A self-priming pump water inlet head anti-blocking structure

Abstract

The present invention discloses a self-priming pump water inlet head anti-blocking structure, comprising a water inlet head; a support frame arranged at the bottom of the water inlet head; and an anti-blocking structure arranged on the support frame. The anti-blocking structure comprises a connecting box, a movably connected push rod is passed through the connecting box, and is used to push open blockages. An electromagnet is fixed in the connecting box, a baffle is fixed to one end of the push rod near the electromagnet, an iron rod is fixed to one side of the baffle, a first spring is provided on the outer sleeve of the iron rod, and one end of the first spring is fixedly connected to the baffle. The present invention is convenient and quick to use, and can realize that after the electromagnet stops working, the baffle moves outward under the elastic force of the first spring, thereby driving the push rod to move outward, pushing open blockages on the support frame, and preventing the water inlet head from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of self-priming pump anti-blocking, and in particular to a self-priming pump water inlet head anti-blocking structure. Background Art

[0002] Self-priming centrifugal pumps are characterized by compact structure, easy operation, smooth operation, simple maintenance, high efficiency, long life, and strong self-priming ability. No foot valve is required in the piping; prior to operation, only a fixed amount of liquid must be stored in the pump body. Different materials can be used for different liquids. The operating principle of a self-priming pump is to fill the pump casing with water before starting. After starting, the impeller rotates at high speed, causing water in the impeller groove to flow into the volute. This creates a vacuum at the inlet, causing the water inlet check valve to open, allowing air in the suction pipe to enter the pump and reach the outer edge through the impeller groove.

[0003] The existing water inlet head of the self-priming pump is easily blocked when the self-priming pump is working, thereby affecting the normal operation of the self-priming pump. Summary of the Invention

[0004] The main purpose of the present invention is to provide a self-priming pump water inlet head anti-blocking structure, which can effectively solve the problem that the water inlet head is easily blocked when the self-priming pump is working, thereby affecting the normal operation of the self-priming pump.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A self-priming pump water inlet head anti-blocking structure, comprising:

[0007] Water inlet head;

[0008] A support frame is arranged at the bottom of the water inlet head;

[0009] an anti-blocking structure, arranged on the support frame;

[0010] Wherein, the anti-blocking structure includes a connecting box, and a movably connected push rod is passed through the connecting box to push open the blockage.

[0011] Preferably, an electromagnet is fixed in the connection box, a baffle is fixed to one end of the push rod close to the electromagnet, an iron rod is fixed to one side of the baffle, a first spring is provided on the outer sleeve of the iron rod, and one end of the first spring is fixedly connected to the baffle.

[0012] Preferably, the connection box is movably arranged on the rotating box, the rotating box is fixed on the supporting frame, and a rotating mechanism is provided in the rotating box for driving the connection box to rotate.

[0013] Preferably, a rolling bearing is fixed in the rotating box, a rotating rod is fixed to the inner wall of the rolling bearing, the rotating rod is movably arranged on the rotating box, and one end of the rotating rod is fixedly connected to the bottom of the connecting box.

[0014] Preferably, a connecting rod is fixed to the outer wall of the rotating rod, and a movably connected electric push rod is provided on the connecting rod. A movably connected connecting block is provided at one end of the electric push rod, and the connecting block is fixed to the inner wall of the rotating box.

[0015] Preferably, a first arc-shaped rack is fixed to the outer wall of the rotating rod through a first arc-shaped plate, a motor is installed on the inner wall of the rotating box, and the output shaft of the motor is fixed to a second arc-shaped rack through a second arc-shaped plate, and the first arc-shaped rack and the second arc-shaped rack are meshed.

[0016] Preferably, a second spring is fixed to one side of the first arc-shaped plate, a first connecting plate is fixed in the rotating box, and one end of the second spring is fixedly connected to the first connecting plate.

[0017] Preferably, a second connecting plate is also fixed in the rotating box, the top of the second connecting plate is fixedly connected to the top of the inner wall of the rotating box, the bottom of the second connecting plate is fixedly connected to the bottom of the inner wall of the rotating box, and the second connecting plate is arranged between the first connecting plate and the first curved plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The anti-blocking structure of the water inlet of a self-priming pump is provided with a push rod, an electromagnet, a baffle, an iron rod and a first spring. After the electromagnet stops working, the baffle moves outward under the elastic force of the first spring, thereby driving the push rod to move outward, pushing away the obstruction on the support frame, and preventing the water inlet from being blocked.

