Quick connecting device for splicing galvanized pipes

Abstract

The utility model discloses a quick connecting device for splicing galvanized pipes, which belongs to the technical field of building electrical construction and comprises a galvanized pipe splicing assembly, a galvanized pipe connecting assembly, a galvanized pipe connecting assembly and a galvanized pipe connecting assembly. The splicing positioning assembly comprises a U-shaped clamping rod horizontally arranged on the peripheral side of the splicing connecting pipe in a covering mode and positioning clamping pieces moving telescopically on the inner walls of the two sides of the U-shaped clamping rod correspondingly, and the two positioning clamping pieces are clamped to the outer wall of the peripheral side of the splicing connecting pipe in a matched mode; a clamp component; an L connecting rod; when the U-shaped clamping rod drives the two positioning clamping pieces to be clamped on the peripheral side of the splicing pipe, the hoop component, the positioning clamping pieces and the splicing pipe are coaxial, so that when the first galvanized pipe and the second galvanized pipe are spliced into the splicing pipe, the first galvanized pipe and the second galvanized pipe are not inclined, staggered and blocked, and splicing is smooth and accurate under coaxial positioning. According to the utility model, the galvanized pipe is ensured not to incline and misplace in the splicing process, so that the splicing process is smoother and more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of building electrical construction, and particularly relates to a quick connection device for splicing galvanized pipes. Background Art

[0002] In building electrical engineering, galvanized pipes, as a commonly used wire and cable protection sleeve, are widely used in the laying of various electrical circuits. However, during the actual construction process, the splicing of galvanized pipes often faces many challenges. The traditional splicing methods for galvanized pipes are butt welding of pipelines or wrapping and welding with large-sized pipe sleeves, which are extremely prone to the phenomena of weld beads and misaligned teeth, seriously affecting the construction quality. Therefore, splicing joints are generally used in the market to connect galvanized pipes. However, during the splicing process of the current splicing joints, if the positioning is inaccurate, it will cause the galvanized pipes to be misaligned, thereby affecting the layout of the entire electrical circuit, and it is very difficult to ensure high-precision alignment for each splicing.

[0003] After retrieval, for example, the existing Chinese patent publication number: CN117704172A, a galvanized pipe convenient for splicing, includes a galvanized pipe body. One end of the galvanized pipe body is fixedly connected with a first splicing ring, and the other end is fixedly connected with a second splicing ring. When adjacent galvanized pipe bodies are connected end to end, the adjacent first splicing ring and the second splicing ring are spliced with each other, and a connecting component for connecting the two is provided between the mutually spliced first splicing ring and the second splicing ring.

[0004] The cited patent literature also has the same problem. During the splicing process of the splicing joint, if the positioning is inaccurate, it will cause the galvanized pipes to be misaligned, thereby affecting the layout of the entire electrical circuit. It is very difficult to ensure high-precision alignment for each splicing by traditional methods. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a quick connection device for splicing galvanized pipes to solve the problems raised in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A quick connection device for splicing galvanized pipes, comprising:

[0007] A galvanized pipe splicing assembly, buried in the building floor slab for later wire and cable passages, the galvanized pipe splicing assembly includes a first galvanized pipe, a second galvanized pipe, and a splicing connecting pipe spliced between the first galvanized pipe and the second galvanized pipe;

[0008] A splicing positioning component, including a U-shaped clamping rod horizontally sleeved on the periphery of the splicing connecting pipe and positioning clamping members respectively telescopically moving on the inner walls of both sides of the U-shaped clamping rod, and the two positioning clamping members are fitted and clamped on the outer wall periphery of the splicing connecting pipe;

[0009] A clamp component is arranged above or below the U-shaped clamping rod and is used to coaxially clamp the first galvanized pipe above or the second galvanized pipe below with the splicing connecting pipe;

[0010] An L-shaped connecting rod has one end fixed to the outer wall of the U-shaped clamping rod, and the other end of the L-shaped connecting rod is fixedly connected to the clamp component. When the U-shaped clamping rod drives the two positioning clamping members to clamp around the splicing connecting pipe, for the stable limit of the U-shaped clamping rod, the clamp component is driven by the L-shaped connecting rod to be clamped around the first galvanized pipe or the second galvanized pipe. The clamp component, the positioning clamping members and the splicing connecting pipe are coaxial, so that when the first galvanized pipe and the second galvanized pipe are spliced into the splicing connecting pipe, they will not be inclined, misaligned or stuck, but are spliced smoothly and accurately under the coaxial positioning.

