A push-pull structure

Abstract

The present invention discloses a push-pull structure, comprising a front lock surface and a handle located below the front lock surface, a transmission rack is slidably connected inside the front lock surface, a second transmission gear is movably mounted on the upper end of the transmission rack, the second transmission gear is meshed with a square rod fixed head, a square rod fixed head is provided with a square rod fixed head reset torsion spring, the upper end of the handle is connected with a handle head, the upper end of the handle is connected with a first transmission gear through a rotating shaft, the first transmission gear is meshed with a third transmission gear, one end of the third transmission gear is movably connected to the bottom of the transmission rack through a reversing screw, a handle reset torsion spring is clamped on the first transmission gear, a lock core is provided in the middle of the front lock surface, and the rear end of the lock core is connected with the square rod fixed head. The mechanism of the present invention is flexible and reliable; the push-pull unlocking angle is small; and a light and thin body can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of push-pull locks, in particular to a push-pull structure. Background Art

[0002] There are few large push-pull locks on the market, and the products themselves often require a large push-pull stroke to unlock. For this reason, we have launched a push-pull structure. Summary of the invention

[0003] The object of the present invention is to provide a push-pull structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a push-pull structure, comprising a front lock surface and a handle located below the front lock surface, a transmission rack being slidably connected inside the front lock surface, a second transmission gear being movably mounted on the upper end of the transmission rack, the second transmission gear being meshed with a square rod fixed head, a square rod fixed head being provided with a square rod fixed head reset torsion spring, the upper end of the handle being connected with a handle head, the upper end of the handle being connected with a handle head being connected with a first transmission gear through a rotating shaft, the first transmission gear being meshed with a third transmission gear, one end of the third transmission gear being movably connected to the bottom of the transmission rack through a reversing screw, a handle reset torsion spring being clamped on the first transmission gear, a lock core being provided in the middle of the front lock surface, and the rear end of the lock core being connected with the square rod fixed head.

[0005] As a further optimization of the technical solution, an iron cover plate is screwed to the rear of the front lock surface, a torsion spring baffle is sleeved on the rotating shaft, and the bottom of the handle reset torsion spring is located at the upper end of the torsion spring baffle.

[0006] As a further optimization of the technical solution, a fixed bracket is provided at the bottom of the front lock surface, and the upper end of the rotating shaft passes through the fixed bracket and is connected to the first transmission gear.

[0007] Compared with the prior art, the invention has the following beneficial effects: the mechanism is flexible and reliable; the push-pull unlocking angle is small; and a light and thin body can be achieved. The invention mainly realizes that when the handle has a very limited movable angle, the square rod fixed head can be rotated at a larger angle after the angle is changed, and the rotation direction can be changed.

[0008] The handle is pushed forward and tilted backward at an angle of degrees with the rotation axis as the axis, which is converted into a movable stroke of only 5mm for the third transmission gear and the transmission rack. However, the required stroke for the square rod fixed head to rotate is about 7mm. The solution is to double the stroke of the second transmission gear through the two-stage large and small gears (small gear with large gear) of the second transmission gear to meet the demand.

[0009] However, since the force-bearing position of the handle itself is far from the rotation fulcrum, the handle can be rotated with a light push, which can balance the force added by the small gear of the second transmission gear with the large gear, making the overall push-pull experience of the handle easy and comfortable;

[0010] Due to the special rotation situation, the travel direction is changed through the third transmission gear, the rotating shaft and the first transmission gear. The transmission rack can be cleverly moved up and down by pushing and pulling the handle forward and backward. At the same time, the reversing screw can realize the free reversal of the rotation of the square rod fixed head. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0012] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 3-10 It is a schematic diagram of the state structure when the present invention is used.

[0014] In the figure: 1 front lock surface, 2 first transmission gear, 3 lock core, 4 square rod fixed head reset torsion spring, 5 transmission rack, 6 square rod fixed head, 7 second transmission gear, 8 iron cover plate, 9 reversing screw, 10 third transmission gear, 11 fixed bracket, 12 handle, 13 handle head, 14 torsion spring baffle, 15 handle reset torsion spring, 16 rotating shaft. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-10 The present invention provides a technical solution: a push-pull structure, comprising a front lock surface 1 and a handle 12 located below the front lock surface 1, a transmission rack 5 is slidably connected inside the front lock surface 1, a second transmission gear 7 is movably mounted on the upper end of the transmission rack 5, the second transmission gear 7 is meshed with a square rod fixed head 6, a square rod fixed head reset torsion spring 4 is provided on the square rod fixed head 6, a handle head 13 is connected to the upper end of the handle 12, a first transmission gear 2 is connected to the upper end of the handle head 13 through a rotating shaft 16, the first transmission gear 2 is meshed with a third transmission gear 10, one end of the third transmission gear 10 is movably connected to the bottom of the transmission rack 5 through a reversing screw 9, a handle reset torsion spring 15 is clamped on the first transmission gear 2, a lock core 3 is provided in the middle of the front lock surface 1, and the rear end of the lock core 3 is connected to the square rod fixed head 6.

[0017] Specifically, an iron cover plate 8 is screwed to the rear of the front lock surface 1 , a torsion spring baffle 14 is sleeved on the rotating shaft 16 , and the bottom of the handle reset torsion spring 15 is located at the upper end of the torsion spring baffle 14 .

