A portable hand-held anti-rotation sleeve for double tube clamp assembly and method of use

Abstract

The application provides a portable hand-held anti-rotation clamp sleeve for double-tube clamp assembly and a use method, and belongs to the technical field of fixed guide pipes of an aero-engine. The anti-rotation clamp sleeve comprises a shell and a handle. The shell comprises a first side plate and two second side plates. The first side plate is used for surrounding the outer circumferential side surface of the entire outer ring of the double-tube clamp corresponding to the first clamp. The two ends of the first side plate extend to cover the outer circumferential side surface of the part of the second clamp close to the first clamp. The two second side plates are used for corresponding to the end surface of the double-tube clamp. The side of the second side plate away from the first side plate extends to cover the end surface of the part of the second clamp close to the first clamp. The second side plate covers at least part of the end surface of the first clamp. The first side plate and the two second side plates enclose a sleeve cavity for placing the first clamp and part of the second clamp. The application fixes the clamp when the clamp is used to fix the guide pipe, reduces the action force of the rotation of the clamp on the guide pipe, and reduces the damage to the connecting part of the guide pipe joint end.

Description

Technical Field

[0001] This application relates to the field of fixed ducts for aircraft engines, and in particular to a portable handheld anti-rotation clip for assembling double-tube clamps and a method of using it. Background Technology

[0002] A typical double-pipe clamp diagram is shown below. Figure 1 As shown, its main function is to fix the gap between two adjacent external conduits of the engine, preventing them from colliding and rubbing against each other due to vibration during engine operation. Over time, this could lead to conduit wear, media leakage, and accidents. (The clamp is mentioned as an example.) Figure 1 As shown, the structure consists of two halves, with each half clamping the outer diameter of one of the two conduits. M6 connecting bolts and nuts are used to tighten the connection, applying a torque of (3.2–4) N·m. During bolt tightening, since the clamp only connects the two conduits without other fixing devices, it rotates in the tightening direction, causing the conduits to rotate. Since the conduit joint acts as a seal with adjacent components, this rotation can lead to uneven stress on the joint, causing assembly stress and potentially damaging the sealing surface, resulting in a potential oil leak. Summary of the Invention

[0003] In view of this, this application provides a portable handheld anti-rotation clip for assembling double-tube clamps and a method of use, which solves the problems in the prior art. When installing clamps on the conduit, the clamps are fixed, reducing the force exerted on the conduit by the rotation of the clamps and reducing damage to the connection parts of the conduit connector.

[0004] On the one hand, the portable handheld anti-rotation clip for assembling double-tube clamps provided in this application adopts the following technical solution:

[0005] A portable handheld anti-rotation sleeve for assembling double-tube clamps, the double-tube clamps include opposing first clamps and second clamps, each of the opposing sides of the first clamp and the second clamp is provided with two spaced arc-shaped grooves, after the first clamp and the second clamp are joined together, the two pairs of arc-shaped grooves form two fixing holes for accommodating the pipeline, and the first clamp and the second clamp are fixedly connected by a connector.

[0006] The anti-rotation sleeve includes a housing and a handle. The housing includes a first side plate and two second side plates. The first side plate is used to surround the outer peripheral side of the first clamp corresponding to the entire outer ring of the double-tube clamp, and the two ends of the first side plate extend to cover a portion of the outer peripheral side of the second clamp near the first clamp. The two second side plates are used to correspond to the end face of the double-tube clamp. The two second side plates are located on opposite sides of the first side plate, and the side of the second side plate away from the first side plate extends to cover a portion of the end face of the second clamp near the first clamp. The second side plates cover at least a portion of the end face of the first clamp. The first side plate and the two second side plates form a sleeve cavity for placing the first clamp and a portion of the second clamp. The sleeve cavity and the double-tube clamp are in transition fit or clearance fit.

[0007] The handle is fixedly connected to the outer side of the housing.

[0008] Optionally, the handle is rod-shaped, and the length direction of the handle is parallel to the line connecting the centers of the two fixing holes.

[0009] Optionally, the second side plate is provided with an arc-shaped hole corresponding to the arc-shaped groove.

