Connecting structure of spray pump and ship body

Abstract

The utility model discloses a connecting structure of a spray pump and a ship body, which is arranged between the ship body and the spray pump and is used for fixing the spray pump at the bottom of the ship body, the tail part of the ship body is provided with a spray pump mounting space, the spray pump is fixedly mounted on the inner wall of the spray pump mounting space through a connecting plate, and the end surface of the spray pump mounting space is provided with an opening part with a U-shaped structure. The connecting plate is of a plate-shaped structure with a through opening in the middle, the connecting plate is fixedly installed on the inner wall of the spray pump installation space through a plurality of first connecting studs, and the spray pump is fixed to the connecting plate through a second connecting stud. According to the structure, the spray pump is indirectly connected with the ship body, so that the stress balance of the position, where the spray pump is installed, of the ship body is higher, the spray pump is not prone to directly exerting thrust on part of the ship body in the using process, the ship body is protected, and due to the installation structure design, when the spray pump is replaced, the spray pump can be replaced conveniently, and the cost is reduced. The hull structure is not influenced, and the hull is prevented from being damaged during disassembly and replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of jet pump installation, in particular to a connection structure between a jet pump and a hull. Background Art

[0002] A jet pump is a fluid power pump, which is an indispensable part of a motorboat. It is installed at the bottom of a motorboat or a hull and is used to spray water to provide power to the motorboat through the force of the water flow.

[0003] In the existing jet pump installation structure, the jet pump itself is mostly fixed directly to the bottom of the hull by bolts and other connecting parts. When the jet pump is in operation, it often produces large vibrations. This connection structure directly installed on the hull is prone to loosening of the installation bolts, causing the jet pump to loosen and also damaging the hull structure. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem that in the prior art, in which the jet pump installation structure is mostly fixed directly to the bottom of the hull by bolts and other connecting parts, and the jet pump often generates large vibrations when it is in operation, the connection structure directly installed on the hull is prone to loosening of the installation bolts, resulting in loosening of the jet pump and damage to the hull structure. A connection structure between the jet pump and the hull is provided, in which the jet pump is indirectly connected to the hull, so that the force balance at the position where the jet pump is installed on the hull is higher, so that the jet pump is not easy to directly apply thrust to a part of the hull when in use, thereby protecting the hull, and such a mounting structure design ensures that when the jet pump is replaced, it will not affect the hull structure, thus avoiding damage to the hull during disassembly and replacement.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model discloses a connection structure between a jet pump and a hull, which is arranged between the hull and the jet pump and is used to fix the jet pump to the bottom of the hull. The tail of the hull is provided with a jet pump installation space, and the jet pump is fixedly installed on the inner wall of the jet pump installation space through a connecting plate.

[0007] The end face of the jet pump installation space has a U-shaped mouth, and the connecting plate adopts a plate structure with a through opening in the middle, and the mouth and the through opening are both used to pass the impeller shaft of the jet pump. The connecting plate is fixedly installed on the inner wall of the jet pump installation space by multiple first connecting studs, and the jet pump is fixed to the connecting plate by second connecting studs. Such a structural arrangement ensures that the jet pump and the hull are not directly connected by bolts, so the force balance at the position where the jet pump is installed on the hull is higher, making it difficult for the jet pump to directly apply thrust to a part of the hull when in use, thereby protecting the hull. In addition, such an installation structure design ensures that when the jet pump is damaged or needs to be replaced with another type of jet pump, it can be directly removed from the connecting plate without affecting the hull structure, thereby avoiding damage to the hull during disassembly and replacement.

[0008] Preferably, the jet pump includes a jet pump mounting base and an impeller sleeve installed at one end of the jet pump mounting base, and two fixed connecting ears are symmetrically welded to the outer wall of the jet pump mounting base, and the fixed connecting ears are fixedly connected to the connecting plate by a second connecting stud, thereby realizing an indirect connection between the jet pump and the hull, so that when the jet pump is damaged or needs to be replaced with another type of jet pump, it can be directly removed from the connecting plate without affecting the hull structure, thereby avoiding damage to the hull during disassembly and replacement.

[0009] Preferably, rib plates are provided on the outer wall of the spray pump mounting seat on both sides of the fixed connecting ear, and the rib plates form a triangular structure between the spray pump mounting seat and the fixed connecting ear, thereby improving the stability and strength of the fixed connecting ear and avoiding cracks between the spray pump mounting seat and the fixed connecting ear due to vibration during the operation of the spray pump.

