A handle

Abstract

The present application relates to handle technical field, specifically to a kind of handle, comprising: handle head, through hole is provided;Two one-way bearings, rotation direction is opposite, with through hole cooperation connection;Transmission shaft sleeve, it can be relative to the inner ring of two one-way bearings towards axial direction sliding, with the inner ring of one of one-way bearings cooperation connection;Driving shaft, including connected screw, connecting section and annular protrusion, the end of connecting section is telescopically set in the transmission shaft sleeve;Compression spring, clamped between the annular protrusion and transmission shaft sleeve;Button, telescopically set in the through hole, the front end surface of button and the rear end surface of transmission shaft sleeve abut.The driving shaft and one-way bearing of the handle of the present application do not exist sliding friction, long time use also will not wear, long service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of handles, in particular to a handle. BACKGROUND

[0002] The ratchet wrench is a kind of manual screw tightening and loosening tool, which can assist the user to tighten or loosen the bolt or nut. The existing ratchet wrench usually has a direction adjusting limiting mechanism to realize the reversing adjustment of the rotation direction of the ratchet wrench. The direction adjusting limiting mechanism usually consists of a limiting block, a pushing piece, a spring and a steel ball. The limiting block of the existing direction adjusting limiting mechanism is usually engaged with the ratchet, and the limiting block is in hard contact with the tooth surface of the ratchet. After long-term use, the limiting block is prone to wear, which causes the closure between the limiting block and the tooth surface of the ratchet to be not tight enough, and the limiting block cannot drive the ratchet to rotate and fails.

[0003] For example, the patent application No. 201721485804.0, entitled "D-head ratchet wrench and wrench head thereof", provides a pushing knob 3, a slot hole 33, a tooth block 6 engaged with the ratchet, a spring block 7 and a recess hole 71. The tooth block 6 is engaged with the ratchet, the front end of the spring block 7 abuts against the back surface of the tooth block 6, the recess hole 71 is provided with a spring, and the spring block 7 is arranged in the slot hole 33 and the front end thereof protrudes out of the slot hole 33 and abuts against the back surface of the tooth block. The rotation direction adjustment of the one-way rotation of the ratchet is completed by controlling the swinging of the pushing knob 3 to adjust the swinging of the front end of the spring block 7, changing the abutting angle between the spring block 7 and the tooth block 6, and tilting the tooth block 6. During the driving of the ratchet, the tooth block 6 is engaged with the tooth surface of the ratchet, the wrench drives the tooth block 6 to push the ratchet to rotate, and since the tooth block 6 and the tooth surface of the ratchet adopt a hard contact connection mode, the engagement surface of the tooth block 6 and the ratchet is prone to wear. When the wear accumulates to a certain degree, the engagement between the tooth block 6 and the tooth surface of the ratchet is not tight enough, which causes the driving failure and the ratchet cannot be driven to rotate. Therefore, overcoming the above technical problems is the key to effectively improving the service life of the existing ratchet handle. SUMMARY

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present application is to provide a handle, which does not have sliding friction between the driving shaft and the one-way bearing, and does not wear after long-term use, thereby prolonging the service life.

[0005] The purpose of the present application is achieved by the following technical scheme: a handle, comprising:

[0006] A handle head is provided with a through hole;

[0007] Two one-way bearings are arranged in the through hole in opposite directions and are connected with the through hole;

[0008] The transmission shaft sleeve is slidably connected with the inner ring of one of the two one-way bearings;

[0009] The driving shaft comprises a screw rod and a connecting section connected with each other, an annular protrusion is arranged at the joint of the screw rod and the connecting section, the end of the connecting section is sleeved in the transmission shaft sleeve, and the transmission shaft sleeve is slidably connected with the connecting section in the axial direction;

[0010] The compression spring is sleeved outside the connecting section and clamped between the annular protrusion and the transmission shaft sleeve;

[0011] The button is telescopically arranged in the through hole, and the front end surface of the button is abutted against the rear end surface of the transmission shaft sleeve.

[0012] The through hole comprises an axle hole, a bearing hole and an assembly hole connected in sequence, the annular protrusion is arranged in the axle hole, the one-way bearing is arranged in the bearing hole, and the button is telescopically arranged in the assembly hole.

[0013] The hole diameter of the bearing hole is greater than that of the axle hole, and the hole diameter of the assembly hole is greater than that of the bearing hole.

