Air pipe auxiliary butt joint device

Abstract

The utility model discloses an auxiliary butt joint device for air pipes. The air pipe auxiliary butt joint device comprises a tensioning mechanism, the tensioning mechanism comprises a first tensioning piece, a second tensioning piece, an elastic element and a locking piece, the first tensioning piece and the second tensioning piece are oppositely arranged, a sliding connecting arm is arranged on the side, close to the second tensioning piece, of the first tensioning piece, the sliding connecting arm is in sliding connection with the second tensioning piece, and the elastic element is connected with the locking piece; a guide rod is arranged on the side, close to the first tensioning piece, of the second tensioning piece and penetrates through the first tensioning piece, the locking piece is detachably arranged at the end of the guide rod, the guide rod is sleeved with the elastic element, and the two ends of the elastic element abut against the first tensioning piece and the second tensioning piece respectively. The auxiliary butt joint pipe is in an open circular ring shape, a first protruding part and a second protruding part are arranged on the auxiliary butt joint pipe, and the first protruding part and the second protruding part are sequentially and oppositely arranged in the circumferential direction of the auxiliary butt joint pipe. According to the air pipe auxiliary butt joint device, the butt joint precision and the butt joint stability of the to-be-welded air pipes are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct connection, in particular to an air duct auxiliary docking device. Background Art

[0002] In the prior art, when welding air ducts, multiple workers need to cooperate with each other to accurately connect the two air ducts to be welded together. This is not only time-consuming and reduces the efficiency of air duct welding construction, but also has poor connection accuracy.

[0003] Therefore, how to improve the docking accuracy of the air ducts to be welded and at the same time improve the efficiency of the air duct welding construction is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0004] In view of this, an object of the present invention is to provide an auxiliary butt joint device for air ducts to improve the butt joint accuracy of the air ducts to be welded.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An air duct auxiliary docking device, comprising:

[0007] A tensioning mechanism, the tensioning mechanism comprising a first tensioning member, a second tensioning member, an elastic element and a locking member, the first tensioning member and the second tensioning member are arranged opposite to each other, a sliding connection arm is arranged on a side of the first tensioning member close to the second tensioning member, the sliding connection arm is slidably connected to the second tensioning member, a guide rod is arranged on a side of the second tensioning member close to the first tensioning member, the guide rod passes through the first tensioning member, the locking member is detachably arranged at an end of the guide rod, the elastic element is sleeved on the guide rod, and two ends of the elastic element are respectively abutted against the first tensioning member and the second tensioning member;

[0008] The auxiliary butt joint tube is in the shape of an open circular ring. A first protrusion and a second protrusion are arranged on the auxiliary butt joint tube. The first protrusion and the second protrusion are arranged sequentially and oppositely in the circumferential direction of the auxiliary butt joint tube.

[0009] Optionally, in the above-mentioned air duct auxiliary docking device, the locking member is a locking nut, and one end of the guide rod close to the first tensioning member is a threaded rod capable of cooperating with the locking nut.

[0010] Optionally, in the above-mentioned air duct auxiliary docking device, the sliding connecting arm includes a first cantilever guide rail and a second cantilever guide rail, and the first cantilever guide rail and the second cantilever guide rail are symmetrically arranged on both sides of the guide rod.

[0011] Optionally, in the above-mentioned air duct auxiliary docking device, in a plane perpendicular to the axis of the guide rod, the cross-sectional shape of the first cantilever guide rail and the second cantilever guide rail is arc-shaped.

[0012] Optionally, in the above-mentioned air duct auxiliary docking device, a first countersunk hole and a second countersunk hole are respectively provided on the side of the first tensioning member close to the elastic element and the side of the second tensioning member close to the elastic element, and the two ends of the elastic element are respectively inserted into the first countersunk hole and the second countersunk hole.

[0013] Optionally, in the above-mentioned air duct auxiliary docking device, the elastic coefficient of the elastic element is proportional to the strength of the auxiliary docking tube and the strength of the air duct to be connected.

[0014] Optionally, in the above-mentioned air duct auxiliary docking device, the tensioning mechanism further includes a first opening member and a second opening member, the first opening member is detachably arranged on a side of the first tensioning member away from the second tensioning member, and the second opening member is detachably arranged on a side of the second tensioning member away from the first tensioning member;

[0015] The first support member and the second support member are further provided with a first boss and a second boss respectively, the first boss protrudes toward a side of the first tensioning member away from the second tensioning member, and the second boss protrudes toward a side of the second tensioning member away from the first tensioning member.

[0016] Optionally, in the above-mentioned air duct auxiliary docking device, the tensioning mechanism further includes a first bolt, a second bolt, a first nut and a second nut;

[0017] Among them, the first bolt and the second bolt pass through the first boss and the second boss respectively, the first nut is installed on the first bolt and is located on the side of the first boss away from the elastic element, the second nut is installed on the second bolt and is located on the side of the second boss away from the elastic element, the first protrusion and the second protrusion are respectively provided with a first through hole and a second through hole, the diameter of the first through hole is larger than the diameter of the first bolt, and the diameter of the second through hole is larger than the diameter of the second bolt.

[0018] Optionally, in the above-mentioned air duct auxiliary docking device, a handle is provided on the second tensioning member, the handle includes a mounting portion and a holding portion, the mounting portion is detachably connected to the second tensioning member, and the holding portion is bent from the end of the mounting portion to a side away from the elastic element.

[0019] Optionally, in the above-mentioned air duct auxiliary docking device, an anti-slip structure is provided at the end of the sliding connection arm, and the anti-slip structure is located on a side of the second tensioning member away from the first tensioning member.

[0020] When using the air duct auxiliary docking device provided by the utility model, the two pipe fittings to be welded are respectively sleeved together with the first pipe section and the second pipe section of the auxiliary docking pipe, and then the first tensioning member is moved to the side close to the second tensioning member, and the sliding connecting arm on the first tensioning member slides in the sliding connecting hole of the second tensioning member to guide the first tensioning member, thereby reducing the distance between the first tensioning member and the second tensioning member, and the elastic element is compressed. When the distance between the first tensioning member and the second tensioning member is reduced to a point where the distance can be placed between the first protrusion and the second protrusion, the first tensioning member and the second tensioning member are placed between the first protrusion and the second protrusion, the locking member is removed, and the first tensioning member is moved to the side away from the second tensioning member, and the first tensioning member and the second tensioning member are connected by the compression deformation force of the elastic element. The distance between the first tensioning member and the second tensioning member is expanded until the first tensioning member and the second tensioning member abut against each other, and the compressive deformation force of the elastic element continues to push the first protrusion and the second protrusion to move in opposite directions until the auxiliary butt joint tube and the two pipe fittings to be welded are tensioned to a straight diameter. At this time, the locking member is installed on the end of the guide rod to achieve locking. Under the locking force of the locking member and the compressive deformation force of the elastic element, the first tensioning member is subjected to force balance, and the opening distance between the first tensioning member and the second tensioning member remains stable, so that the two pipe fittings to be welded are accurately butted and stably maintained in a precise butt joint state. After the first pipe section and the second pipe section of the auxiliary butt joint tube are respectively welded to the first pipe fitting to be welded and the second pipe fitting to be welded, the first tensioning member is moved again to reduce the distance between the first tensioning member and the second tensioning member, and the tensioning mechanism can be removed.

[0021] It can be seen that the air duct auxiliary docking device provided by the utility model not only improves the docking accuracy and docking stability of the air duct to be welded, but also improves the air duct welding construction efficiency and welding quality, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A structural schematic diagram of a tensioning mechanism provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the structure of an auxiliary butt joint pipe provided by an embodiment of the utility model;

[0025] Figure 3 A schematic structural diagram of a first tensioning member provided in an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the structure of a second tensioning member provided in an embodiment of the utility model;

[0027] Figure 5 A schematic structural diagram of a first boss provided in an embodiment of the utility model.

[0028] Among them, 100 is a tensioning mechanism, 101 is a first tensioning member, 1011 is a sliding connecting arm, 1011-a is a first cantilever guide rail, 1011-b is a second cantilever guide rail, 102 is a second tensioning member, 1021 is a guide rod, 103 is an elastic element, 104 is a locking member, 105 is a first opening member, 1051 is a first boss, 106 is a second opening member, 107 is a handle, 200 is an auxiliary docking tube, 201 is a first protruding portion, and 202 is a second protruding portion. DETAILED DESCRIPTION

[0029] In view of this, the core of the present invention is to provide an auxiliary butt joint device for air ducts to improve the butt joint accuracy of the air ducts to be welded.

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 5 As shown, an embodiment of the utility model discloses an auxiliary docking device for air ducts, including a tensioning mechanism 100 and an auxiliary docking tube 200 .

[0032] The tensioning mechanism 100 includes a first tensioning member 101, a second tensioning member 102, an elastic element 103 and a locking member 104. The first tensioning member 101 and the second tensioning member 102 are arranged opposite to each other. A sliding connecting arm 1011 is arranged on a side of the first tensioning member 101 close to the second tensioning member 102. The sliding connecting arm 1011 is slidably connected to the second tensioning member 102. A guide rod 1021 is arranged on a side of the second tensioning member 102 close to the first tensioning member 101. The guide rod 1021 penetrates the first tensioning member 101. The tensioning member 101 and the locking member 104 are detachably arranged at the end of the guide rod 1021, the elastic element 103 is sleeved on the guide rod 1021, and the two ends of the elastic element 103 are respectively abutted against the first tensioning member 101 and the second tensioning member 102; the auxiliary docking tube 200 is in an open circular shape, and the first protrusion 201 and the second protrusion 202 are arranged on the auxiliary docking tube 200, and the first protrusion 201 and the second protrusion 202 are arranged sequentially and relatively in the circumferential direction of the auxiliary docking tube 200.

[0033] When using the air duct auxiliary docking device provided by the utility model, the two pipes to be welded are respectively sleeved with the first pipe section and the second pipe section of the auxiliary docking pipe 200, and then the first tensioning member 101 is moved to the side close to the second tensioning member 102, and the sliding connection arm 1011 on the first tensioning member 101 slides in the sliding connection hole of the second tensioning member 102 to guide the first tensioning member 101, thereby making the distance between the first tensioning member 101 and the second tensioning member 102 When the distance between the first tensioning member 101 and the second tensioning member 102 is reduced and the elastic element 103 is compressed, and the distance between the first tensioning member 101 and the second tensioning member 102 is reduced to a point where the first tensioning member 101 and the second tensioning member 102 can be placed between the first protrusion 201 and the second protrusion 202, the first tensioning member 101 and the second tensioning member 102 are placed between the first protrusion 201 and the second protrusion 202, and the locking member 104 is removed to move the first tensioning member 101 to the side away from the second tensioning member 102, and the first tensioning member 101 is compressed by the compression deformation force of the elastic element 103. The distance between the first tensioning member 101 and the second tensioning member 102 is expanded until the first tensioning member 101 and the second tensioning member 102 are abutted, and the compressive deformation force of the elastic element 103 continues to push the first protrusion 201 and the second protrusion 202 to move in opposite directions until the auxiliary butt joint tube 200 and the two pipe fittings to be welded are tensioned to the same diameter. At this time, the locking member 104 is installed at the end of the guide rod 1021 to achieve locking. Under the locking force of the locking member 104 and the compressive deformation force of the elastic element 103, the first tensioning member 101 is subjected to force balance, and the opening distance between the first tensioning member 101 and the second tensioning member 102 remains stable, so that the two pipe fittings to be welded are accurately butted and stably maintained in a precise butt joint state. After the first pipe section and the second pipe section of the auxiliary butt joint tube 200 are respectively welded to the first pipe fitting to be welded and the second pipe fitting to be welded are completed, the first tensioning member 101 is moved again to reduce the distance between the first tensioning member 101 and the second tensioning member 102, and the tensioning mechanism 100 can be removed.

[0034] It can be seen that the air duct auxiliary docking device provided by the utility model not only improves the docking accuracy and docking stability of the air duct to be welded, but also improves the air duct welding construction efficiency and welding quality, and is suitable for popularization and use; at the same time, the air duct auxiliary docking device can be applicable to the connection of air ducts of various diameter specifications, thereby improving versatility.

[0035] It should be understood that the above-mentioned locking member 104 can be a type of component such as a clamp or a nut installed at the end of the guide rod 1021. As long as the locking member 104 can achieve the locking function, it belongs to the protection scope of the present invention; optionally, the locking member 104 provided in the embodiment of the present invention is a locking nut, and the end of the guide rod 1021 close to the first tensioning member 101 is a threaded rod that can cooperate with the locking nut, so that the locking nut is installed on the guide rod 1021 by threaded cooperation, and the elastic element 103 is compressed by rotating the locking nut, and the distance between the first tensioning member 101 and the second tensioning member 102 is reduced. The distance between the first tensioning member 101 and the second tensioning member 102 is increased by rotating the locking nut in the opposite direction and with the help of the deformation force of the elastic element 103.

[0036] The above-mentioned sliding connecting arm 1011 can be one, two or more, and the sliding connecting arm 1011 can be a straight arm or an arc-shaped arm. As long as the setting method can meet the use requirements, it belongs to the protection scope of the present utility model; optionally, in a specific embodiment of the present utility model, the sliding connecting arm 1011 includes a first cantilever guide rail 1011-a and a second cantilever guide rail 1011-b, and the first cantilever guide rail 1011-a and the second cantilever guide rail 1011-b are symmetrically arranged on both sides of the guide rod 1021. In a plane perpendicular to the axis of the guide rod 1021, the cross-sectional shape of the first cantilever guide rail 1011-a and the second cantilever guide rail 1011-b is arc-shaped, and the sliding connecting hole includes a first sliding hole and a second sliding hole, and the first sliding hole and the second sliding hole are symmetrically arranged on both sides of the center of the second tensioning member 102. The force is balanced by the symmetrically arranged cantilever guides, so that the smoothness of the tensioning process is improved.

[0037] Furthermore, a first countersunk hole and a second countersunk hole are respectively provided on one side of the first tensioning member 101 close to the elastic element 103 and a second countersunk hole is respectively provided on the side of the second tensioning member 102 close to the elastic element 103, and the two ends of the elastic element 103 are respectively inserted into the first countersunk hole and the second countersunk hole, so as to limit the two ends of the elastic element 103 by the first countersunk hole and the second countersunk hole to prevent the deformation force direction of the elastic element 103 from tilting and affecting the connection of the air duct.

[0038] It should be noted that the elastic element 103 may be a coil spring or a disc spring, etc. As long as the elastic element 103 type can meet the use requirements, it belongs to the protection scope of the present invention; optionally, in some specific embodiments of the present invention, the elastic element 103 adopts a disc spring.

[0039] Furthermore, the elastic coefficient of the elastic element 103 is proportional to the strength of the auxiliary butt joint tube 200 and the strength of the air duct to be connected, so as to prevent the auxiliary butt joint tube 200 and the air duct to be connected from being torn due to excessive deformation force of the elastic element 103 .

[0040] Furthermore, the tensioning mechanism 100 further comprises a first stretching member 105 and a second stretching member 106, wherein the first stretching member 105 is detachably arranged on a side of the first tensioning member 101 away from the second tensioning member 102, and the second stretching member 106 is detachably arranged on a side of the second tensioning member 102 away from the first tensioning member 101; wherein the first stretching member 105 and the second stretching member 106 are further respectively provided with a first boss 1051 and a second boss, wherein the first boss 1051 protrudes toward a side of the first tensioning member 101 away from the second tensioning member 102, and the second boss protrudes toward a side of the second tensioning member 102 away from the first tensioning member 101, so that when the air duct is tensioned, the first boss 1051 abuts against the first protruding portion 201, and the second boss abuts against the second protruding portion 202, thereby further increasing the maximum opening distance of the tensioning mechanism 100, so that the air duct auxiliary docking device is suitable for docking of air ducts of various diameter specifications, thereby improving versatility.

[0041] In addition, the tensioning mechanism 100 further includes a first bolt, a second bolt, a first nut, and a second nut; wherein the first bolt and the second bolt respectively penetrate the first boss 1051 and the second boss, the first nut is mounted on the first bolt and is located on the side of the first boss 1051 away from the elastic element 103, the second nut is mounted on the second bolt and is located on the side of the second boss away from the elastic element 103, the first protrusion 201 and the second protrusion 202 are respectively provided with a first through hole and a second through hole, the diameter of the first through hole is larger than the diameter of the first bolt, and the diameter of the second through hole is larger than the diameter of the second bolt, so that when the air duct is tensioned, the first nut is pressed against the first protrusion 201. Then, the second nut abuts against the second protrusion 202, further increasing the maximum opening distance of the tensioning mechanism 100, so that the air duct auxiliary docking device is suitable for docking air ducts of various diameters and specifications, thereby improving versatility. In addition, the end of the first bolt is inserted into and matched with the first through hole to achieve the limitation between the first protrusion 201 and the first tensioning member 101, and the end of the second bolt is inserted into and matched with the second through hole to achieve the limitation between the second protrusion 202 and the second tensioning member 102, thereby preventing misalignment between the first protrusion 201 and the first nut, and between the second protrusion 202 and the second nut during the tensioning of the air duct, thereby affecting the stability of the tensioning process.

[0042] It should be understood that the number of the first nuts and the second nuts mentioned above is not limited. In practical applications, the number of the first nuts and the second nuts can be adaptively increased according to actual needs. As long as the number can meet the use requirements, it belongs to the protection scope of the present utility model.

[0043] In addition, a handle 107 is provided on the second tensioning member 102, and the handle 107 includes a mounting portion and a holding portion. The mounting portion is detachably connected to the second tensioning member 102, and the holding portion is bent from the end of the mounting portion to a side away from the elastic element 103 so as to keep the holding portion away from the first tensioning member 101, thereby increasing the operating space, facilitating the disassembly of the tensioning mechanism 100, and improving the construction efficiency.

[0044] In addition, an anti-detachment structure is provided at the end of the above-mentioned sliding connecting arm 1011, and the anti-detachment structure is located on the side of the second tensioning member 102 away from the first tensioning member 101, so as to prevent the first tensioning member 101 from moving to the sliding connecting arm 1011 and detaching from the sliding connecting hole of the second tensioning member 102, resulting in the need to reassemble the air duct auxiliary docking device during subsequent air duct docking, thereby reducing construction efficiency.

[0045] The above-mentioned anti-slip structure can be a block or a clamping piece installed at the end of the sliding connecting arm 1011, or it can be an anti-slip structure formed by directly bending the end of the sliding connecting arm 1011. As long as the structure type can meet the use requirements, it belongs to the protection scope of the present utility model.

[0046] The terms "first" and "second" in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary docking device for air ducts, characterized in that: include: A tensioning mechanism, the tensioning mechanism comprising a first tensioning member, a second tensioning member, an elastic element and a locking member, the first tensioning member and the second tensioning member are arranged opposite to each other, a sliding connection arm is arranged on a side of the first tensioning member close to the second tensioning member, the sliding connection arm is slidably connected to the second tensioning member, a guide rod is arranged on a side of the second tensioning member close to the first tensioning member, the guide rod passes through the first tensioning member, the locking member is detachably arranged at an end of the guide rod, the elastic element is sleeved on the guide rod, and two ends of the elastic element are respectively abutted against the first tensioning member and the second tensioning member; The auxiliary butt joint tube is in the shape of an open circular ring. A first protrusion and a second protrusion are arranged on the auxiliary butt joint tube. The first protrusion and the second protrusion are arranged sequentially and oppositely in the circumferential direction of the auxiliary butt joint tube.

2. The air duct auxiliary docking device according to claim 1, characterized in that: The locking member is a locking nut, and one end of the guide rod close to the first tensioning member is a threaded rod capable of cooperating with the locking nut.

3. The air duct auxiliary docking device according to claim 1, characterized in that: The sliding connecting arm comprises a first cantilever guide rail and a second cantilever guide rail, and the first cantilever guide rail and the second cantilever guide rail are symmetrically arranged on both sides of the guide rod.

4. The air duct auxiliary docking device according to claim 3, characterized in that: In a plane perpendicular to the axis of the guide rod, the cross-section of the first cantilever guide rail and the second cantilever guide rail is arc-shaped.

5. The air duct auxiliary docking device according to claim 1, characterized in that: A first countersunk hole and a second countersunk hole are respectively provided on one side of the first tensioning member close to the elastic element and on one side of the second tensioning member close to the elastic element, and two ends of the elastic element are respectively inserted into the first countersunk hole and the second countersunk hole.

6. The air duct auxiliary docking device according to claim 1, characterized in that: The elastic coefficient of the elastic element is proportional to the strength of the auxiliary butt joint pipe and the strength of the air duct to be connected.

7. The air duct auxiliary docking device according to claim 1, characterized in that: The tensioning mechanism further comprises a first opening member and a second opening member, wherein the first opening member is detachably arranged on a side of the first tensioning member away from the second tensioning member, and the second opening member is detachably arranged on a side of the second tensioning member away from the first tensioning member; The first support member and the second support member are further provided with a first boss and a second boss respectively, the first boss protrudes toward a side of the first tensioning member away from the second tensioning member, and the second boss protrudes toward a side of the second tensioning member away from the first tensioning member.

8. The air duct auxiliary docking device according to claim 7, characterized in that: The tensioning mechanism further includes a first bolt, a second bolt, a first nut and a second nut; Among them, the first bolt and the second bolt pass through the first boss and the second boss respectively, the first nut is installed on the first bolt and is located on the side of the first boss away from the elastic element, the second nut is installed on the second bolt and is located on the side of the second boss away from the elastic element, the first protrusion and the second protrusion are respectively provided with a first through hole and a second through hole, the diameter of the first through hole is larger than the diameter of the first bolt, and the diameter of the second through hole is larger than the diameter of the second bolt.

9. The air duct auxiliary docking device according to claim 1, characterized in that: The second tensioning member is provided with a handle, the handle comprising a mounting portion and a gripping portion, the mounting portion is detachably connected to the second tensioning member, and the gripping portion is formed by bending from the end of the mounting portion to a side away from the elastic element.

10. The air duct auxiliary docking device according to claim 1, characterized in that: An anti-slip structure is provided at the end of the sliding connection arm, and the anti-slip structure is located at a side of the second tensioning member away from the first tensioning member.

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