CN213859100U - Multifunctional working head quick replacement mechanism for electric tool - Google Patents
Multifunctional working head quick replacement mechanism for electric tool Download PDFInfo
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- CN213859100U CN213859100U CN202022982338.5U CN202022982338U CN213859100U CN 213859100 U CN213859100 U CN 213859100U CN 202022982338 U CN202022982338 U CN 202022982338U CN 213859100 U CN213859100 U CN 213859100U
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- main shaft
- shaft
- sleeve
- steel balls
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Abstract
The utility model relates to a multifunctional working head quick replacement mechanism for an electric tool, which comprises a reciprocating rod, a connecting shaft and a quick assembly head mechanism; the quick-assembling head mechanism comprises a main shaft, a sleeve and at least one steel ball; the rear end of the main shaft is fixedly connected with the reciprocating rod, the front end of the main shaft is provided with a connecting hole, a connecting section at the rear end of the connecting shaft is inserted into the connecting hole, the connecting section of the connecting shaft is provided with at least one ring of annular grooves for embedding steel balls, a plurality of ball holes are circumferentially arranged at the hole section part of the main shaft connecting hole, the steel balls are arranged in the ball holes, the sleeve is sleeved outside the main shaft and is suitable for moving back and forth along the main shaft, and the inner wall of the sleeve is provided with a limiting rib; when the limiting ribs move to the outside of the steel balls, the steel balls are suitable to be limited in the ring grooves of the connecting shaft. Firm in connection, it is convenient to dismantle, changes different connecting axles and working heads according to operational environment and the demand of difference to resources are saved, a tractor serves several purposes.
Description
Technical Field
The utility model relates to an electric tool field, concretely relates to multi-functional working head quick replacement mechanism for electric tool.
Background
Among the electric tools on the market, the reciprocating saw and the jig saw are the most representative reciprocating tools. They do only have to grip a blade, which limits their ability to perform only cutting functions. The functionality is single and different tools are required for different processing of the article.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the multifunctional quick working head replacing mechanism for the electric tool solves the problems that a connecting shaft of the electric tool is inconvenient to disassemble and different connections cannot be replaced according to different working environments and requirements in the prior art.
The utility model provides a technical scheme that its technical problem adopted is:
a multifunctional working head quick replacement mechanism for an electric tool comprises
The reciprocating rod, the connecting shaft and the quick assembling head mechanism;
the quick-assembling head mechanism comprises a main shaft, a sleeve and at least one steel ball;
the rear end of the main shaft is fixedly connected with the reciprocating rod, the front end of the main shaft is provided with a connecting hole, a connecting section at the rear end of the connecting shaft is inserted into the connecting hole, the connecting section of the connecting shaft is provided with at least one ring of annular grooves for embedding steel balls, a plurality of ball holes are circumferentially arranged at the hole section part of the main shaft connecting hole, the steel balls are arranged in the ball holes, the sleeve is sleeved outside the main shaft and is suitable for moving back and forth along the main shaft, and the inner wall of the sleeve is provided with a limiting rib; when the limiting ribs move to the outside of the steel balls, the steel balls are suitable to be limited in the ring grooves of the connecting shaft.
Furthermore, a clamp spring is arranged at the front end of the main shaft, a rear step is formed outside the main shaft, a front retaining ring is arranged on the inner wall of the sleeve, and a spring is arranged between the rear step and the limiting rib;
when the retaining ring of the sleeve is abutted to the clamp spring, the limiting rib moves to the outside of the steel ball.
Furthermore, a circle of first tooth grooves are formed in an orifice of the main shaft connecting hole, and a circle of second tooth grooves are formed in the connecting shaft; when the connecting shaft and the main shaft are inserted, the first tooth groove and the second tooth groove are meshed with each other.
Furthermore, the quantity of steel ball is 3.
Furthermore, two rings of ring grooves are arranged on the connecting shaft.
The utility model has the advantages that:
the utility model provides an electric tool is with multi-functional working head quick replacement mechanism, firm in connection dismantles the convenience, changes different connecting axle and working head according to operational environment and the demand of difference to resources are saved, a tractor serves several purposes.
The mechanism is suitable for a reciprocating machine type, and different working heads are matched after different connecting shafts are replaced, so that different functions are realized.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of a power tool;
FIG. 2 is a schematic view of a quick change mechanism for a multi-function working head for a power tool;
FIG. 3 is a schematic view of the connecting shaft when the connecting shaft is not completely installed;
FIG. 4 is a schematic view of the connection shaft as it is fully installed;
FIG. 5 is a half sectional view of a multi-function head quick change mechanism for an electric power tool;
the reciprocating rod comprises a reciprocating rod 1, a main shaft 2, a main shaft 21, a first tooth groove 3, a connecting shaft 31, a ring groove 32, a second tooth groove 4, a sleeve 41, a limiting rib 42, a front retaining ring 5, a steel ball 6, a spring 7 and a clamp spring.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 5, a multifunctional working head quick-change mechanism for an electric tool comprises a reciprocating rod 1, a connecting shaft 3 and a quick-mounting head mechanism; the fast-assembling head mechanism comprises a main shaft 2, a sleeve 4 and at least one steel ball 5.
The rear end of the main shaft 2 is fixedly connected with the reciprocating rod 1, the front end of the main shaft 2 is provided with a connecting hole, the connecting section at the rear end of the connecting shaft 3 is inserted into the connecting hole, the connecting section of the connecting shaft 3 is provided with at least one ring of annular grooves 31 for embedding steel balls 5, the hole section part of the connecting hole of the main shaft 2 is circumferentially provided with a plurality of ball holes, the steel balls 5 are arranged in the ball holes, the sleeve 4 is sleeved outside the main shaft 2, the sleeve 4 is suitable for moving back and forth along the main shaft 2, and the inner wall of the sleeve 4 is provided with a limiting rib 41; when the limiting rib 41 moves to the outside of the steel ball 5, the steel ball 5 is suitable to be limited in the ring groove 31 of the connecting shaft 3.
