A valve detection device

Abstract

The present invention provides a valve detection device, which belongs to the technical field of valve air tightness detection. It comprises an operating platform, one side of the operating platform is fixedly connected to a test platform, one side of the test platform is fixedly connected to a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is fixedly connected to a test movable disk, and the upper part of the test platform near the test movable disk is fixedly connected to a test fixed disk. The present invention supports and fixes the valve to be tested through the mutual cooperation of the first valve bracket and the second valve bracket. The fixing method is simple and easy to operate, which avoids the complicated process that the operator needs to fix the valve to be tested with both hands during the air tightness test. At the same time, the inlet and outlet positions of the valve to be tested are positioned, so that the valve to be tested is placed at the center of the test fixed disk and the test movable disk, without the need for manual positioning by the employee, thereby avoiding inaccurate positioning and abnormal test results.

Description

Technical Field

[0001] The invention relates to the technical field of valve air tightness detection, and in particular to a valve detection device. Background Art

[0002] The valve air tightness test is a test method to detect whether there is leakage in the closed state of the valve. By using gas as the test medium, a certain pressure is applied to the valve, and the valve is observed to see if there is leakage in the closed state. The valve air tightness test machine places the valve to be tested between two sealing blocks, squeezes and seals the valve between the two sealing blocks through a hydraulic telescopic rod, and then injects water inside. The internal pressure changes are observed for a period of time to determine the air tightness performance of the valve to be tested.

[0003] When an existing valve air tightness testing machine performs air tightness testing on a valve, it is necessary to place the valve body of the valve on a sealing block before proceeding to the next step. However, for an electric valve, the weight of the motor is greater than the weight of the valve body. When placing the valve on the sealing block, the operator is required to hold the valve with both hands so that the valve can be placed flat. This affects the safety of the operator when operating the hydraulic telescopic rod for sealing, and also wastes a lot of operating time and is cumbersome to operate. Moreover, when the electric valve is manually fixed, it is impossible to accurately position it in the center of the sealing block. Therefore, the present application provides a valve testing device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a valve detection device to solve the problem that when the existing valve air tightness testing machine performs air tightness detection on the valve, the valve body of the valve needs to be placed on the sealing block before proceeding to the next step. However, for the electric valve, the weight of the motor is greater than the weight of the valve body. When placing it on the sealing block, the operator needs to hold the valve with both hands so that the valve can be placed flat. This affects the safety of the operator when operating the hydraulic telescopic rod for sealing, and at the same time wastes a lot of operating time and is cumbersome to operate. In addition, when the electric valve is manually fixed, it is impossible to accurately locate the center position of the sealing block.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A valve detection device comprises an operating platform, one side of the operating platform is fixedly connected to a test platform, one side of the test platform is fixedly connected to a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is fixedly connected to a test moving disk, the test platform is fixedly connected to a test fixed disk above the test moving disk, and the bottom end of the test moving disk is fixedly connected to a connecting frame; the connecting frame comprises a bracket connecting plate rotatably connected to the bottom end of the test moving disk, one end of the bracket connecting plate is respectively fixedly connected to a bracket connecting block and a bracket connecting rod, the bottom end of the bracket connecting rod is fixedly connected to a valve second bracket, one side of the bracket connecting block is fixedly connected to a valve first bracket, and valves to be tested are placed on the valve second bracket and the valve first bracket; and also includes a rotation limiting structure for realizing rotation between the bracket connecting plate and the test moving disk.

[0007] Preferably, the rotation limiting structure includes a rotating gear rotatably connected to the bottom end of the test movable disk, the rotating gear is fixedly connected to the surface of the bracket connecting plate, the bottom end of the test movable disk is rotatably connected to a limiting claw, the limiting claw and the rotating gear are meshingly connected, a guide rod is fixedly connected to one side of the bottom end of the test movable disk close to the limiting claw, one end of the limiting claw is fixedly connected to a release rod, and the release rod passes through the guide rod and extends to the bottom of the test movable disk.

[0008] Preferably, both side surfaces of the bracket connecting plate are fixedly connected with a plurality of uniform reinforcing ribs, and the bottom end of the test movable plate is fixedly connected with a limiting partition plate on one side close to the bracket connecting plate.

[0009] Preferably, the first valve bracket includes an annular plate fixedly connected to one side of the bracket connecting block, the annular plate is an L-shaped structure, one side of the annular plate is fixedly connected with an auxiliary limiting plate, the end of the annular plate close to the auxiliary limiting plate is fixedly connected with four limiting elastic plates, the four limiting elastic plates are distributed at 90° to each other, and the annular plate and the auxiliary limiting plate are an integrally molded structure; the limiting elastic plate includes a valve body second limiting plate fixedly connected to the annular plate, the bottom end of the valve body second limiting plate is fixedly connected to the valve body first limiting plate, and the valve body first limiting plate and the valve body second limiting plate are die-cast as an integral part.

[0010] Preferably, the auxiliary limiting plate is formed by connecting a second annular guide section and a second deformation section, the thickness of the second deformation section gradually changes from thick to thin, the thicker end of the second deformation section is fixed to the surface of one side of the annular plate, and the thinner end of the second deformation section is connected to the second guide section, and the second guide section has an outward-turned arc structure.

[0011] Preferably, the first limiting piece of the valve body is formed by connecting a limiting section and a contact section, and the second limiting piece of the valve body is formed by connecting a first guide section, a first deformation section, an extrusion section and a connecting section, the two ends of the limiting section are respectively connected to the contact section and the connecting section, the thickness of the limiting section gradually changes from thick to thin from the contact section to the connecting section, one end of the connecting section is connected to the first deformation section, one end of the first deformation section is connected to the first guide section, the thickness of the contact section is consistent with the thickness of the thicker end of the limiting section, the thickness of the first deformation section gradually changes from thick to thin from the connecting section to the first guide section, the contact section and the first guide section both present an outward-turned apartment structure, the first guide section and the second guide section are in contact with each other on the opposite side surfaces, an extrusion section is provided at the connecting position of the connecting section and the first deformation section, the two ends of the extrusion section are respectively connected to the surfaces of the connecting section and the first deformation section, and the thickness of the extrusion section gradually changes from thin to thick from the middle to the two ends.

[0012] Preferably, the second valve bracket includes a mounting ring fixedly connected to one end of the bracket connecting rod, and the outer wall of the mounting ring is rotatably connected to four limit pressure rods, the four limit pressure rods are distributed at 90° to each other, and the top ends of the opposite sides of the four limit pressure rods are fixedly connected to valve limit plates; it also includes a support structure for limiting the bottom end of the valve to be tested.

[0013] Preferably, the support structure comprises a plurality of groups of limiting grooves formed on the inner surface of the limiting pressure rod, and elastic blocking sheets are snap-fitted and connected to the limiting grooves.

[0014] Preferably, the limiting groove includes a plurality of evenly distributed first inclined grooves and second inclined grooves opened on the inner surface of the limiting pressure rod, each relative first inclined groove and second inclined groove form a group, the first inclined groove and the second inclined groove are symmetrical inclined grooves, the elastic blocking piece is formed by connecting the first insert strip, the base retaining piece and the second insert strip, the thickness of the base retaining piece gradually changes from thick to thin from both ends to the middle, the first insert strip and the second insert strip have the same structure, the first insert strip is adapted to the first inclined groove, and the second insert strip is adapted to the second inclined groove.

[0015] Preferably, the limiting pressure rod is an L-shaped structure, a mounting hole is opened at 2 / 3 of the limiting pressure rod, a bearing is fixedly connected in the mounting hole, and the inner ring surface wall of the bearing is fixedly connected to the outer surface wall of the mounting ring.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, the valve to be tested is supported and fixed through the cooperation between the first valve bracket and the second valve bracket. The fixing method is simple and easy to operate, which avoids the complicated process that the operating staff needs to fix the valve to be tested with both hands during the air tightness test. At the same time, the inlet and outlet positions of the valve to be tested are positioned, so that the valve to be tested is placed in the center of the test fixed disk and the test moving disk. There is no need for manual positioning by employees, which avoids inaccurate positioning and abnormal test results.

