CN211145086U - Connecting structure for shaft handle inside screw pump - Google Patents
Connecting structure for shaft handle inside screw pump Download PDFInfo
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- CN211145086U CN211145086U CN201922291667.2U CN201922291667U CN211145086U CN 211145086 U CN211145086 U CN 211145086U CN 201922291667 U CN201922291667 U CN 201922291667U CN 211145086 U CN211145086 U CN 211145086U
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- hole
- shaft handle
- pin
- pinhole
- fastening screw
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Abstract
The utility model discloses an inside shaft handle connection structure of screw pump, including the shaft handle body, the one end of shaft handle body is equipped with connecting hole and pinhole, and the other end is equipped with the mounting hole, the connecting hole is the axial setting, the pinhole with the connecting hole is crossing and runs through the shaft handle body, install the pin in the pinhole, the pin is equipped with the screw hole along the axial, threaded hole internal connection has fastening screw, fastening screw's head diameter is less than its body diameter, be equipped with on the shaft handle body rather than assorted bush, the bush can cover the pinhole, and have with fastening screw's head assorted through-hole. The utility model provides the high steadiness that screw rod pump shaft stalk portion is connected to make its installation and dismantlement of being convenient for.
Description
Technical Field
The utility model relates to a technical field of screw pump shaft, concretely relates to inside shaft handle portion connection structure of screw pump.
Background
The internal shaft of the existing screw pump is connected with the following two modes: the first method is that after a pin is inserted, two ends of the pin are roughened, the method is not firm, but is difficult to disassemble, and the pin can be taken out only after the end part of the pin is knocked off by a rotary head; the second method is a hot sleeve method, in which the shaft and the outer sleeve are heated and then tightly fitted and pressed, and the method also has the problem of difficulty in disassembly, wherein the shaft is heated first and then separated by knocking.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of background art, the utility model provides an inside axostylus axostyle portion connection structure of screw pump, the technical problem of its solution is how to improve the steadiness that screw pump shaft stalk portion connects to make it be convenient for install and dismantle.
For solving the technical problem, the utility model provides a following technical scheme:
the connecting structure comprises a shaft handle body, wherein one end of the shaft handle body is provided with a connecting hole and a pin hole, the other end of the shaft handle body is provided with a mounting hole, the connecting hole is axially arranged, the pin hole is intersected with the connecting hole and penetrates through the shaft handle body, a pin is mounted in the pin hole, a threaded hole is formed in the pin along the axial direction, a fastening screw is connected in the threaded hole, the diameter of the head of the fastening screw is smaller than the diameter of the body of the fastening screw, a bushing matched with the shaft handle body is arranged on the shaft handle body, and the bushing can cover the pin hole and is provided with a through hole matched with the head of the fastening screw.
One end of the mandrel body is axially provided with two symmetrical mounting holes.
Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses an internal shaft of screw pump is connected firmly, can guarantee that no screw or other foreign matters drop, does not have thing such as metal fillings to produce, can also realize convenient installation and dismantlement function, and the installation is firm, can prevent effectively that fastening screw from droing.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of a first step in the installation of the present invention;
FIG. 2 is a schematic view of a second step of the present invention during installation;
fig. 3 is a schematic view of a third step in the installation of the present invention;
fig. 4 is a schematic view of the fastening screw and pin connection of the present invention.
Detailed Description
As shown in the drawings, the internal shank connecting structure of the screw pump in the present embodiment includes a shank body 1, one end of the shaft handle body 1 is provided with a connecting hole 12 and a pin hole, the other end is provided with a mounting hole 11, the connecting hole 12 is axially arranged and is mainly used for connecting the fixed shaft 2, the fixed shaft 2 is also provided with a fixing hole corresponding to the pin hole, the pin hole is intersected with the connecting hole and penetrates through the shaft handle body 1, a pin 3 is arranged in the pin hole, the pin 3 is provided with a threaded hole along the axial direction, a fastening screw 4 is connected in the threaded hole, the top surface of the fastening screw 4 can be flush with the top surface of the pin 3 when the fastening screw 4 is screwed into the pin 3, the diameter of the head of the fastening screw 4 is smaller than that of the shank, a bush 5 matched with the shank body 1 is arranged on the shank body 1, the bushing 5 may cover the pin hole and has a through hole 51 matching the head of the fastening screw 4. The bush 5 serves to prevent the pin 3 from falling off, so that the fixed shaft 2 and the shank body 1 are connected together, and serves to prevent the bush 5 from sliding in the axial direction after the head of the fastening screw 4 in the threaded hole is screwed out upward and enters the through hole 51, so that the bush 5 firmly connects the fixed shaft 2 and the shank body 1.
In this embodiment, two symmetrical mounting holes 11 are axially formed at one end of the mandrel body 1.
When the installation is carried out, firstly, the fixing shaft 2 is embedded into the connecting hole 12 of the shaft handle body 1 until the fixing hole of the fixing shaft 2 is aligned with the pin hole of the shaft handle body 1, then the fastening screw 4 is screwed into the threaded hole of the pin 3 and the end surface of the fastening screw is flush with the end surface of the pin 3, and then the pin 3 is installed in the pin hole of the shaft handle body 1; secondly, sleeving the bush 5 on the shaft handle body 1 and covering the pin hole; and thirdly, the head of the fastening screw 4 is screwed out and is arranged in the through hole 51 of the bush 5, and the head of the fastening screw 4 is smaller than the shank of the fastening screw, so that the shank of the fastening screw 4 is clamped below the bush 5, the fastening screw 4 effectively prevents the bush 5 from axially moving, and the bush 5 can be stably arranged on the shaft handle body 1. When the device is disassembled, the operation is reversed.
To sum up, the utility model discloses a screw pump internal shaft is connected firmly, and compares traditional connected mode and can guarantee that no screw or other foreign matters drop, does not have things such as metal fillings to produce, can also realize convenient installation and dismantlement function, and the installation is firm, can prevent effectively that fastening screw from droing.
Claims (2)
1. Inside shaft handle portion connection structure of screw pump, including the shaft handle body, its characterized in that: the one end of axostylus axostyle body is equipped with connecting hole and pinhole, and the other end is equipped with the mounting hole, the connecting hole is the axial setting, the pinhole with the connecting hole is crossing and runs through the axostylus axostyle body, install the pin in the pinhole, the pin is equipped with the screw hole along the axial, threaded hole is connected with fastening screw, fastening screw's head diameter is less than its body diameter, be equipped with on the axostylus axostyle body rather than assorted bush, the bush can cover the pinhole to have with fastening screw's head assorted through-hole.
2. A screw pump internal shaft shank connecting structure according to claim 1, wherein: one end of the mandrel body is axially provided with two symmetrical mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922291667.2U CN211145086U (en) | 2019-12-18 | 2019-12-18 | Connecting structure for shaft handle inside screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922291667.2U CN211145086U (en) | 2019-12-18 | 2019-12-18 | Connecting structure for shaft handle inside screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145086U true CN211145086U (en) | 2020-07-31 |
Family
ID=71751075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922291667.2U Active CN211145086U (en) | 2019-12-18 | 2019-12-18 | Connecting structure for shaft handle inside screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145086U (en) |
-
2019
- 2019-12-18 CN CN201922291667.2U patent/CN211145086U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |