CN211820347U - Transmission connecting rod piece with insulating property - Google Patents
Transmission connecting rod piece with insulating property Download PDFInfo
- Publication number
- CN211820347U CN211820347U CN201922047641.3U CN201922047641U CN211820347U CN 211820347 U CN211820347 U CN 211820347U CN 201922047641 U CN201922047641 U CN 201922047641U CN 211820347 U CN211820347 U CN 211820347U
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- Prior art keywords
- shaft
- metal
- outer tube
- sleeve
- pin hole
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 103
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 239000003822 epoxy resin Substances 0.000 claims abstract description 5
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 206010066054 Dysmorphism Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a member is connected in transmission with insulating properties, it includes outer tube and interior axle, interior axle locate inside the outer tube, interior both ends of axle are connecting portion, and the outer tube is the insulating tube, and interior axle is insulating axle, and the connecting portion at interior axle both ends are the metal material, and connecting portion and interior axle rotation restriction, connecting portion and interior synchronous rotation of axle, connecting portion are connected with the adaptor of metal material. The utility model discloses an all be insulating structure inside and outside the pole, accomplished multiple insulation protection. The connecting parts at the two ends of the inner shaft are made of metal, and the adaptor needs to be frequently detached from the connecting parts, so that certain abrasion can be generated, and the epoxy resin inner shaft which is not wear-resistant cannot be directly connected with the adaptor.
Description
Technical Field
The utility model relates to a gardens electric tool technical field, especially the member is connected in the transmission that has insulating properties.
Background
For example, garden tools such as pole saws and lawn mowers need a transmission rod for extending the cutting length, an inner shaft of the rod is directly connected with a transmission part of a motor in a metal mode, and when electricity leaks, the electricity leaks from an all-metal rod body.
If the machine is connected with 220V electricity, the person can be endangered.
If the battery-powered machine leaks electricity, the user can naturally loosen the hand, such as a pole saw, and the head of the machine can be dangerous to directly pound on a person.
Patent No. CN207766888U discloses an insulating structure of the outer tube of the rod body, but the inner shaft inside the rod body is still metal, and when the outer tube is broken, the outer tube is flattened, and the user risks contacting the metal shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem of current, provide a member is connected in transmission with insulating properties.
The purpose of the utility model can be realized by the following technical proposal: the transmission connecting rod piece with insulating property comprises an outer tube and an inner shaft, wherein the inner shaft is arranged in the outer tube, two ends of the inner shaft are connecting parts,
the outer tube is an insulating tube, the inner shaft is an insulating shaft, the connecting parts at two ends of the inner shaft are made of metal, the connecting parts and the inner shaft are limited in rotation, the connecting parts and the inner shaft rotate synchronously, and the connecting parts are connected with the adaptor made of metal.
Furthermore, the connecting part is sleeved at two ends of the inner shaft, a first pin hole is formed in the connecting part, a second pin hole is formed in the inner shaft, and the first pin hole corresponds to the second pin hole in position and is connected with the second pin hole through a first pin body.
Furthermore, the adaptor comprises a metal shaft, one end of the metal shaft is detachably and fixedly connected with the connecting part, and the other end of the metal shaft is provided with a spline sleeve/a spline head/a plane head.
Furthermore, the adaptor comprises a metal shaft, one end of the metal shaft is connected with the connecting part in an inserting mode, a third pin hole is formed in the metal shaft, a fourth pin hole is formed in the connecting part, and the third pin hole corresponds to the fourth pin hole in position and is connected with the fourth pin hole through a second pin body.
Furthermore, the adaptor includes the metal axle, and the metal axle links firmly with connecting portion, is equipped with the axle sleeve in the outer tube, and the outer wall of axle sleeve is fixed on the inner pipe wall of outer tube, and the metal axle passes the axle sleeve, and the axle sleeve is insulating material.
Further, the two ends of the metal shaft are provided with threads, one end of the metal shaft is in threaded connection with the connecting portion, the other end of the metal shaft is in threaded connection with the spline housing, a spring is arranged between the shaft sleeve and the spline housing, and the spring abuts against the radial surfaces of the shaft sleeve and the spline housing.
Further, the metal shaft both ends all are equipped with the screw thread, metal shaft one end and connecting portion threaded connection, the other end and spline housing threaded connection, be equipped with the flat pad of metal on the axle sleeve, the flat pad diameter of metal is less than the internal diameter of outer tube, is equipped with the spring between flat pad of metal and the spline housing, and the spring supports on the radial face of the flat pad of metal and spline housing.
Furthermore, the inner shaft is made of epoxy resin.
Further, the diameter of the inner shaft is 8-24 mm.
Furthermore, the length of the outer pipe is 0.5-2 m.
Further, the metal shaft is hollow inside
The utility model discloses an all be insulating structure inside and outside the pole, accomplished multiple insulation protection. The connecting parts at the two ends of the inner shaft are made of metal, and the adaptor needs to be frequently detached from the connecting parts, so that certain abrasion can be generated, and the epoxy resin inner shaft which is not wear-resistant cannot be directly connected with the adaptor. And the utility model discloses carry out the bracket to the connecting piece with the axle sleeve, prevent once more that the metalwork is close to the inner tube wall of outer tube.
Drawings
Fig. 1 is an outline view of a driving connection rod.
FIG. 2 is a cross-sectional view of the first embodiment.
Fig. 3 is a sectional view schematically showing another embodiment.
Fig. 4 is a sectional structure diagram of the second embodiment.
FIG. 5 is a schematic view of a third sectional structure of the embodiment.
In the figure, an outer tube 1; a spline head 2; an inner shaft 3; a shaft sleeve 4; a connecting portion 5; a first pin body 6; a metal shaft 7; a metal flat pad 8; a spring 9; a spline housing 10; a second pin body 11; a power source housing 12; a tool bit 13.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.
Fig. 1 shows, the utility model discloses an outer tube 1 with interior axle, interior axle locate the outer tube 1 inside, the both ends of interior axle are connecting portion 5, connecting portion 5 are connected with the adaptor. One adaptor is connected with the motor, and the other adaptor is connected with the handpiece cutter. The diameter of the inner shaft is 8-24 mm, and the length of the outer pipe 1 is 0.5-2 m.
In order to prevent electric shock, the outer tube 1 is made of an insulating material, the inner shaft is made of an insulating material, and preferably, the inner shaft is made of an epoxy resin material. There is also a gap for insulation between the inner shaft and the inner wall of the outer tube 1.
Example one
Preferably, the connecting parts 5 at the two ends of the inner shaft are made of metal materials, the connecting parts 5 are sleeved on the inner shaft, and the inner shaft is fixedly connected with the connecting parts 5. Preferably, the connecting portion 5 is provided with a first pin hole, the inner shaft is provided with a second pin hole, and the first pin hole corresponds to the second pin hole in position and is connected through a first pin body 6. More preferably, in order to achieve a more stable connection, the two ends of the inner shaft may be square shafts, and the connecting portion 5 may be a corresponding square hole.
The adaptor is an optional accessory, and particularly, the adaptor and the connecting part 5 can be detached and also can be relatively fixedly connected. Preferably, one of the adapters includes metal shaft 7, and metal shaft 7 both ends all are equipped with the screw thread, and metal shaft 7 one end and connecting portion 5 threaded connection, the other end and spline housing 10 threaded connection. The other adapter also comprises a metal shaft 7, one end of the metal shaft 7 is in threaded connection with the connecting part 5, and the other end of the metal shaft 7 is provided with a spline head 2 integrated with the metal shaft 7.
The diameters of the metal shaft 7 and the spline housing 10 are smaller than the inner diameter of the outer tube 1.
Preferably, an insulating sleeve 4 is provided in the outer tube 1, for example, the sleeve 4 is made of rubber, and the outer wall of the sleeve 4 is fixed to the inner wall of the outer tube 1 by pressing. The center of the shaft sleeve 4 is provided with a hole, the metal shaft 7 is inserted into the hole, and the shaft sleeve 4 prevents the metal shaft 7 from deviating to the inner wall of the outer tube 1 on one side. Preferably, the diameter of the hole is the same as the diameter of the metal shaft 7.
Preferably, a spring 9 is arranged between the shaft sleeve 4 and the spline sleeve 10, and the spring 9 is abutted against the radial surfaces of the shaft sleeve 4 and the spline sleeve 10. More preferably, the shaft sleeve 4 is provided with a metal flat pad 8, the diameter of the metal flat pad 8 is smaller than the inner diameter of the outer tube 1, an insulation gap is reserved, a spring 9 is arranged between the metal flat pad 8 and the spline housing 10, and the spring 9 abuts against the radial surfaces of the metal flat pad 8 and the spline housing 10. The spring 9 is used for compensating dimensional errors in assembly, for example, the shaft sleeve 4 is connected with a spline of a motor shaft, and the spring 9 can enable the inner shaft to be extruded and pushed towards the other side to be matched more tightly.
