Double-motor connecting structure

Abstract

The utility model relates to a double-motor connecting structure, which comprises a first motor pump and a second motor pump, a mounting ring is sleeved at a water outlet of the first motor pump, and a connecting cover is arranged at one end of the mounting ring. The utility model relates to the technical field of motor pump connecting structures. According to the dual-motor connecting structure, when the motors work, a first motor pump pumps liquid into a cavity formed by a connecting cover and an accelerating cavity, at the moment, the pressure in the cavity is increased, a sealing push block is pushed through the pressure to move in a sliding cavity, and negative pressure is generated at the position, communicated with an arc-shaped through groove, in the sliding cavity; and the larger the power of the first motor pump is, the larger the pressure generated in the cavity is, so that the smaller the pressure in the sliding cavity and the arc-shaped through groove is, and then the pressure of the mounting ring and the water outlet support is increased through the water pressure, so that the connecting tightness of the mounting ring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor pump connection structures, in particular to a dual-motor connection structure. Background Art

[0002] The dual motor connection structure usually includes two independent motor pumps, which are connected by a suitable connection mechanism. This design allows the two motor pumps to work independently or run simultaneously when needed to provide a higher flow or pressure.

[0003] In the prior art, two motor pumps are generally connected to each other through a flange or a cover, and the cover is tightened by a clamp to achieve the effect of connecting the two motor pumps. However, the installation efficiency of these two installation methods is not high. When a clamping ring is used to connect the cover and the motor pump, uneven pressure is likely to occur. When the motor pump vibrates during use, the clamp is easily broken, resulting in a loose connection structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a dual-motor connection structure so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A dual-motor connection structure includes a first motor pump and a second motor pump, wherein a mounting ring is sleeved at the drain port of the first motor pump, a connecting cover is arranged at one end of the mounting ring, the connecting cover is communicated with an acceleration chamber of the second motor pump, a sliding chamber is provided inside the ring wall of the mounting ring, a sealing push block is arranged inside the sliding chamber, an arc-shaped through groove is provided on the chamber wall of the sliding chamber close to the axis line of the mounting ring, a positioning groove is provided at one end of the connecting cover away from the mounting ring, and an arc-shaped sheet is provided on the inner wall of the connecting cover at a position corresponding to the positioning groove.

[0007] Furthermore, a guide tube is fixedly connected to the inner ring of the mounting ring, the guide tube is inserted into the interior of the drain outlet, and the end side of the inner tube wall of the guide tube is arranged in an arc shape.

[0008] Furthermore, the sealing push block includes a sealing ring located inside the sliding cavity, and a plurality of connecting plates are arranged on one side of the sealing ring. The connecting plates penetrate the mounting ring and extend into the interior of the connecting cover. One end of the connecting plate located inside the connecting cover is commonly connected to a sealing plate, and the sealing plate is fixedly connected to the inner wall of the connecting cover.

[0009] Furthermore, the sealing plate is annular, and both the inner peripheral side and the outer peripheral side are sealed and fixedly connected to the inner wall of the connecting cover, and the plate surface of the sealing plate is arc-shaped.

[0010] In summary, the present invention includes at least one of the following beneficial technical effects:

[0011] 1. In this dual-motor connection structure, when the motor is working, the first motor pump pumps the liquid into the cavity formed by the connection cover and the acceleration cavity. At this time, the pressure inside the cavity will increase, and the sealing push block will be pushed to move inside the sliding cavity by the pressure, so that the position where the sliding cavity is connected to the arc-shaped through groove will generate negative pressure, and then the mounting ring will be adsorbed at the drain port of the first motor pump. The greater the power of the first motor pump, the greater the pressure generated in the cavity, so the pressure inside the sliding cavity and the arc-shaped through groove is smaller, and then the pressure between the mounting ring and the drain port bracket is increased by water pressure to improve the tightness of the connection of the mounting ring;

[0012] 2. In this dual-motor connection structure, when the pressure inside the cavity increases, the water pressure will push the arc-shaped piece to make it straight. At this time, the gas inside the air chamber formed by the inner side of the arc-shaped piece and the inner wall of the acceleration chamber will be discharged, and the arc-shaped piece will be straightened by the influence of the water pressure. After the water pressure stabilizes, the arc-shaped piece rebounds under the influence of its own elastic force, so that negative pressure is formed in the air chamber, and under the influence of the negative pressure, the arc-shaped piece and the inner wall of the acceleration chamber are pressed against each other, thereby improving the tightness effect;

[0013] 3. In this dual-motor connection structure, when the pressure inside the cavity increases, the plate surface of the sealing plate is set in an arc shape, and when the inner and outer sides of the sealing plate are respectively fixedly connected to the inner wall of the connecting cover, an air cavity is formed on the inner side of the connecting cover, so that when the pressure increases, the sealing plate can be pushed to move, and the air cavity formed by the sealing plate and the connecting cover can effectively reduce the vibration of the water flow when the motor pump pumps out the water, thereby preventing the connection cover from shifting and leaking during the operation of the motor pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 The utility model is a schematic structural diagram of a dual-motor connection structure.

