Police on-duty anti-falling device

Abstract

The invention relates to police on-duty anti-falling equipment. The police on-duty anti-falling equipment comprises a bearing bandage, a back plate, a rear supporting rod and a front supporting rod; the bearing bandage is mounted on the front side of the back plate; a rear supporting rod support, a front supporting rod support, a front supporting rod locking and clamping structure and a rear supporting rod locking and clamping structure are installed on the rear side of the back plate. The invention has the following beneficial effects: the support rod is of a telescopic structure and is convenient to store; the unfolded supporting rods form a stable triangular structure, the human body can be effectively prevented from falling down, and the upright state of the human body is kept. The supporting rod adopts the gas generator as a power source, so that the supporting rod can be ejected instantly, ineffective supporting caused by time delay is reduced, and the equipment safety is guaranteed; a plurality of gas generators are integrated in the gas generator integration box, so that the equipment can be repeatedly used; the supporting rods are made of carbon fibers, so that the weight of the equipment is reduced; the supporting rod is of a three-stage telescopic structure, all the stages of telescopic structures are connected through a locking and unlocking structure, and the locking and unlocking structure is a self-locking structure.

Description

Technical Field

[0001] The invention belongs to the field of police equipment, and in particular relates to a police on-duty anti-fall equipment. Background Art

[0002] Explosion-proof police officers often fall due to external forces while performing high-risk missions. Such falls can not only directly cause physical injuries such as fractures and head injuries, but can also lead to secondary explosions due to equipment damage or disability. Existing technologies embed impact-resistant gel into the joints of explosion-proof suits to absorb impact and reduce the risk of hip and lumbar fractures. Alternatively, inflatable fall-proof components sense a fall and inflate before the user hits the ground, cushioning the contact between the user and the ground and mitigating spinal and head injuries from backward falls.

[0003] However, such protective equipment is only used to cushion the contact between the user and the ground, and cannot support the user to stay upright when the user is about to fall. Therefore, it is urgent to provide a device that can protect the user from falling. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a police duty anti-fall equipment.

[0005] This police duty anti-fall equipment includes: a carrying strap, a backboard, a rear support rod and a front support rod; the carrying strap is installed on the front side of the backboard; the rear side of the backboard is equipped with a rear support rod bracket, a front support rod bracket, a front support rod locking and fixing structure and a rear support rod locking and fixing structure, and the rear support rod and the front support rod bracket are respectively installed on the middle and left and right sides of the rear side of the backboard through the rear support rod bracket and the rear support rod locking and fixing structure, the front support rod bracket and the front support rod locking and fixing structure; the rear support rod includes a rear support rod level 1, a rear support rod level 2 and a rear support rod level 3 from top to bottom. The rear support rod has three levels; the front support rod includes the front support rod level one, the front support rod level two and the front support rod level three from top to bottom; the back panel is integrated with a circuit board and a battery, and a gas generator integrated box is installed on the rear side of the back panel. A gas generator is installed in the gas generator integrated box, and an aviation plug is connected to the top of the gas generator integrated box, and the other end of the aviation plug is connected to the battery; the central air outlet at the bottom of the gas generator integrated box is connected to the top of the first level of the rear support rod, and the air outlets on both sides of the bottom of the gas generator integrated box are connected to the top of the first level of the front support rod through an air guide hose.

[0006] Preferably, front support rod brackets are provided with front support rod bracket rotating shafts at both ends of the front support rod bracket; the inner side of the top of the first level of the front support rod is connected to the front support rod bracket through the front support rod bracket rotating shaft, and the other end of the front support rod bracket is connected to both sides of the middle part of the rear side of the back plate through the front support rod bracket rotating shaft; the middle part of the first level of the front support rod is connected to the front support rod bracket through the front support rod bracket rotating shaft, and the other end of the front support rod bracket is connected to both sides of the bottom part of the rear side of the back plate through the front support rod bracket rotating shaft.

