CN211916657U - Novel explosion-proof ratchet spanner - Google Patents
Novel explosion-proof ratchet spanner Download PDFInfo
- Publication number
- CN211916657U CN211916657U CN202020537945.8U CN202020537945U CN211916657U CN 211916657 U CN211916657 U CN 211916657U CN 202020537945 U CN202020537945 U CN 202020537945U CN 211916657 U CN211916657 U CN 211916657U
- Authority
- CN
- China
- Prior art keywords
- shell
- force application
- pawl
- sleeve
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a novel explosion-proof ratchet spanner belongs to explosion-proof instrument technical field. The novel explosion-proof ratchet wrench comprises a force application rod, wherein two wrench heads with different specifications are arranged at two ends of the force application rod. The wrench head comprises a sleeve arranged inside the shell, the sleeve is rotatably connected with the shell, a ratchet wheel is arranged on one section of outer surface of the sleeve, which is positioned inside the shell, and a reversing structure for adjusting the rotation direction of the ratchet wheel is arranged inside the shell. The bottom of the shell is rotatably connected with the connecting rod through a damping rotating shaft, and the connecting rod is connected with the force application rod through a clamping structure. The utility model adopts the above structure novel explosion-proof ratchet spanner can solve current ratchet spanner application scope narrow, influences the problem that ratchet spanner used in constrictive space.
Description
Technical Field
The utility model belongs to the technical field of explosion-proof instrument device technique and specifically relates to a novel explosion-proof ratchet spanner is related to.
Background
A ratchet wrench is a tool for rotating a bolt or nut placed in a narrow or difficult-to-access location, and is rotatably connected to an operating lever. The explosion-proof ratchet wrench is the most common manual tool for explosion-proof tools, and is mainly made of beryllium bronze and aluminum bronze, so that heat generated in a short time is absorbed and conducted when the tool and an object rub or impact; copper is soft, has good deformability during friction and impact, is not easy to generate tiny metal particles, and has an explosion-proof effect.
The existing explosion-proof ratchet wrench can only meet the use requirement of one of triangular, quadrangular, hexagonal, octagonal or dodecagonal bolts or nuts, and has a narrow application range. When the nut or the bolt is disassembled in a narrow space, the ratchet wrench cannot straightly extend into the narrow space due to the limitation of the space, and the use of the ratchet wrench is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel explosion-proof ratchet spanner solves that current ratchet spanner application scope is narrow, influences the problem that ratchet spanner used in constrictive space.
In order to achieve the purpose, the utility model provides a novel explosion-proof ratchet wrench, which comprises an application rod, wherein two wrench heads with different specifications are arranged at two ends of the application rod;
the wrench head comprises a sleeve arranged in the shell, the sleeve is rotationally connected with the shell, a ratchet wheel is arranged on the outer surface of a section of the sleeve positioned in the shell, and a reversing structure for adjusting the rotation direction of the ratchet wheel is arranged in the shell;
the bottom of the shell is rotatably connected with the connecting rod through a damping rotating shaft, and the connecting rod is connected with the force application rod through a clamping structure.
Preferably, the reversing structure comprises a first pawl and a second pawl which are matched with the ratchet wheel, the first pawl and the second pawl are connected with the inner wall of the shell through a first spring, and the bottoms of the first pawl and the second pawl are rotatably connected with the shell; a shifting fork for switching is arranged between the first pawl and the second pawl, the shifting fork is connected with a reversing rod through a connecting shaft, the reversing rod is located outside the shell, and the connecting shaft is rotatably connected with the shell.
Preferably, the housing is provided with a sealing cover, the sealing cover is fixedly connected with the housing, and the sealing cover is provided with a through hole for the sleeve to pass through.
Preferably, the outer part of the force application rod is sleeved with a rubber anti-slip sleeve.
Preferably, the joint structure includes plug and movable sleeve, the one end that the casing was kept away from to the connecting rod is provided with the plug, the application of force pole is inside hollow tubular structure, the outside cover at application of force pole end is equipped with the movable sleeve, be provided with spring two between movable sleeve and the application of force pole outer wall, be provided with the spacing arch of positioning spring two on the internal surface of movable sleeve, be provided with the card ball between movable sleeve and the application of force pole, the position that corresponds the card ball on the lateral wall of application of force pole is provided with the through-hole, the diameter of through-hole is not more than the diameter of card ball, be provided with on the plug with the ring groove who blocks.
Preferably, the end of the plug is provided with a limit groove, and the side wall of the force application rod is provided with a limit pin.
