[0011] The present invention will be further explained below in conjunction with the drawings:
[0012] figure 1 The structure diagram of the double-roll single-layer anti-insertion zipper shown, figure 2 The partial schematic diagram of the left anti-insertion piece and the right anti-insertion piece shown, image 3 Shown figure 1 Right view and Figure 4 Shown image 3 The top view of the double-roll single-layer anti-insertion zipper includes a chain base 1, a chain 2 and a steel tape measure 3. The steel tape measure 3 includes an upper steel tape measure 4 and a lower steel tape measure 5, the chain base 1 and the chain 2 and the outer shell of the steel tape measure 3 6 connection; the chain base 1 is provided with a left chain groove 7 and a right chain groove 8, the chain 2 includes a left chain 9, a right chain 10, a chain head sealing piece 11 and a chain tail sealing piece 12, the left chain 9 and the right chain 10 and The chain head sealing piece 11 and the chain tail sealing piece 12 are connected; the left chain 9 is connected with the left chain groove 7, the right chain 10 is connected with the right chain groove 8; the left chain 9 is provided with a left chain buckle 13 and a left chain cloth 14, and the left chain The buckle 13 is connected with the left chain cloth 14. The left chain buckle 13 is provided with a left anti-insertion piece 15, a left upper chain hook 16 and a left lower chain hook 17, a left chain buckle 13, a left anti-insertion piece 15, a left upper chain hook 16 and a left lower chain hook 17 is composed of an integral material; the right chain 10 is provided with a right chain buckle 18 and a right chain cloth 19, the right chain buckle 18 is connected with the right chain cloth 19, and the right chain buckle 18 is provided with a right anti-insertion piece 20, a right upper chain hook 21 and The right lower chain hook 22, the right chain buckle 18, the right anti-insertion piece 20, the right upper chain hook 21 and the right lower chain hook 22 are composed of a single material; the upper steel tape 4 is provided with an upper steel coil 23 and an upper steel coil 23 The upper head end 24 of the chain 2 is connected to the chain end sealing member 11 of the chain 2, the upper steel coil 23 is movably connected with the upper left chain hook 16 and the upper right chain hook 21, the upper steel coil 23 is located above the chain base 1; the lower steel tape measure 5 is provided with a lower steel coil 25, the lower head end 26 of the lower steel coil 25 is connected with the chain head sealing member 11 of the chain 2, and the lower steel coil 25 is movably connected with the lower left chain hook 17 and the lower right chain hook 22. The steel coil 25 is located under the chain base 1; the left anti-insertion piece 15 is located between each left chain buckle 13 and the right anti-insertion piece 20 is located between each right chain buckle 18, using the left anti-insertion piece 15 and the right anti-insertion piece 20 seal the gap between the left chain buckle 13 and the right chain buckle 18, increasing the difficulty for criminals to insert the upper chain 2; when the criminals use a sharp weapon to insert the chain 2, the sharp weapon is wound on the steel coil. 23 and the lower steel coil 25 block, making it difficult for criminals to insert the chain 2.
[0013] In order to use the upper steel coil 23 of the upper steel tape measure 4 and the lower steel coil 25 of the lower steel tape 5 to seal the closed opening of the chain 2 and to keep the chain 2 closed and separated, the chain base 1 includes an upper chain plate 27. The closing chain post 28 and the lower chain plate 29, the upper chain plate 27 is connected with the closing chain post 28, and the closing chain post 28 is connected with the lower chain plate 29; or, the upper chain plate 27, the closing chain post 28 and the lower chain plate 29 It is composed of an integral material; the upper steel coil 23 is located between the upper left chain hook 16 and the upper right chain hook 21, the lower steel coil 25 is located between the lower left chain hook 17 and the lower right chain hook 22; the upper chain plate 27 is provided with an upper The guide wheel 30, the upper steel coil 23 is connected to the chain head sealing member 11 through the upper guide wheel 30, the shell 6 is connected to the upper chain plate 27; the lower chain plate 29 is provided with a lower guide wheel 31, and the lower steel coil 25 passes through the lower guide The wheel 31 is connected to the chain head sealing member 11, and the housing 6 is provided with a handle 40.
