CN117657603A - Lock catch for turnover box - Google Patents

Abstract

The invention belongs to the technical field of locks, and relates to a lock catch for a turnover box, which comprises an upper lock catch, a lower lock catch, a bolt, a seal and a plug, wherein the upper lock catch clamps an upper cover plate of the turnover box through an upper buckle plate and a base, the lower lock catch clamps a front side plate of the turnover box through a lock body and a lower buckle plate, the seal is adhered to a seal bottom plate of the bolt, a lock tongue of the lower lock catch is inserted into a porous body of the upper lock catch, after the front side of a pin body of the bolt is inserted upwards, a pin boss at the front end of the pin body is in inserted fit with a blocking part of the base, the plug is fixed on the lower lock catch through a sliding head, if the turnover box is opened, the pin body of the bolt is required to be pulled out first, a positioning piece arranged in the base is required to be separated from the seal bottom plate, and whether the turnover box is stolen or not can be judged in the transportation process through a transparent circular plate of the upper lock catch, so that the technical problem that the turnover box cannot be disassembled in the transportation process at present is solved.

Description

Lock catch for turnover box

Technical Field

The invention belongs to the technical field of locks, and relates to a lock catch for a turnover box.

Background

At present, the problems encountered by the lock catches commonly used for the turnover box in the market are: one is to use adhesive tape to tightly bind the turnover box, which causes resource waste and is not environment-friendly; the other is that the disposable lead seal, the plastic buckle and the like are used, and the anti-theft and anti-disassembly functions are not provided, so that the safety is not enough.

Disclosure of Invention

The invention aims at overcoming the defects of the prior art, and provides a lock catch for a turnover box, so as to solve the technical problems that the prior art causes resource waste in the transportation process of the turnover box, is not environment-friendly or cannot be prevented from being disassembled by stealth.

In order to achieve the aim, the lock catch for the turnover box is realized through the following technical scheme, and is characterized in that the lock catch comprises an upper lock catch arranged on an upper cover plate of the turnover box, a lower lock catch arranged on a front side plate of the turnover box, plugs arranged on two sides of the front side plate of the lower lock catch, and bolts and seal labels;

the upper lock catch comprises: the upper buckle plate positioned on the outer side of the upper cover plate of the turnover box and the base positioned on the inner side of the upper cover plate are provided with first round holes, the periphery of the inner side of each first round hole is provided with a containing groove, a transparent circular plate is arranged in each first round hole, the lower end of each transparent circular plate is provided with a clamping part in plug-in fit with the corresponding containing groove, the surface of the upper buckle plate, which faces the upper cover plate, is provided with a hole column and an upper clamping hook, the surface of the base, which faces the upper cover plate, is provided with second round holes and holes, the second round holes correspond to the first round holes, the holes correspond to the hole column, the two sides of the base are provided with side plates, the side plates are provided with upper clamping grooves corresponding to the upper clamping hooks, the upper cover plate is provided with first through holes, second through holes and upper through grooves, the first perforation corresponds to the first round hole or the second round hole, the second perforation corresponds to a hole column or a hole, the upper through groove corresponds to the upper clamping hook or the upper clamping groove, the hole column penetrates through the second perforation and then is inserted into the hole, the upper clamping hook penetrates through the upper through groove and is inserted into the upper clamping groove to enable the upper clamping plate and the base to be overlapped into a whole and clamp the upper cover plate, a porous body is arranged at the rear end of the base, a first through hole is formed in the horizontal direction of the porous body, a bolt jack is formed in the vertical direction of the porous body, the first through hole is vertically communicated with the bolt jack, the base is a hollow cuboid, guide rails and blocking parts are arranged on two sides of the inner wall of the base, the rear end of the guide rails is fixedly connected with elastic pieces, the blocking parts are positioned in front of the guide rails, and positioning pieces are arranged on the inner sides of the bottom surface of the base;

the lower lock catch comprises: the lock body comprises a lock tongue at the upper end and a lock hip at the lower end, the lock tongue is in plug-in fit with a lock tongue jack, a second through hole is formed in the lock tongue, a groove is formed in the lock hip, sliding grooves are formed in two sides of the lock hip, a lower clamping hook is arranged on the back surface of the lock hip, a lower clamping groove corresponding to the lower clamping hook is formed in the lower clamping plate, a lower through groove is formed in the front side plate, the lower through groove corresponds to the lower clamping hook or the lower clamping groove, and the lower clamping hook penetrates through the lower through groove to be in plug-in connection with the lower clamping groove of the lower clamping plate so that the lock body and the lower clamping plate are integrated and clamp the front side plate;

the bolt includes: the pin body is vertically and fixedly connected with the pin handle, a seal bottom plate is arranged on the front face of the pin body, pin body grooves are formed in the middle of the pin body, the seal bottom plate is positioned on two sides of the pin body grooves, the pin body grooves are in plug-in fit with positioning pieces on the inner side of the bottom face of the base, pin heads are arranged on two sides of the front end of the pin body, pin bosses are arranged at the front end of the pin head, and bolt sleeves are arranged at the lower ends of two sides of the pin handle;

the seal is stuck on the seal bottom plate, a point cutting line is arranged at the center line of the seal, and the point cutting line is overlapped with the center line of the pin body groove;

the plug comprises: the sliding block is provided with a sliding head on one side, the lower end of the sliding block is provided with a sliding hook, the sliding hook is matched with a sliding groove in an inserting mode, the sliding block is arranged on two sides of the front side of a lock hip in an inserting mode through the sliding hook and the sliding groove in an inserting mode, the sliding head is matched with a bolt sleeve in an inserting mode, a bolt can be inserted into a bolt jack, a pin body is sequentially inserted into a first through hole, a second through hole and a base in the right side upwards, and when the pin body is pulled out of the base, a positioning piece divides a seal pasted on a seal bottom plate along a point cutting line.

Further, the upper end of the blocking part is tightly attached to the inner side of the top surface of the base, the lower end of the blocking part is kept horizontal with the lower end of the guide rail, and the blocking part is in convex plug-in fit with a pin arranged on the pin head.

Further, when the pin body is completely inserted into the base, the first round hole, the first perforation, the second round hole and the seal bottom plate are overlapped up and down.

Further, the locking process of the lock catch of the invention is as follows: when the upper cover plate of the turnover box is folded towards the inner direction of the box, a lock tongue positioned at the outer side of the front side plate of the turnover box is inserted into a lock tongue jack of a porous body to form preliminary insertion fit, then the front side of a pin body of a bolt is sequentially inserted into a first through hole, a second through hole and a base, when the two sides of a pin boss at the front end of the pin body slide to the front end of a guide rail and touch a blocking part, the pin boss is pressed backwards in the middle to narrow a gap at the front end of a pin groove, the pin boss slides to the blocking part to recover to an original state and then falls to the bottom surface of the base, the pin body is clung to the bottom surface of the base, at the moment, a pin handle is clung to a groove of a lower lock catch, a positioning piece is positioned in a pin body groove between the pin handle and a seal bottom plate, and finally, a sliding head arranged on the plug is inserted into a bolt sleeve from two sides, so that final locking of the turnover box is completed.

Further, the opening process of the lock catch of the invention is as follows: when the turnover box needs to be opened, sliding heads on two sides are outwards pulled out from the bolt sleeve, if a pin boss arranged on the pin body moves upwards, the pin body is about to withdraw the base from the upper part of the guide rail, and when the pin boss touches the blocking part, the blocking part blocks the pin boss from sliding, and the pin body cannot be withdrawn from the base; if the pin body directly and horizontally withdraws out of the base, when the seal stuck on the seal bottom plate passes through the locating plate fixed on the inner side of the bottom surface of the base, the locating plate divides the seal along the point cutting line until the pin body is completely separated from the base, the lock tongue of the lower lock catch is separated from the lock tongue jack of the porous body, and the upper cover plate of the turnover box can be opened.

The invention has the advantages that: compared with the prior art, the lock catch provided by the invention can be used for observing whether the seal stuck on the seal bottom plate is complete or not through the transparent circular plate arranged on the upper buckle plate, if the seal is complete, the turnover box is safe in the transportation process, and if the seal is damaged, the turnover box is possibly disassembled in the transportation process, so that the purpose of preventing the disassembly is achieved, and the use safety of the turnover box is improved; the invention has the characteristics of simple structure, convenient use, high safety and the like; in addition, the lock disclosed by the invention can be recycled except for the seal, and has the characteristics of resource saving and environmental protection.

For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.

Drawings

FIG. 1 is a schematic perspective view of a latch in a closed state;

FIG. 2 is an exploded view of the latch;

FIG. 3 is an exploded view of the upper shackle A;

FIG. 4 is an exploded view of the lower shackle B;

FIG. 5 is a perspective schematic view of the upper shackle A and lower shackle B in a docked position;

fig. 6 is a schematic structural view (front face) of the plug pin C;

fig. 7 is a schematic view (back) of the structure of the plug pin C;

FIG. 8 is a schematic view of the structure of a seal D;

fig. 9 is a schematic structural view of the plug E;

FIG. 10 is a schematic view of the latch in a closed condition without the catch plate;

FIG. 11 is a schematic view of the latch in a closed position with the latch covered with the latch;

FIG. 12 is a schematic view of the latch in position with the upper lid of the transfer case fully open;

FIG. 13 is a schematic view of the latch in a partially opened position with the upper lid of the transfer case;

FIG. 14 is a schematic diagram of an embodiment;

reference numerals illustrate:

101. the upper buckle, 102, base, 103, first round hole, 104, holding groove, 105, transparent round plate, 106, clamping part, 107, hole column, 108, upper hook, 109, second round hole, 110, hole, 111, side plate, 112, upper clamping groove, 113, first through hole, 114, second through hole, 115, upper through groove, 116, porous body, 117, first through hole, 118, dead bolt jack, 119, guide rail, 120, blocking part, 121, elastic piece, 122, positioning piece, 201, lock body, 202, lower buckle, 203, dead bolt, 204, lock hip, 205, second through hole, 206, groove, 207, chute, 208, lower hook, 209, lower clamping groove, 210, lower through groove, 301, pin body, 302, pin shank, 303, seal bottom plate, 304, pin body groove, 305, pin head, 306, pin boss, 307, plug bush, 401, point cut-off line, 501, slider, 502, slider, 503, slide hook, A, upper buckle, B, C, D, E, and E

Detailed Description

In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is obvious that the described embodiments are only one embodiment of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, shall fall within the scope of the invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; referred to as being "fixed," "mounted" to another element, it can be directly on the other element or intervening elements may also be present; the terms upper, lower, front, rear, end, top, front, back, top, bottom, front, inner, outer, head, tail, etc. as referred to or possible in this specification are defined with respect to their structure and are relative terms, and thus may vary accordingly depending on the location or state of use, and therefore should not be construed as limiting terms, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-14, the present invention provides a lock catch for a turnover box, comprising an upper lock catch a, a lower lock catch B, a bolt C, a seal D and a plug E. When the upper cover plate of the turnover box is turned over towards the inner direction of the box, the lock tongue 203 positioned on the lower lock catch B is inserted into the lock tongue insertion hole 118 of the upper lock catch A, then the front surface of the pin body 301 of the plug C is inserted into the first through hole 117, the second through hole 205 and the base 102, the pin boss 306 at the front end of the pin body 301 slides to the front end of the guide rail 119 and passes over the blocking part 120 to fall down to the bottom surface of the base 102, the pin body 301 clings to the bottom surface of the base 102, finally, the positioning piece 122 is positioned between the pin handle 302 and the pin body groove 304 between the seal bottom plate 303, the seal bottom plate 303 is positioned under the first circular hole 103, the first through hole 113 and the second circular hole 109, and the slider 502 of the plug E is inserted into the bolt sleeve 307 arranged at the lower ends at the two sides of the pin handle 302, so that the final locking of the turnover box is completed. When the turnover box needs to be opened, the sliding heads 502 on two sides are outwards pulled out from the bolt sleeves 307, the pin body 301 of the bolt C is directly pulled out of the base 102 horizontally, when the seal D stuck on the seal bottom plate 303 passes through the positioning sheet 122 fixed on the inner side of the bottom surface of the base 102, the positioning sheet 122 divides the seal D along the point cutting line 401 until the pin body 301 is completely separated from the base 102, the lock tongue 203 of the lower lock catch B is separated from the lock tongue jack 118 of the upper lock catch A, and the upper cover plate of the turnover box can be opened. The integrity of the seal D stuck on the seal bottom plate 303 is checked through the transparent circular plate 105 arranged on the upper buckle plate 101, so that whether the turnover box is disassembled or not can be judged, and the technical problem that the turnover box cannot be disassembled in the transportation process in the current market is solved.

