Gas pressure regulator testing device

Abstract

The utility model relates to a testing device for a gas pressure regulator. The gas pressure regulator testing device is small in size, convenient to install, high in universality, easy and convenient to use, high in automation degree, high in safety, quiet and environmentally friendly. The gas pressure regulator testing device comprises a connecting assembly, a mounting assembly, a transmission assembly and a driving assembly, and the connecting assembly comprises a connector, a connecting rod and a locking device; the mounting assembly comprises a mounting supporting plate, a guide rod and a connecting device, the transmission assembly comprises a lifting device, a shifting sleeve, a shifting shaft, a rotating disc and a rotating rod, the lifting device is in sliding connection with the guide rod, the connecting rod is detachably connected with the lifting device through a locking device, the lifting device is provided with a sliding groove, the shifting sleeve is arranged in the sliding groove in a sliding mode, and the shifting shaft is sleeved with the shifting sleeve. The shifting shaft is fixed on the rotating rod; the rotating rod is fixed on the rotating disc; the reducer shaft is in key connection with the turntable.

Description

Technical Field

[0001] The utility model relates to a testing device, in particular to a testing device for a gas pressure regulator. Background Art

[0002] When using gas equipment, the gas pressure must be adjusted to the appropriate range to ensure proper operation. This is where the gas pressure regulator plays a crucial role. It adjusts the gas pressure entering the equipment to the appropriate range, improving its efficiency. It also protects the equipment from damage caused by high-pressure gas. Therefore, a gas pressure regulator is an essential component of gas equipment.

[0003] When using gas equipment, the normal operation of the gas pressure regulator is very important to the operation of the equipment and the safety of the user. Therefore, it is very necessary to test the use of the gas pressure regulator.

[0004] There are usually two types of gas pressure regulator detection devices currently used on the market:

[0005] The first type is a pneumatic pulse test device, which installs the gas pressure regulator diaphragm on a dedicated closed diaphragm chamber and uses a solenoid valve to control the airflow to agitate the diaphragm. After the test number is reached, it is then installed on the pressure regulator for testing. This detection device has the following disadvantages:

[0006] ①It is necessary to test the voltage regulator membrane on a dedicated membrane cavity tooling, which is inconvenient to operate.

[0007] ② After the test, the regulator diaphragm must be restored and installed on the regulator for testing, which is a cumbersome operation.

[0008] ③ During the test, due to the agitation of the airflow, if there is no limit device, the membrane will be overstretched; if there is a limit device, the noise is loud and it is not environmentally friendly.

[0009] ④ The operating life of the solenoid valve on the test device is generally about 10,000 times, which cannot meet the operating requirement of 30,000 times of testing, and the solenoid valve is prone to failure.

[0010] Another type of testing device is a motor-driven cam reciprocating test device. This device uses a motor-driven cam to drive a connecting rod, pushing and pulling the gas pressure regulator diaphragm back and forth. After the test times are reached, the device is installed on the pressure regulator for testing. This testing device has the following disadvantages:

[0011] ①It is necessary to test the voltage regulator membrane on a dedicated membrane cavity tooling, which is inconvenient to operate.

[0012] ② After the test, the regulator diaphragm must be restored and installed on the regulator for testing, which is a cumbersome operation.

[0013] ③ For voltage regulators of different specifications, different cams and clamping fixtures need to be replaced to meet the test requirements. The structure is complex, the cost is high, the disassembly and assembly are cumbersome, and the work efficiency is low. Utility Model Content

[0014] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides a gas pressure regulator testing device with high degree of automation, low noise, strong versatility, simple operation, labor-saving and time-saving, compact size, reliable performance, energy saving and environmental protection, and easy portability.

[0015] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0016] The drive assembly includes a reducer and a motor, the drive assembly is fixed on the mounting plate, the motor shaft of the motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the turntable key, and the reducer output shaft is coaxially arranged with the turntable.

[0017] The utility model provides a gas pressure regulator testing device, wherein the connecting device is a connecting nut, and the inner circumference of the connecting nut is provided with threads.