[0014] In order to enable the chain base 1 to move on the chain 2 and to prevent the upper steel coil 23 and the lower steel coil 25 from separating from the chain 2, the distance between the upper left chain hook 16 and the upper right chain hook 21 is greater than the width of the upper steel coil 23, The upper steel coil 23 can move between the upper left chain hook 16 and the upper right chain hook 21; the distance between the lower left chain hook 17 and the lower right chain hook 22 is greater than the width of the lower steel coil 25, so that the lower steel coil 25 Can move between the lower left chain hook 17 and the lower right chain hook 22; the distance between the upper left chain hook 16 and the upper right chain hook 21 is greater than the width of the upper chain plate 27, so that the upper chain plate 27 can move between the upper left chain hook 16 and the upper right Move between the chain hooks 21; the distance between the lower left chain hook 17 and the lower right chain hook 22 is greater than the width of the lower chain plate 29, so that the lower chain plate 29 can move between the lower left chain hook 17 and the lower right chain hook 22; The distance from the upper left hook tail 32 of the upper left chain hook 16 to the upper right hook tail 33 of the upper right chain hook 21 is less than the width of the upper steel coil 23, so as to prevent the upper steel coil 23 from detaching from the upper left chain hook 16 and the upper right chain hook 21; lower left chain hook The distance from the lower left hook tail 34 of 17 to the lower right hook tail 35 of the lower right chain hook 22 is less than the width of the lower steel coil 25, so as to prevent the lower steel coil 25 from detaching from the lower left chain hook 17 and the lower right chain hook 22; The belt 23 is located between the upper left hook tail 32 and the upper right hook tail 33 and the upper chain plate 27, the left upper hook tail 32 and the right upper hook tail 33 are located on the upper steel coil belt 23, and the upper chain plate 27 is located under the upper steel coil belt 23 The lower steel coil 25 is located between the left lower hook tail 34 and the right lower hook tail 35 and the lower chain plate 29, the lower steel coil belt 25 is located on the left lower hook tail 34 and the right lower hook tail 35, and the lower chain plate 29 is located on the lower steel Reel above 25.
[0015] In order to implement the dynamic connection of the left chain buckle 13 and the right chain buckle 18, the left gap 36 between one left chain buckle 13 and the other left chain buckle 13 is 0.2 mm to 0.5 mm larger than the width of the left anti-insertion piece 15; The right gap 37 between the right chain buckle 18 and the other right chain buckle 18 is 0.2 mm to 0.5 mm larger than the width of the right anti-insertion piece 20; the width of the left chain buckle 13 is equal to the width of the right chain buckle 18; the left anti-insertion The width of the piece 15 is equal to the width of the right anti-insertion piece 20; the width of the left chain buckle 13 is equal to the width of the left anti-insertion piece 15, and the width of the right chain buckle 18 is equal to the width of the right anti-insertion piece 20.
[0016] In order to lock the chain base 1 with a lock, the chain base 1 is provided with a movable locking hole 38, and the chain tail sealing member 12 is provided with a fixed locking hole 39, so as to facilitate the use of the lock to lock the chain base 1 and the chain tail sealing member 12 together.
[0017] The method of using double-roll single-layer anti-insertion zipper is: when in use, connect the left chain cloth 14 and the right chain cloth 19 to the opening of the suitcase, and make the handle 40 on the steel tape measure 3 outside the suitcase; close the suitcase When the time, the handle 40 pulls the steel tape 3 and the chain base 1 to move, and the chain base 1 moves with the handle 40, so that the left chain 9 and the right chain 10 are snapped together to close the opening of the suitcase; the upper steel tape 4 Following the movement of the chain base 1, the upper steel coil 23 is pulled out with the movement of the steel tape 4, and the pulled out upper steel coil 23 is buckled on the chain base 1 by the left upper chain hook 16 and the right upper chain hook 21, and the left chain 9 and the right chain 10 are sealed above the closed opening; at the same time, the lower steel tape 5 moves with the chain base 1, and the lower steel coil 25 is pulled out with the movement of the lower steel tape 5, and the pulled lower steel coil 25 is lowered by the left The chain hook 17 and the lower right chain hook 22 are buckled under the chain base 1 to seal under the closed opening of the left chain 9 and the right chain 10; when the left chain 9 and the right chain 10 are closed, the left anti-insertion piece 15 moves to the position The position between one left chain buckle 13 and the other upper left chain buckle 13, and the right anti-insertion piece 20 moves to a position between one right chain buckle 18 and the other right chain buckle 18, and the left anti-insertion piece 15 blocks one The gap between the left chain buckle 13 and the other left chain buckle 13, the right anti-insertion piece 20 is used to block the gap between one right chain buckle 18 and the other right chain buckle 18, making it more difficult for criminals to insert and open the zipper with a sharp weapon ; When opening the trunk of the suitcase, use the handle 40 to drag the chain seat 1 to move in the opposite direction. The chain seat 1 moves with the handle 40 to separate the closed left chain 9 from the right chain 10; at the same time, the upper steel coil 23 follows The chain base 1 moves in the opposite direction, and the upper steel coil 23 is retracted into the upper steel tape 4 under the elastic force of the upper steel tape 4 torsion spring; and the lower steel coil 25 moves in the opposite direction following the chain base 1, and the lower steel coil 25 is in the lower The steel tape 5 is retracted into the lower steel tape 5 under the elastic force of the torsion spring.
