A cutting tool

Abstract

The utility model relates to a tool, including handle and blade, handle includes handle body and two outer handle pieces, and handle body is provided with the spigot, and the blade is equipped with the connecting piece, and the connecting piece is provided with the limit hole, and the inboard side of one outer handle piece is equipped with the first limit post, and the inboard side of two outer handle pieces is equipped with the second limit post oppositely, and the connecting piece inserts into the spigot, and the first limit post inserts into the limit hole, and the second limit post respectively passes through the through -hole and is opposite to the side wall of the connecting piece and reaches the resistance. The utility model discloses a tool through the first limit post and blocks the connecting piece and moves to front and back, up and down direction, and through the second limit post and blocks the connecting piece and moves left and right, and the first limit post of conical platform structure can reach more closely with the limit hole and cooperate, thereby can better block the connecting piece and move, guarantee that the connecting piece can not produce displacement after assembling with handle, and the tool assembly is more stable, and the connecting piece does not need to design according to the handle outer contour, makes the connecting piece size small, and the tool is light and clever, and the cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of cutting tool technology, and more specifically relates to a cutting tool. Background Technology

[0002] A knife is an everyday tool used for cutting objects. The existing knife structure generally includes a handle and a blade connected to the handle. The handle includes two opposing clamps, and the blade has a connecting piece at the rear end. During assembly, the two clamps are respectively attached to the left and right sides of the connecting piece, and then the two clamps are connected to the connecting piece by rivets, thus completing the assembly of the blade and the handle.

[0003] However, existing cutting tools still have the following shortcomings: 1. Existing cutting tools achieve a tight fit between the connecting holes of the rivets and connecting plates to ensure the connection stability between the connecting plates and the two clamping plates. However, once a gap occurs between the connecting holes of the rivets and the connecting plates, the cutting tool will easily become loose, making the tool structure less stable and affecting its use; 2. The outer contour of the connecting plate at the rear end of the cutting tool generally needs to be consistent with the outer contour of the clamping plate. This inevitably results in a larger size of the connecting plate at the rear end of the cutting tool, which not only increases the cost but also the weight of the entire tool; 3. During the assembly of existing cutting tools, the connecting holes of the two clamping plates and the connecting plates must be aligned before the rivets can be connected. However, since there is no limiting mechanism between the two clamping plates and the connecting plates, the two clamping plates can easily shift relative to the connecting plates, making it difficult to keep the connecting holes of the two clamping plates and the connecting plates aligned, thus hindering the connection of the rivets. Utility Model Content

[0004] In view of at least one deficiency of the prior art, the purpose of this utility model is to provide a tool with a robust structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cutting tool includes a handle and a blade connected to the handle. The handle includes a handle body and two outer handle plates respectively disposed on opposite sides of the handle body. One end face of the handle body has an insertion port, and the end of the blade has a connecting plate. The side wall of the connecting plate has a limiting hole. The inner side of one outer handle plate has a first limiting post, which is a truncated cone structure. The inner sides of both outer handle plates are provided with several second limiting posts. The handle body has a clearance hole corresponding to the position of the first limiting post, and the handle body has a through hole corresponding to the position of the second limiting post of the two outer handle plates. The connecting plate is inserted into the insertion port, and the first limiting post passes through the clearance hole and is inserted into the limiting hole and cooperates with the limiting hole. The second limiting posts of the two outer handle plates pass through the through holes on the corresponding sides of the handle body and abut against the opposite side wall of the connecting plate.

[0006] In the above solution, by inserting the first limiting post through the clearance hole into the limiting hole of the connecting piece, and simultaneously having the second limiting posts of the two outer shank pieces pass through the through holes on the corresponding sides of the shank body and abut against the opposite sidewalls of the connecting piece, the first limiting post prevents the connecting piece from moving forward and backward or up and down relative to the insertion port. The second limiting posts of the two outer shank pieces abut against the left and right sides of the connecting piece, thus preventing the connecting piece from moving left and right relative to the insertion port. This ensures that the connecting piece cannot be displaced in any direction after assembly with the tool holder, guaranteeing the assembly stability of the connecting piece and the tool holder. Furthermore, the first limiting post is designed as a truncated cone structure, with a small diameter at the head end and a large diameter at the tail end. This allows the first limiting post to be inserted more easily into the limiting hole of the connecting piece and achieves a tighter fit between the outer side of the first limiting post and the inner side of the limiting hole, thereby better preventing the connecting piece from moving and making the tool assembly more stable. In addition, the connecting piece of this invention does not need to be designed according to the outer contour of the tool holder, resulting in a small connecting piece size, a lightweight tool, and low cost.

