Sand suction pump for laying ship

Abstract

The present invention relates to the technical field of sand suction pumps, a paving ship sand suction pump, comprising a sand suction pump body, the bottom end of the sand suction pump body is fixedly connected with a mesh cover, the outer side of the mesh cover is sleeved and fixedly connected with an interception cover, the bottom end of the sand suction pump body is provided with a cutting mechanism for quickly cutting off aquatic plants or rope-like garbage, the rotating rod is rotatably connected to the bottom end of the sand suction pump body, the first connecting rod is fixedly connected to the side wall of the rotating rod, the scraper is fixedly connected to the outer end of the first connecting rod, and the second connecting rod is fixedly connected to the side wall of the rotating rod. The paving ship sand suction pump is provided with a cutting auxiliary blade at the frame of the interception cover fixedly connected to the mesh cover, and the first connecting rod, the second connecting rod of the scraper and the cutter are respectively installed on the rotating rod rotatably connected in the mesh cover and the interception cover, so as to prevent aquatic plants from clogging the mesh cover or winding around the impeller in the sand suction pump body.

Description

Technical Field

[0001] The invention relates to the technical field of sand suction pumps, in particular to a sand suction pump for a laying ship. Background Art

[0002] The sand suction pump of the paving ship is a key equipment on the paving ship for sucking bottom sediment. Like the ordinary sand suction pump, it relies on the rotation of the impeller to generate centrifugal force to form a low-pressure area in the pump, so that the water containing sediment is sucked into the pump under the action of atmospheric pressure and then discharged through the discharge port.

[0003] The above device does not have an anti-entanglement structure for the sand suction pump when in use, so that in order to prevent the pump impeller from being entangled by water plants or other foreign objects when in use, most of the existing sand suction pumps have a filter screen added at the sand suction port to block the debris. However, the filter screen is easily blocked by debris or water plants when in use, thereby affecting the suction speed of the sand suction pump and even causing damage to the sand suction pump. Based on the shortcomings of the existing technology, the present invention designs a sand suction pump for a laying ship. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sand suction pump for a laying ship, which has the advantage of anti-winding of the sand suction pump.

[0005] The present invention provides the following technical solution: a sand suction pump for a laying ship, comprising a sand suction pump body, a mesh cover is fixedly connected to the bottom end of the sand suction pump body, an interception cover is sleeved and fixedly connected to the outer side of the mesh cover, a cutting mechanism is arranged at the bottom end of the sand suction pump body for quickly cutting off water plants or rope-like garbage, and a mixing mechanism is arranged at the bottom of the cutting mechanism for stirring mud and sand over a large area;

[0006] The cutting mechanism comprises a rotating rod, a first connecting rod, a scraper, a second connecting rod, a cutter and a cutting auxiliary edge. The rotating rod is rotatably connected to the bottom end of the sand suction pump body, the first connecting rod is fixedly connected to the side wall of the rotating rod, the scraper is fixedly connected to the outer end of the first connecting rod, the second connecting rod is fixedly connected to the side wall of the rotating rod, the cutter is fixedly connected to the outer end of the second connecting rod, and the cutting auxiliary edge is arranged at the edge of the notch of the interception cover.

[0007] As a preferred technical solution of the present invention, the mixing mechanism includes a stirring hood, supporting legs, a transmission gear, a bottom cover, a rotating hole, a driven gear, a rotating shaft rod and a stirring wheel. The stirring hood is fixedly connected to the lower surface of the intercepting hood, the supporting legs are fixedly connected to the side walls of the stirring hood, the transmission gear is fixedly connected to the lower end of the rotating rod, the bottom cover is arranged at the bottom of the stirring hood, the rotating hole is penetrated and opened in the lower surface of the bottom cover, the driven gear is rotatably connected to the inside of the stirring hood, the rotating shaft rod is fixedly connected to the lower end of the driven gear, and the stirring wheel is fixedly connected to the lower end of the rotating shaft rod.

