CN114754995A

CN114754995A - Trailer hardware fitting uses multi-functional detection device

Info

Publication number: CN114754995A
Application number: CN202210388225.3A
Authority: CN
Inventors: 胡崇勇
Original assignee: Tianchang Maolin Electromechanical Equipment Co ltd
Current assignee: Tianchang Maolin Electromechanical Equipment Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-15

Abstract

The invention discloses a multifunctional detection device for trailer hardware accessories, which comprises two jacking pieces I symmetrically distributed on two sides of a working surface, wherein a feeding detection table is fixed at the output ends of the jacking pieces I, a mounting column is fixed at the central position of the top surface of the feeding detection table, image acquisition cameras are mounted on the front side and the rear side of the upper end of the mounting column, a plurality of clamping holes are uniformly formed in the outer side of the top surface of the feeding detection table in an annular shape, clamping grooves are formed in the inner side walls of the clamping holes, clamping blocks are connected to the inner walls of the clamping grooves in a sliding contact mode, clamping springs are fixed between the clamping blocks and the bottom surface of the clamping groove, and balls are further roll-mounted at the other end of the clamping blocks. The device has the advantages of reasonable design, stable operation of the device, convenient and fast material change of the trailer hook, greatly improved detection efficiency of the trailer hook, no damage to the trailer hook and the device during detection of the device, and greatly reduced maintenance cost of equipment.

Description

Trailer hardware fitting uses multi-functional detection device

Technical Field

The invention relates to the technical field of trailer production auxiliary equipment, in particular to a multifunctional detection device for trailer hardware accessories.

Background

The automobile tow hook is a towing device connected to a rear anti-collision beam of a vehicle, is mainly installed on common household vehicles and self-propelled motor homes, is generally connected by threads, and needs to be subjected to quality detection before leaving a factory in order to ensure the use safety of the tow hook, so that detection equipment is required.

Through the retrieval, application number 202111251524.4's patent, disclose screw thread detection device, including the carousel, a plurality of standing grooves have evenly been seted up at the carousel top, and a plurality of standing grooves are the annular and distribute, standing groove and carousel circumference outer wall communicate with each other, many connecting rods are evenly installed at the carousel top, the synchronization disc is located the carousel top, the connecting rod top is connected with the synchronization disc bottom, it has the multiunit cylinder to be annular evenly distributed on the synchronization disc, the gear is installed to cylinder bottom expansion end, the gear is located between carousel and the synchronization disc, two tooth rows are located between carousel and the synchronization disc, and a tooth row is located the outside of a plurality of gears, another tooth row is located the inboard of a plurality of gears, two tooth row positions are crisscross, tooth row and gear engagement.

When the device is used, the detection piece is inconvenient to feed, and the detection piece which does not meet the thread requirement is easy to damage the detection piece and equipment when being continuously screwed, so that the maintenance cost of the equipment is greatly increased, and the use requirement of people is difficult to meet, so that the multifunctional detection device for the trailer hardware fitting is necessary to research.

Disclosure of Invention

The invention aims to solve the problems of labor consumption and low efficiency in the prior art, and provides a multifunctional detection device for trailer hardware fittings.

In order to achieve the purpose, the invention adopts the following technical scheme:

a multifunctional detection device for trailer hardware accessories comprises two jacking pieces I which are symmetrically distributed on two sides of a working face, wherein the output ends of the jacking pieces I are fixed with a feeding detection table, a mounting column is fixed at the center position of the top surface of the feeding detection table, image acquisition cameras are mounted on the front side and the rear side of the upper end of the mounting column, a plurality of clamping holes are uniformly formed in the outer side of the top surface of the feeding detection table in an annular shape, clamping grooves are formed in the inner side walls of the clamping holes, clamping blocks are connected with the inner walls of the clamping grooves in a sliding contact manner, clamping springs are fixed between the clamping blocks and the bottom surface of the clamping grooves, balls are further mounted at the other ends of the clamping blocks in a rolling manner, a jacking piece II is further arranged between the two jacking pieces I, a threaded detection seat is fixed at the output end of each jacking piece II, a detection seat is formed in the epitaxial position of the top surface of the threaded detection seat, detection holes are formed in the inner wall of each detection hole in a sliding connection manner, a detection column is fixed on the outer wall of the lower side of the detection column, the outer wall of the upper side of the detection hole is further provided with a limiting groove, the limiting block is connected in the limiting groove in a sliding manner, the top surface of the detection column is also provided with a thread detection hole matched with a hook of a trailer to be detected, the bottom surface of the detection column is also fixed with a hanging ring, the inner bottom surface of the detection hole is also fixed with an elastic pull rope, the upper side of the elastic pull rope is fixedly connected with the hook, the hook is hung on the hanging ring, the inner wall of the lower side of the detection hole is also fixed with a mounting plate, the middle part of the bottom surface of the detection column is also fixed with a cylindrical rod, the outer side of the lower end of the cylindrical rod is provided with threads and is fixed with grouting, the middle part of the bottom surface of the mounting plate is also provided with a control switch, the outer end surface of the thread detection seat is also provided with an indicator lamp, the middle part of the top surface of the mounting plate is also provided with a slot matched with the grouting, the back side of the jacking piece is also provided with a reciprocating drive box, the output end of the reciprocating drive box is fixed with a rotating rod, the front side of the rotating rod is fixed with two hanging rods, the peg deviates from bull stick one end and all welds the dead lever, and the dead lever lower extreme is fixed with and is used for driving the trailer couple to select pivoted detection complementary unit, the bull stick rear side still is fixed with the balance roll.

Preferably, detect complementary unit and include the link plate, the equal fixed connection of dead lever lower extreme is in the epitaxial position of link plate top surface, link plate top surface middle part has servo motor through the fix with screw, and the epitaxial position of link plate bottom surface still rotates and is connected with the swing arm, rotates between servo motor output and the swing arm and is connected with the gear train, the swing arm bottom all is fixed with trailer couple centre gripping subassembly, the quantity in quantity and the block hole of swing arm is unanimous, and a plurality of swing arms are cyclic annular evenly distributed in the epitaxial position of link plate bottom surface.

Preferably, the hook clamping assembly comprises a rectangular mounting block, a rectangular groove is formed in the bottom surface of the rectangular mounting block, cylindrical holes are formed in the inner walls of the two sides of the rectangular groove, cylindrical blocks are connected to the inner walls of the cylindrical holes in a sliding manner, a clamping plate is fixedly connected to one end of each cylindrical block, an extrusion spring is fixed between each cylindrical block and the inner bottom surface of each cylindrical hole, a clamping groove is formed in the middle of the top surface of the rectangular groove, inserting grooves are formed in the two sides of the lower end of each clamping groove, inserting rods are connected to the inner walls of the inserting grooves in a sliding manner, blocking pieces are fixed to the outer sides of one ends of the inserting rods, locking springs are fixedly connected between the blocking pieces and the inserting grooves, pull ropes are fixed to one end of each inserting rod, penetrate out of one side of the rectangular mounting block, pulling handles are fixed to the ends of the pull ropes, guide rollers are mounted at the corners of the pull ropes, the cylindrical blocks are uniformly distributed on the inner walls of the two sides of the rectangular groove, circular arc transition sections are arranged on the sides of the lower ends of the inserting rods and the clamping plates, close to the center of the rectangular mounting block, the two inserted rods are meshed to realize temporary fixation.

Preferably, the alignment line is all carved with in block hole upper end both sides, and the rectangular channel all sets up the position directly over the alignment line when the material loading, and the quantity in inspection hole is unanimous with the quantity in block hole, and a plurality of inspection holes are cyclic annular evenly distributed and detect the epitaxial position of seat top surface at the screw thread.

Preferably, the plurality of clamping grooves are distributed on the inner side wall of the clamping hole in two rows, and each row of clamping grooves are uniformly distributed on the inner side wall of the clamping hole in an annular shape.

Preferably, the elastic pull ropes and the hanging rings are arranged in a plurality of annular and uniformly distributed on the inner bottom surface of the detection hole and the bottom surface of the detection column, and the elastic pull ropes are connected with the mounting plate through sliding gaps.

Preferably, the dead lever is equipped with a plurality ofly and is cyclic annular evenly distributed on peg one side bottom surface, and the acute angle that presss from both sides between two pegs is the degree, two the material loading is examined the triangle-shaped that platform and screw thread detection seat central point are connected and is isosceles triangle-shaped, and isosceles triangle's interior apex angle is the degree.