[0007] Preferably, the front support rod locking and fixing structure includes a front support rod upper locking and fixing structure and a front support rod lower locking and fixing structure; the front support rod lower locking and fixing structure includes a front support rod latch, a front support rod latch placement slot and a front support rod locking wrench; the front support rod latch is installed between the front support rod first level and the front support rod bracket connection position, the front support rod latch placement slots are arranged on the outside of both sides of the bottom of the back plate, the front support rod latch placement slots are rotatably connected with the front support rod locking wrench, and the front support rod latch is fixedly connected in the front support rod latch placement slots; the front support rod upper locking and fixing structure is arranged at the top of the front support rod and includes a front support rod locking wrench and a rotary lock; the front support rod top is provided with a front support rod positioning hole, and the rotary lock is arranged on the side wall of the front support rod bracket; the front support rod bracket is provided with a front support rod locking wrench on the other side of the rotary lock, and the rotary lock passes through and is fixed in the front support rod positioning hole.

[0008] Preferably, the rear support rod locking and fixing structure includes a sliding ring support, a sliding ring support locking hole and a rear support rod latch; a rear support rod rotating shaft is provided on the upper rear side of the back plate, and the rear support rod rotating shaft is connected to both sides of the gas generator integrated box; the rear support rod first-level sliding connection is connected to the sliding ring support, and a rear support rod bracket rotating shaft 1 and a rear support rod bracket rotating shaft 2 are provided on both sides of the rear support rod bracket; the sliding ring support is connected to the rear support rod bracket through the rear support rod bracket rotating shaft 1, and the other end of the rear support rod bracket is connected to the bottom of the rear side of the back plate through the rear support rod bracket rotating shaft 2; the sliding ring support locking hole and the rear support rod latch are provided at the connection between the sliding ring support and the rear support rod bracket, the sliding ring support locking hole is provided on the side wall of the sliding ring support, the rear support rod latch is provided at the end of the rear support rod bracket, and the rear support rod latch cooperates and extends into the sliding ring support locking hole.

[0009] Preferably, a locking and unlocking structure 1 is connected between the first and second levels of the rear support rod, and between the first and second levels of the front support rod; a locking and unlocking structure 2 is connected between the second and third levels of the rear support rod, and between the second and third levels of the front support rod; the locking and unlocking structure 1 and the locking and unlocking structure 2 are self-locking structures; the rear support rod and the front support rod are hollow structures, the interior of the locking and unlocking structure 1 is a through structure, and the interior of the locking and unlocking structure 2 is a partition structure.

[0010] Preferably, the front support rod and the rear support rod are made of carbon fiber; the bottoms of the third level rear support rod and the third level front support rod are rubber heads.

[0011] The working method of this police duty fall prevention equipment includes the following steps:

[0012] Step 1: The sensor inside the circuit board determines the human body posture. When the human body is about to fall, the circuit board controls the aviation plug to supply power to the gas generator;

[0013] Step 2: After power is supplied to a single gas generator in the gas generator integrated box, gas is discharged, and the gas enters the central air outlet and the air outlet holes on both sides of the bottom of the gas generator integrated box;

[0014] Step 3: After the gas enters the rear support rod level 1 and the front support rod level 1, the rear support rod level 2 and the rear support rod level 3 pop out from the rear support rod level 1, and the front support rod level 2 and the front support rod level 3 pop out from the front support rod level 1; the bottoms of the rear support rod level 3 and the front support rod level 3 are supported on the ground;

[0015] Step 4: When no further support is needed, retract the rear support rod level 2 and level 3 into the rear support rod level 1, and retract the front support rod level 2 and level 3 into the front support rod level 1;

[0016] Step 5. When using again, repeat steps 1 to 4 until you no longer need to wear the police duty fall prevention equipment.

[0017] Preferably, when the police duty anti-fall equipment is in the storage state, before step one, the folded and stored front support rod and rear support rod are unfolded, the front support rod bracket and the rear support rod bracket are unfolded, and the front support rod locking and fixing structure and the rear support rod locking and fixing structure respectively fix the front support rod bracket and the rear support rod bracket to the designed position; the carrying strap binds the police duty anti-fall equipment to the human body, and the police duty anti-fall equipment enters the police duty anti-fall equipment ready state, and the sensor in the circuit board judges the human body posture in real time.

[0018] Preferably, when the police duty anti-fall equipment needs to be stored, after step five, untie the police duty anti-fall equipment, unlock the front support rod locking structure and the rear support rod locking structure, fold the front support rod bracket and the rear support rod bracket to the rear side of the back panel, and the front support rod bracket and the rear support rod bracket drive the front support rod and the rear support rod to be stored on the rear side of the back panel.

