Sealing pump cover for high-lift vortex pump

Abstract

The utility model relates to the technical field of sealing pump covers, and discloses a sealing pump cover for a high-lift vortex pump, which comprises a pump cover and a sealing gasket, an auxiliary mechanism is arranged in the pump cover, and a positioning mechanism is arranged in the pump cover. By arranging a clamping block, an arc-shaped plate, a first sliding plate and an ejection block are conveniently limited, so that the ejection block is prevented from always applying downward force to a positioning ring, abrasion of the positioning ring and an insertion block is reduced, a hand wheel is rotated to enable a threaded column and the clamping block to move, and therefore limiting work on the arc-shaped plate is relieved; according to the sealing gasket replacing device, the top block is driven to move, so that the positioning ring and the sealing gasket are pushed to move, the sealing gasket is conveniently replaced, the sealing gasket is conveniently limited by arranging a hand-holding block, rotating the sealing gasket and matching an inserting block with a second spring, and by pulling a pull ring, the inserting block is made to be away from the positioning ring, and limiting of the sealing gasket is conveniently relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed pump covers, in particular to a sealed pump cover for a high-lift vortex pump. Background Art

[0002] The high-lift vortex pump is mainly composed of an impeller, a pump body and a pump cover. The impeller is a disc, and the blades on the circumference are evenly arranged in a radial pattern. An annular flow channel is formed between the pump body and the impeller, and the suction port and the discharge port are both on the outer circumference of the impeller. The main function of the pump cover is to seal and tighten to ensure the normal operation of the high-lift vortex pump.

[0003] According to a pump cover sealing structure disclosed in the patent website (authorization announcement number: CN 220015463 U), "the utility model discloses a pump cover sealing structure, which relates to the technical field of pump covers, including a pump cover, a sealing ring is arranged on the lower side of the pump cover, and a clamping mechanism is arranged on the upper side of the sealing ring; the clamping mechanism includes a slider fixedly connected to the upper side of the sealing ring, a first mounting groove is provided on the lower side of the pump cover, and the slider is slidably connected to the inside of the first mounting groove, and a second mounting groove is provided inside the pump cover, which improves the problem that the sealing ring and the pump cover body are connected by bolts, so that a screwdriver needs to be used during installation, which requires people to carry a screwdriver at all times, which is not convenient. In the device, the clamping block can limit the slider through the clamping groove, so that the sealing ring can be stabilized on the lower side of the pump cover, and there is no need to use bolts to connect the pump cover and the sealing ring, and there is no need to use a screwdriver, which can be completed by hand, so people do not need to carry a screwdriver at all times, and there will be no phenomenon of forgetting to bring a screwdriver and being unable to install the sealing ring."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use of the utility model, since the connecting rod is pulled to drive the card block out of the card slot, the second spring can automatically pop out the pressure block and the slider, so that the slider can no longer be limited by the card block. However, during use, since the second spring lacks a limit, when the second pressure block squeezes the second spring, it cannot be guaranteed that the second spring is squeezed into the second hollow groove. When installing the sealing ring, the card slot and the card block need to be positioned before the subsequent limiting work of the card block can be carried out. This is relatively inconvenient in actual operation. Therefore, it is necessary to improve a sealing pump cover for high-lift vortex pumps to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a sealing pump cover for a high-lift vortex pump to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealed pump cover for a high-lift vortex pump, comprising a pump cover and a sealing gasket, an auxiliary mechanism is arranged inside the pump cover, and a positioning mechanism is arranged inside the pump cover.

[0008] The auxiliary mechanism comprises an ejection assembly and a limiting assembly. The ejection assembly is arranged inside the pump cover, and the limiting assembly is arranged inside the pump cover.

[0009] Preferably, the ejection assembly includes a first slide plate, which is slidably mounted inside the pump cover, a first spring is fixedly mounted between the first slide plate and the pump cover, a top block is fixedly mounted on the bottom of the first slide plate, the top block is slidably mounted on the pump cover, an arc plate is fixedly mounted on the outside of the first slide plate, the arc plate is slidably mounted on the pump cover, a positioning ring is fixedly mounted on the top of the sealing gasket, the positioning ring is movably mounted on the pump cover, and a hand block is fixedly mounted on the outside of the sealing gasket to facilitate the removal of the sealing gasket.

[0010] Preferably, the limiting assembly includes a connecting frame, the connecting frame is fixedly mounted on the outside of the arc plate, a threaded column is installed on the internal thread of the connecting frame, a handwheel is fixedly installed on one end of the threaded column, a clamping block is rotatably installed on the end of the threaded column away from the handwheel, and the limiting column is fixedly installed on the outer side of the clamping block to facilitate the limiting work of the arc plate.

[0011] Preferably, a groove is provided inside the pump cover at a position corresponding to the clamping block, and the clamping block is inserted into the groove to facilitate the limiting work of the arc plate.

[0012] Preferably, a through hole is provided inside the connecting frame at a position corresponding to the limiting column, and the limiting column is slidably installed in the through hole to facilitate the limiting work of the block.

