Spindle axis locking mechanism of folding cutter

Abstract

The utility model discloses a spindle axis locking mechanism of a folding cutter. The spindle axis locking mechanism comprises a blade, a left cutter handle, a right cutter handle, a locking ring, a fixing ring and a locking piece. The rear end of the blade is connected between the left knife handle and the right knife handle, the locking ring penetrates through the blade, the left knife handle and the right knife handle are connected with the fixing ring, and the blade is locked with the left knife handle and the right knife handle; and the locking piece is arranged in the locking ring. The main shaft axis locking mechanism of the folding cutter aims to overcome the existing defects, the overall structure principle is simple, and cutter production and machining and daily use and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of spindle axis locking mechanism of folding tool. BACKGROUND

[0002] Folding tool as a kind of daily tool, in the process of people using, operation convenience and structural reliability are crucial, and the locking mechanism of folding tool has crucial influence to the operation convenience and structural reliability of folding tool.

[0003] Folding tool usually has locking function when blade closes and blade unfolds, locking mechanism should be half-locked state when blade closes, can realize the function of quick unfolding blade without affecting the stability of blade closing.And locking mechanism should be full-locked state when blade unfolds, to avoid blade folding back and injuring user's limbs when using tool, meanwhile, locking mechanism should have the design of convenient one-handed operation to release lock in full-locked state, to facilitate blade closing after using tool.

[0004] Many locking mechanisms of folding tool on the market meet the above conditions by designing the overall structure of locking mechanism too complex, however, complex structure means lack of reliability, therefore, a kind of spindle axis locking mechanism of folding tool is proposed for the above problems. INVENTION CONTENTS

[0005] The utility model aims at overcoming the defects of prior art and provides a kind of spindle axis locking mechanism of folding tool, and the overall structure principle is simple, and it is convenient for tool production and processing and daily use maintenance.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of spindle axis locking mechanism of folding tool, including blade, left handle, right handle, lock ring, fixed ring and locking piece;

[0007] The rear end of the blade is connected between the left handle and the right handle, the lock ring penetrates the blade, the left handle and the right handle and connects the fixed ring, locks the blade with the left handle and the right handle;The locking piece is arranged in the lock ring.

[0008] Preferably, the rear end of the blade is provided with a first through hole, and opening locking grooves and closing locking grooves are respectively arranged on the inner wall of the first through hole;The blade is rotatably connected to the outer wall of the lock ring through the first through hole;Second through hole is opened on the lock ring, and the locking piece penetrates the second through hole and selectively connects the opening locking groove or the closing locking groove.

[0009] Preferably, the locking component includes a locking rod, a locking handle, a locking head, and a spring; the locking handle is connected to the locking head and sleeved on the locking rod, the spring is sleeved on the locking rod, the locking handle is connected to the spring, and the locking head passes through the second through hole on the locking ring.

[0010] Preferably, the right side of the right knife handle has multiple slots, and the locking ring has multiple teeth that cooperate with the slots.

[0011] Preferably, a stop post is connected between the left and right tool holders; a stop groove is provided at the rear end of the blade.

[0012] Preferably, a gasket is provided between the left and right sides of the blade and the left and right handles.

[0013] Preferably, the outer wall of the locking ring has an external thread, which is threaded to the fixing ring.

[0014] Preferably, the rear ends of the left and right knife handles are connected to a tailbone by fixing screws.

[0015] Preferably, the upper rear end of the blade is provided with anti-slip teeth.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The spindle locking mechanism of this folding cutter is configured with a blade, a left handle, a right handle, a locking ring, a fixing ring, and a locking element; the rear end of the blade is connected between the left handle and the right handle, and the locking ring passes through the blade, the left handle, and the right handle connecting fixing ring to lock the blade to the left handle and the right handle; the locking element is set inside the locking ring; it not only has high operational convenience and high structural reliability during use, but also the overall structure principle of the locking mechanism is simple, which is convenient for tool production and daily use and maintenance. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is an exploded view of the spindle locking mechanism of the folding cutter of this utility model;

[0019] Figure 2 This is a schematic diagram of the opening of the main shaft locking mechanism of the folding cutter of this utility model;

[0020] Figure 3 This is a schematic diagram of the cutting tool closing mechanism of the spindle center locking mechanism of the folding cutting tool of this utility model;

[0021] Figure 4This is a schematic diagram of the internal structure of the spindle locking mechanism of the folding cutter of this utility model when the cutter is opened.

[0022] Figure 5 This is a schematic diagram of the internal structure of the spindle locking mechanism of the folding cutter of this utility model when the cutter is closed.

[0023] Figure 6 Here is a detailed drawing of the blade of this utility model;

[0024] Figure 7 This is a detailed view of the right handle of this utility model;

[0025] Figure 8 This is a detailed diagram showing the connection between the locking ring and the locking component of this utility model;

[0026] Figure 9 Here is a detailed drawing of the locking component of this utility model;

[0027] Figure 10 This is a detailed view of the locking ring of this utility model.

[0028] In the diagram: 1. Blade; 2. Left handle; 3. Right handle; 4. Locking ring; 5. Retaining ring; 6. Locking element; 7. First through hole; 8. Open locking groove; 9. Close locking groove; 10. Second through hole; 11. Locking rod; 12. Lock handle; 13. Lock head; 14. Spring; 15. Slot; 16. Slot tooth; 17. Stop post; 18. Stop groove; 19. Washer; 20. Tail bone; 21. Anti-slip tooth. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-10 A spindle locking mechanism for a folding cutter includes a blade 1, a left handle 2, a right handle 3, a locking ring 4, a fixing ring 5, and a locking element 6. The rear end of the blade 1 is connected between the left handle 2 and the right handle 3. The locking ring 4 passes through the blade 1, the left handle 2, and the right handle 3 and connects to the fixing ring 5 to lock the blade 1 to the left handle 2 and the right handle 3. The locking element 6 is disposed inside the locking ring 4.