Further, the upper shackle a includes: the upper buckle plate 101 positioned on the outer side of the upper cover plate of the turnover box and the base 102 positioned on the inner side of the upper cover plate are provided with a first round hole 103, a containing groove 104 is formed in the periphery of the inner side of the first round hole 103, the containing groove 104 is annular, the thickness of the containing groove 104 is one half of that of the upper buckle plate 101, a transparent circular plate 105 is arranged in the first round hole 103, the lower end of the transparent circular plate 105 is provided with a clamping portion 106 in plug-in fit with the containing groove 104, the thickness of the transparent circular plate 105 and the clamping portion 106 is one half of that of the upper buckle plate 101, after the transparent circular plate 105 is plugged into the first round hole 103, the upper end of the transparent circular plate 105 and the outer side of the upper buckle plate 101 are in the same plane, and the clamping portion 106 arranged at the lower end of the transparent circular plate 105 and the inner side of the upper buckle plate 101 are in the same plane. The upper buckle plate 101 is provided with a hole column 107 and an upper clamping hook 108 on the surface facing the upper cover plate, the surface of the base 102 facing the upper cover plate is provided with a second round hole 109 and a hole 110, the depth of the hole 110 is half of the thickness of the top surface of the base 102, the second round hole 109 corresponds to the first round hole 103, the hole 110 corresponds to the hole column 107, two sides of the base 102 are provided with side plates 111, the side plates 111 are provided with upper clamping grooves 112 corresponding to the upper clamping hook 108, the upper cover plate is provided with a first through hole 113, a second through hole 114 and an upper through groove 115, the first through hole 113 corresponds to the first round hole 103 or the second round hole 109, the second through hole 114 corresponds to the hole column 107 or the hole 110, the upper through groove 115 corresponds to the upper clamping hook 108 or the upper clamping groove 112, the hole column 107 penetrates through the second through hole 114 and then is inserted into the hole 110, and the upper clamping hook 108 penetrates through the upper through groove 115 and then is overlapped with the upper buckle plate 101 and is clamped with the upper buckle plate 102. The rear end of the base 102 is provided with a porous body 116, a first through hole 117 is formed in the horizontal direction of the porous body 116, a bolt jack 118 is formed in the vertical direction of the porous body 116, and the first through hole 117 is vertically communicated with the bolt jack 118. The base 102 is a hollow cuboid, overhanging guide rails 119 and blocking portions 120 are arranged on two sides of the inner wall of the base 102, the blocking portions 120 are tightly attached to the front ends of the guide rails 119, the upper ends of the blocking portions 120 are tightly attached to the inner sides of the top surface of the base 102, the lower ends of the blocking portions 120 and the lower ends of the guide rails 119 are in the same horizontal plane, elastic pieces 121 are fixedly connected to the rear ends of the guide rails 119, the lower ends of the elastic pieces 121 are tightly attached to the bottom surface of the base 102, and positioning pieces 122 are arranged on the inner sides of the bottom surface of the base 102.

Further, the lower shackle B includes: the lock body 201 positioned on the outer side of the front side plate of the turnover box and the lower buckle plate 202 positioned on the inner side of the front side plate of the turnover box, the lock body 201 comprises a lock tongue 203 positioned at the upper end and a lock hip 204 positioned at the lower end, the lock tongue 203 is in plug-in fit with a lock tongue jack 118, a second through hole 205 is formed in the lock tongue 203, the second through hole 205 corresponds to the first through hole 117, a groove 206 is formed in the lock hip 204, sliding grooves 207 are formed in two sides of the lock hip 204, a lower clamping hook 208 is arranged on the back surface of the lock hip 204, a lower clamping groove 209 corresponding to the lower clamping hook 208 is formed in the lower buckle plate 202, a lower through groove 210 is formed in the front side plate, the lower through groove 210 corresponds to the lower clamping hook 208 or the lower clamping groove 209, and the lower clamping hook 208 penetrates through the lower through groove 210 and the lower clamping groove 209 of the lower buckle plate 202 to enable the lock body 201 and the lower buckle plate 202 to be overlapped into a whole and clamp the front side plate.

Further, the latch C includes: the pin body 301 and the pin handle 302 are vertically and fixedly connected, the front surface of the pin body 301 is provided with the seal bottom plate 303, the middle of the pin body 301 is provided with the pin body groove 304, the front end of the pin body 301 is divided into two halves by the pin body groove 304, the seal bottom plate 303 is positioned at two sides of the pin body groove 304, the pin body groove 304 is in plug fit with the positioning piece 122 at the inner side of the bottom surface of the base 102, two sides of the front end of the pin body 301 are provided with the pin heads 305, the front end of the pin heads 305 is provided with the pin protrusions 306, the pin protrusions 306 are in plug fit with the blocking portion 120, two lower ends of the pin handle 302 are provided with the bolt sleeves 307, the distance between the outer sides of the front ends of the pin body 301 is the same as the width of the hollow space of the base 102, and the distance between the outer sides of the rear ends of the pin body 301 is smaller than the distance between the inner sides of the guide rails 119.

Further, the seal D is adhered to the seal bottom plate 303, the size of the circle where the seal D is located is consistent with that of the circle where the seal bottom plate 303 is located, a point cutting line 401 is arranged at the center line of the seal D, and the point cutting line 401 overlaps with the center line of the pin body groove 304.

Further, the plug E includes: the sliding block 501, one side of the sliding block 501 is provided with a sliding head 502, the lower end of the sliding block 501 is provided with a sliding hook 503, the sliding hook 503 is in plug-in fit with the sliding groove 207, the sliding block 501 is arranged on two sides of the front side of the hip 204 in a plug-in manner through the sliding hook 503 and the sliding groove 207, the sliding block 501 can move left and right, and the sliding head 502 is in plug-in fit with the bolt sleeve 307.

Further, the latch 203 may be inserted into the latch jack 118, the pin 301 is inserted into the first through hole 117, the second through hole 205 and the base 102 in sequence, and when the pin 301 is completely inserted into the base 102, the first circular hole 103, the first through hole 113, the second circular hole 109 and the seal bottom plate 303 overlap.

Further, the locking process of the lock catch of the invention is as follows: seal D is attached to seal base 303, and the broken line 401 of seal D overlaps the center line of pin slot 304. When the upper cover plate of the turnover box is folded towards the inner direction of the box, the lock tongue 203 positioned at the outer side of the front side plate of the turnover box is inserted into the lock tongue insertion hole 118 of the porous body 116 to form preliminary insertion fit, then the pin body 301 of the bolt C is inserted into the first through hole 117, the second through hole 205 and the base 102 in turn, when two sides of the pin boss 306 at the front end of the pin body 301 slide to the front end of the guide rail 119 and touch the blocking portion 120, the pin boss 306 is pressed backwards by force to narrow the gap at the front end of the pin body groove 304, the pin boss 306 passes through the blocking portion 120 to restore to the original state and then falls to the bottom surface of the base 102, the pin body 301 is tightly attached to the bottom surface of the base 102, at this time, the pin handle 302 is tightly attached to the groove 206 of the lower lock catch B, the positioning piece 122 is positioned in the pin body groove 304 between the pin handle 302 and the seal bottom plate 303, the top end of the positioning piece 122 is higher than the plane where the seal D attached to the seal bottom plate 303 is positioned, the seal bottom plate 303 is positioned under the first round hole 103, the first through hole 113 and the second round hole 109, and finally the lock catch E is arranged on the two sides of the plug head 307, namely the plug is inserted into the turnover box, and finally locked from the plug 502.

