TWM474602U - Structural improvement of ratchet joint - Google Patents

Description

Structural improvement of ratchet joint

This creation is related to a ratchet device, especially a structural improvement of a ratchet joint that can withstand large torque and easy assembly.

A ratchet mechanism of the prior art, such as the "ratchet drive mechanism" issued by the Department of Health, which was issued on September 11, 1988, and which discloses a ratcheting device for lateral rotation control reversing function, which includes a body having a circular pivoting seat at one end thereof, a blocking body on one side of the pivoting seat, and a slot having a two-way outer side through the other side of the pivoting socket, the two slots Inserting a pair of scorpions respectively, the two scorpions are respectively pushed outward by a spring disposed in the slot; an adjusting ring is sleeved on the outer side of the pivoting seat of the body, and the inner edge of the adjusting ring has a clamping groove for engaging the blocking body, and the adjusting ring has two adjusting grooves respectively for a part of the tweezers to extend into the inner side of the adjusting ring, and the adjacent sides of the adjusting grooves are respectively guided by a bevel; The body is pivotally disposed at one end of the pivoting seat of the body, and the combined body has a set of inner ring gears disposed on one side of the pivoting seat and on one side of the adjusting ring, and the inner ring gear has a plurality of inner portions and the outer part of the inner ring The teeth that are stuck to each other. The lateral rotation design is quite complicated, the use of more components increases the assembly steps, and the components require complicated processing, thus having a lack of production cost.

Also known as a ratchet mechanism, such as the "ratchet device" of the No. M335770, issued by the Department of Economics on June 21, 1997, a ratchet device comprising a joint and a ratchet; the main purpose is that the joint is internally provided with a sleeve The hole is sleeved on the ratchet wheel, and the inner surface of the sleeve hole is provided with a plurality of inner ratchet teeth; the center of the ratchet wheel is provided with a sleeve hole, and the circular head of the ratchet wheel is provided with a slot. The utility model can be used for accommodating a card block, a spring and a swing block, and the outer part of the circular head is provided with a control ring, and the circular head is provided with a positioning steel ball and a spring at the control ring for use as a positioning control ring for steering; There are two inclined faces on one side of the block, so as to be attached to the slot left or right, and a plurality of external ratchet teeth are continuously arranged on the outer arc surface on the other side of the card block, so as to be positive with the inner ratchet of the joint. One-way biting to the opposite or reverse direction, the other side of the outer side of the outer ratchet is provided with two insertion holes, which are used as the spring's two elastic feet; the spring is in the shape of a plaque, with two The elastic foot, the upper part of the spring is fixed to the positioning seam in the center of the swing block, and the second elastic foot is inserted into the two insertion holes of the clamping block to provide proper buckling action of the clamping block; the inner surface of the swinging block is provided The slot is adapted to receive the spring, and a positioning slot is arranged in the middle of the receiving slot, and is used for mounting the spring. A fixing body is arranged under the positioning slot, and the two elastic legs are fixed for the spring, and the inner surface of the swinging block is provided with two The inclined surface is attached to the slit in the left or right direction; the coupling ring is provided with a coupling groove on one side thereof, and is combined with the swinging block, and the positioning bead groove is arranged on the other side of the control ring, and is rotated to the left or right as a control ring. When used, it is used for positioning steel balls. Looking at the above-mentioned conventional structure, it is not difficult to find that there are still some shortcomings. The main reason is as follows: the side of the card has two inclined faces on one side, so that it can be attached to the slot left or right, and the card A plurality of external ratchet teeth are continuously arranged on the outer arc surface on the other side of the block, so that the inner ratchet teeth of the joint are in a forward or reverse one-way bite, because the card block is movable in the slot Therefore, when subjected to a large torsional force, the card block is prone to chipping or slipping, making it impossible to stably perform one-way pulling.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the author has finally achieved a practical and practical creation.

The technical problem to be solved by the present invention is to provide a structural improvement of the ratchet joint in view of the above-mentioned shortcomings existing in the prior art.