[0019] Preferably, in step three, a locking and unlocking structure 1 is connected between the first and second levels of the rear support rod, and between the first and second levels of the front support rod; a locking and unlocking structure 2 is connected between the second and third levels of the rear support rod, and between the second and third levels of the front support rod; the rear support rod and the front support rod are hollow structures, the interior of the locking and unlocking structure 1 is a through structure, and the interior of the locking and unlocking structure 2 is a partition structure; when the gas enters the second level of the rear support rod and the second level of the front support rod, it drives the second level of the rear support rod and the third level of the rear support rod to pop out from the first level of the rear support rod, and the second level of the front support rod and the third level of the front support rod to pop out from the first level of the front support rod.

[0020] The beneficial effects of the present invention are:

[0021] 1) The front support rod and the rear support rod of the present invention are installed on the rear side of the backboard. The front support rod and the rear support rod are telescopic structures, which are convenient for installation and storage. The unfolded front support rod and the rear support rod form a stable triangular structure, which can effectively prevent the human body from falling and keep the human body upright.

[0022] 2) The front support rod and the rear support rod of the present invention use a gas generator as a power source, which can make the front support rod and the rear support rod pop out instantly, reduce delay, make support faster, reduce invalid support caused by delay, and ensure equipment safety.

[0023] 3) The gas generator integrated box of the present invention integrates several gas generators. Only one gas generator needs to be used each time, so that the equipment can be reused many times without frequent replacement of consumables, while concentrating the power source.

[0024] 4) The front support rod and the rear support rod of the present invention are made of carbon fiber, which reduces the weight of the equipment, reduces the weight of the user's shoulder strap, and reduces the burden of use.

[0025] 5) The front support rod and the rear support rod of the present invention can be stored at the rear side of the backboard, which reduces the volume of the equipment and facilitates storage and carrying.

[0026] 6) The front support rod and the rear support rod of the present invention adopt a three-stage telescopic structure, and each stage of the telescopic structure is connected by a locking and unlocking structure. The locking and unlocking structure is a self-locking structure. The length of the front support rod and the rear support rod can be automatically locked after being extended, so that the front support rod and the rear support rod can play a normal supporting role.

[0027] 7) The locking and fixing structure of the present invention locks and fixes the front support rod and the rear support rod at a designed angle when the police duty anti-fall equipment is in the ready form, so that the front support rod and the rear support rod can form a stable triangular support after being unfolded, playing a role of limiting and fixing; when the police duty anti-fall equipment is in the folded form, the front support rod and the rear support rod are unlocked and stored to a suitable volume, playing a role of storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the fully deployed police duty fall prevention equipment;

[0029] Figure 2 This is a schematic diagram of the preparatory state of police duty fall prevention equipment;

[0030] Figure 3 This is a schematic diagram of the folded form of the police duty fall prevention equipment;

[0031] Figure 4 This is a schematic diagram of the connection structure of the foldable mechanism of the police duty anti-fall equipment;

[0032] Figure 5 This is a schematic diagram of the foldable mechanism of police duty fall prevention equipment;

[0033] Figure 6a This is a preparation diagram for the latch of the locking structure at the lower part of the front support rod;

[0034] Figure 6b This is a diagram of the insertion of the latch of the locking structure at the lower part of the front support rod;

[0035] Figure 6c This is a diagram of the latch fixing of the locking structure at the lower part of the front support rod;

[0036] Figure 7a This is the preparation diagram for the lock of the locking structure on the upper part of the front support rod;

[0037] Figure 7b This is a diagram of the insertion of the rotary lock of the locking structure on the upper part of the front support rod;

[0038] Figure 7c This is a diagram of the lock and fastening structure of the upper part of the front support rod;

[0039] Figure 8a This is a diagram of pulling out the latch of the rear support rod locking structure;

[0040] Figure 8a-1 yes Figure 8a A partial enlarged cross-sectional view of the middle A part;

[0041] Figure 8b This is a diagram of unlocking the latch of the rear support rod locking structure;

[0042] Figure 8b-1 yes Figure 8b A partial enlarged cross-sectional view of the middle B section;

[0043] Figure 8c This is a diagram of the storage form of the rear support rod locking and fixing structure;

[0044] Figure 9 This is a workflow diagram for police duty anti-fall equipment.

