Submersible pump

Abstract

The submersible pump comprises a submersible pump body and a water inlet base fixed to the bottom end of the submersible pump body, a conical cover is fixed to the outer wall of the water inlet base, and a plurality of equidistant double-layer inclined pull arms are detachably installed on the outer wall of the conical cover. A lower bearing seat is rotationally installed at one end in the double-layer inclined pulling arm, inverted-V-shaped supporting legs used for supporting the conical cover are installed at the two ends of the lower bearing seat, and a pull rod type buffering assembly used for preventing the inverted-V-shaped supporting legs from deflecting upwards is arranged in the double-layer inclined pulling arm. Part of descending impact force of the pump body is absorbed through the pull rod type buffering assembly, so that impact on the pump body and internal parts is reduced, the submersible pump is protected, meanwhile, the supporting area of the pump body in water can be increased through the inverted-V-shaped supporting feet, shaking and swinging of the pump body in the sinking process are reduced, and the stability of the submersible pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a submersible pump. Background Art

[0002] A submersible pump is a pump used to pump liquid (usually water) from a lower position to a higher position, such as pumping liquid from a well, river, lake or other water source to the ground or transporting it to where it is needed. The structure of a submersible pump usually includes a pump body, a motor, a sealing device, a bearing, an impeller, a water inlet, a water outlet and other parts. The pump body usually consists of a pump casing, an impeller, a guide casing and other parts. The pump casing is usually made of stainless steel, cast iron or plastic to withstand the pressure of the liquid and corrosion resistance. The motor is usually installed on the upper part of the pump body to drive the impeller to rotate and pump the liquid to the ground or transport it to where it is needed. At present, when submersible pumps are used in deeper waters, they need to be sunk into the water body. However, during the sinking process, the submersible pump may collide with the bottom of the water due to excessive speed. At this time, the pump body may be deformed, cracked or damaged, and internal parts such as impellers and bearings may also be damaged, resulting in a decrease in the performance of the pump or even failure to work properly. Utility Model Content

[0003] The purpose of the utility model is to provide a submersible pump, which adds a conical cover to the water inlet base of the pump body, and installs a plurality of equidistant double-layer inclined arms, a pull rod type buffer assembly and an inverted V-shaped support foot on the outer wall of the conical cover to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submersible pump, comprising a submersible pump body and a water inlet base fixed at the bottom end of the submersible pump body, a conical cover is fixed on the outer wall of the water inlet base, and a plurality of equidistant double-layer inclined arms are detachably mounted on the outer wall of the conical cover, a lower bearing seat is rotatably mounted on one end of the double-layer inclined arm, and inverted V-shaped supporting feet for supporting the conical cover are mounted on both ends of the lower bearing seat, and a pull rod-type buffer assembly is arranged inside the double-layer inclined arm for preventing the inverted V-shaped supporting feet from deflecting upward.

[0005] Preferably, the pull rod type buffer assembly includes an elastic shock absorbing member movably mounted inside a double-layer inclined pull arm, and a connecting rod fixed at one end of the lower bearing seat surface, wherein one end of the connecting rod away from the lower bearing seat is interconnected with one end of the elastic shock absorbing member.

[0006] Preferably, the elastic shock-absorbing member includes an upper support shaft fixed to one end inside the double-layer inclined arm, and a hydraulic damper rotatably mounted on the upper support shaft, wherein a fisheye joint is fixed to the top end of the piston rod of the hydraulic damper, and the bottom end of the fisheye joint and one end of the connecting rod are hinged to each other.

[0007] Preferably, the conical cover is made of stainless steel, and the outer peripheral surface of the conical cover is provided with a hollow groove.

[0008] Preferably, the inverted V-shaped supporting foot comprises bending arms fixed at both ends of the lower bearing seat, and a V-shaped foot support fixed between the two bending arms.

[0009] Preferably, a right-angled plate is fixed to one end of the double-layer inclined arm close to the vertical reference line of the conical cover, and an arc-shaped plug block is fixed to the top of the right-angled plate.

[0010] Preferably, an arc-shaped docking sleeve concentric with the arc-shaped plug block is installed on the inner wall of the conical cover, and two through holes are provided on the outer wall of one side of the arc-shaped plug block and the arc-shaped docking sleeve, and the arc-shaped plug block and the arc-shaped docking sleeve are bolted to each other through bolts and the through holes.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the submersible pump is provided with an inverted V-shaped supporting foot and a double-layer inclined arm and other structures that cooperate with each other. The inverted V-shaped supporting foot and the pull-rod type buffer assembly can play a role in buffering and dispersing impact force. When the submersible pump body descends too fast, these components can absorb part of the descending impact force to reduce the impact on the pump body and internal components, thereby protecting the submersible pump. At the same time, the inverted V-shaped supporting foot can increase the supporting area of ​​the pump body in the water, reduce the shaking and swaying of the pump body during the sinking process, improve the stability of the submersible pump, and ensure the stable pumping of the water by the submersible pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the cone cover of the utility model;

