Folding knife capable of hiding screws and disassembling tool thereof

Abstract

The utility model discloses a folding knife capable of hiding screws and a dismounting tool thereof, which relate to the technical field of folding knives, and comprise a blade, two sides of the blade are respectively provided with an inner shell and a second connecting shell, and a space for the blade to move is arranged between the inner shell and the second connecting shell; a first connecting shell is arranged on the side, away from the blade, of the inner shell. The clamping blocks of the inner shell body can be clamped with the clamping grooves, so that the first connecting shell is connected with the inner shell; the two clamping sleeves can prevent the positioning bolts from moving, so that the connecting stability of the first connecting shell and the inner shell is improved, the clamping blocks are matched with the clamping grooves, so that the first connecting shell can be prevented from rotating, the positioning bolts are prevented from being separated from the clamping sleeves, and accessories influencing the impression can be hidden; the locking piece is of a two-piece structure, each piece can play a supporting force which is slightly larger than that of locking of a conventional structure, and the hand feeling of normal operation is not affected. Therefore, the locking strength and stability are twice or even more than those of a folding knife with a conventional structure.

Description

Technical Field

[0001] The utility model relates to the technical field of folding knives, in particular to a folding knife capable of hiding screws and a disassembly tool thereof. Background Art

[0002] A folding knife is a type of knife that can be folded. The blade can be stored in the knife case when not in use to prevent injury caused by accidental touch by the user. Folding knives are small in size, easy to carry, and have a wide range of uses. They are the most commonly used and practical daily knives. As people's requirements for the user experience of folding knives increase, the structure, appearance, and functions of folding knives are also constantly improving.

[0003] At first, people only regarded folding knives as cutting tools. However, with the development of the times, people have higher requirements for the safety of folding knives, and the safety mainly comes from the "locking" function of folding knives. The existence of this function effectively prevents the folding knife from accidentally folding during use, effectively protecting the safety of the user. Moreover, due to the increasingly complex use environment and higher requirements, the strength of the inherent locking structure decades ago, which has been developed along with the entire industry, is far from meeting people's pursuit of locking strength today.

[0004] Aesthetics are also becoming more and more demanding with the development of the times. Hiding the screws and leaving users with a clean and simple surface has become a multi-level pursuit for people from the spiritual to the grip and usage experience. Utility Model Content

[0005] The purpose of the utility model is to provide a folding knife with hidden screws and a disassembly tool thereof, wherein the scabbard is composed of a first connecting shell, a second connecting shell and an inner shell, and the first connecting shell, the second connecting shell and the inner shell can be quickly separated by auxiliary tools to solve the technical problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A folding knife capable of hiding screws comprises a blade, wherein an inner shell and a second connecting shell are respectively arranged on two sides of the blade, and a space for the blade to move is provided between the inner shell and the second connecting shell; a first connecting shell is arranged on a side of the inner shell away from the blade; a locking piece is fixedly connected to a side of the inner shell close to the blade; a pocket clip is fixedly connected to a side of the first connecting shell away from the inner shell;

[0008] The inner shell comprises an inner shell body, both ends of which are fixedly connected to the second connection shell by a plurality of bolts, a clamping plate is provided on one side of the inner shell body close to the first connection shell, an inner groove is provided on one end of the clamping plate, and a clamping block is fixedly connected on one side of the clamping plate close to the inner groove; positioning holes are provided on both ends of the inner shell body, and a clamping sleeve is provided on one side of the two positioning holes; a center hole is provided in the middle of one side of the inner shell body close to the first connection shell;

[0009] The first connecting shell comprises a first connecting shell body, a side of the first connecting shell body close to the inner shell is fixedly connected with a card slot, and the position of the card slot corresponds to the position of the card block; threaded holes are provided at both ends of the side of the first connecting shell body close to the inner shell, and the two threaded holes are threadedly connected with positioning bolts, and the positions of the two positioning bolts correspond to the positions of the two positioning holes respectively, and the diameter of the nut of the positioning bolt corresponds to the diameter of the positioning hole, and the width of the nut of the positioning bolt is the same as the depth of the sleeve; a center column is provided in the middle of the side of the first connecting shell body close to the inner shell, and the position of the center column corresponds to the position of the center hole.

