Hydraulic testing device for pipe fitting

Abstract

The utility model provides a hydraulic testing device for pipe fittings, and belongs to the technical field of testing tools. The problem of how to improve the applicability of the pipe fitting hydraulic testing device is solved. The pipe fitting hydraulic testing device comprises a bottom plate and connecting seats, a plurality of strip-shaped sliding rails are arranged on the outer wall of the bottom plate at intervals in the circumferential direction, the connecting seats are detachably connected to the sliding rails, and placing areas for installing pipe fittings are formed in the positions, between the connecting seats, of the bottom plate. The side wall, facing the containing area, of each connecting base is detachably connected with a blocking piece used for blocking the end opening of the pipe fitting, one blocking piece is provided with a water passing pipe, and the water passing pipe penetrates through the closed end of the blocking piece. The hydraulic testing device for the pipe fittings can improve the applicability of the hydraulic testing device for different pipe fittings.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection tools and relates to a hydraulic testing device for pipe fittings. Background Art

[0002] Pipe fittings are a general term for components in a pipeline system that play roles such as connection, control, direction change, flow division, sealing, and support. They are generally manufactured by extrusion molding, injection molding, etc. After manufacturing, samples of the formed pipe fittings are taken and a series of tests are carried out. The pressure resistance test is one of the many tests for pipe fittings.

[0003] For example, a multi-station pipe joint water pressure testing device disclosed in a Chinese patent (publication number: CN117110068A) includes: a support housing; a horizontal support plate is installed on the top of the support housing, and a rotating disk is rotatably connected to the front side of the upper end surface of the horizontal support plate through a vertical rotating shaft. The rotating disk is fixedly connected to the vertical rotating shaft, and the vertical rotating shaft is rotatably connected to the horizontal support plate.

[0004] Combined with paragraphs 0031, 0033, 0042, and 0043 of the description of the comparative document, briefly speaking, this device clamps and fixes the pipe joint through a clamping mechanism. After blocking its two pipe orifices, the controller controls the high-pressure water pump to start, introduces the clear water inside the water storage tank, and the water pressure sensor senses the water pressure. On this basis, the rotating disk drives the four clamping mechanisms to rotate, realizes the position transformation of the workstations to realize the docking of different pipe joints with the test components, and thus achieves the effect of improving the test efficiency.

[0005] However, in practical applications, the above-mentioned testing device has great drawbacks. Specifically, there are many types of pipe fittings joints produced in the prior art. In addition to the tee joints mentioned in the comparative document, there are also cross-shaped pipe fittings and L-shaped pipe fittings at different angles, etc. Using the above device cannot test these pipe fittings with different shapes, and has high limitations in use and poor applicability. Summary of the Utility Model

[0006] The purpose of the utility model is to address the above problems existing in the prior art and propose a hydraulic testing device for pipe fittings. The technical problem to be solved by the utility model is: how to improve the applicability of the hydraulic testing device for pipe fittings.

[0007] The object of the present utility model can be achieved by the following technical solutions: A hydraulic testing device for pipe fittings, comprising a bottom plate and a connecting seat. A plurality of strip-shaped slide rails are arranged at intervals along the circumferential direction on the outer wall of the bottom plate. The connecting seat is detachably connected to each of the plurality of slide rails. A placement area for installing pipe fittings is formed on the bottom plate between the plurality of connecting seats. A plugging member for plugging the port of the pipe fitting is detachably connected to the side wall of each connecting seat facing the placement area. And a water pipe is provided on one of the plugging members, and the water pipe penetrates through the closed end of the plugging member.

[0008] When performing a hydraulic test on a pipe fitting, this hydraulic testing device for pipe fittings specifically uses the bottom plate to carry the pipe fitting to be tested. The specific principle of this case is as follows: The plugging members are connected to the ports of the pipe fitting in a plugging manner. After placing the pipe fitting on the bottom plate, the connecting seats are installed on the corresponding slide rails on the bottom plate according to the ports of the pipe fitting. On the premise of ensuring the stable installation of each connecting seat, the bottom plate and each connecting seat cooperate to form a placement area for placing the pipe fitting, and each plugging member is positioned through each connecting seat, thereby ensuring the stable assembly of the pipe fitting in the placement area. Water is injected into the pipe fitting through the water pipe on one of the plugging members, thereby achieving the effect of injecting water and pressurizing the pipe fitting. It is worth mentioning that in the previous description, there are at least three slide rails provided in cooperation with the bottom plate. At the same time, the user can selectively install the connecting seat and the plugging member on any two slide rails or on all three slide rails, so that this hydraulic testing device for pipe fittings can be adapted to double-headed pipe fittings and tee pipe fittings in the prior art. On the basis of this structure, the number of slide rails provided on the bottom plate is not simply three. On the premise that the peripheral wall space of the bottom plate is sufficient, the number of slide rails can be set as many as possible. At the same time, during actual operation, the connecting seat and the plugging member can be installed on the corresponding slide rails according to the actual shape of the pipe fitting to ensure that this hydraulic testing device can be adapted to cross-shaped pipe fittings and other shaped pipe fittings, effectively improving the applicability of the hydraulic testing device.

