WO2014161224A1

WO2014161224A1 - Ratchet wheel mechanism

Info

Publication number: WO2014161224A1
Application number: PCT/CN2013/075881
Authority: WO
Inventors: 丁有翔; 忠诚; 王七月
Original assignee: 深圳日海通讯技术股份有限公司
Priority date: 2013-04-03
Filing date: 2013-05-20
Publication date: 2014-10-09
Also published as: CN203202149U

Abstract

Disclosed is a ratchet wheel mechanism, comprising a first reset spring (1), a rotary rod (2) and a ratchet wheel (3), wherein the first reset spring (1) is connected to the rotary rod (2), the rotary rod (2) is rotatably connected to the ratchet wheel (3), and a ratchet pawl (21) mating the ratchet wheel (3) is arranged on the rotary rod (2); and the rotary rod (2) is rotated under the action of a driving force, the rotary rod (2) is reset under the action of a restoring force of the first reset spring (1) when the driving force disappears, and the ratchet wheel (3) is pushed to rotate by the rotary rod (2) via the ratchet pawl (21). The ratchet wheel mechanism is simple in structure, low in costs, and easy in operation.

Description

Ratchet mechanism

Technical field

The present invention relates to an intermittent motion mechanism, and more particularly to a ratchet mechanism.

Background technique

The ratchet mechanism is widely used in various industries. However, the ratchet mechanism in the prior art has the defects of complicated structure and high cost.

technical problem

The technical problem to be solved by the present invention is that the ratchet mechanism of the prior art has the defects of complicated structure and high cost, and provides a ratchet mechanism. The ratchet mechanism of the present invention overcomes the above drawbacks, simplifies the structure, and reduces the cost.

Technical solution

The technical solution adopted by the present invention to solve the technical problem thereof is to construct a ratchet mechanism including a first return spring, a rotating rod and a ratchet; the first return spring is coupled to the rotating rod, and the rotating rod and the rotating rod The ratchet is rotatably connected, and the rotating rod is provided with a pawl that cooperates with the ratchet; the rotating rod rotates under the driving force, and the driving force disappears, and the rotating rod is reset by the restoring force of the first return spring The rotating rod pushes the ratchet by the pawl.

In the ratchet mechanism of the present invention, the ratchet mechanism further includes a mounting seat, the ratchet is disposed on the mounting seat, and one end of the first return spring is connected to the mounting seat, and the other end is rotated Rod connection.

In the ratchet mechanism of the present invention, the number of the first return springs is at least one.

In the ratchet mechanism of the present invention, the number of the first return springs is two, which are respectively connected to both sides of the rotating rod.

In the ratchet mechanism of the present invention, the mounting seat is further provided with a non-returning hand, and the non-returning hand is engaged with the ratchet.

In the ratchet mechanism of the present invention, the ratchet mechanism further includes a lock mechanism that locks the mount in a sliding stroke that urges the mount.

In the ratchet mechanism of the present invention, the ratchet mechanism further includes a base, and the base is slidably coupled to the mount.

In the ratchet mechanism of the present invention, the locking mechanism includes a spring lock and a spring buckle; the spring lock is disposed in a mounting hole formed in the mounting seat; the base is opened and the mounting hole is located Corresponding through holes, the springs are buckled in the through holes.

In the ratchet mechanism of the present invention, the ratchet mechanism further includes a reset mechanism, the reset mechanism includes a second return spring, the second return spring is disposed in the mount, and the second return spring One end is fixed to the mounting seat, and the other end is fixed to the base.

In the ratchet mechanism of the present invention, an upper cover is further rotatably coupled to the base, and the upper cover is fixed with a stopper for driving the rotating rod; the upper cover has a rotating end and a free end, The rotating end is rotatably connected to the base; the rotating end is fixed with a push handle for sliding the mounting seat during the rotating process of the upper cover.

Beneficial effect

The ratchet mechanism embodying the present invention has the following beneficial effects: When the rotating rod is driven, the rotating rod will rotate a certain angle until the pawl card and the ratchet on the rotating rod; when the force for driving the rotating rod disappears, the rotating rod will be reset by the first return spring, in the process The pawl pushes the ratchet to rotate. The ratchet mechanism of the invention simplifies the structure, reduces the cost, and has the characteristics of small manual operation and easy operation of the operator.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a first embodiment of a ratchet mechanism of the present invention;

Figure 2 is a schematic view showing the structure of the rotating lever of Figure 1;

Figure 3 is a schematic structural view of the rotating rod of Figure 2 when reset;

Figure 4 is a schematic view showing the structure of a second embodiment of the ratchet mechanism of the present invention;