[0007] Furthermore, the aforementioned second limiting post is a truncated cone structure, and the shape of the through hole matches the shape of the second limiting post. By setting the second limiting post as a truncated cone structure, the diameter of the head end face of the second limiting post is small and the diameter of the tail end face is large. This allows the second limiting post to be inserted into the through hole more easily, and allows the outer side of the second limiting post to fit tightly with the inner side of the through hole, so as to prevent the two outer handles from shifting relative to the handle body, improve the installation stability of the two outer handles and the handle body, and make assembly more convenient.

[0008] Furthermore, there are two first limiting posts, and three second limiting posts are arranged opposite each other on the inner side of the two outer shank plates. Each second limiting post and the first limiting post are arranged along the length direction of the outer shank plate, and each first limiting post is located between two adjacent second limiting posts, so that the second limiting posts and the first limiting posts can be evenly arranged to further improve the installation stability of the tool.

[0009] Furthermore, the two outer shank plates mentioned above have limiting notches on the inner side of the end near the blade, and the two limiting notches are joined to form a blade limiting groove. The outer side of the blade tail cooperates with the blade limiting groove, thereby improving the connection stability between the blade and the shank under the limiting effect of the blade limiting groove, and further preventing the blade from loosening.

[0010] Furthermore, the inner sides of the two outer handle plates are respectively provided with locking blocks, and the outer sides of the handle body are respectively provided with locking slots corresponding to the locking block positions of the two outer handle plates. The locking blocks of the two outer handle plates are respectively inserted into the locking slots on the corresponding sides of the handle body. The locking slots can prevent the locking blocks of the two outer handle plates from displacing relative to the handle body, thereby further improving the connection stability between the two outer handle plates and the handle body.

[0011] Furthermore, the aforementioned locking block has a U-shaped structure. The U-shaped locking block can better prevent the two outer handle plates from shifting relative to the handle body. After the U-shaped locking block is engaged with the slot, the internal space of the U-shaped locking block can be almost closed, which can better prevent dust from entering the handle body.

[0012] Furthermore, the two outer handle plates mentioned above are connected to the handle body by several connecting pins, thereby realizing the connection between the two outer handle plates and the handle body.

[0013] Furthermore, the aforementioned connecting pins are rivets, and the number of rivets is the same as the number of the second limiting posts. Both the second limiting posts and the connecting plates of the two outer shank pieces are provided with connecting holes. The rivets are riveted into the connecting holes of the second limiting posts and the connecting plates, thereby completing the assembly of the two outer shank pieces and the shank body, ensuring the assembly stability of the two outer shank pieces and the shank body. Moreover, by riveting the rivets into the connecting holes of the connecting plates, the rivets also further limit the connection of the connecting plates, thereby further improving the connection stability between the connecting plates and the tool holder.

[0014] Furthermore, the outer sides of the two aforementioned outer shank plates are respectively provided with cap grooves corresponding to the ends of the rivets, and the ends of the rivets are located inside the cap grooves. This ensures that the ends of the rivets do not protrude outside the outer shank plates, making the tool structure more compact and the handle more comfortable to hold.

[0015] Furthermore, the handle and the two outer handle plates mentioned above are all made of plastic. Compared with existing wooden handles, plastic is lighter, more resistant to corrosion and dirt, making the knife easier to grip and use, more durable, and easier to clean.

[0016] The beneficial effects of the knife of this utility model are as follows: 1. Not only are the connecting holes of the connecting piece limited by the rivets, but the first limiting post also restricts the connecting piece from moving forward, backward, up, or down, while the second limiting posts of the two outer shank plates restrict the connecting piece from moving left or right. This is equivalent to achieving multiple limiting on the connecting piece, which can better ensure the connection stability between the connecting piece and the tool holder.

