Jet pump with convertible nozzle

Abstract

The utility model discloses an injection pump with a convertible nozzle, which comprises an injection pump body and a nozzle conversion component, one end of the injection pump body is provided with an injection pipe, and the head of the injection pipe is provided with a threaded connector; the spray head conversion assembly comprises a clamp and a plurality of spray heads of different specifications, and the outer end face of the injection pipe is sunken to form an annular groove meeting the requirement for installation of the clamp. The detachable spray head conversion assembly is designed on the injection pipe, when the spray head needs to be replaced, an original spray head is loosened in a spiral mode, then the spray head meeting the use requirement in the spray head conversion assembly is reinstalled on the corresponding threaded connector, and due to the fact that the spray head conversion assembly is directly installed on the injection pipe, replacement is convenient. The spray head is arranged on the jet pump, so that the phenomenon that the spray head is lost is avoided, the subsequent conversion operation is not influenced, the spray head part is always on the jet pump and can be directly replaced during replacement, the mounting and dismounting time can be shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of jet pumps, in particular to a jet pump with a switchable nozzle. Background Art

[0002] The jet pump is a fluid power pump. The fluid power pump has no mechanical transmission and mechanical working components. It uses the energy of another working fluid as a power source to transport low-energy liquid.

[0003] The jet pumps commonly used at present are all equipped with nozzles. In different application environments, it is often necessary to switch nozzles (heads) of different sizes. At present, when replacing, the original nozzle needs to be removed and then replaced with the desired nozzle. When replacing, the time from taking out the desired nozzle and installing the new nozzle is long, which will affect the subsequent work efficiency; in addition, some nozzles are small, and after being removed, they are easy to be lost, which will affect the subsequent conversion operation. Utility Model Content

[0004] The purpose of the utility model is to provide a jet pump with a switchable nozzle in order to solve the above-mentioned problem.

[0005] The technical solution adopted by the utility model is as follows: a jet pump with a switchable nozzle, comprising a jet pump body and a nozzle conversion assembly, wherein a jet pipe is provided at one end of the jet pump body, and a threaded connector is provided at the head of the jet pipe; the nozzle conversion assembly comprises a clamp and a plurality of nozzles of different specifications, the outer end surface of the jet pipe is recessed to form an annular groove for installing the clamp; the inner circumferential surface of the tail end of the nozzle is provided with an internal thread for installing on the threaded connector.

[0006] In a preferred embodiment, the outer end surface of the tail end of the nozzle is recessed to form a guide ring groove, and a guide ring is rotated on the guide ring groove.

[0007] In a preferred embodiment, the guide ring and the clamp are connected into a whole via a connecting piece.

[0008] In a preferred embodiment, an opening is provided at one end of the clamp, and positioning convex plates are protruded from the clamp on both sides of the opening, a light hole and a threaded hole are respectively provided on the two positioning convex plates, and a fastening bolt is threadedly installed between the two positioning convex plates.

[0009] In a preferred embodiment, an O-ring is embedded in the spray pipe at the tail end of the threaded connector, and after the spray head is installed on the threaded connector, the tail end face of the spray head is interference fit with the O-ring.

[0010] In a preferred embodiment, the outer end surface of the nozzle has anti-slip patterns distributed circumferentially.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] 1. In the utility model, a detachable nozzle conversion assembly is designed on the spray pipe. When the nozzle needs to be replaced, the original nozzle screw is loosened, and then the nozzle that meets the use is reinstalled on the corresponding threaded connector. Since the nozzle conversion assembly is directly installed on the spray pipe, the nozzle will not be lost, thereby not affecting the subsequent conversion operation;

[0013] 2. In the utility model, the nozzle part is always on the jet pump, and can be directly replaced when replaced, which can reduce the installation and disassembly time, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall explosion three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional plan structure of the nozzle in the utility model;

[0016] Figure 3 It is a structural cross-sectional view of the spraying part of the jet pump body in the utility model;

[0017] Figure 4 for Figure 1 A schematic diagram of the enlarged structure at point a in the middle.

