CN214243635U

CN214243635U - Manual worm gear and worm moving type control mechanism

Info

Publication number: CN214243635U
Application number: CN202023279246.7U
Authority: CN
Inventors: 陆建明; 李纪聪; 何葆键; 侯宇帆; 孙学雁
Original assignee: Guangzhou Huali Vocational College of Technology
Current assignee: Guangzhou Huali Vocational College of Technology
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-21
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a manual worm gear formula control mechanism that moves, include: a fixed mount; the gear driving mechanism is arranged on the fixed frame and comprises a rotating shaft, a worm gear, a first driving gear, a second driving gear and a clutch; a worm wheel operating mechanism which comprises a worm and a first operating rod, wherein the worm is arranged on the first operating rod and is meshed with the worm, and the first operating rod is arranged between the first connecting rod and the second connecting rod in a swinging mode to drive the worm to rotate; the clutch control mechanism comprises a connecting rod, a toggle piece and a second control rod; the connecting rod is connected with the first side wall and the second side wall and is arranged at intervals with the rotating shaft; the shifting piece is slidably arranged on the connecting rod and is matched with the clutch; the second operating lever is used for operating the shifting piece to move back and forth on the connecting rod. The control mechanism can be applied to a transverse moving device to assist the automobile to transversely move to a parking space, improves the convenience of automobile parking or position moving, and solves the problems of difficult automobile parking and tire abrasion.

Description

Manual worm gear and worm moving type control mechanism

Technical Field

The utility model relates to a carry thing mobile device technical field, especially relate to a manual worm gear formula control mechanism that moves.

Background

The carrying mobile equipment can be used for commuting and transporting, and brings great convenience to life of people. However, the existing carrier moving apparatus such as an automobile has the following problems: when parking in the side, the driver needs to drive the car to the side front of the parking space and then back up, and the parking has certain difficulty and consumes more time, and especially the operation is very inconvenient under the condition that the parking space is small. In addition, the tires are also subject to some wear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming and not enough, provide a manual worm gear formula control mechanism that moves.

The purpose of the utility model is realized through the following technical scheme:

a manual worm gear moving type control mechanism comprises:

the fixing frame is provided with a first side wall, a second side wall, a first connecting rod and a second connecting rod, wherein the first side wall and the second side wall are arranged in a front-back opposite mode;

the gear driving mechanism comprises a rotating shaft, a worm gear, a first driving gear, a second driving gear and a clutch; the rotating shaft is arranged between the first side wall and the second side wall; the worm wheel is rotatably arranged on the rotating shaft; the first driving gear and the second driving gear are respectively arranged on the front side and the rear side of the worm wheel and rotatably sleeved on the rotating shaft; the clutch can be movably arranged on the worm gear back and forth and is used for controlling the worm gear to switch among three states of synchronous rotation with the first driving gear, staggering with the first driving gear and the second driving gear and synchronous rotation with the second driving gear;

a worm wheel operating mechanism comprising a worm and a first operating lever, wherein the worm is arranged at one end of the first operating lever and is meshed with the worm wheel, and the first operating lever is arranged between the first connecting rod and the second connecting rod in a swinging mode to drive the worm to rotate;

the clutch control mechanism comprises a connecting rod, a toggle piece and a second control rod; the connecting rod is connected with the first side wall and the second side wall and is arranged at intervals with the rotating shaft; the shifting piece is slidably mounted on the connecting rod and is matched with the clutch; the second operating rod is used for operating the poking piece to move back and forth on the connecting rod and is provided with a pivoting part, a connecting part and an operating part, the pivoting part is pivoted on the first connecting rod, the connecting part is positioned below the pivoting part and connected with the poking piece, and the operating part is arranged above the pivoting part.

As a further preferable aspect, the clutch includes a first disc, a second disc, and a disc link; the first disk body is arranged between the worm wheel and the first driving gear, is provided with a first gear ring matched with the first driving gear, and is provided with a second gear ring matched with the first gear ring; the second disc body is arranged between the worm wheel and the second driving gear, and is provided with a third gear ring matched with the second driving gear, and the second driving gear is provided with a fourth gear ring matched with the third gear ring; the disk body connecting rod can penetrate through the worm wheel in a front-back sliding mode, and two ends of the disk body connecting rod are connected with the first disk body and the second disk body respectively.