[0045] Explanation of the reference numerals in the accompanying drawings: backpack strap 1, backboard 2, rear support rod bracket 3, front support rod bracket 4, aviation plug 5, gas generator integrated box 6, air guide hose 7, sliding ring support 8, rear support rod level 1 9, locking and unlocking structure one 10, rear support rod level 2 11, locking and unlocking structure two 12, rear support rod level 3 13, rubber head 14, front support rod bracket shaft 15, rear support rod shaft 17, rear support rod bracket shaft one 19, front support rod level 1 20, front support rod pin 32, front support rod pin placement slot 33, front support rod locking wrench 34, front support rod positioning hole 35, rotary lock 36, rear support rod pin 37, sliding ring support locking hole 38, rear support rod bracket shaft two 39. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the following examples. The following examples are provided only to facilitate understanding of the present invention. It should be noted that, without departing from the principles of the present invention, it is possible for a person skilled in the art to make various modifications to the present invention, and such improvements and modifications fall within the scope of the claims of the present invention.

[0047] Example 1

[0048] As an embodiment, a police duty anti-fall equipment is proposed, such as Figure 1-8c As shown, it includes: a carrying strap 1, a backboard 2, a rear support rod and a front support rod; the carrying strap 1 is installed on the front side of the backboard 2, and is used to tie the police duty anti-fall equipment to the person; the rear side of the backboard 2 is installed with a rear support rod bracket 3, a front support rod bracket 4, a front support rod locking and fixing structure and a rear support rod locking and fixing structure, and the rear support rod and the front support rod are respectively installed on the middle and left and right sides of the rear side of the backboard 2 through the rear support rod bracket 3 and the rear support rod locking and fixing structure, the front support rod bracket 4 and the front support rod locking and fixing structure; the rear support rod includes a rear support rod level 1 9, a rear support rod level 2 11 and a rear support rod level 3 13 from top to bottom; the front support rod includes a front support rod level 1 20, a front support rod level 2 and The front support rod has three levels; the back panel 2 is integrated with a circuit board and a battery, and the circuit board has a built-in gyroscope to calculate the body movement and posture of the person; a gas generator integrated box 6 is installed on the rear side of the back panel 2, and 10 gas generators are arranged in the gas generator integrated box 6, so that the police anti-fall equipment on duty can be reused many times without replacing the gas generator consumables. Each time it pops out, only one gas generator needs to be exploded to realize the pop-up of the rear support rod and the front support rod; the top of the gas generator integrated box 6 is connected to an aviation plug 5, and the other end of the aviation plug 5 is connected to the battery; the bottom center of the gas generator integrated box 6 is connected to the top of the first level 9 of the rear support rod, and the two sides of the bottom of the gas generator integrated box 6 are connected to the top of the first level 20 of the front support rod through the gas guide hose 7.

[0049] The front support rod and the rear support rod are made of carbon fiber, and the back plate 2 is made of nylon material, which ensures the structural strength while making the police duty anti-fall equipment lighter.

[0050] like Figure 4 and Figure 5 As shown, front support rod bracket 4 is provided with front support rod bracket rotating shaft 15 at both ends; the inner side of the top of the front support rod first level 20 is connected to the front support rod bracket 4 through the front support rod bracket rotating shaft 15, and the other end of the front support rod bracket 4 is connected to both sides of the middle part of the rear side of the back plate 2 through the front support rod bracket rotating shaft 15; the middle part of the front support rod first level 20 is connected to the front support rod bracket 4 through the front support rod bracket rotating shaft 15, and the other end of the front support rod bracket 4 is connected to both sides of the bottom part of the rear side of the back plate 2 through the front support rod bracket rotating shaft 15; the flexible rotation of the front support rod first level 20 is realized through the front support rod bracket rotating shaft 15.

[0051] Example 2

[0052] As another embodiment, this embodiment 2 proposes a more specific anti-fall equipment for police duty based on the embodiment 1.

