CN109531490B - Switching structure of ratchet wrench and ratchet wrench - Google Patents
Switching structure of ratchet wrench and ratchet wrench Download PDFInfo
- Publication number
- CN109531490B CN109531490B CN201910053880.1A CN201910053880A CN109531490B CN 109531490 B CN109531490 B CN 109531490B CN 201910053880 A CN201910053880 A CN 201910053880A CN 109531490 B CN109531490 B CN 109531490B
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- sleeve
- matching structure
- sleeve matching
- groove
- pushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a switching structure of a ratchet wrench and the ratchet wrench, which are characterized in that the switching structure comprises a shell, a first sleeve matching structure, a second sleeve matching structure, a third sleeve matching structure and a pushing piece, wherein the first sleeve matching structure is connected and installed at the lower end of the shell, the second sleeve matching structure can be movably sleeved in the first sleeve matching structure, the third sleeve matching structure can be movably sleeved in the second sleeve matching structure, the pushing piece can rotate in the horizontal direction and can also be movably sleeved in the shell in the vertical direction, and the pushing piece can control the movement of the second sleeve matching structure and the third sleeve matching structure. The invention can lead one ratchet wrench to be suitable for matching three sleeves with different types, and when screws with different types need to be screwed respectively, the ratchet wrench does not need to be replaced.
Description
Technical Field
The invention belongs to the technical field of hardware, and particularly relates to a ratchet wrench and a switching structure thereof.
Background
The basic structure of the ratchet wrench comprises a handle, a rotating sleeve with a rotating cavity is connected to the end of the handle, a rotating body is arranged in the rotating sleeve, a connector which can be connected with a connecting hole of a nut, a screw head or a sleeve of a socket wrench is arranged on the rotating body, and a ratchet pawl structure is arranged between the rotating head and the rotating cavity of the rotating sleeve. When the ratchet-pawl rotating body is used, the connector of the rotating body is connected with the nut, the screw head or the connecting hole of the sleeve, then the handle can be rotated in the forward direction, and at the moment, the ratchet-pawl mechanism acts, so that the rotating body can be driven to rotate through the rotating sleeve, and the screw, the nut and the like can be rotated in the forward direction; then, the wrench can rotate reversely, and due to the action of the ratchet wheel and the pawl, the rotating sleeve cannot provide reverse torque like the rotating body, so that idle rotation is generated between the rotating sleeve and the rotating body. The handle can be used for screwing the screw, the nut and the like after forward rotation and reverse rotation for a plurality of times, and the connector of the rotating body does not need to be separated from the screw head or the nut in the screwing process, so that the screw, the nut and the like are greatly convenient to disassemble and assemble.
Chinese patent CN106737340A discloses a friction type ratchet wrench, which is suitable for being connected with a sleeve, including a housing with a regular polygon friction cavity, a holder located in the friction cavity and a friction cylinder located in the holder, the friction cylinder is provided with a connector capable of being connected with the sleeve, the periphery of the holder is provided with a friction element at the vertex angle corresponding to the friction cavity, a toggle element drives the holder to rotate in the friction cavity, thereby the outer side of the friction element on the holder is attached to the friction cavity, and the inner side of the friction element is attached to the friction cylinder in the holder. When the outer shell rotates, the outer shell extrudes the friction element to generate friction force, and then the friction cylinder and the connector can be driven to rotate; when the outer shell rotates reversely, the outer shell can rotate freely relative to the friction cylinder and the connector.
The patent can avoid the phenomenon of idling of the wrench, and can obviously improve the structural strength of the wrench on the basis of not increasing the overall dimension of the wrench, thereby effectively prolonging the service life. However, there are also the following problems: the connector size of ratchet spanner is fixed, and this makes the sleeve that ratchet spanner used only can match with the size of connector, in the screw or the nut that face multiple model, can only take the mode of changing whole ratchet spanner, has reduced work efficiency.
Therefore, how to provide a ratchet wrench and an adapting structure thereof, which have a simple structure and can use various types of sockets to rotate various types of screws without replacing the whole ratchet wrench, is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a simple structure, can use the socket of multiple model with can be to the switching structure and the ratchet spanner that can rotate to the screw of multiple model under the condition of not changing whole ratchet spanner.