As a further preferable scheme, the toggle piece comprises a main body part, and a first extension arm and a second extension arm which are respectively arranged at the front side and the rear side of the main body part; the main body part is provided with a first limiting groove matched with the first tray body and a second limiting groove matched with the second tray body; the first extension arm is sleeved with the rotating shaft and is positioned on the front side of the first driving gear, a fifth gear ring is arranged on the rear side of the first extension arm, and the first driving gear is provided with a sixth gear ring matched with the fifth gear ring; the first extension arm is sleeved with the rotating shaft and located on the rear side of the second driving gear, a seventh gear ring is arranged on the front side of the first extension arm, and an eighth gear ring matched with the seventh gear ring is arranged on the second driving gear.

As a further preferred scheme, the first operating rod comprises a sleeve, a mounting seat and a mounting shaft; the two mounting seats are arranged at the lower end of the sleeve at intervals, and the worm is arranged between the two mounting seats; the mounting shaft penetrates through the first mounting seat, the worm and the second mounting seat, and two ends of the mounting shaft are respectively connected with the first connecting rod and the second connecting rod.

As a further preferable scheme, one of the mounting seats comprises a seat body, and a ratchet wheel, a pawl, a first coil spring and a second coil spring which are arranged in the seat body; the ratchet wheel is fixed with one end of the worm wheel; the pawl is arranged in the seat body in a swinging mode through a ratchet shaft and is positioned on the ratchet wheel, the pawl is provided with a first side and a second side which are symmetrically arranged, one end, close to the ratchet wheel, of the first side is provided with first ratchet teeth used for pushing the ratchet wheel to rotate in the positive direction, and one end, close to the ratchet wheel, of the second side is provided with second ratchet teeth used for pushing the ratchet wheel to rotate in the negative direction; the first coil spring abuts a first side of the pawl and the second coil spring abuts a second side of the pawl.

As a further preferable scheme, one end of the first side of the pawl, which is far away from the ratchet wheel, is provided with a first protruding part, one end of the second side of the pawl, which is far away from the ratchet wheel, is provided with a second protruding part, and an included angle is formed between the first protruding part and the second protruding part; the first coil spring is abutted against the first protruding part, and the second coil spring is abutted against the second protruding part; the first operating lever further comprises a rotating rod rotatably arranged on the sleeve, the lower end of the rotating rod is fixedly provided with a driving lever, and the driving lever extends into the first mounting seat and abuts against the pawl to push the pawl to rotate.

As a further preferable scheme, the two mounting seats are of a symmetrical structure, the first extending parts of the two pawls are connected, and the second extending parts of the two pawls are connected.

As a further preferred scheme, a handle is arranged at the top end of the rotating rod and sleeved with the sleeve.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the manual worm gear and worm moving type control mechanism provided by the utility model can be applied to a transverse moving device to assist the carrying mobile equipment to transversely move to a parking space, so that the parking or moving convenience is improved, and the problems of difficult parking of the carrying mobile equipment and tire abrasion are solved;

2. the control mechanism has compact structure and small occupied space;

3. the first extension arm is sleeved with the rotating shaft and is positioned at the rear side of the second driving gear, the front side of the first extension arm is provided with a seventh gear ring, the second driving gear is provided with an eighth gear ring matched with the seventh gear ring, and the arrangement is such that when the first worm gear is synchronous with the first driving gear, the fifth gear ring and the sixth gear ring are staggered, and meanwhile, the seventh gear ring and the eighth gear ring are meshed, so that the second driving gear is prevented from sliding, namely, the automobile transverse moving device is controlled not to fall down when moving horizontally; when the second worm wheel is synchronous with the second driving gear, the seventh gear ring and the eighth gear ring are staggered, namely, the fifth gear ring and the sixth gear ring are meshed simultaneously, so that the first driving gear is prevented from sliding, namely, the automobile transverse moving device is controlled not to horizontally move when being lifted and moved, and the stability and the safety of the mechanism are further ensured;

