Safe manual turning checking device for magnetic drive pump

Abstract

The utility model discloses a safe manual barring inspection device for a magnetic drive pump, and particularly relates to the technical field of magnetic drive pump maintenance, the safe manual barring inspection device comprises a base, a gear disc, an outer magnetic coupling, a pump body, a pump cover, a totally-enclosed connecting bracket and a motor, and the gear disc is fixedly arranged outside the outer magnetic coupling. According to the safe manual barring inspection device for the magnetic drive pump, the overall sealing performance of a pump structure does not need to be damaged, the environment-friendly effect of a use site is guaranteed, and meanwhile the possibility that accidents happen when workers on the site conduct manual barring inspection items is eradicated through the external barring device. Meanwhile, the mark and the rocker on the device can assist in judging whether motor steering is correct or not on site, and the problems of pump damage, insufficient pressure and the like caused by incorrect motor steering are solved. Therefore, the magnetic drive pump really achieves the leakage-free effect, and accidents caused by mechanical operation on site are avoided. And great help is provided for improving the environmental protection effect and the safety of a chemical use site.

Description

Technical Field

[0001] This utility model relates to the field of magnetic pump maintenance technology, and in particular to a safe manual turning inspection device for magnetic pumps. Background Technology

[0002] In the chemical industry, environmental protection and safety are paramount. The fully enclosed, seal-free design of magnetic drive pumps prevents the transported medium from leaking into the environment. However, due to this enclosed design, direct-coupled magnetic drive pumps cannot be manually rotated to check their internal operation. Furthermore, when equipped with a variable frequency motor, it's impossible to verify the motor's rotation direction, causing inconvenience for on-site use and maintenance. Previously, direct-coupled magnetic drive pumps typically had a window at the bottom of the support frame for easy manual rotation by workers touching the external magnet. However, this method not only compromises the pump's sealed structure, leading to environmental pollution should leaks occur, but also poses a safety hazard by requiring workers to reach into the support frame to rotate the external magnet, potentially causing injury. When equipped with a variable frequency motor, this design also fails to determine the correct motor rotation direction, requiring the removal of the motor fan, a cumbersome process. Utility Model Content

[0003] The main purpose of this invention is to provide a safe manual turning and inspection device for magnetic pumps, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A safe manual cranking inspection device for a magnetic pump includes a base, a gear disc, an external magnetic coupling, a pump body, a pump cover, a fully enclosed connecting bracket, and a motor. The gear disc is fixedly installed outside the external magnetic coupling. The fully enclosed connecting bracket has an inspection port at its bottom. The upper part of the outer surface of the base has an external thread that connects to the inspection port. A cover is fixedly installed at the bottom of the base. A sliding cavity is formed in the middle of the base, and a transmission rod is slidably connected within the sliding cavity. The top of the transmission rod passes through the base and is fixedly mounted with a helical gear that can couple with the gear disc. The bottom of the transmission rod passes through the cover and is fixedly mounted with a crank handle. Sliding bearings are provided between the transmission rod, the base, and the cover.

[0006] Preferably, a baffle is fixedly installed on the outer surface of the transmission rod, and the baffle slides within the sliding cavity.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] This utility model discloses a safe manual cranking inspection device for magnetic pumps. It does not compromise the overall sealing of the pump structure, ensuring environmental protection at the application site. Simultaneously, the external cranking device eliminates the possibility of accidents during manual cranking inspections by on-site workers. Furthermore, the markings and lever on the device assist in determining whether the motor rotation is correct, preventing pump damage and insufficient pressure caused by incorrect motor rotation. This achieves a truly leak-free effect for the magnetic pump and avoids accidents caused by mechanical operation on-site. It greatly contributes to improving environmental protection and safety at chemical application sites. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram showing the connection between the gear disk and the external magnetic coupling of this utility model;

[0011] Figure 3 This is an installation diagram of the present invention;

[0012] Figure 4 For the present utility model Figure 3 Enlarged diagram of point A in the middle.