[0010] As a further technical solution of the utility model, one end of the inner shell body is provided with a connection hole for connecting with the blade, and a connection column is provided above the connection hole, and one end of the connection column is fixedly connected to the inner shell body.

[0011] As a further technical solution of the utility model, a positioning protrusion 1 is provided on the side of the inner shell body away from the connecting column, and the positioning protrusion 1 is located at the end of the inner shell body away from the connecting hole. A positioning protrusion 2 is provided at the end of the inner shell body away from the positioning protrusion 1, and the positioning protrusion 2 and the positioning protrusion 1 are located on the same horizontal line.

[0012] As a further technical solution of the utility model, two locking pieces are provided, one of which is integrally arranged with the inner shell body, and the other is fixedly connected to the inner shell body by bolts; the locking piece includes a locking piece body, the length of which is smaller than the length of the inner shell body; one end of the locking piece is provided with a through groove 1, and the other end is provided with a through groove 2, and the position of the through groove 1 corresponds to the positioning protrusion 2, and the position of the through groove 2 corresponds to the positioning protrusion 1.

[0013] As a further technical solution of the utility model, the blade includes a blade body, which is rotatably connected to a connecting ring at one end away from the blade edge, and the connecting ring is provided with a threaded inner hole on the inner side of one end close to the connecting hole and a thread on the outer side of the other end; an anti-slip groove is provided on the side of the blade away from the connecting ring.

[0014] As a further technical solution of the utility model, the threaded inner hole of the connecting ring is threadedly connected to the connecting bolt, the connecting bolt is located on the inner side of the connecting hole, and the end of the connecting ring away from the connecting bolt is threadedly connected to the second connecting shell; two gaskets are provided on the outside of the connecting bolt, one of the gaskets is located between the blade body and the inner shell body, and the other gasket is located between the blade body and the second connecting shell; a groove is provided at one end of the first connecting shell body, and the position of the groove corresponds to the position of the connecting column.

[0015] A disassembly tool for a folding knife capable of hiding screws comprises an auxiliary tool. The auxiliary tool comprises a tool body. A disassembly head is arranged at one end of the tool body, and a screwdriver wrench is arranged at the other end.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model comprises two positioning bolts which are respectively threadedly connected with the two threaded holes of the first connecting shell body, and then the first connecting shell body is moved to move the nuts of the two positioning bolts into the positioning holes respectively, and at this time the center column is also moved into the center hole; the clamping sleeves of the two positioning holes are arranged opposite to each other, and after the nuts of the positioning bolts enter the positioning holes, the first connecting shell body is slightly rotated, so that the first connecting shell body is rotated first with the center column as the center, and the nuts of the two positioning bolts are respectively moved and clamped into the two clamping sleeves, and the two clamping sleeves can fix the two positioning bolts, and when the first connecting shell body is docked with the inner shell body, the clamping block of the inner shell body can be clamped with the clamping groove, and cooperate with the connection of the positioning bolt and the clamping sleeve to realize the connection between the first connecting shell and the inner shell; the two clamping sleeves can prevent the positioning bolts from moving, thereby increasing the stability of the connection between the first connecting shell and the inner shell, and the clamping block cooperates with the clamping groove to prevent the first connecting shell from rotating, thereby preventing the positioning bolts from being separated from the clamping sleeve, and all accessories that affect the appearance, such as screws, are hidden;

