Connecting mechanism of water pump and vehicle body

Abstract

The invention discloses a connecting mechanism for a water pump and a vehicle body, and relates to the technical field of connecting pieces, the connecting mechanism comprises a two-stage connecting assembly, the two-stage connecting assembly comprises a first connecting plate and a second connecting plate, the first connecting plate is rotatably connected to the vehicle body, and a pump body is arranged on the second connecting plate; a rod assembly is arranged between the first connecting plate and the second connecting plate, and the rod assembly can deform to drive the first connecting plate and the second connecting plate to be close to each other or away from each other. According to the connecting mechanism for the water pump and the vehicle body, the whole two-stage connecting assembly can serve as a connecting piece so that the pump body can be fixedly connected to the vehicle body, and meanwhile, the angle between the first connecting plate and the vehicle body and the relative position between the first connecting plate and the second connecting plate can be adjusted; in this way, the relative positions of the vehicle body and the pump body can be adjusted so as to adapt to different working conditions, and water pumping operation can be carried out in bridges, tunnels, pipe networks or river channels.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting parts, and in particular to a connecting mechanism between a water pump and a vehicle body. Background Art

[0002] Large-flow water pumps are generally used in scenarios such as irrigation, firefighting, and flood control and drainage. Large-flow water pumps are generally installed on the vehicle body. For the connection structure between the vehicle body and the water pump, bolts and other fixing methods are used in the existing technology.

[0003] For example, the patent document entitled "A High-efficiency Anti-loosening Fastener for Water Pumps" with the authorization announcement number CN214945477U and the authorization announcement date of November 30, 2021, includes an upper plate, the upper surface of which is provided with a threaded hole, the lower surface of which is fixedly connected to a connecting column, the lower end of which is fixedly connected to a lower plate, and the upper surface of which is provided with a threaded hole. In this patent, the fastener is fixed in two directions, which not only can be fixed more firmly with the bolts, but also can prevent the fastener from loosening due to vibration when the water pump is running, thereby achieving the effect of high-efficiency anti-loosening and fastening.

[0004] In the above patent, the water pump is fixed by bolts. For a large-flow water pump, it is heavy and needs to be moved to different scenarios for operation, such as bridge and tunnel drainage, municipal pipe network drainage, and river dredging and drainage. Obviously, the water pump fixed on the vehicle body cannot select the operating conditions according to the scenario, and it needs to be disassembled and moved when changing its position, which is more cumbersome. Summary of the Invention

[0005] The object of the present invention is to provide a connection mechanism between a water pump and a vehicle body to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A connection mechanism between a water pump and a vehicle body, which is used to connect the vehicle body and the pump body, includes a two-stage connection assembly, wherein the two-stage connection assembly includes a first connection plate and a second connection plate, the first connection plate is rotatably connected to the vehicle body, the pump body is arranged on the second connection plate, and a rod assembly is arranged between the first connection plate and the second connection plate, and the rod assembly can be deformed to drive the first connection plate and the second connection plate to move closer to or away from each other.

[0008] In the above-mentioned connection mechanism between a water pump and a vehicle body, a first hydraulic rod is hinged on the vehicle body, and a terminal end of the first hydraulic rod is hinged to a first connecting plate.

[0009] In the above-mentioned connection mechanism between a water pump and a vehicle body, the pump body is slidably arranged on the second connecting plate.

[0010] The above-mentioned connection mechanism between a water pump and a vehicle body, the rod assembly includes a second hydraulic rod and two square frames, the same end of the two square frames is hinged to the first connecting plate, and the other end is hinged to the second connecting plate, one end of the second hydraulic rod is hinged to the first connecting plate, and the other end is hinged to the second connecting plate.

[0011] In the above-mentioned connection mechanism between a water pump and a vehicle body, the end of the first connection plate away from the vehicle body is rotatably connected to a rocker arm, and a counterweight block is provided at the end of the rocker arm.

[0012] In the above-mentioned connection mechanism between the water pump and the vehicle body, a slider is slidably provided on the first connection plate, a hinged rod is hinged on the slider, and the other end of the hinged rod is hinged to the rocker arm.

[0013] In the above-mentioned connection mechanism between a water pump and a vehicle body, the counterweight block is slidably arranged on the first connecting plate, and the rocker arm is provided with a clamping assembly for clamping the counterweight block.