4. the installation box and the worm wheel are in transmission in a pawl and ratchet mode, the rotation direction of the worm wheel can be limited, and the safety is high.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of a manual worm gear and worm moving control mechanism of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a bottom view of the manual worm gear moving control mechanism of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 3 (with the pawl and ratchet wheel disengaged);

FIG. 7 is a cross-sectional view taken along D-D in FIG. 3 (in a first ratchet tooth abutting ratchet gear state);

FIG. 8 is a sectional view taken along D-D in FIG. 3 (in a second ratchet tooth abutting ratchet gear state);

FIG. 9 is a cross-sectional view taken along E-E in FIG. 3;

FIG. 10 is a schematic view of the worm gear synchronizing with the first drive gear;

FIG. 11 is a schematic view of the worm gear synchronizing with the second drive gear;

FIG. 12 is a schematic view of the structure of the lateral shifting apparatus;

FIG. 13 is a perspective view of the lateral shifting device in a stowed condition;

FIG. 14 is a bottom view of the lateral shifting device;

in the figure:

a fixed frame-1; a first sidewall-11; a second sidewall-12; a first link-13; a second link-14;

a gear driving mechanism-2; a worm wheel-21; a first drive gear-22; a second drive gear-23; a clutch-24; a first disc body-241; a disc link-242; a second tray-243; a rotating shaft-25;

a worm gear control mechanism-3; a sleeve-31; a handle-32; a mounting seat-33; a seat body-331; a pawl-332; a first protrusion-3321; a second protrusion-3322; a first ratchet-3323; a second ratchet-3324; a first coil spring-333; a second coil spring-334; ratchet-335; a deflector rod-34; a rotating rod-35; -36, a worm; mounting a shaft-37;

a clutch operating mechanism-4; a connecting rod-41; a toggle-42; a main body portion-421; a first limit groove-4211; a second limit groove-4212; a first extension arm-422; a second extension arm-423; a second joystick-43; an operation section-431; a pivot portion-432; a connecting portion-433.

Wheel set mechanism-6; a first rotation axis-61; a first swing link-62; a first axle-64; a third sprocket-641; a first road wheel-642; a second rotation axis-65; a first sprocket-651; a second sprocket-652; a second swing link-66; a second hub-67; a second road wheel-671; an axle link-68.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Examples

Referring to fig. 1-11, the present embodiment provides a manual worm gear moving control mechanism, which includes a fixing frame 1, a gear driving mechanism 2, a worm gear operating mechanism 3 and a clutch operating mechanism 4, and can be applied to a lateral moving device of an automobile to assist the automobile to move to a parking space.

As shown in fig. 1-2, the fixing frame 1 has a first side wall 11 and a second side wall 12 spaced from each other in a front-to-back direction, and a first connecting rod 13 and a second connecting rod 14 connecting the first side wall 11 and the second side wall 12, wherein the first connecting rod 13 and the second connecting rod 14 are arranged in parallel and located at the top of the fixing frame 1.

As shown in fig. 1 to 3, the gear drive mechanism 2 includes a rotary shaft 25, a worm wheel 21, a first drive gear 22, a second drive gear 23, and a clutch 24. Wherein, the rotating shaft 25 is installed between the first side wall 11 and the second side wall 12, and the center line thereof is arranged along the front-back direction; the worm wheel 21 is rotatably mounted on the rotating shaft 25 and is used for driving the first driving gear 22 or the second driving gear 23 to rotate; the first driving gear 22 and the second driving gear 23 are respectively arranged on the front side and the rear side of the worm wheel 21 and rotatably sleeved on the rotating shaft 25, in this embodiment, the first driving gear 22 is used for driving the automobile transverse device to move horizontally, and the second driving gear 23 is used for driving the automobile transverse device to lift; the clutch 24 is movably mounted on the worm wheel 21 back and forth to control the worm wheel 21 to switch between three states of rotating synchronously with the first driving gear 22, staggering with the first driving gear 22 and the second driving gear 23 and rotating synchronously with the second driving gear 23, namely when the clutch 24 is paired with the first driving gear 22 and staggering with the second driving gear 23, the worm wheel 21 rotates synchronously with the first driving gear 22, when the clutch 24 is not paired with the first driving gear 22 and the second driving gear 23, the rotation of the worm wheel 21 does not affect the first driving gear 22 and the second driving gear 23, and when the clutch 24 is paired with the second driving gear 23 and staggering with the second driving gear 23, the worm wheel 21 rotates synchronously with the second driving gear 23.