Compared with the prior art, the invention provides a multifunctional detection device for trailer hardware fittings, which has the following beneficial effects:

1. the device has the advantages that the design is reasonable, the device runs stably, the trailer hook is convenient to change, the detection efficiency of the trailer hook is greatly improved, the trailer hook and the device cannot be damaged during detection, and the maintenance cost of equipment is greatly reduced;

2. According to the invention, when in detection, the trailer hook is arranged in the trailer hook clamping component, the second jacking piece drives the thread detection seat to move upwards to enable the trailer hook to fall in the thread detection hole, the servo motor works to drive the plurality of rotary rods to synchronously rotate through the gear set, the trailer hook rotates to be matched with the detection hole when rotating, the trailer hook meeting the requirement pulls up the detection column, after a certain position is pulled, grouting touches the control switch at the moment, the control switch controls the indicator lamp to light, the trailer hook not meeting the requirement cannot pull up the detection column, and the trailer hook can be judged to meet the requirement by judging whether the indicator lamp lights up or not, so that the detection is convenient and fast, the reliability is high, the high-efficiency detection of the trailer hook is ensured, and the detection quality of the trailer hook can be well ensured;

3. according to the invention, whether the thread meets the required standard is realized by pulling up the detection column, the trailer hook only rotates in situ when the thread does not meet the requirement, and meanwhile, the detection column on the lower side of the trailer hook which does not meet the requirement is kept still, so that the trailer hook and the device which do not meet the requirement cannot be worn, the service life of the device is greatly prolonged, and the maintenance cost of the device is reduced;

4. According to the invention, a plurality of trailer hooks are sequentially clamped in the clamping holes during loading, the orientation of the hook of the trailer hook is ensured to be consistent with the orientation of the alignment line, the loading detection platform is driven by the first jacking piece during unloading to move upwards so that the trailer hook is inserted into the trailer hook clamping component to realize temporary fixation, and the trailer hook is pulled down after fixation, and then leaves the clamping holes, so that the rapid loading operation of the trailer hook is realized, and a certain guarantee is provided for the efficient loading of the trailer hook;

5. when the trailer hook is detected, the hanging handle of the trailer hook is inserted into the rectangular groove, the upper side of the trailer hook is locked by the two inserting rods, the two clamping plates on the lower side realize temporary clamping limiting, and the stability of the trailer hook is well ensured, so that a certain guarantee is provided for stably screwing the trailer hook into the thread detection hole;

6. according to the invention, when the trailer hook is used for blanking, the pulling handle is pulled, and the pull rope pulls the two insertion rods to move back, so that people can finish the unloading operation of the trailer hook by pulling the trailer hook downwards, the operation is simple and convenient, and a certain guarantee is provided for continuous loading and detection of the trailer hook.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a view of the top view of the feeding inspection table of the present invention;

FIG. 4 is an enlarged view of the invention at A in FIG. 1;

FIG. 5 is a plan view of the mounting plate of the present invention;

FIG. 6 is a plan view of the grouting of the present invention;

FIG. 7 is a plan view of the detection assist mechanism of the present invention;

figure 8 is a schematic front view of the trailer hitch clamp assembly of the present invention.

In the figure: the device comprises a first jacking piece 1, a loading detection table 2, a mounting column 3, an image acquisition camera 4, a clamping hole 5, a clamping block 6, a clamping spring 7, a ball 8, an approval line 9, a second jacking piece 10, a thread detection seat 11, a detection column 12, a limiting block 13, a thread detection hole 14, a hanging ring 15, an elastic pull rope 16, a mounting plate 17, a cylindrical rod 18, a mud jacking 19, a control switch 20, an indicator light 21, a slot 22, a reciprocating drive box 23, a rotating rod 24, a hanging rod 25, a fixed rod 26, a detection auxiliary mechanism 27, a balance roller 28, a hanging plate 271, a servo motor 272, a rotating rod 273, a gear set 274, a trailer hook clamping component 275, a rectangular mounting block 2751, a cylindrical block 2752, a clamping plate 2753, an extrusion spring 2754, an insertion rod 2755, a blocking piece 2756, a locking spring 2757, a pull rope 2758, a pulling handle 2759 and a guide roller 27510.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example one

