Galvanized pipe strength inspection device

Abstract

The invention relates to the technical field of galvanized pipe detection, in particular to a galvanized pipe strength inspection device which is characterized in that the center of the bottom end in a working box is fixedly provided with the bottom end of a moving assembly in a moving and fixing machine, the right side of the moving assembly is fixedly provided with the left side of an auxiliary rod, and the top ends of the two sides of the moving assembly and the auxiliary rod are connected with the inner side of the bottom end of a moving frame; the bottom ends of fixing clamps are arranged on the two sides of the top end of the moving frame, the outer sides of the bottom ends of galvanized pipes are clamped in the fixing clamps, the top ends of the galvanized pipes are clamped and fixed by the inner walls of clamping plates in the clamping mechanisms, the clamping plates are fixedly arranged on the lower sides of the bottom ends of the rotating assemblies, and therefore the situation that follow-up detection is affected by side slipping is prevented; the galvanized pipe can be fixed outside through the moving assembly, potential safety hazards are reduced, the working efficiency is improved, the height and the use time of the pressure block can be adjusted, the efficiency is further improved, detection is facilitated, fixing can be further conducted, and the detection quality is improved.

Description

Technical Field

[0001] This invention relates to the field of galvanized pipe testing technology, specifically to a galvanized pipe strength testing device. Background Technology

[0002] Galvanized pipe is a type of pipe made from galvanized steel sheet. Its surface is galvanized to prevent corrosion and oxidation, enhancing its durability. It is widely used in construction and industrial fields. Galvanized pipe needs to withstand certain pressure and weight, therefore, it requires strength testing. This is mainly achieved by testing the pressure resistance and bending strength of the galvanized pipe. For example, the Chinese utility patent CN218098619U discloses a galvanized duct strength testing device, which includes a housing. The left and right inner walls of the housing are respectively movably connected to the same first lead screw via bearings. The right end of the first lead screw passes through the inner ring of the bearing and extends out of the housing to be fixedly connected to the output shaft of a first motor. A first ball nut is movably connected to the first lead screw, and the bottom of the first ball nut is fixedly connected to a first connecting rod by welding. The bottom end of the first connecting rod is fixedly connected to a press by welding, and the bottom of the press is fixedly connected to a pressure plate. The galvanized duct strength testing device provided by this utility model facilitates the effective clamping of ducts of different lengths, preventing them from easily falling off during inspection and effectively improving inspection efficiency. It also allows for easy left-right translation control of the testing press, enabling inspection of different positions on the duct, thus significantly enhancing its convenience.

[0003] While existing technologies can detect different locations and improve efficiency, and can meet the needs of use, they still have the following shortcomings:

[0004] First, this device requires continuous testing of the galvanized duct to improve accuracy, but this process consumes a lot of energy and increases operating costs.

[0005] Second, due to the high pressure during pressure testing, this device may cause some circular air ducts to move, ultimately affecting the test data.

[0006] Third, because the inside of the work box is relatively dangerous, it is inevitable that people will bump into it when they enter. Fixing the inside is time-consuming and inefficient. Summary of the Invention

[0007] The purpose of this invention is to provide a galvanized pipe strength testing device to solve the problems mentioned in the background art regarding the existing device: 1. It requires continuous testing of the galvanized pipe to improve accuracy, but this process consumes a lot of energy and increases operating costs; 2. During pressure testing, the pressure is high, which may cause some round galvanized pipes to move, ultimately affecting the test data; 3. Because the inside of the working chamber is relatively dangerous, manual entry is bound to result in bumps and knocks, and fixing the inside is time-consuming and inefficient.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a galvanized pipe strength testing device, comprising a working box, a pressure testing machine, and a galvanized pipe. The pressure testing machine is located inside the working box, and the galvanized pipe is located at the bottom end of the pressure testing machine. The bottom end of a moving component of a movable fixing machine is fixedly installed at the center of the bottom end of the working box. The left side of an auxiliary rod is fixedly installed on the right side of the moving component. The top ends of both sides of the moving component and the auxiliary rod are connected to the inner bottom end of a moving frame. The bottom ends of fixing clamps are located on both sides of the top end of the moving frame. The outer bottom end of the galvanized pipe is clamped inside the fixing clamps, and the top end of the galvanized pipe is clamped. The mechanism is fixed by clamping plates on the inner wall. The clamping plates are all fixed to the lower side of the bottom of the rotating assembly. The left side of the rotating assembly meshes with the front and rear sides of the bottom of the connecting assembly. The top of the connecting assembly is connected to the left side of the central rotating shaft in the pressure testing machine. The left side of the central rotating shaft is connected to the right side of the drive box. The right side of the central rotating shaft is connected to the left side of the transmission assembly. The right center of the transmission assembly meshes with the front and rear sides of the bidirectional rack. The inner sides of the fixed guide rails are fixed on both sides of the bidirectional rack. The left side of the connecting fixed shaft is fixed on the right side of the transmission assembly. The top of the pressure block is provided at the bottom of the bidirectional rack.