[0018] When the anti-insertion zipper closes the suitcase, the hand grip 40 drags the chain seat 1 and the housing 6 to move, the left chain buckle 13 and the left anti-insertion piece 15 are guided by the left chain groove 7, and the right chain buckle 18 and the right anti-insertion piece 20 are introduced from the right The chain groove 8 is introduced, and the left chain buckle 13 and the right chain buckle 18 are engaged and connected by the left chain groove 7 and the right chain groove 8 of the chain base 1. At the same time, the left anti-insertion piece 15 moves to a left chain buckle following the left chain buckle 13 The position of the left gap 36 between 13 and the other left chain buckle 13; the right anti-insertion piece 20 follows the right chain buckle 18 to move to the position of the right gap 37 between one right chain buckle 18 and the other right chain buckle 18; At the same time, the upper steel tape 4 moves with the chain base 1, and the upper steel coil 23 is pulled out with the movement of the upper steel tape 4, and the pulled upper steel coil 23 is buckled on the upper left chain hook 16 and the upper right chain hook 21 Between the chain plates 27; and the lower steel tape 5 moves with the chain base 1, the lower steel coil 25 is pulled out with the movement of the lower steel tape 5, and the lower steel coil 25 is buckled on the left lower chain hook 17 and right Between the lower chain hook 22 and the lower chain plate 29.
[0019] In order to implement the upper steel coil belt 23 and the lower steel coil belt 25 to follow the left chain buckle 13 and the right chain buckle 18, when the chain base 1 moves in the direction of closing the chain 2 following the handle 40, the left upper hook tail 32 and the right upper hook tail 33 follow When the left chain buckle 13 and the right chain buckle 18 move and the left chain buckle 13 and the right chain buckle 18 are snapped together, the distance between the left upper hook tail 32 and the right upper hook tail 33 is less than the width of the upper steel coil 23, so that the upper steel coil The belt 23 is buckled in the upper left chain hook 16 and the upper right chain hook 21; and the lower left hook tail 34 and the lower right hook tail 35 move with the left chain buckle 13 and the right chain buckle 18, and the left chain buckle 13 and the right chain buckle 18 are engaged When buckled together, the distance between the left lower hook tail 34 and the right lower hook tail 35 is smaller than the width of the lower steel coil 25, so that the lower steel coil 25 is buckled in the left lower chain hook 17 and the right lower chain hook 22.
[0020] When the left chain 9 and the right chain 10 are snapped together, the upper steel tape 4 moves with the chain base 1, the upper chain plate 27 follows the handle 40 to move between the left upper chain hook 16 and the right upper chain hook 21, and the upper steel coil 23 The drawn length is proportional or equal to the closed length of the left chain 9 and the right chain 10; and the lower steel tape 5 moves with the chain base 1, and the lower chain plate 29 follows the handle 40 on the lower left chain hook 17 and the lower right chain hook 22 When moving between, the length of the lower steel coil 25 pulled out is proportional or equal to the length of the left chain 9 and the right chain 10 closed. When the left chain 9 and the right chain 10 are separated from the closed state, the upper steel tape 4 moves with the chain base 1, the upper chain plate 27 follows the handle 40 to move between the left upper chain hook 16 and the right upper chain hook 21, and the upper steel coil 23 is The length of the retracted upper steel tape 4 is proportional or equal to the length of the left chain 9 and the right chain 10; and the lower steel tape 5 moves with the chain base 1, and the lower chain plate 29 follows the handle 40 on the left lower chain hook 17 and the right lower chain When the hooks 22 move between the hooks 22, the lower steel coil 25 is retracted. The length of the lower steel tape 5 is proportional or equal to the length of the left chain 9 and the right chain 10 separated.
[0021] When the left chain buckle 13 and the right chain buckle 18 are closed, the chain base 1 moves in the direction of the chain tail sealing member 12, and the left chain buckle 13 and the right chain buckle 18 are continuously closed as the chain base 1 moves; the left chain buckle 13 and When the right chain buckle 18 is separated, the chain base 1 moves in the direction of the chain head sealing piece 11, and the left chain buckle 13 and the right chain buckle 18 are continuously separated as the chain base 1 moves; each left anti-insertion piece 15 is adjacent to The left chain buckle 13 is movably connected, and each right anti-insertion piece 20 is movably connected with the adjacent right chain buckle 18.
[0022] In order to reduce the friction of the upper steel coil 23 and the lower steel coil 25, the upper guide wheel 30 is hinged with the upper chain plate 27, and the lower guide wheel 31 is hinged with the lower chain plate 29; the left chain buckle 13 and the right chain buckle 18 are closed Or when separated, the upper steel coil 23 and the upper guide wheel 30 are connected in a dynamic fit, the lower guide wheel 31 is hinged with the lower chain plate 29, and the lower steel coil 25 is connected in a dynamic fit with the lower guide wheel 31.