[0017] 2. The connecting piece of the blade does not need to be designed according to the outer contour of the tool holder, which makes the connecting piece small, the tool lightweight, and the cost low.

[0018] 3. The first and second limiting posts are set as truncated cone structures, so that the first limiting post and the limiting hole and the second limiting post and the through hole can be more tightly fitted, ensuring that the connecting piece and the two outer shank pieces cannot be displaced, making the tool structure more stable and easier to use.

[0019] 4. With the first limiting post limiting the connecting piece, and the second limiting post and the locking block limiting the outer shank, the connecting hole of the second limiting post and the connecting hole of the connecting piece can always be aligned, thus facilitating the riveting of the rivet into the connecting hole of the second limiting post and the connecting piece, making the tool assembly operation more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the cutting tool according to an embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the knife handle according to an embodiment of the present utility model.

[0022] Figure 3 This is an exploded view of the knife handle according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the blade structure of an embodiment of the present invention.

[0024] Figure 5 This is a sectional view of AA in section 1.

[0025] The annotations in the attached figures are explained as follows: 1. Handle; 11. Handle body; 111. Insert; 112. Clearance hole; 113. Slot; 114. Through hole; 12. Outer handle plate; 120. Limiting notch; 1201. Blade limiting groove; 121. First limiting post; 122. Second limiting post; 123. Locking block; 124. Cap groove; 2. Blade; 21. Connecting piece; 210. Connecting hole; 211. Limiting hole; 31. Rivet. Detailed Implementation

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 The structure of the cutting tool in this embodiment is as follows: Figure 1-5 As shown, the tool includes a handle 1 and a blade 2 connected to the handle 1. The handle 1 includes a handle body 11 and two outer handle plates 12 respectively located on the left and right sides of the handle body 11. The front end face of the handle body 11 has an insertion port 111. The rear end of the blade 2 has a connecting piece 21. The side wall of the connecting piece 21 has a limiting hole 211. The inner side of the outer handle plate 12 located on the right side has a first limiting post 121. The first limiting post 121 has a frustum-shaped structure. Several second limiting posts are arranged opposite each other on the inner sides of the two outer handle plates 12. The handle 11 has a clearance hole 112 at the position of the first limiting post 121, and a through hole 114 at the position of the second limiting post 122 of the two outer handle pieces 12. The connecting piece 21 is inserted into the socket 111. At the same time, the first limiting post 121 passes through the clearance hole 112 and is inserted into the limiting hole 211 and cooperates with the limiting hole 211. The second limiting posts 122 of the two outer handle pieces 12 pass through the through holes 114 on the corresponding side of the handle 11 and abut against the opposite side wall of the connecting piece 21.

[0029] In the above scheme, by inserting the first limiting post 121 through the clearance hole 112 into the limiting hole 211 of the connecting piece 21, and at the same time, the second limiting posts 122 of the two outer handle pieces 12 respectively pass through the through holes 114 on the corresponding side of the handle 11 and abut against the opposite side wall of the connecting piece 21, the first limiting post 121 prevents the connecting piece 21 from moving forward and backward and up and down relative to the insertion port 111, while the second limiting posts 122 of the two outer handle pieces 12 abut against the left and right sides of the connecting piece 21, thereby preventing the connecting piece 21 from moving left and right relative to the insertion port 111, so that the connecting piece 21 cannot be displaced in any direction after being assembled with the tool holder 1, thus ensuring the assembly stability of the connecting piece 21 and the tool holder 1. Furthermore, the first limiting post 121 is designed as a truncated cone structure, with a small diameter at the head end and a large diameter at the tail end. This allows the first limiting post 121 to be more easily inserted into the limiting hole 211 of the connecting piece 21, and enables a tighter fit between the outer side of the first limiting post 121 and the inner side of the limiting hole 211, thereby better preventing movement of the connecting piece 21 and making the tool assembly more stable. In addition, the connecting piece 21 of the blade 2 of this invention does not need to be designed according to the outer contour of the tool holder 1, the connecting piece 21 is small in size, the tool is lightweight, and the cost is low.