As shown in fig. 1 to 3, the worm wheel operating mechanism 3 includes a worm 36 and a first operating lever, and the worm 36 is mounted on the lower end of the first operating lever and engaged with the worm wheel 21 to form a worm wheel and worm drive. The first operating lever is swingably mounted between the first link 13 and the second link 14 to drive the worm 36 to rotate, thereby controlling the worm wheel 21 to rotate.

As shown in fig. 4 and 5, the clutch operating mechanism 4 includes a connecting rod 41, a toggle member 42, and a second operating lever 43. Wherein, the connecting rod 41 is connected with the first side wall 11 and the second side wall 12 and is arranged in parallel with the rotating shaft 25 at intervals; the toggle piece 42 is slidably mounted on the connecting rod 41 and is paired with the clutch 24; the second operating lever 43 has a pivot portion 432, and a connecting portion 433 and an operating portion 431 located at two ends of the pivot portion 432, the pivot portion 432 is pivoted on the first link 13, the connecting portion 433 is located below the pivot portion 432 and connected to the toggle member 42, and the operating portion 431 is located above the pivot portion 432. The forward and backward movement operation part 431 can move the toggle member 42 forward and backward on the connecting rod 41.

Referring to fig. 2, the clutch 24 includes a first plate 241, a second plate 243, and a plate link 242. The first disc 241 is disposed between the worm wheel 21 and the first driving gear 22, a first gear ring matched with the first driving gear 22 is disposed on one surface of the first disc close to the first driving gear 22, and the first driving gear 22 is provided with a second gear ring matched with the first gear ring; the second disc body 243 is arranged between the worm wheel 21 and the second driving gear 23, a third gear ring matched with the second driving gear 23 is arranged on one surface of the second disc body close to the second driving gear 23, and a fourth gear ring matched with the third gear ring is arranged on the second driving gear 23; the disk connecting rod 242 passes through the worm wheel 21 in a front-back sliding manner, and both ends of the disk connecting rod 242 are respectively connected with the first disk 241 and the second disk 243, and a plurality of disk connecting rods 242 are provided in the present embodiment, and the plurality of disk connecting rods 242 are circumferentially arranged on the worm wheel 21.

Referring to fig. 4-5, the toggle member 42 includes a main body 421, and a first extension arm 422 and a second extension arm 423 located at the front and rear sides of the main body 421. The main body 421 has a receiving groove for the worm wheel 21 to pass through, which is beneficial to saving space; the main body 421 further has a first limit groove 4211 matching the edge of the first plate 241 and a second limit groove 4212 matching the edge of the second plate 243, and when the toggle member 42 moves back and forth, the clutch 24 adjusts the position along with the first limit groove 4211 and the second limit groove 4212; the first extension arm 422 is sleeved with the rotating shaft 25 and is positioned at the front side of the first driving gear, a fifth gear ring is arranged at the rear side of the first driving gear, and the first driving gear 22 is provided with a sixth gear ring matched with the fifth gear ring; the first extension arm 422 is sleeved with the rotating shaft 25 and is positioned at the rear side of the second driving gear, a seventh gear ring is arranged at the front side of the first extension arm, and the second driving gear 23 is provided with an eighth gear ring matched with the seventh gear ring; when the worm wheel 21 is synchronous with the second driving gear 23, the seventh gear ring and the eighth gear ring are staggered, namely, the fifth gear ring and the sixth gear ring are meshed simultaneously, so that the first driving gear 22 is prevented from rotating, namely, the transverse moving device is controlled not to horizontally move when being lifted and moved, and the stability and the safety of the mechanism are further ensured.