[0014] In the above-mentioned connection mechanism between a water pump and a vehicle body, the clamping assembly includes a clamping claw arranged at the end of the rocker arm and a latch arranged on the counterweight block.

[0015] In the above-mentioned connection mechanism between a water pump and a vehicle body, a driving member is slidably provided on the first connecting plate, and a driving assembly is provided on the first connecting plate for driving the driving member to slide along the length direction of the first connecting plate, and the driving member is selectively engaged with the counterweight block and the slider.

[0016] In the above-mentioned connection mechanism between a water pump and a vehicle body, when the driving member is engaged with the counterweight block, the driving member drives the counterweight block to slide along the first connecting plate; when the counterweight block and the rocker arm are engaged through the engaging assembly, the driving member is engaged with the slider to drive the slider to slide along the first connecting plate.

[0017] In the above technical solution, the present invention provides a connection mechanism between a water pump and a vehicle body, and the two-stage connection assembly as a whole can act as a connecting part to fix the pump body to the vehicle body. At the same time, the angle between the first connecting plate and the vehicle body and the relative position between the first connecting plate and the second connecting plate can be adjusted. In this way, the relative position of the vehicle body and the pump body can be adjusted to adapt to different working conditions and perform pumping operations in bridges, tunnels, pipelines or rivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a pump structure provided in yet another embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a counterweight block provided in another embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a swing arm structure provided by another embodiment of the present invention;

[0023] Figure 5 A schematic diagram of another state of a pump body provided by another embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a hinged rod structure provided by another embodiment of the present invention;

[0025] Figure 7 A schematic diagram of a slider structure provided by another embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the structure of a driving member provided in another embodiment of the present invention;

[0027] Figure 9 A schematic diagram of a card block structure provided by another embodiment of the present invention;

[0028] Figure 10 A schematic diagram of a block structure provided by another embodiment of the present invention;

[0029] Figure 11 A schematic diagram of a locking groove structure provided by another embodiment of the present invention;

[0030] Figure 12 This is a schematic diagram of a chute structure provided in yet another embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Car body; 2. Pump body; 3. First connecting plate; 4. Second connecting plate; 5. First hydraulic rod; 6. Mounting plate; 7. Second hydraulic rod; 8. Frame; 9. Rocker arm; 10. Counterweight; 11. Slider; 12. Articulated rod; 13. First slide; 14. Second slide; 15. Connecting groove; 16. Driving member; 17. Threaded rod; 18. Driving motor; 19. Connecting block; 20. Insert rod; 21. Slot; 22. Block; 23. Spring; 24. First wedge; 25. Second wedge; 26. Stop block; 27. Wedge block; 28. Connecting column; 29. ​​Locking groove; 30. L-shaped rod; 31. Protrusion; 32. Bevel groove. DETAILED DESCRIPTION

[0033] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0034] With reference to Figure 1-12 The embodiment of the present application provides a connecting mechanism of a water pump and a vehicle body, which is used for connecting a vehicle body 1 and a pump body 2, and comprises a two-stage connecting assembly, the two-stage connecting assembly comprises a first connecting plate 3 and a second connecting plate 4, the first connecting plate 3 is rotationally connected to the vehicle body 1, the pump body 2 is arranged on the second connecting plate 4, and a rod assembly is arranged between the first connecting plate 3 and the second connecting plate 4, the rod assembly can be deformed to drive the first connecting plate 3 and the second connecting plate 4 to move close to or away from each other.

