Air tightness detection device of controller

Abstract

The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for a controller, which comprises a base. A fixing part is arranged below the base; a detachable clamping plate used for clamping the controller is installed on one side of each connecting base, and the clamping plates are located in the openings of the positioning frames. A detection part is arranged above the base; on one hand, during detection, the controller is placed in the opening of the positioning frame, through rotation of the double-end lead screw, the movable seats on the two sides synchronously and relatively move, the movable seats drive the connecting seats and the clamping plates to move, when the clamping plates clamp the controller, the controller can be fixed, and then the conditions such as displacement of the controller in the detection process are avoided; therefore, the detection accuracy is ensured; on the other hand, the electric cylinder drives the top plate to descend, the air nozzle can be driven to be inserted into the butt joint groove in the controller, air can be supplied into the controller for air tightness detection, and therefore the detection efficiency of the controller is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically to an airtightness testing device for a controller. Background Technology

[0002] A controller is an electronic device that controls the starting, speed regulation, braking, and reversing of a motor by changing the wiring of the main circuit or control circuit and altering the resistance value in the circuit according to a predetermined sequence. In complex industrial environments, controllers need to operate for extended periods while enduring high pressure, high temperature, and harsh working conditions. However, the airtightness of the controller's internal components directly affects the equipment's sealing performance, operational stability, and potential leakage risks. Therefore, airtightness testing technology is of great significance in controller development and application.

[0003] Utility model patent CN201922409413.6 discloses a fan controller airtightness testing device. This device includes a base plate with a vertically extending upright plate fixedly connected to its rear end. A set of product placement slots is provided on the upper surface of the base plate, engaging with the product. A set of cylinders is installed on the front surface of the upright plate, positioned directly above the product placement slots. A cylinder start switch is located on the upper surface of the base plate. A clamping head is provided at the end of the cylinder's telescopic rod, connected to an air supply pipe. A docking nozzle is provided at the lower end of the clamping head, connected to the air supply pipe and engaging with the docking slot on the upper surface of the product. A pressure relief valve controls the air pressure entering the product, with multiple preset pressure relief valves for pressure release. A pressure sensor monitors the pressure value at the connection between the cylinder telescopic rod end and the clamping head, preventing damage to the product or the clamping head. Simultaneous pressing of both switches activates the cylinder, preventing accidental activation. The cylinder is only activated when the product is accurately placed in the product placement slot, improving testing reliability. Both the nozzle and the slot are hemispherical, facilitating connection and minimizing damage. This invention is a simple, easy-to-operate, highly reliable, and efficient fan controller airtightness testing device.

[0004] Although the airtightness testing device for the fan controller has the advantage of high testing efficiency, the device still has the following problems in actual use: The device performs airtightness testing by placing the product in the product placement slot, but since the product is not fixed in the product placement slot, the product is prone to slippage and deviation when docking with the air nozzle. This situation not only affects the accuracy of the test, but may also lead to the accumulation of deviations in the test data, thus adversely affecting the reliability of the airtightness assessment. In view of this, we propose an airtightness testing device for the controller. Utility Model Content

[0005] The purpose of this invention is to provide an airtightness detection device for a controller to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An airtightness testing device for a controller includes a base, with multiple connecting slots on the front and rear sides of the top of the base, and a positioning frame above the space between two adjacent connecting slots. The positioning frame has notches at both the front and rear ends. Side plates are fixed to the bottom of the base at both the front and rear edges. Two electric cylinders are installed on the top of the base at both the left and right ends.

[0008] The base has a fixing part at the bottom, which includes a double-ended lead screw rotatably mounted between two side plates. A motor for driving the double-ended lead screw to rotate is installed on the front side plate. Both ends of the double-ended lead screw are threadedly connected to movable seats. Multiple connecting seats are fixed on the top of the movable seats. The connecting seats pass through the connecting groove and slide in the connecting groove. A detachable clamping plate for holding the controller is installed on one side of each connecting seat. The clamping plate is located in the opening of the positioning frame.

