CN105538244B

CN105538244B - Hand-press type rotating handle

Info

Publication number: CN105538244B
Application number: CN201610059538.9A
Authority: CN
Inventors: 杨学太; 骆燕明
Original assignee: Det Industrial Design Co
Current assignee: Det Industrial Design Co
Priority date: 2016-01-28
Filing date: 2016-01-28
Publication date: 2023-06-30
Anticipated expiration: 2036-01-28
Also published as: CN105538244A

Abstract

The utility model provides a hand-press type rotary handle which comprises a shell, a pressing rod, a rotating rod, a fixing rod, a first nut and a transmission assembly, wherein a mounting hole coaxial with the fixing rod is formed in the fixing rod, a first external thread section is formed in one end of the fixing rod, a plurality of pressing petals are arranged at the other end of the fixing rod, the pressing petals are wound in a horn shape by taking the axis of the mounting hole as the center, a conical inclined plane is arranged at one end of an inner hole of the rotating rod, the first nut is screwed on the first external thread section, and the end face of one end of the first nut is attached to the end face of the rotating rod. By pressing the pressing rod, the pressing force drives the rotating rod to rotate through the transmission assembly to realize a rotating function, and compared with the technical scheme that manual torsion is adopted in transmission, the device is not easy to slip and is relatively labor-saving; simultaneously, after the rotary rod piece is inserted on the mounting hole, the first nut is screwed down to enable the pressing valve to tightly hold the rotary rod piece under the action of the conical inclined surface, and the connection between the pressing valve and the rotary rod piece is firm.

Description

Hand-press type rotating handle

Technical Field

The utility model relates to a rotating device, in particular to a hand-press type rotating handle.

Background

Many living tools such as screwdrivers, stirrers, dredgers and the like need to be rotated to achieve the functions, and the tools are rotated by manual twisting, so that the tools are laborious and easy to slip between the hands and the handles.

The Chinese patent 201520100615.1 discloses a labor-saving handle of a manual rotary tool, which comprises a handle part, a finger part and a hand guard part which are sequentially arranged, wherein the hand guard part is connected with a rotary rod, the handle part is cylindrical, a convex area is arranged on the outer side of the circumference of the cross section of the handle part at intervals of 120 degrees, and the convex area extends continuously along the axial direction and is equal to the handle part in length. Although the handle can have a certain anti-slip and labor-saving effect, the problem that the handle is actually required to be rotated by manual torsion, and the slipping and labor-saving effect still exists.

At present, an electric rotating handle using a micro motor as a rotating power source appears in the market, so that the problems of skidding and labor saving are effectively solved, but the installation mode of the electric rotating handle and a rotating rod piece is usually conventional threaded connection, the electric rotating handle is easy to loosen in the rotating process, and the use experience is poor; in addition, such an electric rotating handle is used in a water environment, and needs to be subjected to waterproof treatment, thereby increasing the cost.

In view of this, the applicant has conducted intensive studies on the structure of the rotary handle, and has produced the present utility model.

Disclosure of Invention

The utility model aims to provide a hand-press type rotary handle which is not easy to slip, relatively labor-saving, relatively firm in connection with a rotary rod piece and capable of being used in water environment.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a hand pressure twist grip, is in including casing, one end swivelling joint be in depression bar on the casing, setting are in the bull stick, alternate just with coaxial dead lever of bull stick, be used for connecting the bull stick with the flat key of dead lever, be used for with the dead lever locking is in first nut on the bull stick and connect the depression bar with transmission subassembly between the bull stick, set up on the dead lever with the coaxial mounting hole of dead lever, just the one end of dead lever be provided with first nut complex first external screw thread section, the other end is provided with a plurality of pressure flaps, a plurality of pressure flaps with the axis of mounting hole is loudspeaker form around setting up as the center, and has the clearance between the adjacent two pressure flaps, the hole one end of bull stick be provided with pressure flap complex conical ramp, the shaft of dead lever with set up respectively on the pore wall of the hole of bull stick with flat key complex keyway, first nut is screwed on the first external screw thread section, just a plurality of pressure flaps the axis is in the conical ramp of the terminal surface of first terminal surface of the bull stick is kept away from.

As an improvement of the utility model, the cross section of the mounting hole is regular hexagon, and the cross section of the inner cavity surrounded by each pressure flap is also regular hexagon.

As an improvement of the utility model, the utility model further comprises a spring pin, the fixing rod is provided with a pin hole matched with the spring pin at the position of the first external thread section, and the end face of one end of the first nut far away from the rotating rod is propped against the spring pin.

As an improvement of the utility model, one end of the pressure bar, which is not connected with the shell, is provided with a rack, the transmission assembly comprises a worm wheel arranged on the rotating rod, a worm matched with the worm wheel, a gear arranged on the worm and a spring piece with two ends respectively propped against the pressure bar and the shell, the gear and the rack are meshed with each other, and the worm is rotationally connected with the shell.

