Flange dismounting device

Abstract

The utility model relates to the technical field of petroleum and natural gas maintenance equipment, in particular to a flange dismounting device. The flange dismounting device comprises a main body and a cutting knife. A through hole is formed in the main body and penetrates through the main body in the first direction, a containing groove is formed in the inner wall, defining the through hole, of the main body, the containing groove is used for containing two flanges connected through a bolt, the containing groove is provided with a first side wall and a second side wall which are opposite, and the first side wall is provided with a first clamping groove used for clamping a nut; the second side wall is provided with a second clamping groove used for clamping the head of the bolt. A cutting groove is formed in the bottom wall of the containing groove, communicates with the containing groove and surrounds the containing groove. The cutting knife is arranged in the containing groove, part of the cutting knife extends into the containing groove, and the cutting knife is configured to cut the bolt from the middle of the two flanges. The nut is clamped by the first clamping groove, the head of the bolt is clamped by the second clamping groove, the flange dismounting device can fix the bolt, and the bolt cutting efficiency of the cutting knife is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum and natural gas maintenance equipment technical field, in particular to a flange dismounting device. BACKGROUND

[0002] In the exploitation process of petroleum and natural gas and other energy, the gas valve is the key equipment of controlling gas flow, and it is usually fixed on the pipeline through the flange. Due to the complexity of the gas extraction environment, the bolt connected with the flange is prone to rust, and the rust causes the bolt surface to be rough and the friction force to increase. At the same time, the bolt is corroded, which leads to the decrease of the bolt strength and the easy breakage of the bolt. Long-term stress may also deform and excessively engage between the bolt and the flange, so that the flange cannot be normally dismounted, resulting in the difficulty in normal dismounting and maintenance of the gas valve.

[0003] In the prior art, the bolt of the flange is usually cut by artificial hand-held electric saw, but the bolt cannot be effectively fixed during the cutting process. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of flange dismounting device, for fixing bolt in the cutting process of the bolt connected with flange.

[0005] The utility model provides a kind of flange dismounting device, comprising:

[0006] Main body, the main body is provided with through-hole, the through-hole is along first direction and penetrates the main body, the inner wall of the through-hole is surrounded and is provided with accommodating groove, the accommodating groove is used to accommodate two flanges connected by bolt, the accommodating groove has opposite first side wall and second side wall, the first side wall is provided with first clamping groove for clamping nut, the second side wall is provided with second clamping groove for clamping bolt head;The bottom wall of the accommodating groove is provided with cutting groove, the cutting groove is communicated with the accommodating groove, and the cutting groove is arranged around the accommodating groove;And

[0007] Cutting knife, the cutting knife is arranged in the accommodating groove, and the cutting knife partially extends into the accommodating groove, and the cutting knife is configured to cut the bolt from the middle of the two flanges.

[0008] In some embodiments, a first driving member is further included, the first driving member is connected to the cutting knife, and the first driving member can drive the cutting knife to move along the extension direction of the cutting groove.

[0009] In some embodiments, the main body is further provided with cutting cavity, the cutting cavity is arranged around the cutting groove, and the cutting cavity is used to avoid the cutting knife.

[0010] In some embodiments, the number of the first clamping groove and the second clamping groove is multiple, and the multiple first clamping grooves and the multiple second clamping grooves correspond one by one.

[0011] In some embodiments, the main body comprises:

[0012] a first block;

[0013] a second block detachably connected to the first block, and the second block is arranged with the first block along the first direction;

[0014] a third block detachably connected to the first block, and the third block is arranged with the first block along a second direction; and

[0015] a fourth block detachably connected to the second block and detachably connected to the third block, the fourth block is arranged with the second block along the second direction, and the fourth block is arranged with the third block along the first direction.

[0016] In some embodiments, the first block and the third block are each provided with a first connecting member capable of moving along the first direction;

[0017] wherein the first connecting member provided on the first block is capable of extending or retracting the first block along the first direction to detachably connect with the second block; the first connecting member provided on the third block is capable of extending or retracting the third block along the first direction to detachably connect with the fourth block.

[0018] In some embodiments, the first block and the second block are each provided with a second connecting member capable of moving along the second direction;

[0019] wherein the second connecting member provided on the first block is capable of extending or retracting the first block along the second direction to detachably connect with the third block; the second connecting member provided on the second block is capable of extending or retracting the second block along the second direction to detachably connect with the third block.

[0020] In some embodiments, further comprising:

[0021] a second driving member connected to the first connecting member, the second driving member being capable of driving the first connecting member to move along the first direction; and

[0022] a third driving member connected to the second connecting member, the third driving member being capable of driving the second connecting member to move along the second direction.

[0023] In some embodiments, a control unit is further included, which is arranged on the side of the first block away from the second block, and the second driving member and the third driving member are both electrically connected with the control unit.

[0024] In some embodiments, the first block, the second block, the third block and the fourth block are all provided with a handle.

[0025] The flange dismounting device provided by the present application has at least the following beneficial effects compared with the prior art:

[0026] The nut is clamped by the first clamping groove, and the bolt head is clamped by the second clamping groove, so that the flange dismounting device can fix the bolt during the cutting of the cutting knife, improve the cutting efficiency of the cutting knife, and prevent the bolt from being unsecured during cutting, so that the fragments of the bolt rod fall out and cause safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be described in more detail below based on the embodiments and with reference to the drawings.

[0028] Figure 1 is a structural schematic view of the flange dismounting device provided by the embodiments of the present application;

[0029] Figure 2 is a structural schematic view of the first block and the third block provided by the embodiments of the present application;

[0030] Figure 3 is a sectional view of the flange dismounting device provided by the embodiments of the present application.

[0031] REFERENCE SIGNS:

[0032] 1-flange dismounting device;

[0033] 11-main body; 111-through hole; 112-receiving groove; 1121-first side wall; 1122-second side wall; 1123-first clamping groove; 1124-second clamping groove; 113-cutting groove; 114-cutting cavity; 115-first block; 116-second block; 117-third block; 118-fourth block;

[0034] 12-cutting knife;

[0035] 13-first connecting member;

[0036] 14-second connecting member;

[0037] 15-second driving member;

[0038] 16-third driving member;

[0039] 17-Control unit;

[0040] 18-Handle. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0044] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0045] Please refer to the following: Figure 1 and Figure 2 This application provides a flange disassembly device 1, including a main body 11 and a cutting blade 12. The main body 11 is provided with a through hole 111, and the through hole 111 is along a first direction (e.g., Figure 1 (As shown in the X direction) Penetrating the main body 11, the inner wall of the main body 11 forming a through hole 111 is provided with a receiving groove 112. The receiving groove 112 is used to accommodate two flanges connected by bolts. The receiving groove 112 has a first side wall 1121 and a second side wall 1122 opposite to each other. The first side wall 1121 is provided with a first slot 1123 for locking a nut, and the second side wall 1122 is provided with a second slot 1124 for locking a bolt head. The bottom wall of the receiving groove 112 is provided with a cutting groove 113, which communicates with the receiving groove 112 and surrounds the receiving groove 112. A cutting blade 12 is provided in the receiving groove 112, and the cutting blade 12 partially extends into the receiving groove 112. The cutting blade 12 is configured to cut the bolt from the middle of the two flanges.

[0046] In this embodiment, when the flange disassembly device 1 is installed on the flange, the edge of the flange is accommodated in the receiving groove 112. Since the bolts used to connect the flange are typically near the flange edge, the first slot 1123 on the first sidewall 1121 can hold the nut, and the second slot 1124 on the second sidewall 1122 can hold the bolt head, thereby fixing the flange disassembly device 1 to the flange and simultaneously securing the bolts. When the flange disassembly device 1 is fixed to the flange, the through hole 111 can avoid obstructing the pipe connected through the flange, preventing interference between the flange disassembly device 1 and the pipe.

[0047] After the flange removal device 1 is installed on the flange, the cutting blade 12 rotates and cuts the bolt shank between the two mating flanges. Since the nut is held in place by the first slot 1123 and the bolt head is held in place by the second slot 1124, the flange removal device 1 can fix the bolt during the bolt cutting process, improve the efficiency of the cutting blade 12 in cutting the bolt, and at the same time prevent the bolt from being loose during the cutting process, which could cause some fragments of the bolt shank to break off and cause a safety accident.

[0048] In some embodiments, the flange removal device 1 further includes a first drive member (not shown in the figure), which is connected to the cutting blade 12 and is capable of driving the cutting blade 12 to move along the extension direction of the cutting groove 113.

[0049] It is understandable that flanges are generally connected by multiple bolts. In this embodiment, when the flange removal device 1 is installed on the flange, after the cutting blade 12 cuts one bolt, the first driving member can drive the cutting blade 12 to move along the extension direction of the cutting groove 113. Since the cutting groove 113 is arranged around the receiving groove 112, the movement of the cutting blade 12 along the extension direction of the cutting groove 113 is also the movement of the cutting blade 12 around the receiving groove 112, so that the cutting blade 12 can cut other bolts when the flange removal device 1 is not moved.

[0050] Please see Figure 2 In some embodiments, the main body 11 is also provided with a cutting cavity 114, which surrounds the cutting groove 113 and is used to avoid the cutting blade 12.

