Horizontal industrial pump convenient to maintain

Abstract

The utility model relates to the technical field of centrifugal pumps, in particular to a horizontal industrial pump convenient to maintain, which comprises a base, a motor fixedly connected to one side of the top end surface of the base and a pump body fixedly connected to the other side of the top end surface of the base, and is characterized in that the output end of the motor is connected with the input end of the pump body through a coupler; a protection shell used for protecting the coupler is arranged between the motor and the pump body and comprises a bottom shell, a sealing cover rotationally connected to the bottom shell and a locking structure used for temporarily locking the sealing cover to the bottom shell, the bottom shell is arranged on the base, and by means of the arrangement of the protection shell, the coupler can be prevented from being abraded or damaged due to external factors; and meanwhile, by means of the arrangement of the locking structure, stable connection between the bottom shell and the sealing cover is achieved, when maintenance is needed, a plurality of bolts do not need to be screwed with the help of tools, the sealing cover can be opened to maintain the coupler only by unlocking the locking structure, and the maintenance efficiency of the coupler part is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of centrifugal pump technology, and in particular to a horizontal industrial pump that is easy to maintain. Background Technology

[0002] Centrifugal pumps are commonly used in industrial and urban water supply and drainage, hot and cold water circulation pressurization, and equipment matching. They rely on the high-speed rotation of the impeller to generate centrifugal motion in the liquid, thereby achieving liquid pressurization and transportation. During the operation of a centrifugal pump, the pump body and the motor are connected by a coupling. To avoid damage to the coupling and to prevent accidental contact by personnel, a coupling cover is usually installed at the connection between the pump body and the motor.

[0003] However, most existing coupling covers are fixed with bolts, and these bolts are often in a tightened state. When it is necessary to disassemble and repair the inside of the coupling cover, tools must be used to complete the disassembly. Due to the large number of bolts and their high tightness, the entire disassembly process is not only cumbersome but also consumes a lot of manpower and time, greatly reducing maintenance efficiency and affecting the normal use and maintenance of centrifugal pumps. This situation needs improvement. Utility Model Content

[0004] To improve maintenance efficiency, this application provides a horizontal industrial pump that is easy to maintain.

[0005] This application provides a horizontal industrial pump that is easy to maintain, employing the following technical solution:

[0006] A horizontal industrial pump that is easy to maintain includes a base, a motor fixedly connected to one side of the top surface of the base, and a pump body fixedly connected to the other side of the top surface of the base. The pump body is characterized in that: the output end of the motor is connected to the input end of the pump body via a coupling; a protective shell for protecting the coupling is provided between the motor and the pump body; the protective shell includes a bottom shell, a cover rotatably connected to the bottom shell, and a locking structure for temporarily locking the cover onto the bottom shell; the bottom shell is disposed on the base.

[0007] By adopting the above technical solution and utilizing the protective shell between the motor and the pump body, the coupling can be protected from wear or damage caused by external factors, thereby ensuring the normal operation and transmission efficiency of the coupling. At the same time, the locking structure ensures a stable connection between the bottom shell and the cover. When maintenance is required, there is no need to use tools to tighten multiple bolts. Simply by releasing the locking structure, the cover can be opened to maintain the coupling, significantly improving the maintenance efficiency of the coupling.

[0008] Preferably, the locking structure includes a convex ring, a latch for engaging the convex ring, and a U-shaped lock. The convex ring is disposed on the side wall of the bottom shell, the latch is rotatably connected to the cover, the latch is provided with a latching hole for engaging with the convex ring, and the end of the U-shaped lock passes through the convex ring and is locked.

[0009] By adopting the above technical solution, when in use, the latch is first fastened onto the convex ring, and then one end of the U-shaped lock is passed through the convex ring, thereby locking the latch between the convex ring and the U-shaped lock, thus achieving the locking between the bottom shell and the cover. During maintenance, the staff only needs to open the U-shaped lock and rotate the latch to separate the bottom shell and the cover. The operation is intuitive and convenient, greatly reducing the difficulty and time cost of maintenance.