[0018] The utility model provides a gas pressure regulator testing device, wherein the connecting head is provided with a fixing pin, and the connecting head is fixed on the connecting rod through the fixing pin.

[0019] The utility model discloses a gas pressure regulator testing device, wherein the lifting device is a lifting cross bar, the lifting cross bar is provided with a guide rod hole, and the lifting cross bar is slidably sleeved on the guide rod through the guide rod hole.

[0020] The utility model provides a gas pressure regulator testing device, wherein the lifting cross bar is also provided with a connecting hole, the connecting rod is provided with a thread, the locking device is a lock nut, there are two lock nuts, the connecting rod passes through the lifting device connecting hole and is threadedly connected to the lock nut, so that the lifting device is fixed on the connecting rod.

[0021] The utility model provides a gas pressure regulator testing device, wherein the guide rod and the connecting rod are on the same plane and parallel to each other.

[0022] The utility model provides a gas pressure regulator testing device, wherein the transmission component is further provided with a self-lubricating bearing, and the self-lubricating bearing is arranged between the shifting shaft and the shifting sleeve.

[0023] The utility model provides a gas pressure regulator testing device, wherein the transmission component is further provided with a set screw, the rotating rod is fixed on the rotating disk through the set screw, and the rotating rod is provided with a scale.

[0024] The utility model provides a gas pressure regulator testing device, wherein the installation component further comprises a fastener, a fixing hole is provided on the installation support plate, and the fastener passes through the fixing hole to fix the drive component on the installation support plate.

[0025] The gas pressure regulator testing device disclosed in the utility model has at least the following beneficial effects:

[0026] ① Small size: The reduction motor and transmission components in this utility model are 300mm long * 160mm wide * 150mm high, and the connecting nut and connecting rod are installed in the voltage regulator adjusting cylinder, which streamlines the structure and reduces the occupied space.

[0027] ②Easy installation: The entire device is installed and fixed, and you only need to connect the connecting nut to the voltage regulator.

[0028] ③ Strong versatility: By adjusting the scale of the rotating rod, it can be adapted to the corresponding voltage regulators of various specifications.

[0029] ④Easy to use: According to the voltage regulator of each specification, set the corresponding stroke of the rotating rod, reset and fix the motor, and then you can start testing.

[0030] ⑤ High degree of automation: The voltage regulator is equipped with timing and counting switches. You only need to set the parameters and complete the test with one click.

[0031] ⑥ High safety: The voltage regulator is equipped with a timing and counting switch, as well as an overheating protection relay to prevent the voltage regulator from malfunctioning and causing disorder, making it safe and reliable to use.

[0032] ⑦Quiet and environmentally friendly: The whole machine operates with low vibration and noise, which is green and environmentally friendly.

[0033] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a front view of a gas pressure regulator testing device according to the present invention;

[0035] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0036] Figure 3 This is a left side view of a gas pressure regulator testing device according to the present invention;

[0037] Figure 4 This is a top view of a gas pressure regulator testing device according to the present invention;

[0038] Figure 5 This is a schematic diagram of the three-dimensional structure of a gas pressure regulator testing device according to the present invention from the right side perspective;

[0039] Figure 6 This is a schematic diagram of the three-dimensional structure of a gas pressure regulator testing device from the left side of the present invention;

[0040] Figure 7 This is a structural schematic diagram of a rotating shaft, a rotating rod and a rotating disk of a gas pressure regulator testing device of the present invention;

[0041] Figure 8 This is a schematic diagram of the rotating rod structure of a gas pressure regulator testing device of the present utility model;

[0042] Figure 9 The figure is a motion trajectory diagram of a dial shaft in a gas pressure regulator testing device of the present utility model.