[0020] By arranging a rolling bearing, a rotating rod, a connecting rod, an electric push rod and a connecting block, the electric push rod is extended or contracted to drive the rotating rod to rotate back and forth, and then the push rod is driven to rotate back and forth through the connecting box, so that the blockage can be pushed open and the blockage can be removed at the same time;

[0021] By arranging a rolling bearing, a rotating rod, a first arc-shaped plate, a first arc-shaped rack, a motor, a second arc-shaped plate, a second arc-shaped rack, a second spring, a first connecting plate and a second connecting plate, the second arc-shaped rack is driven to rotate by the rotation of the motor, and then the second arc-shaped rack is driven to rotate intermittently, so as to continuously drive the rotating rod to rotate back and forth, and then continuously drive the top rod to rotate back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a self-priming pump inlet head anti-blocking structure provided by the present invention.

[0023] Figure 2 This is a schematic diagram of the interior of the connection box.

[0024] Figure 3 Schematic diagram of the water inlet head and rotating box.

[0025] Figure 4 Schematic diagram of the interior of the rotating box.

[0026] Figure 5 for Figure 4 Schematic diagram of the cross section at AA in the middle.

[0027] Figure 6 Schematic diagram of the rotating box and motor.

[0028] Figure 7 for Figure 6 Schematic diagram of the cross section at BB in the middle.

[0029] In the figure: 1. water inlet head; 2. support frame; 3. anti-blocking structure; 4. rotating box; 301. connecting box; 302. push rod; 303. electromagnet; 304. baffle; 305. iron rod; 306. first spring; 401. rolling bearing; 402. rotating rod; 403. connecting rod; 404. electric push rod; 405. connecting block; 406. first curved plate; 407. first curved rack; 408. motor; 409. second curved plate; 410. second curved rack; 411. second spring; 412. first connecting plate; 413. second connecting plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] Example 1

[0032] like Figure 1-2 As shown, a self-priming pump water inlet head anti-blocking structure includes a water inlet head 1;

[0033] Support frame 2, arranged at the bottom of water inlet head 1;

[0034] The anti-blocking structure 3 is arranged on the support frame 2;

[0035] The anti-blocking structure 3 includes a connecting box 301 , on which a movable push rod 302 is provided for pushing open blockages.

[0036] An electromagnet 303 is fixed in the connection box 301 , a baffle 304 is fixed to one end of the push rod 302 close to the electromagnet 303 , an iron rod 305 is fixed to one side of the baffle 304 , a first spring 306 is provided on the outer sleeve of the iron rod 305 , and one end of the first spring 306 is fixedly connected to the baffle 304 .

[0037] Among them, when the electromagnet 303 is energized, the electromagnet 303 absorbs and fixes the iron rod 305, and then fixes the push rod 302 through the baffle 304. After the electromagnet 303 is powered off, the electromagnet 303 no longer absorbs and fixes the iron rod 305, and the baffle 304 moves outward under the elastic force of the spring, thereby driving the push rod 302 to move outward. The push rod 302 pushes away the blockage on the support frame 2, so as to prevent the blockage from blocking the support frame 2 and then blocking the water inlet head 1.

[0038] Example 2

[0039] like Figure 3-5 As shown, a self-priming pump inlet head anti-blocking structure, the structure in Example 2 is basically the same as the structure in Example 1, the difference is that the connecting box 301 is movably set on the rotating box 4, the rotating box 4 is fixed on the support frame 2, and a rotating mechanism is provided in the rotating box 4 for driving the connecting box 301 to rotate.

[0040] A rolling bearing 401 is fixed in the rotating box 4 , a rotating rod 402 is fixed to the inner wall of the rolling bearing 401 , the rotating rod 402 is movably arranged on the rotating box 4 , and one end of the rotating rod 402 is fixedly connected to the bottom of the connecting box 301 .

[0041] A connecting rod 403 is fixed to the outer wall of the rotating rod 402, and a movable electric push rod 404 is provided on the connecting rod 403. A movable connecting block 405 is provided at one end of the electric push rod 404, and the connecting block 405 is fixed to the inner wall of the rotating box 4. One end of the electric push rod 404 is movably connected to the connecting rod 403 via a first rotating shaft, and the other end of the electric push rod is movably connected to the connecting block 405 via a second rotating shaft.

[0042] Among them, when the electric push rod 404 extends, the electric push rod 404 drives the connecting rod 403 to move to the side away from the connecting block 405, the connecting rod 403 drives the rotating rod 402 to rotate, the rotating rod 402 drives the connecting box 301 to rotate, and the connecting box 301 drives the top rod 302 to rotate; when the electric push rod 404 contracts, the electric push rod 404 drives the connecting rod 403 to move to the side close to the connecting block 405, the connecting rod 403 drives the rotating rod 402 to rotate, the rotating rod 402 drives the connecting box 301 to rotate, and the connecting box 301 drives the top rod 302 to rotate; the extension or contraction of the electric push rod 404 drives the top rod 302 to move back and forth, which makes it convenient to push away the blockage while pushing away the blockage.