[0010] Optionally, the inner diameter of the arc-shaped hole is larger than the inner diameter of the arc-shaped groove. When the outer peripheral side of the first card is attached to the first side plate, the inner wall of the arc-shaped groove protrudes from the inner wall of the arc-shaped hole on the second side plate, so that the end face of the first card is located outside the sleeve cavity range in the part near the arc-shaped groove.

[0011] Optionally, the distance between the back-to-back sides of the first and second cards after docking is 'a', and the distance from the side of the second side plate extending into the range of the second card to the inner side of the first side plate is 'b', wherein the value of 'b' ranges from 60% to 70% of 'a'.

[0012] Optionally, the first side panel and the second side panel are integrally formed.

[0013] Optionally, the inner wall profile of the first side plate matches the outer peripheral side profile of the first card.

[0014] On the other hand, the method of using a portable handheld anti-rotation clip for assembling double-tube clamps provided in this application adopts the following technical solution:

[0015] A method for using a portable handheld anti-rotation clip for assembling double-tube clamps includes the following steps:

[0016] Connect the first and second clamps of the double-pipe clamp from both sides of the two pipes to be fixed, so that the pipes to be fixed are located in the fixing holes formed by the arc-shaped grooves.

[0017] Manually insert the fixing bolt from the side of the second clip facing away from the first clip into the connection hole between the first and second clips;

[0018] The anti-rotation sleeve is put onto the double tube clamp from the side of the first clamp that is opposite to the second clamp, so that the entire first clamp and part of the second clamp are put into the sleeve cavity.

[0019] Hold the handle to secure the double-tube clamp while tightening the bolts.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] The housing is fitted around the first clamp from below, aligning the first and second clamps, with part of the second clamp also entering the housing. The operator holds the anti-rotation clamp and tightens the bolts from one side of the second clamp. During tightening, the operator applies force to the housing using the handle to stabilize the positions of the first and second clamps, preventing rotation of the double-pipe clamp, reducing the force exerted on the pipe to be fixed by the clamp, reducing stress on the connecting components of the pipe joint, and preventing damage to the sealing surface of the pipe joint that could lead to oil leaks. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the double-tube clamp according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the overall structure of the anti-rotation jacket in this application;

[0025] Figure 3 This is a schematic diagram of the overall structure of the anti-rotation jacket from another perspective of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the anti-rotation jacket and double-tube clamp used in this application.

[0027] Explanation of reference numerals in the attached drawings: 1. First clamping element; 11. Arc-shaped groove; 12. Bolt; 13. Connecting hole; 2. Second clamping element; 3. Anti-rotation sleeve; 31. Housing; 32. Handle; 33. Sleeve cavity; 4. First side plate; 5. Second side plate; 51. Arc-shaped hole. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0031] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0033] This application provides a portable handheld anti-rotation clip for assembling double-tube clamps.

[0034] like Figure 1As shown, the double-pipe clamp includes a first clamp 1 and a second clamp 2 facing each other. The opposing sides of the first clamp 1 and the second clamp 2 are provided with two spaced arc-shaped grooves 11. After the first clamp 1 and the second clamp 2 are joined together, the two pairs of arc-shaped grooves 11 form two fixing holes to accommodate the pipeline. The first clamp 1 and the second clamp 2 are fixedly connected by a connector, which can be a bolt 12. The connection holes 13 of the first clamp 1 and the second clamp 2 for connecting the bolt 12 are located between the two arc-shaped grooves 11 on the same clamp. The connection hole of the first clamp 1 is a threaded hole that mates with the shank of the bolt 12. The connection hole of the second clamp 2 is a stepped hole. The end of the stepped hole near the first clamp 1 is a small diameter part, and the end away from the first clamp 1 is a large diameter part. The large diameter part of the stepped hole allows the shank and head of the bolt 12 to pass through, while the small diameter part of the stepped hole only allows the shank of the bolt 12 to pass through. The connecting end faces of the small diameter part and the large diameter part are used to abut against the head of the bolt 12. Generally, the first clamp 1 and the second clamp 2 of a double-tube clamp are arranged vertically. This application describes the anti-rotation sleeve 3 of this application with the first clamp 1 and the second clamp 2 arranged vertically.

[0035] like Figure 2-4 As shown, a portable handheld anti-rotation clip for assembling double-tube clamps includes a housing 31 and a handle 32. The housing 31 includes a first side plate 4 and two second side plates 5. The first side plate 4 is used to surround the first clamp 1 and correspond to the entire outer peripheral side of the double-tube clamp. Both ends of the first side plate 4 extend to cover a portion of the outer peripheral side of the second clamp 2 near the first clamp 1. The two second side plates 5 are used to correspond to the end faces of the double-tube clamp. The two second side plates 5 are located on opposite sides of the first side plate 4. The side of the second side plate 5 away from the first side plate 4 extends to cover a portion of the end face of the second clamp 2 near the first clamp 1. The second side plates 5 cover at least a portion of the end face of the first clamp 1. The first side plate 4 and the two second side plates 5 form a sleeve cavity 33 for placing the first clamp 1 and placing the second clamp 2. The sleeve cavity 33 and the double-tube clamp are in transition fit or clearance fit. The handle 32 is fixedly connected to the outer side of the housing 31.

[0036] After the first clamp 1 and the second clamp 2 are pre-tightened with bolt 12, the pre-tightening is relatively loose and will not exert force on the pipeline to be fixed. The housing 31 is placed under the first clamp 1 from below, around the outer periphery of the first clamp 1, and the first clamp 1 and the second clamp 2 are aligned, with part of the second clamp 2 also entering the housing 31. The operator holds the anti-rotation clamp 3 and tightens the bolt 12 from one side of the second clamp 2. During the tightening of the bolt 12, the operator applies force to the housing 31 through the handle 32 to stabilize the position of the first clamp 1 and the second clamp 2, prevent the double pipe clamp from rotating, reduce the force exerted on the pipeline to be fixed by the rotation of the double pipe clamp, reduce the stress on the connecting parts of the pipeline to be fixed, and avoid damage to the sealing surface of the pipeline to be fixed, which could lead to oil leakage.

[0037] The handle 32 is rod-shaped. The length direction of the handle 32 is parallel to the line connecting the centers of the two fixing holes. The length direction of the handle 32 is parallel to the plane of the two pipes to be fixed and perpendicular to the length direction of the pipes to be fixed, so that the end of the handle 32 away from the housing extends to the outside of the range of the two pipes, making it convenient for personnel to hold the handle 32.

[0038] The second side plate 5 is provided with an arc-shaped hole 51 corresponding to the arc-shaped groove 11. The end face shape of the second side plate 5 corresponds to that of the double tube clamp, which can cover more of the end face of the double tube clamp as much as possible, increase the contact surface between the second side plate 5 and the double tube clamp, and ensure the fixing effect of the housing 31 on the double tube clamp.

[0039] like Figure 4 As shown, the inner diameter of the arc-shaped hole 51 is larger than the inner diameter of the arc-shaped groove 11. When the outer peripheral side of the first clip 1 is attached to the first side plate 4, the inner wall surface of the arc-shaped groove 11 protrudes from the inner wall surface of the arc-shaped hole 51 on the second side plate 5, so that the end face of the first clip 1 is located outside the range of the sleeve cavity 33 in the part near the arc-shaped groove 11. This avoids the second side plate 5 from contacting the outer wall of the pipeline to be fixed, and reduces the force exerted by the second side plate 5 on the pipeline to be fixed when the engine assembly personnel apply force to the housing 31, thus preventing damage to the pipeline to be fixed by the second side plate 5.

[0040] Specifically, the distance between the back-to-back sides of the first card 1 and the second card 2 after docking is a, and the distance from the side of the second side plate 5 extending into the range of the second card 2 to the inner side of the first side plate 4 is b, wherein the value of b is in the range of 60%-70%a.

[0041] The first side plate 4 and the second side plate 5 are integrally formed.

[0042] The inner wall profile of the first side plate 4 matches the outer peripheral side profile of the first clamping member 1. This ensures full contact between the first side plate 4 and the first clamping member 1, allowing the force exerted by the housing 31 to be better transmitted to the double-tube clamp, which is beneficial for the stability of the double-tube clamp.

[0043] This application also discloses a method for using a portable handheld anti-rotation clip for assembling double-tube clamps.

[0044] A method for using a portable handheld anti-rotation clip for assembling double-tube clamps includes the following steps:

[0045] Connect the first clamp 1 and the second clamp 2 of the double pipe clamp from both sides of the two pipes to be fixed, so that the pipes to be fixed are located in the fixing holes formed by the arc-shaped grooves 11.

[0046] Manually insert the fixing bolt 12 from the side of the second clip 2 facing away from the first clip 1 into the connecting hole of the first clip 1 and the second clip 2;

[0047] The anti-rotation sleeve 3 is put onto the double tube clamp from the side of the first clamp 1 facing away from the second clamp 2, so that the first clamp 1 as a whole and part of the second clamp 2 are put into the sleeve cavity 33.

[0048] Hold the handle 32 to fix the double tube clamp, and tighten the bolt 12 at the same time.

[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A portable handheld anti-rotation clip for assembling double-pipe clamps, the double-pipe clamp comprising opposing first clamping parts (1) and second clamping parts (2), each of the opposing sides of the first clamping parts (1) and second clamping parts (2) having two spaced-apart arc-shaped grooves (11), the two pairs of arc-shaped grooves (11) forming two fixing holes for accommodating pipes after the first clamping parts (1) and second clamping parts (2) are joined together, the first clamping parts (1) and second clamping parts (2) being fixedly connected by a connector, characterized in that, The anti-rotation clamp (3) includes a housing (31) and a handle (32). The housing (31) includes a first side plate (4) and two second side plates (5). The first side plate (4) is used to surround the outer peripheral side of the entire double-tube clamp corresponding to the first clamp (1), and the two ends of the first side plate (4) extend to cover the outer peripheral side of the second clamp (2) near the first clamp (1). The two second side plates (5) are used to correspond to the end faces of the double-tube clamp. Located on opposite sides of the first side plate (4), and the side of the second side plate (5) away from the first side plate (4) extends to cover a portion of the end face of the second clip (2) near the first clip (1), the second side plate (5) covers at least a portion of the end face of the first clip (1), the first side plate (4) and the two second side plates (5) form a sleeve cavity (33) for placing the first clip (1) and a portion of the second clip (2), the sleeve cavity (33) and the double tube clamp transition fit or clearance fit; The handle (32) and the outer side of the housing (31) are fixedly connected; The second side plate (5) is provided with an arc-shaped hole (51) corresponding to the arc-shaped groove (11); The distance between the back-to-back sides of the first card (1) and the second card (2) after docking is a, and the distance from the side of the second side plate (5) extending into the range of the second card (2) to the inner side of the first side plate (4) is b, wherein the value of b is in the range of 60%-70%a.

2. The portable handheld anti-rotation clip for assembling double-tube clamps according to claim 1, characterized in that, The handle (32) is rod-shaped, and the length direction of the handle (32) is parallel to the line connecting the centers of the two fixing holes.

3. The portable handheld anti-rotation clip for assembling double-tube clamps according to claim 1, characterized in that, The inner diameter of the arc-shaped hole (51) is larger than the inner diameter of the arc-shaped groove (11). When the outer peripheral side of the first card (1) is attached to the first side plate (4), the inner wall surface of the arc-shaped groove (11) protrudes from the inner wall surface of the arc-shaped hole (51) on the second side plate (5), so that the end face of the first card (1) is located outside the range of the sleeve cavity (33) in the part near the arc-shaped groove (11).

4. The portable handheld anti-rotation clip for assembling double-tube clamps according to claim 1, characterized in that, The first side plate (4) and the second side plate (5) are integrally formed.

5. The portable handheld anti-rotation clip for assembling double-tube clamps according to claim 1, characterized in that, The inner wall profile of the first side plate (4) matches the outer peripheral side profile of the first clip (1).

6. A method of using a portable handheld anti-rotation clip for assembling double-tube clamps, characterized in that, Includes the following steps: The first clamp (1) and the second clamp (2) of the double pipe clamp are joined together from both sides of the two pipes to be fixed, so that the pipes to be fixed are located in the fixing holes formed by the arc-shaped groove (11); Manually insert the fixing bolt (12) from the side of the second clip (2) facing away from the first clip (1) into the connecting hole of the first clip (1) and the second clip (2); The anti-rotation sleeve (3) as described in any one of claims 1-5 is fitted onto the double tube clamp from the side of the first clamp (1) facing away from the second clamp (2), so that the first clamp (1) as a whole and part of the second clamp (2) are placed into the sleeve cavity (33); Hold the handle (32) to fix the double tube clamp, and tighten the bolt (12) at the same time.

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