[0035] Specifically, a large-flow water pump is generally cylindrical in structure, one end of which is provided with a water inlet, and the other end is provided with a water outlet. In use, one end of the large-flow water pump is inserted into water, water is pumped through the water inlet, and then the water is discharged through the water outlet. The large-flow water pump is generally arranged on a mobile vehicle to move the large-flow water pump to different scenes (such as bridges, tunnels, pipe networks or rivers). The above are all prior art, and will not be described in detail here. In the prior art, the vehicle body 1 and the pump body 2 are generally fixed by a bolt or other connecting structure, which results in that the position and angle of the pump body 2 cannot be adjusted at will (the method in the prior art is generally to connect a water hose to the pump body 2, and then place the water hose in water to adapt to different working conditions). The innovation of the embodiment of the present application lies in that a two-stage connecting assembly is arranged on the vehicle body 1 to connect and fix the vehicle body 1 and the pump body 2, the two-stage connecting assembly comprises a first connecting plate 3, a second connecting plate 4 and a rod assembly, the first connecting plate 3 and the second connecting plate 4 are arranged in parallel and can drive the first connecting plate 3 and the second connecting plate 4 to move close to or away from each other through the rod assembly (the rod assembly can use a hydraulic shearing frame structure in the prior art to control the relative position between the first connecting plate 3 and the second connecting plate 4), and the first connecting plate 3 is rotationally connected to the vehicle body 1 (the angle between the first connecting plate 3 and the vehicle body 1 can be controlled by a turnover structure, such as a motor turnover structure). In this way, the pump body 2 can be fixedly connected to the vehicle body 1 through the first connecting plate 3, the second connecting plate 4 and the rod assembly, so that the two-stage connecting assembly as a whole acts as a connecting piece (connecting structure) to fix the pump body 2 to the vehicle body 1. At the same time, the angle between the first connecting plate 3 and the vehicle body 1 and the relative position between the first connecting plate 3 and the second connecting plate 4 can be adjusted, so that the relative position of the vehicle body 1 and the pump body 2 can be adjusted to adapt to different working conditions, thereby performing water pumping operation in bridges, tunnels, pipe networks or rivers.

[0036] It should be noted that the two-stage connection assembly as a whole is a connecting part, which is used to fix the pump body 2 on the vehicle body 1, and the two-stage connection assembly itself is composed of multiple components, and the multiple components can be driven to complete the change of relative positions. Compared with the bolt connection structure that needs to be disassembled before changing the position of the pump body 2, the two-stage connection assembly in the embodiment of the present invention can adjust the relative position of the pump body 2 and the vehicle body 1 while ensuring the stable use of the pump body 2, which is more convenient.

[0037] In another embodiment provided by the present invention, as an alternative to the above-mentioned motor-operated flipping structure, a first hydraulic rod 5 is further hingedly connected to the vehicle body 1, and the distal end of the first hydraulic rod 5 is hingedly connected to the first connecting plate 3. Specifically, one end of the first connecting plate 3 is hingedly connected to the vehicle body 1, and the other end is hingedly connected to the first hydraulic rod 5. When the first hydraulic rod 5 is extended, the first connecting plate 3 is driven to flip away from the vehicle body 1, and when the first hydraulic rod 5 is retracted, the first connecting plate 3 is driven to flip toward the vehicle body 1.

[0038] Preferably, the pump body 2 is slidably arranged on the second connecting plate 4. Specifically, a mounting plate 6 is slidably arranged on the second connecting plate 4 along its length direction (a slide rail structure can be provided between the second connecting plate 4 and the mounting plate 6, and a hydraulic rod can be provided on the second connecting plate 4 to drive the mounting plate 6 to slide on the second connecting plate 4. This is a prior art and will not be described in detail here). The pump body 2 is fixed to the mounting plate 6 so as to drive the pump body 2 to slide along the length direction of the second connecting plate 4 through the mounting plate 6, thereby further increasing the adjustment range of the pump body 2 on the vehicle body 1.

[0039] As an alternative to the hydraulic shear frame structure of the above-mentioned rod assembly, the rod assembly further includes a second hydraulic rod 7 and two square frames 8, the two boxes 8 are hinged to the first connecting plate 3 at the same end, and are hinged to the second connecting plate 4 at the other end, and the second hydraulic rod 7 is hinged to the first connecting plate 3 at one end, and to the second connecting plate 4 at the other end. Specifically, the frame 8 is a square frame structure as a whole. One end of the frame 8 is hinged to the first connecting plate 3, and the other end is hinged to the second connecting plate 4. The two frames 8 are arranged in parallel and are respectively located on both sides of the first connecting plate 3 (second connecting plate 4). A parallelogram is formed between the two frames 8, the first connecting plate 3 and the second connecting plate 4. When the angle of one structure changes, the remaining structures will adapt and rotate to a certain angle; the two ends of the second hydraulic rod 7 are respectively hinged to the first connecting plate 3 and the second connecting plate 4, so as to drive the second connecting plate 4 away from the first connecting plate 3 when the second hydraulic rod 7 is extended (the distance between the first connecting plate 3 and the second connecting plate 4 is less than the length of the frame 8), and drive the second connecting plate 4 close to the first connecting plate 3 when the second hydraulic rod 7 is contracted.

