Airtightness detection device

Abstract

The utility model discloses an air tightness detection device, which relates to the technical field of air tightness detection equipment, and comprises a rack used for installing a first driving cylinder, the first driving cylinder is connected with a lifting frame through a first piston rod, one side of the lifting frame is provided with a bracket, and the bracket is used for placing an air cylinder; the water tank is arranged on one side of the rack, and liquid used for immersing the air storage cylinder is arranged in the water tank; the second driving air cylinder is arranged at the first end of the bracket and connected with the protection push disc through a second piston rod. According to the air tightness detection device, the technical problems that when an existing air tightness detection device is used for detection, the air storage cylinder needs to be manually pressed and immersed in water, the air leakage position is not easy to observe, and the air storage cylinder moves in the water tank when being internally inflated, so that the surface of the cylinder body is easily scratched and collided are solved, and the air storage cylinder is fixed through the protection push disc and the bracket; the labor intensity of workers is reduced, the air leakage position of the air cylinder can be quickly found, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight detection equipment, in particular to an airtight detection device. Background Art

[0002] With the development of economy and technology, the ownership of various transport vehicles is getting higher and higher. The air storage cylinder detection device plays a major role in the production and sealing detection of air storage cylinders. This airtight detection device is a product developed for the sealing performance detection of truck brake air storage cylinders and can achieve the function of sealing detection.

[0003] The existing airtight detection device has the following problems in the use process: on the one hand, during the water pressure airtight detection, it is necessary to manually press and immerse it in water, and the air leakage position is not easy to observe. Moreover, when the air storage cylinder is inflated inside, it is easy to float out of the water surface. During the detection, it is necessary to manually press the air storage cylinder underwater to observe, resulting in low detection efficiency and high labor intensity. On the other hand, due to the lack of a fixing device, the internal inflation causes the air storage cylinder to move in the water tank, which is easy to scratch and bump the surface of the cylinder body, affecting the appearance and quality of the workpiece. Therefore, an airtight detection device for solving the above problems is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an airtight detection device, which solves the technical problems that the existing airtight detection device needs to manually press and immerse the air storage cylinder in water during detection, the air leakage position is not easy to observe, and the air storage cylinder moves in the water tank during internal inflation, which is easy to scratch and bump the surface of the cylinder body.

[0005] To achieve the above purpose, the utility model provides an airtight detection device, including:

[0006] A frame for installing a first driving cylinder. The first driving cylinder is connected to a lifting frame through a first piston rod. A bracket is arranged on one side of the lifting frame, and the bracket is used for placing an air storage cylinder;

[0007] A water tank is arranged on one side of the frame, and a liquid for submerging the air storage cylinder is provided in the water tank;

[0008] A second driving cylinder is arranged at the first end of the bracket. The second driving cylinder is connected to a protective push plate through a second piston rod, and the protective push plate abuts against the end face of the air storage cylinder.

[0009] Preferably, it further includes an air inflation pump for delivering gas into the air storage cylinder.

[0010] Preferably, a knob assembly is arranged at the top of the water tank, and the knob assembly is used to control the lifting of the first driving cylinder, the telescoping of the second driving cylinder, and the start and stop of the air inflation pump.

[0011] Preferably, a plurality of sealing plugs are arranged on the inner side surface of the second end of the bracket, and the sealing plugs are used for sealing the end head of the air storage cylinder.

[0012] Preferably, the whole sealing plug is in a conical shape, and the tip of the cone faces the air storage cylinder.

[0013] Preferably, the bracket includes: a support frame and two support plates arranged on the support frame. Two support rollers are arranged between the two support plates, and the outer side walls of the two support rollers abut against the outer side wall of the air storage cylinder.

[0014] Preferably, the second piston rod is coaxially arranged with the air storage cylinder, and the support rollers are symmetrically arranged on both sides of the second driving cylinder.

[0015] Preferably, a plurality of connecting rods are arranged on one side of the support frame, a hanging plate is arranged on one side of the lifting frame, and the connecting rods are lapped on the hanging plate.

[0016] Preferably, a fitting gap is provided between the connecting rod and the lifting frame, and the fitting gap is larger than the wall thickness of the water tank.

[0017] Preferably, the whole protective push plate is in a conical shape, and the side surface of the protective push plate fits the end face of the air storage cylinder.

