Double-station water gun airtight test bench

Abstract

The application discloses a double-station water gun airtightness test bench, which comprises a rack, a loading platform fixedly connected to the top end of the rack, two groups of air cylinders arranged on the top of the loading platform, and detachable linkage blocks arranged on the output ends of the air cylinders; two positioning assemblies fixedly connected to the bottom end of the loading platform, two test fixtures assembled on the top of the loading platform through the positioning assemblies, and the test fixtures used for bearing water guns to be detected; and a detection assembly assembled between the rack and the loading platform, and the application relates to the technical field of water gun airtightness detection; through the overall structural cooperation, the water gun airtightness test bench can realize effective test of slight leakage of the water gun in the form of injecting gas into the internal cavity of the water gun and cooperating with high-precision monitoring of the direct pressure sensor and the differential pressure sensor, greatly improves the overall test precision, and effectively reduces the subsequent processing cost without wiping water stains after the test.

Description

Technical Field

[0001] This invention relates to the field of water gun air tightness testing technology, specifically a dual-station water gun air tightness testing station. Background Technology

[0002] Toy water guns mainly rely on the pushing and pulling of a piston to compress air, thereby squeezing out the water in the water tank. Toy water guns can not only bring people a refreshing experience of cooling down and relieving heat in the hot summer, but also exercise children's hand-eye coordination and reaction ability. It is a summer entertainment product that is loved by children and even many adults. After the toy water guns are manufactured, they need to be tested for air tightness to determine whether they meet the conditions for sale. Currently, the airtightness test of toy water guns in traditional technology is mostly carried out by water pressure testing. Employees directly observe the leakage points and analyze the causes of the defects. However, due to the presence of liquid, water stains are easily left on the surface of the product after testing, which requires additional wiping and greatly affects the testing efficiency of toy water guns.

[0003] To address these issues, the present invention provides a dual-station water gun air tightness testing station. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dual-station water gun air tightness testing station, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-station water gun air tightness testing bench, comprising: A frame, the top of which is fixedly connected to a platform, and the top of the platform is provided with two sets of cylinders, each of which has a detachable linkage block at its output end. Two positioning components are fixedly connected to the bottom of the platform. Two test fixtures are mounted on the top of the platform through the positioning components. The test fixtures are used to support the water gun to be tested. A testing component is assembled between a frame and a stage, and is used to cooperate with a test fixture to perform airtightness testing on a water gun.

[0006] Preferably, the positioning component includes: A transmission seat is mounted on the bottom end of the platform. A transmission shaft is rotatably connected to the inner side of the transmission seat. Both ends of the outer side of the transmission shaft are provided with threaded sections, and the threads of the two threaded sections have opposite directions. Two displacement plates are threadedly connected to two threaded segments respectively. Each displacement plate has a positioning rod fixedly connected to both ends. An extension plate is fixedly connected to the outer side of one of the positioning rods on each displacement plate, and a guide rod is fixedly connected to the top of the extension plate.

[0007] Preferably, the test fixture includes: The support seat has a placement cavity at its top end, and loading plates are fixedly connected to both ends of the support seat. Linear slide rails are fixedly connected to the top ends of the two loading plates, and linear sliders are slidably connected to the outer side of the linear slide rails. Two assembly blocks are fixedly connected to two linear sliders respectively. Each assembly block has an assembly groove that mates with the linkage block at one end. An air supply pipe is fixedly connected to one end of one of the assembly blocks, an air supply connector communicating with the air supply pipe is fixedly connected to one side of one of the assembly blocks, and a sealing block is fixedly connected to one end of the other assembly block. Two stabilization components are respectively mounted on the loading plate. The stabilization components are used to limit the sliding of the assembly block when the assembly block and the linkage block are not assembled.

[0008] Preferably, the stabilization component includes: A support frame is fixedly connected to a loading plate. An extension ear is fixedly connected to the top of the support frame. A central shaft is vertically rotatably connected to the middle of the extension ear. An eccentric plate is fixedly connected to the bottom of the central shaft. A transmission slot is opened in the middle of the eccentric plate, and the guide rod is also movably connected inside the corresponding transmission slot. A transmission spur gear is fixedly connected to the top of the central shaft. A drive shaft is vertically rotatably connected to the top of the support frame. An acceleration spur gear is fixedly connected to the outside of the drive shaft, and the acceleration spur gear is also meshed with the transmission spur gear. A transmission screw is threadedly connected to the inside of a drive shaft. A limit plate is fixedly connected to the top end of the transmission screw, and a mounting plate is fixedly connected to the bottom end of the transmission screw. A movable card plate is fixedly connected to a mounting plate corresponding to the air supply pipe, and a fixed card plate is fixedly connected to the top of a support frame corresponding to the air supply pipe.

