Water pump impeller with blades convenient to replace

Abstract

The water pump impeller comprises an impeller body and the blades, grooves are formed in the side wall of the impeller body, the blades are inserted into the grooves, through holes are formed in the side walls of the blades, bolts are inserted into the through holes, mounting grooves are formed in the side wall of the impeller body, and threaded sleeves are inserted into the mounting grooves. Bolts penetrate through the side walls of the blades and are rotationally installed on the threaded sleeves, rubber plugs are installed in the through holes in an inserted mode and can plug the through holes, limiting rings are installed on the outer sides of the threaded sleeves, the number of the limiting rings is two, the two limiting rings are located in the grooves and the installation grooves correspondingly, and each rubber plug comprises a rubber block, a protruding ring and a clamping groove. According to the device, the blades are installed on the impeller body through cooperation of the bolts and the threaded sleeves, when one blade is damaged, the blade can be detached and replaced by directly rotating the bolts, the purpose of independently replacing the blades is achieved, and the maintenance cost of a user is reduced.

Description

Technical Field

[0001] This patent relates to the technical field of water pump impellers, specifically a water pump impeller that is easy to replace blades. Background Art

[0002] The impeller of the water pump is made of cast iron. The blades on the impeller of the water pump play a major role. The shape and size of the impeller of the water pump are closely related to the performance of the water pump. The impeller of the water pump can generally be divided into two types: single suction and double suction! The single suction impeller absorbs water on one side, and the impeller of the small flow water pump is mostly of this type;

[0003] At present, the existing water pump impeller, impeller disc and blades are connected together by casting. However, during use, if one blade is damaged, the entire impeller must be replaced, which increases maintenance costs. In addition, when used in water for a long time, the surface of the water pump impeller is easily damaged. Therefore, in view of the above problems, a water pump impeller that is easy to replace single blades is proposed. Utility Model Content

[0004] The purpose of this patent is to provide a water pump impeller that is easy to replace blades to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, this patent provides the following technical solution: a water pump impeller that is easy to replace blades, comprising an impeller body and blades, the side wall of the impeller body is provided with a groove, and the blades are inserted and installed in the groove;

[0006] The side wall of the blade is provided with a through hole, a bolt is inserted into the through hole, the side wall of the impeller body is provided with a mounting groove, a threaded sleeve is inserted into the mounting groove, the bolt passes through the side wall of the blade and is rotatably mounted with the threaded sleeve, a rubber plug is inserted into the through hole, and the rubber plug can seal the through hole;

[0007] A limiting ring is installed on the outer side of the threaded sleeve, and there are two limiting rings in total. The two limiting rings are respectively located in the groove and the installation groove.

[0008] Preferably, the rubber plug comprises a rubber block, a convex ring and a slot, the rubber block is inserted and installed in the through hole, a convex ring is installed on the outer side of the rubber block, a clearance groove is provided on the inner wall of the through hole, the convex ring can be inserted into the clearance groove, and a slot is provided on the side wall of the rubber block.

[0009] Preferably, a first sealing gasket is sleeved on the outer side of the blade, the first sealing gasket is fitted with the inner wall of the groove, and a second sealing gasket is installed on the outer side of the first sealing gasket, the second sealing gasket is fitted with the side wall of the impeller body.

[0010] Preferably, an outer side of the impeller body is provided with an external thread, and a pressure ring is installed on the outer side of the impeller body by rotating the thread, and the pressure ring can be pressed onto the second sealing gasket.

[0011] Preferably, a connecting hole is opened in the middle of the impeller body, a fixing bolt is inserted into the connecting hole, and the impeller body is installed in the external water pump through the fixing bolt.

[0012] Preferably, a rubber sleeve is sleeved on the outer side of the fixing bolt, and the side wall of the rubber sleeve is in contact with the inner wall of the connecting hole.

