Auxiliary clamp for pipe hydraulic test

Abstract

The utility model discloses an auxiliary clamp for a hydraulic test of a pipe, which is characterized in that the opposite surfaces of two support plates are provided with semicircular sleeves, the upper side surface and the lower side surface of one support plate are provided with two L-shaped insertion rods, the upper side surface and the lower side surface of the other support plate are provided with two L-shaped insertion sleeves, and the end parts of the L-shaped insertion rods are inserted into the L-shaped insertion sleeves; a groove is formed in the upper surface of the L-shaped inserting rod, a rack is arranged in the groove, and teeth on the rack are of a right triangle structure. A through groove is formed in the L-shaped inserting sleeve, and a positioning rod is installed in the through groove through an elastic mechanism. Through the self-locking characteristic between the positioning rod and the rack, the two semicircular sleeves can be quickly wrapped and fixed on the outer surface of the pipe, so that the pressure borne by the pipe can be effectively improved, the success rate of a hydraulic result of a test pipe fitting is improved, and the situation that the hydraulic result of the pipe fitting fails due to pipe breakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe hydraulic testing device technical field especially relates to a kind of for pipe hydraulic testing auxiliary fixture. BACKGROUND

[0002] In the detection process of drinking water pipe fittings, hydraulic pressure as the most critical indicator of product, need to be controlled, to prevent due to hydraulic pressure substandard, lead to pipe fittings rupture when using problems etc..Because the pressure that the drinking water pipe fittings required in national standard is greater than the pressure that drinking water pipe material of same specification bears.In actual hydraulic test, pipe material rupture phenomenon often occurs, and the actual pressure that pipe fittings can bear cannot be measured, so that the hydraulic pressure of pipe fittings cannot be judged whether it meets the standard requirements. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of for pipe hydraulic testing auxiliary fixture.

[0004] The utility model provides the following technical scheme: a kind of for pipe hydraulic testing auxiliary fixture, including two support plates, the opposite surface of two support plates is provided with semicircular sleeve, the upper and lower two side surfaces of one of support plates are equipped with two L-shaped insertion rods, the upper and lower two side surfaces of another support plate are equipped with two L-shaped insertion sleeves, and the end of L-shaped insertion rod is inserted in L-shaped insertion sleeve. The upper surface of L-shaped insertion rod is provided with recess, and the inside of recess is provided with rack, and the tooth on rack is right triangle structure. L-shaped insertion sleeve is provided with through slot, and the inside of through slot is equipped with positioning rod by elastic mechanism, and the bottom of positioning rod is matched with the interval of two adjacent teeth on rack.

[0005] Preferably, the elastic mechanism includes two sliding sleeves mounted on the outer surfaces of the positioning rods, a sliding rod is slidably mounted in the sliding sleeves, the bottom of the sliding rod is connected to the upper surface of the L-shaped insertion sleeve, a top block is mounted on the top of the sliding rod, a first spring is sleeved on the outer surface of the sliding rod, and the two ends of the first spring are respectively abutted with the top block and the sliding sleeve.

[0006] Preferably, the outer surface of the support plate is provided with a connecting groove, and the outer surface of the semicircular sleeve is provided with a connecting block matched with the connecting groove.

[0007] Preferably, the top portions of the two positioning rods located on the same side of the support plate are jointly provided with a horizontal rod.

[0008] Preferably, the outer surface of the L-shaped insertion sleeve is provided with a limiting groove, and the outer surface of the L-shaped insertion rod is provided with a limiting block arranged in the limiting groove.

[0009] Preferably, the L-shaped insert has an inner cavity, a guide rod is inserted inside the inner cavity, and the end of the guide rod is connected to the inner wall of the L-shaped sleeve. A second spring is sleeved on the outer surface of the guide rod, and the two ends of the second spring abut against the inner wall of the L-shaped sleeve and the L-shaped insert, respectively.

[0010] Compared with existing technologies, the beneficial effects of this utility model are:

[0011] (1) This utility model can quickly wrap and fix two semi-circular sleeves on the outer surface of the pipe by means of the self-locking characteristic between the positioning rod and the rack, thereby effectively increasing the pressure that the pipe can withstand, increasing the success rate of the hydraulic test results of the pipe fitting, and avoiding the failure of the hydraulic test results of the pipe fitting due to pipe breakage.

[0012] (2) The present invention facilitates the quick replacement of the semi-circular sleeve by setting the connecting groove and connecting block. By replacing the semi-circular sleeve of different sizes, it can be used for hydraulic testing of pipe fittings of different sizes, with a wide range of applications and strong flexibility. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a frontal cross-sectional view of the present invention.

[0015] Figure 3 for Figure 1 Enlarged diagram of A in the middle;

[0016] Figure 4 for Figure 2 Enlarged diagram of B in the diagram. Detailed Implementation

[0017] like Figures 1 to 4 As shown, an auxiliary fixture for hydraulic testing of pipes includes a support plate 100, a semi-circular sleeve 101, an L-shaped insert rod 102, an L-shaped insert sleeve 103, a groove 104, a rack 105, a through groove 106, a positioning rod 107, an elastic mechanism 200, a sliding sleeve 201, a sliding rod 202, a top block 203, a first spring 204, a connecting groove 300, a connecting block 301, a crossbar 400, a limiting groove 500, a limiting block 501, an inner cavity 600, a guide rod 601, and a second spring 602.

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. 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.

[0021] As shown in Figures 1 to 4 One of the two support plates 100 is provided with two L-shaped insertion rods 102 on the upper and lower sides, and the other support plate 100 is provided with two L-shaped insertion sleeves 103 on the upper and lower sides. The end of the L-shaped insertion rod 102 is inserted into the L-shaped insertion sleeve 103. When the two semicircular sleeves 101 bear the pressure of the pipe material, sufficient structural strength can be provided to support the semicircular sleeves 101. The upper surface of the L-shaped insertion rod 102 is provided with a groove 104, and the inside of the groove 104 is provided with a rack 105. Since the rack 105 is arranged in the groove 104, it will not scratch the inner wall of the L-shaped insertion sleeve 103. The teeth on the rack 105 are in a right triangle structure.

[0022] A through groove 106 is formed in the L-shaped insertion sleeve 103, and a positioning rod 107 is arranged in the through groove 106 through an elastic mechanism 200. The bottom of the positioning rod 107 is adapted to the spacing between the two adjacent teeth of the rack 105. The elastic mechanism 200 is used to exert a continuous downward force on the positioning rod 107 to ensure that it is always in meshing state with the rack 105. When the inclined surface of the tooth and the inclined surface of the positioning rod 107 are extruded, the positioning rod 107 can be driven to move upward. When the vertical surface of the tooth and the vertical surface of the positioning rod 107 abut, the L-shaped insertion rod 102 can be prevented from sliding outward from the L-shaped insertion sleeve 103, realizing self-locking.

[0023] The outer surface of the support plate 100 is provided with a connecting groove 300, and the outer surface of the semicircular sleeve 101 is provided with a connecting block 301 matched with the connecting groove 300. By inserting the connecting block 301 into the connecting groove 300, the semicircular sleeve 101 can be installed, which is very convenient to disassemble and assemble. By replacing semicircular sleeves 101 of different sizes, the device can be applied to liquid pressure tests of pipe fittings of different sizes, has a wide range of applications and high flexibility. The outer surface of the L-shaped insertion sleeve 103 is provided with a limiting groove 500, and the outer surface of the L-shaped insertion rod 102 is provided with a limiting block 501 arranged in the limiting groove 500. The limiting groove 500 and the limiting block 501 can limit the L-shaped insertion rod 102, so as to prevent the L-shaped insertion rod 102 from being separated from the L-shaped insertion sleeve 103, which can prevent the overall structure from being scattered and lost.

[0024] The elastic mechanism 200 includes two sliding sleeves 201 arranged on the outer surfaces of the two positioning rods 107. A sliding rod 202 is slidably arranged in the sliding sleeve 201, and the bottom of the sliding rod 202 is connected to the upper surface of the L-shaped insertion sleeve 103. A top block 203 is arranged on the top of the sliding rod 202. A first spring 204 is arranged on the outer surface of the sliding rod 202, and the two ends of the first spring 204 are respectively abutted with the top block 203 and the sliding sleeve 201. The positioning rod 107 can only slide in the vertical direction due to the arrangement of the sliding rod 202 and the sliding sleeve 201, and a continuous downward force can be applied to the positioning rod 107 under the elastic force of the first spring 204. Therefore, when the inclined surface of the tooth on the rack 105 is pressed against the inclined surface at the bottom of the positioning rod 107, the positioning rod 107 is driven to slide upward, so that the L-shaped insertion rod 102 can be smoothly inserted into the L-shaped insertion sleeve 103. When the L-shaped insertion rod 102 is pulled outward, the vertical surface at the bottom of the positioning rod 107 is abutted with the vertical surface of the tooth, so as to prevent the L-shaped insertion rod 102 from being pulled out of the L-shaped insertion sleeve 103. Therefore, when the two semicircular sleeves 101 are closed, the self-locking purpose can be achieved, and the two semicircular sleeves 101 can be quickly wrapped and fixed on the outer surface of the pipe, thereby improving the operation efficiency.

[0025] The top portions of the two positioning rods 107 on the same side of the support plate 100 are jointly provided with a cross rod 400. When the positioning rod 107 is pulled upward to separate the bottom thereof from the tooth, the L-shaped insertion rod 102 can be pulled out of the L-shaped insertion sleeve 103 without obstruction, so as to separate the semicircular sleeve 101 from the surface of the pipe. Since the four-position locking mode is adopted, the structural strength of the whole clamp can be greatly improved. Therefore, the two positioning rods 107 can be simultaneously lifted by pulling the cross rod 400, so that the four-position locking mode can be achieved by using both hands.

[0026] The inner cavity 600 is internally provided with a guide rod 601, the end of the guide rod 601 is connected with the inner wall of the L-shaped insertion sleeve 103, the outer surface of the guide rod 601 is sleeved with a second spring 602, and the two ends of the second spring 602 are respectively abutted with the inner wall of the L-shaped insertion sleeve 103 and the L-shaped insertion rod 102; when two hands are used to pull two cross rods 400 to drive the positioning rod 107 to be separated from the teeth, the L-shaped insertion rod 102 can be pushed to slide in the L-shaped insertion sleeve 103 through the elastic force of the second spring 602, and two semicircular sleeves 101 are separated, so that the dismounting efficiency of the semicircular sleeves 101 from the pipe surface is improved.

[0027] The working principle of the utility model is as follows:

[0028] In use, the semicircular sleeves 101 matched with the pipe size are selected and installed on the support plates 100, then the two support plates 100 are pushed inward, and the L-shaped insertion rod 102 is driven to slide in the L-shaped insertion sleeve 103; since the first spring 204 continuously applies a downward thrust to the positioning rod 107, when the inclined surface of the teeth on the rack 105 is pressed with the inclined surface at the bottom of the positioning rod 107, the positioning rod 107 is driven to slide upward, so that the L-shaped insertion rod 102 can be smoothly inserted into the L-shaped insertion sleeve 103; when the L-shaped insertion rod 102 is pulled outward, the vertical surface at the bottom of the positioning rod 107 is abutted with the vertical surface of the teeth, so that the L-shaped insertion rod 102 can be prevented from being pulled out of the L-shaped insertion sleeve 103, therefore, when the two semicircular sleeves 101 are closed, the self-locking purpose can be achieved, the two semicircular sleeves 101 can be quickly wrapped and fixed on the outer surface of the pipe, so that the pressure borne by the pipe can be effectively improved, the success rate of the hydraulic test result of the pipe fitting is improved, and the situation that the hydraulic test result of the pipe fitting fails due to pipe rupture is avoided; after the hydraulic test is completed, two hands are used to pull two cross rods 400 to drive the positioning rod 107 to be separated from the teeth, the L-shaped insertion rod 102 can be pushed to slide in the L-shaped insertion sleeve 103 through the elastic force of the second spring 602, and the two semicircular sleeves 101 are separated, so that the semicircular sleeves 101 can be quickly dismounted.

[0029] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An auxiliary fixture for hydraulic testing of pipe, comprising two support plates (100), characterized in that: Both opposite surfaces of the support plate (100) are provided with a semicircular sleeve (101), the upper and lower surfaces of one of the support plates (100) are provided with two L-shaped insertion rods (102), the upper and lower surfaces of the other support plate (100) are provided with two L-shaped insertion sleeves (103), the end of the L-shaped insertion rod (102) is inserted into the L-shaped insertion sleeve (103), the upper surface of the L-shaped insertion rod (102) is provided with a groove (104), the inside of the groove (104) is provided with a rack (105), the teeth of the rack (105) are in a right triangle structure, the L-shaped insertion sleeve (103) is provided with a through groove (106), the inside of the through groove (106) is provided with a positioning rod (107) through an elastic mechanism (200), and the bottom of the positioning rod (107) is matched with the distance between two adjacent teeth of the rack (105).

2. An auxiliary fixture for hydraulic testing of pipe according to claim 1, characterized in that: The elastic mechanism (200) includes two sliding sleeves (201) mounted on the outer surfaces of the positioning rod (107), the inside of the sliding sleeve (201) is slidably provided with a sliding rod (202), the bottom of the sliding rod (202) is connected with the upper surface of the L-shaped insertion sleeve (103), the top of the sliding rod (202) is provided with a top block (203), the outer surface of the sliding rod (202) is provided with a first spring (204), and the two ends of the first spring (204) are respectively abutted with the top block (203) and the sliding sleeve (201).

3. An auxiliary fixture for hydraulic testing of pipe, according to claim 1, characterized in that: The outer surface of the support plate (100) is provided with a connecting groove (300), and the outer surface of the semicircular sleeve (101) is provided with a connecting block (301) matched with the connecting groove (300).

4. An auxiliary fixture for hydraulic testing of pipe, according to claim 1, characterized in that: The tops of two positioning rods (107) located on the same side of the support plate (100) in the height direction are jointly provided with a horizontal rod (400).

5. An auxiliary fixture for hydraulic testing of pipe, according to claim 4, characterized in that: The outer surface of the L-shaped insertion sleeve (103) is provided with a limiting groove (500), and the outer surface of the L-shaped insertion rod (102) is provided with a limiting block (501) arranged in the limiting groove (500).

6. An auxiliary fixture for hydraulic testing of pipe, as claimed in claim 1, wherein: The inside of the L-shaped insertion rod (102) is provided with an inner cavity (600), the inner cavity (600) is provided with a guide rod (601) inserted therein, the end of the guide rod (601) is connected with the inner wall of the L-shaped insertion sleeve (103), the outer surface of the guide rod (601) is provided with a second spring (602), and the two ends of the second spring (602) are respectively abutted with the inner wall of the L-shaped insertion sleeve (103) and the L-shaped insertion rod (102).

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