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CN-121976953-A - Water delivery pump for central heating

CN121976953ACN 121976953 ACN121976953 ACN 121976953ACN-121976953-A

Abstract

The invention relates to the technical field of central heating systems and discloses a water delivery pump for central heating, which comprises a pump shell assembly, an impeller, a rotary driving assembly, a base, a locking assembly and a locking assembly, wherein the pump shell assembly is provided with a runner cavity, a water inlet and a water outlet, the impeller is rotatably arranged in the runner cavity, a power output end of the rotary driving assembly is connected with the impeller, the base comprises a first base body and a second base body, a locking groove is formed in the first base body, the second base body is detachably connected with the first base body and surrounds the first base body to form a mounting cavity, the pump shell assembly is clamped between the second base body and the first base body and is accommodated in the mounting cavity, the locking assembly comprises a lock tongue and a driving part, the lock tongue is slidably arranged on the second base body, and the driving part is connected with the lock tongue. The invention is provided with the locking component and the locking groove, and the driving component is used for driving the lock tongue to extend into or withdraw from the locking groove, so that the integral quick locking and unlocking of the pump shell component can be realized, the efficiency of cleaning scale inside the pump shell component and replacing the impeller can be improved, and the maintenance difficulty and maintenance time of the water pump can be greatly reduced.

Inventors

  • LI JISHEN
  • An hang
  • LIU ENLIN
  • ZHANG YUNPENG
  • REN ZONGJIE

Assignees

  • 呼伦贝尔安泰热电有限责任公司满洲里热电厂

Dates

Publication Date
20260505
Application Date
20260228

Claims (10)

  1. 1. A water pump for central heating, comprising: The pump shell assembly (1) is provided with a runner cavity (101), a water inlet (102) and a water outlet, wherein the water inlet (102) and the water outlet are communicated with the runner cavity (101); an impeller (2) rotatably arranged in the flow passage chamber (101); The power output end of the rotary driving assembly (3) is detachably connected with the impeller (2) and is used for driving the impeller (2) to rotate; The base (4) comprises a first base body (401) and a second base body (403), wherein a locking groove (402) is formed in the first base body (401), the second base body (403) and the first base body (401) are sequentially arranged along a first direction, are detachably connected, and form an installation cavity (404) in a surrounding mode, and the pump shell assembly (1) is clamped between the second base body (403) and the first base body (401) and is contained in the installation cavity (404); The locking assembly (5) comprises a lock tongue (501) and a driving part, wherein the lock tongue (501) is slidably arranged on the second base (403), the sliding direction of the lock tongue (501) is in a second direction, the second direction is intersected with the first direction, and the driving part is connected with the lock tongue (501) and is used for driving the lock tongue (501) to slide so that the lock tongue (501) stretches into or withdraws from the locking groove (402).
  2. 2. The water feeding pump for central heating according to claim 1, wherein the driving part comprises a screw (502) and a knob (504), the axis of the screw (502) is in the second direction, the screw (502) is rotatably arranged on the second base (403), the knob (504) is positioned outside the second base (403) and is connected with the screw (502), a connecting part (505) is arranged on the lock tongue (501), and the connecting part (505) is in threaded connection with the screw (502).
  3. 3. The water pump for central heating according to claim 2, wherein the screw (502) is disposed inside the second housing (403).
  4. 4. The water pump for central heating according to claim 3, wherein the second base (403) is provided with a plurality of anti-rotation sockets (405), the anti-rotation sockets (405) are circumferentially distributed around the axis of the screw (502), the knob (504) is provided with a plurality of positioning pins (506), and the anti-rotation sockets (405) are used for the plurality of positioning pins (506) to extend into one by one; the knob (504) and the screw (502) are relatively slidable in the second direction and relatively fixed in the circumferential direction.
  5. 5. The water pump for central heating according to claim 4, wherein a sliding cavity (503) is provided in the screw (502), a guide shaft (507) is connected to one side of the knob (504) close to the screw (502), a first abutting structure (508) is provided at the end of the guide shaft (507), and the first abutting structure (508) is located in the sliding cavity (503) and is attached to the inner wall of the sliding cavity (503); the inner wall of the sliding cavity (503) is provided with a second abutting structure (509), the second abutting structure (509) is provided with a guide cavity (510), and the periphery of the guide shaft (507) is attached to the inner wall of the guide cavity (510).
  6. 6. The water pump for central heating according to claim 5, further comprising an elastic member (511), wherein the elastic member (511) is sleeved outside the guide shaft (507), one end of the elastic member (511) is connected to the first abutting structure (508), and the other end is abutted to the second abutting structure (509).
  7. 7. The water pump for central heating according to claim 1, wherein the first base (401) is provided with a guide upright (406), the locking groove (402) is arranged on the guide upright (406), the second base (403) is internally provided with a limiting cavity (407), the guide upright (406) stretches into the limiting cavity (407), and the lock tongue (501) is arranged in the second base (403) and the sliding path of the lock tongue passes through the limiting cavity (407).
  8. 8. A central heating water pump according to claim 1, wherein the pump housing assembly (1) comprises: the water outlet device comprises a first shell (103), wherein a first shoulder (104) is arranged on the periphery of the first shell (103), and the water outlet is arranged on the first shell (103); A second housing (105), wherein a second shoulder (106) is arranged on the periphery of the second housing (105), the second shoulder (106) is abutted with the first shoulder (104), and the runner cavity (101) and the water inlet (102) are formed between the second housing (105) and the first housing (103); An annular groove (408) is formed in the inner wall of the mounting cavity (404), and the first shoulder (104) and the second shoulder (106) are embedded in the annular groove (408).
  9. 9. The water pump for central heating according to claim 8, wherein the first shoulder (104) is provided with a plurality of first caulking grooves (109), the second shoulder (106) is provided with a plurality of second caulking grooves (110), the second caulking grooves (110) are in one-to-one correspondence with the first caulking grooves (109) and form positioning caulking grooves, the inner wall of the ring groove (408) is provided with a plurality of rotation preventing key teeth (409) in one-to-one correspondence with the positioning caulking grooves, and each rotation preventing key tooth (409) is respectively embedded in the corresponding positioning caulking groove.
  10. 10. The water pump for central heating according to any one of claims 1 to 9, wherein at least two locking assemblies (5) are provided, the two locking assemblies (5) are respectively arranged on two opposite sides of the second seat (403), at least two locking grooves (402) are provided on the first seat (401), and the two locking grooves (402) are respectively matched with the two locking assemblies (5).

