Building pipeline connecting structure

Abstract

The invention provides a building pipeline connecting structure, and relates to the technical field of pipeline connection, the building pipeline connecting structure comprises a connecting mounting piece, and a movable adjusting piece is mounted on the connecting mounting piece; the movable adjusting piece is used for adjusting the welding position in a sliding mode. A welding detection device is mounted on the movable adjusting part; the welding detection device is used for detecting pipeline welding seam filling; a self-wire-feeding welding gun body is installed on the movable adjusting piece. The self-wire-feeding welding gun main body is used for detecting the deviation of a welding wire; the building pipeline connecting structure can be used for detecting the quality of a welding seam, can facilitate real-time understanding of workers in the welding process, is not affected by the length of the pipeline, improves the welding flatness of the inner side of the pipeline, and solves the problems that an existing building pipeline connecting structure cannot conveniently and automatically detect the filling effect of the welding seam on the inner side of the pipeline, easily affects the flatness of the inner side of the pipeline and affects the connecting strength.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection, and in particular to a building pipeline connection structure. Background Art

[0002] In the construction industry, pipeline welding is widely used in the connection of various pipeline systems. The welding connection heats the pipeline and welding material to a molten state, and then connects the two together to form a firm and durable interface. This connection method not only has a high degree of sealing and can effectively prevent leakage, but also has high joint strength and tightness. It does not require frequent maintenance after use. The commonly used connection method currently uses manual handheld welding torches. The current construction pipeline connection structure is not convenient for automatic detection of the weld filling effect on the inside of the pipeline, which is easy to affect the flatness of the inside of the pipeline and the connection strength. For long-distance pipelines, it is not convenient for manual work to know the welding quality in real time. At the same time, it is not convenient to adjust the local prestress when the pipeline is docked. After the subsequent welding is completed, factors such as the dead weight of the pipeline sink at the weld, which is easy to cause cracks at the weld. At the same time, it is not convenient for the staff to maintain the welding wire accuracy in real time, and the welding wire deviation is easy to affect the quality of the weld path. Summary of the invention

[0003] The disclosed embodiment relates to a building pipe connection structure, wherein a welding detection device can be used to detect the quality of welds, so that workers can understand the quality in real time during the welding process. The device is not affected by the length of the pipe and improves the welding flatness of the inner side of the pipe. This solves the problem that the current building pipe connection structure is not convenient for automatically detecting the filling effect of the weld on the inner side of the pipe, which easily affects the flatness of the inner side of the pipe and the connection strength.

[0004] In a first aspect of the present disclosure, a building pipeline connection structure is provided, which specifically includes a connecting mounting piece, on which a movable adjustment piece is installed; the movable adjustment piece is used to slide and adjust the welding position; the movable adjustment piece is installed with a welding detection device; the welding detection device is used to detect the pipe weld filling; the movable adjustment piece is installed with a self-feeding welding gun body; the self-feeding welding gun body is used to detect welding wire deviation; the movable adjustment piece is installed with an alarm prompt piece; the alarm prompt piece electrically connects the self-feeding welding gun body and the welding detection device; a prestressed pulling piece is installed on the connecting mounting piece; the prestressed pulling piece is used to apply prestress to the pipeline; the connecting mounting piece includes: a clamping ring, a slide groove and a pulling distance adjusting bolt, the clamping ring is provided with four, the four clamping rings are grouped in pairs, and the two groups of clamping rings are respectively connected by bolts and nuts; the four clamping rings are used to sleeve and clamp the pipeline; the four clamping rings are respectively provided with slide grooves on their sides.

[0005] In at least some embodiments, the connecting mounting member further includes: pulling and adjusting bolts, four pulling and adjusting bolts are rotatably mounted on the two clamping rings on the same side, and the four pulling and adjusting bolts are threadedly connected to the other two clamping rings.

[0006] In at least some embodiments, the movable adjustment member includes: a movable slider, a ball, a pressure detection sliding column, a pressure sensor, a fitting rubber block and an air blow pipe, wherein the movable slider is slidably installed on the inner side of the slide groove on the same side; two balls are embedded on both sides of the movable slider, and the four balls are respectively located in the slide groove on the same side; a pressure detection sliding column is slidably installed on the side of the movable slider; the pressure detection sliding column is located on the inner side of the slide groove on the same side; a pressure sensor is fixedly installed inside the movable slider, and the end of the pressure sensor is fitted to the pressure detection sliding column; the pressure sensor is externally connected to a display; a fitting rubber block is fixedly installed on the bottom of the movable slider, and the fitting rubber block is located between the welds; the air blow pipe is fixedly installed on the movable slider; the air blow pipe is used to promote the molten pool to penetrate the weld; the air blow pipe is located on the inner side of the fitting rubber block.

