CN215672670U

CN215672670U - Pump body

Info

Publication number: CN215672670U
Application number: CN202121325532.4U
Authority: CN
Inventors: 赵祥斌
Original assignee: Wuxi Minolta Metal Products Co ltd
Current assignee: Wuxi Minolta Metal Products Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-28
Anticipated expiration: 2031-06-15

Abstract

The utility model aims to provide a pump body which comprises a base and a cylinder body, wherein the pump body is formed by screwing the base and the cylinder body, a first sealing device is detachably arranged on the base, a second sealing device is screwed at the top of the cylinder body, the first sealing device comprises a first semicircular plate, a second semicircular plate, a first screw rod and a second screw rod, the first screw rod and the second screw rod are symmetrically arranged at two sides of the bottom of the base, the first screw rod and the second screw rod are screwed in threaded holes, the top ends of the first screw rod and the second screw rod extend into the cylinder body, the first semicircular plate is hinged at the top of the first screw rod, and the second semicircular plate is hinged at the top of the second screw rod. The second sealing device is convenient to disassemble, the first sealing device can play the same sealing role when the second sealing device is disassembled, the working state of the pump body is not influenced, and the practicability of the pump body is improved.

Description

Pump body

Technical Field

The utility model relates to the field of fluid conveying or fluid pressurization, in particular to a pump body.

Background

The pump is a machine for conveying fluid or pressurizing fluid, and is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspoemulsion, liquid metal and the like, and can also convey liquid, gas mixture and liquid containing suspended solids; the pumps are various in types, and can be divided into a positive displacement pump, a power pump and other types of pumps according to the working principle, an electric pump, a water turbine pump and the like according to the driving method, a single-stage pump and a multi-stage pump according to the structure, a water pump, an oil pump, a slurry pump and the like according to the property of conveying liquid, and the pumps are used as general machines and widely applied to the fields of production in chemical and petroleum departments, agricultural production, mining industry, metallurgical industry, national defense construction and the like.

At present, chinese patent with publication number CN203476719U discloses a pump body, which comprises a pump case and a liquid outlet connected to the pump case, wherein a boss structure is arranged at the joint of the pump case and the liquid outlet, the boss structure is connected with a heat tracing cavity formed by wrapping a heat tracing sleeve through a welding part and used for heating a medium in the pump, a circular ring is arranged at the inner side of the liquid outlet, the front surface of the circular ring is perpendicular to the axis of the pump case, the shape of the circular ring is matched with the draft angle of the boss structure, and a ceramic layer is sprayed on the inner flow channel surface of the pump body and the surface of the heat tracing cavity.

The above prior art solutions have the following drawbacks: connect through the welded mode, the gas tightness of the pump body is relatively poor, and pump body inner part can not dismantle and change, and the pump body is longe-lived, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a pump body which solves the above mentioned problems of the prior art.

The technical purpose of the utility model is realized by the following technical scheme:

a pump body comprises a pump body consisting of a base and a cylinder body in a screwed connection mode, wherein a first sealing device is detachably mounted on the base, a second sealing device is screwed on the top of the cylinder body, the first sealing device comprises a first semicircular plate, a second semicircular plate, a first screw and a second screw, the first screw and the second screw are symmetrically arranged on two sides of the bottom of the base, the first screw and the second screw are screwed in threaded holes, the top ends of the first screw and the second screw extend into the cylinder body, the first semicircular plate is hinged to the top of the first screw, and the second semicircular plate is hinged to the top of the second screw;

in a further embodiment, a first annular groove is formed in the top end of the cylinder body, a first sealing ring is fixedly mounted in the first annular groove, and the diameters of the first semicircular plate and the second semicircular plate are consistent with the diameter of the first sealing ring;

in a further embodiment, the bottom end periphery of the first annular groove is provided with a chamfer;

in a further embodiment, the second sealing device comprises a sealing plate and a second sealing ring, the sealing plate is screwed on the top end of the inside of the cylinder, a shaft hole is formed in the middle of the sealing plate, a second annular groove is formed in the shaft hole, and the second sealing ring is fixedly installed in the second annular groove;