[0043] Reference numerals

[0044] 01-connecting assembly; 11-connecting head; 111-fixing pin; 12-connecting rod; 13-locking device; 131-lock nut; 02-mounting assembly; 21-mounting tray; 211-through hole; 212-fixing hole; 22-fastener; 23-guide rod; 24-connecting device; 241-connecting nut; 03-transmission assembly; 31-lifting device; 311-slide; 312-lifting cross bar; 32-sleeve; 33-self-lubricating bearing; 34-spindle; 35-turntable; 36-turn rod; 361-scale; 362-set screw; 04-drive assembly; 41-reducer; 42-motor. DETAILED DESCRIPTION

[0045] It should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "front", "back", "left", "right", and "middle" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0046] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] The embodiments described above are merely descriptions of preferred implementation methods of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

[0048] like Figure 1 and Figure 3As shown, the utility model is a gas pressure regulator testing device, including a connecting component 01, a mounting component 02, a transmission component 03 and a driving component 04, the connecting component 01 includes a connecting head 11, a connecting rod 12 and a locking device 13, the connecting head 11 is detachably connected to the connecting rod 12; the mounting component 02 includes a mounting bracket 21, a guide rod 23 and a connecting device 24, the mounting bracket 21 is provided with a through hole 211, the connecting device 24 is fixedly arranged on one side of the mounting bracket 21, and the connecting device 24 corresponds to and is connected to the through hole 211, two guide rods 23 are provided, and the two guide rods 23 are fixedly arranged on the other side of the mounting bracket 21, and the guide rods 23 are respectively located at both ends of the central axis of the through hole 211 and are connected to the mounting bracket 21 is arranged vertically; the transmission component 03 includes a lifting device 31, a shifting sleeve 32, a shifting shaft 34, a turntable 35 and a rotating rod 36. The lifting device 31 is slidingly connected to the guide rod 23, and the connecting rod 12 is detachably connected to the lifting device 31 through a locking device 13. The lifting device 31 is provided with a slide groove 311, and the shifting sleeve 32 is slidingly set in the slide groove 311. The shifting sleeve 32 is sleeved on the shifting shaft 34, the shifting shaft 34 is fixed on the rotating rod 36, and the rotating rod 36 is fixed on the turntable 35; the driving component 04 includes a reducer 41 and a motor 42. The driving component 04 is fixed on the mounting bracket 21. The motor shaft of the motor 42 is connected to the input shaft of the reducer 41, and the output shaft of the reducer 41 is key-connected to the turntable 35. Among them, the turntable 35 is provided with a groove, the output shaft of the reducer 41 is inserted into the groove of the turntable 35, the output shaft of the reducer 41 and the turntable 35 are key-connected, the output shaft of the reducer 41 and the turntable 35 are coaxially arranged, and the dial shaft 34 on the rotating rod 36 is not coaxially arranged with the turntable 35, ensuring that the dial shaft 34 performs circular motion around the axis of the turntable 35. When the motor 42 rotates, the output shaft of the reducer 41 transmits the torque to the turntable 35, the turntable 35 transmits the torque to the rotating rod 36, and the rotating rod 36 transmits the torque to the dial shaft 34. The dial shaft 34 drives the dial sleeve 32 to slide in the slide groove 311 of the lifting device 31, thereby pushing the lifting cross bar 312 to move up and down to realize power transmission.

[0049] The connector 11 is provided with a fixing pin 111, and the connector 11 is fixed to the connecting rod 12 by the fixing pin 111. A pin hole is provided on the connector 11, and a pin hole is also provided at the lower end of the connecting rod 12. The fixing pin 111 passes through the pin hole of the connector 11 and the pin hole of the connecting rod 12 to connect them. The connector 11 is also provided with a thread for connecting with the diaphragm valve stem of the pressure regulator. There are many types of pressure regulators on the market, and the diaphragm valve stems of various pressure regulators are of different sizes. The detachable setting can achieve the purpose of testing the pressure regulators of corresponding specifications by replacing the connectors 11 of various specifications. Moreover, the device only requires one thread to connect and fix with the diaphragm valve stem of the pressure regulator, which is simple and quick.

