Fishing device for forebay of seawater pump room

Abstract

The invention relates to the related technical field of seawater pump rooms, in particular to a seawater pump room forebay fishing device which comprises first large arms and second large arms, the first large arms and the second large arms are hinged to the front side and the rear side of a first hinge piece respectively, and the first large arm and the second large arm on the front side and the rear side are arranged in an X shape; a power piece used for driving the first large arms and the second large arms on the same front and back side to do shear fork motion is arranged on the first hinge piece, the lower ends of the two first large arms are fixedly connected with a right grabbing plate, the lower ends of the two second large arms are fixedly connected with a left grabbing plate, and a pressure triggering assembly is arranged between the two first large arms and the two second large arms. When the pressure triggering assembly makes contact with a floating object, the first large arm and the second large arm on the same side in the front-back direction do scissor-fork movement under the action of the power piece. On-site operators are connected with the connecting piece through a rope buckle of a crane or connected with the connecting piece through a fishing rod to achieve high-position fishing of floating objects. The seawater pump room forebay fishing device is simple in structure and convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field related to seawater pump houses, and particularly to a salvage device for the forebay of a seawater pump house. Background Art

[0002] A seawater pump house is a sub-item with high process design standards and complex civil engineering design, and its status in a nuclear power plant is second only to the nuclear island and the conventional island buildings. The seawater pump house provides sufficient cooling water to both the condenser of the conventional island and the equipment cooling water system of the nuclear island, ensuring the normal power generation operation of the nuclear power plant, the cooling of nuclear island equipment, and the safe shutdown during accidents. Its main functions include:

[0003] 1. Providing filtered seawater for the circulating water system and the important plant service water system, and this function is completed by the circulating water filtration system;

[0004] 2. Providing the necessary cooling water volume for the condensers of the steam turbine generator sets and the auxiliary cooling water system, and this function is completed by the circulating water system;

[0005] 3. Transmitting the heat load collected by the equipment cooling water system in the nuclear island building to the ultimate heat sink - seawater, and this function is completed by the important plant service water system.

[0006] Floating objects often flow with the water body and finally gather in large quantities in the forebay of the seawater pump house. Since the forebay of the seawater pump house often has a relatively high drop and there is a siphon phenomenon at the low tide level, there is a drawback that small boats cannot be used for salvage operations, which has a great impact on the safety of on-site operators and the cold source for the operation of the unit. Summary of the Invention

[0007] The purpose of the present invention is to provide a salvage device for the forebay of a seawater pump house to solve the technical problems existing in the above background art.

[0008] To achieve the above purpose, the technical solution of the present invention is as follows:

[0009] A salvage device for the forebay of a seawater pump house, comprising: a first boom, a second boom, a first hinge, a right grab plate and a left grab plate. Two first booms and two second booms are symmetrically arranged front and back. The two first booms and the two second booms are respectively hinged on the front and back sides of the first hinge. The first booms and the second booms on the same side front and back are arranged in an X shape. A power member for driving the first booms and the second booms on the same side front and back to perform a scissor movement is provided on the first hinge. The lower ends of the two first booms are fixedly connected with the right grab plate, and the lower ends of the two second booms are fixedly connected with the left grab plate. A pressure trigger assembly is arranged between the two first booms and the two second booms. When the pressure trigger assembly does not contact the floating object, the lower ends of the first booms and the second booms on the same side front and back are in an open-mouth setting. When the pressure trigger assembly contacts the floating object, the first booms and the second booms on the same side front and back perform a scissor movement under the action of the power member. The upper ends of the two first booms and the two second booms are connected with a connecting member. On-site operators can achieve high-position salvage of the floating object by connecting the connecting member through the rope buckle of the crane or by connecting the connecting member through the salvage rod.

[0010] Further, the first hinge comprises: a first screw and a first nut. The first screw penetrates through and rotatably connects the two first booms and the two second booms from right to left and is threadedly connected with the first nut at the front end of the first boom at the front part.