[0018] By arranging the first limit plate and the second limit plate of the valve body to be die-cast as an integral part, the annular plate and the auxiliary limit plate are an integrally formed structure. The integrally formed structure can reduce assembly steps, improve production efficiency, reduce production costs, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the valve detection equipment;

[0021] Figure 2 A schematic diagram of a three-dimensional structure of assembling a valve to be tested, a connecting frame, a first bracket of the valve and a second bracket of the valve from a first perspective;

[0022] Figure 3 A schematic diagram of a second perspective stereoscopic structure of assembling a valve to be tested, a connecting frame, a first bracket of the valve and a second bracket of the valve;

[0023] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 A schematic diagram of a three-dimensional enlarged structure of the assembly of the test moving plate, the connecting frame, the first bracket of the valve and the second bracket of the valve;

[0025] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the first bracket of the valve;

[0026] Figure 7 It is a schematic diagram of a three-dimensional enlarged structure of the first bracket of the valve;

[0027] Figure 8 for Figure 7 A schematic diagram of the three-dimensional enlarged structure at B in the middle;

[0028] Fig. 9 It is a three-dimensional enlarged structural schematic diagram of the second bracket of the valve;

[0029] Fig.10 for Fig. 9 Schematic diagram of the three-dimensional enlarged structure at point C in the middle.

[0030] [Reference Signs]

[0031] 1. Operating platform; 2. Test platform; 3. Hydraulic telescopic rod; 4. Test fixed plate; 5. Test moving plate; 6. Valve to be tested; 7. Connecting frame; 71. Rotating gear; 711. Limiting claw; 712. Guide rod; 713. Release rod; 72. Bracket connecting plate; 721. Reinforcement rib; 73. Bracket connecting block; 74. Bracket connecting rod; 75. Limiting partition; 8. First bracket of valve; 81. Ring plate; 82. Limiting elastic sheet; 821. First limiting sheet of valve body; 8211. Limiting section; 8212. Contact section; 822, second limiting plate of valve body; 8221, first guide section; 8222, first deformation section; 8223, extrusion section; 8224, connecting section; 83, auxiliary limiting plate; 831, second guide section; 832, second deformation section; 9, second bracket of valve; 91, limiting pressure rod; 911, limiting groove; 9111, first inclined groove; 9112, second inclined groove; 912, limiting plate of valve; 92, elastic blocking plate; 921, first insert strip; 922, base stop plate; 923, second insert strip; 93, mounting ring.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0033] The valve detection device provided by the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0034] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0035] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0036] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0037] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0038] like Figures 1 to 5As shown, an embodiment of the present invention provides a valve detection device, including an operating platform 1, a test platform 2 is fixedly connected to one side of the operating platform 1, a hydraulic telescopic rod 3 is fixedly connected to one side of the test platform 2, a test movable disc 5 is fixedly connected to the output end of the hydraulic telescopic rod 3, and a test fixed disc 4 is fixedly connected to the upper side of the test platform 2 near the test movable disc 5, wherein the operating platform 1, the test platform 2, the hydraulic telescopic rod 3, the test fixed disc 4 and the test movable disc 5 are all prior arts, and a connecting frame 7 is fixedly connected to the bottom end of the test movable disc 5, and the connecting frame 7 is used to provide an installation position for a first valve bracket 8 and a second valve bracket 9, and the first valve bracket 8 and the second valve bracket 9 can be rotated on the test movable disc 5 by the connecting frame 7, and the connecting frame 7 is rotated Drive the valve to be tested 6 placed on the first valve bracket 8 and the second valve bracket 9 to move until it moves to the top of the test movable disc 5 for air tightness test. The connecting frame 7 includes a bracket connecting plate 72 rotatably connected to the bottom end of the test movable disc 5. The bracket connecting plate 72 is used to connect the test movable disc 5 with the first valve bracket 8 and the second valve bracket 9 for installation. One end of the bracket connecting plate 72 is fixedly connected with a bracket connecting block 73 and a bracket connecting rod 74 on both sides. The bracket connecting block 73 is used to install the first valve bracket 8. The bracket connecting rod 74 is fixedly connected to the second valve bracket 9. The bottom end of the bracket connecting rod 74 is fixedly connected with the second valve bracket 9. The second valve bracket 9 is used for placing the motor position on the valve to be tested 6. A first valve bracket 8 is fixedly connected to one side of 3, and the horizontal height of the bottom end of the first valve bracket 8 is slightly higher than the horizontal height of the top end of the test movable disk 5. The first valve bracket 8 is used to place the inlet and outlet positions of the valve body of the valve 6 to be tested. The first valve bracket 8 can be used to limit and wrap the edges of the inlet and outlet of the valve body of the valve 6 to be tested, and the inlet and outlet positions of the valve 6 to be tested can be positioned at the same time. When the valve 6 to be tested is moved to the top of the test movable disk 5 through the connecting frame 7, the valve 6 to be tested is just located at the center of the test movable disk 5. The second valve bracket 9 can effectively limit and fix the position of the motor of the valve 6 to be tested, and can be adapted to motors of valves 6 to be tested in multiple sizes. The valve 6 to be tested cooperates with each other so that it is supported and fixed in a simple and easy-to-operate manner, thereby avoiding the complicated process that the operator needs to use both hands to fix the valve 6 to be tested during the air tightness test. At the same time, the inlet and outlet positions of the valve 6 to be tested are positioned so that the valve 6 to be tested is placed at the center of the test fixed disk 4 and the test movable disk 5, without the need for manual positioning by the employee, thereby avoiding the situation where inaccurate positioning leads to abnormal test results. The valve 6 to be tested is placed on the second valve bracket 9 and the first valve bracket 8, and also includes a rotation limiting structure for realizing the rotation between the bracket connecting plate 72 and the test movable disk 5. The rotation of the connecting frame 7, the first valve bracket 8 and the second valve bracket 9 is realized by the rotation limiting structure.When the operator places the valve to be tested 6 on the first valve bracket 8 and the second valve bracket 9, the installed valve to be tested 6 is driven by the rotating limit structure, so that the valve to be tested 6 rotates to the top of the center of the test moving disk 5.

