Gas steel cylinder pressure detection equipment

Abstract

The utility model provides a gas steel cylinder pressure detection device which comprises a lifting inspection device, two conveying lines including a conveying belt a and a conveying belt b are arranged on the right side of the lifting inspection device, two image acquisition devices are arranged on the left side of the lifting inspection device, the lifting inspection device comprises a conveying frame, a plurality of moving blocks are arranged on the conveying frame in a moving mode, and the moving blocks are arranged on the conveying frame. An equipment box a is mounted on the side, away from the motor a, of the moving block, and a lead screw a is arranged in the middle of the equipment box a; according to the utility model, through the arrangement of the hoisting inspection equipment and the matched conveying line and image acquisition equipment, the automation and high efficiency of gas cylinder pressure detection are realized, the time and energy consumption of manual operation are reduced, the detection efficiency is improved, and meanwhile, through the structures of the screw rod a, the screw rod b, the rotating block matched with the screw rod a and the screw rod b, the motor and the like, the detection efficiency is improved. According to the gas steel cylinder detection device, precise control over steel cylinder operation is achieved, the detection effect on various steel cylinders is ensured, the detection accuracy and applicability are improved, and the use safety of gas steel cylinders is guaranteed.

Description

A gas cylinder pressure testing device Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a gas cylinder pressure testing device. Background Technology

[0002] Gas cylinder pressure testing equipment is a crucial tool for ensuring the safe use of gas cylinders, playing a vital role in numerous fields such as industrial production, medical care, and scientific research. During long-term use, gas cylinders may develop deformation, cracks, and other safety hazards due to internal pressure changes. Therefore, regular pressure testing is necessary to ensure their safety and reliability.

[0003] However, traditional equipment has a low degree of automation and mostly relies on manual operation to complete steps such as handling gas cylinders and connecting detection devices. This not only increases the labor intensity of operators, but also easily leads to detection errors due to human factors, reducing detection efficiency.

[0004] Therefore, this utility model proposes a gas cylinder pressure testing device. By setting up a lifting and inspection device, along with a supporting conveyor line and image acquisition equipment, it achieves automation and high efficiency in gas cylinder pressure testing, reducing the time and effort spent on manual operation and improving testing efficiency. Simultaneously, through the use of lead screws A and B, along with their cooperating rotating block and motor, precise control of the cylinder operation is achieved, ensuring the testing effect on various types of cylinders, improving the accuracy and applicability of the testing, and guaranteeing the safe use of gas cylinders. Summary of the Invention

[0005] Technical problems to be solved: Traditional equipment has a low degree of automation and mostly relies on manual operation to complete steps such as handling gas cylinders and connecting detection devices. This not only increases the labor intensity of operators, but also easily leads to detection errors due to human factors, reducing detection efficiency.

[0006] To achieve the above objectives, this utility model proposes a gas cylinder pressure testing device, including a lifting inspection device. Two conveyor lines, conveyor belt a and conveyor belt b, are arranged on the right side of the lifting inspection device, and two image acquisition devices are arranged on the left side of the lifting inspection device.

[0007] The lifting and inspection equipment includes a conveyor frame with multiple movable blocks on it. A motor a is installed on the rear side of each movable block. An equipment box a is installed on the side of each movable block away from the motor a. A lead screw a is provided in the middle of the equipment box a. The lead screw a has a threaded groove and a strip groove respectively. Two upper and lower rotating blocks a are rotatably connected inside the equipment box a. Two motors b are installed inside the equipment box a. The output ends of the two motors b are connected to the upper and lower rotating blocks a respectively through two pulley sets a.

[0008] An air pump is installed inside the movable block. A telescopic tube is installed between the port of the air pump and the rear end of the lead screw b. A detachable air nozzle is installed at the front end of the lead screw b. The air nozzle has multiple models.

