CN212678579U

CN212678579U - Anti-lost knapsack

Info

Publication number: CN212678579U
Application number: CN202020614939.8U
Authority: CN
Inventors: 申建新; 申亚
Original assignee: Suzhou Kailing Bag Co ltd
Current assignee: Suzhou Kailing Bag Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-03-12
Anticipated expiration: 2030-04-22

Abstract

The utility model relates to a missing-proof backpack, which comprises a backpack, two straps and a missing-proof belt, wherein one end of the missing-proof belt is detachably connected on the backpack, the other end of the missing-proof belt is a free end, the two straps are respectively connected with a first connecting belt and a second connecting belt, the first connecting belt is connected with a lock catch, the second connecting belt is connected with a magnetic locking mechanism, the magnetic locking mechanism comprises a first shell, a lock tongue, a telescopic unit, an electromagnet and a first permanent magnet, the telescopic unit, the electromagnet and the first permanent magnet are positioned in the first shell, the lock tongue is connected with the telescopic unit, the telescopic unit is used for controlling the relative lock catch telescopic motion of the lock tongue, the telescopic unit is connected with the first permanent magnet, the first permanent magnet is arranged right opposite to the electromagnet, the electromagnet attracts the first permanent, so as to drive the telescopic unit and the bolt to move towards the direction far away from the lock catch and enable the bolt to be separated from the lock catch; the free end of the anti-lost belt is provided with a power supply which is used for electrifying the electromagnet.

Description

Anti-lost knapsack

Technical Field

The utility model relates to a knapsack especially relates to an anti-lost knapsack.

Background

At present, most of the anti-lost backpacks are designed for children. In order to prevent the child from being lost, the anti-lost backpack is generally connected with an anti-lost belt, and the other end of the anti-lost belt is held in the hand of the parent, so that when the child wears the anti-lost backpack, the parent can pull the child by the anti-lost belt held in the hand.

However, since the straps of the anti-walk backpack do not have a locking mechanism, when the straps are loose, the backpack is easy to slip off the shoulder of the child during vigorous activities, and parents lose the pulling force on the child.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a prevent knapsack of wandering away, the utility model discloses a connect the mutual locking cooperation of first connecting band and second connecting band on the braces and prevent knapsack and children's separation, utilize the hasp simultaneously, realize the locking rather than complex magnetism locking mechanism, and rely on the head of a family handheld prevent that the power on the wandering away takes to realize the quick unblock of hasp and magnetism locking mechanism.

The utility model discloses a prevent knapsack that wanders away, including the knapsack, connect two braces on the knapsack and connect to the prevent belt that wanders away on the knapsack, the one end of preventing the belt that wanders away can be dismantled and connected on the knapsack, the other end of preventing the belt that wanders away is the free end, connect with first connecting band and second connecting band on two braces respectively, first connecting band and second connecting band are placed in the user chest or belly; the first connecting belt is connected with a lock catch, the second connecting belt is connected with a magnetic locking mechanism, the magnetic locking mechanism comprises a first shell, a lock tongue, a telescopic unit, an electromagnet and a first permanent magnet, the telescopic unit, the electromagnet and the first permanent magnet are located in the first shell, the lock tongue is connected with the telescopic unit, the telescopic unit is used for controlling the lock tongue to move relative to the lock catch in a telescopic mode, the telescopic unit is connected with the first permanent magnet, the first permanent magnet is arranged right opposite to the electromagnet, the end portion of the lock tongue is provided with a second permanent magnet, the lock catch is internally provided with a third permanent magnet right opposite to the end portion of the lock tongue, the unlike magnetic poles of the second permanent magnet and the third permanent magnet are arranged relatively, the attraction force between the electromagnet and the first permanent magnet is greater than that between the second permanent magnet and the third permanent magnet when the electromagnet is powered on, the electromagnet, and the lock tongue is separated from the lock catch; the free end of the anti-lost belt is provided with a power supply which is used for electrifying the electromagnet.

Furthermore, flexible unit includes telescopic link and connecting rod, and the spring bolt is installed in the one end of telescopic link, and the one end that the telescopic link is close to the spring bolt is connected with the connecting rod, and connecting rod one end is equipped with first permanent magnet.

Further, magnetism locking mechanism still includes spacing unit, and spacing unit includes spring, sleeve and stopper, and the telescopic link other end is established in the sleeve, and the one end that the telescopic link is located the sleeve is equipped with the stopper, and stopper one side is equipped with the spring, and the spring is established in the sleeve.

Furthermore, the power supply is arranged in the second shell, a second electrode connected with the power supply is arranged outside the second shell, a first electrode connected with the electromagnet is arranged outside the first shell, and when the second electrode is in contact with the first electrode, the electromagnet is in an electrified state.

Further, the first permanent magnet is fixedly connected with the connecting rod.

Furthermore, the surfaces of the first connecting belt and the second connecting belt are provided with silica gel layers.

Further, the middle portion of the anti-wandering belt is an elastic belt.

Further, the elastic band is spiral.

Furthermore, one end of the anti-lost belt is provided with a hook, the backpack is provided with a connecting ring, and the hook is detachably connected to the connecting ring.

Furthermore, the free end of the anti-lost belt is provided with an annular handle, and a power supply is arranged on the annular handle.

Further, the power source is a battery.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the utility model discloses a connect first connecting band and second connecting band respectively on two braces to rely on hasp and magnetism locking mechanism to realize the interconnect and the separation of first connecting band and second connecting band, thereby prevent that children from separating with the knapsack easily at violent activity in-process, guarantee the head of a family and keep the tractive to children. Meanwhile, the lock catch and the magnetic locking mechanism are quickly unlocked by the aid of a power supply on the anti-lost belt held by parents, and the locking device is convenient to use.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the anti-lost backpack of the present invention;

FIG. 2 is a schematic structural view of the latch and magnetic locking mechanism;

description of reference numerals:

1-a backpack; 2-carrying the strap; 10-hanging hooks; 20-a first connecting strip; 21-a second connecting strap; 30-a connecting ring; 31-a ring-shaped handle; 32-a second housing; 33-an elastic band; 320-a second electrode; 201-locking; 202-a third permanent magnet; 210-a first electrode; 211-a first housing; 212-a tongue; 213-a connecting rod; 214-a first permanent magnet; 215-an electromagnet; 216-a telescoping rod; 217-a limiting block; 218-a sleeve; 219-a spring; 220-second permanent magnet.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Examples

Referring to the drawings, the utility model discloses a backpack of preventing wandering away of a preferred embodiment, including knapsack 1, connect two braces 2 on knapsack 1 and connect the area of preventing wandering away on knapsack 1, the one end of the area of preventing wandering away can be dismantled and connect on knapsack 1, the other end of the area of preventing wandering away is the free end, is connected with first connecting band 20 and second connecting band 21 on two braces 2 respectively, first connecting band 20 fixedly connected with hasp 201, second connecting band 21 fixedly connected with magnetism locking mechanism. The surfaces of the first connecting belt 20 and the second connecting belt 21 are provided with silica gel layers, so that a buffering effect is achieved when the connecting belt is used, and the use comfort is improved.

The magnetic locking mechanism comprises a first shell 211, a locking bolt 212, a telescopic unit, a limiting unit, an electromagnet 215 and a first permanent magnet 214, wherein the telescopic unit comprises a telescopic rod 216 and a connecting rod 213, and the limiting unit comprises a spring 219, a sleeve 218 and a limiting block 217. The first shell 211 is provided with a strip-shaped hole for the bolt 212 to penetrate into and penetrate out of the first shell 211, the bolt 212 is positioned on one side of the first shell 211, the lock catch 201 is arranged right opposite to the bolt 212, the lock catch 201 is matched with the bolt 212 in shape, and when the lock catch 201 is locked with the magnetic locking mechanism, the bolt 212 is inserted into the lock catch 201.

The bolt 212 is installed at one end of the telescopic rod 216, one end of the telescopic rod 216 close to the bolt 212 is connected with a connecting rod 213, and one end of the connecting rod 213 is fixedly connected with a first permanent magnet 214. An electromagnet 215 is arranged on one side in the first housing 211, the electromagnet 215 is arranged opposite to the first permanent magnet 214, and a gap is reserved between the electromagnet 215 and the first permanent magnet 214. The electromagnet, when energized, attracts the first permanent magnet 214. The end part of the bolt 212 is provided with a second permanent magnet 220, the inside of the lock catch 201 is opposite to the third permanent magnet 202 at the end part of the bolt 212, the unlike magnetic poles of the second permanent magnet 220 and the third permanent magnet 202 are oppositely arranged, and the attraction force between the electromagnet 215 and the first permanent magnet 214 is larger than that between the second permanent magnet 220 and the third permanent magnet 202 when the electromagnet is electrified.

The other end of the telescopic rod 216 is arranged in the sleeve 218, one end, located in the sleeve 218, of the telescopic rod 216 is provided with a limiting block 217, one side of the limiting block 217 is provided with a spring 219, the spring 219 is arranged in the sleeve 218, and the spring 219 can enable the bolt 212 to restore to the original state when the electromagnet 215 is not electrified.

One end of the anti-lost belt is provided with a hook 10, the backpack 1 is provided with a connecting ring 30, and the hook 10 is detachably connected to the connecting ring 30. The middle part of the anti-loss band is an elastic band 33, and the elastic band 33 is spiral. The free end of the anti-lost belt is provided with an annular handle 31, the annular handle 31 is provided with a second shell 32, and the power supply is arranged in the second shell 32. The power supply is used to energize the electromagnet 215. Preferably, the second housing 32 is provided at the outside thereof with a second electrode 320 connected to a power source, and the first housing 211 is provided at the outside thereof with a first electrode 210 connected to the electromagnet 215. When the latch bolt 212 is inserted into the latch 201, the first electrode 210 is exposed outside the latch 201. When the second electrode 320 is in contact with the first electrode 210, the electromagnet 215 is in an energized state.