Referring to fig. 1-6, a multifunctional detection device for trailer hardware fittings comprises two jacking pieces 1 symmetrically distributed on two sides of a working face, wherein output ends of the jacking pieces 1 are fixed with a feeding detection table 2, a mounting column 3 is fixed at the central position of the top surface of the feeding detection table 2, image acquisition cameras 4 are mounted on the front side and the rear side of the upper end of the mounting column 3, a plurality of clamping holes 5 are uniformly formed in the outer side of the top surface of the feeding detection table 2 in an annular shape, clamping grooves are formed in the inner side walls of the clamping holes 5, a plurality of clamping springs 7 are arranged between the clamping grooves and distributed on the inner side walls of the clamping holes 5 in two rows, each row of clamping grooves are uniformly distributed on the inner side walls of the clamping holes 5 in an annular shape, the inner walls of the clamping grooves are connected with clamping blocks 6 in sliding contact, clamping springs 7 are fixed between the clamping blocks 6 and the bottom surfaces of the clamping grooves, so that the trailer hook is temporarily and stably clamped, balls 8 are further installed on the other end of the clamping blocks 6 in a rolling manner, a second jacking piece 10 is further arranged between the first jacking pieces 1, a thread detection seat 11 is fixed at the output end of the second jacking piece 10, detection holes are formed in the extending position of the top surface of the thread detection seat 11, the number of the detection holes is consistent with that of the clamping holes 5, a plurality of detection holes are annularly and uniformly distributed in the extending position of the top surface of the thread detection seat 11, the inner walls of the detection holes are respectively and slidably connected with a detection column 12, a limiting block 13 is fixed on the outer wall of the lower side of the detection column 12, a limiting groove is further formed in the outer wall of the upper side of the detection hole, the limiting block 13 is respectively and slidably connected in the limiting groove, a thread detection hole 14 matched with a hook of a trailer to be detected is further tapped on the top surface of the detection column 12, a hanging ring 15 is further fixed on the bottom surface of the detection column 12, an elastic pull rope 16 is further fixed on the inner bottom surface of the detection hole, a hook is fixedly connected with the upper side of the elastic pull rope 16, the hook is hung on the hanging ring 15, and a mounting plate 17 is further fixed on the inner wall of the lower side of the detection hole, a cylindrical rod 18 is further fixed at the middle of the bottom surface of the detection column 12, threads are tapped on the outer side of the lower end of the cylindrical rod 18 and are fixed with a grouting 19, a control switch 20 can be touched by adjusting the position of the grouting 19, a control switch 20 is further mounted at the middle of the bottom surface of the mounting plate 17, an indicator lamp 21 is further mounted on the outer end face of the thread detection seat 11, a slot 22 which is matched with the grouting 19 is further formed in the middle of the top surface of the mounting plate 17, a reciprocating driving box 23 is further arranged on the rear side of the second jacking piece 10, a rotating rod 24 is fixed at the output end of the reciprocating driving box 23, two hanging rods 25 are fixed on the front side of the rotating rod 24, a fixing rod 26 is welded at one end of each hanging rod 25, which is far away from the rotating rod 24, a detection auxiliary mechanism 27 for driving the trailer hook to rotate selectively is fixed at the lower end of the fixing rod 26, a balance roller 28 is further fixed on the rear side of the rotating rod 24, and the trailer hook 275 is arranged in the trailer hook clamping assembly during detection, two 10 drive screw thread detection seats of jacking piece this moment move up and make the trailer couple fall on screw thread detection hole 14 in, it drives the trailer couple rotation to detect complementary unit 27 this moment, trailer couple rotates and the cooperation of detection hole 14 during the rotation, the trailer couple that meets the requirements this moment will detect post 12 and be pulled up, after pulling a locating position, 19 contact pressure control switch 20 of mudjacking this moment, control switch 20 control pilot lamp 21 lights, the trailer couple that does not meet the requirements can not be with detecting post 12 and pull up, judge whether the trailer couple meets the requirements through judging that pilot lamp 21 lights, it detects conveniently, high reliability, thereby guarantee that the trailer couple detects that can also be fine when guaranteeing the high-efficient detection of trailer couple.