A first body is formed with a cylinder at one end, and a semicircular groove is formed on a circumferential surface of the cylinder, and the cylinder defines a shaft hole at a semicircular groove in the same axial direction, and the cylinder is opened on a side opposite to the semicircular groove. a perforation is arranged, and a spring and a ball are sequentially disposed at the perforation. A ratchet is fan-shaped, and a tooth portion is formed on both sides of the arc surface, and a sliding surface is formed between the two tooth portions, and the ratchet is formed. A shaft rod is disposed, and the shaft rod is disposed to the shaft hole, and the ratchet is pivoted in the semicircular slot. A fixing slot and a switching slot are symmetrically formed on the inner edge of the control ring, and the control ring sleeve is sleeved. At the cylinder of the first body, and the switching groove is in contact with the ball, and the fixing groove is provided with an elastic member, and one end of the elastic member is disposed on the sliding surface of the ratchet, and the second body is formed with a receiving chamber. And forming a ring tooth portion on the inner wall surface of the accommodating chamber, and the second body accommodating chamber The sleeve is sleeved on the cylinder of the first body, so that the ring tooth portion can tooth the tooth portion of the ratchet tooth.

Wherein, the first body is formed with a polygonal rod at the other end of the cylinder, and the polygonal rod forms a connection to the sleeve, and the second body is formed with a slit at the opposite end of the receiving chamber, and is formed on both sides of the slot A through hole is provided, that is, a handle that can be connected by a slot and a through hole. The first body has a screw hole on the top surface of the cylinder, and the second body is provided with a continuous perforation at the bottom of the groove facing the receiving groove, and the second hole is screwed to the screw hole by the through hole, thereby forming the first The connection between the body and the second body.

The first body is formed with a slot on the other end of the cylinder, and a through hole is formed on both sides of the slot, that is, a handle that can be connected by the slot and the through hole, and the second body is in the receiving chamber. The opposite end is formed with a polygonal rod and the polygonal rod forms a connection to the sleeve. The first body has a first ring groove at the top end of the cylinder, and a C-shaped fastener is disposed at the first ring groove, and the second body defines a second ring groove at the bottom edge of the accommodating chamber, and the first body The second body is sleeved on the first body to allow the C-shaped fastener to be clamped between the first and second ring grooves.

Wherein, the control ring is formed with a rough surface on the outer surface.

The first main purpose of the present invention is that the first body is provided with a semi-circular slot, and the ratchet is pivoted to the semi-circular slot by the shaft, and the first body sleeve is provided with the control ring and the second body, and is controlled by The ring controls the yaw direction of the ratchet, so that the tooth portion on one side of the ratchet meshes with the ring gear portion of the second body, and when the second body rotates against the toothing direction, the ring gear portion pushes the ratchet tooth The outer side of the tooth portion increases the yaw amplitude of the ratchet, and then the back surface of the ratchet teeth is pressed against the semicircular groove of the first body, and the second portion is blocked by the pivoting of the shaft and the semicircular groove. The physical force directly pushes the cylinder to form a synchronous linkage between the first body and the second body, thereby increasing the maximum torsion force thereof, and the situation of chipping or sliding teeth will not occur, so as to improve the stability of use.

The second main purpose of the present invention is that the ratchet is pivotally disposed on the first body by the shaft, and the control ring and the second body are directly sleeved to the cylinder of the first body, so that the assembly can be completed quickly. The connection can be achieved by simple bolt-on or C-shaped fasteners, which can improve the assembly convenience and reduce the production cost.

Other objects, advantages and novel features of the present invention will become more apparent from the detailed description and the accompanying drawings.

[this creation]

10‧‧‧First Ontology

11‧‧‧Cylinder

111‧‧‧ screw holes

112‧‧‧First ring groove

12‧‧‧ semi-circular slot

121‧‧‧Axis hole

13‧‧‧Perforation

14‧‧‧ Spring

15‧‧‧ balls

16‧‧‧Polygon rod

17‧‧‧ slotting

18‧‧‧through hole

19‧‧‧C-shaped fasteners

20‧‧‧ ratchet

21‧‧‧ teeth

22‧‧‧Slip surface

23‧‧‧ shaft

30‧‧‧Control loop

31‧‧‧ fixing slot

32‧‧‧Switching slot

33‧‧‧Flexible parts

34‧‧‧Rough surface

40‧‧‧Second ontology

41‧‧‧ housing room

42‧‧‧ Ring tooth

43‧‧‧ slotting

44‧‧‧through hole

45‧‧‧through holes

46‧‧‧Bolts

47‧‧‧ Polygon rod

48‧‧‧second ring groove

The first picture is a perspective view of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a side view of the creation.

