Blade box

Abstract

The blade box comprises a shell and a pressing part, a pressing part installation opening is formed in the shell, the pressing part is inserted into the pressing part installation opening and is movably connected with the shell, a blade push-out plate is arranged in the shell, and the pressing part is in transmission connection with the blade push-out plate. Compared with the prior art that after the blade is pushed out, the blade can be pushed out next time only by manual reset of a user, and a safety structure is lacked at a blade outlet, the blade box has the advantages that the pressing part reset spring is arranged below the pressing part, the pressing part can automatically reset after the blade is pushed out every time, and the blade can be pushed out conveniently. And the blade limiting block is arranged at the opening position of the blade box, so that the blade cannot be taken out of the blade box under the condition that the blade is not taken, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to a container for storing objects, specifically a blade box capable of partially unloading its contents. Background Technology

[0002] As a relatively dangerous yet common tool, the storage, management, and retrieval of blades still pose certain risks. To avoid danger and damage to the blade's edge, blades generally need to be stored in a blade holder after use. Existing blade holders often only function to store blades; to retrieve them, the user must manually open the holder and take the blade out. Because the blades are stacked, retrieving a single blade is somewhat inconvenient.

[0003] While existing blade holders exist to assist users in retrieving blades, these devices typically require manual resetting after removal. Furthermore, the blade exit point is often large, making it easy for the blade to fall out even when not in use. For example, in the "Window Scraper Blade Holder" disclosed in CN222474925U, the user pushes the blade out of the blade ejector via a button, but manually resetting the button is required to remove a blade. Additionally, there is no mechanism to limit the blade's movement at the ejector opening. Therefore, the blade can easily fall out due to vibration. Utility Model Content

[0004] The purpose of this invention is to design a blade holder that is simple to operate and effectively ensures that only one blade is ejected at a time. A further purpose is to ensure that the blade holder can effectively limit the movement of the blades within it under normal conditions, preventing the blades from being ejected from the holder regardless of vibration. Furthermore, the ejection structure of this invention's blade ejection device is stable and unaffected by the user's pressing force; the length of the ejected blade is only limited to the height of the pressing part when pressed down.

[0005] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0006] A blade holder includes a housing and a pressing part. The housing has a pressing part mounting port, and the pressing part is inserted into the pressing part mounting port and movably connected to the housing. The housing has a blade ejector plate, and the pressing part is drivenly connected to the blade ejector plate.

[0007] The housing is provided with a blade outlet, and the direction of the blade outlet is parallel to the movement direction of the pressing part.

[0008] Furthermore, a gear fixing shaft is installed on the housing, the gear fixing shaft is hinged to the stepped gear, the end of the pressing part is a pressing part rack, and the blade ejector plate is provided with an ejector plate rack on one side of the pressing part.

[0009] Furthermore, the gear fixing shaft does not contact the blade ejector plate, the ejector plate rack meshes with the large gear of the stepped gear, and the pressing part rack meshes with the small gear of the stepped gear.

[0010] Furthermore, the inner side of the pressing part is provided with a pressing part spring mounting head, and the inner side of the housing is provided with a housing spring fixing head. The pressing part spring mounting head and the housing spring fixing head face each other, and a pressing part reset spring is installed between the pressing part spring mounting head and the housing spring fixing head.

[0011] Preferably, the end of the pressing part is U-shaped, and a pressing part rack is provided on one side. The pressing part rack and the ejector plate rack face each other and are respectively installed on both sides of the housing.

[0012] Furthermore, a pressing part inclined support foot is provided on one side of the pressing part below the pressing part mounting port, and a pressing part limiting block extends inward from the opening of the pressing part mounting port, the pressing part limiting block cooperating with the pressing part inclined support foot.

[0013] Preferably, the blade ejector plate encloses a blade placement space within the housing, in which blades are placed and stacked, with the uppermost blade closest to the blade outlet.

[0014] Furthermore, a blade lifting spring is provided between the lowest layer of the blade and the housing.

[0015] Preferably, the contact position between the blade ejector plate and the uppermost blade is located upwards from the blade outlet, and a protrusion extends from the end of the blade in the stacking direction, which is a blade pushing part that cooperates with the blade.

[0016] Furthermore, at the end face of the housing where the blade outlet is located, there is also an ejector plate outlet, which cooperates with the blade ejector plate.

