A heating pump

Abstract

The application relates to a heating pump applied to the technical field of pumps, which comprises a pump shell, a flange plate, a buckle unit and a heating pipe, the heating pipe is arranged in the pump shell, the pump shell and the flange plate are connected through the buckle unit, the buckle unit comprises first clamping components and second clamping components; during production detection, an operator connects the first clamping components, so that the pump body and the flange plate are in a first clamping state, the pump is convenient to disassemble and assemble for subsequent detection by an operator; when the pump detection is completed and the finished product meets the requirements, the pump body and the flange plate are locked and fixed through the second clamping components, so that the reinforcing effect is achieved. Through the second clamping components, the pump after detection is reinforced for the second time, damage of the first clamping components caused by repeated buckling during the detection process is avoided, the problem that the product performance is affected is solved, the tightness between the pump body and the flange plate is improved, and the sealing performance of the pump is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pumps, in particular to a heating pump. BACKGROUND

[0002] A pump is a device that transports liquid or gas by pressure difference generated by mechanical movement, and is widely used in water conservancy projects, urban water supply and heating and ventilation systems.

[0003] The pump in the prior art comprises a pump shell and a flange plate, the pump shell and the flange plate are connected through buckling, a liquid inlet pipe of the pump is installed on the flange plate, and the flange plate is used for sealing an opening of the pump shell, the buckling comprises a clamping block arranged on the pump shell, a clamping groove matched with the clamping block is arranged on the flange plate, and an operator assembles the pump by clamping the clamping block in the clamping groove to realize buckling connection of the pump shell and the flange plate.

[0004] The pump adopts the one-time buckling connection mode of the buckling and the clamping groove, so that when the operator assembles the pump shell and the flange plate and needs to detect the pump shell, if the pump shell is abnormal and needs to be reassembled, the buckling needs to be repeatedly buckled, and the repeated buckling process is easy to cause wear of the clamping block and the clamping groove or cause loose cooperation between them, thereby causing unstable connection of the pump shell and the flange plate during use and affecting the sealing effect of the pump. SUMMARY

[0005] In order to help solve the problems in the related art, the present application provides a heating pump, which adopts the following technical scheme: comprising a pump shell, a flange plate, a buckling unit and a heating pipe, the heating pipe is arranged in the pump shell, the pump shell and the flange plate are connected through the buckling unit, the buckling unit comprises a first clamping assembly and a second clamping assembly,

[0006] When the pump shell and the flange plate are connected through the first clamping assembly, the pump shell and the flange plate are in a first clamping state;

[0007] When the pump shell and the flange plate are connected through the first clamping assembly and the second clamping assembly in turn, the pump shell and the flange plate are in a second clamping state.

[0008] In a specific embodiment, the first clamping assembly comprises a first clamping part and a first clamping block matched with the first clamping part, one of the pump shell or the flange plate is provided with the first clamping part, and the other is provided with the first clamping block;

[0009] The second clamping assembly comprises a second clamping part and a second clamping block matched with the second clamping part, one of the pump shell or the flange plate is provided with the second clamping part, and the other is provided with the second clamping block.

[0010] In one specific implementation, the second clamping part includes at least one first limiting block arranged on the pump shell or the flange plate, and the second clamping block includes a limiting plate arranged on the other; when the pump shell and the flange plate are in the second clamping state, the first limiting block abuts against the limiting plate.

[0011] In one specific implementation, the first clamping block and the second clamping block are integrally arranged as a clamping assembly; the clamping assembly includes a first clamping block arranged on one of the pump shell or the flange plate, and the second clamping part includes a second clamping block arranged on the other; when the pump shell and the flange plate are in the second clamping state, the first clamping block abuts against the second clamping block.

[0012] In one specific implementation, the flange plate is provided with an inlet pipe, the pump shell is provided with an outlet pipe, the pump shell is provided with an impeller and a guide cover, the outlet end of the inlet pipe is communicated with the guide cover, a guide cavity communicated with the outlet pipe is arranged between the guide cover and the pump shell, the impeller is arranged in the guide cavity, the guide cover is provided with a first guide part and a second guide part, and the second guide part is arranged between the first guide part and the outlet pipe.

[0013] The first guide part includes a first inclined part inclined toward the inlet pipe and a second inclined part inclined away from the inlet pipe; and a blocking part arranged toward the inlet pipe is arranged between the first inclined part and the second inclined part.

[0014] In one specific implementation, the second guide part is provided with an impact plate at one end away from the first guide part, and the impact plate is located on the side of the inlet end of the outlet pipe away from the first guide part.

[0015] The pump shell is provided with a limiting part on the side of the inlet end of the outlet pipe away from the first guide part, and the limiting part abuts against the impact plate.

[0016] In one specific implementation, the guide cover is provided with a liquid passing hole at the second guide part, the pump shell is internally formed with two cavities, the two cavities are a guide cavity located on the side of the guide cover close to the impeller and a liquid storage cavity located on the side of the guide cover away from the impeller, the liquid passing hole penetrates through the guide cavity and the liquid storage cavity, and the bottom of the liquid storage cavity is lower than the highest position of the inner wall of the outlet pipe.

[0017] In one specific implementation, the flange is provided with a pipeline mounting port, the liquid inlet pipe is arranged on the pipeline mounting port, the axis of the pipeline mounting port is arranged in a staggered manner with the axis of the impeller, the impeller is coaxially arranged with the flow guide cover, and the flow guide cover is connected in communication with the eccentric portion liquid inlet pipe.

[0018] In one specific implementation, the pump shell comprises a motor shell, a first pump shell and a second pump shell, the first pump shell is arranged between the motor shell and the second pump shell, and the motor shell, the first pump shell and the second pump shell are arranged in an integrated manner.

[0019] Based on the detection method of the heating pump, the detection step comprises:

[0020] After the pump shell and the flange are assembled, the first clamping assembly is connected, so that the pump shell and the flange are in a first clamping state;

[0021] If the heating pump is normal, the pump shell and the flange are locked and fixed by the second clamping assembly, so that the pump shell and the flange are in a second clamping state; if the heating pump is abnormal, the first clamping assembly is disconnected, and the heating pump is disassembled.

[0022] In summary, the present application has the following beneficial technical effects: During production detection, the operator connects the first clamping assembly, so that the pump body and the flange are in a first clamping state, and the pump body and the flange are preliminarily connected at this time. When the pump needs to be detected, the subsequent operator can easily disassemble and assemble the pump for detection; after the pump detection is completed and meets the product requirements, the pump body and the flange are locked and fixed by the second clamping assembly, which plays a reinforcing role. Compared with the single-direction limiting connection mode between the pump body and the flange in the related art, the present application reduces the generation of axial tripping and the possibility of loosening or unstable connection of the pump body and the flange during use by using the double limiting of the first clamping assembly and the second clamping assembly. The single-direction one-time clamping design in the prior art is prone to breakage or damage during assembly and disassembly. By adding the second clamping assembly, the pump after detection is reinforced twice, avoiding damage to the first clamping assembly during detection, affecting the performance of the product, improving the tightness of the cooperation between the pump body and the flange, and improving the sealing performance of the pump.

[0023] When assembled, the flow guide cover is placed at the liquid outlet end of the liquid inlet pipe, at this time the impeller of the pump body is placed below the flow guide cover, the upper part of the first flow guide part and the second flow guide part forms a flow guide channel, that is, the flow guide channel is in communication with the flow guide cavity, and one end of the flow guide channel is in communication with the liquid inlet end of the liquid outlet pipe; when the impeller rotates, liquid enters the flow guide cavity from the liquid inlet pipe, the liquid passes through the flow guide channel and is guided to the liquid inlet end of the liquid outlet pipe, reducing the loss of kinetic energy during the flow of the liquid, thereby increasing the flow rate and lift of the liquid;

[0024] During installation of the pump, due to the misalignment of the axis of the flange plate and the axis of the impeller, the width of the flange plate at different angles around the liquid inlet pipe is different, that is, the area of the flange plate on one side of the liquid inlet pipe is larger, and the area of the flange plate on the other side is smaller, the side with a larger area is convenient for assembling other components, so that there is a large enough area to reasonably install other components without increasing the overall radial size of the top surface of the upper pump shell, meeting the installation requirements in a small space.

[0025] The integral one-piece design eliminates the connection points between the motor shell, the first pump shell and the second pump shell, reduces the possibility of water leakage at the connection under the action of long-term fluid pressure, motor vibration and the like of the pump body, and at the same time reduces the setting of the sealing surface, improves the structural strength and sealing performance of the pump body. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present application.

[0027] Figure 2 is Figure 1 is an enlarged schematic view of position A in

[0028] Figure 3 is a schematic diagram of the structure in the present application for embodying the second clamping state.

[0029] Figure 4 is Figure 3 is an enlarged schematic view of position B in

[0030] Figure 5 is a schematic diagram of the distribution of the clasp unit in the present application;

[0031] Figure 6 is a schematic diagram of the structure inside the pump shell in the present application;

[0032] Figure 7 is a schematic diagram of the structure of the flow guide cover in the present application;

[0033] Figure 8 is a schematic diagram of the structure of the flow guide cover in the present application from another perspective;

[0034] Figure 9 is a schematic diagram of the structure of the present application;

[0035] Figure 10 is a structural explosion schematic diagram of the present application;

[0036] Figure 11 is a structural schematic diagram of the flange plate in the present application;

[0037] Figure 12 is a structural schematic diagram of the eccentric part in the present application;

[0038] Figure 13 is a structural cross-sectional schematic diagram of the eccentric part in the present application.

