Dynamic pressure detection device for air tightness of water pump impeller

Abstract

The utility model discloses a dynamic pressure detection device for air tightness of a water pump impeller, which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with four uniformly distributed supporting rods, the upper ends of the supporting rods are fixedly connected with a connecting plate, the bottom of the connecting plate is provided with a gear motor, the upper end of the connecting plate is fixedly connected with a supporting plate, and the upper end of the supporting plate is fixedly connected with the gear motor. The upper end of the supporting plate is fixedly connected with a top plate. According to the utility model, through the effect of the designed air cylinder, the fixed rod can drive the gland to move downwards for pressure detection, in the downward moving process of the fixed rod, the fixed rod can drive the hinge rod to move, the hinge rod can push the guide block and the ball to slide along the fixed seat, and the movement of the fixed rod can be guided, so that the movement of the gland can be more accurate; and meanwhile, the guide block moves to extrude the sponge cushion, lubricating oil added into the sponge cushion can be extruded and discharged, the guide block and the balls can be conveniently lubricated, and abrasion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure testing devices, in particular to a dynamic pressure testing device for air tightness of a water pump impeller. Background Art

[0002] Water pump impellers are widely used in the cooling of engines such as motorcycles and cars. The engines need to be cooled frequently during long-term operation to ensure the normal operation and service life of the engines. The water pump impeller drives the coolant to circulate continuously to help the engine cool down. Therefore, the pressure test of the air tightness between the water pump impeller and the right cover of the motorcycle is particularly important. The utility model patent with the patent authorization announcement number CN217953803U discloses a dynamic pressure test device for air tightness of water pump impellers, which relates to the technical field of air tightness detection of motorcycle water pump impellers, and includes a frame, on which a workbench is arranged; a motor, which is mounted on the workbench; a reducer, which is mounted on the workbench, which is connected to the motor, and the water pump impeller to be inspected is mounted on the right cover of the motorcycle. During the inspection, the water pump impeller is connected to the reducer; a pressure test device, which includes a pressure test cylinder and a pressure test upper cover, which is arranged on the pressure test cylinder, and the pressure test cylinder drives the pressure test upper cover to press the water pump impeller down; an air source, which is connected to the right cover of the motorcycle to be tested. After adopting the above technical scheme, the utility model can simulate the engine starting, dynamically detect the air tightness between the water pump impeller and the right cover of the motorcycle, improve the accuracy of pressure detection, and reduce the working hours.

[0003] In the above-mentioned prior art, during the use of the pressure inspection device, the pressure inspection cover is driven by the cylinder to move, and it is inconvenient to guide the pressure inspection cover when it moves, which will affect the movement accuracy of the pressure inspection cover, and the pressure inspection cover may not fit the impeller, affecting the detection. At the same time, it is also inconvenient to disassemble the pressure inspection cover, and it is not convenient to replace or repair and maintain it. Therefore, improvements are needed. Utility Model Content

[0004] The utility model aims to provide a dynamic pressure inspection device for air tightness of a water pump impeller, which solves the problem of inconvenient guidance of the movement of a pressure inspection cover and the problem of inconvenient removal of a pressure reduction cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dynamic pressure inspection device for air tightness of a water pump impeller, comprising a base plate, the upper end of the base plate is fixedly connected to four evenly distributed support rods, the upper ends of the support rods are fixedly connected to a connecting plate, a reduction motor is arranged at the bottom of the connecting plate, the upper end of the connecting plate is fixedly connected to a support plate, the upper end of the support plate is fixedly connected to a top plate, the upper end of the top plate is fixedly connected to a cylinder, the output end of the cylinder is slidably connected to the top plate, the lower end of the output end of the cylinder is fixedly connected to a fixing rod, the lower end of the fixing rod contacts a pressure cover, a guiding mechanism is arranged on the fixing rod, and a connecting mechanism is arranged on the pressure cover.

