Portable bandage slitting device

Abstract

The portable bandage slitting device comprises an upper cover plate, a lower cover plate and a mounting base, a first drawing opening and a second drawing opening are formed in the front end face and the rear end face of the lower cover plate, and five tool apron mounting grooves are formed in the two sides of the top end of the mounting base side by side correspondingly; four of the five tool apron mounting grooves located on one side of the top end of the mounting base divide the distance between the two side walls of the first drawing opening into five equal parts, and the other tool apron mounting groove divides the distance between the two side walls of the first drawing opening into two equal parts. Three of five tool apron mounting grooves located in the other side of the mounting base quarters the distance between the two side walls of the second drawing opening, the other two tool apron mounting grooves trisect the distance between the two side walls of the second drawing opening, and cutting pieces are movably mounted in the tool apron mounting grooves; one side of the top end of the upper cover plate is provided with a five-equal-part pressing plate and a two-equal-part pressing plate, and the other side of the top end of the upper cover plate is provided with a quartering pressing plate and a three-equal-part pressing plate; the device is convenient to carry and safe to use.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a portable bandage slitting device. Background Art

[0002] Athletes usually fix and protect vulnerable parts during high-intensity sports, or protect the injured parts after being injured. The protection or prevention usually involves wrapping a bandage around the part that needs protection or the injured part.

[0003] When athletes tie bandages, they need to split the bandages into several widths, because different parts of the human body have different shapes, sizes and required support and protection levels. For example, fingers, wrists and other parts are relatively thin, and narrower bandages (such as about 2 cm) can fit better and perform delicate bandaging and fixation without affecting the flexibility of the joints. However, joints such as knees and ankles are large in area and move frequently, so wider bandages (such as 5-10 cm) are needed to provide wider coverage and stronger support to stabilize the joints and reduce the risk of injury. It is very inconvenient for athletes to carry scissors and other knives with them, and they are prone to hurting themselves. Therefore, there is an urgent need for a bandage cutting device that can be carried around and used safely. To this end, we propose a portable bandage cutting device. Summary of the invention

[0004] The problem to be solved by the present invention is how to solve the problem of carrying a bandage and safely cutting it according to one's own needs.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a portable bandage slitting device, comprising an upper cover plate, a lower cover plate, and a mounting seat movably arranged between the upper cover plate and the lower cover plate, the front end face and the rear end face of the lower cover plate are respectively provided with a first draw-out opening and a second draw-out opening that are connected to each other, the bottom end of the mounting seat is flush with the top ends of the first draw-out opening and the second draw-out opening, and five knife holder mounting grooves are respectively arranged side by side on both sides of the top end of the mounting seat, and one side groove wall of four of the five knife holder mounting grooves on the side of the top end of the mounting seat close to the first draw-out opening divides the distance between the two side walls of the first draw-out opening into five equal parts, and the other side groove wall of the other side groove divides the distance between the two side walls of the first draw-out opening into five equal parts. A groove wall 2 on one side of a knife seat mounting groove divides the distance between the two side walls of the first pull-out opening into two equal parts, a groove wall 3 on one side of three of the five knife seat mounting grooves on the top end of the mounting seat close to the second pull-out opening divides the distance between the two side walls of the second pull-out opening into four equal parts, and a groove wall 4 on one side of the other two knife seat mounting grooves divides the distance between the two side walls of the second pull-out opening into three equal parts, a cutting piece is movably installed in the knife seat mounting groove, a five-divided pressing plate and a two-divided pressing plate are provided on one side of the top end of the upper cover plate, a four-divided pressing plate and a three-divided pressing plate are provided on the other side of the top end of the upper cover plate, and the upper cover plate and the lower cover plate are connected by screws.

[0006] As a preferred solution of the portable bandage slitting device described in the present invention, a mounting block is provided on the bottom wall of one side of the knife seat mounting groove, a slope is formed on the top of the mounting block, a square through hole is provided on the bottom wall of the other side of the knife seat mounting groove, and an outer wall of the knife seat mounting groove opening above the square through hole forms an inclined surface.