[0051] The cutting cavity 114 is arranged around the cutting groove 113, and the cutting blade 12 is partially housed in the cutting cavity 114. During the rotation of the cutting blade 12, the cutting cavity 114 can avoid the cutting blade 12 and prevent the cutting blade 12 from damaging other structures of the flange disassembly device 1.

[0052] In some embodiments, there are multiple first card slots 1123 and multiple second card slots 1124, and the multiple first card slots 1123 correspond one-to-one with the multiple second card slots 1124.

[0053] Understandably, flanges are generally connected by multiple bolts. In order to ensure that all bolts are fixed when the cutting blade 12 cuts all bolts, the first sidewall 1121 can be provided with multiple first slots 1123, and the second sidewall 1122 can be provided with multiple second slots 1124. The multiple first slots 1123 and multiple second slots 1124 correspond one-to-one with the multiple bolts, so that the nut of each bolt is locked in the corresponding first slot 1123 and the bolt head is locked in the corresponding second slot 1124.

[0054] Please refer to it again. Figure 1 In some embodiments, the main body 11 includes a first block 115, a second block 116, a third block 117, and a fourth block 118. The second block 116 is detachably connected to the first block 115, and the second block 116 and the first block 115 are arranged along a first direction. The third block 117 is detachably connected to the first block 115, and the third block 117 and the first block 115 are arranged along a second direction. The fourth block 118 is detachably connected to both the second block 116 and the third block 117, the fourth block 118 and the second block 116 are arranged along the second direction, and the fourth block 118 and the third block 117 are arranged along the first direction.

[0055] During the installation of the flange disassembly device 1, the connection sequence can be as follows: the first block 115 connects to the second block 116 while the third block 117 connects to the fourth block 118, and finally the first block 115 connects to the third block 117 and the second block 116 connects to the fourth block 118; or, the connection sequence can be as follows: the first block 115 connects to the third block 117 while the second block 116 connects to the fourth block 118, and finally the first block 115 connects to the second block 116 and the third block 117 connects to the fourth block 118.

[0056] Please see Figure 2 In some embodiments, both the first block 115 and the third block 117 are provided with a capability to move along a first direction (e.g., Figure 2 The first connecting member 13 moves in the X direction. The first connecting member 13 disposed on the first block 115 can extend or retract in the first direction to be detachably connected to the second block 116; the first connecting member 13 disposed on the third block 117 can extend or retract in the third block 117 in the first direction to be detachably connected to the fourth block 118.

[0057] During the installation of the flange disassembly device 1, the second block 116 is first placed on one side of the first block 115 in the first direction. Then, the first connecting member 13, which is provided on the first block 115, extends from the first block 115 in the first direction and connects to the second block 116, thereby connecting the first block 115 and the second block 116. Similarly, the fourth block 118 is placed on one side of the third block 117 in the first direction. Then, the first connecting member 13, which is provided on the third block 117, extends from the third block 117 in the first direction and connects to the fourth block 118, thereby connecting the third block 117 and the fourth block 118.

[0058] When it is necessary to disassemble the flange disassembly device 1, the first connecting member 13 provided on the first block 115 retracts the first block 115, thereby separating the first block 115 from the second block 116, and the first connecting member 13 provided on the third block 117 retracts the third block 117, thereby separating the third block 117 from the fourth block 118.

[0059] Please see Figure 3 In some embodiments, both the first block 115 and the second block 116 are provided with a capability to move along a second direction (e.g., Figure 3 The second connecting member 14 moves in the Y direction. The second connecting member 14 disposed on the first block 115 can extend or retract in the first block 115 in the second direction to be detachably connected to the third block 117; the second connecting member 14 disposed on the second block 116 can extend or retract in the second block 116 in the second direction to be detachably connected to the third block 117.

[0060] During the installation of the flange disassembly device 1, the third block 117 is first placed on one side of the first block 115 in the second direction. Then, the second connecting member 14, which is provided on the first block 115, extends from the first block 115 in the second direction and connects to the third block 117, thereby connecting the first block 115 and the third block 117. Similarly, the fourth block 118 is placed on one side of the second block 116 in the second direction. Then, the second connecting member 14, which is provided on the second block 116, extends from the second block 116 in the second direction and connects to the fourth block 118, thereby connecting the second block 116 and the fourth block 118.

[0061] When it is necessary to disassemble the flange disassembly device 1, the second connector 14 provided on the first block 115 retracts the first block 115, thereby separating the first block 115 from the third block 117, and the second connector 14 provided on the second block 116 retracts the second block 116, thereby separating the second block 116 from the fourth block 118.

[0062] Please see Figure 3In some embodiments, the flange disassembly device 1 further includes a second drive member 15 and a third drive member 16. The second drive member 15 is connected to the first connector 13 and is capable of driving the first connector 13 to move in a first direction. The third drive member 16 is connected to the second connector 14 and is capable of driving the second connector 14 to move in a second direction.

[0063] The number of second driving components 15 can be multiple, with each second driving component 15 corresponding one-to-one with the number of first connecting components 13. That is, some second driving components 15 can be disposed on the first block 115 to drive the first connecting components 13 disposed on the first block 115, and the remaining second driving components 15 can be disposed on the third block 117 to drive the first connecting components 13 disposed on the third block 117. Similarly, the number of third driving components 16 can also be multiple, with each third driving component 16 corresponding one-to-one with the number of second connecting components 14. That is, some third driving components 16 can be disposed on the first block 115 to drive the second connecting components 14 disposed on the first block 115, and the remaining third driving components 16 can be disposed on the second block 116 to drive the second connecting components 14 disposed on the second block 116.

[0064] In some embodiments, both the first connector 13 and the second connector 14 are screws.

[0065] Please see Figure 1 In some embodiments, the flange removal device 1 further includes a control unit 17, which is disposed on the side of the first block 115 away from the second block 116, and the second drive member 15 and the third drive member 16 are both electrically connected to the control unit 17.

[0066] The operator can control the second drive component 15 to drive the first connector 13 to move along the first direction through the control unit 17, and at the same time, the operator can control the third drive component 16 to drive the second connector 14 to move along the second direction through the control unit 17.

[0067] In addition, the first drive unit can also be electrically connected to the control unit 17.

[0068] Please see Figure 1 In some embodiments, the first block 115, the second block 116, the third block 117 and the fourth block 118 are all provided with handles 18.

[0069] Workers can hold the first block 115, the second block 116, the third block 117 and the fourth block 118 by the handle 18, which facilitates the installation or removal of the flange removal device 1.

[0070] Although the present invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flange disassembly device, characterized in that, include: The main body has a through hole that extends through the main body along a first direction. An inner wall of the main body surrounding the through hole has a receiving groove for accommodating two flanges connected by bolts. The receiving groove has opposing first and second sidewalls. The first sidewall has a first groove for securing a nut, and the second sidewall has a second groove for securing a bolt head. The bottom wall of the receiving groove has a cutting groove that communicates with the receiving groove and surrounds it. as well as A cutting blade is disposed in the receiving groove, with a portion of the cutting blade extending into the receiving groove, and the cutting blade is configured to cut the bolt from the middle of the two flanges.

2. The flange disassembly device according to claim 1, characterized in that, It also includes a first driving member, which is connected to the cutting blade and is capable of driving the cutting blade to move along the extension direction of the cutting groove.

3. The flange disassembly device according to claim 2, characterized in that, The main body is also provided with a cutting cavity, which is arranged around the cutting groove and is used to avoid the cutting blade.

4. The flange disassembly device according to claim 2, characterized in that, There are multiple first card slots and multiple second card slots, and each of the multiple first card slots corresponds to one of the multiple second card slots.

5. The flange disassembly device according to any one of claims 1-4, characterized in that, The subject includes: First block; The second body block is detachably connected to the first body block, and the second body block and the first body block are arranged along the first direction; A third body block, detachably connected to the first body block, and the third body block and the first body block are arranged along a second direction; and A fourth body block, which is detachably connected to the second body block and detachably connected to the third body block, is arranged along the second direction with the second body block and along the first direction with the third body block.

6. The flange disassembly device according to claim 5, characterized in that, Both the first block and the third block are provided with a first connecting member that can move along the first direction; The first connector disposed on the first block can extend or retract along the first direction to be detachably connected to the second block; the first connector disposed on the third block can extend or retract along the first direction to be detachably connected to the fourth block.

7. The flange disassembly device according to claim 6, characterized in that, Both the first block and the second block are provided with a second connecting member that can move along the second direction; The second connector disposed on the first block can extend or retract along the second direction to be detachably connected to the third block; the second connector disposed on the second block can extend or retract along the second direction to be detachably connected to the third block.

8. The flange disassembly device according to claim 7, characterized in that, Also includes: A second driving member is connected to the first connecting member, and the second driving member is capable of driving the first connecting member to move along the first direction; as well as A third driving member is connected to the second connecting member, and the third driving member is capable of driving the second connecting member to move along the second direction.

9. The flange disassembly device according to claim 8, characterized in that, It also includes a control unit, which is located on the side of the first block away from the second block, and the second drive member and the third drive member are both electrically connected to the control unit.

10. The flange disassembly device according to claim 5, characterized in that, The first block, the second block, the third block, and the fourth block are all equipped with handles.

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