[0039] like Figure 4 and Figure 5 As shown, the rotation limiting structure includes a rotating gear 71 rotatably connected to the bottom end of the test movable disk 5, the test movable disk 5 is provided with a first rotating shaft, and the rotating gear 71 is installed on the rotating shaft, so that the rotating gear 71 is rotatably connected to the bottom end of the test movable disk 5, the rotating gear 71 is fixedly connected to the surface of the bracket connecting plate 72, and the bracket connecting plate 72 is fixedly connected to the surface of the rotating gear 71, so that the rotating gear 71 drives the bracket connecting plate 72 to move synchronously during the rotation process, the bottom end of the test movable disk 5 is rotatably connected to the limiting claw 711, and the limiting claw 711 is meshingly connected with the rotating gear 71, and the bottom end of the test movable disk 5 is fixedly connected with a second rotating shaft near the side of the rotating gear 71, the limiting claw 711 is sleeved on the outer wall of the second rotating shaft, and a torsion spring is provided at the connection position between the limiting claw 711 and the second rotating shaft, and the bottom end of the test movable disk 5 is fixedly connected with a guide rod 712 on one side near the limiting claw 711, and the guide rod 712 is used to limit the release pull rod 713. When the operator pulls the release rod 713, the limiting claw 711 will be disengaged from the rotating gear 71, thereby releasing the limit on the rotating gear 71, thereby releasing the limit on the bracket connecting plate 72, so that the bracket connecting plate 72 can rotate. When the release rod 713 is released, the limiting claw 711 returns to its original position under the elastic action of the torsion spring. The rotating gear 71 is limited, and the two side surfaces of the bracket connecting plate 72 are fixedly connected with a number of uniform reinforcing ribs 721, which can increase the strength of the bracket connecting plate 72. The bottom end of the test movable plate 5 is fixedly connected to a limiting partition 75 close to one side of the bracket connecting plate 72. The limiting partition 75 is used to limit the bracket connecting plate 72. When the bracket connecting plate 72 rotates to connect with the limiting partition 75, the first valve bracket 8 is exactly located at the center of the test movable plate 5.

[0040] like Figure 6 and Figure 7As shown, the first valve bracket 8 includes an annular plate 81 fixedly connected to one side of the bracket connecting block 73, the annular plate 81 is an L-shaped structure, the annular plate 81 is used to provide an installation position for the limiting elastic sheet 82, one side of the annular plate 81 is fixedly connected with an auxiliary limiting sheet 83, the auxiliary limiting sheet 83 is used to assist in limiting the limiting elastic sheet 82, so as to prevent the limiting elastic sheet 82 from being too large under the extrusion of the outer wall of the valve to be tested 6 and losing the extrusion support function, one end of the annular plate 81 close to the auxiliary limiting sheet 83 is fixedly connected with four limiting elastic sheets 82, the limiting elastic sheets 82 are used to squeeze and limit the edge and surface wall of the valve body of the valve to be tested 6, so that it is laid horizontally, and the four limiting elastic sheets 82 are fixedly connected. The limiting elastic pieces 82 are distributed at 90° to each other, and the limiting elastic piece 82 includes a second limiting piece 822 of the valve body fixedly connected to the annular plate 81, and the second limiting piece 822 of the valve body is used to wrap and limit the outer wall of the valve body of the valve 6 to be tested, and the bottom end of the second limiting piece 822 of the valve body is fixedly connected to the first limiting piece 821 of the valve body, and the first limiting piece 821 of the valve body is used to support and limit the edge position of the valve body of the valve 6 to be tested. The first limiting piece 821 of the valve body and the second limiting piece 822 of the valve body are integrally formed by die-casting, and the annular plate 81 and the auxiliary limiting piece 83 are an integrally formed structure. The integrally formed structure can reduce the assembly process and improve production efficiency, while reducing production costs and improving product quality.