[0043] Example 3

[0044] like Figure 3 、 Figure 6 、 Figure 7 As shown, a self-priming pump inlet head anti-blocking structure, the structure in Example 3 is basically the same as the structure in Example 2, except that a first arc-shaped rack 407 is fixed to the outer wall of the rotating rod 402 through a first arc-shaped plate 406, a motor 408 is installed on the inner wall of the rotating box 4, and the output shaft of the motor 408 is fixed to a second arc-shaped rack 410 through a second arc-shaped plate 409, and the first arc-shaped rack 407 and the second arc-shaped rack 410 are meshed.

[0045] A second spring 411 is fixed to one side of the first arc-shaped plate 406 , a first connecting plate 412 is fixed in the rotating box 4 , and one end of the second spring 411 is fixedly connected to the first connecting plate 412 .

[0046] A second connecting plate 413 is also fixed inside the rotating box 4. The top of the second connecting plate 413 is fixedly connected to the top of the inner wall of the rotating box 4, and the bottom of the second connecting plate 413 is fixedly connected to the bottom of the inner wall of the rotating box 4. The second connecting plate 413 is disposed between the first connecting plate 412 and the first curved plate 406. The second connecting plate 413 is used to block the first curved plate 406.

[0047] Among them, the motor 408 is operated, the output shaft of the motor 408 drives the second arc plate 409 to rotate, the second arc plate 409 drives the second arc rack 410 to rotate, the second arc rack 410 drives the first arc rack 407 to rotate, the first arc rack 407 drives the rotating rod 402 to rotate through the first arc plate 406, the rotating rod 402 drives the connecting box 301 to rotate, and the connecting box 301 drives the top rod 302 to rotate. After the second arc rack 410 and the first arc rack 407 are no longer in contact, the second arc rack 410 continues to rotate with the rotation of the motor 408, and the first arc rack 407 continues to rotate. An arc-shaped plate 406 moves toward the side of the first connecting plate 412 under the elastic force of the second spring 411, and the first arc-shaped plate 406 drives the first arc-shaped rack 407 to move toward the side of the first connecting plate 412. After the first arc-shaped plate 406 and the second connecting plate 413 contact, the first arc-shaped plate 406 and the first arc-shaped rack 407 stop moving, and then after the second arc-shaped rack 410 rotates to contact the first arc-shaped rack 407, the second arc-shaped rack 410 continues to drive the first arc-shaped rack 407 to rotate, and through the working cycle of the motor 408, the top rod 302 is continuously driven to move back and forth.

[0048] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-priming pump inlet head anti-blocking structure, applied to a self-priming pump, characterized in that: include: Inlet head (1); A support frame (2) is arranged at the bottom of the water inlet head (1); An anti-blocking structure (3) is arranged on the support frame (2); The anti-blocking structure (3) comprises a connecting box (301), and a movable push rod (302) is provided on the connecting box (301) for pushing open the blockage. An electromagnet (303) is fixed in the connection box (301), a baffle (304) is fixed to one end of the push rod (302) close to the electromagnet (303), an iron rod (305) is fixed to one side of the baffle (304), a first spring (306) is provided on the outer sleeve of the iron rod (305), and one end of the first spring (306) is fixedly connected to the baffle (304); The connection box (301) is movably arranged on a rotating box (4), the rotating box (4) is fixed on the support frame (2), and a rotating mechanism is provided in the rotating box (4) for driving the connection box (301) to rotate; A rolling bearing (401) is fixed in the rotating box (4), a rotating rod (402) is fixed to the inner wall of the rolling bearing (401), the rotating rod (402) is movably arranged on the rotating box (4), and one end of the rotating rod (402) is fixedly connected to the bottom of the connecting box (301); A first arc-shaped rack (407) is fixed to the outer wall of the rotating rod (402) via a first arc-shaped plate (406); a motor (408) is installed on the inner wall of the rotating box (4); an output shaft of the motor (408) is fixed to a second arc-shaped rack (410) via a second arc-shaped plate (409); the first arc-shaped rack (407) and the second arc-shaped rack (410) are meshed with each other; A second spring (411) is fixed to one side of the first arc-shaped plate (406), a first connecting plate (412) is fixed in the rotating box (4), and one end of the second spring (411) is fixedly connected to the first connecting plate (412); A second connecting plate (413) is also fixed in the rotating box (4), the top of the second connecting plate (413) is fixedly connected to the top of the inner wall of the rotating box (4), the bottom of the second connecting plate (413) is fixedly connected to the bottom of the inner wall of the rotating box (4), and the second connecting plate (413) is arranged between the first connecting plate (412) and the first curved plate (406).

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