An auxiliary device for welding central air-conditioning pipes in building construction

Abstract

The present invention discloses a central air-conditioning pipe welding auxiliary device for construction, including a base and a rotating table, wherein the base is horizontally arranged, a driving assembly is vertically fixed to the top surface of the base, and the rotating table capable of horizontal rotation is horizontally fixed to the top of the driving assembly, and a conical block is coaxially fixed to the middle of the rotating table. The beneficial effects are as follows: the present invention sets the copper tube on the conical block in an upright manner, and then the copper tube can be driven by the rotating table to rotate at a uniform speed for welding, which replaces the method of workers holding the copper tube to rotate, reduces the workers' work intensity and is conducive to improving welding efficiency; the upright copper tube is clamped by the arc-shaped clamping plates of multiple clamping assemblies close to each other to maintain the upright state of the copper tube, which prevents radial runout during the rotation of the copper tube, avoids dislocation at the welding seam of the copper tube, and is conducive to improving welding quality.

Description

Technical Field

[0001] The invention relates to the field of building construction auxiliary components, and in particular to a central air-conditioning pipeline welding auxiliary device for building construction. Background Art

[0002] Construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said that it is the process of turning various lines on the design drawings into physical objects at designated locations. During the construction process, people usually install central air-conditioning systems in large buildings. The central air-conditioning system is composed of one or more cold and heat source systems and multiple air conditioning systems. The principle of liquid gasification refrigeration is used to provide the required cooling capacity for the air conditioning system to offset the cold load of the indoor environment. The heating system provides the required heat for the air conditioning system to offset the heat load of the indoor environment. During the installation and construction of the central air-conditioning, the fan located indoors is connected to the outdoor unit through a copper pipe. When welding some copper pipes with larger diameters, the installers will first weld the copper pipes on the ground and then pass them through the wall. When welding copper pipes with larger diameters, one person is usually responsible for holding the copper pipe, and the copper pipe needs to be rotated at a uniform speed during welding, and the other person is responsible for welding. It is not only time-consuming and labor-intensive, but also causes low welding efficiency. At the same time, it is inevitable that the copper pipe will jump radially during the rotation of the copper pipe, resulting in dislocation at the welding seam of the copper pipe, which directly reduces the welding quality. Summary of the invention

[0003] The purpose of the present invention is to provide a central air-conditioning pipe welding auxiliary device for construction in order to solve the above-mentioned problem. The copper pipe is put on the conical block in an upright manner, and then the copper pipe can be driven to rotate at a constant speed by a rotating table for welding. This replaces the method of workers holding the copper pipe to rotate, reduces the workers' work intensity and is conducive to improving welding efficiency. See the following description for details.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a central air-conditioning pipe welding auxiliary device for construction, comprising a base and a rotating table, wherein the base is arranged horizontally, a driving assembly is vertically fixed to the top surface of the base, and the rotating table capable of horizontal rotation is horizontally fixed to the top of the driving assembly, and a conical block is coaxially fixed to the middle of the rotating table;

[0006] A plurality of support plates are vertically and fixedly arranged around the top surface of the rotary table at equal intervals along the circumference. Each support plate is vertically provided with a sliding groove along the radial direction of the conical block, and the sliding groove is a through groove in the horizontal direction. A threaded sleeve is horizontally slidably engaged with each sliding groove along the radial direction of the conical block. End plates are fixedly arranged at the ends of the threaded sleeves close to each other. A limit nut is meshed and connected to the part of the threaded sleeve extending out of the outer end of the sliding groove. A clamping assembly is coaxially meshed and connected to the threaded sleeve, and the clamping assembly passes through the end plate in a sliding fit manner.

[0007] Preferably, the driving assembly includes a driving motor and a motor shaft. The driving motor is fixed on the top surface of the base, and the motor shaft of the driving motor is vertically arranged. The top of the motor shaft is fixedly connected to the horizontally arranged rotary table.

[0008] Preferably, the conical block is a hollow conical structure.

[0009] Preferably, the number of the support plates is four.

[0010] Preferably, the sliding groove is a waist-shaped groove.

[0011] Preferably, the clamping assembly includes a stud and an arc-shaped clamping plate. The stud is coaxially meshed and connected to the threaded sleeve. Locking nuts are meshed and connected to the parts of the stud far from each other and extending out of the outer end of the threaded sleeve. The stud passes through the end plate in a sliding fit manner, and rotary bearings are coaxially fixed to the inner ends of the stud close to each other. A connecting sleeve is fixed to the outer end of the rotary bearing, and the connecting sleeve is fixed to the outside of the vertically arranged arc-shaped clamping plate.

[0012] Preferably, handwheels are coaxially fixed to the outer ends of the studs, and anti-slip patterns are provided on the surfaces of the handwheels.

[0013] Preferably, the inner diameter of the arc-shaped clamping plate is not less than 1.5 times the maximum radius of the conical block.

[0014] Preferably, the arc lengths of the arc-shaped clamping plates are all between one-eighth of a circle and one-quarter of a circle.

[0015] Preferably, the materials of the arc-shaped clamping plates are all hard rubber.

[0016] When using the above-mentioned central air-conditioning pipe welding auxiliary device for construction, the copper pipe is erected and put on the conical block from top to bottom. When the copper pipe descends to the bottom end and presses on the outside of the conical block, it stops and maintains the upright state of the copper pipe. Then, the position height of the clamping assembly is adjusted according to the surface position of the bottom end of the copper pipe on the conical block to ensure that the arc-shaped clamping plate of the clamping assembly can clamp the outside of the copper pipe, and then ensure that the clamping assembly can clamp copper pipes of different diameters to maintain the upright state of the copper pipe. When adjusting, first screw the limit nut Leave the surface of the support plate, then adjust the position height of the arc clamping plate by means of the threaded sleeve sliding vertically along the slide groove. When the arc clamping plate is adjusted to be approximately level with the outer height of the copper tube, stop sliding the threaded sleeve and keep the threaded sleeve stationary. Then, tighten the limit nut against the surface of the support plate to cooperate with the end plate so that the threaded sleeve cannot slide along the slide groove. All the clamping components are adjusted to the same position height in an ascending manner, and then the copper tube can be clamped by multiple clamping components to keep the copper tube in an upright state. The operation method is as follows: one person keeps the copper tube in an upright state, and the other two people simultaneously turn the two studs facing each other in a forward direction to make the arc-shaped clamping plate close to the outside of the copper tube. When the arc-shaped clamping plate is about to touch the outside of the copper tube, one hand should hold the arc-shaped clamping plate to keep the arc-shaped clamping plate in a vertical state, and then continue to turn the two studs in a forward direction until the arc-shaped clamping plates are clamped on the outside of the copper tube. After that, the locking nut should be tightened against the outer end surface of the threaded sleeve to lock the stud from rotating, thereby locking the clamping state of the copper tube, and then press In the above manner, the arc-shaped clamping plates of the other two clamping assemblies are also clamped on the outside of the copper tube respectively, so that the upright copper tube is clamped and maintained in an upright state by bringing the arc-shaped clamping plates of the multiple clamping assemblies close to each other. Then, the driving motor is energized and the motor shaft is used to drive the rotating table to rotate horizontally. The rotating table then drives the copper tube to rotate to smoothly carry out the welding process, preventing radial runout during the rotation of the copper tube and avoiding misalignment at the welding joint of the copper tube, which is beneficial to improving the welding quality.

[0017] The beneficial effects are as follows: 1. The present invention sets the copper tube on the conical block in an upright manner, and then drives the copper tube to rotate at a constant speed through a rotating table for welding, which replaces the method of workers holding the copper tube to rotate, reduces the workers' work intensity and is conducive to improving welding efficiency;

[0018] 2. The vertical copper tube is clamped by bringing the arc-shaped clamping plates of multiple clamping assemblies close to each other to keep the copper tube in an upright state, which prevents radial runout during the rotation of the copper tube and avoids dislocation at the welding seam of the copper tube, which is beneficial to improving the welding quality;

[0019] 3. The position height of the clamping assembly can be adjusted by moving the threaded sleeve vertically along the chute and tightening the locking nut to lock it. In this way, copper pipes with different diameters can be clamped to keep the copper pipes in a vertical state, improving the general application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the front external view of the present invention;

[0022] Figure 2 is the present invention Figure 1 front cross-sectional view;

[0023] Figure 3 is the present invention Figure 1 left view;

[0024] Figure 4 is the present invention Figure 1 top view.

[0025] The description of the reference numerals is as follows:

[0026] 1. Clamping assembly; 101. Arc-shaped clamping plate; 102. Connecting sleeve; 103. Handwheel; 104. Stud; 105. Locking nut; 106. Slewing bearing; 2. Tapered block; 3. Support plate; 301. Chute; 4. Rotary table; 5. Driving assembly; 501. Motor shaft; 502. Driving motor; 6. Base; 7. Threaded sleeve; 701. Locking nut; 702. End plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope protected by the present invention.

[0028] See Figures 1-4As shown, the present invention provides a central air conditioning pipe welding auxiliary device for construction, including a base 6 and a rotating table 4, the base 6 is horizontally arranged, a driving assembly 5 is vertically fixed on the top surface of the base 6, and a rotating table 4 capable of horizontal rotation is horizontally fixed on the top of the driving assembly 5, and a conical block 2 is coaxially fixed in the middle of the rotating table 4. A plurality of support plates 3 are vertically fixed uniformly distributed along the circumference around the top surface of the rotating table 4, each support plate 3 is vertically opened with a slide groove 301 along the radial direction of the conical block 2, and the slide groove 301 is a through groove in the horizontal direction, and the slide groove 301 is horizontally slidably matched with a threaded sleeve 7 along the radial direction of the conical block 2, and the ends of the threaded sleeve 7 close to each other are fixed with an end plate 702, and the part of the threaded sleeve 7 extending out of the outer end of the slide groove 301 is meshed and connected with a limited nut 701, and the threaded sleeve 7 is coaxially meshed and connected with a clamping assembly 1, and the clamping assembly 1 passes through the end plate 702 in a sliding fit.

[0029] As a preferred solution in this case, the driving component 5 includes a driving motor 502 and a motor shaft 501. The driving motor 502 is fixed on the top surface of the base 6, and the motor shaft 501 of the driving motor 502 is vertically arranged. The top of the motor shaft 501 is fixedly connected to the horizontally arranged rotating table 4. Such an arrangement facilitates the rotating table 4 to rotate horizontally at a uniform speed by rotating the motor shaft 501 of the driving motor 502. The conical block 2 is a hollow cone structure. Such an arrangement facilitates the conical block 2 itself to have good performance in use.

[0030] There are four support plates 3, which is convenient for firmly clamping the copper tube by setting four clamping components 1 at the same time. The slide groove 301 is a waist-shaped groove so that the slide groove 301 itself has sufficient length to allow the threaded sleeve 7 to have a wider sliding adjustment range.

[0031] The clamping assembly 1 includes a stud 104 and an arc-shaped clamping plate 101, the stud 104 is coaxially meshed with the threaded sleeve 7, the stud 104 is away from each other and the part extending out of the outer end of the threaded sleeve 7 is meshed with a locking nut 105, the stud 104 passes through the end plate 702 in a sliding fit, and the inner ends of the studs 104 close to each other are coaxially fixed with a slewing bearing 106, the outer end of the slewing bearing 106 is fixed with a connecting sleeve 102, and the connecting sleeve 102 is fixed to the outer side of the vertically arranged arc-shaped clamping plate 101. Such an arrangement makes it convenient to clamp the outer side of the copper tube by driving the arc-shaped clamping plate 101 close to each other through the stud 104 of the clamping assembly 1 to clamp the outer side of the copper tube to maintain the upright state of the copper tube, and it is convenient to quickly lock the stud 104 from rotating by tightening the locking nut 105 to the outer end of the threaded sleeve 7.

[0032] The outer ends of the studs 104 are coaxially fixed with handwheels 103, and anti-slip patterns are provided on the surfaces of the handwheels 103. With such a setting, it is convenient to rotate the studs 104 by applying force with the hand-held handwheels 103 and prevent the handwheels 103 from slipping off during the rotation of the studs 104. The inner diameter of the arc-shaped clamping plates 101 is not less than 1.5 times the maximum radius of the conical block 2. With such a setting, it is convenient to ensure that the arc direction of the arc-shaped clamping plates 101 can adapt to and clamp the outer sides of copper pipes with different diameters.

[0033] The arc lengths of the arc-shaped clamping plates 101 are all between one-eighth of a circle and one-fourth of a circle, so that the arc-shaped clamping plates 101 themselves have a sufficient arc length range to firmly clamp the surface of the copper pipe. The materials of the arc-shaped clamping plates 101 are all hard rubber. Preferably, the arc-shaped clamping plates 101 are fixedly welded to the connecting sleeves 102. With such a setting, it is convenient for the arc-shaped clamping plates 101 to have a certain buffering performance to prevent scratching the surface of the copper pipe.

[0034] With the above structure, when in use, the copper tube is erected and sleeved on the conical block 2 from top to bottom. When the copper tube descends to the point where the bottom end is pressed against the outside of the conical block 2, it stops and maintains the copper tube in an upright state. Then, the position height of the clamping assembly 1 is adjusted according to the surface position of the bottom end of the copper tube on the conical block 2, so as to ensure that the arc-shaped clamping plate 101 of the clamping assembly 1 can clamp the outside of the copper tube, and then ensure that the clamping assembly 1 can clamp copper tubes of different diameters to maintain the copper tube in an upright state. When adjusting, first screw the limit nut 701 away from the surface of the support plate 3, and then pass the threaded sleeve 7 along the sliding surface. The height of the arc clamping plate 101 is adjusted by vertical sliding of the groove 301. When the arc clamping plate 101 is adjusted to be approximately equal to the height of the outer side of the copper tube, the sliding threaded sleeve 7 is stopped and the threaded sleeve 7 is kept stationary. Then, the limit nut 701 is tightened against the surface of the support plate 3 to cooperate with the end plate 702 to prevent the threaded sleeve 7 from sliding along the slide groove 301. All the clamping components 1 are adjusted to the same height in an ascending manner. After that, the copper tube can be clamped by multiple clamping components 1 and kept in an upright state. The operation method is as follows: one person holds the copper tube When the arc clamp 101 is about to touch the outside of the copper tube, one hand should hold the arc clamp 101 to keep the arc clamp 101 in the vertical state, and then continue to turn the two studs 104 forward respectively until the arc clamp 101 is clamped on the outside of the copper tube, and then the locking nut 105 should be tightened against the outer end surface of the threaded sleeve 7 to lock the stud 104 from rotating, thereby locking the clamping state of the copper tube, and then follow the above method. The arc-shaped clamping plates 101 of the other two clamping assemblies 1 are also clamped on the outside of the copper tube respectively, so that the upright copper tube is clamped and maintained in an upright state by the arc-shaped clamping plates 101 of multiple clamping assemblies 1 being close to each other. Then, the driving motor 502 is energized to work and the motor shaft 501 is used to drive the rotating table 4 to rotate horizontally. The rotating table 4 then drives the copper tube to rotate to smoothly carry out the welding process, thereby preventing radial runout of the copper tube during rotation and avoiding misalignment at the welding joint of the copper tube, which is beneficial to improving the welding quality.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for using an auxiliary device for welding central air-conditioning pipes in building construction. The auxiliary device for welding central air-conditioning pipes in building construction includes a base and a rotating table. The base is horizontally arranged, and a driving component is vertically fixed on the top surface of the base. The top end of the driving component is horizontally fixed with a rotating table capable of horizontal rotation. A conical block is coaxially fixed in the middle of the rotating table. A plurality of support plates are vertically fixed around the top surface of the rotating table along the circumference. Each support plate is vertically provided with a chute along the radial direction of the conical block, and the chute is a through groove in the horizontal direction. A threaded sleeve is horizontally slidably matched with each chute along the radial direction of the conical block. End plates are fixed at the ends of the threaded sleeves close to each other. The part of the threaded sleeve extending out of the outer end of the chute is meshed and connected with a limit nut. The threaded sleeve is coaxially meshed and connected with a clamping component, and the clamping component passes through the end plate in a sliding fit manner. The driving component includes a driving motor and a motor shaft. The driving motor is fixed on the top surface of the base, and the motor shaft of the driving motor is vertically arranged. The top of the motor shaft is fixedly connected with the horizontally arranged rotating table. In this way, it is convenient to drive the rotating table to rotate horizontally at a constant speed by rotating the motor shaft of the driving motor. The conical block is a hollow conical structure. In this way, it is convenient for the conical block to have good performance. The number of support plates is four. In this way, it is convenient to firmly clamp the copper pipe by simultaneously arranging four clamping components. The chute is a waist-shaped groove, so that the chute itself has enough length to enable the threaded sleeve to have a relatively wide sliding adjustment range. The clamping component includes a stud and an arc-shaped clamping plate. The stud is coaxially meshed and connected with the threaded sleeve. The parts of the studs far away from each other and extending out of the outer end of the threaded sleeve are meshed and connected with locking nuts. The stud passes through the end plate in a sliding fit manner, and the inner ends of the studs close to each other are coaxially fixed with slewing bearings. The outer end of the slewing bearing is fixed with a connecting sleeve, and the connecting sleeve is fixed on the outside of the vertically arranged arc-shaped clamping plate. In this way, it is convenient to clamp the outside of the copper pipe by driving the arc-shaped clamping plates to approach each other through the studs of the clamping component to keep the copper pipe in an upright state, and it is convenient to quickly lock the stud from rotating by tightening the locking nut to the outer end of the threaded sleeve. Handwheels are coaxially fixed at the outer ends of the studs, and anti-slip patterns are provided on the surface of the handwheels. In this way, it is convenient to rotate the stud by applying force with the hand-held handwheel and prevent the handwheel from slipping off during the rotation of the stud. The inner diameter of the arc-shaped clamping plate is not less than 1.5 times the maximum radius of the conical block. In this way, it is convenient to ensure that the arc direction of the arc-shaped clamping plate can adapt to and clamp the outside of copper pipes with different diameters. The arc lengths of the arc-shaped clamping plates are all between one-eighth of a circle and one-fourth of a circle, so that the arc-shaped clamping plates themselves have an arc length range with enough length to firmly clamp the surface of the copper pipe. The materials of the arc-shaped clamping plates are all hard rubber, and the arc-shaped clamping plates are fixedly welded with the connecting sleeves. In this way, it is convenient for the arc-shaped clamping plates to have a certain buffering performance to prevent scratching the surface of the copper pipe. It is characterized in that When in use, the copper tube is erected and sleeved on the conical block from top to bottom. When the copper tube descends to the bottom end and presses on the outside of the conical block, it stops and maintains the upright state of the copper tube. Then, the position height of the clamping assembly is adjusted according to the surface position of the bottom end of the copper tube on the conical block, so as to ensure that the arc clamping plate of the clamping assembly can clamp the outside of the copper tube, and then ensure that the clamping assembly can clamp copper tubes of different diameters to maintain the upright state of the copper tube. When adjusting, first screw the limit nut to leave the surface of the support plate, and then adjust the position height of the arc clamping plate by sliding the threaded sleeve vertically along the slide groove. When the arc clamping plate is adjusted to be approximately the same height as the outer position of the copper tube, stop sliding the threaded sleeve and keep the threaded sleeve stationary, and then screw the limit nut to press against the surface of the support plate to cooperate with the end plate so that the threaded sleeve cannot slide along the slide groove. All clamping assemblies are adjusted to the same position height in an ascending manner, and then multiple clamping assemblies can be used to clamp the copper tube and maintain the upright state of the copper tube. The operation method is as follows: One person keeps the copper tube in an upright state, and the other two people respectively and simultaneously turn the two studs facing each other in a forward rotation to make the arc-shaped clamping plate close to the outside of the copper tube. When the arc-shaped clamping plate is about to touch the outside of the copper tube, one hand should hold the arc-shaped clamping plate to keep the arc-shaped clamping plate in an upright state, and then continue to turn the two studs in a forward direction respectively until the arc-shaped clamping plates are clamped on the outside of the copper tube, and then the locking nut should be tightened against the outer end surface of the threaded sleeve to lock the stud from rotating, thereby locking the clamping state of the copper tube, and then the arc-shaped clamping plates of the other two clamping assemblies are also clamped on the outside of the copper tube in the above manner, so that the upright copper tube is clamped and kept in an upright state by the arc-shaped clamping plates of multiple clamping assemblies being close to each other; Then the driving motor is powered on and the motor shaft is used to drive the rotating table to rotate horizontally. The rotating table then drives the copper tube to rotate to smoothly carry out the welding process, which prevents radial runout during the rotation of the copper tube and avoids dislocation at the welding seam of the copper tube, which is beneficial to improving the welding quality. The copper tube is placed on the conical block in an upright manner, and then the copper tube can be driven to rotate at a constant speed by the rotating table for welding, which replaces the method of workers holding the copper tube to rotate, reduces the workers' work intensity and is conducive to improving welding efficiency; The vertical copper tube is clamped by bringing the arc-shaped clamping plates of multiple clamping assemblies close to each other to keep the copper tube in an upright state, thereby preventing radial runout of the copper tube during rotation and avoiding misalignment at the welding seam of the copper tube, which is beneficial to improving welding quality; The position height of the clamping assembly can be adjusted by moving the threaded sleeve vertically along the slide groove and tightening the limit nut to lock it, so that copper tubes of different diameters can be clamped to maintain the copper tubes in an upright state, thereby improving the general scope of use of the device.

Images