Right-angle wrench
By designing a right-angle wrench including active components, reduction components, driven components and chuck components, the problem of large space and strength required for use of right-angle wrench on the market is solved, and efficient and labor-saving screw and nut operation is achieved in a narrow space.
Patent Information
- Application Number
- CN202510227745.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-05-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The right-angle wrench on the market requires a lot of space and effort when used, especially when rotating screw nuts with larger specifications, which are inconvenient and laborious.
A right-angle wrench including an active assembly, a deceleration assembly, a driven assembly and a chuck assembly is designed. The active assembly transmits force through the driving gear and the afterburner rod, the reduction assembly realizes torque conversion through the combination of pinion and large gear, and the driven assembly provides additional support and stability through springs and flat keys.
The operation of tightening or loosening the screw nut in a narrow space environment is realized, and due to the design of the gear, the force required to be applied is reduced, making the operation more labor-saving.
Smart Images
Figure CN119952645A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of tools, and more particularly to a right-angle wrench. Background Art
[0002] Wrenches are very commonly used tools, and most wrenches are straight. Although there are right-angle wrenches, the right-angle wrenches on the market are usually rotated around the central axis of the screw or nut being rotated when used. The rotation radius is large and requires a large space. If you rotate a screw or nut with a larger specification, it is very laborious and there is no labor-saving function. Summary of the invention
[0003] In order to solve this problem, the present invention provides a right-angle wrench, which can perform angular rotation on a screw and save labor.
[0004] The technical solution adopted by the present invention is:
[0005] The right-angle wrench comprises a driving component, a reduction component, a driven component and a chuck component.
[0006] The active component comprises an active shaft, an active gear, a semicircular key, a rolling bearing I, a copper sleeve I, an active sleeve, an active sleeve screw and a force rod.
[0007] The driving shaft is provided with a driving cylinder, a semicircular keyway, a driving shaft cylinder I, a driving shaft cylinder II and a force rod mounting hole.
[0008] The driving cylinder cooperates with the inner hole of the driving gear; the driving shaft cylinder I cooperates with the inner hole of the rolling bearing I; the driving shaft cylinder II cooperates with the inner hole of the copper sleeve I.
[0009] Preferably, both end faces of the driving shaft have center holes, the driving shaft is tempered and precision-turned using the center holes at both ends, or the driving shaft is heat-treated and then ground using the center holes at both ends.
[0010] Preferably, the active cylinder, the active shaft cylinder I and the active shaft cylinder II are coaxial.
[0011] The active sleeve is provided with an active sleeve arc I and an active sleeve arc II.
[0012] The active sleeve arc II is matched with the outer circle of the copper sleeve I.
[0013] Preferably, the active sleeve arc I and the active sleeve arc II are coaxial.
[0014] The reduction assembly comprises a reduction housing, a small gear, an additional active bearing, an active cover, active cover screws, a large gear, an additional driven bearing, a driven cover and driven cover screws.
[0015] The reduction box body is provided with a box body active arc, a box body driven arc, a box body additional active arc, a box body additional driven arc, a box body active circular surface and a box body driven circular surface.
[0016] Preferably, the active arc of the box, the active circular surface of the box and the additional active arc of the box are coaxial; the driven arc of the box, the driven circular surface of the box and the additional driven arc of the box are coaxial; the central axis of the active arc of the box and the central axis of the driven arc of the box are perpendicular to each other and are located in the same plane.
[0017] The active circular arc of the box body cooperates with the outer circle of the rolling bearing I; the active circular surface of the box body cooperates with the active sleeve circular arc I.
[0018] The active cover is provided with an active cover bearing mounting hole and an active cover outer ring.
[0019] Preferably, the active cover bearing mounting hole and the active cover outer ring are coaxial.
[0020] The active cover bearing mounting hole matches with the outer circle of the additional active bearing; the active cover outer ring matches with the additional active arc of the box body.
[0021] The driven cover is provided with a driven cover bearing mounting hole and a driven cover outer ring.
[0022] Preferably, the driven cover bearing mounting hole and the driven cover outer ring are coaxial.
[0023] The driven cover bearing mounting hole matches with the outer circle of the additional driven bearing; the driven cover outer ring matches with the additional driven arc of the box body.
[0024] The driven component comprises a retaining spring, a driven gear, a flat key, a rolling bearing II, a driven shaft, a copper sleeve II, a driven sleeve and a driven sleeve screw.
