A utility knife that is easy to take and put

Abstract

The present application discloses a utility knife that is easy to take and put, belonging to the technical field of utility knives, comprising a housing, a blade movably installed in the housing, a notch for the blade to extend out of the head of the housing, a drawstring wrapped around a winding assembly installed in the housing, the winding assembly provides a force for the drawstring to maintain a wound state, the free end of the drawstring passes through the tail of the housing and is connected to a hook; when the housing or the hook is subjected to force, the length of the rope changes and thus the distance between the housing and the hook changes. The addition of a winding assembly and a hook allows the present application to be stored in a hanging manner and can be used directly without repeated taking.

Description

Technical Field

[0001] The present application relates to the technical field of utility knives, and in particular to a utility knife that is easy to take and put. Background Art

[0002] The utility knife is a common tool, especially in the office, and is one of the essential office tools. It is mainly used to cut soft things. It is mostly composed of a plastic handle and a blade. The blade is mostly beveled and has a pull-out structure. If it is blunt, it can be broken along the line of the blade, and a new blade will appear, which is convenient for use. When the utility knife is used normally, only the tip of the blade is usually used. Cutting, carving, and dotting are the main functions. Because the blade is very brittle, it cannot be extended too long when used. In addition, the hardness and durability of the blade also vary due to the different textures of the blade. After use, most utility knives are placed in storage racks. Because there are many tools inside, it is difficult to find. If a utility knife is needed in workshop operations, there is also the problem of having nowhere to put it after use.

[0003] Related prior art, such as Chinese patent application "A utility knife that is easy to take and put", application number: CN202022661702.8; discloses a shell and a knife holder fixed on the shell, one side of the shell is provided with a mounting seat, a mounting frame is fixed on the mounting seat, and a magnetic suction piece is installed on the mounting frame; the mounting frame is provided with a mounting groove, the magnetic suction piece is placed in the mounting groove, the outer wall of the mounting frame is provided with a plurality of support members at equal intervals in a ring, the bottom end of the support member is fixed on the mounting seat, and one side of the mounting seat is also provided with a hanging hole, which is used to connect an external hanging rope. The utility model is a utility knife that is easy to take and put, and a magnetic suction piece is installed on its shell, which can adsorb the shell on metal. Through this function, the shell is adsorbed on the side wall of the storage basket, so as to facilitate the taking and putting of the utility knife, and the used utility knife can be adsorbed on the metal shell of the equipment during work, which solves the problem that the utility knife has nowhere to be placed after use and is easy to lose. The shell is also connected with a hanging rope through the hanging hole, and the shell can be directly hung on the hook.

[0004] The technical solution of the above patent application can solve the problem of inconvenient storage and access of utility knives to a certain extent. However, there is still room for further improvement. Taking into account the user's usage habits, the structure of the utility knife can be improved to make it more convenient for users to use. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a utility knife that is easy to take out and put away, and to add a winding component and a hook so that the present application can be stored in a hanging manner and can be used directly without having to take it out repeatedly.

[0006] The technical solution adopted in the present application is: a utility knife that is easy to take and put, including a shell, a blade is movably installed in the shell, the head of the shell is provided with a slot for the blade to extend out, a pull rope wrapped around a winding assembly is installed in the shell, the winding assembly provides force for the pull rope to maintain a retracted and wound state, the free end of the pull rope passes through the tail of the shell and is connected to a hook; when the shell or the hook is subjected to force, the length of the rope changes and thus the distance between the shell and the hook changes.

[0007] Compared with the prior art, the advantages of the present application are that, firstly, a hook is designed in the technical solution of the present application, and the storage and storage of the utility knife can be realized through the hook. Compared with the traditional method of placing the utility knife in a tool box or a bag, the technical solution of the present application effectively expands the storage space of the utility knife, and the user can hang it on the wall, belt, key ring and other locations according to the convenience of use. Secondly, the present application further adds a pull rope, the pull rope is wound on the winding assembly, and the winding assembly provides the pull rope with a force to maintain the winding state, and the free end of the pull rope passes through the tail of the shell and is connected to the hook. Then, when the utility knife of the present application is not subjected to additional force from the user, its hook is set close to the tail of the shell, that is, the overall volume increase of the present application is not large. When the user pulls the shell or the hook, the force on the pull rope at this time will drive the winding assembly to work, release the pull rope, and make the length of the pull rope reach the length required by the user. Thereby, the hook is relatively separated from the shell, and the user can use the utility knife without removing the hook. After use, the user releases the shell, and the shell automatically returns to the hook under the action of the reel assembly. Thus, the design of the present application effectively expands the storage and use of the utility knife. The user can hang the utility knife in a convenient location, and does not need to remove the hook before and after use, but can directly use the utility knife by pulling the drawstring.