[0039] The figure mark: 1, pump shell; 2, flange plate; 3, limiting plate; 4, first limiting block; 5, flow guide cavity; 6, liquid inlet pipe; 7, liquid outlet pipe; 8, impeller; 9, flow guide cover; 10, first flow guide part; 11, second flow guide part; 12, first inclined part; 13, second inclined part; 14, blocking part; 15, impact plate; 16, liquid passing hole; 17, liquid storage cavity; 18, second limiting block; 19, limiting part; 20, flow guide groove; 21, bearing part; 22, first connecting part; 23, second connecting part; 24, abutting plate; 25, abutting surface; 26, positioning surface; 27, ring groove; 28, annular interface; 29, third flow guide part; 30, fourth flow guide part; 31, motor shell; 32, first pump shell; 33, second pump shell; 34, first limiting hole; 35, guide part; 36, heating pipe; 37, placing groove; 38, pipeline mounting port. DETAILED DESCRIPTION

[0040] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0041] It should be noted that the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment containing a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0042] The following will be described in detail in conjunction with the drawings Figures 1-13 The present application will be further described in detail.

[0043] Reference will be made to Figure 1The embodiment of the present application discloses a heating pump, comprising a pump shell 1, a flange plate 2, a buckle unit and a heating pipe 36, the heating pipe 36 is arranged in the pump shell 1, the pump shell 1 and the flange plate 2 are connected through the buckle unit, the buckle unit comprises a first clamping assembly and a second clamping assembly, when the pump shell 1 and the flange plate 2 are connected through the first clamping assembly, the pump shell 1 and the flange plate 2 are in a first clamping state, when the pump shell 1 and the flange plate 2 are connected through the first clamping assembly and the second clamping assembly in sequence, the pump shell 1 and the flange plate 2 are in a second clamping state.

[0044] With reference to Figures 1-2 The first clamping assembly comprises a first clamping part and a first clamping block matched with the first clamping part, one of the pump shell 1 or the flange plate 2 is provided with the first clamping part, and the other is provided with the first clamping block, in the embodiment of the present application, the first clamping part is arranged on the flange plate 2, and the first clamping block is arranged on the pump shell 1, the second clamping assembly comprises a second clamping part and a second clamping block matched with the second clamping part, one of the pump shell 1 or the flange plate 2 is provided with the second clamping part, and the other is provided with the second clamping block, in the embodiment of the present application, the second clamping part is arranged on the flange plate 2, and the second clamping block is arranged on the pump shell 1, when the pump shell 1 and the flange plate 2 are in the first clamping state, the first clamping part and the first clamping block abut, when the pump shell 1 and the flange plate 2 are in the second clamping state, the second clamping part and the second clamping block abut.

[0045] Therefore, the operator connects the first clamping assembly, the first clamping part and the first clamping block abut, so that the pump shell 1 and the flange plate 2 are in the first clamping state, at this time, the pump shell 1 and the flange plate 2 are preliminarily connected, when it is necessary to detect the pump shell 1, it is convenient for the subsequent operator to detect the pump by reassembling and disassembling, when the pump detection is completed and the pump shell 1 and the flange plate 2 need to be locked and assembled, the operator preliminarily connects the pump shell 1 and the flange plate 2 through the first clamping assembly, then the operator opens the second clamping part towards the second clamping block, so that the second clamping part and the second clamping block abut, realizing the locking and fixing of the pump shell 1 and the flange plate 2.

[0046] With reference to Figure 2 And Figure 3In the embodiment of the application, the first clamping part can be a slot or a hole, and the hole is taken as an example for description in the first embodiment of the application. The second clamping part includes at least one first limiting block 4 arranged on the pump shell 1 or the flange plate 2, and the second clamping block includes at least one limiting plate 3 arranged on the other. In the embodiment of the application, the number of the first limiting blocks 4 is set to two, and both of the first limiting blocks 4 are arranged on the flange plate 2. The number of the limiting plates 3 is set to two, and both of the limiting plates 3 are arranged on the pump shell 1. The first clamping part includes a first limiting hole 34 arranged on the flange plate 2. The first clamping block includes a second limiting block 18 arranged on the pump shell 1. The two limiting plates 3 are located on the two sides of the second limiting block 18. The second limiting block 18 penetrates through the first limiting hole 34. In the embodiment of the application, a guide inclined surface is arranged on the second limiting block 18. The guide inclined surface plays a guiding role, and facilitates smooth insertion of the second limiting block 18 into the first limiting hole 34. When the pump shell 1 and the flange plate 2 are in the second clamping state, the two limiting plates 3 respectively abut against the first limiting blocks 4. In the embodiment of the application, the clamping direction of the first clamping assembly is the same as the axial direction of the pump shell 1. Specifically, when the second limiting block 18 penetrates through the first limiting hole 34, the direction during the clamping process between the second limiting block 18 and the first limiting hole 34 is the axial direction of the pump shell 1.

[0047] With reference to Figure 2 And Figure 3 In the embodiment of the application, the flange plate 2 and the first limiting block 4 on the flange plate 2 are made of stainless steel material. The stainless steel material has high strength and durability, and has certain deformation ability.