[0053] like Figure 1 、 Figure 8a-8c As shown, the rear support rod locking and fixing structure includes a sliding ring support 8, a sliding ring support locking hole 38 and a rear support rod latch 37; a rear support rod rotating shaft 17 is provided on the upper rear side of the back plate 2, and the rear support rod rotating shaft 17 is connected to both sides of the gas generator integrated box 6; the rear support rod level 1 9 is slidably connected to the sliding ring support 8, and a rear support rod bracket rotating shaft 19 and a rear support rod bracket rotating shaft 2 39 are provided on both sides of the rear support rod bracket 3; the sliding ring support 8 is connected to the rear support rod bracket rotating shaft 1 through the rear support rod bracket rotating shaft 1 19 is connected to the rear support rod bracket 3, and the other end of the rear support rod bracket 3 is connected to the bottom of the rear side of the back plate 2 through the rear support rod bracket shaft 2 39; the sliding ring support locking hole 38 and the rear support rod latch 37 are provided at the connection between the sliding ring support 8 and the rear support rod bracket 3, the sliding ring support locking hole 38 is provided on the side wall of the sliding ring support 8, the rear support rod latch 37 is provided at the end of the rear support rod bracket 3, and the rear support rod latch 37 cooperates and extends into the sliding ring support locking hole 38; Figure 6a-Figure 7cAs shown, the front support rod locking and fixing structure includes a front support rod upper locking and fixing structure and a front support rod lower locking and fixing structure; the front support rod lower locking and fixing structure includes a front support rod latch 32, a front support rod latch placement slot 33 and a front support rod locking wrench 34; the front support rod latch 32 is installed between the front support rod first level 20 and the front support rod bracket 4 connection position, the front support rod latch placement slot 33 is provided on both sides of the bottom of the back plate 2, and the front support rod latch placement slot 33 is rotatably connected with the front support rod The support rod locking wrench 34 and the front support rod latch 32 are fixedly connected in the front support rod latch placement groove 33; the front support rod upper locking and fixing structure is provided at the top of the front support rod and includes a front support rod locking wrench 34 and a rotary lock 36; the front support rod top is provided with a front support rod positioning hole 35, and the rotary lock 36 is provided on the side wall of the front support rod bracket 4; the other side of the front support rod bracket 4 with the rotary lock 36 is rotatably connected to the front support rod locking wrench 34, and the rotary lock 36 passes through and is fixed in the front support rod positioning hole 35;

[0054] When the police duty anti-fall equipment is in the ready form, the locking and fixing structure locks and fixes the front support rod and the rear support rod at the designed angle, so that the front support rod and the rear support rod can form a stable triangular support when unfolded, playing a role of limiting and fixing; when the police duty anti-fall equipment is in the folded form, the front support rod and the rear support rod are unlocked and stored to a suitable volume, playing a role of storage.

[0055] like Figure 1 As shown, a locking and unlocking structure 10 is connected between the rear support rod level 1 9 and the rear support rod level 2 11, and between the front support rod level 1 20 and the front support rod level 2; a locking and unlocking structure 2 12 is connected between the rear support rod level 2 11 and the rear support rod level 3 13, and between the front support rod level 2 and the front support rod level 3; the locking and unlocking structure 10 and the locking and unlocking structure 2 12 are self-locking structures; the rear support rod and the front support rod are hollow structures, and the interior of the locking and unlocking structure 10 is a through structure, and the gas generated by the gas generator can flow from the rear support rod level 1 9 into the rear support rod level 2 11, and from the front support rod level 1 20 into the front support rod level 2; the locking and unlocking structure 2 12 is a partition structure, and the gas generated by the gas generator cannot flow from the rear support rod level 2 11 into the rear support rod level 3 13, or from the front support rod level 2 into the front support rod level 3.

[0056] like Figure 1 As shown, the bottom of the rear support rod 13 and the front support rod are rubber heads 14, which are designed to protect the bottom edges of the rear support rod 13 and the front support rod to increase friction with the ground.

[0057] It should be noted that the parts in this embodiment that are the same or similar to those in the first embodiment can be referenced to each other and will not be described in detail in this application.

[0058] Example 3

[0059] As another embodiment, this embodiment 3 proposes, based on the embodiment 2, a working method of a police duty anti-fall equipment, such as Figure 1-9 As shown, the following steps are included:

[0060] Step 1: The sensor in the circuit board determines the posture of the human body. When the human body is about to fall, the circuit board controls the aviation plug 5 to supply power to the gas generator. Specifically, when the police anti-fall equipment is in the storage state, before step 1, the folded front support rod and the rear support rod are unfolded, the front support rod bracket 4 and the rear support rod bracket 3 are unfolded, and the front support rod locking and fixing structures and the rear support rod locking and fixing structures respectively fix the front support rod bracket 4 and the rear support rod bracket 3 to the designed positions; the carrying strap 1 is used to tie the police anti-fall equipment to the human body.

[0061] Further, if Figure 4 、 5 6a-6c, first unlock the front support rod locking wrench 34 of the front support rod bracket 4 connected to the inner side of the top of the front support rod level 20, and unlock the rotary lock 36 through the front support rod locking wrench 34; the front support rod bracket 4 connected to the inner side of the top of the front support rod level 20 and the front support rod level 20 can be flexibly rotated through the front support rod bracket shaft 15; Figure 6a and Figure 6b As shown, the front support rod level 20 is then rotated to a suitable position, and the front support rod latch 32 is placed in the front support rod latch placement slot 33; Figure 6c As shown, turn the front support rod locking wrench 34 to secure the front support rod latch 32 in the front support rod latch placement slot 33;

[0062] Further, if Figure 4 、 5 7a-7c, after the locking structure of the lower portion of the front support rod is fixed, the locking structure of the upper portion of the front support rod is fixed, as shown in FIG. Figure 7a As shown, the front support rod locking wrench 34 of the front support rod bracket 4 connected to the inner side of the top of the front support rod level 20 is in the unlocked state; Figure 7b As shown, rotate the front support rod level 20 so that the front support rod positioning hole 35 and the rotary lock 36 are connected, and the rotary lock 36 passes through the front support rod positioning hole 35 and is fixed in place; Figure 7c As shown, the front support rod locking wrench 34 is rotated to lock the rotary lock 36 through the front support rod locking wrench 34;

[0063] Further, if Figure 4 、 5 As shown in 8a-8c, after the locking structure of the upper portion of the front support rod is fixed, the locking structure of the rear support rod is fixed; Figure 8a and Figure 8bAs shown, along Figure 8b Pull out the sliding ring support 8 in the opposite direction of the arrow. After pulling it out to the designed position, Figure 8a Push the rear support rod latch 37 into the sliding ring support locking hole 38 in the opposite direction of the arrow;

[0064] like Figure 2 As shown, this is the ready state of the police duty anti-fall equipment;

[0065] Step 2: After power is supplied to a single gas generator in the gas generator integrated box 6, gas is discharged, and the gas enters the central gas outlet hole and the gas outlet holes on both sides of the bottom of the gas generator integrated box 6;

[0066] When the gas enters the rear support rod level 11 and the front support rod level 20, the rear support rod level 21 and the rear support rod level 3 13 pop out from the rear support rod level 19, and the front support rod level 2 and the front support rod level 3 pop out from the front support rod level 10; the rear support rod level 3 and the front support rod level 3 bottom are supported on the ground; specifically, the rear support rod level 10 and the rear support rod level 2 11, the front support rod level 10 and the front support rod level 2 are all connected with the locking and unlocking structure 10; the rear support rod level 11 and the rear support rod level 3 13, the front support rod level 2 and the front support rod level 3 are all connected with the locking and unlocking structure 2 12; the rear support rod and the front support rod are hollow structures, the interior of the locking and unlocking structure 10 is a through structure, and the interior of the locking and unlocking structure 2 12 is a partition structure; when the gas enters the rear support rod level 11 and the front support rod level 2, it drives the rear support rod level 2 11 and the rear support rod level 3 13 to pop out from the rear support rod level 19, and the front support rod level 2 and the front support rod level 3 to pop out from the front support rod level 10;

[0067] Specifically, the interior of the locking and unlocking structure 10 is a through structure, and the gas generated by the gas generator can flow from the rear support rod level 10 9 into the rear support rod level 2 11, and from the front support rod level 10 20 into the front support rod level 2; the interior of the locking and unlocking structure 2 12 is a partition structure, and the gas generated by the gas generator cannot flow from the rear support rod level 2 11 into the rear support rod level 3 13, and from the front support rod level 2 into the front support rod level 3; after the gas flows into the rear support rod level 2 11 and the front support rod level 2, the rear support rod level 3 13 is driven by the action of air pressure to extend out of the rear support rod level 2 11, and the front support rod level 3 is extended out of the front support rod level 2, and at the same time, the rear support rod level 2 11 is driven to extend out of the rear support rod level 1 9, and the front support rod level 2 is extended out of the front support rod level 1 20.

