Pressure resistance testing machine for water conveying pipe

Abstract

The utility model discloses a pressure-resistant testing machine for a water conveying pipe, which relates to the technical field of pressure-resistant testing equipment and comprises two clamping modules which are arranged on a workbench and are adjustable in distance. Each clamping module comprises a supporting assembly, an inner supporting column, a steel cable, a pulling and connecting assembly and a base plate. The supporting assembly is provided with a first cavity and a second cavity. The inner supporting column is transversely arranged in the first cavity; the two ends of the steel cable are fixedly connected with the supporting assembly and the pulling-connecting assembly correspondingly. The middle of the steel cable is wound around the periphery of the inner supporting column. The multiple base plates are arranged on the bottom face of the first cavity in a stacked mode. The pulling and connecting assembly is installed in the second cavity. The clamping module can clamp, fix and seal the end part of the detected water pipe belt; and the water conveying pipe belt is pressed on the inner supporting column in a tiled manner and is sealed, so that wrinkles are prevented from being formed, and the problem that the test precision is reduced due to stress concentration is further avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure test equipment technical field, concretely relates to a water pipe belt pressure test machine. BACKGROUND

[0002] Drip irrigation is a new water-saving irrigation method.

[0003] Drip irrigation usually uses flexible water pipe belt to supply water, so as to have excellent bending performance, so as to improve the flexibility of layout. The water pipe belt needs to bear the hydraulic pressure from the internal irrigation water, so it needs to be pressure tested before use, and the pressure limit is considered qualified after reaching the standard.

[0004] The water pipe belt is soft in texture, so a large number of wrinkles will be generated when it is tied and sealed, resulting in stress concentration (the tied steel cable will exert shear force on the wrinkles), and the wrinkled part will burst before the unbound position of the water pipe belt reaches the pressure limit, resulting in reduced test accuracy. SUMMARY

[0005] In order to overcome the problem of "the traditional technology adopts the form of binding to seal the water pipe belt, which reduces the test accuracy" in the above background technology, the utility model provides a water pipe belt pressure test machine.

[0006] The utility model solves the above technical problems by adopting the following technical scheme:

[0007] A water pipe belt pressure test machine, comprising two clamping modules installed on a workbench and adjustable in spacing; a single clamping module comprises a support assembly, an inner support column, a steel cable, a pull connection assembly and a backing plate; the support assembly is provided with a first cavity and a second cavity; the inner support column is transversely arranged in the first cavity; the steel cable is fixedly connected at both ends with the support assembly and the pull connection assembly, and the middle part of the steel cable is wound around the outer circumferential position of the inner support column; the backing plate is provided with a plurality of layers and is arranged in a stacked manner on the bottom surface of the first cavity; the pull connection assembly is installed in the second cavity; further comprising a water injection pipe connected with any of the inner support columns, a liquid pump connected with and communicated with the water injection pipe, a water tank connected with and communicated with the liquid pump, and a hydraulic pressure gauge installed on the water injection pipe.

[0008] As a further optimization scheme of the utility model, the support assembly comprises a bottom plate, a first vertical plate, a second vertical plate and a third vertical plate, the bottom plate is transversely arranged, the first vertical plate and the second vertical plate are respectively arranged at both ends of the upper surface of the bottom plate, and the second vertical plate is arranged at the middle part of the upper surface of the bottom plate.

[0009] As a further optimization scheme of the utility model, the first cavity is arranged between the first vertical plate and the second vertical plate, and the second cavity is arranged between the second vertical plate and the third vertical plate.

[0010] As a further optimization scheme of the utility model, the support assembly further comprises a top support cross bar; two ends of the top support cross bar are fixedly connected with the top of the first vertical plate and the top of the second vertical plate respectively; the middle part of the top support cross bar is fixedly connected with the top of the second vertical plate.

[0011] As a further optimization scheme of the utility model, the top of the second vertical plate is provided with a first jack, and the steel cable is inserted into the first jack.

[0012] As a further optimization scheme of the utility model, the first vertical plate, the second vertical plate and the third vertical plate are arranged in parallel.