[0011] Further, the power member comprises: a first longitudinal plate, a second longitudinal plate and a torsion spring. The first longitudinal plate is longitudinally fixedly connected at a position on the side of the two first booms close to the right grab plate. The second longitudinal plate is longitudinally fixedly connected at a position on the side of the two second booms close to the left grab plate. The torsion spring is sleeved on the first screw and its two ends respectively press against and contact the upper end surfaces of the first longitudinal plate and the second longitudinal plate.

[0012] Further, it further comprises: a third longitudinal plate, a fourth longitudinal plate, a first transverse plate and a second transverse plate. The third longitudinal plate is longitudinally fixedly connected inside the lower ends of the two first booms. The fourth longitudinal plate is longitudinally fixedly connected inside the lower ends of the two second booms. A plurality of first transverse plates are evenly arranged between the first longitudinal plate and the third longitudinal plate. A plurality of second transverse plates are evenly arranged between the second longitudinal plate and the fourth longitudinal plate.

[0013] Further, the pressure trigger assembly comprises: a hinge shaft, a support plate, a limit pin, a trigger triangular plate and a longitudinal trigger rod. Two hinge shafts, two support plates, two limit pins and two trigger triangular plates are symmetrically arranged front and back. The two hinge shafts are symmetrically and fixedly connected to the lower side of the outer ends of the two first booms. The two limit pins are symmetrically and fixedly connected to the lower side of the outer ends of the two second booms. One end of each of the two support plates is respectively hinged on the two hinge shafts. A bayonet is opened on the lower side of the other end of each support plate. The bayonets on the two support plates are respectively detachably buckled on the two limit pins. The two trigger triangular plates are respectively symmetrically and fixedly connected to the bottom ends of the two support plates. The bottom corner point of the trigger triangular plate is vertically coplanar with the axis of the first screw. The front and back ends of the longitudinal trigger rod are respectively fixedly connected between the lower ends of the two trigger triangular plates.

[0014] Further, the bottom ends of the right grab plate and the left grab plate are both provided with engaging teeth.

[0015] Further, the connecting member includes: a second hinge member, a first small arm, a third hinge member, a second small arm, a fourth hinge member, a connecting seat, a rope buckle ring, and a fishing rod. The first small arm and the second small arm are both symmetrically arranged in the front and rear with two each. The lower ends of the two first small arms and the upper ends of the two first large arms are respectively hinged to the front and rear sides of the second hinge member. The lower ends of the two second small arms and the upper ends of the two second large arms are respectively hinged to the front and rear sides of the third hinge member. The upper ends of the two first small arms and the upper ends of the two second small arms are respectively hinged to the front and rear sides of the fourth hinge member. The middle of the top end of the fourth hinge member is fixedly connected with a connecting seat. Two rope buckle rings are symmetrically arranged on the left and right sides of the top end of the connecting seat. The rope buckle of the crane is buckled on the two rope buckle rings. A threaded groove is opened in the middle of the top end of the connecting seat. The bottom end of the fishing rod is threadedly connected in the threaded groove.

[0016] Further, the second hinge member includes a second screw rod and a second nut. The second screw rod sequentially passes through and rotatably connects the upper ends of the two first large arms and the lower ends of the two first small arms from front to back and is threadedly connected with the second nut at the rear end of the rear first large arm; the third hinge member includes a third screw rod and a third nut. The third screw rod sequentially passes through and rotatably connects the upper ends of the two second large arms and the lower ends of the two second small arms from front to back and is threadedly connected with the third nut at the rear end of the rear second large arm; the fourth hinge member includes a fourth screw rod and two fourth nuts. The two fourth nuts are provided. The front and rear ends of the fourth screw rod respectively pass through the upper ends of the two first small arms and the upper ends of the two second small arms and are respectively threadedly connected with two fourth nuts on the outer ends of the two first small arms; the connecting seat is fixedly connected to the middle of the upper end of the fourth screw rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The on-site operators can connect the rope buckle of the crane to the two rope buckle rings or thread the fishing rod into the connecting seat, and stand on the high place in front of the forebay of the seawater pump house to stretch the whole device into the forebay for floating object salvage, without having to take a small boat for salvage operations, ensuring the safety of the on-site operators; when the whole device is salvaging, only need to make the longitudinal trigger rod contact with the floating object, and under the action of the gravity of the whole device, make the support plate disengage from the limit pin. Under the action of the torsion spring, the two first large arms and the two second large arms make a scissor movement and drive the right grab plate and the left grab plate to clamp the floating object. By lifting the whole device by the crane or the on-site operators, the floating object can be lifted up to complete the cleaning of the floating object; the whole device is simple to process, flexible to install, easy to operate, convenient to use and has a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is the front view of the present invention;

[0021] Figure 3 is the right-side perspective view of the present invention;

[0022] Figure 4 is the bottom perspective view of the present invention.

[0023] The reference numerals in the drawings are: 1 - first boom, 2 - second boom, 3 - first hinge, 4 - first longitudinal plate, 5 - second longitudinal plate, 6 - torsion spring, 7 - third longitudinal plate, 8 - fourth longitudinal plate, 9 - first transverse plate, 10 - second transverse plate, 11 - right gripping plate, 12 - left gripping plate, 13 - hinge shaft, 14 - support plate, 15 - limit pin, 16 - trigger triangular plate, 17 - longitudinal trigger rod, 18 - second hinge, 19 - first forearm, 20 - third hinge, 21 - second forearm, 22 - fourth hinge, 23 - connecting seat, 2301 - threaded groove, 24 - rope buckle ring, 25 - fishing rod. Detailed implementation manners

[0024] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0025] Referring to Figures 1 to 4 as shown, a salvage device for the front pool of a seawater pump house includes: a first boom 1, a second boom 2, a first hinge 3, a right gripping plate 11 and a left gripping plate 12. Two first booms 1 and two second booms 2 are symmetrically arranged front and rear. The two first booms 1 and the two second booms 2 are respectively hinged on the front and rear sides of the first hinge 3. The first booms 1 and the second booms 2 on the same front and rear side are arranged in an X shape. A power member for driving the first booms 1 and the second booms 2 on the same front and rear side to perform a scissor movement is provided on the first hinge 3. The lower ends of the two first booms 1 are fixedly connected to the right gripping plate 11, and the lower ends of the two second booms 1 are fixedly connected to the left gripping plate 12. A pressure trigger assembly is arranged between the two first booms 1 and the two second booms 2. When the pressure trigger assembly does not contact the floating object, the lower ends of the first booms 1 and the second booms 2 on the same front and rear side are open. When the pressure trigger assembly contacts the floating object, the first booms 1 and the second booms 2 on the same front and rear side perform a scissor movement under the action of the power member; the upper ends of the two first booms 1 and the two second booms 2 are connected with a connecting member, and on-site operators can achieve high-position salvage of the floating object by connecting the connecting member through the rope buckle of the crane or by connecting the connecting member through the fishing rod 25.

[0026] In this embodiment, the first hinge 3 includes: a first screw rod and a first nut. The first screw rod passes through and rotatably connects the two first booms 1 and the two second booms 2 from right rear to front, and a first nut is threadedly connected to the front end of the first boom 1 at the front part.

[0027] In this embodiment, the power component includes: a first longitudinal plate 4, a second longitudinal plate 5, and a torsion spring 6. The first longitudinal plate 4 is longitudinally and fixedly connected to the position on the side of the two first arms 1 close to the right gripper plate 11. The second longitudinal plate 5 is longitudinally and fixedly connected to the position on the side of the two second arms 2 close to the left gripper plate 12. The torsion spring 6 is sleeved on the first screw rod, and its two ends are respectively pressed against and in contact with the upper end surfaces of the first longitudinal plate 4 and the second longitudinal plate 5. The torsion spring 6 provides power support for the scissor movement of the first arm 1 and the second arm 2.