In order to solve the technical problems, the invention adopts the following technical scheme:
an adapter structure of a ratchet wrench, comprising:
the lower side of the shell is of an open structure;
the first sleeve matching structure is a tubular structure, and the upper end of the first sleeve matching structure is connected and installed at the lower end of the shell;
the second sleeve matching structure is a tubular structure, is positioned in the first sleeve matching structure and is in sliding fit connection with the first sleeve matching structure, and can vertically move downwards until the lower end of the second sleeve matching structure extends out of the lower end of the first sleeve matching structure;
the third sleeve matching structure is positioned in the second sleeve matching structure and is in sliding fit connection with the second sleeve matching structure, and the third sleeve matching structure can vertically move downwards until the lower end of the third sleeve matching structure extends out of the lower ends of the first sleeve matching structure and the second sleeve matching structure;
the pushing piece is of a columnar structure and is vertically arranged in the shell, and the upper end of the pushing piece extends out of the upper side of the shell and can freely rotate around the axis line of the pushing piece; the lower end of the pushing piece is connected with the upper end of the third sleeve matching structure, a stop block protruding out of the pushing piece is further horizontally arranged on one side of the pushing piece close to the lower end, and the stop block extends to the upper side of the second sleeve matching structure so as to drive the second sleeve matching structure and the third sleeve matching structure to move downwards together; a sliding groove is formed in the inner side wall of the second sleeve matching structure in the vertical direction, the upper end of the sliding groove penetrates through the upper end of the second sleeve matching structure, the stop block can rotate above the sliding groove along with the pushing piece, and the stop block can slide downwards along the sliding groove, so that the pushing piece can independently drive the third sleeve matching structure to move downwards;
the lower end of the first sleeve matching structure or the second sleeve matching structure or the third sleeve matching structure is used for being connected with a bolt sleeve.
In the technical scheme, when the third sleeve matching structure is arranged in the second sleeve matching structure and the second sleeve matching structure is arranged in the first sleeve matching structure, the sleeves of one type can be matched and adapted according to the size of the lower end of the first sleeve matching structure; when the third sleeve matching structure is arranged in the second sleeve matching structure and the lower end of the second sleeve matching structure is exposed out of the first sleeve matching structure, the sleeve of another type can be matched and adapted according to the size of the lower end of the second sleeve matching structure; when the lower end of the third sleeve matching structure is exposed out of the first sleeve matching structure and the second sleeve matching structure, the sleeve of another model can be matched and adapted according to the size of the lower end of the third sleeve matching structure; like this, first sleeve cooperation structure, second sleeve cooperation structure and third sleeve cooperation structure just can make a ratchet spanner can adapt to the sleeve of three kinds of different models of cooperation to can adapt to the screw of three kinds of different models, when need twist the screw of different models and move, just need not change ratchet spanner, improved work efficiency.
Further, the inside wall of first sleeve cooperation structure is equipped with the first dovetail that extends along vertical direction to the concave, the upper end of first dovetail runs through the upper end of first sleeve cooperation structure, the lateral wall of second sleeve cooperation structure corresponds the position of first dovetail still protruding second sliding part that is equipped with, second sliding part slidable locates in the first dovetail the downside of second sliding part with vertically be equipped with first spring between the bottom of first dovetail.
Like this, first dovetail makes second sleeve cooperation structure can stably slide along the up-and-down direction in first sleeve cooperation structure to first spring still plays the effect of support to second sleeve cooperation structure, and can also provide the effect of reseing.
Furthermore, the inner side wall of the second sleeve matching structure is concavely provided with a second dovetail groove extending along the vertical direction, the upper end of the second dovetail groove penetrates through the upper end of the second sleeve matching structure, the outer side wall of the third sleeve matching structure corresponds to the position of the second dovetail groove, a third sliding part is further convexly arranged, the third sliding part can be slidably arranged in the second dovetail groove, and a second spring is vertically arranged between the lower side of the third sliding part and the bottom of the second dovetail groove.
Thus, the second dovetail groove enables the third sleeve matching structure to stably slide in the second sleeve matching structure along the up-down direction, and the second spring also plays a supporting role for the third sleeve matching structure and can also provide a resetting role.
Furthermore, a connecting shaft is coaxially arranged at the upper end of the third sleeve matching structure, and the third sleeve matching structure is connected with the pushing piece through the connecting shaft; the pushing piece is internally provided with a slide way which is arranged along the axial direction and penetrates through the lower end of the pushing piece, the cross section area of the lower part of the slide way is larger than that of the upper part of the slide way, the upper end of the connecting shaft extends into the slide way and is expanded to form a spherical crown structure, and the cross section area of the bottom of the spherical crown structure is larger than that of the lower part of the slide way.
The third sleeve matching structure is limited by the second dovetail groove and cannot horizontally rotate along with the pushing piece, so that the pushing piece and the third sleeve matching structure are required to be separated to realize the horizontal rotation of the pushing piece; in the technical scheme, the pushing piece is internally provided with the slide way, so that the third sleeve matching structure can be separated from the pushing piece through the connecting shaft, and the rotating effect of the pushing piece is realized.
Furthermore, the upper end of the third sleeve matching structure is concavely provided with a limiting groove, and the lower end of the pushing piece corresponding to the limiting groove is also convexly provided with a limiting strip matched with the limiting groove.
Therefore, when the pushing piece does not need to rotate, the pushing piece is limited by the matching of the limiting strip of the pushing piece and the limiting groove of the third sleeve matching structure, and the stability is improved.
Furthermore, the axial lead of the shell coincides with the axial lead of the pushing piece, a through hole is formed in the upper end of the shell corresponding to the pushing piece, the upper end of the pushing piece extends out of the shell from the through hole, the outer side wall of the pushing piece is further inwards concave to form a locking piece sliding groove, the upper end of the locking piece sliding groove penetrates through the upper end of the pushing piece, a vertically arranged locking piece is fixedly arranged on the upper portion of the inner side wall of the through hole, the locking piece can be located in the locking piece sliding groove, a locking groove with a trapezoidal vertical cross section is formed in the lower side of the locking piece, and a lock tongue corresponding to the shape of the locking groove is; the shell is pushed to move upwards, so that the locking piece moves to the position above the pushing piece, then after the locking piece horizontally rotates to the position above the lock bolt, the locking piece can be sleeved in the lock bolt, and therefore the locking limit of the shell is achieved.
Like this, when need match the sleeve model with second sleeve cooperation structure and when need match the sleeve model with third sleeve cooperation structure, just can lock spacingly to these two kinds of states, and need not to press the impeller always, saved the manpower.
Furthermore, the outer side wall of the first sleeve matching structure is inwards concave along the circumferential direction to form a rotating groove, and a rotating part is convexly arranged on the outer side wall of the shell corresponding to the rotating groove in the direction of the rotating groove so as to enable the shell to rotate.
In this way, the housing can be rotated horizontally alone without affecting the first sleeve engagement structure.
Furthermore, the side wall of the pushing member is further provided with a limiting part protruding outwards, the limiting part is located in the shell, and one side of the limiting part, which is far away from the pushing member, extends to form a staggered structure with the through hole, so that the whole pushing member is prevented from being separated from the shell upwards.
Thus, the pushing member can be prevented from being ejected out of the housing by the upward return action of the first spring and the second spring.
Furthermore, a stopper positioning part is convexly arranged at the upper end of the second sleeve matching structure, and one side of the stopper positioning part is flush with the side wall of one side of the sliding groove.
Because the stop block and the sliding groove are both positioned inside the rotating structure in the technical scheme, when the pushing piece is rotated, whether the stop block rotates to the position above the sliding groove is difficult to determine.
The invention also provides a ratchet wrench, which comprises the switching structure of the ratchet wrench, and is characterized in that the upper end of the pushing piece is connected with the ratchet wrench, the ratchet wrench comprises a head part with a containing groove with a downward opening, a connector with a hexagonal cross section is also arranged at the center of the upper end of the pushing piece in an upward protruding mode, and the connector is clamped with the containing groove.