[0010] Preferably, a positioning column cap is further provided on the outer wall of the spray pump mounting seat, and positioning through holes aligned with the positioning column cap are provided on the spray pump mounting space and the connecting plate. A positioning column is installed in the positioning column cap, and the positioning column passes through the positioning through holes on the spray pump mounting space and the connecting plate. Such a structural arrangement allows a high degree of consistency among the spray pump mounting seat, the connecting plate and the hull, that is, when the spray pump vibrates during operation, the spray pump mounting seat will not experience abnormal circumferential rotation, thereby improving the stability of the spray pump installation. In this way, during the installation of the spray pump, the positioning column can be inserted into the positioning through hole first to achieve positioning of the connecting plate and the spray pump, thereby facilitating the installation of the spray pump.

[0011] Preferably, a pair of clamping ears are welded to the outer wall of the impeller sleeve, and the clamping ears are clamped on the positioning column. Such a structural arrangement ensures that the impeller sleeve will not loosen due to the vibration of the jet pump after the jet pump is started.

[0012] Preferably, a protective device is further included, which is installed on the bottom of the hull and covers the bottom of the jet pump installation space. The protective device includes: a main guard plate and a secondary guard plate, wherein both sides of one end of the main guard plate are fixed to the assembly openings reserved on the bottom of the hull by bolts, one end of the secondary guard plate is pressed onto the main guard plate, and the other end is fixed to the fixing opening reserved on the hull by bolts through a bracket. Such a structural arrangement enables the protective device to cover the jet pump, so that when the jet pump is started, the turbulence at the bottom of the hull will not cause impact on the jet pump, thereby increasing its service life.

[0013] Preferably, the connecting plate has slopes on both sides, and the auxiliary guard plate has concave slope structures on both sides. The slope structures on both sides of the auxiliary guard plate are engaged with the slopes so that the inner side of the auxiliary guard plate covers the edge of the connecting plate. Such a structural setting makes the auxiliary guard plate and the connecting plate highly consistent, and enables the auxiliary guard plate to provide a comprehensive protective pressure to the connecting plate, thereby making the connecting plate more stable.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In this structure, the jet pump is indirectly connected to the hull, so the force balance at the position where the jet pump is installed on the hull is higher, so that the jet pump is not easy to directly apply thrust to a part of the hull when in use, which plays a protective role for the hull. In addition, such an installation structure design allows the jet pump to be directly removed from the connecting plate when it is damaged or needs to be replaced with another type of jet pump, which will not affect the hull structure and avoid damage to the hull during disassembly and replacement;

[0016] The setting of the positioning column in this structure makes the jet pump mounting seat, the connecting plate and the hull more consistent, that is, when the jet pump vibrates during operation, the jet pump mounting seat will not experience abnormal circumferential rotation, thereby improving the stability of the jet pump installation. In addition, during the installation of the jet pump, the positioning column can be inserted into the positioning through hole first to achieve the positioning of the connecting plate and the jet pump, thereby facilitating the installation of the jet pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model after the spray pump is installed;

[0018] Figure 2 This is a schematic diagram of the structure of the spray pump in the utility model installed in the spray pump installation space;

[0019] Figure 3 It is a structural schematic diagram of another perspective of the spray pump of the utility model installed in the spray pump installation space;

[0020] Figure 4 This is an exploded view of the installation structure of the spray pump in the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the spray pump and the connecting plate of the utility model;

[0022] Figure 6 For this utility model Figure 1 Enlarged view of area A in the middle.

[0023] Figure numerals: 1. hull; 101. jet installation space; 102. fixing port; 103. assembly port; 2. jet; 201. jet mounting seat; 2011. positioning column cap; 2012. rib plate; 2013. fixed connecting ear; 202. impeller sleeve; 2021. clamping ear; 3. protective device; 301. main guard plate; 302. secondary guard plate; 303. bracket; 4. connecting plate; 401. slope; 402. positioning column; 403. first connecting stud; 404. second connecting stud. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 -Attached Figure 6 , further illustrating the specific implementation of the connection structure between the jet pump and the hull of the utility model, which overcomes the problem that in the jet pump installation structure in the prior art, the jet pump itself is mostly directly fixed to the bottom of the hull by bolts and other connecting parts, and the jet pump often generates large vibrations when it is in operation. This connection structure directly installed on the hull is prone to loosening of the installation bolts, resulting in loosening of the jet pump, and also damages the hull structure. In this structure, the jet pump is indirectly connected to the hull, so the force balance at the position where the jet pump is installed on the hull is higher, making it difficult for the jet pump to directly apply thrust to a part of the hull when in use, thus protecting the hull, and such a mounting structure design ensures that when the jet pump is replaced, it will not affect the hull structure, avoiding damage to the hull during disassembly and replacement. The connection structure between the jet pump and the hull of the utility model is not limited to the description of the following embodiments.

