Non-negative pressure water supply pump

Abstract

The non-negative pressure water supply pump comprises a water pump body, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are arranged on the side wall of the water pump body in a communicated mode, noise reduction assemblies are arranged on the water inlet pipe and the water outlet pipe, each noise reduction assembly comprises two hinged clamping rings, and sound insulation plates are detachably installed on the inner side walls of the clamping rings. Positioning blocks are fixedly connected to the ends, away from the hinged position, of the clamping rings, and open grooves are formed in the positioning blocks. According to the noise reduction device, the noise reduction assembly is arranged on the water inlet pipe and the water outlet pipe, the purpose of reducing noise of liquid is achieved, and the noise reduction assembly comprises the two hinged clamping rings, so that installation is facilitated, the two clamping rings are arranged on a pipeline in a sleeving mode during installation, then the ends of the clamping rings are connected, specifically, the stud is rotated, and the noise reduction device is installed conveniently. The double-screw bolts are arranged in the two open grooves, then the threaded sleeves are rotated, the circular-ring-shaped end portions of the threaded sleeves are clamped in the clamping grooves, and therefore the purposes of locking and installing the clamping ring are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a non-negative pressure water supply pump. Background Art

[0002] The non-negative pressure water supply pump is a high-efficiency pump used in water supply systems. It has stable water supply pressure and water flow, and is widely used in urban water supply, industrial water, fire water and other fields. The working principle of the non-negative pressure water supply pump is to increase the water supply pressure by setting up a pump station in the water supply network so that the water in the tap water network flows through the pump station.

[0003] Existing non-negative pressure water pumps generate noise when conveying liquids, which is particularly noticeable at the water inlet and outlet pipes. Using high-performance sound-absorbing materials on the pipes can effectively absorb and attenuate the noise; however, they are usually difficult to install quickly, which is inconvenient.

[0004] For example, the utility model patent with patent publication number CN211116453U discloses a water pump for a silting device in a water conservancy project. In the patent, a silencer is provided on the connecting pipe to reduce the noise of the liquid. However, the silencer is installed with separate upper and lower clamping plates, which is inconvenient to install and thus needs to be solved. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a non-negative pressure water supply pump, which solves the problems raised in the above background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a non-negative pressure water supply pump, comprising a water pump body, a water inlet pipe and a drain pipe connected and arranged on the side wall of the water pump body, the water inlet pipe and the drain pipe are both provided with noise reduction components, the noise reduction components include two hinged clamping rings, the inner side wall of the clamping ring is detachably installed with a sound insulation board, the end of the clamping ring away from the hinge is fixedly connected to two positioning blocks, the positioning blocks are each provided with a slot, the slotted inner wall of one of the positioning blocks is rotatably connected to a stud, the end thread sleeve of the stud is provided with a threaded sleeve, and a card slot is provided on the side wall of the other positioning block, and the threaded sleeve is carded inside the card slot.

[0009] Preferably, the groove is annular, one end of the threaded sleeve located inside the groove is annular, and the other end of the threaded sleeve is polygonal.

[0010] Preferably, a first Velcro is fixedly connected to the arc-shaped side wall of the sound insulation board, an arc-shaped mounting groove is provided on the inner wall of the clamping ring, a second Velcro is fixedly connected to the inner wall of the arc-shaped mounting groove, and the sound insulation board is arranged inside the arc-shaped mounting groove.

[0011] Preferably, the sound insulation board is made of foam material or polyurethane foam material.

[0012] Preferably, the number of the first and second Velcro strips is two, and they are distributed near both end portions of the sound insulation board.

[0013] Preferably, the positioning block is arranged at a middle position of the end portion of the clamping ring.

[0014] (3) Beneficial effects

[0015] The utility model provides a non-negative pressure water supply pump, which has the following beneficial effects:

[0016] 1. In the utility model, a noise reduction assembly is provided on the water inlet pipe and the drain pipe to achieve the purpose of reducing the noise of the liquid, and the noise reduction assembly includes two hinged clamping rings, which is convenient for installation. During installation, the two clamping rings are placed on the pipes, and then the ends of the clamping rings are connected. Specifically, the studs are rotated so that the studs are located inside the two slots, and then the threaded sleeves are rotated to clamp the annular ends of the threaded sleeves into the inside of the slots, thereby achieving the purpose of locking and installation of the clamping rings.

[0017] 2. In the present invention, the sound insulation board can reduce the noise generated inside the pipeline, and has excellent sound insulation and sound absorption effects; and the sound insulation board can be disassembled and assembled from the arc-shaped installation groove, and when damaged, it can be replaced in time, thereby ensuring a good noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front perspective structural diagram of a non-negative pressure water supply pump proposed by the utility model;

[0019] Figure 2 This is a combined structural diagram of a clamping ring for a non-negative pressure water supply pump proposed by the present invention;

[0020] Figure 3 This is a structural diagram of a sound insulation board for a non-negative pressure water supply pump proposed in the utility model;

[0021] Figure 4 for Figure 2 A magnified structure diagram of the .