[0013] In the diagram: 1. Base; 2. External thread; 3. Transmission rod; 4. Sliding bearing; 5. Cover; 6. Helical gear; 7. Baffle; 8. Handle; 9. Gear disc; 10. External magnetic coupling; 11. Pump body; 12. Pump cover; 13. Fully enclosed connecting bracket; 14. Motor; 101. Sliding cavity. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figure 1-4As shown, the system includes a base 1, a gear disk 9, an external magnetic coupling 10, a pump body 11, a pump cover 12, a fully enclosed connecting bracket 13, and a motor 14. The gear disk 9 is fixedly installed outside the external magnetic coupling 10. The fully enclosed connecting bracket 13 has an inspection port at its bottom. The upper part of the outer surface of the base 1 has an external thread 2, which is threaded to the inspection port. A cover 5 is fixedly installed at the bottom of the base 1. A sliding cavity 101 is formed in the middle of the base 1. A transmission rod 3 is slidably connected in the sliding cavity 101. The top of the transmission rod 3 passes through the base 1 and is fixedly mounted with a helical gear. 6. The helical gear 6 can be coupled with the gear disk 9. The bottom of the transmission rod 3 passes through the cover 5 and is fixedly mounted with a crank 8. Sliding bearings 4 are provided between the transmission rod 3, the base 1, and the cover 5. A baffle 7 is fixedly mounted on the outer surface of the transmission rod 3. The baffle 7 slides in the sliding cavity 101. By installing a manual cranking inspection device, the sealing of the support can be avoided. Even if leakage occurs, the leaked liquid can be sealed in the support cavity. Moreover, when using this device to crank, workers do not need to put their hands into the inner cavity; they only need to turn the crank to complete the cranking inspection, ensuring safety. At the same time, when the pump starts, it is very convenient to judge whether the pump is rotating correctly by simply observing the rotation direction of the cranking device.

[0016] The working principle of this utility model is as follows: During use, the helical gear 6 and the gear disk 9 on the external magnetic coupling 10 can be coupled by pushing the transmission rod 3 inward. Then, simply rotating the rocker arm at the other end of the transmission rod 3 will cause the external helical gear 6 to drive the gear disk 9 to rotate, which in turn drives the external magnetic coupling 10 to rotate, completing the manual rotation check. After completing the manual rotation, the transmission rod 3 can be pulled outward to disengage the helical gear 6 without affecting the normal operation of the pump. When confirming the rotation direction of the motor 14 for the first start-up, the helical gear 6 and gear disk 9 can be coupled to start the motor 14. The direction of rotation of the motor 14 can be determined by the direction markings on the device and the rotation direction of the rocker arm. After confirmation, the transmission rod 3 can be pulled out.

[0017] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safe magnetic pump hand turning inspection device, characterized in that: The utility model relates to a pump drive device, including base (1), gear disc (9), outer magnetic coupling (10), pump body (11), pump cover (12), totally enclosed connecting support (13) and motor (14), gear disc (9) fixed mounting is installed in outer magnetic coupling (10) outside, the bottom of totally enclosed connecting support (13) is opened and has overhauled mouth, the upper portion of base (1) outer surface is opened and is provided with outer thread (2), outer thread (2) are connected with overhauled mouth threadedly, base (1) bottom fixed mounting has sealing cover (5), base (1) middle part is opened and has sliding cavity (101), sliding cavity (101) inside slidingly connected with transmission rod (3), transmission rod (3) top penetrates base (1) and is fixedly installed with spiral gear (6), spiral gear (6) can be coupled with gear disc (9), transmission rod (3) bottom penetrates sealing cover (5) and is fixedly installed with rocking handle (8), transmission rod (3) with base (1) and sealing cover (5) between all be provided with sliding bearing (4).

2. A safe magnetic pump hand spinning inspection device according to claim 1, characterized in that: Transmission rod (3) outer surface fixedly installed with baffle (7), baffle (7) slide in sliding cavity (101) inside.

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