A gas pressure regulator valve body strength and durability testing device

By designing a gas pressure regulator valve body strength and durability test device, the coupling of the limit shaft, arc transmission frame and tapered plug is used to achieve efficient durability testing of the pressure resistance strength of the gas pressure regulator valve body, solving the problem of poor testing convenience of existing equipment, and improving operating efficiency and detection accuracy.

CN119757062AInactive Publication Date: 2025-04-04JINAN BOJIAN TESTING TECH CO LTD
View PDF 9 Cites 0 Cited by

Patent Information

Application Number
CN202510252319.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-04-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing equipment is inconvenient to conduct durability testing on the pressure resistance strength of the gas pressure regulator valve body, resulting in poor testing convenience and affecting operating efficiency.

Method used

A gas pressure regulator valve body strength and durability test device is designed, using the coordination of the limit shaft, arc transmission frame and conical plug. Through the contact between the transmission end plate and the arc transmission frame, the limit shaft slides, realizing the automatic insertion of the tapered plug and the positioning and transportation of the valve tube to be tested.

Benefits of technology

During the operation, the device can automatically complete the positioning, detection and disengagement of the valve tube to be tested, which improves the convenience and accuracy of the test, and at the same time improves the operation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119757062A_ABST
    Figure CN119757062A_ABST
Patent Text Reader

Abstract

The present invention discloses a gas pressure regulator valve body strength durability test device, and the present invention relates to the technical field of testing equipment. The gas pressure regulator valve body strength durability test device, through the cooperation of a limit shaft rod, an arc-shaped transmission frame and a conical plug, can separate the transmission end plate from the arc-shaped transmission frame during operation, so that the limit shaft rod can drive the conical plug to move through the cooperation of a spring body, so that the conical plug can be automatically inserted into the inside of the valve pipe body to be tested, and the positioning operation of the valve pipe body to be tested can be completed. At the same time, the valve pipe body to be tested can be transported to the position to be tested for testing, and can be automatically separated after the test is completed. Compared with the traditional testing method, it is more convenient, and the detection accuracy is ensured while further improving the operation efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of testing equipment, in particular to a gas pressure regulator valve body strength durability testing device. Background Art

[0002] As an important infrastructure, urban gas has not only become the main energy source for the lives of Chinese residents, but is also widely used in various fields such as heating, cooling, power generation, and automobiles. Gas pressure regulators are needed on urban gas transmission pipelines, and the reliability of their pressure regulating function directly affects the safety of residents' gas use. Since the gas pressure regulator needs to withstand different levels of pressure during use, the pressure resistance of the gas pressure regulator valve body is very high; refer to the Chinese patent, the "Gas Pressure Regulator Valve Body Strength Durability Test Device" with the announcement number "CN209446399U", which points out that the existing equipment is not convenient for durability testing of the pressure resistance of the gas pressure regulator valve body, but the equipment still has the problem of poor testing convenience, which affects the operating efficiency. In this regard, we propose a gas pressure regulator valve body strength durability test device to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a gas pressure regulator valve body strength and durability testing device, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gas pressure regulator valve body strength durability test device, including a detection box, both sides of the detection box are rotatably connected with drive belts, the outer side of the drive belt is fixedly installed with a plurality of limit racks, and the inside of the limit racks are slidably connected with limit shaft rods, and the limit shaft rods are used to limit the conveyance of the valve pipe body to be tested; A positioning collar is fixedly mounted on the end of the limit shaft, and a conical plug is fixedly mounted on the end of the positioning collar. The conical plug is used to be inserted into the inside of the valve tube body to be tested, and a spring body is sleeved on the outside of the limit shaft; Arc-shaped transmission frames are fixedly installed on both sides of the interior of the detection box, and arc-shaped end heads are fixedly installed at the ends of the arc-shaped transmission frames. A transmission end plate is fixedly installed on one end of the limit shaft away from the positioning collar, which is used to contact the arc-shaped transmission frame through the transmission end plate when the limit shaft and the limit frame move with the driving belt, so as to drive the limit shaft to slide inside the corresponding limit frame, so that the positioning collar can clamp and separate the valve pipe body to be tested; A detection plate frame is slidably installed inside the detection box, and a concave detection frame is fixedly installed below the detection plate frame, and interconnected connecting pipes are fixedly installed on the top of the positioning ring, so that when the positioning ring drives the valve tube body to be tested to move to the position to be tested, the detection plate frame drives the concave detection frame to move downward, so that the two ends of the concave detection frame are connected with the connecting pipes on both sides, thereby realizing the detection operation of the valve tube body to be tested.