[0009] In the above-mentioned pipe fitting hydraulic testing device, several of the slide rails include four straight slide rails and at least two inclined slide rails. The angle between every two adjacent straight slide rails is ninety degrees. The two inclined slide rails are located on both sides of one of the straight slide rails, and the angle between the two inclined slide rails is ninety degrees. As a specific solution, a large number of slide rails can be actually classified into two groups. One group is four straight slide rails, and the other group is at least two inclined slide rails. The four inclined slide rails are arranged at intervals along the circumference of the bottom plate, and the angle between every two straight slide rails is 90 degrees. That is to say, when using the matching connecting seat in this setting method, the maximum test work can be carried out on cross-shaped pipe fittings. In addition, it can also be used to test 90-degree double-headed pipe fittings and T-shaped tees. At the same time, through the setting of the two inclined slide rails, the bottom plate is matched with each straight slide rail and each inclined slide rail to realize the detection of 45-degree double-headed pipe fittings, 135-degree double-headed pipe fittings, and even five-way pipe fittings and six-way pipe fittings.

[0010] In the above-mentioned pipe fitting hydraulic testing device, the bottom plate includes a central part and several plate-shaped extension parts. The several extension parts are arranged at intervals along the circumference of the central part, and the several slide rails are adjustment holes opened along the length direction on the upper side surfaces of the respective extension parts. Specifically, the bottom plate is composed of a central part and several extension parts, and the two are of an integral structure. As a further solution, to ensure the applicability of this pipe fitting hydraulic testing device, the number of extension parts arranged circumferentially on the central part is as many as possible when the space is sufficient, and the specific number is the same as the number of slide rails. The several adjustment holes are arranged on the respective extension parts corresponding to the slide rails one by one, so that the operator can selectively install the connecting seat on some extension parts according to the specific shape of the pipe fitting, so as to meet the requirements of detecting different pipe fittings and ensure the applicability of this pipe fitting hydraulic testing device.

[0011] In the above-mentioned pipe fitting hydraulic testing device, the upper side surfaces of the respective extension parts have lower tooth patterns, and the bottom surfaces of the respective connecting seats have upper tooth patterns. The connecting seats and the extension parts are positioned by the upper tooth patterns meshing with the lower tooth patterns. Through this setting, when each connecting seat is placed on the extension part, the connecting seat can be firmly positioned on the extension part by the meshing cooperation between the upper tooth pattern and the lower tooth pattern.

[0012] In the above-mentioned pipe fitting hydraulic testing device, several of the plugging members are plug caps, and several of the plug caps are respectively a plurality of first plug caps and second plug caps. The second plug cap is provided with the water pipe. A connecting groove is formed in the connecting seat. An abutting component is provided on two of the connecting seats. The abutting component includes an abutting bolt. The abutting bolt is detachably connected in the connecting groove and abuts against the closed end of the first plug cap. The closed end of the second plug cap abuts against the outer wall of the third connecting seat and enables the water pipe to pass through the connecting groove. Specifically, the first plug cap is always kept at the end of the pipe fitting by the abutting bolt, so as to seal the port at this end of the pipe fitting. The closed end of the second plug cap is abutted by the side wall of the connecting seat, so that the second plug cap is always kept at the end of the pipe fitting, so as to seal the port at this end of the pipe fitting. At the same time, the water pipe for connecting the external water pipe passes through the connecting groove formed in the connecting seat, thus ensuring the convenience of water path connection.