[0011] Preferably in this solution, a recessed portion is integrally formed at the middle position on the periphery of the splicing connecting pipe, and the recessed portion protrudes towards the inner cavity of the splicing connecting pipe. Chamfered connecting portions are provided at the opposite ends of the first galvanized pipe and the second galvanized pipe in the inner cavity of the splicing connecting pipe.

[0012] Preferably in this solution, when the first galvanized pipe and the second galvanized pipe are spliced, the two chamfered connecting portions are fitted to both sides of the inner wall of the recessed portion, so that the chamfered connecting portions are in fitting contact with the inner wall of the recessed portion, preventing the cable line from being scratched by the inside of the recessed portion or the ends of the first galvanized pipe and the second galvanized pipe.

[0013] Preferably in this solution, a travel chute is opened inside the U-shaped clamping rod, and a double-headed screw rod is rotatably installed in the travel chute. External thread paths with opposite thread directions are provided at both ends on the periphery of the double-headed screw rod.

[0014] Preferably in this solution, moving connecting rods are threadedly penetrated and connected to the peripheries of the two external thread paths, and one end of the double-headed screw rod extends to the outside of the U-shaped clamping rod and is fixedly connected to a knob member.

[0015] Preferably in this solution, travel limit rings are symmetrically welded to the peripheries of the two external thread paths and at the opposite ends on the periphery of the double-headed screw rod. The two ends of the double-headed screw rod in the smooth rod portion are connected to the U-shaped clamping rod through sealed bearings.

[0016] Preferably in this solution, connecting screw rods are fixedly connected to the backs of the two positioning clamping members, and the opposite ends of the two connecting screw rods are threadedly connected to the adjacent moving connecting rods together.

[0017] Preferably in this solution, positioning cross bars are welded to the opposite side surfaces of the two moving connecting rods, and the ends of the two positioning cross bars far from the moving connecting rods all penetrate and extend to the outside of the U-shaped clamping rod.

[0018] Preferably, in this solution, the clamp component includes two arc-shaped clamp plates symmetrically spliced together. On both sides of the relative ends of the two arc-shaped clamp plates, connecting ear plates are integrally connected, and adjacent connecting ear plates are connected together through locking screws.

[0019] Preferably, in this solution, one end of the L-link away from the U-shaped clamping rod is fixedly connected to the back of one of the arc-shaped clamp plates, and a handle is fixed to the back of the U-shaped clamping rod.

[0020] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0021] For the quick connection device for splicing galvanized pipes, when the positioning and clamping member clamps the splicing connecting pipe, the clamp component is driven by the L-link and can accurately be coaxially clamped with the first galvanized pipe or the second galvanized pipe. This coaxial positioning method ensures that the galvanized pipes will not be inclined or misaligned during the splicing process, making the splicing process smoother and more accurate.

[0022] Through the design of the U-shaped clamping rod and the positioning and clamping member, the splicing connecting pipe can be quickly fixed in a predetermined position, avoiding the cumbersome process of traditional manual alignment. The positioning and clamping member can telescopically move on the inner walls of both sides of the U-shaped clamping rod and can flexibly adjust the clamping force according to the actual size of the splicing connecting pipe to ensure firm clamping and meet the use of splicing connecting pipes of different sizes.

[0023] The clamp component and the positioning and clamping member work together to ensure the fixation of the splicing connecting pipe with the first galvanized pipe and the second galvanized pipe in multiple directions, avoiding potential safety hazards that may be brought by a single fixed point. The design of the L-link enables the clamp component to automatically adjust its position with the movement of the positioning and clamping member, ensuring the automation level of the entire splicing process and reducing the need for manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a structural schematic diagram of the present utility model;

[0026] Figure 2 is a structural schematic diagram of the splicing and positioning assembly of the present utility model;

[0027] Figure 3 is a structural schematic diagram of the disassembled state of the L-link of the present utility model;

[0028] Figure 4 Schematic diagram of the connection structure of the U-shaped clamping rod of the present utility model;

[0029] Figure 5 Schematic diagram of the connection structure of the double-headed screw rod of the present utility model;

[0030] Figure 6 Cross-sectional view of the splicing connecting pipe of the present utility model;

[0031] Figure 7 For the present utility model Figure 6 Enlarged schematic diagram of the structure at A in the figure.

[0032] Explanation of reference numerals:

[0033] In the figure: 1, galvanized pipe splicing assembly; 2, first galvanized pipe; 3, second galvanized pipe; 4, splicing connecting pipe; 5, splicing positioning assembly; 6, U-shaped clamping rod; 7, clamp component; 8, positioning clamping member; 9, handle; 10, moving connecting rod; 11, positioning cross bar; 12, L connecting rod; 13, arc-shaped clamp plate; 14, connecting ear plate; 15, locking screw rod; 16, connecting screw rod; 17, knob member; 18, travel chute; 19, sealing bearing; 20, travel limit ring; 21, external thread path; 22, recessed part; 23, rounded corner connecting part; 24, double-headed screw rod. Detailed implementation manners

[0034] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0035] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present utility model, and are hereby explained together.

[0036] This embodiment provides a quick connection device for splicing galvanized pipes as shown in Figures 1 to 7 the figure, including: galvanized pipe splicing assembly 1, splicing positioning assembly 5, clamp component 7, L connecting rod 12.

[0037] In this embodiment, the galvanized pipe splicing assembly 1 is buried in the building floor slab for later use as a passage for electric wires and cables. The galvanized pipe splicing assembly 1 includes a first galvanized pipe 2, a second galvanized pipe 3, and a splicing connecting pipe 4 spliced between the first galvanized pipe 2 and the second galvanized pipe 3. The galvanized pipe splicing assembly 1, as the basic structure of the entire connection device, includes all necessary splicing components and is used to be buried in the building floor slab to provide a passage for later electric wires and cables, simplifying the construction process of later electrical engineering and improving the wiring efficiency. The first galvanized pipe 2 and the second galvanized pipe 3, as the pipe bodies to be spliced, provide a transmission path for electric wires or cables, ensuring the safe transmission of electrical circuits. The splicing connecting pipe 4, as the connecting piece between the first galvanized pipe 2 and the second galvanized pipe 3, enables the two galvanized pipes to be smoothly butted, ensuring a smooth transition at the connection and reducing the possibility of wire damage.

[0038] In this embodiment, the splicing positioning assembly 5 includes a U-shaped clamping rod 6 horizontally sleeved around the periphery of the splicing connecting pipe 4 and positioning clamping members 8 that telescopically move on the inner walls on both sides of the U-shaped clamping rod 6. The two positioning clamping members 8 are clamped around the outer wall of the splicing connecting pipe 4. The splicing positioning assembly 5 is used to fix and align the galvanized pipes, ensuring that the galvanized pipes are in the correct position during splicing, improving the splicing accuracy, and reducing misalignment and jamming phenomena. The U-shaped clamping rod 6, as the main frame of the positioning assembly, supports and fixes the positioning clamping members 8, ensuring the stability and accuracy of the positioning clamping members. The positioning clamping members 8 directly clamp the splicing connecting pipe 4 and tighten the splicing connecting pipe by moving, enhancing the stability of the splicing connecting pipe and ensuring that it does not displace.

[0039] In this embodiment, the clamp component 7 is arranged above or below the U-shaped clamping rod 6 for coaxially clamping the upper first galvanized pipe 2 or the lower second galvanized pipe 3 with the splicing connecting pipe 4. The clamp component 7 assists in fixing the galvanized pipes 2 and 3, and is linked with the U-shaped clamping rod 6 through the L connecting rod 12 to ensure the alignment of the galvanized pipes with the splicing connecting pipe, prevent the galvanized pipes from shifting during the splicing process, and ensure the splicing quality.

[0040] In this embodiment, one end of the L connecting rod 12 is fixed to the outer wall of the U-shaped clamping rod 6, and the other end of the L connecting rod 12 is fixedly connected to the clamp component 7. When the U-shaped clamping rod 6 drives the two positioning clamping members 8 to clamp around the periphery of the splicing connecting pipe 4, for the stable limit of the U-shaped clamping rod 6, the clamp component 7 is driven by the L connecting rod 12 to be clamped around the periphery of the first galvanized pipe 2 or the second galvanized pipe 3. The clamp component 7, the positioning clamping members 8, and the splicing connecting pipe 4 are coaxial, so that when the first galvanized pipe 2 and the second galvanized pipe 3 are spliced into the splicing connecting pipe 4, they will not be inclined, misaligned, or jammed, but will be spliced smoothly and accurately under the coaxial positioning. The L connecting rod 12 connects the U-shaped clamping rod 6 and the clamp component 7, transmits the torque, enables the clamp component 7 to move with the U-shaped clamping rod 6, improves the action synchronization of the clamp component 7, and enhances the coordination of the overall structure.

[0041] In this embodiment, a recessed portion 22 is integrally formed at the middle position on the circumferential side of the splicing connecting pipe 4. The recessed portion 22 protrudes into the inner cavity of the splicing connecting pipe 4. At the opposite ends of the first galvanized pipe 2 and the second galvanized pipe 3 in the inner cavity of the splicing connecting pipe 4, there are provided chamfered connecting portions 23.

[0042] In this embodiment, when the first galvanized pipe 2 and the second galvanized pipe 3 are spliced, the two chamfered connecting portions 23 are fitted to both sides of the inner wall of the recessed portion 22, so that the chamfered connecting portions 23 are in fitting contact with the inner wall of the recessed portion 22, preventing the cable line from being scratched by the inside of the recessed portion 22 or the ends of the first galvanized pipe 2 and the second galvanized pipe 3. The recessed portion 22 and the chamfered connecting portion 23 optimize the splicing surface of the first galvanized pipe 2 and the second galvanized pipe 3, prevent the wires or cables from being damaged during the splicing process, and improve the safety and reliability of the electrical system.

[0043] In this embodiment, a travel chute 18 is provided inside the U-shaped clamping rod 6. A double-headed screw rod 24 is rotatably installed in the travel chute 18. At both ends of the circumferential side of the double-headed screw rod 24, there are provided external thread paths 21 with opposite thread directions.

[0044] In this embodiment, moving connecting rods 10 are threadedly penetrated and connected to the circumferential sides of the two external thread paths 21. One end of the double-headed screw rod 24 extends to the outside of the U-shaped clamping rod 6 and is fixedly connected to a knob member 17.

[0045] In this embodiment, travel limit rings 20 are symmetrically welded to the circumferential side of the double-headed screw rod 24 at the opposite ends of the two external thread paths 21. At the bare rod portions at both ends of the double-headed screw rod 24, they are connected to the U-shaped clamping rod 6 through sealed bearings 19. The double-headed screw rod 24 serves as a driving mechanism for the movement of the positioning clamping member 8. By rotating, the position of the positioning clamping member 8 is changed, realizing the rapid positioning and clamping of the positioning clamping member 8. The external thread path 21 is used in cooperation with the moving connecting rod 10. Through thread engagement, the rotational movement of the double-headed screw rod 24 is transmitted, ensuring the precise movement of the positioning clamping member 8.

[0046] In this embodiment, connection screws 16 are fixedly connected to the back surfaces of both of the two positioning and clamping members 8. The opposite ends of the two connection screws 16 are each threadedly connected to an adjacent moving link 10. Positioning cross bars 11 are welded to the opposite side surfaces of the two moving links 10. The ends of the two positioning cross bars 11 away from the moving links 10 each penetrate and extend to the outside of the U-shaped clamping rod 6. The moving link 10 connects the positioning and clamping member 8 and the double-headed screw 24, transmitting torque so that the positioning and clamping member 8 can move following the double-headed screw 24, achieving the rapid response and adjustment of the positioning and clamping member 8. The positioning cross bar 11 enhances the rigidity of the moving link 10, improves the stability of the moving link 10, and prevents the moving link 10 from bending or deforming during operation. The connection screw 16 connects the positioning and clamping member 8 and the moving link 10, ensuring the synchronous movement of the positioning and clamping member 8 and the moving link 10, and improving the coordinated working ability of the device.

[0047] In this embodiment, the clamp component 7 includes two arc-shaped clamp plates 13 symmetrically spliced together. Connection lugs 14 are integrally connected to both sides of the opposite ends of the two arc-shaped clamp plates 13. Adjacent connection lugs 14 are connected together by locking screws 15. The arc-shaped clamp plates 13 form the main part of the clamp component 7 and are fixed through the connection lugs 14 and the locking screws 15 to form an annular structure, ensuring the firmness of the clamp component 7 and providing sufficient clamping force. The locking screw 15 fixes the clamp component 7, adjusts and locks the positions of the two arc-shaped clamp plates 13, enhances the fixing effect of the clamp component 7, and ensures its reliability and durability.

[0048] In this embodiment, one end of the L-shaped link 12 away from the U-shaped clamping rod 6 is fixedly connected to the back surface of one of the arc-shaped clamp plates 13, and a handle 9 is fixed to the back surface of the U-shaped clamping rod 6. The handle 9 facilitates the operator to hold the entire splicing and positioning assembly 5, provides a grasping point, is convenient for handling and operation, improves the user experience, and makes the operation more convenient.

[0049] Working principle:

[0050] For this rapid connection device for splicing galvanized pipes, the galvanized pipe splicing assembly 1 is embedded in the building floor slab as a passage for subsequent electric wires and cables. Ensure that the splicing connecting pipe 4 is ready, and a recess 22 is integrally formed at the middle position on its circumferential side, and this recess protrudes into the inner cavity of the splicing connecting pipe. Chamfered connecting parts 23 are provided at the opposite ends of the first galvanized pipe 2 and the second galvanized pipe 3 in the inner cavity of the splicing connecting pipe 4. Open the splicing and positioning assembly 5 to make the U-shaped clamping rod 6 in an open state, adjust the position of the positioning and clamping member 8 to separate it from the U-shaped clamping rod 6, and ensure that the splicing connecting pipe 4 can be easily placed into the U-shaped clamping rod.

[0051] Place the splicing connecting pipe 4 into the U-shaped clamping rod 6 and ensure that it is in the central position. At this time, the concave portion 22 of the splicing connecting pipe 4 should face the inner cavity and be aligned with the rounded corner connecting portion 23 on the first galvanized pipe 2 and the second galvanized pipe 3. Rotate the knob member 17 to make the double-headed screw rod 24 rotate. Since the external thread paths 21 at both ends of the double-headed screw rod 24 have opposite directions, the moving link 10 will move towards the center along the stroke chute 18. The movement of the moving link 10 drives the positioning clamping member 8 to approach the splicing connecting pipe 4 and finally clamp the outer wall of the splicing connecting pipe. The stroke limit ring 20 restricts the moving range of the moving link 10 to prevent over-clamping or loosening.

[0052] After the positioning clamping member 8 clamps the splicing connecting pipe 4, the L-shaped link 12 will drive the clamp assembly 7 to move. The arc-shaped clamp plate 13 in the clamp assembly 7 is connected together through the connecting ear plate 14 and the locking screw rod 15 to form a ring structure. The clamp assembly 7 will move to the periphery of the first galvanized pipe 2 and be fixed by the locking screw rod 15. Similarly, by adjusting the position of the L-shaped link 12, the clamp assembly 7 is moved to the periphery of the second galvanized pipe 3 and fixed by the locking screw rod 15. At this time, both the first galvanized pipe 2 and the second galvanized pipe 3 have been fixed to the splicing connecting pipe 4 by the clamp assembly 7 and the positioning clamping member 8.

[0053] Check whether all connections are firm, confirm that there is no loosening or misalignment, and ensure that all components are in the correct alignment state. In particular, the rounded corner connecting portion 23 should fit exactly with the concave portion 22 to prevent wires or cables from being scratched.

[0054] It should be noted that in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick connection device for splicing galvanized pipes, characterized in that, Comprising: A galvanized pipe splicing assembly (1), buried in the building floor slab for later use as a passage for wires and cables. The galvanized pipe splicing assembly (1) includes a first galvanized pipe (2), a second galvanized pipe (3), and a splicing connecting pipe (4) spliced between the first galvanized pipe (2) and the second galvanized pipe (3); A splicing positioning component (5), including a U-shaped clamping rod (6) horizontally sleeved on the periphery of the splicing connecting pipe (4) and positioning clamping members (8) respectively telescopically moving on the inner walls on both sides of the U-shaped clamping rod (6). The two positioning clamping members (8) are fitted and clamped on the outer wall periphery of the splicing connecting pipe (4); A clamp component (7), arranged above or below the U-shaped clamping rod (6) for coaxially clamping the upper first galvanized pipe (2) or the lower second galvanized pipe (3) with the splicing connecting pipe (4); An L-shaped connecting rod (12), one end of which is fixed to the outer wall of the U-shaped clamping rod (6), and the other end of the L-shaped connecting rod (12) is fixedly connected to the clamp component (7).

2. The quick connection device for splicing galvanized pipes according to claim 1, characterized in that: A recessed portion (22) is integrally formed at the middle position on the periphery of the splicing connecting pipe (4). The recessed portion (22) protrudes towards the inner cavity of the splicing connecting pipe (4). At the opposite ends of the first galvanized pipe (2) and the second galvanized pipe (3) in the inner cavity of the splicing connecting pipe (4), there are provided chamfered connecting portions (23).

3. The quick connection device for splicing galvanized pipes according to claim 2, characterized in that: When the first galvanized pipe (2) and the second galvanized pipe (3) are spliced, the two chamfered connecting portions (23) are fitted to both sides of the inner wall of the recessed portion (22), so that the chamfered connecting portions (23) are in fitting contact with the inner wall of the recessed portion (22), preventing the cable line from being scratched by the inside of the recessed portion (22) or the ends of the first galvanized pipe (2) and the second galvanized pipe (3).

4. The quick connection device for splicing galvanized pipes according to claim 3, characterized in that: An inner cavity of the U-shaped clamping rod (6) is provided with a travel chute (18). A double-headed screw rod (24) is rotatably installed in the travel chute (18). Threaded outer thread paths (21) with opposite thread directions are provided at both ends of the periphery of the double-headed screw rod (24).

5. The quick connection device for splicing galvanized pipes according to claim 4, characterized in that: Both peripheries of the two outer thread paths (21) are threadedly penetrated and connected with moving connecting rods (10). One end of the double-headed screw rod (24) extends to the outside of the U-shaped clamping rod (6) and is fixedly connected with a knob member (17).

6. The quick connection device for splicing galvanized pipes according to claim 5, characterized in that: Travel limit rings (20) are symmetrically welded to the opposite ends of the two outer thread paths (21) and on the periphery of the double-headed screw rod (24). Both ends of the smooth rod of the double-headed screw rod (24) are connected to the U-shaped clamping rod (6) through sealed bearings (19).

7. The quick connection device for splicing galvanized pipes according to claim 6, characterized in that: Connecting screw rods (16) are fixedly connected to the backs of the two positioning clamping members (8). The opposite ends of the two connecting screw rods (16) are threadedly connected to the adjacent moving connecting rods (10) together.

8. The quick connection device for splicing galvanized pipes according to claim 7, characterized in that: Positioning cross bars (11) are welded to the opposite side surfaces of the two moving connecting rods (10). The ends of the two positioning cross bars (11) away from the moving connecting rods (10) both penetrate and extend to the outside of the U-shaped clamping rod (6).

9. The quick connection device for splicing galvanized pipes according to claim 8, characterized in that: The clamp component (7) includes two arc-shaped clamp plates (13) symmetrically spliced together. On both sides of the opposite ends of the two arc-shaped clamp plates (13), connecting ear plates (14) are integrally connected. Between adjacent two of the connecting ear plates (14), they are all connected together by locking screws (15).

10. The quick connection device for splicing galvanized pipes according to claim 9, wherein: One end of the L-shaped connecting rod (12) far from the U-shaped clamping rod (6) is fixedly connected to the back surface of one of the arc-shaped clamp plates (13), and a handle (9) is fixed on the back surface of the U-shaped clamping rod (6).

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