[0013] As a further optimization scheme of the utility model, the pull assembly comprises a screw rod, a pull plate, a sliding block, a track and a handle; the screw rod is inserted into the screw hole of the pull plate and is connected through threads; the sliding block is fixedly installed at the bottom end of the pull plate, the sliding block is slidingly connected with the track, and the track is fixedly installed at the bottom surface position of the second cavity; one end of the screw rod is inserted into the second cavity in a transverse manner, and the other end is connected with the handle in a perpendicular manner.

[0014] As a further optimization scheme of the utility model, the screw rod is connected with the pull plate in a perpendicular manner.

[0015] As a further optimization scheme of the utility model, the pull plate is arranged in parallel with the second vertical plate, and the track is arranged in a perpendicular manner with the second vertical plate.

[0016] As a further optimization scheme of the utility model, a concave ring is formed on the cylindrical side surface of the inner support column, the steel cable is sleeved at the position of the concave ring, and a strip-shaped hole for accommodating the steel cable is formed on the backing plate.

[0017] In summary, the utility model has the advantages of:

[0018] (1) The clamping module can clamp and fix the end part of the measured water pipe belt and seal; the water pipe belt is pressed and connected on the inner support column in a flat form and is sealed, so that the formation of wrinkles is avoided, and the problem of reduced test accuracy caused by stress concentration is further avoided.

[0019] (2) two clamping modules are installed at both ends of the water conveying pipe belt respectively; the spacing of the two clamping modules is adjustable, so that the clamping and pressure resistance test of the water conveying pipe belt with different lengths are adapted, the utility model has the technical advantages of quick installation, high reliability and good compatibility. The hydraulic gauge can detect the internal pressure of the water conveying pipe belt in real time, so that the pressure bearing change of the water conveying pipe belt is presented completely and accurately, so that the pressure resistance limit is accurately tested. The inner support column and the steel cable clamp the water conveying pipe belt from the inner and outer sides respectively, realize excellent sealing, and have a convenient loading and unloading form, so that the operation steps are optimized and the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below in combination with the drawings:

[0021] Figure 1 It is a whole structure schematic view of the utility model;

[0022] Figure 2 It is a left view structure schematic view of the clamping module;

[0023] Figure 3 It is a left view structure schematic view of the support assembly;

[0024] Figure 4 It is a left view structure schematic view of the connecting assembly;

[0025] Figure 5 It is a left view schematic diagram of the pull plate vertical section structure;

[0026] Figure 6 It is a schematic diagram of the side plate installation position and structure;

[0027] Figure 7 It is a horizontal cross-sectional view of the inner support column;

[0028] Figure 8 It is a horizontal cross-sectional view of the pad;

[0029] Figure 9 It is a front view structure schematic diagram of the sliding module.

[0030] Explanation of reference signs:

[0031] In the drawings,

[0032] 1, workbench;

[0033] 2, clamping module; 21, support assembly; 2101, first cavity; 2102, second cavity; 211, bottom plate; 212, first vertical plate; 213, second vertical plate; 214, third vertical plate; 215, top support crossbar; 22, inner support column; 221, concave ring; 23, steel cable; 24, pull connection assembly; 241, screw; 242, pull connection plate; 2421, plate body; 2422, sleeve; 2423, side plate; 243, sliding block; 244, track; 245, handle;

[0034] 3, sliding module; 31, guide column; 32, guide sleeve; 33, support end;

[0035] 4, water pipe belt;

[0036] 5, cushion plate; 51, strip-shaped hole;

[0037] 6, shell; 61, cover plate; 611, observation window;

[0038] 7, display;

[0039] 8, abutting ring. DETAILED DESCRIPTION

[0040] According to the above structural features of the application, the embodiments of the application are further described:

[0041] Referring to Figures 1-2 , the embodiment provides a water pipe belt pressure test machine, which comprises two clamping modules 2 installed on a workbench 1 and adjustable in spacing. Adjusting the spacing of the clamping modules 2 can adapt to the length of the water pipe belt 4 to be tested, so that the water pipe belt 4 can be in a straightened state after being clamped by the clamping modules 2 at both ends, thereby avoiding bending and stress concentration and improving the pressure test precision.