[0016] Figure 2 The utility model is a schematic structural diagram of a mounting ring and a connecting cover of a dual-motor connecting structure.

[0017] Figure 3 It is a schematic diagram of the longitudinal cross-sectional structure of a mounting ring and a connecting cover of a dual-motor connecting structure of the utility model.

[0018] Figure 4 It is a schematic structural diagram of a transverse cross-sectional view of a mounting ring and a connecting cover of a dual-motor connecting structure of the utility model.

[0019] In the figure, 1, first motor pump; 2, second motor pump; 3, drain outlet; 4, mounting ring; 5, connecting cover; 6, acceleration chamber; 7, sliding chamber; 8, sealing push block; 81, sealing ring; 82, connecting plate; 83, sealing plate; 9, arc-shaped through groove; 10, positioning groove; 11, arc-shaped sheet; 12, guide tube. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Example:

[0022] Reference Figure 1-Figure 4 The utility model discloses a dual-motor connection structure, comprising a first motor pump 1 and a second motor pump 2, a mounting ring 4 is sleeved at the drain port 3 of the first motor pump 1, a connecting cover 5 is arranged at one end of the mounting ring 4, the connecting cover 5 is communicated with the acceleration chamber 6 of the second motor pump 2, a sliding chamber 7 is opened inside the ring wall of the mounting ring 4, a sealing push block 8 is arranged inside the sliding chamber 7, an arc-shaped through groove 9 is opened on the cavity wall of the sliding chamber 7 close to the axis line of the mounting ring 4, a positioning groove 10 is opened at one end of the connecting cover 5 away from the mounting ring 4, and an arc-shaped sheet 11 is arranged on the inner wall of the connecting cover 5 corresponding to the positioning groove 10.

[0023] In this embodiment, by sleeve-mounting the mounting ring 4 at the drain port 3 of the first motor pump 1, and sleeve-mounting the connecting cover 5 at the outer side of the accelerating chamber 6 of the second motor pump 2, and the cavity wall of the accelerating chamber 6 is inserted into the interior of the positioning groove 10, and the arc-shaped piece 11 is located at the inner side of the accelerating chamber 6, when the motor is working, the first motor pump 1 pumps the liquid into the cavity formed by the connecting cover 5 and the accelerating chamber 6 ("the cavity formed by the connecting cover 5 and the accelerating chamber 6" is hereinafter collectively referred to as the "cavity"), at which time the pressure inside the cavity will increase, and the sealing push block 8 is pushed by the pressure to move inside the sliding chamber 7, so that the position where the sliding chamber 7 is connected to the arc-shaped through groove 9 generates negative pressure, and then the mounting ring 4 is adsorbed at the drain port 3 of the first motor pump 1, and the greater the power of the first motor pump 1, the greater the pressure generated in the cavity, so the smaller the pressure inside the sliding chamber 7 and the arc-shaped through groove 9, thereby achieving the effect of making the mounting ring 4 tightly connected to the drain port 3;

[0024] When the pressure inside the cavity increases, the water pressure will push the arc-shaped sheet 11 to make it straight. Since the arc-shaped sheet 11 is arc-shaped when not in use, and the arc-shaped setting can well make one end of the arc-shaped sheet 11 contact the side wall of the acceleration chamber 6, at this time, the inner side of the arc-shaped sheet 11 will form an air chamber with the inner wall of the acceleration chamber 6. When the arc-shaped sheet 11 is straightened by the water pressure, the gas in the air chamber is discharged. After the water pressure stabilizes, the arc-shaped sheet 11 rebounds under the influence of its own elastic force, so that negative pressure is formed in the air chamber, and under the influence of the negative pressure, the arc-shaped sheet 11 and the inner wall of the acceleration chamber 6 are closely attached to each other, thereby improving the tightness effect.

[0025] Furthermore, since the connecting cover 5 and the mounting ring 4 are both made of soft rubber, they can well absorb the vibration generated by the operation of the motor pump during use, so as to prevent the vibration from affecting the connectivity between the connecting structure and the two motor pumps.