[0017] This invention has the following benefits:

[0018] Compared to existing technologies where the user needs to manually reset the blade after it is ejected before the next blade can be ejected, and where there is no safety structure at the blade exit position, the blade box of this utility model is equipped with a pressing part reset spring below the pressing part. After each blade ejection process, the pressing part will automatically reset, waiting for the next blade to be retrieved. In addition, a blade limiting block is provided at the opening of the blade box to prevent the blade from coming out of the blade box when it is not being retrieved, thus improving safety. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the device of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention from one perspective.

[0021] Figure 3 This is a three-dimensional view of the assembly of the internal components of this utility model.

[0022] Figure 4 This is a cross-sectional view from another perspective of the present invention.

[0023] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0024] Figure 6 for Figure 4 A magnified view of a section at point B.

[0025] Figure 7 This utility model Figure 4 A cross-sectional view from another location.

[0026] In the figure, 1-housing, 2-pressing part, 3-blade outlet, 4-upper end face of blade box, 5-pressing part reset spring, 6-pressing part spring mounting post, 7-housing spring fixing post, 8-gear fixing shaft, 9-step gear, 10-blade ejection plate, 11-ejection plate rack, 12-blade, 13-blade lifting spring, 14-pressing part rack, 15-blade pushing part, 16-pressing part mounting port, 17-pressing part inclined support foot, 18-pressing part limiting block, 19-ejection plate outlet, 20-blade limiting block. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0028] Example 1:

[0029] like Figures 1 to 7As shown, a blade box includes a housing 1 and a pressing part 2. The housing 1 is provided with a pressing part mounting port 16. The pressing part 2 is inserted into the pressing part mounting port 16 and movably connected to the housing 1. The housing 1 is provided with a blade ejector plate 10. The pressing part 2 is drivenly connected to the blade ejector plate 10.

[0030] The housing 1, serving as the base and outer structure of the blade box, is made of engineering plastic or metal materials with sufficient structural strength to ensure effective protection of internal components and overall structural stability. The upper surface of the housing 1 has a pressing part mounting port 16, which is a through hole for engaging with the pressing part 2. This port guides the movement of the pressing part 2 and restricts its degree of freedom, allowing it to reciprocate only in a predetermined direction.

[0031] A blade outlet 3 is provided on the end face of the housing 1, which is parallel to and above the pressing part mounting port 16. The blade outlet 3 is a narrow and elongated opening. The direction in which the blade 12 is pushed out of the blade outlet 3 is parallel to the movement direction of the pressing part 2, and the blade 12 will be pushed out in this direction. The height of the blade outlet 3 is slightly greater than the thickness of a single blade 12, but less than the sum of the thicknesses of two stacked blades 12, allowing only a single blade to pass through and preventing multiple blades from being pushed out at once.

[0032] Inside the housing 1, a blade ejection plate 10 is provided. The blade ejection plate 10 and the inner wall of the housing 1 together form a blade placement space for accommodating and stacking a certain number of blades 12. The blades 12 are arranged in layers within the blade placement space, with the edge of the uppermost blade 12 located near the blade outlet 3 to facilitate the operation of the subsequent ejection mechanism.

[0033] To ensure the compactness of the blade stacking structure and the sequential separation of the blades, a blade lifting spring 13 is installed between the bottom layer of blades 12 and the inner bottom surface of the housing 1. The blade lifting spring 13 can be any type of spring, such as a common compression spring or a leaf spring. There are no restrictions on the choice of spring; it only needs to be able to be installed within the blade placement space and continuously provide elastic thrust along the blade stacking direction. The purpose is to ensure that the blade stack always presses upwards, keeping the top blade stably in the ejection position and facilitating the sequential separation of subsequent blades.

[0034] A gear fixing shaft 8 is installed on the inner wall of the housing 1. The gear fixing shaft 8 can be fixedly installed on the housing 1 or hinged to the housing 1. The difference is that if the gear fixing shaft 8 is fixedly connected to the housing 1, the stepped gear 9 needs to be hinged to the gear fixing shaft 8. If the gear fixing shaft 8 is hinged to the housing 1, the stepped gear 9 can be fixedly connected to the gear fixing shaft 8 or hinged.

[0035] The gear fixing shaft 8 is typically a cylindrical metal shaft with its axis perpendicular to the side wall of the housing, used to support and mount the stepped gear 9. It is worth noting that the gear fixing shaft 8 and the blade ejector plate 10 are spaced apart, and their movements do not interfere with each other. Inside the housing 1, a housing spring fixing post 7 is also provided. This post is a protruding structure used to fix one end of the pressing part return spring 5. The position of the housing spring fixing post 7 corresponds to the pressing part spring mounting post 6 to ensure the effective installation and function of the pressing part return spring 5.