[0042] Referring to Figures 1-3 , a single clamping module 2 comprises a support assembly 21, an inner support column 22, a steel cable 23, a pull connection assembly 24 and a cushion plate 5. The support assembly 21 is provided with a first cavity 2101 and a second cavity 2102. The inner support column 22 is transversely arranged in the first cavity 2101; two inner support columns 22 are coaxially arranged to adapt to the water pipe belt 4. The steel cable 23 is fixedly connected with the support assembly 21 and the pull connection assembly 24 at both ends. The middle part of the steel cable 23 is wound around the outer circumferential position of the inner support column 22; the cushion plate 5 is arranged in a stacked manner at the bottom surface position of the first cavity 2101; and the pull connection assembly 24 is installed in the second cavity 2102.

[0043] The water delivery pipe belt pressure test machine further comprises a water injection pipe connected with any one of the inner support columns 22, a liquid pump connected with and communicating with the water injection pipe, a water tank connected with and communicating with the liquid pump, and a hydraulic gauge installed on the water injection pipe. The liquid pump injects water in the water tank into the inner cavity of the water delivery pipe belt 4, so that the water delivery pipe belt 4 is continuously subjected to the expansion force; the hydraulic gauge is used to detect the water pressure in the inner cavity of the water injection pipe in real time, and the water pressure in the inner cavity of the water injection pipe is equal to the water pressure in the inner cavity of the water delivery pipe belt 4, so as to detect the pressure limit of the water delivery pipe belt 4. Referring to Figure 1 , the workbench 1 is in a plate-shaped structure and is installed in the shell 6, the liquid pump and the water tank are placed in the shell 6 below the workbench 1, the shell 6 above the workbench 1 is hinged with a cover plate 61, the cover plate 61 is installed with a transparent observation window 611, and the observation window 611 is made of transparent tempered glass or resin material; when the pressure test is performed, the user buckles the cover plate 61 and observes the test state of the water delivery pipe belt 4 through the observation window 611, and when the water delivery pipe belt 4 is overloaded and bursts, the cover plate 61 can avoid water splashing on the user or the surrounding test equipment, thereby ensuring the test safety.

[0044] Referring to Figure 3 , the middle part of the steel cable 23 is bent downward to form a ring and is wound on the outer surface of the water delivery pipe belt 4 on the surface of the inner support column 22 and is tightly wound, so that the inner support column 22 and the steel cable 23 clamp the water delivery pipe belt 4 from the inner and outer sides, thereby realizing the sealing of the water delivery pipe belt 4 to perform the pressure test and avoid water leakage during the test.

[0045] Referring to Figure 2 and Figure 3 , the support assembly 21 comprises a bottom plate 211, a first vertical plate 212, a second vertical plate 213 and a third vertical plate 214. The bottom plate 211 is horizontally placed, the first vertical plate 212 and the second vertical plate 213 are respectively vertically placed at two ends of the upper surface of the bottom plate 211, and the second vertical plate 213 is vertically placed at the middle of the upper surface of the bottom plate 211. The first vertical plate 212, the second vertical plate 213 and the third vertical plate 214 are respectively vertically and fixedly connected with the bottom plate 211 (for example, through threaded connection or through integrated connection). The first cavity 2101 is arranged between the first vertical plate 212 and the second vertical plate 213, and the second cavity 2102 is arranged between the second vertical plate 213 and the third vertical plate 214.

[0046] Referring to Figure 3 and Figure 4 , the support assembly 21 further comprises a top support cross rod 215. The two ends of the top support cross rod 215 are respectively fixedly connected with the top of the first vertical plate 212 and the top of the second vertical plate 213 (for example, the top support cross rod 215 is fixedly connected with the reserved threaded hole of the top of the first vertical plate 212 through threads, and the top support cross rod 215 is fixedly connected with the reserved threaded hole of the top of the second vertical plate 213 through threads). The middle part of the top support cross rod 215 is fixedly connected with the top of the second vertical plate 213.

[0047] Referring to Figure 3 andFigure 4 The first insertion hole is arranged at the top of the second vertical plate 213, and the steel cable 23 is inserted into the first insertion hole.