Drawings
Fig. 1 is a schematic vertical sectional view of the adapter structure in an unlocked state.
Fig. 2 is a schematic vertical sectional view of the adapter structure in a locked state.
Fig. 3 is an external structural view of the present invention.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention.
Fig. 5 is a schematic diagram of an explosive structure according to the present invention.
Fig. 6 is a schematic view of the structure of the stopper of the present invention.
Fig. 7 is a schematic structural view of the adapting structure of the invention when assembled on a ratchet wrench.
The reference numbers illustrate: a first sleeve mating structure 1; a first dovetail groove 11; a first spring 12; a rotation groove 13; a second sleeve mating structure 2; a second slide portion 21; a second dovetail groove 22; a second spring 23; a slide groove 24; a stopper positioning portion 25; a third sleeve fitting structure 3; a third slide portion 31; a connecting shaft 32; a spherical cap 321; a stopper groove 33; a pusher member 4; a stopper 41; a stopper 42; a slide 43; a stopper bar 44; a locking member chute 45; a latch tongue 46; a connector 47; a housing 5; a rotating portion 51; a through hole 52; a lock 53; a lock groove 531; an adapting structure 6; a ratchet wrench 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1 to 7, an adapter structure of a ratchet wrench is characterized in that the adapter structure 6 includes a housing 5, a first sleeve engaging structure 1, a second sleeve engaging structure 2, a third sleeve engaging structure 3 and a pushing member 4. The lower side of the housing 5 is an open structure. First sleeve cooperation structure 1 is the tubular structure, its upper end connect install in the lower extreme of shell 5, the inside wall of first sleeve cooperation structure 1 is to the concave first dovetail 11 that extends along vertical direction that is equipped with, the upper end of first dovetail 11 runs through the upper end of first sleeve cooperation structure 1, the lateral wall of second sleeve cooperation structure 2 corresponds the position of first dovetail 11 is protruding second sliding part 21 that is equipped with still, second sliding part 21 slidable is located in the first dovetail 11 the downside of second sliding part 21 with vertically be equipped with first spring 12 between the bottom of first dovetail 11. The second sleeve matching structure 2 is a tubular structure and is positioned in the first sleeve matching structure 1, and is connected with the first sleeve matching structure 1 in a sliding matching way, and the second sleeve matching structure 2 can vertically move downwards until the lower end of the second sleeve matching structure extends out of the lower end of the first sleeve matching structure 1, the inner side wall of the second sleeve matching structure 2 is concavely provided with a second dovetail groove 22 extending along the vertical direction, the upper end of the second dovetail groove 22 penetrates through the upper end of the second sleeve matching structure 2, a third sliding part 31 is further convexly arranged at a position of the outer side wall of the third sleeve matching structure 3, which corresponds to the second dovetail groove 22, the third sliding part 31 is slidably arranged in the second dovetail groove 22, a second spring 23 is vertically provided between the lower side of the third sliding portion 31 and the bottom of the second dovetail groove 22. The third sleeve matching structure 3 is located in the second sleeve matching structure 2 and is connected with the second sleeve matching structure 2 in a sliding matching mode, and the third sleeve matching structure 3 can vertically move downwards until the lower end of the third sleeve matching structure extends out of the lower ends of the first sleeve matching structure 1 and the second sleeve matching structure 2. The pushing piece 4 is of a columnar structure and is vertically arranged in the shell 1, and the upper end of the pushing piece extends out of the upper side of the shell 1 and can freely rotate around the axis line of the pushing piece; the lower end of the pushing part 4 is connected with the upper end of the third sleeve matching structure 3, a stop block 41 protruding out of the pushing part 4 is further horizontally arranged on one side of the pushing part 4 close to the lower end, and the stop block 41 extends to the upper side of the second sleeve matching structure 2 so as to drive the second sleeve matching structure 2 and the third sleeve matching structure 3 to move downwards together; the inner side wall of the second sleeve matching structure 2 is provided with a sliding groove 24 in the vertical direction, the upper end of the sliding groove 24 penetrates through the upper end of the second sleeve matching structure 2, the stop block 41 can rotate to the upper side of the sliding groove 24 along with the pushing member 4, and the stop block 41 can slide downwards along the sliding groove 24, so that the pushing member 4 can independently drive the third sleeve matching structure 3 to move downwards. The lower end of the first sleeve matching structure 1 or the second sleeve matching structure 2 or the third sleeve matching structure 3 is used for being connected with a bolt sleeve.