[0008] In some embodiments of the present application, the shell is provided with a mounting post, and the winding assembly is a disc-shaped structure sleeved outside the mounting post, and the winding assembly rotates around the mounting post when in operation.

[0009] In some embodiments of the present application, the winding assembly includes a disc and a torsion spring, one end of the torsion spring is embedded in the mounting column, and the other end of the torsion spring is connected to the disc. The torsion spring provides a driving force for the disc to rotate.

[0010] In some embodiments of the present application, a mounting groove is provided in the middle of the disc member, the torsion spring is installed in the mounting groove, and the mounting column passes through the central axis of the mounting groove.

[0011] In some embodiments of the present application, the outer surface of the disc member is provided with a circle of annular winding grooves around its circumference, and the draw rope is regularly wound outside the winding grooves. The winding grooves are provided with fixing holes, and the fixed end of the draw rope passes through the fixing holes and is limited at the fixing holes by tying a knot. This is a preferred solution for installing the draw rope in the present application, and the fixed end of the draw rope can be easily and conveniently installed with the disc member.

[0012] In some embodiments of the present application, a wear-resistant ring is embedded in the tail end of the shell, the pull rope passes through the shell through the wear-resistant ring, the free end of the pull rope is connected to the column head, the diameter of the column head is larger than the diameter of the wear-resistant ring, and the column head is connected to the hook. By setting the column head, it is ensured that the free end of the pull rope is always located outside the shell and cannot pass through the wear-resistant ring and be pulled into the shell. The pull rope of the present application will be pulled repeatedly, so considering that the shell is easily worn, the present application further sets a wear-resistant ring, and the pull rope passes through the shell through the wear-resistant ring to extend the service life of the product.

[0013] In some embodiments of the present application, a buffer ring is provided between the column head and the wear-resistant ring, the wear-resistant ring is located outside the housing, and the free end of the pull rope passes through the wear-resistant ring, the buffer ring and the column head in sequence. The provision of the wear-resistant ring in the present application enables the housing to play a shock-absorbing and buffering role when it is quickly retracted relative to the hook.

[0014] In some embodiments of the present application, a slide rail is provided in the shell, and the blade is installed on the slide rail and can move along the slide rail under force; a slide groove adapted to the slide rail is opened on the surface of one side of the shell, and a push button installation groove connected to the blade is provided at the slide groove, and movement of the push button drives the blade to move synchronously.

[0015] In some embodiments of the present application, a slot is provided at one end of the slide slot near the slot, and the push button can be inserted into or out of the slot under force. In the present application, by adding a slot structure, when the user inserts the push button into the slot, the blade is kept extending out of the slot under the action of the push button and the slot, and is kept in a use state.

[0016] In some embodiments of the present application, the inner end of the push button passes through the blade, a torsion spring is installed in the housing, the torsion spring is connected to the push button, and the torsion spring provides a force for the push button to move away from the notch. The housing includes a left housing and a right housing, and the left housing and the right housing are spliced ​​together; the inner wall of the left housing is provided with a plurality of clamping columns, and the inner wall of the right housing is provided with a plurality of clamping holes adapted to the plurality of clamping columns, and the left housing and the right housing are clamped with the clamping columns and the clamping holes.

[0017] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the structure of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the application in use;

[0021] Figure 3 This is the front view of the application;

[0022] Figure 4 Schematic diagram of the internal structure of this application

[0023] Figure 5 It is a schematic diagram of the structure of the left shell in this application;

[0024] Figure 6 It is a schematic diagram of the structure of the right shell in this application.

[0025] Among them, the specific descriptions of the figure numbers are as follows: 1. shell; 2. blade; 3. notch; 4. pull rope; 5. hook; 6. mounting column; 7. disc; 8. torsion spring; 9. mounting groove; 10. wear-resistant ring; 11. column head; 12. buffer ring; 13. slide rail; 14. slide groove; 15. clamping slot; 16. torsion spring; 17. push button; 18. clamping column; 19. clamping hole. DETAILED DESCRIPTION

[0026] The present application is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] A utility knife that is easy to take and put, embodiment 1 Figure 1 , Figure 2As shown: it includes a shell 1, a blade 2 is movably installed in the shell 1, a notch 3 is opened at the head of the shell 1 for the blade 2 to extend, a drawstring 4 is installed in the shell 1 and is wound on the winding assembly, the winding assembly provides the drawstring 4 with a force to keep the drawstring 4 in a wound state, and the free end of the drawstring 4 passes through the tail of the shell 1 and is connected to a hook 5; the technical solution of the present application is designed with a hook 5, and the storage and storage of the utility knife can be realized through the hook 5. Compared with the traditional method of placing the utility knife in a tool box or a bag, the technical solution of the present application effectively expands the storage space of the utility knife, and the user can hang it on the wall, belt, key ring, etc. according to the convenience of use.