[0006] Preferably, a through slot is provided inside the top plate, and the output end of the cylinder is slidably connected inside the through slot. The through slot is designed so that the output end of the cylinder can slide in the through slot.

[0007] Preferably, the guide mechanism includes an articulated seat, the left and right ends of the fixed rod are fixedly connected with an articulated seat, the inside of the articulated seat is articulated with an articulated rod, the other end of the articulated rod is articulated with a guide block, the outside of the guide block is slidably sleeved with a fixed seat, the fixed seat is fixedly connected to the support plate, the upper and lower ends of the fixed seat are movably connected with balls, the balls are movably connected to the fixed seat, the inner side wall of the fixed seat is fixedly connected with a sponge pad, and the upper end of the fixed seat is internally connected with a cover through a thread. By designing a guide mechanism, the movement of the pressure cover can be guided.

[0008] Preferably, the connection mechanism includes a slide seat, the outer side of the gland is slidably sleeved with two symmetrically distributed slide seats, the inner side of the slide seat is fixedly connected with a push rod, the push rod is slidably connected to the gland, the lower end of the push rod is fixedly connected with a slider, the slider is slidably connected to the gland, a spring is arranged inside the slider, the end of the push rod away from the slide seat is fixedly connected with a connecting rod, the connecting rod is slidably connected to the gland, the connecting rod is slidably connected to the fixed rod, the end of the connecting rod close to the inner side wall of the fixed rod is fixedly connected with an insert, the insert is slidably connected to the fixed rod. By designing the connection mechanism, it is convenient to disassemble the gland.

[0009] Preferably, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the gland. The spring is designed so that the force of the spring can act on the slider.

[0010] Preferably, a slot is provided inside the fixing rod, and an insert block is slidably connected inside the slot. The slot is designed so that the insert block can slide inside the slot.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can drive the gland to move downward for pressure inspection through the design of the cylinder. In the process of the fixed rod moving downward, the fixed rod can drive the hinged rod to move, and the hinged rod can push the guide block and the ball to slide along the fixed seat, so as to guide the movement of the fixed rod, thereby making the movement of the gland more accurate and preventing the gland from not fitting with the impeller and affecting the detection effect. At the same time, the movement of the guide block can squeeze the sponge pad, and the lubricating oil added in the sponge pad can be squeezed out, so as to facilitate the lubrication of the guide block and the ball and reduce wear.

[0013] 2. The utility model can connect and fix the gland and the fixing rod by designing the connection between the plug block and the slot. When the gland needs to be disassembled, the plug block and the slot can be separated by horizontally pushing the slide seat, so the gland can be easily separated from the fixing rod, which is convenient for replacing different glands or inspecting and maintaining the gland. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A front cross-sectional view of

[0016] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0017] Figure 4 For this utility model Figure 2 The enlarged view of point B;

[0018] Figure 5 For this utility model Figure 4 A three-dimensional diagram of the gland structure.

[0019] In the figure: 1, bottom plate; 2, support rod; 3, reduction motor; 4, connecting plate; 5, support plate; 6, top plate; 7, cylinder; 8, guide mechanism; 9, connecting mechanism; 10, through groove; 11, fixing rod; 12, pressure cover; 81, hinged seat; 82, hinged rod; 83, guide block; 84, fixing seat; 85, ball bearing; 86, sponge pad; 87, cover; 91, sliding seat; 92, top rod; 93, slider; 94, spring; 95, connecting rod; 96, plug block; 97, slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 A dynamic pressure inspection device for air tightness of a water pump impeller comprises a bottom plate 1, the upper end of the bottom plate 1 is fixedly connected with four evenly distributed support rods 2, the upper ends of the support rods 2 are fixedly connected with a connecting plate 4, a reduction motor 3 is arranged at the bottom of the connecting plate 4, the upper end of the connecting plate 4 is fixedly connected with a support plate 5, the upper end of the support plate 5 is fixedly connected with a top plate 6, the upper end of the top plate 6 is fixedly connected with a cylinder 7, the output end of the cylinder 7 is slidably connected to the top plate 6, a through groove 10 is opened inside the top plate 6, the output end of the cylinder 7 is slidably connected to the inside of the through groove 10, the output end of the cylinder 7 can slide in the through groove 10 by designing the through groove 10, the lower end of the output end of the cylinder 7 is fixedly connected with a fixing rod 11, the lower end of the fixing rod 11 contacts with a pressure cover 12, a guide mechanism 8 is arranged on the fixing rod 11, and a connecting mechanism 9 is arranged on the pressure cover 12.