[0009] Preferably, the bottom of the work box is fixed with the top of the top of the four sides of the bottom, and the bottom two walls of the work box are provided with lower fixing blocks to fix the two ends of the clamping mechanism. The two sets of lower fixing blocks are connected with an inner protrusion block in the center. The upper left side of the inner rear wall of the work box is provided with the rear end of the middle fixing plate. A square slot is opened at the center of the top of the work box.

[0010] Preferably, the inside of the moving side rod of the moving assembly is provided through the inner side of the transverse conveyor belt group, and the front end of the transverse conveyor belt group is provided with a rotating shaft, and the top end of the rotating shaft is connected to a rotating valve.

[0011] Preferably, the top of the limiting block in the movable frame is connected to the four sides of the bottom of the fixed movable pad, and the inner sides of the bottom of the four sets of limiting blocks are respectively clamped to the center of both sides of the movable side rod and the auxiliary rod. The top of the movable wheel is provided at the center of the left side of the bottom of the movable pad, and the inner side of the bottom of the movable wheel is connected to the center left of the transverse conveyor belt group. Two sets of auxiliary wheels are provided on the right side of the movable pad, and the left side of the bottom of the auxiliary wheel is connected to the center of the right side of the auxiliary rod.

[0012] Preferably, the center of the lower fixed bearing is located on the inner side of the center of the lower fixed plate in the fixing clamp, and the lead screw passes through the center of the lower fixed bearing. The inner side of the lead screw is fixedly connected to the rotating handle, and a rubber gasket is provided on the inner side of the lead screw.

[0013] Preferably, in the transmission assembly, the left center of the first gear is connected to the right side of the central rotating shaft, and the front and rear ends of the first gear mesh with the second gear and the third gear respectively for rotation. The left side of the second gear and the third gear are connected to a limiting block, and the right side of the limiting block is connected to the left side of the second gear and the third gear, through which the left side of the second gear and the third gear are connected, and the left side of the inner end of the half gear is fixed. The two sets of half gears are in the same direction.

[0014] Preferably, in the connecting assembly, the top end of the vertical conveyor belt group is connected to the inner left side of the central rotating shaft, and the bottom end of the vertical conveyor belt group is connected to the left fixed shaft fixed inside the lower fixed block for rotation, and the right side of the left fixed shaft is fixedly connected to the inner side of the transverse bevel gear.

[0015] Preferably, the right side of the transverse bevel gear meshes with the left side of the longitudinal bevel gear, and a rotating rod is provided through the center of the longitudinal bevel gear. The rotating rod is inserted into the right side of the lower left fixed block, and worm gears are provided at both ends of the rotating rod.

[0016] Preferably, the limiting bearings in the rotating assembly are divided into two groups and fixedly mounted on the front and rear ends of the lower fixed block, and the two groups of limiting bearings are provided with threaded tubes inside.

[0017] Preferably, movable bearings are provided on both sides of the center of the threaded tube, and connecting clamping plates are fixed at the bottom ends of the front and rear sets of movable bearings. Fixed bearings are fixed at the left end of the threaded tube, and the inner side of the turbine is fixed on the outer side of the fixed bearing, with the turbine meshing with the bottom end of the worm gear.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By setting up a mobile fixing machine, and using accessories such as a mobile component, mobile side rod, transverse conveyor belt assembly, rotating shaft, rotating valve, auxiliary rod, mobile frame, limit block, mobile pad, mobile wheel, auxiliary wheel, fixing clamp, lower fixing plate, lower fixing bearing, screw, rotating handle, and rubber pad, it is convenient to initially fix and move galvanized pipes. This helps to prevent the galvanized pipes from shifting when further fixed in the working box, preventing lateral slippage that may affect subsequent inspections. The mobile component can also fix the galvanized pipes externally, reducing safety hazards and improving work efficiency.