[0068] Step 4: When no further support is needed, retract the rear support rod level 2 11 and the rear support rod level 3 13 into the rear support rod level 1 9, and retract the front support rod level 2 and the front support rod level 3 into the front support rod level 1 20;

[0069] Step 5: When using again, repeat steps 1 to 4 until the police duty anti-fall equipment is no longer needed. When the police duty anti-fall equipment needs to be stored, after step 5, untie the police duty anti-fall equipment, unlock the front support rod locking and securing structures, and fold the front support rod bracket 4 and the rear support rod bracket 3 to secure them to the rear side of the backboard 2. The front support rod bracket 4 and the rear support rod bracket 3 drive the front and rear support rods to be stored behind the backboard 2.

[0070] It should be noted that the parts in this embodiment that are the same or similar to those in the second embodiment can be referenced to each other and will not be described in detail in this application.

[0071] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

Claims

1. A police duty anti-fall equipment, characterized in that: include: The backrest is provided with a back strap, a back plate, a rear support rod and a front support rod; the back strap is installed on the front side of the back plate; the back plate is provided with a rear support rod bracket, a front support rod bracket, a front support rod locking and fixing structure and a rear support rod locking and fixing structure, and the rear support rod and the front support rod locking and fixing structure are respectively installed on the middle and left and right sides of the back side of the back plate through the rear support rod bracket and the rear support rod locking and fixing structure, the front support rod bracket and the front support rod locking and fixing structure; the rear support rod includes a rear support rod level 1, a rear support rod level 2 and a rear support rod level 3 from top to bottom; the front support rod includes a front support rod level 1, a front support rod level 2 and a front support rod level 3 from top to bottom; a circuit board and a battery are integrated inside the back plate, and a gas generator integrated box is installed on the back side of the back plate, and a gas generator is provided in the gas generator integrated box, and an aviation plug is connected to the top of the gas generator integrated box, and the other end of the aviation plug is connected to the battery; the center air outlet at the bottom of the gas generator integrated box is connected to the top of the first level of the rear support rod, and the air outlets on both sides of the bottom of the gas generator integrated box are connected to the top of the first level of the front support rod through an air guide hose.

2. The anti-fall equipment for police duty according to claim 1, characterized in that: Front support rod bracket pivots are provided at both ends of the front support rod bracket; the inner side of the top of the first level of the front support rod is connected to the front support rod bracket through the front support rod bracket pivot, and the other end of the front support rod bracket is connected to both sides of the middle part of the rear side of the back plate through the front support rod bracket pivot; the middle part of the first level of the front support rod is connected to the front support rod bracket through the front support rod bracket pivot, and the other end of the front support rod bracket is connected to both sides of the bottom of the rear side of the back plate through the front support rod bracket pivot.

3. The police duty anti-fall equipment according to claim 1 or claim 2, characterized in that: The front support rod locking and fixing structure includes a front support rod upper locking and fixing structure and a front support rod lower locking and fixing structure; the front support rod lower locking and fixing structure includes a front support rod latch, a front support rod latch placement slot and a front support rod locking wrench; the front support rod latch is installed between the front support rod first level and the front support rod bracket connection position, the front support rod latch placement slots are located on the outside of both sides of the bottom of the back plate, the front support rod latch placement slots are rotatably connected with the front support rod locking wrench, and the front support rod latch is fixedly connected in the front support rod latch placement slots; the front support rod upper locking and fixing structure is located at the top of the front support rod and includes a front support rod locking wrench and a rotary lock; the front support rod top is provided with a front support rod positioning hole, and the rotary lock is located on the side wall of the front support rod bracket; the front support rod bracket is provided with a front support rod locking wrench on the other side of the rotary lock, and the rotary lock passes through and is fixed in the front support rod positioning hole.