[0036] On the end face of the housing 1, which has a blade outlet 3, an ejector plate outlet 19 is also provided. The ejector plate outlet 19 is an opening that contacts the blade outlet 3, and its shape and size match the front end portion of the blade ejector plate 10. The ejector plate outlet 19 allows the front end of the blade ejector plate 10 to extend out of the end face of the housing 1 during movement, thereby guiding and supporting the movement of the blade 12. The ejector plate outlet 19 also serves to guide and constrain the movement trajectory of the blade ejector plate 10.

[0037] The blade ejector plate 10 is provided with a blade limiting block 20 at the blade outlet 3. The blade limiting block 20 reduces the opening height of the blade outlet 3, so that the height of the blade outlet 3 is less than the thickness of the blade when the blade box is not in use, thus preventing the blade from falling out of the blade box when not being taken out due to disturbance factors.

[0038] At the end of the blade ejector plate 10, there is a protruding blade pusher 15. The blade pusher 15 is located behind the blade and can make contact with the end of the uppermost blade 12. While the pressing part 2 pushes the blade ejector plate 10 to move, the blade pusher 15 pushes the uppermost blade 12 to move towards the blade outlet 3.

[0039] The pressing part 2, which is the component for applying operating force by the user, is made of the same or similar material as the housing 1. The pressing part 2 is movably connected to the housing 1 by inserting into the pressing part mounting port 16, allowing the pressing part 2 to perform linear reciprocating motion in a predetermined direction within the pressing part mounting port 16. A pressing part spring mounting post 6 is provided on the inner side of the pressing part 2, which is positioned opposite to the housing spring fixing post 7 and is used to fix the other end of the pressing part return spring 5. The pressing part return spring 5 is a compression spring, installed between the pressing part spring mounting post 6 and the housing spring fixing post 7. It stores elastic potential energy after being compressed and releases the energy after the pressure is released, driving the pressing part 2 to return to its original position.

[0040] The end of the pressing part 2 has a U-shaped structure. On one side of the U-shaped structure, a pressing part rack 14 is machined. The U-shaped structure is used to limit the direction of movement of the pressing part 2 when it meshes with the stepped gear 9. The pressing part rack 14 has a certain length and number of teeth and meshes with the pinion of the stepped gear 9 to realize gear and rack meshing transmission.

[0041] Meanwhile, a push-out plate rack 11 is also provided on the side of the blade push-out plate 10, located on one side of the pressing part 2. The tooth profile of the push-out plate rack 11 meshes with the large gear of the stepped gear 9, also for realizing gear and rack meshing transmission. The tooth surfaces of the pressing part rack 14 and the push-out plate rack 11 face each other and are located at both ends of the stepped gear 9, so as to mesh with the two stages of the stepped gear 9 respectively. At the same time, the stepped gear 9 enables the user to apply a force to the pressing part 9 in the opposite direction to the movement direction of the blade push-out plate 10. Thus, during the blade push-out process, the user can push out the blade without direct contact with the blade.

[0042] A pressing part inclined support leg 17 is provided on the side of the pressing part 2, below the pressing part mounting port 16. The pressing part inclined support leg 17 is an inclined, protruding, strip-shaped bifurcated structure extending from the side of the pressing part 2. A pressing part limiting block 18 extends into the housing 1 from the opening edge of the pressing part mounting port 16. The pressing part limiting block 18 is a protruding structure fixed to the housing 1. The pressing part limiting block 18 and the pressing part inclined support leg 17 cooperate with each other, and during the movement of the pressing part 2, the pressing part limiting block 18 can limit the maximum movement distance of the pressing part inclined support leg 17. This prevents the pressing part 2 from detaching from the pressing part mounting port 16 and the housing 1 during the reset process.

[0043] The stepped gear 9 is a composite gear with two gear stages, typically made of engineering plastics or metal. It is hinged to the gear fixing shaft 8 via a central hole, allowing it to rotate freely around the shaft. The larger gear of the stepped gear 9 meshes with the ejector plate rack 11, and the smaller gear meshes with the pressing part rack 14, forming the core component of the gear and rack transmission mechanism. The difference in the number of teeth between the larger and smaller gears of the stepped gear 9—the larger gear having more teeth than the smaller gear—allows the smaller stroke of the pressing part 2 to be converted into a larger stroke of the blade ejector plate 10. Although the customer needs to apply more force to press the pressing part 2, the length of the blade 12 ejected is also increased, while simultaneously reducing the risk of children with insufficient strength mistaking the blade box for a toy.