[0018] The utility model discloses that when the folding knife needs to be quickly disassembled, the disassembly head of the auxiliary tool is moved along the gap between the inner shell and the second connecting shell to the clamping plate, one end of the clamping plate away from the clamping block is fixedly connected to the inner shell body, and the other end is in a suspended state, the disassembly head is moved to the inner groove, and the clamping plate is pushed through the inner groove, and the end of the clamping plate close to the clamping block is displaced under the push of the disassembly head, so that the clamping block is separated from the clamping groove; after the clamping block is separated from the clamping groove, the first connecting shell body is rotated to allow the two positioning bolts to move out of the two clamping grooves, so that the first connecting shell and the inner shell are quickly separated, and the operation is simple and efficient; the screwdriver wrench of the auxiliary tool can be used to disassemble the bolts connecting the inner shell body and the second connecting shell, so that the inner shell body and the second connecting shell are separated, and the operation is stable and can also be reversed to prevent the preset adjustment of the bolts of the fixed clamping position from being inaccurate;

[0019] In the utility model, the through slot 1 of the locking plate body is docked with the positioning protrusion 2, and the through slot 2 is docked with the positioning protrusion 1, and then the two ends of the locking plate body are fixedly connected to the inner shell body by multiple bolts. The two positioning protrusions can fix the position of the locking plate body and increase the stability of the connection between the inner shell body and the locking plate body; the locking plate body cooperates with the inner shell body to increase the overall strength of the locking of the folding knife. The specific implementation is to apply two stresses in opposite directions at the extension of the locking plate and the shell body. After the screws are tightened, the two stresses offset each other. In actual operation, we only need to overcome the difference in stress to achieve the unlocking operation. Because the locking plate and each independent part of the extension of the shell body are slightly greater than the locking strength of conventional products. Therefore, the locking strength of this folding knife is more than twice the locking strength of a conventional folding knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 This utility model Figure 1 Another perspective of the picture.

[0022] Figure 3 This utility model Figure 2 Bottom view of .

[0023] Figure 4 This utility model Figure 1 Schematic diagram of the splitting.

[0024] Figure 5 This utility model Figure 4 Another perspective of the picture.

[0025] Figure 6 This utility model Figure 4 Schematic diagram of the splitting.

[0026] Figure 7 This utility model Figure 6 Another perspective of the picture.

[0027] Figure 8 It is a three-dimensional structural schematic diagram of the inner shell in the utility model.

[0028] Fig. 9 This utility model Figure 8 main view.

[0029] Fig.10 This utility model Figure 8 Another perspective of the picture.

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the first connecting shell in the utility model.

[0031] Fig.12 This utility model Fig.11 main view.

[0032] Fig.13 It is a three-dimensional structural schematic diagram of the locking piece in the utility model.

[0033] Fig.14 This utility model Figure 6 A partial enlarged view of .

[0034] Fig.15 This utility model Figure 7 A partial enlarged view of .

[0035] Fig.16 It is a three-dimensional structural schematic diagram of the auxiliary tool in the utility model.

[0036] Fig.17 This utility model Fig.16 Another perspective of the picture.

[0037] Fig.18 It is a schematic structural diagram of a first locking piece and a second locking piece of a locking piece.

[0038] In the figure: 1-blade, 2-first connecting shell, 3-second connecting shell, 4-pocket clip, 5-inner shell, 6-locking plate, 7-positioning bolt, 8-connecting bolt, 9-gasket, 10-auxiliary tool;

[0039] 11-blade body, 12-anti-slip groove, 13-connecting collar, 21-first connecting shell body, 22-card groove, 23-threaded hole, 24-center column, 51-inner shell body, 52-card plate, 53-inner groove, 54-positioning hole, 55-connecting hole, 56-positioning protrusion one, 57-positioning protrusion two, 58-card block, 59-connecting column, 50-center hole, 61-locking piece body, 62-through groove one, 63-through groove two, 101-tool body, 102-disassembly head, 103-bit wrench; first locking piece 601; second locking piece 602. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] See also Figure 1-18In an embodiment of the utility model, a folding knife with hidden screws comprises a blade 1, an inner shell 5 and a second connecting shell 3 are respectively provided on both sides of the blade 1, and a space for the blade 1 to move is provided between the inner shell 5 and the second connecting shell 3; a first connecting shell 2 is provided on a side of the inner shell 5 away from the blade 1; a locking piece 6 is fixedly connected to a side of the inner shell 5 close to the blade 1; a pocket clip 4 is fixedly connected to a side of the first connecting shell 2 away from the inner shell 5;