[0008] As a preferred technical solution of the present invention, a rotating seat is fixedly connected to the bottom of the inner cavity of the interception cover, and a rotating bearing is rotatably connected to the bottom of the inner cavity of the mesh cover.

[0009] As a preferred technical solution of the present invention, a discharge connector is fixedly connected to the side wall of the sand suction pump body, and a submersible motor is arranged on the upper surface of the sand suction pump body.

[0010] As a preferred technical solution of the present invention, a suction port is provided at the bottom of the sand suction pump body, and an impeller is provided inside the sand suction pump body.

[0011] As a preferred technical solution of the present invention, the top end of the rotating rod is fixedly connected to the transmission shaft of the impeller in the main body of the sand suction pump.

[0012] As a preferred technical solution of the present invention, the rotating rod passes through and is rotatably connected to the interior of the rotating seat, and the rotating rod is rotatably connected to the interior of the rotating bearing.

[0013] As a preferred technical solution of the present invention, the scraper is rotatably and slidably connected to the outer surface of the mesh cover, the cutter is rotatably and slidably connected to the inner wall of the interception cover, and the cutter is rotatably and slidably connected to the inner side of the auxiliary cutting edge.

[0014] As a preferred technical solution of the present invention, the transmission gear and the driven gear are rotatably connected between the stirring cover and the bottom cover, and the rotating shaft is rotatably connected inside the rotating hole.

[0015] As a preferred technical solution of the present invention, the driven gear is rotatably connected to the lower surface of the bottom cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The sand suction pump for laying boats, when the main body of the sand suction pump sinks to the bottom of the water to suck sand, the transmission shaft of the impeller rotating in the main body of the sand suction pump also drives the rotating rod to start rotating accordingly. During the rotation of the rotating rod, the scraper and the cutter connected by the first connecting rod and the second connecting rod are respectively slidably connected to the outer surface of the mesh cover and the inner wall of the interception cover. When water grass or rope-like underwater garbage enters the interception cover, the high-speed rotating cutter can quickly cut the water grass and rope with the assistance of the interception cover and the auxiliary cutting blade to prevent them from being entangled with the impeller in the main body of the sand suction pump. If the cut water grass or rope is still large in size, it will be intercepted by the mesh cover and thrown out by the scraping of the scraper or cut to a smaller size by the cutter and the auxiliary cutting blade. The device is convenient for preventing water grass or underwater rope-like garbage from being entangled with the impeller in the main body of the sand suction pump.

[0018] 2. The sand suction pump for laying boats is arranged so that the main body of the sand suction pump is placed on the bottom of the water in a vertical direction or moves on the bottom of the water in a vertical posture. When the submersible motor is started to drive the impeller in the main body of the sand suction pump to rotate for sand suction operation, the rotating rod connected to the impeller drives the transmission gear connected to the bottom end to rotate accordingly, and at the same time, the rotating transmission gear drives the driven gear meshing with it to start rotating. At this time, the three sets of stirring wheels connected to the driven gear through the rotating shaft rod at the bottom of the bottom cover also start to rotate. When the stirring wheel rotates, the bottom sediment under the stirring cover can be quickly stirred to diffuse to both sides and upward, and then sucked into the cut-off mechanism and the mesh cover and sent out by the main body of the sand suction pump. The device is convenient for stirring the bottom sediment in a large range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of the sand suction pump of the present invention;

[0021] Figure 3 It is a schematic diagram of the explosion structure of the mesh cover and the sand suction pump of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the connection between the interception cover and the cut-off mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the stirring mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the stirring mechanism of the present invention.