[0013] In the above-mentioned pipe fitting hydraulic testing device, each of the connecting seats is in a rectangular block shape and is arranged vertically. The connecting groove is in a long strip shape and is arranged vertically. The abutting component further includes a connecting block. The connecting block slides in the connecting groove. The abutting bolt is screwed to the connecting block. The abutting bolt is connected to the threaded hole formed in the connecting block by screwing, so as to ensure the connection stability of the abutting bolt. At the same time, the connecting groove is arranged in a long strip shape, so as to ensure that when hydraulic testing is carried out on pipe fittings with different sizes, the connecting block can slide up and down in the connecting groove, so that the abutting bolt fully abuts against the first plug cap, thereby ensuring the applicability of the pipe fitting hydraulic testing device.

[0014] In the above-mentioned pipe fitting hydraulic testing device, the connecting block is in a cuboid shape and is arranged horizontally. Chute grooves are formed on both sides of the connecting block. The inner walls on both sides of the connecting groove are embedded in the chute grooves and are in contact with the bottom wall of the chute grooves. Through the cooperation between the chute groove wall and the side wall of the connecting groove, the movement track of the connecting block is limited, avoiding the situation of jamming during the position adjustment of the connecting block.

[0015] In the above-mentioned pipe fitting hydraulic testing device, fixing blocks are provided on the bottom surfaces of the extension parts. Locking holes are vertically formed in each of the connecting seats. Locking bolts detachably connected to the fixing blocks are inserted into the locking holes. When installing the pipe fitting on the bottom plate, the connecting seat can be adjusted back and forth on the extension part along the length direction of the adjustment hole, so as to ensure the adaptability of the pipe fitting hydraulic testing device. At the same time, after the adjustment is completed, the connecting seat can be firmly positioned on the extension part by screwing and locking the locking bolt with the threaded hole formed in the fixing block, so as to ensure the connection stability between the first plug cap and the second plug cap, and further ensure the accuracy of subsequent detection.

[0016] In the above-mentioned pipe fitting hydraulic testing device, a receiving groove is formed in the lower side surface of each of the extension parts along the length direction and is arranged around the adjustment hole, and the fixing block is slidably connected in the receiving groove. The fixing block is assembled through the receiving groove to prevent the fixing block from protruding too much from the bottom surface of the extension part, and at the same time, the receiving groove can also play a guiding role for the fixing block.

[0017] In the above-mentioned pipe fitting hydraulic testing device, there are two adjustment holes which are arranged at intervals along the width direction of the extension part, and there are two locking holes which are located on both sides of the connection groove, and each adjustment hole corresponds to each locking hole in position. When the worker adjusts the position of the connection seat, the connection seat can be limited along the length direction of the extension part, so as to ensure the convenience and accuracy of the adjustment.

[0018] Compared with the prior art, the present pipe fitting hydraulic testing device has the following advantages:

[0019] 1. The pipe fitting to be tested is installed through the placement area formed by the bottom plate and each slide rail in cooperation with each connection seat. The ports of the pipe fitting are sealed by the plugging members installed on each connection seat, and water is introduced into the pipe fitting through the water pipe on one of the plugging members to pressurize the water, so as to realize the pressure resistance test of the pipe fitting. The user can install the connection seat on some of the slide rails according to the specific shape of the pipe fitting, and cooperate with the plugging member to realize the test of different pipe fittings, ensuring the applicability of the present pipe fitting hydraulic testing device.

[0020] 2. The several slide rails include four straight slide rails and at least two inclined slide rails. Every two adjacent straight slide rails are spaced 90 degrees apart. The two inclined slide rails are located on both sides of one of the straight slide rails, and the two inclined slide rails are spaced 90 degrees apart.

[0021] 3. The bottom plate is specifically composed of a central part and several extension parts formed on the circumference of the central part. The several slide rails are adjustment holes and are arranged on the several extension parts in one-to-one correspondence. The operator can install the connection seat on some of the extension parts according to the specific shape of the pipe fitting, and install the plugging member on each connection seat, so as to ensure the applicability of the present pipe fitting hydraulic testing device.

[0022] 4. The tightening bolt is screwed with the connecting block and is embedded in the central groove on the first plug cover, and the connecting block in the tightening assembly can slide in the connecting groove opened on the connection seat, so as to realize the position adjustment of the tightening bolt according to the size of the pipe fitting.

[0023] 5. The connection seat can slide along the length direction on the extension part, and is locked by the cooperation of the connecting block and the locking bolt. At the same time, through the cooperation of the adjustment hole, the receiving groove and the connecting block, the sliding direction of the connection seat is restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present pipe fitting hydraulic testing device.

[0025] Figure 2 It is a schematic structural diagram of the bottom plate.

[0026] Figure 3 It is a schematic structural diagram of another perspective of the bottom.

[0027] Figure 4 It is a schematic structural diagram of the connecting seat.

[0028] Figure 5 It is a schematic structural diagram of another perspective of the connecting seat.

[0029] Figure 6 It is a schematic structural diagram of the pressing component.

[0030] Figure 7 It is a schematic structural diagram of the plug cover one.

[0031] Figure 8 It is a schematic structural diagram of the plug cover two.

[0032] In the figure,

[0033] 1. Bottom plate; 11. Extension part; 111. Adjustment hole; 112. Fixed block; 113. Accommodation groove; 114. Lower tooth pattern; 12. Central part;

[0034] 2. Connecting seat; 21. Connecting groove; 22. Locking hole; 221. Locking bolt; 23. Stabilizing part; 24. Upper tooth pattern;

[0035] 3. Pressing component; 31. Pressing bolt; 32. Connecting block; 321. Sliding groove;

[0036] 4. Plug cover one; 41. Central groove;

[0037] 5. Plug cover two; 51. Water pipe;

[0038] 6. Receiving groove;

[0039] 7. Placing area. Detailed implementation manners

[0040] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0041] Such as Figure 1 And Figure 2As shown in the figure, the hydraulic testing device for pipe fittings includes a bottom plate 1 and several sliding rails. The several sliding rails include four straight sliding rails and at least two inclined sliding rails. The four straight sliding rails are circumferentially spaced around the bottom plate, and the included angle between every two straight sliding rails is 90 degrees. The two inclined sliding rails are located on both sides of one of the straight sliding rails, and the included angle between the two inclined sliding rails is 90 degrees. The bottom plate 1 specifically includes a square central part 12 and an extension part 11 integrally formed on the circumference of the central part 12. The number of extension parts 11 is the same as the number of several sliding rails, and the several sliding rails are correspondingly arranged on the several extension parts 11. Specifically, taking Figure 1 and Figure 2 as an example, there are specifically six extension parts 11, which can be respectively regarded as the first extension part, the second extension part, the third extension part, the fourth extension part, the fifth extension part and the sixth extension part. Among them, the first extension part, the second extension part, the third extension part and the fourth extension part are circumferentially spaced along the central part 12, and the four of them cooperate with the central part 12 to form a cross-shaped structure. The included angle between the first extension part and the second extension part, the second extension part and the third extension part, the third extension part and the fourth extension part, and the fourth extension part and the first extension part are all 90 degrees. The fifth extension part and the sixth extension part are located on one side of the second extension part and the fourth extension part, that is, on both sides of the first extension part, and the fifth extension part and the sixth extension part are symmetrically arranged relative to the first extension part, that is, the fifth extension part and the sixth extension part are spaced 90 degrees. On the basis of this scheme, on the premise of sufficient space, a seventh extension part, an eighth extension part, etc. can be selectively formed outside the central part. When in use, any two extension parts 11 are selected according to the specific shape of the pipe fitting, which can be adapted to straight pipes, 45-degree pipe fittings, 90-degree pipe fittings, 135-degree and other types of double-headed pipe fittings in the prior art. Selecting any three extension parts 11 can be adapted to the three-way pipe fittings in the prior art. Selecting any four extension parts 11 can be adapted to the four-way pipe fittings (cross pipe fittings) in the prior art.

[0042] Combined with Figures 3 - 5, several slide rails are specifically two strip-shaped adjustment holes 111 formed along the length direction on each of several extension parts 11, and the two adjustment holes 111 are arranged at intervals along the width direction of the extension part 11. A plurality of strip-shaped receiving grooves 113 are formed on the bottom surface of each extension part 11, and each receiving groove 113 is correspondingly arranged around each receiving groove 113. A square-shaped fixing block 112 is embedded in the receiving groove 113, and a fixing hole is formed on the fixing block 112. This hydraulic testing device for pipe fittings includes several vertically arranged connecting seats 2 in the shape of a cuboid. A strip-shaped connecting groove 21 that penetrates the lower end face is formed on the side wall of the connecting seat 2, and two locking holes 22 that penetrate both ends of the connecting seat 2 are formed vertically on the connecting seat 2. The two locking holes 22 correspond to the positions of the two adjustment holes 111 one by one. A locking bolt 221 is inserted into each locking hole 22 of the connecting seat 2, and each locking bolt 221 is screwed into the fixing hole on each fixing block 112 correspondingly. In addition, upper tooth patterns 24 are provided on the upper side surface of each extension part 11, and lower tooth patterns 114 are provided at the bottom of each connecting seat 2. When the connecting seat 2 is placed on the extension part 11, the upper tooth pattern 24 meshes with the lower tooth pattern 114.

[0043] Combined with Figures 6 - 8 , the three connecting seats 2 cooperate with the central part 12 to form a placement area 7 for placing pipe fittings. One side of each connecting seat 2 faces the placement area 7, and at the two side edges of the outer wall on the other side, right trapezoid-shaped stabilizing parts 23 are integrally formed. A receiving groove 6 communicating with the adjustment hole 111 is formed among the two stabilizing parts 23 and the outer wall of the connecting seat 2. The outer end of the water pipe 51, the tightening bolt 31, and one end of the connecting pipe all extend into the receiving groove 6. This hydraulic testing device for pipe fittings further includes a tightening assembly 3 composed of a tightening bolt 31 and a connecting block 32. The connecting block 32 is specifically in the shape of a cuboid and is horizontally arranged. A threaded hole penetrating both ends of the connecting block 32 is formed on the connecting block 32, and sliding grooves 321 are formed near the middle of its two outer walls. The connecting block 32 is slidably connected in the adjustment hole 111, so that the two side walls of the adjustment hole 111 are correspondingly embedded in the two sliding grooves 321. This hydraulic testing device for pipe fittings further includes several sealing members, which specifically include several first plugs 4 and a second plug 5. A central groove 41 is formed at the center of the closed end of the first plug 4, and a water pipe 51 is integrally formed at the closed end of the second plug 5.

[0044] The set numbers of the tightening assembly 3 and the first plug 4 are determined according to the specific shape of the pipe fitting. This embodiment is specifically for a tee pipe fitting, such as Figure 1As shown, three extensions 11 and three connecting seats 2 are selected. At the same time, two sets of tightening components 3 are selected and assembled on two of the connecting seats 2. Specifically, for the installation of the tightening component 3, only the fixing block 112 needs to be inserted from the lower end of the adjustment hole 111, and the tightening bolt 31 is screwed into the threaded hole opened on the connecting block 32. At the same time, one end cap 4 is snapped into two of the ports of the pipe fitting, and the other end cap 5 is snapped into the remaining port. Then, the pipe fitting is placed horizontally. After the end cap 5 abuts against the third connecting seat 2 and the water pipe 51 passes through the connecting groove 21, the two tightening bolts 31 are respectively inserted into the central grooves 41 on the two end caps 4 one by one. Then, by screwing each tightening bolt 31, after each end cap 4 is tightened by the tightening bolt 31, it is ensured that each end of the pipe fitting is firmly positioned. Then, the locking bolts 221 on each connecting seat 2 are screwed and locked to further ensure that the pipe fitting is firmly locked. Finally, the external water pipe is docked with the water pipe 51 and water is passed into the pipe fitting to complete the pressure test work of the pipe fitting.

[0045] On the basis of the above, as a further solution, annular grooves are circumferentially formed on the outer walls of each end cap 4 and each end cap 5 near the ports, and sealing rings are embedded in the annular grooves to ensure more complete sealing of each end port of the pipe fitting and avoid water leakage during the test process.

[0046] Secondly, before the detection, the worker can select the appropriate end cap 4 and end cap 5 according to the specific size of the pipe fitting nozzle. At the same time, according to the specific size of the end cap 4, the position of the fixing block 112 in the adjustment hole 111 in the tightening component 3 is adjusted so that the tightening bolt 31 is always embedded in the central groove 41 of the end cap 4.

[0047] In addition, before the detection, the worker can also adjust the position of each connecting seat 2 in a sliding manner on each extension 11 according to the specific length of the pipe fitting to ensure that the bottom wall of the central groove 41 of the two end caps 4 abuts against the tightening bolt 31 and the end face of the closed end of the end cap 5 abuts against the side wall of the third connecting seat 2 in the initial state. At the same time, after the position of each connecting seat 2 is adjusted, each connecting seat 2 is initially locked in a meshing manner through the upper tooth pattern 24 and the lower tooth pattern 114 on the extension 11 to avoid the position of the connecting seat 2 from shifting.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0049] Although terms such as base plate 1, extension part 11, adjustment hole 111, fixing block 112, receiving groove 113, lower tooth pattern 114, central part 12, connecting seat 2, connecting groove 21, locking hole 22, locking bolt 221, stabilizing part 23, upper tooth pattern 24, pressing component 3, pressing bolt 31, connecting block 32, sliding groove 321, plug cover one 4, central groove 41, plug cover two 5, water pipe 51, receiving groove 6, placing area 7, etc. are used more frequently in this text, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A pipe hydraulic testing device, comprising a base plate (1) and a connecting seat (2), characterized in that: A plurality of strip-shaped slide rails are arranged at intervals along the circumferential direction on the outer wall of the base plate (1), and the connection seats (2) are detachably connected to the plurality of slide rails. A placement area (7) for installing pipe fittings is formed between the plurality of connection seats (2) on the base plate (1), and a plugging piece for plugging a pipe fitting port is detachably connected to the side wall of each connection seat (2) facing the placement area (7), and one of the plugging pieces has a water pipe (51), and the water pipe (51) is arranged to pass through the closed end of the plugging piece.

2. The pipe hydraulic testing device according to claim 1, characterized in that: The plurality of slide rails include four straight slide rails and at least two inclined slide rails, the angle between every two adjacent straight slide rails is ninety degrees, the two inclined slide rails are located on both sides of one of the straight slide rails, and the angle between the two inclined slide rails is ninety degrees.

3. The pipe hydraulic testing device according to claim 1 or 2, characterized in that: The bottom plate (1) comprises a central portion (12) and a plurality of plate-shaped extension portions (11), wherein the plurality of extension portions (11) are arranged at intervals along the circumference of the central portion (12), and the plurality of slide rails are adjustment holes (111) provided on the upper side plate surfaces of the extension portions (11) along the length direction.

4. The pipe hydraulic testing device according to claim 3, characterized in that: The upper side plate surface of each extension part (11) is provided with a lower tooth pattern (114), and the bottom surface of each connection seat (2) is provided with an upper tooth pattern (24). The connection seat (2) and the extension part (11) are positioned by the upper tooth pattern (24) engaging with the lower tooth pattern (114).

5. The pipe hydraulic testing device according to claim 3, characterized in that: Several of the blocking parts are blocking covers, and the several blocking covers are respectively several blocking covers one (4) and blocking covers two (5), the blocking covers two (5) are provided with the water pipe (51), the connecting seat (2) is provided with a connecting groove (21), two of the connecting seats (2) are provided with a tightening assembly (3), the tightening assembly (3) comprises a tightening bolt (31), the tightening bolt (31) is detachably connected in the connecting groove (21) and is tightened against the closed end of the blocking cover one (4), the closed end of the blocking cover two (5) is in contact with the outer wall of the third connecting seat (2) and allows the water pipe (51) to pass through the connecting groove (21).

6. The pipe hydraulic testing device according to claim 5, characterized in that: Each of the connecting seats (2) is in the shape of a rectangular block and is arranged vertically, the connecting groove (21) is in the shape of a long strip and is arranged vertically, and the clamping assembly (3) also includes a connecting block (32), the connecting block (32) slides in the connecting groove (21), and the clamping bolt (31) is threadedly connected to the connecting block (32).

7. The pipe hydraulic testing device according to claim 6, characterized in that: The connecting block (32) is in a rectangular parallelepiped shape and is arranged horizontally. Slide grooves (321) are provided on both sides of the connecting block (32). The inner walls on both sides of the connecting groove (21) are embedded in the slide grooves (321) and fit with the bottom walls of the slide grooves (321).

8. The pipe hydraulic testing device according to claim 7, characterized in that: A fixing block (112) is provided on the bottom surface of each extension portion (11), and a locking hole (22) is vertically opened on each connection seat (2). A locking bolt (221) detachably connected to the fixing block (112) is passed through each locking hole (22).

9. The pipe hydraulic testing device according to claim 8, characterized in that: A receiving groove (113) arranged around the adjusting hole (111) is provided on the lower side plate surface of each extension portion (11) along the length direction, and the fixing block (112) is slidably connected in the receiving groove (113).

10. The pipe hydraulic testing device according to claim 9, characterized in that: There are two adjusting holes (111) arranged at intervals along the width direction of the extension portion (11); there are two locking holes (22) located on both sides of the connecting groove (21); and the positions of the adjusting holes (111) and the locking holes (22) correspond one to one.

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