CN220562933U - Inlet grid of water jet propulsion pump - Google Patents

Abstract

The utility model discloses a water jet propulsion pump inflow grid which comprises a bottom frame, wherein a first grid is arranged on the lower wall of the bottom frame, a limiting device is connected with the upper wall of the bottom frame, a guiding device is further arranged on the upper wall of the bottom frame, a second grid is arranged on the guiding device, and a connecting plate is arranged on the second grid. The utility model belongs to the field of inflow grids, and particularly relates to a water jet propulsion pump inflow grid; through setting up the filter screen of two-layer toper distribution design, screen different debris, set up stop gear and baffle box simultaneously, prevented the loss of water conservancy in screening process.

Description

Inlet grid of water jet propulsion pump

Technical Field

The utility model belongs to the technical field of inflow grids, and particularly relates to a water jet propulsion pump inflow grid.

Background

The water inlet flow channel is one of the important components of the water jet propulsion pump, and is mainly used for transmitting incoming flow of the ship bottom and energy of the incoming flow to the water jet propulsion pump arranged on the tail plate, but when the water jet propulsion ship sails in a complex water area, sundries such as wood, stones and the like can be sucked into the water jet propulsion pump to influence the normal work of the propulsion device, so that the water inlet flow channel is often required to be provided with an inlet grid for removing the sundries.

However, the following problems often occur in the process of removing impurities in the existing inflow grid:

(1) The existing inflow grid is usually a primary grid, and can not timely conduct grading screening on sundries with different sizes.

(2) In the process of removing sundries by the existing inflow grid, sundries are often accumulated at the mesh openings and cannot be discharged in time, so that the working efficiency of the thrust pump is affected.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the water jet propulsion pump inflow grid, wherein the first grid is arranged to remove large-size sundries, the second grid is arranged to remove small-size sundries, and the limiting device is combined, so that when the sundries in the second grid are accumulated, the distance between the first grid and the second grid is changed, the sundries flow out from the guide groove at one side, and the structure is efficient and simple.

The technical scheme adopted by the utility model is as follows: the utility model provides a water jet propulsion pump inflow grid which comprises a bottom frame, wherein a first grid is arranged on the lower wall of the bottom frame, a limiting device is connected with the upper wall of the bottom frame, a guiding device is further arranged on the upper wall of the bottom frame, a second grid is arranged on the guiding device, and a connecting plate is arranged on the second grid.

Further, the first grid comprises a first support frame arranged on the base, and a first filter screen is arranged on the first support frame in a covering mode; the second grid is including installing in the second support frame on the base, the second support frame covers and is equipped with the second filter screen, through setting up double-deck filter screen, can further screen debris, prevents that debris from causing the damage to the impeller.

Further, the limiting device comprises a spring arranged on the underframe, and the other end of the spring is connected with the second supporting frame.

Further, the first support frame and the underframe are in conical design; the second support frame and the connecting plate are in a conical design, and sundries can be accelerated to flow out through the conical design.

Further, the guiding device comprises a guiding seat arranged on the underframe, a guiding column is slidably arranged on the guiding seat, and the other end of the guiding column is connected with the second supporting frame.

Further, the springs are uniformly distributed on the upper wall of the second support frame, and the second support frame is provided with a guide groove.

Further, the first filter screen surface mesh size is greater than the second filter screen mesh size.

Further, the first support frame is connected with the underframe through a first bolt in an assembling manner, and the second support frame is connected with the connecting plate through a second bolt in an assembling manner.

The beneficial effects obtained by the utility model by adopting the structure are as follows:

(1) According to the water jet propulsion pump inflow grid, grading screening of sundries is achieved through the first filter screen and the second filter screen, and therefore damage to the impeller caused by the sundries is avoided.

(2) According to the water jet propulsion pump inflow grid, the limiting mechanism is arranged between the first filter screen and the second filter screen, so that flow loss can be reduced when screening is guaranteed, when the second filter screen is stressed to be large, the distance between the first filter screen and the second filter screen is increased, sundries can flow out from the guide chute, and the reduction of fluid kinetic energy loss is guaranteed.

(3) Through setting up the toper support frame, can guarantee that debris can not pile up on the filter screen, can get rid of from one side, also reduced hydraulic kinetic energy loss simultaneously.

Drawings

FIG. 1 is a general structure diagram of an inflow grid of a water jet propulsion pump provided by the utility model;

FIG. 2 is a front view of a water jet propulsion pump inlet grille according to the present utility model;

FIG. 3 is a top view of a water jet propulsion pump inlet grid provided by the utility model;

fig. 4 is a bottom view of a water jet propulsion pump inlet grid provided by the utility model.

Wherein, 1, an underframe, 2, a first grid, 201, a first supporting frame, 202, a first filter screen, 3, a limiting device, 4, a guiding device, 401, a guiding seat, 402 and a guiding post, 5, a second grid, 501, a second supporting frame, 502, a second filter screen, 6, a connecting plate, 7, springs, 8, a guide chute, 9, a first bolt, 10, a second bolt, 11 and a mesh.