[0044] Example 2:

[0045] The structure of this embodiment is similar to that of Embodiment 1, and the dynamic movement process of the blade box of this utility model is specifically described.

[0046] like Figures 1 to 7As shown, a blade box includes a housing 1 and a pressing part 2. The housing 1 is provided with a pressing part mounting port 16. The pressing part 2 is inserted into the pressing part mounting port 16 and movably connected to the housing 1. The housing 1 is provided with a blade ejector plate 10. The pressing part 2 is drivenly connected to the blade ejector plate 10.

[0047] The housing 1, serving as the base and outer structure of the blade box, is made of engineering plastic or metal materials with sufficient structural strength to ensure effective protection of internal components and overall structural stability. The upper surface of the housing 1 has a pressing part mounting port 16, which is a through hole for engaging with the pressing part 2. This port guides the movement of the pressing part 2 and restricts its degree of freedom, allowing it to reciprocate only in a predetermined direction.

[0048] A blade outlet 3 is provided on the end face of the housing 1, which is parallel to and above the pressing part mounting port 16. The blade outlet 3 is a narrow and elongated opening. The direction in which the blade 12 is pushed out of the blade outlet 3 is parallel to the movement direction of the pressing part 2, and the blade 12 will be pushed out in this direction. The height of the blade outlet 3 is slightly greater than the thickness of a single blade 12, but less than the sum of the thicknesses of two stacked blades 12, allowing only a single blade to pass through and preventing multiple blades from being pushed out at once.

[0049] Inside the housing 1, a blade ejection plate 10 is provided. The blade ejection plate 10 and the inner wall of the housing 1 together form a blade placement space for accommodating and stacking a certain number of blades 12. The blades 12 are arranged in layers within the blade placement space, with the edge of the uppermost blade 12 located near the blade outlet 3 to facilitate the operation of the subsequent ejection mechanism.

[0050] To ensure the compactness of the blade stacking structure and the sequential separation of the blades, a blade lifting spring 13 is installed between the bottom layer of blades 12 and the inner bottom surface of the housing 1. The blade lifting spring 13 can be any type of spring, such as a common compression spring or a leaf spring. There are no restrictions on the choice of spring; it only needs to be able to be installed within the blade placement space and continuously provide elastic thrust along the blade stacking direction. The purpose is to ensure that the blade stack always presses upwards, keeping the top blade stably in the ejection position and facilitating the sequential separation of subsequent blades.

[0051] A gear fixing shaft 8 is installed on the inner wall of the housing 1. The gear fixing shaft 8 can be fixedly installed on the housing 1 or hinged to the housing 1. The difference is that if the gear fixing shaft 8 is fixedly connected to the housing 1, the stepped gear 9 needs to be hinged to the gear fixing shaft 8. If the gear fixing shaft 8 is hinged to the housing 1, the stepped gear 9 can be fixedly connected to the gear fixing shaft 8 or hinged.

[0052] The gear fixing shaft 8 is typically a cylindrical metal shaft with its axis perpendicular to the side wall of the housing, used to support and mount the stepped gear 9. It is worth noting that the gear fixing shaft 8 and the blade ejector plate 10 are spaced apart, and their movements do not interfere with each other. Inside the housing 1, a housing spring fixing post 7 is also provided. This post is a protruding structure used to fix one end of the pressing part return spring 5. The position of the housing spring fixing post 7 corresponds to the pressing part spring mounting post 6 to ensure the effective installation and function of the pressing part return spring 5.

[0053] On the end face of the housing 1, which has a blade outlet 3, an ejector plate outlet 19 is also provided. The ejector plate outlet 19 is an opening that contacts the blade outlet 3, and its shape and size match the front end portion of the blade ejector plate 10. The ejector plate outlet 19 allows the front end of the blade ejector plate 10 to extend out of the end face of the housing 1 during movement, thereby guiding and supporting the movement of the blade 12. The ejector plate outlet 19 also serves to guide and constrain the movement trajectory of the blade ejector plate 10.

[0054] The blade ejector plate 10 is provided with a blade limiting block 20 at the blade outlet 3. The blade limiting block 20 reduces the opening height of the blade outlet 3, so that the height of the blade outlet 3 is less than the thickness of the blade when the blade box is not in use, thus preventing the blade from falling out of the blade box when not being taken out due to disturbance factors.