[0009] A detection unit is located above the base. The detection unit includes a top plate. Both ends of the bottom of the top plate are fixed with connecting rods. The connecting rods pass through the base and are slidably connected to the base. A connecting plate is fixed between the bottom ends of the two connecting rods. The piston rod end of the electric cylinder is fixed to the connecting plate. Several detachable and hollow cylinders are fixed at the bottom of the top plate. Air inlets and pressure relief valves are fixed on the front and rear sides of the outer wall of the cylinders respectively. A nozzle for air is provided at the bottom of the cylinder.

[0010] As a preferred technical solution of this utility model, a flange is coaxially fixed to the top of the cylinder, and the flange is fixedly connected to the top plate by bolts.

[0011] As a preferred technical solution of this utility model, a guide rod is fixedly connected between the two side plates by bolts, and the guide rod passes through the movable seat and is slidably connected to the movable seat.

[0012] As a preferred technical solution of this utility model, the threads at both ends of the double-ended lead screw have opposite directions of rotation, and the ends of the double-ended lead screw are rotatably connected to the side plate through bearings.

[0013] As a preferred technical solution of this utility model, anti-slip pads are fixed on the two opposite end faces of the two adjacent clamping plates. The anti-slip pads are made of rubber.

[0014] As a preferred technical solution of this utility model, the outer wall of the connecting seat is provided with a slot, the end face of the clamp plate away from the anti-slip pad is fixed with an insert plate, the top of the connecting seat is threaded with a connecting bolt, and the bottom end of the connecting bolt passes through the insert plate.

[0015] As a preferred technical solution of this utility model, the bottom of the base is fixed with two support plates, which are fixedly connected to the base by bolts.

[0016] As a preferred technical solution of this utility model, the notch and the corresponding connecting groove are located on the same vertical plane, and the width of the notch is greater than the width of the clamping plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The system incorporates a fixing section and a detection section. Firstly, during detection, the controller is placed inside the opening of the positioning frame. The rotation of the double-ended lead screw causes the movable seats on both sides to move synchronously relative to each other. These movable seats then drive the connecting seat and clamping plate to move. When the clamping plate clamps the controller, it fixes the controller in place, preventing displacement during detection and ensuring accuracy. Secondly, the electric cylinder drives the top plate to descend, which in turn inserts the air nozzle into the docking slot on the controller, supplying air to the controller for airtightness testing, thus ensuring efficient testing of the controller. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the base structure in this utility model;

[0022] Figure 4 This is a partial structural diagram of the fixing part in this utility model;

[0023] Figure 5 This is a partial exploded structural diagram of the fixing part in this utility model;

[0024] Figure 6 This is a schematic diagram of the detection unit in this utility model;

[0025] In the picture:

[0026] 1. Base; 10. Support plate; 11. Connecting groove; 12. Positioning bracket; 120. Notch; 13. Side plate; 14. Electric cylinder;

[0027] 2. Fixing part; 20. Double-ended lead screw; 21. Guide rod; 22. Motor; 23. Movable seat; 24. Connecting seat; 240. Slot; 25. Connecting bolt; 26. Insert plate; 27. Clamping plate; 28. Anti-slip pad;

[0028] 3. Inspection section; 30. Top plate; 31. Connecting rod; 32. Connecting plate; 33. Flange; 34. Cylinder; 340. Air inlet; 341. Pressure relief valve; 35. Air nozzle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This embodiment provides a technical solution:

