Structure for rapidly solving pump blocking problem of self-priming pump

Abstract

The utility model provides a structure for rapidly solving the problem of blocking of a self-priming pump, and belongs to the technical field of self-priming pumps. Comprising a self-sucking pump and a twisting mechanism, the self-sucking pump comprises a pump shell, a bearing is installed in the pump shell, a pump shaft is installed on an inner ring of the bearing, a baffle is installed at one end of the pump shell, a through hole is formed in the center of the baffle, a rotating disc is rotatably connected into the through hole, a connecting disc is slidably arranged in the through hole, and a spring is connected between the connecting disc and the rotating disc; a connecting rod is installed on one side of the connecting disc, the connecting rod slides in the rotating disc and is clamped with one end of the pump shaft, a clamping block is installed at the other end of the connecting disc, and the twisting mechanism is clamped with the clamping block. The risk that the pump is stuck and the machine is burnt is greatly reduced, the problem of pump sticking can be solved in time, the maintenance cost of the self-priming pump is reduced, and the service life of the self-priming pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of self-priming pumps, in particular to a structure for quickly solving the problem of self-priming pump jams. Background Art

[0002] A self-priming pump, such as a shaft-connected self-priming pump, primarily consists of a motor, impeller, pump body, pump shaft, and sealing rings. The working principle of a self-priming pump is as follows: Before the pump is started, the pump casing is filled with water (or water itself is already present in the pump casing). After starting, the impeller rotates at high speed, causing the water in the impeller grooves to flow into the volute. This creates a vacuum at the inlet, opening the water inlet check valve and allowing air in the suction pipe to enter the pump and flow through the impeller grooves to the outer edge. Meanwhile, the water discharged by the impeller into the air-water separation chamber flows back to the outer edge of the impeller through the left and right return holes. The water returning from the left return hole, driven by the pressure difference and gravity, is ejected into the impeller grooves, where it is broken up by the impeller. After mixing with air from the suction line, it is flung toward the volute, flowing in the direction of rotation. Because the motor shaft and impeller drive shaft of a self-priming pump are directly connected and come into contact with water, if left unused for extended periods (2-7 days), oxidation reactions between the shaft, water, and air can occur, leading to rust and pump seizure.

[0003] However, the above self-priming pump has the following disadvantages during use: since the suction pump motor and the impeller drive shaft are directly connected and in contact with water, if it is not used for a long time (2-7 days), the shaft, water and air will undergo an oxidation reaction, resulting in rust and pump jam. After the pump is jammed, the machine cannot work normally. Moreover, since the existing suction pump impeller and fan blades are all sealed, if the pump is jammed, professional maintenance personnel need to disassemble the self-priming pump impeller cover or fan blade cover to solve the problem, resulting in high maintenance costs and long delays. Utility Model Content

[0004] In order to solve the problem that it is difficult for maintenance personnel to repair the existing shaft-connected self-priming pump that is stuck due to rust, resulting in high maintenance costs and long delays, the utility model provides a structure for quickly solving the problem of self-priming pump sticking.

[0005] The utility model is achieved in this way:

[0006] A structure for quickly solving the problem of a stuck self-priming pump includes a self-priming pump and a torsional mechanism, the self-priming pump includes a pump casing, a bearing is installed in the pump casing, a pump shaft is installed on the inner ring of the bearing, an impeller is installed on the part of the pump shaft located in the pump casing, a baffle is installed at one end of the pump casing, a through hole is provided at the center of the baffle, a turntable is rotatably connected inside the through hole, a connecting disk is slidably provided in the through hole, a spring is connected between the connecting disk and the turntable, a connecting rod is installed on one side of the connecting disk, the connecting rod slides in the turntable and engages with one end of the pump shaft, a blocking block is installed on the other end of the connecting disk, and the torsional mechanism is engaged with the blocking block.

[0007] The beneficial effect of adopting the above-mentioned further scheme is that the torsion mechanism is used to engage with the clamping block and squeeze the connecting disk, so that one end of the connecting rod is engaged with the pump shaft. When the torsion mechanism is rotated, the pump shaft can be driven to rotate. When the torsion mechanism can be easily rotated, the problem of the pump shaft being stuck can be solved.

[0008] Furthermore, one end of the pump shaft is provided with a slot, a plurality of latch teeth are provided at equal distances on the side of the slot, the free end of the connecting rod is provided with a tooth groove, the free end of the connecting rod slides in the slot, and the tooth groove and the latch teeth engage.

[0009] Furthermore, the torsion mechanism includes a connecting sleeve and a torsion bar, the torsion bar and the connecting sleeve are connected to form a "T" shape, and one end of the connecting sleeve is provided with a card slot, and the card slot is engaged with the card block.

[0010] Furthermore, the card slot and the card block are both polygonal in shape.

[0011] Furthermore, a limiting ring is installed inside the through hole, and a limiting groove is provided on the outer side of the turntable, and the limiting ring slides in the limiting groove.

