Crowbar with extensible reinforced structure

Abstract

The utility model relates to a crowbar with an extensible reinforced structure, which belongs to the technical field of crowbars and comprises at least one section of crowbar rod, two adjacent crowbar rods are directly connected, two ends of each crowbar rod are respectively provided with an inner threaded hole, a connector is arranged between the two adjacent crowbar rods, and the inner threaded holes are communicated with the connectors. The connecting joint adopts a threaded joint or a quick-change structure joint to lengthen and fix the crowbar rod; or the indirect structure extends, and at least one section of extension rod is arranged at the rear end of the crowbar rod. The crowbar rod is of a hollow pipe structure, a plurality of reinforcing ribs which are annularly and vertically distributed are arranged on the inner wall or the outer circle of the crowbar rod, and a crowbar head is arranged at the front end of the crowbar rod. The device has the characteristics of simple structure, convenience in use and good connection stability. The scalability of the crowbar structure is achieved, and when the space is limited and needs to be shortened, a single-section structure is adopted. When the force lever needs to be used, a multi-section structure is adopted for extension, and meanwhile the connection strength of the lengthened crowbar is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pry bar technical field, concretely relates to a pry bar of extendable reinforced structure. BACKGROUND

[0002] Pry bar is the method for using lever principle to let heavy object overcome gravity, and the heavy object is lifted from the ground and displaced, and in the work such as building site, machinery maintenance, metal structure manufacturing and cargo handling, pry bar is the more common hand tool. In daily use, the pry bar needs to be replaced, but the replacement pry head adopts the plug-in structure and is easy to slip or fall off in the use process.

[0003] In the daily use process, when heavy objects or structures with high connection strength are encountered, the length of the pry bar needs to be lengthened by adding a sleeve, and the lengthening connection is low in strength, which is inconvenient for operators to use. SUMMARY

[0004] The utility model mainly solves the deficiency existing in the prior art, provides a pry bar of extendable reinforced structure, which has the characteristics of simple structure, convenient use and good connection stability. The telescopic property of the pry bar structure is realized, and when the space is limited and needs to be shortened, a single section structure is adopted. When the power lever is needed, a multi-section structure is adopted for extension, and the connection strength of the lengthened pry bar is ensured. Through the simplified structure setting mode, the pry bar can be adjusted according to the needs of the user, and the practicability of the pry bar is effectively improved.

[0005] The above technical problems of the utility model are mainly solved through the following technical scheme:

[0006] A pry bar of extendable reinforced structure, comprising at least one pry bar rod, two adjacent pry bar rods are extended through direct or indirect structures, the pry bar rod is a hollow pipe structure, a plurality of reinforcing ribs are arranged on the inner wall or outer circle of the pry bar rod in a vertical ring shape, and a pry head is arranged at the front end of the pry bar rod.

[0007] The pry bar rod adopts a hollow pipe structure, which can reduce the weight and fatigue of the operator during operation, and can save labor for the operator.

[0008] Preferably, the two ends of the pry bar rod are provided with internal thread holes, the two adjacent pry bar rods are provided with a connecting joint, the connecting joint adopts a threaded joint or a quick-change structure joint to lengthen and fix the pry bar rod, and the rear end of the pry bar rod is provided with at least one extension rod.

[0009] Preferably, the pry head comprises a pry head connecting block, and a nail lifting flat head integrated with the pry head connecting block is arranged at the front end of the pry head connecting block.

[0010] As preferred, the outer thread joint is provided with a plurality of sealing rings which are fitted into the outer thread joint.

[0011] As preferred, the outer thread joint is provided with a plurality of sealing rings which are fitted into the outer thread joint.

[0012] As preferred, the prying head connecting block is in a straight rod structure, an acute angle structure or a right angle structure.

[0013] As preferred, the prying rod is provided with a positioning and locking assembly between the prying rod and the prying head.

[0014] As preferred, the positioning and locking assembly comprises a sliding groove, the sliding groove is provided with a locking piece, the locking piece is provided with a waist round groove, and the locking piece is provided with a screw which is screwed into the waist round groove and fixed to the prying rod.

[0015] As preferred, the prying head is in a round head structure, a flat head structure, a pointed head structure, a structure with a blade or a structure without a blade.

[0016] The prying bar of the present application can achieve the following effects:

[0017] The prying bar of the present application can achieve the following effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic view of indirect extension connection of the present application.

[0019] Figure 2 is a structure schematic view of indirect extension connection of the present application.

[0020] Figure 3 is a structure sectional view of the prying rod in the present application.

[0021] Figure 4 is a structure sectional view of the prying rod in the present application.

[0022] Figure 5 is a structure schematic view of the threaded joint in the present application.

[0023] Figure 6 This is a structural schematic diagram of the positioning and locking component in this utility model.

[0024] Figure 7 This is a schematic diagram of the straight rod structure of the nail-lifting pry head in this utility model.

[0025] Figure 8 This is a schematic diagram of the acute-angled nail-picking pry head structure in this utility model.

[0026] Figure 9 This is a front view structural diagram of the nail-removing pry head in this utility model.

[0027] Figure 10 This is a schematic diagram of the crowbar rod in this utility model.

[0028] Figure 11 This is a schematic diagram of the external threaded connector with a sealing ring in this utility model.

[0029] In the diagram: 1. Pry bar head, 2. Positioning and locking assembly, 3. Pry bar rod, 4. Connecting joint, 5. Extension rod, 6. Internal threaded hole, 7. External threaded joint, 8. Locking plate, 9. Oval groove, 10. Screw, 11. Slide groove, 12. Pry bar flat head, 13. Pry bar connecting block, 14. Reinforcing rib, 15. Sealing ring. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0031] Example: Figures 1-11 As shown, a pry bar with an extendable and reinforced structure includes two or more pry bar rods 3. Two adjacent pry bar rods 3 are directly connected. Both ends of the pry bar rods 3 have internal threaded holes 6. A connecting joint 4 is provided between two adjacent pry bar rods 3. The connecting joint 4 uses a threaded joint or a quick-change joint to extend and fix the pry bar rod 3; or it extends indirectly. The rear end of the pry bar rod 3 has at least one extension rod 5. The pry bar rod 3 has a hollow tube structure. 22 vertically distributed reinforcing ribs 14 are provided on the inner wall or outer circumference of the pry bar rod 3. The front end of the pry bar rod 3 has a pry bar head 1. The pry bar head 1 can be round, flat, pointed, with a blade, or without a blade. A positioning and locking assembly 2 is provided between the pry bar rod 3 and the pry bar head 1. The positioning and locking assembly 2 includes a slide groove 11, a locking plate 8 on the slide groove 11, an oblong groove 9 on the locking plate 8, and a screw 10 on the locking plate 8 that is threadedly connected and fixed to the pry bar 3 through the oblong groove 9.

[0032] The pry bar head 1 comprises a pry head connecting block 13, and a nail head flattening head 12 is arranged at the front end of the pry head connecting block 13 and is integrated with the pry head connecting block 13. The nail head flattening head 12 is in a straight rod structure, an acute angle structure or a right angle structure with the pry head connecting block 13. The pry head connecting block 13 is provided with an external thread joint 7 which is fixedly sleeved with the internal thread hole 6 at the joint 4 between the pry bar rod 3 and the connecting joint 4, and at one end of the extension rod 5. The other end of the extension rod 5 is provided with an internal thread hole 6. The front and rear ends of the external thread joint 7 are provided with a plurality of sealing rings 15 which are clamped and nested with the external thread joint 7.

[0033] In summary, the pry bar with the extendable reinforcing structure has the characteristics of simple structure, convenient use and good connection stability. The telescopic structure of the pry bar is realized. When the space is limited and needs to be shortened, the single-section structure is adopted. When the force lever needs to be used, the multi-section structure is adopted for extension, and the connection strength of the pry bar after lengthening is ensured. Through the simplified structure setting mode, the pry bar can be adjusted according to the needs of the user, and the practicability of the pry bar is effectively improved.

[0034] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In summary, the above-mentioned is only a specific embodiment of the utility model, but the structural characteristics of the utility model are not limited to this, and any changes or modifications made by those skilled in the art within the field of the utility model are covered by the patent scope of the utility model.

Claims

1. A crowbar with an extendable and reinforced structure, characterized in that: It includes at least one pry bar (3), and two adjacent pry bars (3) are extended by a direct or indirect structure. The pry bar (3) is a hollow tube structure. The inner wall or outer circle of the pry bar (3) is provided with several reinforcing ribs (14) arranged in a ring vertical distribution. The front end of the pry bar (3) is provided with a pry bar head (1).

2. The extendable reinforced crowbar according to claim 1, characterized in that: Both ends of the pry bar (3) are provided with internal threaded holes (6), and a connecting joint (4) is provided between two adjacent pry bars (3). The connecting joint (4) uses a threaded joint or a quick-change structure joint to lengthen and fix the pry bar (3). The rear end of the pry bar (3) is provided with at least one extension rod (5).

3. The extendable reinforced crowbar according to claim 2, characterized in that: The pry bar head (1) includes a pry bar connecting block (13), and the front end of the pry bar connecting block (13) is provided with a nail-pulling flat head (12) that is integrated with the pry bar connecting block (13).

4. The extendable reinforced crowbar according to claim 3, characterized in that: The pry bar connecting block (13) and the pry bar rod (3), the two ends of the connecting joint (4), and one end of the extension rod (5) are provided with an external threaded joint (7) that is threadedly connected and fixed to the internal threaded hole (6), and the other end of the extension rod (5) is provided with an internal threaded hole (6).

5. The extendable reinforced crowbar according to claim 4, characterized in that: The external threaded connector (7) is provided with several sealing rings (15) at both the front and rear ends, which are fitted together with the external threaded connector (7).

6. The extendable reinforced crowbar according to claim 3, characterized in that: The nail-pulling flat head (12) and the pry head connecting block (13) are in the form of a straight rod structure, an acute angle structure or a right angle structure.

7. The extendable reinforced crowbar according to claim 1, characterized in that: A positioning and locking assembly (2) is provided between the pry bar (3) and the pry bar head (1).

8. A crowbar with an extendable and reinforced structure according to claim 7, characterized in that: The positioning and locking assembly (2) includes a slide groove (11), a locking plate (8) is provided on the slide groove (11), a slotted groove (9) is provided on the locking plate (8), and a screw (10) is provided on the locking plate (8) to be threadedly connected and fixed to the pry bar (3) through the slotted groove (9).

9. A crowbar with an extendable and reinforced structure according to claim 1, characterized in that: The pry bar head (1) can be a round head structure, a flat head structure, a pointed head structure, a bladed structure, or a bladeless structure.

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