The utility model discloses the theory of use as follows:

the parent holds the annular handle 31, the child backs the backpack 1, places the first connecting belt 20 and the second connecting belt 21 in front of the chest, keeps the second electrode 320 not in contact with the first electrode 210, and at the moment, the electromagnet 215 is in a power-off state, inserts the bolt 212 into the buckle 2017, and because the bolt 212 is sleeved by the buckle 201 once inserted into the buckle 201, the second permanent magnet 220 at the end of the bolt 212 and the third permanent magnet 202 in the buckle are attracted by magnetic force, the bolt 212 is difficult to separate from the buckle 201, and the locking of the buckle 201 and the magnetic locking mechanism is realized.

When the lock 201 is locked with the magnetic locking mechanism, the parent can use the anti-lost belt to pull the child carrying the backpack 1, and the two straps 2 are locked by the first connecting belt 20 and the second connecting belt 21 in front of the chest, so that the straps 2 cannot be separated from the shoulder and then separated from the child.

When a household owner brings the second electrode 320 on the annular handle 31 into contact with the first electrode 210 outside the first shell 211, the electromagnet 215 is electrified, after the electromagnet 215 is electrified, the electromagnet 215 attracts the first permanent magnet 214, and because the attraction between the electromagnet 215 and the first permanent magnet 214 is greater than the attraction between the second permanent magnet 220 and the third permanent magnet 202 when the electromagnet is electrified, when the electromagnet 215 is electrified, the telescopic rod 216 can be driven by magnetism to move the latch bolt 212, so that the second permanent magnet 220 and the third permanent magnet 202 are separated, the latch bolt 212 is further separated from the latch 2017, and the latch 201 is unlocked from the magnetic locking mechanism. After unlocking, the child can disengage the harness 2 from the body.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a prevent knapsack that wanders away, includes the knapsack, connect two braces on the knapsack and connect in prevent the area of wandering away on the knapsack, the one end of preventing the area of wandering away can dismantle connect in on the knapsack, the other end of preventing the area of wandering away is free end, its characterized in that: the two straps are respectively connected with a first connecting belt and a second connecting belt, the first connecting belt is connected with a lock catch, the second connecting belt is connected with a magnetic locking mechanism, the magnetic locking mechanism comprises a first shell, a lock tongue, a telescopic unit, an electromagnet and a first permanent magnet, the telescopic unit, the electromagnet and the first permanent magnet are located in the first shell, the lock tongue is connected with the telescopic unit, the telescopic unit is used for controlling the lock tongue to move telescopically relative to the lock catch, the telescopic unit is connected with the first permanent magnet, the first permanent magnet is arranged right opposite to the electromagnet, the end part of the lock tongue is provided with a second permanent magnet, a third permanent magnet is arranged right opposite to the end part of the lock tongue in the lock catch, the unlike magnetic poles of the second permanent magnet and the third permanent magnet are arranged oppositely, and the attraction between the electromagnet and the first permanent magnet is greater than that between the second permanent magnet and the third permanent magnet when the electromagnet, when the electromagnet is electrified, the electromagnet attracts the first permanent magnet to drive the telescopic unit and the lock tongue to move towards the direction far away from the lock catch, and the lock tongue is separated from the lock catch; and a power supply is arranged at the free end of the anti-lost belt and used for electrifying the electromagnet.

2. The anti-lost backpack of claim 1, wherein: the telescopic unit comprises a telescopic rod and a connecting rod, the spring bolt is installed at one end of the telescopic rod, one end, close to the spring bolt, of the telescopic rod is connected with the connecting rod, and a first permanent magnet is arranged at one end of the connecting rod.

3. The anti-lost backpack of claim 2, wherein: the magnetic locking mechanism further comprises a limiting unit, the limiting unit comprises a spring, a sleeve and a limiting block, the other end of the telescopic rod is arranged in the sleeve, the limiting block is arranged at one end, located in the sleeve, of the telescopic rod, the spring is arranged on one side of the limiting block, and the spring is arranged in the sleeve.

4. The anti-lost backpack of claim 2, wherein: the power sets up in the second casing, the outside of second casing be equipped with the second electrode that the power is connected, the outside of first casing is equipped with the first electrode of being connected with the electro-magnet, the second electrode with when the first electrode contact, the electro-magnet is in the circular telegram state.

5. The anti-lost backpack of claim 2, wherein: the first permanent magnet is fixedly connected with the connecting rod.

6. The anti-lost backpack of claim 1, wherein: and silica gel layers are arranged on the surfaces of the first connecting belt and the second connecting belt.

7. The anti-lost backpack of claim 1, wherein: the middle part of the anti-lost belt is an elastic belt.

8. The anti-lost backpack of claim 7, wherein: the elastic band is spiral.

9. The anti-lost backpack of claim 1, wherein: one end of the anti-lost belt is provided with a hook, the backpack is provided with a connecting ring, and the hook is detachably connected to the connecting ring.

10. The anti-lost backpack of claim 1, wherein: the free end of the anti-lost belt is provided with an annular handle, and the power supply is arranged on the annular handle.