[0007] As a preferred embodiment of the portable bandage slitting device described in the present invention, the cutting piece includes a knife seat and a connecting plate made of plastic material, a square notch is formed at the bottom end of the connecting plate, and the square notch is movably connected to the top of the mounting block, the height of the connecting plate is equal to the height from the bottom wall of the knife seat mounting groove to the notch, the left and right side walls of the knife seat and the connecting plate are fitted with the inner wall gap of the knife seat mounting groove, a clamping block is provided on one side of the knife seat, and a blade is fixedly clamped on the side wall of the clamping block, a limiting block is provided on the front side of the top end of the knife seat, the sum of the length of the knife seat and the connecting plate is less than the length of the knife seat mounting groove, and the sum of the limit block, the knife seat and the connecting plate is greater than the length of the knife seat mounting groove.

[0008] As a preferred solution of the portable bandage slitting device described in the present invention, four first pressing blocks are arranged at the bottom end of the five-divided pressing plate, and the top of the knife seat in the four knife seat mounting grooves that divide the distance between the two side walls of the first pull-out opening into five equal parts corresponds to the first pressing block, and when the knife seat is in a horizontal state, the top of the knife seat is gap-matched with the first pressing block.

[0009] As a preferred embodiment of the portable bandage slitting device described in the present invention, a second pressing block is provided at the bottom end of the two-divided pressing plate, and the top of the knife seat in the knife seat mounting groove that divides the distance between the two side walls of the first pull-out opening into two equal parts corresponds to the second pressing block. When the knife seat is in a horizontal state, the top of the knife seat and the second pressing block are gap-matched.

[0010] As a preferred embodiment of the portable bandage slitting device described in the present invention, three third pressing blocks are arranged at the bottom end of the four-divided pressing plate, and the top of the knife seat in the knife seat mounting groove that divides the distance between the two side walls of the second pull-out opening into four equal parts corresponds to the third pressing block. When the knife seat is in a horizontal state, the top of the knife seat is gap-matched with the third pressing block.

[0011] As a preferred solution of the portable bandage slitting device described in the present invention, two fourth pressing blocks are arranged at the bottom end of the three-divided pressing plate, and the top of the knife seat in the knife seat mounting groove that divides the distance between the two side walls of the second pull-out opening into three equal parts corresponds to the fourth pressing block, and when the knife seat is in a horizontal state, the top of the knife seat and the fourth pressing block are gap-matched.

[0012] As a preferred solution of the portable bandage slitting device described in the present invention, two extrusion plates are symmetrically arranged in the middle of the bottom end of the upper cover plate, and the two extrusion plates are respectively arranged above the ends of the knife seat mounting groove on both sides of the top end of the mounting seat.

[0013] As a preferred solution of the portable bandage slitting device described in the present invention, a knife groove is provided at a position of the lower cover plate corresponding to the blade in the knife seat installation groove.

[0014] The beneficial effects of the present invention are as follows: the present invention is easy to carry and safe to use, and the bandage can be cut according to actual needs. If the bandage is to be divided into five equal parts or two equal parts, the bandage can be passed through the first pull-out opening, and then the five-part pressing plate or the two-part pressing plate can be pressed to obtain the bandage cut into five equal parts or two equal parts. If the bandage is to be divided into four equal parts or three equal parts, the bandage can be passed through the second pull-out opening, and then the four-part pressing plate and the three-part pressing plate can be pressed to obtain the bandage cut into four equal parts or three equal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is an overall intuitive diagram of the present invention.

[0016] Figure 2 This is a direct view of the present invention after removing the upper cover plate.

[0017] Figure 3 It is a structural schematic diagram of the mounting seat in the present invention.

[0018] Figure 4 It is a structural schematic diagram of the lower cover plate in the present invention.

[0019] Figure 5 This is a schematic diagram of the lower cover plate structure from another viewing angle in the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the cutting piece in the present invention.

[0021] Figure 7 It is a bottom view structural schematic diagram of the upper cover plate in the present invention. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings.

[0023] Reference Figures 1 to 7 The present embodiment is a portable bandage slitting device, comprising an upper cover plate 100, a lower cover plate 200, and a mounting seat 300 movably arranged between the upper cover plate 100 and the lower cover plate 200, the front end face and the rear end face of the lower cover plate 200 are respectively provided with a first draw-out opening 201 and a second draw-out opening 202 which are connected to each other, the bottom end of the mounting seat 300 is flush with the top ends of the first draw-out opening 201 and the second draw-out opening 202, and five knife holder mounting grooves 301 are respectively arranged side by side on both sides of the top end of the mounting seat 300, and one side groove wall a of four knife holder mounting grooves 301 on the top end of the mounting seat 300 close to the first draw-out opening 201 divides the distance between the two side walls of the first draw-out opening 201 into five equal parts, and the other knife holder mounting groove 301 A groove wall 2 b on one side divides the distance between the two side walls of the first pull-out opening 201 into two equal parts. Among the five tool holder mounting grooves 301 on the top side of the mounting seat 300 close to the second pull-out opening 202, a groove wall 3 c on one side of three tool holder mounting grooves 301 divides the distance between the two side walls of the second pull-out opening 202 into four equal parts. A groove wall 4 d on one side of the other two tool holder mounting grooves 301 divides the distance between the two side walls of the second pull-out opening 202 into three equal parts. A cutting piece 302 is movably installed in the tool holder mounting groove 301. A five-divided pressing plate 101 and a two-divided pressing plate 102 are provided on one side of the top of the upper cover plate 100. A four-divided pressing plate 103 and a three-divided pressing plate 104 are provided on the other side of the top of the upper cover plate 100. The upper cover plate 100 and the lower cover plate 200 are connected by screws.

[0024] Cutting is performed according to actual needs. If the bandage is to be divided into five equal parts or two equal parts, one end of the bandage is passed through the first pull-out opening 201 and the second pull-out opening 202 in sequence, and the five-division pressing plate 101 or the two-division pressing plate 102 can be pressed. The five-division pressing plate 101 or the two-division pressing plate 102 can press the movable cutting member 302 in the corresponding knife seat mounting groove 301, so that the cutting member 302 cuts the bottom end of the mounting seat 300 and the top end of the lower cover plate 200. If the bandage is to be divided into four or three equal parts, one end of the bandage can be passed through the second pull-out opening 202 and the first pull-out opening 201 in sequence, and the four-division pressing plate 103 and the three-division pressing plate 104 can be pressed. The four-division pressing plate 103 and the three-division pressing plate 104 can press the movable cutting piece 302 in the corresponding knife seat mounting groove 301, so that the cutting piece 302 cuts the bandage located between the bottom end of the mounting seat 300 and the top end of the lower cover plate 200.

[0025] In this embodiment, a mounting block 301a is provided on the bottom wall of one side of the tool holder mounting groove 301, a slope 301b is formed on the top of the mounting block 301a, a square through hole 301c is provided on the bottom wall of the other side of the tool holder mounting groove 301, and a slope 301d is formed on the outer wall of the groove of the tool holder mounting groove 301 located above the square through hole 301c.

[0026] In this embodiment, the cutting piece 302 includes a knife seat 302a and a connecting plate 302b made of plastic material, a square notch 302c is formed at the bottom end of the connecting plate 302b, and the square notch 302c is movably connected to the top of the mounting block 301a, the height of the connecting plate 302b is equal to the height from the bottom wall of the knife seat mounting groove 301 to the notch, the left and right side walls of the knife seat 302a and the connecting plate 302b are in a gap with the inner wall of the knife seat mounting groove 301, a clamping block 302d is provided on one side of the knife seat 302a, and a blade 302f is fixedly clamped on the side wall of the clamping block 302d, a limiting block 302e is provided on the front side of the top of the knife seat 302a, the sum of the length of the knife seat 302a and the connecting plate 302b is less than the length of the knife seat mounting groove 301, and the sum of the limiting block 302e, the knife seat 302a and the connecting plate 302b is greater than the length of the knife seat mounting groove 301.

[0027] Since the square notch 302c is movably connected to the top of the mounting block 301a, and the top of the mounting block 301a forms a slope 301b, when the square notch 302c fits the slope 301b at the top of the mounting block 301a, the cutting piece 302 composed of the knife seat 302a and the connecting plate 302b is arranged in the knife seat mounting groove 301 at an inclined angle as a whole. At this time, one end of the connecting plate 302b is upturned. The cutting piece 302 is made of plastic material for the knife seat 302a and the connecting plate 302b, so the knife seat 302a and the connecting plate 302b and the connection between the two are elastic. After the knife seat 302a is pressed down a certain distance, the limit block 302e abuts against the top of the mounting seat 300 to prevent the knife seat 302a from continuing to descend, thereby causing the connection between the knife seat 302a and the connecting plate 302b to break.

[0028] In this embodiment, four first pressing blocks 101a are provided at the bottom end of the five-divided pressing plate 101, and the top of the knife seat 302a in the four knife seat mounting grooves 301 that divide the distance between the two side walls of the first pull-out opening 201 into five equal parts corresponds to the first pressing block 101a. When the knife seat 302a is in a horizontal state, the top of the knife seat 302a is gap-matched with the first pressing block 101a.

[0029] Since one side groove wall a of the four knife seat mounting grooves 301 divides the distance between the two side walls of the first pull-out opening 201 into five equal parts, when the five-divided pressing plate 101 is pressed downward, the four first pressing blocks 101a at the bottom end of the five-divided pressing plate 101 can simultaneously press downward the top of the knife seats 302a in the four knife seat mounting grooves 301, so that the knife seats 302a in the four knife seat mounting grooves 301 respectively drive the blades 302f downward through the square through holes 301c to cut the bandage, and since the side wall of the knife seat 302a fits in the gap with the inner wall of the knife seat mounting groove 301, the blades 302f in the four knife seat mounting grooves 301 can divide the bandage into five equal parts.

[0030] In this embodiment, a second pressing block 102a is provided at the bottom end of the two-part pressing plate 102, and the top of the knife seat 302a in the knife seat mounting groove 301 that divides the distance between the two side walls of the first pull-out opening 201 into two equal parts corresponds to the second pressing block 102a. When the knife seat 302a is in a horizontal state, the top of the knife seat 302a is gap-matched with the second pressing block 102a.

[0031] Since the groove wall 2b on one side of a knife seat mounting groove 301 divides the distance between the two side walls of the first pull-out opening 201 into two equal parts, when the pressing plate 102 is pressed downward, the second pressing block 102a at the bottom end of the pressing plate 102 can press the top of the corresponding knife seat 302a downward, so that the knife seat 302a drives the blade 302f downward through the square through hole 301c in the knife seat mounting groove 301 to cut the bandage. Since the side wall of the knife seat 302a fits the gap between the inner wall of the knife seat mounting groove 301, the blade 302f in the knife seat mounting groove 301 can divide the bandage into two equal parts.

[0032] In this embodiment, three third pressing blocks 103a are provided at the bottom end of the four-divided pressing plate 103, and the top of the knife seat 302a in the knife seat mounting groove 301 that divides the distance between the two side walls of the second pull-out opening 202 into four equal parts corresponds to the third pressing block 103a. When the knife seat 302a is in a horizontal state, the top of the knife seat 302a is gap-matched with the third pressing block 103a.

[0033] Since the three side groove walls c of the three knife holder mounting grooves 301 divide the distance between the two side walls of the second pull-out opening 202 into four equal parts, when the four-divided pressing plate 103 is pressed downward, the three third pressing blocks 103a at the bottom end of the four-divided pressing plate 103 can simultaneously press the top of the corresponding knife holder 302a downward, so that the corresponding three knife holders 302a drive the blades 302f downward through the square through holes 301c in the three knife holder mounting grooves 301 to cut the bandage. Since the side wall of the knife holder 302a fits in the gap with the inner wall of the knife holder mounting groove 301, the blades 302f in the three knife holder mounting grooves 301 can divide the bandage into four equal parts.

[0034] In this embodiment, two fourth pressing blocks 104a are provided at the bottom end of the three-divided pressing plate 104, and the top of the knife seat 302a in the knife seat mounting groove 301 that divides the distance between the two side walls of the second pull-out opening 202 into three equal parts corresponds to the fourth pressing block 104a. When the knife seat 302a is in a horizontal state, the top of the knife seat 302a is gap-matched with the fourth pressing block 104a.

[0035] Since the groove wall 4d on one side of the two knife seat mounting grooves 301 divides the distance between the two side walls of the second pull-out opening 202 into three equal parts, when the three-dividing pressing plate 104 is pressed downward, the two fourth pressing blocks 104a at the bottom end of the three-dividing pressing plate 104 can simultaneously press downward the top of the knife seat 302a in the corresponding two knife seat mounting grooves 301, so that the corresponding knife seat 302a drives the blade 302f downward through the square through hole 301c in the knife seat mounting groove 301 to cut the bandage. Since the side wall of the knife seat 302a fits the gap between the inner wall of the knife seat mounting groove 301, the blade 302f in the two knife seat mounting grooves 301 can divide the bandage into three equal parts.

[0036] In this embodiment, two extrusion plates 105 are symmetrically arranged in the middle of the bottom end of the upper cover plate 100 . When the upper cover plate 100 and the lower cover plate 200 are connected, the bottom ends of the two extrusion plates 105 abut against the notch of the tool holder installation slot 301 .

[0037] When the upper cover 100 and the lower cover 200 are connected, the bottom ends of the two extrusion plates 105 at the bottom of the upper cover 100 abut against the notches of the tool holder mounting groove 301. At this time, if the end of the connecting plate 302b in the tool holder mounting groove 301 is in an inclined upward state, the extrusion plate 105 will squeeze the end of the connecting plate 302b, causing it to change from an inclined state to a horizontal state, thereby driving the entire inclined cutting piece 302 to become a horizontal state.

[0038] In this embodiment, a knife groove 203 is formed at a position of the lower cover plate 200 corresponding to the knife blade 302 f in the knife seat installation groove 301 .

[0039] When the blade 302f in the blade holder installation groove 301 is driven by the blade holder 302a to pass through the square through hole 301c to cut the bandage and enter the blade groove 203, the blade 302f is placed in a hard collision with the lower cover plate 200, causing the blade 302f to be damaged.