[0025] Embodiment 1:

[0026] This embodiment provides a connection structure between a jet pump and a hull, such as Figure 1-6 As shown, it is arranged between the hull 1 and the jet pump 2, and is used to fix the jet pump 2 to the bottom of the hull 1. The tail of the hull 1 is provided with a jet pump installation space 101, and the jet pump 2 is fixedly installed on the inner wall of the jet pump installation space 101 through a connecting plate 4;

[0027] The end face of the jet pump installation space 101 has a U-shaped opening, and the connecting plate 4 adopts a plate-like structure with a through opening in the middle. The opening of the jet pump installation space 101 and the through opening of the connecting plate 4 are both used to pass the impeller shaft of the jet pump 2. The connecting plate 4 is fixedly installed on the inner wall of the jet pump installation space 101 by a plurality of first connecting studs 403, and the jet pump 2 is fixed to the connecting plate 4 by second connecting studs 404.

[0028] By adopting the above technical solution:

[0029] The jet pump 2 is not directly fixed to the hull 1 by bolts, so the force balance at the position where the jet pump 2 is installed on the hull 1 is higher, making it difficult for the jet pump 2 to directly apply thrust to a part of the hull 1 when in use, thereby protecting the hull 1. In addition, such an installation structure design makes it possible to directly remove the jet pump 2 from the connecting plate 4 when it is damaged or needs to be replaced with another type of jet pump 2, without affecting the hull structure, thereby avoiding damage to the hull 1 during disassembly and replacement.

[0030] Example 2

[0031] Based on Example 1, in this embodiment, the jet pump 2 includes a jet pump mounting base 201 and an impeller sleeve 202 installed at one end of the jet pump mounting base 201, and two fixed connecting ears 2013 are symmetrically welded on the outer wall of the jet pump mounting base 201, and the fixed connecting ears 2013 are fixedly connected to the connecting plate 4 through a second connecting stud 404.

[0032] Furthermore, rib plates 2012 are provided on the outer wall of the spray pump mounting seat 201 on both sides of the fixed connecting ear 2013, and the rib plates 2012 form a triangular structure between the spray pump mounting seat 201 and the fixed connecting ear 2013, thereby improving the stability and strength of the fixed connecting ear 2013 and avoiding cracks between the spray pump mounting seat 201 and the fixed connecting ear 2013 due to vibration caused by the operation of the spray pump.

[0033] Furthermore, a positioning column cap 2011 is provided on the outer wall of the spray pump mounting seat 201, and positioning holes aligned with the positioning column cap 2011 are opened on the spray pump mounting space 101 and the connecting plate 4, and a positioning column 402 is installed in the positioning column cap 2011, and the positioning column 402 passes through the positioning holes on the spray pump mounting space 101 and the connecting plate 4.

[0034] Furthermore, a pair of clamping ears 2021 are welded to the outer wall of the impeller sleeve 202 , and the clamping ears 2021 are clamped on the positioning column 402 . Such a structural arrangement ensures that the impeller sleeve 202 will not become loose due to the vibration of the jet pump 2 after the jet pump 2 is started.

[0035] By adopting the above technical solution:

[0036] The indirect connection between the jet pump 2 and the hull 1 allows the jet pump 2 to be directly removed from the connecting plate 4 when it is damaged or needs to be replaced with another type of jet pump 2, without affecting the hull structure, thereby avoiding damage to the hull 1 during removal and replacement. The provision of the positioning column 402 allows the jet pump mounting seat 201, the connecting plate 4 and the hull 1 to have a high degree of consistency, that is, when the jet pump 2 vibrates during operation, the jet pump mounting seat 201 will not experience abnormal circumferential rotation, thereby improving the stability of the installation of the jet pump 2. In this way, during the installation of the jet pump 2, the positioning column 402 can be inserted into the positioning through hole first to achieve positioning of the connecting plate 4 and the jet pump 2, thereby facilitating the installation of the jet pump 2.