[0018] Specifically, a fixing bracket 11 is provided at the bottom of the front lock surface 1 , and the upper end of the rotating shaft 16 passes through the fixing bracket 11 and is connected to the first transmission gear 2 .

[0019] The reversing screw 9 is on the right:

[0020] like Figure 3 As shown, the reversing screw is on the right;

[0021] like Figure 4 As shown, when the handle 12 is pushed forward by force, the third transmission gear 10 is driven to rotate counterclockwise due to the synchronous action of the first transmission gear 2 (bevel gear), and then the transmission rack 5 is driven upward through the reversing screw 9, and the second transmission gear 7 is synchronously driven to rotate right, and finally the square rod fixing head 6 is driven to rotate left by the second transmission gear 7;

[0022] like Figure 5 When the push force on the handle 12 is released, the handle 12 is completely reset to its initial state under the action of the square rod fixed head reset torsion spring 4 and the handle reset torsion spring 15;

[0023] like Figure 6 As shown, the handle 12 is pulled back by the force, and the first transmission gear 2 (bevel gear) drives the third transmission gear 10 to rotate clockwise in synchronization, and then drives the transmission rack 5 downward through the reversing screw 9, and synchronously drives the second transmission gear 7 to turn left, and finally the square rod fixing head 6 is driven by the second transmission gear 7 to turn right, and returns to the initial state after the rearward pulling force is released;

[0024] The reversing screw 9 is on the left:

[0025] like Figure 7 As shown, the reversing screw 9 is on the left;

[0026] like Figure 8 As shown, when the handle 12 is pushed forward by force, the first transmission gear 2 (bevel gear) drives the third transmission gear 10 to rotate counterclockwise, and then drives the transmission rack 5 downward through the reversing screw 9, and synchronously drives the second transmission gear 7 to turn left, and finally the second transmission gear 7 drives the square rod fixing head 6 to turn right;

[0027] like Fig. 9 As shown, when the push force on the handle 12 is released, the handle 12 is completely reset to its initial state under the action of the square rod fixed head reset torsion spring 4 and the handle reset torsion spring 15;

[0028] like Fig.10As shown, when the handle 12 is pulled after receiving force, the first transmission gear 2 (bevel gear) synchronously drives the third transmission gear 10 to rotate clockwise, and then drives the transmission rack 5 upward through the reversing screw 9, synchronously drives the second transmission gear 7 to turn right, and finally the second transmission gear 7 drives the square rod fixing head 6 to turn left, and returns to the initial state after the rear pulling force is released;

[0029] The present invention mainly explains how to achieve a larger rotation angle of the square rod fixing head 6 and change the rotation direction after the angle is changed when the movable angle of the handle 12 is very limited.

[0030] Detailed description: The handle 12 is pushed forward and tilted backward with the rotating shaft 16 as the axis by 20 degrees, which translates into a movable stroke of only 5mm for the third transmission gear 10 and the transmission rack 5. However, the required stroke for the square rod fixed head 6 to rotate 50 degrees is about 7mm. The solution is to double the stroke of the second transmission gear 7 through the two-stage large and small gears (small gear with large gear) of the second transmission gear 7 to meet the demand;

[0031] However, since the force-bearing position of the handle 12 itself is far from the rotation fulcrum, the handle 12 can be rotated with a light push, which can balance the force added by the small gear of the second transmission gear 7 with the large gear, and the overall push-pull experience of the handle 12 is easy and comfortable;

[0032] Due to the special rotation situation, the travel direction is changed by the third transmission gear 10, the rotating shaft 16 and the first transmission gear 2. The transmission rack 5 is cleverly moved up and down by pushing and pulling the handle 12 forward and backward. At the same time, the reversing screw 9 is used to realize the free reversal of the rotation of the square rod fixing head 6.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A push-pull structure, comprising a front lock surface (1) and a handle (12) located below the front lock surface (1), Features: A transmission rack (5) is slidably connected inside the front lock surface (1); a second transmission gear (7) is movably mounted on the upper end of the transmission rack (5); the second transmission gear (7) is meshed with the square rod fixed head (6); a square rod fixed head return torsion spring (4) is provided on the square rod fixed head (6); the upper end of the handle (12) is connected to a handle head (13); the upper end of the handle head (13) is connected to the first transmission gear (2) via a rotating shaft (16); the first transmission gear (2) is meshed with a third transmission gear (10); one end of the third transmission gear (10) is movably connected via a reversing screw (9) At the bottom of the transmission rack (5), a handle reset torsion spring (15) is clamped on the first transmission gear (2), a lock core (3) is provided in the middle of the front lock surface (1), the rear end of the lock core (3) is connected to the square rod fixed head (6), an iron cover plate (8) is screwed to the rear of the front lock surface (1), a torsion spring baffle (14) is sleeved on the rotating shaft (16), the bottom of the handle reset torsion spring (15) is located at the upper end of the torsion spring baffle (14), a fixed bracket (11) is provided at the bottom of the front lock surface (1), and the upper end of the rotating shaft (16) passes through the fixed bracket (11) and is connected to the first transmission gear (2).

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