[0048] Referring to Figure 3 With Figure 4 The first vertical plate 212, the second vertical plate 213 and the third vertical plate 214 are arranged in parallel with each other.

[0049] Referring to Figure 3 With Figure 4 The pulling assembly 24 comprises a screw rod 241, a pulling plate 242, a sliding block 243, a track 244 and a handle 245. The screw rod 241 is inserted into the threaded hole of the pulling plate 242 and connected by threads. The sliding block 243 is fixedly installed at the bottom end of the pulling plate 242, and the sliding block 243 is slidingly connected with the track 244, which is fixedly installed at the bottom surface of the second cavity 2102. One end of the screw rod 241 is transversely inserted into the second cavity 2102, and the other end is perpendicularly connected with the handle 245.

[0050] Referring to Figure 5 The pulling plate 242 comprises a plate body 2421 and a sleeve 2422 which are fixedly connected with each other by bolts, and the sleeve 2422 is perpendicularly inserted into the accommodating hole in the middle of the plate body 2421. The threaded hole of the pulling plate 242 is arranged on the side wall of the inner cavity of the sleeve 2422. The length of the sleeve 2422 is greater than the thickness of the plate body 2421, so that the threaded hole and the screw rod 241 have a larger contact surface, thereby increasing the friction force to prevent the steel cable 23 from loosening after the human force is removed.

[0051] The track 244 is provided with two tracks arranged on the left and right sides of the pulling plate 242, and the two tracks 244 are arranged in parallel with each other. The sliding block 243 is provided with two sliding blocks respectively clamped and installed on the two tracks 244. Figure 6 The pulling plate 242 further comprises side plates 2423, the bottom of the two side walls of the plate body 2421 is perpendicularly fixedly connected with the two side plates 2423 by bolts, the bottom surfaces of the side plates 2423 and the plate body 2421 are pressure-welded on the upper surface of the sliding block 243, the plate body 2421 is fixedly connected with the sliding block 243 by bolts, and the side plates 2423 are fixedly connected with the sliding block 243 by bolts. The plate body 2421 and the two side plates 2423 are fixedly connected in the shape of an I-beam, thereby increasing the contact area of the pulling plate 242 and the sliding block 243, and avoiding the pulling plate 242 from falling and reducing the wear of the sliding block 243 caused by unbalanced load.

[0052] Referring to Figures 4-6 The screw rod 241 is perpendicularly connected with the pulling plate 242. When the screw rod 241 rotates, it can push the pulling plate 242 to reciprocate along the axial direction of the screw rod 241, thereby tightening or loosening the steel cable 23.

[0053] With reference to Figure 4 , the pull plate 242 is arranged in parallel with the second vertical plate 213; and the track 244 is arranged perpendicularly to the second vertical plate 213.

[0054] With reference to Figure 4 , the second vertical plate 213 is provided with a second insertion hole in the middle, and the screw rod 241 is inserted into the second insertion hole and rotationally connected to the second vertical plate 213 (for example, through annular clamping); the third vertical plate 214 is provided with a third insertion hole in the middle, and the screw rod 241 is inserted into the third insertion hole and rotationally connected to the third vertical plate 214 (for example, through annular clamping), so as to support the screw rod 241 by the second vertical plate 213 and the third vertical plate 214, and avoid the screw rod 241 from being pulled out.

[0055] With reference to Figure 4 , the end of the screw rod 241 extends out of the second cavity 2102, and the end of the screw rod 241 away from the second cavity 2102 is provided with a fourth insertion hole along the radial direction, and the handle 245 is inserted into the fourth insertion hole; the two ends of the handle 245 are respectively integrally fixedly connected with a ball portion having a larger diameter than the fourth insertion hole, and the ball portion is used to prevent the handle 245 from being pulled out of the fourth insertion hole. The user can more conveniently rotate the screw rod 241 by grabbing the handle 245, and a greater tensioning force can be applied to the steel cable 23, so as to improve the bundling and sealing performance of the water conveying pipe belt 4.

