CN212421109U - Open type hollow wrench for narrow space - Google Patents
Open type hollow wrench for narrow space Download PDFInfo
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- CN212421109U CN212421109U CN202021183438.5U CN202021183438U CN212421109U CN 212421109 U CN212421109 U CN 212421109U CN 202021183438 U CN202021183438 U CN 202021183438U CN 212421109 U CN212421109 U CN 212421109U
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- wrench
- open
- hollow
- spanner
- connecting hole
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Abstract
The utility model discloses an open type cavity spanner for narrow and small space, including opening spanner, conversion head, cavity spanner, seted up the connecting hole on the opening spanner, the one end of conversion head and the connecting hole fixed connection of opening spanner, the other end and the working head fixed connection of cavity spanner. According to the open type hollow wrench, the open type wrench is connected with the traditional hollow wrench through the open type wrench, so that the hollow wrench can fasten and dismount a bolt by driving the open type wrench outside the nut, and the problem that the wrench cannot be sleeved on the nut when the traditional hollow wrench meets the space condition that the distance between the center of the bolt and a nearby obstacle is narrow is solved; the problem that the hollow wrench is an inner hexagonal wrench and the connecting hole of the open wrench is an inner square hole, so that the hollow wrench and the open wrench can not be directly connected can be solved by designing the conversion head with the hexagonal shape and the square shape. Simple structure, convenient installation and use, low production and maintenance cost and wide applicability.
Description
Technical Field
The utility model relates to the field of machinary, concretely relates to open type cavity spanner for narrow and small space.
Background
The hollow hydraulic wrench in the prior art is generally used under the condition that the bolt is exposed out of the nut for a long time or the space height is limited. However, the wall thickness of the working head of the conventional hollow hydraulic wrench is thicker than that of the driving sleeve, and if the height space is limited (the driving hydraulic wrench cannot be used), the center distance between the bolt and a nearby obstacle is narrow, so that the situation that the conventional hollow wrench cannot be put into the hollow hydraulic wrench can occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides an open type cavity spanner for narrow and small space can arrange traditional cavity spanner in collocation and use, has solved the problem that traditional cavity spanner can't adapt to narrow and small space effectively, realizes the dismouting of limited bolt nut.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides an open type cavity spanner for narrow and small space, includes opening spanner, crossover head, cavity spanner, the connecting hole has been seted up on the opening spanner, the one end of crossover head and the connecting hole fixed connection of opening spanner, the other end and the working head fixed connection of cavity spanner.
Preferably, an inner square connecting hole is formed in one end, far away from the opening, of the open end wrench, and a center line of the inner square connecting hole is parallel to a center line of the opening.
Preferably, the working head of the hollow wrench is provided with an inner hexagonal socket.
Preferably, the adapter is of a stepped structure, the small-diameter section is an outer square column body which can be matched with the inner square connecting hole of the open wrench, and the large-diameter section is an outer hexagonal column body which can be matched with the inner hexagonal sleeve of the hollow wrench.
Preferably, the conversion head is in clearance fit with the inner square connecting hole and the inner hexagonal sleeve.
Preferably, the end of the small-diameter section of the conversion head is provided with a chamfer, and the center of the large-diameter section is provided with a lightening hole.
Due to the structure, the beneficial effects of the utility model reside in that:
according to the open type hollow wrench, the open type wrench is designed, and is connected with the traditional hollow wrench, so that the nut does not need to be directly sleeved with the hollow wrench, the open type wrench is inserted onto the nut, the hollow wrench can drive the open type wrench to fasten and disassemble a bolt outside the nut, and the problem that the wrench cannot be sleeved on the nut when the traditional hollow wrench meets the condition that the distance between the center of the bolt and a nearby obstacle (such as a flange pipe wall) is narrow is solved; through the conversion head that the design hexagon changes the square, can solve because the cavity spanner is interior hexagonal spanner and the problem that the unable lug connection of both that open end spanner connecting hole leads to for the square. Simple structure, convenient installation and use, low production and maintenance cost and wide applicability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a schematic structural diagram of the switching head of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the present embodiment provides an open type hollow wrench for narrow space, which includes an open wrench 1, a conversion head 2, and a hollow wrench 3, wherein the open wrench 1 is provided with a connecting hole 11, one end of the conversion head 2 is fixedly connected to the connecting hole 11 of the open wrench 1, and the other end is fixedly connected to a working head of the hollow wrench 3.