In the technical scheme, when the third sleeve matching structure is arranged in the second sleeve matching structure and the second sleeve matching structure is arranged in the first sleeve matching structure, the sleeves of one type can be matched and adapted according to the size of the lower end of the first sleeve matching structure; when the third sleeve matching structure is arranged in the second sleeve matching structure and the lower end of the second sleeve matching structure is exposed out of the first sleeve matching structure, the sleeve of another type can be matched and adapted according to the size of the lower end of the second sleeve matching structure; when the lower end of the third sleeve matching structure is exposed out of the first sleeve matching structure and the second sleeve matching structure, the sleeve of another model can be matched and adapted according to the size of the lower end of the third sleeve matching structure; therefore, the first sleeve matching structure, the second sleeve matching structure and the third sleeve matching structure can enable one ratchet wrench to be suitable for matching three different types of sleeves, so that the ratchet wrench can be suitable for three different types of screws, when the screws of different types need to be screwed, the ratchet wrench does not need to be replaced, and the working efficiency is improved; the first dovetail groove enables the second sleeve matching structure to stably slide in the first sleeve matching structure along the vertical direction, and the first spring also plays a role in supporting the second sleeve matching structure and can also provide a reset function; the second dovetail groove enables the third sleeve matching structure to stably slide in the second sleeve matching structure along the up-down direction, and the second spring also plays a supporting role for the third sleeve matching structure and can also provide a resetting role.
A connecting shaft 32 is coaxially arranged at the upper end of the third sleeve matching structure 3, and the third sleeve matching structure 3 is connected with the pushing piece 4 through the connecting shaft 32; the pushing part 4 is internally provided with a slide way 43 which is arranged along the axial direction and penetrates through the lower end of the pushing part, the cross section area of the lower part of the slide way 43 is larger than that of the upper part of the slide way, the upper end of the connecting shaft 32 extends into the slide way 43 and is expanded to form a spherical crown structure 321, and the cross section area of the bottom of the spherical crown structure 321 is larger than that of the lower part of the slide way 43. The upper end of the third sleeve matching structure 3 is concavely provided with a limiting groove 33, the lower end of the pushing member 4 corresponding to the position of the limiting groove 33 is also convexly provided with a limiting strip 44 matched with the limiting groove 33, and the third sleeve matching structure 3 is connected with the pushing member 4 through a connecting shaft 32 convexly arranged at the upper end of the third sleeve matching structure.
The third sleeve matching structure is limited by the second dovetail groove and cannot horizontally rotate along with the pushing piece, so that the pushing piece and the third sleeve matching structure are required to be separated to realize the horizontal rotation of the pushing piece; in the technical scheme, the pushing piece is internally provided with the slide way, so that the third sleeve matching structure can be separated from the pushing piece through the connecting shaft, and the rotating effect of the pushing piece is realized; when the pushing piece does not need to rotate, the limiting strip of the pushing piece is matched with the limiting groove of the third sleeve matching structure to limit the pushing piece, and stability is improved.
The axial lead of the shell 5 coincides with the axial lead of the pushing part 4, a through hole 52 is arranged at the upper end of the shell corresponding to the pushing part 4, the upper end of the pushing part 4 extends out of the shell 5 from the through hole 52, the outer side wall of the pushing part 4 is further inwards concave to form a locking part sliding groove 45, the upper end of the locking part sliding groove 45 penetrates through the upper end of the pushing part 4, a vertically arranged locking part 53 is fixedly arranged at the upper part of the inner side wall of the through hole 52, the locking part 53 can be positioned in the locking part sliding groove 45, a locking groove 531 with a trapezoidal vertical cross section is arranged at the lower side of the locking part 53, and a locking bolt 46 corresponding to the locking groove 531 in shape is convexly arranged at the; the shell 5 is pushed to move upwards, so that the locking piece 53 moves above the pushing piece 4, and then after the locking piece 53 horizontally rotates above the bolt 46, the locking piece 53 can be sleeved in the bolt 46, so that the locking limit of the shell 5 is realized.