Referring to fig. 2-3, the first lever includes a sleeve 31, a mounting seat 33 and a mounting shaft 37; two mounting seats 33 are mounted at the lower end of the sleeve 31 and are arranged at intervals, and the worm 36 is mounted between the two mounting seats 33; the mounting shaft 37 passes through the first mounting seat 33, the worm 36 and the second mounting seat 33, two ends of the mounting shaft are respectively connected with the first connecting rod 13 and the second connecting rod 14, and the center line of the mounting shaft is perpendicular to the center line of the rotating shaft 25.

As shown in fig. 6-9, the worm 36 is driven with the mounting block 33 by a pawl 332 and a ratchet 335. Specifically, the mounting seat 33 includes a seat body 331, and a ratchet 335, a pawl 332, a first coil spring 333 and a second coil spring 334 mounted in the seat body 331. The base body 331 has an inner side wall facing the worm wheel 21, the inner side wall is provided with a notch for placing the ratchet wheel 335, and the ratchet wheel 335 is fixed with one end of the worm wheel 21; the pawl 332 is swingably mounted in the seat body 331 through a ratchet shaft and located at one side of the ratchet 335, the pawl 332 has a first side and a second side which are symmetrically arranged, one end of the first side close to the ratchet 335 is provided with a first ratchet 3323 for pushing the ratchet 335 to rotate in a forward direction, and one end of the second side close to the ratchet 335 is provided with a second ratchet 3324 for pushing the ratchet 335 to rotate in a reverse direction; the first coil spring 333 abuts a first side of the pawl 332 and the second coil spring 334 abuts a second side of the pawl 332. First and second coil springs 333 and 334 are used to reset the pawl 332.

On the ratchet wheel, a first protruding portion 3321 is arranged at one end of the first side of the pawl 332 far away from the ratchet wheel 335, a second protruding portion 3322 is arranged at one end of the second side of the pawl 332 far away from the ratchet wheel 335, and an included angle is formed between the extending directions of the first protruding portion 3321 and the second protruding portion 332; the first coil spring 333 abuts the first protrusion 3321, and the second coil spring 334 abuts the second protrusion 3322.

As shown in fig. 2 and 9, the first operating lever further includes a rotating rod 35 rotatably mounted on the sleeve 31, a driving lever 34 is fixedly mounted at a lower end of the rotating rod 35, the driving lever 34 extends in a direction perpendicular to a center line of the rotating rod 35, and the driving lever 34 passes through an inner side wall of the first mounting seat 33 and abuts against the pawl 332 to push the pawl 332 to rotate. Normally, i.e. without rotating the rotary rod 35, the lever 34 is located between the first projection 3321 and the second projection 3322, and due to the elastic force of the coil spring, the pawl 332 is offset from the ratchet 335, and the first lever swings without affecting the rotation of the worm 36; rotating the rotating lever 35 counterclockwise, the lever 34 presses against the first protrusion 3321 so that the first ratchet 3323 abuts against the tooth groove of the ratchet 335, swinging the operating lever so that the ratchet 335 rotates in the forward direction, rotating the rotating lever 35 clockwise, the lever 34 presses against the second protrusion 3322 so that the second ratchet 3324 abuts against the tooth groove of the ratchet 335, and swinging the operating lever so that the ratchet 335 rotates in the reverse direction. In this embodiment, the two mounting seats 33 are arranged in a symmetrical structure, the first extending portions of the two pawls 332 are connected, and the second extending portions of the two pawls 332 are connected, so that structural balance and stability are facilitated, in other examples, the pawls 332 and the ratchet 335 which are matched with each other may be arranged in only one mounting seat 33.

