Efficient energy-saving double suction pump

Abstract

The utility model relates to the technical field of double suction pumps, in particular to a high-efficiency energy-saving double suction pump, which comprises a pump body, and is characterized in that an upper shell and a lower shell are respectively arranged above and below the pump body, the upper shell and the lower shell are rotatably connected through a hinge, and the opposite surfaces of the upper shell and the lower shell are attached to each other; an up-down buffer mechanism and a pump opening buffer mechanism are arranged in each of the upper shell and the lower shell, each up-down buffer mechanism comprises a hydraulic buffer rod, the hydraulic buffer rods are arranged right above and right below the pump body, the pump body can be wrapped by the upper shell and the lower shell, and the upper shell and the lower shell are hinged to each other, so that the pump opening buffer mechanism is formed. The pump body can be conveniently taken out so as to facilitate replacement and maintenance of the pump body in the later period, vibration generated in the using process of the pump body can be efficiently buffered through the upper buffering mechanism, the lower buffering mechanism and the transverse buffering mechanism which are arranged in the upper shell and the lower shell, the structure is simple, taking and using are convenient, the manufacturing cost is low, and a large amount of expenditure is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-suction pumps, in particular to a high-efficiency and energy-saving double-suction pump. Background Art

[0002] As an important form of centrifugal pump, double-suction pump is widely used in engineering because of its high head and large flow rate. The impeller of this pump type is actually composed of two back-to-back impellers, and the water flowing out of the impellers flows into a volute. The double-suction pump has the following characteristics: it is equivalent to two single-suction impellers of the same diameter working at the same time, and the flow rate can be doubled under the same impeller outer diameter; the pump casing is horizontally opened, which is convenient for inspection and maintenance. At the same time, the inlet and outlet of the double-suction pump are in the same direction and perpendicular to the pump shaft, which is conducive to the layout and installation of the pump and the inlet and outlet pipes; the impeller structure of the double-suction pump is symmetrical, there is no axial force, and the operation is relatively stable.

[0003] The patent with announcement number CN212744346U discloses a shock-absorbing double-suction pump, including a double-suction pump body, which is fixedly mounted on a mounting plate, and the mounting plate is connected to the top of a mounting seat through a lifting mechanism, and a buffer seat is connected to the bottom of the mounting seat, and a number of evenly distributed spring shock absorbers and shock-absorbing mechanisms are connected between the bottom of the mounting seat and the bottom of the buffer seat.

[0004] The above patent has the advantage that when the double-suction pump body is working, it will generate vibration, driving the mounting seat to move up and down relative to the buffer seat. The spring shock absorber and the shock absorbing mechanism can absorb the impact force in the vibration process and reduce the amplitude, thereby playing a buffering role, making the double-suction pump more stable during operation; at the same time, by setting a lifting mechanism, when there is water on the ground, the height of the double-suction pump body can be adjusted to prevent the accumulated water from seeping into the double-suction pump body and affecting the normal operation. However, in actual use scenarios, due to the large size of the double-suction pump, the shock absorbing mechanism of the newly designed shock-absorbing double-suction pump is too complicated and bulky, with a high manufacturing cost. In addition, the large size makes it inconvenient to carry and wastes manpower.

[0005] In view of this situation, the purpose of the utility model is to provide an efficient and energy-saving double-suction pump to solve the problems that the shock absorbing mechanism is too complicated, bulky, has a high manufacturing cost, is inconvenient to carry due to its large size, and wastes manpower. Utility Model Content

[0006] In view of the above problems, the present application provides a high-efficiency and energy-saving double-suction pump: comprising a pump body, wherein an upper shell and a lower shell are respectively arranged above and below the pump body, wherein the upper shell and the lower shell are rotatably connected by a hinge, and the opposite surfaces are arranged in close contact, and upper and lower buffer mechanisms and a pump port buffer mechanism are arranged inside the upper shell and the lower shell, wherein the upper and lower buffer mechanisms comprise hydraulic buffer rods, and the hydraulic buffer rods are arranged just above and just below the pump body;

[0007] The upper shell and the lower shell are both provided with pump port grooves at positions close to the water inlet and the water outlet of the pump body, and a pump port buffer mechanism is provided at each pump port groove position.