The metal shaft 7, the connecting part 5 and the inner shaft of the structure rotate synchronously. During assembly, the inner shaft is inserted into the outer pipe 1, the two ends of the inner shaft are plugged into the shaft sleeve 4, the metal shaft 7 is inserted into the shaft sleeve 4, the metal shaft 7 is in threaded connection with the connecting part 5 on the inner shaft, then the metal flat gasket 8 and the spring 9 are inserted, and finally the spline sleeve 10 is in threaded connection.
Due to the limitation of the screw connection, the inner shaft is preferably selected in one direction, and the metal shaft 7 is easily loosened by rotating in the opposite direction.
The other scheme is that the metal shaft 7 is inserted into the connecting part 5, a third pin hole is formed in the metal shaft 7, a fourth pin hole is formed in the connecting part 5, and the third pin hole corresponds to the fourth pin hole in position and is connected with the fourth pin hole through a second pin body 11. The spline housing 10/spline head 2 and the metal shaft 7 are in threaded connection, during assembly, the inner shaft is connected with the metal shaft 7 and inserted into the outer tube 1, then the shaft sleeves 4 are plugged outside the metal shafts 7 at two ends, then the metal flat gasket 8 and the spring 9 are inserted, and finally the spline housing 10/spline head 2 is in threaded connection.
The metal shaft 7 is hollow inside for weight reduction. The metal shaft 7 may be provided with a through hole along the axial direction, or the metal shaft 7 may be penetrated through the middle, solid rod bodies are provided at both ends, and the solid rod bodies at both ends are welded with the section penetrated through the middle.
Example two
The adaptor is a selectable fitting, and the adaptor and the connecting part 5 can be detached and also can be relatively fixedly connected. Preferably, one of the adapters includes metal shaft 7, spline housing 10 of metal shaft 7 one end formula as an organic whole, and metal shaft 7 other end and connecting portion 5 threaded connection, another adapter also includes metal shaft 7, and metal shaft 7 one end and connecting portion 5 threaded connection, the other end is equipped with the integrative spline head 2 with metal shaft 7.
The diameters of the metal shaft 7, the spline housing 10 and the spline head 2 are all smaller than the inner diameter of the outer tube 1.
Preferably, an insulating sleeve 4 is provided in the outer tube 1, for example, the sleeve 4 is made of rubber, and the outer wall of the sleeve 4 is fixed to the inner wall of the outer tube 1 by pressing. The center of the shaft sleeve 4 is provided with a hole, the metal shaft 7 is inserted into the hole, and the shaft sleeve 4 prevents the metal shaft 7 from deviating to the inner wall of the outer tube 1 on one side.
Preferably, a spring 9 is arranged between the shaft sleeve 4 and the spline sleeve 10, the diameter of the spline sleeve 10 is larger than that of the metal shaft 7, and the spring 9 is abutted against the radial surfaces of the shaft sleeve 4 and the spline sleeve 10. More preferably, the shaft sleeve 4 is provided with a metal flat pad 8, the diameter of the metal flat pad 8 is smaller than the inner diameter of the outer tube 1, an insulation gap is reserved, a spring 9 is arranged between the metal flat pad 8 and the spline housing 10, and the spring 9 abuts against the radial surfaces of the metal flat pad 8 and the spline housing 10. The spring 9 is used for compensating dimensional errors in assembly, for example, the shaft sleeve 4 is connected with a spline of a motor shaft, and the spring 9 can enable the inner shaft to be extruded and pushed towards the other side to be matched more tightly.
The metal shaft 7, the connecting part 5 and the inner shaft of the structure rotate synchronously. During assembly, an inner shaft is inserted into the outer pipe 1, two ends of the inner shaft are plugged into the shaft sleeve 4, then the metal flat gasket 8 and the spring 9 are inserted, and finally the metal rod is inserted into the spring 9, the metal flat gasket 8, the shaft sleeve 4 and the connecting part 5 and is in threaded connection.