[0055] At the end of the blade ejector plate 10, there is a protruding blade pusher 15. The blade pusher 15 is located behind the blade and can make contact with the end of the uppermost blade 12. While the pressing part 2 pushes the blade ejector plate 10 to move, the blade pusher 15 pushes the uppermost blade 12 to move towards the blade outlet 3.

[0056] The pressing part 2, which is the component for applying operating force by the user, is made of the same or similar material as the housing 1. The pressing part 2 is movably connected to the housing 1 by inserting into the pressing part mounting port 16, allowing the pressing part 2 to perform linear reciprocating motion in a predetermined direction within the pressing part mounting port 16. A pressing part spring mounting post 6 is provided on the inner side of the pressing part 2, which is positioned opposite to the housing spring fixing post 7 and is used to fix the other end of the pressing part return spring 5. The pressing part return spring 5 is a compression spring, installed between the pressing part spring mounting post 6 and the housing spring fixing post 7. It stores elastic potential energy after being compressed and releases the energy after the pressure is released, driving the pressing part 2 to return to its original position.

[0057] The end of the pressing part 2 has a U-shaped structure. On one side of the U-shaped structure, a pressing part rack 14 is machined. The U-shaped structure is used to limit the direction of movement of the pressing part 2 when it meshes with the stepped gear 9. The pressing part rack 14 has a certain length and number of teeth and meshes with the pinion of the stepped gear 9 to realize gear and rack meshing transmission.

[0058] Meanwhile, a push-out plate rack 11 is also provided on the side of the blade push-out plate 10, located on one side of the pressing part 2. The tooth profile of the push-out plate rack 11 meshes with the large gear of the stepped gear 9, also for realizing gear and rack meshing transmission. The tooth surfaces of the pressing part rack 14 and the push-out plate rack 11 face each other and are located at both ends of the stepped gear 9, so as to mesh with the two stages of the stepped gear 9 respectively. At the same time, the stepped gear 9 enables the user to apply a force to the pressing part 9 in the opposite direction to the movement direction of the blade push-out plate 10. Thus, during the blade push-out process, the user can push out the blade without direct contact with the blade.

[0059] A pressing part inclined support leg 17 is provided on the side of the pressing part 2, below the pressing part mounting port 16. The pressing part inclined support leg 17 is an inclined, protruding, strip-shaped bifurcated structure extending from the side of the pressing part 2. A pressing part limiting block 18 extends into the housing 1 from the opening edge of the pressing part mounting port 16. The pressing part limiting block 18 is a protruding structure fixed to the housing 1. The pressing part limiting block 18 and the pressing part inclined support leg 17 cooperate with each other, and during the movement of the pressing part 2, the pressing part limiting block 18 can limit the maximum movement distance of the pressing part inclined support leg 17. This prevents the pressing part 2 from detaching from the pressing part mounting port 16 and the housing 1 during the reset process.

[0060] The stepped gear 9 is a composite gear with two gear stages, typically made of engineering plastics or metal. It is hinged to the gear fixing shaft 8 via a central hole, allowing it to rotate freely around the shaft. The larger gear of the stepped gear 9 meshes with the ejector plate rack 11, and the smaller gear meshes with the pressing part rack 14, forming the core component of the gear and rack transmission mechanism. The difference in the number of teeth between the larger and smaller gears of the stepped gear 9—the larger gear having more teeth than the smaller gear—allows the smaller stroke of the pressing part 2 to be converted into a larger stroke of the blade ejector plate 10. Although the customer needs to apply more force to press the pressing part 2, the length of the blade 12 ejected is also increased, while simultaneously reducing the risk of children with insufficient strength mistaking the blade box for a toy.

[0061] The blade ejector plate 10 moves linearly along the long side of the housing 1 towards the blade outlet 3 inside the housing 1, its trajectory constrained by the inner wall of the housing 1 and the ejector plate outlet 19. A blade pushing part 15 is provided at the front end of the blade ejector plate 10, i.e., at the position where it contacts the uppermost blade 12. The blade pushing part 15 is a protrusion on the blade ejector plate 10 located behind the blade 12. The blade pushing part 15 can push the uppermost blade 12, ejecting it along the blade outlet 3. The ejector plate rack 11 is machined on the side of the blade ejector plate 10, and its tooth profile parameters match the large gear of the stepped gear 9. It receives the rotational motion transmitted by the stepped gear 9 and converts it into the linear motion of the blade ejector plate 10.