[0029] When the shell 1 or the hook 5 is subjected to force, the length of the rope is changed, and then the distance between the shell 1 and the hook 5 is changed. Then, when the utility knife of the present application is not subjected to additional force from the user, the hook 5 is arranged close to the tail of the shell 1, that is, the overall volume increase of the present application is not large. When the user pulls the shell 1 or the hook 5, the force on the pull rope 4 at this time will drive the winding assembly to work, release the pull rope 4, and make the length of the pull rope 4 reach the length required by the user. Thereby, the hook 5 is relatively separated from the shell 1, and the user can use the utility knife without removing the hook 5. Moreover, after use, when the user lets go of the shell 1, the shell 1 will automatically return to the location of the hook 5 under the action of the winding assembly.

[0030] At this point, the design scheme of the present application effectively expands the storage and use methods of the utility knife. The user can hang the utility knife in a convenient location for access, and there is no need to remove the hook 5 before and after use. The utility knife can be used directly by pulling the pull rope 4.

[0031] In the drawings of the present application Figure 1 , Figure 3 Two hooks 5 with different structures are respectively provided. In the solution of the present application, the hook 5 can select any hook 5 in the prior art according to the requirements.

[0032] Embodiment 2, as Figures 1 to 4 As shown, the housing 1 is provided with a mounting post 6, and the winding assembly is a disc-shaped structure sleeved outside the mounting post 6, and the winding assembly rotates around the mounting post 6 when in operation.

[0033] The winding assembly includes a disc 7 and a torsion spring 8, one end of the torsion spring 8 is embedded in the mounting column 6, and the other end of the torsion spring 8 is connected to the disc 7. The torsion spring 8 provides a driving force for the disc 7 to rotate.

[0034] The middle of the disc 7 is provided with a mounting groove 9, the torsion spring 8 is installed in the mounting groove 9, and the mounting column 6 passes through the central axis of the mounting groove 9. The outer surface of the disc 7 is provided with a circle of annular winding grooves around its circumference, and the pull rope 4 is regularly wound outside the winding groove. A fixing hole is provided at the winding groove, and the fixed end of the pull rope 4 passes through the fixing hole and is limited at the fixing hole by tying a knot. This is a preferred solution for installing the pull rope 4 in the present application, and the fixed end of the pull rope 4 can be easily and conveniently installed with the disc 7.

[0035] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0036] Embodiment three, as Figures 1 to 4 As shown, a wear-resistant ring 10 is embedded in the tail end of the shell 1, and the pull rope 4 passes through the shell 1 through the wear-resistant ring 10. The free end of the pull rope 4 is connected to the column head 11, and the diameter of the column head 11 is larger than the diameter of the wear-resistant ring 10. The column head 11 is connected to the hook 5. By setting the column head 11, it is ensured that the free end of the pull rope 4 is always located outside the shell 1, and cannot pass through the wear-resistant ring 10 and be pulled into the shell 1. The pull rope 4 of the present application will be pulled repeatedly, so considering that the shell 1 is easily worn, the present application further sets a wear-resistant ring 10, and the pull rope 4 passes through the shell 1 through the wear-resistant ring 10 to extend the service life of the product.

[0037] A buffer ring 12 is provided between the column head 11 and the wear-resistant ring 10, the wear-resistant ring 10 is located outside the housing 1, and the free end of the pull rope 4 passes through the wear-resistant ring 10, the buffer ring 12 and is connected to the column head 11 in sequence. The provision of the wear-resistant ring 10 in the present application enables the housing 1 to play a shock-absorbing and buffering role when the housing 1 is quickly retracted relative to the hook 5.

[0038] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0039] Embodiment 4, as Figures 1 to 6 As shown, a slide rail 13 is arranged in the shell 1, and the blade 2 is installed on the slide rail 13 and the blade 2 can move along the slide rail 13 under force; a slide groove 14 adapted to the slide rail 13 is opened on one side surface of the shell 1, and a push button 17 connected to the blade 2 is installed in the groove 9 on the slide groove 14, and the movement of the push button 17 drives the blade 2 to move synchronously.

