CN217713049U

CN217713049U - Anti-blocking structure and pump

Info

Publication number: CN217713049U
Application number: CN202221879596.3U
Authority: CN
Inventors: 韩元平; 李硕
Original assignee: Hefei Xinhu Canned Motor Pump Co Ltd
Current assignee: Hefei Xinhu Canned Motor Pump Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-01
Anticipated expiration: 2032-07-20

Abstract

The utility model relates to a prevent stifled structure and pump, prevent stifled structure and include: a housing having a through hole; the adjusting rod is arranged in the through hole in a sliding mode along the axial direction of the through hole so as to switch between a working position and an avoiding position, when the adjusting rod is located at the working position, a first end of the adjusting rod can extend out of the through hole, and the adjusting rod can rotate to drive the rotor shaft to rotate; when the adjusting rod is positioned at the avoiding position, the adjusting rod and the rotor shaft can independently rotate; the adjusting rod is made of metal; the cover plate is covered at one end of the through hole, and a first avoidance hole which is opposite to the second end of the adjusting rod is formed in the cover plate. The utility model provides a prevent stifled structure can reduce the maintenance degree of difficulty of rotor shaft, improves maintenance efficiency.

Description

Anti-blocking structure and pump

Technical Field

The utility model relates to a drive arrangement technical field especially relates to an anti-blocking structure and pump.

Background

A pump, such as a canned pump, includes a rotor shaft, and the rotor shaft may be blocked and not rotated due to a foreign material after the pump is used for a long time. Often through taking apart the pump case among the prior art, use specialized tool or manual rotatory rotor shaft, treat the rotor shaft and can rotate the back, install the pump case again, increased the maintenance degree of difficulty like this, and maintenance efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-blocking structure to avoid the rotor shaft to be by owner.

In order to achieve the above object, the utility model discloses a first aspect provides an anti-blocking structure, include:

a housing having a through hole;

the adjusting rod is arranged in the through hole in a sliding mode along the axial direction of the through hole so as to switch between a working position and an avoiding position, when the adjusting rod is located at the working position, a first end of the adjusting rod can extend out of the through hole, and the adjusting rod can rotate to drive the rotor shaft to rotate; when the adjusting rod is located at the avoiding position, the adjusting rod and the rotor shaft can rotate independently; the adjusting rod is made of metal;

the cover plate covers one end of the through hole, and a first avoidance hole opposite to the second end of the adjusting rod is formed in the cover plate.

Optionally, the anti-blocking structure further comprises an elastic part, and the elastic part is arranged in the through hole and can drive the adjusting rod to be switched from the working position to the avoiding position.

Optionally, the elastic member is a spring, the spring is sleeved on the adjusting rod, the adjusting rod is provided with a first stopping portion, the inner wall of the through hole is connected with a second stopping portion, and the spring is clamped between the first stopping portion and the second stopping portion.

Optionally, the first end comprises an insertion portion for inserting the rotor shaft.

Optionally, the cross section of the insertion portion is cross-shaped, straight-line-shaped or polygonal.

Optionally, a first sealing element is arranged between the adjusting rod and the housing.

Optionally, a third stopping portion is further disposed on the adjusting rod, and the first sealing element is clamped between the first stopping portion and the third stopping portion.

Optionally, the second end includes an operating portion, the operating portion is a cross-shaped groove, a straight-line-shaped groove or a polygonal groove, or the operating portion is a protrusion with a cross-shaped, straight-line-shaped or polygonal cross section.

Another object of the utility model is to provide a pump to avoid the rotor shaft to be held by the owner.

To achieve the purpose, the second aspect of the present invention adopts the following technical solutions:

the utility model provides a pump, includes the pump case, rotate set up in rotor shaft, control box and prevent stifled structure in the pump case, the one end of pump case has the opening, prevent stifled structure insert locate the opening, the control box connect in the pump case to the cover is located prevent outside the stifled structure, set up the second on the control box and dodged the hole, the second dodge the hole with the first hole of dodging sets up relatively and communicates.

Optionally, one end of the rotor shaft close to the anti-blocking structure is provided with a jack, and the first end can be inserted into the jack.