[0025] The structure of the driven sleeve is the same as that of the driving sleeve.
[0026] The driven shaft is provided with a circlip groove, a driven cylinder, a flat key groove, a driven shaft cylinder I, a driven shaft cylinder II, a driven shaft cylinder with a notch and a hexagonal hole.
[0027] Preferably, the outer opening of the hexagonal hole is provided with a center hole, and the end surface of the other end of the driven shaft is provided with a center hole. The driven shaft is subjected to quenching and tempering treatment and fine turning is performed using the center holes at both ends, or the driven shaft is subjected to heat treatment and then ground using the center holes at both ends.
[0028] The inner hole of the driven gear cooperates with the driven cylinder; the inner hole of the rolling bearing II cooperates with the driven shaft cylinder I; and the inner hole of the copper sleeve II cooperates with the driven shaft cylinder II.
[0029] The chuck assembly comprises an elastic chuck and a chuck nut.
[0030] The middle section of the elastic chuck has an external thread, which cooperates with the chuck nut; the small head of the elastic chuck is an elastic head, and the inner hole of the elastic head is used to install a flat-head or cross screwdriver head; the other end of the elastic chuck is a cylinder, which has an inner hole with a cutout, and the inner hole cooperates with the cylinder with a cutout on the driven shaft.
[0031] The beneficial effects of the present invention are:
[0032] The right-angle wrench has a novel concept, a reasonable structure, is easy to operate and labor-saving, and can be used to tighten or loosen screws and nuts in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Further explanation below in conjunction with the graphics of the present invention:
[0034] Figure 1 It is a structural schematic diagram of the present invention.
[0035] Figure 2 It is an exploded view of the present invention.
[0036] Figure 1-Figure 2 Among them, 1. driving component, 2. reduction component, 3. driven component, 4. chuck component.
[0037] Figure 3 is an exploded diagram of the active component.
[0038] Figure 3 In the middle, 11. driving shaft, 12. driving gear, 13. semicircular key, 14. rolling bearing I, 15. copper sleeve I, 16. driving sleeve, 17. driving sleeve screw, 18. afterburner rod.
[0039] Figure 4 Schematic diagram of the structure of the driving shaft.
[0040] Figure 4 In the figure, 111. driving cylinder, 112. semicircular keyway, 113. driving shaft cylinder I, 114. driving shaft cylinder II, 115. mounting hole for the force rod.
[0041] Figure 5 : is a schematic diagram of the structure of the active sleeve, in order to show the internal structure, the active sleeve is cut away in half.
[0042] Figure 5In the figure, 161. active sleeve arc I, 162. active sleeve arc II.
[0043] Figure 6 It is a schematic diagram of the structure of the reduction assembly. In order to show the internal structure, the reduction box body is cut in half.
[0044] Figure 7 This is an exploded view of the reduction assembly. In order to show the internal structure, the reduction box body is cut in half.
[0045] Figure 6-Figure 7 In the middle, 21. reduction box body, 22. small gear, 23. additional active bearing, 24. active cover, 25. active cover screw, 26. large gear, 27. additional driven bearing, 28. driven cover, 29. driven cover screw.
[0046] Figure 8 It is a schematic diagram of the structure of the reduction gear box. In order to show the internal structure, the reduction gear box is cut in half.
[0047] Figure 8 Among them, 211. the active arc of the box, 212. the driven arc of the box, 213. the additional active arc of the box, 214. the additional driven arc of the box, 215. the active circular surface of the box, 216. the driven circular surface of the box.
[0048] Fig. 9 Schematic diagram of the structure of the active cover.
[0049] Fig. 9 In the middle, 241. Active cover bearing mounting hole, 242. Active cover outer ring.
[0050] Fig.10 Schematic diagram of the structure of the driven cover.
[0051] Fig.10 In the middle, 281. driven cover bearing mounting hole, 282. driven cover outer ring.
[0052] Fig.11 is an exploded view of the driven component.
[0053] Fig.11 In the middle, 31. retaining ring, 32. driven gear, 33. flat key, 34. rolling bearing II, 35. driven shaft, 36. copper sleeve II, 37. driven sleeve, 38. driven sleeve screw.
[0054] Fig.12 Schematic diagram of the structure of the driven shaft.
