CN113002410B

CN113002410B - Goods blocking device

Info

Publication number: CN113002410B
Application number: CN202110228497.2A
Authority: CN
Inventors: 阮云波; 朱正中; 陈小敏
Original assignee: Zhejiang Topsun Logistic Control Co Ltd
Current assignee: Zhejiang Topsun Logistic Control Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-07-15
Anticipated expiration: 2041-03-02
Also published as: CN113002410A

Abstract

The invention provides a goods blocking device, and belongs to the technical field of logistics equipment. It has solved the problem of current fender goods ware troublesome poeration and poor stability. This keep off goods ware, including mobile jib and tensioning rod, mobile jib one end slides with tensioning rod one end and cup joints, tensioning rod is fixed with the rack, it has the manipulation piece to articulate on the mobile jib, keep off goods ware still includes the locking pole, this locking pole one end articulates on the manipulation piece, the other end at the locking pole has the pawl, the pawl of locking pole can with the rack toothing and can drive the outside top of locking pole and push away the tensioning rod through the swing manipulation piece, and the pin joint of locking pole can be followed the one side of straight line between pawl and the manipulation piece pin joint and removed to the opposite side, make the manipulation piece compress tightly on the mobile jib under the reaction force of locking pole. This keep off goods ware convenient operation and stability are good.

Description

Goods blocking device

Technical Field

The invention belongs to the technical field of logistics equipment, and relates to a goods blocking device.

Background

Goods need be fixed in the transportation, and lack the fixed point in van's the carriage, and the volume of different goods is different, leads to the goods in the carriage to be difficult to bind fixedly through the rope, and keeps off goods ware and be used for the carriage in to block the logistics equipment of location to the goods, keeps off the adjustable length of goods ware to can support both ends tightly on the both sides wall in carriage, the fender goods ware after the fixing can block the location to the goods.

The prior cargo blocking device is a device for fixing cargos used on a motor vehicle as disclosed in the patent document (application number: 200310108418.6), and comprises a body, a handle, a rack, a pipe and a positioning claw, wherein the handle is hinged with the body, the hinged part of the handle is positioned at the front end part of the handle, the edge of the front end part of the handle is provided with teeth, the rack passes through the body, the pipe consists of an inner pipe and an outer pipe which are sleeved together, the inner pipe is fixedly connected with the body, a positioning device is arranged between the inner pipe and the outer pipe, when the length is adjusted, the rack can be pushed outwards by pulling the handle, then a positioning pin of the positioning claw on the outer pipe is required to be inserted into a notch of the handle for locking, as the inner pipe is always subjected to supporting reaction force, the reaction force acts on the handle, the positioning pin is always stressed, the deformation and the instability of the positioning pin are caused by long-term use, and simultaneously the supporting action of the whole cargo blocking device is ensured by one positioning pin, if the supporting acting force is too big, the locating pin will be out of order, and then the whole goods blocking device is out of order, so that the use stability is poor, the handle is required to be pulled when the structure is used, the locating pin is required to be operated in a matched mode, two hands are required to operate, and the whole operation process is troublesome.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a goods blocking device which is used for solving the problems of troublesome operation and poor stability of the conventional goods blocking device.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a keep off goods ware, includes mobile jib and tensioning rod, mobile jib one end slides with tensioning rod one end and cup joints, tensioning rod is last to be fixed with the rack along length direction, it has the manipulation piece to articulate on the mobile jib, a serial communication port, keep off goods ware still includes the locking pole, and this locking pole one end articulates on the manipulation piece, and the other end has the pawl towards the direction that tensioning rod stretches out, and has the pawl at the other end of locking pole, and the pawl of locking pole can with rack toothing and can drive the outside top of locking pole through swing manipulation piece and push away the tensioning rod, and the pin joint of locking pole can follow one side of straight line between pawl and the manipulation piece pin joint and remove to the opposite side for the manipulation piece compresses tightly on the mobile jib under the reaction force of locking pole.

The free end of the control piece is used for hand-held operation, the engagement and the separation of a pawl and a rack on the locking rod are realized through the swing of the control piece, the pawl on the locking rod is disengaged from the rack before the goods blocking device is tensioned, the positions of the tensioning rod and the main rod are adjusted to ensure that two ends of the goods blocking device are respectively abutted against two inner walls of a boxcar, then the control piece is pulled to ensure that the pawl on the locking rod is engaged with the rack, and one end of the locking rod, which is provided with the pawl, extends towards the direction of the extension of the tensioning rod, so that the control piece drives the locking rod to move, the locking rod pushes the tensioning rod outwards until the control piece is abutted against the main rod and is difficult to swing, the tensioning rod and the main rod are tensioned between the two inner walls of the boxcar at the moment, because the pawl is used as a direct force action point of the rack, a straight connecting line of the hinged point of the pawl and the control piece is a critical point, when the hinged point of the locking rod is positioned at one side of the connecting line, the reactive force of the locking rod on the control piece can ensure that the control piece has the tendency of swinging and the separation of the control piece, but the pin joint of locking lever crosses the straight line of pawl to the pin joint of manipulation piece and is located the opposite side when, the locking lever makes the manipulation piece have the trend that further compresses tightly the mobile jib to the reaction force of manipulation piece, tensioning lever tensioning is tighter more promptly, it supports the reaction force that receives more greatly, the manipulation piece compresses tightly the mobile jib and also tighter, the locking lever is more stable to the locking of tensioning lever, thereby the reaction force that receives when having utilized keeping off goods ware tensioning comes to compress tightly the location to the manipulation piece, and then improve the stability in use of whole fender goods ware, this structure also makes the manipulation piece need not other extra parts simultaneously spacing, only need swing the manipulation piece when the operation can, it is more convenient to operate.

In foretell fender goods ware, the mobile jib is the tubulose, tensioning rod one end slides and pegs graft in the mobile jib, and above-mentioned rack is located the mobile jib, it is outside that manipulation piece and locking pole all are located the mobile jib, and the pawl of locking pole can follow the mobile jib lateral part and stretch into in the mobile jib and mesh with the rack. The tensioning rod is inserted in the mobile jib, guarantees stability, and the control part is located the mobile jib outside, the handheld operation of being convenient for, and the rack is located inside the mobile jib, and the pawl also stretches into the internal and rack toothing of pole for the meshing position is hidden in the mobile jib, avoids receiving to collide with, striking etc. and leads to the pawl to take off from the rack pine, guarantees stability in use.

In the cargo blocking device, the operating part is hinged to the main rod through the first pin shaft, the locking rod is hinged to the operating part through the second pin shaft, the second pin shaft is located between the pawl and the first pin shaft when the operating part swings to enable the pawl of the locking rod to outwards push the tensioning rod, and the second pin shaft moves to the other side from one side of a straight connecting line of the pawl and the first pin shaft. The relative positions of the first pin shaft, the second pin shaft and the pawl are set, so that the control piece can push the locking rod when swinging towards the stretching direction of the tension rod, and meanwhile, when the control piece is pressed on the main rod under the reaction force of the locking rod, the second pin shaft is positioned on the inner side of a straight connecting line of the pawl and the first pin shaft, so that the control piece has the trend of being pressed on the main rod, and the use stability is ensured.

In the cargo blocking device, the operating part is in a strip plate shape, two side edges of one end of the operating part are bent to form a connecting flange, the first pin shaft and the second pin shaft are both connected to the connecting flange, and the vertical distance from the second pin shaft to the operating part is larger than that from the first pin shaft to the operating part. Through round pin axle one and round pin axle two position setting on connecting the turn-ups, the locking pole compresses tightly the manipulation piece when the manipulation piece compresses tightly on the mobile jib for the manipulation piece has the trend of compressing tightly on the mobile jib, guarantees stability in use.

In foretell fender goods ware, mobile jib one side has two and connects protruding edges along length direction, connect the turn-ups to be located two and connect between protruding edges, and round pin hub connection connects on two connect protruding edges, control a piece other end both sides limit bending type is supported and is leaned on the turn-ups, and supports under the reaction force of lock pole and lean on the turn-ups can compress tightly on connecting protruding edge, and the lock pole is located between control a piece and the mobile jib when supporting and pressing tightly connecting protruding edge. The support that keeps off on the control member during goods ware tensioning supports presses on connecting protruding edge, guarantees stability, and control member closing cap is connected protruding edge top at two simultaneously for the locking pole is hidden between two connection protruding edges of control member below, avoids the locking pole to receive to collide with or the striking, guarantees stability in use.

In foretell fender goods ware, seted up a plurality of breachs of stepping down on the mobile jib lateral wall, still be equipped with the extension spring in the mobile jib, the one end of this extension spring is close to the round pin axle and connects on the mobile jib in the lump, and the other end passes one of them breach of stepping down and is connected with the locking pole, the relative locking pole slope of pawl sets up, and the pawl can pass another breach of stepping down and has the trend that leans on with the rack counterbalance all the time under the effect of extension spring. The pawl on the locking rod always has the trend that the pawl inwards leans against the rack under the action of the tension spring, so that the pawl is meshed with the rack in the first time when the operating part swings, the continuous swinging of the operating part is converted into outward pushing and tensioning of the tension rod, and the operation reliability and the use stability are guaranteed.

In the cargo blocking device, a lifting pin shaft is vertically fixed between two inner side walls of the main rod, a limiting pin shaft is vertically fixed between the two connecting convex edges, and when the control part swings to abut against the limiting pin shaft, the pawl is separated from the rack and abuts against the lifting pin shaft. Make the locking pole inwards remove when the control piece swing, until control piece and spacing round pin axle support and lean on, the one end that the locking pole had the pawl at this moment supports and supports on the lifting round pin axle for the pawl upwards lifts and breaks away from the rack, and the tensioning lever of being convenient for freely stretches out and draws back.

In the above goods stopper, the rack has meshing teeth distributed along the length direction, the meshing teeth have guide surfaces arranged obliquely and locking surfaces perpendicular to the length direction of the rack, the locking surfaces face one side where the locking rod is located, the top ends of the guide surfaces are inclined towards one side where the locking rod is locked, and the pawl is provided with ratchets matched with the meshing teeth. The operating piece swings towards the direction in which the tension rod is inserted to enable the pawl to slide along the guide surface, and swings towards the direction in which the tension rod extends to enable the pawl to abut against the locking surface and push the tension rod outwards.

In foretell fender goods ware, the tensioning rod is the tubulose, the tip of rack has massive connecting portion, and this connecting portion are pegged graft and are fixed in the inner of tensioning rod, and rack and the coaxial setting of tensioning rod, the mobile jib internal fixation has two to lean on the round pin axle, should two to lean on the both sides that the round pin axle is located connecting portion respectively, the bar breach has been seted up along length direction on the tensioning rod lateral wall, and what be located the connecting portion outside supports and passes the bar breach to the round pin axle, the mobile jib all is equipped with the tensioning spring in the both sides of connecting portion, and one of them tensioning spring housing is established on the rack, and another setting is in the tensioning rod, two the one end of tensioning spring supports respectively to lean on the both ends terminal surface of connecting portion, and the other end supports respectively to lean on two to lean on the round pin axle. The tensioning rod is in the steady state under the effect of two tensioning springs, when the control piece swings and makes locking pole and rack throw off promptly, the inside tensioning spring of tensioning rod can inwards push away the tensioning rod for connecting portion compress the tensioning spring in the mobile jib, avoid the inside and outside drunkenness of tensioning rod under the locking pole unclamping state, when the control piece swing makes the locking rod outwards push away the tensioning rod, the tensioning rod can compress inside tensioning spring, make the tensioning rod be in the steady state all the time.

In foretell fender goods ware, keep off goods ware still includes two lip block, the other end of mobile jib is connected with the regulation pole, and one of them lip block is connected in the outer end of adjusting the pole, is connected with the buffer beam on another lip block, the buffer beam slides and pegs graft in the outer end of tensioning rod, still is equipped with buffer spring between buffer beam and tensioning rod. Support and lean on the carriage inner wall through the lip block, increase frictional force, guarantee stability, and the outside top of locking pole pushes away the tensioning lever when tensioning lever can compress buffer spring for the lip block compresses tightly on the carriage inner wall with suitable dynamics, and can be applicable to the carriage of different width.

Compared with the prior art, the cargo blocking device has the following advantages:

1. because the pawl is as the direct force action point of rack, its straight line with the pin joint of manipulation piece is the critical point, when the pin joint of lock pole was located the inboard of the straight line of pawl to the pin joint of manipulation piece, the reaction force of lock pole to the manipulation piece makes the manipulation piece have the trend of further compressing tightly the mobile jib, and the tension bar tensioning is tighter promptly, and the support reaction force that it received is bigger, and the manipulation piece compresses tightly the mobile jib and also is tighter, and the locking of lock pole to the tension bar is more stable to the reaction force that receives when having utilized the tensioning of fender goods ware compresses tightly the location to the manipulation piece, and then improved the stability in use of whole fender goods ware.

2. Because the fender goods ware only need pull when using the manipulation piece can, the manipulation piece utilizes the reaction force of locking pole to realize the auto-lock, and this makes the manipulation piece need not other extra parts and carries on spacingly, and it is more convenient to operate.

3. Because support on the manipulation piece during fender goods ware tensioning supports to press on connecting protruding edge by the turn-ups, guarantee stability, manipulation piece closing cap is in two protruding edge tops of connecting simultaneously for the locking pole is hidden between two protruding edges of connecting of manipulation piece below, avoids the locking pole to receive to collide with or the striking, guarantees stability in use.

Drawings

Fig. 1 is a schematic perspective view of a cargo stopper.

Fig. 2 is an enlarged view of a structure at a in fig. 1.

Fig. 3 is a structural sectional view of the cargo stopper.

Fig. 4 is a partial cross-sectional structural view of the cargo barrier at the locking lever with the locking lever disengaged from the rack gear.

Fig. 5 is a partial sectional view of the structure at the locking lever of the cargo barrier when the locking lever is engaged with the rack gear.

Fig. 6 is an enlarged view of the structure at B in fig. 3.

Fig. 7 is an enlarged view of the structure at C in fig. 3.

Fig. 8 is a partial structural sectional view of the cargo stopper at the pressing piece.

Fig. 9 is an enlarged view of the structure at D in fig. 1.

Fig. 10 is an enlarged view of the structure at E in fig. 8.

In the figure, 1, a main rod; 11. connecting the convex edges; 12. a abdication gap; 13. lifting the pin shaft; 14. a limiting pin shaft; 15. supporting the pin shaft; 16. abutting against the pin shaft; 17. avoiding the gap; 18. a connecting pin; 2. a tension rod; 21. a strip-shaped notch; 3. a rack; 31. meshing teeth; 32. a connecting portion; 33. tensioning the spring; 4. a manipulation member; 41. a first pin shaft; 42. connecting the flanging; 43. abutting against the flanging; 5. a lock lever; 51. a pawl; 52. a second pin shaft; 53. a tension spring; 54. a limiting groove; 6. a buffer rod; 61. a buffer spring; 7. adjusting a rod; 71. positioning holes; 8. a pressing member; 81. a pressing part; 82. an abutting portion; 83. positioning pins; 84. a mounting recess; 9. a return torsion spring; 10. and supporting the cushion block.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a cargo barrier comprises a main rod 1, a tension rod 2 and an adjusting rod 7, wherein the main rod 1, the tension rod 2 and the adjusting rod 7 are all tubular, the cross sections of the main rod 1, the tension rod 2 and the adjusting rod 7 are all rectangular, one end of the tension rod 2 is inserted into one end of the main rod 1 and is in sliding fit, one end of the adjusting rod 7 is inserted into the other end of the main rod 1 and is in sliding fit, the outer ends of the tension rod 2 and the adjusting rod 7 are both connected with a supporting cushion block 10, a rack 3 is fixed at the inner end of the tension rod 2 along the length direction, the rack 3 and the tension rod 2 are coaxially arranged and are positioned inside the main rod 1, the cargo barrier further comprises an operating piece 4 and a locking rod 5, the operating piece 4 and the locking rod 5 are both positioned outside the main rod 1, the operating piece 4 is in a strip plate shape, one end of the operating piece 4 is hinged on the main rod 1 through a first pin shaft 41, one end of the locking rod 5 is hinged on the operating piece 4 through a second pin shaft 52, and the first pin shaft 52 is close to the first pin shaft 41, the other end of the locking rod 5 faces the extending direction of the tension rod 2, the other end of the locking rod 5 is provided with a pawl 51, the pawl 51 extends into the main rod 1 and is opposite to the rack 3, when the operating piece 4 swings towards the extending direction of the tension rod 2, the pin shaft two 52 is located between the pawl 51 and the pin shaft one 41, the pawl 51 of the locking rod 5 can be meshed with the rack 3 and pushes the tension rod 2 outwards, when the operating piece 4 swings to abut against the main rod 1, the pin shaft two 52 moves to the inner side from the outer side of a straight connecting line of the pawl 51 and the pin shaft one 41, namely the pin shaft two 52 is located from the meshing position of the pawl 51 and the rack 3 to the inner side of the straight connecting line of the pin shaft one 41, and when the operating piece 4 swings towards the inserting direction of the tension rod 2, the locking rod 5 can be pulled, so that the pawl 51 is separated from the rack 3.

Referring to fig. 5, the main rod 1 has a connecting convex edge 11 along the length direction at both edges of one side, the operating member 4 is in the form of a strip plate, the width of the operating piece 4 is smaller than the width of the gap between the two connecting convex edges 11, two side edges of one end of the operating piece 4 are bent to form a connecting flange 42, the first pin shaft 41 and the second pin shaft 52 are both connected on the connecting flange 42, and the vertical distance from the second pin shaft 52 to the operating piece 4 is greater than that from the first pin shaft 41 to the operating piece 4, the connecting flange 42 is positioned between the two connecting convex edges 11, and the first pin shaft 41 is connected on the two connecting convex edges 11, two side edges at the other end of the operating piece 4 are bent to form abutting flanges 43, and the abutting flange 43 can be pressed on the connecting convex edges 11 under the action of the locking rod 5, at the moment, the operating piece 4 can cover the gap between the two connecting convex edges 11, and the locking lever 5 is located between the operating member 4 and the main lever 1 when the abutting flange 43 is pressed against the connecting flange 11. Three abdicating notches 12 are formed in the side wall of the main rod 1, a tension spring 53 is further arranged in the main rod 1, one end of the tension spring 53 is close to the first pin shaft 41 and is connected to the main rod 1, the other end of the tension spring passes through one of the abdicating notches 12 and is connected with the locking rod 5, the position where the tension spring 53 is connected with the locking rod 5 is closer to the pawl 51 relative to the first pin shaft 41, the pawl 51 is obliquely arranged relative to the locking rod 5, the pawl 51 can pass through the other abdicating notch 12 under the action of the tension spring 53 and always has a tendency of abutting against the rack 3, and the third abdicating notch 12 is located at the first pin shaft 41 and is used for abdicating the connection flanging 42 when the operating piece 4 swings. The rack 3 is provided with meshing teeth 31 distributed along the length direction, each meshing tooth 31 is provided with a guide surface and a locking surface, the guide surfaces are obliquely arranged, the locking surfaces are perpendicular to the length direction of the rack 3, the locking surfaces face to the side where the locking rod 5 is located, the top ends of the guide surfaces are oblique to the locking side of the locking rod 5, and the pawl 51 is provided with ratchets matched with the meshing teeth 31. Lifting pin shaft 13 is vertically fixed between two inner side walls of main rod 1, limiting pin shaft 14 is vertically fixed between two connecting convex edges 11, the edge of pawl 51 is provided with a limiting groove 54, pawl 51 can be meshed with rack 3 and pushes up a locking surface when operating part 4 swings to the direction that tension rod 2 extends out, pawl 51 can slide along a guide surface when operating part 4 swings to the direction that tension rod 2 inserts, pawl 51 is separated from rack 3 when operating part 4 abuts against limiting pin shaft 14, and pawl 51 is lifted and abuts against lifting pin shaft 13 through limiting groove 54.