[0014] The handle further comprises a pressing limiting assembly for keeping the button in the depressed and contracted state or releasing the depressed and contracted state of the button.

[0015] The pressing limiting assembly comprises:

[0016] An assembly groove is arranged in the side wall of the assembly hole.

[0017] A positioning member is arranged in the assembly groove.

[0018] A sliding groove is arranged in the positioning member and extends in the axial direction.

[0019] A limiting groove is arranged in the positioning member and is located in front of the sliding groove and communicates with the sliding groove.

[0020] A positioning cam is slidably arranged in the sliding groove and is hingedly connected with the button.

[0021] The pressing limiting assembly further comprises:

[0022] A stepped counterbore is arranged in the right side surface of the button.

[0023] A first rotating shaft is arranged on the left side of the positioning cam and telescopically extends into the stepped counterbore.

[0024] A small rotating disc is fixed to the first rotating shaft and arranged in the stepped mouth of the stepped counterbore.

[0025] An active groove is arranged in the groove bottom of the sliding groove.

[0026] The second rotating shaft is located on the right side of the positioning cam, on the same axis as the first rotating shaft, and its end is slidably disposed in the movable groove;

[0027] The pressing limit component further includes:

[0028] The avoidance slope is located at the connection between the limiting groove and the sliding groove;

[0029] An avoidance groove is provided at the front end of the limiting groove and is connected to the limiting groove.

[0030] The handle further includes a flat washer, which is sandwiched between the compression spring and the drive shaft sleeve.

[0031] The handle further includes:

[0032] An assembly step is provided on the handle head;

[0033] A fixed cover plate is provided inside the assembly step to cover the through hole, and the rear end of the button extends out of the fixed cover plate;

[0034] The screw passes through the fixing cover plate and is screwed into the handle head.

[0035] The handle further includes a handle, one end of which is fixedly connected to the handle head.

[0036] The beneficial effects of this invention are as follows:

[0037] In the actual assembly process of this application, the screw of the drive shaft passes through the through hole from the right rear to the front and extends out in front of the through hole. Two one-way bearings are installed in the through hole, and the outer rings of the one-way bearings are connected to the mating parts. Then, the compression spring is sleeved on the connecting section of the drive shaft. The transmission shaft sleeve is installed in the through hole and covers the rear section of the connecting section of the drive shaft. The transmission shaft sleeve is connected to the inner ring of the one-way bearing near the button and separated from the inner ring of the one-way bearing away from the button. The rear end face of the compression spring abuts against the front end face of the transmission shaft sleeve. Finally, the button is telescopically assembled into the rear section of the through hole, and the front end face of the button abuts against the rear end face of the transmission shaft sleeve.

[0038] The inner ring of the one-way bearing closer to the button rotates clockwise, while the inner ring of the one-way bearing farther from the button rotates counterclockwise. A compression spring applies a rearward force towards the front end face of the drive shaft sleeve, ensuring that the rear end face of the drive shaft sleeve remains in contact with the front end face of the button.

[0039] The transmission shaft sleeve is connected with the inner ring of the one-way bearing close to the button, the transmission shaft sleeve and the inner ring of the one-way bearing can rotate in the clockwise direction, the counterclockwise direction is limited by the outer ring of the one-way bearing and cannot rotate, the handle head swings to drive the outer ring of the one-way bearing to rotate in the clockwise direction, so that the outer ring of the one-way bearing drives the inner ring to rotate in the clockwise direction, thereby driving the transmission shaft sleeve to rotate in the clockwise direction, driving the drive shaft to rotate in the clockwise direction, and realizing the one-way driving of the drive shaft in the clockwise direction.

[0040] The button is pressed inward, the button drives the transmission shaft sleeve to slide forward, the transmission shaft sleeve is separated from the one-way bearing close to the button, the transmission shaft sleeve slides into the one-way bearing away from the button and is connected with the one-way bearing, the transmission shaft sleeve and the inner ring of the one-way bearing can rotate in the counterclockwise direction, the clockwise direction is limited by the outer ring of the one-way bearing and cannot rotate, the handle head swings to drive the outer ring of the one-way bearing to rotate in the counterclockwise direction, so that the outer ring of the one-way bearing drives the inner ring to rotate in the counterclockwise direction, thereby driving the transmission shaft sleeve to rotate in the counterclockwise direction, driving the drive shaft to rotate in the counterclockwise direction, and realizing the one-way driving of the drive shaft in the counterclockwise direction.