[0031] Please see Figures 1-6 As shown, an airtightness testing device for a controller includes a base 1. Multiple connecting slots 11 are formed on the front and rear sides of the top of the base 1. A positioning frame 12 is positioned above each adjacent connecting slot 11, and notches 120 are formed at both the front and rear ends of the positioning frame 12. Side plates 13 are fixed to the bottom of the base 1 at both the front and rear edges. Two electric cylinders 14 are installed on the top of the base 1 at both the left and right ends. A fixing part 2 is provided below the base 1. The fixing part 2 includes a double-ended lead screw 20 rotatably mounted between the two side plates 13. A motor 22 for driving the double-ended lead screw 20 to rotate is installed on the front side plate 13. Movable seats 23 are threaded to both ends of the double-ended lead screw 20, and multiple connecting seats are fixed to the top of the movable seats 23. 24. Connecting seat 24 passes through connecting groove 11 and is slidably connected to connecting groove 11. A detachable clamping plate 27 for holding the controller is installed on one side of connecting seat 24. The clamping plate 27 is located in the opening of positioning frame 12. A detection part 3 is provided above the base 1. The detection part 3 includes a top plate 30. Connecting rods 31 are fixed at both ends of the bottom of the top plate 30. The connecting rods 31 pass through the base 1 and are slidably connected to the base 1. A connecting plate 32 is fixed between the bottom ends of the two connecting rods 31. The piston rod end of the electric cylinder 14 is fixed to the connecting plate 32. Multiple detachable and hollow cylinders 34 are fixed at the bottom of the top plate 30. Air inlets 340 and pressure relief valves 341 are fixed on the front and rear sides of the outer wall of the cylinder 34, respectively. An air nozzle 35 is provided at the bottom of the cylinder 34.

[0032] In this embodiment, a flange 33 is coaxially fixed to the top of the cylinder 34, and the flange 33 is fixedly connected to the top plate 30 by bolts. This design ensures a firm connection between the cylinder 34 and the top plate 30, improving the stability and safety of the overall equipment.

[0033] In this embodiment, a guide rod 21 is bolted between the two side plates 13. The guide rod 21 passes through the movable seat 23 and is slidably connected to it. The guide rod 21 forms a stable guide track to ensure the accuracy of the movement trajectory of the movable seat 23.

[0034] In this embodiment, the threads at both ends of the double-ended lead screw 20 have opposite directions of rotation, and the ends of the double-ended lead screw 20 are rotatably connected to the side plate 13 via bearings. The reverse thread design enables bidirectional synchronous movement of the movable seat 23, while the bearing support structure facilitates the support of the double-ended lead screw 20 and supports its rotation, thereby improving transmission efficiency.

[0035] In this embodiment, anti-slip pads 28 are fixed to the two opposite end faces of two adjacent clamping plates 27. The anti-slip pads 28 are made of rubber. This design effectively prevents the clamped controller from sliding during the clamping process, improving the stability and safety of the clamping.

[0036] In this embodiment, a slot 240 is provided on the outer wall of the connecting seat 24, and an insert plate 26 is fixed to the end face of the clamping plate 27 facing away from the anti-slip pad 28. A connecting bolt 25 is threadedly connected to the top of the connecting seat 24, and the bottom end of the connecting bolt 25 passes through the insert plate 26. This detachable connection design facilitates the replacement and maintenance of the clamping plate 27, improving the flexibility and service life of the equipment.

[0037] In this embodiment, two support plates 10 are fixed to the bottom of the base 1, and the support plates 10 are fixedly connected to the base 1 by bolts. This design enhances the stability of the base 1, making the entire device more stable and reliable.

[0038] In this embodiment, the notch 120 and the corresponding connecting groove 11 are located on the same vertical plane, and the width of the notch 120 is greater than the width of the clamping plate 27. This design facilitates the smooth insertion and movement of the clamping plate 27, while ensuring the stability of the clamping plate 27 during the clamping process.

[0039] It should be added that, in this embodiment, the positioning frame 12 is located directly below the corresponding air nozzle 35. The positioning frame 12 is set to position the controller. When the air nozzle 35 is lowered, it can be directly inserted into the docking slot of the controller.

[0040] It is worth noting that the motor 22 involved in this embodiment is a conventional technology and will not be described in detail here.