[0018] Markings in the figure: 1-jet pump body, 101-jet pipe, 102-annular groove, 103-threaded connector, 104-O-ring, 2-connector, 3-spray nozzle, 301-internal thread, 302-guide ring, 303-guide ring groove, 4-clamp, 5-fastening bolt. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Reference Figure 1-4A jet pump with a switchable nozzle comprises a jet pump body 1 and a nozzle conversion assembly, wherein a jet pipe 101 is provided at one end of the jet pump body 1, and a threaded connector 103 is provided at the head of the jet pipe 101; the nozzle conversion assembly comprises a clamp 4 and a plurality of nozzles 3 of different specifications, the outer end surface of the jet pipe 101 is recessed to form an annular groove 102 for installing the clamp 4, and the inner circumferential surface of the tail end of the nozzle 3 is provided with an internal thread 301 for installing on the threaded connector 103, and a detachable nozzle conversion assembly is designed on the jet pipe 101. When the nozzle 3 needs to be replaced, the original nozzle 3 is screwed out, and then the nozzle 3 that meets the use in the nozzle conversion assembly is reinstalled on the corresponding threaded connector 103. Since the nozzle conversion assembly is directly installed on the jet pipe 101, the nozzle 3 will not be lost, thereby not affecting the subsequent conversion operation.

[0021] The injection pipe 101 and the nozzle 3 are connected by a threaded connection, which has better sealing performance and is more convenient to install and remove than the traditional clamp connection.

[0022] In addition, the nozzle part is always on the injection pump body 1, and can be directly replaced when replaced, which can reduce the installation and removal time, thereby improving work efficiency.

[0023] In this embodiment, the outer end surface of the tail end of the nozzle 3 is recessed to form a guide ring groove 303, and a guide ring 302 is rotated on the guide ring groove 303. After the above design, the nozzle 3 can rotate accordingly on the guide ring 302, thereby meeting the subsequent spiral loosening and spiral tightening operations of the nozzle 3.

[0024] Furthermore, the guide ring 302 and the clamp 4 are connected as a whole through the connector 2, the nozzle 3 is combined into a whole through the connector 2 and the clamp 4, and is installed on the injection pipe 101 through the clamp 4, so that the nozzle 3 is not easily lost.

[0025] The connecting member 2 is made of plastic material.

[0026] In this embodiment, an opening is provided at one end of the clamp 4, and positioning convex plates 401 are protruded on both sides of the opening of the clamp 4. The two positioning convex plates 401 are respectively provided with a light hole and a threaded hole, and a fastening bolt 5 is threadedly installed between the two positioning convex plates 401. When the nozzle conversion assembly needs to be replaced, the fastening bolt 5 is loosened, the clamp 4 is opened, and the clamp 4 can be taken out from the injection pipe 101, so that the nozzle conversion assembly can be replaced as a whole.

[0027] In this embodiment, an O-ring 104 is embedded in the tail end of the threaded connector 103 on the spray pipe 101. After the nozzle 3 is installed on the threaded connector 103, the tail end face of the nozzle 3 and the O-ring 104 are interference fit. The O-ring 104 can further improve the sealing performance of the nozzle 3 and the O-ring 104 after installation.

[0028] In this embodiment, the outer end surface of the nozzle 3 is circumferentially distributed with anti-skid patterns, which can increase the friction between the hands of the staff and the nozzle 3, so that the hands are not likely to slip during installation and removal.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A jet pump with a switchable nozzle, comprising a jet pump body and a nozzle switching assembly, characterized in that: An injection pipe is provided at one end of the injection pump body, and a threaded connector is provided at the head of the injection pipe; The nozzle conversion assembly includes a clamp and a plurality of nozzles of different specifications, and the outer end surface of the spray pipe is concave to form an annular groove for installing the clamp; The inner circumferential surface of the tail end of the nozzle is provided with an internal thread that satisfies the requirement of being installed on the threaded connector.

2. A jet pump with a switchable nozzle as claimed in claim 1, characterized in that: The outer end surface of the tail end of the nozzle is concave to form a guide ring groove, and a guide ring is rotated on the guide ring groove.

3. A jet pump with a switchable nozzle as claimed in claim 2, characterized in that: The guide ring and the clamp are connected into a whole through a connecting piece.

4. A jet pump with a switchable nozzle as claimed in claim 1, characterized in that: One end of the clamp is provided with an opening, and positioning convex plates are protruded from the clamp on both sides of the opening. Light holes and threaded holes are respectively provided on the two positioning convex plates, and a fastening bolt is threadedly installed between the two positioning convex plates.

5. A jet pump with a switchable nozzle as claimed in claim 1, characterized in that: An O-ring is embedded in the tail end of the threaded connector on the spray pipe. After the nozzle is installed on the threaded connector, the tail end surface of the nozzle is interference-fitted with the O-ring.

6. A jet pump with a switchable nozzle as claimed in claim 1, characterized in that: The outer end surface of the nozzle is circumferentially provided with anti-slip patterns.

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