[0009] The gas cylinder has five sequential moving pipeline paths on the conveyor frame, namely ABCDE. Path A is the process of negative pressure after the gas cylinder is lifted, Path B is the path of detecting the changes in the cylinder body under negative pressure, Path C is the path of pressurization, Path D is the path of detecting the changes in the cylinder body under pressurization, and Path E is the path of balancing the internal and external pressure difference after the detection is completed.

[0010] In one example, a device box b is installed at the bottom of the movable block, a lead screw b is provided in the middle of the device box b, the lead screw b has a threaded groove and a strip groove on its outside, two rotating blocks b are installed inside the device box b and are arranged opposite each other, the two rotating blocks b are rotatably connected to the outside of the lead screw b, and two motors c are installed inside the device box b, the output ends of the two motors c are respectively connected to the two rotating blocks b through a pulley set b.

[0011] In one example, a conveyor wheel and an auxiliary wheel are rotatably connected to the inner side of the moving block, a motor a is installed on one side of the moving block, the output end of the motor a is connected to the conveyor wheel, and an electromagnet is fixedly connected to the bottom end of the lead screw a.

[0012] In one example, conveyor belt a is the input and conveyor belt b is the output.

[0013] In one example, the upper rotating block a has a retaining strip inside, which engages with the strip groove on the outside of the lead screw a. The lower rotating block a engages with the thread groove on the outside of the lead screw a. The lower rotating block a has a bearing ball inside, and the thread groove has a bearing groove inside, which engages with the bearing ball.

[0014] In one example, the front rotating block b also has a rotating block a inside. The outer side of the lead screw b has a strip groove. The rotating block a inside the front rotating block b engages with the strip groove on the outer side of the lead screw b. The outer side of the lead screw b has a threaded groove. The rear rotating block b engages with the threaded groove on the outer side of the lead screw b. The rear rotating block b has a bearing ball inside. The threaded groove on the outer side of the lead screw b has a bearing groove inside. The bearing ball inside the rear rotating block b engages with the bearing groove on the outer side of the lead screw b.

[0015] In one example, the gas nozzle has a threaded interface, which is connected to the cylinder valve by rotating the lead screw b.

[0016] The gas cylinder pressure testing device proposed in this utility model has the following beneficial effects:

[0017] 1. This utility model achieves automation and high efficiency in gas cylinder pressure testing by setting up a lifting inspection device and supporting conveyor lines and image acquisition equipment. The moving block in the lifting inspection device can move flexibly on the conveyor frame, and with the help of electromagnets, it can accurately grab and put down the cylinders. Conveyor belts a and b respectively complete the input and output of the cylinders, making the inspection process continuous. At the same time, the image acquisition equipment acquires images of the cylinder body in real time, which can quickly analyze changes in the cylinder body, greatly improving the inspection efficiency and reducing the time and effort consumed by manual operation.

[0018] 2. In this utility model, precise control of the operation of the gas cylinder is achieved through the structure of lead screw a, lead screw b, and the rotating block and motor that cooperate with them. The up and down movement and rotation of lead screw a can drive the electromagnet to accurately attract and lift the gas cylinder; the forward and backward extension and rotation of lead screw b can enable the gas nozzle to accurately connect to the valve port of the gas cylinder. Different models of gas nozzles can also be adapted to different gas cylinder valve ports, ensuring the detection effect of various gas cylinders, improving the accuracy and applicability of detection, and ensuring the safety of gas cylinder use. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 is a schematic diagram of the conveyor frame of this utility model;

[0021] Figure 3 is a schematic diagram of motor a of this utility model;

[0022] Figure 4 is a schematic diagram of the lead screw a of this utility model;

[0023] Figure 5 is a schematic diagram of the rotating block a of this utility model;

[0024] Figure 6 is a schematic diagram of the lead screw b of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Conveyor belt a; 2. Lifting and inspection equipment; 201. Conveyor frame; 202. Moving block; 203. Motor a; 204. Conveyor wheel; 205. Auxiliary wheel; 206. Equipment box a; 207. Lead screw a; 208. Threaded groove; 2081. Bearing groove; 209. Strip groove; 210. Motor b; 211. Rotating block a; 2111. Clamping bar; 2112. Bearing ball; 212. Pulley assembly a; 213. Electromagnet; 214. Air pump; 215. Equipment box b; 216. Lead screw b; 217. Telescopic tube; 218. Motor c; 219. Rotating block b; 220. Pulley assembly b; 221. Air nozzle; 3. Image acquisition equipment; 4. Conveyor belt b. Detailed Implementation

