Nitrous oxide gas cylinder airtightness detection equipment

Abstract

The utility model discloses nitrous oxide gas cylinder airtightness detection equipment which comprises a water storage tank, the side wall of the water storage tank is fixedly connected with a pair of hydraulic cylinders, the tops of the pair of hydraulic cylinders are jointly and fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a pair of first sliding rails, the pair of first sliding rails are of a symmetrical structure, and the pair of first sliding rails are arranged on the supporting plate. A two-way screw is rotationally connected into the first sliding rail, a pair of clamping plates is in threaded connection with the middle of the two-way screw and is of a symmetrical structure, the side wall of the water storage tank communicates with a water inlet pipe and a water drainage pipe, the height of the water inlet pipe is larger than that of the water drainage pipe, and a transmission assembly and a buffering assembly are arranged at the top of the supporting plate. The two-way screw rod is arranged to be connected with the clamping plate, so that the gas cylinder can be conveniently fixed when the gas cylinder is detected, the stability of the position of the gas cylinder is improved, and the situation that the detection result is influenced by bubbles caused by position movement of the gas cylinder in the water body is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness detection technical field, and specifically, it mainly relates to a nitrogen monoxide gas cylinder airtightness detection equipment. BACKGROUND

[0002] Nitrogen monoxide is a kind of chemical with multiple purposes, and is widely used in medical treatment, industry, food processing and environmental protection and other fields, and nitrogen monoxide is a colorless non-combustible gas at room temperature, and nitrogen monoxide gas is usually transported and stored by using gas cylinder.

[0003] When producing and processing or recycling gas cylinder, it is an important step to detect the airtightness of gas cylinder, which can detect whether the gas cylinder leaks, and can be repaired in time to ensure the safety performance of the gas cylinder, and in long-time observation, it is found that the existing gas cylinder airtightness detection method is usually water immersion, the gas cylinder filled with certain pressure is immersed in water, and whether bubbles are generated within a certain time is observed, and the existing gas cylinder is usually directly placed on the supporting plate and then immersed in water, so that when the gas cylinder moves in water, the gas cylinder collides with water and also generates bubbles, thereby affecting the detection result. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides nitrogen monoxide gas cylinder airtightness detection equipment.

[0005] The nitrogen monoxide gas cylinder airtightness detection equipment disclosed by the utility model comprises a water storage tank, a pair of hydraulic cylinders are fixedly connected to the side wall of the water storage tank, a supporting plate is fixedly connected to the top of the pair of hydraulic cylinders, a pair of first sliding rails are fixedly connected to the top of the supporting plate, the pair of first sliding rails are symmetrical in structure, a bidirectional screw rod is rotatably connected in the first sliding rail, a pair of clamping plates are threadedly connected to the middle part of the bidirectional screw rod, the pair of clamping plates are symmetrical in structure, a water inlet pipe and a drain pipe are communicated with the side wall of the water storage tank, the height of the water inlet pipe is higher than that of the drain pipe, a transmission assembly and a buffer assembly are arranged on the top of the supporting plate, through the above structure, the bidirectional screw rod is connected with the clamping plate, so that the gas cylinder can be fixed during detection, the stability of the position of the gas cylinder is improved, the position of the gas cylinder in water is reduced, and the situation that bubbles are generated to affect the detection result is avoided.

[0006] Preferably, the transmission assembly comprises a fixed frame fixedly connected to the side wall of the supporting plate, the top of the fixed frame is higher than the top of the supporting plate, the side wall of the fixed frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first pulley, a pair of the second pulleys are fixedly connected to the side wall of the bidirectional screw, and the first pulley is connected with the pair of second pulleys through a synchronous belt. Through the above structure, the first motor is arranged to cooperate with the first pulley, the second pulley and the synchronous belt, so that two pairs of clamping plates can be driven at the same time, thereby improving the convenience and synchronization during use, and reducing the corrosion and damage of the first motor caused by immersion in water.