Like this, when need match the sleeve model with second sleeve cooperation structure and when need match the sleeve model with third sleeve cooperation structure, just can lock spacingly to these two kinds of states, and need not to press the impeller always, saved the manpower.
The outer side wall of the first sleeve matching structure 1 is inwardly recessed along the circumferential direction to form a rotating groove 13, and a rotating portion 51 is convexly arranged on the outer side wall of the housing 5 in the direction of the rotating groove 13 corresponding to the position of the rotating groove 13, so that the housing 5 rotates.
In this way, the housing can be rotated horizontally alone without affecting the first sleeve engagement structure.
The side wall of the pushing member 4 is further provided with a limiting portion 42 protruding outwards, the limiting portion 42 is located in the casing 5, and one side of the limiting portion 42 away from the pushing member 4 extends to form a staggered structure with the through hole 52, so that the pushing member 4 is prevented from being separated from the casing 5 upwards.
Therefore, the limiting part can prevent the pushing piece from being ejected out of the shell under the upward reset action of the first spring and the second spring.
The upper end of the second sleeve matching structure 2 is convexly provided with a stop positioning part 25, and one side of the stop positioning part 25 is flush with one side wall of the sliding groove 24.
Because the stop block and the sliding groove are both positioned inside the rotating structure in the technical scheme, when the pushing piece is rotated, whether the stop block rotates to the position above the sliding groove is difficult to determine.
The invention also provides a ratchet wrench, which comprises the switching structure of the ratchet wrench, and is characterized in that the upper end of the pushing part 4 is connected with the ratchet wrench 7, the ratchet wrench 7 comprises a head part with a downward opening containing groove, the center of the upper end of the pushing part 4 is also provided with a connecting head 47 with a polygonal cross section in an upward protruding mode, and the connecting head 47 is clamped with the containing groove.
In practice, the connector 47 is preferably hexagonal, and can be better matched with the accommodating groove for clamping, but the connector is not limited to this, and can be adjusted according to actual conditions.
In practice, the position-limiting portion 42 is annular, and the outer diameter thereof is larger than the diameter of the through hole 52.
In implementation, the first sleeve matching structure 1 is directly connected to the housing 5, and the second sleeve matching structure 2 and the third sleeve matching structure 3 are both located in the first sleeve matching structure 3, so that the switching structure of the technical scheme can be matched with a sleeve of a first type without moving the pushing member 4.
In operation, the housing 5 is lifted upwards to move the locking member 53 upwards out of the locking member sliding groove 45, then, by rotating the housing 5, the locking piece 53 is rotated to be above the latch tongue 46 and the locking piece 53 is buckled on the latch tongue 46, due to the support of the locking piece 53 by the locking tongue 46, the first sleeve fitting structure 1 can be kept in a state of being located above the second sleeve fitting structure 2, and then the ratchet wrench 7 is pressed to drive the pushing piece 4 to move downwards, since the stop 41 is now disposed above the second sleeve engaging structure 2, the stop is, therefore, in the process that the pushing member 4 moves downwards, the second sleeve matching structure 2 and the third sleeve matching structure 3 move downwards simultaneously and are exposed downwards relative to the first sleeve matching structure 1, and at this time, the switching structure of the technical scheme can be matched with a sleeve of a second type.
In operation, the housing 5 is lifted upwards to move the locking member 53 upwards out of the locking member sliding groove 45, then, by rotating the housing 5, the locking piece 53 is rotated to above the latch tongue 46 and the locking piece 53 is buckled on the latch tongue 46, and by rotating the ratchet wrench 7, the pushing piece 4 is rotated, when the stopper 41 of the side of the pushing member 4 encounters the stopper of the stopper positioning portion 25, i.e., representing that the stopper 41 has rotated above the slide groove 24, by pressing the ratchet wrench 7, but moving the pusher 4 downward, the third sleeve engagement structure 3 alone can be moved downward, and the third sleeve matching structure 3 is exposed downwards relative to the first sleeve matching structure 1 and the second sleeve matching structure 2, and at this time, the switching structure of the technical scheme can be matched with sleeves of a third type.