[0010] Preferably, the locking structure includes a limiting rod, a snap-fit ​​block, and a return spring. The limiting rod is disposed inside the cover and has a snap-fit ​​groove for engaging with the snap-fit ​​block. One end of the return spring is disposed on the inner wall of the bottom shell, and the other end is connected to the snap-fit ​​block. The snap-fit ​​block has a pull-holding unit for easy unlocking.

[0011] By adopting the above technical solution, when the cover is closed, the locking block automatically engages with the locking groove of the limit rod to achieve quick locking; during maintenance, the locking block is released by pulling the holding unit, which is simple to operate, requires no additional tools, and speeds up the maintenance process.

[0012] Preferably, the snap-fit ​​block is provided with a wedge-shaped surface to facilitate the downward movement of the limiting rod.

[0013] By adopting the above technical solution and utilizing the wedge-shaped surface on the locking block, the wedge-shaped surface provides guidance for the limiting rod during the sealing and closing process, allowing the limiting rod to move smoothly downward and enabling the locking block to engage with the limiting groove of the limiting rod, thus achieving fast and accurate locking, optimizing the locking process, and improving the user experience.

[0014] Preferably, the holding unit includes a pull rod, a threaded sleeve, and a pull ring. The pull ring is integrally formed on the threaded sleeve. One end of the pull rod is connected to the side of the locking block away from the limiting rod, and the other end of the pull rod is threaded to the inner wall of the threaded sleeve. The return spring is sleeved on the pull rod.

[0015] By adopting the above technical solution, the operator can pull the pull ring on the threaded sleeve, which in turn drives the pull rod and the locking block to extend and retract, thus precisely controlling the movement of the locking block. This makes it easy for the operator to release the lock between the locking block and the limit rod. The structure is simple and easy to operate.

[0016] Preferably, the cover includes a first half-cover and a second half-cover, which are rotatably connected to the bottom shell, and the first half-cover and the second half-cover are connected and fixed by a locking structure.

[0017] By adopting the above technical solution, the first half cover and the second half cover are connected and fixed by a locking structure. This design allows both the first half cover and the second half cover to be opened simply by releasing the locking structure during maintenance, which facilitates the staff to inspect or maintain the coupling and improves maintenance efficiency.

[0018] Preferably, the locking structure includes a rotating rod, a rocker arm rotatably connected to the rotating rod, and a reset torsion spring for driving the rocker arm to reset. The first half-cover is provided with a plug block, and the second half-cover is provided with a plug groove for forming a plug-in engagement with the plug block. The rotating rod is disposed on the second half-cover. The lower surface of the rocker arm abuts against the upper surface of the plug block. The reset torsion spring is sleeved on the rotating shaft, and one end of the reset torsion spring abuts against the rocker arm, while the other end abuts against the second half-cover.

[0019] By adopting the above technical solution, during maintenance, the staff only needs to overcome the elastic force of the reset torsion spring to press the pressing rocker. The pressing rocker rotates around the rotating rod, thereby releasing the limit on the plug block, thus realizing the separation of the first half cover and the second half cover, and thus enabling the coupling to be maintained, improving maintenance efficiency. At the same time, the reset torsion spring can ensure that the pressing rocker automatically resets when not in use, ensuring the stability and reliability of the locking structure.

[0020] Preferably, the second half-cover is provided with an adapter groove and a connecting spring for easily opening the plug block. The adapter groove is connected to the plug groove, and the connecting spring is disposed in the adapter groove. One end of the connecting spring is disposed on the second half-cover, and the other end forms an abutment fit with the plug block.

