High-air-tightness mechanical sealing device of water pump

Abstract

The utility model discloses a water pump high-air-tightness mechanical sealing device which comprises a movable ring, a connecting ring fixedly connected to the upper surface of the movable ring, and a rolling ball fixedly connected to the outer surface of the connecting ring. A clamping ring is fixedly connected to the lower surface of the static ring, a rotating groove is formed in the clamping ring, a rotating shaft is rotationally connected to the lower surface of the clamping ring, a clamping plate is fixedly connected to the side surface of the rotating shaft, a connecting block is fixedly connected to the upper surface of the clamping plate, a spring is fixedly connected to the inner surface of the clamping ring, and the end, away from the clamping ring, of the spring is fixedly connected with the connecting block. The inner surface of the clamping ring is fixedly connected with a motor, through cooperation of the spring, the telescopic rod, the connecting block, the rotating shaft and the clamping plate, the movable ring and the static ring can be conveniently and rapidly installed and connected, the installation time and the labor cost are saved, the installation accuracy can be guaranteed, human errors are reduced, and the installation quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a high-air-tightness mechanical sealing device for a water pump. Background Art

[0002] A mechanical seal is a sealing device used to seal the rotating shaft and the pump. It is a device that is maintained in contact by the fluid pressure of at least one pair of end faces perpendicular to the rotating axis, the elastic force of a compensation mechanism, and the cooperation of an auxiliary seal, and slides to prevent fluid leakage. However, existing devices are difficult to install and have poor sealing effects. For example, China has disclosed "a high-airtightness mechanical seal device for a water pump", and its application number is: "CN202221426334.1". It forms a U-shaped seal between the dynamic ring and the static ring by providing a U-shaped groove and a convex ring, which can improve the sealing between the dynamic ring and the static ring. However, it cannot improve the connection between the dynamic ring and the static ring by coating, and cannot prevent the working medium from leaking from the connection. It cannot install the dynamic ring and the static ring conveniently and quickly, thereby failing to save installation time and labor costs. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a high-air-tightness mechanical sealing device for a water pump. Through the cooperation of a connecting ring, a ball, a clamping ring, and a rotating groove, the connection between a dynamic ring and a static ring can be improved by a covering method, which can effectively prevent the working medium from leaking from the connection and ensure the sealing effect; through the cooperation of a spring, a telescopic rod, a connecting block, a rotating shaft, and a clamping plate, the dynamic ring and the static ring can be installed and connected conveniently and quickly, saving installation time and labor costs, and can ensure the accuracy of installation, reduce human errors, and improve installation quality.

[0004] The utility model also provides a high-airtightness mechanical seal device for a water pump, comprising: a dynamic ring, a connecting ring is fixedly connected to the upper surface of the dynamic ring, and a rolling ball is fixedly connected to the outer surface of the connecting ring; a static ring, a clamping ring is fixedly connected to the lower surface of the static ring, a rotating groove is arranged inside the clamping ring, a rotating shaft is rotatably connected to the lower surface of the clamping ring, a clamping plate is fixedly connected to the side surface of the rotating shaft, a connecting block is fixedly connected to the upper surface of the clamping plate, a spring is fixedly connected to the inner surface of the clamping ring, one end of the spring away from the clamping ring is fixedly connected to the connecting block, a motor is fixedly connected to the inner surface of the clamping ring, and a telescopic rod is fixedly connected to the output end of the motor, and the connection between the dynamic ring and the static ring can be improved by covering through the cooperation of the connecting ring, the rolling ball, the clamping ring, and the rotating groove, and the working medium can be effectively prevented from leaking from the connection to ensure the sealing effect; through the cooperation of the spring, the telescopic rod, the connecting block, the rotating shaft and the clamping plate, the dynamic ring and the static ring can be conveniently and quickly installed and connected, saving installation time and labor costs, and ensuring the accuracy of installation, reducing human errors, and improving the installation quality.

[0005] According to the high-airtightness mechanical sealing device for a water pump described in the utility model, one end of the telescopic rod away from the motor is fixedly connected to the connecting block, which can conveniently drive the telescopic rod to be retracted.

