CN212672396U - Sand prevention protective cap - Google Patents
Sand prevention protective cap Download PDFInfo
- Publication number
- CN212672396U CN212672396U CN202020783067.8U CN202020783067U CN212672396U CN 212672396 U CN212672396 U CN 212672396U CN 202020783067 U CN202020783067 U CN 202020783067U CN 212672396 U CN212672396 U CN 212672396U
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- CN
- China
- Prior art keywords
- cap body
- cap
- protective cap
- sand control
- pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a sand control protective cap, in particular to protective cap technical field of pump, including setting up in the cap body of the pump body, the through-hole that is used for the axis of rotation to pass is offered to the cap body, internal ring groove has been seted up to the cap body, the cap body in logical indent has been seted up to the tank bottom in internal ring groove, be provided with on the cap body with lead to the micro hole of indent and external intercommunication. The device can reduce the frictional force between the cap body and the pump body and balance the pressure of the inner side and the outer side of the protective cap, and has the advantage of preventing the protective cap from influencing the rotation of the rotating shaft.
Description
Technical Field
The utility model relates to a protective cap technical field of pump, in particular to sand control protective cap.
Background
The water pump is a machine for conveying fluid or pressurizing the fluid and comprises a pump body and a rotating shaft, wherein one end of the rotating shaft extends to the outer side of the pump body, and the rotating shaft is rotatably connected with the pump body. Be provided with the protective cap of rubber material on the pump body, through the setting improvement leakproofness between the pump body and the axis of rotation of protective cap, debris such as grit prevent that aquatic from entering into the pump body and influencing the rotation of pump body axis of rotation. However, the conventional protective cap is sleeved on the rotating shaft, when the water pump is placed in a well to work, the protective cap rotates along with the rotation of the rotating shaft, the inner side of the protective cap is in a negative pressure state under the action of water pressure, the inner side of the protective cap is attached to the pump body, and meanwhile, friction between the protective cap and the rotating shaft is increased, so that the rotation of the rotating shaft is hindered. Therefore, the protective cap has a disadvantage of affecting the rotation of the rotating shaft.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a sand control protective cap, the device can reduce the frictional force between the cap body and the pump body and the pressure of the inside and outside both sides of balanced protective cap, have the pivoted advantage that prevents the protective cap influence axis of rotation.
The above technical purpose of the present invention can be achieved by the following technical solutions: the sand-prevention protective cap comprises a cap body arranged on a pump body, wherein a through hole for a rotating shaft to pass through is formed in the cap body, an inner ring groove is formed in the cap body, a through-pressure groove is formed in the bottom of the inner ring groove of the cap body, and a micro hole for communicating the through-pressure groove with the outside is formed in the cap body.
By adopting the technical scheme, the cap body is sleeved on the rotating shaft of the pump body, and the silicone grease is added into the inner ring groove to reduce the friction force between the inner side of the cap body and the pump body, so that the cap body and the pump body are prevented from being attached to each other; before the pump body is used, the micro holes are formed in the bottoms of the pressure through grooves through sharp objects such as needles, and when the pump body runs, water on the outer side of the cap body enters the pressure through grooves through the micro holes, so that the same pressure on the inner side and the outer side of the cap body is achieved, and the cap body is prevented from being attached to the pump body to block rotation of the rotating shaft. Therefore, the utility model discloses can reduce the frictional force between the cap body and the pump body and the pressure of the inside and outside both sides of balanced protective cap, have the pivoted advantage that prevents that the protective cap from influencing the axis of rotation.
The utility model discloses further set up to: the through pressure grooves are arranged in a plurality of numbers, and the through pressure grooves are arrayed along the circumference of the central line of the through hole.
Through adopting above-mentioned technical scheme, through the setting of a plurality of logical pressure grooves, increase the balanced effect of external pressure in this protective cap.
The utility model discloses further set up to: the inner peripheral surface of the cap body is provided with an annular convex block.
By adopting the technical scheme, the annular convex block is abutted against the pump body through the arrangement of the annular convex block, so that the silicone grease is prevented from being thrown out of the cap body.