[0007] In at least some embodiments, the welding detection device includes: an arc-shaped slider, a positioning bolt, a detection spring and a primary contact, wherein the arc-shaped slider is slidably mounted on a movable slider; a detection spring is fixedly mounted on the bottom of the arc-shaped slider; a positioning bolt is inserted into the arc-shaped slider, and the positioning bolt is threadedly connected to the movable slider; a primary contact is fixedly mounted on the top of the detection spring; and the primary contact is insulated from the detection spring.

[0008] In at least some embodiments, the welding detection device also includes: an in-place spring clip, which is fixedly mounted on the end of the arc-shaped slider; the in-place spring clip is an arc-shaped spring clip structure; the in-place spring clip is located between the pipe welds; the in-place spring clip is used to fit the weld path; the distance between the bottom of the in-place spring clip and the detection spring clip is greater than the distance between the bottom of the in-place spring clip and the primary contact.

[0009] In at least some embodiments, the self-feeding welding gun body includes: a welding gun head, a support column and a welding wire terminal plate, the welding gun head is obliquely sleeved on a movable slider; a circle of support columns is fixedly installed on the end of the welding gun head; welding wire terminal plates are fixedly installed on the inner sides of the circle of support columns, and the welding wire terminal plates are all spring sheet structures; the welding wire terminal plates are used to fit the welding wire.

[0010] In at least some embodiments, the self-feeding welding gun body further includes: an offset fitting ring, which is fixedly mounted on the bottom of a circle of the support columns; the offset fitting ring is used to detect the offset of the welding wire.

[0011] In at least some embodiments, the alarm prompt component includes: a two-stage indicator light and an alarm light, wherein two two-stage indicator lights are provided, and the two two-stage indicator lights are respectively fixedly mounted on a movable slider; an alarm light is fixedly mounted on the movable slider; the detection spring piece and the in-position spring piece, the in-position spring piece and the primary contact are respectively connected in series with the two two-stage indicator lights for a power supply; the two two-stage indicator lights are respectively used to indicate the quality of the weld; the alarm light is electrically connected to the welding wire terminal plate and the offset bonding ring.

[0012] In at least some embodiments, the prestressed pulling member includes: a pulling ring and a pulling threaded rod, and there are four pulling rings, and the four pulling rings are grouped in pairs, and the two groups of pulling rings are connected by bolts and nuts, and the two groups of pulling rings are used to be sleeved and clamped on the pipe; the two groups of pulling rings are respectively located on both sides of the two groups of clamping rings; six pulling threaded rods are respectively threadedly connected to the two groups of pulling rings, and handles are respectively provided at the ends of the six pulling threaded rods.

[0013] In at least some embodiments, the prestressed pulling member further includes: a pulling rope, wherein the ends of the twelve pulling threaded rods are respectively fixedly mounted with pulling ropes, and the ends of the pulling ropes are connected to both sides of the two groups of clamping rings; the pulling ropes are used to adjust the pressure consistency of the pipeline weld.

[0014] The present invention provides a building pipeline connection structure, which has the following beneficial effects:

[0015] The welding detection device used in the present invention can be used to detect the quality of the welding path, so as to avoid the problem that the welding wire in the weld cannot be completely filled or is over-filled due to the high temperature and poor wire feeding accuracy during welding. It can facilitate the staff to operate the welding gun to improve the welding quality and improve the flatness of the inner side of the pipe wall. The structure can utilize the elastic fit of the spring piece in place on the welding path, and timely prompt when poor accuracy occurs. The structure is more reasonable, avoiding the problem that the traditional long-distance pipelines in buildings are difficult to observe through endoscopes.

[0016] In addition, the movable adjustment parts can be used for sliding displacement adjustment on the outside of the pipeline, and the operation is stable. The connecting mounting parts are used to facilitate quick docking and positioning of the pipeline. The pressure sensor can be used to detect the parallelism between the two sets of clamping rings with higher accuracy. At the same time, it is also used to detect the deformation of the weld after cooling after the subsequent welding is completed to ensure that the welding meets the standards. The prestressed pulling parts can be used to perform prestress compensation on pipelines with horizontal drops when welding pipelines, which can reduce the subsidence at the weld and improve the connection reliability of the pipe welding after welding is completed.

[0017] In addition, the use of a self-feeding welding gun body can detect the skew of the wire coming out of the welding gun head to prevent the skewed wire from affecting the welding accuracy. This structure detection is more direct and accurate, and it can prevent the bending of the welding wire caused by factors such as fast movement and too fast wire coming out from going undetected, improve the straightness of the weld path, ensure the welding quality, and use the offset fitting ring detection method, which has a compact structure and direct detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of a building pipeline connection structure of the present application is shown;

[0022] Figure 2 This application shows Figure 1 A magnified view of the structure of the middle A area;

[0023] Figure 3 A schematic diagram showing the structure of the movable adjustment member of the present application is shown;

[0024] Figure 4 A cross-sectional view of the welding detection device structure of the present application is shown;

[0025] Figure 5 A schematic diagram showing the overall structure of the prestressed tensioning member of the present application is shown;

[0026] Figure 6 A cross-sectional view showing the overall structure of the movable adjustment member of the present application;

[0027] Figure 7 This application shows Figure 4 A magnified view of the structure of the middle F region;

[0028] Figure 8 A schematic diagram showing the bottom structure of the movable adjustment member of the present application is shown;

[0029] Fig. 9 This application shows Figure 5 A magnified view of the structure of the middle G region;

[0030] Fig.10 This application shows Figure 3 Enlarged view of the structure of the middle J region.

[0031] Reference numerals list

[0032] 1. Connecting and mounting parts; 101. Clamping ring; 1011. Slide groove; 102. Pulling and adjusting bolt; 102. Pulling and adjusting bolt; 2. Moving and adjusting parts; 201. Moving slider; 2011. Ball bearing; 202. Pressure detection sliding column; 2021. Pressure sensor; 203. Fitting rubber block; 204. Blowing pipe; 3. Welding detection device; 301. Arc slider; 3011. Positioning bolt; 302. Detection spring; 303. Primary contact; 304. In-place spring; 4. Self-feeding welding gun body; 401. Welding gun head; 4011. Support column; 402. Welding wire connecting plate; 403. Offset fitting ring; 5. Alarm prompt part; 501. Two-stage indicator light; 502. Alarm light; 6. Prestressed pulling part; 601. Pulling ring; 602. Pulling threaded rod; 603. Traction rope. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1 to 10 :

[0035] The present invention proposes a building pipeline connection structure, including a connection installation part 1, on which a movable adjustment part 2 is installed; the movable adjustment part 2 is used to slide and adjust the welding position; a welding detection device 3 is installed on the movable adjustment part 2; the welding detection device 3 is used to detect the pipe weld filling; a self-feeding welding gun body 4 is installed on the movable adjustment part 2; the self-feeding welding gun body 4 is used to detect the welding wire deviation; an alarm prompt part 5 is installed on the movable adjustment part 2; the alarm prompt part 5 is electrically connected to the self-feeding welding gun body 4 and the welding detection device 3; a prestressed pulling part 6 is installed on the connection installation part 1; the prestressed pulling part 6 is used to apply prestress to the pipeline; the connection installation part 1 includes: a clamping ring 101, a slide groove 1011 and a pulling distance adjusting bolt 102, the clamping ring 101 is provided with four, the four clamping rings 101 are in a group of two, and the two groups of clamping rings 101 are respectively connected by bolts and nuts; the four clamping rings 101 are used to sleeve and clamp the pipeline; the sides of the four clamping rings 101 are respectively provided with slide grooves 1011.

[0036] In the embodiment of the present disclosure, the connecting mounting member 1 further includes: a pulling distance adjusting bolt 102, four pulling distance adjusting bolts 102 are rotatably mounted on the two clamping rings 101 on the same side, and the four pulling distance adjusting bolts 102 are threadedly connected to the other two clamping rings 101; the moving adjusting member 2 includes: a moving slider 201, a ball 2011, a pressure detection sliding column 202, a pressure sensor 2021, a fitting rubber block 203 and a blowing pipe 204, and the moving slider 201 is slidably mounted on the inner side of the slide groove 1011 on the same side; two ball 2011 are respectively embedded on both sides of the moving slider 201 , and the four balls 2011 are respectively located inside the slide groove 1011 on the same side; a pressure detection slide column 202 is slidably installed on the side of the moving slider 201; the pressure detection slide column 202 is located inside the slide groove 1011 on the same side; a pressure sensor 2021 is fixedly installed inside the moving slider 201, and the end of the pressure sensor 2021 is attached to the pressure detection slide column 202; the pressure sensor 2021 is externally connected to a display; a fitting rubber block 203 is fixedly installed at the bottom of the moving slider 201, and the fitting rubber block 203 is located between the welds; the air blow pipe 204 is fixedly installed on the moving slider 201 The air blowing pipe 204 is used to promote the penetration of the molten pool into the weld. The air blowing pipe 204 is located on the inner side of the fitting rubber block 203. The movable adjustment member 2 can be used for sliding displacement adjustment on the outer side of the pipe. The operation is stable. At the same time, the connecting mounting member 1 is used to facilitate rapid docking of the pipe positioning. The operation is simple and convenient. The pressure sensor 2021 can be used to detect the parallelism between the two sets of clamping rings 101 with higher accuracy. At the same time, it is also used to detect the deformation of the weld after cooling after the subsequent welding is completed to ensure that the welding meets the standards. The structure is simple and convenient to operate. It is connected by bolts and nuts. The clamping ring 101 is used to sleeve and clamp the pipe. The pulling and adjusting distance bolt 102 can be threaded into the clamping ring 101 on the same side to adjust the weld. During the process, the pressure sensor 2021 can be used to sense the pressure to keep the ball 2011 able to roll normally without excessive pressure. As the moving slider 201 drives the welding gun head 401 to move for welding, when the welding gun head 401 approaches the pulling and adjusting distance bolt 102, the weld path has been formed and it can be rotated and disassembled. Because four pulling and adjusting distance bolts 102 are provided, disassembling a single pulling and adjusting distance bolt 102 will not affect the welding accuracy of the weld.

[0037] In the embodiment of the present disclosure, the welding detection device 3 includes: an arc-shaped slider 301, a positioning bolt 3011, a detection spring piece 302 and a primary contact 303, the arc-shaped slider 301 is slidably installed on the moving slider 201; a detection spring piece 302 is fixedly installed at the bottom of the arc-shaped slider 301; a positioning bolt 3011 is inserted on the arc-shaped slider 301, and the positioning bolt 3011 is threadedly connected to the moving slider 201; a primary contact 303 is fixedly installed on the top of the detection spring piece 302; the primary contact 303 and the detection spring piece 302 are insulated; the welding detection device 3 also includes: an in-place spring piece 304, which is fixedly installed at the end of the arc-shaped slider 301; the in-place spring piece 304 is an arc-shaped spring piece structure; the in-place spring piece 304 is located between the pipe welds; the in-place spring piece 304 is used to fit the welding path; the distance between the bottom of the in-place spring piece 304 and the detection spring piece 302 is greater than the distance between the bottom of the in-place spring piece 304 and the primary contact 3 03 spacing, the welding detection device 3 can be used to detect the quality of the welding path, avoid the problem that the welding wire in the weld cannot be completely filled or over-filled due to high temperature and poor wire drawing accuracy during welding, which can facilitate the staff to operate the welding gun to improve the welding quality, improve the flatness of the inner side of the pipe wall, and have a more reasonable structure. This structure can use the elastic fit of the in-place spring piece 304 on the welding path, and timely prompt when poor accuracy occurs. The structure is more reasonable and avoids the problem that the traditional long-distance pipelines in buildings are difficult to observe through an endoscope. The structure is simple and reasonable. In actual welding work, as the moving slider 201 moves, it can drive the welding gun head 401 to weld at the weld, and at the same time drive the in-place spring piece 304 to fit on the bottom of the welding path. When the in-place spring piece 304 is detected by the welding path, the two-level indicator light 501 can light up to prompt, and the primary contact 303 cooperates with the detection spring piece 302 to achieve two-level detection. The structure is simple and reasonable.

[0038] In the disclosed embodiment, the self-feeding welding gun body 4 includes: a welding gun head 401, a support column 4011 and a welding wire connection plate 402, the welding gun head 401 is obliquely sleeved on the movable slider 201; a circle of support columns 4011 is fixedly installed on the end of the welding gun head 401; the inner sides of the circle of support columns 4011 are respectively fixedly installed with welding wire connection plates 402, and the welding wire connection plates 402 are all spring structures; the welding wire connection plates 402 are used to fit the welding wire; the self-feeding welding gun body 4 also includes: an offset fitting ring 403, the offset fitting ring 403 is fixedly installed at the bottom of the circle of support columns 4011; the offset fitting ring 403 is used to detect the offset of the welding wire; the alarm prompt part 5 includes: a two-stage indicator light 501 and an alarm light 502, the two-stage indicator light 501 is provided with two, and the two two-stage indicator lights 501 are respectively fixedly installed on the movable slider 201; the shift An alarm light 502 is fixedly installed on the movable slider 201; the detection spring piece 302 and the in-position spring piece 304, the in-position spring piece 304 and the primary contact 303 are respectively connected in series with the two two-stage indicator lights 501 with a power supply; the two two-stage indicator lights 501 are respectively used to indicate the quality of the weld; the alarm light 502 is electrically connected to the welding wire terminal 402 and the offset fitting ring 403. The self-feeding welding gun body 4 can be used to detect the skew of the wire output of the welding gun head 401 to avoid the skewed wire output affecting the welding accuracy. The detection of this structure is more direct and accurate, and the bending of the welding wire caused by fast travel, too fast wire output and other factors is avoided. It improves the straightness of the welding path and ensures the welding quality. The structure uses the offset fitting ring 403 detection method, the structure is compact, the detection is accurate and direct, and the alarm prompt can be directly performed in conjunction with the alarm prompt member 5, which is more intuitive.

[0039] Embodiment 2, on the basis of embodiment 1, the prestressed pulling member 6 comprises: a pulling ring 601 and a pulling threaded rod 602, the pulling ring 601 is provided with four, the four pulling rings 601 are grouped in pairs, the two groups of pulling rings 601 are connected by bolts and nuts, and the two groups of pulling rings 601 are respectively used for sleeve clamping on the pipeline; the two groups of pulling rings 601 are respectively located on both sides of the two groups of clamping rings 101; six pulling threaded rods 602 are respectively threadedly connected to the two groups of pulling rings 601, and handles are respectively provided at the ends of the six pulling threaded rods 602; the prestressed pulling member 6 also comprises: a traction rope 603, the ends of the twelve traction threaded rods 602 are respectively fixedly installed with the traction rope 603, and the ends of the traction rope 603 are connected to both sides of the two groups of clamping rings 101; the traction rope 60 3 is used to adjust the pressure consistency of the pipeline weld. The prestressed pulling member 6 can be used to prestress the pipeline with a horizontal drop when welding the pipeline, which can reduce the sinking at the weld and improve the connection reliability of the pipe welding after welding. When the weld is completely cooled, the weld quality is improved. The prestressed pulling member 6 is a detachable structure, which is convenient for reuse after disassembly. Before welding, according to the pipeline conditions, such as the sinking at the pipeline welding, the pulling threaded rod 602 located at the top can be properly rotated and tightened. The top of the pipeline can be pulled by the pulling rope 603, which can facilitate the lifting of the top of the pipeline and promote the improvement of the weld accuracy. After the weld is welded, each pulling threaded rod 602 can be independently adjusted according to the pressure change, without the need for cumbersome support adjustment at both ends of the pipeline.

[0040] The working principle of this embodiment is as follows: first, four clamping rings 101 are connected by bolts and nuts, and the sleeves are clamped on the two ends of the pipes to be welded. The pulling and adjusting bolts 102 are screwed into the clamping rings 101 on the same side to adjust the weld. During the process, the pressure sensor 2021 can be used to sense the pressure to keep the ball 2011 rolling normally without excessive pressure. As the moving slider 201 drives the welding gun head 401 to move for welding, when the welding gun head 401 approaches the pulling and adjusting bolts 102, the weld path has been formed and can be rotated and disassembled. In actual welding work, as the moving slider 201 moves, the welding gun head 401 can be driven to weld at the weld. Drive the in-place spring piece 304 to fit the bottom of the welding path. When the in-place spring piece 304 is fitted by the welding path, if the flux in the welding path cannot fill the weld, there will be a gap between the in-place spring piece 304 and the primary contact 303, and the circuit will be broken, and the light will not be on for prompting. Similarly, if the amount of flux filling in the weld is sufficient to be flush with the inner wall of the pipe, the welding path will squeeze the in-place spring piece 304 to fit the primary contact 303. At this time, the two-stage indicator light 501 corresponding to the primary contact 303 will light up for prompting. Similarly, when the welding path is too convex, it protrudes from the inner wall of the pipe. At this time, the convex welding path will squeeze the in-place spring piece 304. At this time, the in-place spring piece 304 compresses the primary contact 303, and the primary contact After point 303 collapses, the spring piece 304 in place will fit the end of the detection spring piece 302. At this time, the two-stage indicator light 501 connected in series with the detection spring piece 302 can light up to prompt. As the moving slider 201 moves, when the moving slider 201 moves to the weld joint, the positioning bolt 3011 can be rotated and removed, and the arc slider 301 can be pulled out to avoid the arc slider 301 affecting the weld joint. Because the remaining welding path is short, the established welding speed, temperature and other parameters are maintained to connect the welding paths, which will not affect the uniformity of pipeline welding. During the wire welding process of the welding gun head 401, the welding wire connecting piece 402 is elastically attached to the welding wire in real time. If the end of the welding wire deviates When the offset fitting circle 403 is moved and touches the offset fitting circle 403, the conductive property of the welding wire itself will turn on the alarm light 502 to give an alarm prompt. Before welding, according to the pipeline conditions, for example, there is a subsidence at the pipeline welding point, the pulling threaded rod 602 at the top can be properly rotated and tightened, and the top of the pipeline can be pulled by the pulling rope 603 to facilitate the lifting of the top of the pipeline and promote the improvement of weld accuracy. After the weld is completed, the slider 201 can be slid to drive the pressure sensor 2021 to move and detect the pressure change between the clamping rings 101 on both sides of the weld. The pulling threaded rods 602 can be independently adjusted according to the pressure change to adjust the force uniformity at the weld.

[0041] In this article, there are a few points to note:

[0042] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0043] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0044] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A building pipeline connection structure, comprising a connection mounting member (1), wherein a movable adjustment member (2) is mounted on the connection mounting member (1); characterized in that: The movable adjustment member (2) is used for slidingly adjusting the welding position; a welding detection device (3) is installed on the movable adjustment member (2); the welding detection device (3) is used for detecting the filling of the pipeline weld; A self-feeding welding gun body (4) is installed on the movable adjustment member (2); the self-feeding welding gun body (4) is used to detect welding wire deviation; An alarm prompting member (5) is installed on the movable adjustment member (2); the alarm prompting member (5) is electrically connected to the self-feeding welding gun body (4) and the welding detection device (3); A prestressed pulling member (6) is installed on the connecting mounting member (1); the prestressed pulling member (6) is used to apply prestress to the pipeline; The connecting mounting member (1) comprises: a clamping ring (101), a slide groove (1011) and a pulling distance adjusting bolt (102); the clamping ring (101) is provided with four, the four clamping rings (101) are grouped in pairs, and the two groups of clamping rings (101) are respectively connected by bolts and nuts; the four clamping rings (101) are used for sleeve connection and clamping pipes; and the sides of the four clamping rings (101) are respectively provided with slide grooves (1011).

2. A building pipe connection structure according to claim 1, characterized in that: The connecting mounting member (1) further comprises: a pulling distance adjusting bolt (102), four pulling distance adjusting bolts (102) being rotatably mounted on the two clamping rings (101) on the same side, and the four pulling distance adjusting bolts (102) being threadedly connected to the other two clamping rings (101).

3. A building pipe connection structure according to claim 1, characterized in that: The movable adjustment member (2) comprises: a movable slider (201), a ball bearing (2011), a pressure detection sliding column (202), a pressure sensor (2021), a fitting rubber block (203) and an air blowing tube (204); the movable slider (201) is slidably mounted inside a slide groove (1011) on the same side; two ball bearings (2011) are respectively embedded on both sides of the movable slider (201), and the four ball bearings (2011) are respectively located inside the slide groove (1011) on the same side; a pressure detection sliding column (202) is slidably mounted on the side of the movable slider (201); the pressure detection sliding column (202) is located The movable slider (201) is provided with a pressure sensor (2021) fixedly mounted inside the movable slider (201), and the end of the pressure sensor (2021) is fitted to the pressure detection sliding column (202); the pressure sensor (2021) is externally connected to a display; a fitting rubber block (203) is fixedly mounted on the bottom of the movable slider (201), and the fitting rubber block (203) is located between the welds; the air blowing pipe (204) is fixedly mounted on the movable slider (201); the air blowing pipe (204) is used to promote the penetration of the molten pool into the weld; the air blowing pipe (204) is located on the inner side of the fitting rubber block (203).

4. A building pipe connection structure according to claim 3, characterized in that: The welding detection device (3) comprises: an arc-shaped slider (301), a positioning bolt (3011), a detection spring piece (302) and a primary contact (303); the arc-shaped slider (301) is slidably mounted on a movable slider (201); a detection spring piece (302) is fixedly mounted on the bottom of the arc-shaped slider (301); a positioning bolt (3011) is inserted into the arc-shaped slider (301), and the positioning bolt (3011) is threadedly connected to the movable slider (201); a primary contact (303) is fixedly mounted on the top of the detection spring piece (302); and the primary contact (303) and the detection spring piece (302) are insulated from each other.

5. A building pipe connection structure according to claim 4, characterized in that: The welding detection device (3) further comprises: an in-place spring sheet (304), wherein the in-place spring sheet (304) is fixedly mounted on the end of the arc-shaped slider (301); the in-place spring sheet (304) is an arc-shaped spring sheet structure; the in-place spring sheet (304) is located between the pipe welds; the in-place spring sheet (304) is used to fit the welding path; and the distance between the bottom of the in-place spring sheet (304) and the detection spring sheet (302) is greater than the distance between the bottom of the in-place spring sheet (304) and the primary contact (303).

6. A building pipe connection structure according to claim 5, characterized in that: The self-feeding welding gun body (4) comprises: a welding gun head (401), a support column (4011) and a welding wire connection plate (402); the welding gun head (401) is obliquely sleeved on the movable slider (201); a circle of support columns (4011) is fixedly installed at the end of the welding gun head (401); welding wire connection plates (402) are fixedly installed on the inner side of a circle of support columns (4011), and the welding wire connection plates (402) are all spring sheet structures; the welding wire connection plates (402) are used for bonding welding wires.

7. A building pipe connection structure according to claim 6, characterized in that: The self-feeding welding gun body (4) further comprises: an offset fitting ring (403), wherein the offset fitting ring (403) is fixedly mounted at the bottom of a circle of support columns (4011); the offset fitting ring (403) is used to detect welding wire offset.

8. A building pipe connection structure according to claim 7, characterized in that: The alarm prompting member (5) comprises: a two-stage indicator light (501) and an alarm light (502); the two-stage indicator lights (501) are provided with two, and the two two-stage indicator lights (501) are respectively fixedly mounted on the movable slider (201); the alarm light (502) is fixedly mounted on the movable slider (201); the detection spring piece (302) and the in-position spring piece (304), the in-position spring piece (304) and the primary contact (303) are respectively connected in series with the two two-stage indicator lights (501) to a power supply; the two two-stage indicator lights (501) are respectively used to indicate the quality of the weld; the alarm light (502) is electrically connected to the welding wire connecting piece (402) and the offset fitting ring (403).

9. A building pipe connection structure according to claim 1, characterized in that: The prestressed pulling member (6) comprises: a pulling ring (601) and a pulling threaded rod (602). There are four pulling rings (601), and the four pulling rings (601) are grouped in pairs. The two groups of pulling rings (601) are connected by bolts and nuts, respectively, and the two groups of pulling rings (601) are respectively used for sleeve clamping on the pipeline; the two groups of pulling rings (601) are respectively located on both sides of the two groups of clamping rings (101); six pulling threaded rods (602) are respectively threadedly connected to the two groups of pulling rings (601), and handles are respectively provided at the ends of the six pulling threaded rods (602).

10. A building pipe connection structure according to claim 9, characterized in that: The prestressed pulling member (6) further comprises: a pulling rope (603), the ends of the twelve pulling threaded rods (602) are respectively fixedly mounted with a pulling rope (603), and the ends of the pulling rope (603) are connected to both sides of the two groups of clamping rings (101); the pulling rope (603) is used to adjust the pressure consistency of the pipeline weld.

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