[0040] In another embodiment provided by the present invention, further, the end of the first connecting plate 3 away from the vehicle body 1 is rotatably connected to a rocker arm 9, and a counterweight block 10 is provided at the end of the rocker arm 9. Specifically, in the above embodiment, the first hydraulic rod 5 and the second hydraulic rod 7 can drive the pump body 2 to flip away from the vehicle body 1 when extended, so that the pump body 2 rotates to an angle close to perpendicular to the vehicle body 1, and then the mounting plate 6 slides along the second connecting plate 4 to drive the pump body 2 into the water, so as to perform pumping operations in different scenarios; Figure 2 As shown, when the vehicle body 1 is pumping water, the center of gravity of the two-stage connecting assembly and the pump body 2 is located on the right side of the first hydraulic rod 5. The pump body 2 and the two-stage connecting assembly have a tendency to tilt to the right under the action of gravity (when the pump body 2 is running, water flows inside it, and the tendency of the pump body 2 to tilt to the right is aggravated). For this reason, a counterweight block 10 structure is provided on the first connecting plate 3 (as shown in FIG. Figure 3 and Figure 4 As shown); the end of the first connecting plate 3 away from the vehicle body 1 is hinged to the rocker arm 9, and the end of the rocker arm 9 away from the first connecting plate 3 is connected to the counterweight 10 (in this embodiment, the rocker arm 9 and the counterweight 10 can be fixedly connected). In this way, a rotating structure (such as a motor) can be provided on the first connecting plate 3 to drive the rocker arm 9 to rotate relative to the first connecting plate 3, so that when the pump body 2 is running, the counterweight 10 is driven to swing to the left side of the first connecting plate 3 (first hydraulic rod 5) (as shown). Figure 4 As shown, the size and mass of the counterweight 10 can be configured according to the situation) to balance the two-stage connecting assembly and the pump body 2; the advantage is that by setting the counterweight 10, the pump body 2 can be balanced at the expense of increasing the load on the vehicle body 1, thereby increasing the stability of the operation of the pump body 2, and when the relative positions of the pump body 2 and the vehicle body 1 are different, the relative angles of the rocker arm 9 and the first connecting plate 3 can be adjusted to balance the pump body 2 appropriately.

[0041] As an alternative to the above-mentioned method of driving the rocker arm 9 to rotate relative to the first connecting plate 3 by a motor, a slider 11 is further provided on the first connecting plate 3 for sliding movement. The slider 11 is hinged with a hinge rod 12, and the other end of the hinge rod 12 is hinged to the rocker arm 9. Specifically, a first slide groove 13 is constructed on the first connecting plate 3 along its length, and the slider 11 is slidably connected in the first slide groove 13 so that the slider 11 can slide along the length direction of the first connecting plate 3; one end of the hinge rod 12 is hinged to the slider 11, and the other end is hinged to the rocker arm 9; with this configuration, a linear drive structure (such as a hydraulic rod) can be provided on the first connecting plate 3 to drive the slider 11 to slide along the first slide groove 13, thereby controlling the slider 11 to move away from the vehicle body 1 along the first slide groove 13 to drive the rocker arm 9 away from the first connecting plate 3, or controlling the slider 11 to move closer to the vehicle body 1 along the first slide groove 13 to drive the rocker arm 9 closer to the first connecting plate 3.