[0056] With reference to Figure 7 , the inner support column 22 has a straight cylindrical structure. The cylindrical side surface of the inner support column 22 is provided with a concave ring 221, and the steel cable 23 is sleeved at the position of the concave ring 221. The spacer plate 5 is provided with a strip-shaped hole 51 for accommodating the steel cable 23.

[0057] With reference to Figure 7 and Figure 8 , the steel cable 23 cannot be completely embedded in the concave hole, so the steel cable 23 is wound in a convex manner on the inner support column 22 and the water conveying pipe belt 4. The strip-shaped hole 51 is used to accommodate the steel cable 23 at the bottommost position, so that the upper surface of the spacer plate 5 can be pressed and connected with the bottom surface of the inner support column 22 through the bottom surface of the water conveying pipe belt 4, thereby improving the stability of the utility model.

[0058] The concave ring 221 is provided with a plurality of concave rings and is arranged at equal intervals along the axial direction of the inner support column 22; the number of steel cables 23 is consistent with the number of concave rings 221, and the installation positions are one-to-one corresponding; the number of strip-shaped holes 51 is consistent with the number of steel cables 23, and the installation positions are one-to-one corresponding. The cylindrical side surface of the inner support column 22 is provided with an elastic rubber layer at the position of the concave hole, so as to increase the friction and sealing performance between the inner support column 22 and the water conveying pipe belt 4 when being bundled by the steel cable 23, thereby avoiding water leakage.

[0059] The inner support column 22 is provided with multiple and can be selectively placed in the first cavity 2101; different inner support columns 22 have different diameters, so that when testing the pressure strength of the water pipe belt 4 of different diameters, the inner support column 22 with a suitable diameter can be selected and inserted into the end of the water pipe belt 4.

[0060] Referring to Figure 4 , the base plate 5 is provided with several and is naturally pressed in the bottom surface position of the first cavity 2101 in a stacked manner. Since the top end position of the cable 23 is fixed, and the diameter of the selected inner support column 22 is adapted to the measured water pipe belt 4, the utility personnel can select the appropriate number of base plates 5 to be naturally pressed in the bottom surface position of the first cavity 2101 in a stacked manner according to the diameter of the measured water pipe belt 4, so that the base plate 5 can support the inner support column 22 and the water pipe belt 4, avoiding the problem of the inner support column 22 and the water pipe belt 4 hanging in the air.

[0061] Referring to Figure 1 , one clamping module 2 is fixedly connected with the workbench 1, and the bottom plate 211 of the clamping module 2 is fixedly connected with the workbench 1 through bolts; the inner support column 22 inside the clamping module 2 is provided with a metal insertion pipe at the axial position, and the metal insertion pipe penetrates through the entire inner support column 22; one end of the metal insertion pipe extends out of the inner support column 22, and the end of the metal insertion pipe away from the inner support column 22 is provided with a water nozzle, and the water nozzle is connected and communicated with the water injection pipe. After the water pipe belt 4 is installed, the water nozzle is communicated with the inner cavity of the water pipe belt 4 through the metal insertion pipe.

[0062] Referring to Figure 1 and Figure 9 , the other clamping module 2 is connected with the workbench 1 through the sliding module 3; the sliding module 3 includes guide columns 31, guide sleeves 32 and support end heads 33. The guide columns 31 are fixedly installed on the upper surface of the workbench 1 through the support end heads 33. The guide sleeves 32 are sleeved on the guide columns 31 and are slidingly connected, and the guide sleeves 32 are fixedly installed at the lower bottom surface position of the bottom plate 211 of the clamping module 2 (for example, through integral fixed connection or through bolt fixed connection). The guide columns 31 are provided with two and are arranged in parallel, so as to ensure the balance of the clamping module 2 and avoid its deflection; the clamping module 2 can be pushed or pulled to move along the axial direction of the guide column 31, so as to change the distance between the two clamping modules 2 to adapt to the installation of water pipe belts 4 of different lengths. The inner support column 22 inside the clamping module 2 is a closed structure.

[0063] The cross section of the sliding block 243 is C-shaped, and the cross section of the track 244 is gourd-shaped, and the sliding block 243 is buckled on the track 244 to avoid falling off; the sliding block 243 can reciprocatingly slide along the length direction of the track 244.

[0064] Referring to Figure 4The top support cross rod 215 is fixedly connected with the middle part of the top end of the first vertical plate 212, the second vertical plate 213 and the third vertical plate 214 respectively; the surface of the top support cross rod 215 is provided with external threads, the surface of the top support cross rod 215 is provided with a abutment ring 8, the inner wall of the abutment ring 8 is provided with internal threads matched with the external threads, and the abutment ring 8 can be moved along the axis of the top support cross rod 215 by rotating the abutment ring 8. After the handle 245 is rotated to tighten the steel cable 23, the abutment ring 8 is rotated to press the top of the plate body 2421 of the pull plate 242, so that the resistance of the steel cable 23 to rebound and pull the pull assembly 24 is increased, the reliability of the pull function is improved, and water leakage is avoided. A plurality of first friction lines are arranged on the end face of the abutment ring 8 close to the pull plate 242, the first friction lines are in the shape of strip-shaped ribs, and the first friction lines are arranged in a radial outward diverging manner with the axis of the abutment ring 8 as the center; the top end of the side wall of the pull plate 242 close to the abutment ring 8 is provided with second friction lines matched with the first friction lines; when the abutment ring 8 is pressed with the pull plate 242, the bottom end of the first friction line is engaged with the second friction line, so that the abutment ring 8 is prevented from being accidentally rotated, and the probability of loosening of the abutment ring 8 is reduced. The abutment ring 8 can also apply an abutment force to the top end of the pull plate 242 to assist the sliding block 243 in bearing force, so that the top end of the pull plate 242 is prevented from tilting towards the direction of the first cavity 2101, and the structural stability is improved.

[0065] The use steps are as follows: ① the distance between the two clamping modules 2 is adjusted according to the length of the water conveying pipe belt 4, so that the two clamping modules 2 are arranged at the two end positions of the water conveying pipe belt 4; ② the two inner support columns 22 are respectively inserted into the two ends of the inner cavity of the water conveying pipe belt 4, and then the two ends (communicating the two inner support columns 22) of the water conveying pipe belt 4 are respectively placed in the first cavities 2101 of the two clamping modules 2, so that the steel cables 23 are respectively wound around the outer periphery of the water conveying pipe belt 4; ③ the handle 245 is rotated, so that the pull assembly 24 pulls the steel cable 23 to tighten the water conveying pipe belt 4 and the inner support column 22; ④ the cover plate 61 is buckled, the liquid pump is started, water is injected into the inner cavity of the water conveying pipe belt 4 through the metal insertion pipe, and the value of the hydraulic pressure gauge is recorded in real time until the water conveying pipe belt 4 bursts.

[0066] Referring Figure 1 The utility model also includes display 7 and computer, computer installation is below display 7, computer is connected with liquid pump and hydraulic pressure gauge, thereby real -time record liquid pump and the information of hydraulic pressure gauge feedback, display 7 is connected with computer, thereby display pressure information, to facilitate user reading.

[0067] The clamping module 2 can realize clamping and fixing of the end of the water conveying pipe belt 4 to be measured and sealing; the water conveying pipe belt 4 is crimped on the inner support column 22 in a flat form and sealing is realized, so that the formation of wrinkles is avoided, and the problem of reduced test accuracy caused by stress concentration is further avoided. The two clamping modules 2 are respectively installed at the two ends of the water conveying pipe belt 4; the spacing of the two clamping modules 2 is adjustable, so that the clamping and pressure test of the water conveying pipe belt 4 with different lengths are adapted, so that the utility model has the technical advantages of quick installation, high reliability and good compatibility. The hydraulic gauge can realize real-time detection of the internal pressure of the water conveying pipe belt 4, so that the pressure-bearing change of the water conveying pipe belt 4 is completely and accurately presented, so that the pressure resistance limit is accurately tested. The inner support column 22 and the steel cable 23 clamp the water conveying pipe belt 4 from the inner and outer sides respectively, excellent sealing is realized, and convenient loading and unloading forms are provided, so that the operation steps are optimized and the test efficiency is improved.

[0068] In the description of the utility model, it should be pointed out that the directions or position relations indicated by the terms "upper", "lower", "left", "right" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.

[0069] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or connection through an intermediate medium, it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0070] In summary, for those skilled in the art, according to the guidance of the utility model, changes, modifications, replacements, deformations of the utility model made without departing from the principles and spirits of the utility model still fall within the protection scope of the utility model.

Claims

1. A water pipe belt pressure test machine, characterized by: It comprises two clamping modules (2) installed on the workbench (1) and adjustable in spacing. Each clamping module (2) comprises a support assembly (21), an inner support column (22), a steel cable (23), a pulling assembly (24) and a backing plate (5); the support assembly (21) is provided with a first cavity (2101) and a second cavity (2102); the inner support column (22) is transversely arranged in the first cavity (2101); the steel cable (23) is fixedly connected with the support assembly (21) and the pulling assembly (24) at two ends, and the middle part of the steel cable (23) is wound around the outer circumferential position of the inner support column (22); the backing plate (5) is provided with a plurality of and arranged in a stacked manner at the bottom surface position of the first cavity (2101); the pulling assembly (24) is installed in the second cavity (2102). It further comprises a water injection pipe connected with any inner support column (22), a liquid pump connected and communicated with the water injection pipe, a water tank connected and communicated with the liquid pump, and a hydraulic gauge installed on the water injection pipe.

2. The water delivery tube belt pressure test machine of claim 1, wherein: The support assembly (21) comprises a bottom plate (211), a first vertical plate (212), a second vertical plate (213) and a third vertical plate (214), the bottom plate (211) is transversely arranged, the first vertical plate (212) and the second vertical plate (213) are vertically arranged at two ends of the upper surface of the bottom plate (211), and the second vertical plate (213) is vertically arranged at the middle part of the upper surface of the bottom plate (211).

3. The water delivery tube belt pressure test machine of claim 2, wherein: The first cavity (2101) is arranged between the first vertical plate (212) and the second vertical plate (213), and the second cavity (2102) is arranged between the second vertical plate (213) and the third vertical plate (214).

4. The water delivery tube belt pressure test machine of claim 3, wherein: The support assembly (21) further comprises a top support cross bar (215), the two ends of the top support cross bar (215) are fixedly connected with the top of the first vertical plate (212) and the top of the second vertical plate (213) respectively, and the middle part of the top support cross bar (215) is fixedly connected with the top of the second vertical plate (213).

5. The water delivery tube belt pressure test machine of claim 4, wherein: A first insertion hole is formed in the top of the second vertical plate (213), and the steel cable (23) is inserted and arranged in the first insertion hole.

6. The water delivery tube belt pressure test machine of claim 5, wherein: The first vertical plate (212), the second vertical plate (213) and the third vertical plate (214) are arranged in parallel with each other.

7. The water delivery tube belt pressure test machine of claim 6, wherein: The pulling assembly (24) comprises a screw rod (241), a pulling plate (242), a sliding block (243), a track (244) and a handle (245); the screw rod (241) is inserted and arranged in the threaded hole of the pulling plate (242) and connected through threads; the sliding block (243) is fixedly installed at the bottom end of the pulling plate (242), the sliding block (243) is slidingly connected with the track (244), the track (244) is fixedly installed at the bottom surface position of the second cavity (2102), and one end of the screw rod (241) is transversely inserted in the second cavity (2102) and the other end is perpendicularly connected with the handle (245).

8. The water delivery tube belt pressure test machine of claim 7, wherein: The screw rod (241) is perpendicularly connected with the pulling plate (242).

9. The water delivery tube belt pressure test machine of claim 8, wherein: The pull-connection plate (242) is arranged in parallel with the second vertical plate (213), and the track (244) is arranged perpendicularly to the second vertical plate (213).

10. The water delivery tube belt pressure test machine of claim 9, wherein: A concave ring (221) is arranged on the cylindrical side surface of the inner supporting column (22), the steel cable (23) is sleeved at the position of the concave ring (221), and a strip-shaped hole (51) for accommodating the steel cable (23) is arranged on the backing plate (5).

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