CN212071746U - Open ratchet wrench - Google Patents
Open ratchet wrench Download PDFInfo
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- CN212071746U CN212071746U CN202020846809.7U CN202020846809U CN212071746U CN 212071746 U CN212071746 U CN 212071746U CN 202020846809 U CN202020846809 U CN 202020846809U CN 212071746 U CN212071746 U CN 212071746U
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- wrench
- wrench head
- ratchet
- pawl
- head
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Abstract
An open ratchet wrench. To ratchet wrenches, and more particularly to open ratchet wrenches. The open ratchet wrench has the advantages of compact and reasonable structure, simplicity in processing, simplicity and convenience in operation and capability of improving the working efficiency. Comprises a ratchet wheel and pawl transmission mechanism, a wrench body, a wrench head, a first drive plate and a second drive plate; the wrench body, the wrench head, the first drive plate and the second drive plate are respectively provided with adaptive openings; the ratchet wheel and pawl transmission mechanism is positioned between the wrench head and the wrench body; the wrench head rotates in the wrench body in a single direction through the ratchet wheel and pawl transmission mechanism; the wrench head is rotatably arranged on the wrench head through a first driving plate and a second driving plate which are fixedly arranged above and below the wrench head. The utility model has the characteristics of compact structure is reasonable, processing is simple, easy and simple to handle etc.
Description
Technical Field
The utility model relates to a ratchet spanner especially relates to opening ratchet spanner.
Background
The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws and nuts by utilizing the lever principle; usually, an opening or a trepanning for clamping the bolt or the nut is arranged at one end or two ends of the handle part, and when the handle part is used, external force is applied to the handle part along the rotation direction of the thread, so that the bolt or the nut can be screwed; wrenches are typically made of carbon structural steel or alloy structural steel.
The open end wrench is one of wrenches, and generally comprises an adjustable wrench and a solid wrench, and is characterized in that an opening is formed in the end part of the open end wrench and used for clamping a bolt or a nut; the solid wrench has fixed specification and large maximum torque force, but needs to take out the open end wrench from the bolt or the nut after pulling a certain angle, and clamps the bolt or the nut again after rotating to a certain angle, so that the operation is inconvenient, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above problem, provide a compact structure is reasonable, processing is simple, easy and simple to handle, promotes work efficiency's opening ratchet spanner.
The technical scheme of the utility model is that: comprises a ratchet wheel and pawl transmission mechanism, a wrench body, a wrench head, a first drive plate and a second drive plate;
the wrench body, the wrench head, the first drive plate and the second drive plate are respectively provided with adaptive openings;
the ratchet wheel and pawl transmission mechanism is positioned between the wrench head and the wrench body; the wrench head rotates in the wrench body in a single direction through the ratchet wheel and pawl transmission mechanism;
the wrench head is rotatably arranged on the wrench head through a first driving plate and a second driving plate which are fixedly arranged above and below the wrench head.
The first driving plate is fixedly connected with the wrench head through a first bolt.
The driving plate I is fixedly connected with the wrench head through a clamp spring I;
the top of the wrench head is provided with a first connecting part matched with the first driving plate;
a first clamping hole matched with the first clamping spring is formed in the first connecting part;
a first clamping groove matched with the first clamping spring is formed in the inner side wall of the first driving plate;
the first snap spring enables the first driving plate to be fixedly connected to the top of the wrench head through the first clamping hole and the first clamping groove.
And the second driving plate is fixedly connected with the wrench head through a second bolt.
The second driving plate is fixedly connected with the wrench head through a second clamping spring;
the bottom of the wrench head is provided with a second connecting part matched with the second driving plate;
a second clamping hole matched with the second clamping spring is formed in the second connecting part;
a second clamping groove matched with the second clamping spring is formed in the inner side wall of the second driving plate;
and the second snap spring enables the second driving plate to be fixedly connected to the bottom of the wrench head through the second clamping hole and the second clamping groove.
The wrench head and the second driving plate are integrally formed and fixedly connected.
The ratchet wheel and pawl transmission mechanism comprises a spring seat, a spring and a pawl;
the wrench body is provided with an accommodating groove matched with the ratchet wheel and pawl transmission mechanism;
the ratchet wheel and pawl transmission mechanism is limited in the accommodating groove and is positioned between the wrench body and the wrench head;
the outer ring of the wrench head is provided with a ratchet matched with the pawl;
the spring is positioned between the spring seat and the pawl, so that the pawl is connected with the ratchet on the wrench head.