[0042] The inner shell 5 comprises an inner shell body 51, both ends of which are fixedly connected to the second connection shell 3 by a plurality of bolts. A clamping plate 52 is provided on a side of the inner shell body 51 close to the first connection shell 2, one end of the clamping plate 52 is provided with an inner groove 53, and a clamping block 58 is fixedly connected to a side of the clamping plate 52 close to the inner groove 53; positioning holes 54 are provided on both ends of the inner shell body 51, and a clamping sleeve is provided on one side of the two positioning holes 54; a center hole 50 is provided in the middle of a side of the inner shell body 51 close to the first connection shell 2;

[0043] The first connecting shell 2 includes a first connecting shell body 21, and a slot 22 is fixedly connected to the side of the first connecting shell body 21 close to the inner shell 5, and the position of the slot 22 corresponds to the position of the block 58; threaded holes 23 are provided at both ends of the side of the first connecting shell body 21 close to the inner shell 5, and the two threaded holes 23 are threadedly connected with positioning bolts 7, and the positions of the two positioning bolts 7 correspond to the positions of the two positioning holes 54 respectively, and the diameter of the nut of the positioning bolt 7 corresponds to the diameter of the positioning hole 54, and the width of the nut of the positioning bolt 7 is the same as the depth of the sleeve; a center column 24 is provided in the middle of the side of the first connecting shell body 21 close to the inner shell 5, and the position of the center column 24 corresponds to the position of the center hole 50.

[0044] By adopting the above technical solution, the two positioning bolts 7 are respectively threadedly connected with the two threaded holes 23 of the first connecting shell body 21, and then the first connecting shell body 21 is moved to move the nuts of the two positioning bolts 7 to the positioning holes 54 respectively, and at this time the center column 24 is also moved into the center hole 50; the ferrules of the two positioning holes 54 are arranged opposite to each other, and after the nuts of the positioning bolts 7 enter the positioning holes 54, the first connecting shell body 21 is slightly rotated, so that the first connecting shell body 21 is rotated first with the center column 24 as the center, and the nuts of the two positioning bolts 7 are respectively moved and clamped into the two In the two ferrules, the two ferrules can fix the two positioning bolts 7. When the first connecting shell body 21 is docked with the inner shell body 51, the block 58 of the inner shell body 51 can be engaged with the slot 22, and cooperate with the connection of the positioning bolts 7 and the ferrules to realize the connection between the first connecting shell 2 and the inner shell 5; the two ferrules can prevent the positioning bolts 7 from moving, thereby increasing the stability of the connection between the first connecting shell 2 and the inner shell 5, and the block 58 cooperates with the slot 22 to prevent the first connecting shell 2 from rotating, thereby preventing the positioning bolts 7 from detaching from the ferrule, and all accessories that affect the appearance, such as screws, are hidden.

[0045] In this embodiment, one end of the inner shell body 51 is provided with a connection hole 55 for connecting with the blade 1, and a connection column 59 is provided above the connection hole 55, and one end of the connection column 59 is fixedly connected to the inner shell body 51;

[0046] A positioning protrusion 56 is provided on one side of the inner shell body 51 away from the connecting column 59. The positioning protrusion 56 is located at one end of the inner shell body 51 away from the connecting hole 55. A positioning protrusion 57 is provided on one end of the inner shell body 51 away from the positioning protrusion 56. The positioning protrusion 57 and the positioning protrusion 56 are located on the same horizontal line.