[0028] In this embodiment, it further includes: a third longitudinal plate 7, a fourth longitudinal plate 8, a first transverse plate 9, and a second transverse plate 10. The third longitudinal plate 7 is longitudinally and fixedly connected to the inner sides of the lower ends of the two first arms 1. The fourth longitudinal plate 8 is longitudinally and fixedly connected to the inner sides of the lower ends of the two second arms 2. A number of first transverse plates 9 are evenly arranged between the first longitudinal plate 4 and the third longitudinal plate 7. A number of second transverse plates 10 are evenly arranged between the second longitudinal plate 5 and the fourth longitudinal plate 8. The arranged first transverse plates 9 and second transverse plates 10 can ensure that the floating object can be stably clamped.

[0029] In this embodiment, the pressure trigger assembly includes: a hinge shaft 13, a support plate 14, a limit pin 15, a trigger triangular plate 16, and a longitudinal trigger rod 17. There are two hinge shafts 13, support plates 14, limit pins 15, and trigger triangular plates 16, which are symmetrically arranged in the front and rear. The two hinge shafts 13 are symmetrically and fixedly connected to the lower side of the outer ends of the two first arms 1. The two limit pins 15 are symmetrically and fixedly connected to the lower side of the outer ends of the two second arms 2. One end of each of the two support plates 14 is respectively hinged to the two hinge shafts 13. A bayonet is provided on the lower side of the other end of the support plate 14. The bayonets on the two support plates 14 are respectively detachably buckled on the two limit pins 15. The two trigger triangular plates 16 are respectively symmetrically and fixedly connected to the bottom ends of the two support plates 14. The bottom corner point of the trigger triangular plate 16 is vertically coplanar with the axis of the first screw rod. The front and rear ends of the longitudinal trigger rod 17 are respectively fixedly connected between the lower ends of the two trigger triangular plates 16. When the longitudinal trigger rod 17 contacts the floating object, it drives the two support plates 14 to disengage from the two limit pins 15 through the two trigger triangular plates 16.

[0030] In this embodiment, the bottom ends of the right gripper plate 11 and the left gripper plate 12 are both provided with teeth, and the provided teeth can ensure that the right gripper plate 11 and the left gripper plate 12 cooperate to firmly clamp the floating object.

[0031] In this embodiment, the connecting member includes: the second hinge member 18, the first small arm 19, the third hinge member 20, the second small arm 21, the fourth hinge member 22, the connecting seat 23, the rope buckle ring 24 and the fishing rod 25. There are two first small arms 19 and two second small arms 21, which are symmetrically arranged front and back. The lower ends of the two first small arms 19 and the upper ends of the two first large arms 1 are respectively hinged to the front and back sides of the second hinge member 18. The lower ends of the two second small arms 21 and the upper ends of the two second large arms 2 are respectively hinged to the front and back sides of the third hinge member 20. The upper ends of the two first small arms 19 and the upper ends of the two second small arms 21 are respectively hinged to the front and back sides of the fourth hinge member 22. The middle of the top end of the fourth hinge member 22 is fixedly connected with the connecting seat 23. Two rope buckle rings 24 are symmetrically arranged on the left and right sides of the top end of the connecting seat 23. The rope buckle of the crane is buckled on the two rope buckle rings 24. A threaded groove 2301 is opened in the middle of the top end of the connecting seat 23. The bottom end of the fishing rod 25 is threadedly connected in the threaded groove 2301. When in use, the rope buckle of the crane can be selected to connect the rope buckle ring 24 to lift the whole device above the floating object for fishing the floating object; or the on-site operator can threadedly connect the fishing rod 25 to the connecting seat 23 and extend the whole device into the forebay for fishing.

[0032] In this embodiment, the second hinge member 18 includes a second screw rod and a second nut. The second screw rod sequentially penetrates and rotatably connects the upper ends of the two first large arms 1 and the lower ends of the two first small arms 19 from front to back and is threadedly connected with the second nut at the rear end of the rear first large arm 1. The third hinge member 20 includes a third screw rod and a third nut. The third screw rod sequentially penetrates and rotatably connects the upper ends of the two second large arms 2 and the lower ends of the two second small arms 21 from front to back and is threadedly connected with the third nut at the rear end of the rear second large arm 2. The fourth hinge member 22 includes a fourth screw rod and two fourth nuts. The front and rear ends of the fourth screw rod respectively penetrate the upper ends of the two first small arms 19 and the upper ends of the two second small arms 21 and are respectively threadedly connected with two fourth nuts on the outer ends of the two first small arms 19. The connecting seat 23 is fixedly connected to the middle of the upper end of the fourth screw rod.

