CN107964887B - Main network barrier length compensation mechanism of combined network barrier with function of allowing people to pass - Google Patents

Abstract

The utility model provides a major network barrier length compensation mechanism of barrier is netted to combination formula with supply personnel function of passing through, combination formula net barrier include that the main network hinders frame and major network barrier, combination formula net barrier includes the major network barrier, major network barrier length compensation mechanism includes vice net barrier drive arrangement and vice net barrier, vice net barrier drive arrangement includes bottom plate, motor cabinet, motor, bearing seat frame, first, second sprocket, sprocket seat fixed plate and chain, characteristics: a passing door is arranged on the auxiliary net barrier; a chain transition fixing device is arranged on the chain and at a position corresponding to the auxiliary net barrier cross beam, and the chain is connected with the auxiliary net barrier cross beam through the chain transition fixing device; the bottom plate is fixed with the bottom of the right end of the main network barrier in a state of being parallel to the short side direction of the main network barrier, and the motor is a harmonic speed reduction motor and is fixed with the motor base in a state of being parallel to the short side direction of the main network barrier. Time is saved; the permanent and reliable fixing effect of the chain and the auxiliary net barrier is ensured; the length of the auxiliary net barrier extending out of the main net barrier is ensured.

Description

Main network barrier length compensation mechanism of combined network barrier with function of allowing people to pass

Technical Field

The invention belongs to the technical field of road isolation facilities, and particularly relates to a main barrier length compensation mechanism of a combined type barrier with a function of allowing people to pass.

Background

The applicant refers above to barriers not to the usual road barriers but to temporary barriers with specific uses, such as: the barrier is formed for the isolation of areas with possibility of causing adverse effects on institutions, schools, military exclusion areas and the like caused by emergent events, areas with crowds who are busy in accidents, areas temporarily isolated at the site of an extremely large accident, and areas with possibility of causing adverse effects on the institutions, schools, military exclusion areas and the like, and even for the isolation of key roads for military purposes.

In the prior art, most of the isolation facilities (which are conventionally called roadblocks in the industry) applied to the occasions are combined type roadblock net sheets which are pre-arranged on military or police vehicles, and when the roadblock is arranged (also called roadblock arrangement), the roadblock net sheets are lifted off from the vehicles by manpower, placed in an isolation place and fixed by arranging supports.

When sealing control is carried out abroad, soldiers and/or policemen often hold shields by hands to form a human wall barrier, the mode can only play a role for a while, has poor durability, cannot really seal control on roads or specific areas, even causes injury or death of sealing control personnel, is easy to break through, and is more incapable of dealing with the impact of vehicles such as vehicles; the use of container plugging is not uncommon abroad, but the container is large in volume, heavy and difficult to load, unload and transport, and the length of the obstacle is difficult to control; although the mobile barricade has the advantage of short-distance movement, the mobile barricade has the defects of the barrier sealing of the co-stored container and poor impact resistance; besides the defects of the container, the isolation wall also has the problem of long barrier period.

It is needless to say that, considering both the rapidity in deploying obstacles and the convenience in removing obstacles and the reduction of labor intensity in manual operation, it is ideal to combine both vehicles and barriers so that both obstacles can be removed and deployed by vehicle-mounted power, but it has been practically proven that at least the following two disadvantages exist: firstly, because the vehicle and the barrier are mutually connected and cannot be separated, the occupied cost is high, namely one vehicle and one barrier occupy valuable vehicle resources; secondly, it is easy to cause two hazards because the fuel (fuel tank) of the vehicle is difficult to resist the inflammable matter thrown by man.

The obstacle arrangement vehicle provided by the chinese patent publication No. CN100408758C is provided with a network barrier on a trailer, and after the trailer is towed to an obstacle arrangement site by a host vehicle, the host vehicle can drive away from the obstacle arrangement site, so that the occupation of host vehicle resources can be avoided, but obstacle arrangement and obstacle removal still need to be manually operated, which can be specifically referred to the description on page 5, lines 13-25 of the specification of the patent. In addition, the steel has the defects of weak capability of resisting the extrusion of external force and easiness in overstepping.

Of course, it is certainly an extremely good choice to separate the vehicle from the solid barrier by having the effect of hulling cicadas, since this can save vehicle resources, prevent the vehicle fuel tank from being attacked by inflammable and cause accidents, and make the barrier hard and insusceptible. Therefore, the purposes of the combined type net barrier gradient compensation mechanism recommended by the Chinese invention patent publication No. CN102146662B, the combined type net barrier capable of automatically separating from the vehicle provided by CN102061670B and the combined type net barrier vehicle and barrier separation mechanism introduced by CN102061671B achieve the purposes and the main net barrier length compensation mechanism is disclosed by the three patents. The term main barrier length compensation mechanism is explained and incorporated in the three patent specifications: when the road is relatively spacious and is not enough to achieve the purpose of sealing and controlling by the main barrier with the limited length, the main barrier length compensation mechanism which is configured on the main barrier in a storage mode is started, and the main barrier length compensation mechanism cooperates with the main barrier to seal and control, and vice versa.

Taking CN102061670B and CN102061671B as examples, it can be known from the descriptions of paragraphs 0044 to 0046: the main network barrier length compensation mechanism mainly comprises an auxiliary network barrier driving device and an auxiliary network barrier, the auxiliary network barrier driving device comprises a motor, a speed reducer, a first transmission wheel, a second transmission wheel and a transmission belt, the motor is matched with the speed reducer and is fixed at the bottom (located at the right end) of the main network barrier together with the motor through a speed reducer base, the first transmission wheel is fixed on an output shaft of the speed reducer, the second transmission wheel is arranged at the bottom (located at the left end) of the main network barrier through a mounting seat, the transmission belt is fixed with a transmission belt fixing lug preset on the auxiliary network barrier and is sleeved on the first transmission wheel and the second transmission wheel, the auxiliary network barrier and the main network barrier form a nesting relation, a roller is arranged at the bottom of the auxiliary network barrier, and the roller and a guide rail fixed at the bottom of the main network barrier form a rolling pair.

Although both CN102146662B, CN102061670B and CN102061671B can objectively demonstrate the technical effects described in the technical effect column of the respective specifications, there are general disadvantages in the following four aspects: firstly, when a network barrier (namely, a roadblock, the same below) is erected, the length range of the whole block is set up in a sealing and controlling way, specific personnel on two sides inside and outside the block, such as policemen inside the block, and people representatives outside the block, cannot pass through the length range, and can only bypass the roadblock from the end of the roadblock, and particularly when a plurality of network barriers are connected into a whole in a circulating combination mode, the length of the whole roadblock can reach hundreds of meters or even longer, so that communication between personnel inside and outside the block is more inconvenient; secondly, if a personnel passage is reserved by retraction of the auxiliary net barrier, a power system and a driving device in the roadblock must be started to retract the heavy auxiliary net barrier, the preparation time is long, the operation is complicated, the energy consumption is high, and the personnel passage is inconvenient to open and close frequently in a short time; thirdly, because the chain (called as a transmission belt in the patent) of the structure system of the auxiliary net barrier driving device is fixed with the chain fixing lug (called as a transmission belt fixing lug in the patent) on the auxiliary net barrier, the fixing effect of the chain and the auxiliary net barrier is difficult to guarantee durably, and in the process that the chain pulls the auxiliary net barrier to move, the stress at the joint of the chain and the fixing lug is concentrated, so that the fixing lug and the auxiliary net barrier are separated; fourthly, the structure system of the auxiliary net barrier driving device adopts the matching form of the motor and the speed reducer, the arrangement mode is parallel to the long edge direction of the main net barrier, and the length of the motor and the length of the speed reducer are about one meter, so that the distance between the first chain wheel and the second chain wheel (called as a first driving wheel and a second driving wheel) is limited, namely, the length of the motor and the length of the speed reducer occupy the distance between the first chain wheel and the second chain wheel to a certain extent, and the extending length of the auxiliary net barrier is influenced.

In view of the above-mentioned prior art, there is still a need for improvement, for which the applicant has made an advantageous design and has developed the solution described below.

Disclosure of Invention

The invention aims to provide a main network barrier length compensation mechanism of a combined network barrier, which is beneficial to avoiding detour and saving time by allowing specific personnel inside and outside the network barrier to pass in an emergency according to needs, is beneficial to ensuring the durable and reliable fixing effect of a chain and an auxiliary network barrier so as to avoid the situation that the chain and the auxiliary network barrier are separated and even damaged in the repeated traction process, and is beneficial to obviously increasing the distance between a first chain wheel and a second chain wheel so as to ensure that the length of the auxiliary network barrier extending out of the main network barrier has the function of allowing personnel to pass.