[0047] There are two locking pieces 6, one of which is integrally arranged with the inner shell body 51, and the other locking piece 6 is fixedly connected to the inner shell body 51 by bolts; the locking piece 6 includes a locking piece body 61, the length of which is smaller than the length of the inner shell body 51; one end of the locking piece 6 is provided with a through groove 1 62, and the other end is provided with a through groove 2 63, and the position of the through groove 1 62 corresponds to the positioning protrusion 2 57, and the position of the through groove 2 63 corresponds to the positioning protrusion 1 56.

[0048] By adopting the above technical solution, when the folding knife needs to be quickly disassembled, the disassembly head 102 of the auxiliary tool 10 is moved along the gap between the inner shell 5 and the second connecting shell 3 to the clamping plate 52, and the end of the clamping plate 52 away from the clamping block 58 is fixedly connected to the inner shell body 51, and the other end is suspended. The disassembly head 102 moves to the inner groove 53 and pushes the clamping plate 52 through the inner groove 53. The end of the clamping plate 52 close to the clamping block 58 is displaced under the push of the disassembly head 102, so that the clamping block 58 and the clamping groove are separated. 22 is disengaged; after the block 58 is disengaged from the slot 22, the first connecting shell body 21 is rotated to allow the two positioning bolts 7 to move out of the two slots 22, thereby allowing the first connecting shell 2 to be quickly disengaged from the inner shell 5. The operation is simple and efficient; the screwdriver wrench 103 of the auxiliary tool 10 can be used to remove the bolts connecting the inner shell body 51 and the second connecting shell 3, thereby separating the inner shell body 51 from the second connecting shell 3. This operation is stable and can also be reversed to prevent the fixed-position bolts 7 from being inaccurately adjusted in advance.

[0049] In this embodiment, the blade 1 comprises a blade body 11, and a connecting collar 13 is rotatably connected to one end of the blade body 11 away from the blade edge, and a threaded inner hole is provided on the inner side of one end of the connecting collar 13 close to the connecting hole 55, and a thread is provided on the outer side of the other end; an anti-slip groove 12 is provided on the side of the blade 1 away from the connecting collar 13;

[0050] The threaded inner hole of the connecting collar 13 is threadedly connected with the connecting bolt 8, and the connecting bolt 8 is located inside the connecting hole 55. The end of the connecting collar 13 away from the connecting bolt 8 is threadedly connected with the second connecting shell 3; two gaskets 9 are provided on the outside of the connecting bolt 8, one of which is located between the blade body 11 and the inner shell body 51, and the other is located between the blade body 11 and the second connecting shell 3; a groove is provided at one end of the first connecting shell body 21, and the position of the groove corresponds to the position of the connecting column 59;

[0051] A disassembly tool for a folding knife capable of hiding screws comprises an auxiliary tool 10. The auxiliary tool 10 comprises a tool body 101. A disassembly head 102 is provided at one end of the tool body 101, and a screwdriver wrench 103 is provided at the other end.

[0052] As indicated Fig.18By adopting the above technical solution, the through slot 1 62 of the locking piece body 61 is docked with the positioning protrusion 2 57, and the through slot 2 63 is docked with the positioning protrusion 1 56, and then the two ends of the locking piece body 61 are fixedly connected to the inner shell body 51 by multiple bolts. The two positioning protrusions can fix the position of the locking piece body 61, and increase the stability of the connection between the inner shell body 51 and the locking piece body 61; the locking piece body 61 cooperates with the inner shell body 51 to increase the overall strength of the locking of the folding knife. The specific implementation is that the locking piece 6 is formed by connecting the first locking piece 601 and the second locking piece 602, and two elastic stresses in opposite directions are applied to make it a double "bow" curvature. After the screws are tightened, the two stresses are offset. In actual operation, we only need to overcome the difference in stress to achieve the unlocking operation. Since the locking piece 6 is formed by connecting the first locking piece 601 and the second locking piece 602, and the two parts of the locking piece are slightly greater than the locking support strength of conventional products. Therefore, the locking strength of the folding knife is more than twice that of a conventional folding knife, and does not affect the unlocking feel, nor does it increase the effect of downward force on smoothness.