[0026] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a guide tube 12 is fixedly connected to the inner ring of the mounting ring 4 , the guide tube 12 is inserted into the interior of the drain port 3 , and the end side of the inner tube wall of the guide tube 12 is arc-shaped.

[0027] In this embodiment, the guide tube 12 is provided to further increase the tightness of the connection between the mounting ring 4 and the drain port 3 , thereby improving the stability of the connection between the device and the first motor pump 1 .

[0028] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the sealing push block 8 includes a sealing ring 81 located inside the sliding cavity 7, and a plurality of connecting plates 82 are arranged on one side of the sealing ring 81. The connecting plates 82 penetrate the mounting ring 4 and extend into the interior of the connecting cover 5. One end of the connecting plate 82 located inside the connecting cover 5 is commonly connected with a sealing plate 83, and the sealing plate 83 is fixedly connected to the inner wall of the connecting cover 5.

[0029] In this embodiment, when the internal pressure of the cavity increases with the operation of the motor pump, the sealing plate 83 is pushed by the water pressure, and then the connecting plate 82 is pushed by the sealing plate 83 to make the sealing ring 81 slide inside the sliding cavity 7. At this time, negative pressure will be generated on the side of the sliding cavity 7 close to the connecting cover 5. At the same time, the arc-shaped groove 9 and the cavity wall of the sliding cavity 7 opened here, and then the arc-shaped groove 9 is tightly adsorbed on the surface of the drain port 3 through the setting of negative pressure, thereby achieving the effect of improving the stability of the mounting ring 4. At the same time, the movement of the sealing ring 81 will cause the sliding cavity 7 to generate high pressure at the position away from the side of the pin-connecting cover 5. At this time, the pressure of the sealing ring 81 and the sliding cavity 7 will be increased, further achieving the improvement of the stability of the fixing of the sealing ring 81 and the drain port 3.

[0030] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the sealing plate 83 is annular, and both the inner circumference and the outer circumference are sealed and fixedly connected to the inner wall of the connecting cover 5, and the plate surface of the sealing plate 83 is arc-shaped.

[0031] In the present embodiment, by providing a sealing plate 83 with an arc-shaped plate surface, when the inner and outer sides of the sealing plate 83 are respectively fixedly connected to the inner wall of the connecting cover 5, an air cavity is formed on the inner side of the connecting cover 5, thereby achieving the effect of pushing the sealing plate 83 to move when the pressure increases, and the air cavity formed by the sealing plate 83 and the connecting cover 5 can effectively reduce the vibration of the motor when the motor pump pumps out the water flow, thereby reducing the vibration of the water flow and causing the vibration of the motor, thereby further improving the stability of the connecting structure.

[0032] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dual-motor connection structure, comprising a first motor pump (1) and a second motor pump (2), characterized in that: A mounting ring (4) is sleeved at the drain port (3) of the first motor pump (1), a connecting cover (5) is provided at one end of the mounting ring (4), the connecting cover (5) is connected to the acceleration chamber (6) of the second motor pump (2), a sliding chamber (7) is provided inside the ring wall of the mounting ring (4), a sealing push block (8) is provided inside the sliding chamber (7), an arc-shaped through groove (9) is provided on the chamber wall of the sliding chamber (7) close to the axis of the mounting ring (4), a positioning groove (10) is provided at one end of the connecting cover (5) away from the mounting ring (4), and an arc-shaped sheet (11) is provided on the inner wall of the connecting cover (5) at a position corresponding to the positioning groove (10).

2. A dual-motor connection structure according to claim 1, characterized in that: A guide tube (12) is fixedly connected to the inner ring of the mounting ring (4); the guide tube (12) is inserted into the interior of the drain outlet (3); and the end side of the inner tube wall of the guide tube (12) is arranged in an arc shape.

3. A dual-motor connection structure according to claim 2, characterized in that: The sealing push block (8) includes a sealing ring (81) located inside the sliding cavity (7), and a plurality of connecting plates (82) are provided on one side of the sealing ring (81). The connecting plates (82) penetrate the mounting ring (4) and extend into the interior of the connecting cover (5). One end of the connecting plate (82) located inside the connecting cover (5) is connected to a sealing plate (83), and the sealing plate (83) is fixedly connected to the inner wall of the connecting cover (5).

4. A dual-motor connection structure according to claim 3, characterized in that: The sealing plate (83) is annular, and both the inner peripheral side and the outer peripheral side are sealed and fixedly connected to the inner wall of the connecting cover (5), and the plate surface of the sealing plate (83) is arc-shaped.

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