Claims (10)
1. An adapter structure of a ratchet wrench, comprising:
the lower side of the shell is of an open structure;
the first sleeve matching structure is a tubular structure, and the upper end of the first sleeve matching structure is connected and installed at the lower end of the shell;
the second sleeve matching structure is a tubular structure, is positioned in the first sleeve matching structure and is in sliding fit connection with the first sleeve matching structure, and can vertically move downwards until the lower end of the second sleeve matching structure extends out of the lower end of the first sleeve matching structure;
the third sleeve matching structure is positioned in the second sleeve matching structure and is in sliding fit connection with the second sleeve matching structure, and the third sleeve matching structure can vertically move downwards until the lower end of the third sleeve matching structure extends out of the lower ends of the first sleeve matching structure and the second sleeve matching structure;
the pushing piece is of a columnar structure and is vertically arranged in the shell, and the upper end of the pushing piece extends out of the upper side of the shell and can freely rotate around the axis line of the pushing piece; the lower end of the pushing piece is connected with the upper end of the third sleeve matching structure, a stop block protruding out of the pushing piece is further horizontally arranged on one side of the pushing piece close to the lower end, and the stop block extends to the upper side of the second sleeve matching structure so as to drive the second sleeve matching structure and the third sleeve matching structure to move downwards together; a sliding groove is formed in the inner side wall of the second sleeve matching structure in the vertical direction, the upper end of the sliding groove penetrates through the upper end of the second sleeve matching structure, the stop block can rotate above the sliding groove along with the pushing piece, and the stop block can slide downwards along the sliding groove, so that the pushing piece can independently drive the third sleeve matching structure to move downwards;
the lower end of the first sleeve matching structure or the second sleeve matching structure or the third sleeve matching structure is used for being connected with a bolt sleeve.
2. The adapter structure of a ratchet wrench according to claim 1, wherein a first dovetail groove extending in a vertical direction is concavely formed on an inner side wall of the first sleeve engagement structure, an upper end of the first dovetail groove penetrates through an upper end of the first sleeve engagement structure, a second sliding portion is convexly formed on an outer side wall of the second sleeve engagement structure at a position corresponding to the first dovetail groove, the second sliding portion is slidably disposed in the first dovetail groove, and a first spring is vertically disposed between a lower side of the second sliding portion and a bottom of the first dovetail groove.
3. The adapter structure of a ratchet wrench according to claim 2, wherein a second dovetail groove extending in the vertical direction is concavely formed on an inner side wall of the second sleeve engagement structure, an upper end of the second dovetail groove penetrates through an upper end of the second sleeve engagement structure, a third sliding portion is convexly formed on an outer side wall of the third sleeve engagement structure at a position corresponding to the second dovetail groove, the third sliding portion is slidably arranged in the second dovetail groove, and a second spring is vertically arranged between a lower side of the third sliding portion and a bottom of the second dovetail groove.
4. The adapter of a ratchet wrench as claimed in claim 3, wherein a connecting shaft is coaxially provided at an upper end of the third sleeve engagement structure, and the third sleeve engagement structure is connected to the pushing member via the connecting shaft; the pushing piece is internally provided with a slide way which is arranged along the axial direction and penetrates through the lower end of the pushing piece, the cross section area of the lower part of the slide way is larger than that of the upper part of the slide way, the upper end of the connecting shaft extends into the slide way and is expanded to form a spherical crown structure, and the cross section area of the bottom of the spherical crown structure is larger than that of the lower part of the slide way.
5. The adapter of claim 4, wherein the third sleeve engaging structure has a concave limiting groove at an upper end thereof, and the pushing member has a convex limiting strip engaging with the limiting groove at a lower end thereof corresponding to the limiting groove.