[0018] Compared with the above background technology, an airtight detection device provided by the present utility model fixes the air storage cylinder through the protective push plate and the bracket, and controls the lifting of the bracket through the first driving cylinder to stably immerse the air storage cylinder in the water tank, reducing the labor intensity of workers. At the same time, it can quickly find the air leakage position of the air storage cylinder and improve the detection efficiency. On the other hand, the air storage cylinder is fixed through the protective push plate and the bracket, effectively avoiding the air storage cylinder from moving back and forth in the water tank, thereby avoiding scratching and knocking the surface of the air storage cylinder and ensuring the appearance and quality of the air storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0020] Figure 1 It is a three-dimensional structure diagram of the airtight detection device provided by the embodiment of the present utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of the airtight detection device provided by the embodiment of the present utility model;

[0022] Figure 3 This is a three-dimensional structure diagram after hiding the water tank of the airtight detection device provided by the embodiment of the present utility model.

[0023] Specifically, 1 - frame; 2 - water tank; 3 - first driving cylinder; 4 - lifting frame; 5 - bracket; 501 - support frame; 502 - support plate; 503 - support roller; 6 - air storage cylinder; 7 - second driving cylinder; 8 - protective push plate; 9 - knob assembly; 10 - sealing plug; 11 - connecting rod; 12 - hanging plate. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In order to enable those skilled in the art in the technical field to better understand the solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] As Figure 1 shown, an airtight detection device includes: a frame 1 and a water tank 2 provided on one side of the frame 1.

[0027] Among them, the frame 1 is used to install the first driving cylinder 3. The first driving cylinder 3 is connected to the lifting frame 4 through the first piston rod. The first driving cylinder 3 is placed vertically, that is, the extending direction of the first piston rod is the same as the height direction of the frame 1. Specifically, a bracket 5 is provided on the front side of the lifting frame 4 and is fixedly connected to the bracket 5. The bracket 5 is used to place the air storage cylinder 6, and the air storage cylinder 6 is horizontally placed on the bracket 5.

[0028] The water tank 2 is provided on the front side of the frame 1. A liquid for submerging the air storage cylinder 6 is provided in the water tank 2. Preferably, water is contained in the water tank 2, and the air storage cylinder 6 can be completely submerged by water, and at the same time, the water will not overflow from the water tank 2 to ensure that whether the air storage cylinder 6 leaks can be observed quickly and comprehensively.

[0029] In addition, a second driving cylinder 7 is arranged at the right end of the bracket 5. The second driving cylinder 7 is connected to a protective push plate 8 through a second piston rod. Herein, the second driving cylinder 7 is horizontally placed, that is, the telescopic direction of the second piston rod is consistent with the length direction of the bracket 5. In addition, the protective push plate 8 abuts against the end face of the air storage cylinder 6 and is used to clamp the air storage cylinder 6, ensuring that after the air storage cylinder 6 is completely immersed in water, it will not move back and forth under the action of buoyancy, effectively preventing the air storage cylinder 6 from moving back and forth in the water tank 2, thereby avoiding scratching and bumping the surface of the air storage cylinder 6 and protecting the appearance and quality of the air storage cylinder 6.

[0030] During use, the air storage cylinder 6 is placed on the bracket 5. The second driving cylinder 7 drives the second piston rod to extend. While the second piston rod extends, it drives the protective push plate 8 to move closer to the air storage cylinder 6 and gradually pushes the air storage cylinder 6 towards the left end of the bracket 5 until the bracket 5 and the protective push plate 8 stably clamp the air storage cylinder 6. The first driving cylinder 3 drives the support frame 501 to move downward through the first piston rod, and the support frame 501 drives the bracket 5 to move downward synchronously. By controlling the lifting of the bracket 5 through the first driving cylinder 3, the air storage cylinder 6 is stably immersed in the water tank 2, reducing the labor intensity of workers. After the air storage cylinder 6 is completely immersed, the air storage cylinder 6 is inflated. After inflating to the specified pressure and maintaining the pressure for a certain period of time, observe whether there are bubbles emerging at the joint to judge the airtightness of the air storage cylinder 6.

[0031] An air inflation pump (not shown in the figure) is arranged on one side of the frame 1, specifically, it can be arranged on the frame 1. After the air storage cylinder 6 is completely immersed, gas is conveyed into the air storage cylinder 6 through the air inflation pump to assist in checking whether the air storage cylinder 6 leaks. Herein, an air exchange port communicating with the inside of the air storage cylinder 6 is arranged on the outer wall of the air storage cylinder 6, and the air storage cylinder 6 is inflated through the air exchange port to reach the specified pressure, completing the inflation.