As an improvement of the utility model, a first bearing and a second bearing are connected between the rotating rod and the shell, the worm wheel is positioned between the first bearing and the second bearing, the first bearing is positioned on one side of the worm wheel facing the first nut, and the second bearing is positioned on one side of the worm wheel away from the first nut.

As an improvement of the utility model, the utility model further comprises a second nut, a second external thread section matched with the second nut is arranged at the position of the rotating rod corresponding to the conical inclined surface, the second nut is screwed on the second external thread section, and the end face of one end of the second nut is propped against the second bearing.

As an improvement of the utility model, the shell comprises a left half shell, a right half shell, an upper sealing cover and a lower sealing cover.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. according to the utility model, the pressing rod is pressed, so that the pressing force drives the rotating rod to rotate through the transmission assembly to realize a rotating function, and compared with the technical scheme that manual torsion is adopted in transmission, the manual torsion type rotary table is not easy to slip and is relatively labor-saving; meanwhile, after the rotary rod piece is inserted into the mounting hole, the first nut is screwed down, so that the pressing valve tightly holds the rotary rod piece under the action of the conical inclined surface, and the connection between the pressing valve and the rotary rod piece is firm; in addition, because the handle of the utility model does not use electronic components, the handle can be used in water environment, does not need waterproof treatment, and has relatively low cost.

2. Through setting the cross section of mounting hole to regular hexagon, compare with the technical scheme that the tradition used the round hole, it is difficult to skid, and be applicable to the member cooperation with various different cross sections.

3. The transmission component transmits the pressing force of the pressing rod to the rotating rod through the matching of the gear rack and the turbine worm in sequence, and the transmission is relatively stable.

Drawings

FIG. 1 is a schematic view of a hand-press rotary handle according to the present utility model, showing a rotary rod;

FIG. 2 is a schematic view of a hand-press rotary handle of the present utility model with a portion of the housing omitted, showing a rotary lever;

FIG. 3 is a schematic view showing an exploded structure of the hand-press type rotary handle of the present utility model;

FIG. 4 is a schematic view of a cross-sectional structure of a rotating rod of a hand-press rotary handle according to the present utility model;

FIG. 5 is a schematic view of the structure of the fixing rod of the hand-press rotary handle of the present utility model;

FIG. 6 is a schematic view of another view of a fixed rod of the hand-press rotary handle of the present utility model;

FIG. 7 is a schematic view showing the use state of the hand-press type rotating handle and umbrella according to the present utility model;

FIG. 8 is a schematic view showing the use state of the hand-press type rotary handle and the stirrer according to the present utility model.

The labels in each figure correspond to the following:

10-a housing; 11-left half shell;

12-right half shell; 13-capping;

14-a lower cover; 15-perforating;

20-pressing rods; 21-a rack;

30-rotating rods; 31-inner holes;

32-a conical ramp; 33-keyway;

34-a second external thread segment; 40-fixing rod;

41-mounting holes; 42-pressing the valve;

43-keyway; 44-a first external thread segment;

45-pin holes; 50-flat keys;

60-a first nut; 70-a transmission assembly;

71-worm wheel; 72-worm;

73-gear; 74-spring piece;

80-spring pins; 90-a second nut;

91-a first bearing; 92-second bearing.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific examples.

As shown in fig. 1-6, the hand-press rotary handle provided in this embodiment includes a housing 10, a pressing rod 20 with one end rotatably connected to the housing 10, a rotating rod 30 disposed in the housing 10, a fixing rod 40 inserted in the rotating rod 30 and coaxial with the rotating rod 30, a flat key 50 for connecting the rotating rod 30 and the fixing rod 40, a first nut 60 for locking the fixing rod 40 to the rotating rod 30, and a transmission assembly 70 connected between the pressing rod 20 and the rotating rod 30, where, of course, the rotating rod 30 is provided with an inner hole 31 for inserting the fixing rod 40.

The shell 10 comprises a left half shell 11, a right half shell 12, an upper sealing cover 13 and a lower sealing cover 14, the left half shell 11, the right half shell 12, the upper sealing cover 13 and the lower sealing cover 14 jointly enclose an inner cavity for placing parts such as a rotating rod 30, a fixed rod 40 and a transmission assembly 70, and a perforation 15 coaxial with the fixed rod 40 is formed in the upper sealing cover 13 and used for inserting a rotating rod piece which needs to be connected with a handle. The manner in which the left housing half 11, the right housing half 12, the upper cover 13 and the lower cover 14 are mounted to each other may be conventional and will not be described in detail herein.