EXAMPLE III
Connecting portion 5 links firmly with interior axle, is equipped with flat hole or dysmorphism hole on the connecting portion 5, and 7 one end of metal axle are equipped with the corresponding shape of corresponding with the flat hole or the dysmorphism jogged joint of connecting portion 5, and the other end of metal axle 7 is spline housing 10 or spline head 2. In this embodiment, the metal shaft 7 has no axial limit, only a rotational limit. The outer tube 1 is inserted on the tool bit 13, the tool bit 13 and the outer tube 1 are fixed through screws or pins, and after the outer tube 1 and the tool bit 13 are fixed, the spline head 2 on the metal shaft 7 is pressed against the transmission position of the tool bit 13 to form axial limiting.
Similarly, the outer tube 1 is inserted on the power source shell 12, the power source shell 12 and the outer tube 1 are fixed through screws or pins, and after the outer tube 1 and the power source shell 12 are fixed, the spline sleeve 10 on the metal shaft 7 is pushed against a spline connected with a motor to form axial limiting.
The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The transmission connecting rod piece with insulating property comprises an outer tube and an inner shaft, wherein the inner shaft is arranged in the outer tube, two ends of the inner shaft are connecting parts,
the outer tube is an insulating tube, the inner shaft is an insulating shaft, the connecting parts at two ends of the inner shaft are made of metal, the connecting parts and the inner shaft are limited in rotation, the connecting parts and the inner shaft rotate synchronously, and the connecting parts are connected with the adaptor made of metal.
2. The transmission connection rod piece with insulating property of claim 1, wherein the connection part is sleeved at two ends of the inner shaft, the connection part is provided with a first pin hole, the inner shaft is provided with a second pin hole, and the first pin hole and the second pin hole are corresponding in position and connected through a first pin body.
3. The transmission connection rod piece with insulating property of claim 1, wherein the adapter piece comprises a metal shaft, one end of the metal shaft is detachably and fixedly connected with the connecting part, and the other end of the metal shaft is provided with a spline sleeve/a spline head/a flat key head.
4. The transmission connection rod piece with insulating property of claim 1, wherein the adapter piece comprises a metal shaft, one end of the metal shaft is inserted into the connection part, a third pin hole is arranged on the metal shaft, a fourth pin hole is arranged on the connection part, and the third pin hole corresponds to the fourth pin hole in position and is connected through a second pin body.
5. The transmission connection rod of claim 1, wherein the adapter includes a metal shaft, the metal shaft is fixedly connected to the connection portion, a shaft sleeve is disposed in the outer tube, an outer wall of the shaft sleeve is fixed to an inner wall of the outer tube, the metal shaft passes through the shaft sleeve, and the shaft sleeve is made of an insulating material.
6. The transmission connection rod member with insulating property according to claim 5, wherein the metal shaft is provided with threads at both ends, one end of the metal shaft is connected with the connecting portion in a threaded manner, the other end of the metal shaft is connected with the spline housing in a threaded manner, and a spring is arranged between the shaft sleeve and the spline housing and abuts against the radial surface of the shaft sleeve and the spline housing.
7. The transmission connection rod member with insulating property according to claim 5, wherein the metal shaft is provided with threads at both ends, one end of the metal shaft is connected with the connecting portion in a threaded manner, the other end of the metal shaft is connected with the spline housing in a threaded manner, the shaft sleeve is provided with a metal flat pad, the diameter of the metal flat pad is smaller than the inner diameter of the outer tube, a spring is arranged between the metal flat pad and the spline housing, and the spring abuts against the radial surfaces of the metal flat pad and the spline housing.
8. The transmission connecting rod assembly with insulating property as claimed in claim 1, wherein the inner shaft is made of epoxy resin.
9. The transmission connection rod member with insulation performance according to claim 1, wherein the diameter of the inner shaft is 8-24 mm, and the length of the outer tube is 0.5-2 m.
10. The transmission connection rod piece with the insulation performance according to any one of claims 3 to 7, wherein the metal shaft is hollow inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922047641.3U CN211820347U (en) | 2019-11-21 | 2019-11-21 | Transmission connecting rod piece with insulating property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922047641.3U CN211820347U (en) | 2019-11-21 | 2019-11-21 | Transmission connecting rod piece with insulating property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820347U true CN211820347U (en) | 2020-10-30 |
Family
ID=73027420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922047641.3U Active CN211820347U (en) | 2019-11-21 | 2019-11-21 | Transmission connecting rod piece with insulating property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820347U (en) |
-
2019
- 2019-11-21 CN CN201922047641.3U patent/CN211820347U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |