Portable combined crowbar capable of being rapidly disassembled and assembled
By designing a portable, quick-assembly and disassembly combination crowbar, and utilizing threaded connections and riveting structures, the problems of inconvenience in carrying and high purchase costs of existing crowbars are solved, realizing the portability and multi-functionality of the crowbar assembly.
Patent Information
- Application Number
- CN202520001085.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing metal crowbars have problems in tunnel engineering and mining, such as being inconvenient to carry, having high purchase costs, and having a simple structure that makes them difficult to assemble.
A portable, quick-assembly and disassembly combination pry bar was designed. It consists of a bar body and a pry head, and can be quickly assembled and disassembled through connecting parts such as threaded heads with external threads, internal thread sections, internal thread sleeves, and rivet holes. The bar body is made of epoxy resin tube, the connecting head is made of seamless titanium alloy tube, and the pry head is welded from hexagonal steel or round steel, supporting combinations of various pry head types.
It achieves portability and versatility of the crowbar, and can be quickly assembled into different specifications according to needs, reducing carrying and purchase costs, and is suitable for confined environments.
Smart Images

Figure CN223659797U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of working tools, especially to a combined crowbar. BACKGROUND
[0002] In the tunnel engineering, mining and other industries, crowbar is the main tool for manual prying operation. Common crowbar is generally made of six steel, threaded steel, round steel, or purchased special metal crowbar. Although this kind of metal crowbar is solid and durable, it has the following defects: first, the length of the metal crowbar is large, which is not safe to carry in narrow and small environment, especially in the place with slide wire; second, if multiple specifications of crowbar are needed at the same operation site, such as 1.5m, 2.0m, 3.0m, etc., each kind of crowbar needs to be equipped, which is inconvenient to carry and has high purchase cost; third, the structure is too simple, which is not convenient for on-site assembly according to actual needs. SUMMARY
[0003] The utility model provides a simple structure, reasonable in design, convenient and practical, long or short, easy to assemble into different forms and specifications of portable quick disassembly and assembly combined crowbar in view of the shortcomings of prior art.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a portable quick disassembly and assembly combined crowbar, including the crowbar body and the crowbar head, the both ends of the crowbar body are provided with the connecting part, further including the first connecting head and the third connecting head that can be connected and fixed with the connecting part, and the second connecting head that can be connected with the first connecting head and the fourth connecting head that can be connected with the third connecting head, the second connecting head is connected and fixed with the crowbar body through the first connecting head, the fourth connecting head is connected and fixed with the crowbar body through the third connecting head, and the crowbar head is connected and fixed with the second connecting head or the fourth connecting head to realize the combination and fixation with the crowbar body.
[0005] Further, the connecting part is a threaded head with external thread, the first connecting head has an internal thread section matched with the threaded head, and the third connecting head is a threaded sleeve with internal thread on the inner wall, and the first connecting head and the third connecting head are respectively screwed and fixed with the threaded head of the crowbar body through the internal thread.
[0006] Further, the first connecting head has an external thread section at the other end, the second connecting head has an internal thread section matched with the external thread section, and the second connecting head is screwed and fixed with the external thread section of the first connecting head through the internal thread section.
[0007] Further, the second connecting head has a socket hole at the end connected with the crowbar head, and the crowbar head is socketed and fixed with the second connecting head.
[0008] Further, the pry head is a shovel-shaped pry head, which comprises a shovel-shaped curved portion at the front end and a socket head at the tail end, and the shovel-shaped pry head is fixed with the second connecting head through the socket head inserted into the socket hole.
[0009] Further, the fourth connecting head has a screw section matched with the third connecting head, and the fourth connecting head is fixed with the third connecting head through the screw section screwed into the third connecting head.
[0010] Further, the fourth connecting head has a socket hole inside, and the pry head is a pointed pry head, the tail end of the pointed pry head has a socket head, and the pointed pry head is fixed with the fourth connecting head through the socket head inserted into the socket hole.