[0009] Preferably, the detection component includes: An assembly box is fixedly connected to one side of the frame. A filter is fixedly connected to the assembly box. A transmission pipe is fixedly connected to the gas outlet end of the filter. A gas storage tank is fixedly connected to the inside of the frame. The end of the transmission pipe away from the filter is also connected to the gas storage tank. Two positioning frames are fixedly connected to the top of the platform. An air supply pipe is fixedly connected to the positioning frame. The end of the air supply pipe near the air storage tank is also connected to the air storage tank. Each air supply pipe is equipped with an air inlet valve A, an air inlet valve B and a direct pressure sensor. The direct pressure sensor is located between air inlet valve A and air inlet valve B. A sleeve is fixedly connected to the end of the air supply pipe away from the air storage tank. Two uprights are fixedly connected to the top of the platform. A differential pressure sensor is fixedly connected to the top of each upright. A transmission pipe A is fixedly connected to the H end of the differential pressure sensor. The end of the transmission pipe A away from the differential pressure sensor is also connected to a corresponding air supply pipe. An air intake valve B is located between the direct pressure sensor and the transmission pipe A. The transmission pipe B is fixedly connected to the L end of the differential pressure sensor. An exhaust valve B is fixedly connected to the transmission pipe B.

[0010] Preferably, both sides of the transmission seat are fixedly connected to limit rods, and both ends of the displacement plate are provided with limit through holes, and the limit through holes and the limit rods are clearance fit.

[0011] Preferably, the linkage block is I-shaped and the assembly slot is T-shaped.

[0012] Preferably, a sealing ring is fixedly connected to the edge of the air supply pipe away from the assembly block and the end of the sealing block away from the assembly block, and the sealing ring is made of rubber.

[0013] Preferably, the diameter of the transmission spur gear is larger than the diameter of the acceleration spur gear.

[0014] Preferably, both the moving plate and the fixed plate are arc-shaped structures, and anti-slip pads are fixedly connected to the inner sides of both the moving plate and the fixed plate, and anti-slip patterns are formed on the anti-slip pads.

[0015] Beneficial effects This invention provides a dual-station water gun air tightness testing station. Compared with the prior art, it has the following advantages: This dual-station water gun air tightness testing station, through its overall structural design, can effectively test for minute leaks in water guns by injecting gas into the internal cavity of the water gun and using high-precision monitoring from direct pressure sensors and differential pressure sensors. This greatly improves the overall testing accuracy, and after testing, there is no need to wipe water stains, effectively reducing subsequent processing costs.

[0016] This dual-station water gun air tightness testing platform, through the structural cooperation of positioning components and testing fixtures, can achieve easy disassembly and locking of the support base without affecting the application stability of the support base. This allows for subsequent replacement of the corresponding support base according to the water gun model, greatly improving the overall applicability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the separation structure of the stage and the test fixture of the present invention; Figure 4 This is a schematic diagram of the positioning component of the present invention; Figure 5 This is a schematic diagram of the test fixture of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the support frame of the present invention; Figure 7 This is a schematic diagram of the separate structure of the drive shaft and the transmission screw of the present invention; Figure 8 This is a schematic diagram of the detection component of the present invention; Figure 9 This is a schematic diagram of the assembly structure of the air delivery pipe of the present invention.