[0040] Principle of use: When the upper cover 100 and the lower cover 200 are connected by screws, the two squeezing plates 105 at the bottom of the upper cover 100 squeeze the end of the connecting plate 302b in the knife seat mounting groove 301 at the same time. The end of the connecting plate 302b is affected by the squeezing plate 105 and changes from an inclined state to a horizontal state, driving the entire inclined cutting piece 302 to a horizontal state. When cutting according to actual needs, if the bandage is to be divided into five or two equal parts, one end of the bandage is passed through the first pull-out opening 201 and the second pull-out opening 202 in turn, and the five-divided pressing plate 101 or the two-divided pressing plate 101 near the first pull-out opening 201 can be pressed. 2. When the five-part pressing plate 101 is pressed downward, the four first pressing blocks 101a at the bottom of the five-part pressing plate 101 can simultaneously press the tops of the four corresponding knife seats 302a downward. Since the knife seat 302a and the connecting plate 302b are made of plastic material, they are elastic. When the connecting plate 302b is fixed in a horizontal state, the knife seat 302a can be pressed to move downward, so that the knife seat 302a drives the blade 302f downward through the square through hole 301c in the knife seat mounting groove 301 to cut the bandage between the top of the lower cover plate 200 and the bottom of the mounting seat 300, and then the whole device is pulled toward the second draw-out opening 2. 02 moves, so that the bandage is cut into five equal parts; when the two-divided pressing plate 102 is pressed downward, the second pressing block 102a at the bottom of the two-divided pressing plate 102 can press the corresponding top of the knife holder 302a downward, so that the knife holder 302a drives the blade 302f downward to pass through the square through hole 301c in the knife holder mounting groove 301 to cut the bandage, and cuts the bandage located between the top of the lower cover plate 200 and the bottom of the mounting seat 300, and then pulls the entire device toward the second draw-out opening 202 to move, so that the bandage is cut into two equal parts; if the bandage is to be divided into four or three equal parts, the bandage is passed through the second draw-out opening 202 and The first draw-out opening 201 can press the quartered pressing plate 103 or the third pressing plate 104 near the second draw-out opening 202. When the quartered pressing plate 103 is pressed downward, the three third pressing blocks 103a at the bottom of the quartered pressing plate 103 can simultaneously press the tops of the corresponding three knife seats 302a downward, so that the corresponding three knife seats 302a respectively drive the blades 302f downward through the square through holes 301c in the knife seat mounting groove 301 to cut the bandage between the top of the lower cover plate 200 and the bottom of the mounting seat 300, and then pull the entire device toward the first draw-out opening 201, so that the bandage is cut into four equal parts;When the three-divided pressing plate 104 is pressed downward, the two fourth pressing blocks 104a at the bottom of the three-divided pressing plate 104 can simultaneously press the tops of the two corresponding knife seats 302a downward, so that the two corresponding knife seats 302a drive the blades 302f downward through the square through holes 301c in the knife seat mounting grooves 301 to cut the bandage between the top of the lower cover plate 200 and the bottom of the mounting seat 300, and then pull the entire device toward the first draw-out opening 201, so that the bandage is cut into three equal parts. ;

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A portable bandage slitting device, characterized in that: The utility model comprises an upper cover plate (100), a lower cover plate (200), and a mounting seat (300) movably arranged between the upper cover plate (100) and the lower cover plate (200); the front end surface and the rear end surface of the lower cover plate (200) are respectively provided with a first draw-out opening (201) and a second draw-out opening (202) which are interlinked with each other; the bottom end of the mounting seat (300) is flush with the top ends of the first draw-out opening (201) and the second draw-out opening (202); five knife seat mounting grooves (301) are respectively arranged side by side on both sides of the top end of the mounting seat (300); among the five knife seat mounting grooves (301) on the side of the top end of the mounting seat (300) close to the first draw-out opening (201), one side groove wall 1 (a) of four knife seat mounting grooves (301) divides the distance between the two side walls of the first draw-out opening (201) into five equal parts; and one side groove wall 2 (b) of another knife seat mounting groove (301) divides the distance between the two side walls of the first draw-out opening (201) into five equal parts. The distance between the two side walls of a draw-out opening (201) is divided into two equal parts; among the five knife seat mounting grooves (301) at the top of the mounting seat (300) close to the second draw-out opening (202), the groove walls (c) of three knife seat mounting grooves (301) on one side divide the distance between the two side walls of the second draw-out opening (202) into four equal parts; the groove walls (d) of the other two knife seat mounting grooves (301) on one side divide the distance between the two side walls of the second draw-out opening (202) into three equal parts; a cutting member (302) is movably installed in the knife seat mounting groove (301); a five-divided pressing plate (101) and a two-divided pressing plate (102) are provided on one side of the top of the upper cover plate (100); a four-divided pressing plate (103) and a three-divided pressing plate (104) are provided on the other side of the top of the upper cover plate (100); and the upper cover plate (100) and the lower cover plate (200) are connected by screws.

