CN218476725U - Folding knife with lock - Google Patents

Abstract

The utility model discloses a folding sword of area lock, including handle of a knife and blade, the back tip of blade is equipped with locking portion, and the left handle body is equipped with the through-hole, and the through-hole is equipped with the button, and the button has spacing portion, and the button can make spacing portion offset and break away from with the locking portion of blade when through-hole endwise slip, and the right handle body is equipped with the spout, and the spout is equipped with slide switch, and slide switch can follow the spout and slide between the position of adjusting well and misplacing with the right-hand member portion of button. The utility model discloses in, the locking portion who offsets when spacing portion and blade, the blade is locked and can not rotate, this through sliding slide switch to the position of adjusting well with the right-hand member portion of button, the button is because spacing by slide switch, the button can not be pressed for the blade can't be by the unblock. When needs unblock, need withdraw slide switch to the position with the right-hand member portion dislocation of button, the button is not spacing by slide switch this moment, alright in order to press the button and cause the spacing portion of button and the locking portion of blade to break away from, realize the unblock.

Description

Folding knife with lock

Technical Field

The utility model belongs to the technical field of the cutter, concretely relates to folding sword of area lock.

Background

The folding knife is a knife with a blade capable of being folded relative to a knife handle as the name implies, and the blade can be folded.

The locking mechanism of the existing folding knife is a key-type locking mechanism, a lock position is arranged at the rear end part of a blade, a key is arranged on a knife handle, the key can be abutted and separated from the lock position of the blade when sliding up and down, when the key is upwardly reset, the key is abutted with the lock position of the blade, the blade is locked when being in an open state, and when the key is pressed to be separated from the lock position of the blade, the blade is unlocked and can be rotated and folded. The key-type locking mechanism is easy to operate, but because the keys are arranged at the position of the knife handle, when a user holds the knife handle to use the folding knife, the palm easily presses the keys by mistake to unlock the blade, so that the blade rotates along the folding direction to injure the hand of the user by mistake, and the safety is low.

SUMMERY OF THE UTILITY MODEL

To the not enough among the prior art above, the utility model aims at providing a higher folding sword of area lock of security.

In order to achieve the above purpose, the utility model discloses the technical scheme who takes does: the utility model provides a folding sword of area lock, includes handle of a knife and blade, wherein, the handle of a knife includes the relative left handle body and the right handle body that set up, forms the blade groove between the left handle body and the right handle body, and the blade articulates between left handle body and right handle body front end, and the blade can be relative the handle of a knife open with fold condition between rotate, and the blade is in fold condition and arranges the blade inslot in, the back tip of blade be equipped with locking portion, and the left handle body is equipped with the through-hole, the through-hole is equipped with the button, the button has spacing portion, the button can make spacing portion offset and break away from with the locking portion of blade when through-hole endwise slip, the right handle body is equipped with the spout, the spout is equipped with slide switch, slide switch can slide between the position of just adjusting and misplacing with the right-hand member portion of button along the spout, the spacing portion of button offsets with the locking portion of blade, the blade is locked and can not rotate relatively.

In the above scheme, when the blade is in an open state, the limit part of the key abuts against the locking part of the blade, the blade is locked and cannot rotate relative to the handle, and the blade is moved to a position aligned with the right end part of the key by sliding the sliding switch, at the moment, the key cannot be pressed due to the limit of the sliding switch, and the limit part of the key cannot be separated from the locking part of the blade, so that the blade cannot be unlocked, namely, although a user holds the handle, the user cannot worry about unlocking caused by mistakenly pressing the key, and the safety is improved; when needs unblock, need withdraw slide switch to the position with the right-hand member portion dislocation of button, the button is not spacing by slide switch this moment, alright in order to press the button and cause the spacing portion of button and the locking part of blade to break away from, realize the unblock, the blade can be followed folding direction and rotated and is arranged in the blade inslot this moment.

Furthermore, a reset spring is arranged between the right end part of the key and the right handle body, the key can automatically reset after being pressed down by the reset spring, the blade can be always in a locked state under the condition that no external force is applied to press down the key, and the safety is high.

Further, slide switch include the slider and push away the button, push away the button and locate the lateral surface of slider, and the tip of slider can adjust well and the dislocation by the right-hand member portion of button, push away the button and can conveniently promote slide switch and slide, and the tip through the slider is spacing to the button, the structure is simpler.