Figure 4 is a cross-sectional view of the cross section taken along line A-A of Figure 3;

Figure 5 is a schematic diagram of the actuation of the present section in Figure 3A-A (1).

Figure 6 is a schematic diagram of the actuation of the present section in Figure 3A-A (2).

Figure 7 is a schematic diagram of the actuation of the creation of the section A-A in Figure 3 (3).

Figure 8 is a perspective exploded view of another embodiment of the present creation.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [Simplified Description of the Drawings] for details: First, please see the views shown in Figures 1 and 2. The structure of the ratchet joint is improved, comprising: a first body 10, a ratchet 20, a control ring 30 and a second body 40. A first body 10 is formed with a cylinder 11 at one end, the first The main body 10 defines a screw hole 111 on the top surface of the cylinder 11, and a semicircular slit 12 is formed on the circumferential surface of the cylinder 11, and the cylinder 11 defines a shaft hole 121 at the semicircular slit 12 in the same axial direction, and the cylinder A through hole 13 is defined in one side of the opposite semicircular slot 12, and a spring 14 and a ball 15 are sequentially disposed at the through hole 13. The first body 10 is formed with a polygonal rod 16 at the other end of the cylinder 11, and A pair of polygonal rods 16 are formed to connect the sleeves (not shown). A ratchet 20 is fan-shaped and has a tooth portion 21 formed on both sides of the curved surface, and a sliding surface 22 is formed between the two tooth portions 21, and The ratchet 20 is provided with a shaft 23 and is threaded to the shaft hole 121 by the shaft 23 . The spurs 20 are pivotally disposed in the semicircular grooving slot 12, and a fixing slot 31 and a switching slot 32 are symmetrically formed on the inner edge of the control ring 30, and the control ring 30 is sleeved on the cylinder 11 of the first body 10. And the elastic groove 33 is disposed at the fixing groove 31, and one end of the elastic member 33 is disposed on the sliding surface 22 of the ratchet 20, and the control ring 30 is formed on the outer surface. The rough surface 34 is used to easily rotate the control ring 30. The second body 40 is formed with a receiving chamber 41. The inner wall surface of the receiving chamber 41 is formed with a ring tooth portion 42. The second body 40 is sleeved with the receiving chamber 41. At the cylinder 11 of the first body 10, the ring tooth portion 42 can be engaged with the tooth portion 21 of the ratchet tooth 20, and the second body 40 is formed at the opposite end of the accommodating chamber 41. A slot 43 is defined in the slot 43 and a through hole 44 is defined in the slot 43 for connecting the through hole 44 to the through hole 44 (not shown), and the second body 40 is at the bottom of the slot 43. A through hole 45 is formed in the accommodating groove 41, and is screwed to the screw hole 111 by the through hole 45, thereby forming a connection between the first body 10 and the second body 40, so that the second body 40 can be The ring gear portion 42 unidirectionally drives the tooth portion 21 of the ratchet tooth 20 to form a switch and drive of the first body 10.