[0042] As an alternative to the fixed connection between the rocker arm 9 and the counterweight 10 , the counterweight 10 is further slidably arranged on the first connecting plate 3 , and a clamping assembly for clamping the counterweight 10 is provided on the rocker arm 9 . Specifically, a second slide groove 14 is constructed on the first connecting plate 3 along its length direction, and the counterweight block 10 is slidably connected in the second slide groove 14, and a connecting groove 15 is constructed at the end of the second slide groove 14 close to the rocker 9, so that the counterweight block 10 can move out of the second slide groove 14 through the connecting groove 15 when it slides to the end of the second slide groove 14 close to the rocker 9 (that is, the counterweight block 10 swings out of the second slide groove 14 as the rocker 9 swings); the second slide groove 14 is constructed to be open at the end away from the rocker 9, so that the counterweight block 10 can move out of the second slide groove 14 (partially move out) from the end of the second slide groove 14 away from the rocker 9; the clamping assembly can choose the electromagnet adsorption structure in the prior art, and preferably, the clamping assembly includes a clamping claw arranged at the end of the rocker 9 and a pin arranged on the counterweight block 10 (the clamping claw is driven to clamp and fix the pin, which is a prior art and not shown in the figure). The clamp can use the hydraulic driven clamp in the prior art, the latch is located on the side of the counterweight 10 close to the rocker 9 and is adapted to the clamp. When the counterweight 10 moves to the end of the second chute 14 close to the rocker 9, the clamp can clamp and fix the latch on the counterweight 10, so that the rocker 9 and the counterweight 10 are clamped and fixed together. In this embodiment, a linear drive structure can be provided on the first connecting plate 3, such as a combination of a hydraulic rod and a push block, so as to push the counterweight 10 to slide in the second chute 14 through the hydraulic rod and the push block. The advantage of such a setting is that the counterweight 10 can be separated from the rocker 9 and moved to the end of the second chute 14 away from the rocker 9. When the pump body 2 is in a position close to the vehicle body 1 (such as Figure 5 As shown, a support structure can be provided on the vehicle body 1 to support the two-stage connecting assembly and the pump body 2). When the first hydraulic rod 5 is extended, there will be a large resistance (affected by the gravity of the two-stage connecting assembly and the pump body 2). At this time, the rocker arm 9 and the counterweight 10 can be separated and the counterweight 10 can be controlled to move to the end of the second chute 14 away from the rocker arm 9 ( Figure 5 In the process, the counterweight 10 is separated from the rocker arm 9 and moves to the opening of the second slide groove 14). At this time, the counterweight 10 can balance the non-operating pump body 2 to provide assistance for the extension of the first hydraulic rod 5; after the pump body 2 moves to a position close to vertical with the vehicle body 1, the counterweight 10 is controlled to fit into the rocker arm 9 and the two are fixed by the clamping assembly. Then, the slider 11 is controlled to move along the first slide groove 13 to drive the rocker arm 9 and the counterweight 10 to swing, thereby balancing the running pump body 2 through the rocker arm 9.

[0043] Furthermore, a driving member 16 is slidably provided on the first connecting plate 3, and a driving assembly for driving the driving member 16 to slide along the length direction of the first connecting plate 3 is provided on the first connecting plate 3, and the driving member 16 is selectively engaged with the counterweight 10 and the slider 11. Specifically, the driving assembly can use a hydraulic rod structure in the prior art. Preferably, a threaded rod 17 is provided on the first connecting plate 3 along its length direction, and the driving member 16 is threadedly connected to the threaded rod 17 via a ball screw. A driving motor 18 is fixed on the first connecting plate 3, one end of the threaded rod 17 is rotatably connected to the first connecting plate 3, and the other end is fixed to the output end of the driving motor 18, and the driving member 16 is slidably connected in the first slide 13; a clamping assembly can be provided between the driving member 16 and the counterweight 10 and between the driving member 16 and the slider 11, so that the driving member 16 can be selectively engaged and fixed with the counterweight 10 or the slider 11 (the driving member 16 is not engaged and fixed with both the counterweight 10 and the slider 11 at the same time).

[0044] When the driving member 16 is engaged with the counterweight 10, the driving member 16 drives the counterweight 10 to slide along the first connecting plate 3; when the counterweight 10 and the rocker 9 are engaged through the engaging assembly, the driving member 16 is engaged with the slider 11 to drive the slider 11 to slide along the first connecting plate 3. With such an arrangement, in this embodiment, the linear driving structure for driving the counterweight 10 and the slider 11 to slide along the first connecting plate 3 in the above embodiment can be omitted. In this embodiment, only the driving assembly needs to be retained to drive the driving member 16 to slide along the first slide groove 13. When the counterweight 10 moves to the end of the second slide groove 14 close to the rocker 9, the driving member 16 simultaneously fits the counterweight 10 and the slider 11. At this time, the driving member 16 can be optionally engaged and fixed with the counterweight 10 or the slider 11. If the driving member 16 is engaged with the counterweight 10, the counterweight 1 0 is separated from the rocker arm 9, so that the driving member 16 drives the counterweight 10 to slide along the second chute 14, thereby adapting to different working conditions to balance the two-stage connecting assembly and the pump body 2; if the driving member 16 is engaged with the slider 11, the counterweight 10 is engaged with the rocker arm 9, and the driving member 16 and the slider 11 slide synchronously in the first chute 13, thereby driving the rocker arm 9 and the counterweight 10 to rotate relative to the first connecting plate 3, thereby adjusting the angle between the rocker arm 9 and the first connecting plate 3 in the basic working condition, further improving the balancing effect of the counterweight 10. The advantage is that in this embodiment, the driving member 16 and the engaging assembly can selectively drive the counterweight 10 and the slider 11 to move along the first connecting plate 3, thereby adjusting the position of the counterweight 10 in the second chute 14 or adjusting the angle between the rocker arm 9 and the counterweight 10, thereby improving the balancing effect of the counterweight 10 on the two-stage connecting assembly and the pump body 2.

[0045] In another embodiment provided by the present invention, as an alternative to the above-mentioned snap-in assembly, further, the end of the rocker arm 9 away from the first connecting plate 3 is constructed with a connecting block 19, a socket is constructed on the connecting block 19, the counterweight block 10 is constructed with an insertion rod 20 adapted to the socket, a slot 21 is constructed on the insertion rod 20, a movable groove is constructed on the inner wall of the socket, a blocking block 22 is slidably arranged in the movable groove, the blocking block 22 and the slot 21 are constructed as wedges adapted to each other (after the counterweight block 10 fits the connecting block 19 so that the insertion rod 20 is inserted into the socket, the blocking block 22 is inserted into the slot 21 to prevent the counterweight block 10 and the connecting block 19 from separating), a spring 23 is provided in the movable groove, blocking blocks 22 are provided on both sides of the movable groove, and slots 21 are constructed on both sides of the opposite sides of the insertion rod 20, the two blocking blocks 22 are respectively located on both sides of the socket, and the two ends of the spring 23 are respectively fixed to the two blocking blocks 22, so that the two blocking blocks 22 are forced to approach each other and move into the socket through the spring 23. A first wedge-shaped portion 24 is constructed on the side of the driving member 16 close to the counterweight 10, and a second wedge-shaped portion 25 is constructed on the side of the counterweight 10 close to the driving member 16. Two rocker arms 9 are hinged on the first connecting plate 3, and the ends of the two rocker arms 9 are constructed with connecting blocks 19 to clamp and fix the counterweight 10 through the two connecting blocks 19 (correspondingly, two hinged rods 12 are hinged on the slider 11, and the two hinged rods 12 are hinged to the two rocker arms 9 respectively). There is a certain gap between the two connecting blocks 19, and a stopper 26 is constructed on the driving member 16. When the counterweight 10 is fitted into the connecting block 19, the stopper 26 is located between the two connecting blocks 19; a wedge block 27 is constructed at one end of the clamping block 22, and the wedge block 27 is located outside the movable groove. A connecting column 28 is constructed on the driving member 16. The connecting column 28 is L-shaped as a whole. One end of the connecting column 28 is fixed to the driving member 16, and the other end extends to the moving stroke of the wedge block 27. The first slide 13 is provided with a locking groove 29 connected thereto, and the slider 11 is provided with a rotating groove, in which an L-shaped rod 30 is rotatably connected, and a torsion spring (not shown) is provided in the rotating groove. When the rotating groove and the locking groove 29 correspond to each other, the torsion spring can force one end of the L-shaped rod 30 to abut against the inner wall of the rotating groove, and at the same time force the other end of the L-shaped rod 30 to rotate into the locking groove 29; the driving member 16 is provided with a protrusion 31, and the protrusion 31 is provided with an inclined groove 32. The end of the inclined groove 32 away from the driving member 16 is closer to the connecting column 28, and the end of the inclined groove 32 away from the driving member 16 is configured as an opening. When one end of the L-shaped rod 30 abuts against the inner wall of the rotating groove so that the other end is rotated into the locking groove 29, one end of the L-shaped rod 30 is exposed from the rotating groove and corresponds to the opening of the inclined groove 32, so that when the driving member 16 approaches the slider 11, the end of the L-shaped rod 30 can enter the inclined groove 32 through the opening of the inclined groove 32.