[0020] 2. By setting up a pressure testing machine, and using accessories such as a drive box, central rotating shaft, transmission components, first gear, second gear, third gear, limit block, half gear, double rack and pinion, fixed guide rail, fixed shaft, and pressure block, it is convenient to test the pressure of galvanized pipes. It is also beneficial to adjust the height of the pressure block and the service life to further improve efficiency and facilitate testing.

[0021] 3. By setting up connecting components and clamping mechanisms, and using accessories such as vertical conveyor belt assembly, left fixed shaft, horizontal bevel gear, longitudinal bevel gear, rotating rod, worm gear, rotating assembly, limit bearing, threaded pipe, moving bearing, fixed bearing, turbine, and clamping plate, it is easy to link and further fix through the clamping mechanism. This can reduce energy consumption and lower production costs, and the galvanized pipe can be further fixed to improve the inspection quality. Attached Figure Description

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

[0023] Figure 1 This is a frontal cross-sectional view of the present invention;

[0024] Figure 2 This is a side cross-sectional view of the present invention;

[0025] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 4 This is an enlarged schematic diagram of the mobile fixed machine structure in this invention;

[0027] Figure 5 This is a schematic side view of the mobile fixed machine of the present invention;

[0028] Figure 6 This is a schematic diagram of the clamping mechanism of the present invention;

[0029] Figure 7 This is an enlarged schematic diagram of the connection component structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the pressure testing machine structure of the present invention.

[0031] In the diagram: 1. Work box; 101. Support leg; 102. Lower fixed block; 103. Inner protrusion block; 104. Middle fixed plate; 105. Square slot; 2. Moving and fixing machine; 201. Moving assembly; 2011. Moving side rod; 2012. Horizontal conveyor belt assembly; 2013. Rotating shaft; 2014. Rotating valve; 202. Auxiliary rod; 203. Moving frame; 2031. Limiting block; 2032. Moving pad; 2033. Moving wheel; 2034. Auxiliary wheel; 204. Fixing clamp; 2041. Lower fixed plate; 2042. Lower fixed bearing; 2043. Lead screw; 2044. Rotating handle; 2045. Rubber pad; 3. Galvanized pipe; 4. Pressure testing machine; 401. Drive. 402. Box; 403. Central rotating shaft; 403. Transmission assembly; 4031. First gear; 4032. Second gear; 4033. Third gear; 4034. Limiting block; 4035. Half-tooth gear; 404. Double-sided rack and pinion; 405. Fixed guide rail; 406. Fixed shaft; 407. Pressure block; 5. Connecting assembly; 501. Vertical conveyor belt assembly; 502. Left fixed shaft; 503. Horizontal bevel gear; 504. Longitudinal bevel gear; 505. Rotating rod; 506. Worm gear; 6. Clamping mechanism; 601. Rotating assembly; 6011. Limiting bearing; 6012. Threaded pipe; 6013. Moving bearing; 6014. Fixed bearing; 6015. Turbine; 602. Clamping plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-8An embodiment of the present invention provides a galvanized pipe strength testing device, comprising a working box 1, a pressure testing machine 4, and a galvanized pipe 3. The pressure testing machine 4 is located inside the working box 1, and the galvanized pipe 3 is located at the bottom end of the pressure testing machine 4. The device is characterized in that: the bottom end of a moving component 201 in a moving fixing machine 2 is fixedly installed at the center of the bottom end of the working box 1; the left side of an auxiliary rod 202 is fixedly installed on the right side of the moving component 201; the bottom inner side of a moving frame 203 is connected to the top ends of both sides of the moving component 201 and the auxiliary rod 202; the bottom ends of fixing clamps 204 are provided on both sides of the top end of the moving frame 203; the bottom outer side of the galvanized pipe 3 is clamped inside the fixing clamps 204; and the top end of the galvanized pipe 3 is clamped by clamping plates 6 in a clamping mechanism 6. 02 The inner wall is clamped and fixed. The clamping plates 602 are all fixed on the lower side of the bottom end of the rotating component 601. The left side of the rotating component 601 is engaged with the front and rear sides of the bottom end of the connecting component 5. The top end of the connecting component 5 is connected to the left side of the central rotating shaft 402 in the pressure measuring machine 4. The left side of the central rotating shaft 402 is connected to the right side of the drive box 401. The right side of the central rotating shaft 402 is connected to the left side of the transmission component 403. The right side of the transmission component 403 is engaged with the front and rear sides of the bidirectional rack 404. The inner side of the fixed guide rail 405 is fixed on both sides of the bidirectional rack 404. The left side of the connecting fixed shaft 406 is fixed on the right side of the transmission component 403. The bottom end of the bidirectional rack 404 is provided with the top end of the pressure block 407.

[0034] According to the appendix Figure 1 The bottom of the work box 1 is fixed with the top of the top of the four sides of the bottom. The bottom two walls of the work box 1 are provided with lower fixing blocks 102 to fix the two ends of the clamping mechanism 6. The two sets of lower fixing blocks 102 are connected with the inner center of the inner protrusion block 103. The upper left side of the inner rear wall of the work box 1 is provided with the rear end of the middle fixing plate 104. The top center of the work box 1 is provided with a square slot 105 to facilitate linkage and improve efficiency.

[0035] As a further aspect of the present invention, the inside of the moving side rod 2011 in the moving component 201 is provided with the inner side of the transverse conveyor belt group 2012, and the front end of the transverse conveyor belt group 2012 is provided with a rotating shaft 2013, and the top end of the rotating shaft 2013 is connected to a rotating valve 2014. This device facilitates movement and makes it easier to manually fix the galvanized pipe.

[0036] Furthermore, the top of the limiting block 2031 in the movable frame 203 is connected to the four sides of the bottom of the movable pad 2032, and the inner sides of the bottom of the four sets of limiting blocks 2031 are respectively clamped to the center of both sides of the movable side rod 2011 and the auxiliary rod 202. The top of the movable wheel 2033 is located at the center of the left side of the bottom of the movable pad 2032, and the inner side of the bottom of the movable wheel 2033 is connected to the center left of the transverse conveyor belt group 2012. Two sets of auxiliary wheels 2034 are located on the right side of the movable pad 2032, and the left side of the bottom of the auxiliary wheel 2034 is connected to the center of the right side of the auxiliary rod 202. This is beneficial to improve ease of movement and stability.

[0037] Furthermore, the center of the lower fixed bearing 2042 is located on the inner side of the center of the lower fixed plate 2041 in the fixed clamp 204, and the lead screw 2043 passes through the center of the lower fixed bearing 2042. The inner side of the rotating handle 2044 is fixedly connected to the outer side of the lead screw 2043, and a rubber gasket 2045 is provided on the inner side of the lead screw 2043 for initial fixation to facilitate further internal fixation and improve efficiency.

[0038] As a further aspect of the present invention, the center left side of the first gear 4031 in the transmission assembly 403 is connected to the right side of the central rotating shaft 402. The front and rear ends of the first gear 4031 mesh with the second gear 4032 and the third gear 4033 respectively for rotation. A limiting block 4034 is connected to the left side of the second gear 4032 and the third gear 4033. The right side of the limiting block 4034 is connected to the left side of the second gear 4032 and the third gear 4033, and the inner left side of the half-tooth gear 4035 is fixed through it. The two sets of half-tooth gears 4035 are in the same direction, which facilitates repeated testing and improves test quality and standards.

[0039] Furthermore, the top of the vertical conveyor belt group 501 in the connecting assembly 5 is connected to the inner left side of the central rotating shaft 402, and the bottom of the vertical conveyor belt group 501 is connected to the left fixed shaft 502 fixed inside the lower fixed block 102 for rotation. The right side of the left fixed shaft 502 is fixedly connected to the inner side of the transverse bevel gear 503, which is beneficial to improve linkage and reduce energy consumption.

[0040] Furthermore, the right side of the transverse bevel gear 503 meshes with the left side of the longitudinal bevel gear 504, and a rotating rod 505 is provided through the center of the longitudinal bevel gear 504. The rotating rod 505 is inserted into the right side of the lower left fixed block 102, and both ends of the rotating rod 505 are provided with worm gears 506 to rotate synchronously and improve stability.

[0041] Furthermore, the limiting bearings 6011 in the rotating assembly 601 are fixed in two groups at the front and rear ends of the lower fixed block 102, and the two groups of limiting bearings 6011 are provided with threaded tubes 6012 inside, which facilitates clamping of galvanized pipes and improves efficiency.

[0042] Furthermore, movable bearings 6013 are provided on both sides of the center of the threaded pipe 6012. The bottom ends of the two sets of movable bearings 6013 are fixed with connecting clamping plates 602. Fixed bearings 6014 are fixed on the left end of the threaded pipe 6012. The inner side of the turbine 6015 is fixed on the outer side of the fixed bearing 6014. The bottom end of the turbine 6015 meshing with the worm gear 506 facilitates transmission to the galvanized pipe.

[0043] Working principle: During operation, the rotating valve 2014 drives the rotating shaft 2013 to rotate. The rotation of the rotating shaft 2013 drives the transverse conveyor belt 2012 to rotate. The rotation of the transverse conveyor belt 2012 drives the moving wheel 2033 and the right auxiliary wheel 2034 to move the moving pad 2032 outward. Then, the galvanized pipe 3 is placed on the top of the fixing clamp 204. The rotating handles 2044 on both sides rotate the lead screw 2043. The lead screw 2043 rotates within the lower fixed bearing 2042 to move and initially fix the rubber pad 2045 to the bottom side of the galvanized pipe 3. Then, the rotating valve 2014 is operated in the opposite direction to move the galvanized pipe 3 inside. Then, the drive box 401 is started. The drive box 401 drives the central rotating shaft 402 to rotate. The rotation of the central rotating shaft 402 drives the first gear 4031 to rotate. The first gear 4031 meshes with the second gear 4032 and the third gear 4033 at the front and rear ends to rotate. Through the two sets of oppositely rotating second gears 4032 and 4033, the galvanized pipe 3 is moved outward. The half-gear 4035, which is in the same direction on the right side of the third gear 4033, rotates. The rotation of the half-gear 4035 meshes with the double-sided rack 404 and the pressure block 407 fixed at the bottom end, and they descend synchronously to perform a pressure test on the galvanized pipe 3. At the same time as the double-sided rack 404 descends, the left central shaft 402 drives the vertical conveyor belt group 501 to rotate. The rotation of the vertical conveyor belt group 501 drives the left fixed shaft 502 to rotate. The left fixed shaft 502 drives the transverse bevel gear 503 to mesh with the longitudinal bevel gear 504 to rotate. The longitudinal bevel gear 504 drives the central rotating rod 505 to rotate. The worm gears 506 on both sides of the rotating rod 505 mesh with the threaded pipe 6012. The left fixed bearing 6014 drives the outer turbine 6015 to rotate. The rotation of the turbine 6015 drives the threaded pipe 6012 to rotate, so that the two sets of moving bearings 6013 drive the clamping plate 602 to move inward to further fix the galvanized pipe 3 and improve the testing efficiency. This concludes the process.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A galvanized pipe strength testing device, comprising a working box (1), a pressure testing machine (4), and a galvanized pipe (3), wherein the working box (1) is equipped with the pressure testing machine (4), and the bottom end of the pressure testing machine (4) is equipped with the galvanized pipe (3), characterized in that: The bottom center of the working box (1) is fixed to the bottom of the moving component (201) in the moving fixing machine (2). The left side of the auxiliary rod (202) is fixed to the right side of the moving component (201). The top sides of the moving component (201) and the auxiliary rod (202) are connected to the bottom inner side of the moving frame (203). The bottom sides of the top of the moving frame (203) are provided with the bottom of the fixing clamp (204). The bottom outer side of the galvanized pipe (3) is clamped inside the fixing clamp (204). The top of the galvanized pipe (3) is clamped and fixed by the inner wall of the clamping plate (602) in the clamping mechanism (6). The clamping plate (602) is fixed to the bottom lower side of the rotating component (601). The bottom front and rear sides of the left meshing connection assembly (5) of 601) are connected to the left side of the central rotating shaft (402) in the pressure tester (4). The left side of the central rotating shaft (402) is connected to the right side of the drive box (401). The right side of the central rotating shaft (402) is connected to the left side of the transmission assembly (403). The right side of the transmission assembly (403) is connected to the front and rear sides of the bidirectional rack rod (404). The inner sides of the fixed guide rail (405) are fixed on both sides of the bidirectional rack rod (404). The left side of the connecting fixed shaft (406) is fixed on the right side of the transmission assembly (403). The bottom end of the bidirectional rack rod (404) is provided with the top end of the pressure block (407).

2. The galvanized pipe strength testing device according to claim 1, characterized in that: The bottom of the work box (1) is fixed with the top of the support legs (101) on all four sides. The bottom of the work box (1) is provided with lower fixing blocks (102) to fix the two ends of the clamping mechanism (6). The two sets of lower fixing blocks (102) are connected with an inner protrusion block (103) in the center. The upper left side of the inner rear wall of the work box (1) is provided with the rear end of the middle fixing plate (104). A square slot (105) is opened at the top center of the work box (1).

3. The galvanized pipe strength testing device according to claim 1, characterized in that: The inner side of the transverse conveyor belt group (2012) is penetrated through the moving side rod (2011) of the moving component (201), and the front end of the transverse conveyor belt group (2012) is provided with a rotating shaft (2013), and the top end of the rotating shaft (2013) is connected to a rotating valve (2014).

4. The galvanized pipe strength testing device according to claim 1, characterized in that: The top of the limiting block (2031) in the movable frame (203) is connected to the four sides of the bottom of the fixed movable pad (2032), and the inner sides of the bottom of the four sets of limiting blocks (2031) are respectively clamped to the center of both sides of the movable side rod (2011) and the auxiliary rod (202). The top of the movable wheel (2033) is provided at the center of the left side of the bottom of the movable pad (2032), and the inner side of the bottom of the movable wheel (2033) is connected to the center left of the transverse conveyor belt group (2012). Two sets of auxiliary wheels (2034) are provided on the right side of the movable pad (2032), and the left side of the bottom of the auxiliary wheel (2034) is connected to the center of the right side of the auxiliary rod (202).

5. The galvanized pipe strength testing device according to claim 1, characterized in that: The center of the lower fixed bearing (2042) is located on the inner side of the center of the lower fixed plate (2041) in the fixed clamp (204), and the lead screw (2043) passes through the center of the lower fixed bearing (2042). The inner side of the lead screw (2043) is fixedly connected to the rotating handle (2044), and the inner side of the lead screw (2043) is provided with a rubber gasket (2045).

6. The galvanized pipe strength testing device according to claim 1, characterized in that: In the transmission assembly (403), the left center of the first gear (4031) is connected to the right side of the central rotating shaft (402). The front and rear ends of the first gear (4031) mesh with the second gear (4032) and the third gear (4033) respectively to rotate. The left side of the second gear (4032) and the third gear (4033) are connected to a limiting block (4034). The right side of the limiting block (4034) is connected to the left side of the second gear (4032) and the third gear (4033) and the inner left side of the half-tooth gear (4035) is fixed through it. The two sets of half-tooth gears (4035) are in the same direction.

7. The galvanized pipe strength testing device according to claim 1, characterized in that: The top of the vertical conveyor belt group (501) in the connecting assembly (5) is connected to the inner left side of the central rotating shaft (402), and the bottom of the vertical conveyor belt group (501) is connected to the left fixed shaft (502) fixed inside the lower fixed block (102) for rotation. The right side of the left fixed shaft (502) is fixedly connected to the inner side of the transverse bevel gear (503).

8. The galvanized pipe strength testing device according to claim 6, characterized in that: The right side of the transverse bevel gear (503) meshes with the left side of the longitudinal bevel gear (504), and a rotating rod (505) is provided through the center of the longitudinal bevel gear (504). The rotating rod (505) is inserted on the right side of the lower left fixed block (102), and worm gears (506) are provided at both ends of the rotating rod (505).

9. The galvanized pipe strength testing device according to claim 1, characterized in that: The rotating assembly (601) has two sets of limit bearings (6011) fixedly mounted on the front and rear ends of the lower fixed block (102) on both sides, and the two sets of limit bearings (6011) are provided with threaded tubes (6012).

10. A galvanized pipe strength testing device according to claim 8, characterized in that: The threaded tube (6012) is provided with movable bearings (6013) on both sides of the center. The bottom ends of the two sets of movable bearings (6013) are fixed with connecting clamping plates (602). The left end of the threaded tube (6012) is fixed with fixed bearings (6014). The outer side of the fixed bearings (6014) is fixed with the inner side of the turbine (6015). The turbine (6015) meshes with the bottom end of the worm (506).

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