Further, the opening process of the lock catch of the invention is as follows: when the turnover box needs to be opened, the sliding heads 502 on the two sides are outwards pulled out from the bolt sleeves 307, if the pin boss 306 arranged on the pin body 301 moves upwards, the pin body 301 is about to withdraw the base 102 from the upper part of the guide rail 119, and when the pin boss 306 touches the blocking part 120, the blocking part 120 blocks the pin boss 306 from sliding, and the pin body 301 cannot be withdrawn from the base 102; if the pin 301 directly draws the base 102 horizontally and outwards, when the seal D stuck on the seal bottom 303 passes through the positioning piece 122 fixed on the inner side of the bottom surface of the base 102, the positioning piece 122 divides the seal D along the point cutting line 401, when the pin boss 306 arranged on the pin 301 touches the elastic piece 121, the lower end of the elastic piece 121 is stressed and then opens upwards, the pin boss 306 arranged on the pin 301 passes over the elastic piece 121 until the pin 301 is completely separated from the base 102, and the lock tongue 203 of the lower lock catch B is separated from the lock tongue jack 118 of the porous body 116, so that the upper cover plate of the turnover box can be opened.

The invention has the advantages that: compared with the prior art, the lock catch disclosed by the invention has the advantages that whether the seal D stuck on the seal bottom plate 303 is complete or not can be observed through the transparent circular plate 105 arranged on the upper buckle plate 101, if the seal D is complete, the turnover box is safe in the transportation process, and if the seal D is damaged, the turnover box is possibly disassembled in the transportation process, so that the purpose of preventing the disassembly is achieved, and the use safety of the turnover box is improved; the invention has the characteristics of simple structure, convenient use, high safety and the like; in addition, the lock disclosed by the invention can be recycled except for the seal, and has the characteristics of resource saving and environmental protection.

The foregoing examples have been provided merely to illustrate embodiments of the present invention, and the present invention is not to be construed as limiting the scope thereof, but it should be understood that any modifications and improvements in shape, size, material, connection, installation location, etc. which are within the scope of the invention will be apparent to those skilled in the art without departing from the spirit of the invention. The embodiment of the invention can be used for a turnover box and other devices, and is not to be construed as limiting the application scope of the invention.

Claims (3)

1. The lock catch for the turnover box is characterized by comprising an upper lock catch (A) arranged on an upper cover plate of the turnover box, a lower lock catch (B) arranged on a front side plate of the turnover box, plugs (E) arranged on two sides of the front side plate of the lower lock catch (B), and bolts (C) and seal labels (D);

the upper lock catch (A) comprises: the upper buckle plate (101) positioned on the outer side of the upper cover plate of the turnover box and the base (102) positioned on the inner side of the upper cover plate, wherein a first round hole (103) is formed in the upper buckle plate (101), a containing groove (104) is formed in the periphery of the inner side of the first round hole (103), a transparent circular plate (105) is arranged in the first round hole (103), a clamping position part (106) in plug-in fit with the containing groove (104) is formed at the lower end of the transparent circular plate (105), a hole column (107) and an upper clamping hook (108) are formed in the surface, facing the upper cover plate, of the upper buckle plate (101), a second round hole (109) and a hole (110) are formed in the surface, facing the upper cover plate, of the second round hole (109) corresponds to the first round hole (103), the hole (110) corresponds to the hole column (107), side plates (111) are arranged on two sides of the base (102), a clamping groove corresponding to the upper clamping hook (108) is formed in the side plate (111), a second round hole (109) corresponding to the hole (103), a second round hole (114) or a second round hole (114) corresponding to the second round hole (114) is formed in the base (102), the upper through groove (115) corresponds to the upper clamping hook (108) or the upper clamping groove (112), the hole column (107) passes through the second through hole (114) and then is inserted into the hole (110), the upper clamping hook (108) passes through the upper through groove (115) and is inserted into the upper clamping groove (112) to enable the upper clamping plate (101) and the base (102) to be overlapped into a whole and clamp the upper cover plate, a porous body (116) is arranged at the rear end of the base (102), a first through hole (117) is formed in the horizontal direction of the porous body (116), a bolt inserting hole (118) is formed in the vertical direction of the porous body (116), the first through hole (117) is vertically communicated with the bolt inserting hole (118), the base (102) is a hollow cuboid, guide rail (119) and a blocking part (120) are arranged on two sides of the inner wall of the base (102), a spring piece (121) is fixedly connected to the rear end of the guide rail (119), the blocking part (120) is located in front of the guide rail (119), and a positioning piece (122) is arranged on the bottom surface of the base (102).

