CN115285602A - Freely-turnable articulated dragon - Google Patents

Abstract

The invention relates to a freely-steering articulated dragon, which comprises a support frame and a dragon body, wherein the support frame comprises a base, the base is provided with a universal wheel, the base is provided with a first hinge point and a second hinge point, the dragon body is provided with a third hinge point and a fourth hinge point, the first hinge point is hinged with the third hinge point, the second hinge point is hinged with the fourth hinge point through a lifting platform, the distance from the first hinge point to the fourth hinge point is equal to the distance from the second hinge point to the fourth hinge point, the lifting platform is provided with a fifth hinge point, the base is further provided with a hydraulic cylinder, a piston rod of the hydraulic cylinder is hinged with the fifth hinge point, a marking plate is arranged on the piston rod, the marking plate is marked with angle scales, and the lifting platform is positioned on one side of the marking plate. The hinge dragon of this technical scheme can be guaranteeing portable and can carry out under the prerequisite of angle modulation, realize the accurate regulation of angle to ensure that accommodation process is light laborsaving, make the promotion that installation and follow-up operating efficiency can show simultaneously.

Description

Freely-steering articulated dragon

Technical Field

The invention relates to the technical field of screw conveyors, in particular to a freely-steering articulated dragon

Background

The screw conveyer is also called as a screw conveyer, the screw conveyer comprises a conveying bin, a motor is arranged at one end of the conveying bin, a screw shaft connected with the motor is arranged in the conveying bin, the working principle is that the motor drives the screw shaft to rotate, when the screw shaft rotates, the screw blades rotate synchronously, materials are pushed by the rotating screw blades to be conveyed to a specified position, and the screw shafts with blades in different shapes can be configured according to different conveyed materials.

Traditional hinge dragon is because bulky, its angle modulation is very difficult when the installation, and be difficult to remove, can't adjust the position of setting according to the operation demand of reality, for solving the problem that the angle modulation that traditional hinge dragon exists and remove inconvenience, public number is CN214297909U, the chinese patent of the patent name "a screw conveyer convenient to remove" discloses a novel hinge dragon, its support frame, feed hopper, first removal wheel, a conveying cylinder, the bracing piece, support column and second remove the wheel, feed hopper is located the top of support frame, first removal wheel is located the bottom of support frame, a conveying cylinder is located the bottom of feed hopper, the bracing piece is located the both sides of a conveying cylinder, the support column is located the bottom of a conveying cylinder, the second removes the bottom that the wheel is located the support frame, feed hopper's bottom is equipped with folding hose, one side of feed hopper is equipped with the connecting piece, a conveying cylinder includes conveyer trough and bin outlet, the conveyer trough is located the inside of a conveying cylinder, folding hose is connected with the conveyer trough pipeline, the connecting piece is connected with the conveyer trough pivot, the inside of bracing piece is equipped with the telescopic groove, hydraulic pressure is equipped with the hydraulic pressure regulation pole in the hydraulic pressure when the telescopic link, the hydraulic pressure regulation pole reaches the conveying cylinder, the effect of the whole conveying cylinder, then the telescopic link of the effect of the hydraulic pressure regulation pole is realized through the telescopic link and the rotary regulation pole, the whole conveying cylinder, the telescopic link of the effect of the rotary regulation pole, then the rotary regulation pole of the rotary hydraulic pressure regulation pole, the whole conveying cylinder is convenient for the rotary hydraulic pressure is realized through the rotary hydraulic pressure of the rotary regulating rod.

However, the dragon with the structure cannot accurately measure the specifically adjusted angle during angle adjustment, the adjusted angle of the dragon is obtained only by means of visual observation and experience judgment of operators, and therefore the dragon has strong subjectivity, the adjusted dragon cannot keep the optimal angle, especially under the condition that a plurality of scenes are recycled, the adjusted angle of the dragon is determined by repeated observation and comparison during installation every time, the angle adjusting process is very troublesome, time and labor are wasted, and the installation efficiency and the subsequent operation efficiency of the dragon are seriously affected, so that the dragon capable of solving the problems is urgently needed.