[0005] Preferably, an annular groove is provided inside the positioning ring, the connecting tube is communicated with the annular groove, a plurality of inflation holes which are communicated with the annular groove are provided inside the conical plug, for filling gas into the body of the valve tube to be tested, a pump which is communicated with the concave inspection frame is fixedly installed on the top surface of the inspection plate frame, a pressure relief valve is installed inside the concave inspection frame, a hydraulic cylinder is fixedly installed inside the inspection box, the piston end of the hydraulic cylinder is fixedly connected to the inspection plate frame, for driving the inspection plate frame to slide up and down inside the inspection box.

[0006] Preferably, reinforcement frames are fixedly installed between both ends of the concave detection frame and the bottom of the detection plate frame.

[0007] Preferably, a sealing ring is fixedly mounted on the outer side of the connecting tube, so that when the concave detection frame moves downward to be plugged into the corresponding connecting tube, the sealing ring can contact the end of the concave detection frame.

[0008] Preferably, a sealing airbag is fixedly mounted on the outer side of the conical plug, and mutually communicating through holes are provided on the circumferential outer side of the positioning collar and inside the sealing airbag.

[0009] Preferably, a position sensor and a pressure sensor are respectively fixedly mounted on the ends of the tapered plug.

[0010] Preferably, a plurality of driving rollers are rotatably connected inside the detection box, and the driving belt is rotatably connected to the outsides of two corresponding driving rollers.

[0011] Preferably, a viewing window is provided inside the detection box, and a material discharge assembly is provided inside the detection box for conveying the valve tube body to be tested.

[0012] Preferably, the unloading assembly includes a material unloading rack, which is fixedly installed inside the detection box. The bottom of the material unloading rack is open and a plurality of fixed rods are fixedly installed on the bottom. The ends of the fixed rods are fixedly installed with spherical support parts. One side of the bottom of the material unloading rack is rotatably connected to a side baffle, and the side baffle is used to block the valve tube body to be tested.

[0013] Preferably, the side baffle is rotatably fixedly mounted with a rotating shaft, the rotating shaft is rotatably connected to the material discharging rack, and both ends of the rotating shaft are sleeved with reset springs for driving the side baffle to reset.

[0014] The present invention provides a gas pressure regulator valve body strength durability testing device. Compared with the prior art, it has the following beneficial effects: (1) The gas pressure regulator valve body strength and durability testing device, through the cooperation of the limit shaft rod, the arc-shaped transmission frame and the conical plug, can separate the transmission end plate from the arc-shaped transmission frame during operation, so that the limit shaft rod can drive the conical plug to move through the cooperation of the spring body, so that the conical plug can be automatically inserted into the inside of the valve pipe body to be tested, and the positioning operation of the valve pipe body to be tested can be completed. At the same time, the valve pipe body to be tested can be transported to the position to be tested for testing, and it can be automatically separated after the test is completed. Compared with the traditional testing method, it is more convenient, ensures the accuracy of the test, and further improves the working efficiency.

[0015] (2) The gas pressure regulator valve body strength and durability testing device, through the setting of the unloading component, can load batches of valve tube bodies to be tested into the unloading rack when testing the valve tube bodies to be tested. When the conical plugs on both sides are inserted into the two ends of the lowest valve tube body to be tested and drive it to move, the side baffles can be driven to rotate along the rotating shaft, so that the valve tube bodies to be tested can be pulled out from the unloading rack one by one, further improving the convenience and efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Side view; Figure 3 This is a schematic diagram of the cross-sectional structure of the detection box of the present invention; Figure 4 It is a schematic cross-sectional structure diagram of the unloading rack of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the structure of the driving belt and the arc-shaped transmission frame of the present invention; Figure 7 It is a schematic cross-sectional view of the positioning collar and the tapered plug of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at B in the middle.