Example two

As shown in fig. 1, 2 and 7, this embodiment is substantially the same as embodiment 1, preferably, the detection assisting mechanism 27 includes a hanging plate 271, the lower end of the fixing rod 26 is fixedly connected to the extending position of the top surface of the hanging plate 271, a servo motor 272 is fixed to the middle of the top surface of the hanging plate 271 through a screw, a rotating rod 273 is further rotatably connected to the extending position of the bottom surface of the hanging plate 271, a gear set 274 is rotatably connected between the output end of the servo motor 272 and the rotating rod 273, a trailer hook clamping assembly 275 is fixed to the bottom end of the rotating rod 273, the number of the rotating rods 273 is the same as that of the clamping holes 5, and the plurality of rotating rods 273 are uniformly distributed on the extending position of the bottom surface of the hanging plate 271 in an annular manner.

In this embodiment, when in use, the servo motor 272 works, and the gear set 274 drives the plurality of rotating rods 273 to synchronously rotate, so that the synchronous detection operation of a plurality of trailer hooks is realized, and the detection efficiency of the trailer hooks is greatly improved.

EXAMPLE III

As shown in fig. 1, 2 and 7, in this embodiment, the same as that in embodiment 1, preferably, the hook clamping assembly 275 includes a rectangular mounting block 2751, a rectangular groove is formed in a bottom surface of the rectangular mounting block 2751, cylindrical holes are formed in inner walls of both sides of the rectangular groove, cylindrical blocks 2752 are slidably connected to inner walls of the cylindrical holes, a clamping plate 2753 is fixedly connected to one end of each cylindrical block 2752, an extrusion spring 2754 is further fixed between each cylindrical block 2752 and an inner bottom surface of each cylindrical hole, a clamping groove is further formed in a middle portion of an inner top surface of the rectangular groove, insertion grooves are further formed in both sides of a lower end of each clamping groove, insertion grooves are slidably connected to inner walls of each insertion groove 2755, a blocking piece 2756 is further fixed to an outer side of one end of each insertion rod 2755, a locking spring 2757 is fixedly connected between each blocking piece 2756 and each insertion groove, a pulling rope 2758 is further fixed to one end of each insertion rod 2755, the pulling ropes 2758 penetrate through one side of the rectangular mounting block 2751 and a handle 2759 is fixed to an end of each pulling rod 2759, each guiding roller 27510 is mounted on each of each pulling rod 2758, the cylindrical blocks 2752 are provided with a plurality of cylindrical blocks which are evenly distributed on the inner walls of the two sides of the rectangular groove, arc transition sections are arranged on one sides, close to the center of the rectangular mounting block 2751, of the lower ends of the inserting rods 2755 and the clamping plate 2753, and the two inserting rods 2755 are meshed to achieve temporary fixing.

In this embodiment, when examining, insert in the rectangular channel through the handle of hanging with the trailer couple, the trailer couple upside is locked by two inserted bars 2755 this moment, two grip blocks 2753 of downside realize that the centre gripping is interim spacing, fine assurance trailer couple's stability, thereby for the trailer couple stable screw in screw thread inspection hole 14 in provide certain guarantee, when the unloading of trailer couple, through pulling handle 2759, two inserted bars 2755 of stay cord 2758 pulling move back this moment, people extract the trailer couple downwards and can accomplish the operation of unloading of accomplishing the trailer couple, and is simple and convenient to operate, and then provide certain guarantee for the continuous material loading and the detection of trailer couple.

Example four

As shown in fig. 1 to 3, in this embodiment, basically the same as embodiment 1, preferably, alignment lines 9 are engraved on both sides of the upper end of the engaging hole 5, and the rectangular grooves are both disposed at positions right above the alignment lines 9 during loading.

In this embodiment, through linking in proper order the joint in block hole 5 with many trailer couples during the material loading, guarantee this moment that the couple orientation of trailer couple is unanimous with the orientation of approving line 9, unloading through jacking piece 1 drive material loading examine test table 2 and shift up make the trailer couple insert and realize interim fixing in trailer couple clamping component 275, fixed back drop-down, the trailer couple leaves block hole 5 this moment, thereby realize the quick material loading operation of trailer couple, and then provide certain guarantee for the high-efficient material loading of trailer couple.