Furthermore, the inner side surface of the sliding block is provided with a groove, the groove is provided with a spring and a sliding ball, the spring is arranged between the bottom of the groove and the sliding ball, part of the sliding ball is exposed out of the groove, the position of the right handle body opposite to the inner side surface of the sliding block is respectively provided with a first positioning groove and a second positioning groove which can be matched with the part of the sliding ball exposed out of the groove, when the end part of the sliding block is aligned with the right end part of the key, the sliding ball is matched with the first positioning groove, and when the end part of the sliding block is staggered with the right end part of the key, the sliding ball is matched with the second positioning groove. When the part of the sliding ball exposed out of the groove is matched with the first positioning groove or the second positioning groove, the sliding block needs to be pushed to move by force, and the sliding ball can automatically retract into the groove to be separated from the positioning groove, so that the phenomenon that the key is easy to operate by mistake due to the automatic sliding of the sliding switch can be avoided; in addition, when the sliding ball is aligned with the first positioning groove or the second positioning groove, the spring can rapidly push the sliding ball to be matched with the positioning groove, and the sliding ball and the positioning groove are impacted to generate slight sound and vibration, so that a user can sense whether the sliding switch slides to a specified position, and the use is more convenient.

Furthermore, a sleeve is sleeved in the groove, the spring and the sliding ball are arranged in the sleeve, the aperture of one end, corresponding to the sliding ball, of the sleeve is smaller than the diameter of the sliding ball, and the sliding ball is partially exposed out of the sleeve. During assembly, the sliding ball is firstly sleeved into the sleeve from the large opening end of the sleeve, then the spring is sleeved into the sleeve, finally the sleeve is inserted into the groove, assembly of the sliding switch is completed, the sliding ball is always pushed by the thrust of the spring to be extruded at the small opening end of the sleeve and cannot be separated from the sleeve, and the sliding switch is convenient to install.

Furthermore, spacing portion be located the right-hand member of button, and spacing portion be the open-ended hollow structure of right-hand member portion, in spacing portion's cavity was arranged in to reset spring's one end, the tip of slider can be adjusted well and the dislocation with spacing portion's right-hand member portion, spacing portion adopts hollow structure and makes things convenient for reset spring's installation, and also guarantees the steadiness of reset spring installation.

Furthermore, the left end of button have the button cap, outside the button cap left end stretches out the through-hole, the lateral wall of button cap right-hand member is equipped with the snap ring, the snap ring can offset with the pore wall of through-hole and detain, through pressing the button cap operation button slip, and the snap ring can avoid the button whole from the through-hole roll-off.

Further, left handle body, right handle body be the bilayer structure of superpose, the outer structure of right handle body is located to the spout, and the inlayer structure of right handle body is located to first constant head tank and second constant head tank, the slider is arranged in between skin and the inlayer structure, the inlayer structure of right handle body is passed to the spacing portion of button, this scheme can make things convenient for the equipment of whole handle of a knife structure.

Furthermore, one end of the reset spring is arranged in the hollow of the limiting part, the other end of the reset spring is abutted against the outer layer structure of the right handle body, and the limiting part penetrates through the inner layer structure of the right handle body to be aligned and staggered with the end part of the sliding block.

Further, the locking portion of the rear end portion of the blade be the arc-shaped groove, and the lateral wall of the limiting portion be the arc-shaped surface matched with the arc-shaped groove, so that the locking portion can be tightly attached to the limiting portion, the blade is stable in a locking state, and shaking cannot occur.

The utility model discloses a folding knife, be in the lock-out state back at the blade, restrict the button and can not be pressed by the mistake and cause the unblock through slide switch, blade locking mechanical system's reliability has further been improved, and slide switch utilizes the slippery pearl to mutually support with first constant head tank and second constant head tank and fixes a position, ensure that slide switch can not automatic sliding and ensure that the button can be operated by the accuracy, the user normally grips the security that the handle of a knife used folding knife and further improves, and utilize the slippery pearl and constant head tank to produce slight sound and vibration with the constant head tank striking in right time, increase user's operation and feel, with the convenience that improves the use.

Drawings

Fig. 1 is an exploded schematic view of the folding knife with lock according to the embodiment of the present invention.