The invention aims to solve the problem that the combined type net barrier comprises a main barrier frame provided with a power source and a main barrier which is arranged on two sides of the main barrier frame and connected with the main barrier frame through a main barrier driving mechanism, the combined type net barrier comprises the main barrier, the main barrier length compensating mechanism comprises an auxiliary barrier driving device and an auxiliary barrier, the auxiliary barrier driving device comprises a bottom plate, a motor base, a motor, a bearing seat frame, a first chain wheel, a second chain wheel, a chain wheel seat fixing plate and a chain, the bottom plate is fixed at the bottom of the right end of the main barrier, the motor base is fixed with the bottom plate, the motor is fixed with the motor base, the bearing seat frame comprises a front bearing seat frame and a rear bearing seat frame, the front bearing seat frame is fixed with the bottom plate, the rear bearing pedestal and the motor base form an integral structure at the position corresponding to the rear part of the front bearing pedestal, a first chain wheel is rotatably supported between the front bearing pedestal and the rear bearing pedestal and is fixed with a motor shaft of a motor, a second chain wheel is rotatably supported on a chain wheel pedestal fixing plate, the chain wheel pedestal fixing plate is fixed at the bottom of the left end of the main network barrier, one end of a chain is sleeved on the first chain wheel, the other end of the chain is sleeved on the second chain wheel, the chain is connected with a secondary network barrier cross beam at the lower part of the right end of the secondary network barrier, the secondary network barrier is movably arranged in a cavity of the main network barrier, secondary network barrier moving rollers are respectively and pivotally arranged at the front side and the rear side of the bottom of the long edge direction of the secondary network barrier in a spaced state, the secondary network barrier moving rollers and roller guide plates form a rolling pair, and the roller guide plates are fixed with the bottom of the main network barrier in a state parallel to the long edge direction of the main network barrier, and the integral structure is characterized in that: a passing door is arranged on the auxiliary net barrier; a chain transition fixing device is arranged on the chain and at a position corresponding to the auxiliary net barrier cross beam, and the chain is connected with the auxiliary net barrier cross beam through the chain transition fixing device; the bottom plate is fixed with the bottom of the right end of the main network barrier in a state of being parallel to the short side direction of the main network barrier, and the motor is a harmonic speed reduction motor and is fixed with the motor base in a state of being parallel to the short side direction of the main network barrier.

In a specific embodiment of the present invention, the position of the passing door on the secondary barrier is located in the middle of the secondary barrier in the length direction or at one end of the secondary barrier which is away from the main barrier in a state where the secondary barrier is extended outside the main barrier and one side in the height direction of the passing door is pivotally connected to one side of the door frame formed on the main barrier by a passing door hinge, and the other side in the height direction of the passing door is locked or unlocked to the other side of the door frame by a bolt or a release pin, a front bearing frame fixing wing plate is formed on both sides of the bottom of the front bearing frame, the front bearing frame fixing wing plate is fixed to the base plate by a front bearing frame fixing wing plate screw, a front bearing is provided on the upper portion of the front bearing frame, a rear bearing is provided on the upper portion of the rear bearing frame and at a position corresponding to the front bearing, a front journal protruding the surface of the first sprocket is formed in the middle of the side of the first sprocket facing the front bearing frame, a sprocket journal protruding the surface of the first sprocket is formed in the middle of the side of the first sprocket facing the rear bearing frame, and the sprocket is rotatably supported by a motor shaft, and the front journal is rotatably supported by a motor shaft.

In another specific embodiment of the present invention, a shaft key is formed on a motor shaft of the motor, and a journal key groove is formed on the hole wall of the rear journal center hole and the hole wall of the front journal center hole at positions corresponding to each other, and the journal key groove is fixed to the shaft key in a fitting manner.

In another embodiment of the present invention, a front bearing cover is fixed to a side of the front bearing frame facing away from the rear bearing frame and at a position corresponding to the front bearing, a sprocket front journal avoiding hole is formed at a central position of the front bearing cover, a rear bearing cover is fixed to a side of the rear bearing frame facing away from the front bearing frame and at a position corresponding to the rear bearing, and a sprocket rear journal avoiding hole is formed at a central position of the rear bearing cover.

In a further embodiment of the present invention, a pair of bearing bracket coupling fixing plates are fixed between the top portions of the front and rear bearing brackets.

In a further embodiment of the invention, a chain fixing seat hinge is arranged at the bottom of the secondary barrier cross beam of the secondary barrier and at a position corresponding to the chain transition fixing device, and the chain transition fixing device together with the chain is connected with the chain fixing seat hinge.

In a more specific embodiment of the present invention, the chain transition fixing device includes a chain fixing seat and a pair of chain locking blocks, the chain fixing seat has a chain locking cavity, a pin bolt hole is respectively formed in the middle of two sides of the chain fixing seat and at positions corresponding to each other, the pin bolt hole connects the chain fixing seat with the chain fixing seat hinge device arranged at the bottom of the secondary barrier cross beam in an articulated manner, the pair of chain locking blocks are fixed to the chain fixing seat at positions corresponding to two ends of the chain locking cavity, a locking tooth is respectively formed at the bottom of the pair of chain locking blocks, and the chain is locked by the locking tooth in the chain locking cavity.

In a further embodiment of the invention, the chain is a roller chain, and the locking teeth lock the chain in a position corresponding to a roller cavity between two adjacent rollers of the chain.

In a still more specific embodiment of the present invention, lock block fastening screw holes are respectively formed in the wall of each end of the chain lock chamber and at positions corresponding to the pair of chain lock blocks, a lock block fastening screw is provided in each lock block fastening screw hole, a lock block screw hole is provided in each chain lock block, the lock block screw holes correspond to the lock block fastening screw holes when the pair of chain lock blocks are placed in the chain lock chamber, and the lock block fastening screws are inserted into the lock block screw holes and locked by lock nuts screwed to the lock block fastening screws; the cross section of the chain fixing seat is U-shaped.

In yet another specific embodiment of the present invention, the chain fixing seat hinge device includes a pair of pin bolt hinge seats and a pin bolt, the pair of pin bolt hinge seats is fixed to the bottom of the secondary barrier cross beam, a hinge seat bolt hole is respectively formed in the pair of pin bolt hinge seats and at positions corresponding to each other, the chain fixing seat corresponds to between the pair of pin bolt hinge seats, the pin bolt holes correspond to the hinge seat bolt holes, and the pin bolt is inserted into the pin bolt holes and the hinge seat bolt holes and is limited by a pin bolt limiting nut screwed at the end of the pin bolt.

One of the technical effects of the technical scheme provided by the invention is that the auxiliary net barrier is provided with the passing door, so that personnel inside and outside the barrier can conveniently and rapidly pass in an emergency according to needs, and the time is greatly saved; secondly, a chain transition fixing device is arranged on a chain of a structural system of the auxiliary net barrier driving device and at a position corresponding to an auxiliary net barrier cross beam, and the chain is fixed with the auxiliary net barrier cross beam through the chain transition fixing device, so that the lasting and reliable fixing effect of the chain and the auxiliary net barrier can be ensured, and the situation that the chain and the auxiliary net barrier are separated and even damaged in the repeated traction process is avoided; thirdly, because the bottom plate is fixed with the bottom of the right end of the main network barrier in a state of being parallel to the short side direction of the main network barrier, and the motor is changed into a harmonic speed reduction motor and is fixed with the motor base in a state of being parallel to the short side direction of the main network barrier, the distance between the first chain wheel and the second chain wheel can be obviously increased, and the length of the auxiliary network barrier extending out of the main network barrier is ensured.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is a schematic view illustrating an application of the present invention.

Fig. 5 is a detailed configuration diagram of a base plate, a motor base, a motor, a bearing base frame, and a first sprocket of the auxiliary barrier driving apparatus shown in fig. 4.

Fig. 6 is a detailed structural view of the chain transition fixing device shown in fig. 4.

Detailed description of the preferred embodiments

In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are exemplified by the position states shown in fig. 1 to 4, and thus, it should not be understood as a particular limitation to the technical solution provided by the present invention.

Referring to fig. 1 to 4, in fig. 1, a main barrier frame 5 equipped with a power source 51 and one main barrier 1 arranged on both sides of the main barrier frame 5 and connected to the main barrier frame 5 through a main barrier driving mechanism 6 are shown, the main barrier 1 is in a hollow frame-like configuration and has a cavity for accommodating a below-mentioned auxiliary barrier 3, and a main barrier mesh 13 is arranged on one side of the main barrier 1 facing outward in a use state, i.e., on the side facing away from a pipe control area.

Also shown in fig. 1 are primary barrier support frames 15 for supporting the primary barriers 1 and secondary barrier support frames 36 for supporting the secondary barriers 3. Since the main barrier frame 5, the power source 51 disposed on the main barrier frame 5, and the main barrier driving mechanism 6 (the main barrier driving mechanism 6 is connected to the power source hydraulic oil circuit) shown in fig. 1 are all in the prior art, for example, refer to the specifications of CN102146662B, CN102061670B and CN102061671B mentioned in the above background field of the applicant, and more specifically refer to paragraphs 0029 to 0032 of the specification of this patent by taking CN102061670B as an example, so that the applicant does not need to describe any further.