[0011] Further, the riveting holes are arranged on the threaded heads at both ends of the stick body, and the riveting holes are also arranged on the first connecting head and the third connecting head, respectively, and the first connecting head and the third connecting head are riveted with the stick body through the riveting shafts inserted into the corresponding riveting holes.
[0012] As a preferred, the stick body is made of an epoxy resin pipe, each connecting head is made of a titanium alloy seamless pipe, and the pry head is made of a six-rib steel or a round steel.
[0013] As a preferred, the length of the single stick body is 80-120cm, such as 100mm.
[0014] The utility model discloses a threaded head is arranged at both ends of the stick body, and the first connecting head and the third connecting head that can be screwed with the threaded head are equipped, and the second connecting head and the fourth connecting head that can be screwed and fixed are equipped for the first connecting head and the third connecting head respectively, and the pry head at both ends is connected with the second connecting head and the fourth connecting head closely in the way of socket joint. The parts are disassembled in ordinary times, and the pry stick with complete function can be assembled quickly after entering the working place, and can be lengthened or shortened according to actual demand, which has the advantages of convenient and practical, easy to assemble and the like. DRAWINGS
[0015] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0016] Fig. 2 It is the exploded structure schematic diagram of the utility model;
[0017] Fig. 3 It is the two stick body combination state schematic diagram.
[0018] In the figure, 1 is a stick body, 11 is a threaded head, 12 is a riveting hole, 2 is a first connecting head, 21 is an inner thread section, 22 is an outer thread section, 23 is a riveting hole, 3 is a second connecting head, 31 is an inner thread section, 32 is a socket hole, 4 is a shovel-shaped prying head, 41 is a shovel-shaped curved section, 42 is a socket head, 43 is a stop portion, 5 is a third connecting head, 51 is a riveting hole, 6 is a fourth connecting head, 61 is a insertion hole, 62 is a screw section, 7 is a pointed prying head, 71 is an insertion head, and 72 is a stop portion. DETAILED DESCRIPTION
[0019] In the embodiment, referring to Figs. 1-3 , the portable quick detachable combined prying stick comprises a stick body 1 and a prying head, both ends of the stick body 1 are provided with connecting portions, further comprising a first connecting head 2 and a third connecting head 5 capable of being fixedly connected with the connecting portions, a second connecting head 3 capable of being connected with the first connecting head 2 and a fourth connecting head 6 capable of being connected with the third connecting head 5; the second connecting head 3 is fixedly connected with the stick body 1 through the first connecting head 2, the fourth connecting head 6 is fixedly connected with the stick body 1 through the third connecting head 5, and the prying head is fixedly connected with the second connecting head 3 or the fourth connecting head 6 to realize combined fixation with the stick body 1, so as to form a quick detachable structure.
[0020] The connecting portion is a threaded head 11 with an outer thread, the first connecting head 2 has an inner thread section 21 matched with the threaded head 11, and the third connecting head 5 is a threaded sleeve with an inner thread on the inner wall, and the first connecting head 2 and the third connecting head 5 are respectively screwed and fixed with the threaded head 11 of the stick body 1 through the inner thread.
[0021] The first connecting head 2 has an outer thread section 22 at the other end, the second connecting head 3 has an inner thread section 31 matched with the outer thread section 22, and the second connecting head 3 is screwed and fixed with the outer thread section 22 of the first connecting head 2 through the inner thread section 31. The third connecting head 5 can also be screwed with the outer thread section 22 of the first connecting head 2 to realize the connection of two stick bodies 1 to achieve the purpose of lengthening.
[0022] The second connecting head has a socket hole at the end abutting the prying head, and the prying head is fixedly connected with the second connecting head through the socket hole.
[0023] The prying head is a shovel-shaped prying head, which comprises a shovel-shaped curved section at the front end and a socket head at the tail end, and the shovel-shaped prying head is fixedly connected with the second connecting head by inserting the socket head into the socket hole; the tail portion of the socket head is provided with an outwardly protruding stop portion.
[0024] The fourth connecting head has a screw section matched with the third connecting head, and the fourth connecting head is screwed and fixed with the third connecting head through the screw section.
[0025] The fourth connecting head has a plug hole inside, the pry head is a pointed pry head, the tail of the pointed pry head has a plug head, the pointed pry head is fixed with the fourth connecting head by inserting the plug head into the plug hole; an outward protruding stopper is arranged at the tail of the plug head.
[0026] A riveting hole is arranged on the threaded head at both ends of the stick body, and a riveting hole is also arranged on the first connecting head and the third connecting head respectively, a rivet shaft is inserted into the corresponding riveting hole to realize riveting of the first connecting head and the third connecting head with the stick body respectively.
[0027] The stick body is made of an epoxy resin pipe, each connecting head is made of a titanium alloy seamless pipe, and the pry head is made of a six-rib steel or round steel by welding.
[0028] The length of the single stick body is 80-120 cm, for example, 100 mm.
[0029] The above has made a detailed description of the utility model, the above is only a preferred embodiment of the utility model, and cannot limit the utility model implementation range, that is, all equivalent changes and modifications made in the scope of the application should still belong to the scope of the utility model.
Claims
1. A portable quick detachable combination crowbar comprising a crowbar body and a crowbar head, characterized in that: The two ends of the stick body are provided with connecting parts, and the first connecting head and the third connecting head which can be fixedly connected with the connecting parts are further included, and the second connecting head which can be connected with the first connecting head and the fourth connecting head which can be connected with the third connecting head are further included; the second connecting head is fixedly connected with the stick body through the first connecting head, and the fourth connecting head is fixedly connected with the stick body through the third connecting head, and the crowbar is fixedly connected with the second connecting head or the fourth connecting head to realize the combined fixation with the stick body.
2. The portable quick release combination pry bar of claim 1, wherein: The connecting part is a threaded head with an external thread, the first connecting head has an internal thread section matched with the threaded head, and the third connecting head is a threaded sleeve with an internal thread on the inner wall, and the first connecting head and the third connecting head are respectively screwed and fixed with the threaded head of the stick body through the internal thread.
3. The portable quick release combination pry bar of claim 2, wherein: The other end of the first connecting head has an external thread section, the second connecting head has an internal thread section matched with the external thread section, and the second connecting head is screwed and fixed with the external thread section of the first connecting head through the internal thread section.
4. The portable quick detach combination pry bar of claim 1 or 3, wherein: The second connecting head has a socket hole at the end which is connected with the crowbar, and the crowbar is fixedly connected with the second connecting head through the socket hole.
5. The portable quick release combination pry bar of claim 4 wherein: The crowbar is a shovel-shaped crowbar which includes a shovel-shaped curved part at the front end and a socket head at the tail end, and the shovel-shaped crowbar is fixedly connected with the second connecting head by inserting the socket head into the socket hole; an outwardly protruding stop part is arranged at the tail of the socket head.
6. The portable quick disconnect combination pry bar of claim 2, wherein: The fourth connecting head has a screw section matched with the third connecting head, and the fourth connecting head is screwed and fixed with the third connecting head by screwing the screw section into the third connecting head.
7. The portable quick release combination pry bar of claim 6 wherein: The fourth connecting head has an insertion hole inside, and the crowbar is a pointed crowbar which has an insertion head at the tail, and the pointed crowbar is fixedly connected with the fourth connecting head by inserting the insertion head into the insertion hole; an outwardly protruding stop part is arranged at the tail of the insertion head.
8. The portable quick release combination pry bar of claim 2, wherein: Riveting holes are arranged on the threaded heads at the two ends of the stick body, and riveting holes are also arranged on the first connecting head and the third connecting head, and the first connecting head and the third connecting head are respectively riveted and fixed with the stick body by inserting a riveting shaft into the corresponding riveting holes.
9. The portable quick disconnect combination pry bar of claim 1, wherein: The stick body is made of an epoxy resin pipe, each connecting head is made of a titanium alloy seamless pipe, and the crowbar is made of a six-rib steel or a round steel.
10. The portable quick disconnect combination pry bar of claim 1, wherein: The length of the single stick body is 80-120 cm.