[0041] The application drives the transmission shaft sleeve to rotate through the one-way bearing, thereby driving the drive shaft to rotate in one direction, when rotating, the side surface of the transmission shaft sleeve is connected with the inner ring of the one-way bearing, there is no sliding friction between the side surface of the transmission shaft sleeve and the inner ring of the one-way bearing, which is not easy to be worn and can always maintain good assembly precision, has a long service life, and the front end surface of the button and the rear end surface of the transmission shaft sleeve are kept in abutting relationship by the elastic force of the compression spring, after a long time of use, the abutting surface is slightly worn, the wear thickness can be compensated by the expansion and contraction of the compression spring, thereby ensuring that the front end surface of the button and the rear end surface of the transmission shaft sleeve always maintain good abutting relationship, each component always has good assembly precision, and the application will not fail to work normally because of wear of the abutting surface of the button and the transmission shaft sleeve.

[0042] The application adopts the above-mentioned brand-new mechanism design, the acting part of the acting force for driving the rotation of the driving shaft is the connecting part between the inner ring and the outer ring of the one-way bearing, effectively increases the area of the acting surface, the wear of the acting surface can be almost ignored, greatly prolongs the service life of the handle of the application, overcomes the problem that the acting surface of the acting force of the prior art is easy to wear, which leads to the continuous reduction of assembly precision, finally failure, and serious shortening of the service life of the handle, at the same time, the application realizes the switching of the screwing direction of the handle through the button, the operation is simple, the switching is quick and convenient, and the abutting surface between the button and the rotating shaft sleeve is the only wear surface of the application, the wear can be compensated by the extension and contraction of the compression spring, the button and the transmission shaft sleeve can always maintain a good abutting state, and the service life of the application will not be damaged due to wear. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a perspective view of the application;

[0044] Figure 2 is an exploded schematic view of the application;

[0045] Figure 3 is a sectional view of the application with the button in a depressed state;

[0046] Figure 4 is a perspective view of the handle head and the handle of the application;

[0047] Figure 5 is an exploded view of the button and the pressing limiting assembly of the application;

[0048] Figure 6 is an exploded view of the pressing limiting assembly of the application.

[0049] The figure marks are: handle head 1, through hole 2, shaft hole 3, bearing hole 4, assembly hole 5, one-way bearing 6, transmission shaft sleeve 7, driving shaft 8, screw 9, annular protrusion 10, connecting section 11, compression spring 12, button 13, assembly groove 14, positioning piece 15, sliding groove 16, limiting groove 17, positioning cam 18, stepped counterbore 19, first rotating shaft 20, small rotating disc 21, movable groove 22, second rotating shaft 23, avoiding inclined surface 24, avoiding groove 25, flat washer 26, assembly step 27, fixed cover plate 28, screw 29, handle 30. DETAILED DESCRIPTION

[0050] In order to facilitate the understanding of those skilled in the art, the following will be combined with examples and drawings Figures 1-6 The application is further described, and the content mentioned in the embodiments is not a limitation of the application.

[0051] Example 1

[0052] A button 13 type handle with fixed adjustable position, comprising:

[0053] The handle head 1 is provided with a through hole 2;

[0054] The two one-way bearings 6 are opposite in rotation direction, and are sleeved in the through hole 2 and connected with the through hole 2 in a matched mode;

[0055] The transmission shaft sleeve 7 can slide relative to the inner rings of the two one-way bearings 6 in an axial direction, and is connected with the inner ring of one of the one-way bearings 6 in a matched mode;

[0056] The drive shaft 8 comprises a screw rod 9 and a connecting segment 11 connected with each other, an annular protrusion 10 is arranged at the connection position of the screw rod 9 and the connecting segment 11, the end of the connecting segment 11 is sleeved in the transmission shaft sleeve 7, and the transmission shaft sleeve 7 can slide relative to the connecting segment 11 in an axial direction;

[0057] The compression spring 12 is sleeved outside the connecting segment 11 and clamped between the annular protrusion 10 and the transmission shaft sleeve 7;

[0058] The button 13 is arranged in the through hole 2 in an extendable and retractable mode, and the front end surface of the button 13 abuts against the rear end surface of the transmission shaft sleeve 7.