[0046] With such arrangement, when the counterweight 10 and the connecting block 19 are separated, the L-shaped rod 30 is rotated into the locking groove 29 under the action of the torsion spring to limit the position of the slider 11 in the first slide groove 13, thereby limiting the relative position of the rocker arm 9 and the hinge rod 12; at this time, the driving member 16 can force the counterweight 10 to approach the rocker arm 9 along the second slide groove 14 by the first wedge-shaped portion 24, or to force the counterweight 10 to move away from the rocker arm 9 along the second slide groove 14 by the stopper 26; when the driving member 16 drives the counterweight 10 to approach the rocker arm 9, the insertion rod 20 on the counterweight 10 is inserted into the corresponding insertion hole, so as to force the two blocking blocks 22 to overcome the elastic force of the spring 23 and interlock with each other through the end of the insertion rod 20. When the counterweight 10 is fitted with the connecting block 19, the slots 21 on the rod 20 correspond to the slots 21, so that the two slots 22 can be inserted into the corresponding slots 21 under the elastic force of the spring 23, thereby fixing the counterweight 10 to the rocker 9 and the connecting block 19 through the slots 22; in the process of inserting the rod 20 into the socket, the connecting post 28 moves from one side of the wedge block 27 to the other side. Since the end of the rod 20 can force the two slots 22 to move away from each other, the two wedge blocks 27 can also move away from each other, so that the connecting post 28 can pass between the two wedge blocks 27 without interfering with each other, until the slots 22 are inserted into the corresponding slots 21, the two wedge blocks 27 are fixed to each other. 32, and the L-shaped rod 30 is moved out of the locking groove 29. 11 to interfere with each other, forcing the slider 11 away from the vehicle body 1 and driving the rocking rod 9 and the counterweight 10 to rotate, so that the counterweight 10 moves out of the opening of the second sliding groove 14. During this process, the first wedge-shaped portion 24 can also interfere with the second wedge-shaped portion 25 to provide assistance to the rocking rod 9. In the process of the driving member 16 driving the slider 11 to move, one end of the L-shaped rod 30 is located in the inclined groove 32, and the other end is located in the rotation groove and the first sliding groove 13, so that the L-shaped rod 30 is restricted by the first sliding groove 13 and cannot rotate under the action of the torsion spring, that is, the L-shaped rod 30 cannot move out of the inclined groove 32, so that when the driving member 16 approaches the vehicle body 1 along the first sliding groove 13, it can drive the L-shaped rod 30 and the slider 11 to move along the first sliding groove 13 through the inner wall of the inclined groove 32.When the counterweight 10 needs to be received into the second slide groove 14, the driving member 16 drives the slider 11 to move so that the rotating groove corresponds to the locking groove 29. At this time, the rocker 9 is reset to drive the counterweight 10 from the opening of the second slide groove 14 into the second slide groove 14. Then the driving member 16 continues to move away from the rocker 9. The end of the L-shaped rod 30 can gradually enter the locking groove 29 under the action of the torsion spring. At the same time, one end of the L-shaped rod 30 moves out of the inclined groove 32 to separate the driving member 16 and the slider 11. During the separation process of the driving member 16 and the slider 11, the connecting post 28 approaches the two wedge blocks 27, forcing the two wedge blocks 27 to overcome the elastic force of the spring 23 and move away from each other through the connecting post 28, thereby driving the two clamping blocks 22 to move out of the corresponding clamping grooves 21, thereby releasing the clamping connection between the counterweight 10 and the connecting block 19. Then the driving member 16 can drive the counterweight 10 to slide along the second slide groove 14 through the stop block 26.

