A hand-held collecting and excavating tool for fossils in layered rock
By integrating geological hammers, steel chisels, and steel crowbars, the applicability and portability issues of existing tools in fossil collection from layered rocks were resolved, achieving efficient and safe fossil excavation results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INST OF GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
- Filing Date
- 2025-03-05
- Publication Date
- 2026-05-26
Smart Images

Figure CN224274952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paleontological fossil excavation tools, specifically to a handheld excavation tool for collecting fossils in layered rocks. Background Technology
[0002] Fossils are the fundamental materials and the foundation of paleontological research; therefore, their collection and excavation are crucial. Currently, the tools used for field collection and excavation of fossils mainly include: hand tools such as geological hammers, steel chisels, steel picks, shovels, crowbars, and brushes; plaster casts, plaster bandages, and various types of wood used for making fossil models; and materials such as polyester resin, nitrocellulose varnish, and super glue used for reinforcement and bonding. However, due to differences in region and stratigraphy, even rocks from the same location and stratigraphy may exhibit variations in lithology. This variability necessitates tools that can flexibly adapt to different lithologies during field collection and excavation.
[0003] Currently available tools such as geological hammers, steel chisels, and steel rods are not ideally suited for all applications, leading to a series of problems:
[0004] 1. For rocks with good stratification and thin layers, existing wedge-shaped or pointed geological hammers are not very effective at splitting rock slabs. During the striking process, the thicker blade of the wedge-shaped geological hammer easily causes the thin rock slab to fracture, thereby damaging the fossils within.
[0005] 2. Although steel chisels have a variety of chisel tips to choose from, the chisel tip width, blade thickness, and toughness are not designed for layered rocks. As a result, in the field fossil collection and excavation work, it is either difficult to accurately split the rock slab or the fossils are accidentally damaged.
[0006] 3. Due to their large size and weight, steel chisels and crowbars are inconvenient to carry for staff who need to collect and excavate fossils in the field.
[0007] 4. Fossil collection and excavation requires a wide variety of tools, which are poorly integrated, causing many problems for staff when carrying these tools to the field.
[0008] To address the aforementioned issues, a handheld excavation tool for collecting fossils in layered rocks is proposed, which effectively solves problems such as the excessive thickness of the geological hammer blade causing damage to fossils, the insufficient adaptability of steel chisels to layered fossils, and the inconvenience of tool carrying and poor integration. Utility Model Content
[0009] One of the main objectives of this invention is to overcome at least one of the defects in the prior art and to provide a handheld excavation tool for collecting fossils in layered rocks.
[0010] To achieve the above technical solution, the present invention adopts the following technical solution:
[0011] According to one aspect of the present invention, a handheld excavation tool for collecting fossils in layered rocks is provided, comprising at least a geological hammer, a steel chisel, and a steel crowbar integrated tool.
[0012] The geological hammer comprises a hammerhead body and a handle. The hammerhead body is located at one end of the handle, with a circular hammerhead at the bottom and a wedge-shaped blade at the top. The overall length of the geological hammer is 28cm, with the handle being 25cm long and 3.5cm in diameter, the circular hammerhead having a diameter of 4cm, and the wedge-shaped blade having a width of 4cm and a thickness of 0.1cm. In this invention, the circular hammerhead is suitable for striking hard rock, and the wedge-shaped blade is designed for peeling layered rocks, effectively splitting rock slabs and reducing damage to fossils.
[0013] The steel chisel includes a chisel body, with a chisel head at the upper end and a pointed tip at the lower end. The tip is a steel chisel blade. There is an anti-slip texture on the outer side of the chisel body near the chisel head. The anti-slip texture can enhance the stability of operation in wet and slippery environments.
[0014] According to one embodiment of this utility model, steel chisels are divided into three specifications: a first steel chisel, a second steel chisel, and a third steel chisel. The third steel chisel has a chisel body width of 1.5cm and a thickness of 1cm, with a chisel edge width of 2.5cm and a blade thickness of 0.1cm. The second steel chisel has a chisel body width of 1.5cm and a thickness of 1cm, with a chisel edge width of 1.5cm and a blade thickness of 0.08cm. The first steel chisel has a chisel body width of 1cm and a thickness of 0.7cm, with a chisel edge width of 1cm and a blade thickness of 0.05cm. The length of the first, second, and third steel chisels is 18cm. Based on the chisel body width and thickness, as well as the chisel edge width and blade thickness, the first steel chisel is a small steel chisel, the second a medium steel chisel, and the third a large steel chisel. Different chisel blade thicknesses are suitable for different rock strata thicknesses, effectively splitting rock slabs and maximizing the protection of fossils.