[0059] Specifically, the matched connection of the one-way bearing 6 and the through hole 2 can be realized in the following two modes: the one-way bearing 6 is connected with the through hole 2 in an interference fit mode; or a clamping groove is arranged in the through hole 2, and a clamping block is arranged on the outer surface of the outer ring of the one-way bearing, and the clamping block is clamped into the clamping groove.

[0060] Specifically, after the transmission shaft sleeve 7 is connected with the inner ring of one of the one-way bearings 6 in a matched mode, the transmission shaft sleeve 7 cannot rotate relative to the inner ring of the one-way bearing 6.

[0061] In the actual assembly process of the application, the screw rod 9 of the drive shaft 8 is inserted into the through hole 2 from the right rear of the through hole 2, and the two one-way bearings 6 are arranged in the through hole 2 and fixed by interference fit between the outer rings of the one-way bearings 6 and the through hole 2, then the compression spring 12 is sleeved on the connecting segment 11 of the drive shaft 8, the transmission shaft sleeve 7 is arranged in the through hole 2 and sleeved on the rear segment of the connecting segment 11 of the drive shaft 8, the transmission shaft sleeve 7 is connected with the inner ring of the one-way bearing 6 close to the button 13 and separated from the inner ring of the one-way bearing 6 far from the button 13, the rear end surface of the compression spring 12 abuts against the front end surface of the transmission shaft sleeve 7, and finally the button 13 is arranged in the rear segment of the through hole 2 in an extendable and retractable mode, and the front end surface of the button 13 abuts against the rear end surface of the transmission shaft sleeve 7. The assembly mode of the application is simple and easy to assemble, and the production efficiency can be effectively improved.

[0062] The rotation direction of the inner ring of the one-way bearing 6 close to the button 13 is considered as clockwise direction, and the rotation direction of the inner ring of the one-way bearing 6 far from the button 13 is considered as counterclockwise direction. The compression spring 12 applies a backward force to the front end surface of the transmission shaft sleeve 7, so that the rear end surface of the transmission shaft sleeve 7 and the front end surface of the button 13 always keep abutting.

[0063] The transmission shaft sleeve 7 is connected with the inner ring of the one-way bearing 6 close to the button 13, the transmission shaft sleeve 7 and the inner ring of the one-way bearing 6 can rotate clockwise, and the counterclockwise rotation is limited by the outer ring of the one-way bearing 6, the handle head 1 swings to drive the outer ring of the one-way bearing 6 to rotate clockwise, so that the outer ring of the one-way bearing 6 drives the inner ring to rotate clockwise, thereby driving the transmission shaft sleeve 7 to rotate clockwise, driving the driving shaft 8 to rotate clockwise, realizing the one-way driving of the driving shaft 8 in the clockwise direction.

[0064] The button 13 is pressed inward, the button 13 drives the transmission shaft sleeve 7 to slide forward, the transmission shaft sleeve 7 is separated from the one-way bearing 6 close to the button 13, the transmission shaft sleeve 7 slides into the one-way bearing 6 far from the button 13 and is connected with the one-way bearing 6, the transmission shaft sleeve 7 and the inner ring of the one-way bearing 6 can rotate counterclockwise, and the clockwise rotation is limited by the outer ring of the one-way bearing 6, the handle head 1 swings to drive the outer ring of the one-way bearing 6 to rotate counterclockwise, so that the outer ring of the one-way bearing 6 drives the inner ring to rotate counterclockwise, thereby driving the transmission shaft sleeve 7 to rotate counterclockwise, driving the driving shaft 8 to rotate counterclockwise, realizing the one-way driving of the driving shaft 8 in the counterclockwise direction.