It is from top to bottom visible, the utility model provides a technical scheme takes place to block up the back when the rotor shaft, can use tools such as screwdrivers to pass the first hole of dodging, and the second end of adjusting the pole is supported to the tool, is located the second position until adjusting the pole, and the rotation is adjusted the pole, and it is rotatory to adjust the pole and drive the rotor shaft, and the rotatory back foreign matter of rotor shaft is discharged. When the rotor shaft normally works, the adjusting rod is located at the avoiding position, so that the rotation of the rotor shaft is not influenced. The apron can avoid adjusting the pole and break away from the through-hole, sets up first hole of dodging on the apron for still can operate the regulation pole under the prerequisite of not dismantling the apron. The anti-blocking structure can reduce the maintenance difficulty of the rotor shaft and improve the maintenance efficiency.

Drawings

Fig. 1 is a schematic structural view of an anti-blocking structure provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another anti-blocking structure provided by the embodiment of the present invention;

fig. 3 is a schematic structural diagram of another anti-blocking structure provided in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of an adjusting lever provided by the embodiment of the present invention;

fig. 5 is a schematic structural diagram of another adjusting lever provided by the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a pump according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a pump provided by an embodiment of the present invention;

fig. 8 is a sectional view of a part of the structure of a pump according to an embodiment of the present invention.

In the figure:

1. a housing; 11. a through hole; 12. a second stopper portion;

2. adjusting a rod; 21. a first stopper portion; 22. an insertion portion; 23. a third stopper portion; 24. an operation section;

3. a cover plate; 31. a first avoidance hole; 32. a side plate; 33. a base plate;

4. an elastic member; 5. a first seal member;

10. a pump housing; 20. a rotor shaft; 201. a jack; 30. an anti-blocking structure; 40. a control box; 401. a second avoidance hole; 50. a second seal.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements relevant to the present invention are shown in the drawings.

The present invention is limited to certain orientation words, and the use of orientation words such as "upper", "lower", "left", "right", "inner" and "outer" in the case where no opposite explanation is made is convenient for understanding, and thus does not limit the scope of the present invention.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

This embodiment provides a prevent stifled structure 30 for in pumps such as water pump, oil pump, canned motor pump, in order to reduce the maintenance degree of difficulty, improve maintenance efficiency.

As shown in fig. 1, the anti-blocking structure 30 provided in this embodiment includes a housing 1, an adjusting rod 2 and a cover plate 3, the housing 1 has a through hole 11, the adjusting rod 2 is slidably disposed in the through hole 11 of the rotor shaft 20 along an axial direction of the through hole 11 of the rotor shaft 20 to switch between a working position and an avoiding position, when the adjusting rod 2 of the rotor shaft 20 is located at the working position of the rotor shaft 20, a first end of the adjusting rod 2 of the rotor shaft 20 can extend out of the through hole 11 of the rotor shaft 20, and the adjusting rod 2 of the rotor shaft 20 can rotate to drive the rotor shaft 20 to rotate; when the rotor shaft 20 adjusting rod 2 is located at the position of avoiding the rotor shaft 20, the rotor shaft 20 adjusting rod 2 and the rotor shaft 20 of the rotor shaft 20 can rotate independently. The cover plate 3 covers one end of the through hole 11 of the rotor shaft 20, and the cover plate 3 of the rotor shaft 20 is provided with a first avoidance hole 31 which is opposite to the second end of the adjusting rod 2 of the rotor shaft 20. Alternatively, the adjusting lever 2 is made of metal.

When the rotor shaft 20 is blocked, a tool such as a screwdriver can be used to pass through the first avoiding hole 31, the tool butts against the second end of the adjusting rod 2 until the adjusting rod 2 is located at the second position, the adjusting rod 2 is rotated, the adjusting rod 2 drives the rotor shaft 20 to rotate, and foreign matters are discharged after the rotor shaft 20 rotates. When the rotor shaft 20 is operating normally, the adjustment lever 2 is in the retracted position so that the rotation of the rotor shaft 20 is not affected. The cover plate 3 can prevent the adjusting rod 2 from separating from the through hole 11, and the cover plate 3 is provided with the first avoiding hole 31, so that the adjusting rod 2 can still be operated on the premise of not detaching the cover plate 3. The anti-blocking structure 30 provided by the embodiment can reduce the maintenance difficulty of the rotor shaft 20 and improve the maintenance efficiency.

As shown in fig. 1, optionally, the cover plate 3 can be connected in the through hole 11 through a thread, that is, an internal thread is provided in the through hole 11, an external thread is provided on the cover plate 3, and the cover plate 3 is screwed through the internal thread and the external thread, so that the cover plate 3 can be disassembled, and the anti-blocking result can be conveniently maintained or replaced by the adjusting rod 2.

In other alternative embodiments, as shown in fig. 2, the cover plate 3 may also be in interference fit with the through hole 11, and in order to facilitate mounting of the cover plate 3, the cover plate 3 may include a bottom plate 33 and a side plate 32 connected to the bottom plate 33, and the side plate 32 is connected to the bottom plate 33 at an obtuse angle, so that when the cover plate 3 is mounted, the side plate 32 can be deformed to clamp the cover plate 3 in the through hole 11. In a further embodiment, as shown in fig. 3, the cover plate 3 may also be fixed in the through hole 11 by welding.

In order to enable the adjusting rod 2 to be automatically switched from the working position to the avoiding position, optionally, the anti-blocking structure 30 of the rotor shaft 20 further comprises an elastic member 4, the elastic member 4 of the rotor shaft 20 is disposed in the through hole 11 of the rotor shaft 20, and can drive the rotor shaft 20 to switch the adjusting rod 2 from the working position of the rotor shaft 20 to the avoiding position of the rotor shaft 20.

Optionally, the elastic member 4 of the rotor shaft 20 is a spring, the rotor shaft 20 is sleeved on the adjusting rod 2, a first stopping portion 21 is disposed on the adjusting rod 2 of the rotor shaft 20, a second stopping portion 12 is connected to an inner wall of the through hole 11 of the rotor shaft 20, and the rotor shaft 20 is clamped between the first stopping portion 21 of the rotor shaft 20 and the second stopping portion 12 of the rotor shaft 20. When the adjusting rod 2 is located at the working position, the spring is in a compressed state, and after the tool does not apply force to the adjusting rod 2 any more, the adjusting rod 2 is automatically switched to the avoiding position under the restoring force of the spring.

In order to facilitate the application of force to the adjusting lever 2 by a tool, optionally, the second end includes an operating portion 24, the operating portion 24 of the rotor shaft 20 is a cross-shaped groove, a straight-shaped groove or a polygonal groove, and at this time, a cross screwdriver matched with the cross-shaped groove, a straight screwdriver matched with the straight-shaped groove or a screwdriver with a polygonal protrusion is inserted into the operating portion 24, so that the adjusting lever 2 can be pushed to be switched from the avoiding position to the working position and the adjusting lever 2 can be driven to rotate. Of course, the operation portion 24 may have another structure, and will not be described one by one.

To avoid leakage of liquid inside the pump, optionally, a first seal 5 is provided between the rotor shaft 20 regulating rod 2 and the rotor shaft 20 housing 1. The rotor shaft 20 is further provided with a third stopper 23 on the adjusting rod 2, and the first sealing member 5 of the rotor shaft 20 is sandwiched between the first stopper 21 of the rotor shaft 20 and the third stopper 23 of the rotor shaft 20, so as to prevent the first sealing member 5 from moving. Optionally, the first seal 5 is a sealing ring.

Optionally, to facilitate rotation of rotor shaft 20 by the first end, the first end includes an insertion portion 22, and rotor shaft 20 insertion portion 22 is used for inserting rotor shaft 20 into rotor shaft 20. Specifically, the rotor shaft 20 has an insertion hole 201 formed at an end of the rotor shaft 20 close to the anti-blocking structure 30 of the rotor shaft 20, and the insertion portion 22 at the first end of the rotor shaft 20 is capable of being inserted into the insertion hole 201 of the rotor shaft 20.

Alternatively, the cross-section of the insertion portion 22 of the rotor shaft 20 shown in fig. 4 is cross-shaped, or in-line or polygonal shape as shown in fig. 5, and the shape of the insertion hole 201 is a shape that fits with the insertion portion 22.

As shown in fig. 6 and 7, the present embodiment provides a pump so as to solve the problem that the rotor shaft 20 of the pump is jammed. The pump includes pump case 10, rotate the rotor shaft 20 who sets up in rotor shaft 20 pump case 10, control box 40 and anti-blocking structure 30, the one end of rotor shaft 20 pump case 10 has the opening, rotor shaft 20 anti-blocking structure 30 is inserted and is located the opening of rotor shaft 20, rotor shaft 20 control box 40 is connected in rotor shaft 20 pump case 10, and the cover is located outside rotor shaft 20 anti-blocking structure 30, rotor shaft 20 has been seted up on the control box 40 the second and has been dodged hole 401, rotor shaft 20 second dodges hole 401 and rotor shaft 20 first dodge hole 31 and set up relatively and communicate.

The present embodiment provides that the pump control box 40 is provided on the axial end portion of the rotor shaft 20, thereby reducing the radial size of the pump and requiring less installation space. Set up second dodge hole 401 on control box 40, the instrument pass second dodge hole 401 alright with can operate anti-blocking structure 30 to needn't dismantle control box 40, reduce the maintenance degree of difficulty, improve maintenance efficiency.

Rotor shaft 20 the pump casing 10 is sealingly connected to the anti-clogging structure 30 of the rotor shaft 20. Specifically, the pump casing 10 and the casing of the anti-blocking structure 30 are connected by interference fit, or by screw thread, or by welding.

As shown in fig. 8, when the pump casing 10 is screwed to the casing of the anti-blocking structure 30, in order to improve the sealing performance between the pump casing 10 and the anti-blocking structure 30 of the rotor shaft 20, a second sealing member 50 may be disposed between the anti-blocking structure 30 and the pump casing 10, and the second sealing member 50 may be a sealing ring.

Although the invention has been described in detail with respect to the general description and the specific embodiments and experiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of this invention without departing from the spirit thereof.

Claims

1. An anti-clogging structure, comprising:

a housing (1) having a through hole (11);

the adjusting rod (2) is arranged in the through hole (11) in a sliding manner along the axial direction of the through hole (11) so as to be switched between a working position and an avoiding position, when the adjusting rod (2) is located at the working position, the first end of the adjusting rod (2) can extend out of the through hole (11), and the adjusting rod (2) can rotate to drive the rotor shaft (20) to rotate; when the adjusting rod (2) is located at the avoiding position, the adjusting rod (2) and the rotor shaft (20) can rotate independently; the adjusting rod (2) is made of metal;

the cover plate (3) is covered at one end of the through hole (11), and a first avoiding hole (31) which is opposite to the second end of the adjusting rod (2) is formed in the cover plate (3).

2. The anti-blocking structure according to claim 1, further comprising an elastic member (4), wherein the elastic member (4) is disposed in the through hole (11) and can drive the adjusting lever (2) to switch from the working position to the avoiding position.

3. The anti-blocking structure according to claim 2, wherein the elastic member (4) is a spring, the spring is sleeved on the adjusting rod (2), a first stopping portion (21) is disposed on the adjusting rod (2), a second stopping portion (12) is connected to an inner wall of the through hole (11), and the spring is sandwiched between the first stopping portion (21) and the second stopping portion (12).

4. Anti-clogging structure according to claim 1, characterized in that said first end comprises an insertion portion (22), said insertion portion (22) being intended to insert said rotor shaft (20).

5. Anti-clogging structure according to claim 4, characterized in that said insertion portion (22) has a cross-shaped, rectilinear or polygonal cross-section.

6. Anti-clogging structure according to claim 3, characterised in that a first seal (5) is arranged between the regulating rod (2) and the housing (1).

7. The anti-blocking structure according to claim 6, wherein a third stop portion (23) is further disposed on the adjusting rod (2), and the first sealing element (5) is sandwiched between the first stop portion (21) and the third stop portion (23).

8. The anti-clogging structure according to any one of claims 1 to 7, characterized in that said second end comprises an operating portion (24), said operating portion (24) being a cross-shaped groove, a straight groove or a polygonal groove, or said operating portion (24) being a protrusion having a cross-shaped, straight or polygonal cross-section.

9. The utility model provides a pump, characterized in that, including pump case (10), rotate set up in rotor shaft (20), control box (40) and any one of claim 1-8 in pump case (10) prevent stifled structure, the one end of pump case (10) has the opening, prevent stifled structure and insert and locate the opening, control box (40) connect in pump case (10) to the cover is located prevent outside the stifled structure, control box (40) are last to have seted up the second and dodge hole (401), second dodge hole (401) with first dodge hole (31) relative setting and intercommunication.

10. The pump of claim 9, wherein the rotor shaft (20) has a socket (201) formed at an end thereof adjacent to the anti-blocking structure, and the first end is inserted into the socket (201).