Fig. 2 is a front view of the folding knife with lock according to the embodiment of the present invention in the state of the sliding switch being aligned with the right end of the button.

Fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2.

Fig. 4 is an enlarged view of a portion D in fig. 3.

Fig. 5 is a front view of the folding knife with lock according to the embodiment of the present invention in a state where the sliding switch and the right end of the key are dislocated.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

Fig. 7 is an enlarged view of a portion E of fig. 6.

Fig. 8 is a schematic structural diagram of a slide switch according to an embodiment of the present invention.

Fig. 9 is a cross-sectional view taken along line C-C of fig. 8.

Fig. 10 is a schematic structural diagram of a key according to an embodiment of the present invention.

Wherein the graphical symbols are as follows:

1. a knife handle; 101. a left handle body; 102. a right handle body; 11. an insert pocket; 12. a through hole; 13. a chute;

2. a blade; 21. a lock part;

3. pressing a key; 31. a lock part; 32. a button cap; 321. a snap ring;

4. a slide switch; 41. a slider; 42. a push button; 43. a groove; 44. a spring; 45. a sliding bead; 46. a sleeve;

5. a return spring.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1 to 10, the present embodiment provides a folding knife with lock, which includes a knife handle 1 and a blade 2, wherein the knife handle 1 includes a left handle 101 and a right handle 102 that are oppositely disposed, a gap exists between the left handle 101 and the right handle 102 to form a blade slot 11, and the blade 2 is hinged between the front ends of the left handle 101 and the right handle 102, so that the blade 2 can rotate between an open state and a folded state relative to the knife handle 1, and the blade 2 is placed in the blade slot 11 in the folded state. The rear end of the blade 2 is provided with a locking part 21, the locking part 21 of the present embodiment is an arc-shaped groove arranged at the edge of the rear end of the blade 2, the left handle body 101 is provided with a through hole 12, the through hole 12 is provided with a key 3, the right end of the key 3 is provided with a limiting part 31, the outer side wall of the limiting part 31 is an arc-shaped surface matched with the locking part 21 in the shape of the arc-shaped groove, and when the key 3 slides left and right along the axial direction of the through hole 12, the outer side wall of the limiting part 31 can be abutted against and separated from the arc-shaped groove at the edge of the rear end of the blade 2; when the outer side wall of the limiting part 31 abuts against the arc-shaped groove at the rear end part of the blade 2, the blade is locked in an open state and cannot rotate relative to the cutter handle 1; the outer side wall of the limiting part 31 can be separated from the arc-shaped groove at the rear end part of the blade 2 by pressing the key 3, the blade 2 is in an unlocking state at the moment, and the blade 2 can be rotatably arranged in the blade groove 11 along the folding direction.

As the improvement of this embodiment, a return spring 5 is provided between the right end of the key 3 and the right handle 102, and by providing the return spring 5, the key 3 can be automatically reset after being pressed down, so that the outer side wall of the limiting portion 31 always abuts against the arc-shaped groove at the rear end of the blade 2 when no external force presses down the key 3, and the blade 2 is always locked and has high safety.

Also as a modified solution of this embodiment, the above-mentioned right handle 102 has a sliding slot 13, the sliding slot 13 swings in the front-back direction of the right handle 102, the sliding slot 13 has a sliding switch 4, the sliding switch 4 can slide in the front-back direction along the sliding slot 13, so that the front end of the sliding switch 4 can slide between positions aligned with and dislocated from the right end of the key 3, when the front end of the sliding switch 4 is aligned with the right end of the key 3, and the key 3 is limited by the front end of the sliding switch 4, and the key 3 cannot be pressed down, the limiting part 31 of the key 3 cannot be separated from the locking part 21 of the blade 2, and at this time, the blade 2 cannot be unlocked, that is, even though the user holds the handle 1, the user is not afraid of pressing down the key 3 by mistake, and the safety is improved; when needing the unblock, need to retreat the slide switch 4 front end backward to the position with the right-hand member dislocation of button 3, button 3 is spacing not received slide switch 4 front end this moment, alright in order to press button 3 and cause spacing portion 31 of button 3 to break away from the locking part 21 of blade 2, realizes the unblock, and blade 2 can be followed folding direction and rotated and is arranged in blade groove 11 this moment.