Referring to fig. 6 and 7, the end of the rack 3 has a block-shaped connecting portion 32, the connecting portion 32 is inserted and fixed at the inner end of the tension rod 2, two abutting pin shafts 16 are fixed in the main rod 1, the two abutting pin shafts 16 are respectively located at two sides of the connecting portion 32, a bar notch 21 is formed in the side wall of the tension rod 2 along the length direction, the abutting pin shaft 16 located at the outer side of the connecting portion 32 passes through the bar notch 21, the main rod 1 is provided with tension springs 33 at two sides of the connecting portion 32, one of the tension springs 33 is sleeved on the rack 3, the other is arranged in the tension rod 2, one ends of the two tension springs 33 respectively abut against the end faces of the two ends of the connecting portion 32, and the other ends respectively abut against the two abutting pin shafts 16. Still be fixed with a plurality of guide pin axles in mobile jib 1, these a plurality of backing pin axles 15 all are located rack 3 below, and locking lever 5 and backing pin axle 15 are located the both sides of rack 3 respectively promptly, and backing pin axle 15 can support rack 3 when the pawl 51 of locking lever 5 compresses tightly on rack 3. One of them lip block 10 is connected in the outer end of adjusting pole 7, and is connected with buffer beam 6 on another lip block 10, and buffer beam 6 slides and pegs graft in the outer end of tensioning rod 2, still is equipped with buffer spring 61 in buffer beam 6, and this buffer spring 61's one end supports and leans on tensioning rod 2, and the other end supports and leans on buffer beam 6.

As shown in fig. 8, 9 and 10, the cargo barrier further includes a pressing member 8, a connecting pin 18 is vertically fixedly connected between the two connecting convex edges 11, the pressing member 8 has a connecting hole, and the pressing member 8 is sleeved on the connecting pin 18 through the connecting hole, so that the pressing member 8 can swing, the pressing member 8 has a pressing portion 81 and an abutting portion 82, the pressing portion 81 and the abutting portion 82 are respectively located at two sides of the connecting pin 18, the lower side surface of the abutting portion 82 has a positioning pin 83 protruding downward, the positioning pin 83 and the abutting portion 82 are of an integral structure, the main rod 1 has an avoiding gap 17 on the side wall, the avoiding gap 17 is opposite to the pressing member 8, the side wall of the adjusting rod 7 opposite to the avoiding gap 17 is provided with a plurality of positioning holes 71 along the length direction, the plurality of positioning holes 71 are evenly distributed at intervals, the hole diameter of the positioning hole 71 is larger than the outer diameter of the positioning pin 83, the pressing member 8 has a mounting notch 84 with a downward opening, this installation notch 84 is located to press the portion 81 and support between the portion 82, the connecting hole is linked together with installation notch 84, connecting pin 18 passes installation notch 84, still the cover is equipped with reset torsion spring 9 on connecting pin 18, reset torsion spring 9 sets up in installation notch 84, and the one end of reset torsion spring 9 supports and supports on the mobile jib 1 lateral wall, the other end supports and supports on pressing the portion 81, locating pin 83 can pass dodge breach 17 and plug in locating hole 71 under the effect of reset torsion spring 9, support when locating pin 83 pegs graft in locating hole 71 and support on the mobile jib 1 lateral wall by portion 82, and press the portion 81 to upwards the arc to stick up, press portion 81 to be less than the top surface of connecting protruding edge 11 when locating pin 83 deviates from locating hole 71.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms main bar 1, connecting ledge 11, relief notch 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A cargo blocking device comprises a main rod (1) and a tension rod (2), one end of the main rod (1) is in sliding sleeve connection with one end of the tension rod (2), a rack (3) is fixed on the tension rod (2) along the length direction, an operating piece (4) is hinged on the main rod (1) through an articulating point of the operating piece (4), the cargo blocking device is characterized by further comprising a locking rod (5), one end of the locking rod (5) is hinged on the operating piece (4) through the articulating point of the locking rod (5), the other end of the locking rod faces the extending direction of the tension rod (2), a pawl (51) is arranged at the other end of the locking rod (5), the pawl (51) of the locking rod (5) can be meshed with the rack (3) and can drive the locking rod (5) to push the tension rod (2) outwards through swinging the operating piece (4), and the articulating point of the locking rod (5) can move to the other side from one side of a connecting line between the pawl (51) and the articulating point of the operating piece (4), so that the actuating element (4) is pressed against the main lever (1) by the counterforce of the locking lever (5).

2. Cargo barrier according to claim 1, characterized in that the main rod (1) is tubular, that one end of the tensioning rod (2) is slidably inserted into the main rod (1), that the rack (3) is located in the main rod (1), that the operating member (4) and the locking rod (5) are both located outside the main rod (1), and that the pawl (51) of the locking rod (5) can extend into the main rod (1) from the side of the main rod (1) and engage with the rack (3).