[0018] In the diagram: 1. Frame; 2. Platform; 3. Cylinder; 4. Linkage block; 5. Positioning assembly; 6. Test fixture; 7. Detection assembly; 8. Transmission seat; 9. Transmission shaft; 10. Threaded section; 11. Displacement plate; 12. Positioning rod; 13. Extension plate; 14. Guide rod; 15. Limiting rod; 16. Bearing seat; 17. Placement cavity; 18. Loading plate; 19. Linear slide rail; 20. Linear slider; 21. Assembly block; 22. Assembly slot; 23. Air supply pipe; 24. Air supply connector; 25. Sealing block; 26. Support frame; 27. Extension ear; 28. Central shaft; 29. ​​Eccentric plate. 30. Transmission slot; 31. Transmission spur gear; 32. Drive shaft; 33. Acceleration spur gear; 34. Transmission screw; 35. Limiting plate; 36. Mounting plate; 37. Moving clamping plate; 38. Fixed clamping plate; 39. Assembly box; 40. Filter; 41. Transmission pipe; 42. Air tank; 43. Positioning frame; 44. Air supply pipe; 45. Inlet valve A; 46. Inlet valve B; 47. Direct pressure sensor; 48. Sleeve; 49. Stand; 50. Differential pressure sensor; 51. Transmission pipe A; 52. Exhaust valve A; 53. Transmission pipe B; 54. Exhaust valve B; 55. Control unit. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please see Figure 1-9 A dual-station water gun air tightness testing station, comprising: The frame 1 has a platform 2 fixedly connected to its top. The top of the platform 2 is equipped with two sets of cylinders 3, and each cylinder 3 has a detachable linkage block 4 at its output end. Two positioning components 5 are fixedly connected to the bottom of the platform 2. Two test fixtures 6 are mounted on the top of the platform 2 through the positioning components 5. The test fixtures 6 are used to support the water gun to be tested. The detection component 7 is assembled between the frame 1 and the stage 2. The detection component 7 is used to cooperate with the test fixture 6 to form the airtightness test of the water gun. In this embodiment, each group of cylinders 3 consists of two cylinders; In summary, by setting up two independently configured test fixtures 6, product turnaround and connection time can be reduced, overall turnaround costs can be effectively controlled, and the testing efficiency of water guns can be effectively improved. Please refer to Figure 3 In this embodiment, the output end of the cylinder 3 is provided with a mounting hole, and a plunger is fixedly connected to one end of the linkage block 4 near the cylinder 3. The plunger is connected to the mounting hole by bolts. Please refer to Figure 4 In this embodiment, the positioning component 5 includes: The transmission seat 8 is mounted on the bottom end of the platform 2. The transmission seat 8 is rotatably connected to the inner side of the transmission shaft 9. Both ends of the outer side of the transmission shaft 9 are provided with threaded sections 10, and the threads of the two threaded sections 10 are opposite in direction. Two displacement plates 11 are threadedly connected to two threaded sections 10 respectively. Each displacement plate 11 has a positioning rod 12 fixedly connected to both ends. An extension plate 13 is fixedly connected to the outer side of one of the positioning rods 12 on each displacement plate 11. A guide rod 14 is fixedly connected to the top of the extension plate 13. Please refer to Figure 4 In this embodiment, a knob is rotatably connected to one end of the transmission seat 8, and the end of the knob located inside the transmission seat 8 is also fixedly connected to the transmission shaft 9. More specifically, through the connection between the knob and the transmission shaft 9, the transmission shaft 9 can be rotated by the knob, ensuring the transmission efficiency of the transmission shaft 9; Please refer to Figure 4 In this embodiment, both sides of the transmission seat 8 are fixedly connected to limit rods 15, and both ends of the displacement plate 11 are provided with limit through holes, and the limit through holes and the limit rods 15 are in clearance fit. More specifically, the setting of the limiting rod 15 and the limiting through hole can effectively guide the displacement of the displacement plate 11, prevent the displacement plate 11 from rotating with the transmission shaft rod 9, and greatly ensure the stability of the threaded section 10 during adjustment. Please refer to Figure 5 In this embodiment, the test fixture 6 includes: The support seat 16 has a placement cavity 17 at its top end. Both ends of the support seat 16 are fixedly connected to loading plates 18. The top ends of the two loading plates 18 are fixedly connected to linear slide rails 19. Linear sliders 20 are slidably connected to the outer side of the linear slide rails 19. Two assembly blocks 21 are fixedly connected to two linear sliders 20 respectively. The end of the assembly block 21 near the linkage block 4 is provided with an assembly groove 22 that cooperates with the linkage block 4. An air supply pipe 23 is fixedly connected to one end of one of the assembly blocks 21. An air supply connector 24 communicating with the air supply pipe 23 is fixedly connected to one side of one of the assembly blocks 21. A sealing block 25 is fixedly connected to one end of the other assembly block 21. Two stabilization components are respectively mounted on the loading plate 18. The stabilization components are used to limit the sliding of the assembly block 21 when the assembly block 21 and the linkage block 4 are not assembled. Please refer to Figure 4 In this embodiment, the positioning rod 12 is circular, and the platform 2 is provided with a relief groove corresponding to the positioning rod 12. The presence of the relief groove allows the positioning rod 12 to pass through the platform 2 and to be adjusted to a certain extent. When the positioning rod 12 contacts the edge of the bearing seat 16, the bearing seat 16 can be positioned between multiple positioning rods 12. Please refer to Figure 5 In this embodiment, limit holes are provided on both sides of the loading plate 18 away from the bearing seat 16, and a plug rod is fixedly connected to the top of the platform 2, and the plug rod is also plugged into the limit hole. More specifically, by connecting the limiting hole and the insertion rod, before placing the carrier 16, the insertion rod is first aligned with the limiting hole, and the carrier 16 is lowered. When the insertion rod moves into the limiting hole, the assembly of the carrier 16 can be guided, avoiding repeated adjustments later. In this embodiment, a soft material is provided at the stress-bearing position inside the placement cavity 17 to avoid damaging the water gun; Please refer to Figure 6 In this embodiment, the linkage block 4 is I-shaped and the assembly slot 22 is T-shaped; More specifically, based on the structural characteristics of the linkage block 4 and the assembly slot 22, before assembling the linkage block 4 and the assembly slot 22, the linkage block 4 is inserted from the top of the assembly slot 22 and connected to the output end of the cylinder 3. Since the linkage block 4 is located between the output