[0015] The integrated steel chisel and crowbar tool includes a steel chisel body, a crowbar handle, and a non-slip handguard. The steel chisel body and the crowbar handle are connected by internal and external threads. The non-slip handguard is installed in the cavity at the tail end of the crowbar handle. The non-slip handguard is a protective sleeve with a accommodating cavity, and its end is an enlarged portion with a flat structure. The enlarged end of the non-slip handguard is designed to distribute impact stress and extend its service life.
[0016] According to one embodiment of this utility model, the top of the steel rod body is a steel rod bit, and its end is a steel rod connecting external thread; the top of the crowbar has a crowbar connecting internal thread that mates with the steel rod connecting external thread, and the middle end of the crowbar is a solid crowbar. The steel rod body is 25cm long and 3cm in diameter, the steel rod bit has a drill bit width of 2cm and a cutting edge thickness of 0.2cm; the crowbar is 150cm long and has a diameter of 3cm at its top, with its tail end gradually increasing in diameter, a tail end cavity length of 30cm, and a tail end cavity inner diameter of 4cm; the anti-slip hand guard is 20cm long, has a hollow receiving cavity, and its bulging end has a length and width of 4cm.
[0017] The anti-slip handguard provides a comfortable grip and safety protection, and also serves as an end cap for the crowbar's hollow cavity to prevent items from falling. Additionally, the anti-slip handguard can be fitted onto the end of the steel rod body as a protective sleeve, achieving dual protection. The integrated design of the steel rod body and crowbar improves fieldwork efficiency, while the flexible application of the anti-slip handguard increases the tool's practicality.
[0018] Furthermore, a rubber buffer pad is provided on the outer side of the anti-slip hand guard near the bulging part; when the anti-slip hand guard is attached to the end of the steel rod body, the rubber buffer pad can effectively buffer the impact force and protect the external thread of the end of the steel rod body from deformation.
[0019] According to one embodiment of the present invention, a toolbox is also included for storing the integrated tool consisting of the geological hammer, steel chisel, steel crowbar, and steel rod.
[0020] The geological hammer is located inside the toolbox near the left side, the steel chisel is located to the right of the geological hammer, and the integrated tool of steel chisel and crowbar is located below the geological hammer and steel chisel.
[0021] According to one embodiment of this utility model, an anti-slip grip sleeve is fitted on the outer side of the end of the hammer handle away from the hammer head body, which facilitates the operator's grip and ensures stable and safe operation. The anti-slip grip sleeve is made of thermoplastic rubber (TPR) material. The anti-slip grip sleeve is 10cm long and 0.5cm thick.
[0022] According to one embodiment of this utility model, the hammer handle and the hammer head body are integrally formed, enhancing the stability and durability of the geological hammer. The hammer handle and hammer head are made of high-strength carbon steel, possessing both high hardness and good toughness.
[0023] According to one embodiment of this utility model, the hammer handle is made of hollow thick-walled steel pipe, which reduces weight and improves product durability. The wall thickness of the hammer handle is 0.5cm.
[0024] According to one embodiment of the present invention, the steel chisel is made of high-strength carbon steel and has high strength, toughness, wear resistance and impact resistance.
[0025] According to one embodiment of the present invention, the chisel head has a flat structure and an enlarged design, which can disperse the impact stress and extend its service life.
[0026] As can be seen from the above technical solution, this utility model possesses at least one of the following advantages and positive effects:
[0027] The geological hammer of this invention utilizes its wedge-shaped hammerhead to better peel away rocks and split rock slabs; the steel chisels with different widths and blade thicknesses can effectively cut into the rock and split rock slabs, reducing damage to fossils; the integrated tool of steel chisels and crowbars retains the original functions while adding a cavity at the end of the crowbar, improving the product's convenience and practicality; the integrated tool of geological hammer, steel chisels, and steel chisels of this invention not only has a high degree of integration and versatility in function, but also performs excellently in terms of durability, safety, and convenience, significantly improving the efficiency and safety of fossil collection and excavation work in layered rocks in the field. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the structure of the geological hammer described in this utility model;
[0030] Figure 2 for Figure 1 Side view of a geological hammer;
[0031] Figure 3 This is a schematic diagram of the structure of the first steel chisel of this utility model;
[0032] Figure 4 for Figure 3 Side view of the first steel chisel in the middle;
[0033] Figure 5 This is a schematic diagram of the structure of the second steel chisel of this utility model;
[0034] Figure 6 for Figure 5 Side view of the second steel chisel in the middle;
[0035] Figure 7 This is a schematic diagram of the structure of the third steel chisel described in this utility model;
[0036] Figure 8 for Figure 7 Side view of the third steel chisel in the middle;
[0037] Figure 9 This is a schematic diagram of the structure of the steel rod body described in this utility model;
[0038] Figure 10 This is a schematic diagram of the structure of the crowbar rod described in this utility model;
[0039] Figure 11 This is a schematic diagram of the anti-slip hand guard described in this utility model.
[0040] The annotations in the attached figures are explained as follows:
[0041] 1-Hammer head body; 11-Round hammer head; 12-Wedge-shaped blade; 2-Hammer handle; 3-Anti-slip grip sleeve; 4-Chisel body; 41-Chisel head; 42-Steel chisel blade; 43-Anti-slip texture; 5-Steel chisel body; 51-Steel chisel tip; 52-Steel chisel connecting external thread; 6-Crowbar rod; 61-Crowbar connecting internal thread; 62-Tail cavity; 7-Anti-slip hand guard; 71-Rubber cushioning pad; 72-Expanded part. Detailed Implementation
[0042] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "inner," "outer," "upper," "lower," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein.
[0045] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0046] See the instruction manual appendix Figure 1 As shown in Figure 11, this utility model discloses a handheld excavation tool for collecting fossils in layered rocks, comprising a geological hammer, a steel chisel, and a steel crowbar integrated tool.
[0047] The geological hammer includes a hammer head body 1 and a hammer handle 2. The hammer head body 1 is located at one end of the hammer handle 2. The bottom of the hammer head body 1 is a circular hammer head 11, and the top is a wedge-shaped blade 12. The overall length of the geological hammer is 28cm, of which the hammer handle 2 is 25cm long and 3.5cm in diameter, the circular hammer head 11 is 4cm in diameter, and the wedge-shaped blade 12 is 4cm wide and 0.1cm thick. Figure 2 The central part of the hammerhead body 1 is smaller in size; the size of its top wedge-shaped blade 12 and the bottom circular hammerhead 11 are both smaller than the central part. Furthermore, an anti-slip grip sleeve 3 is fitted on the outer side of the end of the hammer handle 2 furthest from the hammerhead body 1, facilitating the operator's grip and ensuring stable and safe operation. The anti-slip grip sleeve 3 is made of thermoplastic rubber. The anti-slip grip sleeve 3 is 10cm long and 0.5cm thick. The hammer handle 2 is integrally formed with the hammerhead body 1, enhancing the stability and durability of the geological hammer. The hammer handle 2 and the circular hammerhead 11 are made of high-strength carbon steel, possessing both high hardness and good toughness. Additionally, the hammer handle 2 is made of hollow thick-walled steel tubing with a wall thickness of 0.5cm. This geological hammer, crafted from high-strength, lightweight carbon steel, is specifically designed for layered rocks. The wedge-shaped design of the hammerhead has been calculated, and the cutting edge is not only appropriately thinned to enhance the splitting effect, but also specially hardened to improve durability. This ensures that it effectively reduces damage to fossils when splitting rock slabs while maintaining long-term sharpness. In addition, the handle of the geological hammer is made of hollow, thick-walled steel tubing, which reduces the overall weight, enhances portability, and maintains sufficient strength and durability to adapt to the complex and ever-changing working environment in the field.
[0048] The steel chisel includes a chisel body 4, with a chisel head 41 at the upper end and a pointed tip at the lower end. The tip ends in a steel chisel blade 42. The outer side of the chisel body 4 near the chisel head 41 has anti-slip texture 43; this texture enhances operational stability in wet and slippery environments. The chisel head 41 has a flat structure and an enlarged design to distribute impact stress and extend its service life. The steel chisels come in three specifications: a first steel chisel, a second steel chisel, and a third steel chisel. The third steel chisel has a chisel body width of 1.5cm and a thickness of 1cm, with a chisel blade edge width of 2.5cm and a blade thickness of 0.1cm. The second steel chisel has a chisel body width of 1.5cm and a thickness of 1cm, with a chisel blade edge width of 1.5cm and a blade thickness of 0.08cm. The first steel chisel has a chisel body width of 1cm and a thickness of 0.7cm, with a chisel blade edge width of 1cm and a blade thickness of 0.05cm. The first, second, and third steel chisels are all 18cm in length. Based on their body width and thickness, as well as the chisel blade width and thickness, the first chisel is a small chisel, the second a medium chisel, and the third a large chisel. Targeting the characteristics of layered rocks, this invention designs a specialized steel chisel with a flat, blade-like edge. The edge of the chisel is finely ground to reduce accidental damage to fossils. The chisels offer three different blade thicknesses and widths, from fine to coarse, allowing users to precisely select the appropriate size based on the rock layer thickness. This not only improves work efficiency but also ensures the integrity of the fossils. Furthermore, the chisel head features an anti-slip texture, ensuring stable operation even in slippery conditions.
[0049] The integrated steel chisel and crowbar tool includes a steel chisel body 5, a crowbar handle 6, and a non-slip guard 7. The steel chisel body 5 and the crowbar handle 6 are connected by internal and external threads. The non-slip guard 7 is installed in the cavity 62 at the tail end of the crowbar handle 6. The non-slip guard 7 is a protective sleeve with a cavity, and its end is an enlarged part with a flat structure. The enlarged end of the non-slip guard 7 can disperse the impact stress and extend its service life. The top of the steel chisel body 5 is the steel chisel tip 51, and its end is the steel chisel connecting external thread 52. The top of the crowbar handle 6 has a crowbar connecting internal thread 61 that mates with the steel chisel connecting external thread 52, and the middle part of the crowbar handle 6 is a solid crowbar handle. The steel rod body 5 is 25cm long and 3cm in diameter. The drill bit 51 has a 2cm wide opening and a 0.2cm cutting edge thickness. The crowbar 6 is 150cm long and has a 3cm diameter at its tip, gradually increasing in diameter at its tail end. The tail end cavity 62 is 30cm long and has a 4cm inner diameter. The tail end cavity 62 can accommodate the steel rod body 5 or the steel chisel. The anti-slip handguard 7 is 20cm long and has a hollow receiving cavity. The length and width of its bulging end 72 are both 4cm. The anti-slip handguard 7 provides a comfortable grip and safety protection, and also serves as an end cap for the crowbar 6 cavity to prevent items from falling. Additionally, the anti-slip handguard 7 can be fitted onto the end of the steel rod body 5 as a protective sleeve, achieving dual protection. The integrated design of the steel rod body 5 and the crowbar 6 improves fieldwork efficiency, while the flexible application of the anti-slip handguard 7 increases the tool's practicality. A rubber buffer pad 71 is provided on the outer side of the anti-slip handguard 7 near the bulging part; the anti-slip handguard 7 is fitted onto the end of the steel rod body 5, and when used as a handguard for the steel rod body 5, the rubber buffer pad 71 effectively cushions impact forces, protecting the external threads at the end of the steel rod body 5 from deformation. This utility model's integrated steel rod and crowbar tool, while combining the functions of a steel rod and a crowbar, further incorporates an adjustable length design. Through a simple rotating locking mechanism, users can adjust the tool's length according to actual needs to adapt to the requirements of clearing rock strata of different depths and widths. Simultaneously, the integrated tool is equipped with a compact storage space, saving space and facilitating portability, greatly improving the flexibility and efficiency of field fossil collection and excavation work.
[0050] In addition, this utility model, a handheld excavation tool for collecting fossils in layered rocks, also includes a toolbox for storing the integrated tool consisting of a geological hammer, a steel chisel, and a steel crowbar. The geological hammer is located near the left side of the toolbox, the steel chisel is located to the right of the geological hammer, and the integrated tool is located below the geological hammer and steel chisel. In a specific implementation, a foam layer is laid at the bottom of the toolbox, and cavities adapted to the integrated tool are cut into the foam layer for easy storage. Since the toolbox and foam layer are existing equipment, they will not be described in detail here.
[0051] The geological hammer of this invention utilizes its wedge-shaped hammerhead to better peel away rocks and split rock slabs; the steel chisels with different widths and blade thicknesses can effectively cut into the rock and split rock slabs, reducing damage to fossils; the integrated tool of steel chisels and crowbars retains the original functions while adding a cavity at the end of the crowbar, improving the product's convenience and practicality; the integrated tool of geological hammer, steel chisels, and steel chisels of this invention not only has a high degree of integration and versatility in function, but also performs excellently in terms of durability, safety, and convenience, significantly improving the efficiency and safety of fossil collection and excavation work in layered rocks in the field.
[0052] It should be understood that this invention is not limited to the detailed structure and arrangement of the components presented herein. This invention can have other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this invention. It should be understood that the invention disclosed and defined herein extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. The embodiments described herein illustrate the best known mode for implementing this invention and will enable those skilled in the art to utilize this invention.
Claims
1. A hand-held collecting and excavating tool for fossils in layered rock, characterized in that It includes at least a combination of tools such as a geological hammer, steel chisel, steel crowbar, and steel bar. The geological hammer includes a hammer head body and a hammer handle. The hammer head body is located at one end of the hammer handle. The bottom of the hammer head body is a circular hammer head, and the top of the hammer head body is a wedge-shaped blade. The steel chisel includes a chisel body, with a chisel head at the upper end and a pointed end at the lower end. The end of the pointed end is a steel chisel blade. There are anti-slip textures on the outer side of the chisel body near the chisel head. The integrated steel chisel and crowbar tool includes a steel chisel body, a crowbar rod, and an anti-slip handguard. The steel chisel body and the crowbar rod are connected by internal and external threads. An anti-slip handguard is provided in the cavity at the tail end of the crowbar rod. The anti-slip handguard is a protective sleeve with a cavity, and its end is an enlarged part.
2. A hand-held collecting and excavating tool for fossils in layered rock according to claim 1, characterized in that The anti-slip hand guard can also be fitted onto the end of the steel rod body as a protective sleeve for the steel rod body.
3. A hand-held collecting and excavating tool for fossils in layered rock according to claim 2, characterized in that The top of the steel rod body is the steel rod bit, and its end is the steel rod connection external thread; the top of the crowbar has a crowbar connection internal thread that mates with the steel rod connection external thread, and the middle of the crowbar is a solid crowbar.
4. A hand-held collecting and excavating tool for fossils in layered rock according to claim 2, characterized in that A rubber buffer pad is provided on the outer side of the anti-slip hand guard near the bulging part; the anti-slip hand guard is attached to the end of the steel rod body. When used as a hand guard for the steel rod body, the rubber buffer pad can effectively buffer the impact force and protect the external thread at the end of the steel rod body from deformation.
5. A hand-held collecting and excavating tool for fossils in layered rock according to claim 1, characterized in that The hammer handle is fitted with an anti-slip grip sleeve on the outer side of the end away from the hammer head body, which makes it easy for the operator to hold and ensures stable and safe operation; The anti-slip grip sleeve is made of thermoplastic rubber material, and has a length of 10cm and a thickness of 0.5cm.
6. A hand-held collecting and excavating tool for fossils in layered rock according to claim 5, characterized in that The hammer handle and hammer head are integrally formed, enhancing the stability and durability of the geological hammer; the hammer handle and hammer head are made of high-strength carbon steel, which combines high hardness and good toughness.
7. A hand-held collecting and excavating tool for fossils in layered rock according to claim 6, characterized in that The hammer handle is made of hollow thick-walled steel pipe, which reduces weight and improves product durability; the wall thickness of the hammer handle is 0.5cm.
8. A hand-held collecting and excavating tool for fossils in layered rock according to claim 1, characterized in that The overall length of the geological hammer is 28cm; The hammer handle is 25cm long and 3.5cm in diameter, the round hammer head is 4cm in diameter, and the wedge-shaped blade is 4cm wide and 0.1cm thick.
9. A hand-held collecting and excavating tool for fossils in layered rock according to claim 1, characterized in that The steel chisels are divided into three specifications: the first steel chisel, the second steel chisel, and the third steel chisel. The third steel chisel has a body width of 1.5cm and a thickness of 1cm, and a chisel edge with a mouth width of 2.5cm and a blade thickness of 0.1cm; the second steel chisel has a body width of 1.5cm and a thickness of 1cm, and a chisel edge with a mouth width of 1.5cm and a blade thickness of 0.08cm; the first steel chisel has a body width of 1cm and a thickness of 0.7cm, and a chisel edge with a mouth width of 1cm and a blade thickness of 0.05cm. The first, second, and third steel chisels are all 18cm long. Judging from the width and thickness of the chisel body, as well as the width of the chisel edge and the thickness of the chisel edge, the first steel chisel is a small steel chisel, the second steel chisel is a medium steel chisel, and the third steel chisel is a large steel chisel. The different sizes and thicknesses of the steel chisels are suitable for rock layers of different thicknesses, which can effectively split the rock slabs and protect the fossils to the greatest extent.
10. A hand-held collecting and excavating tool for fossils in layered rock according to claim 1, characterized in that The steel rod body is 25cm long and 3cm in diameter, the drill bit has a drill mouth width of 2cm and a cutting edge thickness of 0.2cm. The crowbar is 150cm long and has a diameter of 3cm at the top. Its tail end gradually increases in diameter, and the length of the tail end cavity is 30cm, while the diameter of the inner hole of the tail end cavity is 4cm. The anti-slip hand guard is 20cm long and has a hollow receiving cavity. The length and width of the bulging part at its end are both 4cm.