3. The cargo stop according to claim 2, wherein the operating member (4) is hinged to the main rod (1) by a first pin (41), the locking rod (5) is hinged to the operating member (4) by a second pin (52), and when the operating member (4) swings so that the pawl (51) of the locking rod (5) pushes the tension rod (2) outwards, the second pin (52) is located between the pawl (51) and the first pin (41), and the second pin (52) moves from one side of a straight line connecting the pawl (51) and the first pin (41) to the other side.

4. The cargo stop according to claim 3, characterized in that the operating member (4) is in the shape of a strip plate, two side edges of one end of the operating member (4) are bent to form a connecting flange (42), the first pin (41) and the second pin (52) are both connected to the connecting flange (42), and the vertical distance from the second pin (52) to the strip plate of the operating member (4) is greater than the vertical distance from the first pin (41) to the strip plate of the operating member (4).

5. The cargo stop according to claim 4, wherein one side of the main rod (1) is provided with two connecting convex edges (11) along the length direction, the connecting flange (42) is positioned between the two connecting convex edges (11), the first pin shaft (41) is connected to the two connecting convex edges (11), two side edges of the other end of the operating piece (4) are bent to form the abutting flange (43), the abutting flange (43) can be pressed on the connecting convex edge (11) under the reaction force of the locking rod (5), and the locking rod (5) is positioned between the operating piece (4) and the main rod (1) when the abutting flange (43) is pressed on the connecting convex edge (11).

6. The cargo blocking device according to any one of claims 2 to 5, wherein a plurality of abdicating notches (12) are formed in the side wall of the main rod (1), a tension spring (53) is further arranged in the main rod (1), one end of the tension spring (53) is close to the first pin shaft (41) and is connected to the main rod (1), the other end of the tension spring passes through one of the abdicating notches (12) and is connected with the locking rod (5), the pawl (51) is obliquely arranged relative to the locking rod (5), and the pawl (51) can pass through the other abdicating notch (12) under the action of the tension spring (53) and always has a tendency of abutting against the rack (3).

7. The cargo barrier according to claim 5, characterized in that a lifting pin (13) is vertically fixed between two inner side walls of the main rod (1), a limiting pin (14) is vertically fixed between two connecting flanges (11), and when the operating member (4) swings to abut against the limiting pin (14), the pawl (51) is separated from the rack (3) and abuts against the lifting pin (13).

8. Cargo barrier according to any of claims 1-5, characterized in that the gear rack (3) has engaging teeth (31) distributed along the length direction, the engaging teeth (31) each have an obliquely arranged guide surface and a locking surface perpendicular to the length direction of the gear rack (3), the locking surface faces the side of the locking rod (5), the top end of the guide surface is inclined to the locking side of the locking rod (5), and the pawl (51) has ratchet teeth adapted to the engaging teeth (31).

9. The cargo blocking device according to any one of claims 1 to 5, wherein the tensioning rod (2) is tubular, the end of the rack (3) has a block-shaped connecting portion (32), the connecting portion (32) is inserted and fixed at the inner end of the tensioning rod (2), the rack (3) and the tensioning rod (2) are coaxially arranged, two abutting pin shafts (16) are fixed in the main rod (1), the two abutting pin shafts (16) are respectively located at two sides of the connecting portion (32), a strip-shaped notch (21) is formed in the side wall of the tensioning rod (2) along the length direction, the abutting pin shaft (16) located at the outer side of the connecting portion (32) passes through the strip-shaped notch (21), the main rod (1) is provided with tensioning springs (33) at two sides of the connecting portion (32), one of the tensioning springs (33) is sleeved on the rack (3), the other is arranged in the tensioning rod (2), one end of each tensioning spring (33) abuts against the end faces of two ends of the connecting portion (32), and the other end of each tensioning spring abuts against the abutting pin shafts (16).

10. The cargo blocking device according to any one of claims 1 to 5, further comprising two supporting pads (10), wherein the other end of the main rod (1) is connected with an adjusting rod (7), one of the supporting pads (10) is connected to the outer end of the adjusting rod (7), the other supporting pad (10) is connected with a buffer rod (6), the buffer rod (6) is slidably inserted into the outer end of the tension rod (2), and a buffer spring (61) is further arranged between the buffer rod (6) and the tension rod (2).