[0007] Preferably, the buffer assembly comprises a plurality of sets of damping spring shock absorbers, the top of each set of damping spring shock absorbers is fixedly connected with a buffer plate, and the top of the buffer plate is higher than the top of the first sliding rail. Through the above structure, the damping spring shock absorber and the buffer plate are arranged to slow down the falling speed of the gas cylinder and reduce the impact force of the gas cylinder during falling, thereby improving the stability during use.

[0008] Preferably, the side wall of the water storage tank is fixedly connected with a pair of fixed plates, a second motor is fixedly connected to the side wall of the pair of fixed plates, the side wall away from the second sliding rail of the fixed plate is fixedly connected with the second motor, the output end of the second motor is fixedly connected with a lead screw, the lead screw is rotatably connected inside the second sliding rail, the middle part of the lead screw is threadedly connected with a support plate, and the top of the support plate is fixedly connected with a fan. Through the above structure, the second motor is arranged to connect the lead screw, cooperate with the support plate and the fan, so that the gas cylinder can be dried after detection, thereby reducing the residual moisture on the surface of the gas cylinder, causing corrosion and affecting subsequent processing.

[0009] Preferably, a filter box is communicated in the middle of the water inlet pipe, and a filter screen and activated carbon are installed in the filter box. Through the above structure, the filter box is arranged to connect the water inlet pipe, so as to filter the water entering the water storage tank, thereby reducing the adhesion of silt, dust and impurities in the water to the surface of the gas cylinder, causing dirt and corrosion of the gas cylinder.

[0010] Preferably, a plurality of flow guide grooves are formed in the middle of the supporting plate, and the plurality of flow guide grooves are uniformly distributed in the middle of the supporting plate. Through the above structure, the flow guide grooves are arranged to make the water flow in the middle of the supporting plate, thereby reducing the pressure between the supporting plate and the water body when the supporting plate is lowered, and improving the stability when the supporting plate is lowered.

[0011] The beneficial effects of the present application are:

[0012] 1. The bidirectional screw is arranged to connect the clamping plate, so as to fix the gas cylinder during detection, thereby improving the stability of the position of the gas cylinder, reducing the movement of the gas cylinder in the water body, and causing the appearance of bubbles to affect the detection result.

[0013] 2, set damping spring shock absorber and buffer plate, can slow down the falling speed of the gas cylinder, can reduce the impact force of the gas cylinder when falling, to improve the stability when using. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and, together with the description, do not limit the application. In the drawings:

[0015] Figure 1 is the perspective view of the utility model;

[0016] Figure 2 is the structure schematic view of the supporting plate in the utility model;

[0017] Figure 3 is the structure schematic view of the synchronous belt in the utility model;

[0018] Figure 4 is the structure schematic view of the fan in the utility model.

[0019] In the drawings, 1, water storage tank;11, hydraulic cylinder;12, supporting plate;13, first sliding rail;14, two-way screw;15, clamping plate;16, water inlet pipe;17, drain pipe;2, fixed frame;21, first motor;22, first pulley;23, second pulley;24, synchronous belt;3, damping spring shock absorber;31, buffer plate;4, fixed plate;41, second motor;42, second sliding rail;43, lead screw;44, support plate;45, fan;5, filter box;6, flow guide groove;7, rubber pad. DETAILED DESCRIPTION

[0020] The following will disclose several embodiments of the utility model with drawings, for the purpose of clear illustration, many practical details will be described in the following description. However, it should be appreciated that these practical details should not be used to limit the utility model. That is to say, in some embodiments of the utility model, these practical details are unnecessary. In addition, for the purpose of simplifying the drawings, some conventional structures and parts will be drawn in a simple schematic way in the drawings.

[0021] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the utility model are used only to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, such as shown in the drawings, if the specific posture changes, the directional indications will also change accordingly.

[0022] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the utility model, which is only to distinguish the parts or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary technical personnel in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0023] In order to further understand the utility model content, characteristics and effects of the utility model, the following examples are given, and the details are described as follows with reference to the drawings:

[0024] With reference to Figures 1-3 The nitrogen monoxide cylinder airtightness detection equipment in the embodiment includes a water storage tank 1, a pair of hydraulic cylinders 11 are fixedly connected to the side wall of the water storage tank 1, a pair of first sliding rails 13 are fixedly connected to the top of the water storage tank 1, the first sliding rails 13 are in a symmetrical structure, a pair of clamping plates 15 are threadedly connected to the middle part of the bidirectional screw rod 14, the clamping plates 15 are in a symmetrical structure, a water inlet pipe 16 and a drain pipe 17 are communicated with the side wall of the water storage tank 1, the height of the water inlet pipe 16 is higher than that of the drain pipe 17, a transmission assembly and a buffer assembly are arranged on the top of the water storage tank 1, when the cylinder airtightness is detected, the external water source is connected to the water inlet pipe 16 to inject water into the water storage tank 1, then the cylinder filled with a certain pressure is placed horizontally on the top of the bidirectional screw rod 14 on both sides, at this time, the buffer assembly is in contact with the lower part of the cylinder, so that the cylinder falls on the top of the bidirectional screw rod 14, then the transmission assembly is started to drive the bidirectional screw rod 14 to rotate, so that the clamping plates 15 move oppositely, when the clamping plates 15 move to the both sides of the cylinder and are in contact with the surface of the cylinder, the cylinder can be clamped and fixed, then the hydraulic cylinders 11 are retracted to make the water storage tank 1 and the cylinder enter the water storage tank 1, when the cylinder immersion detection in the water storage tank 1 is finished, the water inlet pipe 16 is stretched to lift the water storage tank 1 and the cylinder, through the above structure, the bidirectional screw rod 14 connected with the clamping plates 15 can be used to fix the cylinder during the detection of the cylinder, so as to improve the stability of the position of the cylinder, and reduce the movement of the cylinder in the water, so as to avoid the situation that the bubbles affect the detection result.

[0025] With reference to Figure 3The transmission assembly includes a fixed frame 2, which is fixedly connected to the side wall of the support plate 12. The top of the fixed frame 2 is higher than the top of the support plate 12. A first motor 21 is fixedly connected to the side wall of the fixed frame 2, and a first pulley 22 is fixedly connected to the output end of the first motor 21. A pair of second pulleys 23 are fixedly connected to the side walls of the two-way screws 14. The first pulley 22 and the pair of second pulleys 23 are connected by a synchronous belt 24. During operation, starting the first motor 21 can drive the first pulley 22 to rotate, and at this time the first pulley 22 will drive the synchronous belt. The first motor 24 rotates with a pair of second pulleys 23. At this time, the second pulleys 23 drive the bidirectional screw 14 to rotate, thereby causing the clamping plates 15 to move in opposite directions. When the first motor 21 rotates in the forward or reverse direction, it can drive the clamping plates 15 to move closer or further apart. Through the above structure, the first motor 21 and the first pulley 22 are set to cooperate with the second pulley 23 and the synchronous belt 24 to drive the two pairs of clamping plates 15 to move simultaneously, thereby improving the convenience and synchronization during use, and reducing the corrosion and damage caused by the first motor 21 being immersed in water.

[0026] Reference Figure 1 and Figure 3 The buffer assembly includes multiple sets of damping spring shock absorbers 3. Each set of damping spring shock absorbers 3 has a buffer plate 31 fixed to its top. The top of the buffer plate 31 is higher than the top of the first slide rail 13. During operation, when the gas cylinder is placed on the top of the support plate 12, the gas cylinder will first contact the buffer plate 31. At this time, the damping spring shock absorber 3 will contract to buffer and slow down the descent speed of the gas cylinder. After the gas cylinder lands on the top of the bidirectional screw 14, the clamping plate 15 clamps and fixes the gas cylinder. Through the above structure, the damping spring shock absorber 3 and the buffer plate 31 can slow down the falling speed of the gas cylinder and reduce the impact force when the gas cylinder falls, thus improving the stability during use.

[0027] Reference Figure 1 and Figure 4 A pair of fixing plates 4 are fixed to the side wall of the water storage tank 1. A second motor 41 is fixed to the side wall of the pair of fixing plates 4. The second motor 41 is fixed to the side wall of the fixing plate 4 away from the second slide rail 42. A lead screw 43 is fixed to the output end of the second motor 41. The lead screw 43 is rotatably connected inside the second slide rail 42. A support plate 44 is threaded to the middle of the lead screw 43. A fan 45 is fixed to the top of the support plate 44. During operation, after the gas cylinder is pushed out of the water after the test, the fan 45 is started to blow air downwards. Then the second motor 41 is started to rotate back and forth, which can drive the lead screw 43 to rotate back and forth, thereby causing the support plate 44 and the fan 45 to move back and forth. At this time, the gas cylinder can be dried from above. Through the above structure, the second motor 41 is connected to the lead screw 43, and together with the support plate 44 and the fan 45, the gas cylinder can be dried after the test to reduce the residual moisture on the surface of the gas cylinder, which may lead to corrosion and affect subsequent processing.

[0028] Reference Figure 1 The water inlet pipe 16 is connected to a filter box 5 in the middle. The filter box 5 is equipped with a filter screen and activated carbon. When water is injected into the water storage tank 1 from the water inlet pipe 16, the water will be filtered as it flows through the filter box 5, removing impurities such as mud and dust from the water. Through the above structure, the filter box 5 is connected to the water inlet pipe 16 to filter the water entering the water storage tank 1, thereby reducing the adhesion of mud, dust and impurities in the water to the surface of the gas cylinder, which would cause dirt and corrosion to the gas cylinder.

[0029] Reference Figure 1 and Figure 2 The pallet 12 has multiple guide channels 6 in the middle, which are evenly distributed in the middle of the pallet 12. During operation, when the pallet 12 descends into the water in the water storage tank 1, the water will overflow from the guide channels 6 to the top of the pallet 12. Through the above structure, the guide channels 6 can make the water flow in the middle of the pallet 12, so as to reduce the pressure between the pallet 12 and the water when it descends, thereby improving the stability of the pallet 12 when it descends.

[0030] Reference Figure 3 A rubber pad 7 is fixed to the top of the buffer plate 31. During operation, before the gas cylinder comes into contact with the buffer plate 31, the rubber pad 7 will be in contact with the surface of the gas cylinder at the top of the buffer plate 31. Through the above structure, the rubber pad 7 is connected to the buffer plate 31, and its flexible material can reduce the wear between the gas cylinder and the buffer plate 31.

[0031] In summary: When testing the airtightness of the gas cylinder, an external water source is connected to the inlet pipe 16 to inject water into the water storage tank 1. Then, the gas cylinder, filled with a certain pressure, is placed horizontally on top of the two-way screws 14 on both sides. At this time, the buffer assembly contacts the bottom of the gas cylinder, causing the gas cylinder to fall on top of the two-way screws 14. Then, the transmission assembly is activated to drive the two-way screws 14 to rotate, which causes the clamping plates 15 to move in opposite directions. When the clamping plates 15 move to both sides of the gas cylinder and contact its surface, the gas cylinder can be clamped and fixed. Then, the hydraulic cylinder 11 is activated to retract, causing the support plate 12 and the gas cylinder to enter the water storage tank 1. After the gas cylinder is immersed in the water storage tank 1 for testing, the inlet pipe 16 is activated to extend, lifting the support plate 12 and the gas cylinder. The first motor 21 is activated, which drives the first pulley 22 to rotate. At this time, the first pulley 22 will drive the synchronous belt 24 and a pair of second pulleys 23 to rotate. At this time, the second pulleys 23 will drive the two-way screws 14 to rotate, thereby causing the clamping plates 15 to move in opposite directions. When the first motor 21 rotates in the forward direction or When rotating in the reverse direction, the clamping plates 15 can move closer or further apart. When the gas cylinder is placed on top of the support plate 12, the gas cylinder will first contact the buffer plate 31. At this time, the damping spring shock absorber 3 will contract to buffer and slow down the descent speed of the gas cylinder. After the gas cylinder lands on top of the double-acting screw 14, the clamping plates 15 will clamp and fix the gas cylinder. After the test is completed, the gas cylinder is pushed out of the water, and the blower 45 is started to blow air downwards. Then the second motor 41 is started to rotate back and forth, which can drive... The lead screw 43 reciprocates, causing the support plate 44 and the fan 45 to move back and forth. At this time, air drying can be carried out from above the gas cylinder. When water is injected into the water storage tank 1 from the water inlet pipe 16, the water will be filtered through the filter box 5 to remove impurities such as mud and dust. When the tray 12 descends into the water in the water storage tank 1, the water will overflow from the guide channel 6 to the top of the tray 12. Before the gas cylinder contacts the buffer plate 31, the rubber pad 7 located on the top of the buffer plate 31 will contact the surface of the gas cylinder.

[0032] 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 to the spirit and principles of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A device for testing the airtightness of nitrous oxide cylinders, characterized in that, The system includes a water storage tank (1), a pair of hydraulic cylinders (11) fixed to the side wall of the water storage tank (1), a support plate (12) fixed to the top of the pair of hydraulic cylinders (11), a pair of first slide rails (13) fixed to the top of the support plate (12), the pair of first slide rails (13) having a symmetrical structure, a bidirectional screw (14) rotatably connected inside the first slide rails (13), a pair of clamps (15) threadedly connected to the middle of the bidirectional screw (14), the pair of clamps (15) having a symmetrical structure, an inlet pipe (16) and a drain pipe (17) connected to the side wall of the water storage tank (1), the height of the inlet pipe (16) being higher than that of the drain pipe (17), and a transmission assembly and a buffer assembly provided on the top of the support plate (12).

2. The nitrous oxide cylinder airtightness testing device according to claim 1, characterized in that, The transmission assembly includes a fixed frame (2), which is fixed to the side wall of the pallet (12). The top of the fixed frame (2) is higher than the top of the pallet (12). A first motor (21) is fixed to the side wall of the fixed frame (2). A first pulley (22) is fixed to the output end of the first motor (21). A pair of bidirectional screws (14) are each fixed to the side wall with a second pulley (23). The first pulley (22) and the pair of second pulleys (23) are connected by a synchronous belt (24).

3. The nitrous oxide cylinder airtightness testing device according to claim 1, characterized in that, The buffer assembly includes multiple sets of damping spring shock absorbers (3), and each set of damping spring shock absorbers (3) has a buffer plate (31) fixed to its top. The top of the buffer plate (31) is higher than the top of the first slide rail (13).

4. The nitrous oxide cylinder airtightness testing device according to claim 1, characterized in that, A pair of fixing plates (4) are fixed to the side wall of the water storage tank (1). A second motor (41) is fixed to the side wall of the pair of fixing plates (4). The second motor (41) is fixed to the side wall of the fixing plate (4) away from the second slide rail (42). A lead screw (43) is fixed to the output end of the second motor (41). The lead screw (43) is rotatably connected inside the second slide rail (42). A support plate (44) is threaded to the middle of the lead screw (43). A fan (45) is fixed to the top of the support plate (44).

5. The nitrous oxide cylinder airtightness testing device according to claim 1, characterized in that, The water inlet pipe (16) is connected to a filter box (5) in the middle, and the filter box (5) is equipped with a filter screen and activated carbon.

6. The nitrous oxide cylinder airtightness testing device according to claim 1, characterized in that, The tray (12) has multiple guide grooves (6) in the middle, and the multiple guide grooves (6) are evenly distributed in the middle of the tray (12).

7. The nitrous oxide cylinder airtightness testing device according to claim 3, characterized in that, A rubber pad (7) is fixed to the top of the buffer plate (31).

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