[0048] With reference to Figure 3 And Figure 4 One end of the limiting plate 3 towards the first limiting block 4 is fixedly connected with a first abutting plate 24. When the pump shell 1 and the flange plate 2 are in the second clamping state, the limiting block and the first abutting plate 24 can abut against each other. In view of the actual assembly tolerance on site, a certain gap can also be considered. Therefore, the first abutting plate 24 increases the abutting area between the limiting plate 3 and the limiting block, improves the stability during the clamping process of the second clamping assembly, and further improves the stability of the connection between the pump shell 1 and the flange plate 2. According to the actual situation, a reinforcing plate can be arranged on the pump shell 1 and / or the second clamping block. In the embodiment of the application, the reinforcing plate is fixedly connected to the limiting plate 3, and the reinforcing plate is located at the end of the limiting plate 3 towards the flange plate 2. The reinforcing plate enhances the structural rigidity of the limiting plate 3 and improves the structural stability of the limiting plate 3.

[0049] With reference to Figure 5 When the number of the clamping units is set to four, the connecting line between the clamping units located at two opposite positions is not perpendicular. With reference to the attached Figure 6The connecting lines between the buckle units in the two opposite positions are L1 and L2 respectively, and L1 and L2 intersect to form an obtuse angle β and an acute angle a. In the related art, the buckle units are uniformly distributed along the circumference of the flange plate 2, that is, the connecting lines between the buckle units in the two opposite positions are perpendicular to each other. This setting mode will further increase the size of the flange plate 2 in diameter due to the additional protruding space of the outer edge of the buckle unit. Since the connecting lines between the buckle units in the two opposite positions in the embodiment of the application are not perpendicular, the traditional symmetry constraint is broken through the non-perpendicular layout, the area occupied by the diameter of the flange plate 2 is reduced, and the use demand in a small space is met.

[0050] The implementation principle of the embodiment one of the application is that the operator inserts the second limiting block 18 into the first limiting hole 34 to make the pump shell 1 and the flange plate 2 in the first clamping state, so that the pump shell 1 and the flange plate 2 are preliminarily connected. When the pump shell 1 needs to be detected, the pump can be reassembled for subsequent detection by the operator. When the pump detection is completed and the pump shell 1 and the flange plate 2 need to be locked and assembled, the operator first inserts the second limiting block 18 into the first limiting hole 34 to preliminarily connect the pump shell 1 and the flange plate 2, and then the operator pries the two first limiting blocks 4 outward, that is, pries the first limiting blocks 4 outward in the direction of the limiting plate 3, so that the two limiting plates 3 are respectively in abutment with the first limiting blocks 4, and the pump shell 1 and the flange plate 2 are locked and fixed.

[0051] Compared with the single-direction limiting connection mode between the pump shell 1 and the flange plate 2 in the related art, the double limiting of the first clamping assembly and the second clamping assembly is used to reduce the generation of axial tripping and the possibility of loosening or unstable connection of the pump shell 1 and the flange plate 2. The one-time buckle design in the prior art is prone to breakage or damage during assembly and disassembly, and the repeated buckling process is prone to wear of the clamping block and the clamping groove in the prior art, resulting in unstable connection between the pump shell 1 and the flange plate 2. In the embodiment of the application, the second clamping assembly is added, so that even if the first clamping assembly is worn during use, the second clamping assembly can provide axial limiting between the flange plate 2 and the pump shell 1, reduce the possibility that the repeated buckling during detection causes wear of the buckle in the prior art, improve the tightness between the pump shell 1 and the flange plate 2, and improve the sealing performance of the pump.

[0052] Embodiment two

[0053] The difference between the second embodiment of the present application and the first embodiment is that the first clamping block and the second clamping block are integrally arranged as a clamping assembly, that is, the first clamping block and the second clamping block are actually arranged as one component by integral molding. The clamping assembly includes a first clamping block arranged on one of the pump shell 1 or the flange plate 2, and a second clamping part including a second clamping block arranged on the other. In the second embodiment of the present application, the first clamping block is arranged on the pump shell 1, and the second clamping part is arranged on the flange plate 2. When the pump shell 1 and the flange plate 2 are in the second clamping state, the first clamping block and the second clamping block abut each other.

[0054] The implementation principle of the second embodiment of the present application is that the operator inserts the first clamping block into the first clamping part to preliminarily connect the pump shell 1 and the flange plate 2. When the pump shell 1 needs to be detected, the pump is reassembled for subsequent detection by the operator. When the pump detection is completed and the pump shell 1 and the flange plate 2 need to be locked and assembled, the operator inserts the first clamping block into the first clamping part to preliminarily connect the pump shell 1 and the flange plate 2, and then the operator further pries the second clamping block inward, that is, pries the second clamping block toward the first clamping block, so that the second clamping block abuts the first clamping block, thereby achieving the locking and fixing of the pump shell 1 and the flange plate 2. Therefore, the integrated arrangement of the first clamping block and the second clamping block makes the structure more simple and compact, further saves the use space, and the combined component design can reduce the mold development. The integrated arrangement can remove unnecessary materials through optimization, reduce the use of redundant materials, and reduce the production cost.