4. The anti-fall equipment for police duty according to claim 1, characterized in that: The rear support rod locking and fixing structure includes a sliding ring support, a sliding ring support locking hole and a rear support rod latch; a rear support rod rotating shaft is provided on the upper rear side of the back plate, and the rear support rod rotating shaft is connected to both sides of the gas generator integrated box; the rear support rod first-level sliding connection is connected to the sliding ring support, and a rear support rod bracket rotating shaft 1 and a rear support rod bracket rotating shaft 2 are provided on both sides of the rear support rod bracket; the sliding ring support is connected to the rear support rod bracket through the rear support rod bracket rotating shaft 1, and the other end of the rear support rod bracket is connected to the bottom of the rear side of the back plate through the rear support rod bracket rotating shaft 2; the sliding ring support locking hole and the rear support rod latch are provided at the connection between the sliding ring support and the rear support rod bracket, the sliding ring support locking hole is provided on the side wall of the sliding ring support, the rear support rod latch is provided at the end of the rear support rod bracket, and the rear support rod latch cooperates and extends into the sliding ring support locking hole.

5. The anti-fall equipment for police duty according to claim 1, characterized in that: A locking and unlocking structure 1 is connected between the first and second levels of the rear support rod, and between the first and second levels of the front support rod; a locking and unlocking structure 2 is connected between the second and third levels of the rear support rod, and between the second and third levels of the front support rod; the locking and unlocking structure 1 and the locking and unlocking structure 2 are self-locking structures; the rear support rod and the front support rod are hollow structures, the interior of the locking and unlocking structure 1 is a through structure, and the interior of the locking and unlocking structure 2 is a partition structure.

6. The anti-fall equipment for police duty according to claim 1, characterized in that: The front and rear support rods are made of carbon fiber; the bottoms of the third-level rear support rod and the third-level front support rod are made of rubber leather heads.

7. The operating method of the police duty anti-fall equipment according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: The sensor inside the circuit board determines the human body posture. When the human body is about to fall, the circuit board controls the aviation plug to supply power to the gas generator; Step 2: After power is supplied to a single gas generator in the gas generator integrated box, gas is discharged, and the gas enters the central air outlet and the air outlet holes on both sides of the bottom of the gas generator integrated box; Step 3: After the gas enters the rear support rod level 1 and the front support rod level 1, the rear support rod level 2 and the rear support rod level 3 pop out from the rear support rod level 1, and the front support rod level 2 and the front support rod level 3 pop out from the front support rod level 1; the bottoms of the rear support rod level 3 and the front support rod level 3 are supported on the ground; Step 4: When no further support is needed, retract the rear support rod level 2 and level 3 into the rear support rod level 1, and retract the front support rod level 2 and level 3 into the front support rod level 1; Step 5. When using again, repeat steps 1 to 4 until you no longer need to wear the police duty fall prevention equipment.

8. The working method of the police duty anti-fall equipment according to claim 7, characterized in that: When the police duty anti-fall equipment is in the storage state, before step one, the folded front support rod and the rear support rod are unfolded, the front support rod bracket and the rear support rod bracket are unfolded, and the front support rod locking and fixing structures and the rear support rod locking and fixing structures respectively fix the front support rod bracket and the rear support rod bracket to the designed positions; the carrying straps tie the police duty anti-fall equipment to the human body, and the police duty anti-fall equipment enters the police duty anti-fall equipment ready state, and the sensor in the circuit board judges the human body posture in real time.

9. The working method of the police duty anti-fall equipment according to claim 7, characterized in that: When the police duty anti-fall equipment needs to be stored, after step five, untie the police duty anti-fall equipment, unlock the front support rod locking and fixing structure and the rear support rod locking and fixing structure, fold the front support rod bracket and the rear support rod bracket to the rear side of the back panel, and the front support rod bracket and the rear support rod bracket drive the front support rod and the rear support rod to be stored on the rear side of the back panel.

10. The working method of the police duty anti-fall equipment according to claim 7, characterized in that: In step three, a locking and unlocking structure 1 is connected between the first and second levels of the rear support rod, and between the first and second levels of the front support rod; a locking and unlocking structure 2 is connected between the second and third levels of the rear support rod, and between the second and third levels of the front support rod; the rear support rod and the front support rod are hollow structures, the interior of the locking and unlocking structure 1 is a through structure, and the interior of the locking and unlocking structure 2 is a partition structure; when the gas enters the second level of the rear support rod and the second level of the front support rod, it drives the second level and the third level of the rear support rod to pop out from the first level of the rear support rod, and the second level and the third level of the front support rod to pop out from the first level of the front support rod.

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