The utility model comprises a ratchet and pawl transmission mechanism, a wrench body, a wrench head, a first drive plate and a second drive plate; the ratchet wheel and pawl transmission mechanism is positioned between the wrench head and the wrench body; the wrench head rotates in a single direction in the wrench body through the ratchet wheel and pawl transmission mechanism; the wrench head is rotatably arranged on the wrench head through a first driving plate and a second driving plate which are fixedly arranged above and below the wrench head. When the wrench is finished working and the opening of the wrench head and the opening of the plate body are not in the same area, the first driving plate or the second driving plate is reversed by utilizing the characteristics of the ratchet wheel and the pawl, so that the opening of the wrench head and the opening of the plate body are in the same area, and the wrench is convenient to withdraw from the bolt. The utility model has the characteristics of compact structure is reasonable, processing is simple, easy and simple to handle etc.
Drawings
Figure 1 is a schematic structural view of the present invention,
FIG. 2 is a schematic exploded perspective view of a first embodiment of the present invention,
figure 3 is an exploded perspective view of a second embodiment of the present invention,
figure 4 is an exploded perspective view of a third embodiment of the present invention,
figure 5 is a schematic perspective view of the ratchet-pawl drive mechanism,
FIG. 6 is a schematic view of the ratchet-pawl drive mechanism in connection with the wrench head;
in the figure, 1 is a wrench body, 2 is a wrench head, 3 is a first drive plate, 4 is a first snap spring, 5 is a pawl, 6 is a spring, and 7 is a spring seat.
Detailed Description
Example one
The embodiment is shown in fig. 1-2, and comprises a ratchet and pawl transmission mechanism, a wrench body 1, a wrench head 2, a first drive plate 3 and a second drive plate;
the wrench body 1, the wrench head 2, the first drive plate 3 and the second drive plate are respectively provided with adaptive openings; the arrangement of the opening is convenient for the clamping of the nut or the bolt head;
the ratchet wheel and pawl transmission mechanism is positioned between the wrench head 2 and the wrench body 1; the wrench head 2 rotates in one direction in the wrench body 1 through the ratchet wheel and pawl transmission mechanism;
the wrench head 2 is rotatably arranged on the wrench head 2 through a first dial plate 3 and a second dial plate which are fixedly arranged up and down, namely, the limitation of the up-and-down (taking the direction of fig. 1 as a reference direction) stroke of the wrench head 2 on the wrench body 1 is limited through the first dial plate 3 and the second dial plate.
The first drive plate 3 is fixedly arranged at the top of the wrench head 2 and is positioned above the wrench body 1; the second driving plate is fixedly arranged at the bottom of the wrench head 2 and is positioned below the wrench head 2.
The driving plate I3 is fixedly connected with the wrench head 2 through a bolt I.
The second driving plate is fixedly connected with the wrench head 2 through a second bolt.
The ratchet wheel and pawl transmission mechanism comprises a spring seat 7, a spring 6 and a pawl 5;
the wrench body 1 is provided with an accommodating groove matched with the ratchet wheel and pawl transmission mechanism;
the ratchet wheel and pawl transmission mechanism is limited in the accommodating groove and is positioned between the wrench body 1 and the wrench head 2;
the outer ring of the wrench head 2 is provided with a ratchet matched with the pawl 5;
the spring 6 is positioned between the spring seat 7 and the pawl 5, so that the pawl 5 is in fit connection with the ratchet on the wrench head 2. In actual production, two sets of ratchet and pawl transmission mechanisms are independently arranged at intervals, so that the problem that the wrench fails when an opening in the wrench head rotates to one pawl is solved.
In the present case, the number of the ratchets on the outer ring of the wrench head 2 is 72, the rotation angle can be controlled to be about 5 degrees, and in addition, the number of the ratchets can be set to be 45, 60, 90 and 100.
The ratchet and pawl transmission mechanism belongs to the prior art, and for example, the applicant of the present application applies for a utility model patent with the authorization number of 2018201919233 in 2018, 2.2.8.s. The parts such as the pawl 5, the spring 6, the spring seat 7 and the like are also adopted in the scheme, and the functions are the same as those in the scheme.
In this embodiment, the wrench head 2, the first dial 3 and the second dial are fixed to the wrench head by bolts. The driving plate in the scheme mainly has two functions:
1) fixing the wrench head 2 on the plate body;
2) when the wrench is finished working and the opening of the wrench head 2 and the opening of the plate body are not in the same area, the first driving plate 3 or the second driving plate is reversed by utilizing the characteristics of the ratchet wheel and the pawl, so that the opening of the wrench head 2 and the opening of the plate body are in the same area, and the wrench is convenient to withdraw the bolt.