EXAMPLE five

As shown in fig. 4 and 5, this embodiment is substantially the same as embodiment 1, and preferably, the elastic pulling rope 16 and the hanging ring 15 are provided in a plurality and uniformly distributed in a ring shape on the inner bottom surface of the detection hole and the bottom surface of the detection column 12, and the elastic pulling rope 16 is connected with the mounting plate 17 through a sliding gap.

In this embodiment, a plurality of elastic pull ropes 16 are provided, so as to ensure the stability of the downward movement of the detection column 12 after detection.

Example six

As shown in fig. 1 and 2, in this embodiment, substantially the same as embodiment 1, preferably, the fixing rod 26 is provided with a plurality of fixing rods and is uniformly distributed on the bottom surface of one side of the hanging rod 25 in a ring shape, an acute angle included between the two hanging rods 25 is 50 degrees, a triangle connecting the two feeding detection tables 2 and the central point of the thread detection seat 11 is an isosceles triangle, and an inner vertex angle of the isosceles triangle is 130 degrees.

In this embodiment, through setting up two peg 25 angles and two the material loading is examined test table 2 and is examined 11 distribution positions of screw thread and coincide each other to realize the material loading and detect and go on in step, and then improved the efficiency of the detection of trailer couple greatly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a trailer is multi-functional detection device for hardware fitting, includes two jacking piece one (1) of symmetric distribution in the working face both sides, and jacking piece one (1) output all is fixed with material loading and examines test table (2), its characterized in that, material loading examines test table (2) top surface central point and puts and be fixed with erection column (3), and image acquisition camera (4) are all installed to the front and back side of erection column (3) upper end, and the material loading examines the test table (2) top surface outside and has evenly seted up a plurality of block holes (5) of cyclic annular, and the block groove has all been seted up to block hole (5) inside wall, and the block inslot wall all sliding contact is connected with the card fixed piece (6), all is fixed with card spring (7) between card fixed piece (6) and the card inslot bottom surface, and the other end of card fixed piece (6) is still rolled and is installed ball (8);

two jacking pieces II (10) are further arranged between the jacking pieces I (1), the output ends of the jacking pieces II (10) are fixedly provided with screw thread detection seats (11), detection holes are formed in the epitaxial positions of the top surfaces of the screw thread detection seats (11), detection columns (12) are connected to the inner walls of the detection holes in a sliding mode, limiting blocks (13) are fixed to the outer walls of the lower sides of the detection columns (12), limiting grooves are further formed in the outer walls of the upper sides of the detection holes, the limiting blocks (13) are connected to the limiting grooves in a sliding mode, screw thread detection holes (14) matched with hooks of trailers to be detected are further arranged on the top surfaces of the detection columns (12), hanging rings (15) are further fixed to the bottom surfaces of the detection columns (12), elastic pull ropes (16) are further fixed to the inner bottom surfaces of the detection holes, hooks are fixedly connected to the upper sides of the elastic pull ropes (16) and hung on the hanging rings (15), mounting plates (17) are further fixed to the inner walls of the lower sides of the detection holes, a cylindrical rod (18) is further fixed in the middle of the bottom surface of the detection column (12), threads are tapped on the outer side of the lower end of the cylindrical rod (18) and a mud jacking (19) is fixed on the outer side of the lower end of the cylindrical rod, a control switch (20) is further mounted in the middle of the bottom surface of the mounting plate (17), an indicator lamp (21) is further mounted on the outer end face of the thread detection seat (11), and a slot (22) which is matched with the mud jacking (19) is further formed in the middle of the top surface of the mounting plate (17);

Jacking piece two (10) rear side still is provided with reciprocal drive case (23), and reciprocal drive case (23) output end is fixed with bull stick (24), and bull stick (24) front side is fixed with two peg (25), and peg (25) deviate from bull stick (24) one end and have all welded dead lever (26), and dead lever (26) lower extreme is fixed with and is used for driving trailer couple to select pivoted detection complementary unit (27), bull stick (24) rear side still is fixed with balance roll (28).