in a further embodiment, a first semicircular hole is formed in the right side of the top of the first semicircular plate, a second semicircular hole is formed in the left side of the top of the second semicircular plate, the diameter of the first semicircular hole and the diameter of the second semicircular hole are consistent with the diameter of the shaft hole in the second sealing device, a groove is formed in the right side of the first semicircular plate, and a sealing strip is fixedly mounted inside the groove;

by adopting the technical scheme, when the second sealing device fails due to corrosion or damage, the first sealing device can timely ensure the air tightness in the pump body, so that the pump body can continuously and stably work, and in addition, when the second sealing device needs to be replaced, the first sealing device can play the same role as the second sealing device, so that the normal working state of the pump body is not influenced while the sealing device is replaced;

in a further embodiment, the base includes integrated into one piece's lower disc portion and upper disc portion, the lateral wall of upper disc portion is provided with the screw thread that is used for with the barrel spiro union, the diameter of lower disc portion is greater than the external diameter of barrel, the bottom face of barrel is provided with the third annular groove, the top fixed mounting of lower disc portion have with the third sealing washer that the third annular groove corresponds.

By adopting the technical scheme, the second sealing device, the third sealing device and the barrel can be detached and replaced in a threaded connection mode, the operation is simple and flexible, and the service life of the pump body can be effectively prolonged.

In conclusion, the utility model has the following beneficial effects:

1. through the arrangement of the first sealing device, when the second air-tight device is corroded and damaged to cause poor sealing performance, a new sealing system can be established in time, the air tightness of the pump body is not affected, and the effects of ensuring the air tightness of the pump body and prolonging the service life of the pump body are achieved;

2. through the setting of barrel, can be convenient for pump body dismantlement and installation, make things convenient for timely change of spare part, play the effect of extension pump body practicality and life.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a half-section structure of the inside of the cylinder of the present invention.

In the figure, 1, a base; 2. a barrel; 3. a first sealing device; 31. a first semi-circular plate; 32. a second semicircular plate; 33. a first screw; 34. a second screw; 4. a second sealing device; 41. a sealing plate; 42. a second seal ring; 5. a first seal ring; 6. a sealing strip; 7. a third seal ring; 11. a lower disc portion; 12. an upper disc portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in fig. 1, the terms "bottom" and "top", "inner" and "outer" refer to directions toward and away from a particular component geometry, respectively, and the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present specification, "plurality" means two or more unless the direction of the center is specifically defined otherwise.

Example 1:

as shown in fig. 1-2, a pump body comprises a pump body composed of a base 1 and a cylinder 2 which are in threaded connection, wherein a first sealing device 3 is detachably mounted on the base 1, a second sealing device 4 is in threaded connection with the top of the cylinder 2, the first sealing device 3 comprises a first semicircular plate 31, a second semicircular plate 32, a first screw 33 and a second screw 34, the first screw 33 and the second screw 34 are symmetrically arranged at two sides of the bottom of the base 1, the first screw 33 and the second screw 34 are in threaded connection in a threaded hole, the top ends of the first screw 33 and the second screw 34 extend into the cylinder 2, the first semicircular plate 31 is hinged to the top of the first screw 33, and the second semicircular plate 32 is hinged to the top of the second screw 34;

a first semicircular hole is formed in the right side of the top of the first semicircular plate 31, a second semicircular hole is formed in the left side of the top of the second semicircular plate 32, the diameter of the first semicircular hole and the diameter of the second semicircular hole are consistent with the diameter of the shaft hole in the second sealing device 4, a groove is formed in the right side of the first semicircular plate 31, and a sealing strip 6 is fixedly installed inside the groove;

the top of barrel 2 is provided with first annular groove, and fixed mounting has first sealing washer 5 in the first annular groove, and the diameter of first semicircle board 31 and second semicircle board 32 all is unanimous with the diameter of first sealing washer 5.

