A labor-saving unpacking scissors for convenient disassembly and maintenance

Abstract

The utility model relates to the technical field of unpacking shears, and discloses a labor-saving unpacking shears that is convenient for disassembly and maintenance, comprising a movable handle and a fixed handle, wherein a first connecting frame is fixed to one end of the movable handle, and a second connecting frame is fixed to one end of the fixed handle, a movable connecting rod is hinged between the first connecting frame and the second connecting frame, a fixed blade head is arranged on one side of the second connecting frame, a movable blade head is arranged on one side of the first connecting frame, and a disassembly assembly is arranged on one side of the fixed blade head and the movable blade head, and a locking rod and a sliding plate are driven to move to one side by pulling a pulling block with pliers. At this time, the sliding plate compresses the spring, and at the same time, the locking rod leaves the inner sides of the locking grooves of the fixed blade head and the movable blade head in turn, and the unlocking process can be completed by pulling the pulling block, so that the fixed blade head and the movable blade head can be easily moved out from the inner side of the first sliding groove, which greatly simplifies the maintenance process, improves the maintenance efficiency, and is simple to disassemble and replace, avoiding the cost of purchasing new tools due to damage to the entire tool, thereby reducing the maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of unpacking scissors, in particular to a pair of unpacking scissors which are convenient for disassembly and maintenance and save labor. Background Art

[0002] Baling shears are a tool specifically designed to cut steel strapping or other types of baling materials.

[0003] In a Chinese patent with the authorization announcement number CN216706121U, a labor-saving unpacking shear is disclosed, which includes a movable cutter head and a fixed cutter head. The middle part of the movable cutter head and the middle part of the fixed cutter head are hinged through a first rotating shaft, the end of the movable cutter head is hinged to one end of a movable handle through a second rotating shaft, the end of the fixed cutter head is fixedly connected to one end of the fixed handle, and the end of the fixed cutter head is provided with a movable connecting rod with one end hinged to it through a third rotating shaft, and the other end of the movable connecting rod is hinged to the movable handle through a fourth rotating shaft, and the fourth rotating shaft is located below the second rotating shaft and close to one side of the fixed cutter head. There is a movable hinge between the movable handle and the movable cutter head, and there is also a movable hinge between the movable cutter head and the fixed cutter head, which can greatly improve the lever effect when used and achieve the purpose of labor saving. There is also a movable hinge between the movable connecting rod and the movable handle, which improves the labor-saving effect. Both the movable cutter head and the fixed cutter head are made of chrome-vanadium steel, which are sharp, strong and wear-resistant after forging and quenching, and their service life is greatly extended. The combination of the moving blade and the fixed blade is in a duckbill shape, which is applicable to both shearing operations.

[0004] The above patent has the following defects: in the existing device, the fixed blade head and the movable blade head are fixedly connected with the movable handle and the fixed handle. When the blade on the surface of the fixed blade head or the movable blade head is damaged, the unpacking shears need to be replaced as a whole, and the damaged fixed blade head or the movable blade head cannot be replaced and repaired. Therefore, a labor-saving unpacking shears that is easy to disassemble and repair is proposed. Utility Model Content

[0005] The utility model aims to provide a pair of labor-saving unpacking shears that are convenient for disassembly and maintenance, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a labor-saving unpacking shears that is convenient for disassembly and maintenance, comprising a movable handle and a fixed handle, a first connecting frame is fixed to one end of the movable handle, a second connecting frame is fixed to one end of the fixed handle, a movable connecting rod is hinged between the first connecting frame and the second connecting frame, a fixed blade head is arranged on one side of the second connecting frame, a movable blade head is arranged on one side of the first connecting frame, a disassembly assembly is arranged on one side of the fixed blade head and the movable blade head, and the disassembly assembly is used for fast disassembly and maintenance of the fixed blade head and the movable blade head;

[0007] The disassembly assembly includes two support frames, each of which is provided with a first slide groove and a second slide groove, and an inner wall of the second slide groove is provided with a limiting groove.

[0008] Preferably, protective sleeves are sleeved on the outer sides of the ends of the movable handle and the fixed handle away from the first connecting frame and the second connecting frame.

[0009] Preferably, a locking groove is provided on one side of the fixed blade head and the movable blade head, a locking rod inserted into the locking groove is slidably connected to the inner side of the second sliding groove, and a pulling block is fixed to one end of the top of the locking rod.

[0010] Preferably, the first slide groove and the second slide groove are arranged perpendicular to each other, a slide plate is slidably connected to the inner side of the limiting groove, and a first ventilation hole is opened on one side of the slide plate.

[0011] Preferably, a second vent hole is provided on the inner wall of the second slide groove, and the outer sides of one ends of the fixed blade head and the movable blade head are inserted into the inner side of the first slide groove.

[0012] Preferably, a spring is connected between one side of the slide plate and the inner side of the limiting groove, wherein the bottom of one of the support frames is fixed to one side of the second connecting frame, and the bottom of the other support frame is hinged to one side of the first connecting frame.

[0013] Preferably, the fixed blade head and the movable blade head are hinged to each other in the middle, and one side of the slide plate is fixed to one side of the locking rod.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] 1. By utilizing the principle of leverage and longer movable and fixed handles, employees can cut the steel strapping tape more effortlessly when using it, reducing the physical exertion of operators and improving work efficiency.

[0016] Second, by using pliers to pull the pull block to drive the locking rod and the slide plate to move to one side, the slide plate compresses the spring, and the locking rod leaves the inner side of the locking groove of the fixed blade head and the movable blade head in turn, and the unlocking process can be completed by pulling the pull block, so that the fixed blade head and the movable blade head can be easily moved out from the inner side of the first slide groove, which greatly simplifies the maintenance process, improves the maintenance efficiency, and simple disassembly and replacement avoids the cost of purchasing new tools due to damage to the entire tool, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0021] Figure 4 This is a structural schematic diagram of the lock rod of the utility model;

[0022] Figure 5 It is a schematic diagram of the main cross-sectional structure of the support frame of the utility model.

[0023] Explanation of the accompanying drawings: 1. movable handle; 2. fixed handle; 3. first connecting frame; 4. protective cover; 5. second connecting frame; 6. movable connecting rod; 7. fixed blade head; 8. movable blade head; 9. disassembly assembly; 91. support frame; 92. pull block; 93. locking rod; 94. limiting groove; 95. first ventilation hole; 96. slide plate; 97. first slide groove; 98. locking groove; 99. second slide groove; 910. second ventilation hole; 911. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0026] Example

[0027] See also Figure 1-5The utility model provides a technical solution: a labor-saving unpacking shears that is convenient for disassembly and maintenance, comprising a movable handle 1 and a fixed handle 2, a first connecting frame 3 is fixed to one end of the movable handle 1, a second connecting frame 5 is fixed to one end of the fixed handle 2, a movable connecting rod 6 is hinged between the first connecting frame 3 and the second connecting frame 5, a fixed blade head 7 is arranged on one side of the second connecting frame 5, two hands hold the protective sleeve 4 outside the movable handle 1 and the fixed handle 2 respectively, and then pull the movable handle 1 to one side, at this time, the movable handle 1 drives the first connecting frame 3 to rotate with the hinge axis of the movable connecting rod 6, and at the same time, the first connecting frame 3 drives one end of the movable blade head 8 to rotate around the hinge axis of the support frame 91, and a movable blade head 8 is arranged on one side of the first connecting frame 3;

[0028] The movable handle 1, the fixed handle 2, the first connecting frame 3, the protective cover 4, the second connecting frame 5, the movable connecting rod 6, the fixed blade head 7 and the movable blade head 8 constitute an unpacking shear. A disassembly assembly 9 is provided on one side of the fixed blade head 7 and the movable blade head 8. The hinge shaft of the movable blade head 8 and the fixed blade head 7 rotates, and the blade parts of the fixed blade head 7 and the movable blade head 8 are separated from each other. At this time, the movable handle 1 is pushed toward the side of the fixed handle 2, so that the movable blade head 8 moves toward the side of the fixed blade head 7 to cut the steel packing tape. The disassembly assembly 9 is used for quick disassembly and maintenance of the fixed blade head 7 and the movable blade head 8. The outer sides of the ends of the movable handle 1 and the fixed handle 2 away from the first connecting frame 3 and the second connecting frame 5 are sleeved with protective covers 4.

[0029] In order to facilitate the disassembly and maintenance of the fixed blade head 7 and the movable blade head 8, a disassembly assembly 9 is provided. The disassembly assembly 9 includes two support frames 91. The support frames 91 are respectively provided with a first slide groove 97 and a second slide groove 99. The inner wall of the second slide groove 99 is provided with a limiting groove 94. A locking groove 98 is provided on one side of the fixed blade head 7 and the movable blade head 8. A locking rod 93 inserted into the inner side of the locking groove 98 is slidably connected to the inner side of the second slide groove 99. The pull block 92 is clamped in turn with pliers. At this time, the pull block 92 drives the locking rod 93 and the slide plate 96 to move to one side. At this time, the slide plate 96 will The spring 911 is compressed, and the locking rod 93 leaves the inner sides of the locking grooves 98 of the fixed blade head 7 and the movable blade head 8 in turn. A pull block 92 is fixed to one end of the top of the locking rod 93. The first slide groove 97 and the second slide groove 99 are arranged perpendicular to each other. A slide plate 96 is slidably connected to the inner side of the limiting groove 94. A first vent hole 95 is provided on one side of the slide plate 96. The first vent hole 95 prevents inconsistent air pressure on both sides of the slide plate 96, and organizes the movement of the slide plate 96 to clamp the fixed blade head 7 and the movable blade head 8 in turn and move them to one side out of the inner side of the first slide groove 97. At this time, the disassembly of the fixed blade head 7 and the movable blade head 8 can be completed.

[0030] A second air vent 910 is provided on the inner wall side of the second slide groove 99, and the second air vent 910 facilitates the fixed blade head 7 and the movable blade head 8 to be inserted into the inner side of the second slide groove 99. The outer side of one end of the fixed blade head 7 and the movable blade head 8 is inserted into the inner side of the first slide groove 97. A spring 911 is connected between one side of the slide plate 96 and the inner side of the limiting groove 94. The fixed blade head 7 and the movable blade head 8 are inserted into the inner side of the first slide groove 97 in sequence with one end away from the blade, and then the pulling force of the pulling block 92 is released. Under the elastic force of the spring 911, the locking rod 93 is pushed to be inserted into the inner side of the locking groove 98. At this time, the disassembly and maintenance of the fixed blade head 7 and the movable blade head 8 are completed. The bottom of one of the support frames 91 is fixed to one side of the second connecting frame 5, and the bottom of the other support frame 91 is hinged to one side of the first connecting frame 3. One side of the slide plate 96 is fixed to one side of the locking rod 93.

[0031] The fixed blade head 7 and the movable blade head 8 are hinged to each other in the middle, and the hinge axis of the fixed blade head 7 and the movable blade head 8 is a metal axis. A limit block is provided at one end of the metal column, and a groove is provided at the other end. A clamping ring is clamped on the inner side of the groove. The clamping ring can be removed by means of a circlip pliers, so that the metal column can be removed from the hinge axis hole of the fixed blade head 7 and the movable blade head 8.

[0032] Working principle or structural principle: when the unpacking shears are in use, the employee holds the protective cover 4 on the outside of the movable handle 1 and the fixed handle 2 with both hands respectively, and then pulls the movable handle 1 to one side. At this time, the movable handle 1 drives the first connecting frame 3 to rotate with the hinge axis of the movable connecting rod 6. At the same time, the first connecting frame 3 drives one end of the movable cutter head 8 to rotate around the hinge axis of the support frame 91. At this time, the hinge axis of the movable cutter head 8 and the fixed cutter head 7 rotates, and the blade parts of the fixed cutter head 7 and the movable cutter head 8 are separated from each other. At this time, the movable handle 1 is pushed toward the side of the fixed handle 2, so that the movable cutter head 8 moves toward the side of the fixed cutter head 7 to cut the steel strapping tape. Through the longer movable handle 1 and the fixed handle 2, the steel strapping tape can be cut with great effort by utilizing the principle of leverage;

[0033] When the fixed blade head 7 and the movable blade head 8 are damaged on the surface during use and need to be disassembled for maintenance, firstly, the hinge shafts of the fixed blade head 7 and the movable blade head 8 are removed using tools, and then the pull block 92 is clamped in turn with pliers. At this time, the pull block 92 drives the locking rod 93 and the slide plate 96 to move to one side. At this time, the slide plate 96 compresses the spring 911, and at the same time, the locking rod 93 leaves the inner side of the locking groove 98 of the fixed blade head 7 and the movable blade head 8 in turn. Then, another pair of pliers is used to clamp the fixed blade head 7 and the movable blade head 8 in turn. The movable cutter head 8 moves to one side out of the inner side of the first slide groove 97, and the disassembly of the fixed cutter head 7 and the movable cutter head 8 is completed at this time; when disassembling and assembling the fixed cutter head 7 and the movable cutter head 8, another worker can rotate the movable handle 1 and the fixed handle 2 to different angles, so that the angles of the fixed cutter head 7 and the movable cutter head 8 are adapted to the first slide groove 97, so as to facilitate the disassembly and assembly of the fixed cutter head 7 and the movable cutter head 8 in sequence, and after the disassembly and assembly of the fixed cutter head 7 and the movable cutter head 8 is completed, the hinge shaft is installed at the hinge of the fixed cutter head 7 and the movable cutter head 8;

[0034] Take the new or repaired fixed blade head 7 and movable blade head 8, insert the end away from the blade into the inner side of the first slide groove 97 in turn, then release the pulling force of the pulling block 92, at this time, under the elastic force of the spring 911, push the locking rod 93 to insert into the inner side of the locking groove 98, and the disassembly and maintenance of the fixed blade head 7 and the movable blade head 8 are completed. When replacing the fixed blade head 7 and the movable blade head 8, another worker can turn the movable handle 1 and the fixed handle 2 to different angles, so that the angles of the fixed blade head 7 and the movable blade head 8 are adapted to the first slide groove 97, so as to facilitate the disassembly and assembly of the fixed blade head 7 and the movable blade head 8.

[0035] In summary, by utilizing the lever principle and the longer movable handle 1 and fixed handle 2, employees can cut the steel strapping belt more effortlessly when using it, thereby reducing the physical exertion of the operator and improving work efficiency.

[0036] By using pliers to pull the pull block 92, the locking rod 93 and the slide plate 96 are moved to one side. At this time, the slide plate 96 compresses the spring 911, and the locking rod 93 leaves the inner side of the locking groove 98 of the fixed blade head 7 and the movable blade head 8 in turn. The unlocking process can be completed by pulling the pull block 92, so that the fixed blade head 7 and the movable blade head 8 can be easily moved out from the inner side of the first slide groove 97, which greatly simplifies the maintenance process, improves the maintenance efficiency, and simple disassembly and replacement avoids the cost of purchasing new tools due to damage to the entire tool, thereby reducing the maintenance cost.

[0037] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A labor-saving unpacking shears for convenient disassembly and maintenance, comprising a movable handle (1) and a fixed handle (2), characterized in that: A first connecting frame (3) is fixed to one end of the movable handle (1), a second connecting frame (5) is fixed to one end of the fixed handle (2), a movable connecting rod (6) is hinged between the first connecting frame (3) and the second connecting frame (5), a fixed blade head (7) is arranged on one side of the second connecting frame (5), a movable blade head (8) is arranged on one side of the first connecting frame (3), and a disassembly assembly (9) is arranged on one side of the fixed blade head (7) and the movable blade head (8), and the disassembly assembly (9) is used for quickly disassembling and assembling the fixed blade head (7) and the movable blade head (8) for maintenance; The disassembly assembly (9) comprises two support frames (91), wherein a first slide groove (97) and a second slide groove (99) are respectively provided inside the support frames (91), and a limiting groove (94) is provided on the inner wall of the second slide groove (99).

2. The labor-saving unpacking scissors for convenient disassembly and maintenance according to claim 1 are characterized by: The outer sides of the movable handle (1) and the fixed handle (2) which are away from the first connecting frame (3) and the second connecting frame (5) are both sleeved with protective sleeves (4).

3. The labor-saving unpacking scissors for convenient disassembly and maintenance according to claim 1 are characterized by: A locking groove (98) is provided on one side of the fixed blade head (7) and the movable blade head (8); a locking rod (93) inserted into the locking groove (98) is slidably connected to the inner side of the second sliding groove (99); a pull block (92) is fixed to one end of the top of the locking rod (93).

4. The labor-saving unpacking scissors for convenient disassembly and maintenance according to claim 3 are characterized by: The first slide groove (97) and the second slide groove (99) are arranged perpendicular to each other, a slide plate (96) is slidably connected to the inner side of the limiting groove (94), and a first ventilation hole (95) is opened on one side of the slide plate (96).

5. The labor-saving unpacking scissors for convenient disassembly and maintenance according to claim 4 are characterized by: A second vent hole (910) is provided on the inner wall of the second slide groove (99), and the outer sides of one ends of the fixed blade head (7) and the movable blade head (8) are inserted into the inner side of the first slide groove (97).

6. The labor-saving unpacking scissors for convenient disassembly and maintenance according to claim 5, characterized in that: A spring (911) is connected between one side of the slide plate (96) and the inner side of the limiting groove (94), the bottom of one of the support frames (91) is fixed to one side of the second connecting frame (5), and the bottom of the other support frame (91) is hinged to one side of the first connecting frame (3).

7. The labor-saving unpacking scissors for convenient disassembly and maintenance according to claim 6, characterized in that: The fixed blade head (7) and the movable blade head (8) are hinged to each other in the middle, and one side of the slide plate (96) is fixed to one side of the locking rod (93).

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