[0041] In practical use, the user first places the controller in the opening of the positioning frame 12, then turns on the power to the motor 22. The motor 22 starts working, and the output shaft of the motor 22 rotates, driving the double-headed lead screw 20 to rotate. At this time, the movable seats 23 on both sides move inward in sync. The movable seats 23 drive the connecting seat 24 to move inward, and the connecting seat 24 drives the clamping plate 27 to move closer to the controller. When the anti-slip pad 28 presses against the controller, the controller is fixed. Then, the user turns on the power to the electric cylinder 14, and the electric cylinder 14 starts working. The piston rod of the electric cylinder 14 extends and drives the connecting plate 32, connecting rod 31 and top plate 30 to move downward. The top plate 30 drives multiple cylinders 34 to move downward, and the cylinders 34 drive the air nozzles 35 to move downward. When the air nozzles 35 are inserted into the docking slot of the controller, the user turns off the power to the electric cylinder 14. Finally, the user can supply air through the air nozzle controller for testing.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An airtightness detection device for a controller, characterized in that: The base (1) includes a base, which has multiple connecting slots (11) on the front and rear sides of the top. A positioning frame (12) is provided above the two adjacent connecting slots (11). The positioning frame (12) has notches (120) at both the front and rear ends. Side plates (13) are fixed at the bottom of the base (1) at both the front and rear edges. Two electric cylinders (14) are installed at the top of the base (1) at both the left and right ends. A fixing part (2) is provided below the base (1). The fixing part (2) includes a double-ended lead screw (20) rotatably installed between two side plates (13). A motor (22) for driving the double-ended lead screw (20) to rotate is installed on the front side plate (13). A movable seat (23) is threaded to both ends of the double-ended lead screw (20). Multiple connecting seats (24) are fixed on the top of the movable seat (23). The connecting seats (24) pass through the connecting groove (11) and are slidably connected to the connecting groove (11). A detachable clamping plate (27) for clamping the controller is installed on one side of the connecting seat (24). The clamping plate (27) is located in the opening of the positioning frame (12). A detection unit (3) is provided above the base (1). The detection unit (3) includes a top plate (30). Both ends of the bottom of the top plate (30) are fixed with connecting rods (31). The connecting rods (31) pass through the base (1) and are slidably connected to the base (1). A connecting plate (32) is fixed between the bottom ends of the two connecting rods (31). The piston rod end of the electric cylinder (14) is fixed to the connecting plate (32). Multiple detachable and hollow cylinders (34) are fixed at the bottom of the top plate (30). The outer walls of the cylinders (34) are fixed with air inlets (340) and pressure relief valves (341) on the front and rear sides respectively. The bottom of the cylinders (34) is provided with a nozzle (35).

2. The airtightness detection device for the controller according to claim 1, characterized in that: A flange (33) is coaxially fixed to the top of the cylinder (34), and the flange (33) is fixedly connected to the top plate (30) by bolts.

3. The airtightness detection device for the controller according to claim 1, characterized in that: A guide rod (21) is fixedly connected between the two side plates (13) by bolts. The guide rod (21) passes through the movable seat (23) and is slidably connected to the movable seat (23).

4. The airtightness detection device for the controller according to claim 1, characterized in that: The threads at both ends of the double-ended lead screw (20) are wound in opposite directions, and the ends of the double-ended lead screw (20) are rotatably connected to the side plate (13) through bearings.

5. The airtightness detection device for the controller according to claim 1, characterized in that: Each of the two adjacent clamps (27) has an anti-slip pad (28) fixed on one of its two opposite ends. The anti-slip pad (28) is made of rubber.

6. The airtightness detection device for the controller according to claim 1, characterized in that: The outer wall of the connecting seat (24) is provided with a slot (240), and a plug plate (26) is fixed on the end face of the clamp (27) away from the anti-slip pad (28). A connecting bolt (25) is threadedly connected to the top of the connecting seat (24), and the bottom end of the connecting bolt (25) passes through the plug plate (26).

7. The airtightness detection device for the controller according to claim 1, characterized in that: The bottom of the base (1) is fixed with two support plates (10), which are fixedly connected to the base (1) by bolts.

8. The airtightness detection device for the controller according to claim 1, characterized in that: The notch (120) and the corresponding connecting groove (11) are located on the same vertical plane, and the width of the notch (120) is greater than the width of the clamp (27).

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