A chamfer is arranged on the periphery of the bottom end of the first annular groove;

when the first sealing device 3 is in a non-working state, the first semicircular plate 31 and the second semicircular plate 32 in the first sealing device 3 are in a tilting state, and because the bottom end periphery of the first annular groove is provided with a chamfer, when the first semicircular plate 31 and the second semicircular plate 32 are tilted, the bottoms of the first semicircular plate 31 and the second semicircular plate 32 are attached to the bevel edge of the chamfer at the bottom end of the first annular groove to form a stable support, so that the first sealing device 3 is also in a stable state when not working;

when the first sealing device 3 is in a working state, the arrangement of the first sealing ring 5 and the sealing strip 6 can ensure the sealing performance of the first sealing device 3, when the sealing performance of the second sealing device 4 is reduced or the second sealing device 4 is damaged and needs to be replaced, an operator can rotate the first screw 33 and the second screw 34 screwed on the bottom of the base 1, so that the first screw 33 and the second screw 34 go deep into the barrel 2, at the moment, the first screw 33 and the second screw 34 move upwards, the bottoms of the first semicircular plate 31 and the second semicircular plate 32 are both provided with hinges, the bottoms of the hinges are fixedly provided with small bearings, the first screw 33 and the second screw 34 can freely rotate under the state of being connected with the hinges, therefore, when the first screw 33 and the second screw 34 move upwards, under the support of the first screw 33 and the second screw 34, the first semicircular plate 31 and the second semicircular plate 32 rotate to a horizontal state by taking the upper edge of the first annular groove as an axis, the first semi-circular plate 31 and the second semi-circular plate 32 extrude the first sealing ring 5 to the inside of the first annular groove in the moving process, the first sealing ring 5 generates elastic deformation to fill the whole first annular groove, meanwhile, when the first semi-circular plate 31 and the second semi-circular plate 32 are horizontal, the right side of the first semi-circular plate 31 is attached to the left side of the second semi-circular plate 32, the sealing strip 6 fixedly arranged in the groove on the right side of the first semi-circular plate 31 is transversely extruded to generate elastic deformation, and meanwhile, when the first semi-circular plate 31 and the second semi-circular plate 32 are attached to the outer wall of the shaft, the air tightness is not influenced, so that the first sealing device 3 has a good sealing effect, and through the implementation mode, a worker can timely disassemble and replace the second sealing device 4, the normal work of the pump body is ensured, and the service life of the pump body is prolonged;

in addition, the bottom parts of the first screw 33 and the second screw 34 are provided with the hexagon socket holes, so that an operator can conveniently rotate the first screw 33 and the second screw 34 through the hexagon socket wrench, and meanwhile, the arrangement of the hexagon socket holes ensures that the bottom part of the base 1 is free from protrusions, so that the pump body is convenient to fix and install;

the second sealing device 4 comprises a sealing plate 41 and a second sealing ring 42, the sealing plate 41 is screwed on the top end of the interior of the cylinder body 2, a shaft hole is formed in the middle of the sealing plate 41, a second annular groove is formed in the shaft hole, and the second sealing ring 42 is fixedly installed in the second annular groove;

the inner wall of the top end of the cylinder body 2 is provided with threads which are matched with the threads arranged on the outer wall of the sealing plate 41, the sealing plate 41 is in threaded connection with the top end of the inner part of the cylinder body 2 through the threads, and the second sealing ring 42 fixedly arranged in the second annular groove ensures that the second sealing device 4 can ensure good air tightness when being in contact with a shaft, and in the process of threaded connection of the sealing plate 41, the second sealing ring 42 generates elastic deformation to fill the second annular groove, so that the sealing performance of the second sealing device 4 is ensured;

the base 1 comprises a lower disc part 11 and an upper disc part 12 which are integrally formed, the side wall of the upper disc part 12 is provided with threads for being in threaded connection with the cylinder 2, the diameter of the lower disc part 11 is larger than the outer diameter of the cylinder 2, the bottom end face of the cylinder 2 is provided with a third annular groove, and the top of the lower disc part 11 is fixedly provided with a third sealing ring 7 corresponding to the third annular groove;

the bottom inboard of barrel 2 is provided with the screw thread, and this screw thread cooperatees with the screw thread on the lateral wall of the last disc portion 12 of base 1, barrel 2 passes through the screw thread spiro union on the top of base 1, the third sealing washer 7 of the top fixed mounting of the lower disc portion 11 of base 1 has played the effect of guaranteeing the gas tightness of barrel 2 and base 1 junction, the third annular groove that sets up on the face of barrel 2 bottom corresponds with third sealing washer 7, at the in-process of barrel 2 spiro union, the gomphosis of third sealing washer 7 advances the inside of third annular groove, third sealing washer 7 is extruded and is produced deformation, fill whole third annular groove, make the inside and outside air of barrel 2 closely isolated, the gas tightness of barrel 2 has been guaranteed.