[0033] When the device is in use, the on-site operator first opens the right grab plate 11 and the left grab plate 12, and then respectively snaps the two support plates 14 onto the two limit pins 15. At this time, the torsion spring 6 is stressed. Then, the rope buckle of the crane is selected to connect the rope buckle ring 24 to lift the whole device above the floating object for fishing the floating object; or the on-site operator threadedly connects the fishing rod 25 to the connecting seat 23 and extends the whole device into the forebay for fishing. When fishing, only let the longitudinal trigger rod 17 contact the floating object, and under the action of the gravity of the whole device, the support plate 14 is separated from the limit pin 15. Under the action of the torsion spring 6, the two first large arms 1 and the two second large arms 2 perform a scissor movement and drive the right grab plate 11 and the left grab plate 12 to clamp the floating object. By lifting the whole device by the crane or the on-site operator, the floating object can be lifted up to complete the cleaning of the floating object. The whole device is simple to process, flexible to install, easy to operate, convenient to use and low in manufacturing cost.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0035] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the relevant art, without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, any simple modifications, equivalent replacements, and improvements made to the above embodiments shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A salvage device for the forebay of a seawater pump house, characterized in that, Including: A first boom (1), a second boom (2), a first hinge member (3), a right grab plate (11), and a left grab plate (12). Two first booms (1) and two second booms (2) are symmetrically arranged front and rear. The two first booms (1) and the two second booms (2) are respectively hinged on the front and rear sides of the first hinge member (3). The first boom (1) and the second boom (2) on the same side front and rear are arranged in an X shape. A power member for driving the first boom (1) and the second boom (2) on the same side front and rear to perform a scissor movement is provided on the first hinge member (3). The lower ends of the two first booms (1) are fixedly connected to the right grab plate (11), and the lower ends of the two second booms (1) are fixedly connected to the left grab plate (12). A pressure trigger assembly is provided between the two first booms (1) and the two second booms (2). When the pressure trigger assembly does not contact the floating object, the lower ends of the first boom (1) and the second boom (2) on the same side front and rear are in an open-mouth setting. When the pressure trigger assembly contacts the floating object, the first boom (1) and the second boom (2) on the same side front and rear perform a scissor movement under the action of the power member. The upper ends of the two first booms (1) and the two second booms (2) are connected with a connecting member. The on-site operator can realize the high-position salvage of the floating object by connecting the connecting member through the rope buckle of the crane or by connecting the connecting member through the salvage rod (25).

2. The salvage device for the forebay of a seawater pump house according to claim 1, wherein: The first hinge member (3) includes: a first screw rod and a first nut. The first screw rod penetrates through and rotatably connects the two first booms (1) and the two second booms (2) from right to left and is threadedly connected with the first nut at the front end of the front first boom (1).

3. The seawater pump house forebay salvage device according to claim 2, characterized in that: The power member includes: a first longitudinal plate (4), a second longitudinal plate (5), and a torsion spring (6). The first longitudinal plate (4) is longitudinally fixedly connected at a position on the side of the two first booms (1) close to the right grab plate (11). The second longitudinal plate (5) is longitudinally fixedly connected at a position on the side of the two second booms (2) close to the left grab plate (12). The torsion spring (6) is sleeved on the first screw rod and its two ends respectively press against and contact the upper end surfaces of the first longitudinal plate (4) and the second longitudinal plate (5).