[0017] In the figure: 1. detection box; 101. window; 2. material discharging rack; 201. fixing rod; 2011. spherical support; 202. side baffle; 2021. rotating shaft; 2022. reset spring; 3. detection plate rack; 301. hydraulic cylinder; 302. concave detection rack; 303. reinforcement rack; 4. pump; 5. arc-shaped transmission rack; 501. arc-shaped end; 6. driving belt; 601. driving roller; 7. limiting shaft rod; 701. transmission end plate; 8. limiting rack; 9. spring body; 10. positioning collar; 1001. annular groove; 11. conical plug; 1101. inflation hole; 1102. sealing airbag; 1103. through hole; 12. position sensor; 13. pressure sensor; 14. connecting pipe; 1401. sealing ring; 15. valve pipe body to be tested. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 The present invention provides two technical solutions, which specifically include the following embodiments: Embodiment 1: In an embodiment of the present invention, a gas pressure regulator valve body strength durability test device includes a detection box 1, both sides of the detection box 1 are rotatably connected to drive belts 6, a plurality of limit racks 8 are fixedly installed on the outside of the drive belt 6, and the limit racks 8 are slidably connected to limit shaft rods 7, and the limit shaft rods 7 are used to limit and transport the valve pipe body 15 to be tested; In the embodiment of the present invention, specifically, the driving belt 6 is an existing device, and the driving belts 6 on both sides are always kept parallel, and are used to drive multiple limit frames 8 and limit shafts 7 to run inside the detection box 1; In the embodiment of the present invention, further, a positioning collar 10 is fixedly installed at the end of the limiting shaft rod 7, and a conical plug 11 is fixedly installed at the end of the positioning collar 10, and the conical plug 11 is used to be inserted into the inside of the valve tube body 15 to be tested, and the outer side of the limiting shaft rod 7 is sleeved with a spring body 9; In the embodiment of the present invention, further, arc-shaped transmission frames 5 are fixedly installed on both sides of the interior of the detection box 1, and arc-shaped end heads 501 are fixedly installed at the ends of the arc-shaped transmission frames 5, and a transmission end plate 701 is fixedly installed at one end of the limiting shaft 7 away from the positioning collar 10, which is used to contact the arc-shaped transmission frame 5 through the transmission end plate 701 when the limiting shaft 7 and the limiting frame 8 move with the driving belt 6, so as to drive the limiting shaft 7 to slide inside the corresponding limiting frame 8, so that the positioning collar 10 can achieve the clamping and separation operation of the valve pipe body 15 to be tested; Specifically, when the transmission end plate 701 contacts the arc-shaped transmission frame 5 as the limiting shaft rod 7 moves, as the transmission end plate 701 contacts the arc-shaped transmission frame 5 and moves along the arc-shaped transmission frame 5, the limiting shaft rod 7 is forced to slide inside the limiting frame 8 toward the side away from the valve tube body 15 to be tested, thereby stretching the spring body 9; In the embodiment of the present invention, specifically, when the valve tube body 15 to be tested reaches the initial position, the driving belt 6 drives the limiting shaft 7 to run along the arc-shaped transmission frame 5 until the transmission end plate 701 at the end of the limiting shaft 7 is separated from the arc-shaped transmission frame 5. At this time, the limiting shafts 7 on both sides can drive the conical plugs 11 at the ends to be inserted into the two ends of the valve tube body 15 to be tested through the cooperation of the spring body 9, so as to fix the valve tube body 15 to be tested. Specifically, as the limiting shaft rod 7 is separated from the arc-shaped transmission frame 5, the limiting shaft rod 7 can be reset by the spring body 9, that is, the limiting shaft rod 7 slides toward the side close to the valve tube body 15 to be tested, and as the limiting shaft rod 7 slides, the tapered plug 11 can be driven to move at the same time until the tapered plug 11 is inserted into the valve tube body 15 to be tested; In the embodiment of the present invention, specifically, the initial position mentioned above is the position to be clamped of the valve tube body 15 to be tested, which will not be described in detail here; In the embodiment of the present invention, specifically, a detection plate frame 3 is slidably installed inside the detection box 1, and a concave detection frame 302 is fixedly installed below the detection plate frame 3, and a connecting pipe 14 that is connected to each other is fixedly installed on the top of the positioning collar 10, which is used for when the positioning collar 10 drives the valve pipe body 15 to be tested to move to the position to be tested, the detection plate frame 3 drives the concave detection frame 302 to move downward, so that the two ends of the concave detection frame 302 are connected with the connecting pipes 14 on both sides, so as to realize the detection operation of the valve pipe body 15 to be tested; In the embodiment of the present invention, specifically, an annular groove 1001 is provided inside the positioning collar 10, the connecting tube 14 is connected to the annular groove 1001, a plurality of charging holes 1101 connected to the annular groove 1001 are provided inside the conical plug 11, which are used to charge gas into the inside of the valve tube body 15 to be tested, a pump 4 connected to the concave detection frame 302 is fixedly installed on the top surface of the detection plate frame 3, a pressure relief valve is installed inside the concave detection frame 302, a hydraulic cylinder 301 is fixedly installed inside the detection box 1, and the piston end of the hydraulic cylinder 301 is fixedly connected to the detection plate frame 3, which is used to drive the detection plate frame 3 to slide up and down inside the detection box 1; In the embodiment of the present invention, specifically, when the driving belts 6 on both sides continue to run and drive the clamped valve tube body 15 to be tested to move to the bottom of the detection plate frame 3, that is, it reaches the position to be tested, the detection plate frame 3 moves down at this time, driving the concave detection frame 302 to connect with the connecting pipe 14, and the pump 4 runs at this time to fill the gas into the inside of the valve tube body 15 to be tested to realize the detection, and after the detection is completed, the detection plate frame 3 drives the concave detection frame 302 to reset, and after the detection is completed, as the driving belt 6 continues to run, it can drive the limit shaft rod 7 and the limit frame 8 as well as the valve tube body 15 to be tested that has been tested to move, until the transmission end plate 701 at the end of the limit shaft rod 7 contacts the arc end head 501 at the end of the arc transmission frame 5, and at this time, the limit shaft rod 7 can be forced to slide along the side close to the arc transmission frame 5, stretching the spring body 9, so that the tapered plug 11 is pulled out from the inside of the valve tube body 15 to be tested, so that the valve tube body 15 to be tested automatically falls off after the detection is completed; In the embodiment of the present invention, specifically, a reinforcement frame 303 is fixedly installed between both ends of the concave detection frame 302 and the bottom of the detection plate frame 3. By setting the reinforcement frame 303, the plugging stability between the concave detection frame 302 and the connection tube 14 can be further improved; In the embodiment of the present invention, specifically, a sealing ring 1401 is fixedly installed on the outer side of the connecting tube 14, so that when the concave detection frame 302 moves down to be plugged with the corresponding connecting tube 14, the sealing ring 1401 can contact the end of the concave detection frame 302; In the embodiment of the present invention, specifically, the outer diameter of the connecting tube 14 and the inner diameter of the concave detection frame 302 are adapted to each other, and when the connection is completed, as downward pressure is applied to the concave detection frame 302, the connection tube 14 and the concave detection frame 302 can maintain sealing; In the embodiment of the present invention, specifically, when the connection is completed and the test is performed, as the pump 4 is running, the gas can enter the annular groove 1001 through the connecting pipe 14, and then be filled into the interior of the valve pipe body 15 to be tested through the multiple filling holes 1101, until the pressure is released through the pressure relief valve after the test is completed; In the embodiment of the present invention, specifically, during the detection process, the position sensor 12 and the pressure sensor 13 are fixedly installed at the ends of the tapered plug 11, so as to complete the detection of the position of the valve tube body 15 to be tested and the recording of the air pressure value; In the embodiment of the present invention, specifically, the position sensor 12 and the pressure sensor 13 are both existing sensor devices, which will not be described in detail here; In the embodiment of the present invention, further, a sealing airbag 1102 is fixedly installed on the outer side of the conical plug 11, and mutually connected through holes 1103 are opened on the outer side of the circumference of the positioning ring 10 and inside the sealing airbag 1102; In the embodiment of the present invention, specifically, by setting the sealing airbag 1102, when the conical plug 11 is inserted into the interior of the valve tube body 15 to be tested, as the gas passes through the annular groove 1001 and the through hole 1103 and enters the sealing airbag 1102, the sealing airbag 1102 can be pressurized and expanded, and fits with the inner wall of the valve tube body 15 to be tested, thereby ensuring the detection accuracy; In the embodiment of the present invention, specifically, the detection box 1 is internally rotatably connected to a plurality of drive rollers 601, the drive belt 6 is rotatably connected to the outsides of two corresponding drive rollers 601, and the drive rollers 601 are driven by separate motors, which are existing devices and are not shown in the figure.