[0021] By adopting the above technical solution and utilizing the connecting spring, when the rocker is pressed up and the locking of the plug block is released, the elastic force of the connecting spring will push the plug block, causing the plug block to automatically pop out of the plug slot, thus realizing the separation of the first half cover and the second half cover, improving maintenance efficiency. Moreover, the connecting spring can buffer the impact force when the plug block is inserted into the plug slot, protecting the plug block and the plug slot, and extending the service life of the plug block.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By using a protective shell between the motor and the pump body, the coupling can be protected from wear or damage caused by external factors, thus ensuring the normal operation and transmission efficiency of the coupling. At the same time, the locking structure ensures a stable connection between the bottom shell and the cover. When maintenance is required, there is no need to use tools to tighten multiple bolts. Simply by releasing the locking structure, the cover can be opened to maintain the coupling, which significantly improves the maintenance efficiency of the coupling.

[0024] 2. When the cover is closed, the locking block automatically engages with the locking groove of the limit rod, achieving quick locking; during maintenance, the locking block is released by pulling the holding unit, which is simple to operate, requires no additional tools, and speeds up maintenance.

[0025] 3. During maintenance, the operator only needs to overcome the elastic force of the reset torsion spring to press the rocker. The rocker rotates around the rotating rod, thereby releasing the limit on the plug block and separating the first half cover and the second half cover. This allows for maintenance of the coupling, improving maintenance efficiency. At the same time, the reset torsion spring ensures that the rocker automatically resets when not in use, ensuring the stability and reliability of the locking structure. Attached Figure Description

[0026] Figure 1 This is an isometric schematic diagram of the main overall structure in Embodiment 1 of this application;

[0027] Figure 2 This is a structural diagram illustrating the relationship between the bottom shell, the cover, and the locking structure in Embodiment 1 of this application;

[0028] Figure 3 This is a cross-sectional view of the internal structure of the protective shell, as shown in Embodiment 2 of this application.

[0029] Figure 4 yes Figure 3 The image shows a magnified view of a section that primarily illustrates the working relationship between the locking structure and the holding unit.

[0030] Figure 5 This is a schematic diagram illustrating the state of the cap being in the open state, as shown in Embodiment 2 of this application.

[0031] Figure 6 This is an isometric schematic diagram of the main overall structure in Embodiment 3 of this application;

[0032] Figure 7 This is a schematic diagram illustrating the state in which the first half-cover and the second half-cover are separated, as shown in Embodiment 3 of this application.

[0033] Figure 8 This is a schematic diagram of the main locking structure in Embodiment 3 of this application.

[0034] Reference numerals: 1. Base; 2. Motor; 3. Pump body; 4. Protective shell; 41. Bottom shell; 411. Limiting groove; 42. Cover; 421. First half cover; 4211. Insertion block; 422. Second half cover; 4221. Insertion groove; 4222. Mounting frame; 4223. Adapter groove; 4224. Connecting spring; 43. Locking structure; 431. Protruding ring; 432. Buckle; 4 321. Snapping hole; 433. U-lock; 434. Limiting rod; 4341. Snap-fit ​​groove; 435. Snap-fit ​​block; 4351. Wedge-shaped surface; 436. Return spring; 437. Rotating rod; 438. Pressing rocker; 4381. Pressing part; 4382. Abutting part; 439. Return torsion spring; 44. Holding unit; 441. Pull rod; 442. Threaded sleeve; 443. Pull ring. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail.

[0036] This application discloses a horizontal industrial pump that is easy to maintain.

[0037] Example 1:

[0038] Reference Figure 1 and Figure 2 A horizontal industrial pump that is easy to maintain includes a base 1, a motor 2, and a pump body 3. The motor 2 and the pump body 3 are both bolted to the top surface of the base 1. The output end of the motor 2 is connected to the input end of the pump body 3 through a coupling. The coupling is covered with a protective shell 4, which is located between the motor 2 and the pump body 3. The protective shell 4 consists of a bottom shell 41, a cover 42, and a locking structure 43. The bottom shell 41 consists of two symmetrical L-shaped blocks. The two L-shaped blocks of the bottom shell 41 are fixed to the base 1 by bolts, and a protective space for the coupling is formed between the two L-shaped blocks. The cover 42 is rotatably connected to the edge of the bottom shell 41 through a rotating shaft. The locking structure 43 is used to lock the cover 42 onto the bottom shell 41.