end of the cylinder 3 and the assembly block 21, during the subsequent operation of the output end of the cylinder 3, the assembly block 21 will be driven to make adaptive adjustments under the linkage of the linkage block 4. Please refer to Figure 5 In this embodiment, a sealing ring is fixedly connected to the edge of the air supply pipe 23 away from the assembly block 21 and the end of the sealing block 25 away from the assembly block 21. The sealing ring is made of rubber. More specifically, by setting the sealing ring, when the air supply pipe 23 comes into contact with the water injection end of the water gun, the sealing ring can block the gap between the air supply pipe 23 and the water gun, preventing subsequent gas from flowing out from the gap at the water injection end. In addition, with the sealing ring set at the sealing block 25, when the sealing block 25 comes into contact with the water outlet end of the water gun, the gap between the water outlet end of the water gun and the sealing block 25 can be blocked, preventing gas from flowing out from the gap at the water outlet end of the water gun. Please refer to Figure 7 In this embodiment, the stabilization component includes: Support frame 26 is fixedly connected to loading plate 18. An extension ear 27 is fixedly connected to the top of support frame 26. A central shaft 28 is vertically rotatably connected to the middle of extension ear 27. An eccentric plate 29 is fixedly connected to the bottom of central shaft 28. A transmission slot 30 is opened in the middle of eccentric plate 29, and guide rod 14 is also movably connected inside the corresponding transmission slot 30. A transmission spur gear 31 is fixedly connected to the top of the central shaft 28. The top of the support frame 26 is vertically rotatably connected to a drive shaft 32. An acceleration spur gear 33 is fixedly connected to the outside of the drive shaft 32, and the acceleration spur gear 33 is also meshed with the transmission spur gear 31. The transmission screw 34 is threadedly connected to the inside of the drive shaft 32. The top end of the transmission screw 34 is fixedly connected to a limit plate 35, and the bottom end of the transmission screw 34 is fixedly connected to a mounting plate 36. A movable card plate 37 is fixedly connected to a mounting plate 36 corresponding to the air supply pipe 23, and a fixed card plate 38 is fixedly connected to the top of the support frame 26 corresponding to the air supply pipe 23. Please refer to Figure 7 In this embodiment, the diameter of the transmission spur gear 31 is larger than the diameter of the acceleration spur gear 33; More specifically, by changing the diameter of the transmission spur gear 31 and the acceleration spur gear 33, the transmission ratio between the transmission spur gear 31 and the acceleration spur gear 33 can be increased, thereby accelerating the rotation of the drive shaft 32. Please refer to Figure 7In this embodiment, a guide rod is vertically slidably connected to the top of the support frame 26. The top of the guide rod is fixedly connected to the limiting plate 35, and the bottom of the guide rod is fixedly connected to the mounting plate 36. More specifically, by setting the guide rod, the vertical displacement of the transmission screw 34 can be effectively guided, preventing the transmission screw 34 from rotating with the drive shaft 32; Please refer to Figure 7 In this embodiment, a rubber pad is fixedly connected to the bottom end of the limiting plate 35. By setting the rubber pad, the rubber pad can be in contact with the assembly block 21 before the limiting plate 35 contacts the assembly block 21, so as to avoid the limiting plate 35 damaging the assembly block 21. Please refer to Figure 7 In this embodiment, both the moving plate 37 and the fixed plate 38 are arc-shaped structures, and anti-slip pads are fixedly connected to the inner sides of both the moving plate 37 and the fixed plate 38, and anti-slip textures are provided on the anti-slip pads. Example 2: Please see Figure 1-9 This embodiment provides a technical solution based on Embodiment 1: the detection component 7 includes: Assembly box 39 is fixedly connected to one side of frame 1. Filter 40 is fixedly connected to assembly box 39. Transmission pipe 41 is fixedly connected to the gas outlet end of filter 40. Gas storage tank 42 is fixedly connected to the inside of frame 1. The end of transmission pipe 41 away from filter 40 is also connected to gas storage tank 42. Two positioning frames 43 are fixedly connected to the top of the platform 2. An air supply pipe 44 is fixedly connected to the positioning frame 43. The end of the air supply pipe 44 near the air storage tank 42 is also connected to the air storage tank 42. Each air supply pipe 44 is equipped with an air inlet valve A45, an air inlet valve B46 and a direct pressure sensor 47. The direct pressure sensor 47 is located between the air inlet valve A45 and the air inlet valve B46. A sleeve 48 is fixedly connected to the end of the air supply pipe 44 away from the air storage tank 42. Two uprights 49 are fixedly connected to the top of the platform 2. A differential pressure sensor 50 is fixedly connected to the top of the uprights 49. A transmission pipe A51 is fixedly connected to the H end of the differential pressure sensor 50. The end of the transmission pipe A51 away from the differential pressure sensor 50 is also connected to the corresponding air supply pipe 44. The air intake valve B46 is located between the direct pressure sensor 47 and the transmission pipe A51. A transmission pipe B53 is fixedly connected to the L end of the differential pressure sensor 50. An exhaust valve B54 is fixedly connected to the transmission pipe B53. More specifically, through the structural characteristics of the moving plate 37 and the fixed plate 38, after the sleeve 48 is sleeved with the air supply connector 24, the moving plate 37 and the fixed plate 38 can make greater contact with the air supply pipe 44. In addition, with the anti-slip pad, the friction between the moving plate 37, the fixed plate 38 and the air supply pipe 44 can be increased, so as to achieve stable positioning of the air supply pipe 44. Please refer to Figure 9 In this embodiment, the end of the air supply pipe 44 connected to the sleeve 48 is made of a flexible material. Due to the material properties of the air supply pipe 44, the sleeve 48 can be easily separated from the air supply connector 24. In summary, the assembly box 39 is equipped with a control unit 55, which consists of a human-machine interface, a PLC and a data storage system. The data storage system is used to store test data and formula parameters. In this embodiment, the platform 2 is equipped with a good product indicator light and a buzzer. When the water gun is not defective, the good product indicator light will light up, and when it is defective, the buzzer will sound. More specifically, both the direct pressure sensor 47 and the differential pressure sensor 50 use RS485 (Modbus-RTU) communication to transmit real-time data.