The lower lock catch (B) comprises: the novel turnover box comprises a lock body (201) positioned on the outer side of a front side plate of the turnover box and a lower buckle plate (202) positioned on the inner side of the front side plate of the turnover box, wherein the lock body (201) comprises a lock tongue (203) positioned at the upper end and a lock hip (204) positioned at the lower end, the lock tongue (203) is in plug-in fit with a lock tongue jack (118), a second through hole (205) is formed in the lock tongue (203), a groove (206) is formed in the lock hip (204), sliding grooves (207) are formed in two sides of the lock hip (204), a lower clamping hook (208) is arranged on the back surface of the lock hip (204), a lower clamping groove (209) corresponding to the lower clamping hook (208) is formed in the lower buckle plate (202), a lower through groove (210) is formed in the front side plate, the lower through groove (210) corresponds to the lower clamping hook (208) or the lower clamping groove (209), and the lower clamping hook (208) penetrates through the lower through groove (210) and the lower clamping groove (209) of the lower buckle plate (202) to enable the lock body (201) to be in integral superposition with the lower buckle plate and clamp the front side plate to clamp the front side plate;

the bolt (C) comprises: the novel anti-theft lock comprises a pin body (301) and a pin handle (302), wherein the pin body (301) is vertically and fixedly connected with the pin handle (302), a seal bottom plate (303) is arranged on the front face of the pin body (301), a pin body groove (304) is formed in the middle of the pin body (301), the seal bottom plate (303) is located at two sides of the pin body groove (304), the pin body groove (304) is in plug-in fit with a locating piece (122) on the inner side of the bottom face of a base (102), pin heads (305) are arranged on two sides of the front end of the pin body (301), pin protrusions (306) are arranged on the front end of the pin heads (305), and bolt sleeves (307) are arranged at the lower ends of two sides of the pin handle (302);

the seal (D) is stuck on the seal bottom plate (303), a point cutting line (401) is arranged at the center line of the seal (D), and the point cutting line (401) is overlapped with the center line of the pin body groove (304);

the plug (E) comprises: slider (501), slider (501) one side be provided with slider (502), the lower extreme of slider (501) be provided with slip hook (503), slip hook (503) peg graft the cooperation with spout (207), slider (501) peg graft through slip hook (503) and spout (207) and set up in the front side both sides of lock buttock (204), slider (502) peg graft the cooperation with bolt cover (307), spring bolt (203) can insert spring bolt jack (118), the positive first through-hole (117), second through-hole (205) and base (102) of inserting in proper order of pin body (301), when pin body (301) take out base (102), locating piece (122) draw seal (D) of pasting on seal bottom plate (303) and divide along some broken cut-off line (401).

2. The lock catch according to claim 1, wherein the upper end of the blocking portion (120) is tightly attached to the inner side of the top surface of the base (102), the lower end of the blocking portion (120) is kept horizontal with the lower end of the guide rail (119), and the blocking portion (120) is in plug-in fit with a pin boss (306) provided on the pin head (305).

3. The shackle of claim 1 or 2, wherein the first circular hole (103), the first through hole (113), the second circular hole (109) and the tag base plate (303) overlap one another when the pin body (301) is fully inserted into the base plate (102).