Injection pump

Abstract

The utility model provides an injection pump and belongs to the technical field of water pumps. The problem that an existing injection pump is poor in sealing effect is solved. The injection pump comprises a pump body and an injection nozzle installed in the pump body, a sealing structure is arranged between the pump body and the injection nozzle, the sealing structure is formed by integrally connecting two symmetrically-formed sealing main bodies, a plurality of clamping grooves distributed at intervals are formed in the outer ends of the sealing main bodies, and the inner ring and the outer ring between the two sealing main bodies are provided with compression grooves. The pump body is provided with a plurality of first clamping protrusions corresponding to the clamping grooves, the jet nozzle is provided with a plurality of second clamping protrusions corresponding to the clamping grooves, a plurality of sealing protruding parts are formed at the outer ends of the two sealing bodies through the clamping grooves, and the sealing protruding parts abut against the positions between the first clamping protrusions and the second clamping protrusions adjacent to the first clamping protrusions in a sealed mode. The sealing structure has the advantage that the sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps and relates to a jet pump. Background Art

[0002] The sealing performance between the injection nozzle and the pump body of the jet pump currently on the market is poor, and the sealing ring lacks a positioning structure and is easily misaligned, affecting the sealing effect. Summary of the Invention

[0003] The purpose of the utility model is to provide a jet pump with good sealing effect in order to solve the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: A jet pump, comprising a pump body and a jet nozzle installed in the pump body, characterized in that a sealing structure is provided between the pump body and the jet nozzle, and the sealing structure is formed by two symmetrically formed sealing bodies connected as one body, the outer ends of the sealing bodies are provided with a plurality of spaced-apart grooves, the inner and outer rings between the two sealing bodies are provided with pressure grooves, the pump body is provided with a plurality of corresponding grooves, the jet nozzle is provided with a plurality of corresponding grooves, the outer ends of the two sealing bodies are provided with a plurality of sealing protrusions, and the sealing protrusions are sealed against between two adjacent grooves.

[0005] In the above-mentioned jet pump, the sealing structure is made of rubber material.

[0006] In the above-mentioned jet pump, the jet nozzle is mounted on the pump body by bolts.

[0007] Compared with the prior art, the jet pump has the advantage of improved sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a partial cross-sectional view of this jet pump.

[0009] Figure 2 yes Figure 1 Enlarged view of point A.

[0010] In the figure, 1, pump body; 2, injection nozzle; 3, sealing body; 4, pressure groove; 5, first clamping protrusion; 6, second clamping protrusion; 7, sealing protrusion. DETAILED DESCRIPTION

[0011] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0012] like Figure 1 、 Figure 2The cam 220 of the present invention is provided with a plurality of sealing members 3 connected to each other in an integral manner.

[0013] Preferably, the sealing structure is made of rubber material.

[0014] Preferably, the injection nozzle 2 is mounted on the pump body 1 by bolts.

[0015] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0016] Although this document frequently uses terms such as pump body 1, injection nozzle 2, sealing body 3, pressure-receiving groove 4, first clamping protrusion 5, second clamping protrusion 6, and sealing protrusion 7, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A jet pump comprising a pump body (1) and a jet nozzle (2) mounted in the pump body (1), characterized in that: A sealing structure is provided between the pump body (1) and the injection nozzle (2), and the sealing structure is formed by connecting two symmetrically formed sealing bodies (3) in one piece, the outer ends of the sealing bodies (3) are provided with a plurality of slots distributed at intervals, the inner and outer rings between the two sealing bodies (3) are provided with pressure grooves (4), the pump body (1) is provided with a plurality of first cams (5) corresponding to the slots, and the injection nozzle (2) is provided with a plurality of second cams (6) corresponding to the slots, and a plurality of sealing protrusions (7) are formed on the outer ends of the two sealing bodies (3) through the slots, and the sealing protrusions (7) are sealed against between two adjacent first cams (5) and second cams (6).

2. A jet pump according to claim 1, characterized in that: The sealing structure is made of rubber material.

3. A jet pump according to claim 1, characterized in that: The injection nozzle (2) is mounted on the pump body (1) via bolts.

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