[0025] In the figure: 1. sand suction pump body; 101. discharge connector; 102. submersible motor; 2. mesh cover; 201. interception cover; 202. rotating seat; 203. rotating bearing; 3. cutting mechanism; 301. rotating rod; 302. first connecting rod; 303. scraper; 304. second connecting rod; 305. cutter; 306. cutting auxiliary blade; 4. mixing mechanism; 401. stirring cover; 402. supporting leg; 403. transmission gear; 404. bottom cover; 405. rotating hole; 406. driven gear; 407. rotating shaft; 408. stirring wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6The paving ship sand suction pump comprises a sand suction pump body 1, a mesh cover 2 is fixedly connected to the bottom end of the sand suction pump body 1, an interception cover 201 is fixedly connected to the outer side of the mesh cover 2, a cutting mechanism 3 for quickly cutting off aquatic plants or rope-like garbage is arranged at the bottom of the sand suction pump body 1, a mixing mechanism 4 for stirring mud and sand over a large area is arranged at the bottom of the cutting mechanism 3, a discharge connector 101 is fixedly connected to the side wall of the sand suction pump body 1, a submersible motor 102 is arranged on the upper surface of the sand suction pump body 1, a suction port is opened at the bottom of the sand suction pump body 1, and an impeller is arranged inside the sand suction pump body 1.

[0028] See also Figure 3-4 , the cutting mechanism 3 includes a rotating rod 301, a first connecting rod 302, a scraper 303, a second connecting rod 304, a cutter 305 and a cutting auxiliary blade 306. The rotating rod 301 is rotatably connected to the bottom end of the sand suction pump body 1, the first connecting rod 302 is fixedly connected to the side wall of the rotating rod 301, the scraper 303 is fixedly connected to the outer end of the first connecting rod 302, the second connecting rod 304 is fixedly connected to the side wall of the rotating rod 301, the cutter 305 is fixedly connected to the outer end of the second connecting rod 304, and the cutting auxiliary blade 306 is arranged at the edge of the notch of the interception cover 201 The top of the rotating rod 301 is fixedly connected to the transmission shaft of the impeller in the sand suction pump body 1, the rotating rod 301 penetrates and is rotatably connected to the inside of the rotating seat 202, the rotating rod 301 is rotatably connected to the inside of the rotating bearing 203, the scraper 303 is rotatably connected to the outer surface of the mesh cover 2, the cutter 305 is rotatably connected to the inner wall of the intercepting cover 201, and the cutter 305 is rotatably slidable on the inner side of the auxiliary cutting edge 306, the inner cavity bottom of the intercepting cover 201 is fixedly connected to the rotating seat 202, and the inner cavity bottom of the mesh cover 2 penetrates and is rotatably connected to the rotating bearing 203.

[0029] The mesh cover 2 and the interception cover 201 are provided to intercept larger debris, ropes or water plants from entering the sand suction pump body 1 and entangle the impeller so that the pump cannot work. The cutter 305 and the auxiliary cutting blade 306 are provided to shred the debris entering the interception cover 201. The first connecting rod 302 and the scraper 303 are provided to rotate and scrape at the bottom of the mesh cover 2 to prevent larger debris that cannot be removed from clogging the filter holes of the mesh cover 2 and affecting the sand suction efficiency.

[0030] See also Figure 5-6The mixing mechanism 4 includes a stirring cover 401, a support leg 402, a transmission gear 403, a bottom cover 404, a rotating hole 405, a driven gear 406, a rotating shaft rod 407 and a stirring wheel 408. The stirring cover 401 is fixedly connected to the lower surface of the intercepting cover 201, the support leg 402 is fixedly connected to the side wall of the stirring cover 401, the transmission gear 403 is fixedly connected to the lower end of the rotating rod 301, the bottom cover 404 is arranged at the bottom of the stirring cover 401, and the rotating hole 405 penetrates through the opening. Located on the lower surface of the bottom cover 404, the driven gear 406 is rotatably connected to the inside of the stirring cover 401, the rotating shaft rod 407 is fixedly connected to the lower end of the driven gear 406, the stirring wheel 408 is fixedly connected to the lower end of the rotating shaft rod 407, the transmission gear 403 and the driven gear 406 are rotatably connected between the stirring cover 401 and the bottom cover 404, the rotating shaft rod 407 is rotatably connected to the inside of the rotating hole 405, and the driven gear 406 is rotatably connected to the lower surface of the bottom cover 404.