[0022] In the figure: 1. Water pump body; 2. Clamping ring; 201. Arc-shaped mounting groove; 3. Positioning block; 301. Slot; 302. Slot; 4. Stud; 5. Threaded sleeve; 6. Sound insulation board; 7. First Velcro; 8. Second Velcro; 9. Water inlet pipe; 10. Drain pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all the embodiments.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a non-negative pressure water supply pump, comprising a water pump body 1, a water inlet pipe 9 and a drain pipe 10 connected and arranged on the side wall of the water pump body 1, and a noise reduction component is provided on the water inlet pipe 9 and the drain pipe 10. The noise reduction component includes two hinged clamping rings 2, and a sound insulation board 6 is detachably installed on the inner wall of the clamping ring 2. The clamping ring 2 is fixedly connected to one end away from the hinge with two positioning blocks 3, and each positioning block 3 is provided with a slot 301. A stud 4 is rotatably connected to the inner wall of the slot 301 of one of the positioning blocks 3, and a threaded sleeve 5 is provided on the end thread of the stud 4. A slot 302 is provided on the side wall of the other positioning block 3, and the threaded sleeve 5 is clamped inside the slot 302.

[0025] A noise reduction assembly is provided on the water inlet pipe 9 and the drain pipe 10 to achieve the purpose of reducing the noise of the liquid, and the noise reduction assembly includes two hinged clamping rings 2, which facilitates installation. During installation, the two clamping rings 2 are sleeved on the pipes, and then the ends of the clamping rings 2 are connected. Specifically, the stud 4 is rotated so that the stud 4 is located inside the two slots 301, and then the threaded sleeve 5 is rotated to clamp the annular end of the threaded sleeve 5 into the inside of the clamping groove 302, thereby achieving the purpose of locking and installing the clamping ring 2.

[0026] The slot 302 is annular, one end of the threaded sleeve 5 located inside the slot 302 is annular, and the other end of the threaded sleeve 5 is polygonal; the annular end of the threaded sleeve 5 is adapted to fit the slot 302, and the end of the threaded sleeve 5 can be rotated into the slot 302.

[0027] A first Velcro 7 is fixedly connected to the arcuate side wall of the sound insulation board 6, an arcuate mounting groove 201 is opened on the inner wall of the clamping ring 2, a second Velcro 8 is fixedly connected to the inner wall of the arcuate mounting groove 201, and the sound insulation board 6 is arranged inside the arcuate mounting groove 201.

[0028] In addition, the sound insulation board 6 can be disassembled and assembled from the arc-shaped mounting groove 201. When damaged, it can be replaced in time to ensure a good noise reduction effect. The first Velcro 7 of the sound insulation board 6 is bonded to the second Velcro 8 on the inner wall of the arc-shaped mounting groove 201 to achieve the installation purpose.

[0029] The sound insulation board 6 is made of foam material or polyurethane foam material.

[0030] The sound insulation board 6 can reduce the noise generated inside the pipeline and has excellent sound insulation and sound absorption effects;

[0031] There are two first Velcro strips 7 and two second Velcro strips 8 , which are distributed near the two end portions of the sound insulation board 6 , in order to improve the overall stability of the sound insulation board 6 and ensure the maximum sound insulation effect.

[0032] In addition, the positioning block 3 is arranged at the middle position of the end of the clamping ring 2 to improve the connection effect of the two clamping rings 2.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. 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 preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements 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 non-negative pressure water supply pump, characterized in that: The invention comprises a water pump body (1), a water inlet pipe (9) and a drain pipe (10) which are connected and arranged on the side wall of the water pump body (1), wherein the water inlet pipe (9) and the drain pipe (10) are both provided with a noise reduction assembly, wherein the noise reduction assembly comprises two hinged clamping rings (2), wherein a sound insulation plate (6) is detachably mounted on the inner side wall of the clamping ring (2), and two positioning blocks (3) are fixedly connected to one end of the clamping ring (2) away from the hinge, wherein the positioning blocks (3) are both provided with a slot (301), wherein a stud (4) is rotatably connected to the inner wall of the slot (301) of one of the positioning blocks (3), wherein a threaded sleeve (5) is provided on the end of the stud (4), and a clamping slot (302) is provided on the side wall of the other positioning block (3), wherein the threaded sleeve (5) is clamped inside the clamping slot (302).

2. The non-negative pressure water supply pump according to claim 1, characterized in that: The clamping groove (302) is annular, one end of the threaded sleeve (5) located inside the clamping groove (302) is annular, and the other end of the threaded sleeve (5) is polygonal.

3. The non-negative pressure water supply pump according to claim 1, characterized in that: A first Velcro (7) is fixedly connected to the arc-shaped side wall of the sound insulation board (6), an arc-shaped installation groove (201) is provided on the inner side wall of the clamping ring (2), a second Velcro (8) is fixedly connected to the inner wall of the arc-shaped installation groove (201), and the sound insulation board (6) is arranged inside the arc-shaped installation groove (201).

4. The non-negative pressure water supply pump according to claim 3, characterized in that: The sound insulation board (6) is made of either a foam material or a polyurethane foam material.

5. The non-negative pressure water supply pump according to claim 3, characterized in that: The number of the first Velcro (7) and the second Velcro (8) is two, and they are distributed near the two end portions of the sound insulation board (6).

6. The non-negative pressure water supply pump according to claim 1, characterized in that: The positioning block (3) is arranged at the middle position of the end of the clamping ring (2).

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