A novel explosion-proof ratchet spanner, the both ends of application of force pole are provided with the spanner head of different specifications, a ratchet spanner can be dismantled or the installation to the nut or the bolt of different models, specification, has improved ratchet spanner's application scope. The shell of the wrench head is connected with the connecting rod through the damping rotating shaft, the angle between the sleeve and the force application rod can be adjusted, and the nut or the bolt can be installed and dismantled in a narrow space which cannot be straightly extended into the ratchet wrench. The connecting rod is connected with the force application rod through the clamping structure, connection is convenient, different wrench heads can be replaced according to needs, one force application rod can be matched with a plurality of wrench heads for use, and the disassembling requirements of nuts or bolts of more models and specifications can be met.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a novel explosion-proof ratchet wrench of the present invention;
fig. 2 is a schematic structural view of a wrench head of an embodiment of the novel explosion-proof ratchet wrench of the present invention;
fig. 3 is a schematic cross-sectional structure view of a wrench head of an embodiment of the novel explosion-proof ratchet wrench of the present invention;
fig. 4 is a schematic view of a clamping structure of an embodiment of the novel explosion-proof ratchet wrench of the present invention.
Reference numerals
1. A force application rod; 2. a wrench head; 3. a connecting rod; 4. a movable sleeve; 5. a reversing lever; 6. a housing; 7. a ratchet wheel; 8. a first pawl; 9. a second pawl; 10. a shifting fork; 11. a first spring; 12. a plug; 13. a card slot; 14. a damping rotating shaft; 15. a sleeve; 16. sealing the cover; 17. a connecting shaft; 18. a fixing pin; 19. a limiting groove; 20. blocking the ball; 21. a second spring; 22. and a limiting pin.
Detailed Description
Examples
Fig. 1 is a schematic structural view of an embodiment of the novel explosion-proof ratchet wrench of the present invention. As shown in the figure, the novel explosion-proof ratchet wheel 7 wrench comprises a force application rod 1, wherein the force application rod 1 is of a tubular structure with a hollow interior. Two wrench heads 2 with different specifications are arranged at two ends of the force application rod 1, and the different specifications refer to bolts or nuts suitable for different models or different specifications, so that one ratchet wheel 7 wrench can meet the use requirements of different nuts and bolts, and the application range of the ratchet wheel 7 wrench is widened. The outside of the force application rod 1 is sleeved with a rubber anti-slip sleeve.
Fig. 2 is the first schematic view of a wrench head structure of a novel explosion-proof ratchet wrench embodiment, fig. 3 is the utility model relates to a wrench head cross-sectional structure of a novel explosion-proof ratchet wrench embodiment. As shown, the wrench head 2 includes a sleeve 15 disposed inside the housing 6, the housing 6 is provided with a through hole for the sleeve 15 to pass through, and the sleeve 15 is rotatably connected with the housing 6 through a bearing. A section of the outer surface of the sleeve 15 located inside the housing 6 is provided with a ratchet wheel 7, and a reversing structure for adjusting the rotation direction of the ratchet wheel 7 is arranged inside the housing 6. The housing 6 is provided with a cover 16, and the cover 16 is fixedly connected with the housing 6 through screws. The cover 16 is provided with a through hole through which the sleeve 15 passes.
The commutation structure is a conventional one, and the following commutation structure is adopted in this embodiment. The reversing structure comprises a first pawl 8 and a second pawl 9 which are matched with the ratchet wheel 7, and the bottoms of the first pawl 8 and the second pawl 9 are rotatably connected with the shell 6 through fixing pins 18. The fixing pin 18 is fixed on the shell 6, through holes for the fixing pin 18 to pass through are formed in the bottoms of the first pawl 8 and the second pawl 9, and the aperture of each through hole is slightly larger than the diameter of the fixing pin 18, so that the first pawl 8 and the second pawl 9 can rotate on the fixing pin 18. The end of the fixing pin 18 is provided with a clamp spring, a clamp pin or a nut of the existing structure to limit the first pawl 8 and the second pawl 9, and the first pawl 8 and the second pawl 9 are prevented from falling off from the fixing pin 18. The first pawl 8 and the second pawl 9 are connected with the inner wall of the shell 6 through a first spring 11, one end of the first spring 11 is fixed on the inner wall of the shell 6, and the other end of the first spring 11 is fixed on the first pawl 8 or the second pawl 9. When the first pawl 8 and the second pawl 9 are engaged with the ratchet wheel 7, the corresponding first spring 11 has a certain compression amount, so that the first pawl 8 and the second pawl 9 can be kept in good engagement with the ratchet wheel 7. A shifting fork 10 for switching is arranged between the first pawl 8 and the second pawl 9, the shifting fork 10 is connected with the reversing rod 5 through a connecting shaft 17, and the reversing rod 5 is positioned outside the shell 6. Two ends of the connecting shaft 17 are respectively fixedly connected with the shifting fork 10 and the reversing rod 5. The shifting fork 10 is of an approximately fan-shaped structure, the top of the shifting fork 10 is connected with the connecting shaft 17, and the bottom end of the shifting fork 10 is in contact with the first pawl 8 and the second pawl 9. The shell 6 is provided with a through hole for the connecting shaft 17 to pass through, and the aperture of the through hole is slightly larger than the diameter of the connecting shaft 17, so that the connecting shaft 17 is rotatably connected with the shell 6. The reversing rod 5 is rotated, the reversing rod 5 drives the shifting fork 10 to rotate through the connecting shaft 17, the distance between the first pawl 8, the second pawl 9 and the ratchet wheel 7 can be changed when the shifting fork 10 with the approximate fan-shaped structure rotates, only one of the first pawl 8 and the second pawl 9 is meshed with the ratchet wheel 7, and the rotating direction of the ratchet wheel 7 is reversed.
