A ton bag cutting sickle
By designing a length adjustment component and anti-slip sleeve for the ton bag cutting sickle, the safety issues of ton bag cutting tools were solved, enabling safe cutting over long distances, reducing operator risks, and improving cutting flexibility and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO SPECIAL STEEL CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-30
AI Technical Summary
Existing ton bag cutting tools lack safety design, leading to risks such as material release, mechanical injury, and difficulty in controlling the cutting angle for operators during the cutting process, resulting in frequent workplace accidents.
A ton bag cutting sickle was designed, which adopts a length adjustment component and an anti-slip sleeve. The length and angle of the handle can be adjusted by rotating the threaded rod and the limiting component. Combined with the elastic clamping plate and the limiting structure, the operation safety is ensured.
It enables safe cutting from a distance, reduces the risk of physical injury to operators, improves cutting safety and operational flexibility, and reduces workplace accidents.
Smart Images

Figure CN224428188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting tool technology, and in particular to a ton bag cutting sickle. Background Technology
[0002] In the continuous casting production process, ton bags are an important carrier for material transportation. They are often moved above the feed inlet of the mixer by hoisting equipment, and the material is put in by manually cutting the bottom of the bag.
[0003] In traditional cutting operations, operators must use a sickle tool with a short handle, extending their arms into the narrow space between the bottom of the ton bag and the mixer's feed inlet to cut. During this process, the operator's limbs are directly exposed beneath the ton bag, facing multiple safety hazards: first, the material inside the bag may suddenly release due to gravity, causing a falling object; second, the operator's arm, being close to the machine's feed inlet, is easily caught in moving parts, leading to mechanical injury; third, the short-handled sickle limits operating space, making it difficult to control the cutting angle, and increasing the risk of accidental cuts due to tool slippage. Existing cutting tools for such scenarios generally lack safety designs, such as the absence of anti-slip handles, insufficient length adaptability, and the lack of protective structures, resulting in high operational risks and frequent workplace accidents. Therefore, there is an urgent need for a specialized tool that enables safe cutting from a distance and reduces the risk of personnel limb involvement, thereby improving the working environment and ensuring personnel safety. Utility Model Content
[0004] The purpose of this utility model is to provide a ton bag cutting sickle that can solve the problems mentioned in the background.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ton bag cutting sickle, including a handle, wherein a length adjustment component is provided on the outer surface of the handle.
[0006] In a preferred embodiment, the length adjustment assembly includes an extension tube, which is slidably disposed on the outer surface of the handle. Limiting components are fixedly installed on both sides of the outer surface of the handle, and both limiting components are slidably disposed inside the extension tube. A threaded rod is threadedly installed inside the handle, and the other end of the threaded rod is rotatably mounted on one side of the extension tube. A knob is fixedly installed on one end of the threaded rod.
[0007] The technical effect of adopting the above-mentioned further solution is that the handle can slide inside the extension tube by rotating the threaded rod, thereby adjusting the length of the sickle handle according to the actual situation.
[0008] In a preferred embodiment, the length adjustment assembly further includes an extension tube II, which is slidably disposed on the outer surface of the handle. One end of the extension tube II is fixedly fitted with a threaded opening, which is slidably disposed on the outer surface of the handle. A clamping piece is fixedly fitted at one end of the threaded opening, and a fixing member is threadedly installed on the outer surface of the threaded opening. The inner side of one end of the fixing member is configured as a constricted shape.
[0009] The technical effect of adopting the above-mentioned further solution is that by rotating the fixing member upward, the constriction design inside the upper end of the fixing member will no longer squeeze the internal clamping plate. The clamping plate is designed to be made of elastic material, so it will automatically spring back to its original position when there is no squeezing from the clamping plate. At this time, the clamping plate will no longer squeeze the handle, so the handle can be pulled to adjust the length of the sickle handle.
[0010] In a preferred embodiment, the extension tube 2 has two sliding grooves inside, and a limiting member 2 is slidably arranged in each of the two sliding grooves. The two limiting members 2 are respectively fixedly installed on both sides of the tool holder.
[0011] The technical effect of adopting the above-mentioned further solution is that by setting two limiting parts to slide in the slide groove, the tool holder can be limited and the tool holder can be prevented from falling off.
[0012] In a preferred embodiment, an anti-slip sleeve is fixedly installed on the outer surface of the extension tube.
[0013] The technical effect of adopting the above-mentioned further solution is that by setting an anti-slip sleeve, the friction of the handle can be increased, preventing the operator from slipping.
[0014] In a preferred embodiment, a support member is fixedly installed at one end of the knife handle, two arc-shaped plates are fixedly installed on one side of the support member, a rotating plate is slidably arranged on the upper side of the two arc-shaped plates, and a knife is fixedly installed on the other side of the rotating plate.
[0015] The technical effect of adopting the above-mentioned further solution is that the angle of the cutting tool can be adjusted by sliding the rotating plate on the outer surface of the arc plate.
[0016] In a preferred embodiment, two limiting members are fixedly installed at both ends of the rotating plate, and the two limiting members are slidably embedded in the two arc-shaped plates respectively.
[0017] The technical effect of adopting the above-mentioned further solution is that the rotating plate can be fixed on the outer surface of the support by the limiting member three, thereby preventing the rotating plate from falling off.
[0018] In a preferred embodiment, a threaded rod is rotatably mounted inside the rotating plate, and a knob is fixedly mounted at one end of the threaded rod. A half gear is engaged with one side of the knob, and the half gear is fixedly mounted on one side of the support member.
[0019] The technical effect of adopting the above-mentioned further solution is that the rotation of the rotating plate can be achieved by the meshing of the threaded rod and the half gear.
[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0021] In use, this invention allows for adjustment of the sickle handle length by rotating the threaded rod, which drives the handle to slide within the extension tube. This allows for adjustment of the sickle length according to different usage scenarios, effectively preventing materials from hitting the worker's arm when cutting ton bags. By rotating the fixing component upwards, the constricted design at the upper end of the fixing component will no longer compress the internal clamping plate. The clamping plate is made of elastic material and will automatically spring back to its original position when there is no more pressure from the clamping plate. At this time, the clamping plate no longer compresses the handle, allowing the handle to be pulled to adjust the sickle handle length. Attached Figure Description
[0022] Figure 1 A front view structural schematic diagram of a ton bag cutting sickle provided by this utility model;
[0023] Figure 2 Schematic diagram of the internal structure of a ton bag cutting sickle provided by this utility model Figure 1 ;
[0024] Figure 3 This utility model provides a ton bag cutting sickle. Figure 1 Enlarged view of the structure at point A in the middle;
[0025] Figure 4 A side view of a ton bag cutting sickle provided by this utility model;
[0026] Figure 5 A schematic diagram of the connection structure of a ton bag cutting sickle provided by this utility model;
[0027] Figure 6 Schematic diagram of the internal structure of a ton bag cutting sickle provided by this utility model Figure 2 .
[0028] Legend:
[0029] 100. Tool holder; 101. Extension tube one; 102. Threaded rod one; 103. Knob one; 104. Limiting component one; 201. Extension tube two; 202. Fixing component; 203. Threaded opening; 204. Clamping plate; 205. Slide groove; 206. Limiting component two; 301. Support component; 302. Arc plate; 303. Rotating plate; 304. Limiting component three; 305. Threaded rod two; 306. Knob two; 307. Half gear; 308. Tool; 309. Anti-slip sleeve. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Example 1, please refer to Figures 1 to 3 This utility model provides a technical solution: a ton bag cutting sickle, including a handle 100, a length adjustment assembly on the outer surface of the handle 100, the length adjustment assembly including an extension tube 101, the extension tube 101 being slidably disposed on the outer surface of the handle 100, limiting members 104 being fixedly installed on both sides of the outer surface of the handle 100, the two limiting members 104 being slidably disposed inside the extension tube 101, a threaded rod 102 being threadedly installed inside the handle 100, the other end of the threaded rod 102 being rotatably installed on one side of the extension tube 101, a knob 103 being fixedly installed on one end of the threaded rod 102, and a knob 103 being fixedly installed on the outer surface of the extension tube 101. The anti-slip sleeve 309 has a support member 301 fixedly installed at one end of the tool holder 100. Two arc-shaped plates 302 are fixedly installed on one side of the support member 301. A rotating plate 303 is slidably arranged on the upper side of the two arc-shaped plates 302. A tool 308 is fixedly installed on the other side of the rotating plate 303. Limiting members 304 are fixedly installed at both ends of the rotating plate 303. The two limiting members 304 are slidably embedded in the two arc-shaped plates 302 respectively. A threaded rod 305 is rotatably installed inside the rotating plate 303. A knob 306 is fixedly installed at one end of the threaded rod 305. A half gear 307 is meshed on one side of the knob 306. The half gear 307 is fixedly installed on one side of the support member 301.
[0032] In this embodiment, during use, first manually rotate the knob 103 at one end of the extension tube 101. Rotating the knob 103 will cause the internal threaded rod 102 to rotate. Since the tool holder 100 is threaded onto the outer surface of the threaded rod 102, and a limiting member 104 is installed on the outer side of the threaded rod 102, and the limiting member 104 is slidably disposed inside the extension tube 101, the limiting member 104 can limit the tool holder 100, preventing it from rotating inside the extension tube 101. This allows the tool holder 100 to move along the rotation of the threaded rod 102, at which point it can be operated according to the instructions. The distance between the personnel and the material is adjusted to lengthen the sickle handle. After adjusting the sickle handle length, manually turn knob 2 306. Knob 2 306 drives threaded rod 2 305 to rotate. Since the rotating plate 303 is slidably set on the outer surface of the support 301 through limiting member 304, the position of the rotating plate 303 on the outer surface of the support 301 can be controlled by the meshing between threaded rod 2 305 and half gear 307, thereby adjusting the angle of the cutter 308. At this time, the operator can adjust the angle of the cutter 308 according to the height of the material and their own position, so as to better cut the material.
[0033] Example 2, as Figures 4 to 6 The length adjustment assembly shown also includes an extension tube 201, which is slidably disposed on the outer surface of the tool holder 100. One end of the extension tube 201 is fixedly installed with a threaded port 203, which is slidably disposed on the outer surface of the tool holder 100. One end of the threaded port 203 is fixedly installed with a clamping piece 204, and a fixing member 202 is threadedly installed on the outer surface of the threaded port 203. The inner side of one end of the fixing member 202 is set into a constricted shape. Two sliding grooves 205 are opened inside the extension tube 201, and two limiting members 206 are slidably disposed in the two sliding grooves 205 respectively. The two limiting members 206 are fixedly installed on both sides of the tool holder 100 respectively.
[0034] In this embodiment, during use, the upper end of the fixing member 202 is designed with a constricted opening. Therefore, the upper end of the fixing member 202 will compress multiple clamping pieces 204. The clamping pieces 204 are made of elastic material. Therefore, the clamping pieces 204 can be tightly attached to the handle 100 by the compression of the fixing member 202, thereby fixing the handle 100. When it is necessary to adjust the length of the sickle handle, first rotate the fixing member 202 so that the fixing member 202 moves in the direction of the blade 308. When the fixing member 202 moves upward, the upper end of the fixing member 202 will gradually move away from the clamping pieces 204. At this time, the fixing member 202 will no longer continue to compress the clamping pieces 204, and the clamping pieces 204 will automatically reset and no longer be tightly attached to the handle 100, so the handle 100 can be pulled to achieve adjustment. After adjustment, rotate the fixing member 202 in the opposite direction, and the fixing member 202 will move downward along the threaded opening 203 to compress the clamping pieces 204 again to fix the handle 100.
[0035] Working principle: In use, first manually rotate the knob 103 at one end of the extension tube 101. Rotating the knob 103 will drive the internal threaded rod 102 to rotate. Since the tool holder 100 is threaded onto the outer surface of the threaded rod 102, and a limiting member 104 is installed on the outer side of the threaded rod 102, the limiting member 104 is slidably disposed inside the extension tube 101. Thus, the limiting member 104 can limit the tool holder 100, preventing the tool holder 100 from rotating inside the extension tube 101, thereby achieving the desired tool holder rotation. The handle 100 is displaced as it rotates along the threaded rod 102. At this point, the length of the sickle handle can be adjusted according to the distance between the operator and the material. After adjusting the handle length, the knob 306 is manually turned. The knob 306 causes the threaded rod 305 to rotate. Since the rotating plate 303 is slidably mounted on the outer surface of the support 301 via the limiting member 304, the position of the rotating plate 303 on the outer surface of the support 301 can be controlled by the meshing between the threaded rod 305 and the half-gear 307. The angle of the blade 308 can be adjusted. The operator can adjust the angle of the blade 308 according to the height of the material and their own position for better material cutting. The upper end of the fixing member 202 has a constricted opening, which compresses multiple clamping pieces 204. The clamping pieces 204 are made of elastic material, so the compression from the fixing member 202 allows the clamping pieces 204 to fit tightly against the handle 100, thus fixing the handle 100. When adjusting the length of the sickle handle, first rotate the fixing member 208. 2. The fixing member 202 moves in the direction of the tool 308. When the fixing member 202 moves upward, the upper end of the fixing member 202 will gradually move away from the clamping piece 204. At this time, the fixing member 202 will no longer squeeze the clamping piece 204, and the clamping piece 204 will automatically reset and no longer stick tightly to the tool holder 100. Thus, the tool holder 100 can be pulled to achieve adjustment. After adjustment, the fixing member 202 is rotated in the opposite direction, and the fixing member 202 will move downward along the threaded opening 203 to squeeze the clamping piece 204 again to fix the tool holder 100.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A bale cutter comprising a handle (100), characterized in that: The outer surface of the knife handle (100) is provided with a length adjustment component; The length adjustment assembly includes an extension tube (101), which is slidably disposed on the outer surface of the handle (100). Limiting components (104) are fixedly installed on both sides of the outer surface of the handle (100). Both limiting components (104) are slidably disposed inside the extension tube (101). A threaded rod (102) is threadedly installed inside the handle (100). The other end of the threaded rod (102) is rotatably installed on one side of the extension tube (101). A knob (103) is fixedly installed on one end of the threaded rod (102). The length adjustment assembly also includes an extension tube two (201), which is slidably disposed on the outer surface of the handle (100). One end of the extension tube two (201) is fixedly installed with a threaded opening (203), which is slidably disposed on the outer surface of the handle (100). One end of the threaded opening (203) is fixedly installed with a clamping piece (204), and a fixing member (202) is threadedly installed on the outer surface of the threaded opening (203). The inner side of one end of the fixing member (202) is set to a constricted shape.
2. A bale cutter as claimed in claim 1 wherein: The extension tube 2 (201) has two sliding grooves (205) inside, and two limiting members 2 (206) are slidably arranged in the two sliding grooves (205). The two limiting members 2 (206) are fixedly installed on both sides of the handle (100).
3. A bale cutter as claimed in claim 2 wherein: An anti-slip sleeve (309) is fixedly installed on the outer surface of the extension tube (101).
4. A bale cutter as claimed in claim 1 wherein: A support member (301) is fixedly installed at one end of the handle (100). Two arc-shaped plates (302) are fixedly installed on one side of the support member (301). A rotating plate (303) is slidably arranged on the upper side of the two arc-shaped plates (302). A cutting tool (308) is fixedly installed on the other side of the rotating plate (303).
5. A bale cutter as claimed in claim 4 wherein: Both ends of the rotating plate (303) are fixedly installed with limiting components three (304), and the two limiting components three (304) are slidably embedded in the two arc-shaped plates (302).
6. A bale cutter as claimed in claim 4 wherein: The rotating plate (303) has a threaded rod (305) rotatably mounted inside. A knob (306) is fixedly mounted on one end of the threaded rod (305). A half gear (307) is meshed on one side of the knob (306). The half gear (307) is fixedly mounted on one side of the support (301).