[0055] Fig.12In the middle, 351. circlip groove, 352. driven cylinder, 353. flat keyway, 354. driven shaft cylinder I, 355. driven shaft cylinder II, 356. driven shaft cylinder with notch, 357. hexagonal hole.
[0056] Fig.13 is an exploded view of the chuck assembly.
[0057] Fig.13 In the figure, 41. elastic collet, 42. collet nut. DETAILED DESCRIPTION
[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.
[0059] like Figure 1-2 As shown, the right-angle wrench includes the active component 1, the reduction component 2, the driven component 3 and the chuck component 4.
[0060] like Figure 3 As shown, the active component 1 includes the active shaft 11, the active gear 12, the semicircular key 13, the rolling bearing I 14, the copper sleeve I 15, the active sleeve 16, the active sleeve screw 17 and the force rod 18.
[0061] Furthermore, the copper sleeve 1 15 is made of copper alloy through metal cutting, and can also be an oil bearing made of powder metallurgy, or a needle roller bearing.
[0062] Furthermore, the active sleeve 16 is made of aluminum alloy die castings through metal cutting, and can also be made of engineering plastics through injection molding.
[0063] like Figure 4 As shown, the driving shaft 11 is provided with the driving cylinder 111, the semicircular keyway 112, the driving shaft cylinder I 113, the driving shaft cylinder II 114 and the booster rod mounting hole 115.
[0064] Furthermore, the force rod 18 is inserted into the force rod mounting hole 115 , and two ends of the force rod 18 are riveted.
[0065] The semicircular key 13 is installed into the semicircular keyway 112 , and the inner hole of the driving gear 12 is inserted into the driving cylinder 111 .
[0066] The driving cylinder 111 cooperates with the inner hole of the driving gear 12; the driving shaft cylinder I 113 cooperates with the inner hole of the rolling bearing I 14; the driving shaft cylinder II 114 cooperates with the inner hole of the copper sleeve I 15.
[0067] Preferably, the driving cylinder 111, the driving shaft cylinder I 113 and the driving shaft cylinder II 114 are coaxial.
[0068] like Figure 5 As shown, the active sleeve 16 is provided with the active sleeve arc I 161 and the active sleeve arc II 162 .
[0069] The active sleeve arc II 162 is matched with the outer circle of the copper sleeve I 15.
[0070] Preferably, the active sleeve arc I 161 and the active sleeve arc II 162 are coaxial.
[0071] like Figure 6-7 As shown, the reduction assembly 2 includes the reduction housing 21, the pinion 22, the additional active bearing 23, the active cover 24, the active cover screw 25, the large gear 26, the additional driven bearing 27, the driven cover 28 and the driven cover screw 29.
[0072] Furthermore, the active cover 24 and the driven cover 28 are made of aluminum alloy die castings through metal cutting, or they can be made of engineering plastics through injection molding.
[0073] like Figure 8 As shown, the reduction housing 21 is provided with the housing active arc 211 , the housing driven arc 212 , the housing additional active arc 213 , the housing additional driven arc 214 , the housing active circular surface 215 and the housing driven circular surface 216 .
[0074] Furthermore, the reduction gear box body 21 is made of aluminum alloy die-casting through metal cutting, and can also be made of engineering plastics through injection molding.
[0075] Preferably, the box active arc 211, the box active circular surface 215 and the box additional active arc 213 are coaxial; the box driven arc 212, the box driven circular surface 216 and the box additional driven arc 214 are coaxial; the central axis of the box active arc 211 and the central axis of the box driven arc 212 are perpendicular to each other and located in the same plane.
[0076] The active circular arc 211 of the housing cooperates with the outer circle of the rolling bearing 114; the active circular surface 215 of the housing cooperates with the active sleeve circular arc 1161.
[0077] like Fig. 9 As shown, the active cover 24 is provided with the active cover bearing mounting hole 241 and the active cover outer ring 242 .
[0078] Furthermore, the active cover 24 is made of aluminum alloy die-casting through metal cutting, and can also be made of engineering plastics through injection molding.
[0079] Preferably, the active cover bearing mounting hole 241 and the active cover outer ring 242 are coaxial.
[0080] The active cover bearing mounting hole 241 cooperates with the outer circle of the additional active bearing 23 ; the active cover outer ring 242 cooperates with the additional active arc 213 of the box body.