[0012] Furthermore, a sealing rubber is provided on the surface of the limiting ring.

[0013] The beneficial effect of adopting the above further solution is that the limit groove and the limit ring are used to limit the turntable in the through hole without affecting the rotation of the turntable.

[0014] Furthermore, a sliding hole is opened at the center of the turntable, and the connecting rod slides in the sliding hole.

[0015] Furthermore, a connection cover is connected to the center of the baffle through screws, and a sealing ring is installed on the side where the connection cover contacts the baffle, and the connection cover covers the connection disk.

[0016] The beneficial effect of adopting the above further solution is that when the self-priming pump is working, the connection cover is fixed to the baffle to cover the gap between the connection disk and the through hole, thereby preventing the pumped water from flowing out of the gap between the connection disk and the through hole.

[0017] The beneficial effects of the utility model are as follows: the technical solution can quickly solve the problem of mechanical pump jamming of the self-priming pump, and does not require professional maintenance engineers and professional skills, greatly reducing the risk of the pump being jammed and burning the machine, because the pump jam can be solved in time, the maintenance cost of the self-priming pump is reduced, and the service life of the self-priming pump is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of an explosion structure in one embodiment of the present utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of the A structure in the middle;

[0022] Figure 4 for Figure 2 A schematic diagram of the structure of structure B in the middle;

[0023] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of the C structure in the middle.

[0024] In the figure: 100, self-priming pump; 1001, pump casing; 1002, baffle; 1003, pump shaft; 1004, impeller; 1005, connecting plate; 1006, block; 1007, connecting rod; 1008, tooth groove; 1009, spring; 1010, turntable; 1011, limiting ring; 1012, sliding hole; 1013, through hole; 1014, slot; 1015, connecting cover; 200, torsion mechanism. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] The utility model is a method for quickly solving the problem of self-priming pump jam.

[0028] The utility model provides the following technical solutions: Figure 1 - Figure 5 The free end of the connecting rod 1007 is provided with a tooth groove 1008, and the free end of the connecting rod 1007 slides in the groove 1014, and the tooth groove 1008 and the tooth bite. The torsion mechanism 200 includes a connecting sleeve and a torsion bar. The torsion bar and the connecting sleeve are connected to form a "T" shape. One end of the connecting sleeve is provided with a groove, and the groove and the block 1006 are engaged. The groove and the block 1006 are both polygonal. The groove and the block 1006 are engaged and squeezed into the connecting disk 1005, so that the connecting rod 1007 slides in the sliding hole 1012 and slides into the groove 1014. At this time, the tooth groove 1008 and the tooth bite, hold the torsion bar and rotate it, so that the connecting sleeve drives the pump shaft 1003 to rotate. When the torsion mechanism 200 can be easily rotated, the problem of the pump shaft 1003 being stuck can be solved.

[0029] Embodiment 2 of the utility model of a structure for quickly solving the problem of self-priming pump jam

[0030] Reference Figure 1 - Figure 5 Specifically, it includes a self-priming pump 100 and a torsion mechanism 200. The self-priming pump 100 includes a pump housing 1001. A bearing is installed in the pump housing 1001. The inner ring of the bearing is installed with a pump shaft 1003. The part of the pump shaft 1003 located in the pump housing 1001 is installed with an impeller 1004. The outside of the pump housing 1001 is respectively connected to a water inlet pipe and a water outlet pipe, and is connected to a drain pipe with a valve body. The center of the baffle 1002 is connected to a connecting cover 1015 by screws, and a sealing cover is installed on the side where the connecting cover 1015 contacts the baffle 1002. The sealing ring and the connecting cover 1015 are covered on the connecting disk 1005, and the surface of the limiting ring 1011 is provided with sealing rubber. When the self-priming pump 100 is working, the connecting cover 1015 is fixed on the baffle 1002 to cover the gap between the connecting disk 1005 and the through hole 1013, so as to prevent the pumped water from flowing out from the gap between the connecting disk 1005 and the through hole 1013, and the sealing ring and the sealing rubber improve the sealing between the turntable 1010 and the through hole 1013, and between the connecting cover 1015 and the baffle 1002, so as to further prevent water from flowing out.

[0031] Embodiment 3 of the utility model for quickly solving the problem of self-priming pump jam

[0032] Reference Figure 1 - Figure 5Specifically, it includes a self-priming pump 100 and a torsion mechanism 200. The self-priming pump 100 includes a pump housing 1001. A bearing is installed in the pump housing 1001. The inner ring of the bearing is installed with a pump shaft 1003. The part of the pump shaft 1003 located in the pump housing 1001 is installed with an impeller 1004. The outer sides of the pump housing 1001 are respectively connected to a water inlet pipe and a water outlet pipe, and are connected to a drain pipe with a valve body. One end of the water inlet pipe and the water outlet pipe are connected to a flange. The pump is installed between the pipes using the flange and the coupling is used. The pump shaft 1003 is connected to the output end of the motor, and water is injected into the pump housing 1001 in advance. Under the action of water pressure and spring 1009, the connecting rod 1007 and the pump shaft 1003 are separated, and the motor is started to drive the impeller 1004 to rotate. The impeller 1004 rotates at high speed to make the water in the impeller groove flow to the volute in the pump housing 1001. At this time, a vacuum is formed at the inlet, so that the water inlet check valve opens, and the air in the suction pipe enters the pump housing 1001 and reaches the outer edge through the impeller groove, and finally the water is extracted.