[0039] Reference Figure 2 The locking structure 43 includes a convex ring 431, a latch 432, and a U-shaped lock 433. The convex ring 431 is welded to the side wall of the bottom shell 41. The latch 432 is rotatably connected to the edge of the cover 42 via a pivot, allowing the latch 432 to rotate around the pivot. The latch 432 has a fastening hole 4321 that matches the size of the convex ring 431, and the inner diameter of the fastening hole 4321 is larger than the outer diameter of the convex ring 431.

[0040] Reference Figure 2When in use, the operator rotates the buckle 432 so that the buckle 432's fastening hole 4321 engages with the protruding ring 431. The end of the U-shaped lock 433 passes through the protruding ring 431 and locks, preventing the buckle 432 from disengaging from the protruding ring 431.

[0041] The implementation principle of this application embodiment is as follows: When the cover 42 is closed, the buckle 432 is rotated to the position of the convex ring 431, so that the fastening hole 4321 is fastened on the convex ring 431, and the U-lock 433 is inserted to complete the locking; during maintenance, the staff can pull out the U-lock 433 with the key, and rotate the buckle 432 to make the buckle 432 disengage from the convex ring 431, so that the cover 42 can be easily opened, and the staff can maintain the coupling, thus improving the maintenance efficiency.

[0042] Example 2:

[0043] The difference between Example 2 and Example 1 is that:

[0044] Reference Figure 3 and Figure 4 The locking structure 43 includes a limiting rod 434, a snap-fit ​​block 435, and a return spring 436. The limiting rod 434 is integrally formed on the inner wall of the cover 42 and is vertically arranged.

[0045] Reference Figure 4 and Figure 5 The limiting rod 434 has a snap-fit ​​groove 4341, and the bottom shell 41 has a limiting groove 411 at the position corresponding to the limiting rod 434. The snap-fit ​​block 435 is slidably disposed in the limiting groove 411, and the snap-fit ​​block 435 and the snap-fit ​​groove 4341 form a snap-fit ​​engagement. One end of the return spring 436 is bonded to the inner wall of the limiting groove 411 of the bottom shell 41, and the other end forms an abutment engagement with the snap-fit ​​block 435.

[0046] Reference Figure 4 and Figure 5 The snap-fit ​​block 435 has a wedge-shaped surface 4351 machined on it. The shape and size of the snap-fit ​​groove 4341 of the limiting rod 434 are opened to correspond to the shape and size of the snap-fit ​​block 435, so that the specifications of the snap-fit ​​groove 4341 are adapted to the snap-fit ​​block 435. During the closing process of the cover 42, the wedge-shaped surface 4351 on the snap-fit ​​block 435 provides a guide for the limiting rod 434, so that the limiting rod 434 can move down smoothly. At the same time, the snap-fit ​​block 435 can be smoothly snapped into the limiting groove 411 of the limiting rod 434, so as to achieve fast and accurate locking.

[0047] Reference Figure 4 and Figure 5To facilitate the release of the locking of the limiting rod 434 by the staff, a holding unit 44 is provided on the snap-fit ​​block 435. The holding unit 44 includes a pull rod 441, a threaded sleeve 442 and a pull ring 443. One end of the pull rod 441 is welded to the side of the snap-fit ​​block 435 away from the limiting rod 434, and the other end of the pull rod 441 is threaded to the inner wall of the threaded sleeve 442. The reset spring 436 is sleeved on the pull rod 441, and the pull ring 443 is integrally formed on the threaded sleeve 442.