[0008] Specifically, the upper and lower buffer mechanisms also include a seat, and the two seat are respectively fitted with the upper surface and the lower surface of the pump body, and each of the seat is provided with two first slide grooves on a side away from the pump body, and two upper sliders are slidably installed in each of the first slide grooves, and two second slide grooves are respectively provided on the surfaces of the upper shell and the lower shell opposite to the first slide grooves, and two lower sliders are slidably installed in each of the second slide grooves, and the eight upper sliders and lower sliders are opposite to each other, and a hydraulic buffer rod is arranged between each group of upper sliders and lower sliders, and the two ends of each hydraulic buffer rod are respectively fixedly connected to the surface of the upper slider and the lower slider, and the outer wall of each hydraulic buffer rod is sleeved with a first spring, and the two ends of each first spring are respectively fixedly connected to the surface of the upper slider and the lower slider.

[0009] Specifically, a connecting rod is provided between the two upper sliders and the two lower sliders sliding in the same first slide groove and the second slide groove, and the two ends of the connecting rod are rotationally connected to the obliquely corresponding upper slider and the lower slider, and the two connecting rods in the same group are rotationally connected at the middle part of the intersection.

[0010] Specifically, the pump port buffer mechanism includes a pump port block, and the side wall of the pump port block near the water inlet of the pump body is a semicircular arc surface. The two pump port blocks close to each other are used in combination to clamp the water inlet and outlet of the pump body. Two transverse sliders are fixed on the side wall of each pump port block close to the upper shell or the lower shell. A third slide groove is provided on the side wall of the upper shell and the lower shell close to the transverse slider, and the two transverse sliders in the same group are slidably installed in the same third slide groove.

[0011] Specifically, a telescopic rod is arranged between each of the transverse sliders and the side wall of the third slide groove, and the two ends of the telescopic rod are respectively fixedly connected to the transverse slider and the side wall of the third slide groove. A second spring is sleeved on the outer wall of the telescopic rod, and the two ends of the second spring are respectively fixedly connected to the transverse slider and the side wall of the third slide groove.

[0012] Specifically, a push handle is fixed on the side wall of the upper shell, four universal wheels are rotatably mounted on the lower surface of the lower shell, and the upper shell, the lower shell and the pump port block are all made of sound insulation materials.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model discloses a high-efficiency and energy-saving double-suction pump, in which the pump body can be wrapped by the upper shell and the lower shell. The upper shell and the lower shell are hinged to facilitate the removal of the pump body, so as to facilitate the replacement and maintenance of the pump body at a later time. The upper and lower buffer mechanisms and the lateral buffer mechanism arranged in the upper shell and the lower shell can effectively buffer the vibration generated during the use of the pump body. The utility model has a simple structure, is easy to use, has a low manufacturing cost, and saves a lot of money.

[0015] (2) The utility model discloses a high-efficiency and energy-saving double-suction pump. Through the arrangement of a push handle and universal wheels, the overall device is lightweight and can be used more conveniently by the user. The user pushes the push handle to move the upper shell, thereby moving the lower shell and the overall device. There is no need to waste manpower or activate other equipment to move the overall device, which saves material costs and a lot of manpower, material resources and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the overall structure of a high-efficiency and energy-saving double-suction pump provided by the utility model;

[0018] Figure 2 A schematic diagram of a high-efficiency and energy-saving double-suction pump hinge provided by the utility model;

[0019] Figure 3 A schematic diagram of an upper and lower buffer mechanism of a high-efficiency and energy-saving double-suction pump provided by the utility model;

[0020] Figure 4 A schematic diagram of a connecting rod of a high-efficiency and energy-saving double-suction pump provided by the utility model;