[0081] Preferably, the other end of the tooth profile of the pinion gear 22 is the mounting cylinder of the pinion gear 22, and the mounting cylinder cooperates with the inner hole of the additional active bearing 23. The mounting cylinder of the pinion gear 22, the inner hole of the pinion gear 22 and the tooth profile of the pinion gear 22 are coaxial, and the inner hole of the pinion gear 22 is inserted into the active cylinder 111.
[0082] like Fig.10 As shown, the driven cover 28 is provided with the driven cover bearing mounting hole 281 and the driven cover outer ring 282 .
[0083] Furthermore, the driven cover 28 is made of aluminum alloy die-casting through metal cutting, and can also be made of engineering plastics through injection molding.
[0084] Preferably, the driven cover bearing mounting hole 281 and the driven cover outer ring 282 are coaxial.
[0085] The driven cover bearing mounting hole 281 cooperates with the outer circle of the additional driven bearing 27 ; the driven cover outer ring 282 cooperates with the additional driven arc 214 of the housing.
[0086] Preferably, the other end of the tooth profile of the large gear 26 is a mounting cylinder of the large gear 26 , and the mounting cylinder cooperates with the inner hole of the additional driven bearing 27 , and the mounting cylinder of the large gear 26 and the tooth profile of the large gear 26 are coaxial.
[0087] like Fig.11As shown, the driven assembly 30 includes the retaining spring 31, the driven gear 32, the flat key 33, the rolling bearing II 34, the driven shaft 35, the copper sleeve II 36, the driven sleeve 37 and the driven sleeve screw 38.
[0088] Furthermore, the copper sleeve II 36 is made of copper alloy through metal cutting, and can also be an oil bearing made of powder metallurgy, or a needle bearing.
[0089] Furthermore, the driving gear 12, the driven gear 32, the pinion gear 22 and the large gear 26 are all straight bevel gears, or all spiral bevel gears. The driving gear 12 is meshed with the driven gear 32, the driven gear 32 is meshed with the pinion gear 22, the pinion gear 22 is meshed with the large gear 26, and the large gear 26 is meshed with the driving gear 12.
[0090] Furthermore, the number of teeth of the driving gear 12 is the same as the number of teeth of the pinion gear 22 . The number of teeth of the driven gear 32 is the same as the number of teeth of the large gear 26 .
[0091] Furthermore, the number of teeth of the driving gear 12 is less than the number of teeth of the driven gear 32 .
[0092] More preferably, the number of teeth of the driving gear 12 and the number of teeth of the driven gear 32 are prime numbers to each other.
[0093] The structure of the driven sleeve 37 is the same as that of the driving sleeve 16 .
[0094] Furthermore, the driven sleeve 37 is made of aluminum alloy die castings through metal cutting, and can also be made of engineering plastics through injection molding.
[0095] like Fig.12 As shown, the driven shaft 35 is provided with the retaining ring groove 351, the driven cylinder 352, the flat key groove 353, the driven shaft cylinder I 354, the driven shaft cylinder II 355, the driven shaft notched cylinder 356 and the hexagonal hole 357.
[0096] Furthermore, the hexagonal hole 357 may be a hexagonal inner hole or a square inner hole.
[0097] The inner hole of the driven gear 32 cooperates with the driven cylinder 352; the inner hole of the rolling bearing II 34 cooperates with the driven shaft cylinder I 354; the inner hole of the copper sleeve II 36 cooperates with the driven shaft cylinder II 355.
[0098] like Fig.13As shown, the clamp assembly 4 includes the elastic clamp 41 and the clamp nut 42 .
[0099] The middle section of the elastic chuck 41 is provided with an external thread, which cooperates with the chuck nut 42; the small head of the elastic chuck 41 is an elastic head, the inner hole of which is used to install a flat-head or cross screwdriver head and is tightened with the chuck nut 42; the other end of the elastic chuck 41 is a cylinder, which has an inner hole with a notch, and the inner hole cooperates with the notched cylinder 356 of the driven shaft.
[0100] The driving sleeve 16 is fixedly connected to the reduction box body 21 through the driving sleeve screw 17 .
[0101] The driven sleeve 37 is fixedly connected to the reduction box body 21 by the driven sleeve screw 38 .
[0102] The active cover 24 is fixedly connected to the reduction box body 21 by the active cover screws 25 .
[0103] The driven cover 28 is fixedly connected to the reduction box body 21 by the driven cover screws 29 .