In this embodiment, the front end of the main shaft 2 is provided with a clamp spring 7, a rear step is formed outside the main shaft 2, the inner wall of the sleeve 4 is provided with a front baffle ring 42, and a spring 6 is arranged between the rear step and the limiting rib 41; when the stop ring of the sleeve 4 is abutted against the snap spring 7, the limiting rib 41 is moved to the outside of the steel ball 5.
In this embodiment, a circle of first tooth grooves 21 is arranged at an orifice of a connecting hole of the main shaft 2, and a circle of second tooth grooves 32 is arranged on the connecting shaft 3; when the connecting shaft 3 and the main shaft 2 are inserted, the first tooth groove 21 and the second tooth groove 32 are engaged with each other.
In this embodiment, the number of the steel balls 5 is 3. 3 steel balls 5 can realize stable clamping between the main shaft 2 and the connecting shaft 3.
In this embodiment, the connecting shaft 3 is provided with two rings of ring grooves 31. When the first ring groove 31 of the connecting shaft 3 is embedded by the steel balls 5, the first tooth groove 21 and the second tooth groove 32 are not meshed, the first tooth groove 21 and the second tooth groove 32 can rotate to adjust the tooth opening position, after the position is adjusted, the connecting shaft 3 is inserted continuously, the steel balls 5 are clamped in the second ring groove 31, the final connection is achieved, and the first tooth groove 21 and the second tooth groove 32 are meshed with each other to limit the relative rotation of the main shaft 2 and the connecting shaft 3.
The utility model discloses multi-functional working head quick replacement mechanism for electric tool when needing to change different working heads, drives sleeve 4 and moves backward, and spring 6 compresses, and spacing muscle 41 leaves steel ball 5, and at this moment, when pulling connecting axle 3, steel ball 5 can be radial movement, and connecting axle 3 can be taken off; then when a new connecting shaft 3 is installed, the rear section of the new connecting shaft 3 is inserted into the connecting hole of the main shaft 2, when the connecting shaft 3 is inserted into the bottom of the connecting hole, the steel balls 5 are added into the annular groove 31, the sleeve 4 is reset forwards under the action of the spring 6, the limiting ribs 41 move to the outside of the steel balls 5 to continue to limit the radial movement of the steel balls 5, and the tooth grooves of the main shaft 2 and the connecting shaft 3 are meshed with each other, so that the rotation is prevented.
The utility model discloses multi-functional working head quick replacement mechanism for electric tool can realize changing different types of connecting axle 3, and different connecting axles 3 can adapt different types of working heads, is applicable to different operational environment, and a tractor serves several purposes, reduce cost; the working head is clamped by using the steel balls 5, and is convenient to disassemble and assemble.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A multifunctional working head quick replacement mechanism for an electric tool is characterized by comprising
The reciprocating rod, the connecting shaft and the quick assembling head mechanism;
the quick-assembling head mechanism comprises a main shaft, a sleeve and at least one steel ball;
the rear end of the main shaft is fixedly connected with the reciprocating rod, the front end of the main shaft is provided with a connecting hole, a connecting section at the rear end of the connecting shaft is inserted into the connecting hole, the connecting section of the connecting shaft is provided with at least one ring of annular grooves for embedding steel balls, a plurality of ball holes are circumferentially arranged at the hole section part of the main shaft connecting hole, the steel balls are arranged in the ball holes, the sleeve is sleeved outside the main shaft and is suitable for moving back and forth along the main shaft, and the inner wall of the sleeve is provided with a limiting rib; when the limiting ribs move to the outside of the steel balls, the steel balls are suitable to be limited in the ring grooves of the connecting shaft.
2. The multifunctional working head quick replacement mechanism for the electric tool as claimed in claim 1, wherein a snap spring is arranged at the front end of the spindle, a rear step is formed outside the spindle, a front retaining ring is arranged on the inner wall of the sleeve, and a spring is arranged between the rear step and the limiting rib;
when the retaining ring of the sleeve is abutted to the clamp spring, the limiting rib moves to the outside of the steel ball.
3. The multifunctional working head quick replacement mechanism for the electric tool as claimed in claim 1, wherein a circle of first tooth grooves is arranged at an orifice of the spindle connecting hole, and a circle of second tooth grooves is arranged on the connecting shaft; when the connecting shaft and the main shaft are inserted, the first tooth groove and the second tooth groove are meshed with each other.
4. The quick change mechanism for a multi-function working head of an electric tool as claimed in claim 1, wherein the number of the steel balls is 3.
5. The quick change mechanism for a multi-function working head of an electric tool as claimed in claim 1, wherein the connecting shaft is provided with two rings of annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022982338.5U CN213859100U (en) | 2020-12-09 | 2020-12-09 | Multifunctional working head quick replacement mechanism for electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022982338.5U CN213859100U (en) | 2020-12-09 | 2020-12-09 | Multifunctional working head quick replacement mechanism for electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213859100U true CN213859100U (en) | 2021-08-03 |
Family
ID=77067583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022982338.5U Active CN213859100U (en) | 2020-12-09 | 2020-12-09 | Multifunctional working head quick replacement mechanism for electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213859100U (en) |
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2020
- 2020-12-09 CN CN202022982338.5U patent/CN213859100U/en active Active
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