[0021] Figure 5 A high-efficiency and energy-saving double-suction pump provided by the utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0022] In the figure: 1. pump body; 2. upper shell; 21. push handle; 3. lower shell; 31. hinge; 32. universal wheel; 4. upper and lower buffer mechanisms; 41. seat; 42. upper slider; 43. lower slider; 44. hydraulic buffer rod; 45. first spring; 46. connecting rod; 5. pump port buffer mechanism; 51. pump port block; 52. telescopic rod; 53. second spring; 54. transverse slider. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 5 As shown, the utility model discloses a high-efficiency and energy-saving double-suction pump, comprising a pump body 1, wherein an upper shell 2 and a lower shell 3 are respectively arranged above and below the pump body 1, wherein the upper shell 2 and the lower shell 3 are rotatably connected by a hinge 31, and the opposite surfaces are arranged in close contact, wherein upper and lower buffer mechanisms 4 and a pump port buffer mechanism 5 are arranged inside the upper shell 2 and the lower shell 3, wherein the upper and lower buffer mechanisms 4 comprise hydraulic buffer rods 44, and the hydraulic buffer rods 44 are arranged just above and just below the pump body 1;

[0025] The upper shell 2 and the lower shell 3 are both provided with pump port grooves near the water inlet and the water outlet of the pump body 1 , and a pump port buffer mechanism 5 is provided at each pump port groove.

[0026] The upper shell 2 and the lower shell 3 can wrap the pump body 1 inside. Through the hinged design of the upper shell 2 and the lower shell 3, the pump body 1 can be easily removed to facilitate the replacement and maintenance of the pump body 1 at a later time. The upper and lower buffer mechanisms 4 and the lateral buffer mechanism arranged in the upper shell 2 and the lower shell 3 can efficiently buffer the vibration generated during the use of the pump body 1. The structure is simple, easy to use, low in production cost, and a lot of money can be saved.

[0027] Specifically, the upper and lower buffer mechanisms 4 further include a cushion seat 41, and the two cushion seats 41 are respectively arranged to fit the upper surface and the lower surface of the pump body 1, and each of the cushion seats 41 is provided with two first slide grooves on a side away from the pump body 1, and two upper sliders 42 are slidably installed in each of the first slide grooves, and two second slide grooves are respectively provided on the surfaces of the upper shell 2 and the lower shell 3 opposite to the first slide grooves, and two lower sliders 43 are slidably installed in each of the second slide grooves, and the eight upper sliders 42 and the lower sliders 43 are opposite to each other, and a hydraulic buffer rod 44 is arranged between each group of upper sliders 42 and lower sliders 43, and the two ends of each hydraulic buffer rod 44 are respectively fixedly connected to the surfaces of the upper slider 42 and the lower slider 43, and the outer wall of each hydraulic buffer rod 44 is sleeved with a first spring 45, and the two ends of each first spring 45 are respectively fixedly connected to the surfaces of the upper slider 42 and the lower slider 43.

[0028] Specifically, a connecting rod 46 is provided between the two upper sliders 42 and the two lower sliders 43 sliding in the same first slide groove and the second slide groove, and the two ends of the connecting rod 46 are rotationally connected to the obliquely corresponding upper slider 42 and the lower slider 43, and the two connecting rods 46 in the same group are rotationally connected at the middle part of the intersection.

[0029] The pump body 1 vibrates during operation, and the vibration of the pump body 1 will drive the pad 41 that is in contact with the upper and lower surfaces of the pump body 1 to move up and down. The up and down movement of the pad 41 drives the upper slider 42 to move up and down. During the movement of the upper slider 42, the connecting rod 46 is squeezed, and the force generated by the squeezing is transmitted to the lower slider 43. Since the connecting rod 46 and the upper slider 42 and the lower slider 43 are all rotationally connected, the upper slider 42 slides relative to or toward each other in the first slide groove while moving up and down, and the lower slider 43 slides synchronously with the upper slider 42. The hydraulic buffer rod 44 fixedly connected between the upper slider 42 and the lower slider 43 of the same group reflects the feedback of elongation or shortening as the distance between the upper slider 42 and the lower slider 43 increases or decreases. At the same time, the first spring 45 mounted on the outer wall of the hydraulic buffer rod 44 is stretched and compressed. The hydraulic buffer rod 44 and the first spring 45 are used in combination to better buffer the vibration of the pump body 1, thereby providing a good protection effect on the pump body 1 to avoid damage to the pump body 1 caused by excessive vibration amplitude.

[0030] Specifically, the pump port buffer mechanism 5 includes a pump port block 51, and the side wall of the pump port block 51 near the water inlet of the pump body 1 is a semicircular arc surface. The two pump port blocks 51 close to each other are used together to clamp the water inlet and outlet of the pump body 1. Two transverse sliders 54 are fixed on the side wall of each pump port block 51 close to the upper shell 2 or the lower shell 3. A third slide groove is opened on the side wall of the upper shell 2 and the lower shell 3 close to the transverse slider 54, and the two transverse sliders 54 in the same group are slidably installed inside the same third slide groove.

[0031] Specifically, a telescopic rod 52 is arranged between each of the transverse sliders 54 and the side wall of the third slide groove, and the two ends of the telescopic rod 52 are respectively fixedly connected to the transverse slider 54 and the side wall of the third slide groove. The outer wall of the telescopic rod 52 is sleeved with a second spring 53, and the two ends of the second spring 53 are respectively fixedly connected to the transverse slider 54 and the side wall of the third slide groove.

[0032] The pump body 1 will vibrate laterally at the same time. Since the pump body 1 is clamped with a pump port block 51 at the water inlet and the water outlet, the vibration of the pump body 1 drives the pump port block 51 to move, and the pump port block 51 drives the transverse slider 54 to move. The transverse slider 54 slides in the third slide groove, thereby driving the second spring 53 to compress or stretch, so as to buffer the water inlet and the water outlet of the pump body 1. The setting of the telescopic rod 52 can better ensure the stability of the sliding of the transverse slider 54, thereby ensuring the smoothness of the movement of the pump port block 51, thereby providing good buffering protection for the pump body 1.

[0033] Specifically, a push handle 21 is fixed on the side wall of the upper shell 2, and four universal wheels 32 are rotatably mounted on the lower surface of the lower shell 3. The upper shell 2, the lower shell 3 and the pump port block 51 are all made of sound insulation materials.

[0034] The setting of the push handle 21 and the universal wheel 32 makes the whole device light and more convenient for the user to use during use. The user pushes the push handle 21 to drive the upper shell 2 to move, and then drives the lower shell 3 and the whole device to move. There is no need to waste manpower or use other equipment to move the whole device, which saves material costs and a lot of manpower, material resources and time.

[0035] Working principle: the pump body 1 vibrates during operation, and the vibration of the pump body 1 will drive the pad 41 that is in contact with the upper and lower surfaces of the pump body 1 to move up and down. The up and down movement of the pad 41 drives the upper slider 42 to move up and down. During the movement of the upper slider 42, the connecting rod 46 is squeezed, and the force generated by the squeezing is transmitted to the lower slider 43. Since the connecting rod 46 and the upper slider 42 and the lower slider 43 are all rotationally connected, the upper slider 42 slides relative to or toward each other in the first slide groove while moving up and down, and the lower slider 43 slides synchronously with the upper slider 42. The hydraulic buffer rod 44 fixedly connected between the upper slider 42 and the lower slider 43 of the same group reflects the feedback of elongation or shortening as the distance between the upper slider 42 and the lower slider 43 increases or decreases, and at the same time, the first spring 45 mounted on the outer wall of the hydraulic buffer rod 44 is stretched and compressed.