[0104] When in use, a socket wrench straight rod is installed in the hexagonal hole 357, and a corresponding sleeve is installed on the socket wrench straight rod; or, a corresponding elastic collet 41 is installed on the driven shaft notched cylinder 356, and a slotted or cross screw head is installed in the inner hole of the elastic collet 41, and the collet nut 42 is tightened. The sleeve is inserted into the corresponding hexagonal screw or nut, or the slotted screw head is inserted into the slotted screw, or the cross screw head is inserted into the cross screw; hold the reduction box 21 with one hand, and turn the force rod 18 with the other hand, the driving gear 12 rotates, driving the driven gear 32 to rotate, and driving the driven shaft 35 to rotate, so that the screws and nuts in a relatively narrow space can be tightened or loosened; because the number of teeth of the driving gear 12 is less than that of the driven gear 32, even if the screws and nuts to be rotated are larger in specification, the force required to be applied to the force rod 18 is relatively small, that is, it is more labor-saving.
[0105] When the force-adding rod 18 is rotated, on the one hand, the driving gear 12 is meshed with the driven gear 32 for transmission; on the other hand, the driving gear 12 is meshed with the large gear 26 for transmission, the large gear 26 is meshed with the small gear 22 for transmission, and the small gear 22 is meshed with the driven gear 32 for transmission; in this way, during the use of the right-angle wrench, the driving gear 12 and the driven gear 32 are meshed with each other for transmission, and the force is more stable.
[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred implementation examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.
Claims
1. A right-angle wrench, comprising a driving component, a reduction component, a driven component and a chuck component; characterized in that: The active component includes an active shaft, an active gear, a semicircular key, a rolling bearing I, a copper sleeve I, an active sleeve, an active sleeve screw and a force rod; the active shaft is provided with an active cylinder, a semicircular keyway, an active shaft cylinder I, an active shaft cylinder II and a force rod mounting hole; the active cylinder cooperates with the inner hole of the active gear; the active shaft cylinder I cooperates with the inner hole of the rolling bearing I; the active shaft cylinder II cooperates with the inner hole of the copper sleeve I; the active sleeve is provided with an active sleeve arc I and an active sleeve arc II; the active sleeve arc II cooperates with the outer circle of the copper sleeve I.
2. A right angle wrench as claimed in claim 1, characterized in that: The reduction assembly includes a reduction housing, a pinion, an additional active bearing, an active cover, an active cover screw, a large gear, an additional driven bearing, a driven cover and a driven cover screw; the reduction housing is provided with a housing active arc, a housing driven arc, an additional active arc, an additional driven arc, a housing active circular surface and a housing driven circular surface; the housing active arc, the housing active circular surface and the housing additional active arc are coaxial; the housing driven arc, the housing driven circular surface and the housing additional driven arc are coaxial; the central axis of the housing active arc and the central axis of the housing driven arc are perpendicular to each other and are located in the same plane; the housing active arc cooperates with the outer circle of the rolling bearing I; the housing active circular surface cooperates with the active sleeve arc I.
3. A right angle wrench according to claim 1 or claim 2, characterized in that: The active cover is provided with an active cover bearing mounting hole and an active cover outer ring; the active cover bearing mounting hole matches with the outer circle of the additional active bearing; the active cover outer ring matches with the additional active arc of the box body.
4. A right angle wrench according to claim 1 or claim 2, characterized in that: The driven cover is provided with a driven cover bearing mounting hole and a driven cover outer ring; the driven cover bearing mounting hole matches with the outer circle of the additional driven bearing; the driven cover outer ring matches with the additional driven arc of the box body.
5. A right angle wrench as claimed in claim 1, characterized in that: The driven component includes a retaining ring, a driven gear, a flat key, a rolling bearing II, a driven shaft, a copper sleeve II, a driven sleeve and a driven sleeve screw; the structure of the driven sleeve is the same as that of the driving sleeve; the driven shaft is provided with a retaining ring groove, a driven cylinder, a flat key groove, a driven shaft cylinder I, a driven shaft cylinder II, a driven shaft with a notched cylinder and a hexagonal hole; the inner hole of the driven gear cooperates with the driven cylinder; the inner hole of the rolling bearing II cooperates with the driven shaft cylinder I; the inner hole of the copper sleeve II cooperates with the driven shaft cylinder II.
6. A right angle wrench as claimed in claim 1, characterized in that: The chuck assembly comprises an elastic chuck and a chuck nut.