[0021] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0022] Working principle: First, place the carrier 16 corresponding to the water gun model at the designated position on the platform 2, and put the sleeve 48 on the air supply connector 24 to achieve the initial connection between the sleeve 48 and the air supply connector 24. Then, rotate the transmission shaft 9. With the setting of two threaded sections 10 with opposite threads on the transmission shaft 9, the two displacement plates 11 can move closer to the threaded section 10 under the guidance of the limiting rod 15 until the positioning rod 12 contacts the edge of the carrier 16, so as to position the carrier 16 between multiple positioning rods 12. Furthermore, since the guide rod 14 is connected inside the transmission channel 30, during the adjustment process of the guide rod 14 following the positioning rod 12, the adaptive movement of the guide rod 14 inside the transmission channel 30 can pull the eccentric plate 29, causing the eccentric plate 29 to rotate under the support of the central shaft 28, and through the transmission spur gear 31 to drive the acceleration spur gear 33, causing the drive shaft 32 to rotate. Since the transmission screw 34 is connected inside the drive shaft 32, when the drive shaft 32 rotates, it can drive the transmission screw 34 to adjust upward, causing the limit plate 35 to disengage from the assembly block 21, thereby releasing the positioning of the assembly block 21. In conjunction with the connection between the mounting plate 36 and the moving clamping plate 37, during the upward movement of the transmission screw 34, the moving clamping plate 37 will approach the sleeve 48. When the moving clamping plate 37 contacts the sleeve 48, the sleeve 48 can be positioned between the moving clamping plate 37 and the fixed clamping plate 38. Then, a linkage block 4 is installed between the corresponding cylinder 3 and the assembly slot 22, and the water gun to be tested is placed inside the placement cavity 17. The cylinder 3 is started, and under the linkage of the linkage block 4, the assembly block 21 is moved closer to the bearing seat 16 under the guidance of the linear slider 20 and the linear slide rail 19 until the air supply pipe 23 contacts the water injection end of the water gun and the sealing block 25 contacts the water outlet end of the water gun. The airflow is then transmitted through the air compressor. After being processed by the filter 40, the airflow is injected into the air tank 42 through the transmission pipe 41. When the water gun is tested for air tightness, both the air inlet valve A45 and the air inlet valve B46 are opened. The compressed air is filled into the cavity inside the water gun after being monitored by the direct pressure sensor 47. At the same time, it enters the H end of the differential pressure sensor 50. The L end is connected to the external air source through the exhaust valve B54 to maintain equal pressure. After the inflation reaches the set pressure, the air inlet valves A45 and B46 close, and the air outlet valve A52 closes simultaneously, forming a closed volume between the H end of the differential pressure sensor 50 and the internal cavity of the water gun. The L end maintains a stable reference pressure, and the differential pressure sensor 50 enters the detection state. If there is a leak in the water gun, the pressure at the H end drops, creating a pressure difference with the L end. The differential pressure sensor detects this small pressure difference change in real time and transmits the data to the PLC for judgment via RS485 communication. After the test, the air outlet valves A52 and B54 open, and the system releases pressure simultaneously through the air outlet valves A52 and B54, completing one test cycle.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-station water gun air tightness testing stand, characterized in that: include: A frame (1) is fixedly connected to a platform (2) at the top of the frame (1). Two sets of cylinders (3) are provided on the top of the platform (2). Each cylinder (3) has a detachable linkage block (4) at its output end. Two positioning components (5) are fixedly connected to the bottom of the platform (2). Two test fixtures (6) are mounted on the top of the platform (2) through the positioning components (5). The test fixtures (6) are used to support the water gun to be tested. The detection component (7) is assembled between the frame (1) and the stage (2). The detection component (7) is used to cooperate with the test fixture (6) to form the airtightness test of the water gun.