[0041] like Figure 8As shown, the auxiliary limiting piece 83 is formed by connecting the annular second guide section 831 and the second deformation section 832. The thickness of the second deformation section 832 gradually changes from thick to thin. The second limiting piece 822 of the valve body will deform when it is squeezed by the surface wall of the valve 6 to be tested. When the second limiting piece 822 of the valve body is deformed, it will deform in the direction of the second deformation section 832. During the deformation process, the second deformation section 832 will be squeezed to cause offset deformation. The second deformation section 832 can be provided to support the second limiting piece 822 of the valve to prevent it from being deformed too much. The thicker end of the second deformation section 832 is fixed to the surface of one side of the annular plate 81, and the thinner end of the second deformation section 832 is connected to the second guiding section 831. The second guiding section 831 is in an outward-turned arc shape. The structure of the second guide section 831 is consistent with that of the first guide section 8221. When the second limiting piece 822 of the valve deviates toward the second deformation section 832, the first guiding section 8221 first contacts with the second guiding section 831. The second guiding section 831 of the arc structure is used to guide the deviation of the first guiding section 8221. The first limiting piece 821 of the valve body is formed by connecting the limiting section 8211 and the contact section 8212. The valve 6 to be tested is placed on the second limiting piece 822 of the valve body, which is formed by connecting the first guiding section 8221, the first deformation section 8222, the extrusion section 8223 and the connecting section 8224. The two ends of the limiting section 8211 are respectively connected to the contact section 8212 and the connecting section 8224. The thickness of the limiting section 8211 increases from the contact section 8212 to the connecting section 82 24 direction gradually changes from thick to thin, one end of the connecting section 8224 is connected to the first deformation section 8222, one end of the first deformation section 8222 is connected to the first guide section 8221, the thickness of the contact section 8212 is consistent with the thickness of the thicker end of the limiting section 8211, the thickness of the first deformation section 8222 gradually changes from thick to thin from the connecting section 8224 to the first guide section 8221, the contact section 8212 and the first guide section 8221 are both outward-turned apartment structures, the first guide section 8221 and the second guide section 831 are in contact with each other, the connecting section 8224 and the first deformation section 8222 are connected at the position where the extrusion section 8223 is connected, the two ends of the extrusion section 8223 are respectively connected to the surfaces of the connecting section 8224 and the first deformation section 8222, and the extrusion section 8223 is connected to the surfaces of the connecting section 8224 and the first deformation section 8222. The thickness of segment 8223 gradually changes from thin to thick from the middle to both ends. When the valve body of the valve to be tested 6 is placed on the first valve bracket 8, the edge of the valve body first contacts the first outward-turned guide segment 8221. When the valve body that continues to move downward squeezes the first guide segment 8221, it drives the first deformation segment 8222 to deflect outward and deform. Then the edge of the valve body contacts the extrusion segment 8223 for extrusion deformation until the edge of the valve body drops to the connection position of the limiting segment 8211 and the connecting segment 8224. The raised limiting segment 8211 limits the edge of the valve body. At the same time, the first deformation segment 8222 and the extrusion segment 8223 squeeze the outer wall of the valve body, thereby limiting and fixing the valve body. When the air tightness test is performed,The test movable disc 5 moves toward the test fixed disc 4 under the operation of the hydraulic telescopic rod 3, so that the two ends of the valve body of the valve to be tested 6 are squeezed and sealed by the test fixed disc 4 and the test movable disc 5. During the squeezing process, the contact section 8212 drives the limit section 8211 to move outward under the squeezing of the test movable disc 5, thereby releasing the limit on the edge position of the valve to be tested 6.