[0020] Embodiment 2: Based on Embodiment 1, further, a window 101 is provided inside the detection box 1, and the window 101 is used to observe and record the operation process; a material unloading assembly is provided inside the detection box 1, and is used to transport the valve pipe body 15 to be tested; In the embodiment of the present invention, specifically, the unloading assembly includes a material unloading rack 2, which is fixedly installed inside the detection box 1, and the bottom of the material unloading rack 2 is open and fixedly installed with a plurality of fixed rods 201 at the bottom, and the ends of the fixed rods 201 are fixedly installed with spherical support members 2011, and a side baffle 202 is rotatably connected to one side of the bottom of the material unloading rack 2, and the side baffle 202 is used to block the valve pipe body 15 to be tested; In the embodiment of the present invention, specifically, the side baffle 202 is rotatably fixedly installed with a rotating shaft 2021, the rotating shaft 2021 is rotatably connected to the material unloading rack 2, and both ends of the rotating shaft 2021 are sleeved with a return spring 2022 for driving the side baffle 202 to return to its original position; In the embodiment of the present invention, specifically, when the valve tube body 15 to be tested is tested, the valve tube body 15 to be tested can be loaded into the discharge rack 2. At this time, the valve tube body 15 to be tested located at the bottom of the discharge rack 2 can be supported by multiple spherical support members 2011. When the conical plugs 11 on both sides are inserted into the corresponding two ends of the valve tube body 15 to be tested and drive it to move, the side baffle 202 can be driven to rotate along the rotating shaft 2021, so that the valve tube body 15 to be tested is pulled out from the inside of the discharge rack 2, further improving the convenience of operation.

[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0022] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A gas pressure regulator valve body strength and durability testing device, comprising a testing box (1), characterized in that: Both sides of the interior of the detection box (1) are rotatably connected to a driving belt (6), a plurality of limit frames (8) are fixedly installed on the outside of the driving belt (6), and the inside of the limit frames (8) are slidably connected to a limit shaft rod (7), and the limit shaft rod (7) is used to limit the conveyance of the valve pipe body (15) to be tested; A positioning collar (10) is fixedly mounted on the end of the limiting shaft rod (7), and a conical plug (11) is fixedly mounted on the end of the positioning collar (10), the conical plug (11) is used to be inserted into the inside of the valve tube body (15) to be tested, and a spring body (9) is sleeved on the outside of the limiting shaft rod (7); Both sides of the interior of the detection box (1) are fixedly mounted with an arc-shaped transmission frame (5), and an arc-shaped end head (501) is fixedly mounted at the end of the arc-shaped transmission frame (5), and a transmission end plate (701) is fixedly mounted on one end of the limit shaft (7) away from the positioning collar (10), so that when the limit shaft (7) and the limit frame (8) move with the driving belt (6), the limit shaft (7) can contact the arc-shaped transmission frame (5) through the transmission end plate (701), thereby driving the limit shaft (7) to slide inside the corresponding limit frame (8), so that the positioning collar (10) can clamp and separate the valve pipe body (15) to be tested; A detection plate frame (3) is slidably mounted inside the detection box (1), and a concave detection frame (302) is fixedly mounted below the detection plate frame (3); interconnected connecting pipes (14) are fixedly mounted on the top of the positioning collar (10), so that when the positioning collar (10) drives the valve pipe body (15) to be tested to move to the position to be tested, the detection plate frame (3) drives the concave detection frame (302) to move downward, so that the two ends of the concave detection frame (302) are connected to the connecting pipes (14) on both sides, thereby realizing the detection operation of the valve pipe body (15) to be tested.

2. A gas pressure regulator valve body strength and durability testing device according to claim 1, characterized in that: An annular groove (1001) is provided inside the positioning collar (10), the connecting tube (14) is in communication with the annular groove (1001), a plurality of inflation holes (1101) in communication with the annular groove (1001) are provided inside the conical plug (11), and are used to fill gas into the interior of the valve tube body (15) to be tested; a pump (4) in communication with the concave detection frame (302) is fixedly mounted on the top surface of the detection plate frame (3), a pressure relief valve is installed inside the concave detection frame (302), and a hydraulic cylinder (301) is fixedly mounted inside the detection box (1), a piston end of the hydraulic cylinder (301) is fixedly connected to the detection plate frame (3), and is used to drive the detection plate frame (3) to slide up and down inside the detection box (1).

3. A gas pressure regulator valve body strength and durability testing device according to claim 2, characterized in that: Reinforcement frames (303) are fixedly installed between both ends of the concave detection frame (302) and the bottom of the detection plate frame (3).

4. A gas pressure regulator valve body strength and durability testing device according to claim 2, characterized in that: A sealing ring (1401) is fixedly mounted on the outer side of the connecting tube (14), so that when the concave detection frame (302) moves downward to be plugged into the corresponding connecting tube (14), the sealing ring (1401) can contact the end of the concave detection frame (302).

5. A gas pressure regulator valve body strength and durability testing device according to claim 2, characterized in that: A sealing airbag (1102) is fixedly mounted on the outer side of the conical plug (11), and mutually communicating through holes (1103) are provided on the circumferential outer side of the positioning collar (10) and inside the sealing airbag (1102).

6. A gas pressure regulator valve body strength and durability testing device according to claim 2, characterized in that: A position sensor (12) and a pressure sensor (13) are respectively fixedly mounted on the ends of the conical plug (11).

7. A gas pressure regulator valve body strength and durability testing device according to claim 1, characterized in that: The detection box (1) is rotatably connected to a plurality of driving rollers (601) inside, and the driving belt (6) is rotatably connected to the outsides of two corresponding driving rollers (601).

8. A gas pressure regulator valve body strength and durability testing device according to claim 1, characterized in that: A viewing window (101) is provided inside the detection box (1), and a material discharge assembly is provided inside the detection box (1) for conveying the valve tube body (15) to be tested.

9. A gas pressure regulator valve body strength and durability testing device according to claim 8, characterized in that: The unloading assembly comprises a material unloading rack (2), the material unloading rack (2) being fixedly mounted inside the detection box (1), the bottom of the material unloading rack (2) being open and having a plurality of fixed rods (201) fixedly mounted on the bottom, the ends of the fixed rods (201) being fixedly mounted with spherical support members (2011), and a side baffle (202) being rotatably connected to one side of the bottom of the material unloading rack (2), the side baffle (202) being used to block the valve pipe body (15) to be tested.

10. A gas pressure regulator valve body strength and durability testing device according to claim 9, characterized in that: The side baffle plate (202) is rotatably fixedly mounted with a rotating shaft (2021), the rotating shaft (2021) is rotatably connected to the material unloading rack (2), and both ends of the rotating shaft (2021) are sleeved with return springs (2022) for driving the side baffle plate (202) to return.

Citation Information

Patent Citations

  • Voltage regulator test system and test method

    CN115753054A

  • Manual valve durability test equipment and test method thereof

    CN115950628A

  • Railway vehicle overturning experiment comprehensive test system

    CN118730588A

  • Ball valve wear resistance detection device

    CN119375077A

  • Gas pressure regulator valve body strength durability testing device

    CN209446399U