2. The dual-station water gun air tightness testing stand according to claim 1, characterized in that: The positioning component (5) includes: Transmission seat (8), the transmission seat (8) is mounted on the bottom end of the platform (2), the inner side of the transmission seat (8) is rotatably connected to the transmission shaft (9), both ends of the outer side of the transmission shaft (9) are provided with threaded sections (10), and the threads of the two threaded sections (10) are opposite in direction. Two displacement plates (11) are threadedly connected to two threaded segments (10) respectively. Each displacement plate (11) has a positioning rod (12) fixedly connected to both ends. An extension plate (13) is fixedly connected to the outside of one of the positioning rods (12) on each displacement plate (11). A guide rod (14) is fixedly connected to the top of the extension plate (13).

3. The dual-station water gun air tightness testing stand according to claim 2, characterized in that: The test fixture (6) includes: The support seat (16) has a placement cavity (17) at its top end. Both ends of the support seat (16) are fixedly connected to loading plates (18). The top ends of the two loading plates (18) are fixedly connected to linear slide rails (19). A linear slider (20) is slidably connected to the outer side of the linear slide rails (19). Two assembly blocks (21) are fixedly connected to two linear sliders (20) respectively. The assembly block (21) has an assembly groove (22) that mates with the linkage block (4) at one end near the linkage block (4). An air supply pipe (23) is fixedly connected to one end of one of the assembly blocks (21), and an air supply connector (24) communicating with the air supply pipe (23) is fixedly connected to one side of one of the assembly blocks (21), and a sealing block (25) is fixedly connected to one end of the other assembly block (21). Two stabilization components are respectively mounted on the loading plate (18). The stabilization components are used to restrict the sliding of the assembly block (21) when the assembly block (21) and the linkage block (4) are not assembled.