[0065] The application drives the transmission shaft sleeve 7 to rotate through the one-way bearing 6, thereby driving the driving shaft 8 to rotate one-way, when rotating, the side surface of the transmission shaft sleeve 7 is connected with the inner ring of the one-way bearing 6, there is no sliding friction between the side surface of the transmission shaft sleeve 7 and the inner ring of the one-way bearing 6, which is not easy to be worn, can always keep good assembly precision, and has long service life, at the same time, the transmission shaft sleeve 7 is controlled to cooperate with one of the one-way bearings 6 through the button 13 driving the transmission shaft sleeve 7 to slide in the axial direction, thereby realizing the control of the screwing direction of the driving shaft 8, the screwing direction is adjusted quickly and conveniently, and the front end surface of the button 13 and the rear end surface of the transmission shaft sleeve 7 keep the abutting relationship by the elastic force of the compression spring 12, after long time use, the abutting surface is slightly worn, the wear thickness can be compensated by the expansion and contraction of the compression spring 12, thereby ensuring that the front end surface of the button 13 and the rear end surface of the transmission shaft sleeve 7 always keep good abutting relationship, each component always has good assembly precision, and the application will not fail to work normally because of the wear of the abutting surface of the button 13 and the transmission shaft sleeve 7.

[0066] The application adopts the above-mentioned brand-new mechanism design, the acting part of the acting force for driving the rotation of the driving shaft 8 is the connecting part between the inner ring and the outer ring of the one-way bearing 6, effectively increases the area of the acting surface, the wear of the acting surface can be almost ignored, greatly prolongs the service life of the handle with the button 13 type tight adjusting position type, overcomes the problem that the acting surface of the acting force of the prior art is easy to wear, which leads to the continuous reduction of the assembly precision and finally failure, and seriously shortens the service life of the handle. Meanwhile, the handle is switched in the screwing direction through the button 13, the operation is simple, the switching is quick and convenient, and the abutting surface between the button 13 and the rotating shaft sleeve is the only wear surface of the application. The wear can be compensated by the extension and contraction of the compression spring 12, and the button 13 and the transmission shaft sleeve 7 can always maintain a good abutting state and will not damage the service life of the application due to wear.

[0067] Specifically, the connecting section 11 is a square connecting column, and the transmission shaft sleeve 7 is provided with a square hole, and the square connecting column is telescopically inserted into the square hole.

[0068] The through hole 2 is composed of an axle hole 3, a bearing hole 4 and an assembly hole 5 connected in sequence, the annular protrusion 10 is arranged in the axle hole 3, the one-way bearing 6 is arranged in the bearing hole 4, and the button 13 is telescopically arranged in the assembly hole 5.

[0069] The hole diameter of the bearing hole 4 is greater than that of the axle hole 3, and the hole diameter of the assembly hole 5 is greater than that of the bearing hole 4.

[0070] The hole diameter of the bearing hole 4 is greater than that of the axle hole 3, and the hole diameter of the assembly hole 5 is greater than that of the bearing hole 4, the through hole 2 gradually increases from front to back, and the assembly work of the application is also from front to back or from outside to inside, which corresponds to facilitate the assembly work and convenient operation.

[0071] The button 13 type tight adjusting position type handle further comprises a pressing limiting assembly for keeping the button 13 in a depressed and contracted state or releasing the depressed and contracted state of the button 13.

[0072] The pressing limiting assembly comprises:

[0073] An assembly groove 14 is arranged in the side wall of the assembly hole 5.

[0074] A positioning piece 15 is arranged in the assembly groove 14.

[0075] A sliding groove 16 is arranged in the positioning piece 15 and is arranged in the axial direction.

[0076] A limiting groove 17 is arranged in the positioning piece 15 and is located in front of the sliding groove 16 and communicates with the sliding groove 16.

[0077] A positioning cam 18 is slidably arranged in the sliding groove 16 and is hingedly connected to the button 13.

[0078] The pressing limiting assembly further comprises:

[0079] A stepped counterbore 19 is formed in the right side of the button 13.

[0080] A first rotating shaft 20 is arranged on the left side of the positioning cam 18 and rotatably extends into the stepped counterbore 19.

[0081] A small rotating disc 21 is fixed to the first rotating shaft 20 and arranged in the stepped mouth of the stepped counterbore 19.

[0082] An active groove 22 is formed in the groove bottom of the sliding groove 16.

[0083] A second rotating shaft 23 is arranged on the right side of the positioning cam 18 and is coaxial with the first rotating shaft 20, and the end portion is slidably arranged in the active groove 22.

[0084] The pressing limiting assembly further comprises:

[0085] An avoiding slope 24 is located at the connection between the limiting groove 17 and the sliding groove 16.

[0086] An avoiding groove 25 is arranged at the front end of the limiting groove 17 and communicates with the limiting groove 17.

