Portable multi-blade adjustable bamboo breaking device
The design of the detachable sleeve and variable blade assembly solves the problems of concentrated weight and limited functionality in traditional bamboo splitters, achieving portability and flexible blade configuration, improving field operation efficiency and reducing maintenance costs.
Patent Information
- Application Number
- CN202520600889.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Traditional bamboo splitters are characterized by concentrated weight, rigid structure, and limited functionality. They cannot adjust the cutting blade, requiring operators to carry multiple sets of equipment, increasing workload and costs. Furthermore, the entire device becomes unusable when a part of it is damaged.
Designed as a detachable sleeve and variable edge assembly, including a detachable sleeve, grip, variable edge assembly, and locking fitting, it allows for flexible adjustment of the number and layout of blades, and its modular structure facilitates carrying and maintenance.
It reduces the workload of field workers, improves sampling efficiency, reduces maintenance costs, and enables single-person multi-specification sampling and convenient operation.
Smart Images

Figure CN224004690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bamboo processing tools, and in particular to a portable multi-bladed adjustable bamboo splitter. Background Technology
[0002] Currently, bamboo splitting tools widely used in my country's bamboo sampling field are showing a diversified development trend. The market includes both traditional manual tools and some mechanized improved equipment. Traditional bamboo splitters, as the mainstream tools, are designed based on decades of industry experience and are usually made using metal forging or casting processes. They are characterized by stable structure and strong cutting force. These devices are mostly used in bamboo forest resource surveys, bamboo quality testing, and scientific research sample collection, playing a fundamental role in standardized operation scenarios.
[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:
[0004] Traditional bamboo splitters generally adopt a one-piece cast structure, with a weight concentrated in the range of 1.5-3kg. The rigid structural design leads to a single function, and the fixed number of cutting blades cannot be adjusted. When facing different needs such as different parts of bamboo, different stalk diameters, and different sample specifications, operators need to carry multiple sets of equipment to use in rotation, which inevitably increases the workload of operators and seriously reduces the efficiency of field operations. At the same time, traditional bamboo splitters are scrapped when they are partially damaged. Combined with the increased manpower input due to low efficiency, the overall cost of a single scientific research sampling is high.
[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, this utility model proposes a portable multi-blade adjustable bamboo splitter, which solves the problems mentioned in the background technology.
[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:
[0008] A portable multi-blade adjustable bamboo splitter includes a detachable sleeve and two handles, each symmetrically distributed and threaded onto the outer wall of the detachable sleeve via threaded seats, and a variable blade assembly fixedly installed inside the detachable sleeve.
[0009] The variable blade assembly includes a fixing post and a blade, as well as a locking fitting for fixing the blade. The outer wall of the fixing post has eight dovetail grooves arranged in a circular array for mounting the blade. The bottom end of the fixing post has a threaded hole for threaded connection of the locking fitting. The inner side of the blade has a locking strip that fits into the dovetail grooves, and the outer side of the blade has a locking head for supporting its installation.
[0010] The detachable sleeve includes a first cylindrical piece and a second cylindrical piece fixedly spliced together by two bolts. The middle of the two splicing edges of the first cylindrical piece is provided with a convex joint, and the middle of the outer wall of the two convex joints is provided with a first hole seat distributed in the vertical direction for bolts to pass through and install. The middle of the two splicing edges of the second cylindrical piece is provided with a concave joint adapted to snap into the convex joint, and the middle of the upper and lower parts of the concave joint and the outer wall of the second cylindrical piece are both welded with a second hole seat for bolts to pass through and install. The top of the inner wall of the first cylindrical piece and the second cylindrical piece is provided with four flared grooves for positioning and accommodating the clamping head, and the eight flared grooves are arranged in a ring array when the first cylindrical piece and the second cylindrical piece are spliced together.