The end of the compression bar 20 which is not connected with the shell 10 is provided with a rack 21, the rack 21 is mutually perpendicular to the bar body of the compression bar 20, and of course, the rack 21 is positioned on one side of the compression bar 20 facing the inner cavity of the shell 10, so as to be convenient for being matched with the transmission assembly 70.

The inner hole 31 of the rotating rod 30 is provided with a tapered inclined surface 32 toward one end of the upper cover 13, and the tapered inclined surface 32 is in a horn shape and gradually contracts from the opening position of the inner hole 31 toward the inside of the inner hole 31. The end of the rotating rod 30 remote from the end of the conical ramp 32 is planar. In addition, a key groove 33 matched with the flat key 50 is formed in the side wall of the inner hole 31 of the rotating rod 30, and the length direction of the key groove 33 is consistent with the length direction of the inner hole 31.

The fixing rod 40 is provided with a mounting hole 41 coaxial with the fixing rod 40, the mounting hole 41 is coaxial with the through hole 15, and the cross section of the mounting hole 41 is preferably regular hexagon, so that the fixing rod is convenient to be matched with various rotating rods. The fixed rod 40 is provided at one end with a first externally threaded section 44 which cooperates with the first nut 60 and at the other end with a plurality of pressure lobes 42 which cooperate with the tapered ramp 32, i.e. the pressure lobes 42 cooperate with the tapered ramp 32. The plurality of pressure flaps 42 are wound in a horn shape with the axis of the mounting hole 41 as the center, gaps are arranged between two adjacent pressure flaps 42, and the size of the gaps can be determined according to actual needs. When the fixing rod 40 is inserted into the inner hole 31 of the rotating rod 30, each pressing lobe 42 abuts against the tapered inclined surface 32, that is, the end of the fixing rod 40 with the tapered inclined surface 32 faces towards the same direction as the end of the rotating rod 30 with the tapered inclined surface 32. The shaft of the fixing lever 40 is also provided with a key groove 43 for engaging with the flat key 50. In addition, the cross section of the cavity enclosed by each pressure flap 42 is also preferably regular hexagonal.

The flat key 50 is a conventional flat key and is inserted into the

key grooves

33 and 43 at the same time for transmitting the power of the rotating lever 30 to the fixed lever 40.

The first nut 60 is also a conventional nut, preferably a hex nut. The first nut 60 is screwed onto the first externally threaded section 44, and the end face of one end of the first nut 60 is fitted onto the end face of the end of the rotating rod 30 remote from the tapered inclined surface 32. In this way, after the rotary rod piece to be connected with the handle is inserted into the mounting hole 41 through the through hole 15, the first nut 60 is screwed down towards the safety of the rotary rod 30, the fixing rod 40 moves towards the side far away from the upper sealing cover 13 under the action of the screw force, meanwhile, the pressure flaps 42 are mutually close under the extrusion of the conical inclined surface 32, and the rotary rod piece to be connected with the handle is tightly held, so that the rotary rod piece can rotate together with the fixing rod 40, and the connection is firm.

Preferably, the hand-press rotary handle of the present embodiment further includes a spring pin 80, the fixing rod 40 is provided with a pin hole 45 matched with the spring pin 80 at the position of the first external thread section 44, the spring pin 80 is inserted into the pin hole 45, and the end surface of the end of the first nut 50 far away from the rotating rod 30 abuts against the spring pin 80, so that the spring pin 80 can support the first nut 50 to prevent the first nut 50 from loosening in the rotating process. Further, a pin hole may be formed in a position of the rotary rod member to be connected to the handle corresponding to the spring pin 80, and the spring pin 80 may be inserted into the pin hole at the same time, so that the spring pin 80 may function to transmit the power of the fixing rod 40 to the rotary rod member.

The transmission assembly 70 includes a worm wheel 71 provided on the rotating lever 40, a worm 72 fitted with the worm wheel 71, a gear 73 provided on the worm 72, and a spring piece 74 having both ends respectively abutted against the pressing lever 20 and the housing 10. The worm wheel 71 and the rotating rod 40 can be integrally arranged or can be split, and when the worm wheel 71 and the rotating rod 40 are split, the worm wheel 71 and the rotating rod 40 are in transmission connection with each other through a conventional key slot structure; likewise, the gear 73 and the worm 72 may be integrally or separately arranged, and when the gear 73 and the worm 72 are separately arranged, they are also in transmission connection with each other through a conventional key slot structure. In the present embodiment, the worm wheel 71 and the rotating lever 40 are integrally connected, and the gear 73 and the worm 72 are also integrally connected.