4. The dual-station water gun air tightness testing stand according to claim 3, characterized in that: The stabilization components include: A support frame (26) is fixedly connected to a loading plate (18). An extension ear (27) is fixedly connected to the top of the support frame (26). A central shaft (28) is vertically rotatably connected to the middle of the extension ear (27). An eccentric plate (29) is fixedly connected to the bottom of the central shaft (28). A transmission slot (30) is opened in the middle of the eccentric plate (29), and the guide rod (14) is also movably connected inside the corresponding transmission slot (30). A transmission spur gear (31) is fixedly connected to the top of the central shaft (28). The top of the support frame (26) is vertically rotatably connected to a drive shaft (32). An acceleration spur gear (33) is fixedly connected to the outside of the drive shaft (32), and the acceleration spur gear (33) is also meshed with the transmission spur gear (31). A transmission screw (34) is threadedly connected to the inside of a drive shaft (32). A limit plate (35) is fixedly connected to the top end of the transmission screw (34), and a mounting plate (36) is fixedly connected to the bottom end of the transmission screw (34). The movable card plate (37) is fixedly connected to the mounting plate (36) corresponding to the air supply pipe (23), and the top of the support frame (26) corresponding to the air supply pipe (23) is fixedly connected to the fixed card plate (38).

5. The dual-station water gun air tightness testing stand according to claim 1, characterized in that: The detection component (7) includes: Assembly box (39), the assembly box (39) is fixedly connected to one side of the frame (1), the assembly box (39) is fixedly connected to a filter (40), the gas outlet end of the filter (40) is fixedly connected to a transmission pipe (41), the inner side of the frame (1) is fixedly connected to a gas storage tank (42), and the end of the transmission pipe (41) away from the filter (40) is also connected to the gas storage tank (42); Two positioning frames (43) are fixedly connected to the top of the platform (2). An air supply pipe (44) is fixedly connected to the positioning frame (43). The end of the air supply pipe (44) near the air storage tank (42) is also connected to the air storage tank (42). Each air supply pipe (44) is equipped with an air inlet valve A (45), an air inlet valve B (46) and a direct pressure sensor (47). The direct pressure sensor (47) is located between the air inlet valve A (45) and the air inlet valve B (46). A sleeve (48) is fixedly connected to the end of the air supply pipe (44) away from the air storage tank (42). Two uprights (49) are fixedly connected to the top of the platform (2). A differential pressure sensor (50) is fixedly connected to the top of the uprights (49). A transmission pipe A (51) is fixedly connected to the H end of the differential pressure sensor (50). The end of the transmission pipe A (51) away from the differential pressure sensor (50) is also connected to the corresponding air supply pipe (44). The air intake valve B (46) is located between the direct pressure sensor (47) and the transmission pipe A (51). A transmission pipe B (53) is fixedly connected to the L end of the differential pressure sensor (50). An exhaust valve B (54) is fixedly connected to the transmission pipe B (53).

6. The dual-station water gun air tightness testing stand according to claim 2, characterized in that: Both sides of the transmission seat (8) are fixedly connected to limit rods (15), and both ends of the displacement plate (11) are provided with limit through holes, and the limit through holes and the limit rods (15) are in clearance fit.

7. The dual-station water gun air tightness testing stand according to claim 3, characterized in that: The linkage block (4) is I-shaped, and the assembly slot (22) is T-shaped.

8. The dual-station water gun air tightness testing stand according to claim 3, characterized in that: The edge of the air supply pipe (23) away from the assembly block (21) and the end of the sealing block (25) away from the assembly block (21) are both fixedly connected with sealing rings, and the sealing rings are made of rubber.

9. A dual-station water gun air tightness testing stand according to claim 4, characterized in that: The diameter of the transmission spur gear (31) is larger than the diameter of the acceleration spur gear (33).

10. A dual-station water gun air tightness testing stand according to claim 4, characterized in that: Both the moving plate (37) and the fixed plate (38) are arc-shaped structures, and anti-slip pads are fixedly connected to the inner sides of both the moving plate (37) and the fixed plate (38), and anti-slip patterns are formed on the anti-slip pads.

Images