[0022] See also Figure 1 , Figure 2 , Figure 3 The guide mechanism 8 includes an articulated seat 81, the left and right ends of the fixed rod 11 are fixedly connected with the articulated seat 81, the interior of the articulated seat 81 is articulated with an articulated rod 82, the other end of the articulated rod 82 is articulated with a guide block 83, the outer side of the guide block 83 is slidably sleeved with a fixed seat 84, the fixed seat 84 is fixedly connected to the support plate 5, the upper and lower ends of the fixed seat 84 are movably connected with ball bearings 85, the ball bearings 85 are movably connected to the fixed seat 84, the inner side wall of the fixed seat 84 is fixedly connected with a sponge pad 86, and the upper end of the fixed seat 84 is internally connected with a cover 87 through a thread. By designing the guide mechanism 8, the movement of the pressure cover 12 can be guided.

[0023] See also Figure 1 , Figure 2 , Figure 4 , Figure 5The connecting mechanism 9 includes a slide seat 91. The outer side of the pressure cover 12 is slidably sleeved with two symmetrically distributed slide seats 91. The inner side of the slide seat 91 is fixedly connected with a push rod 92. The push rod 92 is slidably connected to the pressure cover 12. The lower end of the push rod 92 is fixedly connected with a slider 93. The slider 93 is slidably connected to the pressure cover 12. A spring 94 is arranged inside the slider 93. One end of the spring 94 is fixedly connected to the slider 93, and the other end of the spring 94 is fixedly connected to the pressure cover 12. By designing the spring 94, the force of the spring 94 can act on the slider 93. The end of the push rod 92 away from the slide seat 91 is fixedly connected with a connecting rod 95, the connecting rod 95 is slidably connected to the pressure cover 12, the connecting rod 95 is slidably connected to the fixed rod 11, and the end of the connecting rod 95 close to the inner wall of the fixed rod 11 is fixedly connected with an insert block 96, the insert block 96 is slidably connected to the fixed rod 11, a slot 97 is provided inside the fixed rod 11, and the insert block 96 is slidably connected inside the slot 97. By designing the slot 97, the insert block 96 can slide in the slot 97, and by designing the connecting mechanism 9, it is convenient to disassemble the pressure cover 12.