[0011] Preferably, the outer end of the handle has a perforated hole distributed coaxially therewith, and the outer wall of the handle is wrapped with adhesive. The perforated hole extends axially from the open end to the closed end along the handle, forming a perforated weight-reducing design, further reducing the overall weight of the bamboo splitter and improving portability. Simultaneously, the adhesive wrapping around the outside of the handle increases friction, preventing slippage and further improving the comfort of the user's grip.
[0012] Preferably, the bolt consists of a threaded rod and a dovetail nut that is threaded to fit the threaded rod. The bolt serves as a connecting component between the first and second cylindrical plates, providing a locking and positioning effect. Preferably, the use of a dovetail nut improves ease of operation for workers.
[0013] Preferably, the locking accessory includes a knob seat, and a threaded post and a cone head coaxially and perpendicularly disposed at the top and bottom of the knob seat, respectively. The threaded post is threadedly adapted to the threaded hole. The locking accessory achieves locking at the bottom of the fixed post by means of the threaded post and threaded hole, thereby positioning each blade mounted on the fixed post. Preferably, the cone head at the bottom of the knob seat can be used with the curved blade edge design to significantly reduce the resistance when cutting bamboo. The design of the knob seat also facilitates easy assembly and disassembly of the locking accessory by the operator.
[0014] The beneficial effects of this utility model are:
[0015] The technical solution of this utility model disassembles a traditional bamboo splitter into multiple parts according to the characteristics of each part, making it easy to carry and assemble. At the same time, with the help of the variable blade component and locking accessories, the number of blades can be configured as needed, realizing single-person, single-tool and multi-specification sampling operations. Compared with the operation mode of carrying multiple sets of traditional bamboo splitters, it significantly reduces the workload of field workers, optimizes labor costs, greatly improves the convenience of field sampling, and improves operation efficiency. In addition, the modular structural design allows for individual replacement of damaged parts, reducing maintenance costs compared with the traditional whole scrapping mode. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the installation structure of the grip of this utility model;
[0018] Figure 3 This is a schematic diagram of the detachable sleeve of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the variable blade assembly of this utility model;
[0020] Figure 5 This is a schematic diagram of the disassembled structure of the variable blade assembly of this utility model;
[0021] Figure 6 This is a schematic diagram of the blade structure of this utility model;
[0022] Figure 7 This is a schematic diagram of the installation structure of the variable blade assembly of this utility model;
[0023] Figure 8 This is a schematic diagram of the structure of the grip of this utility model;
[0024] Figure 9 This is a schematic diagram showing the layout of the variable blade assembly of this utility model with different numbers of blades;
[0025] Figure 10 This is a schematic diagram showing the position of the threaded seat of this utility model;
[0026] Explanation of reference numerals in the attached figures:
[0027] 100. Detachable sleeve;
[0028] 110. Bolt; 120. First cylindrical plate; 130. Second cylindrical plate; 140. Flared groove;
[0029] 1110, Screw; 1120, Dovetail nut;
[0030] 1210, Convex connector; 1220, First hole seat;
[0031] 1310, concave connector; 1320, second hole seat;
[0032] 200. Threaded seat;
[0033] 300. Grip;
[0034] 310. Hollowed-out holes; 320. Gel adhesive;
[0035] 400. Variable Edge Assembly;
[0036] 410. Fixing post; 420. Blade; 430. Locking accessory;
[0037] 4110, dovetail groove; 4120, threaded hole;
[0038] 4210, Card strip; 4220, Card header;
[0039] 4310, Knob seat; 4320, Threaded post; 4330, Cone head. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0041] Please see Figure 1-10 This utility model provides a technical solution: a portable multi-blade adjustable bamboo splitter, including a detachable sleeve 100 and two handles 300 symmetrically distributed and threaded onto the outer walls of the detachable sleeve 100 via threaded seats 200, and a blade-changing assembly 400 fixedly installed inside the detachable sleeve 100. The blade-changing assembly 400 includes a fixing post 410 and a blade 420, and a locking accessory 430 for fixing the blade 420. The outer wall of the fixing post 410 has eight dovetail grooves 4110 arranged in a ring array for mounting the blade 420. The bottom end of the fixing post 410 has a threaded hole 4120 for threaded connection of the locking accessory 430. The inner side of the blade 420 has a locking strip 4210 that fits into the dovetail groove 4110, and the outer side of the blade 420 has a locking head 4220 for supporting its installation. The detachable sleeve 100 includes... The first cylindrical plate 120 and the second cylindrical plate 130 are fixedly spliced by two bolts 110. The middle of the two splicing sides of the first cylindrical plate 120 is provided with a convex joint 1210, and the middle of the outer wall of the two convex joints 1210 is provided with a first hole seat 1220 distributed vertically for the bolts 110 to pass through and install. The middle of the two splicing sides of the second cylindrical plate 130 is provided with a concave joint 1310 that is adapted to engage with the convex joint 1210. The middle of the upper and lower parts of the concave joint 1310 and the outer wall of the second cylindrical plate 130 are provided with a second hole seat 1320 for the bolts 110 to pass through and install. The top of the inner wall of the first cylindrical plate 120 and the second cylindrical plate 130 are provided with four flared grooves 140 for the positioning and accommodation of the clamp head 4220. The eight flared grooves 140 are arranged in a ring array when the first cylindrical plate 120 and the second cylindrical plate 130 are spliced together.
[0042] Based on the above structural design, this portable multi-blade adjustable bamboo splitter consists of a detachable sleeve 100, two handles 300, and a blade-changing assembly 400. The blade-changing assembly 400 typically adjusts the number and layout of the blades 420 as follows: Figure 9 As shown, the blades are two-bladed, four-bladed, and eight-bladed, respectively, and the two handles 300 are symmetrically arranged and can be screwed onto the first cylindrical plate 120 and the second cylindrical plate 130 respectively via threaded seats 200, as shown. Figure 10 As shown, two threaded seats 200 are respectively offset and welded to the outer wall of the first cylindrical plate 120 and the second cylindrical plate 130 at a position of 22.5°, which can limit the relative position of the handle 300 and the blade 420. When the operator is working, it can limit the outward turning direction of the bamboo strip after it is split, so as to reduce the impact of the outward turning bamboo strip on the operator's operation. At the same time, as Figure 7 As shown, this ensures that the opening and closing of the first cylindrical blade 120 and the second cylindrical blade 130, in conjunction with the flared groove 140, facilitates the smooth assembly and disassembly of the variable blade assembly 400. Specifically, during use, the operator first adjusts the number of blades 420 as needed based on the sampled bamboo material. The detailed layout is as follows: Figure 9 As shown, the operator, using the interlocking dovetail grooves 4110 and locking strips 4210, can clamp the required number of blades 420 onto the fixing post 410 according to the corresponding layout. By tightening the locking fittings 430 to the bottom of the fixing post 410, the blades 420 are secured, completing the assembly of the variable blade assembly 400. Subsequently, the operator pre-clamps the first cylindrical plate 120 and the second cylindrical plate 130 onto the outside of the variable blade assembly 400 using the convex connector 1210 and concave structure. The locking head 4220 is embedded into the corresponding flared groove 140. After the first cylindrical plate 120 and the second cylindrical plate 130 are combined into a cylindrical frame, the variable blade assembly 400 is positioned. At this point, the operator can sequentially assemble two sets of bolts 110 at the two joints of the first cylindrical plate 120 and the second cylindrical plate 130. The bolts 110 are locked to the first hole seat 1220 and the two second... On the hole seat 1320, a fixed connection is achieved at the splicing point, completing the assembly of the detachable sleeve 100. Finally, the worker screws the two handles 300 onto the two threaded seats 200 respectively, thus completing the assembly of the portable multi-blade adjustable bamboo splitter. This portable multi-blade adjustable bamboo splitter, by disassembling the traditional bamboo splitter into multiple parts according to the characteristics of each part, is easy to carry and assemble. At the same time, with the help of the variable blade component 400 and the locking accessory 430, the number of blades 420 can be configured as needed, realizing single-person, single-device and multi-specification sampling operations. Compared with the operation mode of carrying multiple sets of traditional bamboo splitters, it significantly reduces the workload of field workers, optimizes labor costs, greatly improves the convenience of field sampling, and improves operation efficiency. In addition, the modular structural design allows for individual replacement of damaged parts, reducing maintenance costs compared with the traditional whole scrapping mode.
[0043] Furthermore, the outer end of the grip 300 is provided with a hollow hole 310 coaxially distributed therewith, and the outer wall of the grip 300 is wrapped with a hand glue 320.
[0044] Furthermore, the bolt 110 consists of a threaded rod 1110 and a dovetail nut 1120 that is threaded to fit the threaded rod 1110.
[0045] Furthermore, the locking accessory 430 includes a knob seat 4310, and a threaded post 4320 and a cone 4330 respectively coaxially and vertically disposed at the top and bottom of the knob seat 4310, with the threaded post 4320 threadedly adapted to the threaded hole 4120.
[0046] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A portable multi-blade adjustable bamboo breaker, characterized in that: It comprises a detachable sleeve (100), two handles (300) symmetrically distributed by threaded seats (200) and a variable blade assembly (400) fixedly installed inside the detachable sleeve (100). The variable blade assembly (400) comprises a fixed column (410), a blade (420) and a locking fitting (430) for fixing the blade (420), eight dovetail grooves (4110) for assembling the blade (420) are arranged in a ring array on the outer wall of the fixed column (410), a threaded hole (4120) for threadedly connecting the locking fitting (430) is arranged at the bottom end of the fixed column (410), a clamping strip (4210) is arranged on the inner side of the blade (420) and is adapted to be clamped with the dovetail groove (4110), and a clamping head (4220) is arranged on the outer side of the blade (420) and is adapted to support and install the blade (420). The detachable sleeve (100) comprises a first sleeve piece (120) and a second sleeve piece (130) fixedly spliced by two bolts (110), a convex joint (1210) is arranged at the middle of each of the two splicing edges of the first sleeve piece (120), a first hole seat (1220) is arranged on the middle of the outer wall of each of the two convex joints (1210) and is adapted to be penetrated and installed by the bolt (110) in the vertical direction, a concave joint (1310) is arranged at the middle of each of the two splicing edges of the second sleeve piece (130) and is adapted to be clamped with the convex joint (1210), a second hole seat (1320) is welded on the outer wall of the second sleeve piece (130) above and below the concave joint (1310) and is adapted to be penetrated and installed by the bolt (110), four flared grooves (140) are arranged on the top of the inner walls of the first sleeve piece (120) and the second sleeve piece (130) and are adapted to position and accommodate the clamping head (4220), and the eight flared grooves (140) are arranged in a ring array in the spliced state of the first sleeve piece (120) and the second sleeve piece (130).
2. The portable multi-blade adjustable bamboo breaker according to claim 1, wherein: A hollow hole (310) is arranged on the outer end of the handle (300) and is coaxially distributed with the handle (300), and a hand rubber (320) is wrapped around the outer wall of the handle (300).
3. The portable multi-blade adjustable bamboo breaker according to claim 1, wherein: The bolt (110) comprises a screw rod (1110) and a dovetail nut (1120) threadedly adapted with the screw rod (1110).
4. The portable multi-blade adjustable bamboo breaker according to claim 1, wherein: The locking fitting (430) comprises a knob seat (4310), a threaded column (4320) and a tapered head (4330) coaxially and vertically arranged on the top and bottom of the knob seat (4310), respectively, and the threaded column (4320) is threadedly adapted with the threaded hole (4120).