[0031] By setting stirring wheels 408, and the number of stirring wheels 408 is three, the stirring range of the bottom mud can be increased, and at the same time, the vortices generated by each stirring wheel 408 can interfere with each other to diffuse the mud. By setting the moving gear 403, the driven gear 406 and the rotating shaft rod 407, when the rotating rod 301 rotates, the moving gear 403 can drive the three groups of driven gears 406 to rotate, and drive the stirring wheel 408 to rotate through the rotating shaft rod 407. By setting the bottom cover 404, it is easy to prevent the sink or rope garbage from entangled with the moving gear 403 and the driven gear 406. By setting the supporting legs 402, a certain distance can be set between the stirring wheel 408 and the bottom mud to better stir the mud and expand it.

[0032] Working principle: when the sand suction pump of the laying ship is used, in the initial state, the discharge connector 101 is first set on one side of the sand suction pump body 1, and a submersible motor 102 is installed at the top of the sand suction pump body 1. At the same time, a mesh cover 2 is also provided at the bottom water inlet of the sand suction pump body 1 to facilitate sand suction operations, and a cutting auxiliary blade 306 is provided at the frame of the interception cover 201 fixedly connected to the mesh cover 2. The first connecting rod 302, the scraper 303, the second connecting rod 304 and the cutter 305 are respectively installed on the rotating rod 301 rotatably connected in the mesh cover 2 and the interception cover 201, so as to prevent water plants from clogging the mesh cover 2 or winding the impeller in the sand suction pump body 1;

[0033] When it is necessary to prevent water plants or underwater rope-like garbage from being entangled with the impeller in the sand suction pump body 1, first, when the sand suction pump body 1 sinks to the bottom of the water to suck sand, the transmission shaft of the impeller rotating in the sand suction pump body 1 also drives the rotating rod 301 to start rotating accordingly. During the rotation of the rotating rod 301, the scraper 303 and the cutter 305 connected by the first connecting rod 302 and the second connecting rod 304 are respectively slidably connected to the outer surface of the net cover 2 and the inner wall of the interception cover 201, and the water plants or rope-like underwater garbage are entangled. When garbage enters the interception cover 201, the high-speed rotating cutter 305 can quickly cut the water grass and rope with the assistance of the interception cover 201 and the cutting auxiliary blade 306 to prevent it from being entangled in the impeller of the sand suction pump body 1. If the cut water grass or rope is still large in size, it will be intercepted by the net cover 2 and thrown out by the scraper 303 or cut into a smaller size by the cutter 305 and the cutting auxiliary blade 306. This device is convenient for preventing water grass or underwater rope garbage from being entangled in the impeller of the sand suction pump body 1.

