Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of back for facilitating adjustable back portion contact block
Packet, the knapsack back contact block position can adjust up and down, and knapsack user is made to have better comfort and adaptability.
In order to achieve the above purpose, present invention employs technical solutions below:
A kind of knapsack facilitating adjustable back portion contact block, the knapsack include backpack body, harness, back contact block and waist contact
Block;Back contact block tunable arrangement is provided on rear side of backpack body, back contact block tunable arrangement exists for adjusting back contact block
The upper and lower position of human body back;Back contact block tunable arrangement includes two slide bars and adjusts band, and fixation is set two slide bars in parallel
It sets on the rear side of backpack body, the outside of slide bar is arranged in the back contact block, on the left and right both sides in the inside of back contact block
It is respectively arranged with sliding sleeve, sliding sleeve is movably arranged on two slide bars;The middle inside of the back contact block is provided with connection
Part, the adjusting band middle part are connected with connector, and the movable end for adjusting band extends downward into the lower section of backpack body, and in backpack body
Lower section be provided with locking member will adjust band movable end locking.
As a further improvement, the back contact block includes symmetrical contact block, left and right both sides sliding sleeve difference
It is arranged on two contact blocks.
As a further improvement, the adjusting band is movably arranged on connector, adjust band both ends at least one be
Movable end.
As a further improvement, one end of the adjusting band is movable end, the other end is fixing end, the locking structure
Part includes a ribbon clip tool, and fixing end is fixedly connected with backpack body, and movable end is had by ribbon clip locks.
Unilateral adjusting method needs additionally because firmly uneven, therefore in adjustment process and bad drawing with biggish power
Gas, or even can sometimes block and occur drawing motionless situation.As a further improvement, the both ends of the adjusting band are activity
End, the locking member include two ribbon clip tools, and two movable ends are respectively by two ribbon clip tool lockings.
As a further improvement, the adjusting band is arranged by connector in the both sides of isosceles triangle, band is adjusted
The locking point of movable end is between waist contact block and backpack body.
As a further improvement, the connector selects second gear button fastener.
As a further improvement, the upper end of two slide bars is fixed in the backpack body fabric on back contact block top,
Lower end extends to the bottom of backpack body and is fixed in backpack body fabric, and middle part is provided with multiple fixing pieces and is fixed on backpack body.
As a further improvement, the sliding sleeve is ribbon casing.
As a further improvement, the slide bar uses aluminum or aluminum alloy material, adjusting band, (6 use ribbon.
Due to the adoption of the above technical solution, which can adjust the present invention up and down, make to carry on the back
Wrapping user has better comfort and adaptability.
Specific embodiment
A specific embodiment of the invention is made a detailed explanation with reference to the accompanying drawing.
A kind of knapsack facilitating adjustable back portion contact block as shown in Figure 1, the knapsack include backpack body 1, harness, back contact
Block 2 and waist contact block;The rear side of backpack body 1 is provided with back contact block tunable arrangement, and back contact block tunable arrangement is for adjusting
It is as shown in Figure 2 in the upper and lower position of human body back to save back contact block 2.As shown in Figure 1, back contact block tunable arrangement includes two
Root slide bar 3 and adjusting band 6, slide bar 3 use aluminum or aluminum alloy material, adjust band 6 and use ribbon.Fixation is set two slide bars 3 in parallel
It sets on the rear side of backpack body 1, the upper end of two slide bars 3 is fixed in 1 fabric of backpack body on 2 top of back contact block, and lower end extends
To backpack body 1 bottom and be fixed in 1 fabric of backpack body, middle part is provided with multiple fixing pieces and is fixed on backpack body 1.The back
The outside of slide bar 3 is arranged in contact block 2, is respectively arranged with sliding sleeve 4 on the left and right both sides in the inside of back contact block 2, sliding sleeve 4 is
Ribbon casing.Back contact block 2 includes symmetrical contact block, and the sliding sleeve 4 on left and right both sides is separately positioned on two contact blocks
On, the sliding sleeve 4 on left and right both sides is movably arranged on two slide bars 3.The middle inside of the back contact block 2 is provided with company
Fitting, connector select second gear button fastener.It is movably arranged on connector in the middle part of the adjusting band 6, adjusts band 6 and pass through connection
Part is arranged in the both sides of isosceles triangle, and the both ends for adjusting band 6 are movable end, and movable end extends downward into the lower section of backpack body 1,
And the lower section of backpack body 1 is provided with locking member and locks the movable end for adjusting band 6.The locking member includes two ribbons
Clip tool 7, respectively by two 7 lockings of ribbon clip tool, the locking point for adjusting the movable end of band 6 connects two movable ends positioned at waist
Between contact block and backpack body 1.
Knapsack, which is backed on the body, to be adjusted not backing on the body, in particular to the adjusting side to back on the body
Method.The ribbon clip tool 7 that 6 locking point of band is adjusted by breaking two sides into two with one's hands withdraws ribbon, will bear length and is adjusted to maximum level.Again
The adjusting for being pulled outwardly two sides adjusts band 6, and the back contact block 2 for being at this moment bonded back can decline, and back length shortens.Recognize when reaching individual
When for appropriate size, it can stop drag.Adjusting finishes.
The present invention adjusts the flexible of band 6 by two sides, and control is fixed on the back contact mould at intermediate two aluminum strip sliding rails
The ribbon clip tool 7 that block 2 adjusted up and down to reach human body and the most comfortably bear height, and pass through two sides lock solid
It is fixed.Currently on the market bear that there is no same adjustment methods bear long adjustment, and the structure is according to simply
It is convenient, and user can directly be adjusted during back without taking down knapsack.