The bottom of casing 6 is passed through damping pivot 14 and is connected with connecting rod 3 rotates, and connecting rod 3 is the round bar, and the one end that connecting rod 3 is close to casing 6 is provided with the recess of U type, is provided with the through-hole that makes damping pivot 14 pass on the recess lateral wall. The connecting lug arranged at the bottom of the shell 6 is also provided with a through hole for the damping rotating shaft 14 to pass through, and the connecting lug at the bottom of the shell 6 is inserted into the groove and connects the shell 6 with the connecting rod 3 through the damping rotating shaft 14. The damping rotating shaft 14 is a conventional technique, and can keep a certain angle between the shell 6 and the connecting rod 3 unchanged under the condition of no external force.
Fig. 4 is a schematic view of a clamping structure of an embodiment of the novel explosion-proof ratchet wrench of the present invention. As shown in the figure, the connecting rod 3 is connected with the force application rod 1 through a clamping structure. The clamping structure comprises a plug 12 and a movable sleeve 4, the plug 12 is arranged at one end, far away from the shell 6, of the connecting rod 3, and the movable sleeve 4 is sleeved outside the end of the force application rod 1. A second spring 21 is arranged between the movable sleeve 4 and the outer wall of the force application rod 1, a limiting bulge for positioning the second spring 21 is arranged on the inner surface of the movable sleeve 4, and a convex ring for positioning the second spring 21 is arranged on the outer wall of the force application rod 1. The inner diameter of the movable sleeve 4 is larger than the outer diameter of the end of the force application rod 1, so that the movable sleeve 4 can slide on the force application rod 1. A clamping ball 20 is arranged between the movable sleeve 4 and the force application rod 1, a through hole is arranged on the side wall of the force application rod 1 corresponding to the position of the clamping ball 20, and the diameter of the through hole is not larger than that of the clamping ball 20. The plug 12 is provided with a ring-shaped slot 13 matched with the ball 20, and the ball 20 is clamped in the slot 13 to realize the fixed connection between the plug 12 and the force application rod 1. The end of the plug 12 is provided with a long strip-shaped limiting groove 19 penetrating through the plug 12, and the side wall of the force application rod 1 is provided with a limiting pin 22. The limit pin 22 is inserted into the limit groove 19 to prevent the plug 12 and the force application rod 1 from rotating relatively.
When the ball clamping device is used, pressure is applied to the movable sleeve 4, the second spring 21 is compressed, the movable sleeve 4 moves relative to the force application rod 1, and a larger moving space is provided for the ball clamping 20 above the limiting protrusion in the movable sleeve 4; the plug 12 is inserted into the force application rod 1, the limiting pin 22 is aligned with the limiting groove 19, and the clamping ball 20 moves towards the space above the limiting bulge under the extrusion of the side wall of the plug 12, so that the plug 12 can be smoothly inserted into the force application rod 1; the pressure applied to the movable sleeve 4 is released, the movable sleeve 4 bounces under the action of the second spring 21, the clamping ball 20 moves towards the through hole on the side wall of the force application rod 1 under the extrusion of the limiting protrusion, and the clamping ball 20 is clamped into the clamping groove 13 to realize the reliable connection of the plug 12 and the force application rod 1. When the plug is disassembled, pressure is applied to the movable sleeve 4, and the plug 12 is directly pulled out. In order to increase the connection strength between the plug 12 and the force application rod 1, the detent ball 20 may be provided in plurality.
The explosion-proof ratchet 7 wrench in the embodiment is made of beryllium bronze or aluminum bronze materials, and has a good explosion-proof effect.
Therefore, the utility model adopts the above structure novel explosion-proof ratchet spanner can solve current ratchet spanner application scope narrow, influences the problem that ratchet spanner used in constrictive space.