2. A portable bandage slitting device as claimed in claim 1, characterized in that: A mounting block (301a) is provided on the bottom wall of one side of the knife seat mounting groove (301), a slope (301b) is formed on the top of the mounting block (301a), a square through hole (301c) is provided on the bottom wall of the other side of the knife seat mounting groove (301), and an outer wall of the notch of the knife seat mounting groove (301) located above the square through hole (301c) forms a slope (301d).

3. A portable bandage slitting device as claimed in claim 2, characterized in that: The cutting member (302) comprises a knife seat (302a) and a connecting plate (302b) made of plastic material, a square notch (302c) is formed at the bottom end of the connecting plate (302b), and the square notch (302c) is movably connected to the top end of the mounting block (301a), the height of the connecting plate (302b) is equal to the height from the bottom wall of the knife seat mounting groove (301) to the notch, and the gap between the left and right side walls of the knife seat (302a) and the connecting plate (302b) and the inner wall of the knife seat mounting groove (301) is The knife seat (302a) is fitted with a clamping block (302d) on one side, a blade (302f) is fixedly clamped on the side wall of the clamping block (302d), a limiting block (302e) is provided on the front side of the top end of the knife seat (302a), the sum of the length of the knife seat (302a) and the connecting plate (302b) is less than the length of the knife seat installation groove (301), and the sum of the length of the limiting block (302e), the knife seat (302a) and the connecting plate (302b) is greater than the length of the knife seat installation groove (301).

4. A portable bandage slitting device as claimed in claim 3, characterized in that: Four first pressing blocks (101a) are arranged at the bottom end of the five-part pressing plate (101), and the top ends of the knife seats (302a) in the four knife seat installation grooves (301) that divide the distance between the two side walls of the first draw-out opening (201) into five parts correspond to the first pressing blocks (101a). When the knife seat (302a) is in a horizontal state, the top ends of the knife seats (302a) are clearance-matched with the first pressing blocks (101a).

5. A portable bandage slitting device as claimed in claim 3, characterized in that: A second pressing block (102a) is provided at the bottom end of the two-part pressing plate (102), and the top end of the knife seat (302a) in the knife seat installation groove (301) that divides the distance between the two side walls of the first draw-out opening (201) into two equal parts corresponds to the second pressing block (102a); when the knife seat (302a) is in a horizontal state, the top end of the knife seat (302a) and the second pressing block (102a) are clearance-matched.

6. A portable bandage slitting device as claimed in claim 3, characterized in that: Three third pressing blocks (103a) are arranged at the bottom end of the four-divided pressing plate (103), and the top of the knife seat (302a) in the knife seat installation groove (301) that divides the distance between the two side walls of the second drawer opening (202) into four equal parts corresponds to the third pressing block (103a). When the knife seat (302a) is in a horizontal state, the top of the knife seat (302a) and the third pressing block (103a) are clearance-matched.

7. A portable bandage slitting device as claimed in claim 3, characterized in that: Two fourth pressing blocks (104a) are arranged at the bottom end of the three-divided pressing plate (104), and the top of the knife seat (302a) in the knife seat installation groove (301) that divides the distance between the two side walls of the second pull-out opening (202) into three equal parts corresponds to the fourth pressing block (104a). When the knife seat (302a) is in a horizontal state, the top of the knife seat (302a) and the fourth pressing block (104a) are clearance-matched.

8. A portable bandage slitting device as claimed in claim 1, characterized in that: Two extrusion plates (105) are symmetrically arranged in the middle of the bottom end of the upper cover plate (100); when the upper cover plate (100) and the lower cover plate (200) are connected, the bottom ends of the two extrusion plates (105) abut against the notch of the knife seat mounting groove (301).

9. A portable bandage slitting device as claimed in claim 3, characterized in that: A knife groove (203) is provided on the lower cover plate (200) at a position corresponding to the knife blade (302f) in the knife seat installation groove (301).

Images