The utility model discloses further set up to: the inner circumference of the annular convex block is in an arc surface arrangement.
Through adopting above-mentioned technical scheme, through the setting of annular lug convenient installation to the cap body.
The utility model discloses further set up to: the cap body is provided with a chamfer, and the annular convex block is positioned between the chamfer and the inner annular groove.
Through adopting above-mentioned technical scheme, conveniently install the cap body on the pump body through setting up of chamfer.
The utility model discloses further set up to: the cap body is provided with a clamping block on the inner wall of the through hole.
Through adopting above-mentioned technical scheme, through the setting of joint piece, install the joint piece in the axis of rotation to the fixed power that increases the cap body and axis of rotation makes the cap body rotate along with the rotation of axis of rotation.
The utility model discloses further set up to: the clamping blocks are arranged in an annular shape.
Through adopting above-mentioned technical scheme, through the setting of the fast annular of joint to increase the cap body and the axis of rotation clamping power.
The utility model discloses further set up to: the inner peripheral surface of the clamping block is arranged in an arc surface.
Through adopting above-mentioned technical scheme, conveniently install the cap body in the axis of rotation through setting up of joint piece cambered surface.
The utility model discloses further set up to: the cap body is made of elastic materials.
By adopting the technical scheme, the arrangement of the elastic material of the cap body facilitates the opening of the micro-hole in advance during use, and increases the usability of the cap body.
To sum up, the utility model discloses following beneficial effect has: sleeving the cap body on a rotating shaft of the pump body, and adding silicone grease into the inner ring groove to reduce the friction force between the inner side of the cap body and the pump body, so that the cap body and the pump body are prevented from being attached; before the pump body is used, the micro holes are formed in the bottoms of the pressure through grooves through sharp objects such as needles, and when the pump body runs, water on the outer side of the cap body enters the pressure through grooves through the micro holes, so that the same pressure on the inner side and the outer side of the cap body is achieved, and the cap body is prevented from being attached to the pump body to block rotation of the rotating shaft. Therefore, the utility model discloses can reduce the frictional force between the cap body and the pump body and the pressure of the inside and outside both sides of balanced protective cap, have the pivoted advantage that prevents that the protective cap from influencing the axis of rotation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a partially enlarged schematic view of a portion B in fig. 3.
In the figure: 1. a cap body; 11. chamfering; 2. a through hole; 3. an inner ring groove; 4. a pressure groove is communicated; 5. a clamping block; 6. an annular projection; 7. a pump body; 8. a rotating shaft; 9. a micro-pore.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a sand-proof protective cap, which comprises a cap body 1.
Referring to fig. 1 and 2, a through hole 2 is formed in the bottom wall of the cap body 1, the cap body 1 is sleeved on a rotating shaft 8 of the pump body 7, the rotating shaft 8 is arranged in the through hole 2 in a penetrating manner, and the bottom wall of the cap body 1 is located on one side far away from the pump body 7; the cap body 1 has joint piece 5 in the inside wall integrated into one piece of through-hole 2, and joint piece 5 is the annular setting, and the inner periphery of joint piece 5 is the cambered surface setting, through the setting of joint piece 5, installs joint piece 5 in axis of rotation 8 to the clamping force that increases the cap body 1 and axis of rotation 8 makes the cap body 1 rotate along with the rotation of axis of rotation 8.
Referring to fig. 3 and 4, an inner annular groove 3 is formed in the inner bottom wall of the cap body 1, the through hole 2 is located in the inner annular groove 3, the through hole 2, the inner annular groove 3 and the cap body 1 are arranged on the same center line, silicone grease is added into the inner annular groove 3, and friction force between the inner side of the cap body 1 and the pump body 7 is reduced through the addition of the silicone grease, so that the cap body 1 and the pump body 7 are prevented from being attached to each other; two pressure through grooves 4 are formed in the inner bottom wall of the cap body 1, the two pressure through grooves 4 are arranged oppositely, the pressure through grooves 4 are located at the bottoms of the inner ring grooves 3 completely or partially, before the pump body 7 is placed into a water well and the like, micro holes 9 are formed in the bottoms of the pressure through grooves 4 through sharp objects such as needles and the like, and the pressure through grooves 4 are communicated with the outside through the micro holes 9; when the pump body 7 operates, water outside the cap body 1 enters the pressure through groove 4 through the micro hole 9, so that the same pressure on the inner side and the outer side of the cap body 1 is realized, and the cap body 1 is prevented from being attached to the pump body 7 to block the rotation of the rotating shaft 8.
An annular bump 6 is integrally formed on the inner side wall of the cap body 1, the end, far away from the inner side wall of the cap body 1, of the annular bump 6 is arranged in a right angle mode, and the right angle position of the annular bump 6 is arranged in an arc surface mode; a chamfer 11 is arranged at the port of the inner side wall of the cap body 1, and the annular convex block 6 is positioned between the chamfer 11 and the inner annular groove 3. Through the setting of chamfer 11, conveniently install this cap body 1 with on the pump body 7 to through the setting of annular lug 6, make annular lug 6 butt on the pump body 7, thereby prevent that the silicone grease from throwing away in the cap body 1.
The implementation principle of the embodiment is as follows: the cap body 1 is sleeved on the rotating shaft 8 of the pump body 7, silicone grease is added into the inner ring groove 3 to reduce the friction force between the inner side of the cap body 1 and the pump body 7, so that the cap body 1 is prevented from being attached to the pump body 7, and the silicone grease is prevented from being thrown out when the cap body 1 and the rotating shaft 8 rotate through the arrangement of the annular convex block 6; before use, the micro-hole 9 is arranged on the pressure through groove 4 through a sharp object such as a needle, when the pump body 7 operates, water on the outer side of the cap body 1 enters the pressure through groove 4 through the micro-hole 9, so that the same pressure on the inner side and the outer side of the cap body 1 is realized, and the cap body 1 is prevented from being attached to the pump body 7 to block the rotation of the rotating shaft 8.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a sand control protective cap, is including setting up in the cap body (1) of the pump body (7), through-hole (2) that are used for axis of rotation (8) to pass are seted up in the cap body (1), its characterized in that, seted up inner ring groove (3) in cap body (1), cap body (1) in the tank bottom of inner ring groove (3) has been seted up and has been led to pressure groove (4), be provided with on the cap body (1) with lead to pressure groove (4) and external micro hole (9) that communicate.
2. The sand control protective cap as claimed in claim 1, wherein the through-pressure grooves (4) are arranged in a plurality, and a plurality of the through-pressure grooves (4) are circumferentially arrayed along the midline of the through-hole (2).
3. The sand control protective cap as claimed in claim 1, wherein the inner circumferential surface of the cap body (1) is provided with a ring-shaped projection (6).
4. The sand control protective cap as claimed in claim 3, wherein the inner circumference of the annular bump (6) is cambered.
5. The sand control protective cap according to claim 4, wherein the cap body (1) is provided with a chamfer (11), and the annular bump (6) is located between the chamfer (11) and the inner annular groove (3).
6. The sand-proof protective cap according to claim 1, wherein the cap body (1) is provided with a clamping block (5) on the inner wall of the through hole (2).
7. The sand control protective cap as claimed in claim 6, wherein the clamping block (5) is arranged in a ring shape.
8. The sand control protective cap as claimed in claim 7, wherein the inner circumference of the clamping block (5) is arranged in a cambered surface.
9. The sand control protective cap as claimed in claim 1, wherein the cap body (1) is made of elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020783067.8U CN212672396U (en) | 2020-05-12 | 2020-05-12 | Sand prevention protective cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020783067.8U CN212672396U (en) | 2020-05-12 | 2020-05-12 | Sand prevention protective cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212672396U true CN212672396U (en) | 2021-03-09 |
Family
ID=74814571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020783067.8U Expired - Fee Related CN212672396U (en) | 2020-05-12 | 2020-05-12 | Sand prevention protective cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212672396U (en) |
-
2020
- 2020-05-12 CN CN202020783067.8U patent/CN212672396U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210309 |