Figure 5 is a schematic view showing the structure of the upper cover and the base of Figure 4;

Figure 6 is a schematic view showing the structure of the push handle pushing the mounting seat of Figure 4;

Figure 7 is an enlarged cross-sectional view taken along line A in Figure 6;

Figure 8 is a schematic structural view of the pressing handle of Figure 4;

Figure 9 is a schematic structural view of the reset mechanism of Figure 4;

Figure 10 is a schematic view showing the structure of the mounting seat of Figure 4 sliding on the reset stroke;

Figure 11 is a schematic view showing the structure of the stopper driving rotary lever of Figure 10;

In the figure: 1- first return spring; 2-turn rod; 21-pawl; 3- ratchet; 4- mount; 41-mounting hole; 5- stop card player;

6- Base; 61-through hole, 62-upper cover, 63-stop, 64-rotating end, 65-free end, 66-push handle, 67-handle; 68-squeezing;

7- locking mechanism; 71-spring lock, 72-spring buckle; 8-reset mechanism; 81-second return spring.

BEST MODE FOR CARRYING OUT THE INVENTION

For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.

Example 1

As shown in FIG. 1 to FIG. 3, FIG. 1 is the embodiment. 2 is a schematic structural view of the rotating rod 2 in FIG. 1; FIG. 3 is a schematic structural view of the rotating rod 2 in FIG.

The ratchet mechanism of the embodiment includes a first return spring 1, a rotating rod 2 and a ratchet 3; the first return spring 1 is coupled to the rotating rod 2, and the rotating rod 2 is rotatably coupled with the ratchet 3, and the rotating rod 2 is provided with a ratchet 3 cooperate with the pawl 21; the rotating rod 2 rotates under the action of the urging force, and the urging force disappears, the rotating rod 2 is reset under the restoring force of the first return spring 1, and the rotating rod 2 pushes the ratchet 3 through the pawl 21 Turn.

The number of the first return springs 1 is at least one. In this embodiment, the number of the first return springs 1 is two, which are respectively connected to both sides of the rotating rod 2.

The rotating rod 2 is rotatably connected to the center of the ratchet 3, and the top of the rotating rod 2 is fixed to the pawl 21, and the fixing manner may be welding or snapping.

As shown in FIG. 2, when the rotating lever 2 is subjected to the urging force, rotation will occur until the pawl 21 and the ratchet on the ratchet 3 are stuck; as shown in FIG. 3, the urging force disappears, and the rotating lever 2 is first. The restoring force of the return spring 1 is reset, and the rotating lever 2 pushes the ratchet 3 to rotate by the pawl 21.

Example 2

As shown in Figure 4-11. In the present embodiment, the ratchet mechanism of Embodiment 1 is applied to a fiber cutting device.

The ratchet mechanism further includes a mounting seat 4, and the ratchet 3 is disposed on the mounting seat 4. The first return spring 1 is connected to the mounting seat 4 at one end and to the rotating lever 2 at the other end.

The number of the first return springs 1 is at least one. In this embodiment, the number of the first return springs 1 is two, which are respectively connected to both sides of the rotating rod 2. Preferably, the axial directions of the two first return springs 1 should coincide with the straight line of the sliding stroke of the mounting seat 4, so that the first return spring 1 can provide the best restoring force, ensuring that the rotating rod 2 is reset in a timely and efficient manner. .

The ratchet mechanism also includes a base 6 that is slidably coupled to the mount 4. The base 6 is also rotatably connected with an upper cover 62. The upper cover 62 is fixed with a stopper 63 for driving the rotating rod 2; the upper cover 62 has a rotating end 64 and a free end 65, and the rotating end 64 is rotatably connected with the base 6; The end 64 is secured with a push handle 66 for urging the mounting seat 4 to slide during rotation of the upper cover 62. The ratchet 3 can also be attached to the blade 9, thereby using the ratchet mechanism of the present embodiment in a fiber cutting device for cutting the optical fiber. Of course, the use of the ratchet mechanism of the present invention is not limited thereto.

The manner in which the ratchet 3 is fixed to the blade 9 can be achieved by welding or screwing. The manner in which the ratchet 3 is rotatably coupled to the rotating lever 2 can be achieved by rotating the shaft. The manner in which the pawl 21 is fixed to the rotating lever 2 can also be achieved by welding or screwing.