[0013] Preferably, the positioning mechanism includes a connecting shell, which is fixedly mounted inside the pump cover, a second slide is slidably mounted on the inner wall of the connecting shell, an insert is fixedly mounted on the inner side of the second slide, the insert is slidably mounted with the connecting shell, a sliding column is fixedly mounted on the outer side of the second slide, the sliding column is slidably mounted with the connecting shell, a second spring is fixedly mounted between the second slide and the connecting shell, and a pull ring is fixedly mounted on the end of the sliding column away from the second slide to facilitate the limiting work of the sealing gasket.

[0014] Preferably, a through groove is provided inside the positioning ring at a position corresponding to the inserting block, and the inserting block is slidably installed in the through groove, so as to facilitate the limiting work of the positioning ring.

[0015] Compared with the prior art, the utility model provides a sealed pump cover for a high-lift vortex pump, which has the following beneficial effects:

[0016] 1. The sealing pump cover for the high-lift vortex pump, through the auxiliary mechanism, is convenient for the rapid positioning of the sealing gasket during use through the positioning ring and the hand block, and is convenient for the subsequent limiting of the sealing gasket. The setting of the clamping block facilitates the limiting of the arc plate, the first slide plate and the top block, thereby avoiding the top block always giving the positioning ring a downward force, reducing the wear of the positioning ring and the insert block, and rotating the hand wheel to move the threaded column and the clamping block to release the limiting work of the arc plate. With the cooperation of the first spring, the top block moves, thereby pushing the positioning ring and the sealing gasket to move, which is convenient for replacing the sealing gasket.

[0017] 2. The sealing pump cover for the high-lift vortex pump has a positioning mechanism. During use, the sealing gasket is pushed so that the positioning ring squeezes the insert block. The sealing gasket is rotated by the hand block. With the cooperation of the insert block and the second spring, the sealing gasket can be limited. The operation is faster. By pulling the pull ring, the second slide plate squeezes the second spring, so that the insert block is away from the positioning ring, which is convenient for releasing the limit on the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the structure of the ejector assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the position relationship of the second spring of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0024] Figure 6 This is a schematic diagram of the position relationship of the positioning mechanism of the utility model;

[0025] Figure 7 This is a schematic diagram of the position relationship of the second spring of the utility model.

[0026] In the figure: 1. pump cover; 2. sealing gasket; 3. auxiliary mechanism; 31. ejector assembly; 311. first slide plate; 312. first spring; 313. ejector block; 314. arc plate; 315. positioning ring; 316. hand block; 32. limit assembly; 321. connecting frame; 322. threaded column; 323. hand wheel; 324. clamping block; 325. limit column; 4. positioning mechanism; 401. connecting shell; 402. second slide plate; 403. plug-in block; 404. slide column; 405. second spring; 406. pull ring. DETAILED DESCRIPTION

[0027] 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.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1:

[0030] See also Figure 1-5 The utility model provides a technical solution: a sealed pump cover for a high-lift vortex pump, comprising a pump cover 1 and a sealing gasket 2, an auxiliary mechanism 3 is arranged inside the pump cover 1, and a positioning mechanism 4 is arranged inside the pump cover 1.

[0031] The auxiliary mechanism 3 includes an ejection assembly 31 and a limit assembly 32 . The ejection assembly 31 is arranged inside the pump cover 1 , and the limit assembly 32 is arranged inside the pump cover 1 .

[0032] Furthermore, the ejection assembly 31 includes a first slide plate 311, which is slidably installed inside the pump cover 1, and a first spring 312 is fixedly installed between the first slide plate 311 and the pump cover 1, a top block 313 is fixedly installed on the bottom of the first slide plate 311, and the top block 313 is slidably installed on the pump cover 1, an arc plate 314 is fixedly installed on the outside of the first slide plate 311, and the arc plate 314 is slidably installed on the pump cover 1, a positioning ring 315 is fixedly installed on the top of the sealing gasket 2, and the positioning ring 315 is movably installed on the pump cover 1, and a hand block 316 is fixedly installed on the outside of the sealing gasket 2 to facilitate the removal of the sealing gasket 2.

[0033] Furthermore, the limiting assembly 32 includes a connecting frame 321, which is fixedly mounted on the outside of the arc plate 314. A threaded column 322 is installed on the internal thread of the connecting frame 321, a handwheel 323 is fixedly installed on one end of the threaded column 322, a clamping block 324 is rotatably installed on the end of the threaded column 322 away from the handwheel 323, and a limiting column 325 is fixedly installed on the outer side of the clamping block 324 to facilitate the limiting work of the arc plate 314.

[0034] Furthermore, a groove is provided inside the pump cover 1 at a position corresponding to the clamping block 324 , and the clamping block 324 is inserted into the groove to facilitate the limiting work of the arc plate 314 .

[0035] Furthermore, a through hole is provided inside the connecting frame 321 at a position corresponding to the limiting column 325 , and the limiting column 325 is slidably installed in the through hole to facilitate the limiting work of the clamping block 324 .