[0033] Specifically, the working principle of the structure of the self-priming pump that can quickly solve the problem of the pump being stuck is as follows: when in use, the pump is installed between the pipes using a flange, and the pump shaft 1003 is connected to the output end of the motor using a coupling. Water is injected into the pump housing 1001 in advance. Under the action of water pressure and spring 1009, the connecting rod 1007 and the pump shaft 1003 are separated, and the motor is started to drive the impeller 1004 to rotate. The impeller 1004 rotates at a high speed to make the water in the impeller channel flow to the volute in the pump housing 1001. At this time, a vacuum is formed at the inlet, causing the water inlet check valve to open. The air in the suction pipe enters the pump casing 1001 and reaches the outer edge through the impeller groove, and finally the moisture is extracted. When the pump shaft 1003 is stuck, remove the connecting cover 1015, engage the slot and the block 1006, and squeeze the connecting disk 1005, so that the connecting rod 1007 slides in the sliding hole 1012 and slides into the slot 1014. At this time, the tooth groove 1008 and the card teeth are engaged. Hold the torsion bar and turn it, so that the connecting sleeve drives the pump shaft 1003 to rotate. When the torsion mechanism 200 can be easily rotated, the problem of the pump shaft 1003 being stuck can be solved.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A structure for quickly solving the problem of self-priming pump jam, characterized in that: The invention comprises a self-priming pump (100) and a torsion mechanism (200), wherein the self-priming pump (100) comprises a pump housing (1001), a bearing is installed in the pump housing (1001), a pump shaft (1003) is installed on the inner ring of the bearing, an impeller (1004) is installed on the part of the pump shaft (1003) located in the pump housing (1001), a baffle (1002) is installed at one end of the pump housing (1001), a through hole (1013) is provided at the center of the baffle (1002), and a through hole (1013) is provided inside the through hole (1013) for rotationally connecting the pump shaft (1003) and the impeller (1004) A rotating disk (1010) is provided with a connecting disk (1005) slidingly disposed in the through hole (1013), a spring (1009) is connected between the connecting disk (1005) and the rotating disk (1010), a connecting rod (1007) is installed on one side of the connecting disk (1005), the connecting rod (1007) slides in the rotating disk (1010) and engages with one end of the pump shaft (1003), a clamping block (1006) is installed on the other end of the connecting disk (1005), and the torsion mechanism (200) is engaged with the clamping block (1006).

2. A structure for quickly solving the problem of self-priming pump jam according to claim 1, characterized in that: One end of the pump shaft (1003) is provided with a slot (1014), and a plurality of latch teeth are equidistantly provided on the side of the slot (1014). The free end of the connecting rod (1007) is provided with a tooth groove (1008), and the free end of the connecting rod (1007) slides in the slot (1014), and the tooth groove (1008) engages with the latch teeth.

3. The structure for quickly solving the problem of self-priming pump jam according to claim 1 is characterized in that: The torsion mechanism (200) comprises a connecting sleeve and a torsion bar, wherein the torsion bar and the connecting sleeve are connected to form a "T" shape, and a clamping slot is provided at one end of the connecting sleeve, and the clamping slot is engaged with a clamping block (1006).

4. A structure for quickly solving the problem of self-priming pump jam according to claim 3, characterized in that: The card slot and the card block (1006) are both polygonal in configuration.

5. The structure for quickly solving the problem of self-priming pump jam according to claim 1 is characterized in that: A limiting ring (1011) is installed inside the through hole (1013), and a limiting groove is provided on the outside of the rotating disk (1010), and the limiting ring (1011) slides in the limiting groove.

6. The structure for quickly solving the problem of self-priming pump jam according to claim 5, characterized in that: The surface of the limiting ring (1011) is provided with sealing rubber.

7. The structure for quickly solving the problem of self-priming pump jam according to claim 1 is characterized in that: A sliding hole (1012) is provided at the center of the rotating disk (1010), and the connecting rod (1007) slides in the sliding hole (1012).

8. The structure for quickly solving the problem of self-priming pump jam according to claim 1 is characterized in that: The center of the baffle (1002) is connected to a connection cover (1015) by screws, and a sealing ring is installed on the side where the connection cover (1015) and the baffle (1002) contact each other, and the connection cover (1015) covers the connection disk (1005).

Images