[0017] In the figure: 1. submersible pump body; 2. water inlet base; 3. conical cover; 301. hollow groove; 4. double-layer inclined arm; 5. elastic shock-absorbing member; 501. upper support shaft; 502. hydraulic damper; 503. fisheye joint; 6. lower bearing seat; 7. connecting rod; 8. inverted V-shaped support foot; 801. bent arm; 802. V-shaped foot support; 9. right-angle edge plate; 10. arc-shaped plug block; 11. arc-shaped docking sleeve; 1101. through hole. DETAILED DESCRIPTION

[0018] 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. 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.

[0019] See also Figure 1-5 The utility model provides an embodiment: a submersible pump, comprising a submersible pump body 1 and a water inlet base 2 fixed at the bottom end of the submersible pump body 1, a conical cover 3 is fixed on the outer wall of the water inlet base 2, and a plurality of equidistant double-layer inclined arms 4 are detachably mounted on the outer wall of the conical cover 3, a lower bearing seat 6 is rotatably mounted on one end of the double-layer inclined arm 4, and inverted V-shaped supporting feet 8 for supporting the conical cover 3 are mounted on both ends of the lower bearing seat 6. When the submersible pump body 1, the water inlet base 2 and the structure are sunk into the water body by the user and contact the bottom of the water, the inverted V-shaped supporting feet 8 will first contact the bottom of the water, and a pull rod type buffer assembly is arranged inside the double-layer inclined arm 4 for preventing the inverted V-shaped supporting feet 8 from deflecting upward, and the inverted V-shaped supporting feet 8 force the pull rod type buffer assembly to act, and the pull rod type buffer assembly is used to mitigate the impact of pump body settlement;

[0020] The pull rod type buffer assembly includes an elastic shock absorbing member 5 inside a movably mounted double-layer inclined pull arm 4, and a connecting rod 7 fixed at one end of the surface of the lower bearing seat 6, wherein one end of the connecting rod 7 away from the lower bearing seat 6 is connected to one end of the elastic shock absorbing member 5;

[0021] The elastic shock-absorbing member 5 includes an upper support shaft 501 fixed at one end inside the double-layer inclined arm 4, and a hydraulic damper 502 rotatably mounted on the upper support shaft 501. A fisheye joint 503 is fixed to the top of the piston rod of the hydraulic damper 502. The bottom end of the fisheye joint 503 and one end of the connecting rod 7 are hinged to each other. When the inverted V-shaped support foot 8 contacts the bottom of the water, the inverted V-shaped support foot 8 drives the lower bearing seat 6 to rotate. Since the lower bearing seat 6 is connected to the movable end of the elastic shock-absorbing member 5 through the connecting rod 7, the connecting rod 7 moves with the piston rod end of the hydraulic damper 502 through the fisheye joint 503. At this time, the hydraulic damper 502 is stretched. In this process, the upper support shaft 501 serves as the movable center of the upper cylinder of the hydraulic damper 502. The hydraulic damper 502 effectively absorbs and dissipates the vibration and impact force generated by the submersible pump during operation, reducing mechanical wear and damage caused by vibration and impact.

[0022] The conical cover 3 is made of stainless steel, which has high strength and hardness, can provide good structural support and protection, and is helpful to improve the service life and stability of the conical cover 3; and the design of the conical cover 3 can make the water flow diffuse when entering the water inlet base 2 and the submersible pump body 1, and the outer peripheral surface of the conical cover 3 is provided with a hollow groove 301, and the hollow groove 301 is for the water flow to pass through, thereby slowing down the water flow speed, and the hollow groove 301 effectively reduces the vortex generated when the water flow enters the pump body, so that the water flow enters the pump body more evenly;

[0023] The inverted V-shaped support leg 8 includes a bent arm 801 fixed at both ends of the lower bearing seat 6, and a V-shaped foot support 802 fixed between the two bent arms 801. The V-shaped foot support 802 increases the support area of ​​the submersible pump in the water, reduces the pressure of the single-point load, and enables the submersible pump to work stably in the water area;

[0024] A right-angled plate 9 is fixed to one end of the double-layer inclined arm 4 close to the vertical reference line of the conical cover 3, and an arc-shaped plug-in block 10 is fixed to the top of the right-angled plate 9. An arc-shaped docking sleeve 11 which is concentric with the arc-shaped plug-in block 10 is installed on the inner wall of the conical cover 3. Two through holes 1101 are arranged on the outer walls of one side of the arc-shaped plug-in block 10 and the arc-shaped docking sleeve 11. The arc-shaped plug-in block 10 and the arc-shaped docking sleeve 11 are bolted to each other through bolts and through holes 1101. When assembling the double-layer inclined arm 4 and the conical cover 3, the end of the double-layer inclined arm 4 is plugged into the arc-shaped docking sleeve 11 through the right-angled plate 9 and the arc-shaped plug-in block 10, and the arc-shaped docking sleeve 11 and the arc-shaped plug-in block 10 are bolted by bolts and through holes 1101, so as to complete the assembly of the shock-absorbing component and the conical cover 3. The installation time can be saved by quickly installing the shock-absorbing component, so as to facilitate the user's on-site arrangement and use.

