Improved variable dual-purpose combined handle folding knife
By designing an improved variable dual-purpose combined handle folding knife, the combined structure of the blade connecting the rotating shaft, the first connecting shaft, the elastic arm, the swing arm and the cut-off switch, the multifunctionality and convenient storage of the folding knife are achieved, solving the problem of single use of the existing folding knife and inconvenient storage.
Patent Information
- Application Number
- CN202422029862.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-21
AI Technical Summary
Since the existing folding knife needs to meet the needs of folding storage, its use form is relatively simple. It can usually only be expanded into a knife similar to a straight knife. It sacrifices the convenience of the folding knife to store and still needs to be equipped with a corresponding storage sheath.
An improved variable dual-purpose combined handle folding knife is designed. The combination structure of the blade connecting the rotating shaft, the first connecting shaft, the elastic arm, the swing arm and the cut-off switch is realized to achieve the extension of the blade and the flip of the handle. It can be switched to two forms: knife and hand stabbing, and the locking and deformation functions of the blade are restricted through the elastic arm and the cut-off switch.
The versatility of the folding knife is realized, and it can be converted into a knife shape and a hand-sting shape. The handle is symmetrically hollow, which can realize the storage of the blade, improving the applicability and safety of the folding knife.
Smart Images
Figure CN222945612U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of knives, in particular to an improved variable dual-purpose combined handle folding knife. Background Art
[0002] Folding knives are used in production, life, self-defense, decoration, etc. They have a long history, exquisite workmanship, and are easy to carry, so they are widely used. The main feature of a folding knife is that it can be folded and stored, and the blade can be stored between the handles.
[0003] The existing folding knives have a relatively simple usage form because they need to be folded and stored. Usually, they can only be unfolded into a small knife similar to a straight knife. There are also designs in existing daily knives that can realize the switching between the two states of a small knife and a hand knife, but the convenience of storage of the folding knife is sacrificed, and it still needs to be equipped with a corresponding storage scabbard. Summary of the invention
[0004] The purpose of the utility model is to provide an improved variable dual-purpose combined handle folding knife, so as to solve the problem that the existing folding knives proposed in the above background technology have a relatively single usage form due to the need of folding and storage, and usually can only be unfolded into a knife similar to a straight knife. There are also designs in the existing daily knives that can realize the switching between the two states of knife and hand dagger, but the convenience of storage of the folding knife is sacrificed, and it still needs to be equipped with a corresponding storage scabbard.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved variable dual-purpose combined handle folding knife, comprising a blade body, a handle front section is installed at the rear end of the blade body, and a blade connecting shaft is inserted inside the front end of the handle front section, a handle rear section is installed at the rear end of the handle front section, and a first connecting shaft is inserted inside the front end of the handle rear section, an elastic arm with a tenon is installed at the rear end of the outer side of the blade body, two second swing arms and a positioning column are installed inside the handle rear section, a connecting arm is installed on one side of the two second swing arms, a first swing arm is installed on one side of the connecting arm, locking grooves are provided at the front ends of the outer sides of the two first swing arms, and a slidable safety switch is provided at the front end of the outer side of the handle rear section; the device as a whole has two usage modes, and the two usage modes are respectively a knife and a dagger.
[0006] Preferably, the blade body is rotatably connected to the front section of the handle via a blade connecting shaft, and the front section of the handle is rotatably connected to the rear section of the handle via a first connecting shaft, and the blade body, the front section of the handle and the rear section of the handle are rotatably foldable in pairs.
[0007] Preferably, a first steering shaft is provided in the middle part of the two first swing arms, and the two first swing arms are rotatably connected to one end of the two connecting arms through the two first steering shafts respectively; a second steering shaft is provided at one end of the two second swing arms, and the two second swing arms are rotatably connected to the other end of the two connecting arms through the two second steering shafts respectively; the front section of the handle, the rear section of the handle, the first swing arm and the second swing arm are connected to form a deformable quadrilateral structure through a hinge.
[0008] Preferably, a second connecting shaft and a third connecting shaft are inserted into the front end of the handle rear section, and the handle rear section is rotatably connected to one end of two second swing arms through the second connecting shaft, and the handle rear section is rotatably connected to one end of two first swing arms through the third connecting shaft, and the other ends of the two first swing arms are rotatably connected to the blade connecting shaft.
[0009] Preferably, an arc-shaped slide groove is provided in the middle of the two first swing arms, a limit rod is inserted into the interior of the front section of the handle, and the limit rod is slidably connected to the two arc-shaped slide grooves, thereby strengthening the first swing arm to drive the front section of the handle to rotate, so that the front section of the handle and the rear section of the handle are combined into a handle in the shape of a dagger.
[0010] Preferably, a limiting groove is provided on one side of the two second swing arms, and the two limiting grooves are arranged corresponding to the positioning card column. The safety switch is engaged and connected with the positioning card column, and the positioning card column positions the two second swing arms. The safety switch can block / release the operation of the positioning card column by sliding, thereby realizing the restriction / removal of the restriction of the deformation function.
[0011] Preferably, the tenon on the elastic arm is engaged with the locking groove, and the tenon attached to the elastic arm slides into the locking groove of the front section of the handle to lock the blade, and lifting the elastic arm contacts the blade to lock it.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by pulling the blade body to rotate around the blade connection shaft to straighten the blade body, the device is switched to a knife form; by pushing the front section of the handle to flip the front section of the handle around the first connection shaft, the blade body is moved to the bottom of the rear section of the handle, and the device is switched to a dagger form, thereby realizing the deformation adaptation function of the device, so that the device can be converted into a knife form and a dagger form, and the handle is symmetrically hollow, so that the blade body can be stored, thereby improving the applicability of the device, locking the blade by the elastic arm latch, and limiting the deformation by the safety switch, thereby improving the safety of the device in application. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the use form of the utility model;
[0014] Figure 2The three-dimensional cross-sectional structure of the utility model is shown in FIG. Figure 1 ;
[0015] Figure 3 The three-dimensional cross-sectional structure of the utility model is shown in FIG. Figure 2 ;
[0016] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the hand-shaped card of the utility model;
[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the hand-shaped card of the utility model;
[0018] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the storage form of the utility model;
[0019] Figure 7 It is a schematic diagram of the three-dimensional structure of the storage form of the utility model;
[0020] Figure 8 This is a schematic diagram of the three-dimensional structure of the blade locking form of the utility model;
[0021] Fig. 9 It is a three-dimensional structural schematic diagram of the safety switch of the utility model.
[0022] In the figure: 1. blade body; 2. front section of handle; 3. rear section of handle; 4. first swing arm; 5. second swing arm; 6. blade connecting shaft; 7. first connecting shaft; 8. positioning column; 9. connecting arm; 10. first steering shaft; 11. elastic arm; 12. locking groove; 13. safety switch. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0024] See also Figure 1-9 The utility model provides an improved variable dual-purpose combined handle folding knife, comprising a blade body 1, a handle front section 2 is installed at the rear end of the blade body 1, and a blade connecting shaft 6 is inserted inside the front end of the handle front section 2, a handle rear section 3 is installed at the rear end of the handle front section 2, and a first connecting shaft 7 is inserted inside the front end of the handle rear section 3, an elastic arm 11 with a tenon is installed at the rear end of the outer side of the blade body 1, two second swing arms 5 and a positioning clamping column 8 are installed inside the handle rear section 3, a connecting arm 9 is installed on one side of the two second swing arms 5, a first swing arm 4 is installed on one side of the connecting arm 9, a locking groove 12 is opened at the front end of the outer side of the two first swing arms 4, and a slidable safety switch 13 is provided at the front end of the outer side of the handle rear section 3;
[0025] When in use, the blade body 1 is pulled to rotate around the blade connecting shaft 6, and the blade body 1 is straightened, so that the device as a whole is in the use form of a knife; the handle front section 2 is pushed to make the handle front section 2 flip around the handle rear section 3 through the first connecting shaft 7, and at the same time, the handle front section 2 pushes the first swing arm 4 to rotate through the blade connecting shaft 6, so that the first swing arm 4 drives the connecting arm 9 and the second swing arm 5 to rotate, so that the device as a whole is switched to the use form of a dagger.
[0026] The blade body 1 is rotatably connected to the handle front section 2 via the blade connecting shaft 6, and the handle front section 2 is rotatably connected to the handle rear section 3 via the first connecting shaft 7. The blade body 1 and the handle front section 2 rotate around the blade connecting shaft 6, and the handle front section 2 and the handle rear section 3 rotate around the first connecting shaft 7.
[0027] A first steering shaft 10 is provided in the middle part of the two first swing arms 4, and the two first swing arms 4 are rotatably connected to one end of the two connecting arms 9 through the two first steering shafts 10 respectively. A second steering shaft is provided at one end of the two second swing arms 5, and the two second swing arms 5 are rotatably connected to the other end of the two connecting arms 9 through the two second steering shafts respectively. The two first swing arms 4 are rotatably connected to the connected connecting arms 9 through the first steering shaft 10, and the two second swing arms 5 are rotatably connected to the connected connecting arms 9 through the second steering shaft.
[0028] A second connecting shaft and a third connecting shaft are inserted into the interior of the front end of the handle rear section 3. The handle rear section 3 is rotatably connected to one end of the two second swing arms 5 through the second connecting shaft, and the handle rear section 3 is rotatably connected to one end of the two first swing arms 4 through the third connecting shaft. The other ends of the two first swing arms 4 are rotatably connected to the blade connecting shaft 6. The two first swing arms 4 rotate in the handle rear section 3 through the third connecting shaft, and the two second swing arms 5 rotate in the handle rear section 3 through the second connecting shaft, and the two first swing arms 4 rotate relative to the blade connecting shaft 6.