[0006] According to the high-airtightness mechanical sealing device for a water pump described in the utility model, a baffle is fixedly connected to the lower surface of the clamping ring, and the baffle is movably connected to the rotating shaft to limit the rotation position of the clamping plate.

[0007] According to the high-airtightness mechanical sealing device for a water pump described in the utility model, the rolling ball is movably connected to the clamping plate, and the rolling ball is slidably connected to the rotating groove, which can ensure the stable rotation of the dynamic ring.

[0008] According to the high-air-tightness mechanical sealing device for a water pump described in the utility model, the connecting ring is movably connected to the snap ring, and the rolling ball is movably connected to the snap ring, so that the connecting ring and the snap ring can be quickly connected.

[0009] According to the high-airtightness mechanical sealing device for a water pump described in the utility model, one side of the clamping plate is arc-shaped, and a sealing layer is fixedly connected to the outer surface of the clamping plate, which can ensure the sealing of the connection.

[0010] According to the high airtightness mechanical sealing device for a water pump described in the utility model, a connecting rod is fixedly connected to the outer surface of the motor, and a button is fixedly connected to one end of the connecting rod away from the motor, so that the motor can be better controlled.

[0011] According to the high-air-tightness mechanical sealing device for a water pump described in the utility model, the clamping plate is movably connected to the clamping ring, and the connecting rod is fixedly connected to the clamping ring, which can improve the stability of the equipment.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, this new type of high-airtightness mechanical sealing device for water pumps can improve the connection between the dynamic ring and the static ring by means of coating through the cooperation of the connecting ring, the rolling ball, the clamping ring, and the rotating groove, which can effectively prevent the working medium from leaking from the connection and ensure the sealing effect.

[0014] 2. Compared with the prior art, this new type of high-airtightness mechanical sealing device for water pumps can conveniently and quickly install and connect the dynamic ring and the static ring through the cooperation of springs, telescopic rods, connecting blocks, rotating shafts and clamping plates, saving installation time and labor costs, and can ensure the accuracy of installation, reduce human errors and improve installation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a three-dimensional structural diagram of the high airtightness mechanical sealing device for a water pump of the utility model;

[0017] Figure 2 This is a schematic diagram of the clamping ring connection structure of the high airtightness mechanical sealing device of the water pump of the utility model;

[0018] Figure 3 This is a schematic diagram of the card plate connection structure of the high airtightness mechanical seal device for a water pump of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the connecting ring connection structure of the high airtightness mechanical sealing device of the water pump.

[0020] Legend:

[0021] 1. Moving ring; 2. Connecting ring; 3. Rolling ball; 4. Motor; 5. Snap ring; 6. Static ring; 7. Rotating groove; 8. Spring; 9. Telescopic rod; 10. Connecting block; 11. Clamp plate; 12. Rotating shaft. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment is a high-airtightness mechanical seal device for a water pump, which includes: a dynamic ring 1, the upper surface of the dynamic ring 1 is fixedly connected with a connecting ring 2 for connecting a clamping ring 5, the outer surface of the connecting ring 2 is fixedly connected with a rolling ball 3 for rolling with the dynamic ring 1; a static ring 6, the lower surface of the static ring 6 is fixedly connected with a clamping ring 5 for fixedly connecting the connecting ring 2 and the dynamic ring 1, a rotating groove 7 is provided in the clamping ring 5 for rolling the rolling ball 3, the lower surface of the clamping ring 5 is rotatably connected with a rotating shaft 12 for driving the clamping plate 11 to rotate, and the rotating shaft 1 2 is fixedly connected to the side surface of the card plate 11 for sealing the card ring 5, the upper surface of the card plate 11 is fixedly connected to the connecting block 10 for connecting the card plate 11 and the telescopic rod 9, the inner surface of the card ring 5 is fixedly connected to the spring 8 for following the expansion and contraction of the card plate 11, the end of the spring 8 away from the card ring 5 is fixedly connected to the connecting block 10 for fixing the spring 8, the inner surface of the card ring 5 is fixedly connected to the motor 4 for driving the telescopic rod 9, the output end of the motor 4 is fixedly connected to the telescopic rod 9 for pulling back the connecting block 10 and the card plate 11.

