Fixing structure for flange bolt cutting saw

Abstract

The utility model provides a fixing structure for a flange bolt cutting saw. The fixing structure comprises a clamping bandage, two mounting structures, two jacking mechanisms, a first anti-skid structure and a plurality of second anti-skid structures, the head end and the tail end of the clamping bandage are each correspondingly provided with an installation structure, and the installation structures are used for being connected with a flange cutting saw shell. A first anti-skid structure is arranged in the middle of the inner side of the clamping bandage and fixedly connected with the clamping bandage. According to the fixing structure for the flange bolt cutting saw, the problem that in the prior art, due to the fact that the clamping force of a fixing structure on a flange is insufficient, sliding is prone to occurring in the cutting process is solved.

Description

Technical Field

[0001] This utility model belongs to the field of cutting technology, and in particular relates to a fixing structure for a flange bolt cutting saw. Background Technology

[0002] A flange bolt cutting saw is a specialized tool for quickly cutting rusted, deformed, or difficult-to-remove bolts in flange connections, commonly used in petrochemical, offshore oil and gas emergency rescue, and other fields. Its core function is to efficiently cut bolts using a high-powered saw blade (usually hydraulically or electrically driven), making it suitable for confined spaces or emergency repair scenarios. The equipment is typically equipped with a fixing structure to ensure cutting stability and accuracy; however, in actual use, defects in the fixing structure can affect safety and efficiency. Due to insufficient clamping force on the flange in related technologies, slippage can easily occur during the cutting process, affecting accuracy and even causing the saw blade to break. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A fixing structure for a flange bolt cutting saw includes a clamping strap, two mounting structures, two tightening mechanisms, a first anti-slip structure, and multiple second anti-slip structures.

[0006] Each end of the clamping strap is provided with a corresponding mounting structure, which is used to connect to the flange cutting saw housing.

[0007] The first anti-slip structure is provided in the middle of the inner side of the clamping strap, and the first anti-slip structure is fixedly connected to the clamping strap.

[0008] Multiple second anti-slip structures are symmetrically arranged on both sides of the first anti-slip structure, and the second anti-slip structures are fixedly connected to the inner side of the clamping strap.

[0009] Two tightening mechanisms are symmetrically arranged inside the clamping strap, and the tightening mechanisms are used to tension the clamping strap.

[0010] Furthermore, the tensioning mechanism includes a top plate, a pressure plate, and two tensioning assemblies. The top plate is used to tension the inner side of the tensioning strap, and the pressure plate is used to tension the side end face of the column flange. The two tensioning assemblies are symmetrically arranged on the top plate, and the tensioning end of the tensioning assembly presses against the pressure plate.

[0011] Furthermore, it also includes two guide structures, which are symmetrically arranged between the top plate and the pressure plate. Each guide structure includes a guide plate and a slide rod. The end of the guide plate is fixedly connected to the inner end face of the top plate, and the end of the slide rod is fixedly connected to the outer end face of the pressure plate. The guide plate and the slide rod are in sliding engagement.

[0012] Furthermore, the tensioning assembly includes a tightening screw, a pressure block, a handwheel, and a fixing nut. The tightening screw is threaded into the top plate. The pressure block is provided at the inner end of the tightening screw, and the handwheel is provided at the outer end of the tightening screw. The fixing nut is provided on the tightening screw, located on the inner side of the top plate, and the handwheel is located on the outer side of the top plate.

[0013] Furthermore, the first anti-slip structure includes an anti-slip pad and a plurality of anti-slip grooves. The anti-slip pad is bonded to the inner side of the clamping strap, and the plurality of anti-slip grooves are arranged on the inner end face of the anti-slip pad.

[0014] Furthermore, the second anti-slip structure includes an anti-slip block, one side of which is bonded to the clamping strap via a connecting block, and the other side of which is provided with multiple anti-slip protrusions.

[0015] Furthermore, the mounting structure includes a fixing plate and a connecting rod. The fixing plate has a C-shaped structure and is connected to the end of the clamping strap via the connecting rod. The fixing plate is also connected to the flange cutting saw housing via screws.

[0016] Compared with the prior art, the fixing structure for a flange bolt cutting saw described in this utility model has the following advantages:

[0017] 1. The tightening screw is driven by rotating the handwheel, which pushes the pressure block, which then transmits the force to the pressure plate. The pressure plate finally presses against the side end face of the flange, thus achieving strong tension on the clamping strap. The operator can easily and precisely control the applied tension force by rotating the handwheel. Symmetrical force application on both sides ensures stable and uniform clamping: Two tightening mechanisms are symmetrically arranged on both sides of the inner side of the clamping strap. When both handwheels are operated simultaneously (or alternately operated to balance the pressure on both sides), the clamping force is evenly applied to both sides of the strap, ensuring that the entire device (including the anti-slip structure) can be firmly, stably, and symmetrically fitted to the flange circumference, preventing shaking or slippage caused by uneven force during sawing.

[0018] 2. The toothed groove structure of the first anti-slip structure can produce a ratchet or wedge-shaped effect, which greatly resists the vibration generated during the operation of the cutting saw and prevents the fixing device from sliding or rotating relative to the flange.

[0019] 3. The multiple anti-slip protrusions of the second anti-slip structure form point contacts with the flange surface. Under the same tension, point contact can generate higher local pressure than surface contact. The protrusions can embed into tiny unevennesses on the flange surface (such as a slight oxide layer or texture), providing more reliable mechanical resistance than a smooth surface. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of a fixing structure for a flange bolt cutting saw according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure described in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the clamping mechanism structure described in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the second anti-slip structure described in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the first anti-slip structure described in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Clamping strap; 200. Mounting structure; 210. Fixing plate; 220. Connecting rod; 300. Tightening mechanism; 310. Pressure plate; 320. Top plate; 330. Tensioning assembly; 340. Guide structure; 400. First anti-slip structure; 500. Second anti-slip structure. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] A fixing structure for a flange bolt cutting saw, such as Figure 1 As shown, it includes a clamping strap 100, two mounting structures 200, two clamping mechanisms 300, a first anti-slip structure 400, and multiple second anti-slip structures 500; each end of the clamping strap 100 is provided with a mounting structure 200, which is used to connect to the flange cutting saw housing; as Figure 2 As shown, the mounting structure 200 includes a fixing plate 210 and a connecting rod 220. The fixing plate 210 has a C-shaped structure. The fixing plate 210 is connected to the end of the clamping strap 100 through the connecting rod 220. The fixing plate 210 is connected to the flange cutting saw housing by screws.

[0033] A first anti-slip structure 400 is provided in the middle of the inner side of the clamping strap 100, and the first anti-slip structure 400 is fixedly connected to the clamping strap 100. The first anti-slip structure 400 includes an anti-slip pad and multiple anti-slip grooves. The anti-slip pad is glued to the inner side of the clamping strap 100, and the multiple anti-slip grooves are arranged on the inner end face of the anti-slip pad. The groove structure of the first anti-slip structure 400 can produce a ratchet or wedge-like effect, which greatly resists the vibration generated during the operation of the cutting saw and prevents the fixing device from sliding or rotating relative to the flange.

[0034] Multiple second anti-slip structures 500 are symmetrically arranged on both sides of the first anti-slip structure 400. Each second anti-slip structure 500 is fixedly connected to the inner side of the clamping strap 100. Each second anti-slip structure 500 includes an anti-slip block; one side of the anti-slip block is glued to the clamping strap 100 via a connecting block, and the other side of the anti-slip block has multiple anti-slip protrusions. The multiple anti-slip protrusions of the second anti-slip structure 500 form point contact with the flange surface. Under the same tension, point contact can generate higher local pressure than surface contact. The protrusions can embed into minute unevenness areas (such as a slight oxide layer or texture) on the flange surface, providing more reliable mechanical resistance than a smooth surface.

[0035] Two tensioning mechanisms 300 are symmetrically arranged inside the clamping strap 100. The tensioning mechanisms 300 are used to tension the clamping strap 100. The tensioning mechanism 300 includes a top plate 320, a pressure plate 310, and two tensioning components 330. The top plate 320 is used to tension the inner side of the tensioning strap, and the pressure plate 310 is used to tension the side end face of the top flange. The two tensioning components 330 are symmetrically arranged on the top plate 320, and the tensioning end of the tensioning component 330 abuts against the pressure plate 310. In this example, the tensioning component 330 includes a tensioning screw, a pressure block, a handwheel, and a fixing nut. The tensioning screw is threaded into the top plate 320. A pressure block is provided at the inner end of the tensioning screw, and a handwheel is provided at the outer end of the tensioning screw. The fixing nut is provided on the tensioning screw and is located inside the top plate 320. The handwheel is located outside the top plate 320. The tightening screw is driven by rotating the handwheel, which pushes the pressure block, which then transmits the force to the pressure plate 310. The pressure plate 310 finally presses against the side end face of the flange, thus achieving strong tension on the clamping strap 100. The operator can easily and precisely control the applied tension force by rotating the handwheel. Symmetrical force application on both sides ensures stable and uniform clamping: two tightening mechanisms 300 are symmetrically arranged on both sides of the inner side of the clamping strap 100. When both handwheels are operated simultaneously (or alternately operated to balance the pressure on both sides), the clamping force is evenly applied to both sides of the strap, ensuring that the entire device (including the anti-slip structure) can be firmly, stably, and symmetrically fitted to the flange circumference, preventing shaking or slippage caused by uneven force during sawing.

[0036] It also includes two guide structures 340, which are symmetrically arranged between the top plate 320 and the pressure plate 310. Each guide structure 340 includes a guide plate and a slide rod. The end of the guide plate is fixedly connected to the inner end face of the top plate 320, and the end of the slide rod is fixedly connected to the outer end face of the pressure plate 310. The guide plate and the slide rod are in sliding engagement.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixture for a flange bolt cutting saw, characterized by: It includes a clamping strap (100), two mounting structures (200), two clamping mechanisms (300), a first anti-slip structure (400), and multiple second anti-slip structures (500); The clamping strap (100) is provided with a mounting structure (200) at both ends, and the mounting structure (200) is used to connect the flange cutting saw housing. The first anti-slip structure (400) is provided in the middle of the inner side of the clamping strap (100), and the first anti-slip structure (400) is fixedly connected to the clamping strap (100); Multiple second anti-slip structures (500) are symmetrically arranged on both sides of the first anti-slip structure (400), and the second anti-slip structures (500) are fixedly connected to the inner side of the clamping strap (100); Two tightening mechanisms (300) are symmetrically arranged inside the clamping strap (100), and the tightening mechanisms (300) are used to tension the clamping strap (100).

2. The fixing structure for a flange bolt cutting saw according to claim 1, characterized in that: The tensioning mechanism (300) includes a top plate (320), a pressure plate (310), and two tensioning assemblies (330). The top plate (320) is used to tension the inner side of the tensioning strap, and the pressure plate (310) is used to tension the side end face of the top flange. The two tensioning assemblies (330) are symmetrically arranged on the top plate (320), and the tensioning end of the tensioning assembly (330) abuts against the pressure plate (310).

3. The fixing structure for a flange bolt cutting saw according to claim 2, characterized in that: It also includes two guide structures (340), which are symmetrically arranged between the top plate (320) and the pressure plate (310). Each guide structure (340) includes a guide plate and a slide rod. The end of the guide plate is fixedly connected to the inner end face of the top plate (320), and the end of the slide rod is fixedly connected to the outer end face of the pressure plate (310). The guide plate and the slide rod are in sliding cooperation.

4. A fixing structure for a flange bolt cutting saw according to claim 2, characterized in that: The tensioning assembly (330) includes a tensioning screw, a pressure block, a handwheel, and a fixing nut. The tensioning screw is threaded into the top plate (320). The pressure block is provided at the inner end of the tensioning screw, and the handwheel is provided at the outer end of the tensioning screw. The fixing nut is provided on the tensioning screw and is located inside the top plate (320). The handwheel is located outside the top plate (320).

5. A fixing structure for a flange bolt cutting saw according to any one of claims 1-4, characterized in that: The first anti-slip structure (400) includes an anti-slip pad and a plurality of anti-slip grooves. The anti-slip pad is bonded to the inner side of the clamping strap (100), and the plurality of anti-slip grooves are arranged on the inner end face of the anti-slip pad.

6. A fixing structure for a flange bolt cutting saw according to claim 5, characterized in that: The second anti-slip structure (500) includes an anti-slip block, one side of which is bonded to the clamping strap (100) via a connecting block, and the other side of which is provided with multiple anti-slip protrusions.

7. A fixing structure for a flange bolt cutting saw according to claim 5, characterized in that: The mounting structure (200) includes a fixing plate (210) and a connecting rod (220). The fixing plate (210) has a C-shaped structure. The fixing plate (210) is connected to the end of the clamping strap (100) through the connecting rod (220). The fixing plate (210) is connected to the flange cutting saw housing by screws.

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