The auxiliary barrier driving device 2 and the auxiliary barrier 3 of the structural system of the main barrier length compensation mechanism are shown, the auxiliary barrier driving device 2 comprises a bottom plate 21, a motor seat 22, a motor 23, a bearing seat frame 24, a first chain wheel 25, a second chain wheel 26, a chain wheel seat fixing plate 27 and a chain 28, the bottom plate 21 is fixed at the bottom of the right end of the main barrier 1, more specifically, between the front beam 11 and the rear beam 12 of the underframe of the main barrier 1, the fixing mode is preferably welding, the motor seat 22 is fixed with the bottom plate 21 through a motor seat fixing screw 221, the motor 23 is fixed with the motor seat 22 through a motor fixing screw 232, the bearing seat frame 24 comprises a front bearing seat frame 241 and a rear bearing seat frame 242, the front bearing seat frame 241 is fixed with the bottom plate 21, the rear bearing seat frame 242 forms an integral structure with the motor seat 22 at a position corresponding to the rear of the front bearing seat frame 241, a first sprocket 25 is rotatably supported between front and rear bearing frames 241, 242 and fixed to a motor shaft 231 of a motor 23, a second sprocket 26 is rotatably supported by a sprocket shaft 261 on a sprocket holder fixing plate 27, the sprocket holder fixing plate 27 is fixed to a bottom of a left end of a main barrier 1, one end of a chain 28 is fitted over the first sprocket 25 and the other end is fitted over the second sprocket 26, and the chain 28 is connected to a sub-barrier cross member 31 at a lower portion of a right end of a sub-barrier 3, the sub-barrier 3 is movably disposed in the cavity of the main barrier 1, sub-barrier moving rollers 32 are pivotally disposed at intervals on front and rear sides of a bottom in a longitudinal direction of the sub-barrier 3, the sub-barrier moving rollers 32 constitute a rolling pair with roller guides 321, and the roller guides 321 are fixed to the bottom of the main barrier 1 in a state parallel to the longitudinal direction of the main barrier 1, the side facing outwards when the auxiliary barrier 3 is in use is provided with an auxiliary barrier net piece 34. In the figure, two roller guide plates 321 are shown, the front roller guide plate 321 is fixed to the longitudinal direction of the side of the chassis front 11 facing the chassis rear beam 12 so that the sub-barrier moving roller 32 located on the front side of the bottom of the sub-barrier 3 forms a rolling pair therewith, and the rear roller guide plate 321 is fixed to the longitudinal direction of the side of the chassis rear beam 12 facing the chassis front beam 11 so that the sub-barrier moving roller 32 located on the rear side of the bottom of the sub-barrier 3 forms a rolling pair therewith.

The technical points of the technical scheme provided by the invention are as follows, with attention being paid to fig. 4 and fig. 1 to 3: a passage door 35 is provided (may be referred to as "installed") on the auxiliary barrier 3; a chain transition fixing device 4 is arranged on the chain 28 and at a position corresponding to the auxiliary barrier cross beam 31, and the chain 28 is connected with the auxiliary barrier cross beam 31 through the chain transition fixing device 4; the bottom plate 21 is fixed to the bottom of the right end of the main barrier 1 in parallel to the short side direction of the main barrier 1, and the motor 23 is a harmonic reduction motor and is also fixed to the motor base 22 in parallel to the short side direction of the main barrier 1.

Continuing with fig. 1 to 4, in the present embodiment and as shown in fig. 1 to 4, the aforementioned access door 35 is provided at an end of the secondary barrier 3 remote from the main barrier 1 in a state of being extended outside the aforementioned cavity of the main barrier 1, but may be provided at a middle portion in the longitudinal direction of the secondary barrier 3. One side in the height direction of the aforementioned passage door 35 is pivotally connected to one side of the door frame 14 formed or opened in the main barrier 1 by a passage door hinge 351, and the middle portion of the other side in the height direction of the passage door 35 is locked or unlocked to the other side of the door frame 14 by a latch or a lock. According to common knowledge, the latch must be secured to the inside of the access door 35 for manipulation by personnel within the barrier, such as military personnel.

Referring to fig. 5 in conjunction with fig. 1 to 4, a front bearing mount fixing wing plate 2411 is formed on both sides of the bottom of the front bearing mount 241 (front and rear sides in a positional state shown in fig. 4 as an example), the front bearing mount fixing wing plate 2411 is fixed to the base plate 21 by a front bearing mount fixing wing plate screw 24111, a front bearing 2412 is provided on the upper portion of the front bearing mount 241, a rear bearing 2421 is provided on the upper portion of the rear bearing mount 242 and at a position corresponding to the front bearing 2412, a sprocket front journal 251 protruding out of a surface of the first sprocket 25 is formed in a middle portion of a side of the first sprocket 25 facing the front bearing mount 241, i.e., a front side of the first sprocket 25 (in a positional state shown in fig. 4), a sprocket front journal 251 protruding out of a surface of the first sprocket 25 is formed on a side of the first sprocket 25 facing the rear bearing mount 242 (in a positional state shown in fig. 4), and a rear side of the first sprocket 25 (in a positional state shown in fig. a position corresponding to the sprocket front bearing mount 242, a center hole 252 of the sprocket 252), and the sprocket front journal 251 is formed in a position corresponding to the sprocket 252, and the sprocket front bearing journal 2411 and the front bearing shaft of the front bearing mount 2412 and the front bearing journal 2 and the sprocket journal 2 is rotatably supported by the front bearing and the front bearing mount 2411 and the front bearing mount 2412.

Referring to fig. 5, a shaft key 2311 is formed on the motor shaft 231 of the motor 23, and a journal key groove 253 is formed on the wall of the rear journal center hole (not shown) and the wall of the front journal center hole 2511 at positions corresponding to each other, and the journal key groove 253 is in key fit with the shaft key 2311.

Preferably, a front bearing cover 2413 is fixed to a side of the front bearing seat frame 241 facing away from the rear bearing seat frame 242, i.e., a front side of the front bearing seat frame 241 and at a position corresponding to the front bearing 2412 by a front bearing cover screw 24132, a sprocket front journal abdicating hole 24131 is formed at a central position of the front bearing cover 2413, a rear bearing cover 2422 is formed at a side of the rear bearing seat frame 242 facing away from the front bearing seat frame 241 and at a position corresponding to the rear bearing 2421 by a rear bearing cover screw 24221, and a sprocket rear journal abdicating hole (not shown) is formed at a central position of the rear bearing cover 2422.

Preferably, a pair of bearing bracket coupling fixing plates 243 are fixed between the top portions of the front and rear bearing brackets 241 and 242, and specifically, the front ends of the pair of bearing bracket coupling fixing plates 243 are fixed to the top portions of the front and rear bearing brackets 241 by coupling fixing plate front screws 2431, respectively, and the rear ends of the pair of bearing bracket coupling fixing plates 243 are fixed to the top portions of the rear bearing brackets 242 by coupling fixing plate rear screws 2432, respectively, at positions corresponding to screw holes 2423 preset to the top portions of the rear bearing brackets 242.

As shown in fig. 4, a chain fixing seat hinge 311 is provided at the bottom of the auxiliary barrier cross beam 31 of the auxiliary barrier 3 and at a position corresponding to the chain transition fixing device 4, and the chain transition fixing device 4 is connected to the chain fixing seat hinge 311 together with the chain 28.

Referring to fig. 6 in conjunction with fig. 4, the chain transition fixing device 4 includes a chain fixing seat 41 and a pair of chain locking blocks 42, the chain fixing seat 41 has a chain locking cavity 411, a pin bolt hole 412 is respectively formed in the middle of the two side walls of the chain fixing seat 41, i.e. the front and rear side walls (taking the position state shown in fig. 4 as an example) and at the corresponding position, the chain fixing seat 41 is hinged to the chain fixing seat hinge device 311 disposed at the bottom of the auxiliary barrier cross beam 31 by the pin bolt hole 412, the pair of chain locking blocks 42 are fixed to the chain fixing seat 41 at the position corresponding to the two ends of the chain locking cavity 411, a locking tooth 421 is respectively formed at the bottom of the pair of chain locking blocks 42, and the chain 28 is locked by the locking tooth 421 in the chain locking cavity 411.

As shown in fig. 6, the chain 28 is a roller chain, and the locking tooth 421 locks the chain 28 at a position corresponding to the roller cavity 281 between two adjacent rollers of the chain 28, that is, the locking tooth 421 protrudes into the roller cavity 281.

Still referring to fig. 6, lock block fastening screw holes 413 are formed in the wall of each of the two end walls of the chain lock chamber 411 and at positions corresponding to the pair of chain lock blocks 42, a lock block fastening screw 4131 is provided in each of the lock block fastening screw holes 413, a lock block screw hole 422 is provided in each of the pair of chain lock blocks 42, and when the pair of chain lock blocks 42 is inserted into the chain lock chamber 411, the lock block screw hole 422 corresponds to the lock block fastening screw hole 413, and is inserted into the lock block screw hole 422 by the lock block fastening screw 4131 and locked by a lock nut 41311 screwed to the lock block fastening screw 4131; the cross section of the chain fixing seat 41 is U-shaped.

Continuing to refer to fig. 1, the aforementioned chain fixing seat hinge device 311 includes a pair of pin bolt hinge seats 3111 and a pin bolt 3112, the pair of pin bolt hinge seats 3111 is fixed to the bottom of the aforementioned sub barrier cross member 31, a hinge seat bolt hole 31111 is respectively formed on the pair of pin bolt hinge seats 3111 and at positions corresponding to each other, the aforementioned chain fixing seat 41 corresponds to between the pair of pin bolt hinge seats 3111, and the aforementioned pin bolt hole 412 corresponds to the hinge seat bolt hole 31111, and the pin bolt 3112 is inserted into the pin bolt hole 412 and the hinge seat bolt hole 31111 and is defined by a pin bolt defining nut 31121 rotatably fitted to the end of the pin bolt 3112.

When the auxiliary barrier 3 is to be extended out of the cavity of the main barrier 1, i.e. to the left in the position state shown in fig. 4, then the motor 23 is operated, the motor shaft 231 drives the first sprocket 25, the chain 28 drives the second sprocket 26, the chain 28 is locked in the chain locking cavity 411 of the chain fixing seat 41 by the locking teeth 421 of the pair of chain locking blocks 42, the chain fixing seat 41 is hinged to the chain fixing seat hinge device 311 through the pin bolt hole 412, and the chain fixing seat hinge device 311 is fixed to the downward side of the auxiliary barrier cross beam 31 of the auxiliary barrier 3, so that the auxiliary barrier 3 can be moved out of the cavity of the main barrier 1, i.e. to the left under the movement of the chain 28. When the auxiliary barrier 3 is to be restored into the cavity of the main barrier 1, i.e. moved to the right, then the aforesaid motor 23 is operated in reverse, the direction of movement of the chain 28 being opposite to that described above, until the auxiliary barrier 3 is brought into the cavity.