[0055] Embodiment three

[0056] The difference between the third embodiment of the present application and the first embodiment is that when the flange plate 2 is provided with a second clamping part on one side, the clamping direction of the first clamping assembly in the third embodiment of the present application is different from the axial direction of the pump shell 1. At this time, the size of the second limiting block 18 is smaller than the size of the first limiting hole 34, thereby reserving a assembly gap. That is, the operator can assemble in the first rotating mode. Specifically, the flange plate 2 is placed on the top of the pump shell 1, and then the flange plate 2 is rotated, so that the second limiting block 18 is inserted into the first limiting hole 34. At this time, the direction between the second limiting block 18 and the first limiting hole 34 during the clamping process is along the circumferential direction of the pump shell 1. Then the operator pries the two first limiting blocks 4 outward, that is, pries the first limiting blocks 4 toward the direction of the limiting plate 3, so that the two limiting plates 3 abut the first limiting blocks 4 respectively, thereby achieving the locking and fixing of the pump shell 1 and the flange plate 2. This facilitates the operator to assemble the flange plate 2 and the pump shell 1 in the case of insufficient axial space, and improves the flexibility of the assembly mode.

[0057] Embodiment four

[0058] Reference Figures 6-9The flange 2 is provided with a liquid inlet pipe 6, the pump shell 1 is provided with a liquid outlet pipe 7, the pump shell 1 is provided with an impeller 8 and a flow guide cover 9, the liquid outlet end of the liquid inlet pipe 6 is communicated with the flow guide cover 9, the flow guide cover 9 and the pump shell 1 are provided with a flow guide cavity 5 communicated with the liquid outlet pipe 7, the impeller 8 is arranged in the flow guide cavity 5, the flow guide cover 9 is provided with a first flow guide part 10 and a second flow guide part 11, the second flow guide part 11 is arranged between the first flow guide part 10 and the liquid outlet pipe 7; during assembly, the flow guide cover 9 is arranged at the liquid outlet end of the liquid inlet pipe 6, at this time, the impeller 8 of the pump body is arranged below the flow guide cover 9 (below refers to the direction of the flow guide cavity 5 relative to the liquid inlet pipe 6), the upper part (the upper part refers to the direction of the liquid inlet pipe 6 relative to the flow guide cavity 5) of the first flow guide part 10 and the second flow guide part 11 is a flow guide channel, that is, the flow guide channel is communicated with the flow guide cavity 5, and one end of the flow guide channel is communicated with the liquid inlet end of the liquid outlet pipe 7; when the impeller 8 rotates, the liquid enters the flow guide cavity 5 from the liquid inlet pipe 6, the liquid passes through the flow guide channel and is guided to the liquid inlet end of the liquid outlet pipe 7, so that the kinetic energy loss of the liquid in the flow process is reduced, and the liquid flow rate and lift are increased.

[0059] With reference to Figures 6-8 The first flow guide part 10 and the second flow guide part 11 extend around the liquid inlet pipe 6 in sequence, that is, the flow guide channel is in the shape of an arc, and one end of the flow guide channel away from the liquid outlet pipe 7 and one side of the flow guide channel close to the liquid outlet end of the liquid inlet pipe 6 are communicated with the flow guide cavity 5, so that the flow of the liquid in the flow guide cavity 5 into the flow guide channel is increased, the first flow guide part 10 comprises a first inclined part 12 inclined towards the liquid inlet pipe 6 and a second inclined part 13 inclined away from the liquid inlet pipe 6, and a blocking part 14 is arranged between the first inclined part 12 and the second inclined part 13 and faces the liquid inlet pipe 6, and the blocking part 14 is arranged at a position on the outer side of the flow guide channel in the circumferential direction, and the highest point of the blocking part 14 is located on the outer side of the first flow guide part 10 in the circumferential direction, that is, the first inclined part 12 and the second inclined part 13 extend downward from the highest point to other positions of the first flow guide part 10, so that the liquid in the flow guide cavity 5 enters the flow guide channel, passes through the special shape formed by the first inclined part 12, the second inclined part 13 and the blocking part 14, and the kinetic energy loss of the liquid is reduced, and the liquid is guided to the liquid inlet of the liquid outlet pipe 7, so that the liquid flow rate and lift are further improved.

[0060] With reference to Figure 6 The second flow guide part 11 is not lower than the inner wall of the liquid outlet pipe 7, so that no upward step is formed between the second flow guide part 11 and the liquid outlet pipe 7, and when the liquid enters the liquid outlet pipe 7 from the flow guide channel, the liquid cannot directly enter the liquid outlet pipe 7 due to the existence of the step.