Example two
In this embodiment, as shown in fig. 3, the first driving plate 3 is fixedly connected with the wrench head 2 through a first snap spring 4;
the top of the wrench head 2 is provided with a first connecting part matched with the first driving plate 3; the outer diameter of the first connecting part is matched with the inner diameter of the first driving plate 3;
a first clamping hole matched with the first clamping spring 4 is formed in the first connecting part;
a first clamping groove matched with the first clamping spring 4 is formed in the inner side wall of the first driving plate 3;
the first snap spring 4 enables the first driving plate 3 to be fixedly connected to the top of the wrench head 2 through the first clamping hole and the first clamping groove.
The second driving plate is fixedly connected with the wrench head 2 through a second clamping spring;
the bottom of the wrench head 2 is provided with a second connecting part matched with the second driving plate; the outer diameter of the second connecting part is matched with the inner diameter of the second driving plate;
a second clamping hole matched with the second clamping spring is formed in the second connecting part; in the scheme, the first clamping hole and the second clamping hole are through holes respectively and correspond to the first clamping groove and the second clamping groove respectively, and the first clamping groove and the second clamping groove do not need to be communicated internally and externally;
a second clamping groove matched with the second clamping spring is formed in the inner side wall of the second driving plate;
and the second snap spring enables the second driving plate to be fixedly connected to the bottom of the wrench head 2 through the second clamping hole and the second clamping groove.
EXAMPLE III
In this embodiment, as shown in fig. 4, the wrench head 2 and the second dial are integrally formed and fixedly connected.
In this embodiment, the wrench head 2 and the first driving plate 3 are fixed by the first snap spring 4, and an integral structure is arranged between the bottom of the wrench head 2 and the second driving plate.
The disclosure of the present application also includes the following points:
(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;
(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;
the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.
Claims (7)
1. The open ratchet wrench is characterized by comprising a ratchet and pawl transmission mechanism, a wrench body, a wrench head, a first drive plate and a second drive plate;
the wrench body, the wrench head, the first drive plate and the second drive plate are respectively provided with adaptive openings;
the ratchet wheel and pawl transmission mechanism is positioned between the wrench head and the wrench body; the wrench head rotates in the wrench body in a single direction through the ratchet wheel and pawl transmission mechanism;
the wrench head is rotatably arranged on the wrench head through a first driving plate and a second driving plate which are fixedly arranged above and below the wrench head.
2. The open ratchet wrench of claim 1, wherein the first catch plate is fixedly coupled to the wrench head by a first bolt.
3. The open ratchet wrench of claim 1, wherein the first catch plate is fixedly connected to the wrench head by a first snap spring;
the top of the wrench head is provided with a first connecting part matched with the first driving plate;
a first clamping hole matched with the first clamping spring is formed in the first connecting part;
a first clamping groove matched with the first clamping spring is formed in the inner side wall of the first driving plate;
the first snap spring enables the first driving plate to be fixedly connected to the top of the wrench head through the first clamping hole and the first clamping groove.
4. The open ratchet wrench of claim 1, wherein the second catch plate is fixedly connected to the wrench head by a second bolt.
5. The open ratchet wrench of claim 1, wherein the second catch plate is fixedly connected to the wrench head by a second snap spring;
the bottom of the wrench head is provided with a second connecting part matched with the second driving plate;
a second clamping hole matched with the second clamping spring is formed in the second connecting part;
a second clamping groove matched with the second clamping spring is formed in the inner side wall of the second driving plate;
and the second snap spring enables the second driving plate to be fixedly connected to the bottom of the wrench head through the second clamping hole and the second clamping groove.
6. The open ratchet wrench of claim 1, wherein the wrench head is fixedly connected to the second drive plate by integral molding.
7. The open ratchet wrench of claim 1, wherein the ratchet-pawl drive mechanism includes a spring seat, a spring, and a pawl;
the wrench body is provided with an accommodating groove matched with the ratchet wheel and pawl transmission mechanism;
the ratchet wheel and pawl transmission mechanism is limited in the accommodating groove and is positioned between the wrench body and the wrench head;
the outer ring of the wrench head is provided with a ratchet matched with the pawl;
the spring is positioned between the spring seat and the pawl, so that the pawl is connected with the ratchet on the wrench head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846809.7U CN212071746U (en) | 2020-05-19 | 2020-05-19 | Open ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846809.7U CN212071746U (en) | 2020-05-19 | 2020-05-19 | Open ratchet wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212071746U true CN212071746U (en) | 2020-12-04 |
Family
ID=73568941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020846809.7U Active CN212071746U (en) | 2020-05-19 | 2020-05-19 | Open ratchet wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212071746U (en) |
-
2020
- 2020-05-19 CN CN202020846809.7U patent/CN212071746U/en active Active
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