An inner square connecting hole 11 is formed in one end, far away from the opening, of the open-end wrench 1, and the center line of the inner square connecting hole 11 is parallel to the center line of the opening.
The hollow wrench 3 is a hollow wrench in the prior art and comprises a working head and a power head, the working head is hinged with the power head, an inner hexagonal sleeve 31 is arranged on the working head, and an oil cylinder is arranged in the power head.
In this embodiment, the adapter 2 has a step-like structure, the small diameter section 21 is an outer square column capable of matching with the inner square connecting hole 11 of the open-end wrench 1, and the large diameter section 22 is an outer hexagonal column capable of matching with the inner hexagonal socket 31 of the hollow wrench 3. The conversion head 2 is in clearance fit with the inner square connecting hole 11 and the inner hexagonal sleeve 31.
In this embodiment, the small diameter section 21 of the conversion head 2 has a chamfer 23 at its end, and a lightening hole 24 is formed in the center of the large diameter section 22.
The working principle of the structure is as follows:
because the traditional hollow wrench 3 faces the problem that the wrench cannot be sleeved on the nut when encountering the space condition that the distance between the center of the bolt and a nearby obstacle (such as a flange pipe wall), the embodiment designs an open-ended wrench 1 aiming at the problem, the open-ended wrench 1 is provided with an inner square connecting hole 11 (the inner square connecting hole 11 can be used for mounting a square driving head of an electric wrench at ordinary times), but because the working head of the traditional hollow wrench 3 is a hollow inner hexagonal type, the working head cannot be directly connected with the open-ended wrench 1, the embodiment designs a conversion head 2 for converting the hexagonal into the square, and the conversion head is used for being connected with the open-ended wrench 1. Thus, under the condition that the distance from the center of the bolt used on the flange pipeline to the center of the flange wall is very small, the hollow wrench 3 does not need to be directly sleeved in the nut, the open wrench 1 is inserted on the nut, and the hollow wrench 3 can be used for fastening and dismounting the bolt by driving the open wrench 1 outside the nut. Simple structure, convenient installation and use, low production and maintenance cost and wide applicability.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an open type cavity spanner for narrow and small space which characterized in that: the wrench comprises an open end wrench, a conversion head and a hollow wrench, wherein the open end wrench is provided with a connecting hole, one end of the conversion head is fixedly connected with the connecting hole of the open end wrench, and the other end of the conversion head is fixedly connected with a working head of the hollow wrench.
2. The open-ended hollow wrench of claim 1, wherein: an inner square connecting hole is formed in one end, far away from the opening, of the open end wrench, and the center line of the inner square connecting hole is parallel to the center line of the opening.
3. The open ended hollow wrench of claim 2, wherein: the working head of the hollow wrench is provided with an inner hexagonal sleeve.
4. The open ended hollow wrench of claim 3, wherein: the conversion head is of a stepped structure, the small-diameter section is an outer square column body which can be matched with the inner square connecting hole of the open spanner, and the large-diameter section is an outer hexagonal column body which can be matched with the inner hexagonal sleeve of the hollow spanner.
5. The open ended hollow wrench of claim 4, wherein: the conversion head is in clearance fit with the inner square connecting hole and the inner hexagonal sleeve.
6. The open ended hollow wrench of claim 4, wherein: a chamfer is arranged at the end part of the small-diameter section of the conversion head, and a lightening hole is formed in the center of the large-diameter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021183438.5U CN212421109U (en) | 2020-06-23 | 2020-06-23 | Open type hollow wrench for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021183438.5U CN212421109U (en) | 2020-06-23 | 2020-06-23 | Open type hollow wrench for narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212421109U true CN212421109U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021183438.5U Active CN212421109U (en) | 2020-06-23 | 2020-06-23 | Open type hollow wrench for narrow space |
Country Status (1)
| Country | Link |
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| CN (1) | CN212421109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276048A (en) * | 2021-04-29 | 2021-08-20 | 中船澄西船舶修造有限公司 | Bolt torque conversion wrench for narrow space and use method |
-
2020
- 2020-06-23 CN CN202021183438.5U patent/CN212421109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276048A (en) * | 2021-04-29 | 2021-08-20 | 中船澄西船舶修造有限公司 | Bolt torque conversion wrench for narrow space and use method |
| CN113276048B (en) * | 2021-04-29 | 2024-03-19 | 中船澄西船舶修造有限公司 | Bolt torque force conversion wrench for narrow space and use method |
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