[0053] The working principle of the utility model is as follows: the two positioning bolts 7 are respectively threadedly connected with the two threaded holes 23 of the first connecting shell body 21, and then the first connecting shell body 21 is moved to move the nuts of the two positioning bolts 7 to the positioning holes 54 respectively, and at this time the center column 24 is also moved into the center hole 50; the ferrules of the two positioning holes 54 are arranged opposite to each other, and after the nuts of the positioning bolts 7 enter the positioning holes 54, the first connecting shell body 21 is slightly rotated, so that the first connecting shell body 21 is rotated with the center column 24 as the center, and the two positioning bolts 7 are rotated. The nuts are moved and inserted into the two ferrules respectively, and the two ferrules can fix the two positioning bolts 7. When the first connection shell body 21 is connected to the inner shell body 51, the block 58 of the inner shell body 51 can be engaged with the slot 22, and cooperate with the connection of the positioning bolt 7 and the ferrule to realize the connection between the first connection shell 2 and the inner shell 5; the two ferrules can prevent the positioning bolt 7 from moving, thereby increasing the stability of the connection between the first connection shell 2 and the inner shell 5, and the block 58 cooperates with the slot 22 to prevent the first connection shell 2 from rotating, thereby preventing the positioning bolt 7 from being separated from the ferrule;

[0054] When the folding knife needs to be quickly disassembled, the disassembly head 102 of the auxiliary tool 10 is moved along the gap between the inner shell 5 and the second connecting shell 3 to the clamping plate 52. The end of the clamping plate 52 away from the clamping block 58 is fixedly connected to the inner shell body 51, and the other end is in a suspended state. The disassembly head 102 moves to the inner groove 53 and pushes the clamping plate 52 through the inner groove 53. The end of the clamping plate 52 close to the clamping block 58 is displaced under the push of the disassembly head 102, so that the clamping block 58 is separated from the clamping groove 22; after the clamping block 58 is separated from the clamping groove 22, the first connecting shell body 21 is rotated to move the two positioning bolts 7 out of the two clamping grooves 22, so that the first connecting shell 2 and the inner shell 5 are quickly separated. The operation is simple and will not damage the shell; the bolts connecting the inner shell body 51 and the second connecting shell 3 can be removed by the screwdriver wrench 103 of the auxiliary tool 10, so that the inner shell body 51 and the second connecting shell 3 are separated;

[0055] The through slot 1 62 of the locking piece body 61 is connected with the positioning protrusion 2 57, and the through slot 2 63 is connected with the positioning protrusion 1 56, and then the two ends of the locking piece body 61 are fixedly connected to the inner shell body 51 by multiple bolts. The two positioning protrusions can fix the position of the locking piece body 61 and increase the stability of the connection between the inner shell body 51 and the locking piece body 61; the locking piece body 61 cooperates with the inner shell body 51 to increase the overall strength of the folding knife.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A folding knife capable of concealing screws, characterized in that: The blade (1) comprises an inner shell (5) and a second connecting shell (3) respectively provided on two sides of the blade (1); a space for the blade (1) to move is provided between the inner shell (5) and the second connecting shell (3); a first connecting shell (2) is provided on a side of the inner shell (5) away from the blade (1); a locking plate (6) is fixedly connected to a side of the inner shell (5) close to the blade (1); and a pocket clip (4) is fixedly connected to a side of the first connecting shell (2) away from the inner shell (5); The inner shell (5) comprises an inner shell body (51), the two ends of the inner shell body (51) being fixedly connected to the second connecting shell (3) by means of a plurality of bolts, a clamping plate (52) being provided on a side of the inner shell body (51) close to the first connecting shell (2), one end of the clamping plate (52) being provided with an inner groove (53), and a clamping block (58) being fixedly connected to a side of the clamping plate (52) close to the inner groove (53); positioning holes (54) being provided on both ends of the inner shell body (51), and a clamping sleeve being provided on one side of the two positioning holes (54); and a center hole (50) being provided in the middle of a side of the inner shell body (51) close to the first connecting shell (2); The first connecting shell (2) comprises a first connecting shell body (21), a side of the first connecting shell body (21) close to the inner shell (5) is fixedly connected with a slot (22), the position of the slot (22) corresponding to the position of the block (58); threaded holes (23) are provided at both ends of the side of the first connecting shell body (21) close to the inner shell (5), the two threaded holes (23) are threadedly connected with positioning bolts (7), the positions of the two positioning bolts (7) respectively correspond to the positions of the two positioning holes (54), the diameter of the nut of the positioning bolt (7) corresponds to the diameter of the positioning hole (54), and the width of the nut of the positioning bolt (7) is the same as the depth of the clamping sleeve; a center column (24) is provided in the middle of the side of the first connecting shell body (21) close to the inner shell (5), the position of the center column (24) corresponds to the position of the center hole (50).