6. The adapting structure of a ratchet wrench as claimed in claim 5, wherein the axial line of the housing coincides with the axial line of the pushing member, a through hole is formed at the upper end of the housing corresponding to the pushing member, the upper end of the pushing member extends out of the housing from the through hole, the outer side wall of the pushing member is further recessed inwards to form a locking member sliding groove, the upper end of the locking member sliding groove penetrates through the upper end of the pushing member, a vertically arranged locking member is fixedly arranged at the upper part of the inner side wall of the through hole, the locking member can be located in the locking member sliding groove, a locking groove with a trapezoidal vertical cross-sectional shape is formed at the lower side of the locking member, and a locking tongue corresponding to the locking groove shape is convexly; the shell is pushed to move upwards, so that the locking piece moves to the position above the pushing piece, then after the locking piece horizontally rotates to the position above the lock bolt, the locking piece can be sleeved in the lock bolt, and therefore the locking limit of the shell is achieved.
7. The adapter of claim 6, wherein the outer sidewall of the first socket engaging structure is recessed inward along a circumference thereof to form a rotation groove, and the outer sidewall of the housing has a rotation portion protruding toward the rotation groove corresponding to the rotation groove to rotate the housing.
8. The adapter structure of a ratchet wrench as claimed in claim 7, wherein a side wall of the pushing member is further provided with a limiting portion protruding outward, the limiting portion is located in the housing, and a side of the limiting portion away from the pushing member extends to form a dislocation structure with the through hole, so as to prevent the entire pushing member from being separated from the housing upward.
9. The adapter of claim 1, wherein the second sleeve engaging structure has a stopper positioning portion protruding from an upper end thereof, and a side of the stopper positioning portion is flush with a side wall of the sliding groove.
10. A ratchet wrench comprising the adapter of the ratchet wrench as claimed in any one of claims 1 to 9, wherein the upper end of the pushing member is adapted to be connected to the ratchet wrench, the ratchet wrench comprises a head having a downwardly opening receiving groove, and a connecting head having a polygonal cross-sectional shape is protruded upwardly from the center of the upper end of the pushing member, and the connecting head is engaged with the receiving groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053880.1A CN109531490B (en) | 2019-01-21 | 2019-01-21 | Switching structure of ratchet wrench and ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053880.1A CN109531490B (en) | 2019-01-21 | 2019-01-21 | Switching structure of ratchet wrench and ratchet wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109531490A CN109531490A (en) | 2019-03-29 |
| CN109531490B true CN109531490B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910053880.1A Expired - Fee Related CN109531490B (en) | 2019-01-21 | 2019-01-21 | Switching structure of ratchet wrench and ratchet wrench |
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| Country | Link |
|---|---|
| CN (1) | CN109531490B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2193136A (en) * | 1986-07-29 | 1988-02-03 | Yang Tai Her | A multiple socket spanner unit |
| CN104385199A (en) * | 2014-10-10 | 2015-03-04 | 宁波聚益工具有限公司 | Novel hexagon wrench |
| CN205734608U (en) * | 2016-05-05 | 2016-11-30 | 北京亿华通科技股份有限公司 | A kind of spanner and combinations thereof formula driving end |
| CN205870379U (en) * | 2016-07-28 | 2017-01-11 | 华侨大学 | Novel compound allen key |
| US9573252B1 (en) * | 2013-05-11 | 2017-02-21 | David M. Lee | Multiple size nut driver |
-
2019
- 2019-01-21 CN CN201910053880.1A patent/CN109531490B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2193136A (en) * | 1986-07-29 | 1988-02-03 | Yang Tai Her | A multiple socket spanner unit |
| US9573252B1 (en) * | 2013-05-11 | 2017-02-21 | David M. Lee | Multiple size nut driver |
| CN104385199A (en) * | 2014-10-10 | 2015-03-04 | 宁波聚益工具有限公司 | Novel hexagon wrench |
| CN205734608U (en) * | 2016-05-05 | 2016-11-30 | 北京亿华通科技股份有限公司 | A kind of spanner and combinations thereof formula driving end |
| CN205870379U (en) * | 2016-07-28 | 2017-01-11 | 华侨大学 | Novel compound allen key |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109531490A (en) | 2019-03-29 |
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Granted publication date: 20200901 Termination date: 20210121 |