CN219864343U - Carrier clamping mechanism, carrier trolley and clamping carrier - Google Patents

Abstract

The utility model belongs to the technical field of stereo garages, and discloses a carrier clamping mechanism, a carrier trolley and a clamping carrier. The carrier clamp holding mechanism is provided with a clamp holding driving piece, a first transmission piece is arranged at the output end of the clamp holding driving piece and is provided with two first output shafts, a second transmission piece is arranged on each first output shaft and is provided with two second output shafts so as to control the folding and unfolding of two clamp arms, the carrier clamp holding mechanism is less in driving piece, simple in transmission structure and easy to overhaul and maintain, and the clamp arm assemblies on two sides are high in action consistency. The carrying trolley only needs one driving piece to drive the clamping arm assemblies on two sides, the consistency of supporting the wheels of the automobile is high, the cost is saved, the transmission structure is simple, and the maintenance is convenient. The clamp type carrier has the advantages of few driving parts, low cost, simple transmission, convenient maintenance and high consistency of supporting automobiles.

Description

Carrier clamping mechanism, carrier trolley and clamping carrier

Technical Field

The utility model relates to the technical field of stereo garages, in particular to a carrier clamping mechanism, a carrier trolley and a clamping carrier.

Background

At present, the stereo garage comprises lifting type, lifting and transverse type, plane moving type, roadway stacking type, vertical circulating type and the like, wherein most of garages are realized by automatic carrying robots for carrying automobiles.

At present, common carriers in China are divided into two major types, namely comb teeth type carriers and clamp type carriers. The intelligent stereo garage adopting the carrier has much higher efficiency for accessing vehicles than the intelligent stereo garage adopting the vehicle carrying board exchange technology in the past.

The structure of a typical clamp carrier: the device comprises two carrying trolleys, and the two carrying trolleys have the same structure under the general condition;

both sides of every floor truck all are equipped with the arm lock that sets up in pairs, and the rotatable of arm lock, pivoted arm lock have two states: one is attached to the side edge of the carrying trolley, two clamping arms are far away from each other (in a folded state and idle load), and the other is used for filling the wheels of the automobile after the two clamping arms are unfolded to be close to each other, so that the four wheels of the automobile are clamped and supported by the four pairs of clamping arms.

The prior art that each carrying trolley is used for driving the paired clamping arms needs to use two driving motors to respectively drive the two paired clamping arms, so that more driving parts are used, energy is wasted, the consistency of folding and unfolding of the paired clamping arms on two sides cannot be well ensured by using two driving parts, and even if one driving part is used for double-side driving, the transmission structure is relatively complex, and the maintenance is inconvenient.

Therefore, there is a need to design a carrier clamping mechanism, a carrier trolley and a clamping carrier to solve the above problems.

Disclosure of Invention

The utility model aims to provide a clamping mechanism of a carrier, which adopts a driving piece to drive the advance of double-side clamping arm assemblies, and has the advantages of high action consistency of the clamping arm assemblies, low cost, simplified transmission structure and convenient maintenance.

The utility model further aims to provide the carrying trolley which only needs one driving piece to drive the clamping arm assemblies on two sides, and is high in consistency of supporting the wheels of the automobile, cost-saving, simple in transmission structure and convenient to overhaul.

The utility model further aims to provide the holding and clamping type carrier which has the advantages of few driving parts, low cost, simple transmission, convenience in maintenance and high consistency in supporting automobiles.

To achieve the purpose, the utility model adopts the following technical scheme:

the carrier embraces and presss from both sides mechanism, installs in walking framework, and above-mentioned walking framework can be along first direction motion, and above-mentioned carrier embraces and presss from both sides mechanism and includes:

the holding clamp driving piece is arranged on the walking frame body;

the transmission assembly comprises a first transmission part and two second transmission parts, the first transmission part is connected with the output end of the clamping driving part, the first transmission part is provided with two first output shafts, the clamping driving part can simultaneously drive the two first output shafts to rotate, the two second transmission parts are respectively connected with the two first output shafts, the second transmission part is provided with two second output shafts, and each first output shaft can simultaneously drive the corresponding two second output shafts to rotate;

defining the traveling direction of the carrier as a first direction and a direction perpendicular to the first direction in a horizontal plane as a second direction;

the two clamping arm assemblies are oppositely arranged in the second direction, the clamping arm assemblies comprise two clamping arms which are arranged at intervals along the first direction, the clamping arms are pivoted to the walking frame body, the two clamping arms in the same group are respectively connected with two second output shafts of one second transmission piece in a transmission mode, and the second output shafts can drive the corresponding clamping arms to rotate so that the two clamping arms in the same group can be opened or closed.

Optionally, the second output shaft is coaxially provided with a worm, the clamping arm includes a worm wheel and a rotating arm which are coaxially installed, the worm wheel is meshed with the worm, the worm can drive the worm wheel to rotate so as to enable the rotating arm to rotate, and the worm wheel and/or the rotating arm are respectively pivoted with the walking frame body.

Optionally, the worm wheel is C-shaped, and two ends of the worm wheel are respectively abutted to two sides of the rotating arm.

Optionally, a position avoiding recess is formed at the pivoting end of the rotating arm, and the position avoiding recess is in a shape of C;

the worm wheel comprises a limiting part, the limiting part is C-shaped and is matched with the avoidance concave shape, the pivoting end of the rotating arm is arranged on the limiting part, the limiting part can be axially inserted into the avoidance concave, and two ends of the limiting part are all abutted against the vertical wall of the avoidance concave.

Optionally, the worm wheel further includes a thickening portion, where the thickening portion is protruding in a vertical direction and is disposed around the outer periphery of the pivot end of the rotating arm.

Optionally, the worm wheel and/or the rotating arm are respectively pivoted with the walking frame body through a pivot shaft;

a conical roller bearing is arranged between the pivot shaft and the walking frame body, and the rotating arm and the worm wheel are coaxially fixed with the pivot shaft; or (b)

The pivot shaft is fixed on the walking frame, and a conical roller bearing is arranged between the pivot shaft and the rotating arm or the worm wheel.

The carrier comprises a walking frame body and the carrier holding and clamping mechanism, wherein the walking frame body can move along a first direction, and the carrier holding and clamping mechanism is arranged on the walking frame body and can hold and clamp two wheels of an automobile.

Optionally, the above-mentioned travelling bogie further includes:

a traveling driving member mounted to the traveling frame;

the third transmission piece is arranged at the output end of the walking driving piece and is provided with two third output shafts;

four groups of travelling wheel assemblies are respectively arranged at four corners of the travelling frame body, each travelling wheel assembly comprises a plurality of travelling wheels, and each travelling wheel is pivoted with the travelling frame body; each third output shaft is respectively connected with two travelling wheels, and two travelling wheel assemblies where the two travelling wheels are located are oppositely arranged along the second direction.

Optionally, an independent electric module placing cavity is formed on the walking frame body.

The holding and clamping type carrier comprises two carrying trolleys which are arranged at intervals along the first direction, wherein the two upper carrying trolleys are respectively used for carrying front wheels and rear wheels of the vehicles, and the distance between the two carrying trolleys is adjustable.

The utility model has the beneficial effects that:

the utility model provides a carrier clamping mechanism, which adopts a clamping driving piece, wherein a first transmission piece is arranged at the output end of the clamping driving piece and is provided with two first output shafts, a second transmission piece is arranged on each first output shaft, and the second transmission piece is provided with two second output shafts so as to control the folding and unfolding of two clamping arms.

The utility model also provides a carrying trolley which adopts the carrier clamping mechanism, only one driving piece is needed to drive the clamping arm assemblies on two sides, the consistency of supporting the wheels of the automobile is high, the cost is saved, the transmission structure is simple, and the overhaul is convenient.

The utility model also provides a holding and clamping type carrier, which adopts the two carrying trolleys with adjustable distance, so that the driving parts are few, the cost is low, the transmission is simple, the maintenance is convenient, and the consistency of the lifted automobile is high.

Drawings

Fig. 1 is a schematic structural diagram of a clamp carrier according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a clamp carrier according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a clamping arm according to an embodiment of the present utility model.

In the figure:

1000. a carrying trolley;

10. a clamping driving member; 11. a driving section; 12. a steering section;

20. a transmission assembly; 21. a first transmission member; 211. a first output shaft; 22. a second transmission member; 221. a second output shaft; 23. a worm;

30. a clamp arm assembly; 31. a clamp arm; 311. a worm wheel; 3111. a limit part; 3112. a thickening portion; 312. a rotating arm; 3121. a pivoting end; 31211. a clearance depression; 3122. a free end; 32. a pin joint shaft; 33. conical roller bearings;

200. a walking frame; 210. an electrical module placement cavity; 220. an upper plate; 230. a lower plate; 240. a vertical plate; 250. a cover plate; 300. a travel drive member; 400. a third transmission member; 410. a third output shaft; 500. a road wheel assembly; 510. a walking wheel; 511. a transmission part; 512. a walking unit; 520. a reversing gear; 600. an electrical box.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The present embodiment provides a clamp type carrier, as shown in fig. 1, where the clamp type carrier includes two carrying trolleys 1000 disposed at intervals along a first direction (X direction in fig. 1, that is, a traveling direction of the clamp type carrier), and a distance between the two carrying trolleys 1000 is adjustable. In order to better illustrate the structure of the carrier 1000, only one carrier 1000 is shown in the figure, and the other carrier 1000 is replaced with a block, and the structures of the two carriers 1000 are substantially identical. The structure for realizing the adjustable distance between the two carrying trolleys 1000 can be to output a distance-adjusting driving piece (different positions of the two carrying trolleys 1000) which moves along the first direction and is arranged on one carrying trolley 1000, and the other carrying trolley 1000 is in transmission connection with the output end of the distance-adjusting driving piece. The distance between the two carriages 1000 in the first direction may be adjusted by providing a link mechanism at the output end of the distance adjustment driving member, which is not limited herein. The spacing adjustment mode of the carrier 1000 has many modes in the prior art, and is not described in detail herein.

The carrying trolley 1000 comprises a walking frame 200 and a carrying device holding and clamping mechanism, the walking frame 200 can move along a first direction as an integral supporting frame, the carrying device holding and clamping mechanism is arranged on the walking frame 200 and can hold and clamp two wheels of an automobile, and the two carrying trolleys 1000 hold and clamp four wheels of the automobile together to lift the automobile.

In order to realize the clamping function of two wheels, the carrier clamping mechanism comprises two groups of clamping arm assemblies which are oppositely arranged along the second direction (Y direction in fig. 1, Y direction is perpendicular to X direction), each clamping arm assembly comprises two clamping arms which can be folded (unloaded) or unfolded (clamping wheels), the two groups of clamping arm assemblies are required to be driven by two driving motors for driving the clamping arm assemblies, more driving parts are needed, energy is wasted, the consistency of folding and unfolding of paired clamping arms on two sides cannot be well ensured by using two driving parts, and even if one driving part is adopted for double-side driving, the transmission structure is relatively complex, and the overhaul is inconvenient.

In order to solve the above-mentioned problems, the present embodiment provides a carrier clamping mechanism, as shown in fig. 1 and 2, which includes a clamping driving member 10, a transmission assembly 20 and a clamping arm assembly 30, wherein the clamping driving member 10 is mounted on a walking frame 200; the transmission assembly 20 comprises a first transmission member 21 and two second transmission members 22, the first transmission member 21 is connected with the output end of the clamping driving member 10, the first transmission member 21 is provided with two first output shafts 211, the clamping driving member 10 can simultaneously drive the two first output shafts 211 to rotate, the two second transmission members 22 are respectively connected with the two first output shafts 211, the second transmission member 22 is provided with two second output shafts 221, and each first output shaft 211 can simultaneously drive the corresponding two second output shafts 221 to rotate; the arm assembly 30 includes two arms 31 disposed at intervals along the first direction, the arms 31 are pivotally connected to the walking frame 200, the two arms 31 of the same group are respectively connected to two second output shafts 221 of a second transmission member 22 in a transmission manner, and the second output shafts 221 can drive the corresponding arms 31 to rotate so that the two arms 31 of the same group can open or close simultaneously. Through adopting a embracing and pressing from both sides driving piece 10, first driving piece 21 installs and is embraced the output that presss from both sides driving piece 10 and have two first output shafts 211, again installs a second driving piece 22 on every first output shaft 211, and second driving piece 22 has two second output shafts 221 to control the drawing in and expanding of two arm clamps 31, above-mentioned carrier embraces and presss from both sides the driving piece of mechanism and is few, and the transmission structure is retrencied, easily overhauls and maintains, and the arm clamps subassembly 30 of both sides action uniformity is high.

Optionally, the first transmission member 21 and the second transmission member 22 are gear boxes, and the gear boxes are standard components, so that the gear boxes with corresponding functions can be purchased according to actual requirements, which is not described herein.

Optionally, as shown in fig. 1 and 2, the walking frame 200 includes a lower plate 230 and a vertical plate 240 vertically mounted on the lower plate 230, and in order to achieve better support of the transmission shaft, the first output shaft 211 and the second output shaft 221 are pivotally connected to the vertical plate 240.

Optionally, the clasping driving member 10 includes a driving portion 11 and a steering portion 12 connected to each other, the driving portion 11 extends along the second direction, the steering portion 12 is L-shaped, and the first transmission member 21 is mounted at the other end of the steering portion 12.

Optionally, the driving part 11 is a servo motor, and the servo motor has the advantages of high control precision and good stability.

Preferably, as shown in fig. 1 and 2, the worm 23 is coaxially mounted on the second output shaft 221, the arm 31 includes a worm wheel 311 and a rotating arm 312 which are coaxially mounted, the worm wheel 311 is engaged with the worm 23, the worm 23 can drive the worm wheel 311 to rotate so as to rotate the rotating arm 312, and the worm wheel 311 and/or the rotating arm 312 are respectively pivoted with the walking frame 200. The combination of worm wheel 311 and worm 23 is compact to the combined structure of rack and pinion, and the transmission ratio is big for the revolution of drive portion 11 reduces, combines servo motor's drive, and the precision is higher, and power is sufficient and precision and stability are high. It will be appreciated that the worm wheel 311 and the pivoting end 3121 of the pivoting arm 312 are mounted in a vertical direction (the vertical direction being perpendicular to the X-direction and the Y-direction, respectively). Specifically, as shown in fig. 1 to 3, the worm wheel 311 and/or the rotating arm 312 are pivotally connected to the traveling frame 200 via the pivot shaft 32, respectively; in this embodiment, the rotating arm 312 is mounted on the pivot shaft 32 in an interference manner, the worm 23 is mounted on the rotating arm 312, bearings are mounted at both ends of the pivot shaft 32, and both bearings are mounted on the walking frame 200. Specifically, the walking frame 200 further includes an upper plate 220, the upper plate 220 is covered on at least two vertical plates 240, and two bearings are respectively installed on the upper plate 220 and the lower plate 230, that is, the worm wheel 311, the rotating arm 312 and the pivot shaft 32 rotate simultaneously, so as to realize the rotation of the walking frame 200. In other embodiments, the pivot shaft 32 may be fixed on the walking frame 200, and a bearing is disposed between the pivot shaft 32 and the rotating arm 312 or the worm wheel 311, that is, the worm wheel 311 and the rotating arm 312 rotate, and the pivot shaft 32 is fixed, so that the rotating arm 312 can rotate relative to the walking frame 200, which is not limited herein.

In another embodiment, the worm wheel 311 may be mounted on the pivot shaft 32 in an interference manner, and the pivot end 3121 of the rotating arm 312 is mounted on the worm wheel 311, which is not limited herein.

Alternatively, the free end 3122 of the rotating arm 312 is switched between the collapsed and expanded states by rotating 90 ° around the pivoting end 3121 of the rotating arm 312.

Preferably, as shown in fig. 1 and 2, the bearing is a conical roller bearing 33, and the conical roller bearing 33 has a certain function of preventing axial play.

Preferably, as shown in fig. 2, the walking frame 200 further includes a cover plate 250, and the cover plate 250 is fastened on the upper plate 220 and located above the bearing, so as to cover the internal structure and beautify the appearance.

Since the rotating arm 312 and the worm wheel 311 are usually connected by screws at the time of installation, the rotating arm 312 receives relatively large circumferential force during the process of "rubbing" the wheel, and the reliability of the screw connection is low.

In order to solve the above-mentioned problem, preferably, as shown in fig. 2 and 3, the worm wheel 311 is C-shaped, two ends of the worm wheel 311 are respectively abutted against two sides of the rotating arm 312, through the above arrangement, the worm wheel 311 plays a limiting role on two sides of the rotating arm 312 while providing transmission connection, thereby reducing the bearing of tangential force of the connecting screw, preventing the screw connection from failure, and providing another effective means for resisting the tangential force.

Further, as shown in fig. 3, the pivot end 3121 of the rotating arm 312 is provided with a avoidance recess 31211, and the avoidance recess 31211 is C-shaped; the worm wheel 311 comprises a limiting portion 3111, the limiting portion 3111 is C-shaped and is adapted to the shape of the avoidance recess 31211, the pivot end 3121 of the rotating arm 312 is mounted on the limiting portion 3111, the limiting portion 3111 can be axially inserted into the avoidance recess 31211, and two ends of the limiting portion 3111 are both abutted to the vertical wall of the avoidance recess 31211. By arranging the avoidance recess 31211, the arrangement of the worm wheel 311 occupies a smaller space, and the structure is more compact.

Preferably, the worm wheel 311 further includes a thickening portion 3112, and the thickening portion 3112 is protruding in the vertical direction on the limiting portion 3111 and surrounds the outer periphery of the pivoting end 3121 of the rotating arm 312. The above arrangement properly increases the height of the worm wheel 311, ensures the transmission strength of the worm wheel 311, effectively protects the outer periphery of the pivot end 3121 of the rotating arm 312, and allows the free end 3122 of the rotating arm 312 to be mounted along the inner surface of the thickened portion 3112 for convenient alignment during mounting.

Preferably, as shown in fig. 1 and 2, the cart 1000 further includes a traveling driving member 300, a third transmission member 400, and four sets of traveling wheel assemblies 500, wherein the traveling driving member 300 is mounted to the traveling frame 200; the third transmission member 400 is mounted at the output end of the traveling driving member 300, and the third transmission member 400 has two third output shafts 410; four groups of travelling wheel assemblies 500 are respectively arranged at four corners of the travelling frame body 200, each travelling wheel assembly 500 comprises a plurality of travelling wheels 510, and each travelling wheel 510 is pivoted with the travelling frame body 200; each third output shaft 410 is respectively connected to two travelling wheels 510, and two travelling wheel assemblies 500 where the two travelling wheels 510 are located are oppositely arranged along the second direction. Through the arrangement, one driving piece drives the two groups of traveling wheel assemblies 500 to roll simultaneously, and then the position of the automobile is moved after lifting. In this embodiment, in the four sets of the traveling wheel assemblies 500, two sets of the traveling wheel assemblies 500 each include two traveling wheels 510, and the two traveling wheels 510 are independent of each other, i.e. the two sets are unpowered, however, the number of the traveling wheels 510 can be set arbitrarily, which is not limited herein.

The other two sets of traveling wheel assemblies 500 are driven by the traveling driving member 300, however, the traveling driving member 300 may be correspondingly disposed to the unpowered two sets of traveling wheel assemblies 500 if the space allows, which is not limited herein. Specifically, as shown in fig. 1 and 2, the traveling wheel assembly 500 includes two traveling wheels 510 arranged side by side along a first direction, wherein one traveling wheel 510 is connected to the third output shaft 410, the traveling wheel 510 includes a transmission portion 511 and a traveling portion 512 that are coaxially connected, the transmission portion 511 is in a gear structure, a reversing gear 520 is further disposed between the two traveling wheels 510, where the traveling portion 512 is abutted to the ground (or a position where a track or the like can travel), and the reversing gear 520 is meshed with the two transmission portions 511, so as to achieve the rotation direction consistency of the two traveling portions 512. In other embodiments, a plurality of road wheels 510 may be provided in the powered road wheel assembly 500, and a reversing gear 520 may be provided between two adjacent road wheels 510, which is not limited herein.

Preferably, as shown in fig. 1 and 2, the walking frame 200 is provided with an independent electric module placing cavity 210 for placing the electric box 600, so that the parts of the carrying trolley 1000 are clearly divided, and the maintenance is more clear. Optionally, the walking drive 300 and the third transmission 400 are also placed into the corresponding placement cavities. Optionally, the clasping drive 10, the first transmission member 21 and the second transmission member 22 are also placed in the respective placement cavities, respectively. The shape and position of the specific placement cavity can be appropriately adjusted, and will not be described here.

The carrying trolley 1000 of the embodiment adopts the carrier holding and clamping mechanism, only one driving piece is needed to drive the double-side clamping arm assemblies 30, the consistency of supporting the wheels of the automobile is high, the cost is saved, the transmission structure is simple, and the overhaul is convenient.

The embracing clamp type carrier of the embodiment adopts the two distance-adjustable carrying trolleys 1000, the two carrying trolleys 1000 are respectively used for carrying front wheels and rear wheels of the vehicle, driving parts are few, the cost is low, the transmission is simple, the maintenance is convenient, and the consistency of the lifted vehicles is high.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The carrier embraces and presss from both sides mechanism, installs in walking framework (200), walking framework (200) can follow first direction motion, its characterized in that, carrier embraces and presss from both sides mechanism and includes:

a holding and clamping driving member (10) mounted on the traveling frame body (200);