2. The folding knife with concealed screws according to claim 1, characterized in that: One end of the inner shell body (51) is provided with a connection hole (55) for connecting to the blade (1), and a connection column (59) is provided above the connection hole (55), and one end of the connection column (59) is fixedly connected to the inner shell body (51).

3. The folding knife with concealed screws according to claim 2, characterized in that: A positioning protrusion 1 (56) is provided on a side of the inner shell body (51) away from the connecting column (59), and the positioning protrusion 1 (56) is located at an end of the inner shell body (51) away from the connecting hole (55). A positioning protrusion 2 (57) is provided on an end of the inner shell body (51) away from the positioning protrusion 1 (56), and the positioning protrusion 2 (57) and the positioning protrusion 1 (56) are located on the same horizontal line.

4. The folding knife with concealed screws according to claim 3, characterized in that: Two locking pieces (6) are provided, one of which is integrally arranged with the inner shell body (51), and the other locking piece (6) is fixedly connected to the inner shell body (51) by means of bolts; the locking piece (6) comprises a locking piece body (61), the length of which is shorter than the length of the inner shell body (51); a through slot 1 (62) is provided at one end of the locking piece (6), and a through slot 2 (63) is provided at the other end, and the position of the through slot 1 (62) corresponds to the second positioning protrusion (57), and the position of the through slot 2 (63) corresponds to the first positioning protrusion (56).

5. The folding knife with concealed screws according to claim 4, characterized in that: The blade (1) comprises a blade body (11), one end of the blade body (11) away from the blade edge is rotatably connected to a connecting collar (13), the inner side of one end of the connecting collar (13) close to the connecting hole (55) is provided with a threaded inner hole, and the outer side of the other end is provided with a thread; and an anti-slip groove (12) is provided on the side of the blade (1) away from the connecting collar (13).

6. The folding knife with concealed screws according to claim 5, characterized in that: The threaded inner hole of the connecting collar (13) is threadedly connected to the connecting bolt (8), the connecting bolt (8) is located inside the connecting hole (55), and one end of the connecting collar (13) away from the connecting bolt (8) is threadedly connected to the second connecting shell (3); two gaskets (9) are provided on the outside of the connecting bolt (8), one of the gaskets (9) is located between the blade body (11) and the inner shell body (51), and the other gasket (9) is located between the blade body (11) and the second connecting shell (3); a groove is provided at one end of the first connecting shell body (21), and the position of the groove corresponds to the position of the connecting column (59).

7. A disassembly tool for a folding knife capable of concealing screws according to any one of claims 1 to 6, characterized in that: The auxiliary tool (10) comprises a tool body (101), wherein a disassembly head (102) is provided at one end of the tool body (101) and a screwdriver wrench (103) is provided at the other end.

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