[0031] Please see Figure 8The rear end of the blade 1 is provided with a first through hole 7, and the inner wall of the first through hole 7 is provided with an opening locking groove 8 and a closing locking groove 9 on both sides respectively; the blade 1 is rotatably connected to the outer wall of the locking ring 4 through the first through hole 7; a second through hole 10 is provided on the locking ring 4, and the locking member 6 passes through the second through hole 10 and is selectively connected to either the opening locking groove 8 or the closing locking groove 9.

[0032] Please see Figure 8 , 9 The locking component 6 includes a locking rod 11, a locking handle 12, a locking head 13, and a spring 14. The locking handle 12 is connected to the locking head 13 and is sleeved on the locking rod 11. The spring 14 is sleeved on the locking rod 11. The locking handle 12 is connected to the spring 14. The locking head 13 passes through the second through hole 10 on the locking ring 4. The locking handle 12 and the locking head 13 are connected by threads.

[0033] In the initial state, such as Figure 3 , 5 As shown, at this time, the blade 1 rotates between the left handle 2 and the right handle 3. The spring 14 pushes the lock handle 12 and the lock head 13, causing the lock head 13 to penetrate the second through hole 10 on the lock ring 4 and insert into the closed locking groove 9 of the first through hole 7 at the rear end of the blade 1, preventing the blade 1 from rotating outwards. To open, manually move the lock handle 12, causing it to compress the spring 14. This causes the lock handle 12 to move the lock head 13 away from the closed locking groove 9, allowing the blade 1 to rotate. At this point, the lock handle 12 can be released. As the blade 1 rotates to its position (when the open locking groove 8 is directly in front of the lock head 13), the spring 14 will push the lock handle 12 and the lock head 13 forward, causing the lock head 13 to insert into the open locking groove 8 of the blade 1, restricting the rotation of the blade 1. Figure 2 , 4 As shown.

[0034] Please see Figure 1 , 7 Multiple slots 15 are provided on the right side of the right handle 3, and multiple locking teeth 16 are provided on the locking ring 4. The locking teeth 16 cooperate with the slots 15. When the blade 1 rotates and closes, the locking ring 4 can be restricted from rotating with the blade.

[0035] Please see Figure 4 , 5 A stop post 17 is connected between the left handle 2 and the right handle 3; a stop groove 18 is provided at the rear end of the blade 1. This is used to prevent the blade 1 from flipping backward when it is opened.

[0036] Please see Figure 1 A shim 19 is provided between the left and right sides of the blade 1 and the left handle 2 and right handle 3.

[0037] The outer wall of the locking ring 4 has external threads, which are threaded to the fixing ring 5.

[0038] The rear ends of the left handle 2 and the right handle 3 are connected to the tailbone 20 by fixing screws.

[0039] The upper rear end of blade 1 is provided with anti-slip teeth 21, which facilitates manual opening of blade 1.

[0040] The spindle locking mechanism of this folding tool consists of a blade 1, a left handle 2, a right handle 3, a locking ring 4, a fixing ring 5, and a locking element 6. The rear end of the blade 1 is connected between the left handle 2 and the right handle 3. The locking ring 4 passes through the blade 1, the left handle 2, and the right handle 3 and connects to the fixing ring 5, locking the blade 1 to the left handle 2 and the right handle 3. The locking element 6 is located inside the locking ring 4. This mechanism not only offers high operational convenience and structural reliability during use, but also features a simple overall structure, facilitating tool production, processing, and daily maintenance.

[0041] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spindle locking mechanism for a folding cutter, characterized in that, Includes a blade (1), a left handle (2), a right handle (3), a locking ring (4), a retaining ring (5), and a locking element (6); The rear end of the blade (1) is connected between the left handle (2) and the right handle (3). The locking ring (4) passes through the blade (1), the left handle (2) and the right handle (3) and connects to the fixing ring (5) to lock the blade (1) with the left handle (2) and the right handle (3). The locking member (6) is disposed in the locking ring (4).

2. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, The blade (1) has a first through hole (7) at its rear end. The inner wall of the first through hole (7) has an opening locking groove (8) and a closing locking groove (9) on both sides. The blade (1) is rotatably connected to the outer wall of the locking ring (4) through the first through hole (7). The locking ring (4) has a second through hole (10). The locking member (6) passes through the second through hole (10) and is selectively connected to either the opening locking groove (8) or the closing locking groove (9).

3. The spindle center locking mechanism for the folding cutter according to claim 2, characterized in that, The locking component (6) includes a locking rod (11), a locking handle (12), a locking head (13), and a spring (14); the locking handle (12) is connected to the locking head (13) and sleeved on the locking rod (11), the locking rod (11) is sleeved with the spring (14), the locking handle (12) is connected to the spring (14), and the locking head (13) passes through the second through hole (10) on the locking ring (4).

4. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, Multiple slots (15) are provided on the right side of the right handle (3), and multiple teeth (16) are provided on the locking ring (4). The teeth (16) cooperate with the slots (15).

5. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, A stop post (17) is connected between the left handle (2) and the right handle (3); a stop groove (18) is provided at the rear end of the blade (1).

6. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, A gasket (19) is provided between the left and right sides of the blade (1) and the left handle (2) and the right handle (3).

7. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, The outer wall of the locking ring (4) is threaded and is threaded to the fixing ring (5).

8. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, The rear ends of the left handle (2) and the right handle (3) are connected to the coccyx (20) by fixing screws.

9. The spindle center locking mechanism for the folding cutter according to claim 1, characterized in that, The upper rear end of the blade (1) is provided with anti-slip teeth (21).

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