[0024] One end of the telescopic rod 9 away from the motor 4 is fixedly connected to the connecting block 10 for fixing the other end of the telescopic rod 9. A baffle is fixedly connected to the lower surface of the snap ring 5, and the baffle is movably connected to the rotating shaft 12 for limiting the position of the clamping plate 11. The ball 3 is movably connected to the clamping plate 11 for the ball 3 to squeeze the clamping plate 11. The ball 3 is slidably connected to the rotating groove 7. The connecting ring 2 is movably connected to the clamping ring 5 for connecting the dynamic ring 1 and the static ring 6. The ball 3 is movably connected to the clamping ring 5 for the ball 3 to enter the rotating groove 7. One side of the clamping plate 11 is arc-shaped for connecting the connecting ring 2. A sealing layer is fixedly connected to the outer surface of the clamping plate 11 for sealing the connection of the clamping plate 11. A connecting rod is fixedly connected to the outer surface of the motor 4 for connecting the motor 4 and a button. A button is fixedly connected to the end of the connecting rod away from the motor 4 for controlling the motor 4 to retract the telescopic rod 9. The clamping plate 11 is movably connected to the clamping ring 5, and the connecting rod is fixedly connected to the clamping ring 5 for supporting the connecting rod.

[0025] Working principle: When in use, align the ball 3 on the connecting ring 2 with the rotating shaft 12, and then push the ball 3 into the retaining ring 5. Then due to the squeezing of the ball 3, the spring 8 contracts and the telescopic rod 9 follows the expansion and contraction, and then the ball 3 enters the rotating groove 7. The moving ring 1 is connected to the static ring 6 through the connecting ring 2, the retaining ring 5, and then the ball 3 slides in the rotating groove 7 to drive the moving ring 1 to rotate. When taking it out, press the button, the motor 4 contracts the telescopic rod 9 and drives the rotating shaft 12 to be retracted.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high airtight mechanical sealing device for a water pump, characterized in that: include: A moving ring (1), wherein the upper surface of the moving ring (1) is fixedly connected to a connecting ring (2), and the outer surface of the connecting ring (2) is fixedly connected to a rolling ball (3); A stationary ring (6), the lower surface of the stationary ring (6) is fixedly connected to a clamping ring (5), a rotating groove (7) is provided in the clamping ring (5), the lower surface of the clamping ring (5) is rotatably connected to a rotating shaft (12), the side surface of the rotating shaft (12) is fixedly connected to a clamping plate (11), the upper surface of the clamping plate (11) is fixedly connected to a connecting block (10), the inner surface of the clamping ring (5) is fixedly connected to a spring (8), one end of the spring (8) away from the clamping ring (5) is fixedly connected to the connecting block (10), the inner surface of the clamping ring (5) is fixedly connected to a motor (4), and the output end of the motor (4) is fixedly connected to a telescopic rod (9).

2. A high airtight mechanical sealing device for a water pump according to claim 1, characterized in that: One end of the telescopic rod (9) away from the motor (4) is fixedly connected to the connecting block (10).

3. A high airtight mechanical sealing device for a water pump according to claim 1, characterized in that: A baffle is fixedly connected to the lower surface of the clamping ring (5), and the baffle is movably connected to the rotating shaft (12).

4. A high airtight mechanical sealing device for a water pump according to claim 1, characterized in that: The rolling ball (3) is movably connected to the clamping plate (11), and the rolling ball (3) is slidably connected to the rotating groove (7).

5. A high airtight mechanical sealing device for a water pump according to claim 1, characterized in that: The connecting ring (2) is movably connected to the snap ring (5), and the rolling ball (3) is movably connected to the snap ring (5).

6. A high airtight mechanical seal device for a water pump according to claim 1, characterized in that: One side of the clamping plate (11) is in an arc shape, and a sealing layer is fixedly connected to the outer surface of the clamping plate (11).

7. A high airtight mechanical seal device for a water pump according to claim 1, characterized in that: A connecting rod is fixedly connected to the outer surface of the motor (4), and a button is fixedly connected to one end of the connecting rod away from the motor (4).

8. A high airtight mechanical seal device for a water pump according to claim 7, characterized in that: The clamping plate (11) is movably connected to the clamping ring (5), and the connecting rod is fixedly connected to the clamping ring (5).

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