[0013] Compared with the prior art, the beneficial effects of this patent are:

[0014] The blades in the device are installed on the impeller body by the cooperation of bolts and threaded sleeves. When one of the blades is damaged, the blade can be directly removed and replaced by rotating the bolts, so that the blades can be replaced individually, which helps to reduce the maintenance cost of the user.

[0015] In addition, the device also seals the through hole by arranging a rubber plug to prevent the bolt from rusting due to long-term contact with water, which affects the subsequent disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this patent.

[0017] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0018] Figure 3 This is a schematic diagram of the rubber plug structure of this patent.

[0019] In the figure: 1 impeller body, 2 blades, 3 grooves, 4 through holes, 5 bolts, 6 mounting grooves, 7 threaded sleeves, 8 rubber plugs, 81 rubber blocks, 82 convex rings, 83 slots, 9 limiting rings, 10 clearance grooves, 11 first sealing gaskets, 12 second sealing gaskets, 13 pressure rings, 14 connecting holes, 15 fixing bolts, and 16 rubber sleeves. DETAILED DESCRIPTION

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

[0021] See also Figure 1-3This patent provides a technical solution: a water pump impeller that is easy to replace blades, including an impeller body 1 and blades 2, a groove 3 is opened on the side wall of the impeller body 1, and the blades 2 are inserted and installed in the groove 3;

[0022] One end of the blade 2 inserted into the groove 3 is provided with a boss, and the cooperation between the boss and the groove 3 can prevent the blade 2 from falling off;

[0023] In this article, the impeller body 1 and the blade 2 are connected by the cooperation between the bolt 5 and the threaded sleeve 7, which belongs to a split structure. When the blade 2 is damaged, the damaged blade 2 can be replaced separately, saving maintenance costs;

[0024] A through hole 4 is provided on the side wall of the blade 2, a bolt 5 is inserted into the through hole 4, a mounting groove 6 is provided on the side wall of the impeller body 1, a threaded sleeve 7 is inserted into the mounting groove 6, the bolt 5 penetrates the side wall of the blade 2 and is screwed together with the threaded sleeve 7, a rubber plug 8 is inserted into the through hole 4, and the rubber plug 8 can block the through hole 4;

[0025] The rubber plug 8 can seal the through hole 4 to prevent the bolt 5 from contacting water for a long time, thereby preventing the bolt 5 from rusting and affecting the rotation, and preventing the later disassembly of the blade 2 from being affected;

[0026] A limit ring 9 is installed on the outer side of the threaded sleeve 7. There are two limit rings 9, which are respectively located in the groove 3 and the installation groove 6.

[0027] The threaded sleeve 7 can be positioned by the limiting ring 9. When the bolt 5 is screwed into the threaded sleeve 7 and the limiting ring 9 located in the mounting groove 6 on the outside of the threaded sleeve 7 fits with the mounting groove 6, the position of the blade 2 is fixed.

[0028] Specifically, the rubber plug 8 includes a rubber block 81, a convex ring 82 and a clamping groove 83. The rubber block 81 is inserted into the through hole 4. The convex ring 82 is installed on the outer side of the rubber block 81. The inner wall of the through hole 4 is provided with a clearance groove 10. The convex ring 82 can be inserted into the clearance groove 10. The side wall of the rubber block 81 is provided with a clamping groove 83.

[0029] The cooperation between the convex ring 82 and the clearance groove 10 can prevent the rubber block 81 from being thrown out of the through hole 4 due to centrifugal force. By setting the card slot 83, when the blade 2 needs to be removed, the hook can be inserted into the card slot 83 through an external hook, so that the rubber plug 8 can be taken out from the through hole 4.

[0030] Specifically, a first sealing gasket 11 is sleeved on the outer side of the blade 2, and the first sealing gasket 11 is in contact with the inner wall of the groove 3. A second sealing gasket 12 is installed on the outer side of the first sealing gasket 11, and the second sealing gasket 12 is in contact with the side wall of the impeller body 1.

[0031] The provision of the first sealing gasket 12 and the second sealing gasket 12 can seal and shield the groove 3, thereby preventing the end of the bolt 5 connected to the threaded sleeve 7 from contacting water.