[0027] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0028] As shown in Figures 1 to 6, an embodiment of this utility model proposes a gas cylinder pressure detection device, which includes a lifting inspection device 2. Two conveyor lines, conveyor belt a1 and conveyor belt b4, are arranged on the right side of the lifting inspection device 2. Conveyor belt a1 is the input and conveyor belt b4 is the output. Two image acquisition devices 3 are arranged on the left side of the lifting inspection device 2. The two image acquisition devices 3 are used to acquire images of the cylinder body and then analyze the changes of the cylinder body under internal pressure and negative pressure.

[0029] Specifically, the inspection equipment 2 includes a conveyor frame 201, which is I-shaped. Multiple moving blocks 202 move on the conveyor frame 201. Conveying wheels 204 and auxiliary wheels 205 are rotatably connected to the inner side of the moving blocks 202. The conveying wheels 204 and auxiliary wheels 205 rotate in the grooves on both sides of the I-shaped conveyor frame 201. A motor a203 is installed on the rear side of the moving blocks 202. The output end of the motor a203 is connected to the conveying wheels 204. The motor a203 provides power to drive the conveying wheels 204 to rotate, and then move on the conveyor frame 201.

[0030] Specifically, an equipment box a206 is installed on the side of the movable block 202 away from the motor a203. A lead screw a207 is provided in the middle of the equipment box a206. The lead screw a207 passes through the equipment box a206. The lead screw a207 is provided with two types of grooves: a threaded groove 208 and a strip groove 209. Inside the equipment box a206, two rotating blocks a211 are rotatably connected by bearings.

[0031] The upper rotating block a211 is rotatably connected to the outside of the lead screw a207. The upper rotating block a211 has a retaining strip 2111 inside, which meshes with the strip groove 209. When the lower rotating block a211 rotates, it meshes with the strip groove 209 through the retaining strip 2111, and then drives the retaining strip 2111 to rotate through the rotating block a211, thereby driving the lead screw a207 to rotate.

[0032] The lower rotating block a211 is rotatably connected to the outside of the lead screw a207. The lower rotating block a211 meshes with the threaded groove 208. The lower rotating block a211 is provided with a bearing ball 2112 inside. The threaded groove 208 is provided with a bearing groove 2081 inside. The bearing ball 2112 meshes with the bearing groove 2081. The bearing ball 2112 and the bearing groove 2081 make the rotating block a211 rotate more smoothly along the bearing groove 2081 and avoid mutual interference.

[0033] The equipment box a206 has two motors b210 installed inside. The output ends of the two motors b210 are connected to the upper and lower rotating blocks a211 respectively through two pulley sets a212. The two motors b210 drive the pulley sets a212 to rotate, which in turn drives the upper and lower rotating blocks a211 to rotate.

[0034] A device box b215 is installed at the bottom of the movable block 202. A lead screw b216 is installed in the middle of the device box b215. The lead screw b216 is the same as the lead screw a207, and both have threaded grooves 208, strip grooves 209, and bearing grooves 2081. Two rotating blocks b219 are installed inside the device box b215, which are arranged in a front-to-back manner. The two rotating blocks b219 have the same function as the two rotating blocks a211. The interior of the front rotating block b219... A retaining bar 2111 is also provided. The rotation of the front rotating block b219 is connected to the outside of the lead screw b216. The retaining bar 2111 inside the front rotating block b219 engages with the strip groove 209 on the outside of the lead screw b216. Then, when the front rotating block b219 rotates, it drives the retaining bar 2111 inside to engage with the strip groove 209 on the outside of the lead screw b216, and then drives the lead screw a207 to rotate by driving the front rotating block b219.

[0035] The rear rotating block b219 is rotatably connected to the outside of the lead screw b216. The rear rotating block b219 meshes with the threaded groove 208 on the outside of the lead screw b216. The interior of the rear rotating block b219 is also provided with bearing balls 2112. The interior of the threaded groove 208 on the lead screw b216 is also provided with bearing grooves 2081, which mesh with the bearing balls 2112 inside the rear rotating block b219. The meshing of the rear rotating block b219 with the threaded groove 208 causes the lead screw b216 to move up and down when the rear rotating block b219 rotates. Similarly, the meshing of the bearing balls 2112 inside the rear rotating block b219 with the bearing grooves 2081 inside the lead screw b216 makes the rear rotating block b219 move up and down more smoothly and avoids mutual interference between the meshing teeth.

[0036] Specifically, two motors c218 are installed inside the equipment box b215. The output ends of the two motors c218 are connected to two rotating blocks b219 respectively through the pulley set b220. The two motors c218 drive the pulley set b220 connected to them to rotate, which in turn drives the rotating block b219 connected to them to rotate.

[0037] Note that when lead screws a207 and b216 move up and down via the lower rotating block a211 and the rear rotating block b219, it is necessary to prevent lead screws a207 and b216 from rotating simultaneously with the lower rotating block a211 and the rear rotating block b219. Since the upper rotating block a211 and the front rotating block b219 engage with the slots 209 on lead screws a207 and b216 via their internal retaining strips 2111, it is only necessary to restrict their connection during up-and-down and back-and-forth movement. The upper rotating block a211 and the front rotating block b219 can rotate simultaneously. Then, by limiting the output terminals of motors b210 and c218, which are connected to the upper rotating block a211 and the front rotating block b219, to be locked when not powered, motors b210 and c218 are selected as "YEJ series electromagnetic brake motors". The rear end of the motor is equipped with an electromagnetic mechanical brake device. When the motor stops, the brake locks the motor shaft through the brake pads acting on the motor main shaft to prevent the motor from moving due to external force.

[0038] When the upper rotating block a211 and the front rotating block b219 respectively engage with the strip groove 209 on the outside of the lead screw a207 and lead screw b216 through their internal retaining strip 2111, thereby driving the lead screw a207 and lead screw b216 to rotate, since the lower rotating block a211 and the rear rotating block b219 respectively engage with the thread groove 208 on the lead screw a207 and lead screw b216, in order to avoid the lead screw a207 and lead screw b216 being affected by the engagement of the lower rotating block a211 and the rear rotating block b219 with the thread groove 208 when rotating, the motors b210 and c218 connected to the lower rotating block a211 and the rear rotating block b219 respectively are both ordinary model motors. The purpose is to make the lower rotating block a211 and the rear rotating block b219 rotate simultaneously with the lead screw a207 and lead screw b216.

[0039] Specifically, an electromagnet 213 is fixedly connected to the bottom end of the lead screw a207. The up and down movement of the lead screw a207 drives the electromagnet 213 to move up and down. When the electromagnet 213 is energized and generates magnetic force, it can attract the gas cylinder, thereby driving the gas cylinder to move up and down. At the same time, the rotation of the lead screw a207 can drive the electromagnet 213 to rotate, thereby adjusting the angle of the gas cylinder so that the interface of the gas cylinder is aligned with the gas nozzle 221, which facilitates subsequent connection.

[0040] Specifically, an air pump 214 is installed inside the movable block 202. A telescopic tube 217 is installed between the port of the air pump 214 and the rear end of the lead screw b216. A detachable air nozzle 221 is installed at the front end of the lead screw b216. The air nozzle 221 has multiple models and can be connected to different cylinder valve ports.

[0041] The valve 221 has a threaded interface. The valve 221 is rotated by the screw b216, which in turn drives the valve 221 to rotate, thereby connecting it to the valve of the gas cylinder. The gas pump 214 fills the gas cylinder with gas and exhausts the gas, thereby achieving internal pressurization and negative pressure.

[0042] Working principle:

[0043] Gas cylinders are transported to the vicinity of the inspection equipment 2 via conveyor belt a1. Motor a203 starts, providing power to conveyor wheel 204, causing moving block 202 to move on conveyor frame 201 to a suitable position, close to the cylinder on conveyor belt a1. Two motors b210 start, driving lower rotating block a211 to rotate via pulley group a212. Lower rotating block a211 meshes with the threaded groove 208 on the outside of screw a207. Then, the rotation of lower rotating block a211 drives screw a207 to move up and down. Screw a207 moves down, causing electromagnet 213 to approach the top of the cylinder. Electromagnet 213 is energized and generates magnetic force, attracting the top of the cylinder. Then, pulley group a212 drives lower rotating block a211 to rotate in the opposite direction, thereby driving screw a207 to move up, thus making the valve of the cylinder flush with the gas nozzle 221.

[0044] The upper rotating block a211 is driven to rotate by the pulley assembly a212. The upper rotating block a211 engages with the strip groove 209 on the outside of the lead screw a207 through the internal retaining strip 2111, thereby driving the lead screw a207 to rotate. The lead screw a207 drives the electromagnet 213 to rotate, thereby driving the cylinder to rotate, so that the valve on the cylinder is aligned with the gas nozzle 221.

[0045] Two motors c218 start, driving two rotating blocks b219 to rotate via pulley set b220. The front rotating block b219 meshes with the slot 209 of the lead screw b216, driving the lead screw b216 to rotate. The rear rotating block b219 meshes with the threaded groove 208 of the lead screw b216, pushing the lead screw b216 forward, bringing the air nozzle 221 close to the cylinder valve. According to the model of the cylinder valve, the appropriate model of air nozzle 221 is selected and installed at the front end of the lead screw b216. The lead screw b216 continues to rotate, and the thread at the interface of the air nozzle 221 connects with the cylinder valve, realizing the connection between the air nozzle 221 and the cylinder.

[0046] The air pump 214 is started, and air is injected into the cylinder through the telescopic tube 217, the lead screw b216 and the air nozzle 221 to pressurize the inside of the cylinder. Then, the air pump 214 extracts the gas from the cylinder to achieve negative pressure inside the cylinder. During the pressurization and negative pressure process inside the cylinder, two image acquisition devices 3 acquire images of the cylinder body and analyze the changes in the cylinder body. As shown in Figure 1, the cylinder has five sequential movement paths on the conveyor frame 201, namely ABCDE. Path A is the process of negative pressure after the cylinder is lifted, Path B is the path of detecting changes in the cylinder body under negative pressure, Path C is the pressurization path, Path D is the path of detecting changes in the cylinder body under pressurization, and Path E is the path of balancing the internal and external pressure difference after detection.

[0047] Two motors C218 rotate in opposite directions, driving rotating block B219 to rotate in the opposite direction. The front rotating block B219 drives the lead screw B216 to rotate in the opposite direction, causing the gas nozzle 221 to separate from the gas cylinder valve. The rear rotating block B219 pushes the lead screw B216 to retract backward. Two motors B210 rotate in opposite directions, driving rotating block A211 to rotate in the opposite direction. The upper rotating block A211, through meshing with the threaded groove 208, drives the lead screw A207 to move downward, placing the gas cylinder on the conveyor belt B4. The electromagnet 213 is de-energized, loses its magnetic force, and no longer attracts the gas cylinder. The gas cylinder is output through the conveyor belt B4, completing this pressure test process. Motor A203 starts, driving the moving block 202 to move to the initial position on the conveyor frame 201, preparing for the next gas cylinder pressure test.

[0048] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0049] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A gas cylinder pressure testing device, comprising a lifting and testing device (2), characterized in that, The right side of the inspection equipment (2) is provided with two conveyor lines, conveyor belt a (1) and conveyor belt b (4), and the left side of the inspection equipment (2) is provided with two image acquisition devices (3). The inspection equipment (2) includes a conveyor frame (201), on which multiple moving blocks (202) move. A motor a (203) is installed on the rear side of the moving block (202). An equipment box a (206) is installed on the side of the moving block (202) away from the motor a (203). A lead screw a (207) is provided in the middle of the equipment box a (206). A threaded groove (208) and a strip groove (209) are respectively opened on the lead screw a (207). Two rotating blocks a (211) are rotatably connected inside the equipment box a (206). Two motors are installed inside the equipment box a (206). b (210), the output ends of the two motors b (210) are connected to the upper and lower rotating blocks a (211) respectively through two pulley sets a (212); the moving block (202) is equipped with an air pump (214), and a telescopic tube (217) is installed between the port of the air pump (214) and the rear end of the lead screw b (216). The front end of the lead screw b (216) is equipped with a detachable air nozzle (221), and the air nozzle (221) has multiple models; the steel cylinder has five moving pipeline paths in sequence on the conveyor frame (201), namely ABCDE. Path A is the process of negative pressure after the steel cylinder is lifted, Path B is the path of detecting the change of the cylinder body under negative pressure, Path C is the path of pressurization, Path D is the path of detecting the change of the cylinder body under pressurization, and Path E is the path of balancing the internal and external pressure difference after detection.

2. The gas cylinder pressure detection device according to claim 1, characterized in that, The bottom of the movable block (202) is equipped with an equipment box b (215). A lead screw b (216) is provided in the middle of the equipment box b (215). The lead screw b (216) has a threaded groove (208) and a strip groove (209) on its outside. Two rotating blocks b (219) are installed inside the equipment box b (215) and are arranged in opposite directions. The two rotating blocks b (219) are rotatably connected to the outside of the lead screw b (216). Two motors c (218) are installed inside the equipment box b (215). The output ends of the two motors c (218) are connected to the two rotating blocks b (219) respectively through a pulley group b (220).

3. The gas cylinder pressure detection device according to claim 1, characterized in that, The inner side of the movable block (202) is rotatably connected to a conveyor wheel (204) and an auxiliary wheel (205). A motor a (203) is installed on one side of the movable block (202). The output end of the motor a (203) is connected to the conveyor wheel (204). An electromagnet (213) is fixedly connected to the bottom end of the lead screw a (207).

4. The gas cylinder pressure detection device according to claim 1, characterized in that, The conveyor belt a (1) is the input, and the conveyor belt b (4) is the output.

5. A gas cylinder pressure testing device according to claim 1, characterized in that, The upper rotating block a (211) is provided with a retaining strip (2111) inside. The retaining strip (2111) inside the upper rotating block a (211) engages with the strip groove (209) on the outside of the lead screw a (207). The lower rotating block a (211) engages with the thread groove (208) on the outside of the lead screw a (207). The lower rotating block a (211) is provided with a bearing ball (2112) inside. The thread groove (208) is provided with a bearing groove (2081) inside. The bearing ball (2112) engages with the bearing groove (2081).

6. A gas cylinder pressure testing device according to claim 2, characterized in that, The rotating block b (219) on the front side is also provided with a rotating block a (211). The outer side of the lead screw b (216) is provided with a strip groove (209). The rotating block a (211) inside the rotating block b (219) on the front side meshes with the strip groove (209) on the outer side of the lead screw b (216). The outer side of the lead screw b (216) is provided with a thread groove (208). The rotating block b (219) on the rear side meshes with the thread groove (208) on the outer side of the lead screw b (216). The rotating block b (219) on the rear side is provided with a bearing ball (2112). The thread groove (208) on the outer side of the lead screw b (216) is provided with a bearing groove (2081). The bearing ball (2112) inside the rotating block b (219) on the rear side meshes with the bearing groove (2081) on the outer side of the lead screw b (216).

7. The gas cylinder pressure detection device according to claim 1, characterized in that, The gas nozzle (221) has a threaded interface, which is connected to the valve port of the gas cylinder by rotating the lead screw b (216).

Images