaces of the left flange of the pneumatic cut-off valve and pre-fix it. Then, the cylinder 31 controls the sliding plate 32 and the right pressing plate 33 to move leftward. At this time, the right pressing plate 33 can press on the right side surface of the right flange inside the pneumatic cut-off valve, and the clamping and fixing of the pneumatic cut-off valve are completed.

[0033] In addition, in order to facilitate the testing of the pneumatic cut-off valve, including testing the air cut-off speed and sealing performance, air vents are respectively provided in the left pressing plate 21 and the right pressing plate 33. An air inlet pipe 41 and an air outlet pipe 42 are provided on the machine table 11. An air pump (not shown in the figure) for supplying air to the air inlet pipe 41 is provided inside the machine table 11. An air flow sensor connected to the air pipe 42 is provided inside the machine table 11. The air inlet pipe 41 and the air pipe 42 are respectively connected to one of the air vents. When the clamping of the pneumatic cut-off valve is completed, both of the air vents are connected to the inside of the pneumatic cut-off valve, and the operator can test the cut-off speed of the clamped pneumatic cut-off valve by controlling the air pump and according to the air flow sensor.

[0034] In the second embodiment of the pre-clamping type pneumatic cut-off valve testing device, in order to enable the pre-clamping type pneumatic cut-off valve testing device to act on pneumatic cut-off valves of different specifications, the positions of the air vents need to be adjustable, and the left and right positions and the front and back spacing of the vertical plates 22 also need to be adjustable. Therefore, in this embodiment, the left pressing plate 21 and the right pressing plate 33 both respectively include a plate body 51, a lifting plate 52, and a first adjustment bolt 53. A sliding cavity is provided inside the plate body 51, and the lifting plate 52 is slidably connected up and down inside the sliding cavity. The first adjustment bolt 53 is rotatably connected inside the plate body 51 and is threadedly connected to the lifting plate 52. The air vent is provided inside the lifting plate 52. The operator can adjust the up and down position of the lifting plate 52 and the air vent inside it by rotating the first adjustment bolt 53. In this embodiment, two first adjustment bolts 53 are provided and are connected by a synchronous belt to make the lifting of the lifting plate 52 stable.

[0035] In addition, a first sliding groove is provided on the machine table 11. An adjusting plate 23 is slidably connected left and right in the first sliding groove. A second adjusting bolt 61 that is threadedly connected to the adjusting plate 23 is rotatably connected in the first sliding groove. A second sliding groove is provided in the upper side surface of the adjusting plate 23. Two mounting plates 24 are slidably connected back and forth in the second sliding groove. A threaded shaft 25 is also rotatably connected in the second sliding groove. Two opposite threads are machined on the threaded shaft 25, and each thread is connected to one of the mounting plates 24. Two vertical plates 22 are respectively fixed to the two mounting plates 24. Workers can control the left and right positions of the adjusting plate 23 and the vertical plates 22 by rotating the second adjusting bolt 61, and workers can control the distance between the two vertical plates 22 by rotating the threaded shaft 25, so that the left pressing plate 21 and the vertical plates 22 can more stably pre-fix the flange on the left side in pneumatic cut-off valves of different specifications.

[0036] In order to facilitate the worker to rotate the threaded shaft 25, a through groove is provided in the front side surface of the first sliding groove. The threaded shaft 25 penetrates forward through the adjusting plate 23 and extends to the front side of the machine table 11 through the through groove, and an adjusting handle 26 is installed at the front end of the threaded shaft 25.

[0037] In addition, in order to prevent the flange from being bruised and facilitate the worker to take out the pneumatic cut-off valve after the test, a tray 27 is provided on the machine table 11. The tray 27 is attached to the side surface of the left pressing plate 21 close to the vertical plate 22, and the upper side surface of the tray 27 is an arc surface. A rubber layer is provided on the upper arc surface of the tray 27. By providing the tray 27, the pneumatic cut-off valve will not abut against the machine table 11 during the test, which is convenient for picking up.

[0038] In order to ensure sealing, sealing rings are provided on the side surfaces of the two lifting plates 52 that are close to each other, and a plurality of sealing rings with different diameters are provided to adapt to pneumatic cut-off valves of different specifications.

[0039] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any person skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A pre-clamping pneumatic cut-off valve testing device, comprising a machine table (11), characterized in that: A left support assembly and a right support assembly are provided on the machine table (11). The left support assembly includes a left pressing plate (21) and two vertical plates (22) distributed front and back. The right support assembly includes a cylinder (31) and a sliding plate (32). A piston rod extending from the cylinder (31) is fixed to the sliding plate (32), and a right pressing plate (33) is fixedly provided on the upper side of the sliding plate (32). Vent holes are respectively provided in the left pressing plate (21) and the right pressing plate (33). An air inlet pipe (41) and an air outlet pipe (42) are provided on the machine table (11). An air pump for supplying air to the air inlet pipe (41) is provided in the machine table (11), and an air flow sensor communicating with the air pipe (42) is provided in the machine table (11). The air inlet pipe (41) and the air pipe (42) are respectively connected to one of the vent holes.

2. The pre-clamping pneumatic cut-off valve testing device according to claim 1, characterized in that: The left pressing plate (21) and the right pressing plate (33) each respectively include a plate body (51), a lifting plate (52), and a first adjusting bolt (53). A sliding cavity is provided in the plate body (51), and the lifting plate (52) is slidably connected up and down in the sliding cavity. The first adjusting bolt (53) is rotatably connected in the plate body (51) and threadedly connected to the lifting plate (52). The vent hole is provided in the lifting plate (52).

3. The pre-clamping pneumatic cut-off valve testing device according to claim 1, characterized in that: An adjusting plate (23) is further included. The adjusting plate (23) is slidably connected left and right in a first sliding groove on the machine table (11). A second adjusting bolt (61) threadedly connected to the adjusting plate (23) is rotatably connected in the first sliding groove, and the vertical plate (22) is installed on the adjusting plate (23).

4. The pre-clamping pneumatic cut-off valve testing device according to claim 3, characterized in that: A second sliding groove is provided in the upper side surface of the adjusting plate (23). Two mounting plates (24) are slidably connected back and forth in the second sliding groove. A threaded shaft (25) is further rotatably connected in the second sliding groove. Two opposite threads are processed on the threaded shaft (25), and each thread is connected to one of the mounting plates (24). The two vertical plates (22) are respectively fixed to the two mounting plates (24).

5. The pre-clamping pneumatic cut-off valve testing device according to claim 4, characterized in that: A through groove is provided in the front side surface of the first sliding groove. The threaded shaft (25) extends forward through the adjusting plate (23) and then extends to the front side of the machine table (11) through the through groove, and an adjusting handle (26) is installed at the front end of the threaded shaft (25).

6. The pre-clamping pneumatic cut-off valve testing device according to claim 1, characterized in that: A tray (27) is provided on the machine table (11). The tray (27) is attached to the side surface of the left pressing plate (21) close to the vertical plate (22), and the upper side surface of the tray (27) is an arc surface.

7. The pre-clamping pneumatic cut-off valve testing device according to claim 6, characterized in that: A rubber layer is provided on the upper arc surface of the tray (27).

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