Disclosure of Invention

Aiming at the above situation, the invention aims to solve the problems that the angle adjustment has strong subjectivity, the angle adjustment process is time-consuming and labor-consuming, and the efficiency of the installation and subsequent operation of the articulated dragon is seriously affected because the specific adjustment angle cannot be accurately calculated when the movable and angle-adjustable articulated dragon in the prior art is subjected to angle adjustment, and the invention provides the articulated dragon which can realize the accurate adjustment of the angle of the articulated dragon on the premise of ensuring that the articulated dragon is movable and can be subjected to angle adjustment, ensures that the adjustment process is light and labor-saving, and can obviously improve the efficiency of the installation and subsequent operation.

In order to achieve the purpose, the technical solution of the invention is as follows:

the utility model provides a can freely turn to formula of living hinge dragon, it includes the support frame and installs the hinge dragon body on the support frame, the support frame includes the base, be equipped with the universal wheel on the base, the base has first pin joint and second pin joint, the hinge dragon body has third pin joint point and fourth pin joint, the first pin joint point of base is articulated with the third pin joint point of hinge dragon body, the second pin joint of base is articulated through the fourth pin joint of elevating platform with the hinge dragon body, and the distance of first pin joint to fourth pin joint is isometric with the distance of second pin joint to fourth pin joint, the elevating platform has fifth pin joint, still be equipped with the pneumatic cylinder on the base, the piston rod of pneumatic cylinder is articulated with the fifth pin joint of elevating platform, be equipped with the mark board on the piston rod of pneumatic cylinder, the mark board marks the angle scale, the elevating platform is located one side of mark board.

Preferably, the mark board includes outside plate body and inside plate body, and the outside plate body is the semicircle form, and on the outside plate body was located to the angle scale, the one end of inside plate body was connected with the middle part of outside plate body, and its other end was fixed with the piston rod of pneumatic cylinder to relative with the fifth pin joint of elevating platform, be equipped with the directional mark relative with the angle scale on the elevating platform.

Preferably, the base is provided with a slide way arranged along the length direction of the base, the outer wall of a piston rod of the hydraulic cylinder is provided with a slide block, and the slide block is connected in the slide way in a sliding manner.

Preferably, a positioning groove is formed in a piston rod of the hydraulic cylinder, and the piston rod is hinged to a fifth hinge point of the lifting platform through the inner wall of the positioning groove.

Preferably, the base is detachably connected with a protective cover, and the hydraulic cylinder is inserted into the protective cover for fixing.

Preferably, a slot is formed in the protective cover, the cylinder body of the hydraulic cylinder is installed in the slot, and a positioning flange is formed on the outer periphery of the protective cover and is in threaded connection and fixation with the base through the positioning flange.

Preferably, the base is hinged with a lock catch which is equal in number and corresponds to the universal wheel, the lock catch is U-shaped, two ends of the lock catch are hinged with the base, a clamping groove for accommodating a part between two ends of the lock catch is arranged on a wheel seat of the universal wheel, and the clamping groove is communicated with the inside of the wheel seat of the universal wheel.

Preferably, the base is provided with a guide groove opposite to the lock catch, the guide groove is internally and threadedly connected with a pushing member, one end of the pushing member penetrates through the guide groove to abut against the lock catch, a spring is connected between the lock catch and the base, and the lock catch can move at a position where the lock catch does not depart from the abutting position with the pushing member.

Preferably, the pushing member includes a screw portion and a pressing head, the screw portion is in threaded connection with the guide groove, and the pressing head abuts against a portion between both ends of the lock catch.

Preferably, the pressure head is provided with a containing groove, one end of the screw rod part is inserted into the containing groove, the inner wall of the containing groove is provided with an annular steering groove, and the screw rod part is provided with a steering block inserted into the steering groove.

Compared with the prior art, the invention has the advantages that:

(1) The lower extreme of support frame base is equipped with the universal wheel, and the setting up of universal wheel makes carrying out position control that support frame and hinge dragon body can be arbitrary, has solved traditional hinge dragon and has removed inconvenient problem because of bulky.

(2) When the lifting platform rotates around the hinged position of the lifting platform and the base, the lifting platform rotates around the hinged position of the dragon body, the dragon body synchronously rotates around the hinged position of the base along with the rotation of the lifting platform, and then the dragon body is driven by the rotation of the lifting platform to carry out angle adjustment.

(3) The included angle between the lifting platform and the base can be obtained by reading the angle scales on the coincident position of the lifting platform, the read angle information is the included angle between the auger body and the base, the rotated angle can be visually and accurately obtained when the angle of the auger body is adjusted by an operator, the adjustment error is reduced according to the actual situation of an operation site, the adjusted auger can keep the best angle, particularly under the condition of recycling a plurality of scenes, the angle corresponding to the auger body is only needed to be recorded when the auger body is installed for the first time, during subsequent installation, the auger body is rotated by the same angle as the angle data recorded for the first time, the adjustment angle for determining the auger is compared without repeated observation of the operator, the difficulty of angle adjustment is greatly simplified, and the efficiency of installation and subsequent operation of the auger body can be greatly improved.

Drawings

FIG. 1 is a schematic view of the overall construction of the dragon of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the portion B of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of the overall construction of another perspective of the inventive auger;

FIG. 5 is an enlarged view of the section C of FIG. 4 according to the present invention;

fig. 6 is a schematic cross-sectional view of a dragon jacking member of the present invention.

As shown in the figure:

1. a dragon body; 2. a base; 201. a slideway; 202. a guide groove; 3. a universal wheel; 301. a card slot; 4. a lifting platform; 401. A pointing marker; 5. a hydraulic cylinder; 501. a piston rod; 501a, a sliding block; 501b, positioning grooves; 502. a cylinder body; 6. marking a plate; 601. an outer plate body; 602. an inner plate body; 7. a protective cover; 701. a slot; 702. a positioning flange; 8. locking; 9. A pushing member; 901. a screw section; 901a, a turning block; 902. a pressure head; 902a, a receiving groove; 902b, a turning groove.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships usually placed when the product of the present invention is used, and are only for the convenience of simplifying the description, but do not indicate or imply that the orientations must have specific orientations and specific orientation configurations and operations, and thus, the present invention should not be construed as being limited.

As shown in fig. 1 and 4, a freely rotatable articulated dragon comprises a support frame and an articulated dragon body 1 arranged on the support frame, wherein the articulated dragon body 1 comprises a conveying bin consistent with the existing articulated dragon, a motor arranged outside the conveying bin, and a spiral shaft arranged in the conveying bin, the spiral shaft is connected with the motor and is driven to rotate by paint, particularly, the support frame comprises a base 2, the articulated dragon body 1 is arranged on the base 2, the lower end of the base 2 is provided with a universal wheel 3, the arrangement of the universal wheel 3 enables the support frame and the articulated dragon body 1 to be capable of arbitrarily adjusting the position, the problem that the traditional articulated dragon is inconvenient to move due to large volume is solved, the base 2 is provided with a first hinge point and a second hinge point, the articulated dragon body 1 is provided with a third hinge point and a fourth hinge point, wherein the third hinge point is close to the end part of the articulated dragon body 1, and the fourth hinge point is separated from the third hinge point by a certain distance, the first hinge point of the base 2 is hinged with the third hinge point of the dragon body 1, so that the dragon body 1 can rotate around the hinge position with the base 2, the second hinge point of the base 2 is hinged with the fourth hinge point of the dragon body 1 through the lifting platform 4, the lifting platform 4 can rotate around the hinge position with the base 2 and the dragon body 1, the base 2, the dragon body 1 and the lifting platform 4 jointly form a link mechanism, when the lifting platform 4 rotates around the hinge position with the base 2, the lifting platform simultaneously rotates around the hinge position with the dragon body 1, the dragon body 1 synchronously rotates around the hinge position with the base 2 along with the rotation of the lifting platform 4, further realizing that the dragon body 1 is driven by the rotation of the lifting platform 4 to carry out angle adjustment, in the invention, the distance from the first hinge point to the fourth hinge point is equal to the distance from the second hinge point to the fourth hinge point, thereby forming an isosceles triangle among the base 2, the dragon hinge body 1 and the lifting platform 4, when the lifting platform 4 rotates around a hinged position with the base 2, an included angle between the dragon hinge body 1 and the base 2 is constantly changed, at the moment, the included angle between the dragon hinge body 1 and the base 2 is synchronously changed to be the same angle, the lifting platform 4 is also provided with a fifth hinged point, the base 2 is also provided with a hydraulic cylinder 5, a piston rod 501 of the hydraulic cylinder 5 is hinged with the fifth hinged point of the lifting platform 4, when the lifting platform 4 rotates, the lifting platform synchronously rotates around the hinged position with the piston rod 501 of the hydraulic cylinder 5, the hydraulic cylinder 5 is used as a power source, when a piston rod 501 of the hydraulic cylinder is ejected or retracted, the lifting platform 4 can be driven to rotate, a hydraulic oil circuit is connected with a rod cavity and/or a rodless cavity of the hydraulic cylinder 5 and a hydraulic loop is formed, namely, the hydraulic cylinder 5 can be used for feeding oil in any one of three oil feeding modes of rodless cavity feeding, rod cavity feeding and differential connection, because the elevating platform 4 does not need to be pushed to rotate manually, the angle adjustment of the hinge body 1 can be carried out rapidly, and the efficiency of the installation and the subsequent operation of the hinge body is further improved, in addition, the marking plate 6 is arranged on the piston rod 501 of the hydraulic cylinder 5, the marking plate 6 is marked with angle scales, the elevating platform 4 is positioned on one side of the marking plate 6, when the elevating platform 4 rotates, the included angle between the elevating platform 4 and the base 2 can be obtained by reading the angle scales on the position which is overlapped with the elevating platform 4, because the included angle between the hinge body 1 and the base 2 is always consistent with the included angle between the elevating platform 4 and the base 2, the read angle information is the included angle between the hinge body 1 and the base 2, and based on the arrangement, an operator can intuitively and accurately obtain the rotated angle when adjusting the angle of the hinge body 1, according to the actual conditions of operation scene, reduce the error of regulation, the dragon of messenger after the regulation keeps the optimal angle, especially under the circumstances that uses at several scene circulations, the angle that the dragon body 1 corresponds when only needing the first installation of record, during subsequent installation again, with the dragon body 1 of hinge rotate with the angle data the same of first record can, the angle of regulation of definite dragon is compared in the observation that need not operating personnel relapse, and then greatly simplified the degree of difficulty of angle modulation, make the installation of dragon body 1 and the efficiency of follow-up operation promote by a wide margin.

As shown in fig. 1, 2 and 4, the label plate 6 includes an outer plate 601 and an inner plate 602, the outer plate 601 is in a semi-circular shape, the angle scale is disposed on the outer plate 601, one end of the inner plate 602 is connected to the middle of the outer plate 601, and the other end of the inner plate is fixed to the piston rod 501 of the hydraulic cylinder 5 and is opposite to the fifth hinge point of the lifting table 4, so that the outer plate 601 is centered on the hinge point of the lifting table 4 and the piston rod 501 of the hydraulic cylinder 5, and the outer plate 601 is in a semi-circular shape, so that an operator can clearly observe the angle change of the lifting table 4 inside the outer plate 601 when the lifting table 4 rotates, and further, the lifting table 4 is provided with a direction mark 401 opposite to the angle scale, and the direction mark 401 points to different angle scales when the lifting table 4 rotates, thereby ensuring that the operator can intuitively and more accurately observe the rotation angle of the lifting table 4.

As shown in fig. 1 and fig. 3, a slide 201 arranged along the length direction of the base 2 is provided, a slide block 501a is provided on the outer wall of a piston rod 501 of the hydraulic cylinder 5, the slide block 501a is slidably connected in the slide 201, and the piston rod 501 of the hydraulic cylinder 5 can always keep sliding along the linear direction through the matching arrangement of the slide 201 and the slide block 501 a.

As shown in fig. 1 and fig. 3, a positioning groove 501b is formed in a piston rod 501 of the hydraulic cylinder 5, the positioning groove 501b is arranged to enable the piston rod 501 of the hydraulic cylinder 5 to be in a shape of Chinese character 'ao', the piston rod 501 is hinged to a fifth hinge point of the lifting table 4 through the inner wall of the positioning groove 501b, and based on the arrangement, the rotation direction of the lifting table 4 is limited through the inner wall of the positioning groove 501b in the piston rod 501, so that the horizontal deflection of the piston rod is avoided when the piston rod rotates, and the rotating angle data can be accurately read by a rotating operator.

As shown in fig. 1 and 4, the base 2 is detachably connected with the protective cover 7, the hydraulic cylinder 5 is inserted into the protective cover 7 and fixed, the number of the protective covers 7 is not particularly limited, the hydraulic cylinder 5 is limited by the inner wall of the protective cover 7, so that the displacement of the hydraulic cylinder 5 in the process of angle adjustment of the auger body 1 is avoided, the detachable protective cover 7 is convenient for replacement of the hydraulic cylinder 5 when the hydraulic cylinder 5 is damaged, and the angle adjustment function of the auger is prevented from being affected.

As shown in fig. 1 and 4, a slot 701 is formed in the protective cover 7, the cylinder body 502 of the hydraulic cylinder 5 is installed in the slot 701, a positioning flange 702 is formed on the periphery of the protective cover 7, and the protective cover 7 is fixed to the base 2 through the positioning flange 702 in a threaded connection manner, so that the protective cover 7 can be quickly disassembled based on the quick disassembly performance of the threaded connection, and the disassembly and assembly efficiency of the hydraulic cylinder 5 is further improved.

As shown in fig. 1, 4 and 5, the base 2 is hinged with the same number of corresponding lock catches 8 as the universal wheels 3, the lock catches 8 are U-shaped, two ends of each lock catch 8 are hinged with the base 2, the wheel seat of the universal wheel 3 is provided with a clamping groove 301 for accommodating a part between two ends of each lock catch 8, the clamping groove 301 is communicated with the inside of the wheel seat, when the lock catches 8 are rotated, the part between the two ends of each lock catch 8 is inserted into the clamping groove 301 of the wheel seat of the universal wheel 3, the lock catches can abut against the gear in the wheel seat to limit the rotation of the gear, further the rotation of the universal wheel 3 is limited, locking is achieved, after the support frame is moved to a proper position of an operation site, the universal wheels 3 are locked, the support frame and the auger body 1 are prevented from moving to be separated from a selected position, and further the auger body 1 is ensured to be stable at the selected position.

As shown in fig. 1, 4 and 5, a spring is further connected between the latch 8 and the base 2, a guide groove 202 opposite to the latch 8 is formed in the base 2, a pushing member 9 is connected to the guide groove 202 in a threaded manner, one end of the pushing member 9 penetrates through the guide groove 202 to abut against the latch 8, and the latch 8 can move in a position where the latch does not depart from the abutting position with the pushing member 9.

As shown in fig. 1, 4 and 5, the pushing member 9 includes a screw portion 901 and a ram 902, the screw portion 901 is in threaded connection with the guide groove 202, the ram 902 abuts against a portion between two ends of the lock catch 8, wherein the screw portion 901 is used for an operator to control rotation through a tool.

As shown in fig. 6, the ram 902 is provided with a receiving groove 902a, one end of the screw 901 is inserted into the receiving groove 902a, the inner wall of the receiving groove 902a is provided with an annular turning groove 902b, and the screw 901 is provided with a turning block 901a inserted into the turning groove 902b, based on the above arrangement, when the screw 901 rotates, the end of the screw drives the turning block 901a to rotate in the turning groove 902b, so as to avoid the ram 902 from rotating synchronously, and further reduce the friction force between the ram 902 and the latch 8 when the screw 901 rotates, so as to ensure that the thrusting member 9 can rotate more easily, and meanwhile, the matching of the turning block 901a and the turning groove 902b can prevent the screw 901 from separating from the ram 902, and ensure that the two are always kept at the butt joint position.

With reference to fig. 1 to 6, when the position of the dragon hinge is adjusted, firstly, the lock catch 8 on the base 2 and the wheel seat of the universal wheel 3 are kept in a separated state, at this time, the universal wheel 3 is enabled to roll by pushing the base 2, so that the flexible adjustment of the positions of the support frame and the dragon hinge body 1 is achieved, after the dragon hinge is moved to a proper position, the screw 901 of the pushing member 9 is rotated by a practical tool, so that the screw drives the pressing head 902 to press downwards until the lock catch 8 is pressed into the clamping groove 301 of the wheel seat of the universal wheel 3, so as to lock the universal wheel 3, when the angle of the dragon hinge body 1 is to be adjusted, the piston of the hydraulic cylinder 5 pushes the lifting platform 4 to rotate, when the lifting platform 4 rotates, the dragon hinge body 1 is driven to rotate, so as to achieve the angle adjustment, when the piston rod 501 of the hydraulic cylinder 5 moves, the marking plate 6 is driven to synchronously move, when the lifting platform 4 rotates, the pointing mark 401 on the lifting platform 4 points to different angle scales on the marking plate 6, so as to ensure that an operator can visually and accurately observe the angle of the lifting platform 4, that the operation person can observe the specific angle data of the dragon hinge body 1.

The foregoing embodiments and description have been provided to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a can freely turn to loose and move formula hinge dragon, it include the support frame with install in hinge dragon body (1) on the support frame, its characterized in that, the support frame includes base (2), be equipped with universal wheel (3) on base (2), base (2) have first pin joint and second pin joint, hinge dragon body (1) have third pin joint point and fourth pin joint, the first pin joint point of base (2) is articulated with the third pin joint point of hinge dragon body (1), the second pin joint of base (2) is articulated through fourth pin joint of elevating platform (4) and hinge dragon body (1), just the distance of first pin joint to fourth pin joint is isometric with the distance of second pin joint to fourth pin joint, elevating platform (4) have fifth pin joint, still be equipped with pneumatic cylinder (5) on base (2), piston rod (501) of pneumatic cylinder (5) is articulated with the fifth pin joint of elevating platform (4), be equipped with piston rod (501) of pneumatic cylinder (5), scale mark board (6) are located scale mark one side of elevating platform (6).

2. The articulated dragon hinge that can freely turn to of claim 1, characterized in that, mark board (6) includes outside plate body (601) and inside plate body (602), outside plate body (601) is the semicircle form, the angle scale is located on outside plate body (601), the one end of inside plate body (602) is connected with the middle part of outside plate body (601), and its other end is fixed with piston rod (501) of pneumatic cylinder (5), and with the fifth pin joint of elevating platform (4) is relative, be equipped with on elevating platform (4) with the relative directional mark (401) of angle scale.

3. The freely steerable articulated dragon according to claim 1, wherein the base (2) is provided with a slideway (201) arranged along the length direction thereof, the outer wall of the piston rod (501) of the hydraulic cylinder (5) is provided with a sliding block (501 a), and the sliding block (501 a) is slidably connected in the slideway (201).

4. The articulated dragon of claim 1, wherein a positioning groove (501 b) is formed in a piston rod (501) of the hydraulic cylinder (5), and the piston rod (501) is hinged to a fifth hinge point of the lifting platform (4) through an inner wall of the positioning groove (501 b).

5. The articulated dragon hinge capable of freely turning according to claim 1, wherein a protective cover (7) is detachably connected to the base (2), and the hydraulic cylinder (5) is inserted into the protective cover (7) for fixation.

6. The articulated dragon of claim 5, characterized in that a slot (701) is opened in the protective cover (7), a cylinder body (502) of the hydraulic cylinder (5) is installed in the slot (701), a positioning flange (702) is formed on the outer periphery of the protective cover (7), and the protective cover is fixed to the base (2) through the positioning flange (702) in a threaded connection manner.

7. The articulated dragon hinge that can freely turn to of claim 1, characterized by, articulated on base (2) have with universal wheel (3) etc. and corresponding hasp (8), hasp (8) are the U type, and its both ends are articulated with base (1), be equipped with on the wheel seat of universal wheel (3) and be used for accomodating the draw-in groove (301) of the part between hasp (8) both ends, just draw-in groove (301) link up with the inside of universal wheel (3) wheel seat.

8. The articulated dragon capable of freely turning according to claim 7, wherein the base (2) is provided with a guide groove (202) opposite to the lock catch (8), the guide groove (202) is internally connected with a pushing member (9) in a threaded manner, one end of the pushing member (9) penetrates through the guide groove (202) to abut against the lock catch (8), a spring (10) is further connected between the lock catch (8) and the base (2), and the lock catch (8) can move in a position where the lock catch is not separated from the abutting position with the pushing member (9).

9. The articulated dragon of claim 8, wherein the thruster member (9) comprises a screw (901) and a ram (902), the screw (901) being screwed into the guide groove (202), the ram (902) abutting against the part between the two ends of the lock catch (8).

10. The freely-turnable articulated dragon of claim 9, wherein the pressing head (902) is provided with a receiving groove (902 a), one end of the screw part (901) is inserted into the receiving groove (902 a), the inner wall of the receiving groove (902 a) is provided with an annular turning groove (902 b), and the screw part (901) is provided with a turning block (901 a) inserted into the turning groove (902 b).

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