[0032] It should be noted that a knob assembly 9 is arranged at the top of the water tank 2. The knob assembly 9 includes: a first knob, a second knob, and a third knob. Specifically, the first knob, the second knob, and the third knob are arranged at the top of the water tank 2. The first knob is wire-connected to the first driving cylinder 3 and controls the lifting of the first driving cylinder 3. The second knob is wire-connected to the second driving cylinder 7 and controls the telescopic movement of the first driving cylinder 3. The third knob is wire-connected to the air inflation pump and controls the start and stop of the air inflation pump. After the air storage cylinder 6 is placed on the bracket 5, the operator only needs to control the first knob, the second knob, and the third knob in sequence to complete the airtightness detection of the air storage cylinder 6. That is, under the control of the first knob, the second knob, and the third knob, the air storage cylinder 6 can automatically lift and lower as well as inflate and deflate, enabling continuous detection, effectively improving the efficiency of the air storage cylinder 6 during airtightness detection, and thus improving the efficiency of assembly line production.

[0033] As Figure 2As shown in the figure, a plurality of sealing plugs 10 are arranged on the inner side surface of the second end of the bracket 5. The sealing plugs are used to seal the end head of the air storage cylinder 6. Among them, the positions of the sealing plugs 10 are designed according to the positions of the end heads on the end surface of the left end of the air storage cylinder 6. When the left end of the air storage cylinder 6 gradually approaches the left end of the bracket 5, the sealing plugs 10 gradually seal the end heads to seal the air storage cylinder 6, avoiding leakage problems after the air inflation pump inflates the air storage cylinder 6 later, and effectively improving the accuracy of the airtightness detection measurement results.

[0034] In addition, the sealing plug 10 is integrally conical, and the tip of the cone faces the air storage cylinder 6. The outer peripheral side surface of the sealing plug 10 fits with the inner peripheral side surface of the end head. Further, the sealing plug 10 is made of rubber material. That is, during the process of the sealing plug 10 entering the end head, the outer side wall of the sealing plug 10 gradually presses against the inner side wall of the end head, increasing the sealing effect on the air storage cylinder 6 and further ensuring the reliability of the airtightness detection.

[0035] In an embodiment of the present utility model, the whole bracket 5 can be placed into the water tank 2. Further, the bottom surface of the bracket 5 can fit the bottom surface of the water tank 2. The bracket 5 includes: a support frame 501 and two support plates 502 arranged on the support frame 501. Among them, the two support plates 502 are arranged in parallel and are both perpendicular to the support frame 501. Preferably, the support plate 502 and the support frame 501 are integrally connected by welding, and the structural stability is better. It can also be connected by bolt connection for easy disassembly and assembly later. In addition, two support rollers 503 are arranged between the two support plates 502, and the outer side walls of the two support rollers 503 abut against the outer side wall of the air storage cylinder, which is used to assist in supporting the air storage cylinder 6 and enhancing the overall stability when the air storage cylinder 6 is clamped and fixed by the protective push plate 8.

[0036] In addition, the second piston rod is coaxially arranged with the air storage cylinder 6 to ensure that the protective push plate 8 can apply a more stable thrust along the air storage cylinder 6, and the support rollers 503 are symmetrically arranged on both sides of the second driving cylinder 7, specifically arranged below the support rollers, to assist in correcting the position of the air storage cylinder 6.

[0037] In an embodiment of the present utility model, a plurality of connecting rods 11 are arranged on one side of the support frame 501. The connecting rods 11 are integrally perpendicular to the support frame 501, and a bending part is arranged at the upper end of the connecting rod 11. A hanging plate 12 is arranged on one side of the lifting frame 4, and the bending part of the connecting rod 11 is lapped on the upper end part of the hanging plate 12; further, the bending part and the upper end part of the hanging plate 12 are connected together by welding, and the overall structural stability is better.

[0038] In addition, a fitting clearance is provided between the connecting rod 11 and the lifting frame 4. When the whole bracket 5 enters the water tank 2, one side of the water tank 2 enters the fitting clearance to ensure that the bracket 5 can completely immerse the air storage cylinder 6 in the water tank 2. It should be noted that the fitting clearance is larger than the wall thickness of the water tank 2 to prevent the box body of the water tank 2 from touching the connecting rod 11 or the lifting frame 4.

[0039] As Figure 3 shown, in an embodiment of the present utility model, the whole protective push plate 8 is in a conical shape, with the conical tip facing away from the air storage cylinder 6, that is, the side surface of the protective push plate 8 fits the end surface of the right end of the air storage cylinder 6, increasing the contact surface between the end surface of the left end of the air storage cylinder 6 and the protective push plate 8, thereby preventing the air storage cylinder 6 from deforming due to excessive local stress intensity and playing a role in protecting the air storage cylinder 6. On the other hand, since the whole protective push plate 8 is in a conical shape, the protective push plate 8 plays a certain stabilizing role in the up and down directions of the air storage cylinder 6, preventing the air storage cylinder 6 from detaching from the protective push plate 8 due to buoyancy and improving the clamping effect on the air storage cylinder 6.

[0040] When the present utility model is in use, the air storage cylinder 6 is placed on the two supporting rollers 503. At this time, the air storage cylinder 6 is coaxial with the second piston rod, and the outer side wall of the supporting roller 503 abuts against the outer side wall of the air storage cylinder. Rotate the second knob in the positive direction to start the second driving cylinder 7. The second driving cylinder 7 drives the second piston rod to extend. While the second piston rod extends, it drives the protective push plate 8 to move closer to the air storage cylinder 6 and gradually pushes the air storage cylinder 6 towards the left end of the bracket 5 until the bracket 5 and the protective push plate 8 stably clamp the air storage cylinder 6, and the sealing plug 10 seals the end head. Rotate the first knob in the positive direction to start the first driving cylinder 3. The first driving cylinder 3 drives the support frame 501 to move downward through the first piston rod, and the support frame 501 drives the bracket 5 to move downward synchronously. After the air storage cylinder 6 is completely immersed, rotate the third knob in the positive direction to start the air pump, and inflate the air storage cylinder 6 through the air pump. After inflating to the specified pressure and maintaining the pressure for a certain time, observe whether there are bubbles emerging at the joint to judge the airtightness of the air storage cylinder 6, and complete the airtightness detection of the air storage cylinder 6.

[0041] In summary, by controlling the lifting of the bracket 5 through the first driving cylinder 3, the air storage cylinder 6 is stably immersed in the water tank 2, reducing the labor intensity of workers. At the same time, the air leakage position of the air storage cylinder 6 can be quickly found, improving the detection efficiency. Moreover, the air storage cylinder 6 is fixed by the protective push plate 8 and the bracket 5, preventing the air storage cylinder 6 from moving back and forth in the water tank 2, thereby avoiding scratching and knocking the surface of the air storage cylinder 6 and ensuring the appearance and quality of the air storage cylinder 6.

[0042] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0043] In this article, specific examples are used to elaborate on the principle and implementation of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. An airtight detection device, characterized in that: include: A frame, used for installing a first driving cylinder, wherein the first driving cylinder is connected to a lifting frame via a first piston rod, and a bracket is provided on one side of the lifting frame, and the bracket is used for placing an air storage cylinder; A water tank is arranged on one side of the frame, wherein the water tank is provided with liquid for immersing the gas storage cylinder; The second driving cylinder is arranged at the first end of the bracket. The second driving cylinder is connected to the protective push plate through a second piston rod. The protective push plate abuts against the end surface of the air storage cylinder.

2. The airtightness detection device according to claim 1, characterized in that: Also includes: An air pump is used to transport gas into the air storage cylinder.

3. The airtightness detection device according to claim 2, characterized in that: A knob assembly is arranged on the top of the water tank, and the knob assembly is used to control the lifting and lowering of the first driving cylinder, the extension and retraction of the second driving cylinder, and the start and stop of the air pump.

4. The airtightness detection device according to claim 1, characterized in that: A plurality of sealing plugs are arranged on the inner side surface of the second end of the bracket, and the sealing plugs are used to seal the sealing head of the gas storage cylinder.

5. The airtightness detection device according to claim 4, characterized in that: The sealing plug is in a cone shape as a whole, and the tip of the cone faces the air storage cylinder.

6. An airtightness detection device according to any one of claims 1 to 5, characterized in that: The bracket comprises: a support frame and two support plates arranged on the support frame, two support rollers are arranged between the two support plates, and the outer side walls of the two support rollers abut against the outer side wall of the air storage cylinder.

7. The airtightness detection device according to claim 6, characterized in that: The second piston rod is coaxially arranged with the air storage cylinder, and the supporting rollers are symmetrically arranged on both sides of the second driving cylinder.

8. The airtightness detection device according to claim 7, characterized in that: A plurality of connecting rods are arranged on one side of the support frame, a hanging plate is arranged on one side of the lifting frame, and the connecting rods overlap the hanging plate.

9. The airtightness detection device according to claim 8, characterized in that: A fitting gap is arranged between the connecting rod and the lifting frame, and the fitting gap is larger than the wall thickness of the water tank.

10. An airtightness detection device according to any one of claims 1 to 5, characterized in that: The protective push plate is in a cone shape as a whole, and the side surface of the protective push plate is in contact with the end surface of the gas storage cylinder.

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