[0034] When it is necessary to stir the bottom sediment, firstly, the sand suction pump body 1 is placed on the bottom of the water in a vertical direction or moved on the bottom of the water in a vertical posture. When the submersible motor 102 is started to drive the impeller in the sand suction pump body 1 to rotate to suck sand, the rotating rod 301 connected to the impeller drives the transmission gear 403 connected to the bottom end to rotate accordingly. At the same time, the rotating transmission gear 403 drives the driven gear 406 meshing therewith to start rotating. At this time, the three groups of stirring wheels 408 connected to the driven gear 406 through the rotating shaft rod 407 at the bottom of the bottom cover 404 also start to rotate. When the stirring wheel 408 rotates, the bottom sediment under the stirring cover 401 can be quickly stirred to diffuse to both sides and upward, and sucked into the cutoff mechanism 3 and the net cover 2, and then sent out by the sand suction pump body 1. The device is convenient for stirring the bottom sediment in a large range.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand suction pump for a laying ship, comprising a sand suction pump body (1), characterized in that: The bottom end of the sand suction pump body (1) is fixedly connected to a mesh cover (2), the outer side of the mesh cover (2) is sleeved and fixedly connected to an interception cover (201), the bottom end of the sand suction pump body (1) is provided with a cutting mechanism (3) for quickly cutting off aquatic plants or rope-like garbage, and the bottom of the cutting mechanism (3) is provided with a stirring mechanism (4) for stirring sediment over a large area; The cutting mechanism (3) comprises a rotating rod (301), a first connecting rod (302), a scraper (303), a second connecting rod (304), a cutter (305) and a cutting auxiliary blade (306), wherein the rotating rod (301) is rotatably connected to the bottom end of the sand suction pump body (1), the first connecting rod (302) is fixedly connected to the side wall of the rotating rod (301), the scraper (303) is fixedly connected to the outer end of the first connecting rod (302), the second connecting rod (304) is fixedly connected to the side wall of the rotating rod (301), the cutter (305) is fixedly connected to the outer end of the second connecting rod (304), and the cutting auxiliary blade (306) is arranged at the edge of the notch of the interception cover (201).

2. The sand suction pump for laying ship according to claim 1, characterized in that: The mixing mechanism (4) comprises a stirring cover (401), a supporting leg (402), a transmission gear (403), a bottom cover (404), a rotating hole (405), a driven gear (406), a rotating shaft (407) and a stirring wheel (408); the stirring cover (401) is fixedly connected to the lower surface of the intercepting cover (201); the supporting leg (402) is fixedly connected to the side wall of the stirring cover (401); the transmission gear (403) The bottom cover (404) is fixedly connected to the lower end of the rotating rod (301), the bottom cover (404) is arranged at the bottom of the stirring cover (401), the rotating hole (405) is opened through the lower surface of the bottom cover (404), the driven gear (406) is rotatably connected to the inside of the stirring cover (401), the rotating shaft (407) is fixedly connected to the lower end of the driven gear (406), and the stirring wheel (408) is fixedly connected to the lower end of the rotating shaft (407).

3. The sand suction pump for laying ship according to claim 1, characterized in that: The bottom of the inner cavity of the interception cover (201) is fixedly connected to a rotating seat (202), and the bottom of the inner cavity of the mesh cover (2) is rotatably connected to a rotating bearing (203).

4. The sand suction pump for a laying ship according to claim 1, characterized in that: A discharge connector (101) is fixedly connected to the side wall of the sand suction pump body (1), and a submersible motor (102) is arranged on the upper surface of the sand suction pump body (1).

5. The sand suction pump for laying ship according to claim 1, characterized in that: A suction port is provided at the bottom of the sand suction pump body (1), and an impeller is provided inside the sand suction pump body (1).

6. The sand suction pump for a laying ship according to claim 1, characterized in that: The top end of the rotating rod (301) is fixedly connected to the transmission shaft of the impeller in the sand suction pump body (1).

7. The sand suction pump for a laying ship according to claim 1, characterized in that: The rotating rod (301) penetrates and is rotatably connected to the inside of the rotating seat (202), and the rotating rod (301) is rotatably connected to the inside of the rotating bearing (203).

8. The sand suction pump for a laying ship according to claim 1, characterized in that: The scraper (303) is rotatably and slidably connected to the outer surface of the mesh cover (2), the cutter (305) is rotatably and slidably connected to the inner wall of the interception cover (201), and the cutter (305) is rotatably and slidably connected to the inner side of the auxiliary cutting edge (306).

9. The sand suction pump for a laying ship according to claim 2, characterized in that: The transmission gear (403) and the driven gear (406) are rotatably connected between the stirring cover (401) and the bottom cover (404), and the rotating shaft (407) is rotatably connected inside the rotating hole (405).

10. The sand suction pump for a laying ship according to claim 2, characterized in that: The driven gear (406) is rotatably connected to the lower surface of the bottom cover (404).

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