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Specific examples:

as shown in fig. 1, the water jet propulsion pump inflow grid provided by the utility model comprises a bottom frame 1, wherein a first grid 2 is arranged on the lower wall of the bottom frame 1, a limiting device 3 is connected and arranged on the upper wall of the bottom frame 1, a guiding device 4 is further arranged on the upper wall of the bottom frame 1, a second grid 5 is arranged on the guiding device 4, and a connecting plate 6 is arranged on the second grid 5.

As shown in fig. 1 and fig. 3, the first grid 2 of the water jet propulsion pump inflow grid provided by the utility model comprises a first support frame 201 installed on the underframe 1, and a first filter screen 202 is covered on the first support frame 201.

As shown in fig. 1 and fig. 4, the second grid 5 of the water jet propulsion pump inlet grid provided by the utility model comprises a second support frame 501 installed on the underframe 1, and a second filter screen 502 is covered on the second support frame 501.

As shown in fig. 1, 2 and 4, the water jet propulsion pump inflow grid provided by the utility model, the limiting device 3 comprises a spring 7 arranged on the underframe 1, and the other end of the spring 7 is connected with the second supporting frame 501.

As shown in fig. 1 and 3, in the water jet propulsion pump inlet grid provided by the utility model, the first supporting frame 201 and the underframe 1 are in conical design.

As shown in fig. 1 and fig. 4, in the water jet propulsion pump inflow grid provided by the utility model, the second supporting frame 501 and the connecting plate 6 are in a conical design.

As shown in fig. 1 and fig. 2, the guide device 4 of the present utility model includes a guide seat 401 mounted on the chassis 1, a guide post 402 is slidably disposed on the guide seat 401, and the other end of the guide post 402 is connected to a second supporting frame 501.

As shown in fig. 1, 2 and 4, the water jet propulsion pump inlet grid provided by the utility model is characterized in that the springs 7 are uniformly distributed on the upper wall of the second support frame 501, and the second support frame 501 is provided with a guide chute 8.

As shown in fig. 3 and 4, the size of the mesh 11 on the surface of the first filter screen 202 is larger than that of the mesh 11 of the second filter screen 502.

As shown in fig. 1 and 2, in the water jet propulsion pump inflow grid provided by the utility model, the first support frame 201 is assembled and connected with the chassis 1 through the first bolt 9, and the second support frame 501 is assembled and connected with the connecting plate 6 through the second bolt 10.

The specific use is as follows:

first debris contact the first filter screen 202 on the first support frame 201 of toper design through the water conservancy effect, under the filter action of first filter screen 202, select separately jumbo size debris, because first support frame 201 is the toper design, so first filter screen 202 also is the toper and distributes, and jumbo size debris flows along the first filter screen of toper distribution.

Then, because the size of the mesh 11 of the first filter screen 202 is larger, the small-size sundries flow through the first filter screen 202 to contact the second filter screen 502, and under the screening action of the second filter screen 502, the small-size sundries are screened, at this time, the distance between the first filter screen 202 and the second filter screen 502 is closer, because the water power is further increased, sundries can be accumulated at the second filter screen 502, the spring 7 in the limiting device 3 is pulled away, the second filter screen 502 moves along the guide seat 401 through the guide pillar 402, the distance between the two is increased, and then the sundries further play the conical second filter screen 502 and the guide chute 8 to flow out, and meanwhile, the water power loss is prevented.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (10)

1. The utility model provides a water jet propulsion pump inflow grid, includes chassis, its characterized in that: the first grid is arranged on the lower wall of the underframe, the limiting device is connected with the upper wall of the underframe, the guiding device is further arranged on the upper wall of the underframe, the second grid is arranged on the guiding device, and the connecting plate is arranged on the second grid.

2. A water jet propulsion pump inlet grill as claimed in claim 1 wherein: the first grid comprises a first supporting frame arranged on the underframe, and a first filter screen is arranged on the first supporting frame in a covering mode.

3. A water jet propulsion pump inlet grill as claimed in claim 2 wherein: the second grid comprises a second supporting frame arranged on the underframe, and a second filter screen is arranged on the second supporting frame in a covering mode.

4. A water jet propulsion pump inlet grill as claimed in claim 3 wherein: the limiting device comprises a spring arranged on the underframe, and the other end of the spring is connected with the second supporting frame.

5. A water jet propulsion pump inlet grill as claimed in claim 4 wherein: the first support frame and the underframe are in conical design.

6. A water jet propulsion pump inlet grill as claimed in claim 5 wherein: the second support frame and the connecting plate are in conical design.

7. A water jet propulsion pump inlet grill as claimed in claim 6 wherein: the guide device comprises a guide seat arranged on the underframe, a guide pillar is arranged on the guide seat in a sliding mode, and the other end of the guide pillar is connected with the second supporting frame.

8. A water jet propulsion pump inlet grill as claimed in claim 7 wherein: the springs are uniformly distributed on the upper wall of the second supporting frame, and the second supporting frame is provided with a guide chute.

9. A water jet propulsion pump inlet grill as claimed in claim 8 wherein: the mesh size of the surface of the first filter screen is larger than that of the second filter screen.

10. A water jet propulsion pump inlet grill as claimed in claim 9 wherein: the first support frame is connected with the underframe through a first bolt in an assembling way, and the second support frame is connected with the connecting plate through a second bolt in an assembling way.