[0087] Specifically, the width of the limiting groove 17 is greater than the width of the sliding groove 16, the width of the sliding groove 16 is equivalent to the width of the positioning cam 18, and the length of the positioning cam 18 is greater than the width of the positioning cam 18.

[0088] In the actual use of the button 13, when the button 13 is pressed forward, the transmission shaft sleeve 7 is connected with the one-way bearing 6 close to the button 13 and is separated from the one-way bearing 6 away from the button 13. When the button 13 is pressed forward, the positioning cam 18 is in a horizontal state and slides forward along the sliding groove 16, and the second device slides forward along the active groove 22. When the positioning cam 18 reaches above the avoiding slope 24, the front end of the positioning cam 18 loses support and gradually swings down under the influence of its own gravity, and after completely entering the limiting groove 17, the positioning cam 18 swings down by 90° and is in a vertical state. When the button 13 is released, the button 13 is pushed back by the transmission shaft sleeve 7 under the elastic force of the compression spring 12, and drives the positioning cam 18 to move back. Since the positioning cam 18 is in a vertical state, its length is greater than the width of the sliding groove 16 and cannot enter the sliding groove 16 but is clamped in the limiting groove 17, thereby locking the button 13. Figure 3The front end of the transmission shaft sleeve 7 enters the one-way bearing 6 away from the button 13 and is connected with the inner ring of the one-way bearing 6, and remains in this state.

[0089] When the handle needs to be reversed, the button 13 is pressed forward and released. Due to the existence of the avoidance slope 24 and the avoidance groove 25, the positioning cam 18 clamped in the limiting groove 17 moves forward a small distance and swings a certain angle to be inclined. Under the pushing force of the compression spring 12, the lower end of the inclined positioning cam 18 contacts the avoidance slope 24 and is gradually lifted by the avoidance slope 24 to make the positioning cam 18 return to the horizontal state and enter the sliding groove 16 to return to the position before the button 13 is pressed, thereby completing the unlocking of the button 13. The transmission shaft sleeve 7 is extruded by the compression spring 12 and slides away from the one-way bearing 6 away from the button 13 and slides into the one-way bearing 6 close to the button 13 and is connected with it, thereby realizing the reversing of the handle rotation direction.

[0090] The button 13 type tight fixing adjustable position type handle further comprises a flat washer 26 clamped between the compression spring 12 and the transmission shaft sleeve 7.

[0091] The flat washer 26 can avoid damage to the transmission shaft sleeve 7 by the end of the compression spring 12 during rotation.

[0092] The button 13 type tight fixing adjustable position type handle further comprises:

[0093] An assembly step 27 is arranged in the handle head 1.

[0094] A fixed cover plate 28 is arranged in the assembly step 27 and is used to cover the through hole 2. The rear end of the button 13 extends out of the fixed cover plate 28.

[0095] A screw 29 passes through the fixed cover plate 28 and is screwed with the handle head 1.

[0096] The button 13 type tight fixing adjustable position type handle further comprises a handle 30 fixedly connected to one end of the handle head 1.

[0097] Embodiment 2

[0098] The difference between the embodiment and the embodiment 1 is that the front end of the transmission shaft sleeve 7 is provided with a ratchet wheel, and the inner ring of the one-way bearing 6 is an inner recessed ratchet wheel matched with the ratchet wheel. The transmission shaft sleeve 7 can slide forward to leave the one-way bearing 6 close to the button 13, slide into the one-way bearing 6 far from the button 13, be sleeved in the inner recessed ratchet wheel and be engaged with the inner recessed ratchet wheel under the action of the button 13. Conversely, the unlocking button 13 pushes the transmission shaft sleeve 7 to slide backward under the action of the compression spring 12, the ratchet wheel of the transmission shaft sleeve 7 slides out of the one-way bearing 6 far from the button 13 and enters the one-way bearing 6 close to the button 13, and is connected with the one-way bearing 6.

[0099] Embodiment 3

[0100] The difference between the embodiment and the embodiment 1 is that the front end of the transmission shaft sleeve 7 is provided with a ratchet wheel, and the inner ring of the one-way bearing 6 is an inner recessed ratchet wheel matched with the ratchet wheel. The transmission shaft sleeve 7 can slide forward to leave the one-way bearing 6 close to the button 13, slide into the one-way bearing 6 far from the button 13, be sleeved in the inner recessed ratchet wheel and be engaged with the inner recessed ratchet wheel under the action of the button 13. Conversely, the unlocking button 13 pushes the transmission shaft sleeve 7 to slide backward under the action of the compression spring 12, the ratchet wheel of the transmission shaft sleeve 7 slides out of the one-way bearing 6 far from the button 13 and enters the one-way bearing 6 close to the button 13, and is connected with the one-way bearing 6.