[0024] The specific implementation process of the utility model is as follows: when in use, the impeller is first installed on the output end of the reduction motor 3, and then the output end of the cylinder 7 drives the fixed rod 11 and the pressure cover 12 to move downward. When the fixed rod 11 moves, the fixed rod 11 drives the hinge seat 81 to move, the hinge seat 81 drives the hinge rod 82 to deflect, and the hinge rod 82 drives the guide block 83 to move horizontally. The guide block 83 will slide along the fixed seat 84, and at the same time, the guide block 83 drives the ball 85 to slide along the inner wall of the fixed seat 84, thereby guiding the movement of the fixed rod 11, so that the movement of the pressure cover 12 can be more accurate, and the pressure cover 12 and the impeller are prevented from not fitting and affecting the detection effect. At the same time, the movement of the guide block 83 can squeeze the sponge pad 86, and the lubricating oil added in the sponge pad 86 can be squeezed out, which is convenient for lubricating the guide block 83 and the ball 85 and reducing wear. When the pressure cover 12 contacts the impeller, the output end of the reduction motor 3 drives the impeller to rotate to perform a dynamic pressure test on it. When it is necessary to disassemble the pressure cover 12, the slide 91 is directly pushed in the direction close to the pressure cover 12. The slide 91 drives the push rod 92 to move horizontally, and the push rod 92 drives the slide block 93 to move horizontally. The slide block 93 squeezes the spring 94. At the same time, the push rod 92 drives the connecting rod 95 to move, and the connecting rod 95 slides along the fixed rod 11. The connecting rod 95 also drives the plug block 96 to move horizontally, so that the plug block 96 is separated from the slot 97. Then, the pressure cover 12 is moved down to take out the connecting rod 95 and the plug block 96 from the inside of the fixed rod 11 to disassemble the pressure cover 12, which is convenient for replacing different pressure covers 12 or inspecting and maintaining the pressure cover 12.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic pressure test device for air tightness of a water pump impeller, comprising a bottom plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to four evenly distributed support rods (2), the upper end of the support rod (2) is fixedly connected to a connecting plate (4), a reduction motor (3) is arranged at the bottom of the connecting plate (4), the upper end of the connecting plate (4) is fixedly connected to a support plate (5), the upper end of the support plate (5) is fixedly connected to a top plate (6), the upper end of the top plate (6) is fixedly connected to a cylinder (7), the output end of the cylinder (7) is slidably connected to the top plate (6), the lower end of the output end of the cylinder (7) is fixedly connected to a fixing rod (11), the lower end of the fixing rod (11) contacts a pressure cover (12), a guiding mechanism (8) is arranged on the fixing rod (11), and a connecting mechanism (9) is arranged on the pressure cover (12).

2. The dynamic pressure testing device for air tightness of a water pump impeller according to claim 1 is characterized in that: A through slot (10) is provided inside the top plate (6), and the output end of the cylinder (7) is slidably connected inside the through slot (10).

3. The dynamic pressure testing device for air tightness of a water pump impeller according to claim 1 is characterized in that: The guide mechanism (8) comprises an articulated seat (81), the left and right ends of the fixed rod (11) are fixedly connected to the articulated seat (81), the interior of the articulated seat (81) is articulated with an articulated rod (82), the other end of the articulated rod (82) is articulated with a guide block (83), the outer side of the guide block (83) is slidably sleeved with a fixed seat (84), the fixed seat (84) is fixedly connected to the support plate (5), the upper and lower ends of the fixed seat (84) are movably connected with ball bearings (85), the ball bearings (85) are movably connected to the fixed seat (84), the inner side wall of the fixed seat (84) is fixedly connected with a sponge pad (86), and the upper end of the fixed seat (84) is internally connected with a cover (87) through a thread.

4. The dynamic pressure testing device for air tightness of a water pump impeller according to claim 1 is characterized in that: The connecting mechanism (9) comprises a sliding seat (91), the outer side of the pressure cover (12) is slidably sleeved with two symmetrically distributed sliding seats (91), the inner side of the sliding seat (91) is fixedly connected with a push rod (92), the push rod (92) is slidably connected to the pressure cover (12), the lower end of the push rod (92) is fixedly connected with a slider (93), the slider (93) is slidably connected to the pressure cover (12), a spring (94) is arranged inside the slider (93), the end of the push rod (92) away from the sliding seat (91) is fixedly connected with a connecting rod (95), the connecting rod (95) is slidably connected to the pressure cover (12), the connecting rod (95) is slidably connected to the fixed rod (11), the end of the connecting rod (95) close to the inner side wall of the fixed rod (11) is fixedly connected with an insert block (96), the insert block (96) is slidably connected to the fixed rod (11).

5. The dynamic pressure testing device for air tightness of a water pump impeller according to claim 4 is characterized in that: One end of the spring (94) is fixedly connected to the slider (93), and the other end of the spring (94) is fixedly connected to the pressure cover (12).

6. The dynamic pressure testing device for air tightness of a water pump impeller according to claim 1, characterized in that: A slot (97) is provided inside the fixing rod (11), and an insert block (96) is slidably connected inside the slot (97).

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