When the situation requires an in-barrier person, such as a police officer or an out-of-barrier person, to walk into the barrier, then the lock on the access door 35 may be released by releasing the latch or lock, and vice versa.

Since the details not mentioned in the present invention, such as the relationship between the main barrier and the main barrier frame not shown in the figures, the power source of the motor 23, and the function of the climbing wheel set 33 shown at the left end of the auxiliary barrier in fig. 1, etc., belong to the prior art and are described in detail in CN102146662B, CN102061670B and CN102061671B mentioned by the applicant, the applicant will not repeat the description.

In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.

Claims (7)

1. A main barrier length compensation mechanism of a combined type barrier with a function of allowing people to pass comprises a main barrier frame (5) provided with a power source (51) and main barriers (1) arranged on two sides of the main barrier frame (5) and connected with the main barrier frame (5) through a main barrier driving mechanism (6), the combined type barrier comprises the main barrier (1), the main barrier length compensation mechanism comprises an auxiliary barrier driving device (2) and an auxiliary barrier (3), the auxiliary barrier driving device (2) comprises a bottom plate (21), a motor base (22), a motor (23), a bearing seat frame (24), a first chain wheel (25), a second chain wheel (26), a chain wheel base fixing plate (27) and a chain (28), the bottom plate (21) is fixed at the bottom of the right end of the main barrier (1), the motor base (22) is fixed with the bottom plate (21), the motor (23) is fixed with the motor base (22), the bearing seat frame (24) comprises a front bearing seat frame (241) and a rear bearing seat frame (242), the front bearing seat frame (241) is fixed with the bottom plate (21), the rear bearing seat frame (242) and the motor base (22) form an integrated structure at a position corresponding to the rear of the front bearing seat frame (241), and the first chain wheel (25) is rotatably supported on the front and rear bearing seat frames (241, 242, 242 And is fixed with the motor shaft (231) of the motor (23), the second chain wheel (26) is supported on the chain wheel seat fixing plate (27) in a rotating way, the chain wheel seat fixing plate (27) is fixed at the bottom of the left end of the main barrier (1), one end of the chain (28) is sleeved on the first chain wheel (25), the other end is sleeved on the second chain wheel (26), the chain (28) is connected with the auxiliary barrier cross beam (31) at the lower part of the right end of the auxiliary barrier (3), the auxiliary barrier (3) is movably arranged in the cavity of the main barrier (1), the front side and the rear side of the bottom of the long edge direction of the auxiliary barrier (3) are respectively provided with an auxiliary barrier moving roller (32) in a pivoted way in a spaced state, the auxiliary barrier moving roller (32) and a roller guide plate (321) form a rolling pair, and the roller guide plate (321) is fixed with the bottom of the main barrier (1) in a state parallel to the long edge direction of the main barrier (1), the roller guide plate is characterized in that: a passing door (35) is arranged on the auxiliary net barrier (3); a chain transition fixing device (4) is arranged on the chain (28) and at a position corresponding to the auxiliary barrier cross beam (31), and the chain (28) is connected with the auxiliary barrier cross beam (31) through the chain transition fixing device (4); the bottom plate (21) is fixed to the bottom of the right end of the main barrier (1) in a state of being parallel to the short side direction of the main barrier (1), and the motor (23) is a harmonic speed reduction motor and is also fixed to the motor base (22) in a state of being parallel to the short side direction of the main barrier (1); a chain fixing seat hinge device (311) is arranged at the bottom of a secondary net barrier beam (31) of the secondary net barrier (3) and at a position corresponding to the chain transition fixing device (4), and the chain transition fixing device (4) and the chain (28) are connected with the chain fixing seat hinge device (311); the chain transition fixing device (4) comprises a chain fixing seat (41) and a pair of chain locking blocks (42), the chain fixing seat (41) is provided with a chain locking cavity (411), the middle parts of two sides of the chain fixing seat (41) are respectively provided with a pin bolt hole (412) at the corresponding position, the chain fixing seat (41) is hinged with the chain fixing seat hinging device (311) arranged at the bottom of the auxiliary net barrier cross beam (31) through the pin bolt hole (412), the pair of chain locking blocks (42) are fixed with the chain fixing seat (41) at the position corresponding to two ends of the chain locking cavity (411), the bottoms of the pair of chain locking blocks (42) are respectively provided with a locking tooth (421), and the chain (28) is locked in the chain locking cavity (411) through the locking tooth (421); locking block fastening screw holes (413) are respectively formed in the wall of the two end cavities of the chain locking cavity (411) and at positions corresponding to the pair of chain locking blocks (42), locking block fastening screws (4131) are arranged on the locking block fastening screw holes (413), locking block screw holes (422) are respectively formed in the pair of chain locking blocks (42), when the pair of chain locking blocks (42) are placed in the chain locking cavity (411), the locking block screw holes (422) correspond to the locking block fastening screw holes (413), and the locking block fastening screws (4131) are inserted into the locking block screw holes (422) and locked by locking nuts (41311) screwed on the locking block fastening screws (4131); the cross section of the chain fixing seat (41) is U-shaped.