[0061] With reference to Figures 6-8In order to make the liquid at the flow guide passage enter the liquid outlet pipe 7 as much as possible, the second flow guide part 11 is provided with an impact plate 15 at the end away from the first flow guide part 10, the impact plate 15 is located at the side of the liquid inlet end of the liquid outlet pipe 7 away from the first flow guide part 10, when the liquid passes through the liquid inlet end of the liquid outlet pipe 7 and reaches the impact plate 15, the liquid is blocked by the impact plate 15 and flows back into the liquid outlet pipe 7; in combination with the impact plate 15, the pump shell 1 is provided with a limiting part 19 at the side of the liquid inlet end of the liquid outlet pipe 7 away from the first flow guide part 10, the limiting part 19 abuts against the impact plate 15, so that when the flow guide cover 9 is installed, the impact plate 15 is abutted against the limiting part 19, the installation position of the flow guide cover 9 is positioned, and the convenience of installation is improved.

[0062] Referring to Figures 6-8 The flow guide cover 9 is provided with a liquid passing hole 16 at the second flow guide part 11, two cavities are formed in the pump shell 1, the two cavities are a flow guide cavity 5 located at the bottom of the flow guide cover 9 (the side close to the impeller 8) and a liquid storage cavity 17 located at the top of the flow guide cover 9 (the side away from the impeller 8), the liquid passing hole 16 penetrates the flow guide cavity 5 and the liquid storage cavity 17, the bottom of the liquid storage cavity 17 is lower than the height of the highest position of the inner wall of the liquid outlet pipe 7, and the heating pipe 36 is arranged in the liquid storage cavity 17, that is, the flow guide cover 9 divides the cavity in the pump shell 1 into two cavities (the liquid storage cavity 17 and the flow guide cavity 5) from top to bottom, after the liquid passes through the flow guide passage, the liquid that does not enter the liquid outlet pipe 7 will pass through the liquid passing hole 16 and enter the liquid storage cavity 17 (the liquid entering the liquid storage cavity 17 is guided by the flow guide passage, accelerates to enter the liquid storage cavity 17, and forms a vortex in the liquid storage cavity 17); and the flow guide cover 9 is provided with a flow guide groove 20, the flow guide groove 20 is arranged at the end of the second flow guide part 11 away from the first flow guide part 10, the end of the flow guide groove 20 close to the second flow guide part 11 is located at the side of the impact plate 15, and the flow guide groove 20 extends spirally from the end of the second flow guide part 11 away from the first flow guide part 10 to the side of the liquid storage cavity 17, so that the liquid reaching the end of the second flow guide part 11 (the end away from the first flow guide part 10) partially enters the liquid outlet pipe 7 through the impact plate 15, and the other part enters the flow guide groove 20, due to the spiral extension of the flow guide groove 20 and the gradually decreasing width and depth of the flow guide groove 20 from the end of the second flow guide part 11, the liquid passing through the flow guide groove 20 is accelerated to flow to the liquid storage cavity 17, the liquid forms a vortex in the liquid storage cavity 17, and the bottom of the liquid storage cavity 17 is lower than the height of the highest position of the liquid inlet of the liquid outlet pipe 7, after the liquid moves in the liquid storage cavity 17, part of the liquid will enter the liquid outlet pipe 7, further improving the rate of liquid entering the liquid outlet pipe 7; and the heating pipe 36 is arranged in the liquid storage cavity 17 to heat the liquid in the liquid storage cavity 17 and the flow guide cavity 5.

[0063] Example five

[0064] Referring to Figures 10-13The flange plate 2 is provided with a pipeline mounting port 38, the liquid inlet pipe 6 is arranged on the pipeline mounting port 38, the axis of the pipeline mounting port 38 is arranged in a staggered manner with the axis of the impeller 8, the impeller 8 is coaxially arranged with the flow guide cover 9, the flow guide cover 9 is communicated with the liquid inlet pipe 6 through the eccentric part, and the axis of the flange plate 2 coincides with the axis of the impeller 8; since the liquid outlet end (the pipeline mounting port 38) of the liquid inlet pipe 6 is different in axis from the liquid inlet end of the flow guide cover 9, the eccentric part specifically comprises a receiving part 21, a first connecting part 22 and a second connecting part 23, the first connecting part 22 and the second connecting part 23 are arranged at two ends of the receiving part 21 respectively, the first connecting part 22 is connected with the liquid inlet pipe 6, the second connecting part 23 is connected with the flow guide cover 9, the first connecting part 22 and the second connecting part 23 at two ends of the receiving part 21 are connected with the liquid inlet pipe 6 and the flow guide cover 9 respectively, and the liquid inlet pipe 6 and the flow guide cover 9 are communicated.

[0065] As shown in Figure 12 and Figure 13 , the first connecting part 22 is provided with a first through hole, the first through hole is communicated with the liquid inlet pipe 6, and the axis of the first through hole coincides with the axis of the flange plate 2; the first connecting part 22 is communicated with the liquid inlet pipe 6 by arranging the first through hole communicated with the liquid inlet pipe 6 in the first connecting part 22, and the end of the first connecting part 22 away from the receiving part 21 is provided with a guide part 35, the guide part 35 is in the shape of a hollow truncated cone, so that the first connecting part 22 can be easily inserted into the liquid inlet pipe 6, and in order to facilitate confirmation of the insertion of the first connecting part 22 and the liquid inlet pipe 6, the receiving part 21 is provided with an abutting surface 25 facing the side of the liquid inlet pipe 6, when the end of the liquid inlet pipe 6 abuts on the abutting surface 25, it is inserted in place, and the connection is completed.