The specific implementation process comprises the following steps: when the first sealing device 3 is in a non-working state, the first semicircular plate 31 and the second semicircular plate 32 are in an inclined state, the bottom parts of the first semicircular plate 31 and the second semicircular plate 32 are attached to the inclined edge of the periphery of the bottom end of the first annular groove, when the air tightness of the second sealing device 4 is reduced or the second sealing device 4 is damaged and needs to be replaced, the first sealing device 3 can achieve the same sealing effect as the second sealing device 4, so that a worker can conveniently and timely detach and replace the second sealing device 4 under the condition that the working state of a pump body is not influenced, firstly, the worker rotates the first screw 33 and the second screw 34 which are in threaded connection with the base 1, the first screw 33 and the second screw 34 move towards the inside of the barrel body 2, the first semicircular plate 31 is hinged to the first screw 33 through a hinge, and similarly, the second semicircular plate 32 is hinged to the second screw 34 through a hinge, the first semicircular plate 31 and the second semicircular plate 32 rotate to the horizontal direction under the pushing of the first screw 33 and the second screw 34, the first sealing ring 5 fixedly installed inside the first annular groove is extruded by the first semicircular plate 31 and the second semicircular plate 32 to generate elastic deformation to fill the whole first annular groove, and similarly, the sealing strip 6 fixedly installed inside the groove on the right side of the first semicircular plate 31 is also extruded in the process of jointing the first semicircular plate 31 and the second semicircular plate 32 to generate elastic deformation, so that the sealing performance between the first semicircular plate 31 and the second semicircular plate 32 is good, the air tightness inside the pump body is ensured, and the second sealing device 4 can be detached and replaced under the condition that the working state of the pump body is not influenced; the cylinder 2 is screwed on the upper disc part 12 of the base 1 through threads, so that the cylinder 2 is convenient to mount and dismount.

In the embodiments of the present disclosure, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the disclosed embodiments of the utility model can be understood by those of ordinary skill in the art as appropriate.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a pump body, includes the pump body of constituteing by base (1) and barrel (2) spiro union, detachable installs first sealing device (3) on base (1), the top spiro union of barrel (2) has second sealing device (4), its characterized in that: first sealing device (3) include first semicircle board (31), second semicircle board (32), first screw rod (33) and second screw rod (34) symmetry set up the both sides of the bottom of base (1), and first screw rod (33) and second screw rod (34) spiro union are in the screwed hole, the top of first screw rod (33) and second screw rod (34) all extends to the inside of barrel (2), first semicircle board (31) articulate the top at first screw rod (33), second semicircle board (32) articulate the top at second screw rod (34).

2. A pump body according to claim 1, characterized in that: the top of barrel (2) is provided with first annular groove, fixed mounting has first sealing washer (5) in the first annular groove, the diameter of first semicircle board (31) and second semicircle board (32) all is unanimous with the diameter of first sealing washer (5).

3. A pump body according to claim 2, wherein: and the periphery of the bottom end of the first annular groove is provided with a chamfer.

4. A pump body according to claim 1, characterized in that: the second sealing device (4) comprises a sealing plate (41) and a second sealing ring (42), the sealing plate (41) is in threaded connection with the top end of the inner portion of the barrel body (2), a shaft hole is formed in the middle of the sealing plate (41), a second annular groove is formed in the shaft hole, and the second sealing ring (42) is fixedly installed in the second annular groove.

5. A pump body according to claim 1, characterized in that: the right side at the top of first semicircle board (31) has been seted up first semicircle hole, the second semicircle hole has been seted up in the left side at the top of second semicircle board (32), the diameter of first semicircle hole, the diameter of second semicircle hole with the diameter in the shaft hole in second sealing device (4) is unanimous, the right side of first semicircle board (31) is seted up flutedly, the inside fixed mounting of recess has sealing strip (6).

6. A pump body according to claim 1, characterized in that: base (1) includes integrated into one piece's lower disc portion (11) and last disc portion (12), the lateral wall of going up disc portion (12) is provided with the screw thread that is used for with barrel (2) spiro union, the diameter of lower disc portion (11) is greater than the external diameter of barrel (2), the bottom face of barrel (2) is provided with third annular groove, the top fixed mounting of lower disc portion (11) have with third sealing washer (7) that third annular groove corresponds.