[0030] Specifically, there are two first limiting posts 121, and three second limiting posts 122 are arranged opposite each other on the inner side of the two outer shank plates 12. Each second limiting post 122 and the first limiting post 121 are arranged along the length direction of the outer shank plate 12, and each first limiting post 121 is located between two adjacent second limiting posts 122, so that the second limiting posts 122 and the first limiting posts 121 can be evenly arranged, so that the connecting plate 21 can be evenly stressed, thereby further improving the installation stability of the tool.

[0031] Example 2 This embodiment is a further improvement on the tool structure of Embodiment 1. The improvement lies in that, as... Figure 2 , 3 As shown, the inner sides of the front ends of the two outer shank plates 12 are respectively provided with limiting notches 120. The two limiting notches 120 are joined together to form a blade limiting groove 1201. The outer side of the tail of the blade 2 cooperates with the blade limiting groove 1201. Thus, under the limiting effect of the blade limiting groove 1201, the connection stability between the blade 2 and the shank 1 can be further improved, and the blade can be prevented from loosening.

[0032] As an improvement to this embodiment, the second limiting post 122 is a truncated cone structure, and the shape of the through hole 114 matches the shape of the second limiting post 122. By setting the second limiting post 122 as a truncated cone structure, the diameter of the head end face of the second limiting post 122 is small and the diameter of the tail end face is large. This makes it easier for the second limiting post 122 to be inserted into the through hole 144, and allows the outer side of the second limiting post 122 to fit tightly with the inner side of the through hole 144, so as to prevent the two outer handle pieces 12 from displacing relative to the handle body 11, thereby improving the installation stability of the two outer handle pieces 12 and the handle body 11, and making assembly more convenient.

[0033] In addition, the inner sides of the two outer handle plates 12 are respectively provided with locking blocks 123, and the outer side of the handle body 11 is respectively provided with locking grooves 113 that match the shape of the locking blocks 123 at the corresponding positions of the locking blocks 123 of the two outer handle plates 12. The locking blocks 123 of the two outer handle plates 12 are respectively inserted into the locking grooves 113 on the corresponding side of the handle body 11. The locking grooves 113 can prevent the locking blocks 123 of the two outer handle plates 12 from being displaced relative to the handle body 11, thereby further improving the connection stability between the two outer handle plates 12 and the handle body 11.

[0034] Specifically, the aforementioned locking block 123 has a U-shaped structure. The U-shaped locking block 123 can better prevent the two outer handle plates 12 from shifting relative to the handle body 11. After the U-shaped locking block 123 is engaged with the slot 113, the internal space of the U-shaped locking block 123 can be almost closed, which can better prevent dust from entering the handle body.

[0035] Example 3 This embodiment is a further improvement on the tool structure of Embodiment 2. The improvement is as follows: Figure 3 , 4 As shown, the two outer handle plates 12 are connected to the handle body 11 by a number of connecting pins, thereby achieving the connection between the two outer handle plates 12 and the handle body 11. The connecting pins are rivets 31, and the number of rivets 31 is the same as the number of the second limiting posts 122. Both the second limiting posts 122 and the connecting plate 21 of the two outer handle plates 12 have connecting holes 210. The rivets 31 are riveted into the connecting holes 210 of the second limiting posts 122 and the connecting plate 21, thus completing the assembly of the two outer handle plates 12 and the handle body 11, ensuring the assembly stability of the two outer handle plates 12 and the handle body 11. Furthermore, by riveting the rivets 31 into the connecting holes 210 of the connecting plate 21, the rivets 31 also further limit the connection of the connecting plate 21 to the tool holder 1, thereby further improving the connection stability of the connecting plate 21 and the tool holder 1.

[0036] In addition, the outer sides of the two outer shank plates 12 are respectively provided with cap grooves 124 corresponding to the end positions of the rivets 31. The ends of the rivets 31 are located in the cap grooves 124. This ensures that the ends of the rivets 31 do not protrude from the outside of the outer shank plates 12, making the structure of the tool more compact and the handle more comfortable to hold.

[0037] As a preferred embodiment, the handle body 11 and the two outer handle plates 12 are made of plastic, preferably ABS plastic. Compared with the existing wooden handles, plastic materials are lightweight, corrosion-resistant, and dirt-resistant, making the knife easier to grip and use, more durable, and easier to clean.