[0050] The lifting device 31 is a lifting crossbar 312. The lifting crossbar 312 is provided with a guide rod 23 hole. The lifting crossbar 312 is slidably sleeved on the guide rod 23 through the guide rod 23 hole. A through hole 211 is provided on the left end of the mounting bracket 21. The radial size of the connecting nut 241 is the same as that of the through hole 211. The connecting nut 241 is welded under the through hole 211 of the mounting bracket 21 and docked with the through hole 211. The inner side of the connecting nut 241 is provided with a thread that matches the thread of the voltage regulator adjusting cylinder. The voltage regulator is firmly fixed to the mounting bracket 21 through the threaded connection; the guide rod 23 is vertically welded on the through hole 211 of the mounting bracket 21. The two guide rods 23 are respectively arranged at the radial ends of the through hole 211. The lifting crossbar 312 is sleeved on the two guide rods 23 through the two guide rod 23 holes to achieve a sliding connection, and the lifting device 31 is a lifting crossbar 312. The lowering cross bar 312 is also provided with a connecting hole. The upper end of the connecting rod 12 passes through the through hole 211 of the mounting bracket 21 and the connecting hole of the lifting cross bar 312, and is fixed to the lifting cross bar 312 by the locking device 13. The two guide rods 23 and the connecting rod 12 are arranged on the same plane, and the two guide rods and the connecting rod 12 are parallel to each other, so that the connecting rod 12 and the lifting cross bar 312 can move up and down synchronously on the guide rod 23, ensuring that the connecting rod 12 and the lifting cross bar 312 run smoothly on the mounting bracket 21. The durability of the diaphragm assembly of the voltage regulator can be tested without disassembling the voltage regulator to be tested, and noise pollution can also be reduced.

[0051] The connecting rod 12 is provided with a thread, and the locking device 13 is a lock nut 131. There are two lock nuts 131. The connecting rod 12 passes through the connecting hole of the lifting device 31 and is threadedly connected to the lock nut 131 to fix the lifting device 31 on the connecting rod 12. First, screw a lock nut 131 on the connecting rod 12, and then screw another lock nut 131 onto the connecting rod 12 after the connecting rod 12 passes through the connecting hole of the lifting cross bar 312. The lifting cross bar 312 is fixed to the connecting rod 12 by the two lock nuts 131. In addition, the thread of the connecting rod 12 is long enough to adjust the fixed position of the lifting cross bar 312 and the connecting rod 12 by the lock nut 131, so as to achieve the purpose of testing pressure regulators of different specifications. Such a design makes the gas pressure regulator testing device not only compact but also easy to carry, and adaptable to the testing of pressure regulators in various environments.

[0052] like Figure 1 、 Figure 2 and Figure 5As shown, the transmission assembly 03 is further provided with a self-lubricating bearing 33, which is disposed between the shifting shaft 34 and the shifting sleeve 32. To enhance the flexibility of the shifting sleeve 32, the self-lubricating bearing 33 is disposed between the shifting sleeve 32 and the shifting shaft 34. When the shifting sleeve 32 slides within the sliding groove 311 of the lifting crossbar 312, the self-lubricating bearing 33 not only reduces the friction between the shifting sleeve 32 and the shifting shaft 34, but also increases lubrication, thereby preventing excessive wear between the shifting sleeve 32 and the shifting shaft 34, as well as between the shifting sleeve 32 and the sliding groove 311 of the lifting crossbar 312, and preventing malfunctions such as unstable operation or jamming of the gas pressure regulator testing device caused by excessive wear.

[0053] like Figure 1 and Figure 3 As shown, the dial shaft 34 is fixedly mounted on the rotating rod 36, and a groove is provided on the connecting surface of the turntable 35 and the rotating rod 36. Set screw 362 holes are provided on both sides of the turntable 35. The turntable 36 is fixed in the groove of the turntable 35 by the set screw 362, and a scale 361 is provided on the turntable 36. The position of the turntable 36 on the turntable 35 can be adjusted by the set screw 362. According to the scale on the turntable 36, the distance between the dial shaft 34 and the center of the turntable 35 is set to set the voltage regulator test stroke, so as to realize the test of various voltage regulators. The turntable 35 and the output shaft of the reducer 41 rotate with the motor 42 through key cooperation, and the turntable 36 and the dial shaft 34 rotate synchronously with the turntable 35 to realize power transmission.

[0054] like Figure 4 、 Figure 5 and Figure 6 As shown, the mounting assembly 02 further includes fasteners 22. The mounting plate 21 is provided with fixing holes 212. The fasteners 22 pass through the fixing holes 212 to fix the drive assembly 04 to the mounting plate 21. The mounting plate 21 is provided with four fixing holes 212. The fasteners 22 pass through the fixing holes 212 to fix the motor 42 and the reducer 41 to the mounting plate 21, so that the drive assembly 04 and the mounting assembly 02 are firmly fixed together to prevent the gas pressure regulator test device from loosening during operation. The reducer 41 is installed in front of the motor 42 to reduce the speed of the motor 42 to prevent the motor 42 from rotating too fast and overloading the gas pressure regulator test device. The reducer 41 transmits the reduced power to the turntable 35. The fasteners 22 can be bolts or other connectors with the same effect.

[0055] The gas pressure regulator test device of the present invention is also provided with a timer, a photoelectric counting switch and an overheating protection relay. According to the "7.9 Durability" test requirement in GB 27790-2000 "Town Gas Pressure Regulator", the pressure regulator needs to be tested for 30,000 times of opening and closing actions with a frequency greater than 5 times / min. The running time is calculated based on the 30,000 tests, and the running time is counted by the photoelectric counting switch. The running time of the motor 42 is set by the timer, and the photoelectric counting switch is used to count. When the number of operating strokes reaches the specified number, the power supply is automatically cut off, which not only realizes automation but also prevents the motor 42 from overloading due to failure of the photoelectric counting switch. The overheating protection relay can prevent the gas pressure regulator test device from running for too long or other reasons, causing overheating and damage to the equipment. In addition, the entire device is 300mm long, 160mm wide and 150mm high, which is easy to carry, overcoming the problems of cumbersome pressure regulator testing and fixed-point testing.

[0056] "7.9 Durability" in GB 27790-2000 "Town Gas Pressure Regulator" is as follows:

[0057] At room temperature, the voltage regulator is to be opened and closed 30,000 times with a stroke greater than 50% of the full stroke (excluding the closed and fully open positions) and a frequency greater than 5 times / min. The following tests are to be carried out in sequence to check whether it complies with the requirements of 6.8:

[0058] a) Perform external seal inspection according to the method specified in 7.5.

[0059] b) Conduct static characteristic tests at two points within the regulator's inlet pressure range δp1 and two points within the regulator's outlet pressure range δp2, respectively, according to the method in 7.6.1. The values ​​of the initial outlet pressure p2c and inlet pressure p1 should meet the following requirements:

[0060] The initial outlet pressures p2c are p2min and p2max respectively.

[0061] The values ​​of inlet pressure p1 are: p1min and p1max.

[0062] When the inlet pressure p1min determined according to the above provisions is less than p2c+Δp of the family, p1min should be selected according to p2c+Δp.

[0063] Δp is the minimum inlet and outlet pressure difference for the voltage regulator to ensure the voltage regulation accuracy level, declared by the manufacturer.

[0064] like Figure 1 、 Figure 5 and Figure 6 As shown, the test steps of the gas pressure regulator test device of the utility model are as follows:

[0065] Step 1: Install the connector 11 corresponding to the voltage regulator to be tested, loosen the lock nut 131 that secures the connecting rod 12 to the lifting crossbar 312, leaving enough space for up and down movement, and connect the voltage regulator's adjusting cylinder to the connecting nut 241 through threads.

[0066] Step 2: Set the fatigue test stroke according to the model of the voltage regulator to be tested. The specific setting steps are as follows:

[0067] ① Remove the fasteners 22 on the mounting plate 21 and remove the motor 42 and reducer 41 to the right;

[0068] ② Loosen the set screws 362 on both sides of the rotating rod 36;

[0069] ③ According to the scale on the rotating rod 36, adjust the position of the rotating rod 36 on the turntable 35 to set the test stroke, which is generally 2-3mm shorter than the required stroke, and tighten the set screw 362;

[0070] ④ Adjust the position of the rotating rod 36 so that the dial shaft 34 is at the bottom;

[0071] ⑤ Reset the motor 42 and the reducer 41 and tighten the fasteners 22 on the mounting bracket 21 .

[0072] Step 3: Position the lower limit of the stroke. The double lower position of the dial shaft 34 and the pressure regulator diaphragm disc makes the stroke minimum, thereby improving work efficiency. The steps are as follows:

[0073] ① Check whether the diaphragm of the pressure regulator is in the lowest position. Generally, when the pressure regulator is not working, the diaphragm is in the lowest position;

[0074] ② Then connect and fix the connector 11 to the diaphragm valve stem of the pressure regulator;

[0075] ③ Adjust the lock nut 131 on the connecting rod 12 so that the connecting rod 12, the connector 11, and the diaphragm valve stem assembly of the pressure regulator move up 1-1.5 mm, and then firmly fix the connecting rod 12 and the lifting crossbar 312 with the two lock nuts 131;

[0076] Step 4: Set the corresponding duration on the timer based on the running time calculated from the 30,000 tests;

[0077] Step 5: Set the number of times the photoelectric counting switch counts, and the maximum operating time calculated based on the number of times the photoelectric counting switch needs to operate and taking into account the margin, and set the operating time to prevent the counting switch from failing and the motor 42 from stopping in time to avoid accidents;

[0078] Step 6: Turn on the power and timer and start testing:

[0079] like Figure 5 、 Figure 8 and Figure 9 As shown, after the power is turned on and the timer starts testing, the motor 42 starts to rotate, the timer starts timing, and the photoelectric counting switch starts counting. After the motor 42 is decelerated by the reducer 41, the torque is transmitted to the turntable 35 through the key cooperation. The turntable 35 transmits the torque to the rotating rod 36 and rotates synchronously, and then the dial shaft 34 rotates synchronously with the rotating rod 36. The dial shaft 34 starts to make a circular motion from the lowest position a. Since the dial sleeve 32 is sleeved on the dial shaft 34 and the dial sleeve 32 is in the slide groove 311 of the lifting cross bar 312, when the dial shaft 34 moves, the dial sleeve 32 must move synchronously with the dial shaft 34, and then the dial sleeve 32 transmits the torque of the motor 42 to the lifting cross bar 312. Under the action of the self-lubricating bearing 33, the dial sleeve 32 and the lifting cross bar 312 are The movement between 12 and the dial shaft 34 is more flexible. Since the lifting crossbar 312 is firmly fixed on the connecting rod 12 through the lock nut 131, and the two ends are respectively mounted on the two guide rods 23 through the holes of the guide rods 23, the lifting crossbar 312 can only move in the up and down directions under the push of the dial sleeve 32. At the same time, the dial sleeve 32 moves left and right in the sliding groove 311 of the lifting crossbar 312 under the push of the dial shaft 34. Then, when the lifting crossbar 312 moves up and down, it drives the connecting rod 12 and the connector 11 to move up and down synchronously. The diaphragm valve stem of the pressure regulator installed on the connector 11 also moves up and down synchronously with the connecting rod 12. The maximum distance of up and down movement, that is, the maximum stroke set by the rotating rod 36, is also the stroke of the pressure regulator of the tested type. For example, Figure 9 As shown, taking the clockwise rotation of the dial shaft around the axis of the turntable as an example, when the dial shaft 34 moves from the lowest position a to b, the lifting cross bar 312 moves upward, and the dial sleeve 32 moves to the left in the sliding groove 311 of the lifting cross bar 312; when the dial shaft 34 moves from b to c, the lifting cross bar 312 continues to move upward, and the dial sleeve 32 moves to the right in the sliding groove 311 of the lifting cross bar 312; when the dial shaft 34 moves from c to d, the lifting cross bar 312 starts to move downward, and the dial sleeve 32 continues to move to the right in the sliding groove 311 of the lifting cross bar 312; when the dial shaft 34 moves from d to a, the lifting cross bar 312 continues to move downward, and the dial sleeve 32 moves to the left in the sliding groove 311 of the lifting cross bar 312. This reciprocating cycle is used to test the voltage regulator.

[0080] When the photoelectric counter switch count reaches 30,000, the gas pressure regulator test device automatically shuts down and stops, completing the test. If the photoelectric counter switch fails, the gas pressure regulator test device will also automatically shut down and stop when the maximum operating time of motor 42 set by the timer expires, preventing excessive stretching of the tested pressure regulator membrane and any safety accidents. If the test device runs for too long or the device temperature rises due to other reasons, the overheating protection relay will activate, quickly shutting off the power to prevent safety accidents.

[0081] If multiple pressure regulators need to be tested, according to the above test steps, it is only necessary to replace the connector 11 that matches the pressure regulator to be tested, set the corresponding test stroke on the rotating rod 36, set the number of photoelectric counting switches and the maximum operating time of the timer, install the pressure regulator to be tested on the gas pressure regulator test device according to the steps, and start the test with one click, which greatly improves work efficiency.

[0082] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present disclosure.

Claims

1. A gas pressure regulator testing device, characterized in that: It includes a connecting assembly, a mounting assembly, a transmission assembly and a driving assembly. The connecting assembly includes a connecting head, a connecting rod and a locking device. The connecting head is detachably connected to the connecting rod. The mounting assembly includes a mounting bracket, a guide rod and a connecting device, the mounting bracket is provided with a through hole, the connecting device is fixedly arranged on one side of the mounting bracket, the connecting device corresponds to and is connected with the through hole, two guide rods are provided, and the two guide rods are fixedly arranged on the other side of the mounting bracket, the guide rods are respectively located at both ends of the central axis of the through hole and are arranged perpendicular to the mounting bracket; The transmission assembly includes a lifting device, a shifting sleeve, a shifting shaft, a turntable and a rotating rod. The lifting device is slidably connected to the guide rod, and the connecting rod is detachably connected to the lifting device via a locking device. The lifting device is provided with a slide groove, the shifting sleeve is slidably arranged in the slide groove, the shifting sleeve is sleeved on the shifting shaft, the shifting shaft is fixed on the rotating rod, the rotating rod is fixed on the turntable, and the shifting shaft and the turntable are not coaxially arranged. The drive assembly includes a reducer and a motor, the drive assembly is fixed on the mounting plate, the motor shaft of the motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the turntable key, and the reducer output shaft is coaxially arranged with the turntable.

2. A gas pressure regulator testing device according to claim 1, characterized in that: The connecting device is a connecting nut, and a thread is provided on the inner circumference of the connecting nut.

3. A gas pressure regulator testing device according to claim 1, characterized in that: The connecting head is provided with a fixing pin, and the connecting head is fixed on the connecting rod through the fixing pin.

4. A gas pressure regulator testing device according to claim 2, characterized in that: The lifting device is a lifting cross bar, the lifting cross bar is provided with a guide rod hole, and the lifting cross bar is slidably sleeved on the guide rod through the guide rod hole.

5. A gas pressure regulator testing device according to claim 3, characterized in that: The lifting cross bar is also provided with a connecting hole, the connecting rod is provided with a thread, the locking device is a lock nut, there are two lock nuts, the connecting rod passes through the lifting device connecting hole and is threadedly connected to the lock nut to fix the lifting device on the connecting rod.

6. A gas pressure regulator testing device according to claim 4, characterized in that: The guide rod and the connecting rod are on the same plane and parallel to each other.

7. A gas pressure regulator testing device according to claim 5, characterized in that: The transmission assembly is further provided with a self-lubricating bearing, and the self-lubricating bearing is arranged between the shifting shaft and the shifting sleeve.

8. A gas pressure regulator testing device according to claim 6, characterized in that: The transmission assembly is further provided with a set screw, the rotating rod is fixed to the turntable via the set screw, and the rotating rod is provided with a scale.

9. A gas pressure regulator testing device according to claim 7, characterized in that: The mounting assembly further includes a fastener, and the mounting support plate is further provided with a fixing hole, through which the fastener passes to fix the drive assembly to the mounting support plate.

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