[0042] like Fig. 9 As shown, the second valve bracket 9 includes a mounting ring 93 fixedly connected to one end of the bracket connecting rod 74, and the outer wall of the mounting ring 93 is rotatably connected with four limiting pressure rods 91, the limiting pressure rod 91 is an L-shaped structure, and a mounting hole is opened at 2 / 3 of the limiting pressure rod 91, and a bearing is fixedly connected in the mounting hole. The inner ring surface wall of the bearing is fixedly connected to the outer wall of the mounting ring 93, and the four limiting pressure rods 91 are connected to the mounting ring 93 at 90 degrees to each other. The four limiting pressure rods 91 are distributed at 90 degrees to each other, and the top ends of the opposite sides of the four limiting pressure rods 91 are fixedly connected with valve limiting plates 912, and also include a support structure for limiting the bottom end of the valve 6 to be tested. The supporting structure includes a plurality of groups of limiting grooves 911 provided on the inner surface of the limiting pressure rod 91, and an elastic baffle 92 is snap-connected to the limiting grooves 911. When the motor position of the valve 6 to be tested is placed inside the four limiting pressure rods 91, the bottom end of the motor position of the valve 6 to be tested first contacts the elastic baffle 92. During the continuous downward pressure process, the motor position of the valve 6 to be tested will squeeze the elastic baffle 92, and during the squeezing process, the limiting pressure rod 91 is driven to rotate on the mounting ring 93 until the top end of the limiting pressure rod 91 contacts the surface of the motor position of the valve 6 to be tested, thereby squeezing and limiting the surface of the motor of the valve 6 to be tested through the valve limiting plate 912 on the limiting pressure rod 91.

[0043] like Fig.10As shown, the limiting groove 911 includes a plurality of evenly distributed first inclined grooves 9111 and second inclined grooves 9112 opened on the inner surface of the limiting pressure rod 91, each of the first inclined grooves 9111 and the second inclined grooves 9112 relative to each other form a group, and the first inclined grooves 9111 and the second inclined grooves 9112 are symmetrically inclined grooves in direction. The elastic blocking piece 92 is formed by connecting the first plug strip 921, the base abutment piece 922 and the second plug strip 923. The thickness of the base abutment piece 922 gradually changes from thick to thin from both ends to the middle. The structures of the first plug strip 921 and the second plug strip 923 are consistent. The first plug strip 92 1 is adapted to the first inclined groove 9111, and the second insertion strip 923 is adapted to the second inclined groove 9112. The staff can adjust the position of the elastic baffle 92 according to the length of the motor of the valve 6 to be tested of different models. When adjusting, the operator presses the base baffle 922 with both hands, and the base baffle 922 is deformed under the pressing of the operator, and then the first insertion strip 921 and the second insertion strip 923 can be respectively pulled out from the first inclined groove 9111 and the second inclined groove 9112, and inserted into the first inclined groove 9111 and the second inclined groove 9112 adapted according to the actual length of the valve motor.

[0044] According to the working principle provided by the present invention, when it is necessary to perform an air tightness test on the valve 6 to be tested, the staff can adjust the position of the elastic baffle 92 according to the motor length of the valve 6 to be tested of different models. During the adjustment, the operator presses the base baffle 922 with both hands, and the base baffle 922 is deformed under the pressure of the operator, and then the first insertion strip 921 and the second insertion strip 923 can be respectively pulled out from the first inclined groove 9111 and the second inclined groove 9112, and inserted into the first inclined groove 9111 and the second inclined groove 9112 that are matched according to the actual valve motor length.

[0045] Then, when the motor position of the valve to be tested 6 is inserted into the four limit pressure rods 91, the bottom end of the motor position of the valve to be tested 6 will first contact the elastic baffle 92. During the continuous downward pressure process, the motor position of the valve to be tested 6 will squeeze the elastic baffle 92, and during the squeezing process, the limit pressure rod 91 will be driven to rotate on the mounting ring 93 until the top end of the limit pressure rod 91 contacts the surface of the motor position of the valve to be tested 6, thereby squeezing and limiting the surface of the motor of the valve to be tested 6 through the valve limit plate 912 on the limit pressure rod 91.

[0046] When the second valve bracket 9 is placed, the valve body of the valve to be tested 6 is placed on the first valve bracket 8. The edge of the valve body first contacts the first outward-turned guide section 8221. When the valve body that continues to move downward squeezes the first guide section 8221, it drives the first deformation section 8222 to deflect outward and deform. Then, the edge of the valve body contacts the squeezing section 8223 for squeezing and deformation, until the edge of the valve body drops to the connection position of the limiting section 8211 and the connecting section 8224. The raised limiting section 8211 limits the edge of the valve body. At the same time, the first deformation section 8222 and the extrusion section 8223 will squeeze the outer wall of the valve body, thereby limiting and fixing the valve body. When performing an air tightness test, the test movable disc 5 moves toward the test fixed disc 4 under the operation of the hydraulic telescopic rod 3, thereby squeezing and sealing both ends of the valve body of the valve to be tested 6 through the test fixed disc 4 and the test movable disc 5. During the extrusion process, the contact section 8212 drives the limiting section 8211 to move outwards under the extrusion of the test movable disc 5, thereby releasing the limitation on the edge position of the valve to be tested 6. The above operations can place the valve to be tested 6.

[0047] When the operator pulls the release rod 713, the limiting claw 711 will be disengaged from the rotating gear 71, thereby releasing the limiting of the rotating gear 71, thereby releasing the limiting of the bracket connecting plate 72. When the rotating bracket connecting plate 72 is connected to the limiting partition plate 75, the first valve bracket 8 and the second valve bracket 9 on which the valve 6 to be tested is placed can be moved to the center position above the test movable disk 5. After releasing the release rod 713, the limiting claw 711 returns to its original position under the elastic action of the torsion spring, limiting the rotating gear 71. In order to avoid positional displacement of the bracket connecting plate 72, when performing an air tightness test, the test movable disc 5 moves toward the test fixed disc 4 under the operation of the hydraulic telescopic rod 3, thereby squeezing and sealing both ends of the valve body of the valve to be tested 6 through the test fixed disc 4 and the test movable disc 5. During the squeezing process, the contact section 8212 drives the limiting section 8211 to move outward under the squeezing of the test movable disc 5, thereby releasing the limitation on the edge position of the valve to be tested 6, so that the two sides of the valve body of the valve to be tested 6 are tightly fitted on the surfaces of the test fixed disc 4 and the test movable disc 5.

[0048] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A valve detection device, characterized in that: The operating platform (1) comprises a test platform (2) fixedly connected to one side of the operating platform (1), a hydraulic telescopic rod (3) fixedly connected to one side of the test platform (2), an output end of the hydraulic telescopic rod (3) fixedly connected to a test movable plate (5), a test fixed plate (4) fixedly connected to the upper side of the test platform (2) near the test movable plate (5), and a connecting frame (7) fixedly connected to the bottom end of the test movable plate (5); The connecting frame (7) comprises a bracket connecting plate (72) rotatably connected to the bottom end of the test movable disc (5); one end of the bracket connecting plate (72) is fixedly connected to a bracket connecting block (73) and a bracket connecting rod (74) on both sides thereof; the bottom end of the bracket connecting rod (74) is fixedly connected to a second valve bracket (9); one side of the bracket connecting block (73) is fixedly connected to a first valve bracket (8); and a valve (6) to be tested is placed on the second valve bracket (9) and the first valve bracket (8); The first valve bracket (8) comprises an annular plate (81) fixedly connected to one side of the bracket connecting block (73); the annular plate (81) is an L-shaped structure; one side of the annular plate (81) is fixedly connected to an auxiliary limiting plate (83); one end of the annular plate (81) close to the auxiliary limiting plate (83) is fixedly connected to four limiting elastic plates (82); the four limiting elastic plates (82) are distributed at 90 degrees to each other; the annular plate (81) and the auxiliary limiting plate (83) are an integrally formed structure; It also includes a rotation limiting structure for realizing rotation between the bracket connecting plate (72) and the test movable plate (5); The rotation limiting structure comprises a rotating gear (71) rotatably connected to the bottom end of the test movable disk (5), the rotating gear (71) being fixedly connected to the surface of the bracket connecting plate (72), the bottom end of the test movable disk (5) being rotatably connected to a limiting claw (711), the limiting claw (711) being meshingly connected to the rotating gear (71), a guide rod (712) being fixedly connected to one side of the bottom end of the test movable disk (5) close to the limiting claw (711), a release pull rod (713) being fixedly connected to one end of the limiting claw (711), the release pull rod (713) passing through the guide rod (712) and extending to the bottom of the test movable disk (5).

2. The valve detection device according to claim 1, characterized in that: A plurality of uniform reinforcing ribs (721) are fixedly connected to both side surfaces of the bracket connecting plate (72), and a limiting partition plate (75) is fixedly connected to one side of the bottom end of the test moving plate (5) close to the bracket connecting plate (72).

3. The valve detection device according to claim 1, characterized in that: The limiting elastic piece (82) comprises a valve body second limiting piece (822) fixedly connected to the annular plate (81), the bottom end of the valve body second limiting piece (822) being fixedly connected to the valve body first limiting piece (821), and the valve body first limiting piece (821) and the valve body second limiting piece (822) being integrally formed by die casting.

4. The valve detection device according to claim 3, characterized in that: The auxiliary limiting piece (83) is formed by connecting an annular second guide section (831) and a second deformable section (832); the thickness of the second deformable section (832) gradually changes from thick to thin; the thicker end of the second deformable section (832) is fixed to a surface of one side of the annular plate (81); the thinner end of the second deformable section (832) is connected to the second guide section (831); and the second guide section (831) is in an outwardly turned arc structure.

5. The valve detection device according to claim 4, characterized in that: The first limiting piece (821) of the valve body is formed by connecting a limiting section (8211) and a contact section (8212); the second limiting piece (822) of the valve body is formed by connecting a first guiding section (8221), a first deformation section (8222), an extrusion section (8223) and a connecting section (8224); two ends of the limiting section (8211) are respectively connected to the contact section (8212) and the connecting section (8224); the thickness of the limiting section (8211) gradually changes from thick to thin in a direction from the contact section (8212) to the connecting section (8224); one end of the connecting section (8224) is connected to the first deformation section (8222); one end of the first deformation section (8222) is connected to the first guiding section (8221); the contact section (821 2) has a thickness that is consistent with the thickness of the thicker end of the limiting section (8211); the thickness of the first deformation section (8222) gradually changes from thick to thin in the direction from the connecting section (8224) to the first guide section (8221); the contact section (8212) and the first guide section (8221) both present an outward-turned apartment structure; the first guide section (8221) and the second guide section (831) are in contact with each other on opposite side surfaces; an extrusion section (8223) is provided at a position where the connecting section (8224) and the first deformation section (8222) are connected; two ends of the extrusion section (8223) are respectively connected to the surfaces of the connecting section (8224) and the first deformation section (8222); and the thickness of the extrusion section (8223) gradually changes from thin to thick from the middle to the two ends.

6. The valve detection device according to claim 1, characterized in that: The second valve bracket (9) comprises a mounting ring (93) fixedly connected to one end of the bracket connecting rod (74); the outer wall of the mounting ring (93) is rotatably connected to four limiting pressure rods (91); the four limiting pressure rods (91) are distributed at 90 degrees to each other; the top ends of the opposite sides of the four limiting pressure rods (91) are fixedly connected to valve limiting plates (912); It also includes a support structure for limiting the bottom end of the valve (6) to be tested.

7. The valve detection device according to claim 6, characterized in that: The support structure comprises a plurality of groups of limiting grooves (911) formed on the inner surface of the limiting pressure rod (91), and elastic blocking sheets (92) are snap-fitted and connected to the limiting grooves (911).

8. The valve detection device according to claim 7, characterized in that: The limiting groove (911) comprises a plurality of evenly distributed first inclined grooves (9111) and second inclined grooves (9112) opened on the inner surface of the limiting pressure rod (91), each of the first inclined grooves (9111) and the second inclined grooves (9112) relative to each other forming a group, the first inclined grooves (9111) and the second inclined grooves (9112) being inclined grooves with symmetrical directions, the elastic blocking piece (92) being formed by connecting a first inserting strip (921), a base abutting strip (922) and a second inserting strip (923), the thickness of the base abutting strip (922) gradually changes from thick to thin from both ends to the middle, the first inserting strip (921) and the second inserting strip (923) have the same structure, the first inserting strip (921) is adapted to the first inclined groove (9111), and the second inserting strip (923) is adapted to the second inclined groove (9112).

9. The valve detection device according to claim 6, characterized in that: The limiting pressure rod (91) is an L-shaped structure. A mounting hole is provided at 2 / 3 of the limiting pressure rod (91). A bearing is fixedly connected in the mounting hole. The inner ring surface wall of the bearing is fixedly connected to the outer surface wall of the mounting ring (93).

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