According to the folding knife, after the blade 2 is in the locking state, the sliding switch 4 limits the movement of the key 3, so that when a user holds the knife handle to use the folding knife, the palm does not press the key 3 even if pressing the key 3, the blade 2 cannot be unlocked due to mistaken pressing of the key 3, and the reliability of the blade locking mechanism is further improved.

Example 2

The folding knife with lock of this embodiment is a further improvement on the basis of embodiment 1, the slide switch 4 includes a slider 41 and a push button 42, the push button 42 is disposed on the outer side surface of the slider 41, and in this embodiment, the front end of the slider 41 is aligned and dislocated with the right end of the key 3, so as to limit whether the key 3 can be pressed down. In addition, a groove 43 is formed in the middle of the inner side surface of the slider 41, a sleeve 46 is sleeved in the groove 43, the outer side wall of the sleeve 46 is tightly matched with the inner wall of the groove 43, a spring 44 and a sliding ball 45 are arranged in the sleeve 46, the spring 44 is arranged between the bottom of the groove 43 and the sliding ball 45, the spring 44 is in a compressed state, and the aperture of one end, corresponding to the sliding ball 45, of the sleeve 46 is smaller than the diameter of the sliding ball 45, so that only a small half part of the sliding ball 45 is exposed out of the sleeve 46 and cannot be completely separated from the sleeve 46; the left handle body 101 and the right handle body 102 are both of a stacked inner and outer double-layer structure, the sliding groove 13 is arranged on the outer layer structure of the right handle body 102, the sliding switch 4 is arranged on the sliding groove 13, the push button 42 of the sliding switch is exposed outside the outer layer structure of the right handle body 102, the push button 42 is convenient to operate, the sliding switch 4 integrally moves back and forth, the sliding block 41 is located on the inner side of the outer layer structure of the right handle body 102, and the right end part of the key 3 penetrates through the inner layer structure of the right handle body 102. The inner layer structure of the right handle 102 is provided with a first positioning groove 14 and a second positioning groove 15 opposite to the inner side surface of the slider 41, which are capable of being matched with the part of the sliding ball 45 exposed outside the sleeve 46, respectively, when the front end of the slider 41 is aligned with the right end of the key 3, the sliding ball 45 is matched with the first positioning groove 14, and when the front end of the slider 41 is misaligned with the right end of the key 3, the sliding ball 45 is matched with the second positioning groove 15.

In the above scheme, when the part of the sliding ball 45 exposed outside the sleeve 46 is matched with the first positioning groove 14 or the second positioning groove 15, the sliding switch 4 needs to be pushed to move with force, and the sliding ball 45 automatically retracts into the sleeve 46 to separate from the positioning groove, so that the phenomenon that the key 3 is easy to operate by mistake due to the automatic sliding of the sliding switch 4 can be avoided; in addition, when the sliding ball 45 is aligned with the first positioning groove 14 or the second positioning groove 15, the spring 44 can rapidly push the sliding ball 45 to be matched with the positioning groove, and the sliding ball 45 collides with the positioning groove to generate slight sound and vibration, so that a user can sense whether the sliding switch 4 slides to a specified position, and the use is more convenient.