The gear 73 and the rack 21 are engaged with each other, and both ends of the worm 72 are rotatably connected to the housing 10. In this way, after the end, which is far away from the press bar 20 and is rotationally connected with the shell 10, is pressed towards the inner cavity direction of the shell 10, the spring piece 74 is compressed, meanwhile, the rack 21 on the press bar 20 drives the worm 72 to rotate through the gear 73, the worm 72 drives the worm wheel 71 to rotate, the worm wheel 71 drives the rotating rod 30 to rotate, the rotating rod 30 drives the fixing rod 40 to rotate through the flat key 50, and the fixing rod 40 drives the rotating rod piece inserted in the mounting hole 44 to rotate through the press flap 42 and the spring pin 80, so that the rotating rod piece is rotated; when the pressing force of the pressing lever 20 is released, the pressing lever 20 is restored under the elastic force of the spring piece 74.

Preferably, in the present embodiment, the second nut 90 is further included, and the first bearing 91 and the second bearing 92 are connected between the rotating rod 30 and the housing 10, and the worm wheel 71 is located between the first bearing 91 and the second bearing 92, wherein the first bearing 91 is located at a side of the worm wheel 71 facing the first nut 60, and the second bearing 92 is located at a side of the worm wheel 71 facing away from the first nut 60.

In addition, a second external thread section 34 matched with the second nut 90 is provided at a position of the rotating rod 30 corresponding to the tapered inclined surface 32, the second nut 90 is screwed on the second external thread section 34, and an end face of one end of the second nut 90 abuts against an end face of one end of the second bearing 92 for limiting the relative position of the second bearing 92.

The hand-press rotary handle provided in this embodiment can be combined with various tools to be selected. As shown in fig. 7, which is a schematic view of the use state of the hand-press rotary handle of the present embodiment in cooperation with an umbrella, after the umbrella handle of the umbrella is mounted on the mounting hole 41, the umbrella can be driven to rotate by pressing the pressing rod 20, so as to spin-dry water drops on the umbrella, and facilitate folding the umbrella; as shown in fig. 8, a schematic diagram of a use state of the hand-press rotary handle and the stirrer according to the present embodiment is shown, and after the rotary rod of the stirrer is installed on the installation hole 41, the stirrer can be driven to rotate by pressing the press rod 20, so as to realize the stirring function.

The present utility model has been described in detail with reference to the drawings, but the embodiments of the present utility model are not limited to the above embodiments, and those skilled in the art can make various modifications to the present utility model, such as changing the spring plate 74 to elastic rubber in the above examples, etc., which are all within the scope of the present utility model.

Claims

1. The utility model provides a hand pressing formula twist grip, its characterized in that includes casing, one end swivelling joint be in depression bar on the casing, setting are in the bull stick, alternate just with coaxial dead lever of bull stick, be used for connecting the bull stick with the flat key of dead lever, be used for with the dead lever locking is in first nut on the bull stick and connect the transmission subassembly between the depression bar with the bull stick, set up on the dead lever with the coaxial mounting hole of dead lever, just the one end of dead lever be provided with first nut complex first external screw thread section, the other end is provided with a plurality of pressure lamella, a plurality of pressure lamella use the axis of mounting hole is loudspeaker form around establishing as the center, and adjacent two have the clearance between the pressure lamella, the hole one end of bull stick be provided with pressure lamella complex conical inclined plane, the bull stick keep away from the terminal surface of the one end of conical inclined plane is the plane, the pole body of dead lever with be seted up on the pore wall of the hole of bull stick respectively with key complex mounting hole section, the other end is in the first end face of rotating the conical nut is in the terminal surface of the one end is kept away from.

2. The hand-press rotary handle according to claim 1, wherein the cross section of the mounting hole is regular hexagon, and the cross section of the inner cavity enclosed by each press flap is also regular hexagon.

3. The hand twist grip of claim 1, further comprising a spring pin, wherein the securing lever defines a pin bore at the location of the first externally threaded section for mating with the spring pin, and wherein an end surface of the first nut distal from the end of the rotating lever abuts the spring pin.

4. A hand operated twist grip as set forth in any one of claims 1 to 3 wherein said plunger is provided with a rack at an end thereof not connected to said housing, said transmission assembly including a worm wheel provided on said plunger, a worm engaged with said worm wheel, a gear provided on said worm, and a spring piece having opposite ends respectively abutting against said plunger and said housing, said gear and said rack being engaged with each other, said worm being rotatably connected to said housing.

5. The hand twist grip of claim 4 wherein a first bearing and a second bearing are connected between the rotatable lever and the housing, the worm gear is located between the first bearing and the second bearing, the first bearing is located on a side of the worm gear facing the first nut, and the second bearing is located on a side of the worm gear facing away from the first nut.

6. The hand-press rotating handle according to claim 5, further comprising a second nut, wherein a second external thread section matched with the second nut is provided at a position of the rotating rod corresponding to the tapered inclined surface, the second nut is screwed on the second external thread section, and an end face of one end of the second nut is abutted against the second bearing.

7. The hand twist grip of claim 5 or 6, wherein the housing comprises a left half housing, a right half housing, an upper cover and a lower cover.