2. The main barrier length compensating mechanism of the combined barrier with a function of providing passage of persons according to claim 1, characterized in that the position of the passage door (35) on the auxiliary barrier (3) is located at the middle of the length direction of the auxiliary barrier (3) or at the end of the auxiliary barrier (3) far from the main barrier (1) in the state of extending to the outside of the main barrier (1), and one side of the height direction of the passage door (35) is pivotally connected with one side of the door frame (14) formed on the main barrier (1) through a passage door hinge (351), and the other side of the height direction of the passage door (35) is locked or unlocked with the other side of the door frame (14) through a latch or a lock, a front bearing seat frame fixing wing plate (2411) is respectively formed at two sides of the bottom of the front bearing seat frame (241), the front bearing seat frame fixing wing plate (2411) is fixed with the bottom plate (21) through a front bearing seat frame fixing wing plate screw (24111), a front bearing (2412) is arranged at the upper part of the front bearing seat frame (241), a rear bearing (2421) is arranged at the upper part of the rear bearing seat frame (242) and at the position corresponding to the front bearing (2412), a chain wheel front journal (251) protruding out of the surface of the first chain wheel (25) is formed at the middle part of one side of the first chain wheel (25) facing the front bearing seat frame (241) and at the middle part of one side of the first chain wheel (25) facing the rear bearing seat frame (242) and corresponding to the chain wheel The front journal (251) is positioned to form a rear sprocket journal (252) that also protrudes beyond the surface of the first sprocket (25), the front sprocket journal (251) is rotatably supported on the front bearing (2412), the rear sprocket journal (252) is rotatably supported on the rear bearing (2421), and the motor shaft (231) of the motor (23) extends through the rear journal center hole of the rear sprocket journal (252) to the front journal center hole (2511) of the front sprocket journal (251) and is simultaneously fixed to the rear sprocket journal (252) and the front sprocket journal (251).

3. The main barrier length compensation mechanism of a combined type barrier for personnel passage according to claim 2, wherein a shaft key (2311) is formed on a motor shaft (231) of the motor (23), and a journal key groove (253) is respectively formed on the hole walls of the rear journal center hole and the front journal center hole (2511) at positions corresponding to each other, and the journal key groove (253) is in key fit with the shaft key (2311).

4. The main barrier length compensation mechanism of a modular barrier with a function of allowing people to pass through according to claim 2, wherein a front bearing cover (2413) is fixed on a side of the front bearing seat frame (241) facing away from the rear bearing seat frame (242) and at a position corresponding to the front bearing (2412), a sprocket front journal abdicating hole (24131) is formed at a central position of the front bearing cover (2413), a rear bearing cover (2422) is formed on a side of the rear bearing seat frame (242) facing away from the front bearing seat frame (241) and at a position corresponding to the rear bearing (2421), and a sprocket rear journal abdicating hole is formed at a central position of the rear bearing cover (2422).

5. The main barrier length compensation mechanism of the combined barrier with personnel access function as claimed in claim 2 or 4, wherein a pair of bearing frame connecting fixing plates (243) are fixed between the top of the front bearing frame (241) and the top of the rear bearing frame (242).

6. The main barrier length compensating mechanism of a modular barrier for passage of persons as claimed in claim 1, wherein the chain (28) is a roller chain, and the locking teeth (421) lock the chain (28) at a position corresponding to the roller cavities (281) between two adjacent rollers of the chain (28).

7. The main barrier length compensation mechanism for a modular barrier with a function of allowing passage of persons as claimed in claim 1, wherein said chain fixing seat hinge means (311) comprises a pair of pin bolt hinge seats (3111) and a pin bolt (3112), a pair of pin bolt hinge seats (3111) is fixed to the bottom of said sub barrier beam (31), a hinge seat bolt hole (31111) is respectively formed in the pair of pin bolt hinge seats (3111) at positions corresponding to each other, said chain fixing seat (41) corresponds to between the pair of pin bolt hinge seats (3111), and said pin bolt hole (412) corresponds to the hinge seat bolt hole (31111), and the pin bolt (3112) is inserted into the pin bolt hole (412) and the hinge seat bolt hole (31111) and is defined by a pin bolt defining nut (31121) rotatably formed at the end of the pin bolt (3112).

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