the transmission assembly (20) comprises a first transmission part (21) and two second transmission parts (22), wherein the first transmission part (21) is connected with the output end of the holding clamp driving part (10), the first transmission part (21) is provided with two first output shafts (211), the holding clamp driving part (10) can simultaneously drive the two first output shafts (211) to rotate, the two second transmission parts (22) are respectively connected with the two first output shafts (211), the second transmission part (22) is provided with two second output shafts (221), and each first output shaft (211) can simultaneously drive the corresponding two second output shafts (221) to rotate;

defining the traveling direction of the carrier as a first direction and a direction perpendicular to the first direction in a horizontal plane as a second direction;

the two arm clamping assemblies (30) are oppositely arranged in the second direction, the arm clamping assemblies (30) comprise two arm clamping assemblies (31) which are arranged at intervals along the first direction, the arm clamping assemblies (31) are pivoted to the walking frame body (200), the two arm clamping assemblies (31) in the same group are respectively connected with two second output shafts (221) of the second transmission piece (22) in a transmission mode, and the second output shafts (221) can drive the corresponding arm clamping assemblies (31) to rotate so that the two arm clamping assemblies (31) in the same group can be opened or closed.

2. The carrier clamp mechanism according to claim 1, wherein the second output shaft (221) is coaxially provided with a worm (23), the clamp arm (31) comprises a worm wheel (311) and a rotating arm (312) which are coaxially provided, the worm wheel (311) is meshed with the worm (23), the worm wheel (311) can be driven by the worm (23) to rotate so as to enable the rotating arm (312) to rotate, and the worm wheel (311) and/or the rotating arm (312) are respectively pivoted with the walking frame body (200).

3. The carrier clamp mechanism according to claim 2, wherein the worm wheel (311) is C-shaped, and both ends of the worm wheel (311) are respectively abutted against both sides of the rotating arm (312).

4. A carrier clamp mechanism according to claim 3, wherein the pivot end (3121) of the swivel arm (312) is provided with a clearance recess (31211), the clearance recess (31211) being C-shaped;

the worm wheel (311) comprises a limiting part (3111), the limiting part (3111) is C-shaped and is matched with the shape of the avoidance recess (31211), the pivoting end (3121) of the rotating arm (312) is installed on the limiting part (3111), the limiting part (3111) can be axially inserted into the avoidance recess (31211), and two ends of the limiting part (3111) are both abutted to the standing wall of the avoidance recess (31211).

5. The carrier clamp mechanism according to claim 4, wherein the worm wheel (311) further comprises a thickening portion (3112), and the thickening portion (3112) is disposed on the limiting portion (3111) in a protruding manner in a vertical direction and surrounds an outer periphery of the pivot end (3121) of the rotating arm (312).

6. The carrier clamp mechanism according to claim 2, wherein the worm wheel (311) and/or the rotating arm (312) are/is pivotally connected to the travelling frame (200) via a pivot shaft (32), respectively;

a conical roller bearing (33) is arranged between the pivot shaft (32) and the walking frame body (200), and the rotating arm (312) and the worm wheel (311) are coaxially fixed with the pivot shaft (32); or (b)

The pivot shaft (32) is fixed on the walking frame body (200), and a conical roller bearing (33) is arranged between the pivot shaft (32) and the rotating arm (312) or the worm wheel (311).

7. The carrier trolley is characterized by comprising a walking frame body (200) and the carrier clamping mechanism as claimed in any one of claims 1-6, wherein the walking frame body (200) can move along a first direction, and the carrier clamping mechanism is arranged on the walking frame body (200) and can clamp two wheels of an automobile.

8. The cart of claim 7, further comprising:

a travel drive member (300) mounted to the travel frame (200);

the third transmission part (400) is arranged at the output end of the walking driving part (300), and the third transmission part (400) is provided with two third output shafts (410);

four groups of travelling wheel assemblies (500) are respectively arranged at four corners of the travelling frame body (200), each travelling wheel assembly (500) comprises a plurality of travelling wheels (510), and each travelling wheel (510) is pivoted with the travelling frame body (200); each third output shaft (410) is respectively connected with two travelling wheels (510), and two travelling wheel assemblies (500) where the two travelling wheels (510) are located are oppositely arranged along the second direction.

9. The carrying trolley according to claim 7, wherein the walking frame (200) is provided with an independent electric module placing cavity (210).

10. A clamp carrier comprising two carrying trolleys according to any one of claims 7 to 9 arranged at intervals along a first direction, the two carrying trolleys being respectively for front and rear wheels of the carrying vehicle, the distance between the two carrying trolleys being adjustable.