[0038] When assembling the tool of this utility model, first insert the connecting piece 21 into the socket 111, then insert the first limiting post 121 through the clearance hole 112 into the limiting hole 211, at the same time insert the second limiting post 122 of the two outer shank pieces 12 into the through hole 114, and insert the locking block 123 of the two outer shank pieces 12 into the locking groove 113, and finally rivet 31 into the connecting hole 210 of the second limiting post 122 and the connecting piece 21, thereby completing the tool assembly operation.

[0039] During the assembly operation, the connecting hole 210 of the second limiting post 122 and the connecting hole 210 of the connecting piece 21 are always aligned due to the limiting effect of the first limiting post 121 on the connecting piece 21 and the limiting effect of the second limiting post 122 and the locking block 123 on the outer shank piece 12. This makes it easier for the rivet 31 to be riveted into the connecting hole 210 of the second limiting post 122 and the connecting piece 21, thus making the assembly operation of the tool more convenient.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cutting tool, comprising a handle (1) and a blade (2) connected to the handle (1), characterized in that: The handle (1) includes a handle body (11) and two outer handle plates (12) respectively disposed on opposite sides of the handle body (11). One end face of the handle body (11) is provided with an insertion port (111). The end of the blade (2) is provided with a connecting plate (21). The side wall of the connecting plate (21) is provided with a limiting hole (211). The inner side of one of the outer handle plates (12) is provided with a first limiting post (121). The first limiting post (121) is a truncated cone structure. The inner sides of both outer handle plates (12) are provided with several second limiting posts (122) respectively. The handle body (11) is provided with the first limiting post (122) corresponding to the second limiting post (122). A clearance hole (112) is provided at the position of a limiting post (121), and a through hole (114) is provided at the position of the second limiting post (122) of the two outer handle pieces (12) on the handle body (11). The connecting piece (21) is inserted into the socket (111), and at the same time, the first limiting post (121) passes through the clearance hole (112) and is inserted into the limiting hole (211) and cooperates with the limiting hole (211). The second limiting posts (122) of the two outer handle pieces (12) pass through the through holes (114) on the corresponding side of the handle body (11) and abut against the opposite side wall of the connecting piece (21).

2. The cutting tool according to claim 1, characterized in that: The second limiting post (122) is a truncated cone structure, and the shape of the through hole (114) matches the shape of the second limiting post (122).

3. The cutting tool according to claim 1, characterized in that: There are two first limiting posts (121), and three second limiting posts (122) are arranged opposite each other on the inner side of the two outer handles (12). Each second limiting post (122) and the first limiting post (121) are arranged along the length direction of the outer handle (12), and each first limiting post (121) is located between two adjacent second limiting posts (122).

4. The cutting tool according to claim 1, characterized in that: The two outer handles (12) have limiting notches (120) on the inner side of the end near the blade (2), and the two limiting notches (120) are joined to form a blade limiting groove (1201). The outer side of the tail of the blade (2) is matched with the blade limiting groove (1201).

5. The cutting tool according to claim 1, characterized in that: The inner sides of the two outer handle pieces (12) are respectively provided with locking blocks (123), and the outer side of the handle body (11) is respectively provided with locking slots (113) corresponding to the locking blocks (123) of the two outer handle pieces (12). The locking blocks (123) of the two outer handle pieces (12) are respectively inserted into the locking slots (113) on the corresponding side of the handle body (11).

6. The cutting tool according to claim 5, characterized in that: The card block (123) has a U-shaped structure.

7. The cutting tool according to claim 1, characterized in that: The two outer handle plates (12) are respectively connected to the handle body (11) by a number of connecting pins.

8. The cutting tool according to claim 7, characterized in that: The connecting pin is a rivet (31). The second limiting post (122) of the two outer shank pieces (12) and the connecting piece (21) are provided with connecting holes (210). The rivet (31) is riveted into the connecting holes (210) of the second limiting post (122) and the connecting piece (21).

9. The cutting tool according to claim 8, characterized in that: The two outer handles (12) are respectively provided with cap grooves (124) at the end positions of the rivets (31) on the outer side, and the end of the rivets (31) is located in the cap grooves (124).

10. The cutting tool according to claim 1, characterized in that: The handle (11) and the two outer handle plates (12) are both made of plastic.

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