In addition, as shown in fig. 1-2, the first operating lever further includes a handle 32 mounted at the top end of the rotating rod 35 and sleeved on the sleeve 31, and the top end of the handle 32 may be configured in a T-shape or a wheel-shaped shape to facilitate the user to grasp and identify the operating position.

The operation principle of the manual worm gear and worm gear moving type control mechanism is as follows:

1. and (3) locking state:

referring to fig. 2 and 6, clutch 24 is offset from first drive gear 22 and second drive gear 23, and pawl 332 and ratchet gear 335 are offset.

2. Braking state of the first driving gear:

referring to fig. 10, the manipulation part 431 of the second manipulation lever 43 is toggled backward, the clutch 24 moves forward, the worm wheel 21 is synchronized with the first driving gear 22, and the second driving gear 23 is locked; rotating the handle 32 counterclockwise, the lever 34 presses against the first protrusion 3321 of the pawl 332, so that the first ratchet 3323 engages with the ratchet 335 (see fig. 7), and the first operating lever is pulled back and forth, so that the first driving gear 22 rotates forward; rotating the handle 32 clockwise, the lever 34 presses against the second protrusion 3322 of the pawl 332 such that the second ratchet teeth 3324 engage the ratchet gear 335 (see fig. 8), and the first drive gear 22 rotates in reverse by moving the first operating lever back and forth.

3. Braking state of the second driving gear:

referring to fig. 11, the manipulation part 431 of the second manipulation lever 43 is pushed forward, the clutch 24 moves backward, the worm wheel 21 is synchronized with the second driving gear 23, and the first driving gear 22 is locked; rotating the handle 32 counterclockwise, the lever 34 presses against the first protrusion 3321 of the pawl 332, so that the first ratchet 3323 engages with the ratchet 335 (see fig. 7), and the first operating lever is pulled back and forth, so that the second driving gear 23 rotates forward; rotating the handle 32 clockwise, the lever 34 presses against the second protrusion 3322 of the pawl 332 such that the second ratchet teeth 3324 engage the ratchet gear 335 (see fig. 8), and the first operating lever is toggled and the second drive gear 23 is reversed.

Referring to fig. 12-14, the control mechanism is applied to the lateral shifting device in the following manner:

the transverse moving device is further provided with a wheel set mechanism 6 on the control mechanism, wherein the wheel set mechanism 6 comprises a first rotating shaft 61, a first swing rod 62, a first wheel axle 64, a second rotating shaft 65, a second swing rod 66, a second wheel axle 67 and a wheel axle connecting rod 68; the first rotating shaft 61 is rotatably mounted on one side of the fixing frame, a first chain wheel 611 and a second chain wheel 612 are fixedly arranged on the first rotating shaft 61, and the first chain wheel 611 is in transmission connection with the first driving gear 22 through a first chain; two ends of the first swing link 62 are respectively connected with the first rotating shaft 61 and the first wheel axle 64; the front end and the rear end of the first wheel shaft 64 are both provided with a first traveling wheel 642, the first wheel shaft 64 is fixedly provided with a third chain wheel 641, and the third chain wheel 641 is in transmission connection with the second chain wheel 612 through a second chain; the second rotating shaft 65 is rotatably mounted on the other side of the fixing frame, second traveling wheels 671 are arranged at the front end and the rear end of the second wheel shaft 67, a fourth chain wheel is fixedly arranged on the second wheel shaft 67, and the fourth chain wheel is in transmission connection with the second driving gear through a third chain; two ends of the second swing link 66 are respectively connected to the second rotating shaft 65 and the second wheel axle 67, and the wheel axle connecting rod 68 is connected to the first wheel axle 64 and the second wheel axle 67, so as to realize synchronous lifting of the first wheel axle 64 and the second wheel axle 67. In practical use, the transverse moving device is arranged on the base of the automobile, and the extending direction of the wheel axle is parallel to the front and back direction of the automobile. When the first driving gear rotates, the first wheel axle 64 rotates, and the moving device can drive the vehicle to move transversely. When the second driving gear rotates, the second rotating shaft 65 rotates along with the second driving gear to drive the second swing rod 66 to swing, so that the wheel set mechanism 6 is lifted, and when the second driving gear is not used, the wheel set mechanism 6 can be folded, so that the walking wheel can normally run away from a ground vehicle.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A manual worm gear moving type control mechanism is characterized by comprising:

a worm wheel operating mechanism including a worm mounted at one end of a first operating lever and engaged with a worm wheel, and a first operating lever swingably mounted between the first link and the second link to drive the worm to rotate;