[0062] The blade 12 is a thin, blade-shaped cutting tool, typically made of stainless steel or carbon steel. The blades 12 are horizontally stacked within the blade placement space, with the cutting edge facing the blade outlet 3. The blade lifting spring 13 continuously pushes the blade stack upwards, ensuring that the topmost blade 12 remains in contact with the blade ejector plate 10 and is ready to be ejected.

[0063] When the user presses down on the pressing part 2, the pressing part 2 moves into the housing 1, simultaneously compressing the pressing part return spring 5. The movement of the pressing part 2 drives the pressing part rack 14 to move, which meshes with the pinion of the stepped gear 9, driving the stepped gear 9 to rotate around the gear fixed shaft 8. The rotation of the stepped gear 9 is transmitted to the ejector plate rack 11 through its large gear. The blade pushing part 15 of the blade ejector plate 10 pushes the uppermost blade 12 towards the blade outlet 3 until the blade 12 is ejected from the blade outlet 3 into the blade box. When the user releases the pressing force, the pressing part return spring 5 releases its stored elastic potential energy, pushing the pressing part 2 to reset in the opposite direction. Through the stepped gear 9 and rack mechanism, the blade ejector plate 10 also resets synchronously, returning to its initial position. The next blade 12 is then pushed to engage with the blade ejector plate 10, ready for the next blade ejection operation.

Claims

1. A blade holder, characterized in that, It includes a housing (1) and a pressing part (2). The housing (1) is provided with a pressing part mounting port (16). The pressing part (2) is inserted into the pressing part mounting port (16) and movably connected to the housing (1). The housing (1) is provided with a blade ejector plate (10). The pressing part (2) is connected to the blade ejector plate (10) in a transmission manner. The housing (1) is provided with a blade outlet (3), the direction of the blade outlet (3) is parallel to the movement direction of the pressing part (2), the end of the pressing part is a pressing part rack, the blade ejection plate is located on one side of the pressing part and is provided with an ejection plate rack, the inner side of the pressing part is provided with a pressing part spring mounting post, the inner side of the housing is provided with a housing spring fixing post, and a pressing part reset spring is installed between the pressing part spring mounting post and the housing spring fixing post.

2. The blade holder according to claim 1, characterized in that, A gear fixing shaft (8) is mounted on the housing (1), and the gear fixing shaft (8) is hinged to the stepped gear (9).

3. The blade holder according to claim 2, characterized in that, The gear fixing shaft (8) does not contact the blade ejector plate (10), the ejector plate rack (11) meshes with the large gear of the stepped gear (9), and the pressing part rack (14) meshes with the small gear of the stepped gear (9).

4. The blade holder according to claim 1, 2, or 3, characterized in that, The pressing part spring mounting head (6) and the housing spring fixing head (7) face each other.

5. The blade holder according to claim 2, characterized in that, The end of the pressing part (2) is U-shaped, and the pressing part rack (14) is provided on one side. The pressing part rack (14) and the ejector plate rack (11) face each other and are respectively installed on both sides of the housing (1).

6. The blade holder according to claim 1, 2, 3, or 5, characterized in that, One side of the pressing part (2) is provided with a pressing part inclined support foot (17) below the pressing part mounting port (16). A pressing part limiting block (18) extends inward from the opening of the pressing part mounting port (16) and the pressing part limiting block (18) cooperates with the pressing part inclined support foot (17).

7. The blade holder according to claim 1, 2, 3, or 5, characterized in that, The blade ejection plate (10) encloses a blade placement space in the housing (1), in which blades (12) are placed, and the blades (12) are stacked, with the uppermost blade (12) close to the blade outlet (3).

8. The blade holder according to claim 7, characterized in that, A blade lifting spring (13) is provided between the bottom layer of the blade (12) and the housing (1).

9. The blade holder according to claim 7, characterized in that, The contact position between the blade ejector plate (10) and the uppermost blade (12) is located with the blade outlet (3) facing upward. There is a protruding end extending from the end of the blade (12) in the stacking direction of the blades (12), which is the blade pushing part (15). The blade pushing part (15) cooperates with the blade (12).

10. The blade holder according to claim 1, 2, 3, 5, 8, or 9, characterized in that, The end face of the housing (1) with the blade outlet (3) is also provided with an ejector plate outlet (19), which is in cooperation with the blade ejector plate (10).

Images