Example 3

The folding knife with lock of this embodiment is a further improvement on the basis of embodiment 2, the above-mentioned limiting part 31 is located at the right end of the key 3, the limiting part 31 is a hollow structure with an opening at the right end, and the limiting part 31 passes through the inner layer structure of the right handle body 102; the one end of reset spring 5 is arranged in the cavity of spacing portion 31, and the other end of reset spring 5 offsets with the outer layer structure of right handle body 102, and the front end of slider 41 can just and the dislocation with the right-hand member of spacing portion 31 is faced, and in this embodiment, spacing portion 31 adopts hollow structure and makes things convenient for reset spring 5's installation, and also guarantees the steadiness of reset spring 5 installation. The left end of the key 3 is provided with a button cap 32, the left end of the button cap 32 extends out of the through hole 12 and is exposed outside the outer layer structure of the left handle body 101, the side wall of the right end of the button cap 32 is provided with a snap ring 321, the snap ring 321 can be abutted and buckled with Kong Bixiang of the through hole 12, the key 3 is operated to slide by pressing the button cap 32, and the snap ring 321 can prevent the whole key 3 from sliding out of the through hole 12.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a folding knife with lock, including handle of a knife (1) and blade (2), wherein, handle of a knife (1) is including the relative left handle body (101) and the right handle body (102) that set up, form blade groove (11) between the left handle body (101) and the right handle body (102), blade (2) articulate between left handle body (101) and right handle body (102) front end, blade (2) can handle of a knife (1) relatively rotate between opening and fold condition, and blade (2) are in fold condition down and arrange in blade groove (11), its characterized in that: the rear end of the blade (2) is provided with a locking part (21), the left handle body (101) is provided with a through hole (12), the through hole (12) is provided with a key (3), the key (3) is provided with a limiting part (31), the limiting part (31) can be abutted to and separated from the locking part (21) of the blade (2) when the key (3) axially slides along the through hole (12), the right handle body (102) is provided with a sliding groove (13), the sliding groove (13) is provided with a sliding switch (4), the sliding switch (4) can slide between positions aligned and staggered with the right end of the key (3) along the sliding groove (13), when the limiting part (31) of the key (3) is abutted to the locking part (21) of the blade (2), the handle of the blade (2) is locked and cannot rotate relative to the handle (1).

2. The folding knife with lock of claim 1, wherein: and a return spring (5) is arranged between the right end part of the key (3) and the right handle body (102).

3. The folding knife with lock of claim 2, wherein: the sliding switch (4) comprises a sliding block (41) and a push button (42), the push button (42) is arranged on the outer side surface of the sliding block (41), and the end part of the sliding block (41) can be aligned and dislocated with the right end part of the key (3).

4. The folding knife with lock of claim 3, wherein: the inner side surface of the sliding block (41) is provided with a groove (43), the groove (43) is provided with a spring (44) and a sliding ball (45), the spring (44) is arranged between the groove bottom of the groove (43) and the sliding ball (45), part of the sliding ball (45) is exposed out of the groove (43), the right handle body (102) and the inner side surface of the sliding block (41) are respectively provided with a first positioning groove (14) and a second positioning groove (15) which can be matched with the part of the sliding ball (45) exposed out of the groove (43), when the end part of the sliding block (41) is aligned with the right end part of the key (3), the sliding ball (45) is matched with the first positioning groove (14), and when the end part of the sliding block (41) is staggered with the right end part of the key (3), the sliding ball (45) is matched with the second positioning groove (15).

5. The folding knife with lock of claim 4, wherein: the groove (43) is internally sleeved with a sleeve (46), the spring (44) and the sliding ball (45) are arranged in the sleeve (46), the aperture of one end, corresponding to the sliding ball (45), of the sleeve (46) is smaller than the diameter of the sliding ball (45), and part of the sliding ball (45) is exposed out of the sleeve (46).

6. The folding knife with lock of claim 3, wherein: the limiting part (31) is positioned at the right end of the key (3), the limiting part (31) is of a hollow structure with an opening at the right end, one end of the return spring (5) is arranged in the hollow of the limiting part (31), and the end part of the sliding block (41) can be aligned and dislocated with the right end part of the limiting part (31).

7. The folding knife with lock of claim 6, wherein: the left end of button (3) have button cap (32), outside button cap (32) left end stretched out through-hole (12), the lateral wall of button cap (32) right-hand member was equipped with snap ring (321), snap ring (321) can be buckled mutually with the pore wall of through-hole (12).

8. The folding knife with lock of claim 6, wherein: the left handle body (101) and the right handle body (102) are both of a stacked double-layer structure, the sliding groove (13) is arranged on an outer layer structure of the right handle body (102), the first positioning groove (14) and the second positioning groove (15) are arranged on an inner layer structure of the right handle body (102), and the limiting portion (31) of the key (3) penetrates through the inner layer structure of the right handle body (102).

9. The folding knife with lock of claim 8, wherein: one end of the return spring (5) is arranged in the hollow space of the limiting part (31), and the other end of the return spring (5) is propped against the outer layer structure of the right handle body (102).

10. The folding knife with lock of claim 1, wherein: the locking part (21) at the rear end part of the blade (2) is an arc-shaped groove, and the outer side wall of the limiting part (31) is an arc-shaped surface matched with the arc-shaped groove.

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