[0036] It should be mentioned that the vibration of the pump body 1 will also cause lateral vibration. Since the water inlet and outlet of the pump body 1 are clamped with a pump port block 51, the vibration of the pump body 1 drives the pump port block 51 to move, and the pump port block 51 drives the lateral slider 54 to move. The lateral slider 54 slides in the third slide groove, thereby driving the second spring 53 to compress or stretch, thereby buffering the water inlet and outlet of the pump body 1. The setting of the telescopic rod 52 can better ensure the stability of the sliding of the lateral slider 54, thereby ensuring the smoothness of the movement of the pump port block 51, thereby providing good buffering protection for the pump body 1.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A high-efficiency and energy-saving double-suction pump, comprising a pump body (1), characterized in that: An upper shell (2) and a lower shell (3) are respectively arranged above and below the pump body (1); the upper shell (2) and the lower shell (3) are rotatably connected via a hinge (31) and are arranged with their opposite surfaces in close contact; upper and lower buffer mechanisms (4) and a pump port buffer mechanism (5) are arranged inside the upper shell (2) and the lower shell (3); the upper and lower buffer mechanisms (4) include hydraulic buffer rods (44); and the hydraulic buffer rods (44) are arranged directly above and directly below the pump body (1); The upper shell (2) and the lower shell (3) are both provided with pump port grooves at positions close to the water inlet and the water outlet of the pump body (1), and a pump port buffer mechanism (5) is provided at each pump port groove position.

2. A high-efficiency and energy-saving double-suction pump according to claim 1, characterized in that: The upper and lower buffer mechanisms (4) further include a cushion seat (41), wherein the two cushion seats (41) are respectively arranged to fit the upper surface and the lower surface of the pump body (1), and each cushion seat (41) is provided with two first slide grooves on a side away from the pump body (1), and two upper sliders (42) are slidably mounted in each of the first slide grooves; two second slide grooves are respectively provided on the surfaces of the upper shell (2) and the lower shell (3) facing the first slide grooves, and two lower sliders (43) are slidably mounted in each of the second slide grooves; the eight upper sliders (42) and the lower sliders (43) are opposite to each other in pairs, and a hydraulic buffer rod (44) is arranged between each group of upper sliders (42) and lower sliders (43), and the two ends of each hydraulic buffer rod (44) are respectively fixedly connected to the surfaces of the upper slider (42) and the lower slider (43); the outer wall of each hydraulic buffer rod (44) is sleeved with a first spring (45), and the two ends of each first spring (45) are respectively fixedly connected to the surfaces of the upper slider (42) and the lower slider (43).

3. A high-efficiency and energy-saving double-suction pump according to claim 2, characterized in that: A connecting rod (46) is provided between the two upper sliders (42) and the two lower sliders (43) sliding in the same first slide groove and the second slide groove. The two ends of the connecting rod (46) are rotatably connected to the obliquely corresponding upper slider (42) and the lower slider (43), and the two connecting rods (46) in the same group are rotatably connected at the middle of the intersection.

4. The high-efficiency and energy-saving double-suction pump according to claim 1 is characterized in that: The pump port buffer mechanism (5) comprises a pump port clamping block (51), the side wall of the pump port clamping block (51) near the water inlet of the pump body (1) is a semicircular arc surface, and two pump port clamping blocks (51) close to each other are used together to clamp the water inlet and the water outlet of the pump body (1), and two transverse slide blocks (54) are fixed on the side wall of each pump port clamping block (51) close to the upper shell (2) or the lower shell (3), and a third slide groove is opened on the side wall of the upper shell (2) and the lower shell (3) close to the transverse slide block (54), and the two transverse slide blocks (54) in the same group are slidably installed in the same third slide groove.

5. The high-efficiency and energy-saving double-suction pump according to claim 4 is characterized in that: A telescopic rod (52) is arranged between each of the transverse sliders (54) and the side wall of the third slide groove, and two ends of the telescopic rod (52) are respectively fixedly connected to the transverse slider (54) and the side wall of the third slide groove, and a second spring (53) is sleeved on the outer wall of the telescopic rod (52), and two ends of the second spring (53) are respectively fixedly connected to the transverse slider (54) and the side wall of the third slide groove.

6. The high-efficiency and energy-saving double-suction pump according to claim 4, characterized in that: A push handle (21) is fixed on the side wall of the upper shell (2), four universal wheels (32) are rotatably mounted on the lower surface of the lower shell (3), and the upper shell (2), the lower shell (3) and the pump port block (51) are all made of sound insulation material.

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