[0029] An arc-shaped slide groove is opened in the middle part of the two first swing arms 4, and a limit rod is inserted into the interior of the handle front section 2. The limit rod is slidably connected to the two arc-shaped slide grooves. During the rotation of the first swing arm 4, the arc-shaped slide groove rotates. When the limit rod reaches the end of the arc-shaped slide groove, the arc-shaped slide groove drives the handle front section 2 to rotate through the limit rod, and the handle front section 2 rotates to the bottom of the handle rear section 3.
[0030] A limiting groove is provided on one side of the two second swing arms 5, and the two limiting grooves are arranged corresponding to the positioning column 8. The positioning column 8 positions the two second swing arms 5. The safety switch 13 is engaged and connected with the positioning column 8. The safety switch 13 can block / release the operation of the positioning column 8 by sliding, thereby realizing the restriction / removal of the deformation function.
[0031] The tenon on the elastic arm 11 is engaged with the locking groove 12, and the tenon attached to the elastic arm 11 slides into the locking groove 12 of the handle front section 2 to lock the blade. Lifting the elastic arm 11 contacts the blade to lock it.
[0032] When the embodiment of the present application is in use: by pulling the blade body 1, the blade body 1 rotates around the blade connection shaft 6, and then the blade body 1 leaves the interior of the handle front section 2 and the handle rear section 3, the blade body 1 is straightened, so that the device as a whole is in the use form of a knife, and at the same time, the tenon of the elastic arm 11 is engaged with the locking groove 12 to achieve the locking of the blade; by pushing the handle front section 2, the handle front section 2 is turned around the handle rear section 3 through the first connecting shaft 7, so that the handle front section 2 drives the blade body 1 to move below the handle rear section 3, and at the same time, the handle front section 2 drives the first swing arm 4 to rotate through the blade connection shaft 6, so that the first swing arm 4 drives the connecting arm 9 and the second swing arm 5 to rotate, so that the positioning clamping column 8 is clamped into the groove of the second swing arm 5, and the second swing arm 5 is clamped and fixed, and at the same time, the position of the blade body 1 is fixed, so that the device as a whole is switched to the use form of a hand dagger; the position of the sliding safety switch 13 is blocked by the movement of the positioning clamping column 8, so as to achieve the limitation of the deformation function.
[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. An improved variable dual-purpose combined handle folding knife, comprising a blade body (1), characterized in that: The blade body (1) is provided with a handle front section (2) at the rear end thereof, and a blade connecting shaft (6) is inserted into the front end of the handle front section (2); the handle rear section (3) is provided with a handle rear section (3) at the rear end thereof, and a first connecting shaft (7) is inserted into the front end of the handle rear section (3); an elastic arm (11) with a tenon is provided at the rear end of the outer side of the blade body (1); two second swing arms (5) and a positioning clamping column (8) are provided inside the handle rear section (3); a connecting arm (9) is provided on one side of the two second swing arms (5); a first swing arm (4) is provided on one side of the connecting arm (9); locking grooves (12) are provided at the front ends of the outer sides of the two first swing arms (4); and a slidable safety switch (13) is provided at the front end of the outer side of the handle rear section (3).
2. The improved variable dual-purpose combined handle folding knife according to claim 1, characterized in that: The blade body (1) is rotatably connected to the handle front section (2) via a blade connection shaft (6), and the handle front section (2) is rotatably connected to the handle rear section (3) via a first connection shaft (7).
3. The improved variable dual-purpose combined handle folding knife according to claim 1, characterized in that: A first steering shaft (10) is provided at the middle of each of the two first swing arms (4), and the two first swing arms (4) are rotatably connected to one end of each of the two connecting arms (9) via the two first steering shafts (10); a second steering shaft is provided at one end of each of the two second swing arms (5), and the two second swing arms (5) are rotatably connected to the other end of each of the two connecting arms (9) via the two second steering shafts.
4. The improved variable dual-purpose combined handle folding knife according to claim 1, characterized in that: A second connecting shaft and a third connecting shaft are inserted into the front end of the handle rear section (3); the handle rear section (3) is rotatably connected to one end of two second swing arms (5) via the second connecting shaft; the handle rear section (3) is rotatably connected to one end of two first swing arms (4) via the third connecting shaft; and the other ends of the two first swing arms (4) are rotatably connected to the blade connection shaft (6).
5. The improved variable dual-purpose combined handle folding knife according to claim 1, characterized in that: The middle parts of the two first swing arms (4) are each provided with an arc-shaped sliding groove, and a limiting rod is inserted into the interior of the handle front section (2), and the limiting rod is slidably connected to the two arc-shaped sliding grooves.
6. The improved variable dual-purpose combined handle folding knife according to claim 1, characterized in that: One side of each of the two second swing arms (5) is provided with a limiting groove, and the two limiting grooves are arranged corresponding to the positioning clamping column (8), and the safety switch (13) is engaged and connected with the positioning clamping column (8).
7. The improved variable dual-purpose combined handle folding knife according to claim 1, characterized in that: The tenon on the elastic arm (11) is engaged and connected with the locking groove (12).