[0037] Example 3

[0038] On the basis of Example 1, this embodiment also includes a protective device 3, which is installed on the bottom of the hull 1 and covers the bottom of the jet pump installation space 101. The protective device 3 includes: a main guard plate 301 and a secondary guard plate 302, wherein both sides of one end of the main guard plate 301 are fixed to the assembly port 103 reserved at the bottom of the hull 1 by bolts, one end of the secondary guard plate 302 is pressed on the main guard plate 301, and the other end is fixed to the fixing port 102 reserved on the hull 1 by bolts through the bracket 303.

[0039] Furthermore, there are slope surfaces 401 on both sides of the connecting plate 4, and the two sides of the auxiliary guard plate 302 adopt a concave slope structure. The slope structures on both sides of the auxiliary guard plate 302 are engaged on the slope surfaces 401, so that the inner side of the auxiliary guard plate 302 covers the edge of the connecting plate 4. Such a structural setting makes the auxiliary guard plate 302 highly consistent with the connecting plate 4, and enables the auxiliary guard plate 302 to provide a comprehensive protective pressure to the connecting plate 4, so that the stability of the connecting plate 4 is higher.

[0040] By adopting the above technical solution:

[0041] The protective device 3 can cover the jet pump 2, so that when the jet pump 2 is started, the turbulence at the bottom of the hull 1 will not cause impact to the jet pump 2, thereby increasing its service life.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A connection structure between a jet pump and a hull, which is arranged between a hull (1) and a jet pump (2) and is used to fix the jet pump (2) to the bottom of the hull (1), characterized in that: The stern of the hull (1) is provided with a jet pump installation space (101), and the jet pump (2) is fixedly installed on the inner wall of the jet pump installation space (101) via a connecting plate (4); The end surface of the spray pump installation space (101) has a U-shaped opening, the connecting plate (4) adopts a plate-like structure with a through opening in the middle, the connecting plate (4) is fixedly installed on the inner wall of the spray pump installation space (101) by a plurality of first connecting studs (403), and the spray pump (2) is fixed on the connecting plate (4) by second connecting studs (404).

2. The connection structure between a jet pump and a hull according to claim 1, characterized in that: The spray pump (2) comprises a spray pump mounting seat (201) and an impeller sleeve (202) mounted on one end of the spray pump mounting seat (201); two fixed connection ears (2013) are symmetrically welded to the outer wall of the spray pump mounting seat (201); the fixed connection ears (2013) are fixedly connected to the connecting plate (4) via a second connecting stud (404).

3. The connection structure between a jet pump and a hull according to claim 2, characterized in that: Rib plates (2012) are provided on the outer wall of the spray pump mounting seat (201) at both sides of the fixed connection ear (2013), and the rib plates (2012) form a triangular structure between the spray pump mounting seat (201) and the fixed connection ear (2013).

4. The connection structure between a jet pump and a hull according to claim 2, characterized in that: The outer wall of the spray pump mounting seat (201) is also provided with a positioning column cap (2011); the spray pump mounting space (101) and the connecting plate (4) are both provided with positioning through holes aligned with the positioning column cap (2011); a positioning column (402) is installed in the positioning column cap (2011); and the positioning column (402) passes through the positioning through holes on the spray pump mounting space (101) and the connecting plate (4).

5. The connection structure between a jet pump and a hull according to claim 4, characterized in that: A pair of clamping ears (2021) are welded to the outer wall of the impeller sleeve (202), and the clamping ears (2021) are clamped on the positioning column (402).

6. The connection structure between a jet pump and a hull according to claim 1, characterized in that: It also includes a protective device (3) installed at the bottom of the hull (1) and covering the bottom of the jet pump installation space (101), wherein the protective device (3) includes: a main guard plate (301) and a secondary guard plate (302), wherein both sides of one end of the main guard plate (301) are fixed to an assembly opening (103) reserved at the bottom of the hull (1) by bolts, and one end of the secondary guard plate (302) is pressed onto the main guard plate (301), and the other end is fixed to a fixing opening (102) reserved on the hull (1) by bolts through a bracket (303).

7. The connection structure between a jet pump and a hull according to claim 6, characterized in that: The connecting plate (4) has slope surfaces (401) on both sides, and the auxiliary guard plate (302) has concave slope structures on both sides. The slope structures on both sides of the auxiliary guard plate (302) are engaged with the slope surfaces (401), so that the inner side of the auxiliary guard plate (302) covers the edge of the connecting plate (4).

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