[0047] It should be noted that when the counterweight block 10 moves to the open end of the second slide groove 14, the insertion rod 20 on the counterweight block 10 can be inserted into the insertion hole to continue to guide the counterweight block 10 to move, and try to avoid the counterweight block 10 from disengaging from the second slide groove 14 when it is not engaged with the connecting block 19; in this embodiment, the counterweight block 10 has a certain gap between the stop block 26 and the first wedge-shaped portion 24, and try to avoid the stop block 26 from interfering with the counterweight block 10 when the connecting column 28 forces the two blocks 22 to move away from each other, that is, when the engagement between the counterweight block 10 and the connecting block 19 is released, the first wedge-shaped portion 24 and the second wedge-shaped portion 25 are separated, and the stop block 26 gradually approaches the counterweight block 10 until the connecting column 28 hits the two wedge-shaped portions to separate the counterweight block 10 and the connecting block 19, and the stop block 26 is attached to the outer wall of the counterweight block 10.

[0048] The advantage of such a setting is that, in this embodiment, multiple sets of active clamping structures in the above-mentioned embodiments are omitted. In the process of the driving member 16 moving along the second slide groove 14, the counterweight 10 or the slider 11 is passively driven by the structures such as the clamping block 22, the connecting column 28 and the L-shaped rod 30. When the driving member 16 is engaged with the counterweight 10, the clamping between the counterweight 10 and the connecting block 19 is passively released, and at the same time, the position of the slider 11 in the first slide groove 13 is restricted, so that the driving member 16 can drive the counterweight 10 to slide in the second slide groove 14; when the driving member 16 is engaged with the slider 11, the counterweight 10 and the connecting block 19 are passively clamped, and at the same time, the restriction on the slider 11 is released, so that the driving member 16 can drive the slider 11 to slide in the first slide groove 13 to adjust the angle of the rocker arm 9 relative to the first connecting plate 3, thereby balancing the two-stage connection assembly and the pump body 2.

[0049] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A connection mechanism between a water pump and a vehicle body, which is used to connect the vehicle body and the pump body, comprising a two-stage connection assembly, characterized in that: The two-stage connecting assembly includes a first connecting plate and a second connecting plate, the first connecting plate is rotatably connected to the vehicle body, the pump body is arranged on the second connecting plate, and a rod assembly is arranged between the first connecting plate and the second connecting plate, and the rod assembly can be deformed to drive the first connecting plate and the second connecting plate to move closer to or away from each other.

2. The connection mechanism between a water pump and a vehicle body according to claim 1, characterized in that: A first hydraulic rod is hinged on the vehicle body, and a terminal end of the first hydraulic rod is hinged to the first connecting plate.

3. The connection mechanism between a water pump and a vehicle body according to claim 1, characterized in that: The pump body is slidably arranged on the second connecting plate.

4. The connection mechanism between a water pump and a vehicle body according to claim 1, characterized in that: The rod assembly includes a second hydraulic rod and two square frames, the same end of the two square frames is hinged to the first connecting plate, and the other end is hinged to the second connecting plate. One end of the second hydraulic rod is hinged to the first connecting plate, and the other end is hinged to the second connecting plate.

5. The connection mechanism between a water pump and a vehicle body according to claim 1, characterized in that: One end of the first connecting plate away from the vehicle body is rotatably connected to a rocker, and a counterweight is provided at the end of the rocker.

6. The connection mechanism between a water pump and a vehicle body according to claim 5, characterized in that: A slider is slidably provided on the first connecting plate, a hinge rod is hinged on the slider, and the other end of the hinge rod is hinged to the swing arm.

7. The connection mechanism between a water pump and a vehicle body according to claim 6, characterized in that: The counterweight block is slidably arranged on the first connecting plate, and the rocker arm is provided with a clamping assembly for clamping the counterweight block.

8. The connection mechanism between a water pump and a vehicle body according to claim 7, characterized in that: The clamping assembly includes a clamping claw arranged on the end of the swing rod and a latch arranged on the counterweight block.

9. The connection mechanism between a water pump and a vehicle body according to claim 8, characterized in that: A driving member is slidably provided on the first connecting plate. A driving assembly is provided on the first connecting plate for driving the driving member to slide along the length direction of the first connecting plate. The driving member is selectively engaged with the counterweight block and the slider.

10. The connection mechanism between a water pump and a vehicle body according to claim 9, characterized in that: When the driving member is engaged with the counterweight, the driving member drives the counterweight to slide along the first connecting plate; When the counterweight block and the rocker arm are clamped together by the clamping assembly, the driving member is clamped together with the slider to drive the slider to slide along the first connecting plate.

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