[0048] The implementation principle of this application embodiment is as follows: when the cover 42 is closed, the limiting rod 434 presses down on the wedge-shaped surface 4351 of the locking block 435, causing the locking block 435 to compress the return spring 436 and move backward. When the locking block 435 is fully engaged with the locking groove 4341, the position of the limiting rod 434 is locked, thereby stably fixing the cover 42 on the bottom shell 41.

[0049] When maintenance is required, the staff pulls the pull ring 443 outward, which causes the threaded sleeve 442 to move outward, so that the pull rod 441 connected to the threaded sleeve 442 drives the locking block 435 to disengage from the locking groove 4341, thereby releasing the lock on the limit rod 434, and the cover 42 can be opened for maintenance.

[0050] Example 3:

[0051] The difference between Example 3 and Example 1 is that:

[0052] Reference Figure 6 and Figure 7 The cover 42 includes a first half cover 421 and a second half cover 422 arranged symmetrically. The first half cover 421 and the second half cover 422 are rotatably connected to the bottom shell 41 by a rotating shaft. The joint between the first half cover 421 and the second half cover 422 is connected and fixed by a locking structure 43. During maintenance, the first half cover 421 and the second half cover 422 can be opened by simply releasing the locking structure 43, which makes it convenient for staff to inspect or maintain the coupling and improves maintenance efficiency.

[0053] Reference Figure 7 and Figure 8 The locking structure 43 includes a rotating rod 437, a pressing rocker 438, and a return torsion spring 439. A plug-in block 4211 is integrally formed on the first half cover 421. A plug-in groove 4221 and a mounting frame 4222 are provided on the second half cover 422. The plug-in block 4211 and the plug-in groove 4221 form a plug-in fit. The mounting frame 4222 is welded to the second cover and forms an installation space with the upper surface of the second half cover 422. The rotating rod 437, the pressing rocker 438, and the return torsion spring 439 are all set in the installation space.

[0054] Reference Figure 7 and Figure 8The two ends of the rotating rod 437 are fixedly installed on the top surface of the second half cover 422. The pressing rocker 438 includes a pressing part 4381 and an abutting part 4382. The pressing part 4381 and the abutting part 4382 are integrally formed. The abutting part 4382 extends out of the edge of the mounting groove and is located above the insertion groove 4221.

[0055] Reference Figure 7 and Figure 8 The pressing part 4381 of the pressing rocker 438 is rotatably connected to the rotating rod 437, and the lower surface of the abutting part 4382 of the pressing rocker 438 forms an abutting fit with the upper surface of the plug block 4211. The reset torsion spring 439 is sleeved on the rotating shaft, and one end of the reset torsion spring 439 abuts against the pressing rocker 438, and the other end abuts against the second half cover 422.

[0056] Reference Figure 7 and Figure 8 The second half cover 422 is provided with an adapter groove 4223. There are two adapter grooves 4223 spaced apart. Any adapter groove 4223 is connected to the insertion groove 4221. A connecting spring 4224 is provided in any insertion groove 4221 of the second half cover 422. One end of the connecting spring 4224 is attached to the second half cover 422, and the other end forms an abutment fit with the insertion block 4211.

[0057] The implementation principle of this application embodiment is as follows: When it is necessary to close the first half cover 421 and the second half cover 422, the operator first presses the pressing rocker 438 on the second half cover 422, so that the insertion block 4211 on the first half cover 421 is smoothly inserted into the insertion slot 4221 of the second half cover 422 and the connecting spring 4224 is compressed. Then the operator releases the pressing rocker 438, so that the abutting part 4382 of the pressing rocker 438 abuts and limits the insertion block 4211, thereby restricting the movement of the insertion block 4211.