Description

Water delivery pump for central heating Technical Field The invention relates to the technical field of central heating systems, in particular to a water delivery pump for central heating. Background The water pump in the central heating system is a key device for delivering hot water from a heat source (e.g., boiler, heat exchange station, etc.) to each heating terminal (e.g., home, office building, etc.). The operation efficiency directly determines the heat transmission efficiency and stability of the whole system, so that the reliability, the high efficiency and the durability of the equipment are extremely high. Current water pumps have some inherent drawbacks when dealing with practical complex operating environments. Firstly, in long-term operation, the pump body and the inner wall of the runner can be continuously fouled, and the structure of the existing water delivery pump is complex, the disassembly is difficult, and the accumulated scale in the interior is difficult to effectively clean. The continuous accumulation of scale not only can obviously increase the flow passage resistance and the energy consumption of the pump, but also can lead to the continuous attenuation of rated flow and lift, and even cause overheating or cavitation damage of the pump body when serious. Secondly, due to the adoption of a fixed impeller design, the performance parameters of the water pump cannot be flexibly adjusted. When the operating conditions of the heating system (such as the change of the heating range and the adjustment of the load) or the requirement on the medium are changed, a new water pump needs to be replaced, so that higher equipment cost is caused. Disclosure of Invention Aiming at the problem that the impeller is difficult to detach in the prior art, the invention provides the water conveying pump for central heating, which can enable the impeller to be detached more simply and efficiently. The invention provides a centralized heat supply water pump which comprises a pump shell assembly, an impeller, a rotary driving assembly, a base, a pump shell assembly and a locking assembly, wherein the pump shell assembly is provided with a runner cavity, a water inlet and a water outlet, the water inlet and the water outlet are all communicated with the runner cavity, the impeller is rotatably arranged in the runner cavity, a power output end of the rotary driving assembly is connected with the impeller and used for driving the impeller to rotate, the base comprises a first base body and a second base body, a locking groove is formed in the first base body, the second base body and the first base body are sequentially arranged along a first direction, the second base body and the first base body are detachably connected and surround to form a mounting cavity, the pump shell assembly is clamped between the second base body and the first base body and is accommodated in the mounting cavity, the locking assembly comprises a lock tongue and a driving part, the lock tongue is slidably arranged on the second base body, the sliding direction of the lock tongue is in a second direction, the second direction is crossed with the first direction, and the driving part is connected with the lock tongue in the driving groove to extend into the locking groove. It is understood that the second direction is not parallel to the first direction, that is, the sliding direction of the latch, and the direction in which the first seat is assembled or disassembled from the second seat. The driving component can be an automatic driving component, such as one of a cylinder, an electric push rod, a motor screw rod mechanism and the like, or can be a manual driving component. When the water pump for central heating is required to clean scale in the flow channel cavity or replace the impeller, the driving part drives the lock tongue to slide so that the lock tongue exits the lock groove, then the second seat body and the first seat body are separated along the first direction, and the pump shell assembly is taken down, so that the flow channel cavity and the impeller of the pump shell assembly can be cleaned or the impeller can be replaced. Preferably, the driving part comprises a screw rod and a knob, the axis of the screw rod is in the second direction, the screw rod is rotatably arranged on the second seat, the knob is positioned outside the second seat and connected with the screw rod, and the lock tongue is provided with a connecting part which is in threaded connection with the screw rod. When the second seat body and the first seat body are required to be unlocked, the knob positioned outside the second seat body is manually rotated. The knob drives the screw rod connected with the knob to rotate around the axis of the knob. Because the screw rod is matched with the connecting part on the lock tongue through threads, the rotary motion of the screw rod is converted into the linear motion of the lock tongue along the second direct