[0066] As shown in Figure 12 and Figure 13 , the second connecting part 23 is provided with a second through hole, the second through hole is communicated with the flow guide cover 9, the axis of the second through hole is arranged in a staggered manner with the axis of the first through hole, and the axis of the second through hole coincides with the axis of the impeller 2; the second connecting part 23 is communicated with the flow guide cover 9 by arranging the second through hole communicated with the liquid inlet pipe 6 in the second connecting part 23; and the end of the second connecting part 23 away from the first connecting part 22 is provided with a positioning surface 26 facing the flow guide cover 9, when the first connecting part 22 is connected with the flow guide cover 9, when the interface of the flow guide cover 9 reaches the positioning surface 26, it is connected in place; and the end of the second connecting part 23 away from the first connecting part 22 is provided with a ring groove 27, the flow guide cover 9 is provided with a ring-shaped interface 28 matched with the ring groove 27, and the positioning surface 26 is located in the ring groove 27, so that when the flow guide cover 9 is connected, the ring-shaped interface 28 on the flow guide cover 9 is inserted into the ring groove 27, when the ring-shaped interface 28 abuts on the positioning surface 26, the second connecting part 23 is connected with the flow guide cover 9, and the connection is completed.

[0067] As shown in Figure 13As shown, in order to facilitate the smooth flow of liquid through the eccentric part, the first through hole is provided with a third flow guide part 29 near the side of the second through hole, the third flow guide part 29 can be a first arc-shaped guide surface extending from the first through hole wall to the second through hole opening, the second through hole is provided with a fourth flow guide part 30 near the side of the first through hole, the fourth flow guide part can be a second arc-shaped guide surface extending from the second through hole wall to the first through hole opening, wherein the third flow guide part 29 and the fourth flow guide part 30 are oppositely arranged, so that the first through hole and the second through hole are transitioned through the arc-shaped part, the effective area of the through hole liquid passing through is increased, the flow area is increased, and the flow resistance is reduced.

[0068] Embodiment six

[0069] With reference to Figure 1 And Figure 10 The pump shell 1 includes a motor shell 31, a first pump shell 32, and a second pump shell 33. The first pump shell 32 is arranged between the motor shell 31 and the second pump shell 33. The diameter of the second pump shell 33 is greater than that of the first pump shell 32, and the second pump shell 33 and the first pump shell 32 are arranged eccentrically. The motor shell 31, the first pump shell 32, and the second pump shell 33 are integrally arranged. The second pump shell 33 is connected with a flange plate 2 through a buckle unit. An inlet pipe 6 is arranged on the flange plate 2. The flange plate 2 is used for sealing the opening of the second pump shell 33. In the embodiment of the present application, a reinforcing rib is arranged between the first pump shell 32 and the motor shell 31. The reinforcing rib effectively improves the overall rigidity and bending strength of the first pump shell 32 and the motor shell 31 by increasing the cross-sectional area between the first pump shell 32 and the motor shell 31, thereby reducing the risk of deformation caused by vibration, torque, or external load.

[0070] With reference to Figure 9 An inner edge of the second pump shell 33 is provided with a placement groove 37. A sealing ring matched with the size of the placement groove is arranged in the placement groove 37. The sealing ring is tightly arranged between the flange plate 2 and the second pump shell 33. When the pump is working, a certain pressure is generated inside. Water will try to flow out from all possible gaps under the action of the pressure. The sealing ring tightly arranged between the flange plate 2 and the second pump shell 33 forms a tight sealing interface, effectively blocks the water flow, ensures that the water can only flow in the normal channel of the pump, and guarantees the working efficiency and performance of the pump.

[0071] In the related art, the motor shell, the pump shell, and the cavity shell are designed in a split type. The motor shell, the pump shell, and the cavity shell are connected into a whole through a V-shaped buckle structure in the axial direction. The split type design requires that sealing rings be arranged between the motor shell and the pump shell and between the pump shell and the cavity shell. However, the embodiment of the present application only needs to arrange a sealing ring between the flange plate 2 and the second pump shell 33 to achieve sealing, thereby reducing potential leakage points, improving the sealing reliability of the entire pump system, and saving the space inside the pump by reducing the use of the sealing ring, which provides more space for the arrangement of other components, which helps to optimize the internal structure of the pump.

[0072] The detection method based on the heating pump comprises the following steps:

[0073] After the pump shell 1 and the flange plate 2 are assembled, the first clamping assembly is connected, so that the pump shell 1 and the flange plate 2 are in the first clamping state;

[0074] If the heating pump is normal, the pump shell 1 and the flange plate 2 are locked and fixed through the second clamping assembly, so that the pump shell 1 and the flange plate 2 are in the second clamping state; if the heating pump is abnormal (for example, the sealing performance is not enough, the function cannot be realized, etc.), the first clamping assembly is disconnected, so that the pump shell 1 and the flange plate 2 are separated from the first clamping state, and the heating pump is disassembled.