[0025] When the embodiment of the present application is in use, the staff first takes out a plurality of double-layer inclined arms 4 to be assembled with the conical cover 3, so that each double-layer inclined arm 4 is bolted to the outer wall of the conical cover 3. The staff can install and assemble at least three equidistant double-layer inclined arms 4 on the outer wall of the conical cover 3 to support the conical cover 3 and the submersible pump body 1. When the submersible pump body 1, the water inlet base 2 and the structure are sunk into the water by the user and contact the bottom of the water, the inverted V-shaped support foot 8 will be the first to contact the bottom of the water. Since the inverted V-shaped support foot 8 will be supported by the conical cover 3, the submersible pump body 1 and the water inlet base 2, the inverted V-shaped support foot 8 will be supported by the conical cover 3, the submersible pump body 1 and the water inlet base 2. The inverted V-shaped supporting foot 8 and the pull-rod buffer assembly have the sinking inertia of other components, and the pull-rod buffer assembly is used to alleviate this part of the impact. The inverted V-shaped supporting foot 8 and the pull-rod buffer assembly can buffer and disperse the impact force. When the submersible pump body 1 descends too fast, these components can absorb part of the descending impact force to reduce the impact on the pump body and internal components, thereby protecting the submersible pump. At the same time, the inverted V-shaped supporting foot 8 can increase the supporting area of ​​the pump body in the water, reduce the shaking and swaying of the pump body during the sinking process, improve the stability of the submersible pump, and ensure the stable pumping of the water by the submersible pump body 1.

[0026] 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 regarded as exemplary and non-restrictive from any point of view, 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 regarded as limiting the claim to which it relates.

Claims

1. A submersible pump, characterized in that: The invention comprises a submersible pump body (1) and a water inlet base (2) fixed at the bottom end of the submersible pump body (1); a conical cover (3) is fixed on the outer wall of the water inlet base (2); and a plurality of equidistant double-layer inclined arms (4) are detachably mounted on the outer wall of the conical cover (3); a lower bearing seat (6) is rotatably mounted on one end of the double-layer inclined arm (4); inverted V-shaped support feet (8) for supporting the conical cover (3) are mounted at both ends of the lower bearing seat (6); and a pull rod type buffer assembly is arranged inside the double-layer inclined arm (4) for preventing the inverted V-shaped support feet (8) from deflecting upward.

2. A submersible pump according to claim 1, characterized in that: The pull rod type buffer assembly comprises an elastic shock absorbing member (5) inside a movably mounted double-layer inclined pull arm (4), and a connecting rod (7) fixed at one end of the surface of the lower bearing seat (6), wherein one end of the connecting rod (7) away from the lower bearing seat (6) is interconnected with one end of the elastic shock absorbing member (5).

3. A submersible pump according to claim 2, characterized in that: The elastic shock absorbing member (5) comprises an upper support shaft (501) fixed to one end inside the double-layer inclined arm (4), and a hydraulic damper (502) rotatably mounted on the upper support shaft (501), a fisheye joint (503) being fixed to the top end of the piston rod of the hydraulic damper (502), and the bottom end of the fisheye joint (503) and one end of the connecting rod (7) being hinged to each other.

4. A submersible pump according to claim 1, characterized in that: The conical cover (3) is made of stainless steel, and the outer peripheral surface of the conical cover (3) is provided with a hollow groove (301).

5. A submersible pump according to claim 1, characterized in that: The inverted V-shaped support leg (8) comprises a bending arm (801) fixed at both ends of the lower bearing seat (6), and a V-shaped foot support (802) fixed between the two bending arms (801).

6. A submersible pump according to claim 1, characterized in that: A right-angled plate (9) is fixed to one end of the double-layer inclined arm (4) close to the vertical reference line of the conical cover (3), and an arc-shaped plug block (10) is fixed to the top of the right-angled plate (9).

7. A submersible pump according to claim 6, characterized in that: An arc-shaped butt joint sleeve (11) which is concentric with the arc-shaped plug block (10) is mounted on the inner wall of the conical cover (3); two through holes (1101) are arranged on one side outer wall of the arc-shaped plug block (10) and the arc-shaped butt joint sleeve (11); the arc-shaped plug block (10) and the arc-shaped butt joint sleeve (11) are bolted to each other via bolts and the through holes (1101).

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