When the rotating lever 2 is blocked by the upper cover 62 during the sliding stroke, the rotating lever 2 rotates in a direction opposite to the sliding stroke, and after the rotation, the pawl 21 is engaged with the ratchet 3; when the blocking is released, the rotating lever 2 is in two The returning spring 1 is reset by the restoring force of the return spring 1, and the rotating rod 2 pushes the ratchet wheel 3 to rotate in one direction, and the ratchet wheel 3 drives the blade 9 to rotate by a set angle to change the contact surface of the blade 9 to cut the optical fiber.

In addition, the upper cover 62 is fixed with a stopper 63 which is located below the upper cover 62 and above the sliding stroke for driving the rotating lever 2 in the sliding stroke. The stopper 63 may be integrally formed with the upper cover 62, or may be fixed to the lower surface of the upper cover 62 by welding or screwing.

Further: The upper cover 62 is disposed above the base 6, and the upper cover 62 is rotatably coupled to the base 6. The manner in which the upper cover 62 is rotatably coupled to the base 6 can be achieved by a rotating shaft. In some embodiments, the upper cover 62 is rotatably coupled to the base 6. The method can also be realized by a hinge.

In this embodiment, as shown in FIG. 5, the base 6 includes opposite upper and lower bottom surfaces, and a supporting surface disposed between the upper bottom surface and the lower bottom surface. The upper cover 62 is rotatably connected to the upper bottom surface, the mounting seat 4 is slidably disposed on the lower bottom surface, and the upper bottom surface is provided with a through hole for exposing the blade 9 of the mounting seat 4, and the through hole is located opposite to the upper cover 62.

The manner in which the mounting seat 4 is slidably disposed on the lower bottom surface can be achieved by the manner in which the sliding rail cooperates with the sliding slot. For example, a sliding rail is disposed on the lower bottom surface, and a sliding slot that cooperates with the sliding rail is disposed below the mounting base 4. The structure of the mount 4 can be seen in FIG.

The upper cover 62, the base 6, and the mount 4 can be made of stainless steel, although the material is not limited thereto.

The blade 9 has a disk shape, that is, the blade 9 has a circular shape. The blade 9 can employ a conventional blade of a prior art fiber cutting device. The unidirectional rotation setting angle of the blade 9 is mainly determined by the ratchet mechanism 5, which will be described in detail below.

The ratchet mechanism of this embodiment further includes a locking mechanism 7, and the fiber cutting device includes a reset mechanism 8. The locking mechanism 7 and the reset mechanism 8 will be described in detail below:

Locking mechanism 7: As shown in FIG. 6, FIG. 7, and FIG. 8, FIG. 6 is a schematic structural view of the push handle 66 of FIG. 4 for sliding the mounting seat 4; FIG. 7 is an enlarged cross-sectional view of FIG. 6; FIG. Schematic diagram of the handle 67.

The upper cover 62 has a rotating end 64 and a free end 64. The rotating end 64 is rotatably coupled to the base 6. The rotating end 64 is fixed with a push handle 66 for the upper cover 62 to push the mounting seat 4 to slide during the rotation. The push handle 66 may be integrally formed with the upper cover 62, or may be fixed to the rotating end 64 by welding or screwing.

The lock mechanism 7 is for locking the mount 4 during the sliding stroke of the push handle 66 to push the mount 4.

The locking mechanism 7 includes a spring lock 71 and a spring buckle 72; The spring lock 71 is disposed in the mounting hole 41 formed in the mounting seat 4; the base 6 defines a through hole 61 corresponding to the position of the mounting hole 41, and the spring button 72 is disposed in the through hole 61.

Further, the mounting seat 4 is provided with a mounting hole 41, and the spring lock 71 is disposed in the mounting hole 41;

The base 6 is provided with a through hole 61 corresponding to the position of the mounting hole 41. One end of the spring button 72 is disposed in the through hole 61, and the other end protrudes through the through hole 61, and the end of the spring buckle 72 extending through the through hole 61 is free. The position of the end 64 corresponds to the position; in the sliding stroke, the mounting hole 41 is opposite to the through hole 61, the spring lock 71 is springed into the through hole 61, and the spring lock 71 abuts against the spring buckle 72 to lock the mounting seat 4; When the end 64 presses the spring buckle 72, the spring catch 72 pushes the spring lock 71 away from the through hole 61 to release the lock.

Reset mechanism 8: As shown in FIG. 9, FIG. 10 and FIG. 11, FIG. 9 is a schematic structural view of the reset mechanism 8 of FIG. 4; FIG. 10 is FIG. FIG. 11 is a schematic structural view of the stopper 63 driving the rotating rod 2 in FIG.

For clarity of description, firstly, the sliding stroke of the mounting seat 4 is explained: the sliding stroke includes a locking stroke and a reset stroke in which the sliding direction faces;

Locking stroke: the push handle 66 pushes the mounting seat 4 to slide from the initial state to the locking mechanism 7 to lock the mounting seat 4;

Reset stroke: The stroke in which the mount 4 is unlocked by the lock state and slides to the initial state.

Next, the reset mechanism 8 is described: the reset mechanism 8 is used to push the mount 4 back to the initial state during the reset stroke to perform resetting.

The reset mechanism 8 includes a second return spring 81. The second return spring 81 is disposed in the base 6. The second return spring 81 has one end fixed to the base 6 and the other end fixed to the mounting seat 4;

In the locking stroke, the mounting seat 4 is compressed by the push handle 66 to compress the second return spring 81;

During the reset stroke, the second return spring 81 releases its elastic potential to push the mount 4 back to the initial state for resetting; and during the reset stroke, the blade 9 cuts the fiber, and then the ratchet mechanism 5 drives the blade 9 to unidirectionally rotate. Angle, changing the blade 9 cuts the contact surface of the fiber.

In addition, the free end 64 is rotatably connected with a handle 67, and the handle 67 is provided with a pressing portion 68 for abutting the end of the spring buckle 72 extending through the through hole 61, and the handle 67 is used for the pressing portion When the spring buckle 72 is abutted, the spring buckle 72 is pressed, so that the spring buckle 72 pushes the spring lock 71 away from the through hole 61 to release the lock.

Secondly, the operation process of the ratchet mechanism of the embodiment is explained, including the following steps:

S1: placing the optical fiber to be cut on the base 6, closing the upper cover 62, and the optical fiber is located between the upper cover 62 and the base 6;

S2: pushing the mounting seat 4 to slide;

S3 During the sliding stroke of the mount 4, the blade 9 cuts the optical fiber; and the ratchet mechanism 5 is blocked during the sliding stroke of the mount 4, the ratchet mechanism 5 rotates; when the block is released, the ratchet mechanism 5 resets and drives the blade 9 Rotate and change the blade 9 to cut the contact surface of the fiber.

In the method for cutting an optical fiber of the ratchet mechanism of the present invention, the method specifically includes the following steps:

S1.1 : Rotating the upper cover 62, during the rotation, the push handle 66 pushes the mounting seat 4 to slide from the initial state, and the mounting seat 4 compresses the reset mechanism 8;

S1.2: sliding to the locking mechanism 7, the locking mechanism 7 locks the mounting seat 4;

S1: placing the optical fiber on the base 6, closing the upper cover 62, and the optical fiber is located between the upper cover 62 and the base 6;

S2 : the free end 64 is pressed, the locking mechanism 7 is unlocked by the locking mechanism 7 , and after the unlocking is released, the mounting seat 4 is slid by the pushing mechanism 8 and is slid to the initial state to be reset;

S3 During the reset stroke of the mount 4, the blade 9 cuts the optical fiber; and when the ratchet mechanism 5 is blocked, it rotates; when the blocking is released, the ratchet mechanism 5 is reset and the blade 9 is rotated to change the contact surface of the blade 9 to cut the optical fiber.

Further: 1 Open the upper cover 62. During the opening of the upper cover 62, the push handle 66 pushes the mount 4 to slide over the lock stroke. In the locking stroke, the locking mechanism 7 locks the locking mount 4: the mounting hole 41 and the through hole 61, the spring lock 71 springs into the through hole 61, and the spring lock 71 abuts against the spring buckle 72 to lock Mounting seat 4. In the above-described locking stroke, the mounting seat 4 compresses the second return spring 81 under the push of the push handle 66, and after the locking mechanism 7 locks the mounting seat 4, the compression deformation of the second return spring 81 is maximized, and The locking of the locking mechanism 7 and the elastic potential generated by the second return spring 81 cannot push the mounting seat 4 to reset at this time. The fiber to be cut is placed on the base 6.

2 The upper cover 62 is closed, and the closed pressing portion 68 abuts against the end of the spring lock 71 that protrudes through the through hole 61. When the handle 67 is pressed, the handle 67 presses the spring catch 72 so that the spring catch 72 pushes the spring lock 71 away from the through hole 61 to release the lock.

3 When the lock is released, the elastic potential energy generated by the second return spring 81 will push the mount 4 to slide on the reset stroke to be reset. During this reset stroke, the rotating lever 2 will be blocked by the stop 63. Due to the blocking by the stopper 63, the rotating lever 2 will rotate in the opposite direction (the direction of the locking stroke) from the reset stroke, and the pawl 21 will be engaged with the ratchet 3 after the rotation. When the barrier is released (opening the upper cover 62 and separating the stopper 63 from the rotating lever 2), the rotating lever 2 is reset by the restoring force of the first return spring 1, and the rotating lever 2 pushes the ratchet 3 to rotate in one direction, and the ratchet 3 drives the blade. 9 One-way rotation sets the angle, changing the contact surface of the blade 9 to cut the fiber.

The one-way rotation of the blade 9 is determined by the angle of the teeth of the ratchet 3, that is, if there are 12 evenly distributed teeth around the ratchet 3, the blade 9 will rotate 12 in one rotation cycle (one circumference). Times, every 30 degrees. Of course, the number of teeth of the ratchet 3 is not limited to 12, and may be other numbers, for example, 16 or 6.

In some embodiments, as shown in FIG. 2 and FIG. 3, a non-returning hand 5 can also be disposed under the ratchet 3, and the checking hand 5 can restrict the reverse rotation of the ratchet 3, that is, the ratchet 3 It can only rotate in the direction of the lock stroke and cannot rotate in the direction of the reset stroke.

In addition, it should be noted that the ratchet mechanism of the embodiment is in the locking stroke. The rotating lever 2 is not blocked by the stopper 63, and the blade 9 does not rotate, thus avoiding the problem that the rotating lever 2 is easily damaged if it is subjected to a force opposite to the direction of its rotation. During the reset stroke, The rotating rod 2 drives the blade 9 to rotate by a set angle, changes the contact surface of the blade 9 to cut the optical fiber, and cuts the optical fiber.

In some embodiments, the ratchet mechanism may include a first return spring 1, a rotating rod 2 and a ratchet 3; the first return spring 1 is coupled to the rotating rod 2, and the rotating rod 2 is rotatably coupled to the ratchet 3, and the rotating rod 2 is rotated. A pawl 21 that cooperates with the ratchet 3 is provided thereon. The connection method is the same as above. In these embodiments, the use of the ratchet mechanism is not limited to fiber-optic cutting devices, but may be used on other devices.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Embodiments of the invention

Industrial applicability

Sequence table free content

Claims

A ratchet mechanism, comprising: a first return spring (1), a rotating rod (2) and a ratchet (3); the first return spring (1) is coupled to the rotating rod (2) The rotating rod (2) is rotatably coupled to the ratchet (3), and the rotating rod (2) is provided with a pawl (21) that cooperates with the ratchet (3); the rotating rod (2) is pushing The rotation occurs under the action of the force, and the driving force disappears, and the rotating rod (2) is reset by the restoring force of the first return spring 1, and the rotating rod (2) pushes the said pawl (21) The ratchet (3) rotates.
A ratchet mechanism according to claim 1, wherein said ratchet mechanism further comprises a mounting seat (4), said ratchet (3) being provided on said mounting seat (4), said first return spring ( 1) One end is connected to the mount (4) and the other end is connected to the rotating lever (2).
A ratchet mechanism according to claim 2, characterized in that the number of said first return springs (1) is at least one.
The ratchet mechanism according to claim 3, characterized in that the number of the first return springs (1) is two, which are respectively connected to both sides of the rotating lever (2).
The ratchet mechanism according to claim 2, wherein the mounting seat (4) is further provided with a non-returning hand (5), and the non-returning hand (5) cooperates with the ratchet (3) .
The ratchet mechanism according to claim 2, wherein said ratchet mechanism further comprises a lock mechanism (7) for locking said mount (4) in a sliding stroke of said mount (4) .
The ratchet mechanism according to claim 6, wherein the ratchet mechanism further comprises a base (6), the base (6) being slidably coupled to the mount (4).
The ratchet mechanism according to claim 7, wherein the locking mechanism (7) comprises a spring lock (71) and a spring buckle (72); the spring lock (71) is provided on the mounting seat (4) a mounting hole (41) provided in the upper portion; the base (6) is provided with a through hole (61) corresponding to the position of the mounting hole (41), and the spring button (72) is disposed in the through hole (61) Medium.
A ratchet mechanism according to claim 8, wherein said ratchet mechanism further comprises a reset mechanism (8), said reset mechanism (8) comprising a second return spring (81), said second return spring (81) Provided in the mounting seat (4), one end of the second return spring (81) is fixed to the mounting seat (4), and the other end is fixed to the base (6).
The ratchet mechanism according to claim 9, wherein the base (6) is further rotatably connected with an upper cover (62), and the upper cover (62) is fixed with a stopper (63) for driving. The rotating rod (2); the upper cover (62) has a rotating end (64) and a free end (65), the rotating end (64) is rotatably connected with the base (6); 64) A push handle (66) is secured for urging the mount (4) to slide during rotation of the upper cover (62).