[0075] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the embodiment without creative contribution according to the needs after reading the specification, and the modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A heat pump, characterized by: The utility model relates to a pump, including pump shell (1), flange plate (2), buckle unit and heating pipe, the heating pipe sets up in pump shell (1), pump shell (1) with flange plate (2) are connected through buckle unit, the buckle unit includes first clamping assembly and second clamping assembly, When pump shell (1) and flange plate (2) are connected through first clamping assembly, pump shell (1) and flange plate (2) are in first clamping state between; When pump shell (1) and flange plate (2) are connected in turn through first clamping assembly and second clamping assembly, pump shell (1) and flange plate (2) are in second clamping state between; First clamping assembly includes first clamping part and first clamping block matched with first clamping part, one of pump shell (1) or flange plate (2) is equipped with first clamping part, and the other sets up first clamping block; Second clamping assembly includes second clamping part and second clamping block matched with second clamping part, one of pump shell (1) or flange plate (2) is equipped with second clamping part, and the other sets up second clamping block; Second clamping part includes at least one first limiting block (4) set on pump shell (1) or flange plate (2), and second clamping block includes limiting plate (3) set on the other;When pump shell (1) and flange plate (2) are in second clamping state between, first limiting block (4) and limiting plate (3) abut; First clamping block and second clamping block are integrally arranged as clamping assembly;The clamping assembly includes first clamping block set on one of pump shell (1) or flange plate (2), and second clamping part includes second clamping block set on the other;When pump shell (1) and flange plate (2) are in second clamping state between, first clamping block and second clamping block abut; Flange plate (2) is equipped with liquid inlet pipe (6), and pump shell (1) is equipped with liquid outlet pipe (7), and pump shell (1) is equipped with impeller (8) and flow guide cover (9), the outlet end of liquid inlet pipe (6) is communicated flow guide cover (9), and flow guide cover (9) and pump shell (1) are equipped with flow guide cavity (5) communicated with liquid outlet pipe (7), impeller (8) is arranged in flow guide cavity (5), and flow guide cover (9) is equipped with first flow guide part (10) and second flow guide part (11), and second flow guide part (11) is arranged between first flow guide part (10) and liquid outlet pipe (7); First flow guide part (10) includes first inclined part (12) inclined towards liquid inlet pipe (6) and second inclined part (13) inclined away from liquid inlet pipe (6), and first inclined part (12) and second inclined part (13) are equipped with blocking part (14) arranged towards liquid inlet pipe direction; The second flow guide part (11) is provided with an impact plate (15) at one end away from the first flow guide part (10), and the impact plate (15) is located at the liquid inlet end of the liquid outlet pipe (7) away from one side of the first flow guide part (10). The pump shell (1) is provided with a limiting part (19) at the liquid inlet end of the liquid outlet pipe (7) away from one side of the first flow guide part (10), and the limiting part (19) is in abutment with the impact plate (15).

2. The heat pump of claim 1, wherein: The flow guide cover (9) is provided with a liquid passing hole (16) at the second flow guide part (11), and the pump shell (1) forms two cavities inside, which are a flow guide cavity (5) located at one side of the flow guide cover (9) close to the impeller (8) and a liquid storage cavity (17) located at one side of the flow guide cover (9) away from the impeller (8), the liquid passing hole (16) penetrates the flow guide cavity (5) and the liquid storage cavity (17), and the bottom of the liquid storage cavity (17) is lower than the highest position of the inner wall of the liquid outlet pipe (7).

3. The heat pump of claim 1, wherein: The flange plate (2) is provided with a pipeline mounting port (38), the liquid inlet pipe (6) is arranged on the pipeline mounting port (38), the axis of the pipeline mounting port (38) is arranged in a staggered manner with the axis of the impeller (8), the impeller (8) is coaxially arranged with the flow guide cover (9), and the flow guide cover (9) is connected in communication with the eccentric liquid inlet pipe (6).

4. The heat pump of claim 1, wherein: The pump shell (1) comprises a motor shell, a first pump shell and a second pump shell, the first pump shell is arranged between the motor shell and the second pump shell, and the motor shell, the first pump shell and the second pump shell are integrally arranged.

5. The method of claim 1, wherein: The detection step comprises: After the pump shell (1) and the flange plate (2) are assembled, the first clamping assembly is connected, so that the pump shell (1) and the flange plate (2) are in a first clamping state; The heating pump is detected, if the heating pump is normal, the pump shell (1) and the flange plate (2) are locked and fixed through the second clamping assembly, so that the pump shell (1) and the flange plate (2) are in a second clamping state, and if the heating pump is abnormal, the first clamping assembly is disconnected, and the heating pump is disassembled.

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