[0058] When it is necessary to close the first half cover 421 and the second half cover 422, the operator first presses the pressing part 4381 of the rocker 438, causing the abutment part 4382 to lift up, thereby releasing the lock on the plug block 4211. At this time, the elastic force of the connecting spring 4224 will push the plug block 4211 to automatically pop out from the plug slot 4221, realizing the separation of the first half cover 421 and the second half cover 422, improving maintenance efficiency.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A horizontal industrial pump that is easy to maintain, comprising a base (1), a motor (2) fixedly connected to one side of the top surface of the base (1), and a pump body (3) fixedly connected to the other side of the top surface of the base (1), characterized in that: The output end of the motor (2) is connected to the input end of the pump body (3) through a coupling. A protective shell (4) for protecting the coupling is provided between the motor (2) and the pump body (3). The protective shell (4) includes a bottom shell (41), a cover (42) rotatably connected to the bottom shell (41), and a locking structure (43) for temporarily locking the cover (42) on the bottom shell (41). The bottom shell (41) is set on the base (1).

2. A maintenance-friendly horizontal industrial pump according to claim 1, characterized in that: The locking structure (43) includes a protruding ring (431), a latch (432) for fastening the protruding ring (431), and a U-shaped lock (433). The protruding ring (431) is disposed on the side wall of the bottom shell (41). The latch (432) is rotatably connected to the cover (42). The latch (432) is provided with a fastening hole (4321) for fastening with the protruding ring (431). The end of the U-shaped lock (433) passes through the protruding ring (431) and is locked.

3. A maintenance-friendly horizontal industrial pump according to claim 1, characterized in that: The locking structure (43) includes a limiting rod (434), a snap-fit ​​block (435), and a return spring (436). The limiting rod (434) is located inside the cover (42). The limiting rod (434) is provided with a snap-fit ​​groove (4341) for engaging with the snap-fit ​​block (435). One end of the return spring (436) is located on the inner wall of the bottom shell (41), and the other end is connected to the snap-fit ​​block (435). The snap-fit ​​block (435) is provided with a pull-holding unit (44) for easy unlocking.

4. A maintenance-friendly horizontal industrial pump according to claim 3, characterized in that: The snap-fit ​​block (435) is provided with a wedge-shaped surface (4351) to facilitate the downward movement of the limiting rod (434).

5. A maintenance-friendly horizontal industrial pump according to claim 3, characterized in that: The holding unit (44) includes a pull rod (441), a threaded sleeve (442), and a pull ring (443). The pull ring (443) is integrally formed on the threaded sleeve (442). One end of the pull rod (441) is connected to the side of the snap block (435) away from the limiting rod (434). The other end of the pull rod (441) is threaded to the inner wall of the threaded sleeve (442). The reset spring (436) is sleeved on the pull rod (441).

6. A maintenance-friendly horizontal industrial pump according to claim 1, characterized in that: The cover (42) includes a first half cover (421) and a second half cover (422). The first half cover (421) and the second half cover (422) are rotatably connected to the bottom shell (41), and the first half cover (421) and the second half cover (422) are connected and fixed by a locking structure (43).

7. A maintenance-friendly horizontal industrial pump according to claim 6, characterized in that: The locking structure (43) includes a rotating rod (437), a pressing rocker (438) rotatably connected to the rotating rod (437), and a reset torsion spring (439) for driving the pressing rocker (438) to reset. The first half cover (421) is provided with a plug block (4211), and the second half cover (422) is provided with a plug groove (4221) for forming a plug-in fit with the plug block (4211). The rotating rod (437) is provided on the second half cover (422). The lower surface of the pressing rocker (438) forms an abutment fit with the upper surface of the plug block (4211). The reset torsion spring (439) is sleeved on the rotating shaft, and one end of the reset torsion spring (439) abuts against the pressing rocker (438), and the other end abuts against the second half cover (422).

8. A maintenance-friendly horizontal industrial pump according to claim 7, characterized in that: The second half-cover (422) is provided with an adapter groove (4223) and a connecting spring (4224) to facilitate the opening of the plug-in block (4211). The adapter groove (4223) is connected to the plug-in groove (4221). The connecting spring (4224) is disposed in the adapter groove (4223). One end of the connecting spring (4224) is disposed on the second half-cover (422), and the other end forms an abutting fit with the plug-in block (4211).

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