[0040] The end of the slide 14 near the slot 3 is provided with a slot 15, and the push button 17 can be inserted into or out of the slot 15 under force. In the present application, by adding the slot 15 structure, the user inserts the push button 17 into the slot 15 during use, and the blade 2 is kept extending out of the slot 3 under the action of the push button 17 and the slot 15, and is kept in a use state.

[0041] The inner end of the push button 17 passes through the blade 2, and a torsion spring 16 is installed in the housing 1, which is connected to the push button 17, and provides a force for the push button 17 to move away from the notch 3. The housing 1 includes a left housing and a right housing, and the left housing and the right housing are spliced ​​together; the inner wall of the left housing is provided with a plurality of clamping columns 18, and the inner wall of the right housing is provided with a plurality of clamping holes 19 adapted to the plurality of clamping columns 18, and the left housing and the right housing are clamped together through the clamping columns 18 and the clamping holes 19.

[0042] The other contents of the fourth embodiment are the same as those of any of the above embodiments.

[0043] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A utility knife that is easy to take and put, characterized in that: The invention comprises a shell (1), a blade (2) being movably mounted in the shell (1), a slot (3) being provided at the head of the shell (1) for the blade (2) to extend out, a drawstring (4) wound on a reeling assembly being mounted in the shell (1), the reeling assembly providing a force for the drawstring (4) to maintain a reeled state, the free end of the drawstring (4) passing through the tail of the shell (1) and connected to a hook (5); when the shell (1) or the hook (5) is subjected to a force, the length of the rope is changed, thereby changing the distance between the shell (1) and the hook (5).

2. The utility knife that is easy to take and put according to claim 1, characterized in that: The housing (1) is provided with a mounting post (6); the winding assembly is a disc-shaped structure sleeved outside the mounting post (6); and the winding assembly rotates around the mounting post (6) when in operation.

3. The utility knife that is easy to take and put according to claim 2, characterized in that: The winding assembly comprises a disc member (7) and a torsion spring (8), one end of the torsion spring (8) is embedded in the mounting column (6), and the other end of the torsion spring (8) is connected to the disc member (7).

4. The utility knife that is easy to take and put according to claim 3, characterized in that: A mounting groove (9) is provided in the middle of the disc member (7), the torsion spring (8) is mounted in the mounting groove (9), and the mounting column (6) passes through the central axis of the mounting groove (9).

5. A utility knife that is easy to take and put according to claim 3 or 4, characterized in that: The outer surface of the disc member (7) is provided with a circle of annular winding grooves around its circumference, and the pull rope (4) is regularly wound outside the winding grooves.

6. The utility knife that is easy to take and put according to claim 1, characterized in that: A wear-resistant ring (10) is embedded in the rear end of the housing (1), the pull rope (4) passes through the housing (1) through the wear-resistant ring (10), the free end of the pull rope (4) is connected to a column head (11), the diameter of the column head (11) is larger than the diameter of the wear-resistant ring (10), and the column head (11) is connected to a hook (5).

7. The utility knife that is easy to take and put according to claim 6, characterized in that: A buffer ring (12) is provided between the column head (11) and the wear-resistant ring (10); the wear-resistant ring (10) is located outside the housing (1); and the free end of the pull rope (4) passes through the wear-resistant ring (10), the buffer ring (12) and is connected to the column head (11) in sequence.

8. The utility knife that is easy to take and put according to claim 1, characterized in that: A slide rail (13) is arranged in the shell (1), and the blade (2) is installed on the slide rail (13) and can move along the slide rail (13) when the blade (2) is subjected to force; a slide groove (14) adapted to the slide rail (13) is provided on one side surface of the shell (1), and a push button (17) connected to the blade (2) is installed in the slide groove (14), and the movement of the push button (17) drives the blade (2) to move synchronously.

9. The utility knife that is easy to take and put according to claim 8, characterized in that: A locking groove (15) is provided at one end of the slide groove (14) close to the notch (3), and the push button (17) can be inserted into or removed from the locking groove (15) under force.

10. The utility knife that is easy to take and put according to claim 9, characterized in that: The inner end of the push button (17) passes through the blade (2), and a torsion spring (16) is installed in the housing (1). The torsion spring (16) is connected to the push button (17), and the torsion spring (16) provides a force for the push button (17) to move away from the notch (3).

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