[0101] The above embodiment is a preferred implementation scheme of the present application, in addition to this, the present application can be realized in other ways, under the premise of not departing from the concept of the present application, any obvious replacement is within the protection scope of the present application.

Claims

1. A handle characterized by: The utility model relates to a handle head (1) is provided with through -hole (2) through, two one -way bearing (6) are opposite in rotation direction, are all set in the through -hole (2) and are connected with through -hole (2) cooperation, drive shaft sleeve (7) can be relative two one -way bearing (6) inner ring towards axial direction sliding, and with one of one -way bearing (6) inner ring cooperation and connection, drive shaft (8) includes connected screw rod (9) and connecting section (11), and the connecting place of screw rod (9) and connecting section (11) is provided with annular protrusion (10), and the end of connecting section (11) is set in drive shaft sleeve (7), and drive shaft sleeve (7) can be relative connecting section (11) towards axial direction sliding, compression spring (12) is set in connecting section (11) outside, and is clamped between annular protrusion (10) and drive shaft sleeve (7), button (13) is set in the through -hole (2) telescopicly, and the front end surface of button (13) is in butt joint with the rear end surface of drive shaft sleeve (7). The through -hole (2) is composed of shaft hole (3), bearing hole (4) and assembly hole (5) sequentially, the annular protrusion (10) is arranged in the shaft hole (3), the one -way bearing (6) is arranged in the bearing hole (4), and the button (13) is arranged in the assembly hole (5) telescopicly. The bearing hole (4) is larger than the shaft hole (3), and the assembly hole (5) is larger than the bearing hole (4). The handle further comprises: a pressing limiting component for keeping the button (13) in a depressed state or releasing the depressed state of the button (13). The pressing limiting component comprises: an assembly groove (14) formed in the side wall of the assembly hole (5); a positioning member (15) arranged in the assembly groove (14); 2. A handle according to claim 1, wherein: a sliding groove (16) formed in the positioning member (15) and extending in the axial direction; 3. A handle according to claim 2, wherein: a limiting groove (17) formed in the positioning member (15) and located in front of the sliding groove (16) and communicating with the sliding groove (16); 4. A handle according to claim 2, wherein: a positioning cam (18) slidably arranged in the sliding groove (16) and hingedly connected to the button (13) on the side surface.

5. A handle according to claim 4, wherein: The pressing limiting component further comprises: a stepped counterbore (19) formed in the right side surface of the button (13); a first rotating shaft (20) arranged on the left side of the positioning cam (18) and rotatably extending into the stepped counterbore (19); a small rotating disc (21) fixed to the first rotating shaft (20) and arranged in the stepped mouth of the stepped counterbore (19); a movable groove (22) formed in the groove bottom of the sliding groove (16); a second rotating shaft (23) arranged on the right side of the positioning cam (18) and on the same axis as the first rotating shaft (20), and the end portion of the second rotating shaft (23) is slidably arranged in the movable groove (22).

6. A handle according to claim 5, wherein: The pressing limiting component further comprises: an avoiding inclined surface (24) located at the connection between the limiting groove (17) and the sliding groove (16); an avoiding groove (25) arranged at the front end of the limiting groove (17) and communicating with the limiting groove (17). The handle further comprises a flat washer (26) clamped between the compression spring (12) and the drive shaft sleeve (7). ​ ​ 7. A handle according to claim 6, wherein: ​ ​ ​ 8. A handle according to claim 1, wherein: ​ 9. A handle according to claim 1, wherein: The handle further comprises: an assembly step (27) arranged on the handle head (1); a fixed cover plate (28) arranged in the assembly step (27) and used for covering the through hole (2), the rear end of the button (13) extending out of the fixed cover plate (28); a screw (29) penetrating through the fixed cover plate (28) and being screwed with the handle head (1).

10. A handle according to claim 1, wherein: The handle further comprises a handle (30) fixedly connected to one end of the handle head (1).

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