2. The manual worm gear and worm handling control mechanism of claim 1, wherein the clutch includes a first disc, a second disc, and a disc link; the first disk body is arranged between the worm wheel and the first driving gear, is provided with a first gear ring matched with the first driving gear, and is provided with a second gear ring matched with the first gear ring; the second disc body is arranged between the worm wheel and the second driving gear, and is provided with a third gear ring matched with the second driving gear, and the second driving gear is provided with a fourth gear ring matched with the third gear ring; the disk body connecting rod can penetrate through the worm wheel in a front-back sliding mode, and two ends of the disk body connecting rod are connected with the first disk body and the second disk body respectively.

3. The manual worm and gear moving control mechanism as claimed in claim 2, wherein the toggle member comprises a main body and a first extension arm and a second extension arm respectively arranged at the front side and the rear side of the main body; the main body part is provided with a first limiting groove matched with the first tray body and a second limiting groove matched with the second tray body; the first extension arm is sleeved with the rotating shaft and is positioned on the front side of the first driving gear, a fifth gear ring is arranged on the rear side of the first extension arm, and the first driving gear is provided with a sixth gear ring matched with the fifth gear ring; the first extension arm is sleeved with the rotating shaft and located on the rear side of the second driving gear, a seventh gear ring is arranged on the front side of the first extension arm, and an eighth gear ring matched with the seventh gear ring is arranged on the second driving gear.

4. The manual worm gear handling control mechanism of claim 1, wherein the first lever includes a sleeve, a mounting seat, and a mounting shaft; the two mounting seats are arranged at the lower end of the sleeve at intervals, and the worm is arranged between the two mounting seats; the mounting shaft penetrates through the first mounting seat, the worm and the second mounting seat, and two ends of the mounting shaft are respectively connected with the first connecting rod and the second connecting rod.

5. The manual worm and gear handling control mechanism of claim 4, wherein the mounting seat comprises a seat body and a ratchet, a pawl, a first coil spring, a second coil spring mounted in the seat body; the ratchet wheel is fixed with one end of the worm wheel; the pawl is arranged in the seat body in a swinging mode through a ratchet shaft and is positioned on the ratchet wheel, the pawl is provided with a first side and a second side which are symmetrically arranged, one end, close to the ratchet wheel, of the first side is provided with first ratchet teeth used for pushing the ratchet wheel to rotate in the positive direction, and one end, close to the ratchet wheel, of the second side is provided with second ratchet teeth used for pushing the ratchet wheel to rotate in the negative direction; the first coil spring abuts a first side of the pawl and the second coil spring abuts a second side of the pawl.

6. The manual worm-and-gear handling control mechanism of claim 5, wherein a first protrusion is provided at an end of the first side of the pawl away from the ratchet wheel, a second protrusion is provided at an end of the second side of the pawl away from the ratchet wheel, and the first protrusion and the second protrusion form an included angle; the first coil spring is abutted against the first protruding part, and the second coil spring is abutted against the second protruding part; the first operating lever further comprises a rotating rod rotatably arranged on the sleeve, the lower end of the rotating rod is fixedly provided with a driving lever, and the driving lever extends into the first mounting seat and abuts against the pawl to push the pawl to rotate.

7. The manual worm and gear handling control mechanism of claim 6, wherein the two mounting seats are symmetrical, the first extensions of the two pawls are connected, and the second extensions of the two pawls are connected.

8. The manual worm and gear handling control mechanism of claim 6, wherein a handle is mounted on the top of the rotating rod and sleeved on the sleeve.