4. The seawater pump house forebay salvage device according to claim 3, wherein: Also including: A third longitudinal plate (7), a fourth longitudinal plate (8), a first transverse plate (9), and a second transverse plate (10). The third longitudinal plate (7) is longitudinally fixedly connected to the inner sides of the lower ends of the two first booms (1). The fourth longitudinal plate (8) is longitudinally fixedly connected to the inner sides of the lower ends of the two second booms (2). A plurality of first transverse plates (9) are evenly arranged between the first longitudinal plate (4) and the third longitudinal plate (7). A plurality of second transverse plates (10) are evenly arranged between the second longitudinal plate (5) and the fourth longitudinal plate (8).

5. The salvage device for the forebay of a seawater pump house according to claim 2, wherein: The pressure trigger assembly includes: a hinge shaft (13), a support plate (14), a limit pin (15), a trigger triangular plate (16), and a longitudinal trigger rod (17). There are two of each of the hinge shaft (13), the support plate (14), the limit pin (15), and the trigger triangular plate (16), which are symmetrically arranged front and back. The two hinge shafts (13) are symmetrically and fixedly connected to the lower side of one side of the outer ends of the two first arms (1). The two limit pins (15) are symmetrically and fixedly connected to the lower side of one side of the outer ends of the two second arms (2). One end of each of the two support plates (14) is hinged to the two hinge shafts (13) respectively. A bayonet is provided on the lower side of the other end of the support plate (14). The bayonets on the two support plates (14) are respectively detachably buckled on the two limit pins (15). The two trigger triangular plates (16) are respectively symmetrically and fixedly connected to the bottom ends of the two support plates (14). The bottom corner point of the trigger triangular plate (16) is vertically coplanar with the axis of the first screw. The front and rear ends of the longitudinal trigger rod (17) are respectively fixedly connected to the lower ends between the two trigger triangular plates (16).

6. The seawater pump house forebay salvage device according to claim 1, characterized in that: The bottom ends of the right gripping plate (11) and the left gripping plate (12) are both provided with teeth.

7. The seawater pump house forebay salvage device according to claim 1, characterized in that: The connecting member includes: a second hinge member (18), a first small arm (19), a third hinge member (20), a second small arm (21), a fourth hinge member (22), a connecting seat (23), a rope buckle ring (24), and a fishing rod (25). There are two of each of the first small arm (19) and the second small arm (21), which are symmetrically arranged front and back. The front and rear sides of the second hinge member (18) are respectively hinged to the lower ends of the two first small arms (19) and the upper ends of the two first arms (1). The front and rear sides of the third hinge member (20) are respectively hinged to the lower ends of the two second small arms (21) and the upper ends of the two second arms (2). The front and rear sides of the fourth hinge member (22) are respectively hinged to the upper ends of the two first small arms (19) and the upper ends of the two second small arms (21). The middle of the top end of the fourth hinge member (22) is fixedly connected with a connecting seat (23). Two rope buckle rings (24) are symmetrically arranged on the left and right sides of the top end of the connecting seat (23). The rope of the crane is buckled on the two rope buckle rings (24). A threaded groove (2301) is provided in the middle of the top end of the connecting seat (23). The bottom end of the fishing rod (25) is threadedly connected to the threaded groove (2301).

8. The salvage device for the forebay of a seawater pump house according to claim 7, characterized in that: The second hinge member (18) includes a second screw and a second nut. The second screw sequentially penetrates and rotatably connects the upper ends of two first boom arms (1) and the lower ends of two first forearm arms (19) from front to back, and is threadedly connected to the second nut at the rear end of the rear first boom arm (1). The third hinge member (20) includes a third screw and a third nut. The third screw sequentially penetrates and rotatably connects the upper ends of two second boom arms (2) and the lower ends of two second forearm arms (21) from front to back, and is threadedly connected to the third nut at the rear end of the rear second boom arm (2). The fourth hinge member (22) includes a fourth screw and two fourth nuts. The fourth nuts are provided with two. The front and rear ends of the fourth screw respectively penetrate the upper ends of two first forearm arms (19) and the upper ends of two second forearm arms (21), and two fourth nuts are respectively threadedly connected to the outer ends of the two first forearm arms (19). The connecting seat (23) is fixedly connected to the middle of the upper end of the fourth screw.

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