[0032] Specifically, an outer side of the impeller body 1 is provided with an external thread, and a pressure ring 13 is installed on the outer side of the impeller body 1 through thread rotation, and the pressure ring 13 can be pressed on the second sealing gasket 12;

[0033] The pressure ring 13 can press the second sealing gasket 12 to make the connection between the second sealing gasket 12 and the impeller body 1 tighter.

[0034] Specifically, a connecting hole 14 is opened in the middle of the impeller body 1 , a fixing bolt 15 is inserted into the connecting hole 14 , and the impeller body 1 is installed in the external water pump through the fixing bolt 15 .

[0035] Specifically, a rubber sleeve 16 is sleeved on the outer side of the fixing bolt 15, and the side wall of the rubber sleeve 16 fits with the inner wall of the connecting hole 14;

[0036] The rubber sleeve 16 prevents the fixing bolt 15 from being rusted due to long-term contact with water.

[0037] Working principle: When one of the blades 2 on the impeller body 1 is damaged, the staff first takes out the rubber sleeve 16, and then removes the filing bolt 15 to remove the impeller body 1 from the external water pump, and then inserts the hook into the slot 83 on the rubber plug 8, takes the rubber plug 8 out of the through hole 4, and then rotates the bolt 5 to release the fixation of the blade 2, and then loosens the pressure ring 13 to slide the blade 2 out of the groove 3 and replace it, which is very convenient and can effectively save maintenance costs.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water pump impeller with easy blade replacement, comprising an impeller body (1) and blades (2), characterized in that: The side wall of the impeller body (1) is provided with a groove (3), and the blades (2) are inserted and installed in the groove (3); The side wall of the blade (2) is provided with a through hole (4), a bolt (5) is inserted into the through hole (4), the side wall of the impeller body (1) is provided with a mounting groove (6), a threaded sleeve (7) is inserted into the mounting groove (6), the bolt (5) passes through the side wall of the blade (2) and is screwed together with the threaded sleeve (7), a rubber plug (8) is inserted into the through hole (4), and the rubber plug (8) can seal the through hole (4); A limiting ring (9) is installed on the outer side of the threaded sleeve (7), and there are two limiting rings (9) in total. The two limiting rings (9) are respectively located in the groove (3) and the installation groove (6).

2. A water pump impeller with easy blade replacement according to claim 1, characterized in that: The rubber stopper (8) comprises a rubber block (81), a convex ring (82) and a clamping groove (83); the rubber block (81) is inserted and installed in the through hole (4); the convex ring (82) is installed on the outer side of the rubber block (81); the inner wall of the through hole (4) is provided with a clearance groove (10); the convex ring (82) can be inserted into the clearance groove (10); and the side wall of the rubber block (81) is provided with a clamping groove (83).

3. A water pump impeller with easy blade replacement according to claim 1, characterized in that: A first sealing gasket (11) is sleeved on the outer side of the blade (2), the first sealing gasket (11) is in contact with the inner wall of the groove (3), a second sealing gasket (12) is installed on the outer side of the first sealing gasket (11), and the second sealing gasket (12) is in contact with the side wall of the impeller body (1).

4. A water pump impeller with easy blade replacement according to claim 3, characterized in that: The outer side of the impeller body (1) is provided with an external thread, and a pressure ring (13) is installed on the outer side of the impeller body (1) by rotating the thread, and the pressure ring (13) can be pressed onto the second sealing gasket (12).

5. The water pump impeller with easy blade replacement according to claim 1, characterized in that: A connecting hole (14) is provided in the middle of the impeller body (1), a fixing bolt (15) is inserted into the connecting hole (14), and the impeller body (1) is installed in the external water pump via the fixing bolt (15).

6. A water pump impeller with easy blade replacement according to claim 5, characterized in that: A rubber sleeve (16) is sleeved on the outer side of the fixing bolt (15), and the side wall of the rubber sleeve (16) is in contact with the inner wall of the connecting hole (14).

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