2. The multifunctional detection device for the trailer hardware accessories is characterized in that the detection auxiliary mechanism (27) comprises a hanging plate (271), the lower ends of fixing rods (26) are fixedly connected to the extending position of the top surface of the hanging plate (271), a servo motor (272) is fixed to the middle of the top surface of the hanging plate (271) through screws, a rotating rod (273) is further rotatably connected to the extending position of the bottom surface of the hanging plate (271), a gear set (274) is rotatably connected between the output end of the servo motor (272) and the rotating rod (273), and a trailer hook clamping assembly (275) is fixed to the bottom end of the rotating rod (273).

3. The multifunctional detection device for the trailer hardware fittings as claimed in claim 2, wherein the number of the rotating rods (273) is consistent with the number of the clamping holes (5), and the plurality of rotating rods (273) are uniformly distributed on the extension positions of the bottom surface of the hanging plate (271) in an annular shape.

4. The multifunctional detection device for the trailer hardware fittings as claimed in claim 1, wherein the hook clamping assembly (275) comprises a rectangular mounting block (2751), a rectangular groove is formed in the bottom surface of the rectangular mounting block (2751), cylindrical holes are formed in inner walls of two sides of the rectangular groove, the cylindrical block (2752) is slidably connected to inner walls of the cylindrical holes, a clamping plate (2753) is fixedly connected to one end of the cylindrical block (2752), an extrusion spring (2754) is fixed between the cylindrical block (2752) and the inner bottom surface of the cylindrical hole, a clamping groove is formed in the middle of the inner top surface of the rectangular groove, splicing grooves are formed in two sides of the lower end of each clamping groove, insertion rods (2755) are slidably connected to inner walls of the splicing grooves, blocking pieces (2756) are fixed to the outer side of one end of each insertion rod (2755), locking springs (2757) are fixedly connected between each blocking piece (2756) and each splicing groove, pull ropes (2758) are fixed to one end of each insertion rod (2755), the pull rope (2758) penetrates through one side of the rectangular mounting block (2751), and a pull handle (2759) is fixed at the end part of the pull rope.

5. The multifunctional detection device for the trailer hardware fittings as claimed in claim 4, characterized in that, guide rollers (27510) are installed at the corners of the pull rope (2758), and a plurality of cylindrical blocks (2752) are arranged and evenly distributed on the inner walls of two sides of the rectangular groove.

6. The multifunctional detection device for the trailer hardware fittings as claimed in claim 4 or 5, wherein arc transition sections are arranged on one sides of the lower ends of the insertion rods (2755) and the clamping plates (2753) close to the center of the rectangular mounting block (2751), and the two insertion rods (2755) are engaged to realize temporary fixation.

7. The multifunctional detection device for the trailer hardware fittings as claimed in claim 4, wherein the alignment lines (9) are carved on both sides of the upper end of the engagement holes (5), the rectangular grooves are arranged at positions right above the alignment lines (9) during loading, the number of the detection holes is consistent with that of the engagement holes (5), and the detection holes are annularly and uniformly distributed at the extended positions on the top surface of the thread detection seat (11).

8. The multifunctional detection device for the trailer hardware fittings as claimed in claim 1 or 2, wherein the clamping grooves are provided with a plurality of clamping grooves which are distributed on the inner side wall of the clamping hole (5) in two rows, and each row of the clamping grooves are uniformly distributed on the inner side wall of the clamping hole (5) in an annular shape.

9. The multifunctional detection device for the trailer hardware fittings as claimed in claim 1 or 3, wherein the elastic pulling ropes (16) and the hanging rings (15) are uniformly distributed on the inner bottom surface of the detection holes and the bottom surface of the detection column (12) in an annular shape, and the elastic pulling ropes (16) are connected with the mounting plate (17) in a sliding clearance manner.

10. The multifunctional detection device for the trailer hardware accessories is characterized in that the fixing rod (26) is provided with a plurality of fixing rods which are uniformly distributed on the bottom surface of one side of the hanging rod (25) in an annular mode, an included acute angle between the two hanging rods (25) is 50 degrees, two triangles, connected by the central points of the feeding detection table (2) and the thread detection seat (11), are isosceles triangles, and the inner vertex angle of each isosceles triangle is 130 degrees.