Expansion bolt cutting equipment

Abstract

The utility model discloses expansion bolt cutting equipment, which relates to the field of expansion bolt processing equipment and comprises an expanding shaft, an adjusting groove is arranged on one side of the expanding shaft, a distance rod is slidably connected in the adjusting groove, the other end of the distance rod is slidably connected with a guide column frame, and one end of the guide column frame is in threaded connection with an adjusting screw rod. The other end of the adjusting screw rod is rotationally connected with an extrusion plate which can be in sliding fit with the guide column frame, and alloy shearing blade plates are arranged on one side of the extrusion plate and one side of the guide column frame. According to the expansion bolt cutting-off equipment, through cooperation of the expanding shaft, the distance fixing rod, the guide column frame, the adjusting screw rod, the extrusion plate, the alloy shearing blade plate and other structures, an expansion sleeve of an expansion bolt can be conveniently and rapidly cut off, and the problem that beveling is inconvenient due to the fact that a special cutting-off tool is lacked in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion bolt processing equipment, specifically an expansion bolt cutting device. Background Technology

[0002] In electrical installation work, experienced electricians often have their own unique techniques for using expansion bolts, with deliberately sawing the expansion sleeve at an angle being a typical example. This operation, seemingly simple, actually embodies a deep understanding of mechanical principles and actual working conditions, and hides the key logic for improving installation stability.

[0003] First, the beveled cut enhances the efficiency of releasing expansion force. Ordinary expansion bolt sleeves typically have a longitudinal straight-slit design. When tightening the bolt, the sleeve expands evenly along the straight seam. However, this expansion method is easily affected by the precision of the installation hole. If the drilled hole diameter is slightly large, the straight-slit expansion may result in "partial tightness and overall loosening." The beveled cut, on the other hand, causes the sleeve to expand in a "spiral" manner under force. The metal plates on both sides of the cut can embed into the wall at different depths like claws. Even if there are slight deviations in the hole wall, the multi-angle engagement can compensate for gaps, significantly improving friction.

[0004] Secondly, the beveled cut can adapt to complex wall environments. In actual construction, wall materials are often uneven, and there may be brick joints, gravel particles, or hollow areas. When straight-joint sleeves encounter such situations, they are prone to unilateral expansion failure due to uneven stress; while the beveled cut allows the sleeve to "find its position" more flexibly during expansion. The metal piece at the cut will preferentially tilt and embed itself towards the solid side of the wall, avoiding weak areas through self-adjustment. Especially when installing heavy equipment such as distribution boxes and cable trays, this self-adaptive ability can greatly reduce the risk of loosening later.

[0005] In addition, beveling reduces the risk of sleeve breakage. Traditional straight-seam sleeves are prone to cracking at the straight-seam edge due to stress concentration under repeated stress or vibration (such as electrical equipment near motors). Beveled cuts disperse stress along a longer cutting line, and combined with the ductility of the metal itself, they can buffer external impacts like a spring. This is also a "safety operation" for experienced electricians working in vibrating environments.

[0006] However, there is no specific cutting tool available when cutting the expansion sleeve of the expansion bolt, making it inconvenient to cut the expansion sleeve at an angle.

[0007] Therefore, there is a need to provide an expansion bolt cutting device. Utility Model Content

[0008] In view of the shortcomings of the prior art, this utility model provides an expansion bolt cutting device to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an expansion bolt cutting device, comprising an expansion shaft, an adjustment groove on one side of the expansion shaft, a fixed-distance rod slidably connected in the adjustment groove, a guide column frame slidably connected to the other end of the fixed-distance rod, an adjustment screw threadedly connected to one end of the guide column frame, and an extrusion plate rotatably connected to the other end of the adjustment screw, which can slide and cooperate with the guide column frame. Both the extrusion plate and one side of the guide column frame are provided with alloy shearing blades.

[0010] Preferably, the expansion shaft is a variable diameter shaft structure and has multiple shearing oblique ring grooves that can fit with the alloy shearing blade.

[0011] Preferably, the spacer rod is externally slidably connected to an elastic element, and a plug plate is fixedly connected to one side of the elastic element. The plug plate is inserted into the positioning groove on one side of the adjustment groove.

[0012] Preferably, one end of the adjusting screw has a through hole, and an arm is inserted into the through hole.

[0013] Preferably, a reinforcing corner plate is fixedly connected to one side of the extrusion plate.

[0014] Preferably, the alloy shearing blade has multiple threaded holes on one side, and the threaded holes are threadedly connected to the extrusion plate and the guide column frame by bolts.

[0015] This utility model provides an expansion bolt cutting device. Compared with the prior art, it has the following advantages:

[0016] 1. This expansion bolt cutting equipment, through the coordinated operation of structures such as the expansion shaft, the spacer rod, the guide column frame, the adjusting screw, the extrusion plate, and the alloy shearing blade, can conveniently and quickly cut the expansion sleeve of the expansion bolt, solving the problem of inconvenient oblique cutting caused by the lack of special cutting tools in the existing technology.

[0017] 2. This expansion bolt cutting equipment, through the tight cooperation between its various components, can adapt to the cutting needs of expansion bolt sleeves of different specifications, and has high versatility and practicality. At the same time, by incorporating elastic elements and reinforcing angle plates, the stability and durability of the equipment are improved, extending its service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model from the left side;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model on the right side;

[0020] Figure 3This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the spacer rod structure of this utility model.

[0022] In the diagram: 1. Expansion shaft; 2. Spacer rod; 3. Guide column frame; 4. Adjusting screw; 5. Extrusion plate; 6. Alloy shear blade; 7. Adjustment groove; 21. Elastic element; 22. Insert plate; 41. Arm; 51. Reinforcing angle plate; 71. Positioning groove. Detailed Implementation

[0023] 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, other embodiments obtained by those of ordinary skill in the art without creative effort are all within the scope of protection of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: an expansion bolt cutting device, including an expansion shaft 1, an adjustment groove 7 on one side of the expansion shaft 1, a fixed rod 2 slidably connected in the adjustment groove 7, a guide column frame 3 slidably connected to the other end of the fixed rod 2, an adjustment screw 4 threadedly connected to one end of the guide column frame 3, and an extrusion plate 5 rotatably connected to the other end of the adjustment screw 4, which can slide with the guide column frame 3. Both the extrusion plate 5 and the guide column frame 3 are provided with alloy shearing blades 6 on one side, and a reinforcing angle plate 51 is fixedly connected to one side of the extrusion plate 5.

[0025] At this point, it is worth noting that the expansion shaft 1 provides basic support, and the cutting distance is adjusted by the sliding cooperation between the adjusting groove 7 and the spacer rod 2; the guide column frame 3 provides guidance for the movement of the component, and the adjusting screw 4 can drive the extrusion plate 5 to slide relative to the guide column frame 3, so that the extrusion plate 5 and the alloy shearing blade 6 on one side of the guide column frame 3 form a shearing action to complete the cutting operation of the expansion bolt; the reinforcing angle plate 51 enhances the structural stability of the extrusion plate 5.

[0026] like Figure 1 and Figure 2 The expansion shaft 1 is a variable diameter shaft structure, and has multiple shearing oblique ring grooves that can fit with the alloy shearing blade 6.

[0027] At this point, it is worth noting that the variable diameter shaft structure can adapt to expansion bolt sleeves of different specifications, and the shearing oblique ring groove can cooperate with the alloy shearing blade 6 to play a guiding and auxiliary role in the cutting process, making the cutting more precise and efficient.

[0028] like Figure 4 and Figure 1The spacer rod 2 is externally slidably connected to an elastic element 21. An insertion plate 22 is fixedly connected to one side of the elastic element 21. The insertion plate 22 is inserted into the positioning groove 71 on one side of the adjustment groove 7.

[0029] At this point, it is worth noting that the elastic element 21 on the outside of the spacer rod 2 can provide a certain buffering effect to prevent damage to the equipment due to excessive impact force during subsequent operations. Meanwhile, the plug-in plate 22 fixed to one side of the elastic element 21 can be plugged into the positioning groove 71 on one side of the adjustment groove 7 according to actual needs. When it is necessary to fix the position of the spacer rod 2 within the adjustment groove 7, the plug-in plate 22 is inserted into the corresponding positioning groove 71 to ensure stability during the cutting operation.

[0030] like Figure 3 One end of the adjusting screw 4 has a through hole, and an arm 41 is inserted into the through hole.

[0031] At this point, it is worth noting that the user rotates the arm 41, causing the adjusting screw 4 to rotate. Since the adjusting screw 4 is threadedly connected to the guide column frame 3, the rotation of the adjusting screw 4 causes it to move back and forth within the guide column frame 3. The extrusion plate 5, rotatably connected to the other end of the adjusting screw 4, slides within the guide column frame 3 as the adjusting screw 4 moves. In this way, the distance between the extrusion plate 5 and the guide column frame 3 can be adjusted to accommodate the shearing of expansion bolt sleeves of different sizes.

[0032] like Figure 3 and Figure 1 The alloy shearing blade 6 has multiple threaded holes on one side, which are threaded to the extrusion plate 5 and the guide column frame 3 via bolts.

[0033] At this point, it is worth noting that the alloy shear blade 6 is threadedly connected to the extrusion plate 5 and the guide column frame 3 by bolts, which facilitates the installation and disassembly of the alloy shear blade 6. When the alloy shear blade 6 is worn, it can be replaced in time, reducing equipment maintenance costs.

[0034] During operation or use, place the expansion bolt sleeve to be cut at the appropriate variable diameter shaft position of the expansion shaft 1, so that the sleeve is positioned between the two alloy shear blades 6. Then, by sliding the position of the spacer rod 2 in the adjustment groove 7 and adjusting the position of the guide column frame 3 on the spacer rod 2, align the alloy shear blades 6 with the position where the sleeve needs to be cut.

[0035] Next, the user holds the arm 41 and rotates the adjusting screw 4 clockwise, causing the extrusion plate 5 to move towards the guide column frame 3, thereby driving the two alloy shear blades 6 to gradually approach the sleeve. As the alloy shear blades 6 approach, they apply extrusion pressure to the sleeve. When the extrusion pressure reaches a certain level, the alloy shear blades 6 begin to cut the sleeve. During the cutting process, because the expansion shaft 1 has a shearing oblique annular groove that matches the alloy shear blades 6, it can guide the alloy shear blades 6, making the cutting more precise and smooth.

[0036] After cutting, turn the adjusting screw 4 counterclockwise to move the extrusion plate 5 away from the guide column frame 3, separating the two alloy shear blades 6. Remove the cut expansion bolt sleeve, clean the equipment, and it is ready for the next cutting operation.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An expansion bolt cutting device, characterized in that, include: An expansion shaft (1) is provided on one side, an adjustment groove (7) is provided on one side, a fixed distance rod (2) is slidably connected in the adjustment groove (7), a guide column frame (3) is slidably connected at the other end of the fixed distance rod (2), an adjustment screw (4) is threadedly connected at one end of the guide column frame (3), and an extrusion plate (5) that can slide with the guide column frame (3) is rotatably connected at the other end of the adjustment screw (4). An alloy shearing blade (6) is provided on one side of both the extrusion plate (5) and the guide column frame (3).

2. The expansion bolt cutting device according to claim 1, characterized in that: The expansion shaft (1) is a variable diameter shaft structure and has multiple shearing oblique ring grooves that can fit with the alloy shearing blade (6).

3. The expansion bolt cutting device according to claim 1, characterized in that: The spacer rod (2) is externally slidably connected to an elastic element (21), and a plug plate (22) is fixedly connected to one side of the elastic element (21). The plug plate (22) is plugged into the positioning groove (71) on one side of the adjustment groove (7).

4. The expansion bolt cutting device according to claim 1, characterized in that: One end of the adjusting screw (4) has a through hole, and an arm (41) is inserted into the through hole.

5. The expansion bolt cutting device according to claim 1, characterized in that: A reinforcing angle plate (51) is fixedly connected to one side of the extrusion plate (5).

6. The expansion bolt cutting device according to claim 1, characterized in that: The alloy shear blade (6) has multiple threaded holes on one side, and the threaded holes are threadedly connected to the extrusion plate (5) and the guide column frame (3) by bolts.

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