[0036] Embodiment 2:

[0037] See also Figure 6-7 , and combined with Example 1, it is further obtained that the positioning mechanism 4 includes a connecting shell 401, the connecting shell 401 is fixedly installed inside the pump cover 1, a second slide plate 402 is slidably installed on the inner wall of the connecting shell 401, an insert block 403 is fixedly installed on the inner side of the second slide plate 402, the insert block 403 is slidably installed with the connecting shell 401, a sliding column 404 is fixedly installed on the outer side of the second slide plate 402, the sliding column 404 is slidably installed with the connecting shell 401, a second spring 405 is fixedly installed between the second slide plate 402 and the connecting shell 401, and a pull ring 406 is fixedly installed on one end of the sliding column 404 away from the second slide plate 402, so as to facilitate the limiting work of the sealing gasket 2.

[0038] Furthermore, a through slot is provided inside the positioning ring 315 at a position corresponding to the inserting block 403 , and the inserting block 403 is slidably installed in the through slot, so as to facilitate the limiting work of the positioning ring 315 .

[0039] In actual operation, when the device is used, the sealing gasket 2 is pushed so that the positioning ring 315 squeezes the plug block 403, and the sealing gasket 2 is rotated by the provided hand support block 316. With the cooperation of the plug block 403 and the second spring 405, the sealing gasket 2 is conveniently limited, and the operation is faster. By pulling the pull ring 406, the second slide plate 402 squeezes the second spring 405, so that the plug block 403 is away from the positioning ring 315, which is convenient for releasing the limit of the sealing gasket 2. 24, which is convenient for limiting the arc plate 314, the first slide plate 311 and the top block 313, so as to avoid the top block 313 always giving the positioning ring 315 a downward force, reducing the wear of the positioning ring 315 and the insert block 403, and by rotating the hand wheel 323, the threaded column 322 and the block 324 are moved, thereby releasing the limiting work of the arc plate 314, and with the cooperation of the first spring 312, the top block 313 is moved, thereby pushing the positioning ring 315 and the sealing gasket 2 to move, which is convenient for replacing the sealing gasket 2.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A sealed pump cover for a high-lift vortex pump, comprising a pump cover (1) and a sealing gasket (2), characterized in that: An auxiliary mechanism (3) is provided inside the pump cover (1), and a positioning mechanism (4) is provided inside the pump cover (1); The auxiliary mechanism (3) comprises an ejection assembly (31) and a limit assembly (32); the ejection assembly (31) is arranged inside the pump cover (1); and the limit assembly (32) is arranged inside the pump cover (1).

2. A sealed pump cover for a high-lift vortex pump according to claim 1, characterized in that: The ejection assembly (31) comprises a first slide plate (311), the first slide plate (311) is slidably mounted inside the pump cover (1), a first spring (312) is fixedly mounted between the first slide plate (311) and the pump cover (1), a top block (313) is fixedly mounted on the bottom of the first slide plate (311), the top block (313) is slidably mounted on the pump cover (1), an arc plate (314) is fixedly mounted on the outside of the first slide plate (311), the arc plate (314) is slidably mounted on the pump cover (1), a positioning ring (315) is fixedly mounted on the top of the sealing gasket (2), the positioning ring (315) is movably mounted on the pump cover (1), and a handhold block (316) is fixedly mounted on the outside of the sealing gasket (2).

3. A sealed pump cover for a high-lift vortex pump according to claim 2, characterized in that: The limiting assembly (32) comprises a connecting frame (321), wherein the connecting frame (321) is fixedly mounted on the outside of the arc-shaped plate (314), a threaded column (322) is installed on the internal thread of the connecting frame (321), a hand wheel (323) is fixedly mounted on one end of the threaded column (322), a clamping block (324) is rotatably mounted on one end of the threaded column (322) away from the hand wheel (323), and a limiting column (325) is fixedly mounted on the outer side of the clamping block (324).

4. A sealed pump cover for a high-lift vortex pump according to claim 3, characterized in that: A groove is provided inside the pump cover (1) at a position corresponding to the clamping block (324), and the clamping block (324) is inserted into the groove.

5. A sealed pump cover for a high-lift vortex pump according to claim 3, characterized in that: A through hole is provided inside the connecting frame (321) at a position corresponding to the limiting column (325), and the limiting column (325) is slidably installed in the through hole.

6. A sealed pump cover for a high-lift vortex pump according to claim 3, characterized in that: The positioning mechanism (4) includes a connecting shell (401), the connecting shell (401) is fixedly installed inside the pump cover (1), a second slide plate (402) is slidably installed on the inner wall of the connecting shell (401), an insert block (403) is fixedly installed on the inner side of the second slide plate (402), the insert block (403) is slidably installed with the connecting shell (401), a sliding column (404) is fixedly installed on the outer side of the second slide plate (402), the sliding column (404) is slidably installed with the connecting shell (401), a second spring (405) is fixedly installed between the second slide plate (402) and the connecting shell (401), and a pull ring (406) is fixedly installed on one end of the sliding column (404) away from the second slide plate (402).

7. A sealed pump cover for a high-lift vortex pump according to claim 6, characterized in that: A through slot is provided inside the positioning ring (315) at a position corresponding to the inserting block (403), and the inserting block (403) is slidably mounted in the through slot.

Images