For the actual use, please view it from the second figure to the fourth figure. The ratchet 20 is inserted into the semicircular groove 12 of the first body 10 in the outward direction with the sliding surface 22, and is rotated by the shaft. The rod 23 is disposed on the shaft hole 121 to form a pivoting portion of the ratchet tooth 20, and the first body 10 is sequentially inserted with the spring 14 and the ball 15 at the through hole 13 , and then the control ring 30 is sleeved on the first body. The cylinder 11 of the 10 allows the ball 15 to abut against the switching groove 32 of the control ring 30, and the elastic member 33 is fixed to the fixing groove 31 of the control ring 30, so that one end of the elastic member 33 can be placed on the ratchet 20 The sliding surface 22, in turn, controls the deflection direction of the ratchet 20, and the second body 40 is sleeved on the cylinder 11 of the first body 10 with the receiving chamber 41, and the control ring 30 is limited to the first and second bodies. Between 10 (40), the ring portion 42 of the second body 40 can engage one of the teeth 21 of the ratchet 20, and finally pass the bolt 46 through the through hole 45 of the second body 40, and snail The screw holes 111 of the first body 10 can quickly complete the combination, so that the first and second bodies 10 (40) and the control ring 30 can rotate relative to each other, thereby facilitating assembly and further Explain the action, and then, as shown in Figures 4 and 5, the user can hold the rough surface 34 to dial the control ring 30, and slide the elastic member 33 to the side along the sliding surface 22 of the ratchet 20. At this time, the elastic member 33 is pushed against one side of the ratchet 20, so that the ratchet 20 is yawed with the shaft 23 as the axis, and the tooth portion 21 on the side of the ratchet 20 is engaged with the second body 40. The ring gear portion 42 pushes the ball 15 by the spring 14, and the ball 15 abuts against the switching groove 32 of the control ring 30, thereby forming the ratchet 20, the opposite limit of the control ring 30 and the first body 10, and the second When the body 40 rotates against the toothing direction, the ring gear portion 42 pushes the outside of the tooth portion 21 of the ratchet tooth 20 to increase the yaw amplitude of the ratchet tooth 20 to press against the semicircular groove 12 of the first body 10. Further, the first body 10 and the second body 40 are synchronously coupled, and when rotated in the tooth-to-tooth direction, the ring portion 42 of the second body 40 pushes the inner side of the tooth portion 21 of the ratchet 20, The yaw amplitude of the ratchet is reduced to be separated from the ring gear portion 42, so that the second body 40 cannot interlock with the first body 10, thereby forming a unidirectional pulling effect, and similarly, As shown in Fig. 7 and Fig. 7, when it is desired to change its one-way pulling direction, the control ring 30 is reversely rotated to displace the elastic member 33 against the other of the ratchet teeth 20. On the side, the toothing angle of the ratchet 20 and the ring gear portion 42 can be changed to provide a one-way pulling effect in the other direction.

In another embodiment of the present invention, as shown in FIG. 8, the first body 10 is formed with a slot 17 at the other end of the cylinder 11, and a through hole 18 is defined in the two sides of the slot 17. A handle (not shown) that can be used by the slot 17 and the through hole 18 is connected, and the second body 40 is formed with a polygonal rod 47 at the opposite end of the housing chamber 41, and the sleeve is formed by the polygonal rod 47 ( The connection between the first body 10 and the second body 40 can be more interchangeable, and the operation effect is not affected, and the technical scope of the protection is also on the other hand. The first body 10 defines a first ring groove 112 at the top end of the cylinder 11 and a C-shaped fastener 19 at the first ring groove 112. The second body 40 defines a bottom edge of the accommodating chamber 41. The second ring groove 48 is sleeved on the first body 10 by the second body 40 so that the C-shaped fastener 19 is interposed between the first and second ring grooves 112 (48), thereby forming the first and second bodies 10 ( 40) The quick link also has the practical effect of easy assembly.

According to the structure of the above specific embodiment, the following benefits can be obtained: (1) the first body 10 is provided with a semicircular slot 12, and the shaft 23 is pivoted to the semicircular slot 12 by the shaft 23, and the first A body 10 is provided with a control ring 30 and a second body 40. The control ring 30 controls the yaw direction of the ratchet 20, so that the tooth portion 21 on one side of the ratchet 20 meshes with the ring portion 42 of the second body 40. When the second body 40 rotates against the toothing direction, the ring gear portion 42 pushes the outer side of the tooth portion 21 of the ratchet tooth 20 to increase the yaw amplitude of the ratchet tooth 20, and further the back surface of the ratchet tooth 20 Pressing the semicircular slit 12 of the first body 10, and by the pivoting of the shaft 23 and the stop of the semicircular slit 12, the second body 40 can directly push the cylinder 11 to form the first body 10 and the second body. 40 synchronous linkage, in order to increase its maximum withstand torque, there will be no teeth or slipping teeth, so as to improve its stability of use, (2) the ratchet 20 is pivoted to the first body with the shaft 23 10, and the control ring 30 and the second body 40 are directly sleeved to the cylinder 11 of the first body 10, so that the assembly can be completed quickly and can be easily carried out. Bolt 46 is screwed into the fastener 19 or C-way snap-fitting of the connecting purpose, i.e. to improve its ease of assembly, serve to reduce the manufacturing cost.

In summary, this creation has indeed achieved a breakthrough structural design, and has improved new content, while at the same time achieving industrial use and progress, and this creation is not seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, Patent applications, please ask the Board of Review to grant legal patent rights, and to pray.

Only the above-mentioned ones are only preferred embodiments of the present invention, and the scope of the creation of the present invention cannot be limited thereto; that is, the equal changes and modifications made by the majority of the patent application scope of the present invention should still belong to the present invention. Within the scope of the patent.

10‧‧‧First Ontology

11‧‧‧Cylinder

111‧‧‧ screw holes

12‧‧‧ semi-circular slot

121‧‧‧Axis hole

13‧‧‧Perforation

14‧‧‧ Spring

15‧‧‧ balls

16‧‧‧Polygon rod

20‧‧‧ ratchet

21‧‧‧ teeth

22‧‧‧Slip surface

23‧‧‧ shaft

30‧‧‧Control loop

31‧‧‧ fixing slot

32‧‧‧Switching slot

33‧‧‧Flexible parts

34‧‧‧Rough surface

40‧‧‧Second ontology

41‧‧‧ housing room

42‧‧‧ Ring tooth

43‧‧‧ slotting

44‧‧‧through hole

45‧‧‧through holes

46‧‧‧Bolts

Claims (6)

A structural improvement of a ratchet joint includes: a first body having a cylinder formed at one end thereof; and a semicircular slit is formed on a circumferential surface of the cylinder, and the cylinder is at a semicircular slit at the same axial direction a shaft hole is defined, and a hole is formed in a side of the opposite semicircular slot, and a spring and a ball are sequentially disposed at the through hole; a ratchet having a fan shape formed on both sides of the arc surface a tooth portion, and a sliding surface is formed between the two tooth portions, and the ratchet is provided with a shaft rod, and the shaft rod is disposed to the shaft hole to allow the ratchet teeth to be pivoted in the semicircular groove; The inner ring of the control ring is symmetrically defined with a fixing slot and a switching slot, and the control ring is sleeved on the cylinder of the first body, and the switching groove is in contact with the ball, and the fixing slot is provided with an elastic member. And a second body is formed on the inner wall of the accommodating chamber, and the second body is formed on the inner wall surface of the accommodating chamber, and the second body is formed on the inner wall surface of the accommodating chamber. The receiving chamber is sleeved on the cylinder of the first body Portion so that the ring gear can ratchet tooth of the toothing. The structural improvement of the ratchet joint according to claim 1, wherein the first body forms a polygonal rod at the other end of the cylinder, and the polygonal rod forms a connection to the sleeve, and the second body is The opposite ends of the chamber are formed with a slot, and a through hole is formed on both sides of the slot, that is, a handle that can be connected by the slot and the through hole. According to the structural improvement of the ratchet joint of the second aspect of the patent application, the first body has a screw hole in the top surface of the cylinder, and the second body is provided with a continuous perforation at the bottom of the slot facing the receiving groove. In addition, a bolt is screwed to the screw hole through the through hole, thereby forming a connection between the first body and the second body. According to the structural improvement of the ratchet joint of the first aspect of the patent application, the first body is formed with a slot at the other end of the cylinder, and a through hole is formed on both sides of the slot, that is, the slot can be opened and The handle of the hole is connected to the handle, and the second body is formed with a polygonal rod at the opposite end of the accommodating chamber, and the polygonal rod forms a connection to the sleeve. The structural improvement of the ratchet joint according to claim 4, wherein the first body has a first ring groove at a top end of the cylinder, and a C-shaped fastener is disposed at the first ring groove. The second body has a second ring groove formed on the bottom edge of the accommodating chamber, and the second body is sleeved on the first body to allow the C-shaped fastener to be caught between the first and second ring grooves. The structural improvement of the ratchet joint according to claim 1, wherein the control ring is formed with a rough surface on the outer surface.