The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a novel explosion-proof ratchet spanner which characterized in that: comprises a force application rod, two ends of the force application rod are provided with two wrench heads with different specifications;
the wrench head comprises a sleeve arranged in the shell, the sleeve is rotationally connected with the shell, a ratchet wheel is arranged on the outer surface of a section of the sleeve positioned in the shell, and a reversing structure for adjusting the rotation direction of the ratchet wheel is arranged in the shell;
the bottom of the shell is rotatably connected with the connecting rod through a damping rotating shaft, and the connecting rod is connected with the force application rod through a clamping structure.
2. The novel explosion-proof ratchet wrench as claimed in claim 1, wherein: the reversing structure comprises a first pawl and a second pawl which are matched with the ratchet wheel, the first pawl and the second pawl are connected with the inner wall of the shell through a first spring, and the bottoms of the first pawl and the second pawl are rotatably connected with the shell; a shifting fork for switching is arranged between the first pawl and the second pawl, the shifting fork is connected with a reversing rod through a connecting shaft, the reversing rod is located outside the shell, and the connecting shaft is rotatably connected with the shell.
3. The novel explosion-proof ratchet wrench as claimed in claim 1, wherein: the shell is provided with a sealing cover, the sealing cover is fixedly connected with the shell, and the sealing cover is provided with a through hole through which the sleeve penetrates.
4. The novel explosion-proof ratchet wrench as claimed in claim 1, wherein: and the outer part of the force application rod is sleeved with a rubber anti-skidding sleeve.
5. The novel explosion-proof ratchet wrench as claimed in claim 1, wherein: the clamping structure comprises a plug and a movable sleeve, the end, far away from the shell, of the connecting rod is provided with the plug, the force application rod is of an internal hollow tubular structure, the outer sleeve at the end of the force application rod is provided with the movable sleeve, a second spring is arranged between the movable sleeve and the outer wall of the force application rod, a limiting bulge for positioning the second spring is arranged on the inner surface of the movable sleeve, a clamping ball is arranged between the movable sleeve and the force application rod, a through hole is formed in the position, corresponding to the clamping ball, on the side wall of the force application rod, the diameter of the through hole is not larger than that of the clamping ball, and an annular clamping.
6. The novel explosion-proof ratchet wrench as claimed in claim 5, wherein: the end of the plug is provided with a limiting groove, and the side wall of the force application rod is provided with a limiting pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020537945.8U CN211916657U (en) | 2020-04-13 | 2020-04-13 | Novel explosion-proof ratchet spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020537945.8U CN211916657U (en) | 2020-04-13 | 2020-04-13 | Novel explosion-proof ratchet spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211916657U true CN211916657U (en) | 2020-11-13 |
Family
ID=73375516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020537945.8U Active CN211916657U (en) | 2020-04-13 | 2020-04-13 | Novel explosion-proof ratchet spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211916657U (en) |
-
2020
- 2020-04-13 CN CN202020537945.8U patent/CN211916657U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205799326U (en) | Ratchet spanner capable of reversing | |
| CN211916657U (en) | Novel explosion-proof ratchet spanner | |
| US8166852B2 (en) | Ratchet wrench | |
| CN211332951U (en) | Adjustable ratchet wrench structure | |
| CN212372069U (en) | Torque wrench | |
| CN209380620U (en) | A kind of magnetic padlock commutation wrench | |
| CN211867622U (en) | Double offset ring spanner for disassembling filtering equipment | |
| CN201211654Y (en) | Lubricating bidirectional ratcher combination wrench with low noise | |
| CN209866557U (en) | Novel ornaments point gum rifle | |
| CN213004985U (en) | Telescopic inner hexagonal wrench for hardware | |
| CN111692169A (en) | Connecting fastener | |
| CN201211655Y (en) | Lubricating head shaking type ratcher combination wrench with low noise | |
| CN220204332U (en) | Bolt of antiskid silk | |
| CN210361094U (en) | Multifunctional angle-adjustable screwdriver | |
| CN208005211U (en) | A kind of clamping device of the output shaft of cycloidal planetary gear speed reducer | |
| CN210909743U (en) | T-shaped inner hexagonal tool | |
| CN201147911Y (en) | Spanner | |
| CN214081157U (en) | Multifunctional wrench | |
| CN211728848U (en) | Flexible drag hook assembly of automobile checking fixture | |
| CN210535547U (en) | Protection device for switch in equipment cylinder cap line | |
| CN203317284U (en) | Heavy type ratchet wrench | |
| CN112894689B (en) | Pipeline wrench | |
| CN214870144U (en) | Bidirectional ratchet type inner hexagon bolt wrench | |
| CN220408559U (en) | Multifunctional speeder wrench | |
| CN107599741B (en) | A kind of automobile basic hand tool having multiple functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |